| 1 |
/* Definitions of IRC message functions and list of messages. |
| 2 |
* |
| 3 |
* IRC Services is copyright (c) 1996-2009 Andrew Church. |
| 4 |
* E-mail: <achurch@achurch.org> |
| 5 |
* Parts written by Andrew Kempe and others. |
| 6 |
* This program is free but copyrighted software; see the file GPL.txt for |
| 7 |
* details. |
| 8 |
*/ |
| 9 |
|
| 10 |
#include "services.h" |
| 11 |
#include "messages.h" |
| 12 |
#include "language.h" |
| 13 |
#include "modules.h" |
| 14 |
#include "version.h" |
| 15 |
#include "modules/operserv/operserv.h" |
| 16 |
|
| 17 |
/*************************************************************************/ |
| 18 |
|
| 19 |
/* Enable ignore code for PRIVMSGs? */ |
| 20 |
int allow_ignore = 1; |
| 21 |
|
| 22 |
/* Callbacks for various messages */ |
| 23 |
static int cb_privmsg = -1; |
| 24 |
static int cb_whois = -1; |
| 25 |
|
| 26 |
/*************************************************************************/ |
| 27 |
/************************ Basic message handling *************************/ |
| 28 |
/*************************************************************************/ |
| 29 |
|
| 30 |
static void |
| 31 |
m_nickcoll(char *source, int ac, char **av) |
| 32 |
{ |
| 33 |
if (ac < 1) |
| 34 |
return; |
| 35 |
if (!readonly) |
| 36 |
introduce_user(av[0]); |
| 37 |
} |
| 38 |
|
| 39 |
/*************************************************************************/ |
| 40 |
|
| 41 |
static void |
| 42 |
m_ping(char *source, int ac, char **av) |
| 43 |
{ |
| 44 |
if (ac < 1) |
| 45 |
return; |
| 46 |
send_cmd(ServerName, "PONG %s %s", ac > 1 ? av[1] : ServerName, av[0]); |
| 47 |
} |
| 48 |
|
| 49 |
/*************************************************************************/ |
| 50 |
|
| 51 |
static void |
| 52 |
m_info(char *source, int ac, char **av) |
| 53 |
{ |
| 54 |
int i; |
| 55 |
struct tm *tm; |
| 56 |
char timebuf[64]; |
| 57 |
|
| 58 |
if (!*source) |
| 59 |
{ |
| 60 |
log("Source missing from INFO message"); |
| 61 |
return; |
| 62 |
} |
| 63 |
|
| 64 |
tm = localtime(&start_time); |
| 65 |
strftime(timebuf, sizeof(timebuf), "%a %b %d %H:%M:%S %Y %Z", tm); |
| 66 |
|
| 67 |
for (i = 0; info_text[i]; i++) |
| 68 |
send_cmd(ServerName, "371 %s :%s", source, info_text[i]); |
| 69 |
send_cmd(ServerName, "371 %s :Version %s (%s)", source, |
| 70 |
version_number, version_build); |
| 71 |
send_cmd(ServerName, "371 %s :On-line since %s", source, timebuf); |
| 72 |
send_cmd(ServerName, "374 %s :End of /INFO list.", source); |
| 73 |
} |
| 74 |
|
| 75 |
/*************************************************************************/ |
| 76 |
|
| 77 |
static void |
| 78 |
m_join(char *source, int ac, char **av) |
| 79 |
{ |
| 80 |
if (!*source) |
| 81 |
{ |
| 82 |
log("Source missing from JOIN message"); |
| 83 |
return; |
| 84 |
} |
| 85 |
else if (ac < 1) |
| 86 |
{ |
| 87 |
return; |
| 88 |
} |
| 89 |
do_join(source, ac, av); |
| 90 |
} |
