/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* wu.c: Write a telegram to a user from another
- *
+ *
* Known contributors to this file:
* Steve McClure, 2000
- *
+ * Markus Armbruster, 2005-2021
*/
-#include <stdarg.h>
-#include "misc.h"
+#include <config.h>
+
#include <fcntl.h>
-#if !defined(_WIN32)
+#include <stdarg.h>
#include <sys/uio.h>
-#endif
+#include <unistd.h>
+#include "misc.h"
#include "nat.h"
-#include "tel.h"
-#include "file.h"
-#include "player.h"
+#include "optlist.h"
#include "prototypes.h"
+#include "tel.h"
+#include "update.h"
-static struct telstr last_tel[MAXNOC];
+static struct telstr last_tel[MAXNOC];
void
clear_telegram_is_new(natid to)
{
- last_tel[to].tel_type = 0;
- last_tel[to].tel_from = 0;
- last_tel[to].tel_date = 0;
+ last_tel[to].tel_from = NATID_BAD;
}
-/*
- * telegram_is_new counts new telegrams the same as read_telegrams in
- * lib/commands/mail.c and lib/commands/rea.c
- */
-
static int
-telegram_is_new (natid to, struct telstr *tel)
+telegram_is_new(natid to, struct telstr *tel)
{
- extern int update_pending;
- int is_new = 0;
-
- is_new |= tel->tel_type != last_tel[to].tel_type;
- is_new |= tel->tel_from != last_tel[to].tel_from;
- is_new |= !update_pending && /* sometimes updates take a long time */
- abs (tel->tel_date - last_tel[to].tel_date) > TEL_SECONDS;
-
- last_tel[to].tel_type = tel->tel_type;
- last_tel[to].tel_from = tel->tel_from;
- last_tel[to].tel_date = tel->tel_date;
-
- return is_new;
+ if (tel->tel_from != last_tel[to].tel_from
+ || tel->tel_type != last_tel[to].tel_type
+ || (tel->tel_type != TEL_UPDATE
+ && tel->tel_date - last_tel[to].tel_date > TEL_SECONDS)) {
+ last_tel[to] = *tel;
+ return 1;
+ }
+ return 0;
}
-/*VARARGS*/
+/*
+ * Send a telegram from @from to @to.
+ * Format text to send using printf-style @format and optional
+ * arguments. It is plain ASCII.
+ * If running from the update, telegram type is TEL_UPDATE.
+ * Else if @from is a deity, type is TEL_BULLETIN.
+ * Else it is TEL_NORM.
+ * Return 0 on success, -1 on error.
+ */
int
-wu(natid from, natid to, s_char *format, ...)
+wu(natid from, natid to, char *format, ...)
{
- struct natstr *np;
- va_list ap;
- s_char buf[4096];
- extern int update_pending;
-
- va_start(ap, format);
- (void) vsprintf(buf, format, ap);
- va_end(ap);
- np = getnatp(from);
- if (update_pending)
- return typed_wu(from, to, buf, TEL_UPDATE);
- else if (np->nat_stat & STAT_GOD)
- return typed_wu(from, to, buf, TEL_BULLETIN);
- else
- return typed_wu(from, to, buf, TEL_NORM);
+ struct natstr *np;
+ va_list ap;
+ char buf[4096];
+
+ va_start(ap, format);
+ (void)vsprintf(buf, format, ap);
+ va_end(ap);
+ np = getnatp(from);
+ if (update_running)
+ return typed_wu(from, to, buf, TEL_UPDATE);
+ else if (np->nat_stat == STAT_GOD)
+ return typed_wu(from, to, buf, TEL_BULLETIN);
+ else
+ return typed_wu(from, to, buf, TEL_NORM);
}
+/*
+ * Send a telegram from @from to @to.
+ * @message is the text to send, in UTF-8.
+ * @type is the telegram type.
+ * Return 0 on success, -1 on error.
