int retro_vfs_file_rename_impl(const char *old_path, const char *new_path) { char *old_path_local = NULL; char *new_path_local = NULL; wchar_t *old_path_wide = NULL; wchar_t *new_path_wide = NULL; if (!old_path || !*old_path || !new_path || !*new_path) return -1; (void)old_path_local; (void)new_path_local; (void)old_path_wide; (void)new_path_wide; #if defined(_WIN32) && !defined(_XBOX) #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 old_path_local = utf8_to_local_string_alloc(old_path); new_path_local = utf8_to_local_string_alloc(new_path); if (old_path_local) { if (new_path_local) { int ret = rename(old_path_local, new_path_local); free(old_path_local); free(new_path_local); return ret==0 ? 0 : -1; } free(old_path_local); } if (new_path_local) free(new_path_local); #else old_path_wide = utf8_to_utf16_string_alloc(old_path); new_path_wide = utf8_to_utf16_string_alloc(new_path); if (old_path_wide) { if (new_path_wide) { int ret = _wrename(old_path_wide, new_path_wide); free(old_path_wide); free(new_path_wide); return ret==0 ? 0 : -1; } free(old_path_wide); } if (new_path_wide) free(new_path_wide); #endif return -1; #else return rename(old_path, new_path)==0 ? 0 : -1; #endif }
static void *nbio_stdio_open(const char * filename, unsigned mode) { void *buf = NULL; struct nbio_stdio_t* handle = NULL; size_t len = 0; #if !defined(_WIN32) || defined(LEGACY_WIN32) FILE* f = fopen(filename, stdio_modes[mode]); #else wchar_t *filename_wide = utf8_to_utf16_string_alloc(filename); FILE* f = _wfopen(filename_wide, stdio_modes[mode]); if (filename_wide) free(filename_wide); #endif if (!f) return NULL; handle = (struct nbio_stdio_t*)malloc(sizeof(struct nbio_stdio_t)); if (!handle) goto error; handle->f = f; switch (mode) { case NBIO_WRITE: case BIO_WRITE: break; default: fseek(handle->f, 0, SEEK_END); len = ftell(handle->f); break; } handle->mode = mode; if (len) buf = malloc(len); if (len && !buf) goto error; handle->data = buf; handle->len = len; handle->progress = handle->len; handle->op = -2; return handle; error: if (handle) free(handle); fclose(f); return NULL; }
static void *nbio_mmap_win32_open(const char * filename, unsigned mode) { static const DWORD dispositions[] = { OPEN_EXISTING, CREATE_ALWAYS, OPEN_ALWAYS, OPEN_EXISTING, CREATE_ALWAYS }; HANDLE mem; #if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0500 LARGE_INTEGER len; #else SIZE_T len; #endif struct nbio_mmap_win32_t* handle = NULL; void* ptr = NULL; bool is_write = (mode == NBIO_WRITE || mode == NBIO_UPDATE || mode == BIO_WRITE); DWORD access = (is_write ? GENERIC_READ|GENERIC_WRITE : GENERIC_READ); #if !defined(_WIN32) || defined(LEGACY_WIN32) HANDLE file = CreateFile(filename, access, FILE_SHARE_ALL, NULL, dispositions[mode], FILE_ATTRIBUTE_NORMAL, NULL); #else wchar_t *filename_wide = utf8_to_utf16_string_alloc(filename); HANDLE file = CreateFileW(filename_wide, access, FILE_SHARE_ALL, NULL, dispositions[mode], FILE_ATTRIBUTE_NORMAL, NULL); if (filename_wide) free(filename_wide); #endif if (file == INVALID_HANDLE_VALUE) return NULL; #if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0500 /* GetFileSizeEx is new for Windows 2000 */ GetFileSizeEx(file, &len); mem = CreateFileMapping(file, NULL, is_write ? PAGE_READWRITE : PAGE_READONLY, 0, 0, NULL); ptr = MapViewOfFile(mem, is_write ? (FILE_MAP_READ|FILE_MAP_WRITE) : FILE_MAP_READ, 0, 0, len.QuadPart); #else GetFileSize(file, &len); mem = CreateFileMapping(file, NULL, is_write ? PAGE_READWRITE : PAGE_READONLY, 0, 0, NULL); ptr = MapViewOfFile(mem, is_write ? (FILE_MAP_READ|FILE_MAP_WRITE) : FILE_MAP_READ, 0, 0, len); #endif CloseHandle(mem); handle = (struct nbio_mmap_win32_t*)malloc(sizeof(struct nbio_mmap_win32_t)); handle->file = file; handle->is_write = is_write; #if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0500 handle->len = len.QuadPart; #else handle->len = len; #endif handle->ptr = ptr; return handle; }
