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
getword(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