Stop using unimplemented cipher classes.
[openssl.git] / crypto / dllmain.c
1 /*
2  * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9
10 #include "e_os.h"
11 #include "internal/cryptlib_int.h"
12
13 #if defined(_WIN32) || defined(__CYGWIN__)
14 # ifdef __CYGWIN__
15 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
16 #  include <windows.h>
17 /*
18  * this has side-effect of _WIN32 getting defined, which otherwise is
19  * mutually exclusive with __CYGWIN__...
20  */
21 # endif
22
23 /*
24  * All we really need to do is remove the 'error' state when a thread
25  * detaches
26  */
27
28 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved);
29 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
30 {
31     switch (fdwReason) {
32     case DLL_PROCESS_ATTACH:
33         OPENSSL_cpuid_setup();
34 # if defined(_WIN32_WINNT)
35         {
36             IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
37             IMAGE_NT_HEADERS *nt_headers;
38
39             if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
40                 nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
41                                                    + dos_header->e_lfanew);
42                 if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
43                     hinstDLL !=
44                     (HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
45                     OPENSSL_NONPIC_relocated = 1;
46             }
47         }
48 # endif
49         break;
50     case DLL_THREAD_ATTACH:
51         break;
52     case DLL_THREAD_DETACH:
53         OPENSSL_thread_stop();
54         break;
55     case DLL_PROCESS_DETACH:
56         break;
57     }
58     return TRUE;
59 }
60 #endif
61