/src/libtiff/libtiff/tif_dir.c
Line | Count | Source |
1 | | /* |
2 | | * Copyright (c) 1988-1997 Sam Leffler |
3 | | * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
4 | | * |
5 | | * Permission to use, copy, modify, distribute, and sell this software and |
6 | | * its documentation for any purpose is hereby granted without fee, provided |
7 | | * that (i) the above copyright notices and this permission notice appear in |
8 | | * all copies of the software and related documentation, and (ii) the names of |
9 | | * Sam Leffler and Silicon Graphics may not be used in any advertising or |
10 | | * publicity relating to the software without the specific, prior written |
11 | | * permission of Sam Leffler and Silicon Graphics. |
12 | | * |
13 | | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
14 | | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
15 | | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
16 | | * |
17 | | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
18 | | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
19 | | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
20 | | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
21 | | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
22 | | * OF THIS SOFTWARE. |
23 | | */ |
24 | | |
25 | | /* |
26 | | * TIFF Library. |
27 | | * |
28 | | * Directory Tag Get & Set Routines. |
29 | | * (and also some miscellaneous stuff) |
30 | | */ |
31 | | #include "tiffiop.h" |
32 | | #include <float.h> /*--: for Rational2Double */ |
33 | | #include <limits.h> |
34 | | #include <math.h> |
35 | | |
36 | | /* |
37 | | * These are used in the backwards compatibility code... |
38 | | */ |
39 | 0 | #define DATATYPE_VOID 0 /* !untyped data */ |
40 | 0 | #define DATATYPE_INT 1 /* !signed integer data */ |
41 | 0 | #define DATATYPE_UINT 2 /* !unsigned integer data */ |
42 | 0 | #define DATATYPE_IEEEFP 3 /* !IEEE floating point data */ |
43 | | |
44 | | static void setByteArray(TIFF *tif, void **vpp, const void *vp, size_t nmemb, |
45 | | size_t elem_size) |
46 | 0 | { |
47 | 0 | if (*vpp) |
48 | 0 | { |
49 | 0 | _TIFFfreeExt(tif, *vpp); |
50 | 0 | *vpp = 0; |
51 | 0 | } |
52 | 0 | if (vp) |
53 | 0 | { |
54 | 0 | tmsize_t bytes = _TIFFMultiplySSize(NULL, (tmsize_t)nmemb, |
55 | 0 | (tmsize_t)elem_size, NULL); |
56 | 0 | if (bytes) |
57 | 0 | *vpp = (void *)_TIFFmallocExt(tif, bytes); |
58 | 0 | if (*vpp) |
59 | 0 | _TIFFmemcpy(*vpp, vp, bytes); |
60 | 0 | } |
61 | 0 | } |
62 | | void _TIFFsetByteArray(void **vpp, const void *vp, uint32_t n) |
63 | 0 | { |
64 | 0 | setByteArray(NULL, vpp, vp, n, 1); |
65 | 0 | } |
66 | | void _TIFFsetByteArrayExt(TIFF *tif, void **vpp, const void *vp, uint32_t n) |
67 | 0 | { |
68 | 0 | setByteArray(tif, vpp, vp, n, 1); |
69 | 0 | } |
70 | | |
71 | | static void _TIFFsetNString(TIFF *tif, char **cpp, const char *cp, uint32_t n) |
72 | 0 | { |
73 | 0 | setByteArray(tif, (void **)cpp, cp, n, 1); |
74 | 0 | } |
75 | | |
76 | | void _TIFFsetShortArray(uint16_t **wpp, const uint16_t *wp, uint32_t n) |
77 | 0 | { |
78 | 0 | setByteArray(NULL, (void **)wpp, wp, n, sizeof(uint16_t)); |
79 | 0 | } |
80 | | void _TIFFsetShortArrayExt(TIFF *tif, uint16_t **wpp, const uint16_t *wp, |
81 | | uint32_t n) |
82 | 0 | { |
83 | 0 | setByteArray(tif, (void **)wpp, wp, n, sizeof(uint16_t)); |
84 | 0 | } |
85 | | |
86 | | void _TIFFsetLongArray(uint32_t **lpp, const uint32_t *lp, uint32_t n) |
87 | 0 | { |
88 | 0 | setByteArray(NULL, (void **)lpp, lp, n, sizeof(uint32_t)); |
89 | 0 | } |
90 | | void _TIFFsetLongArrayExt(TIFF *tif, uint32_t **lpp, const uint32_t *lp, |
91 | | uint32_t n) |
92 | 0 | { |
93 | 0 | setByteArray(tif, (void **)lpp, lp, n, sizeof(uint32_t)); |
94 | 0 | } |
95 | | |
96 | | static void _TIFFsetLong8Array(TIFF *tif, uint64_t **lpp, const uint64_t *lp, |
97 | | uint32_t n) |
98 | 0 | { |
99 | 0 | setByteArray(tif, (void **)lpp, lp, n, sizeof(uint64_t)); |
100 | 0 | } |
101 | | |
102 | | void _TIFFsetFloatArray(float **fpp, const float *fp, uint32_t n) |
103 | 0 | { |
104 | 0 | setByteArray(NULL, (void **)fpp, fp, n, sizeof(float)); |
105 | 0 | } |
106 | | void _TIFFsetFloatArrayExt(TIFF *tif, float **fpp, const float *fp, uint32_t n) |
107 | 0 | { |
108 | 0 | setByteArray(tif, (void **)fpp, fp, n, sizeof(float)); |
109 | 0 | } |
110 | | |
111 | | void _TIFFsetDoubleArray(double **dpp, const double *dp, uint32_t n) |
112 | 0 | { |
113 | 0 | setByteArray(NULL, (void **)dpp, dp, n, sizeof(double)); |
114 | 0 | } |
115 | | void _TIFFsetDoubleArrayExt(TIFF *tif, double **dpp, const double *dp, |
116 | | uint32_t n) |
117 | 0 | { |
118 | 0 | setByteArray(tif, (void **)dpp, dp, n, sizeof(double)); |
119 | 0 | } |
120 | | |
121 | | static void setDoubleArrayOneValue(TIFF *tif, double **vpp, double value, |
122 | | size_t nmemb) |
123 | 0 | { |
124 | 0 | if (*vpp) |
125 | 0 | _TIFFfreeExt(tif, *vpp); |
126 | 0 | *vpp = (double *)_TIFFmallocExt(tif, |
127 | 0 | (tmsize_t)nmemb * (tmsize_t)sizeof(double)); |
128 | 0 | if (*vpp) |
129 | 0 | { |
130 | 0 | while (nmemb--) |
131 | 0 | ((double *)*vpp)[nmemb] = value; |
132 | 0 | } |
133 | 0 | } |
134 | | |
135 | | /* |
136 | | * Install extra samples information. |
137 | | */ |
138 | | static int setExtraSamples(TIFF *tif, va_list ap, uint32_t *v) |
139 | 0 | { |
140 | | /* XXX: Unassociated alpha data == 999 is a known Corel Draw bug, see below */ |
141 | 0 | #define EXTRASAMPLE_COREL_UNASSALPHA 999 |
142 | |
|
143 | 0 | uint16_t *va; |
144 | 0 | uint32_t i; |
145 | 0 | TIFFDirectory *td = &tif->tif_dir; |
146 | 0 | static const char module[] = "setExtraSamples"; |
147 | |
|
148 | 0 | *v = (uint16_t)va_arg(ap, uint16_vap); |
149 | 0 | if ((uint16_t)*v > td->td_samplesperpixel) |
150 | 0 | return 0; |
151 | 0 | va = va_arg(ap, uint16_t *); |
152 | 0 | if (*v > 0 && va == NULL) /* typically missing param */ |
153 | 0 | return 0; |
154 | 0 | for (i = 0; i < *v; i++) |
155 | 0 | { |
156 | 0 | if (va[i] > EXTRASAMPLE_UNASSALPHA) |
157 | 0 | { |
158 | | /* |
159 | | * XXX: Corel Draw is known to produce incorrect |
160 | | * ExtraSamples tags which must be patched here if we |
161 | | * want to be able to open some of the damaged TIFF |
162 | | * files: |
163 | | */ |
164 | 0 | if (va[i] == EXTRASAMPLE_COREL_UNASSALPHA) |
165 | 0 | va[i] = EXTRASAMPLE_UNASSALPHA; |
166 | 0 | else |
167 | 0 | return 0; |
168 | 0 | } |
169 | 0 | } |
170 | | |
171 | 0 | if (td->td_transferfunction[0] != NULL && |
172 | 0 | (td->td_samplesperpixel - *v > 1) && |
173 | 0 | !(td->td_samplesperpixel - td->td_extrasamples > 1)) |
174 | 0 | { |
175 | 0 | TIFFWarningExtR(tif, module, |
176 | 0 | "ExtraSamples tag value is changing, " |
177 | 0 | "but TransferFunction was read with a different value. " |
178 | 0 | "Canceling it"); |
179 | 0 | TIFFClrFieldBit(tif, FIELD_TRANSFERFUNCTION); |
180 | 0 | _TIFFfreeExt(tif, td->td_transferfunction[0]); |
181 | 0 | td->td_transferfunction[0] = NULL; |
182 | 0 | } |
183 | |
|
184 | 0 | td->td_extrasamples = (uint16_t)*v; |
185 | 0 | _TIFFsetShortArrayExt(tif, &td->td_sampleinfo, va, td->td_extrasamples); |
186 | 0 | return 1; |
187 | |
|
188 | 0 | #undef EXTRASAMPLE_COREL_UNASSALPHA |
189 | 0 | } |
190 | | |
191 | | /* |
192 | | * Count ink names separated by \0. Returns |
193 | | * zero if the ink names are not as expected. |
194 | | */ |
195 | | static uint16_t countInkNamesString(TIFF *tif, uint32_t slen, const char *s) |
196 | 0 | { |
197 | 0 | uint16_t i = 0; |
198 | |
|
199 | 0 | if (slen > 0) |
200 | 0 | { |
201 | 0 | const char *ep = s + slen; |
202 | 0 | const char *cp = s; |
203 | 0 | do |
204 | 0 | { |
205 | 0 | for (; cp < ep && *cp != '\0'; cp++) |
206 | 0 | { |
207 | 0 | } |
208 | 0 | if (cp >= ep) |
209 | 0 | goto bad; |
210 | 0 | cp++; /* skip \0 */ |
211 | 0 | i++; |
212 | 0 | } while (cp < ep); |
213 | 0 | return (i); |
214 | 0 | } |
215 | 0 | bad: |
216 | 0 | TIFFErrorExtR(tif, "TIFFSetField", |
217 | 0 | "%s: Invalid InkNames value; no null at given buffer end " |
218 | 0 | "location %" PRIu32 ", after %" PRIu16 " ink", |
219 | 0 | tif->tif_name, slen, i); |
220 | 0 | return (0); |
221 | 0 | } |
222 | | |
223 | | static int _TIFFVSetField(TIFF *tif, uint32_t tag, va_list ap) |
224 | 127k | { |
225 | 127k | static const char module[] = "_TIFFVSetField"; |
226 | | |
227 | 127k | TIFFDirectory *td = &tif->tif_dir; |
228 | 127k | int status = 1; |
229 | 127k | uint32_t v32, v; |
230 | 127k | double dblval; |
231 | 127k | char *s; |
232 | 127k | const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY); |
233 | 127k | uint32_t standard_tag = tag; |
234 | 127k | if (fip == NULL) /* cannot happen since OkToChangeTag() already checks it */ |
235 | 0 | return 0; |
236 | | /* |
237 | | * We want to force the custom code to be used for custom |
238 | | * fields even if the tag happens to match a well known |
239 | | * one - important for reinterpreted handling of standard |
240 | | * tag values in custom directories (i.e. EXIF) |
241 | | */ |
242 | 127k | if (fip->field_bit == FIELD_CUSTOM) |
243 | 0 | { |
244 | 0 | standard_tag = 0; |
245 | 0 | } |
246 | | |
247 | 127k | switch (standard_tag) |
248 | 127k | { |
249 | 0 | case TIFFTAG_SUBFILETYPE: |
250 | 0 | td->td_subfiletype = (uint32_t)va_arg(ap, uint32_t); |
251 | 0 | break; |
252 | 9.12k | case TIFFTAG_IMAGEWIDTH: |
253 | 9.12k | td->td_imagewidth = (uint32_t)va_arg(ap, uint32_t); |
254 | 9.12k | break; |
255 | 9.12k | case TIFFTAG_IMAGELENGTH: |
256 | 9.12k | td->td_imagelength = (uint32_t)va_arg(ap, uint32_t); |
257 | 9.12k | break; |
258 | 9.12k | case TIFFTAG_BITSPERSAMPLE: |
259 | 9.12k | td->td_bitspersample = (uint16_t)va_arg(ap, uint16_vap); |
260 | | /* |
261 | | * If the data require post-decoding processing to byte-swap |
262 | | * samples, set it up here. Note that since tags are required |
263 | | * to be ordered, compression code can override this behavior |
264 | | * in the setup method if it wants to roll the post decoding |
265 | | * work in with its normal work. |
266 | | */ |
267 | 9.12k | if (tif->tif_flags & TIFF_SWAB) |
268 | 0 | { |
269 | 0 | if (td->td_bitspersample == 8) |
270 | 0 | tif->tif_postdecode = _TIFFNoPostDecode; |
271 | 0 | else if (td->td_bitspersample == 16) |
272 | 0 | tif->tif_postdecode = _TIFFSwab16BitData; |
273 | 0 | else if (td->td_bitspersample == 24) |
274 | 0 | tif->tif_postdecode = _TIFFSwab24BitData; |
275 | 0 | else if (td->td_bitspersample == 32) |
276 | 0 | tif->tif_postdecode = _TIFFSwab32BitData; |
277 | 0 | else if (td->td_bitspersample == 64) |
278 | 0 | tif->tif_postdecode = _TIFFSwab64BitData; |
279 | 0 | else if (td->td_bitspersample == 128) /* two 64's */ |
280 | 0 | tif->tif_postdecode = _TIFFSwab64BitData; |
281 | 0 | } |
282 | 9.12k | break; |
283 | 18.2k | case TIFFTAG_COMPRESSION: |
284 | 18.2k | v = (uint16_t)va_arg(ap, uint16_vap); |
285 | | /* |
286 | | * If we're changing the compression scheme, notify the |
287 | | * previous module so that it can cleanup any state it's |
288 | | * setup. |
289 | | */ |
290 | 18.2k | if (TIFFFieldSet(tif, FIELD_COMPRESSION)) |
291 | 9.12k | { |
292 | 9.12k | if ((uint32_t)td->td_compression == v) |
293 | 0 | break; |
294 | 9.12k | (*tif->tif_cleanup)(tif); |
295 | 9.12k | tif->tif_flags &= ~TIFF_CODERSETUP; |
296 | 9.12k | } |
297 | | /* |
298 | | * Setup new compression routine state. |
299 | | */ |
300 | 18.2k | if ((status = TIFFSetCompressionScheme(tif, (int)v)) != 0) |
