| OLD | NEW |
|---|
| (Empty) |
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 /* | |
| 6 * secport.c - portability interfaces for security libraries | |
| 7 * | |
| 8 * This file abstracts out libc functionality that libsec depends on | |
| 9 * | |
| 10 * NOTE - These are not public interfaces | |
| 11 * | |
| 12 * $Id: secport.c,v 1.31 2012/11/14 01:14:12 wtc%google.com Exp $ | |
| 13 */ | |
| 14 | |
| 15 #include "seccomon.h" | |
| 16 #include "prmem.h" | |
| 17 #include "prerror.h" | |
| 18 #include "plarena.h" | |
| 19 #include "secerr.h" | |
| 20 #include "prmon.h" | |
| 21 #include "nssilock.h" | |
| 22 #include "secport.h" | |
| 23 #include "prenv.h" | |
| 24 | |
| 25 #ifdef DEBUG | |
| 26 #define THREADMARK | |
| 27 #endif /* DEBUG */ | |
| 28 | |
| 29 #ifdef THREADMARK | |
| 30 #include "prthread.h" | |
| 31 #endif /* THREADMARK */ | |
| 32 | |
| 33 #if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS) | |
| 34 #include <stdlib.h> | |
| 35 #else | |
| 36 #include "wtypes.h" | |
| 37 #endif | |
| 38 | |
| 39 #define SET_ERROR_CODE /* place holder for code to set PR error code. */ | |
| 40 | |
| 41 #ifdef THREADMARK | |
| 42 typedef struct threadmark_mark_str { | |
| 43 struct threadmark_mark_str *next; | |
| 44 void *mark; | |
| 45 } threadmark_mark; | |
| 46 | |
| 47 #endif /* THREADMARK */ | |
| 48 | |
| 49 /* The value of this magic must change each time PORTArenaPool changes. */ | |
| 50 #define ARENAPOOL_MAGIC 0xB8AC9BDF | |
| 51 | |
| 52 typedef struct PORTArenaPool_str { | |
| 53 PLArenaPool arena; | |
| 54 PRUint32 magic; | |
| 55 PRLock * lock; | |
| 56 #ifdef THREADMARK | |
| 57 PRThread *marking_thread; | |
| 58 threadmark_mark *first_mark; | |
| 59 #endif | |
| 60 } PORTArenaPool; | |
| 61 | |
| 62 | |
| 63 /* count of allocation failures. */ | |
| 64 unsigned long port_allocFailures; | |
| 65 | |
| 66 /* locations for registering Unicode conversion functions. | |
| 67 * XXX is this the appropriate location? or should they be | |
| 68 * moved to client/server specific locations? | |
| 69 */ | |
| 70 PORTCharConversionFunc ucs4Utf8ConvertFunc; | |
| 71 PORTCharConversionFunc ucs2Utf8ConvertFunc; | |
| 72 PORTCharConversionWSwapFunc ucs2AsciiConvertFunc; | |
| 73 | |
| 74 void * | |
| 75 PORT_Alloc(size_t bytes) | |
| 76 { | |
| 77 void *rv; | |
| 78 | |
| 79 /* Always allocate a non-zero amount of bytes */ | |
| 80 rv = (void *)PR_Malloc(bytes ? bytes : 1); | |
| 81 if (!rv) { | |
| 82 ++port_allocFailures; | |
| 83 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 84 } | |
| 85 return rv; | |
| 86 } | |
| 87 | |
| 88 void * | |
| 89 PORT_Realloc(void *oldptr, size_t bytes) | |
| 90 { | |
| 91 void *rv; | |
| 92 | |
| 93 rv = (void *)PR_Realloc(oldptr, bytes); | |
| 94 if (!rv) { | |
| 95 ++port_allocFailures; | |
| 96 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 97 } | |
| 98 return rv; | |
| 99 } | |
| 100 | |
| 101 void * | |
| 102 PORT_ZAlloc(size_t bytes) | |
| 103 { | |
| 104 void *rv; | |
| 105 | |
| 106 /* Always allocate a non-zero amount of bytes */ | |
| 107 rv = (void *)PR_Calloc(1, bytes ? bytes : 1); | |
| 108 if (!rv) { | |
| 109 ++port_allocFailures; | |
| 110 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 111 } | |
| 112 return rv; | |
