gnutls_record_recv_early_data3
Api function
Usage
#include <gnutls/gnutls.h>
ssize_t gnutls_record_recv_early_data(gnutls_session_t session, void * data, size_t data_size);
Arguments
gnutls_session_t session
|
is a |
|---|---|
void * data
|
the buffer that the data will be read into |
size_t data_size
|
the number of requested bytes |
Overview
This function can be used by a server to retrieve data sent early in the handshake processes when resuming a session. This is used to implement a zero-roundtrip (0-RTT) mode. It has the same semantics as gnutls_record_recv().
This function can be called either in a handshake hook, or after the handshake is complete.
Returns
The number of bytes received and zero when early data reading is complete. A negative error code is returned in case of an error. If no early data is received during the handshake, this function returns GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE. The number of bytes received might be less than the requested
data_size .
Since
3.6.5
Releases
5 releases since Debian 10 (Buster); the text changed 4 times.