<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>mbed TLS v2.7.6: error.h File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">mbed TLS v2.7.6 </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',false,false,'search.php','Search'); }); </script> <div id="main-nav"></div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_b4d146e9a6d8dd56ed4afb2480a97fd3.html">mbedtls</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">error.h File Reference</div> </div> </div><!--header--> <div class="contents"> <p>Error to string translation. <a href="#details">More...</a></p> <div class="textblock"><code>#include <stddef.h></code><br /> </div><div class="textblock"><div class="dynheader"> Include dependency graph for error.h:</div> <div class="dyncontent"> <div class="center"><img src="error_8h__incl.png" border="0" usemap="#error_8h" alt=""/></div> <map name="error_8h" id="error_8h"> </map> </div> </div> <p><a href="error_8h_source.html">Go to the source code of this file.</a></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:a8c41c149b77a4807115b19c2af858558"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="error_8h.html#a8c41c149b77a4807115b19c2af858558">mbedtls_strerror</a> (int errnum, char *buffer, size_t buflen)</td></tr> <tr class="memdesc:a8c41c149b77a4807115b19c2af858558"><td class="mdescLeft"> </td><td class="mdescRight">Translate a mbed TLS error code into a string representation, Result is truncated if necessary and always includes a terminating null byte. <a href="#a8c41c149b77a4807115b19c2af858558">More...</a><br /></td></tr> <tr class="separator:a8c41c149b77a4807115b19c2af858558"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Error to string translation. </p> <p class="definition">Definition in file <a class="el" href="error_8h_source.html">error.h</a>.</p> </div><h2 class="groupheader">Function Documentation</h2> <a id="a8c41c149b77a4807115b19c2af858558"></a> <h2 class="memtitle"><span class="permalink"><a href="#a8c41c149b77a4807115b19c2af858558">◆ </a></span>mbedtls_strerror()</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void mbedtls_strerror </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"><em>errnum</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>buffer</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">size_t </td> <td class="paramname"><em>buflen</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Translate a mbed TLS error code into a string representation, Result is truncated if necessary and always includes a terminating null byte. </p> <p>Error code layout.</p> <p>Currently we try to keep all error codes within the negative space of 16 bits signed integers to support all platforms (-0x0001 - -0x7FFF). In addition we'd like to give two layers of information on the error if possible.</p> <p>For that purpose the error codes are segmented in the following manner:</p> <p>16 bit error code bit-segmentation</p> <p>1 bit - Unused (sign bit) 3 bits - High level module ID 5 bits - Module-dependent error code 7 bits - Low level module errors</p> <p>For historical reasons, low-level error codes are divided in even and odd, even codes were assigned first, and -1 is reserved for other errors.</p> <p>Low-level module errors (0x0002-0x007E, 0x0003-0x007F)</p> <p>Module Nr Codes assigned MPI 7 0x0002-0x0010 GCM 3 0x0012-0x0014 0x0013-0x0013 BLOWFISH 3 0x0016-0x0018 0x0017-0x0017 THREADING 3 0x001A-0x001E AES 4 0x0020-0x0022 0x0023-0x0025 CAMELLIA 3 0x0024-0x0026 0x0027-0x0027 XTEA 2 0x0028-0x0028 0x0029-0x0029 BASE64 2 0x002A-0x002C OID 1 0x002E-0x002E 0x000B-0x000B PADLOCK 1 0x0030-0x0030 DES 2 0x0032-0x0032 0x0033-0x0033 CTR_DBRG 4 0x0034-0x003A ENTROPY 3 0x003C-0x0040 0x003D-0x003F NET 11 0x0042-0x0052 0x0043-0x0045 ASN1 7 0x0060-0x006C CMAC 1 0x007A-0x007A PBKDF2 1 0x007C-0x007C HMAC_DRBG 4 0x0003-0x0009 CCM 3 0x000D-0x0011 ARC4 1 0x0019-0x0019 MD2 1 0x002B-0x002B MD4 1 0x002D-0x002D MD5 1 0x002F-0x002F RIPEMD160 1 0x0031-0x0031 SHA1 1 0x0035-0x0035 SHA256 1 0x0037-0x0037 SHA512 1 0x0039-0x0039</p> <p>High-level module nr (3 bits - 0x0...-0x7...) Name ID Nr of Errors PEM 1 9 PKCS#12 1 4 (Started from top) X509 2 20 PKCS5 2 4 (Started from top) DHM 3 11 PK 3 15 (Started from top) RSA 4 11 ECP 4 9 (Started from top) MD 5 5 CIPHER 6 8 SSL 6 17 (Started from top) SSL 7 31</p> <p>Module dependent error code (5 bits 0x.00.-0x.F8.) </p><dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">errnum</td><td>error code </td></tr> <tr><td class="paramname">buffer</td><td>buffer to place representation in </td></tr> <tr><td class="paramname">buflen</td><td>length of the buffer </td></tr> </table> </dd> </dl> </div> </div> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Fri Oct 12 2018 20:26:59 for mbed TLS v2.7.6 by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.13 </small></address> </body> </html>