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utilities.h (2376B)
1 /*
2 utilities.h
3
4 Jonathan D. Hall - jhall@futuresouth.us
5 Copyright 2015 Future South Technologies
6
7 This file is part of libwebsock2.
8
9 libwebsock2 is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
13
14 libwebsock2 is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with libwebsock2. If not, see <http://www.gnu.org/licenses/>.
21
22 */
23
24 /*
25 * SHA1 functions written by Paul E. Jones <paulej@packetizer.com>
26 * Copyright (C) 1998, 2009 - All Rights Reserved
27 */
28
29 #ifndef _utilities_h
30 #define _utilities_h
31
32 #include "libsheepyObject.h"
33
34 typedef struct SHA1Context
35 {
36 unsigned Message_Digest[5]; /* Message Digest (output) */
37
38 unsigned Length_Low; /* Message length in bits */
39 unsigned Length_High; /* Message length in bits */
40
41 unsigned char Message_Block[64]; /* 512-bit message blocks */
42 int Message_Block_Index; /* Index into message block array */
43
44 int Computed; /* Is the digest computed? */
45 int Corrupted; /* Is the message digest corruped? */
46 } SHA1Context;
47
48
49 /* UTF prototypes */
50
51 int validate_utf8_sequence(uint8_t *s);
52 uint16_t lws_htobe16(uint16_t x);
53 uint16_t lws_be16toh(uint16_t x);
54 uint64_t lws_htobe64(uint64_t x);
55 uint64_t lws_be64toh(uint64_t x);
56
57
58 /* Base64 prototypes */
59
60 int base64_encode(unsigned char *source, size_t sourcelen, char *target, size_t targetlen);
61 void _base64_encode_triple(unsigned char triple[3], char result[4]);
62 int _base64_char_value(char base64char);
63 int _base64_decode_triple(char quadruple[4], unsigned char *result);
64 size_t base64_decode(char *source, unsigned char *target, size_t targetlen);
65
66 /* SHA1 prototypes */
67
68 void SHA1Reset(SHA1Context *);
69 int SHA1Result(SHA1Context *);
70 void SHA1Input( SHA1Context *, const unsigned char *, unsigned);
71 void SHA1ProcessMessageBlock(SHA1Context *);
72 void SHA1PadMessage(SHA1Context *);
73
74 #endif /* utilities_h */