[misc] try to support folks who use a symlink for their temp dir

* Microsoft's WIM mounting APIs can't use symlinked directories and
  some folks want to use a symlinked temp dir...
* Closes #2084

.github/issue_template.md

@@ -25,7 +25,7 @@ Checklist
 ---------
 - [ ] I looked at https://github.com/pbatard/rufus/wiki/FAQ to see if my question has already been answered.
 - [ ] I performed a search in the issue tracker for similar issues using keywords relevant to my problem, such as the error message I got from the log.
-- [ ] I clicked the 'Log' button or pressed <kbd>Ctrl</kbd>-<kbd>L</kbd> in Rufus, or used [DebugView](https://learn.microsoft.com/en-us/sysinternals/downloads/debugview), and copy/pasted the log into the section that says `<FULL LOG>` below.
+- [ ] I clicked the 'Log' button (🗒️) or pressed <kbd>Ctrl</kbd>-<kbd>L</kbd> in Rufus, or used [DebugView](https://learn.microsoft.com/en-us/sysinternals/downloads/debugview), and copy/pasted the log into the section that says `<FULL LOG>` below.
 - [ ] The log I am copying is the FULL log, starting with the line `Rufus version: x.y.z` - I have NOT removed any part of it.
 
 Additionally (if applicable):

ChangeLog.txt

@@ -3,7 +3,7 @@ o Version 4.1 (2023.05.31)
     Restore MS-DOS drive creation through the download of binaries from Microsoft
     Update the log button icon
     Fix UEFI:NTFS incompatibility with Windows Dev Kit 2023 platform
-    Fix more out of range pointer errors with Ubuntu/Fedora when booting in BIOS mode
+    Fix more GRUB 'out of range pointer' errors with Ubuntu/Fedora when booting in BIOS mode
 
 o Version 4.0 (2023.04.26)
     Fix persistent partition not working with Ubuntu 23.04

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for rufus 4.1.
+# Generated by GNU Autoconf 2.71 for rufus 4.2.
 #
 # Report bugs to <https://github.com/pbatard/rufus/issues>.
 #
@@ -611,8 +611,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='rufus'
 PACKAGE_TARNAME='rufus'
-PACKAGE_VERSION='4.1'
+PACKAGE_VERSION='4.2'
-PACKAGE_STRING='rufus 4.1'
+PACKAGE_STRING='rufus 4.2'
 PACKAGE_BUGREPORT='https://github.com/pbatard/rufus/issues'
 PACKAGE_URL='https://rufus.ie'
 
@@ -1269,7 +1269,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures rufus 4.1 to adapt to many kinds of systems.
+\`configure' configures rufus 4.2 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1336,7 +1336,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of rufus 4.1:";;
+     short | recursive ) echo "Configuration of rufus 4.2:";;
    esac
   cat <<\_ACEOF
 
@@ -1428,7 +1428,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-rufus configure 4.1
+rufus configure 4.2
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1504,7 +1504,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by rufus $as_me 4.1, which was
+It was created by rufus $as_me 4.2, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -2767,7 +2767,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='rufus'
- VERSION='4.1'
+ VERSION='4.2'
 
 
 printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
@@ -5309,7 +5309,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by rufus $as_me 4.1, which was
+This file was extended by rufus $as_me 4.2, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5365,7 +5365,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-rufus config.status 4.1
+rufus config.status 4.2
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([rufus], [4.1], [https://github.com/pbatard/rufus/issues], [rufus], [https://rufus.ie])
+AC_INIT([rufus], [4.2], [https://github.com/pbatard/rufus/issues], [rufus], [https://rufus.ie])
 AM_INIT_AUTOMAKE([-Wno-portability foreign no-dist no-dependencies])
 AC_CONFIG_SRCDIR([src/rufus.c])
 AC_CONFIG_MACRO_DIR([m4])

