1 /* $NetBSD: banner.c,v 1.15 2012/02/29 08:55:25 wiz Exp $ */
2
3 /*
4 * Changes for banner(1)
5 *
6 * @(#)Copyright (c) 1995, Simon J. Gerraty.
7 *
8 * This is free software. It comes with NO WARRANTY.
9 * Permission to use, modify and distribute this source code
10 * is granted subject to the following conditions.
11 * 1/ that the above copyright notice and this notice
12 * are preserved in all copies and that due credit be given
13 * to the author.
14 * 2/ that any changes to this code are clearly commented
15 * as such so that the author does not get blamed for bugs
16 * other than his own.
17 *
18 * Please send copies of changes and bug-fixes to:
19 * sjg@zen.void.oz.au
20 */
21
22 /*
23 * Copyright (c) 1983, 1993
24 * The Regents of the University of California. All rights reserved.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the above copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 * 3. Neither the name of the University nor the names of its contributors
35 * may be used to endorse or promote products derived from this software
36 * without specific prior written permission.
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
41 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 */
50
51 #include <sys/cdefs.h>
52 #ifndef lint
53 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\
54 The Regents of the University of California. All rights reserved.");
55 #endif /* not lint */
56
57 #ifndef lint
58 #if 0
59 static char sccsid[] = "@(#)printjob.c 8.2 (Berkeley) 4/16/94";
60 #else
61 __RCSID("$NetBSD: banner.c,v 1.15 2012/02/29 08:55:25 wiz Exp $");
62 #endif
63 #endif /* not lint */
64
65 #include <stdio.h>
66 #include <stdlib.h>
67 #include <string.h>
68 #include <unistd.h>
69
70 #include "banner.h"
71
72 static long PW = LINELEN;
73 /*
74 * <sjg> lpd makes chars out of the letter in question.
75 * the results are somewhat mixed. Sticking to '#' as
76 * banner(1) does is more consistent.
77 */
78 static int ForeGnd = '#';
79 static int BackGnd = ' ';
80 static int Drop = 0; /* 3 for the LPD font */
81
82 static int dropit (int);
83 static void scan_out (int, char *, int);
84 static char *scnline (int, char *, int);
85 __dead static void usage(void);
86
87 /* the char gen code below is lifted from lpd */
88
89 static char *
scnline(int key,char * p,int c)90 scnline(int key, char *p, int c)
91 {
92 int scnwidth;
93
94 if (ForeGnd)
95 c = ForeGnd;
96
97 for (scnwidth = WIDTH; --scnwidth;) {
98 key <<= 1;
99 *p++ = key & 0200 ? c : BackGnd;
100 }
101 return (p);
102 }
103
104 #define TRC(q) (((q)-' ')&0177)
105
106
107 static int
dropit(int c)108 dropit(int c)
109 {
110 switch(c) {
111
112 case TRC('_'):
113 case TRC(';'):
114 case TRC(','):
115 case TRC('g'):
116 case TRC('j'):
117 case TRC('p'):
118 case TRC('q'):
119 case TRC('y'):
120 return (Drop);
121
122 default:
123 return (0);
124 }
125 }
126
127 static void
scan_out(int scfd,char * scsp,int dlm)128 scan_out(int scfd, char *scsp, int dlm)
129 {
130 char *strp;
131 int nchrs, j;
132 char outbuf[LINELEN+1], *sp, c, cc;
133 int d, scnhgt;
134
135 for (scnhgt = 0; scnhgt++ < HEIGHT+Drop; ) {
136 strp = &outbuf[0];
137 if (BackGnd != ' ')
138 *strp++ = BackGnd;
139 sp = scsp;
140 for (nchrs = 0; *sp != dlm && *sp != '\0'; ) {
141 cc = *sp++;
142 if(cc < ' ' || ((int)cc) >= 0x7f)
143 cc = ' ';
144 d = dropit(c = TRC(cc));
145 if ((!d && scnhgt > HEIGHT) || (scnhgt <= Drop && d))
146 for (j = WIDTH; --j;)
147 *strp++ = BackGnd;
148 else if (Drop == 0)
149 strp = scnline(
150 scnkey_def[(int)c][scnhgt-1-d], strp, cc);
151 else
152 strp = scnline(
153 scnkey_lpd[(int)c][scnhgt-1-d], strp, cc);
154 if (nchrs++ >= PW/(WIDTH+1)-1)
155 break;
156 *strp++ = BackGnd;
157 }
158 if (BackGnd != ' ')
159 *strp++ = BackGnd;
160 else {
161 while (*--strp == ' ' && strp >= outbuf)
162 ;
163 strp++;
164 }
165 *strp++ = '\n';
166 (void) write(scfd, outbuf, strp-outbuf);
167 }
168 }
169
170 /*
171 * for each word, print up to 10 chars in big letters.
172 */
173 int
main(int argc,char ** argv)174 main(int argc, char **argv)
175 {
176 char word[10+1]; /* strings limited to 10 chars */
177 int c;
178
179 while ((c = getopt(argc, argv, "b:f:l")) != -1) {
180 switch (c) {
181 case 'f':
182 if (*optarg == '-')
183 ForeGnd = 0;
184 else
185 ForeGnd = *optarg;
186 break;
187 case 'b':
188 BackGnd = *optarg;
189 break;
190 case 'l':
191 Drop = 3; /* for LPD font */
192 break;
193 default:
194 usage();
195 }
196 }
197
198 for (; optind < argc; ++optind) {
199 (void)strlcpy(word, argv[optind], sizeof (word));
200 scan_out(STDOUT_FILENO, word, '\0');
201 }
202 exit(0);
203 }
204
205 static void
usage(void)206 usage(void)
207 {
208 fprintf(stderr, "usage: %s [-l] [-b bg] [-f fg] string ...\n",
209 getprogname());
210 exit(1);
211 }
212