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root/svn/ircd-hybrid/trunk/src/conf_lexer.l
Revision: 1644
Committed: Tue Nov 6 22:20:16 2012 UTC (13 years, 8 months ago) by michael
File size: 15239 byte(s)
Log Message:
- More config subsystem cleanups

File Contents

# User Rev Content
1 adx 30 /*
2     * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 michael 1309 * conf_lexer.l: Scans the ircd configuration file for tokens.
4 adx 30 *
5     * Copyright (C) 2002 by the past and present ircd coders, and others.
6     *
7     * This program is free software; you can redistribute it and/or modify
8     * it under the terms of the GNU General Public License as published by
9     * the Free Software Foundation; either version 2 of the License, or
10     * (at your option) any later version.
11     *
12     * This program is distributed in the hope that it will be useful,
13     * but WITHOUT ANY WARRANTY; without even the implied warranty of
14     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15     * GNU General Public License for more details.
16     *
17     * You should have received a copy of the GNU General Public License
18     * along with this program; if not, write to the Free Software
19     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20     * USA
21     *
22 knight 31 * $Id$
23 adx 30 */
24    
25     %option case-insensitive
26     %option noyywrap
27     %option nounput
28     %option never-interactive
29    
30     %{
31     #include "stdinc.h"
32     #include "irc_string.h"
33 michael 1309 #include "conf.h"
34     #include "conf_parser.h" /* autogenerated header file */
35 adx 30 #include "memory.h"
36     #include "hostmask.h"
37 michael 1309 #include "log.h"
38 adx 30
39     #undef YY_INPUT
40     #define YY_FATAL_ERROR(msg) conf_yy_fatal_error(msg)
41     #define YY_INPUT(buf,result,max_size) \
42 michael 1353 if (!(result = conf_yy_input(buf, max_size))) \
43 adx 30 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 michael 1325 static FILE *inc_fbfile_in[MAX_INCLUDE_DEPTH];
55 adx 30 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 michael 1353
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 adx 30 %}
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    
84 michael 1353 \n.* { strlcpy(linebuf, yytext+1, sizeof(linebuf)); ++lineno; yyless(1); }
85 adx 30
86     {WS} ;
87     {COMMENT} ;
88    
89     {DIGIT} { yylval.number = atoi(yytext); return NUMBER; }
90    
91     {qstring} { if (yytext[yyleng-2] == '\\')
92     {
93     yyless(yyleng-1); /* return last quote */
94     yymore(); /* append next string */
95     }
96     else
97     {
98     yylval.string = yytext+1;
99     if(yylval.string[yyleng-2] != '"')
100 michael 1247 ilog(LOG_TYPE_IRCD, "Unterminated character string");
101 adx 30 else
102     {
103     int i,j;
104    
105     yylval.string[yyleng-2] = '\0'; /* remove close
106     * quote
107     */
108    
109     for (j=i=0 ;yylval.string[i] != '\0'; i++,j++)
110     {
111     if (yylval.string[i] != '\\')
112     {
113     yylval.string[j] = yylval.string[i];
114     }
115     else
116     {
117     i++;
118     if (yylval.string[i] == '\0') /* XXX
119     * should not
120     * happen
121     */
122     {
123 michael 1247 ilog(LOG_TYPE_IRCD,
124 adx 30 "Unterminated character string");
125     break;
126     }
127     yylval.string[j] = yylval.string[i];
128     }
129     }
130     yylval.string[j] = '\0';
