updated to minix 1.5

lib/minix/include/fcntl.h

@@ -0,0 +1,68 @@
+/* The <fcntl.h> header is needed by the open() and fcntl() system calls,
+ * which  have a variety of parameters and flags.  They are described here.  
+ * The formats of the calls to each of these are:
+ *
+ *	open(path, oflag [,mode])	open a file
+ *	fcntl(fd, cmd [,arg])		get or set file attributes
+ * 
+ */
+
+#ifndef _FCNTL_H
+#define _FCNTL_H
+
+/* These values are used for cmd in fcntl().  POSIX Table 6-1.  */
+#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 information */
+#define F_SETLK            6	/* set record locking information */
+#define F_SETLKW           7	/* set record locking info; wait if blocked */
+
+/* File descriptor flags used for fcntl().  POSIX Table 6-2. */
+#define FD_CLOEXEC         1	/* close on exec flag for third arg of fcntl */
+
+/* L_type values for record locking with fcntl().  POSIX Table 6-3. */
+#define F_RDLCK            0	/* shared or read lock */
+#define F_WRLCK            1	/* exclusive or write lock */
+#define F_UNLCK            2	/* unlock */
+
+/* Oflag values for open().  POSIX Table 6-4. */
+#define O_CREAT        00100	/* creat file if it doesn't exist */
+#define O_EXCL         00200	/* exclusive use flag */
+#define O_NOCTTY       00400	/* do not assign a controlling terminal */
+#define O_TRUNC        01000	/* truncate flag */
+
+/* File status flags for open() and fcntl().  POSIX Table 6-5. */
+#define O_APPEND       02000	/* set append mode */
+#define O_NONBLOCK     04000	/* no delay */
+
+/* File access modes for open() and fcntl().  POSIX Table 6-6. */
+#define O_RDONLY           0	/* open(name, O_RDONLY) opens read only */
+#define O_WRONLY           1	/* open(name, O_WRONLY) opens write only */
+#define O_RDWR             2	/* open(name, O_RDWR) opens read/write */
+
+/* Mask for use with file access modes.  POSIX Table 6-7. */
+#define O_ACCMODE         03	/* mask for file access modes */
+
+/* Struct used for locking.  POSIX Table 6-8. */
+struct flock {
+  short l_type;			/* type: F_RDLCK, F_WRLCK, or F_UNLCK */
+  short l_whence;		/* flag for starting offset */
+  off_t l_start;		/* relative offset in bytes */
+  off_t l_len;			/* size; if 0, then until EOF */
+  pid_t l_pid;			/* process id of the locks' owner */
+};
+
+
+/* Function Prototypes. */
+#ifndef _ANSI_H
+#include <ansi.h>
+#endif
+
+_PROTOTYPE( int creat, (const char *_path, Mode_t _mode)		);
+_PROTOTYPE( int fcntl, (int _filedes, int _cmd, ...)	  		);
+_PROTOTYPE( int open,  (const char *_path, int _oflag, ...) 		);
+
+#endif /* _FCNTL_H */