table of contents
socket_connect6(3) | Library Functions Manual | socket_connect6(3) |
NAME¶
socket_connect6 - attempt to make a TCP connectionSYNTAX¶
#include <socket.h> int socket_connect6(int s, const char ip[16],uint16 port,uint32 scope_id);
DESCRIPTION¶
socket_connect6 attempts to make a connection from TCP socket s to TCP port port on IP address ip. The meaning of scope_id is dependent on the implementation and IPv6 IP. On link-local IPv6 addresses it specifies the outgoing interface index. The name (e.g. "eth0") for a given interface index can be queried with getifname. scope_id should normally be set to 0. socket_connect6 may return- •
- 0, to indicate that the connection succeeded (and succeeded immediately, if the socket is non-blocking)
- •
- -1, setting errno to error_inprogress or error_wouldblock, to indicate that the socket is non-blocking
- •
- -1, setting errno to something else, to indicate that the connection failed (and failed immediately, if the socket is non-blocking).
EXAMPLE¶
#include <socket.h>
int s;
char ip[16];
uint16 p;
s = socket_tcp6();
socket_bind6(s,ip,p);
socket_connect6(s,ip,p,0);