src/iso.c

@@ -1104,7 +1104,7 @@ out:
 			// Extract all of the isolinux.bin files we found to identify their versions
 			for (i=0; i<isolinux_path.Index; i++) {
 				char isolinux_tmp[MAX_PATH];
-				static_sprintf(isolinux_tmp, "%s\\isolinux.tmp", temp_dir);
+				static_sprintf(isolinux_tmp, "%sisolinux.tmp", temp_dir);
 				size = (size_t)ExtractISOFile(src_iso, isolinux_path.String[i], isolinux_tmp, FILE_ATTRIBUTE_NORMAL);
 				if (size == 0) {
 					uprintf("  Could not access %s", isolinux_path.String[i]);

src/msapi_utf8.h

@@ -724,6 +724,21 @@ static __inline DWORD GetModuleFileNameExU(HANDLE hProcess, HMODULE hModule, cha
 	return ret;
 }
 
+static __inline DWORD GetFinalPathNameByHandleU(HANDLE hFile, char* lpszFilePath, DWORD cchFilePath, DWORD dwFlags)
+{
+	DWORD ret = 0, err = ERROR_INVALID_DATA;
+	walloc(lpszFilePath, cchFilePath);
+	ret = GetFinalPathNameByHandleW(hFile, wlpszFilePath, cchFilePath, dwFlags);
+	err = GetLastError();
+	if ((ret != 0)
+		&& ((ret = wchar_to_utf8_no_alloc(wlpszFilePath, lpszFilePath, cchFilePath)) == 0)) {
+		err = GetLastError();
+	}
+	wfree(lpszFilePath);
+	SetLastError(err);
+	return ret;
+}
+
 static __inline DWORD GetFileVersionInfoSizeU(const char* lpFileName, LPDWORD lpdwHandle)
 {
 	DWORD ret = 0, err = ERROR_INVALID_DATA;

src/process.c

@@ -159,6 +159,9 @@ static NTSTATUS PhDestroyHeap(VOID)
  */
 static PVOID PhAllocate(SIZE_T Size)
 {
+	if (PhHeapHandle == NULL)
+		return NULL;
+
 	PF_INIT(RtlAllocateHeap, Ntdll);
 	if (pfRtlAllocateHeap == NULL)
 		return NULL;
@@ -174,8 +177,10 @@ static PVOID PhAllocate(SIZE_T Size)
  */
 static VOID PhFree(PVOID Memory)
 {
-	PF_INIT(RtlFreeHeap, Ntdll);
+	if (PhHeapHandle == NULL)
+		return;
 
+	PF_INIT(RtlFreeHeap, Ntdll);
 	if (pfRtlFreeHeap != NULL)
 		pfRtlFreeHeap(PhHeapHandle, 0, Memory);
 }

src/rufus.c

@@ -3398,9 +3398,30 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
 		uprintf("Could not get system directory: %s", WindowsErrorString());
 		static_strcpy(system_dir, "C:\\Windows\\System32");
 	}
+	// Per documentation, the returned string ends with a backslash
 	if (GetTempPathU(sizeof(temp_dir), temp_dir) == 0) {
 		uprintf("Could not get temp directory: %s", WindowsErrorString());
 		static_strcpy(temp_dir, ".\\");
+	} else {
+		// Some folks have found nothing better than configure their Windows installation to use
+		// a symlink for their temp dir, and it so happens that the Windows WIM mounting facility,
+		// which we need for applying the WUE options, can't handle symlinked directories. So we
+		// *attempt* to resolve the actual symlinked temp dir for this super limited number of
+		// users, with the hope that doing so is not going to break stuff elsewhere...
+		HANDLE handle = CreateFileU(temp_dir, GENERIC_READ, FILE_SHARE_READ, NULL,
+			OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+		// GetFinalPathNameByHandle returns a UNC path, which should be prefixed by '\\?\' or '\\.\'
+		if ((GetFinalPathNameByHandleU(handle, temp_dir, sizeof(temp_dir), FILE_NAME_OPENED) == 0) ||
+			((strstr(temp_dir, "\\\\?\\") != temp_dir) && (strstr(temp_dir, "\\\\.\\") != temp_dir))) {
+			uprintf("Could not get actual temp directory: %s", WindowsErrorString());
+			static_strcpy(temp_dir, ".\\");
+		} else {
+			// Need to remove the '\\?\' prefix or else we'll get issues with the Fido icon
+			strcpy(temp_dir, &temp_dir[4]);
+			// And me must re-append the '\' that gets removed by GetFinalPathNameByHandle()
+			static_strcat(temp_dir, "\\");
+		}
+		CloseHandle(handle);
 	}
 	if (!SHGetSpecialFolderPathU(NULL, app_data_dir, CSIDL_LOCAL_APPDATA, FALSE)) {
 		uprintf("Could not get app data directory: %s", WindowsErrorString());

