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authorChristopher Faylor <me@cgf.cx>2009-12-09 16:52:43 +0000
committerChristopher Faylor <me@cgf.cx>2009-12-09 16:52:43 +0000
commitd0f9de23a19f0cf588a848a2d7fa9c4c73f4c8eb (patch)
tree215c8f3b220c998c0286edbbfe538b2bc7b609ce /winsup/cygwin/fhandler_fifo.cc
parentad0ae5d83af50e747e727b361e6d97ecb0022e51 (diff)
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* fhandler_fifo.cc (fhandler_fifo::open): Avoid resetting errno after it has
been explicitly set. * include/cygwin/version.h: Bump DLL minor version number to 2.
Diffstat (limited to 'winsup/cygwin/fhandler_fifo.cc')
-rw-r--r--winsup/cygwin/fhandler_fifo.cc11
1 files changed, 8 insertions, 3 deletions
diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc
index b612094..1955f87 100644
--- a/winsup/cygwin/fhandler_fifo.cc
+++ b/winsup/cygwin/fhandler_fifo.cc
@@ -1,6 +1,6 @@
/* fhandler_fifo.cc - See fhandler.h for a description of the fhandler classes.
- Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Red Hat, Inc.
+ Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Red Hat, Inc.
This file is part of Cygwin.
@@ -95,6 +95,7 @@ fhandler_fifo::open (int flags, mode_t)
char char_sa_buf[1024];
LPSECURITY_ATTRIBUTES sa_buf =
sec_user ((PSECURITY_ATTRIBUTES) char_sa_buf, cygheap->user.sid());
+ bool do_seterrno = true;
HANDLE h;
bool nonblocking_write = !!((flags & (O_WRONLY | O_NONBLOCK)) == (O_WRONLY | O_NONBLOCK));
@@ -110,7 +111,10 @@ fhandler_fifo::open (int flags, mode_t)
if (h != INVALID_HANDLE_VALUE)
wait_state = fifo_ok;
else if (nonblocking_write)
- set_errno (ENXIO);
+ {
+ set_errno (ENXIO);
+ do_seterrno = false;
+ }
else if ((h = cnp (PIPE_ACCESS_DUPLEX, 1)) != INVALID_HANDLE_VALUE)
{
if ((dummy_client = open_nonserver (npname, low_flags, sa_buf))
@@ -130,7 +134,8 @@ fhandler_fifo::open (int flags, mode_t)
}
if (h == INVALID_HANDLE_VALUE)
{
- __seterrno ();
+ if (do_seterrno)
+ __seterrno ();
res = 0;
}
else if (!setup_overlapped ())