| 113 } | |
| 114 | |
| 115 void | |
| 116 PORT_Free(void *ptr) | |
| 117 { | |
| 118 if (ptr) { | |
| 119 PR_Free(ptr); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 void | |
| 124 PORT_ZFree(void *ptr, size_t len) | |
| 125 { | |
| 126 if (ptr) { | |
| 127 memset(ptr, 0, len); | |
| 128 PR_Free(ptr); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 char * | |
| 133 PORT_Strdup(const char *str) | |
| 134 { | |
| 135 size_t len = PORT_Strlen(str)+1; | |
| 136 char *newstr; | |
| 137 | |
| 138 newstr = (char *)PORT_Alloc(len); | |
| 139 if (newstr) { | |
| 140 PORT_Memcpy(newstr, str, len); | |
| 141 } | |
| 142 return newstr; | |
| 143 } | |
| 144 | |
| 145 void | |
| 146 PORT_SetError(int value) | |
| 147 { | |
| 148 #ifdef DEBUG_jp96085 | |
| 149 PORT_Assert(value != SEC_ERROR_REUSED_ISSUER_AND_SERIAL); | |
| 150 #endif | |
| 151 PR_SetError(value, 0); | |
| 152 return; | |
| 153 } | |
| 154 | |
| 155 int | |
| 156 PORT_GetError(void) | |
| 157 { | |
| 158 return(PR_GetError()); | |
| 159 } | |
| 160 | |
| 161 /********************* Arena code follows ***************************** | |
| 162 * ArenaPools are like heaps. The memory in them consists of large blocks, | |
| 163 * called arenas, which are allocated from the/a system heap. Inside an | |
| 164 * ArenaPool, the arenas are organized as if they were in a stack. Newly | |
| 165 * allocated arenas are "pushed" on that stack. When you attempt to | |
| 166 * allocate memory from an ArenaPool, the code first looks to see if there | |
| 167 * is enough unused space in the top arena on the stack to satisfy your | |
| 168 * request, and if so, your request is satisfied from that arena. | |
| 169 * Otherwise, a new arena is allocated (or taken from NSPR's list of freed | |
| 170 * arenas) and pushed on to the stack. The new arena is always big enough | |
| 171 * to satisfy the request, and is also at least a minimum size that is | |
| 172 * established at the time that the ArenaPool is created. | |
| 173 * | |
| 174 * The ArenaMark function returns the address of a marker in the arena at | |
| 175 * the top of the arena stack. It is the address of the place in the arena | |
| 176 * on the top of the arena stack from which the next block of memory will | |
| 177 * be allocated. Each ArenaPool has its own separate stack, and hence | |
| 178 * marks are only relevant to the ArenaPool from which they are gotten. | |
| 179 * Marks may be nested. That is, a thread can get a mark, and then get | |
| 180 * another mark. | |
| 181 * | |
| 182 * It is intended that all the marks in an ArenaPool may only be owned by a | |
| 183 * single thread. In DEBUG builds, this is enforced. In non-DEBUG builds, | |
| 184 * it is not. In DEBUG builds, when a thread gets a mark from an | |
| 185 * ArenaPool, no other thread may acquire a mark in that ArenaPool while | |
| 186 * that mark exists, that is, until that mark is unmarked or released. | |
| 187 * Therefore, it is important that every mark be unmarked or released when | |
| 188 * the creating thread has no further need for exclusive ownership of the | |
| 189 * right to manage the ArenaPool. | |
| 190 * | |
| 191 * The ArenaUnmark function discards the ArenaMark at the address given, | |
