[Bug 1041377] Re: mountall ignores NFS mount option "timeo"

[Dave Chiluk]

** Changed in: mountall (Ubuntu Quantal)
       Status: New => Confirmed

** Changed in: mountall (Ubuntu Precise)
       Status: New => Incomplete

** Changed in: mountall (Ubuntu Precise)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1041377

Title:
  mountall ignores NFS mount option "timeo"

Status in “mountall” package in Ubuntu:
  Triaged
Status in “mountall” source package in Precise:
  Confirmed
Status in “mountall” source package in Quantal:
  Confirmed
Status in “mountall” source package in Raring:
  Triaged

Bug description:
  If the mount option "timeo" is specified for an NFS mount in /etc/fstab,
  mountall does not pass it to mount.nfs. The bug is in the function
  cut_options() in mountall.c. It is called with the following arguments:

          opts = cut_options (NULL, mnt, "showthrough", "optional",
                              "bootwait", "nobootwait", "timeout",
                              NULL);

  Although it should only remove the specified options, it also removes
  any option that is a prefix of one of those, e.g. "timeo".

  The call to strncmp() in line 661 compares only up to the length of the
  option from the fstab, without comparing the length of both strings.
  Hence I propose the following patch:

  --- mountall-2.36/src/mountall.c.orig   2012-08-24 20:25:07.445892095 +0200
  +++ mountall-2.36/src/mountall.c        2012-08-24 21:29:10.098595843 +0200
  @@ -658,7 +658,8 @@
   
                  va_copy (options, args);
                  while ((option = va_arg (options, const char *)) != NULL)
  {
  -                       if (j && ! strncmp (opts + i, option, j))
  +                       if (j && option[j] == '\0'
  +                             && ! strncmp (opts + i, option, j))
                                  break;
                  }
                  va_end (options);

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