Add very basic regression test for netinet6: create and close raw,

UDP, and TCP IPv6 sockets.

tools/regression/netinet6/ip6_sockets/Makefile

@@ -0,0 +1,8 @@
+#
+# $FreeBSD$
+#
+
+PROG=	ip6_sockets
+NO_MAN=
+
+.include <bsd.prog.mk>

tools/regression/netinet6/ip6_sockets/ip6_sockets.c

@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 2006 Robert N. M. Watson
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/socket.h>
+
+#include <err.h>
+#include <unistd.h>
+
+/*
+ * Simple regression test to create and close a variety of IPv6 socket types.
+ */
+
+int
+main(int argc, char *argv[])
+{
+	int s;
+
+	s = socket(PF_INET6, SOCK_DGRAM, 0);
+	if (s < 0)
+		err(-1, "socket(PF_INET6, SOCK_DGRAM, 0)");
+	close(s);
+
+	s = socket(PF_INET6, SOCK_STREAM, 0);
+	if (s < 0)
+		err(-1, "socket(PF_INET6, SOCK_STREAM, 0)");
+	close(s);
+
+	s = socket(PF_INET6, SOCK_RAW, 0);
+	if (s < 0)
+		err(-1, "socket(PF_INET6, SOCK_RAW, 0)");
+	close(s);
+
+	return (0);
+}