casiotone 401 / Bonjour

modded version Dirk-Willem van Gulik's Bonjour/Zerconf library http://mbed.org/users/dirkx/code/Bonjour/

Dependents:   OSCtoCVConverter

Fork of Bonjour by Dirk-Willem van Gulik (NXP/mbed)

lwip/core/def.cpp@8:275256b5d807, 2014-10-16 (annotated)

Committer:
casiotone401
Date:
Thu Oct 16 14:13:21 2014 +0000
Revision:
8:275256b5d807
Parent:
7:105191e07767 
minor change

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dirkx 0:355018f44c9f 1 /**
dirkx 0:355018f44c9f 2 * @file
dirkx 0:355018f44c9f 3 * Common functions used throughout the stack.
dirkx 0:355018f44c9f 4 *
dirkx 0:355018f44c9f 5 */
dirkx 0:355018f44c9f 6
dirkx 0:355018f44c9f 7 /*
dirkx 0:355018f44c9f 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
dirkx 0:355018f44c9f 9 * All rights reserved.
dirkx 0:355018f44c9f 10 *
dirkx 0:355018f44c9f 11 * Redistribution and use in source and binary forms, with or without modification,
dirkx 0:355018f44c9f 12 * are permitted provided that the following conditions are met:
dirkx 0:355018f44c9f 13 *
dirkx 0:355018f44c9f 14 * 1. Redistributions of source code must retain the above copyright notice,
dirkx 0:355018f44c9f 15 * this list of conditions and the following disclaimer.
dirkx 0:355018f44c9f 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
dirkx 0:355018f44c9f 17 * this list of conditions and the following disclaimer in the documentation
dirkx 0:355018f44c9f 18 * and/or other materials provided with the distribution.
dirkx 0:355018f44c9f 19 * 3. The name of the author may not be used to endorse or promote products
dirkx 0:355018f44c9f 20 * derived from this software without specific prior written permission.
dirkx 0:355018f44c9f 21 *
dirkx 0:355018f44c9f 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
dirkx 0:355018f44c9f 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
dirkx 0:355018f44c9f 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
dirkx 0:355018f44c9f 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
dirkx 0:355018f44c9f 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
dirkx 0:355018f44c9f 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
dirkx 0:355018f44c9f 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
dirkx 0:355018f44c9f 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
dirkx 0:355018f44c9f 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
dirkx 0:355018f44c9f 31 * OF SUCH DAMAGE.
dirkx 0:355018f44c9f 32 *
dirkx 0:355018f44c9f 33 * This file is part of the lwIP TCP/IP stack.
dirkx 0:355018f44c9f 34 *
dirkx 0:355018f44c9f 35 * Author: Simon Goldschmidt
dirkx 0:355018f44c9f 36 *
dirkx 0:355018f44c9f 37 */
dirkx 0:355018f44c9f 38
dirkx 0:355018f44c9f 39 #include "lwip/opt.h"
dirkx 0:355018f44c9f 40 #include "lwip/def.h"
dirkx 0:355018f44c9f 41
dirkx 0:355018f44c9f 42 /**
dirkx 0:355018f44c9f 43 * These are reference implementations of the byte swapping functions.
dirkx 0:355018f44c9f 44 * Again with the aim of being simple, correct and fully portable.
dirkx 0:355018f44c9f 45 * Byte swapping is the second thing you would want to optimize. You will
dirkx 0:355018f44c9f 46 * need to port it to your architecture and in your cc.h:
dirkx 0:355018f44c9f 47 *
dirkx 0:355018f44c9f 48 * #define LWIP_PLATFORM_BYTESWAP 1
dirkx 0:355018f44c9f 49 * #define LWIP_PLATFORM_HTONS(x) <your_htons>
dirkx 0:355018f44c9f 50 * #define LWIP_PLATFORM_HTONL(x) <your_htonl>
dirkx 0:355018f44c9f 51 *
dirkx 0:355018f44c9f 52 * Note ntohs() and ntohl() are merely references to the htonx counterparts.
dirkx 0:355018f44c9f 53 */
dirkx 0:355018f44c9f 54
dirkx 0:355018f44c9f 55 #if (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN)
dirkx 0:355018f44c9f 56
dirkx 0:355018f44c9f 57 /**
dirkx 0:355018f44c9f 58 * Convert an u16_t from host- to network byte order.
dirkx 0:355018f44c9f 59 *
dirkx 0:355018f44c9f 60 * @param n u16_t in host byte order
dirkx 0:355018f44c9f 61 * @return n in network byte order
dirkx 0:355018f44c9f 62 */
dirkx 0:355018f44c9f 63 u16_t
dirkx 0:355018f44c9f 64 htons(u16_t n)
dirkx 0:355018f44c9f 65 {
dirkx 0:355018f44c9f 66 return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);
dirkx 0:355018f44c9f 67 }
dirkx 0:355018f44c9f 68
dirkx 0:355018f44c9f 69 /**
dirkx 0:355018f44c9f 70 * Convert an u16_t from network- to host byte order.
dirkx 0:355018f44c9f 71 *
dirkx 0:355018f44c9f 72 * @param n u16_t in network byte order
dirkx 0:355018f44c9f 73 * @return n in host byte order
dirkx 0:355018f44c9f 74 */
dirkx 0:355018f44c9f 75 u16_t
dirkx 0:355018f44c9f 76 ntohs(u16_t n)
dirkx 0:355018f44c9f 77 {
dirkx 0:355018f44c9f 78 return htons(n);
dirkx 0:355018f44c9f 79 }
dirkx 0:355018f44c9f 80
dirkx 0:355018f44c9f 81 /**
dirkx 0:355018f44c9f 82 * Convert an u32_t from host- to network byte order.
dirkx 0:355018f44c9f 83 *
dirkx 0:355018f44c9f 84 * @param n u32_t in host byte order
dirkx 0:355018f44c9f 85 * @return n in network byte order
dirkx 0:355018f44c9f 86 */
dirkx 0:355018f44c9f 87 u32_t
dirkx 0:355018f44c9f 88 htonl(u32_t n)
dirkx 0:355018f44c9f 89 {
dirkx 0:355018f44c9f 90 return ((n & 0xff) << 24) |
dirkx 0:355018f44c9f 91 ((n & 0xff00) << 8) |
dirkx 0:355018f44c9f 92 ((n & 0xff0000UL) >> 8) |
dirkx 0:355018f44c9f 93 ((n & 0xff000000UL) >> 24);
dirkx 0:355018f44c9f 94 }
dirkx 0:355018f44c9f 95
dirkx 0:355018f44c9f 96 /**
dirkx 0:355018f44c9f 97 * Convert an u32_t from network- to host byte order.
dirkx 0:355018f44c9f 98 *
dirkx 0:355018f44c9f 99 * @param n u32_t in network byte order
dirkx 0:355018f44c9f 100 * @return n in host byte order
dirkx 0:355018f44c9f 101 */
dirkx 0:355018f44c9f 102 u32_t
dirkx 0:355018f44c9f 103 ntohl(u32_t n)
dirkx 0:355018f44c9f 104 {
dirkx 0:355018f44c9f 105 return htonl(n);
dirkx 0:355018f44c9f 106 }
dirkx 0:355018f44c9f 107
dirkx 0:355018f44c9f 108 #endif /* (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN) */