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Date:      Sun, 23 Apr 2017 21:58:18 +0000 (UTC)
From:      Jilles Tjoelker <jilles@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r317347 - head/bin/sh/tests/expansion
Message-ID:  <201704232158.v3NLwIm3002388@repo.freebsd.org>

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Author: jilles
Date: Sun Apr 23 21:58:17 2017
New Revision: 317347
URL: https://svnweb.freebsd.org/changeset/base/317347

Log:
  sh: Add tests for NUL byte in command substitution output.

Added:
  head/bin/sh/tests/expansion/cmdsubst24.0   (contents, props changed)
Modified:
  head/bin/sh/tests/expansion/Makefile

Modified: head/bin/sh/tests/expansion/Makefile
==============================================================================
--- head/bin/sh/tests/expansion/Makefile	Sun Apr 23 21:51:29 2017	(r317346)
+++ head/bin/sh/tests/expansion/Makefile	Sun Apr 23 21:58:17 2017	(r317347)
@@ -45,6 +45,7 @@ ${PACKAGE}FILES+=	cmdsubst20.0
 ${PACKAGE}FILES+=	cmdsubst21.0
 ${PACKAGE}FILES+=	cmdsubst22.0
 ${PACKAGE}FILES+=	cmdsubst23.0
+${PACKAGE}FILES+=	cmdsubst24.0
 ${PACKAGE}FILES+=	export1.0
 ${PACKAGE}FILES+=	export2.0
 ${PACKAGE}FILES+=	export3.0

Added: head/bin/sh/tests/expansion/cmdsubst24.0
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/bin/sh/tests/expansion/cmdsubst24.0	Sun Apr 23 21:58:17 2017	(r317347)
@@ -0,0 +1,24 @@
+# $FreeBSD$
+# POSIX leaves the effect of NUL bytes in command substitution output
+# unspecified but we have always discarded them.
+
+failures=0
+
+check() {
+	if [ "$2" != "$3" ]; then
+		printf "Failed at line %s: got \"%s\" expected \"%s\"\n" "$1" "$2" "$3"
+		: $((failures += 1))
+	fi
+}
+
+fmt='\0a\0 \0b\0c d\0'
+assign_builtin=$(printf "$fmt")
+check "$LINENO" "$assign_builtin" "a bc d"
+assign_pipeline=$(printf "$fmt" | cat)
+check "$LINENO" "$assign_pipeline" "a bc d"
+set -- $(printf "$fmt") $(printf "$fmt" | cat) "$(printf "$fmt")" "$(printf "$fmt" | cat)" 
+IFS=@
+splits="$*"
+check "$LINENO" "$splits" "a@bc@d@a@bc@d@a bc d@a bc d"
+
+[ "$failures" = 0 ]



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