| 192 * and all marks nested inside that mark (that is, acquired from that same | |
| 193 * ArenaPool while that mark existed). It is an error for a thread other | |
| 194 * than the mark's creator to try to unmark it. When a thread has unmarked | |
| 195 * all its marks from an ArenaPool, then another thread is able to set | |
| 196 * marks in that ArenaPool. ArenaUnmark does not deallocate (or "pop") any | |
| 197 * memory allocated from the ArenaPool since the mark was created. | |
| 198 * | |
| 199 * ArenaRelease "pops" the stack back to the mark, deallocating all the | |
| 200 * memory allocated from the arenas in the ArenaPool since that mark was | |
| 201 * created, and removing any arenas from the ArenaPool that have no | |
| 202 * remaining active allocations when that is done. It implicitly releases | |
| 203 * any marks nested inside the mark being explicitly released. It is the | |
| 204 * only operation, other than destroying the arenapool, that potentially | |
| 205 * reduces the number of arenas on the stack. Otherwise, the stack grows | |
| 206 * until the arenapool is destroyed, at which point all the arenas are | |
| 207 * freed or returned to a "free arena list", depending on their sizes. | |
| 208 */ | |
| 209 PLArenaPool * | |
| 210 PORT_NewArena(unsigned long chunksize) | |
| 211 { | |
| 212 PORTArenaPool *pool; | |
| 213 | |
| 214 pool = PORT_ZNew(PORTArenaPool); | |
| 215 if (!pool) { | |
| 216 return NULL; | |
| 217 } | |
| 218 pool->magic = ARENAPOOL_MAGIC; | |
| 219 pool->lock = PZ_NewLock(nssILockArena); | |
| 220 if (!pool->lock) { | |
| 221 ++port_allocFailures; | |
| 222 PORT_Free(pool); | |
| 223 return NULL; | |
| 224 } | |
| 225 PL_InitArenaPool(&pool->arena, "security", chunksize, sizeof(double)); | |
| 226 return(&pool->arena); | |
| 227 } | |
| 228 | |
| 229 #define MAX_SIZE 0x7fffffffUL | |
| 230 | |
| 231 void * | |
| 232 PORT_ArenaAlloc(PLArenaPool *arena, size_t size) | |
| 233 { | |
| 234 void *p = NULL; | |
| 235 | |
| 236 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 237 | |
| 238 if (size <= 0) { | |
| 239 size = 1; | |
| 240 } | |
| 241 | |
| 242 if (size > MAX_SIZE) { | |
| 243 /* you lose. */ | |
| 244 } else | |
| 245 /* Is it one of ours? Assume so and check the magic */ | |
| 246 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 247 PZ_Lock(pool->lock); | |
| 248 #ifdef THREADMARK | |
| 249 /* Most likely one of ours. Is there a thread id? */ | |
| 250 if (pool->marking_thread && | |
| 251 pool->marking_thread != PR_GetCurrentThread() ) { | |
| 252 /* Another thread holds a mark in this arena */ | |
| 253 PZ_Unlock(pool->lock); | |
| 254 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 255 PORT_Assert(0); | |
| 256 return NULL; | |
| 257 } /* tid != null */ | |
| 258 #endif /* THREADMARK */ | |
| 259 PL_ARENA_ALLOCATE(p, arena, size); | |
| 260 PZ_Unlock(pool->lock); | |
| 261 } else { | |
| 262 PL_ARENA_ALLOCATE(p, arena, size); | |
| 263 } | |
| 264 | |
| 265 if (!p) { | |
| 266 ++port_allocFailures; | |
| 267 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 268 } | |
| 269 | |
| 270 return(p); | |
| 271 } | |
| 272 | |
| 273 void * | |
| 274 PORT_ArenaZAlloc(PLArenaPool *arena, size_t size) | |
| 275 { | |
| 276 void *p; | |
