Kinson Chik | a8fa74c | 2011-07-29 11:33:41 -0700 | [diff] [blame^] | 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) |
| 65 | DSO_METHOD *DSO_METHOD_win32(void) |
| 66 | { |
| 67 | return NULL; |
| 68 | } |
| 69 | #else |
| 70 | |
| 71 | #ifdef _WIN32_WCE |
| 72 | # if _WIN32_WCE < 300 |
| 73 | static 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 | |
| 89 | static 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) |
| 100 | { |
| 101 | SetLastError(ERROR_NOT_ENOUGH_MEMORY); |
| 102 | return NULL; |
| 103 | } |
| 104 | |
| 105 | #if defined(_WIN32_WCE) && _WIN32_WCE>=101 |
| 106 | if (!MultiByteToWideChar(CP_ACP,0,lpLibFileName,len_0,fnamw,len_0)) |
| 107 | #endif |
| 108 | for (i=0;i<len_0;i++) fnamw[i]=(WCHAR)lpLibFileName[i]; |
| 109 | |
| 110 | return LoadLibraryW(fnamw); |
| 111 | } |
| 112 | #endif |
| 113 | |
| 114 | /* Part of the hack in "win32_load" ... */ |
| 115 | #define DSO_MAX_TRANSLATED_SIZE 256 |
| 116 | |
| 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 | #if 0 |
| 122 | static int win32_unbind_var(DSO *dso, char *symname, void *symptr); |
| 123 | static int win32_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr); |
| 124 | static int win32_init(DSO *dso); |
| 125 | static int win32_finish(DSO *dso); |
| 126 | static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg); |
| 127 | #endif |
| 128 | static char *win32_name_converter(DSO *dso, const char *filename); |
| 129 | static char *win32_merger(DSO *dso, const char *filespec1, |
| 130 | const char *filespec2); |
| 131 | static int win32_pathbyaddr(void *addr,char *path,int sz); |
| 132 | static void *win32_globallookup(const char *name); |
| 133 | |
| 134 | static const char *openssl_strnchr(const char *string, int c, size_t len); |
| 135 | |
| 136 | static DSO_METHOD dso_meth_win32 = { |
| 137 | "OpenSSL 'win32' shared library method", |
| 138 | win32_load, |
| 139 | win32_unload, |
| 140 | win32_bind_var, |
| 141 | win32_bind_func, |
| 142 | /* For now, "unbind" doesn't exist */ |
| 143 | #if 0 |
| 144 | NULL, /* unbind_var */ |
| 145 | NULL, /* unbind_func */ |
| 146 | #endif |
| 147 | NULL, /* ctrl */ |
| 148 | win32_name_converter, |
| 149 | win32_merger, |
| 150 | NULL, /* init */ |
| 151 | NULL, /* finish */ |
| 152 | win32_pathbyaddr, |
| 153 | win32_globallookup |
| 154 | }; |
| 155 | |
| 156 | DSO_METHOD *DSO_METHOD_win32(void) |
| 157 | { |
| 158 | return(&dso_meth_win32); |
| 159 | } |
| 160 | |
| 161 | /* For this DSO_METHOD, our meth_data STACK will contain; |
| 162 | * (i) a pointer to the handle (HINSTANCE) returned from |
| 163 | * LoadLibrary(), and copied. |
| 164 | */ |
| 165 | |
| 166 | static int win32_load(DSO *dso) |
| 167 | { |
| 168 | HINSTANCE h = NULL, *p = NULL; |
| 169 | /* See applicable comments from dso_dl.c */ |
| 170 | char *filename = DSO_convert_filename(dso, NULL); |
| 171 | |
| 172 | if(filename == NULL) |
| 173 | { |
| 174 | DSOerr(DSO_F_WIN32_LOAD,DSO_R_NO_FILENAME); |
