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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/* -*- 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 <stdlib.h>
#include <string.h>
#include <cppuhelper/findsofficepath.h>
#if defined(_WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
/*
* Gets the installation path from the Windows Registry for the specified
* registry key.
*
* @param hroot open handle to predefined root registry key
* @param subKeyName name of the subkey to open
*
* @return the installation path or NULL, if no installation was found or
* if an error occurred
*/
static wchar_t* getPathFromRegistryKey( HKEY hroot, const wchar_t* subKeyName )
{
HKEY hkey;
DWORD type;
wchar_t* data = NULL;
DWORD size;
/* open the specified registry key */
if ( RegOpenKeyExW( hroot, subKeyName, 0, KEY_READ, &hkey ) != ERROR_SUCCESS )
{
return NULL;
}
/* find the type and size of the default value */
if ( RegQueryValueExW( hkey, NULL, NULL, &type, NULL, &size) != ERROR_SUCCESS )
{
RegCloseKey( hkey );
return NULL;
}
/* get memory to hold the default value */
data = (wchar_t*) malloc( size + sizeof(wchar_t) );
/* read the default value */
if ( RegQueryValueExW( hkey, NULL, NULL, &type, (LPBYTE) data, &size ) != ERROR_SUCCESS )
{
RegCloseKey( hkey );
free( data );
return NULL;
}
// According to https://msdn.microsoft.com/en-us/ms724911, If the data has the REG_SZ,
// REG_MULTI_SZ or REG_EXPAND_SZ type, the string may not have been stored with the
// proper terminating null characters
data[size / sizeof(wchar_t)] = 0;
/* release registry key handle */
RegCloseKey( hkey );
return data;
}
/*
* Gets the installation path from the Windows Registry.
*
* @return the installation path or NULL, if no installation was found or
* if an error occurred
*/
static wchar_t* platformSpecific()
{
const wchar_t* UNOPATHVARNAME = L"UNO_PATH";
/* get the installation path from the UNO_PATH environment variable */
wchar_t* env = _wgetenv(UNOPATHVARNAME);
if (env && env[0])
{
return wcsdup(env);
}
const wchar_t* SUBKEYNAME = L"Software\\LibreOffice\\UNO\\InstallPath";
/* read the key's default value from HKEY_CURRENT_USER */
wchar_t* path = getPathFromRegistryKey( HKEY_CURRENT_USER, SUBKEYNAME );
if ( path == NULL )
{
/* read the key's default value from HKEY_LOCAL_MACHINE */
path = getPathFromRegistryKey( HKEY_LOCAL_MACHINE, SUBKEYNAME );
}
return path;
}
#else
#include <unistd.h>
#include <limits.h>
/*
* Gets the installation path from the PATH environment variable.
*
* <p>An installation is found, if the executable 'soffice' or a symbolic link
* is in one of the directories listed in the PATH environment variable.</p>
*
* @return the installation path or NULL, if no installation was found or
* if an error occurred
*/
static char* platformSpecific(void)
{
const char* UNOPATHVARNAME = "UNO_PATH";
/* get the installation path from the UNO_PATH environment variable */
char* env = getenv(UNOPATHVARNAME);
const int SEPARATOR = '/';
const char* PATHSEPARATOR = ":";
const char* PATHVARNAME = "PATH";
const char* APPENDIX = "/libreoffice";
char* path = NULL;
char* str = NULL;
char* dir = NULL;
char* sep = NULL;
char buffer[PATH_MAX];
int pos;
if (env && env[0])
{
return strdup(env);
}
/* get the value of the PATH environment variable */
env = getenv( PATHVARNAME );
if (env == NULL)
return NULL;
str = strdup( env );
if (str == NULL)
return NULL;
/* get the tokens separated by ':' */
dir = strtok( str, PATHSEPARATOR );
while ( dir )
{
/* construct soffice file path */
char* resolved = NULL;
char* file = (char*) malloc( strlen( dir ) + strlen( APPENDIX ) + 1 );
if (file == NULL)
{
free(str);
return NULL;
}
strcpy( file, dir );
strcat( file, APPENDIX );
/* resolve symbolic link */
resolved = realpath( file, buffer );
if ( resolved != NULL )
{
/* get path to program directory */
sep = strrchr( resolved, SEPARATOR );
if ( sep != NULL )
{
pos = sep - resolved;
path = (char*) malloc( pos + 1 );
strncpy( path, resolved, pos );
path[ pos ] = '\0';
free( file );
break;
}
}
dir = strtok( NULL, PATHSEPARATOR );
free( file );
}
free( str );
return path;
}
#endif
#if defined(_WIN32)
wchar_t*
#else
char*
#endif
cppuhelper_detail_findSofficePath()
{
return platformSpecific();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