| 91 |
|
| 92 |
/*************************************************************************/ |
| 93 |
|
| 94 |
static void |
| 95 |
m_kick(char *source, int ac, char **av) |
| 96 |
{ |
| 97 |
if (!*source) |
| 98 |
{ |
| 99 |
log("Source missing from KICK message"); |
| 100 |
return; |
| 101 |
} |
| 102 |
else if (ac != 3) |
| 103 |
{ |
| 104 |
return; |
| 105 |
} |
| 106 |
do_kick(source, ac, av); |
| 107 |
} |
| 108 |
|
| 109 |
/*************************************************************************/ |
| 110 |
|
| 111 |
static void |
| 112 |
m_kill(char *source, int ac, char **av) |
| 113 |
{ |
| 114 |
if (!*source) |
| 115 |
{ |
| 116 |
log("Source missing from KILL message"); |
| 117 |
return; |
| 118 |
} |
| 119 |
else if (ac != 2) |
| 120 |
{ |
| 121 |
return; |
| 122 |
} |
| 123 |
/* Recover if someone kills us. If introduce_user() returns 0, then |
| 124 |
* the user in question isn't a pseudoclient, so pass it on to the |
| 125 |
* user handling code. */ |
| 126 |
if (!introduce_user(av[0])) |
| 127 |
do_kill(source, ac, av); |
| 128 |
} |
| 129 |
|
| 130 |
/*************************************************************************/ |
| 131 |
|
| 132 |
static void |
| 133 |
m_mode(char *source, int ac, char **av) |
| 134 |
{ |
| 135 |
if (!*source) |
| 136 |
{ |
| 137 |
log("Source missing from MODE message"); |
| 138 |
return; |
| 139 |
} |
| 140 |
|
| 141 |
if (*av[0] == '#' || *av[0] == '&') |
| 142 |
{ |
| 143 |
if (ac < 2) |
| 144 |
return; |
| 145 |
do_cmode(source, ac, av); |
| 146 |
} |
| 147 |
else |
| 148 |
{ |
| 149 |
if (ac != 2) |
| 150 |
{ |
| 151 |
return; |
| 152 |
} |
| 153 |
else if (irc_stricmp(source, av[0]) != 0 && strchr(source, '.') == NULL) |
| 154 |
{ |
| 155 |
log("user: MODE %s %s from different nick %s!", av[0], av[1], source); |
| 156 |
wallops(NULL, "%s attempted to change mode %s for %s", |
| 157 |
source, av[1], av[0]); |
| 158 |
return; |
| 159 |
} |
| 160 |
do_umode(source, ac, av); |
| 161 |
} |
| 162 |
} |
| 163 |
|
| 164 |
/*************************************************************************/ |
| 165 |
|
| 166 |
static void |
| 167 |
m_motd(char *source, int ac, char **av) |
| 168 |
{ |
| 169 |
FILE *f; |
| 170 |
char buf[BUFSIZE]; |
| 171 |
|
| 172 |
if (!*source) |
| 173 |
{ |
| 174 |
log("Source missing from MOTD message"); |
| 175 |
return; |
| 176 |
} |
| 177 |
|
| 178 |
f = fopen(MOTDFilename, "r"); |
| 179 |
send_cmd(ServerName, "375 %s :- %s Message of the Day", source, ServerName); |
| 180 |
if (f) |
| 181 |
{ |
| 182 |
while (fgets(buf, sizeof(buf), f)) |
| 183 |
{ |
| 184 |
buf[strlen(buf) - 1] = 0; |
| 185 |
send_cmd(ServerName, "372 %s :- %s", source, buf); |
| 186 |
} |
| 187 |
fclose(f); |
| 188 |
} |
| 189 |
else |
| 190 |
{ |
| 191 |
send_cmd(ServerName, "372 %s :- MOTD file not found! Please " |
| 192 |
"contact your IRC administrator.", source); |
| 193 |
} |
| 194 |
} |
| 195 |
|
| 196 |
