commit c44f70770bf629469a5a179b643e53dfeca884ad
author Victor Stinner <victor.stinner@gmail.com> Mon Mar 14 18:07:53 2016 +0100
committer Victor Stinner <victor.stinner@gmail.com> Mon Mar 14 18:07:53 2016 +0100
tree 27e18bf327ba065183dae3a9011d7745e1dacc61
parent 371977976595836b553969ad8b1630114f894062

posix_getcwd(): limit to INT_MAX on Windows

It's more to fix a conversion warning during compilation, I don't think that
Windows support current working directory larger than 2 GB ...

Modules/posixmodule.c

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 6e0081d..7e89878 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -3320,12 +3320,22 @@
     Py_BEGIN_ALLOW_THREADS
     do {
         buflen += chunk;
+#ifdef MS_WINDOWS
+        if (buflen > INT_MAX) {
+            PyErr_NoMemory();
+            break;
+        }
+#endif
         tmpbuf = PyMem_RawRealloc(buf, buflen);
         if (tmpbuf == NULL)
             break;
 
         buf = tmpbuf;
+#ifdef MS_WINDOWS
+        cwd = getcwd(buf, (int)buflen);
+#else
         cwd = getcwd(buf, buflen);
+#endif
     } while (cwd == NULL && errno == ERANGE);
     Py_END_ALLOW_THREADS