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| author | Serhiy Storchaka <storchaka@gmail.com> | 2014-09-11 07:57:13 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2014-09-11 07:57:13 (GMT) |
| commit | abf68ce16474a2d252723099f1c7a6d640191123 (patch) | |
| tree | 1300b07bd551a888966a4d2d77636dc68a540351 /Modules/_tkinter.c | |
| parent | 07940883796e71135723616f06a1405105c09571 (diff) | |
| download | cpython-abf68ce16474a2d252723099f1c7a6d640191123.zip cpython-abf68ce16474a2d252723099f1c7a6d640191123.tar.gz cpython-abf68ce16474a2d252723099f1c7a6d640191123.tar.bz2 | |
Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with
empty string or tuple argument.
On some platforms Tcl memory allocator returns NULL when allocating zero-sized
block of memory.
Diffstat (limited to 'Modules/_tkinter.c')
| -rw-r--r-- | Modules/_tkinter.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c index 7871dec..6d777d3 100644 --- a/Modules/_tkinter.c +++ b/Modules/_tkinter.c @@ -899,6 +899,8 @@ AsObj(PyObject *value) Py_ssize_t size, i; size = PyTuple_Size(value); + if (size == 0) + return Tcl_NewListObj(0, NULL); if (!CHECK_SIZE(size, sizeof(Tcl_Obj *))) { PyErr_SetString(PyExc_OverflowError, "tuple is too long"); return NULL; @@ -925,6 +927,8 @@ AsObj(PyObject *value) inbuf = PyUnicode_DATA(value); size = PyUnicode_GET_LENGTH(value); + if (size == 0) + return Tcl_NewUnicodeObj((const void *)"", 0); if (!CHECK_SIZE(size, sizeof(Tcl_UniChar))) { PyErr_SetString(PyExc_OverflowError, "string is too long"); return NULL; |