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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Large (and important) sections of this file were adapted from | |
24 | * ROX-Filer source code, Copyright (C) 2003, the ROX-Filer team, | |
25 | * originally licensed under the GPL v2 or greater (as above). | |
26 | * | |
27 | */ | |
28 | ||
29 | #include <stdlib.h> | |
30 | #include <sys/stat.h> | |
31 | #include <errno.h> | |
32 | #include <string.h> | |
33 | #include "viking.h" | |
34 | #include "thumbnails.h" | |
35 | #include "thumbnails_pixbuf.h" | |
36 | ||
37 | #ifdef __CYGWIN__ | |
38 | #ifdef __CYGWIN_USE_BIG_TYPES__ | |
39 | #define ST_SIZE_FMT "%lld" | |
40 | #else | |
41 | #define ST_SIZE_FMT "%ld" | |
42 | #endif | |
43 | #else | |
44 | /* FIXME -- on some systems this may need to me "lld", see ROX-Filer code */ | |
45 | #define ST_SIZE_FMT "%ld" | |
46 | #endif | |
47 | ||
48 | #undef MIN /* quit yer whining, gcc */ | |
49 | #undef MAX | |
50 | #include <sys/param.h> /* for realpath() */ | |
51 | ||
52 | #ifdef WINDOWS | |
53 | #define HOME_DIR "C:\\VIKING" | |
54 | #define THUMB_DIR "\\THUMBNAILS\\" /* viking maps default viking\maps */ | |
55 | #define THUMB_SUB_DIR "normal\\" | |
56 | #define mkdir(a,b) mkdir(a) | |
57 | #define MAX(a,b) (((a)>(b))?(a):(b)) | |
58 | #define realpath(X,Y) _fullpath(Y,X,MAX_PATH) | |
59 | ||
60 | #else | |
61 | #define HOME_DIR g_get_home_dir() | |
62 | #define THUMB_DIR "/.thumbnails/" | |
63 | #define THUMB_SUB_DIR "normal/" | |
64 | #endif | |
65 | ||
66 | #define PIXMAP_THUMB_SIZE 128 | |
67 | ||
68 | static char *md5_hash(const char *message); | |
69 | static char *pathdup(const char *path); | |
70 | static GdkPixbuf *save_thumbnail(const char *pathname, GdkPixbuf *full); | |
71 | static GdkPixbuf *child_create_thumbnail(const gchar *path); | |
72 | ||
73 | gboolean a_thumbnails_exists ( const gchar *filename ) | |
74 | { | |
75 | GdkPixbuf *pixbuf = a_thumbnails_get(filename); | |
76 | if ( pixbuf ) | |
77 | { | |
78 | g_object_unref ( G_OBJECT ( pixbuf ) ); | |
79 | return TRUE; | |
80 | } | |
81 | return FALSE; | |
82 | } | |
83 | ||
84 | GdkPixbuf *a_thumbnails_get_default () | |
85 | { | |
86 | return gdk_pixbuf_from_pixdata ( &tnnyl_pixbuf, FALSE, NULL ); | |
87 | } | |
88 | ||
89 | /* filename must be absolute. you could have a function to make sure it exists and absolutize it */ | |
90 | ||
91 | void a_thumbnails_create(const gchar *filename) | |
92 | { | |
93 | GdkPixbuf *pixbuf = a_thumbnails_get(filename); | |
94 | ||
95 | if ( ! pixbuf ) | |
96 | pixbuf = child_create_thumbnail(filename); | |
97 | ||
98 | if ( pixbuf ) | |
99 | g_object_unref ( G_OBJECT ( pixbuf ) ); | |
100 | } | |
101 | ||
102 | GdkPixbuf *a_thumbnails_scale_pixbuf(GdkPixbuf *src, int max_w, int max_h) | |
103 | { | |
104 | int w, h; | |
105 | ||
106 | w = gdk_pixbuf_get_width(src); | |
107 | h = gdk_pixbuf_get_height(src); | |
108 | ||
109 | if (w <= max_w && h <= max_h) | |
110 | { | |
111 | gdk_pixbuf_ref(src); | |
112 | return src; | |
113 | } | |
114 | else | |
115 | { | |
116 | float scale_x = ((float) w) / max_w; | |
117 | float scale_y = ((float) h) / max_h; | |
118 | float scale = MAX(scale_x, scale_y); | |
119 | int dest_w = w / scale; | |
120 | int dest_h = h / scale; | |
121 | ||
122 | return gdk_pixbuf_scale_simple(src, | |
123 | MAX(dest_w, 1), | |
124 | MAX(dest_h, 1), | |
125 | GDK_INTERP_BILINEAR); | |
126 | } | |
127 | } | |
128 | ||
129 | static GdkPixbuf *child_create_thumbnail(const gchar *path) | |
130 | { | |
131 | GdkPixbuf *image; | |
132 | ||
133 | image = gdk_pixbuf_new_from_file(path, NULL); | |
134 | ||
135 | if (image) | |
136 | { | |
137 | GdkPixbuf *thumb = save_thumbnail(path, image); | |
