226a5691 |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * |
3 | * --------------------------------------------------------------------------------------- |
4 | * The following license statement only applies to this file (vfs_implementation.c). |
5 | * --------------------------------------------------------------------------------------- |
6 | * |
7 | * Permission is hereby granted, free of charge, |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), |
9 | * to deal in the Software without restriction, including without limitation the rights to |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
21 | */ |
22 | |
23 | #include <stdio.h> |
24 | #include <stdlib.h> |
25 | #include <string.h> |
26 | #include <errno.h> |
27 | #include <sys/types.h> |
28 | |
29 | #include <string/stdstring.h> |
30 | |
31 | #ifdef HAVE_CONFIG_H |
32 | #include "config.h" |
33 | #endif |
34 | |
35 | #if defined(_WIN32) |
36 | # ifdef _MSC_VER |
37 | # define setmode _setmode |
38 | # endif |
39 | #include <sys/stat.h> |
40 | # ifdef _XBOX |
41 | # include <xtl.h> |
42 | # define INVALID_FILE_ATTRIBUTES -1 |
43 | # else |
44 | |
45 | # include <fcntl.h> |
46 | # include <direct.h> |
47 | # include <windows.h> |
48 | # endif |
49 | # include <io.h> |
50 | #else |
51 | # if defined(PSP) |
52 | # include <pspiofilemgr.h> |
53 | # endif |
54 | # include <sys/types.h> |
55 | # include <sys/stat.h> |
56 | # if !defined(VITA) |
57 | # include <dirent.h> |
58 | # endif |
59 | # include <unistd.h> |
60 | # if defined(ORBIS) |
61 | # include <sys/fcntl.h> |
62 | # include <sys/dirent.h> |
63 | # include <orbisFile.h> |
64 | # endif |
65 | #endif |
66 | |
67 | #if defined (__CELLOS_LV2__) && !defined(__PSL1GHT__) |
68 | #include <cell/cell_fs.h> |
69 | #define O_RDONLY CELL_FS_O_RDONLY |
70 | #define O_WRONLY CELL_FS_O_WRONLY |
71 | #define O_CREAT CELL_FS_O_CREAT |
72 | #define O_TRUNC CELL_FS_O_TRUNC |
73 | #define O_RDWR CELL_FS_O_RDWR |
74 | #else |
75 | #include <fcntl.h> |
76 | #endif |
77 | |
78 | /* TODO: Some things are duplicated but I'm really afraid of breaking other platforms by touching this */ |
79 | #if defined(VITA) |
80 | # include <psp2/io/fcntl.h> |
81 | # include <psp2/io/dirent.h> |
82 | # include <psp2/io/stat.h> |
83 | #elif defined(ORBIS) |
84 | # include <orbisFile.h> |
85 | # include <ps4link.h> |
86 | # include <sys/dirent.h> |
87 | # include <sys/fcntl.h> |
88 | #elif !defined(_WIN32) |
89 | # if defined(PSP) |
90 | # include <pspiofilemgr.h> |
91 | # endif |
92 | # include <sys/types.h> |
93 | # include <sys/stat.h> |
94 | # include <dirent.h> |
95 | # include <unistd.h> |
96 | #endif |
97 | |
98 | #if (defined(__CELLOS_LV2__) && !defined(__PSL1GHT__)) || defined(__QNX__) || defined(PSP) |
99 | #include <unistd.h> /* stat() is defined here */ |
100 | #endif |
101 | |
102 | #ifdef __APPLE__ |
103 | #include <CoreFoundation/CoreFoundation.h> |
104 | #endif |
105 | #ifdef __HAIKU__ |
106 | #include <kernel/image.h> |
107 | #endif |
108 | #ifndef __MACH__ |
109 | #include <compat/strl.h> |
110 | #include <compat/posix_string.h> |
111 | #endif |
112 | #include <compat/strcasestr.h> |
113 | #include <retro_miscellaneous.h> |
114 | #include <encodings/utf.h> |
115 | |
116 | #if defined(_WIN32) |
117 | #ifndef _XBOX |
118 | #if defined(_MSC_VER) && _MSC_VER <= 1200 |
119 | #define INVALID_FILE_ATTRIBUTES ((DWORD)-1) |
120 | #endif |
121 | #endif |
122 | #elif defined(VITA) |
123 | #define SCE_ERROR_ERRNO_EEXIST 0x80010011 |
124 | #include <psp2/io/fcntl.h> |
125 | #include <psp2/io/dirent.h> |
126 | #include <psp2/io/stat.h> |
127 | #else |
128 | #include <sys/types.h> |
129 | #include <sys/stat.h> |
130 | #include <unistd.h> |
131 | #endif |
132 | |
133 | #if defined(ORBIS) |
134 | #include <orbisFile.h> |
135 | #include <sys/fcntl.h> |
136 | #include <sys/dirent.h> |
137 | #endif |
138 | #if defined(PSP) |
139 | #include <pspkernel.h> |
140 | #endif |
141 | |
142 | #if defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
143 | #include <cell/cell_fs.h> |
144 | #endif |
145 | |
146 | #if defined(VITA) |
147 | #define FIO_S_ISDIR SCE_S_ISDIR |
148 | #endif |
149 | |
150 | #if (defined(__CELLOS_LV2__) && !defined(__PSL1GHT__)) || defined(__QNX__) || defined(PSP) |
151 | #include <unistd.h> /* stat() is defined here */ |
152 | #endif |
153 | |
154 | /* Assume W-functions do not work below Win2K and Xbox platforms */ |
155 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX) |
156 | |
157 | #ifndef LEGACY_WIN32 |
158 | #define LEGACY_WIN32 |
159 | #endif |
160 | |
161 | #endif |
162 | |
163 | #if defined(_WIN32) |
164 | #if defined(_MSC_VER) && _MSC_VER >= 1400 |
165 | #define ATLEAST_VC2005 |
166 | #endif |
167 | #endif |
168 | |
169 | #include <vfs/vfs_implementation.h> |
170 | #include <libretro.h> |
171 | #include <memmap.h> |
172 | #include <encodings/utf.h> |
