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24330d27 | 1 | /* |
4bd4418a | 2 | * $RCSId: xc/lib/fontconfig/src/fccache.c,v 1.12 2002/08/22 07:36:44 keithp Exp $ |
24330d27 | 3 | * |
46b51147 | 4 | * Copyright © 2000 Keith Packard |
03a212e5 | 5 | * Copyright © 2005 Patrick Lam |
24330d27 KP |
6 | * |
7 | * Permission to use, copy, modify, distribute, and sell this software and its | |
8 | * documentation for any purpose is hereby granted without fee, provided that | |
9 | * the above copyright notice appear in all copies and that both that | |
10 | * copyright notice and this permission notice appear in supporting | |
11 | * documentation, and that the name of Keith Packard not be used in | |
12 | * advertising or publicity pertaining to distribution of the software without | |
13 | * specific, written prior permission. Keith Packard makes no | |
14 | * representations about the suitability of this software for any purpose. It | |
15 | * is provided "as is" without express or implied warranty. | |
16 | * | |
17 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
18 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
19 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
20 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
21 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
22 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
23 | * PERFORMANCE OF THIS SOFTWARE. | |
24 | */ | |
25 | ||
212c9f43 | 26 | #include <fcntl.h> |
4262e0b3 | 27 | #include <dirent.h> |
ea44e218 | 28 | #include <string.h> |
212c9f43 PL |
29 | #include <sys/mman.h> |
30 | #include <sys/utsname.h> | |
fd77c154 PL |
31 | #include <sys/types.h> |
32 | #include <unistd.h> | |
24330d27 | 33 | #include "fcint.h" |
7fd7221e | 34 | #include <unistd.h> |
24330d27 | 35 | |
2dbe7597 | 36 | #define ENDIAN_TEST 0x12345678 |
7fd7221e | 37 | #define MACHINE_SIGNATURE_SIZE 9 + 5*20 + 1 |
2dbe7597 | 38 | |
ea44e218 PL |
39 | static int |
40 | FcDirCacheOpen (char * cache_file); | |
41 | ||
42 | static char * | |
43 | FcDirCacheHashName (char * cache_file, int collisions); | |
44 | ||
eb0cf671 | 45 | static off_t |
c60ec7cc | 46 | FcCacheSkipToArch (int fd, const char * arch); |
1b7be377 | 47 | |
eb0cf671 | 48 | static FcBool |
1d879de2 | 49 | FcCacheCopyOld (int fd, int fd_orig, off_t start); |
1b7be377 | 50 | |
eb0cf671 PL |
51 | static void * |
52 | FcDirCacheProduce (FcFontSet *set, FcCache * metadata); | |
1b7be377 PL |
53 | |
54 | static FcBool | |
e77c1718 | 55 | FcDirCacheConsume (int fd, const char * dir, FcFontSet *set); |
1b7be377 | 56 | |
2eb84374 | 57 | FcBool |
2304e38f | 58 | FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir); |
1b7be377 | 59 | |
eb0cf671 PL |
60 | static int |
61 | FcCacheNextOffset(off_t w); | |
1b7be377 | 62 | |
eb0cf671 PL |
63 | static char * |
64 | FcCacheMachineSignature (void); | |
1b7be377 PL |
65 | |
66 | static FcBool | |
eb0cf671 | 67 | FcCacheHaveBank (int bank); |
1b7be377 | 68 | |
e77c1718 PL |
69 | static void |
70 | FcCacheAddBankDir (int bank, const char * dir); | |
71 | ||
ea44e218 PL |
72 | struct MD5Context { |
73 | FcChar32 buf[4]; | |
74 | FcChar32 bits[2]; | |
75 | unsigned char in[64]; | |
76 | }; | |
77 | ||
78 | static void MD5Init(struct MD5Context *ctx); | |
79 | static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len); | |
80 | static void MD5Final(unsigned char digest[16], struct MD5Context *ctx); | |
81 | static void MD5Transform(FcChar32 buf[4], FcChar32 in[16]); | |
82 | ||
eb0cf671 | 83 | #define FC_DBG_CACHE_REF 1024 |
1b7be377 | 84 | |
8245771d PL |
85 | static char * |
86 | FcCacheReadString (int fd, char *dest, int len) | |
24330d27 | 87 | { |
212c9f43 | 88 | FcChar8 c; |
ccb3e93b | 89 | FcBool escape; |
ccb3e93b KP |
90 | int size; |
91 | int i; | |
24330d27 | 92 | |
24330d27 | 93 | if (len == 0) |
03a212e5 | 94 | return 0; |
24330d27 | 95 | |
ccb3e93b KP |
96 | size = len; |
97 | i = 0; | |
24330d27 | 98 | escape = FcFalse; |
212c9f43 | 99 | while (read (fd, &c, 1) == 1) |
24330d27 KP |
100 | { |
101 | if (!escape) | |
102 | { | |
103 | switch (c) { | |
104 | case '"': | |
ccb3e93b KP |
105 | c = '\0'; |
106 | break; | |
24330d27 KP |
107 | case '\\': |
108 | escape = FcTrue; | |
109 | continue; | |
110 | } | |
111 | } | |
ccb3e93b KP |
112 | if (i == size) |
113 | { | |
212c9f43 PL |
114 | dest[i++] = 0; |
115 | return dest; | |
ccb3e93b | 116 | } |
212c9f43 | 117 | dest[i++] = c; |
ccb3e93b | 118 | if (c == '\0') |
212c9f43 | 119 | return dest; |
24330d27 KP |
120 | escape = FcFalse; |
121 | } | |
ccb3e93b | 122 | return 0; |
24330d27 KP |
123 | } |
124 | ||
ea44e218 PL |
125 | static void |
126 | FcCacheSkipString (int fd) | |
127 | { | |
128 | FcChar8 c; | |
129 | FcBool escape; | |
130 | ||
131 | escape = FcFalse; | |
132 | while (read (fd, &c, 1) == 1) | |
133 | { | |
134 | if (!escape) | |
135 | { | |
136 | switch (c) { | |
137 | case '"': | |
138 | c = '\0'; | |
139 | break; | |
140 | case '\\': | |
141 | escape = FcTrue; | |
142 | continue; | |
143 | } | |
144 | } | |
145 | if (c == '\0') | |
146 | return; | |
147 | escape = FcFalse; | |
148 | } | |
149 | return; | |
150 | } | |
151 | ||
24330d27 | 152 | static FcBool |
8245771d | 153 | FcCacheWriteString (int fd, const char *chars) |
327a7fd4 | 154 | { |
212c9f43 | 155 | if (write (fd, chars, strlen(chars)+1) != strlen(chars)+1) |
327a7fd4 | 156 | return FcFalse; |
327a7fd4 KP |
157 | return FcTrue; |
158 | } | |
159 | ||
eb0cf671 PL |
160 | static void |
161 | FcGlobalCacheDirDestroy (FcGlobalCacheDir *d) | |
1b7be377 | 162 | { |
5e678e94 PL |
163 | FcMemFree (FC_MEM_STRING, strlen (d->name)+1); |
164 | free (d->name); | |
165 | FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheDir)); | |
166 | free (d); | |
1b7be377 PL |
167 | } |
168 | ||
eb0cf671 PL |
169 | FcGlobalCache * |
170 | FcGlobalCacheCreate (void) | |
1b7be377 | 171 | { |
eb0cf671 | 172 | FcGlobalCache *cache; |
1b7be377 | 173 | |
eb0cf671 PL |
174 | cache = malloc (sizeof (FcGlobalCache)); |
175 | if (!cache) | |
176 | return 0; | |
177 | FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCache)); | |
178 | cache->dirs = 0; | |
179 | cache->updated = FcFalse; | |
180 | cache->fd = -1; | |
181 | return cache; | |
1b7be377 PL |
182 | } |
183 | ||
eb0cf671 PL |
184 | void |
185 | FcGlobalCacheDestroy (FcGlobalCache *cache) | |
327a7fd4 | 186 | { |
eb0cf671 | 187 | FcGlobalCacheDir *d, *next; |
327a7fd4 | 188 | |
eb0cf671 | 189 | for (d = cache->dirs; d; d = next) |
327a7fd4 | 190 | { |
eb0cf671 PL |
191 | next = d->next; |
192 | FcGlobalCacheDirDestroy (d); | |
327a7fd4 | 193 | } |
eb0cf671 PL |
194 | FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCache)); |
195 | free (cache); | |
327a7fd4 KP |
196 | } |
197 | ||
198 | void | |
eb0cf671 | 199 | FcGlobalCacheLoad (FcGlobalCache *cache, |
03a212e5 | 200 | FcStrSet *staleDirs, |
2b25f00c PL |
201 | const FcChar8 *cache_file, |
202 | FcConfig *config) | |
327a7fd4 | 203 | { |
ea44e218 | 204 | char name_buf[FC_MAX_FILE_LEN]; |
eb0cf671 | 205 | FcGlobalCacheDir *d, *next; |
2b25f00c | 206 | FcFileTime config_time = FcConfigModifiedTime (config); |
eb0cf671 PL |
