/* $OpenBSD: getword.c,v 1.10 2015/12/31 15:20:36 mestre Exp $ */ /* $NetBSD: getword.c,v 1.4 1995/03/23 08:32:45 cgd Exp $ */ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include "hangman.h" #include "pathnames.h" /* * getword: * Get a valid word out of the dictionary file */ void getword(void) { FILE *inf; char *wp, *gp; long pos; int badwords, countwords; size_t wordlen; inf = Dict; badwords = 0; /* Make sure the dictionary file is valid if it's not the default */ countwords = strcmp(Dict_name, _PATH_DICT); while (badwords < MAXBADWORDS) { if (countwords) badwords++; pos = arc4random_uniform(Dict_size); fseek(inf, pos, SEEK_SET); if (fgets(Word, BUFSIZ, inf) == NULL) continue; if (fgets(Word, BUFSIZ, inf) == NULL) continue; wordlen = strlen(Word); if (wordlen > 0 && Word[wordlen - 1] == '\n') Word[wordlen - 1] = '\0'; if (wordlen < MINLEN || wordlen > MAXLEN) continue; for (wp = Word; *wp; wp++) if (!islower((unsigned char)*wp)) goto cont; break; cont: ; } if (badwords >= MAXBADWORDS) { mvcur(0, COLS - 1, LINES - 1, 0); endwin(); errx(1, "file %s appears to be incorrectly formatted\n(Need one lower-case word per line)", Dict_name); } gp = Known; wp = Word; while (*wp) { *gp++ = '-'; wp++; } *gp = '\0'; }