/
main.go
57 lines (46 loc) · 1.18 KB
/
main.go
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package main
import (
"flag"
"fmt"
"log"
"net/http"
"os"
"time"
)
type Config struct {
Help bool
TraceTimeout time.Duration
ListenPort int
ConcurrentTraces int
}
var mainConfig Config
func init() {
flag.BoolVar(&mainConfig.Help, "?", false, "display help")
flag.DurationVar(&mainConfig.TraceTimeout, "t", time.Second*30, "max time allowed for a trace")
flag.IntVar(&mainConfig.ListenPort, "p", 80, "http listen port")
flag.IntVar(&mainConfig.ConcurrentTraces, "c", 30, "max concurrent traces")
flag.Usage = func() {
fmt.Fprintln(os.Stderr, "Usage: tracetcpserver [options]")
flag.PrintDefaults()
}
}
func exitOnError(err error) {
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
// Linux: to bind to ports <1024: sudo setcap cap_net_bind_service=+ep tracetcpserver
func main() {
flag.Parse()
if mainConfig.Help {
flag.Usage()
os.Exit(1)
}
http.HandleFunc("/editcmd/", editCommandHandler)
http.HandleFunc("/exec/", execHandler)
http.HandleFunc("/dotrace/", doTraceHandler)
log.Printf("Listening on port %d", mainConfig.ListenPort)
err := http.ListenAndServe(fmt.Sprintf(":%d", mainConfig.ListenPort), nil)
exitOnError(err)
}