dbus-auth-script.c

00001 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
00002 /* dbus-auth-script.c Test DBusAuth using a special script file (internal to D-Bus implementation)
00003  * 
00004  * Copyright (C) 2003 Red Hat, Inc.
00005  *
00006  * Licensed under the Academic Free License version 2.1
00007  * 
00008  * This program is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation; either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This program is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU General Public License for more details.
00017  * 
00018  * You should have received a copy of the GNU General Public License
00019  * along with this program; if not, write to the Free Software
00020  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00021  *
00022  */
00023 #include <config.h>
00024 
00025 #ifdef DBUS_BUILD_TESTS
00026 
00027 #include "dbus-auth-script.h"
00028 #include "dbus-auth.h"
00029 #include "dbus-string.h"
00030 #include "dbus-hash.h"
00031 #include "dbus-credentials.h"
00032 #include "dbus-internals.h"
00033 
00045 /* this is slightly different from the other append_quoted_string
00046  * in dbus-message-builder.c
00047  */
00048 static dbus_bool_t
00049 append_quoted_string (DBusString       *dest,
00050                       const DBusString *quoted)
00051 {
00052   dbus_bool_t in_quotes = FALSE;
00053   dbus_bool_t in_backslash = FALSE;
00054   int i;
00055 
00056   i = 0;
00057   while (i < _dbus_string_get_length (quoted))
00058     {
00059       unsigned char b;
00060 
00061       b = _dbus_string_get_byte (quoted, i);
00062 
00063       if (in_backslash)
00064         {
00065           unsigned char a;
00066           
00067           if (b == 'r')
00068             a = '\r';
00069           else if (b == 'n')
00070             a = '\n';
00071           else if (b == '\\')
00072             a = '\\';
00073           else
00074             {
00075               _dbus_warn ("bad backslashed byte %c\n", b);
00076               return FALSE;
00077             }
00078 
00079           if (!_dbus_string_append_byte (dest, a))
00080             return FALSE;
00081           
00082           in_backslash = FALSE;
00083         }
00084       else if (b == '\\')
00085         {
00086           in_backslash = TRUE;
00087         }
00088       else if (in_quotes)
00089         {
00090           if (b == '\'')
00091             in_quotes = FALSE;
00092           else
00093             {
00094               if (!_dbus_string_append_byte (dest, b))
00095                 return FALSE;
00096             }
00097         }
00098       else
00099         {
00100           if (b == '\'')
00101             in_quotes = TRUE;
00102           else if (b == ' ' || b == '\n' || b == '\t')
00103             break; /* end on whitespace if not quoted */
00104           else
00105             {
00106               if (!_dbus_string_append_byte (dest, b))
00107                 return FALSE;
00108             }
00109         }
00110       
00111       ++i;
00112     }
00113 
00114   return TRUE;
00115 }
00116 
00117 static dbus_bool_t
00118 same_first_word (const DBusString *a,
00119                  const DBusString *b)
00120 {
00121   int first_a_blank, first_b_blank;
00122 
00123   _dbus_string_find_blank (a, 0, &first_a_blank);
00124   _dbus_string_find_blank (b, 0, &first_b_blank);
00125 
00126   if (first_a_blank != first_b_blank)
00127     return FALSE;
00128 
00129   return _dbus_string_equal_len (a, b, first_a_blank);
00130 }
00131 
00132 static DBusAuthState
00133 auth_state_from_string (const DBusString *str)
00134 { 
00135   if (_dbus_string_starts_with_c_str (str, "WAITING_FOR_INPUT"))
00136     return DBUS_AUTH_STATE_WAITING_FOR_INPUT;
00137   else if (_dbus_string_starts_with_c_str (str, "WAITING_FOR_MEMORY"))
00138     return DBUS_AUTH_STATE_WAITING_FOR_MEMORY;
00139   else if (_dbus_string_starts_with_c_str (str, "HAVE_BYTES_TO_SEND"))
00140     return DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND;
00141   else if (_dbus_string_starts_with_c_str (str, "NEED_DISCONNECT"))
00142     return DBUS_AUTH_STATE_NEED_DISCONNECT;
00143   else if (_dbus_string_starts_with_c_str (str, "AUTHENTICATED"))
00144     return DBUS_AUTH_STATE_AUTHENTICATED;
00145   else
00146     return -1;
00147 }
00148 
00149 static const char*
00150 auth_state_to_string (DBusAuthState state)
00151 {
00152   switch (state)
00153     {
00154     case DBUS_AUTH_STATE_WAITING_FOR_INPUT:
00155       return "WAITING_FOR_INPUT";
00156     case DBUS_AUTH_STATE_WAITING_FOR_MEMORY:
00157       return "WAITING_FOR_MEMORY";
00158     case DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND:
