gnutls_record_recv_seq(3) — Linux manual pages

Linux manual pages	Section 3: Subroutines

Name

gnutls_record_recv_seq — API function

Synopsis

#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 gnutls_session_t structure.
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.

DESCRIPTION

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

REPORTING BUGS

Report bugs to <bug-gnutls@gnu.org>.

General guidelines for reporting bugs: http://www.gnu.org/gethelp/

GnuTLS home page: http://www.gnu.org/software/gnutls/