| 175 | goto err; |
| 176 | } |
| 177 | h = LoadLibraryA(filename); |
| 178 | if(h == NULL) |
| 179 | { |
| 180 | DSOerr(DSO_F_WIN32_LOAD,DSO_R_LOAD_FAILED); |
| 181 | ERR_add_error_data(3, "filename(", filename, ")"); |
| 182 | goto err; |
| 183 | } |
| 184 | p = (HINSTANCE *)OPENSSL_malloc(sizeof(HINSTANCE)); |
| 185 | if(p == NULL) |
| 186 | { |
| 187 | DSOerr(DSO_F_WIN32_LOAD,ERR_R_MALLOC_FAILURE); |
| 188 | goto err; |
| 189 | } |
| 190 | *p = h; |
| 191 | if(!sk_void_push(dso->meth_data, p)) |
| 192 | { |
| 193 | DSOerr(DSO_F_WIN32_LOAD,DSO_R_STACK_ERROR); |
| 194 | goto err; |
| 195 | } |
| 196 | /* Success */ |
| 197 | dso->loaded_filename = filename; |
| 198 | return(1); |
| 199 | err: |
| 200 | /* Cleanup !*/ |
| 201 | if(filename != NULL) |
| 202 | OPENSSL_free(filename); |
| 203 | if(p != NULL) |
| 204 | OPENSSL_free(p); |
| 205 | if(h != NULL) |
| 206 | FreeLibrary(h); |
| 207 | return(0); |
| 208 | } |
| 209 | |
| 210 | static int win32_unload(DSO *dso) |
| 211 | { |
| 212 | HINSTANCE *p; |
| 213 | if(dso == NULL) |
| 214 | { |
| 215 | DSOerr(DSO_F_WIN32_UNLOAD,ERR_R_PASSED_NULL_PARAMETER); |
| 216 | return(0); |
| 217 | } |
| 218 | if(sk_void_num(dso->meth_data) < 1) |
| 219 | return(1); |
| 220 | p = sk_void_pop(dso->meth_data); |
| 221 | if(p == NULL) |
| 222 | { |
| 223 | DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_NULL_HANDLE); |
| 224 | return(0); |
| 225 | } |
| 226 | if(!FreeLibrary(*p)) |
| 227 | { |
| 228 | DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_UNLOAD_FAILED); |
| 229 | /* We should push the value back onto the stack in |
| 230 | * case of a retry. */ |
| 231 | sk_void_push(dso->meth_data, p); |
| 232 | return(0); |
| 233 | } |
| 234 | /* Cleanup */ |
| 235 | OPENSSL_free(p); |
| 236 | return(1); |
| 237 | } |
| 238 | |
| 239 | /* Using GetProcAddress for variables? TODO: Check this out in |
| 240 | * the Win32 API docs, there's probably a variant for variables. */ |
| 241 | static void *win32_bind_var(DSO *dso, const char *symname) |
| 242 | { |
| 243 | HINSTANCE *ptr; |
| 244 | void *sym; |
| 245 | |
| 246 | if((dso == NULL) || (symname == NULL)) |
| 247 | { |
| 248 | DSOerr(DSO_F_WIN32_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER); |
| 249 | return(NULL); |
| 250 | } |
| 251 | if(sk_void_num(dso->meth_data) < 1) |
| 252 | { |
| 253 | DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_STACK_ERROR); |
| 254 | return(NULL); |
| 255 | } |
| 256 | ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1); |
| 257 | if(ptr == NULL) |
| 258 | { |
| 259 | DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_NULL_HANDLE); |
| 260 | return(NULL); |
| 261 | } |
| 262 | sym = GetProcAddress(*ptr, symname); |
| 263 | if(sym == NULL) |
| 264 | { |
| 265 | DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_SYM_FAILURE); |
| 266 | ERR_add_error_data(3, "symname(", symname, ")"); |
| 267 | return(NULL); |
| 268 | } |
| 269 | return(sym); |
| 270 | } |
| 271 | |
