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-rw-r--r--solenv/wsl/wsl-lo-helper.cpp246
1 files changed, 246 insertions, 0 deletions
diff --git a/solenv/wsl/wsl-lo-helper.cpp b/solenv/wsl/wsl-lo-helper.cpp
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index 000000000..1a90580b6
--- /dev/null
+++ b/solenv/wsl/wsl-lo-helper.cpp
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ * This is a tool that will be useful for various tasks if/when we build LO on WSL
+ *
+ * It is a Win32 program, not a Linux (WSL) one.
+ *
+ * Compile as: cl -MD wsl-lo-helper.cpp advapi32.lib
+ */
+
+#include <cstdio>
+#include <cstring>
+
+#include <Windows.h>
+
+static void print_result(const wchar_t* argv0, const wchar_t* result)
+{
+ char output[1000];
+ if (WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, result, -1, output, sizeof(output), NULL,
+ NULL)
+ == 0)
+ {
+ fprintf(stderr, "%S --8.3: Could not convert result to UTF-8.\n", argv0);
+ exit(1);
+ }
+
+ // Intentionally output no newline at end
+ printf("%s", output);
+ fflush(stdout);
+}
+
+static REGSAM parse_bitness(const wchar_t* argv0, const wchar_t* command, const wchar_t* bitness)
+{
+ if (wcscmp(bitness, L"32") == 0)
+ return KEY_WOW64_32KEY;
+ else if (wcscmp(bitness, L"64") == 0)
+ return KEY_WOW64_64KEY;
+ else
+ {
+ fprintf(stderr, "%S %S: Use 32 or 64.\n", argv0, command);
+ exit(1);
+ }
+}
+
+static void parse_hive(const wchar_t* argv0, const wchar_t* path, HKEY* hivep,
+ const wchar_t** hive_namep)
+{
+ if (wcscmp(path, L"HKEY_CLASSES_ROOT") == 0)
+ {
+ *hivep = HKEY_CLASSES_ROOT;
+ *hive_namep = L"HKEY_CLASSES_ROOT";
+ }
+ else if (wcscmp(path, L"HKEY_CURRENT_CONFIG") == 0)
+ {
+ *hivep = HKEY_CURRENT_CONFIG;
+ *hive_namep = L"HKEY_CURRENT_CONFIG";
+ }
+ else if (wcscmp(path, L"HKEY_CURRENT_USER") == 0)
+ {
+ *hivep = HKEY_CURRENT_USER;
+ *hive_namep = L"HKEY_CURRENT_USER";
+ }
+ else if (wcscmp(path, L"HKEY_LOCAL_MACHINE") == 0)
+ {
+ *hivep = HKEY_LOCAL_MACHINE;
+ *hive_namep = L"HKEY_LOCAL_MACHINE";
+ }
+ else if (wcscmp(path, L"HKEY_USERS") == 0)
+ {
+ *hivep = HKEY_USERS;
+ *hive_namep = L"HKEY_USERS";
+ }
+ else
+ {
+ fprintf(stderr, "%S: Invalid Registry hive %S.\n", argv0, path);
+ exit(1);
+ }
+}
+
+int wmain(int argc, wchar_t** argv)
+{
+ if (argc <= 1)
+ {
+ fprintf(stderr, "%S: Usage:\n", argv[0]);
+ fprintf(stderr, "%S --8.3 <windows-pathname>\n", argv[0]);
+ fprintf(stderr, " Print the 8.3 form of a Windows pathnam. Fail it not present.\n");
+ fprintf(stderr, "%S --read-registry [32|64] <path>\n", argv[0]);
+ fprintf(stderr, " Read a string value from the Registry and print it.\n");
+ fprintf(stderr, "%S --list-registry [32|64] <path>\n", argv[0]);
+ fprintf(stderr, " List subkeys of a key in the Registry.\n");
+ exit(1);
+ }
+
+ if (wcscmp(argv[1], L"--8.3") == 0)
+ {
+ if (argc != 3)
+ {
+ fprintf(stderr, "%S --8.3: One pathname argument expected\n", argv[0]);
+ exit(1);
+ }
+
+ // The argument should be a pathname in Windows format. The
+ // output will be the 8.3 pathname if present. If not present,
+ // return failure.