207 | char * current_arch_machine_name; |
208 | char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9]; | |
209 | off_t current_arch_start; | |
327a7fd4 | 210 | |
03a212e5 PL |
211 | struct stat cache_stat, dir_stat; |
212 | ||
213 | if (stat ((char *) cache_file, &cache_stat) < 0) | |
214 | return; | |
215 | ||
eb0cf671 PL |
216 | cache->fd = open ((char *) cache_file, O_RDONLY); |
217 | if (cache->fd == -1) | |
218 | return; | |
327a7fd4 | 219 | |
eb0cf671 | 220 | cache->updated = FcFalse; |
327a7fd4 | 221 | |
c60ec7cc PL |
222 | FcCacheReadString (cache->fd, name_buf, sizeof (name_buf)); |
223 | if (strcmp (name_buf, FC_GLOBAL_MAGIC_COOKIE) != 0) | |
224 | return; | |
225 | ||
eb0cf671 PL |
226 | current_arch_machine_name = FcCacheMachineSignature (); |
227 | current_arch_start = FcCacheSkipToArch(cache->fd, | |
c60ec7cc | 228 | current_arch_machine_name); |
eb0cf671 | 229 | if (current_arch_start < 0) |
e58b50e8 | 230 | goto bail_and_destroy; |
327a7fd4 | 231 | |
eb0cf671 | 232 | lseek (cache->fd, current_arch_start, SEEK_SET); |
03a212e5 PL |
233 | FcCacheReadString (cache->fd, candidate_arch_machine_name, |
234 | sizeof (candidate_arch_machine_name)); | |
235 | if (strlen(candidate_arch_machine_name) == 0) | |
e58b50e8 | 236 | goto bail_and_destroy; |
1b7be377 | 237 | |
eb0cf671 | 238 | while (1) |
1b7be377 | 239 | { |
8cb4c56d PL |
240 | off_t targ; |
241 | ||
eb0cf671 PL |
242 | FcCacheReadString (cache->fd, name_buf, sizeof (name_buf)); |
243 | if (!strlen(name_buf)) | |
1b7be377 | 244 | break; |
1b7be377 | 245 | |
9090cb9e PL |
246 | /* Directory must be older than the global cache file; also |
247 | cache must be newer than the config file. */ | |
03a212e5 | 248 | if (stat ((char *) name_buf, &dir_stat) < 0 || |
2b25f00c | 249 | dir_stat.st_mtime > cache_stat.st_mtime || |
9090cb9e | 250 | (config_time.set && cache_stat.st_mtime < config_time.time)) |
03a212e5 PL |
251 | { |
252 | FcCache md; | |
253 | ||
8245771d | 254 | FcStrSetAdd (staleDirs, FcStrCopy ((FcChar8 *)name_buf)); |
03a212e5 PL |
255 | read (cache->fd, &md, sizeof (FcCache)); |
256 | lseek (cache->fd, FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + md.count, SEEK_SET); | |
257 | continue; | |
258 | } | |
259 | ||
eb0cf671 PL |
260 | d = malloc (sizeof (FcGlobalCacheDir)); |
261 | if (!d) | |
262 | goto bail1; | |
1b7be377 | 263 | |
eb0cf671 PL |
264 | d->next = cache->dirs; |
265 | cache->dirs = d; | |
1b7be377 | 266 | |
8245771d | 267 | d->name = (char *)FcStrCopy ((FcChar8 *)name_buf); |
eb0cf671 PL |
268 | d->ent = 0; |
269 | d->offset = lseek (cache->fd, 0, SEEK_CUR); | |
8cb4c56d PL |
270 | if (read (cache->fd, &d->metadata, sizeof (FcCache)) != sizeof (FcCache)) |
271 | goto bail1; | |
272 | targ = FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + d->metadata.count; | |
273 | if (lseek (cache->fd, targ, SEEK_SET) != targ) | |
274 | goto bail1; | |
1b7be377 | 275 | } |
eb0cf671 | 276 | return; |
1b7be377 | 277 | |
eb0cf671 PL |
278 | bail1: |
279 | for (d = cache->dirs; d; d = next) | |
1b7be377 | 280 | { |
eb0cf671 PL |
281 | next = d->next; |
282 | free (d); | |
1b7be377 | 283 | } |
eb0cf671 | 284 | cache->dirs = 0; |
e58b50e8 PL |
285 | |
286 | close (cache->fd); | |
287 | cache->fd = -1; | |
288 | return; | |
289 | ||
290 | bail_and_destroy: | |
eb0cf671 PL |
291 | close (cache->fd); |
292 | cache->fd = -1; | |
e58b50e8 PL |
293 | |
294 | if (stat ((char *) cache_file, &cache_stat) == 0) | |
295 | unlink ((char *)cache_file); | |
296 | ||
eb0cf671 | 297 | return; |
e58b50e8 | 298 | |
1b7be377 PL |
299 | } |
300 | ||
1b7be377 | 301 | FcBool |
8245771d | 302 | FcGlobalCacheReadDir (FcFontSet *set, FcStrSet *dirs, FcGlobalCache * cache, const char *dir, FcConfig *config) |
1b7be377 | 303 | { |
eb0cf671 | 304 | FcGlobalCacheDir *d; |
03a212e5 | 305 | FcBool ret = FcFalse; |
1b7be377 | 306 | |
eb0cf671 | 307 | if (cache->fd == -1) |
1b7be377 | 308 | return FcFalse; |
1b7be377 | 309 | |
eb0cf671 | 310 | for (d = cache->dirs; d; d = d->next) |
1b7be377 | 311 | { |
03a212e5 | 312 | if (strncmp (d->name, dir, strlen(dir)) == 0) |
1b7be377 | 313 | { |
eb0cf671 | 314 | lseek (cache->fd, d->offset, SEEK_SET); |
e77c1718 | 315 | if (!FcDirCacheConsume (cache->fd, dir, set)) |
eb0cf671 | 316 | return FcFalse; |
03a212e5 PL |
317 | if (strcmp (d->name, dir) == 0) |
318 | ret = FcTrue; | |
1b7be377 | 319 | } |
1b7be377 | 320 | } |
1b7be377 | 321 | |
03a212e5 | 322 | return ret; |
1b7be377 PL |
323 | } |
324 | ||
eb0cf671 PL |
325 | FcBool |
326 | FcGlobalCacheUpdate (FcGlobalCache *cache, | |
8245771d | 327 | const char *name, |
eb0cf671 | 328 | FcFontSet *set) |
1b7be377 | 329 | { |
eb0cf671 | 330 | FcGlobalCacheDir * d; |
1b7be377 | 331 | |
eb0cf671 | 332 | for (d = cache->dirs; d; d = d->next) |
1b7be377 | 333 | { |
eb0cf671 | 334 | if (strcmp(d->name, name) == 0) |
1b7be377 | 335 | break; |
24330d27 | 336 | } |
24330d27 | 337 | |
eb0cf671 | 338 | if (!d) |
24330d27 | 339 | { |
eb0cf671 PL |
340 | d = malloc (sizeof (FcGlobalCacheDir)); |
341 | if (!d) | |
342 | return FcFalse; | |
343 | d->next = cache->dirs; | |
344 | cache->dirs = d; | |
24330d27 | 345 | } |
24330d27 | 346 | |
eb0cf671 | 347 | cache->updated = FcTrue; |
24330d27 | 348 | |
8245771d | 349 | d->name = (char *)FcStrCopy ((FcChar8 *)name); |
eb0cf671 PL |
350 | d->ent = FcDirCacheProduce (set, &d->metadata); |
351 | d->offset = 0; | |
352 | return FcTrue; | |
24330d27 KP |
353 | } |
354 | ||
355 | FcBool | |
327a7fd4 KP |
356 | FcGlobalCacheSave (FcGlobalCache *cache, |
357 | const FcChar8 *cache_file) | |
24330d27 | 358 | { |
1d879de2 | 359 | int fd, fd_orig; |
327a7fd4 | 360 | FcGlobalCacheDir *dir; |
327a7fd4 | 361 | FcAtomic *atomic; |
eb0cf671 PL |
362 | off_t current_arch_start = 0, truncate_to; |
363 | char * current_arch_machine_name, * header; | |
24330d27 | 364 | |
eb0cf671 | 365 | if (!cache->updated) |
24330d27 KP |
366 | return FcTrue; |
367 | ||
daeed6e0 | 368 | #if defined (HAVE_GETUID) && defined (HAVE_GETEUID) |
a391da8f KP |
369 | /* Set-UID programs can't safely update the cache */ |
370 | if (getuid () != geteuid ()) | |
371 | return FcFalse; | |
daeed6e0 | 372 | #endif |
a391da8f | 373 | |
134f6011 KP |
374 | atomic = FcAtomicCreate (cache_file); |
375 | if (!atomic) | |
1d879de2 PL |
376 | return FcFalse; |
377 | ||
134f6011 | 378 | if (!FcAtomicLock (atomic)) |
24330d27 | 379 | goto bail1; |
eb0cf671 PL |
380 | fd = open ((char *) FcAtomicNewFile(atomic), O_RDWR | O_CREAT, |
381 | S_IRUSR | S_IWUSR); | |
382 | if (fd == -1) | |
24330d27 KP |
383 | goto bail2; |
384 | ||
1d879de2 PL |
385 | fd_orig = open ((char *) FcAtomicOrigFile(atomic), O_RDONLY); |
386 | ||
eb0cf671 | 387 | current_arch_machine_name = FcCacheMachineSignature (); |
1d879de2 PL |
388 | if (fd_orig == -1) |
389 | current_arch_start = 0; | |
390 | else | |
391 | current_arch_start = FcCacheSkipToArch (fd_orig, | |
c60ec7cc | 392 | current_arch_machine_name); |
1d879de2 | 393 | |
eb0cf671 | 394 | if (current_arch_start < 0) |
649cc361 | 395 | current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END)); |
eb0cf671 | 396 | |
1d879de2 PL |
397 | if (!FcCacheCopyOld(fd, fd_orig, current_arch_start)) |
