1
|
1 /**
|
|
2 * Orthanc - A Lightweight, RESTful DICOM Store
|
|
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
|
|
4 * Department, University Hospital of Liege, Belgium
|
116
|
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
|
1
|
6 *
|
|
7 * This program is free software: you can redistribute it and/or
|
|
8 * modify it under the terms of the GNU General Public License as
|
|
9 * published by the Free Software Foundation, either version 3 of the
|
|
10 * License, or (at your option) any later version.
|
|
11 *
|
|
12 * In addition, as a special exception, the copyright holders of this
|
|
13 * program give permission to link the code of its release with the
|
|
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
|
|
15 * that use the same license as the "OpenSSL" library), and distribute
|
|
16 * the linked executables. You must obey the GNU General Public License
|
|
17 * in all respects for all of the code used other than "OpenSSL". If you
|
|
18 * modify file(s) with this exception, you may extend this exception to
|
|
19 * your version of the file(s), but you are not obligated to do so. If
|
|
20 * you do not wish to do so, delete this exception statement from your
|
|
21 * version. If you delete this exception statement from all source files
|
|
22 * in the program, then also delete it here.
|
|
23 *
|
|
24 * This program is distributed in the hope that it will be useful, but
|
|
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
27 * General Public License for more details.
|
|
28 *
|
|
29 * You should have received a copy of the GNU General Public License
|
|
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
31 **/
|
|
32
|
|
33
|
|
34 #include "../../OrthancServer/PrecompiledHeadersServer.h"
|
|
35 #include "SharedLibrary.h"
|
|
36
|
39
|
37 #if ORTHANC_ENABLE_PLUGINS != 1
|
1
|
38 #error The plugin support is disabled
|
|
39 #endif
|
|
40
|
|
41
|
|
42 #include "../../Core/Logging.h"
|
|
43 #include "../../Core/Toolbox.h"
|
|
44
|
|
45 #include <boost/filesystem.hpp>
|
|
46
|
|
47 #if defined(_WIN32)
|
|
48 #include <windows.h>
|
107
|
49 #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
1
|
50 #include <dlfcn.h>
|
|
51 #else
|
|
52 #error Support your platform here
|
|
53 #endif
|
|
54
|
|
55 namespace Orthanc
|
|
56 {
|
|
57 SharedLibrary::SharedLibrary(const std::string& path) :
|
|
58 path_(path),
|
|
59 handle_(NULL)
|
|
60 {
|
|
61 #if defined(_WIN32)
|
|
62 handle_ = ::LoadLibraryA(path_.c_str());
|
|
63 if (handle_ == NULL)
|
|
64 {
|
|
65 LOG(ERROR) << "LoadLibrary(" << path_ << ") failed: Error " << ::GetLastError();
|
|
66 throw OrthancException(ErrorCode_SharedLibrary);
|
|
67 }
|
|
68
|
107
|
69 #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
1
|
70 handle_ = ::dlopen(path_.c_str(), RTLD_NOW);
|
|
71 if (handle_ == NULL)
|
|
72 {
|
|
73 std::string explanation;
|
|
74 const char *tmp = ::dlerror();
|
|
75 if (tmp)
|
|
76 {
|
|
77 explanation = ": Error " + std::string(tmp);
|
|
78 }
|
|
79
|
|
80 LOG(ERROR) << "dlopen(" << path_ << ") failed" << explanation;
|
|
81 throw OrthancException(ErrorCode_SharedLibrary);
|
|
82 }
|
|
83
|
|
84 #else
|
|
85 #error Support your platform here
|
|
86 #endif
|
|
87 }
|
|
88
|
|
89 SharedLibrary::~SharedLibrary()
|
|
90 {
|
|
91 if (handle_)
|
|
92 {
|
|
93 #if defined(_WIN32)
|
|
94 ::FreeLibrary((HMODULE)handle_);
|
107
|
95 #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
1
|
96 ::dlclose(handle_);
|
|
97 #else
|
|
98 #error Support your platform here
|
|
99 #endif
|
|
100 }
|
|
101 }
|
|
102
|
|
103
|
|
104 SharedLibrary::FunctionPointer SharedLibrary::GetFunctionInternal(const std::string& name)
|
|
105 {
|
|
106 if (!handle_)
|
|
107 {
|
|
108 throw OrthancException(ErrorCode_InternalError);
|
|
109 }
|
|
110
|
|
111 #if defined(_WIN32)
|
|
112 return ::GetProcAddress((HMODULE)handle_, name.c_str());
|
107
|
113 #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
1
|
114 return ::dlsym(handle_, name.c_str());
|
|
115 #else
|
|
116 #error Support your platform here
|
|
117 #endif
|
|
118 }
|
|
119
|
|
120
|
|
121 SharedLibrary::FunctionPointer SharedLibrary::GetFunction(const std::string& name)
|
|
122 {
|
|
123 SharedLibrary::FunctionPointer result = GetFunctionInternal(name);
|
|
124
|
|
125 if (result == NULL)
|
|
126 {
|
|
127 LOG(ERROR) << "Shared library does not expose function \"" << name << "\"";
|
|
128 throw OrthancException(ErrorCode_SharedLibrary);
|
|
129 }
|
|
130 else
|
|
131 {
|
|
132 return result;
|
|
133 }
|
|
134 }
|
|
135
|
|
136
|
|
137 bool SharedLibrary::HasFunction(const std::string& name)
|
|
138 {
|
|
139 return GetFunctionInternal(name) != NULL;
|
|
140 }
|
|
141 }
|