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<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
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