| 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> /* string_is_empty */ |
| 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(WIIU) |
| 61 | # include <malloc.h> |
| 62 | # endif |
| 63 | #endif |
| 64 | |
| 65 | #include <fcntl.h> |
| 66 | |
| 67 | /* TODO: Some things are duplicated but I'm really afraid of breaking other platforms by touching this */ |
| 68 | #if defined(VITA) |
| 69 | # include <psp2/io/fcntl.h> |
| 70 | # include <psp2/io/dirent.h> |
| 71 | # include <psp2/io/stat.h> |
| 72 | #elif !defined(_WIN32) |
| 73 | # if defined(PSP) |
| 74 | # include <pspiofilemgr.h> |
| 75 | # endif |
| 76 | # include <sys/types.h> |
| 77 | # include <sys/stat.h> |
| 78 | # include <dirent.h> |
| 79 | # include <unistd.h> |
| 80 | #endif |
| 81 | |
| 82 | #if defined(__QNX__) || defined(PSP) |
| 83 | #include <unistd.h> /* stat() is defined here */ |
| 84 | #endif |
| 85 | |
| 86 | #ifdef __APPLE__ |
| 87 | #include <CoreFoundation/CoreFoundation.h> |
| 88 | #endif |
| 89 | #ifdef __HAIKU__ |
| 90 | #include <kernel/image.h> |
| 91 | #endif |
| 92 | #ifndef __MACH__ |
| 93 | #include <compat/strl.h> |
| 94 | #include <compat/posix_string.h> |
| 95 | #endif |
| 96 | #include <compat/strcasestr.h> |
| 97 | #include <retro_miscellaneous.h> |
| 98 | #include <encodings/utf.h> |
| 99 | |
| 100 | #if defined(_WIN32) |
| 101 | #ifndef _XBOX |
| 102 | #if defined(_MSC_VER) && _MSC_VER <= 1200 |
| 103 | #define INVALID_FILE_ATTRIBUTES ((DWORD)-1) |
| 104 | #endif |
| 105 | #endif |
| 106 | #elif defined(VITA) |
| 107 | #define SCE_ERROR_ERRNO_EEXIST 0x80010011 |
| 108 | #include <psp2/io/fcntl.h> |
| 109 | #include <psp2/io/dirent.h> |
| 110 | #include <psp2/io/stat.h> |
| 111 | #else |
| 112 | #include <sys/types.h> |
| 113 | #include <sys/stat.h> |
| 114 | #include <unistd.h> |
| 115 | #endif |
| 116 | |
| 117 | |
| 118 | #if defined(PSP) |
| 119 | #include <pspkernel.h> |
| 120 | #endif |
| 121 | |
| 122 | #if defined(__PS3__) || defined(__PSL1GHT__) |
| 123 | #define FS_SUCCEEDED 0 |
| 124 | #define FS_TYPE_DIR 1 |
| 125 | #ifdef __PSL1GHT__ |
| 126 | #include <lv2/sysfs.h> |
| 127 | #ifndef O_RDONLY |
| 128 | #define O_RDONLY SYS_O_RDONLY |
| 129 | #endif |
| 130 | #ifndef O_WRONLY |
| 131 | #define O_WRONLY SYS_O_WRONLY |
| 132 | #endif |
| 133 | #ifndef O_CREAT |
| 134 | #define O_CREAT SYS_O_CREAT |
| 135 | #endif |
| 136 | #ifndef O_TRUNC |
| 137 | #define O_TRUNC SYS_O_TRUNC |
| 138 | #endif |
| 139 | #ifndef O_RDWR |
| 140 | #define O_RDWR SYS_O_RDWR |
| 141 | #endif |
| 142 | #else |
| 143 | #include <cell/cell_fs.h> |
| 144 | #ifndef O_RDONLY |
| 145 | #define O_RDONLY CELL_FS_O_RDONLY |
| 146 | #endif |
| 147 | #ifndef O_WRONLY |
| 148 | #define O_WRONLY CELL_FS_O_WRONLY |
| 149 | #endif |
| 150 | #ifndef O_CREAT |
| 151 | #define O_CREAT CELL_FS_O_CREAT |
| 152 | #endif |
| 153 | #ifndef O_TRUNC |
| 154 | #define O_TRUNC CELL_FS_O_TRUNC |
| 155 | #endif |
| 156 | #ifndef O_RDWR |
| 157 | #define O_RDWR CELL_FS_O_RDWR |
| 158 | #endif |
| 159 | #ifndef sysFsStat |
| 160 | #define sysFsStat cellFsStat |
| 161 | #endif |
| 162 | #ifndef sysFSDirent |
| 163 | #define sysFSDirent CellFsDirent |
| 164 | #endif |
| 165 | #ifndef sysFsOpendir |
| 166 | #define sysFsOpendir cellFsOpendir |
| 167 | #endif |
| 168 | #ifndef sysFsReaddir |
| 169 | #define sysFsReaddir cellFsReaddir |
| 170 | #endif |
| 171 | #ifndef sysFSDirent |
| 172 | #define sysFSDirent CellFsDirent |
| 173 | #endif |
| 174 | #ifndef sysFsClosedir |
| 175 | #define sysFsClosedir cellFsClosedir |
| 176 | #endif |
| 177 | #endif |
| 178 | #endif |
| 179 | |
| 180 | #if defined(VITA) |
| 181 | #define FIO_S_ISDIR SCE_S_ISDIR |
| 182 | #endif |
| 183 | |
| 184 | #if defined(__QNX__) || defined(PSP) |
| 185 | #include <unistd.h> /* stat() is defined here */ |
| 186 | #endif |
| 187 | |
| 188 | /* Assume W-functions do not work below Win2K and Xbox platforms */ |
| 189 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX) |
| 190 | |
| 191 | #ifndef LEGACY_WIN32 |
| 192 | #define LEGACY_WIN32 |
| 193 | #endif |
| 194 | |
| 195 | #endif |
| 196 | |
| 197 | #if defined(_WIN32) |
| 198 | #if defined(_MSC_VER) && _MSC_VER >= 1400 |
| 199 | #define ATLEAST_VC2005 |
| 200 | #endif |
| 201 | #endif |
| 202 | |
| 203 | #include <vfs/vfs_implementation.h> |
| 204 | #include <libretro.h> |
| 205 | #if defined(HAVE_MMAP) |
| 206 | #include <memmap.h> |
| 207 | #endif |
| 208 | #include <encodings/utf.h> |
| 209 | #include <compat/fopen_utf8.h> |
| 210 | #include <file/file_path.h> |
| 211 | |
| 212 | #ifdef HAVE_CDROM |
| 213 | #include <vfs/vfs_implementation_cdrom.h> |
| 214 | #endif |
