Issue #17269: Workaround for a platform bug in getaddrinfo on OSX
Without this patch socket.getaddrinfo crashed when called
with some unusual argument combinations.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 9200002..679143c 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -5041,6 +5041,15 @@
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;