1 /*
2 * uriparser - RFC 3986 URI parsing library
3 *
4 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
5 * Copyright (C) 2007, Sebastian Pipping <sebastian@pipping.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * * Redistributions of source code must retain the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer.
15 *
16 * * Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials
19 * provided with the distribution.
20 *
21 * * Neither the name of the <ORGANIZATION> nor the names of its
22 * contributors may be used to endorse or promote products
23 * derived from this software without specific prior written
24 * permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
29 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
30 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
32 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
33 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
37 * OF THE POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #ifndef URI_DOXYGEN
41 # include "UriParseBase.h"
42 #endif
43
44
45
uriWriteQuadToDoubleByte(const unsigned char * hexDigits,int digitCount,unsigned char * output)46 void uriWriteQuadToDoubleByte(const unsigned char * hexDigits, int digitCount, unsigned char * output) {
47 switch (digitCount) {
48 case 1:
49 /* 0x___? -> \x00 \x0? */
50 output[0] = 0;
51 output[1] = hexDigits[0];
52 break;
53
54 case 2:
55 /* 0x__?? -> \0xx \x?? */
56 output[0] = 0;
57 output[1] = 16 * hexDigits[0] + hexDigits[1];
58 break;
59
60 case 3:
61 /* 0x_??? -> \0x? \x?? */
62 output[0] = hexDigits[0];
63 output[1] = 16 * hexDigits[1] + hexDigits[2];
64 break;
65
66 case 4:
67 /* 0x???? -> \0?? \x?? */
68 output[0] = 16 * hexDigits[0] + hexDigits[1];
69 output[1] = 16 * hexDigits[2] + hexDigits[3];
70 break;
71
72 }
73 }
74
75
76
uriGetOctetValue(const unsigned char * digits,int digitCount)77 unsigned char uriGetOctetValue(const unsigned char * digits, int digitCount) {
78 switch (digitCount) {
79 case 1:
80 return digits[0];
81
82 case 2:
83 return 10 * digits[0] + digits[1];
84
85 case 3:
86 default:
87 return 100 * digits[0] + 10 * digits[1] + digits[2];
88
89 }
90 }
91