173 | #include <compat/fopen_utf8.h> |
174 | #include <file/file_path.h> |
175 | |
176 | #ifdef HAVE_CDROM |
177 | #include <vfs/vfs_implementation_cdrom.h> |
178 | #endif |
179 | |
180 | #if (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE - 0) >= 200112) || (defined(__POSIX_VISIBLE) && __POSIX_VISIBLE >= 200112) || (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112) || __USE_LARGEFILE || (defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64) |
181 | #ifndef HAVE_64BIT_OFFSETS |
182 | #define HAVE_64BIT_OFFSETS |
183 | #endif |
184 | #endif |
185 | |
186 | #define RFILE_HINT_UNBUFFERED (1 << 8) |
187 | |
188 | int64_t retro_vfs_file_seek_internal( |
189 | libretro_vfs_implementation_file *stream, |
190 | int64_t offset, int whence) |
191 | { |
192 | if (!stream) |
193 | return -1; |
194 | |
195 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
196 | { |
197 | #ifdef HAVE_CDROM |
198 | if (stream->scheme == VFS_SCHEME_CDROM) |
199 | return retro_vfs_file_seek_cdrom(stream, offset, whence); |
200 | #endif |
201 | #ifdef ATLEAST_VC2005 |
202 | /* VC2005 and up have a special 64-bit fseek */ |
203 | return _fseeki64(stream->fp, offset, whence); |
204 | #elif defined(ORBIS) |
205 | { |
206 | int ret = orbisLseek(stream->fd, offset, whence); |
207 | if (ret < 0) |
208 | return -1; |
209 | return 0; |
210 | } |
211 | #elif defined(HAVE_64BIT_OFFSETS) |
212 | return fseeko(stream->fp, (off_t)offset, whence); |
213 | #else |
214 | return fseek(stream->fp, (long)offset, whence); |
215 | #endif |
216 | } |
217 | #ifdef HAVE_MMAP |
218 | /* Need to check stream->mapped because this function is |
219 | * called in filestream_open() */ |
220 | if (stream->mapped && stream->hints & |
221 | RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
222 | { |
223 | /* fseek() returns error on under/overflow but |
224 | * allows cursor > EOF for |
225 | read-only file descriptors. */ |
226 | switch (whence) |
227 | { |
228 | case SEEK_SET: |
229 | if (offset < 0) |
230 | return -1; |
231 | |
232 | stream->mappos = offset; |
233 | break; |
234 | |
235 | case SEEK_CUR: |
236 | if ( (offset < 0 && stream->mappos + offset > stream->mappos) || |
237 | (offset > 0 && stream->mappos + offset < stream->mappos)) |
238 | return -1; |
239 | |
240 | stream->mappos += offset; |
241 | break; |
242 | |
243 | case SEEK_END: |
244 | if (stream->mapsize + offset < stream->mapsize) |
245 | return -1; |
246 | |
247 | stream->mappos = stream->mapsize + offset; |
248 | break; |
249 | } |
250 | return stream->mappos; |
251 | } |
252 | #endif |
253 | |
254 | if (lseek(stream->fd, (off_t)offset, whence) < 0) |
255 | return -1; |
256 | |
257 | return 0; |
258 | } |
259 | |
260 | /** |
261 | * retro_vfs_file_open_impl: |
262 | * @path : path to file |
263 | * @mode : file mode to use when opening (read/write) |
264 | * @hints : |
265 | * |
266 | * Opens a file for reading or writing, depending on the requested mode. |
267 | * Returns a pointer to an RFILE if opened successfully, otherwise NULL. |
268 | **/ |
269 | |
270 | libretro_vfs_implementation_file *retro_vfs_file_open_impl( |
271 | const char *path, unsigned mode, unsigned hints) |
272 | { |
273 | #if defined(VFS_FRONTEND) || defined(HAVE_CDROM) |
274 | int path_len = (int)strlen(path); |
275 | #endif |
276 | #ifdef VFS_FRONTEND |
277 | const char *dumb_prefix = "vfsonly://"; |
278 | size_t dumb_prefix_siz = STRLEN_CONST("vfsonly://"); |
279 | int dumb_prefix_len = (int)dumb_prefix_siz; |
280 | #endif |
281 | #ifdef HAVE_CDROM |
282 | const char *cdrom_prefix = "cdrom://"; |
283 | size_t cdrom_prefix_siz = STRLEN_CONST("cdrom://"); |
284 | int cdrom_prefix_len = (int)cdrom_prefix_siz; |
285 | #endif |
286 | int flags = 0; |
287 | const char *mode_str = NULL; |
288 | libretro_vfs_implementation_file *stream = |
289 | (libretro_vfs_implementation_file*) |
290 | malloc(sizeof(*stream)); |
291 | |
292 | if (!stream) |
293 | return NULL; |
294 | |
295 | stream->fd = 0; |
296 | stream->hints = hints; |
297 | stream->size = 0; |
298 | stream->buf = NULL; |
299 | stream->fp = NULL; |
300 | #ifdef _WIN32 |
301 | stream->fh = 0; |
302 | #endif |
303 | stream->orig_path = NULL; |
304 | stream->mappos = 0; |
305 | stream->mapsize = 0; |
306 | stream->mapped = NULL; |
307 | stream->scheme = VFS_SCHEME_NONE; |
308 | |
309 | #ifdef VFS_FRONTEND |
310 | if (path_len >= dumb_prefix_len) |
311 | if (!memcmp(path, dumb_prefix, dumb_prefix_len)) |
312 | path += dumb_prefix_siz; |
313 | #endif |
314 | |
315 | #ifdef HAVE_CDROM |
316 | stream->cdrom.cue_buf = NULL; |
317 | stream->cdrom.cue_len = 0; |
318 | stream->cdrom.byte_pos = 0; |
319 | stream->cdrom.drive = 0; |
320 | stream->cdrom.cur_min = 0; |
321 | stream->cdrom.cur_sec = 0; |
322 | stream->cdrom.cur_frame = 0; |
323 | stream->cdrom.cur_track = 0; |
324 | stream->cdrom.cur_lba = 0; |
