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jailbreak: fix crash when launched executable is different from the bundle main executable

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This commit is contained in:
osy
2024-11-24 18:29:03 -08:00
parent 530af2fa4f
commit 5bd541b6c9
1 changed files with 9 additions and 2 deletions
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Services/UTMJailbreak.m
+9 -2
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@@ -170,13 +170,20 @@ static NSDictionary *app_entitlements(void) {
if (cs_lc == NULL)
return nil;
NSString *fname = [NSString stringWithCString:dl_info.dli_fname encoding:NSUTF8StringEncoding];
NSURL *fpath = [NSURL fileURLWithPath:fname];
// Read the code signature off disk, as it's apparently not loaded into memory
NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingFromURL:NSBundle.mainBundle.executableURL error:nil];
if (fileHandle == nil)
NSError *err = nil;
NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingFromURL:fpath error:&err];
if (fileHandle == nil || err != nil)
return nil;
[fileHandle seekToFileOffset:cs_lc->dataoff];
NSData *csData = [fileHandle readDataOfLength:cs_lc->datasize];
[fileHandle closeFile];
if (csData.length == 0) {
return nil;
}
const struct cs_superblob *cs = csData.bytes;
if (ntohl(cs->magic) != 0xfade0cc0)
return nil;