NAME
d2i_X509_EXTENSION,
i2d_X509_EXTENSION,
d2i_X509_EXTENSIONS,
i2d_X509_EXTENSIONS —
decode and encode X.509
Extensions
SYNOPSIS
#include
<openssl/x509.h>
X509_EXTENSION *
d2i_X509_EXTENSION(X509_EXTENSION
**val_out, const unsigned char **der_in,
long length);
int
i2d_X509_EXTENSION(X509_EXTENSION
*val_in, unsigned char **der_out);
X509_EXTENSIONS *
d2i_X509_EXTENSIONS(X509_EXTENSIONS
**val_out, const unsigned char **der_in,
long length);
int
i2d_X509_EXTENSIONS(X509_EXTENSIONS
*val_in, unsigned char **der_out);
DESCRIPTION
d2i_X509_EXTENSION()
and
i2d_X509_EXTENSION()
decode and encode an ASN.1 Extension structure defined
in RFC 5280 section 4.1.
d2i_X509_EXTENSIONS()
and
i2d_X509_EXTENSIONS()
decode and encode an ASN.1 Extensions structure
defined in RFC 5280 section 4.1, which is a SEQUENCE OF
Extension.
RETURN VALUES
d2i_X509_EXTENSION() and
d2i_X509_EXTENSIONS() return an
X509_EXTENSION or
X509_EXTENSIONS object, respectively, or
NULL if an error occurs.
i2d_X509_EXTENSION() and
i2d_X509_EXTENSIONS() return the number of bytes
successfully encoded or a negative value if an error occurs.
SEE ALSO
ASN1_item_d2i(3), X509_EXTENSION_new(3), X509V3_get_d2i(3), X509v3_get_ext_by_NID(3)
STANDARDS
RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
HISTORY
d2i_X509_EXTENSION() and
i2d_X509_EXTENSION() first appeared in SSLeay 0.6.2
and have been available since OpenBSD 2.4.
d2i_X509_EXTENSIONS() and
i2d_X509_EXTENSIONS() first appeared in OpenSSL
0.9.8h and have been available since OpenBSD
4.5.