NAME

       gnutls_x509_crt_get_issuer_dn - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_issuer_dn(gnutls_x509_crt_t cert, char * buf, size_t * buf_size);

ARGUMENTS

       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       char * buf  a pointer to a structure to hold the name (may be null)

       size_t * buf_size
                   initially holds the size of  buf

DESCRIPTION

       This  function  will  copy  the name of the Certificate issuer in the provided buffer. The
       name will be in the form "C=xxxx,O=yyyy,CN=zzzz"  as  described  in  RFC4514.  The  output
       string will be ASCII or UTF-8 encoded, depending on the certificate data.

       If  buf is null then only the size will be filled.

       This  function  does  not output a fully RFC4514 compliant string, if that is required see
       gnutls_x509_crt_get_issuer_dn3().

RETURNS

       GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long enough, and in  that  case
       the       buf_size      will      be      updated      with     the     required     size.
       GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if the DN does not exist, or another error value  on
       error. On success 0 is returned.

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2001-2022 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/