1#!/bin/sh
2# Test "stty" with rows and columns.
3
4# Copyright (C) 1998-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19# Setting this envvar to a very small value used to cause e.g., 'stty size'
20# to generate slightly different output on certain systems.
21COLUMNS=80
22export COLUMNS
23
24# Make sure we get English-language behavior.
25# See the report about a possibly-related Solaris problem by Alexandre Peshansky
26# <https://lists.gnu.org/r/bug-coreutils/2004-10/msg00035.html>.
27# Currently stty isn't localized, but it might be in the future.
28LC_ALL=C
29export LC_ALL
30
31. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
32print_ver_ stty
33
34require_controlling_input_terminal_
35require_trap_signame_
36
37trap '' TTOU # Ignore SIGTTOU
38
39# Versions of GNU stty from shellutils-1.9.2c and earlier failed
40# tests #2 and #4 when run on SunOS 4.1.3.
41
42tests='
431 rows_40_columns_80 40_80
442 rows_1_columns_1 1_1
453 rows_40_columns_80 40_80
464 rows_1 1_80
475 columns_1 1_1
486 rows_40 40_1
497 rows_1 1_1
508 columns_80 1_80
519 rows_30 30_80
5210 rows_0x1E 30_80
5311 rows_036 30_80
54NA LAST NA
55'
56set $tests
57
58saved_size=$(stty size) && test -n "$saved_size" \
59  || skip_ "can't get window size"
60
61# Linux virtual consoles issue an error if you
62# try to increase their size.  So skip in that case.
63if test "x$saved_size" != "x0 0"; then
64  srow=$(echo $saved_size | cut -d ' ' -f1)
65  scol=$(echo $saved_size | cut -d ' ' -f2)
66  stty rows $(expr $srow + 1) cols $(expr $scol + 1) ||
67    skip_ "can't increase window size"
68fi
69
70while :; do
71  test_name=$1
72  args=$2
73  expected_result="$(echo $3|tr _ ' ')"
74  test "$args" = empty && args=''
75  test "x$args" = xLAST && break
76  args=$(echo x$args|tr _ ' '|sed 's/^x//')
77  if test "$VERBOSE" = yes; then
78    # echo "testing \$(stty $args; stty size\) = $expected_result ..."
79    echo "test $test_name... " | tr -d '\n'
80  fi
81  stty $args || exit 1
82  test x"$(stty size 2> /dev/null)" = "x$expected_result" \
83    && ok=ok || ok=FAIL fail=1
84  test "$VERBOSE" = yes && echo $ok
85  shift; shift; shift
86done
87
88set x $saved_size
89stty rows $2 columns $3 || exit 1
90
91Exit $fail
92