/*************************************************************************/ |
| 197 |
|
| 198 |
static void |
| 199 |
m_part(char *source, int ac, char **av) |
| 200 |
{ |
| 201 |
if (!*source) |
| 202 |
{ |
| 203 |
log("Source missing from PART message"); |
| 204 |
return; |
| 205 |
} |
| 206 |
else if (ac < 1 || ac > 2) |
| 207 |
{ |
| 208 |
return; |
| 209 |
} |
| 210 |
do_part(source, ac, av); |
| 211 |
} |
| 212 |
|
| 213 |
/*************************************************************************/ |
| 214 |
|
| 215 |
static const char msg_up_inactive[] = |
| 216 |
"Network buffer size exceeded inactive threshold (%d%%), not processing" |
| 217 |
" PRIVMSGs"; |
| 218 |
static const char msg_up_ignore[] = |
| 219 |
"Network buffer size exceeded ignore threshold (%d%%), ignoring PRIVMSGs"; |
| 220 |
static const char msg_down_inactive[] = |
| 221 |
"Network buffer size dropped below ignore threshold (%d%%), not" |
| 222 |
" processing PRIVMSGs"; |
| 223 |
static const char msg_down_normal[] = |
| 224 |
"Network buffer size dropped below inactive threshold (%d%%)," |
| 225 |
" processing PRIVMSGs normally"; |
| 226 |
|
| 227 |
static void |
| 228 |
m_privmsg(char *source, int ac, char **av) |
| 229 |
{ |
| 230 |
/* PRIVMSG handling status based on NetBufferLimit settings */ |
| 231 |
static enum |
| 232 |
{ NORMAL, INACTIVE, IGNORE } netbuf_status = NORMAL; |
| 233 |
|
| 234 |
uint32 start, stop; /* When processing started and finished */ |
| 235 |
User *u = get_user(source); |
| 236 |
char *s; |
| 237 |
|
| 238 |
|
| 239 |
if (!*source) |
| 240 |
{ |
| 241 |
log("Source missing from PRIVMSG message"); |
| 242 |
return; |
| 243 |
} |
| 244 |
else if (ac != 2) |
| 245 |
{ |
| 246 |
return; |
| 247 |
} |
| 248 |
|
| 249 |
/* If a server is specified (nick@server format), make sure it matches |
| 250 |
* us, and strip it off. */ |
| 251 |
s = strchr(av[0], '@'); |
| 252 |
if (s) |
| 253 |
{ |
| 254 |
*s++ = 0; |
| 255 |
if (stricmp(s, ServerName) != 0) |
| 256 |
return; |
| 257 |
} |
| 258 |
|
| 259 |
/* Check network buffer status. */ |
| 260 |
if (NetBufferLimitInactive) |
| 261 |
{ |
| 262 |
int bufstat = sock_bufstat(servsock, NULL, NULL, NULL, NULL); |
| 263 |
const char *message = NULL; |
| 264 |
int value = 0; |
| 265 |
switch (netbuf_status) |
| 266 |
{ |
| 267 |
case NORMAL: |
| 268 |
if (NetBufferLimitIgnore && bufstat >= NetBufferLimitIgnore) |
| 269 |
{ |
| 270 |
message = msg_up_ignore; |
| 271 |
value = NetBufferLimitIgnore; |
| 272 |
netbuf_status = IGNORE; |
| 273 |
} |
| 274 |
else if (bufstat >= NetBufferLimitInactive) |
| 275 |
{ |
| 276 |
message = msg_up_inactive; |
| 277 |
value = NetBufferLimitInactive; |
| 278 |
netbuf_status = INACTIVE; |
| 279 |
} |
| 280 |
break; |
| 281 |
case INACTIVE: |
| 282 |
if (NetBufferLimitIgnore && bufstat >= NetBufferLimitIgnore) |
| 283 |
{ |
| 284 |
message = msg_up_ignore; |
| 285 |
value = NetBufferLimitIgnore; |
| 286 |