| 272 | static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname) |
| 273 | { |
| 274 | HINSTANCE *ptr; |
| 275 | void *sym; |
| 276 | |
| 277 | if((dso == NULL) || (symname == NULL)) |
| 278 | { |
| 279 | DSOerr(DSO_F_WIN32_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER); |
| 280 | return(NULL); |
| 281 | } |
| 282 | if(sk_void_num(dso->meth_data) < 1) |
| 283 | { |
| 284 | DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_STACK_ERROR); |
| 285 | return(NULL); |
| 286 | } |
| 287 | ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1); |
| 288 | if(ptr == NULL) |
| 289 | { |
| 290 | DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_NULL_HANDLE); |
| 291 | return(NULL); |
| 292 | } |
| 293 | sym = GetProcAddress(*ptr, symname); |
| 294 | if(sym == NULL) |
| 295 | { |
| 296 | DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_SYM_FAILURE); |
| 297 | ERR_add_error_data(3, "symname(", symname, ")"); |
| 298 | return(NULL); |
| 299 | } |
| 300 | return((DSO_FUNC_TYPE)sym); |
| 301 | } |
| 302 | |
| 303 | struct file_st |
| 304 | { |
| 305 | const char *node; int nodelen; |
| 306 | const char *device; int devicelen; |
| 307 | const char *predir; int predirlen; |
| 308 | const char *dir; int dirlen; |
| 309 | const char *file; int filelen; |
| 310 | }; |
| 311 | |
| 312 | static struct file_st *win32_splitter(DSO *dso, const char *filename, |
| 313 | int assume_last_is_dir) |
| 314 | { |
| 315 | struct file_st *result = NULL; |
| 316 | enum { IN_NODE, IN_DEVICE, IN_FILE } position; |
| 317 | const char *start = filename; |
| 318 | char last; |
| 319 | |
| 320 | if (!filename) |
| 321 | { |
| 322 | DSOerr(DSO_F_WIN32_SPLITTER,DSO_R_NO_FILENAME); |
| 323 | /*goto err;*/ |
| 324 | return(NULL); |
| 325 | } |
| 326 | |
| 327 | result = OPENSSL_malloc(sizeof(struct file_st)); |
| 328 | if(result == NULL) |
| 329 | { |
| 330 | DSOerr(DSO_F_WIN32_SPLITTER, |
| 331 | ERR_R_MALLOC_FAILURE); |
| 332 | return(NULL); |
| 333 | } |
| 334 | |
| 335 | memset(result, 0, sizeof(struct file_st)); |
| 336 | position = IN_DEVICE; |
| 337 | |
| 338 | if((filename[0] == '\\' && filename[1] == '\\') |
| 339 | || (filename[0] == '/' && filename[1] == '/')) |
| 340 | { |
| 341 | position = IN_NODE; |
| 342 | filename += 2; |
| 343 | start = filename; |
| 344 | result->node = start; |
| 345 | } |
| 346 | |
| 347 | do |
| 348 | { |
| 349 | last = filename[0]; |
| 350 | switch(last) |
| 351 | { |
| 352 | case ':': |
| 353 | if(position != IN_DEVICE) |
| 354 | { |
| 355 | DSOerr(DSO_F_WIN32_SPLITTER, |
| 356 | DSO_R_INCORRECT_FILE_SYNTAX); |
| 357 | /*goto err;*/ |
| 358 | OPENSSL_free(result); |
| 359 | return(NULL); |
| 360 | } |
| 361 | result->device = start; |
| 362 | result->devicelen = (int)(filename - start); |
| 363 | position = IN_FILE; |
| 364 | start = ++filename; |
| 365 | result->dir = start; |
| 366 | break; |
| 367 | case '\\': |
| 368 | case '/': |
| 369 | if(position == IN_NODE) |
| 370 | { |
