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1/*
2 *
3 * bufaux.h
4 *
5 * Author: Tatu Ylonen <ylo@cs.hut.fi>
6 *
7 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8 * All rights reserved
9 *
10 * Created: Wed Mar 29 02:18:23 1995 ylo
11 *
12 */
13
14/* RCSID("$OpenBSD: bufaux.h,v 1.7 2000/06/20 01:39:39 markus Exp $"); */
15
16#ifndef BUFAUX_H
17#define BUFAUX_H
18
19#include "buffer.h"
20
21/*
22 * Stores an BIGNUM in the buffer with a 2-byte msb first bit count, followed
23 * by (bits+7)/8 bytes of binary data, msb first.
24 */
25void buffer_put_bignum(Buffer * buffer, BIGNUM * value);
26void buffer_put_bignum2(Buffer * buffer, BIGNUM * value);
27
28/* Retrieves an BIGNUM from the buffer. */
29int buffer_get_bignum(Buffer * buffer, BIGNUM * value);
30int buffer_get_bignum2(Buffer *buffer, BIGNUM * value);
31
32/* Returns an integer from the buffer (4 bytes, msb first). */
33unsigned int buffer_get_int(Buffer * buffer);
34
35/* Stores an integer in the buffer in 4 bytes, msb first. */
36void buffer_put_int(Buffer * buffer, unsigned int value);
37
38/* Returns a character from the buffer (0 - 255). */
39int buffer_get_char(Buffer * buffer);
40
41/* Stores a character in the buffer. */
42void buffer_put_char(Buffer * buffer, int value);
43
44/*
45 * Returns an arbitrary binary string from the buffer. The string cannot be
46 * longer than 256k. The returned value points to memory allocated with
47 * xmalloc; it is the responsibility of the calling function to free the
48 * data. If length_ptr is non-NULL, the length of the returned data will be
49 * stored there. A null character will be automatically appended to the
50 * returned string, and is not counted in length.
51 */
52char *buffer_get_string(Buffer * buffer, unsigned int *length_ptr);
53
54/* Stores and arbitrary binary string in the buffer. */
55void buffer_put_string(Buffer * buffer, const void *buf, unsigned int len);
56void buffer_put_cstring(Buffer *buffer, const char *s);
57
58#endif /* BUFAUX_H */