mirror of
https://github.com/curl/curl.git
synced 2024-12-09 06:30:06 +08:00
125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#include "curl_endian.h"
|
|
|
|
/*
|
|
* Curl_read16_le()
|
|
*
|
|
* This function converts a 16-bit integer from the little endian format, as
|
|
* used in the incoming package to whatever endian format we're using
|
|
* natively.
|
|
*
|
|
* Parameters:
|
|
*
|
|
* buf [in] - A pointer to a 2 byte buffer.
|
|
*
|
|
* Returns the integer.
|
|
*/
|
|
unsigned short Curl_read16_le(const unsigned char *buf)
|
|
{
|
|
return (unsigned short)(((unsigned short)buf[0]) |
|
|
((unsigned short)buf[1] << 8));
|
|
}
|
|
|
|
/*
|
|
* Curl_read32_le()
|
|
*
|
|
* This function converts a 32-bit integer from the little endian format, as
|
|
* used in the incoming package to whatever endian format we're using
|
|
* natively.
|
|
*
|
|
* Parameters:
|
|
*
|
|
* buf [in] - A pointer to a 4 byte buffer.
|
|
*
|
|
* Returns the integer.
|
|
*/
|
|
unsigned int Curl_read32_le(const unsigned char *buf)
|
|
{
|
|
return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) |
|
|
((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24);
|
|
}
|
|
|
|
/*
|
|
* Curl_read16_be()
|
|
*
|
|
* This function converts a 16-bit integer from the big endian format, as
|
|
* used in the incoming package to whatever endian format we're using
|
|
* natively.
|
|
*
|
|
* Parameters:
|
|
*
|
|
* buf [in] - A pointer to a 2 byte buffer.
|
|
*
|
|
* Returns the integer.
|
|
*/
|
|
unsigned short Curl_read16_be(const unsigned char *buf)
|
|
{
|
|
return (unsigned short)(((unsigned short)buf[0] << 8) |
|
|
((unsigned short)buf[1]));
|
|
}
|
|
|
|
/*
|
|
* Curl_write32_le()
|
|
*
|
|
* This function converts a 32-bit integer from the native endian format,
|
|
* to little endian format ready for sending down the wire.
|
|
*
|
|
* Parameters:
|
|
*
|
|
* value [in] - The 32-bit integer value.
|
|
* buffer [in] - A pointer to the output buffer.
|
|
*/
|
|
void Curl_write32_le(const int value, unsigned char *buffer)
|
|
{
|
|
buffer[0] = (char)(value & 0x000000FF);
|
|
buffer[1] = (char)((value & 0x0000FF00) >> 8);
|
|
buffer[2] = (char)((value & 0x00FF0000) >> 16);
|
|
buffer[3] = (char)((value & 0xFF000000) >> 24);
|
|
}
|
|
|
|
#if (CURL_SIZEOF_CURL_OFF_T > 4)
|
|
/*
|
|
* Curl_write64_le()
|
|
*
|
|
* This function converts a 64-bit integer from the native endian format,
|
|
* to little endian format ready for sending down the wire.
|
|
*
|
|
* Parameters:
|
|
*
|
|
* value [in] - The 64-bit integer value.
|
|
* buffer [in] - A pointer to the output buffer.
|
|
*/
|
|
#if defined(HAVE_LONGLONG)
|
|
void Curl_write64_le(const long long value, unsigned char *buffer)
|
|
#else
|
|
void Curl_write64_le(const __int64 value, unsigned char *buffer)
|
|
#endif
|
|
{
|
|
Curl_write32_le((int)value, buffer);
|
|
Curl_write32_le((int)(value >> 32), buffer + 4);
|
|
}
|
|
#endif /* CURL_SIZEOF_CURL_OFF_T > 4 */
|