/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <venti.h>#include <libsec.h>#include <thread.h> voidusage(void){	fprint(2, "usage: root [-h host] score\n");	threadexitsall("usage");} voidthreadmain(int argc, char *argv[]){	int i, n;	uchar score[VtScoreSize];	uchar *buf;	VtConn *z;	char *host;	VtRoot root; 	fmtinstall('F', vtfcallfmt);	fmtinstall('V', vtscorefmt);	quotefmtinstall(); 	host = nil;	ARGBEGIN{	case 'h':		host = EARGF(usage());		break;	default:		usage();		break;	}ARGEND 	if(argc == 0)		usage(); 	buf = vtmallocz(VtMaxLumpSize); 	z = vtdial(host);	if(z == nil)		sysfatal("could not connect to server: %r"); 	if(vtconnect(z) < 0)		sysfatal("vtconnect: %r"); 	for(i=0; i<argc; i++){		if(vtparsescore(argv[i], nil, score) < 0){			fprint(2, "cannot parse score '%s': %r\n", argv[i]);			continue;		}		n = vtread(z, score, VtRootType, buf, VtMaxLumpSize);		if(n < 0){			fprint(2, "could not read block %V: %r\n", score);			continue;		}		if(n != VtRootSize){			fprint(2, "block %V is wrong size %d != 300\n", score, n);			continue;		}		if(vtrootunpack(&root, buf) < 0){			fprint(2, "unpacking block %V: %r\n", score);			continue;		}		print("%V: %q %q %V %d %V\n", score, root.name, root.type, root.score, root.blocksize, root.prev);	}	vthangup(z);	threadexitsall(0);}