/*
 * functions (possibly) linked in, complete, from libc.
 */

/*
 * mem routines
 */
extern	void*	memccpy(void*, void*, int, long);
extern	void*	memset(void*, int, long);
extern	int	memcmp(void*, void*, long);
extern	void*	memmove(void*, void*, long);
extern	void*	memchr(void*, int, long);

/*
 * string routines
 */
extern	char*	strcat(char*, char*);
extern	char*	strchr(char*, char);
extern	char*	strrchr(char*, char);
extern	int	strcmp(char*, char*);
extern	char*	strcpy(char*, char*);
extern	char*	strstr(char*, char*);
extern	char*	strncat(char*, char*, long);
extern	char*	strncpy(char*, char*, long);
extern	int	strncmp(char*, char*, long);
extern	long	strlen(char*);
extern	char*	strdup(char*);
extern	int	atoi(char*);

enum
{
	UTFmax		= 3,	/* maximum bytes per rune */
	Runesync	= 0x80,	/* cannot represent part of a UTF sequence */
	Runeself	= 0x80,	/* rune and UTF sequences are the same (<) */
	Runeerror	= 0x80,	/* decoding error in UTF */
};

/*
 * rune routines
 */
extern	int	runetochar(char*, Rune*);
extern	int	chartorune(Rune*, char*);
extern	int	runelen(long);
extern	char*	utfrune(char*, long);
extern	int	utflen(char*);

extern	int	abs(int);

/*
 * print routines
 */
typedef
struct
{
	char*	out;		/* pointer to next output */
	char*	eout;		/* pointer to end */
	int	f1;
	int	f2;
	int	f3;
	int	chr;
} Fconv;
extern	void	strconv(char*, Fconv*);
extern	int	numbconv(void*, Fconv*);
extern	int	fltconv(void*, Fconv*);
extern	char	*doprint(char*, char*, char*, void*);
extern	int	fmtinstall(int, int (*)(void*, Fconv*));
extern	int	sprint(char*, char*, ...);
extern	int	snprint(char*, int, char*, ...);
extern	int	print(char*, ...);

/*
 * math
 */
extern int	isNaN(double);
extern int	isInf(double, int);
extern double	floor(double);
extern double	frexp(double, int*);
extern double	pow10(int);

/*
 * Syscall data structures
 */
#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	0x001F	/* all bits on */

#define	OREAD	0	/* open for read */
#define	OWRITE	1	/* write */
#define	ORDWR	2	/* read and write */
#define	OEXEC	3	/* execute, == read but check execute permission */
#define	OTRUNC	16	/* or'ed in (except for exec), truncate file first */
#define	OCEXEC	32	/* or'ed in, close on exec */
#define	ORCLOSE	64	/* or'ed in, remove on close */

#define	NCONT	0	/* continue after note */
#define	NDFLT	1	/* terminate after note */
#define	NSAVE	2	/* clear note but hold state */
#define	NRSTR	3	/* restore saved state */

typedef struct Qid	Qid;
typedef struct Dir	Dir;
typedef struct Waitmsg	Waitmsg;

#define	ERRLEN		64
#define	DIRLEN		116
#define	NAMELEN		28

struct Qid
{
	ulong	path;
	ulong	vers;
};

struct Dir
{
	char	name[NAMELEN];
	char	uid[NAMELEN];
	char	gid[NAMELEN];
	Qid	qid;
	ulong	mode;
	long	atime;
	long	mtime;
	Length;
	short	type;
	short	dev;
};

struct Waitmsg
{
	char	pid[12];	/* of loved one */
	char	time[3*12];	/* of loved one and descendants */
	char	msg[ERRLEN];
};

extern	long	strtol(char*, char**, int);
extern	vlong	strtoll(char*, char**, int);
extern	ulong	strtoul(char*, char**, int);
extern	int	toupper(int);
extern	char*	netmkaddr(char*, char*, char*);
extern	int	myetheraddr(uchar*, char*);
extern	int	parseether(uchar*, char*);
extern	char	etext[];
extern	char	edata[];
extern	char	end[];