blob: f62905c293ae0b90c657a29e3a8afd8d7d20827a [file] [log] [blame]
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001/*
Damien Miller95def091999-11-25 00:26:21 +11002 * Author: Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller95def091999-11-25 00:26:21 +11003 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4 * All rights reserved
Damien Miller95def091999-11-25 00:26:21 +11005 * Functions for reading the configuration files.
Damien Miller4af51302000-04-16 11:18:38 +10006 *
Damien Millere4340be2000-09-16 13:29:08 +11007 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
Damien Miller95def091999-11-25 00:26:21 +110012 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100013
14#include "includes.h"
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +000015RCSID("$OpenBSD: readconf.c,v 1.61 2001/02/08 14:39:36 deraadt Exp $");
Damien Millerd4a8b7e1999-10-27 13:42:43 +100016
17#include "ssh.h"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100018#include "xmalloc.h"
Damien Miller78928792000-04-12 20:17:38 +100019#include "compat.h"
Ben Lindstrom226cfa02001-01-22 05:34:40 +000020#include "cipher.h"
21#include "pathnames.h"
22#include "log.h"
23#include "readconf.h"
24#include "match.h"
25#include "misc.h"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100026
27/* Format of the configuration file:
28
29 # Configuration data is parsed as follows:
30 # 1. command line options
31 # 2. user-specific file
32 # 3. system-wide file
33 # Any configuration value is only changed the first time it is set.
34 # Thus, host-specific definitions should be at the beginning of the
35 # configuration file, and defaults at the end.
36
37 # Host-specific declarations. These may override anything above. A single
38 # host may match multiple declarations; these are processed in the order
39 # that they are given in.
40
41 Host *.ngs.fi ngs.fi
42 FallBackToRsh no
43
44 Host fake.com
45 HostName another.host.name.real.org
46 User blaah
47 Port 34289
48 ForwardX11 no
49 ForwardAgent no
50
51 Host books.com
52 RemoteForward 9999 shadows.cs.hut.fi:9999
53 Cipher 3des
54
55 Host fascist.blob.com
56 Port 23123
57 User tylonen
58 RhostsAuthentication no
59 PasswordAuthentication no
60
61 Host puukko.hut.fi
62 User t35124p
63 ProxyCommand ssh-proxy %h %p
64
65 Host *.fr
66 UseRsh yes
67
68 Host *.su
69 Cipher none
70 PasswordAuthentication no
71
72 # Defaults for various options
73 Host *
74 ForwardAgent no
Damien Miller0bc1bd82000-11-13 22:57:25 +110075 ForwardX11 no
Damien Millerd4a8b7e1999-10-27 13:42:43 +100076 RhostsAuthentication yes
77 PasswordAuthentication yes
78 RSAAuthentication yes
79 RhostsRSAAuthentication yes
80 FallBackToRsh no
81 UseRsh no
82 StrictHostKeyChecking yes
83 KeepAlives no
84 IdentityFile ~/.ssh/identity
85 Port 22
86 EscapeChar ~
87
88*/
89
90/* Keyword tokens. */
91
Damien Miller95def091999-11-25 00:26:21 +110092typedef enum {
93 oBadOption,
94 oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication,
95 oPasswordAuthentication, oRSAAuthentication, oFallBackToRsh, oUseRsh,
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +000096 oChallengeResponseAuthentication, oXAuthLocation,
Damien Millerd4a8b7e1999-10-27 13:42:43 +100097#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +110098 oKerberosAuthentication,
Damien Millerd4a8b7e1999-10-27 13:42:43 +100099#endif /* KRB4 */
100#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +1100101 oKerberosTgtPassing, oAFSTokenPassing,
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000102#endif
Damien Miller95def091999-11-25 00:26:21 +1100103 oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward,
104 oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand,
105 oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts,
106 oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression,
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000107 oCompressionLevel, oKeepAlives, oNumberOfPasswordPrompts,
Damien Miller0bc1bd82000-11-13 22:57:25 +1100108 oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol,
109 oGlobalKnownHostsFile2, oUserKnownHostsFile2, oPubkeyAuthentication,
Ben Lindstrom4dccfa52000-12-28 16:40:05 +0000110 oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000111} OpCodes;
112
113/* Textual representations of the tokens. */
114
Damien Miller95def091999-11-25 00:26:21 +1100115static struct {
116 const char *name;
117 OpCodes opcode;
118} keywords[] = {
119 { "forwardagent", oForwardAgent },
120 { "forwardx11", oForwardX11 },
Damien Millerd3a18572000-06-07 19:55:44 +1000121 { "xauthlocation", oXAuthLocation },
Damien Miller95def091999-11-25 00:26:21 +1100122 { "gatewayports", oGatewayPorts },
123 { "useprivilegedport", oUsePrivilegedPort },
124 { "rhostsauthentication", oRhostsAuthentication },
125 { "passwordauthentication", oPasswordAuthentication },
Damien Miller874d77b2000-10-14 16:23:11 +1100126 { "kbdinteractiveauthentication", oKbdInteractiveAuthentication },
127 { "kbdinteractivedevices", oKbdInteractiveDevices },
Damien Miller95def091999-11-25 00:26:21 +1100128 { "rsaauthentication", oRSAAuthentication },
