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root/svn/ircd-hybrid/branches/8.2.x/src/conf_lexer.l
Revision: 4564
Committed: Sun Aug 24 10:24:47 2014 UTC (9 years, 7 months ago) by michael
File size: 19954 byte(s)
Log Message:
- Update GPL 2 license headers

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 2000-2014 ircd-hybrid development team
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19 * USA
20 */
21
22 /*! \file ircd_lexer.l
23 * \brief Scans the ircd configuration file for tokens.
24 * \version $Id$
25 */
26
27 %option case-insensitive
28 %option noyywrap
29 %option nounput
30 %option never-interactive
31
32 %{
33 #include "stdinc.h"
34 #include "irc_string.h"
35 #include "conf.h"
36 #include "conf_parser.h" /* autogenerated header file */
37 #include "log.h"
38
39 #undef YY_INPUT
40 #define YY_FATAL_ERROR(msg) conf_yy_fatal_error(msg)
41 #define YY_INPUT(buf,result,max_size) \
42 if (!(result = conf_yy_input(buf, max_size))) \
43 YY_FATAL_ERROR("input in flex scanner failed");
44 #define MAX_INCLUDE_DEPTH 10
45
46
47 unsigned int lineno = 1;
48 char linebuf[IRCD_BUFSIZE];
49 char conffilebuf[IRCD_BUFSIZE];
50
51 static int include_stack_ptr = 0;
52 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
53 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH];
54 static FILE *inc_fbfile_in[MAX_INCLUDE_DEPTH];
55 static char conffile_stack[MAX_INCLUDE_DEPTH][IRCD_BUFSIZE];
56 static void ccomment(void);
57 static void cinclude(void);
58 static int ieof(void);
59
60 static int
61 conf_yy_input(char *lbuf, unsigned int max_size)
62 {
63 return !fgets(lbuf, max_size, conf_parser_ctx.conf_file) ? 0 : strlen(lbuf);
64 }
65
66 static int
67 conf_yy_fatal_error(const char *msg)
68 {
69 return 0;
70 }
71
72 %}
73
74 WS [[:blank:]]*
75 DIGIT [[:digit:]]+
76 COMMENT ("//"|"#").*
77 qstring \"[^\"\n]*[\"\n]
78 include \.include{WS}(\<.*\>|\".*\")
79
80 %%
81 {include} { cinclude(); }
82 "/*" { ccomment(); }
83 \n.* { strlcpy(linebuf, yytext + 1, sizeof(linebuf)); ++lineno; yyless(1); }
84 {WS} ;
85 {COMMENT} ;
86 {DIGIT} { yylval.number = atoi(yytext); return NUMBER; }
87 {qstring} { if (yytext[yyleng - 2] == '\\')
88 {
89 yyless(yyleng - 1); /* Return last quote */
90 yymore(); /* Append next string */
91 }
92 else
93 {
94 yylval.string = yytext + 1;
95
96 if (yylval.string[yyleng - 2] != '"')
97 ilog(LOG_TYPE_IRCD, "Unterminated character string");
98 else
99 {
100 unsigned int i = 0, j = 0;
101
102 yylval.string[yyleng - 2] = '\0'; /* Remove close quote */
103
104 for (; yylval.string[i] != '\0'; ++i, ++j)
105 {
106 if (yylval.string[i] != '\\')
107 yylval.string[j] = yylval.string[i];
108 else
109 {
110 ++i;
111
112 if (yylval.string[i] == '\0') /* XXX: should not happen */
113 {
114 ilog(LOG_TYPE_IRCD, "Unterminated character string");
115 break;
116 }
117
118 yylval.string[j] = yylval.string[i];
119 }
120 }
121
122 yylval.string[j] = '\0';
123 return QSTRING;
124 }
125 }
126 }
127
128 accept_password { return ACCEPT_PASSWORD; }
129 admin { return ADMIN; }
130 administrator { return ADMIN; }
131 aftype { return AFTYPE; }
132 all { return T_ALL; }
133 anti_nick_flood { return ANTI_NICK_FLOOD; }
