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/*
* 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
static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#define NICHOST "whois.internic.net"
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;
#ifdef SOCKS
SOCKSinit(argv[0]);
#endif
host = NICHOST;
while ((ch = getopt(argc, argv, "h:")) != -1)
switch((char)ch) {
case 'h':
host = optarg;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (!argc)
usage();
hp = gethostbyname(host);
if (hp == NULL) {
(void)fprintf(stderr, "whois: %s: ", host);
herror((char *)NULL);
exit(1);
}
host = hp->h_name;
s = socket(hp->h_addrtype, SOCK_STREAM, 0);
if (s < 0) {
perror("whois: socket");
exit(1);
}
bzero((caddr_t)&sin, sizeof (sin));
sin.sin_family = hp->h_addrtype;
bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length);
sp = getservbyname("whois", "tcp");
if (sp == NULL) {
(void)fprintf(stderr, "whois: whois/tcp: unknown service\n");
exit(1);
}
sin.sin_port = sp->s_port;
if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
perror("whois: connect");
exit(1);
}
sfi = fdopen(s, "r");
sfo = fdopen(s, "w");
if (sfi == NULL || sfo == NULL) {
perror("whois: fdopen");
(void)close(s);
exit(1);
}
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);
}
usage()
{
(void)fprintf(stderr, "usage: whois [-h hostname] name ...\n");
exit(1);
}
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