1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* -*- 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: */
|