134 anti_spam_exit_message_time { return ANTI_SPAM_EXIT_MESSAGE_TIME; }
135 auth { return IRCD_AUTH; }
136 autoconn { return AUTOCONN; }
137 away_count { return AWAY_COUNT; }
138 away_time { return AWAY_TIME; }
139 bots { return T_BOTS; }
140 caller_id_wait { return CALLER_ID_WAIT; }
141 callerid { return T_CALLERID; }
142 can_flood { return CAN_FLOOD; }
143 cconn { return T_CCONN; }
144 channel { return CHANNEL; }
145 cidr_bitlen_ipv4 { return CIDR_BITLEN_IPV4; }
146 cidr_bitlen_ipv6 { return CIDR_BITLEN_IPV6; }
147 class { return CLASS; }
148 cluster { return T_CLUSTER; }
149 command { return T_COMMAND; }
150 connect { return CONNECT; }
151 connectfreq { return CONNECTFREQ; }
152 cycle_on_host_change { return CYCLE_ON_HOST_CHANGE; }
153 deaf { return T_DEAF; }
154 debug { return T_DEBUG; }
155 default_floodcount { return DEFAULT_FLOODCOUNT; }
156 default_split_server_count { return DEFAULT_SPLIT_SERVER_COUNT; }
157 default_split_user_count { return DEFAULT_SPLIT_USER_COUNT; }
158 deny { return DENY; }
159 description { return DESCRIPTION; }
160 die { return DIE; }
161 disable_auth { return DISABLE_AUTH; }
162 disable_fake_channels { return DISABLE_FAKE_CHANNELS; }
163 disable_remote_commands { return DISABLE_REMOTE_COMMANDS; }
164 dline { return T_DLINE; }
165 dots_in_ident { return DOTS_IN_IDENT; }
166 egdpool_path { return EGDPOOL_PATH; }
167 email { return EMAIL; }
168 encrypted { return ENCRYPTED; }
169 exceed_limit { return EXCEED_LIMIT; }
170 exempt { return EXEMPT; }
171 external { return T_EXTERNAL; }
172 failed_oper_notice { return FAILED_OPER_NOTICE; }
173 farconnect { return T_FARCONNECT; }
174 file { return T_FILE; }
175 flags { return IRCD_FLAGS; }
176 flatten_links { return FLATTEN_LINKS; }
177 full { return T_FULL; }
178 gecos { return GECOS; }
179 general { return GENERAL; }
180 gline { return GLINE; }
181 gline_duration { return GLINE_DURATION; }
182 gline_enable { return GLINE_ENABLE; }
183 gline_exempt { return GLINE_EXEMPT; }
184 gline_min_cidr { return GLINE_MIN_CIDR; }
185 gline_min_cidr6 { return GLINE_MIN_CIDR6; }
186 gline_request_duration { return GLINE_REQUEST_DURATION; }
187 global_kill { return GLOBAL_KILL; }
188 globops { return T_GLOBOPS; }
189 have_ident { return NEED_IDENT; }
190 havent_read_conf { return HAVENT_READ_CONF; }
191 hidden { return HIDDEN; }
192 hidden_name { return HIDDEN_NAME; }
193 hidechans { return HIDE_CHANS; }
194 hideidle { return HIDE_IDLE; }
195 hide_idle_from_opers { return HIDE_IDLE_FROM_OPERS; }
196 hide_server_ips { return HIDE_SERVER_IPS; }
197 hide_servers { return HIDE_SERVERS; }
198 hide_services { return HIDE_SERVICES; }
199 hide_spoof_ips { return HIDE_SPOOF_IPS; }
200 host { return HOST; }
201 hub { return HUB; }
202 hub_mask { return HUB_MASK; }
203 ignore_bogus_ts { return IGNORE_BOGUS_TS; }
204 invisible { return T_INVISIBLE; }
205 invisible_on_connect { return INVISIBLE_ON_CONNECT; }
206 invite_client_count { return INVITE_CLIENT_COUNT; }
207 invite_client_time { return INVITE_CLIENT_TIME; }
208 ip { return IP; }
209 ipv4 { return T_IPV4; }
210 ipv6 { return T_IPV6; }
211 join_flood_count { return JOIN_FLOOD_COUNT; }
212 join_flood_time { return JOIN_FLOOD_TIME; }