00159       return "HAVE_BYTES_TO_SEND";
00160     case DBUS_AUTH_STATE_NEED_DISCONNECT:
00161       return "NEED_DISCONNECT";
00162     case DBUS_AUTH_STATE_AUTHENTICATED:
00163       return "AUTHENTICATED";
00164     }
00165 
00166   return "unknown";
00167 }
00168 
00169 static char **
00170 split_string (DBusString *str)
00171 {
00172   int i, j, k, count, end;
00173   char **array;
00174 
00175   end = _dbus_string_get_length (str);
00176 
00177   i = 0;
00178   _dbus_string_skip_blank (str, i, &i);
00179   for (count = 0; i < end; count++)
00180     {
00181       _dbus_string_find_blank (str, i, &i);
00182       _dbus_string_skip_blank (str, i, &i);
00183     }
00184 
00185   array = dbus_new0 (char *, count + 1);
00186   if (array == NULL)
00187     return NULL;
00188 
00189   i = 0;
00190   _dbus_string_skip_blank (str, i, &i);
00191   for (k = 0; k < count; k++)
00192     {
00193       _dbus_string_find_blank (str, i, &j);
00194 
00195       array[k] = dbus_malloc (j - i + 1);
00196       if (array[k] == NULL)
00197         {
00198           dbus_free_string_array (array);
00199           return NULL;
00200         }
00201       memcpy (array[k],
00202               _dbus_string_get_const_data_len (str, i, j - i), j - i);
00203       array[k][j - i] = '\0';
00204 
00205       _dbus_string_skip_blank (str, j, &i);
00206     }
00207   array[k] = NULL;
00208 
00209   return array;
00210 }
00211 
00212 static void
00213 auth_set_unix_credentials(DBusAuth  *auth,
00214                           dbus_uid_t uid,
00215                           dbus_pid_t pid)
00216 {
00217   DBusCredentials *credentials;
00218 
00219   credentials = _dbus_credentials_new ();
00220   if (credentials == NULL)
00221     _dbus_assert_not_reached ("no memory");
00222 
00223   if (uid != DBUS_UID_UNSET)
00224     _dbus_credentials_add_unix_uid (credentials, uid);
00225   if (pid != DBUS_PID_UNSET)
00226     _dbus_credentials_add_unix_pid (credentials, pid);
00227 
00228   _dbus_auth_set_credentials (auth, credentials);
00229 
00230   _dbus_credentials_unref (credentials);
00231 }
00232 
00243 dbus_bool_t
00244 _dbus_auth_script_run (const DBusString *filename)
00245 {
00246   DBusString file;
00247   DBusError error = DBUS_ERROR_INIT;
00248   DBusString line;
00249   dbus_bool_t retval;
00250   int line_no;
00251   DBusAuth *auth;
00252   DBusString from_auth;
00253   DBusAuthState state;
00254   DBusString context;
00255   DBusString guid;
00256   
00257   retval = FALSE;
00258   auth = NULL;
00259 
00260   _dbus_string_init_const (&guid, "5fa01f4202cd837709a3274ca0df9d00");
00261   _dbus_string_init_const (&context, "org_freedesktop_test");
00262   
00263   if (!_dbus_string_init (&file))
00264     return FALSE;
00265 
00266   if (!_dbus_string_init (&line))
00267     {
00268       _dbus_string_free (&file);
00269       return FALSE;
00270     }
00271 
00272   if (!_dbus_string_init (&from_auth))
00273     {
00274       _dbus_string_free (&file);
00275       _dbus_string_free (&line);
00276       return FALSE;
00277     }
00278 
00279   if (!_dbus_file_get_contents (&file, filename, &error))    {
00280       _dbus_warn ("Getting contents of %s failed: %s\n",
00281                   _dbus_string_get_const_data (filename), error.message);
00282       dbus_error_free (&error);
00283       goto out;
00284     }
00285 
00286   state = DBUS_AUTH_STATE_NEED_DISCONNECT;
00287   line_no = 0;
00288 
00289  next_iteration:
00290   while (_dbus_string_pop_line (&file, &line))
00291     {      
00292       line_no += 1;
00293 
00294       /* _dbus_warn ("%s\n", _dbus_string_get_const_data (&line)); */
00295       
00296       _dbus_string_delete_leading_blanks (&line);
00297 
00298       if (auth != NULL)
00299         {
00300           while ((state = _dbus_auth_do_work (auth)) ==
00301                  DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND)
00302             {
00303               const DBusString *tmp;
00304               if (_dbus_auth_get_bytes_to_send (auth, &tmp))
00305                 {
00306                   int count = _dbus_string_get_length (tmp);
00307 
00308                   if (_dbus_string_copy (tmp, 0, &from_auth,
00309                                          _dbus_string_get_length (&from_auth)))
00310                     _dbus_auth_bytes_sent (auth, count);
00311                 }
00312             }
00313         }
00314       
00315       if (_dbus_string_get_length (&line) == 0)
00316         {
00317           /* empty line */
00318           goto next_iteration;
00319         }
00320       else if (_dbus_string_starts_with_c_str (&line,
00321                                                "#"))
