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hopefully fix ping bugs introduced in [6443]
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6505 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -5,7 +5,7 @@
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struct icmp *pkt;
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int pingsock, c;
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- char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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+ char packet[datalen + MAXIPLEN + MAXICMPLEN];
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+ char packet[datalen + ICMP_MINLEN + MAXIPLEN + MAXICMPLEN];
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pingsock = create_icmp_socket();
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@ -18,17 +18,6 @@
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(struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in));
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if (c < 0) {
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@@ -257,8 +257,8 @@
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gettimeofday(&tv, NULL);
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- /* discard if too short */
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- if (sz < (datalen + ICMP_MINLEN))
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+ /* discard if too short / long */
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+ if (sz < (datalen + ICMP_MINLEN) || sz > (MAXICMPLEN))
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return;
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/* check IP header */
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@@ -274,6 +274,10 @@
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++nreceived;
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tp = (struct timeval *) icmppkt->icmp_data;
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