1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#include <u.h>
#include <libc.h>
#include <venti.h>
#include <libsec.h>
#include <thread.h>
void
usage(void)
{
fprint(2, "usage: root [-h host] score\n");
threadexitsall("usage");
}
void
threadmain(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(8192);
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, 8192);
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);
}
|