00322         {
00323           /* Ignore this comment */
00324           goto next_iteration;
00325         }
00326 #ifdef DBUS_WIN
00327       else if (_dbus_string_starts_with_c_str (&line,
00328                                                "WIN_ONLY"))
00329         {
00330           /* Ignore this line */
00331           goto next_iteration;
00332         }
00333       else if (_dbus_string_starts_with_c_str (&line,
00334                                                "UNIX_ONLY"))
00335         {
00336           /* skip this file */
00337           _dbus_warn ("skipping unix only auth script\n");
00338           retval = TRUE;
00339           goto out;
00340         }
00341 #endif
00342 #ifdef DBUS_UNIX
00343       else if (_dbus_string_starts_with_c_str (&line,
00344                                                "UNIX_ONLY"))
00345         {
00346           /* Ignore this line */
00347           goto next_iteration;
00348         }
00349       else if (_dbus_string_starts_with_c_str (&line,
00350                                                "WIN_ONLY"))
00351         {
00352           /* skip this file */
00353           _dbus_warn ("skipping windows only auth script\n");
00354           retval = TRUE;
00355           goto out;
00356         }
00357 #endif
00358       else if (_dbus_string_starts_with_c_str (&line,
00359                                                "CLIENT"))
00360         {
00361           DBusCredentials *creds;
00362           
00363           if (auth != NULL)
00364             {
00365               _dbus_warn ("already created a DBusAuth (CLIENT or SERVER given twice)\n");
00366               goto out;
00367             }
00368 
00369           auth = _dbus_auth_client_new ();
00370           if (auth == NULL)
00371             {
00372               _dbus_warn ("no memory to create DBusAuth\n");
00373               goto out;
00374             }
00375 
00376           /* test ref/unref */
00377           _dbus_auth_ref (auth);
00378           _dbus_auth_unref (auth);
00379 
00380           creds = _dbus_credentials_new_from_current_process ();
00381           if (creds == NULL)
00382             {
00383               _dbus_warn ("no memory for credentials\n");
00384               _dbus_auth_unref (auth);
00385               auth = NULL;
00386               goto out;
00387             }
00388               
00389           if (!_dbus_auth_set_credentials (auth, creds))
00390             {
00391               _dbus_warn ("no memory for setting credentials\n");
00392               _dbus_auth_unref (auth);
00393               auth = NULL;
00394               _dbus_credentials_unref (creds);
00395               goto out;
00396             }
00397           
00398           _dbus_credentials_unref (creds);
00399         }
00400       else if (_dbus_string_starts_with_c_str (&line,
00401                                                "SERVER"))
00402         {
00403           DBusCredentials *creds;
00404           
00405           if (auth != NULL)
00406             {
00407               _dbus_warn ("already created a DBusAuth (CLIENT or SERVER given twice)\n");
00408               goto out;
00409             }
00410 
00411           auth = _dbus_auth_server_new (&guid);
00412           if (auth == NULL)
00413             {
00414               _dbus_warn ("no memory to create DBusAuth\n");
00415               goto out;
00416             }
00417 
00418           /* test ref/unref */
00419           _dbus_auth_ref (auth);
00420           _dbus_auth_unref (auth);
00421 
00422           creds = _dbus_credentials_new_from_current_process ();
00423           if (creds == NULL)
00424             {
00425               _dbus_warn ("no memory for credentials\n");
00426               _dbus_auth_unref (auth);
00427               auth = NULL;
00428               goto out;
00429             }
00430               
00431           if (!_dbus_auth_set_credentials (auth, creds))
00432             {
00433               _dbus_warn ("no memory for setting credentials\n");
00434               _dbus_auth_unref (auth);
00435               auth = NULL;
00436               _dbus_credentials_unref (creds);
00437               goto out;
00438             }
00439           
00440           _dbus_credentials_unref (creds);
00441 
00442           _dbus_auth_set_context (auth, &context);
00443         }
00444       else if (auth == NULL)
00445         {
00446           _dbus_warn ("must specify CLIENT or SERVER\n");
00447           goto out;
00448 
00449         }
00450       else if (_dbus_string_starts_with_c_str (&line,
00451                                                "NO_CREDENTIALS"))
