def test_repr():
"""Test repr() of instances."""
assert 'c_byte(123)' == repr(c_byte(123))
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_int(1234567890)' == repr(c_int(1234567890))
else:
assert 'c_long(1234567890)' == repr(c_int(1234567890)).replace('L)', ')')
assert 'c_byte(123)' == repr(c_int8(123))
assert 'c_long(1234567890)' == repr(c_long(1234567890)).replace('L)', ')')
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_long(1234567890123456789)' == repr(c_longlong(1234567890123456789)).replace('L)', ')')
else:
assert 'c_longlong(1234567890123456789)' == repr(c_longlong(1234567890123456789)).replace('L)', ')')
assert 'c_ushort(12345)' == repr(c_uint16(12345))
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_uint(1234567890)' == repr(c_uint32(1234567890)).replace('L)', ')')
else:
assert 'c_ulong(1234567890)' == repr(c_uint32(1234567890)).replace('L)', ')')
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_ulong(12345678901234567890)' == repr(c_uint64(12345678901234567890)).replace('L)', ')')
else:
assert 'c_ulonglong(12345678901234567890)' == repr(c_uint64(12345678901234567890)).replace('L)', ')')
assert 'c_ubyte(123)' == repr(c_uint8(123))
assert 'c_ubyte(123)' == repr(c_ubyte(123))
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_uint(1234567890)' == repr(c_uint(1234567890)).replace('L)', ')')
else:
assert 'c_ulong(1234567890)' == repr(c_uint(1234567890)).replace('L)', ')')
assert 'c_ulong(1234567890)' == repr(c_ulong(1234567890)).replace('L)', ')')
if sys.maxsize > 2 ** 32: # 64-bit.
assert 'c_ulong(12345678901234567890)' == repr(c_ulonglong(12345678901234567890)).replace('L)', ')')
else:
assert 'c_ulonglong(12345678901234567890)' == repr(c_ulonglong(12345678901234567890)).replace('L)', ')')
assert 'c_ushort(12345)' == repr(c_ushort(12345))
def test_maximum():
"""Test maximum valid integer value."""
assert 127 == c_byte.from_buffer(bytearray(c_byte(127))).value
assert 2147483647 == c_int.from_buffer(bytearray(c_int(2147483647))).value
assert 127 == c_int8.from_buffer(bytearray(c_int8(127))).value
if sys.maxsize > 2**32: # 64-bit.
assert 9223372036854775807 == c_long.from_buffer(
bytearray(c_long(9223372036854775807))).value
else:
assert 2147483647 == c_long.from_buffer(bytearray(
c_long(2147483647))).value
assert 9223372036854775807 == c_longlong.from_buffer(
bytearray(c_longlong(9223372036854775807))).value
assert 65535 == c_uint16.from_buffer(bytearray(c_uint16(65535))).value
assert 4294967295 == c_uint32.from_buffer(bytearray(
c_uint32(4294967295))).value
assert 18446744073709551615 == c_uint64.from_buffer(
bytearray(c_uint64(18446744073709551615))).value
assert 255 == c_uint8.from_buffer(bytearray(c_uint8(255))).value
assert 255 == c_ubyte.from_buffer(bytearray(c_ubyte(255))).value
assert 4294967295 == c_uint.from_buffer(bytearray(
c_uint(4294967295))).value
if sys.maxsize > 2**32: # 64-bit.
assert 18446744073709551615 == c_ulong.from_buffer(
bytearray(c_ulong(18446744073709551615))).value
else:
assert 4294967295 == c_ulong.from_buffer(bytearray(
c_ulong(4294967295))).value
assert 18446744073709551615 == c_ulonglong.from_buffer(
bytearray(c_ulonglong(18446744073709551615))).value
assert 65535 == c_ushort.from_buffer(bytearray(c_ushort(65535))).value
def test_repr():
"""Test repr() of instances."""
assert 'c_byte(123)' == repr(c_byte(123))
if sys.maxsize > 2**32: # 64-bit.
assert 'c_int(1234567890)' == repr(c_int(1234567890))
else:
assert 'c_long(1234567890)' == repr(c_int(1234567890)).replace(
'L)', ')')
assert 'c_byte(123)' == repr(c_int8(123))
assert 'c_long(1234567890)' == repr(c_long(1234567890)).replace('L)', ')')
if sys.maxsize > 2**32: # 64-bit.
assert 'c_long(1234567890123456789)' == repr(
c_longlong(1234567890123456789)).replace('L)', ')')
else:
assert 'c_longlong(1234567890123456789)' == repr(
c_longlong(1234567890123456789)).replace('L)', ')')
assert 'c_ushort(12345)' == repr(c_uint16(12345))
if sys.maxsize > 2**32: # 64-bit.
