1 /* $OpenBSD: banner.c,v 1.8 2003/06/10 22:20:44 deraadt Exp $ */ 2 /* $NetBSD: banner.c,v 1.2 1995/04/09 06:00:15 cgd Exp $ */ 3 4 /* 5 * Changes for banner(1) 6 * 7 * @(#)Copyright (c) 1995, Simon J. Gerraty. 8 * 9 * This is free software. It comes with NO WARRANTY. 10 * Permission to use, modify and distribute this source code 11 * is granted subject to the following conditions. 12 * 1/ that the above copyright notice and this notice 13 * are preserved in all copies and that due credit be given 14 * to the author. 15 * 2/ that any changes to this code are clearly commented 16 * as such so that the author does not get blamed for bugs 17 * other than his own. 18 * 19 * Please send copies of changes and bug-fixes to: 20 * sjg@zen.void.oz.au 21 */ 22 23 /* 24 * Copyright (c) 1983, 1993 25 * The Regents of the University of California. All rights reserved. 26 * 27 * Redistribution and use in source and binary forms, with or without 28 * modification, are permitted provided that the following conditions 29 * are met: 30 * 1. Redistributions of source code must retain the above copyright 31 * notice, this list of conditions and the following disclaimer. 32 * 2. Redistributions in binary form must reproduce the above copyright 33 * notice, this list of conditions and the following disclaimer in the 34 * documentation and/or other materials provided with the distribution. 35 * 3. Neither the name of the University nor the names of its contributors 36 * may be used to endorse or promote products derived from this software 37 * without specific prior written permission. 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 40 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 42 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 43 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 44 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 45 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 47 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 48 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 49 * SUCH DAMAGE. 50 */ 51 #ifndef lint 52 static const char copyright[] = 53 "@(#) Copyright (c) 1983, 1993\n\ 54 The Regents of the University of California. All rights reserved.\n"; 55 #if 0 56 static char sccsid[] = "@(#)printjob.c 8.2 (Berkeley) 4/16/94"; 57 #else 58 static const char rcsid[] = "$OpenBSD: banner.c,v 1.8 2003/06/10 22:20:44 deraadt Exp $"; 59 #endif 60 #endif /* not lint */ 61 62 #include <stdio.h> 63 #include <unistd.h> 64 #include <stdlib.h> 65 #include <string.h> 66 67 #include "banner.h" 68 69 static long PW = LINELEN; 70 71 /* the char gen code below is lifted from lpd */ 72 73 static char * 74 scnline(int key, char *p, int c) 75 { 76 int scnwidth; 77 78 /* 79 * <sjg> lpd makes chars out of the letter in question. 80 * the results are somewhat mixed. Sticking to '#' as 81 * banner(1) does is more consistent. 82 */ 83 #ifndef NOHASH_ONLY 84 c = '#'; 85 #endif 86 87 for (scnwidth = WIDTH; --scnwidth;) { 88 key <<= 1; 89 *p++ = key & 0200 ? c : BACKGND; 90 } 91 return (p); 92 } 93 94 #define TRC(q) (((q)-' ')&0177) 95 96 97 static int 98 dropit(int c) 99 { 100 switch(c) { 101 102 case TRC('_'): 103 case TRC(';'): 104 case TRC(','): 105 case TRC('g'): 106 case TRC('j'): 107 case TRC('p'): 108 case TRC('q'): 109 case TRC('y'): 110 return (DROP); 111 112 default: 113 return (0); 114 } 115 } 116 117 static void 118 scan_out(int scfd, char *scsp, int dlm) 119 { 120 char *strp; 121 int nchrs, j; 122 char outbuf[LINELEN+1], *sp, c, cc; 123 int d, scnhgt; 124 extern char scnkey[][HEIGHT]; /* in lpdchar.c */ 125 126 for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) { 127 strp = &outbuf[0]; 128 sp = scsp; 129 for (nchrs = 0; *sp != dlm && *sp != '\0'; ) { 130 cc = *sp++; 131 if ((unsigned char)cc < ' ' || 132 (unsigned char)cc > 0x7f) 133 cc = INVALID; 134 135 c = TRC(cc); 136 d = dropit(c); 137 if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d)) 138 for (j = WIDTH; --j;) 139 *strp++ = BACKGND; 140 else 141 strp = scnline(scnkey[(int)c][scnhgt-1-d], strp, cc); 142 if (nchrs++ >= PW/(WIDTH+1)-1) 143 break; 144 *strp++ = BACKGND; 145 #ifdef LPD_CHSET /* <sjg> */ 146 *strp++ = BACKGND; 147 #endif 148 } 149 while (*--strp == BACKGND && strp >= outbuf) 150 ; 151 strp++; 152 *strp++ = '\n'; 153 (void) write(scfd, outbuf, strp-outbuf); 154 } 155 } 156 157 /* 158 * for each word, print up to 10 chars in big letters. 159 */ 160 int 161 main(int argc, char *argv[]) 162 { 163 char word[10+1]; /* strings limited to 10 chars */ 164 165 while (*++argv) { 166 (void)strlcpy(word, *argv, sizeof (word)); 167 scan_out(1, word, '\0'); 168 } 169 exit(0); 170 } 171