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#!/usr/bin/env python
'''
PEXPECT LICENSE
This license is approved by the OSI and FSF as GPL-compatible.
http://opensource.org/licenses/isc-license.txt
Copyright (c) 2012, Noah Spurrier <noah@noah.org>
PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
'''
import time
import unittest
from ptyprocess import PtyProcess, PtyProcessUnicode
import errno
import os
import stat
import tempfile
class InvalidBinaryChars(unittest.TestCase):
def test_invalid_binary(self):
'''This tests that we correctly handle the case where we attempt to
spawn a child process but the exec call fails'''
# Create a file that should fail the exec call
dirpath = tempfile.mkdtemp()
fullpath = os.path.join(dirpath, "test")
with open(fullpath, 'wb') as f:
# Add some constant so it will never be executable
# - Not 0x54AD (Windows PE)
# - Not 0x7FEF (ELF)
# - Not 0410 or 0413 (a.out)
# - Not 0x2321 (script)
file_start = b'\x00\x00'
file_data = file_start + os.urandom(1022)
f.write(file_data)
# Make it executable
st = os.stat(fullpath)
os.chmod(fullpath, st.st_mode | stat.S_IEXEC)
# TODO Verify this does what is intended on Windows
try:
child = PtyProcess.spawn([fullpath])
# If we get here then an OSError was not raised
child.close()
raise AssertionError("OSError was not raised")
except OSError as err:
if errno.ENOEXEC == err.errno:
# This is what should happen
pass
else:
# Re-raise the original error to fail the test
raise
finally:
os.unlink(fullpath)
os.rmdir(dirpath)
if __name__ == '__main__':
unittest.main()
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