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75c671415e
* tests/dd/fail-ftruncate-fstat.sh: Also map the "Not owner" error for EPERM seen on earlier Solaris 11 releases. Reported by Bruno Haible.
83 lines
2.4 KiB
Bash
Executable File
83 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# Check that 'dd' does not continue copying if ftruncate and fstat fail.
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# Copyright (C) 2025-2026 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 <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ dd
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require_gcc_shared_
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cat > k.c <<'EOF' || framework_failure_
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#include <sys/stat.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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int
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ftruncate (int fd, off_t length)
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{
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/* Prove that LD_PRELOAD works: create the evidence file "x". */
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fclose (fopen ("x", "w"));
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/* Pretend failure. */
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errno = EPERM;
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return -1;
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}
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int
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fstat (int fd, struct stat *statbuf)
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{
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/* Prove that LD_PRELOAD works: create the evidence file "y". */
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fclose (fopen ("y", "w"));
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/* Pretend failure. */
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errno = EPERM;
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return -1;
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}
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EOF
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# Then compile/link it:
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gcc_shared_ k.c k.so \
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|| framework_failure_ 'failed to build shared library'
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# Setup the file "out" and preserve it's original contents in "exp-out".
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yes | head -n 2048 | tr -d '\n' > out || framework_failure_
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cp out exp-out || framework_failure_
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LD_PRELOAD=$LD_PRELOAD:./k.so dd if=/dev/zero of=out count=1 \
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seek=1 status=none 2>errt
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ret=$?
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test -f x && test -f y \
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|| skip_ "internal test failure: maybe LD_PRELOAD doesn't work?"
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# EPERM='Not owner' on Solaris 11.4.0.15.0 (2018)
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# EPERM='Insufficient privileges' on Solaris 11.4.89.207 (2026)
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sed -e 's/Insufficient privileges/Operation not permitted/' \
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-e 's/Not owner/Operation not permitted/' \
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< errt > err || framework_failure_
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# After ftruncate fails, we use fstat to get the file type.
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echo "dd: cannot fstat 'out': Operation not permitted" > exp
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compare exp err || fail=1
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# coreutils 9.1 to 9.9 would mistakenly continue copying after ftruncate
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# failed and exit successfully.
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test "$ret" = 1 || fail=1
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compare exp-out out || fail=1
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Exit $fail
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