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

void main(int argc, char **argv)
{
    struct Dir st;
    int i, n;
    if (argc < 3) {
        fprint(2, "usage: %s file length\n", argv[0]);
        exits("usage");
    }
    n = atoi(argv[2]);
    if (n < 0) {
        fprint(2, "%s: invalid length\n", argv[0]);
        exits("usage");
    }
    nulldir(&st);
    st.length = n;
    print("setting length of %s to %d\n", argv[1], n);
    i = dirwstat(argv[1], &st);
    if (i < 0) {
        fprint(2, "%s: dirwstat failed: %r\n", argv[0]);
        exits("dirwstat");
    }
    exits(0);
}