From 28d9b32a5ec50a459b03fc06ce95f9a97df0439e Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Sun, 25 May 2014 02:39:39 -0700
Subject: Make root->mobile preference shift exception-safe.

---
 MobileCydia.mm | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

(limited to 'MobileCydia.mm')

diff --git a/MobileCydia.mm b/MobileCydia.mm
index 5c081bd..10f2de8 100644
--- a/MobileCydia.mm
+++ b/MobileCydia.mm
@@ -9903,10 +9903,15 @@ Class $CFXPreferencesPropertyListSource;
 MSHook(BOOL, CFXPreferencesPropertyListSource$_backingPlistChangedSinceLastSync, CFXPreferencesPropertyListSource *self, SEL _cmd) {
     NSURL *&url(MSHookIvar<NSURL *>(self, "_url")), *old(url);
     NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
+
     url = MobilizeURL(url);
-    BOOL value(_CFXPreferencesPropertyListSource$_backingPlistChangedSinceLastSync(self, _cmd));
-    //NSLog(@"%@ %s", [url absoluteString], value ? "YES" : "NO");
-    url = old;
+    BOOL value; @try {
+        value = _CFXPreferencesPropertyListSource$_backingPlistChangedSinceLastSync(self, _cmd);
+        //NSLog(@"CFX %@ %s", [url absoluteString], value ? "YES" : "NO");
+    } @finally {
+        url = old;
+    }
+
     [pool release];
     return value;
 }
@@ -9914,10 +9919,15 @@ MSHook(BOOL, CFXPreferencesPropertyListSource$_backingPlistChangedSinceLastSync,
 MSHook(void *, CFXPreferencesPropertyListSource$createPlistFromDisk, CFXPreferencesPropertyListSource *self, SEL _cmd) {
     NSURL *&url(MSHookIvar<NSURL *>(self, "_url")), *old(url);
     NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
+
     url = MobilizeURL(url);
-    void *value(_CFXPreferencesPropertyListSource$createPlistFromDisk(self, _cmd));
-    //NSLog(@"%@ %@", [url absoluteString], value);
-    url = old;
+    void *value; @try {
+        value = _CFXPreferencesPropertyListSource$createPlistFromDisk(self, _cmd);
+        //NSLog(@"CFX %@ %@", [url absoluteString], value);
+    } @finally {
+        url = old;
+    }
+
     [pool release];
     return value;
 }
-- 
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