diff options
| -rw-r--r-- | src/arp.c | 24 |
1 files changed, 14 insertions, 10 deletions
@@ -110,7 +110,7 @@ static int filter_mac(int family, char *addrp, char *mac, size_t maclen, void *p /* If in lazy mode, we cache absence of ARP entries. */ int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now) { - struct arp_record *arp, **up; + struct arp_record *arp, *tmp, **up; int updated = 0; again: @@ -155,16 +155,20 @@ int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now) iface_enumerate(AF_UNSPEC, NULL, filter_mac); /* Remove all unconfirmed entries to old list. */ - for (arp = arps, up = &arps; arp; arp = arp->next) - if (arp->status == ARP_MARK) - { - *up = arp->next; - arp->next = old; - old = arp; - } - else - up = &arp->next; + for (arp = arps, up = &arps; arp; arp = tmp) + { + tmp = arp->next; + if (arp->status == ARP_MARK) + { + *up = arp->next; + arp->next = old; + old = arp; + } + else + up = &arp->next; + } + goto again; } |