164 lines
3.9 KiB
C
164 lines
3.9 KiB
C
/*
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* This file is part of the Sofia-SIP package
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*
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* Copyright (C) 2005 Nokia Corporation.
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*
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* Contact: Pekka Pessi <pekka.pessi@nokia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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/**@page addrinfo Resolve network services
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*
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* @section synopsis Synopsis
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*
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* <tt>addrinfo [-pcn46] host service</tt>
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*
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* @section description Description
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*
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* The @em addrinfo utility will use su_getaddrinfo() to resolve the network
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* services and print resolved names.
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*
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* @section options Options
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*
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* The @e addrinfo utility accepts following ccommand line options:
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* <dl>
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* <dt>-p</dt>
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* <dd>use passive open.</dd>
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* <dt>-c</dt>
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* <dd>get canonic name.</dd>
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* <dt>-n</dt>
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* <dd>use numeric host names.</dd>
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* <dt>-4</dt>
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* <dd>IPv4 only.</dd>
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* <dt>-6</dt>
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* <dd>IPv6 only (but including mapped IPv4 addresses).</dd>
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* </dl>
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*
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* @section bugs Reporting Bugs
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* Report bugs to <sofia-sip-devel@lists.sourceforge.net>.
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*
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* @section author Author
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* Written by Pekka Pessi <pekka -dot pessi -at- nokia -dot- com>
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*
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* @section copyright Copyright
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* Copyright (C) 2005 Nokia Corporation.
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*
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* This program is free software; see the source for copying conditions.
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* There is @b NO warranty; not even for @b MERCHANTABILITY or <b>FITNESS
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* FOR A PARTICULAR PURPOSE</b>.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "sofia-sip/su.h"
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char const help[] =
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"usage: addrinfo [-pnc46] [domainname]\n"
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"\t-p query for passive open\n"
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"\t-n use numeric host names\n"
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"\t-c ask for canonic names\n"
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"\t-4 IPv4 only\n"
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"\t-6 IPv6 only (but including mapped IPv4 addresses)\n"
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;
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int getopt(int argc, char * const argv[], char const *opstring);
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extern int optind;
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void usage(void)
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{
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fputs(help, stderr);
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exit(1);
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}
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int main(int argc, char *argv[])
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{
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#if SU_HAVE_IN6
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char buffer[INET6_ADDRSTRLEN];
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#else
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char buffer[20];
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#endif
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su_addrinfo_t hints[1] = {{ 0 }};
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su_addrinfo_t *ai, *res = NULL;
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char const *host, *service;
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int error;
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for (;;) {
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switch(getopt(argc, argv, "ndp4c")) {
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case '4': hints->ai_family = AF_INET; break;
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#if SU_HAVE_IN6
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case '6': hints->ai_family = AF_INET6; break;
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#endif
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case 'p': hints->ai_flags |= AI_PASSIVE; break;
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case 'n': hints->ai_flags |= AI_NUMERICHOST; break;
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case 'c': hints->ai_flags |= AI_CANONNAME; break;
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case -1:
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goto main;
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default:
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usage();
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}
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}
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main:
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if (optind + 1 >= argc)
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usage();
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service = argv[optind++];
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host = argv[optind++];
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su_init();
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if ((error = su_getaddrinfo(host, service, hints, &res)) == 0) {
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for (ai = res; ai; ai = ai->ai_next) {
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su_sockaddr_t const *su = (su_sockaddr_t const *)ai->ai_addr;
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unsigned port;
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#if SU_HAVE_IN6
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if (su->su_family != AF_INET6 && su->su_family != AF_INET)
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continue;
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#else
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if (su->su_family != AF_INET)
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continue;
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#endif
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port = ntohs(su->su_port);
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inet_ntop(ai->ai_family, SU_ADDR(su), buffer, sizeof(buffer));
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printf("%d@[%s]:%u", ai->ai_protocol, buffer, port);
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if (ai->ai_flags & AI_CANONNAME)
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printf(" canon=%s", ai->ai_canonname);
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puts("");
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}
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su_freeaddrinfo(res);
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}
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else {
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fprintf(stderr, "addrinfo: %s\n", su_gai_strerror(error));
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error = 1;
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}
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su_deinit();
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return error;
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}
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