1=pod 2 3=head1 NAME 4 5CMS_data_create_ex, CMS_data_create 6- Create CMS Data object 7 8=head1 SYNOPSIS 9 10 #include <openssl/cms.h> 11 12 CMS_ContentInfo *CMS_data_create_ex(BIO *in, unsigned int flags, 13 OSSL_LIB_CTX *libctx, const char *propq); 14 CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags); 15 16=head1 DESCRIPTION 17 18CMS_data_create_ex() creates a B<CMS_ContentInfo> structure 19with a type B<NID_pkcs7_data>. The data is supplied via the I<in> BIO. 20The library context I<libctx> and the property query I<propq> are used when 21retrieving algorithms from providers. The I<flags> field supports the 22B<CMS_STREAM> flag. Internally CMS_final() is called unless B<CMS_STREAM> is 23specified. 24 25The B<CMS_ContentInfo> structure can be freed using L<CMS_ContentInfo_free(3)>. 26 27CMS_data_create() is similar to CMS_data_create_ex() 28but uses default values of NULL for the library context I<libctx> and the 29property query I<propq>. 30 31=head1 RETURN VALUES 32 33If the allocation fails, CMS_data_create_ex() and CMS_data_create() 34return NULL and set an error code that can be obtained by L<ERR_get_error(3)>. 35Otherwise they return a pointer to the newly allocated structure. 36 37=head1 SEE ALSO 38 39L<ERR_get_error(3)>, L<CMS_final(3)> 40 41=head1 HISTORY 42 43The CMS_data_create_ex() method was added in OpenSSL 3.0. 44 45=head1 COPYRIGHT 46 47Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved. 48 49Licensed under the Apache License 2.0 (the "License"). You may not use 50this file except in compliance with the License. You can obtain a copy 51in the file LICENSE in the source distribution or at 52L<https://www.openssl.org/source/license.html>. 53 54=cut 55
