cp: fix the --no-preserve=mode option

The --no-preserve=mode option did not do what its name implies:
it would mistakenly preserve permission mode bits.
* NEWS: Mention the fix.
* TODO: Remove an entry.
* src/copy.c (copy_reg): Add a condition to properly
handle the --no-preserve=mode option for files
(copy_internal): Add a condition to properly handle the
--no-preserve=mode option for directories.
* src/copy.h (struct cp_options): Add a new boolean.
* src/cp.c (cp_option_init,decode_preserve_arg): Set the
new boolean value according to specified options.
* src/install.c (struct cp_options): Initialize the new boolean.
* src/mv.c (struct cp_options): Initialize the new boolean.
* tests/cp/preserve-mode.sh: Add a new test.
* tests/cp/link-preserve.sh (-a --no-preserve=mode): Adjust the
expected perms: now, --no-preserve=mode overrides the --preserve=mode
that is inherent in -a, as it should.
* tests/local.mk: Add the new test to the list.

2 files changed, 55 insertions, 1 deletions

diff --git a/tests/cp/link-preserve.sh b/tests/cp/link-preserve.sh
index 0c75d305e..bb3b2447e 100755
--- a/tests/cp/link-preserve.sh
+++ b/tests/cp/link-preserve.sh
@@ -84,7 +84,7 @@ touch a; chmod 731 a
 umask 077
 cp -a --no-preserve=mode a b
 mode=$(ls -l b|cut -b-10)
-test "$mode" = "-rwx------" || fail=1
+test "$mode" = "-rw-------" || fail=1
 umask 022
 # --------------------------------------
 
diff --git a/tests/cp/preserve-mode.sh b/tests/cp/preserve-mode.sh
new file mode 100755
index 000000000..dc97cbaa0
--- /dev/null
+++ b/tests/cp/preserve-mode.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+# ensure that cp's --no-preserve=mode works correctly
+
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ cp
+
+rm -f a b c
+umask 0022
+touch a
+touch b
+chmod 600 b
+
+#regular file test
+cp --no-preserve=mode b c
+mode_a=$(ls -l a | gawk '{print $1}')
+mode_c=$(ls -l c | gawk '{print $1}')
+test "$mode_a" = "$mode_c" || fail=1
+
+rm -rf d1 d2 d3
+mkdir d1 d2
+chmod 705 d2
+
+#directory test
+cp --no-preserve=mode -r d2 d3
+mode_d1=$(ls -l d1 | gawk '{print $1}')
+mode_d3=$(ls -l d3 | gawk '{print $1}')
+test "$mode_d1" = "$mode_d3" || fail=1
+
+rm -f a b c
+touch a
+chmod 600 a
+
+#contradicting options test
+cp --no-preserve=mode --preserve=all a b
+mode_a=$(ls -l a | gawk '{print $1}')
+mode_b=$(ls -l b | gawk '{print $1}')
+test "$mode_a" = "$mode_b" || fail=1
+
+Exit $fail