301 | 18.2k | td->td_compression = (uint16_t)v; |
302 | 0 | else |
303 | 0 | status = 0; |
304 | 18.2k | break; |
305 | 9.12k | case TIFFTAG_PHOTOMETRIC: |
306 | 9.12k | td->td_photometric = (uint16_t)va_arg(ap, uint16_vap); |
307 | 9.12k | break; |
308 | 0 | case TIFFTAG_THRESHHOLDING: |
309 | 0 | td->td_threshholding = (uint16_t)va_arg(ap, uint16_vap); |
310 | 0 | break; |
311 | 0 | case TIFFTAG_FILLORDER: |
312 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
313 | 0 | if (v != FILLORDER_LSB2MSB && v != FILLORDER_MSB2LSB) |
314 | 0 | goto badvalue; |
315 | 0 | td->td_fillorder = (uint16_t)v; |
316 | 0 | break; |
317 | 9.12k | case TIFFTAG_ORIENTATION: |
318 | 9.12k | v = (uint16_t)va_arg(ap, uint16_vap); |
319 | 9.12k | if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) |
320 | 0 | goto badvalue; |
321 | 9.12k | else |
322 | 9.12k | td->td_orientation = (uint16_t)v; |
323 | 9.12k | break; |
324 | 9.12k | case TIFFTAG_SAMPLESPERPIXEL: |
325 | 9.12k | v = (uint16_t)va_arg(ap, uint16_vap); |
326 | 9.12k | if (v == 0) |
327 | 0 | goto badvalue; |
328 | 9.12k | if (v != td->td_samplesperpixel) |
329 | 0 | { |
330 | | /* See http://bugzilla.maptools.org/show_bug.cgi?id=2500 */ |
331 | 0 | if (td->td_sminsamplevalue != NULL) |
332 | 0 | { |
333 | 0 | TIFFWarningExtR(tif, module, |
334 | 0 | "SamplesPerPixel tag value is changing, " |
335 | 0 | "but SMinSampleValue tag was read with a " |
336 | 0 | "different value. Canceling it"); |
337 | 0 | TIFFClrFieldBit(tif, FIELD_SMINSAMPLEVALUE); |
338 | 0 | _TIFFfreeExt(tif, td->td_sminsamplevalue); |
339 | 0 | td->td_sminsamplevalue = NULL; |
340 | 0 | } |
341 | 0 | if (td->td_smaxsamplevalue != NULL) |
342 | 0 | { |
343 | 0 | TIFFWarningExtR(tif, module, |
344 | 0 | "SamplesPerPixel tag value is changing, " |
345 | 0 | "but SMaxSampleValue tag was read with a " |
346 | 0 | "different value. Canceling it"); |
347 | 0 | TIFFClrFieldBit(tif, FIELD_SMAXSAMPLEVALUE); |
348 | 0 | _TIFFfreeExt(tif, td->td_smaxsamplevalue); |
349 | 0 | td->td_smaxsamplevalue = NULL; |
350 | 0 | } |
351 | | /* Test if 3 transfer functions instead of just one are now |
352 | | needed See http://bugzilla.maptools.org/show_bug.cgi?id=2820 |
353 | | */ |
354 | 0 | if (td->td_transferfunction[0] != NULL && |
355 | 0 | (v - td->td_extrasamples > 1) && |
356 | 0 | !(td->td_samplesperpixel - td->td_extrasamples > 1)) |
357 | 0 | { |
358 | 0 | TIFFWarningExtR(tif, module, |
359 | 0 | "SamplesPerPixel tag value is changing, " |
360 | 0 | "but TransferFunction was read with a " |
361 | 0 | "different value. Canceling it"); |
362 | 0 | TIFFClrFieldBit(tif, FIELD_TRANSFERFUNCTION); |
363 | 0 | _TIFFfreeExt(tif, td->td_transferfunction[0]); |
364 | 0 | td->td_transferfunction[0] = NULL; |
365 | 0 | } |
366 | 0 | } |
367 | 9.12k | td->td_samplesperpixel = (uint16_t)v; |
368 | 9.12k | break; |
369 | 9.12k | case TIFFTAG_ROWSPERSTRIP: |
370 | 9.12k | v32 = (uint32_t)va_arg(ap, uint32_t); |
371 | 9.12k | if (v32 == 0) |
372 | 0 | goto badvalue32; |
373 | 9.12k | td->td_rowsperstrip = v32; |
374 | 9.12k | if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) |
375 | 9.12k | { |
376 | 9.12k | td->td_tilelength = v32; |
377 | 9.12k | td->td_tilewidth = td->td_imagewidth; |
378 | 9.12k | } |
379 | 9.12k | break; |
380 | 0 | case TIFFTAG_MINSAMPLEVALUE: |
381 | 0 | td->td_minsamplevalue = (uint16_t)va_arg(ap, uint16_vap); |
382 | 0 | break; |
383 | 0 | case TIFFTAG_MAXSAMPLEVALUE: |
384 | 0 | td->td_maxsamplevalue = (uint16_t)va_arg(ap, uint16_vap); |
385 | 0 | break; |
386 | 0 | case TIFFTAG_SMINSAMPLEVALUE: |
387 | 0 | if (tif->tif_flags & TIFF_PERSAMPLE) |
388 | 0 | _TIFFsetDoubleArrayExt(tif, &td->td_sminsamplevalue, |
389 | 0 | va_arg(ap, double *), |
390 | 0 | td->td_samplesperpixel); |
391 | 0 | else |
392 | 0 | setDoubleArrayOneValue(tif, &td->td_sminsamplevalue, |
393 | 0 | va_arg(ap, double), |
394 | 0 | td->td_samplesperpixel); |
395 | 0 | break; |
396 | 0 | case TIFFTAG_SMAXSAMPLEVALUE: |
397 | 0 | if (tif->tif_flags & TIFF_PERSAMPLE) |
398 | 0 | _TIFFsetDoubleArrayExt(tif, &td->td_smaxsamplevalue, |
399 | 0 | va_arg(ap, double *), |
400 | 0 | td->td_samplesperpixel); |
401 | 0 | else |
402 | 0 | setDoubleArrayOneValue(tif, &td->td_smaxsamplevalue, |
403 | 0 | va_arg(ap, double), |
404 | 0 | td->td_samplesperpixel); |
405 | 0 | break; |
406 | 9.12k | case TIFFTAG_XRESOLUTION: |
407 | 9.12k | dblval = va_arg(ap, double); |
408 | 9.12k | if (isnan(dblval) || dblval < 0) |
409 | 0 | goto badvaluedouble; |
410 | 9.12k | td->td_xresolution = _TIFFClampDoubleToFloat(dblval); |
411 | 9.12k | break; |
412 | 9.12k | case TIFFTAG_YRESOLUTION: |
413 | 9.12k | dblval = va_arg(ap, double); |
414 | 9.12k | if (isnan(dblval) || dblval < 0) |
415 | 0 | goto badvaluedouble; |
416 | 9.12k | td->td_yresolution = _TIFFClampDoubleToFloat(dblval); |
417 | 9.12k | break; |
418 | 18.2k | case TIFFTAG_PLANARCONFIG: |
419 | 18.2k | v = (uint16_t)va_arg(ap, uint16_vap); |
420 | 18.2k | if (v != PLANARCONFIG_CONTIG && v != PLANARCONFIG_SEPARATE) |
421 | 0 | goto badvalue; |
422 | 18.2k | td->td_planarconfig = (uint16_t)v; |
423 | 18.2k | break; |
424 | 0 | case TIFFTAG_XPOSITION: |
425 | 0 | td->td_xposition = _TIFFClampDoubleToFloat(va_arg(ap, double)); |
426 | 0 | break; |
427 | 0 | case TIFFTAG_YPOSITION: |
428 | 0 | td->td_yposition = _TIFFClampDoubleToFloat(va_arg(ap, double)); |
429 | 0 | break; |
430 | 9.12k | case TIFFTAG_RESOLUTIONUNIT: |
431 | 9.12k | v = (uint16_t)va_arg(ap, uint16_vap); |
432 | 9.12k | if (v < RESUNIT_NONE || RESUNIT_CENTIMETER < v) |
433 | 0 | goto badvalue; |
434 | 9.12k | td->td_resolutionunit = (uint16_t)v; |
435 | 9.12k | break; |
436 | 0 | case TIFFTAG_PAGENUMBER: |
437 | 0 | td->td_pagenumber[0] = (uint16_t)va_arg(ap, uint16_vap); |
438 | 0 | td->td_pagenumber[1] = (uint16_t)va_arg(ap, uint16_vap); |
439 | 0 | break; |
440 | 0 | case TIFFTAG_HALFTONEHINTS: |
441 | 0 | td->td_halftonehints[0] = (uint16_t)va_arg(ap, uint16_vap); |
442 | 0 | td->td_halftonehints[1] = (uint16_t)va_arg(ap, uint16_vap); |
443 | 0 | break; |
444 | 0 | case TIFFTAG_COLORMAP: |
445 | 0 | if (td->td_bitspersample >= 32) |
446 | 0 | { |
447 | 0 | v = td->td_bitspersample; |
448 | 0 | goto badvalue; |
449 | 0 | } |
450 | 0 | v32 = 1U << td->td_bitspersample; |
451 | 0 | _TIFFsetShortArrayExt(tif, &td->td_colormap[0], |
452 | 0 | va_arg(ap, uint16_t *), v32); |
453 | 0 | _TIFFsetShortArrayExt(tif, &td->td_colormap[1], |
454 | 0 | va_arg(ap, uint16_t *), v32); |
455 | 0 | _TIFFsetShortArrayExt(tif, &td->td_colormap[2], |
456 | 0 | va_arg(ap, uint16_t *), v32); |
457 | 0 | break; |
458 | 0 | case TIFFTAG_EXTRASAMPLES: |
459 | 0 | if (!setExtraSamples(tif, ap, &v)) |
460 | 0 | goto badvalue; |
461 | 0 | break; |
462 | 0 | case TIFFTAG_MATTEING: |
463 | 0 | td->td_extrasamples = (((uint16_t)va_arg(ap, uint16_vap)) != 0); |
464 | 0 | if (td->td_extrasamples) |
465 | 0 | { |
466 | 0 | uint16_t sv = EXTRASAMPLE_ASSOCALPHA; |
467 | 0 | _TIFFsetShortArrayExt(tif, &td->td_sampleinfo, &sv, 1); |
468 | 0 | } |
469 | 0 | break; |
470 | 0 | case TIFFTAG_TILEWIDTH: |
471 | 0 | v32 = (uint32_t)va_arg(ap, uint32_t); |
472 | 0 | if (v32 % 16) |
473 | 0 | { |
474 | 0 | if (tif->tif_mode != O_RDONLY) |
475 | 0 | goto badvalue32; |
476 | 0 | TIFFWarningExtR( |
477 | 0 | tif, tif->tif_name, |
478 | 0 | "Nonstandard tile width %" PRIu32 ", convert file", v32); |
479 | 0 | } |
480 | 0 | td->td_tilewidth = v32; |
481 | 0 | tif->tif_flags |= TIFF_ISTILED; |
482 | 0 | break; |
483 | 0 | case TIFFTAG_TILELENGTH: |
484 | 0 | v32 = (uint32_t)va_arg(ap, uint32_t); |
485 | 0 | if (v32 % 16) |
486 | 0 | { |
487 | 0 | if (tif->tif_mode != O_RDONLY) |
488 | 0 | goto badvalue32; |
489 | 0 | TIFFWarningExtR( |
490 | 0 | tif, tif->tif_name, |
491 | 0 | "Nonstandard tile length %" PRIu32 ", convert file", v32); |
492 | 0 | } |
493 | 0 | td->td_tilelength = v32; |
494 | 0 | tif->tif_flags |= TIFF_ISTILED; |
495 | 0 | break; |
496 | 0 | case TIFFTAG_TILEDEPTH: |
497 | 0 | v32 = (uint32_t)va_arg(ap, uint32_t); |
498 | 0 | if (v32 == 0) |
499 | 0 | goto badvalue32; |
500 | 0 | td->td_tiledepth = v32; |
501 | 0 | break; |
502 | 0 | case TIFFTAG_DATATYPE: |
503 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
504 | 0 | switch (v) |
505 | 0 | { |
506 | 0 | case DATATYPE_VOID: |
507 | 0 | v = SAMPLEFORMAT_VOID; |
508 | 0 | break; |
509 | 0 | case DATATYPE_INT: |
510 | 0 | v = SAMPLEFORMAT_INT; |
511 | 0 | break; |
512 | 0 | case DATATYPE_UINT: |
513 | 0 | v = SAMPLEFORMAT_UINT; |
514 | 0 | break; |
515 | 0 | case DATATYPE_IEEEFP: |
516 | 0 | v = SAMPLEFORMAT_IEEEFP; |
517 | 0 | break; |
518 | 0 | default: |
519 | 0 | goto badvalue; |
520 | 0 | } |
521 | 0 | td->td_sampleformat = (uint16_t)v; |
522 | 0 | break; |
523 | 0 | case TIFFTAG_SAMPLEFORMAT: |
524 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
525 | 0 | if (v < SAMPLEFORMAT_UINT || SAMPLEFORMAT_COMPLEXIEEEFP < v) |
526 | 0 | goto badvalue; |
527 | 0 | td->td_sampleformat = (uint16_t)v; |
528 | | |
529 | | /* Try to fix up the SWAB function for complex data. */ |
530 | 0 | if (td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT && |
531 | 0 | td->td_bitspersample == 32 && |
532 | 0 | tif->tif_postdecode == _TIFFSwab32BitData) |
533 | 0 | tif->tif_postdecode = _TIFFSwab16BitData; |
534 | 0 | else if ((td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT || |
535 | 0 | td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP) && |
536 | 0 | td->td_bitspersample == 64 && |
537 | 0 | tif->tif_postdecode == _TIFFSwab64BitData) |
538 | 0 | tif->tif_postdecode = _TIFFSwab32BitData; |
539 | 0 | break; |
540 | 0 | case TIFFTAG_IMAGEDEPTH: |
541 | 0 | td->td_imagedepth = (uint32_t)va_arg(ap, uint32_t); |
542 | 0 | break; |
543 | 0 | case TIFFTAG_SUBIFD: |
544 | 0 | if ((tif->tif_flags & TIFF_INSUBIFD) == 0) |
545 | 0 | { |
546 | 0 | td->td_nsubifd = (uint16_t)va_arg(ap, uint16_vap); |
547 | 0 | _TIFFsetLong8Array(tif, &td->td_subifd, |
548 | 0 | (uint64_t *)va_arg(ap, uint64_t *), |
549 | 0 | (uint32_t)td->td_nsubifd); |
550 | 0 | } |
551 | 0 | else |
552 | 0 | { |
553 | 0 | TIFFErrorExtR(tif, module, "%s: Sorry, cannot nest SubIFDs", |
554 | 0 | tif->tif_name); |
555 | 0 | status = 0; |
556 | 0 | } |
557 | 0 | break; |
558 | 0 | case TIFFTAG_YCBCRPOSITIONING: |
559 | 0 | td->td_ycbcrpositioning = (uint16_t)va_arg(ap, uint16_vap); |
560 | 0 | break; |
561 | 0 | case TIFFTAG_YCBCRSUBSAMPLING: |
562 | 0 | td->td_ycbcrsubsampling[0] = (uint16_t)va_arg(ap, uint16_vap); |
563 | 0 | td->td_ycbcrsubsampling[1] = (uint16_t)va_arg(ap, uint16_vap); |
564 | 0 | break; |
565 | 0 | case TIFFTAG_TRANSFERFUNCTION: |
566 | 0 | { |
567 | 0 | uint32_t i; |
568 | 0 | uint32_t count; |
569 | 0 | if (td->td_bitspersample >= 32) |
570 | 0 | { |
571 | 0 | v = td->td_bitspersample; |
572 | 0 | goto badvalue; |
573 | 0 | } |
574 | 0 | count = 1U << td->td_bitspersample; |
575 | 0 | v = (td->td_samplesperpixel - td->td_extrasamples) > 1 ? 3 : 1; |
576 | 0 | for (i = 0; i < v; i++) |
577 | 0 | _TIFFsetShortArrayExt(tif, &td->td_transferfunction[i], |
578 | 0 | va_arg(ap, uint16_t *), count); |
579 | 0 | break; |
580 | 0 | } |
581 | 0 | case TIFFTAG_REFERENCEBLACKWHITE: |
582 | | /* XXX should check for null range */ |
583 | 0 | _TIFFsetFloatArrayExt(tif, &td->td_refblackwhite, |
584 | 0 | va_arg(ap, float *), 6); |
585 | 0 | break; |
