NAME
gnutls_x509_crt_get_extension_info - Get extension id and criticality
SYNOPSIS
#include <gnutls/x509.h>
int gnutls_x509_crt_get_extension_info(gnutls_x509_crt_t cert, int
indx, void * oid, size_t * sizeof_oid, int * critical);
ARGUMENTS
gnutls_x509_crt_t cert
should contain a gnutls_x509_crt_t structure
int indx Specifies which extension OID to send. Use zero to get the
first one.
void * oid a pointer to a structure to hold the OID
size_t * sizeof_oid
initially holds the maximum size of oid, on return holds
actual size of oid.
int * critical
output variable with critical flag, may be NULL.
DESCRIPTION
This function will return the requested extension OID in the
certificate, and the critical flag for it. The extension OID will be
stored as a string in the provided buffer. Use
gnutls_x509_crt_get_extension_data() to extract the data.
If the buffer provided is not long enough to hold the output, then
*sizeof_oid is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be
returned.
RETURNS
On success, GNUTLS_E_SUCCESS (zero) is returned, otherwise an error
code is returned. If you have reached the last extension available
GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
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 © 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.gnutls_x509_crt_get_extension_info(3)