325 | stream->cdrom.last_frame_lba = 0; |
326 | stream->cdrom.last_frame[0] = '\0'; |
327 | stream->cdrom.last_frame_valid = false; |
328 | |
329 | if (path_len > cdrom_prefix_len) |
330 | { |
331 | if (!memcmp(path, cdrom_prefix, cdrom_prefix_len)) |
332 | { |
333 | path += cdrom_prefix_siz; |
334 | stream->scheme = VFS_SCHEME_CDROM; |
335 | } |
336 | } |
337 | #endif |
338 | |
339 | stream->orig_path = strdup(path); |
340 | |
341 | #ifdef HAVE_MMAP |
342 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS && mode == RETRO_VFS_FILE_ACCESS_READ) |
343 | stream->hints |= RFILE_HINT_UNBUFFERED; |
344 | else |
345 | #endif |
346 | stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; |
347 | |
348 | switch (mode) |
349 | { |
350 | case RETRO_VFS_FILE_ACCESS_READ: |
351 | mode_str = "rb"; |
352 | |
353 | flags = O_RDONLY; |
354 | #ifdef _WIN32 |
355 | flags |= O_BINARY; |
356 | #endif |
357 | break; |
358 | |
359 | case RETRO_VFS_FILE_ACCESS_WRITE: |
360 | mode_str = "wb"; |
361 | |
362 | flags = O_WRONLY | O_CREAT | O_TRUNC; |
363 | #if !defined(ORBIS) |
364 | #if !defined(_WIN32) |
365 | flags |= S_IRUSR | S_IWUSR; |
366 | #else |
367 | flags |= O_BINARY; |
368 | #endif |
369 | #endif |
370 | break; |
371 | |
372 | case RETRO_VFS_FILE_ACCESS_READ_WRITE: |
373 | mode_str = "w+b"; |
374 | flags = O_RDWR | O_CREAT | O_TRUNC; |
375 | #if !defined(ORBIS) |
376 | #if !defined(_WIN32) |
377 | flags |= S_IRUSR | S_IWUSR; |
378 | #else |
379 | flags |= O_BINARY; |
380 | #endif |
381 | #endif |
382 | break; |
383 | |
384 | case RETRO_VFS_FILE_ACCESS_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: |
385 | case RETRO_VFS_FILE_ACCESS_READ_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: |
386 | mode_str = "r+b"; |
387 | |
388 | flags = O_RDWR; |
389 | #if !defined(ORBIS) |
390 | #if !defined(_WIN32) |
391 | flags |= S_IRUSR | S_IWUSR; |
392 | #else |
393 | flags |= O_BINARY; |
394 | #endif |
395 | #endif |
396 | break; |
397 | |
398 | default: |
399 | goto error; |
400 | } |
401 | |
402 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
403 | { |
404 | #ifdef ORBIS |
405 | int fd = orbisOpen(path, flags, 0644); |
406 | if (fd < 0) |
407 | { |
408 | stream->fd = -1; |
409 | goto error; |
410 | } |
411 | stream->fd = fd; |
412 | #else |
413 | FILE *fp; |
414 | #ifdef HAVE_CDROM |
415 | if (stream->scheme == VFS_SCHEME_CDROM) |
416 | { |
417 | retro_vfs_file_open_cdrom(stream, path, mode, hints); |
418 | #if defined(_WIN32) && !defined(_XBOX) |
419 | if (!stream->fh) |
420 | goto error; |
421 | #else |
422 | if (!stream->fp) |
423 | goto error; |
424 | #endif |
425 | } |
426 | else |
427 | #endif |
428 | { |
429 | fp = (FILE*)fopen_utf8(path, mode_str); |
430 | |
431 | if (!fp) |
432 | goto error; |
433 | |
434 | stream->fp = fp; |
435 | } |
436 | /* Regarding setvbuf: |
437 | * |
438 | * https://www.freebsd.org/cgi/man.cgi?query=setvbuf&apropos=0&sektion=0&manpath=FreeBSD+11.1-RELEASE&arch=default&format=html |
439 | * |
440 | * If the size argument is not zero but buf is NULL, |
441 | * a buffer of the given size will be allocated immediately, and |
442 | * released on close. This is an extension to ANSI C. |
443 | * |
444 | * Since C89 does not support specifying a NULL buffer |
445 | * with a non-zero size, we create and track our own buffer for it. |
446 | */ |
447 | /* TODO: this is only useful for a few platforms, |
448 | * find which and add ifdef */ |
449 | #if defined(_3DS) |
450 | if (stream->scheme != VFS_SCHEME_CDROM) |
451 | { |
452 | stream->buf = (char*)calloc(1, 0x10000); |
453 | if (stream->fp) |
454 | setvbuf(stream->fp, stream->buf, _IOFBF, 0x10000); |
455 | } |
456 | #elif !defined(PSP) |
457 | if (stream->scheme != VFS_SCHEME_CDROM) |
458 | { |
459 | stream->buf = (char*)calloc(1, 0x4000); |
460 | if (stream->fp) |
461 | setvbuf(stream->fp, stream->buf, _IOFBF, 0x4000); |
462 | } |
463 | #endif |
464 | #endif |
465 | } |
466 | else |
467 | { |
468 | #if defined(_WIN32) && !defined(_XBOX) |
469 | #if defined(LEGACY_WIN32) |
470 | char *path_local = utf8_to_local_string_alloc(path); |
471 | stream->fd = open(path_local, flags, 0); |
472 | if (path_local) |
473 | free(path_local); |
474 | #else |
475 | wchar_t * path_wide = utf8_to_utf16_string_alloc(path); |
476 | stream->fd = _wopen(path_wide, flags, 0); |
477 | if (path_wide) |
478 | free(path_wide); |
479 | #endif |
480 | #else |
481 | stream->fd = open(path, flags, 0); |
482 | #endif |
483 | |
484 | if (stream->fd == -1) |
485 | goto error; |
486 | |
487 | #ifdef HAVE_MMAP |
488 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
489 | { |
490 | stream->mappos = 0; |
491 | stream->mapped = NULL; |
492 | stream->mapsize = retro_vfs_file_seek_internal(stream, 0, SEEK_END); |
493 | |
494 | if (stream->mapsize == (uint64_t)-1) |
495 | goto error; |
496 | |
497 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
