1socket_connect4(3)         Library Functions Manual         socket_connect4(3)
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NAME

6       socket_connect4 - attempt to make a TCP connection
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SYNTAX

9       #include <socket.h>
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11       int socket_connect4(int s,const char ip[4],uint16 port);
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DESCRIPTION

14       socket_connect4  attempts to make a connection from TCP socket s to TCP
15       port port on IP address ip.
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17       socket_connect4 may return
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20       ·      0, to indicate that  the  connection  succeeded  (and  succeeded
21              immediately, if the socket is non-blocking)
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23       ·      -1,  setting  errno  to error_inprogress or error_wouldblock, to
24              indicate that the socket is non-blocking
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26       ·      -1, setting errno to something else, to indicate that  the  con‐
27              nection  failed  (and  failed immediately, if the socket is non-
28              blocking).
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30       When a background connection succeeds or fails, s becomes writable; you
31       can  use  socket_connected to see whether the connection succeeded.  If
32       the connection failed, socket_connected returns 0, setting errno appro‐
33       priately.
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35       Once  a  TCP socket is connected, you can use the read and write system
36       calls to transmit data.
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38       You can call socket_connect4 without calling  socket_bind4.   This  has
39       the  effect  as  first calling socket_bind4 with IP address 0.0.0.0 and
40       port 0.
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EXAMPLE

44         #include <socket.h>
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46         int s;
47         char ip[4];
48         uint16 p;
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50         s = socket_tcp4();
51         socket_bind4(s,ip,p);
52         socket_connect4(s,ip,p);
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SEE ALSO

56       socket_connect6(3), socket_fastopen_connect4(3)
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60                                                            socket_connect4(3)