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fb87ee96d7
When mount entry contains only four fields and have more then one space or
tab at the and, mp.mnt_freq and mp.mnt_passno will be set to some specific
values as side effect from parsing of previus mount entry. It is because
sscanf(""," %d %d ", &a, &b) returns -1, but this case is unprocessed.
Values of mp.mnt_freq and mp.mnt_passno stays unchanged. This patch is
attempt to fix described issue by removing trailing tabs and spaces.
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/* Test case by Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
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and Ulrich Drepper <drepper@cygnus.com>. */
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#include <mntent.h>
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#include <stdio.h>
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#include <string.h>
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int
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main (int argc, char *argv[])
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{
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int result = 0;
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struct mntent mef;
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struct mntent *mnt = &mef;
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FILE *fp;
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mef.mnt_fsname = strdupa ("/dev/hda1");
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mef.mnt_dir = strdupa ("/some dir");
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mef.mnt_type = strdupa ("ext2");
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mef.mnt_opts = strdupa ("defaults");
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mef.mnt_freq = 1;
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mef.mnt_passno = 2;
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if (hasmntopt (mnt, "defaults"))
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printf ("Found!\n");
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else
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{
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printf ("Didn't find it\n");
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result = 1;
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}
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fp = tmpfile ();
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if (fp == NULL)
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{
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printf ("Cannot open temporary file: %m\n");
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result = 1;
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}
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else
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{
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char buf[1024];
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/* Write the name entry. */
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addmntent (fp, &mef);
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/* Prepare for reading. */
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rewind (fp);
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/* First, read it raw. */
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if (fgets (buf, sizeof (buf), fp) == NULL)
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{
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printf ("Cannot read temporary file: %m");
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result = 1;
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}
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else
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if (strcmp (buf, "/dev/hda1 /some\\040dir ext2 defaults 1 2\n") != 0)
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{
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puts ("Raw file data not correct");
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result = 1;
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}
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/* Prepare for reading, part II. */
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rewind (fp);
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/* Now read it cooked. */
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mnt = getmntent (fp);
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if (strcmp (mnt->mnt_fsname, "/dev/hda1") != 0
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|| strcmp (mnt->mnt_dir, "/some dir") != 0
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|| strcmp (mnt->mnt_type, "ext2") != 0
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|| strcmp (mnt->mnt_opts, "defaults") != 0
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|| mnt->mnt_freq != 1
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|| mnt->mnt_passno != 2)
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{
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puts ("Error while reading written entry back in");
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result = 1;
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}
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/* Part III: Entry with whitespaces at the end of a line. */
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rewind (fp);
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fputs ("/foo\\040dir /bar\\040dir auto bind \t \n", fp);
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rewind (fp);
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mnt = getmntent (fp);
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if (strcmp (mnt->mnt_fsname, "/foo dir") != 0
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|| strcmp (mnt->mnt_dir, "/bar dir") != 0
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|| strcmp (mnt->mnt_type, "auto") != 0
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|| strcmp (mnt->mnt_opts, "bind") != 0
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|| mnt->mnt_freq != 0
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|| mnt->mnt_passno != 0)
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{
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puts ("Error while reading entry with trailing whitespaces");
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result = 1;
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}
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}
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return result;
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}
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