Import /usr/src/bin/sh from FreeBSD 12.0-RELEASE

19 files changed, 294 insertions, 0 deletions

diff --git a/bin/cash/tests/parameters/Makefile b/bin/cash/tests/parameters/Makefile
new file mode 100644
index 00000000..b5d5edab
--- /dev/null
+++ b/bin/cash/tests/parameters/Makefile
@@ -0,0 +1,29 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/Makefile 306843 2016-10-08 13:40:12Z jilles $
+
+PACKAGE=	tests
+
+TESTSDIR=	${TESTSBASE}/bin/sh/${.CURDIR:T}
+
+.PATH: ${.CURDIR:H}
+ATF_TESTS_SH=	functional_test
+
+${PACKAGE}FILES+=	env1.0
+${PACKAGE}FILES+=	exitstatus1.0
+${PACKAGE}FILES+=	ifs1.0
+${PACKAGE}FILES+=	mail1.0
+${PACKAGE}FILES+=	mail2.0
+${PACKAGE}FILES+=	optind1.0
+${PACKAGE}FILES+=	optind2.0
+${PACKAGE}FILES+=	positional1.0
+${PACKAGE}FILES+=	positional2.0
+${PACKAGE}FILES+=	positional3.0
+${PACKAGE}FILES+=	positional4.0
+${PACKAGE}FILES+=	positional5.0
+${PACKAGE}FILES+=	positional6.0
+${PACKAGE}FILES+=	positional7.0
+${PACKAGE}FILES+=	positional8.0
+${PACKAGE}FILES+=	positional9.0
+${PACKAGE}FILES+=	pwd1.0
+${PACKAGE}FILES+=	pwd2.0
+
+.include <bsd.test.mk>
diff --git a/bin/cash/tests/parameters/env1.0 b/bin/cash/tests/parameters/env1.0
new file mode 100644
index 00000000..b5891b61
--- /dev/null
+++ b/bin/cash/tests/parameters/env1.0
@@ -0,0 +1,11 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/env1.0 222957 2011-06-10 22:42:00Z jilles $
+
+export key='must contain this'
+unset x
+r=$(ENV="\${x?\$key}" ${SH} -i +m 2>&1 >/dev/null <<\EOF
+exit 0
+EOF
+) && case $r in
+*"$key"*) true ;;
+*) false ;;
+esac
diff --git a/bin/cash/tests/parameters/exitstatus1.0 b/bin/cash/tests/parameters/exitstatus1.0
new file mode 100644
index 00000000..5e9e0823
--- /dev/null
+++ b/bin/cash/tests/parameters/exitstatus1.0
@@ -0,0 +1,9 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/exitstatus1.0 185232 2008-11-23 20:27:03Z stefanf $
+f() {
+	[ $? = $1 ] || exit 1
+}
+
+true
+f 0
+false
+f 1
diff --git a/bin/cash/tests/parameters/ifs1.0 b/bin/cash/tests/parameters/ifs1.0
new file mode 100644
index 00000000..231cf2b0
--- /dev/null
+++ b/bin/cash/tests/parameters/ifs1.0
@@ -0,0 +1,10 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/ifs1.0 306843 2016-10-08 13:40:12Z jilles $
+
+env IFS=_ ${SH} -c '
+rc=2
+nosuchtool_function() {
+	rc=0
+}
+v=nosuchtool_function
+$v && exit "$rc"
+'
diff --git a/bin/cash/tests/parameters/mail1.0 b/bin/cash/tests/parameters/mail1.0
new file mode 100644
index 00000000..84636293
--- /dev/null
+++ b/bin/cash/tests/parameters/mail1.0
@@ -0,0 +1,15 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/mail1.0 213738 2010-10-12 18:20:38Z obrien $
+# Test that a non-interactive shell does not access $MAIL.
+
+goodfile=/var/empty/sh-test-goodfile
+mailfile=/var/empty/sh-test-mailfile
+T=$(mktemp sh-test.XXXXXX) || exit
+MAIL=$mailfile ktrace -i -f "$T" ${SH} -c "[ -s $goodfile ]" 2>/dev/null
+if ! grep -q $goodfile "$T"; then
+	# ktrace problem
+	rc=0
+elif ! grep -q $mailfile "$T"; then
+	rc=0
+fi
+rm "$T"
+exit ${rc:-3}
diff --git a/bin/cash/tests/parameters/mail2.0 b/bin/cash/tests/parameters/mail2.0
new file mode 100644
index 00000000..07d9c882
--- /dev/null
+++ b/bin/cash/tests/parameters/mail2.0
@@ -0,0 +1,15 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/mail2.0 213738 2010-10-12 18:20:38Z obrien $
+# Test that an interactive shell accesses $MAIL.
