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1 /* $NetBSD: ppt.c,v 1.13 2002/11/26 21:39:18 kim 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 1.13 2002/11/26 21:39:18 kim Exp $");
47 #endif
48 #endif /* not lint */
49
50 #include <err.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55
56 #define EDGE "___________"
57
58 void usage __P((void));
59 int main __P((int, char *[]));
60 static void putppt __P((int));
61 int getppt __P((const char *));
62
63 void
64 usage(void)
65 {
66 extern char *__progname;
67 fprintf(stderr, "usage: %s [-d] [string ...]\n", __progname);
68 exit(1);
69 }
70
71 int
72 main(argc, argv)
73 int argc;
74 char **argv;
75 {
76 char *p, buf[132];
77 int c, start, dflag;
78
79 /* Revoke setgid privileges */
80 setgid(getgid());
81
82 dflag = 0;
83 while ((c = getopt(argc, argv, "dh")) != -1)
84 switch(c) {
85 case 'd':
86 dflag = 1;
87 break;
88 case 'h':
89 case '?':
90 default:
91 usage();
92 }
93 argc -= optind;
94 argv += optind;
95
96 if (dflag) {
97 if (argc > 0)
98 usage();
99
100 start = 0;
101 while (fgets(buf, sizeof(buf), stdin) != NULL) {
102 c = getppt(buf);
103 if (c < 0) {
104 if (start) {
105 /* lost sync */
106 putchar('\n');
107 exit(0);
108 } else
109 continue;
110 }
111 start = 1;
112 putchar(c);
113 }
114 if (!feof(stdin))
115 err(1, "fgets");
116 putchar('\n');
117 } else {
118 (void) puts(EDGE);
119 if (argc > 1)
120 while ((p = *argv++)) {
121 for (; *p; ++p)
122 putppt((int)*p);
123 if ((*(argv)))
124 putppt((int)' ');
125 }
126 else while ((c = getchar()) != EOF)
127 putppt(c);
128 (void) puts(EDGE);
129 }
130 exit(0);
131 }
132
133 static void
134 putppt(c)
135 int c;
136 {
137 int i;
138
139 (void) putchar('|');
140 for (i = 7; i >= 0; i--) {
141 if (i == 2)
142 (void) putchar('.'); /* feed hole */
143 if ((c&(1<<i)) != 0)
144 (void) putchar('o');
145 else
146 (void) putchar(' ');
147 }
148 (void) putchar('|');
149 (void) putchar('\n');
150 }
151
152 int
153 getppt(const char *buf)
154 {
155 const char *p = strchr(buf, '.');
156 int c;
157
158 if (p == NULL)
159 return (-1);
160
161 c = 0;
162 if (p[ 3] != ' ')
163 c |= 0001;
164 if (p[ 2] != ' ')
165 c |= 0002;
166 if (p[ 1] != ' ')
167 c |= 0004;
168 if (p[-1] != ' ')
169 c |= 0010;
170 if (p[-2] != ' ')
171 c |= 0020;
172 if (p[-3] != ' ')
173 c |= 0040;
174 if (p[-4] != ' ')
175 c |= 0100;
176 if (p[-5] != ' ')
177 c |= 0200;
178
179 return (c);
180 }