Files
coreutils/tests/tty/tty.sh
Paul Eggert aec89a3e7d tty: better fix for Bug#26371
* src/tty.c (TTY_USAGE): Rename from TTY_FAILURE, since this
is used only for usage failures.  All uses changed.
(TTY_TTYNAME_FAILURE): New constant.
(main): Remove no-longer-needed assignment of ENOENT to errno.
Make status-setting clearer too.
Report an error if ttyname fails even though stdin is a terminal,
instead of silently pretending that stdin is not a terminal.
* tests/tty/tty.sh: Test for this issue.  This should fix Bug#78244.
2025-06-20 12:15:27 -07:00

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#!/bin/sh
# Test 'tty'.
# Copyright 2017-2025 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# Make sure there's a tty on stdin.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ tty
tty_works_on_stdin=false
if test -t 0; then
if tty; then
tty_works_on_stdin=true
else
test $? -eq 4 || fail=1
fi
tty -s || fail=1
fi
returns_ 1 tty </dev/null || fail=1
returns_ 1 tty -s </dev/null || fail=1
returns_ 1 tty <&- 2>/dev/null || fail=1
returns_ 1 tty -s <&- || fail=1
returns_ 2 tty a || fail=1
returns_ 2 tty -s a || fail=1
if test -w /dev/full && test -c /dev/full; then
if $tty_works_on_stdin; then
returns_ 3 tty >/dev/full || fail=1
fi
returns_ 3 tty </dev/null >/dev/full || fail=1
fi
Exit $fail