func addrInAddrs(a ma.Multiaddr, as []ma.Multiaddr) bool {
for _, b := range as {
if a.Equal(b) {
return true
}
}
return false
}
// AddrInList returns whether or not an address is part of a list.
// this is useful to check if NAT is happening (or other bugs?)
func AddrInList(addr ma.Multiaddr, list []ma.Multiaddr) bool {
for _, addr2 := range list {
if addr.Equal(addr2) {
return true
}
}
return false
}
// CheckNATWarning checks if our observed addresses differ. if so,
// informs the user that certain things might not work yet
func CheckNATWarning(observed, expected ma.Multiaddr, listen []ma.Multiaddr) {
if observed.Equal(expected) {
return
}
if !AddrInList(observed, listen) { // probably a nat
log.Warningf(natWarning, observed, listen)
}
}