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Sanity check in pcap_recieve to avoid crash. Fixes #313

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dmiller
2016-03-07 16:44:52 +00:00
parent acd525315d
commit 3749c04310
1 changed files with 3 additions and 0 deletions
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3
nse_nsock.cc
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@@ -1043,6 +1043,9 @@ static int l_pcap_receive (lua_State *L)
{
nsock_pool nsp = get_pool(L);
nse_nsock_udata *nu = check_nsock_udata(L, 1, true);
if (!nu->is_pcap) {
return nseU_safeerror(L, "not a pcap socket");
}
NSOCK_UDATA_ENSURE_OPEN(L, nu);
nu->nseid = nsock_pcap_read_packet(nsp, nu->nsiod, pcap_receive_handler,
nu->timeout, nu);