Annotation of src/usr.bin/ssh/readconf.c, Revision 1.13
1.1 deraadt 1: /*
2:
3: readconf.c
4:
5: Author: Tatu Ylonen <ylo@cs.hut.fi>
6:
7: Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8: All rights reserved
9:
10: Created: Sat Apr 22 00:03:10 1995 ylo
11:
12: Functions for reading the configuration files.
13:
14: */
15:
16: #include "includes.h"
1.13 ! markus 17: RCSID("$Id: readconf.c,v 1.12 1999/10/15 21:39:02 markus Exp $");
1.1 deraadt 18:
19: #include "ssh.h"
20: #include "cipher.h"
21: #include "readconf.h"
22: #include "xmalloc.h"
23:
24: /* Format of the configuration file:
25:
26: # Configuration data is parsed as follows:
27: # 1. command line options
28: # 2. user-specific file
29: # 3. system-wide file
30: # Any configuration value is only changed the first time it is set.
31: # Thus, host-specific definitions should be at the beginning of the
32: # configuration file, and defaults at the end.
33:
34: # Host-specific declarations. These may override anything above. A single
35: # host may match multiple declarations; these are processed in the order
36: # that they are given in.
37:
38: Host *.ngs.fi ngs.fi
39: FallBackToRsh no
40:
41: Host fake.com
42: HostName another.host.name.real.org
43: User blaah
44: Port 34289
45: ForwardX11 no
46: ForwardAgent no
47:
48: Host books.com
49: RemoteForward 9999 shadows.cs.hut.fi:9999
50: Cipher 3des
51:
52: Host fascist.blob.com
53: Port 23123
54: User tylonen
55: RhostsAuthentication no
56: PasswordAuthentication no
57:
58: Host puukko.hut.fi
59: User t35124p
60: ProxyCommand ssh-proxy %h %p
61:
62: Host *.fr
63: UseRsh yes
64:
65: Host *.su
66: Cipher none
67: PasswordAuthentication no
68:
69: # Defaults for various options
70: Host *
71: ForwardAgent no
72: ForwardX11 yes
73: RhostsAuthentication yes
74: PasswordAuthentication yes
75: RSAAuthentication yes
76: RhostsRSAAuthentication yes
77: FallBackToRsh no
78: UseRsh no
79: StrictHostKeyChecking yes
80: KeepAlives no
81: IdentityFile ~/.ssh/identity
82: Port 22
83: EscapeChar ~
84:
85: */
86:
87: /* Keyword tokens. */
88:
89: typedef enum
90: {
1.3 deraadt 91: oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication,
1.1 deraadt 92: oPasswordAuthentication, oRSAAuthentication, oFallBackToRsh, oUseRsh,
93: #ifdef KRB4
94: oKerberosAuthentication,
95: #endif /* KRB4 */
96: #ifdef AFS
1.5 dugsong 97: oKerberosTgtPassing, oAFSTokenPassing,
1.1 deraadt 98: #endif
99: oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward,
100: oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand,
101: oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts,
1.8 provos 102: oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression,
1.11 markus 103: oCompressionLevel, oKeepAlives, oNumberOfPasswordPrompts, oTISAuthentication,
1.13 ! markus 104: oUsePrivilegedPort, oLogLevel
1.1 deraadt 105: } OpCodes;
106:
107: /* Textual representations of the tokens. */
108:
109: static struct
110: {
111: const char *name;
112: OpCodes opcode;
113: } keywords[] =
114: {
115: { "forwardagent", oForwardAgent },
116: { "forwardx11", oForwardX11 },
1.3 deraadt 117: { "gatewayports", oGatewayPorts },
1.12 markus 118: { "useprivilegedport", oUsePrivilegedPort },
1.1 deraadt 119: { "rhostsauthentication", oRhostsAuthentication },
120: { "passwordauthentication", oPasswordAuthentication },
121: { "rsaauthentication", oRSAAuthentication },
122: #ifdef KRB4
123: { "kerberosauthentication", oKerberosAuthentication },
124: #endif /* KRB4 */
1.5 dugsong 125: #ifdef AFS
1.1 deraadt 126: { "kerberostgtpassing", oKerberosTgtPassing },
127: { "afstokenpassing", oAFSTokenPassing },
128: #endif
