]>
Commit | Line | Data |
---|---|---|
2e437378 | 1 | /* $OpenBSD: buffer.h,v 1.16 2006/08/03 03:34:41 deraadt Exp $ */ |
e9a17296 | 2 | |
3c0ef626 | 3 | /* |
4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
6 | * All rights reserved | |
7 | * Code for manipulating FIFO buffers. | |
8 | * | |
9 | * As far as I am concerned, the code I have written for this software | |
10 | * can be used freely for any purpose. Any derived versions of this | |
11 | * software must be clearly marked as such, and if the derived work is | |
12 | * incompatible with the protocol description in the RFC file, it must be | |
13 | * called by a name other than "ssh" or "Secure Shell". | |
14 | */ | |
15 | ||
3c0ef626 | 16 | #ifndef BUFFER_H |
17 | #define BUFFER_H | |
2e437378 | 18 | #define BUFFER_MAX_LEN_HPN 0x4000000 /* 64MB */ |
3c0ef626 | 19 | |
20 | typedef struct { | |
e9a17296 | 21 | u_char *buf; /* Buffer for data. */ |
3c0ef626 | 22 | u_int alloc; /* Number of bytes allocated for data. */ |
23 | u_int offset; /* Offset of first byte containing data. */ | |
24 | u_int end; /* Offset of last byte containing data. */ | |
25 | } Buffer; | |
26 | ||
27 | void buffer_init(Buffer *); | |
28 | void buffer_clear(Buffer *); | |
29 | void buffer_free(Buffer *); | |
30 | ||
31 | u_int buffer_len(Buffer *); | |
e9a17296 | 32 | void *buffer_ptr(Buffer *); |
3c0ef626 | 33 | |
e9a17296 | 34 | void buffer_append(Buffer *, const void *, u_int); |
35 | void *buffer_append_space(Buffer *, u_int); | |
3c0ef626 | 36 | |
2e437378 | 37 | int buffer_check_alloc(Buffer *, u_int); |
38 | ||
e9a17296 | 39 | void buffer_get(Buffer *, void *, u_int); |
3c0ef626 | 40 | |
41 | void buffer_consume(Buffer *, u_int); | |
42 | void buffer_consume_end(Buffer *, u_int); | |
43 | ||
44 | void buffer_dump(Buffer *); | |
45 | ||
34fee935 | 46 | int buffer_get_ret(Buffer *, void *, u_int); |
47 | int buffer_consume_ret(Buffer *, u_int); | |
48 | int buffer_consume_end_ret(Buffer *, u_int); | |
49 | ||
2e437378 | 50 | #include <openssl/bn.h> |
51 | ||
52 | void buffer_put_bignum(Buffer *, const BIGNUM *); | |
53 | void buffer_put_bignum2(Buffer *, const BIGNUM *); | |
54 | void buffer_get_bignum(Buffer *, BIGNUM *); | |
55 | void buffer_get_bignum2(Buffer *, BIGNUM *); | |
56 | ||
57 | u_short buffer_get_short(Buffer *); | |
58 | void buffer_put_short(Buffer *, u_short); | |
59 | ||
60 | u_int buffer_get_int(Buffer *); | |
61 | void buffer_put_int(Buffer *, u_int); | |
62 | ||
63 | u_int64_t buffer_get_int64(Buffer *); | |
64 | void buffer_put_int64(Buffer *, u_int64_t); | |
65 | ||
66 | int buffer_get_char(Buffer *); | |
67 | void buffer_put_char(Buffer *, int); | |
68 | ||
69 | void *buffer_get_string(Buffer *, u_int *); | |
70 | void buffer_put_string(Buffer *, const void *, u_int); | |
71 | void buffer_put_cstring(Buffer *, const char *); | |
72 | ||
73 | #define buffer_skip_string(b) \ | |
74 | do { u_int l = buffer_get_int(b); buffer_consume(b, l); } while (0) | |
75 | ||
76 | int buffer_put_bignum_ret(Buffer *, const BIGNUM *); | |
77 | int buffer_get_bignum_ret(Buffer *, BIGNUM *); | |
78 | int buffer_put_bignum2_ret(Buffer *, const BIGNUM *); | |
79 | int buffer_get_bignum2_ret(Buffer *, BIGNUM *); | |
80 | int buffer_get_short_ret(u_short *, Buffer *); | |
81 | int buffer_get_int_ret(u_int *, Buffer *); | |
82 | int buffer_get_int64_ret(u_int64_t *, Buffer *); | |
83 | void *buffer_get_string_ret(Buffer *, u_int *); | |
84 | int buffer_get_char_ret(char *, Buffer *); | |
85 | ||
3c0ef626 | 86 | #endif /* BUFFER_H */ |