Damien Miller0bc1bd82000-11-13 22:57:25 +1100129 { "pubkeyauthentication", oPubkeyAuthentication },
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000130 { "dsaauthentication", oPubkeyAuthentication }, /* alias */
131 { "challengeresponseauthentication", oChallengeResponseAuthentication },
132 { "skeyauthentication", oChallengeResponseAuthentication }, /* alias */
133 { "tisauthentication", oChallengeResponseAuthentication }, /* alias */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000134#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +1100135 { "kerberosauthentication", oKerberosAuthentication },
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000136#endif /* KRB4 */
137#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +1100138 { "kerberostgtpassing", oKerberosTgtPassing },
139 { "afstokenpassing", oAFSTokenPassing },
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000140#endif
Damien Miller95def091999-11-25 00:26:21 +1100141 { "fallbacktorsh", oFallBackToRsh },
142 { "usersh", oUseRsh },
143 { "identityfile", oIdentityFile },
Damien Miller0bc1bd82000-11-13 22:57:25 +1100144 { "identityfile2", oIdentityFile }, /* alias */
Damien Miller95def091999-11-25 00:26:21 +1100145 { "hostname", oHostName },
Ben Lindstrom4dccfa52000-12-28 16:40:05 +0000146 { "hostkeyalias", oHostKeyAlias },
Damien Miller95def091999-11-25 00:26:21 +1100147 { "proxycommand", oProxyCommand },
148 { "port", oPort },
149 { "cipher", oCipher },
Damien Miller78928792000-04-12 20:17:38 +1000150 { "ciphers", oCiphers },
151 { "protocol", oProtocol },
Damien Miller95def091999-11-25 00:26:21 +1100152 { "remoteforward", oRemoteForward },
153 { "localforward", oLocalForward },
154 { "user", oUser },
155 { "host", oHost },
156 { "escapechar", oEscapeChar },
157 { "rhostsrsaauthentication", oRhostsRSAAuthentication },
158 { "globalknownhostsfile", oGlobalKnownHostsFile },
159 { "userknownhostsfile", oUserKnownHostsFile },
Damien Millereba71ba2000-04-29 23:57:08 +1000160 { "globalknownhostsfile2", oGlobalKnownHostsFile2 },
161 { "userknownhostsfile2", oUserKnownHostsFile2 },
Damien Miller95def091999-11-25 00:26:21 +1100162 { "connectionattempts", oConnectionAttempts },
163 { "batchmode", oBatchMode },
164 { "checkhostip", oCheckHostIP },
165 { "stricthostkeychecking", oStrictHostKeyChecking },
166 { "compression", oCompression },
167 { "compressionlevel", oCompressionLevel },
168 { "keepalive", oKeepAlives },
169 { "numberofpasswordprompts", oNumberOfPasswordPrompts },
Damien Miller95def091999-11-25 00:26:21 +1100170 { "loglevel", oLogLevel },
171 { NULL, 0 }
Damien Miller5ce662a1999-11-11 17:57:39 +1100172};
173
Damien Miller5428f641999-11-25 11:54:57 +1100174/*
175 * Adds a local TCP/IP port forward to options. Never returns if there is an
176 * error.
177 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000178
Damien Miller4af51302000-04-16 11:18:38 +1000179void
Damien Milleraae6c611999-12-06 11:47:28 +1100180add_local_forward(Options *options, u_short port, const char *host,
181 u_short host_port)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000182{
Damien Miller95def091999-11-25 00:26:21 +1100183 Forward *fwd;
Damien Millerbac2d8a2000-09-05 16:13:06 +1100184#ifndef HAVE_CYGWIN
Damien Miller95def091999-11-25 00:26:21 +1100185 extern uid_t original_real_uid;
Damien Miller95def091999-11-25 00:26:21 +1100186 if (port < IPPORT_RESERVED && original_real_uid != 0)
187 fatal("Privileged ports can only be forwarded by root.\n");
Damien Millerbac2d8a2000-09-05 16:13:06 +1100188#endif
Damien Miller95def091999-11-25 00:26:21 +1100189 if (options->num_local_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION)
190 fatal("Too many local forwards (max %d).", SSH_MAX_FORWARDS_PER_DIRECTION);
191 fwd = &options->local_forwards[options->num_local_forwards++];
192 fwd->port = port;
193 fwd->host = xstrdup(host);
194 fwd->host_port = host_port;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000195}
196
Damien Miller5428f641999-11-25 11:54:57 +1100197/*
198 * Adds a remote TCP/IP port forward to options. Never returns if there is
199 * an error.
200 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000201
Damien Miller4af51302000-04-16 11:18:38 +1000202void
Damien Milleraae6c611999-12-06 11:47:28 +1100203add_remote_forward(Options *options, u_short port, const char *host,
204 u_short host_port)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000205{
Damien Miller95def091999-11-25 00:26:21 +1100206 Forward *fwd;
207 if (options->num_remote_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION)
208 fatal("Too many remote forwards (max %d).",
209 SSH_MAX_FORWARDS_PER_DIRECTION);
210 fwd = &options->remote_forwards[options->num_remote_forwards++];
211 fwd->port = port;
212 fwd->host = xstrdup(host);
213 fwd->host_port = host_port;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000214}
215
Damien Miller5428f641999-11-25 11:54:57 +1100216/*
217 * Returns the number of the token pointed to by cp of length len. Never
218 * returns if the token is not known.
