Remove vendored usvfs and Windows-only usvfs code paths

The Linux port uses its own in-process FUSE VFS (FuseConnector), so
usvfs was dead weight: libs/usvfs/ was never built, usvfsconnector.cpp
was explicitly REMOVE_ITEM'd from the source list, and every call site
was already guarded by #ifdef _WIN32 with a working Linux branch (the
Windows build is also broken on this branch, since FUSE3 is a hard
find_package dependency).

- Drop libs/usvfs/ and src/src/usvfsconnector.{cpp,h}
- Collapse #ifdef _WIN32 / usvfs include branches in organizercore,
  mainwindow, settings, util, spawn
- Remove getUsvfsVersionString() and the "usvfs: ..." log field
- Remove vfs32/64DLLName APPPARAMs (nothing reads them)
- Relabel About dialog "usvfs:" row to "VFS: FUSE 3"

1 files changed, 0 insertions, 86 deletions

diff --git a/libs/usvfs/src/thooklib/utility.cpp b/libs/usvfs/src/thooklib/utility.cpp
deleted file mode 100644
index 124141f..0000000
--- a/libs/usvfs/src/thooklib/utility.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
-Userspace Virtual Filesystem
-
-Copyright (C) 2015 Sebastian Herbord. All rights reserved.
-
-This file is part of usvfs.
-
-usvfs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-usvfs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with usvfs. If not, see <http://www.gnu.org/licenses/>.
-*/
-#include "utility.h"
-#include "exceptionex.h"
-#include <cstdlib>
-
-namespace HookLib
-{
-
-FARPROC MyGetProcAddress(HMODULE module, LPCSTR functionName)
-{
-  // determine position of the exports of the module
-  PIMAGE_DOS_HEADER dosHeader = (PIMAGE_DOS_HEADER)module;
-  if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
-    return nullptr;
-  }
-
-  PIMAGE_NT_HEADERS ntHeaders =
-      (PIMAGE_NT_HEADERS)(((LPBYTE)dosHeader) + dosHeader->e_lfanew);
-  if (ntHeaders->Signature != IMAGE_NT_SIGNATURE) {
-    return nullptr;
-  }
-
-  PIMAGE_OPTIONAL_HEADER optionalHeader = &ntHeaders->OptionalHeader;
-  if (optionalHeader->NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_EXPORT) {
-    return nullptr;
-  }
-  PIMAGE_DATA_DIRECTORY dataDirectory =
-      &optionalHeader->DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
-  PIMAGE_EXPORT_DIRECTORY exportDirectory =
-      (PIMAGE_EXPORT_DIRECTORY)((LPBYTE)dosHeader + dataDirectory->VirtualAddress);
-
-  ULONG* addressOfNames = (ULONG*)((LPBYTE)module + exportDirectory->AddressOfNames);
-  ULONG* funcAddr = (ULONG*)((LPBYTE)module + exportDirectory->AddressOfFunctions);
-
-  // search exports for the specified name
-  for (DWORD i = 0; i < exportDirectory->NumberOfNames; ++i) {
-    char* curFunctionName = (char*)((LPBYTE)module + addressOfNames[i]);
-    USHORT* nameOrdinals =
-        (USHORT*)((LPBYTE)module + exportDirectory->AddressOfNameOrdinals);
-    if (strcmp(functionName, curFunctionName) == 0) {
-      if (funcAddr[nameOrdinals[i]] >= dataDirectory->VirtualAddress &&
-          funcAddr[nameOrdinals[i]] <
-              dataDirectory->VirtualAddress + dataDirectory->Size) {
-        char* forwardLibName = _strdup((LPSTR)module + funcAddr[nameOrdinals[i]]);
-        ON_BLOCK_EXIT([forwardLibName]() {
-          free(forwardLibName);
-        });
-        char* forwardFunctionName = strchr(forwardLibName, '.');
-        *forwardFunctionName      = 0;
-        ++forwardFunctionName;
-
-        HMODULE forwardLib = LoadLibraryA(forwardLibName);
-        FARPROC forward    = nullptr;
-        if (forwardLib != nullptr) {
-          forward = MyGetProcAddress(forwardLib, forwardFunctionName);
-          FreeLibrary(forwardLib);
-        }
-
-        return forward;
-      }
-      return (FARPROC)((LPBYTE)module + funcAddr[nameOrdinals[i]]);
-    }
-  }
-  return nullptr;
-}
-
-}  // namespace HookLib