gnutls_x509_crq_get_attribute_info man page

gnutls_x509_crq_get_attribute_info — API function


#include <gnutls/x509.h>

int gnutls_x509_crq_get_attribute_info(gnutls_x509_crq_t crq, unsigned indx, void * oid, size_t * sizeof_oid);


gnutls_x509_crq_t crq
should contain a gnutls_x509_crq_t type
unsigned indx
Specifies which attribute number to get. Use (0) to get the first one.
void * oid
a pointer to a structure to hold the OID
size_t * sizeof_oid
initially holds the maximum size of oid , on return holds actual size of oid .


This function will return the requested attribute OID in the certificate, and the critical flag for it. The attribute OID will be stored as a string in the provided buffer. Use gnutls_x509_crq_get_attribute_data() to extract the data.

If the buffer provided is not long enough to hold the output, then * sizeof_oid is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.


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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