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7768
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/**
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* PhysicsFS; a portable, flexible file i/o abstraction.
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*
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* Documentation is in physfs.h. It's verbose, honest. :)
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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.
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*/
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/* !!! FIXME: ERR_PAST_EOF shouldn't trigger for reads. Just return zero. */
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/* !!! FIXME: use snprintf(), not sprintf(). */
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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typedef struct __PHYSFS_DIRHANDLE__
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{
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void *opaque; /* Instance data unique to the archiver. */
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char *dirName; /* Path to archive in platform-dependent notation. */
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char *mountPoint; /* Mountpoint in virtual file tree. */
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const PHYSFS_Archiver *funcs; /* Ptr to archiver info for this handle. */
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struct __PHYSFS_DIRHANDLE__ *next; /* linked list stuff. */
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} DirHandle;
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typedef struct __PHYSFS_FILEHANDLE__
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{
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PHYSFS_Io *io; /* Instance data unique to the archiver for this file. */
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PHYSFS_uint8 forReading; /* Non-zero if reading, zero if write/append */
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const DirHandle *dirHandle; /* Archiver instance that created this */
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PHYSFS_uint8 *buffer; /* Buffer, if set (NULL otherwise). Don't touch! */
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PHYSFS_uint32 bufsize; /* Bufsize, if set (0 otherwise). Don't touch! */
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PHYSFS_uint32 buffill; /* Buffer fill size. Don't touch! */
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PHYSFS_uint32 bufpos; /* Buffer position. Don't touch! */
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struct __PHYSFS_FILEHANDLE__ *next; /* linked list stuff. */
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} FileHandle;
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typedef struct __PHYSFS_ERRSTATETYPE__
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{
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void *tid;
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PHYSFS_ErrorCode code;
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struct __PHYSFS_ERRSTATETYPE__ *next;
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} ErrState;
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/* The various i/o drivers...some of these may not be compiled in. */
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extern const PHYSFS_Archiver __PHYSFS_Archiver_ZIP;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_LZMA;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_GRP;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_QPAK;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_HOG;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_MVL;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_WAD;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_DIR;
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extern const PHYSFS_Archiver __PHYSFS_Archiver_ISO9660;
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static const PHYSFS_Archiver *staticArchivers[] =
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{
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#if PHYSFS_SUPPORTS_ZIP
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&__PHYSFS_Archiver_ZIP,
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#endif
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#if PHYSFS_SUPPORTS_7Z
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&__PHYSFS_Archiver_LZMA,
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#endif
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#if PHYSFS_SUPPORTS_GRP
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&__PHYSFS_Archiver_GRP,
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#endif
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#if PHYSFS_SUPPORTS_QPAK
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&__PHYSFS_Archiver_QPAK,
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#endif
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#if PHYSFS_SUPPORTS_HOG
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&__PHYSFS_Archiver_HOG,
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#endif
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#if PHYSFS_SUPPORTS_MVL
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&__PHYSFS_Archiver_MVL,
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#endif
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#if PHYSFS_SUPPORTS_WAD
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&__PHYSFS_Archiver_WAD,
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#endif
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#if PHYSFS_SUPPORTS_ISO9660
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&__PHYSFS_Archiver_ISO9660,
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#endif
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NULL
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};
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/* General PhysicsFS state ... */
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static int initialized = 0;
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static ErrState *errorStates = NULL;
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static DirHandle *searchPath = NULL;
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static DirHandle *writeDir = NULL;
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static FileHandle *openWriteList = NULL;
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static FileHandle *openReadList = NULL;
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static char *baseDir = NULL;
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static char *userDir = NULL;
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static char *prefDir = NULL;
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static int allowSymLinks = 0;
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static const PHYSFS_Archiver **archivers = NULL;
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static const PHYSFS_ArchiveInfo **archiveInfo = NULL;
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/* mutexes ... */
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static void *errorLock = NULL; /* protects error message list. */
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static void *stateLock = NULL; /* protects other PhysFS static state. */
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/* allocator ... */
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static int externalAllocator = 0;
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PHYSFS_Allocator allocator;
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/* PHYSFS_Io implementation for i/o to physical filesystem... */
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/* !!! FIXME: maybe refcount the paths in a string pool? */
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typedef struct __PHYSFS_NativeIoInfo
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{
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void *handle;
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const char *path;
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int mode; /* 'r', 'w', or 'a' */
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} NativeIoInfo;
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static PHYSFS_sint64 nativeIo_read(PHYSFS_Io *io, void *buf, PHYSFS_uint64 len)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_platformRead(info->handle, buf, len);
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} /* nativeIo_read */
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static PHYSFS_sint64 nativeIo_write(PHYSFS_Io *io, const void *buffer,
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PHYSFS_uint64 len)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_platformWrite(info->handle, buffer, len);
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} /* nativeIo_write */
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static int nativeIo_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_platformSeek(info->handle, offset);
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} /* nativeIo_seek */
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static PHYSFS_sint64 nativeIo_tell(PHYSFS_Io *io)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_platformTell(info->handle);
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} /* nativeIo_tell */
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static PHYSFS_sint64 nativeIo_length(PHYSFS_Io *io)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_platformFileLength(info->handle);
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} /* nativeIo_length */
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static PHYSFS_Io *nativeIo_duplicate(PHYSFS_Io *io)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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return __PHYSFS_createNativeIo(info->path, info->mode);
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} /* nativeIo_duplicate */
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static int nativeIo_flush(PHYSFS_Io *io)
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{
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return __PHYSFS_platformFlush(io->opaque);
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} /* nativeIo_flush */
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static void nativeIo_destroy(PHYSFS_Io *io)
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{
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NativeIoInfo *info = (NativeIoInfo *) io->opaque;
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__PHYSFS_platformClose(info->handle);
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allocator.Free((void *) info->path);
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allocator.Free(info);
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allocator.Free(io);
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} /* nativeIo_destroy */
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static const PHYSFS_Io __PHYSFS_nativeIoInterface =
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{
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CURRENT_PHYSFS_IO_API_VERSION, NULL,
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nativeIo_read,
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nativeIo_write,
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nativeIo_seek,
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nativeIo_tell,
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nativeIo_length,
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nativeIo_duplicate,
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nativeIo_flush,
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nativeIo_destroy
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};
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PHYSFS_Io *__PHYSFS_createNativeIo(const char *path, const int mode)
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{
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PHYSFS_Io *io = NULL;
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NativeIoInfo *info = NULL;
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void *handle = NULL;
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char *pathdup = NULL;
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assert((mode == 'r') || (mode == 'w') || (mode == 'a'));
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io = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
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GOTO_IF_MACRO(!io, PHYSFS_ERR_OUT_OF_MEMORY, createNativeIo_failed);
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info = (NativeIoInfo *) allocator.Malloc(sizeof (NativeIoInfo));
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GOTO_IF_MACRO(!info, PHYSFS_ERR_OUT_OF_MEMORY, createNativeIo_failed);
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pathdup = (char *) allocator.Malloc(strlen(path) + 1);
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GOTO_IF_MACRO(!pathdup, PHYSFS_ERR_OUT_OF_MEMORY, createNativeIo_failed);
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if (mode == 'r')
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handle = __PHYSFS_platformOpenRead(path);
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else if (mode == 'w')
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handle = __PHYSFS_platformOpenWrite(path);
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else if (mode == 'a')
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handle = __PHYSFS_platformOpenAppend(path);
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GOTO_IF_MACRO(!handle, ERRPASS, createNativeIo_failed);
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strcpy(pathdup, path);
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info->handle = handle;
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info->path = pathdup;
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info->mode = mode;
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memcpy(io, &__PHYSFS_nativeIoInterface, sizeof (*io));
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io->opaque = info;
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return io;
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createNativeIo_failed:
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if (handle != NULL) __PHYSFS_platformClose(handle);
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if (pathdup != NULL) allocator.Free(pathdup);
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if (info != NULL) allocator.Free(info);
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if (io != NULL) allocator.Free(io);
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return NULL;
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} /* __PHYSFS_createNativeIo */
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/* PHYSFS_Io implementation for i/o to a memory buffer... */
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typedef struct __PHYSFS_MemoryIoInfo
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{
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const PHYSFS_uint8 *buf;
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PHYSFS_uint64 len;
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PHYSFS_uint64 pos;
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PHYSFS_Io *parent;
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volatile PHYSFS_uint32 refcount;
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void (*destruct)(void *);
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} MemoryIoInfo;
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static PHYSFS_sint64 memoryIo_read(PHYSFS_Io *io, void *buf, PHYSFS_uint64 len)
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{
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MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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const PHYSFS_uint64 avail = info->len - info->pos;
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assert(avail <= info->len);
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if (avail == 0)
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return 0; /* we're at EOF; nothing to do. */
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if (len > avail)
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len = avail;
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memcpy(buf, info->buf + info->pos, (size_t) len);
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info->pos += len;
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return len;
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} /* memoryIo_read */
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static PHYSFS_sint64 memoryIo_write(PHYSFS_Io *io, const void *buffer,
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PHYSFS_uint64 len)
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{
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BAIL_MACRO(PHYSFS_ERR_OPEN_FOR_READING, -1);
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} /* memoryIo_write */
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static int memoryIo_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
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{
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MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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BAIL_IF_MACRO(offset > info->len, PHYSFS_ERR_PAST_EOF, 0);
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info->pos = offset;
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return 1;
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} /* memoryIo_seek */
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static PHYSFS_sint64 memoryIo_tell(PHYSFS_Io *io)
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{
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const MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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return (PHYSFS_sint64) info->pos;
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} /* memoryIo_tell */
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static PHYSFS_sint64 memoryIo_length(PHYSFS_Io *io)
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{
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const MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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return (PHYSFS_sint64) info->len;
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} /* memoryIo_length */
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static PHYSFS_Io *memoryIo_duplicate(PHYSFS_Io *io)
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{
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MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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MemoryIoInfo *newinfo = NULL;
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PHYSFS_Io *parent = info->parent;
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PHYSFS_Io *retval = NULL;
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/* avoid deep copies. */
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assert((!parent) || (!((MemoryIoInfo *) parent->opaque)->parent) );
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/* share the buffer between duplicates. */
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if (parent != NULL) /* dup the parent, increment its refcount. */
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return parent->duplicate(parent);
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/* we're the parent. */
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retval = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
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BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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newinfo = (MemoryIoInfo *) allocator.Malloc(sizeof (MemoryIoInfo));
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if (!newinfo)
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{
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allocator.Free(retval);
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BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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} /* if */
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/* !!! FIXME: want lockless atomic increment. */
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__PHYSFS_platformGrabMutex(stateLock);
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info->refcount++;
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__PHYSFS_platformReleaseMutex(stateLock);
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memset(newinfo, '\0', sizeof (*info));
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newinfo->buf = info->buf;
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newinfo->len = info->len;
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newinfo->pos = 0;
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newinfo->parent = io;
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newinfo->refcount = 0;
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newinfo->destruct = NULL;
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memcpy(retval, io, sizeof (*retval));
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retval->opaque = newinfo;
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return retval;
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} /* memoryIo_duplicate */
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static int memoryIo_flush(PHYSFS_Io *io) { return 1; /* it's read-only. */ }
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329 |
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static void memoryIo_destroy(PHYSFS_Io *io)
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{
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MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
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PHYSFS_Io *parent = info->parent;
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int should_die = 0;
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335 |
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if (parent != NULL)
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{
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assert(info->buf == ((MemoryIoInfo *) info->parent->opaque)->buf);
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assert(info->len == ((MemoryIoInfo *) info->parent->opaque)->len);
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assert(info->refcount == 0);
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assert(info->destruct == NULL);
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342 |
allocator.Free(info);
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|
343 |
allocator.Free(io);
|
|
|
344 |
parent->destroy(parent); /* decrements refcount. */
|
|
|
345 |
return;
|
|
|
346 |
} /* if */
|
|
|
347 |
|
|
|
348 |
/* we _are_ the parent. */
|
|
|
349 |
assert(info->refcount > 0); /* even in a race, we hold a reference. */
|
|
|
350 |
|
|
|
351 |
/* !!! FIXME: want lockless atomic decrement. */
|
|
|
352 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
353 |
info->refcount--;
|
|
|
354 |
should_die = (info->refcount == 0);
|
|
|
355 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
356 |
|
|
|
357 |
if (should_die)
|
|
|
358 |
{
|
|
|
359 |
void (*destruct)(void *) = info->destruct;
|
|
|
360 |
void *buf = (void *) info->buf;
|
|
|
361 |
io->opaque = NULL; /* kill this here in case of race. */
|
|
|
362 |
allocator.Free(info);
|
|
|
363 |
allocator.Free(io);
|
|
|
364 |
if (destruct != NULL)
|
|
|
365 |
destruct(buf);
|
|
|
366 |
} /* if */
|
|
|
367 |
} /* memoryIo_destroy */
|
|
|
368 |
|
|
|
369 |
|
|
|
370 |
static const PHYSFS_Io __PHYSFS_memoryIoInterface =
|
|
|
371 |
{
|
|
|
372 |
CURRENT_PHYSFS_IO_API_VERSION, NULL,
|
|
|
373 |
memoryIo_read,
|
|
|
374 |
memoryIo_write,
|
|
|
375 |
memoryIo_seek,
|
|
|
376 |
memoryIo_tell,
|
|
|
377 |
memoryIo_length,
|
|
|
378 |
memoryIo_duplicate,
|
|
|
379 |
memoryIo_flush,
|
|
|
380 |
memoryIo_destroy
|
|
|
381 |
};
|
|
|
382 |
|
|
|
383 |
PHYSFS_Io *__PHYSFS_createMemoryIo(const void *buf, PHYSFS_uint64 len,
|
|
|
384 |
void (*destruct)(void *))
|
|
|
385 |
{
|
|
|
386 |
PHYSFS_Io *io = NULL;
|
|
|
387 |
MemoryIoInfo *info = NULL;
|
|
|
388 |
|
|
|
389 |
io = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
|
|
|
390 |
GOTO_IF_MACRO(!io, PHYSFS_ERR_OUT_OF_MEMORY, createMemoryIo_failed);
|
|
|
391 |
info = (MemoryIoInfo *) allocator.Malloc(sizeof (MemoryIoInfo));
|
|
|
392 |
GOTO_IF_MACRO(!info, PHYSFS_ERR_OUT_OF_MEMORY, createMemoryIo_failed);
|
|
|
393 |
|
|
|
394 |
memset(info, '\0', sizeof (*info));
|
|
|
395 |
info->buf = (const PHYSFS_uint8 *) buf;
|
|
|
396 |
info->len = len;
|
|
|
397 |
info->pos = 0;
|
|
|
398 |
info->parent = NULL;
|
|
|
399 |
info->refcount = 1;
|
|
|
400 |
info->destruct = destruct;
|
|
|
401 |
|
|
|
402 |
memcpy(io, &__PHYSFS_memoryIoInterface, sizeof (*io));
|
|
|
403 |
io->opaque = info;
|
|
|
404 |
return io;
|
|
|
405 |
|
|
|
406 |
createMemoryIo_failed:
|
|
|
407 |
if (info != NULL) allocator.Free(info);
|
|
|
408 |
if (io != NULL) allocator.Free(io);
|
|
|
409 |
return NULL;
|
|
|
410 |
} /* __PHYSFS_createMemoryIo */
|
|
|
411 |
|
|
|
412 |
|
|
|
413 |
/* PHYSFS_Io implementation for i/o to a PHYSFS_File... */
|
|
|
414 |
|
|
|
415 |
static PHYSFS_sint64 handleIo_read(PHYSFS_Io *io, void *buf, PHYSFS_uint64 len)
|
|
|
416 |
{
|
|
|
417 |
return PHYSFS_readBytes((PHYSFS_File *) io->opaque, buf, len);
|
|
|
418 |
} /* handleIo_read */
|
|
|
419 |
|
|
|
420 |
static PHYSFS_sint64 handleIo_write(PHYSFS_Io *io, const void *buffer,
|
|
|
421 |
PHYSFS_uint64 len)
|
|
|
422 |
{
|
|
|
423 |
return PHYSFS_writeBytes((PHYSFS_File *) io->opaque, buffer, len);
|
|
|
424 |
} /* handleIo_write */
|
|
|
425 |
|
|
|
426 |
static int handleIo_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
|
|
|
427 |
{
|
|
|
428 |
return PHYSFS_seek((PHYSFS_File *) io->opaque, offset);
|
|
|
429 |
} /* handleIo_seek */
|
|
|
430 |
|
|
|
431 |
static PHYSFS_sint64 handleIo_tell(PHYSFS_Io *io)
|
|
|
432 |
{
|
|
|
433 |
return PHYSFS_tell((PHYSFS_File *) io->opaque);
|
|
|
434 |
} /* handleIo_tell */
|
|
|
435 |
|
|
|
436 |
static PHYSFS_sint64 handleIo_length(PHYSFS_Io *io)
|
|
|
437 |
{
|
|
|
438 |
return PHYSFS_fileLength((PHYSFS_File *) io->opaque);
|
|
|
439 |
} /* handleIo_length */
|
|
|
440 |
|
|
|
441 |
static PHYSFS_Io *handleIo_duplicate(PHYSFS_Io *io)
|
|
|
442 |
{
|
|
|
443 |
/*
|
|
|
444 |
* There's no duplicate at the PHYSFS_File level, so we break the
|
|
|
445 |
* abstraction. We're allowed to: we're physfs.c!