138 | gdk_pixbuf_unref ( image ); | |
139 | return thumb; | |
140 | } | |
141 | ||
142 | return NULL; | |
143 | } | |
144 | ||
145 | static GdkPixbuf *save_thumbnail(const char *pathname, GdkPixbuf *full) | |
146 | { | |
147 | struct stat info; | |
148 | gchar *path; | |
149 | int original_width, original_height; | |
150 | GString *to; | |
151 | char *md5, *swidth, *sheight, *ssize, *smtime, *uri; | |
152 | mode_t old_mask; | |
153 | int name_len; | |
154 | GdkPixbuf *thumb; | |
155 | ||
156 | if (stat(pathname, &info) != 0) | |
157 | return NULL; | |
158 | ||
159 | thumb = a_thumbnails_scale_pixbuf(full, PIXMAP_THUMB_SIZE, PIXMAP_THUMB_SIZE); | |
160 | ||
161 | original_width = gdk_pixbuf_get_width(full); | |
162 | original_height = gdk_pixbuf_get_height(full); | |
163 | ||
164 | ||
165 | swidth = g_strdup_printf("%d", original_width); | |
166 | sheight = g_strdup_printf("%d", original_height); | |
167 | ssize = g_strdup_printf(ST_SIZE_FMT, info.st_size); | |
168 | smtime = g_strdup_printf("%ld", (long) info.st_mtime); | |
169 | ||
170 | path = pathdup(pathname); | |
171 | uri = g_strconcat("file://", path, NULL); | |
172 | md5 = md5_hash(uri); | |
173 | g_free(path); | |
174 | ||
175 | to = g_string_new(HOME_DIR); | |
176 | #ifndef WINDOWS | |
177 | mkdir(to->str, 0700); | |
178 | #endif | |
179 | g_string_append(to, THUMB_DIR); | |
180 | mkdir(to->str, 0700); | |
181 | g_string_append(to, THUMB_SUB_DIR); | |
182 | mkdir(to->str, 0700); | |
183 | g_string_append(to, md5); | |
184 | name_len = to->len + 4; /* Truncate to this length when renaming */ | |
185 | #ifdef WINDOWS | |
186 | g_string_append_printf(to, ".png.Viking"); | |
187 | #else | |
188 | g_string_append_printf(to, ".png.Viking-%ld", (long) getpid()); | |
189 | #endif | |
190 | ||
191 | g_free(md5); | |
192 | ||
193 | old_mask = umask(0077); | |
194 | gdk_pixbuf_save(thumb, to->str, "png", NULL, | |
195 | "tEXt::Thumb::Image::Width", swidth, | |
196 | "tEXt::Thumb::Image::Height", sheight, | |
197 | "tEXt::Thumb::Size", ssize, | |
198 | "tEXt::Thumb::MTime", smtime, | |
199 | "tEXt::Thumb::URI", uri, | |
200 | "tEXt::Software", PROJECT, | |
201 | NULL); | |
202 | umask(old_mask); | |
203 | ||
204 | /* We create the file ###.png.ROX-Filer-PID and rename it to avoid | |
205 | * a race condition if two programs create the same thumb at | |
206 | * once. | |
207 | */ | |
208 | { | |
209 | gchar *final; | |
210 | ||
211 | final = g_strndup(to->str, name_len); | |
212 | if (rename(to->str, final)) | |
213 | { | |
214 | g_warning("Failed to rename '%s' to '%s': %s", | |
215 | to->str, final, g_strerror(errno)); | |
216 | g_object_unref ( G_OBJECT(thumb) ); | |
217 | thumb = NULL; /* return NULL */ | |
218 | } | |
219 | ||
220 | g_free(final); | |
221 | } | |
222 | ||
223 | g_string_free(to, TRUE); | |
224 | g_free(swidth); | |
225 | g_free(sheight); | |
226 | g_free(ssize); | |
227 | g_free(smtime); | |
228 | g_free(uri); | |
229 | ||
230 | return thumb; | |
231 | } | |
232 | ||
233 | ||
234 | GdkPixbuf *a_thumbnails_get(const gchar *pathname) | |
235 | { | |
236 | GdkPixbuf *thumb = NULL; | |
237 | char *thumb_path, *md5, *uri, *path; | |
238 | const char *ssize, *smtime; | |
239 | struct stat info; | |
240 | ||
241 | path = pathdup(pathname); | |
242 | uri = g_strconcat("file://", path, NULL); | |
243 | md5 = md5_hash(uri); | |
244 | g_free(uri); | |
245 | ||
246 | thumb_path = g_strdup_printf("%s%s%s%s.png", HOME_DIR, THUMB_DIR, THUMB_SUB_DIR, md5); | |
247 | ||
248 | g_free(md5); | |
249 | ||
250 | thumb = gdk_pixbuf_new_from_file(thumb_path, NULL); | |
251 | if (!thumb) | |
252 | goto err; | |
253 | ||
254 | /* Note that these don't need freeing... */ | |
