=pod
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=head1 NAME
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DH_new, DH_free - allocate and free DH objects
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=head1 SYNOPSIS
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#include <openssl/dh.h>
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DH* DH_new(void);
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void DH_free(DH *dh);
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=head1 DESCRIPTION
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DH_new() allocates and initializes a B<DH> structure.
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DH_free() frees the B<DH> structure and its components. The values are
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erased before the memory is returned to the system.
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=head1 RETURN VALUES
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If the allocation fails, DH_new() returns B<NULL> and sets an error
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code that can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>. Otherwise it returns
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a pointer to the newly allocated structure.
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DH_free() returns no value.
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=head1 SEE ALSO
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L<dh(3)|dh(3)>, L<ERR_get_error(3)|ERR_get_error(3)>,
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L<DH_generate_parameters(3)|DH_generate_parameters(3)>,
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L<DH_generate_key(3)|DH_generate_key(3)>
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=head1 HISTORY
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DH_new() and DH_free() are available in all versions of SSLeay and OpenSSL.
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=cut
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