00452         {
00453           auth_set_unix_credentials (auth, DBUS_UID_UNSET, DBUS_PID_UNSET);
00454         }
00455       else if (_dbus_string_starts_with_c_str (&line,
00456                                                "ROOT_CREDENTIALS"))
00457         {
00458           auth_set_unix_credentials (auth, 0, DBUS_PID_UNSET);
00459         }
00460       else if (_dbus_string_starts_with_c_str (&line,
00461                                                "SILLY_CREDENTIALS"))
00462         {
00463           auth_set_unix_credentials (auth, 4312, DBUS_PID_UNSET);
00464         }
00465       else if (_dbus_string_starts_with_c_str (&line,
00466                                                "ALLOWED_MECHS"))
00467         {
00468           char **mechs;
00469 
00470           _dbus_string_delete_first_word (&line);
00471           mechs = split_string (&line);
00472           _dbus_auth_set_mechanisms (auth, (const char **) mechs);
00473           dbus_free_string_array (mechs);
00474         }
00475       else if (_dbus_string_starts_with_c_str (&line,
00476                                                "SEND"))
00477         {
00478           DBusString to_send;
00479           
00480           _dbus_string_delete_first_word (&line);
00481 
00482           if (!_dbus_string_init (&to_send))
00483             {
00484               _dbus_warn ("no memory to allocate string\n");
00485               goto out;
00486             }
00487 
00488           if (!append_quoted_string (&to_send, &line))
00489             {
00490               _dbus_warn ("failed to append quoted string line %d\n",
00491                           line_no);
00492               _dbus_string_free (&to_send);
00493               goto out;
00494             }
00495 
00496           _dbus_verbose ("Sending '%s'\n", _dbus_string_get_const_data (&to_send));
00497           
00498           if (!_dbus_string_append (&to_send, "\r\n"))
00499             {
00500               _dbus_warn ("failed to append \r\n from line %d\n",
00501                           line_no);
00502               _dbus_string_free (&to_send);
00503               goto out;
00504             }
00505 
00506           /* Replace USERID_HEX with our username in hex */
00507           {
00508             int where;
00509             
00510             if (_dbus_string_find (&to_send, 0,
00511                                    "USERID_HEX", &where))
00512               {
00513                 DBusString username;
00514 
00515                 if (!_dbus_string_init (&username))
00516                   {
00517                     _dbus_warn ("no memory for userid\n");
00518                     _dbus_string_free (&to_send);
00519                     goto out;
00520                   }
00521 
00522                 if (!_dbus_append_user_from_current_process (&username))
00523                   {
00524                     _dbus_warn ("no memory for userid\n");
00525                     _dbus_string_free (&username);
00526                     _dbus_string_free (&to_send);
00527                     goto out;
00528                   }
00529 
00530                 _dbus_string_delete (&to_send, where, strlen ("USERID_HEX"));
00531                 
00532                 if (!_dbus_string_hex_encode (&username, 0,
00533                                               &to_send, where))
00534                   {
00535                     _dbus_warn ("no memory to subst USERID_HEX\n");
00536                     _dbus_string_free (&username);
00537                     _dbus_string_free (&to_send);
00538                     goto out;
00539                   }
00540 
00541                 _dbus_string_free (&username);
00542               }
00543             else if (_dbus_string_find (&to_send, 0,
00544                                         "USERNAME_HEX", &where))
00545               {
00546                 DBusString username;
00547                 
00548                 if (!_dbus_string_init (&username))
00549                   {
00550                     _dbus_warn ("no memory for username\n");
00551                     _dbus_string_free (&to_send);
00552                     goto out;
00553                   }
00554 
00555                 if (!_dbus_append_user_from_current_process (&username))
00556                   {
00557                     _dbus_warn ("no memory for username\n");
00558                     _dbus_string_free (&username);
00559                     _dbus_string_free (&to_send);
00560                     goto out;
00561                   }
00562 
00563                 _dbus_string_delete (&to_send, where, strlen ("USERNAME_HEX"));
