gnutls_x509_crt_get_extension_info3
Api function
Usage
#include <gnutls/x509.h>
int gnutls_x509_crt_get_extension_info(gnutls_x509_crt_t cert, unsigned indx, void * oid, size_t * oid_size, unsigned int * critical);
Arguments
gnutls_x509_crt_t cert
|
should contain a |
|---|---|
unsigned indx
|
Specifies which extension OID to send. Use (0) to get the first one. |
void * oid
|
a pointer to a structure to hold the OID |
size_t * oid_size
|
initially holds the maximum size of oid , on return holds actual size of oid . |
unsigned int * critical
|
output variable with critical flag, may be NULL. |
Overview
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() to extract the data.
If the buffer provided is not long enough to hold the output, then
oid_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned. The oid returned will be null terminated, although
oid_size will not account for the trailing null (the latter is not true for GnuTLS prior to 3.6.0).
Returns
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code is returned. If you have reached the last extension available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
Releases
9 releases since Debian 5.0 (Lenny); the text changed 8 times.