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OfflinePacketFilter: avoid leaks on error in init

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This commit is contained in:
Derrick Lyndon Pallas
2019-04-11 18:10:56 +00:00
parent 3385df9cc9
commit d74520768b
1 changed files with 7 additions and 1 deletions
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8
src/offline_packet_filter.cpp
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@@ -58,8 +58,14 @@ void OfflinePacketFilter::init(const string& pcap_filter,
link_type,
snap_len
);
if (!handle_) {
throw pcap_open_failed();
}
if (pcap_compile(handle_, &filter_, pcap_filter.c_str(), 1, 0xffffffff) == -1) {
throw invalid_pcap_filter(pcap_geterr(handle_));
string error(pcap_geterr(handle_));
pcap_freecode(&filter_);
pcap_close(handle_);
throw invalid_pcap_filter(error.c_str());
}
}