This patch uses fdwalk(3c) to close file descriptors; as that function is not

widely implemented, this is unsuitable for upstream.

--- Python-3.4.3/Modules/posixmodule.c.~1~ 2015-02-25 03:27:46.000000000 -0800

+++ Python-3.4.3/Modules/posixmodule.c 2015-02-25 08:22:50.773678769 -0800

@@ -7809,16 +7809,34 @@

"closerange(fd_low, fd_high)\n\n\

Closes all file descriptors in [fd_low, fd_high), ignoring errors.");

+static int

+close_func(void *lohi, int fd)

+{

+ int lo = ((int *)lohi)[0];

+ int hi = ((int *)lohi)[1];

+

+ if (fd >= hi)

+ return (1);

+ else if (fd >= lo)

+ close(fd);

+

+ return (0);

+}

+

static PyObject *

posix_closerange(PyObject *self, PyObject *args)

{

int fd_from, fd_to, i;

+ int lohi[2];

+

if (!PyArg_ParseTuple(args, "ii:closerange", &fd_from, &fd_to))

return NULL;

Py_BEGIN_ALLOW_THREADS

- for (i = fd_from; i < fd_to; i++)

- if (_PyVerify_fd(i))

- close(i);

+

+ lohi[0] = fd_from;

+ lohi[1] = fd_to;

+ fdwalk(close_func, lohi);

+

Py_END_ALLOW_THREADS

Py_RETURN_NONE;

}