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

Related Topics
❍ optionName=PPP_IPCP_DNS_PRI: Size: 32 bit, sizeof(long) - Specifies the IP addresses of the primary DNS
server we will allow the remote to use or the primary DNS server we want to use. If this option is called with the value
0 and remotelocalflag==PPP_OPTION_WANT, then we allow the connected peer to report their primary DNS
server IP.
❍ optionName=PPP_IPCP_DNS_SEC: Size: 32 bit, sizeof(long) - Specifies the IP addresses of the secondary DNS
server we will allow the remote to use or the secondary DNS server we want to use. If this option is called with the
value 0 and remotelocalflag==PPP_OPTION_WANT, then we allow the connected peer to report their primary DNS
server IP.
API function PPPCLIENT_SET_OPTIONS - Set PPP client options
API function PPPSERVER_SET_OPTIONS - Set PPP server options
API function PPPCLIENT_GET_DNSIP - Get DNS IP
Developer Notes
If the option PPP_IPCP_PROTOCOL (VJ TCP/IP header compression) is set, it can be possible that the FTP server of the
IPC@CHIP is not usable via the PPP interface.
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recv_params
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struct recv_params
{
char far *bufferPtr; // Store incoming data here
int bufferLength; // Maximum bytes to store
int flags; // Blocking, timeout or no wait
struct sockaddr far *fromPtr; // Only needed for UDP.
int far *fromlengthPtr; // Only needed for UDP.
unsigned long timeout; // timeout milliseconds
};
This structure is defined in tcpip.h.
bufferPtr
This output parameter specifies the user buffer into which the received data will be placed by the system.
bufferLength
Size of user buffer at bufferPtr, places upper limit on bytes transferred.
flags
Set to one of following constants defined in tcpip.h:
MSG_BLOCKING: Sleep until data comes in
MSG_TIMEOUT : The caller wakes up after timeout or if data comes in. The structure member timeoutmust
be set.
MSG_DONTWAIT: Return immediately
fromPtr UDP only
This is an output parameter. The referenced sockaddrstructureis cast to a sockaddr_instructureprior to
usage. This field will be set by the system inside the API_RECVFROMcall to indicate the origin of the received UDP
data.
fromlengthPtr UDP only
The 16 bit value referenced by this pointer is both an input and output parameter, which should be preset to:
sizeof(struct sockaddr_in)
prior to calling API_RECVFROM.
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