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-rw-r--r--src/lib/libcrypto/dso/dso_win32.c660
1 files changed, 660 insertions, 0 deletions
diff --git a/src/lib/libcrypto/dso/dso_win32.c b/src/lib/libcrypto/dso/dso_win32.c
new file mode 100644
index 0000000000..fd3dd6a7fe
--- /dev/null
+++ b/src/lib/libcrypto/dso/dso_win32.c
@@ -0,0 +1,660 @@
1/* dso_win32.c -*- mode:C; c-file-style: "eay" -*- */
2/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
3 * project 2000.
4 */
5/* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#include <stdio.h>
60#include <string.h>
61#include "cryptlib.h"
62#include <openssl/dso.h>
63
64#if !defined(DSO_WIN32)
65DSO_METHOD *DSO_METHOD_win32(void)
66 {
67 return NULL;
68 }
69#else
70
71#ifdef _WIN32_WCE
72# if _WIN32_WCE < 300
73static FARPROC GetProcAddressA(HMODULE hModule,LPCSTR lpProcName)
74 {
75 WCHAR lpProcNameW[64];
76 int i;
77
78 for (i=0;lpProcName[i] && i<64;i++)
79 lpProcNameW[i] = (WCHAR)lpProcName[i];
80 if (i==64) return NULL;
81 lpProcNameW[i] = 0;
82
83 return GetProcAddressW(hModule,lpProcNameW);
84 }
85# endif
86# undef GetProcAddress
87# define GetProcAddress GetProcAddressA
88
89static HINSTANCE LoadLibraryA(LPCSTR lpLibFileName)
90 {
91 WCHAR *fnamw;
92 size_t len_0=strlen(lpLibFileName)+1,i;
93
94#ifdef _MSC_VER
95 fnamw = (WCHAR *)_alloca (len_0*sizeof(WCHAR));
96#else
97 fnamw = (WCHAR *)alloca (len_0*sizeof(WCHAR));
98#endif
99 if (fnamw == NULL) return NULL;
100
101#if defined(_WIN32_WCE) && _WIN32_WCE>=101
102 if (!MultiByteToWideChar(CP_ACP,0,lpLibFileName,len_0,fnamw,len_0))
103#endif
104 for (i=0;i<len_0;i++) fnamw[i]=(WCHAR)lpLibFileName[i];
105
106 return LoadLibraryW(fnamw);
107 }
108#endif
109
110/* Part of the hack in "win32_load" ... */
111#define DSO_MAX_TRANSLATED_SIZE 256
112
113static int win32_load(DSO *dso);
114static int win32_unload(DSO *dso);
115static void *win32_bind_var(DSO *dso, const char *symname);
116static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname);
117#if 0
118static int win32_unbind_var(DSO *dso, char *symname, void *symptr);
119static int win32_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
120static int win32_init(DSO *dso);
121static int win32_finish(DSO *dso);
122static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg);
123#endif
124static char *win32_name_converter(DSO *dso, const char *filename);
125static char *win32_merger(DSO *dso, const char *filespec1,
126 const char *filespec2);
127
128static const char *openssl_strnchr(const char *string, int c, size_t len);
129
130static DSO_METHOD dso_meth_win32 = {
131 "OpenSSL 'win32' shared library method",
132 win32_load,
133 win32_unload,
134 win32_bind_var,
135 win32_bind_func,
136/* For now, "unbind" doesn't exist */
137#if 0
138 NULL, /* unbind_var */
139 NULL, /* unbind_func */
140#endif
141 NULL, /* ctrl */
142 win32_name_converter,
143 win32_merger,
144 NULL, /* init */
145 NULL /* finish */
146 };
147
148DSO_METHOD *DSO_METHOD_win32(void)
149 {
150 return(&dso_meth_win32);
151 }
152
153/* For this DSO_METHOD, our meth_data STACK will contain;
154 * (i) a pointer to the handle (HINSTANCE) returned from
155 * LoadLibrary(), and copied.
