]> git.cameronkatri.com Git - bsdgames-darwin.git/blob - ppt/ppt.c
Security improvements for games (largely from or inspired by OpenBSD).
[bsdgames-darwin.git] / ppt / ppt.c
1 /* $NetBSD: ppt.c,v 1.6 1999/09/12 09:02:22 jsm Exp $ */
2
3 /*
4 * Copyright (c) 1988, 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) 1988, 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[] = "@(#)ppt.c 8.1 (Berkeley) 5/31/93";
45 #else
46 __RCSID("$NetBSD: ppt.c,v 1.6 1999/09/12 09:02:22 jsm Exp $");
47 #endif
48 #endif /* not lint */
49
50 #include <stdio.h>
51 #include <unistd.h>
52
53 int main __P((int, char *[]));
54 static void putppt __P((int));
55
56 int
57 main(argc, argv)
58 int argc;
59 char **argv;
60 {
61 int c;
62 char *p;
63
64 /* Revoke setgid privileges */
65 setregid(getgid(), getgid());
66
67 (void) puts("___________");
68 if (argc > 1)
69 while ((p = *++argv) != NULL)
70 for (; *p; ++p)
71 putppt((int)*p);
72 else while ((c = getchar()) != EOF)
73 putppt(c);
74 (void) puts("___________");
75 exit(0);
76 }
77
78 static void
79 putppt(c)
80 int c;
81 {
82 int i;
83
84 (void) putchar('|');
85 for (i = 7; i >= 0; i--) {
86 if (i == 2)
87 (void) putchar('.'); /* feed hole */
88 if ((c&(1<<i)) != 0)
89 (void) putchar('o');
90 else
91 (void) putchar(' ');
92 }
93 (void) putchar('|');
94 (void) putchar('\n');
95 }