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Re: kern/44950: fcntl(F_MAXFD) returns bogus values

The following reply was made to PR kern/44950; it has been noted by GNATS.

From: David Laight <>
Subject: Re: kern/44950: fcntl(F_MAXFD) returns bogus values
Date: Sat, 14 May 2011 14:33:40 +0100

 On Wed, May 11, 2011 at 12:55:01PM +0000, Christos Zoulas wrote:
 >  .... Note that
 >  you cannot depend on what file descriptors the shell may have open. Just to
 >  give an example, if you do an NIS operation you end up with a file 
 > descriptor
 >  open.
 I fairly sure that the shell command line redirects have to refer to
 file 0 through 9 in an exec'd child process - so those can't be used
 for other purposes.
 I did think that that the shell shouldn't really leave anything else open.
 David Laight:

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