<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>dbus-userdb.c Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.2.15 -->
<center>
<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="modules.html">Modules</a> <a class="qindex" href="annotated.html">Data Structures</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Data Fields</a> <a class="qindex" href="pages.html">Related Pages</a> </center>
<hr><h1>dbus-userdb.c</h1><div class="fragment"><pre>00001 <font class="comment">/* -*- mode: C; c-file-style: "gnu" -*- */</font>
00002 <font class="comment">/* dbus-userdb.c User database abstraction</font>
00003 <font class="comment"> * </font>
00004 <font class="comment"> * Copyright (C) 2003 Red Hat, Inc.</font>
00005 <font class="comment"> *</font>
00006 <font class="comment"> * Licensed under the Academic Free License version 2.0</font>
00007 <font class="comment"> * </font>
00008 <font class="comment"> * This program is free software; you can redistribute it and/or modify</font>
00009 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00010 <font class="comment"> * the Free Software Foundation; either version 2 of the License, or</font>
00011 <font class="comment"> * (at your option) any later version.</font>
00012 <font class="comment"> *</font>
00013 <font class="comment"> * This program is distributed in the hope that it will be useful,</font>
00014 <font class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00015 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00016 <font class="comment"> * GNU General Public License for more details.</font>
00017 <font class="comment"> * </font>
00018 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00019 <font class="comment"> * along with this program; if not, write to the Free Software</font>
00020 <font class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00021 <font class="comment"> *</font>
00022 <font class="comment"> */</font>
00023 <font class="preprocessor">#include "dbus-userdb.h"</font>
00024 <font class="preprocessor">#include "dbus-hash.h"</font>
00025 <font class="preprocessor">#include "dbus-test.h"</font>
00026 <font class="preprocessor">#include "dbus-internals.h"</font>
00027 <font class="preprocessor">#include <string.h></font>
00028
<a name="l00032"></a><a class="code" href="structDBusUserDatabase.html">00032</a> <font class="keyword">struct </font><a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a>
00033 {
<a name="l00034"></a><a class="code" href="structDBusUserDatabase.html#m0">00034</a> <font class="keywordtype">int</font> <a class="code" href="structDBusUserDatabase.html#m0">refcount</a>;
<a name="l00036"></a><a class="code" href="structDBusUserDatabase.html#m1">00036</a> <a class="code" href="structDBusHashTable.html">DBusHashTable</a> *<a class="code" href="structDBusUserDatabase.html#m1">users</a>;
<a name="l00037"></a><a class="code" href="structDBusUserDatabase.html#m2">00037</a> <a class="code" href="structDBusHashTable.html">DBusHashTable</a> *<a class="code" href="structDBusUserDatabase.html#m2">groups</a>;
<a name="l00038"></a><a class="code" href="structDBusUserDatabase.html#m3">00038</a> <a class="code" href="structDBusHashTable.html">DBusHashTable</a> *<a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a>;
<a name="l00039"></a><a class="code" href="structDBusUserDatabase.html#m4">00039</a> <a class="code" href="structDBusHashTable.html">DBusHashTable</a> *<a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a>;
00040 };
00041
00042 <font class="keyword">static</font> <font class="keywordtype">void</font>
00043 free_user_info (<font class="keywordtype">void</font> *data)
00044 {
00045 <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info = data;
00046
00047 <font class="keywordflow">if</font> (info == NULL) <font class="comment">/* hash table will pass NULL */</font>
00048 <font class="keywordflow">return</font>;
00049
00050 _dbus_user_info_free (info);
00051 dbus_free (info);
00052 }
00053
00054 <font class="keyword">static</font> <font class="keywordtype">void</font>
00055 free_group_info (<font class="keywordtype">void</font> *data)
00056 {
00057 <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info = data;
00058
00059 <font class="keywordflow">if</font> (info == NULL) <font class="comment">/* hash table will pass NULL */</font>
00060 <font class="keywordflow">return</font>;
00061
00062 _dbus_group_info_free (info);
00063 dbus_free (info);
00064 }
00065
00066 <font class="keyword">static</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a>*