398 | goto bail3; | |
399 | ||
400 | close (fd_orig); | |
401 | fd_orig = -1; | |
eb0cf671 PL |
402 | |
403 | current_arch_start = lseek(fd, 0, SEEK_CUR); | |
404 | if (ftruncate (fd, current_arch_start) == -1) | |
1d879de2 | 405 | goto bail3; |
eb0cf671 | 406 | |
03a212e5 PL |
407 | header = malloc (10 + strlen (current_arch_machine_name)); |
408 | if (!header) | |
1d879de2 | 409 | goto bail3; |
03a212e5 | 410 | |
8cb4c56d | 411 | truncate_to = current_arch_start + strlen(current_arch_machine_name) + 11; |
eb0cf671 | 412 | for (dir = cache->dirs; dir; dir = dir->next) |
24330d27 | 413 | { |
eb0cf671 PL |
414 | truncate_to += strlen(dir->name) + 1; |
415 | truncate_to += sizeof (FcCache); | |
1c5b6345 | 416 | truncate_to = FcCacheNextOffset (truncate_to); |
eb0cf671 PL |
417 | truncate_to += dir->metadata.count; |
418 | } | |
419 | truncate_to -= current_arch_start; | |
eb0cf671 | 420 | |
c60ec7cc | 421 | FcCacheWriteString (fd, FC_GLOBAL_MAGIC_COOKIE); |
8cb4c56d PL |
422 | sprintf (header, "%8x ", (int)truncate_to); |
423 | strcat (header, current_arch_machine_name); | |
424 | if (!FcCacheWriteString (fd, header)) | |
1d879de2 | 425 | goto bail4; |
8cb4c56d | 426 | |
eb0cf671 PL |
427 | for (dir = cache->dirs; dir; dir = dir->next) |
428 | { | |
c60ec7cc | 429 | if (dir->name) |
5e678e94 PL |
430 | { |
431 | FcCacheWriteString (fd, dir->name); | |
432 | write (fd, &dir->metadata, sizeof(FcCache)); | |
f6ee3db5 | 433 | lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)), SEEK_SET); |
5e678e94 PL |
434 | write (fd, dir->ent, dir->metadata.count); |
435 | free (dir->ent); | |
436 | } | |
24330d27 | 437 | } |
eb0cf671 | 438 | FcCacheWriteString (fd, ""); |
24330d27 | 439 | |
eb0cf671 | 440 | if (close (fd) == -1) |
1d879de2 | 441 | goto bail25; |
24330d27 | 442 | |
134f6011 | 443 | if (!FcAtomicReplaceOrig (atomic)) |
1d879de2 | 444 | goto bail25; |
24330d27 | 445 | |
134f6011 KP |
446 | FcAtomicUnlock (atomic); |
447 | FcAtomicDestroy (atomic); | |
448 | ||
24330d27 KP |
449 | cache->updated = FcFalse; |
450 | return FcTrue; | |
451 | ||
1d879de2 PL |
452 | bail4: |
453 | free (header); | |
454 | bail3: | |
455 | if (fd_orig != -1) | |
456 | close (fd_orig); | |
457 | ||
458 | close (fd); | |
459 | bail25: | |
134f6011 | 460 | FcAtomicDeleteNew (atomic); |
1d879de2 | 461 | bail2: |
134f6011 | 462 | FcAtomicUnlock (atomic); |
1d879de2 | 463 | bail1: |
134f6011 | 464 | FcAtomicDestroy (atomic); |
24330d27 KP |
465 | return FcFalse; |
466 | } | |
467 | ||
212c9f43 | 468 | /* |
eb0cf671 PL |
469 | * Find the next presumably-mmapable offset after the supplied file |
470 | * position. | |
212c9f43 | 471 | */ |
4262e0b3 PL |
472 | static int |
473 | FcCacheNextOffset(off_t w) | |
179c3995 | 474 | { |
7fd7221e PL |
475 | static long pagesize = -1; |
476 | if (pagesize == -1) | |
477 | pagesize = sysconf(_SC_PAGESIZE); | |
478 | if (w % pagesize == 0) | |
212c9f43 PL |
479 | return w; |
480 | else | |
7fd7221e | 481 | return ((w / pagesize)+1)*pagesize; |
179c3995 KP |
482 | } |
483 | ||
212c9f43 PL |
484 | /* return the address of the segment for the provided arch, |
485 | * or -1 if arch not found */ | |
486 | static off_t | |
c60ec7cc | 487 | FcCacheSkipToArch (int fd, const char * arch) |
212c9f43 | 488 | { |
2dbe7597 PL |
489 | char candidate_arch_machine_name_count[MACHINE_SIGNATURE_SIZE + 9]; |
490 | char * candidate_arch; | |
212c9f43 PL |
491 | off_t current_arch_start = 0; |
492 | ||
ea44e218 | 493 | lseek (fd, 0, SEEK_SET); |
c60ec7cc | 494 | FcCacheSkipString (fd); |
ea44e218 PL |
495 | current_arch_start = lseek (fd, 0, SEEK_CUR); |
496 | ||
212c9f43 PL |
497 | /* skip arches that are not the current arch */ |
498 | while (1) | |
499 | { | |
500 | long bs; | |
501 | ||
8cb4c56d PL |
502 | if (lseek (fd, current_arch_start, SEEK_SET) != current_arch_start) |
503 | return -1; | |
504 | ||
eb0cf671 | 505 | if (FcCacheReadString (fd, candidate_arch_machine_name_count, |
2dbe7597 | 506 | sizeof (candidate_arch_machine_name_count)) == 0) |
5e678e94 | 507 | return -1; |
2dbe7597 PL |
508 | if (!strlen(candidate_arch_machine_name_count)) |
509 | return -1; | |
510 | bs = strtol(candidate_arch_machine_name_count, &candidate_arch, 16); | |
8cb4c56d | 511 | |
13cdf607 | 512 | // count = 0 should probably be distinguished from the !bs condition |
8cb4c56d PL |
513 | if (!bs || bs < strlen (candidate_arch_machine_name_count)) |
514 | return -1; | |
515 | ||
2dbe7597 | 516 | candidate_arch++; /* skip leading space */ |
212c9f43 | 517 | |
2dbe7597 | 518 | if (strcmp (candidate_arch, arch)==0) |
5e678e94 | 519 | return current_arch_start; |
212c9f43 PL |
520 | current_arch_start += bs; |
521 | } | |
522 | ||
5e678e94 | 523 | return -1; |
212c9f43 PL |
524 | } |
525 | ||
526 | /* Cuts out the segment at the file pointer (moves everything else | |
527 | * down to cover it), and leaves the file pointer at the end of the | |
528 | * file. */ | |
212c9f43 | 529 | static FcBool |
1d879de2 | 530 | FcCacheCopyOld (int fd, int fd_orig, off_t start) |
212c9f43 | 531 | { |
eb0cf671 | 532 | char * buf = malloc (8192); |
2dbe7597 | 533 | char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9]; |
4262e0b3 | 534 | long bs; |
212c9f43 | 535 | int c, bytes_skipped; |
1d879de2 | 536 | off_t loc; |
212c9f43 PL |
537 | |
538 | if (!buf) | |
539 | return FcFalse; | |
540 | ||
1d879de2 PL |
541 | loc = 0; |
542 | lseek (fd, 0, SEEK_SET); lseek (fd_orig, 0, SEEK_SET); | |
543 | do | |
544 | { | |
545 | int b = 8192; | |
546 | if (loc + b > start) | |
547 | b = start - loc; | |
548 | ||
549 | if ((c = read (fd_orig, buf, b)) <= 0) | |
550 | break; | |
551 | if (write (fd, buf, c) < 0) | |
552 | goto bail; | |
553 | ||
554 | loc += c; | |
555 | } | |
556 | while (c > 0); | |
557 | ||
212c9f43 | 558 | lseek (fd, start, SEEK_SET); |
eb0cf671 | 559 | if (FcCacheReadString (fd, candidate_arch_machine_name, |
212c9f43 PL |
560 | sizeof (candidate_arch_machine_name)) == 0) |
561 | goto done; | |
2dbe7597 | 562 | if (!strlen(candidate_arch_machine_name)) |
212c9f43 PL |
563 | goto done; |
564 | ||
2dbe7597 | 565 | bs = strtol(candidate_arch_machine_name, 0, 16); |
212c9f43 PL |
566 | if (bs == 0) |
567 | goto done; | |
568 | ||
569 | bytes_skipped = 0; | |
570 | do | |
571 | { | |
572 | lseek (fd, start+bs+bytes_skipped, SEEK_SET); | |
eb0cf671 | 573 | if ((c = read (fd, buf, 8192)) <= 0) |
212c9f43 PL |
574 | break; |
575 | lseek (fd, start+bytes_skipped, SEEK_SET); | |
576 | if (write (fd, buf, c) < 0) | |
577 | goto bail; | |
578 | bytes_skipped += c; | |
579 | } | |
580 | while (c > 0); | |
581 | lseek (fd, start+bytes_skipped, SEEK_SET); | |
582 | ||
583 | done: | |
584 | free (buf); | |
585 | return FcTrue; | |
586 | ||
587 | bail: | |
588 | free (buf); | |
589 | return FcFalse; | |
590 | } | |
591 | ||
55c8fa4f | 592 | /* Does not check that the cache has the appropriate arch section. */ |
ec760b17 PL |
593 | /* Also, this can be fooled if the original location has a stale |
594 | * cache, and the hashed location has an up-to-date cache. Oh well, | |
595 | * sucks to be you in that case! */ | |
1b7be377 PL |
596 | FcBool |
