/*
* 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) 1986-2016, 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.
*
* ---
*
* hours.c: Game hours determination; is it legal to play now?
- *
+ *
* Known contributors to this file:
* Dave Pare, 1989
* Doug Hay, 1998
* Steve McClure, 1998
+ * Markus Armbruster, 2004-2010
*/
-#include <errno.h>
-#include <stdio.h>
-#include "misc.h"
-#include "nat.h"
-#include "tel.h"
-#include "proto.h"
-#include "com.h"
-#include "deity.h"
-#include "keyword.h"
-#include "file.h"
-#include "common.h"
-
-#if defined(Rel4) || defined(_WIN32)
+#include <config.h>
+
+#include <ctype.h>
#include <time.h>
-#else
-#include <sys/time.h>
-#endif /* Rel4 */
+#include "misc.h"
+#include "optlist.h"
+#include "prototypes.h"
+
+static char *weekday(char *str, int *wday);
+static char *daytime_range(char *str, int *from_min, int *to_min);
/*
- * returns true if game can be played now.
- * Sets the number of minutes until the hours
- * function must be re-called.
+ * Is week day @wday (Sunday is 0) allowed by restriction @days?
+ * If @days is not empty, it lists the allowed week day names. See
+ * weekday() for syntax.
*/
int
-gamehours(time_t now, int *hour)
+is_wday_allowed(int wday, char *days)
{
- extern s_char *game_days, *game_hours;
- extern struct tm *localtime(const time_t *);
- register s_char *bp;
- register struct tm *tm;
- int day;
- int curtime;
- int okday[7];
- int tomorrow;
-
- tm = localtime(&now);
- curtime = tm->tm_min + tm->tm_hour * 60;
- bp = game_days;
- if (*bp != 0) {
- for (day = 0; day < 7; day++)
- okday[day] = 0;
- while (NULL != (bp = kw_parse(CF_WEEKDAY, bp, &day)))
- okday[day] = 1;
- } else {
- for (day = 0; day < 7; day++)
- okday[day] = 1;
- }
- if (!okday[tm->tm_wday])
+ int wd;
+
+ if (!days || !*days)
+ return 1;
+
+ while (NULL != (days = weekday(days, &wd)))
+ if (wd == wday)
+ return 1;
+
+ return 0;
+}
+
+/*
+ * Is day time @dtime allowed by restriction @times?
+ * @dtime is in minutes since midnight.
+ * If @times is not empty, it lists the allowed day time ranges. See
+ * daytime_range() for syntax.
+ */
+int
+is_daytime_allowed(int dtime, char *times)
+{
+ int from, to;
+
+ if (!times || !*times)
+ return 1;
+
+ while (NULL != (times = daytime_range(times, &from, &to)))
+ if (from <= dtime && dtime < to)
+ return 1;
+
+ return 0;
+}
+
+/*
+ * Can the game played at time T?
+ */
+int
+gamehours(time_t t)
+{
+ struct tm *tm;
+
+ tm = localtime(&t);
+ if (!is_wday_allowed(tm->tm_wday, game_days))
return 0;
- bp = game_hours;
- if (*bp != 0) {
- while (NULL != (bp = kw_parse(CF_TIMERANGE, bp, hour)))
- if (curtime >= hour[0] && curtime < hour[1])
- break;
- if (bp == 0)
- return 0;
- } else {
- hour[0] = 0;
- hour[1] = 24 * 60;
+ return is_daytime_allowed(60 * tm->tm_hour + tm->tm_min, game_hours);
+}
+
+/*
+ * Parse weekday name in @str.
+ * On success assign day number (Sunday is 0) to *@wday and return
+ * pointer to first character not parsed.
+ * Else return NULL.
+ * Abbreviated names are recognized, but not single characters.
+ * Initial whitespace is ignored.
+ */
+static char *
+weekday(char *str, int *wday)
+{
+ /*
+ * strptime() format " %a" would do fine, but it's XPG and Windows
+ * doesn't have it. Besides, Empire accepts more abbreviations.
+ */
+ static char *day_name[7] = {
+ "sunday", "monday", "tuesday", "wednesday",
+ "thursday", "friday", "saturday"
+ };
+ int i, j;
+
+ for (; isspace(*str); ++str) ;
+
+ for (i = 0; i < 7; ++i) {
+ j = 0;
+ while (str[j] && tolower(str[j]) == day_name[i][j])
+ ++j;
+ if (j > 1) {
+ *wday = i;
+ return str + j;
+ }
}
- tomorrow = tm->tm_wday + 1;
- if (tomorrow >= 7)
- tomorrow = 0;
- return 1;
+
+ return NULL;
+}
+
+/*
+ * Parse day time in @str.
+ * On success store minutes since midnight in *@min and return pointer
+ * to first character not parsed.
+ * Else return NULL.
+ * Time format is HOUR:MINUTE. Initial whitespace is ignored.
+ */
+static char *
+daytime(char *str, int *min)
+{
+ /*
+ * strptime() format " %H:%M" would do fine, but it's XPG and
+ * Windows doesn't have it.
+ */
+ char *end;
+ unsigned long h, m;
+
+ h = strtoul(str, &end, 10);
+ if (end == str || h > 24)
+ return NULL;
+
+ if (*end++ != ':')
+ return NULL;
+
+ str = end;
+ m = strtoul(str, &end, 10);
+ if (end == str || m > 59)
+ return NULL;
+ else if (h == 24 && m != 0)
+ return NULL;
+
+ *min = 60 * h + m;
+ return end;
+}
+
+/*
+ * Parse a day time range in @str.
+ * On success, store minutes since midnight in *@from_min, *@to_min,
+ * and return pointer to first character not parsed.
+ * Else return NULL.
+ * Format is HOUR:MINUTE-HOUR:MINUTE. Initial whitespace is ignored.
+ */
+static char *
+daytime_range(char *str, int *from_min, int *to_min)
+{
+ char *end;
+
+ end = daytime(str, from_min);
+ if (!end)
+ return NULL;
+ while (isspace(*end)) ++end;
+ if (*end++ != '-')
+ return NULL;
+ return daytime(end, to_min);
}
projects / empserver / blobdiff