misc/libphysfs/archiver_zip.c
author sheepluva
Tue, 05 Sep 2017 20:46:40 +0200
changeset 12457 e18cfe90e4e2
parent 12456 30da743f118b
child 13398 ae5d6448c5be
permissions -rw-r--r--
fix physfs using inflateCopy() (not part of miniz)
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/*
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 * ZIP support routines for PhysicsFS.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon, with some peeking at "unzip.c"
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 *   by Gilles Vollant.
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 */
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#if PHYSFS_SUPPORTS_ZIP
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#include <errno.h>
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#include <time.h>
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#include "physfs_miniz.h"
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/*
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 * A buffer of ZIP_READBUFSIZE is allocated for each compressed file opened,
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 *  and is freed when you close the file; compressed data is read into
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 *  this buffer, and then is decompressed into the buffer passed to
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 *  PHYSFS_read().
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 *
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 * Uncompressed entries in a zipfile do not allocate this buffer; they just
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 *  read data directly into the buffer passed to PHYSFS_read().
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 *
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 * Depending on your speed and memory requirements, you should tweak this
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 *  value.
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 */
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#define ZIP_READBUFSIZE   (16 * 1024)
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/*
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 * Entries are "unresolved" until they are first opened. At that time,
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 *  local file headers parsed/validated, data offsets will be updated to look
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 *  at the actual file data instead of the header, and symlinks will be
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 *  followed and optimized. This means that we don't seek and read around the
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 *  archive until forced to do so, and after the first time, we had to do
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 *  less reading and parsing, which is very CD-ROM friendly.
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 */
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typedef enum
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{
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    ZIP_UNRESOLVED_FILE,
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    ZIP_UNRESOLVED_SYMLINK,
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    ZIP_RESOLVING,
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    ZIP_RESOLVED,
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    ZIP_DIRECTORY,
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    ZIP_BROKEN_FILE,
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    ZIP_BROKEN_SYMLINK
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} ZipResolveType;
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/*
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 * One ZIPentry is kept for each file in an open ZIP archive.
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 */
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typedef struct _ZIPentry
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{
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    char *name;                         /* Name of file in archive        */
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    struct _ZIPentry *symlink;          /* NULL or file we symlink to     */
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    ZipResolveType resolved;            /* Have we resolved file/symlink? */
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    PHYSFS_uint64 offset;               /* offset of data in archive      */
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    PHYSFS_uint16 version;              /* version made by                */
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    PHYSFS_uint16 version_needed;       /* version needed to extract      */
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    PHYSFS_uint16 general_bits;         /* general purpose bits           */
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    PHYSFS_uint16 compression_method;   /* compression method             */
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    PHYSFS_uint32 crc;                  /* crc-32                         */
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    PHYSFS_uint64 compressed_size;      /* compressed size                */
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    PHYSFS_uint64 uncompressed_size;    /* uncompressed size              */
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    PHYSFS_sint64 last_mod_time;        /* last file mod time             */
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    PHYSFS_uint32 dos_mod_time;         /* original MS-DOS style mod time */
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    struct _ZIPentry *hashnext;         /* next item in this hash bucket  */
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    struct _ZIPentry *children;         /* linked list of kids, if dir    */
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    struct _ZIPentry *sibling;          /* next item in same dir          */
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} ZIPentry;
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/*
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 * One ZIPinfo is kept for each open ZIP archive.
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 */
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typedef struct
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{
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    PHYSFS_Io *io;            /* the i/o interface for this archive.    */
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    ZIPentry root;            /* root of directory tree.                */
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    ZIPentry **hash;          /* all entries hashed for fast lookup.    */
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    size_t hashBuckets;       /* number of buckets in hash.             */
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    int zip64;                /* non-zero if this is a Zip64 archive.   */
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    int has_crypto;           /* non-zero if any entry uses encryption. */
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} ZIPinfo;
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/*
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 * One ZIPfileinfo is kept for each open file in a ZIP archive.
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 */
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typedef struct
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{
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    ZIPentry *entry;                      /* Info on file.              */
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    PHYSFS_Io *io;                        /* physical file handle.      */
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    PHYSFS_uint32 compressed_position;    /* offset in compressed data. */
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    PHYSFS_uint32 uncompressed_position;  /* tell() position.           */
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    PHYSFS_uint8 *buffer;                 /* decompression buffer.      */
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    PHYSFS_uint32 crypto_keys[3];         /* for "traditional" crypto.  */
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    PHYSFS_uint32 initial_crypto_keys[3]; /* for "traditional" crypto.  */
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    z_stream stream;                      /* zlib stream state.         */
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} ZIPfileinfo;
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/* Magic numbers... */
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#define ZIP_LOCAL_FILE_SIG                          0x04034b50
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#define ZIP_CENTRAL_DIR_SIG                         0x02014b50
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#define ZIP_END_OF_CENTRAL_DIR_SIG                  0x06054b50
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#define ZIP64_END_OF_CENTRAL_DIR_SIG                0x06064b50
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#define ZIP64_END_OF_CENTRAL_DIRECTORY_LOCATOR_SIG  0x07064b50
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#define ZIP64_EXTENDED_INFO_EXTRA_FIELD_SIG         0x0001
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/* compression methods... */
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#define COMPMETH_NONE 0
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/* ...and others... */
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#define UNIX_FILETYPE_MASK    0170000
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#define UNIX_FILETYPE_SYMLINK 0120000
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#define ZIP_GENERAL_BITS_TRADITIONAL_CRYPTO   (1 << 0)
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#define ZIP_GENERAL_BITS_IGNORE_LOCAL_HEADER  (1 << 3)
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/* support for "traditional" PKWARE encryption. */
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static int zip_entry_is_tradional_crypto(const ZIPentry *entry)
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{
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    return (entry->general_bits & ZIP_GENERAL_BITS_TRADITIONAL_CRYPTO) != 0;
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} /* zip_entry_is_traditional_crypto */
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static int zip_entry_ignore_local_header(const ZIPentry *entry)
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{
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    return (entry->general_bits & ZIP_GENERAL_BITS_IGNORE_LOCAL_HEADER) != 0;
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} /* zip_entry_is_traditional_crypto */
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static PHYSFS_uint32 zip_crypto_crc32(const PHYSFS_uint32 crc, const PHYSFS_uint8 val)
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{
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   139
    int i;
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   140
    PHYSFS_uint32 xorval = (crc ^ ((PHYSFS_uint32) val)) & 0xFF;
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   141
    for (i = 0; i < 8; i++)
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   142
        xorval = ((xorval & 1) ? (0xEDB88320 ^ (xorval >> 1)) : (xorval >> 1));
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   143
    return xorval ^ (crc >> 8);
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   144
} /* zip_crc32 */
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   145
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   146
static void zip_update_crypto_keys(PHYSFS_uint32 *keys, const PHYSFS_uint8 val)
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{
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   148
    keys[0] = zip_crypto_crc32(keys[0], val);
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   149
    keys[1] = keys[1] + (keys[0] & 0x000000FF);
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   150
    keys[1] = (keys[1] * 134775813) + 1;
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   151
    keys[2] = zip_crypto_crc32(keys[2], (PHYSFS_uint8) ((keys[1] >> 24) & 0xFF));
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   152
} /* zip_update_crypto_keys */
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   153
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   154
static PHYSFS_uint8 zip_decrypt_byte(const PHYSFS_uint32 *keys)
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{
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   156
    const PHYSFS_uint16 tmp = keys[2] | 2;
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   157
    return (PHYSFS_uint8) ((tmp * (tmp ^ 1)) >> 8);
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   158
} /* zip_decrypt_byte */
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   159
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   160
static PHYSFS_sint64 zip_read_decrypt(ZIPfileinfo *finfo, void *buf, PHYSFS_uint64 len)
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{
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   162
    PHYSFS_Io *io = finfo->io;
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   163
    const PHYSFS_sint64 br = io->read(io, buf, len);
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   164
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   165
    /* Decompression the new data if necessary. */
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   166
    if (zip_entry_is_tradional_crypto(finfo->entry) && (br > 0))
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    {
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   168
        PHYSFS_uint32 *keys = finfo->crypto_keys;
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   169
        PHYSFS_uint8 *ptr = (PHYSFS_uint8 *) buf;
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        PHYSFS_sint64 i;
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   171
        for (i = 0; i < br; i++, ptr++)
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        {
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   173
            const PHYSFS_uint8 ch = *ptr ^ zip_decrypt_byte(keys);
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   174
            zip_update_crypto_keys(keys, ch);
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   175
            *ptr = ch;
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   176
        } /* for */
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   177
    } /* if  */
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   178
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   179
    return br;
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   180
} /* zip_read_decrypt */
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   181
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   182
static int zip_prep_crypto_keys(ZIPfileinfo *finfo, const PHYSFS_uint8 *crypto_header, const PHYSFS_uint8 *password)
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{
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   184
    /* It doesn't appear to be documented in PKWare's APPNOTE.TXT, but you
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   185
       need to use a different byte in the header to verify the password
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   186
       if general purpose bit 3 is set. Discovered this from Info-Zip.
