package agent

import (
	"fmt"
	"hash/fnv"
)

// HostIfaceName returns the deterministic per-pod host-side veth name
// "flock<8hex>". 8 hex chars of FNV-1a-32(containerID) yields a 13-char
// name, well under Linux's 15-char IFNAMSIZ limit.
func HostIfaceName(containerID string) string {
	h := fnv.New32a()
	_, _ = h.Write([]byte(containerID))
	return fmt.Sprintf("flock%08x", h.Sum32())
}