2 * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
61 #include "internal/cryptlib.h"
62 #include <openssl/dso.h>
64 #if !defined(DSO_WIN32)
65 DSO_METHOD
*DSO_METHOD_win32(void)
73 static FARPROC
GetProcAddressA(HMODULE hModule
, LPCSTR lpProcName
)
75 WCHAR lpProcNameW
[64];
78 for (i
= 0; lpProcName
[i
] && i
< 64; i
++)
79 lpProcNameW
[i
] = (WCHAR
)lpProcName
[i
];
84 return GetProcAddressW(hModule
, lpProcNameW
);
87 # undef GetProcAddress
88 # define GetProcAddress GetProcAddressA
90 static HINSTANCE
LoadLibraryA(LPCSTR lpLibFileName
)
93 size_t len_0
= strlen(lpLibFileName
) + 1, i
;
96 fnamw
= (WCHAR
*)_alloca(len_0
* sizeof(WCHAR
));
98 fnamw
= (WCHAR
*)alloca(len_0
* sizeof(WCHAR
));
101 SetLastError(ERROR_NOT_ENOUGH_MEMORY
);
104 # if defined(_WIN32_WCE) && _WIN32_WCE>=101
105 if (!MultiByteToWideChar(CP_ACP
, 0, lpLibFileName
, len_0
, fnamw
, len_0
))
107 for (i
= 0; i
< len_0
; i
++)
108 fnamw
[i
] = (WCHAR
)lpLibFileName
[i
];
110 return LoadLibraryW(fnamw
);
114 /* Part of the hack in "win32_load" ... */
115 # define DSO_MAX_TRANSLATED_SIZE 256
117 static int win32_load(DSO
*dso
);
118 static int win32_unload(DSO
*dso
);
119 static void *win32_bind_var(DSO
*dso
, const char *symname
);
120 static DSO_FUNC_TYPE
win32_bind_func(DSO
*dso
, const char *symname
);
121 static char *win32_name_converter(DSO
*dso
, const char *filename
);
122 static char *win32_merger(DSO
*dso
, const char *filespec1
,
123 const char *filespec2
);
124 static int win32_pathbyaddr(void *addr
, char *path
, int sz
);
125 static void *win32_globallookup(const char *name
);
127 static const char *openssl_strnchr(const char *string
, int c
, size_t len
);
129 static DSO_METHOD dso_meth_win32
= {
130 "OpenSSL 'win32' shared library method",
136 win32_name_converter
,
144 DSO_METHOD
*DSO_METHOD_win32(void)
146 return (&dso_meth_win32
);
150 * For this DSO_METHOD, our meth_data STACK will contain; (i) a pointer to
151 * the handle (HINSTANCE) returned from LoadLibrary(), and copied.
154 static int win32_load(DSO
*dso
)
156 HINSTANCE h
= NULL
, *p
= NULL
;
157 /* See applicable comments from dso_dl.c */
158 char *filename
= DSO_convert_filename(dso
, NULL
);
160 if (filename
== NULL
) {
161 DSOerr(DSO_F_WIN32_LOAD
, DSO_R_NO_FILENAME
);
164 h
= LoadLibraryA(filename
);
166 DSOerr(DSO_F_WIN32_LOAD
, DSO_R_LOAD_FAILED
);
167 ERR_add_error_data(3, "filename(", filename
, ")");
170 p
= OPENSSL_malloc(sizeof(*p
));
172 DSOerr(DSO_F_WIN32_LOAD
, ERR_R_MALLOC_FAILURE
);
176 if (!sk_void_push(dso
->meth_data
, p
)) {
177 DSOerr(DSO_F_WIN32_LOAD
, DSO_R_STACK_ERROR
);
181 dso
->loaded_filename
= filename
;
185 OPENSSL_free(filename
);
192 static int win32_unload(DSO
*dso
)
196 DSOerr(DSO_F_WIN32_UNLOAD
, ERR_R_PASSED_NULL_PARAMETER
);
199 if (sk_void_num(dso
->meth_data
) < 1)
201 p
= sk_void_pop(dso
->meth_data
);
203 DSOerr(DSO_F_WIN32_UNLOAD
, DSO_R_NULL_HANDLE
);
206 if (!FreeLibrary(*p
)) {
207 DSOerr(DSO_F_WIN32_UNLOAD
, DSO_R_UNLOAD_FAILED
);
209 * We should push the value back onto the stack in case of a retry.