156 */
157
158static int win32_load(DSO *dso)
159 {
160 HINSTANCE h = NULL, *p = NULL;
161 /* See applicable comments from dso_dl.c */
162 char *filename = DSO_convert_filename(dso, NULL);
163
164 if(filename == NULL)
165 {
166 DSOerr(DSO_F_WIN32_LOAD,DSO_R_NO_FILENAME);
167 goto err;
168 }
169 h = LoadLibraryA(filename);
170 if(h == NULL)
171 {
172 DSOerr(DSO_F_WIN32_LOAD,DSO_R_LOAD_FAILED);
173 ERR_add_error_data(3, "filename(", filename, ")");
174 goto err;
175 }
176 p = (HINSTANCE *)OPENSSL_malloc(sizeof(HINSTANCE));
177 if(p == NULL)
178 {
179 DSOerr(DSO_F_WIN32_LOAD,ERR_R_MALLOC_FAILURE);
180 goto err;
181 }
182 *p = h;
183 if(!sk_push(dso->meth_data, (char *)p))
184 {
185 DSOerr(DSO_F_WIN32_LOAD,DSO_R_STACK_ERROR);
186 goto err;
187 }
188 /* Success */
189 dso->loaded_filename = filename;
190 return(1);
191err:
192 /* Cleanup !*/
193 if(filename != NULL)
194 OPENSSL_free(filename);
195 if(p != NULL)
196 OPENSSL_free(p);
197 if(h != NULL)
198 FreeLibrary(h);
199 return(0);
200 }
201
202static int win32_unload(DSO *dso)
203 {
204 HINSTANCE *p;
205 if(dso == NULL)
206 {
207 DSOerr(DSO_F_WIN32_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
208 return(0);
209 }
210 if(sk_num(dso->meth_data) < 1)
211 return(1);
212 p = (HINSTANCE *)sk_pop(dso->meth_data);
213 if(p == NULL)
214 {
215 DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_NULL_HANDLE);
216 return(0);
217 }
218 if(!FreeLibrary(*p))
219 {
220 DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_UNLOAD_FAILED);
221 /* We should push the value back onto the stack in
222 * case of a retry. */
223 sk_push(dso->meth_data, (char *)p);
224 return(0);
225 }
226 /* Cleanup */
227 OPENSSL_free(p);
228 return(1);
229 }
230
231/* Using GetProcAddress for variables? TODO: Check this out in
232 * the Win32 API docs, there's probably a variant for variables. */
233static void *win32_bind_var(DSO *dso, const char *symname)
234 {
235 HINSTANCE *ptr;
236 void *sym;
237
238 if((dso == NULL) || (symname == NULL))
239 {
240 DSOerr(DSO_F_WIN32_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
241 return(NULL);
242 }
243 if(sk_num(dso->meth_data) < 1)
244 {
245 DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_STACK_ERROR);
246 return(NULL);
247 }
248 ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
249 if(ptr == NULL)
250 {
251 DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_NULL_HANDLE);
252 return(NULL);
253 }
254 sym = GetProcAddress(*ptr, symname);
255 if(sym == NULL)
256 {
257 DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_SYM_FAILURE);
258 ERR_add_error_data(3, "symname(", symname, ")");
259 return(NULL);
260 }
261 return(sym);
262 }
263
264static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname)
265 {
266 HINSTANCE *ptr;
267 void *sym;
268
269 if((dso == NULL) || (symname == NULL))
270 {
271 DSOerr(DSO_F_WIN32_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER);
272 return(NULL);
273 }
274 if(sk_num(dso->meth_data) < 1)
275 {
276 DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_STACK_ERROR);
277 return(NULL);
278 }
279 ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
280 if(ptr == NULL)
281 {
282 DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_NULL_HANDLE);
283 return(NULL);
284 }
285 sym = GetProcAddress(*ptr, symname);
286 if(sym == NULL)
287 {
288 DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_SYM_FAILURE);
289 ERR_add_error_data(3, "symname(", symname, ")");
290 return(NULL);
291 }
292 return((DSO_FUNC_TYPE)sym);
293 }
294
295struct file_st
296 {
297 const char *node; int nodelen;
298 const char *device; int devicelen;
299 const char *predir; int predirlen;
300 const char *dir; int dirlen;
301 const char *file; int filelen;
302 };
303
304static struct file_st *win32_splitter(DSO *dso, const char *filename,
305 int assume_last_is_dir)
306 {
307 struct file_st *result = NULL;
308 enum { IN_NODE, IN_DEVICE, IN_FILE } position;
309 const char *start = filename;
310 char last;
311
312 if (!filename)
313 {
314 DSOerr(DSO_F_WIN32_SPLITTER,DSO_R_NO_FILENAME);
315 /*goto err;*/
316 return(NULL);
317 }
318
319 result = OPENSSL_malloc(sizeof(struct file_st));
