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#include <u.h>
#include <libc.h>
#include <venti.h>
#include <thread.h>

char *host;

void
usage(void)
{
        fprint(2, "usage: mkroot [-h host] name type score blocksize prev\n");
        threadexitsall("usage");
}

void
threadmain(int argc, char *argv[])
{
        uchar score[VtScoreSize];
        uchar buf[VtRootSize];
        VtConn *z;
        VtRoot root;

        ARGBEGIN{
        case 'h':
                host = EARGF(usage());
                break;
        default:
                usage();
                break;
        }ARGEND

        if(argc != 5)
                usage();

        fmtinstall('V', vtscorefmt);
        fmtinstall('F', vtfcallfmt);

        strecpy(root.name, root.name+sizeof root.name, argv[0]);
        strecpy(root.type, root.type+sizeof root.type, argv[1]);
        if(vtparsescore(argv[2], nil, root.score) < 0)
                sysfatal("bad score '%s'", argv[2]);
        root.blocksize = atoi(argv[3]);
        if(vtparsescore(argv[4], nil, root.prev) < 0)
                sysfatal("bad score '%s'", argv[4]);
        vtrootpack(&root, buf);

        z = vtdial(host);
        if(z == nil)
                sysfatal("could not connect to server: %r");

        if(vtconnect(z) < 0)
                sysfatal("vtconnect: %r");

        if(vtwrite(z, score, VtRootType, buf, VtRootSize) < 0)
                sysfatal("vtwrite: %r");
        if(vtsync(z) < 0)
                sysfatal("vtsync: %r");
        vthangup(z);
        print("%V\n", score);
        threadexitsall(0);
}