00564                 
00565                 if (!_dbus_string_hex_encode (&username, 0,
00566                                               &to_send, where))
00567                   {
00568                     _dbus_warn ("no memory to subst USERNAME_HEX\n");
00569                     _dbus_string_free (&username);
00570                     _dbus_string_free (&to_send);
00571                     goto out;
00572                   }
00573 
00574                 _dbus_string_free (&username);
00575               }
00576           }
00577 
00578           {
00579             DBusString *buffer;
00580 
00581             _dbus_auth_get_buffer (auth, &buffer);
00582             if (!_dbus_string_copy (&to_send, 0,
00583                                     buffer, _dbus_string_get_length (buffer)))
00584               {
00585                 _dbus_warn ("not enough memory to call bytes_received, or can't add bytes to auth object already in end state\n");
00586                 _dbus_string_free (&to_send);
00587                 _dbus_auth_return_buffer (auth, buffer, 0);
00588                 goto out;
00589               }
00590 
00591             _dbus_auth_return_buffer (auth, buffer, _dbus_string_get_length (&to_send));
00592           }
00593           
00594           _dbus_string_free (&to_send);
00595         }
00596       else if (_dbus_string_starts_with_c_str (&line,
00597                                                "EXPECT_STATE"))
00598         {
00599           DBusAuthState expected;
00600           
00601           _dbus_string_delete_first_word (&line);
00602 
00603           expected = auth_state_from_string (&line);
00604           if (expected < 0)
00605             {
00606               _dbus_warn ("bad auth state given to EXPECT_STATE\n");
00607               goto parse_failed;
00608             }
00609 
00610           if (expected != state)
00611             {
00612               _dbus_warn ("expected auth state %s but got %s on line %d\n",
00613                           auth_state_to_string (expected),
00614                           auth_state_to_string (state),
00615                           line_no);
00616               goto out;
00617             }
00618         }
00619       else if (_dbus_string_starts_with_c_str (&line,
00620                                                "EXPECT_COMMAND"))
00621         {
00622           DBusString received;
00623           
00624           _dbus_string_delete_first_word (&line);
00625 
00626           if (!_dbus_string_init (&received))
00627             {
00628               _dbus_warn ("no mem to allocate string received\n");
00629               goto out;
00630             }
00631 
00632           if (!_dbus_string_pop_line (&from_auth, &received))
00633             {
00634               _dbus_warn ("no line popped from the DBusAuth being tested, expected command %s on line %d\n",
00635                           _dbus_string_get_const_data (&line), line_no);
00636               _dbus_string_free (&received);
00637               goto out;
00638             }
00639 
00640           if (!same_first_word (&received, &line))
00641             {
00642               _dbus_warn ("line %d expected command '%s' and got '%s'\n",
00643                           line_no,
00644                           _dbus_string_get_const_data (&line),
00645                           _dbus_string_get_const_data (&received));
00646               _dbus_string_free (&received);
00647               goto out;
00648             }
00649           
00650           _dbus_string_free (&received);
00651         }
00652       else if (_dbus_string_starts_with_c_str (&line,
00653                                                "EXPECT_UNUSED"))
00654         {
00655           DBusString expected;
00656           const DBusString *unused;
00657           
00658           _dbus_string_delete_first_word (&line);
00659 
00660           if (!_dbus_string_init (&expected))
00661             {
00662               _dbus_warn ("no mem to allocate string expected\n");
00663               goto out;
00664             }
00665 
00666           if (!append_quoted_string (&expected, &line))
00667             {
00668               _dbus_warn ("failed to append quoted string line %d\n",
00669                           line_no);
00670               _dbus_string_free (&expected);
00671               goto out;
00672             }
00673 
00674           _dbus_auth_get_unused_bytes (auth, &unused);
00675           
00676           if (_dbus_string_equal (&expected, unused))
00677             {
00678               _dbus_auth_delete_unused_bytes (auth);
00679               _dbus_string_free (&expected);
