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 #if defined(DSO_WIN32)
65 static FARPROC GetProcAddressA(HMODULE hModule, LPCSTR lpProcName)
67 WCHAR lpProcNameW[64];
70 for (i = 0; lpProcName[i] && i < 64; i++)
71 lpProcNameW[i] = (WCHAR)lpProcName[i];
76 return GetProcAddressW(hModule, lpProcNameW);
79 # undef GetProcAddress
80 # define GetProcAddress GetProcAddressA
82 static HINSTANCE LoadLibraryA(LPCSTR lpLibFileName)
85 size_t len_0 = strlen(lpLibFileName) + 1, i;
88 fnamw = (WCHAR *)_alloca(len_0 * sizeof(WCHAR));
90 fnamw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
93 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
96 # if defined(_WIN32_WCE) && _WIN32_WCE>=101
97 if (!MultiByteToWideChar(CP_ACP, 0, lpLibFileName, len_0, fnamw, len_0))
99 for (i = 0; i < len_0; i++)
100 fnamw[i] = (WCHAR)lpLibFileName[i];
102 return LoadLibraryW(fnamw);
106 /* Part of the hack in "win32_load" ... */
107 # define DSO_MAX_TRANSLATED_SIZE 256
109 static int win32_load(DSO *dso);
110 static int win32_unload(DSO *dso);
111 static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname);
112 static char *win32_name_converter(DSO *dso, const char *filename);
113 static char *win32_merger(DSO *dso, const char *filespec1,
114 const char *filespec2);
115 static void *win32_globallookup(const char *name);
117 static const char *openssl_strnchr(const char *string, int c, size_t len);
119 static DSO_METHOD dso_meth_win32 = {
120 "OpenSSL 'win32' shared library method",
125 win32_name_converter,
132 DSO_METHOD *DSO_METHOD_openssl(void)
134 return &dso_meth_win32;
138 * For this DSO_METHOD, our meth_data STACK will contain; (i) a pointer to
139 * the handle (HINSTANCE) returned from LoadLibrary(), and copied.
142 static int win32_load(DSO *dso)
144 HINSTANCE h = NULL, *p = NULL;
145 /* See applicable comments from dso_dl.c */
146 char *filename = DSO_convert_filename(dso, NULL);
148 if (filename == NULL) {
149 DSOerr(DSO_F_WIN32_LOAD, DSO_R_NO_FILENAME);
152 h = LoadLibraryA(filename);
154 DSOerr(DSO_F_WIN32_LOAD, DSO_R_LOAD_FAILED);
155 ERR_add_error_data(3, "filename(", filename, ")");
158 p = OPENSSL_malloc(sizeof(*p));
160 DSOerr(DSO_F_WIN32_LOAD, ERR_R_MALLOC_FAILURE);
164 if (!sk_void_push(dso->meth_data, p)) {
165 DSOerr(DSO_F_WIN32_LOAD, DSO_R_STACK_ERROR);
169 dso->loaded_filename = filename;
173 OPENSSL_free(filename);
180 static int win32_unload(DSO *dso)
184 DSOerr(DSO_F_WIN32_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
187 if (sk_void_num(dso->meth_data) < 1)
189 p = sk_void_pop(dso->meth_data);
191 DSOerr(DSO_F_WIN32_UNLOAD, DSO_R_NULL_HANDLE);
194 if (!FreeLibrary(*p)) {
195 DSOerr(DSO_F_WIN32_UNLOAD, DSO_R_UNLOAD_FAILED);
197 * We should push the value back onto the stack in case of a retry.
