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<hr><h1>dbus-sysdeps.c</h1><div class="fragment"><pre>00001 <font class="comment">/* -*- mode: C; c-file-style: "gnu" -*- */</font>
00002 <font class="comment">/* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation)</font>
00003 <font class="comment"> * </font>
00004 <font class="comment"> * Copyright (C) 2002, 2003 Red Hat, Inc.</font>
00005 <font class="comment"> * Copyright (C) 2003 CodeFactory AB</font>
00006 <font class="comment"> *</font>
00007 <font class="comment"> * Licensed under the Academic Free License version 2.0</font>
00008 <font class="comment"> * </font>
00009 <font class="comment"> * This program is free software; you can redistribute it and/or modify</font>
00010 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00011 <font class="comment"> * the Free Software Foundation; either version 2 of the License, or</font>
00012 <font class="comment"> * (at your option) any later version.</font>
00013 <font class="comment"> *</font>
00014 <font class="comment"> * This program is distributed in the hope that it will be useful,</font>
00015 <font class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00016 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00017 <font class="comment"> * GNU General Public License for more details.</font>
00018 <font class="comment"> * </font>
00019 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00020 <font class="comment"> * along with this program; if not, write to the Free Software</font>
00021 <font class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00022 <font class="comment"> *</font>
00023 <font class="comment"> */</font>
00024
00025 <font class="preprocessor">#include "dbus-internals.h"</font>
00026 <font class="preprocessor">#include "dbus-sysdeps.h"</font>
00027 <font class="preprocessor">#include "dbus-threads.h"</font>
00028 <font class="preprocessor">#include "dbus-test.h"</font>
00029 <font class="preprocessor">#include <sys/types.h></font>
00030 <font class="preprocessor">#include <stdlib.h></font>
00031 <font class="preprocessor">#include <string.h></font>
00032 <font class="preprocessor">#include <signal.h></font>
00033 <font class="preprocessor">#include <unistd.h></font>
00034 <font class="preprocessor">#include <stdio.h></font>
00035 <font class="preprocessor">#include <errno.h></font>
00036 <font class="preprocessor">#include <fcntl.h></font>
00037 <font class="preprocessor">#include <sys/socket.h></font>
00038 <font class="preprocessor">#include <dirent.h></font>
00039 <font class="preprocessor">#include <sys/un.h></font>
00040 <font class="preprocessor">#include <pwd.h></font>
00041 <font class="preprocessor">#include <time.h></font>
00042 <font class="preprocessor">#include <locale.h></font>
00043 <font class="preprocessor">#include <sys/time.h></font>
00044 <font class="preprocessor">#include <sys/stat.h></font>
00045 <font class="preprocessor">#include <sys/wait.h></font>
00046 <font class="preprocessor">#include <netinet/in.h></font>
00047 <font class="preprocessor">#include <netdb.h></font>
00048 <font class="preprocessor">#include <grp.h></font>
00049
00050 <font class="preprocessor">#ifdef HAVE_WRITEV</font>
00051 <font class="preprocessor"></font><font class="preprocessor">#include <sys/uio.h></font>
00052 <font class="preprocessor">#endif</font>
00053 <font class="preprocessor"></font><font class="preprocessor">#ifdef HAVE_POLL</font>
00054 <font class="preprocessor"></font><font class="preprocessor">#include <sys/poll.h></font>
00055 <font class="preprocessor">#endif</font>
00056 <font class="preprocessor"></font><font class="preprocessor">#ifdef HAVE_BACKTRACE</font>
00057 <font class="preprocessor"></font><font class="preprocessor">#include <execinfo.h></font>
00058 <font class="preprocessor">#endif</font>
00059 <font class="preprocessor"></font>
00060
00061 <font class="preprocessor">#ifndef O_BINARY</font>
00062 <font class="preprocessor"></font><font class="preprocessor">#define O_BINARY 0</font>
00063 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00064 <font class="preprocessor"></font>
00065 <font class="preprocessor">#ifndef HAVE_SOCKLEN_T</font>
00066 <font class="preprocessor"></font><font class="preprocessor">#define socklen_t int</font>
00067 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00068 <font class="preprocessor"></font>
00076 <font class="keywordtype">void</font>
<a name="l00077"></a><a class="code" href="group__DBusInternalsUtils.html#a44">00077</a> _dbus_abort (<font class="keywordtype">void</font>)
00078 {
00079 <font class="preprocessor">#ifdef DBUS_ENABLE_VERBOSE_MODE</font>
00080 <font class="preprocessor"></font> <font class="keyword">const</font> <font class="keywordtype">char</font> *s;
00081 s = _dbus_getenv (<font class="stringliteral">"DBUS_PRINT_BACKTRACE"</font>);
00082 <font class="keywordflow">if</font> (s && *s)
00083 _dbus_print_backtrace ();
00084 <font class="preprocessor">#endif</font>
00085 <font class="preprocessor"></font> abort ();
00086 _exit (1); <font class="comment">/* in case someone manages to ignore SIGABRT */</font>
00087 }
00088
00100 dbus_bool_t
<a name="l00101"></a><a class="code" href="group__DBusInternalsUtils.html#a45">00101</a> _dbus_setenv (<font class="keyword">const</font> <font class="keywordtype">char</font> *varname,
00102 <font class="keyword">const</font> <font class="keywordtype">char</font> *value)
00103 {
00104 _dbus_assert (varname != NULL);
00105
00106 <font class="keywordflow">if</font> (value == NULL)
00107 {
00108 <font class="preprocessor">#ifdef HAVE_UNSETENV</font>
00109 <font class="preprocessor"></font> unsetenv (varname);
00110 <font class="keywordflow">return</font> TRUE;
00111 <font class="preprocessor">#else</font>
00112 <font class="preprocessor"></font> <font class="keywordtype">char</font> *putenv_value;
00113 size_t len;
00114