|
|
|
446 |
*/
|
|
|
447 |
FileHandle *origfh = (FileHandle *) io->opaque;
|
|
|
448 |
FileHandle *newfh = (FileHandle *) allocator.Malloc(sizeof (FileHandle));
|
|
|
449 |
PHYSFS_Io *retval = NULL;
|
|
|
450 |
|
|
|
451 |
GOTO_IF_MACRO(!newfh, PHYSFS_ERR_OUT_OF_MEMORY, handleIo_dupe_failed);
|
|
|
452 |
memset(newfh, '\0', sizeof (*newfh));
|
|
|
453 |
|
|
|
454 |
retval = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
|
|
|
455 |
GOTO_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, handleIo_dupe_failed);
|
|
|
456 |
|
|
|
457 |
#if 0 /* we don't buffer the duplicate, at least not at the moment. */
|
|
|
458 |
if (origfh->buffer != NULL)
|
|
|
459 |
{
|
|
|
460 |
newfh->buffer = (PHYSFS_uint8 *) allocator.Malloc(origfh->bufsize);
|
|
|
461 |
if (!newfh->buffer)
|
|
|
462 |
GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, handleIo_dupe_failed);
|
|
|
463 |
newfh->bufsize = origfh->bufsize;
|
|
|
464 |
} /* if */
|
|
|
465 |
#endif
|
|
|
466 |
|
|
|
467 |
newfh->io = origfh->io->duplicate(origfh->io);
|
|
|
468 |
GOTO_IF_MACRO(!newfh->io, ERRPASS, handleIo_dupe_failed);
|
|
|
469 |
|
|
|
470 |
newfh->forReading = origfh->forReading;
|
|
|
471 |
newfh->dirHandle = origfh->dirHandle;
|
|
|
472 |
|
|
|
473 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
474 |
if (newfh->forReading)
|
|
|
475 |
{
|
|
|
476 |
newfh->next = openReadList;
|
|
|
477 |
openReadList = newfh;
|
|
|
478 |
} /* if */
|
|
|
479 |
else
|
|
|
480 |
{
|
|
|
481 |
newfh->next = openWriteList;
|
|
|
482 |
openWriteList = newfh;
|
|
|
483 |
} /* else */
|
|
|
484 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
485 |
|
|
|
486 |
memcpy(retval, io, sizeof (PHYSFS_Io));
|
|
|
487 |
retval->opaque = newfh;
|
|
|
488 |
return retval;
|
|
|
489 |
|
|
|
490 |
handleIo_dupe_failed:
|
|
|
491 |
if (newfh)
|
|
|
492 |
{
|
|
|
493 |
if (newfh->io != NULL) newfh->io->destroy(newfh->io);
|
|
|
494 |
if (newfh->buffer != NULL) allocator.Free(newfh->buffer);
|
|
|
495 |
allocator.Free(newfh);
|
|
|
496 |
} /* if */
|
|
|
497 |
|
|
|
498 |
return NULL;
|
|
|
499 |
} /* handleIo_duplicate */
|
|
|
500 |
|
|
|
501 |
static int handleIo_flush(PHYSFS_Io *io)
|
|
|
502 |
{
|
|
|
503 |
return PHYSFS_flush((PHYSFS_File *) io->opaque);
|
|
|
504 |
} /* handleIo_flush */
|
|
|
505 |
|
|
|
506 |
static void handleIo_destroy(PHYSFS_Io *io)
|
|
|
507 |
{
|
|
|
508 |
if (io->opaque != NULL)
|
|
|
509 |
PHYSFS_close((PHYSFS_File *) io->opaque);
|
|
|
510 |
allocator.Free(io);
|
|
|
511 |
} /* handleIo_destroy */
|
|
|
512 |
|
|
|
513 |
static const PHYSFS_Io __PHYSFS_handleIoInterface =
|
|
|
514 |
{
|
|
|
515 |
CURRENT_PHYSFS_IO_API_VERSION, NULL,
|
|
|
516 |
handleIo_read,
|
|
|
517 |
handleIo_write,
|
|
|
518 |
handleIo_seek,
|
|
|
519 |
handleIo_tell,
|
|
|
520 |
handleIo_length,
|
|
|
521 |
handleIo_duplicate,
|
|
|
522 |
handleIo_flush,
|
|
|
523 |
handleIo_destroy
|
|
|
524 |
};
|
|
|
525 |
|
|
|
526 |
static PHYSFS_Io *__PHYSFS_createHandleIo(PHYSFS_File *f)
|
|
|
527 |
{
|
|
|
528 |
PHYSFS_Io *io = (PHYSFS_Io *) allocator.Malloc(sizeof (PHYSFS_Io));
|
|
|
529 |
BAIL_IF_MACRO(!io, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
530 |
memcpy(io, &__PHYSFS_handleIoInterface, sizeof (*io));
|
|
|
531 |
io->opaque = f;
|
|
|
532 |
return io;
|
|
|
533 |
} /* __PHYSFS_createHandleIo */
|
|
|
534 |
|
|
|
535 |
|
|
|
536 |
/* functions ... */
|
|
|
537 |
|
|
|
538 |
typedef struct
|
|
|
539 |
{
|
|
|
540 |
char **list;
|
|
|
541 |
PHYSFS_uint32 size;
|
|
|
542 |
PHYSFS_ErrorCode errcode;
|
|
|
543 |
} EnumStringListCallbackData;
|
|
|
544 |
|
|
|
545 |
static void enumStringListCallback(void *data, const char *str)
|
|
|
546 |
{
|
|
|
547 |
void *ptr;
|
|
|
548 |
char *newstr;
|
|
|
549 |
EnumStringListCallbackData *pecd = (EnumStringListCallbackData *) data;
|
|
|
550 |
|
|
|
551 |
if (pecd->errcode)
|
|
|
552 |
return;
|
|
|
553 |
|
|
|
554 |
ptr = allocator.Realloc(pecd->list, (pecd->size + 2) * sizeof (char *));
|
|
|
555 |
newstr = (char *) allocator.Malloc(strlen(str) + 1);
|
|
|
556 |
if (ptr != NULL)
|
|
|
557 |
pecd->list = (char **) ptr;
|
|
|
558 |
|
|
|
559 |
if ((ptr == NULL) || (newstr == NULL))
|
|
|
560 |
{
|
|
|
561 |
pecd->errcode = PHYSFS_ERR_OUT_OF_MEMORY;
|
|
|
562 |
pecd->list[pecd->size] = NULL;
|
|
|
563 |
PHYSFS_freeList(pecd->list);
|
|
|
564 |
return;
|
|
|
565 |
} /* if */
|
|
|
566 |
|
|
|
567 |
strcpy(newstr, str);
|
|
|
568 |
pecd->list[pecd->size] = newstr;
|
|
|
569 |
pecd->size++;
|
|
|
570 |
} /* enumStringListCallback */
|
|
|
571 |
|
|
|
572 |
|
|
|
573 |
static char **doEnumStringList(void (*func)(PHYSFS_StringCallback, void *))
|
|
|
574 |
{
|
|
|
575 |
EnumStringListCallbackData ecd;
|
|
|
576 |
memset(&ecd, '\0', sizeof (ecd));
|
|
|
577 |
ecd.list = (char **) allocator.Malloc(sizeof (char *));
|
|
|
578 |
BAIL_IF_MACRO(!ecd.list, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
579 |
func(enumStringListCallback, &ecd);
|
|
|
580 |
|
|
|
581 |
if (ecd.errcode)
|
|
|
582 |
{
|
|
|
583 |
__PHYSFS_setError(ecd.errcode);
|
|
|
584 |
return NULL;
|
|
|
585 |
} /* if */
|
|
|
586 |
|
|
|
587 |
ecd.list[ecd.size] = NULL;
|
|
|
588 |
return ecd.list;
|
|
|
589 |
} /* doEnumStringList */
|
|
|
590 |
|
|
|
591 |
|
|
|
592 |
static void __PHYSFS_bubble_sort(void *a, size_t lo, size_t hi,
|
|
|
593 |
int (*cmpfn)(void *, size_t, size_t),
|
|
|
594 |
void (*swapfn)(void *, size_t, size_t))
|
|
|
595 |
{
|
|
|
596 |
size_t i;
|
|
|
597 |
int sorted;
|
|
|
598 |
|
|
|
599 |
do
|
|
|
600 |
{
|
|
|
601 |
sorted = 1;
|
|
|
602 |
for (i = lo; i < hi; i++)
|
|
|
603 |
{
|
|
|
604 |
if (cmpfn(a, i, i + 1) > 0)
|
|
|
605 |
{
|
|
|
606 |
swapfn(a, i, i + 1);
|
|
|
607 |
sorted = 0;
|
|
|
608 |
} /* if */
|
|
|
609 |
} /* for */
|
|
|
610 |
} while (!sorted);
|
|
|
611 |
} /* __PHYSFS_bubble_sort */
|
|
|
612 |
|
|
|
613 |
|
|
|
614 |
static void __PHYSFS_quick_sort(void *a, size_t lo, size_t hi,
|
|
|
615 |
int (*cmpfn)(void *, size_t, size_t),
|
|
|
616 |
void (*swapfn)(void *, size_t, size_t))
|
|
|
617 |
{
|
|
|
618 |
size_t i;
|
|
|
619 |
size_t j;
|
|
|
620 |
size_t v;
|
|
|
621 |
|
|
|
622 |
if ((hi - lo) <= PHYSFS_QUICKSORT_THRESHOLD)
|
|
|
623 |
__PHYSFS_bubble_sort(a, lo, hi, cmpfn, swapfn);
|
|
|
624 |
else
|
|
|
625 |
{
|
|
|
626 |
i = (hi + lo) / 2;
|
|
|
627 |
|
|
|
628 |
if (cmpfn(a, lo, i) > 0) swapfn(a, lo, i);
|
|
|
629 |
if (cmpfn(a, lo, hi) > 0) swapfn(a, lo, hi);
|
|
|
630 |
if (cmpfn(a, i, hi) > 0) swapfn(a, i, hi);
|
|
|
631 |
|
|
|
632 |
j = hi - 1;
|
|
|
633 |
swapfn(a, i, j);
|
|
|
634 |
i = lo;
|
|
|
635 |
v = j;
|
|
|
636 |
while (1)
|
|
|
637 |
{
|
|
|
638 |
while(cmpfn(a, ++i, v) < 0) { /* do nothing */ }
|
|
|
639 |
while(cmpfn(a, --j, v) > 0) { /* do nothing */ }
|
|
|
640 |
if (j < i)
|
|
|
641 |
break;
|
|
|
642 |
swapfn(a, i, j);
|
|
|
643 |
} /* while */
|
|
|
644 |
if (i != (hi-1))
|
|
|
645 |
swapfn(a, i, hi-1);
|
|
|
646 |
__PHYSFS_quick_sort(a, lo, j, cmpfn, swapfn);
|
|
|
647 |
__PHYSFS_quick_sort(a, i+1, hi, cmpfn, swapfn);
|
|
|
648 |
} /* else */
|
|
|
649 |
} /* __PHYSFS_quick_sort */
|
|
|
650 |
|
|
|
651 |
|
|
|
652 |
void __PHYSFS_sort(void *entries, size_t max,
|
|
|
653 |
int (*cmpfn)(void *, size_t, size_t),
|
|
|
654 |
void (*swapfn)(void *, size_t, size_t))
|
|
|
655 |
{
|
|
|
656 |
/*
|
|
|
657 |
* Quicksort w/ Bubblesort fallback algorithm inspired by code from here:
|
|
|
658 |
* http://www.cs.ubc.ca/spider/harrison/Java/sorting-demo.html
|
|
|
659 |
*/
|
|
|
660 |
if (max > 0)
|
|
|
661 |
__PHYSFS_quick_sort(entries, 0, max - 1, cmpfn, swapfn);
|
|
|
662 |
} /* __PHYSFS_sort */
|
|
|
663 |
|
|
|
664 |
|
|
|
665 |
static ErrState *findErrorForCurrentThread(void)
|
|
|
666 |
{
|
|
|
667 |
ErrState *i;
|
|
|
668 |
void *tid;
|
|
|
669 |
|
|
|
670 |
if (errorLock != NULL)
|
|
|
671 |
__PHYSFS_platformGrabMutex(errorLock);
|
|
|
672 |
|
|
|
673 |
if (errorStates != NULL)
|
|
|
674 |
{
|
|
|
675 |
tid = __PHYSFS_platformGetThreadID();
|
|
|
676 |
|
|
|
677 |
for (i = errorStates; i != NULL; i = i->next)
|
|
|
678 |
{
|
|
|
679 |
if (i->tid == tid)
|
|
|
680 |
{
|
|
|
681 |
if (errorLock != NULL)
|
|
|
682 |
__PHYSFS_platformReleaseMutex(errorLock);
|
|
|
683 |
return i;
|
|
|
684 |
} /* if */
|
|
|
685 |
} /* for */
|
|
|
686 |
} /* if */
|
|
|
687 |
|
|
|
688 |
if (errorLock != NULL)
|
|
|
689 |
__PHYSFS_platformReleaseMutex(errorLock);
|
|
|
690 |
|
|
|
691 |
return NULL; /* no error available. */
|
|
|
692 |
} /* findErrorForCurrentThread */
|
|
|
693 |
|
|
|
694 |
|
|
|
695 |
void __PHYSFS_setError(const PHYSFS_ErrorCode errcode)
|
|
|
696 |
{
|
|
|
697 |
ErrState *err;
|
|
|
698 |
|
|
|
699 |
if (!errcode)
|
|
|
700 |
return;
|
|
|
701 |
|
|
|
702 |
err = findErrorForCurrentThread();
|
|
|
703 |
if (err == NULL)
|
|
|
704 |
{
|
|
|
705 |
err = (ErrState *) allocator.Malloc(sizeof (ErrState));
|
|
|
706 |
if (err == NULL)
|
|
|
707 |
return; /* uhh...? */
|
|
|
708 |
|
|
|
709 |
memset(err, '\0', sizeof (ErrState));
|
|
|
710 |
err->tid = __PHYSFS_platformGetThreadID();
|
|
|
711 |
|
|
|
712 |
if (errorLock != NULL)
|
|
|
713 |
__PHYSFS_platformGrabMutex(errorLock);
|
|
|
714 |
|
|
|
715 |
err->next = errorStates;
|
|
|
716 |
errorStates = err;
|
|
|
717 |
|
|
|
718 |
if (errorLock != NULL)
|
|
|
719 |
__PHYSFS_platformReleaseMutex(errorLock);
|
|
|
720 |
} /* if */
|
|
|
721 |
|
|
|
722 |
err->code = errcode;
|
|
|
723 |
} /* __PHYSFS_setError */
|
|
|
724 |
|
|
|
725 |
|
|
|
726 |
PHYSFS_ErrorCode PHYSFS_getLastErrorCode(void)
|
|
|
727 |
{
|
|
|
728 |
ErrState *err = findErrorForCurrentThread();
|
|
|
729 |
const PHYSFS_ErrorCode retval = (err) ? err->code : PHYSFS_ERR_OK;
|
|
|
730 |
if (err)
|
|
|
731 |
err->code = PHYSFS_ERR_OK;
|
|
|
732 |
return retval;
|
|
|
733 |
} /* PHYSFS_getLastErrorCode */
|
|
|
734 |
|
|
|
735 |
|
|
|
736 |
PHYSFS_DECL const char *PHYSFS_getErrorByCode(PHYSFS_ErrorCode code)
|
|
|
737 |
{
|
|
|
738 |
switch (code)
|
|
|
739 |
{
|
|
|
740 |
case PHYSFS_ERR_OK: return "no error";
|
|
|
741 |
case PHYSFS_ERR_OTHER_ERROR: return "unknown error";
|
|
|
742 |
case PHYSFS_ERR_OUT_OF_MEMORY: return "out of memory";
|
|
|
743 |
case PHYSFS_ERR_NOT_INITIALIZED: return "not initialized";
|
|
|
744 |
case PHYSFS_ERR_IS_INITIALIZED: return "already initialized";
|
|
|
745 |
case PHYSFS_ERR_ARGV0_IS_NULL: return "argv[0] is NULL";
|
|
|
746 |
case PHYSFS_ERR_UNSUPPORTED: return "unsupported";
|
|
|
747 |
case PHYSFS_ERR_PAST_EOF: return "past end of file";
|
|
|
748 |
case PHYSFS_ERR_FILES_STILL_OPEN: return "files still open";
|
|
|
749 |
case PHYSFS_ERR_INVALID_ARGUMENT: return "invalid argument";
|
|
|
750 |
case PHYSFS_ERR_NOT_MOUNTED: return "not mounted";
|
|
|
751 |
case PHYSFS_ERR_NO_SUCH_PATH: return "no such path";
|
|
|
752 |
case PHYSFS_ERR_SYMLINK_FORBIDDEN: return "symlinks are forbidden";
|
|
|
753 |
case PHYSFS_ERR_NO_WRITE_DIR: return "write directory is not set";
|
|
|
754 |
case PHYSFS_ERR_OPEN_FOR_READING: return "file open for reading";
|
|
|
755 |
case PHYSFS_ERR_OPEN_FOR_WRITING: return "file open for writing";
|
|
|
756 |
case PHYSFS_ERR_NOT_A_FILE: return "not a file";
|
|
|
757 |
case PHYSFS_ERR_READ_ONLY: return "read-only filesystem";
|
|
|
758 |
case PHYSFS_ERR_CORRUPT: return "corrupted";
|
|
|
759 |
case PHYSFS_ERR_SYMLINK_LOOP: return "infinite symbolic link loop";
|
|
|
760 |
case PHYSFS_ERR_IO: return "i/o error";
|
|
|
761 |
case PHYSFS_ERR_PERMISSION: return "permission denied";
|
|
|
762 |
case PHYSFS_ERR_NO_SPACE: return "no space available for writing";
|
|
|
763 |
case PHYSFS_ERR_BAD_FILENAME: return "filename is illegal or insecure";
|
|
|
764 |
case PHYSFS_ERR_BUSY: return "tried to modify a file the OS needs";
|
|
|
765 |