00067 _dbus_user_database_lookup (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00068 dbus_uid_t uid,
00069 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
00070 <a class="code" href="structDBusError.html">DBusError</a> *error)
00071 {
00072 <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00073
00074 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00075 _dbus_assert (uid != DBUS_UID_UNSET || username != NULL);
00076
00077 <font class="keywordflow">if</font> (uid != DBUS_UID_UNSET)
00078 info = _dbus_hash_table_lookup_ulong (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a>, uid);
00079 <font class="keywordflow">else</font>
00080 info = _dbus_hash_table_lookup_string (db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a>, _dbus_string_get_const_data (username));
00081
00082 <font class="keywordflow">if</font> (info)
00083 {
00084 _dbus_verbose (<font class="stringliteral">"Using cache for UID "</font>DBUS_UID_FORMAT<font class="stringliteral">" information\n"</font>,
00085 uid);
00086 <font class="keywordflow">return</font> info;
00087 }
00088 <font class="keywordflow">else</font>
00089 {
00090 _dbus_verbose (<font class="stringliteral">"No cache for UID "</font>DBUS_UID_FORMAT<font class="stringliteral">"\n"</font>,
00091 uid);
00092
00093 info = dbus_new0 (<a class="code" href="structDBusUserInfo.html">DBusUserInfo</a>, 1);
00094 <font class="keywordflow">if</font> (info == NULL)
00095 {
00096 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00097 <font class="keywordflow">return</font> NULL;
00098 }
00099
00100 <font class="keywordflow">if</font> (uid != DBUS_UID_UNSET)
00101 {
00102 <font class="keywordflow">if</font> (!_dbus_user_info_fill_uid (info, uid, error))
00103 {
00104 _DBUS_ASSERT_ERROR_IS_SET (error);
00105 free_user_info (info);
00106 <font class="keywordflow">return</font> NULL;
00107 }
00108 }
00109 <font class="keywordflow">else</font>
00110 {
00111 <font class="keywordflow">if</font> (!_dbus_user_info_fill (info, username, error))
00112 {
00113 _DBUS_ASSERT_ERROR_IS_SET (error);
00114 free_user_info (info);
00115 <font class="keywordflow">return</font> NULL;
00116 }
00117 }
00118
00119 <font class="comment">/* be sure we don't use these after here */</font>
00120 uid = DBUS_UID_UNSET;
00121 username = NULL;
00122
00123 <font class="comment">/* insert into hash */</font>
00124 <font class="keywordflow">if</font> (!_dbus_hash_table_insert_ulong (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a>, info-><a class="code" href="structDBusUserInfo.html#m0">uid</a>, info))
00125 {
00126 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00127 free_user_info (info);
00128 <font class="keywordflow">return</font> NULL;
00129 }
00130
00131 <font class="keywordflow">if</font> (!_dbus_hash_table_insert_string (db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a>,
00132 info-><a class="code" href="structDBusUserInfo.html#m4">username</a>,
00133 info))
00134 {
00135 _dbus_hash_table_remove_ulong (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a>, info-><a class="code" href="structDBusUserInfo.html#m0">uid</a>);
00136 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00137 <font class="keywordflow">return</font> NULL;
00138 }
00139
00140 <font class="keywordflow">return</font> info;
00141 }
00142 }
00143
00144 <font class="keyword">static</font> <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a>*
00145 _dbus_user_database_lookup_group (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00146 dbus_gid_t gid,
00147 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *groupname,
00148 <a class="code" href="structDBusError.html">DBusError</a> *error)
00149 {
00150 <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info;
00151
00152 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00153
00154 <font class="keywordflow">if</font> (gid != DBUS_GID_UNSET)
00155 info = _dbus_hash_table_lookup_ulong (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a>, gid);
00156 <font class="keywordflow">else</font>
00157 info = _dbus_hash_table_lookup_string (db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a>,
00158 _dbus_string_get_const_data (groupname));
00159 <font class="keywordflow">if</font> (info)
00160 {
00161 _dbus_verbose (<font class="stringliteral">"Using cache for GID "</font>DBUS_GID_FORMAT<font class="stringliteral">" information\n"</font>,
00162 gid);
00163 <font class="keywordflow">return</font> info;
00164 }
00165 <font class="keywordflow">else</font>
00166 {
00167 _dbus_verbose (<font class="stringliteral">"No cache for GID "</font>DBUS_GID_FORMAT<font class="stringliteral">"\n"</font>,