586 | 0 | case TIFFTAG_INKNAMES: |
587 | 0 | { |
588 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
589 | 0 | s = va_arg(ap, char *); |
590 | 0 | uint16_t ninksinstring; |
591 | 0 | ninksinstring = countInkNamesString(tif, v, s); |
592 | 0 | status = ninksinstring > 0; |
593 | 0 | if (ninksinstring > 0) |
594 | 0 | { |
595 | 0 | _TIFFsetNString(tif, &td->td_inknames, s, v); |
596 | 0 | td->td_inknameslen = (int)v; |
597 | | /* Set NumberOfInks to the value ninksinstring */ |
598 | 0 | if (TIFFFieldSet(tif, FIELD_NUMBEROFINKS)) |
599 | 0 | { |
600 | 0 | if (td->td_numberofinks != ninksinstring) |
601 | 0 | { |
602 | 0 | TIFFErrorExtR( |
603 | 0 | tif, module, |
604 | 0 | "Warning %s; Tag %s:\n Value %" PRIu16 |
605 | 0 | " of NumberOfInks is different from the number of " |
606 | 0 | "inks %" PRIu16 |
607 | 0 | ".\n -> NumberOfInks value adapted to %" PRIu16 "", |
608 | 0 | tif->tif_name, fip->field_name, td->td_numberofinks, |
609 | 0 | ninksinstring, ninksinstring); |
610 | 0 | td->td_numberofinks = ninksinstring; |
611 | 0 | } |
612 | 0 | } |
613 | 0 | else |
614 | 0 | { |
615 | 0 | td->td_numberofinks = ninksinstring; |
616 | 0 | TIFFSetFieldBit(tif, FIELD_NUMBEROFINKS); |
617 | 0 | } |
618 | 0 | if (TIFFFieldSet(tif, FIELD_SAMPLESPERPIXEL)) |
619 | 0 | { |
620 | 0 | if (td->td_numberofinks != td->td_samplesperpixel) |
621 | 0 | { |
622 | 0 | TIFFErrorExtR(tif, module, |
623 | 0 | "Warning %s; Tag %s:\n Value %" PRIu16 |
624 | 0 | " of NumberOfInks is different from the " |
625 | 0 | "SamplesPerPixel value %" PRIu16 "", |
626 | 0 | tif->tif_name, fip->field_name, |
627 | 0 | td->td_numberofinks, |
628 | 0 | td->td_samplesperpixel); |
629 | 0 | } |
630 | 0 | } |
631 | 0 | } |
632 | 0 | } |
633 | 0 | break; |
634 | 0 | case TIFFTAG_NUMBEROFINKS: |
635 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
636 | | /* If InkNames already set also NumberOfInks is set accordingly and |
637 | | * should be equal */ |
638 | 0 | if (TIFFFieldSet(tif, FIELD_INKNAMES)) |
639 | 0 | { |
640 | 0 | if (v != td->td_numberofinks) |
641 | 0 | { |
642 | 0 | TIFFErrorExtR( |
643 | 0 | tif, module, |
644 | 0 | "Error %s; Tag %s:\n It is not possible to set the " |
645 | 0 | "value %" PRIu32 |
646 | 0 | " for NumberOfInks\n which is different from the " |
647 | 0 | "number of inks in the InkNames tag (%" PRIu16 ")", |
648 | 0 | tif->tif_name, fip->field_name, v, td->td_numberofinks); |
649 | | /* Do not set / overwrite number of inks already set by |
650 | | * InkNames case accordingly. */ |
651 | 0 | status = 0; |
652 | 0 | } |
653 | 0 | } |
654 | 0 | else |
655 | 0 | { |
656 | 0 | td->td_numberofinks = (uint16_t)v; |
657 | 0 | if (TIFFFieldSet(tif, FIELD_SAMPLESPERPIXEL)) |
658 | 0 | { |
659 | 0 | if (td->td_numberofinks != td->td_samplesperpixel) |
660 | 0 | { |
661 | 0 | TIFFErrorExtR(tif, module, |
662 | 0 | "Warning %s; Tag %s:\n Value %" PRIu32 |
663 | 0 | " of NumberOfInks is different from the " |
664 | 0 | "SamplesPerPixel value %" PRIu16 "", |
665 | 0 | tif->tif_name, fip->field_name, v, |
666 | 0 | td->td_samplesperpixel); |
667 | 0 | } |
668 | 0 | } |
669 | 0 | } |
670 | 0 | break; |
671 | 0 | case TIFFTAG_PERSAMPLE: |
672 | 0 | v = (uint16_t)va_arg(ap, uint16_vap); |
673 | 0 | if (v == PERSAMPLE_MULTI) |
674 | 0 | tif->tif_flags |= TIFF_PERSAMPLE; |
675 | 0 | else |
676 | 0 | tif->tif_flags &= ~TIFF_PERSAMPLE; |
677 | 0 | break; |
678 | 0 | default: |
679 | 0 | { |
680 | 0 | TIFFTagValue *tv; |
681 | 0 | int tv_size, iCustom; |
682 | | |
683 | | /* |
684 | | * This can happen if multiple images are open with different |
685 | | * codecs which have private tags. The global tag information |
686 | | * table may then have tags that are valid for one file but not |
687 | | * the other. If the client tries to set a tag that is not valid |
688 | | * for the image's codec then we'll arrive here. This |
689 | | * happens, for example, when tiffcp is used to convert between |
690 | | * compression schemes and codec-specific tags are blindly copied. |
691 | | * |
692 | | * This also happens when a FIELD_IGNORE tag is written. |
693 | | */ |
694 | 0 | if (fip->field_bit == FIELD_IGNORE) |
695 | 0 | { |
696 | 0 | TIFFErrorExtR( |
697 | 0 | tif, module, |
698 | 0 | "%s: Ignored %stag \"%s\" (not supported by libtiff)", |
699 | 0 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", |
700 | 0 | fip->field_name); |
701 | 0 | status = 0; |
702 | 0 | break; |
703 | 0 | } |
704 | 0 | if (fip->field_bit != FIELD_CUSTOM) |
705 | 0 | { |
706 | 0 | TIFFErrorExtR( |
707 | 0 | tif, module, |
708 | 0 | "%s: Invalid %stag \"%s\" (not supported by codec)", |
709 | 0 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", |
710 | 0 | fip->field_name); |
711 | 0 | status = 0; |
712 | 0 | break; |
713 | 0 | } |
714 | | |
715 | | /* |
716 | | * Find the existing entry for this custom value. |
717 | | */ |
718 | 0 | tv = NULL; |
719 | 0 | for (iCustom = 0; iCustom < td->td_customValueCount; iCustom++) |
720 | 0 | { |
721 | 0 | if (td->td_customValues[iCustom].info->field_tag == tag) |
722 | 0 | { |
723 | 0 | tv = td->td_customValues + iCustom; |
724 | 0 | if (tv->value != NULL) |
725 | 0 | { |
726 | 0 | _TIFFfreeExt(tif, tv->value); |
727 | 0 | tv->value = NULL; |
728 | 0 | } |
729 | 0 | break; |
730 | 0 | } |
731 | 0 | } |
732 | | |
733 | | /* |
734 | | * Grow the custom list if the entry was not found. |
735 | | */ |
736 | 0 | if (tv == NULL) |
737 | 0 | { |
738 | 0 | TIFFTagValue *new_customValues; |
739 | |
|
740 | 0 | new_customValues = (TIFFTagValue *)_TIFFreallocExt( |
741 | 0 | tif, td->td_customValues, |
742 | 0 | (tmsize_t)(sizeof(TIFFTagValue) * |
743 | 0 | (size_t)(td->td_customValueCount + 1))); |
744 | 0 | if (!new_customValues) |
745 | 0 | { |
746 | 0 | TIFFErrorExtR(tif, module, |
747 | 0 | "%s: Failed to allocate space for list of " |
748 | 0 | "custom values", |
749 | 0 | tif->tif_name); |
750 | 0 | status = 0; |
751 | 0 | goto end; |
752 | 0 | } |
753 | | |
754 | 0 | td->td_customValueCount++; |
755 | 0 | td->td_customValues = new_customValues; |
756 | |
|
757 | 0 | tv = td->td_customValues + (td->td_customValueCount - 1); |
758 | 0 | tv->info = fip; |
759 | 0 | tv->value = NULL; |
760 | 0 | tv->count = 0; |
761 | 0 | } |
762 | | |
763 | | /* |
764 | | * Set custom value ... save a copy of the custom tag value. |
765 | | */ |
766 | | /*--: Rational2Double: For Rationals evaluate "set_get_field_type" |
767 | | * to determine internal storage size. */ |
768 | 0 | tv_size = TIFFFieldSetGetSize(fip); |
769 | 0 | if (tv_size == 0) |
770 | 0 | { |
771 | 0 | status = 0; |
772 | 0 | TIFFErrorExtR(tif, module, "%s: Bad field type %u for \"%s\"", |
773 | 0 | tif->tif_name, fip->field_type, fip->field_name); |
774 | 0 | goto end; |
775 | 0 | } |
776 | | |
777 | 0 | if (fip->field_type == TIFF_ASCII) |
778 | 0 | { |
779 | 0 | uint32_t ma; |
780 | 0 | const char *mb; |
781 | 0 | if (fip->field_passcount) |
782 | 0 | { |
783 | 0 | assert(fip->field_writecount == TIFF_VARIABLE2); |
784 | 0 | ma = (uint32_t)va_arg(ap, uint32_t); |
785 | 0 | mb = (const char *)va_arg(ap, const char *); |
786 | 0 | } |
787 | 0 | else |
788 | 0 | { |
789 | 0 | mb = (const char *)va_arg(ap, const char *); |
790 | 0 | size_t len = strlen(mb) + 1; |
791 | 0 | if (len >= 0x80000000U) |
792 | 0 | { |
793 | 0 | status = 0; |
794 | 0 | TIFFErrorExtR(tif, module, |
795 | 0 | "%s: Too long string value for \"%s\". " |
796 | 0 | "Maximum supported is 2147483647 bytes", |
797 | 0 | tif->tif_name, fip->field_name); |
798 | 0 | goto end; |
799 | 0 | } |
800 | 0 | ma = (uint32_t)len; |
801 | 0 | } |
802 | 0 | tv->count = (int)ma; |
803 | 0 | setByteArray(tif, &tv->value, mb, ma, 1); |
804 | 0 | } |
805 | 0 | else |
806 | 0 | { |
807 | 0 | if (fip->field_passcount) |
808 | 0 | { |
809 | 0 | if (fip->field_writecount == TIFF_VARIABLE2) |
810 | 0 | tv->count = (int)va_arg(ap, uint32_t); |
811 | 0 | else |
812 | 0 | tv->count = va_arg(ap, int); |
813 | 0 | } |
814 | 0 | else if (fip->field_writecount == TIFF_VARIABLE || |
815 | 0 | fip->field_writecount == TIFF_VARIABLE2) |
816 | 0 | tv->count = 1; |
817 | 0 | else if (fip->field_writecount == TIFF_SPP) |
818 | 0 | tv->count = td->td_samplesperpixel; |
819 | 0 | else |
820 | 0 | tv->count = fip->field_writecount; |
821 | |
|
822 | 0 | if (tv->count == 0) |
823 | 0 | { |
824 | 0 | TIFFWarningExtR(tif, module, |
825 | 0 | "%s: Null count for \"%s\" (type " |
826 | 0 | "%u, writecount %d, passcount %d)", |
827 | 0 | tif->tif_name, fip->field_name, |
828 | 0 | fip->field_type, fip->field_writecount, |
829 | 0 | fip->field_passcount); |
830 | 0 | break; |
831 | 0 | } |
832 | | |
833 | 0 | tv->value = _TIFFCheckMalloc(tif, tv->count, tv_size, |
834 | 0 | "custom tag binary object"); |
835 | 0 | if (!tv->value) |
836 | 0 | { |
837 | 0 | status = 0; |
838 | 0 | goto end; |
839 | 0 | } |
840 | | |
841 | 0 | if (fip->field_tag == TIFFTAG_DOTRANGE && |
842 | 0 | strcmp(fip->field_name, "DotRange") == 0) |
843 | 0 | { |
844 | | /* TODO: This is an evil exception and should not have been |
845 | | handled this way ... likely best if we move it into |
846 | | the directory structure with an explicit field in |
847 | | libtiff 4.1 and assign it a FIELD_ value */ |
848 | 0 | uint16_t v2[2]; |
849 | 0 | v2[0] = (uint16_t)va_arg(ap, int); |
850 | 0 | v2[1] = (uint16_t)va_arg(ap, int); |
851 | 0 | _TIFFmemcpy(tv->value, &v2, 4); |
852 | 0 | } |
853 | | |
854 | 0 | else if (fip->field_passcount || |
855 | 0 | fip->field_writecount == TIFF_VARIABLE || |
856 | 0 | fip->field_writecount == TIFF_VARIABLE2 || |
857 | 0 | fip->field_writecount == TIFF_SPP || tv->count > 1) |
858 | 0 | { |
859 | | /*--: Rational2Double: For Rationals tv_size is set above to |
860 | | * 4 or 8 according to fip->set_get_field_type! */ |
861 | 0 | _TIFFmemcpy(tv->value, va_arg(ap, void *), |
862 | 0 | tv->count * tv_size); |
863 | | /* Test here for too big values for LONG8, IFD8, SLONG8 in |
864 | | * ClassicTIFF and delete custom field from custom list */ |
865 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
866 | 0 | { |
867 | 0 | if (tv->info->field_type == TIFF_LONG8 || |
868 | 0 | tv->info->field_type == TIFF_IFD8) |
869 | 0 | { |
870 | 0 | uint64_t *pui64 = (uint64_t *)tv->value; |
871 | 0 | for (int i = 0; i < tv->count; i++) |
872 | 0 | { |
873 | 0 | if (pui64[i] > 0xffffffffu) |
874 | 0 | { |
875 | 0 | TIFFErrorExtR( |
876 | 0 | tif, module, |
877 | 0 | "%s: Bad %s value %" PRIu64 |
878 | 0 | " at %d. array position for \"%s\" tag " |
879 | 0 | "%u in ClassicTIFF. Tag won't be " |
880 | 0 | "written to file", |
881 | 0 | tif->tif_name, |
882 | 0 | (tv->info->field_type == TIFF_LONG8 |
883 | 0 | ? "LONG8" |
884 | 0 | : "IFD8"), |
885 | 0 | pui64[i], i, fip->field_name, tag); |
886 | 0 | goto badvalueifd8long8; |
887 | 0 | } |
888 | 0 | } |
889 | 0 | } |
890 | 0 | else if (tv->info->field_type == TIFF_SLONG8) |
891 | 0 | { |
892 | 0 | int64_t *pi64 = (int64_t *)tv->value; |
893 | 0 | for (int i = 0; i < tv->count; i++) |
894 | 0 | { |
895 | 0 | if (pi64[i] > 2147483647 || |
896 | 0 | pi64[i] < (-2147483647 - 1)) |
897 | 0 | { |
898 | 0 | TIFFErrorExtR( |
899 | 0 | tif, module, |
900 | 0 | "%s: Bad SLONG8 value %" PRIi64 |
901 | 0 | " at %d. array position for \"%s\" tag " |
902 | 0 | "%u in ClassicTIFF. Tag won't be " |
903 | 0 | "written to file", |
904 | 0 | tif->tif_name, pi64[i], i, |
905 | 0 | fip->field_name, tag); |