211 sk_void_push(dso
->meth_data
, p
);
220 * Using GetProcAddress for variables? TODO: Check this out in the Win32 API
221 * docs, there's probably a variant for variables.
223 static void *win32_bind_var(DSO
*dso
, const char *symname
)
231 if ((dso
== NULL
) || (symname
== NULL
)) {
232 DSOerr(DSO_F_WIN32_BIND_VAR
, ERR_R_PASSED_NULL_PARAMETER
);
235 if (sk_void_num(dso
->meth_data
) < 1) {
236 DSOerr(DSO_F_WIN32_BIND_VAR
, DSO_R_STACK_ERROR
);
239 ptr
= sk_void_value(dso
->meth_data
, sk_void_num(dso
->meth_data
) - 1);
241 DSOerr(DSO_F_WIN32_BIND_VAR
, DSO_R_NULL_HANDLE
);
244 sym
.f
= GetProcAddress(*ptr
, symname
);
246 DSOerr(DSO_F_WIN32_BIND_VAR
, DSO_R_SYM_FAILURE
);
247 ERR_add_error_data(3, "symname(", symname
, ")");
253 static DSO_FUNC_TYPE
win32_bind_func(DSO
*dso
, const char *symname
)
261 if ((dso
== NULL
) || (symname
== NULL
)) {
262 DSOerr(DSO_F_WIN32_BIND_FUNC
, ERR_R_PASSED_NULL_PARAMETER
);
265 if (sk_void_num(dso
->meth_data
) < 1) {
266 DSOerr(DSO_F_WIN32_BIND_FUNC
, DSO_R_STACK_ERROR
);
269 ptr
= sk_void_value(dso
->meth_data
, sk_void_num(dso
->meth_data
) - 1);
271 DSOerr(DSO_F_WIN32_BIND_FUNC
, DSO_R_NULL_HANDLE
);
274 sym
.f
= GetProcAddress(*ptr
, symname
);
276 DSOerr(DSO_F_WIN32_BIND_FUNC
, DSO_R_SYM_FAILURE
);
277 ERR_add_error_data(3, "symname(", symname
, ")");
280 return ((DSO_FUNC_TYPE
)sym
.f
);
296 static struct file_st
*win32_splitter(DSO
*dso
, const char *filename
,
297 int assume_last_is_dir
)
299 struct file_st
*result
= NULL
;
300 enum { IN_NODE
, IN_DEVICE
, IN_FILE
} position
;
301 const char *start
= filename
;
305 DSOerr(DSO_F_WIN32_SPLITTER
, DSO_R_NO_FILENAME
);
312 result
= OPENSSL_zalloc(sizeof(*result
));
313 if (result
== NULL
) {
314 DSOerr(DSO_F_WIN32_SPLITTER
, ERR_R_MALLOC_FAILURE
);
318 position
= IN_DEVICE
;
320 if ((filename
[0] == '\\' && filename
[1] == '\\')
321 || (filename
[0] == '/' && filename
[1] == '/')) {
325 result
->node
= start
;
332 if (position
!= IN_DEVICE
) {
333 DSOerr(DSO_F_WIN32_SPLITTER
, DSO_R_INCORRECT_FILE_SYNTAX
);
337 OPENSSL_free(result
);
340 result
->device
= start
;
341 result
->devicelen
= (int)(filename
- start
);
348 if (position
== IN_NODE
) {
349 result
->nodelen
= (int)(filename
- start
);
353 } else if (position
== IN_DEVICE
) {
357 result
->dirlen
= (int)(filename
- start
);
361 result
->dirlen
+= (int)(filename
- start
);
366 if (position
== IN_NODE
) {
367 result
->nodelen
= (int)(filename
- start
);
369 if (filename
- start
> 0) {
370 if (assume_last_is_dir
) {
371 if (position
== IN_DEVICE
) {
375 result
->dirlen
+= (int)(filename
- start
);
377 result
->file
= start
;
378 result
->filelen
= (int)(filename
- start
);
390 if (!result
->nodelen
)
392 if (!result
->devicelen
)
393 result
->device
= NULL
;
396 if (!result
->filelen
)
402 static char *win32_joiner(DSO
*dso
