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Refine IpNeighbour parser

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This commit is contained in:
Mygod
2018-12-19 13:05:56 +08:00
parent 87f696e6cc
commit 97fb67d7fd
1 changed files with 3 additions and 3 deletions
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6
mobile/src/main/java/be/mygod/vpnhotspot/net/IpNeighbour.kt
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@@ -25,11 +25,11 @@ data class IpNeighbour(val ip: InetAddress, val dev: String, val lladdr: String,
fun parse(line: String): IpNeighbour? {
return try {
val match = parser.matchEntire(line)!!
val ip = parseNumericAddress(match.groupValues[2])
val dev = match.groupValues[3]
val ip = parseNumericAddress(match.groupValues[2]) // by regex, ip is non-empty
val dev = match.groupValues[3] // by regex, dev is non-empty as well
var lladdr = checkLladdrNotLoopback(match.groupValues[5])
// use ARP as fallback
if (dev.isNotEmpty() && lladdr.isEmpty()) lladdr = checkLladdrNotLoopback(arp()
if (lladdr.isEmpty()) lladdr = checkLladdrNotLoopback(arp()
.asSequence()
.filter { parseNumericAddress(it[ARP_IP_ADDRESS]) == ip && it[ARP_DEVICE] == dev }
.map { it[ARP_HW_ADDRESS] }