Home | History | Annotate | Line # | Download | only in hangman 
      1 /*	$NetBSD: getword.c,v 1.10 2012/06/19 05:45:00 dholland Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 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 <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)getword.c	8.1 (Berkeley) 5/31/93";
     36 #else
     37 __RCSID("$NetBSD: getword.c,v 1.10 2012/06/19 05:45:00 dholland Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include "hangman.h"
     42 
     43 /*
     44  * getword:
     45  *	Get a valid word out of the dictionary file
     46  */
     47 void
     48 getword(void)
     49 {
     50 	FILE *inf;
     51 	char *wp, *gp;
     52 	long pos;
     53 
     54 	inf = Dict;
     55 	for (;;) {
     56 		pos = (double) rand() / (RAND_MAX + 1.0) * (double) Dict_size;
     57 		fseek(inf, pos, SEEK_SET);
     58 		if (fgets(Word, BUFSIZ, inf) == NULL)
     59 			continue;
     60 		if (fgets(Word, BUFSIZ, inf) == NULL)
     61 			continue;
     62 		Word[strlen(Word) - 1] = '\0';
     63 		if (strlen(Word) < Minlen)
     64 			continue;
     65 		for (wp = Word; *wp; wp++)
     66 			if (!islower((unsigned char)*wp))
     67 				goto cont;
     68 		break;
     69 cont:		;
     70 	}
     71 	gp = Known;
     72 	wp = Word;
     73 	while (*wp) {
     74 		*gp++ = '-';
     75 		wp++;
     76 	}
     77 	*gp = '\0';
     78 }
     79