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whois.c (53048) whois.c (53291)
1/*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 28 unchanged lines hidden (view full) ---

37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
1/*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 28 unchanged lines hidden (view full) ---

37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
45 "$FreeBSD: head/usr.bin/whois/whois.c 53048 1999-11-09 09:01:38Z ache $";
45 "$FreeBSD: head/usr.bin/whois/whois.c 53291 1999-11-17 19:11:51Z ache $";
46#endif /* not lint */
47
48#include <sys/types.h>
49#include <sys/socket.h>
50#include <netinet/in.h>
51#include <arpa/inet.h>
52#include <err.h>
53#include <netdb.h>
54#include <stdio.h>
46#endif /* not lint */
47
48#include <sys/types.h>
49#include <sys/socket.h>
50#include <netinet/in.h>
51#include <arpa/inet.h>
52#include <err.h>
53#include <netdb.h>
54#include <stdio.h>
55#include <stdlib.h>
55#include <string.h>
56#include <sysexits.h>
57#include <unistd.h>
58
56#include <string.h>
57#include <sysexits.h>
58#include <unistd.h>
59
59#define NICHOST "whois.crsnic.net"
60#define INICHOST "whois.internic.net"
60#define NICHOST "whois.crsnic.net"
61#define INICHOST "whois.internic.net"
61#define DNICHOST "whois.nic.mil"
62#define GNICHOST "whois.nic.gov"
63#define ANICHOST "whois.arin.net"
64#define RNICHOST "whois.ripe.net"
65#define PNICHOST "whois.apnic.net"
62#define DNICHOST "whois.nic.mil"
63#define GNICHOST "whois.nic.gov"
64#define ANICHOST "whois.arin.net"
65#define RNICHOST "whois.ripe.net"
66#define PNICHOST "whois.apnic.net"
66#define RUNICHOST "whois.ripn.net"
67#define RUNICHOST "whois.ripn.net"
68#define MNICHOST "whois.ra.net"
69#define QNICHOST_TAIL ".whois-servers.net"
67#define WHOIS_PORT 43
68
70#define WHOIS_PORT 43
71
72#define WHOIS_RECURSE 0x01
73#define WHOIS_INIC_FALLBACK 0x02
74#define WHOIS_QUICK 0x04
75
69static void usage __P((void));
76static void usage __P((void));
77static void whois __P((char *, struct sockaddr_in *, int));
70
71int
72main(argc, argv)
73 int argc;
74 char **argv;
75{
78
79int
80main(argc, argv)
81 int argc;
82 char **argv;
83{
76 register FILE *sfi, *sfo;
77 register int ch;
78 struct sockaddr_in sin;
79 struct hostent *hp;
80 struct servent *sp;
81 int s;
84 int ch, i, j;
85 int use_qnichost, flags;
82 char *host;
86 char *host;
87 char *qnichost;
88 struct servent *sp;
89 struct hostent *hp;
90 struct sockaddr_in sin;
83
84#ifdef SOCKS
85 SOCKSinit(argv[0]);
86#endif
87
91
92#ifdef SOCKS
93 SOCKSinit(argv[0]);
94#endif
95
88 host = NICHOST;
89 while ((ch = getopt(argc, argv, "adgh:iprR")) != -1)
96 host = NULL;
97 qnichost = NULL;
98 flags = 0;
99 use_qnichost = 0;
100 while ((ch = getopt(argc, argv, "adgh:impQrR")) != -1)
90 switch((char)ch) {
91 case 'a':
92 host = ANICHOST;
93 break;
94 case 'd':
95 host = DNICHOST;
96 break;
97 case 'g':
98 host = GNICHOST;
99 break;
100 case 'h':
101 host = optarg;
102 break;
103 case 'i':
104 host = INICHOST;
105 break;
101 switch((char)ch) {
102 case 'a':
103 host = ANICHOST;
104 break;
105 case 'd':
106 host = DNICHOST;
107 break;
108 case 'g':
109 host = GNICHOST;
110 break;
111 case 'h':
112 host = optarg;
113 break;
114 case 'i':
115 host = INICHOST;
116 break;
117 case 'm':
118 host = MNICHOST;
119 break;
106 case 'p':
107 host = PNICHOST;
108 break;
120 case 'p':
121 host = PNICHOST;
122 break;
123 case 'Q':
124 flags |= WHOIS_QUICK;
125 break;
109 case 'r':
110 host = RNICHOST;
111 break;
112 case 'R':
113 host = RUNICHOST;
114 break;
115 case '?':
116 default:
117 usage();
118 }
119 argc -= optind;
120 argv += optind;
121
122 if (!argc)
123 usage();
124
126 case 'r':
127 host = RNICHOST;
128 break;
129 case 'R':
130 host = RUNICHOST;
131 break;
132 case '?':
133 default:
134 usage();
135 }
136 argc -= optind;
137 argv += optind;
138
139 if (!argc)
140 usage();
141
125 s = socket(PF_INET, SOCK_STREAM, 0);
126 if (s < 0)
127 err(EX_OSERR, "socket");
128
129 memset(&sin, 0, sizeof sin);
130 sin.sin_len = sizeof sin;
142 memset(&sin, 0, sizeof(sin));
143 sin.sin_len = sizeof(sin);
131 sin.sin_family = AF_INET;
144 sin.sin_family = AF_INET;
132
133 if (inet_aton(host, &sin.sin_addr) == 0) {
134 hp = gethostbyname2(host, AF_INET);
135 if (hp == NULL)
136 errx(EX_NOHOST, "%s: %s", host, hstrerror(h_errno));
137 host = hp->h_name;
138 sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
139 }
140
141 sp = getservbyname("whois", "tcp");
142 if (sp == NULL)
143 sin.sin_port = htons(WHOIS_PORT);
144 else
145 sin.sin_port = sp->s_port;
146
145 sp = getservbyname("whois", "tcp");
146 if (sp == NULL)
147 sin.sin_port = htons(WHOIS_PORT);
148 else
149 sin.sin_port = sp->s_port;
150
147 if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0)
151 /*
152 * If no nic host is specified, use whois-servers.net
153 * if there is a '.' in the name, else fall back to NICHOST.
