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main.c revision 1.8 
      1 /*	$NetBSD: main.c,v 1.8 2000/11/30 21:29:32 jwise 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 1.8 2000/11/30 21:29:32 jwise Exp $");
     47 #endif
     48 #endif /* not lint */
     49 
     50 #include "extern.h"
     51 #include <fcntl.h>
     52 #include <unistd.h>
     53 #include <stdlib.h>
     54 #include <string.h>
     55 
     56 int main (int, char **);
     57 
     58 /*ARGSUSED*/
     59 int
     60 main(int argc, char **argv)
     61 {
     62 	char *p;
     63 	int i;
     64 	int fd;
     65 
     66 	gid = getgid();
     67 	egid = getegid();
     68 	setegid(gid);
     69 
     70 	fd = open("/dev/null", O_RDONLY);
     71 	if (fd < 3)
     72 		exit(1);
     73 	close(fd);
     74 
     75 	(void) srand(getpid());
     76 	if ((p = strrchr(*argv, '/')) != NULL)
     77 		p++;
     78 	else
     79 		p = *argv;
     80 	if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0)
     81 		mode = MODE_DRIVER;
     82 	else if (strcmp(p, "sail.log") == 0)
     83 		mode = MODE_LOGGER;
     84 	else
     85 		mode = MODE_PLAYER;
     86 	while ((p = *++argv) && *p == '-')
     87 		switch (p[1]) {
     88 		case 'd':
     89 			mode = MODE_DRIVER;
     90 			break;
     91 		case 's':
     92 			mode = MODE_LOGGER;
     93 			break;
     94 		case 'D':
     95 			debug++;
     96 			break;
     97 		case 'x':
     98 			randomize++;
     99 			break;
    100 		case 'l':
    101 			longfmt++;
    102 			break;
    103 		case 'b':
    104 			nobells++;
    105 			break;
    106 		default:
    107 			fprintf(stderr, "SAIL: Unknown flag %s.\n", p);
    108 			exit(1);
    109 		}
    110 	if (*argv)
    111 		game = atoi(*argv);
    112 	else
    113 		game = -1;
    114 	if ((i = setjmp(restart)) != 0)
    115 		mode = i;
    116 	switch (mode) {
    117 	case MODE_PLAYER:
    118 		return pl_main();
    119 	case MODE_DRIVER:
    120 		return dr_main();
    121 	case MODE_LOGGER:
    122 		return lo_main();
    123 	default:
    124 		fprintf(stderr, "SAIL: Unknown mode %d.\n", mode);
    125 		abort();
    126 	}
    127 	/*NOTREACHED*/
    128 }
    129