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Diffstat (limited to 'libraries/eina/src/lib/eina_xattr.c')
-rw-r--r--libraries/eina/src/lib/eina_xattr.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/libraries/eina/src/lib/eina_xattr.c b/libraries/eina/src/lib/eina_xattr.c
deleted file mode 100644
index d4ed139..0000000
--- a/libraries/eina/src/lib/eina_xattr.c
+++ /dev/null
@@ -1,483 +0,0 @@
1/* EINA - EFL data type library
2 * Copyright (C) 2011 Cedric Bail
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library;
16 * if not, see <http://www.gnu.org/licenses/>.
17 */
18
19#ifdef HAVE_CONFIG_H
20# include "config.h"
21#endif
22
23#include <stdlib.h>
24#include <sys/types.h>
25#include <string.h>
26#include <math.h>
27
28#ifdef HAVE_XATTR
29# include <sys/xattr.h>
30#endif
31
32#include "eina_config.h"
33#include "eina_private.h"
34
35#include "eina_safety_checks.h"
36#include "eina_xattr.h"
37#include "eina_convert.h"
38#include "eina_stringshare.h"
39
40/*============================================================================*
41 * Local *
42 *============================================================================*/
43
44/**
45 * @cond LOCAL
46 */
47
48typedef struct _Eina_Xattr_Iterator Eina_Xattr_Iterator;
49
50struct _Eina_Xattr_Iterator
51{
52 Eina_Iterator iterator;
53
54 const char *file;
55 Eina_Xattr *attr;
56
57 ssize_t length;
58 ssize_t offset;
59
60 int fd;
61
62 char xattr[1];
63};
64
65#ifdef HAVE_XATTR
66static Eina_Bool
67_eina_xattr_value_ls_fd_iterator_next(Eina_Xattr_Iterator *it, void **data)
68{
69 char *tmp;
70
71 if (it->offset >= it->length)
72 return EINA_FALSE;
73
74 *data = it->attr;
75 it->attr->name = it->xattr + it->offset;
76
77 it->attr->length = fgetxattr(it->fd, it->attr->name, NULL, 0);
78 if (it->attr->length)
79 {
80 tmp = realloc((void*) it->attr->value, it->attr->length);
81 if (!tmp)
82 {
83 free((void*) it->attr->value);
84 it->attr->value = NULL;
85 it->attr->length = 0;
86 }
87 else
88 {
89 it->attr->length = fgetxattr(it->fd, it->attr->name,
90 (void *) it->attr->value,
91 it->attr->length);
92 }
93 }
94
95 return EINA_TRUE;
96}
97
98static Eina_Bool
99_eina_xattr_value_ls_iterator_next(Eina_Xattr_Iterator *it, void **data)
100{
101 char *tmp;
102
103 if (it->offset >= it->length)
104 return EINA_FALSE;
105
106 *data = it->attr;
107 it->attr->name = it->xattr + it->offset;
108
109 it->attr->length = getxattr(it->file, it->attr->name, NULL, 0);
110 if (it->attr->length)
111 {
112 tmp = realloc((void*) it->attr->value, it->attr->length);
113 if (!tmp)
114 {
115 free((void*) it->attr->value);
116 it->attr->value = NULL;
117 it->attr->length = 0;
118 }
119 else
120 {
121 it->attr->length = getxattr(it->file, it->attr->name,
122 (void*) it->attr->value,
123 it->attr->length);
124 }
125 }
126
127 return EINA_TRUE;
128}
129
130static Eina_Bool
131_eina_xattr_ls_iterator_next(Eina_Xattr_Iterator *it, void **data)
132{
133 if (it->offset >= it->length)
134 return EINA_FALSE;
135
136 *data = it->xattr + it->offset;
137 it->offset += strlen(it->xattr + it->offset) + 1;
138
139 return EINA_TRUE;
140}
141
142static void *
143_eina_xattr_ls_iterator_container(Eina_Xattr_Iterator *it __UNUSED__)
144{
145 return NULL;
146}
147
148static void
149_eina_xattr_ls_iterator_free(Eina_Xattr_Iterator *it)
150{
151 EINA_MAGIC_SET(&it->iterator, 0);
152 if (it->attr) free((void *) it->attr->value);
153 eina_stringshare_del(it->file);
154 free(it->attr);
155 free(it);
156}
157#endif
158
159/**
160 * @endcond
161 */
162
163
164/*============================================================================*
165 * Global *
166 *============================================================================*/
167
168
169/*============================================================================*
170 * API *
171 *============================================================================*/