+
+goodfile=/var/empty/sh-test-goodfile
+mailfile=/var/empty/sh-test-mailfile
+T=$(mktemp sh-test.XXXXXX) || exit
+ENV=$goodfile MAIL=$mailfile ktrace -i -f "$T" ${SH} +m -i </dev/null >/dev/null 2>&1
+if ! grep -q $goodfile "$T"; then
+	# ktrace problem
+	rc=0
+elif grep -q $mailfile "$T"; then
+	rc=0
+fi
+rm "$T"
+exit ${rc:-3}
diff --git a/bin/cash/tests/parameters/optind1.0 b/bin/cash/tests/parameters/optind1.0
new file mode 100644
index 00000000..b5499bae
--- /dev/null
+++ b/bin/cash/tests/parameters/optind1.0
@@ -0,0 +1,3 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/optind1.0 227773 2011-11-20 21:48:50Z jilles $
+
+unset OPTIND && [ -z "$OPTIND" ]
diff --git a/bin/cash/tests/parameters/optind2.0 b/bin/cash/tests/parameters/optind2.0
new file mode 100644
index 00000000..699b2814
--- /dev/null
+++ b/bin/cash/tests/parameters/optind2.0
@@ -0,0 +1,3 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/optind2.0 259846 2013-12-24 22:38:24Z jilles $
+
+[ "$(OPTIND=42 ${SH} -c 'printf %s "$OPTIND"')" = 1 ]
diff --git a/bin/cash/tests/parameters/positional1.0 b/bin/cash/tests/parameters/positional1.0
new file mode 100644
index 00000000..f1cf7a04
--- /dev/null
+++ b/bin/cash/tests/parameters/positional1.0
@@ -0,0 +1,13 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional1.0 222158 2011-05-21 14:52:26Z jilles $
+
+set -- a b c d e f g h i j
+[ "$1" = a ] || echo "error at line $LINENO"
+[ "${1}" = a ] || echo "error at line $LINENO"
+[ "${1-foo}" = a ] || echo "error at line $LINENO"
+[ "${1+foo}" = foo ] || echo "error at line $LINENO"
+[ "$1+foo" = a+foo ] || echo "error at line $LINENO"
+[ "$10" = a0 ] || echo "error at line $LINENO"
+[ "$100" = a00 ] || echo "error at line $LINENO"
+[ "${10}" = j ] || echo "error at line $LINENO"
+[ "${10-foo}" = j ] || echo "error at line $LINENO"
+[ "${100-foo}" = foo ] || echo "error at line $LINENO"
diff --git a/bin/cash/tests/parameters/positional2.0 b/bin/cash/tests/parameters/positional2.0
new file mode 100644
index 00000000..51c9b566
--- /dev/null
+++ b/bin/cash/tests/parameters/positional2.0
@@ -0,0 +1,65 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional2.0 228873 2011-12-25 13:24:48Z jilles $
+
+failures=''
+ok=''
+
+testcase() {
+	code="$1"
+	expected="$2"
+	oIFS="$IFS"
+	eval "$code"
+	IFS='|'
+	result="$#|$*"
+	IFS="$oIFS"
+	if [ "x$result" = "x$expected" ]; then
+		ok=x$ok
+	else
+		failures=x$failures
+		echo "For $code, expected $expected actual $result"
+	fi
+}
+
+testcase 'set -- a b; set -- p$@q'		'2|pa|bq'
+testcase 'set -- a b; set -- $@q'		'2|a|bq'
+testcase 'set -- a b; set -- p$@'		'2|pa|b'
+testcase 'set -- a b; set -- p$@q'		'2|pa|bq'
+testcase 'set -- a b; set -- $@q'		'2|a|bq'
+testcase 'set -- a b; set -- p$@'		'2|pa|b'
+testcase 'set -- a b; set -- p$*q'		'2|pa|bq'
+testcase 'set -- a b; set -- $*q'		'2|a|bq'
+testcase 'set -- a b; set -- p$*'		'2|pa|b'
+testcase 'set -- a b; set -- p$*q'		'2|pa|bq'
+testcase 'set -- a b; set -- $*q'		'2|a|bq'
+testcase 'set -- a b; set -- p$*'		'2|pa|b'
