+
−/*
+
− * Hedgewars-iOS, a Hedgewars port for iOS devices
+
− * Copyright (c) 2009-2010 Vittorio Giovara <vittorio.giovara@gmail.com>
+
− *
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− * This program is free software; you can redistribute it and/or modify
+
− * it under the terms of the GNU General Public License as published by
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− * the Free Software Foundation; version 2 of the License
+
− *
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− * This program is distributed in the hope that it will be useful,
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− * but WITHOUT ANY WARRANTY; without even the implied warranty of
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− * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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− * GNU General Public License for more details.
+
− *
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− * You should have received a copy of the GNU General Public License
+
− * along with this program; if not, write to the Free Software
+
− * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
− *
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− * File created on 01/10/2011.
+
− */
+
−
+
−
+
−#import "HWUtils.h"
+
−#import <sys/types.h>
+
−#import <sys/sysctl.h>
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−#import <netinet/in.h>
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−#import <SystemConfiguration/SCNetworkReachability.h>
+
−#import "hwconsts.h"
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−
+
−static NSString *cachedModel = nil;
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−static NSArray *cachedColors = nil;
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−
+
−@implementation HWUtils
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−
+
−+(NSString *)modelType {
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−    if (cachedModel == nil) {
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−        size_t size;
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−        // set 'oldp' parameter to NULL to get the size of the data returned so we can allocate appropriate amount of space
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−        sysctlbyname("hw.machine", NULL, &size, NULL, 0);
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−        char *name = (char *)malloc(sizeof(char) * size);
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−        // get the platform name
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−        sysctlbyname("hw.machine", name, &size, NULL, 0);
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−
+
−        cachedModel = [[NSString stringWithUTF8String:name] retain];
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−        free(name);
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−    }
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−    return cachedModel;
+
−}
+
−
+
−+(NSArray *)teamColors {
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−    if (cachedColors == nil) {
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−        // by default colors are ARGB but we do computation over RGB, hence we have to "& 0x00FFFFFF" before processing
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−        unsigned int colors[] = HW_TEAMCOLOR_ARRAY;
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−        NSMutableArray *array = [[NSMutableArray alloc] init];
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−
+
−        int i = 0;
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−        while(colors[i] != 0)
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−            [array addObject:[NSNumber numberWithUnsignedInt:(colors[i++] & 0x00FFFFFF)]];
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−
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−        cachedColors = [[NSArray arrayWithArray:array] retain];
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−        [array release];
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−    }
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−    return cachedColors;
+
−}
+
−
+
−+(NSInteger) randomPort {
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−    srandom(time(NULL));
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−    NSInteger res = (random() % 64511) + 1024;
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−    return (res == NETGAME_DEFAULT_PORT) ? [HWUtils randomPort] : res;
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−}
+
−
+
−+(BOOL) isNetworkReachable {
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−    // Create zero addy
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−    struct sockaddr_in zeroAddress;
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−    bzero(&zeroAddress, sizeof(zeroAddress));
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−    zeroAddress.sin_len = sizeof(zeroAddress);
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−    zeroAddress.sin_family = AF_INET;
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−
+
−    // Recover reachability flags
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−    SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
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−    SCNetworkReachabilityFlags flags;
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−
+
−    BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
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−    CFRelease(defaultRouteReachability);
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−
+
−    if (!didRetrieveFlags) {
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−        NSLog(@"Error. Could not recover network reachability flags");
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−        return NO;
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−    }
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−
+
−    BOOL isReachable = flags & kSCNetworkFlagsReachable;
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−    BOOL needsConnection = flags & kSCNetworkFlagsConnectionRequired;
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−    BOOL nonWiFi = flags & kSCNetworkReachabilityFlagsTransientConnection;
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−
+
−    NSURL *testURL = [NSURL URLWithString:@"http://www.apple.com/"];
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−    NSURLRequest *testRequest = [NSURLRequest requestWithURL:testURL
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−                                                 cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
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−                                             timeoutInterval:20.0];
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−    NSURLConnection *testConnection = [[NSURLConnection alloc] initWithRequest:testRequest delegate:nil];
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−    BOOL testResult = testConnection ? YES : NO;
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−    [testConnection release];
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−
+
−    return ((isReachable && !needsConnection) || nonWiFi) ? testResult : NO;
+
−}
+
−
+
−+(void) releaseCache {
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−    releaseAndNil(cachedModel);
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−    releaseAndNil(cachedColors);
+
−}
+
−
+
−@end