Use dlsym(), not struct Baton.

[cycript.git] / Trampoline.t.cpp

diff --git a/Trampoline.t.cpp b/Trampoline.t.cpp
index ad1f5156643b77a75f5eacefb634c690b3793843..a0f5aef27425d908085f05258ac810dbccdad2ac 100644 (file)
--- a/Trampoline.t.cpp
+++ b/Trampoline.t.cpp
@@ -1,40 +1,22 @@
-/* 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
@@ -46,22 +28,40 @@
 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);
 
     CYHandleServer(baton->pid);
 
-    return arg;
+    return NULL;
 }
 
 static void $bzero(void *data, size_t size) {
@@ -82,13 +82,13 @@ extern "C" void Start(Baton *baton) {
     dlset(baton, pthread_create, "pthread_create");
 
     pthread_t thread;
-    baton->pthread_create(&thread, NULL, &Routine, baton);
+    pthread_create(&thread, NULL, &Routine, baton);
 
     int (*pthread_join)(pthread_t, void **);
     dlset(baton, pthread_join, "pthread_join");
 
     void *result;
-    baton->pthread_join(thread, &result);
+    pthread_join(thread, &result);
 
     mach_port_t (*mach_thread_self)();
     dlset(baton, mach_thread_self, "mach_thread_self");
@@ -96,5 +96,5 @@ extern "C" void Start(Baton *baton) {
     kern_return_t (*thread_terminate)(thread_act_t);
     dlset(baton, thread_terminate, "thread_terminate");
 
-    baton->thread_terminate(baton->mach_thread_self());
+    thread_terminate(mach_thread_self());
 }