assert 'c_uint(1234567890)' == repr(c_uint32(1234567890)).replace(
'L)', ')')
else:
assert 'c_ulong(1234567890)' == repr(c_uint32(1234567890)).replace(
'L)', ')')
if sys.maxsize > 2**32: # 64-bit.
assert 'c_ulong(12345678901234567890)' == repr(
c_uint64(12345678901234567890)).replace('L)', ')')
else:
assert 'c_ulonglong(12345678901234567890)' == repr(
c_uint64(12345678901234567890)).replace('L)', ')')
assert 'c_ubyte(123)' == repr(c_uint8(123))
assert 'c_ubyte(123)' == repr(c_ubyte(123))
if sys.maxsize > 2**32: # 64-bit.
assert 'c_uint(1234567890)' == repr(c_uint(1234567890)).replace(
'L)', ')')
else:
assert 'c_ulong(1234567890)' == repr(c_uint(1234567890)).replace(
'L)', ')')
assert 'c_ulong(1234567890)' == repr(c_ulong(1234567890)).replace(
'L)', ')')
if sys.maxsize > 2**32: # 64-bit.
assert 'c_ulong(12345678901234567890)' == repr(
c_ulonglong(12345678901234567890)).replace('L)', ')')
else:
assert 'c_ulonglong(12345678901234567890)' == repr(
c_ulonglong(12345678901234567890)).replace('L)', ')')
assert 'c_ushort(12345)' == repr(c_ushort(12345))
def nla_put_u32(msg, attrtype, value):
"""Add 32 bit integer attribute to Netlink message.
https://github.com/thom311/libnl/blob/libnl3_2_25/lib/attr.c#L613
Positional arguments:
msg -- Netlink message (nl_msg class instance).
attrtype -- attribute type (integer).
value -- numeric value to store as payload (int() or c_uint32()).
Returns:
0 on success or a negative error code.
"""
data = bytearray(value if isinstance(value, c_uint32) else c_uint32(value))
return nla_put(msg, attrtype, SIZEOF_U32, data)
def nla_put_u32(msg, attrtype, value):
"""Add 32 bit integer attribute to Netlink message.
https://github.com/thom311/libnl/blob/libnl3_2_25/lib/attr.c#L613
Positional arguments:
msg -- Netlink message (nl_msg class instance).
attrtype -- attribute type (integer).
value -- numeric value to store as payload (int() or c_uint32()).
Returns:
0 on success or a negative error code.
"""
data = bytearray(value if isinstance(value, c_uint32) else c_uint32(value))
return nla_put(msg, attrtype, SIZEOF_U32, data)
def test_zero():
"""Test zero integer value."""
assert 0 == c_byte.from_buffer(bytearray(c_byte())).value
assert 0 == c_int.from_buffer(bytearray(c_int())).value
assert 0 == c_int8.from_buffer(bytearray(c_int8())).value
assert 0 == c_long.from_buffer(bytearray(c_long())).value
assert 0 == c_longlong.from_buffer(bytearray(c_longlong())).value
assert 0 == c_uint16.from_buffer(bytearray(c_uint16())).value
assert 0 == c_uint32.from_buffer(bytearray(c_uint32())).value
assert 0 == c_uint64.from_buffer(bytearray(c_uint64())).value
assert 0 == c_uint8.from_buffer(bytearray(c_uint8())).value
assert 0 == c_ubyte.from_buffer(bytearray(c_ubyte())).value
assert 0 == c_uint.from_buffer(bytearray(c_uint())).value
assert 0 == c_ulong.from_buffer(bytearray(c_ulong())).value
assert 0 == c_ulonglong.from_buffer(bytearray(c_ulonglong())).value
assert 0 == c_ushort.from_buffer(bytearray(c_ushort())).value
def test_middle():
"""Test with arbitrary positive value."""
