1 /* Copyright (c) 2004 Russ Cox */
2 #include <u.h>
3 #include <libc.h>
4 #include <venti.h>
5 #include <thread.h>
6 #include <libsec.h>
7 
8 #ifndef _UNISTD_H_
9 #pragma varargck type "F" VtFcall*
10 #pragma varargck type "T" void
11 #endif
12 
13 int verbose;
14 
15 enum
16 {
17 	STACK = 8192,
18 };
19 
20 void
21 usage(void)
22 {
23 	fprint(2, "usage: venti/devnull [-v] [-a address]\n");
24 	threadexitsall("usage");
25 }
26 
27 void
28 threadmain(int argc, char **argv)
29 {
30 	VtReq *r;
31 	VtSrv *srv;
32 	char *address;
33 	Packet *p;
34 
35 	fmtinstall('V', vtscorefmt);
36 	fmtinstall('F', vtfcallfmt);
37 	
38 	address = "tcp!*!venti";
39 
40 	ARGBEGIN{
41 	case 'v':
42 		verbose++;
43 		break;
44 	case 'a':
45 		address = EARGF(usage());
46 		break;
47 	default:
48 		usage();
49 	}ARGEND
50 
51 	srv = vtlisten(address);
52 	if(srv == nil)
53 		sysfatal("vtlisten %s: %r", argv[1]);
54 
55 	while((r = vtgetreq(srv)) != nil){
56 		r->rx.msgtype = r->tx.msgtype+1;
57 		if(verbose)
58 			fprint(2, "<- %F\n", &r->tx);
59 		switch(r->tx.msgtype){
60 		case VtTping:
61 			break;
62 		case VtTgoodbye:
63 			break;
64 		case VtTread:
65 			r->rx.error = vtstrdup("no such block");
66 			r->rx.msgtype = VtRerror;
67 			break;
68 		case VtTwrite:
69 			packetsha1(r->tx.data, r->rx.score);
70 			break;
71 		case VtTsync:
72 			break;
73 		}
74 		if(verbose)
75 			fprint(2, "-> %F\n", &r->rx);
76 		vtrespond(r);
77 	}
78 	threadexitsall(nil);
79 }
80