597 | FcDirCacheValid (const FcChar8 *dir) | |
598 | { | |
ea44e218 | 599 | FcChar8 *cache_file; |
1b7be377 | 600 | struct stat file_stat, dir_stat; |
ea44e218 | 601 | int fd; |
1b7be377 PL |
602 | |
603 | if (stat ((char *) dir, &dir_stat) < 0) | |
1b7be377 | 604 | return FcFalse; |
6bf23804 | 605 | |
ea44e218 PL |
606 | cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
607 | if (!cache_file) | |
608 | return FcFalse; | |
609 | ||
610 | fd = FcDirCacheOpen ((char *)cache_file); | |
611 | ||
612 | if (fd < 0) | |
613 | goto bail; | |
614 | if (fstat (fd, &file_stat) < 0) | |
615 | goto bail1; | |
616 | ||
617 | close (fd); | |
55c8fa4f | 618 | FcStrFree (cache_file); |
ea44e218 | 619 | |
55c8fa4f PL |
620 | /* |
621 | * If the directory has been modified more recently than | |
622 | * the cache file, the cache is not valid | |
623 | */ | |
2b25f00c | 624 | if (dir_stat.st_mtime > file_stat.st_mtime) |
55c8fa4f | 625 | return FcFalse; |
2b25f00c | 626 | |
55c8fa4f | 627 | return FcTrue; |
ea44e218 PL |
628 | |
629 | bail1: | |
630 | close (fd); | |
631 | bail: | |
632 | FcStrFree (cache_file); | |
633 | return FcFalse; | |
55c8fa4f PL |
634 | } |
635 | ||
636 | /* Assumes that the cache file in 'dir' exists. | |
637 | * Checks that the cache has the appropriate arch section. */ | |
638 | FcBool | |
639 | FcDirCacheHasCurrentArch (const FcChar8 *dir) | |
640 | { | |
ea44e218 | 641 | char *cache_file; |
55c8fa4f PL |
642 | int fd; |
643 | off_t current_arch_start; | |
644 | char *current_arch_machine_name; | |
645 | ||
ea44e218 PL |
646 | cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
647 | if (!cache_file) | |
648 | return FcFalse; | |
6bf23804 | 649 | |
ea44e218 PL |
650 | fd = FcDirCacheOpen (cache_file); |
651 | if (fd < 0) | |
652 | goto bail; | |
653 | ||
654 | current_arch_machine_name = FcCacheMachineSignature(); | |
c60ec7cc | 655 | current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name); |
6bf23804 PL |
656 | close (fd); |
657 | ||
658 | if (current_arch_start < 0) | |
659 | return FcFalse; | |
55c8fa4f PL |
660 | |
661 | return FcTrue; | |
ea44e218 PL |
662 | |
663 | bail: | |
664 | free (cache_file); | |
665 | return FcFalse; | |
55c8fa4f | 666 | } |
6bf23804 | 667 | |
55c8fa4f PL |
668 | FcBool |
669 | FcDirCacheUnlink (const FcChar8 *dir) | |
670 | { | |
3bfae75d PL |
671 | char *cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
672 | char *cache_hashed; | |
673 | int fd, collisions; | |
15d7bd0a | 674 | struct stat cache_stat; |
3bfae75d | 675 | char name_buf[FC_MAX_FILE_LEN]; |
55c8fa4f | 676 | |
3bfae75d | 677 | /* First remove normal cache file. */ |
15d7bd0a PL |
678 | if (stat ((char *) cache_file, &cache_stat) == 0 && |
679 | unlink ((char *)cache_file) != 0) | |
3bfae75d PL |
680 | goto bail; |
681 | ||
682 | /* Next remove any applicable hashed files. */ | |
683 | fd = -1; collisions = 0; | |
684 | do | |
1178b569 | 685 | { |
3bfae75d PL |
686 | cache_hashed = FcDirCacheHashName (cache_file, collisions++); |
687 | if (!cache_hashed) | |
688 | goto bail; | |
689 | ||
690 | if (fd > 0) | |
691 | close (fd); | |
692 | fd = open(cache_hashed, O_RDONLY); | |
693 | if (fd == -1) | |
694 | { | |
695 | FcStrFree ((FcChar8 *)cache_file); | |
696 | return FcTrue; | |
697 | } | |
698 | ||
699 | FcCacheReadString (fd, name_buf, sizeof (name_buf)); | |
700 | if (!strlen(name_buf)) | |
701 | goto bail; | |
702 | } while (strcmp (name_buf, cache_file) != 0); | |
703 | ||
704 | FcStrFree ((FcChar8 *)cache_file); | |
705 | close (fd); | |
706 | ||
707 | if (stat ((char *) cache_hashed, &cache_stat) == 0 && | |
708 | unlink ((char *)cache_hashed) != 0) | |
709 | { | |
710 | FcStrFree ((FcChar8 *)cache_hashed); | |
711 | goto bail; | |
1178b569 | 712 | } |
55c8fa4f | 713 | |
3bfae75d | 714 | FcStrFree ((FcChar8 *)cache_hashed); |
1b7be377 | 715 | return FcTrue; |
3bfae75d PL |
716 | |
717 | bail: | |
718 | FcStrFree ((FcChar8 *)cache_file); | |
719 | return FcFalse; | |
1b7be377 PL |
720 | } |
721 | ||
4262e0b3 | 722 | static int |
1b7be377 PL |
723 | FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache, |
724 | FcStrList *list, FcFontSet * set) | |
4262e0b3 | 725 | { |
4262e0b3 PL |
726 | int ret = 0; |
727 | FcChar8 *dir; | |
728 | FcChar8 *file, *base; | |
729 | FcStrSet *subdirs; | |
730 | FcStrList *sublist; | |
731 | struct stat statb; | |
732 | ||
733 | /* | |
03a212e5 | 734 | * Read in the results from 'list'. |
4262e0b3 PL |
735 | */ |
736 | while ((dir = FcStrListNext (list))) | |
737 | { | |
9fad72ab PL |
738 | if (!FcConfigAcceptFilename (config, dir)) |
739 | continue; | |
740 | ||
4262e0b3 PL |
741 | /* freed below */ |
742 | file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1); | |
743 | if (!file) | |
744 | return FcFalse; | |
745 | ||
746 | strcpy ((char *) file, (char *) dir); | |
747 | strcat ((char *) file, "/"); | |
748 | base = file + strlen ((char *) file); | |
749 | ||
750 | subdirs = FcStrSetCreate (); | |
751 | if (!subdirs) | |
752 | { | |
753 | fprintf (stderr, "Can't create directory set\n"); | |
754 | ret++; | |
755 | free (file); | |
756 | continue; | |
757 | } | |
758 | ||
759 | if (access ((char *) dir, X_OK) < 0) | |
760 | { | |
761 | switch (errno) { | |
762 | case ENOENT: | |
763 | case ENOTDIR: | |
764 | case EACCES: | |
765 | break; | |
766 | default: | |
767 | fprintf (stderr, "\"%s\": ", dir); | |
768 | perror (""); | |
769 | ret++; | |
770 | } | |
771 | FcStrSetDestroy (subdirs); | |
772 | free (file); | |
773 | continue; | |
774 | } | |
775 | if (stat ((char *) dir, &statb) == -1) | |
776 | { | |
777 | fprintf (stderr, "\"%s\": ", dir); | |
778 | perror (""); | |
779 | FcStrSetDestroy (subdirs); | |
780 | ret++; | |
781 | free (file); | |
782 | continue; | |
783 | } | |
784 | if (!S_ISDIR (statb.st_mode)) | |
785 | { | |
786 | fprintf (stderr, "\"%s\": not a directory, skipping\n", dir); | |
787 | FcStrSetDestroy (subdirs); | |
788 | free (file); | |
789 | continue; | |
790 | } | |
2304e38f | 791 | if (!FcDirCacheValid (dir) || !FcDirCacheRead (set, subdirs, dir)) |
4262e0b3 | 792 | { |
1b7be377 | 793 | if (FcDebug () & FC_DBG_FONTSET) |
03a212e5 | 794 | printf ("cache scan dir %s\n", dir); |
2304e38f | 795 | |
1b7be377 PL |
796 | FcDirScanConfig (set, subdirs, cache, |
797 | config->blanks, dir, FcFalse, config); | |
4262e0b3 PL |
798 | } |
799 | sublist = FcStrListCreate (subdirs); | |
800 | FcStrSetDestroy (subdirs); | |
801 | if (!sublist) | |
802 | { | |
803 | fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir); | |
804 | ret++; | |
805 | free (file); | |
806 | continue; | |
807 | } | |
1b7be377 | 808 | ret += FcCacheReadDirs (config, cache, sublist, set); |
4262e0b3 PL |
809 | free (file); |
810 | } | |
811 | FcStrListDone (list); | |
812 | return ret; | |
813 | } | |
814 | ||
815 | FcFontSet * | |
1b7be377 | 816 | FcCacheRead (FcConfig *config, FcGlobalCache * cache) |
4262e0b3 PL |
817 | { |
818 | FcFontSet * s = FcFontSetCreate(); | |
819 | if (!s) | |
820 | return 0; | |
821 | ||
1b7be377 | 822 | if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s)) |
4262e0b3 PL |
823 | goto bail; |
824 | ||
825 | return s; | |