00115 len = strlen (varname);
00116
00117 <font class="comment">/* Use system malloc to avoid memleaks that dbus_malloc</font>
00118 <font class="comment"> * will get upset about.</font>
00119 <font class="comment"> */</font>
00120
00121 putenv_value = malloc (len + 1);
00122 <font class="keywordflow">if</font> (putenv_value == NULL)
00123 <font class="keywordflow">return</font> FALSE;
00124
00125 strcpy (putenv_value, varname);
00126
00127 <font class="keywordflow">return</font> (putenv (putenv_value) == 0);
00128 <font class="preprocessor">#endif</font>
00129 <font class="preprocessor"></font> }
00130 <font class="keywordflow">else</font>
00131 {
00132 <font class="preprocessor">#ifdef HAVE_SETENV</font>
00133 <font class="preprocessor"></font> <font class="keywordflow">return</font> (setenv (varname, value, TRUE) == 0);
00134 <font class="preprocessor">#else</font>
00135 <font class="preprocessor"></font> <font class="keywordtype">char</font> *putenv_value;
00136 size_t len;
00137 size_t varname_len;
00138 size_t value_len;
00139
00140 varname_len = strlen (varname);
00141 value_len = strlen (value);
00142
00143 len = varname_len + value_len + 1 <font class="comment">/* '=' */</font> ;
00144
00145 <font class="comment">/* Use system malloc to avoid memleaks that dbus_malloc</font>
00146 <font class="comment"> * will get upset about.</font>
00147 <font class="comment"> */</font>
00148
00149 putenv_value = malloc (len + 1);
00150 <font class="keywordflow">if</font> (putenv_value == NULL)
00151 <font class="keywordflow">return</font> FALSE;
00152
00153 strcpy (putenv_value, varname);
00154 strcpy (putenv_value + varname_len, <font class="stringliteral">"="</font>);
00155 strcpy (putenv_value + varname_len + 1, value);
00156
00157 <font class="keywordflow">return</font> (putenv (putenv_value) == 0);
00158 <font class="preprocessor">#endif</font>
00159 <font class="preprocessor"></font> }
00160 }
00161
00168 <font class="keyword">const</font> <font class="keywordtype">char</font>*
<a name="l00169"></a><a class="code" href="group__DBusInternalsUtils.html#a46">00169</a> _dbus_getenv (<font class="keyword">const</font> <font class="keywordtype">char</font> *varname)
00170 {
00171 <font class="keywordflow">return</font> getenv (varname);
00172 }
00173
00187 <font class="keywordtype">int</font>
<a name="l00188"></a><a class="code" href="group__DBusInternalsUtils.html#a47">00188</a> _dbus_read (<font class="keywordtype">int</font> fd,
00189 <a class="code" href="structDBusString.html">DBusString</a> *buffer,
00190 <font class="keywordtype">int</font> count)
00191 {
00192 <font class="keywordtype">int</font> bytes_read;
00193 <font class="keywordtype">int</font> start;
00194 <font class="keywordtype">char</font> *data;
00195
00196 _dbus_assert (count >= 0);
00197
00198 start = _dbus_string_get_length (buffer);
00199
00200 <font class="keywordflow">if</font> (!_dbus_string_lengthen (buffer, count))
00201 {
00202 errno = ENOMEM;
00203 <font class="keywordflow">return</font> -1;
00204 }
00205
00206 data = _dbus_string_get_data_len (buffer, start, count);
00207
00208 again:
00209
00210 bytes_read = read (fd, data, count);
00211
00212 <font class="keywordflow">if</font> (bytes_read < 0)
00213 {
00214 <font class="keywordflow">if</font> (errno == EINTR)
00215 <font class="keywordflow">goto</font> again;
00216 <font class="keywordflow">else</font>
00217 {
00218 <font class="comment">/* put length back (note that this doesn't actually realloc anything) */</font>
00219 _dbus_string_set_length (buffer, start);
00220 <font class="keywordflow">return</font> -1;
00221 }
00222 }
00223 <font class="keywordflow">else</font>
00224 {
00225 <font class="comment">/* put length back (doesn't actually realloc) */</font>
00226 _dbus_string_set_length (buffer, start + bytes_read);
00227
00228 <font class="preprocessor">#if 0</font>
00229 <font class="preprocessor"></font> <font class="keywordflow">if</font> (bytes_read > 0)
00230 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
00231 <font class="preprocessor">#endif</font>
00232 <font class="preprocessor"></font>
00233 <font class="keywordflow">return</font> bytes_read;
00234 }
00235 }
00236
00247 <font class="keywordtype">int</font>
<a name="l00248"></a><a class="code" href="group__DBusInternalsUtils.html#a48">00248</a> _dbus_write (<font class="keywordtype">int</font> fd,
00249 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *buffer,
00250 <font class="keywordtype">int</font> start,
00251 <font class="keywordtype">int</font> len)
00252 {
00253 <font class="keyword">const</font> <font class="keywordtype">char</font> *data;
00254 <font class="keywordtype">int</font> bytes_written;
00255
00256 data = _dbus_string_get_const_data_len (buffer, start, len);
00257
00258 again:
00259
00260 bytes_written = write (fd, data, len);
00261
00262 <font class="keywordflow">if</font> (bytes_written < 0 && errno == EINTR)
00263 <font class="keywordflow">goto</font> again;
00264
00265 <font class="preprocessor">#if 0</font>
00266 <font class="preprocessor"></font> <font class="keywordflow">if</font> (bytes_written > 0)
00267 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
00268 <font class="preprocessor">#endif</font>
00269 <font class="preprocessor"></font>
00270 <font class="keywordflow">return</font> bytes_written;
00271 }
00272
00293 <font class="keywordtype">int</font>
<a name="l00294"></a><a class="code" href="group__DBusInternalsUtils.html#a49">00294</a> _dbus_write_two (<font class="keywordtype">int</font> fd,
00295 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *buffer1,
00296 <font class="keywordtype">int</font> start1,
00297 <font class="keywordtype">int</font> len1,
00298 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *buffer2,
00299 <font class="keywordtype">int</font> start2,
00300 <font class="keywordtype">int</font> len2)
00301 {
00302 _dbus_assert (buffer1 != NULL);