netbuf_status = IGNORE; |
| 287 |
} |
| 288 |
else if (bufstat < NetBufferLimitInactive) |
| 289 |
{ |
| 290 |
message = msg_down_normal; |
| 291 |
value = NetBufferLimitInactive; |
| 292 |
netbuf_status = NORMAL; |
| 293 |
} |
| 294 |
break; |
| 295 |
case IGNORE: |
| 296 |
if (bufstat < NetBufferLimitInactive) |
| 297 |
{ |
| 298 |
message = msg_down_normal; |
| 299 |
value = NetBufferLimitInactive; |
| 300 |
netbuf_status = NORMAL; |
| 301 |
} |
| 302 |
else if (bufstat < NetBufferLimitIgnore) |
| 303 |
{ |
| 304 |
message = msg_down_inactive; |
| 305 |
value = NetBufferLimitIgnore; |
| 306 |
netbuf_status = INACTIVE; |
| 307 |
} |
| 308 |
break; |
| 309 |
} /* switch (netbuf_status) */ |
| 310 |
if (message) |
| 311 |
{ |
| 312 |
log(message, value); |
| 313 |
wallops(NULL, message, value); |
| 314 |
} |
| 315 |
} |
| 316 |
|
| 317 |
/* Check if we should ignore. Operators always get through. */ |
| 318 |
if (u) |
| 319 |
{ |
| 320 |
ignore_update(u, 0); |
| 321 |
if (!is_oper(u)) |
| 322 |
{ |
| 323 |
if (netbuf_status != NORMAL) |
| 324 |
{ |
| 325 |
if (netbuf_status == INACTIVE) |
| 326 |
{ |
| 327 |
if (u) |
| 328 |
notice_lang(av[0], u, SERVICES_IS_BUSY); |
| 329 |
else |
| 330 |
notice(av[0], source, getstring(NULL, SERVICES_IS_BUSY)); |
| 331 |
} |
| 332 |
return; |
| 333 |
} |
| 334 |
else if (allow_ignore && IgnoreDecay && IgnoreThreshold) |
| 335 |
{ |
| 336 |
if (u->ignore >= IgnoreThreshold) |
| 337 |
{ |
| 338 |
log("Ignored message from %s: \"%s\"", source, inbuf); |
| 339 |
return; |
| 340 |
} |
| 341 |
} |
| 342 |
} |
| 343 |
} |
| 344 |
|
| 345 |
/* Not ignored; actually execute the command, and update ignore data. */ |
| 346 |
start = time_msec(); |
| 347 |
call_callback_3(cb_privmsg, source, av[0], av[1]); |
| 348 |
stop = time_msec(); |
| 349 |
if (stop > start && u && !is_oper(u)) |
| 350 |
ignore_update(u, stop - start); |
| 351 |
} |
| 352 |
|
| 353 |
/*************************************************************************/ |
| 354 |
|
| 355 |
static void |
| 356 |
m_quit(char *source, int ac, char **av) |
| 357 |
{ |
| 358 |
if (!*source) |
| 359 |
{ |
| 360 |
log("Source missing from QUIT message"); |
| 361 |
return; |
| 362 |
} |
| 363 |
else if (ac != 1) |
| 364 |
{ |
| 365 |
return; |
| 366 |
} |
| 367 |
do_quit(source, ac, av); |
| 368 |
} |
| 369 |
|
| 370 |
/*************************************************************************/ |
| 371 |
|
| 372 |
static void |
| 373 |
m_server(char *source, int ac, char **av) |
| 374 |
{ |
| 375 |
do_server(source, ac, av); |
| 376 |
} |
| 377 |
|
| 378 |
/*************************************************************************/ |
| 379 |
|
| 380 |
static void |
| 381 |
m_squit(char *source, int ac, char **av) |
| 382 |
{ |
| 383 |
do_squit(source, ac, av); |
| 384 |
} |
| 385 |
|
| 386 |
/*************************************************************************/ |
| 387 |
|
| 388 |
static void |
| 389 |