| 215 | |
| 216 | #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) |
| 217 | #ifndef HAVE_64BIT_OFFSETS |
| 218 | #define HAVE_64BIT_OFFSETS |
| 219 | #endif |
| 220 | #endif |
| 221 | |
| 222 | #define RFILE_HINT_UNBUFFERED (1 << 8) |
| 223 | |
| 224 | int64_t retro_vfs_file_seek_internal( |
| 225 | libretro_vfs_implementation_file *stream, |
| 226 | int64_t offset, int whence) |
| 227 | { |
| 228 | if (!stream) |
| 229 | return -1; |
| 230 | |
| 231 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 232 | { |
| 233 | #ifdef HAVE_CDROM |
| 234 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 235 | return retro_vfs_file_seek_cdrom(stream, offset, whence); |
| 236 | #endif |
| 237 | #ifdef ATLEAST_VC2005 |
| 238 | /* VC2005 and up have a special 64-bit fseek */ |
| 239 | return _fseeki64(stream->fp, offset, whence); |
| 240 | #elif defined(HAVE_64BIT_OFFSETS) |
| 241 | return fseeko(stream->fp, (off_t)offset, whence); |
| 242 | #else |
| 243 | return fseek(stream->fp, (long)offset, whence); |
| 244 | #endif |
| 245 | } |
| 246 | #ifdef HAVE_MMAP |
| 247 | /* Need to check stream->mapped because this function is |
| 248 | * called in filestream_open() */ |
| 249 | if (stream->mapped && stream->hints & |
| 250 | RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 251 | { |
| 252 | /* fseek() returns error on under/overflow but |
| 253 | * allows cursor > EOF for |
| 254 | read-only file descriptors. */ |
| 255 | switch (whence) |
| 256 | { |
| 257 | case SEEK_SET: |
| 258 | if (offset < 0) |
| 259 | return -1; |
| 260 | |
| 261 | stream->mappos = offset; |
| 262 | break; |
| 263 | |
| 264 | case SEEK_CUR: |
| 265 | if ( (offset < 0 && stream->mappos + offset > stream->mappos) || |
| 266 | (offset > 0 && stream->mappos + offset < stream->mappos)) |
| 267 | return -1; |
| 268 | |
| 269 | stream->mappos += offset; |
| 270 | break; |
| 271 | |
| 272 | case SEEK_END: |
| 273 | if (stream->mapsize + offset < stream->mapsize) |
| 274 | return -1; |
| 275 | |
| 276 | stream->mappos = stream->mapsize + offset; |
| 277 | break; |
| 278 | } |
| 279 | return stream->mappos; |
| 280 | } |
| 281 | #endif |
| 282 | |
| 283 | if (lseek(stream->fd, (off_t)offset, whence) < 0) |
| 284 | return -1; |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * retro_vfs_file_open_impl: |
| 291 | * @path : path to file |
| 292 | * @mode : file mode to use when opening (read/write) |
| 293 | * @hints : |
| 294 | * |
| 295 | * Opens a file for reading or writing, depending on the requested mode. |
| 296 | * Returns a pointer to an RFILE if opened successfully, otherwise NULL. |
| 297 | **/ |
| 298 | |
| 299 | libretro_vfs_implementation_file *retro_vfs_file_open_impl( |
| 300 | const char *path, unsigned mode, unsigned hints) |
| 301 | { |
| 302 | int flags = 0; |
| 303 | const char *mode_str = NULL; |
| 304 | libretro_vfs_implementation_file *stream = |
| 305 | (libretro_vfs_implementation_file*) |
| 306 | malloc(sizeof(*stream)); |
| 307 | |
| 308 | if (!stream) |
| 309 | return NULL; |
| 310 | |
| 311 | stream->fd = 0; |
| 312 | stream->hints = hints; |
| 313 | stream->size = 0; |
| 314 | stream->buf = NULL; |
| 315 | stream->fp = NULL; |
| 316 | #ifdef _WIN32 |
| 317 | stream->fh = 0; |
| 318 | #endif |
| 319 | stream->orig_path = NULL; |
| 320 | stream->mappos = 0; |
| 321 | stream->mapsize = 0; |
| 322 | stream->mapped = NULL; |
| 323 | stream->scheme = VFS_SCHEME_NONE; |
| 324 | |
| 325 | #ifdef VFS_FRONTEND |
| 326 | if ( path |
| 327 | && path[0] == 'v' |
| 328 | && path[1] == 'f' |
| 329 | && path[2] == 's' |
| 330 | && path[3] == 'o' |
| 331 | && path[4] == 'n' |
| 332 | && path[5] == 'l' |
| 333 | && path[6] == 'y' |
| 334 | && path[7] == ':' |
| 335 | && path[8] == '/' |
| 336 | && path[9] == '/') |
| 337 | path += sizeof("vfsonly://")-1; |
| 338 | #endif |
| 339 | |
| 340 | #ifdef HAVE_CDROM |
| 341 | stream->cdrom.cue_buf = NULL; |
| 342 | stream->cdrom.cue_len = 0; |
| 343 | stream->cdrom.byte_pos = 0; |
| 344 | stream->cdrom.drive = 0; |
| 345 | stream->cdrom.cur_min = 0; |
| 346 | stream->cdrom.cur_sec = 0; |
| 347 | stream->cdrom.cur_frame = 0; |
| 348 | stream->cdrom.cur_track = 0; |
| 349 | stream->cdrom.cur_lba = 0; |
| 350 | stream->cdrom.last_frame_lba = 0; |
| 351 | stream->cdrom.last_frame[0] = '\0'; |
| 352 | stream->cdrom.last_frame_valid = false; |
| 353 | |
| 354 | if ( path |
| 355 | && path[0] == 'c' |
| 356 | && path[1] == 'd' |
| 357 | && path[2] == 'r' |
| 358 | && path[3] == 'o' |
| 359 | && path[4] == 'm' |
| 360 | && path[5] == ':' |
| 361 | && path[6] == '/' |
| 362 | && path[7] == '/' |
| 363 | && path[8] != '\0') |
