diff options
| -rw-r--r-- | Misc/NEWS.d/next/Library/2019-08-23-14-47-09.bpo-34521.Y2BYu5.rst | 2 | ||||
| -rw-r--r-- | Modules/_multiprocessing/multiprocessing.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Library/2019-08-23-14-47-09.bpo-34521.Y2BYu5.rst b/Misc/NEWS.d/next/Library/2019-08-23-14-47-09.bpo-34521.Y2BYu5.rst new file mode 100644 index 0000000..06f42a8 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2019-08-23-14-47-09.bpo-34521.Y2BYu5.rst @@ -0,0 +1,2 @@ +Fix file descriptors transfer in multiprocessing on FreeBSD: use +``CMSG_SPACE()`` rather than ``CMSG_LEN()``; see :rfc:`3542`. diff --git a/Modules/_multiprocessing/multiprocessing.c b/Modules/_multiprocessing/multiprocessing.c index d192a07..eecace8 100644 --- a/Modules/_multiprocessing/multiprocessing.c +++ b/Modules/_multiprocessing/multiprocessing.c @@ -167,7 +167,7 @@ multiprocessing_recvfd(PyObject *self, PyObject *args) cmsg = CMSG_FIRSTHDR(&msg); cmsg->cmsg_level = SOL_SOCKET; cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int)); + cmsg->cmsg_len = CMSG_SPACE(sizeof(int)); msg.msg_controllen = cmsg->cmsg_len; Py_BEGIN_ALLOW_THREADS |