opnsense-src/tools/regression/bin/sh/builtins/fc2.0
David E. O'Brien f3bf9b7a16 Allow one to regression test 'sh' changes without having to install
a potentially bad /bin/sh first.
2010-10-12 18:20:38 +00:00

34 lines
746 B
Text

# $FreeBSD$
set -e
trap 'echo Broken pipe -- test failed' PIPE
P=${TMPDIR:-/tmp}
cd $P
T=$(mktemp -d sh-test.XXXXXX)
cd $T
mkfifo input output error
HISTFILE=/dev/null ${SH} +m -i <input >output 2>error &
exec 3>input
{
# Command not found, containing slash
echo '/var/empty/nonexistent' >&3
# Read error message, shell will read new input now
read dummy <&5
# Execute bad command again
echo 'fc -e true; echo continued' >&3
read dummy <&5
read line <&4 && [ "$line" = continued ] && : ${rc:=0}
exec 3>&-
# Old sh duplicates itself after the fc, producing another line
# of output.
if read line <&4; then
echo "Extraneous output: $line"
rc=1
fi
} 4<output 5<error
exec 3>&-
rm input output error
rmdir ${P}/${T}
exit ${rc:-3}