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   187
       That's what the (verifier) value is doing, below. */
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   188
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   189
    PHYSFS_uint32 *keys = finfo->crypto_keys;
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   190
    const ZIPentry *entry = finfo->entry;
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   191
    const int usedate = zip_entry_ignore_local_header(entry);
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   192
    const PHYSFS_uint8 verifier = (PHYSFS_uint8) ((usedate ? (entry->dos_mod_time >> 8) : (entry->crc >> 24)) & 0xFF);
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   193
    PHYSFS_uint8 finalbyte = 0;
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   194
    int i = 0;
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   195
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   196
    /* initialize vector with defaults, then password, then header. */
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   197
    keys[0] = 305419896;
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   198
    keys[1] = 591751049;
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   199
    keys[2] = 878082192;
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   200
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   201
    while (*password)
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   202
        zip_update_crypto_keys(keys, *(password++));
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   203
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   204
    for (i = 0; i < 12; i++)
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   205
    {
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   206
        const PHYSFS_uint8 c = crypto_header[i] ^ zip_decrypt_byte(keys);
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   207
        zip_update_crypto_keys(keys, c);
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   208
        finalbyte = c;
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   209
    } /* for */
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    /* you have a 1/256 chance of passing this test incorrectly. :/ */
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    if (finalbyte != verifier)
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        BAIL_MACRO(PHYSFS_ERR_BAD_PASSWORD, 0);
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    /* save the initial vector for seeking purposes. Not secure!! */
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    memcpy(finfo->initial_crypto_keys, finfo->crypto_keys, 12);
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    return 1;
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} /* zip_prep_crypto_keys */
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/*
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 * Bridge physfs allocation functions to zlib's format...
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 */
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static voidpf zlibPhysfsAlloc(voidpf opaque, uInt items, uInt size)
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{
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    return ((PHYSFS_Allocator *) opaque)->Malloc(items * size);
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} /* zlibPhysfsAlloc */
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/*
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 * Bridge physfs allocation functions to zlib's format...
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 */
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static void zlibPhysfsFree(voidpf opaque, voidpf address)
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{
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    ((PHYSFS_Allocator *) opaque)->Free(address);
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} /* zlibPhysfsFree */
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/*
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 * Construct a new z_stream to a sane state.
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 */
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static void initializeZStream(z_stream *pstr)
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{
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   243
    memset(pstr, '\0', sizeof (z_stream));
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    pstr->zalloc = zlibPhysfsAlloc;
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   245
    pstr->zfree = zlibPhysfsFree;
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   246
    pstr->opaque = &allocator;
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   247
} /* initializeZStream */
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static PHYSFS_ErrorCode zlib_error_code(int rc)
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   251
{
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   252
    switch (rc)
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   253
    {
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   254
        case Z_OK: return PHYSFS_ERR_OK;  /* not an error. */
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   255
        case Z_STREAM_END: return PHYSFS_ERR_OK; /* not an error. */
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   256
        case Z_ERRNO: return PHYSFS_ERR_IO;
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   257
        case Z_MEM_ERROR: return PHYSFS_ERR_OUT_OF_MEMORY;
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   258
        default: return PHYSFS_ERR_CORRUPT;
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   259
    } /* switch */
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   260
} /* zlib_error_string */
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   262
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   263
/*
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   264
 * Wrap all zlib calls in this, so the physfs error state is set appropriately.
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   265
 */
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   266
static int zlib_err(const int rc)
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   267
{
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bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
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    PHYSFS_setErrorCode(zlib_error_code(rc));
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    return rc;
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} /* zlib_err */
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nemo
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/*
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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 * Hash a string for lookup an a ZIPinfo hashtable.
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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 */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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static inline PHYSFS_uint32 zip_hash_string(const ZIPinfo *info, const char *s)
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{
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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    return __PHYSFS_hashString(s, strlen(s)) % info->hashBuckets;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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} /* zip_hash_string */
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/*
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   281
 * Read an unsigned 64-bit int and swap to native byte order.
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   282
 */
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   283
static int readui64(PHYSFS_Io *io, PHYSFS_uint64 *val)
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   284
{
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   285
    PHYSFS_uint64 v;
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   286
    BAIL_IF_MACRO(!__PHYSFS_readAll(io, &v, sizeof (v)), ERRPASS, 0);
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   287
    *val = PHYSFS_swapULE64(v);
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   288
    return 1;
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   289
} /* readui64 */
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   290
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   291
/*
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   292
 * Read an unsigned 32-bit int and swap to native byte order.
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   293
 */
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   294
static int readui32(PHYSFS_Io *io, PHYSFS_uint32 *val)
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   295
{
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   296
    PHYSFS_uint32 v;
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   297
    BAIL_IF_MACRO(!__PHYSFS_readAll(io, &v, sizeof (v)), ERRPASS, 0);
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   298
    *val = PHYSFS_swapULE32(v);
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diff changeset
   299
    return 1;
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   300
} /* readui32 */
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   301
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diff changeset
   302
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   303
/*
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   304
 * Read an unsigned 16-bit int and swap to native byte order.
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   305
 */
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   306
static int readui16(PHYSFS_Io *io, PHYSFS_uint16 *val)
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   307
{
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   308
    PHYSFS_uint16 v;
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   309
    BAIL_IF_MACRO(!__PHYSFS_readAll(io, &v, sizeof (v)), ERRPASS, 0);
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   310
    *val = PHYSFS_swapULE16(v);
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diff changeset
   311
    return 1;
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diff changeset
   312
} /* readui16 */
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diff changeset
   313
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diff changeset
   314
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   315
static PHYSFS_sint64 ZIP_read(PHYSFS_Io *_io, void *buf, PHYSFS_uint64 len)
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diff changeset
   316
{
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   317
    ZIPfileinfo *finfo = (ZIPfileinfo *) _io->opaque;
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   318
    ZIPentry *entry = finfo->entry;
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diff changeset
   319
    PHYSFS_sint64 retval = 0;
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diff changeset
   320
    PHYSFS_sint64 maxread = (PHYSFS_sint64) len;
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parents:
diff changeset
   321
    PHYSFS_sint64 avail = entry->uncompressed_size -
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parents:
diff changeset
   322
                          finfo->uncompressed_position;
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diff changeset
   323
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parents:
diff changeset
   324
    if (avail < maxread)
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diff changeset
   325
        maxread = avail;
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diff changeset
   326
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   327
    BAIL_IF_MACRO(maxread == 0, ERRPASS, 0);    /* quick rejection. */
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diff changeset
   328
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   329
    if (entry->compression_method == COMPMETH_NONE)
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bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
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diff changeset
   330
        retval = zip_read_decrypt(finfo, buf, maxread);
7768
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parents:
diff changeset
   331
    else
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unc0rr
parents:
diff changeset
   332
    {
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unc0rr
parents:
diff changeset
   333
        finfo->stream.next_out = buf;
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parents:
diff changeset
   334
        finfo->stream.avail_out = (uInt) maxread;
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parents:
diff changeset
   335
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parents:
diff changeset
   336
        while (retval < maxread)
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unc0rr
parents:
diff changeset
   337
        {
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parents:
diff changeset
   338
            PHYSFS_uint32 before = finfo->stream.total_out;
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parents:
diff changeset
   339
            int rc;
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diff changeset
   340
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unc0rr
parents:
diff changeset
   341
            if (finfo->stream.avail_in == 0)
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unc0rr
parents:
diff changeset
   342
            {
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unc0rr
parents:
diff changeset
   343
                PHYSFS_sint64 br;
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diff changeset
   344
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unc0rr
parents:
diff changeset
   345
                br = entry->compressed_size - finfo->compressed_position;
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unc0rr
parents:
diff changeset
   346
                if (br > 0)
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unc0rr
parents:
diff changeset
   347
                {
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unc0rr
parents:
diff changeset
   348
                    if (br > ZIP_READBUFSIZE)
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unc0rr
parents:
diff changeset
   349
                        br = ZIP_READBUFSIZE;
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diff changeset
   350
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   351
                    br = zip_read_decrypt(finfo, finfo->buffer, (PHYSFS_uint64) br);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   352
                    if (br <= 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   353
                        break;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   354
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   355
                    finfo->compressed_position += (PHYSFS_uint32) br;
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unc0rr
parents:
diff changeset
   356
                    finfo->stream.next_in = finfo->buffer;
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unc0rr
parents:
diff changeset
   357
                    finfo->stream.avail_in = (PHYSFS_uint32) br;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   358
                } /* if */
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unc0rr
parents:
diff changeset
   359
            } /* if */
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unc0rr
parents:
diff changeset
   360
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   361
            rc = zlib_err(inflate(&finfo->stream, Z_SYNC_FLUSH));
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unc0rr
parents:
diff changeset
   362
            retval += (finfo->stream.total_out - before);
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unc0rr
parents:
diff changeset
   363
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   364
            if (rc != Z_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   365
                break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   366
        } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   367
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   368
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   369
    if (retval > 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   370
        finfo->uncompressed_position += (PHYSFS_uint32) retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   371
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   372
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   373
} /* ZIP_read */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   374
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   375
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   376
static PHYSFS_sint64 ZIP_write(PHYSFS_Io *io, const void *b, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   377
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   378
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   379
} /* ZIP_write */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   380
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   381
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   382
static PHYSFS_sint64 ZIP_tell(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   383
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   384
    return ((ZIPfileinfo *) io->opaque)->uncompressed_position;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   385
} /* ZIP_tell */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   386
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   387
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   388
static int ZIP_seek(PHYSFS_Io *_io, PHYSFS_uint64 offset)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   389
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   390
    ZIPfileinfo *finfo = (ZIPfileinfo *) _io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   391
    ZIPentry *entry = finfo->entry;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   392
    PHYSFS_Io *io = finfo->io;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   393
    const int encrypted = zip_entry_is_tradional_crypto(entry);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   394
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   395
    BAIL_IF_MACRO(offset > entry->uncompressed_size, PHYSFS_ERR_PAST_EOF, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   396
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   397
    if (!encrypted && (entry->compression_method == COMPMETH_NONE))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   398
    {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   399
        PHYSFS_sint64 newpos = offset + entry->offset;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   400
        BAIL_IF_MACRO(!io->seek(io, newpos), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   401
        finfo->uncompressed_position = (PHYSFS_uint32) offset;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   402
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   403
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   404
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   405
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   406
        /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   407
         * If seeking backwards, we need to redecode the file