src/rufus.h

@@ -75,7 +75,7 @@
 #define MAX_PARTITIONS              16			// Maximum number of partitions we handle
 #define MAX_ESP_TOGGLE              8			// Maximum number of entries we record to toggle GPT ESP back and forth
 #define MAX_IGNORE_USB              8			// Maximum number of USB drives we want to ignore
-#define MAX_ISO_TO_ESP_SIZE         512			// Maximum size we allow for the ISO → ESP option (in MB)
+#define MAX_ISO_TO_ESP_SIZE         1024		// Maximum size we allow for the ISO → ESP option (in MB)
 #define MAX_DEFAULT_LIST_CARD_SIZE  200			// Size above which we don't list a card without enable HDD or Alt-F (in GB)
 #define MAX_SECTORS_TO_CLEAR        128			// nb sectors to zap when clearing the MBR/GPT (must be >34)
 #define MAX_USERNAME_LENGTH         128			// Maximum size we'll accept for a WUE specified username
@@ -117,9 +117,9 @@
 #define FILES_URL                   RUFUS_URL "/files"
 #define FILES_DIR                   APPLICATION_NAME
 #define FIDO_VERSION                "z1"
-#define SECURE_BOOT_MORE_INFO_URL   "https://github.com/pbatard/rufus/wiki/FAQ#Why_do_I_need_to_disable_Secure_Boot_to_use_UEFINTFS"
+#define WPPRECORDER_MORE_INFO_URL   "https://github.com/pbatard/rufus/wiki/FAQ#bsods-with-windows-to-go-drives-created-from-windows-10-1809-isos"
-#define WPPRECORDER_MORE_INFO_URL   "https://github.com/pbatard/rufus/wiki/FAQ#BSODs_with_Windows_To_Go_drives_created_from_Windows_10_1809_ISOs"
+#define SEVENZIP_URL                "https://7-zip.org/"
-#define SEVENZIP_URL                "https://www.7-zip.org"
+// Generated by following https://randomascii.wordpress.com/2013/03/09/symbols-the-microsoft-way/
 #define DISKCOPY_URL                "https://msdl.microsoft.com/download/symbols/diskcopy.dll/54505118173000/diskcopy.dll"
 #define DISKCOPY_USER_AGENT         "Microsoft-Symbol-Server/10.0.22621.755"
 #define DISKCOPY_SIZE               0x16ee00

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 4.1.2045"
+CAPTION "Rufus 4.2.2047"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -392,8 +392,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,1,2045,0
+ FILEVERSION 4,2,2047,0
- PRODUCTVERSION 4,1,2045,0
+ PRODUCTVERSION 4,2,2047,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -411,13 +411,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "4.1.2045"
+            VALUE "FileVersion", "4.2.2047"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2023 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
-            VALUE "OriginalFilename", "rufus-4.1.exe"
+            VALUE "OriginalFilename", "rufus-4.2.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "4.1.2045"
+            VALUE "ProductVersion", "4.2.2047"
         END
     END
     BLOCK "VarFileInfo"