freebsd-dev/games/hangman/getword.c

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/*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef lint
static char sccsid[] = "@(#)getword.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
#include "hangman.h"
#include <stdlib.h>
/*
* getword:
* Get a valid word out of the dictionary file
*/
getword()
{
register FILE *inf;
register char *wp, *gp;
register long pos;
inf = Dict;
for (;;) {
pos = (double)random() / (RAND_MAX + 1.0) * (double)Dict_size;
fseek(inf, pos, 0);
if (fgets(Word, BUFSIZ, inf) == NULL)
continue;
if (fgets(Word, BUFSIZ, inf) == NULL)
continue;
Word[strlen(Word) - 1] = '\0';
if (strlen(Word) < MINLEN)
continue;
for (wp = Word; *wp; wp++)
if (!islower(*wp))
goto cont;
break;
cont: ;
}
gp = Known;
wp = Word;
while (*wp) {
*gp++ = '-';
wp++;
}
*gp = '\0';
}