ifc_buf
ifconf.ifc_buf = buf;
for (p = ifconf.ifc_buf;
p < ifconf.ifc_buf + ifconf.ifc_len;
ifc.ifc_buf = buf;
ifc.ifc_buf = buffer;
ifc.ifc_buf = buf;
ifc.ifc_buf = buf;
ifc.ifc_buf = (caddr_t) ibuf;
ifc.ifc_buf = (caddr_t)ibuf;
if (PTRIN(ifc.ifc_buf) == NULL) {
error = copyout(sbuf_data(sb), PTRIN(ifc.ifc_buf), ifc.ifc_len);
thunk.ifc.ifc_buf = PTRIN(ifc32->ifc_buf);
ifc.ifc_buf = (caddr_t)ibuf;