1 /* $NetBSD: main.c,v 1.26 2010/08/06 09:14:40 dholland 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/28/95"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.26 2010/08/06 09:14:40 dholland Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <fcntl.h> 49 #include <pwd.h> 50 #include <setjmp.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <time.h> 55 #include <unistd.h> 56 #include "extern.h" 57 #include "pathnames.h" 58 #include "restart.h" 59 60 static void 61 initialize(void) 62 { 63 int fd; 64 const char *name; 65 struct passwd *pw; 66 char *s; 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 if (chdir(_PATH_SAILDIR) < 0) { 78 err(1, "%s", _PATH_SAILDIR); 79 } 80 81 srandom((u_long)time(NULL)); 82 83 name = getenv("SAILNAME"); 84 if (name != NULL && *name != '\0') { 85 strlcpy(myname, name, sizeof(myname)); 86 } else { 87 pw = getpwuid(getuid()); 88 if (pw != NULL) { 89 strlcpy(myname, pw->pw_gecos, sizeof(myname)); 90 /* trim to just the realname */ 91 s = strchr(myname, ','); 92 if (s != NULL) { 93 *s = '\0'; 94 } 95 /* use just the first name */ 96 s = strchr(myname, ' '); 97 if (s != NULL) { 98 *s = '\0'; 99 } 100 /* should really do &-expansion properly */ 101 if (!strcmp(myname, "&")) { 102 strlcpy(myname, pw->pw_name, sizeof(myname)); 103 myname[0] = toupper((unsigned char)myname[0]); 104 } 105 } 106 } 107 if (*myname == '\0') { 108 strlcpy(myname, "Anonymous", sizeof(myname)); 109 } 110 } 111 112 int 113 main(int argc, char **argv) 114 { 115 char *p; 116 int a, i; 117 118 initialize(); 119 120 if ((p = strrchr(*argv, '/')) != NULL) 121 p++; 122 else 123 p = *argv; 124 125 if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0) 126 mode = MODE_DRIVER; 127 else if (strcmp(p, "sail.log") == 0) 128 mode = MODE_LOGGER; 129 else 130 mode = MODE_PLAYER; 131 132 while ((a = getopt(argc, argv, "dsxlb")) != -1) 133 switch (a) { 134 case 'd': 135 mode = MODE_DRIVER; 136 break; 137 case 's': 138 mode = MODE_LOGGER; 139 break; 140 case 'x': 141 randomize = true; 142 break; 143 case 'l': 144 longfmt = true; 145 break; 146 case 'b': 147 nobells = true; 148 break; 149 default: 150 errx(1, "Usage: %s [-bdlsx] [scenario-number]", p); 151 } 152 153 argc -= optind; 154 argv += optind; 155 156 if (*argv) 157 game = atoi(*argv); 158 else 159 game = -1; 160 161 if ((i = setjmp(restart)) != 0) 162 mode = i; 163 164 switch (mode) { 165 case MODE_PLAYER: 166 initscreen(); 167 startup(); 168 cleanupscreen(); 169 return 0; 170 case MODE_DRIVER: 171 return dr_main(); 172 case MODE_LOGGER: 173 return lo_main(); 174 default: 175 warnx("Unknown mode %d", mode); 176 abort(); 177 } 178 /*NOTREACHED*/ 179 } 180