dyld-353.2.1.tar.gz

[apple/dyld.git] / unit-tests / test-cases / interpose-dynamic-basic / main.c

diff --git a/unit-tests/test-cases/interpose-dynamic-basic/main.c b/unit-tests/test-cases/interpose-dynamic-basic/main.c
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+++ b/unit-tests/test-cases/interpose-dynamic-basic/main.c
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+/*
+ * Copyright (c) 2014 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+#include <stdio.h>  // fprintf(), NULL
+#include <stdlib.h> // exit(), EXIT_SUCCESS
+#include <string.h>
+#include <dlfcn.h>
+#include <mach-o/dyld_priv.h>
+
+extern const struct mach_header __dso_handle;
+
+
+#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
+
+typedef char* (*DupProc)(const char*);
+
+char* mystrdup(const char* in)
+{
+       return "hello";
+}
+
+static const struct dyld_interpose_tuple sTable[] = { {&mystrdup, &strdup} };
+
+int main()
+{
+       const char* preCall = strdup("123");
+  DupProc preProc = &strdup;
+  
+  dyld_dynamic_interpose(&__dso_handle, sTable, 1);
+  
+       const char* postCall = strdup("123");
+  DupProc postProc = &strdup;
+  
+  if ( strcmp(preCall, "123") != 0 ) {
+      FAIL("interpose-dynamic-basic control strdup failed");
+      return EXIT_SUCCESS;
+  }
+  
+  if ( strcmp(postCall, "hello") != 0 ) {
+      FAIL("interpose-dynamic-basic interposed lazy strdup failed");
+      return EXIT_SUCCESS;
+  }
+  
+  if ( preProc == postProc ) {
+      FAIL("interpose-dynamic-basic interposed non-lazy strdup failed");
+      return EXIT_SUCCESS;
+  }
+    
+  PASS("interpose-dynamic-basic");
+  
+       return EXIT_SUCCESS;
+}