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Copy link header from beginning of frame, not beginning of IP header.

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dmiller
2020-04-06 21:39:58 +00:00
parent 38023d1346
commit 5b6645e09d
1 changed files with 1 additions and 1 deletions
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2
tcpip.cc
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@@ -1612,7 +1612,7 @@ const u8 *readip_pcap(pcap_t *pd, unsigned int *len, long to_usec,
linknfo->datalinktype = datalink;
linknfo->headerlen = offset;
assert(offset <= MAX_LINK_HEADERSZ);
memcpy(linknfo->header, p, MIN(sizeof(linknfo->header), offset));
memcpy(linknfo->header, p - offset, MIN(sizeof(linknfo->header), offset));
}
if (rcvdtime)
PacketTrace::trace(PacketTrace::RCVD, (u8 *) p, *len,