Line data    Source code

       1              : /* cdb_unpack.c: unpack a 32bit integer from network byte order
       2              :  *
       3              :  * This file is a part of tinycdb package.
       4              :  * Copyright (C) 2001-2023 Michael Tokarev <mjt+cdb@corpit.ru>
       5              :  *
       6              :  * Permission is hereby granted, free of charge, to any person obtaining a
       7              :  * copy of this software and associated documentation files (the "Software"),
       8              :  * to deal in the Software without restriction, including without limitation
       9              :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      10              :  * and/or sell copies of the Software, and to permit persons to whom the
      11              :  * Software is furnished to do so, subject to the following conditions:
      12              :  *
      13              :  * The above copyright notice and this permission notice shall be included
      14              :  * in all copies or substantial portions of the Software.
      15              :  *
      16              :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      17              :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      18              :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
      19              :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      20              :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      21              :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      22              :  * DEALINGS IN THE SOFTWARE.
      23              :  */
      24              : 
      25              : #include "cdb.h"
      26              : 
      27              : unsigned
      28          158 : cdb_unpack(const unsigned char buf[4])
      29              : {
      30          158 :   unsigned n = buf[3];
      31          158 :   n <<= 8; n |= buf[2];
      32          158 :   n <<= 8; n |= buf[1];
      33          158 :   n <<= 8; n |= buf[0];
      34          158 :   return n;
      35              : }