NAME

       gnutls_x509_crq_get_dn_by_oid - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int  gnutls_x509_crq_get_dn_by_oid(gnutls_x509_crq_t crq, const char * oid, unsigned indx,
       unsigned int raw_flag, void * buf, size_t * buf_size);

ARGUMENTS

       gnutls_x509_crq_t crq
                   should contain a gnutls_x509_crq_t type

       const char * oid
                   holds an Object Identifier in a null terminated string

       unsigned indx
                   In case multiple same OIDs exist in the RDN, this specifies which to get.  Use
                   (0) to get the first one.

       unsigned int raw_flag
                   If non-zero returns the raw DER data of the DN part.

       void * 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  extract  the  part  of  the name of the Certificate request subject,
       specified by the given OID. The output will be encoded as described in RFC2253. The output
       string will be ASCII or UTF-8 encoded, depending on the certificate data.

       Some  helper  macros  with  popular OIDs can be found in gnutls/x509.h If raw flag is (0),
       this function will only return known OIDs as text. Other OIDs  will  be  DER  encoded,  as
       described in RFC2253 -- in hex format with a 'using gnutls_x509_dn_oid_known().

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.  On success 0 is returned.

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2001-2023 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

       https://www.gnutls.org/manual/