498 | |
499 | stream->mapped = (uint8_t*)mmap((void*)0, |
500 | stream->mapsize, PROT_READ, MAP_SHARED, stream->fd, 0); |
501 | |
502 | if (stream->mapped == MAP_FAILED) |
503 | stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; |
504 | } |
505 | #endif |
506 | } |
507 | #ifdef ORBIS |
508 | stream->size = orbisLseek(stream->fd, 0, SEEK_END); |
509 | orbisLseek(stream->fd, 0, SEEK_SET); |
510 | #else |
511 | #ifdef HAVE_CDROM |
512 | if (stream->scheme == VFS_SCHEME_CDROM) |
513 | { |
514 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET); |
515 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_END); |
516 | |
517 | stream->size = retro_vfs_file_tell_impl(stream); |
518 | |
519 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET); |
520 | } |
521 | else |
522 | #endif |
523 | { |
524 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
525 | retro_vfs_file_seek_internal(stream, 0, SEEK_END); |
526 | |
527 | stream->size = retro_vfs_file_tell_impl(stream); |
528 | |
529 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
530 | } |
531 | #endif |
532 | return stream; |
533 | |
534 | error: |
535 | retro_vfs_file_close_impl(stream); |
536 | return NULL; |
537 | } |
538 | |
539 | int retro_vfs_file_close_impl(libretro_vfs_implementation_file *stream) |
540 | { |
541 | if (!stream) |
542 | return -1; |
543 | |
544 | #ifdef HAVE_CDROM |
545 | if (stream->scheme == VFS_SCHEME_CDROM) |
546 | { |
547 | retro_vfs_file_close_cdrom(stream); |
548 | goto end; |
549 | } |
550 | #endif |
551 | |
552 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
553 | { |
554 | if (stream->fp) |
555 | fclose(stream->fp); |
556 | } |
557 | else |
558 | { |
559 | #ifdef HAVE_MMAP |
560 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
561 | munmap(stream->mapped, stream->mapsize); |
562 | #endif |
563 | } |
564 | |
565 | if (stream->fd > 0) |
566 | { |
567 | #ifdef ORBIS |
568 | orbisClose(stream->fd); |
569 | stream->fd = -1; |
570 | #else |
571 | close(stream->fd); |
572 | #endif |
573 | } |
574 | #ifdef HAVE_CDROM |
575 | end: |
576 | if (stream->cdrom.cue_buf) |
577 | free(stream->cdrom.cue_buf); |
578 | #endif |
579 | if (stream->buf) |
580 | free(stream->buf); |
581 | |
582 | if (stream->orig_path) |
583 | free(stream->orig_path); |
584 | |
585 | free(stream); |
586 | |
587 | return 0; |
588 | } |
589 | |
590 | int retro_vfs_file_error_impl(libretro_vfs_implementation_file *stream) |
591 | { |
592 | #ifdef HAVE_CDROM |
593 | if (stream->scheme == VFS_SCHEME_CDROM) |
594 | return retro_vfs_file_error_cdrom(stream); |
595 | #endif |
596 | #ifdef ORBIS |
597 | /* TODO/FIXME - implement this? */ |
598 | return 0; |
599 | #else |
600 | return ferror(stream->fp); |
601 | #endif |
602 | } |
603 | |
604 | int64_t retro_vfs_file_size_impl(libretro_vfs_implementation_file *stream) |
605 | { |
606 | if (stream) |
607 | return stream->size; |
608 | return 0; |
609 | } |
610 | |
611 | int64_t retro_vfs_file_truncate_impl(libretro_vfs_implementation_file *stream, int64_t length) |
612 | { |
613 | if (!stream) |
614 | return -1; |
615 | |
616 | #ifdef _WIN32 |
617 | if (_chsize(_fileno(stream->fp), length) != 0) |
618 | return -1; |
619 | #elif !defined(VITA) && !defined(PSP) && !defined(PS2) && !defined(ORBIS) && (!defined(SWITCH) || defined(HAVE_LIBNX)) |
620 | if (ftruncate(fileno(stream->fp), (off_t)length) != 0) |
621 | return -1; |
622 | #endif |
623 | |
624 | return 0; |
625 | } |
626 | |
627 | int64_t retro_vfs_file_tell_impl(libretro_vfs_implementation_file *stream) |
628 | { |
629 | if (!stream) |
630 | return -1; |
631 | |
632 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
633 | { |
634 | #ifdef HAVE_CDROM |
635 | if (stream->scheme == VFS_SCHEME_CDROM) |
636 | return retro_vfs_file_tell_cdrom(stream); |
637 | #endif |
638 | #ifdef ORBIS |
639 | { |
640 | int64_t ret = orbisLseek(stream->fd, 0, SEEK_CUR); |
641 | if (ret < 0) |
642 | return -1; |
643 | return ret; |
644 | } |
645 | #else |
646 | #ifdef ATLEAST_VC2005 |
647 | /* VC2005 and up have a special 64-bit ftell */ |
648 | return _ftelli64(stream->fp); |
649 | #elif defined(HAVE_64BIT_OFFSETS) |
650 | return ftello(stream->fp); |
651 | #else |
652 | return ftell(stream->fp); |
653 | #endif |
654 | #endif |
655 | } |
656 | #ifdef HAVE_MMAP |
657 | /* Need to check stream->mapped because this function |
658 | * is called in filestream_open() */ |
659 | if (stream->mapped && stream->hints & |
660 | RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
661 | return stream->mappos; |
662 | #endif |
663 | if (lseek(stream->fd, 0, SEEK_CUR) < 0) |
664 | return -1; |
665 | |
666 | return 0; |
667 | } |
668 | |
669 | int64_t retro_vfs_file_seek_impl(libretro_vfs_implementation_file *stream, |
670 | int64_t offset, int seek_position) |
671 | { |
672 | int whence = -1; |
673 | switch (seek_position) |