00303 _dbus_assert (start1 >= 0);
00304 _dbus_assert (start2 >= 0);
00305 _dbus_assert (len1 >= 0);
00306 _dbus_assert (len2 >= 0);
00307
00308 <font class="preprocessor">#ifdef HAVE_WRITEV</font>
00309 <font class="preprocessor"></font> {
00310 <font class="keyword">struct </font>iovec vectors[2];
00311 <font class="keyword">const</font> <font class="keywordtype">char</font> *data1;
00312 <font class="keyword">const</font> <font class="keywordtype">char</font> *data2;
00313 <font class="keywordtype">int</font> bytes_written;
00314
00315 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
00316
00317 <font class="keywordflow">if</font> (buffer2 != NULL)
00318 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
00319 <font class="keywordflow">else</font>
00320 {
00321 data2 = NULL;
00322 start2 = 0;
00323 len2 = 0;
00324 }
00325
00326 vectors[0].iov_base = (<font class="keywordtype">char</font>*) data1;
00327 vectors[0].iov_len = len1;
00328 vectors[1].iov_base = (<font class="keywordtype">char</font>*) data2;
00329 vectors[1].iov_len = len2;
00330
00331 again:
00332
00333 bytes_written = writev (fd,
00334 vectors,
00335 data2 ? 2 : 1);
00336
00337 <font class="keywordflow">if</font> (bytes_written < 0 && errno == EINTR)
00338 <font class="keywordflow">goto</font> again;
00339
00340 <font class="keywordflow">return</font> bytes_written;
00341 }
00342 <font class="preprocessor">#else </font><font class="comment">/* HAVE_WRITEV */</font>
00343 {
00344 <font class="keywordtype">int</font> ret1;
00345
00346 ret1 = _dbus_write (fd, buffer1, start1, len1);
00347 <font class="keywordflow">if</font> (ret1 == len1 && buffer2 != NULL)
00348 {
00349 ret2 = _dbus_write (fd, buffer2, start2, len2);
00350 <font class="keywordflow">if</font> (ret2 < 0)
00351 ret2 = 0; <font class="comment">/* we can't report an error as the first write was OK */</font>
00352
00353 <font class="keywordflow">return</font> ret1 + ret2;
00354 }
00355 <font class="keywordflow">else</font>
00356 <font class="keywordflow">return</font> ret1;
00357 }
00358 <font class="preprocessor">#endif </font><font class="comment">/* !HAVE_WRITEV */</font>
00359 }
00360
00361 <font class="preprocessor">#define _DBUS_MAX_SUN_PATH_LENGTH 99</font>
00362 <font class="preprocessor"></font>
00390 <font class="keywordtype">int</font>
<a name="l00391"></a><a class="code" href="group__DBusInternalsUtils.html#a50">00391</a> _dbus_connect_unix_socket (<font class="keyword">const</font> <font class="keywordtype">char</font> *path,
00392 dbus_bool_t <font class="keyword">abstract</font>,
00393 <a class="code" href="structDBusError.html">DBusError</a> *error)
00394 {
00395 <font class="keywordtype">int</font> fd;
00396 <font class="keyword">struct </font>sockaddr_un addr;
00397
00398 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00399
00400 _dbus_verbose (<font class="stringliteral">"connecting to unix socket %s abstract=%d\n"</font>,
00401 path, <font class="keyword">abstract</font>);
00402
00403 fd = socket (PF_UNIX, SOCK_STREAM, 0);
00404
00405 <font class="keywordflow">if</font> (fd < 0)
00406 {
00407 dbus_set_error (error,
00408 _dbus_error_from_errno (errno),
00409 <font class="stringliteral">"Failed to create socket: %s"</font>,
00410 _dbus_strerror (errno));
00411
00412 <font class="keywordflow">return</font> -1;
00413 }
00414
00415 _DBUS_ZERO (addr);
00416 addr.sun_family = AF_UNIX;
00417
00418 <font class="keywordflow">if</font> (abstract)
00419 {
00420 <font class="preprocessor">#ifdef HAVE_ABSTRACT_SOCKETS</font>
00421 <font class="preprocessor"></font> <font class="comment">/* remember that abstract names aren't nul-terminated so we rely</font>
00422 <font class="comment"> * on sun_path being filled in with zeroes above.</font>
00423 <font class="comment"> */</font>
00424 addr.sun_path[0] = <font class="charliteral">'\0'</font>; <font class="comment">/* this is what says "use abstract" */</font>
00425 strncpy (&addr.sun_path[1], path, _DBUS_MAX_SUN_PATH_LENGTH - 2);
00426 <font class="comment">/* _dbus_verbose_bytes (addr.sun_path, sizeof (addr.sun_path)); */</font>
00427 <font class="preprocessor">#else </font><font class="comment">/* HAVE_ABSTRACT_SOCKETS */</font>
00428 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED,
00429 <font class="stringliteral">"Operating system does not support abstract socket namespace\n"</font>);
00430 close (fd);
00431 <font class="keywordflow">return</font> -1;
00432 <font class="preprocessor">#endif </font><font class="comment">/* ! HAVE_ABSTRACT_SOCKETS */</font>
00433 }
00434 <font class="keywordflow">else</font>
00435 {
00436 strncpy (addr.sun_path, path, _DBUS_MAX_SUN_PATH_LENGTH - 1);
00437 }
00438
00439 <font class="keywordflow">if</font> (connect (fd, (<font class="keyword">struct</font> sockaddr*) &addr, <font class="keyword">sizeof</font> (addr)) < 0)
00440 {
00441 dbus_set_error (error,
00442 _dbus_error_from_errno (errno),
00443 <font class="stringliteral">"Failed to connect to socket %s: %s"</font>,
00444 path, _dbus_strerror (errno));
00445
00446 close (fd);
00447 fd = -1;
00448
00449 <font class="keywordflow">return</font> -1;
00450 }
00451
00452 <font class="keywordflow">if</font> (!_dbus_set_fd_nonblocking (fd, error))
00453 {
00454 _DBUS_ASSERT_ERROR_IS_SET (error);
00455
00456 close (fd);
00457 fd = -1;
00458
00459 <font class="keywordflow">return</font> -1;
00460 }
00461
00462 <font class="keywordflow">return</font> fd;
00463 }
00464
00480 <font class="keywordtype">int</font>
<a name="l00481"></a><a class="code" href="group__DBusInternalsUtils.html#a51">00481</a> _dbus_listen_unix_socket (<font class="keyword">const</font> <font class="keywordtype">char</font> *path,
00482 dbus_bool_t <font class="keyword">abstract</font>,
00483 <a class="code" href="structDBusError.html">DBusError</a> *error)
00484 {
00485 <font class="keywordtype">int</font> listen_fd;
