File: [local] / src / usr.bin / whois / whois.c (download)
Revision 1.7, Mon Nov 15 01:46:41 1999 UTC (24 years, 7 months ago) by millert
Branch: MAIN
Changes since 1.6: +22 -10 lines
From FreeBSD:
o Change default nic host to whois.crsnic.net to also get hosts registered
by registrars other than NSI.
o -i option to use NSI's nic host (whois.internic.net)
o -g option to use .gov nic host
o -R option to use .ru nic host
|
/* $OpenBSD: whois.c,v 1.7 1999/11/15 01:46:41 millert 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 1.7 1999/11/15 01:46:41 millert Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#define NICHOST "whois.crsnic.net"
#define INICHOST "whois.internic.net"
#define DNICHOST "whois.nic.mil"
#define GNICHOST "whois.nic.gov"
#define ANICHOST "whois.arin.net"
#define RNICHOST "whois.ripe.net"
#define PNICHOST "whois.apnic.net"
#define RUNICHOST "whois.ripn.net"
#define MNICHOST "whois.ra.net"
#define QNICHOST_TAIL ".whois-servers.net"
#define WHOIS_PORT 43
static void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
register FILE *sfi, *sfo;
register int ch;
struct sockaddr_in sin;
struct hostent *hp;
struct servent *sp;
int s;
char *host;
char *qnichost;
int use_qnichost;
int i, j;
host = NICHOST;
use_qnichost = 0;
while ((ch = getopt(argc, argv, "adgh:impqrR")) != -1)
switch((char)ch) {
case 'a':
host = ANICHOST;
break;
case 'd':
host = DNICHOST;
break;
case 'g':
host = GNICHOST;
break;
case 'h':
host = optarg;
break;
case 'i':
host = INICHOST;
break;
case 'm':
host = MNICHOST;
break;
case 'p':
host = PNICHOST;
break;
case 'q':
use_qnichost = 1;
break;
case 'r':
host = RNICHOST;
break;
case 'R':
host = RUNICHOST;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (!argc)
usage();
if (use_qnichost != 0) {
if (argc == 1) {
for (i = j = 0; (*argv)[i]; i++)
if ((*argv)[i] == '.') j = i;
if (j != 0) {
qnichost = (char *) calloc(i - j + 1 + \
strlen(QNICHOST_TAIL), sizeof(char));
if (!qnichost)
err(1, "malloc");
strcpy(qnichost, *argv + j + 1);
strcat(qnichost, QNICHOST_TAIL);
host = qnichost;
}
}
}
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 [-adgimpqrR] [-h hostname] name ...\n");
exit(EX_USAGE);
}