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From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: FIFO: tweak fcntl and dup when O_PATH is set Date: Fri, 24 Jan 2020 10:27:00 -0000 [thread overview] Message-ID: <20200124102703.31844.qmail@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7d68ffadd3fbc9b8dcd189d4a20c12a9cd1ed743 commit 7d68ffadd3fbc9b8dcd189d4a20c12a9cd1ed743 Author: Ken Brown <kbrown@cornell.edu> Date: Thu Jan 23 16:31:05 2020 +0000 Cygwin: FIFO: tweak fcntl and dup when O_PATH is set fhandler_fifo::fcntl and fhandler_fifo::dup now call the corresponding fhandler_base methods if the FIFO was opened with the O_PATH flag. Diff: --- winsup/cygwin/fhandler_fifo.cc | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc index 8cbab35..a338f12 100644 --- a/winsup/cygwin/fhandler_fifo.cc +++ b/winsup/cygwin/fhandler_fifo.cc @@ -997,7 +997,7 @@ fhandler_fifo::close () int fhandler_fifo::fcntl (int cmd, intptr_t arg) { - if (cmd != F_SETFL || nohandle ()) + if (cmd != F_SETFL || nohandle () || (get_flags () & O_PATH)) return fhandler_base::fcntl (cmd, arg); const bool was_nonblocking = is_nonblocking (); @@ -1014,6 +1014,9 @@ fhandler_fifo::dup (fhandler_base *child, int flags) int ret = -1; fhandler_fifo *fhf = NULL; + if (get_flags () & O_PATH) + return fhandler_base::dup (child, flags); + if (fhandler_base::dup (child, flags)) goto out;
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