1*a9e85050Seric /* $OpenBSD: getaddrinfo.c,v 1.3 2018/12/15 15:16:12 eric Exp $ */
24c1e55dcSeric /*
34c1e55dcSeric * Copyright (c) 2012 Eric Faurot <eric@openbsd.org>
44c1e55dcSeric *
54c1e55dcSeric * Permission to use, copy, modify, and distribute this software for any
64c1e55dcSeric * purpose with or without fee is hereby granted, provided that the above
74c1e55dcSeric * copyright notice and this permission notice appear in all copies.
84c1e55dcSeric *
94c1e55dcSeric * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
104c1e55dcSeric * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
114c1e55dcSeric * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
124c1e55dcSeric * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
134c1e55dcSeric * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
144c1e55dcSeric * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
154c1e55dcSeric * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
164c1e55dcSeric */
174c1e55dcSeric #include <sys/types.h>
184c1e55dcSeric #include <sys/socket.h>
194c1e55dcSeric
204c1e55dcSeric #include <netinet/in.h>
214c1e55dcSeric
224c1e55dcSeric #include <err.h>
234c1e55dcSeric #include <errno.h>
244c1e55dcSeric #include <getopt.h>
254c1e55dcSeric #include <netdb.h>
264c1e55dcSeric #include <stdio.h>
274c1e55dcSeric #include <stdlib.h>
284c1e55dcSeric #include <string.h>
294c1e55dcSeric
304c1e55dcSeric #include "common.h"
314c1e55dcSeric
324c1e55dcSeric static void
usage(void)334c1e55dcSeric usage(void)
344c1e55dcSeric {
354c1e55dcSeric extern const char * __progname;
364c1e55dcSeric
374c1e55dcSeric fprintf(stderr, "usage: %s [-CHSPe] [-f family] [-p proto] "
384c1e55dcSeric "[-s servname]\n [-t socktype] <host...>\n", __progname);
394c1e55dcSeric exit(1);
404c1e55dcSeric }
414c1e55dcSeric
424c1e55dcSeric int
main(int argc,char * argv[])434c1e55dcSeric main(int argc, char *argv[])
444c1e55dcSeric {
454c1e55dcSeric struct addrinfo *ai, *res, hints;
464c1e55dcSeric char *servname = NULL, *host;
474c1e55dcSeric int i, ch;
484c1e55dcSeric
494c1e55dcSeric memset(&hints, 0, sizeof hints);
504c1e55dcSeric
51*a9e85050Seric while((ch = getopt(argc, argv, "CFHPR:Sef:p:s:t:")) != -1) {
524c1e55dcSeric switch(ch) {
534c1e55dcSeric case 'C':
544c1e55dcSeric hints.ai_flags |= AI_CANONNAME;
554c1e55dcSeric break;
564c1e55dcSeric case 'F':
574c1e55dcSeric hints.ai_flags |= AI_FQDN;
584c1e55dcSeric break;
594c1e55dcSeric case 'H':
604c1e55dcSeric hints.ai_flags |= AI_NUMERICHOST;
614c1e55dcSeric break;
624c1e55dcSeric case 'P':
634c1e55dcSeric hints.ai_flags |= AI_PASSIVE;
644c1e55dcSeric break;
65*a9e85050Seric case 'R':
66*a9e85050Seric parseresopt(optarg);
67*a9e85050Seric break;
684c1e55dcSeric case 'S':
694c1e55dcSeric hints.ai_flags |= AI_NUMERICSERV;
704c1e55dcSeric break;
714c1e55dcSeric case 'e':
724c1e55dcSeric long_err += 1;
734c1e55dcSeric break;
744c1e55dcSeric case 'f':
754c1e55dcSeric if (!strcmp(optarg, "inet"))
764c1e55dcSeric hints.ai_family = AF_INET;
774c1e55dcSeric else if (!strcmp(optarg, "inet6"))
784c1e55dcSeric hints.ai_family = AF_INET6;
794c1e55dcSeric else
804c1e55dcSeric usage();
814c1e55dcSeric break;
824c1e55dcSeric case 'p':
834c1e55dcSeric if (!strcmp(optarg, "udp"))
844c1e55dcSeric hints.ai_protocol = IPPROTO_UDP;
854c1e55dcSeric else if (!strcmp(optarg, "tcp"))
864c1e55dcSeric hints.ai_protocol = IPPROTO_TCP;
87f2033d2fSeric else if (!strcmp(optarg, "icmp"))
88f2033d2fSeric hints.ai_protocol = IPPROTO_ICMP;
89f2033d2fSeric else if (!strcmp(optarg, "icmpv6"))
90f2033d2fSeric hints.ai_protocol = IPPROTO_ICMPV6;
914c1e55dcSeric else
924c1e55dcSeric usage();
934c1e55dcSeric break;
944c1e55dcSeric case 's':
954c1e55dcSeric servname = optarg;
964c1e55dcSeric break;
974c1e55dcSeric case 't':
984c1e55dcSeric if (!strcmp(optarg, "stream"))
994c1e55dcSeric hints.ai_socktype = SOCK_STREAM;
1004c1e55dcSeric else if (!strcmp(optarg, "dgram"))
1014c1e55dcSeric hints.ai_socktype = SOCK_DGRAM;
1024c1e55dcSeric else if (!strcmp(optarg, "raw"))
1034c1e55dcSeric hints.ai_socktype = SOCK_RAW;
1044c1e55dcSeric else
1054c1e55dcSeric usage();
1064c1e55dcSeric break;
1074c1e55dcSeric default:
1084c1e55dcSeric usage();
1094c1e55dcSeric /* NOTREACHED */
1104c1e55dcSeric }
1114c1e55dcSeric }
1124c1e55dcSeric argc -= optind;
1134c1e55dcSeric argv += optind;
1144c1e55dcSeric
1154c1e55dcSeric for(i = 0; i < argc; i++) {
1164c1e55dcSeric
1174c1e55dcSeric if (i)
1184c1e55dcSeric printf("\n");
1194c1e55dcSeric printf("===> \"%s\"\n", argv[i]);
1204c1e55dcSeric host = gethostarg(argv[i]);
1214c1e55dcSeric
1224c1e55dcSeric errno = 0;
1234c1e55dcSeric h_errno = 0;
1244c1e55dcSeric gai_errno = 0;
1254c1e55dcSeric rrset_errno = 0;
1264c1e55dcSeric
1274c1e55dcSeric gai_errno = getaddrinfo(host, servname, &hints, &ai);
1284c1e55dcSeric
1294c1e55dcSeric print_errors();
1304c1e55dcSeric if (gai_errno == 0) {
1314c1e55dcSeric for (res = ai; res; res = res->ai_next)
1324c1e55dcSeric print_addrinfo(res);
1334c1e55dcSeric freeaddrinfo(ai);
1344c1e55dcSeric }
1354c1e55dcSeric }
1364c1e55dcSeric
1374c1e55dcSeric return (0);
1384c1e55dcSeric }
139