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problem with CVS...

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svn path=/trunk/; revision=2750
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KJK::Hyperion 2002-03-21 22:40:48 +00:00
parent 82e00a0128
commit ecf734386e
1 changed files with 0 additions and 209 deletions
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209
posix/lib/psxdll/dirent/readdir.c
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@ -1,209 +0,0 @@
/* $Id: readdir.c,v 1.3 2002/03/21 22:38:13 hyperion Exp $
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS POSIX+ Subsystem
* FILE: subsys/psx/lib/psxdll/dirent/readdir.c
* PURPOSE: Read directory
* PROGRAMMER: KJK::Hyperion <noog@libero.it>
* UPDATE HISTORY:
* 27/01/2002: Created
* 13/02/2002: KJK::Hyperion: modified to use file descriptors
*/
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stddef.h>
#include <dirent.h>
#include <psx/dirent.h>
#include <psx/debug.h>
#include <psx/errno.h>
#include <psx/safeobj.h>
#include <ddk/ntddk.h>
struct dirent *readdir(DIR *dirp)
{
struct _Wdirent *lpwdReturn;
struct __internal_DIR *pidData;
ANSI_STRING strFileName;
UNICODE_STRING wstrFileName;
NTSTATUS nErrCode;
/* call Unicode function */
lpwdReturn = _Wreaddir(dirp);
/* failure */
if(lpwdReturn == 0)
return (0);
/* get the internal data object */
pidData = ((struct __internal_DIR *)dirp);
/* create NT Unicode string from the Unicode dirent's buffer */
RtlInitUnicodeString(&wstrFileName, pidData->ent.de_unicode.d_name);
/* HACK: make the ANSI string point to the same buffer where the Unicode string is stored */
strFileName.Buffer = (PCSZ)&pidData->info.FileName[0];
strFileName.Length = 0;
strFileName.MaximumLength = MAX_PATH;
/* convert the filename to ANSI */
nErrCode = RtlUnicodeStringToAnsiString(&strFileName, &wstrFileName, FALSE);
/* failure */
if(!NT_SUCCESS(nErrCode))
{
errno = __status_to_errno(nErrCode);
return (0);
}
/* make the ANSI dirent filename point to the ANSI buffer */
pidData->ent.de_ansi.d_name = strFileName.Buffer;
/* null-terminate the ANSI name */
pidData->ent.de_ansi.d_name[strFileName.Length] = 0;
/* success */
return (&(pidData->ent.de_ansi));
}
int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
{
errno = ENOSYS;
return (0);
}
struct _Wdirent *_Wreaddir(DIR *dirp)
{
HANDLE hFile;
HANDLE hDir;
OBJECT_ATTRIBUTES oaFileAttribs;
UNICODE_STRING wstrFileName;
FILE_INTERNAL_INFORMATION fiiInfo;
IO_STATUS_BLOCK isbStatus;
NTSTATUS nErrCode;
struct __internal_DIR *pidData;
/* check the "magic" signature */
if(!__safeobj_validate(dirp, __IDIR_MAGIC))
{
errno = EINVAL;
return (0);
}
/* get internal data */
pidData = (struct __internal_DIR *)dirp;
/* get handle */
hDir = (HANDLE)fcntl(pidData->fildes, F_GETFH);
/* failure */
if(((int)hDir) == -1)
return (0);
/* read next directory entry */
nErrCode = NtQueryDirectoryFile
(
hDir,
NULL,
NULL,
NULL,
&isbStatus,
(PVOID)&pidData->info,
sizeof(pidData->info) + sizeof(WCHAR) * (MAX_PATH - 1),
FileDirectoryInformation,
TRUE,
NULL,
FALSE
);
/* failure or EOF */
if(!NT_SUCCESS(nErrCode))
{
if(nErrCode == (NTSTATUS)STATUS_NO_MORE_FILES)
return (0);
else
{
ERR("NtQueryDirectoryFile() failed with status 0x%08X", nErrCode);
errno = __status_to_errno(nErrCode);
return (0);
}
}
/* null-terminate the filename, just in case */
pidData->info.FileName[pidData->info.FileNameLength / sizeof(WCHAR)] = 0;
INFO("this entry: %ls", pidData->info.FileName);
/* file inodes are not returned by NtQueryDirectoryFile, we have to open every file */
/* set file's object attributes */
wstrFileName.Length = pidData->info.FileNameLength;
wstrFileName.MaximumLength = sizeof(WCHAR) * MAX_PATH;
wstrFileName.Buffer = &pidData->info.FileName[0];
oaFileAttribs.Length = sizeof(OBJECT_ATTRIBUTES);
oaFileAttribs.RootDirectory = hDir;
oaFileAttribs.ObjectName = &wstrFileName;
oaFileAttribs.Attributes = 0;
oaFileAttribs.SecurityDescriptor = NULL;
oaFileAttribs.SecurityQualityOfService = NULL;
/* open the file */
nErrCode = NtOpenFile
(
&hFile,
FILE_READ_ATTRIBUTES | SYNCHRONIZE,
&oaFileAttribs,
&isbStatus,
0,
FILE_SYNCHRONOUS_IO_NONALERT
);
/* failure */
if(!NT_SUCCESS(nErrCode))
{
ERR("NtOpenFile() failed with status %#X", nErrCode);
errno = __status_to_errno(nErrCode);
return (0);
}
/* get the internal information for the file */
nErrCode = NtQueryInformationFile
(
hFile,
&isbStatus,
&fiiInfo,
sizeof(FILE_INTERNAL_INFORMATION),
FileInternalInformation
);
/* close the handle (not needed anymore) */
NtClose(hFile);
/* failure */
if(!NT_SUCCESS(nErrCode))
{
ERR("NtQueryInformationFile() failed with status %#X", nErrCode);
errno = __status_to_errno(nErrCode);
return (0);
}
/* return file inode */
pidData->ent.de_unicode.d_ino = (ino_t)fiiInfo.IndexNumber.QuadPart;
/* return file name */
pidData->ent.de_unicode.d_name = &pidData->info.FileName[0];
/* success */
return &(pidData->ent.de_unicode);
}
int _Wreaddir_r(DIR *dirp, struct _Wdirent *entry, struct _Wdirent **result)
{
errno = ENOSYS;
return (0);
}
/* EOF */