255 | ssize = gdk_pixbuf_get_option(thumb, "tEXt::Thumb::Size"); | |
256 | if (!ssize) | |
257 | goto err; | |
258 | ||
259 | smtime = gdk_pixbuf_get_option(thumb, "tEXt::Thumb::MTime"); | |
260 | if (!smtime) | |
261 | goto err; | |
262 | ||
263 | if (stat(path, &info) != 0) | |
264 | goto err; | |
265 | ||
266 | if (info.st_mtime != atol(smtime) || info.st_size != atol(ssize)) | |
267 | goto err; | |
268 | ||
269 | goto out; | |
270 | err: | |
271 | if (thumb) | |
272 | gdk_pixbuf_unref(thumb); | |
273 | thumb = NULL; | |
274 | out: | |
275 | g_free(path); | |
276 | g_free(thumb_path); | |
277 | return thumb; | |
278 | } | |
279 | ||
280 | /* pathdup() stuff */ | |
281 | ||
282 | static char *pathdup(const char *path) | |
283 | { | |
284 | char real[MAXPATHLEN]; | |
285 | ||
286 | g_return_val_if_fail(path != NULL, NULL); | |
287 | ||
288 | if (realpath(path, real)) | |
289 | return g_strdup(real); | |
290 | ||
291 | return g_strdup(path); | |
292 | } | |
293 | ||
294 | /* | |
295 | * This code implements the MD5 message-digest algorithm. | |
296 | * The algorithm is due to Ron Rivest. The original code was | |
297 | * written by Colin Plumb in 1993, and put in the public domain. | |
298 | * | |
299 | * Modified to use glib datatypes. Put under GPL to simplify | |
300 | * licensing for ROX-Filer. Taken from Debian's dpkg package. | |
301 | * | |
302 | */ | |
303 | ||
304 | #define md5byte unsigned char | |
305 | ||
306 | typedef struct _MD5Context MD5Context; | |
307 | ||
308 | struct _MD5Context { | |
309 | guint32 buf[4]; | |
310 | guint32 bytes[2]; | |
311 | guint32 in[16]; | |
312 | }; | |
313 | ||
314 | static void MD5Init(MD5Context *ctx); | |
315 | static void MD5Update(MD5Context *ctx, md5byte const *buf, unsigned len); | |
316 | static char *MD5Final(MD5Context *ctx); | |
317 | static void MD5Transform(guint32 buf[4], guint32 const in[16]); | |
318 | ||
319 | #if G_BYTE_ORDER == G_BIG_ENDIAN | |
320 | static void byteSwap(guint32 *buf, unsigned words) | |
321 | { | |
322 | md5byte *p = (md5byte *)buf; | |
323 | ||
324 | do { | |
325 | *buf++ = (guint32)((unsigned)p[3] << 8 | p[2]) << 16 | | |
326 | ((unsigned)p[1] << 8 | p[0]); | |
327 | p += 4; | |
328 | } while (--words); | |
329 | } | |
330 | #else | |
331 | #define byteSwap(buf,words) | |
332 | #endif | |
333 | ||
334 | /* | |
335 | * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious | |
336 | * initialization constants. | |
337 | */ | |
338 | static void MD5Init(MD5Context *ctx) | |
339 | { | |
340 | ctx->buf[0] = 0x67452301; | |
341 | ctx->buf[1] = 0xefcdab89; | |
342 | ctx->buf[2] = 0x98badcfe; | |
343 | ctx->buf[3] = 0x10325476; | |
344 | ||
345 | ctx->bytes[0] = 0; | |
346 | ctx->bytes[1] = 0; | |
347 | } | |
348 | ||
349 | /* | |
350 | * Update context to reflect the concatenation of another buffer full | |
351 | * of bytes. | |
352 | */ | |
353 | static void MD5Update(MD5Context *ctx, md5byte const *buf, unsigned len) | |
354 | { | |
355 | guint32 t; | |
356 | ||
357 | /* Update byte count */ | |
358 | ||
359 | t = ctx->bytes[0]; | |
360 | if ((ctx->bytes[0] = t + len) < t) | |
361 | ctx->bytes[1]++; /* Carry from low to high */ | |
362 | ||
363 | t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */ | |
364 | if (t > len) { | |
365 | memcpy((md5byte *)ctx->in + 64 - t, buf, len); | |
366 | return; | |
367 | } | |
368 | /* First chunk is an odd size */ | |
369 | memcpy((md5byte *)ctx->in + 64 - t, buf, t); | |
370 | byteSwap(ctx->in, 16); | |
371 | MD5Transform(ctx->buf, ctx->in); | |
372 | buf += t; | |
373 | len -= t; | |
374 | ||
375 | /* Process data in 64-byte chunks */ | |
376 | while (len >= 64) { | |
377 | memcpy(ctx->in, buf, 64); | |
378 | byteSwap(ctx->in, 16); | |
