Generalized fix for injector.

[cycript.git] / Trampoline.t.cpp

diff --git a/Trampoline.t.cpp b/Trampoline.t.cpp
index c228259e357ed3715a8d142eb8ec5f9848815dd9..5bf77cea2339d6c969452da851fcd40ffd9daa31 100644 (file)
--- a/Trampoline.t.cpp
+++ b/Trampoline.t.cpp
@@ -1,66 +1,101 @@
-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009  Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010  Jay Freeman (saurik)
 */
 
-/* Modified BSD License {{{ */
+/* GNU Lesser General Public License, Version 3 {{{ */
 /*
- *        Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
+ * Cycript is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
  *
- * 1. Redistributions of source code must retain the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer in the documentation
- *    and/or other materials provided with the
- *    distribution.
- * 3. The name of the author may not be used to endorse
- *    or promote products derived from this software
- *    without specific prior written permission.
+ * Cycript is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+**/
 /* }}} */
 
 #define _PTHREAD_ATTR_T
 #include <pthread_internals.h>
 
+#include "Standard.hpp"
 #include "Baton.hpp"
 
-void *Routine(void *);
+template <typename Type_>
+static _finline void dlset(Baton *baton, Type_ &function, const char *name, void *handle = RTLD_DEFAULT) {
+    function = reinterpret_cast<Type_>(baton->dlsym(handle, name));
+    if (function == NULL)
+        baton->dlerror();
+}
+
+#define Framework(framework) \
+    "/System/Library/Frameworks/" #framework ".framework/" #framework
+
+void *Routine(void *arg) {
+    Baton *baton(reinterpret_cast<Baton *>(arg));
+
+    void *(*dlopen)(const char *, int);
+    dlset(baton, dlopen, "dlopen");
+
+    if (baton->dlsym(RTLD_DEFAULT, "JSEvaluateScript") == NULL)
+        dlopen(Framework(JavaScriptCore), RTLD_GLOBAL | RTLD_LAZY);
+
+    void *(*objc_getClass)(const char *);
+    dlset(baton, objc_getClass, "objc_getClass");
+
+    if (objc_getClass("WebUndefined") == NULL)
+        dlopen(Framework(WebKit), RTLD_GLOBAL | RTLD_LAZY);
+
+    void *handle(dlopen(baton->library, RTLD_LAZY | RTLD_LOCAL));
+    if (handle == NULL) {
+        baton->dlerror();
+        return NULL;
+    }
+
+    void (*CYHandleServer)(pid_t);
+    dlset(baton, CYHandleServer, "CYHandleServer", handle);
+
+    if (CYHandleServer != NULL)
+        CYHandleServer(baton->pid);
+
+    return NULL;
+}
+
+static void $bzero(void *data, size_t size) {
+    char *bytes(reinterpret_cast<char *>(data));
+    for (size_t i(0); i != size; ++i)
+        bytes[i] = 0;
+}
 
 extern "C" void Start(Baton *baton) {
     struct _pthread self;
-    baton->_pthread_set_self(&self);
+    $bzero(&self, sizeof(self));
+
+    // this code comes from _pthread_set_self
+    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");
 
     pthread_t thread;
     baton->pthread_create(&thread, NULL, &Routine, baton);
 
-    void *result;
-    baton->pthread_join(thread, &result);
+    //int (*pthread_join)(pthread_t, void **);
+    //dlset(baton, pthread_join, "pthread_join");
 
-    baton->thread_terminate(baton->mach_thread_self());
-}
+    //void *result;
+    //baton->pthread_join(thread, &result);
 
-void *Routine(void *arg) {
-    Baton *baton(reinterpret_cast<Baton *>(arg));
-    void *handle(baton->dlopen(baton->library, RTLD_LAZY | RTLD_LOCAL));
-    void (*HandleServer)(pid_t) = reinterpret_cast<void (*)(pid_t)>(baton->dlsym(handle, "CYHandleServer"));
-    HandleServer(baton->pid);
-    return arg;
+    //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");
+
+    baton->thread_terminate(baton->mach_thread_self());
 }