2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, 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 files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future 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:
51 #include "prototypes.h"
55 static struct telstr last_tel[MAXNOC];
58 clear_telegram_is_new(natid to)
60 last_tel[to].tel_type = 0;
61 last_tel[to].tel_from = 0;
62 last_tel[to].tel_date = 0;
66 * telegram_is_new counts new telegrams the same as read_telegrams in
67 * lib/commands/mail.c and lib/commands/rea.c
71 telegram_is_new(natid to, struct telstr *tel)
75 is_new |= tel->tel_type != last_tel[to].tel_type;
76 is_new |= tel->tel_from != last_tel[to].tel_from;
77 is_new |= !update_pending && /* sometimes updates take a long time */
78 abs(tel->tel_date - last_tel[to].tel_date) > TEL_SECONDS;
80 last_tel[to].tel_type = tel->tel_type;
81 last_tel[to].tel_from = tel->tel_from;
82 last_tel[to].tel_date = tel->tel_date;
88 * Send a telegram from FROM to TO.
89 * Format text to send using printf-style FORMAT and optional
90 * arguments. It is plain ASCII.
91 * If running from the update, telegram type is TEL_UPDATE.
92 * Else if FROM is a deity, type is TEL_BULLETIN.
93 * Else it is TEL_NORM.
94 * Return 0 on success, -1 on error.
97 wu(natid from, natid to, char *format, ...)
103 va_start(ap, format);
104 (void)vsprintf(buf, format, ap);
108 return typed_wu(from, to, buf, TEL_UPDATE);
109 else if (np->nat_stat == STAT_GOD)
110 return typed_wu(from, to, buf, TEL_BULLETIN);
112 return typed_wu(from, to, buf, TEL_NORM);
116 * Send a telegram from FROM to TO.
117 * MESSAGE is the text to send, in UTF-8.
118 * TYPE is the telegram type.
119 * Return 0 on success, -1 on error.
122 typed_wu(natid from, natid to, char *message, int type)
134 struct player *other;
136 if (type == TEL_ANNOUNCE)
141 if (type != TEL_ANNOUNCE)
142 if ((np = getnatp(to)) == 0 || np->nat_stat < STAT_SANCT)
145 if ((fd = open(box, O_WRONLY | O_APPEND, 0)) < 0) {
147 if ((fd = open(box, O_WRONLY | O_APPEND | O_BINARY, 0)) < 0) {
149 logerror("telegram 'open' of %s (#%d) failed", box, to);
153 (void)time(&tel.tel_date);
154 len = strlen(message);
155 if (CANT_HAPPEN(len > MAXTELSIZE)) {
159 tel.tel_length = len;
162 iov[0].iov_base = &tel;
163 iov[0].iov_len = sizeof(tel);
164 iov[1].iov_base = message;
165 iov[1].iov_len = len;
166 if (writev(fd, iov, 2) < (int)(iov[0].iov_len + iov[1].iov_len)) {
168 if ((write(fd, &tel, sizeof(tel)) != sizeof(tel)) ||
169 (write(fd, message, len) != len)) {
171 logerror("telegram 'write' to #%d failed", to);
175 if (close(fd) == -1) {
176 logerror("telegram 'write' to #%d failed to close.", to);
177 } else if (write_ok && type == TEL_ANNOUNCE) {
178 for (to = 0; NULL != (np = getnatp(to)); to++) {
179 if (np->nat_stat < STAT_SANCT)
181 if (!player->god && (getrejects(from, np) & REJ_ANNO))
186 } else if (write_ok) {
187 new_tele = telegram_is_new(to, &tel);
188 np->nat_tgms += new_tele || np->nat_tgms == 0;
191 if (new_tele && np->nat_flags & NF_INFORM) {
192 if (NULL != (other = getplayer(to))) {
193 if (np->nat_tgms == 1)
194 pr_inform(other, "[new tele]\n");
196 pr_inform(other, "[%d new teles]\n", np->nat_tgms);