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.\" ========================================================================
.\"
.IX Title "DH_NEW 3"
.TH DH_NEW 3 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
DH_new, DH_free \- allocate and free DH objects
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/dh.h>
\&
\& DH* DH_new(void);
\&
\& void DH_free(DH *dh);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fIDH_new()\fR allocates and initializes a \fB\s-1DH\s0\fR structure.
.PP
\&\fIDH_free()\fR frees the \fB\s-1DH\s0\fR structure and its components. The values are
erased before the memory is returned to the system.
If \fBdh\fR is \s-1NULL\s0 nothing is done.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
If the allocation fails, \fIDH_new()\fR returns \fB\s-1NULL\s0\fR and sets an error
code that can be obtained by \fIERR_get_error\fR\|(3). Otherwise it returns
a pointer to the newly allocated structure.
.PP
\&\fIDH_free()\fR returns no value.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIDH_new\fR\|(3), \fIERR_get_error\fR\|(3),
\&\fIDH_generate_parameters\fR\|(3),
\&\fIDH_generate_key\fR\|(3)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2000\-2016 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.

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