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   408
         *  from the start and throw away the compressed bits until we hit
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   409
         *  the offset we need. If seeking forward, we still need to
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   410
         *  decode, but we don't rewind first.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   411
         */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   412
        if (offset < finfo->uncompressed_position)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   413
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   414
            /* we do a copy so state is sane if inflateInit2() fails. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   415
            z_stream str;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   416
            initializeZStream(&str);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   417
            if (zlib_err(inflateInit2(&str, -MAX_WBITS)) != Z_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   418
                return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   419
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   420
            if (!io->seek(io, entry->offset + (encrypted ? 12 : 0)))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   421
                return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   422
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   423
            inflateEnd(&finfo->stream);
12457
e18cfe90e4e2 fix physfs using inflateCopy() (not part of miniz)
sheepluva
parents: 12456
diff changeset
   424
            memcpy(&finfo->stream, &str, sizeof (z_stream));
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   425
            finfo->uncompressed_position = finfo->compressed_position = 0;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   426
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   427
            if (encrypted)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   428
                memcpy(finfo->crypto_keys, finfo->initial_crypto_keys, 12);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   429
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   430
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   431
        while (finfo->uncompressed_position != offset)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   432
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   433
            PHYSFS_uint8 buf[512];
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   434
            PHYSFS_uint32 maxread;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   435
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   436
            maxread = (PHYSFS_uint32) (offset - finfo->uncompressed_position);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   437
            if (maxread > sizeof (buf))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   438
                maxread = sizeof (buf);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   439
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   440
            if (ZIP_read(_io, buf, maxread) != maxread)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   441
                return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   442
        } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   443
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   444
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   445
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   446
} /* ZIP_seek */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   447
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   448
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   449
static PHYSFS_sint64 ZIP_length(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   450
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   451
    const ZIPfileinfo *finfo = (ZIPfileinfo *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   452
    return (PHYSFS_sint64) finfo->entry->uncompressed_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   453
} /* ZIP_length */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   454
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   455
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   456
static PHYSFS_Io *zip_get_io(PHYSFS_Io *io, ZIPinfo *inf, ZIPentry *entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   457
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   458
static PHYSFS_Io *ZIP_duplicate(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   459
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   460
    ZIPfileinfo *origfinfo = (ZIPfileinfo *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   461
    PHYSFS_Io *retval = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   462
    ZIPfileinfo *finfo = (ZIPfileinfo *) allocator.Malloc(sizeof (ZIPfileinfo));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   463
    GOTO_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   464
    GOTO_IF_MACRO(!finfo, PHYSFS_ERR_OUT_OF_MEMORY, failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   465
    memset(finfo, '\0', sizeof (*finfo));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   466
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   467
    finfo->entry = origfinfo->entry;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   468
    finfo->io = zip_get_io(origfinfo->io, NULL, finfo->entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   469
    GOTO_IF_MACRO(!finfo->io, ERRPASS, failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   470
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   471
    if (finfo->entry->compression_method != COMPMETH_NONE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   472
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   473
        finfo->buffer = (PHYSFS_uint8 *) allocator.Malloc(ZIP_READBUFSIZE);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   474
        GOTO_IF_MACRO(!finfo->buffer, PHYSFS_ERR_OUT_OF_MEMORY, failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   475
        if (zlib_err(inflateInit2(&finfo->stream, -MAX_WBITS)) != Z_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   476
            goto failed;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   477
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   478
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   479
    memcpy(retval, io, sizeof (PHYSFS_Io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   480
    retval->opaque = finfo;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   481
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   482
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   483
failed:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   484
    if (finfo != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   485
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   486
        if (finfo->io != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   487
            finfo->io->destroy(finfo->io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   488
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   489
        if (finfo->buffer != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   490
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   491
            allocator.Free(finfo->buffer);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   492
            inflateEnd(&finfo->stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   493
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   494
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   495
        allocator.Free(finfo);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   496
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   497
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   498
    if (retval != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   499
        allocator.Free(retval);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   500
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   501
    return NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   502
} /* ZIP_duplicate */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   503
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   504
static int ZIP_flush(PHYSFS_Io *io) { return 1;  /* no write support. */ }
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   505
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   506
static void ZIP_destroy(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   507
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   508
    ZIPfileinfo *finfo = (ZIPfileinfo *) io->opaque;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   509
    finfo->io->destroy(finfo->io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   510
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   511
    if (finfo->entry->compression_method != COMPMETH_NONE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   512
        inflateEnd(&finfo->stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   513
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   514
    if (finfo->buffer != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   515
        allocator.Free(finfo->buffer);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   516
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   517
    allocator.Free(finfo);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   518
    allocator.Free(io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   519
} /* ZIP_destroy */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   520
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   521
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   522
static const PHYSFS_Io ZIP_Io =
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   523
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   524
    CURRENT_PHYSFS_IO_API_VERSION, NULL,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   525
    ZIP_read,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   526
    ZIP_write,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   527
    ZIP_seek,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   528
    ZIP_tell,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   529
    ZIP_length,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   530
    ZIP_duplicate,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   531
    ZIP_flush,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   532
    ZIP_destroy
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   533
};
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   534
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   535
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   536
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   537
static PHYSFS_sint64 zip_find_end_of_central_dir(PHYSFS_Io *io, PHYSFS_sint64 *len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   538
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   539
    PHYSFS_uint8 buf[256];
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   540
    PHYSFS_uint8 extra[4] = { 0, 0, 0, 0 };
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   541
    PHYSFS_sint32 i = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   542
    PHYSFS_sint64 filelen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   543
    PHYSFS_sint64 filepos;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   544
    PHYSFS_sint32 maxread;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   545
    PHYSFS_sint32 totalread = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   546
    int found = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   547
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   548
    filelen = io->length(io);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   549
    BAIL_IF_MACRO(filelen == -1, ERRPASS, -1);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   550
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   551
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   552
     * Jump to the end of the file and start reading backwards.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   553
     *  The last thing in the file is the zipfile comment, which is variable
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   554
     *  length, and the field that specifies its size is before it in the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   555
     *  file (argh!)...this means that we need to scan backwards until we
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   556
     *  hit the end-of-central-dir signature. We can then sanity check that
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   557
     *  the comment was as big as it should be to make sure we're in the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   558
     *  right place. The comment length field is 16 bits, so we can stop
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   559
     *  searching for that signature after a little more than 64k at most,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   560
     *  and call it a corrupted zipfile.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   561
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   562
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   563
    if (sizeof (buf) < filelen)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   564
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   565
        filepos = filelen - sizeof (buf);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   566
        maxread = sizeof (buf);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   567
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   568
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   569
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   570
        filepos = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   571
        maxread = (PHYSFS_uint32) filelen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   572
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   573
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   574
    while ((totalread < filelen) && (totalread < 65557))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   575
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   576
        BAIL_IF_MACRO(!io->seek(io, filepos), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   577
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   578
        /* make sure we catch a signature between buffers. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   579
        if (totalread != 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   580
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   581
            if (!__PHYSFS_readAll(io, buf, maxread - 4))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   582
                return -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   583
            memcpy(&buf[maxread - 4], &extra, sizeof (extra));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   584
            totalread += maxread - 4;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   585
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   586
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   587
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   588
            if (!__PHYSFS_readAll(io, buf, maxread))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   589
                return -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   590
            totalread += maxread;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   591
        } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   592
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   593
        memcpy(&extra, buf, sizeof (extra));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   594
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   595
        for (i = maxread - 4; i > 0; i--)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   596
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   597
            if ((buf[i + 0] == 0x50) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   598
                (buf[i + 1] == 0x4B) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   599
                (buf[i + 2] == 0x05) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   600
                (buf[i + 3] == 0x06) )
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   601
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   602
                found = 1;  /* that's the signature! */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   603
                break;  
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   604
            } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   605
        } /* for */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   606
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   607
        if (found)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   608
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   609
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   610
        filepos -= (maxread - 4);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   611
        if (filepos < 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   612
            filepos = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   613
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   614
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   615
    BAIL_IF_MACRO(!found, PHYSFS_ERR_UNSUPPORTED, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   616
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   617
    if (len != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   618
        *len = filelen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   619
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   620
    return (filepos + i);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   621
} /* zip_find_end_of_central_dir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   622
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   623
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   624
static int isZip(PHYSFS_Io *io)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   625
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   626
    PHYSFS_uint32 sig = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   627
    int retval = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   628
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   629
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   630
     * The first thing in a zip file might be the signature of the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   631
     *  first local file record, so it makes for a quick determination.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   632
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   633
    if (readui32(io, &sig))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   634
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   635
        retval = (sig == ZIP_LOCAL_FILE_SIG);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   636
        if (!retval)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   637
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   638
            /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   639
             * No sig...might be a ZIP with data at the start
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   640
             *  (a self-extracting executable, etc), so we'll have to do
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   641
             *  it the hard way...
