posix/tst-execvp4.c

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <unistd.h>
   6 #include <sys/stat.h>
   7
   8 #ifndef EXECVP
   9 # define EXECVP(file, argv)  execvp (file, argv)
  10 #endif
  11
  12 static int
  13 do_test (void)
  14 {
  15   char buf[40] = "/usr/bin/does-not-exist";
  16   size_t stemlen = strlen (buf);
  17   struct stat64 st;
  18   int cnt = 0;
  19   while (stat64 (buf, &st) != -1 || errno != ENOENT
  20          || stat64 (buf + 4, &st) != -1 || errno != ENOENT)
  21     {
  22       if (cnt++ == 100)
  23         {
  24           puts ("cannot find a unique file name");
  25           return 0;
  26         }
  27
  28       strcpy (buf + stemlen, ".XXXXXX");
  29       mktemp (buf);
  30     }
  31
  32   unsetenv ("PATH");
  33   char *argv[] = { buf + 9, NULL };
  34   EXECVP (argv[0], argv);
  35   return 0;
  36 }
  37
  38 #define TEST_FUNCTION do_test ()
  39 #include "../test-skeleton.c"