298 lines
7.1 KiB
C
298 lines
7.1 KiB
C
/*
|
|
* 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 const 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 const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <err.h>
|
|
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sysexits.h>
|
|
#include <unistd.h>
|
|
|
|
#define NICHOST "whois.crsnic.net"
|
|
#define INICHOST "whois.networksolutions.com"
|
|
#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 SNICHOST "whois.6bone.net"
|
|
#define WHOIS_PORT 43
|
|
|
|
#define WHOIS_RECURSE 0x01
|
|
#define WHOIS_INIC_FALLBACK 0x02
|
|
#define WHOIS_QUICK 0x04
|
|
|
|
static void usage __P((void));
|
|
static void whois __P((char *, struct addrinfo *, int));
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
int ch, i, j, error;
|
|
int use_qnichost, flags;
|
|
char *host;
|
|
char *qnichost;
|
|
struct addrinfo hints, *res;
|
|
|
|
#ifdef SOCKS
|
|
SOCKSinit(argv[0]);
|
|
#endif
|
|
|
|
host = NULL;
|
|
qnichost = NULL;
|
|
flags = 0;
|
|
use_qnichost = 0;
|
|
while ((ch = getopt(argc, argv, "adgh:impQrR6")) != -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':
|
|
flags |= WHOIS_QUICK;
|
|
break;
|
|
case 'r':
|
|
host = RNICHOST;
|
|
break;
|
|
case 'R':
|
|
host = RUNICHOST;
|
|
break;
|
|
case '6':
|
|
host = SNICHOST;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (!argc) {
|
|
usage();
|
|
}
|
|
|
|
/*
|
|
* If no nic host is specified, use whois-servers.net
|
|
* if there is a '.' in the name, else fall back to NICHOST.
|
|
*/
|
|
if (host == NULL) {
|
|
use_qnichost = 1;
|
|
host = NICHOST;
|
|
if (!(flags & WHOIS_QUICK)) {
|
|
flags |= WHOIS_INIC_FALLBACK | WHOIS_RECURSE;
|
|
}
|
|
}
|
|
while (argc--) {
|
|
if (use_qnichost) {
|
|
if (qnichost) {
|
|
free(qnichost);
|
|
qnichost = NULL;
|
|
}
|
|
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, "calloc");
|
|
}
|
|
strcpy(qnichost, *argv + j + 1);
|
|
strcat(qnichost, QNICHOST_TAIL);
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_flags = 0;
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
error = getaddrinfo(qnichost, "whois",
|
|
&hints, &res);
|
|
if (error != 0)
|
|
errx(EX_NOHOST, "%s: %s", qnichost,
|
|
gai_strerror(error));
|
|
}
|
|
}
|
|
if (!qnichost) {
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_flags = 0;
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
error = getaddrinfo(host, "whois", &hints, &res);
|
|
if (error != 0)
|
|
errx(EX_NOHOST, "%s: %s", host,
|
|
gai_strerror(error));
|
|
}
|
|
|
|
whois(*argv++, res, flags);
|
|
freeaddrinfo(res);
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
whois(name, res, flags)
|
|
char *name;
|
|
struct addrinfo *res;
|
|
int flags;
|
|
{
|
|
FILE *sfi, *sfo;
|
|
char *buf, *p, *nhost;
|
|
size_t len;
|
|
int s, nomatch;
|
|
|
|
s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
|
if (s < 0) {
|
|
err(EX_OSERR, "socket");
|
|
}
|
|
|
|
if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
|
|
err(EX_OSERR, "connect");
|
|
}
|
|
|
|
sfi = fdopen(s, "r");
|
|
sfo = fdopen(s, "w");
|
|
if (sfi == NULL || sfo == NULL) {
|
|
err(EX_OSERR, "fdopen");
|
|
}
|
|
(void)fprintf(sfo, "%s\r\n", name);
|
|
(void)fflush(sfo);
|
|
nhost = NULL;
|
|
nomatch = 0;
|
|
while ((buf = fgetln(sfi, &len))) {
|
|
if (buf[len - 2] == '\r') {
|
|
buf[len - 2] = '\0';
|
|
} else {
|
|
buf[len - 1] = '\0';
|
|
}
|
|
|
|
if ((flags & WHOIS_RECURSE) && !nhost &&
|
|
(p = strstr(buf, "Whois Server: "))) {
|
|
p += sizeof("Whois Server: ") - 1;
|
|
if ((len = strcspn(p, " \t\n\r"))) {
|
|
if ((nhost = malloc(len + 1)) == NULL) {
|
|
err(1, "malloc");
|
|
}
|
|
memcpy(nhost, p, len);
|
|
nhost[len] = '\0';
|
|
}
|
|
}
|
|
if ((flags & WHOIS_INIC_FALLBACK) && !nhost && !nomatch &&
|
|
(p = strstr(buf, "No match for \""))) {
|
|
p += sizeof("No match for \"") - 1;
|
|
if ((len = strcspn(p, "\"")) &&
|
|
strncasecmp(name, p, len) == 0 &&
|
|
name[len] == '\0' &&
|
|
strchr(name, '.') == NULL) {
|
|
nomatch = 1;
|
|
}
|
|
}
|
|
(void)puts(buf);
|
|
}
|
|
|
|
/* Do second lookup as needed */
|
|
if (nomatch && !nhost) {
|
|
(void)printf("Looking up %s at %s.\n\n", name, INICHOST);
|
|
nhost = INICHOST;
|
|
}
|
|
if (nhost) {
|
|
struct addrinfo hints, *res2;
|
|
int error;
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_flags = 0;
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
error = getaddrinfo(nhost, "whois", &hints, &res2);
|
|
if (error != 0) {
|
|
warnx("%s: %s", nhost, gai_strerror(error));
|
|
return;
|
|
}
|
|
if (!nomatch) {
|
|
free(nhost);
|
|
}
|
|
whois(name, res2, 0);
|
|
freeaddrinfo(res2);
|
|
}
|
|
}
|
|
|
|
static void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: whois [-adgimpQrR6] [-h hostname] name ...\n");
|
|
exit(EX_USAGE);
|
|
}
|