| 364 | { |
| 365 | path += sizeof("cdrom://")-1; |
| 366 | stream->scheme = VFS_SCHEME_CDROM; |
| 367 | } |
| 368 | #endif |
| 369 | |
| 370 | stream->orig_path = strdup(path); |
| 371 | |
| 372 | #ifdef HAVE_MMAP |
| 373 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS && mode == RETRO_VFS_FILE_ACCESS_READ) |
| 374 | stream->hints |= RFILE_HINT_UNBUFFERED; |
| 375 | else |
| 376 | #endif |
| 377 | stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; |
| 378 | |
| 379 | switch (mode) |
| 380 | { |
| 381 | case RETRO_VFS_FILE_ACCESS_READ: |
| 382 | mode_str = "rb"; |
| 383 | |
| 384 | flags = O_RDONLY; |
| 385 | #ifdef _WIN32 |
| 386 | flags |= O_BINARY; |
| 387 | #endif |
| 388 | break; |
| 389 | |
| 390 | case RETRO_VFS_FILE_ACCESS_WRITE: |
| 391 | mode_str = "wb"; |
| 392 | |
| 393 | flags = O_WRONLY | O_CREAT | O_TRUNC; |
| 394 | #if !defined(_WIN32) |
| 395 | flags |= S_IRUSR | S_IWUSR; |
| 396 | #else |
| 397 | flags |= O_BINARY; |
| 398 | #endif |
| 399 | break; |
| 400 | |
| 401 | case RETRO_VFS_FILE_ACCESS_READ_WRITE: |
| 402 | mode_str = "w+b"; |
| 403 | flags = O_RDWR | O_CREAT | O_TRUNC; |
| 404 | #if !defined(_WIN32) |
| 405 | flags |= S_IRUSR | S_IWUSR; |
| 406 | #else |
| 407 | flags |= O_BINARY; |
| 408 | #endif |
| 409 | break; |
| 410 | |
| 411 | case RETRO_VFS_FILE_ACCESS_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: |
| 412 | case RETRO_VFS_FILE_ACCESS_READ_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: |
| 413 | mode_str = "r+b"; |
| 414 | |
| 415 | flags = O_RDWR; |
| 416 | #if !defined(_WIN32) |
| 417 | flags |= S_IRUSR | S_IWUSR; |
| 418 | #else |
| 419 | flags |= O_BINARY; |
| 420 | #endif |
| 421 | break; |
| 422 | |
| 423 | default: |
| 424 | goto error; |
| 425 | } |
| 426 | |
| 427 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 428 | { |
| 429 | FILE *fp; |
| 430 | #ifdef HAVE_CDROM |
| 431 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 432 | { |
| 433 | retro_vfs_file_open_cdrom(stream, path, mode, hints); |
| 434 | #if defined(_WIN32) && !defined(_XBOX) |
| 435 | if (!stream->fh) |
| 436 | goto error; |
| 437 | #else |
| 438 | if (!stream->fp) |
| 439 | goto error; |
| 440 | #endif |
| 441 | } |
| 442 | else |
| 443 | #endif |
| 444 | { |
| 445 | if (!(fp = (FILE*)fopen_utf8(path, mode_str))) |
| 446 | goto error; |
| 447 | |
| 448 | stream->fp = fp; |
| 449 | } |
| 450 | |
| 451 | /* Regarding setvbuf: |
| 452 | * |
| 453 | * https://www.freebsd.org/cgi/man.cgi?query=setvbuf&apropos=0&sektion=0&manpath=FreeBSD+11.1-RELEASE&arch=default&format=html |
| 454 | * |
| 455 | * If the size argument is not zero but buf is NULL, |
| 456 | * a buffer of the given size will be allocated immediately, and |
| 457 | * released on close. This is an extension to ANSI C. |
| 458 | * |
| 459 | * Since C89 does not support specifying a NULL buffer |
| 460 | * with a non-zero size, we create and track our own buffer for it. |
| 461 | */ |
| 462 | /* TODO: this is only useful for a few platforms, |
| 463 | * find which and add ifdef */ |
| 464 | #if defined(_3DS) |
| 465 | if (stream->scheme != VFS_SCHEME_CDROM) |
| 466 | { |
| 467 | stream->buf = (char*)calloc(1, 0x10000); |
| 468 | if (stream->fp) |
| 469 | setvbuf(stream->fp, stream->buf, _IOFBF, 0x10000); |
| 470 | } |
| 471 | #elif defined(WIIU) |
| 472 | if (stream->scheme != VFS_SCHEME_CDROM) |
| 473 | { |
| 474 | const int bufsize = 128 * 1024; |
| 475 | stream->buf = (char*)memalign(0x40, bufsize); |
| 476 | if (stream->fp) |
| 477 | setvbuf(stream->fp, stream->buf, _IOFBF, bufsize); |
| 478 | stream->buf = (char*)calloc(1, 0x4000); |
| 479 | if (stream->fp) |
| 480 | setvbuf(stream->fp, stream->buf, _IOFBF, 0x4000); |
| 481 | } |
| 482 | #endif |
| 483 | } |
| 484 | else |
| 485 | { |
| 486 | #if defined(_WIN32) && !defined(_XBOX) |
| 487 | #if defined(LEGACY_WIN32) |
| 488 | char *path_local = utf8_to_local_string_alloc(path); |
| 489 | stream->fd = open(path_local, flags, 0); |
| 490 | if (path_local) |
| 491 | free(path_local); |
| 492 | #else |
| 493 | wchar_t * path_wide = utf8_to_utf16_string_alloc(path); |
| 494 | stream->fd = _wopen(path_wide, flags, 0); |
| 495 | if (path_wide) |
| 496 | free(path_wide); |
| 497 | #endif |
| 498 | #else |
| 499 | stream->fd = open(path, flags, 0); |
| 500 | #endif |
| 501 | |
| 502 | if (stream->fd == -1) |
| 503 | goto error; |
| 504 | |
| 505 | #ifdef HAVE_MMAP |
| 506 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 507 | { |
| 508 | stream->mappos = 0; |
| 509 | stream->mapped = NULL; |
| 510 | stream->mapsize = retro_vfs_file_seek_internal(stream, 0, SEEK_END); |
| 511 | |
