diff options
| -rw-r--r-- | proto_lldp.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/proto_lldp.c b/proto_lldp.c index 4f71ec6..1640d19 100644 --- a/proto_lldp.c +++ b/proto_lldp.c @@ -88,7 +88,7 @@ static int lldp_print_net_addr(const uint8_t *addr, size_t addrlen) { uint8_t af; - char buf[64]; + char buf[64] = {0}; if (addrlen < 1) return -EINVAL; @@ -99,13 +99,21 @@ static int lldp_print_net_addr(const uint8_t *addr, size_t addrlen) case IANA_AF_IPV4: if (addrlen < 4) return -EINVAL; - inet_ntop(AF_INET, addr, buf, sizeof(buf)); + if (inet_ntop(AF_INET, addr, buf, sizeof(buf)) == NULL) { + tprintf("[MALFORMED ADDR]"); + return 0; + } + tprintf("%s", buf); break; case IANA_AF_IPV6: if (addrlen < 16) return -EINVAL; - inet_ntop(AF_INET6, addr, buf, sizeof(buf)); + if (inet_ntop(AF_INET6, addr, buf, sizeof(buf)) == NULL) { + tprintf("[MALFORMED ADDR]"); + return 0; + } + tprintf("%s", buf); break; case IANA_AF_802: |