20060303a

1 files changed, 140 insertions, 0 deletions

diff --git a/include/styx.h b/include/styx.h
new file mode 100644
index 00000000..9b552368
--- /dev/null
+++ b/include/styx.h
@@ -0,0 +1,140 @@
+#pragma src "/usr/inferno/lib9"
+#pragma	lib	"libc.a"
+
+#define	VERSION9P	"9P2000"
+
+#define	MAXWELEM	16
+
+typedef
+struct	Fcall
+{
+	uchar	type;
+	u32int	fid;
+	ushort	tag;
+	/* union { */
+		/* struct { */
+			u32int	msize;		/* Tversion, Rversion */
+			char	*version;	/* Tversion, Rversion */
+		/* }; */
+		/* struct { */
+			ushort	oldtag;		/* Tflush */
+		/* }; */
+		/* struct { */
+			char	*ename;		/* Rerror */
+		/* }; */
+		/* struct { */
+			Qid	qid;		/* Rattach, Ropen, Rcreate */
+			u32int	iounit;		/* Ropen, Rcreate */
+		/* }; */
+		/* struct { */
+			Qid	aqid;		/* Rauth */
+		/* }; */
+		/* struct { */
+			u32int	afid;		/* Tauth, Tattach */
+			char	*uname;		/* Tauth, Tattach */
+			char	*aname;		/* Tauth, Tattach */
+		/* }; */
+		/* struct { */
+			u32int	perm;		/* Tcreate */ 
+			char	*name;		/* Tcreate */
+			uchar	mode;		/* Tcreate, Topen */
+		/* }; */
+		/* struct { */
+			u32int	newfid;		/* Twalk */
+			ushort	nwname;		/* Twalk */
+			char	*wname[MAXWELEM];	/* Twalk */
+		/* }; */
+		/* struct { */
+			ushort	nwqid;		/* Rwalk */
+			Qid	wqid[MAXWELEM];		/* Rwalk */
+		/* }; */
+		/* struct { */
+			vlong	offset;		/* Tread, Twrite */
+			u32int	count;		/* Tread, Twrite, Rread */
+			char	*data;		/* Twrite, Rread */
+		/* }; */
+		/* struct { */
+			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*