5bf6f7ec59
Since Go 1.5, internal package rule (see https://golang.org/s/go14internal for more details) applies to GOPATH packages. It prevents this package from loading iana package and causes package building failure. This fixes it by adding its own ICMP protocol constants and removing iana package dependency. Fix #10
go-fastping
go-fastping is a Go language's ICMP ping library inspired by AnyEvent::FastPing Perl module to send ICMP ECHO REQUEST packets quickly. Original Perl module is available at http://search.cpan.org/~mlehmann/AnyEvent-FastPing-2.01/
It hasn't been fully implemented original functions yet.
Installation
Install and update this go package with go get -u github.com/tatsushid/go-fastping
Examples
Import this package and write
p := fastping.NewPinger()
ra, err := net.ResolveIPAddr("ip4:icmp", os.Args[1])
if err != nil {
fmt.Println(err)
os.Exit(1)
}
p.AddIPAddr(ra)
p.OnRecv = func(addr *net.IPAddr, rtt time.Duration) {
fmt.Printf("IP Addr: %s receive, RTT: %v\n", addr.String(), rtt)
}
p.OnIdle = func() {
fmt.Println("finish")
}
err = p.Run()
if err != nil {
fmt.Println(err)
}
It sends an ICMP packet and wait a response. If it receives a response, it calls "receive" callback. After that, MaxRTT time passed, it calls "idle" callback. For more detail, refer godoc and if you need more example, please see "cmd/ping/ping.go".
Caution
This package implements ICMP ping using both raw socket and UDP. If your program uses this package in raw socket mode, it needs to be run as a root user.
License
go-fastping is under MIT License. See the LICENSE file for details.