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2bdc481219
* NEWS: Mention this change. * doc/coreutils.texi (cp invocation): Describe the new behavior. * src/copy.c: No longer include "canonicalize.h". (copy_reg): Upon failure to open a dangling destination symlink, don't canonicalize the name, but rather fail (default) or, with POSIXLY_CORRECT, repeat the open call without O_EXCL (potentially dangerous). * src/copy.h (struct cp_options) [open_dangling_dest_symlink]: New member. Reorder the others, grouping "bool" and "enum" members together. * tests/cp/thru-dangling: Test for changed and new behavior. * src/cp.c (cp_option_init): Initialize new member. * src/install.c (cp_option_init): Likewise. * src/mv.c (cp_option_init): Likewise. Signed-off-by: Jim Meyering <meyering@redhat.com>
47 lines
1.4 KiB
Bash
Executable File
47 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# Ensure that cp works as documented, when the destination is a dangling symlink
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# Copyright (C) 2007 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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if test "$VERBOSE" = yes; then
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set -x
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cp --version
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fi
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. $srcdir/../test-lib.sh
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ln -s no-such dangle || framework_failure
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echo hi > f || framework_failure
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echo hi > exp || framework_failure
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echo "cp: not writing through dangling symlink \`dangle'" \
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> exp-err || framework_failure
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fail=0
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# Starting with 6.9.90, this usage fails, by default:
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cp f dangle > err 2>&1 && fail=1
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compare err exp-err || fail=1
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test -f no-such && fail=1
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# But you can set POSIXLY_CORRECT to get the historical behavior.
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POSIXLY_CORRECT=1 cp f dangle > out 2>&1 || fail=1
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cat no-such >> out || fail=1
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compare out exp || fail=1
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(exit $fail); exit $fail
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