Solvline PB2xxxUG - Manual (Page 84)

U_read_lan
Read TCP Socket
Description This function reads a number of bytes (less than or equal to buff_size) from a
specified file descriptor and places them in buff.
Synopsis int U_read_lan (int fd, char *buff, int buff_size)
Parameters fd : File descriptor from which to read
buff : Pointer to buffer to receive bytes
buff_size : The maximum size of bytes to read into buffer
Returns -1 : If the file descriptor does not exist
0 : If end of file
n : The number of bytes read (between 1 and buff_size)
U_get_mac
Read Mac Address
Description This function gets the MAC address.
Synopsis int U_get_mac (char *buff)
Parameters buff : Where to return MAC address
Returns -1 : If failed
0 : If successfully gets
U_msnow
Read Timer
Description This function returns the interval between turning Portbase on and current in
10 m second.
Synopsis int msnow ()
Parameters
Returns 0~n : Interval time in 10 m second
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