m_stats(char *source, int ac, char **av) |
| 390 |
{ |
| 391 |
if (!*source) |
| 392 |
{ |
| 393 |
log("Source missing from STATS message"); |
| 394 |
return; |
| 395 |
} |
| 396 |
else if (ac < 1) |
| 397 |
{ |
| 398 |
return; |
| 399 |
} |
| 400 |
|
| 401 |
switch (*av[0]) |
| 402 |
{ |
| 403 |
case 'u': |
| 404 |
{ |
| 405 |
int uptime = time(NULL) - start_time; |
| 406 |
Module *module_operserv; |
| 407 |
typeof(get_operserv_data) * p_get_operserv_data; |
| 408 |
int32 maxusercnt; |
| 409 |
|
| 410 |
send_cmd(NULL, "242 %s :Services up %d day%s, %02d:%02d:%02d", |
| 411 |
source, uptime / 86400, (uptime / 86400 == 1) ? "" : "s", |
| 412 |
(uptime / 3600) % 24, (uptime / 60) % 60, uptime % 60); |
| 413 |
if ((module_operserv = find_module("operserv/main")) != NULL |
| 414 |
&& (p_get_operserv_data = |
| 415 |
get_module_symbol(module_operserv, "get_operserv_data")) |
| 416 |
&& p_get_operserv_data(OSDATA_MAXUSERCNT, &maxusercnt)) |
| 417 |
{ |
| 418 |
send_cmd(NULL, "250 %s :Current users: %d (%d ops); maximum %d", |
| 419 |
source, usercnt, opcnt, maxusercnt); |
| 420 |
} |
| 421 |
else |
| 422 |
{ |
| 423 |
send_cmd(NULL, "250 %s :Current users: %d (%d ops)", |
| 424 |
source, usercnt, opcnt); |
| 425 |
} |
| 426 |
send_cmd(NULL, "219 %s u :End of /STATS report.", source); |
| 427 |
break; |
| 428 |
} /* case 'u' */ |
| 429 |
|
| 430 |
case 'l': |
| 431 |
{ |
| 432 |
uint64 read, written; |
| 433 |
sock_rwstat(servsock, &read, &written); |
| 434 |
send_cmd(NULL, "211 %s Server SendBuf SentBytes SentMsgs RecvBuf " |
| 435 |
"RecvBytes RecvMsgs ConnTime", source); |
| 436 |
#if SIZEOF_LONG >= 8 |
| 437 |
send_cmd(NULL, "211 %s %s %u %lu %d %u %lu %d %ld", |
| 438 |
source, RemoteServer, |
| 439 |
read_buffer_len(servsock), (unsigned long) read, -1, |
| 440 |
write_buffer_len(servsock), (unsigned long) written, -1, |
| 441 |
(long) start_time); |
| 442 |
#else // assume long long is available |
| 443 |
send_cmd(NULL, "211 %s %s %u %llu %d %u %llu %d %ld", |
| 444 |
source, RemoteServer, |
| 445 |
read_buffer_len(servsock), (unsigned long long) read, -1, |
| 446 |
write_buffer_len(servsock), (unsigned long long) written, -1, |
| 447 |
(long) start_time); |
| 448 |
#endif |
| 449 |
send_cmd(NULL, "219 %s l :End of /STATS report.", source); |
| 450 |
break; |
| 451 |
} |
| 452 |
|
| 453 |
case 'c': |
| 454 |
case 'h': |
| 455 |
case 'i': |
| 456 |
case 'k': |
| 457 |
case 'm': |
| 458 |
case 'o': |
| 459 |
case 'y': |
| 460 |
send_cmd(NULL, "219 %s %c :/STATS %c not applicable or not supported.", |
| 461 |
source, *av[0], *av[0]); |
| 462 |
break; |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
/*************************************************************************/ |
| 467 |
|
| 468 |
static void |
| 469 |
m_time(char *source, int ac, char **av) |
| 470 |
{ |
| 471 |
time_t t; |
| 472 |
struct tm *tm; |
| 473 |
char buf[64]; |
| 474 |
|
| 475 |
if (!*source) |
| 476 |
