gnutls_x509_crt_get_extension_data - Man Page

#include <gnutls/x509.h>

int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t cert, unsigned indx, void * data, size_t * sizeof_data);

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 * data

a pointer to a structure to hold the data (may be null)

size_t * sizeof_data

initially holds the size of  data

This function will return the requested extension data in the certificate.  The extension data will be stored in the provided buffer.

Use gnutls_x509_crt_get_extension_info() to extract the OID and critical flag.  Use gnutls_x509_crt_get_extension_by_oid() instead, if you want to get data indexed by the extension OID rather than sequence.

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.

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

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