+testcase 'set -- a b; set -- "p$@q"'		'2|pa|bq'
+testcase 'set -- a b; set -- "$@q"'		'2|a|bq'
+testcase 'set -- a b; set -- "p$@"'		'2|pa|b'
+testcase 'set -- a b; set -- p"$@"q'		'2|pa|bq'
+testcase 'set -- a b; set -- "$@"q'		'2|a|bq'
+testcase 'set -- a b; set -- p"$@"'		'2|pa|b'
+testcase 'set -- "" a b; set -- "p$@q"'		'3|p|a|bq'
+testcase 'set -- "" a b; set -- "$@q"'		'3||a|bq'
+testcase 'set -- "" a b; set -- "p$@"'		'3|p|a|b'
+testcase 'set -- "" a b; set -- p"$@"q'		'3|p|a|bq'
+testcase 'set -- "" a b; set -- "$@"q'		'3||a|bq'
+testcase 'set -- "" a b; set -- p"$@"'		'3|p|a|b'
+testcase 'set -- a; set -- p$@q'		'1|paq'
+testcase 'set -- a; set -- $@q'			'1|aq'
+testcase 'set -- a; set -- p$@'			'1|pa'
+testcase 'set -- a; set -- p$@q'		'1|paq'
+testcase 'set -- a; set -- $@q'			'1|aq'
+testcase 'set -- a; set -- p$@'			'1|pa'
+testcase 'set -- a; set -- p$*q'		'1|paq'
+testcase 'set -- a; set -- $*q'			'1|aq'
+testcase 'set -- a; set -- p$*'			'1|pa'
+testcase 'set -- a; set -- p$*q'		'1|paq'
+testcase 'set -- a; set -- $*q'			'1|aq'
+testcase 'set -- a; set -- p$*'			'1|pa'
+testcase 'set -- a; set -- "p$@q"'		'1|paq'
+testcase 'set -- a; set -- "$@q"'		'1|aq'
+testcase 'set -- a; set -- "p$@"'		'1|pa'
+testcase 'set -- a; set -- p"$@"q'		'1|paq'
+testcase 'set -- a; set -- "$@"q'		'1|aq'
+testcase 'set -- a; set -- p"$@"'		'1|pa'
+
+test "x$failures" = x
diff --git a/bin/cash/tests/parameters/positional3.0 b/bin/cash/tests/parameters/positional3.0
new file mode 100644
index 00000000..7baccacb
--- /dev/null
+++ b/bin/cash/tests/parameters/positional3.0
@@ -0,0 +1,4 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional3.0 268436 2014-07-08 22:04:44Z jilles $
+
+r=$(${SH} -c 'echo ${01:+yes}${010:+yes}' '' a '' '' '' '' '' '' '' '' b)
+[ "$r" = yesyes ]
diff --git a/bin/cash/tests/parameters/positional4.0 b/bin/cash/tests/parameters/positional4.0
new file mode 100644
index 00000000..23e6222c
--- /dev/null
+++ b/bin/cash/tests/parameters/positional4.0
@@ -0,0 +1,4 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional4.0 268568 2014-07-12 10:27:30Z jilles $
+
+set -- "x$0" 2 3 4 5 6 7 8 9 "y$0"
+[ "${01}.${010}" = "$1.${10}" ]
diff --git a/bin/cash/tests/parameters/positional5.0 b/bin/cash/tests/parameters/positional5.0
new file mode 100644
index 00000000..434a63f8
--- /dev/null
+++ b/bin/cash/tests/parameters/positional5.0
@@ -0,0 +1,14 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional5.0 268576 2014-07-12 21:54:11Z jilles $
+
+i=1
+r=0
+while [ $i -lt $((0x100000000)) ]; do
+	t=
+	eval t=\${$i-x}
+	case $t in
+	x) ;;
+	*) echo "Problem with \${$i}" >&2; r=1 ;;
+	esac
+	i=$((i + 0x10000000))
+done
+exit $r
diff --git a/bin/cash/tests/parameters/positional6.0 b/bin/cash/tests/parameters/positional6.0
new file mode 100644
index 00000000..ee0a53a9
--- /dev/null
+++ b/bin/cash/tests/parameters/positional6.0
@@ -0,0 +1,7 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional6.0 273802 2014-10-28 22:14:31Z jilles $
+
+IFS=?