379 | MD5Transform(ctx->buf, ctx->in); | |
380 | buf += 64; | |
381 | len -= 64; | |
382 | } | |
383 | ||
384 | /* Handle any remaining bytes of data. */ | |
385 | memcpy(ctx->in, buf, len); | |
386 | } | |
387 | ||
388 | /* | |
389 | * Final wrapup - pad to 64-byte boundary with the bit pattern | |
390 | * 1 0* (64-bit count of bits processed, MSB-first) | |
391 | * Returns the newly allocated string of the hash. | |
392 | */ | |
393 | static char *MD5Final(MD5Context *ctx) | |
394 | { | |
395 | char *retval; | |
396 | int i; | |
397 | int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */ | |
398 | md5byte *p = (md5byte *)ctx->in + count; | |
399 | guint8 *bytes; | |
400 | ||
401 | /* Set the first char of padding to 0x80. There is always room. */ | |
402 | *p++ = 0x80; | |
403 | ||
404 | /* Bytes of padding needed to make 56 bytes (-8..55) */ | |
405 | count = 56 - 1 - count; | |
406 | ||
407 | if (count < 0) { /* Padding forces an extra block */ | |
408 | memset(p, 0, count + 8); | |
409 | byteSwap(ctx->in, 16); | |
410 | MD5Transform(ctx->buf, ctx->in); | |
411 | p = (md5byte *)ctx->in; | |
412 | count = 56; | |
413 | } | |
414 | memset(p, 0, count); | |
415 | byteSwap(ctx->in, 14); | |
416 | ||
417 | /* Append length in bits and transform */ | |
418 | ctx->in[14] = ctx->bytes[0] << 3; | |
419 | ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29; | |
420 | MD5Transform(ctx->buf, ctx->in); | |
421 | ||
422 | byteSwap(ctx->buf, 4); | |
423 | ||
424 | retval = g_malloc(33); | |
425 | bytes = (guint8 *) ctx->buf; | |
426 | for (i = 0; i < 16; i++) | |
427 | sprintf(retval + (i * 2), "%02x", bytes[i]); | |
428 | retval[32] = '\0'; | |
429 | ||
430 | return retval; | |
431 | } | |
432 | ||
433 | # ifndef ASM_MD5 | |
434 | ||
435 | /* The four core functions - F1 is optimized somewhat */ | |
436 | ||
437 | /* #define F1(x, y, z) (x & y | ~x & z) */ | |
438 | #define F1(x, y, z) (z ^ (x & (y ^ z))) | |
439 | #define F2(x, y, z) F1(z, x, y) | |
440 | #define F3(x, y, z) (x ^ y ^ z) | |
441 | #define F4(x, y, z) (y ^ (x | ~z)) | |
442 | ||
443 | /* This is the central step in the MD5 algorithm. */ | |
444 | #define MD5STEP(f,w,x,y,z,in,s) \ | |
445 | (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x) | |
446 | ||
447 | /* | |
448 | * The core of the MD5 algorithm, this alters an existing MD5 hash to | |
449 | * reflect the addition of 16 longwords of new data. MD5Update blocks | |
450 | * the data and converts bytes into longwords for this routine. | |
451 | */ | |
452 | static void MD5Transform(guint32 buf[4], guint32 const in[16]) | |
453 | { | |
454 | register guint32 a, b, c, d; | |
455 | ||
456 | a = buf[0]; | |
457 | b = buf[1]; | |
458 | c = buf[2]; | |
459 | d = buf[3]; | |
460 | ||
461 | MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); | |
462 | MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); | |
463 | MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); | |
464 | MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); | |
465 | MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); | |
466 | MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); | |
467 | MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); | |
468 | MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); | |
469 | MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); | |
470 | MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); | |
471 | MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); | |
472 | MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); | |
473 | MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); | |
474 | MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); | |
475 | MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); | |
