1 /*
2 * nghttp3
3 *
4 * Copyright (c) 2019 nghttp3 contributors
5 * Copyright (c) 2017 ngtcp2 contributors
6 * Copyright (c) 2012 nghttp2 contributors
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining
9 * a copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sublicense, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 */
27 #include "nghttp3_str.h"
28
29 #include <string.h>
30 #include <assert.h>
31
nghttp3_cpymem(uint8_t * dest,const uint8_t * src,size_t n)32 uint8_t *nghttp3_cpymem(uint8_t *dest, const uint8_t *src, size_t n) {
33 memcpy(dest, src, n);
34 return dest + n;
35 }
36
37 /* Generated by gendowncasetbl.py */
38 static const uint8_t DOWNCASE_TBL[] = {
39 0 /* NUL */, 1 /* SOH */, 2 /* STX */, 3 /* ETX */,
40 4 /* EOT */, 5 /* ENQ */, 6 /* ACK */, 7 /* BEL */,
41 8 /* BS */, 9 /* HT */, 10 /* LF */, 11 /* VT */,
42 12 /* FF */, 13 /* CR */, 14 /* SO */, 15 /* SI */,
43 16 /* DLE */, 17 /* DC1 */, 18 /* DC2 */, 19 /* DC3 */,
44 20 /* DC4 */, 21 /* NAK */, 22 /* SYN */, 23 /* ETB */,
45 24 /* CAN */, 25 /* EM */, 26 /* SUB */, 27 /* ESC */,
46 28 /* FS */, 29 /* GS */, 30 /* RS */, 31 /* US */,
47 32 /* SPC */, 33 /* ! */, 34 /* " */, 35 /* # */,
48 36 /* $ */, 37 /* % */, 38 /* & */, 39 /* ' */,
49 40 /* ( */, 41 /* ) */, 42 /* * */, 43 /* + */,
50 44 /* , */, 45 /* - */, 46 /* . */, 47 /* / */,
51 48 /* 0 */, 49 /* 1 */, 50 /* 2 */, 51 /* 3 */,
52 52 /* 4 */, 53 /* 5 */, 54 /* 6 */, 55 /* 7 */,
53 56 /* 8 */, 57 /* 9 */, 58 /* : */, 59 /* ; */,
54 60 /* < */, 61 /* = */, 62 /* > */, 63 /* ? */,
55 64 /* @ */, 97 /* A */, 98 /* B */, 99 /* C */,
56 100 /* D */, 101 /* E */, 102 /* F */, 103 /* G */,
57 104 /* H */, 105 /* I */, 106 /* J */, 107 /* K */,
58 108 /* L */, 109 /* M */, 110 /* N */, 111 /* O */,
59 112 /* P */, 113 /* Q */, 114 /* R */, 115 /* S */,
60 116 /* T */, 117 /* U */, 118 /* V */, 119 /* W */,
61 120 /* X */, 121 /* Y */, 122 /* Z */, 91 /* [ */,
62 92 /* \ */, 93 /* ] */, 94 /* ^ */, 95 /* _ */,
63 96 /* ` */, 97 /* a */, 98 /* b */, 99 /* c */,
64 100 /* d */, 101 /* e */, 102 /* f */, 103 /* g */,
65 104 /* h */, 105 /* i */, 106 /* j */, 107 /* k */,
66 108 /* l */, 109 /* m */, 110 /* n */, 111 /* o */,
67 112 /* p */, 113 /* q */, 114 /* r */, 115 /* s */,
68 116 /* t */, 117 /* u */, 118 /* v */, 119 /* w */,
69 120 /* x */, 121 /* y */, 122 /* z */, 123 /* { */,
