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42 lines
833 B
C
42 lines
833 B
C
/* $Id: getppid.c,v 1.2 2002/02/20 09:17:58 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/getppid.c
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* PURPOSE: Get the parent process ID
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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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*/
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#include <ddk/ntddk.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <psx/errno.h>
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pid_t getppid(void)
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{
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PROCESS_BASIC_INFORMATION pbiInfo;
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NTSTATUS nErrCode;
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nErrCode = NtQueryInformationProcess
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(
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NtCurrentProcess(),
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ProcessBasicInformation,
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&pbiInfo,
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sizeof(pbiInfo),
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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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errno = __status_to_errno(nErrCode);
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return (0);
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}
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return (pbiInfo.InheritedFromUniqueProcessId);
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}
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/* EOF */
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