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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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 file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <cstddef>
#define WIN32_LEAN_AND_MEAN
#if defined _MSC_VER
#pragma warning(push, 1)
#endif
#include <windows.h>
#include <shlwapi.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif
#include <tools/pathutils.hxx>
#include "extendloaderenvironment.hxx"
namespace {
void fail() {
LPWSTR buf = NULL;
FormatMessageW(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL,
GetLastError(), 0, reinterpret_cast< LPWSTR >(&buf), 0, NULL);
MessageBoxW(NULL, buf, NULL, MB_OK | MB_ICONERROR);
LocalFree(buf);
TerminateProcess(GetCurrentProcess(), 255);
}
bool contains(WCHAR const * paths, WCHAR const * path, WCHAR const * pathEnd) {
WCHAR const * q = path;
for (WCHAR const * p = paths;; ++p) {
WCHAR c = *p;
switch (c) {
case L'\0':
return q == pathEnd;
case L';':
if (q == pathEnd) {
return true;
}
q = path;
break;
default:
if (q != NULL) {
if (q != pathEnd && *q == c) {
++q;
} else {
q = NULL;
}
}
break;
}
}
}
}
namespace desktop_win32 {
void extendLoaderEnvironment(WCHAR * binPath, WCHAR * iniDirectory) {
if (!GetModuleFileNameW(NULL, iniDirectory, MAX_PATH)) {
fail();
}
WCHAR * iniDirEnd = tools::filename(iniDirectory);
WCHAR name[MAX_PATH + MY_LENGTH(L".bin")];
// hopefully std::size_t is large enough to not overflow
WCHAR * nameEnd = name;
for (WCHAR * p = iniDirEnd; *p != L'\0'; ++p) {
*nameEnd++ = *p;
}
if (!(nameEnd - name >= 4 && nameEnd[-4] == L'.' &&
(nameEnd[-3] == L'E' || nameEnd[-3] == L'e') &&
(nameEnd[-2] == L'X' || nameEnd[-2] == L'x') &&
(nameEnd[-1] == L'E' || nameEnd[-1] == L'e')))
{
*nameEnd = L'.';
nameEnd += 4;
}
nameEnd[-3] = 'b';
nameEnd[-2] = 'i';
nameEnd[-1] = 'n';
tools::buildPath(binPath, iniDirectory, iniDirEnd, name, nameEnd - name);
*iniDirEnd = L'\0';
std::size_t const maxEnv = 32767;
WCHAR pad[MAX_PATH + maxEnv];
// hopefully std::size_t is large enough to not overflow
WCHAR * pathEnd = tools::buildPath(
pad, iniDirectory, iniDirEnd, MY_STRING(L"..\\ure-link"));
if (pathEnd == NULL) {
fail();
}
pathEnd = tools::resolveLink(pad);
if (pathEnd == NULL) {
fail();
}
pathEnd = tools::buildPath(pad, pad, pathEnd, MY_STRING(L"\\bin"));
if (pathEnd == NULL) {
fail();
}
WCHAR env[maxEnv];
DWORD n = GetEnvironmentVariableW(L"PATH", env, maxEnv);
if ((n >= maxEnv || n == 0) && GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
fail();
}
env[n] = L'\0';
if (!contains(env, pad, pathEnd)) {
WCHAR * p = pathEnd;
if (n != 0) {
*p++ = L';';
}
for (DWORD i = 0; i <= n; ++i) {
*p++ = env[i];
}
if (!SetEnvironmentVariableW(L"PATH", pad)) {
fail();
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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