1 /* $OpenBSD: getword.c,v 1.6 2006/10/24 17:20:41 moritz 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 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)getword.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 static char rcsid[] = "$OpenBSD: getword.c,v 1.6 2006/10/24 17:20:41 moritz Exp $"; 38 #endif 39 #endif /* not lint */ 40 41 #include <stdlib.h> 42 #include "hangman.h" 43 #include "pathnames.h" 44 45 /* 46 * getword: 47 * Get a valid word out of the dictionary file 48 */ 49 void 50 getword(void) 51 { 52 FILE *inf; 53 char *wp, *gp; 54 long pos; 55 int badwords, countwords; 56 size_t wordlen; 57 58 inf = Dict; 59 badwords = 0; 60 /* Make sure the dictionary file is valid if it's not the default */ 61 countwords = strcmp(Dict_name, _PATH_DICT); 62 while (badwords < MAXBADWORDS) { 63 if (countwords) 64 badwords++; 65 pos = (double) random() / (RAND_MAX + 1.0) * (double) Dict_size; 66 fseek(inf, pos, SEEK_SET); 67 if (fgets(Word, BUFSIZ, inf) == NULL) 68 continue; 69 if (fgets(Word, BUFSIZ, inf) == NULL) 70 continue; 71 wordlen = strlen(Word); 72 if (wordlen > 0 && Word[wordlen - 1] == '\n') 73 Word[wordlen - 1] = '\0'; 74 if (wordlen < MINLEN || wordlen > MAXLEN) 75 continue; 76 for (wp = Word; *wp; wp++) 77 if (!islower(*wp)) 78 goto cont; 79 break; 80 cont: ; 81 } 82 if (badwords >= MAXBADWORDS) { 83 mvcur(0, COLS - 1, LINES - 1, 0); 84 endwin(); 85 errx(1, "file %s appears to be incorrectly formatted\n(Need one lower-case word per line)", 86 Dict_name); 87 } 88 gp = Known; 89 wp = Word; 90 while (*wp) { 91 *gp++ = '-'; 92 wp++; 93 } 94 *gp = '\0'; 95 } 96