118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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*
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* Empire is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* empsched.c: Show the update schedule
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*
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* Known contributors to this file:
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* Markus Armbruster, 2007-2010
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*/
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#include <config.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <time.h>
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#include "optlist.h"
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#include "prototypes.h"
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#include "version.h"
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#define DFLT_N 16
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#define MAX_N 1000
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static void
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print_usage(char *program_name)
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{
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printf("Usage: %s [OPTION]... [FILE]\n"
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"Print the Empire update schedule.\n\n"
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" -e CONFIG-FILE configuration file\n"
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" (default %s)\n"
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" -n NUMBER print at most NUMBER updates (default %d)\n"
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" -h display this help and exit\n"
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" -v display version information and exit\n\n"
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"If FILE is given, print the schedule defined there instead of\n"
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"the current schedule.\n",
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program_name, dflt_econfig, DFLT_N);
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}
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int
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main(int argc, char *argv[])
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{
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char *config_file = NULL;
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char *in_file;
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unsigned long n = DFLT_N;
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time_t sched[MAX_N + 1], anchor;
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int opt, i;
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while ((opt = getopt(argc, argv, "e:n:hv")) != EOF) {
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switch (opt) {
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case 'e':
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config_file = optarg;
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break;
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case 'n':
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n = strtoul(optarg, NULL, 10);
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if (n > MAX_N) {
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fprintf(stderr, "%s: can't print more than %d updates",
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argv[0], MAX_N);
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exit(1);
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}
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break;
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case 'h':
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print_usage(argv[0]);
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exit(0);
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case 'v':
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printf("%s\n\n%s", version, legal);
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exit(0);
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default:
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fprintf(stderr, "Try -h for help.\n");
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exit(1);
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}
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}
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if (argc - optind > 1) {
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fprintf(stderr, "%s: extra operand %s\n", argv[0], argv[optind+1]);
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fprintf(stderr, "Try -h for help.\n");
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exit(1);
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}
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if (emp_config(config_file) < 0)
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exit(1);
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if (!argv[optind])
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in_file = schedulefil;
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else if (!strcmp(argv[optind], "-"))
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in_file = NULL;
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else
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in_file = argv[optind];
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anchor = (time(NULL) + 59) / 60 * 60;
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if (read_schedule(in_file, sched, n + 1, 0, anchor) < 0)
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exit(1);
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for (i = 0; sched[i]; i++)
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printf("%s", ctime(&sched[i]));
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return 0;
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}
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