{ |
| 477 |
log("Source missing from TIME message"); |
| 478 |
return; |
| 479 |
} |
| 480 |
|
| 481 |
time(&t); |
| 482 |
tm = localtime(&t); |
| 483 |
strftime(buf, sizeof(buf), "%a %b %d %H:%M:%S %Y %Z", tm); |
| 484 |
send_cmd(NULL, "391 %s %s :%s", source, ServerName, buf); |
| 485 |
} |
| 486 |
|
| 487 |
/*************************************************************************/ |
| 488 |
|
| 489 |
static void |
| 490 |
m_topic(char *source, int ac, char **av) |
| 491 |
{ |
| 492 |
if (ac != 4) |
| 493 |
return; |
| 494 |
do_topic(source, ac, av); |
| 495 |
} |
| 496 |
|
| 497 |
/*************************************************************************/ |
| 498 |
|
| 499 |
static void |
| 500 |
m_version(char *source, int ac, char **av) |
| 501 |
{ |
| 502 |
if (!*source) |
| 503 |
{ |
| 504 |
log("Source missing from VERSION message"); |
| 505 |
return; |
| 506 |
} |
| 507 |
send_cmd(ServerName, "351 %s %s-%s %s :%s", source, |
| 508 |
program_name, version_number, ServerName, version_build); |
| 509 |
} |
| 510 |
|
| 511 |
/*************************************************************************/ |
| 512 |
|
| 513 |
static void |
| 514 |
m_whois(char *source, int ac, char **av) |
| 515 |
{ |
| 516 |
if (!*source) |
| 517 |
{ |
| 518 |
log("Source missing from WHOIS message"); |
| 519 |
return; |
| 520 |
} |
| 521 |
else if (ac < 1) |
| 522 |
{ |
| 523 |
return; |
| 524 |
} |
| 525 |
|
| 526 |
if (call_callback_3(cb_whois, source, av[0], ac > 1 ? av[1] : NULL) <= 0) |
| 527 |
{ |
| 528 |
send_cmd(ServerName, "401 %s %s :No such service.", source, av[0]); |
| 529 |
} |
| 530 |
} |
| 531 |
|
| 532 |
/*************************************************************************/ |
| 533 |
|
| 534 |
/* Basic messages (defined above). Note that NICK and USER are left to the |
| 535 |
* protocol modules, since their usage varies widely between protocols. */ |
| 536 |
|
| 537 |
static Message base_messages[] = { |
| 538 |
|
| 539 |
{"401", NULL}, |
| 540 |
{"436", m_nickcoll}, |
| 541 |
{"AWAY", NULL}, |
| 542 |
{"INFO", m_info}, |
| 543 |
{"JOIN", m_join}, |
| 544 |
{"KICK", m_kick}, |
| 545 |
{"KILL", m_kill}, |
| 546 |
{"MODE", m_mode}, |
| 547 |
{"MOTD", m_motd}, |
| 548 |
{"NOTICE", NULL}, |
| 549 |
{"PART", m_part}, |
| 550 |
{"PASS", NULL}, |
| 551 |
{"PING", m_ping}, |
| 552 |
{"PONG", NULL}, |
| 553 |
{"PRIVMSG", m_privmsg}, |
| 554 |
{"QUIT", m_quit}, |
| 555 |
{"SERVER", m_server}, |
| 556 |
{"SQUIT", m_squit}, |
| 557 |
{"STATS", m_stats}, |
| 558 |
{"TIME", m_time}, |
| 559 |
{"TOPIC", m_topic}, |
| 560 |
{"VERSION", m_version}, |
| 561 |
{"WALLOPS", NULL}, |
| 562 |
{"WHOIS", m_whois}, |
| 563 |
|
| 564 |
{NULL} |
| 565 |
|
| 566 |
}; |
| 567 |
|
| 568 |
/*************************************************************************/ |
| 569 |
/******************** Message registration and lookup ********************/ |
| 570 |
