<!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 v2.7.3: asn1write.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 v2.7.3
</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="#define-members">Macros</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">asn1write.h File Reference</div> </div>
</div><!--header-->
<div class="contents">
<p>ASN.1 buffer writing functionality.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "<a class="el" href="asn1_8h_source.html">asn1.h</a>"</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for asn1write.h:</div>
<div class="dyncontent">
<div class="center"><img src="asn1write_8h__incl.png" border="0" usemap="#asn1write_8h" alt=""/></div>
<map name="asn1write_8h" id="asn1write_8h">
</map>
</div>
</div>
<p><a href="asn1write_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="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:a4dab14bef6cf1fed0404be2d77a6ebb9"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a4dab14bef6cf1fed0404be2d77a6ebb9">MBEDTLS_ASN1_CHK_ADD</a>(g, f)</td></tr>
<tr class="separator:a4dab14bef6cf1fed0404be2d77a6ebb9"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a7fe6f4cdba05081bff484a7b286108df"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a7fe6f4cdba05081bff484a7b286108df">mbedtls_asn1_write_len</a> (unsigned char **p, unsigned char *start, size_t len)</td></tr>
<tr class="memdesc:a7fe6f4cdba05081bff484a7b286108df"><td class="mdescLeft"> </td><td class="mdescRight">Write a length field in ASN.1 format Note: function works backwards in data buffer. <a href="#a7fe6f4cdba05081bff484a7b286108df">More...</a><br /></td></tr>
<tr class="separator:a7fe6f4cdba05081bff484a7b286108df"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2247b80bd02e2981dc26ce62ffbb1859"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a2247b80bd02e2981dc26ce62ffbb1859">mbedtls_asn1_write_tag</a> (unsigned char **p, unsigned char *start, unsigned char tag)</td></tr>
<tr class="memdesc:a2247b80bd02e2981dc26ce62ffbb1859"><td class="mdescLeft"> </td><td class="mdescRight">Write a ASN.1 tag in ASN.1 format Note: function works backwards in data buffer. <a href="#a2247b80bd02e2981dc26ce62ffbb1859">More...</a><br /></td></tr>
<tr class="separator:a2247b80bd02e2981dc26ce62ffbb1859"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1ecd132a57faf95c61423dc9cdc30143"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a1ecd132a57faf95c61423dc9cdc30143">mbedtls_asn1_write_raw_buffer</a> (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t size)</td></tr>
<tr class="memdesc:a1ecd132a57faf95c61423dc9cdc30143"><td class="mdescLeft"> </td><td class="mdescRight">Write raw buffer data Note: function works backwards in data buffer. <a href="#a1ecd132a57faf95c61423dc9cdc30143">More...</a><br /></td></tr>
<tr class="separator:a1ecd132a57faf95c61423dc9cdc30143"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac2639a2da5918931152dd1ee1a93e7c9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#ac2639a2da5918931152dd1ee1a93e7c9">mbedtls_asn1_write_mpi</a> (unsigned char **p, unsigned char *start, const <a class="el" href="structmbedtls__mpi.html">mbedtls_mpi</a> *X)</td></tr>
<tr class="memdesc:ac2639a2da5918931152dd1ee1a93e7c9"><td class="mdescLeft"> </td><td class="mdescRight">Write a big number (MBEDTLS_ASN1_INTEGER) in ASN.1 format Note: function works backwards in data buffer. <a href="#ac2639a2da5918931152dd1ee1a93e7c9">More...</a><br /></td></tr>
<tr class="separator:ac2639a2da5918931152dd1ee1a93e7c9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adc9614b64c7bb92e1d159898b23acd90"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#adc9614b64c7bb92e1d159898b23acd90">mbedtls_asn1_write_null</a> (unsigned char **p, unsigned char *start)</td></tr>
<tr class="memdesc:adc9614b64c7bb92e1d159898b23acd90"><td class="mdescLeft"> </td><td class="mdescRight">Write a NULL tag (MBEDTLS_ASN1_NULL) with zero data in ASN.1 format Note: function works backwards in data buffer. <a href="#adc9614b64c7bb92e1d159898b23acd90">More...</a><br /></td></tr>
<tr class="separator:adc9614b64c7bb92e1d159898b23acd90"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab437fb4183494e4c9cf4b6e15ca236d6"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#ab437fb4183494e4c9cf4b6e15ca236d6">mbedtls_asn1_write_oid</a> (unsigned char **p, unsigned char *start, const char *oid, size_t oid_len)</td></tr>
<tr class="memdesc:ab437fb4183494e4c9cf4b6e15ca236d6"><td class="mdescLeft"> </td><td class="mdescRight">Write an OID tag (MBEDTLS_ASN1_OID) and data in ASN.1 format Note: function works backwards in data buffer. <a href="#ab437fb4183494e4c9cf4b6e15ca236d6">More...</a><br /></td></tr>
<tr class="separator:ab437fb4183494e4c9cf4b6e15ca236d6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a87b24d328654c5e8d17ffe3b0192ecb8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a87b24d328654c5e8d17ffe3b0192ecb8">mbedtls_asn1_write_algorithm_identifier</a> (unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, size_t par_len)</td></tr>
