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#include <u.h>
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#include <libc.h>
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#include <venti.h>
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#include <libsec.h>
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#include <thread.h>
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void
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usage(void)
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{
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	fprint(2, "usage: read [-h host] [-t type] score\n");
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	threadexitsall("usage");
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}
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void
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threadmain(int argc, char *argv[])
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{
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	int type, n;
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	uchar score[VtScoreSize];
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	uchar *buf;
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	VtConn *z;
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	char *host;
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	fmtinstall('F', vtfcallfmt);
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	fmtinstall('V', vtscorefmt);
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	host = nil;
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	type = -1;
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	ARGBEGIN{
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	case 'h':
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		host = EARGF(usage());
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		break;
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	case 't':
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		type = atoi(EARGF(usage()));
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		break;
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	default:
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		usage();
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		break;
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	}ARGEND
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	if(argc != 1)
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		usage();
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	if(vtparsescore(argv[0], nil, score) < 0)
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		sysfatal("could not parse score '%s': %r", argv[0]);
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	buf = vtmallocz(VtMaxLumpSize);
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	z = vtdial(host);
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	if(z == nil)
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		sysfatal("could not connect to server: %r");
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	if(vtconnect(z) < 0)
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		sysfatal("vtconnect: %r");
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	if(type == -1){
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		n = -1;
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		for(type=0; type<VtMaxType; type++){
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			n = vtread(z, score, type, buf, VtMaxLumpSize);
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			if(n >= 0){
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				fprint(2, "venti/read%s%s %V %d\n", host ? " -h" : "", host ? host : "",
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					score, type);
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				break;
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			}
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		}
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	}else
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		n = vtread(z, score, type, buf, VtMaxLumpSize);
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	vthangup(z);
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	if(n < 0)
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		sysfatal("could not read block: %r");
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	if(write(1, buf, n) != n)
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		sysfatal("write: %r");
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	threadexitsall(0);
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}