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89 lines
2.3 KiB
Python
89 lines
2.3 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2007-2009 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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import errno
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import os
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import sys
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import time
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from lib.core.settings import IS_WIN
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if not IS_WIN:
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import fcntl
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if (sys.hexversion >> 16) >= 0x202:
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FCNTL = fcntl
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else:
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import FCNTL
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def blockingReadFromFD(fd):
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# Quick twist around original Twisted function
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# Blocking read from a non-blocking file descriptor
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output = ""
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while True:
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try:
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output += os.read(fd, 8192)
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except (OSError, IOError), ioe:
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if ioe.args[0] in (errno.EAGAIN, errno.EINTR):
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# Uncomment the following line if the process seems to
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# take a huge amount of cpu time
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# time.sleep(0.01)
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continue
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else:
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raise
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break
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if not output:
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raise EOFError, "fd %s has been closed." % fd
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return output
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def blockingWriteToFD(fd, data):
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# Another quick twist
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while True:
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try:
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data_length = len(data)
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wrote_data = os.write(fd, data)
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except (OSError, IOError), io:
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if io.errno in (errno.EAGAIN, errno.EINTR):
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continue
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else:
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raise
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if wrote_data < data_length:
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blockingWriteToFD(fd, data[wrote_data:])
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break
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def setNonBlocking(fd):
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"""
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Make a file descriptor non-blocking
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"""
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if IS_WIN is not True:
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flags = fcntl.fcntl(fd, FCNTL.F_GETFL)
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flags = flags | os.O_NONBLOCK
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fcntl.fcntl(fd, FCNTL.F_SETFL, flags)
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