dsl_prop_set_int
error = dsl_prop_set_int(osname, propname,
error = dsl_prop_set_int(dsname, ZPROP_HAS_RECVD, source, 0);
int dsl_prop_set_int(const char *dsname, const char *propname,
err = dsl_prop_set_int(dsname, propname, source,