gnutls_x509_crt_get_extension_oid man page

gnutls_x509_crt_get_extension_oid — API function


#include <gnutls/x509.h>

int gnutls_x509_crt_get_extension_oid(gnutls_x509_crt_t cert, unsigned indx, void * oid, size_t * oid_size);


gnutls_x509_crt_t cert
should contain a gnutls_x509_crt_t type
unsigned indx
Specifies which extension OID to send. Use (0) to get the first one.
void * oid
a pointer to a structure to hold the OID (may be null)
size_t * oid_size
initially holds the size of oid


This function will return the requested extension OID in the certificate. The extension OID will be stored as a string in the provided buffer.

The oid returned will be null terminated, although oid_size will not account for the trailing null.


On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code is returned. If you have reached the last extension available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

Reporting Bugs

Report bugs to <bugs@gnutls.org>.
Home page: http://www.gnutls.org

See Also

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gnutls 3.5.4