gnutls_record_recv_seq3
Api function
Usage
#include <gnutls/gnutls.h>
ssize_t gnutls_record_recv_seq(gnutls_session_t session, void * data, size_t data_size, unsigned char * seq);
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 |
unsigned char * seq
|
is the packet's 64-bit sequence number. Should have space for 8 bytes. |
Overview
This function is the same as gnutls_record_recv(), except that it returns in addition to data, the sequence number of the data. This is useful in DTLS where record packets might be received out-of-order. The returned 8-byte sequence number is an integer in big-endian format and should be treated as a unique message identification.
Returns
The number of bytes received and zero on EOF. A negative error code is returned in case of an error. The number of bytes received might be less than data_size .
Since
3.0
Releases
7 releases since Debian 8 (Jessie); the text changed 6 times.