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Diffstat (limited to 'solenv/wsl/wsl-lo-helper.cpp')
| -rw-r--r-- | solenv/wsl/wsl-lo-helper.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/solenv/wsl/wsl-lo-helper.cpp b/solenv/wsl/wsl-lo-helper.cpp new file mode 100644 index 000000000..1a90580b6 --- /dev/null +++ b/solenv/wsl/wsl-lo-helper.cpp @@ -0,0 +1,246 @@ +/* -*- 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: */ |