/*************************************************************************/ |
| 571 |
|
| 572 |
/* Structure to link tables together */ |
| 573 |
typedef struct messagetable_ MessageTable; |
| 574 |
struct messagetable_ |
| 575 |
{ |
| 576 |
MessageTable *next, *prev; |
| 577 |
Message *table; |
| 578 |
}; |
| 579 |
static MessageTable *msgtable = NULL; |
| 580 |
|
| 581 |
/* List of known messages (for speed-lookup list) */ |
| 582 |
typedef struct messagenode_ MessageNode; |
| 583 |
struct messagenode_ |
| 584 |
{ |
| 585 |
MessageNode *next, *prev; |
| 586 |
Message *msg; |
| 587 |
}; |
| 588 |
static MessageNode *msglist = NULL; |
| 589 |
|
| 590 |
/*************************************************************************/ |
| 591 |
/*************************************************************************/ |
| 592 |
|
| 593 |
/* (Re)generate the speed-lookup list. This list is used to reduce the |
| 594 |
* time spent searching for messages; every time a message is seen, its |
| 595 |
* entry in this list is moved one place closer to the head of the list, |
| 596 |
* allowing frequently-seen messages to "percolate" to the top of the list |
| 597 |
* so that they will be found more quickly by searches. |
| 598 |
*/ |
| 599 |
|
| 600 |
static void |
| 601 |
init_message_list(void) |
| 602 |
{ |
| 603 |
MessageNode *mn, *mn2; |
| 604 |
MessageTable *mt; |
| 605 |
Message *m; |
| 606 |
|
| 607 |
LIST_FOREACH_SAFE(mn, msglist, mn2) free(mn); |
| 608 |
msglist = NULL; |
| 609 |
|
| 610 |
LIST_FOREACH(mt, msgtable) |
| 611 |
{ |
| 612 |
for (m = mt->table; m->name; m++) |
| 613 |
{ |
| 614 |
LIST_SEARCH(msglist, msg->name, m->name, stricmp, mn); |
| 615 |
if (!mn) |
| 616 |
{ |
| 617 |
mn = smalloc(sizeof(*mn)); |
| 618 |
mn->msg = m; |
| 619 |
LIST_INSERT(mn, msglist); |
| 620 |
} |
| 621 |
} |
| 622 |
} |
| 623 |
} |
| 624 |
|
| 625 |
/*************************************************************************/ |
| 626 |
|
| 627 |
/* Register the given table of messages. Returns 1 on success, 0 on |
| 628 |
* failure (`table' == NULL, `table' already registered, or out of memory). |
| 629 |
*/ |
| 630 |
|
| 631 |
int |
| 632 |
register_messages(Message * table) |
| 633 |
{ |
| 634 |
MessageTable *mt; |
| 635 |
|
| 636 |
if (!table) |
| 637 |
return 0; |
| 638 |
LIST_SEARCH_SCALAR(msgtable, table, table, mt); |
| 639 |
if (mt) /* if it's already on the list, abort */ |
| 640 |
return 0; |
| 641 |
mt = malloc(sizeof(*mt)); |
| 642 |
if (!mt) /* out of memory */ |
| 643 |
return 0; |
| 644 |
mt->table = table; |
| 645 |
LIST_INSERT(mt, msgtable); |
| 646 |
init_message_list(); |
| 647 |
return 1; |
| 648 |
} |
| 649 |
|
| 650 |
/*************************************************************************/ |
| 651 |
|
| 652 |
/* Unregister the given table of messages. Returns 1 on success, 0 on |
| 653 |
* failure (`table' not registered). |
| 654 |
*/ |
| 655 |
|
| 656 |
int |
| 657 |
unregister_messages(Message * table) |