320 if(result == NULL)
321 {
322 DSOerr(DSO_F_WIN32_SPLITTER,
323 ERR_R_MALLOC_FAILURE);
324 return(NULL);
325 }
326
327 memset(result, 0, sizeof(struct file_st));
328 position = IN_DEVICE;
329
330 if(filename[0] == '\\' && filename[1] == '\\'
331 || filename[0] == '/' && filename[1] == '/')
332 {
333 position = IN_NODE;
334 filename += 2;
335 start = filename;
336 result->node = start;
337 }
338
339 do
340 {
341 last = filename[0];
342 switch(last)
343 {
344 case ':':
345 if(position != IN_DEVICE)
346 {
347 DSOerr(DSO_F_WIN32_SPLITTER,
348 DSO_R_INCORRECT_FILE_SYNTAX);
349 /*goto err;*/
350 return(NULL);
351 }
352 result->device = start;
353 result->devicelen = filename - start;
354 position = IN_FILE;
355 start = ++filename;
356 result->dir = start;
357 break;
358 case '\\':
359 case '/':
360 if(position == IN_NODE)
361 {
362 result->nodelen = filename - start;
363 position = IN_FILE;
364 start = ++filename;
365 result->dir = start;
366 }
367 else if(position == IN_DEVICE)
368 {
369 position = IN_FILE;
370 filename++;
371 result->dir = start;
372 result->dirlen = filename - start;
373 start = filename;
374 }
375 else
376 {
377 filename++;
378 result->dirlen += filename - start;
379 start = filename;
380 }
381 break;
382 case '\0':
383 if(position == IN_NODE)
384 {
385 result->nodelen = filename - start;
386 }
387 else
388 {
389 if(filename - start > 0)
390 {
391 if (assume_last_is_dir)
392 {
393 if (position == IN_DEVICE)
394 {
395 result->dir = start;
396 result->dirlen = 0;
397 }
398 result->dirlen +=
399 filename - start;
400 }
401 else
402 {
403 result->file = start;
404 result->filelen =
405 filename - start;
406 }
407 }
408 }
409 break;
410 default:
411 filename++;
412 break;
413 }
414 }
415 while(last);
416
417 if(!result->nodelen) result->node = NULL;
418 if(!result->devicelen) result->device = NULL;
419 if(!result->dirlen) result->dir = NULL;
420 if(!result->filelen) result->file = NULL;
421
422 return(result);
423 }
424
425static char *win32_joiner(DSO *dso, const struct file_st *file_split)
426 {
427 int len = 0, offset = 0;
428 char *result = NULL;
429 const char *start;
430
431 if(!file_split)
432 {
433 DSOerr(DSO_F_WIN32_JOINER,
434 ERR_R_PASSED_NULL_PARAMETER);
435 return(NULL);
436 }
437 if(file_split->node)
438 {
439 len += 2 + file_split->nodelen; /* 2 for starting \\ */
440 if(file_split->predir || file_split->dir || file_split->file)
441 len++; /* 1 for ending \ */
442 }
443 else if(file_split->device)
444 {
445 len += file_split->devicelen + 1; /* 1 for ending : */
446 }
447 len += file_split->predirlen;
448 if(file_split->predir && (file_split->dir || file_split->file))
449 {
450 len++; /* 1 for ending \ */
451 }
452 len += file_split->dirlen;
453 if(file_split->dir && file_split->file)
454 {
455 len++; /* 1 for ending \ */
456 }
457 len += file_split->filelen;
458
459 if(!len)
460 {
461 DSOerr(DSO_F_WIN32_JOINER, DSO_R_EMPTY_FILE_STRUCTURE);
462 return(NULL);
463 }
464
465 result = OPENSSL_malloc(len + 1);
466 if (!result)
467 {
468 DSOerr(DSO_F_WIN32_JOINER,
469 ERR_R_MALLOC_FAILURE);
470 return(NULL);
471 }
472
473 if(file_split->node)
474 {
475 strcpy(&result[offset], "\\\\"); offset += 2;
476 strncpy(&result[offset], file_split->node,
477 file_split->nodelen); offset += file_split->nodelen;
478 if(file_split->predir || file_split->dir || file_split->file)
479 {
480 result[offset] = '\\'; offset++;
481 }
482 }
483 else if(file_split->device)
484 {
485 strncpy(&result[offset], file_split->device,
486 file_split->devicelen); offset += file_split->devicelen;
487 result[offset] = ':'; offset++;
488 }
489 start = file_split->predir;
490 while(file_split->predirlen > (start - file_split->predir))
491 {
492 const char *end = openssl_strnchr(start, '/',
493 file_split->predirlen - (start - file_split->predir));
494 if(!end)
495 end = start
496 + file_split->predirlen
497 - (start - file_split->predir);
498 strncpy(&result[offset], start,
499 end - start); offset += end - start;
500 result[offset] = '\\'; offset++;
501 start = end + 1;
502 }
503#if 0 /* Not needed, since the directory converter above already appeneded