case PHYSFS_ERR_DIR_NOT_EMPTY: return "directory isn't empty";
|
|
|
766 |
case PHYSFS_ERR_OS_ERROR: return "OS reported an error";
|
|
|
767 |
} /* switch */
|
|
|
768 |
|
|
|
769 |
return NULL; /* don't know this error code. */
|
|
|
770 |
} /* PHYSFS_getErrorByCode */
|
|
|
771 |
|
|
|
772 |
|
|
|
773 |
void PHYSFS_setErrorCode(PHYSFS_ErrorCode code)
|
|
|
774 |
{
|
|
|
775 |
__PHYSFS_setError(code);
|
|
|
776 |
} /* PHYSFS_setErrorCode */
|
|
|
777 |
|
|
|
778 |
|
|
|
779 |
const char *PHYSFS_getLastError(void)
|
|
|
780 |
{
|
|
|
781 |
const PHYSFS_ErrorCode err = PHYSFS_getLastErrorCode();
|
|
|
782 |
return (err) ? PHYSFS_getErrorByCode(err) : NULL;
|
|
|
783 |
} /* PHYSFS_getLastError */
|
|
|
784 |
|
|
|
785 |
|
|
|
786 |
/* MAKE SURE that errorLock is held before calling this! */
|
|
|
787 |
static void freeErrorStates(void)
|
|
|
788 |
{
|
|
|
789 |
ErrState *i;
|
|
|
790 |
ErrState *next;
|
|
|
791 |
|
|
|
792 |
for (i = errorStates; i != NULL; i = next)
|
|
|
793 |
{
|
|
|
794 |
next = i->next;
|
|
|
795 |
allocator.Free(i);
|
|
|
796 |
} /* for */
|
|
|
797 |
|
|
|
798 |
errorStates = NULL;
|
|
|
799 |
} /* freeErrorStates */
|
|
|
800 |
|
|
|
801 |
|
|
|
802 |
void PHYSFS_getLinkedVersion(PHYSFS_Version *ver)
|
|
|
803 |
{
|
|
|
804 |
if (ver != NULL)
|
|
|
805 |
{
|
|
|
806 |
ver->major = PHYSFS_VER_MAJOR;
|
|
|
807 |
ver->minor = PHYSFS_VER_MINOR;
|
|
|
808 |
ver->patch = PHYSFS_VER_PATCH;
|
|
|
809 |
} /* if */
|
|
|
810 |
} /* PHYSFS_getLinkedVersion */
|
|
|
811 |
|
|
|
812 |
|
|
|
813 |
static const char *find_filename_extension(const char *fname)
|
|
|
814 |
{
|
|
|
815 |
const char *retval = NULL;
|
|
|
816 |
if (fname != NULL)
|
|
|
817 |
{
|
|
|
818 |
const char *p = strchr(fname, '.');
|
|
|
819 |
retval = p;
|
|
|
820 |
|
|
|
821 |
while (p != NULL)
|
|
|
822 |
{
|
|
|
823 |
p = strchr(p + 1, '.');
|
|
|
824 |
if (p != NULL)
|
|
|
825 |
retval = p;
|
|
|
826 |
} /* while */
|
|
|
827 |
|
|
|
828 |
if (retval != NULL)
|
|
|
829 |
retval++; /* skip '.' */
|
|
|
830 |
} /* if */
|
|
|
831 |
|
|
|
832 |
return retval;
|
|
|
833 |
} /* find_filename_extension */
|
|
|
834 |
|
|
|
835 |
|
|
|
836 |
static DirHandle *tryOpenDir(PHYSFS_Io *io, const PHYSFS_Archiver *funcs,
|
|
|
837 |
const char *d, int forWriting)
|
|
|
838 |
{
|
|
|
839 |
DirHandle *retval = NULL;
|
|
|
840 |
void *opaque = NULL;
|
|
|
841 |
|
|
|
842 |
if (io != NULL)
|
|
|
843 |
BAIL_IF_MACRO(!io->seek(io, 0), ERRPASS, NULL);
|
|
|
844 |
|
|
|
845 |
opaque = funcs->openArchive(io, d, forWriting);
|
|
|
846 |
if (opaque != NULL)
|
|
|
847 |
{
|
|
|
848 |
retval = (DirHandle *) allocator.Malloc(sizeof (DirHandle));
|
|
|
849 |
if (retval == NULL)
|
|
|
850 |
funcs->closeArchive(opaque);
|
|
|
851 |
else
|
|
|
852 |
{
|
|
|
853 |
memset(retval, '\0', sizeof (DirHandle));
|
|
|
854 |
retval->mountPoint = NULL;
|
|
|
855 |
retval->funcs = funcs;
|
|
|
856 |
retval->opaque = opaque;
|
|
|
857 |
} /* else */
|
|
|
858 |
} /* if */
|
|
|
859 |
|
|
|
860 |
return retval;
|
|
|
861 |
} /* tryOpenDir */
|
|
|
862 |
|
|
|
863 |
|
|
|
864 |
static DirHandle *openDirectory(PHYSFS_Io *io, const char *d, int forWriting)
|
|
|
865 |
{
|
|
|
866 |
DirHandle *retval = NULL;
|
|
|
867 |
const PHYSFS_Archiver **i;
|
|
|
868 |
const char *ext;
|
|
|
869 |
|
|
|
870 |
assert((io != NULL) || (d != NULL));
|
|
|
871 |
|
|
|
872 |
if (io == NULL)
|
|
|
873 |
{
|
|
|
874 |
/* DIR gets first shot (unlike the rest, it doesn't deal with files). */
|
|
|
875 |
retval = tryOpenDir(io, &__PHYSFS_Archiver_DIR, d, forWriting);
|
|
|
876 |
if (retval != NULL)
|
|
|
877 |
return retval;
|
|
|
878 |
|
|
|
879 |
io = __PHYSFS_createNativeIo(d, forWriting ? 'w' : 'r');
|
|
|
880 |
BAIL_IF_MACRO(!io, ERRPASS, 0);
|
|
|
881 |
} /* if */
|
|
|
882 |
|
|
|
883 |
ext = find_filename_extension(d);
|
|
|
884 |
if (ext != NULL)
|
|
|
885 |
{
|
|
|
886 |
/* Look for archivers with matching file extensions first... */
|
|
|
887 |
for (i = archivers; (*i != NULL) && (retval == NULL); i++)
|
|
|
888 |
{
|
|
|
889 |
if (__PHYSFS_stricmpASCII(ext, (*i)->info.extension) == 0)
|
|
|
890 |
retval = tryOpenDir(io, *i, d, forWriting);
|
|
|
891 |
} /* for */
|
|
|
892 |
|
|
|
893 |
/* failing an exact file extension match, try all the others... */
|
|
|
894 |
for (i = archivers; (*i != NULL) && (retval == NULL); i++)
|
|
|
895 |
{
|
|
|
896 |
if (__PHYSFS_stricmpASCII(ext, (*i)->info.extension) != 0)
|
|
|
897 |
retval = tryOpenDir(io, *i, d, forWriting);
|
|
|
898 |
} /* for */
|
|
|
899 |
} /* if */
|
|
|
900 |
|
|
|
901 |
else /* no extension? Try them all. */
|
|
|
902 |
{
|
|
|
903 |
for (i = archivers; (*i != NULL) && (retval == NULL); i++)
|
|
|
904 |
retval = tryOpenDir(io, *i, d, forWriting);
|
|
|
905 |
} /* else */
|
|
|
906 |
|
|
|
907 |
BAIL_IF_MACRO(!retval, PHYSFS_ERR_UNSUPPORTED, NULL);
|
|
|
908 |
return retval;
|
|
|
909 |
} /* openDirectory */
|
|
|
910 |
|
|
|
911 |
|
|
|
912 |
/*
|
|
|
913 |
* Make a platform-independent path string sane. Doesn't actually check the
|
|
|
914 |
* file hierarchy, it just cleans up the string.
|
|
|
915 |
* (dst) must be a buffer at least as big as (src), as this is where the
|
|
|
916 |
* cleaned up string is deposited.
|
|
|
917 |
* If there are illegal bits in the path (".." entries, etc) then we
|
|
|
918 |
* return zero and (dst) is undefined. Non-zero if the path was sanitized.
|
|
|
919 |
*/
|
|
|
920 |
static int sanitizePlatformIndependentPath(const char *src, char *dst)
|
|
|
921 |
{
|
|
|
922 |
char *prev;
|
|
|
923 |
char ch;
|
|
|
924 |
|
|
|
925 |
while (*src == '/') /* skip initial '/' chars... */
|
|
|
926 |
src++;
|
|
|
927 |
|
|
|
928 |
prev = dst;
|
|
|
929 |
do
|
|
|
930 |
{
|
|
|
931 |
ch = *(src++);
|
|
|
932 |
|
|
|
933 |
if ((ch == ':') || (ch == '\\')) /* illegal chars in a physfs path. */
|
|
|
934 |
BAIL_MACRO(PHYSFS_ERR_BAD_FILENAME, 0);
|
|
|
935 |
|
|
|
936 |
if (ch == '/') /* path separator. */
|
|
|
937 |
{
|
|
|
938 |
*dst = '\0'; /* "." and ".." are illegal pathnames. */
|
|
|
939 |
if ((strcmp(prev, ".") == 0) || (strcmp(prev, "..") == 0))
|
|
|
940 |
BAIL_MACRO(PHYSFS_ERR_BAD_FILENAME, 0);
|
|
|
941 |
|
|
|
942 |
while (*src == '/') /* chop out doubles... */
|
|
|
943 |
src++;
|
|
|
944 |
|
|
|
945 |
if (*src == '\0') /* ends with a pathsep? */
|
|
|
946 |
break; /* we're done, don't add final pathsep to dst. */
|
|
|
947 |
|
|
|
948 |
prev = dst + 1;
|
|
|
949 |
} /* if */
|
|
|
950 |
|
|
|
951 |
*(dst++) = ch;
|
|
|
952 |
} while (ch != '\0');
|
|
|
953 |
|
|
|
954 |
return 1;
|
|
|
955 |
} /* sanitizePlatformIndependentPath */
|
|
|
956 |
|
|
|
957 |
|
|
|
958 |
/*
|
|
|
959 |
* Figure out if (fname) is part of (h)'s mountpoint. (fname) must be an
|
|
|
960 |
* output from sanitizePlatformIndependentPath(), so that it is in a known
|
|
|
961 |
* state.
|
|
|
962 |
*
|
|
|
963 |
* This only finds legitimate segments of a mountpoint. If the mountpoint is
|
|
|
964 |
* "/a/b/c" and (fname) is "/a/b/c", "/", or "/a/b/c/d", then the results are
|
|
|
965 |
* all zero. "/a/b" will succeed, though.
|
|
|
966 |
*/
|
|
|
967 |
static int partOfMountPoint(DirHandle *h, char *fname)
|
|
|
968 |
{
|
|
|
969 |
/* !!! FIXME: This code feels gross. */
|
|
|
970 |
int rc;
|
|
|
971 |
size_t len, mntpntlen;
|
|
|
972 |
|
|
|
973 |
if (h->mountPoint == NULL)
|
|
|
974 |
return 0;
|
|
|
975 |
else if (*fname == '\0')
|
|
|
976 |
return 1;
|
|
|
977 |
|
|
|
978 |
len = strlen(fname);
|
|
|
979 |
mntpntlen = strlen(h->mountPoint);
|
|
|
980 |
if (len > mntpntlen) /* can't be a subset of mountpoint. */
|
|
|
981 |
return 0;
|
|
|
982 |
|
|
|
983 |
/* if true, must be not a match or a complete match, but not a subset. */
|
|
|
984 |
if ((len + 1) == mntpntlen)
|
|
|
985 |
return 0;
|
|
|
986 |
|
|
|
987 |
rc = strncmp(fname, h->mountPoint, len); /* !!! FIXME: case insensitive? */
|
|
|
988 |
if (rc != 0)
|
|
|
989 |
return 0; /* not a match. */
|
|
|
990 |
|
|
|
991 |
/* make sure /a/b matches /a/b/ and not /a/bc ... */
|
|
|
992 |
return h->mountPoint[len] == '/';
|
|
|
993 |
} /* partOfMountPoint */
|
|
|
994 |
|
|
|
995 |
|
|
|
996 |
static DirHandle *createDirHandle(PHYSFS_Io *io, const char *newDir,
|
|
|
997 |
const char *mountPoint, int forWriting)
|
|
|
998 |
{
|
|
|
999 |
DirHandle *dirHandle = NULL;
|
|
|
1000 |
char *tmpmntpnt = NULL;
|
|
|
1001 |
|
|
|
1002 |
if (mountPoint != NULL)
|
|
|
1003 |
{
|
|
|
1004 |
const size_t len = strlen(mountPoint) + 1;
|
|
|
1005 |
tmpmntpnt = (char *) __PHYSFS_smallAlloc(len);
|
|
|
1006 |
GOTO_IF_MACRO(!tmpmntpnt, PHYSFS_ERR_OUT_OF_MEMORY, badDirHandle);
|
|
|
1007 |
if (!sanitizePlatformIndependentPath(mountPoint, tmpmntpnt))
|
|
|
1008 |
goto badDirHandle;
|
|
|
1009 |
mountPoint = tmpmntpnt; /* sanitized version. */
|
|
|
1010 |
} /* if */
|
|
|
1011 |
|
|
|
1012 |
dirHandle = openDirectory(io, newDir, forWriting);
|
|
|
1013 |
GOTO_IF_MACRO(!dirHandle, ERRPASS, badDirHandle);
|
|
|
1014 |
|
|
|
1015 |
if (newDir == NULL)
|
|
|
1016 |
dirHandle->dirName = NULL;
|
|
|
1017 |
else
|
|
|
1018 |
{
|
|
|
1019 |
dirHandle->dirName = (char *) allocator.Malloc(strlen(newDir) + 1);
|
|
|
1020 |
if (!dirHandle->dirName)
|
|
|
1021 |
GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, badDirHandle);
|
|
|
1022 |
strcpy(dirHandle->dirName, newDir);
|
|
|
1023 |
} /* else */
|
|
|
1024 |
|
|
|
1025 |
if ((mountPoint != NULL) && (*mountPoint != '\0'))
|
|
|
1026 |
{
|
|
|
1027 |
dirHandle->mountPoint = (char *)allocator.Malloc(strlen(mountPoint)+2);
|
|
|
1028 |
if (!dirHandle->mountPoint)
|
|
|
1029 |
GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, badDirHandle);
|
|
|
1030 |
strcpy(dirHandle->mountPoint, mountPoint);
|
|
|
1031 |
strcat(dirHandle->mountPoint, "/");
|
|
|
1032 |
} /* if */
|
|
|
1033 |
|
|
|
1034 |
__PHYSFS_smallFree(tmpmntpnt);
|
|
|
1035 |
return dirHandle;
|
|
|
1036 |
|
|
|
1037 |
badDirHandle:
|
|
|
1038 |
if (dirHandle != NULL)
|
|
|
1039 |
{
|
|
|
1040 |
dirHandle->funcs->closeArchive(dirHandle->opaque);
|
|
|
1041 |
allocator.Free(dirHandle->dirName);
|
|
|
1042 |
allocator.Free(dirHandle->mountPoint);
|
|
|
1043 |
allocator.Free(dirHandle);
|
|
|
1044 |
} /* if */
|
|
|
1045 |
|
|
|
1046 |
__PHYSFS_smallFree(tmpmntpnt);
|
|
|
1047 |
return NULL;
|
|
|
1048 |
} /* createDirHandle */
|
|
|
1049 |
|
|
|
1050 |
|
|
|
1051 |
/* MAKE SURE you've got the stateLock held before calling this! */
|
|
|
1052 |
static int freeDirHandle(DirHandle *dh, FileHandle *openList)
|
|
|
1053 |
{
|
|
|
1054 |
FileHandle *i;
|
|
|
1055 |
|
|
|
1056 |
if (dh == NULL)
|
|
|
1057 |
return 1;
|
|
|
1058 |
|
|
|
1059 |
for (i = openList; i != NULL; i = i->next)
|
|
|
1060 |
BAIL_IF_MACRO(i->dirHandle == dh, PHYSFS_ERR_FILES_STILL_OPEN, 0);
|
|
|
1061 |
|
|
|
1062 |
dh->funcs->closeArchive(dh->opaque);
|
|
|
1063 |
allocator.Free(dh->dirName);
|
|
|
1064 |
allocator.Free(dh->mountPoint);
|
|
|
1065 |
allocator.Free(dh);
|
|
|
1066 |
return 1;
|
|
|
1067 |
} /* freeDirHandle */
|
|
|
1068 |
|
|
|
1069 |
|
|
|
1070 |
static char *calculateBaseDir(const char *argv0)
|
|
|
1071 |
{
|
|
|
1072 |
const char dirsep = __PHYSFS_platformDirSeparator;
|
|
|
1073 |
char *retval = NULL;
|
|
|
1074 |
char *ptr = NULL;
|
|
|
1075 |
|
|
|
1076 |
/* Give the platform layer first shot at this. */
|
|
|
1077 |
retval = __PHYSFS_platformCalcBaseDir(argv0);
|
|
|
1078 |
if (retval != NULL)
|
|
|
1079 |
return retval;
|
|
|
1080 |
|
|
|
1081 |
/* We need argv0 to go on. */
|
|
|
1082 |
BAIL_IF_MACRO(argv0 == NULL, PHYSFS_ERR_ARGV0_IS_NULL, NULL);
|
|
|
1083 |
|
|
|
1084 |
ptr = strrchr(argv0, dirsep);
|
|
|
1085 |
if (ptr != NULL)
|
|
|
1086 |
{
|
|
|
1087 |
const size_t size = ((size_t) (ptr - argv0)) + 1;
|
|
|
1088 |
