#include <u.h>#include <libc.h>#include <venti.h>#include <libsec.h>#include <thread.h> voidusage(void){	fprint(2, "usage: write [-z] [-h host] [-t type] <datablock\n");	threadexitsall("usage");} voidthreadmain(int argc, char *argv[]){	char *host;	int dotrunc, n, type;	uchar *p, score[VtScoreSize];	VtConn *z; 	fmtinstall('F', vtfcallfmt);	fmtinstall('V', vtscorefmt); 	host = nil;	dotrunc = 0;	type = VtDataType;	ARGBEGIN{	case 'z':		dotrunc = 1;		break;	case 'h':		host = EARGF(usage());		break;	case 't':		type = atoi(EARGF(usage()));		break;	default:		usage();		break;	}ARGEND 	if(argc != 0)		usage(); 	p = vtmallocz(VtMaxLumpSize+1);	n = readn(0, p, VtMaxLumpSize+1);	if(n > VtMaxLumpSize)		sysfatal("input too big: max block size is %d", VtMaxLumpSize);	z = vtdial(host);	if(z == nil)		sysfatal("could not connect to server: %r");	if(vtconnect(z) < 0)		sysfatal("vtconnect: %r");	if(dotrunc)		n = vtzerotruncate(type, p, n);	if(vtwrite(z, score, type, p, n) < 0)		sysfatal("vtwrite: %r");	vthangup(z);	print("%V\n", score);	threadexitsall(0);}