testing/test-cases/dlopen-fail-cleanly.dtest/main.c

   1
   2 // BUILD:  $CC c.c -dynamiclib -o $TEMP_DIR/libcextra.dylib -install_name $RUN_DIR/libc.dylib -DEXTRA_SYMBOL=1
   3 // BUILD:  $CC c.c -dynamiclib -o $BUILD_DIR/libc.dylib -install_name $RUN_DIR/libc.dylib
   4 // BUILD:  $CC b.m -dynamiclib -o $BUILD_DIR/libb.dylib -install_name $RUN_DIR/libb.dylib $TEMP_DIR/libcextra.dylib -framework Foundation
   5 // BUILD:  $CC a.c -dynamiclib -o $BUILD_DIR/liba.dylib -install_name $RUN_DIR/liba.dylib $BUILD_DIR/libb.dylib
   6 // BUILD:  $CC main.c -DRUN_DIR="$RUN_DIR" -o $BUILD_DIR/dlopen-fail-cleanly.exe
   7
   8 // RUN:  ./dlopen-fail-cleanly.exe
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <dlfcn.h>
  13 #include <mach-o/dyld.h>
  14
  15
  16 int main()
  17 {
  18     printf("[BEGIN] dlopen-fail-cleanly\n");
  19
  20     // dlopen dylib chain that should fail
  21     void* handle = dlopen(RUN_DIR "/liba.dylib", RTLD_NOW);
  22     if ( handle != NULL ) {
  23         printf("[FAIL]  dlopen-fail-cleanly dlopen(liba.dylib) expected to fail but did not\n");
  24         return 0;
  25     }
  26
  27     // iterate loaded images and make sure no residue from failed dlopen
  28     const char* foundPath = NULL;
  29     int count = _dyld_image_count();
  30     for (int i=0; i < count; ++i) {
  31         const char* path = _dyld_get_image_name(i);
  32         //printf("path[%2d]=%s\n", i, path);
  33         if ( strstr(path, RUN_DIR "/lib") != NULL ) {
  34             printf("[FAIL]  dlopen-fail-cleanly: found unexpected loaded image: %s\n", path);
  35             return 0;
  36         }
  37     }
  38
  39     printf("[PASS]  dlopen-fail-cleanly\n");
  40         return 0;
  41 }
  42