| File: | src/games/morse/morse.c |
| Warning: | line 151, column 2 Value stored to 'argc' is never read |
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| 1 | /* $OpenBSD: morse.c,v 1.22 2016/03/07 12:07:56 mestre 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 <ctype.h> |
| 33 | #include <err.h> |
| 34 | #include <stdio.h> |
| 35 | #include <stdlib.h> |
| 36 | #include <string.h> |
| 37 | #include <unistd.h> |
| 38 | |
| 39 | static char |
| 40 | *digit[] = { |
| 41 | "-----", |
| 42 | ".----", |
| 43 | "..---", |
| 44 | "...--", |
| 45 | "....-", |
| 46 | ".....", |
| 47 | "-....", |
| 48 | "--...", |
| 49 | "---..", |
| 50 | "----.", |
| 51 | }, |
| 52 | *alph[] = { |
| 53 | ".-", |
| 54 | "-...", |
| 55 | "-.-.", |
| 56 | "-..", |
| 57 | ".", |
| 58 | "..-.", |
| 59 | "--.", |
| 60 | "....", |
| 61 | "..", |
| 62 | ".---", |
| 63 | "-.-", |
| 64 | ".-..", |
| 65 | "--", |
| 66 | "-.", |
| 67 | "---", |
| 68 | ".--.", |
| 69 | "--.-", |
| 70 | ".-.", |
| 71 | "...", |
| 72 | "-", |
| 73 | "..-", |
| 74 | "...-", |
| 75 | ".--", |
| 76 | "-..-", |
| 77 | "-.--", |
| 78 | "--..", |
| 79 | }; |
| 80 | |
| 81 | struct punc { |
| 82 | char c; |
| 83 | char *morse; |
| 84 | } other[] = { |
| 85 | { 'e', "..-.." }, /* accented e - only decodes */ |
| 86 | { ',', "--..--" }, |
| 87 | { '.', ".-.-.-" }, |
| 88 | { '?', "..--.." }, |
| 89 | { '/', "-..-." }, |
| 90 | { '-', "-....-" }, |
| 91 | { ':', "---..." }, |
| 92 | { ';', "-.-.-." }, |
| 93 | { '(', "-.--." }, /* KN */ |
| 94 | { ')', "-.--.-" }, |
| 95 | { '"', ".-..-." }, |
| 96 | { '`', ".-..-." }, |
| 97 | { '\'', ".----." }, |
| 98 | { '+', ".-.-." }, /* AR \n\n\n */ |
| 99 | { '=', "-...-" }, /* BT \n\n */ |
| 100 | { '@', ".--.-." }, |
| 101 | { '\n', ".-.-" }, /* AA (will only decode) */ |
| 102 | { '\0', NULL((void *)0) } |
| 103 | }; |
| 104 | |
| 105 | struct prosign { |
| 106 | char *c; |
| 107 | char *morse; |
| 108 | } ps[] = { |
| 109 | { "<AS>", ".-..." }, /* wait */ |
| 110 | { "<CL>", "-.-..-.." }, |
| 111 | { "<CT>", "-.-.-" }, /* start */ |
| 112 | { "<EE5>", "......" }, /* error */ |
| 113 | { "<EE5>", "......." }, |
| 114 | { "<EE5>", "........" }, |
| 115 | { "<SK>", "...-.-" }, |
| 116 | { "<SN>", "...-." }, /* understood */ |
| 117 | { "<SOS>", "...---..." }, |
| 118 | { NULL((void *)0), NULL((void *)0) } |
| 119 | }; |
| 120 | |
| 121 | void morse(int); |
| 122 | void decode(char *); |
| 123 | void show(char *); |
| 124 | |
| 125 | static int sflag = 0; |
| 126 | static int dflag = 0; |
| 127 | |
| 128 | int |
| 129 | main(int argc, char *argv[]) |
| 130 | { |
| 131 | int ch; |
| 132 | char *p; |
| 133 | |
| 134 | if (pledge("stdio", NULL((void *)0)) == -1) |
| 135 | err(1, "pledge"); |
| 136 | |
| 137 | while ((ch = getopt(argc, argv, "dsh")) != -1) |
| 138 | switch(ch) { |
| 139 | case 'd': |
| 140 | dflag = 1; |
| 141 | break; |
| 142 | case 's': |
| 143 | sflag = 1; |
| 144 | break; |
| 145 | case 'h': |
| 146 | default: |
| 147 | fprintf(stderr(&__sF[2]), "usage: %s [-d | -s] [string ...]\n", |
| 148 | getprogname()); |
| 149 | return 1; |
| 150 | } |
| 151 | argc -= optind; |
Value stored to 'argc' is never read | |
| 152 | argv += optind; |
| 153 | |
| 154 | if (dflag) { |
| 155 | if (*argv) { |
| 156 | do { |
| 157 | decode(*argv); |
| 158 | } while (*++argv); |
| 159 | } else { |
| 160 | char foo[10]; /* All morse chars shorter than this */ |
| 161 | int isblank, i; |
| 162 | |
| 163 | i = 0; |
| 164 | isblank = 0; |
