/*
* Copyright ( c ) 1995 , 2003 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation . Oracle designates this
* particular file as subject to the " Classpath " exception as provided
* by Oracle in the LICENSE file that accompanied this code .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* Posix - compatible directory access routines
*/
#include <windows.h>
#include <direct.h> /* For _getdrive() */
#include <errno.h>
#include <assert.h>
#include "dirent_md.h"
/* Caller must have already run dirname through JVM_NativePath, which removes
duplicate slashes and converts all instances of '/' into '\\'. */
DIR *
opendir(const char *dirname)
{
DIR *dirp = (DIR *)malloc(sizeof (DIR));
DWORD fattr;
char alt_dirname[4 ] = { 0 , 0 , 0 , 0 };
if (dirp == 0 ) {
errno = ENOMEM;
return 0 ;
}
/*
* Win32 accepts " \ " in its POSIX stat ( ) , but refuses to treat it
* as a directory in FindFirstFile ( ) . We detect this case here and
* prepend the current drive name .
*/
if (dirname[1 ] == '\0' && dirname[0 ] == '\\' ) {
alt_dirname[0 ] = _getdrive() + 'A' - 1 ;
alt_dirname[1 ] = ':' ;
alt_dirname[2 ] = '\\' ;
alt_dirname[3 ] = '\0' ;
dirname = alt_dirname;
}
dirp->path = (char *)malloc(strlen(dirname) + 5 );
if (dirp->path == 0 ) {
free(dirp);
errno = ENOMEM;
return 0 ;
}
strcpy(dirp->path, dirname);
fattr = GetFileAttributes(dirp->path);
if (fattr == ((DWORD)-1 )) {
free(dirp->path);
free(dirp);
errno = ENOENT;
return 0 ;
} else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0 ) {
free(dirp->path);
free(dirp);
errno = ENOTDIR;
return 0 ;
}
/* Append "*.*", or possibly "\\*.*", to path */
if (dirp->path[1 ] == ':'
&& (dirp->path[2 ] == '\0'
|| (dirp->path[2 ] == '\\' && dirp->path[3 ] == '\0' ))) {
/* No '\\' needed for cases like "Z:" or "Z:\" */
strcat(dirp->path, "*.*" );
} else {
strcat(dirp->path, "\\*.*" );
}
dirp->handle = FindFirstFile(dirp->path, &dirp->find_data);
if (dirp->handle == INVALID_HANDLE_VALUE) {
if (GetLastError() != ERROR_FILE_NOT_FOUND) {
free(dirp->path);
free(dirp);
errno = EACCES;
return 0 ;
}
}
return dirp;
}
struct dirent *
readdir(DIR *dirp)
{
if (dirp->handle == INVALID_HANDLE_VALUE) {
return 0 ;
}
strcpy(dirp->dirent.d_name, dirp->find_data.cFileName);
if (!FindNextFile(dirp->handle, &dirp->find_data)) {
if (GetLastError() == ERROR_INVALID_HANDLE) {
errno = EBADF;
return 0 ;
}
FindClose(dirp->handle);
dirp->handle = INVALID_HANDLE_VALUE;
}
return &dirp->dirent;
}
int
closedir(DIR *dirp)
{
if (dirp->handle != INVALID_HANDLE_VALUE) {
if (!FindClose(dirp->handle)) {
errno = EBADF;
return -1 ;
}
dirp->handle = INVALID_HANDLE_VALUE;
}
free(dirp->path);
free(dirp);
return 0 ;
}
void
rewinddir(DIR *dirp)
{
if (dirp->handle != INVALID_HANDLE_VALUE) {
FindClose(dirp->handle);
}
dirp->handle = FindFirstFile(dirp->path, &dirp->find_data);
}
Messung V0.5 in Prozent C=96 H=100 G=97
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