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<img alt="Erlang logo" src="../../../../doc/erlang-logo.png"><br><small><a href="users_guide.html">User's Guide</a><br><a href="index.html">Reference Manual</a><br><a href="release_notes.html">Release Notes</a><br><a href="../pdf/asn1-1.8.pdf">PDF</a><br><a href="../../../../doc/index.html">Top</a></small><p><strong>ASN.1</strong><br><strong>Reference Manual</strong><br><small>Version 1.8</small></p>
<br><a href="javascript:openAllFlips()">Expand All</a><br><a href="javascript:closeAllFlips()">Contract All</a><p><small><strong>Table of Contents</strong></small></p>
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<li id="no" title="asn1ct " expanded="false">asn1ct<ul>
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<li title="compile-1"><a href="asn1ct.html#compile-1">compile/1</a></li>
<li title="compile-2"><a href="asn1ct.html#compile-2">compile/2</a></li>
<li title="encode-3"><a href="asn1ct.html#encode-3">encode/3</a></li>
<li title="decode-3"><a href="asn1ct.html#decode-3">decode/3</a></li>
<li title="value-2"><a href="asn1ct.html#value-2">value/2</a></li>
<li title="test-1"><a href="asn1ct.html#test-1">test/1</a></li>
<li title="test-2"><a href="asn1ct.html#test-2">test/2</a></li>
<li title="test-3"><a href="asn1ct.html#test-3">test/3</a></li>
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<li title="decode-3"><a href="asn1rt.html#decode-3">decode/3</a></li>
<li title="encode-3"><a href="asn1rt.html#encode-3">encode/3</a></li>
<li title="info-1"><a href="asn1rt.html#info-1">info/1</a></li>
<li title="load_driver-0"><a href="asn1rt.html#load_driver-0">load_driver/0</a></li>
<li title="unload_driver-0"><a href="asn1rt.html#unload_driver-0">unload_driver/0</a></li>
<li title="utf8_binary_to_list-1"><a href="asn1rt.html#utf8_binary_to_list-1">utf8_binary_to_list/1</a></li>
<li title="utf8_list_to_binary-1"><a href="asn1rt.html#utf8_list_to_binary-1">utf8_list_to_binary/1</a></li>
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<!-- refpage --><center><h1>asn1rt</h1></center>
<h3>MODULE</h3>
<div class="REFBODY">asn1rt</div>
<h3>MODULE SUMMARY</h3>
<div class="REFBODY">ASN.1 runtime support functions</div>
<h3>DESCRIPTION</h3>
<div class="REFBODY"><p>
<p>This module is the interface module for the ASN.1 runtime support functions.
To encode and decode ASN.1 types in runtime the functions in this module
should be used.</p>
</p></div>
<h3>EXPORTS</h3>
<p><a name="decode-3"><span class="bold_code">decode(Module,Type,Bytes) -> {ok,Value}|{error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">Module = Type = atom()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Value = Reason = term()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Bytes = binary | [Int] when integer(Int), Int >= 0, Int =< 255 | binary</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p>Decodes <span class="code">Type</span> from <span class="code">Module</span> from the list of bytes or
binary <span class="code">Bytes</span>. If the module is compiled with <span class="code">ber_bin</span>
or <span class="code">per_bin</span> option <span class="code">Bytes</span> must be a binary.
Returns <span class="code">{ok,Value}</span> if successful.</p>
</p></div>
<p><a name="encode-3"><span class="bold_code">encode(Module,Type,Value)-> {ok,BinOrList} | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">Module = Type = atom()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Value = term()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">BinOrList = Bytes | binary()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Bytes = [Int|binary|Bytes] when integer(Int), Int >= 0, Int =< 255</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p>Encodes <span class="code">Value</span> of <span class="code">Type</span> defined in the ASN.1 module
<span class="code">Module</span>. Returns a possibly nested list of bytes and or binaries
if successful. If <span class="code">Module</span> was compiled with the options <span class="code">per_bin</span> and <span class="code">optimize</span> the result is a binary. To get as
fast execution as possible the
encode function only performs rudimentary tests that the input
<span class="code">Value</span>
is a correct instance of <span class="code">Type</span>. The length of strings is for example
not always checked. </p>
</p></div>
<p><a name="info-1"><span class="bold_code">info(Module) -> {ok,Info} | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">Module = atom()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Info = list()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p><span class="code">info/1</span> returns the version of the asn1 compiler that was
used to compile the module. It also returns the compiler options
that was used.</p>
</p></div>
<p><a name="load_driver-0"><span class="bold_code">load_driver() -> ok | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p>This function is obsolete and will be removed in R16A</p>
</p></div>
<p><a name="unload_driver-0"><span class="bold_code">unload_driver() -> ok | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p>This function is obsolete and will be removed in R16A</p>
</p></div>
<p><a name="utf8_binary_to_list-1"><span class="bold_code">utf8_binary_to_list(UTF8Binary) -> {ok,UnicodeList} | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">UTF8Binary = binary()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">UnicodeList = [integer()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p><span class="code">utf8_binary_to_list/1</span> Transforms a UTF8 encoded binary
to a list of integers, where each integer represents one
character as its unicode value. The function fails if the binary
is not a properly encoded UTF8 string.</p>
</p></div>
<p><a name="utf8_list_to_binary-1"><span class="bold_code">utf8_list_to_binary(UnicodeList) -> {ok,UTF8Binary} | {error,Reason}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">UnicodeList = [integer()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">UTF8Binary = binary()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Reason = term()</span><br>
</div>
</div>
<div class="REFBODY"><p>
<p><span class="code">utf8_list_to_binary/1</span> Transforms a list of integers,
where each integer represents one character as its unicode
value, to a UTF8 encoded binary.</p>
</p></div>
</div>
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