1 files changed, 92 insertions, 0 deletions
diff --git a/tests/misc/stty.sh b/tests/misc/stty.sh
new file mode 100755
index 0000000..afe0b4d
--- /dev/null
+++ b/tests/misc/stty.sh
@@ -0,0 +1,92 @@
+#!/bin/sh
+# Make sure stty can parse most of its options.
+
+# Copyright (C) 1998-2020 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_ stty
+
+require_controlling_input_terminal_
+require_trap_signame_
+require_strace_ ioctl
+
+trap '' TTOU # Ignore SIGTTOU
+
+# Get the reversible settings from stty.c.
+stty_reversible_init_
+
+saved_state=.saved-state
+stty --save > $saved_state || fail=1
+stty $(cat $saved_state) || fail=1
+
+# This would segfault prior to sh-utils-2.0j.
+stty erase - || fail=1
+
+# Ensure "immediate" and "wait" mode supported, with and without settings
+for mode in '-drain' 'drain'; do
+  for opt in 'echo' ''; do
+    stty "$mode" $opt || fail=1
+  done
+done
+
+# These would improperly ignore invalid options through coreutils 5.2.1.
+returns_ 1 stty -F 2>/dev/null || fail=1
+returns_ 1 stty -raw -F no/such/file 2>/dev/null || fail=1
+returns_ 1 stty -raw -a 2>/dev/null || fail=1
+
+# Build a list of all boolean options stty accepts on this system.
+# Don't depend on terminal width.  Put each option on its own line,
+# remove all non-boolean ones, then remove any leading hyphens.
+sed_del='/^speed/d;/^rows/d;/^columns/d;/ = /d'
+options=$(stty -a | tr -s ';' '\n' | sed "s/^ //;$sed_del;s/-//g")
+
+# Take them one at a time, with and without the leading '-'.
+for opt in $options; do
+  # 'stty parenb' and 'stty -parenb' fail with this message
+  # stty: standard input: unable to perform all requested operations
+  # on Linux 2.2.0-pre4 kernels.  Also since around Linux 2.6.30
+  # other serial control settings give the same error. So skip them.
+  # Also on ppc*|sparc* glibc platforms 'icanon' gives the same error.
+  # See: https://bugs.gnu.org/7228#14
+  case $opt in
+    parenb|parodd|cmspar) continue;;
+    cstopb|crtscts|cdtrdsr|icanon) continue;;
+  esac
+
+  # This is listed as supported on FreeBSD
+  # but the ioctl returns ENOTTY.
+  test $opt = extproc && continue
+
+  stty $opt || fail=1
+
+  # Likewise, 'stty -cread' would fail, so skip that, too.
+  test $opt = cread && continue
+  if stty_reversible_query_ "$opt" ; then
+    stty -$opt || { fail=1; echo -$opt; }
+  fi
+done
+
+stty $(cat $saved_state)
+
+# Ensure we validate options before accessing the device
+strace -o log1 -e ioctl stty --version || fail=1
+n_ioctl1=$(wc -l < log1) || framework_failure_
+returns_ 1 strace -o log2 -e ioctl stty -blahblah || fail=1
+n_ioctl2=$(wc -l < log2) || framework_failure_
+test "$n_ioctl1" = "$n_ioctl2" || fail=1
+
+Exit $fail