172
173EAPI Eina_Iterator *
174eina_xattr_value_fd_ls(int fd)
175{
176#ifdef HAVE_XATTR
177 Eina_Xattr_Iterator *it;
178 ssize_t length;
179
180 if (fd < 0) return NULL;
181
182 length = flistxattr(fd, NULL, 0);
183 if (length <= 0) return NULL;
184
185 it = calloc(1, sizeof (Eina_Xattr_Iterator) + length - 1);
186 if (!it) return NULL;
187
188 it->attr = calloc(1, sizeof (Eina_Xattr));
189 if (!it->attr)
190 {
191 free(it);
192 return NULL;
193 }
194
195 EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
196
197 it->fd = fd;
198 it->length = flistxattr(fd, it->xattr, length);
199 if (it->length != length)
200 {
201 free(it);
202 return NULL;
203 }
204
205 it->iterator.version = EINA_ITERATOR_VERSION;
206 it->iterator.next = FUNC_ITERATOR_NEXT(_eina_xattr_value_ls_fd_iterator_next);
207 it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_xattr_ls_iterator_container);
208 it->iterator.free = FUNC_ITERATOR_FREE(_eina_xattr_ls_iterator_free);
209
210 return &it->iterator;
211#else
212 return NULL;
213 (void)fd;
214#endif
215}
216
217EAPI Eina_Iterator *
218eina_xattr_fd_ls(int fd)
219{
220#ifdef HAVE_XATTR
221 Eina_Xattr_Iterator *it;
222 ssize_t length;
223
224 if (fd < 0) return NULL;
225
226 length = flistxattr(fd, NULL, 0);
227 if (length <= 0) return NULL;
228
229 it = calloc(1, sizeof (Eina_Xattr_Iterator) + length - 1);
230 if (!it) return NULL;
231
232 EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
233
234 it->length = flistxattr(fd, it->xattr, length);
235 if (it->length != length)
236 {
237 free(it);
238 return NULL;
239 }
240
241 it->iterator.version = EINA_ITERATOR_VERSION;
242 it->iterator.next = FUNC_ITERATOR_NEXT(_eina_xattr_ls_iterator_next);
243 it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_xattr_ls_iterator_container);
244 it->iterator.free = FUNC_ITERATOR_FREE(_eina_xattr_ls_iterator_free);
245
246 return &it->iterator;
247#else
248 return NULL;
249 (void)fd;
250#endif
251}
252
253EAPI Eina_Iterator *
254eina_xattr_ls(const char *file)
255{
256#ifdef HAVE_XATTR
257 Eina_Xattr_Iterator *it;
258 ssize_t length;
259
260 EINA_SAFETY_ON_NULL_RETURN_VAL(file, NULL);
261
262 length = listxattr(file, NULL, 0);
263 if (length <= 0) return NULL;
264
265 it = calloc(1, sizeof (Eina_Xattr_Iterator) + length - 1);
266 if (!it) return NULL;
267
268 EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
269
270 it->length = listxattr(file, it->xattr, length);
271 if (it->length != length)
272 {
273 free(it);
274 return NULL;
275 }
276
277 it->iterator.version = EINA_ITERATOR_VERSION;
278 it->iterator.next = FUNC_ITERATOR_NEXT(_eina_xattr_ls_iterator_next);
279 it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_xattr_ls_iterator_container);
280 it->iterator.free = FUNC_ITERATOR_FREE(_eina_xattr_ls_iterator_free);
281
282 return &it->iterator;
283#else
284 return NULL;
285 (void)file;
286#endif
287}
288
289EAPI Eina_Iterator *
290eina_xattr_value_ls(const char *file)
291{
292#ifdef HAVE_XATTR
293 Eina_Xattr_Iterator *it;
294 ssize_t length;
295
296 EINA_SAFETY_ON_NULL_RETURN_VAL(file, NULL);
297
298 length = listxattr(file, NULL, 0);
299 if (length <= 0) return NULL;
300
301 it = calloc(1, sizeof (Eina_Xattr_Iterator) + length - 1);
302 if (!it) return NULL;
303
304 EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
305
306 it->length = listxattr(file, it->xattr, length);
307 if (it->length != length)
308 {
309 free(it);
310 return NULL;
311 }
312
313 it->file = eina_stringshare_add(file);
314
315 it->iterator.version = EINA_ITERATOR_VERSION;
316 it->iterator.next = FUNC_ITERATOR_NEXT(_eina_xattr_value_ls_iterator_next);
317 it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_xattr_ls_iterator_container);
318 it->iterator.free = FUNC_ITERATOR_FREE(_eina_xattr_ls_iterator_free);
319
320 return &it->iterator;
321#else
322 return NULL;
323 (void)file;
324#endif