assert 123 == c_byte.from_buffer(bytearray(c_byte(123))).value
assert 1234567890 == c_int.from_buffer(bytearray(c_int(1234567890))).value
assert 123 == c_int8.from_buffer(bytearray(c_int8(123))).value
assert 1234567890 == c_long.from_buffer(bytearray(c_long(1234567890))).value
assert 1234567890123456789 == c_longlong.from_buffer(bytearray(c_longlong(1234567890123456789))).value
assert 12345 == c_uint16.from_buffer(bytearray(c_uint16(12345))).value
assert 1234567890 == c_uint32.from_buffer(bytearray(c_uint32(1234567890))).value
assert 12345678901234567890 == c_uint64.from_buffer(bytearray(c_uint64(12345678901234567890))).value
assert 123 == c_uint8.from_buffer(bytearray(c_uint8(123))).value
assert 123 == c_ubyte.from_buffer(bytearray(c_ubyte(123))).value
assert 1234567890 == c_uint.from_buffer(bytearray(c_uint(1234567890))).value
assert 1234567890 == c_ulong.from_buffer(bytearray(c_ulong(1234567890))).value
assert 12345678901234567890 == c_ulonglong.from_buffer(bytearray(c_ulonglong(12345678901234567890))).value
assert 12345 == c_ushort.from_buffer(bytearray(c_ushort(12345))).value
def test_zero():
"""Test zero integer value."""
assert 0 == c_byte.from_buffer(bytearray(c_byte())).value
assert 0 == c_int.from_buffer(bytearray(c_int())).value
assert 0 == c_int8.from_buffer(bytearray(c_int8())).value
assert 0 == c_long.from_buffer(bytearray(c_long())).value
assert 0 == c_longlong.from_buffer(bytearray(c_longlong())).value
assert 0 == c_uint16.from_buffer(bytearray(c_uint16())).value
assert 0 == c_uint32.from_buffer(bytearray(c_uint32())).value
assert 0 == c_uint64.from_buffer(bytearray(c_uint64())).value
assert 0 == c_uint8.from_buffer(bytearray(c_uint8())).value
assert 0 == c_ubyte.from_buffer(bytearray(c_ubyte())).value
assert 0 == c_uint.from_buffer(bytearray(c_uint())).value
assert 0 == c_ulong.from_buffer(bytearray(c_ulong())).value
assert 0 == c_ulonglong.from_buffer(bytearray(c_ulonglong())).value
assert 0 == c_ushort.from_buffer(bytearray(c_ushort())).value
def test_maximum():
"""Test maximum valid integer value."""
assert 127 == c_byte.from_buffer(bytearray(c_byte(127))).value
assert 2147483647 == c_int.from_buffer(bytearray(c_int(2147483647))).value
assert 127 == c_int8.from_buffer(bytearray(c_int8(127))).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 9223372036854775807 == c_long.from_buffer(bytearray(c_long(9223372036854775807))).value
else:
assert 2147483647 == c_long.from_buffer(bytearray(c_long(2147483647))).value
assert 9223372036854775807 == c_longlong.from_buffer(bytearray(c_longlong(9223372036854775807))).value
assert 65535 == c_uint16.from_buffer(bytearray(c_uint16(65535))).value
assert 4294967295 == c_uint32.from_buffer(bytearray(c_uint32(4294967295))).value
assert 18446744073709551615 == c_uint64.from_buffer(bytearray(c_uint64(18446744073709551615))).value
assert 255 == c_uint8.from_buffer(bytearray(c_uint8(255))).value
assert 255 == c_ubyte.from_buffer(bytearray(c_ubyte(255))).value
assert 4294967295 == c_uint.from_buffer(bytearray(c_uint(4294967295))).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 18446744073709551615 == c_ulong.from_buffer(bytearray(c_ulong(18446744073709551615))).value
else:
assert 4294967295 == c_ulong.from_buffer(bytearray(c_ulong(4294967295))).value
assert 18446744073709551615 == c_ulonglong.from_buffer(bytearray(c_ulonglong(18446744073709551615))).value
assert 65535 == c_ushort.from_buffer(bytearray(c_ushort(65535))).value
def test_maximum_overflow_more():
"""Test positive overflow value with even greater numbers."""
assert -118 == c_byte(138).value
assert -2147482548 == c_int(2147484748).value
assert -118 == c_int8(138).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert -9223372036854775708 == c_long(9223372036854775908).value
else:
assert -2147483548 == c_long(2147483748).value
assert -9223372036854775708 == c_longlong(9223372036854775908).value
assert 100 == c_uint16(65636).value
assert 100 == c_uint32(4294967396).value
assert 100 == c_uint64(18446744073709551716).value
assert 100 == c_uint8(356).value
assert 90 == c_ubyte(346).value
assert 100 == c_uint(4294967396).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 200 == c_ulong(18446744073709551816).value
else:
assert 1000 == c_ulong(4294968296).value
assert 200 == c_ulonglong(18446744073709551816).value
assert 10 == c_ushort(65546).value
def test_maximum_overflow():
"""Test positive overflow value."""