674 | { |
675 | case RETRO_VFS_SEEK_POSITION_START: |
676 | whence = SEEK_SET; |
677 | break; |
678 | case RETRO_VFS_SEEK_POSITION_CURRENT: |
679 | whence = SEEK_CUR; |
680 | break; |
681 | case RETRO_VFS_SEEK_POSITION_END: |
682 | whence = SEEK_END; |
683 | break; |
684 | } |
685 | |
686 | return retro_vfs_file_seek_internal(stream, offset, whence); |
687 | } |
688 | |
689 | int64_t retro_vfs_file_read_impl(libretro_vfs_implementation_file *stream, |
690 | void *s, uint64_t len) |
691 | { |
692 | if (!stream || !s) |
693 | return -1; |
694 | |
695 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
696 | { |
697 | #ifdef HAVE_CDROM |
698 | if (stream->scheme == VFS_SCHEME_CDROM) |
699 | return retro_vfs_file_read_cdrom(stream, s, len); |
700 | #endif |
701 | #ifdef ORBIS |
702 | if (orbisRead(stream->fd, s, (size_t)len) < 0) |
703 | return -1; |
704 | return 0; |
705 | #else |
706 | return fread(s, 1, (size_t)len, stream->fp); |
707 | #endif |
708 | } |
709 | #ifdef HAVE_MMAP |
710 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
711 | { |
712 | if (stream->mappos > stream->mapsize) |
713 | return -1; |
714 | |
715 | if (stream->mappos + len > stream->mapsize) |
716 | len = stream->mapsize - stream->mappos; |
717 | |
718 | memcpy(s, &stream->mapped[stream->mappos], len); |
719 | stream->mappos += len; |
720 | |
721 | return len; |
722 | } |
723 | #endif |
724 | |
725 | return read(stream->fd, s, (size_t)len); |
726 | } |
727 | |
728 | int64_t retro_vfs_file_write_impl(libretro_vfs_implementation_file *stream, const void *s, uint64_t len) |
729 | { |
730 | if (!stream) |
731 | return -1; |
732 | |
733 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
734 | { |
735 | #ifdef ORBIS |
736 | if (orbisWrite(stream->fd, s, (size_t)len) < 0) |
737 | return -1; |
738 | return 0; |
739 | #else |
740 | return fwrite(s, 1, (size_t)len, stream->fp); |
741 | #endif |
742 | } |
743 | |
744 | #ifdef HAVE_MMAP |
745 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
746 | return -1; |
747 | #endif |
748 | return write(stream->fd, s, (size_t)len); |
749 | } |
750 | |
751 | int retro_vfs_file_flush_impl(libretro_vfs_implementation_file *stream) |
752 | { |
753 | if (!stream) |
754 | return -1; |
755 | #ifdef ORBIS |
756 | return 0; |
757 | #else |
758 | return fflush(stream->fp) == 0 ? 0 : -1; |
759 | #endif |
760 | } |
761 | |
762 | int retro_vfs_file_remove_impl(const char *path) |
763 | { |
764 | #if defined(_WIN32) && !defined(_XBOX) |
765 | /* Win32 (no Xbox) */ |
766 | |
767 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
768 | char *path_local = NULL; |
769 | #else |
770 | wchar_t *path_wide = NULL; |
771 | #endif |
772 | if (!path || !*path) |
773 | return -1; |
774 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
775 | path_local = utf8_to_local_string_alloc(path); |
776 | |
777 | if (path_local) |
778 | { |
779 | int ret = remove(path_local); |
780 | free(path_local); |
781 | |
782 | if (ret == 0) |
783 | return 0; |
784 | } |
785 | #else |
786 | path_wide = utf8_to_utf16_string_alloc(path); |
787 | |
788 | if (path_wide) |
789 | { |
790 | int ret = _wremove(path_wide); |
791 | free(path_wide); |
792 | |
793 | if (ret == 0) |
794 | return 0; |
795 | } |
796 | #endif |
797 | return -1; |
798 | #elif defined(ORBIS) |
799 | /* Orbis |
800 | * TODO/FIXME - stub for now */ |
801 | return 0; |
802 | #else |
803 | if (remove(path) == 0) |
804 | return 0; |
805 | return -1; |
806 | #endif |
807 | } |
808 | |
809 | int retro_vfs_file_rename_impl(const char *old_path, const char *new_path) |
810 | { |
811 | #if defined(_WIN32) && !defined(_XBOX) |
812 | /* Win32 (no Xbox) */ |
813 | int ret = -1; |
814 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
815 | char *old_path_local = NULL; |
816 | #else |
817 | wchar_t *old_path_wide = NULL; |
818 | #endif |
819 | |
820 | if (!old_path || !*old_path || !new_path || !*new_path) |
821 | return -1; |
822 | |
823 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
824 | old_path_local = utf8_to_local_string_alloc(old_path); |
825 | |
826 | if (old_path_local) |
827 | { |
828 | char *new_path_local = utf8_to_local_string_alloc(new_path); |
829 | |
830 | if (new_path_local) |
831 | { |
832 | if (rename(old_path_local, new_path_local) == 0) |
833 | ret = 0; |
834 | free(new_path_local); |
835 | } |
836 | |
837 | free(old_path_local); |
838 | } |
839 | #else |
840 | old_path_wide = utf8_to_utf16_string_alloc(old_path); |
841 | |
842 | if (old_path_wide) |
843 | { |
844 | wchar_t *new_path_wide = utf8_to_utf16_string_alloc(new_path); |
845 | |
846 | if (new_path_wide) |
847 | { |
848 | if (_wrename(old_path_wide, new_path_wide) == 0) |
849 | ret = 0; |
850 | free(new_path_wide); |
851 | } |
852 | |
853 | free(old_path_wide); |
854 | } |
855 | #endif |
856 | return ret; |
857 | |
858 | #elif defined(ORBIS) |
859 | /* Orbis */ |
