[PATCH 3/3] Cygwin: FIFO: tweak fcntl and dup when O_PATH is set
Ken Brown
kbrown@cornell.edu
Thu Jan 23 16:31:00 GMT 2020
fhandler_fifo::fcntl and fhandler_fifo::dup now call the corresponding
fhandler_base methods if the FIFO was opened with the O_PATH flag.
---
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 8cbab353c..a338f12cc 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;
--
2.21.0
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