From 3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Thu, 23 Aug 2018 17:08:59 +0200 Subject: o Initial import. --- .../external/lwip/src/core/def.c | 222 +++++++++++++++++++++ 1 file changed, 222 insertions(+) create mode 100644 thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/core/def.c (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/core/def.c') diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/core/def.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/core/def.c new file mode 100644 index 0000000..8125313 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/core/def.c @@ -0,0 +1,222 @@ +/** + * @file + * Common functions used throughout the stack. + * + * These are reference implementations of the byte swapping functions. + * Again with the aim of being simple, correct and fully portable. + * Byte swapping is the second thing you would want to optimize. You will + * need to port it to your architecture and in your cc.h: + * + * \#define lwip_htons(x) your_htons + * \#define lwip_htonl(x) your_htonl + * + * Note lwip_ntohs() and lwip_ntohl() are merely references to the htonx counterparts. + * + * If you \#define them to htons() and htonl(), you should + * \#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS to prevent lwIP from + * defining htonx/ntohx compatibility macros. + + * @defgroup sys_nonstandard Non-standard functions + * @ingroup sys_layer + * lwIP provides default implementations for non-standard functions. + * These can be mapped to OS functions to reduce code footprint if desired. + * All defines related to this section must not be placed in lwipopts.h, + * but in arch/cc.h! + * These options cannot be \#defined in lwipopts.h since they are not options + * of lwIP itself, but options of the lwIP port to your system. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "lwip/def.h" + +#include + +#if BYTE_ORDER == LITTLE_ENDIAN + +#if !defined(lwip_htons) +/** + * Convert an u16_t from host- to network byte order. + * + * @param n u16_t in host byte order + * @return n in network byte order + */ +u16_t +lwip_htons(u16_t n) +{ + return (u16_t)PP_HTONS(n); +} +#endif /* lwip_htons */ + +#if !defined(lwip_htonl) +/** + * Convert an u32_t from host- to network byte order. + * + * @param n u32_t in host byte order + * @return n in network byte order + */ +u32_t +lwip_htonl(u32_t n) +{ + return (u32_t)PP_HTONL(n); +} +#endif /* lwip_htonl */ + +#endif /* BYTE_ORDER == LITTLE_ENDIAN */ + +#ifndef lwip_strnstr +/** + * @ingroup sys_nonstandard + * lwIP default implementation for strnstr() non-standard function. + * This can be \#defined to strnstr() depending on your platform port. + */ +char* +lwip_strnstr(const char* buffer, const char* token, size_t n) +{ + const char* p; + size_t tokenlen = strlen(token); + if (tokenlen == 0) { + return LWIP_CONST_CAST(char *, buffer); + } + for (p = buffer; *p && (p + tokenlen <= buffer + n); p++) { + if ((*p == *token) && (strncmp(p, token, tokenlen) == 0)) { + return LWIP_CONST_CAST(char *, p); + } + } + return NULL; +} +#endif + +#ifndef lwip_stricmp +/** + * @ingroup sys_nonstandard + * lwIP default implementation for stricmp() non-standard function. + * This can be \#defined to stricmp() depending on your platform port. + */ +int +lwip_stricmp(const char* str1, const char* str2) +{ + char c1, c2; + + do { + c1 = *str1++; + c2 = *str2++; + if (c1 != c2) { + char c1_upc = c1 | 0x20; + if ((c1_upc >= 'a') && (c1_upc <= 'z')) { + /* characters are not equal an one is in the alphabet range: + downcase both chars and check again */ + char c2_upc = c2 | 0x20; + if (c1_upc != c2_upc) { + /* still not equal */ + /* don't care for < or > */ + return 1; + } + } else { + /* characters are not equal but none is in the alphabet range */ + return 1; + } + } + } while (c1 != 0); + return 0; +} +#endif + +#ifndef lwip_strnicmp +/** + * @ingroup sys_nonstandard + * lwIP default implementation for strnicmp() non-standard function. + * This can be \#defined to strnicmp() depending on your platform port. + */ +int +lwip_strnicmp(const char* str1, const char* str2, size_t len) +{ + char c1, c2; + + do { + c1 = *str1++; + c2 = *str2++; + if (c1 != c2) { + char c1_upc = c1 | 0x20; + if ((c1_upc >= 'a') && (c1_upc <= 'z')) { + /* characters are not equal an one is in the alphabet range: + downcase both chars and check again */ + char c2_upc = c2 | 0x20; + if (c1_upc != c2_upc) { + /* still not equal */ + /* don't care for < or > */ + return 1; + } + } else { + /* characters are not equal but none is in the alphabet range */ + return 1; + } + } + } while (len-- && c1 != 0); + return 0; +} +#endif + +#ifndef lwip_itoa +/** + * @ingroup sys_nonstandard + * lwIP default implementation for itoa() non-standard function. + * This can be \#defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform port. + */ +void +lwip_itoa(char* result, size_t bufsize, int number) +{ + const int base = 10; + char* ptr = result, *ptr1 = result, tmp_char; + int tmp_value; + LWIP_UNUSED_ARG(bufsize); + + do { + tmp_value = number; + number /= base; + *ptr++ = "zyxwvutsrqponmlkjihgfedcba9876543210123456789abcdefghijklmnopqrstuvwxyz"[35 + (tmp_value - number * base)]; + } while(number); + + /* Apply negative sign */ + if (tmp_value < 0) { + *ptr++ = '-'; + } + *ptr-- = '\0'; + while(ptr1 < ptr) { + tmp_char = *ptr; + *ptr--= *ptr1; + *ptr1++ = tmp_char; + } +} +#endif -- cgit v1.2.3