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