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D2I_X509_EXTENSION(3) Library Functions Manual D2I_X509_EXTENSION(3)

d2i_X509_EXTENSION, i2d_X509_EXTENSION, d2i_X509_EXTENSIONS, i2d_X509_EXTENSIONSdecode and encode X.509 Extensions

#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);

() and () decode and encode an ASN.1 Extension structure defined in RFC 5280 section 4.1.

() and () decode and encode an ASN.1 Extensions structure defined in RFC 5280 section 4.1, which is a SEQUENCE OF Extension.

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.

ASN1_item_d2i(3), X509_EXTENSION_new(3), X509V3_get_d2i(3), X509v3_get_ext_by_NID(3)

RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile

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.

March 27, 2018 OpenBSD-6.7