]> git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/dllmain.c
Break out DllMain from crypto/cryptlib.c and use it in shared libs only
[thirdparty/openssl.git] / crypto / dllmain.c
1 #include "internal/cryptlib_int.h"
2
3 #if defined(_WIN32) || defined(__CYGWIN__)
4 # ifdef __CYGWIN__
5 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
6 # include <windows.h>
7 /*
8 * this has side-effect of _WIN32 getting defined, which otherwise is
9 * mutually exclusive with __CYGWIN__...
10 */
11 # endif
12
13 /*
14 * All we really need to do is remove the 'error' state when a thread
15 * detaches
16 */
17
18 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved);
19 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
20 {
21 switch (fdwReason) {
22 case DLL_PROCESS_ATTACH:
23 OPENSSL_cpuid_setup();
24 # if defined(_WIN32_WINNT)
25 {
26 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
27 IMAGE_NT_HEADERS *nt_headers;
28
29 if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
30 nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
31 + dos_header->e_lfanew);
32 if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
33 hinstDLL !=
34 (HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
35 OPENSSL_NONPIC_relocated = 1;
36 }
37 }
38 # endif
39 break;
40 case DLL_THREAD_ATTACH:
41 break;
42 case DLL_THREAD_DETACH:
43 OPENSSL_thread_stop();
44 break;
45 case DLL_PROCESS_DETACH:
46 break;
47 }
48 return (TRUE);
49 }
50 #endif
51