<tr class="memdesc:a87b24d328654c5e8d17ffe3b0192ecb8"><td class="mdescLeft"> </td><td class="mdescRight">Write an AlgorithmIdentifier sequence in ASN.1 format Note: function works backwards in data buffer. <a href="#a87b24d328654c5e8d17ffe3b0192ecb8">More...</a><br /></td></tr>
<tr class="separator:a87b24d328654c5e8d17ffe3b0192ecb8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adfc6b0a6111a9fe9b586c2a931e3e205"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#adfc6b0a6111a9fe9b586c2a931e3e205">mbedtls_asn1_write_bool</a> (unsigned char **p, unsigned char *start, int boolean)</td></tr>
<tr class="memdesc:adfc6b0a6111a9fe9b586c2a931e3e205"><td class="mdescLeft"> </td><td class="mdescRight">Write a boolean tag (MBEDTLS_ASN1_BOOLEAN) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#adfc6b0a6111a9fe9b586c2a931e3e205">More...</a><br /></td></tr>
<tr class="separator:adfc6b0a6111a9fe9b586c2a931e3e205"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c5e6e927a74d85aea15866fb50e63c8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a6c5e6e927a74d85aea15866fb50e63c8">mbedtls_asn1_write_int</a> (unsigned char **p, unsigned char *start, int val)</td></tr>
<tr class="memdesc:a6c5e6e927a74d85aea15866fb50e63c8"><td class="mdescLeft"> </td><td class="mdescRight">Write an int tag (MBEDTLS_ASN1_INTEGER) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#a6c5e6e927a74d85aea15866fb50e63c8">More...</a><br /></td></tr>
<tr class="separator:a6c5e6e927a74d85aea15866fb50e63c8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a400af5e542195c14533baf2f377d31d1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a400af5e542195c14533baf2f377d31d1">mbedtls_asn1_write_printable_string</a> (unsigned char **p, unsigned char *start, const char *text, size_t text_len)</td></tr>
<tr class="memdesc:a400af5e542195c14533baf2f377d31d1"><td class="mdescLeft"> </td><td class="mdescRight">Write a printable string tag (MBEDTLS_ASN1_PRINTABLE_STRING) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#a400af5e542195c14533baf2f377d31d1">More...</a><br /></td></tr>
<tr class="separator:a400af5e542195c14533baf2f377d31d1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af3bfd68158c26618239a733986b11528"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#af3bfd68158c26618239a733986b11528">mbedtls_asn1_write_ia5_string</a> (unsigned char **p, unsigned char *start, const char *text, size_t text_len)</td></tr>
<tr class="memdesc:af3bfd68158c26618239a733986b11528"><td class="mdescLeft"> </td><td class="mdescRight">Write an IA5 string tag (MBEDTLS_ASN1_IA5_STRING) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#af3bfd68158c26618239a733986b11528">More...</a><br /></td></tr>
<tr class="separator:af3bfd68158c26618239a733986b11528"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3198221d6169d22d72e6a166043f40c5"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a3198221d6169d22d72e6a166043f40c5">mbedtls_asn1_write_bitstring</a> (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t bits)</td></tr>
<tr class="memdesc:a3198221d6169d22d72e6a166043f40c5"><td class="mdescLeft"> </td><td class="mdescRight">Write a bitstring tag (MBEDTLS_ASN1_BIT_STRING) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#a3198221d6169d22d72e6a166043f40c5">More...</a><br /></td></tr>
<tr class="separator:a3198221d6169d22d72e6a166043f40c5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56e71582d7ccef976c09c49f9370e81b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a56e71582d7ccef976c09c49f9370e81b">mbedtls_asn1_write_octet_string</a> (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t size)</td></tr>
<tr class="memdesc:a56e71582d7ccef976c09c49f9370e81b"><td class="mdescLeft"> </td><td class="mdescRight">Write an octet string tag (MBEDTLS_ASN1_OCTET_STRING) and value in ASN.1 format Note: function works backwards in data buffer. <a href="#a56e71582d7ccef976c09c49f9370e81b">More...</a><br /></td></tr>
<tr class="separator:a56e71582d7ccef976c09c49f9370e81b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0ad16ddefc9aa0948e84dcdd1e29ebf6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structmbedtls__asn1__named__data.html">mbedtls_asn1_named_data</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="asn1write_8h.html#a0ad16ddefc9aa0948e84dcdd1e29ebf6">mbedtls_asn1_store_named_data</a> (<a class="el" href="structmbedtls__asn1__named__data.html">mbedtls_asn1_named_data</a> **list, const char *oid, size_t oid_len, const unsigned char *val, size_t val_len)</td></tr>
<tr class="memdesc:a0ad16ddefc9aa0948e84dcdd1e29ebf6"><td class="mdescLeft"> </td><td class="mdescRight">Create or find a specific named_data entry for writing in a sequence or list based on the OID. If not already in there, a new entry is added to the head of the list. Warning: Destructive behaviour for the val data! <a href="#a0ad16ddefc9aa0948e84dcdd1e29ebf6">More...</a><br /></td></tr>
<tr class="separator:a0ad16ddefc9aa0948e84dcdd1e29ebf6"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>ASN.1 buffer writing functionality. </p>