219 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000220
Damien Miller4af51302000-04-16 11:18:38 +1000221static OpCodes
Damien Miller95def091999-11-25 00:26:21 +1100222parse_token(const char *cp, const char *filename, int linenum)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000223{
Ben Lindstrom46c16222000-12-22 01:43:59 +0000224 u_int i;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000225
Damien Miller95def091999-11-25 00:26:21 +1100226 for (i = 0; keywords[i].name; i++)
Damien Miller5428f641999-11-25 11:54:57 +1100227 if (strcasecmp(cp, keywords[i].name) == 0)
Damien Miller95def091999-11-25 00:26:21 +1100228 return keywords[i].opcode;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000229
Damien Miller95def091999-11-25 00:26:21 +1100230 fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
231 filename, linenum, cp);
232 return oBadOption;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000233}
234
Damien Miller5428f641999-11-25 11:54:57 +1100235/*
236 * Processes a single option line as used in the configuration files. This
237 * only sets those values that have not already been set.
238 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000239
Damien Miller2ccf6611999-11-15 15:25:10 +1100240int
241process_config_line(Options *options, const char *host,
Damien Miller95def091999-11-25 00:26:21 +1100242 char *line, const char *filename, int linenum,
243 int *activep)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000244{
Damien Miller37023962000-07-11 17:31:38 +1000245 char buf[256], *s, *string, **charptr, *endofnumber, *keyword, *arg;
Damien Milleraae6c611999-12-06 11:47:28 +1100246 int opcode, *intptr, value;
247 u_short fwd_port, fwd_host_port;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000248
Damien Millerbe484b52000-07-15 14:14:16 +1000249 s = line;
250 /* Get the keyword. (Each line is supposed to begin with a keyword). */
251 keyword = strdelim(&s);
252 /* Ignore leading whitespace. */
253 if (*keyword == '\0')
254 keyword = strdelim(&s);
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000255 if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#')
Damien Miller95def091999-11-25 00:26:21 +1100256 return 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000257
Damien Miller37023962000-07-11 17:31:38 +1000258 opcode = parse_token(keyword, filename, linenum);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000259
Damien Miller95def091999-11-25 00:26:21 +1100260 switch (opcode) {
261 case oBadOption:
Damien Miller5428f641999-11-25 11:54:57 +1100262 /* don't panic, but count bad options */
263 return -1;
Damien Miller95def091999-11-25 00:26:21 +1100264 /* NOTREACHED */
265 case oForwardAgent:
266 intptr = &options->forward_agent;
267parse_flag:
Damien Millerbe484b52000-07-15 14:14:16 +1000268 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000269 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100270 fatal("%.200s line %d: Missing yes/no argument.", filename, linenum);
271 value = 0; /* To avoid compiler warning... */
Damien Miller37023962000-07-11 17:31:38 +1000272 if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100273 value = 1;
Damien Miller37023962000-07-11 17:31:38 +1000274 else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100275 value = 0;
276 else
277 fatal("%.200s line %d: Bad yes/no argument.", filename, linenum);
278 if (*activep && *intptr == -1)
279 *intptr = value;
280 break;
281
282 case oForwardX11:
283 intptr = &options->forward_x11;
284 goto parse_flag;
285
286 case oGatewayPorts:
287 intptr = &options->gateway_ports;
288 goto parse_flag;
289
290 case oUsePrivilegedPort:
291 intptr = &options->use_privileged_port;
292 goto parse_flag;
293
294 case oRhostsAuthentication:
295 intptr = &options->rhosts_authentication;
296 goto parse_flag;
297
298 case oPasswordAuthentication:
299 intptr = &options->password_authentication;
300 goto parse_flag;
301
Damien Miller874d77b2000-10-14 16:23:11 +1100302 case oKbdInteractiveAuthentication:
303 intptr = &options->kbd_interactive_authentication;
304 goto parse_flag;
305
306 case oKbdInteractiveDevices:
307 charptr = &options->kbd_interactive_devices;
308 goto parse_string;
309
Damien Miller0bc1bd82000-11-13 22:57:25 +1100310 case oPubkeyAuthentication:
311 intptr = &options->pubkey_authentication;
Damien Millere247cc42000-05-07 12:03:14 +1000312 goto parse_flag;
313
Damien Miller95def091999-11-25 00:26:21 +1100314 case oRSAAuthentication:
315 intptr = &options->rsa_authentication;
316 goto parse_flag;
317
318 case oRhostsRSAAuthentication:
319 intptr = &options->rhosts_rsa_authentication;
320 goto parse_flag;
321
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000322 case oChallengeResponseAuthentication:
323 intptr = &options->challenge_reponse_authentication;
Damien Miller95def091999-11-25 00:26:21 +1100324 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000325
326#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +1100327 case oKerberosAuthentication:
328 intptr = &options->kerberos_authentication;