476 | MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); | |
477 | ||
478 | MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); | |
479 | MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); | |
480 | MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); | |
481 | MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); | |
482 | MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); | |
483 | MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); | |
484 | MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); | |
485 | MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); | |
486 | MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); | |
487 | MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); | |
488 | MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); | |
489 | MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); | |
490 | MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); | |
491 | MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); | |
492 | MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); | |
493 | MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); | |
494 | ||
495 | MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); | |
496 | MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); | |
497 | MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); | |
498 | MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); | |
499 | MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); | |
500 | MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); | |
501 | MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); | |
502 | MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); | |
503 | MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); | |
504 | MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); | |
505 | MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); | |
506 | MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); | |
507 | MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); | |
508 | MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); | |
509 | MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); | |
510 | MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); | |
511 | ||
512 | MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); | |
513 | MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); | |
514 | MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); | |
515 | MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); | |
516 | MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); | |
517 | MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); | |
518 | MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); | |
519 | MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); | |
520 | MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); | |
521 | MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); | |
522 | MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); | |
523 | MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); | |
524 | MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); | |
525 | MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); | |
526 | MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); | |
527 | MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); | |
528 | ||
529 | buf[0] += a; | |
530 | buf[1] += b; | |
531 | buf[2] += c; | |
532 | buf[3] += d; | |
533 | } | |
534 | ||
535 | # endif /* ASM_MD5 */ | |
536 | ||
537 | static char *md5_hash(const char *message) | |
538 | { | |
539 | MD5Context ctx; | |
540 | ||
541 | MD5Init(&ctx); | |
542 | MD5Update(&ctx, message, strlen(message)); | |
543 | return MD5Final(&ctx); | |
544 | } |