sys/src/cmd/venti/root.c

   1 #include <u.h>
   2 #include <libc.h>
   3 #include <venti.h>
   4 #include <libsec.h>
   5 #include <thread.h>
   6
   7 void
   8 usage(void)
   9 {
  10         fprint(2, "usage: root [-h host] score\n");
  11         threadexitsall("usage");
  12 }
  13
  14 void
  15 threadmain(int argc, char *argv[])
  16 {
  17         int i, n;
  18         uchar score[VtScoreSize];
  19         uchar *buf;
  20         VtConn *z;
  21         char *host;
  22         VtRoot root;
  23
  24         fmtinstall('F', vtfcallfmt);
  25         fmtinstall('V', vtscorefmt);
  26         quotefmtinstall();
  27
  28         host = nil;
  29         ARGBEGIN{
  30         case 'h':
  31                 host = EARGF(usage());
  32                 break;
  33         default:
  34                 usage();
  35                 break;
  36         }ARGEND
  37
  38         if(argc == 0)
  39                 usage();
  40
  41         buf = vtmallocz(VtMaxLumpSize);
  42
  43         z = vtdial(host);
  44         if(z == nil)
  45                 sysfatal("could not connect to server: %r");
  46
  47         if(vtconnect(z) < 0)
  48                 sysfatal("vtconnect: %r");
  49
  50         for(i=0; i<argc; i++){
  51                 if(vtparsescore(argv[i], nil, score) < 0){
  52                         fprint(2, "cannot parse score '%s': %r\n", argv[i]);
  53                         continue;
  54                 }
  55                 n = vtread(z, score, VtRootType, buf, VtMaxLumpSize);
  56                 if(n < 0){
  57                         fprint(2, "could not read block %V: %r\n", score);
  58                         continue;
  59                 }
  60                 if(n != VtRootSize){
  61                         fprint(2, "block %V is wrong size %d != 300\n", score, n);
  62                         continue;
  63                 }
  64                 if(vtrootunpack(&root, buf) < 0){
  65                         fprint(2, "unpacking block %V: %r\n", score);
  66                         continue;
  67                 }
  68                 print("%V: %q %q %V %d %V\n", score, root.name, root.type, root.score, root.blocksize, root.prev);
  69         }
  70         vthangup(z);
  71         threadexitsall(0);
  72 }