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   642
             */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   643
            retval = (zip_find_end_of_central_dir(io, NULL) != -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   644
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   645
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   646
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   647
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   648
} /* isZip */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   649
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   650
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   651
/* Find the ZIPentry for a path in platform-independent notation. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   652
static ZIPentry *zip_find_entry(ZIPinfo *info, const char *path)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   653
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   654
    PHYSFS_uint32 hashval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   655
    ZIPentry *prev = NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   656
    ZIPentry *retval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   657
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   658
    if (*path == '\0')
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   659
        return &info->root;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   660
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   661
    hashval = zip_hash_string(info, path);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   662
    for (retval = info->hash[hashval]; retval; retval = retval->hashnext)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   663
    {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   664
        if (strcmp(retval->name, path) == 0)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   665
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   666
            if (prev != NULL)  /* move this to the front of the list */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   667
            {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   668
                prev->hashnext = retval->hashnext;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   669
                retval->hashnext = info->hash[hashval];
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   670
                info->hash[hashval] = retval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   671
            } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   672
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   673
            return retval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   674
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   675
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   676
        prev = retval;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   677
    } /* for */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   678
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   679
    BAIL_MACRO(PHYSFS_ERR_NOT_FOUND, NULL);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   680
} /* zip_find_entry */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   681
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   682
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   683
/* Convert paths from old, buggy DOS zippers... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   684
static void zip_convert_dos_path(ZIPentry *entry, char *path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   685
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   686
    PHYSFS_uint8 hosttype = (PHYSFS_uint8) ((entry->version >> 8) & 0xFF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   687
    if (hosttype == 0)  /* FS_FAT_ */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   688
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   689
        while (*path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   690
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   691
            if (*path == '\\')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   692
                *path = '/';
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   693
            path++;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   694
        } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   695
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   696
} /* zip_convert_dos_path */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   697
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   698
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   699
static void zip_expand_symlink_path(char *path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   700
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   701
    char *ptr = path;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   702
    char *prevptr = path;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   703
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   704
    while (1)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   705
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   706
        ptr = strchr(ptr, '/');
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   707
        if (ptr == NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   708
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   709
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   710
        if (*(ptr + 1) == '.')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   711
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   712
            if (*(ptr + 2) == '/')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   713
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   714
                /* current dir in middle of string: ditch it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   715
                memmove(ptr, ptr + 2, strlen(ptr + 2) + 1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   716
            } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   717
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   718
            else if (*(ptr + 2) == '\0')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   719
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   720
                /* current dir at end of string: ditch it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   721
                *ptr = '\0';
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   722
            } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   723
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   724
            else if (*(ptr + 2) == '.')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   725
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   726
                if (*(ptr + 3) == '/')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   727
                {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   728
                    /* parent dir in middle: move back one, if possible. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   729
                    memmove(prevptr, ptr + 4, strlen(ptr + 4) + 1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   730
                    ptr = prevptr;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   731
                    while (prevptr != path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   732
                    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   733
                        prevptr--;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   734
                        if (*prevptr == '/')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   735
                        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   736
                            prevptr++;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   737
                            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   738
                        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   739
                    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   740
                } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   741
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   742
                if (*(ptr + 3) == '\0')
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   743
                {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   744
                    /* parent dir at end: move back one, if possible. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   745
                    *prevptr = '\0';
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   746
                } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   747
            } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   748
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   749
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   750
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   751
            prevptr = ptr;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   752
            ptr++;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   753
        } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   754
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   755
} /* zip_expand_symlink_path */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   756
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   757
/* (forward reference: zip_follow_symlink and zip_resolve call each other.) */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   758
static int zip_resolve(PHYSFS_Io *io, ZIPinfo *info, ZIPentry *entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   759
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   760
/*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   761
 * Look for the entry named by (path). If it exists, resolve it, and return
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   762
 *  a pointer to that entry. If it's another symlink, keep resolving until you
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   763
 *  hit a real file and then return a pointer to the final non-symlink entry.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   764
 *  If there's a problem, return NULL.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   765
 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   766
static ZIPentry *zip_follow_symlink(PHYSFS_Io *io, ZIPinfo *info, char *path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   767
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   768
    ZIPentry *entry;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   769
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   770
    zip_expand_symlink_path(path);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   771
    entry = zip_find_entry(info, path);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   772
    if (entry != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   773
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   774
        if (!zip_resolve(io, info, entry))  /* recursive! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   775
            entry = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   776
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   777
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   778
            if (entry->symlink != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   779
                entry = entry->symlink;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   780
        } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   781
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   782
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   783
    return entry;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   784
} /* zip_follow_symlink */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   785
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   786
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   787
static int zip_resolve_symlink(PHYSFS_Io *io, ZIPinfo *info, ZIPentry *entry)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   788
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   789
    const PHYSFS_uint64 size = entry->uncompressed_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   790
    char *path = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   791
    int rc = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   792
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   793
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   794
     * We've already parsed the local file header of the symlink at this
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   795
     *  point. Now we need to read the actual link from the file data and
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   796
     *  follow it.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   797
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   798
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   799
    BAIL_IF_MACRO(!io->seek(io, entry->offset), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   800
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   801
    path = (char *) __PHYSFS_smallAlloc(size + 1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   802
    BAIL_IF_MACRO(!path, PHYSFS_ERR_OUT_OF_MEMORY, 0);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   803
    
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   804
    if (entry->compression_method == COMPMETH_NONE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   805
        rc = __PHYSFS_readAll(io, path, size);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   806
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   807
    else  /* symlink target path is compressed... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   808
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   809
        z_stream stream;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   810
        const PHYSFS_uint64 complen = entry->compressed_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   811
        PHYSFS_uint8 *compressed = (PHYSFS_uint8*) __PHYSFS_smallAlloc(complen);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   812
        if (compressed != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   813
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   814
            if (__PHYSFS_readAll(io, compressed, complen))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   815
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   816
                initializeZStream(&stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   817
                stream.next_in = compressed;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   818
                stream.avail_in = complen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   819
                stream.next_out = (unsigned char *) path;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   820
                stream.avail_out = size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   821
                if (zlib_err(inflateInit2(&stream, -MAX_WBITS)) == Z_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   822
                {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   823
                    rc = zlib_err(inflate(&stream, Z_FINISH));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   824
                    inflateEnd(&stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   825
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   826
                    /* both are acceptable outcomes... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   827
                    rc = ((rc == Z_OK) || (rc == Z_STREAM_END));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   828
                } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   829
            } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   830
            __PHYSFS_smallFree(compressed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   831
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   832
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   833
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   834
    if (rc)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   835
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   836
        path[entry->uncompressed_size] = '\0';    /* null-terminate it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   837
        zip_convert_dos_path(entry, path);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   838
        entry->symlink = zip_follow_symlink(io, info, path);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   839
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   840
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   841
    __PHYSFS_smallFree(path);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   842
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   843
    return (entry->symlink != NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   844
} /* zip_resolve_symlink */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   845
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   846
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   847
/*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   848
 * Parse the local file header of an entry, and update entry->offset.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   849
 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   850
static int zip_parse_local(PHYSFS_Io *io, ZIPentry *entry)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   851
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   852
    PHYSFS_uint32 ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   853
    PHYSFS_uint16 ui16;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   854
    PHYSFS_uint16 fnamelen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   855
    PHYSFS_uint16 extralen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   856
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   857
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   858
     * crc and (un)compressed_size are always zero if this is a "JAR"
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   859
     *  archive created with Sun's Java tools, apparently. We only
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   860
     *  consider this archive corrupted if those entries don't match and
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   861
     *  aren't zero. That seems to work well.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   862
     * We also ignore a mismatch if the value is 0xFFFFFFFF here, since it's
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   863
     *  possible that's a Zip64 thing.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   864
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   865
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   866
    /* !!! FIXME: apparently these are zero if general purpose bit 3 is set,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   867
       !!! FIXME:  which is probably true for Jar files, fwiw, but we don't
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   868
       !!! FIXME:  care about these values anyhow. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   869
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   870
    BAIL_IF_MACRO(!io->seek(io, entry->offset), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   871
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   872
    BAIL_IF_MACRO(ui32 != ZIP_LOCAL_FILE_SIG, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   873
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   874
    BAIL_IF_MACRO(ui16 != entry->version_needed, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   875
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);  /* general bits. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   876
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   877
    BAIL_IF_MACRO(ui16 != entry->compression_method, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   878
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);  /* date/time */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   879
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   880
    BAIL_IF_MACRO(ui32 && (ui32 != entry->crc), PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   881
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   882
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   883
    BAIL_IF_MACRO(ui32 && (ui32 != 0xFFFFFFFF) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   884
                  (ui32 != entry->compressed_size), PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   885
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   886
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   887
    BAIL_IF_MACRO(ui32 && (ui32 != 0xFFFFFFFF) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   888
                 (ui32 != entry->uncompressed_size), PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   889
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   890
    BAIL_IF_MACRO(!readui16(io, &fnamelen), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   891
    BAIL_IF_MACRO(!readui16(io, &extralen), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   892
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   893
    entry->offset += fnamelen + extralen + 30;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   894
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   895
} /* zip_parse_local */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   896
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   897
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   898