504 a backslash */
505 if(file_split->predir && (file_split->dir || file_split->file))
506 {
507 result[offset] = '\\'; offset++;
508 }
509#endif
510 start = file_split->dir;
511 while(file_split->dirlen > (start - file_split->dir))
512 {
513 const char *end = openssl_strnchr(start, '/',
514 file_split->dirlen - (start - file_split->dir));
515 if(!end)
516 end = start
517 + file_split->dirlen
518 - (start - file_split->dir);
519 strncpy(&result[offset], start,
520 end - start); offset += end - start;
521 result[offset] = '\\'; offset++;
522 start = end + 1;
523 }
524#if 0 /* Not needed, since the directory converter above already appeneded
525 a backslash */
526 if(file_split->dir && file_split->file)
527 {
528 result[offset] = '\\'; offset++;
529 }
530#endif
531 strncpy(&result[offset], file_split->file,
532 file_split->filelen); offset += file_split->filelen;
533 result[offset] = '\0';
534 return(result);
535 }
536
537static char *win32_merger(DSO *dso, const char *filespec1, const char *filespec2)
538 {
539 char *merged = NULL;
540 struct file_st *filespec1_split = NULL;
541 struct file_st *filespec2_split = NULL;
542
543 if(!filespec1 && !filespec2)
544 {
545 DSOerr(DSO_F_WIN32_MERGER,
546 ERR_R_PASSED_NULL_PARAMETER);
547 return(NULL);
548 }
549 if (!filespec2)
550 {
551 merged = OPENSSL_malloc(strlen(filespec1) + 1);
552 if(!merged)
553 {
554 DSOerr(DSO_F_WIN32_MERGER,
555 ERR_R_MALLOC_FAILURE);
556 return(NULL);
557 }
558 strcpy(merged, filespec1);
559 }
560 else if (!filespec1)
561 {
562 merged = OPENSSL_malloc(strlen(filespec2) + 1);
563 if(!merged)
564 {
565 DSOerr(DSO_F_WIN32_MERGER,
566 ERR_R_MALLOC_FAILURE);
567 return(NULL);
568 }
569 strcpy(merged, filespec2);
570 }
571 else
572 {
573 filespec1_split = win32_splitter(dso, filespec1, 0);
574 if (!filespec1_split)
575 {
576 DSOerr(DSO_F_WIN32_MERGER,
577 ERR_R_MALLOC_FAILURE);
578 return(NULL);
579 }
580 filespec2_split = win32_splitter(dso, filespec2, 1);
581 if (!filespec2_split)
582 {
583 DSOerr(DSO_F_WIN32_MERGER,
584 ERR_R_MALLOC_FAILURE);
585 OPENSSL_free(filespec1_split);
586 return(NULL);
587 }
588
589 /* Fill in into filespec1_split */
590 if (!filespec1_split->node && !filespec1_split->device)
591 {
592 filespec1_split->node = filespec2_split->node;
593 filespec1_split->nodelen = filespec2_split->nodelen;
594 filespec1_split->device = filespec2_split->device;
595 filespec1_split->devicelen = filespec2_split->devicelen;
596 }
597 if (!filespec1_split->dir)
598 {
599 filespec1_split->dir = filespec2_split->dir;
600 filespec1_split->dirlen = filespec2_split->dirlen;
601 }
602 else if (filespec1_split->dir[0] != '\\'
603 && filespec1_split->dir[0] != '/')
604 {
605 filespec1_split->predir = filespec2_split->dir;
606 filespec1_split->predirlen = filespec2_split->dirlen;
607 }
608 if (!filespec1_split->file)
609 {
610 filespec1_split->file = filespec2_split->file;
611 filespec1_split->filelen = filespec2_split->filelen;
612 }
613
614 merged = win32_joiner(dso, filespec1_split);
615 }
616 return(merged);
617 }
618
619static char *win32_name_converter(DSO *dso, const char *filename)
620 {
621 char *translated;
622 int len, transform;
623
624 len = strlen(filename);
625 transform = ((strstr(filename, "/") == NULL) &&
626 (strstr(filename, "\\") == NULL) &&
627 (strstr(filename, ":") == NULL));
628 if(transform)
629 /* We will convert this to "%s.dll" */
630 translated = OPENSSL_malloc(len + 5);
631 else
632 /* We will simply duplicate filename */
633 translated = OPENSSL_malloc(len + 1);
634 if(translated == NULL)
635 {
636 DSOerr(DSO_F_WIN32_NAME_CONVERTER,
637 DSO_R_NAME_TRANSLATION_FAILED);
638 return(NULL);
639 }
640 if(transform)
641 sprintf(translated, "%s.dll", filename);
642 else
643 sprintf(translated, "%s", filename);
644 return(translated);
645 }
646
647static const char *openssl_strnchr(const char *string, int c, size_t len)
648 {
649 size_t i;
650 const char *p;
651 for (i = 0, p = string; i < len && *p; i++, p++)
652 {
653 if (*p == c)
654 return p;
655 }
656 return NULL;
657 }
658
659
660#endif /* OPENSSL_SYS_WIN32 */
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