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)
61 int type = MOTD_UNIVERSAL;
66 if (hostmask) { /* figure out if it's a class or hostmask */
67 for (s = hostmask; *s; s++)
68 if (!IsDigit(*s)) { /* not a digit, not a class... */
73 type = MOTD_CLASS; /* all digits, convert to class */
74 class = atoi(hostmask);
77 /* allocate memory and initialize the structure */
78 tmp = (struct Motd *)MyMalloc(sizeof(struct Motd));
82 if (type == MOTD_HOSTMASK)
83 DupString(tmp->id.hostmask, hostmask);
84 else if (type == MOTD_CLASS)
85 tmp->id.class = class;
86 DupString(tmp->path, path);
87 tmp->maxcount = maxcount;
93 /* This function reads a motd out of a file (if needed) and caches it */
94 static struct MotdCache *
95 motd_cache(struct Motd *motd)
98 struct MotdCache* cache;
100 char line[MOTD_LINESIZE + 2]; /* \r\n */
105 assert(0 != motd->path);
110 /* gotta read in the file, now */
111 if (!(file = fbopen(motd->path, "r"))) {
112 Debug((DEBUG_ERROR, "Couldn't open \"%s\": %s", motd->path,
117 /* need the file's modification time */
118 if (-1 == fbstat(&sb, file)) {
123 /* Ok, allocate a structure; we'll realloc later to trim memory */
124 cache = (struct MotdCache *)MyMalloc(sizeof(struct MotdCache) +
125 (MOTD_LINESIZE * (MOTD_MAXLINES - 1)));
127 cache->modtime = *localtime((time_t *) &sb.st_mtime); /* store modtime */
130 while (cache->count < motd->maxcount && fbgets(line, sizeof(line), file)) {
131 /* copy over line, stopping when we overflow or hit line end */
132 for (tmp = line, i = 0;
133 i < (MOTD_LINESIZE - 1) && *tmp && *tmp != '\r' && *tmp != '\n';
135 cache->motd[cache->count][i] = *tmp;
136 cache->motd[cache->count][i] = '\0';
141 fbclose(file); /* close the file */
143 /* trim memory usage a little */
144 motd->cache = (struct MotdCache *)MyRealloc(cache, sizeof(struct MotdCache) +
146 (cache->count - 1)));
152 motd_decache(struct Motd *motd)
154 struct MotdCache* cache;
158 if (!(cache = motd->cache)) /* we can be called for records with no cache */
161 motd->cache = 0; /* zero the cache */
163 MyFree(cache); /* very simple for a reason... */
166 /* This function destroys a struct Motd, destroying the cache if needed */
168 motd_destroy(struct Motd *motd)
172 MyFree(motd->path); /* we always must have a path */
173 if (motd->type == MOTD_HOSTMASK) /* free a host mask if any */
174 MyFree(motd->id.hostmask);
175 if (motd->cache) /* drop the cache */
178 MyFree(motd); /* free the structure */
181 /* We use this routine to look up the struct Motd to send to any given
185 motd_lookup(struct Client *cptr)
192 if (!MyUser(cptr)) /* not my user, always return remote motd */
193 return MotdList.remote;
195 class = get_client_class(cptr);
197 /* check the T-lines first */
198 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
199 if (ptr->type == MOTD_CLASS && ptr->id.class == class)
201 else if (ptr->type == MOTD_HOSTMASK &&
202 !match(ptr->id.hostmask, cptr->sockhost))
206 return MotdList.local; /* Ok, return the default motd */
209 /* Here is a routine that takes a MotdCache and sends it to a user */
211 motd_forward(struct Client *cptr, struct MotdCache *cache)
217 if (!cache) /* no motd to send */
218 return send_reply(cptr, ERR_NOMOTD);
221 send_reply(cptr, RPL_MOTDSTART, me.name);
222 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":- %d-%d-%d %d:%02d",
223 cache->modtime.tm_year + 1900, cache->modtime.tm_mon + 1,
224 cache->modtime.tm_mday, cache->modtime.tm_hour,
225 cache->modtime.tm_min);
227 for (i = 0; i < cache->count; i++)
228 send_reply(cptr, RPL_MOTD, cache->motd[i]);
230 return send_reply(cptr, RPL_ENDOFMOTD); /* end */
233 /* This routine is used to send the MOTD off to a user. */
235 motd_send(struct Client* cptr)
239 return motd_forward(cptr, motd_cache(motd_lookup(cptr)));
242 /* This routine sends the MOTD or something to newly-registered users. */
244 motd_signon(struct Client* cptr)
246 struct MotdCache *cache;
248 cache = motd_cache(motd_lookup(cptr));
251 send_reply(cptr, RPL_MOTDSTART, me.name);
252 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":\002Type /MOTD to read the AUP "
253 "before continuing using this service.\002");
254 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":The message of the day was last "
255 "changed: %d-%d-%d %d:%d", cache->modtime.tm_year + 1900,
256 cache->modtime.tm_mon + 1, cache->modtime.tm_mday,
257 cache->modtime.tm_hour, cache->modtime.tm_min);
258 send_reply(cptr, RPL_ENDOFMOTD);
260 motd_forward(cptr, cache);
264 /* motd_recache causes all the MOTD caches to be cleared */
270 motd_decache(MotdList.local); /* decache local and remote MOTDs */
271 motd_decache(MotdList.remote);
273 for (tmp = MotdList.other; tmp; tmp = tmp->next) /* now all the others */
276 /* now recache local and remote MOTDs */
277 motd_cache(MotdList.local);
278 motd_cache(MotdList.remote);
281 /* motd_init initializes the MOTD routines, including reading the
282 * ircd.motd and remote.motd files into cache
287 MotdList.local = motd_create(0, MPATH, MOTD_MAXLINES); /* init local */
288 motd_cache(MotdList.local); /* and cache it */
290 MotdList.remote = motd_create(0, RPATH, MOTD_MAXREMOTE); /* init remote */
291 motd_cache(MotdList.remote); /* and cache it */
293 MotdList.other = 0; /* no T-lines processed yet */
296 /* This routine adds a MOTD */
298 motd_add(const char *hostmask, const char *path)
302 tmp = motd_create(hostmask, path, MOTD_MAXLINES); /* create the motd */
304 tmp->next = MotdList.other; /* link it into the list */
305 MotdList.other = tmp;
308 /* This routine clears the list of MOTDs */
312 struct Motd *ptr, *next;
314 motd_decache(MotdList.local); /* decache local and remote MOTDs */
315 motd_decache(MotdList.remote);
317 if (MotdList.other) /* destroy other MOTDs */
318 for (ptr = MotdList.other; ptr; ptr = next) {
323 /* now recache local and remote MOTDs */
324 motd_cache(MotdList.local);
325 motd_cache(MotdList.remote);
328 /* This is called to report T-lines */
330 motd_report(struct Client *to)
334 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
335 if (ptr->type == MOTD_CLASS) /* class requires special handling */
336 send_reply(to, SND_EXPLICIT | RPL_STATSTLINE, "T %d %s", ptr->id.class,
338 else if (ptr->type == MOTD_HOSTMASK)
339 send_reply(to, RPL_STATSTLINE, 'T', ptr->id.hostmask, ptr->path);