Packet Sniffer SDK DLL Edition

HNUserFilter :: Methods :: BpfSaveToFile

Saves the BPF program to the file.

Syntax:

DWORD __stdcall BpfSaveToFile(HANDLE hFtr, LPCTSTR FileName);

Parameters:

hFtr

[in] HNUserFilter object handle.

FileName

[in] A path to a file.

Return values:

HNERR_OK	No errors.
HNERR_SAVE_FILE_ERROR	Cannot write to a file.
HNERR_INVALID_HANDLE	hFtr parameter is not the HNUserFilter object handle.

Description:

Use the BpfSaveToFile function to save the BPF program to a file. The HNUserFilter component saves the BPF program in the HN_BPF_PROGRAMM structure format. For the further working with this program use the BpfLoadFromFile function.