sail/main.c

   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 }