fstab check for jailbroken iOS devices

gistfile1.c

#include <sys/stat.h>

static inline int
fstab_check(void)
__attribute__((always_inline));

int fstab_check(void) {
    struct stat sb;
    
    int result = 1;
    
#if TARGET_IPHONE_SIMULATOR
    NSLog(@"fstab_check -> Running on the simulator!");
    result = 0;
#else
    stat("/etc/fstab", &sb);
    
    long long size = sb.st_size;
    
    if ([[[UIDevice currentDevice] systemVersion] compare:@"6.0" options:NSNumericSearch] == NSOrderedSame) {
        if (size == 80) {
            result = 0;
        }
    } else {
        
    }

    if ([[[UIDevice currentDevice] systemVersion] compare:@"5.0" options:NSNumericSearch] == NSOrderedSame) {
        if (size == 80) {
            result = 0;
        }
    }
    
    if ([[[UIDevice currentDevice] systemVersion] compare:@"5.1" options:NSNumericSearch] == NSOrderedSame) {
        if (size == 80) {
            result = 0;
        }
    }
    
    if ([[[UIDevice currentDevice] systemVersion] compare:@"5.1.1" options:NSNumericSearch] == NSOrderedSame) {
        if (size == 80) {
            result = 0;
        }
    }
#endif
    
    return result;
}