mirror of https://gogs.blitter.com/RLabs/xs
Removed :port: from 'fancy' arg syntax; more improvements to src/dest file spec logic (esp. fixing bug in multiple src file/dir args to remote dest)
This commit is contained in:
Russ Magee
parent
ca2b6efd9b
commit
1986ec6f0c
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@ -36,7 +36,6 @@ type cmdSpec struct {
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var (
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wg sync.WaitGroup
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defPort = "2000"
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)
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// Get terminal size using 'stty' command
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@ -54,36 +53,30 @@ func GetSize() (cols, rows int, err error) {
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return
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}
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func parseNonSwitchArgs(a []string, dp string) (user, host, port, path string, isDest bool, otherArgs []string) {
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func parseNonSwitchArgs(a []string) (user, host, path string, isDest bool, otherArgs []string) {
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// Whether fancyArg is src or dst file depends on flag.Args() index;
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// fancyArg as last flag.Args() element denotes dstFile
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// fancyArg as not-last flag.Args() element denotes srcFile
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var fancyUser, fancyHost, fancyPort, fancyPath string
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var fancyUser, fancyHost, fancyPath string
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for i, arg := range a {
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if strings.Contains(arg, ":") || strings.Contains(arg, "@") {
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fancyArg := strings.Split(flag.Arg(i), "@")
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var fancyHostPortPath []string
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var fancyHostPath []string
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if len(fancyArg) < 2 {
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//TODO: no user specified, use current
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fancyUser = "[default:getUser]"
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fancyHostPortPath = strings.Split(fancyArg[0], ":")
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fancyHostPath = strings.Split(fancyArg[0], ":")
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} else {
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// user@....
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fancyUser = fancyArg[0]
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fancyHostPortPath = strings.Split(fancyArg[1], ":")
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fancyHostPath = strings.Split(fancyArg[1], ":")
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}
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// [...@]host[:port[:path]]
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if len(fancyHostPortPath) > 2 {
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fancyPath = fancyHostPortPath[2]
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} else if len(fancyHostPortPath) > 1 {
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fancyPort = fancyHostPortPath[1]
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}
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fancyHost = fancyHostPortPath[0]
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if fancyPort == "" {
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fancyPort = dp
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// [...@]host[:path]
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if len(fancyHostPath) > 1 {
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fancyPath = fancyHostPath[1]
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}
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fancyHost = fancyHostPath[0]
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//if fancyPath == "" {
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// fancyPath = "."
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@ -93,19 +86,18 @@ func parseNonSwitchArgs(a []string, dp string) (user, host, port, path string, i
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isDest = true
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fmt.Println("remote path isDest")
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}
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fmt.Println("fancyArgs: user:", fancyUser, "host:", fancyHost, "port:", fancyPort, "path:", fancyPath)
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fmt.Println("fancyArgs: user:", fancyUser, "host:", fancyHost, "path:", fancyPath)
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} else {
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otherArgs = append(otherArgs, a[i])
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}
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}
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return fancyUser, fancyHost, fancyPort, fancyPath, isDest, otherArgs
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return fancyUser, fancyHost, fancyPath, isDest, otherArgs
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}
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// doCopyMode begins a secure hkexsh local<->remote file copy operation.
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func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, recurs bool, rec *cmdSpec) (err error, exitStatus int) {
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if remoteDest {
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fmt.Println("local files:", files, "remote filepath:", string(rec.cmd))
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//fmt.Fprintf(conn, "copyMode remoteDest ...\n")
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var c *exec.Cmd
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@ -114,7 +106,12 @@ func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, recurs bool,
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//os.Setenv("TERM", "vt102") // TODO: server or client option?
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cmdName := "/bin/tar"
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cmdArgs := []string{"-c", "-f", "/dev/stdout", strings.TrimSpace(files)}
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cmdArgs := []string{"-c", "-f", "/dev/stdout"}
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files = strings.TrimSpace(files)
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for _, v := range strings.Split(files, " ") {
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cmdArgs = append(cmdArgs, v)
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}
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fmt.Printf("[%v %v]\n", cmdName, cmdArgs)
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// NOTE the lack of quotes around --xform option's sed expression.
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// When args are passed in exec() format, no quoting is required
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@ -124,7 +121,11 @@ func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, recurs bool,
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c.Dir, _ = os.Getwd()
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fmt.Println("[wd:", c.Dir, "]")
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c.Stdout = conn
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c.Stderr = os.Stderr
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// Stderr sinkholing is important. Any extraneous output to tarpipe
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// messes up remote side as it's expecting pure tar data.
