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99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/********************************************************************************
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* libemu
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*
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* - x86 shellcode emulation -
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*
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*
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* Copyright (C) 2007 Paul Baecher & Markus Koetter
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*
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* contact nepenthesdev@users.sourceforge.net
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*
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*******************************************************************************/
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#ifndef HAVE_EMU_QUEUE_H
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#define HAVE_EMU_QUEUE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct emu_queue_item
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{
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struct emu_queue_item *next;
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void *data;
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};
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struct emu_queue_item *emu_queue_item_new();
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void emu_queue_item_free(struct emu_queue_item *eqi);
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struct emu_queue
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{
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struct emu_queue_item *front;
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struct emu_queue_item *back;
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};
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/**
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* Create a new queue
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*
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* @return on success: pointer to the new queue
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* on failure: NULL
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*/
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struct emu_queue *emu_queue_new();
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void emu_queue_free(struct emu_queue *eq);
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/**
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* Retrieve the pointer to the first element
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*
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* @param eq the queue
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*
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* @return returns the pointer to the first element
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*/
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void *emu_queue_front(struct emu_queue *eq);
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/**
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* Enqueue data into the queue.
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*
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* @param eq the queue
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* @param data the data to enqueue
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*/
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void emu_queue_enqueue(struct emu_queue *eq, void *data);
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/**
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* Dequeue the first element from the queue
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*
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* @param eq the queue
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*
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* @return pointer to the data of the first element
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*/
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void *emu_queue_dequeue(struct emu_queue *eq);
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/**
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* Check if the queue is empty
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*
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* @param eq the queue
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*
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* @return true if the queue is empty, else false
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*/
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bool emu_queue_empty(struct emu_queue *eq);
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#ifdef __cplusplus
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}
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#endif
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#endif
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