NAME

       gnutls_x509_crt_get_authority_key_gn_serial - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int  gnutls_x509_crt_get_authority_key_gn_serial(gnutls_x509_crt_t  cert,  unsigned  int seq, void * alt,
       size_t * alt_size, unsigned int *  alt_type,  void  *  serial,  size_t  *  serial_size,  unsigned  int  *
       critical);

ARGUMENTS

       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       unsigned int seq
                   specifies the sequence number of the alt name (0 for the first one, 1 for the second etc.)

       void * alt  is the place where the alternative name will be copied to

       size_t * alt_size
                   holds the size of alt.

       unsigned int * alt_type
                   holds the type of the alternative name (one of gnutls_x509_subject_alt_name_t).

       void * serial
                   buffer to store the serial number (may be null)

       size_t * serial_size
                   Holds the size of the serial field (may be null)

       unsigned int * critical
                   will be non-zero if the extension is marked as critical (may be null)

DESCRIPTION

       This   function  will  return  the  X.509  authority  key  identifier  when  stored  as  a  general  name
       (authorityCertIssuer) and serial number.

       Because more than one general names might be stored
        seq can be used as  a  counter  to  request  them  all  until  GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE  is
       returned.

RETURNS

       On  success,  GNUTLS_E_SUCCESS (0) is returned, GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if the extension is
       not present, otherwise a negative error value.

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification, are permitted in any medium  without
       royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained as a Texinfo manual.  If the /usr/share/doc/gnutls/
       directory does not contain the HTML form visit

       http://www.gnutls.org/manual/