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efl/legacy/evil/win32/common/dirent.c

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/* /////////////////////////////////////////////////////////////////////////////
* File: dirent.c
*
* Purpose: Definition of the opendir() API functions for the Win32 platform.
*
* Created: 19th October 2002
* Updated: 16th February 2008
*
* Home: http://synesis.com.au/software/
*
* Copyright (c) 2002-2008, Matthew Wilson and Synesis Software
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - 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.
* - Neither the names of Matthew Wilson and Synesis Software nor the names of
* any contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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 UNIXEM_DOCUMENTATION_SKIP_SECTION
# define _SYNSOFT_VER_C_DIRENT_MAJOR 2
# define _SYNSOFT_VER_C_DIRENT_MINOR 2
# define _SYNSOFT_VER_C_DIRENT_REVISION 5
# define _SYNSOFT_VER_C_DIRENT_EDIT 33
#endif /* !UNIXEM_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////////
* Includes
*/
#include "dirent.h"
//#include <unixem/unixem.h>
#include <errno.h>
#include <stdlib.h>
#include <windows.h>
/* /////////////////////////////////////////////////////////////////////////////
* Compiler differences
*/
#if defined(__BORLANDC__)
# define UNIXEM_opendir_PROVIDED_BY_COMPILER
#elif defined(__DMC__)
# define UNIXEM_opendir_PROVIDED_BY_COMPILER
#elif defined(__GNUC__)
# define UNIXEM_opendir_PROVIDED_BY_COMPILER
#elif defined(__INTEL_COMPILER)
#elif defined(_MSC_VER)
#elif defined(__MWERKS__)
#elif defined(__WATCOMC__)
#else
# error Compiler not discriminated
#endif /* compiler */
#if defined(UNIXEM_opendir_PROVIDED_BY_COMPILER) && \
!defined(UNIXEM_FORCE_ANY_COMPILER)
# error The opendir() API is provided by this compiler, so should not be built here
#endif /* !UNIXEM_opendir_PROVIDED_BY_COMPILER */
/* /////////////////////////////////////////////////////////////////////////////
* Constants and definitions
*/
#ifndef FILE_ATTRIBUTE_ERROR
# define FILE_ATTRIBUTE_ERROR (0xFFFFFFFF)
#endif /* FILE_ATTRIBUTE_ERROR */
/* /////////////////////////////////////////////////////////////////////////////
* Typedefs
*/
struct dirent_dir
{
char directory[_MAX_DIR + 1]; /* . */
WIN32_FIND_DATAA find_data; /* The Win32 FindFile data. */
HANDLE hFind; /* The Win32 FindFile handle. */
struct dirent dirent; /* The handle's entry. */
};
struct wdirent_dir
{
wchar_t directory[_MAX_DIR + 1]; /* . */
WIN32_FIND_DATAW find_data; /* The Win32 FindFile data. */
HANDLE hFind; /* The Win32 FindFile handle. */
struct wdirent dirent; /* The handle's entry. */
};
/* /////////////////////////////////////////////////////////////////////////////
* Helper functions
*/
static HANDLE unixem__dirent__findfile_directory(char const *name, LPWIN32_FIND_DATAA data)
{
char search_spec[_MAX_PATH +1];
/* Simply add the *.*, ensuring the path separator is
* included.
*/
(void)lstrcpyA(search_spec, name);
if( '\\' != search_spec[lstrlenA(search_spec) - 1] &&
'/' != search_spec[lstrlenA(search_spec) - 1])
{
(void)lstrcatA(search_spec, "\\*.*");
}
else
{
(void)lstrcatA(search_spec, "*.*");
}
return FindFirstFileA(search_spec, data);
}
#if 0
static HANDLE unixem__dirent__wfindfile_directory(wchar_t const *name, LPWIN32_FIND_DATAW data)
{
wchar_t search_spec[_MAX_PATH +1];
/* Simply add the *.*, ensuring the path separator is
* included.
*/
lstrcpyW(search_spec, name);
if( L'\\' != search_spec[lstrlenW(search_spec) - 1] &&
L'/' != search_spec[lstrlenW(search_spec) - 1])
{
lstrcatW(search_spec, L"\\*.*");
}
else
{
lstrcatW(search_spec, L"*.*");
}
return FindFirstFileW(search_spec, data);
}
#endif /* 0 */
/* /////////////////////////////////////////////////////////////////////////////
* API functions
*/
DIR *opendir(char const *name)
{
DIR *result = NULL;
DWORD dwAttr;
/* Must be a valid name */
if( !name ||
!*name ||
(dwAttr = GetFileAttributesA(name)) == 0xFFFFFFFF)
{
errno = ENOENT;
}
/* Must be a directory */
else if(!(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
{
errno = ENOTDIR;
}
else
{
result = (DIR*)malloc(sizeof(DIR));
if(result == NULL)
{
errno = ENOMEM;
}
else
{
result->hFind = unixem__dirent__findfile_directory(name, &result->find_data);
if(result->hFind == INVALID_HANDLE_VALUE)
{
free(result);
result = NULL;
}
else
{
/* Save the directory, in case of rewind. */
(void)lstrcpyA(result->directory, name);
(void)lstrcpyA(result->dirent.d_name, result->find_data.cFileName);
result->dirent.d_mode = (int)result->find_data.dwFileAttributes;
}
}
}
#if 0
if(NULL != dir)
{
struct dirent *readdir(DIR *dir)
}
#endif /* 0 */
return result;
}
int closedir(DIR *dir)
{
int ret;
if(dir == NULL)
{
errno = EBADF;
ret = -1;
}
else
{
/* Close the search handle, if not already done. */
if(dir->hFind != INVALID_HANDLE_VALUE)
{
(void)FindClose(dir->hFind);
}
free(dir);
ret = 0;
}
return ret;
}
void rewinddir(DIR *dir)
{
/* Close the search handle, if not already done. */
if(dir->hFind != INVALID_HANDLE_VALUE)
{
(void)FindClose(dir->hFind);
}
dir->hFind = unixem__dirent__findfile_directory(dir->directory, &dir->find_data);
if(dir->hFind != INVALID_HANDLE_VALUE)
{
(void)lstrcpyA(dir->dirent.d_name, dir->find_data.cFileName);
}
}
struct dirent *readdir(DIR *dir)
{
/* The last find exhausted the matches, so return NULL. */
if(dir->hFind == INVALID_HANDLE_VALUE)
{
if(FILE_ATTRIBUTE_ERROR == dir->find_data.dwFileAttributes)
{
errno = EBADF;
}
else
{
dir->find_data.dwFileAttributes = FILE_ATTRIBUTE_ERROR;
}
return NULL;
}
else
{
/* Copy the result of the last successful match to
* dirent.
*/
(void)lstrcpyA(dir->dirent.d_name, dir->find_data.cFileName);
/* Attempt the next match. */
if(!FindNextFileA(dir->hFind, &dir->find_data))
{
/* Exhausted all matches, so close and null the
* handle.
*/
(void)FindClose(dir->hFind);
dir->hFind = INVALID_HANDLE_VALUE;
}
return &dir->dirent;
}
}
/* ////////////////////////////////////////////////////////////////////////// */
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