131     return QSTRING;
132     }
133     }
134     }
135    
136     accept_password { return ACCEPT_PASSWORD; }
137     admin { return ADMIN; }
138     administrator { return ADMIN; }
139     aftype { return AFTYPE; }
140     all { return T_ALL; }
141     auth { return IRCD_AUTH; }
142     autoconn { return AUTOCONN; }
143     can_flood { return CAN_FLOOD; }
144     caller_id_wait { return CALLER_ID_WAIT; }
145     opers_bypass_callerid { return OPERS_BYPASS_CALLERID; }
146     channel { return CHANNEL; }
147     cidr_bitlen_ipv4 { return CIDR_BITLEN_IPV4; }
148     cidr_bitlen_ipv6 { return CIDR_BITLEN_IPV6; }
149     class { return CLASS; }
150     cluster { return T_CLUSTER; }
151     connect { return CONNECT; }
152     connectfreq { return CONNECTFREQ; }
153     default_floodcount { return DEFAULT_FLOODCOUNT; }
154     default_split_server_count { return DEFAULT_SPLIT_SERVER_COUNT; }
155     default_split_user_count { return DEFAULT_SPLIT_USER_COUNT; }
156     deny { return DENY; }
157     description { return DESCRIPTION; }
158     die { return DIE; }
159     disable_auth { return DISABLE_AUTH; }
160 michael 632 disable_fake_channels { return DISABLE_FAKE_CHANNELS; }
161 adx 30 disable_remote_commands { return DISABLE_REMOTE_COMMANDS; }
162 michael 1250 dline { return T_DLINE; }
163 adx 30 dots_in_ident { return DOTS_IN_IDENT; }
164     egdpool_path { return EGDPOOL_PATH; }
165     email { return EMAIL; }
166     encrypted { return ENCRYPTED; }
167     exceed_limit { return EXCEED_LIMIT; }
168     exempt { return EXEMPT; }
169 michael 1247 file { return T_FILE; }
170 adx 30 flags { return IRCD_FLAGS; }
171     flatten_links { return FLATTEN_LINKS; }
172     gecos { return GECOS; }
173     general { return GENERAL; }
174     gline { return GLINE; }
175 michael 1459 gline_enable { return GLINE_ENABLE; }
176 adx 30 gline_exempt { return GLINE_EXEMPT; }
177 michael 1459 gline_duration { return GLINE_DURATION; }
178     gline_request_duration { return GLINE_REQUEST_DURATION; }
179 adx 30 gline_min_cidr { return GLINE_MIN_CIDR; }
180     gline_min_cidr6 { return GLINE_MIN_CIDR6; }
181 michael 1216 globops { return T_GLOBOPS; }
182 adx 30 global_kill { return GLOBAL_KILL; }
183     have_ident { return NEED_IDENT; }
184     need_ident { return NEED_IDENT; }
185     havent_read_conf { return HAVENT_READ_CONF; }
186     hidden { return HIDDEN; }
187     hidden_name { return HIDDEN_NAME; }
188     hide_server_ips { return HIDE_SERVER_IPS; }
189     hide_servers { return HIDE_SERVERS; }
190     hide_spoof_ips { return HIDE_SPOOF_IPS; }
191     host { return HOST; }
192     hub { return HUB; }
193     hub_mask { return HUB_MASK; }
194     ignore_bogus_ts { return IGNORE_BOGUS_TS; }
195     invisible_on_connect { return INVISIBLE_ON_CONNECT; }
196     ip { return IP; }
197     ipv4 { return T_IPV4; }
198     ipv6 { return T_IPV6; }
199     join_flood_count { return JOIN_FLOOD_COUNT; }
200     join_flood_time { return JOIN_FLOOD_TIME; }
201     kill { return KILL; }
202     kill_chase_time_limit { return KILL_CHASE_TIME_LIMIT; }
203     kline { return KLINE; }
204     kline_exempt { return KLINE_EXEMPT; }
205     leaf_mask { return LEAF_MASK; }
206     listen { return LISTEN; }
207 michael 1247 log { return T_LOG; }
208 adx 30 masked { return TMASKED; }
209     max_clients { return T_MAX_CLIENTS; }
210     max_ident { return MAX_IDENT; }
211     max_local { return MAX_LOCAL; }
212     max_global { return MAX_GLOBAL; }
