Clean up remoting project

remoting/host/user_authenticator_pam.cc

Index: remoting/host/user_authenticator_pam.cc
diff --git a/remoting/host/user_authenticator_pam.cc b/remoting/host/user_authenticator_pam.cc
deleted file mode 100644
index 5a45f4c37ceb7badcfd0ed77942c0159635281d6..0000000000000000000000000000000000000000
--- a/remoting/host/user_authenticator_pam.cc
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "remoting/host/user_authenticator_pam.h"
-
-#include <stdlib.h>
-
-#include <string>
-
-#include <security/pam_appl.h>
-
-namespace remoting {
-
-static const char kPamServiceName[] = "chromoting";
-
-UserAuthenticatorPam::UserAuthenticatorPam() {
-}
-
-UserAuthenticatorPam::~UserAuthenticatorPam() {
-}
-
-bool UserAuthenticatorPam::Authenticate(const std::string& username,
-                                        const std::string& password) {
-  username_ = username;
-  password_ = password;
-  pam_conv conversation;
-  conversation.conv = ConvFunction;
-  conversation.appdata_ptr = static_cast<void*>(this);
-  // TODO(lambroslambrou): Allow PAM service name to be configurable.
-  pam_handle_t* pam_handle;
-  if (pam_start(kPamServiceName, username_.c_str(),
-                &conversation, &pam_handle) != PAM_SUCCESS) {
-    return false;
-  }
-
-  // TODO(lambroslambrou): Move to separate thread.
-  int pam_status = pam_authenticate(pam_handle, 0);
-  pam_end(pam_handle, pam_status);
-  return pam_status == PAM_SUCCESS;
-}
-
-// static
-int UserAuthenticatorPam::ConvFunction(int num_msg,
-                                       const pam_message** msg,
-                                       pam_response** resp,
-                                       void* appdata_ptr) {
-  if (num_msg <= 0)
-    return PAM_CONV_ERR;
-  UserAuthenticatorPam* user_auth =
-      static_cast<UserAuthenticatorPam*>(appdata_ptr);
-  // Must allocate with malloc(), as the calling PAM module will
-  // release the memory with free().
-  pam_response* resp_tmp = static_cast<pam_response*>(
-      malloc(num_msg * sizeof(pam_response)));
-  if (resp_tmp == NULL)
-    return PAM_CONV_ERR;
-
-  bool raise_error = false;
-  // On exit from the loop, 'count' will hold the number of initialised items
-  // that the cleanup code needs to look at, in case of error.
-  int count;
-  for (count = 0; count < num_msg; count++) {
-    // Alias for readability.
-    pam_response* resp_item = &resp_tmp[count];
-    resp_item->resp_retcode = 0;
-    resp_item->resp = NULL;
-    switch (msg[count]->msg_style) {
-      case PAM_PROMPT_ECHO_ON:
-        resp_item->resp = strdup(user_auth->username_.c_str());
-        if (resp_item->resp == NULL)
-          raise_error = true;
-        break;
-      case PAM_PROMPT_ECHO_OFF:
-        resp_item->resp = strdup(user_auth->password_.c_str());
-        if (resp_item->resp == NULL)
-          raise_error = true;
-        break;
-      case PAM_TEXT_INFO:
-        // No response needed, as this instructs the PAM client to display
-        // text to the user.  Leave as NULL and continue with next prompt.
-        break;
-      default:
-        // Unexpected style code, so abort.
-        raise_error = true;
-    }
-    if (raise_error)
-      break;
-  }
-
-  if (raise_error) {
-    // Not passing the response back, so free up any memory used.
-    for (int n = 0; n < count; n++) {
-      if (resp_tmp[n].resp) {
-        free(resp_tmp[n].resp);
-      }
-    }
-    free(resp_tmp);
-    return PAM_CONV_ERR;
-  } else {
-    *resp = resp_tmp;
-    return PAM_SUCCESS;
-  }
-}
-
-}  // namespace remoting