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Diffstat (limited to 'astraceroute.c')
-rw-r--r--astraceroute.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/astraceroute.c b/astraceroute.c
index a8c289b..9919744 100644
--- a/astraceroute.c
+++ b/astraceroute.c
@@ -445,7 +445,7 @@ static int check_ipv4(uint8_t *packet, size_t len, int ttl, int id,
static void handle_ipv4(uint8_t *packet, size_t len, int dns_resolv, int latitude)
{
- char hbuff[256];
+ char hbuff[NI_MAXHOST];
struct iphdr *iph = (struct iphdr *) packet;
struct sockaddr_in sd;
struct hostent *hent;
@@ -457,7 +457,7 @@ static void handle_ipv4(uint8_t *packet, size_t len, int dns_resolv, int latitud
sd.sin_addr.s_addr = iph->saddr;
getnameinfo((struct sockaddr *) &sd, sizeof(sd),
- hbuff, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+ hbuff, sizeof(hbuff), NULL, 0, NI_NUMERICHOST);
as = geoip4_as_name(sd);
country = geoip4_country_name(sd);
@@ -511,7 +511,7 @@ static int check_ipv6(uint8_t *packet, size_t len, int ttl, int id,
static void handle_ipv6(uint8_t *packet, size_t len, int dns_resolv, int latitude)
{
- char hbuff[256];
+ char hbuff[NI_MAXHOST];
struct ip6_hdr *ip6h = (struct ip6_hdr *) packet;
struct sockaddr_in6 sd;
struct hostent *hent;
@@ -523,7 +523,7 @@ static void handle_ipv6(uint8_t *packet, size_t len, int dns_resolv, int latitud
memcpy(&sd.sin6_addr, &ip6h->ip6_src, sizeof(ip6h->ip6_src));
getnameinfo((struct sockaddr *) &sd, sizeof(sd),
- hbuff, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+ hbuff, sizeof(hbuff), NULL, 0, NI_NUMERICHOST);
as = geoip6_as_name(sd);
country = geoip6_country_name(sd);