int retro_vfs_file_remove_impl(const char *path) { char *path_local = NULL; wchar_t *path_wide = NULL; if (!path || !*path) return -1; (void)path_local; (void)path_wide; #if defined(_WIN32) && !defined(_XBOX) #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 path_local = utf8_to_local_string_alloc(path); if (path_local) { int ret = remove(path_local); free(path_local); if (ret == 0) return 0; } #else path_wide = utf8_to_utf16_string_alloc(path); if (path_wide) { int ret = _wremove(path_wide); free(path_wide); if (ret == 0) return 0; } #endif #else if (remove(path) == 0) return 0; #endif return -1; }
libretro_vfs_implementation_file *retro_vfs_file_open_impl(const char *path, unsigned mode, unsigned hints) { int flags = 0; const char *mode_str = NULL; libretro_vfs_implementation_file *stream = (libretro_vfs_implementation_file*)calloc(1, sizeof(*stream)); #ifdef VFS_FRONTEND const char *dumb_prefix = "vfsonly://"; int dumb_prefix_len = (int)strlen(dumb_prefix); int path_len = (int)strlen(path); if (path_len >= dumb_prefix_len) if (!memcmp(path, dumb_prefix, dumb_prefix_len)) path += strlen(dumb_prefix); #endif if (!stream) return NULL; (void)flags; stream->hints = hints; stream->orig_path = strdup(path); #ifdef HAVE_MMAP if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS && mode == RETRO_VFS_FILE_ACCESS_READ) stream->hints |= RFILE_HINT_UNBUFFERED; else #endif stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; switch (mode) { case RETRO_VFS_FILE_ACCESS_READ: mode_str = "rb"; flags = O_RDONLY; #ifdef _WIN32 flags |= O_BINARY; #endif break; case RETRO_VFS_FILE_ACCESS_WRITE: mode_str = "wb"; flags = O_WRONLY | O_CREAT | O_TRUNC; #if defined(PS2) flags |= FIO_S_IRUSR | FIO_S_IWUSR; #elif !defined(_WIN32) flags |= S_IRUSR | S_IWUSR; #else flags |= O_BINARY; #endif break; case RETRO_VFS_FILE_ACCESS_READ_WRITE: mode_str = "w+b"; flags = O_RDWR | O_CREAT | O_TRUNC; #if defined(PS2) flags |= FIO_S_IRUSR | FIO_S_IWUSR; #elif !defined(_WIN32) flags |= S_IRUSR | S_IWUSR; #else flags |= O_BINARY; #endif break; case RETRO_VFS_FILE_ACCESS_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: case RETRO_VFS_FILE_ACCESS_READ_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING: mode_str = "r+b"; flags = O_RDWR; #if defined(PS2) flags |= FIO_S_IRUSR | FIO_S_IWUSR; #elif !defined(_WIN32) flags |= S_IRUSR | S_IWUSR; #else flags |= O_BINARY; #endif break; default: goto error; } if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0) { FILE *fp = (FILE*)fopen_utf8(path, mode_str); if (!fp) goto error; /* Regarding setvbuf: * * https://www.freebsd.org/cgi/man.cgi?query=setvbuf&apropos=0&sektion=0&manpath=FreeBSD+11.1-RELEASE&arch=default&format=html * * If the size argument is not zero but buf is NULL, a buffer of the given size will be allocated immediately, and * released on close. This is an extension to ANSI C. * * Since C89 does not support specifying a null buffer with a non-zero size, we create and track our own buffer for it. */ /* TODO: this is only useful for a few platforms, find which and add ifdef */ stream->fp = fp; stream->buf = (char*)calloc(1, 0x4000); setvbuf(stream->fp, stream->buf, _IOFBF, 0x4000); } else { #if defined(_WIN32) && !defined(_XBOX) #if defined(LEGACY_WIN32) char *path_local = utf8_to_local_string_alloc(path); stream->fd = open(path_local, flags, 0); if (path_local) free(path_local); #else wchar_t * path_wide = utf8_to_utf16_string_alloc(path); stream->fd = _wopen(path_wide, flags, 0); if (path_wide) free(path_wide); #endif #else stream->fd = open(path, flags, 