Date: Tue, 21 Feb 2006 14:08:00 GMT From: Martin Beran <mb@tns.cz> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/93644: Wrong handling of 'return 1' in /bin/sh with 'set -e' Message-ID: <200602211408.k1LE80rW024360@www.freebsd.org> Resent-Message-ID: <200602211410.k1LEA5P6085835@freefall.freebsd.org>
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>Number: 93644
>Category: bin
>Synopsis: Wrong handling of 'return 1' in /bin/sh with 'set -e'
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Feb 21 14:10:05 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Martin Beran
>Release: 6.0-RELEASE-p4
>Organization:
Trusted Network Solutions, a.s.
>Environment:
FreeBSD mb.tns.cz 6.0-RELEASE-p4 FreeBSD 6.0-RELEASE-p4 #4: Fri Feb 3 12:09:35 CET 2006 root@mb.tns.cz:/usr/obj/usr/src/sys/MB i386
>Description:
Shell /bin/sh terminates a script when a function returns with a nonzero return value and 'set -e' is in effect, even when the return value of the function is tested, e.g., by 'if'. This bug occurs only if return is not the last command in the function.
>How-To-Repeat:
#!/bin/sh -e
f() {
return 1
:
}
if f; then :; fi
echo END
I think this script should print "END", but is does not. It works as expected after changing function f to
f() {
return 1
}
or
f() {
return 1 || :
:
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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