1 /* $OpenBSD: getword.c,v 1.8 2013/08/29 20:22:14 naddy Exp $ */ 2 /* $NetBSD: getword.c,v 1.4 1995/03/23 08:32:45 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <stdlib.h> 34 #include "hangman.h" 35 #include "pathnames.h" 36 37 /* 38 * getword: 39 * Get a valid word out of the dictionary file 40 */ 41 void 42 getword(void) 43 { 44 FILE *inf; 45 char *wp, *gp; 46 long pos; 47 int badwords, countwords; 48 size_t wordlen; 49 50 inf = Dict; 51 badwords = 0; 52 /* Make sure the dictionary file is valid if it's not the default */ 53 countwords = strcmp(Dict_name, _PATH_DICT); 54 while (badwords < MAXBADWORDS) { 55 if (countwords) 56 badwords++; 57 pos = arc4random_uniform(Dict_size); 58 fseek(inf, pos, SEEK_SET); 59 if (fgets(Word, BUFSIZ, inf) == NULL) 60 continue; 61 if (fgets(Word, BUFSIZ, inf) == NULL) 62 continue; 63 wordlen = strlen(Word); 64 if (wordlen > 0 && Word[wordlen - 1] == '\n') 65 Word[wordlen - 1] = '\0'; 66 if (wordlen < MINLEN || wordlen > MAXLEN) 67 continue; 68 for (wp = Word; *wp; wp++) 69 if (!islower(*wp)) 70 goto cont; 71 break; 72 cont: ; 73 } 74 if (badwords >= MAXBADWORDS) { 75 mvcur(0, COLS - 1, LINES - 1, 0); 76 endwin(); 77 errx(1, "file %s appears to be incorrectly formatted\n(Need one lower-case word per line)", 78 Dict_name); 79 } 80 gp = Known; 81 wp = Word; 82 while (*wp != '\0') { 83 *gp++ = '-'; 84 wp++; 85 } 86 *gp = '\0'; 87 } 88