external/ibm-public/postfix/dist/examples/chroot-setup/LINUX2

   1 #! /bin/sh
   2
   3 # LINUX2 - shell script to set up a Postfix chroot jail for Linux
   4 # Tested on SuSE Linux 5.3 (libc5) and 7.0 (glibc2.1)
   5
   6 # Other testers reported as working:
   7 #
   8 # 2001-01-15 Debian sid (unstable)
   9 #            Christian Kurz <shorty@getuid.de>
  10
  11 # Copyright (c) 2000 - 2001 by Matthias Andree
  12 # Redistributable unter the MIT-style license that follows:
  13 # Abstract: "do whatever you want except hold somebody liable or change
  14 # the copyright information".
  15
  16 # Permission is hereby granted, free of charge, to any person obtaining a copy
  17 # of this software and associated documentation files (the "Software"), to
  18 # deal in the Software without restriction, including without limitation the
  19 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  20 # sell copies of the Software, and to permit persons to whom the Software is
  21 # furnished to do so, subject to the following conditions:
  22 #
  23 # The above copyright notice and this permission notice shall be included in
  24 # all copies or substantial portions of the Software.
  25 #
  26 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  27 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  28 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  29 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  30 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  31 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  32 # IN THE SOFTWARE.
  33
  34 # 2000-09-29
  35 # v0.1: initial release
  36
  37 # 2000-12-05
  38 # v0.2: copy libdb.* for libnss_db.so
  39 #       remove /etc/localtime in case it's a broken symlink
  40 #       restrict find to maxdepth 1 (faster)
  41
  42 # Revision 1.4  2001/01/15 09:36:35  emma
  43 # add note it was successfully tested on Debian sid
  44 #
  45 # 20060101 /lib64 support by Keith Owens.
  46 #
  47
  48 CP="cp -p"
  49
  50 cond_copy() {
  51   # find files as per pattern in $1
  52   # if any, copy to directory $2
  53   dir=`dirname "$1"`
  54   pat=`basename "$1"`
  55   lr=`find "$dir" -maxdepth 1 -name "$pat"`
  56   if test ! -d "$2" ; then exit 1 ; fi
  57   if test "x$lr" != "x" ; then $CP $1 "$2" ; fi
  58 }
  59
  60 set -e
  61 umask 022
  62
  63 POSTFIX_DIR=${POSTFIX_DIR-/var/spool/postfix}
  64 cd ${POSTFIX_DIR}
  65
  66 mkdir -p etc lib usr/lib/zoneinfo
  67 test -d /lib64 && mkdir -p lib64
  68
  69 # find localtime (SuSE 5.3 does not have /etc/localtime)
  70 lt=/etc/localtime
  71 if test ! -f $lt ; then lt=/usr/lib/zoneinfo/localtime ; fi
  72 if test ! -f $lt ; then lt=/usr/share/zoneinfo/localtime ; fi
  73 if test ! -f $lt ; then echo "cannot find localtime" ; exit 1 ; fi
  74 rm -f etc/localtime
  75
  76 # copy localtime and some other system files into the chroot's etc
  77 $CP -f $lt /etc/services /etc/resolv.conf /etc/nsswitch.conf etc
  78 $CP -f /etc/host.conf /etc/hosts /etc/passwd etc
  79 ln -s -f /etc/localtime usr/lib/zoneinfo
  80
  81 # copy required libraries into the chroot
  82 cond_copy '/lib/libnss_*.so*' lib
  83 cond_copy '/lib/libresolv.so*' lib
  84 cond_copy '/lib/libdb.so*' lib
  85 if test -d /lib64; then
  86   cond_copy '/lib64/libnss_*.so*' lib64
  87   cond_copy '/lib64/libresolv.so*' lib64
  88   cond_copy '/lib64/libdb.so*' lib64
  89 fi
  90
  91 postfix reload