Annotation of src/usr.bin/whois/whois.c, Revision 1.6
1.6 ! deraadt 1: /* $OpenBSD: whois.c,v 1.5 1999/08/16 20:24:36 art Exp $ */
1.1 deraadt 2: /* $NetBSD: whois.c,v 1.5 1994/11/14 05:13:25 jtc Exp $ */
3:
4: /*
5: * Copyright (c) 1980, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: static char copyright[] =
39: "@(#) Copyright (c) 1980, 1993\n\
40: The Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
44: #if 0
45: static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93";
46: #endif
1.6 ! deraadt 47: static char rcsid[] = "$OpenBSD: whois.c,v 1.5 1999/08/16 20:24:36 art Exp $";
1.1 deraadt 48: #endif /* not lint */
49:
50: #include <sys/types.h>
51: #include <sys/socket.h>
52: #include <netinet/in.h>
1.5 art 53: #include <arpa/inet.h>
1.1 deraadt 54: #include <netdb.h>
55: #include <stdio.h>
56: #include <stdlib.h>
57: #include <string.h>
1.4 deraadt 58: #include <sysexits.h>
1.1 deraadt 59: #include <unistd.h>
1.5 art 60: #include <err.h>
1.1 deraadt 61:
1.4 deraadt 62: #define NICHOST "whois.internic.net"
63: #define DNICHOST "nic.ddn.mil"
64: #define ANICHOST "whois.arin.net"
65: #define RNICHOST "whois.ripe.net"
66: #define PNICHOST "whois.apnic.net"
1.6 ! deraadt 67: #define MNICHOST "whois.ra.net"
! 68: #define QNICHOST_TAIL ".whois-servers.net"
1.4 deraadt 69: #define WHOIS_PORT 43
1.1 deraadt 70:
71: static void usage();
72:
73: int
74: main(argc, argv)
75: int argc;
76: char **argv;
77: {
78: extern char *optarg;
79: extern int optind;
80: register FILE *sfi, *sfo;
81: register int ch;
82: struct sockaddr_in sin;
83: struct hostent *hp;
84: struct servent *sp;
85: int s;
86: char *host;
1.6 ! deraadt 87: char *qnichost;
! 88: int use_qnichost;
! 89: int i, j;
1.1 deraadt 90:
91: host = NICHOST;
1.6 ! deraadt 92: use_qnichost = 0;
! 93: while ((ch = getopt(argc, argv, "adh:pmqr")) != -1)
1.1 deraadt 94: switch((char)ch) {
1.4 deraadt 95: case 'a':
96: host = ANICHOST;
97: break;
98: case 'd':
99: host = DNICHOST;
100: break;
1.1 deraadt 101: case 'h':
102: host = optarg;
103: break;
1.6 ! deraadt 104: case 'm':
! 105: host = MNICHOST;
! 106: break;
1.4 deraadt 107: case 'p':
108: host = PNICHOST;
109: break;
1.6 ! deraadt 110: case 'q':
! 111: use_qnichost = 1;
! 112: break;
1.4 deraadt 113: case 'r':
114: host = RNICHOST;
115: break;
1.1 deraadt 116: case '?':
117: default:
118: usage();
119: }
120: argc -= optind;
121: argv += optind;
122:
123: if (!argc)
124: usage();
125:
1.6 ! deraadt 126: if (use_qnichost != 0) {
! 127: if (argc == 1) {
! 128: for (i = j = 0; (*argv)[i]; i++)
! 129: if ((*argv)[i] == '.') j = i;
! 130: if (j != 0) {
! 131: qnichost = (char *) calloc(i - j + 1 + \
! 132: strlen(QNICHOST_TAIL), sizeof(char));
! 133: if (!qnichost)
! 134: err(1, "malloc");
! 135: strcpy(qnichost, *argv + j + 1);
! 136: strcat(qnichost, QNICHOST_TAIL);
! 137: host = qnichost;
! 138: }
! 139: }
! 140: }
! 141:
1.4 deraadt 142: s = socket(PF_INET, SOCK_STREAM, 0);
143: if (s < 0)
144: err(EX_OSERR, "socket");
145:
146: memset(&sin, 0, sizeof sin);
147: sin.sin_len = sizeof sin;
148: sin.sin_family = AF_INET;
149:
150: if (inet_aton(host, &sin.sin_addr) == 0) {
151: hp = gethostbyname2(host, AF_INET);
152: if (hp == NULL)
153: errx(EX_NOHOST, "%s: %s", host, hstrerror(h_errno));
154: host = hp->h_name;
155: sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
1.1 deraadt 156: }
1.4 deraadt 157:
1.1 deraadt 158: sp = getservbyname("whois", "tcp");
1.4 deraadt 159: if (sp == NULL)
160: sin.sin_port = htons(WHOIS_PORT);
161: else
162: sin.sin_port = sp->s_port;
163:
164: if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0)
165: err(EX_OSERR, "connect");
166:
1.1 deraadt 167: sfi = fdopen(s, "r");
168: sfo = fdopen(s, "w");
1.4 deraadt 169: if (sfi == NULL || sfo == NULL)
170: err(EX_OSERR, "fdopen");
1.1 deraadt 171: while (argc-- > 1)
172: (void)fprintf(sfo, "%s ", *argv++);
173: (void)fprintf(sfo, "%s\r\n", *argv);
174: (void)fflush(sfo);
175: while ((ch = getc(sfi)) != EOF)
176: putchar(ch);
177: exit(0);
178: }
179:
180: static void
181: usage()
182: {
1.6 ! deraadt 183: (void)fprintf(stderr, "usage: whois [-admpqr] [-h hostname] name ...\n");
1.4 deraadt 184: exit(EX_USAGE);
1.1 deraadt 185: }
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