Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <bio.h>

void
Bpass(Biobuf *bin, Biobuf *bout, int n)
{
        char buf[8192];
        int m;

        while(n > 0) {
                m = sizeof buf;
                if(m > n)
                        m = n;
                m = Bread(bin, buf, m);
                if(m <= 0) {
                        fprint(2, "corrupt archive\n");
                        exits("notdone");
                }
                Bwrite(bout, buf, m);
                n -= m;
        }
        assert(n == 0);
}

void
main(int argc, char **argv)
{
        char *p, *f[10];
        Biobuf bin, bout;
        int nf;
        ulong d, size;

        if(argc != 2) {
                fprint(2, "usage: cat mkfs-archive | touchfs date (in seconds)\n");
                exits("usage");
        }

        d = strtoul(argv[1], 0, 0);

        quotefmtinstall();
        Binit(&bin, 0, OREAD);
        Binit(&bout, 1, OWRITE);

        while(p = Brdline(&bin, '\n')) {
                p[Blinelen(&bin)-1] = '\0';
                if(strcmp(p, "end of archive") == 0) {
                        Bprint(&bout, "end of archive\n");
                        exits(0);
                }

                nf = tokenize(p, f, nelem(f));
                if(nf != 6) {
                        fprint(2, "corrupt archive\n");
                        exits("notdone");
                }

                Bprint(&bout, "%q %q %q %q %lud %q\n",
                        f[0], f[1], f[2], f[3], d, f[5]);

                size = strtoul(f[5], 0, 0);
                Bpass(&bin, &bout, size);
        }
        fprint(2, "premature end of archive\n");
        exits("notdone");
}