posix/bug-glob1.c

   1 /* Test case for globbing dangling symlink.  By Ulrich Drepper.  */
   2 #include <errno.h>
   3 #include <error.h>
   4 #include <glob.h>
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <unistd.h>
   9
  10
  11 static void prepare (int argc, char *argv[]);
  12 #define PREPARE prepare
  13 static int do_test (void);
  14 #define TEST_FUNCTION do_test ()
  15
  16 #include "../test-skeleton.c"
  17
  18
  19 static char *fname;
  20
  21 static void
  22 prepare (int argc, char *argv[])
  23 {
  24   if (argc < 2)
  25     error (EXIT_FAILURE, 0, "missing argument");
  26
  27   size_t len = strlen (argv[1]);
  28   static const char ext[] = "globXXXXXX";
  29   fname = malloc (len + 1 + sizeof (ext));
  30   if (fname == NULL)
  31     error (EXIT_FAILURE, errno, "cannot create temp file");
  32   strcpy (stpcpy (stpcpy (fname, argv[1]), "/"), ext);
  33   fname = mktemp (fname);
  34   if (fname == NULL || *fname == '\0')
  35     error (EXIT_FAILURE, errno, "cannot create temp file name");
  36   if (symlink ("bug-glob1-does-not-exist", fname) != 0)
  37     error (EXIT_FAILURE, errno, "cannot create symlink");
  38   add_temp_file (fname);
  39 }
  40
  41
  42 static int
  43 do_test (void)
  44 {
  45   glob_t gl;
  46   int retval = 0;
  47   int e;
  48
  49   e = glob (fname, 0, NULL, &gl);
  50   if (e == 0)
  51     {
  52       printf ("glob(\"%s\") succeeded\n", fname);
  53       retval = 1;
  54     }
  55   globfree (&gl);
  56
  57   size_t fnamelen = strlen (fname);
  58   char buf[fnamelen + 2];
  59
  60   strcpy (buf, fname);
  61   buf[fnamelen - 1] = '?';
  62   e = glob (buf, 0, NULL, &gl);
  63   if (e == 0)
  64     {
  65       printf ("glob(\"%s\") succeeded\n", buf);
  66       retval = 1;
  67     }
  68   globfree (&gl);
  69
  70   strcpy (buf, fname);
  71   buf[fnamelen] = '*';
  72   buf[fnamelen + 1] = '\0';
  73   e = glob (buf, 0, NULL, &gl);
  74   if (e == 0)
  75     {
  76       printf ("glob(\"%s\") succeeded\n", buf);
  77       retval = 1;
  78     }
  79   globfree (&gl);
  80
  81   return retval;
  82 }