129: { "fallbacktorsh", oFallBackToRsh },
130: { "usersh", oUseRsh },
131: { "identityfile", oIdentityFile },
132: { "hostname", oHostName },
133: { "proxycommand", oProxyCommand },
134: { "port", oPort },
135: { "cipher", oCipher },
136: { "remoteforward", oRemoteForward },
137: { "localforward", oLocalForward },
138: { "user", oUser },
139: { "host", oHost },
140: { "escapechar", oEscapeChar },
141: { "rhostsrsaauthentication", oRhostsRSAAuthentication },
142: { "globalknownhostsfile", oGlobalKnownHostsFile },
143: { "userknownhostsfile", oUserKnownHostsFile },
144: { "connectionattempts", oConnectionAttempts },
145: { "batchmode", oBatchMode },
1.8 provos 146: { "checkhostip", oCheckHostIP },
1.1 deraadt 147: { "stricthostkeychecking", oStrictHostKeyChecking },
148: { "compression", oCompression },
149: { "compressionlevel", oCompressionLevel },
150: { "keepalive", oKeepAlives },
1.10 dugsong 151: { "numberofpasswordprompts", oNumberOfPasswordPrompts },
1.1 deraadt 152: { "tisauthentication", oTISAuthentication },
1.13 ! markus 153: { "loglevel", oLogLevel },
! 154: { NULL, 0 }
! 155: };
! 156:
! 157: /* textual representation of log-levels */
! 158:
! 159: static struct
! 160: {
! 161: const char *name;
! 162: LogLevel level;
! 163: } log_levels[] =
! 164: {
! 165: { "QUIET", SYSLOG_LEVEL_QUIET },
! 166: { "FATAL", SYSLOG_LEVEL_FATAL },
! 167: { "ERROR", SYSLOG_LEVEL_ERROR },
! 168: { "INFO", SYSLOG_LEVEL_INFO },
! 169: { "CHAT", SYSLOG_LEVEL_CHAT },
! 170: { "DEBUG", SYSLOG_LEVEL_DEBUG },
1.1 deraadt 171: { NULL, 0 }
172: };
173:
174: /* Characters considered whitespace in strtok calls. */
175: #define WHITESPACE " \t\r\n"
176:
177:
178: /* Adds a local TCP/IP port forward to options. Never returns if there
179: is an error. */
180:
181: void add_local_forward(Options *options, int port, const char *host,
182: int host_port)
183: {
184: Forward *fwd;
1.4 deraadt 185: extern uid_t original_real_uid;
186: if ((port & 0xffff) != port)
187: fatal("Requested forwarding of nonexistent port %d.", port);
1.7 deraadt 188: if (port < IPPORT_RESERVED && original_real_uid != 0)
1.4 deraadt 189: fatal("Privileged ports can only be forwarded by root.\n");
1.1 deraadt 190: if (options->num_local_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION)
191: fatal("Too many local forwards (max %d).", SSH_MAX_FORWARDS_PER_DIRECTION);
192: fwd = &options->local_forwards[options->num_local_forwards++];
193: fwd->port = port;
194: fwd->host = xstrdup(host);
195: fwd->host_port = host_port;
196: }
197:
198: /* Adds a remote TCP/IP port forward to options. Never returns if there
199: is an error. */
200:
201: void add_remote_forward(Options *options, int port, const char *host,
202: int host_port)
203: {
204: Forward *fwd;
205: if (options->num_remote_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION)
206: fatal("Too many remote forwards (max %d).",
207: SSH_MAX_FORWARDS_PER_DIRECTION);
208: fwd = &options->remote_forwards[options->num_remote_forwards++];
209: fwd->port = port;
210: fwd->host = xstrdup(host);
211: fwd->host_port = host_port;
212: }
213:
214: /* Returns the number of the token pointed to by cp of length len.
215: Never returns if the token is not known. */
216:
217: static OpCodes parse_token(const char *cp, const char *filename, int linenum)
218: {
219: unsigned int i;
220:
221: for (i = 0; keywords[i].name; i++)
222: if (strcmp(cp, keywords[i].name) == 0)
223: return keywords[i].opcode;
224:
225: fatal("%.200s line %d: Bad configuration option.",
226: filename, linenum);
227: /*NOTREACHED*/
228: return 0;
229: }
230:
231: /* Processes a single option line as used in the configuration files.
