win-dirent.h: MIT-licensed port of dirent to win32 from https://github.com/tronkko/dirent
Dan Kegel
parent
d4098f95c3
commit
35d0f63daf
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/*
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* Dirent interface for Microsoft Visual Studio
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* Version 1.21
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*
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* Copyright (C) 2006-2012 Toni Ronkko
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* This file is part of dirent. Dirent may be freely distributed
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* under the MIT license. For all details and documentation, see
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* https://github.com/tronkko/dirent
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*/
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#ifndef DIRENT_H
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#define DIRENT_H
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/*
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* Include windows.h without Windows Sockets 1.1 to prevent conflicts with
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* Windows Sockets 2.0.
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*/
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#ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <wchar.h>
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#include <string.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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/* Indicates that d_type field is available in dirent structure */
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#define _DIRENT_HAVE_D_TYPE
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/* Indicates that d_namlen field is available in dirent structure */
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#define _DIRENT_HAVE_D_NAMLEN
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/* Entries missing from MSVC 6.0 */
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#if !defined(FILE_ATTRIBUTE_DEVICE)
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# define FILE_ATTRIBUTE_DEVICE 0x40
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#endif
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/* File type and permission flags for stat(), general mask */
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#if !defined(S_IFMT)
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# define S_IFMT _S_IFMT
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#endif
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/* Directory bit */
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#if !defined(S_IFDIR)
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# define S_IFDIR _S_IFDIR
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#endif
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/* Character device bit */
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#if !defined(S_IFCHR)
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# define S_IFCHR _S_IFCHR
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#endif
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/* Pipe bit */
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#if !defined(S_IFFIFO)
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# define S_IFFIFO _S_IFFIFO
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#endif
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/* Regular file bit */
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#if !defined(S_IFREG)
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# define S_IFREG _S_IFREG
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#endif
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/* Read permission */
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#if !defined(S_IREAD)
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# define S_IREAD _S_IREAD
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#endif
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/* Write permission */
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#if !defined(S_IWRITE)
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# define S_IWRITE _S_IWRITE
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#endif
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/* Execute permission */
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#if !defined(S_IEXEC)
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# define S_IEXEC _S_IEXEC
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#endif
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/* Pipe */
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#if !defined(S_IFIFO)
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# define S_IFIFO _S_IFIFO
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#endif
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/* Block device */
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#if !defined(S_IFBLK)
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# define S_IFBLK 0
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#endif
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/* Link */
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#if !defined(S_IFLNK)
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# define S_IFLNK 0
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#endif
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/* Socket */
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#if !defined(S_IFSOCK)
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# define S_IFSOCK 0
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#endif
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/* Read user permission */
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#if !defined(S_IRUSR)
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# define S_IRUSR S_IREAD
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#endif
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/* Write user permission */
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#if !defined(S_IWUSR)
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# define S_IWUSR S_IWRITE
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#endif
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/* Execute user permission */
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#if !defined(S_IXUSR)
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# define S_IXUSR 0
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#endif
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/* Read group permission */
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#if !defined(S_IRGRP)
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# define S_IRGRP 0
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#endif
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/* Write group permission */
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#if !defined(S_IWGRP)
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# define S_IWGRP 0
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#endif
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/* Execute group permission */
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#if !defined(S_IXGRP)
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# define S_IXGRP 0
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#endif
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/* Read others permission */
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#if !defined(S_IROTH)
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# define S_IROTH 0
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#endif
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/* Write others permission */
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#if !defined(S_IWOTH)
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# define S_IWOTH 0
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#endif
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/* Execute others permission */
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#if !defined(S_IXOTH)
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# define S_IXOTH 0
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#endif
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/* Maximum length of file name */
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#if !defined(PATH_MAX)
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# define PATH_MAX MAX_PATH
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#endif
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#if !defined(FILENAME_MAX)
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# define FILENAME_MAX MAX_PATH
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#endif
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#if !defined(NAME_MAX)
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# define NAME_MAX FILENAME_MAX
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#endif
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/* File type flags for d_type */
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#define DT_UNKNOWN 0
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#define DT_REG S_IFREG
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#define DT_DIR S_IFDIR
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#define DT_FIFO S_IFIFO
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#define DT_SOCK S_IFSOCK
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#define DT_CHR S_IFCHR
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#define DT_BLK S_IFBLK
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#define DT_LNK S_IFLNK
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/* Macros for converting between st_mode and d_type */
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#define IFTODT(mode) ((mode) & S_IFMT)
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#define DTTOIF(type) (type)
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/*
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* File type macros. Note that block devices, sockets and links cannot be
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* distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are
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* only defined for compatibility. These macros should always return false
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* on Windows.