00168 gid);
00169
00170 info = dbus_new0 (<a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a>, 1);
00171 <font class="keywordflow">if</font> (info == NULL)
00172 {
00173 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00174 <font class="keywordflow">return</font> NULL;
00175 }
00176
00177 <font class="keywordflow">if</font> (!_dbus_group_info_fill_gid (info, gid, error))
00178 {
00179 _DBUS_ASSERT_ERROR_IS_SET (error);
00180 free_group_info (info);
00181 <font class="keywordflow">return</font> NULL;
00182 }
00183
00184 <font class="keywordflow">if</font> (!_dbus_hash_table_insert_ulong (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a>, info-><a class="code" href="structDBusGroupInfo.html#m0">gid</a>, info))
00185 {
00186 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00187 free_group_info (info);
00188 <font class="keywordflow">return</font> NULL;
00189 }
00190
00191
00192 <font class="keywordflow">if</font> (!_dbus_hash_table_insert_string (db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a>,
00193 info-><a class="code" href="structDBusGroupInfo.html#m1">groupname</a>,
00194 info))
00195 {
00196 _dbus_hash_table_remove_ulong (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a>, info-><a class="code" href="structDBusGroupInfo.html#m0">gid</a>);
00197 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00198 <font class="keywordflow">return</font> NULL;
00199 }
00200
00201 <font class="keywordflow">return</font> info;
00202 }
00203 }
00204
00205 _DBUS_DEFINE_GLOBAL_LOCK(system_users);
00206 <font class="keyword">static</font> dbus_bool_t database_locked = FALSE;
00207 <font class="keyword">static</font> <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *system_db = NULL;
00208 <font class="keyword">static</font> <a class="code" href="structDBusString.html">DBusString</a> process_username;
00209 <font class="keyword">static</font> <a class="code" href="structDBusString.html">DBusString</a> process_homedir;
00210
00211 <font class="keyword">static</font> <font class="keywordtype">void</font>
00212 shutdown_system_db (<font class="keywordtype">void</font> *data)
00213 {
00214 _dbus_user_database_unref (system_db);
00215 system_db = NULL;
00216 _dbus_string_free (&process_username);
00217 _dbus_string_free (&process_homedir);
00218 }
00219
00220 <font class="keyword">static</font> dbus_bool_t
00221 init_system_db (<font class="keywordtype">void</font>)
00222 {
00223 _dbus_assert (database_locked);
00224
00225 <font class="keywordflow">if</font> (system_db == NULL)
00226 {
00227 <a class="code" href="structDBusError.html">DBusError</a> error;
00228 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00229
00230 system_db = _dbus_user_database_new ();
00231 <font class="keywordflow">if</font> (system_db == NULL)
00232 <font class="keywordflow">return</font> FALSE;
00233
00234 dbus_error_init (&error);
00235
00236 <font class="keywordflow">if</font> (!_dbus_user_database_get_uid (system_db,
00237 _dbus_getuid (),
00238 &info,
00239 &error))
00240 {
00241 _dbus_user_database_unref (system_db);
00242 system_db = NULL;
00243
00244 <font class="keywordflow">if</font> (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
00245 {
00246 dbus_error_free (&error);
00247 <font class="keywordflow">return</font> FALSE;
00248 }
00249 <font class="keywordflow">else</font>
00250 {
00251 <font class="comment">/* This really should not happen. */</font>
00252 _dbus_warn (<font class="stringliteral">"Could not get password database information for UID of current process: %s\n"</font>,
00253 error.<a class="code" href="structDBusError.html#m1">message</a>);
00254 dbus_error_free (&error);
00255 <font class="keywordflow">return</font> FALSE;
00256 }
00257 }
00258
00259 <font class="keywordflow">if</font> (!_dbus_string_init (&process_username))
00260 {
00261 _dbus_user_database_unref (system_db);
00262 system_db = NULL;
00263 <font class="keywordflow">return</font> FALSE;
00264 }
00265
00266 <font class="keywordflow">if</font> (!_dbus_string_init (&process_homedir))
00267 {
00268 _dbus_string_free (&process_username);
00269 _dbus_user_database_unref (system_db);
00270 system_db = NULL;
00271 <font class="keywordflow">return</font> FALSE;
00272 }
00273
00274 <font class="keywordflow">if</font> (!_dbus_string_append (&process_username,
00275 info-><a class="code" href="structDBusUserInfo.html#m4">username</a>) ||
00276 !_dbus_string_append (&process_homedir,
00277 info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a>) ||