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// (For example, if user specifies abs paths, tar outputs
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// "Removing leading '/' from path names")
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c.Stderr = nil
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// Start the command (no pty)
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err = c.Start() // returns immediately
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@ -150,7 +151,6 @@ func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, recurs bool,
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}
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} else {
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fmt.Println("remote filepath:", string(rec.cmd), "local files:", files)
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//fmt.Fprintf(conn, "copyMode localDest ...\n")
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var c *exec.Cmd
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//os.Clearenv()
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@ -159,11 +159,6 @@ func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, recurs bool,
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cmdName := "/bin/tar"
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destPath := files
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//if path.IsAbs(files) {
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// destPath := files
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//} else {
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// destPath := strings.Join({os.Getenv("PWD"),files}, os.PathSeparator)
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//}
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cmdArgs := []string{"-x", "-C", destPath}
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fmt.Printf("[%v %v]\n", cmdName, cmdArgs)
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@ -284,13 +279,13 @@ func main() {
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var cAlg string
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var hAlg string
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var server string
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var port uint
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var cmdStr string
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var recursiveCopy bool
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var copySrc []byte
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var copyDst string
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var altUser string
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var authCookie string
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var chaffEnabled bool
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var chaffFreqMin uint
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@ -304,8 +299,7 @@ func main() {
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flag.BoolVar(&dbg, "d", false, "debug logging")
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flag.StringVar(&cAlg, "c", "C_AES_256", "cipher [\"C_AES_256\" | \"C_TWOFISH_128\" | \"C_BLOWFISH_64\"]")
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flag.StringVar(&hAlg, "m", "H_SHA256", "hmac [\"H_SHA256\"]")
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flag.StringVar(&server, "s", "localhost:"+defPort, "server hostname/address[:port]")
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flag.StringVar(&altUser, "u", "", "specify alternate user")
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flag.UintVar(&port, "p", 2000, "port")
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flag.StringVar(&authCookie, "a", "", "auth cookie")
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flag.BoolVar(&chaffEnabled, "e", true, "enabled chaff pkts (default true)")
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flag.UintVar(&chaffFreqMin, "f", 100, "chaff pkt freq min (msecs)")
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@ -325,21 +319,28 @@ func main() {
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}
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flag.Parse()
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tmpUser, tmpHost, tmpPort, tmpPath, pathIsDest, otherArgs :=
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parseNonSwitchArgs(flag.Args(), defPort /* defPort */)
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remoteUser, tmpHost, tmpPath, pathIsDest, otherArgs :=
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parseNonSwitchArgs(flag.Args())
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fmt.Println("otherArgs:", otherArgs)
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//fmt.Println("tmpHost:", tmpHost)
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//fmt.Println("tmpPath:", tmpPath)
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if tmpUser != "" {
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altUser = tmpUser
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// Set defaults if user doesn't specify user, path or port
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var uname string
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if remoteUser == "" {
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u, _ := user.Current()
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uname = u.Username
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} else {
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uname = remoteUser
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}
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if tmpHost != "" {
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server = tmpHost + ":" + tmpPort
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//fmt.Println("tmpHost sets server to", server)
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server = tmpHost + ":" + fmt.Sprintf("%d", port)
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}
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if tmpPath == "" {
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tmpPath = "."
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}
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var fileArgs string
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if !shellMode && tmpPath != "" {
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if !shellMode /*&& tmpPath != ""*/ {
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// -if pathIsSrc && len(otherArgs) > 1 ERROR
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// -else flatten otherArgs into space-delim list => copySrc
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if pathIsDest {
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@ -456,14 +457,6 @@ func main() {
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}
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}
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var uname string
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if len(altUser) == 0 {
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u, _ := user.Current()
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uname = u.Username
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} else {
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uname = altUser
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}
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if len(authCookie) == 0 {
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fmt.Printf("Gimme cookie:")
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ab, err := hkexsh.ReadPassword(int(os.Stdin.Fd()))
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@ -150,7 +150,10 @@ func runServerToClientCopyAs(who string, conn hkexnet.Conn, srcPath string, chaf
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var c *exec.Cmd
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cmdName := "/bin/tar"
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cmdArgs := []string{"-c", "-f", "-", srcPath}
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//cmdArgs := []string{"-c", "-f", "-", srcPath}
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srcDir, srcBase := path.Split(srcPath)
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cmdArgs := []string{"-c", "-C", srcDir, "-f", "-", srcBase}
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c = exec.Command(cmdName, cmdArgs...)
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//If os.Clearenv() isn't called by server above these will be seen in the
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@ -160,7 +163,11 @@ func runServerToClientCopyAs(who string, conn hkexnet.Conn, srcPath string, chaf
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c.SysProcAttr = &syscall.SysProcAttr{}
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c.SysProcAttr.Credential = &syscall.Credential{Uid: uid, Gid: gid}
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c.Stdout = conn
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c.Stderr = conn
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// Stderr sinkholing is important. Any extraneous output to tarpipe
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// messes up remote side as it's expecting pure tar data.
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// (For example, if user specifies abs paths, tar outputs
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// "Removing leading '/' from path names")
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c.Stderr = nil
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if chaffing {
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conn.EnableChaff()
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