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*/
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#if !defined(S_ISFIFO)
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# define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
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#endif
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#if !defined(S_ISDIR)
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# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
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#endif
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#if !defined(S_ISREG)
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# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
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#endif
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#if !defined(S_ISLNK)
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# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
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#endif
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#if !defined(S_ISSOCK)
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# define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
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#endif
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#if !defined(S_ISCHR)
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# define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
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#endif
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#if !defined(S_ISBLK)
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# define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
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#endif
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/* Return the exact length of d_namlen without zero terminator */
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#define _D_EXACT_NAMLEN(p) ((p)->d_namlen)
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/* Return number of bytes needed to store d_namlen */
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#define _D_ALLOC_NAMLEN(p) (PATH_MAX)
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Wide-character version */
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struct _wdirent {
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/* Always zero */
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long d_ino;
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/* Structure size */
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unsigned short d_reclen;
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/* Length of name without \0 */
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size_t d_namlen;
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/* File type */
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int d_type;
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/* File name */
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wchar_t d_name[PATH_MAX];
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};
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typedef struct _wdirent _wdirent;
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struct _WDIR {
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/* Current directory entry */
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struct _wdirent ent;
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/* Private file data */
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WIN32_FIND_DATAW data;
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/* True if data is valid */
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int cached;
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/* Win32 search handle */
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HANDLE handle;
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/* Initial directory name */
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wchar_t *patt;
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};
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typedef struct _WDIR _WDIR;
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static _WDIR *_wopendir (const wchar_t *dirname);
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static struct _wdirent *_wreaddir (_WDIR *dirp);
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static int _wclosedir (_WDIR *dirp);
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static void _wrewinddir (_WDIR* dirp);
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/* For compatibility with Symbian */
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#define wdirent _wdirent
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#define WDIR _WDIR
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#define wopendir _wopendir
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#define wreaddir _wreaddir
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#define wclosedir _wclosedir
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#define wrewinddir _wrewinddir
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/* Multi-byte character versions */
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struct dirent {
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/* Always zero */
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long d_ino;
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/* Structure size */
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unsigned short d_reclen;
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/* Length of name without \0 */
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size_t d_namlen;
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/* File type */
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int d_type;
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/* File name */
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char d_name[PATH_MAX];
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};
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typedef struct dirent dirent;
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struct DIR {
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struct dirent ent;
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struct _WDIR *wdirp;
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};
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typedef struct DIR DIR;
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static DIR *opendir (const char *dirname);
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static struct dirent *readdir (DIR *dirp);
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static int closedir (DIR *dirp);
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static void rewinddir (DIR* dirp);
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/* Internal utility functions */
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static WIN32_FIND_DATAW *dirent_first (_WDIR *dirp);
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static WIN32_FIND_DATAW *dirent_next (_WDIR *dirp);
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static int dirent_mbstowcs_s(
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size_t *pReturnValue,
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wchar_t *wcstr,
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size_t sizeInWords,
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const char *mbstr,
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size_t count);
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static int dirent_wcstombs_s(
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size_t *pReturnValue,
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char *mbstr,
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size_t sizeInBytes,
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const wchar_t *wcstr,
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size_t count);
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static void dirent_set_errno (int error);
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/*
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* Open directory stream DIRNAME for read and return a pointer to the
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* internal working area that is used to retrieve individual directory
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* entries.
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*/
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static _WDIR*
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_wopendir(
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const wchar_t *dirname)
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{
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_WDIR *dirp = NULL;
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int error;
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/* Must have directory name */
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if (dirname == NULL || dirname[0] == '\0') {
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dirent_set_errno (ENOENT);
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return NULL;
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}
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/* Allocate new _WDIR structure */
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dirp = (_WDIR*) malloc (sizeof (struct _WDIR));
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if (dirp != NULL) {
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DWORD n;
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/* Reset _WDIR structure */
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dirp->handle = INVALID_HANDLE_VALUE;
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dirp->patt = NULL;
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dirp->cached = 0;
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/* Compute the length of full path plus zero terminator
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*
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* Note that on WinRT there's no way to convert relative paths
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* into absolute paths, so just assume its an absolute path.
