-/*
- * dirent.h - dirent API for Microsoft Visual Studio
- *
- * Copyright (C) 2006-2012 Toni Ronkko
- * Modified by Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * ``Software''), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL TONI RONKKO BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * $Id: dirent.h,v 1.20 2014/03/19 17:52:23 tronkko Exp $
- */
-#ifndef __cpPlugins__dirent__h__
-#define __cpPlugins__dirent__h__
-
-// florez-l: use this file in windows environments
-#if defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
-
-/*
- * Define architecture flags so we don't need to include windows.h.
- * Avoiding windows.h makes it simpler to use windows sockets in conjunction
- * with dirent.h.
- */
-#if !defined(_68K_) && !defined(_MPPC_) && !defined(_X86_) && !defined(_IA64_) && !defined(_AMD64_) && defined(_M_IX86)
-# define _X86_
-#endif
-#if !defined(_68K_) && !defined(_MPPC_) && !defined(_X86_) && !defined(_IA64_) && !defined(_AMD64_) && defined(_M_AMD64)
-#define _AMD64_
-#endif
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <windef.h>
-#include <winbase.h>
-#include <wchar.h>
-#include <string.h>
-#include <stdlib.h>
-#include <malloc.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-
-/* Indicates that d_type field is available in dirent structure */
-#define ___cpPlugins__dirent__h__AVE_D_TYPE
-
-/* Indicates that d_namlen field is available in dirent structure */
-#define ___cpPlugins__dirent__h__AVE_D_NAMLEN
-
-/* Entries missing from MSVC 6.0 */
-#if !defined(FILE_ATTRIBUTE_DEVICE)
-# define FILE_ATTRIBUTE_DEVICE 0x40
-#endif
-
-/* File type and permission flags for stat() */
-#if !defined(S_IFMT)
-# define S_IFMT _S_IFMT /* File type mask */
-#endif
-#if !defined(S_IFDIR)
-# define S_IFDIR _S_IFDIR /* Directory */
-#endif
-#if !defined(S_IFCHR)
-# define S_IFCHR _S_IFCHR /* Character device */
-#endif
-#if !defined(S_IFFIFO)
-# define S_IFFIFO _S_IFFIFO /* Pipe */
-#endif
-#if !defined(S_IFREG)
-# define S_IFREG _S_IFREG /* Regular file */
-#endif
-#if !defined(S_IREAD)
-# define S_IREAD _S_IREAD /* Read permission */
-#endif
-#if !defined(S_IWRITE)
-# define S_IWRITE _S_IWRITE /* Write permission */
-#endif
-#if !defined(S_IEXEC)
-# define S_IEXEC _S_IEXEC /* Execute permission */
-#endif
-#if !defined(S_IFIFO)
-# define S_IFIFO _S_IFIFO /* Pipe */
-#endif
-#if !defined(S_IFBLK)
-# define S_IFBLK 0 /* Block device */
-#endif
-#if !defined(S_IFLNK)
-# define S_IFLNK 0 /* Link */
-#endif
-#if !defined(S_IFSOCK)
-# define S_IFSOCK 0 /* Socket */
-#endif
-
-#if defined(_MSC_VER)
-# define S_IRUSR S_IREAD /* Read user */
-# define S_IWUSR S_IWRITE /* Write user */
-# define S_IXUSR 0 /* Execute user */
-# define S_IRGRP 0 /* Read group */
-# define S_IWGRP 0 /* Write group */
-# define S_IXGRP 0 /* Execute group */
-# define S_IROTH 0 /* Read others */
-# define S_IWOTH 0 /* Write others */
-# define S_IXOTH 0 /* Execute others */
-#endif
-
-/* Maximum length of file name */
-#if !defined(PATH_MAX)
-# define PATH_MAX MAX_PATH
-#endif
-#if !defined(FILENAME_MAX)
-# define FILENAME_MAX MAX_PATH
-#endif
-#if !defined(NAME_MAX)
-# define NAME_MAX FILENAME_MAX
-#endif
-
-/* File type flags for d_type */
-#define DT_UNKNOWN 0
-#define DT_REG S_IFREG
-#define DT_DIR S_IFDIR
-#define DT_FIFO S_IFIFO
-#define DT_SOCK S_IFSOCK
-#define DT_CHR S_IFCHR
-#define DT_BLK S_IFBLK
-#define DT_LNK S_IFLNK
-
-/* Macros for converting between st_mode and d_type */
-#define IFTODT(mode) ((mode) & S_IFMT)
-#define DTTOIF(type) (type)
-
-/*
- * File type macros. Note that block devices, sockets and links cannot be
- * distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are
- * only defined for compatibility. These macros should always return false
- * on Windows.
