nxcomp: Switch to autoreconf.

1 files changed, 0 insertions, 667 deletions

diff --git a/nxcomp/Auth.cpp b/nxcomp/Auth.cpp
deleted file mode 100644
index bc047aa30..000000000
--- a/nxcomp/Auth.cpp
+++ /dev/null
@@ -1,667 +0,0 @@
-/**************************************************************************/
-/*                                                                        */
-/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)          */
-/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>  */
-/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>                 */
-/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>                */
-/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
-/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)           */
-/*                                                                        */
-/* NXCOMP, NX protocol compression and NX extensions to this software     */
-/* are copyright of the aforementioned persons and companies.             */
-/*                                                                        */
-/* Redistribution and use of the present software is allowed according    */
-/* to terms specified in the file LICENSE.nxcomp which comes in the       */
-/* source distribution.                                                   */
-/*                                                                        */
-/* All rights reserved.                                                   */
-/*                                                                        */
-/* NOTE: This software has received contributions from various other      */
-/* contributors, only the core maintainers and supporters are listed as   */
-/* copyright holders. Please contact us, if you feel you should be listed */
-/* as copyright holder, as well.                                          */
-/*                                                                        */
-/**************************************************************************/
-
-#include "Auth.h"
-
-#include "Misc.h"
-#include "Control.h"
-#include "Timestamp.h"
-#include "Pipe.h"
-
-#define DEFAULT_STRING_LIMIT  512
-
-//
-// Set the verbosity level.
-//
-
-#define PANIC
-#define WARNING
-#undef  TEST
-#undef  DEBUG
-
-//
-// Store the provided cookie as our 'fake' cookie, then
-// read the 'real' cookie from the current X authority
-// file. 
-//
-
-Auth::Auth(char *display, char *cookie)
-{
-  display_ = NULL;
-
-  file_ = NULL;
-
-  last_ = nullTimestamp();
-
-  fakeCookie_ = NULL;
-  realCookie_ = NULL;
-
-  fakeData_ = NULL;
-  realData_ = NULL;
-
-  dataSize_ = 0;
-
-  generatedCookie_ = 0;
-
-  if (display == NULL || *display == '\0' || cookie == NULL ||
-          *cookie == '\0' || strlen(cookie) != 32)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Can't create the X authorization data "
-            << "with cookie '" << cookie << "' and display '"
-            << display << "'.\n" << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Can't create the X authorization data "
-         << "with cookie '" << cookie << "' and display '"
-         << display << "'.\n";
-
-    return;
-  }
-
-  #ifdef TEST
-  *logofs << "Auth: Creating X authorization data with cookie '"
-          << cookie << "' and display '" << display << "'.\n"
-          << logofs_flush;
-  #endif
-
-  //
-  // Get a local copy of all parameters.
-  //
-
-  display_ = new char[strlen(display) + 1];
-  file_    = new char[DEFAULT_STRING_LIMIT];
-
-  fakeCookie_ = new char[strlen(cookie) + 1];
-  realCookie_ = new char[DEFAULT_STRING_LIMIT];
-
-  if (display_ == NULL || file_ == NULL ||
-          fakeCookie_ == NULL || realCookie_ == NULL)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Cannot allocate memory for the X "
-            << "authorization data.\n" << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Cannot allocate memory for the X "
-         << "authorization data.\n";
-
-    return;
-  }
-
-  strcpy(display_, display);
-
-  *file_ = '\0';
-
-  strcpy(fakeCookie_, cookie);
-
-  *realCookie_ = '\0';
-
-  //
-  // Get the real cookie from the authorization file.
-  //
-
-  updateCookie();
-}
-
-Auth::~Auth()
-{
-  delete [] display_;
-  delete [] file_;
-
-  delete [] fakeCookie_;
-  delete [] realCookie_;
-
-  delete [] fakeData_;
-  delete [] realData_;
-}
-
-//
-// At the present moment the cookie is read only once,
-// at the time the instance is initialized. If the auth
-// file changes along the life of the session, the old
-// cookie will be used. This works with X servers beca-
-// use of an undocumented "feature". See nx-X11.
-//
-
-int Auth::updateCookie()
-{
-  if (isTimestamp(last_) == 0)
-  {
-    #ifdef TEST
-    *logofs << "Auth: Reading the X authorization file "
-            << "with last update at " << strMsTimestamp(last_)
-            << ".\n" << logofs_flush;
-    #endif
-
-    if (getCookie() == 1 && validateCookie() == 1)
-    {
-      //
-      // It should rather be the modification time
-      // the auth file, so we can read it again if
-      // the file is changed.