826 | ||
827 | bail: | |
828 | FcFontSetDestroy (s); | |
829 | return 0; | |
830 | } | |
831 | ||
ea44e218 PL |
832 | static const char bin2hex[] = { '0', '1', '2', '3', |
833 | '4', '5', '6', '7', | |
834 | '8', '9', 'a', 'b', | |
835 | 'c', 'd', 'e', 'f' }; | |
836 | ||
837 | static char * | |
838 | FcDirCacheHashName (char * cache_file, int collisions) | |
839 | { | |
840 | unsigned char hash[16], hex_hash[33]; | |
841 | char *cache_hashed; | |
842 | unsigned char uscore = '_'; | |
843 | int cnt, i; | |
844 | FcChar8 *tmp; | |
845 | struct MD5Context ctx; | |
846 | ||
847 | MD5Init (&ctx); | |
848 | MD5Update (&ctx, (unsigned char *)cache_file, strlen (cache_file)); | |
849 | ||
850 | for (i = 0; i < collisions; i++) | |
851 | MD5Update (&ctx, &uscore, 1); | |
852 | ||
853 | MD5Final (hash, &ctx); | |
854 | ||
855 | for (cnt = 0; cnt < 16; ++cnt) | |
856 | { | |
857 | hex_hash[2*cnt] = bin2hex[hash[cnt] >> 4]; | |
858 | hex_hash[2*cnt+1] = bin2hex[hash[cnt] & 0xf]; | |
859 | } | |
860 | hex_hash[32] = 0; | |
861 | ||
862 | tmp = FcStrPlus ((FcChar8 *)hex_hash, (FcChar8 *)FC_CACHE_SUFFIX); | |
863 | if (!tmp) | |
864 | return 0; | |
865 | ||
83b67390 | 866 | cache_hashed = (char *)FcStrPlus ((FcChar8 *)PKGCACHEDIR"/", tmp); |
ea44e218 PL |
867 | free (tmp); |
868 | ||
869 | return cache_hashed; | |
870 | } | |
871 | ||
872 | /* Opens the hashed name for cache_file. | |
873 | * This would fail in the unlikely event of a collision and subsequent | |
874 | * removal of the file which originally caused the collision. */ | |
875 | static int | |
876 | FcDirCacheOpen (char *cache_file) | |
877 | { | |
878 | int fd = -1, collisions = 0; | |
879 | char *cache_hashed; | |
880 | char name_buf[FC_MAX_FILE_LEN]; | |
881 | ||
ec760b17 PL |
882 | fd = open(cache_file, O_RDONLY); |
883 | if (fd != -1) | |
884 | return fd; | |
885 | ||
ea44e218 PL |
886 | do |
887 | { | |
888 | cache_hashed = FcDirCacheHashName (cache_file, collisions++); | |
889 | if (!cache_hashed) | |
890 | return -1; | |
891 | ||
892 | if (fd > 0) | |
893 | close (fd); | |
894 | fd = open(cache_hashed, O_RDONLY); | |
3bfae75d PL |
895 | FcStrFree ((FcChar8 *)cache_hashed); |
896 | ||
ea44e218 PL |
897 | if (fd == -1) |
898 | return -1; | |
899 | FcCacheReadString (fd, name_buf, sizeof (name_buf)); | |
900 | if (!strlen(name_buf)) | |
901 | goto bail; | |
902 | } while (strcmp (name_buf, cache_file) != 0); | |
903 | return fd; | |
904 | ||
905 | bail: | |
906 | close (fd); | |
907 | return -1; | |
908 | } | |
909 | ||
212c9f43 | 910 | /* read serialized state from the cache file */ |
2eb84374 | 911 | FcBool |
2304e38f | 912 | FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir) |
212c9f43 | 913 | { |
ea44e218 PL |
914 | char *cache_file; |
915 | int fd; | |
916 | char *current_arch_machine_name; | |
917 | char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE]; | |
918 | off_t current_arch_start = 0; | |
919 | char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1]; | |
212c9f43 | 920 | |
ea44e218 | 921 | cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
4262e0b3 | 922 | if (!cache_file) |
ea44e218 | 923 | return FcFalse; |
212c9f43 | 924 | |
ea44e218 PL |
925 | fd = FcDirCacheOpen (cache_file); |
926 | if (fd < 0) | |
927 | goto bail; | |
212c9f43 | 928 | |
ea44e218 PL |
929 | current_arch_machine_name = FcCacheMachineSignature(); |
930 | current_arch_start = FcCacheSkipToArch(fd, | |
c60ec7cc | 931 | current_arch_machine_name); |
212c9f43 | 932 | if (current_arch_start < 0) |
4262e0b3 | 933 | goto bail1; |
212c9f43 PL |
934 | |
935 | lseek (fd, current_arch_start, SEEK_SET); | |
eb0cf671 | 936 | if (FcCacheReadString (fd, candidate_arch_machine_name, |
212c9f43 | 937 | sizeof (candidate_arch_machine_name)) == 0) |
4262e0b3 | 938 | goto bail1; |
2304e38f PL |
939 | |
940 | while (strlen(FcCacheReadString (fd, subdirName, sizeof (subdirName))) > 0) | |
8245771d | 941 | FcStrSetAdd (dirs, (FcChar8 *)subdirName); |
2304e38f | 942 | |
e77c1718 | 943 | if (!FcDirCacheConsume (fd, (const char *)dir, set)) |
eb0cf671 PL |
944 | goto bail1; |
945 | ||
946 | close(fd); | |
947 | free (cache_file); | |
948 | return FcTrue; | |
949 | ||
950 | bail1: | |
2304e38f | 951 | close (fd); |
eb0cf671 PL |
952 | bail: |
953 | free (cache_file); | |
954 | return FcFalse; | |
955 | } | |
956 | ||
957 | static FcBool | |
e77c1718 | 958 | FcDirCacheConsume (int fd, const char * dir, FcFontSet *set) |
eb0cf671 PL |
959 | { |
960 | FcCache metadata; | |
961 | void * current_dir_block; | |
fd77c154 | 962 | off_t pos; |
212c9f43 | 963 | |
212c9f43 PL |
964 | read(fd, &metadata, sizeof(FcCache)); |
965 | if (metadata.magic != FC_CACHE_MAGIC) | |
eb0cf671 | 966 | return FcFalse; |
212c9f43 | 967 | |
2dbe7597 | 968 | if (!metadata.count) |
05a98eaf PL |
969 | { |
970 | pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)); | |
971 | lseek (fd, pos, SEEK_SET); | |
eb0cf671 | 972 | return FcTrue; |
05a98eaf | 973 | } |
2dbe7597 | 974 | |
fd77c154 | 975 | pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)); |
2dbe7597 PL |
976 | current_dir_block = mmap (0, metadata.count, |
977 | PROT_READ, MAP_SHARED, fd, pos); | |
c60ec7cc | 978 | lseek (fd, pos+metadata.count, SEEK_SET); |
2dbe7597 | 979 | if (current_dir_block == MAP_FAILED) |
eb0cf671 | 980 | return FcFalse; |
eb0cf671 | 981 | |
e77c1718 PL |
982 | FcCacheAddBankDir (metadata.bank, dir); |
983 | ||
b8948e85 PL |
984 | if (!FcFontSetUnserialize (&metadata, set, current_dir_block)) |
985 | return FcFalse; | |
986 | ||
212c9f43 | 987 | return FcTrue; |
eb0cf671 PL |
988 | } |
989 | ||
990 | static void * | |
991 | FcDirCacheProduce (FcFontSet *set, FcCache *metadata) | |
992 | { | |
993 | void * current_dir_block, * final_dir_block; | |
8245771d | 994 | static unsigned int rand_state = 0; |
8e351527 | 995 | int bank, needed_bytes_no_align; |
eb0cf671 PL |
996 | |
997 | if (!rand_state) | |
998 | rand_state = time(0L); | |
999 | bank = rand_r(&rand_state); | |
1000 | ||
1001 | while (FcCacheHaveBank(bank)) | |
1002 | bank = rand_r(&rand_state); | |
1003 | ||
1004 | memset (metadata, 0, sizeof(FcCache)); | |
1005 | FcFontSetNewBank(); | |
8e351527 PL |
1006 | needed_bytes_no_align = FcFontSetNeededBytes (set); |
1007 | metadata->count = needed_bytes_no_align + | |
7fd7221e | 1008 | FcFontSetNeededBytesAlign (); |
eb0cf671 PL |
1009 | metadata->magic = FC_CACHE_MAGIC; |
1010 | metadata->bank = bank; | |
1011 | ||
8e351527 PL |
1012 | if (!needed_bytes_no_align) /* not a failure, no fonts to write */ |
1013 | { | |
1014 | /* no, you don't really need to write any bytes at all. */ | |
1015 | metadata->count = 0; | |
eb0cf671 | 1016 | return 0; |
8e351527 | 1017 | } |
eb0cf671 PL |
1018 | |
1019 | current_dir_block = malloc (metadata->count); | |
1020 | if (!current_dir_block) | |
1021 | goto bail; | |
8e351527 PL |
1022 | // shut up valgrind |
1023 | memset (current_dir_block, 0, metadata->count); | |
eb0cf671 PL |
1024 | final_dir_block = FcFontSetDistributeBytes (metadata, current_dir_block); |
1025 | ||
8e351527 | 1026 | if ((void *)((char *)current_dir_block+metadata->count) < final_dir_block) |
eb0cf671 PL |