| 277 | |
| 278 if (size <= 0) | |
| 279 size = 1; | |
| 280 | |
| 281 p = PORT_ArenaAlloc(arena, size); | |
| 282 | |
| 283 if (p) { | |
| 284 PORT_Memset(p, 0, size); | |
| 285 } | |
| 286 | |
| 287 return(p); | |
| 288 } | |
| 289 | |
| 290 /* | |
| 291 * If zero is true, zeroize the arena memory before freeing it. | |
| 292 */ | |
| 293 void | |
| 294 PORT_FreeArena(PLArenaPool *arena, PRBool zero) | |
| 295 { | |
| 296 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 297 PRLock * lock = (PRLock *)0; | |
| 298 size_t len = sizeof *arena; | |
| 299 static PRBool checkedEnv = PR_FALSE; | |
| 300 static PRBool doFreeArenaPool = PR_FALSE; | |
| 301 | |
| 302 if (!pool) | |
| 303 return; | |
| 304 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 305 len = sizeof *pool; | |
| 306 lock = pool->lock; | |
| 307 PZ_Lock(lock); | |
| 308 } | |
| 309 if (!checkedEnv) { | |
| 310 /* no need for thread protection here */ | |
| 311 doFreeArenaPool = (PR_GetEnv("NSS_DISABLE_ARENA_FREE_LIST") == NULL); | |
| 312 checkedEnv = PR_TRUE; | |
| 313 } | |
| 314 if (zero) { | |
| 315 PL_ClearArenaPool(arena, 0); | |
| 316 } | |
| 317 if (doFreeArenaPool) { | |
| 318 PL_FreeArenaPool(arena); | |
| 319 } else { | |
| 320 PL_FinishArenaPool(arena); | |
| 321 } | |
| 322 PORT_ZFree(arena, len); | |
| 323 if (lock) { | |
| 324 PZ_Unlock(lock); | |
| 325 PZ_DestroyLock(lock); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 void * | |
| 330 PORT_ArenaGrow(PLArenaPool *arena, void *ptr, size_t oldsize, size_t newsize) | |
| 331 { | |
| 332 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 333 PORT_Assert(newsize >= oldsize); | |
| 334 | |
| 335 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 336 PZ_Lock(pool->lock); | |
| 337 /* Do we do a THREADMARK check here? */ | |
| 338 PL_ARENA_GROW(ptr, arena, oldsize, ( newsize - oldsize ) ); | |
| 339 PZ_Unlock(pool->lock); | |
| 340 } else { | |
| 341 PL_ARENA_GROW(ptr, arena, oldsize, ( newsize - oldsize ) ); | |
| 342 } | |
| 343 | |
| 344 return(ptr); | |
| 345 } | |
| 346 | |
| 347 void * | |
| 348 PORT_ArenaMark(PLArenaPool *arena) | |
| 349 { | |
| 350 void * result; | |
| 351 | |
| 352 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 353 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 354 PZ_Lock(pool->lock); | |
| 355 #ifdef THREADMARK | |
| 356 { | |
| 357 threadmark_mark *tm, **pw; | |
| 358 PRThread * currentThread = PR_GetCurrentThread(); | |
| 359 | |
| 360 if (! pool->marking_thread ) { | |
| 361 /* First mark */ | |
| 362 pool->marking_thread = currentThread; | |
| 363 } else if (currentThread != pool->marking_thread ) { | |
| 364 PZ_Unlock(pool->lock); | |
| 365 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 366 PORT_Assert(0); | |
| 367 return NULL; | |
| 368 } | |
| 369 | |
| 370 result = PL_ARENA_MARK(arena); | |
| 371 PL_ARENA_ALLOCATE(tm, arena, sizeof(threadmark_mark)); | |
| 372 if (!tm) { | |
| 373 PZ_Unlock(pool->lock); | |
| 374 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 375 return NULL; | |
| 376 } | |
| 377 | |
| 378 tm->mark = result; | |
| 379 tm->next = (threadmark_mark *)NULL; | |
| 380 | |
| 381 pw = &pool->first_mark; | |
| 382 while( *pw ) { | |
| 383 pw = &(*pw)->next; | |
| 384 } | |
| 385 | |