retval = (char *) allocator.Malloc(size + 1);
|
|
|
1089 |
BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
1090 |
memcpy(retval, argv0, size);
|
|
|
1091 |
retval[size] = '\0';
|
|
|
1092 |
return retval;
|
|
|
1093 |
} /* if */
|
|
|
1094 |
|
|
|
1095 |
/* argv0 wasn't helpful. */
|
|
|
1096 |
BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1097 |
} /* calculateBaseDir */
|
|
|
1098 |
|
|
|
1099 |
|
|
|
1100 |
static int initializeMutexes(void)
|
|
|
1101 |
{
|
|
|
1102 |
errorLock = __PHYSFS_platformCreateMutex();
|
|
|
1103 |
if (errorLock == NULL)
|
|
|
1104 |
goto initializeMutexes_failed;
|
|
|
1105 |
|
|
|
1106 |
stateLock = __PHYSFS_platformCreateMutex();
|
|
|
1107 |
if (stateLock == NULL)
|
|
|
1108 |
goto initializeMutexes_failed;
|
|
|
1109 |
|
|
|
1110 |
return 1; /* success. */
|
|
|
1111 |
|
|
|
1112 |
initializeMutexes_failed:
|
|
|
1113 |
if (errorLock != NULL)
|
|
|
1114 |
__PHYSFS_platformDestroyMutex(errorLock);
|
|
|
1115 |
|
|
|
1116 |
if (stateLock != NULL)
|
|
|
1117 |
__PHYSFS_platformDestroyMutex(stateLock);
|
|
|
1118 |
|
|
|
1119 |
errorLock = stateLock = NULL;
|
|
|
1120 |
return 0; /* failed. */
|
|
|
1121 |
} /* initializeMutexes */
|
|
|
1122 |
|
|
|
1123 |
|
|
|
1124 |
static void setDefaultAllocator(void);
|
|
|
1125 |
|
|
|
1126 |
static int initStaticArchivers(void)
|
|
|
1127 |
{
|
|
|
1128 |
const size_t numStaticArchivers = __PHYSFS_ARRAYLEN(staticArchivers);
|
|
|
1129 |
const size_t len = numStaticArchivers * sizeof (void *);
|
|
|
1130 |
size_t i;
|
|
|
1131 |
|
|
|
1132 |
assert(numStaticArchivers > 0); /* seriously, none at all?! */
|
|
|
1133 |
assert(staticArchivers[numStaticArchivers - 1] == NULL);
|
|
|
1134 |
|
|
|
1135 |
archiveInfo = (const PHYSFS_ArchiveInfo **) allocator.Malloc(len);
|
|
|
1136 |
BAIL_IF_MACRO(!archiveInfo, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
1137 |
archivers = (const PHYSFS_Archiver **) allocator.Malloc(len);
|
|
|
1138 |
BAIL_IF_MACRO(!archivers, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
1139 |
|
|
|
1140 |
for (i = 0; i < numStaticArchivers - 1; i++)
|
|
|
1141 |
archiveInfo[i] = &staticArchivers[i]->info;
|
|
|
1142 |
archiveInfo[numStaticArchivers - 1] = NULL;
|
|
|
1143 |
|
|
|
1144 |
memcpy(archivers, staticArchivers, len);
|
|
|
1145 |
|
|
|
1146 |
return 1;
|
|
|
1147 |
} /* initStaticArchivers */
|
|
|
1148 |
|
|
|
1149 |
|
|
|
1150 |
static int doDeinit(void);
|
|
|
1151 |
|
|
|
1152 |
int PHYSFS_init(const char *argv0)
|
|
|
1153 |
{
|
|
|
1154 |
BAIL_IF_MACRO(initialized, PHYSFS_ERR_IS_INITIALIZED, 0);
|
|
|
1155 |
|
|
|
1156 |
if (!externalAllocator)
|
|
|
1157 |
setDefaultAllocator();
|
|
|
1158 |
|
|
|
1159 |
if ((allocator.Init != NULL) && (!allocator.Init())) return 0;
|
|
|
1160 |
|
|
|
1161 |
if (!__PHYSFS_platformInit())
|
|
|
1162 |
{
|
|
|
1163 |
if (allocator.Deinit != NULL) allocator.Deinit();
|
|
|
1164 |
return 0;
|
|
|
1165 |
} /* if */
|
|
|
1166 |
|
|
|
1167 |
/* everything below here can be cleaned up safely by doDeinit(). */
|
|
|
1168 |
|
|
|
1169 |
if (!initializeMutexes()) goto initFailed;
|
|
|
1170 |
|
|
|
1171 |
baseDir = calculateBaseDir(argv0);
|
|
|
1172 |
if (!baseDir) goto initFailed;
|
|
|
1173 |
|
|
|
1174 |
userDir = __PHYSFS_platformCalcUserDir();
|
|
|
1175 |
if (!userDir) goto initFailed;
|
|
|
1176 |
|
|
|
1177 |
/* Platform layer is required to append a dirsep. */
|
|
|
1178 |
assert(baseDir[strlen(baseDir) - 1] == __PHYSFS_platformDirSeparator);
|
|
|
1179 |
assert(userDir[strlen(userDir) - 1] == __PHYSFS_platformDirSeparator);
|
|
|
1180 |
|
|
|
1181 |
if (!initStaticArchivers()) goto initFailed;
|
|
|
1182 |
|
|
|
1183 |
initialized = 1;
|
|
|
1184 |
|
|
|
1185 |
/* This makes sure that the error subsystem is initialized. */
|
|
|
1186 |
__PHYSFS_setError(PHYSFS_getLastErrorCode());
|
|
|
1187 |
|
|
|
1188 |
return 1;
|
|
|
1189 |
|
|
|
1190 |
initFailed:
|
|
|
1191 |
doDeinit();
|
|
|
1192 |
return 0;
|
|
|
1193 |
} /* PHYSFS_init */
|
|
|
1194 |
|
|
|
1195 |
|
|
|
1196 |
/* MAKE SURE you hold stateLock before calling this! */
|
|
|
1197 |
static int closeFileHandleList(FileHandle **list)
|
|
|
1198 |
{
|
|
|
1199 |
FileHandle *i;
|
|
|
1200 |
FileHandle *next = NULL;
|
|
|
1201 |
|
|
|
1202 |
for (i = *list; i != NULL; i = next)
|
|
|
1203 |
{
|
|
|
1204 |
PHYSFS_Io *io = i->io;
|
|
|
1205 |
next = i->next;
|
|
|
1206 |
|
|
|
1207 |
if (!io->flush(io))
|
|
|
1208 |
{
|
|
|
1209 |
*list = i;
|
|
|
1210 |
return 0;
|
|
|
1211 |
} /* if */
|
|
|
1212 |
|
|
|
1213 |
io->destroy(io);
|
|
|
1214 |
allocator.Free(i);
|
|
|
1215 |
} /* for */
|
|
|
1216 |
|
|
|
1217 |
*list = NULL;
|
|
|
1218 |
return 1;
|
|
|
1219 |
} /* closeFileHandleList */
|
|
|
1220 |
|
|
|
1221 |
|
|
|
1222 |
/* MAKE SURE you hold the stateLock before calling this! */
|
|
|
1223 |
static void freeSearchPath(void)
|
|
|
1224 |
{
|
|
|
1225 |
DirHandle *i;
|
|
|
1226 |
DirHandle *next = NULL;
|
|
|
1227 |
|
|
|
1228 |
closeFileHandleList(&openReadList);
|
|
|
1229 |
|
|
|
1230 |
if (searchPath != NULL)
|
|
|
1231 |
{
|
|
|
1232 |
for (i = searchPath; i != NULL; i = next)
|
|
|
1233 |
{
|
|
|
1234 |
next = i->next;
|
|
|
1235 |
freeDirHandle(i, openReadList);
|
|
|
1236 |
} /* for */
|
|
|
1237 |
searchPath = NULL;
|
|
|
1238 |
} /* if */
|
|
|
1239 |
} /* freeSearchPath */
|
|
|
1240 |
|
|
|
1241 |
|
|
|
1242 |
static int doDeinit(void)
|
|
|
1243 |
{
|
|
|
1244 |
BAIL_IF_MACRO(!__PHYSFS_platformDeinit(), ERRPASS, 0);
|
|
|
1245 |
|
|
|
1246 |
closeFileHandleList(&openWriteList);
|
|
|
1247 |
BAIL_IF_MACRO(!PHYSFS_setWriteDir(NULL), PHYSFS_ERR_FILES_STILL_OPEN, 0);
|
|
|
1248 |
|
|
|
1249 |
freeSearchPath();
|
|
|
1250 |
freeErrorStates();
|
|
|
1251 |
|
|
|
1252 |
if (baseDir != NULL)
|
|
|
1253 |
{
|
|
|
1254 |
allocator.Free(baseDir);
|
|
|
1255 |
baseDir = NULL;
|
|
|
1256 |
} /* if */
|
|
|
1257 |
|
|
|
1258 |
if (userDir != NULL)
|
|
|
1259 |
{
|
|
|
1260 |
allocator.Free(userDir);
|
|
|
1261 |
userDir = NULL;
|
|
|
1262 |
} /* if */
|
|
|
1263 |
|
|
|
1264 |
if (prefDir != NULL)
|
|
|
1265 |
{
|
|
|
1266 |
allocator.Free(prefDir);
|
|
|
1267 |
prefDir = NULL;
|
|
|
1268 |
} /* if */
|
|
|
1269 |
|
|
|
1270 |
if (archiveInfo != NULL)
|
|
|
1271 |
{
|
|
|
1272 |
allocator.Free(archiveInfo);
|
|
|
1273 |
archiveInfo = NULL;
|
|
|
1274 |
} /* if */
|
|
|
1275 |
|
|
|
1276 |
if (archivers != NULL)
|
|
|
1277 |
{
|
|
|
1278 |
allocator.Free(archivers);
|
|
|
1279 |
archivers = NULL;
|
|
|
1280 |
} /* if */
|
|
|
1281 |
|
|
|
1282 |
allowSymLinks = 0;
|
|
|
1283 |
initialized = 0;
|
|
|
1284 |
|
|
|
1285 |
if (errorLock) __PHYSFS_platformDestroyMutex(errorLock);
|
|
|
1286 |
if (stateLock) __PHYSFS_platformDestroyMutex(stateLock);
|
|
|
1287 |
|
|
|
1288 |
if (allocator.Deinit != NULL)
|
|
|
1289 |
allocator.Deinit();
|
|
|
1290 |
|
|
|
1291 |
errorLock = stateLock = NULL;
|
|
|
1292 |
return 1;
|
|
|
1293 |
} /* doDeinit */
|
|
|
1294 |
|
|
|
1295 |
|
|
|
1296 |
int PHYSFS_deinit(void)
|
|
|
1297 |
{
|
|
|
1298 |
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, 0);
|
|
|
1299 |
return doDeinit();
|
|
|
1300 |
} /* PHYSFS_deinit */
|
|
|
1301 |
|
|
|
1302 |
|
|
|
1303 |
int PHYSFS_isInit(void)
|
|
|
1304 |
{
|
|
|
1305 |
return initialized;
|
|
|
1306 |
} /* PHYSFS_isInit */
|
|
|
1307 |
|
|
|
1308 |
|
|
|
1309 |
const PHYSFS_ArchiveInfo **PHYSFS_supportedArchiveTypes(void)
|
|
|
1310 |
{
|
|
|
1311 |
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, NULL);
|
|
|
1312 |
return archiveInfo;
|
|
|
1313 |
} /* PHYSFS_supportedArchiveTypes */
|
|
|
1314 |
|
|
|
1315 |
|
|
|
1316 |
void PHYSFS_freeList(void *list)
|
|
|
1317 |
{
|
|
|
1318 |
void **i;
|
|
|
1319 |
if (list != NULL)
|
|
|
1320 |
{
|
|
|
1321 |
for (i = (void **) list; *i != NULL; i++)
|
|
|
1322 |
allocator.Free(*i);
|
|
|
1323 |
|
|
|
1324 |
allocator.Free(list);
|
|
|
1325 |
} /* if */
|
|
|
1326 |
} /* PHYSFS_freeList */
|
|
|
1327 |
|
|
|
1328 |
|
|
|
1329 |
const char *PHYSFS_getDirSeparator(void)
|
|
|
1330 |
{
|
|
|
1331 |
static char retval[2] = { __PHYSFS_platformDirSeparator, '\0' };
|
|
|
1332 |
return retval;
|
|
|
1333 |
} /* PHYSFS_getDirSeparator */
|
|
|
1334 |
|
|
|
1335 |
|
|
|
1336 |
char **PHYSFS_getCdRomDirs(void)
|
|
|
1337 |
{
|
|
|
1338 |
return doEnumStringList(__PHYSFS_platformDetectAvailableCDs);
|
|
|
1339 |
} /* PHYSFS_getCdRomDirs */
|
|
|
1340 |
|
|
|
1341 |
|
|
|
1342 |
void PHYSFS_getCdRomDirsCallback(PHYSFS_StringCallback callback, void *data)
|
|
|
1343 |
{
|
|
|
1344 |
__PHYSFS_platformDetectAvailableCDs(callback, data);
|
|
|
1345 |
} /* PHYSFS_getCdRomDirsCallback */
|
|
|
1346 |
|
|
|
1347 |
|
|
|
1348 |
const char *PHYSFS_getPrefDir(const char *org, const char *app)
|
|
|
1349 |
{
|
|
|
1350 |
const char dirsep = __PHYSFS_platformDirSeparator;
|
|
|
1351 |
PHYSFS_Stat statbuf;
|
|
|
1352 |
char *ptr = NULL;
|
|
|
1353 |
char *endstr = NULL;
|
|
|
1354 |
int exists = 0;
|
|
|
1355 |
|
|
|
1356 |
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, 0);
|
|
|
1357 |
BAIL_IF_MACRO(!org, PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1358 |
BAIL_IF_MACRO(*org == '\0', PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1359 |
BAIL_IF_MACRO(!app, PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1360 |
BAIL_IF_MACRO(*app == '\0', PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1361 |
|
|
|
1362 |
allocator.Free(prefDir);
|
|
|
1363 |
prefDir = __PHYSFS_platformCalcPrefDir(org, app);
|
|
|
1364 |
BAIL_IF_MACRO(!prefDir, ERRPASS, NULL);
|
|
|
1365 |
|
|
|
1366 |
assert(strlen(prefDir) > 0);
|
|
|
1367 |
endstr = prefDir + (strlen(prefDir) - 1);
|
|
|
1368 |
assert(*endstr == dirsep);
|
|
|
1369 |
*endstr = '\0'; /* mask out the final dirsep for now. */
|
|
|
1370 |
|
|
|
1371 |
if (!__PHYSFS_platformStat(prefDir, &exists, &statbuf))
|
|
|
1372 |
{
|
|
|
1373 |
for (ptr = strchr(prefDir, dirsep); ptr; ptr = strchr(ptr+1, dirsep))
|
|
|
1374 |
{
|
|
|
1375 |
*ptr = '\0';
|
|
|
1376 |
__PHYSFS_platformMkDir(prefDir);
|
|
|
1377 |
*ptr = dirsep;
|
|
|
1378 |
} /* for */
|
|
|
1379 |
|
|
|
1380 |
if (!__PHYSFS_platformMkDir(prefDir))
|
|
|
1381 |
{
|
|
|
1382 |
allocator.Free(prefDir);
|
|
|
1383 |
prefDir = NULL;
|
|
|
1384 |
} /* if */
|
|
|
1385 |
} /* if */
|
|
|
1386 |
|
|
|
1387 |
*endstr = dirsep; /* readd the final dirsep. */
|
|
|
1388 |
|
|
|
1389 |
return prefDir;
|
|
|
1390 |
} /* PHYSFS_getPrefDir */
|
|
|
1391 |
|
|
|
1392 |
|
|
|
1393 |
const char *PHYSFS_getBaseDir(void)
|
|
|
1394 |
{
|
|
|
1395 |
return baseDir; /* this is calculated in PHYSFS_init()... */
|
|
|
1396 |
} /* PHYSFS_getBaseDir */
|
|
|
1397 |
|
|
|
1398 |
|
|
|
1399 |
const char *__PHYSFS_getUserDir(void) /* not deprecated internal version. */
|
|
|
1400 |
{
|
|
|
1401 |
return userDir; /* this is calculated in PHYSFS_init()... */
|
|
|
1402 |
} /* __PHYSFS_getUserDir */
|
|
|
1403 |
|
|
|
1404 |
|
|
|
1405 |
const char *PHYSFS_getUserDir(void)
|
|
|
1406 |
{
|
|
|
1407 |
return __PHYSFS_getUserDir();
|
|
|
1408 |
} /* PHYSFS_getUserDir */
|
|
|
1409 |
|
|
|
1410 |
|
|
|
1411 |
const char *PHYSFS_getWriteDir(void)
|
|
|
1412 |
{
|
|
|
1413 |
const char *retval = NULL;
|
|
|
1414 |
|
|
|
1415 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1416 |
if (writeDir != NULL)
|
|
|
1417 |
retval = writeDir->dirName;
|
|
|
1418 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1419 |
|
|
|
1420 |
return retval;
|
|
|
1421 |
} /* PHYSFS_getWriteDir */
|
|
|
1422 |
|
|
|
1423 |
|
|
|
1424 |
int PHYSFS_setWriteDir(const char *newDir)
|
|
|
1425 |
{
|
|
|
1426 |
int retval = 1;
|
|
|
1427 |
|
|
|
1428 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1429 |
|
|
|
1430 |
if (writeDir != NULL)
|
|
|
1431 |
{
|
|
|
