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

   1
   2 // BUILD:  $CC foo.c -dynamiclib -install_name $RUN_DIR/libfoo.dylib -o $BUILD_DIR/libfoo.dylib
   3 // BUILD:  $SYMLINK libfoo.dylib $BUILD_DIR/libfoo-symlink.dylib
   4 // BUILD:  $CC main.c -o $BUILD_DIR/dlopen-symlink.exe -DRUN_DIR="$RUN_DIR"
   5
   6 // RUN:  ./dlopen-symlink.exe
   7
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include <dlfcn.h>
  12 #include <mach-o/dyld.h>
  13 #include <mach-o/dyld_priv.h>
  14
  15 #include "test_support.h"
  16
  17 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  18     // call dlopen() with a path that is a symlink
  19     void* handle = dlopen(RUN_DIR "/libfoo-symlink.dylib", RTLD_LAZY);
  20     if ( handle == NULL ) {
  21         FAIL("dlerror(): %s", dlerror());
  22     }
  23
  24     // walk images to see if path was converted to real path
  25     const char* foundPath = NULL;
  26     int count = _dyld_image_count();
  27     for (int i=0; i < count; ++i) {
  28         const char* path = _dyld_get_image_name(i);
  29         LOG("path[%2d]=%s", i, path);
  30         if ( strstr(path, "libfoo") != NULL ) {
  31             if ( foundPath == NULL ) {
  32                 foundPath = path;
  33             }
  34             else {
  35                 FAIL("More than one libfoo found");
  36             }
  37         }
  38     }
  39     if ( foundPath == NULL ) {
  40         FAIL("No libfoo found");
  41     }
  42     if ( strstr(foundPath, "libfoo-symlink") != NULL ) {
  43         FAIL("Path is symlink not real path: %s", foundPath);
  44     }
  45
  46     PASS("Success");
  47 }
  48