| 512 | if (stream->mapsize == (uint64_t)-1) |
| 513 | goto error; |
| 514 | |
| 515 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
| 516 | |
| 517 | if ((stream->mapped = (uint8_t*)mmap((void*)0, |
| 518 | stream->mapsize, PROT_READ, MAP_SHARED, stream->fd, 0)) == MAP_FAILED) |
| 519 | stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; |
| 520 | } |
| 521 | #endif |
| 522 | } |
| 523 | #ifdef HAVE_CDROM |
| 524 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 525 | { |
| 526 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET); |
| 527 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_END); |
| 528 | |
| 529 | stream->size = retro_vfs_file_tell_impl(stream); |
| 530 | |
| 531 | retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET); |
| 532 | } |
| 533 | else |
| 534 | #endif |
| 535 | { |
| 536 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
| 537 | retro_vfs_file_seek_internal(stream, 0, SEEK_END); |
| 538 | |
| 539 | stream->size = retro_vfs_file_tell_impl(stream); |
| 540 | |
| 541 | retro_vfs_file_seek_internal(stream, 0, SEEK_SET); |
| 542 | } |
| 543 | return stream; |
| 544 | |
| 545 | error: |
| 546 | retro_vfs_file_close_impl(stream); |
| 547 | return NULL; |
| 548 | } |
| 549 | |
| 550 | int retro_vfs_file_close_impl(libretro_vfs_implementation_file *stream) |
| 551 | { |
| 552 | if (!stream) |
| 553 | return -1; |
| 554 | |
| 555 | #ifdef HAVE_CDROM |
| 556 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 557 | { |
| 558 | retro_vfs_file_close_cdrom(stream); |
| 559 | goto end; |
| 560 | } |
| 561 | #endif |
| 562 | |
| 563 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 564 | { |
| 565 | if (stream->fp) |
| 566 | fclose(stream->fp); |
| 567 | } |
| 568 | else |
| 569 | { |
| 570 | #ifdef HAVE_MMAP |
| 571 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 572 | munmap(stream->mapped, stream->mapsize); |
| 573 | #endif |
| 574 | } |
| 575 | |
| 576 | if (stream->fd > 0) |
| 577 | close(stream->fd); |
| 578 | #ifdef HAVE_CDROM |
| 579 | end: |
| 580 | if (stream->cdrom.cue_buf) |
| 581 | free(stream->cdrom.cue_buf); |
| 582 | #endif |
| 583 | if (stream->buf) |
| 584 | free(stream->buf); |
| 585 | |
| 586 | if (stream->orig_path) |
| 587 | free(stream->orig_path); |
| 588 | |
| 589 | free(stream); |
| 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | int retro_vfs_file_error_impl(libretro_vfs_implementation_file *stream) |
| 595 | { |
| 596 | #ifdef HAVE_CDROM |
| 597 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 598 | return retro_vfs_file_error_cdrom(stream); |
| 599 | #endif |
| 600 | return ferror(stream->fp); |
| 601 | } |
| 602 | |
| 603 | int64_t retro_vfs_file_size_impl(libretro_vfs_implementation_file *stream) |
| 604 | { |
| 605 | if (stream) |
| 606 | return stream->size; |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | int64_t retro_vfs_file_truncate_impl(libretro_vfs_implementation_file *stream, int64_t length) |
| 611 | { |
| 612 | #ifdef _WIN32 |
| 613 | if (stream && _chsize(_fileno(stream->fp), length) == 0) |
| 614 | { |
| 615 | stream->size = length; |
| 616 | return 0; |
| 617 | } |
| 618 | #elif !defined(VITA) && !defined(PSP) && !defined(PS2) && !defined(ORBIS) && (!defined(SWITCH) || defined(HAVE_LIBNX)) |
| 619 | if (stream && ftruncate(fileno(stream->fp), (off_t)length) == 0) |
| 620 | { |
| 621 | stream->size = length; |
| 622 | return 0; |
| 623 | } |
| 624 | #endif |
| 625 | return -1; |
| 626 | } |
| 627 | |
| 628 | int64_t retro_vfs_file_tell_impl(libretro_vfs_implementation_file *stream) |
| 629 | { |
| 630 | if (!stream) |
| 631 | return -1; |
| 632 | |
| 633 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 634 | { |
| 635 | #ifdef HAVE_CDROM |
| 636 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 637 | return retro_vfs_file_tell_cdrom(stream); |
| 638 | #endif |
| 639 | #ifdef ATLEAST_VC2005 |
| 640 | /* VC2005 and up have a special 64-bit ftell */ |
| 641 | return _ftelli64(stream->fp); |
| 642 | #elif defined(HAVE_64BIT_OFFSETS) |
| 643 | return ftello(stream->fp); |
| 644 | #else |
| 645 | return ftell(stream->fp); |
| 646 | #endif |
| 647 | } |
| 648 | #ifdef HAVE_MMAP |
| 649 | /* Need to check stream->mapped because this function |
| 650 | * is called in filestream_open() */ |
| 651 | if (stream->mapped && stream->hints & |
| 652 | RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 653 | return stream->mappos; |
| 654 | #endif |
| 655 | if (lseek(stream->fd, 0, SEEK_CUR) < 0) |
| 656 | return -1; |
| 657 | |
| 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | int64_t retro_vfs_file_seek_impl(libretro_vfs_implementation_file *stream, |
