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/*
#pragma src "/sys/src/libc/9sys"
#pragma lib "libc.a"
*/
#define VERSION9P "9P2000"
#define MAXWELEM 16
typedef
struct Fcall
{
uchar type;
u32int fid;
ushort tag;
u32int msize; /* Tversion, Rversion */
char *version; /* Tversion, Rversion */
ushort oldtag; /* Tflush */
char *ename; /* Rerror */
Qid qid; /* Rattach, Ropen, Rcreate */
u32int iounit; /* Ropen, Rcreate */
Qid aqid; /* Rauth */
u32int afid; /* Tauth, Tattach */
char *uname; /* Tauth, Tattach */
char *aname; /* Tauth, Tattach */
u32int perm; /* Tcreate */
char *name; /* Tcreate */
uchar mode; /* Tcreate, Topen */
u32int newfid; /* Twalk */
ushort nwname; /* Twalk */
char *wname[MAXWELEM]; /* Twalk */
ushort nwqid; /* Rwalk */
Qid wqid[MAXWELEM]; /* Rwalk */
vlong offset; /* Tread, Twrite */
u32int count; /* Tread, Twrite, Rread */
char *data; /* Twrite, Rread */
ushort nstat; /* Twstat, Rstat */
uchar *stat; /* Twstat, Rstat */
} Fcall;
#define GBIT8(p) ((p)[0])
#define GBIT16(p) ((p)[0]|((p)[1]<<8))
#define GBIT32(p) ((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24))
#define GBIT64(p) ((vlong)((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24)) |\
((vlong)((p)[4]|((p)[5]<<8)|((p)[6]<<16)|((p)[7]<<24)) << 32))
#define PBIT8(p,v) (p)[0]=(v)
#define PBIT16(p,v) (p)[0]=(v);(p)[1]=(v)>>8
#define PBIT32(p,v) (p)[0]=(v);(p)[1]=(v)>>8;(p)[2]=(v)>>16;(p)[3]=(v)>>24
#define PBIT64(p,v) (p)[0]=(v);(p)[1]=(v)>>8;(p)[2]=(v)>>16;(p)[3]=(v)>>24;\
(p)[4]=(v)>>32;(p)[5]=(v)>>40;(p)[6]=(v)>>48;(p)[7]=(v)>>56
#define BIT8SZ 1
#define BIT16SZ 2
#define BIT32SZ 4
#define BIT64SZ 8
#define QIDSZ (BIT8SZ+BIT32SZ+BIT64SZ)
/* STATFIXLEN includes leading 16-bit count */
/* The count, however, excludes itself; total size is BIT16SZ+count */
#define STATFIXLEN (BIT16SZ+QIDSZ+5*BIT16SZ+4*BIT32SZ+1*BIT64SZ) /* amount of fixed length data in a stat buffer */
#define NOTAG (ushort)~0U /* Dummy tag */
#define NOFID (u32int)~0U /* Dummy fid */
#define IOHDRSZ 24 /* ample room for Twrite/Rread header (iounit) */
enum
{
Tversion = 100,
Rversion,
Tauth = 102,
Rauth,
Tattach = 104,
Rattach,
Terror = 106, /* illegal */
Rerror,
Tflush = 108,
Rflush,
Twalk = 110,
Rwalk,
Topen = 112,
Ropen,
Tcreate = 114,
Rcreate,
Tread = 116,
Rread,
Twrite = 118,
Rwrite,
Tclunk = 120,
Rclunk,
Tremove = 122,
Rremove,
Tstat = 124,
Rstat,
Twstat = 126,
Rwstat,
Tmax,
};
uint convM2S(uchar*, uint, Fcall*);
uint convS2M(Fcall*, uchar*, uint);
uint sizeS2M(Fcall*);
int statcheck(uchar *abuf, uint nbuf);
uint convM2D(uchar*, uint, Dir*, char*);
uint convD2M(Dir*, uchar*, uint);
uint sizeD2M(Dir*);
int fcallfmt(Fmt*);
int dirfmt(Fmt*);
int dirmodefmt(Fmt*);
int read9pmsg(int, void*, uint);
/*
#pragma varargck type "F" Fcall*
#pragma varargck type "M" ulong
#pragma varargck type "D" Dir*
*/
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