329 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000330#endif /* KRB4 */
331
332#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +1100333 case oKerberosTgtPassing:
334 intptr = &options->kerberos_tgt_passing;
335 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000336
Damien Miller95def091999-11-25 00:26:21 +1100337 case oAFSTokenPassing:
338 intptr = &options->afs_token_passing;
339 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000340#endif
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000341
Damien Miller95def091999-11-25 00:26:21 +1100342 case oFallBackToRsh:
343 intptr = &options->fallback_to_rsh;
344 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000345
Damien Miller95def091999-11-25 00:26:21 +1100346 case oUseRsh:
347 intptr = &options->use_rsh;
348 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000349
Damien Miller95def091999-11-25 00:26:21 +1100350 case oBatchMode:
351 intptr = &options->batch_mode;
352 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000353
Damien Miller95def091999-11-25 00:26:21 +1100354 case oCheckHostIP:
355 intptr = &options->check_host_ip;
356 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000357
Damien Miller95def091999-11-25 00:26:21 +1100358 case oStrictHostKeyChecking:
359 intptr = &options->strict_host_key_checking;
Damien Millerbe484b52000-07-15 14:14:16 +1000360 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000361 if (!arg || *arg == '\0')
Ben Lindstrom5ed8acd2001-01-29 08:00:54 +0000362 fatal("%.200s line %d: Missing yes/no/ask argument.",
Damien Miller95def091999-11-25 00:26:21 +1100363 filename, linenum);
364 value = 0; /* To avoid compiler warning... */
Damien Miller37023962000-07-11 17:31:38 +1000365 if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100366 value = 1;
Damien Miller37023962000-07-11 17:31:38 +1000367 else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100368 value = 0;
Damien Miller37023962000-07-11 17:31:38 +1000369 else if (strcmp(arg, "ask") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100370 value = 2;
371 else
372 fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum);
373 if (*activep && *intptr == -1)
374 *intptr = value;
375 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000376
Damien Miller95def091999-11-25 00:26:21 +1100377 case oCompression:
378 intptr = &options->compression;
379 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000380
Damien Miller95def091999-11-25 00:26:21 +1100381 case oKeepAlives:
382 intptr = &options->keepalives;
383 goto parse_flag;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000384
Damien Miller95def091999-11-25 00:26:21 +1100385 case oNumberOfPasswordPrompts:
386 intptr = &options->number_of_password_prompts;
387 goto parse_int;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000388
Damien Miller95def091999-11-25 00:26:21 +1100389 case oCompressionLevel:
390 intptr = &options->compression_level;
391 goto parse_int;
392
393 case oIdentityFile:
Damien Millerbe484b52000-07-15 14:14:16 +1000394 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000395 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100396 fatal("%.200s line %d: Missing argument.", filename, linenum);
397 if (*activep) {
Damien Miller0bc1bd82000-11-13 22:57:25 +1100398 intptr = &options->num_identity_files;
Damien Millereba71ba2000-04-29 23:57:08 +1000399 if (*intptr >= SSH_MAX_IDENTITY_FILES)
Damien Miller95def091999-11-25 00:26:21 +1100400 fatal("%.200s line %d: Too many identity files specified (max %d).",
401 filename, linenum, SSH_MAX_IDENTITY_FILES);
Damien Miller0bc1bd82000-11-13 22:57:25 +1100402 charptr = &options->identity_files[*intptr];
Damien Miller37023962000-07-11 17:31:38 +1000403 *charptr = xstrdup(arg);
Damien Millereba71ba2000-04-29 23:57:08 +1000404 *intptr = *intptr + 1;
Damien Miller95def091999-11-25 00:26:21 +1100405 }
406 break;
407
Damien Millerd3a18572000-06-07 19:55:44 +1000408 case oXAuthLocation:
409 charptr=&options->xauth_location;
410 goto parse_string;
411
Damien Miller95def091999-11-25 00:26:21 +1100412 case oUser:
413 charptr = &options->user;
414parse_string:
Damien Millerbe484b52000-07-15 14:14:16 +1000415 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000416 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100417 fatal("%.200s line %d: Missing argument.", filename, linenum);
418 if (*activep && *charptr == NULL)
Damien Miller37023962000-07-11 17:31:38 +1000419 *charptr = xstrdup(arg);
Damien Miller95def091999-11-25 00:26:21 +1100420 break;
421
422 case oGlobalKnownHostsFile:
423 charptr = &options->system_hostfile;
424 goto parse_string;
425
426 case oUserKnownHostsFile:
427 charptr = &options->user_hostfile;
428 goto parse_string;
429
Damien Millereba71ba2000-04-29 23:57:08 +1000430 case oGlobalKnownHostsFile2:
431 charptr = &options->system_hostfile2;
432 goto parse_string;
433
434 case oUserKnownHostsFile2:
435 charptr = &options->user_hostfile2;
436 goto parse_string;
437
Damien Miller95def091999-11-25 00:26:21 +1100438 case oHostName:
439 charptr = &options->hostname;