906 | 0 | goto badvalueifd8long8; |
907 | 0 | } |
908 | 0 | } |
909 | 0 | } |
910 | 0 | } |
911 | 0 | } |
912 | 0 | else |
913 | 0 | { |
914 | 0 | char *val = (char *)tv->value; |
915 | 0 | assert(tv->count == 1); |
916 | |
|
917 | 0 | switch (fip->field_type) |
918 | 0 | { |
919 | 0 | case TIFF_BYTE: |
920 | 0 | case TIFF_UNDEFINED: |
921 | 0 | { |
922 | 0 | uint8_t v2 = (uint8_t)va_arg(ap, int); |
923 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
924 | 0 | } |
925 | 0 | break; |
926 | 0 | case TIFF_SBYTE: |
927 | 0 | { |
928 | 0 | int8_t v2 = (int8_t)va_arg(ap, int); |
929 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
930 | 0 | } |
931 | 0 | break; |
932 | 0 | case TIFF_SHORT: |
933 | 0 | { |
934 | 0 | uint16_t v2 = (uint16_t)va_arg(ap, int); |
935 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
936 | 0 | } |
937 | 0 | break; |
938 | 0 | case TIFF_SSHORT: |
939 | 0 | { |
940 | 0 | int16_t v2 = (int16_t)va_arg(ap, int); |
941 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
942 | 0 | } |
943 | 0 | break; |
944 | 0 | case TIFF_LONG: |
945 | 0 | case TIFF_IFD: |
946 | 0 | { |
947 | 0 | uint32_t v2 = va_arg(ap, uint32_t); |
948 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
949 | 0 | } |
950 | 0 | break; |
951 | 0 | case TIFF_SLONG: |
952 | 0 | { |
953 | 0 | int32_t v2 = va_arg(ap, int32_t); |
954 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
955 | 0 | } |
956 | 0 | break; |
957 | 0 | case TIFF_LONG8: |
958 | 0 | case TIFF_IFD8: |
959 | 0 | { |
960 | 0 | uint64_t v2 = va_arg(ap, uint64_t); |
961 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
962 | | /* Test here for too big values for ClassicTIFF and |
963 | | * delete custom field from custom list */ |
964 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF) && |
965 | 0 | (v2 > 0xffffffffu)) |
966 | 0 | { |
967 | 0 | TIFFErrorExtR( |
968 | 0 | tif, module, |
969 | 0 | "%s: Bad LONG8 or IFD8 value %" PRIu64 |
970 | 0 | " for \"%s\" tag %u in ClassicTIFF. Tag " |
971 | 0 | "won't be written to file", |
972 | 0 | tif->tif_name, v2, fip->field_name, tag); |
973 | 0 | goto badvalueifd8long8; |
974 | 0 | } |
975 | 0 | } |
976 | 0 | break; |
977 | 0 | case TIFF_SLONG8: |
978 | 0 | { |
979 | 0 | int64_t v2 = va_arg(ap, int64_t); |
980 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
981 | | /* Test here for too big values for ClassicTIFF and |
982 | | * delete custom field from custom list */ |
983 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF) && |
984 | 0 | ((v2 > 2147483647) || (v2 < (-2147483647 - 1)))) |
985 | 0 | { |
986 | 0 | TIFFErrorExtR( |
987 | 0 | tif, module, |
988 | 0 | "%s: Bad SLONG8 value %" PRIi64 |
989 | 0 | " for \"%s\" tag %u in ClassicTIFF. Tag " |
990 | 0 | "won't be written to file", |
991 | 0 | tif->tif_name, v2, fip->field_name, tag); |
992 | 0 | goto badvalueifd8long8; |
993 | 0 | } |
994 | 0 | } |
995 | 0 | break; |
996 | 0 | case TIFF_RATIONAL: |
997 | 0 | case TIFF_SRATIONAL: |
998 | | /*-- Rational2Double: For Rationals tv_size is set |
999 | | * above to 4 or 8 according to |
1000 | | * fip->set_get_field_type! |
1001 | | */ |
1002 | 0 | { |
1003 | 0 | if (tv_size == 8) |
1004 | 0 | { |
1005 | 0 | double v2 = va_arg(ap, double); |
1006 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
1007 | 0 | } |
1008 | 0 | else |
1009 | 0 | { |
1010 | | /*-- default should be tv_size == 4 */ |
1011 | 0 | float v3 = (float)va_arg(ap, double); |
1012 | 0 | _TIFFmemcpy(val, &v3, tv_size); |
1013 | | /*-- ToDo: After Testing, this should be |
1014 | | * removed and tv_size==4 should be set as |
1015 | | * default. */ |
1016 | 0 | if (tv_size != 4) |
1017 | 0 | { |
1018 | 0 | TIFFErrorExtR(tif, module, |
1019 | 0 | "Rational2Double: " |
1020 | 0 | ".set_get_field_type " |
1021 | 0 | "in not 4 but %d", |
1022 | 0 | tv_size); |
1023 | 0 | } |
1024 | 0 | } |
1025 | 0 | } |
1026 | 0 | break; |
1027 | 0 | case TIFF_FLOAT: |
1028 | 0 | { |
1029 | 0 | float v2 = |
1030 | 0 | _TIFFClampDoubleToFloat(va_arg(ap, double)); |
1031 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
1032 | 0 | } |
1033 | 0 | break; |
1034 | 0 | case TIFF_DOUBLE: |
1035 | 0 | { |
1036 | 0 | double v2 = va_arg(ap, double); |
1037 | 0 | _TIFFmemcpy(val, &v2, tv_size); |
1038 | 0 | } |
1039 | 0 | break; |
1040 | 0 | case TIFF_NOTYPE: |
1041 | 0 | case TIFF_ASCII: |
1042 | 0 | default: |
1043 | 0 | _TIFFmemset(val, 0, tv_size); |
1044 | 0 | status = 0; |
1045 | 0 | break; |
1046 | 0 | } |
1047 | 0 | } |
1048 | 0 | } |
1049 | 0 | } |
1050 | 127k | } |
1051 | 127k | if (status) |
1052 | 127k | { |
1053 | 127k | const TIFFField *fip2 = TIFFFieldWithTag(tif, tag); |
1054 | 127k | if (fip2) |
1055 | 127k | TIFFSetFieldBit(tif, fip2->field_bit); |
1056 | 127k | tif->tif_flags |= TIFF_DIRTYDIRECT; |
1057 | 127k | } |
1058 | | |
1059 | 127k | end: |
1060 | 127k | va_end(ap); |
1061 | 127k | return (status); |
1062 | 0 | badvalue: |
1063 | 0 | { |
1064 | 0 | const TIFFField *fip2 = TIFFFieldWithTag(tif, tag); |
1065 | 0 | TIFFErrorExtR(tif, module, "%s: Bad value %" PRIu32 " for \"%s\" tag", |
1066 | 0 | tif->tif_name, v, fip2 ? fip2->field_name : "Unknown"); |
1067 | 0 | va_end(ap); |
1068 | 0 | } |
1069 | 0 | return (0); |
1070 | 0 | badvalue32: |
1071 | 0 | { |
1072 | 0 | const TIFFField *fip2 = TIFFFieldWithTag(tif, tag); |
1073 | 0 | TIFFErrorExtR(tif, module, "%s: Bad value %" PRIu32 " for \"%s\" tag", |
1074 | 0 | tif->tif_name, v32, fip2 ? fip2->field_name : "Unknown"); |
1075 | 0 | va_end(ap); |
1076 | 0 | } |
1077 | 0 | return (0); |
1078 | 0 | badvaluedouble: |
1079 | 0 | { |
1080 | 0 | const TIFFField *fip2 = TIFFFieldWithTag(tif, tag); |
1081 | 0 | TIFFErrorExtR(tif, module, "%s: Bad value %f for \"%s\" tag", tif->tif_name, |
1082 | 0 | dblval, fip2 ? fip2->field_name : "Unknown"); |
1083 | 0 | va_end(ap); |
1084 | 0 | } |
1085 | 0 | return (0); |
1086 | 0 | badvalueifd8long8: |
1087 | 0 | { |
1088 | | /* Error message issued already above. */ |
1089 | 0 | TIFFTagValue *tv2 = NULL; |
1090 | 0 | int iCustom2, iC2; |
1091 | | /* Find the existing entry for this custom value. */ |
1092 | 0 | for (iCustom2 = 0; iCustom2 < td->td_customValueCount; iCustom2++) |
1093 | 0 | { |
1094 | 0 | if (td->td_customValues[iCustom2].info->field_tag == tag) |
1095 | 0 | { |
1096 | 0 | tv2 = td->td_customValues + (iCustom2); |
1097 | 0 | break; |
1098 | 0 | } |
1099 | 0 | } |
1100 | 0 | if (tv2 != NULL) |
1101 | 0 | { |
1102 | | /* Remove custom field from custom list */ |
1103 | 0 | if (tv2->value != NULL) |
1104 | 0 | { |
1105 | 0 | _TIFFfreeExt(tif, tv2->value); |
1106 | 0 | tv2->value = NULL; |
1107 | 0 | } |
1108 | | /* Shorten list and close gap in customValues list. |
1109 | | * Re-allocation of td_customValues not necessary here. */ |
1110 | 0 | td->td_customValueCount--; |
1111 | 0 | for (iC2 = iCustom2; iC2 < td->td_customValueCount; iC2++) |
1112 | 0 | { |
1113 | 0 | td->td_customValues[iC2] = td->td_customValues[iC2 + 1]; |
1114 | 0 | } |
1115 | 0 | } |
1116 | 0 | else |
1117 | 0 | { |
1118 | 0 | assert(0); |
1119 | 0 | } |
1120 | 0 | va_end(ap); |
1121 | 0 | } |
1122 | 0 | return (0); |
1123 | 0 | } /*-- _TIFFVSetField() --*/ |
1124 | | |
1125 | | /* |
1126 | | * Return 1/0 according to whether or not |
1127 | | * it is permissible to set the tag's value. |
1128 | | * Note that we allow ImageLength to be changed |
1129 | | * so that we can append and extend to images. |
1130 | | * Any other tag may not be altered once writing |
1131 | | * has commenced, unless its value has no effect |
1132 | | * on the format of the data that is written. |
1133 | | */ |
1134 | | static int OkToChangeTag(TIFF *tif, uint32_t tag) |
1135 | 146k | { |
1136 | 146k | const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY); |
1137 | 146k | if (!fip) |
1138 | 0 | { /* unknown tag */ |
1139 | 0 | TIFFErrorExtR(tif, "TIFFSetField", "%s: Unknown %stag %" PRIu32, |
1140 | 0 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", tag); |
1141 | 0 | return (0); |
1142 | 0 | } |
1143 | 146k | if (tag != TIFFTAG_IMAGELENGTH && (tif->tif_flags & TIFF_BEENWRITING) && |
1144 | 0 | !fip->field_oktochange) |
1145 | 0 | { |
1146 | | /* |
1147 | | * Consult info table to see if tag can be changed |
1148 | | * after we've started writing. We only allow changes |
1149 | | * to those tags that don't/shouldn't affect the |
1150 | | * compression and/or format of the data. |
1151 | | */ |
1152 | 0 | TIFFErrorExtR(tif, "TIFFSetField", |
1153 | 0 | "%s: Cannot modify tag \"%s\" while writing", |
1154 | 0 | tif->tif_name, fip->field_name); |
1155 | 0 | return (0); |
1156 | 0 | } |
1157 | 146k | return (1); |
1158 | 146k | } |
1159 | | |
1160 | | /* |
1161 | | * Record the value of a field in the |
1162 | | * internal directory structure. The |
1163 | | * field will be written to the file |
1164 | | * when/if the directory structure is |
1165 | | * updated. |
1166 | | */ |
1167 | | int TIFFSetField(TIFF *tif, uint32_t tag, ...) |
1168 | 146k | { |
1169 | 146k | va_list ap; |
1170 | 146k | int status; |
1171 | | |
1172 | 146k | va_start(ap, tag); |
1173 | 146k | status = TIFFVSetField(tif, tag, ap); |
1174 | 146k | va_end(ap); |
1175 | 146k | return (status); |
1176 | 146k | } |
1177 | | |
1178 | | /* |
1179 | | * Clear the contents of the field in the internal structure. |
1180 | | */ |
1181 | | int TIFFUnsetField(TIFF *tif, uint32_t tag) |
1182 | 0 | { |
1183 | 0 | const TIFFField *fip = TIFFFieldWithTag(tif, tag); |
1184 | 0 | TIFFDirectory *td = &tif->tif_dir; |
1185 | |
|
1186 | 0 | if (!fip) |
1187 | 0 | return 0; |
1188 | | |
1189 | 0 | if (fip->field_bit != FIELD_CUSTOM) |
1190 | 0 | TIFFClrFieldBit(tif, fip->field_bit); |
1191 | 0 | else |
1192 | 0 | { |
1193 | 0 | TIFFTagValue *tv = NULL; |
1194 | 0 | int i; |
1195 | |
|
1196 | 0 | for (i = 0; i < td->td_customValueCount; i++) |
1197 | 0 | { |
1198 | |
|
1199 | 0 | tv = td->td_customValues + i; |
1200 | 0 | if (tv->info->field_tag == tag) |
1201 | 0 | break; |
1202 | 0 | } |
1203 | |
|
1204 | 0 | if (i < td->td_customValueCount) |
1205 | 0 | { |
1206 | 0 | _TIFFfreeExt(tif, tv->value); |
1207 | 0 | for (; i < td->td_customValueCount - 1; i++) |
1208 | 0 | { |
1209 | 0 | td->td_customValues[i] = td->td_customValues[i + 1]; |
1210 | 0 | } |
1211 | 0 | td->td_customValueCount--; |
1212 | 0 | } |
1213 | 0 | } |
1214 | |
|
1215 | 0 | tif->tif_flags |= TIFF_DIRTYDIRECT; |
1216 | |
|
1217 | 0 | return (1); |
1218 | 0 | } |
1219 | | |
1220 | | /* |
1221 | | * Like TIFFSetField, but taking a varargs |
1222 | | * parameter list. This routine is useful |
1223 | | * for building higher-level interfaces on |
1224 | | * top of the library. |
1225 | | */ |
1226 | | int TIFFVSetField(TIFF *tif, uint32_t tag, va_list ap) |
1227 | 146k | { |
1228 | 146k | return OkToChangeTag(tif, tag) |
1229 | 146k | ? (*tif->tif_tagmethods.vsetfield)(tif, tag, ap) |
1230 | 146k | : 0; |
1231 | 146k | } |
1232 | | |
1233 | | static int _TIFFVGetField(TIFF *tif, uint32_t tag, va_list ap) |
1234 | 91.2k | { |
1235 | 91.2k | TIFFDirectory *td = &tif->tif_dir; |
1236 | 91.2k | int ret_val = 1; |
1237 | 91.2k | uint32_t standard_tag = tag; |
1238 | 91.2k | const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY); |
1239 | 91.2k | if (fip == NULL) /* cannot happen since TIFFGetField() already checks it */ |
1240 | 0 | return 0; |
1241 | | |
1242 | | /* |
1243 | | * We want to force the custom code to be used for custom |