860 | /* TODO/FIXME - Stub for now */ |
861 | if (!old_path || !*old_path || !new_path || !*new_path) |
862 | return -1; |
863 | return 0; |
864 | |
865 | #else |
866 | /* Every other platform */ |
867 | if (!old_path || !*old_path || !new_path || !*new_path) |
868 | return -1; |
869 | return rename(old_path, new_path) == 0 ? 0 : -1; |
870 | #endif |
871 | } |
872 | |
873 | const char *retro_vfs_file_get_path_impl( |
874 | libretro_vfs_implementation_file *stream) |
875 | { |
876 | /* should never happen, do something noisy so caller can be fixed */ |
877 | if (!stream) |
878 | abort(); |
879 | return stream->orig_path; |
880 | } |
881 | |
882 | int retro_vfs_stat_impl(const char *path, int32_t *size) |
883 | { |
884 | bool is_dir = false; |
885 | bool is_character_special = false; |
886 | #if defined(VITA) || defined(PSP) |
887 | /* Vita / PSP */ |
888 | SceIoStat buf; |
889 | int dir_ret; |
890 | char *tmp = NULL; |
891 | size_t len = 0; |
892 | |
893 | if (!path || !*path) |
894 | return 0; |
895 | |
896 | tmp = strdup(path); |
897 | len = strlen(tmp); |
898 | if (tmp[len-1] == '/') |
899 | tmp[len-1] = '\0'; |
900 | |
901 | dir_ret = sceIoGetstat(tmp, &buf); |
902 | free(tmp); |
903 | if (dir_ret < 0) |
904 | return 0; |
905 | |
906 | if (size) |
907 | *size = (int32_t)buf.st_size; |
908 | |
909 | is_dir = FIO_S_ISDIR(buf.st_mode); |
910 | #elif defined(ORBIS) |
911 | /* Orbis */ |
912 | int dir_ret = 0; |
913 | |
914 | if (!path || !*path) |
915 | return 0; |
916 | |
917 | if (size) |
918 | *size = (int32_t)buf.st_size; |
919 | |
920 | dir_ret = orbisDopen(path); |
921 | is_dir = dir_ret > 0; |
922 | orbisDclose(dir_ret); |
923 | |
924 | is_character_special = S_ISCHR(buf.st_mode); |
925 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
926 | /* CellOS Lv2 */ |
927 | CellFsStat buf; |
928 | |
929 | if (!path || !*path) |
930 | return 0; |
931 | if (cellFsStat(path, &buf) < 0) |
932 | return 0; |
933 | |
934 | if (size) |
935 | *size = (int32_t)buf.st_size; |
936 | |
937 | is_dir = ((buf.st_mode & S_IFMT) == S_IFDIR); |
938 | |
939 | #elif defined(_WIN32) |
940 | /* Windows */ |
941 | DWORD file_info; |
942 | struct _stat buf; |
943 | #if defined(LEGACY_WIN32) |
944 | char *path_local = NULL; |
945 | #else |
946 | wchar_t *path_wide = NULL; |
947 | #endif |
948 | |
949 | if (!path || !*path) |
950 | return 0; |
951 | |
952 | #if defined(LEGACY_WIN32) |
953 | path_local = utf8_to_local_string_alloc(path); |
954 | file_info = GetFileAttributes(path_local); |
955 | |
956 | if (!string_is_empty(path_local)) |
957 | _stat(path_local, &buf); |
958 | |
959 | if (path_local) |
960 | free(path_local); |
961 | #else |
962 | path_wide = utf8_to_utf16_string_alloc(path); |
963 | file_info = GetFileAttributesW(path_wide); |
964 | |
965 | _wstat(path_wide, &buf); |
966 | |
967 | if (path_wide) |
968 | free(path_wide); |
969 | #endif |
970 | |
971 | if (file_info == INVALID_FILE_ATTRIBUTES) |
972 | return 0; |
973 | |
974 | if (size) |
975 | *size = (int32_t)buf.st_size; |
976 | |
977 | is_dir = (file_info & FILE_ATTRIBUTE_DIRECTORY); |
978 | |
979 | #elif defined(GEKKO) |
980 | /* On GEKKO platforms, paths cannot have |
981 | * trailing slashes - we must therefore |
982 | * remove them */ |
983 | char *path_buf = NULL; |
984 | int stat_ret = -1; |
985 | struct stat stat_buf; |
986 | size_t len; |
987 | |
988 | if (string_is_empty(path)) |
989 | return 0; |
990 | |
991 | path_buf = strdup(path); |
992 | if (!path_buf) |
993 | return 0; |
994 | |
995 | len = strlen(path_buf); |
996 | if (len > 0) |
997 | if (path_buf[len - 1] == '/') |
998 | path_buf[len - 1] = '\0'; |
999 | |
1000 | stat_ret = stat(path_buf, &stat_buf); |
1001 | free(path_buf); |
1002 | |
1003 | if (stat_ret < 0) |
1004 | return 0; |
1005 | |
1006 | if (size) |
1007 | *size = (int32_t)stat_buf.st_size; |
1008 | |
1009 | is_dir = S_ISDIR(stat_buf.st_mode); |
1010 | is_character_special = S_ISCHR(stat_buf.st_mode); |
1011 | |
1012 | #else |
1013 | /* Every other platform */ |
1014 | struct stat buf; |
1015 | |
1016 | if (!path || !*path) |
1017 | return 0; |
1018 | if (stat(path, &buf) < 0) |
1019 | return 0; |
1020 | |
1021 | if (size) |
1022 | *size = (int32_t)buf.st_size; |
1023 | |
1024 | is_dir = S_ISDIR(buf.st_mode); |
1025 | is_character_special = S_ISCHR(buf.st_mode); |
1026 | #endif |
1027 | return RETRO_VFS_STAT_IS_VALID | (is_dir ? RETRO_VFS_STAT_IS_DIRECTORY : 0) | (is_character_special ? RETRO_VFS_STAT_IS_CHARACTER_SPECIAL : 0); |
1028 | } |
1029 | |
1030 | #if defined(VITA) |
1031 | #define path_mkdir_error(ret) (((ret) == SCE_ERROR_ERRNO_EEXIST)) |
1032 | #elif defined(PSP) || defined(PS2) || defined(_3DS) || defined(WIIU) || defined(SWITCH) || defined(ORBIS) |
1033 | #define path_mkdir_error(ret) ((ret) == -1) |
1034 | #else |
1035 | #define path_mkdir_error(ret) ((ret) < 0 && errno == EEXIST) |