00486 <font class="keyword">struct </font>sockaddr_un addr;
00487
00488 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00489
00490 _dbus_verbose (<font class="stringliteral">"listening on unix socket %s abstract=%d\n"</font>,
00491 path, <font class="keyword">abstract</font>);
00492
00493 listen_fd = socket (PF_UNIX, SOCK_STREAM, 0);
00494
00495 <font class="keywordflow">if</font> (listen_fd < 0)
00496 {
00497 dbus_set_error (error, _dbus_error_from_errno (errno),
00498 <font class="stringliteral">"Failed to create socket \"%s\": %s"</font>,
00499 path, _dbus_strerror (errno));
00500 <font class="keywordflow">return</font> -1;
00501 }
00502
00503 _DBUS_ZERO (addr);
00504 addr.sun_family = AF_UNIX;
00505
00506 <font class="keywordflow">if</font> (abstract)
00507 {
00508 <font class="preprocessor">#ifdef HAVE_ABSTRACT_SOCKETS</font>
00509 <font class="preprocessor"></font> <font class="comment">/* remember that abstract names aren't nul-terminated so we rely</font>
00510 <font class="comment"> * on sun_path being filled in with zeroes above.</font>
00511 <font class="comment"> */</font>
00512 addr.sun_path[0] = <font class="charliteral">'\0'</font>; <font class="comment">/* this is what says "use abstract" */</font>
00513 strncpy (&addr.sun_path[1], path, _DBUS_MAX_SUN_PATH_LENGTH - 2);
00514 <font class="comment">/* _dbus_verbose_bytes (addr.sun_path, sizeof (addr.sun_path)); */</font>
00515 <font class="preprocessor">#else </font><font class="comment">/* HAVE_ABSTRACT_SOCKETS */</font>
00516 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED,
00517 <font class="stringliteral">"Operating system does not support abstract socket namespace\n"</font>);
00518 close (listen_fd);
00519 <font class="keywordflow">return</font> -1;
00520 <font class="preprocessor">#endif </font><font class="comment">/* ! HAVE_ABSTRACT_SOCKETS */</font>
00521 }
00522 <font class="keywordflow">else</font>
00523 {
00524 <font class="comment">/* FIXME discussed security implications of this with Nalin,</font>
00525 <font class="comment"> * and we couldn't think of where it would kick our ass, but</font>
00526 <font class="comment"> * it still seems a bit sucky. It also has non-security suckage;</font>
00527 <font class="comment"> * really we'd prefer to exit if the socket is already in use.</font>
00528 <font class="comment"> * But there doesn't seem to be a good way to do this.</font>
00529 <font class="comment"> *</font>
00530 <font class="comment"> * Just to be extra careful, I threw in the stat() - clearly</font>
00531 <font class="comment"> * the stat() can't *fix* any security issue, but it at least</font>
00532 <font class="comment"> * avoids inadvertent/accidental data loss.</font>
00533 <font class="comment"> */</font>
00534 {
00535 <font class="keyword">struct </font>stat sb;
00536
00537 <font class="keywordflow">if</font> (stat (path, &sb) == 0 &&
00538 S_ISSOCK (sb.st_mode))
00539 unlink (path);
00540 }
00541
00542 strncpy (addr.sun_path, path, _DBUS_MAX_SUN_PATH_LENGTH - 1);
00543 }
00544
00545 <font class="keywordflow">if</font> (bind (listen_fd, (<font class="keyword">struct</font> sockaddr*) &addr, <font class="keyword">sizeof</font> (addr)) < 0)
00546 {
00547 dbus_set_error (error, _dbus_error_from_errno (errno),
00548 <font class="stringliteral">"Failed to bind socket \"%s\": %s"</font>,
00549 path, _dbus_strerror (errno));
00550 close (listen_fd);
00551 <font class="keywordflow">return</font> -1;
00552 }
00553
00554 <font class="keywordflow">if</font> (listen (listen_fd, 30 <font class="comment">/* backlog */</font>) < 0)
00555 {
00556 dbus_set_error (error, _dbus_error_from_errno (errno),
00557 <font class="stringliteral">"Failed to listen on socket \"%s\": %s"</font>,
00558 path, _dbus_strerror (errno));
00559 close (listen_fd);
00560 <font class="keywordflow">return</font> -1;
00561 }
00562
00563 <font class="keywordflow">if</font> (!_dbus_set_fd_nonblocking (listen_fd, error))
00564 {
00565 _DBUS_ASSERT_ERROR_IS_SET (error);
00566 close (listen_fd);
00567 <font class="keywordflow">return</font> -1;
00568 }
00569
00570 <font class="comment">/* Try opening up the permissions, but if we can't, just go ahead</font>
00571 <font class="comment"> * and continue, maybe it will be good enough.</font>
00572 <font class="comment"> */</font>
00573 <font class="keywordflow">if</font> (!<font class="keyword">abstract</font> && chmod (path, 0777) < 0)
00574 _dbus_warn (<font class="stringliteral">"Could not set mode 0777 on socket %s\n"</font>,
00575 path);
00576
00577 <font class="keywordflow">return</font> listen_fd;
00578 }
00579
00590 <font class="keywordtype">int</font>
<a name="l00591"></a><a class="code" href="group__DBusInternalsUtils.html#a52">00591</a> _dbus_connect_tcp_socket (<font class="keyword">const</font> <font class="keywordtype">char</font> *host,
00592 dbus_uint32_t port,
00593 <a class="code" href="structDBusError.html">DBusError</a> *error)
00594 {
00595 <font class="keywordtype">int</font> fd;
00596 <font class="keyword">struct </font>sockaddr_in addr;
00597 <font class="keyword">struct </font>hostent *he;
00598 <font class="keyword">struct </font>in_addr *haddr;
00599
00600 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00601
00602 fd = socket (AF_INET, SOCK_STREAM, 0);
00603
00604 <font class="keywordflow">if</font> (fd < 0)
00605 {
00606 dbus_set_error (error,
00607 _dbus_error_from_errno (errno),
00608 <font class="stringliteral">"Failed to create socket: %s"</font>,
00609 _dbus_strerror (errno));
00610
00611 <font class="keywordflow">return</font> -1;
00612 }
00613
00614 <font class="keywordflow">if</font> (host == NULL)
00615 host = <font class="stringliteral">"localhost"</font>;
00616
00617 he = gethostbyname (host);
00618 <font class="keywordflow">if</font> (he == NULL)
00619 {
00620 dbus_set_error (error,
00621 _dbus_error_from_errno (errno),
00622 <font class="stringliteral">"Failed to lookup hostname: %s"</font>,
