| from ctypes import * |
| import sys, unittest |
| import os |
| from ctypes.util import find_library |
| from ctypes.test import is_resource_enabled |
| |
| libc_name = None |
| if os.name == "nt": |
| libc_name = find_library("c") |
| elif os.name == "ce": |
| libc_name = "coredll" |
| elif sys.platform == "cygwin": |
| libc_name = "cygwin1.dll" |
| else: |
| libc_name = find_library("c") |
| |
| if is_resource_enabled("printing"): |
| print "libc_name is", libc_name |
| |
| class LoaderTest(unittest.TestCase): |
| |
| unknowndll = "xxrandomnamexx" |
| |
| if libc_name is not None: |
| def test_load(self): |
| CDLL(libc_name) |
| CDLL(os.path.basename(libc_name)) |
| self.assertRaises(OSError, CDLL, self.unknowndll) |
| |
| if libc_name is not None and os.path.basename(libc_name) == "libc.so.6": |
| def test_load_version(self): |
| cdll.LoadLibrary("libc.so.6") |
| # linux uses version, libc 9 should not exist |
| self.assertRaises(OSError, cdll.LoadLibrary, "libc.so.9") |
| self.assertRaises(OSError, cdll.LoadLibrary, self.unknowndll) |
| |
| def test_find(self): |
| for name in ("c", "m"): |
| lib = find_library(name) |
| if lib: |
| cdll.LoadLibrary(lib) |
| CDLL(lib) |
| |
| if os.name in ("nt", "ce"): |
| def test_load_library(self): |
| self.assertFalse(libc_name is None) |
| if is_resource_enabled("printing"): |
| print find_library("kernel32") |
| print find_library("user32") |
| |
| if os.name == "nt": |
| windll.kernel32.GetModuleHandleW |
| windll["kernel32"].GetModuleHandleW |
| windll.LoadLibrary("kernel32").GetModuleHandleW |
| WinDLL("kernel32").GetModuleHandleW |
| elif os.name == "ce": |
| windll.coredll.GetModuleHandleW |
| windll["coredll"].GetModuleHandleW |
| windll.LoadLibrary("coredll").GetModuleHandleW |
| WinDLL("coredll").GetModuleHandleW |
| |
| def test_load_ordinal_functions(self): |
| import _ctypes_test |
| dll = WinDLL(_ctypes_test.__file__) |
| # We load the same function both via ordinal and name |
| func_ord = dll[2] |
| func_name = dll.GetString |
| # addressof gets the address where the function pointer is stored |
| a_ord = addressof(func_ord) |
| a_name = addressof(func_name) |
| f_ord_addr = c_void_p.from_address(a_ord).value |
| f_name_addr = c_void_p.from_address(a_name).value |
| self.assertEqual(hex(f_ord_addr), hex(f_name_addr)) |
| |
| self.assertRaises(AttributeError, dll.__getitem__, 1234) |
| |
| if os.name == "nt": |
| def test_1703286_A(self): |
| from _ctypes import LoadLibrary, FreeLibrary |
| # On winXP 64-bit, advapi32 loads at an address that does |
| # NOT fit into a 32-bit integer. FreeLibrary must be able |
| # to accept this address. |
| |
| # These are tests for http://www.python.org/sf/1703286 |
| handle = LoadLibrary("advapi32") |
| FreeLibrary(handle) |
| |
| def test_1703286_B(self): |
| # Since on winXP 64-bit advapi32 loads like described |
| # above, the (arbitrarily selected) CloseEventLog function |
| # also has a high address. 'call_function' should accept |
| # addresses so large. |
| from _ctypes import call_function |
| advapi32 = windll.advapi32 |
| # Calling CloseEventLog with a NULL argument should fail, |
| # but the call should not segfault or so. |
| self.assertEqual(0, advapi32.CloseEventLog(None)) |
| windll.kernel32.GetProcAddress.argtypes = c_void_p, c_char_p |
| windll.kernel32.GetProcAddress.restype = c_void_p |
| proc = windll.kernel32.GetProcAddress(advapi32._handle, "CloseEventLog") |
| self.assertTrue(proc) |
| # This is the real test: call the function via 'call_function' |
| self.assertEqual(0, call_function(proc, (None,))) |
| |
| if __name__ == "__main__": |
| unittest.main() |