440 goto parse_string;
441
Ben Lindstrom4dccfa52000-12-28 16:40:05 +0000442 case oHostKeyAlias:
443 charptr = &options->host_key_alias;
444 goto parse_string;
445
Damien Miller95def091999-11-25 00:26:21 +1100446 case oProxyCommand:
447 charptr = &options->proxy_command;
448 string = xstrdup("");
Damien Millerbe484b52000-07-15 14:14:16 +1000449 while ((arg = strdelim(&s)) != NULL && *arg != '\0') {
Damien Miller37023962000-07-11 17:31:38 +1000450 string = xrealloc(string, strlen(string) + strlen(arg) + 2);
Damien Miller95def091999-11-25 00:26:21 +1100451 strcat(string, " ");
Damien Miller37023962000-07-11 17:31:38 +1000452 strcat(string, arg);
Damien Miller95def091999-11-25 00:26:21 +1100453 }
454 if (*activep && *charptr == NULL)
455 *charptr = string;
456 else
457 xfree(string);
458 return 0;
459
460 case oPort:
461 intptr = &options->port;
462parse_int:
Damien Millerbe484b52000-07-15 14:14:16 +1000463 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000464 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100465 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000466 if (arg[0] < '0' || arg[0] > '9')
Damien Miller95def091999-11-25 00:26:21 +1100467 fatal("%.200s line %d: Bad number.", filename, linenum);
Damien Miller5428f641999-11-25 11:54:57 +1100468
469 /* Octal, decimal, or hex format? */
Damien Miller37023962000-07-11 17:31:38 +1000470 value = strtol(arg, &endofnumber, 0);
471 if (arg == endofnumber)
Damien Miller5428f641999-11-25 11:54:57 +1100472 fatal("%.200s line %d: Bad number.", filename, linenum);
Damien Miller95def091999-11-25 00:26:21 +1100473 if (*activep && *intptr == -1)
474 *intptr = value;
475 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000476
Damien Miller95def091999-11-25 00:26:21 +1100477 case oConnectionAttempts:
478 intptr = &options->connection_attempts;
479 goto parse_int;
Damien Miller5ce662a1999-11-11 17:57:39 +1100480
Damien Miller95def091999-11-25 00:26:21 +1100481 case oCipher:
482 intptr = &options->cipher;
Damien Millerbe484b52000-07-15 14:14:16 +1000483 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000484 if (!arg || *arg == '\0')
Damien Millerb1715dc2000-05-30 13:44:51 +1000485 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000486 value = cipher_number(arg);
Damien Miller95def091999-11-25 00:26:21 +1100487 if (value == -1)
488 fatal("%.200s line %d: Bad cipher '%s'.",
Damien Miller37023962000-07-11 17:31:38 +1000489 filename, linenum, arg ? arg : "<NONE>");
Damien Miller95def091999-11-25 00:26:21 +1100490 if (*activep && *intptr == -1)
491 *intptr = value;
492 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000493
Damien Miller78928792000-04-12 20:17:38 +1000494 case oCiphers:
Damien Millerbe484b52000-07-15 14:14:16 +1000495 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000496 if (!arg || *arg == '\0')
Damien Millerb1715dc2000-05-30 13:44:51 +1000497 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000498 if (!ciphers_valid(arg))
Damien Miller30c3d422000-05-09 11:02:59 +1000499 fatal("%.200s line %d: Bad SSH2 cipher spec '%s'.",
Damien Miller37023962000-07-11 17:31:38 +1000500 filename, linenum, arg ? arg : "<NONE>");
Damien Miller78928792000-04-12 20:17:38 +1000501 if (*activep && options->ciphers == NULL)
Damien Miller37023962000-07-11 17:31:38 +1000502 options->ciphers = xstrdup(arg);
Damien Miller78928792000-04-12 20:17:38 +1000503 break;
504
505 case oProtocol:
506 intptr = &options->protocol;
Damien Millerbe484b52000-07-15 14:14:16 +1000507 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000508 if (!arg || *arg == '\0')
Damien Millerb1715dc2000-05-30 13:44:51 +1000509 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000510 value = proto_spec(arg);
Damien Miller78928792000-04-12 20:17:38 +1000511 if (value == SSH_PROTO_UNKNOWN)
512 fatal("%.200s line %d: Bad protocol spec '%s'.",
Damien Miller37023962000-07-11 17:31:38 +1000513 filename, linenum, arg ? arg : "<NONE>");
Damien Miller78928792000-04-12 20:17:38 +1000514 if (*activep && *intptr == SSH_PROTO_UNKNOWN)
515 *intptr = value;
516 break;
517
Damien Miller95def091999-11-25 00:26:21 +1100518 case oLogLevel:
519 intptr = (int *) &options->log_level;
Damien Millerbe484b52000-07-15 14:14:16 +1000520 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000521 value = log_level_number(arg);
Damien Miller95def091999-11-25 00:26:21 +1100522 if (value == (LogLevel) - 1)
523 fatal("%.200s line %d: unsupported log level '%s'\n",
Damien Miller37023962000-07-11 17:31:38 +1000524 filename, linenum, arg ? arg : "<NONE>");
Damien Miller95def091999-11-25 00:26:21 +1100525 if (*activep && (LogLevel) * intptr == -1)
526 *intptr = (LogLevel) value;
527 break;
528
529 case oRemoteForward:
Damien Millerbe484b52000-07-15 14:14:16 +1000530 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000531 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100532 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000533 if (arg[0] < '0' || arg[0] > '9')
Damien Miller95def091999-11-25 00:26:21 +1100534 fatal("%.200s line %d: Badly formatted port number.",
