bugfindutils - Bugs: bug #14922, find should show a warning on...

 
 

bug #14922: find should show a warning on unreadable mtab

Submitted by:  Andreas Metzler <ametzler>
Submitted on:  Sun 06 Nov 2005 11:03:35 AM UTC  
 
Category: findSeverity: 3 - Normal
Item Group: NoneStatus: Fixed
Privacy: PublicAssigned to: James Youngman <jay>
Originator Name: Open/Closed: Closed
Release: 4.2.26Fixed Release: None

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Fri 11 Nov 2005 07:50:04 AM UTC, comment #1:

If find needs to produce output but cannot produce correct output, it must fail with a fatal exit status, unless the difference in the output cannot ever be harmful.

Hence if we need data from /etc/mtab but cannot get it, we must exit with a nonzero status so that the caller knows not to trust our output.

Conversely, if the whole operation of find does not need the data from /etc/mtab, and the data is not available, the exit status is zero because the non-availability of the informaiton was irrelevant.

I have updated the CVS code appropriately. Also the NEWS file.

James Youngman <jay>
Project AdministratorIn charge of this item.
Sun 06 Nov 2005 11:03:35 AM UTC, original submission:

ametzler@argenau:/tmp/findutils-rel-4-2-fixes$ find foo -printf '%F\n'
unbekannt
ametzler@argenau:/tmp/findutils-rel-4-2-fixes$ ls -l /etc/mtab
-rw-r----- 1 root root 378 2005-11-06 11:19 /etc/mtab

This is caused by ./find/fstype.c not checking whether gnulib's read_file_system_list returns NULL.

It might be a good idea to show a warning in this case, using something like this:

if (NULL == entries) {
printf("cannot read table of mounted filesystems:%s\n",strerror(errno));
}

(It actually should use error() instead obviously.)
http://lists.gnu.org/archive/html/bug-findutils/2005-11/msg00000.html
thanks, cu andreas

Andreas Metzler <ametzler>

 

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Follow 4 latest changes.

Date Changed By Updated Field Previous Value => Replaced By
Sat 19 Nov 2005 09:47:57 PM UTCjayOpen/ClosedOpen=>Closed
  Release4.2.25=>4.2.26
Fri 11 Nov 2005 07:51:25 AM UTCjayStatusNone=>Fixed
  Assigned toNone=>jay

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