Subject: PR/28852 CVS commit: src/bin/sh
To: None <,>
From: David Laight <>
List: netbsd-bugs
Date: 02/14/2005 20:47:01
The following reply was made to PR bin/28852; it has been noted by GNATS.

From: David Laight <>
Subject: PR/28852 CVS commit: src/bin/sh
Date: Mon, 14 Feb 2005 20:46:26 +0000 (UTC)

 Module Name:	src
 Committed By:	dsl
 Date:		Mon Feb 14 20:46:26 UTC 2005
 Modified Files:
 	src/bin/sh: expand.c
 Log Message:
 expbackq() was incorrectly backing up a temporary buffer when removing \n
 from the end of output of commands inside $(...) substitutions.
 If the program output is n*128+1 bytes long (ending in a \n) then the code
 checks buf[-1] for another \n - looking an uninitialised stack.
 On a big-endian system an integer of value 10 will satisfy this (unlikely
 on little endian) and can happen depending on the last code path to use
 a lot of stack!
 This caused the problem with on sparc64 after ', 2005' was
 added to the date list.
 Fixed PR/28852
 To generate a diff of this commit:
 cvs rdiff -r1.67 -r1.68 src/bin/sh/expand.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.