removed tinydir and replaced with built in functions.
sophuwu sophie@sophuwu.site
Thu, 03 Aug 2023 16:29:14 +0200
D
tinydir.h
@@ -1,838 +0,0 @@
-/* -Copyright (c) 2013-2021, tinydir authors: -- Cong Xu -- Lautis Sun -- Baudouin Feildel -- Andargor <andargor@yahoo.com> -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. -2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR -ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -#ifndef TINYDIR_H -#define TINYDIR_H - -#ifdef __cplusplus -extern "C" { -#endif - -#if ((defined _UNICODE) && !(defined UNICODE)) -#define UNICODE -#endif - -#if ((defined UNICODE) && !(defined _UNICODE)) -#define _UNICODE -#endif - -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#ifdef _MSC_VER -# ifndef WIN32_LEAN_AND_MEAN -# define WIN32_LEAN_AND_MEAN -# endif -# include <windows.h> -# include <tchar.h> -# pragma warning(push) -# pragma warning (disable : 4996) -#else -# include <dirent.h> -# include <libgen.h> -# include <sys/stat.h> -# include <stddef.h> -#endif -#ifdef __MINGW32__ -# include <tchar.h> -#endif - - -/* types */ - -/* Windows UNICODE wide character support */ -#if defined _MSC_VER || defined __MINGW32__ -# define _tinydir_char_t TCHAR -# define TINYDIR_STRING(s) _TEXT(s) -# define _tinydir_strlen _tcslen -# define _tinydir_strcpy _tcscpy -# define _tinydir_strcat _tcscat -# define _tinydir_strcmp _tcscmp -# define _tinydir_strrchr _tcsrchr -# define _tinydir_strncmp _tcsncmp -#else -# define _tinydir_char_t char -# define TINYDIR_STRING(s) s -# define _tinydir_strlen strlen -# define _tinydir_strcpy strcpy -# define _tinydir_strcat strcat -# define _tinydir_strcmp strcmp -# define _tinydir_strrchr strrchr -# define _tinydir_strncmp strncmp -#endif - -#if (defined _MSC_VER || defined __MINGW32__) -# include <windows.h> -# define _TINYDIR_PATH_MAX MAX_PATH -#elif defined __linux__ -# include <limits.h> -# ifdef PATH_MAX -# define _TINYDIR_PATH_MAX PATH_MAX -# endif -#elif defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) -# include <sys/param.h> -# if defined(BSD) -# include <limits.h> -# ifdef PATH_MAX -# define _TINYDIR_PATH_MAX PATH_MAX -# endif -# endif -#endif - -#ifndef _TINYDIR_PATH_MAX -#define _TINYDIR_PATH_MAX 4096 -#endif - -#ifdef _MSC_VER -/* extra chars for the "\\*" mask */ -# define _TINYDIR_PATH_EXTRA 2 -#else -# define _TINYDIR_PATH_EXTRA 0 -#endif - -#define _TINYDIR_FILENAME_MAX 256 - -#if (defined _MSC_VER || defined __MINGW32__) -#define _TINYDIR_DRIVE_MAX 3 -#endif - -#ifdef _MSC_VER -# define _TINYDIR_FUNC static __inline -#elif !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L -# define _TINYDIR_FUNC static __inline__ -#elif defined(__cplusplus) -# define _TINYDIR_FUNC static inline -#elif defined(__GNUC__) -/* Suppress unused function warning */ -# define _TINYDIR_FUNC __attribute__((unused)) static -#else -# define _TINYDIR_FUNC static -#endif - -/* readdir_r usage; define TINYDIR_USE_READDIR_R to use it (if supported) */ -#ifdef TINYDIR_USE_READDIR_R - -/* readdir_r is a POSIX-only function, and may not be available under various - * environments/settings, e.g. MinGW. Use readdir fallback */ -#if _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _BSD_SOURCE || _SVID_SOURCE ||\ - _POSIX_SOURCE -# define _TINYDIR_HAS_READDIR_R -#endif -#if _POSIX_C_SOURCE >= 200112L -# define _TINYDIR_HAS_FPATHCONF -# include <unistd.h> -#endif -#if _BSD_SOURCE || _SVID_SOURCE || \ - (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) -# define _TINYDIR_HAS_DIRFD -# include <sys/types.h> -#endif -#if defined _TINYDIR_HAS_FPATHCONF && defined _TINYDIR_HAS_DIRFD &&\ - defined _PC_NAME_MAX -# define _TINYDIR_USE_FPATHCONF -#endif -#if defined __MINGW32__ || !defined _TINYDIR_HAS_READDIR_R ||\ - !