From: RUANG (James Roy) <longjinyii@outlook.com>
Date: Thu, 24 Apr 2025 21:06:42 +0000 (+0800)
Subject: gh-127385: Add F_DUPFD_QUERY to fcntl (GH-127386)
X-Git-Tag: v3.14.0b1~317
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8e18a9dce2af361d9974812e6ffa22bf3970d057;p=thirdparty%2FPython%2Fcpython.git

gh-127385: Add F_DUPFD_QUERY to fcntl (GH-127386)
---

diff --git a/Doc/library/fcntl.rst b/Doc/library/fcntl.rst
index a9fbab3d0bbf..b4ea3e7e31bd 100644
--- a/Doc/library/fcntl.rst
+++ b/Doc/library/fcntl.rst
@@ -79,6 +79,10 @@ descriptor.
    On macOS and NetBSD, the :mod:`!fcntl` module exposes the ``F_GETNOSIGPIPE``
    and ``F_SETNOSIGPIPE`` constant.
 
+.. versionchanged:: next
+   On Linux >= 6.1, the :mod:`!fcntl` module exposes the ``F_DUPFD_QUERY``
+   to query a file descriptor pointing to the same file.
+
 The module defines the following functions:
 
 
diff --git a/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst b/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst
new file mode 100644
index 000000000000..3770d586ba46
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst
@@ -0,0 +1 @@
+Add the ``F_DUPFD_QUERY`` constant to the :mod:`fcntl` module.
diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index 81a1e1c22c8a..7e14e6bc3a52 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -559,6 +559,9 @@ all_ins(PyObject* m)
 #ifdef F_NOTIFY
     if (PyModule_AddIntMacro(m, F_NOTIFY)) return -1;
 #endif
+#ifdef F_DUPFD_QUERY
+    if (PyModule_AddIntMacro(m, F_DUPFD_QUERY)) return -1;
+#endif
 /* Old BSD flock(). */
 #ifdef F_EXLCK
     if (PyModule_AddIntMacro(m, F_EXLCK)) return -1;