- */
-#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
-#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
-#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
-#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
-#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
-#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
-#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
-
-/* Return the exact length of d_namlen without zero terminator */
-#define _D_EXACT_NAMLEN(p) ((p)->d_namlen)
-
-/* Return number of bytes needed to store d_namlen */
-#define _D_ALLOC_NAMLEN(p) (PATH_MAX)
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Wide-character version */
-struct _wdirent {
- long d_ino; /* Always zero */
- unsigned short d_reclen; /* Structure size */
- size_t d_namlen; /* Length of name without \0 */
- int d_type; /* File type */
- wchar_t d_name[PATH_MAX]; /* File name */
-};
-typedef struct _wdirent _wdirent;
-
-struct _WDIR {
- struct _wdirent ent; /* Current directory entry */
- WIN32_FIND_DATAW data; /* Private file data */
- int cached; /* True if data is valid */
- HANDLE handle; /* Win32 search handle */
- wchar_t *patt; /* Initial directory name */
-};
-typedef struct _WDIR _WDIR;
-
-static _WDIR *_wopendir (const wchar_t *dirname);
-static struct _wdirent *_wreaddir (_WDIR *dirp);
-static int _wclosedir (_WDIR *dirp);
-static void _wrewinddir (_WDIR* dirp);
-
-
-/* For compatibility with Symbian */
-#define wdirent _wdirent
-#define WDIR _WDIR
-#define wopendir _wopendir
-#define wreaddir _wreaddir
-#define wclosedir _wclosedir
-#define wrewinddir _wrewinddir
-
-
-/* Multi-byte character versions */
-struct dirent {
- long d_ino; /* Always zero */
- unsigned short d_reclen; /* Structure size */
- size_t d_namlen; /* Length of name without \0 */
- int d_type; /* File type */
- char d_name[PATH_MAX]; /* File name */
-};
-typedef struct dirent dirent;
-
-struct DIR {
- struct dirent ent;
- struct _WDIR *wdirp;
-};
-typedef struct DIR DIR;
-
-static DIR *opendir (const char *dirname);
-static struct dirent *readdir (DIR *dirp);
-static int closedir (DIR *dirp);
-static void rewinddir (DIR* dirp);
-
-
-/* Internal utility functions */
-static WIN32_FIND_DATAW *dirent_first (_WDIR *dirp);
-static WIN32_FIND_DATAW *dirent_next (_WDIR *dirp);
-
-static int dirent_mbstowcs_s(
- size_t *pReturnValue,
- wchar_t *wcstr,
- size_t sizeInWords,
- const char *mbstr,
- size_t count);
-
-static int dirent_wcstombs_s(
- size_t *pReturnValue,
- char *mbstr,
- size_t sizeInBytes,
- const wchar_t *wcstr,
- size_t count);
-
-static void dirent_set_errno (int error);
-
-/*
- * Open directory stream DIRNAME for read and return a pointer to the
- * internal working area that is used to retrieve individual directory
- * entries.
- */
-static _WDIR*
-_wopendir(
- const wchar_t *dirname)
-{
- _WDIR *dirp = NULL;
- int error;
-
- /* Must have directory name */
- if (dirname == NULL || dirname[0] == '\0') {
- dirent_set_errno (ENOENT);
- return NULL;
- }
-
- /* Allocate new _WDIR structure */
- dirp = (_WDIR*) malloc (sizeof (struct _WDIR));
- if (dirp != NULL) {
- DWORD n;
-
- /* Reset _WDIR structure */
- dirp->handle = INVALID_HANDLE_VALUE;
- dirp->patt = NULL;
- dirp->cached = 0;
-
- /* Compute the length of full path plus zero terminator */
- n = GetFullPathNameW (dirname, 0, NULL, NULL);
-
- /* Allocate room for absolute directory name and search pattern */
- dirp->patt = (wchar_t*) malloc (sizeof (wchar_t) * n + 16);
- if (dirp->patt) {
-
- /*
- * Convert relative directory name to an absolute one. This
- * allows rewinddir() to function correctly even when current
- * working directory is changed between opendir() and rewinddir().
