Import of Empire 4.2.12

2003-08-23 12:23:04 +00:00 · 2003-08-23 12:23:04 +00:00 · d8b7fdfae1
commit d8b7fdfae1
817 changed files with 126589 additions and 0 deletions
--- a/src/lib/update/anno.c
+++ b/src/lib/update/anno.c
@ -0,0 +1,137 @@
+/*
+ *  Empire - A multi-player, client/server Internet based war game.
+ *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *                           Ken Stevens, Steve McClure
+ *
+ *  This program 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
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  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
+ *
+ *  ---
+ *
+ *  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.
+ *
+ *  ---
+ *
+ *  anno.c: Delete announcements older than ANNO_KEEP_DAYS
+ * 
+ *  Known contributors to this file:
+ *     Ken Stevens, 1995
+ *     Doug Hay, 1998
+ *     Steve McClure, 2000
+ */
+
+#include "misc.h"
+#include "tel.h"
+#include <stdio.h>
+#include <fcntl.h>
+#if !defined(_WIN32)
+#include <sys/file.h>
+#include <unistd.h>
+#endif
+#include "update.h"
+#include "common.h"
+
+void
+delete_old_announcements(void)
+{
+	time_t	now;
+	time_t	old;
+	struct	telstr tgm;
+	FILE   *oldfp;
+	int     tmpfd;
+	s_char	tmp_filename[1024];
+	int	writeit;
+	s_char	message[MAXTELSIZE];
+	int	deleted = 0;
+	int	saved = 0;
+	int	length;
+	int     nbytes;
+	int	first = 1;
+
+	time(&now);
+	old = now - days(ANNO_KEEP_DAYS);
+	logerror("Deleting annos older than %s", ctime(&old));
+
+#if !defined(_WIN32)
+	if ((oldfp = fopen(annfil, "r+")) == 0) {
+#else
+	if ((oldfp = fopen(annfil, "r+b")) == 0) {
+#endif
+		logerror("can't read telegram file %s", annfil);
+		return;
+	}
+	sprintf(tmp_filename, "%s.tmp", annfil);
+#if !defined(_WIN32)
+	if ((tmpfd = open(tmp_filename, O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0) {
+#else
+	if ((tmpfd = open(tmp_filename, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0666)) < 0) {
+#endif
+		logerror("can't write telegram file %s", tmp_filename);
+		return;
+	}
+	while (fread((s_char *) &tgm, sizeof(tgm), 1, oldfp) == 1) {
+		writeit = 1;
+		if (tgm.tel_length < 0) {
+			logerror("bad telegram file header (length)");
+			return;
+		}
+		if (tgm.tel_type < 0 || tgm.tel_type > TEL_LAST) {
+			logerror("bad telegram file header (type)");
+			writeit = 0;
+		}
+		if (first) {
+			first = 0;
+			if (tgm.tel_date >= old) {
+				fclose(oldfp);
+				return;
+			}
+		}
+	
+		if (tgm.tel_date < old) {
+			writeit = 0;
+		}
+
+		if (writeit) {
+			if (write(tmpfd, &tgm, sizeof(tgm)) < (int)sizeof(tgm)) {
+				logerror("error writing to ann.tmp");
+				return;
+			}
+			++saved;
+		} else {
+			++deleted;
+		}
+		length = tgm.tel_length;
+		while (length > 0) {
+			nbytes = length;
+			if (nbytes > (int)sizeof(message))
+				nbytes = sizeof(message);
+			(void) fread(message, sizeof(s_char), nbytes, oldfp);
+			if (writeit) {
+				if (write(tmpfd, message, nbytes) < nbytes) {
+					logerror("Error writing to ann.tmp");
+					return;
+				}					
+			}
+			length -= nbytes;
+		}
+	}
+	logerror("%d announcements deleted; %d announcements saved",
+		 deleted, saved);
+	fclose(oldfp);
+	close(tmpfd);
+	unlink(annfil);
+	rename(tmp_filename, annfil);
+}