232: This only sets those values that have not already been set. */
233:
234: void process_config_line(Options *options, const char *host,
235: char *line, const char *filename, int linenum,
236: int *activep)
237: {
238: char buf[256], *cp, *string, **charptr;
1.13 ! markus 239: int opcode, *intptr, value, fwd_port, fwd_host_port, i;
1.1 deraadt 240:
241: /* Skip leading whitespace. */
242: cp = line + strspn(line, WHITESPACE);
243: if (!*cp || *cp == '\n' || *cp == '#')
244: return;
245:
246: /* Get the keyword. (Each line is supposed to begin with a keyword). */
247: cp = strtok(cp, WHITESPACE);
248: {
249: char *t = cp;
250: for (; *t != 0; t++)
251: if ('A' <= *t && *t <= 'Z')
252: *t = *t - 'A' + 'a'; /* tolower */
253:
254: }
255: opcode = parse_token(cp, filename, linenum);
256:
257: switch (opcode)
258: {
259:
260: case oForwardAgent:
261: intptr = &options->forward_agent;
262: parse_flag:
263: cp = strtok(NULL, WHITESPACE);
264: if (!cp)
265: fatal("%.200s line %d: Missing yes/no argument.", filename, linenum);
266: value = 0; /* To avoid compiler warning... */
267: if (strcmp(cp, "yes") == 0 || strcmp(cp, "true") == 0)
268: value = 1;
269: else if (strcmp(cp, "no") == 0 || strcmp(cp, "false") == 0)
270: value = 0;
271: else
272: fatal("%.200s line %d: Bad yes/no argument.", filename, linenum);
273: if (*activep && *intptr == -1)
274: *intptr = value;
275: break;
276:
277: case oForwardX11:
278: intptr = &options->forward_x11;
279: goto parse_flag;
1.3 deraadt 280:
281: case oGatewayPorts:
282: intptr = &options->gateway_ports;
283: goto parse_flag;
1.1 deraadt 284:
1.11 markus 285: case oUsePrivilegedPort:
286: intptr = &options->use_privileged_port;
287: goto parse_flag;
288:
1.1 deraadt 289: case oRhostsAuthentication:
290: intptr = &options->rhosts_authentication;
291: goto parse_flag;
292:
293: case oPasswordAuthentication:
294: intptr = &options->password_authentication;
295: goto parse_flag;
296:
297: case oRSAAuthentication:
298: intptr = &options->rsa_authentication;
299: goto parse_flag;
300:
301: case oRhostsRSAAuthentication:
302: intptr = &options->rhosts_rsa_authentication;
303: goto parse_flag;
304:
305: #ifdef KRB4
306: case oKerberosAuthentication:
307: intptr = &options->kerberos_authentication;
308: goto parse_flag;
309: #endif /* KRB4 */
310:
1.5 dugsong 311: #ifdef AFS
1.1 deraadt 312: case oKerberosTgtPassing:
313: intptr = &options->kerberos_tgt_passing;
314: goto parse_flag;
315:
316: case oAFSTokenPassing:
317: intptr = &options->afs_token_passing;
318: goto parse_flag;
319: #endif
320:
321: case oFallBackToRsh:
322: intptr = &options->fallback_to_rsh;
323: goto parse_flag;
324:
325: case oUseRsh:
326: intptr = &options->use_rsh;
327: goto parse_flag;
328:
329: case oBatchMode:
330: intptr = &options->batch_mode;
1.9 provos 331: goto parse_flag;
332:
333: case oCheckHostIP:
334: intptr = &options->check_host_ip;
1.1 deraadt 335: goto parse_flag;
336:
337: case oStrictHostKeyChecking:
338: intptr = &options->strict_host_key_checking;
339: cp = strtok(NULL, WHITESPACE);
340: if (!cp)
341: fatal("%.200s line %d: Missing yes/no argument.",
342: filename, linenum);
343: value = 0; /* To avoid compiler warning... */
344: if (strcmp(cp, "yes") == 0 || strcmp(cp, "true") == 0)
345: value = 1;
346: else if (strcmp(cp, "no") == 0 || strcmp(cp, "false") == 0)
347: value = 0;
348: else if (strcmp(cp, "ask") == 0)
349: value = 2;
350: else
351: fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum);
352: if (*activep && *intptr == -1)
353: *intptr = value;
354: break;
355:
356: case oCompression:
357: intptr = &options->compression;
358: goto parse_flag;
