1/* $NetBSD: utils.h,v 1.8 2008/04/28 20:23:08 martin Exp $ */
2
3/*-
4 * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Roland C. Dowdeswell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef CGDUTILS_H
33#define CGDUTILS_H
34
35#include <stdio.h>
36
37#define BITS2BYTES(n)	(((n) + 7) / 8)
38
39struct string;
40typedef struct string string_t;
41
42struct bits;
43typedef struct bits bits_t;
44
45__BEGIN_DECLS
46char		**words(const char *, int *);
47void	  	  words_free(char **, int);
48
49void		  memxor(void *, const void *, size_t);
50
51void		  free_notnull(void *);
52
53string_t	 *string_zero(void);
54string_t	 *string_new(const char *, size_t);
55string_t	 *string_dup(const string_t *);
56void		  string_assign(string_t **, string_t *);
57void		  string_free(string_t *);
58string_t	 *string_add(const string_t *, const string_t *);
59string_t	 *string_add_d(string_t *, string_t *);
60string_t	 *string_fromcharstar(const char *);
61const char	 *string_tocharstar(const string_t *);
62string_t	 *string_fromint(int);
63
64void		  string_fprint(FILE *, const string_t *);
65
66bits_t		 *bits_new(const void *, size_t);
67bits_t		 *bits_dup(const bits_t *);
68void		  bits_assign(bits_t **, bits_t *);
69void		  bits_free(bits_t *);
70const void	 *bits_getbuf(bits_t *);
71size_t		  bits_len(bits_t *);
72int		  bits_match(const bits_t *, const bits_t *);
73
74bits_t		 *bits_xor(const bits_t *, const bits_t *);
75bits_t		 *bits_xor_d(bits_t *, bits_t *);
76
77bits_t		 *bits_decode(const string_t *);
78bits_t		 *bits_decode_d(string_t *);
79string_t	 *bits_encode(const bits_t *);
80string_t	 *bits_encode_d(bits_t *);
81
82bits_t		 *bits_cget(const char *, size_t);
83bits_t		 *bits_fget(FILE *, size_t);
84bits_t		 *bits_getrandombits(size_t, int);
85
86void		  bits_fprint(FILE *, const bits_t *);
87__END_DECLS
88
89#endif
90