00623 host);
00624 <font class="keywordflow">return</font> -1;
00625 }
00626
00627 haddr = ((<font class="keyword">struct </font>in_addr *) (he->h_addr_list)[0]);
00628
00629 _DBUS_ZERO (addr);
00630 memcpy (&addr.sin_addr, haddr, <font class="keyword">sizeof</font>(<font class="keyword">struct</font> in_addr));
00631 addr.sin_family = AF_INET;
00632 addr.sin_port = htons (port);
00633
00634 <font class="keywordflow">if</font> (connect (fd, (<font class="keyword">struct</font> sockaddr*) &addr, <font class="keyword">sizeof</font> (addr)) < 0)
00635 {
00636 dbus_set_error (error,
00637 _dbus_error_from_errno (errno),
00638 <font class="stringliteral">"Failed to connect to socket %s: %s:%d"</font>,
00639 host, _dbus_strerror (errno), port);
00640
00641 close (fd);
00642 fd = -1;
00643
00644 <font class="keywordflow">return</font> -1;
00645 }
00646
00647 <font class="keywordflow">if</font> (!_dbus_set_fd_nonblocking (fd, error))
00648 {
00649 close (fd);
00650 fd = -1;
00651
00652 <font class="keywordflow">return</font> -1;
00653 }
00654
00655 <font class="keywordflow">return</font> fd;
00656 }
00657
00668 <font class="keywordtype">int</font>
<a name="l00669"></a><a class="code" href="group__DBusInternalsUtils.html#a53">00669</a> _dbus_listen_tcp_socket (<font class="keyword">const</font> <font class="keywordtype">char</font> *host,
00670 dbus_uint32_t port,
00671 <a class="code" href="structDBusError.html">DBusError</a> *error)
00672 {
00673 <font class="keywordtype">int</font> listen_fd;
00674 <font class="keyword">struct </font>sockaddr_in addr;
00675 <font class="keyword">struct </font>hostent *he;
00676 <font class="keyword">struct </font>in_addr *haddr;
00677
00678 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00679
00680 listen_fd = socket (AF_INET, SOCK_STREAM, 0);
00681
00682 <font class="keywordflow">if</font> (listen_fd < 0)
00683 {
00684 dbus_set_error (error, _dbus_error_from_errno (errno),
00685 <font class="stringliteral">"Failed to create socket \"%s:%d\": %s"</font>,
00686 host, port, _dbus_strerror (errno));
00687 <font class="keywordflow">return</font> -1;
00688 }
00689
00690 he = gethostbyname (host);
00691 <font class="keywordflow">if</font> (he == NULL)
00692 {
00693 dbus_set_error (error,
00694 _dbus_error_from_errno (errno),
00695 <font class="stringliteral">"Failed to lookup hostname: %s"</font>,
00696 host);
00697 <font class="keywordflow">return</font> -1;
00698 }
00699
00700 haddr = ((<font class="keyword">struct </font>in_addr *) (he->h_addr_list)[0]);
00701
00702 _DBUS_ZERO (addr);
00703 memcpy (&addr.sin_addr, haddr, sizeof (<font class="keyword">struct</font> in_addr));
00704 addr.sin_family = AF_INET;
00705 addr.sin_port = htons (port);
00706
00707 <font class="keywordflow">if</font> (bind (listen_fd, (<font class="keyword">struct</font> sockaddr*) &addr, <font class="keyword">sizeof</font> (<font class="keyword">struct</font> sockaddr)))
00708 {
00709 dbus_set_error (error, _dbus_error_from_errno (errno),
00710 <font class="stringliteral">"Failed to bind socket \"%s:%d\": %s"</font>,
00711 host, port, _dbus_strerror (errno));
00712 close (listen_fd);
00713 <font class="keywordflow">return</font> -1;
00714 }
00715
00716 <font class="keywordflow">if</font> (listen (listen_fd, 30 <font class="comment">/* backlog */</font>) < 0)
00717 {
00718 dbus_set_error (error, _dbus_error_from_errno (errno),
00719 <font class="stringliteral">"Failed to listen on socket \"%s:%d\": %s"</font>,
00720 host, port, _dbus_strerror (errno));
00721 close (listen_fd);
00722 <font class="keywordflow">return</font> -1;
00723 }
00724
00725 <font class="keywordflow">if</font> (!_dbus_set_fd_nonblocking (listen_fd, error))
00726 {
00727 close (listen_fd);
00728 <font class="keywordflow">return</font> -1;
00729 }
00730
00731 <font class="keywordflow">return</font> listen_fd;
00732 }
00733
00734 <font class="keyword">static</font> dbus_bool_t
00735 write_credentials_byte (<font class="keywordtype">int</font> server_fd,
00736 <a class="code" href="structDBusError.html">DBusError</a> *error)
00737 {
00738 <font class="keywordtype">int</font> bytes_written;
00739 <font class="keywordtype">char</font> buf[1] = { <font class="charliteral">'\0'</font> };
00740
00741 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00742
00743 again:
00744
00745 bytes_written = write (server_fd, buf, 1);
00746
00747 <font class="keywordflow">if</font> (bytes_written < 0 && errno == EINTR)
00748 <font class="keywordflow">goto</font> again;
00749
00750 <font class="keywordflow">if</font> (bytes_written < 0)
00751 {
00752 dbus_set_error (error, _dbus_error_from_errno (errno),
00753 <font class="stringliteral">"Failed to write credentials byte: %s"</font>,
00754 _dbus_strerror (errno));
00755 <font class="keywordflow">return</font> FALSE;
00756 }
00757 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (bytes_written == 0)
00758 {
00759 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
00760 <font class="stringliteral">"wrote zero bytes writing credentials byte"</font>);
00761 <font class="keywordflow">return</font> FALSE;
00762 }
00763 <font class="keywordflow">else</font>
00764 {
00765 _dbus_assert (bytes_written == 1);
00766 _dbus_verbose (<font class="stringliteral">"wrote credentials byte\n"</font>);
00767 <font class="keywordflow">return</font> TRUE;
00768 }
00769 }
00770
00789 dbus_bool_t
<a name="l00790"></a><a class="code" href="group__DBusInternalsUtils.html#a55">00790</a> _dbus_read_credentials_unix_socket (<font class="keywordtype">int</font> client_fd,
00791 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials,
00792 <a class="code" href="structDBusError.html">DBusError</a> *error)
00793 {
00794 <font class="keyword">struct </font>msghdr msg;
00795 <font class="keyword">struct </font>iovec iov;
00796 <font class="keywordtype">char</font> buf;
00797
