Fix errorAcn reference issues + add support for Tor specific shared library path

.gitignore

@@ -4,4 +4,6 @@ tor/tor/
 vendor/
 *.cover.out
 tmp/
-testing/tor/*
+testing/tor/*
+tor/data-dir*
+testing/data-dir*

error_acn.go

@@ -15,11 +15,11 @@ type ErrorACN struct {
 	versionCallbackCache func(string)
 }
 
-func (e ErrorACN) GetStatusCallback() func(int, string) {
+func (e *ErrorACN) GetStatusCallback() func(int, string) {
 	return e.statusCallbackCache
 }
 
-func (e ErrorACN) GetVersionCallback() func(string) {
+func (e *ErrorACN) GetVersionCallback() func(string) {
 	return e.versionCallbackCache
 }
 
@@ -27,11 +27,11 @@ func (e *ErrorACN) GetInfo(addr string) (map[string]string, error) {
 	return nil, errors.New(acnError)
 }
 
-func (e ErrorACN) GetBootstrapStatus() (int, string) {
+func (e *ErrorACN) GetBootstrapStatus() (int, string) {
 	return -1, acnError
 }
 
-func (e ErrorACN) WaitTillBootstrapped() error {
+func (e *ErrorACN) WaitTillBootstrapped() error {
 	return errors.New(acnError)
 }
 
@@ -43,24 +43,24 @@ func (e *ErrorACN) SetVersionCallback(callback func(string)) {
 	e.versionCallbackCache = callback
 }
 
-func (e ErrorACN) Restart() {
+func (e *ErrorACN) Restart() {
 }
 
-func (e ErrorACN) Open(hostname string) (net.Conn, string, error) {
+func (e *ErrorACN) Open(hostname string) (net.Conn, string, error) {
 	return nil, "", fmt.Errorf(acnError)
 }
 
-func (e ErrorACN) Listen(identity PrivateKey, port int) (ListenService, error) {
+func (e *ErrorACN) Listen(identity PrivateKey, port int) (ListenService, error) {
 	return nil, fmt.Errorf(acnError)
 }
 
-func (e ErrorACN) GetPID() (int, error) {
+func (e *ErrorACN) GetPID() (int, error) {
 	return -1, fmt.Errorf(acnError)
 }
 
-func (e ErrorACN) GetVersion() string {
+func (e *ErrorACN) GetVersion() string {
 	return acnError
 }
 
-func (e ErrorACN) Close() {
+func (e *ErrorACN) Close() {
 }

tor/torProvider.go

@@ -442,10 +442,19 @@ func newHideCmd(exePath string) process.Creator {
 		loggerDebug := &logWriter{log.LevelDebug}
 		loggerError := &logWriter{log.LevelError}
 
+		
 		cmd := exec.CommandContext(ctx, exePath, args...)
 		cmd.Stdout = loggerDebug
 		cmd.Stderr = loggerError
 		cmd.SysProcAttr = sysProcAttr
+		
+		// override tor ld_library_path if requested
+		torLdLibPath,exists := os.LookupEnv("TOR_LD_LIBRARY_PATH")
+		if exists {
+			ldLibPath := fmt.Sprintf("LD_LIBRARY_PATH=%v", torLdLibPath)
+			cmd.Env = append([]string{ldLibPath},os.Environ()...)
+		}
+		
 		return cmd, nil
 	})
 }
@@ -656,4 +665,4 @@ func dialControlPort(port int) (*control.Conn, error) {
 		return nil, err
 	}
 	return control.NewConn(textConn), nil
-}
+}