| 165 | while ((ch = getchar()(!__isthreaded ? (--((&__sF[0]))->_r < 0 ? __srget( (&__sF[0])) : (int)(*((&__sF[0]))->_p++)) : (getc) ((&__sF[0])))) != EOF(-1)) { |
| 166 | if (ch == '-' || ch == '.') { |
| 167 | foo[i++] = ch; |
| 168 | if (i == 10) { |
| 169 | /* overrun means gibberish--print 'x' and |
| 170 | * advance */ |
| 171 | i = 0; |
| 172 | putchar('x')(!__isthreaded ? __sputc('x', (&__sF[1])) : (putc)('x', ( &__sF[1]))); |
| 173 | while ((ch = getchar()(!__isthreaded ? (--((&__sF[0]))->_r < 0 ? __srget( (&__sF[0])) : (int)(*((&__sF[0]))->_p++)) : (getc) ((&__sF[0])))) != EOF(-1) && |
| 174 | (ch == '.' || ch == '-')) |
| 175 | ; |
| 176 | isblank = 1; |
| 177 | } |
| 178 | } else if (i) { |
| 179 | foo[i] = '\0'; |
| 180 | decode(foo); |
| 181 | i = 0; |
| 182 | isblank = 0; |
| 183 | } else if (isspace(ch)) { |
| 184 | if (isblank) { |
| 185 | /* print whitespace for each double blank */ |
| 186 | putchar(' ')(!__isthreaded ? __sputc(' ', (&__sF[1])) : (putc)(' ', ( &__sF[1]))); |
| 187 | isblank = 0; |
| 188 | } else |
| 189 | isblank = 1; |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | putchar('\n')(!__isthreaded ? __sputc('\n', (&__sF[1])) : (putc)('\n', (&__sF[1]))); |
| 194 | } else { |
| 195 | if (*argv) |
| 196 | do { |
| 197 | for (p = *argv; *p; ++p) |
| 198 | morse((int)*p); |
| 199 | show(""); |
| 200 | } while (*++argv); |
| 201 | else while ((ch = getchar()(!__isthreaded ? (--((&__sF[0]))->_r < 0 ? __srget( (&__sF[0])) : (int)(*((&__sF[0]))->_p++)) : (getc) ((&__sF[0])))) != EOF(-1)) |
| 202 | morse(ch); |
| 203 | show("...-.-"); /* SK */ |
| 204 | } |
| 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | void |
| 209 | morse(int c) |
| 210 | { |
| 211 | int i; |
| 212 | |
| 213 | if (isalpha(c)) |
| 214 | show(alph[c - (isupper(c) ? 'A' : 'a')]); |
| 215 | else if (isdigit(c)) |
| 216 | show(digit[c - '0']); |
| 217 | else if (isspace(c)) |
| 218 | show(""); /* could show BT for a pause */ |
| 219 | else { |
| 220 | i = 0; |
| 221 | while (other[i].c) { |
| 222 | if (other[i].c == c) { |
| 223 | show(other[i].morse); |
| 224 | break; |
| 225 | } |
| 226 | i++; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | void |
| 232 | decode(char *s) |
| 233 | { |
| 234 | int i; |
| 235 | |
| 236 | for (i = 0; i < 10; i++) |
| 237 | if (strcmp(digit[i], s) == 0) { |
| 238 | putchar('0' + i)(!__isthreaded ? __sputc('0' + i, (&__sF[1])) : (putc)('0' + i, (&__sF[1]))); |
| 239 | return; |
| 240 | } |
| 241 | |
| 242 | for (i = 0; i < 26; i++) |
| 243 | if (strcmp(alph[i], s) == 0) { |
| 244 | putchar('A' + i)(!__isthreaded ? __sputc('A' + i, (&__sF[1])) : (putc)('A' + i, (&__sF[1]))); |
| 245 | return; |
| 246 | } |
| 247 | i = 0; |
| 248 | while (other[i].c) { |
| 249 | if (strcmp(other[i].morse, s) == 0) { |
| 250 | putchar(other[i].c)(!__isthreaded ? __sputc(other[i].c, (&__sF[1])) : (putc) (other[i].c, (&__sF[1]))); |
| 251 | return; |
| 252 | } |
| 253 | i++; |
| 254 | } |
| 255 | i = 0; |
| 256 | while (ps[i].c) { |
| 257 | /* put whitespace around prosigns */ |
| 258 | if (strcmp(ps[i].morse, s) == 0) { |
| 259 | printf(" %s ", ps[i].c); |
| 260 | return; |
| 261 | } |
| 262 | i++; |
| 263 | } |
| 264 | putchar('x')(!__isthreaded ? __sputc('x', (&__sF[1])) : (putc)('x', ( &__sF[1]))); /* line noise */ |
| 265 | } |
| 266 | |
| 267 | |
| 268 | |
| 269 | void |
| 270 | show(char *s) |
| 271 | { |
| 272 | if (sflag) |
| 273 | printf(" %s", s); |
| 274 | else for (; *s; ++s) |
| 275 | printf(" %s", *s == '.' ? "dit" : "daw"); |
| 276 | printf("\n"); |
| 277 | } |