NAME
d2i_CMS_ContentInfo,
i2d_CMS_ContentInfo,
d2i_CMS_bio, i2d_CMS_bio,
d2i_CMS_ReceiptRequest,
i2d_CMS_ReceiptRequest —
decode and encode Cryptographic Message
Syntax data
SYNOPSIS
#include
<openssl/cms.h>
CMS_ContentInfo *
d2i_CMS_ContentInfo(CMS_ContentInfo
**val_out, const unsigned char **der_in,
long length);
int
i2d_CMS_ContentInfo(CMS_ContentInfo
*val_in, unsigned char **out);
CMS_ContentInfo *
d2i_CMS_bio(BIO *in_bio,
CMS_ContentInfo **val_out);
int
i2d_CMS_bio(BIO *out_bio,
CMS_ContentInfo *val_in);
CMS_ReceiptRequest *
d2i_CMS_ReceiptRequest(CMS_ReceiptRequest
**val_out, const unsigned char **der_in,
long length);
int
i2d_CMS_ReceiptRequest(CMS_ReceiptRequest
*val_in, unsigned char **out);
DESCRIPTION
These functions decode and encode Cryptographic Message Syntax data structures. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).
d2i_CMS_ContentInfo()
and
i2d_CMS_ContentInfo()
decode and encode a CMS_ContentInfo structure defined
in RFC 5652 section 3.
d2i_CMS_bio()
and
i2d_CMS_bio()
are similar except that they decode or encode using a
BIO pointer.
d2i_CMS_ReceiptRequest()
and
i2d_CMS_ReceiptRequest()
decode and encode a CMS_ReceiptRequest structure
defined in RFC 2634 section 2.7.
RETURN VALUES
d2i_CMS_ContentInfo() and
d2i_CMS_bio() return a valid
CMS_ContentInfo structure or
NULL if an error occurs.
d2i_CMS_ReceiptRequest() returns a valid
CMS_ReceiptRequest structure or
NULL if an error occurs.
i2d_CMS_ContentInfo() and
i2d_CMS_ReceiptRequest() return the number of bytes
successfully encoded or a negative value if an error occurs.
i2d_CMS_bio() returns 1 for success or 0
if an error occurs.
For all functions, the error code can be obtained by ERR_get_error(3).
SEE ALSO
ASN1_item_d2i(3), CMS_ContentInfo_new(3), CMS_get0_type(3), CMS_ReceiptRequest_create0(3), i2d_CMS_bio_stream(3)
STANDARDS
RFC 5652: Cryptographic Message Syntax, section 3: General Syntax
RFC 2634: Enhanced Security Services for S/MIME, section 2.7: Receipt Request Syntax
HISTORY
These functions first appeared in OpenSSL 0.9.8h and have been available since OpenBSD 6.7.