[net] switch to INetworkListManager::GetConnectivity to detect connectivity

* InternetGetConnectedState() is next to useless and doesn't provide
  coherent outcome on the ARM64 platform I'm testing with. This results
  in Rufus declaring that Internet is unavailable on platforms that do
  have actual Internet connectivity.
* Swicth to using INetworkListManager::GetConnectivity(), which actually
  reports a dependable result.
* Closes #1691
* Also remove the mutex for uprintf(), which may produce thread lockout
  and remove an unwanted double GetSignatureName() call on startup.

res/appstore/Package.appxmanifest

@@ -10,7 +10,7 @@
   <Identity
     Name="19453.net.Rufus"
     Publisher="CN=7AC86D13-3E5A-491A-ADD5-80095C212740"
-    Version="3.13.1738.0" />
+    Version="3.13.1739.0" />
 
   <Properties>
     <DisplayName>Rufus</DisplayName>
@@ -36,7 +36,13 @@
         BackgroundColor="transparent"
         Square150x150Logo="Images\Square150x150Logo.png"
         Square44x44Logo="Images\Square44x44Logo.png">
-        <uap:DefaultTile Wide310x150Logo="Images\Wide310x150Logo.png"  Square71x71Logo="Images\SmallTile.png" Square310x310Logo="Images\LargeTile.png"/>
+        <uap:DefaultTile Wide310x150Logo="Images\Wide310x150Logo.png"  Square71x71Logo="Images\SmallTile.png" Square310x310Logo="Images\LargeTile.png">
+          <uap:ShowNameOnTiles>
+            <uap:ShowOn Tile="square150x150Logo"/>
+            <uap:ShowOn Tile="wide310x150Logo"/>
+            <uap:ShowOn Tile="square310x310Logo"/>
+          </uap:ShowNameOnTiles>
+        </uap:DefaultTile >
       </uap:VisualElements>
     </Application>
   </Applications>

src/format.c

@@ -2181,6 +2181,7 @@ DWORD WINAPI FormatThread(void* param)
 	}
 
 out:
+	// TODO: Use a thread or only issue this on DD write
 	VdsRescan(VDS_RESCAN_REFRESH, 0, TRUE);
 	safe_free(volume_name);
 	safe_free(buffer);

src/net.c

@@ -25,6 +25,7 @@
 
 #include <windows.h>
 #include <wininet.h>
+#include <netlistmgr.h>
 #include <stdio.h>
 #include <malloc.h>
 #include <string.h>
@@ -265,27 +266,32 @@ static HINTERNET GetInternetSession(BOOL bRetry)
 {
 	int i;
 	char agent[64];
-	BOOL r, decodingSupport = TRUE;
+	BOOL decodingSupport = TRUE;
-	DWORD dwFlags, dwTimeout = NET_SESSION_TIMEOUT, dwProtocolSupport = HTTP_PROTOCOL_FLAG_HTTP2;
+	DWORD dwTimeout = NET_SESSION_TIMEOUT, dwProtocolSupport = HTTP_PROTOCOL_FLAG_HTTP2;
 	HINTERNET hSession = NULL;
+	HRESULT hr = S_FALSE;
+	INetworkListManager* pNetworkListManager;
+	NLM_CONNECTIVITY Connectivity = NLM_CONNECTIVITY_DISCONNECTED;
 
-	PF_TYPE_DECL(WINAPI, BOOL, InternetGetConnectedState, (LPDWORD, DWORD));
 	PF_TYPE_DECL(WINAPI, HINTERNET, InternetOpenA, (LPCSTR, DWORD, LPCSTR, LPCSTR, DWORD));
 	PF_TYPE_DECL(WINAPI, BOOL, InternetSetOptionA, (HINTERNET, DWORD, LPVOID, DWORD));
-	PF_INIT_OR_OUT(InternetGetConnectedState, WinInet);
 	PF_INIT_OR_OUT(InternetOpenA, WinInet);
 	PF_INIT_OR_OUT(InternetSetOptionA, WinInet);
 
