1 /* $NetBSD: ppt.c,v 1.18 2009/08/12 08:24:20 dholland 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1988, 1993\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)ppt.c 8.1 (Berkeley) 5/31/93"; 41 #else 42 __RCSID("$NetBSD: ppt.c,v 1.18 2009/08/12 08:24:20 dholland Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <err.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 52 #define EDGE "___________" 53 54 static void putppt(int); 55 static int getppt(const char *); 56 57 static void 58 usage(void) 59 { 60 extern char *__progname; 61 fprintf(stderr, "usage: %s [-d] [string ...]\n", __progname); 62 exit(1); 63 } 64 65 int 66 main(int argc, char **argv) 67 { 68 char *p, buf[132]; 69 int c, start, neednl, dflag; 70 71 /* Revoke setgid privileges */ 72 setgid(getgid()); 73 74 dflag = 0; 75 while ((c = getopt(argc, argv, "dh")) != -1) 76 switch(c) { 77 case 'd': 78 dflag = 1; 79 break; 80 case 'h': 81 case '?': 82 default: 83 usage(); 84 } 85 argc -= optind; 86 argv += optind; 87 88 if (dflag) { 89 if (argc > 0) 90 usage(); 91 92 start = 0; 93 neednl = 0; 94 while (fgets(buf, sizeof(buf), stdin) != NULL) { 95 c = getppt(buf); 96 if (c < 0) { 97 if (start) { 98 /* lost sync? */ 99 if (neednl) 100 putchar('\n'); 101 exit(0); 102 } else 103 continue; 104 } 105 start = 1; 106 putchar(c); 107 neednl = (c != '\n'); 108 } 109 if (!feof(stdin)) 110 err(1, "fgets"); 111 if (neednl) 112 putchar('\n'); 113 } else { 114 (void) puts(EDGE); 115 if (argc > 0) 116 while ((p = *argv++)) { 117 for (; *p; ++p) 118 putppt((int)*p); 119 if ((*(argv))) 120 putppt((int)' '); 121 } 122 else while ((c = getchar()) != EOF) 123 putppt(c); 124 (void) puts(EDGE); 125 } 126 exit(0); 127 } 128 129 static void 130 putppt(c) 131 int c; 132 { 133 int i; 134 135 (void) putchar('|'); 136 for (i = 7; i >= 0; i--) { 137 if (i == 2) 138 (void) putchar('.'); /* feed hole */ 139 if ((c&(1<<i)) != 0) 140 (void) putchar('o'); 141 else 142 (void) putchar(' '); 143 } 144 (void) putchar('|'); 145 (void) putchar('\n'); 146 } 147 148 static int 149 getppt(const char *buf) 150 { 151 const char *p = strchr(buf, '.'); 152 int c; 153 154 if (p == NULL) 155 return (-1); 156 157 c = 0; 158 if (p[ 3] != ' ') 159 c |= 0001; 160 if (p[ 2] != ' ') 161 c |= 0002; 162 if (p[ 1] != ' ') 163 c |= 0004; 164 if (p[-1] != ' ') 165 c |= 0010; 166 if (p[-2] != ' ') 167 c |= 0020; 168 if (p[-3] != ' ') 169 c |= 0040; 170 if (p[-4] != ' ') 171 c |= 0100; 172 if (p[-5] != ' ') 173 c |= 0200; 174 175 return (c); 176 } 177