1027 | goto bail; |
1028 | ||
1029 | if (!FcFontSetSerialize (bank, set)) | |
1030 | goto bail; | |
1031 | ||
1032 | return current_dir_block; | |
212c9f43 | 1033 | |
4262e0b3 | 1034 | bail: |
eb0cf671 PL |
1035 | free (current_dir_block); |
1036 | return 0; | |
212c9f43 PL |
1037 | } |
1038 | ||
1039 | /* write serialized state to the cache file */ | |
1040 | FcBool | |
2304e38f | 1041 | FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir) |
212c9f43 | 1042 | { |
ea44e218 | 1043 | char *cache_file; |
3bfae75d | 1044 | char *cache_hashed; |
1d879de2 PL |
1045 | int fd, fd_orig, i, dirs_count; |
1046 | FcAtomic *atomic; | |
1047 | FcCache metadata; | |
1048 | off_t current_arch_start = 0, truncate_to; | |
ea44e218 PL |
1049 | char name_buf[FC_MAX_FILE_LEN]; |
1050 | int collisions; | |
8245771d | 1051 | |
1d879de2 | 1052 | char *current_arch_machine_name, * header; |
ea44e218 | 1053 | void *current_dir_block = 0; |
212c9f43 | 1054 | |
ea44e218 | 1055 | cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
4262e0b3 PL |
1056 | if (!cache_file) |
1057 | goto bail; | |
1058 | ||
ea44e218 PL |
1059 | /* Ensure that we're not trampling a cache for some other dir. */ |
1060 | /* This is slightly different from FcDirCacheOpen, since it | |
1061 | * needs the filename, not the file descriptor. */ | |
1062 | fd = -1; collisions = 0; | |
1063 | do | |
1064 | { | |
3bfae75d PL |
1065 | cache_hashed = FcDirCacheHashName (cache_file, collisions++); |
1066 | if (!cache_hashed) | |
ea44e218 PL |
1067 | goto bail0; |
1068 | ||
1069 | if (fd > 0) | |
1070 | close (fd); | |
3bfae75d | 1071 | fd = open(cache_hashed, O_RDONLY); |
ea44e218 PL |
1072 | if (fd == -1) |
1073 | break; | |
1074 | FcCacheReadString (fd, name_buf, sizeof (name_buf)); | |
1075 | close (fd); | |
1076 | ||
1077 | if (!strlen(name_buf)) | |
1078 | break; | |
1079 | ||
1080 | if (strcmp (name_buf, cache_file) != 0) | |
1081 | continue; | |
1082 | } while (0); | |
1083 | ||
eb0cf671 | 1084 | current_dir_block = FcDirCacheProduce (set, &metadata); |
212c9f43 | 1085 | |
a9698bed | 1086 | if (metadata.count && !current_dir_block) |
ea44e218 | 1087 | goto bail1; |
212c9f43 | 1088 | |
4262e0b3 PL |
1089 | if (FcDebug () & FC_DBG_CACHE) |
1090 | printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file); | |
1091 | ||
3bfae75d | 1092 | atomic = FcAtomicCreate ((FcChar8 *)cache_hashed); |
1d879de2 | 1093 | if (!atomic) |
ea44e218 | 1094 | goto bail1; |
212c9f43 | 1095 | |
1d879de2 | 1096 | if (!FcAtomicLock (atomic)) |
ec760b17 PL |
1097 | { |
1098 | /* Now try rewriting the original version of the file. */ | |
1099 | FcAtomicDestroy (atomic); | |
1d879de2 | 1100 | |
3bfae75d | 1101 | atomic = FcAtomicCreate ((FcChar8 *)cache_file); |
ec760b17 PL |
1102 | fd_orig = open (cache_file, O_RDONLY); |
1103 | if (fd_orig == -1) | |
1104 | fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY); | |
1105 | ||
1106 | fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666); | |
1107 | if (fd == -1) | |
1108 | goto bail2; | |
1109 | } | |
1110 | ||
1111 | /* In all cases, try opening the real location of the cache file first. */ | |
1112 | /* (even if that's not atomic.) */ | |
1113 | fd_orig = open (cache_file, O_RDONLY); | |
1114 | if (fd_orig == -1) | |
1115 | fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY); | |
1d879de2 PL |
1116 | |
1117 | fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666); | |
1118 | if (fd == -1) | |
ec760b17 | 1119 | goto bail3; |
ea44e218 PL |
1120 | |
1121 | FcCacheWriteString (fd, cache_file); | |
1d879de2 | 1122 | |
eb0cf671 | 1123 | current_arch_machine_name = FcCacheMachineSignature (); |
1d879de2 PL |
1124 | current_arch_start = 0; |
1125 | ||
1126 | if (fd_orig != -1) | |
1127 | current_arch_start = | |
c60ec7cc | 1128 | FcCacheSkipToArch(fd_orig, current_arch_machine_name); |
1d879de2 | 1129 | |
212c9f43 | 1130 | if (current_arch_start < 0) |
649cc361 | 1131 | current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END)); |
212c9f43 | 1132 | |
1d879de2 | 1133 | if (fd_orig != -1 && !FcCacheCopyOld(fd, fd_orig, current_arch_start)) |
ea44e218 | 1134 | goto bail4; |
1d879de2 PL |
1135 | |
1136 | if (fd_orig != -1) | |
1137 | close (fd_orig); | |
212c9f43 PL |
1138 | |
1139 | current_arch_start = lseek(fd, 0, SEEK_CUR); | |
1140 | if (ftruncate (fd, current_arch_start) == -1) | |
ea44e218 | 1141 | goto bail4; |
212c9f43 | 1142 | |
6aee8c6f PL |
1143 | /* allocate space for subdir names in this block */ |
1144 | dirs_count = 0; | |
1145 | for (i = 0; i < dirs->size; i++) | |
1146 | dirs_count += strlen((char *)dirs->strs[i]) + 1; | |
1147 | dirs_count ++; | |
1148 | ||
212c9f43 | 1149 | /* now write the address of the next offset */ |
6aee8c6f | 1150 | truncate_to = FcCacheNextOffset (FcCacheNextOffset (current_arch_start + sizeof (FcCache) + dirs_count) + metadata.count) - current_arch_start; |
2dbe7597 | 1151 | header = malloc (10 + strlen (current_arch_machine_name)); |
eb0cf671 | 1152 | if (!header) |
ea44e218 | 1153 | goto bail4; |
2dbe7597 PL |
1154 | sprintf (header, "%8x ", (int)truncate_to); |
1155 | strcat (header, current_arch_machine_name); | |
eb0cf671 | 1156 | if (!FcCacheWriteString (fd, header)) |
ea44e218 | 1157 | goto bail5; |
212c9f43 | 1158 | |
2304e38f | 1159 | for (i = 0; i < dirs->size; i++) |
8245771d | 1160 | FcCacheWriteString (fd, (char *)dirs->strs[i]); |
2304e38f PL |
1161 | FcCacheWriteString (fd, ""); |
1162 | ||
4262e0b3 | 1163 | write (fd, &metadata, sizeof(FcCache)); |
a9698bed PL |
1164 | if (metadata.count) |
1165 | { | |
1166 | lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_END)), SEEK_SET); | |
1167 | write (fd, current_dir_block, metadata.count); | |
1168 | free (current_dir_block); | |
1169 | } | |
4262e0b3 | 1170 | |
2dbe7597 | 1171 | /* this actually serves to pad out the cache file, if needed */ |
212c9f43 | 1172 | if (ftruncate (fd, current_arch_start + truncate_to) == -1) |
ea44e218 | 1173 | goto bail5; |
212c9f43 PL |
1174 | |
1175 | close(fd); | |
1d879de2 | 1176 | if (!FcAtomicReplaceOrig(atomic)) |
ea44e218 | 1177 | goto bail5; |
3bfae75d | 1178 | FcStrFree ((FcChar8 *)cache_hashed); |
1d879de2 PL |
1179 | FcAtomicUnlock (atomic); |
1180 | FcAtomicDestroy (atomic); | |
212c9f43 PL |
1181 | return FcTrue; |
1182 | ||
ea44e218 | 1183 | bail5: |
0230c9f8 | 1184 | free (header); |
ea44e218 | 1185 | bail4: |
1d879de2 | 1186 | close (fd); |
ea44e218 | 1187 | bail3: |
1d879de2 | 1188 | FcAtomicUnlock (atomic); |
ea44e218 | 1189 | bail2: |
1d879de2 | 1190 | FcAtomicDestroy (atomic); |
ea44e218 | 1191 | bail1: |
3bfae75d | 1192 | FcStrFree ((FcChar8 *)cache_hashed); |
eb0cf671 | 1193 | bail0: |
8245771d | 1194 | unlink ((char *)cache_file); |
4262e0b3 | 1195 | free (cache_file); |
1d879de2 PL |
1196 | if (current_dir_block) |
1197 | free (current_dir_block); | |
1198 | bail: | |
212c9f43 PL |
1199 | return FcFalse; |
1200 | } | |
1201 | ||
2dbe7597 | 1202 | static char * |
eb0cf671 | 1203 | FcCacheMachineSignature () |
2dbe7597 PL |
1204 | { |
1205 | static char buf[MACHINE_SIGNATURE_SIZE]; | |
7fd7221e | 1206 | int32_t magic = ENDIAN_TEST; |
2dbe7597 PL |
1207 | char * m = (char *)&magic; |
