gnutls_x509_crt_get_extension_data - Get the specified extension data


#include <gnutls/x509.h>

int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t cert, int indx, void * data, size_t * sizeof_data);


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 * data a pointer to a structure to hold the data (may be null)
size_t * sizeof_data initially holds the size of oid


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_crt_get_extension_info() to extract the OID and critical flag. Use gnutls_x509_crt_get_extension_by_oid() instead, if you want to get data indexed by the extension OID rather than sequence.

Return 0 on success. A negative value may be returned in case of parsing error. If you have reached the last extension available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.


Report bugs to <>.


Copyright © 2008 Free Software Foundation. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.


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.

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