213     max_number { return MAX_NUMBER; }
214 michael 876 max_watch { return MAX_WATCH; }
215 adx 30 message_locale { return MESSAGE_LOCALE; }
216     min_nonwildcard { return MIN_NONWILDCARD; }
217     min_nonwildcard_simple { return MIN_NONWILDCARD_SIMPLE; }
218     name { return NAME; }
219     need_password { return NEED_PASSWORD; }
220     network_desc { return NETWORK_DESC; }
221     network_name { return NETWORK_NAME; }
222     nick { return NICK; }
223     nick_changes { return NICK_CHANGES; }
224 michael 1243 no { yylval.number = 0; return TBOOL; }
225 adx 30 no_create_on_split { return NO_CREATE_ON_SPLIT; }
226     no_join_on_split { return NO_JOIN_ON_SPLIT; }
227     no_oper_flood { return NO_OPER_FLOOD; }
228     no_tilde { return NO_TILDE; }
229     number_per_cidr { return NUMBER_PER_CIDR; }
230     number_per_ip { return NUMBER_PER_IP; }
231     oper { return OPERATOR; }
232     oper_pass_resv { return OPER_PASS_RESV; }
233     operator { return OPERATOR; }
234     passwd { return PASSWORD; }
235     password { return PASSWORD; }
236     ping_cookie { return PING_COOKIE; }
237     ping_time { return PING_TIME; }
238     port { return PORT; }
239     quarantine { return RESV; }
240     quiet_on_ban { return QUIET_ON_BAN; }
241     reason { return REASON; }
242 michael 1516 recvq { return T_RECVQ; }
243 adx 30 redirport { return REDIRPORT; }
244     redirserv { return REDIRSERV; }
245     regex { return REGEX_T; }
246     rehash { return REHASH; }
247     remote { return REMOTE; }
248     remoteban { return REMOTEBAN; }
249 michael 1228 restart { return T_RESTART; }
250 adx 30 restrict_channels { return RESTRICT_CHANNELS; }
251     resv { return RESV; }
252     resv_exempt { return RESV_EXEMPT; }
253     rsa_private_key_file { return RSA_PRIVATE_KEY_FILE; }
254     rsa_public_key_file { return RSA_PUBLIC_KEY_FILE; }
255     ssl { return T_SSL; }
256     ssl_certificate_file { return SSL_CERTIFICATE_FILE; }
257 michael 1316 ssl_client_method { return T_SSL_CLIENT_METHOD; }
258     ssl_server_method { return T_SSL_SERVER_METHOD; }
259 michael 1306 ssl_dh_param_file { return SSL_DH_PARAM_FILE; }
260     ssl_cipher_list { return T_SSL_CIPHER_LIST; }
261 michael 967 sslv3 { return T_SSLV3; }
262     tlsv1 { return T_TLSV1; }
263 adx 30 send_password { return SEND_PASSWORD; }
264     sendq { return SENDQ; }
265 michael 900 server { return T_SERVER; }
266 adx 30 serverhide { return SERVERHIDE; }
267     serverinfo { return SERVERINFO; }
268 michael 1175 service { return T_SERVICE; }
269 michael 1176 services_name { return T_SERVICES_NAME; }
270 michael 1460 set { return T_SET; }
271 adx 30 shared { return T_SHARED; }
272     short_motd { return SHORT_MOTD; }
273     sid { return IRCD_SID; }
274 michael 1247 size { return T_SIZE; }
275 adx 30 spoof { return SPOOF; }
276     spoof_notice { return SPOOF_NOTICE; }
277     tkline_expire_notices { return TKLINE_EXPIRE_NOTICES; }
278     type { return TYPE; }
279     true_no_oper_flood { return TRUE_NO_OPER_FLOOD; }
280 michael 56 umodes { return T_UMODES; }
281 adx 30 unkline { return UNKLINE; }
282 michael 1301 undline { return T_UNDLINE; }
283 michael 1250 unlimited { return T_UNLIMITED; }
284 adx 30 use_egd { return USE_EGD; }
285     use_logging { return USE_LOGGING; }
286     throttle_time { return THROTTLE_TIME; }
287     user { return USER; }
288     vhost { return VHOST; }
289     vhost6 { return VHOST6; }
290     xline { return XLINE; }
