venti updates
diff --git a/src/cmd/venti/root.c b/src/cmd/venti/root.c
new file mode 100644
index 0000000..5d67ad3
--- /dev/null
+++ b/src/cmd/venti/root.c
@@ -0,0 +1,72 @@
+#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(VtMaxLumpSize);
+
+ 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, VtMaxLumpSize);
+ 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);
+}
