| 1 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> |
| 2 | <html> |
| 3 | <head> |
| 4 | <link rel="STYLESHEET" href="lib.css" type='text/css' /> |
| 5 | <link rel="SHORTCUT ICON" href="../icons/pyfav.png" type="image/png" /> |
| 6 | <link rel='start' href='../index.html' title='Python Documentation Index' /> |
| 7 | <link rel="first" href="lib.html" title='Python Library Reference' /> |
| 8 | <link rel='contents' href='contents.html' title="Contents" /> |
| 9 | <link rel='index' href='genindex.html' title='Index' /> |
| 10 | <link rel='last' href='about.html' title='About this document...' /> |
| 11 | <link rel='help' href='about.html' title='About this document...' /> |
| 12 | <link rel="next" href="module-netrc.html" /> |
| 13 | <link rel="prev" href="module-uu.html" /> |
| 14 | <link rel="parent" href="netdata.html" /> |
| 15 | <link rel="next" href="xdr-packer-objects.html" /> |
| 16 | <meta name='aesop' content='information' /> |
| 17 | <title>12.17 xdrlib -- Encode and decode XDR data</title> |
| 18 | </head> |
| 19 | <body> |
| 20 | <DIV CLASS="navigation"> |
| 21 | <div id='top-navigation-panel' xml:id='top-navigation-panel'> |
| 22 | <table align="center" width="100%" cellpadding="0" cellspacing="2"> |
| 23 | <tr> |
| 24 | <td class='online-navigation'><a rel="prev" title="12.16 uu " |
| 25 | href="module-uu.html"><img src='../icons/previous.png' |
| 26 | border='0' height='32' alt='Previous Page' width='32' /></A></td> |
| 27 | <td class='online-navigation'><a rel="parent" title="12. Internet Data Handling" |
| 28 | href="netdata.html"><img src='../icons/up.png' |
| 29 | border='0' height='32' alt='Up One Level' width='32' /></A></td> |
| 30 | <td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects" |
| 31 | href="xdr-packer-objects.html"><img src='../icons/next.png' |
| 32 | border='0' height='32' alt='Next Page' width='32' /></A></td> |
| 33 | <td align="center" width="100%">Python Library Reference</td> |
| 34 | <td class='online-navigation'><a rel="contents" title="Table of Contents" |
| 35 | href="contents.html"><img src='../icons/contents.png' |
| 36 | border='0' height='32' alt='Contents' width='32' /></A></td> |
| 37 | <td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png' |
| 38 | border='0' height='32' alt='Module Index' width='32' /></a></td> |
| 39 | <td class='online-navigation'><a rel="index" title="Index" |
| 40 | href="genindex.html"><img src='../icons/index.png' |
| 41 | border='0' height='32' alt='Index' width='32' /></A></td> |
| 42 | </tr></table> |
| 43 | <div class='online-navigation'> |
| 44 | <b class="navlabel">Previous:</b> |
| 45 | <a class="sectref" rel="prev" href="module-uu.html">12.16 uu </A> |
| 46 | <b class="navlabel">Up:</b> |
| 47 | <a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A> |
| 48 | <b class="navlabel">Next:</b> |
| 49 | <a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A> |
| 50 | </div> |
| 51 | <hr /></div> |
| 52 | </DIV> |
| 53 | <!--End of Navigation Panel--> |
| 54 | |
| 55 | <H1><A NAME="SECTION00141700000000000000000"> |
| 56 | 12.17 <tt class="module">xdrlib</tt> -- |
| 57 | Encode and decode XDR data</A> |
| 58 | </H1> |
| 59 | |
| 60 | <P> |
| 61 | <A NAME="module-xdrlib"></A> |
| 62 | |
| 63 | <P> |
| 64 | <a id='l2h-4164' xml:id='l2h-4164'></a> |
| 65 | |
| 66 | <P> |
| 67 | The <tt class="module">xdrlib</tt> module supports the External Data Representation |
| 68 | Standard as described in <a class="rfc" id='rfcref-91292' xml:id='rfcref-91292' |
| 69 | href="http://www.faqs.org/rfcs/rfc1014.html">RFC 1014</a>, written by Sun Microsystems, |
| 70 | Inc. June 1987. It supports most of the data types described in the |
| 71 | RFC. |
| 72 | |
| 73 | <P> |
| 74 | The <tt class="module">xdrlib</tt> module defines two classes, one for packing |
| 75 | variables into XDR representation, and another for unpacking from XDR |
| 76 | representation. There are also two exception classes. |
| 77 | |
| 78 | <P> |
| 79 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> |
| 80 | <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-4162' xml:id='l2h-4162' class="class">Packer</tt></b>(</nobr></td> |
| 81 | <td><var></var>)</td></tr></table></dt> |
| 82 | <dd> |
| 83 | <tt class="class">Packer</tt> is the class for packing data into XDR representation. |
| 84 | The <tt class="class">Packer</tt> class is instantiated with no arguments. |
| 85 | </dl> |
