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struct net_tcpsocket *net_connect(const char *ip, unsigned short port);
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struct net_tcpsocket *net_connect(const char *ip, unsigned short port);
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/* checks whether or not a socket is connected. returns:
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/* checks whether or not a socket is connected. returns:
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* 0 = not connected,
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* 0 = not connected,
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* 1 = connected
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* 1 = connected
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* -1 = error
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* -1 = error */
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*
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* if waitstate is non-zero, then net_isconnected() may release a few cpu
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* cycles (useful when net_isconnected() is used within a busy loop). */
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int net_isconnected(struct net_tcpsocket *s, int waitstate);
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int net_isconnected(struct net_tcpsocket *s);
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/* Sends data on socket 'socket'.
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/* Sends data on socket 'socket'.
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Returns the number of bytes sent on success, and <0 otherwise. The error code can be translated into a human error message via libtcp_strerr(). */
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Returns the number of bytes sent on success, and <0 otherwise. The error code can be translated into a human error message via libtcp_strerr(). */
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int net_send(struct net_tcpsocket *socket, const char *line, long len);
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int net_send(struct net_tcpsocket *socket, const void *line, long len);
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/* Reads data from socket 'sock' and write it into buffer 'buff', until end of connection. Will fall into error if the amount of data is bigger than 'maxlen' bytes.
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/* Reads data from socket 'sock' and write it into buffer 'buff', until end of connection. Will fall into error if the amount of data is bigger than 'maxlen' bytes.
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Returns the amount of data read (in bytes) on success, or a negative value otherwise. The error code can be translated into a human error message via libtcp_strerr(). */
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Returns the amount of data read (in bytes) on success, or a negative value otherwise. The error code can be translated into a human error message via libtcp_strerr(). */
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int net_recv(struct net_tcpsocket *socket, char *buff, long maxlen);
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int net_recv(struct net_tcpsocket *socket, void *buff, long maxlen);
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/* Close the 'sock' socket. */
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/* Close the 'sock' socket. */
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void net_close(struct net_tcpsocket *socket);
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void net_close(struct net_tcpsocket *socket);
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/* Close the 'sock' socket immediately (to be used when the peer is behaving wrongly) - this is much faster than net_close(). */
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/* Close the 'sock' socket immediately (to be used when the peer is behaving wrongly) - this is much faster than net_close(). */
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