+
+ wchar_t woutput[1000];
+ if (GetShortPathNameW(argv[2], woutput, sizeof(woutput) / sizeof(woutput[0])) == 0)
+ {
+ fprintf(stderr, "%S --8.3: Could not get short pathname of %S.\n", argv[0], argv[2]);
+ exit(1);
+ }
+
+ print_result(argv[0], woutput);
+ }
+ else if (wcscmp(argv[1], L"--read-registry") == 0)
+ {
+ if (argc != 4)
+ {
+ fprintf(stderr, "%S --read-registry: Bitness and path arguments expected.\n", argv[0]);
+ exit(1);
+ }
+
+ REGSAM sam = parse_bitness(argv[0], L"--read-registry", argv[2]);
+
+ wchar_t* path = wcsdup(argv[3]);
+
+ for (wchar_t* p = path; *p != L'\0'; p++)
+ if (*p == '/')
+ *p = '\\';
+
+ wchar_t* const first_backslash = wcschr(path, L'\\');
+ if (first_backslash == NULL)
+ {
+ fprintf(stderr, "%S: Invalid path %S to value in the Registry.\n", argv[0], path);
+ exit(1);
+ }
+
+ *first_backslash = L'\0';
+ wchar_t* const key_path = first_backslash + 1;
+
+ HKEY hive;
+ const wchar_t* hive_name;
+ parse_hive(argv[0], path, &hive, &hive_name);
+
+ DWORD type;
+ wchar_t result[1000];
+ DWORD count = sizeof(result);
+
+ wchar_t* last_backslash = wcsrchr(key_path, L'\\');
+ if (last_backslash == NULL)
+ {
+ fprintf(stderr, "%S: Invalid path %S\\%S to value in the Registry.\n", argv[0],
+ hive_name, key_path);
+ exit(1);
+ }
+
+ *last_backslash = L'\0';
+ wchar_t* value = last_backslash + 1;
+
+ HKEY key;
+ if (RegOpenKeyExW(hive, key_path, 0, KEY_QUERY_VALUE | sam, &key) != ERROR_SUCCESS)
+ {
+ fprintf(stderr, "%S: Opening key %S\\%S in %S-bit Registry failed.\n", argv[0],
+ hive_name, key_path, argv[2]);
+ exit(1);
+ }
+
+ if (RegQueryValueExW(key, value, NULL, &type, (LPBYTE)result, &count) != ERROR_SUCCESS)
+ {
+ fprintf(stderr, "%S: Reading value %S\\%S\\%S from %S-bit Registry failed.\n", argv[0],
+ hive_name, key_path, value, argv[2]);
+ exit(1);
+ }
+ if (type != REG_SZ)
+ {
+ fprintf(stderr, "%S: Value %S\\%S\\%S is not a string.\n", argv[0], hive_name, key_path,
+ value);
+ exit(1);
+ }
+ print_result(argv[0], result);
+ }
+ else if (wcscmp(argv[1], L"--list-registry") == 0)
+ {
+ if (argc != 4)
+ {
+ fprintf(stderr, "%S --list-registry: Bitness and path arguments expected.\n", argv[0]);
+ exit(1);
+ }
+
+ REGSAM sam = parse_bitness(argv[0], L"--list-registry", argv[2]);
+
+ wchar_t* path = wcsdup(argv[3]);
+
+ for (wchar_t* p = path; *p != L'\0'; p++)
+ if (*p == '/')
+ *p = '\\';
+
+ wchar_t* const first_backslash = wcschr(path, L'\\');
+ if (first_backslash == NULL)
+ {
+ fprintf(stderr, "%S: Invalid path %S to key in the Registry.\n", argv[0], path);
+ exit(1);
+ }
+
+ *first_backslash = L'\0';
+ wchar_t* const key_path = first_backslash + 1;
+
+ HKEY hive;
+ const wchar_t* hive_name;
+ parse_hive(argv[0], path, &hive, &hive_name);
+
+ HKEY key;
+ if (RegOpenKeyExW(hive, key_path, 0, KEY_ENUMERATE_SUB_KEYS | sam, &key) != ERROR_SUCCESS)
+ {
+ fprintf(stderr, "%S: Opening key %S\\%S in %S-bit Registry failed.\n", argv[0],
+ hive_name, key_path, argv[2]);
+ exit(1);
+ }
+
+ DWORD index = 0;
+ wchar_t name[256];
+ DWORD namelen = sizeof(name) / sizeof(name[0]);
+ while (RegEnumKeyExW(key, index, name, &namelen, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)
+ {
+ printf("%S\n", name);
+ index++;
+ namelen = sizeof(name) / sizeof(name[0]);
+ }
+ }
+ else
+ {
+ fprintf(stderr, "%S: Unrecognized sub-command %S.\n", argv[0], argv[1]);
+ exit(1);
+ }
+
+ return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */