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Security fix! Correct handling of seteuid() return value See Debian bug #638002, reported by John Lightsey. When possible the (already available) set_euidgid() function is used. Additionally, it is unnecessary to change the identity when writing into an already open file descriptor. This should fix the problem.
author markus schnalke <meillo@marmaro.de>
date Sat, 27 Aug 2011 16:19:07 +0200
parents cab46cefa4ce
children
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#!/bin/sh
#
# Dummy UUCP rmail command for postfix/qmail systems
#
# written by luciano l. mannucci <luke@nameron.smd.sublink.org>
# improved by Wietse Venema <wietse@porcupine.org>
# see: 
#      List:       postfix-users
#      Subject:    Rmail: very small fix
#      From:       luke@nameron.smd.sublink.org (luciano l. mannucci)
#      Date:       2000-09-13 14:31:30
#      URL:        http://marc.info/?l=postfix-users&m=96885536302087
#
# taken from postfix-2.5.5/auxiliary/rmail/rmail


SENDMAIL="/usr/sbin/sendmail"
IFS=" " read junk from junk junk junk junk junk junk junk relay

case "$from" in
 *[@!]*) ;;
      *) from="$from@$relay";;
esac

exec $SENDMAIL -i -f "$from" -- "$@"