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97e9778296
This implements my suggestion in Bug#54112. * src/dd.c (usage): Document the change. (parse_integer, scanargs): Implement the change. Omit some now-obsolete checks for invalid flags. * tests/dd/bytes.sh: Test the new behavior, while retaining checks for the now-obsolete usage. * tests/dd/nocache_eof.sh: Avoid now-obsolete usage.
64 lines
1.8 KiB
Bash
Executable File
64 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (C) 2012-2022 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_ dd
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echo 0123456789abcdefghijklm > in || framework_failure_
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# count bytes
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for operands in "count=14B" "count=14 iflag=count_bytes"; do
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dd $operands conv=swab < in > out 2> /dev/null || fail=1
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case $(cat out) in
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1032547698badc) ;;
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*) fail=1 ;;
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esac
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done
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for operands in "iseek=10B" "skip=10 iflag=skip_bytes"; do
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# skip bytes
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dd $operands < in > out 2> /dev/null || fail=1
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case $(cat out) in
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abcdefghijklm) ;;
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*) fail=1 ;;
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esac
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# skip records and bytes from pipe
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echo 0123456789abcdefghijklm |
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dd $operands bs=2 > out 2> /dev/null || fail=1
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case $(cat out) in
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abcdefghijklm) ;;
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*) fail=1 ;;
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esac
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done
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truncate -s8 expected2
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printf '\0\0\0\0\0\0\0\0abcdefghijklm\n' > expected
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for operands in "oseek=8B" "seek=8 oflag=seek_bytes"; do
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# seek bytes
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echo abcdefghijklm |
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dd $operands bs=5 > out 2> /dev/null || fail=1
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compare expected out || fail=1
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# Just truncation, no I/O
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dd $operands bs=5 of=out2 count=0 2> /dev/null || fail=1
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compare expected2 out2 || fail=1
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done
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Exit $fail
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