Date: Sat, 15 Feb 2003 21:23:48 +0000 From: "How Can ThisBe" <howcanthisbe300@hotmail.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/48318: Segmentation fault in sh with attached script Message-ID: <F114T5jR7oZvo0GRF4j00035ddb@hotmail.com>
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>Number: 48318
>Category: bin
>Synopsis: Segmentation fault in sh with attached script
>Confidential: yes
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Feb 15 13:30:06 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: tigger
>Release: FreeBSD 5.0-RELEASE-p1 i386
>Organization:
Confidential: no Synopsis: Segmentation fault in sh
>Environment:
System: FreeBSD piglet.l--v--l.net 5.0-RELEASE-p1 FreeBSD 5.0-RELEASE-p1 #0:
Tue Feb 4 23:45:23 CET 2003
tigger@piglet.l--v--l.net:/usr/obj/usr/src/sys/PIGLET i386
>Description:
I was working a simple sh script when I was suprised that I was able to
produce a Segmentation fault (core dumped) crash of /bin/sh
>How-To-Repeat:
The following script will repeat the crash on my system every time with
the following command line
sh $0 -Drv
-- start script --
#!/bin/sh
while getopts ":Ddhrv:" COMMAND_LINE_ARGUMENT
do
case "${COMMAND_LINE_ARGUMENT}" in
D)
d="YES"
f="NO" ;;
d)
shift 1
d="YES" ;;
h)
shift 1
h="YES" ;;
r)
shift 1
r="YES" ;;
v)
shift 1
v="v" ;;
esac
done
exit 0
-- end script --
Commenting out the 'shift 1' on the -r will prevent the crash - strange.
There is a good chance that my syntax is wrong, but I'm teaching my self
:]
>Fix:
Comment out the 'shift 1' on the -r section, not sure why that prevents
the crash
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>Release-Note:
>Audit-Trail:
>Unformatted:
>with attached script
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