-      //
-
-      #ifdef TEST
-      *logofs << "Auth: Setting last X authorization file "
-              << "update at " << strMsTimestamp() << ".\n"
-              << logofs_flush;
-      #endif
-
-      last_ = getTimestamp();
-
-      return 1;
-    }
-
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Cannot read the cookie from the X "
-            << "authorization file.\n" << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Cannot read the cookie from the X "
-         << "authorization file.\n";
-
-    return -1;
-  }
-
-  #ifdef TEST
-  *logofs << "Auth: WARNING! Skipping check on the X "
-          << "authorization file.\n" << logofs_flush;
-  #endif
-
-  return 0;
-}
-
-int Auth::getCookie()
-{
-  //
-  // Check the name of the auth file that we are going to use.
-  // It can be either the value of the XAUTHORITY environment
-  // or the default .Xauthority file in the user's home.
-  //
-
-  char *environment;
-
-  environment = getenv("XAUTHORITY");
-
-  if (environment != NULL && *environment != '\0')
-  {
-    strncpy(file_, environment, DEFAULT_STRING_LIMIT - 1);
-  }
-  else
-  {
-    snprintf(file_, DEFAULT_STRING_LIMIT - 1, "%s/.Xauthority",
-                 control -> HomePath);
-  }
-
-  *(file_ + DEFAULT_STRING_LIMIT - 1) = '\0';
-
-  #ifdef TEST
-  *logofs << "Auth: Using X authorization file '" << file_
-          << "'.\n" << logofs_flush;
-  #endif
-
-  //
-  // Use the nxauth command on Windows and the Mac, xauth
-  // on all the other platforms. On Windows we assume that
-  // the nxauth command is located under bin in the client
-  // installation directory. On Mac OS X we assume that the
-  // command is located directly in the client installation
-  // directory, to make bundle shipping easier. On all the
-  // other platforms we use the default xauth command that
-  // is in our path.
-  //
-
-  char command[DEFAULT_STRING_LIMIT];
-
-  #if defined(__CYGWIN32__)
-
-  snprintf(command, DEFAULT_STRING_LIMIT - 1,
-               "%s/bin/nxauth", control -> SystemPath);
-
-  *(command + DEFAULT_STRING_LIMIT - 1) = '\0';
-
-  #elif defined(__APPLE__)
-
-  snprintf(command, DEFAULT_STRING_LIMIT - 1,
-               "%s/nxauth", control -> SystemPath);
-
-  *(command + DEFAULT_STRING_LIMIT - 1) = '\0';
-
-  #else
-
-  strcpy(command, "xauth");
-
-  #endif
-
-  #ifdef TEST
-  *logofs << "Auth: Using X auth command '" << command
-          << "'.\n" << logofs_flush;
-  #endif
-
-  //
-  // The SSH code forces using the unix:n port when passing localhost:n.
-  // This is probably because localhost:n can fail to return a valid
-  // entry on machines where the hostname for localhost doesn't match
-  // exactly the 'localhost' string. For example, on a freshly installed
-  // Fedora Core 3 I get a 'localhost.localdomain/unix:0' entry. Query-
-  // ing 'xauth list localhost:0' results in an empty result, while the
-  // query 'xauth list unix:0' works as expected. Note anyway that if
-  // the cookie for the TCP connection on 'localhost' is set to a dif-
-  // ferent cookie than the one for the Unix connections, both SSH and
-  // NX will match the wrong cookie and session will fail.
-  //
-  
-  char line[DEFAULT_STRING_LIMIT];
-
-  if (strncmp(display_, "localhost:", 10) == 0)
-  {
-    snprintf(line, DEFAULT_STRING_LIMIT, "unix:%s", display_ + 10);
-  }
-  else
-  {
-    snprintf(line, DEFAULT_STRING_LIMIT, "%.200s", display_);
-  }
-
-  const char *parameters[256];
-
-  parameters[0] = command;
-  parameters[1] = command;
-  parameters[2] = "-f";
-  parameters[3] = file_;
-  parameters[4] = "list";
-  parameters[5] = line;
-  parameters[6] = NULL;
-
-  #ifdef TEST
-  *logofs << "Auth: Executing command ";
-
-  for (int i = 0; i < 256 && parameters[i] != NULL; i++)
-  {
-    *logofs << "[" << parameters[i] << "]";
-  }
-
-  *logofs << ".\n" << logofs_flush;
-  #endif
-
-  //
-  // Use the popen() function to read the result
-  // of the command. We would better use our own
-  // implementation.
