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66 lines
2.0 KiB
Bash
Executable File
66 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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# Make sure stty can parse most of its options - in pairs [expensive].
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# Copyright (C) 1998-2026 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_ stty
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expensive_
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# Make sure there's a tty on stdin.
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require_controlling_input_terminal_
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require_trap_signame_
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trap '' TTOU # Ignore SIGTTOU
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# Get the reversible settings from stty.c.
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stty_reversible_init_
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saved_state=.saved-state
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stty --save > $saved_state || fail=1
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stty $(cat $saved_state) || fail=1
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# Build a list of all boolean options stty accepts on this system.
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# Don't depend on terminal width. Put each option on its own line,
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# remove all non-boolean ones, remove 'parenb' and 'cread' explicitly,
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# then remove any leading hyphens.
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sed_del='/^[io]*speed/d;/^rows/d;/^columns/d;/ = /d;s/parenb//;s/cread//'
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options=$(stty -a | tr -s ';' '\n' | sed "s/^ //;$sed_del;s/-//g")
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# Take them in pairs, with and without the leading '-'.
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for opt1 in $options; do
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for opt2 in $options; do
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stty $opt1 $opt2 || fail=1
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if stty_reversible_query_ "$opt1" ; then
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stty -$opt1 $opt2 || fail=1
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fi
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if stty_reversible_query_ "$opt2" ; then
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stty $opt1 -$opt2 || fail=1
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fi
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if stty_reversible_query_ "$opt1" \
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&& stty_reversible_query_ "$opt2" ; then
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stty -$opt1 -$opt2 || fail=1
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fi
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done
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done
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stty $(cat $saved_state)
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Exit $fail
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