mirror of
https://github.com/mirror/processhacker
synced 2026-06-08 16:03:24 +00:00
wj32
7fd92d6f36
* fixed KphQueryNameFileObject git-svn-id: svn://svn.code.sf.net/p/processhacker/code@1638 21ef857c-d57f-4fe0-8362-d861dc6d29cd
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/*
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* Process Hacker Driver -
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* utility functions
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*
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* Copyright (C) 2009 wj32
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*
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* This file is part of Process Hacker.
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*
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* Process Hacker is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Process Hacker is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Process Hacker. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _UTIL_H
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#define _UTIL_H
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#include "kph.h"
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/* Streams
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*
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* Streams are small buffer management structures. They
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* automatically raise an exception if the buffer is overrun.
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*/
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typedef struct _KPH_STREAM
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{
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PVOID Buffer;
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ULONG Length;
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ULONG Position;
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} KPH_STREAM, *PKPH_STREAM;
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typedef enum _KPH_STREAM_ORIGIN
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{
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StartOrigin,
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CurrentOrigin,
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EndOrigin
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} KPH_STREAM_ORIGIN;
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VOID KphInitializeStream(
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__out PKPH_STREAM Stream,
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__in PVOID Buffer,
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__in ULONG Length
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);
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ULONG KphWriteDataStream(
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__inout PKPH_STREAM Stream,
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__in PVOID Data,
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__in ULONG Length
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);
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/* KphCheckStreamPosition
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*
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* Checks a stream position and raises an exception if
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* appropriate.
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*/
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FORCEINLINE VOID KphCheckStreamPosition(
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__in PKPH_STREAM Stream,
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__in ULONG Position
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)
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{
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if (Position > Stream->Length)
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ExRaiseStatus(STATUS_BUFFER_TOO_SMALL);
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}
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/* KphPositionStream
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*
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* Gets the current position of the specified stream.
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*/
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FORCEINLINE ULONG KphPositionStream(
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__in PKPH_STREAM Stream
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)
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{
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return Stream->Position;
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}
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/* KphWriteInt8Stream
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*
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* Writes a 1-byte value to a stream.
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*/
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FORCEINLINE VOID KphWriteInt8Stream(
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__inout PKPH_STREAM Stream,
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__in BOOLEAN Value
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)
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{
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KphWriteDataStream(Stream, &Value, sizeof(BOOLEAN));
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}
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/* KphWriteInt16Stream
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*
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* Writes a 2-byte value to a stream.
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*/
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FORCEINLINE VOID KphWriteInt16Stream(
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__inout PKPH_STREAM Stream,
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__in SHORT Value
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)
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{
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KphWriteDataStream(Stream, &Value, sizeof(SHORT));
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}
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/* KphWriteInt32Stream
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*
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* Writes a 4-byte value to a stream.
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*/
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FORCEINLINE VOID KphWriteInt32Stream(
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__inout PKPH_STREAM Stream,
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__in LONG Value
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)
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{
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KphWriteDataStream(Stream, &Value, sizeof(LONG));
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}
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/* KphWriteInt64Stream
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*
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* Writes a 8-byte value to a stream.
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*/
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FORCEINLINE VOID KphWriteInt64Stream(
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__inout PKPH_STREAM Stream,
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__in PLARGE_INTEGER Value
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)
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{
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KphWriteDataStream(Stream, Value, sizeof(LARGE_INTEGER));
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}
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#endif
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