213 kill { return KILL; }
214 kill_chase_time_limit { return KILL_CHASE_TIME_LIMIT; }
215 kline { return KLINE; }
216 kline_exempt { return KLINE_EXEMPT; }
217 knock_client_count { return KNOCK_CLIENT_COUNT; }
218 knock_client_time { return KNOCK_CLIENT_TIME; }
219 knock_delay_channel { return KNOCK_DELAY_CHANNEL; }
220 leaf_mask { return LEAF_MASK; }
221 links_delay { return LINKS_DELAY; }
222 listen { return LISTEN; }
223 locops { return T_LOCOPS; }
224 log { return T_LOG; }
225 mask { return MASK; }
226 masked { return TMASKED; }
227 max_accept { return MAX_ACCEPT; }
228 max_bans { return MAX_BANS; }
229 max_channels { return MAX_CHANNELS; }
230 max_clients { return T_MAX_CLIENTS; }
231 max_global { return MAX_GLOBAL; }
232 max_ident { return MAX_IDENT; }
233 max_idle { return MAX_IDLE; }
234 max_local { return MAX_LOCAL; }
235 max_nick_changes { return MAX_NICK_CHANGES; }
236 max_nick_length { return MAX_NICK_LENGTH; }
237 max_nick_time { return MAX_NICK_TIME; }
238 max_number { return MAX_NUMBER; }
239 max_targets { return MAX_TARGETS; }
240 max_topic_length { return MAX_TOPIC_LENGTH; }
241 max_watch { return MAX_WATCH; }
242 min_idle { return MIN_IDLE; }
243 min_nonwildcard { return MIN_NONWILDCARD; }
244 min_nonwildcard_simple { return MIN_NONWILDCARD_SIMPLE; }
245 module { return MODULE; }
246 modules { return MODULES; }
247 motd { return MOTD; }
248 name { return NAME; }
249 nchange { return T_NCHANGE; }
250 need_ident { return NEED_IDENT; }
251 need_password { return NEED_PASSWORD; }
252 network_desc { return NETWORK_DESC; }
253 network_name { return NETWORK_NAME; }
254 nick { return NICK; }
255 no_create_on_split { return NO_CREATE_ON_SPLIT; }
256 no_join_on_split { return NO_JOIN_ON_SPLIT; }
257 no_oper_flood { return NO_OPER_FLOOD; }
258 no_tilde { return NO_TILDE; }
259 nononreg { return T_NONONREG; }
260 number_per_cidr { return NUMBER_PER_CIDR; }
261 number_per_ip { return NUMBER_PER_IP; }
262 oper { return OPERATOR; }
263 oper_only_umodes { return OPER_ONLY_UMODES; }
264 oper_pass_resv { return OPER_PASS_RESV; }
265 oper_umodes { return OPER_UMODES; }
266 operator { return OPERATOR; }
267 opers_bypass_callerid { return OPERS_BYPASS_CALLERID; }
268 pace_wait { return PACE_WAIT; }
269 pace_wait_simple { return PACE_WAIT_SIMPLE; }
270 passwd { return PASSWORD; }
271 password { return PASSWORD; }
272 path { return PATH; }
273 ping_cookie { return PING_COOKIE; }
274 ping_time { return PING_TIME; }
275 port { return PORT; }
276 prepend { return T_PREPEND; }
277 pseudo { return T_PSEUDO; }
278 quarantine { return RESV; }
279 random_idle { return RANDOM_IDLE; }
280 reason { return REASON; }
281 recvq { return T_RECVQ; }
282 redirport { return REDIRPORT; }
283 redirserv { return REDIRSERV; }
284 rehash { return REHASH; }
285 rej { return T_REJ; }
286 remote { return REMOTE; }
287 remoteban { return REMOTEBAN; }
288 restart { return T_RESTART; }
289 resv { return RESV; }
290 resv_exempt { return RESV_EXEMPT; }
291 rsa_private_key_file { return RSA_PRIVATE_KEY_FILE; }
292 rsa_public_key_file { return RSA_PUBLIC_KEY_FILE; }
293 send_password { return SEND_PASSWORD; }
294 sendq { return SENDQ; }
