include/wipal/tool/endianness.hh

00001 /*
00002  * WiPal - A library and a set of tools to manipulate wireless traces.
00003  * Copyright (C) 2007  Universite Pierre et Marie Curie - Paris 6
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
00018  * MA  02110-1301  USA
00019  *
00020  * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
00021  */
00022 #ifndef TOOL_ENDIANNESS_HH_
00023 # define TOOL_ENDIANNESS_HH_
00024 
00025 extern "C"
00026 {
00027 # include <inttypes.h>
00028 }
00029 
00030 namespace tool
00031 {
00032 
00034   namespace endian
00035   {
00037     enum endianness
00038       {
00039         big,    
00040         little, 
00041         raw,    
00042         swap,   
00043         guess   
00044       };
00045 
00052     bool        need_swap(endianness tag, bool guess_swap);
00053   }
00054 
00055 
00056   /*-------.
00057   | Shorts |
00058   `-------*/
00059 
00061   uint16_t
00062   extract_unswapped_short(const void* p);
00063 
00065   uint16_t
00066   extract_swapped_short(const uint16_t s);
00067 
00070   uint16_t
00071   extract_swapped_short(const void* p);
00072 
00074   uint16_t
00075   extract_short(const uint16_t s, bool swapped);
00076 
00078   uint16_t
00079   extract_short(const void* p, bool swapped);
00080 
00082   uint16_t
00083   extract_big_endian_short(const void* p);
00084 
00085 
00086   /*------.
00087   | Longs |
00088   `------*/
00089 
00091   uint32_t
00092   extract_swapped_long_u(const uint32_t l);
00093 
00095   int32_t
00096   extract_swapped_long_s(const int32_t l);
00097 
00099   uint32_t
00100   extract_long_u(const uint32_t l, bool swapped);
00101 
00103   int32_t
00104   extract_long_s(const int32_t l, bool swapped);
00105 
00107   uint32_t
00108   extract_little_endian_long_u(const uint32_t l);
00109 
00110 } // End of namespace tool.
00111 
00112 # include "endianness.hxx"
00113 
00114 #endif // ! TOOL_ENDIANNESS_HH_

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