00278 !_dbus_register_shutdown_func (shutdown_system_db, NULL))
00279 {
00280 _dbus_string_free (&process_username);
00281 _dbus_string_free (&process_homedir);
00282 _dbus_user_database_unref (system_db);
00283 system_db = NULL;
00284 <font class="keywordflow">return</font> FALSE;
00285 }
00286 }
00287
00288 <font class="keywordflow">return</font> TRUE;
00289 }
00290
00299 <font class="keywordtype">void</font>
<a name="l00300"></a><a class="code" href="group__DBusInternalsUtils.html#a112">00300</a> _dbus_user_database_lock_system (<font class="keywordtype">void</font>)
00301 {
00302 _DBUS_LOCK (system_users);
00303 database_locked = TRUE;
00304 }
00305
00309 <font class="keywordtype">void</font>
<a name="l00310"></a><a class="code" href="group__DBusInternalsUtils.html#a113">00310</a> _dbus_user_database_unlock_system (<font class="keywordtype">void</font>)
00311 {
00312 database_locked = FALSE;
00313 _DBUS_UNLOCK (system_users);
00314 }
00315
00322 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a>*
<a name="l00323"></a><a class="code" href="group__DBusInternalsUtils.html#a114">00323</a> _dbus_user_database_get_system (<font class="keywordtype">void</font>)
00324 {
00325 _dbus_assert (database_locked);
00326
00327 init_system_db ();
00328
00329 <font class="keywordflow">return</font> system_db;
00330 }
00331
00339 dbus_bool_t
<a name="l00340"></a><a class="code" href="group__DBusInternalsUtils.html#a115">00340</a> _dbus_username_from_current_process (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> **username)
00341 {
00342 _dbus_user_database_lock_system ();
00343 <font class="keywordflow">if</font> (!init_system_db ())
00344 {
00345 _dbus_user_database_unlock_system ();
00346 <font class="keywordflow">return</font> FALSE;
00347 }
00348 *username = &process_username;
00349 _dbus_user_database_unlock_system ();
00350
00351 <font class="keywordflow">return</font> TRUE;
00352 }
00353
00361 dbus_bool_t
<a name="l00362"></a><a class="code" href="group__DBusInternalsUtils.html#a116">00362</a> _dbus_homedir_from_current_process (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> **homedir)
00363 {
00364 _dbus_user_database_lock_system ();
00365 <font class="keywordflow">if</font> (!init_system_db ())
00366 {
00367 _dbus_user_database_unlock_system ();
00368 <font class="keywordflow">return</font> FALSE;
00369 }
00370 *homedir = &process_homedir;
00371 _dbus_user_database_unlock_system ();
00372
00373 <font class="keywordflow">return</font> TRUE;
00374 }
00375
00383 dbus_bool_t
<a name="l00384"></a><a class="code" href="group__DBusInternalsUtils.html#a117">00384</a> _dbus_get_user_id (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
00385 dbus_uid_t *uid)
00386 {
00387 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> creds;
00388
00389 <font class="keywordflow">if</font> (!_dbus_credentials_from_username (username, &creds))
00390 <font class="keywordflow">return</font> FALSE;
00391
00392 <font class="keywordflow">if</font> (creds.<a class="code" href="structDBusCredentials.html#m1">uid</a> == DBUS_UID_UNSET)
00393 <font class="keywordflow">return</font> FALSE;
00394
00395 *uid = creds.<a class="code" href="structDBusCredentials.html#m1">uid</a>;
00396
00397 <font class="keywordflow">return</font> TRUE;
00398 }
00399
00407 dbus_bool_t
<a name="l00408"></a><a class="code" href="group__DBusInternalsUtils.html#a118">00408</a> _dbus_get_group_id (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *groupname,
00409 dbus_gid_t *gid)
00410 {
00411 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db;
00412 <font class="keyword">const</font> <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info;
00413 _dbus_user_database_lock_system ();
00414
00415 db = _dbus_user_database_get_system ();
00416 <font class="keywordflow">if</font> (db == NULL)
00417 {
00418 _dbus_user_database_unlock_system ();
00419 <font class="keywordflow">return</font> FALSE;
00420 }
00421
00422 <font class="keywordflow">if</font> (!_dbus_user_database_get_groupname (db, groupname,
00423 &info, NULL))
00424 {
00425 _dbus_user_database_unlock_system ();
00426 <font class="keywordflow">return</font> FALSE;
00427 }
00428
00429 *gid = info-><a class="code" href="structDBusGroupInfo.html#m0">gid</a>;
00430
00431 _dbus_user_database_unlock_system ();
00432 <font class="keywordflow">return</font> TRUE;
00433 }
00434
00442 dbus_bool_t
<a name="l00443"></a><a class="code" href="group__DBusInternalsUtils.html#a119">00443</a> _dbus_homedir_from_username (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
