tests/readlink.c

   1 /* test whether readlink returns a short buffer incorrectly.
   2    We need to return 0 in case readlink is *broken* here - this is because our waf
   3    CHECK_CODE function does only allow generating defines in case the test succeeds
   4 */
   5
   6 #if defined(HAVE_UNISTD_H)
   7 #include <unistd.h>
   8 #endif
   9
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <fcntl.h>
  13
  14 #define DATA "readlink.test"
  15 #define FNAME "rdlnk.file"
  16
  17 int main(void)
  18 {
  19         char buf[7];
  20         int ret;
  21         ssize_t rl_ret;
  22
  23         unlink(FNAME);
  24         ret = symlink(DATA, FNAME);
  25         if (ret == -1) {
  26                 exit(0);
  27         }
  28
  29         rl_ret = readlink(FNAME, buf, sizeof(buf));
  30         if (rl_ret == -1) {
  31                 unlink(FNAME);
  32                 exit(0);
  33         }
  34         unlink(FNAME);
  35         exit(1);
  36 }