1 /* $OpenBSD: main.c,v 1.8 2014/03/11 07:42:55 guenther Exp $ */ 2 /* $NetBSD: main.c,v 1.3 1995/04/22 10:37:01 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include "extern.h" 34 #include <fcntl.h> 35 #include <unistd.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <err.h> 39 40 /*ARGSUSED*/ 41 int 42 main(argc, argv) 43 int argc; 44 char **argv; 45 { 46 char *p; 47 int i; 48 int fd; 49 50 gid = getgid(); 51 egid = getegid(); 52 setegid(gid); 53 54 fd = open("/dev/null", O_RDONLY); 55 if (fd < 3) 56 exit(1); 57 close(fd); 58 59 if ((p = strrchr(*argv, '/'))) 60 p++; 61 else 62 p = *argv; 63 if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0) 64 mode = MODE_DRIVER; 65 else if (strcmp(p, "sail.log") == 0) 66 mode = MODE_LOGGER; 67 else 68 mode = MODE_PLAYER; 69 while ((p = *++argv) && *p == '-') 70 switch (p[1]) { 71 case 'd': 72 mode = MODE_DRIVER; 73 break; 74 case 's': 75 mode = MODE_LOGGER; 76 break; 77 case 'D': 78 debug++; 79 break; 80 case 'x': 81 randomize++; 82 break; 83 case 'l': 84 longfmt++; 85 break; 86 case 'b': 87 nobells++; 88 break; 89 default: 90 errx(1, "unknown flag %s", p); 91 } 92 if (*argv) 93 game = atoi(*argv); 94 else 95 game = -1; 96 if ((i = setjmp(restart))) 97 mode = i; 98 switch (mode) { 99 case MODE_PLAYER: 100 pl_main(); 101 case MODE_DRIVER: 102 return dr_main(); 103 case MODE_LOGGER: 104 return lo_main(); 105 default: 106 warnx("Unknown mode %d", mode); 107 abort(); 108 } 109 } 110