ADD file via upload

include/fcntl.h

@@ -0,0 +1,55 @@
+#ifndef _FCNTL_H
+#define _FCNTL_H
+
+#include <sys/types.h>
+
+/* open/fcntl - NOCTTY, NDELAY isn't implemented yet */
+#define O_ACCMODE	00003
+#define O_RDONLY	   00
+#define O_WRONLY	   01
+#define O_RDWR		   02
+#define O_CREAT		00100	/* not fcntl */
+#define O_EXCL		00200	/* not fcntl */
+#define O_NOCTTY	00400	/* not fcntl */
+#define O_TRUNC		01000	/* not fcntl */
+#define O_APPEND	02000
+#define O_NONBLOCK	04000	/* not fcntl */
+#define O_NDELAY	O_NONBLOCK
+
+/* Defines for fcntl-commands. Note that currently
+ * locking isn't supported, and other things aren't really
+ * tested.
+ */
+#define F_DUPFD		0	/* dup */
+#define F_GETFD		1	/* get f_flags */
+#define F_SETFD		2	/* set f_flags */
+#define F_GETFL		3	/* more flags (cloexec) */
+#define F_SETFL		4
+#define F_GETLK		5	/* not implemented */
+#define F_SETLK		6
+#define F_SETLKW	7
+
+/* for F_[GET|SET]FL */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* Ok, these are locking features, and aren't implemented at any
+ * level. POSIX wants them.
+ */
+#define F_RDLCK		0
+#define F_WRLCK		1
+#define F_UNLCK		2
+
+/* Once again - not implemented, but ... */
+struct flock {
+	short l_type;
+	short l_whence;
+	off_t l_start;
+	off_t l_len;
+	pid_t l_pid;
+};
+
+extern int creat(const char * filename,mode_t mode);
+extern int fcntl(int fildes,int cmd, ...);
+extern int open(const char * filename, int flags, ...);
+
+#endif