CMS_data_create_ex, CMS_data_create - Create CMS Data object

#include <openssl/cms.h>
CMS_ContentInfo *CMS_data_create_ex(BIO *in, unsigned int flags,
                                    OSSL_LIB_CTX *libctx, const char *propq);
CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags);

CMS_data_create_ex() creates a CMS_ContentInfo structure with a type NID_pkcs7_data. The data is supplied via the in BIO. The library context libctx and the property query propq are used when retrieving algorithms from providers. The flags field supports the CMS_STREAM flag. Internally CMS_final() is called unless CMS_STREAM is specified.

The CMS_ContentInfo structure can be freed using CMS_ContentInfo_free(3).

CMS_data_create() is similar to CMS_data_create_ex() but uses default values of NULL for the library context libctx and the property query propq.

If the allocation fails, CMS_data_create_ex() and CMS_data_create() return NULL and set an error code that can be obtained by ERR_get_error(3). Otherwise they return a pointer to the newly allocated structure.

ERR_get_error(3), CMS_final(3)

The CMS_data_create_ex() method was added in OpenSSL 3.0.

Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at

2024-06-04 3.3.1