1244 | | * fields even if the tag happens to match a well known |
1245 | | * one - important for reinterpreted handling of standard |
1246 | | * tag values in custom directories (i.e. EXIF) |
1247 | | */ |
1248 | 91.2k | if (fip->field_bit == FIELD_CUSTOM) |
1249 | 0 | { |
1250 | 0 | standard_tag = 0; |
1251 | 0 | } |
1252 | | |
1253 | 91.2k | switch (standard_tag) |
1254 | 91.2k | { |
1255 | 0 | case TIFFTAG_SUBFILETYPE: |
1256 | 0 | *va_arg(ap, uint32_t *) = td->td_subfiletype; |
1257 | 0 | break; |
1258 | 9.12k | case TIFFTAG_IMAGEWIDTH: |
1259 | 9.12k | *va_arg(ap, uint32_t *) = td->td_imagewidth; |
1260 | 9.12k | break; |
1261 | 9.12k | case TIFFTAG_IMAGELENGTH: |
1262 | 9.12k | *va_arg(ap, uint32_t *) = td->td_imagelength; |
1263 | 9.12k | break; |
1264 | 9.12k | case TIFFTAG_BITSPERSAMPLE: |
1265 | 9.12k | *va_arg(ap, uint16_t *) = td->td_bitspersample; |
1266 | 9.12k | break; |
1267 | 9.12k | case TIFFTAG_COMPRESSION: |
1268 | 9.12k | *va_arg(ap, uint16_t *) = td->td_compression; |
1269 | 9.12k | break; |
1270 | 9.12k | case TIFFTAG_PHOTOMETRIC: |
1271 | 9.12k | *va_arg(ap, uint16_t *) = td->td_photometric; |
1272 | 9.12k | break; |
1273 | 0 | case TIFFTAG_THRESHHOLDING: |
1274 | 0 | *va_arg(ap, uint16_t *) = td->td_threshholding; |
1275 | 0 | break; |
1276 | 0 | case TIFFTAG_FILLORDER: |
1277 | 0 | *va_arg(ap, uint16_t *) = td->td_fillorder; |
1278 | 0 | break; |
1279 | 9.12k | case TIFFTAG_ORIENTATION: |
1280 | 9.12k | *va_arg(ap, uint16_t *) = td->td_orientation; |
1281 | 9.12k | break; |
1282 | 9.12k | case TIFFTAG_SAMPLESPERPIXEL: |
1283 | 9.12k | *va_arg(ap, uint16_t *) = td->td_samplesperpixel; |
1284 | 9.12k | break; |
1285 | 0 | case TIFFTAG_ROWSPERSTRIP: |
1286 | 0 | *va_arg(ap, uint32_t *) = td->td_rowsperstrip; |
1287 | 0 | break; |
1288 | 0 | case TIFFTAG_MINSAMPLEVALUE: |
1289 | 0 | *va_arg(ap, uint16_t *) = td->td_minsamplevalue; |
1290 | 0 | break; |
1291 | 0 | case TIFFTAG_MAXSAMPLEVALUE: |
1292 | 0 | *va_arg(ap, uint16_t *) = td->td_maxsamplevalue; |
1293 | 0 | break; |
1294 | 0 | case TIFFTAG_SMINSAMPLEVALUE: |
1295 | 0 | if (tif->tif_flags & TIFF_PERSAMPLE) |
1296 | 0 | *va_arg(ap, double **) = td->td_sminsamplevalue; |
1297 | 0 | else |
1298 | 0 | { |
1299 | | /* libtiff historically treats this as a single value. */ |
1300 | 0 | uint16_t i; |
1301 | 0 | double v = td->td_sminsamplevalue[0]; |
1302 | 0 | for (i = 1; i < td->td_samplesperpixel; ++i) |
1303 | 0 | if (td->td_sminsamplevalue[i] < v) |
1304 | 0 | v = td->td_sminsamplevalue[i]; |
1305 | 0 | *va_arg(ap, double *) = v; |
1306 | 0 | } |
1307 | 0 | break; |
1308 | 0 | case TIFFTAG_SMAXSAMPLEVALUE: |
1309 | 0 | if (tif->tif_flags & TIFF_PERSAMPLE) |
1310 | 0 | *va_arg(ap, double **) = td->td_smaxsamplevalue; |
1311 | 0 | else |
1312 | 0 | { |
1313 | | /* libtiff historically treats this as a single value. */ |
1314 | 0 | uint16_t i; |
1315 | 0 | double v = td->td_smaxsamplevalue[0]; |
1316 | 0 | for (i = 1; i < td->td_samplesperpixel; ++i) |
1317 | 0 | if (td->td_smaxsamplevalue[i] > v) |
1318 | 0 | v = td->td_smaxsamplevalue[i]; |
1319 | 0 | *va_arg(ap, double *) = v; |
1320 | 0 | } |
1321 | 0 | break; |
1322 | 9.12k | case TIFFTAG_XRESOLUTION: |
1323 | 9.12k | *va_arg(ap, float *) = td->td_xresolution; |
1324 | 9.12k | break; |
1325 | 9.12k | case TIFFTAG_YRESOLUTION: |
1326 | 9.12k | *va_arg(ap, float *) = td->td_yresolution; |
1327 | 9.12k | break; |
1328 | 0 | case TIFFTAG_PLANARCONFIG: |
1329 | 0 | *va_arg(ap, uint16_t *) = td->td_planarconfig; |
1330 | 0 | break; |
1331 | 0 | case TIFFTAG_XPOSITION: |
1332 | 0 | *va_arg(ap, float *) = td->td_xposition; |
1333 | 0 | break; |
1334 | 0 | case TIFFTAG_YPOSITION: |
1335 | 0 | *va_arg(ap, float *) = td->td_yposition; |
1336 | 0 | break; |
1337 | 9.12k | case TIFFTAG_RESOLUTIONUNIT: |
1338 | 9.12k | *va_arg(ap, uint16_t *) = td->td_resolutionunit; |
1339 | 9.12k | break; |
1340 | 0 | case TIFFTAG_PAGENUMBER: |
1341 | 0 | *va_arg(ap, uint16_t *) = td->td_pagenumber[0]; |
1342 | 0 | *va_arg(ap, uint16_t *) = td->td_pagenumber[1]; |
1343 | 0 | break; |
1344 | 0 | case TIFFTAG_HALFTONEHINTS: |
1345 | 0 | *va_arg(ap, uint16_t *) = td->td_halftonehints[0]; |
1346 | 0 | *va_arg(ap, uint16_t *) = td->td_halftonehints[1]; |
1347 | 0 | break; |
1348 | 0 | case TIFFTAG_COLORMAP: |
1349 | 0 | *va_arg(ap, const uint16_t **) = td->td_colormap[0]; |
1350 | 0 | *va_arg(ap, const uint16_t **) = td->td_colormap[1]; |
1351 | 0 | *va_arg(ap, const uint16_t **) = td->td_colormap[2]; |
1352 | 0 | break; |
1353 | 0 | case TIFFTAG_STRIPOFFSETS: |
1354 | 0 | case TIFFTAG_TILEOFFSETS: |
1355 | 0 | _TIFFFillStriles(tif); |
1356 | 0 | *va_arg(ap, const uint64_t **) = td->td_stripoffset_p; |
1357 | 0 | if (td->td_stripoffset_p == NULL) |
1358 | 0 | ret_val = 0; |
1359 | 0 | break; |
1360 | 0 | case TIFFTAG_STRIPBYTECOUNTS: |
1361 | 0 | case TIFFTAG_TILEBYTECOUNTS: |
1362 | 0 | _TIFFFillStriles(tif); |
1363 | 0 | *va_arg(ap, const uint64_t **) = td->td_stripbytecount_p; |
1364 | 0 | if (td->td_stripbytecount_p == NULL) |
1365 | 0 | ret_val = 0; |
1366 | 0 | break; |
1367 | 0 | case TIFFTAG_MATTEING: |
1368 | 0 | *va_arg(ap, uint16_t *) = |
1369 | 0 | (td->td_extrasamples == 1 && td->td_sampleinfo && |
1370 | 0 | td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); |
1371 | 0 | break; |
1372 | 0 | case TIFFTAG_EXTRASAMPLES: |
1373 | 0 | *va_arg(ap, uint16_t *) = td->td_extrasamples; |
1374 | 0 | *va_arg(ap, const uint16_t **) = td->td_sampleinfo; |
1375 | 0 | break; |
1376 | 0 | case TIFFTAG_TILEWIDTH: |
1377 | 0 | *va_arg(ap, uint32_t *) = td->td_tilewidth; |
1378 | 0 | break; |
1379 | 0 | case TIFFTAG_TILELENGTH: |
1380 | 0 | *va_arg(ap, uint32_t *) = td->td_tilelength; |
1381 | 0 | break; |
1382 | 0 | case TIFFTAG_TILEDEPTH: |
1383 | 0 | *va_arg(ap, uint32_t *) = td->td_tiledepth; |
1384 | 0 | break; |
1385 | 0 | case TIFFTAG_DATATYPE: |
1386 | 0 | switch (td->td_sampleformat) |
1387 | 0 | { |
1388 | 0 | case SAMPLEFORMAT_UINT: |
1389 | 0 | *va_arg(ap, uint16_t *) = DATATYPE_UINT; |
1390 | 0 | break; |
1391 | 0 | case SAMPLEFORMAT_INT: |
1392 | 0 | *va_arg(ap, uint16_t *) = DATATYPE_INT; |
1393 | 0 | break; |
1394 | 0 | case SAMPLEFORMAT_IEEEFP: |
1395 | 0 | *va_arg(ap, uint16_t *) = DATATYPE_IEEEFP; |
1396 | 0 | break; |
1397 | 0 | case SAMPLEFORMAT_VOID: |
1398 | 0 | *va_arg(ap, uint16_t *) = DATATYPE_VOID; |
1399 | 0 | break; |
1400 | 0 | default: |
1401 | 0 | break; |
1402 | 0 | } |
1403 | 0 | break; |
1404 | 0 | case TIFFTAG_SAMPLEFORMAT: |
1405 | 0 | *va_arg(ap, uint16_t *) = td->td_sampleformat; |
1406 | 0 | break; |
1407 | 0 | case TIFFTAG_IMAGEDEPTH: |
1408 | 0 | *va_arg(ap, uint32_t *) = td->td_imagedepth; |
1409 | 0 | break; |
1410 | 0 | case TIFFTAG_SUBIFD: |
1411 | 0 | *va_arg(ap, uint16_t *) = td->td_nsubifd; |
1412 | 0 | *va_arg(ap, const uint64_t **) = td->td_subifd; |
1413 | 0 | break; |
1414 | 0 | case TIFFTAG_YCBCRPOSITIONING: |
1415 | 0 | *va_arg(ap, uint16_t *) = td->td_ycbcrpositioning; |
1416 | 0 | break; |
1417 | 0 | case TIFFTAG_YCBCRSUBSAMPLING: |
1418 | 0 | *va_arg(ap, uint16_t *) = td->td_ycbcrsubsampling[0]; |
1419 | 0 | *va_arg(ap, uint16_t *) = td->td_ycbcrsubsampling[1]; |
1420 | 0 | break; |
1421 | 0 | case TIFFTAG_TRANSFERFUNCTION: |
1422 | 0 | *va_arg(ap, const uint16_t **) = td->td_transferfunction[0]; |
1423 | 0 | if (td->td_samplesperpixel - td->td_extrasamples > 1) |
1424 | 0 | { |
1425 | 0 | *va_arg(ap, const uint16_t **) = td->td_transferfunction[1]; |
1426 | 0 | *va_arg(ap, const uint16_t **) = td->td_transferfunction[2]; |
1427 | 0 | } |
1428 | 0 | else |
1429 | 0 | { |
1430 | 0 | *va_arg(ap, const uint16_t **) = NULL; |
1431 | 0 | *va_arg(ap, const uint16_t **) = NULL; |
1432 | 0 | } |
1433 | 0 | break; |
1434 | 0 | case TIFFTAG_REFERENCEBLACKWHITE: |
1435 | 0 | *va_arg(ap, const float **) = td->td_refblackwhite; |
1436 | 0 | break; |
1437 | 0 | case TIFFTAG_INKNAMES: |
1438 | 0 | *va_arg(ap, const char **) = td->td_inknames; |
1439 | 0 | break; |
1440 | 0 | case TIFFTAG_NUMBEROFINKS: |
1441 | 0 | *va_arg(ap, uint16_t *) = td->td_numberofinks; |
1442 | 0 | break; |
1443 | 0 | default: |
1444 | 0 | { |
1445 | 0 | int i; |
1446 | | |
1447 | | /* |
1448 | | * This can happen if multiple images are open |
1449 | | * with different codecs which have private |
1450 | | * tags. The global tag information table may |
1451 | | * then have tags that are valid for one file |
1452 | | * but not the other. If the client tries to |
1453 | | * get a tag that is not valid for the image's |
1454 | | * codec then we'll arrive here. |
1455 | | */ |
1456 | 0 | if (fip->field_bit != FIELD_CUSTOM) |
1457 | 0 | { |
1458 | 0 | TIFFErrorExtR(tif, "_TIFFVGetField", |
1459 | 0 | "%s: Invalid %stag \"%s\" " |
1460 | 0 | "(not supported by codec)", |
1461 | 0 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", |
1462 | 0 | fip->field_name); |
1463 | 0 | ret_val = 0; |
1464 | 0 | break; |
1465 | 0 | } |
1466 | | |
1467 | | /* |
1468 | | * Do we have a custom value? |
1469 | | */ |
1470 | 0 | ret_val = 0; |
1471 | 0 | for (i = 0; i < td->td_customValueCount; i++) |
1472 | 0 | { |
1473 | 0 | TIFFTagValue *tv = td->td_customValues + i; |
1474 | |
|
1475 | 0 | if (tv->info->field_tag != tag) |
1476 | 0 | continue; |
1477 | | |
1478 | 0 | if (fip->field_passcount) |
1479 | 0 | { |
1480 | 0 | if (fip->field_readcount == TIFF_VARIABLE2) |
1481 | 0 | *va_arg(ap, uint32_t *) = (uint32_t)tv->count; |
1482 | 0 | else /* Assume TIFF_VARIABLE */ |
1483 | 0 | *va_arg(ap, uint16_t *) = (uint16_t)tv->count; |
1484 | 0 | *va_arg(ap, const void **) = tv->value; |
1485 | 0 | ret_val = 1; |
1486 | 0 | } |
1487 | 0 | else if (fip->field_tag == TIFFTAG_DOTRANGE && |
1488 | 0 | strcmp(fip->field_name, "DotRange") == 0) |
1489 | 0 | { |
1490 | | /* TODO: This is an evil exception and should not have been |
1491 | | handled this way ... likely best if we move it into |
1492 | | the directory structure with an explicit field in |
1493 | | libtiff 4.1 and assign it a FIELD_ value */ |
1494 | 0 | *va_arg(ap, uint16_t *) = ((uint16_t *)tv->value)[0]; |
1495 | 0 | *va_arg(ap, uint16_t *) = ((uint16_t *)tv->value)[1]; |
1496 | 0 | ret_val = 1; |
1497 | 0 | } |
1498 | 0 | else |
1499 | 0 | { |
1500 | 0 | if (fip->field_type == TIFF_ASCII || |
1501 | 0 | fip->field_readcount == TIFF_VARIABLE || |
1502 | 0 | fip->field_readcount == TIFF_VARIABLE2 || |
1503 | 0 | fip->field_readcount == TIFF_SPP || tv->count > 1) |
1504 | 0 | { |
1505 | 0 | *va_arg(ap, void **) = tv->value; |
1506 | 0 | ret_val = 1; |
1507 | 0 | } |
1508 | 0 | else |
1509 | 0 | { |
1510 | 0 | char *val = (char *)tv->value; |
1511 | 0 | assert(tv->count == 1); |
1512 | 0 | switch (fip->field_type) |
1513 | 0 | { |
1514 | 0 | case TIFF_BYTE: |
1515 | 0 | case TIFF_UNDEFINED: |
1516 | 0 | *va_arg(ap, uint8_t *) = *(uint8_t *)val; |
1517 | 0 | ret_val = 1; |
1518 | 0 | break; |
1519 | 0 | case TIFF_SBYTE: |
1520 | 0 | *va_arg(ap, int8_t *) = *(int8_t *)val; |
1521 | 0 | ret_val = 1; |
1522 | 0 | break; |
1523 | 0 | case TIFF_SHORT: |
1524 | 0 | *va_arg(ap, uint16_t *) = *(uint16_t *)val; |
1525 | 0 | ret_val = 1; |
1526 | 0 | break; |
1527 | 0 | case TIFF_SSHORT: |
1528 | 0 | *va_arg(ap, int16_t *) = *(int16_t *)val; |
1529 | 0 | ret_val = 1; |
1530 | 0 | break; |
1531 | 0 | case TIFF_LONG: |
1532 | 0 | case TIFF_IFD: |
1533 | 0 | *va_arg(ap, uint32_t *) = *(uint32_t *)val; |
