gnutls_x509_crq_get_extension_data man page

gnutls_x509_crq_get_extension_data — API function


#include <gnutls/x509.h>

int gnutls_x509_crq_get_extension_data(gnutls_x509_crq_t crq, unsigned indx, void * data, size_t * sizeof_data);


gnutls_x509_crq_t crq
should contain a gnutls_x509_crq_t type
unsigned indx
Specifies which extension number to get. 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 oid


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

Use gnutls_x509_crq_get_extension_info() to extract the OID and critical flag. Use gnutls_x509_crq_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 in case of an error. If your have reached the last extension available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.



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