359:
360: case oKeepAlives:
361: intptr = &options->keepalives;
362: goto parse_flag;
363:
1.10 dugsong 364: case oNumberOfPasswordPrompts:
365: intptr = &options->number_of_password_prompts;
366: goto parse_int;
367:
1.1 deraadt 368: case oTISAuthentication:
369: cp = strtok(NULL, WHITESPACE);
370: if (cp != 0 && (strcmp(cp, "yes") == 0 || strcmp(cp, "true") == 0))
371: fprintf(stderr,
372: "%.99s line %d: Warning, TIS is not supported.\n",
373: filename,
374: linenum);
375: break;
376:
377: case oCompressionLevel:
378: intptr = &options->compression_level;
379: goto parse_int;
380:
381: case oIdentityFile:
382: cp = strtok(NULL, WHITESPACE);
383: if (!cp)
384: fatal("%.200s line %d: Missing argument.", filename, linenum);
385: if (*activep)
386: {
387: if (options->num_identity_files >= SSH_MAX_IDENTITY_FILES)
388: fatal("%.200s line %d: Too many identity files specified (max %d).",
389: filename, linenum, SSH_MAX_IDENTITY_FILES);
390: options->identity_files[options->num_identity_files++] = xstrdup(cp);
391: }
392: break;
393:
394: case oUser:
395: charptr = &options->user;
396: parse_string:
397: cp = strtok(NULL, WHITESPACE);
398: if (!cp)
399: fatal("%.200s line %d: Missing argument.", filename, linenum);
400: if (*activep && *charptr == NULL)
401: *charptr = xstrdup(cp);
402: break;
403:
404: case oGlobalKnownHostsFile:
405: charptr = &options->system_hostfile;
406: goto parse_string;
407:
408: case oUserKnownHostsFile:
409: charptr = &options->user_hostfile;
410: goto parse_string;
411:
412: case oHostName:
413: charptr = &options->hostname;
414: goto parse_string;
415:
416: case oProxyCommand:
417: charptr = &options->proxy_command;
418: string = xstrdup("");
419: while ((cp = strtok(NULL, WHITESPACE)) != NULL)
420: {
421: string = xrealloc(string, strlen(string) + strlen(cp) + 2);
422: strcat(string, " ");
423: strcat(string, cp);
424: }
425: if (*activep && *charptr == NULL)
426: *charptr = string;
427: else
428: xfree(string);
429: return;
430:
431: case oPort:
432: intptr = &options->port;
433: parse_int:
434: cp = strtok(NULL, WHITESPACE);
435: if (!cp)
436: fatal("%.200s line %d: Missing argument.", filename, linenum);
437: if (cp[0] < '0' || cp[0] > '9')
438: fatal("%.200s line %d: Bad number.", filename, linenum);
439: #if 0
440: value = atoi(cp);
441: #else
442: {
443: char *ptr;
444: value = strtol(cp, &ptr, 0); /* Octal, decimal, or hex format? */
445: if (cp == ptr)
446: fatal("%.200s line %d: Bad number.", filename, linenum);
447: }
448: #endif
449: if (*activep && *intptr == -1)
450: *intptr = value;
451: break;
452:
453: case oConnectionAttempts:
454: intptr = &options->connection_attempts;
455: goto parse_int;
456:
457: case oCipher:
458: intptr = &options->cipher;
459: cp = strtok(NULL, WHITESPACE);
460: value = cipher_number(cp);
461: if (value == -1)
462: fatal("%.200s line %d: Bad cipher.", filename, linenum);
463: if (*activep && *intptr == -1)
464: *intptr = value;
465: break;
1.13 ! markus 466:
! 467: case oLogLevel:
! 468: cp = strtok(NULL, WHITESPACE);
! 469: if (!cp)
! 470: {
! 471: fprintf(stderr, "%s line %d: missing level name.\n",
! 472: filename, linenum);
! 473: exit(1);
! 474: }
! 475: for (i = 0; log_levels[i].name; i++)
! 476: if (strcasecmp(log_levels[i].name, cp) == 0)
! 477: break;
! 478: if (!log_levels[i].name)
! 479: {
! 480: fprintf(stderr, "%s line %d: unsupported log level %s\n",
! 481: filename, linenum, cp);
! 482: exit(1);
! 483: }
! 484: if (options->log_level == (LogLevel)(-1))
! 485: options->log_level = log_levels[i].level;
! 486: break;
1.1 deraadt 487:
488: case oRemoteForward:
489: cp = strtok(NULL, WHITESPACE);
