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authorBobTheBob <32057864+BobTheBob9@users.noreply.github.com>2022-01-02 22:32:36 +0000
committerGitHub <noreply@github.com>2022-01-02 22:32:36 +0000
commit3f629680f71b4694bd4eb78726537a91e10a2352 (patch)
tree137e44e28bbe372adeb616e3f20156ba23c08655 /loader_wsock32_proxy/dllmain.cpp
parentff875c0551c54bb187b5320b81029f8fe7f010fb (diff)
parentf7b96d1048acddc343244ddec87a996ebaf7cb5b (diff)
downloadNorthstarLauncher-3f629680f71b4694bd4eb78726537a91e10a2352.tar.gz
NorthstarLauncher-3f629680f71b4694bd4eb78726537a91e10a2352.zip
Merge pull request #19 from p0358/main
Big refactor of launching process
Diffstat (limited to 'loader_wsock32_proxy/dllmain.cpp')
-rw-r--r--loader_wsock32_proxy/dllmain.cpp137
1 files changed, 137 insertions, 0 deletions
diff --git a/loader_wsock32_proxy/dllmain.cpp b/loader_wsock32_proxy/dllmain.cpp
new file mode 100644
index 00000000..0b518dbe
--- /dev/null
+++ b/loader_wsock32_proxy/dllmain.cpp
@@ -0,0 +1,137 @@
+#include "pch.h"
+#include "loader.h"
+
+#include <Shlwapi.h>
+#include <filesystem>
+
+HINSTANCE hLThis = 0;
+FARPROC p[857];
+HINSTANCE hL = 0;
+
+bool GetExePathWide(wchar_t* dest, DWORD destSize)
+{
+ if (!dest) return NULL;
+ if (destSize < MAX_PATH) return NULL;
+
+ DWORD length = GetModuleFileNameW(NULL, dest, destSize);
+ return length && PathRemoveFileSpecW(dest);
+}
+
+wchar_t exePath[4096];
+wchar_t dllPath[8192];
+wchar_t dllPath2[4096];
+
+BOOL WINAPI DllMain(HINSTANCE hInst, DWORD reason, LPVOID)
+{
+ if (reason == DLL_PROCESS_ATTACH)
+ {
+ hLThis = hInst;
+
+ if (!GetExePathWide(exePath, 4096))
+ {
+ MessageBoxA(GetForegroundWindow(), "Failed getting game directory.\nThe game cannot continue and has to exit.", "Northstar Wsock32 Proxy Error", 0);
+ return 1;
+ }
+
+ if (!ProvisionNorthstar()) // does not call InitialiseNorthstar yet, will do it on LauncherMain hook
+ return 1;
+
+ // copy the original library for system to our local directory, with changed name so that we can load it
+ swprintf_s(dllPath, L"%s\\bin\\x64_retail\\wsock32.org.dll", exePath);
+ GetSystemDirectoryW(dllPath2, 4096);
+ swprintf_s(dllPath2, L"%s\\wsock32.dll", dllPath2);
+ try
+ {
+ std::filesystem::copy_file(dllPath2, dllPath);
+ }
+ catch (const std::exception& e)
+ {
+ if (!std::filesystem::exists(dllPath))
+ {
+ swprintf_s(dllPath, L"Failed copying wsock32.dll from system32 to \"%s\"\n\n%S", dllPath, e.what());
+ MessageBoxW(GetForegroundWindow(), dllPath, L"Northstar Wsock32 Proxy Error", 0);
+ }
+ }
+ hL = LoadLibraryExW(dllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH);
+ if (!hL) return false;
+
+ // load the functions to proxy
+ // it's only some of them, because in case of wsock32 most of the functions can actually be natively redirected
+ // (see wsock32.def and https://source.winehq.org/WineAPI/wsock32.html)
+ p[1] = GetProcAddress(hL, "EnumProtocolsA");
+ p[2] = GetProcAddress(hL, "EnumProtocolsW");
+ p[4] = GetProcAddress(hL, "GetAddressByNameA");
+ p[5] = GetProcAddress(hL, "GetAddressByNameW");
+ p[17] = GetProcAddress(hL, "WEP");
+ p[30] = GetProcAddress(hL, "WSARecvEx");
+ p[36] = GetProcAddress(hL, "__WSAFDIsSet");
+ p[45] = GetProcAddress(hL, "getnetbyname");
+ p[52] = GetProcAddress(hL, "getsockopt");
+ p[56] = GetProcAddress(hL, "inet_network");
+ p[67] = GetProcAddress(hL, "s_perror");
+ p[72] = GetProcAddress(hL, "setsockopt");
+ }
+
+ if (reason == DLL_PROCESS_DETACH)
+ {
+ FreeLibrary(hL);
+ return 1;
+ }
+
+ return 1;
+}
+
+extern "C"
+{
+ FARPROC PA = NULL;
+ int RunASM();
+
+ void PROXY_EnumProtocolsA() {
+ PA = p[1];
+ RunASM();
+ }
+ void PROXY_EnumProtocolsW() {
+ PA = p[2];
+ RunASM();
+ }
+ void PROXY_GetAddressByNameA() {
+ PA = p[4];
+ RunASM();
+ }
+ void PROXY_GetAddressByNameW() {
+ PA = p[5];
+ RunASM();
+ }
+ void PROXY_WEP() {
+ PA = p[17];
+ RunASM();
+ }
+ void PROXY_WSARecvEx() {
+ PA = p[30];
+ RunASM();
+ }
+ void PROXY___WSAFDIsSet() {
+ PA = p[36];
+ RunASM();
+ }
+ void PROXY_getnetbyname() {
+ PA = p[45];
+ RunASM();
+ }
+ void PROXY_getsockopt() {
+ PA = p[52];
+ RunASM();
+ }
+ void PROXY_inet_network() {
+ PA = p[56];
+ RunASM();
+ }
+ void PROXY_s_perror() {
+ PA = p[67];
+ RunASM();
+ }
+ void PROXY_setsockopt() {
+ PA = p[72];
+ RunASM();
+ }
+} \ No newline at end of file