| 662 | int64_t offset, int seek_position) |
| 663 | { |
| 664 | return retro_vfs_file_seek_internal(stream, offset, seek_position); |
| 665 | } |
| 666 | |
| 667 | int64_t retro_vfs_file_read_impl(libretro_vfs_implementation_file *stream, |
| 668 | void *s, uint64_t len) |
| 669 | { |
| 670 | if (!stream || !s) |
| 671 | return -1; |
| 672 | |
| 673 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 674 | { |
| 675 | #ifdef HAVE_CDROM |
| 676 | if (stream->scheme == VFS_SCHEME_CDROM) |
| 677 | return retro_vfs_file_read_cdrom(stream, s, len); |
| 678 | #endif |
| 679 | return fread(s, 1, (size_t)len, stream->fp); |
| 680 | } |
| 681 | #ifdef HAVE_MMAP |
| 682 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 683 | { |
| 684 | if (stream->mappos > stream->mapsize) |
| 685 | return -1; |
| 686 | |
| 687 | if (stream->mappos + len > stream->mapsize) |
| 688 | len = stream->mapsize - stream->mappos; |
| 689 | |
| 690 | memcpy(s, &stream->mapped[stream->mappos], len); |
| 691 | stream->mappos += len; |
| 692 | |
| 693 | return len; |
| 694 | } |
| 695 | #endif |
| 696 | |
| 697 | return read(stream->fd, s, (size_t)len); |
| 698 | } |
| 699 | |
| 700 | int64_t retro_vfs_file_write_impl(libretro_vfs_implementation_file *stream, const void *s, uint64_t len) |
| 701 | { |
| 702 | int64_t pos = 0; |
| 703 | ssize_t result = -1; |
| 704 | |
| 705 | if (!stream) |
| 706 | return -1; |
| 707 | |
| 708 | if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) |
| 709 | { |
| 710 | pos = retro_vfs_file_tell_impl(stream); |
| 711 | result = fwrite(s, 1, (size_t)len, stream->fp); |
| 712 | |
| 713 | if (result != -1 && pos + result > stream->size) |
| 714 | stream->size = pos + result; |
| 715 | |
| 716 | return result; |
| 717 | } |
| 718 | #ifdef HAVE_MMAP |
| 719 | if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) |
| 720 | return -1; |
| 721 | #endif |
| 722 | |
| 723 | pos = retro_vfs_file_tell_impl(stream); |
| 724 | result = write(stream->fd, s, (size_t)len); |
| 725 | |
| 726 | if (result != -1 && pos + result > stream->size) |
| 727 | stream->size = pos + result; |
| 728 | |
| 729 | return result; |
| 730 | } |
| 731 | |
| 732 | int retro_vfs_file_flush_impl(libretro_vfs_implementation_file *stream) |
| 733 | { |
| 734 | if (stream && fflush(stream->fp) == 0) |
| 735 | return 0; |
| 736 | return -1; |
| 737 | } |
| 738 | |
| 739 | int retro_vfs_file_remove_impl(const char *path) |
| 740 | { |
| 741 | #if defined(_WIN32) && !defined(_XBOX) |
| 742 | /* Win32 (no Xbox) */ |
| 743 | |
| 744 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
| 745 | char *path_local = NULL; |
| 746 | #else |
| 747 | wchar_t *path_wide = NULL; |
| 748 | #endif |
| 749 | if (!path || !*path) |
| 750 | return -1; |
| 751 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
| 752 | if ((path_local = utf8_to_local_string_alloc(path))) |
| 753 | { |
| 754 | int ret = remove(path_local); |
| 755 | free(path_local); |
| 756 | |
| 757 | if (ret == 0) |
| 758 | return 0; |
| 759 | } |
| 760 | #else |
| 761 | if ((path_wide = utf8_to_utf16_string_alloc(path))) |
| 762 | { |
| 763 | int ret = _wremove(path_wide); |
| 764 | free(path_wide); |
| 765 | |
| 766 | if (ret == 0) |
| 767 | return 0; |
| 768 | } |
| 769 | #endif |
| 770 | #else |
| 771 | if (remove(path) == 0) |
| 772 | return 0; |
| 773 | #endif |
| 774 | return -1; |
| 775 | } |
| 776 | |
| 777 | int retro_vfs_file_rename_impl(const char *old_path, const char *new_path) |
| 778 | { |
| 779 | #if defined(_WIN32) && !defined(_XBOX) |
| 780 | /* Win32 (no Xbox) */ |
| 781 | int ret = -1; |
| 782 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
| 783 | char *old_path_local = NULL; |
| 784 | #else |
| 785 | wchar_t *old_path_wide = NULL; |
| 786 | #endif |
| 787 | |
| 788 | if (!old_path || !*old_path || !new_path || !*new_path) |
| 789 | return -1; |
| 790 | |
| 791 | #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 |
| 792 | old_path_local = utf8_to_local_string_alloc(old_path); |
| 793 | |
| 794 | if (old_path_local) |
| 795 | { |
| 796 | char *new_path_local = utf8_to_local_string_alloc(new_path); |
| 797 | |
| 798 | if (new_path_local) |
| 799 | { |
| 800 | if (rename(old_path_local, new_path_local) == 0) |
| 801 | ret = 0; |
| 802 | free(new_path_local); |
| 803 | } |
| 804 | |
| 805 | free(old_path_local); |
| 806 | } |
| 807 | #else |
| 808 | old_path_wide = utf8_to_utf16_string_alloc(old_path); |
| 809 | |
| 810 | if (old_path_wide) |
| 811 | { |
| 812 | wchar_t *new_path_wide = utf8_to_utf16_string_alloc(new_path); |
| 813 | |
| 814 | if (new_path_wide) |
| 815 | { |