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*/
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# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP)
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n = wcslen(dirname);
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# else
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n = GetFullPathNameW (dirname, 0, NULL, NULL);
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# endif
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/* Allocate room for absolute directory name and search pattern */
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dirp->patt = (wchar_t*) malloc (sizeof (wchar_t) * n + 16);
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if (dirp->patt) {
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/*
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* Convert relative directory name to an absolute one. This
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* allows rewinddir() to function correctly even when current
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* working directory is changed between opendir() and rewinddir().
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*
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* Note that on WinRT there's no way to convert relative paths
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* into absolute paths, so just assume its an absolute path.
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*/
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# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP)
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wcsncpy_s(dirp->patt, n+1, dirname, n);
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# else
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n = GetFullPathNameW (dirname, n, dirp->patt, NULL);
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# endif
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if (n > 0) {
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wchar_t *p;
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/* Append search pattern \* to the directory name */
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p = dirp->patt + n;
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if (dirp->patt < p) {
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switch (p[-1]) {
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case '\\':
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case '/':
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case ':':
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/* Directory ends in path separator, e.g. c:\temp\ */
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/*NOP*/;
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break;
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default:
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/* Directory name doesn't end in path separator */
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*p++ = '\\';
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}
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}
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*p++ = '*';
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*p = '\0';
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/* Open directory stream and retrieve the first entry */
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if (dirent_first (dirp)) {
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/* Directory stream opened successfully */
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error = 0;
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} else {
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/* Cannot retrieve first entry */
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error = 1;
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dirent_set_errno (ENOENT);
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}
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} else {
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/* Cannot retrieve full path name */
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dirent_set_errno (ENOENT);
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error = 1;
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}
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} else {
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/* Cannot allocate memory for search pattern */
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error = 1;
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}
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} else {
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/* Cannot allocate _WDIR structure */
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error = 1;
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}
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/* Clean up in case of error */
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if (error && dirp) {
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_wclosedir (dirp);
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dirp = NULL;
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}
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return dirp;
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}
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/*
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* Read next directory entry. The directory entry is returned in dirent
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* structure in the d_name field. Individual directory entries returned by
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* this function include regular files, sub-directories, pseudo-directories
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* "." and ".." as well as volume labels, hidden files and system files.
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*/
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static struct _wdirent*
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_wreaddir(
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_WDIR *dirp)
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{
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WIN32_FIND_DATAW *datap;
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struct _wdirent *entp;
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/* Read next directory entry */
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datap = dirent_next (dirp);
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if (datap) {
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size_t n;
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DWORD attr;
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/* Pointer to directory entry to return */
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entp = &dirp->ent;
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/*
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* Copy file name as wide-character string. If the file name is too
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* long to fit in to the destination buffer, then truncate file name
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* to PATH_MAX characters and zero-terminate the buffer.
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*/
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n = 0;
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while (n + 1 < PATH_MAX && datap->cFileName[n] != 0) {
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entp->d_name[n] = datap->cFileName[n];
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n++;
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}
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dirp->ent.d_name[n] = 0;
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/* Length of file name excluding zero terminator */
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entp->d_namlen = n;
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/* File type */
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attr = datap->dwFileAttributes;
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if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
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entp->d_type = DT_CHR;
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} else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
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entp->d_type = DT_DIR;
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} else {
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entp->d_type = DT_REG;
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}
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/* Reset dummy fields */
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entp->d_ino = 0;
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entp->d_reclen = sizeof (struct _wdirent);
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} else {
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/* Last directory entry read */
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entp = NULL;
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}
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return entp;
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}
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/*
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* Close directory stream opened by opendir() function. This invalidates the
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* DIR structure as well as any directory entry read previously by
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* _wreaddir().
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*/
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static int
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_wclosedir(
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_WDIR *dirp)
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{
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int ok;
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if (dirp) {
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/* Release search handle */
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if (dirp->handle != INVALID_HANDLE_VALUE) {
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FindClose (dirp->handle);
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dirp->handle = INVALID_HANDLE_VALUE;
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}
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/* Release search pattern */
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if (dirp->patt) {
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free (dirp->patt);
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dirp->patt = NULL;
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}
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/* Release directory structure */
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free (dirp);
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ok = /*success*/0;
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} else {
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/* Invalid directory stream */
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dirent_set_errno (EBADF);
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ok = /*failure*/-1;
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}
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return ok;
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}
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/*
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* Rewind directory stream such that _wreaddir() returns the very first
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* file name again.
