diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py index 546d7930912..a2de398c80d 100644 --- a/Lib/test/test_socket.py +++ b/Lib/test/test_socket.py @@ -1201,6 +1201,9 @@ class GeneralModuleTests(unittest.TestCase): # Issue #6697. self.assertRaises(UnicodeEncodeError, socket.getaddrinfo, 'localhost', '\uD800') + # Issue 17269 + socket.getaddrinfo("localhost", None, 0, 0, 0, socket.AI_NUMERICSERV) + def test_getnameinfo(self): # only IP addresses are allowed self.assertRaises(OSError, socket.getnameinfo, ('mail.python.org',0), 0) diff --git a/Misc/NEWS b/Misc/NEWS index de8b8cea391..7a4ac3fba4c 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -96,6 +96,9 @@ Core and Builtins Library ------- +- Issue #17269: Workaround for socket.getaddrinfo crash on MacOS X + with port None or "0" and flags AI_NUMERICSERV. + - Issue #16986: ElementTree now correctly parses a string input not only when an internal XML encoding is UTF-8 or US-ASCII. diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c index fa75a102f24..846d6595948 100644 --- a/Modules/socketmodule.c +++ b/Modules/socketmodule.c @@ -4978,6 +4978,15 @@ socket_getaddrinfo(PyObject *self, PyObject *args, PyObject* kwargs) PyErr_SetString(PyExc_OSError, "Int or String expected"); goto err; } +#ifdef __APPLE__ + if ((flags & AI_NUMERICSERV) && (pptr == NULL || (pptr[0] == '0' && pptr[1] == 0))) { + /* On OSX upto at least OSX 10.8 getaddrinfo crashes + * if AI_NUMERICSERV is set and the servname is NULL or "0". + * This workaround avoids a segfault in libsystem. + */ + pptr = "00"; + } +#endif memset(&hints, 0, sizeof(hints)); hints.ai_family = family; hints.ai_socktype = socktype;