1534 | 0 | ret_val = 1; |
1535 | 0 | break; |
1536 | 0 | case TIFF_SLONG: |
1537 | 0 | *va_arg(ap, int32_t *) = *(int32_t *)val; |
1538 | 0 | ret_val = 1; |
1539 | 0 | break; |
1540 | 0 | case TIFF_LONG8: |
1541 | 0 | case TIFF_IFD8: |
1542 | 0 | *va_arg(ap, uint64_t *) = *(uint64_t *)val; |
1543 | 0 | ret_val = 1; |
1544 | 0 | break; |
1545 | 0 | case TIFF_SLONG8: |
1546 | 0 | *va_arg(ap, int64_t *) = *(int64_t *)val; |
1547 | 0 | ret_val = 1; |
1548 | 0 | break; |
1549 | 0 | case TIFF_RATIONAL: |
1550 | 0 | case TIFF_SRATIONAL: |
1551 | 0 | { |
1552 | | /*-- Rational2Double: For Rationals evaluate |
1553 | | * "set_get_field_type" to determine internal |
1554 | | * storage size and return value size. */ |
1555 | 0 | int tv_size = TIFFFieldSetGetSize(fip); |
1556 | 0 | if (tv_size == 8) |
1557 | 0 | { |
1558 | 0 | *va_arg(ap, double *) = *(double *)val; |
1559 | 0 | ret_val = 1; |
1560 | 0 | } |
1561 | 0 | else |
1562 | 0 | { |
1563 | | /*-- default should be tv_size == 4 */ |
1564 | 0 | *va_arg(ap, float *) = *(float *)val; |
1565 | 0 | ret_val = 1; |
1566 | | /*-- ToDo: After Testing, this should be |
1567 | | * removed and tv_size==4 should be set as |
1568 | | * default. */ |
1569 | 0 | if (tv_size != 4) |
1570 | 0 | { |
1571 | 0 | TIFFErrorExtR(tif, "_TIFFVGetField", |
1572 | 0 | "Rational2Double: " |
1573 | 0 | ".set_get_field_type " |
1574 | 0 | "in not 4 but %d", |
1575 | 0 | tv_size); |
1576 | 0 | } |
1577 | 0 | } |
1578 | 0 | } |
1579 | 0 | break; |
1580 | 0 | case TIFF_FLOAT: |
1581 | 0 | *va_arg(ap, float *) = *(float *)val; |
1582 | 0 | ret_val = 1; |
1583 | 0 | break; |
1584 | 0 | case TIFF_DOUBLE: |
1585 | 0 | *va_arg(ap, double *) = *(double *)val; |
1586 | 0 | ret_val = 1; |
1587 | 0 | break; |
1588 | 0 | case TIFF_NOTYPE: |
1589 | 0 | case TIFF_ASCII: |
1590 | 0 | default: |
1591 | 0 | ret_val = 0; |
1592 | 0 | break; |
1593 | 0 | } |
1594 | 0 | } |
1595 | 0 | } |
1596 | 0 | break; |
1597 | 0 | } |
1598 | 0 | } |
1599 | 91.2k | } |
1600 | 91.2k | return (ret_val); |
1601 | 91.2k | } |
1602 | | |
1603 | | /* |
1604 | | * Return the value of a field in the |
1605 | | * internal directory structure. |
1606 | | */ |
1607 | | int TIFFGetField(TIFF *tif, uint32_t tag, ...) |
1608 | 73.0k | { |
1609 | 73.0k | int status; |
1610 | 73.0k | va_list ap; |
1611 | | |
1612 | 73.0k | va_start(ap, tag); |
1613 | 73.0k | status = TIFFVGetField(tif, tag, ap); |
1614 | 73.0k | va_end(ap); |
1615 | 73.0k | return (status); |
1616 | 73.0k | } |
1617 | | |
1618 | | /* |
1619 | | * Like TIFFGetField, but taking a varargs |
1620 | | * parameter list. This routine is useful |
1621 | | * for building higher-level interfaces on |
1622 | | * top of the library. |
1623 | | */ |
1624 | | int TIFFVGetField(TIFF *tif, uint32_t tag, va_list ap) |
1625 | 118k | { |
1626 | 118k | const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY); |
1627 | 118k | return (fip && (isPseudoTag(tag) || TIFFFieldSet(tif, fip->field_bit)) |
1628 | 118k | ? (*tif->tif_tagmethods.vgetfield)(tif, tag, ap) |
1629 | 118k | : 0); |
1630 | 118k | } |
1631 | | |
1632 | | #define CleanupField(member) \ |
1633 | 273k | { \ |
1634 | 273k | if (td->member) \ |
1635 | 273k | { \ |
1636 | 18.2k | _TIFFfreeExt(tif, td->member); \ |
1637 | 18.2k | td->member = 0; \ |
1638 | 18.2k | } \ |
1639 | 273k | } |
1640 | | |
1641 | | /* |
1642 | | * Reset tif->tif_dir structure to zero and |
1643 | | * initialize some IFD strile counter and index parameters. |
1644 | | */ |
1645 | | void _TIFFResetTifDirAndInitStrileCounters(TIFFDirectory *td) |
1646 | 18.2k | { |
1647 | 18.2k | _TIFFmemset(td, 0, sizeof(*td)); |
1648 | 18.2k | td->td_curstrip = NOSTRIP; /* invalid strip = NOSTRIP */ |
1649 | 18.2k | td->td_row = (uint32_t)-1; /* read/write pre-increment */ |
1650 | 18.2k | td->td_col = (uint32_t)-1; /* read/write pre-increment */ |
1651 | 18.2k | td->td_scanlinesize = 0; /* initialize to zero */ |
1652 | 18.2k | td->td_curtile = NOTILE; /* invalid tile = NOTILE */ |
1653 | 18.2k | td->td_tilesize = (tmsize_t)-1; /* invalidate tilezize */ |
1654 | 18.2k | } |
1655 | | |
1656 | | /* |
1657 | | * Release storage associated with a directory. |
1658 | | */ |
1659 | | void TIFFFreeDirectory(TIFF *tif) |
1660 | 18.2k | { |
1661 | 18.2k | TIFFDirectory *td = &tif->tif_dir; |
1662 | 18.2k | int i; |
1663 | | |
1664 | 18.2k | (*tif->tif_cleanup)(tif); |
1665 | 18.2k | _TIFFmemset(td->td_fieldsset, 0, sizeof(td->td_fieldsset)); |
1666 | 18.2k | CleanupField(td_sminsamplevalue); |
1667 | 18.2k | CleanupField(td_smaxsamplevalue); |
1668 | 18.2k | CleanupField(td_colormap[0]); |
1669 | 18.2k | CleanupField(td_colormap[1]); |
1670 | 18.2k | CleanupField(td_colormap[2]); |
1671 | 18.2k | CleanupField(td_sampleinfo); |
1672 | 18.2k | CleanupField(td_subifd); |
1673 | 18.2k | CleanupField(td_inknames); |
1674 | 18.2k | CleanupField(td_refblackwhite); |
1675 | 18.2k | CleanupField(td_transferfunction[0]); |
1676 | 18.2k | CleanupField(td_transferfunction[1]); |
1677 | 18.2k | CleanupField(td_transferfunction[2]); |
1678 | 18.2k | CleanupField(td_stripoffset_p); |
1679 | 18.2k | CleanupField(td_stripbytecount_p); |
1680 | 18.2k | td->td_stripoffsetbyteallocsize = 0; |
1681 | 18.2k | TIFFClrFieldBit(tif, FIELD_YCBCRSUBSAMPLING); |
1682 | 18.2k | TIFFClrFieldBit(tif, FIELD_YCBCRPOSITIONING); |
1683 | | |
1684 | | /* Cleanup custom tag values */ |
1685 | 18.2k | for (i = 0; i < td->td_customValueCount; i++) |
1686 | 0 | { |
1687 | 0 | if (td->td_customValues[i].value) |
1688 | 0 | _TIFFfreeExt(tif, td->td_customValues[i].value); |
1689 | 0 | } |
1690 | | |
1691 | 18.2k | td->td_customValueCount = 0; |
1692 | 18.2k | CleanupField(td_customValues); |
1693 | | |
1694 | 18.2k | _TIFFmemset(&(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); |
1695 | 18.2k | _TIFFmemset(&(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); |
1696 | | |
1697 | | /* Reset some internal parameters for IFD data size checking. */ |
1698 | 18.2k | tif->tif_dir.td_dirdatasize_read = 0; |
1699 | 18.2k | tif->tif_dir.td_dirdatasize_write = 0; |
1700 | 18.2k | if (tif->tif_dir.td_dirdatasize_offsets != NULL) |
1701 | 9.12k | { |
1702 | 9.12k | _TIFFfreeExt(tif, tif->tif_dir.td_dirdatasize_offsets); |
1703 | 9.12k | tif->tif_dir.td_dirdatasize_offsets = NULL; |
1704 | 9.12k | tif->tif_dir.td_dirdatasize_Noffsets = 0; |
1705 | 9.12k | } |
1706 | 18.2k | tif->tif_dir.td_iswrittentofile = FALSE; |
1707 | | /* Note: tif->tif_dir structure is set to zero in TIFFDefaultDirectory() */ |
1708 | 18.2k | } |
1709 | | #undef CleanupField |
1710 | | |
1711 | | /* |
1712 | | * Client Tag extension support (from Niles Ritter). |
1713 | | */ |
1714 | | static TIFFExtendProc _TIFFextender = (TIFFExtendProc)NULL; |
1715 | | |
1716 | | TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc extender) |
1717 | 0 | { |
1718 | 0 | TIFFExtendProc prev = _TIFFextender; |
1719 | 0 | _TIFFextender = extender; |
1720 | 0 | return (prev); |
1721 | 0 | } |
1722 | | |
1723 | | /* |
1724 | | * Setup for a new directory. Should we automatically call |
1725 | | * TIFFWriteDirectory() if the current one is dirty? |
1726 | | * |
1727 | | * The newly created directory will not exist on the file till |
1728 | | * TIFFWriteDirectory(), TIFFFlush() or TIFFClose() is called. |
1729 | | */ |
1730 | | int TIFFCreateDirectory(TIFF *tif) |
1731 | 0 | { |
1732 | | /* Free previously allocated memory and setup default values. */ |
1733 | 0 | TIFFFreeDirectory(tif); |
1734 | 0 | TIFFDefaultDirectory(tif); |
1735 | 0 | tif->tif_diroff = 0; |
1736 | 0 | tif->tif_nextdiroff = 0; |
1737 | 0 | tif->tif_curoff = 0; |
1738 | 0 | tif->tif_dir.td_iswrittentofile = FALSE; |
1739 | 0 | return 0; |
1740 | 0 | } |
1741 | | |
1742 | | int TIFFCreateCustomDirectory(TIFF *tif, const TIFFFieldArray *infoarray) |
1743 | 0 | { |
1744 | | /* Free previously allocated memory and setup default values. */ |
1745 | 0 | TIFFFreeDirectory(tif); |
1746 | 0 | TIFFDefaultDirectory(tif); |
1747 | | |
1748 | | /* |
1749 | | * Reset the field definitions to match the application provided list. |
1750 | | * Hopefully TIFFDefaultDirectory() won't have done anything irreversible |
1751 | | * based on it's assumption this is an image directory. |
1752 | | */ |
1753 | 0 | _TIFFSetupFields(tif, infoarray); |
1754 | |
|
1755 | 0 | tif->tif_diroff = 0; |
1756 | 0 | tif->tif_nextdiroff = 0; |
1757 | 0 | tif->tif_curoff = 0; |
1758 | | /* invalidate directory index */ |
1759 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
1760 | | /* invalidate IFD loop lists */ |
1761 | 0 | _TIFFCleanupIFDOffsetAndNumberMaps(tif); |
1762 | | /* To be able to return from SubIFD or custom-IFD to main-IFD */ |
1763 | 0 | tif->tif_setdirectory_force_absolute = TRUE; |
1764 | 0 | return 0; |
1765 | 0 | } |
1766 | | |
1767 | | int TIFFCreateEXIFDirectory(TIFF *tif) |
1768 | 0 | { |
1769 | 0 | const TIFFFieldArray *exifFieldArray; |
1770 | 0 | exifFieldArray = _TIFFGetExifFields(); |
1771 | 0 | return TIFFCreateCustomDirectory(tif, exifFieldArray); |
1772 | 0 | } |
1773 | | |
1774 | | /* |
1775 | | * Creates the EXIF GPS custom directory |
1776 | | */ |
1777 | | int TIFFCreateGPSDirectory(TIFF *tif) |
1778 | 0 | { |
1779 | 0 | const TIFFFieldArray *gpsFieldArray; |
1780 | 0 | gpsFieldArray = _TIFFGetGpsFields(); |
1781 | 0 | return TIFFCreateCustomDirectory(tif, gpsFieldArray); |
1782 | 0 | } |
1783 | | |
1784 | | /* |
1785 | | * Setup a default directory structure. |
1786 | | */ |
1787 | | int TIFFDefaultDirectory(TIFF *tif) |
1788 | 9.12k | { |
1789 | 9.12k | TIFFDirectory *td = &tif->tif_dir; |
1790 | 9.12k | const TIFFFieldArray *tiffFieldArray; |
1791 | | |
1792 | 9.12k | tiffFieldArray = _TIFFGetFields(); |
1793 | 9.12k | _TIFFSetupFields(tif, tiffFieldArray); |
1794 | | /* Reset tif->tif_dir structure to zero and |
1795 | | * initialize some IFD strile counter and index parameters. */ |
1796 | 9.12k | _TIFFResetTifDirAndInitStrileCounters(td); |
1797 | 9.12k | td->td_fillorder = FILLORDER_MSB2LSB; |
1798 | 9.12k | td->td_bitspersample = 1; |
1799 | 9.12k | td->td_threshholding = THRESHHOLD_BILEVEL; |
1800 | 9.12k | td->td_orientation = ORIENTATION_TOPLEFT; |
1801 | 9.12k | td->td_samplesperpixel = 1; |
1802 | 9.12k | td->td_rowsperstrip = (uint32_t)-1; |
1803 | 9.12k | td->td_tilewidth = 0; |
1804 | 9.12k | td->td_tilelength = 0; |
1805 | 9.12k | td->td_tiledepth = 1; |
1806 | | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
1807 | | td->td_stripbytecountsorted = 1; /* Our own arrays always sorted. */ |
1808 | | #endif |
1809 | 9.12k | td->td_resolutionunit = RESUNIT_INCH; |
1810 | 9.12k | td->td_sampleformat = SAMPLEFORMAT_UINT; |
1811 | 9.12k | td->td_imagedepth = 1; |
1812 | 9.12k | td->td_ycbcrsubsampling[0] = 2; |
1813 | 9.12k | td->td_ycbcrsubsampling[1] = 2; |
1814 | 9.12k | td->td_ycbcrpositioning = YCBCRPOSITION_CENTERED; |
1815 | 9.12k | tif->tif_postdecode = _TIFFNoPostDecode; |
1816 | 9.12k | tif->tif_foundfield = NULL; |
1817 | 9.12k | tif->tif_tagmethods.vsetfield = _TIFFVSetField; |
1818 | 9.12k | tif->tif_tagmethods.vgetfield = _TIFFVGetField; |
1819 | 9.12k | tif->tif_tagmethods.printdir = NULL; |
1820 | | /* additional default values */ |
1821 | 9.12k | td->td_planarconfig = PLANARCONFIG_CONTIG; |
1822 | 9.12k | td->td_compression = COMPRESSION_NONE; |
1823 | 9.12k | td->td_subfiletype = 0; |
1824 | 9.12k | td->td_minsamplevalue = 0; |
