Rod Coleman / NetServSB2

Netservices modded to read fragmented HTTP respsonse/payload from special purpose server - 180 bytes only

lwip/core/def.c@0:850eacf3e945, 2011-09-08 (annotated)

Committer:
RodColeman
Date:
Thu Sep 08 10:48:09 2011 +0000
Revision:
0:850eacf3e945
revised fixed length to 178 bytes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:850eacf3e945 1 /**
RodColeman 0:850eacf3e945 2 * @file
RodColeman 0:850eacf3e945 3 * Common functions used throughout the stack.
RodColeman 0:850eacf3e945 4 *
RodColeman 0:850eacf3e945 5 */
RodColeman 0:850eacf3e945 6
RodColeman 0:850eacf3e945 7 /*
RodColeman 0:850eacf3e945 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
RodColeman 0:850eacf3e945 9 * All rights reserved.
RodColeman 0:850eacf3e945 10 *
RodColeman 0:850eacf3e945 11 * Redistribution and use in source and binary forms, with or without modification,
RodColeman 0:850eacf3e945 12 * are permitted provided that the following conditions are met:
RodColeman 0:850eacf3e945 13 *
RodColeman 0:850eacf3e945 14 * 1. Redistributions of source code must retain the above copyright notice,
RodColeman 0:850eacf3e945 15 * this list of conditions and the following disclaimer.
RodColeman 0:850eacf3e945 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
RodColeman 0:850eacf3e945 17 * this list of conditions and the following disclaimer in the documentation
RodColeman 0:850eacf3e945 18 * and/or other materials provided with the distribution.
RodColeman 0:850eacf3e945 19 * 3. The name of the author may not be used to endorse or promote products
RodColeman 0:850eacf3e945 20 * derived from this software without specific prior written permission.
RodColeman 0:850eacf3e945 21 *
RodColeman 0:850eacf3e945 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
RodColeman 0:850eacf3e945 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
RodColeman 0:850eacf3e945 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
RodColeman 0:850eacf3e945 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
RodColeman 0:850eacf3e945 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
RodColeman 0:850eacf3e945 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
RodColeman 0:850eacf3e945 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
RodColeman 0:850eacf3e945 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
RodColeman 0:850eacf3e945 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
RodColeman 0:850eacf3e945 31 * OF SUCH DAMAGE.
RodColeman 0:850eacf3e945 32 *
RodColeman 0:850eacf3e945 33 * This file is part of the lwIP TCP/IP stack.
RodColeman 0:850eacf3e945 34 *
RodColeman 0:850eacf3e945 35 * Author: Simon Goldschmidt
RodColeman 0:850eacf3e945 36 *
RodColeman 0:850eacf3e945 37 */
RodColeman 0:850eacf3e945 38
RodColeman 0:850eacf3e945 39 #include "lwip/opt.h"
RodColeman 0:850eacf3e945 40 #include "lwip/def.h"
RodColeman 0:850eacf3e945 41
RodColeman 0:850eacf3e945 42 /**
RodColeman 0:850eacf3e945 43 * These are reference implementations of the byte swapping functions.
RodColeman 0:850eacf3e945 44 * Again with the aim of being simple, correct and fully portable.
RodColeman 0:850eacf3e945 45 * Byte swapping is the second thing you would want to optimize. You will
RodColeman 0:850eacf3e945 46 * need to port it to your architecture and in your cc.h:
RodColeman 0:850eacf3e945 47 *
RodColeman 0:850eacf3e945 48 * #define LWIP_PLATFORM_BYTESWAP 1
RodColeman 0:850eacf3e945 49 * #define LWIP_PLATFORM_HTONS(x) <your_htons>
RodColeman 0:850eacf3e945 50 * #define LWIP_PLATFORM_HTONL(x) <your_htonl>
RodColeman 0:850eacf3e945 51 *
RodColeman 0:850eacf3e945 52 * Note ntohs() and ntohl() are merely references to the htonx counterparts.
RodColeman 0:850eacf3e945 53 */
RodColeman 0:850eacf3e945 54
RodColeman 0:850eacf3e945 55 #if (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN)
RodColeman 0:850eacf3e945 56
RodColeman 0:850eacf3e945 57 /**
RodColeman 0:850eacf3e945 58 * Convert an u16_t from host- to network byte order.
RodColeman 0:850eacf3e945 59 *
RodColeman 0:850eacf3e945 60 * @param n u16_t in host byte order
RodColeman 0:850eacf3e945 61 * @return n in network byte order
RodColeman 0:850eacf3e945 62 */
RodColeman 0:850eacf3e945 63 u16_t
RodColeman 0:850eacf3e945 64 lwip_htons(u16_t n)
RodColeman 0:850eacf3e945 65 {
RodColeman 0:850eacf3e945 66 return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);
RodColeman 0:850eacf3e945 67 }
RodColeman 0:850eacf3e945 68
RodColeman 0:850eacf3e945 69 /**
RodColeman 0:850eacf3e945 70 * Convert an u16_t from network- to host byte order.
RodColeman 0:850eacf3e945 71 *
RodColeman 0:850eacf3e945 72 * @param n u16_t in network byte order
RodColeman 0:850eacf3e945 73 * @return n in host byte order
RodColeman 0:850eacf3e945 74 */
RodColeman 0:850eacf3e945 75 u16_t
RodColeman 0:850eacf3e945 76 lwip_ntohs(u16_t n)
RodColeman 0:850eacf3e945 77 {
RodColeman 0:850eacf3e945 78 return lwip_htons(n);
RodColeman 0:850eacf3e945 79 }
RodColeman 0:850eacf3e945 80
RodColeman 0:850eacf3e945 81 /**
RodColeman 0:850eacf3e945 82 * Convert an u32_t from host- to network byte order.
RodColeman 0:850eacf3e945 83 *
RodColeman 0:850eacf3e945 84 * @param n u32_t in host byte order
RodColeman 0:850eacf3e945 85 * @return n in network byte order
RodColeman 0:850eacf3e945 86 */
RodColeman 0:850eacf3e945 87 u32_t
RodColeman 0:850eacf3e945 88 lwip_htonl(u32_t n)
RodColeman 0:850eacf3e945 89 {
RodColeman 0:850eacf3e945 90 return ((n & 0xff) << 24) |
RodColeman 0:850eacf3e945 91 ((n & 0xff00) << 8) |
RodColeman 0:850eacf3e945 92 ((n & 0xff0000UL) >> 8) |
RodColeman 0:850eacf3e945 93 ((n & 0xff000000UL) >> 24);
RodColeman 0:850eacf3e945 94 }
RodColeman 0:850eacf3e945 95
RodColeman 0:850eacf3e945 96 /**
RodColeman 0:850eacf3e945 97 * Convert an u32_t from network- to host byte order.
RodColeman 0:850eacf3e945 98 *
RodColeman 0:850eacf3e945 99 * @param n u32_t in network byte order
RodColeman 0:850eacf3e945 100 * @return n in host byte order
RodColeman 0:850eacf3e945 101 */
RodColeman 0:850eacf3e945 102 u32_t
RodColeman 0:850eacf3e945 103 lwip_ntohl(u32_t n)
RodColeman 0:850eacf3e945 104 {
RodColeman 0:850eacf3e945 105 return lwip_htonl(n);
RodColeman 0:850eacf3e945 106 }
RodColeman 0:850eacf3e945 107
RodColeman 0:850eacf3e945 108 #endif /* (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN) */