sh/tests: Add tests for SIGINT in non-jobc background commands

If job control is not enabled, background commands shall ignore SIGINT and
SIGQUIT, and it shall be possible to override that ignore in the same shell.

MFC after:	1 week

3 files changed, 30 insertions, 0 deletions

diff --git a/bin/sh/tests/execution/Makefile b/bin/sh/tests/execution/Makefile
index 1f7f1c80ae2b2..c457c148b8f39 100644
--- a/bin/sh/tests/execution/Makefile
+++ b/bin/sh/tests/execution/Makefile
@@ -17,6 +17,8 @@ ${PACKAGE}FILES+=		bg7.0
 ${PACKAGE}FILES+=		bg8.0
 ${PACKAGE}FILES+=		bg9.0
 ${PACKAGE}FILES+=		bg10.0 bg10.0.stdout
+${PACKAGE}FILES+=		bg11.0
+${PACKAGE}FILES+=		bg12.0
 ${PACKAGE}FILES+=		env1.0
 ${PACKAGE}FILES+=		fork1.0
 ${PACKAGE}FILES+=		fork2.0
diff --git a/bin/sh/tests/execution/bg11.0 b/bin/sh/tests/execution/bg11.0
new file mode 100644
index 0000000000000..e0c48ed16076a
--- /dev/null
+++ b/bin/sh/tests/execution/bg11.0
@@ -0,0 +1,16 @@
+# $FreeBSD$
+
+T=`mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXXXX`
+trap 'rm -rf $T' 0
+cd $T || exit 3
+mkfifo fifo1
+# Use a trap, not the default action, since the shell may catch SIGINT and
+# therefore its processing may be delayed.
+{ trap 'exit 5' TERM; read dummy <fifo1; exit 4; } &
+exec 3>fifo1
+kill -INT "$!"
+kill -TERM "$!"
+exec 3>&-
+wait "$!"
+r=$?
+[ "$r" = 5 ]
diff --git a/bin/sh/tests/execution/bg12.0 b/bin/sh/tests/execution/bg12.0
new file mode 100644
index 0000000000000..78102ecf6306d
--- /dev/null
+++ b/bin/sh/tests/execution/bg12.0
@@ -0,0 +1,12 @@
+# $FreeBSD$
+
+T=`mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXXXX`
+trap 'rm -rf $T' 0
+cd $T || exit 3
+mkfifo fifo1
+{ trap - INT; : >fifo1; sleep 5; exit 4; } &
+: <fifo1
+kill -INT "$!"
+wait "$!"
+r=$?
+[ "$r" -gt 128 ] && [ "$(kill -l "$r")" = INT ]