| 816 | if (_wrename(old_path_wide, new_path_wide) == 0) |
| 817 | ret = 0; |
| 818 | free(new_path_wide); |
| 819 | } |
| 820 | |
| 821 | free(old_path_wide); |
| 822 | } |
| 823 | #endif |
| 824 | return ret; |
| 825 | |
| 826 | #else |
| 827 | /* Every other platform */ |
| 828 | if (!old_path || !*old_path || !new_path || !*new_path) |
| 829 | return -1; |
| 830 | return rename(old_path, new_path) == 0 ? 0 : -1; |
| 831 | #endif |
| 832 | } |
| 833 | |
| 834 | const char *retro_vfs_file_get_path_impl( |
| 835 | libretro_vfs_implementation_file *stream) |
| 836 | { |
| 837 | /* should never happen, do something noisy so caller can be fixed */ |
| 838 | if (!stream) |
| 839 | abort(); |
| 840 | return stream->orig_path; |
| 841 | } |
| 842 | |
| 843 | int retro_vfs_stat_impl(const char *path, int32_t *size) |
| 844 | { |
| 845 | bool is_dir = false; |
| 846 | bool is_character_special = false; |
| 847 | #if defined(VITA) |
| 848 | /* Vita / PSP */ |
| 849 | SceIoStat buf; |
| 850 | int dir_ret; |
| 851 | char *tmp = NULL; |
| 852 | size_t len = 0; |
| 853 | |
| 854 | if (!path || !*path) |
| 855 | return 0; |
| 856 | |
| 857 | tmp = strdup(path); |
| 858 | len = strlen(tmp); |
| 859 | if (tmp[len-1] == '/') |
| 860 | tmp[len-1] = '\0'; |
| 861 | |
| 862 | dir_ret = sceIoGetstat(tmp, &buf); |
| 863 | free(tmp); |
| 864 | if (dir_ret < 0) |
| 865 | return 0; |
| 866 | |
| 867 | if (size) |
| 868 | *size = (int32_t)buf.st_size; |
| 869 | |
| 870 | is_dir = FIO_S_ISDIR(buf.st_mode); |
| 871 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 872 | /* Lowlevel Lv2 */ |
| 873 | sysFSStat buf; |
| 874 | |
| 875 | if (!path || !*path) |
| 876 | return 0; |
| 877 | if (sysFsStat(path, &buf) < 0) |
| 878 | return 0; |
| 879 | |
| 880 | if (size) |
| 881 | *size = (int32_t)buf.st_size; |
| 882 | |
| 883 | is_dir = ((buf.st_mode & S_IFMT) == S_IFDIR); |
| 884 | #elif defined(_WIN32) |
| 885 | /* Windows */ |
| 886 | DWORD file_info; |
| 887 | struct _stat buf; |
| 888 | #if defined(LEGACY_WIN32) |
| 889 | char *path_local = NULL; |
| 890 | #else |
| 891 | wchar_t *path_wide = NULL; |
| 892 | #endif |
| 893 | |
| 894 | if (!path || !*path) |
| 895 | return 0; |
| 896 | |
| 897 | #if defined(LEGACY_WIN32) |
| 898 | path_local = utf8_to_local_string_alloc(path); |
| 899 | file_info = GetFileAttributes(path_local); |
| 900 | |
| 901 | if (!string_is_empty(path_local)) |
| 902 | _stat(path_local, &buf); |
| 903 | |
| 904 | if (path_local) |
| 905 | free(path_local); |
| 906 | #else |
| 907 | path_wide = utf8_to_utf16_string_alloc(path); |
| 908 | file_info = GetFileAttributesW(path_wide); |
| 909 | |
| 910 | _wstat(path_wide, &buf); |
| 911 | |
| 912 | if (path_wide) |
| 913 | free(path_wide); |
| 914 | #endif |
| 915 | |
| 916 | if (file_info == INVALID_FILE_ATTRIBUTES) |
| 917 | return 0; |
| 918 | |
| 919 | if (size) |
| 920 | *size = (int32_t)buf.st_size; |
| 921 | |
| 922 | is_dir = (file_info & FILE_ATTRIBUTE_DIRECTORY); |
| 923 | |
| 924 | #elif defined(GEKKO) |
| 925 | /* On GEKKO platforms, paths cannot have |
| 926 | * trailing slashes - we must therefore |
| 927 | * remove them */ |
| 928 | char *path_buf = NULL; |
| 929 | int stat_ret = -1; |
| 930 | struct stat stat_buf; |
| 931 | size_t len; |
| 932 | |
| 933 | if (string_is_empty(path)) |
| 934 | return 0; |
| 935 | |
| 936 | if (!(path_buf = strdup(path))) |
| 937 | return 0; |
| 938 | |
| 939 | if ((len = strlen(path_buf)) > 0) |
| 940 | if (path_buf[len - 1] == '/') |
| 941 | path_buf[len - 1] = '\0'; |
| 942 | |
| 943 | stat_ret = stat(path_buf, &stat_buf); |
| 944 | free(path_buf); |
| 945 | |
| 946 | if (stat_ret < 0) |
| 947 | return 0; |
| 948 | |
| 949 | if (size) |
| 950 | *size = (int32_t)stat_buf.st_size; |
| 951 | |
| 952 | is_dir = S_ISDIR(stat_buf.st_mode); |
| 953 | is_character_special = S_ISCHR(stat_buf.st_mode); |
| 954 | |
| 955 | #else |
| 956 | /* Every other platform */ |
| 957 | struct stat buf; |
| 958 | |
| 959 | if (!path || !*path) |
| 960 | return 0; |
| 961 | if (stat(path, &buf) < 0) |
| 962 | return 0; |
| 963 | |
| 964 | if (size) |
| 965 | *size = (int32_t)buf.st_size; |
| 966 | |
| 967 | is_dir = S_ISDIR(buf.st_mode); |
| 968 | is_character_special = S_ISCHR(buf.st_mode); |
| 969 | #endif |
| 970 | return RETRO_VFS_STAT_IS_VALID | (is_dir ? RETRO_VFS_STAT_IS_DIRECTORY : 0) | (is_character_special ? RETRO_VFS_STAT_IS_CHARACTER_SPECIAL : 0); |
| 971 | } |
| 972 | |
| 973 | #if defined(VITA) |
| 974 | #define path_mkdir_error(ret) (((ret) == SCE_ERROR_ERRNO_EEXIST)) |
| 975 | #elif defined(PSP) || defined(PS2) || defined(_3DS) || defined(WIIU) || defined(SWITCH) |