static int zip_resolve(PHYSFS_Io *io, ZIPinfo *info, ZIPentry *entry)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   899
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   900
    int retval = 1;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   901
    const ZipResolveType resolve_type = entry->resolved;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   902
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   903
    if (resolve_type == ZIP_DIRECTORY)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   904
        return 1;   /* we're good. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   905
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   906
    /* Don't bother if we've failed to resolve this entry before. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   907
    BAIL_IF_MACRO(resolve_type == ZIP_BROKEN_FILE, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   908
    BAIL_IF_MACRO(resolve_type == ZIP_BROKEN_SYMLINK, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   909
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   910
    /* uhoh...infinite symlink loop! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   911
    BAIL_IF_MACRO(resolve_type == ZIP_RESOLVING, PHYSFS_ERR_SYMLINK_LOOP, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   912
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   913
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   914
     * We fix up the offset to point to the actual data on the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   915
     *  first open, since we don't want to seek across the whole file on
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   916
     *  archive open (can be SLOW on large, CD-stored files), but we
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   917
     *  need to check the local file header...not just for corruption,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   918
     *  but since it stores offset info the central directory does not.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   919
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   920
    if (resolve_type != ZIP_RESOLVED)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   921
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   922
        entry->resolved = ZIP_RESOLVING;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   923
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   924
        retval = zip_parse_local(io, entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   925
        if (retval)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   926
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   927
            /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   928
             * If it's a symlink, find the original file. This will cause
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   929
             *  resolution of other entries (other symlinks and, eventually,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   930
             *  the real file) if all goes well.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   931
             */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   932
            if (resolve_type == ZIP_UNRESOLVED_SYMLINK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   933
                retval = zip_resolve_symlink(io, info, entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   934
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   935
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   936
        if (resolve_type == ZIP_UNRESOLVED_SYMLINK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   937
            entry->resolved = ((retval) ? ZIP_RESOLVED : ZIP_BROKEN_SYMLINK);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   938
        else if (resolve_type == ZIP_UNRESOLVED_FILE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   939
            entry->resolved = ((retval) ? ZIP_RESOLVED : ZIP_BROKEN_FILE);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   940
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   941
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   942
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   943
} /* zip_resolve */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   944
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   945
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   946
static int zip_hash_entry(ZIPinfo *info, ZIPentry *entry);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   947
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   948
/* Fill in missing parent directories. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   949
static ZIPentry *zip_hash_ancestors(ZIPinfo *info, char *name)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   950
{
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   951
    ZIPentry *retval = &info->root;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   952
    char *sep = strrchr(name, '/');
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   953
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   954
    if (sep)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   955
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   956
        const size_t namelen = (sep - name) + 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   957
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   958
        *sep = '\0';  /* chop off last piece. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   959
        retval = zip_find_entry(info, name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   960
        *sep = '/';
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   961
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   962
        if (retval != NULL)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   963
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   964
            if (retval->resolved != ZIP_DIRECTORY)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   965
                BAIL_MACRO(PHYSFS_ERR_CORRUPT, NULL);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   966
            return retval;  /* already hashed. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   967
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   968
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   969
        /* okay, this is a new dir. Build and hash us. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   970
        retval = (ZIPentry *) allocator.Malloc(sizeof (ZIPentry) + namelen);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   971
        BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   972
        memset(retval, '\0', sizeof (*retval));
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   973
        retval->name = ((char *) retval) + sizeof (ZIPentry);
12456
30da743f118b PHYSFS: fix off-by-one error
sheepluva
parents: 12218
diff changeset
   974
        memcpy(retval->name, name, namelen - 1);
30da743f118b PHYSFS: fix off-by-one error
sheepluva
parents: 12218
diff changeset
   975
        retval->name[namelen - 1] = '\0';
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   976
        retval->resolved = ZIP_DIRECTORY;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   977
        if (!zip_hash_entry(info, retval))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   978
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   979
            allocator.Free(retval);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   980
            return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   981
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   982
    } /* else */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   983
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   984
    return retval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   985
} /* zip_hash_ancestors */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   986
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   987
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   988
static int zip_hash_entry(ZIPinfo *info, ZIPentry *entry)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   989
{
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   990
    PHYSFS_uint32 hashval;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   991
    ZIPentry *parent;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   992
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   993
    assert(!zip_find_entry(info, entry->name));  /* checked elsewhere */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   994
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   995
    parent = zip_hash_ancestors(info, entry->name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   996
    if (!parent)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   997
        return 0;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   998
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
   999
    hashval = zip_hash_string(info, entry->name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1000
    entry->hashnext = info->hash[hashval];
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1001
    info->hash[hashval] = entry;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1002
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1003
    entry->sibling = parent->children;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1004
    parent->children = entry;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1005
    return 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1006
} /* zip_hash_entry */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1007
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1008
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1009
static int zip_entry_is_symlink(const ZIPentry *entry)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1010
{
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1011
    return ((entry->resolved == ZIP_UNRESOLVED_SYMLINK) ||
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1012
            (entry->resolved == ZIP_BROKEN_SYMLINK) ||
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1013
            (entry->symlink));
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1014
} /* zip_entry_is_symlink */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1015
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1016
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1017
static int zip_version_does_symlinks(PHYSFS_uint32 version)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1018
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1019
    int retval = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1020
    PHYSFS_uint8 hosttype = (PHYSFS_uint8) ((version >> 8) & 0xFF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1021
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1022
    switch (hosttype)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1023
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1024
            /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1025
             * These are the platforms that can NOT build an archive with
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1026
             *  symlinks, according to the Info-ZIP project.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1027
             */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1028
        case 0:  /* FS_FAT_  */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1029
        case 1:  /* AMIGA_   */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1030
        case 2:  /* VMS_     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1031
        case 4:  /* VM_CSM_  */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1032
        case 6:  /* FS_HPFS_ */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1033
        case 11: /* FS_NTFS_ */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1034
        case 14: /* FS_VFAT_ */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1035
        case 13: /* ACORN_   */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1036
        case 15: /* MVS_     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1037
        case 18: /* THEOS_   */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1038
            break;  /* do nothing. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1039
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1040
        default:  /* assume the rest to be unix-like. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1041
            retval = 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1042
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1043
    } /* switch */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1044
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1045
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1046
} /* zip_version_does_symlinks */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1047
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1048
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1049
static int zip_has_symlink_attr(ZIPentry *entry, PHYSFS_uint32 extern_attr)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1050
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1051
    PHYSFS_uint16 xattr = ((extern_attr >> 16) & 0xFFFF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1052
    return ( (zip_version_does_symlinks(entry->version)) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1053
             (entry->uncompressed_size > 0) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1054
             ((xattr & UNIX_FILETYPE_MASK) == UNIX_FILETYPE_SYMLINK) );
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1055
} /* zip_has_symlink_attr */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1056
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1057
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1058
static PHYSFS_sint64 zip_dos_time_to_physfs_time(PHYSFS_uint32 dostime)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1059
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1060
    PHYSFS_uint32 dosdate;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1061
    struct tm unixtime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1062
    memset(&unixtime, '\0', sizeof (unixtime));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1063
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1064
    dosdate = (PHYSFS_uint32) ((dostime >> 16) & 0xFFFF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1065
    dostime &= 0xFFFF;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1066
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1067
    /* dissect date */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1068
    unixtime.tm_year = ((dosdate >> 9) & 0x7F) + 80;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1069
    unixtime.tm_mon  = ((dosdate >> 5) & 0x0F) - 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1070
    unixtime.tm_mday = ((dosdate     ) & 0x1F);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1071
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1072
    /* dissect time */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1073
    unixtime.tm_hour = ((dostime >> 11) & 0x1F);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1074
    unixtime.tm_min  = ((dostime >>  5) & 0x3F);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1075
    unixtime.tm_sec  = ((dostime <<  1) & 0x3E);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1076
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1077
    /* let mktime calculate daylight savings time. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1078
    unixtime.tm_isdst = -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1079
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1080
    return ((PHYSFS_sint64) mktime(&unixtime));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1081
} /* zip_dos_time_to_physfs_time */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1082
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1083
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1084
static ZIPentry *zip_load_entry(PHYSFS_Io *io, const int zip64,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1085
                                const PHYSFS_uint64 ofs_fixup)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1086
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1087
    ZIPentry entry;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1088
    ZIPentry *retval = NULL;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1089
    PHYSFS_uint16 fnamelen, extralen, commentlen;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1090
    PHYSFS_uint32 external_attr;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1091
    PHYSFS_uint32 starting_disk;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1092
    PHYSFS_uint64 offset;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1093
    PHYSFS_uint16 ui16;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1094
    PHYSFS_uint32 ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1095
    PHYSFS_sint64 si64;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1096
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1097
    memset(&entry, '\0', sizeof (entry));
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1098
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1099
    /* sanity check with central directory signature... */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1100
    if (!readui32(io, &ui32)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1101
    BAIL_IF_MACRO(ui32 != ZIP_CENTRAL_DIR_SIG, PHYSFS_ERR_CORRUPT, NULL);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1102
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1103
    /* Get the pertinent parts of the record... */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1104
    if (!readui16(io, &entry.version)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1105
    if (!readui16(io, &entry.version_needed)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1106
    if (!readui16(io, &entry.general_bits)) return NULL;  /* general bits */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1107
    if (!readui16(io, &entry.compression_method)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1108
    if (!readui32(io, &entry.dos_mod_time)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1109
    entry.last_mod_time = zip_dos_time_to_physfs_time(entry.dos_mod_time);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1110
    if (!readui32(io, &entry.crc)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1111
    if (!readui32(io, &ui32)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1112
    entry.compressed_size = (PHYSFS_uint64) ui32;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1113
    if (!readui32(io, &ui32)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1114
    entry.uncompressed_size = (PHYSFS_uint64) ui32;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1115
    if (!readui16(io, &fnamelen)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1116
    if (!readui16(io, &extralen)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1117
    if (!readui16(io, &commentlen)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1118
    if (!readui16(io, &ui16)) return NULL;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1119
    starting_disk = (PHYSFS_uint32) ui16;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1120
    if (!readui16(io, &ui16)) return NULL;  /* internal file attribs */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1121
    if (!readui32(io, &external_attr)) return NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1122
    if (!readui32(io, &ui32)) return NULL;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1123
    offset = (PHYSFS_uint64) ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1124
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1125
    retval = (ZIPentry *) allocator.Malloc(sizeof (ZIPentry) + fnamelen + 1);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1126
    BAIL_IF_MACRO(retval == NULL, PHYSFS_ERR_OUT_OF_MEMORY, 0);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1127
    memcpy(retval, &entry, sizeof (*retval));
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1128
    retval->name = ((char *) retval) + sizeof (ZIPentry);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1129
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1130
    if (!__PHYSFS_readAll(io, retval->name, fnamelen))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1131
        goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1132
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1133
    retval->name[fnamelen] = '\0';  /* null-terminate the filename. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1134
    zip_convert_dos_path(retval, retval->name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1135
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1136
    retval->symlink = NULL;  /* will be resolved later, if necessary. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1137
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1138
    if (retval->name[fnamelen - 1] == '/')
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1139
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1140
        retval->name[fnamelen - 1] = '\0';
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1141
        retval->resolved = ZIP_DIRECTORY;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1142
    } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1143
    else
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1144
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1145
        retval->resolved = (zip_has_symlink_attr(&entry, external_attr)) ?
