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 #include <err.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 static void asa(FILE *); 48 static void usage(void) __dead2; 49 50 int 51 main(int argc, char *argv[]) 52 { 53 int ch, exval; 54 FILE *fp; 55 const char *fn; 56 57 while ((ch = getopt(argc, argv, "")) != -1) { 58 switch (ch) { 59 case '?': 60 default: 61 usage(); 62 /*NOTREACHED*/ 63 } 64 } 65 argc -= optind; 66 argv += optind; 67 68 exval = 0; 69 if (argc == 0) 70 asa(stdin); 71 else { 72 while ((fn = *argv++) != NULL) { 73 if (strcmp(fn, "-") == 0) { 74 asa(stdin); 75 } else { 76 if ((fp = fopen(fn, "r")) == NULL) { 77 warn("%s", fn); 78 exval = 1; 79 continue; 80 } 81 asa(fp); 82 fclose(fp); 83 } 84 } 85 } 86 87 if (fflush(stdout) != 0) 88 err(1, "stdout"); 89 90 exit(exval); 91 } 92 93 static void 94 usage(void) 95 { 96 97 fprintf(stderr, "usage: asa [file ...]\n"); 98 exit(1); 99 } 100 101 static void 102 asa(FILE *f) 103 { 104 size_t len; 105 char *buf; 106 107 if ((buf = fgetln(f, &len)) != NULL) { 108 if (buf[len - 1] == '\n') 109 buf[--len] = '\0'; 110 /* special case the first line */ 111 switch (buf[0]) { 112 case '0': 113 putchar('\n'); 114 break; 115 case '1': 116 putchar('\f'); 117 break; 118 } 119 120 if (len > 1 && buf[0] && buf[1]) 121 printf("%.*s", (int)(len - 1), buf + 1); 122 123 while ((buf = fgetln(f, &len)) != NULL) { 124 if (buf[len - 1] == '\n') 125 buf[--len] = '\0'; 126 switch (buf[0]) { 127 default: 128 case ' ': 129 putchar('\n'); 130 break; 131 case '0': 132 putchar('\n'); 133 putchar('\n'); 134 break; 135 case '1': 136 putchar('\f'); 137 break; 138 case '+': 139 putchar('\r'); 140 break; 141 } 142 143 if (len > 1 && buf[0] && buf[1]) 144 printf("%.*s", (int)(len - 1), buf + 1); 145 } 146 147 putchar('\n'); 148 } 149 150 if (ferror(stdout) != 0) 151 err(1, "stdout"); 152 } 153