New test program for bind(2), with a single (currently eroneously failing)

test case from Tyler Retzlaff.

tests/lib/libc/sys/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.37 2015/01/31 23:06:57 christos Exp $
+# $NetBSD: Makefile,v 1.38 2015/04/05 06:36:52 martin Exp $
 
 MKMAN=	no
 
@@ -9,6 +9,7 @@ MKMAN=	no
 TESTSDIR=		${TESTSBASE}/lib/libc/sys
 
 TESTS_C+=		t_access
+TESTS_C+=		t_bind
 TESTS_C+=		t_chroot
 TESTS_C+=		t_clock_gettime
 TESTS_C+=		t_clone

tests/lib/libc/sys/t_bind.c

@@ -0,0 +1,74 @@
+/*	$NetBSD: t_bind.c,v 1.1 2015/04/05 06:36:52 martin Exp $	*/
+/*
+ * Copyright (c) 2015 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
+ * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <atf-c.h>
+
+ATF_TC(bind_foreign_family);
+
+ATF_TC_HEAD(bind_foreign_family, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks that bindinging a socket "
+	    "with a different address family fails");
+}
+
+ATF_TC_BODY(bind_foreign_family, tc)
+{
+	struct sockaddr_in addr;
+
+	memset(&addr, 0, sizeof(addr));
+	/* use a sin_family != the socket type */
+	addr.sin_port = htons(8000);
+	addr.sin_addr.s_addr = INADDR_ANY;
+
+	int sock = socket(AF_LOCAL, SOCK_STREAM, 0);
+	ATF_REQUIRE(sock != -1);
+
+	/* should fail but currently doesn't */
+	ATF_REQUIRE(-1 == bind(sock, (struct sockaddr *)&addr, sizeof(addr)));
+	ATF_REQUIRE(EINVAL == errno);
+
+	close(sock);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, bind_foreign_family);
+
+	return atf_no_error();
+}