00798 <font class="preprocessor">#ifdef HAVE_CMSGCRED </font>
00799 <font class="preprocessor"></font> <font class="keywordtype">char</font> cmsgmem[CMSG_SPACE (<font class="keyword">sizeof</font> (<font class="keyword">struct</font> cmsgcred))];
00800 <font class="keyword">struct </font>cmsghdr *cmsg = (<font class="keyword">struct </font>cmsghdr *) cmsgmem;
00801 <font class="preprocessor">#endif</font>
00802 <font class="preprocessor"></font>
00803 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00804
00805 <font class="comment">/* The POSIX spec certainly doesn't promise this, but</font>
00806 <font class="comment"> * we need these assertions to fail as soon as we're wrong about</font>
00807 <font class="comment"> * it so we can do the porting fixups</font>
00808 <font class="comment"> */</font>
00809 _dbus_assert (<font class="keyword">sizeof</font> (pid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a>));
00810 _dbus_assert (<font class="keyword">sizeof</font> (uid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a>));
00811 _dbus_assert (<font class="keyword">sizeof</font> (gid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a>));
00812
00813 _dbus_credentials_clear (credentials);
00814
00815 <font class="preprocessor">#if defined(LOCAL_CREDS) && defined(HAVE_CMSGCRED)</font>
00816 <font class="preprocessor"></font> <font class="comment">/* Set the socket to receive credentials on the next message */</font>
00817 {
00818 <font class="keywordtype">int</font> on = 1;
00819 <font class="keywordflow">if</font> (setsockopt (client_fd, 0, LOCAL_CREDS, &on, <font class="keyword">sizeof</font> (on)) < 0)
00820 {
00821 _dbus_verbose (<font class="stringliteral">"Unable to set LOCAL_CREDS socket option\n"</font>);
00822 <font class="keywordflow">return</font> FALSE;
00823 }
00824 }
00825 <font class="preprocessor">#endif</font>
00826 <font class="preprocessor"></font>
00827 iov.iov_base = &buf;
00828 iov.iov_len = 1;
00829
00830 memset (&msg, 0, <font class="keyword">sizeof</font> (msg));
00831 msg.msg_iov = &iov;
00832 msg.msg_iovlen = 1;
00833
00834 <font class="preprocessor">#ifdef HAVE_CMSGCRED</font>
00835 <font class="preprocessor"></font> memset (cmsgmem, 0, <font class="keyword">sizeof</font> (cmsgmem));
00836 msg.msg_control = cmsgmem;
00837 msg.msg_controllen = <font class="keyword">sizeof</font> (cmsgmem);
00838 <font class="preprocessor">#endif</font>
00839 <font class="preprocessor"></font>
00840 again:
00841 <font class="keywordflow">if</font> (recvmsg (client_fd, &msg, 0) < 0)
00842 {
00843 <font class="keywordflow">if</font> (errno == EINTR)
00844 <font class="keywordflow">goto</font> again;
00845
00846 dbus_set_error (error, _dbus_error_from_errno (errno),
00847 <font class="stringliteral">"Failed to read credentials byte: %s"</font>,
00848 _dbus_strerror (errno));
00849 <font class="keywordflow">return</font> FALSE;
00850 }
00851
00852 <font class="keywordflow">if</font> (buf != <font class="charliteral">'\0'</font>)
00853 {
00854 dbus_set_error (error, DBUS_ERROR_FAILED,
00855 <font class="stringliteral">"Credentials byte was not nul"</font>);
00856 <font class="keywordflow">return</font> FALSE;
00857 }
00858
00859 <font class="preprocessor">#ifdef HAVE_CMSGCRED</font>
00860 <font class="preprocessor"></font> <font class="keywordflow">if</font> (cmsg->cmsg_len < <font class="keyword">sizeof</font> (cmsgmem) || cmsg->cmsg_type != SCM_CREDS)
00861 {
00862 dbus_set_error (error, DBUS_ERROR_FAILED);
00863 _dbus_verbose (<font class="stringliteral">"Message from recvmsg() was not SCM_CREDS\n"</font>);
00864 <font class="keywordflow">return</font> FALSE;
00865 }
00866 <font class="preprocessor">#endif</font>
00867 <font class="preprocessor"></font>
00868 _dbus_verbose (<font class="stringliteral">"read credentials byte\n"</font>);
00869
00870 {
00871 <font class="preprocessor">#ifdef SO_PEERCRED</font>
00872 <font class="preprocessor"></font> <font class="keyword">struct </font>ucred cr;
00873 <font class="keywordtype">int</font> cr_len = <font class="keyword">sizeof</font> (cr);
00874
00875 <font class="keywordflow">if</font> (getsockopt (client_fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) == 0 &&
00876 cr_len == <font class="keyword">sizeof</font> (cr))
00877 {
00878 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = cr.pid;
00879 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = cr.uid;
00880 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = cr.gid;
00881 }
00882 <font class="keywordflow">else</font>
00883 {
00884 _dbus_verbose (<font class="stringliteral">"Failed to getsockopt() credentials, returned len %d/%d: %s\n"</font>,
00885 cr_len, (<font class="keywordtype">int</font>) <font class="keyword">sizeof</font> (cr), _dbus_strerror (errno));
00886 }
00887 <font class="preprocessor">#elif defined(HAVE_CMSGCRED)</font>
00888 <font class="preprocessor"></font> <font class="keyword">struct </font>cmsgcred *cred;
00889
00890 cred = (<font class="keyword">struct </font>cmsgcred *) CMSG_DATA (cmsg);
00891
00892 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = cred->cmcred_pid;
00893 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = cred->cmcred_euid;
00894 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = cred->cmcred_groups[0];
00895 <font class="preprocessor">#else </font><font class="comment">/* !SO_PEERCRED && !HAVE_CMSGCRED */</font>
00896 _dbus_verbose (<font class="stringliteral">"Socket credentials not supported on this OS\n"</font>);
00897 <font class="preprocessor">#endif</font>
00898 <font class="preprocessor"></font> }
00899
00900 _dbus_verbose (<font class="stringliteral">"Credentials:"</font>
00901 <font class="stringliteral">" pid "</font>DBUS_PID_FORMAT
00902 <font class="stringliteral">" uid "</font>DBUS_UID_FORMAT
00903 <font class="stringliteral">" gid "</font>DBUS_GID_FORMAT<font class="stringliteral">"\n"</font>,
