1socket_connect6(3)         Library Functions Manual         socket_connect6(3)
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NAME

6       socket_connect6 - attempt to make a TCP connection
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SYNTAX

9       #include <socket.h>
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11       int socket_connect6(int s, const char ip[16],
12                           uint16 port,uint32 scope_id);
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DESCRIPTION

15       socket_connect6  attempts to make a connection from TCP socket s to TCP
16       port port on IP address ip.
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18       The meaning of scope_id is dependent on the implementation and IPv6 IP.
19       On link-local IPv6 addresses it specifies the outgoing interface index.
20       The name (e.g. "eth0") for a given interface index can be queried  with
21       getifname.  scope_id should normally be set to 0.
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23       socket_connect6 may return
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26       ·      0,  to  indicate  that  the  connection succeeded (and succeeded
27              immediately, if the socket is non-blocking)
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29       ·      -1, setting errno to error_inprogress  or  error_wouldblock,  to
30              indicate that the socket is non-blocking
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32       ·      -1,  setting  errno to something else, to indicate that the con‐
33              nection failed (and failed immediately, if the  socket  is  non-
34              blocking).
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36       When a background connection succeeds or fails, s becomes writable; you
37       can use socket_connected to see whether the connection  succeeded.   If
38       the connection failed, socket_connected returns 0, setting errno appro‐
39       priately.
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41       Once a TCP socket is connected, you can use the read and  write  system
42       calls to transmit data.
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44       You  can  call  socket_connect6 without calling socket_bind6.  This has
45       the effect as first calling socket_bind6 with IP address :: and port 0.
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EXAMPLE

49         #include <socket.h>
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51         int s;
52         char ip[16];
53         uint16 p;
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55         s = socket_tcp6();
56         socket_bind6(s,ip,p);
57         socket_connect6(s,ip,p,0);
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SEE ALSO

61       socket_connect4(3), socket_getifname(3)
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65                                                            socket_connect6(3)
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