diff options
| -rw-r--r-- | Misc/NEWS.d/next/Library/2024-05-24-11-47-08.gh-issue-69214.Grl6zF.rst | 3 | ||||
| -rw-r--r-- | Modules/clinic/fcntlmodule.c.h | 11 | ||||
| -rw-r--r-- | Modules/fcntlmodule.c | 6 |
3 files changed, 12 insertions, 8 deletions
diff --git a/Misc/NEWS.d/next/Library/2024-05-24-11-47-08.gh-issue-69214.Grl6zF.rst b/Misc/NEWS.d/next/Library/2024-05-24-11-47-08.gh-issue-69214.Grl6zF.rst new file mode 100644 index 0000000..8c3a36c --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-05-24-11-47-08.gh-issue-69214.Grl6zF.rst @@ -0,0 +1,3 @@ +Fix ``fcntl.ioctl()`` *request* parameter: use an ``unsigned long`` instead of +an ``unsigned int`` for the *request* parameter of :func:`fcntl.ioctl` to +support requests larger than ``UINT_MAX``. Patch by Victor Stinner. diff --git a/Modules/clinic/fcntlmodule.c.h b/Modules/clinic/fcntlmodule.c.h index d4846dd..53b139e 100644 --- a/Modules/clinic/fcntlmodule.c.h +++ b/Modules/clinic/fcntlmodule.c.h @@ -96,7 +96,7 @@ PyDoc_STRVAR(fcntl_ioctl__doc__, {"ioctl", (PyCFunction)(void(*)(void))fcntl_ioctl, METH_FASTCALL, fcntl_ioctl__doc__}, static PyObject * -fcntl_ioctl_impl(PyObject *module, int fd, unsigned int code, +fcntl_ioctl_impl(PyObject *module, int fd, unsigned long code, PyObject *ob_arg, int mutate_arg); static PyObject * @@ -104,7 +104,7 @@ fcntl_ioctl(PyObject *module, PyObject *const *args, Py_ssize_t nargs) { PyObject *return_value = NULL; int fd; - unsigned int code; + unsigned long code; PyObject *ob_arg = NULL; int mutate_arg = 1; @@ -120,10 +120,11 @@ fcntl_ioctl(PyObject *module, PyObject *const *args, Py_ssize_t nargs) if (fd < 0) { goto exit; } - code = (unsigned int)PyLong_AsUnsignedLongMask(args[1]); - if (code == (unsigned int)-1 && PyErr_Occurred()) { + if (!PyLong_Check(args[1])) { + PyErr_Format(PyExc_TypeError, "ioctl() argument 2 must be int, not %T", args[1]); goto exit; } + code = PyLong_AsUnsignedLongMask(args[1]); if (nargs < 3) { goto skip_optional; } @@ -263,4 +264,4 @@ skip_optional: exit: return return_value; } -/*[clinic end generated code: output=26793691ab1c75ba input=a9049054013a1b77]*/ +/*[clinic end generated code: output=45a56f53fd17ff3c input=a9049054013a1b77]*/ diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c index b6eeec2..873bdf2 100644 --- a/Modules/fcntlmodule.c +++ b/Modules/fcntlmodule.c @@ -112,7 +112,7 @@ fcntl_fcntl_impl(PyObject *module, int fd, int code, PyObject *arg) fcntl.ioctl fd: fildes - request as code: unsigned_int(bitwise=True) + request as code: unsigned_long(bitwise=True) arg as ob_arg: object(c_default='NULL') = 0 mutate_flag as mutate_arg: bool = True / @@ -148,9 +148,9 @@ code. [clinic start generated code]*/ static PyObject * -fcntl_ioctl_impl(PyObject *module, int fd, unsigned int code, +fcntl_ioctl_impl(PyObject *module, int fd, unsigned long code, PyObject *ob_arg, int mutate_arg) -/*[clinic end generated code: output=7f7f5840c65991be input=967b4a4cbeceb0a8]*/ +/*[clinic end generated code: output=3d8eb6828666cea1 input=cee70f6a27311e58]*/ { #define IOCTL_BUFSZ 1024 /* We use the unsigned non-checked 'I' format for the 'code' parameter |