D2I_X509_ATTRIBUTE(3)      Library Functions Manual      D2I_X509_ATTRIBUTE(3)

NAME
     d2i_X509_ATTRIBUTE, i2d_X509_ATTRIBUTE - decode and encode generic X.501
     Attribute

SYNOPSIS
     #include <openssl/x509.h>

     X509_ATTRIBUTE *
     d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **val_out,
         const unsigned char **der_in, long length);

     int
     i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *val_in, unsigned char **der_out);

DESCRIPTION
     d2i_X509_ATTRIBUTE() and i2d_X509_ATTRIBUTE() decode and encode a generic
     ASN.1 Attribute structure defined in X.501 section 8.2.  For details
     about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).

RETURN VALUES
     d2i_X509_ATTRIBUTE() returns an X509_ATTRIBUTE object or NULL if an error
     occurs.

     i2d_X509_ATTRIBUTE() returns the number of bytes successfully encoded or
     a negative value if an error occurs.

SEE ALSO
     ASN1_item_d2i(3), d2i_PKCS12(3), d2i_PKCS8_PRIV_KEY_INFO(3),
     d2i_X509_EXTENSION(3), d2i_X509_REQ(3), X509_ATTRIBUTE_new(3)

STANDARDS
     ITU-T Recommendation X.501, also known as ISO/IEC 9594-2: Information
     Technology  Open Systems Interconnection  The Directory: Models, section
     8.2: Overall structure

HISTORY
     d2i_X509_ATTRIBUTE() and i2d_X509_ATTRIBUTE() first appeared in SSLeay
     0.5.1 and have been available since OpenBSD 2.4.

Linux 6.8.7-arch1-1             March 27, 2018             Linux 6.8.7-arch1-1