quickjs-tart

quickjs-based runtime for wallet-core logic
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curl_endian.c (2505B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 
     25 #include "curl_setup.h"
     26 
     27 #include "curl_endian.h"
     28 
     29 /*
     30  * Curl_read16_le()
     31  *
     32  * This function converts a 16-bit integer from the little endian format, as
     33  * used in the incoming package to whatever endian format we are using
     34  * natively.
     35  *
     36  * Parameters:
     37  *
     38  * buf      [in]     - A pointer to a 2 byte buffer.
     39  *
     40  * Returns the integer.
     41  */
     42 unsigned short Curl_read16_le(const unsigned char *buf)
     43 {
     44   return (unsigned short)(((unsigned short)buf[0]) |
     45                           ((unsigned short)buf[1] << 8));
     46 }
     47 
     48 /*
     49  * Curl_read32_le()
     50  *
     51  * This function converts a 32-bit integer from the little endian format, as
     52  * used in the incoming package to whatever endian format we are using
     53  * natively.
     54  *
     55  * Parameters:
     56  *
     57  * buf      [in]     - A pointer to a 4 byte buffer.
     58  *
     59  * Returns the integer.
     60  */
     61 unsigned int Curl_read32_le(const unsigned char *buf)
     62 {
     63   return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) |
     64          ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24);
     65 }
     66 
     67 /*
     68  * Curl_read16_be()
     69  *
     70  * This function converts a 16-bit integer from the big endian format, as
     71  * used in the incoming package to whatever endian format we are using
     72  * natively.
     73  *
     74  * Parameters:
     75  *
     76  * buf      [in]     - A pointer to a 2 byte buffer.
     77  *
     78  * Returns the integer.
     79  */
     80 unsigned short Curl_read16_be(const unsigned char *buf)
     81 {
     82   return (unsigned short)(((unsigned short)buf[0] << 8) |
     83                           ((unsigned short)buf[1]));
     84 }