| 386 *pw = tm; | |
| 387 } | |
| 388 #else /* THREADMARK */ | |
| 389 result = PL_ARENA_MARK(arena); | |
| 390 #endif /* THREADMARK */ | |
| 391 PZ_Unlock(pool->lock); | |
| 392 } else { | |
| 393 /* a "pure" NSPR arena */ | |
| 394 result = PL_ARENA_MARK(arena); | |
| 395 } | |
| 396 return result; | |
| 397 } | |
| 398 | |
| 399 static void | |
| 400 port_ArenaZeroAfterMark(PLArenaPool *arena, void *mark) | |
| 401 { | |
| 402 PLArena *a = arena->current; | |
| 403 if (a->base <= (PRUword)mark && (PRUword)mark <= a->avail) { | |
| 404 /* fast path: mark falls in the current arena */ | |
| 405 memset(mark, 0, a->avail - (PRUword)mark); | |
| 406 } else { | |
| 407 /* slow path: need to find the arena that mark falls in */ | |
| 408 for (a = arena->first.next; a; a = a->next) { | |
| 409 PR_ASSERT(a->base <= a->avail && a->avail <= a->limit); | |
| 410 if (a->base <= (PRUword)mark && (PRUword)mark <= a->avail) { | |
| 411 memset(mark, 0, a->avail - (PRUword)mark); | |
| 412 a = a->next; | |
| 413 break; | |
| 414 } | |
| 415 } | |
| 416 for (; a; a = a->next) { | |
| 417 PR_ASSERT(a->base <= a->avail && a->avail <= a->limit); | |
| 418 memset((void *)a->base, 0, a->avail - a->base); | |
| 419 } | |
| 420 } | |
| 421 } | |
| 422 | |
| 423 static void | |
| 424 port_ArenaRelease(PLArenaPool *arena, void *mark, PRBool zero) | |
| 425 { | |
| 426 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 427 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 428 PZ_Lock(pool->lock); | |
| 429 #ifdef THREADMARK | |
| 430 { | |
| 431 threadmark_mark **pw, *tm; | |
| 432 | |
| 433 if (PR_GetCurrentThread() != pool->marking_thread ) { | |
| 434 PZ_Unlock(pool->lock); | |
| 435 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 436 PORT_Assert(0); | |
| 437 return /* no error indication available */ ; | |
| 438 } | |
| 439 | |
| 440 pw = &pool->first_mark; | |
| 441 while( *pw && (mark != (*pw)->mark) ) { | |
| 442 pw = &(*pw)->next; | |
| 443 } | |
| 444 | |
| 445 if (! *pw ) { | |
| 446 /* bad mark */ | |
| 447 PZ_Unlock(pool->lock); | |
| 448 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 449 PORT_Assert(0); | |
| 450 return /* no error indication available */ ; | |
| 451 } | |
| 452 | |
| 453 tm = *pw; | |
| 454 *pw = (threadmark_mark *)NULL; | |
| 455 | |
| 456 if (zero) { | |
| 457 port_ArenaZeroAfterMark(arena, mark); | |
| 458 } | |
| 459 PL_ARENA_RELEASE(arena, mark); | |
| 460 | |
| 461 if (! pool->first_mark ) { | |
| 462 pool->marking_thread = (PRThread *)NULL; | |
| 463 } | |
| 464 } | |
| 465 #else /* THREADMARK */ | |
| 466 if (zero) { | |
| 467 port_ArenaZeroAfterMark(arena, mark); | |
| 468 } | |
| 469 PL_ARENA_RELEASE(arena, mark); | |
| 470 #endif /* THREADMARK */ | |
| 471 PZ_Unlock(pool->lock); | |
| 472 } else { | |
| 473 if (zero) { | |
| 474 port_ArenaZeroAfterMark(arena, mark); | |
| 475 } | |
| 476 PL_ARENA_RELEASE(arena, mark); | |
| 477 } | |
| 478 } | |
| 479 | |
| 480 void | |
| 481 PORT_ArenaRelease(PLArenaPool *arena, void *mark) | |
| 482 { | |
| 483 port_ArenaRelease(arena, mark, PR_FALSE); | |
| 484 } | |
| 485 | |
| 486 /* | |
| 487 * Zeroize the arena memory before releasing it. | |
| 488 */ | |
| 489 void | |
| 490 PORT_ArenaZRelease(PLArenaPool *arena, void *mark) | |
