CentOS 7.0 - man page for gnutls_x509_crq_get_extension_data (centos section 3)

gnutls_x509_crq_get_extension_data(3)	      gnutls	    gnutls_x509_crq_get_extension_data(3)

NAME
       gnutls_x509_crq_get_extension_data - API function

SYNOPSIS
       #include <gnutls/x509.h>

       int  gnutls_x509_crq_get_extension_data(gnutls_x509_crq_t  crq,	int  indx,  void  * data,
       size_t * sizeof_data);

ARGUMENTS
       gnutls_x509_crq_t crq
		   should contain a gnutls_x509_crq_t structure

       int indx    Specifies which extension number to get. Use (0) to get the first one.

       void * data a pointer to a structure to hold the data (may be null)

       size_t * sizeof_data
		   initially holds the size of	oid

DESCRIPTION
       This function will return the requested extension data in the certificate.  The	extension
       data will be stored as a string in the provided buffer.

       Use  gnutls_x509_crq_get_extension_info()  to  extract  the  OID  and  critical flag.  Use
       gnutls_x509_crq_get_extension_by_oid() instead, if you want to get  data  indexed  by  the
       extension OID rather than sequence.

RETURNS
       On  success,  GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code in case of
       an    error.	If    your    have    reached	 the	 last	  extension	available
       GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

SINCE
       2.8.0

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

COPYRIGHT
       Copyright (C) 2012 Free Software Foundation, Inc..
       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.	As an alternative you may obtain the man-
       ual from:

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

gnutls					      3.1.15	    gnutls_x509_crq_get_extension_data(3)