assert -128 == c_byte(128).value
assert -2147483648 == c_int(2147483648).value
assert -128 == c_int8(128).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert -9223372036854775808 == c_long(9223372036854775808).value
else:
assert -2147483648 == c_long(2147483648).value
assert -9223372036854775808 == c_longlong(9223372036854775808).value
assert 0 == c_uint16(65536).value
assert 0 == c_uint32(4294967296).value
assert 0 == c_uint64(18446744073709551616).value
assert 0 == c_uint8(256).value
assert 0 == c_ubyte(256).value
assert 0 == c_uint(4294967296).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 0 == c_ulong(18446744073709551616).value
else:
assert 0 == c_ulong(4294967296).value
assert 0 == c_ulonglong(18446744073709551616).value
assert 0 == c_ushort(65536).value
def test_minimum_overflow():
"""Test negative overflow value."""
assert 127 == c_byte(-129).value
assert 2147483647 == c_int(-2147483649).value
assert 127 == c_int8(-129).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 9223372036854775807 == c_long(-9223372036854775809).value
else:
assert 2147483647 == c_long(-2147483649).value
assert 9223372036854775807 == c_longlong(-9223372036854775809).value
assert 65535 == c_uint16(-1).value
assert 4294967295 == c_uint32(-1).value
assert 18446744073709551615 == c_uint64(-1).value
assert 255 == c_uint8(-1).value
assert 255 == c_ubyte(-1).value
assert 4294967295 == c_uint(-1).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 18446744073709551615 == c_ulong(-1).value
else:
assert 4294967295 == c_ulong(-1).value
assert 18446744073709551615 == c_ulonglong(-1).value
assert 65535 == c_ushort(-1).value
def test_maximum_overflow_more():
"""Test positive overflow value with even greater numbers."""
assert -118 == c_byte(138).value
assert -2147482548 == c_int(2147484748).value
assert -118 == c_int8(138).value
if sys.maxsize > 2**32: # 64-bit.
assert -9223372036854775708 == c_long(9223372036854775908).value
else:
assert -2147483548 == c_long(2147483748).value
assert -9223372036854775708 == c_longlong(9223372036854775908).value
assert 100 == c_uint16(65636).value
assert 100 == c_uint32(4294967396).value
assert 100 == c_uint64(18446744073709551716).value
assert 100 == c_uint8(356).value
assert 90 == c_ubyte(346).value
assert 100 == c_uint(4294967396).value
if sys.maxsize > 2**32: # 64-bit.
assert 200 == c_ulong(18446744073709551816).value
else:
assert 1000 == c_ulong(4294968296).value
assert 200 == c_ulonglong(18446744073709551816).value
assert 10 == c_ushort(65546).value
def test_minimum_overflow_more():
"""Test negative overflow value with even lower numbers."""
assert 27 == c_byte(-229).value
assert 2147383647 == c_int(-2147583649).value
assert 117 == c_int8(-139).value
if sys.maxsize > 2**32: # 64-bit.
assert 9223372036814775807 == c_long(-9223372036894775809).value
else:
assert 2147483647 == c_long(-2147483649).value
assert 9223372033854775807 == c_longlong(-9223372039854775809).value
assert 65524 == c_uint16(-12).value
assert 4294967283 == c_uint32(-13).value
assert 18446744073709551602 == c_uint64(-14).value
assert 241 == c_uint8(-15).value
assert 240 == c_ubyte(-16).value
assert 4294967279 == c_uint(-17).value
if sys.maxsize > 2**32: # 64-bit.
assert 18446744073709551598 == c_ulong(-18).value
else:
assert 4294967277 == c_ulong(-19).value
assert 18446744073709551598 == c_ulonglong(-18).value
assert 65515 == c_ushort(-21).value
def test_maximum_overflow():
"""Test positive overflow value."""
assert -128 == c_byte(128).value
assert -2147483648 == c_int(2147483648).value
assert -128 == c_int8(128).value
if sys.maxsize > 2**32: # 64-bit.
assert -9223372036854775808 == c_long(9223372036854775808).value
else:
assert -2147483648 == c_long(2147483648).value
assert -9223372036854775808 == c_longlong(9223372036854775808).value
assert 0 == c_uint16(65536).value
assert 0 == c_uint32(4294967296).value
assert 0 == c_uint64(18446744073709551616).value
assert 0 == c_uint8(256).value
assert 0 == c_ubyte(256).value
assert 0 == c_uint(4294967296).value
if sys.maxsize > 2**32: # 64-bit.
assert 0 == c_ulong(18446744073709551616).value
else:
assert 0 == c_ulong(4294967296).value
assert 0 == c_ulonglong(18446744073709551616).value
assert 0 == c_ushort(65536).value
def test_minimum_overflow_more():
"""Test negative overflow value with even lower numbers."""