, const struct file_st
*file_split
)
404 int len
= 0, offset
= 0;
409 DSOerr(DSO_F_WIN32_JOINER
, ERR_R_PASSED_NULL_PARAMETER
);
412 if (file_split
->node
) {
413 len
+= 2 + file_split
->nodelen
; /* 2 for starting \\ */
414 if (file_split
->predir
|| file_split
->dir
|| file_split
->file
)
415 len
++; /* 1 for ending \ */
416 } else if (file_split
->device
) {
417 len
+= file_split
->devicelen
+ 1; /* 1 for ending : */
419 len
+= file_split
->predirlen
;
420 if (file_split
->predir
&& (file_split
->dir
|| file_split
->file
)) {
421 len
++; /* 1 for ending \ */
423 len
+= file_split
->dirlen
;
424 if (file_split
->dir
&& file_split
->file
) {
425 len
++; /* 1 for ending \ */
427 len
+= file_split
->filelen
;
430 DSOerr(DSO_F_WIN32_JOINER
, DSO_R_EMPTY_FILE_STRUCTURE
);
434 result
= OPENSSL_malloc(len
+ 1);
435 if (result
== NULL
) {
436 DSOerr(DSO_F_WIN32_JOINER
, ERR_R_MALLOC_FAILURE
);
440 if (file_split
->node
) {
441 strcpy(&result
[offset
], "\\\\");
443 strncpy(&result
[offset
], file_split
->node
, file_split
->nodelen
);
444 offset
+= file_split
->nodelen
;
445 if (file_split
->predir
|| file_split
->dir
|| file_split
->file
) {
446 result
[offset
] = '\\';
449 } else if (file_split
->device
) {
450 strncpy(&result
[offset
], file_split
->device
, file_split
->devicelen
);
451 offset
+= file_split
->devicelen
;
452 result
[offset
] = ':';
455 start
= file_split
->predir
;
456 while (file_split
->predirlen
> (start
- file_split
->predir
)) {
457 const char *end
= openssl_strnchr(start
, '/',
458 file_split
->predirlen
- (start
-
459 file_split
->predir
));
462 + file_split
->predirlen
- (start
- file_split
->predir
);
463 strncpy(&result
[offset
], start
, end
- start
);
464 offset
+= (int)(end
- start
);
465 result
[offset
] = '\\';
469 start
= file_split
->dir
;
470 while (file_split
->dirlen
> (start
- file_split
->dir
)) {
471 const char *end
= openssl_strnchr(start
, '/',
472 file_split
->dirlen
- (start
-
475 end
= start
+ file_split
->dirlen
- (start
- file_split
->dir
);
476 strncpy(&result
[offset
], start
, end
- start
);
477 offset
+= (int)(end
- start
);
478 result
[offset
] = '\\';
482 strncpy(&result
[offset
], file_split
->file
, file_split
->filelen
);
483 offset
+= file_split
->filelen
;
484 result
[offset
] = '\0';
488 static char *win32_merger(DSO
*dso
, const char *filespec1
,
489 const char *filespec2
)
492 struct file_st
*filespec1_split
= NULL
;
493 struct file_st
*filespec2_split
= NULL
;
495 if (!filespec1
&& !filespec2
) {
496 DSOerr(DSO_F_WIN32_MERGER
, ERR_R_PASSED_NULL_PARAMETER
);
500 merged
= OPENSSL_malloc(strlen(filespec1
) + 1);
501 if (merged
== NULL
) {
502 DSOerr(DSO_F_WIN32_MERGER
, ERR_R_MALLOC_FAILURE
);
505 strcpy(merged
, filespec1
);
506 } else if (!filespec1
) {
507 merged
= OPENSSL_malloc(strlen(filespec2
) + 1);
508 if (merged
== NULL
