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   FILE *fp;
  15
  16   mef.mnt_fsname = strdupa ("/dev/hda1");
  17   mef.mnt_dir = strdupa ("/some dir");
  18   mef.mnt_type = strdupa ("ext2");
  19   mef.mnt_opts = strdupa ("defaults");
  20   mef.mnt_freq = 1;
  21   mef.mnt_passno = 2;
  22
  23   if (hasmntopt (mnt, "defaults"))
  24     printf ("Found!\n");
  25   else
  26     {
  27       printf ("Didn't find it\n");
  28       result = 1;
  29     }
  30
  31   fp = tmpfile ();
  32   if (fp == NULL)
  33     {
  34       printf ("Cannot open temporary file: %m\n");
  35       result = 1;
  36     }
  37   else
  38     {
  39       char buf[1024];
  40
  41       /* Write the name entry.  */
  42       addmntent (fp, &mef);
  43
  44       /* Prepare for reading.  */
  45       rewind (fp);
  46
  47       /* First, read it raw.  */
  48       if (fgets (buf, sizeof (buf), fp) == NULL)
  49         {
  50           printf ("Cannot read temporary file: %m");
  51           result = 1;
  52         }
  53       else
  54         if (strcmp (buf, "/dev/hda1 /some\\040dir ext2 defaults 1 2\n") != 0)
  55           {
  56             puts ("Raw file data not correct");
  57             result = 1;
  58           }
  59
  60       /* Prepare for reading, part II.  */
  61       rewind (fp);
  62
  63       /* Now read it cooked.  */
  64       mnt = getmntent (fp);
  65
  66       if (strcmp (mnt->mnt_fsname, "/dev/hda1") != 0
  67           || strcmp (mnt->mnt_dir, "/some dir") != 0
  68           || strcmp (mnt->mnt_type, "ext2") != 0
  69           || strcmp (mnt->mnt_opts, "defaults") != 0
  70           || mnt->mnt_freq != 1
  71           || mnt->mnt_passno != 2)
  72         {
  73           puts ("Error while reading written entry back in");
  74           result = 1;
  75         }
  76     }
  77
  78   return result;
  79 }