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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#include "precompiled_desktop.hxx"
#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';
WCHAR path[MAX_PATH];
WCHAR * pathEnd = tools::buildPath(
path, iniDirectory, iniDirEnd, MY_STRING(L"..\\basis-link"));
if (pathEnd == NULL) {
fail();
}
std::size_t const maxEnv = 32767;
WCHAR pad[2 * MAX_PATH + maxEnv];
// hopefully std::size_t is large enough to not overflow
WCHAR * padEnd = NULL;
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';
bool exclude1;
pathEnd = tools::resolveLink(path);
if (pathEnd == NULL) {
if (GetLastError() != ERROR_FILE_NOT_FOUND) {
fail();
}
// This path is only taken by testtool.exe in basis program directory;
// its PATH needs to include the brand program directory:
pathEnd = tools::buildPath(
path, iniDirectory, iniDirEnd, MY_STRING(L".."));
if (pathEnd == NULL) {
fail();
}
padEnd = tools::buildPath(
pad, path, pathEnd, MY_STRING(L"\\..\\program"));
if (padEnd == NULL) {
fail();
}
exclude1 = contains(env, pad, padEnd);
} else {
exclude1 = true;
}
WCHAR * pad2 = exclude1 ? pad : padEnd + 1;
pathEnd = tools::buildPath(path, path, pathEnd, MY_STRING(L"\\ure-link"));
if (pathEnd == NULL) {
fail();
}
pathEnd = tools::resolveLink(path);
if (pathEnd == NULL) {
fail();
}
padEnd = tools::buildPath(pad2, path, pathEnd, MY_STRING(L"\\bin"));
if (padEnd == NULL) {
fail();
}
bool exclude2 = contains(env, pad2, padEnd);
if (!(exclude1 && exclude2)) {
if (!(exclude1 || exclude2)) {
pad2[-1] = L';';
}
WCHAR * p = exclude2 ? pad2 - 1 : padEnd;
if (n != 0) {
*p++ = L';';
}
for (DWORD i = 0; i <= n; ++i) {
*p++ = env[i];
}
if (!SetEnvironmentVariableW(L"PATH", pad)) {
fail();
}
}
}
}
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