00444 <a class="code" href="structDBusString.html">DBusString</a> *homedir)
00445 {
00446 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db;
00447 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00448 _dbus_user_database_lock_system ();
00449
00450 db = _dbus_user_database_get_system ();
00451 <font class="keywordflow">if</font> (db == NULL)
00452 {
00453 _dbus_user_database_unlock_system ();
00454 <font class="keywordflow">return</font> FALSE;
00455 }
00456
00457 <font class="keywordflow">if</font> (!_dbus_user_database_get_username (db, username,
00458 &info, NULL))
00459 {
00460 _dbus_user_database_unlock_system ();
00461 <font class="keywordflow">return</font> FALSE;
00462 }
00463
00464 <font class="keywordflow">if</font> (!_dbus_string_append (homedir, info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a>))
00465 {
00466 _dbus_user_database_unlock_system ();
00467 <font class="keywordflow">return</font> FALSE;
00468 }
00469
00470 _dbus_user_database_unlock_system ();
00471 <font class="keywordflow">return</font> TRUE;
00472 }
00473
00481 dbus_bool_t
<a name="l00482"></a><a class="code" href="group__DBusInternalsUtils.html#a120">00482</a> _dbus_uid_from_string (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *uid_str,
00483 dbus_uid_t *uid)
00484 {
00485 <font class="keywordtype">int</font> end;
00486 <font class="keywordtype">long</font> val;
00487
00488 <font class="keywordflow">if</font> (_dbus_string_get_length (uid_str) == 0)
00489 {
00490 _dbus_verbose (<font class="stringliteral">"UID string was zero length\n"</font>);
00491 <font class="keywordflow">return</font> FALSE;
00492 }
00493
00494 val = -1;
00495 end = 0;
00496 <font class="keywordflow">if</font> (!_dbus_string_parse_int (uid_str, 0, &val,
00497 &end))
00498 {
00499 _dbus_verbose (<font class="stringliteral">"could not parse string as a UID\n"</font>);
00500 <font class="keywordflow">return</font> FALSE;
00501 }
00502
00503 <font class="keywordflow">if</font> (end != _dbus_string_get_length (uid_str))
00504 {
00505 _dbus_verbose (<font class="stringliteral">"string contained trailing stuff after UID\n"</font>);
00506 <font class="keywordflow">return</font> FALSE;
00507 }
00508
00509 *uid = val;
00510
00511 <font class="keywordflow">return</font> TRUE;
00512 }
00513
00521 dbus_bool_t
<a name="l00522"></a><a class="code" href="group__DBusInternalsUtils.html#a121">00522</a> _dbus_credentials_from_username (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
00523 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
00524 {
00525 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db;
00526 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00527 _dbus_user_database_lock_system ();
00528
00529 db = _dbus_user_database_get_system ();
00530 <font class="keywordflow">if</font> (db == NULL)
00531 {
00532 _dbus_user_database_unlock_system ();
00533 <font class="keywordflow">return</font> FALSE;
00534 }
00535
00536 <font class="keywordflow">if</font> (!_dbus_user_database_get_username (db, username,
00537 &info, NULL))
00538 {
00539 _dbus_user_database_unlock_system ();
00540 <font class="keywordflow">return</font> FALSE;
00541 }
00542
00543 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = DBUS_PID_UNSET;
00544 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = info-><a class="code" href="structDBusUserInfo.html#m0">uid</a>;
00545 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>;
00546
00547 _dbus_user_database_unlock_system ();
00548 <font class="keywordflow">return</font> TRUE;
00549 }
00550
00558 dbus_bool_t
<a name="l00559"></a><a class="code" href="group__DBusInternalsUtils.html#a122">00559</a> _dbus_credentials_from_uid (dbus_uid_t uid,
00560 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
00561 {
00562 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db;
00563 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00564 _dbus_user_database_lock_system ();
00565
00566 db = _dbus_user_database_get_system ();
00567 <font class="keywordflow">if</font> (db == NULL)
00568 {
00569 _dbus_user_database_unlock_system ();
00570 <font class="keywordflow">return</font> FALSE;
00571 }
00572
00573 <font class="keywordflow">if</font> (!_dbus_user_database_get_uid (db, uid,
00574 &info, NULL))
00575 {
00576 _dbus_user_database_unlock_system ();
00577 <font class="keywordflow">return</font> FALSE;
00578 }
00579
00580 _dbus_assert (info-><a class="code" href="structDBusUserInfo.html#m0">uid</a> == uid);
00581
00582 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = DBUS_PID_UNSET;