1825 | | /* td_bitspersample=1 is always set in TIFFDefaultDirectory(). |
1826 | | * Therefore, td_maxsamplevalue has to be re-calculated in |
1827 | | * TIFFGetFieldDefaulted(). */ |
1828 | 9.12k | td->td_maxsamplevalue = 1; /* Default for td_bitspersample=1 */ |
1829 | 9.12k | td->td_extrasamples = 0; |
1830 | 9.12k | td->td_sampleinfo = NULL; |
1831 | | |
1832 | | /* |
1833 | | * Give client code a chance to install their own |
1834 | | * tag extensions & methods, prior to compression overloads, |
1835 | | * but do some prior cleanup first. |
1836 | | * (http://trac.osgeo.org/gdal/ticket/5054) |
1837 | | */ |
1838 | 9.12k | if (tif->tif_nfieldscompat > 0) |
1839 | 0 | { |
1840 | 0 | uint32_t i; |
1841 | |
|
1842 | 0 | for (i = 0; i < tif->tif_nfieldscompat; i++) |
1843 | 0 | { |
1844 | 0 | if (tif->tif_fieldscompat[i].allocated_size) |
1845 | 0 | _TIFFfreeExt(tif, tif->tif_fieldscompat[i].fields); |
1846 | 0 | } |
1847 | 0 | _TIFFfreeExt(tif, tif->tif_fieldscompat); |
1848 | 0 | tif->tif_nfieldscompat = 0; |
1849 | 0 | tif->tif_fieldscompat = NULL; |
1850 | 0 | } |
1851 | 9.12k | if (_TIFFextender) |
1852 | 0 | (*_TIFFextender)(tif); |
1853 | 9.12k | (void)TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); |
1854 | | /* |
1855 | | * NB: The directory is marked dirty as a result of setting |
1856 | | * up the default compression scheme. However, this really |
1857 | | * isn't correct -- we want TIFF_DIRTYDIRECT to be set only |
1858 | | * if the user does something. We could just do the setup |
1859 | | * by hand, but it seems better to use the normal mechanism |
1860 | | * (i.e. TIFFSetField). |
1861 | | */ |
1862 | 9.12k | tif->tif_flags &= ~TIFF_DIRTYDIRECT; |
1863 | | |
1864 | | /* |
1865 | | * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 |
1866 | | * we clear the ISTILED flag when setting up a new directory. |
1867 | | * Should we also be clearing stuff like INSUBIFD? |
1868 | | */ |
1869 | 9.12k | tif->tif_flags &= ~TIFF_ISTILED; |
1870 | | |
1871 | 9.12k | return (1); |
1872 | 9.12k | } |
1873 | | |
1874 | | static int TIFFAdvanceDirectory(TIFF *tif, uint64_t *nextdiroff, uint64_t *off, |
1875 | | tdir_t *nextdirnum) |
1876 | 0 | { |
1877 | 0 | static const char module[] = "TIFFAdvanceDirectory"; |
1878 | | |
1879 | | /* Add this directory to the directory list, if not already in. */ |
1880 | 0 | if (!_TIFFCheckDirNumberAndOffset(tif, *nextdirnum, *nextdiroff)) |
1881 | 0 | { |
1882 | 0 | TIFFErrorExtR(tif, module, |
1883 | 0 | "Starting directory %u at offset 0x%" PRIx64 " (%" PRIu64 |
1884 | 0 | ") might cause an IFD loop", |
1885 | 0 | *nextdirnum, *nextdiroff, *nextdiroff); |
1886 | 0 | *nextdiroff = 0; |
1887 | 0 | *nextdirnum = 0; |
1888 | 0 | return (0); |
1889 | 0 | } |
1890 | | |
1891 | 0 | if (isMapped(tif)) |
1892 | 0 | { |
1893 | 0 | uint64_t poff = *nextdiroff; |
1894 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
1895 | 0 | { |
1896 | 0 | tmsize_t poffa, poffb, poffc, poffd; |
1897 | 0 | uint16_t dircount; |
1898 | 0 | uint32_t nextdir32; |
1899 | 0 | if (poff > (uint64_t)TIFF_TMSIZE_T_MAX - sizeof(uint16_t) || |
1900 | 0 | poff > (uint64_t)tif->tif_size - sizeof(uint16_t)) |
1901 | 0 | { |
1902 | 0 | TIFFErrorExtR(tif, module, |
1903 | 0 | "%s:%d: %s: Error fetching directory count", |
1904 | 0 | __FILE__, __LINE__, tif->tif_name); |
1905 | 0 | *nextdiroff = 0; |
1906 | 0 | return (0); |
1907 | 0 | } |
1908 | 0 | poffa = (tmsize_t)poff; |
1909 | 0 | poffb = poffa + (tmsize_t)sizeof(uint16_t); |
1910 | 0 | _TIFFmemcpy(&dircount, tif->tif_base + poffa, sizeof(uint16_t)); |
1911 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1912 | 0 | TIFFSwabShort(&dircount); |
1913 | 0 | if (poffb > |
1914 | 0 | TIFF_TMSIZE_T_MAX - dircount * 12 - (tmsize_t)sizeof(uint32_t)) |
1915 | 0 | { |
1916 | 0 | TIFFErrorExtR(tif, module, "Error fetching directory link"); |
1917 | 0 | return (0); |
1918 | 0 | } |
1919 | 0 | poffc = poffb + dircount * 12; |
1920 | 0 | poffd = poffc + (tmsize_t)sizeof(uint32_t); |
1921 | 0 | if (poffd > tif->tif_size) |
1922 | 0 | { |
1923 | 0 | TIFFErrorExtR(tif, module, "Error fetching directory link"); |
1924 | 0 | return (0); |
1925 | 0 | } |
1926 | 0 | if (off != NULL) |
1927 | 0 | *off = (uint64_t)poffc; |
1928 | 0 | _TIFFmemcpy(&nextdir32, tif->tif_base + poffc, sizeof(uint32_t)); |
1929 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1930 | 0 | TIFFSwabLong(&nextdir32); |
1931 | 0 | *nextdiroff = nextdir32; |
1932 | 0 | } |
1933 | 0 | else |
1934 | 0 | { |
1935 | 0 | tmsize_t poffa, poffb, poffc, poffd; |
1936 | 0 | uint64_t dircount64; |
1937 | 0 | if (poff > (uint64_t)TIFF_TMSIZE_T_MAX - sizeof(uint64_t)) |
1938 | 0 | { |
1939 | 0 | TIFFErrorExtR(tif, module, |
1940 | 0 | "%s:%d: %s: Error fetching directory count", |
1941 | 0 | __FILE__, __LINE__, tif->tif_name); |
1942 | 0 | return (0); |
1943 | 0 | } |
1944 | 0 | poffa = (tmsize_t)poff; |
1945 | 0 | poffb = poffa + (tmsize_t)sizeof(uint64_t); |
1946 | 0 | if (poffb > tif->tif_size) |
1947 | 0 | { |
1948 | 0 | TIFFErrorExtR(tif, module, |
1949 | 0 | "%s:%d: %s: Error fetching directory count", |
1950 | 0 | __FILE__, __LINE__, tif->tif_name); |
1951 | 0 | return (0); |
1952 | 0 | } |
1953 | 0 | _TIFFmemcpy(&dircount64, tif->tif_base + poffa, sizeof(uint64_t)); |
1954 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1955 | 0 | TIFFSwabLong8(&dircount64); |
1956 | 0 | if (dircount64 > 0xFFFF) |
1957 | 0 | { |
1958 | 0 | TIFFErrorExtR(tif, module, |
1959 | 0 | "Sanity check on directory count failed"); |
1960 | 0 | return (0); |
1961 | 0 | } |
1962 | 0 | if (poffb > TIFF_TMSIZE_T_MAX - (tmsize_t)(dircount64 * 20) - |
1963 | 0 | (tmsize_t)sizeof(uint64_t)) |
1964 | 0 | { |
1965 | 0 | TIFFErrorExtR(tif, module, "Error fetching directory link"); |
1966 | 0 | return (0); |
1967 | 0 | } |
1968 | 0 | poffc = poffb + (tmsize_t)(dircount64 * 20); |
1969 | 0 | poffd = poffc + (tmsize_t)sizeof(uint64_t); |
1970 | 0 | if (poffd > tif->tif_size) |
1971 | 0 | { |
1972 | 0 | TIFFErrorExtR(tif, module, "Error fetching directory link"); |
1973 | 0 | return (0); |
1974 | 0 | } |
1975 | 0 | if (off != NULL) |
1976 | 0 | *off = (uint64_t)poffc; |
1977 | 0 | _TIFFmemcpy(nextdiroff, tif->tif_base + poffc, sizeof(uint64_t)); |
1978 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1979 | 0 | TIFFSwabLong8(nextdiroff); |
1980 | 0 | } |
1981 | 0 | } |
1982 | 0 | else |
1983 | 0 | { |
1984 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
1985 | 0 | { |
1986 | 0 | uint16_t dircount; |
1987 | 0 | uint32_t nextdir32; |
1988 | 0 | if (!SeekOK(tif, *nextdiroff) || |
1989 | 0 | !ReadOK(tif, &dircount, sizeof(uint16_t))) |
1990 | 0 | { |
1991 | 0 | TIFFErrorExtR(tif, module, |
1992 | 0 | "%s:%d: %s: Error fetching directory count", |
1993 | 0 | __FILE__, __LINE__, tif->tif_name); |
1994 | 0 | return (0); |
1995 | 0 | } |
1996 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1997 | 0 | TIFFSwabShort(&dircount); |
1998 | 0 | if (off != NULL) |
1999 | 0 | *off = TIFFSeekFile(tif, dircount * 12U, SEEK_CUR); |
2000 | 0 | else |
2001 | 0 | (void)TIFFSeekFile(tif, dircount * 12U, SEEK_CUR); |
2002 | 0 | if (!ReadOK(tif, &nextdir32, sizeof(uint32_t))) |
2003 | 0 | { |
2004 | 0 | TIFFErrorExtR(tif, module, "%s: Error fetching directory link", |
2005 | 0 | tif->tif_name); |
2006 | 0 | return (0); |
2007 | 0 | } |
2008 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2009 | 0 | TIFFSwabLong(&nextdir32); |
2010 | 0 | *nextdiroff = nextdir32; |
2011 | 0 | } |
2012 | 0 | else |
2013 | 0 | { |
2014 | 0 | uint64_t dircount64; |
2015 | 0 | if (!SeekOK(tif, *nextdiroff) || |
2016 | 0 | !ReadOK(tif, &dircount64, sizeof(uint64_t))) |
2017 | 0 | { |
2018 | 0 | TIFFErrorExtR(tif, module, |
2019 | 0 | "%s:%d: %s: Error fetching directory count", |
2020 | 0 | __FILE__, __LINE__, tif->tif_name); |
2021 | 0 | return (0); |
2022 | 0 | } |
2023 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2024 | 0 | TIFFSwabLong8(&dircount64); |
2025 | 0 | if (dircount64 > 0xFFFF) |
2026 | 0 | { |
2027 | 0 | TIFFErrorExtR(tif, module, |
2028 | 0 | "%s:%d: %s: Error fetching directory count", |
2029 | 0 | __FILE__, __LINE__, tif->tif_name); |
2030 | 0 | return (0); |
2031 | 0 | } |
2032 | 0 | if (off != NULL) |
2033 | 0 | *off = TIFFSeekFile(tif, dircount64 * 20, SEEK_CUR); |
2034 | 0 | else |
2035 | 0 | (void)TIFFSeekFile(tif, dircount64 * 20, SEEK_CUR); |
2036 | 0 | if (!ReadOK(tif, nextdiroff, sizeof(uint64_t))) |
2037 | 0 | { |
2038 | 0 | TIFFErrorExtR(tif, module, "%s: Error fetching directory link", |
2039 | 0 | tif->tif_name); |
2040 | 0 | return (0); |
2041 | 0 | } |
2042 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2043 | 0 | TIFFSwabLong8(nextdiroff); |
2044 | 0 | } |
2045 | 0 | } |
2046 | 0 | if (*nextdiroff != 0) |
2047 | 0 | { |
2048 | 0 | (*nextdirnum)++; |
2049 | | /* Check next directory for IFD looping and if so, set it as last |
2050 | | * directory. */ |
2051 | 0 | if (!_TIFFCheckDirNumberAndOffset(tif, *nextdirnum, *nextdiroff)) |
2052 | 0 | { |
2053 | 0 | TIFFWarningExtR( |
2054 | 0 | tif, module, |
2055 | 0 | "the next directory %u at offset 0x%" PRIx64 " (%" PRIu64 |
2056 | 0 | ") might be an IFD loop. Treating directory %d as " |
2057 | 0 | "last directory", |
2058 | 0 | *nextdirnum, *nextdiroff, *nextdiroff, (int)(*nextdirnum) - 1); |
2059 | 0 | *nextdiroff = 0; |
2060 | 0 | (*nextdirnum)--; |
2061 | 0 | } |
2062 | 0 | } |
2063 | 0 | return (1); |
2064 | 0 | } |
2065 | | |
2066 | | /* |
2067 | | * Count the number of directories in a file. |
2068 | | */ |
2069 | | tdir_t TIFFNumberOfDirectories(TIFF *tif) |
2070 | 0 | { |
2071 | 0 | uint64_t nextdiroff; |
2072 | 0 | tdir_t nextdirnum; |
2073 | 0 | tdir_t n; |
2074 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
2075 | 0 | nextdiroff = tif->tif_header.classic.tiff_diroff; |
2076 | 0 | else |
2077 | 0 | nextdiroff = tif->tif_header.big.tiff_diroff; |
2078 | 0 | nextdirnum = 0; |
2079 | 0 | n = 0; |
2080 | 0 | while (nextdiroff != 0 && |
2081 | 0 | TIFFAdvanceDirectory(tif, &nextdiroff, NULL, &nextdirnum)) |
2082 | 0 | { |
2083 | 0 | ++n; |
2084 | 0 | } |
2085 | | /* Update number of main-IFDs in file. */ |
2086 | 0 | tif->tif_curdircount = n; |
2087 | 0 | return (n); |
2088 | 0 | } |
2089 | | |
2090 | | /* |
2091 | | * Set the n-th directory as the current directory. |
2092 | | * NB: Directories are numbered starting at 0. |
2093 | | */ |
2094 | | int TIFFSetDirectory(TIFF *tif, tdir_t dirn) |
2095 | 0 | { |
2096 | 0 | uint64_t nextdiroff; |
2097 | 0 | tdir_t nextdirnum = 0; |
2098 | 0 | tdir_t n; |
2099 | |
|
2100 | 0 | if (tif->tif_setdirectory_force_absolute) |
2101 | 0 | { |
2102 | | /* tif_setdirectory_force_absolute=1 will force parsing the main IFD |
2103 | | * chain from the beginning, thus IFD directory list needs to be cleared |
2104 | | * from possible SubIFD offsets. |
2105 | | */ |
2106 | 0 | _TIFFCleanupIFDOffsetAndNumberMaps(tif); /* invalidate IFD loop lists */ |
2107 | 0 | } |
2108 | | |
2109 | | /* Even faster path, if offset is available within IFD loop hash list. */ |
2110 | 0 | if (!tif->tif_setdirectory_force_absolute && |
2111 | 0 | _TIFFGetOffsetFromDirNumber(tif, dirn, &nextdiroff)) |
2112 | 0 | { |
2113 | | /* Set parameters for following TIFFReadDirectory() below. */ |
2114 | 0 | tif->tif_nextdiroff = nextdiroff; |
2115 | 0 | tif->tif_curdir = dirn; |
2116 | | /* Reset to relative stepping */ |
