tfSntpUserSetSockOpt

Table of Contents >> Application Reference >> Simple Network Time Protocol

#include <trsocket.h>

int tfSntpUserSetSockOpt	(
	ttSntpHandle sntpHandle,
	int protocolLevel,
	int optionName,
	void TM_FAR * optionValuePtr,
	int optionLength
	);

Function Description

Set an option on the underlying UDP socket for an association. This is a wrapper function that calls setsockopt() (refer to that page for additional information).

If you are using the Strong End System Model (configuration macro TM_USE_STRONG_ESL), you can call tfSntpUserSetSockOpt() with the SO_BINDTODEVICE option to restrict I/O to a specific interface.

Parameters

• sntpHandle

  The SNTP client handle returned by tfSntpUserCreate().

• protocolLevel

  The protocol level of the option to set, e.g. SOL_SOCKET.

• optionName

  The socket option to set (see setsockopt()).

• optionValuePtr

  A pointer to the value to set.

• optionLength

  The size of the value to set.

Returns

• TM_ENOERROR

  Success.

• TM_EINVAL

  Invalid handle, option or length or optionValuePtr is NULL.

• (more)

  Other socket errors are possible. See setsockopt().

Table of Contents >> Application Reference >> Simple Network Time Protocol