113d40330Schristos=pod 213d40330Schristos 313d40330Schristos=head1 NAME 413d40330Schristos 513d40330SchristosDH_new, DH_free - allocate and free DH objects 613d40330Schristos 713d40330Schristos=head1 SYNOPSIS 813d40330Schristos 913d40330Schristos #include <openssl/dh.h> 1013d40330Schristos 11*b0d17251SchristosThe following functions have been deprecated since OpenSSL 3.0, and can be 12*b0d17251Schristoshidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value, 13*b0d17251Schristossee L<openssl_user_macros(7)>: 14*b0d17251Schristos 1513d40330Schristos DH* DH_new(void); 1613d40330Schristos 1713d40330Schristos void DH_free(DH *dh); 1813d40330Schristos 1913d40330Schristos=head1 DESCRIPTION 2013d40330Schristos 2113d40330SchristosDH_new() allocates and initializes a B<DH> structure. 2213d40330Schristos 2313d40330SchristosDH_free() frees the B<DH> structure and its components. The values are 2413d40330Schristoserased before the memory is returned to the system. 2513d40330SchristosIf B<dh> is NULL nothing is done. 2613d40330Schristos 2713d40330Schristos=head1 RETURN VALUES 2813d40330Schristos 2913d40330SchristosIf the allocation fails, DH_new() returns B<NULL> and sets an error 3013d40330Schristoscode that can be obtained by L<ERR_get_error(3)>. Otherwise it returns 3113d40330Schristosa pointer to the newly allocated structure. 3213d40330Schristos 3313d40330SchristosDH_free() returns no value. 3413d40330Schristos 3513d40330Schristos=head1 SEE ALSO 3613d40330Schristos 3713d40330SchristosL<DH_new(3)>, L<ERR_get_error(3)>, 3813d40330SchristosL<DH_generate_parameters(3)>, 39*b0d17251SchristosL<DH_generate_key(3)>, 40*b0d17251SchristosL<EVP_PKEY-DH(7)> 41*b0d17251Schristos 42*b0d17251Schristos=head1 HISTORY 43*b0d17251Schristos 44*b0d17251SchristosAll of these functions were deprecated in OpenSSL 3.0. 45*b0d17251Schristos 46*b0d17251SchristosFor replacement see EVP_PKEY-DH(7). 4713d40330Schristos 4813d40330Schristos=head1 COPYRIGHT 4913d40330Schristos 50*b0d17251SchristosCopyright 2000-2022 The OpenSSL Project Authors. All Rights Reserved. 5113d40330Schristos 52*b0d17251SchristosLicensed under the Apache License 2.0 (the "License"). You may not use 5313d40330Schristosthis file except in compliance with the License. You can obtain a copy 5413d40330Schristosin the file LICENSE in the source distribution or at 5513d40330SchristosL<https://www.openssl.org/source/license.html>. 5613d40330Schristos 5713d40330Schristos=cut 58