<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>FreeTDS API: /usr/local/users/home/jklowden/projects/releases/freetds/0.82/include/tdsbytes.h Source File</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.4.1 --> <div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a> | <a class="qindex" href="pages.html">Related Pages</a></div> <div class="nav"> <a class="el" href="dir_000000.html">include</a></div> <h1>tdsbytes.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">/* FreeTDS - Library of routines accessing Sybase and Microsoft databases</span> 00002 <span class="comment"> * Copyright (C) 2005 Frediano Ziglio</span> 00003 <span class="comment"> *</span> 00004 <span class="comment"> * This library is free software; you can redistribute it and/or</span> 00005 <span class="comment"> * modify it under the terms of the GNU Library General Public</span> 00006 <span class="comment"> * License as published by the Free Software Foundation; either</span> 00007 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span> 00008 <span class="comment"> *</span> 00009 <span class="comment"> * This library is distributed in the hope that it will be useful,</span> 00010 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span> 00011 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span> 00012 <span class="comment"> * Library General Public License for more details.</span> 00013 <span class="comment"> *</span> 00014 <span class="comment"> * You should have received a copy of the GNU Library General Public</span> 00015 <span class="comment"> * License along with this library; if not, write to the</span> 00016 <span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330,</span> 00017 <span class="comment"> * Boston, MA 02111-1307, USA.</span> 00018 <span class="comment"> */</span> 00019 00020 <span class="preprocessor">#ifndef _tdsbytes_h_</span> 00021 <span class="preprocessor"></span><span class="preprocessor">#define _tdsbytes_h_</span> 00022 <span class="preprocessor"></span> 00023 <span class="comment">/* $Id: tdsbytes.h,v 1.2 2005/08/10 12:06:03 freddy77 Exp $ */</span> 00024 00025 <span class="preprocessor">#ifndef _tds_h_</span> 00026 <span class="preprocessor"></span><span class="preprocessor">#error tds.h must be included before tdsbytes.h</span> 00027 <span class="preprocessor"></span><span class="preprocessor">#endif</span> 00028 <span class="preprocessor"></span> 00029 <span class="comment">/*</span> 00030 <span class="comment"> * read a word of n bytes aligned, architecture dependent endian</span> 00031 <span class="comment"> * TDS_GET_An</span> 00032 <span class="comment"> * read a word of n bytes aligned, little endian</span> 00033 <span class="comment"> * TDS_GET_AnLE</span> 00034 <span class="comment"> * read a word of n bytes aligned, big endian</span> 00035 <span class="comment"> * TDS_GET_AnBE</span> 00036 <span class="comment"> * read a word of n bytes unaligned, architecture dependent endian</span> 00037 <span class="comment"> * TDS_GET_UAn</span> 00038 <span class="comment"> * read a word of n bytes unaligned, little endian</span> 00039 <span class="comment"> * TDS_GET_UAnLE</span> 00040 <span class="comment"> * read a word of n bytes unaligned, big endian</span> 00041 <span class="comment"> * TDS_GET_UAnBE</span> 00042 <span class="comment"> */</span> 00043 00044 <span class="comment">/* TODO optimize (use swap, unaligned platforms) */</span> 00045 00046 <span class="comment">/* one byte, easy... */</span> 00047 <span class="preprocessor">#define TDS_GET_A1LE(ptr) (((TDS_UCHAR*)(ptr))[0])</span> 00048 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_A1BE(ptr) TDS_GET_A1LE(ptr)</span> 00049 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_UA1LE(ptr) TDS_GET_A1LE(ptr)</span> 00050 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_UA1BE(ptr) TDS_GET_A1LE(ptr)</span> 00051 <span class="preprocessor"></span> 00052 <span class="preprocessor">#define TDS_PUT_A1LE(ptr,val) do { ((TDS_UCHAR*)(ptr))[0] = (val); } while(0)</span> 00053 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_A1BE(ptr,val) TDS_PUT_A1LE(ptr,val)</span> 00054 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_UA1LE(ptr,val) TDS_PUT_A1LE(ptr,val)</span> 00055 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_UA1BE(ptr,val) TDS_PUT_A1LE(ptr,val)</span> 00056 <span class="preprocessor"></span> 00057 <span class="comment">/* two bytes */</span> 00058 <span class="preprocessor">#define TDS_GET_UA2LE(ptr) (((TDS_UCHAR*)(ptr))[1] * 0x100u + ((TDS_UCHAR*)(ptr))[0])</span> 00059 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_UA2BE(ptr) (((TDS_UCHAR*)(ptr))[0] * 0x100u + ((TDS_UCHAR*)(ptr))[1])</span> 00060 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_A2LE(ptr) TDS_GET_UA2LE(ptr)</span> 00061 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_A2BE(ptr) TDS_GET_UA2BE(ptr)</span> 00062 <span class="preprocessor"></span> 00063 <span class="preprocessor">#define TDS_PUT_UA2LE(ptr,val) do {\</span> 00064 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[1] = (val)>>8; ((TDS_UCHAR*)(ptr))[0] = (val); } while(0)</span> 00065 