| 371 | result->nodelen = (int)(filename - start); |
| 372 | position = IN_FILE; |
| 373 | start = ++filename; |
| 374 | result->dir = start; |
| 375 | } |
| 376 | else if(position == IN_DEVICE) |
| 377 | { |
| 378 | position = IN_FILE; |
| 379 | filename++; |
| 380 | result->dir = start; |
| 381 | result->dirlen = (int)(filename - start); |
| 382 | start = filename; |
| 383 | } |
| 384 | else |
| 385 | { |
| 386 | filename++; |
| 387 | result->dirlen += (int)(filename - start); |
| 388 | start = filename; |
| 389 | } |
| 390 | break; |
| 391 | case '\0': |
| 392 | if(position == IN_NODE) |
| 393 | { |
| 394 | result->nodelen = (int)(filename - start); |
| 395 | } |
| 396 | else |
| 397 | { |
| 398 | if(filename - start > 0) |
| 399 | { |
| 400 | if (assume_last_is_dir) |
| 401 | { |
| 402 | if (position == IN_DEVICE) |
| 403 | { |
| 404 | result->dir = start; |
| 405 | result->dirlen = 0; |
| 406 | } |
| 407 | result->dirlen += |
| 408 | (int)(filename - start); |
| 409 | } |
| 410 | else |
| 411 | { |
| 412 | result->file = start; |
| 413 | result->filelen = |
| 414 | (int)(filename - start); |
| 415 | } |
| 416 | } |
| 417 | } |
| 418 | break; |
| 419 | default: |
| 420 | filename++; |
| 421 | break; |
| 422 | } |
| 423 | } |
| 424 | while(last); |
| 425 | |
| 426 | if(!result->nodelen) result->node = NULL; |
| 427 | if(!result->devicelen) result->device = NULL; |
| 428 | if(!result->dirlen) result->dir = NULL; |
| 429 | if(!result->filelen) result->file = NULL; |
| 430 | |
| 431 | return(result); |
| 432 | } |
| 433 | |
| 434 | static char *win32_joiner(DSO *dso, const struct file_st *file_split) |
| 435 | { |
| 436 | int len = 0, offset = 0; |
| 437 | char *result = NULL; |
| 438 | const char *start; |
| 439 | |
| 440 | if(!file_split) |
| 441 | { |
| 442 | DSOerr(DSO_F_WIN32_JOINER, |
| 443 | ERR_R_PASSED_NULL_PARAMETER); |
| 444 | return(NULL); |
| 445 | } |
| 446 | if(file_split->node) |
| 447 | { |
| 448 | len += 2 + file_split->nodelen; /* 2 for starting \\ */ |
| 449 | if(file_split->predir || file_split->dir || file_split->file) |
| 450 | len++; /* 1 for ending \ */ |
| 451 | } |
| 452 | else if(file_split->device) |
| 453 | { |
| 454 | len += file_split->devicelen + 1; /* 1 for ending : */ |
| 455 | } |
| 456 | len += file_split->predirlen; |
| 457 | if(file_split->predir && (file_split->dir || file_split->file)) |
| 458 | { |
| 459 | len++; /* 1 for ending \ */ |
| 460 | } |
| 461 | len += file_split->dirlen; |
| 462 | if(file_split->dir && file_split->file) |
| 463 | { |
| 464 | len++; /* 1 for ending \ */ |
| 465 | } |
| 466 | len += file_split->filelen; |
| 467 | |
| 468 | if(!len) |
| 469 | { |
| 470 | DSOerr(DSO_F_WIN32_JOINER, DSO_R_EMPTY_FILE_STRUCTURE); |
| 471 | return(NULL); |
| 472 | } |
| 473 | |
| 474 | result = OPENSSL_malloc(len + 1); |
| 475 | if (!result) |
| 476 | { |
| 477 | DSOerr(DSO_F_WIN32_JOINER, |
| 478 | ERR_R_MALLOC_FAILURE); |
| 479 | return(NULL); |
| 480 | } |
| 481 | |
| 482 | if(file_split->node) |