| 491 { | |
| 492 port_ArenaRelease(arena, mark, PR_TRUE); | |
| 493 } | |
| 494 | |
| 495 void | |
| 496 PORT_ArenaUnmark(PLArenaPool *arena, void *mark) | |
| 497 { | |
| 498 #ifdef THREADMARK | |
| 499 PORTArenaPool *pool = (PORTArenaPool *)arena; | |
| 500 if (ARENAPOOL_MAGIC == pool->magic ) { | |
| 501 threadmark_mark **pw, *tm; | |
| 502 | |
| 503 PZ_Lock(pool->lock); | |
| 504 | |
| 505 if (PR_GetCurrentThread() != pool->marking_thread ) { | |
| 506 PZ_Unlock(pool->lock); | |
| 507 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 508 PORT_Assert(0); | |
| 509 return /* no error indication available */ ; | |
| 510 } | |
| 511 | |
| 512 pw = &pool->first_mark; | |
| 513 while( ((threadmark_mark *)NULL != *pw) && (mark != (*pw)->mark) ) { | |
| 514 pw = &(*pw)->next; | |
| 515 } | |
| 516 | |
| 517 if ((threadmark_mark *)NULL == *pw ) { | |
| 518 /* bad mark */ | |
| 519 PZ_Unlock(pool->lock); | |
| 520 PORT_SetError(SEC_ERROR_NO_MEMORY); | |
| 521 PORT_Assert(0); | |
| 522 return /* no error indication available */ ; | |
| 523 } | |
| 524 | |
| 525 tm = *pw; | |
| 526 *pw = (threadmark_mark *)NULL; | |
| 527 | |
| 528 if (! pool->first_mark ) { | |
| 529 pool->marking_thread = (PRThread *)NULL; | |
| 530 } | |
| 531 | |
| 532 PZ_Unlock(pool->lock); | |
| 533 } | |
| 534 #endif /* THREADMARK */ | |
| 535 } | |
| 536 | |
| 537 char * | |
| 538 PORT_ArenaStrdup(PLArenaPool *arena, const char *str) { | |
| 539 int len = PORT_Strlen(str)+1; | |
| 540 char *newstr; | |
| 541 | |
| 542 newstr = (char*)PORT_ArenaAlloc(arena,len); | |
| 543 if (newstr) { | |
| 544 PORT_Memcpy(newstr,str,len); | |
| 545 } | |
| 546 return newstr; | |
| 547 } | |
| 548 | |
| 549 /********************** end of arena functions ***********************/ | |
| 550 | |
| 551 /****************** unicode conversion functions ***********************/ | |
| 552 /* | |
| 553 * NOTE: These conversion functions all assume that the multibyte | |
| 554 * characters are going to be in NETWORK BYTE ORDER, not host byte | |
| 555 * order. This is because the only time we deal with UCS-2 and UCS-4 | |
| 556 * are when the data was received from or is going to be sent out | |
| 557 * over the wire (in, e.g. certificates). | |
| 558 */ | |
| 559 | |
| 560 void | |
| 561 PORT_SetUCS4_UTF8ConversionFunction(PORTCharConversionFunc convFunc) | |
| 562 { | |
| 563 ucs4Utf8ConvertFunc = convFunc; | |
| 564 } | |
| 565 | |
| 566 void | |
| 567 PORT_SetUCS2_ASCIIConversionFunction(PORTCharConversionWSwapFunc convFunc) | |
| 568 { | |
| 569 ucs2AsciiConvertFunc = convFunc; | |
| 570 } | |
| 571 | |
| 572 void | |
| 573 PORT_SetUCS2_UTF8ConversionFunction(PORTCharConversionFunc convFunc) | |
| 574 { | |
| 575 ucs2Utf8ConvertFunc = convFunc; | |
| 576 } | |
| 577 | |
| 578 PRBool | |
| 579 PORT_UCS4_UTF8Conversion(PRBool toUnicode, unsigned char *inBuf, | |
| 580 unsigned int inBufLen, unsigned char *outBuf, | |
| 581 unsigned int maxOutBufLen, unsigned int *outBufLen) | |
| 582 { | |
| 583 if(!ucs4Utf8ConvertFunc) { | |
| 584 return sec_port_ucs4_utf8_conversion_function(toUnicode, | |
| 585 inBuf, inBufLen, outBuf, maxOutBufLen, outBufLen); | |
| 586 } | |
| 587 | |
| 588 return (*ucs4Utf8ConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, | |
