| 1 | --- a/networking/ping.c |
| 2 | +++ b/networking/ping.c |
| 3 | @@ -79,6 +79,7 @@ static int in_cksum(unsigned short *buf, |
| 4 | /* simple version */ |
| 5 | |
| 6 | static char *hostname; |
| 7 | +static unsigned datalen = DEFDATALEN; |
| 8 | |
| 9 | static void noresp(int ign UNUSED_PARAM) |
| 10 | { |
| 11 | @@ -91,7 +92,7 @@ static void ping4(len_and_sockaddr *lsa) |
| 12 | struct sockaddr_in pingaddr; |
| 13 | struct icmp *pkt; |
| 14 | int pingsock, c; |
| 15 | - char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN]; |
| 16 | + char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN]; |
| 17 | |
| 18 | pingsock = create_icmp_socket(); |
| 19 | pingaddr = lsa->u.sin; |
| 20 | @@ -101,7 +102,7 @@ static void ping4(len_and_sockaddr *lsa) |
| 21 | pkt->icmp_type = ICMP_ECHO; |
| 22 | pkt->icmp_cksum = in_cksum((unsigned short *) pkt, sizeof(packet)); |
| 23 | |
| 24 | - c = xsendto(pingsock, packet, DEFDATALEN + ICMP_MINLEN, |
| 25 | + c = xsendto(pingsock, packet, datalen + ICMP_MINLEN, |
| 26 | (struct sockaddr *) &pingaddr, sizeof(pingaddr)); |
| 27 | |
| 28 | /* listen for replies */ |
| 29 | @@ -135,7 +136,7 @@ static void ping6(len_and_sockaddr *lsa) |
| 30 | struct icmp6_hdr *pkt; |
| 31 | int pingsock, c; |
| 32 | int sockopt; |
| 33 | - char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN]; |
| 34 | + char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN]; |
| 35 | |
| 36 | pingsock = create_icmp6_socket(); |
| 37 | pingaddr = lsa->u.sin6; |
| 38 | @@ -147,7 +148,7 @@ static void ping6(len_and_sockaddr *lsa) |
| 39 | sockopt = offsetof(struct icmp6_hdr, icmp6_cksum); |
| 40 | setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt)); |
| 41 | |
| 42 | - c = xsendto(pingsock, packet, DEFDATALEN + sizeof (struct icmp6_hdr), |
| 43 | + c = xsendto(pingsock, packet, datalen + sizeof (struct icmp6_hdr), |
| 44 | (struct sockaddr *) &pingaddr, sizeof(pingaddr)); |
| 45 | |
| 46 | /* listen for replies */ |
| 47 | |
