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-rw-r--r--hurd/fcntl-internal.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/hurd/fcntl-internal.h b/hurd/fcntl-internal.h
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+/* Copyright (C) 2008-2015 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <verify.h>
+
+/* Do some compile-time checks for the SOCK_* constants, which we rely on. */
+verify (SOCK_CLOEXEC == O_CLOEXEC);
+verify ((SOCK_MAX | SOCK_TYPE_MASK) == SOCK_TYPE_MASK);
+verify ((SOCK_CLOEXEC & SOCK_TYPE_MASK) == 0);
+verify ((SOCK_NONBLOCK & SOCK_TYPE_MASK) == 0);
+
+
+/* Helper functions for translating between O_* and SOCK_* flags. */
+
+__extern_always_inline
+int
+sock_to_o_flags (int in)
+{
+ int out = 0;
+
+ if (in & SOCK_NONBLOCK)
+ out |= O_NONBLOCK;
+ /* Others are passed through unfiltered. */
+ out |= in & ~(SOCK_NONBLOCK);
+
+ return out;
+}
+
+__extern_always_inline
+int
+o_to_sock_flags (int in)
+{
+ int out = 0;
+
+ if (in & O_NONBLOCK)
+ out |= SOCK_NONBLOCK;
+ /* Others are passed through unfiltered. */
+ out |= in & ~(O_NONBLOCK);
+
+ return out;
+}