Api function
#include <gnutls/x509-ext.h>
int gnutls_x509_key_purpose_get(gnutls_x509_key_purposes_t p, unsigned idx, gnutls_datum_t * oid);
The key purposes structure
The index of the key purpose to retrieve
Will hold the object identifier of the key purpose (to be treated as constant)
This function will retrieve the specified by the index key purpose in the purposes structure. The object identifier will be a null terminated string.
On success, GNUTLS_E_SUCCESS (0) is returned, GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if the index is out of bounds, otherwise a negative error value.
3.3.0
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