535 filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000536 fwd_port = atoi(arg);
Damien Millerbe484b52000-07-15 14:14:16 +1000537 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000538 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100539 fatal("%.200s line %d: Missing second argument.",
540 filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000541 if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2)
Damien Miller95def091999-11-25 00:26:21 +1100542 fatal("%.200s line %d: Badly formatted host:port.",
543 filename, linenum);
544 if (*activep)
545 add_remote_forward(options, fwd_port, buf, fwd_host_port);
546 break;
547
548 case oLocalForward:
Damien Millerbe484b52000-07-15 14:14:16 +1000549 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000550 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100551 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000552 if (arg[0] < '0' || arg[0] > '9')
Damien Miller95def091999-11-25 00:26:21 +1100553 fatal("%.200s line %d: Badly formatted port number.",
554 filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000555 fwd_port = atoi(arg);
Damien Millerbe484b52000-07-15 14:14:16 +1000556 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000557 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100558 fatal("%.200s line %d: Missing second argument.",
559 filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000560 if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2)
Damien Miller95def091999-11-25 00:26:21 +1100561 fatal("%.200s line %d: Badly formatted host:port.",
562 filename, linenum);
563 if (*activep)
564 add_local_forward(options, fwd_port, buf, fwd_host_port);
565 break;
566
567 case oHost:
568 *activep = 0;
Damien Millerbe484b52000-07-15 14:14:16 +1000569 while ((arg = strdelim(&s)) != NULL && *arg != '\0')
Damien Miller37023962000-07-11 17:31:38 +1000570 if (match_pattern(host, arg)) {
571 debug("Applying options for %.100s", arg);
Damien Miller95def091999-11-25 00:26:21 +1100572 *activep = 1;
573 break;
574 }
Damien Millerbe484b52000-07-15 14:14:16 +1000575 /* Avoid garbage check below, as strdelim is done. */
Damien Miller95def091999-11-25 00:26:21 +1100576 return 0;
577
578 case oEscapeChar:
579 intptr = &options->escape_char;
Damien Millerbe484b52000-07-15 14:14:16 +1000580 arg = strdelim(&s);
Damien Miller37023962000-07-11 17:31:38 +1000581 if (!arg || *arg == '\0')
Damien Miller95def091999-11-25 00:26:21 +1100582 fatal("%.200s line %d: Missing argument.", filename, linenum);
Damien Miller37023962000-07-11 17:31:38 +1000583 if (arg[0] == '^' && arg[2] == 0 &&
Ben Lindstrom46c16222000-12-22 01:43:59 +0000584 (u_char) arg[1] >= 64 && (u_char) arg[1] < 128)
585 value = (u_char) arg[1] & 31;
Damien Miller37023962000-07-11 17:31:38 +1000586 else if (strlen(arg) == 1)
Ben Lindstrom46c16222000-12-22 01:43:59 +0000587 value = (u_char) arg[0];
Damien Miller37023962000-07-11 17:31:38 +1000588 else if (strcmp(arg, "none") == 0)
Damien Miller95def091999-11-25 00:26:21 +1100589 value = -2;
590 else {
591 fatal("%.200s line %d: Bad escape character.",
592 filename, linenum);
593 /* NOTREACHED */
594 value = 0; /* Avoid compiler warning. */
595 }
596 if (*activep && *intptr == -1)
597 *intptr = value;
598 break;
599
600 default:
601 fatal("process_config_line: Unimplemented opcode %d", opcode);
602 }
603
604 /* Check that there is no garbage at end of line. */
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000605 if ((arg = strdelim(&s)) != NULL && *arg != '\0') {
Damien Miller37023962000-07-11 17:31:38 +1000606 fatal("%.200s line %d: garbage at end of line; \"%.200s\".",
607 filename, linenum, arg);
608 }
Damien Miller95def091999-11-25 00:26:21 +1100609 return 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000610}
611
612
Damien Miller5428f641999-11-25 11:54:57 +1100613/*
614 * Reads the config file and modifies the options accordingly. Options
615 * should already be initialized before this call. This never returns if
616 * there is an error. If the file does not exist, this returns immediately.
617 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000618
Damien Miller4af51302000-04-16 11:18:38 +1000619void
Damien Miller95def091999-11-25 00:26:21 +1100620read_config_file(const char *filename, const char *host, Options *options)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000621{
Damien Miller95def091999-11-25 00:26:21 +1100622 FILE *f;
623 char line[1024];
624 int active, linenum;
625 int bad_options = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000626
Damien Miller95def091999-11-25 00:26:21 +1100627 /* Open the file. */
628 f = fopen(filename, "r");
629 if (!f)
630 return;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000631
Damien Miller95def091999-11-25 00:26:21 +1100632 debug("Reading configuration data %.200s", filename);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000633
Damien Miller5428f641999-11-25 11:54:57 +1100634 /*
635 * Mark that we are now processing the options. This flag is turned
636 * on/off by Host specifications.