+set p r
+v=pqrs
+r=${v#"$*"}
+[ "$r" = pqrs ]
diff --git a/bin/cash/tests/parameters/positional7.0 b/bin/cash/tests/parameters/positional7.0
new file mode 100644
index 00000000..9db462b6
--- /dev/null
+++ b/bin/cash/tests/parameters/positional7.0
@@ -0,0 +1,8 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional7.0 273802 2014-10-28 22:14:31Z jilles $
+
+set -- / ''
+IFS=*
+set -- "$*"
+IFS=:
+args="$*"
+[ "$#:$args" = "1:/*" ]
diff --git a/bin/cash/tests/parameters/positional8.0 b/bin/cash/tests/parameters/positional8.0
new file mode 100644
index 00000000..e04ec7c9
--- /dev/null
+++ b/bin/cash/tests/parameters/positional8.0
@@ -0,0 +1,31 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional8.0 291025 2015-11-18 21:09:03Z jilles $
+
+failures=''
+ok=''
+
+testcase() {
+	code="$1"
+	expected="$2"
+	oIFS="$IFS"
+	eval "$code"
+	IFS='|'
+	result="$#|$*"
+	IFS="$oIFS"
+	if [ "x$result" = "x$expected" ]; then
+		ok=x$ok
+	else
+		failures=x$failures
+		echo "For $code, expected $expected actual $result"
+	fi
+}
+
+testcase 'shift $#; set -- ""$*'		'1|'
+testcase 'shift $#; set -- $*""'		'1|'
+testcase 'shift $#; set -- ""$@'		'1|'
+testcase 'shift $#; set -- $@""'		'1|'
+testcase 'shift $#; set -- """$*"'		'1|'
+testcase 'shift $#; set -- "$*"""'		'1|'
+testcase 'shift $#; set -- """$@"'		'1|'
+testcase 'shift $#; set -- "$@"""'		'1|'
+
+test "x$failures" = x
diff --git a/bin/cash/tests/parameters/positional9.0 b/bin/cash/tests/parameters/positional9.0
new file mode 100644
index 00000000..7bf09241
--- /dev/null
+++ b/bin/cash/tests/parameters/positional9.0
@@ -0,0 +1,18 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/positional9.0 291903 2015-12-06 14:09:31Z jilles $
+# Although POSIX leaves the result of expanding ${#@} and ${#*} unspecified,
+# make sure it is at least numeric.
+
+set -- bb cc ddd
+set -f
+lengths=${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}")
+IFS=
+lengths=$lengths${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}")
+case $lengths in
+*[!0-9]*)
+	printf 'bad: %s\n' "$lengths"
+	exit 3 ;;
+????????????????*) ;;
+*)
+	printf 'too short: %s\n' "$lengths"
+	exit 3 ;;
+esac
diff --git a/bin/cash/tests/parameters/pwd1.0 b/bin/cash/tests/parameters/pwd1.0
new file mode 100644
index 00000000..d06238f7
--- /dev/null
+++ b/bin/cash/tests/parameters/pwd1.0
@@ -0,0 +1,11 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/pwd1.0 213738 2010-10-12 18:20:38Z obrien $
+# Check that bogus PWD values are not accepted from the environment.
+
+cd / || exit 3
+failures=0
+[ "$(PWD=foo ${SH} -c 'pwd')" = / ] || : $((failures += 1))
+[ "$(PWD=/var/empty ${SH} -c 'pwd')" = / ] || : $((failures += 1))
+[ "$(PWD=/var/empty/foo ${SH} -c 'pwd')" = / ] || : $((failures += 1))
+[ "$(PWD=/bin/ls ${SH} -c 'pwd')" = / ] || : $((failures += 1))
+
+exit $((failures != 0))
diff --git a/bin/cash/tests/parameters/pwd2.0 b/bin/cash/tests/parameters/pwd2.0
new file mode 100644
index 00000000..29ffab46
--- /dev/null
+++ b/bin/cash/tests/parameters/pwd2.0
@@ -0,0 +1,24 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/parameters/pwd2.0 213738 2010-10-12 18:20:38Z obrien $
+# Check that PWD is exported and accepted from the environment.
+set -e
+
+T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX)
+trap 'rm -rf $T' 0
+cd -P $T
+TP=$(pwd)
+mkdir test1
+ln -s test1 link
+cd link
+[ "$PWD" = "$TP/link" ]
+[ "$(pwd)" = "$TP/link" ]
+[ "$(pwd -P)" = "$TP/test1" ]
+[ "$(${SH} -c pwd)" = "$TP/link" ]
+[ "$(${SH} -c pwd\ -P)" = "$TP/test1" ]
+cd ..
+[ "$(pwd)" = "$TP" ]
+cd -P link
+[ "$PWD" = "$TP/test1" ]
+[ "$(pwd)" = "$TP/test1" ]
+[ "$(pwd -P)" = "$TP/test1" ]
+[ "$(${SH} -c pwd)" = "$TP/test1" ]
+[ "$(${SH} -c pwd\ -P)" = "$TP/test1" ]