490: if (!cp)
491: fatal("%.200s line %d: Missing argument.", filename, linenum);
492: if (cp[0] < '0' || cp[0] > '9')
493: fatal("%.200s line %d: Badly formatted port number.",
494: filename, linenum);
495: fwd_port = atoi(cp);
496: cp = strtok(NULL, WHITESPACE);
497: if (!cp)
498: fatal("%.200s line %d: Missing second argument.",
499: filename, linenum);
500: if (sscanf(cp, "%255[^:]:%d", buf, &fwd_host_port) != 2)
501: fatal("%.200s line %d: Badly formatted host:port.",
502: filename, linenum);
503: if (*activep)
504: add_remote_forward(options, fwd_port, buf, fwd_host_port);
505: break;
506:
507: case oLocalForward:
508: cp = strtok(NULL, WHITESPACE);
509: if (!cp)
510: fatal("%.200s line %d: Missing argument.", filename, linenum);
511: if (cp[0] < '0' || cp[0] > '9')
512: fatal("%.200s line %d: Badly formatted port number.",
513: filename, linenum);
514: fwd_port = atoi(cp);
515: cp = strtok(NULL, WHITESPACE);
516: if (!cp)
517: fatal("%.200s line %d: Missing second argument.",
518: filename, linenum);
519: if (sscanf(cp, "%255[^:]:%d", buf, &fwd_host_port) != 2)
520: fatal("%.200s line %d: Badly formatted host:port.",
521: filename, linenum);
522: if (*activep)
523: add_local_forward(options, fwd_port, buf, fwd_host_port);
524: break;
525:
526: case oHost:
527: *activep = 0;
528: while ((cp = strtok(NULL, WHITESPACE)) != NULL)
529: if (match_pattern(host, cp))
530: {
531: debug("Applying options for %.100s", cp);
532: *activep = 1;
533: break;
534: }
535: /* Avoid garbage check below, as strtok already returned NULL. */
536: return;
537:
538: case oEscapeChar:
539: intptr = &options->escape_char;
540: cp = strtok(NULL, WHITESPACE);
541: if (!cp)
542: fatal("%.200s line %d: Missing argument.", filename, linenum);
543: if (cp[0] == '^' && cp[2] == 0 &&
544: (unsigned char)cp[1] >= 64 && (unsigned char)cp[1] < 128)
545: value = (unsigned char)cp[1] & 31;
546: else
547: if (strlen(cp) == 1)
548: value = (unsigned char)cp[0];
549: else
550: if (strcmp(cp, "none") == 0)
551: value = -2;
552: else
553: {
554: fatal("%.200s line %d: Bad escape character.",
555: filename, linenum);
556: /*NOTREACHED*/
557: value = 0; /* Avoid compiler warning. */
558: }
559: if (*activep && *intptr == -1)
560: *intptr = value;
561: break;
562:
563: default:
564: fatal("parse_config_file: Unimplemented opcode %d", opcode);
565: }
566:
567: /* Check that there is no garbage at end of line. */
568: if (strtok(NULL, WHITESPACE) != NULL)
569: fatal("%.200s line %d: garbage at end of line.",
570: filename, linenum);
571: }
572:
573:
574: /* Reads the config file and modifies the options accordingly. Options should
575: already be initialized before this call. This never returns if there
576: is an error. If the file does not exist, this returns immediately. */
577:
578: void read_config_file(const char *filename, const char *host, Options *options)
579: {
580: FILE *f;
581: char line[1024];
582: int active, linenum;
583:
584: /* Open the file. */
585: f = fopen(filename, "r");
586: if (!f)
587: return;
588:
589: debug("Reading configuration data %.200s", filename);
590:
591: /* Mark that we are now processing the options. This flag is turned on/off
592: by Host specifications. */
593: active = 1;
594: linenum = 0;
595: while (fgets(line, sizeof(line), f))
596: {
597: /* Update line number counter. */
598: linenum++;
599:
600: process_config_line(options, host, line, filename, linenum, &active);
601: }
602: fclose(f);
603: }
604:
605: /* Initializes options to special values that indicate that they have not
606: yet been set. Read_config_file will only set options with this value.