| 976 | #define path_mkdir_error(ret) ((ret) == -1) |
| 977 | #else |
| 978 | #define path_mkdir_error(ret) ((ret) < 0 && errno == EEXIST) |
| 979 | #endif |
| 980 | |
| 981 | int retro_vfs_mkdir_impl(const char *dir) |
| 982 | { |
| 983 | #if defined(_WIN32) |
| 984 | #ifdef LEGACY_WIN32 |
| 985 | int ret = _mkdir(dir); |
| 986 | #else |
| 987 | wchar_t *dir_w = utf8_to_utf16_string_alloc(dir); |
| 988 | int ret = -1; |
| 989 | |
| 990 | if (dir_w) |
| 991 | { |
| 992 | ret = _wmkdir(dir_w); |
| 993 | free(dir_w); |
| 994 | } |
| 995 | #endif |
| 996 | #elif defined(IOS) |
| 997 | int ret = mkdir(dir, 0755); |
| 998 | #elif defined(VITA) |
| 999 | int ret = sceIoMkdir(dir, 0777); |
| 1000 | #elif defined(__QNX__) |
| 1001 | int ret = mkdir(dir, 0777); |
| 1002 | #elif defined(GEKKO) || defined(WIIU) |
| 1003 | /* On GEKKO platforms, mkdir() fails if |
| 1004 | * the path has a trailing slash. We must |
| 1005 | * therefore remove it. */ |
| 1006 | int ret = -1; |
| 1007 | if (!string_is_empty(dir)) |
| 1008 | { |
| 1009 | char *dir_buf = strdup(dir); |
| 1010 | |
| 1011 | if (dir_buf) |
| 1012 | { |
| 1013 | size_t len = strlen(dir_buf); |
| 1014 | |
| 1015 | if (len > 0) |
| 1016 | if (dir_buf[len - 1] == '/') |
| 1017 | dir_buf[len - 1] = '\0'; |
| 1018 | |
| 1019 | ret = mkdir(dir_buf, 0750); |
| 1020 | |
| 1021 | free(dir_buf); |
| 1022 | } |
| 1023 | } |
| 1024 | #else |
| 1025 | int ret = mkdir(dir, 0750); |
| 1026 | #endif |
| 1027 | |
| 1028 | if (path_mkdir_error(ret)) |
| 1029 | return -2; |
| 1030 | return ret < 0 ? -1 : 0; |
| 1031 | } |
| 1032 | |
| 1033 | #ifdef VFS_FRONTEND |
| 1034 | struct retro_vfs_dir_handle |
| 1035 | #else |
| 1036 | struct libretro_vfs_implementation_dir |
| 1037 | #endif |
| 1038 | { |
| 1039 | char* orig_path; |
| 1040 | #if defined(_WIN32) |
| 1041 | #if defined(LEGACY_WIN32) |
| 1042 | WIN32_FIND_DATA entry; |
| 1043 | #else |
| 1044 | WIN32_FIND_DATAW entry; |
| 1045 | #endif |
| 1046 | HANDLE directory; |
| 1047 | bool next; |
| 1048 | char path[PATH_MAX_LENGTH]; |
| 1049 | #elif defined(VITA) |
| 1050 | SceUID directory; |
| 1051 | SceIoDirent entry; |
| 1052 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1053 | int error; |
| 1054 | int directory; |
| 1055 | sysFSDirent entry; |
| 1056 | #else |
| 1057 | DIR *directory; |
| 1058 | const struct dirent *entry; |
| 1059 | #endif |
| 1060 | }; |
| 1061 | |
| 1062 | static bool dirent_check_error(libretro_vfs_implementation_dir *rdir) |
| 1063 | { |
| 1064 | #if defined(_WIN32) |
| 1065 | return (rdir->directory == INVALID_HANDLE_VALUE); |
| 1066 | #elif defined(VITA) || defined(ORBIS) |
| 1067 | return (rdir->directory < 0); |
| 1068 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1069 | return (rdir->error != FS_SUCCEEDED); |
| 1070 | #else |
| 1071 | return !(rdir->directory); |
| 1072 | #endif |
| 1073 | } |
| 1074 | |
| 1075 | libretro_vfs_implementation_dir *retro_vfs_opendir_impl( |
| 1076 | const char *name, bool include_hidden) |
| 1077 | { |
| 1078 | #if defined(_WIN32) |
| 1079 | char path_buf[1024]; |
| 1080 | size_t copied = 0; |
| 1081 | #if defined(LEGACY_WIN32) |
| 1082 | char *path_local = NULL; |
| 1083 | #else |
| 1084 | wchar_t *path_wide = NULL; |
| 1085 | #endif |
| 1086 | #endif |
| 1087 | libretro_vfs_implementation_dir *rdir; |
| 1088 | |
| 1089 | /* Reject NULL or empty string paths*/ |
| 1090 | if (!name || (*name == 0)) |
| 1091 | return NULL; |
| 1092 | |
| 1093 | /*Allocate RDIR struct. Tidied later with retro_closedir*/ |
| 1094 | if (!(rdir = (libretro_vfs_implementation_dir*) |
| 1095 | calloc(1, sizeof(*rdir)))) |
| 1096 | return NULL; |
| 1097 | |
| 1098 | rdir->orig_path = strdup(name); |
| 1099 | |
| 1100 | #if defined(_WIN32) |
| 1101 | copied = strlcpy(path_buf, name, sizeof(path_buf)); |
| 1102 | |
| 1103 | /* Non-NT platforms don't like extra slashes in the path */ |
| 1104 | if (path_buf[copied - 1] != '\\') |
| 1105 | path_buf [copied++] = '\\'; |
| 1106 | |
| 1107 | path_buf[copied ] = '*'; |
| 1108 | path_buf[copied+1] = '\0'; |
| 1109 | |
| 1110 | #if defined(LEGACY_WIN32) |
| 1111 | path_local = utf8_to_local_string_alloc(path_buf); |
| 1112 | rdir->directory = FindFirstFile(path_local, &rdir->entry); |
| 1113 | |
| 1114 | if (path_local) |
| 1115 | free(path_local); |
| 1116 | #else |
| 1117 | path_wide = utf8_to_utf16_string_alloc(path_buf); |
| 1118 | rdir->directory = FindFirstFileW(path_wide, &rdir->entry); |
| 1119 | |
| 1120 | if (path_wide) |
| 1121 | free(path_wide); |
| 1122 | #endif |
| 1123 | |
| 1124 | #elif defined(VITA) |
| 1125 | rdir->directory = sceIoDopen(name); |
| 1126 | #elif defined(_3DS) |