| 658 |
{ |
| 659 |
MessageTable *mt; |
| 660 |
|
| 661 |
LIST_SEARCH_SCALAR(msgtable, table, table, mt); |
| 662 |
if (!mt) |
| 663 |
return 0; |
| 664 |
LIST_REMOVE(mt, msgtable); |
| 665 |
free(mt); |
| 666 |
init_message_list(); |
| 667 |
return 1; |
| 668 |
} |
| 669 |
|
| 670 |
/*************************************************************************/ |
| 671 |
|
| 672 |
/* Return the Message structure for the given message name, or NULL if none |
| 673 |
* exists. If there are multiple tables with entries for the message, |
| 674 |
* returns the entry in the most recently registered table. |
| 675 |
*/ |
| 676 |
|
| 677 |
Message * |
| 678 |
find_message(const char *name) |
| 679 |
{ |
| 680 |
MessageNode *mn; |
| 681 |
|
| 682 |
LIST_SEARCH(msglist, msg->name, name, stricmp, mn); |
| 683 |
if (mn) |
| 684 |
{ |
| 685 |
MessageNode *prev = mn->prev; |
| 686 |
if (prev) |
| 687 |
{ |
| 688 |
MessageNode *pprev = prev->prev; |
| 689 |
MessageNode *next = mn->next; |
| 690 |
/* Current order: pprev -> prev -> mn -> next */ |
| 691 |
/* New order: pprev -> mn -> prev -> next */ |
| 692 |
if (pprev) |
| 693 |
pprev->next = mn; |
| 694 |
else |
| 695 |
msglist = mn; |
| 696 |
mn->prev = pprev; |
| 697 |
mn->next = prev; |
| 698 |
prev->prev = mn; |
| 699 |
prev->next = next; |
| 700 |
if (next) |
| 701 |
next->prev = prev; |
| 702 |
} |
| 703 |
return mn->msg; |
| 704 |
} |
| 705 |
return NULL; |
| 706 |
} |
| 707 |
|
| 708 |
/*************************************************************************/ |
| 709 |
/************************ Initialization/cleanup *************************/ |
| 710 |
/*************************************************************************/ |
| 711 |
|
| 712 |
int |
| 713 |
messages_init(int ac, char **av) |
| 714 |
{ |
| 715 |
if (!register_messages(base_messages)) |
| 716 |
{ |
| 717 |
log("messages_init: Unable to register base messages\n"); |
| 718 |
return 0; |
| 719 |
} |
| 720 |
cb_privmsg = register_callback("m_privmsg"); |
| 721 |
cb_whois = register_callback("m_whois"); |
| 722 |
if (cb_privmsg < 0 || cb_whois < 0) |
| 723 |
{ |
| 724 |
log("messages_init: register_callback() failed\n"); |
| 725 |
return 0; |
| 726 |
} |
| 727 |
return 1; |
| 728 |
} |
| 729 |
|
| 730 |
/*************************************************************************/ |
| 731 |
|
| 732 |
void |
| 733 |
messages_cleanup(void) |
| 734 |
{ |
| 735 |
unregister_callback(cb_whois); |
| 736 |
unregister_callback(cb_privmsg); |
| 737 |
unregister_messages(base_messages); |
| 738 |
} |
| 739 |
|
| 740 |
/*************************************************************************/ |
| 741 |
|
| 742 |
/* |
| 743 |
* Local variables: |
| 744 |
* c-file-style: "stroustrup" |
| 745 |
* c-file-offsets: ((case-label . *) (statement-case-intro . *)) |
| 746 |
* indent-tabs-mode: nil |
| 747 |
* End: |
| 748 |
* |
| 749 |
* vim: expandtab shiftwidth=4: |
| 750 |
*/ |
