misc/tst-mntent.c

   1 /* Test case by Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
   2    and Ulrich Drepper <drepper@cygnus.com>.  */
   3 #include <mntent.h>
   4 #include <stdio.h>
   5 #include <string.h>
   6
   7
   8 int
   9 main (int argc, char *argv[])
  10 {
  11   int result = 0;
  12   struct mntent mef;
  13   struct mntent *mnt = &mef;
  14   char *name;
  15   FILE *fp;
  16
  17   mef.mnt_fsname = strdupa ("/dev/hda1");
  18   mef.mnt_dir = strdupa ("/some dir");
  19   mef.mnt_type = strdupa ("ext2");
  20   mef.mnt_opts = strdupa ("defaults");
  21   mef.mnt_freq = 1;
  22   mef.mnt_passno = 2;
  23
  24   if (hasmntopt (mnt, "defaults"))
  25     printf ("Found!\n");
  26   else
  27     {
  28       printf ("Didn't find it\n");
  29       result = 1;
  30     }
  31
  32   name = tmpnam (NULL);
  33   fp = fopen (name, "w+");
  34   if (fp == NULL)
  35     {
  36       printf ("Cannot open temporary file: %m\n");
  37       result = 1;
  38     }
  39   else
  40     {
  41       char buf[1024];
  42
  43       /* Write the name entry.  */
  44       addmntent (fp, &mef);
  45
  46       /* Prepare for reading.  */
  47       rewind (fp);
  48
  49       /* First, read it raw.  */
  50       if (fgets (buf, sizeof (buf), fp) == NULL)
  51         {
  52           printf ("Cannot read temporary file: %m");
  53           result = 1;
  54         }
  55       else
  56         if (strcmp (buf, "/dev/hda1 /some\\040dir ext2 defaults 1 2\n") != 0)
  57           {
  58             puts ("Raw file data not correct");
  59             result = 1;
  60           }
  61
  62       /* Prepare for reading, part II.  */
  63       rewind (fp);
  64
  65       /* Now read it cooked.  */
  66       mnt = getmntent (fp);
  67
  68       if (strcmp (mnt->mnt_fsname, "/dev/hda1") != 0
  69           || strcmp (mnt->mnt_dir, "/some dir") != 0
  70           || strcmp (mnt->mnt_type, "ext2") != 0
  71           || strcmp (mnt->mnt_opts, "defaults") != 0
  72           || mnt->mnt_freq != 1
  73           || mnt->mnt_passno != 2)
  74         {
  75           puts ("Error while reading written entry back in");
  76           result = 1;
  77         }
  78
  79       remove (name);
  80     }
  81
  82   return result;
  83 }