sail/main.c

   1 /*      $NetBSD: main.c,v 1.7 2000/02/09 22:27:56 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 1.7 2000/02/09 22:27:56 jsm 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 __P((int, char **));
  57
  58 /*ARGSUSED*/
  59 int
  60 main(argc, argv)
  61         int argc;
  62         char **argv;
  63 {
  64         char *p;
  65         int i;
  66         int fd;
  67
  68         gid = getgid();
  69         egid = getegid();
  70         setegid(gid);
  71
  72         fd = open("/dev/null", O_RDONLY);
  73         if (fd < 3)
  74                 exit(1);
  75         close(fd);
  76
  77         (void) srand(getpid());
  78         if ((p = strrchr(*argv, '/')) != NULL)
  79                 p++;
  80         else
  81                 p = *argv;
  82         if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0)
  83                 mode = MODE_DRIVER;
  84         else if (strcmp(p, "sail.log") == 0)
  85                 mode = MODE_LOGGER;
  86         else
  87                 mode = MODE_PLAYER;
  88         while ((p = *++argv) && *p == '-')
  89                 switch (p[1]) {
  90                 case 'd':
  91                         mode = MODE_DRIVER;
  92                         break;
  93                 case 's':
  94                         mode = MODE_LOGGER;
  95                         break;
  96                 case 'D':
  97                         debug++;
  98                         break;
  99                 case 'x':
 100                         randomize++;
 101                         break;
 102                 case 'l':
 103                         longfmt++;
 104                         break;
 105                 case 'b':
 106                         nobells++;
 107                         break;
 108                 default:
 109                         fprintf(stderr, "SAIL: Unknown flag %s.\n", p);
 110                         exit(1);
 111                 }
 112         if (*argv)
 113                 game = atoi(*argv);
 114         else
 115                 game = -1;
 116         if ((i = setjmp(restart)) != 0)
 117                 mode = i;
 118         switch (mode) {
 119         case MODE_PLAYER:
 120                 return pl_main();
 121         case MODE_DRIVER:
 122                 return dr_main();
 123         case MODE_LOGGER:
 124                 return lo_main();
 125         default:
 126                 fprintf(stderr, "SAIL: Unknown mode %d.\n", mode);
 127                 abort();
 128         }
 129         /*NOTREACHED*/
 130 }