mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 10:04:49 +00:00
100 lines
2 KiB
C
100 lines
2 KiB
C
/* $Id: opendir.c,v 1.4 2002/10/29 04:45:28 rex Exp $
|
|
*/
|
|
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS POSIX+ Subsystem
|
|
* FILE: subsys/psx/lib/psxdll/dirent/opendir.c
|
|
* PURPOSE: Open a 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 <dirent.h>
|
|
#include <wchar.h>
|
|
#include <errno.h>
|
|
#include <psx/debug.h>
|
|
#include <psx/stdlib.h>
|
|
#include <psx/dirent.h>
|
|
#include <psx/safeobj.h>
|
|
|
|
DIR *opendir(const char *dirname)
|
|
{
|
|
ANSI_STRING strDirName;
|
|
UNICODE_STRING wstrDirName;
|
|
DIR *pdData;
|
|
|
|
RtlInitAnsiString(&strDirName, (PCSZ)dirname);
|
|
RtlAnsiStringToUnicodeString(&wstrDirName, &strDirName, TRUE);
|
|
|
|
pdData = (DIR *)_Wopendir(wstrDirName.Buffer);
|
|
|
|
RtlFreeUnicodeString(&wstrDirName);
|
|
|
|
return (pdData);
|
|
|
|
}
|
|
|
|
DIR *_Wopendir(const wchar_t *dirname)
|
|
{
|
|
struct __internal_DIR *pidData;
|
|
int nFileNo;
|
|
|
|
/* allocate internal object */
|
|
pidData = __malloc(sizeof(*pidData));
|
|
|
|
/* allocation failed */
|
|
if(pidData == 0)
|
|
{
|
|
errno = ENOMEM;
|
|
return (0);
|
|
}
|
|
|
|
/* open the directory */
|
|
nFileNo = _Wopen(dirname, O_RDONLY | _O_DIRFILE);
|
|
|
|
/* failure */
|
|
if(nFileNo < 0)
|
|
{
|
|
__free(pidData);
|
|
return (0);
|
|
}
|
|
|
|
/* directory file descriptors must be closed on exec() */
|
|
if(fcntl(nFileNo, F_SETFD, FD_CLOEXEC) == -1)
|
|
WARN
|
|
(
|
|
"couldn't set FD_CLOEXEC flag on file number %u, errno %u",
|
|
nFileNo,
|
|
errno
|
|
);
|
|
|
|
/* associate the internal data to the file descriptor */
|
|
if(fcntl(nFileNo, F_SETXP, pidData) == -1)
|
|
WARN
|
|
(
|
|
"couldn't associate the object at 0x%X to the file number %u, errno %u",
|
|
pidData,
|
|
nFileNo,
|
|
errno
|
|
);
|
|
|
|
if(fcntl(nFileNo, F_SETXS, sizeof(*pidData)) == -1)
|
|
WARN
|
|
(
|
|
"couldn't set the extra data size of the file number %u, errno %u",
|
|
nFileNo,
|
|
errno
|
|
);
|
|
|
|
pidData->signature = __IDIR_MAGIC;
|
|
|
|
/* success */
|
|
return ((DIR *)pidData);
|
|
}
|
|
|
|
/* EOF */
|
|
|