gnutls_certificate_get_issuer(3) gnutls gnutls_certificate_get_issuer(3)

gnutls_certificate_get_issuer - API function

#include <gnutls/gnutls.h>

int gnutls_certificate_get_issuer(gnutls_certificate_credentials_t sc, gnutls_x509_crt_t cert, gnutls_x509_crt_t * issuer, unsigned int flags);

is a gnutls_certificate_credentials_t type.
is the certificate to find issuer for
Will hold the issuer if any. Should be treated as constant.

This function will return the issuer of a given certificate. If the flag GNUTLS_TL_GET_COPY is specified a copy of the issuer will be returned which must be freed using gnutls_x509_crt_deinit(). In that case the provided issuer must not be initialized.

As with gnutls_x509_trust_list_get_issuer() this function requires the GNUTLS_TL_GET_COPY flag in order to operate with PKCS11 trust lists in a thread-safe way.

On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.


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