From: Jay Freeman (saurik) <saurik@saurik.com>
Date: Fri, 20 May 2011 06:59:08 +0000 (+0000)
Subject: Generalized fix for injector.
X-Git-Tag: v0.9.437^0
X-Git-Url: https://git.saurik.com/cycript.git/commitdiff_plain/c98ea90dcfba4a6e699aa5f0989bbdd575c3b430

Generalized fix for injector.
---

diff --git a/Baton.hpp b/Baton.hpp
index cde04d2..bf048ba 100644
--- a/Baton.hpp
+++ b/Baton.hpp
@@ -26,6 +26,12 @@
 struct Baton {
     void (*__pthread_set_self)(pthread_t);
 
+    int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
+    int (*pthread_join)(pthread_t, void **);
+
+    mach_port_t (*mach_thread_self)();
+    kern_return_t (*thread_terminate)(thread_act_t);
+
     char *(*dlerror)();
     void *(*dlsym)(void *, const char *);
 
diff --git a/Mach/Inject.cpp b/Mach/Inject.cpp
index 29d1848..3f91398 100644
--- a/Mach/Inject.cpp
+++ b/Mach/Inject.cpp
@@ -48,6 +48,12 @@ void InjectLibrary(pid_t pid) {
 
     baton->__pthread_set_self = &__pthread_set_self;
 
+    baton->pthread_create = &pthread_create;
+    baton->pthread_join = &pthread_join;
+
+    baton->mach_thread_self = &mach_thread_self;
+    baton->thread_terminate = &thread_terminate;
+
     baton->dlerror = &dlerror;
     baton->dlsym = &dlsym;
 
diff --git a/Trampoline.t.cpp b/Trampoline.t.cpp
index a0f5aef..5bf77ce 100644
--- a/Trampoline.t.cpp
+++ b/Trampoline.t.cpp
@@ -59,7 +59,8 @@ void *Routine(void *arg) {
     void (*CYHandleServer)(pid_t);
     dlset(baton, CYHandleServer, "CYHandleServer", handle);
 
-    CYHandleServer(baton->pid);
+    if (CYHandleServer != NULL)
+        CYHandleServer(baton->pid);
 
     return NULL;
 }
@@ -78,23 +79,23 @@ extern "C" void Start(Baton *baton) {
     self.tsd[0] = &self;
     baton->__pthread_set_self(&self);
 
-    int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
-    dlset(baton, pthread_create, "pthread_create");
+    //int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
+    //dlset(baton, pthread_create, "pthread_create");
 
     pthread_t thread;
-    pthread_create(&thread, NULL, &Routine, baton);
+    baton->pthread_create(&thread, NULL, &Routine, baton);
 
-    int (*pthread_join)(pthread_t, void **);
-    dlset(baton, pthread_join, "pthread_join");
+    //int (*pthread_join)(pthread_t, void **);
+    //dlset(baton, pthread_join, "pthread_join");
 
-    void *result;
-    pthread_join(thread, &result);
+    //void *result;
+    //baton->pthread_join(thread, &result);
 
-    mach_port_t (*mach_thread_self)();
-    dlset(baton, mach_thread_self, "mach_thread_self");
+    //mach_port_t (*mach_thread_self)();
+    //dlset(baton, mach_thread_self, "mach_thread_self");
 
-    kern_return_t (*thread_terminate)(thread_act_t);
-    dlset(baton, thread_terminate, "thread_terminate");
+    //kern_return_t (*thread_terminate)(thread_act_t);
+    //dlset(baton, thread_terminate, "thread_terminate");
 
-    thread_terminate(mach_thread_self());
+    baton->thread_terminate(baton->mach_thread_self());
 }