- */
- n = GetFullPathNameW (dirname, n, dirp->patt, NULL);
- if (n > 0) {
- wchar_t *p;
-
- /* Append search pattern \* to the directory name */
- p = dirp->patt + n;
- if (dirp->patt < p) {
- switch (p[-1]) {
- case '\\':
- case '/':
- case ':':
- /* Directory ends in path separator, e.g. c:\temp\ */
- /*NOP*/;
- break;
-
- default:
- /* Directory name doesn't end in path separator */
- *p++ = '\\';
- }
- }
- *p++ = '*';
- *p = '\0';
-
- /* Open directory stream and retrieve the first entry */
- if (dirent_first (dirp)) {
- /* Directory stream opened successfully */
- error = 0;
- } else {
- /* Cannot retrieve first entry */
- error = 1;
- dirent_set_errno (ENOENT);
- }
-
- } else {
- /* Cannot retrieve full path name */
- dirent_set_errno (ENOENT);
- error = 1;
- }
-
- } else {
- /* Cannot allocate memory for search pattern */
- error = 1;
- }
-
- } else {
- /* Cannot allocate _WDIR structure */
- error = 1;
- }
-
- /* Clean up in case of error */
- if (error && dirp) {
- _wclosedir (dirp);
- dirp = NULL;
- }
-
- return dirp;
-}
-
-/*
- * Read next directory entry. The directory entry is returned in dirent
- * structure in the d_name field. Individual directory entries returned by
- * this function include regular files, sub-directories, pseudo-directories
- * "." and ".." as well as volume labels, hidden files and system files.
- */
-static struct _wdirent*
-_wreaddir(
- _WDIR *dirp)
-{
- WIN32_FIND_DATAW *datap;
- struct _wdirent *entp;
-
- /* Read next directory entry */
- datap = dirent_next (dirp);
- if (datap) {
- size_t n;
- DWORD attr;
-
- /* Pointer to directory entry to return */
- entp = &dirp->ent;
-
- /*
- * Copy file name as wide-character string. If the file name is too
- * long to fit in to the destination buffer, then truncate file name
- * to PATH_MAX characters and zero-terminate the buffer.
- */
- n = 0;
- while (n + 1 < PATH_MAX && datap->cFileName[n] != 0) {
- entp->d_name[n] = datap->cFileName[n];
- n++;
- }
- dirp->ent.d_name[n] = 0;
-
- /* Length of file name excluding zero terminator */
- entp->d_namlen = n;
-
- /* File type */
- 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 _wdirent);
-
- } else {
-
- /* Last directory entry read */
- entp = NULL;
-
- }
-
- return entp;
-}
-
-/*
- * Close directory stream opened by opendir() function. This invalidates the
- * DIR structure as well as any directory entry read previously by
- * _wreaddir().
- */
-static int
-_wclosedir(
- _WDIR *dirp)
-{
- int ok;
- if (dirp) {
-
- /* Release search handle */
- if (dirp->handle != INVALID_HANDLE_VALUE) {
- FindClose (dirp->handle);
- dirp->handle = INVALID_HANDLE_VALUE;
- }
-
- /* Release search pattern */
- if (dirp->patt) {
- free (dirp->patt);
- dirp->patt = NULL;
- }
-
- /* Release directory structure */
- free (dirp);
- ok = /*success*/0;
-
- } else {
- /* Invalid directory stream */
- dirent_set_errno (EBADF);
- ok = /*failure*/-1;
- }
- return ok;
-}
-
-/*
- * Rewind directory stream such that _wreaddir() returns the very first
- * file name again.
- */
-static void
-_wrewinddir(
- _WDIR* dirp)
-{
- if (dirp) {
- /* Release existing search handle */
- 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 = FindFirstFileW (dirp->patt, &dirp->data);
- 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';
- }
-
- /* Lenght 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
-
-// florez-l: use the standard linux header
-#else // defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
-# include <sys/types.h>
-# include <dirent.h>
-#endif // defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
-
-#endif /*__cpPlugins__dirent__h__*/
-