assert 27 == c_byte(-229).value
assert 2147383647 == c_int(-2147583649).value
assert 117 == c_int8(-139).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 9223372036814775807 == c_long(-9223372036894775809).value
else:
assert 2147483647 == c_long(-2147483649).value
assert 9223372033854775807 == c_longlong(-9223372039854775809).value
assert 65524 == c_uint16(-12).value
assert 4294967283 == c_uint32(-13).value
assert 18446744073709551602 == c_uint64(-14).value
assert 241 == c_uint8(-15).value
assert 240 == c_ubyte(-16).value
assert 4294967279 == c_uint(-17).value
if sys.maxsize > 2 ** 32: # 64-bit.
assert 18446744073709551598 == c_ulong(-18).value
else:
assert 4294967277 == c_ulong(-19).value
assert 18446744073709551598 == c_ulonglong(-18).value
assert 65515 == c_ushort(-21).value
def test_minimum_overflow():
"""Test negative overflow value."""
assert 127 == c_byte(-129).value
assert 2147483647 == c_int(-2147483649).value
assert 127 == c_int8(-129).value
if sys.maxsize > 2**32: # 64-bit.
assert 9223372036854775807 == c_long(-9223372036854775809).value
else:
assert 2147483647 == c_long(-2147483649).value
assert 9223372036854775807 == c_longlong(-9223372036854775809).value
assert 65535 == c_uint16(-1).value
assert 4294967295 == c_uint32(-1).value
assert 18446744073709551615 == c_uint64(-1).value
assert 255 == c_uint8(-1).value
assert 255 == c_ubyte(-1).value
assert 4294967295 == c_uint(-1).value
if sys.maxsize > 2**32: # 64-bit.
assert 18446744073709551615 == c_ulong(-1).value
else:
assert 4294967295 == c_ulong(-1).value
assert 18446744073709551615 == c_ulonglong(-1).value
assert 65535 == c_ushort(-1).value
def test_middle():
"""Test with arbitrary positive value."""
assert 123 == c_byte.from_buffer(bytearray(c_byte(123))).value
assert 1234567890 == c_int.from_buffer(bytearray(c_int(1234567890))).value
assert 123 == c_int8.from_buffer(bytearray(c_int8(123))).value
assert 1234567890 == c_long.from_buffer(bytearray(
c_long(1234567890))).value
assert 1234567890123456789 == c_longlong.from_buffer(
bytearray(c_longlong(1234567890123456789))).value
assert 12345 == c_uint16.from_buffer(bytearray(c_uint16(12345))).value
assert 1234567890 == c_uint32.from_buffer(bytearray(
c_uint32(1234567890))).value
assert 12345678901234567890 == c_uint64.from_buffer(
bytearray(c_uint64(12345678901234567890))).value
assert 123 == c_uint8.from_buffer(bytearray(c_uint8(123))).value
assert 123 == c_ubyte.from_buffer(bytearray(c_ubyte(123))).value
assert 1234567890 == c_uint.from_buffer(bytearray(
c_uint(1234567890))).value
assert 1234567890 == c_ulong.from_buffer(bytearray(
c_ulong(1234567890))).value
assert 12345678901234567890 == c_ulonglong.from_buffer(
bytearray(c_ulonglong(12345678901234567890))).value
assert 12345 == c_ushort.from_buffer(bytearray(c_ushort(12345))).value
def nl_groups(self, value):
"""Group setter."""
self.bytearray[self._get_slicers(3)] = bytearray(c_uint32(value or 0))
def nl_groups(self, value):
"""Group setter."""
self.bytearray[self._get_slicers(3)] = bytearray(c_uint32(value or 0))
def nlmsg_len(self, value):
"""Length setter."""
self.bytearray[self._get_slicers(0)] = bytearray(c_uint32(value or 0))
def nlmsg_seq(self, value):
"""Sequence setter."""
self.bytearray[self._get_slicers(3)] = bytearray(c_uint32(value or 0))
def nl_pid(self, value):
"""Port ID setter."""
self.bytearray[self._get_slicers(2)] = bytearray(c_uint32(value or 0))
def nlmsg_seq(self, value):
"""Sequence setter."""
self.bytearray[self._get_slicers(3)] = bytearray(c_uint32(value or 0))
def nlmsg_len(self, value):
"""Length setter."""
self.bytearray[self._get_slicers(0)] = bytearray(c_uint32(value or 0))
def nlmsg_pid(self, value):
"""Port ID setter."""
self.bytearray[self._get_slicers(4)] = bytearray(c_uint32(value or 0))