1 /* $OpenBSD: main.c,v 1.11 2016/01/08 20:26:33 mestre 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 <err.h>
34 #include <fcntl.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <unistd.h>
38
39 #include "extern.h"
40
41 int
main(int argc,char ** argv)42 main(int argc, char **argv)
43 {
44 extern char *__progname;
45 char *p;
46 int i;
47 int fd;
48
49 gid = getgid();
50 egid = getegid();
51 setegid(gid);
52
53 fd = open("/dev/null", O_RDONLY);
54 if (fd < 3)
55 return 1;
56 close(fd);
57
58 p = __progname;
59 if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0)
60 mode = MODE_DRIVER;
61 else if (strcmp(p, "sail.log") == 0)
62 mode = MODE_LOGGER;
63 else
64 mode = MODE_PLAYER;
65 while ((p = *++argv) && *p == '-')
66 switch (p[1]) {
67 case 'd':
68 mode = MODE_DRIVER;
69 break;
70 case 's':
71 mode = MODE_LOGGER;
72 break;
73 case 'D':
74 debug++;
75 break;
76 case 'x':
77 randomize++;
78 break;
79 case 'l':
80 longfmt++;
81 break;
82 case 'b':
83 nobells++;
84 break;
85 default:
86 errx(1, "unknown flag %s", p);
87 }
88 if (*argv)
89 game = atoi(*argv);
90 else
91 game = -1;
92 if ((i = setjmp(restart)))
93 mode = i;
94 switch (mode) {
95 case MODE_PLAYER:
96 pl_main();
97 case MODE_DRIVER:
98 return dr_main();
99 case MODE_LOGGER:
100 return lo_main();
101 default:
102 warnx("Unknown mode %d", mode);
103 abort();
104 }
105 }
106