| 483 | { |
| 484 | strcpy(&result[offset], "\\\\"); offset += 2; |
| 485 | strncpy(&result[offset], file_split->node, |
| 486 | file_split->nodelen); offset += file_split->nodelen; |
| 487 | if(file_split->predir || file_split->dir || file_split->file) |
| 488 | { |
| 489 | result[offset] = '\\'; offset++; |
| 490 | } |
| 491 | } |
| 492 | else if(file_split->device) |
| 493 | { |
| 494 | strncpy(&result[offset], file_split->device, |
| 495 | file_split->devicelen); offset += file_split->devicelen; |
| 496 | result[offset] = ':'; offset++; |
| 497 | } |
| 498 | start = file_split->predir; |
| 499 | while(file_split->predirlen > (start - file_split->predir)) |
| 500 | { |
| 501 | const char *end = openssl_strnchr(start, '/', |
| 502 | file_split->predirlen - (start - file_split->predir)); |
| 503 | if(!end) |
| 504 | end = start |
| 505 | + file_split->predirlen |
| 506 | - (start - file_split->predir); |
| 507 | strncpy(&result[offset], start, |
| 508 | end - start); offset += (int)(end - start); |
| 509 | result[offset] = '\\'; offset++; |
| 510 | start = end + 1; |
| 511 | } |
| 512 | #if 0 /* Not needed, since the directory converter above already appeneded |
| 513 | a backslash */ |
| 514 | if(file_split->predir && (file_split->dir || file_split->file)) |
| 515 | { |
| 516 | result[offset] = '\\'; offset++; |
| 517 | } |
| 518 | #endif |
| 519 | start = file_split->dir; |
| 520 | while(file_split->dirlen > (start - file_split->dir)) |
| 521 | { |
| 522 | const char *end = openssl_strnchr(start, '/', |
| 523 | file_split->dirlen - (start - file_split->dir)); |
| 524 | if(!end) |
| 525 | end = start |
| 526 | + file_split->dirlen |
| 527 | - (start - file_split->dir); |
| 528 | strncpy(&result[offset], start, |
| 529 | end - start); offset += (int)(end - start); |
| 530 | result[offset] = '\\'; offset++; |
| 531 | start = end + 1; |
| 532 | } |
| 533 | #if 0 /* Not needed, since the directory converter above already appeneded |
| 534 | a backslash */ |
| 535 | if(file_split->dir && file_split->file) |
| 536 | { |
| 537 | result[offset] = '\\'; offset++; |
| 538 | } |
| 539 | #endif |
| 540 | strncpy(&result[offset], file_split->file, |
| 541 | file_split->filelen); offset += file_split->filelen; |
| 542 | result[offset] = '\0'; |
| 543 | return(result); |
| 544 | } |
| 545 | |
| 546 | static char *win32_merger(DSO *dso, const char *filespec1, const char *filespec2) |
| 547 | { |
| 548 | char *merged = NULL; |
| 549 | struct file_st *filespec1_split = NULL; |
| 550 | struct file_st *filespec2_split = NULL; |
| 551 | |
| 552 | if(!filespec1 && !filespec2) |
| 553 | { |
| 554 | DSOerr(DSO_F_WIN32_MERGER, |
| 555 | ERR_R_PASSED_NULL_PARAMETER); |
| 556 | return(NULL); |
| 557 | } |
| 558 | if (!filespec2) |
| 559 | { |
| 560 | merged = OPENSSL_malloc(strlen(filespec1) + 1); |
| 561 | if(!merged) |
| 562 | { |
| 563 | DSOerr(DSO_F_WIN32_MERGER, |
| 564 | ERR_R_MALLOC_FAILURE); |
| 565 | return(NULL); |
| 566 | } |