2117 | 0 | tif->tif_setdirectory_force_absolute = FALSE; |
2118 | 0 | } |
2119 | 0 | else |
2120 | 0 | { |
2121 | | |
2122 | | /* Fast path when we just advance relative to the current directory: |
2123 | | * start at the current dir offset and continue to seek from there. |
2124 | | * Check special cases when relative is not allowed: |
2125 | | * - jump back from SubIFD or custom directory |
2126 | | * - right after TIFFWriteDirectory() jump back to that directory |
2127 | | * using TIFFSetDirectory() */ |
2128 | 0 | const int relative = (dirn >= tif->tif_curdir) && |
2129 | 0 | (tif->tif_diroff != 0) && |
2130 | 0 | !tif->tif_setdirectory_force_absolute; |
2131 | |
|
2132 | 0 | if (relative) |
2133 | 0 | { |
2134 | 0 | nextdiroff = tif->tif_diroff; |
2135 | 0 | dirn -= tif->tif_curdir; |
2136 | 0 | nextdirnum = tif->tif_curdir; |
2137 | 0 | } |
2138 | 0 | else if (!(tif->tif_flags & TIFF_BIGTIFF)) |
2139 | 0 | nextdiroff = tif->tif_header.classic.tiff_diroff; |
2140 | 0 | else |
2141 | 0 | nextdiroff = tif->tif_header.big.tiff_diroff; |
2142 | | |
2143 | | /* Reset to relative stepping */ |
2144 | 0 | tif->tif_setdirectory_force_absolute = FALSE; |
2145 | |
|
2146 | 0 | for (n = dirn; n > 0 && nextdiroff != 0; n--) |
2147 | 0 | if (!TIFFAdvanceDirectory(tif, &nextdiroff, NULL, &nextdirnum)) |
2148 | 0 | return (0); |
2149 | | /* If the n-th directory could not be reached (does not exist), |
2150 | | * return here without touching anything further. */ |
2151 | 0 | if (nextdiroff == 0 || n > 0) |
2152 | 0 | return (0); |
2153 | | |
2154 | 0 | tif->tif_nextdiroff = nextdiroff; |
2155 | | |
2156 | | /* Set curdir to the actual directory index. */ |
2157 | 0 | if (relative) |
2158 | 0 | tif->tif_curdir += dirn - n; |
2159 | 0 | else |
2160 | 0 | tif->tif_curdir = dirn - n; |
2161 | 0 | } |
2162 | | |
2163 | | /* The -1 decrement is because TIFFReadDirectory will increment |
2164 | | * tif_curdir after successfully reading the directory. */ |
2165 | 0 | if (tif->tif_curdir == 0) |
2166 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2167 | 0 | else |
2168 | 0 | tif->tif_curdir--; |
2169 | |
|
2170 | 0 | tdir_t curdir = tif->tif_curdir; |
2171 | |
|
2172 | 0 | int retval = TIFFReadDirectory(tif); |
2173 | |
|
2174 | 0 | if (!retval && tif->tif_curdir == curdir) |
2175 | 0 | { |
2176 | | /* If tif_curdir has not be incremented, TIFFFetchDirectory() in |
2177 | | * TIFFReadDirectory() has failed and tif_curdir shall be set |
2178 | | * specifically. */ |
2179 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2180 | 0 | } |
2181 | 0 | return (retval); |
2182 | 0 | } |
2183 | | |
2184 | | /* |
2185 | | * Set the current directory to be the directory |
2186 | | * located at the specified file offset. This interface |
2187 | | * is used mainly to access directories linked with |
2188 | | * the SubIFD tag (e.g. thumbnail images). |
2189 | | */ |
2190 | | int TIFFSetSubDirectory(TIFF *tif, uint64_t diroff) |
2191 | 0 | { |
2192 | | /* Match nextdiroff and curdir for consistent IFD-loop checking. |
2193 | | * Only with TIFFSetSubDirectory() the IFD list can be corrupted with |
2194 | | * invalid offsets within the main IFD tree. In the case of several subIFDs |
2195 | | * of a main image, there are two possibilities that are not even mutually |
2196 | | * exclusive. a.) The subIFD tag contains an array with all offsets of the |
2197 | | * subIFDs. b.) The SubIFDs are concatenated with their NextIFD parameters. |
2198 | | * (refer to |
2199 | | * https://www.awaresystems.be/imaging/tiff/specification/TIFFPM6.pdf.) |
2200 | | */ |
2201 | 0 | int retval; |
2202 | 0 | uint32_t curdir = 0; |
2203 | 0 | int8_t probablySubIFD = 0; |
2204 | 0 | if (diroff == 0) |
2205 | 0 | { |
2206 | | /* Special case to set tif_diroff=0, which is done in |
2207 | | * TIFFReadDirectory() below to indicate that the currently read IFD is |
2208 | | * treated as a new, fresh IFD. */ |
2209 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2210 | 0 | tif->tif_dir.td_iswrittentofile = FALSE; |
2211 | 0 | } |
2212 | 0 | else |
2213 | 0 | { |
2214 | 0 | if (!_TIFFGetDirNumberFromOffset(tif, diroff, &curdir)) |
2215 | 0 | { |
2216 | | /* Non-existing offsets might point to a SubIFD or invalid IFD.*/ |
2217 | 0 | probablySubIFD = 1; |
2218 | 0 | } |
2219 | | /* -1 because TIFFReadDirectory() will increment tif_curdir. */ |
2220 | 0 | if (curdir >= 1) |
2221 | 0 | tif->tif_curdir = curdir - 1; |
2222 | 0 | else |
2223 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2224 | 0 | } |
2225 | 0 | curdir = tif->tif_curdir; |
2226 | |
|
2227 | 0 | tif->tif_nextdiroff = diroff; |
2228 | 0 | retval = TIFFReadDirectory(tif); |
2229 | | |
2230 | | /* tif_curdir is incremented in TIFFReadDirectory(), but if it has not been |
2231 | | * incremented, TIFFFetchDirectory() has failed there and tif_curdir shall |
2232 | | * be set specifically. */ |
2233 | 0 | if (!retval && diroff != 0 && tif->tif_curdir == curdir) |
2234 | 0 | { |
2235 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2236 | 0 | } |
2237 | |
|
2238 | 0 | if (probablySubIFD) |
2239 | 0 | { |
2240 | 0 | if (retval) |
2241 | 0 | { |
2242 | | /* Reset IFD list to start new one for SubIFD chain and also start |
2243 | | * SubIFD chain with tif_curdir=0 for IFD loop checking. */ |
2244 | | /* invalidate IFD loop lists */ |
2245 | 0 | _TIFFCleanupIFDOffsetAndNumberMaps(tif); |
2246 | 0 | tif->tif_curdir = 0; /* first directory of new chain */ |
2247 | | /* add this offset to new IFD list */ |
2248 | 0 | retval = _TIFFCheckDirNumberAndOffset(tif, tif->tif_curdir, diroff); |
2249 | 0 | } |
2250 | | /* To be able to return from SubIFD or custom-IFD to main-IFD */ |
2251 | 0 | tif->tif_setdirectory_force_absolute = TRUE; |
2252 | 0 | } |
2253 | |
|
2254 | 0 | return (retval); |
2255 | 0 | } |
2256 | | |
2257 | | /* |
2258 | | * Return file offset of the current directory. |
2259 | | */ |
2260 | 0 | uint64_t TIFFCurrentDirOffset(TIFF *tif) { return (tif->tif_diroff); } |
2261 | | |
2262 | | /* |
2263 | | * Return an indication of whether or not we are |
2264 | | * at the last directory in the file. |
2265 | | */ |
2266 | 0 | int TIFFLastDirectory(TIFF *tif) { return (tif->tif_nextdiroff == 0); } |
2267 | | |
2268 | | /* |
2269 | | * Unlink the specified directory from the directory chain. |
2270 | | * Note: First directory starts with number dirn=1. |
2271 | | * This is different to TIFFSetDirectory() where the first directory starts with |
2272 | | * zero. |
2273 | | */ |
2274 | | int TIFFUnlinkDirectory(TIFF *tif, tdir_t dirn) |
2275 | 0 | { |
2276 | 0 | static const char module[] = "TIFFUnlinkDirectory"; |
2277 | 0 | uint64_t nextdir; |
2278 | 0 | tdir_t nextdirnum; |
2279 | 0 | uint64_t off; |
2280 | 0 | tdir_t n; |
2281 | |
|
2282 | 0 | if (tif->tif_mode == O_RDONLY) |
2283 | 0 | { |
2284 | 0 | TIFFErrorExtR(tif, module, |
2285 | 0 | "Can not unlink directory in read-only file"); |
2286 | 0 | return (0); |
2287 | 0 | } |
2288 | 0 | if (dirn == 0) |
2289 | 0 | { |
2290 | 0 | TIFFErrorExtR(tif, module, |
2291 | 0 | "For TIFFUnlinkDirectory() first directory starts with " |
2292 | 0 | "number 1 and not 0"); |
2293 | 0 | return (0); |
2294 | 0 | } |
2295 | | /* |
2296 | | * Go to the directory before the one we want |
2297 | | * to unlink and nab the offset of the link |
2298 | | * field we'll need to patch. |
2299 | | */ |
2300 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
2301 | 0 | { |
2302 | 0 | nextdir = tif->tif_header.classic.tiff_diroff; |
2303 | 0 | off = 4; |
2304 | 0 | } |
2305 | 0 | else |
2306 | 0 | { |
2307 | 0 | nextdir = tif->tif_header.big.tiff_diroff; |
2308 | 0 | off = 8; |
2309 | 0 | } |
2310 | 0 | nextdirnum = 0; /* First directory is dirn=0 */ |
2311 | |
|
2312 | 0 | for (n = dirn - 1; n > 0; n--) |
2313 | 0 | { |
2314 | 0 | if (nextdir == 0) |
2315 | 0 | { |
2316 | 0 | TIFFErrorExtR(tif, module, "Directory %u does not exist", dirn); |
2317 | 0 | return (0); |
2318 | 0 | } |
2319 | 0 | if (!TIFFAdvanceDirectory(tif, &nextdir, &off, &nextdirnum)) |
2320 | 0 | return (0); |
2321 | 0 | } |
2322 | | /* |
2323 | | * Advance to the directory to be unlinked and fetch |
2324 | | * the offset of the directory that follows. |
2325 | | */ |
2326 | 0 | if (!TIFFAdvanceDirectory(tif, &nextdir, NULL, &nextdirnum)) |
2327 | 0 | return (0); |
2328 | | /* |
2329 | | * Go back and patch the link field of the preceding |
2330 | | * directory to point to the offset of the directory |
2331 | | * that follows. |
2332 | | */ |
2333 | 0 | (void)TIFFSeekFile(tif, off, SEEK_SET); |
2334 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
2335 | 0 | { |
2336 | 0 | uint32_t nextdir32; |
2337 | 0 | nextdir32 = (uint32_t)nextdir; |
2338 | 0 | assert((uint64_t)nextdir32 == nextdir); |
2339 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2340 | 0 | TIFFSwabLong(&nextdir32); |
2341 | 0 | if (!WriteOK(tif, &nextdir32, sizeof(uint32_t))) |
2342 | 0 | { |
2343 | 0 | TIFFErrorExtR(tif, module, "Error writing directory link"); |
2344 | 0 | return (0); |
2345 | 0 | } |
2346 | 0 | } |
2347 | 0 | else |
2348 | 0 | { |
2349 | | /* Need local swap because nextdir has to be used unswapped below. */ |
2350 | 0 | uint64_t nextdir64 = nextdir; |
2351 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2352 | 0 | TIFFSwabLong8(&nextdir64); |
2353 | 0 | if (!WriteOK(tif, &nextdir64, sizeof(uint64_t))) |
2354 | 0 | { |
2355 | 0 | TIFFErrorExtR(tif, module, "Error writing directory link"); |
2356 | 0 | return (0); |
2357 | 0 | } |
2358 | 0 | } |
2359 | | |
2360 | | /* For dirn=1 (first directory) also update the libtiff internal |
2361 | | * base offset variables. */ |
2362 | 0 | if (dirn == 1) |
2363 | 0 | { |
2364 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
2365 | 0 | tif->tif_header.classic.tiff_diroff = (uint32_t)nextdir; |
2366 | 0 | else |
2367 | 0 | tif->tif_header.big.tiff_diroff = nextdir; |
2368 | 0 | } |
2369 | | |
2370 | | /* |
2371 | | * Leave directory state setup safely. We don't have |
2372 | | * facilities for doing inserting and removing directories, |
2373 | | * so it's safest to just invalidate everything. This |
2374 | | * means that the caller can only append to the directory |
2375 | | * chain. |
2376 | | */ |
2377 | 0 | if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) |
2378 | 0 | { |
2379 | 0 | _TIFFfreeExt(tif, tif->tif_rawdata); |
2380 | 0 | tif->tif_rawdata = NULL; |
2381 | 0 | tif->tif_rawcc = 0; |
2382 | 0 | tif->tif_rawcp = NULL; |
2383 | 0 | tif->tif_rawdataoff = 0; |
2384 | 0 | tif->tif_rawdataloaded = 0; |
2385 | 0 | } |
2386 | 0 | tif->tif_flags &= ~(TIFF_BEENWRITING | TIFF_BUFFERSETUP | TIFF_POSTENCODE | |
2387 | 0 | TIFF_BUF4WRITE); |
2388 | 0 | TIFFFreeDirectory(tif); |
2389 | 0 | TIFFDefaultDirectory(tif); |
2390 | 0 | tif->tif_diroff = 0; /* force link on next write */ |
2391 | 0 | tif->tif_nextdiroff = 0; /* next write must be at end */ |
2392 | 0 | tif->tif_lastdiroff = 0; /* will be updated on next link */ |
2393 | 0 | tif->tif_curoff = 0; |
2394 | 0 | tif->tif_curdir = TIFF_NON_EXISTENT_DIR_NUMBER; |
2395 | 0 | if (tif->tif_curdircount > 0) |
2396 | 0 | tif->tif_curdircount--; |
2397 | 0 | else |
2398 | 0 | tif->tif_curdircount = TIFF_NON_EXISTENT_DIR_NUMBER; |
2399 | 0 | _TIFFCleanupIFDOffsetAndNumberMaps(tif); /* invalidate IFD loop lists */ |
2400 | 0 | return (1); |
2401 | 0 | } |