NAME

       gnutls_x509_crt_get_subject_key_id - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int  gnutls_x509_crt_get_subject_key_id(gnutls_x509_crt_t  cert,  void  *  ret,  size_t  *
       ret_size, unsigned int * critical);

ARGUMENTS

       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       void * ret  The place where the identifier will be copied

       size_t * ret_size
                   Holds the size of the result field.

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

DESCRIPTION

       This function will return the X.509v3  certificate's  subject  key  identifier.   This  is
       obtained by the X.509 Subject Key identifier extension field (2.5.29.14).

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.

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/