291 michael 1243 yes { yylval.number = 1; return TBOOL; }
292 adx 30
293     failed_oper_notice { return FAILED_OPER_NOTICE; }
294     max_accept { return MAX_ACCEPT; }
295     max_nick_changes { return MAX_NICK_CHANGES; }
296 michael 1432 max_chans_per_oper { return MAX_CHANS_PER_OPER; }
297 adx 30 max_chans_per_user { return MAX_CHANS_PER_USER; }
298     max_nick_time { return MAX_NICK_TIME; }
299     anti_nick_flood { return ANTI_NICK_FLOOD; }
300     anti_spam_exit_message_time { return ANTI_SPAM_EXIT_MESSAGE_TIME; }
301     ts_max_delta { return TS_MAX_DELTA; }
302     ts_warn_delta { return TS_WARN_DELTA; }
303     links_delay { return LINKS_DELAY; }
304     warn_no_nline { return WARN_NO_NLINE; }
305    
306 michael 584 stats_e_disabled { return STATS_E_DISABLED; }
307 adx 30 stats_o_oper_only { return STATS_O_OPER_ONLY; }
308     stats_k_oper_only { return STATS_K_OPER_ONLY; }
309     stats_i_oper_only { return STATS_I_OPER_ONLY; }
310     stats_P_oper_only { return STATS_P_OPER_ONLY; }
311     pace_wait { return PACE_WAIT; }
312     pace_wait_simple { return PACE_WAIT_SIMPLE; }
313     knock_delay { return KNOCK_DELAY; }
314     knock_delay_channel { return KNOCK_DELAY_CHANNEL; }
315     max_bans { return MAX_BANS; }
316     modules { return MODULES; }
317     module { return MODULE; }
318     path { return PATH; }
319     max_targets { return MAX_TARGETS; }
320    
321     unxline { return T_UNXLINE; }
322     unresv { return T_UNRESV; }
323    
324     oper_only_umodes { return OPER_ONLY_UMODES; }
325     oper_umodes { return OPER_UMODES; }
326     bots { return T_BOTS; }
327     cconn { return T_CCONN; }
328 db 849 cconn_full { return T_CCONN_FULL; }
329 adx 30 deaf { return T_DEAF; }
330     debug { return T_DEBUG; }
331     full { return T_FULL; }
332     skill { return T_SKILL; }
333     nchange { return T_NCHANGE; }
334     rej { return T_REJ; }
335     unauth { return T_UNAUTH; }
336     spy { return T_SPY; }
337     external { return T_EXTERNAL; }
338     operwall { return T_OPERWALL; }
339     servnotice { return T_SERVNOTICE; }
340     invisible { return T_INVISIBLE; }
341     wallop { return T_WALLOP; }
342     callerid { return T_CALLERID; }
343     softcallerid { return T_SOFTCALLERID; }
344     locops { return T_LOCOPS; }
345    
346     weeks { return WEEKS; }
347     week { return WEEKS; }
348     days { return DAYS; }
349     day { return DAYS; }
350     hours { return HOURS; }
351     hour { return HOURS; }
352     minutes { return MINUTES; }
353     minute { return MINUTES; }
354     seconds { return SECONDS; }
355     second { return SECONDS; }
356    
357     bytes { return BYTES; }
358     byte { return BYTES; }
359     kilobytes { return KBYTES; }
360     kilobyte { return KBYTES; }
361     kbytes { return KBYTES; }
362     kbyte { return KBYTES; }
363     kb { return KBYTES; }
364     megabytes { return MBYTES; }
365     megabyte { return MBYTES; }
366     mbytes { return MBYTES; }
367     mbyte { return MBYTES; }
368     mb { return MBYTES; }
369     \.\. { return TWODOTS; }
370    
371     . { return yytext[0]; }
372     <<EOF>> { if (ieof()) yyterminate(); }
373    
374     %%
375    
376     /* C-comment ignoring routine -kre*/
377     static void
378     ccomment(void)
379     {
380     int c = 0;
381    
382     /* log(L_NOTICE, "got comment"); */
383     while (1)
384     {
385     while ((c = input()) != '*' && c != EOF)
386     if (c == '\n')
