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/* $NetBSD: h_gai.c,v 1.1 2011/01/12 02:58:40 pgoyette Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002 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.
*/
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct addrinfo ai;
char host[NI_MAXHOST];
char serv[NI_MAXSERV];
int vflag = 0;
static void usage(void);
static void print1(const char *, const struct addrinfo *, char *, char *);
int main(int, char *[]);
static void
usage()
{
fprintf(stderr, "usage: test [-f family] [-s socktype] [-p proto] [-DPRSv46] host serv\n");
}
static void
print1(const char *title, const struct addrinfo *res, char *h, char *s)
{
const char *start, *end;
int error;
const int niflag = NI_NUMERICHOST;
if (res->ai_addr) {
error = getnameinfo(res->ai_addr, res->ai_addr->sa_len,
host, sizeof(host), serv, sizeof(serv),
niflag);
h = host;
s = serv;
} else
error = 0;
if (vflag) {
start = "\t";
end = "\n";
} else {
start = " ";
end = "";
}
printf("%s%s", title, end);
printf("%sflags 0x%x%s", start, res->ai_flags, end);
printf("%sfamily %d%s", start, res->ai_family, end);
printf("%ssocktype %d%s", start, res->ai_socktype, end);
printf("%sprotocol %d%s", start, res->ai_protocol, end);
printf("%saddrlen %d%s", start, res->ai_addrlen, end);
if (error)
printf("%serror %d%s", start, error, end);
else {
printf("%shost %s%s", start, h, end);
printf("%sserv %s%s", start, s, end);
}
#if 0
if (res->ai_canonname)
printf("%scname \"%s\"%s", start, res->ai_canonname, end);
#endif
if (!vflag)
printf("\n");
}
int
main(int argc, char *argv[])
{
struct addrinfo *res;
int error, i;
char *p, *q;
extern int optind;
extern char *optarg;
int c;
char nbuf[10];
memset(&ai, 0, sizeof(ai));
ai.ai_family = PF_UNSPEC;
ai.ai_flags |= AI_CANONNAME;
while ((c = getopt(argc, argv, "Df:p:PRs:Sv46")) != -1) {
switch (c) {
case 'D':
ai.ai_socktype = SOCK_DGRAM;
break;
case 'f':
ai.ai_family = atoi(optarg);
break;
case 'p':
ai.ai_protocol = atoi(optarg);
break;
case 'P':
ai.ai_flags |= AI_PASSIVE;
break;
case 'R':
ai.ai_socktype = SOCK_RAW;
break;
case 's':
ai.ai_socktype = atoi(optarg);
break;
case 'S':
ai.ai_socktype = SOCK_STREAM;
break;
case 'v':
vflag++;
break;
case '4':
ai.ai_family = PF_INET;
break;
case '6':
ai.ai_family = PF_INET6;
break;
default:
usage();
exit(1);
}
}
argc -= optind;
argv += optind;
if (argc != 2){
usage();
exit(1);
}
p = *argv[0] ? argv[0] : NULL;
q = *argv[1] ? argv[1] : NULL;
strncpy(nbuf, "(empty)", sizeof(nbuf));
print1("arg:", &ai, p ? p : nbuf , q ? q : nbuf);
error = getaddrinfo(p, q, &ai, &res);
if (error) {
printf("%s\n", gai_strerror(error));
exit(1);
}
i = 1;
do {
snprintf(nbuf, sizeof(nbuf), "ai%d:", i);
print1(nbuf, res, NULL, NULL);
i++;
} while ((res = res->ai_next) != NULL);
printf("\n");
exit(0);
}
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