0); #endif if (stream->fd == -1) goto error; #ifdef HAVE_MMAP if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS) { stream->mappos = 0; stream->mapped = NULL; stream->mapsize = retro_vfs_file_seek_internal(stream, 0, SEEK_END); if (stream->mapsize == (uint64_t)-1) goto error; retro_vfs_file_seek_internal(stream, 0, SEEK_SET); stream->mapped = (uint8_t*)mmap((void*)0, stream->mapsize, PROT_READ, MAP_SHARED, stream->fd, 0); if (stream->mapped == MAP_FAILED) stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS; } #endif } retro_vfs_file_seek_internal(stream, 0, SEEK_SET); retro_vfs_file_seek_internal(stream, 0, SEEK_END); stream->size = retro_vfs_file_tell_impl(stream); retro_vfs_file_seek_internal(stream, 0, SEEK_SET); return stream; error: retro_vfs_file_close_impl(stream); return NULL; }
/** * path_mkdir: * @dir : directory * * Create directory on filesystem. * * Returns: true (1) if directory could be created, otherwise false (0). **/ bool path_mkdir(const char *dir) { /* Use heap. Real chance of stack overflow if we recurse too hard. */ const char *target = NULL; bool sret = false; bool norecurse = false; char *basedir = NULL; if (dir && *dir) basedir = strdup(dir); if (!basedir) return false; path_parent_dir(basedir); if (!*basedir || !strcmp(basedir, dir)) goto end; if (path_is_directory(basedir)) { target = dir; norecurse = true; } else { target = basedir; sret = path_mkdir(basedir); if (sret) { target = dir; norecurse = true; } } if (norecurse) { #if defined(_WIN32) #ifdef LEGACY_WIN32 int ret = _mkdir(dir); #else wchar_t *dirW = utf8_to_utf16_string_alloc(dir); int ret = -1; if (dirW) { ret = _wmkdir(dirW); free(dirW); } #endif #elif defined(IOS) int ret = mkdir(dir, 0755); #elif defined(VITA) || defined(PSP) int ret = sceIoMkdir(dir, 0777); #elif defined(__QNX__) int ret = mkdir(dir, 0777); #else int ret = mkdir(dir, 0750); #endif /* Don't treat this as an error. */ if (path_mkdir_error(ret) && path_is_directory(dir)) ret = 0; if (ret < 0) printf("mkdir(%s) error: %s.\n", dir, strerror(errno)); sret = (ret == 0); } end: if (target && !sret) printf("Failed to create directory: \"%s\".\n", target); free(basedir); return sret; }
static bool path_stat(const char *path, enum stat_mode mode, int32_t *size) { #if defined(VITA) || defined(PSP) SceIoStat buf; char *tmp = strdup(path); size_t len = strlen(tmp); if (tmp[len-1] == '/') tmp[len-1]='\0'; if (sceIoGetstat(tmp, &buf) < 0) { free(tmp); return false; } free(tmp); #elif defined(__CELLOS_LV2__) CellFsStat buf; if (cellFsStat(path, &buf) < 0) return false; #elif defined(_WIN32) struct _stat buf; char *path_local; wchar_t *path_wide; DWORD file_info; if (!path || !*path) return false; (void)path_wide; (void)path_local; (void)file_info; #if defined(LEGACY_WIN32) path_local = utf8_to_local_string_alloc(path); file_info = GetFileAttributes(path_local); _stat(path_local, &buf); if (path_local) free(path_local); #else path_wide = utf8_to_utf16_string_alloc(path); file_info = GetFileAttributesW(path_wide); _wstat(path_wide, &buf); if (path_wide) free(path_wide); #endif if (file_info == INVALID_FILE_ATTRIBUTES) return false; #else struct stat buf; if (stat(path, &buf) < 0) return false; #endif if (size) *size = (int32_t)buf.st_size; switch (mode) { case IS_DIRECTORY: #if defined(VITA) || defined(PSP) return FIO_S_ISDIR(buf.st_mode); #elif defined(__CELLOS_LV2__) return ((buf.st_mode & S_IFMT) == S_IFDIR); #elif defined(_WIN32) return (file_info & FILE_ATTRIBUTE_DIRECTORY); #else return S_ISDIR(buf.st_mode); #endif case IS_CHARACTER_SPECIAL: #if defined(VITA) || defined(PSP) || defined(__CELLOS_LV2__) || defined(_WIN32) return false; #else return S_ISCHR(buf.st_mode); #endif case IS_VALID: return true; } return false; }