1036 | #endif |
1037 | |
1038 | int retro_vfs_mkdir_impl(const char *dir) |
1039 | { |
1040 | #if defined(_WIN32) |
1041 | #ifdef LEGACY_WIN32 |
1042 | int ret = _mkdir(dir); |
1043 | #else |
1044 | wchar_t *dir_w = utf8_to_utf16_string_alloc(dir); |
1045 | int ret = -1; |
1046 | |
1047 | if (dir_w) |
1048 | { |
1049 | ret = _wmkdir(dir_w); |
1050 | free(dir_w); |
1051 | } |
1052 | #endif |
1053 | #elif defined(IOS) |
1054 | int ret = mkdir(dir, 0755); |
1055 | #elif defined(VITA) || defined(PSP) |
1056 | int ret = sceIoMkdir(dir, 0777); |
1057 | #elif defined(ORBIS) |
1058 | int ret = orbisMkdir(dir, 0755); |
1059 | #elif defined(__QNX__) |
1060 | int ret = mkdir(dir, 0777); |
1061 | #elif defined(GEKKO) |
1062 | /* On GEKKO platforms, mkdir() fails if |
1063 | * the path has a trailing slash. We must |
1064 | * therefore remove it. */ |
1065 | int ret = -1; |
1066 | if (!string_is_empty(dir)) |
1067 | { |
1068 | char *dir_buf = strdup(dir); |
1069 | |
1070 | if (dir_buf) |
1071 | { |
1072 | size_t len = strlen(dir_buf); |
1073 | |
1074 | if (len > 0) |
1075 | if (dir_buf[len - 1] == '/') |
1076 | dir_buf[len - 1] = '\0'; |
1077 | |
1078 | ret = mkdir(dir_buf, 0750); |
1079 | |
1080 | free(dir_buf); |
1081 | } |
1082 | } |
1083 | #else |
1084 | int ret = mkdir(dir, 0750); |
1085 | #endif |
1086 | |
1087 | if (path_mkdir_error(ret)) |
1088 | return -2; |
1089 | return ret < 0 ? -1 : 0; |
1090 | } |
1091 | |
1092 | #ifdef VFS_FRONTEND |
1093 | struct retro_vfs_dir_handle |
1094 | #else |
1095 | struct libretro_vfs_implementation_dir |
1096 | #endif |
1097 | { |
1098 | char* orig_path; |
1099 | #if defined(_WIN32) |
1100 | #if defined(LEGACY_WIN32) |
1101 | WIN32_FIND_DATA entry; |
1102 | #else |
1103 | WIN32_FIND_DATAW entry; |
1104 | #endif |
1105 | HANDLE directory; |
1106 | bool next; |
1107 | char path[PATH_MAX_LENGTH]; |
1108 | #elif defined(VITA) || defined(PSP) |
1109 | SceUID directory; |
1110 | SceIoDirent entry; |
1111 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1112 | CellFsErrno error; |
1113 | int directory; |
1114 | CellFsDirent entry; |
1115 | #elif defined(ORBIS) |
1116 | int directory; |
1117 | struct dirent entry; |
1118 | #else |
1119 | DIR *directory; |
1120 | const struct dirent *entry; |
1121 | #endif |
1122 | }; |
1123 | |
1124 | static bool dirent_check_error(libretro_vfs_implementation_dir *rdir) |
1125 | { |
1126 | #if defined(_WIN32) |
1127 | return (rdir->directory == INVALID_HANDLE_VALUE); |
1128 | #elif defined(VITA) || defined(PSP) || defined(ORBIS) |
1129 | return (rdir->directory < 0); |
1130 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1131 | return (rdir->error != CELL_FS_SUCCEEDED); |
1132 | #else |
1133 | return !(rdir->directory); |
1134 | #endif |
1135 | } |
1136 | |
1137 | libretro_vfs_implementation_dir *retro_vfs_opendir_impl( |
1138 | const char *name, bool include_hidden) |
1139 | { |
1140 | #if defined(_WIN32) |
1141 | unsigned path_len; |
1142 | char path_buf[1024]; |
1143 | size_t copied = 0; |
1144 | #if defined(LEGACY_WIN32) |
1145 | char *path_local = NULL; |
1146 | #else |
1147 | wchar_t *path_wide = NULL; |
1148 | #endif |
1149 | #endif |
1150 | libretro_vfs_implementation_dir *rdir; |
1151 | |
1152 | /*Reject null or empty string paths*/ |
1153 | if (!name || (*name == 0)) |
1154 | return NULL; |
1155 | |
1156 | /*Allocate RDIR struct. Tidied later with retro_closedir*/ |
1157 | rdir = (libretro_vfs_implementation_dir*)calloc(1, sizeof(*rdir)); |
1158 | if (!rdir) |
1159 | return NULL; |
1160 | |
1161 | rdir->orig_path = strdup(name); |
1162 | |
1163 | #if defined(_WIN32) |
1164 | path_buf[0] = '\0'; |
1165 | path_len = strlen(name); |
1166 | |
1167 | copied = strlcpy(path_buf, name, sizeof(path_buf)); |
1168 | |
1169 | /* Non-NT platforms don't like extra slashes in the path */ |
1170 | if (name[path_len - 1] != '\\') |
1171 | path_buf[copied++] = '\\'; |
1172 | |
1173 | path_buf[copied] = '*'; |
1174 | path_buf[copied+1] = '\0'; |
1175 | |
1176 | #if defined(LEGACY_WIN32) |
1177 | path_local = utf8_to_local_string_alloc(path_buf); |
1178 | rdir->directory = FindFirstFile(path_local, &rdir->entry); |
1179 | |
1180 | if (path_local) |
1181 | free(path_local); |
1182 | #else |
1183 | path_wide = utf8_to_utf16_string_alloc(path_buf); |
1184 | rdir->directory = FindFirstFileW(path_wide, &rdir->entry); |
1185 | |
1186 | if (path_wide) |
1187 | free(path_wide); |
1188 | #endif |
1189 | |
1190 | #elif defined(VITA) || defined(PSP) |
1191 | rdir->directory = sceIoDopen(name); |
1192 | #elif defined(_3DS) |
1193 | rdir->directory = !string_is_empty(name) ? opendir(name) : NULL; |
1194 | rdir->entry = NULL; |
1195 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1196 | rdir->error = cellFsOpendir(name, &rdir->directory); |
1197 | #elif defined(ORBIS) |
1198 | rdir->directory = orbisDopen(name); |
