1e1051a39Sopenharmony_ci=pod 2e1051a39Sopenharmony_ci 3e1051a39Sopenharmony_ci=head1 NAME 4e1051a39Sopenharmony_ci 5e1051a39Sopenharmony_ciossl_DER_w_precompiled 6e1051a39Sopenharmony_ci- internal DER writers for precompiled DER blobs 7e1051a39Sopenharmony_ci 8e1051a39Sopenharmony_ci=head1 SYNOPSIS 9e1051a39Sopenharmony_ci 10e1051a39Sopenharmony_ci #include "internal/der.h" 11e1051a39Sopenharmony_ci 12e1051a39Sopenharmony_ci int ossl_DER_w_precompiled(WPACKET *pkt, int tag, 13e1051a39Sopenharmony_ci const unsigned char *precompiled, 14e1051a39Sopenharmony_ci size_t precompiled_n); 15e1051a39Sopenharmony_ci 16e1051a39Sopenharmony_ci=head1 DESCRIPTION 17e1051a39Sopenharmony_ci 18e1051a39Sopenharmony_ciThere may be already existing DER blobs that can simply be copied to 19e1051a39Sopenharmony_cithe buffer held by I<pkt>. For example, precompiled values, such as 20e1051a39Sopenharmony_ciOIDs (for example, C<id-sha256>) or complete AlgorithmIdentifiers 21e1051a39Sopenharmony_ci(for example, C<sha256Identifier>). To add those as an element in a 22e1051a39Sopenharmony_cistructure being DER encoded, use ossl_DER_w_precompiled(). 23e1051a39Sopenharmony_ci 24e1051a39Sopenharmony_ciossl_DER_w_precompiled() will simply take the DER encoded blob given as 25e1051a39Sopenharmony_ciI<precompiled> with length I<precompiled_n> and add it to the buffer 26e1051a39Sopenharmony_ciheld by I<pkt>. 27e1051a39Sopenharmony_ci 28e1051a39Sopenharmony_ci=head1 RETURN VALUES 29e1051a39Sopenharmony_ci 30e1051a39Sopenharmony_ciossl_DER_w_precompiled() returns 1 on success and 0 on failure. Failure 31e1051a39Sopenharmony_cimay mean that the buffer held by the I<pkt> is too small, but may also 32e1051a39Sopenharmony_cimean that the values given to the functions are invalid, such as the provided 33e1051a39Sopenharmony_ciI<tag> value being too large for the implementation. 34e1051a39Sopenharmony_ci 35e1051a39Sopenharmony_ci=head1 SEE ALSO 36e1051a39Sopenharmony_ci 37e1051a39Sopenharmony_ciL<DERlib(7)> 38e1051a39Sopenharmony_ci 39e1051a39Sopenharmony_ci=head1 COPYRIGHT 40e1051a39Sopenharmony_ci 41e1051a39Sopenharmony_ciCopyright 2020 The OpenSSL Project Authors. All Rights Reserved. 42e1051a39Sopenharmony_ci 43e1051a39Sopenharmony_ciLicensed under the Apache License 2.0 (the "License"). You may not use 44e1051a39Sopenharmony_cithis file except in compliance with the License. You can obtain a copy 45e1051a39Sopenharmony_ciin the file LICENSE in the source distribution or at 46e1051a39Sopenharmony_ciL<https://www.openssl.org/source/license.html>. 47e1051a39Sopenharmony_ci 48e1051a39Sopenharmony_ci=cut 49