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1146
                                ZIP_UNRESOLVED_SYMLINK : ZIP_UNRESOLVED_FILE;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1147
    } /* else */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1148
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1149
    si64 = io->tell(io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1150
    if (si64 == -1)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1151
        goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1152
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1153
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1154
     * The actual sizes didn't fit in 32-bits; look for the Zip64
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1155
     *  extended information extra field...
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1156
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1157
    if ( (zip64) &&
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1158
         ((offset == 0xFFFFFFFF) ||
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1159
          (starting_disk == 0xFFFFFFFF) ||
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1160
          (retval->compressed_size == 0xFFFFFFFF) ||
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1161
          (retval->uncompressed_size == 0xFFFFFFFF)) )
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1162
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1163
        int found = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1164
        PHYSFS_uint16 sig, len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1165
        while (extralen > 4)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1166
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1167
            if (!readui16(io, &sig))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1168
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1169
            else if (!readui16(io, &len))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1170
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1171
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1172
            si64 += 4 + len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1173
            extralen -= 4 + len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1174
            if (sig != ZIP64_EXTENDED_INFO_EXTRA_FIELD_SIG)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1175
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1176
                if (!io->seek(io, si64))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1177
                    goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1178
                continue;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1179
            } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1180
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1181
            found = 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1182
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1183
        } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1184
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1185
        GOTO_IF_MACRO(!found, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1186
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1187
        if (retval->uncompressed_size == 0xFFFFFFFF)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1188
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1189
            GOTO_IF_MACRO(len < 8, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1190
            if (!readui64(io, &retval->uncompressed_size))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1191
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1192
            len -= 8;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1193
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1194
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1195
        if (retval->compressed_size == 0xFFFFFFFF)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1196
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1197
            GOTO_IF_MACRO(len < 8, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1198
            if (!readui64(io, &retval->compressed_size))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1199
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1200
            len -= 8;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1201
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1202
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1203
        if (offset == 0xFFFFFFFF)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1204
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1205
            GOTO_IF_MACRO(len < 8, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1206
            if (!readui64(io, &offset))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1207
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1208
            len -= 8;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1209
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1210
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1211
        if (starting_disk == 0xFFFFFFFF)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1212
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1213
            GOTO_IF_MACRO(len < 8, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1214
            if (!readui32(io, &starting_disk))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1215
                goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1216
            len -= 4;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1217
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1218
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1219
        GOTO_IF_MACRO(len != 0, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1220
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1221
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1222
    GOTO_IF_MACRO(starting_disk != 0, PHYSFS_ERR_CORRUPT, zip_load_entry_puked);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1223
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1224
    retval->offset = offset + ofs_fixup;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1225
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1226
    /* seek to the start of the next entry in the central directory... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1227
    if (!io->seek(io, si64 + extralen + commentlen))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1228
        goto zip_load_entry_puked;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1229
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1230
    return retval;  /* success. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1231
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1232
zip_load_entry_puked:
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1233
    allocator.Free(retval);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1234
    return NULL;  /* failure. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1235
} /* zip_load_entry */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1236
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1237
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1238
/* This leaves things allocated on error; the caller will clean up the mess. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1239
static int zip_load_entries(ZIPinfo *info,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1240
                            const PHYSFS_uint64 data_ofs,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1241
                            const PHYSFS_uint64 central_ofs,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1242
                            const PHYSFS_uint64 entry_count)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1243
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1244
    PHYSFS_Io *io = info->io;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1245
    const int zip64 = info->zip64;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1246
    PHYSFS_uint64 i;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1247
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1248
    if (!io->seek(io, central_ofs))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1249
        return 0;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1250
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1251
    for (i = 0; i < entry_count; i++)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1252
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1253
        ZIPentry *entry = zip_load_entry(io, zip64, data_ofs);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1254
        ZIPentry *find;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1255
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1256
        if (!entry)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1257
            return 0;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1258
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1259
        find = zip_find_entry(info, entry->name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1260
        if (find != NULL)  /* duplicate? */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1261
        {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1262
            if (find->last_mod_time != 0)  /* duplicate? */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1263
            {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1264
                allocator.Free(entry);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1265
                BAIL_MACRO(PHYSFS_ERR_CORRUPT, 0);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1266
            } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1267
            else  /* we filled this in as a placeholder. Update it. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1268
            {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1269
                find->offset = entry->offset;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1270
                find->version = entry->version;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1271
                find->version_needed = entry->version_needed;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1272
                find->compression_method = entry->compression_method;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1273
                find->crc = entry->crc;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1274
                find->compressed_size = entry->compressed_size;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1275
                find->uncompressed_size = entry->uncompressed_size;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1276
                find->last_mod_time = entry->last_mod_time;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1277
                allocator.Free(entry);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1278
                continue;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1279
            } /* else */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1280
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1281
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1282
        if (!zip_hash_entry(info, entry))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1283
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1284
            allocator.Free(entry);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1285
            return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1286
        } /* if */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1287
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1288
        if (zip_entry_is_tradional_crypto(entry))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1289
            info->has_crypto = 1;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1290
    } /* for */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1291
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1292
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1293
} /* zip_load_entries */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1294
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1295
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1296
static PHYSFS_sint64 zip64_find_end_of_central_dir(PHYSFS_Io *io,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1297
                                                   PHYSFS_sint64 _pos,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1298
                                                   PHYSFS_uint64 offset)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1299
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1300
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1301
     * Naturally, the offset is useless to us; it is the offset from the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1302
     *  start of file, which is meaningless if we've appended this .zip to
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1303
     *  a self-extracting .exe. We need to find this on our own. It should
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1304
     *  be directly before the locator record, but the record in question,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1305
     *  like the original end-of-central-directory record, ends with a
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1306
     *  variable-length field. Unlike the original, which has to store the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1307
     *  size of that variable-length field in a 16-bit int and thus has to be
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1308
     *  within 64k, the new one gets 64-bits.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1309
     *
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1310
     * Fortunately, the only currently-specified record for that variable
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1311
     *  length block is some weird proprietary thing that deals with EBCDIC
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1312
     *  and tape backups or something. So we don't seek far.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1313
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1314
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1315
    PHYSFS_uint32 ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1316
    const PHYSFS_uint64 pos = (PHYSFS_uint64) _pos;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1317
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1318
    assert(_pos > 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1319
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1320
    /* Try offset specified in the Zip64 end of central directory locator. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1321
    /* This works if the entire PHYSFS_Io is the zip file. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1322
    BAIL_IF_MACRO(!io->seek(io, offset), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1323
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1324
    if (ui32 == ZIP64_END_OF_CENTRAL_DIR_SIG)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1325
        return offset;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1326
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1327
    /* Try 56 bytes before the Zip64 end of central directory locator. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1328
    /* This works if the record isn't variable length and is version 1. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1329
    if (pos > 56)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1330
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1331
        BAIL_IF_MACRO(!io->seek(io, pos-56), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1332
        BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1333
        if (ui32 == ZIP64_END_OF_CENTRAL_DIR_SIG)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1334
            return pos-56;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1335
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1336
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1337
    /* Try 84 bytes before the Zip64 end of central directory locator. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1338
    /* This works if the record isn't variable length and is version 2. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1339
    if (pos > 84)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1340
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1341
        BAIL_IF_MACRO(!io->seek(io, pos-84), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1342
        BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1343
        if (ui32 == ZIP64_END_OF_CENTRAL_DIR_SIG)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1344
            return pos-84;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1345
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1346
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1347
    /* Ok, brute force: we know it's between (offset) and (pos) somewhere. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1348
    /*  Just try moving back at most 256k. Oh well. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1349
    if ((offset < pos) && (pos > 4))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1350
    {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1351
        const PHYSFS_uint64 maxbuflen = 256 * 1024;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1352
        PHYSFS_uint64 len = pos - offset;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1353
        PHYSFS_uint8 *buf = NULL;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1354
        PHYSFS_sint32 i;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1355
