if_nametoindex
unsigned int if_nametoindex(const char *);
if ((index = if_nametoindex(ifname)) == 0) {
if_nametoindex(logintname);
if_nametoindex(logintname);
if ((val = if_nametoindex(arg)) == 0) {
rta_ifp->sdl_index = if_nametoindex(pi->pi_name);
rta_ifp->sdl_index = if_nametoindex(pi->pi_name);
rta_ifp->sdl_index = if_nametoindex(name);
if ((ifindex = if_nametoindex(lifname)) == 0) {
if ((ifindex = if_nametoindex(arg)) == 0) {
newrt->ri_ifp.sdl.sdl_index = if_nametoindex(newrt->ri_ifp_str);
if_index = if_nametoindex((const char *)device);
w_ifp.sdl_index = if_nametoindex(ifname);
w_ifp.sdl_index = if_nametoindex(ifname);
if ((ifindex = if_nametoindex(pval)) == 0)
scopeid = if_nametoindex(scope);
if ((*sin6_scope_id = if_nametoindex(zone)) != 0) {
index = if_nametoindex(lifrp->lifr_name);
if_nametoindex(lifrp->lifr_name);
extern unsigned if_nametoindex(const char *);