[Python-checkins] cpython: Issue #23450: Fix signal.set_wakeup_fd() on Windows
victor.stinner
python-checkins at python.org
Thu Feb 12 16:35:39 CET 2015
https://hg.python.org/cpython/rev/9e10c4255277
changeset: 94594:9e10c4255277
user: Victor Stinner <victor.stinner at gmail.com>
date: Thu Feb 12 16:34:54 2015 +0100
summary:
Issue #23450: Fix signal.set_wakeup_fd() on Windows
Detect integer overflow on the file descriptor of the socket on 64-bit Python.
files:
Modules/signalmodule.c | 25 ++++++++++++++-----------
1 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -505,7 +505,7 @@
{
#ifdef MS_WINDOWS
PyObject *fdobj;
- SOCKET_T fd, old_fd;
+ SOCKET_T sockfd, old_sockfd;
int res;
int res_size = sizeof res;
PyObject *mod;
@@ -515,8 +515,8 @@
if (!PyArg_ParseTuple(args, "O:set_wakeup_fd", &fdobj))
return NULL;
- fd = PyLong_AsSocket_t(fdobj);
- if (fd == (SOCKET_T)(-1) && PyErr_Occurred())
+ sockfd = PyLong_AsSocket_t(fdobj);
+ if (sockfd == (SOCKET_T)(-1) && PyErr_Occurred())
return NULL;
#else
int fd, old_fd;
@@ -536,7 +536,7 @@
#ifdef MS_WINDOWS
is_socket = 0;
- if (fd != INVALID_FD) {
+ if (sockfd != INVALID_FD) {
/* Import the _socket module to call WSAStartup() */
mod = PyImport_ImportModuleNoBlock("_socket");
if (mod == NULL)
@@ -544,15 +544,18 @@
Py_DECREF(mod);
/* test the socket */
- if (getsockopt(fd, SOL_SOCKET, SO_ERROR,
+ if (getsockopt(sockfd, SOL_SOCKET, SO_ERROR,
(char *)&res, &res_size) != 0) {
- int err = WSAGetLastError();
+ int fd, err;
+
+ err = WSAGetLastError();
if (err != WSAENOTSOCK) {
PyErr_SetExcFromWindowsErr(PyExc_OSError, err);
return NULL;
}
- if (!_PyVerify_fd(fd)) {
+ fd = (int)sockfd;
+ if ((SOCKET_T)fd != sockfd || !_PyVerify_fd(fd)) {
PyErr_SetString(PyExc_ValueError, "invalid fd");
return NULL;
}
@@ -572,12 +575,12 @@
}
}
- old_fd = wakeup.fd;
- wakeup.fd = fd;
+ old_sockfd = wakeup.fd;
+ wakeup.fd = sockfd;
wakeup.use_send = is_socket;
- if (old_fd != INVALID_FD)
- return PyLong_FromSocket_t(old_fd);
+ if (old_sockfd != INVALID_FD)
+ return PyLong_FromSocket_t(old_sockfd);
else
return PyLong_FromLong(-1);
#else
--
Repository URL: https://hg.python.org/cpython
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