637 */
Damien Miller95def091999-11-25 00:26:21 +1100638 active = 1;
639 linenum = 0;
640 while (fgets(line, sizeof(line), f)) {
641 /* Update line number counter. */
642 linenum++;
643 if (process_config_line(options, host, line, filename, linenum, &active) != 0)
644 bad_options++;
645 }
646 fclose(f);
647 if (bad_options > 0)
648 fatal("%s: terminating, %d bad configuration options\n",
649 filename, bad_options);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000650}
651
Damien Miller5428f641999-11-25 11:54:57 +1100652/*
653 * Initializes options to special values that indicate that they have not yet
654 * been set. Read_config_file will only set options with this value. Options
655 * are processed in the following order: command line, user config file,
656 * system config file. Last, fill_default_options is called.
657 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000658
Damien Miller4af51302000-04-16 11:18:38 +1000659void
Damien Miller95def091999-11-25 00:26:21 +1100660initialize_options(Options * options)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000661{
Damien Miller95def091999-11-25 00:26:21 +1100662 memset(options, 'X', sizeof(*options));
663 options->forward_agent = -1;
664 options->forward_x11 = -1;
Damien Millerd3a18572000-06-07 19:55:44 +1000665 options->xauth_location = NULL;
Damien Miller95def091999-11-25 00:26:21 +1100666 options->gateway_ports = -1;
667 options->use_privileged_port = -1;
668 options->rhosts_authentication = -1;
669 options->rsa_authentication = -1;
Damien Miller0bc1bd82000-11-13 22:57:25 +1100670 options->pubkey_authentication = -1;
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000671 options->challenge_reponse_authentication = -1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000672#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +1100673 options->kerberos_authentication = -1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000674#endif
675#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +1100676 options->kerberos_tgt_passing = -1;
677 options->afs_token_passing = -1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000678#endif
Damien Miller95def091999-11-25 00:26:21 +1100679 options->password_authentication = -1;
Damien Miller874d77b2000-10-14 16:23:11 +1100680 options->kbd_interactive_authentication = -1;
681 options->kbd_interactive_devices = NULL;
Damien Miller95def091999-11-25 00:26:21 +1100682 options->rhosts_rsa_authentication = -1;
683 options->fallback_to_rsh = -1;
684 options->use_rsh = -1;
685 options->batch_mode = -1;
686 options->check_host_ip = -1;
687 options->strict_host_key_checking = -1;
688 options->compression = -1;
689 options->keepalives = -1;
690 options->compression_level = -1;
691 options->port = -1;
692 options->connection_attempts = -1;
693 options->number_of_password_prompts = -1;
694 options->cipher = -1;
Damien Miller78928792000-04-12 20:17:38 +1000695 options->ciphers = NULL;
696 options->protocol = SSH_PROTO_UNKNOWN;
Damien Miller95def091999-11-25 00:26:21 +1100697 options->num_identity_files = 0;
698 options->hostname = NULL;
Ben Lindstrom4dccfa52000-12-28 16:40:05 +0000699 options->host_key_alias = NULL;
Damien Miller95def091999-11-25 00:26:21 +1100700 options->proxy_command = NULL;
701 options->user = NULL;
702 options->escape_char = -1;
703 options->system_hostfile = NULL;
704 options->user_hostfile = NULL;
Damien Millereba71ba2000-04-29 23:57:08 +1000705 options->system_hostfile2 = NULL;
706 options->user_hostfile2 = NULL;
Damien Miller95def091999-11-25 00:26:21 +1100707 options->num_local_forwards = 0;
708 options->num_remote_forwards = 0;
709 options->log_level = (LogLevel) - 1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000710}
711
Damien Miller5428f641999-11-25 11:54:57 +1100712/*
713 * Called after processing other sources of option data, this fills those
714 * options for which no value has been specified with their default values.