295 server { return T_SERVER; }
296 serverhide { return SERVERHIDE; }
297 serverinfo { return SERVERINFO; }
298 service { return T_SERVICE; }
299 servnotice { return T_SERVNOTICE; }
300 set { return T_SET; }
301 shared { return T_SHARED; }
302 short_motd { return SHORT_MOTD; }
303 sid { return IRCD_SID; }
304 size { return T_SIZE; }
305 skill { return T_SKILL; }
306 softcallerid { return T_SOFTCALLERID; }
307 spoof { return SPOOF; }
308 spoof_notice { return SPOOF_NOTICE; }
309 spy { return T_SPY; }
310 squit { return SQUIT; }
311 ssl { return T_SSL; }
312 ssl_certificate_file { return SSL_CERTIFICATE_FILE; }
313 ssl_certificate_fingerprint { return SSL_CERTIFICATE_FINGERPRINT; }
314 ssl_cipher_list { return T_SSL_CIPHER_LIST; }
315 ssl_connection_required { return SSL_CONNECTION_REQUIRED; }
316 ssl_dh_elliptic_curve { return SSL_DH_ELLIPTIC_CURVE; }
317 ssl_dh_param_file { return SSL_DH_PARAM_FILE; }
318 ssl_message_digest_algorithm { return SSL_MESSAGE_DIGEST_ALGORITHM; }
319 stats_e_disabled { return STATS_E_DISABLED; }
320 stats_i_oper_only { return STATS_I_OPER_ONLY; }
321 stats_k_oper_only { return STATS_K_OPER_ONLY; }
322 stats_o_oper_only { return STATS_O_OPER_ONLY; }
323 stats_P_oper_only { return STATS_P_OPER_ONLY; }
324 stats_u_oper_only { return STATS_U_OPER_ONLY; }
325 target { return T_TARGET; }
326 throttle_count { return THROTTLE_COUNT; }
327 throttle_time { return THROTTLE_TIME; }
328 tkline_expire_notices { return TKLINE_EXPIRE_NOTICES; }
329 true_no_oper_flood { return TRUE_NO_OPER_FLOOD; }
330 ts_max_delta { return TS_MAX_DELTA; }
331 ts_warn_delta { return TS_WARN_DELTA; }
332 type { return TYPE; }
333 umodes { return T_UMODES; }
334 unauth { return T_UNAUTH; }
335 undline { return T_UNDLINE; }
336 unkline { return UNKLINE; }
337 unlimited { return T_UNLIMITED; }
338 unresv { return T_UNRESV; }
339 unxline { return T_UNXLINE; }
340 use_egd { return USE_EGD; }
341 use_logging { return USE_LOGGING; }
342 user { return USER; }
343 vhost { return VHOST; }
344 vhost6 { return VHOST6; }
345 wallop { return T_WALLOP; }
346 wallops { return T_WALLOPS; }
347 warn_no_connect_block { return WARN_NO_CONNECT_BLOCK; }
348 webirc { return T_WEBIRC; }
349 xline { return XLINE; }
350
351 yes { yylval.number = 1; return TBOOL; }
352 no { yylval.number = 0; return TBOOL; }
353
354 years { return YEARS; }
355 year { return YEARS; }
356 months { return MONTHS; }
357 month { return MONTHS; }
358 weeks { return WEEKS; }
359 week { return WEEKS; }
360 days { return DAYS; }
361 day { return DAYS; }
362 hours { return HOURS; }
363 hour { return HOURS; }
364 minutes { return MINUTES; }
365 minute { return MINUTES; }
366 seconds { return SECONDS; }
367 second { return SECONDS; }
368
369 bytes { return BYTES; }
370 byte { return BYTES; }
371 kilobytes { return KBYTES; }
372 kilobyte { return KBYTES; }
373 kbytes { return KBYTES; }
374 kbyte { return KBYTES; }
375 kb { return KBYTES; }
376 megabytes { return MBYTES; }
377 megabyte { return MBYTES; }
378 mbytes { return MBYTES; }
379 mbyte { return MBYTES; }
380 mb { return MBYTES; }
381 \.\. { return TWODOTS; }
382
383 . { return yytext[0]; }
384 <<EOF>> { if (ieof()) yyterminate(); }
385