70 124 /* | */, 125 /* } */, 126 /* ~ */, 127 /* DEL */,
71 128 /* 0x80 */, 129 /* 0x81 */, 130 /* 0x82 */, 131 /* 0x83 */,
72 132 /* 0x84 */, 133 /* 0x85 */, 134 /* 0x86 */, 135 /* 0x87 */,
73 136 /* 0x88 */, 137 /* 0x89 */, 138 /* 0x8a */, 139 /* 0x8b */,
74 140 /* 0x8c */, 141 /* 0x8d */, 142 /* 0x8e */, 143 /* 0x8f */,
75 144 /* 0x90 */, 145 /* 0x91 */, 146 /* 0x92 */, 147 /* 0x93 */,
76 148 /* 0x94 */, 149 /* 0x95 */, 150 /* 0x96 */, 151 /* 0x97 */,
77 152 /* 0x98 */, 153 /* 0x99 */, 154 /* 0x9a */, 155 /* 0x9b */,
78 156 /* 0x9c */, 157 /* 0x9d */, 158 /* 0x9e */, 159 /* 0x9f */,
79 160 /* 0xa0 */, 161 /* 0xa1 */, 162 /* 0xa2 */, 163 /* 0xa3 */,
80 164 /* 0xa4 */, 165 /* 0xa5 */, 166 /* 0xa6 */, 167 /* 0xa7 */,
81 168 /* 0xa8 */, 169 /* 0xa9 */, 170 /* 0xaa */, 171 /* 0xab */,
82 172 /* 0xac */, 173 /* 0xad */, 174 /* 0xae */, 175 /* 0xaf */,
83 176 /* 0xb0 */, 177 /* 0xb1 */, 178 /* 0xb2 */, 179 /* 0xb3 */,
84 180 /* 0xb4 */, 181 /* 0xb5 */, 182 /* 0xb6 */, 183 /* 0xb7 */,
85 184 /* 0xb8 */, 185 /* 0xb9 */, 186 /* 0xba */, 187 /* 0xbb */,
86 188 /* 0xbc */, 189 /* 0xbd */, 190 /* 0xbe */, 191 /* 0xbf */,
87 192 /* 0xc0 */, 193 /* 0xc1 */, 194 /* 0xc2 */, 195 /* 0xc3 */,
88 196 /* 0xc4 */, 197 /* 0xc5 */, 198 /* 0xc6 */, 199 /* 0xc7 */,
89 200 /* 0xc8 */, 201 /* 0xc9 */, 202 /* 0xca */, 203 /* 0xcb */,
90 204 /* 0xcc */, 205 /* 0xcd */, 206 /* 0xce */, 207 /* 0xcf */,
91 208 /* 0xd0 */, 209 /* 0xd1 */, 210 /* 0xd2 */, 211 /* 0xd3 */,
92 212 /* 0xd4 */, 213 /* 0xd5 */, 214 /* 0xd6 */, 215 /* 0xd7 */,
93 216 /* 0xd8 */, 217 /* 0xd9 */, 218 /* 0xda */, 219 /* 0xdb */,
94 220 /* 0xdc */, 221 /* 0xdd */, 222 /* 0xde */, 223 /* 0xdf */,
95 224 /* 0xe0 */, 225 /* 0xe1 */, 226 /* 0xe2 */, 227 /* 0xe3 */,
96 228 /* 0xe4 */, 229 /* 0xe5 */, 230 /* 0xe6 */, 231 /* 0xe7 */,
97 232 /* 0xe8 */, 233 /* 0xe9 */, 234 /* 0xea */, 235 /* 0xeb */,
98 236 /* 0xec */, 237 /* 0xed */, 238 /* 0xee */, 239 /* 0xef */,
99 240 /* 0xf0 */, 241 /* 0xf1 */, 242 /* 0xf2 */, 243 /* 0xf3 */,
100 244 /* 0xf4 */, 245 /* 0xf5 */, 246 /* 0xf6 */, 247 /* 0xf7 */,
101 248 /* 0xf8 */, 249 /* 0xf9 */, 250 /* 0xfa */, 251 /* 0xfb */,
102 252 /* 0xfc */, 253 /* 0xfd */, 254 /* 0xfe */, 255 /* 0xff */,
103 };
104
nghttp3_downcase(uint8_t * s,size_t len)105 void nghttp3_downcase(uint8_t *s, size_t len) {
106 size_t i;
107 for (i = 0; i < len; ++i) {
108 s[i] = DOWNCASE_TBL[s[i]];
109 }
110 }
111