HAMMER VFS - Refactor merged search function to try to avoid missed entries
[dragonfly.git] / usr.bin / telnet / main.c
blob8cf268f71e97321e4b9465c273c7f43802094acc
1 /*
2 * Copyright (c) 1988, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
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
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
33 * @(#)main.c 8.3 (Berkeley) 5/30/95
34 * $FreeBSD: src/usr.bin/telnet/main.c,v 1.10.2.5 2002/04/13 11:07:13 markm Exp $
35 * $DragonFly: src/usr.bin/telnet/main.c,v 1.2 2003/06/17 04:29:32 dillon Exp $
38 #include <sys/types.h>
39 #include <sys/socket.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <unistd.h>
44 #include "ring.h"
45 #include "externs.h"
46 #include "defines.h"
49 /* These values need to be the same as defined in libtelnet/kerberos5.c */
50 /* Either define them in both places, or put in some common header file. */
51 #define OPTS_FORWARD_CREDS 0x00000002
52 #define OPTS_FORWARDABLE_CREDS 0x00000001
54 #if 0
55 #define FORWARD
56 #endif
58 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
59 char *ipsec_policy_in = NULL;
60 char *ipsec_policy_out = NULL;
61 #endif
63 int family = AF_UNSPEC;
66 * Initialize variables.
68 void
69 tninit(void)
71 init_terminal();
73 init_network();
75 init_telnet();
77 init_sys();
80 static void
81 usage(void)
83 fprintf(stderr, "Usage: %s %s%s%s%s\n",
84 prompt,
85 "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]",
86 "\n\t[-e char] [-l user] [-n tracefile] ",
87 "[-r] [-s src_addr] [-u] ",
88 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
89 "[-P policy] "
90 #endif
91 "[host-name [port]]"
93 exit(1);
97 * main. Parse arguments, invoke the protocol or command parser.
101 main(int argc, char *argv[])
103 int ch;
104 char *user;
105 char *src_addr = NULL;
106 #ifdef FORWARD
107 extern int forward_flags;
108 #endif /* FORWARD */
110 tninit(); /* Clear out things */
112 TerminalSaveState();
114 if ((prompt = strrchr(argv[0], '/')))
115 ++prompt;
116 else
117 prompt = argv[0];
119 user = NULL;
121 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
122 autologin = -1;
125 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
126 #define IPSECOPT "P:"
127 #else
128 #define IPSECOPT
129 #endif
130 while ((ch = getopt(argc, argv,
131 "468EKLNS:X:acde:fFk:l:n:rs:t:uxy" IPSECOPT)) != -1)
132 #undef IPSECOPT
134 switch(ch) {
135 case '4':
136 family = AF_INET;
137 break;
138 #ifdef INET6
139 case '6':
140 family = AF_INET6;
141 break;
142 #endif
143 case '8':
144 eight = 3; /* binary output and input */
145 break;
146 case 'E':
147 rlogin = escape = _POSIX_VDISABLE;
148 break;
149 case 'K':
150 break;
151 case 'L':
152 eight |= 2; /* binary output only */
153 break;
154 case 'N':
155 doaddrlookup = 0;
156 break;
157 case 'S':
159 #ifdef HAS_GETTOS
160 extern int tos;
162 if ((tos = parsetos(optarg, "tcp")) < 0)
163 fprintf(stderr, "%s%s%s%s\n",
164 prompt, ": Bad TOS argument '",
165 optarg,
166 "; will try to use default TOS");
167 #else
168 fprintf(stderr,
169 "%s: Warning: -S ignored, no parsetos() support.\n",
170 prompt);
171 #endif
173 break;
174 case 'X':
175 break;
176 case 'a':
177 autologin = 1;
178 break;
179 case 'c':
180 skiprc = 1;
181 break;
182 case 'd':
183 debug = 1;
184 break;
185 case 'e':
186 set_escape_char(optarg);
187 break;
188 case 'f':
189 fprintf(stderr,
190 "%s: Warning: -f ignored, no Kerberos V5 support.\n",
191 prompt);
192 break;
193 case 'F':
194 fprintf(stderr,
195 "%s: Warning: -F ignored, no Kerberos V5 support.\n",
196 prompt);
197 break;
198 case 'k':
199 fprintf(stderr,
200 "%s: Warning: -k ignored, no Kerberos V4 support.\n",
201 prompt);
202 break;
203 case 'l':
204 autologin = 1;
205 user = optarg;
206 break;
207 case 'n':
208 SetNetTrace(optarg);
209 break;
210 case 'r':
211 rlogin = '~';
212 break;
213 case 's':
214 src_addr = optarg;
215 break;
216 case 'u':
217 family = AF_UNIX;
218 break;
219 case 'x':
220 fprintf(stderr,
221 "%s: Warning: -x ignored, no ENCRYPT support.\n",
222 prompt);
223 break;
224 case 'y':
225 fprintf(stderr,
226 "%s: Warning: -y ignored, no ENCRYPT support.\n",
227 prompt);
228 break;
229 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
230 case 'P':
231 if (!strncmp("in", optarg, 2))
232 ipsec_policy_in = strdup(optarg);
233 else if (!strncmp("out", optarg, 3))
234 ipsec_policy_out = strdup(optarg);
235 else
236 usage();
237 break;
238 #endif
239 case '?':
240 default:
241 usage();
242 /* NOTREACHED */
245 if (autologin == -1)
246 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
248 argc -= optind;
249 argv += optind;
251 if (argc) {
252 char *args[9], **argp = args;
254 if (argc > 2)
255 usage();
256 *argp++ = prompt;
257 if (user) {
258 *argp++ = strdup("-l");
259 *argp++ = user;
261 if (src_addr) {
262 *argp++ = strdup("-s");
263 *argp++ = src_addr;
265 *argp++ = argv[0]; /* host */
266 if (argc > 1)
267 *argp++ = argv[1]; /* port */
268 *argp = 0;
270 if (setjmp(toplevel) != 0)
271 Exit(0);
272 if (tn(argp - args, args) == 1)
273 return (0);
274 else
275 return (1);
277 (void)setjmp(toplevel);
278 for (;;) {
279 command(1, 0, 0);
281 return 0;