386 %%
387
388 /* C-comment ignoring routine -kre*/
389 static void
390 ccomment(void)
391 {
392 int c = 0;
393
394 /* log(L_NOTICE, "got comment"); */
395 while (1)
396 {
397 while ((c = input()) != '*' && c != EOF)
398 if (c == '\n')
399 ++lineno;
400
401 if (c == '*')
402 {
403 while ((c = input()) == '*')
404 /* Nothing */ ;
405 if (c == '/')
406 break;
407 else if (c == '\n')
408 ++lineno;
409 }
410
411 if (c == EOF)
412 {
413 YY_FATAL_ERROR("EOF in comment");
414 /* XXX hack alert this disables
415 * the stupid unused function warning
416 * gcc generates
417 */
418 if (1 == 0)
419 yy_fatal_error("EOF in comment");
420 break;
421 }
422 }
423 }
424
425 /* C-style .includes. This function will properly swap input conf buffers,
426 * and lineno -kre */
427 static void
428 cinclude(void)
429 {
430 char *p = NULL;
431
432 if ((p = strchr(yytext, '<')) == NULL)
433 *strchr(p = strchr(yytext, '"') + 1, '"') = '\0';
434 else
435 *strchr(++p, '>') = '\0';
436
437 /* log(L_NOTICE, "got include %s!", c); */
438
439 /* do stacking and co. */
440 if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
441 ilog(LOG_TYPE_IRCD, "Includes nested too deep in %s", p);
442 else
443 {
444 FILE *tmp_fbfile_in = NULL;
445 char filenamebuf[IRCD_BUFSIZE];
446
447 if (*p == '/') /* if it is an absolute path */
448 snprintf(filenamebuf, sizeof(filenamebuf), "%s", p);
449 else
450 snprintf(filenamebuf, sizeof(filenamebuf), "%s/%s", ETCPATH, p);
451
452 tmp_fbfile_in = fopen(filenamebuf, "r");
453
454 if (tmp_fbfile_in == NULL)
455 {
456 ilog(LOG_TYPE_IRCD, "Unable to read configuration file '%s': %s",
457 filenamebuf, strerror(errno));
458 return;
459 }
460
461 lineno_stack[include_stack_ptr] = lineno;
462 lineno = 1;
463 inc_fbfile_in[include_stack_ptr] = conf_parser_ctx.conf_file;
464 strlcpy(conffile_stack[include_stack_ptr], conffilebuf, IRCD_BUFSIZE);
465 include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
466 conf_parser_ctx.conf_file = tmp_fbfile_in;
467 snprintf(conffilebuf, sizeof(conffilebuf), "%s", filenamebuf);
468 yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
469 }
470 }
471
472 /* This is function that will be called on EOF in conf file. It will
473 * apropriately close conf if it not main conf and swap input buffers -kre
474 * */
475 static int
476 ieof(void)
477 {
478 /* log(L_NOTICE, "return from include stack!"); */
479 if (include_stack_ptr)
480 fclose(conf_parser_ctx.conf_file);
481 if (--include_stack_ptr < 0)
482 {
483 /* log(L_NOTICE, "terminating lexer"); */
484 /* We will now exit the lexer - restore init values if we get /rehash
485 * later and reenter lexer -kre */
486 include_stack_ptr = 0;
487 lineno = 1;
488 return 1;
489 }
490
491 /* switch buffer */
492 /* log(L_NOTICE, "deleting include_stack_ptr=%d", include_stack_ptr); */
493 yy_delete_buffer(YY_CURRENT_BUFFER);
494 lineno = lineno_stack[include_stack_ptr];
495 conf_parser_ctx.conf_file = inc_fbfile_in[include_stack_ptr];
496 strlcpy(conffilebuf, conffile_stack[include_stack_ptr], sizeof(conffilebuf));
497 yy_switch_to_buffer(include_stack[include_stack_ptr]);
498
499 return 0;
500 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision