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gnutls_x509_crt_get_basic_constraints - API function
int gnutls_x509_crt_get_basic_constraints(gnutls_x509_crt_t cert,
unsigned int * critical, unsigned int * ca, int * pathlen);
should contain a gnutls_x509_crt_t type
unsigned int * critical
will be non-zero if the extension is marked as critical
unsigned int * ca
pointer to output integer indicating CA status, may be
NULL, value is 1 if the certificate CA flag is set, 0
int * pathlen
pointer to output integer indicating path length (may be
NULL), non-negative error codes indicate a present
pathLenConstraint field and the actual value, -1 indicate
that the field is absent.
This function will read the certificate's basic constraints, and return
the certificates CA status. It reads the basicConstraints X.509
If the certificate is a CA a positive value will be returned, or (0) if
the certificate does not have CA flag set. A negative error code may
be returned in case of errors. If the certificate does not contain the
basicConstraints extension GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will
Report bugs to <email@example.com>.
Home page: https://www.gnutls.org
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