From bc541b4b68d01fae2f78a8fcfe7c0717a8edbb76 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 28 Jul 1999 04:35:08 +0000
Subject: [PATCH] Add test case for addmntent and getmntent.

---
 misc/tst-mntent.c | 59 ++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 56 insertions(+), 3 deletions(-)

diff --git a/misc/tst-mntent.c b/misc/tst-mntent.c
index d6f374385f..ae967670f9 100644
--- a/misc/tst-mntent.c
+++ b/misc/tst-mntent.c
@@ -1,4 +1,5 @@
-/* Test case by Horst von Brand <vonbrand@sleipnir.valparaiso.cl>.  */
+/* Test case by Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
+   and Ulrich Drepper <drepper@cygnus.com>.  */
 #include <mntent.h>
 #include <stdio.h>
 #include <string.h>
@@ -10,13 +11,15 @@ main (int argc, char *argv[])
   int result = 0;
   struct mntent mef;
   struct mntent *mnt = &mef;
+  char *name;
+  FILE *fp;
 
   mef.mnt_fsname = strdupa ("/dev/hda1");
-  mef.mnt_dir = strdupa ("/");
+  mef.mnt_dir = strdupa ("/some dir");
   mef.mnt_type = strdupa ("ext2");
   mef.mnt_opts = strdupa ("defaults");
   mef.mnt_freq = 1;
-  mef.mnt_passno = 1;
+  mef.mnt_passno = 2;
 
   if (hasmntopt (mnt, "defaults"))
     printf ("Found!\n");
@@ -26,5 +29,55 @@ main (int argc, char *argv[])
       result = 1;
     }
 
+  name = tmpnam (NULL);
+  fp = fopen (name, "w+");
+  if (fp == NULL)
+    {
+      printf ("Cannot open temporary file: %m\n");
+      result = 1;
+    }
+  else
+    {
+      char buf[1024];
+
+      /* Write the name entry.  */
+      addmntent (fp, &mef);
+
+      /* Prepare for reading.  */
+      rewind (fp);
+
+      /* First, read it raw.  */
+      if (fgets (buf, sizeof (buf), fp) == NULL)
+	{
+	  printf ("Cannot read temporary file: %m");
+	  result = 1;
+	}
+      else
+	if (strcmp (buf, "/dev/hda1 /some\\040dir ext2 defaults 1 2\n") != 0)
+	  {
+	    puts ("Raw file data not correct");
+	    result = 1;
+	  }
+
+      /* Prepare for reading, part II.  */
+      rewind (fp);
+
+      /* Now read it cooked.  */
+      mnt = getmntent (fp);
+
+      if (strcmp (mnt->mnt_fsname, "/dev/hda1") != 0
+	  || strcmp (mnt->mnt_dir, "/some dir") != 0
+	  || strcmp (mnt->mnt_type, "ext2") != 0
+	  || strcmp (mnt->mnt_opts, "defaults") != 0
+	  || mnt->mnt_freq != 1
+	  || mnt->mnt_passno != 2)
+	{
+	  puts ("Error while reading written entry back in");
+	  result = 1;
+	}
+
+      remove (name);
+    }
+
   return result;
 }