199 sk_void_push(dso->meth_data, p);
207 static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname)
215 if ((dso == NULL) || (symname == NULL)) {
216 DSOerr(DSO_F_WIN32_BIND_FUNC, ERR_R_PASSED_NULL_PARAMETER);
219 if (sk_void_num(dso->meth_data) < 1) {
220 DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_STACK_ERROR);
223 ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1);
225 DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_NULL_HANDLE);
228 sym.f = GetProcAddress(*ptr, symname);
230 DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_SYM_FAILURE);
231 ERR_add_error_data(3, "symname(", symname, ")");
234 return ((DSO_FUNC_TYPE)sym.f);
250 static struct file_st *win32_splitter(DSO *dso, const char *filename,
251 int assume_last_is_dir)
253 struct file_st *result = NULL;
254 enum { IN_NODE, IN_DEVICE, IN_FILE } position;
255 const char *start = filename;
259 DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_NO_FILENAME);
266 result = OPENSSL_zalloc(sizeof(*result));
267 if (result == NULL) {
268 DSOerr(DSO_F_WIN32_SPLITTER, ERR_R_MALLOC_FAILURE);
272 position = IN_DEVICE;
274 if ((filename[0] == '\\' && filename[1] == '\\')
275 || (filename[0] == '/' && filename[1] == '/')) {
279 result->node = start;
286 if (position != IN_DEVICE) {
287 DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_INCORRECT_FILE_SYNTAX);
291 OPENSSL_free(result);
294 result->device = start;
295 result->devicelen = (int)(filename - start);
302 if (position == IN_NODE) {
303 result->nodelen = (int)(filename - start);
307 } else if (position == IN_DEVICE) {
311 result->dirlen = (int)(filename - start);
315 result->dirlen += (int)(filename - start);
320 if (position == IN_NODE) {
321 result->nodelen = (int)(filename - start);
323 if (filename - start > 0) {
324 if (assume_last_is_dir) {
325 if (position == IN_DEVICE) {
329 result->dirlen += (int)(filename - start);
331 result->file = start;
332 result->filelen = (int)(filename - start);
344 if (!result->nodelen)
346 if (!result->devicelen)
347 result->device = NULL;
350 if (!result->filelen)
356 static char *win32_joiner(DSO *dso, const struct file_st *file_split)
358 int len = 0, offset = 0;
363 DSOerr(DSO_F_WIN32_JOINER, ERR_R_PASSED_NULL_PARAMETER);
366 if (file_split->node) {
367 len += 2 + file_split->nodelen; /* 2 for starting \\ */
368 if (file_split->predir || file_split->dir || file_split->file)
369 len++; /* 1 for ending \ */
370 } else if (file_split->device) {
371 len += file_split->devicelen + 1; /* 1 for ending : */
373 len += file_split->predirlen;
374 if (file_split->predir && (file_split->dir || file_split->file)) {
375 len++; /* 1 for ending \ */
377 len += file_split->dirlen;
378 if (file_split->dir && file_split->file) {
379 len++; /* 1 for ending \ */
381 len += file_split->filelen;
384 DSOerr(DSO_F_WIN32_JOINER, DSO_R_EMPTY_FILE_STRUCTURE);
388 result = OPENSSL_malloc(len + 1);
389 if (result == NULL) {
390 DSOerr(DSO_F_WIN32_JOINER, ERR_R_MALLOC_FAILURE);
394 if (file_split->node) {
395 strcpy(&result[offset], "\\\\");
397 strncpy(&result[offset], file_split->node, file_split->nodelen);
398 offset += file_split->nodelen;
399 if (file_split->predir || file_split->dir || file_split->file) {
400 result[offset] = '\\';
403 } else if (file_split->device) {
404 strncpy(&result[offset], file_split->device, file_split->devicelen);
405 offset += file_split->devicelen;
406 result[offset] = ':';
409 start = file_split->predir;
410 while (file_split->predirlen > (start - file_split->predir)) {
411 const char *end = openssl_strnchr(start, '/',
412 file_split->predirlen - (start -
413 file_split->predir));
416 + file_split->predirlen - (start - file_split->predir);
417 strncpy(&result[offset], start, end - start);
418 offset += (int)(end - start);
419 result[offset] = '\\';
423 start = file_split->dir;
424 while (file_split->dirlen > (start - file_split->dir)) {
425 const char *end = openssl_strnchr(start, '/',
426 file_split->dirlen - (start -
429 end = start + file_split->dirlen - (start - file_split->dir);
430 strncpy(&result[offset], start, end - start);
431 offset += (int)(end - start);
432 result[offset] = '\\';
436 strncpy(&result[offset], file_split->file, file_split->filelen);
437 offset += file_split->filelen;
438 result[offset] = '\0';
