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a42a039132
Use more constrained argument matching to improve forward compatibility and robustness. For example it's better that `cksum -a sha3` is _not_ equivalent to `cksum -a sha386`, so that a user specifying `-a sha3` on an older cksum would not be surprised. Also argmatch() is used when parsing tags from lines like: SHA3 (filename) = abcedf.... so it's more robust that older cksum instances to fail earlier in the parsing process, when parsing output from possible future cksum implementations that might support SHA3. * src/digest.c (algorithm_from_tag): Use argmatch_exact() to ensure we don't match abbreviated algorithms. (main): Likewise. * tests/misc/cksum-a.sh: Add a test case.
57 lines
1.6 KiB
Bash
Executable File
57 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# Validate cksum --algorithm operation
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# Copyright (C) 2021-2022 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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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ cksum
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cat > input_options <<\EOF || framework_failure_
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bsd sum -r
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sysv sum -s
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crc cksum
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md5 md5sum -t
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sha1 sha1sum -t
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sha224 sha224sum -t
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sha256 sha256sum -t
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sha384 sha384sum -t
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sha512 sha512sum -t
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blake2b b2sum -t
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EOF
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while read algo prog; do
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$prog /dev/null >> out || continue
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cksum --untagged --algorithm=$algo /dev/null > out-c || fail=1
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case "$algo" in
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bsd) ;;
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sysv) ;;
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crc) ;;
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*) cksum --check --algorithm=$algo out-c || fail=1 ;;
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esac
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cat out-c >> out-a || framework_failure_
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done < input_options
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compare out out-a || fail=1
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# Ensure --check not allowed with older (non tagged) algorithms
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returns_ 1 cksum -a bsd --check </dev/null || fail=1
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# Ensure abbreviations not supported for algorithm selection
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returns_ 1 cksum -a sha22 </dev/null || fail=1
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Exit $fail
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