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_UA2BE(ptr,val) do {\</span> 00066 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[0] = (val)>>8; ((TDS_UCHAR*)(ptr))[1] = (val); } while(0)</span> 00067 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_A2LE(ptr,val) TDS_PUT_UA2LE(ptr,val)</span> 00068 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_A2BE(ptr,val) TDS_PUT_UA2BE(ptr,val)</span> 00069 <span class="preprocessor"></span> 00070 <span class="comment">/* four bytes */</span> 00071 <span class="preprocessor">#define TDS_GET_UA4LE(ptr) \</span> 00072 <span class="preprocessor"> (((TDS_UCHAR*)(ptr))[3] * 0x1000000u + ((TDS_UCHAR*)(ptr))[2] * 0x10000u +\</span> 00073 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[1] * 0x100u + ((TDS_UCHAR*)(ptr))[0])</span> 00074 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_UA4BE(ptr) \</span> 00075 <span class="preprocessor"> (((TDS_UCHAR*)(ptr))[0] * 0x1000000u + ((TDS_UCHAR*)(ptr))[1] * 0x10000u +\</span> 00076 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[2] * 0x100u + ((TDS_UCHAR*)(ptr))[3])</span> 00077 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_A4LE(ptr) TDS_GET_UA4LE(ptr)</span> 00078 <span class="preprocessor"></span><span class="preprocessor">#define TDS_GET_A4BE(ptr) TDS_GET_UA4BE(ptr)</span> 00079 <span class="preprocessor"></span> 00080 <span class="preprocessor">#define TDS_PUT_UA4LE(ptr,val) do {\</span> 00081 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[3] = (val)>>24; ((TDS_UCHAR*)(ptr))[2] = (val)>>16;\</span> 00082 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[1] = (val)>>8; ((TDS_UCHAR*)(ptr))[0] = (val); } while(0)</span> 00083 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_UA4BE(ptr,val) do {\</span> 00084 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[0] = (val)>>24; ((TDS_UCHAR*)(ptr))[1] = (val)>>16;\</span> 00085 <span class="preprocessor"> ((TDS_UCHAR*)(ptr))[2] = (val)>>8; ((TDS_UCHAR*)(ptr))[3] = (val); } while(0)</span> 00086 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_A4LE(ptr,val) TDS_PUT_UA4LE(ptr,val)</span> 00087 <span class="preprocessor"></span><span class="preprocessor">#define TDS_PUT_A4BE(ptr,val) TDS_PUT_UA4BE(ptr,val)</span> 00088 <span class="preprocessor"></span> 00089 <span class="comment">/* architecture dependent */</span> 00090 <span class="preprocessor">#ifdef WORDS_BIGENDIAN</span> 00091 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A1(ptr) TDS_GET_A1BE(ptr)</span> 00092 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA1(ptr) TDS_GET_UA1BE(ptr)</span> 00093 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A2(ptr) TDS_GET_A2BE(ptr)</span> 00094 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA2(ptr) TDS_GET_UA2BE(ptr)</span> 00095 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A4(ptr) TDS_GET_A4BE(ptr)</span> 00096 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA4(ptr) TDS_GET_UA4BE(ptr)</span> 00097 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_A2BE</span> 00098 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_A4BE</span> 00099 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A2BE(ptr) (*((TDS_USMALLINT*)(ptr)))</span> 00100 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A4BE(ptr) (*((TDS_UINT*)(ptr)))</span> 00101 <span class="preprocessor"></span> 00102 <span class="preprocessor"># define TDS_PUT_A1(ptr,val) TDS_PUT_A1BE(ptr,val)</span> 00103 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA1(ptr,val) TDS_PUT_UA1BE(ptr,val)</span> 00104 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A2(ptr,val) TDS_PUT_A2BE(ptr,val)</span> 00105 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA2(ptr,val) TDS_PUT_UA2BE(ptr,val)</span> 00106 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A4(ptr,val) TDS_PUT_A4BE(ptr,val)</span> 00107 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA4(ptr,val) TDS_PUT_UA4BE(ptr,val)</span> 00108 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_A2BE</span> 00109 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_A4BE</span> 00110 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A2BE(ptr,val) (*((TDS_USMALLINT*)(ptr)) = (val))</span> 00111 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A4BE(ptr,val) (*((TDS_UINT*)(ptr)) = (val))</span> 00112 <span class="preprocessor"></span><span class="preprocessor">#else</span> 00113 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A1(ptr) TDS_GET_A1LE(ptr)</span> 00114 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA1(ptr) TDS_GET_UA1LE(ptr)</span> 00115 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A2(ptr) TDS_GET_A2LE(ptr)</span> 00116 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA2(ptr) TDS_GET_UA2LE(ptr)</span> 00117 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A4(ptr) TDS_GET_A4LE(ptr)</span> 00118 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA4(ptr) TDS_GET_UA4LE(ptr)</span> 00119 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_A2LE</span> 00120 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_A4LE</span> 00121 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A2LE(ptr) (*((TDS_USMALLINT*)(ptr)))</span> 