00904 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a>,
00905 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a>,
00906 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a>);
00907
00908 <font class="keywordflow">return</font> TRUE;
00909 }
00910
00928 dbus_bool_t
<a name="l00929"></a><a class="code" href="group__DBusInternalsUtils.html#a56">00929</a> _dbus_send_credentials_unix_socket (<font class="keywordtype">int</font> server_fd,
00930 <a class="code" href="structDBusError.html">DBusError</a> *error)
00931 {
00932 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00933
00934 <font class="keywordflow">if</font> (write_credentials_byte (server_fd, error))
00935 <font class="keywordflow">return</font> TRUE;
00936 <font class="keywordflow">else</font>
00937 <font class="keywordflow">return</font> FALSE;
00938 }
00939
00947 <font class="keywordtype">int</font>
<a name="l00948"></a><a class="code" href="group__DBusInternalsUtils.html#a57">00948</a> _dbus_accept (<font class="keywordtype">int</font> listen_fd)
00949 {
00950 <font class="keywordtype">int</font> client_fd;
00951 <font class="keyword">struct </font>sockaddr addr;
00952 socklen_t addrlen;
00953
00954 addrlen = <font class="keyword">sizeof</font> (addr);
00955
00956 retry:
00957 client_fd = accept (listen_fd, &addr, &addrlen);
00958
00959 <font class="keywordflow">if</font> (client_fd < 0)
00960 {
00961 <font class="keywordflow">if</font> (errno == EINTR)
00962 <font class="keywordflow">goto</font> retry;
00963 }
00964
00965 <font class="keywordflow">return</font> client_fd;
00966 }
00967
00982 dbus_bool_t
<a name="l00983"></a><a class="code" href="group__DBusString.html#a25">00983</a> _dbus_string_append_int (<a class="code" href="structDBusString.html">DBusString</a> *str,
00984 <font class="keywordtype">long</font> value)
00985 {
00986 <font class="comment">/* this calculation is from comp.lang.c faq */</font>
00987 <font class="preprocessor">#define MAX_LONG_LEN ((sizeof (long) * 8 + 2) / 3 + 1) </font><font class="comment">/* +1 for '-' */</font>
00988 <font class="keywordtype">int</font> orig_len;
00989 <font class="keywordtype">int</font> i;
00990 <font class="keywordtype">char</font> *buf;
00991
00992 orig_len = _dbus_string_get_length (str);
00993
00994 <font class="keywordflow">if</font> (!_dbus_string_lengthen (str, MAX_LONG_LEN))
00995 <font class="keywordflow">return</font> FALSE;
00996
00997 buf = _dbus_string_get_data_len (str, orig_len, MAX_LONG_LEN);
00998
00999 snprintf (buf, MAX_LONG_LEN, <font class="stringliteral">"%ld"</font>, value);
01000
01001 i = 0;
01002 <font class="keywordflow">while</font> (*buf)
01003 {
01004 ++buf;
01005 ++i;
01006 }
01007
01008 _dbus_string_shorten (str, MAX_LONG_LEN - i);
01009
01010 <font class="keywordflow">return</font> TRUE;
01011 }
01012
01020 dbus_bool_t
<a name="l01021"></a><a class="code" href="group__DBusString.html#a26">01021</a> _dbus_string_append_uint (<a class="code" href="structDBusString.html">DBusString</a> *str,
01022 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> value)
01023 {
01024 <font class="comment">/* this is wrong, but definitely on the high side. */</font>
01025 <font class="preprocessor">#define MAX_ULONG_LEN (MAX_LONG_LEN * 2)</font>
01026 <font class="preprocessor"></font> <font class="keywordtype">int</font> orig_len;
01027 <font class="keywordtype">int</font> i;
01028 <font class="keywordtype">char</font> *buf;
01029
01030 orig_len = _dbus_string_get_length (str);
01031
01032 <font class="keywordflow">if</font> (!_dbus_string_lengthen (str, MAX_ULONG_LEN))
01033 <font class="keywordflow">return</font> FALSE;
01034
01035 buf = _dbus_string_get_data_len (str, orig_len, MAX_ULONG_LEN);
01036
01037 snprintf (buf, MAX_ULONG_LEN, <font class="stringliteral">"%lu"</font>, value);
01038
01039 i = 0;
01040 <font class="keywordflow">while</font> (*buf)
01041 {
01042 ++buf;
01043 ++i;
01044 }
01045
01046 _dbus_string_shorten (str, MAX_ULONG_LEN - i);
01047
01048 <font class="keywordflow">return</font> TRUE;
01049 }
01050
01058 dbus_bool_t
<a name="l01059"></a><a class="code" href="group__DBusString.html#a27">01059</a> _dbus_string_append_double (<a class="code" href="structDBusString.html">DBusString</a> *str,
01060 <font class="keywordtype">double</font> value)
01061 {
01062 <font class="preprocessor">#define MAX_DOUBLE_LEN 64 </font><font class="comment">/* this is completely made up :-/ */</font>
01063 <font class="keywordtype">int</font> orig_len;
01064 <font class="keywordtype">char</font> *buf;
01065 <font class="keywordtype">int</font> i;
01066
01067 orig_len = _dbus_string_get_length (str);
01068
01069 <font class="keywordflow">if</font> (!_dbus_string_lengthen (str, MAX_DOUBLE_LEN))
01070 <font class="keywordflow">return</font> FALSE;
01071
01072 buf = _dbus_string_get_data_len (str, orig_len, MAX_DOUBLE_LEN);
01073
01074 snprintf (buf, MAX_LONG_LEN, <font class="stringliteral">"%g"</font>, value);
01075
01076 i = 0;
01077 <font class="keywordflow">while</font> (*buf)
01078 {
01079 ++buf;
01080 ++i;
01081 }
01082
01083 _dbus_string_shorten (str, MAX_DOUBLE_LEN - i);
01084
01085 <font class="keywordflow">return</font> TRUE;
01086 }
01087
01100 dbus_bool_t
<a name="l01101"></a><a class="code" href="group__DBusString.html#a28">01101</a> _dbus_string_parse_int (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *str,
01102 <font class="keywordtype">int</font> start,
01103 <font class="keywordtype">long</font> *value_return,
01104 <font class="keywordtype">int</font> *end_return)
01105 {
01106 <font class="keywordtype">long</font> v;
01107 <font class="keyword">const</font> <font class="keywordtype">char</font> *p;
01108 <font class="keywordtype">char</font> *end;
01109
01110 p = _dbus_string_get_const_data_len (str, start,
01111 _dbus_string_get_length (str) - start);
01112
01113 end = NULL;
01114 errno = 0;
01115 v = strtol (p, &end, 0);