1432 |
BAIL_IF_MACRO_MUTEX(!freeDirHandle(writeDir, openWriteList), ERRPASS,
|
|
|
1433 |
stateLock, 0);
|
|
|
1434 |
writeDir = NULL;
|
|
|
1435 |
} /* if */
|
|
|
1436 |
|
|
|
1437 |
if (newDir != NULL)
|
|
|
1438 |
{
|
|
|
1439 |
/* !!! FIXME: PHYSFS_Io shouldn't be NULL */
|
|
|
1440 |
writeDir = createDirHandle(NULL, newDir, NULL, 1);
|
|
|
1441 |
retval = (writeDir != NULL);
|
|
|
1442 |
} /* if */
|
|
|
1443 |
|
|
|
1444 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1445 |
|
|
|
1446 |
return retval;
|
|
|
1447 |
} /* PHYSFS_setWriteDir */
|
|
|
1448 |
|
|
|
1449 |
|
|
|
1450 |
static int doMount(PHYSFS_Io *io, const char *fname,
|
|
|
1451 |
const char *mountPoint, int appendToPath)
|
|
|
1452 |
{
|
|
|
1453 |
DirHandle *dh;
|
|
|
1454 |
DirHandle *prev = NULL;
|
|
|
1455 |
DirHandle *i;
|
|
|
1456 |
|
|
|
1457 |
if (mountPoint == NULL)
|
|
|
1458 |
mountPoint = "/";
|
|
|
1459 |
|
|
|
1460 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1461 |
|
|
|
1462 |
if (fname != NULL)
|
|
|
1463 |
{
|
|
|
1464 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
1465 |
{
|
|
|
1466 |
/* already in search path? */
|
|
|
1467 |
if ((i->dirName != NULL) && (strcmp(fname, i->dirName) == 0))
|
|
|
1468 |
BAIL_MACRO_MUTEX(ERRPASS, stateLock, 1);
|
|
|
1469 |
prev = i;
|
|
|
1470 |
} /* for */
|
|
|
1471 |
} /* if */
|
|
|
1472 |
|
|
|
1473 |
dh = createDirHandle(io, fname, mountPoint, 0);
|
|
|
1474 |
BAIL_IF_MACRO_MUTEX(!dh, ERRPASS, stateLock, 0);
|
|
|
1475 |
|
|
|
1476 |
if (appendToPath)
|
|
|
1477 |
{
|
|
|
1478 |
if (prev == NULL)
|
|
|
1479 |
searchPath = dh;
|
|
|
1480 |
else
|
|
|
1481 |
prev->next = dh;
|
|
|
1482 |
} /* if */
|
|
|
1483 |
else
|
|
|
1484 |
{
|
|
|
1485 |
dh->next = searchPath;
|
|
|
1486 |
searchPath = dh;
|
|
|
1487 |
} /* else */
|
|
|
1488 |
|
|
|
1489 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1490 |
return 1;
|
|
|
1491 |
} /* doMount */
|
|
|
1492 |
|
|
|
1493 |
|
|
|
1494 |
int PHYSFS_mountIo(PHYSFS_Io *io, const char *fname,
|
|
|
1495 |
const char *mountPoint, int appendToPath)
|
|
|
1496 |
{
|
|
|
1497 |
BAIL_IF_MACRO(!io, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1498 |
BAIL_IF_MACRO(io->version != 0, PHYSFS_ERR_UNSUPPORTED, 0);
|
|
|
1499 |
return doMount(io, fname, mountPoint, appendToPath);
|
|
|
1500 |
} /* PHYSFS_mountIo */
|
|
|
1501 |
|
|
|
1502 |
|
|
|
1503 |
int PHYSFS_mountMemory(const void *buf, PHYSFS_uint64 len, void (*del)(void *),
|
|
|
1504 |
const char *fname, const char *mountPoint,
|
|
|
1505 |
int appendToPath)
|
|
|
1506 |
{
|
|
|
1507 |
int retval = 0;
|
|
|
1508 |
PHYSFS_Io *io = NULL;
|
|
|
1509 |
|
|
|
1510 |
BAIL_IF_MACRO(!buf, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1511 |
|
|
|
1512 |
io = __PHYSFS_createMemoryIo(buf, len, del);
|
|
|
1513 |
BAIL_IF_MACRO(!io, ERRPASS, 0);
|
|
|
1514 |
retval = doMount(io, fname, mountPoint, appendToPath);
|
|
|
1515 |
if (!retval)
|
|
|
1516 |
{
|
|
|
1517 |
/* docs say not to call (del) in case of failure, so cheat. */
|
|
|
1518 |
MemoryIoInfo *info = (MemoryIoInfo *) io->opaque;
|
|
|
1519 |
info->destruct = NULL;
|
|
|
1520 |
io->destroy(io);
|
|
|
1521 |
} /* if */
|
|
|
1522 |
|
|
|
1523 |
return retval;
|
|
|
1524 |
} /* PHYSFS_mountMemory */
|
|
|
1525 |
|
|
|
1526 |
|
|
|
1527 |
int PHYSFS_mountHandle(PHYSFS_File *file, const char *fname,
|
|
|
1528 |
const char *mountPoint, int appendToPath)
|
|
|
1529 |
{
|
|
|
1530 |
int retval = 0;
|
|
|
1531 |
PHYSFS_Io *io = NULL;
|
|
|
1532 |
|
|
|
1533 |
BAIL_IF_MACRO(file == NULL, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1534 |
|
|
|
1535 |
io = __PHYSFS_createHandleIo(file);
|
|
|
1536 |
BAIL_IF_MACRO(!io, ERRPASS, 0);
|
|
|
1537 |
retval = doMount(io, fname, mountPoint, appendToPath);
|
|
|
1538 |
if (!retval)
|
|
|
1539 |
{
|
|
|
1540 |
/* docs say not to destruct in case of failure, so cheat. */
|
|
|
1541 |
io->opaque = NULL;
|
|
|
1542 |
io->destroy(io);
|
|
|
1543 |
} /* if */
|
|
|
1544 |
|
|
|
1545 |
return retval;
|
|
|
1546 |
} /* PHYSFS_mountHandle */
|
|
|
1547 |
|
|
|
1548 |
|
|
|
1549 |
int PHYSFS_mount(const char *newDir, const char *mountPoint, int appendToPath)
|
|
|
1550 |
{
|
|
|
1551 |
BAIL_IF_MACRO(!newDir, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1552 |
return doMount(NULL, newDir, mountPoint, appendToPath);
|
|
|
1553 |
} /* PHYSFS_mount */
|
|
|
1554 |
|
|
|
1555 |
|
|
|
1556 |
int PHYSFS_addToSearchPath(const char *newDir, int appendToPath)
|
|
|
1557 |
{
|
|
|
1558 |
return doMount(NULL, newDir, NULL, appendToPath);
|
|
|
1559 |
} /* PHYSFS_addToSearchPath */
|
|
|
1560 |
|
|
|
1561 |
|
|
|
1562 |
int PHYSFS_removeFromSearchPath(const char *oldDir)
|
|
|
1563 |
{
|
|
|
1564 |
return PHYSFS_unmount(oldDir);
|
|
|
1565 |
} /* PHYSFS_removeFromSearchPath */
|
|
|
1566 |
|
|
|
1567 |
|
|
|
1568 |
int PHYSFS_unmount(const char *oldDir)
|
|
|
1569 |
{
|
|
|
1570 |
DirHandle *i;
|
|
|
1571 |
DirHandle *prev = NULL;
|
|
|
1572 |
DirHandle *next = NULL;
|
|
|
1573 |
|
|
|
1574 |
BAIL_IF_MACRO(oldDir == NULL, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1575 |
|
|
|
1576 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1577 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
1578 |
{
|
|
|
1579 |
if (strcmp(i->dirName, oldDir) == 0)
|
|
|
1580 |
{
|
|
|
1581 |
next = i->next;
|
|
|
1582 |
BAIL_IF_MACRO_MUTEX(!freeDirHandle(i, openReadList), ERRPASS,
|
|
|
1583 |
stateLock, 0);
|
|
|
1584 |
|
|
|
1585 |
if (prev == NULL)
|
|
|
1586 |
searchPath = next;
|
|
|
1587 |
else
|
|
|
1588 |
prev->next = next;
|
|
|
1589 |
|
|
|
1590 |
BAIL_MACRO_MUTEX(ERRPASS, stateLock, 1);
|
|
|
1591 |
} /* if */
|
|
|
1592 |
prev = i;
|
|
|
1593 |
} /* for */
|
|
|
1594 |
|
|
|
1595 |
BAIL_MACRO_MUTEX(PHYSFS_ERR_NOT_MOUNTED, stateLock, 0);
|
|
|
1596 |
} /* PHYSFS_unmount */
|
|
|
1597 |
|
|
|
1598 |
|
|
|
1599 |
char **PHYSFS_getSearchPath(void)
|
|
|
1600 |
{
|
|
|
1601 |
return doEnumStringList(PHYSFS_getSearchPathCallback);
|
|
|
1602 |
} /* PHYSFS_getSearchPath */
|
|
|
1603 |
|
|
|
1604 |
|
|
|
1605 |
const char *PHYSFS_getMountPoint(const char *dir)
|
|
|
1606 |
{
|
|
|
1607 |
DirHandle *i;
|
|
|
1608 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1609 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
1610 |
{
|
|
|
1611 |
if (strcmp(i->dirName, dir) == 0)
|
|
|
1612 |
{
|
|
|
1613 |
const char *retval = ((i->mountPoint) ? i->mountPoint : "/");
|
|
|
1614 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1615 |
return retval;
|
|
|
1616 |
} /* if */
|
|
|
1617 |
} /* for */
|
|
|
1618 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1619 |
|
|
|
1620 |
BAIL_MACRO(PHYSFS_ERR_NOT_MOUNTED, NULL);
|
|
|
1621 |
} /* PHYSFS_getMountPoint */
|
|
|
1622 |
|
|
|
1623 |
|
|
|
1624 |
void PHYSFS_getSearchPathCallback(PHYSFS_StringCallback callback, void *data)
|
|
|
1625 |
{
|
|
|
1626 |
DirHandle *i;
|
|
|
1627 |
|
|
|
1628 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1629 |
|
|
|
1630 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
1631 |
callback(data, i->dirName);
|
|
|
1632 |
|
|
|
1633 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1634 |
} /* PHYSFS_getSearchPathCallback */
|
|
|
1635 |
|
|
|
1636 |
|
|
|
1637 |
/* Split out to avoid stack allocation in a loop. */
|
|
|
1638 |
static void setSaneCfgAddPath(const char *i, const size_t l, const char *dirsep,
|
|
|
1639 |
int archivesFirst)
|
|
|
1640 |
{
|
|
|
1641 |
const char *d = PHYSFS_getRealDir(i);
|
|
|
1642 |
const size_t allocsize = strlen(d) + strlen(dirsep) + l + 1;
|
|
|
1643 |
char *str = (char *) __PHYSFS_smallAlloc(allocsize);
|
|
|
1644 |
if (str != NULL)
|
|
|
1645 |
{
|
|
|
1646 |
sprintf(str, "%s%s%s", d, dirsep, i);
|
|
|
1647 |
PHYSFS_mount(str, NULL, archivesFirst == 0);
|
|
|
1648 |
__PHYSFS_smallFree(str);
|
|
|
1649 |
} /* if */
|
|
|
1650 |
} /* setSaneCfgAddPath */
|
|
|
1651 |
|
|
|
1652 |
|
|
|
1653 |
int PHYSFS_setSaneConfig(const char *organization, const char *appName,
|
|
|
1654 |
const char *archiveExt, int includeCdRoms,
|
|
|
1655 |
int archivesFirst)
|
|
|
1656 |
{
|
|
|
1657 |
const char *dirsep = PHYSFS_getDirSeparator();
|
|
|
1658 |
const char *basedir;
|
|
|
1659 |
const char *prefdir;
|
|
|
1660 |
|
|
|
1661 |
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, 0);
|
|
|
1662 |
|
|
|
1663 |
prefdir = PHYSFS_getPrefDir(organization, appName);
|
|
|
1664 |
BAIL_IF_MACRO(!prefdir, ERRPASS, 0);
|
|
|
1665 |
|
|
|
1666 |
basedir = PHYSFS_getBaseDir();
|
|
|
1667 |
BAIL_IF_MACRO(!basedir, ERRPASS, 0);
|
|
|
1668 |
|
|
|
1669 |
BAIL_IF_MACRO(!PHYSFS_setWriteDir(prefdir), PHYSFS_ERR_NO_WRITE_DIR, 0);
|
|
|
1670 |
|
|
|
1671 |
/* Put write dir first in search path... */
|
|
|
1672 |
PHYSFS_mount(prefdir, NULL, 0);
|
|
|
1673 |
|
|
|
1674 |
/* Put base path on search path... */
|
|
|
1675 |
PHYSFS_mount(basedir, NULL, 1);
|
|
|
1676 |
|
|
|
1677 |
/* handle CD-ROMs... */
|
|
|
1678 |
if (includeCdRoms)
|
|
|
1679 |
{
|
|
|
1680 |
char **cds = PHYSFS_getCdRomDirs();
|
|
|
1681 |
char **i;
|
|
|
1682 |
for (i = cds; *i != NULL; i++)
|
|
|
1683 |
PHYSFS_mount(*i, NULL, 1);
|
|
|
1684 |
PHYSFS_freeList(cds);
|
|
|
1685 |
} /* if */
|
|
|
1686 |
|
|
|
1687 |
/* Root out archives, and add them to search path... */
|
|
|
1688 |
if (archiveExt != NULL)
|
|
|
1689 |
{
|
|
|
1690 |
char **rc = PHYSFS_enumerateFiles("/");
|
|
|
1691 |
char **i;
|
|
|
1692 |
size_t extlen = strlen(archiveExt);
|
|
|
1693 |
char *ext;
|
|
|
1694 |
|
|
|
1695 |
for (i = rc; *i != NULL; i++)
|
|
|
1696 |
{
|
|
|
1697 |
size_t l = strlen(*i);
|
|
|
1698 |
if ((l > extlen) && ((*i)[l - extlen - 1] == '.'))
|
|
|
1699 |
{
|
|
|
1700 |
ext = (*i) + (l - extlen);
|
|
|
1701 |
if (__PHYSFS_stricmpASCII(ext, archiveExt) == 0)
|
|
|
1702 |
setSaneCfgAddPath(*i, l, dirsep, archivesFirst);
|
|
|
1703 |
} /* if */
|
|
|
1704 |
} /* for */
|
|
|
1705 |
|
|
|
1706 |
PHYSFS_freeList(rc);
|
|
|
1707 |
} /* if */
|
|
|
1708 |
|
|
|
1709 |
return 1;
|
|
|
1710 |
} /* PHYSFS_setSaneConfig */
|
|
|
1711 |
|
|
|
1712 |
|
|
|
1713 |
void PHYSFS_permitSymbolicLinks(int allow)
|
|
|
1714 |
{
|
|
|
1715 |
allowSymLinks = allow;
|
|
|
1716 |
} /* PHYSFS_permitSymbolicLinks */
|
|
|
1717 |
|
|
|
1718 |
|
|
|
1719 |
int PHYSFS_symbolicLinksPermitted(void)
|
|
|
1720 |
{
|
|
|
1721 |
return allowSymLinks;
|
|
|
1722 |
} /* PHYSFS_symbolicLinksPermitted */
|
|
|
1723 |
|
|
|
1724 |
|
|
|
1725 |
/*
|
|
|
1726 |
* Verify that (fname) (in platform-independent notation), in relation
|
|
|
1727 |
* to (h) is secure. That means that each element of fname is checked
|
|
|
1728 |
* for symlinks (if they aren't permitted). This also allows for quick
|
|
|
1729 |
* rejection of files that exist outside an archive's mountpoint.
|
|
|
1730 |
*
|
|
|
1731 |
* With some exceptions (like PHYSFS_mkdir(), which builds multiple subdirs
|
|
|
1732 |
* at a time), you should always pass zero for "allowMissing" for efficiency.
|
|
|
1733 |
*
|
|
|
1734 |
* (fname) must point to an output from sanitizePlatformIndependentPath(),
|
|
|
1735 |
* since it will make sure that path names are in the right format for
|
|
|
1736 |
* passing certain checks. It will also do checks for "insecure" pathnames
|
|
|
1737 |
* like ".." which should be done once instead of once per archive. This also
|
|
|
1738 |
* gives us license to treat (fname) as scratch space in this function.
|
|
|
1739 |
*
|
|
|
1740 |
* Returns non-zero if string is safe, zero if there's a security issue.
|
|
|
1741 |
* PHYSFS_getLastError() will specify what was wrong. (*fname) will be
|
|
|
1742 |
* updated to point past any mount point elements so it is prepared to
|
|
|
1743 |
* be used with the archiver directly.
