Subversion Repositories planix.SVN

/*

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

 */

#define nelem(x)	(sizeof(x)/sizeof((x)[0]))

#define offsetof(s, m)	(ulong)(&(((s*)0)->m))

#define assert(x)	if(x){}else _assert("x")

/*

 * mem routines

 */

extern	void*	memccpy(void*, void*, int, ulong);

extern	void*	memset(void*, int, ulong);

extern	int	memcmp(void*, void*, ulong);

extern	void*	memmove(void*, void*, ulong);

extern	void*	memchr(void*, int, ulong);

/*

 * string routines

 */

extern	char*	strcat(char*, char*);

extern	char*	strchr(char*, int);

extern	char*	strrchr(char*, int);

extern	int	strcmp(char*, char*);

extern	char*	strcpy(char*, char*);

extern	char*	strecpy(char*, 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*	strstr(char*, char*);

extern	int	atoi(char*);

extern	int	fullrune(char*, int);

extern	int	cistrcmp(char*, char*);

extern	int	cistrncmp(char*, char*, int);

enum

{

	UTFmax		= 4,		/* maximum bytes per rune */

	Runesync	= 0x80,		/* cannot represent part of a UTF sequence (<) */

	Runeself	= 0x80,		/* rune and UTF sequences are the same (<) */

	Runeerror	= 0xFFFD,	/* decoding error in UTF */

	Runemax		= 0x10FFFF,	/* 24 bit rune */

	Runemask	= 0x1FFFFF,	/* bits used by runes (see grep) */

};

/*

 * rune routines

 */

extern	int	runetochar(char*, Rune*);

extern	int	chartorune(Rune*, char*);

extern	char*	utfrune(char*, long);

extern	int	utflen(char*);

extern	int	utfnlen(char*, long);

extern	int	runelen(long);

extern	int	abs(int);

/*

 * print routines

 */

typedef struct Fmt	Fmt;

typedef int (*Fmts)(Fmt*);

struct Fmt{

	uchar	runes;			/* output buffer is runes or chars? */

	void	*start;			/* of buffer */

	void	*to;			/* current place in the buffer */

	void	*stop;			/* end of the buffer; overwritten if flush fails */

	int	(*flush)(Fmt *);	/* called when to == stop */

	void	*farg;			/* to make flush a closure */

	int	nfmt;			/* num chars formatted so far */

	va_list	args;			/* args passed to dofmt */

	int	r;			/* % format Rune */

	int	width;

	int	prec;

	ulong	flags;

};

extern	int	print(char*, ...);

extern	char*	seprint(char*, char*, char*, ...);

extern	char*	vseprint(char*, char*, char*, va_list);

extern	int	snprint(char*, int, char*, ...);

extern	int	vsnprint(char*, int, char*, va_list);

extern	int	sprint(char*, char*, ...);

#pragma	varargck	argpos	fmtprint	2

#pragma	varargck	argpos	print		1

#pragma	varargck	argpos	seprint		3

#pragma	varargck	argpos	snprint		3

#pragma	varargck	argpos	sprint		2

#pragma	varargck	type	"lld"	vlong

#pragma	varargck	type	"llx"	vlong

#pragma	varargck	type	"lld"	uvlong

#pragma	varargck	type	"llx"	uvlong

#pragma	varargck	type	"ld"	long

#pragma	varargck	type	"lx"	long

#pragma	varargck	type	"ld"	ulong

#pragma	varargck	type	"lx"	ulong

#pragma	varargck	type	"d"	int

#pragma	varargck	type	"x"	int

#pragma	varargck	type	"c"	int

#pragma	varargck	type	"C"	int

#pragma	varargck	type	"d"	uint

#pragma	varargck	type	"x"	uint

#pragma	varargck	type	"c"	uint

#pragma	varargck	type	"C"	uint

#pragma	varargck	type	"s"	char*

#pragma	varargck	type	"q"	char*

#pragma	varargck	type	"S"	Rune*

#pragma	varargck	type	"%"	void

#pragma	varargck	type	"p"	uintptr

#pragma	varargck	type	"p"	void*

#pragma	varargck	flag	','

extern	int	fmtstrinit(Fmt*);

extern	int	fmtinstall(int, int (*)(Fmt*));

extern	void	quotefmtinstall(void);

extern	int	fmtprint(Fmt*, char*, ...);

extern	int	fmtstrcpy(Fmt*, char*);

extern	char*	fmtstrflush(Fmt*);

/*

 * one-of-a-kind

 */

extern	char*	cleanname(char*);

extern	ulong	getcallerpc(void*);

extern	long	strtol(char*, char**, int);

extern	ulong	strtoul(char*, char**, int);

extern	vlong	strtoll(char*, char**, int);

extern	uvlong	strtoull(char*, char**, int);

extern	char	etext[];

extern	char	edata[];

extern	char	end[];

extern	int	getfields(char*, char**, int, int, char*);

extern	int	tokenize(char*, char**, int);

extern	int	dec64(uchar*, int, char*, int);

extern	int	encodefmt(Fmt*);

extern	void	qsort(void*, long, long, int (*)(void*, void*));

/*

 * 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	MCACHE	0x0010	/* cache some data */

#define	MMASK	0x0017	/* 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 OEXCL   0x1000	/* or'ed in, exclusive create */

#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 OWaitmsg	OWaitmsg;

typedef struct Waitmsg	Waitmsg;

#define	ERRMAX			128	/* max length of error string */

#define	KNAMELEN		28	/* max length of name held in kernel */

/* bits in Qid.type */

#define QTDIR		0x80		/* type bit for directories */

#define QTAPPEND	0x40		/* type bit for append only files */

#define QTEXCL		0x20		/* type bit for exclusive use files */

#define QTMOUNT		0x10		/* type bit for mounted channel */

#define QTAUTH		0x08		/* type bit for authentication file */

#define QTFILE		0x00		/* plain file */

/* bits in Dir.mode */

#define DMDIR		0x80000000	/* mode bit for directories */

#define DMAPPEND	0x40000000	/* mode bit for append only files */

#define DMEXCL		0x20000000	/* mode bit for exclusive use files */

#define DMMOUNT		0x10000000	/* mode bit for mounted channel */

#define DMREAD		0x4		/* mode bit for read permission */

#define DMWRITE		0x2		/* mode bit for write permission */

#define DMEXEC		0x1		/* mode bit for execute permission */

struct Qid

{

	uvlong	path;

	ulong	vers;

	uchar	type;

};

struct Dir {

	/* system-modified data */

	ushort	type;	/* server type */

	uint	dev;	/* server subtype */

	/* file data */

	Qid	qid;	/* unique id from server */

	ulong	mode;	/* permissions */

	ulong	atime;	/* last read time */

	ulong	mtime;	/* last write time */

	vlong	length;	/* file length: see <u.h> */

	char	*name;	/* last element of path */

	char	*uid;	/* owner name */

	char	*gid;	/* group name */

	char	*muid;	/* last modifier name */

};

struct OWaitmsg

{

	char	pid[12];	/* of loved one */

	char	time[3*12];	/* of loved one and descendants */

	char	msg[64];	/* compatibility BUG */

};

struct Waitmsg

{

	int	pid;		/* of loved one */

	ulong	time[3];	/* of loved one and descendants */

	char	msg[ERRMAX];	/* actually variable-size in user mode */

};