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<h1>tdsiconv.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) 2002, 2003, 2004 Brian Bruns</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 _tds_iconv_h_</span>
00021 <span class="preprocessor"></span><span class="preprocessor">#define _tds_iconv_h_</span>
00022 <span class="preprocessor"></span>
00023 <span class="comment">/* $Id: tdsiconv.h,v 1.36 2007/03/12 13:28:50 freddy77 Exp $ */</span>
00024
00025 <span class="preprocessor">#if HAVE_ICONV</span>
00026 <span class="preprocessor"></span><span class="preprocessor">#include <iconv.h></span>
00027 <span class="preprocessor">#else</span>
00028 <span class="preprocessor"></span><span class="comment">/* Define iconv_t for src/replacements/iconv.c. */</span>
00029 <span class="preprocessor">#undef iconv_t</span>
00030 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">void</span> *iconv_t;
00031 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_ICONV */</span>
00032
00033 <span class="preprocessor">#if HAVE_ERRNO_H</span>
00034 <span class="preprocessor"></span><span class="preprocessor">#include <errno.h></span>
00035 <span class="preprocessor">#endif</span>
00036 <span class="preprocessor"></span>
00037 <span class="preprocessor">#if HAVE_WCHAR_H</span>
00038 <span class="preprocessor"></span><span class="preprocessor">#include <wchar.h></span>
00039 <span class="preprocessor">#endif</span>
00040 <span class="preprocessor"></span>
00041 <span class="comment">/* The following EILSEQ advice is borrowed verbatim from GNU iconv. */</span>
00042 <span class="comment">/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,</span>
00043 <span class="comment"> have EILSEQ in a different header. On these systems, define EILSEQ</span>
00044 <span class="comment"> ourselves. */</span>
00045 <span class="preprocessor">#ifndef EILSEQ</span>
00046 <span class="preprocessor"></span><span class="preprocessor"># define EILSEQ ENOENT</span>
00047 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00048 <span class="preprocessor"></span>
00049 <span class="preprocessor">#if HAVE_STDLIB_H</span>
00050 <span class="preprocessor"></span><span class="preprocessor">#include <stdlib.h></span>
00051 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_STDLIB_H */</span>
00052
00053 <span class="preprocessor">#if defined(__GNUC__) && __GNUC__ >= 4</span>
00054 <span class="preprocessor"></span><span class="preprocessor">#pragma GCC visibility push(hidden)</span>
00055 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00056 <span class="preprocessor"></span>
00057 <span class="preprocessor">#ifdef __cplusplus</span>
00058 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span>
00059 {
00060 <span class="preprocessor">#endif</span>
00061 <span class="preprocessor"></span>
00062 <span class="preprocessor">#if ! HAVE_ICONV</span>
00063 <span class="preprocessor"></span>
00064 <span class="comment">/* FYI, the first 4 entries look like this:</span>
00065 <span class="comment"> * {"ISO-8859-1", 1, 1}, -> 0</span>
00066 <span class="comment"> * {"US-ASCII", 1, 4}, -> 1</span>
00067 <span class="comment"> * {"UCS-2LE", 2, 2}, -> 2</span>
00068 <span class="comment"> * {"UCS-2BE", 2, 2}, -> 3</span>
00069 <span class="comment"> *</span>
00070 <span class="comment"> * These conversions are supplied by src/replacements/iconv.c for the sake of those who don't </span>
00071 <span class="comment"> * have or otherwise need an iconv.</span>
00072 <span class="comment"> */</span>
00073 <span class="keyword">enum</span> ICONV_CD_VALUE
00074 {
00075 Like_to_Like = 0x100
00076 , Latin1_ASCII = 0x01
00077 , ASCII_Latin1 = 0x10
00078
00079 , Latin1_UCS2LE = 0x02
00080 , UCS2LE_Latin1 = 0x20
00081 , ASCII_UCS2LE = 0x12
00082 , UCS2LE_ASCII = 0x21
00083
00084 , Latin1_UTF8 = 0x03
00085 , UTF8_Latin1 = 0x30
00086 , ASCII_UTF8 = 0x13
00087 , UTF8_ASCII = 0x31
00088 , UCS2LE_UTF8 = 0x23
00089 , UTF8_UCS2LE = 0x32
00090
00091 <span class="preprocessor">#ifdef DOS32X</span>
00092 <span class="preprocessor"></span> , WinEE_UCS2LE = 0x42
00093 , UCS2LE_WinEE = 0x24
00094 , WinCYR_UCS2LE = 0x52
00095 , UCS2LE_WinCYR = 0x25
00096 , WinTUR_UCS2LE = 0x62
00097 , UCS2LE_WinTUR = 0x26
00098 , WinARA_UCS2LE = 0x72
00099 , UCS2LE_WinARA = 0x27
00100 <span class="preprocessor">#endif</span>
00101 <span class="preprocessor"></span> <span class="comment">/* these aren't needed </span>
00102 <span class="comment"> * , Latin1_UCS2BE = 0x03</span>
00103 <span class="comment"> * , UCS2BE_Latin1 = 0x30</span>
00104 <span class="comment"> */</span>
00105 };
00106
00107 iconv_t <a class="code" href="a00288.html#ga0">tds_sys_iconv_open</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *tocode, <span class="keyword">const</span> <span class="keywordtype">char</span> *fromcode);
00108 size_t tds_sys_iconv(iconv_t cd, <span class="keyword">const</span> <span class="keywordtype">char</span> **inbuf, size_t * inbytesleft, <span class="keywordtype">char</span> **outbuf, size_t * outbytesleft);
