2020-08-06 11:56:57 +08:00
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=pod
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=head1 NAME
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2020-09-24 17:42:23 +08:00
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CMS_data_create_ex, CMS_data_create
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2020-08-06 11:56:57 +08:00
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- Create CMS Data object
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=head1 SYNOPSIS
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#include <openssl/cms.h>
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2020-09-24 17:42:23 +08:00
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CMS_ContentInfo *CMS_data_create_ex(BIO *in, unsigned int flags,
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2020-10-15 17:55:50 +08:00
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OSSL_LIB_CTX *libctx, const char *propq);
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CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags);
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=head1 DESCRIPTION
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2020-09-24 17:42:23 +08:00
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CMS_data_create_ex() creates a B<CMS_ContentInfo> structure
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with a type B<NID_pkcs7_data>. The data is supplied via the I<in> BIO.
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The library context I<libctx> and the property query I<propq> are used when
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retrieving algorithms from providers. The I<flags> field supports the
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B<CMS_STREAM> flag. Internally CMS_final() is called unless B<CMS_STREAM> is
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specified.
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The B<CMS_ContentInfo> structure can be freed using L<CMS_ContentInfo_free(3)>.
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2020-09-24 17:42:23 +08:00
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CMS_data_create() is similar to CMS_data_create_ex()
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but uses default values of NULL for the library context I<libctx> and the
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property query I<propq>.
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=head1 RETURN VALUES
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2020-09-24 17:42:23 +08:00
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If the allocation fails, CMS_data_create_ex() and CMS_data_create()
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return NULL and set an error code that can be obtained by L<ERR_get_error(3)>.
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Otherwise they return a pointer to the newly allocated structure.
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=head1 SEE ALSO
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L<ERR_get_error(3)>, L<CMS_final(3)>
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2021-03-09 21:59:20 +08:00
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=head1 HISTORY
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2020-08-06 11:56:57 +08:00
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2020-09-24 17:42:23 +08:00
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The CMS_data_create_ex() method was added in OpenSSL 3.0.
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2020-08-06 11:56:57 +08:00
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=head1 COPYRIGHT
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2021-03-11 21:27:36 +08:00
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Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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2020-08-06 11:56:57 +08:00
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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