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struct ifaddr *ifa;		struct ifaddr *ifa;
struct sbuf *sb;		struct sbuf *sb;
int error, ethno, full = 0, valid_len, max_len;		int error, ethno, full = 0, valid_len, max_len;

error = copyin(uifc, &ifc, sizeof(ifc));		error = copyin(uifc, &ifc, sizeof(ifc));
if (error != 0)		if (error != 0)
return (error);		return (error);

max_len = MAXPHYS - 1;		max_len = maxphys - 1;

CURVNET_SET(TD_TO_VNET(td));		CURVNET_SET(TD_TO_VNET(td));
/* handle the 'request buffer size' case */		/* handle the 'request buffer size' case */
if ((l_uintptr_t)ifc.ifc_buf == PTROUT(NULL)) {		if ((l_uintptr_t)ifc.ifc_buf == PTROUT(NULL)) {
ifc.ifc_len = 0;		ifc.ifc_len = 0;
IFNET_RLOCK();		IFNET_RLOCK();
CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {		CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
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