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1356
        if (len > maxbuflen)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1357
            len = maxbuflen;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1358
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1359
        buf = (PHYSFS_uint8 *) __PHYSFS_smallAlloc(len);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1360
        BAIL_IF_MACRO(!buf, PHYSFS_ERR_OUT_OF_MEMORY, -1);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1361
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1362
        if (!io->seek(io, pos - len) || !__PHYSFS_readAll(io, buf, len))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1363
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1364
            __PHYSFS_smallFree(buf);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1365
            return -1;  /* error was set elsewhere. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1366
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1367
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1368
        for (i = (PHYSFS_sint32) (len - 4); i >= 0; i--)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1369
        {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1370
            if ( (buf[i] == 0x50) && (buf[i+1] == 0x4b) &&
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1371
                 (buf[i+2] == 0x06) && (buf[i+3] == 0x06) )
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1372
            {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1373
                __PHYSFS_smallFree(buf);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1374
                return pos - (len - i);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1375
            } /* if */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1376
        } /* for */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1377
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1378
        __PHYSFS_smallFree(buf);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1379
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1380
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1381
    BAIL_MACRO(PHYSFS_ERR_CORRUPT, -1);  /* didn't find it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1382
} /* zip64_find_end_of_central_dir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1383
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1384
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1385
static int zip64_parse_end_of_central_dir(ZIPinfo *info,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1386
                                          PHYSFS_uint64 *data_start,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1387
                                          PHYSFS_uint64 *dir_ofs,
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1388
                                          PHYSFS_uint64 *entry_count,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1389
                                          PHYSFS_sint64 pos)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1390
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1391
    PHYSFS_Io *io = info->io;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1392
    PHYSFS_uint64 ui64;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1393
    PHYSFS_uint32 ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1394
    PHYSFS_uint16 ui16;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1395
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1396
    /* We should be positioned right past the locator signature. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1397
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1398
    if ((pos < 0) || (!io->seek(io, pos)))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1399
        return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1400
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1401
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1402
    if (ui32 != ZIP64_END_OF_CENTRAL_DIRECTORY_LOCATOR_SIG)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1403
        return -1;  /* it's not a Zip64 archive. Not an error, though! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1404
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1405
    info->zip64 = 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1406
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1407
    /* number of the disk with the start of the central directory. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1408
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1409
    BAIL_IF_MACRO(ui32 != 0, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1410
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1411
    /* offset of Zip64 end of central directory record. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1412
    BAIL_IF_MACRO(!readui64(io, &ui64), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1413
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1414
    /* total number of disks */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1415
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1416
    BAIL_IF_MACRO(ui32 != 1, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1417
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1418
    pos = zip64_find_end_of_central_dir(io, pos, ui64);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1419
    if (pos < 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1420
        return 0;  /* oh well. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1421
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1422
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1423
     * For self-extracting archives, etc, there's crapola in the file
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1424
     *  before the zipfile records; we calculate how much data there is
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1425
     *  prepended by determining how far the zip64-end-of-central-directory
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1426
     *  offset is from where it is supposed to be...the difference in bytes
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1427
     *  is how much arbitrary data is at the start of the physical file.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1428
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1429
    assert(((PHYSFS_uint64) pos) >= ui64);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1430
    *data_start = ((PHYSFS_uint64) pos) - ui64;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1431
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1432
    BAIL_IF_MACRO(!io->seek(io, pos), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1433
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1434
    /* check signature again, just in case. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1435
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1436
    BAIL_IF_MACRO(ui32 != ZIP64_END_OF_CENTRAL_DIR_SIG, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1437
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1438
    /* size of Zip64 end of central directory record. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1439
    BAIL_IF_MACRO(!readui64(io, &ui64), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1440
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1441
    /* version made by. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1442
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1443
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1444
    /* version needed to extract. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1445
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1446
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1447
    /* number of this disk. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1448
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1449
    BAIL_IF_MACRO(ui32 != 0, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1450
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1451
    /* number of disk with start of central directory record. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1452
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1453
    BAIL_IF_MACRO(ui32 != 0, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1454
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1455
    /* total number of entries in the central dir on this disk */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1456
    BAIL_IF_MACRO(!readui64(io, &ui64), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1457
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1458
    /* total number of entries in the central dir */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1459
    BAIL_IF_MACRO(!readui64(io, entry_count), ERRPASS, 0);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1460
    BAIL_IF_MACRO(ui64 != *entry_count, PHYSFS_ERR_CORRUPT, 0);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1461
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1462
    /* size of the central directory */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1463
    BAIL_IF_MACRO(!readui64(io, &ui64), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1464
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1465
    /* offset of central directory */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1466
    BAIL_IF_MACRO(!readui64(io, dir_ofs), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1467
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1468
    /* Since we know the difference, fix up the central dir offset... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1469
    *dir_ofs += *data_start;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1470
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1471
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1472
     * There are more fields here, for encryption and feature-specific things,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1473
     *  but we don't care about any of them at the moment.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1474
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1475
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1476
    return 1;  /* made it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1477
} /* zip64_parse_end_of_central_dir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1478
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1479
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1480
static int zip_parse_end_of_central_dir(ZIPinfo *info,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1481
                                        PHYSFS_uint64 *data_start,
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1482
                                        PHYSFS_uint64 *dir_ofs,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1483
                                        PHYSFS_uint64 *entry_count)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1484
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1485
    PHYSFS_Io *io = info->io;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1486
    PHYSFS_uint16 entryCount16;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1487
    PHYSFS_uint32 offset32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1488
    PHYSFS_uint32 ui32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1489
    PHYSFS_uint16 ui16;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1490
    PHYSFS_sint64 len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1491
    PHYSFS_sint64 pos;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1492
    int rc;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1493
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1494
    /* find the end-of-central-dir record, and seek to it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1495
    pos = zip_find_end_of_central_dir(io, &len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1496
    BAIL_IF_MACRO(pos == -1, ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1497
    BAIL_IF_MACRO(!io->seek(io, pos), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1498
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1499
    /* check signature again, just in case. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1500
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1501
    BAIL_IF_MACRO(ui32 != ZIP_END_OF_CENTRAL_DIR_SIG, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1502
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1503
    /* Seek back to see if "Zip64 end of central directory locator" exists. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1504
    /* this record is 20 bytes before end-of-central-dir */
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1505
    rc = zip64_parse_end_of_central_dir(info, data_start, dir_ofs,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1506
                                        entry_count, pos - 20);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1507
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1508
    /* Error or success? Bounce out of here. Keep going if not zip64. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1509
    if ((rc == 0) || (rc == 1))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1510
        return rc;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1511
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1512
    assert(rc == -1);  /* no error, just not a Zip64 archive. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1513
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1514
    /* Not Zip64? Seek back to where we were and keep processing. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1515
    BAIL_IF_MACRO(!io->seek(io, pos + 4), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1516
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1517
    /* number of this disk */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1518
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1519
    BAIL_IF_MACRO(ui16 != 0, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1520
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1521
    /* number of the disk with the start of the central directory */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1522
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1523
    BAIL_IF_MACRO(ui16 != 0, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1524
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1525
    /* total number of entries in the central dir on this disk */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1526
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1527
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1528
    /* total number of entries in the central dir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1529
    BAIL_IF_MACRO(!readui16(io, &entryCount16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1530
    BAIL_IF_MACRO(ui16 != entryCount16, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1531
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1532
    *entry_count = entryCount16;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1533
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1534
    /* size of the central directory */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1535
    BAIL_IF_MACRO(!readui32(io, &ui32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1536
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1537
    /* offset of central directory */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1538
    BAIL_IF_MACRO(!readui32(io, &offset32), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1539
    *dir_ofs = (PHYSFS_uint64) offset32;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1540
    BAIL_IF_MACRO(pos < (*dir_ofs + ui32), PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1541
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1542
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1543
     * For self-extracting archives, etc, there's crapola in the file
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1544
     *  before the zipfile records; we calculate how much data there is
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1545
     *  prepended by determining how far the central directory offset is
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1546
     *  from where it is supposed to be (start of end-of-central-dir minus
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1547
     *  sizeof central dir)...the difference in bytes is how much arbitrary
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1548
     *  data is at the start of the physical file.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1549
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1550
    *data_start = (PHYSFS_uint64) (pos - (*dir_ofs + ui32));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1551
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1552
    /* Now that we know the difference, fix up the central dir offset... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1553
    *dir_ofs += *data_start;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1554
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1555
    /* zipfile comment length */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1556
    BAIL_IF_MACRO(!readui16(io, &ui16), ERRPASS, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1557
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1558
    /*
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1559
     * Make sure that the comment length matches to the end of file...
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1560
     *  If it doesn't, we're either in the wrong part of the file, or the
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1561
     *  file is corrupted, but we give up either way.
