#include <nng/nng.h>
int nng_socket_proto_id(nng_socket s, uint16_t *id);
int nng_socket_peer_id(nng_socket s, uint16_t *id);nng_socket_proto_id(3)
NAME
nng_socket_proto_id - obtain the socket protocol id
SYNOPSIS
DESCRIPTION
These functions store the 16-bit protocol identifier of either the socket s, or its natural peer, in id.
These functions should be used in place of the NNG_OPT_PROTO and NNG_OPT_PEER
options in new code.
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RETURN VALUES
These functions return zero on success, or an error if the socket is invalid.
ERRORS
NNG_ECLOSED
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Parameter s does not refer to an open socket. |