mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 10:04:49 +00:00
68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
/* $Id: write.c,v 1.6 2002/10/29 04:45:48 rex Exp $
|
|
*/
|
|
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS POSIX+ Subsystem
|
|
* FILE: subsys/psx/lib/psxdll/unistd/write.c
|
|
* PURPOSE: Write on a file
|
|
* PROGRAMMER: KJK::Hyperion <noog@libero.it>
|
|
* UPDATE HISTORY:
|
|
* 15/02/2002: Created
|
|
* 21/03/2002: Implemented write() (KJK::Hyperion <noog@libero.it>)
|
|
*/
|
|
|
|
#include <ddk/ntddk.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <psx/debug.h>
|
|
#include <psx/errno.h>
|
|
#include <psx/fdtable.h>
|
|
|
|
ssize_t write(int fildes, const void *buf, size_t nbyte)
|
|
{
|
|
__fildes_t fdDescriptor;
|
|
NTSTATUS nErrCode;
|
|
IO_STATUS_BLOCK isbStatus;
|
|
|
|
if(nbyte == 0)
|
|
return (0);
|
|
|
|
if(fcntl(fildes, F_GETALL, &fdDescriptor) == -1)
|
|
{
|
|
ERR("fcntl() failed, errno %d", errno);
|
|
return (0);
|
|
}
|
|
|
|
if((fdDescriptor.OpenFlags && O_APPEND) == O_APPEND)
|
|
{
|
|
TODO("move file pointer to the end");
|
|
}
|
|
|
|
INFO("handle for descriptor %d is %d", fildes, fdDescriptor.FileHandle);
|
|
|
|
nErrCode = NtWriteFile
|
|
(
|
|
fdDescriptor.FileHandle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&isbStatus,
|
|
(PVOID)buf,
|
|
nbyte,
|
|
NULL,
|
|
NULL
|
|
);
|
|
|
|
if(!NT_SUCCESS(nErrCode))
|
|
{
|
|
ERR("NtWriteFile() failed with status 0x%08X", nErrCode);
|
|
errno = __status_to_errno(nErrCode);
|
|
return (0);
|
|
}
|
|
|
|
return (isbStatus.Information);
|
|
}
|
|
|
|
/* EOF */
|
|
|