| 86 | |
| 87 | <P> |
| 88 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> |
| 89 | <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-4163' xml:id='l2h-4163' class="class">Unpacker</tt></b>(</nobr></td> |
| 90 | <td><var>data</var>)</td></tr></table></dt> |
| 91 | <dd> |
| 92 | <code>Unpacker</code> is the complementary class which unpacks XDR data |
| 93 | values from a string buffer. The input buffer is given as |
| 94 | <var>data</var>. |
| 95 | </dl> |
| 96 | |
| 97 | <P> |
| 98 | <div class="seealso"> |
| 99 | <p class="heading">See Also:</p> |
| 100 | |
| 101 | <dl compact="compact" class="seerfc"> |
| 102 | <dt><a href="http://www.faqs.org/rfcs/rfc1014.html" |
| 103 | title="XDR: External Data Representation Standard" |
| 104 | >RFC 1014, <em>XDR: External Data Representation Standard</em></a> |
| 105 | <dd>This RFC |
| 106 | defined the encoding of data which was XDR at the time |
| 107 | this module was originally written. It has |
| 108 | apparently been obsoleted by <a class="rfc" id='rfcref-91288' xml:id='rfcref-91288' |
| 109 | href="http://www.faqs.org/rfcs/rfc1832.html">RFC 1832</a>. |
| 110 | </dl> |
| 111 | |
| 112 | <P> |
| 113 | <dl compact="compact" class="seerfc"> |
| 114 | <dt><a href="http://www.faqs.org/rfcs/rfc1832.html" |
| 115 | title="XDR: External Data Representation Standard" |
| 116 | >RFC 1832, <em>XDR: External Data Representation Standard</em></a> |
| 117 | <dd>Newer RFC |
| 118 | that provides a revised definition of XDR. |
| 119 | </dl> |
| 120 | </div> |
| 121 | |
| 122 | <P> |
| 123 | |
| 124 | <p><br /></p><hr class='online-navigation' /> |
| 125 | <div class='online-navigation'> |
| 126 | <!--Table of Child-Links--> |
| 127 | <A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a> |
| 128 | |
| 129 | <UL CLASS="ChildLinks"> |
| 130 | <LI><A href="xdr-packer-objects.html">12.17.1 Packer Objects</a> |
| 131 | <LI><A href="xdr-unpacker-objects.html">12.17.2 Unpacker Objects</a> |
| 132 | <LI><A href="xdr-exceptions.html">12.17.3 Exceptions</a> |
| 133 | </ul> |
| 134 | <!--End of Table of Child-Links--> |
| 135 | </div> |
| 136 | |
| 137 | <DIV CLASS="navigation"> |
| 138 | <div class='online-navigation'> |
| 139 | <p></p><hr /> |
| 140 | <table align="center" width="100%" cellpadding="0" cellspacing="2"> |
| 141 | <tr> |
| 142 | <td class='online-navigation'><a rel="prev" title="12.16 uu " |
| 143 | href="module-uu.html"><img src='../icons/previous.png' |
| 144 | border='0' height='32' alt='Previous Page' width='32' /></A></td> |
| 145 | <td class='online-navigation'><a rel="parent" title="12. Internet Data Handling" |
| 146 | href="netdata.html"><img src='../icons/up.png' |
| 147 | border='0' height='32' alt='Up One Level' width='32' /></A></td> |
| 148 | <td class='online-navigation'><a rel="next" title="12.17.1 Packer Objects" |
| 149 | href="xdr-packer-objects.html"><img src='../icons/next.png' |
| 150 | border='0' height='32' alt='Next Page' width='32' /></A></td> |
| 151 | <td align="center" width="100%">Python Library Reference</td> |
| 152 | <td class='online-navigation'><a rel="contents" title="Table of Contents" |
| 153 | href="contents.html"><img src='../icons/contents.png' |
| 154 | border='0' height='32' alt='Contents' width='32' /></A></td> |
| 155 | <td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png' |
| 156 | border='0' height='32' alt='Module Index' width='32' /></a></td> |
| 157 | <td class='online-navigation'><a rel="index" title="Index" |
| 158 | href="genindex.html"><img src='../icons/index.png' |
| 159 | border='0' height='32' alt='Index' width='32' /></A></td> |
| 160 | </tr></table> |
| 161 | <div class='online-navigation'> |
| 162 | <b class="navlabel">Previous:</b> |
| 163 | <a class="sectref" rel="prev" href="module-uu.html">12.16 uu </A> |
| 164 | <b class="navlabel">Up:</b> |
| 165 | <a class="sectref" rel="parent" href="netdata.html">12. Internet Data Handling</A> |
| 166 | <b class="navlabel">Next:</b> |
| 167 | <a class="sectref" rel="next" href="xdr-packer-objects.html">12.17.1 Packer Objects</A> |
| 168 | </div> |
| 169 | </div> |
| 170 | <hr /> |
| 171 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> |
| 172 | </DIV> |
| 173 | <!--End of Navigation Panel--> |
| 174 | <ADDRESS> |
| 175 | See <i><a href="about.html">About this document...</a></i> for information on suggesting changes. |
| 176 | </ADDRESS> |
| 177 | </BODY> |
| 178 | </HTML> |