diff options
Diffstat (limited to 'tests/misc/stty-invalid.sh')
-rwxr-xr-x | tests/misc/stty-invalid.sh | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/misc/stty-invalid.sh b/tests/misc/stty-invalid.sh new file mode 100755 index 000000000..3b035ecef --- /dev/null +++ b/tests/misc/stty-invalid.sh @@ -0,0 +1,44 @@ +#!/bin/sh +# Ensure that stty diagnoses invalid inputs, rather than silently misbehaving. + +# Copyright (C) 2007-2012 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 <http://www.gnu.org/licenses/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +print_ver_ stty +require_controlling_input_terminal_ +trap '' TTOU # Ignore SIGTTOU + + +saved_state=$(stty -g) || fail=1 +stty $saved_state || fail=1 + +# Before coreutils-6.9.90, if stty were given an argument with 35 colons +# separating 36 hexadecimal strings, stty would fail to diagnose as invalid +# any number that was out of range as long as sscanf happened to +# overflow/wrap it back into the range of the corresponding type (either +# tcflag_t or cc_t). + +# For each of the following, with coreutils-6.9 and earlier, +# stty would fail to diagnose the error on at least Solaris 10. +hex_2_64=10000000000000000 +stty $(echo $saved_state |sed 's/^[^:]*:/'$hex_2_64:/) 2>/dev/null && fail=1 +stty $(echo $saved_state |sed 's/:[0-9a-f]*$/:'$hex_2_64/) 2>/dev/null && fail=1 + +# Just in case either of the above mistakenly succeeds (and changes +# the state of our tty), try to restore the initial state. +stty $saved_state || fail=1 + +Exit $fail |