tests/cp/preserve-gid

   1 #!/bin/sh
   2 # Verify that cp -p preserves GID when it is possible.
   3
   4 # Copyright (C) 2007, 2008 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 . "$srcdir/../lang-default"
  20 PRIV_CHECK_ARG=require-root . "$srcdir/../priv-check"
  21 . "$srcdir/../test-lib.sh"
  22
  23 create() {
  24   echo "$1" > "$1" || exit 1
  25   chown "+$2:+$3" "$1" || exit 1
  26 }
  27
  28 t0() {
  29   f=$1; shift
  30   u=$1; shift
  31   g=$1; shift
  32   rm -f b || exit 1
  33   "$@" "$f" b || exit 1
  34   s=`stat -c '%u %g' b`
  35   if test "x$s" != "x$u $g"; then
  36     # Allow the actual group to match that of the parent directory
  37     # (it was set to 0 above).
  38     if test "x$s" = "x$u 0"; then
  39       :
  40     else
  41       echo "$0: $* $f b: $u $g != $s" 1>&2
  42       (exit 1); exit 1
  43     fi
  44   fi
  45 }
  46
  47 t1() {
  48   f=$1; shift
  49   u=$1; shift
  50   g=$1; shift
  51   t0 "$f" "$u" "$g" setuidgid -g "$nameless_gid1,$nameless_gid2" \
  52       "$nameless_uid" "$@"
  53 }
  54
  55 if test "x$VERBOSE" = xyes; then
  56   set -x
  57   cp --version
  58 fi
  59
  60 nameless_uid=`$PERL -le 'foreach my $i (1000..16*1024-1) { getpwuid $i or (print $i), exit }'`
  61 nameless_gid1=`$PERL -le 'foreach my $i (1000..16*1024) { getgrgid $i or (print $i), exit }'`
  62 nameless_gid2=`$PERL -le 'foreach my $i ('"$nameless_gid1"'+1..16*1024) { getgrgid $i or (print $i), exit }'`
  63
  64 if test -z "$nameless_uid" \
  65     || test -z "$nameless_gid1" \
  66     || test -z "$nameless_gid2"; then
  67   skip_test_ "couldn't find a nameless UID or GID"
  68 fi
  69
  70 chown "+$nameless_uid:+0" .
  71
  72 create a0 0 0
  73 create b0 "$nameless_uid" "$nameless_gid1"
  74 create b1 "$nameless_uid" "$nameless_gid2"
  75 create c0 0 "$nameless_gid1"
  76 create c1 0 "$nameless_gid2"
  77
  78 t0 a0 0 0 cp
  79 t0 b0 0 0 cp
  80 t0 b1 0 0 cp
  81 t0 c0 0 0 cp
  82 t0 c1 0 0 cp
  83
  84 t0 a0 0 0 cp -p
  85 t0 b0 "$nameless_uid" "$nameless_gid1" cp -p
  86 t0 b1 "$nameless_uid" "$nameless_gid2" cp -p
  87 t0 c0 0 "$nameless_gid1" cp -p
  88 t0 c1 0 "$nameless_gid2" cp -p
  89
  90 t1 a0 "$nameless_uid" "$nameless_gid1" cp
  91 t1 b0 "$nameless_uid" "$nameless_gid1" cp
  92 t1 b1 "$nameless_uid" "$nameless_gid1" cp
  93 t1 c0 "$nameless_uid" "$nameless_gid1" cp
  94 t1 c1 "$nameless_uid" "$nameless_gid1" cp
  95
  96 t1 a0 "$nameless_uid" "$nameless_gid1" cp -p
  97 t1 b0 "$nameless_uid" "$nameless_gid1" cp -p
  98 t1 b1 "$nameless_uid" "$nameless_gid2" cp -p
  99 t1 c0 "$nameless_uid" "$nameless_gid1" cp -p
 100 t1 c1 "$nameless_uid" "$nameless_gid2" cp -p
 101
 102 (exit 0); exit 0