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Driver: Prefer Npcap

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Prefer Npcap over WinPcap and TCP
This commit is contained in:
Kyle Schwarz
2025-06-04 22:14:09 -04:00
parent b3d47f2ae5
commit c4e858d346
4 changed files with 9 additions and 17 deletions
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platform/windows/internal/pcapdll.cpp
+8 -14
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@@ -28,21 +28,15 @@ bool PCAPDLL::ok() const
PCAPDLL::PCAPDLL()
{
#ifdef NPCAP // Use -DLIBICSNEO_NPCAP_INCLUDE_DIR when configuring, point towards the npcap includes
DLL_DIRECTORY_COOKIE cookie = 0;
TCHAR dllPath[512] = { 0 };
int len = GetSystemDirectory(dllPath, 480); // be safe
if (len) {
_tcscat_s(dllPath, 512, TEXT("\\Npcap"));
cookie = AddDllDirectory(dllPath);
TCHAR dir[512] = {0};
if(GetSystemDirectory(dir, 480)) {
_tcscat_s(dir, 512, TEXT("\\Npcap"));
if(SetDllDirectory(dir)) {
// will search for Npcap first, then fall back to WinPcap
dll = LoadLibrary(TEXT("wpcap.dll"));
SetDllDirectory(nullptr); // reset
}
}
dll = LoadLibraryEx(TEXT("wpcap.dll"), nullptr, LOAD_LIBRARY_SEARCH_USER_DIRS);
if (cookie)
RemoveDllDirectory(cookie);
#else // Otherwise we'll use WinPCAP, or npcap in compatibility mode
dll = LoadLibrary(TEXT("wpcap.dll"));
#endif
if(dll == NULL) {
closeDLL();