tree-wide: replace if_indextoname() with format_ifname()

src/basic/socket-util.c

@@ -1389,7 +1389,7 @@ int socket_bind_to_ifname(int fd, const char *ifname) {
 }
 
 int socket_bind_to_ifindex(int fd, int ifindex) {
-        char ifname[IFNAMSIZ] = "";
+        char ifname[IF_NAMESIZE + 1];
 
         assert(fd >= 0);
 
@@ -1407,7 +1407,7 @@ int socket_bind_to_ifindex(int fd, int ifindex) {
                 return -errno;
 
         /* Fall back to SO_BINDTODEVICE on kernels < 5.0 which didn't have SO_BINDTOIFINDEX */
-        if (!if_indextoname(ifindex, ifname))
+        if (!format_ifname(ifindex, ifname))
                 return -errno;
 
         return socket_bind_to_ifname(fd, ifname);