Getaddrinfo(), getnameinfo(), and etc support in libc/net.

Several udp and raw apps IPv6 support.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project

3 files changed, 277 insertions, 0 deletions

diff --git a/usr.sbin/rip6query/Makefile b/usr.sbin/rip6query/Makefile
new file mode 100644
index 0000000..8a0cd40
--- /dev/null
+++ b/usr.sbin/rip6query/Makefile
@@ -0,0 +1,9 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/5/93
+#	$FreeBSD$
+
+PROG=	rip6query
+MAN8=	rip6query.8
+
+CFLAGS+=-DINET6 -I${.CURDIR}/../route6d
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/rip6query/rip6query.8 b/usr.sbin/rip6query/rip6query.8
new file mode 100644
index 0000000..bd64068
--- /dev/null
+++ b/usr.sbin/rip6query/rip6query.8
@@ -0,0 +1,62 @@
+.\"
+.\" Copyright (C) 1998 and 1999 WIDE Project.
+.\" 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.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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.
+.\"
+.\"     $Id: rip6query.8,v 1.1 1999/10/07 05:36:36 itojun Exp $
+.\"	$FreeBSD$
+.\"
+.Dd Oct 7, 1999
+.Dt RIP6QUERY 8
+.Os KAME
+.Sh NAME
+.Nm rip6query
+.Nd RIPng debugging tool
+.\"
+.Sh SYNOPSIS
+.Nm
+.Op Fl I Ar interface
+.Ar destination
+.\"
+.Sh DESCRIPTION
+.Nm
+requests remote RIPng daemon on
+.Ar destionation
+to dump RIPng routing information.
+.Fl I
+lets you specify outgoing
+.Ar interface
+for the query packet,
+and is useful when link-local address is specified for
+.Ar destination .
+.\"
+.Sh SEE ALSO
+.Xr route6d 8 .
+.\"
+.Sh HISTORY
+The
+.Nm
+command first appeared in WIDE Hydrangea IPv6 protocol stack kit.
diff --git a/usr.sbin/rip6query/rip6query.c b/usr.sbin/rip6query/rip6query.c
new file mode 100644
index 0000000..59e7932
--- /dev/null
+++ b/usr.sbin/rip6query/rip6query.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * 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.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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 <stdio.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <signal.h>
+#include <err.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#if defined(__FreeBSD__) && __FreeBSD__ >= 3
+#include <net/if_var.h>
+#endif /* __FreeBSD__ >= 3 */
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include "route6d.h"
+
+/* wrapper for KAME-special getnameinfo() */
+#ifndef NI_WITHSCOPEID
+#define	NI_WITHSCOPEID	0
+#endif
+
+int	s;
+extern int errno;
+struct sockaddr_in6 sin6;
+struct rip6	*ripbuf;
+
+#define	RIPSIZE(n)	(sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6))
+
+int main __P((int, char **));
+static void usage __P((void));
+static const char *sa_n2a __P((struct sockaddr *));
+static const char *inet6_n2a __P((struct in6_addr *));
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	struct netinfo6 *np;
+	struct sockaddr_in6 fsock;
+	int i, n, len, flen;
+	int c;
+	extern char *optarg;
+	extern int optind;
+	int ifidx = -1;
+	int error;
+	char pbuf[10];
+	struct addrinfo hints, *res;
+
+	while ((c = getopt(argc, argv, "I:")) != EOF) {
+		switch (c) {
+		case 'I':
+			ifidx = if_nametoindex(optarg);
+			if (ifidx == 0) {
+				errx(1, "invalid interface %s", optarg);
+				/*NOTREACHED*/
+			}
+			break;
+		default:
+			usage();
+			exit(1);
+			/*NOTREACHED*/
+		}
+	}
+	argv += optind;
+	argc -= optind;
+
+	if (argc != 1) {
+		usage();
+		exit(-1);
+	}
+
+	if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+		err(1, "socket");
+		/*NOTREACHED*/
+	}
+
+	/* getaddrinfo is preferred for addr@ifname syntax */
+	snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT);
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = AF_INET6;
+	hints.ai_socktype = SOCK_STREAM;
+	error = getaddrinfo(argv[0], pbuf, &hints, &res);
+	if (error) {
+		errx(1, "%s: %s", argv[0], gai_strerror(error));
+		/*NOTREACHED*/
+	}
+	if (res->ai_next) {
+		errx(1, "%s: %s", argv[0], "resolved to multiple addrs");
+		/*NOTREACHED*/
+	}
+	if (sizeof(sin6) != res->ai_addrlen) {
+		errx(1, "%s: %s", argv[0], "invalid addrlen");
+		/*NOTREACHED*/
+	}
+	memcpy(&sin6, res->ai_addr, res->ai_addrlen);
+	if (ifidx >= 0)
+		sin6.sin6_scope_id = ifidx;
+
+	if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) {
+		err(1, "malloc");
+		/*NOTREACHED*/
+	}
+	ripbuf->rip6_cmd = RIP6_REQUEST;
+	ripbuf->rip6_vers = RIP6_VERSION;
+	ripbuf->rip6_res1[0] = 0;
+	ripbuf->rip6_res1[1] = 0;
+	np = ripbuf->rip6_nets;
+	bzero(&np->rip6_dest, sizeof(struct in6_addr));
+	np->rip6_tag = 0;
+	np->rip6_plen = 0;
+	np->rip6_metric = HOPCNT_INFINITY6;
+	if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6,
+			sizeof(struct sockaddr_in6)) < 0) {
+		err(1, "send");
+		/*NOTREACHED*/
+	}
+	do {
+		flen = sizeof(fsock);
+		if ((len = recvfrom(s, ripbuf, BUFSIZ, 0,
+				(struct sockaddr *)&fsock, &flen)) < 0) {
+			err(1, "recvfrom");
+			/*NOTREACHED*/
+		}
+		printf("Response from %s len %d\n",
+			sa_n2a((struct sockaddr *)&fsock), len);
+		n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) /
+			sizeof(struct netinfo6);
+		np = ripbuf->rip6_nets;
+		for (i = 0; i < n; i++, np++) {
+			printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest),
+				np->rip6_plen, np->rip6_metric);
+			if (np->rip6_tag)
+				printf(" tag=0x%x", ntohs(np->rip6_tag));
+			printf("\n");
+		}
+	} while (len == RIPSIZE(24));
+
+	exit(0);
+}
+
+static void
+usage()
+{
+	fprintf(stderr, "Usage: rip6query [-I iface] address\n");
+}
+
+/* getnameinfo() is preferred as we may be able to show ifindex as ifname */
+static const char *
+sa_n2a(sa)
+	struct sockaddr *sa;
+{
+	static char buf[BUFSIZ];
+
+	if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf),
+			NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID) != 0) {
+		snprintf(buf, sizeof(buf), "%s", "(invalid)");
+	}
+	return buf;
+}
+
+static const char *
+inet6_n2a(addr)
+	struct in6_addr *addr;
+{
+	static char buf[BUFSIZ];
+
+	return inet_ntop(AF_INET6, addr, buf, sizeof(buf));
+}