hopefully fix ping bugs introduced in [6443]

SVN-Revision: 6505
master
Felix Fietkau 18 years ago
parent eb83bc789a
commit 07cb246bd7
  1. 13
      package/busybox/patches/450-truncated_ping_results.patch

@ -5,7 +5,7 @@
struct icmp *pkt;
int pingsock, c;
- char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
+ char packet[datalen + MAXIPLEN + MAXICMPLEN];
+ char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN];
pingsock = create_icmp_socket();
@ -18,17 +18,6 @@
(struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in));
if (c < 0) {
@@ -257,8 +257,8 @@
gettimeofday(&tv, NULL);
- /* discard if too short */
- if (sz < (datalen + ICMP_MINLEN))
+ /* discard if too short / long */
+ if (sz < (datalen + ICMP_MINLEN) || sz > (MAXICMPLEN))
return;
/* check IP header */
@@ -274,6 +274,10 @@
++nreceived;
tp = (struct timeval *) icmppkt->icmp_data;

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