00109 <span class="keywordtype">int</span> tds_sys_iconv_close(iconv_t cd);
00110 <span class="preprocessor">#else</span>
00111 <span class="preprocessor"></span><span class="preprocessor">#define tds_sys_iconv_open iconv_open</span>
00112 <span class="preprocessor"></span><span class="preprocessor">#define tds_sys_iconv iconv</span>
00113 <span class="preprocessor"></span><span class="preprocessor">#define tds_sys_iconv_close iconv_close</span>
00114 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* !HAVE_ICONV */</span>
00115
00116
00117 <span class="keyword">typedef</span> <span class="keyword">enum</span>
00118 { to_server, to_client } TDS_ICONV_DIRECTION;
00119
00120 <span class="keyword">typedef</span> <span class="keyword">struct </span>_character_set_alias
00121 {
00122 <span class="keyword">const</span> <span class="keywordtype">char</span> *alias;
00123 <span class="keywordtype">int</span> canonic;
00124 } CHARACTER_SET_ALIAS;
00125
00126 <span class="keyword">typedef</span> <span class="keyword">struct </span>_tds_errno_message_flags {
00127 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> e2big:1;
00128 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> eilseq:1;
00129 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> einval:1;
00130 } TDS_ERRNO_MESSAGE_FLAGS;
00131
00132 <span class="keyword">struct </span>tdsiconvinfo
00133 {
00134 <a class="code" href="a00136.html">TDS_ENCODING</a> client_charset;
00135 <a class="code" href="a00136.html">TDS_ENCODING</a> server_charset;
00136
00137 <span class="preprocessor">#define TDS_ENCODING_INDIRECT 1</span>
00138 <span class="preprocessor"></span><span class="preprocessor">#define TDS_ENCODING_SWAPBYTE 2</span>
00139 <span class="preprocessor"></span><span class="preprocessor">#define TDS_ENCODING_MEMCPY 4</span>
00140 <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flags;
00141
00142 iconv_t to_wire; <span class="comment">/* conversion from client charset to server's format */</span>
00143 iconv_t from_wire; <span class="comment">/* conversion from server's format to client charset */</span>
00144
00145 iconv_t to_wire2; <span class="comment">/* conversion from client charset to server's format - indirect */</span>
00146 iconv_t from_wire2; <span class="comment">/* conversion from server's format to client charset - indirect */</span>
00147
00148 <span class="comment">/* </span>
00149 <span class="comment"> * Suppress error messages that would otherwise be emitted by tds_iconv().</span>
00150 <span class="comment"> * Functions that process large buffers ask tds_iconv to convert it in "chunks".</span>
00151 <span class="comment"> * We don't want to emit spurious EILSEQ errors or multiple errors for one </span>
00152 <span class="comment"> * buffer. tds_iconv() checks this structure before emiting a message, and </span>
00153 <span class="comment"> * adds to it whenever it emits one. Callers that handle a particular situation themselves</span>
00154 <span class="comment"> * can prepopulate it. </span>
00155 <span class="comment"> */</span>
00156 TDS_ERRNO_MESSAGE_FLAGS suppress;
00157 };
00158
00159 <span class="comment">/* We use ICONV_CONST for tds_iconv(), even if we don't have iconv() */</span>
00160 <span class="preprocessor">#ifndef ICONV_CONST</span>
00161 <span class="preprocessor"></span><span class="preprocessor"># define ICONV_CONST const</span>
00162 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00163 <span class="preprocessor"></span>
00164 size_t <a class="code" href="a00288.html#ga10">tds_iconv_fread</a>(iconv_t cd, FILE * stream, size_t field_len, size_t term_len, <span class="keywordtype">char</span> *outbuf, size_t * outbytesleft);
00165 size_t <a class="code" href="a00288.html#ga9">tds_iconv</a>(<a class="code" href="a00144.html">TDSSOCKET</a> * tds, <span class="keyword">const</span> TDSICONV * char_conv, TDS_ICONV_DIRECTION io,
00166 <span class="keyword">const</span> <span class="keywordtype">char</span> **inbuf, size_t * inbytesleft, <span class="keywordtype">char</span> **outbuf, size_t * outbytesleft);
00167 <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="a00288.html#ga17">tds_canonical_charset_name</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *charset_name);
00168 <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="a00288.html#ga18">tds_sybase_charset_name</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *charset_name);
00169
00170 <span class="preprocessor">#ifdef __cplusplus</span>
00171 <span class="preprocessor"></span>}
00172 <span class="preprocessor">#endif</span>
00173 <span class="preprocessor"></span>
00174 <span class="preprocessor">#if defined(__GNUC__) && __GNUC__ >= 4</span>
00175 <span class="preprocessor"></span><span class="preprocessor">#pragma GCC visibility pop</span>
00176 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00177 <span class="preprocessor"></span>
00178 <span class="preprocessor">#endif </span><span class="comment">/* _tds_iconv_h_ */</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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