|
|
|
1744 |
*/
|
|
|
1745 |
static int verifyPath(DirHandle *h, char **_fname, int allowMissing)
|
|
|
1746 |
{
|
|
|
1747 |
char *fname = *_fname;
|
|
|
1748 |
int retval = 1;
|
|
|
1749 |
char *start;
|
|
|
1750 |
char *end;
|
|
|
1751 |
|
|
|
1752 |
if (*fname == '\0') /* quick rejection. */
|
|
|
1753 |
return 1;
|
|
|
1754 |
|
|
|
1755 |
/* !!! FIXME: This codeblock sucks. */
|
|
|
1756 |
if (h->mountPoint != NULL) /* NULL mountpoint means "/". */
|
|
|
1757 |
{
|
|
|
1758 |
size_t mntpntlen = strlen(h->mountPoint);
|
|
|
1759 |
size_t len = strlen(fname);
|
|
|
1760 |
assert(mntpntlen > 1); /* root mount points should be NULL. */
|
|
|
1761 |
/* not under the mountpoint, so skip this archive. */
|
|
|
1762 |
BAIL_IF_MACRO(len < mntpntlen-1, PHYSFS_ERR_NO_SUCH_PATH, 0);
|
|
|
1763 |
/* !!! FIXME: Case insensitive? */
|
|
|
1764 |
retval = strncmp(h->mountPoint, fname, mntpntlen-1);
|
|
|
1765 |
BAIL_IF_MACRO(retval != 0, PHYSFS_ERR_NO_SUCH_PATH, 0);
|
|
|
1766 |
if (len > mntpntlen-1) /* corner case... */
|
|
|
1767 |
BAIL_IF_MACRO(fname[mntpntlen-1]!='/', PHYSFS_ERR_NO_SUCH_PATH, 0);
|
|
|
1768 |
fname += mntpntlen-1; /* move to start of actual archive path. */
|
|
|
1769 |
if (*fname == '/')
|
|
|
1770 |
fname++;
|
|
|
1771 |
*_fname = fname; /* skip mountpoint for later use. */
|
|
|
1772 |
retval = 1; /* may be reset, below. */
|
|
|
1773 |
} /* if */
|
|
|
1774 |
|
|
|
1775 |
start = fname;
|
|
|
1776 |
if (!allowSymLinks)
|
|
|
1777 |
{
|
|
|
1778 |
while (1)
|
|
|
1779 |
{
|
|
|
1780 |
PHYSFS_Stat statbuf;
|
|
|
1781 |
int rc = 0;
|
|
|
1782 |
end = strchr(start, '/');
|
|
|
1783 |
|
|
|
1784 |
if (end != NULL) *end = '\0';
|
|
|
1785 |
rc = h->funcs->stat(h->opaque, fname, &retval, &statbuf);
|
|
|
1786 |
if (rc)
|
|
|
1787 |
rc = (statbuf.filetype == PHYSFS_FILETYPE_SYMLINK);
|
|
|
1788 |
if (end != NULL) *end = '/';
|
|
|
1789 |
|
|
|
1790 |
/* insecure path (has a disallowed symlink in it)? */
|
|
|
1791 |
BAIL_IF_MACRO(rc, PHYSFS_ERR_SYMLINK_FORBIDDEN, 0);
|
|
|
1792 |
|
|
|
1793 |
/* break out early if path element is missing. */
|
|
|
1794 |
if (!retval)
|
|
|
1795 |
{
|
|
|
1796 |
/*
|
|
|
1797 |
* We need to clear it if it's the last element of the path,
|
|
|
1798 |
* since this might be a non-existant file we're opening
|
|
|
1799 |
* for writing...
|
|
|
1800 |
*/
|
|
|
1801 |
if ((end == NULL) || (allowMissing))
|
|
|
1802 |
retval = 1;
|
|
|
1803 |
break;
|
|
|
1804 |
} /* if */
|
|
|
1805 |
|
|
|
1806 |
if (end == NULL)
|
|
|
1807 |
break;
|
|
|
1808 |
|
|
|
1809 |
start = end + 1;
|
|
|
1810 |
} /* while */
|
|
|
1811 |
} /* if */
|
|
|
1812 |
|
|
|
1813 |
return retval;
|
|
|
1814 |
} /* verifyPath */
|
|
|
1815 |
|
|
|
1816 |
|
|
|
1817 |
static int doMkdir(const char *_dname, char *dname)
|
|
|
1818 |
{
|
|
|
1819 |
DirHandle *h;
|
|
|
1820 |
char *start;
|
|
|
1821 |
char *end;
|
|
|
1822 |
int retval = 0;
|
|
|
1823 |
int exists = 1; /* force existance check on first path element. */
|
|
|
1824 |
|
|
|
1825 |
BAIL_IF_MACRO(!sanitizePlatformIndependentPath(_dname, dname), ERRPASS, 0);
|
|
|
1826 |
|
|
|
1827 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1828 |
BAIL_IF_MACRO_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
|
|
|
1829 |
h = writeDir;
|
|
|
1830 |
BAIL_IF_MACRO_MUTEX(!verifyPath(h, &dname, 1), ERRPASS, stateLock, 0);
|
|
|
1831 |
|
|
|
1832 |
start = dname;
|
|
|
1833 |
while (1)
|
|
|
1834 |
{
|
|
|
1835 |
end = strchr(start, '/');
|
|
|
1836 |
if (end != NULL)
|
|
|
1837 |
*end = '\0';
|
|
|
1838 |
|
|
|
1839 |
/* only check for existance if all parent dirs existed, too... */
|
|
|
1840 |
if (exists)
|
|
|
1841 |
{
|
|
|
1842 |
PHYSFS_Stat statbuf;
|
|
|
1843 |
const int rc = h->funcs->stat(h->opaque, dname, &exists, &statbuf);
|
|
|
1844 |
retval = ((rc) && (statbuf.filetype == PHYSFS_FILETYPE_DIRECTORY));
|
|
|
1845 |
} /* if */
|
|
|
1846 |
|
|
|
1847 |
if (!exists)
|
|
|
1848 |
retval = h->funcs->mkdir(h->opaque, dname);
|
|
|
1849 |
|
|
|
1850 |
if (!retval)
|
|
|
1851 |
break;
|
|
|
1852 |
|
|
|
1853 |
if (end == NULL)
|
|
|
1854 |
break;
|
|
|
1855 |
|
|
|
1856 |
*end = '/';
|
|
|
1857 |
start = end + 1;
|
|
|
1858 |
} /* while */
|
|
|
1859 |
|
|
|
1860 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1861 |
return retval;
|
|
|
1862 |
} /* doMkdir */
|
|
|
1863 |
|
|
|
1864 |
|
|
|
1865 |
int PHYSFS_mkdir(const char *_dname)
|
|
|
1866 |
{
|
|
|
1867 |
int retval = 0;
|
|
|
1868 |
char *dname;
|
|
|
1869 |
size_t len;
|
|
|
1870 |
|
|
|
1871 |
BAIL_IF_MACRO(!_dname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1872 |
len = strlen(_dname) + 1;
|
|
|
1873 |
dname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
1874 |
BAIL_IF_MACRO(!dname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
1875 |
retval = doMkdir(_dname, dname);
|
|
|
1876 |
__PHYSFS_smallFree(dname);
|
|
|
1877 |
return retval;
|
|
|
1878 |
} /* PHYSFS_mkdir */
|
|
|
1879 |
|
|
|
1880 |
|
|
|
1881 |
static int doDelete(const char *_fname, char *fname)
|
|
|
1882 |
{
|
|
|
1883 |
int retval;
|
|
|
1884 |
DirHandle *h;
|
|
|
1885 |
BAIL_IF_MACRO(!sanitizePlatformIndependentPath(_fname, fname), ERRPASS, 0);
|
|
|
1886 |
|
|
|
1887 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1888 |
|
|
|
1889 |
BAIL_IF_MACRO_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
|
|
|
1890 |
h = writeDir;
|
|
|
1891 |
BAIL_IF_MACRO_MUTEX(!verifyPath(h, &fname, 0), ERRPASS, stateLock, 0);
|
|
|
1892 |
retval = h->funcs->remove(h->opaque, fname);
|
|
|
1893 |
|
|
|
1894 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1895 |
return retval;
|
|
|
1896 |
} /* doDelete */
|
|
|
1897 |
|
|
|
1898 |
|
|
|
1899 |
int PHYSFS_delete(const char *_fname)
|
|
|
1900 |
{
|
|
|
1901 |
int retval;
|
|
|
1902 |
char *fname;
|
|
|
1903 |
size_t len;
|
|
|
1904 |
|
|
|
1905 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
1906 |
len = strlen(_fname) + 1;
|
|
|
1907 |
fname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
1908 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
1909 |
retval = doDelete(_fname, fname);
|
|
|
1910 |
__PHYSFS_smallFree(fname);
|
|
|
1911 |
return retval;
|
|
|
1912 |
} /* PHYSFS_delete */
|
|
|
1913 |
|
|
|
1914 |
|
|
|
1915 |
const char *PHYSFS_getRealDir(const char *_fname)
|
|
|
1916 |
{
|
|
|
1917 |
const char *retval = NULL;
|
|
|
1918 |
char *fname = NULL;
|
|
|
1919 |
size_t len;
|
|
|
1920 |
|
|
|
1921 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, NULL);
|
|
|
1922 |
len = strlen(_fname) + 1;
|
|
|
1923 |
fname = __PHYSFS_smallAlloc(len);
|
|
|
1924 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
1925 |
if (sanitizePlatformIndependentPath(_fname, fname))
|
|
|
1926 |
{
|
|
|
1927 |
DirHandle *i;
|
|
|
1928 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
1929 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
1930 |
{
|
|
|
1931 |
char *arcfname = fname;
|
|
|
1932 |
if (partOfMountPoint(i, arcfname))
|
|
|
1933 |
{
|
|
|
1934 |
retval = i->dirName;
|
|
|
1935 |
break;
|
|
|
1936 |
} /* if */
|
|
|
1937 |
else if (verifyPath(i, &arcfname, 0))
|
|
|
1938 |
{
|
|
|
1939 |
PHYSFS_Stat statbuf;
|
|
|
1940 |
int exists = 0;
|
|
|
1941 |
if (i->funcs->stat(i->opaque, arcfname, &exists, &statbuf))
|
|
|
1942 |
{
|
|
|
1943 |
if (exists)
|
|
|
1944 |
retval = i->dirName;
|
|
|
1945 |
break;
|
|
|
1946 |
} /* if */
|
|
|
1947 |
} /* if */
|
|
|
1948 |
} /* for */
|
|
|
1949 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
1950 |
} /* if */
|
|
|
1951 |
|
|
|
1952 |
__PHYSFS_smallFree(fname);
|
|
|
1953 |
return retval;
|
|
|
1954 |
} /* PHYSFS_getRealDir */
|
|
|
1955 |
|
|
|
1956 |
|
|
|
1957 |
static int locateInStringList(const char *str,
|
|
|
1958 |
char **list,
|
|
|
1959 |
PHYSFS_uint32 *pos)
|
|
|
1960 |
{
|
|
|
1961 |
PHYSFS_uint32 len = *pos;
|
|
|
1962 |
PHYSFS_uint32 half_len;
|
|
|
1963 |
PHYSFS_uint32 lo = 0;
|
|
|
1964 |
PHYSFS_uint32 middle;
|
|
|
1965 |
int cmp;
|
|
|
1966 |
|
|
|
1967 |
while (len > 0)
|
|
|
1968 |
{
|
|
|
1969 |
half_len = len >> 1;
|
|
|
1970 |
middle = lo + half_len;
|
|
|
1971 |
cmp = strcmp(list[middle], str);
|
|
|
1972 |
|
|
|
1973 |
if (cmp == 0) /* it's in the list already. */
|
|
|
1974 |
return 1;
|
|
|
1975 |
else if (cmp > 0)
|
|
|
1976 |
len = half_len;
|
|
|
1977 |
else
|
|
|
1978 |
{
|
|
|
1979 |
lo = middle + 1;
|
|
|
1980 |
len -= half_len + 1;
|
|
|
1981 |
} /* else */
|
|
|
1982 |
} /* while */
|
|
|
1983 |
|
|
|
1984 |
*pos = lo;
|
|
|
1985 |
return 0;
|
|
|
1986 |
} /* locateInStringList */
|
|
|
1987 |
|
|
|
1988 |
|
|
|
1989 |
static void enumFilesCallback(void *data, const char *origdir, const char *str)
|
|
|
1990 |
{
|
|
|
1991 |
PHYSFS_uint32 pos;
|
|
|
1992 |
void *ptr;
|
|
|
1993 |
char *newstr;
|
|
|
1994 |
EnumStringListCallbackData *pecd = (EnumStringListCallbackData *) data;
|
|
|
1995 |
|
|
|
1996 |
/*
|
|
|
1997 |
* See if file is in the list already, and if not, insert it in there
|
|
|
1998 |
* alphabetically...
|
|
|
1999 |
*/
|
|
|
2000 |
pos = pecd->size;
|
|
|
2001 |
if (locateInStringList(str, pecd->list, &pos))
|
|
|
2002 |
return; /* already in the list. */
|
|
|
2003 |
|
|
|
2004 |
ptr = allocator.Realloc(pecd->list, (pecd->size + 2) * sizeof (char *));
|
|
|
2005 |
newstr = (char *) allocator.Malloc(strlen(str) + 1);
|
|
|
2006 |
if (ptr != NULL)
|
|
|
2007 |
pecd->list = (char **) ptr;
|
|
|
2008 |
|
|
|
2009 |
if ((ptr == NULL) || (newstr == NULL))
|
|
|
2010 |
return; /* better luck next time. */
|
|
|
2011 |
|
|
|
2012 |
strcpy(newstr, str);
|
|
|
2013 |
|
|
|
2014 |
if (pos != pecd->size)
|
|
|
2015 |
{
|
|
|
2016 |
memmove(&pecd->list[pos+1], &pecd->list[pos],
|
|
|
2017 |
sizeof (char *) * ((pecd->size) - pos));
|
|
|
2018 |
} /* if */
|
|
|
2019 |
|
|
|
2020 |
pecd->list[pos] = newstr;
|
|
|
2021 |
pecd->size++;
|
|
|
2022 |
} /* enumFilesCallback */
|
|
|
2023 |
|
|
|
2024 |
|
|
|
2025 |
char **PHYSFS_enumerateFiles(const char *path)
|
|
|
2026 |
{
|
|
|
2027 |
EnumStringListCallbackData ecd;
|
|
|
2028 |
memset(&ecd, '\0', sizeof (ecd));
|
|
|
2029 |
ecd.list = (char **) allocator.Malloc(sizeof (char *));
|
|
|
2030 |
BAIL_IF_MACRO(!ecd.list, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
2031 |
PHYSFS_enumerateFilesCallback(path, enumFilesCallback, &ecd);
|
|
|
2032 |
ecd.list[ecd.size] = NULL;
|
|
|
2033 |
return ecd.list;
|
|
|
2034 |
} /* PHYSFS_enumerateFiles */
|
|
|
2035 |
|
|
|
2036 |
|
|
|
2037 |
/*
|
|
|
2038 |
* Broke out to seperate function so we can use stack allocation gratuitously.
