IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

Related Topics
Top of list
Index page
CB_SOCKET_ERROR = $0040;
CB_RESET = $0080;
CB_CLOSE_COMPLT = $0100;
API_REGISTERCALLBACK For C language callback functions
Interrupt 0xAC service 0x21: API_GET_SOCKET_ERROR, Get last socket error.
Parameters
AH
BX
Returns the last error which occurred on the specified socket.
0x21 (= API_GET_SOCKET_ERROR)
Socket descriptor
Return Value
Top of list
Index page
DX =0: success AX: contains last socket error code
Interrupt 0xAC service 0x22: API_GET_TCP_STATE, Find TCP socket and return state.
Search for a TCP socket at a given local port number, returning the socket state, IP address and port number
of the remote peer (if any).
Parameters
AH
BX
ES:DI
0x22 (= API_GET_TCP_STATE)
Local port (e.g. htons(23) for telnet)
Pointer to storage 32 Bit remote IP address
Return Value
AL: contains last TCP socket state (see below)
If AL!=20 and AL bigger or equal 2 (a TCP connection is established), the storage at ES:DI holds the 32 bit IP
address of the connected remote peer
CX contains remote peer port number
Page 123 / 400