1 /* $NetBSD: asa.c,v 1.11 1997/09/20 14:55:00 lukem Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 1993,94 Winning Strategies, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Winning Strategies, Inc. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #if 0 37 #ifndef lint 38 __RCSID("$NetBSD: asa.c,v 1.11 1997/09/20 14:55:00 lukem Exp $"); 39 #endif 40 #endif 41 __FBSDID("$FreeBSD$"); 42 43 #include <err.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 static void asa(FILE *); 50 static void usage(void) __dead2; 51 52 int 53 main(int argc, char *argv[]) 54 { 55 int ch, exval; 56 FILE *fp; 57 const char *fn; 58 59 while ((ch = getopt(argc, argv, "")) != -1) { 60 switch (ch) { 61 case '?': 62 default: 63 usage(); 64 /*NOTREACHED*/ 65 } 66 } 67 argc -= optind; 68 argv += optind; 69 70 exval = 0; 71 if (argc == 0) 72 asa(stdin); 73 else { 74 while ((fn = *argv++) != NULL) { 75 if (strcmp(fn, "-") == 0) { 76 asa(stdin); 77 } else { 78 if ((fp = fopen(fn, "r")) == NULL) { 79 warn("%s", fn); 80 exval = 1; 81 continue; 82 } 83 asa(fp); 84 fclose(fp); 85 } 86 } 87 } 88 89 if (fflush(stdout) != 0) 90 err(1, "stdout"); 91 92 exit(exval); 93 } 94 95 static void 96 usage(void) 97 { 98 99 fprintf(stderr, "usage: asa [file ...]\n"); 100 exit(1); 101 } 102 103 static void 104 asa(FILE *f) 105 { 106 size_t len; 107 char *buf; 108 109 if ((buf = fgetln(f, &len)) != NULL) { 110 if (buf[len - 1] == '\n') 111 buf[--len] = '\0'; 112 /* special case the first line */ 113 switch (buf[0]) { 114 case '0': 115 putchar('\n'); 116 break; 117 case '1': 118 putchar('\f'); 119 break; 120 } 121 122 if (len > 1 && buf[0] && buf[1]) 123 printf("%.*s", (int)(len - 1), buf + 1); 124 125 while ((buf = fgetln(f, &len)) != NULL) { 126 if (buf[len - 1] == '\n') 127 buf[--len] = '\0'; 128 switch (buf[0]) { 129 default: 130 case ' ': 131 putchar('\n'); 132 break; 133 case '0': 134 putchar('\n'); 135 putchar('\n'); 136 break; 137 case '1': 138 putchar('\f'); 139 break; 140 case '+': 141 putchar('\r'); 142 break; 143 } 144 145 if (len > 1 && buf[0] && buf[1]) 146 printf("%.*s", (int)(len - 1), buf + 1); 147 } 148 149 putchar('\n'); 150 } 151 152 if (ferror(stdout) != 0) 153 err(1, "stdout"); 154 } 155