00583 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = info-><a class="code" href="structDBusUserInfo.html#m0">uid</a>;
00584 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>;
00585
00586 _dbus_user_database_unlock_system ();
00587 <font class="keywordflow">return</font> TRUE;
00588 }
00589
00595 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a>*
<a name="l00596"></a><a class="code" href="group__DBusInternalsUtils.html#a123">00596</a> _dbus_user_database_new (<font class="keywordtype">void</font>)
00597 {
00598 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db;
00599
00600 db = dbus_new0 (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a>, 1);
00601 <font class="keywordflow">if</font> (db == NULL)
00602 <font class="keywordflow">return</font> NULL;
00603
00604 db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> = 1;
00605
00606 db-><a class="code" href="structDBusUserDatabase.html#m1">users</a> = _dbus_hash_table_new (DBUS_HASH_ULONG,
00607 NULL, free_user_info);
00608
00609 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a> == NULL)
00610 <font class="keywordflow">goto</font> failed;
00611
00612 db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a> = _dbus_hash_table_new (DBUS_HASH_ULONG,
00613 NULL, free_group_info);
00614
00615 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a> == NULL)
00616 <font class="keywordflow">goto</font> failed;
00617
00618 db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a> = _dbus_hash_table_new (DBUS_HASH_STRING,
00619 NULL, NULL);
00620 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a> == NULL)
00621 <font class="keywordflow">goto</font> failed;
00622
00623 db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a> = _dbus_hash_table_new (DBUS_HASH_STRING,
00624 NULL, NULL);
00625 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a> == NULL)
00626 <font class="keywordflow">goto</font> failed;
00627
00628 <font class="keywordflow">return</font> db;
00629
00630 failed:
00631 _dbus_user_database_unref (db);
00632 <font class="keywordflow">return</font> NULL;
00633 }
00634
00640 <a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *
<a name="l00641"></a><a class="code" href="group__DBusInternalsUtils.html#a124">00641</a> _dbus_user_database_ref (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db)
00642 {
00643 _dbus_assert (db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> > 0);
00644
00645 db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> += 1;
00646
00647 <font class="keywordflow">return</font> db;
00648 }
00649
00654 <font class="keywordtype">void</font>
<a name="l00655"></a><a class="code" href="group__DBusInternalsUtils.html#a125">00655</a> _dbus_user_database_unref (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db)
00656 {
00657 _dbus_assert (db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> > 0);
00658
00659 db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> -= 1;
00660 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m0">refcount</a> == 0)
00661 {
00662 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a>)
00663 _dbus_hash_table_unref (db-><a class="code" href="structDBusUserDatabase.html#m1">users</a>);
00664
00665 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a>)
00666 _dbus_hash_table_unref (db-><a class="code" href="structDBusUserDatabase.html#m2">groups</a>);
00667
00668 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a>)
00669 _dbus_hash_table_unref (db-><a class="code" href="structDBusUserDatabase.html#m3">users_by_name</a>);
00670
00671 <font class="keywordflow">if</font> (db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a>)
00672 _dbus_hash_table_unref (db-><a class="code" href="structDBusUserDatabase.html#m4">groups_by_name</a>);
00673
00674 dbus_free (db);
00675 }
00676 }
00677
00691 dbus_bool_t
<a name="l00692"></a><a class="code" href="group__DBusInternalsUtils.html#a126">00692</a> _dbus_user_database_get_groups (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00693 dbus_uid_t uid,
00694 dbus_gid_t **group_ids,
00695 <font class="keywordtype">int</font> *n_group_ids,
00696 <a class="code" href="structDBusError.html">DBusError</a> *error)
00697 {
00698 <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info;
00699
00700 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00701
00702 *group_ids = NULL;
00703 *n_group_ids = 0;
00704
00705 info = _dbus_user_database_lookup (db, uid, NULL, error);
00706 <font class="keywordflow">if</font> (info == NULL)
00707 {
00708 _DBUS_ASSERT_ERROR_IS_SET (error);
