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75e0047c4b
* AUTHORS: Register as the author * NEWS: Mention this change * README: Add truncate command to list * src/truncate.c: New command * src/Makefile.am: Add truncate command to list to build * src/.gitignore: Add truncate binary to list to ignore * doc/coreutils.texi (truncate invocation): Add truncate info * man/Makefile.am: Add truncate man page to list to build * man/truncate.x: Add truncate man page template * po/POTFILES.in: Add truncate to list to translate * tests/Makefile.am: Add truncate tests * tests/misc/help-version: Add support for new truncate command * tests/misc/truncate-dangling-symlink: check dangling link ok * tests/misc/truncate-dir-fail: ensure dirs fail * tests/misc/truncate-fail-diag: validate messages for missing paths * tests/misc/truncate-fifo: ensure fifos ignored * tests/misc/truncate-no-create-missing: ensure -c option honoured * tests/misc/truncate-overflow: check signed integer overflows * tests/misc/truncate-owned-by-other: root permissions check * tests/misc/truncate-parameters: check invalid parameter combinations * tests/misc/truncate-relative: check invalid relative sizes
41 lines
1.3 KiB
Bash
Executable File
41 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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# Demonstrate that "truncate -s0 writable-but-owned-by-other" works.
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# Copyright (C) 2008 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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truncate --version
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fi
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. $srcdir/envvar-check
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. $srcdir/test-lib.sh
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require_root_
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group_num=$(id -g $NON_ROOT_USERNAME)
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# Create a file owned by root, and writable by $NON_ROOT_USERNAME.
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echo > root-owned || framework_failure
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chgrp +$group_num . root-owned || framework_failure
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chmod g+w root-owned
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# Ensure that the current directory is searchable by $NON_ROOT_USERNAME.
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chmod g+x .
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setuidgid $NON_ROOT_USERNAME env PATH="$PATH" truncate -s0 root-owned || fail=1
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(exit $fail); exit $fail
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