=head1 NAME
- CMS_get0_type, CMS_set1_eContentType, CMS_get0_eContentType - get and set CMS content types
+ CMS_get0_type, CMS_set1_eContentType, CMS_get0_eContentType, CMS_get0_content - get and set CMS content types and content
=head1 SYNOPSIS
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);
+ ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms);
=head1 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 strutucture based on this value.
+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 B<CMS_PARTIAL>
-flag and B<before> the strutucre is finalised, otherwise the results are
+flag and B<before> the structure is finalised, otherwise the results are
undefined.
ASN1_OBJECT *CMS_get0_eContentType() returns a pointer to the embedded
content type.
+CMS_get0_content() returns a pointer to the B<ASN1_OCTET_STRING> pointer
+containing the embedded content.
+
=head1 NOTES
-As the B<0> implies CMS_get0_type() and CMS_get0_eContentType() return internal
-pointers which should B<not> be freed up. CMS_set1_eContentType() copies the
-supplied OID and it B<should> be freed up after use.
+As the B<0> implies CMS_get0_type(), CMS_get0_eContentType() and
+CMS_get0_content() return internal pointers which should B<not> be freed up.
+CMS_set1_eContentType() copies the supplied OID and it B<should> be freed up
+after use.
The B<ASN1_OBJECT> values returned can be converted to an integer B<NID> value
using OBJ_obj2nid(). For the currently supported content types the following
NID_pkcs7_encrypted
NID_pkcs7_enveloped
+The return value of CMS_get0_content() is a pointer to the B<ASN1_OCTET_STRING>
+content pointer. That means that for example:
+
+ ASN1_OCTET_STRING **pconf = CMS_get0_content(cms);
+
+B<*pconf> could be NULL if there is no embedded content. Applications can
+access, modify or create the embedded content in a B<CMS_ContentInfo> structure
+using this function. Applications usually will not need to modify the
+embedded content as it is normally set by higher level functions.
=head1 RETURN VALUES