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Stubbed tun option parsing 

Signed-off-by: Russ Magee <rmagee@gmail.com>
This commit is contained in:
Russ Magee 2018-11-11 23:26:22 -08:00
parent d9453835bf
commit a9ebb102bd
1 changed files with 49 additions and 47 deletions
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96
hkexsh/hkexsh.go
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@ -55,47 +55,6 @@ func GetSize() (cols, rows int, err error) {
return
}
func parseNonSwitchArgs(a []string) (user, host, path string, isDest bool, otherArgs []string) {
// Whether fancyArg is src or dst file depends on flag.Args() index;
// fancyArg as last flag.Args() element denotes dstFile
// fancyArg as not-last flag.Args() element denotes srcFile
var fancyUser, fancyHost, fancyPath string
for i, arg := range a {
if strings.Contains(arg, ":") || strings.Contains(arg, "@") {
fancyArg := strings.Split(flag.Arg(i), "@")
var fancyHostPath []string
if len(fancyArg) < 2 {
//TODO: no user specified, use current
fancyUser = "[default:getUser]"
fancyHostPath = strings.Split(fancyArg[0], ":")
} else {
// user@....
fancyUser = fancyArg[0]
fancyHostPath = strings.Split(fancyArg[1], ":")
}
// [...@]host[:path]
if len(fancyHostPath) > 1 {
fancyPath = fancyHostPath[1]
}
fancyHost = fancyHostPath[0]
//if fancyPath == "" {
// fancyPath = "."
//}
if i == len(a)-1 {
isDest = true
//fmt.Println("remote path isDest")
}
//fmt.Println("fancyArgs: user:", fancyUser, "host:", fancyHost, "path:", fancyPath)
} else {
otherArgs = append(otherArgs, a[i])
}
}
return fancyUser, fancyHost, fancyPath, isDest, otherArgs
}
// doCopyMode begins a secure hkexsh local<->remote file copy operation.
func doCopyMode(conn *hkexnet.Conn, remoteDest bool, files string, rec *hkexsh.Session) (err error, exitStatus uint32) {
if remoteDest {
@ -355,6 +314,52 @@ func reqTunnel(hc *hkexnet.Conn, lp uint16, p string /*net.Addr*/, rp uint16) {
return
}
func parseNonSwitchArgs(a []string) (user, host, path string, isDest bool, otherArgs []string) {
// Whether fancyArg is src or dst file depends on flag.Args() index;
// fancyArg as last flag.Args() element denotes dstFile
// fancyArg as not-last flag.Args() element denotes srcFile
var fancyUser, fancyHost, fancyPath string
for i, arg := range a {
if strings.Contains(arg, ":") || strings.Contains(arg, "@") {
fancyArg := strings.Split(flag.Arg(i), "@")
var fancyHostPath []string
if len(fancyArg) < 2 {
//TODO: no user specified, use current
fancyUser = "[default:getUser]"
fancyHostPath = strings.Split(fancyArg[0], ":")
} else {
// user@....
fancyUser = fancyArg[0]
fancyHostPath = strings.Split(fancyArg[1], ":")
}
// [...@]host[:path]
if len(fancyHostPath) > 1 {
fancyPath = fancyHostPath[1]
}
fancyHost = fancyHostPath[0]
//if fancyPath == "" {
// fancyPath = "."
//}
if i == len(a)-1 {
isDest = true
//fmt.Println("remote path isDest")
}
//fmt.Println("fancyArgs: user:", fancyUser, "host:", fancyHost, "path:", fancyPath)
} else {
otherArgs = append(otherArgs, a[i])
}
}
return fancyUser, fancyHost, fancyPath, isDest, otherArgs
}
func launchTuns(conn *hkexnet.Conn, remoteHost string, tunSpecs string) {
remAddrs, _ := net.LookupHost(remoteHost)
reqTunnel(conn, 6001, remAddrs[0], 7001)
}
// hkexsh - a client for secure shell and file copy operations.
//
// While conforming to the basic net.Conn interface HKex.Conn has extra
@ -410,7 +415,7 @@ func main() {
// hkexsh accepts a command (-x) but not
// a srcpath (-r) or dstpath (-t)
flag.StringVar(&cmdStr, "x", "", "`command` to run (if not specified run interactive shell)")
flag.StringVar(&tunSpecStr, "t", "", "`tunnelspec` localPort:remotePort[,localPort:remotePort,...]")
flag.StringVar(&tunSpecStr, "T", "", "`tunnelspec` localPort:remotePort[,localPort:remotePort,...]")
flag.BoolVar(&gopt, "g", false, "ask server to generate authtoken")
shellMode = true
flag.Usage = UsageShell
@ -643,15 +648,12 @@ func main() {
go func() {
for {
time.Sleep(time.Duration(2) * time.Second)
conn.WritePacket([]byte{0,0}, hkexnet.CSOTunKeepAlive)
conn.WritePacket([]byte{0, 0}, hkexnet.CSOTunKeepAlive)
}
}()
if shellMode {
// TESTING - tunnel
remAddrs, _ := net.LookupHost(remoteHost)
reqTunnel(&conn, 6001, remAddrs[0], 7001)
// END TESTING - tunnel
launchTuns(&conn, remoteHost, tunSpecStr)
doShellMode(isInteractive, &conn, oldState, rec)
} else { // copyMode