refactor(win32): force CP_UTF8 to get rid of all wchar use except CommandLineToArgvW

See https://learn.microsoft.com/en-us/windows/apps/design/globalizing/use-utf8-code-page

But Windows doesn't provide CommandLineToArgvA() because in non-Unicode 
codepage environment, the encoding conversion is lossy and it may case 
security issue, so they said:

> To avoid this problem, use the GetCommandLineW function to receive the 
> Unicode command line, or use an application manifest (on Windows Version 1903 
> or later) to set UTF-8 as the process code page.
> https://learn.microsoft.com/en-us/windows/win32/api/processenv/nf-processenv-getcommandlinea#security-remarks

So Windows seems provide two solutions: one for legacy encoding, another 
for modern Unicode encoding. It's great, right? No!!! Windows actually 
only provide ONE solution! They never provide CommandLineToArgvA() at all. 
So altrought I can get UTF-8 version arguments from GetCommandLineA() but 
I can convert it into argv[] with UTF-8 encoding. I must pass it into 
CommandLineToArgvW() to get UTF-16LE version argv[], and convert it into 
UTF-8 with a annoying loop and WideCharToMultiByte(). It's crazy!!!

Signed-off-by: Coelacanthus <uwu@coelacanthus.name>

Author: CoelacanthusHex

driver/apdu/at_win32.c

@@ -35,40 +35,35 @@ static void enumerate_com_ports(cJSON *data) {
     SP_DEVINFO_DATA devInfoData;
     DWORD i;
 
-    hDevInfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_PORTS, 0, 0, DIGCF_PRESENT);
+    hDevInfo = SetupDiGetClassDevsA(&GUID_DEVCLASS_PORTS, 0, 0, DIGCF_PRESENT);
     if (hDevInfo == INVALID_HANDLE_VALUE)
         return;
 
     devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
     for (i = 0; SetupDiEnumDeviceInfo(hDevInfo, i, &devInfoData); i++) {
-        wchar_t portName[256] = {0};
-        wchar_t friendlyName[256] = {0};
-        char portNameMB[256] = {0};
-        char friendlyNameMB[256] = {0};
+        char portName[256] = {0};
+        char friendlyName[256] = {0};
         DWORD size = sizeof(portName);
 
         HKEY hKey = SetupDiOpenDevRegKey(hDevInfo, &devInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
         if (hKey != INVALID_HANDLE_VALUE) {
             DWORD type;
-            if (RegQueryValueExW(hKey, L"PortName", NULL, &type, (LPBYTE)portName, &size) != ERROR_SUCCESS
+            if (RegQueryValueExA(hKey, "PortName", NULL, &type, (LPBYTE)portName, &size) != ERROR_SUCCESS
                 || type != REG_SZ) {
                 portName[0] = L'\0';
             }
         }
 
-        if (!SetupDiGetDeviceRegistryPropertyW(hDevInfo, &devInfoData, SPDRP_FRIENDLYNAME, NULL, (PBYTE)friendlyName,
+        if (!SetupDiGetDeviceRegistryPropertyA(hDevInfo, &devInfoData, SPDRP_FRIENDLYNAME, NULL, (PBYTE)friendlyName,
                                                sizeof(friendlyName), NULL)) {
             friendlyName[0] = L'\0';
         }
 
-        WideCharToMultiByte(CP_UTF8, 0, portName, -1, portNameMB, sizeof(portNameMB), NULL, NULL);
-        WideCharToMultiByte(CP_UTF8, 0, friendlyName, -1, friendlyNameMB, sizeof(friendlyNameMB), NULL, NULL);
-
-        if (starts_with(portNameMB, "COM")) {
+        if (starts_with(portName, "COM")) {
             cJSON *item = cJSON_CreateObject();
             if (item) {
-                cJSON_AddStringToObject(item, "env", portNameMB);
-                cJSON_AddStringToObject(item, "name", friendlyNameMB[0] ? friendlyNameMB : portNameMB);
+                cJSON_AddStringToObject(item, "env", portName);
+                cJSON_AddStringToObject(item, "name", friendlyName[0] ? friendlyName : portName);
                 cJSON_AddItemToArray(data, item);
             } else {
                 cJSON_Delete(item);
@@ -171,16 +166,13 @@ static int apdu_interface_connect(struct euicc_ctx *ctx) {
 
     logic_channel = 0;
 
-    char dev_ascii[64];
-    snprintf(dev_ascii, sizeof(dev_ascii), "\\\\.\\%s", device);
-
-    wchar_t devname[64];
-    mbstowcs(devname, dev_ascii, sizeof(devname) / sizeof(wchar_t));
+    char devname[64];
+    snprintf(devname, sizeof(devname), "\\\\.\\%s", device);
 
-    hComm = CreateFileW(devname, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    hComm = CreateFile(devname, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
 
     if (hComm == INVALID_HANDLE_VALUE) {
-        fprintf(stderr, "Failed to open device: %s, error: %lu\n", dev_ascii, GetLastError());
+        fprintf(stderr, "Failed to open device: %s, error: %lu\n", devname, GetLastError());
         return -1;
     }
 

src/CMakeLists.txt

@@ -11,7 +11,7 @@ aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/applet/chip DIR_LPAC_SRCS)
 aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/applet/notification DIR_LPAC_SRCS)
 aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/applet/profile DIR_LPAC_SRCS)
 
-add_executable(lpac ${DIR_LPAC_SRCS})
+add_executable(lpac ${DIR_LPAC_SRCS} lpac.manifest)
 target_link_libraries(lpac euicc-drivers lpac-utils)
 target_include_directories(lpac PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
 

src/lpac.manifest

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity type="win32" name="me.estk.lpac" version="6.0.0.0"/>
+  <application>
+    <windowsSettings>
+      <activeCodePage xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">UTF-8</activeCodePage>
+    </windowsSettings>
+  </application>
+</assembly>