Bug 155373 - Incorrect error message on failed output redirection
Incorrect error message on failed output redirection
Status: CLOSED RAWHIDE
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: bash (Show other bugs)
4.0
i386 Linux
medium Severity low
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Assigned To: Tim Waugh
Ben Levenson
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2005-04-19 13:38 EDT by Steve Bonds
Modified: 2007-11-30 17:07 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2005-04-20 04:19:13 EDT
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Description Steve Bonds 2005-04-19 13:38:28 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041003 Firefox/0.10

Description of problem:
When I redirect output to a location where I would expect to get "permission denied", I instead get "No such file or directory".

Version-Release number of selected component (if applicable):
bash-3.0-19.2

How reproducible:
Always

Steps to Reproduce:
1. log in as a user that can't write to /
2. run the command ">/tempfile"


  

Actual Results:  The shell returns the error "-bash: /tempfile: No such file or directory"

Expected Results:  The shell should have returned the error "bash: /tempfile: Permission denied"  (This is the Red Hat Enterprise 3 behavior.)

Additional info:

An "strace" of the improper behavior (strace sh -c ">/tempfile") shows:

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open("/tempfile", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = -1 EACCES (Permission denied)
open("/tempfile", O_WRONLY|O_TRUNC|O_LARGEFILE) = -1 ENOENT (No such file or directory)
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It seems that the failure of the first open() is not being detected and the errno from the second open() without O_CREAT is the one getting passed back to the error handler.  In Red Hat Enterprise 3, there is only one open():

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open("/tempfile", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = -1 EACCES (Permission denied)
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Comment 1 Tim Waugh 2005-04-20 04:19:13 EDT
This was caused by AFS support.  A fix has been committed to CVS for Fedora
development.  Thanks for the report.

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