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Better fcntl hook in SpringBoard #831

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Better fcntl hook in SpringBoard #831

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36 changes: 11 additions & 25 deletions BaseBin/rootlesshooks/SpringBoard.x
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Original file line number Diff line number Diff line change
Expand Up @@ -38,31 +38,17 @@ bool string_has_prefix(const char *str, const char* prefix)

%end

%hookf(int, fcntl, int fildes, int cmd, ...) {
if (cmd == F_SETPROTECTIONCLASS) {
char filePath[PATH_MAX];
if (fcntl(fildes, F_GETPATH, filePath) != -1) {
// Skip setting protection class on jailbreak apps, this doesn't work and causes snapshots to not be saved correctly
if (string_has_prefix(filePath, JBROOT_PATH_CSTRING("/var/mobile/Library/SplashBoard/Snapshots"))) {
return 0;
}
}
}

va_list a;
va_start(a, cmd);
const char *arg1 = va_arg(a, void *);
const void *arg2 = va_arg(a, void *);
const void *arg3 = va_arg(a, void *);
const void *arg4 = va_arg(a, void *);
const void *arg5 = va_arg(a, void *);
const void *arg6 = va_arg(a, void *);
const void *arg7 = va_arg(a, void *);
const void *arg8 = va_arg(a, void *);
const void *arg9 = va_arg(a, void *);
const void *arg10 = va_arg(a, void *);
va_end(a);
return %orig(fildes, cmd, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
int __fcntl(int fd, int cmd, long arg);
%hookf(int, __fcntl, int fd, int cmd, long arg)
{
if (cmd == F_SETPROTECTIONCLASS) {
char path[PATH_MAX];
if (%orig(fd, F_GETPATH, (long)path) != -1 && string_has_prefix(path, JBROOT_PATH_CSTRING("/var/mobile/Library/SplashBoard/Snapshots")))
{
return 0; // Skip setting protection class on jailbreak apps, this doesn't work and causes snapshots to not be saved correctly
}
}
return %orig(fd, cmd, arg);
}

void springboardInit(void)
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