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*/
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static void
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_wrewinddir(
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_WDIR* dirp)
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{
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if (dirp) {
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/* Release existing search handle */
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if (dirp->handle != INVALID_HANDLE_VALUE) {
|
||||
FindClose (dirp->handle);
|
||||
}
|
||||
|
||||
/* Open new search handle */
|
||||
dirent_first (dirp);
|
||||
}
|
||||
}
|
||||
|
||||
/* Get first directory entry (internal) */
|
||||
static WIN32_FIND_DATAW*
|
||||
dirent_first(
|
||||
_WDIR *dirp)
|
||||
{
|
||||
WIN32_FIND_DATAW *datap;
|
||||
|
||||
/* Open directory and retrieve the first entry */
|
||||
dirp->handle = FindFirstFileExW(
|
||||
dirp->patt, FindExInfoStandard, &dirp->data,
|
||||
FindExSearchNameMatch, NULL, 0);
|
||||
if (dirp->handle != INVALID_HANDLE_VALUE) {
|
||||
|
||||
/* a directory entry is now waiting in memory */
|
||||
datap = &dirp->data;
|
||||
dirp->cached = 1;
|
||||
|
||||
} else {
|
||||
|
||||
/* Failed to re-open directory: no directory entry in memory */
|
||||
dirp->cached = 0;
|
||||
datap = NULL;
|
||||
|
||||
}
|
||||
return datap;
|
||||
}
|
||||
|
||||
/* Get next directory entry (internal) */
|
||||
static WIN32_FIND_DATAW*
|
||||
dirent_next(
|
||||
_WDIR *dirp)
|
||||
{
|
||||
WIN32_FIND_DATAW *p;
|
||||
|
||||
/* Get next directory entry */
|
||||
if (dirp->cached != 0) {
|
||||
|
||||
/* A valid directory entry already in memory */
|
||||
p = &dirp->data;
|
||||
dirp->cached = 0;
|
||||
|
||||
} else if (dirp->handle != INVALID_HANDLE_VALUE) {
|
||||
|
||||
/* Get the next directory entry from stream */
|
||||
if (FindNextFileW (dirp->handle, &dirp->data) != FALSE) {
|
||||
/* Got a file */
|
||||
p = &dirp->data;
|
||||
} else {
|
||||
/* The very last entry has been processed or an error occured */
|
||||
FindClose (dirp->handle);
|
||||
dirp->handle = INVALID_HANDLE_VALUE;
|
||||
p = NULL;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
/* End of directory stream reached */
|
||||
p = NULL;
|
||||
|
||||
}
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
/*
|
||||
* Open directory stream using plain old C-string.
|
||||
*/
|
||||
static DIR*
|
||||
opendir(
|
||||
const char *dirname)
|
||||
{
|
||||
struct DIR *dirp;
|
||||
int error;
|
||||
|
||||
/* Must have directory name */
|
||||
if (dirname == NULL || dirname[0] == '\0') {
|
||||
dirent_set_errno (ENOENT);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Allocate memory for DIR structure */
|
||||
dirp = (DIR*) malloc (sizeof (struct DIR));
|
||||
if (dirp) {
|
||||
wchar_t wname[PATH_MAX];
|
||||
size_t n;
|
||||
|
||||
/* Convert directory name to wide-character string */
|
||||
error = dirent_mbstowcs_s (&n, wname, PATH_MAX, dirname, PATH_MAX);
|
||||
if (!error) {
|
||||
|
||||
/* Open directory stream using wide-character name */
|
||||
dirp->wdirp = _wopendir (wname);
|
||||
if (dirp->wdirp) {
|
||||
/* Directory stream opened */
|
||||
error = 0;
|
||||
} else {
|
||||
/* Failed to open directory stream */
|
||||
error = 1;
|
||||
}
|
||||
|
||||
} else {
|
||||
/*
|
||||
* Cannot convert file name to wide-character string. This
|
||||
* occurs if the string contains invalid multi-byte sequences or
|
||||
* the output buffer is too small to contain the resulting
|
||||
* string.
|
||||
*/
|
||||
error = 1;
|
||||
}
|
||||
|
||||
} else {
|
||||
/* Cannot allocate DIR structure */
|
||||
error = 1;
|
||||
}
|
||||
|
||||
/* Clean up in case of error */
|
||||
if (error && dirp) {
|
||||
free (dirp);
|
||||
dirp = NULL;
|
||||
}
|
||||
|
||||
return dirp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Read next directory entry.
