VIFF_QUERIER
v->uv_flags &= ~VIFF_QUERIER;
v->uv_flags |= VIFF_QUERIER;
v->uv_flags &= ~VIFF_QUERIER;
if (v->uv_flags & VIFF_QUERIER) fprintf(fp, " querier");
v->uv_flags |= VIFF_QUERIER;
v->uv_flags &= ~VIFF_QUERIER;
if (v->uv_flags & VIFF_QUERIER) {
if ((v->uv_flags & VIFF_QUERIER) &&
v->uv_flags &= ~VIFF_QUERIER;
if (!(v->uv_flags & VIFF_QUERIER) || (v->uv_flags & VIFF_IGMPV1))
if (vflags & VIFF_QUERIER)