| 567 | strcpy(merged, filespec1); |
| 568 | } |
| 569 | else if (!filespec1) |
| 570 | { |
| 571 | merged = OPENSSL_malloc(strlen(filespec2) + 1); |
| 572 | if(!merged) |
| 573 | { |
| 574 | DSOerr(DSO_F_WIN32_MERGER, |
| 575 | ERR_R_MALLOC_FAILURE); |
| 576 | return(NULL); |
| 577 | } |
| 578 | strcpy(merged, filespec2); |
| 579 | } |
| 580 | else |
| 581 | { |
| 582 | filespec1_split = win32_splitter(dso, filespec1, 0); |
| 583 | if (!filespec1_split) |
| 584 | { |
| 585 | DSOerr(DSO_F_WIN32_MERGER, |
| 586 | ERR_R_MALLOC_FAILURE); |
| 587 | return(NULL); |
| 588 | } |
| 589 | filespec2_split = win32_splitter(dso, filespec2, 1); |
| 590 | if (!filespec2_split) |
| 591 | { |
| 592 | DSOerr(DSO_F_WIN32_MERGER, |
| 593 | ERR_R_MALLOC_FAILURE); |
| 594 | OPENSSL_free(filespec1_split); |
| 595 | return(NULL); |
| 596 | } |
| 597 | |
| 598 | /* Fill in into filespec1_split */ |
| 599 | if (!filespec1_split->node && !filespec1_split->device) |
| 600 | { |
| 601 | filespec1_split->node = filespec2_split->node; |
| 602 | filespec1_split->nodelen = filespec2_split->nodelen; |
| 603 | filespec1_split->device = filespec2_split->device; |
| 604 | filespec1_split->devicelen = filespec2_split->devicelen; |
| 605 | } |
| 606 | if (!filespec1_split->dir) |
| 607 | { |
| 608 | filespec1_split->dir = filespec2_split->dir; |
| 609 | filespec1_split->dirlen = filespec2_split->dirlen; |
| 610 | } |
| 611 | else if (filespec1_split->dir[0] != '\\' |
| 612 | && filespec1_split->dir[0] != '/') |
| 613 | { |
| 614 | filespec1_split->predir = filespec2_split->dir; |
| 615 | filespec1_split->predirlen = filespec2_split->dirlen; |
| 616 | } |
| 617 | if (!filespec1_split->file) |
| 618 | { |
| 619 | filespec1_split->file = filespec2_split->file; |
| 620 | filespec1_split->filelen = filespec2_split->filelen; |
| 621 | } |
| 622 | |
| 623 | merged = win32_joiner(dso, filespec1_split); |
| 624 | } |
| 625 | OPENSSL_free(filespec1_split); |
| 626 | OPENSSL_free(filespec2_split); |
| 627 | return(merged); |
| 628 | } |
| 629 | |
| 630 | static char *win32_name_converter(DSO *dso, const char *filename) |
| 631 | { |
| 632 | char *translated; |
| 633 | int len, transform; |
| 634 | |
| 635 | len = strlen(filename); |
| 636 | transform = ((strstr(filename, "/") == NULL) && |
| 637 | (strstr(filename, "\\") == NULL) && |
| 638 | (strstr(filename, ":") == NULL)); |
| 639 | if(transform) |
| 640 | /* We will convert this to "%s.dll" */ |
| 641 | translated = OPENSSL_malloc(len + 5); |
| 642 | else |
| 643 | /* We will simply duplicate filename */ |
| 644 | translated = OPENSSL_malloc(len + 1); |
| 645 | if(translated == NULL) |
| 646 | { |
| 647 | DSOerr(DSO_F_WIN32_NAME_CONVERTER, |
| 648 | DSO_R_NAME_TRANSLATION_FAILED); |
| 649 | return(NULL); |
| 650 | } |
| 651 | if(transform) |
| 652 | sprintf(translated, "%s.dll", filename); |
| 653 | else |
| 654 | sprintf(translated, "%s", filename); |
| 655 | return(translated); |
| 656 | } |
| 657 | |
