func newLogger(opts string) error {
l := &logger{w: os.Stderr}
for _, o := range strings.Split(opts, ",") {
switch o {
case "stderr":
case "stdout", "out", "o":
l.w = os.Stdout
case "progress", "p":
l.progress = true
case "time", "t":
l.start = time.Now()
case "error", "err", "e":
l.e = true
case "warning", "warn", "w":
l.warn = true
case "debug", "d":
l.debug, l.progress = true, true
config.SetDebug()
case "slow", "s":
l.slow, l.progress = true, true
config.SetSlow()
case "unknown", "u":
l.unknown = true
case "known", "k":
l.known = true
default:
return fmt.Errorf("unknown -log input %s; expect be comma-separated list of stdout,out,o,progress,p,error,err,e,warning,warn,w,debug,d,slow,s,unknown,u,known,k", opts)
}
}
if config.Debug() || config.Slow() {
config.SetOut(l.w)
}
lg = l
return nil
}
func main() {
flag.Parse()
/*//UNCOMMENT TO RUN PROFILER
go func() {
log.Println(http.ListenAndServe("localhost:6060", nil))
}()*/
if *home != config.Home() {
config.SetHome(*home)
}
if *sig != config.SignatureBase() {
config.SetSignature(*sig)
}
if *version {
version := config.Version()
fmt.Printf("siegfried version: %d.%d.%d\n", version[0], version[1], version[2])
return
}
if *update {
msg, err := updateSigs()
if err != nil {
log.Fatalf("Error: failed to update signature file, %v", err)
}
fmt.Println(msg)
return
}
// during parallel scanning or in server mode, unsafe to access the last read buffer - so can't unzip or hash
if *multi > 1 || *serve != "" {
if *archive {
log.Fatalln("Error: cannot scan archive formats when running in parallel mode")
}
if *hashf != "" {
log.Fatalln("Error: cannot calculate file checksum when running in parallel mode")
}
}
if err := setHash(); err != nil {
log.Fatal(err)
}
if *serve != "" || *fprflag {
s, err := siegfried.Load(config.Signature())
if err != nil {
log.Fatalf("Error: error loading signature file, got: %v", err)
}
if *serve != "" {
log.Printf("Starting server at %s. Use CTRL-C to quit.\n", *serve)
listen(*serve, s)
return
}
log.Printf("FPR server started at %s. Use CTRL-C to quit.\n", config.Fpr())
serveFpr(config.Fpr(), s)
return
}
if flag.NArg() != 1 {
log.Fatalln("Error: expecting a single file or directory argument")
}
s, err := siegfried.Load(config.Signature())
if err != nil {
log.Fatalf("Error: error loading signature file, got: %v", err)
}
var w writer
switch {
case *debug:
config.SetDebug()
w = debugWriter{}
case *slow:
config.SetSlow()
w = &slowWriter{os.Stdout}
case *csvo:
w = newCSV(os.Stdout)
case *jsono:
w = newJSON(os.Stdout)
case *droido:
w = newDroid(os.Stdout)
case *knowno:
w = &knownWriter{true, os.Stdout}
case *unknowno:
w = &knownWriter{false, os.Stdout}
default:
w = newYAML(os.Stdout)
}
// support reading list files from stdin
if flag.Arg(0) == "-" {
w.writeHead(s)
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
info, err := os.Stat(scanner.Text())
if err != nil || info.IsDir() {
w.writeFile(scanner.Text(), 0, "", nil, fmt.Errorf("failed to identify %s (in scanning mode, inputs must all be files and not directories), got: %v", scanner.Text(), err), nil)
} else {
identifyFile(w, s, scanner.Text(), info.Size(), info.ModTime().Format(time.RFC3339))
}
}
w.writeTail()
os.Exit(0)
}
info, err := os.Stat(flag.Arg(0))
if err != nil {
log.Fatalf("Error: error getting info for %v, got: %v", flag.Arg(0), err)
}
if info.IsDir() {
if config.Debug() {
log.Fatalln("Error: when scanning in debug mode, give a file rather than a directory argument")
}
w.writeHead(s)
if *multi > 16 {
*multi = 16
}
if *multi > 1 {
multiIdentifyP(w, s, flag.Arg(0), *nr)
} else {
multiIdentifyS(w, s, flag.Arg(0), *nr)
}
w.writeTail()
os.Exit(0)
}
w.writeHead(s)
identifyFile(w, s, flag.Arg(0), info.Size(), info.ModTime().Format(time.RFC3339))
w.writeTail()
os.Exit(0)
}