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--- a/networking/ping.c
+++ b/networking/ping.c
@@ -79,6 +79,7 @@ static int in_cksum(unsigned short *buf,
/* simple version */
static char *hostname;
+static unsigned datalen = DEFDATALEN;
static void noresp(int ign UNUSED_PARAM)
{
@@ -91,7 +92,7 @@ static void ping4(len_and_sockaddr *lsa)
struct sockaddr_in pingaddr;
struct icmp *pkt;
int pingsock, c;
- char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
+ char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN];
pingsock = create_icmp_socket();
pingaddr = lsa->u.sin;
@@ -101,7 +102,7 @@ static void ping4(len_and_sockaddr *lsa)
pkt->icmp_type = ICMP_ECHO;
pkt->icmp_cksum = in_cksum((unsigned short *) pkt, sizeof(packet));
- c = xsendto(pingsock, packet, DEFDATALEN + ICMP_MINLEN,
+ c = xsendto(pingsock, packet, datalen + ICMP_MINLEN,
(struct sockaddr *) &pingaddr, sizeof(pingaddr));
/* listen for replies */
@@ -135,7 +136,7 @@ static void ping6(len_and_sockaddr *lsa)
struct icmp6_hdr *pkt;
int pingsock, c;
int sockopt;
- char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
+ char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN];
pingsock = create_icmp6_socket();
pingaddr = lsa->u.sin6;
@@ -147,7 +148,7 @@ static void ping6(len_and_sockaddr *lsa)
sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
- c = xsendto(pingsock, packet, DEFDATALEN + sizeof (struct icmp6_hdr),
+ c = xsendto(pingsock, packet, datalen + sizeof (struct icmp6_hdr),
(struct sockaddr *) &pingaddr, sizeof(pingaddr));
/* listen for replies */
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