#ifndef __LIB9_H#define __LIB9_H#if !defined(_RESEARCH_SOURCE) && !defined(_PLAN9_SOURCE)    This header file is an extension to ANSI/POSIX#endif#pragma lib "/$M/lib/ape/lib9.a"  #define	MORDER	0x0003	/* mask for bits defining order of mounting */#define	MREPL	0x0000	/* mount replaces object */#define	MBEFORE	0x0001	/* mount goes before others in union directory */#define	MAFTER	0x0002	/* mount goes after others in union directory */#define	MCREATE	0x0004	/* permit creation in mounted directory */#define MRECOV	0x0008	/* perform recovery if mount channel is lost */#define MCACHE	0x0010	/* cache some data */#define	MMASK	0x0007	/* all bits on */ #define	FORKPG		1#define	FORKEG		2#define	FORKFD		4 #define	SG_RONLY	0040	/* read only */#define	SG_CEXEC	0100	/* detach on exec */ enum{	RFNAMEG		= (1<<0),	RFENVG		= (1<<1),	RFFDG		= (1<<2),	RFNOTEG		= (1<<3),	RFPROC		= (1<<4),	RFMEM		= (1<<5),	RFNOWAIT	= (1<<6),	RFCNAMEG	= (1<<10),	RFCENVG		= (1<<11),	RFCFDG		= (1<<12),	RFREND		= (1<<13)}; extern	int	errstr(char*, unsigned int);extern	int	bind(char*, char*, int);extern	int	mount(int, int, char*, int, char*);extern	int	unmount(char*, char*);extern	int	rfork(int);extern	int	segattach(int, char*, void*, unsigned long);extern	int	segbrk(void*, void*);extern	int	segdetach(void*);extern	int	segflush(void*, unsigned long);extern	int	segfree(void*, unsigned long);extern	unsigned long	rendezvous(unsigned long, unsigned long);extern	unsigned long	getfcr(void);extern	unsigned long	getfsr(void);extern	void		setfcr(unsigned long);extern	void		setfsr(unsigned long); #endif