|
||||
*
|
||||
* When working with text consoles, please note that file names returned by
|
||||
* readdir() are represented in the default ANSI code page while any output to
|
||||
* console is typically formatted on another code page. Thus, non-ASCII
|
||||
* characters in file names will not usually display correctly on console. The
|
||||
* problem can be fixed in two ways: (1) change the character set of console
|
||||
* to 1252 using chcp utility and use Lucida Console font, or (2) use
|
||||
* _cprintf function when writing to console. The _cprinf() will re-encode
|
||||
* ANSI strings to the console code page so many non-ASCII characters will
|
||||
* display correcly.
|
||||
*/
|
||||
static struct dirent*
|
||||
readdir(
|
||||
DIR *dirp)
|
||||
{
|
||||
WIN32_FIND_DATAW *datap;
|
||||
struct dirent *entp;
|
||||
|
||||
/* Read next directory entry */
|
||||
datap = dirent_next (dirp->wdirp);
|
||||
if (datap) {
|
||||
size_t n;
|
||||
int error;
|
||||
|
||||
/* Attempt to convert file name to multi-byte string */
|
||||
error = dirent_wcstombs_s(
|
||||
&n, dirp->ent.d_name, PATH_MAX, datap->cFileName, PATH_MAX);
|
||||
|
||||
/*
|
||||
* If the file name cannot be represented by a multi-byte string,
|
||||
* then attempt to use old 8+3 file name. This allows traditional
|
||||
* Unix-code to access some file names despite of unicode
|
||||
* characters, although file names may seem unfamiliar to the user.
|
||||
*
|
||||
* Be ware that the code below cannot come up with a short file
|
||||
* name unless the file system provides one. At least
|
||||
* VirtualBox shared folders fail to do this.
|
||||
*/
|
||||
if (error && datap->cAlternateFileName[0] != '\0') {
|
||||
error = dirent_wcstombs_s(
|
||||
&n, dirp->ent.d_name, PATH_MAX,
|
||||
datap->cAlternateFileName, PATH_MAX);
|
||||
}
|
||||
|
||||
if (!error) {
|
||||
DWORD attr;
|
||||
|
||||
/* Initialize directory entry for return */
|
||||
entp = &dirp->ent;
|
||||
|
||||
/* Length of file name excluding zero terminator */
|
||||
entp->d_namlen = n - 1;
|
||||
|
||||
/* File attributes */
|
||||
attr = datap->dwFileAttributes;
|
||||
if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
|
||||
entp->d_type = DT_CHR;
|
||||
} else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
|
||||
entp->d_type = DT_DIR;
|
||||
} else {
|
||||
entp->d_type = DT_REG;
|
||||
}
|
||||
|
||||
/* Reset dummy fields */
|
||||
entp->d_ino = 0;
|
||||
entp->d_reclen = sizeof (struct dirent);
|
||||
|
||||
} else {
|
||||
/*
|
||||
* Cannot convert file name to multi-byte string so construct
|
||||
* an errornous directory entry and return that. Note that
|
||||
* we cannot return NULL as that would stop the processing
|
||||
* of directory entries completely.
|
||||
*/
|
||||
entp = &dirp->ent;
|
||||
entp->d_name[0] = '?';
|
||||
entp->d_name[1] = '\0';
|
||||
entp->d_namlen = 1;
|
||||
entp->d_type = DT_UNKNOWN;
|
||||
entp->d_ino = 0;
|
||||
entp->d_reclen = 0;
|
||||
}
|
||||
|
||||
} else {
|
||||
/* No more directory entries */
|
||||
entp = NULL;
|
||||
}
|
||||
|
||||
return entp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Close directory stream.
|
||||
*/
|
||||
static int
|
||||
closedir(
|
||||
DIR *dirp)
|
||||
{
|
||||
int ok;
|
||||
if (dirp) {
|
||||
|
||||
/* Close wide-character directory stream */
|
||||
ok = _wclosedir (dirp->wdirp);
|
||||
dirp->wdirp = NULL;
|
||||
|
||||
/* Release multi-byte character version */
|
||||
free (dirp);
|
||||
|
||||
} else {
|
||||
|
||||
/* Invalid directory stream */
|
||||
dirent_set_errno (EBADF);
|
||||
ok = /*failure*/-1;
|
||||
|
||||
}
|
||||
return ok;
|
||||
}
|
||||
|
||||
/*
|
||||
* Rewind directory stream to beginning.