00122 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_A4LE(ptr) (*((TDS_UINT*)(ptr)))</span> 00123 <span class="preprocessor"></span> 00124 <span class="preprocessor"># define TDS_PUT_A1(ptr,val) TDS_PUT_A1LE(ptr,val)</span> 00125 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA1(ptr,val) TDS_PUT_UA1LE(ptr,val)</span> 00126 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A2(ptr,val) TDS_PUT_A2LE(ptr,val)</span> 00127 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA2(ptr,val) TDS_PUT_UA2LE(ptr,val)</span> 00128 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A4(ptr,val) TDS_PUT_A4LE(ptr,val)</span> 00129 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA4(ptr,val) TDS_PUT_UA4LE(ptr,val)</span> 00130 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_A2LE</span> 00131 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_A4LE</span> 00132 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A2LE(ptr,val) (*((TDS_USMALLINT*)(ptr)) = (val))</span> 00133 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_A4LE(ptr,val) (*((TDS_UINT*)(ptr)) = (val))</span> 00134 <span class="preprocessor"></span><span class="preprocessor">#endif</span> 00135 <span class="preprocessor"></span> 00136 <span class="comment">/* these platform support unaligned fetch/store */</span> 00137 <span class="preprocessor">#if defined(__i386__) || defined(__amd64__) || defined(__CRIS__) ||\</span> 00138 <span class="preprocessor"> defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__) || defined(__ppc64__) ||\</span> 00139 <span class="preprocessor"> defined(__s390__) || defined(__s390x__) || defined(__m68k__)</span> 00140 <span class="preprocessor"></span><span class="preprocessor"># ifdef WORDS_BIGENDIAN</span> 00141 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_UA2BE</span> 00142 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_UA4BE</span> 00143 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA2BE(ptr) TDS_GET_A2BE(ptr)</span> 00144 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA4BE(ptr) TDS_GET_A4BE(ptr)</span> 00145 <span class="preprocessor"></span> 00146 <span class="preprocessor"># undef TDS_PUT_UA2BE</span> 00147 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_UA4BE</span> 00148 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA2BE(ptr,val) TDS_PUT_A2BE(ptr,val)</span> 00149 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA4BE(ptr,val) TDS_PUT_A4BE(ptr,val)</span> 00150 <span class="preprocessor"></span><span class="preprocessor"># else</span> 00151 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_UA2LE</span> 00152 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_UA4LE</span> 00153 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA2LE(ptr) TDS_GET_A2LE(ptr)</span> 00154 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA4LE(ptr) TDS_GET_A4LE(ptr)</span> 00155 <span class="preprocessor"></span> 00156 <span class="preprocessor"># undef TDS_PUT_UA2LE</span> 00157 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_UA4LE</span> 00158 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA2LE(ptr,val) TDS_PUT_A2LE(ptr,val)</span> 00159 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA4LE(ptr,val) TDS_PUT_A4LE(ptr,val)</span> 00160 <span class="preprocessor"></span><span class="preprocessor"># endif</span> 00161 <span class="preprocessor"></span><span class="preprocessor">#endif</span> 00162 <span class="preprocessor"></span> 00163 <span class="preprocessor">#if defined(__linux__) && defined(__GNUC__) && defined(__i386__)</span> 00164 <span class="preprocessor"></span><span class="preprocessor"># include <byteswap.h></span> 00165 <span class="preprocessor"># undef TDS_GET_UA2BE</span> 00166 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_GET_UA4BE</span> 00167 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA2BE(ptr) ({ TDS_USMALLINT _tds_si = TDS_GET_UA2LE(ptr); bswap_16(_tds_si); })</span> 00168 <span class="preprocessor"></span><span class="preprocessor"># define TDS_GET_UA4BE(ptr) ({ TDS_UINT _tds_i = TDS_GET_UA4LE(ptr); bswap_32(_tds_i); })</span> 00169 <span class="preprocessor"></span> 00170 <span class="preprocessor"># undef TDS_PUT_UA2BE</span> 00171 <span class="preprocessor"></span><span class="preprocessor"># undef TDS_PUT_UA4BE</span> 00172 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA2BE(ptr,val) do {\</span> 00173 <span class="preprocessor"> TDS_USMALLINT _tds_si = bswap_16(val); TDS_PUT_UA2LE(ptr,_tds_si); } while(0)</span> 00174 <span class="preprocessor"></span><span class="preprocessor"># define TDS_PUT_UA4BE(ptr,val) do {\</span> 00175 <span class="preprocessor"> TDS_UINT _tds_i = bswap_32(val); TDS_PUT_UA4LE(ptr,_tds_i); } while(0)</span> 00176 <span class="preprocessor"></span><span class="preprocessor">#endif</span> 00177 <span class="preprocessor"></span> 00178 <span class="preprocessor">#endif</span> </pre></div><hr size="1"><address style="align: right;"><small>Generated on Wed May 7 19:22:09 2008 for FreeTDS API by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.1 </small></address> </body> </html>