1 /* $NetBSD: ppt.c,v 1.16 2004/01/27 20:30:30 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. 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\n\ 35 The Regents of the University of California. All rights reserved.\n"); 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 1.16 2004/01/27 20:30:30 jsm 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 void usage(void); 55 int main(int, char *[]); 56 static void putppt(int); 57 int getppt(const char *); 58 59 void 60 usage(void) 61 { 62 extern char *__progname; 63 fprintf(stderr, "usage: %s [-d] [string ...]\n", __progname); 64 exit(1); 65 } 66 67 int 68 main(argc, argv) 69 int argc; 70 char **argv; 71 { 72 char *p, buf[132]; 73 int c, start, neednl, dflag; 74 75 /* Revoke setgid privileges */ 76 setgid(getgid()); 77 78 dflag = 0; 79 while ((c = getopt(argc, argv, "dh")) != -1) 80 switch(c) { 81 case 'd': 82 dflag = 1; 83 break; 84 case 'h': 85 case '?': 86 default: 87 usage(); 88 } 89 argc -= optind; 90 argv += optind; 91 92 if (dflag) { 93 if (argc > 0) 94 usage(); 95 96 start = 0; 97 neednl = 0; 98 while (fgets(buf, sizeof(buf), stdin) != NULL) { 99 c = getppt(buf); 100 if (c < 0) { 101 if (start) { 102 /* lost sync? */ 103 if (neednl) 104 putchar('\n'); 105 exit(0); 106 } else 107 continue; 108 } 109 start = 1; 110 putchar(c); 111 neednl = (c != '\n'); 112 } 113 if (!feof(stdin)) 114 err(1, "fgets"); 115 if (neednl) 116 putchar('\n'); 117 } else { 118 (void) puts(EDGE); 119 if (argc > 0) 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 } 181