|
|
|
2039 |
*/
|
|
|
2040 |
static void enumerateFromMountPoint(DirHandle *i, const char *arcfname,
|
|
|
2041 |
PHYSFS_EnumFilesCallback callback,
|
|
|
2042 |
const char *_fname, void *data)
|
|
|
2043 |
{
|
|
|
2044 |
const size_t len = strlen(arcfname);
|
|
|
2045 |
char *ptr = NULL;
|
|
|
2046 |
char *end = NULL;
|
|
|
2047 |
const size_t slen = strlen(i->mountPoint) + 1;
|
|
|
2048 |
char *mountPoint = (char *) __PHYSFS_smallAlloc(slen);
|
|
|
2049 |
|
|
|
2050 |
if (mountPoint == NULL)
|
|
|
2051 |
return; /* oh well. */
|
|
|
2052 |
|
|
|
2053 |
strcpy(mountPoint, i->mountPoint);
|
|
|
2054 |
ptr = mountPoint + ((len) ? len + 1 : 0);
|
|
|
2055 |
end = strchr(ptr, '/');
|
|
|
2056 |
assert(end); /* should always find a terminating '/'. */
|
|
|
2057 |
*end = '\0';
|
|
|
2058 |
callback(data, _fname, ptr);
|
|
|
2059 |
__PHYSFS_smallFree(mountPoint);
|
|
|
2060 |
} /* enumerateFromMountPoint */
|
|
|
2061 |
|
|
|
2062 |
|
|
|
2063 |
/* !!! FIXME: this should report error conditions. */
|
|
|
2064 |
void PHYSFS_enumerateFilesCallback(const char *_fname,
|
|
|
2065 |
PHYSFS_EnumFilesCallback callback,
|
|
|
2066 |
void *data)
|
|
|
2067 |
{
|
|
|
2068 |
size_t len;
|
|
|
2069 |
char *fname;
|
|
|
2070 |
|
|
|
2071 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, ) /*0*/;
|
|
|
2072 |
BAIL_IF_MACRO(!callback, PHYSFS_ERR_INVALID_ARGUMENT, ) /*0*/;
|
|
|
2073 |
|
|
|
2074 |
len = strlen(_fname) + 1;
|
|
|
2075 |
fname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
2076 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, ) /*0*/;
|
|
|
2077 |
|
|
|
2078 |
if (sanitizePlatformIndependentPath(_fname, fname))
|
|
|
2079 |
{
|
|
|
2080 |
DirHandle *i;
|
|
|
2081 |
int noSyms;
|
|
|
2082 |
|
|
|
2083 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
2084 |
noSyms = !allowSymLinks;
|
|
|
2085 |
for (i = searchPath; i != NULL; i = i->next)
|
|
|
2086 |
{
|
|
|
2087 |
char *arcfname = fname;
|
|
|
2088 |
if (partOfMountPoint(i, arcfname))
|
|
|
2089 |
enumerateFromMountPoint(i, arcfname, callback, _fname, data);
|
|
|
2090 |
|
|
|
2091 |
else if (verifyPath(i, &arcfname, 0))
|
|
|
2092 |
{
|
|
|
2093 |
i->funcs->enumerateFiles(i->opaque, arcfname, noSyms,
|
|
|
2094 |
callback, _fname, data);
|
|
|
2095 |
} /* else if */
|
|
|
2096 |
} /* for */
|
|
|
2097 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
2098 |
} /* if */
|
|
|
2099 |
|
|
|
2100 |
__PHYSFS_smallFree(fname);
|
|
|
2101 |
} /* PHYSFS_enumerateFilesCallback */
|
|
|
2102 |
|
|
|
2103 |
|
|
|
2104 |
int PHYSFS_exists(const char *fname)
|
|
|
2105 |
{
|
|
|
2106 |
return (PHYSFS_getRealDir(fname) != NULL);
|
|
|
2107 |
} /* PHYSFS_exists */
|
|
|
2108 |
|
|
|
2109 |
|
|
|
2110 |
PHYSFS_sint64 PHYSFS_getLastModTime(const char *fname)
|
|
|
2111 |
{
|
|
|
2112 |
PHYSFS_Stat statbuf;
|
|
|
2113 |
BAIL_IF_MACRO(!PHYSFS_stat(fname, &statbuf), ERRPASS, -1);
|
|
|
2114 |
return statbuf.modtime;
|
|
|
2115 |
} /* PHYSFS_getLastModTime */
|
|
|
2116 |
|
|
|
2117 |
|
|
|
2118 |
int PHYSFS_isDirectory(const char *fname)
|
|
|
2119 |
{
|
|
|
2120 |
PHYSFS_Stat statbuf;
|
|
|
2121 |
BAIL_IF_MACRO(!PHYSFS_stat(fname, &statbuf), ERRPASS, 0);
|
|
|
2122 |
return (statbuf.filetype == PHYSFS_FILETYPE_DIRECTORY);
|
|
|
2123 |
} /* PHYSFS_isDirectory */
|
|
|
2124 |
|
|
|
2125 |
|
|
|
2126 |
int PHYSFS_isSymbolicLink(const char *fname)
|
|
|
2127 |
{
|
|
|
2128 |
PHYSFS_Stat statbuf;
|
|
|
2129 |
BAIL_IF_MACRO(!PHYSFS_stat(fname, &statbuf), ERRPASS, 0);
|
|
|
2130 |
return (statbuf.filetype == PHYSFS_FILETYPE_SYMLINK);
|
|
|
2131 |
} /* PHYSFS_isSymbolicLink */
|
|
|
2132 |
|
|
|
2133 |
|
|
|
2134 |
static PHYSFS_File *doOpenWrite(const char *_fname, int appending)
|
|
|
2135 |
{
|
|
|
2136 |
FileHandle *fh = NULL;
|
|
|
2137 |
size_t len;
|
|
|
2138 |
char *fname;
|
|
|
2139 |
|
|
|
2140 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
2141 |
len = strlen(_fname) + 1;
|
|
|
2142 |
fname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
2143 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
2144 |
|
|
|
2145 |
if (sanitizePlatformIndependentPath(_fname, fname))
|
|
|
2146 |
{
|
|
|
2147 |
PHYSFS_Io *io = NULL;
|
|
|
2148 |
DirHandle *h = NULL;
|
|
|
2149 |
const PHYSFS_Archiver *f;
|
|
|
2150 |
|
|
|
2151 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
2152 |
|
|
|
2153 |
GOTO_IF_MACRO(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, doOpenWriteEnd);
|
|
|
2154 |
|
|
|
2155 |
h = writeDir;
|
|
|
2156 |
GOTO_IF_MACRO(!verifyPath(h, &fname, 0), ERRPASS, doOpenWriteEnd);
|
|
|
2157 |
|
|
|
2158 |
f = h->funcs;
|
|
|
2159 |
if (appending)
|
|
|
2160 |
io = f->openAppend(h->opaque, fname);
|
|
|
2161 |
else
|
|
|
2162 |
io = f->openWrite(h->opaque, fname);
|
|
|
2163 |
|
|
|
2164 |
GOTO_IF_MACRO(!io, ERRPASS, doOpenWriteEnd);
|
|
|
2165 |
|
|
|
2166 |
fh = (FileHandle *) allocator.Malloc(sizeof (FileHandle));
|
|
|
2167 |
if (fh == NULL)
|
|
|
2168 |
{
|
|
|
2169 |
io->destroy(io);
|
|
|
2170 |
GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, doOpenWriteEnd);
|
|
|
2171 |
} /* if */
|
|
|
2172 |
else
|
|
|
2173 |
{
|
|
|
2174 |
memset(fh, '\0', sizeof (FileHandle));
|
|
|
2175 |
fh->io = io;
|
|
|
2176 |
fh->dirHandle = h;
|
|
|
2177 |
fh->next = openWriteList;
|
|
|
2178 |
openWriteList = fh;
|
|
|
2179 |
} /* else */
|
|
|
2180 |
|
|
|
2181 |
doOpenWriteEnd:
|
|
|
2182 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
2183 |
} /* if */
|
|
|
2184 |
|
|
|
2185 |
__PHYSFS_smallFree(fname);
|
|
|
2186 |
return ((PHYSFS_File *) fh);
|
|
|
2187 |
} /* doOpenWrite */
|
|
|
2188 |
|
|
|
2189 |
|
|
|
2190 |
PHYSFS_File *PHYSFS_openWrite(const char *filename)
|
|
|
2191 |
{
|
|
|
2192 |
return doOpenWrite(filename, 0);
|
|
|
2193 |
} /* PHYSFS_openWrite */
|
|
|
2194 |
|
|
|
2195 |
|
|
|
2196 |
PHYSFS_File *PHYSFS_openAppend(const char *filename)
|
|
|
2197 |
{
|
|
|
2198 |
return doOpenWrite(filename, 1);
|
|
|
2199 |
} /* PHYSFS_openAppend */
|
|
|
2200 |
|
|
|
2201 |
|
|
|
2202 |
PHYSFS_File *PHYSFS_openRead(const char *_fname)
|
|
|
2203 |
{
|
|
|
2204 |
FileHandle *fh = NULL;
|
|
|
2205 |
char *fname;
|
|
|
2206 |
size_t len;
|
|
|
2207 |
|
|
|
2208 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
2209 |
len = strlen(_fname) + 1;
|
|
|
2210 |
fname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
2211 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
2212 |
|
|
|
2213 |
if (sanitizePlatformIndependentPath(_fname, fname))
|
|
|
2214 |
{
|
|
|
2215 |
int fileExists = 0;
|
|
|
2216 |
DirHandle *i = NULL;
|
|
|
2217 |
PHYSFS_Io *io = NULL;
|
|
|
2218 |
|
|
|
2219 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
2220 |
|
|
|
2221 |
GOTO_IF_MACRO(!searchPath, PHYSFS_ERR_NO_SUCH_PATH, openReadEnd);
|
|
|
2222 |
|
|
|
2223 |
for (i = searchPath; (i != NULL) && (!fileExists); i = i->next)
|
|
|
2224 |
{
|
|
|
2225 |
char *arcfname = fname;
|
|
|
2226 |
if (verifyPath(i, &arcfname, 0))
|
|
|
2227 |
{
|
|
|
2228 |
io = i->funcs->openRead(i->opaque, arcfname, &fileExists);
|
|
|
2229 |
if (io)
|
|
|
2230 |
break;
|
|
|
2231 |
} /* if */
|
|
|
2232 |
} /* for */
|
|
|
2233 |
|
|
|
2234 |
GOTO_IF_MACRO(!io, ERRPASS, openReadEnd);
|
|
|
2235 |
|
|
|
2236 |
fh = (FileHandle *) allocator.Malloc(sizeof (FileHandle));
|
|
|
2237 |
if (fh == NULL)
|
|
|
2238 |
{
|
|
|
2239 |
io->destroy(io);
|
|
|
2240 |
GOTO_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, openReadEnd);
|
|
|
2241 |
} /* if */
|
|
|
2242 |
|
|
|
2243 |
memset(fh, '\0', sizeof (FileHandle));
|
|
|
2244 |
fh->io = io;
|
|
|
2245 |
fh->forReading = 1;
|
|
|
2246 |
fh->dirHandle = i;
|
|
|
2247 |
fh->next = openReadList;
|
|
|
2248 |
openReadList = fh;
|
|
|
2249 |
|
|
|
2250 |
openReadEnd:
|
|
|
2251 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
2252 |
} /* if */
|
|
|
2253 |
|
|
|
2254 |
__PHYSFS_smallFree(fname);
|
|
|
2255 |
return ((PHYSFS_File *) fh);
|
|
|
2256 |
} /* PHYSFS_openRead */
|
|
|
2257 |
|
|
|
2258 |
|
|
|
2259 |
static int closeHandleInOpenList(FileHandle **list, FileHandle *handle)
|
|
|
2260 |
{
|
|
|
2261 |
FileHandle *prev = NULL;
|
|
|
2262 |
FileHandle *i;
|
|
|
2263 |
int rc = 1;
|
|
|
2264 |
|
|
|
2265 |
for (i = *list; i != NULL; i = i->next)
|
|
|
2266 |
{
|
|
|
2267 |
if (i == handle) /* handle is in this list? */
|
|
|
2268 |
{
|
|
|
2269 |
PHYSFS_Io *io = handle->io;
|
|
|
2270 |
PHYSFS_uint8 *tmp = handle->buffer;
|
|
|
2271 |
rc = PHYSFS_flush((PHYSFS_File *) handle);
|
|
|
2272 |
if (!rc)
|
|
|
2273 |
return -1;
|
|
|
2274 |
io->destroy(io);
|
|
|
2275 |
|
|
|
2276 |
if (tmp != NULL) /* free any associated buffer. */
|
|
|
2277 |
allocator.Free(tmp);
|
|
|
2278 |
|
|
|
2279 |
if (prev == NULL)
|
|
|
2280 |
*list = handle->next;
|
|
|
2281 |
else
|
|
|
2282 |
prev->next = handle->next;
|
|
|
2283 |
|
|
|
2284 |
allocator.Free(handle);
|
|
|
2285 |
return 1;
|
|
|
2286 |
} /* if */
|
|
|
2287 |
prev = i;
|
|
|
2288 |
} /* for */
|
|
|
2289 |
|
|
|
2290 |
return 0;
|
|
|
2291 |
} /* closeHandleInOpenList */
|
|
|
2292 |
|
|
|
2293 |
|
|
|
2294 |
int PHYSFS_close(PHYSFS_File *_handle)
|
|
|
2295 |
{
|
|
|
2296 |
FileHandle *handle = (FileHandle *) _handle;
|
|
|
2297 |
int rc;
|
|
|
2298 |
|
|
|
2299 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
2300 |
|
|
|
2301 |
/* -1 == close failure. 0 == not found. 1 == success. */
|
|
|
2302 |
rc = closeHandleInOpenList(&openReadList, handle);
|
|
|
2303 |
BAIL_IF_MACRO_MUTEX(rc == -1, ERRPASS, stateLock, 0);
|
|
|
2304 |
if (!rc)
|
|
|
2305 |
{
|
|
|
2306 |
rc = closeHandleInOpenList(&openWriteList, handle);
|
|
|
2307 |
BAIL_IF_MACRO_MUTEX(rc == -1, ERRPASS, stateLock, 0);
|
|
|
2308 |
} /* if */
|
|
|
2309 |
|
|
|
2310 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
2311 |
BAIL_IF_MACRO(!rc, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
2312 |
return 1;
|
|
|
2313 |
} /* PHYSFS_close */
|
|
|
2314 |
|
|
|
2315 |
|
|
|
2316 |
static PHYSFS_sint64 doBufferedRead(FileHandle *fh, void *buffer,
|
|
|
2317 |
PHYSFS_uint64 len)
|
|
|
2318 |
{
|
|
|
2319 |
PHYSFS_Io *io = NULL;
|
|
|
2320 |
PHYSFS_sint64 retval = 0;
|
|
|
2321 |
PHYSFS_uint32 buffered = 0;
|
|
|
2322 |
PHYSFS_sint64 rc = 0;
|
|
|
2323 |
|
|
|
2324 |
if (len == 0)
|
|
|
2325 |
return 0;
|
|
|
2326 |
|
|
|
2327 |
buffered = fh->buffill - fh->bufpos;
|
|
|
2328 |
if (buffered >= len) /* totally in the buffer, just copy and return! */
|
|
|
2329 |
{
|
|
|
2330 |
memcpy(buffer, fh->buffer + fh->bufpos, (size_t) len);
|
|
|
2331 |
fh->bufpos += (PHYSFS_uint32) len;
|
|
|
2332 |
return (PHYSFS_sint64) len;
|
|
|
2333 |
} /* else if */
|
|
|
2334 |
|
|
|
2335 |
if (buffered > 0) /* partially in the buffer... */
|
|
|
2336 |
{
|
|
|
2337 |
memcpy(buffer, fh->buffer + fh->bufpos, (size_t) buffered);
|
|
|
2338 |
buffer = ((PHYSFS_uint8 *) buffer) + buffered;
|
|
|
2339 |
len -= buffered;
|
|
|
2340 |
retval = buffered;
|
|
|
2341 |
fh->buffill = fh->bufpos = 0;
|
|
|
2342 |
} /* if */
|
|
|
2343 |
|
|
|
2344 |
/* if you got here, the buffer is drained and we still need bytes. */
|
|
|
2345 |
assert(len > 0);
|
|
|
2346 |
|
|
|
2347 |
io = fh->io;
|
|
|
2348 |
if (len >= fh->bufsize) /* need more than the buffer takes. */
|
|
|
2349 |
{
|
|
|
2350 |
/* leave buffer empty, go right to output instead. */
|
|
|
2351 |
rc = io->read(io, buffer, len);
|
|
|
2352 |
if (rc < 0)
|
|
|
2353 |
return ((retval == 0) ? rc : retval);
|
|
|
2354 |
return retval + rc;
|
|
|
2355 |
} /* if */
|
|
|
2356 |
|
|
|
2357 |
/* need less than buffer can take. Fill buffer. */
|
|
|
2358 |
rc = io->read(io, fh->buffer, fh->bufsize);
|
|
|
2359 |
if (rc < 0)
|
|
|
2360 |
return ((retval == 0) ? rc : retval);
|
|
|
2361 |
|
|
|
2362 |
assert(fh->bufpos == 0);
|
|
|
2363 |
fh->buffill = (PHYSFS_uint32) rc;
|
|
|
2364 |
rc = doBufferedRead(fh, buffer, len); /* go from the start, again. */
|
|
|
2365 |
if (rc < 0)
|
|
|
2366 |
return ((retval == 0) ? rc : retval);
|
|
|
2367 |
|
|
|
2368 |
return retval + rc;
|
|
|
2369 |
} /* doBufferedRead */
|
|
|
2370 |
|
|
|
2371 |
|
|
|
2372 |
PHYSFS_sint64 PHYSFS_read(PHYSFS_File *handle, void *buffer,
|
|
|
2373 |
PHYSFS_uint32 size, PHYSFS_uint32 count)
|
|
|
2374 |
{
|
|
|
2375 |
const PHYSFS_uint64 len = ((PHYSFS_uint64) size) * ((PHYSFS_uint64) count);
|
|
|
2376 |
const PHYSFS_sint64 retval = PHYSFS_readBytes(handle, buffer, len);
|
|
|
2377 |
return ( (retval <= 0) ? retval : (retval / ((PHYSFS_sint64) size)) );
|
|
|
2378 |
} /* PHYSFS_read */
|
|
|
2379 |
|
|
|
2380 |
|
|
|
2381 |
PHYSFS_sint64 PHYSFS_readBytes(PHYSFS_File *handle, void *buffer,
|
|
|
2382 |
PHYSFS_uint64 len)
|
|
|
2383 |
{
|
|
|
2384 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2385 |
|
|
|
2386 |
#ifdef PHYSFS_NO_64BIT_SUPPORT
|
|
|
2387 |
const PHYSFS_uint64 maxlen = __PHYSFS_UI64(0x7FFFFFFF);
|
|
|
2388 |
#else
|
|
|
2389 |
const PHYSFS_uint64 maxlen = __PHYSFS_UI64(0x7FFFFFFFFFFFFFFF);
|
|
|
2390 |
#endif
|
|
|
2391 |
|
|
|
2392 |
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
|
2393 |
BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2394 |
|
|
|
2395 |
BAIL_IF_MACRO(len > maxlen, PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2396 |
BAIL_IF_MACRO(!fh->forReading, PHYSFS_ERR_OPEN_FOR_WRITING, -1);
|
|
|
2397 |
BAIL_IF_MACRO(len == 0, ERRPASS, 0);
|
|
|
2398 |
if (fh->buffer)
|
|
|
2399 |
return doBufferedRead(fh, buffer, len);
|
|
|
2400 |
|
|
|
2401 |
return fh->io->read(fh->io, buffer, len);
|
|
|
2402 |
} /* PHYSFS_readBytes */
|
|
|
2403 |
|
|
|
2404 |
|
|
|
2405 |
static PHYSFS_sint64 doBufferedWrite(PHYSFS_File *handle, const void *buffer,
|
|
|
2406 |
PHYSFS_uint64 len)
|
|
|
2407 |
{
|
|
|
2408 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2409 |
|
|
|
2410 |
/* whole thing fits in the buffer? */
|
|
|
2411 |
if ( (((PHYSFS_uint64) fh->buffill) + len) < fh->bufsize )
|
|
|
2412 |
{
|
|
|
2413 |
memcpy(fh->buffer + fh->buffill, buffer, (size_t) len);
|
|
|
2414 |
fh->buffill += (PHYSFS_uint32) len;
|
|
|
2415 |
return (PHYSFS_sint64) len;
|
|
|
2416 |
} /* if */
|
|
|
2417 |
|
|
|
2418 |
/* would overflow buffer. Flush and then write the new objects, too. */
|
|
|
2419 |
BAIL_IF_MACRO(!PHYSFS_flush(handle), ERRPASS, -1);
|
|
|
2420 |
return fh->io->write(fh->io, buffer, len);
|
|
|
2421 |
} /* doBufferedWrite */
|
|
|
2422 |
|
|
|
2423 |
|
|
|
2424 |
PHYSFS_sint64 PHYSFS_write(PHYSFS_File *handle, const void *buffer,
|
|
|
2425 |
PHYSFS_uint32 size, PHYSFS_uint32 count)
|
|
|
2426 |
{
|
|
|
2427 |
const PHYSFS_uint64 len = ((PHYSFS_uint64) size) * ((PHYSFS_uint64) count);
|
|
|
2428 |
const PHYSFS_sint64 retval = PHYSFS_writeBytes(handle, buffer, len);
|
|
|
2429 |
return ( (retval <= 0) ? retval : (retval / ((PHYSFS_sint64) size)) );
|
|
|
2430 |
} /* PHYSFS_write */
|
|
|
2431 |
|
|
|
2432 |
|
|
|
2433 |
PHYSFS_sint64 PHYSFS_writeBytes(PHYSFS_File *handle, const void *buffer,
|
|
|
2434 |
PHYSFS_uint64 len)
|
|
|
2435 |
{
|
|
|
2436 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2437 |
|
|
|
2438 |
#ifdef PHYSFS_NO_64BIT_SUPPORT
|
|
|
2439 |
const PHYSFS_uint64 maxlen = __PHYSFS_UI64(0x7FFFFFFF);
|
|
|
2440 |
#else
|
|
|
2441 |
const PHYSFS_uint64 maxlen = __PHYSFS_UI64(0x7FFFFFFFFFFFFFFF);
|
|
|
2442 |
#endif
|
|
|
2443 |
|
|
|
2444 |
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
|
2445 |
BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2446 |
|
|
|
2447 |
BAIL_IF_MACRO(len > maxlen, PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2448 |
BAIL_IF_MACRO(fh->forReading, PHYSFS_ERR_OPEN_FOR_READING, -1);
|
|
|
2449 |
BAIL_IF_MACRO(len == 0, ERRPASS, 0);
|
|
|
2450 |
if (fh->buffer)
|
|
|
2451 |
return doBufferedWrite(handle, buffer, len);
|
|
|
2452 |
|
|
|
2453 |
return fh->io->write(fh->io, buffer, len);
|
|
|
2454 |
} /* PHYSFS_write */
|
|
|
2455 |
|
|
|
2456 |
|
|
|
2457 |
int PHYSFS_eof(PHYSFS_File *handle)
|
|
|
2458 |
{
|
|
|
2459 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2460 |
|
|
|
2461 |
if (!fh->forReading) /* never EOF on files opened for write/append. */
|
|
|
2462 |
return 0;
|
|
|
2463 |
|
|
|
2464 |
/* can't be eof if buffer isn't empty */
|
|
|
2465 |
if (fh->bufpos == fh->buffill)
|
|
|
2466 |
{
|
|
|
2467 |
/* check the Io. */
|
|
|
2468 |
PHYSFS_Io *io = fh->io;
|
|
|
2469 |
const PHYSFS_sint64 pos = io->tell(io);
|
|
|
2470 |
const PHYSFS_sint64 len = io->length(io);
|
|
|
2471 |
if ((pos < 0) || (len < 0))
|
|
|
2472 |
return 0; /* beats me. */
|
|
|
2473 |
return (pos >= len);
|
|
|
2474 |
} /* if */
|
|
|
2475 |
|
|
|
2476 |
return 0;
|
|
|
2477 |
} /* PHYSFS_eof */
|
|
|
2478 |
|
|
|
2479 |
|
|
|
2480 |
PHYSFS_sint64 PHYSFS_tell(PHYSFS_File *handle)
|
|
|
2481 |
{
|
|
|
2482 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2483 |
const PHYSFS_sint64 pos = fh->io->tell(fh->io);
|
|
|
2484 |
const PHYSFS_sint64 retval = fh->forReading ?
