75 lines
2.2 KiB
Bash
Executable file
75 lines
2.2 KiB
Bash
Executable file
#!/bin/sh
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# Validate cksum operation
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# Copyright (C) 2020-2025 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 printf
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returns_ 1 cksum missing 2> /dev/null || fail=1
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# Pass in expected crc and crc32b for file "in"
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# Sets fail=1 upon failure
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crc_check() {
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for crct in crc crc32b; do
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cksum -a $crct in > out || fail=1
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case "$crct" in crc) crce="$1";; crc32b) crce="$2";; esac
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size=$(stat -c %s in) || framework_failure_
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printf '%s\n' "$crce $size in" > exp || framework_failure_
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compare exp out || fail=1
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done
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}
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# Check complete range of bytes
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{
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for offset in $(seq -1 6); do
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env printf $(env printf '\\%03o' $(seq 0 $offset));
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env printf $(env printf '\\%03o' $(seq 0 255));
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done
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} > in || framework_failure_
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crc_check 4097727897 559400337
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# Make sure crc is correct for files larger than 128 bytes (4 fold pclmul)
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{
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env printf $(env printf '\\%03o' $(seq 0 130));
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} > in || framework_failure_
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crc_check 3800919234 3739179551
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# Make sure crc is correct for files larger than 32 bytes
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# but <128 bytes (1 fold pclmul)
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{
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env printf $(env printf '\\%03o' $(seq 0 64));
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} > in || framework_failure_
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crc_check 796287823 1086353368
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# Make sure crc is still handled correctly when next 65k buffer is read
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# (>32 bytes more than 65k)
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{
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seq 1 12780
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} > in || framework_failure_
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crc_check 3720986905 388883562
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# Make sure crc is still handled correctly when next 65k buffer is read
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# (>=128 bytes more than 65k)
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{
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seq 1 12795
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} > in || framework_failure_
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crc_check 4278270357 2796628507
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Exit $fail
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