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.\" ========================================================================
.\"
.IX Title "DH_new 3"
.TH DH_new 3 "2019-12-20" "1.0.2u" "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"
\&\fBDH_new()\fR allocates and initializes a \fB\s-1DH\s0\fR structure.
.PP
\&\fBDH_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.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
If the allocation fails, \fBDH_new()\fR returns \fB\s-1NULL\s0\fR and sets an error
code that can be obtained by \fBERR_get_error\fR\|(3). Otherwise it returns
a pointer to the newly allocated structure.
.PP
\&\fBDH_free()\fR returns no value.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBdh\fR\|(3), \fBERR_get_error\fR\|(3),
\&\fBDH_generate_parameters\fR\|(3),
\&\fBDH_generate_key\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBDH_new()\fR and \fBDH_free()\fR are available in all versions of SSLeay and OpenSSL.

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