/
utils.go
93 lines (76 loc) · 1.79 KB
/
utils.go
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/*
* NETCAP - Traffic Analysis Framework
* Copyright (c) 2017 Philipp Mieden <dreadl0ck [at] protonmail [dot] ch>
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package main
import (
"flag"
"fmt"
"os"
"os/signal"
"syscall"
"github.com/dreadl0ck/netcap"
)
func printHeader() {
netcap.PrintLogo()
fmt.Println()
fmt.Println("usage examples:")
fmt.Println(" $ net.collect -privkey priv.key -addr 127.0.0.1:4200")
fmt.Println(" $ net.collect -gen-keypair")
fmt.Println()
}
// usage prints the use
func printUsage() {
printHeader()
flag.PrintDefaults()
}
func cleanup() {
fmt.Println("cleanup")
// cleanup
for p, a := range files {
// flush and close gzip writer
err := a.gWriter.Flush()
if err != nil {
panic(err)
}
err = a.gWriter.Close()
if err != nil {
panic(err)
}
// flush buffered writer
err = a.bWriter.Flush()
if err != nil {
panic(err)
}
// sync and close file handle
fmt.Println("closing file", p)
err = a.f.Sync()
if err != nil {
panic(err)
}
err = a.f.Close()
if err != nil {
panic(err)
}
}
}
func handleSignals() {
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
// start signal handler and cleanup routine
go func() {
sig := <-sigs
fmt.Println("received signal:", sig)
fmt.Println("exiting")
cleanup()
os.Exit(0)
}()
}