715 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000716
Damien Miller4af51302000-04-16 11:18:38 +1000717void
Damien Miller95def091999-11-25 00:26:21 +1100718fill_default_options(Options * options)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000719{
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +0000720 int len;
721
Damien Miller95def091999-11-25 00:26:21 +1100722 if (options->forward_agent == -1)
Damien Millerb1715dc2000-05-30 13:44:51 +1000723 options->forward_agent = 0;
Damien Miller95def091999-11-25 00:26:21 +1100724 if (options->forward_x11 == -1)
Damien Miller98c7ad62000-03-09 21:27:49 +1100725 options->forward_x11 = 0;
Damien Millerd3a18572000-06-07 19:55:44 +1000726#ifdef XAUTH_PATH
727 if (options->xauth_location == NULL)
728 options->xauth_location = XAUTH_PATH;
729#endif /* XAUTH_PATH */
Damien Miller95def091999-11-25 00:26:21 +1100730 if (options->gateway_ports == -1)
731 options->gateway_ports = 0;
732 if (options->use_privileged_port == -1)
733 options->use_privileged_port = 1;
734 if (options->rhosts_authentication == -1)
735 options->rhosts_authentication = 1;
736 if (options->rsa_authentication == -1)
737 options->rsa_authentication = 1;
Damien Miller0bc1bd82000-11-13 22:57:25 +1100738 if (options->pubkey_authentication == -1)
739 options->pubkey_authentication = 1;
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000740 if (options->challenge_reponse_authentication == -1)
741 options->challenge_reponse_authentication = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000742#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +1100743 if (options->kerberos_authentication == -1)
744 options->kerberos_authentication = 1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000745#endif /* KRB4 */
746#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +1100747 if (options->kerberos_tgt_passing == -1)
748 options->kerberos_tgt_passing = 1;
749 if (options->afs_token_passing == -1)
750 options->afs_token_passing = 1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000751#endif /* AFS */
Damien Miller95def091999-11-25 00:26:21 +1100752 if (options->password_authentication == -1)
753 options->password_authentication = 1;
Damien Miller874d77b2000-10-14 16:23:11 +1100754 if (options->kbd_interactive_authentication == -1)
Ben Lindstrom95fb2dd2001-01-23 03:12:10 +0000755 options->kbd_interactive_authentication = 1;
Damien Miller95def091999-11-25 00:26:21 +1100756 if (options->rhosts_rsa_authentication == -1)
757 options->rhosts_rsa_authentication = 1;
758 if (options->fallback_to_rsh == -1)
Damien Miller182ee6e2000-07-12 09:45:27 +1000759 options->fallback_to_rsh = 0;
Damien Miller95def091999-11-25 00:26:21 +1100760 if (options->use_rsh == -1)
761 options->use_rsh = 0;
762 if (options->batch_mode == -1)
763 options->batch_mode = 0;
764 if (options->check_host_ip == -1)
765 options->check_host_ip = 1;
766 if (options->strict_host_key_checking == -1)
767 options->strict_host_key_checking = 2; /* 2 is default */
768 if (options->compression == -1)
769 options->compression = 0;
770 if (options->keepalives == -1)
771 options->keepalives = 1;
772 if (options->compression_level == -1)
773 options->compression_level = 6;
774 if (options->port == -1)
775 options->port = 0; /* Filled in ssh_connect. */
776 if (options->connection_attempts == -1)
777 options->connection_attempts = 4;
778 if (options->number_of_password_prompts == -1)
779 options->number_of_password_prompts = 3;
780 /* Selected in ssh_login(). */
781 if (options->cipher == -1)
782 options->cipher = SSH_CIPHER_NOT_SET;
Damien Miller30c3d422000-05-09 11:02:59 +1000783 /* options->ciphers, default set in myproposals.h */
Damien Miller78928792000-04-12 20:17:38 +1000784 if (options->protocol == SSH_PROTO_UNKNOWN)
Damien Millereba71ba2000-04-29 23:57:08 +1000785 options->protocol = SSH_PROTO_1|SSH_PROTO_2|SSH_PROTO_1_PREFERRED;
Damien Miller95def091999-11-25 00:26:21 +1100786 if (options->num_identity_files == 0) {
Damien Miller0bc1bd82000-11-13 22:57:25 +1100787 if (options->protocol & SSH_PROTO_1) {
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +0000788 len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1;
Damien Miller0bc1bd82000-11-13 22:57:25 +1100789 options->identity_files[options->num_identity_files] =
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +0000790 xmalloc(len);
791 snprintf(options->identity_files[options->num_identity_files++],
792 len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY);
Damien Miller0bc1bd82000-11-13 22:57:25 +1100793 }
794 if (options->protocol & SSH_PROTO_2) {
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +0000795 len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1;
Damien Miller0bc1bd82000-11-13 22:57:25 +1100796 options->identity_files[options->num_identity_files] =
Ben Lindstrom4f7a64a2001-02-10 22:50:09 +0000797 xmalloc(len);
798 snprintf(options->identity_files[options->num_identity_files++],
799 len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA);
Damien Miller0bc1bd82000-11-13 22:57:25 +1100800 }
Damien Millereba71ba2000-04-29 23:57:08 +1000801 }
Damien Miller95def091999-11-25 00:26:21 +1100802 if (options->escape_char == -1)
803 options->escape_char = '~';
804 if (options->system_hostfile == NULL)
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000805 options->system_hostfile = _PATH_SSH_SYSTEM_HOSTFILE;
Damien Miller95def091999-11-25 00:26:21 +1100806 if (options->user_hostfile == NULL)
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000807 options->user_hostfile = _PATH_SSH_USER_HOSTFILE;
Damien Millereba71ba2000-04-29 23:57:08 +1000808 if (options->system_hostfile2 == NULL)
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000809 options->system_hostfile2 = _PATH_SSH_SYSTEM_HOSTFILE2;
Damien Millereba71ba2000-04-29 23:57:08 +1000810 if (options->user_hostfile2 == NULL)
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000811 options->user_hostfile2 = _PATH_SSH_USER_HOSTFILE2;
Damien Miller95def091999-11-25 00:26:21 +1100812 if (options->log_level == (LogLevel) - 1)
Ben Lindstromdb65e8f2001-01-19 04:26:52 +0000813 options->log_level = SYSLOG_LEVEL_INFO;
Damien Miller95def091999-11-25 00:26:21 +1100814 /* options->proxy_command should not be set by default */
815 /* options->user will be set in the main program if appropriate */
816 /* options->hostname will be set in the main program if appropriate */
Ben Lindstrom4dccfa52000-12-28 16:40:05 +0000817 /* options->host_key_alias should not be set by default */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000818}