nng_socket_proto_id - obtain the socket protocol id

NAME  SYNOPSIS  DESCRIPTION  RETURN VALUES  ERRORS  SEE ALSO 

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NAME

nng_socket_proto_id − obtain the socket protocol id

SYNOPSIS

#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);

DESCRIPTION

These functions store the 16−bit protocol identifier of either the socket s, or its natural peer, in id.

Tip

These functions should be used in place of the NNG_OPT_PROTO and NNG_OPT_PEER options in new code.

RETURN VALUES

These functions return zero on success, or an error if the socket is invalid.

ERRORS

NNG_ECLOSED

Parameter s does not refer to an open socket.

SEE ALSO

nng_socket(5), nng(7)

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