bin/173642: ``here-document'' does not works in FreeBSD 9 /bin/sh
Aleksandr A Babaylov
. at babolo.ru
Thu Nov 15 06:20:00 UTC 2012
>Number: 173642
>Category: bin
>Synopsis: ``here-document'' does not works in FreeBSD 9 /bin/sh
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Nov 15 06:20:00 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Aleksandr A Babaylov
>Release: FreeBSD 9.1-PRERELEASE amd64
>Organization:
private
>Environment:
FreeBSD aahz.babolo.ru 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Wed Oct 31 18:43:14 MSK 2012 babolo at aahz.babolo.ru:/tmp/babolo/usr/src/sys/blut amd64
>Description:
``here-document'' does not works in sh
>How-To-Repeat:
====================
aahz>cat $TMPDIR/t
#!/bin/sh
5<< EOF
sduyhvb
EOF
/bin/ls -l /dev/fd/5
/bin/cat /dev/fd/5
aahz>uname -a
FreeBSD aahz.babolo.ru 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Wed Oct 31 18:43:14 MSK 2012 babolo at aahz.babolo.ru:/tmp/babolo/usr/src/sys/blut amd64
aahz>env LC_ALL=C sh $TMPDIR/t
ls: /dev/fd/5: Bad file descriptor
cat: /dev/fd/5: Bad file descriptor
aahz>df | grep fdescfs
fdescfs 1 1 0 100% /dev/fd
====================
On older releases it works:
====================
skeeve>cat $TMPDIR/t
#!/bin/sh
5<< EOF
sduyhvb
EOF
/bin/ls -l /dev/fd/5
/bin/cat /dev/fd/5
skeeve>uname -a
FreeBSD skeeve.babolo.ru 8.3-STABLE FreeBSD 8.3-STABLE #0: Mon Oct 22 14:20:22 MSK 2012 babolo at skeeve.babolo.ru:/tmp/babolo/usr/src/sys/blut amd64
skeeve>env LC_ALL=C sh $TMPDIR/t
cr-xr-xr-x 1 root wheel 0, 8 Nov 15 08:10 /dev/fd/5
sduyhvb
skeeve>df | grep fdescfs
fdescfs 1 1 0 100% /dev/fd
====================
====================
cicuta>cat $TMPDIR/t
#!/bin/sh
5<< EOF
sduyhvb
EOF
/bin/ls -l /dev/fd/5
/bin/cat /dev/fd/5
cicuta>uname -a
FreeBSD cicuta.babolo.ru 7.2-STABLE FreeBSD 7.2-STABLE #0: Wed May 27 02:13:01 MSD 2009 babolo at cicuta.babolo.ru:/tmp/babolo/usr/src/sys/cicuta i386
cicuta>env LC_ALL=C sh $TMPDIR/t
p--------- 1 babolo wheel 8 Nov 15 09:48 /dev/fd/5
sduyhvb
cicuta>df | grep fdescfs
fdescfs 1 1 0 100% /dev/fd
====================
It seen by kdump, that 5 descriptor in FreeBSD 9 closed before using.
>Fix:
Use /bin/sh from older version?
>Release-Note:
>Audit-Trail:
>Unformatted:
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