607: Options are processed in the following order: command line, user config
608: file, system config file. Last, fill_default_options is called. */
609:
610: void initialize_options(Options *options)
611: {
612: memset(options, 'X', sizeof(*options));
613: options->forward_agent = -1;
614: options->forward_x11 = -1;
1.3 deraadt 615: options->gateway_ports = -1;
1.11 markus 616: options->use_privileged_port = -1;
1.1 deraadt 617: options->rhosts_authentication = -1;
618: options->rsa_authentication = -1;
619: #ifdef KRB4
620: options->kerberos_authentication = -1;
621: #endif
1.5 dugsong 622: #ifdef AFS
1.1 deraadt 623: options->kerberos_tgt_passing = -1;
624: options->afs_token_passing = -1;
625: #endif
626: options->password_authentication = -1;
627: options->rhosts_rsa_authentication = -1;
628: options->fallback_to_rsh = -1;
629: options->use_rsh = -1;
630: options->batch_mode = -1;
1.8 provos 631: options->check_host_ip = -1;
1.1 deraadt 632: options->strict_host_key_checking = -1;
633: options->compression = -1;
634: options->keepalives = -1;
635: options->compression_level = -1;
636: options->port = -1;
637: options->connection_attempts = -1;
1.10 dugsong 638: options->number_of_password_prompts = -1;
1.1 deraadt 639: options->cipher = -1;
640: options->num_identity_files = 0;
641: options->hostname = NULL;
642: options->proxy_command = NULL;
643: options->user = NULL;
644: options->escape_char = -1;
645: options->system_hostfile = NULL;
646: options->user_hostfile = NULL;
647: options->num_local_forwards = 0;
648: options->num_remote_forwards = 0;
1.13 ! markus 649: options->log_level = (LogLevel)-1;
1.1 deraadt 650: }
651:
652: /* Called after processing other sources of option data, this fills those
653: options for which no value has been specified with their default values. */
654:
655: void fill_default_options(Options *options)
656: {
657: if (options->forward_agent == -1)
658: options->forward_agent = 1;
659: if (options->forward_x11 == -1)
660: options->forward_x11 = 1;
1.3 deraadt 661: if (options->gateway_ports == -1)
662: options->gateway_ports = 0;
1.11 markus 663: if (options->use_privileged_port == -1)
664: options->use_privileged_port = 1;
1.1 deraadt 665: if (options->rhosts_authentication == -1)
666: options->rhosts_authentication = 1;
667: if (options->rsa_authentication == -1)
668: options->rsa_authentication = 1;
669: #ifdef KRB4
670: if (options->kerberos_authentication == -1)
671: options->kerberos_authentication = 1;
1.5 dugsong 672: #endif /* KRB4 */
673: #ifdef AFS
1.1 deraadt 674: if (options->kerberos_tgt_passing == -1)
675: options->kerberos_tgt_passing = 1;
676: if (options->afs_token_passing == -1)
677: options->afs_token_passing = 1;
1.5 dugsong 678: #endif /* AFS */
1.1 deraadt 679: if (options->password_authentication == -1)
680: options->password_authentication = 1;
681: if (options->rhosts_rsa_authentication == -1)
682: options->rhosts_rsa_authentication = 1;
683: if (options->fallback_to_rsh == -1)
684: options->fallback_to_rsh = 1;
685: if (options->use_rsh == -1)
686: options->use_rsh = 0;
687: if (options->batch_mode == -1)
688: options->batch_mode = 0;
1.8 provos 689: if (options->check_host_ip == -1)
690: options->check_host_ip = 1;
1.1 deraadt 691: if (options->strict_host_key_checking == -1)
692: options->strict_host_key_checking = 2; /* 2 is default */
693: if (options->compression == -1)
694: options->compression = 0;
695: if (options->keepalives == -1)
696: options->keepalives = 1;
697: if (options->compression_level == -1)
698: options->compression_level = 6;
699: if (options->port == -1)
700: options->port = 0; /* Filled in ssh_connect. */
701: if (options->connection_attempts == -1)
702: options->connection_attempts = 4;
1.10 dugsong 703: if (options->number_of_password_prompts == -1)
704: options->number_of_password_prompts = 3;
1.1 deraadt 705: if (options->cipher == -1)
706: options->cipher = SSH_CIPHER_NOT_SET; /* Selected in ssh_login(). */
707: if (options->num_identity_files == 0)
708: {
709: options->identity_files[0] =
710: xmalloc(2 + strlen(SSH_CLIENT_IDENTITY) + 1);
711: sprintf(options->identity_files[0], "~/%.100s", SSH_CLIENT_IDENTITY);
712: options->num_identity_files = 1;
713: }
714: if (options->escape_char == -1)
715: options->escape_char = '~';
716: if (options->system_hostfile == NULL)
717: options->system_hostfile = SSH_SYSTEM_HOSTFILE;
718: if (options->user_hostfile == NULL)
719: options->user_hostfile = SSH_USER_HOSTFILE;
1.13 ! markus 720: if (options->log_level == (LogLevel)-1)
! 721: options->log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 722: /* options->proxy_command should not be set by default */
723: /* options->user will be set in the main program if appropriate */
724: /* options->hostname will be set in the main program if appropriate */
725: }
726:
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