) {
509 DSOerr(DSO_F_WIN32_MERGER
, ERR_R_MALLOC_FAILURE
);
512 strcpy(merged
, filespec2
);
514 filespec1_split
= win32_splitter(dso
, filespec1
, 0);
515 if (!filespec1_split
) {
516 DSOerr(DSO_F_WIN32_MERGER
, ERR_R_MALLOC_FAILURE
);
519 filespec2_split
= win32_splitter(dso
, filespec2
, 1);
520 if (!filespec2_split
) {
521 DSOerr(DSO_F_WIN32_MERGER
, ERR_R_MALLOC_FAILURE
);
522 OPENSSL_free(filespec1_split
);
526 /* Fill in into filespec1_split */
527 if (!filespec1_split
->node
&& !filespec1_split
->device
) {
528 filespec1_split
->node
= filespec2_split
->node
;
529 filespec1_split
->nodelen
= filespec2_split
->nodelen
;
530 filespec1_split
->device
= filespec2_split
->device
;
531 filespec1_split
->devicelen
= filespec2_split
->devicelen
;
533 if (!filespec1_split
->dir
) {
534 filespec1_split
->dir
= filespec2_split
->dir
;
535 filespec1_split
->dirlen
= filespec2_split
->dirlen
;
536 } else if (filespec1_split
->dir
[0] != '\\'
537 && filespec1_split
->dir
[0] != '/') {
538 filespec1_split
->predir
= filespec2_split
->dir
;
539 filespec1_split
->predirlen
= filespec2_split
->dirlen
;
541 if (!filespec1_split
->file
) {
542 filespec1_split
->file
= filespec2_split
->file
;
543 filespec1_split
->filelen
= filespec2_split
->filelen
;
546 merged
= win32_joiner(dso
, filespec1_split
);
548 OPENSSL_free(filespec1_split
);
549 OPENSSL_free(filespec2_split
);
553 static char *win32_name_converter(DSO
*dso
, const char *filename
)
558 len
= strlen(filename
);
559 transform
= ((strstr(filename
, "/") == NULL
) &&
560 (strstr(filename
, "\\") == NULL
) &&
561 (strstr(filename
, ":") == NULL
));
563 /* We will convert this to "%s.dll" */
564 translated
= OPENSSL_malloc(len
+ 5);
566 /* We will simply duplicate filename */
567 translated
= OPENSSL_malloc(len
+ 1);
568 if (translated
== NULL
) {
569 DSOerr(DSO_F_WIN32_NAME_CONVERTER
, DSO_R_NAME_TRANSLATION_FAILED
);
573 sprintf(translated
, "%s.dll", filename
);
575 sprintf(translated
, "%s", filename
);
579 static const char *openssl_strnchr(const char *string
, int c
, size_t len
)
583 for (i
= 0, p
= string
; i
< len
&& *p
; i
++, p
++) {
590 # include <tlhelp32.h>
592 # define DLLNAME "TOOLHELP.DLL"
594 # ifdef MODULEENTRY32
595 # undef MODULEENTRY32 /* unmask the ASCII version! */
597 # define DLLNAME "KERNEL32.DLL"
600 typedef HANDLE(WINAPI
*CREATETOOLHELP32SNAPSHOT
) (DWORD
, DWORD
);
601 typedef BOOL(WINAPI
*CLOSETOOLHELP32SNAPSHOT
) (HANDLE
);
602 typedef BOOL(WINAPI
*MODULE32
) (HANDLE
, MODULEENTRY32
*);
604 static int win32_pathbyaddr(void *addr
, char *path
, int sz
)
607 HANDLE hModuleSnap
= INVALID_HANDLE_VALUE
;
609 CREATETOOLHELP32SNAPSHOT create_snap
;
610 CLOSETOOLHELP32SNAPSHOT close_snap
;
611 MODULE32 module_first
, module_next
;
615 int (*f
) (void *, char *, int);
623 dll
= LoadLibrary(TEXT(DLLNAME
));