|
|
|
2485 |
(pos - fh->buffill) + fh->bufpos :
|
|
|
2486 |
(pos + fh->buffill);
|
|
|
2487 |
return retval;
|
|
|
2488 |
} /* PHYSFS_tell */
|
|
|
2489 |
|
|
|
2490 |
|
|
|
2491 |
int PHYSFS_seek(PHYSFS_File *handle, PHYSFS_uint64 pos)
|
|
|
2492 |
{
|
|
|
2493 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2494 |
BAIL_IF_MACRO(!PHYSFS_flush(handle), ERRPASS, 0);
|
|
|
2495 |
|
|
|
2496 |
if (fh->buffer && fh->forReading)
|
|
|
2497 |
{
|
|
|
2498 |
/* avoid throwing away our precious buffer if seeking within it. */
|
|
|
2499 |
PHYSFS_sint64 offset = pos - PHYSFS_tell(handle);
|
|
|
2500 |
if ( /* seeking within the already-buffered range? */
|
|
|
2501 |
((offset >= 0) && (offset <= fh->buffill - fh->bufpos)) /* fwd */
|
|
|
2502 |
|| ((offset < 0) && (-offset <= fh->bufpos)) /* backward */ )
|
|
|
2503 |
{
|
|
|
2504 |
fh->bufpos += (PHYSFS_uint32) offset;
|
|
|
2505 |
return 1; /* successful seek */
|
|
|
2506 |
} /* if */
|
|
|
2507 |
} /* if */
|
|
|
2508 |
|
|
|
2509 |
/* we have to fall back to a 'raw' seek. */
|
|
|
2510 |
fh->buffill = fh->bufpos = 0;
|
|
|
2511 |
return fh->io->seek(fh->io, pos);
|
|
|
2512 |
} /* PHYSFS_seek */
|
|
|
2513 |
|
|
|
2514 |
|
|
|
2515 |
PHYSFS_sint64 PHYSFS_fileLength(PHYSFS_File *handle)
|
|
|
2516 |
{
|
|
|
2517 |
PHYSFS_Io *io = ((FileHandle *) handle)->io;
|
|
|
2518 |
return io->length(io);
|
|
|
2519 |
} /* PHYSFS_filelength */
|
|
|
2520 |
|
|
|
2521 |
|
|
|
2522 |
int PHYSFS_setBuffer(PHYSFS_File *handle, PHYSFS_uint64 _bufsize)
|
|
|
2523 |
{
|
|
|
2524 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2525 |
PHYSFS_uint32 bufsize;
|
|
|
2526 |
|
|
|
2527 |
/* !!! FIXME: actually, why use 32 bits here? */
|
|
|
2528 |
/*BAIL_IF_MACRO(_bufsize > 0xFFFFFFFF, "buffer must fit in 32-bits", 0);*/
|
|
|
2529 |
BAIL_IF_MACRO(_bufsize > 0xFFFFFFFF, PHYSFS_ERR_INVALID_ARGUMENT, 0);
|
|
|
2530 |
bufsize = (PHYSFS_uint32) _bufsize;
|
|
|
2531 |
|
|
|
2532 |
BAIL_IF_MACRO(!PHYSFS_flush(handle), ERRPASS, 0);
|
|
|
2533 |
|
|
|
2534 |
/*
|
|
|
2535 |
* For reads, we need to move the file pointer to where it would be
|
|
|
2536 |
* if we weren't buffering, so that the next read will get the
|
|
|
2537 |
* right chunk of stuff from the file. PHYSFS_flush() handles writes.
|
|
|
2538 |
*/
|
|
|
2539 |
if ((fh->forReading) && (fh->buffill != fh->bufpos))
|
|
|
2540 |
{
|
|
|
2541 |
PHYSFS_uint64 pos;
|
|
|
2542 |
const PHYSFS_sint64 curpos = fh->io->tell(fh->io);
|
|
|
2543 |
BAIL_IF_MACRO(curpos == -1, ERRPASS, 0);
|
|
|
2544 |
pos = ((curpos - fh->buffill) + fh->bufpos);
|
|
|
2545 |
BAIL_IF_MACRO(!fh->io->seek(fh->io, pos), ERRPASS, 0);
|
|
|
2546 |
} /* if */
|
|
|
2547 |
|
|
|
2548 |
if (bufsize == 0) /* delete existing buffer. */
|
|
|
2549 |
{
|
|
|
2550 |
if (fh->buffer)
|
|
|
2551 |
{
|
|
|
2552 |
allocator.Free(fh->buffer);
|
|
|
2553 |
fh->buffer = NULL;
|
|
|
2554 |
} /* if */
|
|
|
2555 |
} /* if */
|
|
|
2556 |
|
|
|
2557 |
else
|
|
|
2558 |
{
|
|
|
2559 |
PHYSFS_uint8 *newbuf;
|
|
|
2560 |
newbuf = (PHYSFS_uint8 *) allocator.Realloc(fh->buffer, bufsize);
|
|
|
2561 |
BAIL_IF_MACRO(!newbuf, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
|
2562 |
fh->buffer = newbuf;
|
|
|
2563 |
} /* else */
|
|
|
2564 |
|
|
|
2565 |
fh->bufsize = bufsize;
|
|
|
2566 |
fh->buffill = fh->bufpos = 0;
|
|
|
2567 |
return 1;
|
|
|
2568 |
} /* PHYSFS_setBuffer */
|
|
|
2569 |
|
|
|
2570 |
|
|
|
2571 |
int PHYSFS_flush(PHYSFS_File *handle)
|
|
|
2572 |
{
|
|
|
2573 |
FileHandle *fh = (FileHandle *) handle;
|
|
|
2574 |
PHYSFS_Io *io;
|
|
|
2575 |
PHYSFS_sint64 rc;
|
|
|
2576 |
|
|
|
2577 |
if ((fh->forReading) || (fh->bufpos == fh->buffill))
|
|
|
2578 |
return 1; /* open for read or buffer empty are successful no-ops. */
|
|
|
2579 |
|
|
|
2580 |
/* dump buffer to disk. */
|
|
|
2581 |
io = fh->io;
|
|
|
2582 |
rc = io->write(io, fh->buffer + fh->bufpos, fh->buffill - fh->bufpos);
|
|
|
2583 |
BAIL_IF_MACRO(rc <= 0, ERRPASS, 0);
|
|
|
2584 |
fh->bufpos = fh->buffill = 0;
|
|
|
2585 |
return io->flush(io);
|
|
|
2586 |
} /* PHYSFS_flush */
|
|
|
2587 |
|
|
|
2588 |
|
|
|
2589 |
int PHYSFS_stat(const char *_fname, PHYSFS_Stat *stat)
|
|
|
2590 |
{
|
|
|
2591 |
int retval = 0;
|
|
|
2592 |
char *fname;
|
|
|
2593 |
size_t len;
|
|
|
2594 |
|
|
|
2595 |
BAIL_IF_MACRO(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2596 |
BAIL_IF_MACRO(!stat, PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
2597 |
len = strlen(_fname) + 1;
|
|
|
2598 |
fname = (char *) __PHYSFS_smallAlloc(len);
|
|
|
2599 |
BAIL_IF_MACRO(!fname, PHYSFS_ERR_OUT_OF_MEMORY, -1);
|
|
|
2600 |
|
|
|
2601 |
/* set some sane defaults... */
|
|
|
2602 |
stat->filesize = -1;
|
|
|
2603 |
stat->modtime = -1;
|
|
|
2604 |
stat->createtime = -1;
|
|
|
2605 |
stat->accesstime = -1;
|
|
|
2606 |
stat->filetype = PHYSFS_FILETYPE_OTHER;
|
|
|
2607 |
stat->readonly = 1; /* !!! FIXME */
|
|
|
2608 |
|
|
|
2609 |
if (sanitizePlatformIndependentPath(_fname, fname))
|
|
|
2610 |
{
|
|
|
2611 |
if (*fname == '\0')
|
|
|
2612 |
{
|
|
|
2613 |
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
|
|
|
2614 |
stat->readonly = !writeDir; /* Writeable if we have a writeDir */
|
|
|
2615 |
retval = 1;
|
|
|
2616 |
} /* if */
|
|
|
2617 |
else
|
|
|
2618 |
{
|
|
|
2619 |
DirHandle *i;
|
|
|
2620 |
int exists = 0;
|
|
|
2621 |
__PHYSFS_platformGrabMutex(stateLock);
|
|
|
2622 |
for (i = searchPath; ((i != NULL) && (!exists)); i = i->next)
|
|
|
2623 |
{
|
|
|
2624 |
char *arcfname = fname;
|
|
|
2625 |
exists = partOfMountPoint(i, arcfname);
|
|
|
2626 |
if (exists)
|
|
|
2627 |
{
|
|
|
2628 |
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
|
|
|
2629 |
stat->readonly = 1; /* !!! FIXME */
|
|
|
2630 |
retval = 1;
|
|
|
2631 |
} /* if */
|
|
|
2632 |
else if (verifyPath(i, &arcfname, 0))
|
|
|
2633 |
{
|
|
|
2634 |
/* !!! FIXME: this test is wrong and should be elsewhere. */
|
|
|
2635 |
stat->readonly = !(writeDir &&
|
|
|
2636 |
(strcmp(writeDir->dirName, i->dirName) == 0));
|
|
|
2637 |
retval = i->funcs->stat(i->opaque, arcfname, &exists, stat);
|
|
|
2638 |
} /* else if */
|
|
|
2639 |
} /* for */
|
|
|
2640 |
__PHYSFS_platformReleaseMutex(stateLock);
|
|
|
2641 |
} /* else */
|
|
|
2642 |
} /* if */
|
|
|
2643 |
|
|
|
2644 |
__PHYSFS_smallFree(fname);
|
|
|
2645 |
return retval;
|
|
|
2646 |
} /* PHYSFS_stat */
|
|
|
2647 |
|
|
|
2648 |
|
|
|
2649 |
int __PHYSFS_readAll(PHYSFS_Io *io, void *buf, const PHYSFS_uint64 len)
|
|
|
2650 |
{
|
|
|
2651 |
return (io->read(io, buf, len) == len);
|
|
|
2652 |
} /* __PHYSFS_readAll */
|
|
|
2653 |
|
|
|
2654 |
|
|
|
2655 |
void *__PHYSFS_initSmallAlloc(void *ptr, PHYSFS_uint64 len)
|
|
|
2656 |
{
|
|
|
2657 |
void *useHeap = ((ptr == NULL) ? ((void *) 1) : ((void *) 0));
|
|
|
2658 |
if (useHeap) /* too large for stack allocation or alloca() failed. */
|
|
|
2659 |
ptr = allocator.Malloc(len+sizeof (void *));
|
|
|
2660 |
|
|
|
2661 |
if (ptr != NULL)
|
|
|
2662 |
{
|
|
|
2663 |
void **retval = (void **) ptr;
|
|
|
2664 |
/*printf("%s alloc'd (%d) bytes at (%p).\n",
|
|
|
2665 |
useHeap ? "heap" : "stack", (int) len, ptr);*/
|
|
|
2666 |
*retval = useHeap;
|
|
|
2667 |
return retval + 1;
|
|
|
2668 |
} /* if */
|
|
|
2669 |
|
|
|
2670 |
return NULL; /* allocation failed. */
|
|
|
2671 |
} /* __PHYSFS_initSmallAlloc */
|
|
|
2672 |
|
|
|
2673 |
|
|
|
2674 |
void __PHYSFS_smallFree(void *ptr)
|
|
|
2675 |
{
|
|
|
2676 |
if (ptr != NULL)
|
|
|
2677 |
{
|
|
|
2678 |
void **block = ((void **) ptr) - 1;
|
|
|
2679 |
const int useHeap = (*block != 0);
|
|
|
2680 |
if (useHeap)
|
|
|
2681 |
allocator.Free(block);
|
|
|
2682 |
/*printf("%s free'd (%p).\n", useHeap ? "heap" : "stack", block);*/
|
|
|
2683 |
} /* if */
|
|
|
2684 |
} /* __PHYSFS_smallFree */
|
|
|
2685 |
|
|
|
2686 |
|
|
|
2687 |
int PHYSFS_setAllocator(const PHYSFS_Allocator *a)
|
|
|
2688 |
{
|
|
|
2689 |
BAIL_IF_MACRO(initialized, PHYSFS_ERR_IS_INITIALIZED, 0);
|
|
|
2690 |
externalAllocator = (a != NULL);
|
|
|
2691 |
if (externalAllocator)
|
|
|
2692 |
memcpy(&allocator, a, sizeof (PHYSFS_Allocator));
|
|
|
2693 |
|
|
|
2694 |
return 1;
|
|
|
2695 |
} /* PHYSFS_setAllocator */
|
|
|
2696 |
|
|
|
2697 |
|
|
|
2698 |
const PHYSFS_Allocator *PHYSFS_getAllocator(void)
|
|
|
2699 |
{
|
|
|
2700 |
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, NULL);
|
|
|
2701 |
return &allocator;
|
|
|
2702 |
} /* PHYSFS_getAllocator */
|
|
|
2703 |
|
|
|
2704 |
|
|
|
2705 |
static void *mallocAllocatorMalloc(PHYSFS_uint64 s)
|
|
|
2706 |
{
|
|
|
2707 |
if (!__PHYSFS_ui64FitsAddressSpace(s))
|
|
|
2708 |
BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
2709 |
#undef malloc
|
|
|
2710 |
return malloc((size_t) s);
|
|
|
2711 |
} /* mallocAllocatorMalloc */
|
|
|
2712 |
|
|
|
2713 |
|
|
|
2714 |
static void *mallocAllocatorRealloc(void *ptr, PHYSFS_uint64 s)
|
|
|
2715 |
{
|
|
|
2716 |
if (!__PHYSFS_ui64FitsAddressSpace(s))
|
|
|
2717 |
BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
2718 |
#undef realloc
|
|
|
2719 |
return realloc(ptr, (size_t) s);
|
|
|
2720 |
} /* mallocAllocatorRealloc */
|
|
|
2721 |
|
|
|
2722 |
|
|
|
2723 |
static void mallocAllocatorFree(void *ptr)
|
|
|
2724 |
{
|
|
|
2725 |
#undef free
|
|
|
2726 |
free(ptr);
|
|
|
2727 |
} /* mallocAllocatorFree */
|
|
|
2728 |
|
|
|
2729 |
|
|
|
2730 |
static void setDefaultAllocator(void)
|
|
|
2731 |
{
|
|
|
2732 |
assert(!externalAllocator);
|
|
|
2733 |
if (!__PHYSFS_platformSetDefaultAllocator(&allocator))
|
|
|
2734 |
{
|
|
|
2735 |
allocator.Init = NULL;
|
|
|
2736 |
allocator.Deinit = NULL;
|
|
|
2737 |
allocator.Malloc = mallocAllocatorMalloc;
|
|
|
2738 |
allocator.Realloc = mallocAllocatorRealloc;
|
|
|
2739 |
allocator.Free = mallocAllocatorFree;
|
|
|
2740 |
} /* if */
|
|
|
2741 |
} /* setDefaultAllocator */
|
|
|
2742 |
|
|
|
2743 |
/* end of physfs.c ... */
|
|
|
2744 |
|