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Fix arp cache lookup for Windows: avoid MIB_IPNET_TYPE_INVALID

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dmiller
2023-02-08 22:01:36 +00:00
parent 26996989ee
commit 79cd3db24c
1 changed files with 6 additions and 3 deletions
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9
libdnet-stripped/src/arp-win32.c
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@@ -123,11 +123,14 @@ arp_loop(arp_t *arp, arp_handler callback, void *arg)
entry.arp_ha.addr_bits = ETH_ADDR_BITS;
for (i = 0; i < (int)arp->iptable->dwNumEntries; i++) {
if (arp->iptable->table[i].dwPhysAddrLen != ETH_ADDR_LEN)
MIB_IP_NETROW_LH *row = &arp->iptable->table[i];
if (row->dwPhysAddrLen != ETH_ADDR_LEN ||
(row->Type != MIB_IPNET_TYPE_DYNAMIC &&
row->Type != MIB_IPNET_TYPE_STATIC))
continue;
entry.arp_pa.addr_ip = arp->iptable->table[i].dwAddr;
entry.arp_pa.addr_ip = row->dwAddr;
memcpy(&entry.arp_ha.addr_eth,
arp->iptable->table[i].bPhysAddr, ETH_ADDR_LEN);
row->bPhysAddr, ETH_ADDR_LEN);
if ((ret = (*callback)(&entry, arg)) != 0)
return (ret);