| 589 maxOutBufLen, outBufLen); | |
| 590 } | |
| 591 | |
| 592 PRBool | |
| 593 PORT_UCS2_UTF8Conversion(PRBool toUnicode, unsigned char *inBuf, | |
| 594 unsigned int inBufLen, unsigned char *outBuf, | |
| 595 unsigned int maxOutBufLen, unsigned int *outBufLen) | |
| 596 { | |
| 597 if(!ucs2Utf8ConvertFunc) { | |
| 598 return sec_port_ucs2_utf8_conversion_function(toUnicode, | |
| 599 inBuf, inBufLen, outBuf, maxOutBufLen, outBufLen); | |
| 600 } | |
| 601 | |
| 602 return (*ucs2Utf8ConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, | |
| 603 maxOutBufLen, outBufLen); | |
| 604 } | |
| 605 | |
| 606 PRBool | |
| 607 PORT_ISO88591_UTF8Conversion(const unsigned char *inBuf, | |
| 608 unsigned int inBufLen, unsigned char *outBuf, | |
| 609 unsigned int maxOutBufLen, unsigned int *outBufLen) | |
| 610 { | |
| 611 return sec_port_iso88591_utf8_conversion_function(inBuf, inBufLen, | |
| 612 outBuf, maxOutBufLen, outBufLen); | |
| 613 } | |
| 614 | |
| 615 PRBool | |
| 616 PORT_UCS2_ASCIIConversion(PRBool toUnicode, unsigned char *inBuf, | |
| 617 unsigned int inBufLen, unsigned char *outBuf, | |
| 618 unsigned int maxOutBufLen, unsigned int *outBufLen, | |
| 619 PRBool swapBytes) | |
| 620 { | |
| 621 if(!ucs2AsciiConvertFunc) { | |
| 622 return PR_FALSE; | |
| 623 } | |
| 624 | |
| 625 return (*ucs2AsciiConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, | |
| 626 maxOutBufLen, outBufLen, swapBytes); | |
| 627 } | |
| 628 | |
| 629 | |
| 630 /* Portable putenv. Creates/replaces an environment variable of the form | |
| 631 * envVarName=envValue | |
| 632 */ | |
| 633 int | |
| 634 NSS_PutEnv(const char * envVarName, const char * envValue) | |
| 635 { | |
| 636 SECStatus result = SECSuccess; | |
| 637 char * encoded; | |
| 638 int putEnvFailed; | |
| 639 #ifdef _WIN32 | |
| 640 PRBool setOK; | |
| 641 | |
| 642 setOK = SetEnvironmentVariable(envVarName, envValue); | |
| 643 if (!setOK) { | |
| 644 SET_ERROR_CODE | |
| 645 return SECFailure; | |
| 646 } | |
| 647 #endif | |
| 648 | |
| 649 encoded = (char *)PORT_ZAlloc(strlen(envVarName) + 2 + strlen(envValue)); | |
| 650 strcpy(encoded, envVarName); | |
| 651 strcat(encoded, "="); | |
| 652 strcat(encoded, envValue); | |
| 653 | |
| 654 putEnvFailed = putenv(encoded); /* adopt. */ | |
| 655 if (putEnvFailed) { | |
| 656 SET_ERROR_CODE | |
| 657 result = SECFailure; | |
| 658 PORT_Free(encoded); | |
| 659 } | |
| 660 return result; | |
| 661 } | |
| 662 | |
| 663 /* | |
| 664 * Perform a constant-time compare of two memory regions. The return value is | |
| 665 * 0 if the memory regions are equal and non-zero otherwise. | |
| 666 */ | |
| 667 int | |
| 668 NSS_SecureMemcmp(const void *ia, const void *ib, size_t n) | |
| 669 { | |
| 670 const unsigned char *a = (const unsigned char*) ia; | |
| 671 const unsigned char *b = (const unsigned char*) ib; | |
| 672 size_t i; | |
| 673 unsigned char r = 0; | |
| 674 | |
| 675 for (i = 0; i < n; ++i) { | |
| 676 r |= *a++ ^ *b++; | |
| 677 } | |
| 678 | |
| 679 return r; | |
| 680 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 14249009:
Change the NSS and NSPR source tree to the new directory structure to be (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/nss/