442 static char *win32_merger(DSO *dso, const char *filespec1,
443 const char *filespec2)
446 struct file_st *filespec1_split = NULL;
447 struct file_st *filespec2_split = NULL;
449 if (!filespec1 && !filespec2) {
450 DSOerr(DSO_F_WIN32_MERGER, ERR_R_PASSED_NULL_PARAMETER);
454 merged = OPENSSL_malloc(strlen(filespec1) + 1);
455 if (merged == NULL) {
456 DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
459 strcpy(merged, filespec1);
460 } else if (!filespec1) {
461 merged = OPENSSL_malloc(strlen(filespec2) + 1);
462 if (merged == NULL) {
463 DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
466 strcpy(merged, filespec2);
468 filespec1_split = win32_splitter(dso, filespec1, 0);
469 if (!filespec1_split) {
470 DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
473 filespec2_split = win32_splitter(dso, filespec2, 1);
474 if (!filespec2_split) {
475 DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
476 OPENSSL_free(filespec1_split);
480 /* Fill in into filespec1_split */
481 if (!filespec1_split->node && !filespec1_split->device) {
482 filespec1_split->node = filespec2_split->node;
483 filespec1_split->nodelen = filespec2_split->nodelen;
484 filespec1_split->device = filespec2_split->device;
485 filespec1_split->devicelen = filespec2_split->devicelen;
487 if (!filespec1_split->dir) {
488 filespec1_split->dir = filespec2_split->dir;
489 filespec1_split->dirlen = filespec2_split->dirlen;
490 } else if (filespec1_split->dir[0] != '\\'
491 && filespec1_split->dir[0] != '/') {
492 filespec1_split->predir = filespec2_split->dir;
493 filespec1_split->predirlen = filespec2_split->dirlen;
495 if (!filespec1_split->file) {
496 filespec1_split->file = filespec2_split->file;
497 filespec1_split->filelen = filespec2_split->filelen;
500 merged = win32_joiner(dso, filespec1_split);
502 OPENSSL_free(filespec1_split);
503 OPENSSL_free(filespec2_split);
507 static char *win32_name_converter(DSO *dso, const char *filename)
512 len = strlen(filename);
513 transform = ((strstr(filename, "/") == NULL) &&
514 (strstr(filename, "\\") == NULL) &&
515 (strstr(filename, ":") == NULL));
517 /* We will convert this to "%s.dll" */
518 translated = OPENSSL_malloc(len + 5);
520 /* We will simply duplicate filename */
521 translated = OPENSSL_malloc(len + 1);
522 if (translated == NULL) {
523 DSOerr(DSO_F_WIN32_NAME_CONVERTER, DSO_R_NAME_TRANSLATION_FAILED);
527 sprintf(translated, "%s.dll", filename);
529 sprintf(translated, "%s", filename);
533 static const char *openssl_strnchr(const char *string, int c, size_t len)
537 for (i = 0, p = string; i < len && *p; i++, p++) {
544 # include <tlhelp32.h>
546 # define DLLNAME "TOOLHELP.DLL"
548 # ifdef MODULEENTRY32
549 # undef MODULEENTRY32 /* unmask the ASCII version! */
551 # define DLLNAME "KERNEL32.DLL"
554 typedef HANDLE(WINAPI *CREATETOOLHELP32SNAPSHOT) (DWORD, DWORD);
555 typedef BOOL(WINAPI *CLOSETOOLHELP32SNAPSHOT) (HANDLE);
556 typedef BOOL(WINAPI *MODULE32) (HANDLE, MODULEENTRY32 *);
558 static void *win32_globallookup(const char *name)
561 HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
563 CREATETOOLHELP32SNAPSHOT create_snap;
564 CLOSETOOLHELP32SNAPSHOT close_snap;
565 MODULE32 module_first, module_next;
571 dll = LoadLibrary(TEXT(DLLNAME));
573 DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
577 create_snap = (CREATETOOLHELP32SNAPSHOT)
578 GetProcAddress(dll, "CreateToolhelp32Snapshot");
579 if (create_snap == NULL) {
581 DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
584 /* We take the rest for granted... */
586 close_snap = (CLOSETOOLHELP32SNAPSHOT)
587 GetProcAddress(dll, "CloseToolhelp32Snapshot");
589 close_snap = (CLOSETOOLHELP32SNAPSHOT) CloseHandle;
591 module_first = (MODULE32) GetProcAddress(dll, "Module32First");
592 module_next = (MODULE32) GetProcAddress(dll, "Module32Next");
594 hModuleSnap = (*create_snap) (TH32CS_SNAPMODULE, 0);
595 if (hModuleSnap == INVALID_HANDLE_VALUE) {
597 DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
601 me32.dwSize = sizeof(me32);
603 if (!(*module_first) (hModuleSnap, &me32)) {
604 (*close_snap) (hModuleSnap);
610 if ((ret.f = GetProcAddress(me32.hModule, name))) {
611 (*close_snap) (hModuleSnap);
615 } while ((*module_next) (hModuleSnap, &me32));
617 (*close_snap) (hModuleSnap);
621 #endif /* DSO_WIN32 */