2 * IRC - Internet Relay Chat, ircd/motd.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
5 * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
7 * See file AUTHORS in IRC package for additional names of
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 1, or (at your option)
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include "ircd_alloc.h"
32 #include "ircd_reply.h"
33 #include "ircd_string.h"
55 /* Create a struct Motd and initialize it */
57 motd_create(const char *hostmask, const char *path, int maxcount)
60 int type = MOTD_UNIVERSAL;
65 if (hostmask) { /* figure out if it's a class or hostmask */
66 type = MOTD_CLASS; /* all digits, convert to class */
68 for (s = hostmask; *s; s++)
69 if (!IsDigit(*s)) { /* not a digit, not a class... */
75 /* allocate memory and initialize the structure */
76 tmp = (struct Motd *)MyMalloc(sizeof(struct Motd));
83 DupString(tmp->id.hostmask, hostmask);
87 tmp->id.class = atoi(hostmask);
91 DupString(tmp->path, path);
92 tmp->maxcount = maxcount;
98 /* This function reads a motd out of a file (if needed) and caches it */
99 static struct MotdCache *
100 motd_cache(struct Motd *motd)
103 struct MotdCache* cache;
105 char line[MOTD_LINESIZE + 2]; /* \r\n */
110 assert(0 != motd->path);
115 /* gotta read in the file, now */
116 if (!(file = fbopen(motd->path, "r"))) {
117 Debug((DEBUG_ERROR, "Couldn't open \"%s\": %s", motd->path,
122 /* need the file's modification time */
123 if (-1 == fbstat(&sb, file)) {
128 /* Ok, allocate a structure; we'll realloc later to trim memory */
129 cache = (struct MotdCache *)MyMalloc(sizeof(struct MotdCache) +
130 (MOTD_LINESIZE * (MOTD_MAXLINES - 1)));
132 cache->modtime = *localtime((time_t *) &sb.st_mtime); /* store modtime */
135 while (cache->count < motd->maxcount && fbgets(line, sizeof(line), file)) {
136 /* copy over line, stopping when we overflow or hit line end */
137 for (tmp = line, i = 0;
138 i < (MOTD_LINESIZE - 1) && *tmp && *tmp != '\r' && *tmp != '\n';
140 cache->motd[cache->count][i] = *tmp;
141 cache->motd[cache->count][i] = '\0';
146 fbclose(file); /* close the file */
148 /* trim memory usage a little */
149 motd->cache = (struct MotdCache *)MyRealloc(cache, sizeof(struct MotdCache) +
151 (cache->count - 1)));
157 motd_decache(struct Motd *motd)
159 struct MotdCache* cache;
163 if (!(cache = motd->cache)) /* we can be called for records with no cache */
166 motd->cache = 0; /* zero the cache */
168 MyFree(cache); /* very simple for a reason... */
171 /* This function destroys a struct Motd, destroying the cache if needed */
173 motd_destroy(struct Motd *motd)
177 MyFree(motd->path); /* we always must have a path */
178 if (motd->type == MOTD_HOSTMASK) /* free a host mask if any */
179 MyFree(motd->id.hostmask);
180 if (motd->cache) /* drop the cache */
183 MyFree(motd); /* free the structure */
186 /* We use this routine to look up the struct Motd to send to any given
190 motd_lookup(struct Client *cptr)
197 if (!MyUser(cptr)) /* not my user, always return remote motd */
198 return MotdList.remote;
200 class = get_client_class(cptr);
202 /* check the T-lines first */
203 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
204 if (ptr->type == MOTD_CLASS && ptr->id.class == class)
206 else if (ptr->type == MOTD_HOSTMASK &&
207 !match(ptr->id.hostmask, cptr->sockhost))
211 return MotdList.local; /* Ok, return the default motd */
214 /* Here is a routine that takes a MotdCache and sends it to a user */
216 motd_forward(struct Client *cptr, struct MotdCache *cache)
222 if (!cache) /* no motd to send */
223 return send_reply(cptr, ERR_NOMOTD);
226 send_reply(cptr, RPL_MOTDSTART, me.name);
227 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":- %d-%d-%d %d:%02d",
228 cache->modtime.tm_year + 1900, cache->modtime.tm_mon + 1,
229 cache->modtime.tm_mday, cache->modtime.tm_hour,
230 cache->modtime.tm_min);
232 for (i = 0; i < cache->count; i++)
233 send_reply(cptr, RPL_MOTD, cache->motd[i]);
235 return send_reply(cptr, RPL_ENDOFMOTD); /* end */
238 /* This routine is used to send the MOTD off to a user. */
240 motd_send(struct Client* cptr)
244 return motd_forward(cptr, motd_cache(motd_lookup(cptr)));
247 /* This routine sends the MOTD or something to newly-registered users. */
249 motd_signon(struct Client* cptr)
251 struct MotdCache *cache;
253 cache = motd_cache(motd_lookup(cptr));
256 send_reply(cptr, RPL_MOTDSTART, me.name);
257 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":\002Type /MOTD to read the AUP "
258 "before continuing using this service.\002");
259 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":The message of the day was last "
260 "changed: %d-%d-%d %d:%d", cache->modtime.tm_year + 1900,
261 cache->modtime.tm_mon + 1, cache->modtime.tm_mday,
262 cache->modtime.tm_hour, cache->modtime.tm_min);
263 send_reply(cptr, RPL_ENDOFMOTD);
265 motd_forward(cptr, cache);
269 /* motd_recache causes all the MOTD caches to be cleared */
275 motd_decache(MotdList.local); /* decache local and remote MOTDs */
276 motd_decache(MotdList.remote);
278 for (tmp = MotdList.other; tmp; tmp = tmp->next) /* now all the others */
281 /* now recache local and remote MOTDs */
282 motd_cache(MotdList.local);
283 motd_cache(MotdList.remote);
286 /* motd_init initializes the MOTD routines, including reading the
287 * ircd.motd and remote.motd files into cache
292 MotdList.local = motd_create(0, MPATH, MOTD_MAXLINES); /* init local */
293 motd_cache(MotdList.local); /* and cache it */
295 MotdList.remote = motd_create(0, RPATH, MOTD_MAXREMOTE); /* init remote */
296 motd_cache(MotdList.remote); /* and cache it */
298 MotdList.other = 0; /* no T-lines processed yet */
301 /* This routine adds a MOTD */
303 motd_add(const char *hostmask, const char *path)
307 tmp = motd_create(hostmask, path, MOTD_MAXLINES); /* create the motd */
309 tmp->next = MotdList.other; /* link it into the list */
310 MotdList.other = tmp;
313 /* This routine clears the list of MOTDs */
317 struct Motd *ptr, *next;
319 motd_decache(MotdList.local); /* decache local and remote MOTDs */
320 motd_decache(MotdList.remote);
322 if (MotdList.other) /* destroy other MOTDs */
323 for (ptr = MotdList.other; ptr; ptr = next) {
330 /* now recache local and remote MOTDs */
331 motd_cache(MotdList.local);
332 motd_cache(MotdList.remote);
335 /* This is called to report T-lines */
337 motd_report(struct Client *to)
341 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
342 if (ptr->type == MOTD_CLASS) /* class requires special handling */
343 send_reply(to, SND_EXPLICIT | RPL_STATSTLINE, "T %d %s", ptr->id.class,
345 else if (ptr->type == MOTD_HOSTMASK)
346 send_reply(to, RPL_STATSTLINE, 'T', ptr->id.hostmask, ptr->path);