00709 <font class="keywordflow">return</font> FALSE;
00710 }
00711
00712 <font class="keywordflow">if</font> (info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a> > 0)
00713 {
00714 *group_ids = dbus_new (dbus_gid_t, info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a>);
00715 <font class="keywordflow">if</font> (*group_ids == NULL)
00716 {
00717 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00718 <font class="keywordflow">return</font> FALSE;
00719 }
00720
00721 *n_group_ids = info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a>;
00722
00723 memcpy (*group_ids, info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a>, info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a> * sizeof (dbus_gid_t));
00724 }
00725
00726 <font class="keywordflow">return</font> TRUE;
00727 }
00728
00739 dbus_bool_t
<a name="l00740"></a><a class="code" href="group__DBusInternalsUtils.html#a127">00740</a> _dbus_user_database_get_uid (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00741 dbus_uid_t uid,
00742 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> **info,
00743 <a class="code" href="structDBusError.html">DBusError</a> *error)
00744 {
00745 *info = _dbus_user_database_lookup (db, uid, NULL, error);
00746 <font class="keywordflow">return</font> *info != NULL;
00747 }
00748
00759 dbus_bool_t
<a name="l00760"></a><a class="code" href="group__DBusInternalsUtils.html#a128">00760</a> _dbus_user_database_get_gid (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00761 dbus_gid_t gid,
00762 <font class="keyword">const</font> <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> **info,
00763 <a class="code" href="structDBusError.html">DBusError</a> *error)
00764 {
00765 *info = _dbus_user_database_lookup_group (db, gid, NULL, error);
00766 <font class="keywordflow">return</font> *info != NULL;
00767 }
00768
00778 dbus_bool_t
<a name="l00779"></a><a class="code" href="group__DBusInternalsUtils.html#a129">00779</a> _dbus_user_database_get_username (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00780 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
00781 <font class="keyword">const</font> <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> **info,
00782 <a class="code" href="structDBusError.html">DBusError</a> *error)
00783 {
00784 *info = _dbus_user_database_lookup (db, DBUS_UID_UNSET, username, error);
00785 <font class="keywordflow">return</font> *info != NULL;
00786 }
00787
00798 dbus_bool_t
<a name="l00799"></a><a class="code" href="group__DBusInternalsUtils.html#a130">00799</a> _dbus_user_database_get_groupname (<a class="code" href="structDBusUserDatabase.html">DBusUserDatabase</a> *db,
00800 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *groupname,
00801 <font class="keyword">const</font> <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> **info,
00802 <a class="code" href="structDBusError.html">DBusError</a> *error)
00803 {
00804 *info = _dbus_user_database_lookup_group (db, DBUS_GID_UNSET, groupname, error);
00805 <font class="keywordflow">return</font> *info != NULL;
00806 }
00807
00810 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
00811 <font class="preprocessor"></font><font class="preprocessor">#include <stdio.h></font>
00812
00818 dbus_bool_t
00819 _dbus_userdb_test (<font class="keyword">const</font> <font class="keywordtype">char</font> *test_data_dir)
00820 {
00821 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username;
00822 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *homedir;
00823
00824 <font class="keywordflow">if</font> (!_dbus_username_from_current_process (&username))
00825 _dbus_assert_not_reached (<font class="stringliteral">"didn't get username"</font>);
00826
00827 <font class="keywordflow">if</font> (!_dbus_homedir_from_current_process (&homedir))
00828 _dbus_assert_not_reached (<font class="stringliteral">"didn't get homedir"</font>);
00829
00830 printf (<font class="stringliteral">" Current user: %s homedir: %s\n"</font>,
00831 _dbus_string_get_const_data (username),
00832 _dbus_string_get_const_data (homedir));
00833
00834 <font class="keywordflow">return</font> TRUE;
00835 }
00836 <font class="preprocessor">#endif </font><font class="comment">/* DBUS_BUILD_TESTS */</font>
</pre></div><hr><address align="right"><small>Generated on Wed Jun 9 05:01:27 2004 for D-BUS by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0
width=110 height=53></a>1.2.15 </small></address>
</body>
</html>
distrib
>
Mandriva
>
2007.0
>
x86_64
>
media
>
main-release
>
by-pkgid
>
926d2d1e3111287cee1b0a4fad4fb4f6
>
files
>
144
