#use wml::openssl-macros area=docs page=DH_new

<title>Documents, DH_new(3)</title>

<h1>DH_new(3)</h1>

#use wml::imp::generic

{:
## What's this? [[s|(<STRONG>[^<].+?)</A>(</STRONG><DD>)|$1$2|sg]]
[[s|<P>\s+<P>|<P>|sg]]
[[s|<P>\s+</|</|sg]]
[[s|<DD>\s*<DT>|<DD>&nbsp;<DT>|sg]]
[[s|<DD>\s*</DL>|<DD>&nbsp;</DL>|sg]]
[[s|\[|&#91;|sg]]
[[s|\]|&#93;|sg]]

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	<LI><A HREF="#NAME">NAME</A>
	<LI><A HREF="#SYNOPSIS">SYNOPSIS</A>
	<LI><A HREF="#DESCRIPTION">DESCRIPTION</A>
	<LI><A HREF="#RETURN_VALUES">RETURN VALUES</A>
	<LI><A HREF="#SEE_ALSO">SEE ALSO</A>
	<LI><A HREF="#HISTORY">HISTORY</A>
</UL>
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<HR>
<P>
<HR>
<H1><A NAME="NAME">NAME</A></H1>
<P>
DH_new, DH_free - allocate and free DH objects

</P>
<P>
<HR>
<H1><A NAME="SYNOPSIS">SYNOPSIS</A></H1>
<PRE> #include &lt;openssl/dh.h&gt;
</PRE>
<PRE> DH* DH_new(void);
</PRE>
<PRE> void DH_free(DH *dh);
</PRE>
<P>
<HR>
<H1><A NAME="DESCRIPTION">DESCRIPTION</A></H1>
<P>
<CODE>DH_new()</CODE> allocates and initializes a <STRONG>DH</STRONG> structure.

</P>
<P>
<CODE>DH_free()</CODE> frees the <STRONG>DH</STRONG> structure and its components. The values are erased before the memory is
returned to the system.

</P>
<P>
<HR>
<H1><A NAME="RETURN_VALUES">RETURN VALUES</A></H1>
<P>
If the allocation fails, <CODE>DH_new()</CODE> returns <STRONG>NULL</STRONG> and sets an error code that can be obtained by <A HREF="../crypto/ERR_get_error.html#">ERR_get_error(3)</A>. Otherwise it returns a pointer to the newly allocated structure.

</P>
<P>
<CODE>DH_free()</CODE> returns no value.

</P>
<P>
<HR>
<H1><A NAME="SEE_ALSO">SEE ALSO</A></H1>
<P>
<A HREF="../crypto/dh.html#">dh(3)</A>, <A HREF="../crypto/ERR_get_error.html#">ERR_get_error(3)</A>,
<A HREF="../crypto/DH_generate_parameters.html#">DH_generate_parameters(3)</A>,
<A HREF="../crypto/DH_generate_key.html#">DH_generate_key(3)</A>



</P>
<P>
<HR>
<H1><A NAME="HISTORY">HISTORY</A></H1>
<P>
<CODE>DH_new()</CODE> and <CODE>DH_free()</CODE> are available in all
versions of SSLeay and OpenSSL.

</P>
:}