2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * wu.c: Write a telegram to a user from another
30 * Known contributors to this file:
47 #include "prototypes.h"
49 static struct telstr last_tel[MAXNOC];
52 clear_telegram_is_new(natid to)
54 last_tel[to].tel_type = 0;
55 last_tel[to].tel_from = 0;
56 last_tel[to].tel_date = 0;
60 * telegram_is_new counts new telegrams the same as read_telegrams in
61 * lib/commands/mail.c and lib/commands/rea.c
65 telegram_is_new(natid to, struct telstr *tel)
69 is_new |= tel->tel_type != last_tel[to].tel_type;
70 is_new |= tel->tel_from != last_tel[to].tel_from;
71 is_new |= !update_pending && /* sometimes updates take a long time */
72 abs(tel->tel_date - last_tel[to].tel_date) > TEL_SECONDS;
74 last_tel[to].tel_type = tel->tel_type;
75 last_tel[to].tel_from = tel->tel_from;
76 last_tel[to].tel_date = tel->tel_date;
82 * Send a telegram from FROM to TO.
83 * Format text to send under control of printf-style FORMAT using
84 * optional arguments. It is plain ASCII.
85 * If running from the update, telegram type is TEL_UPDATE.
86 * Else if FROM is a deity, type is TEL_BULLETIN.
87 * Else it is TEL_NORM.
88 * Return 0 on success, -1 on error.
91 wu(natid from, natid to, char *format, ...)
98 (void)vsprintf(buf, format, ap);
102 return typed_wu(from, to, buf, TEL_UPDATE);
103 else if (np->nat_stat & STAT_GOD)
104 return typed_wu(from, to, buf, TEL_BULLETIN);
106 return typed_wu(from, to, buf, TEL_NORM);
110 * Send a telegram from FROM to TO.
111 * MESSAGE is the text to send, encoded as message text.
112 * TYPE is the telegram type.
113 * Return 0 on success, -1 on error.
116 typed_wu(natid from, natid to, char *message, int type)
129 struct player *other;
131 if (type == TEL_ANNOUNCE)
136 if (type != TEL_ANNOUNCE)
137 if ((np = getnatp(to)) == 0 ||
138 ((np->nat_stat & STAT_NORM) == 0 &&
139 (np->nat_stat & STAT_SANCT) == 0)) {
143 if ((fd = open(box, O_WRONLY | O_APPEND, 0)) < 0) {
145 if ((fd = open(box, O_WRONLY | O_APPEND | O_BINARY, 0)) < 0) {
147 logerror("telegram 'open' of %s (#%d) failed", box, to);
151 (void)time(&tel.tel_date);
152 len = strlen(message);
153 if (CANT_HAPPEN(len > MAXTELSIZE)) {
157 tel.tel_length = len;
160 iov[0].iov_base = &tel;
161 iov[0].iov_len = sizeof(tel);
162 iov[1].iov_base = message;
163 iov[1].iov_len = len;
164 if (writev(fd, iov, 2) < (int)(iov[0].iov_len + iov[1].iov_len)) {
166 if ((write(fd, &tel, sizeof(tel)) != sizeof(tel)) ||
167 (write(fd, message, len) != len)) {
169 logerror("telegram 'write' to #%d failed", to);
173 if (close(fd) == -1) {
174 logerror("telegram 'write' to #%d failed to close.", to);
175 } else if (write_ok && type == TEL_ANNOUNCE) {
176 for (to = 0; NULL != (np = getnatp(to)); to++) {
177 if (!(np->nat_stat & STAT_NORM) &&
178 !(np->nat_stat & STAT_SANCT))
180 if (!player->god && (getrejects(from, np) & REJ_ANNO))
182 notify = (np->nat_ann == 0);
186 player_wakeup_all(to);
188 } else if (write_ok) {
189 notify = (np->nat_tgms == 0);
190 new_tele = telegram_is_new(to, &tel);
191 np->nat_tgms += new_tele || notify;
194 if (new_tele && np->nat_flags & NF_INFORM) {
195 if (NULL != (other = getplayer(to))) {
196 if (np->nat_tgms == 1)
197 pr_inform(other, "[new tele]\n");
199 pr_inform(other, "[%d new teles]\n", np->nat_tgms);
200 player_wakeup_all(to);
203 player_wakeup_all(to);