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 + sizeof (ext));
  30   if (fname == NULL)
  31     error (EXIT_FAILURE, errno, "cannot create temp file");
  32  again:
  33   strcpy (stpcpy (fname, argv[1]), ext);
  34   fname = mktemp (fname);
  35   if (fname == NULL || *fname == '\0')
  36     error (EXIT_FAILURE, errno, "cannot create temp file name");
  37   if (symlink ("bug-glob1-does-not-exist", fname) != 0)
  38     {
  39       if (errno == EEXIST)
  40         goto again;
  41
  42       error (EXIT_FAILURE, errno, "cannot create symlink");
  43     }
  44   add_temp_file (fname);
  45 }
  46
  47
  48 static int
  49 do_test (void)
  50 {
  51   glob_t gl;
  52   int retval = 0;
  53   int e;
  54
  55   e = glob (fname, 0, NULL, &gl);
  56   if (e == 0)
  57     {
  58       printf ("glob(\"%s\") succeeded\n", fname);
  59       retval = 1;
  60     }
  61   globfree (&gl);
  62
  63   size_t fnamelen = strlen (fname);
  64   char buf[fnamelen + 2];
  65
  66   strcpy (buf, fname);
  67   buf[fnamelen - 1] = '?';
  68   e = glob (buf, 0, NULL, &gl);
  69   if (e == 0)
  70     {
  71       printf ("glob(\"%s\") succeeded\n", buf);
  72       retval = 1;
  73     }
  74   globfree (&gl);
  75
  76   strcpy (buf, fname);
  77   buf[fnamelen] = '*';
  78   buf[fnamelen + 1] = '\0';
  79   e = glob (buf, 0, NULL, &gl);
  80   if (e == 0)
  81     {
  82       printf ("glob(\"%s\") succeeded\n", buf);
  83       retval = 1;
  84     }
  85   globfree (&gl);
  86
  87   return retval;
  88 }