<p class="definition">Definition in file <a class="el" href="asn1write_8h_source.html">asn1write.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a4dab14bef6cf1fed0404be2d77a6ebb9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4dab14bef6cf1fed0404be2d77a6ebb9">◆ </a></span>MBEDTLS_ASN1_CHK_ADD</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define MBEDTLS_ASN1_CHK_ADD</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">g, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">f </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { <span class="keywordflow">if</span>( ( ret = f ) < 0 ) <span class="keywordflow">return</span>( ret ); else \</div><div class="line"> g += ret; } <span class="keywordflow">while</span>( 0 )</div></div><!-- fragment -->
<p class="definition">Definition at line <a class="el" href="asn1write_8h_source.html#l00029">29</a> of file <a class="el" href="asn1write_8h_source.html">asn1write.h</a>.</p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a0ad16ddefc9aa0948e84dcdd1e29ebf6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0ad16ddefc9aa0948e84dcdd1e29ebf6">◆ </a></span>mbedtls_asn1_store_named_data()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structmbedtls__asn1__named__data.html">mbedtls_asn1_named_data</a>* mbedtls_asn1_store_named_data </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmbedtls__asn1__named__data.html">mbedtls_asn1_named_data</a> ** </td>
<td class="paramname"><em>list</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>oid</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>oid_len</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>val</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>val_len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Create or find a specific named_data entry for writing in a sequence or list based on the OID. If not already in there, a new entry is added to the head of the list. Warning: Destructive behaviour for the val data! </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">list</td><td>Pointer to the location of the head of the list to seek through (will be updated in case of a new entry) </td></tr>
<tr><td class="paramname">oid</td><td>The OID to look for </td></tr>
<tr><td class="paramname">oid_len</td><td>Size of the OID </td></tr>
<tr><td class="paramname">val</td><td>Data to store (can be NULL if you want to fill it by hand) </td></tr>
<tr><td class="paramname">val_len</td><td>Minimum length of the data buffer needed</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>NULL if if there was a memory allocation error, or a pointer to the new / existing entry. </dd></dl>
</div>
</div>
<a id="a87b24d328654c5e8d17ffe3b0192ecb8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a87b24d328654c5e8d17ffe3b0192ecb8">◆ </a></span>mbedtls_asn1_write_algorithm_identifier()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_algorithm_identifier </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>oid</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>oid_len</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>par_len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write an AlgorithmIdentifier sequence in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">oid</td><td>the OID of the algorithm </td></tr>
<tr><td class="paramname">oid_len</td><td>length of the OID </td></tr>
<tr><td class="paramname">par_len</td><td>length of parameters, which must be already written. If 0, NULL parameters are added</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a3198221d6169d22d72e6a166043f40c5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3198221d6169d22d72e6a166043f40c5">◆ </a></span>mbedtls_asn1_write_bitstring()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_bitstring </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a bitstring tag (MBEDTLS_ASN1_BIT_STRING) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">buf</td><td>the bitstring </td></tr>
<tr><td class="paramname">bits</td><td>the total number of bits in the bitstring</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="adfc6b0a6111a9fe9b586c2a931e3e205"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adfc6b0a6111a9fe9b586c2a931e3e205">◆ </a></span>mbedtls_asn1_write_bool()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_bool </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>boolean</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a boolean tag (MBEDTLS_ASN1_BOOLEAN) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">boolean</td><td>0 or 1</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="af3bfd68158c26618239a733986b11528"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af3bfd68158c26618239a733986b11528">◆ </a></span>mbedtls_asn1_write_ia5_string()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_ia5_string </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>text_len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write an IA5 string tag (MBEDTLS_ASN1_IA5_STRING) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">text</td><td>the text to write </td></tr>
