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1 /* $NetBSD: getword.c,v 1.6 1999/09/08 21:57:17 jsm 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. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)getword.c 8.1 (Berkeley) 5/31/93";
40 #else
41 __RCSID("$NetBSD: getword.c,v 1.6 1999/09/08 21:57:17 jsm Exp $");
42 #endif
43 #endif /* not lint */
44
45 #include "hangman.h"
46
47 /*
48 * getword:
49 * Get a valid word out of the dictionary file
50 */
51 void
52 getword()
53 {
54 FILE *inf;
55 char *wp, *gp;
56 long pos;
57
58 inf = Dict;
59 for (;;) {
60 pos = (double) rand() / (RAND_MAX + 1.0) * (double) Dict_size;
61 fseek(inf, pos, SEEK_SET);
62 if (fgets(Word, BUFSIZ, inf) == NULL)
63 continue;
64 if (fgets(Word, BUFSIZ, inf) == NULL)
65 continue;
66 Word[strlen(Word) - 1] = '\0';
67 if (strlen(Word) < MINLEN)
68 continue;
69 for (wp = Word; *wp; wp++)
70 if (!islower(*wp))
71 goto cont;
72 break;
73 cont: ;
74 }
75 gp = Known;
76 wp = Word;
77 while (*wp) {
78 *gp++ = '-';
79 wp++;
80 }
81 *gp = '\0';
82 }