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
initialize(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
main(int argc,char ** argv)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