| 658 | static const char *openssl_strnchr(const char *string, int c, size_t len) |
| 659 | { |
| 660 | size_t i; |
| 661 | const char *p; |
| 662 | for (i = 0, p = string; i < len && *p; i++, p++) |
| 663 | { |
| 664 | if (*p == c) |
| 665 | return p; |
| 666 | } |
| 667 | return NULL; |
| 668 | } |
| 669 | |
| 670 | #include <tlhelp32.h> |
| 671 | #ifdef _WIN32_WCE |
| 672 | # define DLLNAME "TOOLHELP.DLL" |
| 673 | #else |
| 674 | # ifdef MODULEENTRY32 |
| 675 | # undef MODULEENTRY32 /* unmask the ASCII version! */ |
| 676 | # endif |
| 677 | # define DLLNAME "KERNEL32.DLL" |
| 678 | #endif |
| 679 | |
| 680 | typedef HANDLE (WINAPI *CREATETOOLHELP32SNAPSHOT)(DWORD, DWORD); |
| 681 | typedef BOOL (WINAPI *CLOSETOOLHELP32SNAPSHOT)(HANDLE); |
| 682 | typedef BOOL (WINAPI *MODULE32)(HANDLE, MODULEENTRY32 *); |
| 683 | |
| 684 | static int win32_pathbyaddr(void *addr,char *path,int sz) |
| 685 | { |
| 686 | HMODULE dll; |
| 687 | HANDLE hModuleSnap = INVALID_HANDLE_VALUE; |
| 688 | MODULEENTRY32 me32; |
| 689 | CREATETOOLHELP32SNAPSHOT create_snap; |
| 690 | CLOSETOOLHELP32SNAPSHOT close_snap; |
| 691 | MODULE32 module_first, module_next; |
| 692 | int len; |
| 693 | |
| 694 | if (addr == NULL) |
| 695 | { |
| 696 | union { int(*f)(void*,char*,int); void *p; } t = |
| 697 | { win32_pathbyaddr }; |
| 698 | addr = t.p; |
| 699 | } |
| 700 | |
| 701 | dll = LoadLibrary(TEXT(DLLNAME)); |
| 702 | if (dll == NULL) |
| 703 | { |
| 704 | DSOerr(DSO_F_WIN32_PATHBYADDR,DSO_R_UNSUPPORTED); |
| 705 | return -1; |
| 706 | } |
| 707 | |
| 708 | create_snap = (CREATETOOLHELP32SNAPSHOT) |
| 709 | GetProcAddress(dll,"CreateToolhelp32Snapshot"); |
| 710 | if (create_snap == NULL) |
| 711 | { |
| 712 | FreeLibrary(dll); |
| 713 | DSOerr(DSO_F_WIN32_PATHBYADDR,DSO_R_UNSUPPORTED); |
| 714 | return -1; |
| 715 | } |
| 716 | /* We take the rest for granted... */ |
| 717 | #ifdef _WIN32_WCE |
| 718 | close_snap = (CLOSETOOLHELP32SNAPSHOT) |
| 719 | GetProcAddress(dll,"CloseToolhelp32Snapshot"); |
| 720 | #else |
| 721 | close_snap = (CLOSETOOLHELP32SNAPSHOT)CloseHandle; |
| 722 | #endif |
| 723 | module_first = (MODULE32)GetProcAddress(dll,"Module32First"); |
| 724 | module_next = (MODULE32)GetProcAddress(dll,"Module32Next"); |
| 725 | |
| 726 | hModuleSnap = (*create_snap)(TH32CS_SNAPMODULE,0); |
| 727 | if( hModuleSnap == INVALID_HANDLE_VALUE ) |
| 728 | { |
| 729 | FreeLibrary(dll); |
| 730 | DSOerr(DSO_F_WIN32_PATHBYADDR,DSO_R_UNSUPPORTED); |
| 731 | return -1; |
| 732 | } |
| 733 | |
| 734 | me32.dwSize = sizeof(me32); |
| 735 | |
| 736 | if(!(*module_first)(hModuleSnap,&me32)) |
| 737 | { |
| 738 | (*close_snap)(hModuleSnap); |
| 739 | FreeLibrary(dll); |
| 740 | DSOerr(DSO_F_WIN32_PATHBYADDR,DSO_R_FAILURE); |
| 741 | return -1; |
| 742 | } |
| 743 | |
| 744 | do { |
| 745 | if ((BYTE *)addr >= me32.modBaseAddr && |
| 746 | (BYTE *)addr < me32.modBaseAddr+me32.modBaseSize) |
| 747 | { |
| 748 | (*close_snap)(hModuleSnap); |
| 749 | FreeLibrary(dll); |
