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Add FileSniffer constructor with FILE pointer as pcap source (#499)

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This commit is contained in:
Tobias Specht
2023-04-30 18:44:49 +02:00
committed by GitHub
parent df509e7e36
commit ba0c820852
2 changed files with 48 additions and 2 deletions
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20
include/tins/sniffer.h
View File

@@ -406,10 +406,17 @@ private:
*/
class TINS_API FileSniffer : public BaseSniffer {
public:
/**
* \brief Constructs an instance of FileSniffer.
* \param fp The pcap file which will be parsed.
* \param configuration A SnifferConfiguration to be used on the file.
*/
FileSniffer(FILE *fp, const SnifferConfiguration& configuration);
/**
* \brief Constructs an instance of FileSniffer.
* \param file_name The pcap file which will be parsed.
* \param filter A capture filter to be used on the file.(optional);
* \param configuration A SnifferConfiguration to be used on the file.
*/
FileSniffer(const std::string& file_name, const SnifferConfiguration& configuration);
@@ -418,9 +425,18 @@ public:
*
* \brief Constructs an instance of FileSniffer.
* \param file_name The pcap file which will be parsed.
* \param filter A capture filter to be used on the file.(optional);
* \param filter A capture filter to be used on the file. (optional)
*/
FileSniffer(const std::string& file_name, const std::string& filter = "");
/**
* \deprecated Use the constructor that takes a SnifferConfiguration instead.
*
* \brief Constructs an instance of FileSniffer.
* \param fp The pcap file which will be parsed.
* \param filter A capture filter to be used on the file. (optional)
*/
FileSniffer(FILE *fp, const std::string& filter = "");
};
template <typename T>

30
src/sniffer.cpp
View File

@@ -391,6 +391,20 @@ void Sniffer::set_rfmon(bool rfmon_enabled) {
// **************************** FileSniffer ****************************
FileSniffer::FileSniffer(FILE *fp,
const SnifferConfiguration& configuration) {
char error[PCAP_ERRBUF_SIZE];
pcap_t* phandle = pcap_fopen_offline(fp, error);
if (!phandle) {
throw pcap_error(error);
}
set_pcap_handle(phandle);
// Configure the sniffer
configuration.configure_sniffer_pre_activation(*this);
}
FileSniffer::FileSniffer(const string& file_name,
const SnifferConfiguration& configuration) {
char error[PCAP_ERRBUF_SIZE];
@@ -420,6 +434,22 @@ FileSniffer::FileSniffer(const string& file_name, const string& filter) {
config.configure_sniffer_pre_activation(*this);
}
FileSniffer::FileSniffer(FILE *fp, const string& filter) {
SnifferConfiguration config;
config.set_filter(filter);
char error[PCAP_ERRBUF_SIZE];
pcap_t* phandle = pcap_fopen_offline(fp, error);
if (!phandle) {
throw pcap_error(error);
}
set_pcap_handle(phandle);
// Configure the sniffer
config.configure_sniffer_pre_activation(*this);
}
// ************************ SnifferConfiguration ************************
const unsigned SnifferConfiguration::DEFAULT_SNAP_LEN = 65535;