154 */
155 if (host == NULL) {
156 use_qnichost = 1;
157 host = NICHOST;
158 if (!(flags & WHOIS_QUICK))
159 flags |= WHOIS_INIC_FALLBACK | WHOIS_RECURSE;
160 }
161 while (argc--) {
162 if (use_qnichost) {
163 if (qnichost) {
164 free(qnichost);
165 qnichost = NULL;
166 }
167 for (i = j = 0; (*argv)[i]; i++)
168 if ((*argv)[i] == '.')
169 j = i;
170 if (j != 0) {
171 qnichost = (char *) calloc(i - j + 1 +
172 strlen(QNICHOST_TAIL), sizeof(char));
173 if (!qnichost)
174 err(1, "calloc");
175 strcpy(qnichost, *argv + j + 1);
176 strcat(qnichost, QNICHOST_TAIL);
177
178 if (inet_aton(qnichost, &sin.sin_addr) == 0) {
179 hp = gethostbyname2(qnichost, AF_INET);
180 if (hp == NULL) {
181 free(qnichost);
182 qnichost = NULL;
183 } else {
184 sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
185 }
186 }
187 }
188 }
189 if (!qnichost && inet_aton(host, &sin.sin_addr) == 0) {
190 hp = gethostbyname2(host, AF_INET);
191 if (hp == NULL)
192 errx(EX_NOHOST, "%s: %s", host,
193 hstrerror(h_errno));
194 host = hp->h_name;
195 sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
196 }
197
198 whois(*argv++, &sin, flags);
199 }
200 exit(0);
201}
202
203static void
204whois(name, sinp, flags)
205 char *name;
206 struct sockaddr_in *sinp;
207 int flags;
208{
209 FILE *sfi, *sfo;
210 char *buf, *p, *nhost;
211 size_t len;
212 int s, nomatch;
213
214 s = socket(PF_INET, SOCK_STREAM, 0);
215 if (s < 0)
216 err(EX_OSERR, "socket");
217
218 if (connect(s, (struct sockaddr *)sinp, sizeof(*sinp)) < 0)
148 err(EX_OSERR, "connect");
149
150 sfi = fdopen(s, "r");
151 sfo = fdopen(s, "w");
152 if (sfi == NULL || sfo == NULL)
153 err(EX_OSERR, "fdopen");
219 err(EX_OSERR, "connect");
220
221 sfi = fdopen(s, "r");
222 sfo = fdopen(s, "w");
223 if (sfi == NULL || sfo == NULL)
224 err(EX_OSERR, "fdopen");
154 while (argc-- > 1)
155 (void)fprintf(sfo, "%s ", *argv++);
156 (void)fprintf(sfo, "%s\r\n", *argv);
225 (void)fprintf(sfo, "%s\r\n", name);
157 (void)fflush(sfo);
226 (void)fflush(sfo);
158 while ((ch = getc(sfi)) != EOF)
159 putchar(ch);
160 exit(0);
227 nhost = NULL;
228 nomatch = 0;
229 while ((buf = fgetln(sfi, &len))) {
230 if (buf[len - 2] == '\r')
231 buf[len - 2] = '\0';
232 else
233 buf[len - 1] = '\0';
234
235 if ((flags & WHOIS_RECURSE) && !nhost &&
236 (p = strstr(buf, "Whois Server: "))) {
237 p += sizeof("Whois Server: ") - 1;
238 if ((len = strcspn(p, " \t\n\r"))) {
239 if ((nhost = malloc(len + 1)) == NULL)
240 err(1, "malloc");
241 memcpy(nhost, p, len);
242 nhost[len] = '\0';
243 }
244 }
245 if ((flags & WHOIS_INIC_FALLBACK) && !nhost && !nomatch &&
246 (p = strstr(buf, "No match for \""))) {
247 p += sizeof("No match for \"") - 1;
248 if ((len = strcspn(p, "\"")) &&
249 name[len] == '\0' &&
250 strncasecmp(name, p, len) == 0 &&
251 strchr(name, '.') == NULL)
252 nomatch = 1;
253 }
254 (void)puts(buf);
255 }
256
257 /* Do second lookup as needed */
258 if (nomatch && !nhost) {
259 (void)printf("Looking up %s at %s.\n\n", name, INICHOST);
260 nhost = INICHOST;
261 }
262 if (nhost) {
263 if (inet_aton(nhost, &sinp->sin_addr) == 0) {
264 struct hostent *hp = gethostbyname2(nhost, AF_INET);
265 if (hp == NULL)
266 return;
267 sinp->sin_addr = *(struct in_addr *)hp->h_addr_list[0];
268 }
269 if (!nomatch)
270 free(nhost);
271 whois(name, sinp, 0);
272 }
161}
162
163static void
164usage()
165{
273}
274
275static void
276usage()
277{
166 fprintf(stderr, "usage: whois [-adgiprR] [-h hostname] name ...\n");
278 (void)fprintf(stderr,
279 "usage: whois [-adgimpQrR] [-h hostname] name ...\n");
167 exit(EX_USAGE);
168}
280 exit(EX_USAGE);
281}