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main.c revision 1.20 
      1 /*	$NetBSD: main.c,v 1.20 2001/08/29 18:23:44 jsm Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
     39 	The Regents of the University of California.  All rights reserved.\n");
     40 #endif /* not lint */
     41 
     42 #ifndef lint
     43 #if 0
     44 static char sccsid[] = "@(#)main.c	8.2 (Berkeley) 4/28/95";
     45 #else
     46 __RCSID("$NetBSD: main.c,v 1.20 2001/08/29 18:23:44 jsm Exp $");
     47 #endif
     48 #endif /* not lint */
     49 
     50 #include <fcntl.h>
     51 #include <setjmp.h>
     52 #include <stdio.h>
     53 #include <stdlib.h>
     54 #include <string.h>
     55 #include <time.h>
     56 #include <unistd.h>
     57 #include "extern.h"
     58 #include "restart.h"
     59 
     60 int
     61 main(int argc, char **argv)
     62 {
     63 	char *p;
     64 	int a,i;
     65 	int fd;
     66 
     67 	gid = getgid();
     68 	egid = getegid();
     69 	setegid(gid);
     70 
     71 	fd = open("/dev/null", O_RDONLY);
     72 	if (fd < 3)
     73 		exit(1);
     74 	close(fd);
     75 
     76 	srandom((u_long)time(NULL));
     77 
     78 	if ((p = strrchr(*argv, '/')) != NULL)
     79 		p++;
     80 	else
     81 		p = *argv;
     82 
     83 	if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0)
     84 		mode = MODE_DRIVER;
     85 	else if (strcmp(p, "sail.log") == 0)
     86 		mode = MODE_LOGGER;
     87 	else
     88 		mode = MODE_PLAYER;
     89 
     90 	while ((a = getopt(argc, argv, "dsxlb")) != -1)
     91 		switch (a) {
     92 		case 'd':
     93 			mode = MODE_DRIVER;
     94 			break;
     95 		case 's':
     96 			mode = MODE_LOGGER;
     97 			break;
     98 		case 'x':
     99 			randomize++;
    100 			break;
    101 		case 'l':
    102 			longfmt++;
    103 			break;
    104 		case 'b':
    105 			nobells++;
    106 			break;
    107 		default:
    108 			fprintf(stderr, "SAIL: Unknown flag %s.\n", p);
    109 			exit(1);
    110 		}
    111 
    112 	argc -= optind;
    113 	argv += optind;
    114 
    115 	if (*argv)
    116 		game = atoi(*argv);
    117 	else
    118 		game = -1;
    119 
    120 	if ((i = setjmp(restart)) != 0)
    121 		mode = i;
    122 
    123 	switch (mode) {
    124 	case MODE_PLAYER:
    125 		return pl_main();
    126 	case MODE_DRIVER:
    127 		return dr_main();
    128 	case MODE_LOGGER:
    129 		return lo_main();
    130 	default:
    131 		fprintf(stderr, "SAIL: Unknown mode %d.\n", mode);
    132 		abort();
    133 	}
    134 	/*NOTREACHED*/
    135 }
    136