-	for (i = 0; i <= WRITE_RETRIES; i++) {
+	// Create a NetworkListManager Instance to check the network connection
-		r = pfInternetGetConnectedState(&dwFlags, 0);
+	IGNORE_RETVAL(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED));
-		if (r || !bRetry)
+	hr = CoCreateInstance(&CLSID_NetworkListManager, NULL, CLSCTX_ALL,
-			break;
+		&IID_INetworkListManager, (LPVOID*)&pNetworkListManager);
-		Sleep(1000);
+	if (hr == S_OK) {
+		for (i = 0; i <= WRITE_RETRIES; i++) {
+			hr = INetworkListManager_GetConnectivity(pNetworkListManager, &Connectivity);
+			if (hr == S_OK || !bRetry)
+				break;
+			Sleep(1000);
+		}
 	}
-	if (!r) {
+	if (Connectivity == NLM_CONNECTIVITY_DISCONNECTED) {
-		// http://msdn.microsoft.com/en-us/library/windows/desktop/aa384702.aspx is wrong...
+		SetLastError(ERROR_INTERNET_DISCONNECTED);
-		SetLastError(ERROR_INTERNET_NOT_INITIALIZED);
-		uprintf("Network is unavailable: %s", WinInetErrorString());
 		goto out;
 	}
 	static_sprintf(agent, APPLICATION_NAME "/%d.%d.%d (Windows NT %d.%d%s)",

src/rufus.c

@@ -3290,7 +3290,9 @@ skip_args_processing:
 	// Look for a .ini file in the current app directory
 	static_sprintf(ini_path, "%s\\rufus.ini", app_dir);
 	fd = fopenU(ini_path, ini_flags);	// Will create the file if portable mode is requested
-	vc |= (safe_strcmp(GetSignatureName(NULL, NULL), cert_name[0]) == 0);
+	// Using the string directly in safe_strcmp() would call GetSignatureName() twice
+	tmp = GetSignatureName(NULL, NULL);
+	vc |= (safe_strcmp(tmp, cert_name[0]) == 0);
 	if (fd != NULL) {
 		ini_file = ini_path;
 		fclose(fd);

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 232, 326
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 3.14.1738"
+CAPTION "Rufus 3.14.1739"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -395,8 +395,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 3,14,1738,0
+ FILEVERSION 3,14,1739,0
- PRODUCTVERSION 3,14,1738,0
+ PRODUCTVERSION 3,14,1739,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -414,13 +414,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "3.14.1738"
+            VALUE "FileVersion", "3.14.1739"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2021 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
             VALUE "OriginalFilename", "rufus-3.14.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "3.14.1738"
+            VALUE "ProductVersion", "3.14.1739"
         END
     END
     BLOCK "VarFileInfo"

src/stdio.c

@@ -43,7 +43,6 @@
 HWND hStatus;
 size_t ubuffer_pos = 0;
 char ubuffer[UBUFFER_SIZE];	// Buffer for ubpushf() messages we don't log right away
-static HANDLE print_mutex = NULL;
 
 void _uprintf(const char *format, ...)
 {
@@ -53,11 +52,6 @@ void _uprintf(const char *format, ...)
 	va_list args;
 	int n;
 
-	if (print_mutex == NULL)
-		print_mutex = CreateMutex(NULL, FALSE, NULL);
-	if (WaitForSingleObject(print_mutex, INFINITE) != WAIT_OBJECT_0)
-		return;
-
 	va_start(args, format);
 	n = safe_vsnprintf(p, sizeof(buf)-3, format, args); // buf-3 is room for CR/LF/NUL
 	va_end(args);
@@ -84,8 +78,6 @@ void _uprintf(const char *format, ...)
 		Edit_Scroll(hLog, Edit_GetLineCount(hLog), 0);
 	}
 	free(wbuf);
-
-	ReleaseMutex(print_mutex);
 }
 
 void _uprintfs(const char* str)