| 1127 | rdir->directory = !string_is_empty(name) ? opendir(name) : NULL; |
| 1128 | rdir->entry = NULL; |
| 1129 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1130 | rdir->error = sysFsOpendir(name, &rdir->directory); |
| 1131 | #else |
| 1132 | rdir->directory = opendir(name); |
| 1133 | rdir->entry = NULL; |
| 1134 | #endif |
| 1135 | |
| 1136 | #ifdef _WIN32 |
| 1137 | if (include_hidden) |
| 1138 | rdir->entry.dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN; |
| 1139 | else |
| 1140 | rdir->entry.dwFileAttributes &= ~FILE_ATTRIBUTE_HIDDEN; |
| 1141 | #endif |
| 1142 | |
| 1143 | if (rdir->directory && !dirent_check_error(rdir)) |
| 1144 | return rdir; |
| 1145 | |
| 1146 | retro_vfs_closedir_impl(rdir); |
| 1147 | return NULL; |
| 1148 | } |
| 1149 | |
| 1150 | bool retro_vfs_readdir_impl(libretro_vfs_implementation_dir *rdir) |
| 1151 | { |
| 1152 | #if defined(_WIN32) |
| 1153 | if (rdir->next) |
| 1154 | #if defined(LEGACY_WIN32) |
| 1155 | return (FindNextFile(rdir->directory, &rdir->entry) != 0); |
| 1156 | #else |
| 1157 | return (FindNextFileW(rdir->directory, &rdir->entry) != 0); |
| 1158 | #endif |
| 1159 | |
| 1160 | rdir->next = true; |
| 1161 | return (rdir->directory != INVALID_HANDLE_VALUE); |
| 1162 | #elif defined(VITA) |
| 1163 | return (sceIoDread(rdir->directory, &rdir->entry) > 0); |
| 1164 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1165 | uint64_t nread; |
| 1166 | rdir->error = sysFsReaddir(rdir->directory, &rdir->entry, &nread); |
| 1167 | return (nread != 0); |
| 1168 | #else |
| 1169 | return ((rdir->entry = readdir(rdir->directory)) != NULL); |
| 1170 | #endif |
| 1171 | } |
| 1172 | |
| 1173 | const char *retro_vfs_dirent_get_name_impl(libretro_vfs_implementation_dir *rdir) |
| 1174 | { |
| 1175 | #if defined(_WIN32) |
| 1176 | #if defined(LEGACY_WIN32) |
| 1177 | char *name = local_to_utf8_string_alloc(rdir->entry.cFileName); |
| 1178 | #else |
| 1179 | char *name = utf16_to_utf8_string_alloc(rdir->entry.cFileName); |
| 1180 | #endif |
| 1181 | memset(rdir->entry.cFileName, 0, sizeof(rdir->entry.cFileName)); |
| 1182 | strlcpy((char*)rdir->entry.cFileName, name, sizeof(rdir->entry.cFileName)); |
| 1183 | if (name) |
| 1184 | free(name); |
| 1185 | return (char*)rdir->entry.cFileName; |
| 1186 | #elif defined(VITA) || defined(__PSL1GHT__) || defined(__PS3__) |
| 1187 | return rdir->entry.d_name; |
| 1188 | #else |
| 1189 | if (!rdir || !rdir->entry) |
| 1190 | return NULL; |
| 1191 | return rdir->entry->d_name; |
| 1192 | #endif |
| 1193 | } |
| 1194 | |
| 1195 | bool retro_vfs_dirent_is_dir_impl(libretro_vfs_implementation_dir *rdir) |
| 1196 | { |
| 1197 | #if defined(_WIN32) |
| 1198 | const WIN32_FIND_DATA *entry = (const WIN32_FIND_DATA*)&rdir->entry; |
| 1199 | return entry->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY; |
| 1200 | #elif defined(VITA) |
| 1201 | const SceIoDirent *entry = (const SceIoDirent*)&rdir->entry; |
| 1202 | return SCE_S_ISDIR(entry->d_stat.st_mode); |
| 1203 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1204 | sysFSDirent *entry = (sysFSDirent*)&rdir->entry; |
| 1205 | return (entry->d_type == FS_TYPE_DIR); |
| 1206 | #else |
| 1207 | struct stat buf; |
| 1208 | char path[PATH_MAX_LENGTH]; |
| 1209 | #if defined(DT_DIR) |
| 1210 | const struct dirent *entry = (const struct dirent*)rdir->entry; |
| 1211 | if (entry->d_type == DT_DIR) |
| 1212 | return true; |
| 1213 | /* This can happen on certain file systems. */ |
| 1214 | if (!(entry->d_type == DT_UNKNOWN || entry->d_type == DT_LNK)) |
| 1215 | return false; |
| 1216 | #endif |
| 1217 | /* dirent struct doesn't have d_type, do it the slow way ... */ |
| 1218 | fill_pathname_join_special(path, rdir->orig_path, retro_vfs_dirent_get_name_impl(rdir), sizeof(path)); |
| 1219 | if (stat(path, &buf) < 0) |
| 1220 | return false; |
| 1221 | return S_ISDIR(buf.st_mode); |
| 1222 | #endif |
| 1223 | } |
| 1224 | |
| 1225 | int retro_vfs_closedir_impl(libretro_vfs_implementation_dir *rdir) |
| 1226 | { |
| 1227 | if (!rdir) |
| 1228 | return -1; |
| 1229 | |
| 1230 | #if defined(_WIN32) |
| 1231 | if (rdir->directory != INVALID_HANDLE_VALUE) |
| 1232 | FindClose(rdir->directory); |
| 1233 | #elif defined(VITA) |
| 1234 | sceIoDclose(rdir->directory); |
| 1235 | #elif defined(__PSL1GHT__) || defined(__PS3__) |
| 1236 | rdir->error = sysFsClosedir(rdir->directory); |
| 1237 | #else |
| 1238 | if (rdir->directory) |
| 1239 | closedir(rdir->directory); |
| 1240 | #endif |
| 1241 | |
| 1242 | if (rdir->orig_path) |
| 1243 | free(rdir->orig_path); |
| 1244 | free(rdir); |
| 1245 | return 0; |
| 1246 | } |