1208 | ||
1209 | sprintf (buf, "%2x%2x%2x%2x " | |
1210 | "%4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x " | |
7fd7221e | 1211 | "%4x %4x %4x %4x %4x %4x %4x %4x\n", |
2dbe7597 | 1212 | m[0], m[1], m[2], m[3], |
cd310911 PL |
1213 | (unsigned int)sizeof (char), |
1214 | (unsigned int)sizeof (char *), | |
1215 | (unsigned int)sizeof (int), | |
1216 | (unsigned int)sizeof (FcPattern), | |
1217 | (unsigned int)sizeof (FcPatternEltPtr), | |
1218 | (unsigned int)sizeof (struct _FcPatternElt *), | |
1219 | (unsigned int)sizeof (FcPatternElt), | |
1220 | (unsigned int)sizeof (FcObjectPtr), | |
1221 | (unsigned int)sizeof (FcValueListPtr), | |
1222 | (unsigned int)sizeof (FcValue), | |
1223 | (unsigned int)sizeof (FcValueBinding), | |
1224 | (unsigned int)sizeof (struct _FcValueList *), | |
1225 | (unsigned int)sizeof (FcCharSet), | |
1226 | (unsigned int)sizeof (FcCharLeaf **), | |
1227 | (unsigned int)sizeof (FcChar16 *), | |
1228 | (unsigned int)sizeof (FcChar16), | |
1229 | (unsigned int)sizeof (FcCharLeaf), | |
1230 | (unsigned int)sizeof (FcChar32), | |
7fd7221e PL |
1231 | (unsigned int)sizeof (FcCache), |
1232 | (unsigned int)sysconf(_SC_PAGESIZE)); | |
2dbe7597 PL |
1233 | |
1234 | return buf; | |
1235 | } | |
1236 | ||
4262e0b3 | 1237 | static int banks_ptr = 0, banks_alloc = 0; |
b8948e85 | 1238 | int * _fcBankId = 0, * _fcBankIdx = 0; |
e77c1718 | 1239 | static const char ** bankDirs = 0; |
4262e0b3 | 1240 | |
eb0cf671 | 1241 | static FcBool |
4262e0b3 PL |
1242 | FcCacheHaveBank (int bank) |
1243 | { | |
1244 | int i; | |
1245 | ||
1246 | if (bank < FC_BANK_FIRST) | |
1247 | return FcTrue; | |
1248 | ||
1249 | for (i = 0; i < banks_ptr; i++) | |
b8948e85 | 1250 | if (_fcBankId[i] == bank) |
4262e0b3 PL |
1251 | return FcTrue; |
1252 | ||
1253 | return FcFalse; | |
1254 | } | |
1255 | ||
1256 | int | |
b8948e85 | 1257 | FcCacheBankToIndexMTF (int bank) |
4262e0b3 | 1258 | { |
751932dd | 1259 | int i, j; |
4262e0b3 PL |
1260 | |
1261 | for (i = 0; i < banks_ptr; i++) | |
b8948e85 | 1262 | if (_fcBankId[_fcBankIdx[i]] == bank) |
751932dd | 1263 | { |
b8948e85 | 1264 | int t = _fcBankIdx[i]; |
751932dd PL |
1265 | |
1266 | for (j = i; j > 0; j--) | |
b8948e85 PL |
1267 | _fcBankIdx[j] = _fcBankIdx[j-1]; |
1268 | _fcBankIdx[0] = t; | |
751932dd PL |
1269 | return t; |
1270 | } | |
4262e0b3 | 1271 | |
2dbe7597 | 1272 | if (banks_ptr >= banks_alloc) |
4262e0b3 | 1273 | { |
751932dd | 1274 | int * b, * bidx; |
e77c1718 PL |
1275 | const char ** bds; |
1276 | ||
b8948e85 | 1277 | b = realloc (_fcBankId, (banks_alloc + 4) * sizeof(int)); |
4262e0b3 PL |
1278 | if (!b) |
1279 | return -1; | |
b8948e85 | 1280 | _fcBankId = b; |
751932dd | 1281 | |
b8948e85 | 1282 | bidx = realloc (_fcBankIdx, (banks_alloc + 4) * sizeof(int)); |
751932dd PL |
1283 | if (!bidx) |
1284 | return -1; | |
b8948e85 | 1285 | _fcBankIdx = bidx; |
751932dd | 1286 | |
e77c1718 PL |
1287 | bds = realloc (bankDirs, (banks_alloc + 4) * sizeof (char *)); |
1288 | if (!bds) | |
1289 | return -1; | |
1290 | bankDirs = bds; | |
1291 | ||
4262e0b3 PL |
1292 | banks_alloc += 4; |
1293 | } | |
1294 | ||
1295 | i = banks_ptr++; | |
b8948e85 PL |
1296 | _fcBankId[i] = bank; |
1297 | _fcBankIdx[i] = i; | |
4262e0b3 PL |
1298 | return i; |
1299 | } | |
e77c1718 PL |
1300 | |
1301 | static void | |
1302 | FcCacheAddBankDir (int bank, const char * dir) | |
1303 | { | |
b8948e85 | 1304 | int bi = FcCacheBankToIndexMTF (bank); |
e77c1718 PL |
1305 | |
1306 | if (bi < 0) | |
1307 | return; | |
1308 | ||
1309 | bankDirs[bi] = (const char *)FcStrCopy ((FcChar8 *)dir); | |
1310 | } | |
1311 | ||
1312 | const char * | |
1313 | FcCacheFindBankDir (int bank) | |
1314 | { | |
1315 | int bi = FcCacheBankToIndex (bank); | |
1316 | return bankDirs[bi]; | |
1317 | } | |
1318 | ||
ea44e218 PL |
1319 | /* |
1320 | * This code implements the MD5 message-digest algorithm. | |
1321 | * The algorithm is due to Ron Rivest. This code was | |
1322 | * written by Colin Plumb in 1993, no copyright is claimed. | |
1323 | * This code is in the public domain; do with it what you wish. | |
1324 | * | |
1325 | * Equivalent code is available from RSA Data Security, Inc. | |
1326 | * This code has been tested against that, and is equivalent, | |
1327 | * except that you don't need to include two pages of legalese | |
1328 | * with every copy. | |
1329 | * | |
1330 | * To compute the message digest of a chunk of bytes, declare an | |
1331 | * MD5Context structure, pass it to MD5Init, call MD5Update as | |
1332 | * needed on buffers full of bytes, and then call MD5Final, which | |
1333 | * will fill a supplied 16-byte array with the digest. | |
1334 | */ | |
1335 | ||
1336 | #ifndef HIGHFIRST | |
1337 | #define byteReverse(buf, len) /* Nothing */ | |
1338 | #else | |
1339 | /* | |
1340 | * Note: this code is harmless on little-endian machines. | |
1341 | */ | |
1342 | void byteReverse(unsigned char *buf, unsigned longs) | |
1343 | { | |
1344 | FcChar32 t; | |
1345 | do { | |
1346 | t = (FcChar32) ((unsigned) buf[3] << 8 | buf[2]) << 16 | | |
1347 | ((unsigned) buf[1] << 8 | buf[0]); | |
1348 | *(FcChar32 *) buf = t; | |
1349 | buf += 4; | |
1350 | } while (--longs); | |
1351 | } | |
1352 | #endif | |
1353 | ||
1354 | /* | |
1355 | * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious | |
1356 | * initialization constants. | |
1357 | */ | |
1358 | static void MD5Init(struct MD5Context *ctx) | |
1359 | { | |
1360 | ctx->buf[0] = 0x67452301; | |
1361 | ctx->buf[1] = 0xefcdab89; | |
1362 | ctx->buf[2] = 0x98badcfe; | |
1363 | ctx->buf[3] = 0x10325476; | |
1364 | ||
1365 | ctx->bits[0] = 0; | |
1366 | ctx->bits[1] = 0; | |
1367 | } | |
1368 | ||
1369 | /* | |
1370 | * Update context to reflect the concatenation of another buffer full | |
1371 | * of bytes. | |
1372 | */ | |
1373 | static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len) | |
1374 | { | |
1375 | FcChar32 t; | |
1376 | ||
1377 | /* Update bitcount */ | |
1378 | ||
1379 | t = ctx->bits[0]; | |
1380 | if ((ctx->bits[0] = t + ((FcChar32) len << 3)) < t) | |
1381 | ctx->bits[1]++; /* Carry from low to high */ | |
1382 | ctx->bits[1] += len >> 29; | |
1383 | ||
1384 | t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ | |
1385 | ||
1386 | /* Handle any leading odd-sized chunks */ | |
1387 | ||
1388 | if (t) { | |
1389 | unsigned char *p = (unsigned char *) ctx->in + t; | |
1390 | ||
1391 | t = 64 - t; | |
1392 | if (len < t) { | |
1393 | memcpy(p, buf, len); | |
1394 | return; | |
1395 | } | |
1396 | memcpy(p, buf, t); | |
1397 | byteReverse(ctx->in, 16); | |
1398 | MD5Transform(ctx->buf, (FcChar32 *) ctx->in); | |
1399 | buf += t; | |
1400 | len -= t; | |
1401 | } | |
1402 | /* Process data in 64-byte chunks */ | |
1403 | ||
1404 | while (len >= 64) { | |
1405 | memcpy(ctx->in, buf, 64); | |
1406 | byteReverse(ctx->in, 16); | |
1407 | MD5Transform(ctx->buf, (FcChar32 *) ctx->in); | |
1408 | buf += 64; | |
1409 | len -= 64; | |
1410 | } | |
1411 | ||
1412 | /* Handle any remaining bytes of data. */ | |
1413 | ||
1414 | memcpy(ctx->in, buf, len); | |
1415 | } | |
1416 | ||
1417 | /* | |