| 750 | #ifdef _WIN32_WCE |
| 751 | # if _WIN32_WCE >= 101 |
| 752 | return WideCharToMultiByte(CP_ACP,0,me32.szExePath,-1, |
| 753 | path,sz,NULL,NULL); |
| 754 | # else |
| 755 | len = (int)wcslen(me32.szExePath); |
| 756 | if (sz <= 0) return len+1; |
| 757 | if (len >= sz) len=sz-1; |
| 758 | for(i=0;i<len;i++) |
| 759 | path[i] = (char)me32.szExePath[i]; |
| 760 | path[len++] = 0; |
| 761 | return len; |
| 762 | # endif |
| 763 | #else |
| 764 | len = (int)strlen(me32.szExePath); |
| 765 | if (sz <= 0) return len+1; |
| 766 | if (len >= sz) len=sz-1; |
| 767 | memcpy(path,me32.szExePath,len); |
| 768 | path[len++] = 0; |
| 769 | return len; |
| 770 | #endif |
| 771 | } |
| 772 | } while((*module_next)(hModuleSnap, &me32)); |
| 773 | |
| 774 | (*close_snap)(hModuleSnap); |
| 775 | FreeLibrary(dll); |
| 776 | return 0; |
| 777 | } |
| 778 | |
| 779 | static void *win32_globallookup(const char *name) |
| 780 | { |
| 781 | HMODULE dll; |
| 782 | HANDLE hModuleSnap = INVALID_HANDLE_VALUE; |
| 783 | MODULEENTRY32 me32; |
| 784 | CREATETOOLHELP32SNAPSHOT create_snap; |
| 785 | CLOSETOOLHELP32SNAPSHOT close_snap; |
| 786 | MODULE32 module_first, module_next; |
| 787 | FARPROC ret=NULL; |
| 788 | |
| 789 | dll = LoadLibrary(TEXT(DLLNAME)); |
| 790 | if (dll == NULL) |
| 791 | { |
| 792 | DSOerr(DSO_F_WIN32_GLOBALLOOKUP,DSO_R_UNSUPPORTED); |
| 793 | return NULL; |
| 794 | } |
| 795 | |
| 796 | create_snap = (CREATETOOLHELP32SNAPSHOT) |
| 797 | GetProcAddress(dll,"CreateToolhelp32Snapshot"); |
| 798 | if (create_snap == NULL) |
| 799 | { |
| 800 | FreeLibrary(dll); |
| 801 | DSOerr(DSO_F_WIN32_GLOBALLOOKUP,DSO_R_UNSUPPORTED); |
| 802 | return NULL; |
| 803 | } |
| 804 | /* We take the rest for granted... */ |
| 805 | #ifdef _WIN32_WCE |
| 806 | close_snap = (CLOSETOOLHELP32SNAPSHOT) |
| 807 | GetProcAddress(dll,"CloseToolhelp32Snapshot"); |
| 808 | #else |
| 809 | close_snap = (CLOSETOOLHELP32SNAPSHOT)CloseHandle; |
| 810 | #endif |
| 811 | module_first = (MODULE32)GetProcAddress(dll,"Module32First"); |
| 812 | module_next = (MODULE32)GetProcAddress(dll,"Module32Next"); |
| 813 | |
| 814 | hModuleSnap = (*create_snap)(TH32CS_SNAPMODULE,0); |
| 815 | if( hModuleSnap == INVALID_HANDLE_VALUE ) |
| 816 | { |
| 817 | FreeLibrary(dll); |
| 818 | DSOerr(DSO_F_WIN32_GLOBALLOOKUP,DSO_R_UNSUPPORTED); |
| 819 | return NULL; |
| 820 | } |
| 821 | |
| 822 | me32.dwSize = sizeof(me32); |
| 823 | |
| 824 | if (!(*module_first)(hModuleSnap,&me32)) |
| 825 | { |
| 826 | (*close_snap)(hModuleSnap); |
| 827 | FreeLibrary(dll); |
| 828 | return NULL; |
| 829 | } |
| 830 | |
| 831 | do { |
| 832 | if ((ret = GetProcAddress(me32.hModule,name))) |
| 833 | { |
| 834 | (*close_snap)(hModuleSnap); |
| 835 | FreeLibrary(dll); |
| 836 | return ret; |
| 837 | } |
| 838 | } while((*module_next)(hModuleSnap,&me32)); |
| 839 | |
| 840 | (*close_snap)(hModuleSnap); |
| 841 | FreeLibrary(dll); |
| 842 | return NULL; |
| 843 | } |
| 844 | #endif /* DSO_WIN32 */ |