/* $OpenBSD: whois.c,v 1.4 1998/02/24 10:09:50 deraadt Exp $ */ /* $NetBSD: whois.c,v 1.5 1994/11/14 05:13:25 jtc Exp $ */ /* * Copyright (c) 1980, 1993 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1980, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93"; #endif static char rcsid[] = "$OpenBSD: whois.c,v 1.4 1998/02/24 10:09:50 deraadt Exp $"; #endif /* not lint */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <netdb.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sysexits.h> #include <unistd.h> #define NICHOST "whois.internic.net" #define DNICHOST "nic.ddn.mil" #define ANICHOST "whois.arin.net" #define RNICHOST "whois.ripe.net" #define PNICHOST "whois.apnic.net" #define WHOIS_PORT 43 static void usage(); int main(argc, argv) int argc; char **argv; { extern char *optarg; extern int optind; register FILE *sfi, *sfo; register int ch; struct sockaddr_in sin; struct hostent *hp; struct servent *sp; int s; char *host; host = NICHOST; while ((ch = getopt(argc, argv, "adh:pr")) != -1) switch((char)ch) { case 'a': host = ANICHOST; break; case 'd': host = DNICHOST; break; case 'h': host = optarg; break; case 'p': host = PNICHOST; break; case 'r': host = RNICHOST; break; case '?': default: usage(); } argc -= optind; argv += optind; if (!argc) usage(); s = socket(PF_INET, SOCK_STREAM, 0); if (s < 0) err(EX_OSERR, "socket"); memset(&sin, 0, sizeof sin); sin.sin_len = sizeof sin; sin.sin_family = AF_INET; if (inet_aton(host, &sin.sin_addr) == 0) { hp = gethostbyname2(host, AF_INET); if (hp == NULL) errx(EX_NOHOST, "%s: %s", host, hstrerror(h_errno)); host = hp->h_name; sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0]; } sp = getservbyname("whois", "tcp"); if (sp == NULL) sin.sin_port = htons(WHOIS_PORT); else sin.sin_port = sp->s_port; if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) err(EX_OSERR, "connect"); sfi = fdopen(s, "r"); sfo = fdopen(s, "w"); if (sfi == NULL || sfo == NULL) err(EX_OSERR, "fdopen"); while (argc-- > 1) (void)fprintf(sfo, "%s ", *argv++); (void)fprintf(sfo, "%s\r\n", *argv); (void)fflush(sfo); while ((ch = getc(sfi)) != EOF) putchar(ch); exit(0); } static void usage() { (void)fprintf(stderr, "usage: whois [-adpr] [-h hostname] name ...\n"); exit(EX_USAGE); }