(defined _TINYDIR_USE_FPATHCONF || defined NAME_MAX) -# define _TINYDIR_USE_READDIR -#endif - -/* Use readdir by default */ -#else -# define _TINYDIR_USE_READDIR -#endif - -/* MINGW32 has two versions of dirent, ASCII and UNICODE*/ -#ifndef _MSC_VER -#if (defined __MINGW32__) && (defined _UNICODE) -#define _TINYDIR_DIR _WDIR -#define _tinydir_dirent _wdirent -#define _tinydir_opendir _wopendir -#define _tinydir_readdir _wreaddir -#define _tinydir_closedir _wclosedir -#else -#define _TINYDIR_DIR DIR -#define _tinydir_dirent dirent -#define _tinydir_opendir opendir -#define _tinydir_readdir readdir -#define _tinydir_closedir closedir -#endif -#endif - -/* Allow user to use a custom allocator by defining _TINYDIR_MALLOC and _TINYDIR_FREE. */ -#if defined(_TINYDIR_MALLOC) && defined(_TINYDIR_FREE) -#elif !defined(_TINYDIR_MALLOC) && !defined(_TINYDIR_FREE) -#else -#error "Either define both alloc and free or none of them!" -#endif - -#if !defined(_TINYDIR_MALLOC) - #define _TINYDIR_MALLOC(_size) malloc(_size) - #define _TINYDIR_FREE(_ptr) free(_ptr) -#endif /* !defined(_TINYDIR_MALLOC) */ - -typedef struct tinydir_file -{ - _tinydir_char_t path[_TINYDIR_PATH_MAX]; - _tinydir_char_t name[_TINYDIR_FILENAME_MAX]; - _tinydir_char_t *extension; - int is_dir; - int is_reg; - -#ifndef _MSC_VER -#ifdef __MINGW32__ - struct _stat _s; -#else - struct stat _s; -#endif -#endif -} tinydir_file; - -typedef struct tinydir_dir -{ - _tinydir_char_t path[_TINYDIR_PATH_MAX]; - int has_next; - size_t n_files; - - tinydir_file *_files; -#ifdef _MSC_VER - HANDLE _h; - WIN32_FIND_DATA _f; -#else - _TINYDIR_DIR *_d; - struct _tinydir_dirent *_e; -#ifndef _TINYDIR_USE_READDIR - struct _tinydir_dirent *_ep; -#endif -#endif -} tinydir_dir; - - -/* declarations */ - -_TINYDIR_FUNC -int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path); -_TINYDIR_FUNC -int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path); -_TINYDIR_FUNC -void tinydir_close(tinydir_dir *dir); - -_TINYDIR_FUNC -int tinydir_next(tinydir_dir *dir); -_TINYDIR_FUNC -int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file); -_TINYDIR_FUNC -int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i); -_TINYDIR_FUNC -int tinydir_open_subdir_n(tinydir_dir *dir, size_t i); - -_TINYDIR_FUNC -int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path); -_TINYDIR_FUNC -void _tinydir_get_ext(tinydir_file *file); -_TINYDIR_FUNC -int _tinydir_file_cmp(const void *a, const void *b); -#ifndef _MSC_VER -#ifndef _TINYDIR_USE_READDIR -_TINYDIR_FUNC -size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp); -#endif -#endif - - -/* definitions*/ - -_TINYDIR_FUNC -int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path) -{ -#ifndef _MSC_VER -#ifndef _TINYDIR_USE_READDIR - int error; - int size; /* using int size */ -#endif -#else - _tinydir_char_t path_buf[_TINYDIR_PATH_MAX]; -#endif - _tinydir_char_t *pathp; - - if (dir == NULL || path == NULL || _tinydir_strlen(path) == 0) - { - errno = EINVAL; - return -1; - } - if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX) - { - errno = ENAMETOOLONG; - return -1; - } - - /* initialise dir */ - dir->_files = NULL; -#ifdef _MSC_VER - dir->_h = INVALID_HANDLE_VALUE; -#else - dir->_d = NULL; -#ifndef _TINYDIR_USE_READDIR - dir->_ep = NULL; -#endif -#endif - tinydir_close(dir); - - _tinydir_strcpy(dir->path, path); - /* Remove trailing slashes */ - pathp = &dir->path[_tinydir_strlen(dir->path) - 1]; - while (pathp != dir->path && (*pathp == TINYDIR_STRING('\\') || *pathp == TINYDIR_STRING('/'))) - { - *pathp = TINYDIR_STRING('\0'); - pathp++; - } -#ifdef _MSC_VER - _tinydir_strcpy(path_buf, dir->path); - _tinydir_strcat(path_buf, TINYDIR_STRING("\\*")); -#if (defined WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP) - dir->_h = FindFirstFileEx(path_buf, FindExInfoStandard, &dir->_f, FindExSearchNameMatch, NULL, 0); -#else - dir->_h = FindFirstFile(path_buf, &dir->_f); -#endif - if (dir->_h == INVALID_HANDLE_VALUE) - { - errno = ENOENT; -#else - dir->_d = _tinydir_opendir(path); - if (dir->_d == NULL) - { -#endif - goto bail; - } - - /* read first file */ - dir->has_next = 1; -#ifndef _MSC_VER -#ifdef _TINYDIR_USE_READDIR - dir->_e = _tinydir_readdir(dir->_d); -#else - /* allocate dirent buffer for readdir_r */ - size = _tinydir_dirent_buf_size(dir->_d); /* conversion to int */ - if (size == -1) return -1; - dir->_ep = (struct _tinydir_dirent*)_TINYDIR_MALLOC(size); - if (dir->_ep == NULL) return -1; - - error = readdir_r(dir->_d, dir->_ep, &dir->_e); - if (error != 0) return -1; -#endif - if (dir->_e == NULL) - { - dir->has_next = 0; - } -#endif - - return 0; - -bail: - tinydir_close(dir); - return -1; -} - -_TINYDIR_FUNC -int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path) -{ - /* Count the number of files first, to pre-allocate the files array */ - size_t n_files = 0; - if (tinydir_open(dir, path) == -1) - { - return -1; - } - while (dir->has_next) - { - n_files++; - if (tinydir_next(dir) == -1) - { - goto bail; - } - } - tinydir_close(dir); - - if (n_files == 0 || tinydir_open(dir, path) == -1) - { - return -1; - } - - dir->n_files = 0; - dir->_files = (tinydir_file *)_TINYDIR_MALLOC(sizeof *dir->_files * n_files); - if (dir->_files == NULL) - { - goto bail; - } - while (dir->has_next) - { - tinydir_file *p_file; - dir->n_files++; - - p_file = &dir->_files[dir->n_files - 1]; - if (tinydir_readfile(dir, p_file) == -1) - { - goto bail; - } - - if (tinydir_next(dir) == -1) - { - goto bail; - } - - /* Just in case the number of files has changed between the first and - second reads, terminate without writing into unallocated memory */ - if (dir->n_files == n_files) - { - break; - } - } - - qsort(dir->_files, dir->n_files, sizeof(tinydir_file), _tinydir_file_cmp); - - return 0; - -bail: - tinydir_close(dir); - return -1; -} - -_TINYDIR_FUNC -void tinydir_close(tinydir_dir *dir) -{ - if (dir == NULL) - { - return; - } - - memset(dir->path, 0, sizeof(dir->path)); - dir->has_next = 0; - dir->n_files = 0; - _TINYDIR_FREE(dir->_files); - dir->_files = NULL; -#ifdef _MSC_VER - if (dir->_h != INVALID_HANDLE_VALUE) - { - FindClose(dir->_h); - } - dir->_h = INVALID_HANDLE_VALUE; -#else - if (dir->_d) - { - _tinydir_closedir(dir->_d); - } - dir->_d = NULL; - dir->_e = NULL; -#ifndef _TINYDIR_USE_READDIR - _TINYDIR_FREE(dir->_ep); - dir->_ep = NULL; -#endif -#endif -} - -_TINYDIR_FUNC -int tinydir_next(tinydir_dir *dir) -{ - if (dir == NULL) - { - errno = EINVAL; - return -1; - } - if (!dir->has_next) - { - errno = ENOENT; - return -1; - } - -#ifdef _MSC_VER - if (FindNextFile(dir->_h, &dir->_f) == 0) -#else -#ifdef _TINYDIR_USE_READDIR - dir->_e = _tinydir_readdir(dir->_d); -#else - if (dir->_ep == NULL) - { - return -1; - } - if (readdir_r(dir->_d, dir->_ep, &dir->_e) != 0) - { - return -1; - } -#endif - if (dir->_e == NULL) -#endif - { - dir->has_next = 0; -#ifdef _MSC_VER - if (GetLastError() != ERROR_SUCCESS && - GetLastError() != ERROR_NO_MORE_FILES) - { - tinydir_close(dir); - errno = EIO; - return -1; - } -#endif - } - - return 0; -} - -_TINYDIR_FUNC -int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file) -{ - const _tinydir_char_t *filename; - if (dir == NULL || file == NULL) - { - errno = EINVAL; - return -1; - } -#ifdef _MSC_VER - if (dir->_h == INVALID_HANDLE_VALUE) -#else - if (dir->_e == NULL) -#endif - { - errno = ENOENT; - return -1; - } - filename = -#ifdef _MSC_VER - dir->_f.cFileName; -#else - dir->_e->d_name; -#endif - if (_tinydir_strlen(dir->path) + - _tinydir_strlen(filename) + 1 + _TINYDIR_PATH_EXTRA >= - _TINYDIR_PATH_MAX) - { - /* the path for the file will be too long */ - errno = ENAMETOOLONG; - return -1; - } - if (_tinydir_strlen(filename) >= _TINYDIR_FILENAME_MAX) - { - errno = ENAMETOOLONG; - return -1; - } - - _tinydir_strcpy(file->path, dir->path); - if (_tinydir_strcmp(dir->path, TINYDIR_STRING("/")) != 0) - _tinydir_strcat(file->path, TINYDIR_STRING("/")); - _tinydir_strcpy(file->name, filename); - _tinydir_strcat(file->path, filename); -#ifndef _MSC_VER -#ifdef __MINGW32__ - if (_tstat( -#elif (defined _BSD_SOURCE) || (defined _DEFAULT_SOURCE) \ - || ((defined _XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) \ - || ((defined _POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) \ - || ((defined __APPLE__) && (defined __MACH__)) \ - || (defined BSD) - if (lstat( -#else - if (stat( -#endif - file->path, &file->_s) == -1) - { - return -1; - } -#endif - _tinydir_get_ext(file); - - file->is_dir = -#ifdef _MSC_VER - !!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY); -#else - S_ISDIR(file->_s.st_mode); -#endif - file->is_reg = -#ifdef _MSC_VER - !!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NORMAL) || - ( - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DEVICE) && - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_ENCRYPTED) && -#ifdef FILE_ATTRIBUTE_INTEGRITY_STREAM - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_INTEGRITY_STREAM) && -#endif -#ifdef FILE_ATTRIBUTE_NO_SCRUB_DATA - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NO_SCRUB_DATA) && -#endif - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_OFFLINE) && - !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_TEMPORARY)); -#else - S_ISREG(file->_s.st_mode); -#endif - - return 0; -} - -_TINYDIR_FUNC -int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i) -{ - if (dir == NULL || file == NULL) - { - errno = EINVAL; - return -1; - } - if (i >= dir->n_files) - { - errno = ENOENT; - return -1; - } - - memcpy(file, &dir->_files[i], sizeof(tinydir_file)); - _tinydir_get_ext(file); - - return 0; -} - -_TINYDIR_FUNC -int tinydir_open_subdir_n(tinydir_dir *dir, size_t i) -{ - _tinydir_char_t path[_TINYDIR_PATH_MAX]; - if (dir == NULL) - { - errno = EINVAL; - return -1; - } - if (i >= dir->n_files || !dir->_files[i].is_dir) - { - errno = ENOENT; - return -1; - } - - _tinydir_strcpy(path, dir->_files[i].path); - tinydir_close(dir); - if (tinydir_open_sorted(dir, path) == -1) - { - return -1; - } - - return 0; -} - -/* Open a single file given its path */ -_TINYDIR_FUNC -int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path) -{ - tinydir_dir dir; - int result = 0; - int found = 0; - _tinydir_char_t dir_name_buf[_TINYDIR_PATH_MAX]; - _tinydir_char_t file_name_buf[_TINYDIR_FILENAME_MAX]; - _tinydir_char_t *dir_name; - _tinydir_char_t *base_name; -#if (defined _MSC_VER || defined __MINGW32__) - _tinydir_char_t drive_buf[_TINYDIR_PATH_MAX]; - _tinydir_char_t ext_buf[_TINYDIR_FILENAME_MAX]; -#endif - - if (file == NULL || path == NULL || _tinydir_strlen(path) == 0) - { - errno = EINVAL; - return -1; - } - if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX) - { - errno = ENAMETOOLONG; - return -1; - } - - /* Get the parent path */ -#if (defined _MSC_VER || defined __MINGW32__) -#if ((defined _MSC_VER) && (_MSC_VER >= 1400)) - errno = _tsplitpath_s( - path, - drive_buf, _TINYDIR_DRIVE_MAX, - dir_name_buf, _TINYDIR_FILENAME_MAX, - file_name_buf, _TINYDIR_FILENAME_MAX, - ext_buf, _TINYDIR_FILENAME_MAX); -#else - _tsplitpath( - path, - drive_buf, - dir_name_buf, - file_name_buf, - ext_buf); -#endif - - if (errno) - { - return -1; - } - -/* _splitpath_s not work fine with