387     ++lineno;
388    
389     if (c == '*')
390     {
391     while ((c = input()) == '*')
392     /* Nothing */ ;
393     if (c == '/')
394     break;
395     else if (c == '\n')
396     ++lineno;
397     }
398    
399     if (c == EOF)
400     {
401     YY_FATAL_ERROR("EOF in comment");
402     /* XXX hack alert this disables
403     * the stupid unused function warning
404     * gcc generates
405     */
406     if (1 == 0)
407     yy_fatal_error("EOF in comment");
408     break;
409     }
410     }
411     }
412    
413     /* C-style .includes. This function will properly swap input conf buffers,
414     * and lineno -kre */
415     static void
416     cinclude(void)
417     {
418     char *p = NULL;
419    
420     if ((p = strchr(yytext, '<')) == NULL)
421     *strchr(p = strchr(yytext, '"') + 1, '"') = '\0';
422     else
423     *strchr(++p, '>') = '\0';
424    
425     /* log(L_NOTICE, "got include %s!", c); */
426    
427     /* do stacking and co. */
428     if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
429 michael 1247 ilog(LOG_TYPE_IRCD, "Includes nested too deep in %s", p);
430 adx 30 else
431     {
432 michael 1325 FILE *tmp_fbfile_in = NULL;
433 adx 30 char filenamebuf[IRCD_BUFSIZE];
434    
435     if (*p == '/') /* if it is an absolute path */
436     snprintf(filenamebuf, sizeof(filenamebuf), "%s", p);
437     else
438     snprintf(filenamebuf, sizeof(filenamebuf), "%s/%s", ETCPATH, p);
439    
440 michael 1325 tmp_fbfile_in = fopen(filenamebuf, "r");
441 adx 30
442     if (tmp_fbfile_in == NULL)
443     {
444 michael 1247 ilog(LOG_TYPE_IRCD, "Unable to read configuration file '%s': %s",
445 adx 30 filenamebuf, strerror(errno));
446     return;
447     }
448    
449     lineno_stack[include_stack_ptr] = lineno;
450     lineno = 1;
451 michael 967 inc_fbfile_in[include_stack_ptr] = conf_parser_ctx.conf_file;
452 adx 30 strlcpy(conffile_stack[include_stack_ptr], conffilebuf, IRCD_BUFSIZE);
453     include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
454 michael 967 conf_parser_ctx.conf_file = tmp_fbfile_in;
455 michael 711 snprintf(conffilebuf, sizeof(conffilebuf), "%s", filenamebuf);
456 adx 30 yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
457     }
458     }
459    
460     /* This is function that will be called on EOF in conf file. It will
461     * apropriately close conf if it not main conf and swap input buffers -kre
462     * */
463     static int
464     ieof(void)
465     {
466     /* log(L_NOTICE, "return from include stack!"); */
467     if (include_stack_ptr)
468 michael 1325 fclose(conf_parser_ctx.conf_file);
469 adx 30 if (--include_stack_ptr < 0)
470     {
471     /* log(L_NOTICE, "terminating lexer"); */
472     /* We will now exit the lexer - restore init values if we get /rehash
473     * later and reenter lexer -kre */
474     include_stack_ptr = 0;
475     lineno = 1;
476     return 1;
477     }
478    
479     /* switch buffer */
480     /* log(L_NOTICE, "deleting include_stack_ptr=%d", include_stack_ptr); */
481     yy_delete_buffer(YY_CURRENT_BUFFER);
482     lineno = lineno_stack[include_stack_ptr];
483 michael 967 conf_parser_ctx.conf_file = inc_fbfile_in[include_stack_ptr];
484 adx 30 strlcpy(conffilebuf, conffile_stack[include_stack_ptr], sizeof(conffilebuf));
485     yy_switch_to_buffer(include_stack[include_stack_ptr]);
486    
487     return 0;
488     }

Properties

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