/* * This file is part of the Sofia-SIP package * * Copyright (C) 2005,2007 Nokia Corporation. * * Contact: Pekka Pessi <pekka.pessi@nokia.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ /**@page addrinfo Resolve network services * * @section synopsis Synopsis * * <tt>addrinfo [-pcn46] service-name host</tt> * * @section description Description * * The @em addrinfo utility will use su_getaddrinfo() to resolve the network * services and print resolved names. See sect 6.1 of RFC3493 and the getaddrinfo(3) * manual page of POSIX 1003.1g, for more information. * * @section options Options * * The @e addrinfo utility accepts following ccommand line options: * <dl> * <dt>-p</dt> * <dd>use passive open.</dd> * <dt>-c</dt> * <dd>get canonic name.</dd> * <dt>-n</dt> * <dd>use numeric host names.</dd> * <dt>-4</dt> * <dd>IPv4 only.</dd> * <dt>-6</dt> * <dd>IPv6 only (but including mapped IPv4 addresses).</dd> * </dl> * * @section bugs Reporting Bugs * Report bugs to <sofia-sip-devel@lists.sourceforge.net>. * * @section author Author * Written by Pekka Pessi <pekka -dot pessi -at- nokia -dot- com> * * @section copyright Copyright * Copyright (C) 2005,2007 Nokia Corporation. * * This program is free software; see the source for copying conditions. * There is @b NO warranty; not even for @b MERCHANTABILITY or <b>FITNESS * FOR A PARTICULAR PURPOSE</b>. */ #include "config.h" #include <stdio.h> #include <string.h> #include <stdlib.h> #include "sofia-sip/su.h" char const help[] = "usage: addrinfo [-pnc46] <servicename> <domainname>\n" "\t-p query for passive open\n" "\t-n use numeric host names\n" "\t-c ask for canonic names\n" "\t-4 IPv4 only\n" "\t-6 IPv6 only (but including mapped IPv4 addresses)\n" ; int getopt(int argc, char * const argv[], char const *opstring); extern int optind; static void usage(void) { fputs(help, stderr); exit(1); } int main(int argc, char *argv[]) { #if SU_HAVE_IN6 char buffer[INET6_ADDRSTRLEN]; #else char buffer[20]; #endif su_addrinfo_t hints[1] = {{ 0 }}; su_addrinfo_t *ai, *res = NULL; char const *host, *service; int error; for (;;) { switch(getopt(argc, argv, "ndp4c")) { case '4': hints->ai_family = AF_INET; break; #if SU_HAVE_IN6 case '6': hints->ai_family = AF_INET6; break; #endif case 'p': hints->ai_flags |= AI_PASSIVE; break; case 'n': hints->ai_flags |= AI_NUMERICHOST; break; case 'c': hints->ai_flags |= AI_CANONNAME; break; case -1: goto main; default: usage(); } } main: if (optind + 1 >= argc) usage(); service = argv[optind++]; host = argv[optind++]; su_init(); if ((error = su_getaddrinfo(host, service, hints, &res)) == 0) { for (ai = res; ai; ai = ai->ai_next) { su_sockaddr_t const *su = (su_sockaddr_t const *)ai->ai_addr; unsigned port; #if SU_HAVE_IN6 if (su->su_family != AF_INET6 && su->su_family != AF_INET) continue; #else if (su->su_family != AF_INET) continue; #endif port = ntohs(su->su_port); su_inet_ntop(ai->ai_family, SU_ADDR(su), buffer, sizeof(buffer)); printf("%d@[%s]:%u", ai->ai_protocol, buffer, port); if (ai->ai_flags & AI_CANONNAME) printf(" canon=%s", ai->ai_canonname); puts(""); } su_freeaddrinfo(res); } else { fprintf(stderr, "addrinfo: %s\n", su_gai_strerror(error)); error = 1; } su_deinit(); return error; }