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68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
/* $Id: write.c,v 1.4 2002/05/17 01:54:39 hyperion Exp $
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*/
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS POSIX+ Subsystem
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* FILE: subsys/psx/lib/psxdll/unistd/write.c
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* PURPOSE: Write on a file
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* PROGRAMMER: KJK::Hyperion <noog@libero.it>
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* UPDATE HISTORY:
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* 15/02/2002: Created
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* 21/03/2002: Implemented write() (KJK::Hyperion <noog@libero.it>)
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*/
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#include <ddk/ntddk.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <psx/debug.h>
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#include <psx/errno.h>
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#include <psx/fdtable.h>
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ssize_t write(int fildes, const void *buf, size_t nbyte)
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{
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__fildes_t fdDescriptor;
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NTSTATUS nErrCode;
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IO_STATUS_BLOCK isbStatus;
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if(nbyte == 0)
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return (0);
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if(fcntl(fildes, F_GETALL, &fdDescriptor) == -1)
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{
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ERR("fcntl() failed, errno %d", errno);
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return (0);
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}
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if((fdDescriptor.OpenFlags && O_APPEND) == O_APPEND)
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{
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TODO("move file pointer to the end");
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}
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INFO("handle for descriptor %d is %d", fildes, fdDescriptor.FileHandle);
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nErrCode = NtWriteFile
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(
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fdDescriptor.FileHandle,
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NULL,
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NULL,
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NULL,
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&isbStatus,
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(PVOID)buf,
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nbyte,
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NULL,
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NULL
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);
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if(!NT_SUCCESS(nErrCode))
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{
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ERR("NtWriteFile() failed with status 0x%08X", nErrCode);
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errno = __status_to_errno(nErrCode);
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return (0);
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}
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return (isbStatus.Information);
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}
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/* EOF */
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