initial import

1 files changed, 86 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/fcntlbits.h b/sysdeps/unix/sysv/fcntlbits.h
new file mode 100644
index 0000000000..d7dbd0c20a
--- /dev/null
+++ b/sysdeps/unix/sysv/fcntlbits.h
@@ -0,0 +1,86 @@
+/* O_*, F_*, FD_* bit values for System V.
+Copyright (C) 1991, 1992 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_FCNTLBITS_H
+
+#define	_FCNTLBITS_H	1
+
+
+/* File access modes for `open' and `fcntl'.  */
+#define	O_RDONLY	0	/* Open read-only.  */
+#define	O_WRONLY	1	/* Open write-only.  */
+#define	O_RDWR		2	/* Open read/write.  */
+
+
+/* Bits OR'd into the second argument to open.  */
+#define	O_CREAT		00400	/* Create file if it doesn't exist.  */
+#define	O_EXCL		02000	/* Fail if file already exists.  */
+#define	O_TRUNC		01000	/* Truncate file to zero length.  */
+#if	defined (__USE_BSD) || defined (__USE_SVID)
+#define	O_SYNC		00020	/* Synchronous writes.  */
+#endif
+
+/* File status flags for `open' and `fcntl'.  */
+#define	O_APPEND	000010	/* Writes append to the file.  */
+#define	O_NONBLOCK	000004	/* Non-blocking I/O.  */
+
+#ifdef __USE_BSD
+/* System V doesn't support POSIX.1 O_NONBLOCK, but O_NDELAY is close.  */
+#define	O_NDELAY	O_NONBLOCK
+#endif
+
+/* Mask for file access modes.  This is system-dependent in case
+   some system ever wants to define some other flavor of access.  */
+#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+
+/* Values for the second argument to `fcntl'.  */
+#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
+#define	F_GETFD		1	/* Get file descriptor flags.  */
+#define	F_SETFD		2	/* Set file descriptor flags.  */
+#define	F_GETFL		3	/* Get file status flags.  */
+#define	F_SETFL		4	/* Set file status flags.  */
+#define	F_GETLK		5	/* Get record locking info.  */
+#define	F_SETLK		6	/* Set record locking info.  */
+#define	F_SETLKW	7	/* Set record locking info, wait.  */
+
+/* File descriptor flags used with F_GETFD and F_SETFD.  */
+#define	FD_CLOEXEC	1	/* Close on exec.  */
+
+
+#include <gnu/types.h>
+
+/* The structure describing an advisory lock.  This is the type of the third
+   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    short int l_sysid;	/* System ID where locking process resides. */
+    short int l_pid;	/* Process holding the lock.  */
+  };
+
+/* Values for the `l_type' field of a `struct flock'.  */
+#define	F_RDLCK	1	/* Read lock.  */
+#define	F_WRLCK	2	/* Write lock.  */
+#define	F_UNLCK	3	/* Remove lock.  */
+
+
+#endif	/* fcntlbits.h */