625 DSOerr(DSO_F_WIN32_PATHBYADDR
, DSO_R_UNSUPPORTED
);
629 create_snap
= (CREATETOOLHELP32SNAPSHOT
)
630 GetProcAddress(dll
, "CreateToolhelp32Snapshot");
631 if (create_snap
== NULL
) {
633 DSOerr(DSO_F_WIN32_PATHBYADDR
, DSO_R_UNSUPPORTED
);
636 /* We take the rest for granted... */
638 close_snap
= (CLOSETOOLHELP32SNAPSHOT
)
639 GetProcAddress(dll
, "CloseToolhelp32Snapshot");
641 close_snap
= (CLOSETOOLHELP32SNAPSHOT
) CloseHandle
;
643 module_first
= (MODULE32
) GetProcAddress(dll
, "Module32First");
644 module_next
= (MODULE32
) GetProcAddress(dll
, "Module32Next");
646 hModuleSnap
= (*create_snap
) (TH32CS_SNAPMODULE
, 0);
647 if (hModuleSnap
== INVALID_HANDLE_VALUE
) {
649 DSOerr(DSO_F_WIN32_PATHBYADDR
, DSO_R_UNSUPPORTED
);
653 me32
.dwSize
= sizeof(me32
);
655 if (!(*module_first
) (hModuleSnap
, &me32
)) {
656 (*close_snap
) (hModuleSnap
);
658 DSOerr(DSO_F_WIN32_PATHBYADDR
, DSO_R_FAILURE
);
663 if ((BYTE
*) addr
>= me32
.modBaseAddr
&&
664 (BYTE
*) addr
< me32
.modBaseAddr
+ me32
.modBaseSize
) {
665 (*close_snap
) (hModuleSnap
);
668 # if _WIN32_WCE >= 101
669 return WideCharToMultiByte(CP_ACP
, 0, me32
.szExePath
, -1,
670 path
, sz
, NULL
, NULL
);
673 int i
, len
= (int)wcslen(me32
.szExePath
);
678 for (i
= 0; i
< len
; i
++)
679 path
[i
] = (char)me32
.szExePath
[i
];
686 int len
= (int)strlen(me32
.szExePath
);
691 memcpy(path
, me32
.szExePath
, len
);
697 } while ((*module_next
) (hModuleSnap
, &me32
));
699 (*close_snap
) (hModuleSnap
);
704 static void *win32_globallookup(const char *name
)
707 HANDLE hModuleSnap
= INVALID_HANDLE_VALUE
;
709 CREATETOOLHELP32SNAPSHOT create_snap
;
710 CLOSETOOLHELP32SNAPSHOT close_snap
;
711 MODULE32 module_first
, module_next
;
717 dll
= LoadLibrary(TEXT(DLLNAME
));
719 DSOerr(DSO_F_WIN32_GLOBALLOOKUP
, DSO_R_UNSUPPORTED
);
723 create_snap
= (CREATETOOLHELP32SNAPSHOT
)
724 GetProcAddress(dll
, "CreateToolhelp32Snapshot");
725 if (create_snap
== NULL
) {
727 DSOerr(DSO_F_WIN32_GLOBALLOOKUP
, DSO_R_UNSUPPORTED
);
730 /* We take the rest for granted... */
732 close_snap
= (CLOSETOOLHELP32SNAPSHOT
)
733 GetProcAddress(dll
, "CloseToolhelp32Snapshot");
735 close_snap
= (CLOSETOOLHELP32SNAPSHOT
) CloseHandle
;
737 module_first
= (MODULE32
) GetProcAddress(dll
, "Module32First");
738 module_next
= (MODULE32
) GetProcAddress(dll
, "Module32Next");
740 hModuleSnap
= (*create_snap
) (TH32CS_SNAPMODULE
, 0);
741 if (hModuleSnap
== INVALID_HANDLE_VALUE
) {
743 DSOerr(DSO_F_WIN32_GLOBALLOOKUP
, DSO_R_UNSUPPORTED
);
747 me32
.dwSize
= sizeof(me32
);
749 if (!(*module_first
) (hModuleSnap
, &me32
)) {
750 (*close_snap
) (hModuleSnap
);
756 if ((ret
.f
= GetProcAddress(me32
.hModule
, name
))) {
757 (*close_snap
) (hModuleSnap
);
761 } while ((*module_next
) (hModuleSnap
, &me32
));
763 (*close_snap
) (hModuleSnap
);
767 #endif /* DSO_WIN32 */