testing/test-cases/dlopen-realpath.dtest/main.c

   1
   2 // BUILD:  $CC main.c -o $BUILD_DIR/dlopen-realpath.exe
   3 // BUILD:  $SYMLINK ./IOKit.framework/IOKit  $BUILD_DIR/IOKit
   4 // BUILD:  $SYMLINK /System/Library/Frameworks/IOKit.framework  $BUILD_DIR/IOKit.framework
   5
   6 //FIXME: Use something besides IOKit so we do not need to copy it into the chroot
   7 // R:  DYLD_FALLBACK_LIBRARY_PATH=/baz  ./dlopen-realpath.exe
   8
   9 #include <stdio.h>
  10 #include <dlfcn.h>
  11
  12 #include "test_support.h"
  13
  14 static void tryImage(const char* path)
  15 {
  16     void* handle = dlopen(path, RTLD_LAZY);
  17     if ( handle == NULL ) {
  18         FAIL("dlerror(\"%s\"): %s", path, dlerror());
  19     }
  20
  21     int result = dlclose(handle);
  22     if ( result != 0 ) {
  23         FAIL("dlclose(\"%s\"): %s", path, dlerror());
  24     }
  25 }
  26
  27
  28
  29 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  30     tryImage("./IOKit.framework/IOKit");
  31     tryImage("./././IOKit/../IOKit.framework/IOKit");
  32     tryImage("./IOKit");
  33
  34     // Also try libSystem which has an alias in the OS to /usr/lib/libSystem.B.dylib
  35     tryImage("/usr/lib/libSystem.dylib");
  36
  37     // Also try using non-canonical path
  38     // This requires DYLD_FALLBACK_LIBRARY_PATH to be disabled, otherwise it is found that way
  39     tryImage("//usr/lib/libSystem.dylib");
  40     tryImage("/usr/./lib/libSystem.dylib");
  41
  42     PASS("Success");
  43 }
  44