-  //
-
-  FILE *data = Popen((char *const *) parameters, "r");
-
-  int result = -1;
-
-  if (data == NULL)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Failed to execute the X auth command.\n"
-            << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Failed to execute the X auth command.\n";
-
-    goto AuthGetCookieResult;
-  }
-
-  if (fgets(line, DEFAULT_STRING_LIMIT, data) == NULL)
-  {
-    #ifdef WARNING
-    *logofs << "Auth: WARNING! Failed to read data from the X "
-            << "auth command.\n" << logofs_flush;
-    #endif
-
-    #ifdef TEST
-    cerr << "Warning" << ": Failed to read data from the X "
-         << "auth command.\n";
-    #endif
-
-    #ifdef PANIC
-    *logofs << "Auth: WARNING! Generating a fake cookie for "
-            << "X authentication.\n" << logofs_flush;
-    #endif
-
-    #ifdef TEST
-    cerr << "Warning" << ": Generating a fake cookie for "
-         << "X authentication.\n";
-    #endif
-
-    generateCookie(realCookie_);
-  }
-  else
-  {
-    #ifdef TEST
-    *logofs << "Auth: Checking cookie in string '" << line
-            << "'.\n" << logofs_flush;
-    #endif
-
-    // 
-    // Skip the hostname in the authority entry
-    // just in case it includes some white spaces.
-    //
-
-    char *cookie = NULL;
-
-    cookie = index(line, ':');
-
-    if (cookie == NULL)
-    {
-      cookie = line;
-    }
-
-    if (sscanf(cookie, "%*s %*s %511s", realCookie_) != 1)
-    {
-      #ifdef PANIC
-      *logofs << "Auth: PANIC! Failed to identify the cookie "
-              << "in string '" << line << "'.\n"
-              << logofs_flush;
-      #endif
-
-      cerr << "Error" << ": Failed to identify the cookie "
-           << "in string '" << line << "'.\n";
-
-      goto AuthGetCookieResult;
-    }
-
-    #ifdef TEST
-    *logofs << "Auth: Got cookie '" << realCookie_
-            << "' from file '" << file_ << "'.\n"
-            << logofs_flush;
-    #endif
-  }
-
-  result = 1;
-
-AuthGetCookieResult:
-
-  if (data != NULL)
-  {
-    Pclose(data);
-  }
-
-  return result;
-}
-
-int Auth::validateCookie()
-{
-  unsigned int length = strlen(realCookie_);
-
-  if (length > DEFAULT_STRING_LIMIT / 2 - 1 ||
-          strlen(fakeCookie_) != length)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Size mismatch between cookies '"
-            << realCookie_ << "' and '" << fakeCookie_ << "'.\n"
-            << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Size mismatch between cookies '"
-         << realCookie_ << "' and '" << fakeCookie_ << "'.\n";
-
-    goto AuthValidateCookieError;
-  }
-
-  //
-  // The length of the resulting data will be
-  // half the size of the Hex cookie.
-  //
-
-  length = length / 2;
-
-  fakeData_ = new char[length];
-  realData_ = new char[length];
-
-  if (fakeData_ == NULL || realData_ == NULL)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Cannot allocate memory for the binary X "
-            << "authorization data.\n" << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Cannot allocate memory for the binary X "
-         << "authorization data.\n";
-
-    goto AuthValidateCookieError;
-  }
-
-  //
-  // Translate the real cookie from Hex data
-  // to its binary representation.
-  //
-
-  unsigned int value;
-
-  for (unsigned int i = 0; i < length; i++)
-  {
-    if (sscanf(realCookie_ + 2 * i, "%2x", &value) != 1)
-    {
-      #ifdef PANIC
-      *logofs << "Auth: PANIC! Bad X authorization data in real "
-              << "cookie '" << realCookie_ << "'.\n" << logofs_flush;
-      #endif
-
-      cerr << "Error" << ": Bad X authorization data in real cookie '"
-           << realCookie_ << "'.\n";
-
-      goto AuthValidateCookieError;
-    }
-
-    realData_[i] = value;
-
-    if (sscanf(fakeCookie_ + 2 * i, "%2x", &value) != 1)
-    {
-      #ifdef PANIC
-      *logofs << "Auth: PANIC! Bad X authorization data in fake "
-              << "cookie '" << fakeCookie_ << "'.\n" << logofs_flush;
-      #endif
-
-      cerr << "Error" << ": Bad X authorization data in fake cookie '"
-           << fakeCookie_ << "'.\n";
-
-      goto AuthValidateCookieError;
-    }
-
-    fakeData_[i] = value;
-  }
-
-  dataSize_ = length;
-
-  #ifdef TEST
-  *logofs << "Auth: Validated real cookie '"
-          << realCookie_ << "' and fake cookie '" << fakeCookie_
-          << "' with data with size " << dataSize_ << ".\n"
-          << logofs_flush;
-
-  *logofs << "Auth: Ready to accept incoming connections.\n"
-          << logofs_flush;
-  #endif
-
-  return 1;
-
-AuthValidateCookieError:
-
-  delete [] fakeData_;
-  delete [] realData_;
-
-  fakeData_ = NULL;
-  realData_ = NULL;
-
-  dataSize_ = 0;
-
-  return -1;
-}
-
-int Auth::checkCookie(unsigned char *buffer)
-{
-  if (isValid() != 1)
-  {
-    #ifdef PANIC
-    *logofs << "Auth: PANIC! Attempt to check the X cookie with "
-            << "invalid authorization data.\n" << logofs_flush;
-    #endif
-
-    cerr << "Error" << ": Attempt to check the X cookie with "
-         << "invalid authorization data.\n";
-
-    return -1;
-  }
-
-  const char *protoName = "MIT-MAGIC-COOKIE-1";
-  int protoSize = strlen(protoName);
-
-  int matchedProtoSize;
-  int matchedDataSize;
-
-  if (buffer[0] == 0x42)
-  {
-    //
-    // Byte order is MSB first.
