1 /*
2 * nghttp2 - HTTP/2 C Library
3 *
4 * Copyright (c) 2012 Tatsuhiro Tsujikawa
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25 #include <stdio.h>
26 #include <stdint.h>
27 #include "nghttp2_net.h"
28
29 #if IOT_BYTE_ORDER == LITTLE_ENDIAN
nghttp2_htonl(uint32_t hostlong)30 uint32_t nghttp2_htonl(uint32_t hostlong)
31 {
32 uint32_t res;
33 unsigned char *p = (unsigned char *)&res;
34 *p++ = hostlong >> 24;
35 *p++ = (hostlong >> 16) & 0xffu;
36 *p++ = (hostlong >> 8) & 0xffu;
37 *p = hostlong & 0xffu;
38 return res;
39 }
40
nghttp2_htons(uint16_t hostshort)41 uint16_t nghttp2_htons(uint16_t hostshort)
42 {
43 uint16_t res;
44 unsigned char *p = (unsigned char *)&res;
45 *p++ = hostshort >> 8;
46 *p = hostshort & 0xffu;
47 return res;
48 }
49
nghttp2_ntohl(uint32_t netlong)50 uint32_t nghttp2_ntohl(uint32_t netlong)
51 {
52 uint32_t res;
53 unsigned char *p = (unsigned char *)&netlong;
54 res = *p++ << 24;
55 res += *p++ << 16;
56 res += *p++ << 8;
57 res += *p;
58 return res;
59 }
60
nghttp2_ntohs(uint16_t netshort)61 uint16_t nghttp2_ntohs(uint16_t netshort)
62 {
63 uint16_t res;
64 unsigned char *p = (unsigned char *)&netshort;
65 res = *p++ << 8;
66 res += *p;
67 return res;
68 }
69 #endif
70