1418 | * Final wrapup - pad to 64-byte boundary with the bit pattern | |
1419 | * 1 0* (64-bit count of bits processed, MSB-first) | |
1420 | */ | |
1421 | static void MD5Final(unsigned char digest[16], struct MD5Context *ctx) | |
1422 | { | |
1423 | unsigned count; | |
1424 | unsigned char *p; | |
1425 | ||
1426 | /* Compute number of bytes mod 64 */ | |
1427 | count = (ctx->bits[0] >> 3) & 0x3F; | |
1428 | ||
1429 | /* Set the first char of padding to 0x80. This is safe since there is | |
1430 | always at least one byte free */ | |
1431 | p = ctx->in + count; | |
1432 | *p++ = 0x80; | |
1433 | ||
1434 | /* Bytes of padding needed to make 64 bytes */ | |
1435 | count = 64 - 1 - count; | |
1436 | ||
1437 | /* Pad out to 56 mod 64 */ | |
1438 | if (count < 8) { | |
1439 | /* Two lots of padding: Pad the first block to 64 bytes */ | |
1440 | memset(p, 0, count); | |
1441 | byteReverse(ctx->in, 16); | |
1442 | MD5Transform(ctx->buf, (FcChar32 *) ctx->in); | |
1443 | ||
1444 | /* Now fill the next block with 56 bytes */ | |
1445 | memset(ctx->in, 0, 56); | |
1446 | } else { | |
1447 | /* Pad block to 56 bytes */ | |
1448 | memset(p, 0, count - 8); | |
1449 | } | |
1450 | byteReverse(ctx->in, 14); | |
1451 | ||
1452 | /* Append length in bits and transform */ | |
1453 | ((FcChar32 *) ctx->in)[14] = ctx->bits[0]; | |
1454 | ((FcChar32 *) ctx->in)[15] = ctx->bits[1]; | |
1455 | ||
1456 | MD5Transform(ctx->buf, (FcChar32 *) ctx->in); | |
1457 | byteReverse((unsigned char *) ctx->buf, 4); | |
1458 | memcpy(digest, ctx->buf, 16); | |
1459 | memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */ | |
1460 | } | |
1461 | ||
1462 | ||
1463 | /* The four core functions - F1 is optimized somewhat */ | |
1464 | ||
1465 | /* #define F1(x, y, z) (x & y | ~x & z) */ | |
1466 | #define F1(x, y, z) (z ^ (x & (y ^ z))) | |
1467 | #define F2(x, y, z) F1(z, x, y) | |
1468 | #define F3(x, y, z) (x ^ y ^ z) | |
1469 | #define F4(x, y, z) (y ^ (x | ~z)) | |
1470 | ||
1471 | /* This is the central step in the MD5 algorithm. */ | |
1472 | #define MD5STEP(f, w, x, y, z, data, s) \ | |
1473 | ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) | |
1474 | ||
1475 | /* | |
1476 | * The core of the MD5 algorithm, this alters an existing MD5 hash to | |
1477 | * reflect the addition of 16 longwords of new data. MD5Update blocks | |
1478 | * the data and converts bytes into longwords for this routine. | |
1479 | */ | |
1480 | static void MD5Transform(FcChar32 buf[4], FcChar32 in[16]) | |
1481 | { | |
1482 | register FcChar32 a, b, c, d; | |
1483 | ||
1484 | a = buf[0]; | |
1485 | b = buf[1]; | |
1486 | c = buf[2]; | |
1487 | d = buf[3]; | |
1488 | ||
1489 | MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); | |
1490 | MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); | |
1491 | MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); | |
1492 | MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); | |
1493 | MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); | |
1494 | MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); | |
1495 | MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); | |
1496 | MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); | |
1497 | MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); | |
1498 | MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); | |
1499 | MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); | |
1500 | MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); | |
1501 | MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); | |
1502 | MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); | |
1503 | MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); | |
1504 | MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); | |
1505 | ||
1506 | MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); | |
1507 | MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); | |
1508 | MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); | |
1509 | MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); | |
1510 | MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); | |
1511 | MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); | |
1512 | MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); | |
1513 | MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); | |
1514 | MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); | |
1515 | MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); | |
1516 | MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); | |
1517 | MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); | |
1518 | MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); | |
1519 | MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); | |
1520 | MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); | |
1521 | MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); | |
1522 | ||
1523 | MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); | |
1524 | MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); | |
1525 | MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); | |
1526 | MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); | |
1527 | MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); | |
1528 | MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); | |
1529 | MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); | |
1530 | MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); | |
1531 | MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); | |
1532 | MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); | |
1533 | MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); | |
1534 | MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); | |
1535 | MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); | |
1536 | MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); | |
1537 | MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); | |
1538 | MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); | |
1539 | ||
1540 | MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); | |
1541 | MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); | |
1542 | MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); | |
1543 | MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); | |
1544 | MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); | |
1545 | MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); | |
1546 | MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); | |
1547 | MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); | |
1548 | MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); | |
1549 | MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); | |
1550 | MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); | |
1551 | MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); | |
1552 | MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); | |
1553 | MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); | |
1554 | MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); | |
1555 | MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); | |
1556 | ||
1557 | buf[0] += a; | |
1558 | buf[1] += b; | |
1559 | buf[2] += c; | |
1560 | buf[3] += d; | |
1561 | } |