|
||||
*/
|
||||
static void
|
||||
rewinddir(
|
||||
DIR* dirp)
|
||||
{
|
||||
/* Rewind wide-character string directory stream */
|
||||
_wrewinddir (dirp->wdirp);
|
||||
}
|
||||
|
||||
/* Convert multi-byte string to wide character string */
|
||||
static int
|
||||
dirent_mbstowcs_s(
|
||||
size_t *pReturnValue,
|
||||
wchar_t *wcstr,
|
||||
size_t sizeInWords,
|
||||
const char *mbstr,
|
||||
size_t count)
|
||||
{
|
||||
int error;
|
||||
|
||||
#if defined(_MSC_VER) && _MSC_VER >= 1400
|
||||
|
||||
/* Microsoft Visual Studio 2005 or later */
|
||||
error = mbstowcs_s (pReturnValue, wcstr, sizeInWords, mbstr, count);
|
||||
|
||||
#else
|
||||
|
||||
/* Older Visual Studio or non-Microsoft compiler */
|
||||
size_t n;
|
||||
|
||||
/* Convert to wide-character string (or count characters) */
|
||||
n = mbstowcs (wcstr, mbstr, sizeInWords);
|
||||
if (!wcstr || n < count) {
|
||||
|
||||
/* Zero-terminate output buffer */
|
||||
if (wcstr && sizeInWords) {
|
||||
if (n >= sizeInWords) {
|
||||
n = sizeInWords - 1;
|
||||
}
|
||||
wcstr[n] = 0;
|
||||
}
|
||||
|
||||
/* Length of resuting multi-byte string WITH zero terminator */
|
||||
if (pReturnValue) {
|
||||
*pReturnValue = n + 1;
|
||||
}
|
||||
|
||||
/* Success */
|
||||
error = 0;
|
||||
|
||||
} else {
|
||||
|
||||
/* Could not convert string */
|
||||
error = 1;
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
/* Convert wide-character string to multi-byte string */
|
||||
static int
|
||||
dirent_wcstombs_s(
|
||||
size_t *pReturnValue,
|
||||
char *mbstr,
|
||||
size_t sizeInBytes, /* max size of mbstr */
|
||||
const wchar_t *wcstr,
|
||||
size_t count)
|
||||
{
|
||||
int error;
|
||||
|
||||
#if defined(_MSC_VER) && _MSC_VER >= 1400
|
||||
|
||||
/* Microsoft Visual Studio 2005 or later */
|
||||
error = wcstombs_s (pReturnValue, mbstr, sizeInBytes, wcstr, count);
|
||||
|
||||
#else
|
||||
|
||||
/* Older Visual Studio or non-Microsoft compiler */
|
||||
size_t n;
|
||||
|
||||
/* Convert to multi-byte string (or count the number of bytes needed) */
|
||||
n = wcstombs (mbstr, wcstr, sizeInBytes);
|
||||
if (!mbstr || n < count) {
|
||||
|
||||
/* Zero-terminate output buffer */
|
||||
if (mbstr && sizeInBytes) {
|
||||
if (n >= sizeInBytes) {
|
||||
n = sizeInBytes - 1;
|
||||
}
|
||||
mbstr[n] = '\0';
|
||||
}
|
||||
|
||||
/* Length of resulting multi-bytes string WITH zero-terminator */
|
||||
if (pReturnValue) {
|
||||
*pReturnValue = n + 1;
|
||||
}
|
||||
|
||||
/* Success */
|
||||
error = 0;
|
||||
|
||||
} else {
|
||||
|
||||
/* Cannot convert string */
|
||||
error = 1;
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
/* Set errno variable */
|
||||
static void
|
||||
dirent_set_errno(
|
||||
int error)
|
||||
{
|
||||
#if defined(_MSC_VER) && _MSC_VER >= 1400
|
||||
|
||||
/* Microsoft Visual Studio 2005 and later */
|
||||
_set_errno (error);
|
||||
|
||||
#else
|
||||
|
||||
/* Non-Microsoft compiler or older Microsoft compiler */
|
||||
errno = error;
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif /*DIRENT_H*/
|
||||
|
||||
Loading…
Reference in New Issue