only filename and widechar support */ -#ifdef _UNICODE - if (drive_buf[0] == L'\xFEFE') - drive_buf[0] = '\0'; - if (dir_name_buf[0] == L'\xFEFE') - dir_name_buf[0] = '\0'; -#endif - - /* Emulate the behavior of dirname by returning "." for dir name if it's - empty */ - if (drive_buf[0] == '\0' && dir_name_buf[0] == '\0') - { - _tinydir_strcpy(dir_name_buf, TINYDIR_STRING(".")); - } - /* Concatenate the drive letter and dir name to form full dir name */ - _tinydir_strcat(drive_buf, dir_name_buf); - dir_name = drive_buf; - /* Concatenate the file name and extension to form base name */ - _tinydir_strcat(file_name_buf, ext_buf); - base_name = file_name_buf; -#else - _tinydir_strcpy(dir_name_buf, path); - dir_name = dirname(dir_name_buf); - _tinydir_strcpy(file_name_buf, path); - base_name = basename(file_name_buf); -#endif - - /* Special case: if the path is a root dir, open the parent dir as the file */ -#if (defined _MSC_VER || defined __MINGW32__) - if (_tinydir_strlen(base_name) == 0) -#else - if ((_tinydir_strcmp(base_name, TINYDIR_STRING("/"))) == 0) -#endif - { - memset(file, 0, sizeof * file); - file->is_dir = 1; - file->is_reg = 0; - _tinydir_strcpy(file->path, dir_name); - file->extension = file->path + _tinydir_strlen(file->path); - return 0; - } - - /* Open the parent directory */ - if (tinydir_open(&dir, dir_name) == -1) - { - return -1; - } - - /* Read through the parent directory and look for the file */ - while (dir.has_next) - { - if (tinydir_readfile(&dir, file) == -1) - { - result = -1; - goto bail; - } - if (_tinydir_strcmp(file->name, base_name) == 0) - { - /* File found */ - found = 1; - break; - } - tinydir_next(&dir); - } - if (!found) - { - result = -1; - errno = ENOENT; - } - -bail: - tinydir_close(&dir); - return result; -} - -_TINYDIR_FUNC -void _tinydir_get_ext(tinydir_file *file) -{ - _tinydir_char_t *period = _tinydir_strrchr(file->name, TINYDIR_STRING('.')); - if (period == NULL) - { - file->extension = &(file->name[_tinydir_strlen(file->name)]); - } - else - { - file->extension = period + 1; - } -} - -_TINYDIR_FUNC -int _tinydir_file_cmp(const void *a, const void *b) -{ - const tinydir_file *fa = (const tinydir_file *)a; - const tinydir_file *fb = (const tinydir_file *)b; - if (fa->is_dir != fb->is_dir) - { - return -(fa->is_dir - fb->is_dir); - } - return _tinydir_strncmp(fa->name, fb->name, _TINYDIR_FILENAME_MAX); -} - -#ifndef _MSC_VER -#ifndef _TINYDIR_USE_READDIR -/* -The following authored by Ben Hutchings <ben@decadent.org.uk> -from https://womble.decadent.org.uk/readdir_r-advisory.html -*/ -/* Calculate the required buffer size (in bytes) for directory * -* entries read from the given directory handle. Return -1 if this * -* this cannot be done. * -* * -* This code does not trust values of NAME_MAX that are less than * -* 255, since some systems (including at least HP-UX) incorrectly * -* define it to be a smaller value. */ -_TINYDIR_FUNC -size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp) -{ - long name_max; - size_t name_end; - /* parameter may be unused */ - (void)dirp; - -#if defined _TINYDIR_USE_FPATHCONF - name_max = fpathconf(dirfd(dirp), _PC_NAME_MAX); - if (name_max == -1) -#if defined(NAME_MAX) - name_max = (NAME_MAX > 255) ? NAME_MAX : 255; -#else - return (size_t)(-1); -#endif -#elif defined(NAME_MAX) - name_max = (NAME_MAX > 255) ? NAME_MAX : 255; -#else -#error "buffer size for readdir_r cannot be determined" -#endif - name_end = (size_t)offsetof(struct _tinydir_dirent, d_name) + name_max + 1; - return (name_end > sizeof(struct _tinydir_dirent) ? - name_end : sizeof(struct _tinydir_dirent)); -} -#endif -#endif - -#ifdef __cplusplus -} -#endif - -# if defined (_MSC_VER) -# pragma warning(pop) -# endif - -#endif