<tr><td class="paramname">text_len</td><td>length of the text</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a6c5e6e927a74d85aea15866fb50e63c8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6c5e6e927a74d85aea15866fb50e63c8">◆ </a></span>mbedtls_asn1_write_int()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_int </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>val</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write an int tag (MBEDTLS_ASN1_INTEGER) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">val</td><td>the integer value</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a7fe6f4cdba05081bff484a7b286108df"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7fe6f4cdba05081bff484a7b286108df">◆ </a></span>mbedtls_asn1_write_len()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_len </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a length field in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">len</td><td>the length to write</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="ac2639a2da5918931152dd1ee1a93e7c9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac2639a2da5918931152dd1ee1a93e7c9">◆ </a></span>mbedtls_asn1_write_mpi()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_mpi </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structmbedtls__mpi.html">mbedtls_mpi</a> * </td>
<td class="paramname"><em>X</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a big number (MBEDTLS_ASN1_INTEGER) in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">X</td><td>the MPI to write</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="adc9614b64c7bb92e1d159898b23acd90"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adc9614b64c7bb92e1d159898b23acd90">◆ </a></span>mbedtls_asn1_write_null()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_null </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a NULL tag (MBEDTLS_ASN1_NULL) with zero data in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking)</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a56e71582d7ccef976c09c49f9370e81b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a56e71582d7ccef976c09c49f9370e81b">◆ </a></span>mbedtls_asn1_write_octet_string()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_octet_string </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write an octet string tag (MBEDTLS_ASN1_OCTET_STRING) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">buf</td><td>data buffer to write </td></tr>
<tr><td class="paramname">size</td><td>length of the data buffer</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="ab437fb4183494e4c9cf4b6e15ca236d6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab437fb4183494e4c9cf4b6e15ca236d6">◆ </a></span>mbedtls_asn1_write_oid()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_oid </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>oid</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>oid_len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write an OID tag (MBEDTLS_ASN1_OID) and data in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">oid</td><td>the OID to write </td></tr>
<tr><td class="paramname">oid_len</td><td>length of the OID</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a400af5e542195c14533baf2f377d31d1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a400af5e542195c14533baf2f377d31d1">◆ </a></span>mbedtls_asn1_write_printable_string()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_printable_string </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>text_len</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a printable string tag (MBEDTLS_ASN1_PRINTABLE_STRING) and value in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">text</td><td>the text to write </td></tr>
<tr><td class="paramname">text_len</td><td>length of the text</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a1ecd132a57faf95c61423dc9cdc30143"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1ecd132a57faf95c61423dc9cdc30143">◆ </a></span>mbedtls_asn1_write_raw_buffer()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_raw_buffer </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write raw buffer data Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">buf</td><td>data buffer to write </td></tr>
<tr><td class="paramname">size</td><td>length of the data buffer</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
<a id="a2247b80bd02e2981dc26ce62ffbb1859"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2247b80bd02e2981dc26ce62ffbb1859">◆ </a></span>mbedtls_asn1_write_tag()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int mbedtls_asn1_write_tag </td>
<td>(</td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>tag</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Write a ASN.1 tag in ASN.1 format Note: function works backwards in data buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>reference to current position pointer </td></tr>
<tr><td class="paramname">start</td><td>start of the buffer (for bounds-checking) </td></tr>
<tr><td class="paramname">tag</td><td>the tag to write</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the length written or a negative error code </dd></dl>
</div>
</div>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Tue May 8 2018 21:08:41 for mbed TLS v2.7.3 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>
