man DH_new () - allocate and free DH objects
NAME
DH_new, DH_free - allocate and free DH objects
SYNOPSIS
#include <openssl/dh.h>
DH* DH_new(void);
void DH_free(DH *dh);
DESCRIPTION
DH_new() allocates and initializes a DH structure.
DH_free() frees the DH structure and its components. The values are erased before the memory is returned to the system.
RETURN VALUES
If the allocation fails, DH_new() returns NULL and sets an error code that can be obtained by ERR_get_error(3). Otherwise it returns a pointer to the newly allocated structure.
DH_free() returns no value.
SEE ALSO
dh(3), ERR_get_error(3), DH_generate_parameters(3), DH_generate_key(3)
HISTORY
DH_new() and DH_free() are available in all versions of SSLeay and OpenSSL.