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1562
     */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1563
    BAIL_IF_MACRO((pos + 22 + ui16) != len, PHYSFS_ERR_CORRUPT, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1564
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1565
    return 1;  /* made it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1566
} /* zip_parse_end_of_central_dir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1567
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1568
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1569
static int zip_alloc_hashtable(ZIPinfo *info, const PHYSFS_uint64 entry_count)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1570
{
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1571
    size_t alloclen;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1572
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1573
    info->hashBuckets = (size_t) (entry_count / 5);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1574
    if (!info->hashBuckets)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1575
        info->hashBuckets = 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1576
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1577
    alloclen = info->hashBuckets * sizeof (ZIPentry *);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1578
    info->hash = (ZIPentry **) allocator.Malloc(alloclen);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1579
    BAIL_IF_MACRO(!info->hash, PHYSFS_ERR_OUT_OF_MEMORY, 0);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1580
    memset(info->hash, '\0', alloclen);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1581
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1582
    return 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1583
} /* zip_alloc_hashtable */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1584
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1585
static void ZIP_closeArchive(void *opaque);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1586
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1587
static void *ZIP_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1588
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1589
    ZIPinfo *info = NULL;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1590
    PHYSFS_uint64 dstart;  /* data start */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1591
    PHYSFS_uint64 cdir_ofs;  /* central dir offset */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1592
    PHYSFS_uint64 entry_count;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1593
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1594
    assert(io != NULL);  /* shouldn't ever happen. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1595
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1596
    BAIL_IF_MACRO(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1597
    BAIL_IF_MACRO(!isZip(io), ERRPASS, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1598
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1599
    info = (ZIPinfo *) allocator.Malloc(sizeof (ZIPinfo));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1600
    BAIL_IF_MACRO(!info, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1601
    memset(info, '\0', sizeof (ZIPinfo));
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1602
    info->root.resolved = ZIP_DIRECTORY;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1603
    info->io = io;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1604
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1605
    if (!zip_parse_end_of_central_dir(info, &dstart, &cdir_ofs, &entry_count))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1606
        goto ZIP_openarchive_failed;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1607
    else if (!zip_alloc_hashtable(info, entry_count))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1608
        goto ZIP_openarchive_failed;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1609
    else if (!zip_load_entries(info, dstart, cdir_ofs, entry_count))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1610
        goto ZIP_openarchive_failed;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1611
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1612
    assert(info->root.sibling == NULL);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1613
    return info;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1614
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1615
ZIP_openarchive_failed:
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1616
    info->io = NULL;  /* don't let ZIP_closeArchive destroy (io). */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1617
    ZIP_closeArchive(info);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1618
    return NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1619
} /* ZIP_openArchive */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1620
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1621
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1622
static void ZIP_enumerateFiles(void *opaque, const char *dname,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1623
                               PHYSFS_EnumFilesCallback cb,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1624
                               const char *origdir, void *callbackdata)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1625
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1626
    ZIPinfo *info = ((ZIPinfo *) opaque);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1627
    const ZIPentry *entry = zip_find_entry(info, dname);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1628
    if (entry && (entry->resolved == ZIP_DIRECTORY))
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1629
    {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1630
        for (entry = entry->children; entry; entry = entry->sibling)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1631
        {
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1632
            const char *ptr = strrchr(entry->name, '/');
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1633
            cb(callbackdata, origdir, ptr ? ptr + 1 : entry->name);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1634
        } /* for */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1635
    } /* if */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1636
} /* ZIP_enumerateFiles */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1637
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1638
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1639
static PHYSFS_Io *zip_get_io(PHYSFS_Io *io, ZIPinfo *inf, ZIPentry *entry)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1640
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1641
    int success;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1642
    PHYSFS_Io *retval = io->duplicate(io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1643
    BAIL_IF_MACRO(!retval, ERRPASS, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1644
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1645
    /* !!! FIXME: if you open a dir here, it should bail ERR_NOT_A_FILE */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1646
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1647
    /* (inf) can be NULL if we already resolved. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1648
    success = (inf == NULL) || zip_resolve(retval, inf, entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1649
    if (success)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1650
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1651
        PHYSFS_sint64 offset;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1652
        offset = ((entry->symlink) ? entry->symlink->offset : entry->offset);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1653
        success = retval->seek(retval, offset);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1654
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1655
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1656
    if (!success)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1657
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1658
        retval->destroy(retval);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1659
        retval = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1660
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1661
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1662
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1663
} /* zip_get_io */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1664
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1665
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1666
static PHYSFS_Io *ZIP_openRead(void *opaque, const char *filename)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1667
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1668
    PHYSFS_Io *retval = NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1669
    ZIPinfo *info = (ZIPinfo *) opaque;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1670
    ZIPentry *entry = zip_find_entry(info, filename);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1671
    ZIPfileinfo *finfo = NULL;
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1672
    PHYSFS_Io *io = NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1673
    PHYSFS_uint8 *password = NULL;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1674
    int i;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1675
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1676
    /* if not found, see if maybe "$PASSWORD" is appended. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1677
    if ((!entry) && (info->has_crypto))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1678
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1679
        const char *ptr = strrchr(filename, '$');
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1680
        if (ptr != NULL)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1681
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1682
            const PHYSFS_uint64 len = (PHYSFS_uint64) (ptr - filename);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1683
            char *str = (char *) __PHYSFS_smallAlloc(len + 1);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1684
            BAIL_IF_MACRO(!str, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1685
            memcpy(str, filename, len);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1686
            str[len] = '\0';
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1687
            entry = zip_find_entry(info, str);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1688
            __PHYSFS_smallFree(str);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1689
            password = (PHYSFS_uint8 *) (ptr + 1);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1690
        } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1691
    } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1692
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1693
    BAIL_IF_MACRO(!entry, ERRPASS, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1694
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1695
    retval = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1696
    GOTO_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, ZIP_openRead_failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1697
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1698
    finfo = (ZIPfileinfo *) allocator.Malloc(sizeof (ZIPfileinfo));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1699
    GOTO_IF_MACRO(!finfo, PHYSFS_ERR_OUT_OF_MEMORY, ZIP_openRead_failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1700
    memset(finfo, '\0', sizeof (ZIPfileinfo));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1701
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1702
    io = zip_get_io(info->io, info, entry);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1703
    GOTO_IF_MACRO(!io, ERRPASS, ZIP_openRead_failed);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1704
    finfo->io = io;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1705
    finfo->entry = ((entry->symlink != NULL) ? entry->symlink : entry);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1706
    initializeZStream(&finfo->stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1707
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1708
    if (finfo->entry->compression_method != COMPMETH_NONE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1709
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1710
        finfo->buffer = (PHYSFS_uint8 *) allocator.Malloc(ZIP_READBUFSIZE);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1711
        if (!finfo->buffer)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1712
            GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, ZIP_openRead_failed);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1713
        else if (zlib_err(inflateInit2(&finfo->stream, -MAX_WBITS)) != Z_OK)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1714
            goto ZIP_openRead_failed;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1715
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1716
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1717
    if (!zip_entry_is_tradional_crypto(entry))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1718
        GOTO_IF_MACRO(password != NULL, PHYSFS_ERR_BAD_PASSWORD, ZIP_openRead_failed);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1719
    else
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1720
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1721
        PHYSFS_uint8 crypto_header[12];
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1722
        GOTO_IF_MACRO(password == NULL, PHYSFS_ERR_BAD_PASSWORD, ZIP_openRead_failed);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1723
        if (io->read(io, crypto_header, 12) != 12)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1724
            goto ZIP_openRead_failed;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1725
        else if (!zip_prep_crypto_keys(finfo, crypto_header, password))
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1726
            goto ZIP_openRead_failed;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1727
    } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1728
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1729
    memcpy(retval, &ZIP_Io, sizeof (PHYSFS_Io));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1730
    retval->opaque = finfo;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1731
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1732
    return retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1733
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1734
ZIP_openRead_failed:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1735
    if (finfo != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1736
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1737
        if (finfo->io != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1738
            finfo->io->destroy(finfo->io);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1739
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1740
        if (finfo->buffer != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1741
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1742
            allocator.Free(finfo->buffer);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1743
            inflateEnd(&finfo->stream);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1744
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1745
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1746
        allocator.Free(finfo);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1747
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1748
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1749
    if (retval != NULL)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1750
        allocator.Free(retval);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1751
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1752
    return NULL;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1753
} /* ZIP_openRead */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1754
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1755
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1756
static PHYSFS_Io *ZIP_openWrite(void *opaque, const char *filename)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1757
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1758
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1759
} /* ZIP_openWrite */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1760
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1761
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1762
static PHYSFS_Io *ZIP_openAppend(void *opaque, const char *filename)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1763
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1764
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, NULL);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1765
} /* ZIP_openAppend */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1766
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1767
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1768
static void ZIP_closeArchive(void *opaque)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1769
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1770
    ZIPinfo *info = (ZIPinfo *) (opaque);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1771
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1772
    if (!info)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1773
        return;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1774
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1775
    if (info->io)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1776
        info->io->destroy(info->io);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1777
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1778
    assert(info->root.sibling == NULL);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1779
    assert(info->hash || (info->root.children == NULL));
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1780
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1781
    if (info->hash)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1782
    {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1783
        size_t i;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1784
        for (i = 0; i < info->hashBuckets; i++)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1785
        {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1786
            ZIPentry *entry;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1787
            ZIPentry *next;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1788
            for (entry = info->hash[i]; entry; entry = next)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1789
            {
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1790
                next = entry->hashnext;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1791
                allocator.Free(entry);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1792
            } /* for */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1793
        } /* for */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1794
        allocator.Free(info->hash);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1795
    } /* if */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1796
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1797
    allocator.Free(info);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1798
} /* ZIP_closeArchive */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1799
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1800
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1801
static int ZIP_remove(void *opaque, const char *name)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1802
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1803
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1804
} /* ZIP_remove */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1805
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1806
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1807
static int ZIP_mkdir(void *opaque, const char *name)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1808
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1809
    BAIL_MACRO(PHYSFS_ERR_READ_ONLY, 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1810
} /* ZIP_mkdir */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1811
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1812
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1813
static int ZIP_stat(void *opaque, const char *filename, PHYSFS_Stat *stat)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1814
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1815
    ZIPinfo *info = (ZIPinfo *) opaque;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1816
    const ZIPentry *entry = zip_find_entry(info, filename);
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1817
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1818
    /* !!! FIXME: does this need to resolve entries here? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1819
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1820
    if (entry == NULL)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1821
        return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1822
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1823
    else if (entry->resolved == ZIP_DIRECTORY)
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1824
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1825
        stat->filesize = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1826
        stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1827
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1828
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1829
    else if (zip_entry_is_symlink(entry))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1830
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1831
        stat->filesize = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1832
        stat->filetype = PHYSFS_FILETYPE_SYMLINK;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1833
    } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1834
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1835
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1836
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1837
        stat->filesize = (PHYSFS_sint64) entry->uncompressed_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1838
        stat->filetype = PHYSFS_FILETYPE_REGULAR;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1839
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1840
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1841
    stat->modtime = ((entry) ? entry->last_mod_time : 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1842
    stat->createtime = stat->modtime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1843
    stat->accesstime = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1844
    stat->readonly = 1; /* .zip files are always read only */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1845
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1846
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1847
} /* ZIP_stat */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1848
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1849
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1850
const PHYSFS_Archiver __PHYSFS_Archiver_ZIP =
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1851
{
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1852
    CURRENT_PHYSFS_ARCHIVER_API_VERSION,
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1853
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1854
        "ZIP",
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1855
        "PkZip/WinZip/Info-Zip compatible",
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1856
        "Ryan C. Gordon <icculus@icculus.org>",
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1857
        "https://icculus.org/physfs/",
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1858
        1,  /* supportsSymlinks */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1859
    },
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1860
    ZIP_openArchive,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1861
    ZIP_enumerateFiles,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1862
    ZIP_openRead,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1863
    ZIP_openWrite,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1864
    ZIP_openAppend,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1865
    ZIP_remove,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1866
    ZIP_mkdir,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1867
    ZIP_stat,
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1868
    ZIP_closeArchive
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1869
};
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1870
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1871
#endif  /* defined PHYSFS_SUPPORTS_ZIP */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1872
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 12217
diff changeset
  1873
/* end of archiver_zip.c ... */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
  1874