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-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 27. Unicode/Charsets</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"><link rel="home" href="index.html" title="SAMBA Project Documentation"><link rel="up" href="optional.html" title="Part III. Advanced Configuration"><link rel="previous" href="integrate-ms-networks.html" title="Chapter 26. Integrating MS Windows networks with Samba"><link rel="next" href="Backup.html" title="Chapter 28. Samba Backup Techniques"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 27. Unicode/Charsets</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="integrate-ms-networks.html">Prev</a> </td><th width="60%" align="center">Part III. Advanced Configuration</th><td width="20%" align="right"> <a accesskey="n" href="Backup.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="unicode"></a>Chapter 27. Unicode/Charsets</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jelmer</span> <span class="othername">R.</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><tt class="email">&lt;<a href="mailto:jelmer@samba.org">jelmer@samba.org</a>&gt;</tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">TAKAHASHI</span> <span class="surname">Motonobu</span></h3><div class="affiliation"><div class="address"><p><tt class="email">&lt;<a href="mailto:monyo@home.monyo.com">monyo@home.monyo.com</a>&gt;</tt></p></div></div></div></div><div><p class="pubdate">25 March 2003</p></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="unicode.html#id2997125">Features and Benefits</a></dt><dt><a href="unicode.html#id2997167">What are charsets and unicode?</a></dt><dt><a href="unicode.html#id2997235">Samba and charsets</a></dt><dt><a href="unicode.html#id2997336">Conversion from old names</a></dt><dt><a href="unicode.html#id2997382">Japanese charsets</a></dt></dl></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997125"></a>Features and Benefits</h2></div></div><div></div></div><p>
-Every industry eventually matures. One of the great areas of maturation is in
-the focus that has been given over the past decade to make it possible for anyone
-anywhere to use a computer. It has not always been that way, in fact, not so long
-ago it was common for software to be written for exclusive use in the country of
-origin.
-</p><p>
-Of all the effort that has been brought to bear on providing native language support
-for all computer users, the efforts of the Openi18n organisation is deserving of
-special mention. For more information about Openi18n please refer to:
-<a href="">http://www.openi18n.org/</a>.
-</p><p>
-Samba-2.x supported a single locale through a mechanism called
-<span class="emphasis"><em>codepages</em></span>. Samba-3 is destined to become a truly trans-global
-file and printer sharing platform.
-</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997167"></a>What are charsets and unicode?</h2></div></div><div></div></div><p>
-Computers communicate in numbers. In texts, each number will be
-translated to a corresponding letter. The meaning that will be assigned
-to a certain number depends on the <span class="emphasis"><em>character set(charset)
-</em></span> that is used.
-A charset can be seen as a table that is used to translate numbers to
-letters. Not all computers use the same charset (there are charsets
-with German umlauts, Japanese characters, etc). Usually a charset contains
-256 characters, which means that storing a character with it takes
-exactly one byte. </p><p>
-There are also charsets that support even more characters,
-but those need twice(or even more) as much storage space. These
-charsets can contain <b class="command">256 * 256 = 65536</b> characters, which
-is more then all possible characters one could think of. They are called
-multibyte charsets (because they use more then one byte to
-store one character).
-</p><p>
-A standardised multibyte charset is unicode, info is available at
-<a href="http://www.unicode.org/" target="_top">www.unicode.org</a>.
-A big advantage of using a multibyte charset is that you only need one; no
-need to make sure two computers use the same charset when they are
-communicating.
-</p><p>Old windows clients used to use single-byte charsets, named
-'codepages' by Microsoft. However, there is no support for
-negotiating the charset to be used in the smb protocol. Thus, you
-have to make sure you are using the same charset when talking to an old client.
-Newer clients (Windows NT, 2K, XP) talk unicode over the wire.
-</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997235"></a>Samba and charsets</h2></div></div><div></div></div><p>
-As of samba 3.0, samba can (and will) talk unicode over the wire. Internally,
-samba knows of three kinds of character sets:
-</p><div class="variablelist"><dl><dt><span class="term"><i class="parameter"><tt>unix charset</tt></i></span></dt><dd><p>
- This is the charset used internally by your operating system.
- The default is <tt class="constant">ASCII</tt>, which is fine for most
- systems.
- </p></dd><dt><span class="term"><i class="parameter"><tt>display charset</tt></i></span></dt><dd><p>This is the charset samba will use to print messages
- on your screen. It should generally be the same as the <b class="command">unix charset</b>.
- </p></dd><dt><span class="term"><i class="parameter"><tt>dos charset</tt></i></span></dt><dd><p>This is the charset samba uses when communicating with
- DOS and Windows 9x clients. It will talk unicode to all newer clients.
- The default depends on the charsets you have installed on your system.
- Run <b class="command">testparm -v | grep &quot;dos charset&quot;</b> to see
- what the default is on your system.
- </p></dd></dl></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997336"></a>Conversion from old names</h2></div></div><div></div></div><p>Because previous samba versions did not do any charset conversion,
-characters in filenames are usually not correct in the unix charset but only
-for the local charset used by the DOS/Windows clients.</p><p>The following script from Steve Langasek converts all
-filenames from CP850 to the iso8859-15 charset.</p><p>
-<tt class="prompt">#</tt><b class="userinput"><tt>find <i class="replaceable"><tt>/path/to/share</tt></i> -type f -exec bash -c 'CP=&quot;{}&quot;; ISO=`echo -n &quot;$CP&quot; | iconv -f cp850 \
- -t iso8859-15`; if [ &quot;$CP&quot; != &quot;$ISO&quot; ]; then mv &quot;$CP&quot; &quot;$ISO&quot;; fi' \;
-</tt></b>
-</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997382"></a>Japanese charsets</h2></div></div><div></div></div><p>Samba doesn't work correctly with Japanese charsets yet. Here are
-points of attention when setting it up:</p><div class="itemizedlist"><ul type="disc"><li><p>You should set <i class="parameter"><tt>mangling method =
-hash</tt></i></p></li><li><p>There are various iconv() implementations around and not
-all of them work equally well. glibc2's iconv() has a critical problem
-in CP932. libiconv-1.8 works with CP932 but still has some problems and
-does not work with EUC-JP.</p></li><li><p>You should set <i class="parameter"><tt>dos charset = CP932</tt></i>, not
-Shift_JIS, SJIS...</p></li><li><p>Currently only <i class="parameter"><tt>unix charset = CP932</tt></i>
-will work (but still has some problems...) because of iconv() issues.
-<i class="parameter"><tt>unix charset = EUC-JP</tt></i> doesn't work well because of
-iconv() issues.</p></li><li><p>Currently Samba 3.0 does not support <i class="parameter"><tt>unix charset
-= UTF8-MAC/CAP/HEX/JIS*</tt></i></p></li></ul></div><p>More information (in Japanese) is available at: <a href="http://www.atmarkit.co.jp/flinux/special/samba3/samba3a.html" target="_top">http://www.atmarkit.co.jp/flinux/special/samba3/samba3a.html</a>.</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="integrate-ms-networks.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="optional.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="Backup.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 26. Integrating MS Windows networks with Samba </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 28. Samba Backup Techniques</td></tr></table></div></body></html>