325}
326
327EAPI void *
328eina_xattr_get(const char *file, const char *attribute, ssize_t *size)
329{
330#ifdef HAVE_XATTR
331 void *ret = NULL;
332 ssize_t tmp;
333
334 EINA_SAFETY_ON_NULL_RETURN_VAL(file, NULL);
335 EINA_SAFETY_ON_NULL_RETURN_VAL(attribute, NULL);
336 EINA_SAFETY_ON_TRUE_RETURN_VAL(!size, NULL);
337
338 *size = getxattr(file, attribute, NULL, 0);
339 /* Size should be less than 2MB (already huge in my opinion) */
340 if (!(*size > 0 && *size < 2 * 1024 * 1024))
341 goto on_error;
342
343 ret = malloc(*size);
344 if (!ret) return NULL;
345
346 tmp = getxattr(file, attribute, ret, *size);
347 if (tmp != *size)
348 goto on_error;
349
350 return ret;
351
352 on_error:
353 free(ret);
354 *size = 0;
355 return NULL;
356#else
357 EINA_SAFETY_ON_TRUE_RETURN_VAL(!size, NULL);
358 *size = 0;
359 return NULL;
360 (void)file;
361 (void)attribute;
362#endif
363}
364
365EAPI Eina_Bool
366eina_xattr_set(const char *file, const char *attribute, const void *data, ssize_t length, Eina_Xattr_Flags flags)
367{
368#ifdef HAVE_XATTR
369 int iflags;
370
371 EINA_SAFETY_ON_NULL_RETURN_VAL(file, EINA_FALSE);
372 EINA_SAFETY_ON_NULL_RETURN_VAL(attribute, EINA_FALSE);
373 EINA_SAFETY_ON_NULL_RETURN_VAL(data, EINA_FALSE);
374 EINA_SAFETY_ON_TRUE_RETURN_VAL(!(length > 0 && length < 2 * 1024 * 1024), EINA_FALSE);
375
376 switch (flags)
377 {
378 case EINA_XATTR_INSERT: iflags = 0; break;
379 case EINA_XATTR_REPLACE: iflags = XATTR_REPLACE; break;
380 case EINA_XATTR_CREATED: iflags = XATTR_CREATE; break;
381 default:
382 return EINA_FALSE;
383 }
384
385 if (setxattr(file, attribute, data, length, iflags))
386 return EINA_FALSE;
387 return EINA_TRUE;
388#else
389 return EINA_FALSE;
390 (void)file;
391 (void)attribute;
392 (void)data;
393 (void)length;
394 (void)flags;
395#endif
396}
397
398EAPI Eina_Bool
399eina_xattr_string_set(const char *file, const char *attribute, const char *data, Eina_Xattr_Flags flags)
400{
401 EINA_SAFETY_ON_NULL_RETURN_VAL(data, EINA_FALSE);
402
403 return eina_xattr_set(file, attribute, data, strlen(data) + 1, flags);
404}
405
406EAPI char *
407eina_xattr_string_get(const char *file, const char *attribute)
408{
409 char *tmp;
410 ssize_t size;
411
412 tmp = eina_xattr_get(file, attribute, &size);
413 if (!tmp) return NULL;
414
415 if (tmp[size - 1] != '\0')
416 {
417 free(tmp);
418 return NULL;
419 }
420
421 return tmp;
422}
423
424EAPI Eina_Bool
425eina_xattr_double_set(const char *file, const char *attribute, double value, Eina_Xattr_Flags flags)
426{
427 char buffer[128];
428
429 eina_convert_dtoa(value, buffer);
430 return eina_xattr_string_set(file, attribute, buffer, flags);
431}
432
433EAPI Eina_Bool
434eina_xattr_double_get(const char *file, const char *attribute, double *value)
435{
436 char *tmp;
437 long long int m = 0;
438 long int e = 0;
439
440 EINA_SAFETY_ON_NULL_RETURN_VAL(value, EINA_FALSE);
441
442 tmp = eina_xattr_string_get(file, attribute);
443 if (!tmp) return EINA_FALSE;
444
445 if (!eina_convert_atod(tmp, strlen(tmp), &m, &e))
446 {
447 free(tmp);
448 return EINA_FALSE;
449 }
450
451 *value = ldexp((double)m, e);
452 free(tmp);
453
454 return EINA_TRUE;
455}
456
457EAPI Eina_Bool
458eina_xattr_int_set(const char *file, const char *attribute, int value, Eina_Xattr_Flags flags)
459{
460 char buffer[10];
461
462 eina_convert_itoa(value, buffer);
463 return eina_xattr_string_set(file, attribute, buffer, flags);
464}
465
466EAPI Eina_Bool
467eina_xattr_int_get(const char *file, const char *attribute, int *value)
468{
469 char *tmp;
470 char *eos;
471 Eina_Bool result;
472
473 EINA_SAFETY_ON_NULL_RETURN_VAL(value, EINA_FALSE);
474
475 tmp = eina_xattr_string_get(file, attribute);
476 if (!tmp) return EINA_FALSE;
477
478 *value = (int) strtol(tmp, &eos, 10);
479 result = (*eos == '\0');
480 free(tmp);
481
482 return result;
483}
generated by cgit v1.1 at 2024-08-30 17:54:33 +0000