+ */
int
-typed_wu(natid from, natid to, s_char *message, int type)
+typed_wu(natid from, natid to, char *message, int type)
{
- register s_char *bp;
- int len;
- struct telstr tel;
- struct natstr *np;
-#if !defined(_WIN32)
- struct iovec iov[2];
-#endif
- int fd;
- s_char box[1024];
- int notify = 0;
- int new_tele = 0;
- struct player *other;
-
- if (type == TEL_ANNOUNCE)
- strcpy(box, annfil);
- else
- mailbox(box, to);
-
- if (type != TEL_ANNOUNCE)
- if ((np = getnatp(to)) == 0 ||
- ((np->nat_stat & STAT_NORM) == 0 &&
- (np->nat_stat & STAT_SANCT) == 0)) {
- return -1;
- }
+ size_t len;
+ struct telstr tel;
+ struct natstr *np;
+ struct iovec iov[2];
+ int fd;
+ char box[1024];
+ struct player *other;
+
+ if (type == TEL_ANNOUNCE) {
+ strcpy(box, annfil);
+ np = NULL;
+ } else {
+ mailbox(box, to);
+ np = getnatp(to);
+ if (!np || np->nat_stat < STAT_SANCT)
+ return -1;
+ }
#if !defined(_WIN32)
- if ((fd = open(box, O_WRONLY|O_APPEND, 0)) < 0) {
+ if ((fd = open(box, O_WRONLY | O_APPEND, 0)) < 0) {
#else
- if ((fd = open(box, O_WRONLY|O_APPEND|O_BINARY, 0)) < 0) {
+ if ((fd = open(box, O_WRONLY | O_APPEND | O_BINARY, 0)) < 0) {
#endif
- logerror("telegram 'open' of %s (#%d) failed", box, to);
- return -1;
+ logerror("telegram 'open' of %s failed", box);
+ return -1;
+ }
+
+ memset(&tel, 0, sizeof(tel));
+ tel.tel_from = from;
+ (void)time(&tel.tel_date);
+ len = strlen(message);
+ CANT_HAPPEN(len && message[len - 1] != '\n');
+ tel.tel_length = len;
+ tel.tel_type = type;
+ tel.tel_cont = !telegram_is_new(to, &tel);
+ iov[0].iov_base = &tel;
+ iov[0].iov_len = sizeof(tel);
+ iov[1].iov_base = message;
+ iov[1].iov_len = len;
+ if (writev(fd, iov, 2) < (int)(iov[0].iov_len + iov[1].iov_len)) {
+ logerror("telegram 'write' to %s failed", box);
+ close(fd);
+ return -1;
+ }
+ if (close(fd) < 0) {
+ logerror("telegram 'write' to %s failed to close.", box);
+ return -1;
+ }
+
+ if (type == TEL_ANNOUNCE) {
+ for (to = 0; NULL != (np = getnatp(to)); to++) {
+ if (np->nat_stat < STAT_SANCT)
+ continue;
+ if (!nat_accepts(to, from, REJ_ANNO))
+ continue;
+ if (!np->nat_ann || !tel.tel_cont) {
+ np->nat_ann++;
+ putnat(np);
+ }
}
- tel.tel_from = from;
- (void) time(&tel.tel_date);
- bp = message;
- while (*bp++)
- ;
- len = bp - message;
- if (len >= MAXTELSIZE)
- len = (MAXTELSIZE - 1);
- message[len] = 0;
- tel.tel_length = len;
- tel.tel_type = type;
-#if !defined(_WIN32)
- iov[0].iov_base = (caddr_t) &tel;
- iov[0].iov_len = sizeof(tel);
- iov[1].iov_base = message;
- iov[1].iov_len = len;
- if (writev(fd, iov, 2) < (int)(iov[0].iov_len + iov[1].iov_len)) {
-#else
- if ((write(fd, &tel, sizeof(tel)) != sizeof(tel)) ||
- (write(fd, message, len) != len)) {
-#endif
- logerror("telegram 'write' to #%d failed", to);
- } else if (type == TEL_ANNOUNCE) {
- for (to=0; NULL != (np = getnatp(to)); to++) {
- if (!(np->nat_stat & STAT_NORM) &&
- !(np->nat_stat & STAT_SANCT))
- continue;
- if (!player->god && (getrejects(from,np) & REJ_ANNO))
- continue;
- notify = (np->nat_ann == 0);
- np->nat_ann++;
- putnat(np);
- if (notify)
- player_wakeup_all(to);
+ } else {
+ if (!np->nat_tgms || !tel.tel_cont) {
+ np->nat_tgms++;
+ putnat(np);
+ if (np->nat_flags & NF_INFORM) {
+ other = getplayer(to);
+ if (other) {
+ if (np->nat_tgms == 1)
+ pr_inform(other, "[new tele]\n");
+ else
+ pr_inform(other, "[%d new teles]\n", np->nat_tgms);
}
- } else {
- notify = (np->nat_tgms == 0);
- new_tele = telegram_is_new(to, &tel);
- np->nat_tgms += new_tele || notify;
- putnat(np);
-
- if (new_tele && np->nat_flags & NF_INFORM) {
- if (NULL != (other = getplayer(to))) {
- if (np->nat_tgms == 1)
- pr_inform(other, "[new tele]\n");
- else
- pr_inform(other, "[%d new teles]\n",
- np->nat_tgms);
- player_wakeup_all(to);
- }
- } else if (notify)
- player_wakeup_all(to);
+ }
}
+ }
- close(fd);
- return 0;
+ return 0;
}
-
projects / empserver / blobdiff