suse man page for gnutls_x509_crt_get_serial

gnutls_x509_crt_get_serial(3)					      gnutls					     gnutls_x509_crt_get_serial(3)

NAME
       gnutls_x509_crt_get_serial - This function returns the certificate's serial number

SYNOPSIS
       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_serial(gnutls_x509_crt_t cert, void * result, size_t * result_size);

ARGUMENTS
       gnutls_x509_crt_t cert
		   should contain a gnutls_x509_crt_t structure

       void * result
		   The place where the serial number will be copied

       size_t * result_size
		   Holds the size of the result field.

DESCRIPTION
       This  function  will  return the X.509 certificate's serial number.  This is obtained by the X509 Certificate serialNumber field. Serial is
       not always a 32 or 64bit number. Some CAs use large serial numbers, thus it may be wise to handle it as something opaque.

RETURNS
       On success, GNUTLS_E_SUCCESS is returned, otherwise a negative error value.and a negative value in case of an error.

REPORTING BUGS
       Report  bugs  to  <bug-gnutls@gnu.org>.	 GnuTLS  home  page:  http://www.gnu.org/software/gnutls/  General  help   using   GNU	 software:
       http://www.gnu.org/gethelp/

COPYRIGHT
       Copyright (C) 2008 Free Software Foundation.
       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 info and gnutls programs are properly installed at your  site,
       the command

	      info gnutls

       should give you access to the complete manual.

gnutls								       2.8.6					     gnutls_x509_crt_get_serial(3)