-    //
-
-    matchedProtoSize = 256 * buffer[6] + buffer[7];
-    matchedDataSize  = 256 * buffer[8] + buffer[9];
-  }
-  else if (buffer[0] == 0x6c)
-  {
-    //
-    // Byte order is LSB first.
-    //
-
-    matchedProtoSize = buffer[6] + 256 * buffer[7];
-    matchedDataSize  = buffer[8] + 256 * buffer[9];
-  }
-  else
-  {
-    #ifdef WARNING
-    *logofs << "Auth: WARNING! Bad X connection data in the buffer.\n"
-            << logofs_flush;
-    #endif
-
-    cerr << "Warning" << ": Bad X connection data in the buffer.\n";
-
-    return -1;
-  }
-
-  //
-  // Check if both the authentication protocol
-  // and the fake cookie match our data.
-  //
-
-  int protoOffset = 12;
-
-  #ifdef TEST
-  *logofs << "Auth: Received a protocol size of "
-          << matchedProtoSize << " bytes.\n"
-          << logofs_flush;
-  #endif
-
-  if (matchedProtoSize != protoSize ||
-          memcmp(buffer + protoOffset, protoName, protoSize) != 0)
-  {
-    #ifdef WARNING
-    *logofs << "Auth: WARNING! Protocol mismatch or no X "
-            << "authentication data.\n" << logofs_flush;
-    #endif
-
-    cerr << "Warning" << ": Protocol mismatch or no X "
-         << "authentication data.\n";
-
-    return -1;
-  }
-
-  int dataOffset = protoOffset + ((matchedProtoSize + 3) & ~3);
-
-  #ifdef TEST
-  *logofs << "Auth: Received a data size of "
-          << matchedDataSize << " bytes.\n"
-          << logofs_flush;
-  #endif
-
-  if (matchedDataSize != dataSize_ ||
-           memcmp(buffer + dataOffset, fakeData_, dataSize_) != 0)
-  {
-    #ifdef WARNING
-    *logofs << "Auth: WARNING! Cookie mismatch in the X "
-            << "authentication data.\n" << logofs_flush;
-    #endif
-
-    cerr << "Warning" << ": Cookie mismatch in the X "
-         << "authentication data.\n";
-
-    return -1;
-  }
-
-  //
-  // Everything is OK. Replace the fake data.
-  //
-
-  #ifdef TEST
-  *logofs << "Auth: Replacing fake X authentication data "
-          << "with the real data.\n" << logofs_flush;
-  #endif
-
-  memcpy(buffer + dataOffset, realData_, dataSize_);
-
-  return 1;
-}
-
-void Auth::generateCookie(char *cookie)
-{
-  //
-  // Code is from the SSH implementation, except that
-  // we use a much weaker random number generator.
-  // This is not critical, anyway, as this is just a
-  // fake cookie. The X server doesn't have a cookie
-  // for the display, so it will ignore the value we
-  // feed to it.
-  //
-
-  T_timestamp timer = getTimestamp();
-
-  srand((unsigned int) timer.tv_usec);
-
-  unsigned int data = rand();
-
-  for (int i = 0; i < 16; i++)
-  {
-    if (i % 4 == 0)
-    {
-      data = rand();
-    }
-
-    snprintf(cookie + 2 * i, 3, "%02x", data & 0xff);
-
-    data >>= 8;
-  }
-
-  generatedCookie_ = 1;
-
-  #ifdef TEST
-  *logofs << "Auth: Generated X cookie string '"
-          << cookie << "'.\n" << logofs_flush;
-  #endif
-}