1199 | #else |
1200 | rdir->directory = opendir(name); |
1201 | rdir->entry = NULL; |
1202 | #endif |
1203 | |
1204 | #ifdef _WIN32 |
1205 | if (include_hidden) |
1206 | rdir->entry.dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN; |
1207 | else |
1208 | rdir->entry.dwFileAttributes &= ~FILE_ATTRIBUTE_HIDDEN; |
1209 | #endif |
1210 | |
1211 | if (rdir->directory && !dirent_check_error(rdir)) |
1212 | return rdir; |
1213 | |
1214 | retro_vfs_closedir_impl(rdir); |
1215 | return NULL; |
1216 | } |
1217 | |
1218 | bool retro_vfs_readdir_impl(libretro_vfs_implementation_dir *rdir) |
1219 | { |
1220 | #if defined(_WIN32) |
1221 | if (rdir->next) |
1222 | #if defined(LEGACY_WIN32) |
1223 | return (FindNextFile(rdir->directory, &rdir->entry) != 0); |
1224 | #else |
1225 | return (FindNextFileW(rdir->directory, &rdir->entry) != 0); |
1226 | #endif |
1227 | |
1228 | rdir->next = true; |
1229 | return (rdir->directory != INVALID_HANDLE_VALUE); |
1230 | #elif defined(VITA) || defined(PSP) |
1231 | return (sceIoDread(rdir->directory, &rdir->entry) > 0); |
1232 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1233 | uint64_t nread; |
1234 | rdir->error = cellFsReaddir(rdir->directory, &rdir->entry, &nread); |
1235 | return (nread != 0); |
1236 | #elif defined(ORBIS) |
1237 | return (orbisDread(rdir->directory, &rdir->entry) > 0); |
1238 | #else |
1239 | return ((rdir->entry = readdir(rdir->directory)) != NULL); |
1240 | #endif |
1241 | } |
1242 | |
1243 | const char *retro_vfs_dirent_get_name_impl(libretro_vfs_implementation_dir *rdir) |
1244 | { |
1245 | #if defined(_WIN32) |
1246 | #if defined(LEGACY_WIN32) |
1247 | char *name = local_to_utf8_string_alloc(rdir->entry.cFileName); |
1248 | #else |
1249 | char *name = utf16_to_utf8_string_alloc(rdir->entry.cFileName); |
1250 | #endif |
1251 | memset(rdir->entry.cFileName, 0, sizeof(rdir->entry.cFileName)); |
1252 | strlcpy((char*)rdir->entry.cFileName, name, sizeof(rdir->entry.cFileName)); |
1253 | if (name) |
1254 | free(name); |
1255 | return (char*)rdir->entry.cFileName; |
1256 | #elif defined(VITA) || defined(PSP) || defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) || defined(ORBIS) |
1257 | return rdir->entry.d_name; |
1258 | #else |
1259 | if (!rdir || !rdir->entry) |
1260 | return NULL; |
1261 | return rdir->entry->d_name; |
1262 | #endif |
1263 | } |
1264 | |
1265 | bool retro_vfs_dirent_is_dir_impl(libretro_vfs_implementation_dir *rdir) |
1266 | { |
1267 | #if defined(_WIN32) |
1268 | const WIN32_FIND_DATA *entry = (const WIN32_FIND_DATA*)&rdir->entry; |
1269 | return entry->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY; |
1270 | #elif defined(PSP) || defined(VITA) |
1271 | const SceIoDirent *entry = (const SceIoDirent*)&rdir->entry; |
1272 | #if defined(PSP) |
1273 | return (entry->d_stat.st_attr & FIO_SO_IFDIR) == FIO_SO_IFDIR; |
1274 | #elif defined(VITA) |
1275 | return SCE_S_ISDIR(entry->d_stat.st_mode); |
1276 | #endif |
1277 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1278 | CellFsDirent *entry = (CellFsDirent*)&rdir->entry; |
1279 | return (entry->d_type == CELL_FS_TYPE_DIRECTORY); |
1280 | #elif defined(ORBIS) |
1281 | const struct dirent *entry = &rdir->entry; |
1282 | if (entry->d_type == DT_DIR) |
1283 | return true; |
1284 | if (!(entry->d_type == DT_UNKNOWN || entry->d_type == DT_LNK)) |
1285 | return false; |
1286 | #else |
1287 | struct stat buf; |
1288 | char path[PATH_MAX_LENGTH]; |
1289 | #if defined(DT_DIR) |
1290 | const struct dirent *entry = (const struct dirent*)rdir->entry; |
1291 | if (entry->d_type == DT_DIR) |
1292 | return true; |
1293 | /* This can happen on certain file systems. */ |
1294 | if (!(entry->d_type == DT_UNKNOWN || entry->d_type == DT_LNK)) |
1295 | return false; |
1296 | #endif |
1297 | /* dirent struct doesn't have d_type, do it the slow way ... */ |
1298 | path[0] = '\0'; |
1299 | fill_pathname_join(path, rdir->orig_path, retro_vfs_dirent_get_name_impl(rdir), sizeof(path)); |
1300 | if (stat(path, &buf) < 0) |
1301 | return false; |
1302 | return S_ISDIR(buf.st_mode); |
1303 | #endif |
1304 | } |
1305 | |
1306 | int retro_vfs_closedir_impl(libretro_vfs_implementation_dir *rdir) |
1307 | { |
1308 | if (!rdir) |
1309 | return -1; |
1310 | |
1311 | #if defined(_WIN32) |
1312 | if (rdir->directory != INVALID_HANDLE_VALUE) |
1313 | FindClose(rdir->directory); |
1314 | #elif defined(VITA) || defined(PSP) |
1315 | sceIoDclose(rdir->directory); |
1316 | #elif defined(__CELLOS_LV2__) && !defined(__PSL1GHT__) |
1317 | rdir->error = cellFsClosedir(rdir->directory); |
1318 | #elif defined(ORBIS) |
1319 | orbisDclose(rdir->directory); |
1320 | #else |
1321 | if (rdir->directory) |
1322 | closedir(rdir->directory); |
1323 | #endif |
1324 | |
1325 | if (rdir->orig_path) |
1326 | free(rdir->orig_path); |
1327 | free(rdir); |
1328 | return 0; |
1329 | } |