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CMS_get0_type
Section: OpenSSL (3)
Updated: 2008-04-10
Index
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NAME
CMS_get0_type, CMS_set1_eContentType, CMS_get0_eContentType - get and set CMS content types
SYNOPSIS
#include <openssl/cms.h>
const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms);
int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid);
const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms);
DESCRIPTION
CMS_get0_type() returns the content type of a CMS_ContentInfo structure as
and ASN1_OBJECT pointer. An application can then decide how to process the
CMS_ContentInfo structure based on this value.
CMS_set1_eContentType() sets the embedded content type of a CMS_ContentInfo
structure. It should be called with CMS functions with the CMS_PARTIAL
flag and before the structure is finalised, otherwise the results are
undefined.
ASN1_OBJECT *CMS_get0_eContentType() returns a pointer to the embedded
content type.
NOTES
As the 0 implies CMS_get0_type() and CMS_get0_eContentType() return internal
pointers which should not be freed up. CMS_set1_eContentType() copies the
supplied OID and it should be freed up after use.
The ASN1_OBJECT values returned can be converted to an integer NID value
using OBJ_obj2nid(). For the currently supported content types the following
values are returned:
NID_pkcs7_data
NID_pkcs7_signed
NID_pkcs7_digest
NID_id_smime_ct_compressedData:
NID_pkcs7_encrypted
NID_pkcs7_enveloped
RETURN VALUES
CMS_get0_type() and CMS_get0_eContentType() return and ASN1_OBJECT structure.
CMS_set1_eContentType() returns 1 for success or 0 if an error occurred. The
error can be obtained from ERR_get_error(3).
SEE ALSO
ERR_get_error(3)
HISTORY
CMS_get0_type(), CMS_set1_eContentType() and CMS_get0_eContentType() were all
first added to OpenSSL 0.9.8
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- NOTES
-
- RETURN VALUES
-
- SEE ALSO
-
- HISTORY
-
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