00680             }
00681           else
00682             {
00683               _dbus_warn ("Expected unused bytes '%s' and have '%s'\n",
00684                           _dbus_string_get_const_data (&expected),
00685                           _dbus_string_get_const_data (unused));
00686               _dbus_string_free (&expected);
00687               goto out;
00688             }
00689         }
00690       else if (_dbus_string_starts_with_c_str (&line,
00691                                                "EXPECT_HAVE_NO_CREDENTIALS"))
00692         {
00693           DBusCredentials *authorized_identity;
00694           
00695           authorized_identity = _dbus_auth_get_identity (auth);
00696           if (!_dbus_credentials_are_anonymous (authorized_identity))
00697             {
00698               _dbus_warn ("Expected anonymous login or failed login, but some credentials were authorized\n");
00699               goto out;
00700             }
00701         }
00702       else if (_dbus_string_starts_with_c_str (&line,
00703                                                "EXPECT_HAVE_SOME_CREDENTIALS"))
00704         {
00705           DBusCredentials *authorized_identity;
00706           
00707           authorized_identity = _dbus_auth_get_identity (auth);
00708           if (_dbus_credentials_are_anonymous (authorized_identity))
00709             {
00710               _dbus_warn ("Expected to have some credentials, but we don't\n");
00711               goto out;
00712             }
00713         }
00714       else if (_dbus_string_starts_with_c_str (&line,
00715                                                "EXPECT"))
00716         {
00717           DBusString expected;
00718           
00719           _dbus_string_delete_first_word (&line);
00720 
00721           if (!_dbus_string_init (&expected))
00722             {
00723               _dbus_warn ("no mem to allocate string expected\n");
00724               goto out;
00725             }
00726 
00727           if (!append_quoted_string (&expected, &line))
00728             {
00729               _dbus_warn ("failed to append quoted string line %d\n",
00730                           line_no);
00731               _dbus_string_free (&expected);
00732               goto out;
00733             }
00734 
00735           if (_dbus_string_equal_len (&expected, &from_auth,
00736                                       _dbus_string_get_length (&expected)))
00737             {
00738               _dbus_string_delete (&from_auth, 0,
00739                                    _dbus_string_get_length (&expected));
00740               _dbus_string_free (&expected);
00741             }
00742           else
00743             {
00744               _dbus_warn ("Expected exact string '%s' and have '%s'\n",
00745                           _dbus_string_get_const_data (&expected),
00746                           _dbus_string_get_const_data (&from_auth));
00747               _dbus_string_free (&expected);
00748               goto out;
00749             }
00750         }
00751       else
00752         goto parse_failed;
00753 
00754       goto next_iteration; /* skip parse_failed */
00755       
00756     parse_failed:
00757       {
00758         _dbus_warn ("couldn't process line %d \"%s\"\n",
00759                     line_no, _dbus_string_get_const_data (&line));
00760         goto out;
00761       }
00762     }
00763 
00764   if (auth == NULL)
00765     {
00766       _dbus_warn ("Auth script is bogus, did not even have CLIENT or SERVER\n");
00767       goto out;
00768     }
00769   else if (state == DBUS_AUTH_STATE_AUTHENTICATED)
00770     {
00771       const DBusString *unused;
00772 
00773       _dbus_auth_get_unused_bytes (auth, &unused);
00774 
00775       if (_dbus_string_get_length (unused) > 0)
00776         {
00777           _dbus_warn ("did not expect unused bytes (scripts must specify explicitly if they are expected)\n");
00778           goto out;
00779         }
00780     }
00781 
00782   if (_dbus_string_get_length (&from_auth) > 0)
00783     {
00784       _dbus_warn ("script did not have EXPECT_ statements for all the data received from the DBusAuth\n");
00785       _dbus_warn ("Leftover data: %s\n", _dbus_string_get_const_data (&from_auth));
00786       goto out;
00787     }
00788   
00789   retval = TRUE;
00790   
00791  out:
00792   if (auth)
00793     _dbus_auth_unref (auth);
00794 
00795   _dbus_string_free (&file);
00796   _dbus_string_free (&line);
00797   _dbus_string_free (&from_auth);
00798   
00799   return retval;
00800 }
00801 
00803 #endif /* DBUS_BUILD_TESTS */

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