01116 <font class="keywordflow">if</font> (end == NULL || end == p || errno != 0)
01117 <font class="keywordflow">return</font> FALSE;
01118
01119 <font class="keywordflow">if</font> (value_return)
01120 *value_return = v;
01121 <font class="keywordflow">if</font> (end_return)
01122 *end_return = start + (end - p);
01123
01124 <font class="keywordflow">return</font> TRUE;
01125 }
01126
01127 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
01128 <font class="preprocessor"></font><font class="comment">/* Not currently used, so only built when tests are enabled */</font>
01141 dbus_bool_t
<a name="l01142"></a><a class="code" href="group__DBusString.html#a29">01142</a> _dbus_string_parse_uint (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *str,
01143 <font class="keywordtype">int</font> start,
01144 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> *value_return,
01145 <font class="keywordtype">int</font> *end_return)
01146 {
01147 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> v;
01148 <font class="keyword">const</font> <font class="keywordtype">char</font> *p;
01149 <font class="keywordtype">char</font> *end;
01150
01151 p = _dbus_string_get_const_data_len (str, start,
01152 _dbus_string_get_length (str) - start);
01153
01154 end = NULL;
01155 errno = 0;
01156 v = strtoul (p, &end, 0);
01157 <font class="keywordflow">if</font> (end == NULL || end == p || errno != 0)
01158 <font class="keywordflow">return</font> FALSE;
01159
01160 <font class="keywordflow">if</font> (value_return)
01161 *value_return = v;
01162 <font class="keywordflow">if</font> (end_return)
01163 *end_return = start + (end - p);
01164
01165 <font class="keywordflow">return</font> TRUE;
01166 }
01167 <font class="preprocessor">#endif </font><font class="comment">/* DBUS_BUILD_TESTS */</font>
01168
01169 <font class="keyword">static</font> dbus_bool_t
01170 ascii_isspace (<font class="keywordtype">char</font> c)
01171 {
01172 <font class="keywordflow">return</font> (c == <font class="charliteral">' '</font> ||
01173 c == <font class="charliteral">'\f'</font> ||
01174 c == <font class="charliteral">'\n'</font> ||
01175 c == <font class="charliteral">'\r'</font> ||
01176 c == <font class="charliteral">'\t'</font> ||
01177 c == <font class="charliteral">'\v'</font>);
01178 }
01179
01180 <font class="keyword">static</font> dbus_bool_t
01181 ascii_isdigit (<font class="keywordtype">char</font> c)
01182 {
01183 <font class="keywordflow">return</font> c >= <font class="charliteral">'0'</font> && c <= <font class="charliteral">'9'</font>;
01184 }
01185
01186 <font class="keyword">static</font> dbus_bool_t
01187 ascii_isxdigit (<font class="keywordtype">char</font> c)
01188 {
01189 <font class="keywordflow">return</font> (ascii_isdigit (c) ||
01190 (c >= <font class="charliteral">'a'</font> && c <= <font class="charliteral">'f'</font>) ||
01191 (c >= <font class="charliteral">'A'</font> && c <= <font class="charliteral">'F'</font>));
01192 }
01193
01194
01195 <font class="comment">/* Calls strtod in a locale-independent fashion, by looking at</font>
01196 <font class="comment"> * the locale data and patching the decimal comma to a point.</font>
01197 <font class="comment"> *</font>
01198 <font class="comment"> * Relicensed from glib.</font>
01199 <font class="comment"> */</font>
01200 <font class="keyword">static</font> <font class="keywordtype">double</font>
01201 ascii_strtod (<font class="keyword">const</font> <font class="keywordtype">char</font> *nptr,
01202 <font class="keywordtype">char</font> **endptr)
01203 {
01204 <font class="keywordtype">char</font> *fail_pos;
01205 <font class="keywordtype">double</font> val;
01206 <font class="keyword">struct </font>lconv *locale_data;
01207 <font class="keyword">const</font> <font class="keywordtype">char</font> *decimal_point;
01208 <font class="keywordtype">int</font> decimal_point_len;
01209 <font class="keyword">const</font> <font class="keywordtype">char</font> *p, *decimal_point_pos;
01210 <font class="keyword">const</font> <font class="keywordtype">char</font> *end = NULL; <font class="comment">/* Silence gcc */</font>
01211
01212 fail_pos = NULL;
01213
01214 locale_data = localeconv ();
01215 decimal_point = locale_data->decimal_point;
01216 decimal_point_len = strlen (decimal_point);
01217
01218 _dbus_assert (decimal_point_len != 0);
01219
01220 decimal_point_pos = NULL;
01221 <font class="keywordflow">if</font> (decimal_point[0] != <font class="charliteral">'.'</font> ||
01222 decimal_point[1] != 0)
01223 {
01224 p = nptr;
01225 <font class="comment">/* Skip leading space */</font>
01226 <font class="keywordflow">while</font> (ascii_isspace (*p))
01227 p++;
01228
01229 <font class="comment">/* Skip leading optional sign */</font>
01230 <font class="keywordflow">if</font> (*p == <font class="charliteral">'+'</font> || *p == <font class="charliteral">'-'</font>)
01231 p++;
01232
01233 <font class="keywordflow">if</font> (p[0] == <font class="charliteral">'0'</font> &&
01234 (p[1] == <font class="charliteral">'x'</font> || p[1] == <font class="charliteral">'X'</font>))
01235 {
01236 p += 2;
01237 <font class="comment">/* HEX - find the (optional) decimal point */</font>
01238
01239 <font class="keywordflow">while</font> (ascii_isxdigit (*p))
01240 p++;
01241
01242 <font class="keywordflow">if</font> (*p == <font class="charliteral">'.'</font>)
01243 {
01244 decimal_point_pos = p++;
01245
01246 <font class="keywordflow">while</font> (ascii_isxdigit (*p))
01247 p++;
01248
01249 <font class="keywordflow">if</font> (*p == <font class="charliteral">'p'</font> || *p == <font class="charliteral">'P'</font>)
01250 p++;
01251 <font class="keywordflow">if</font> (*p == <font class="charliteral">'+'</font> || *p == <font class="charliteral">'-'</font>)
01252 p++;
01253 <font class="keywordflow">while</font> (ascii_isdigit (*p))
01254 p++;
01255 end = p;
01256 }
01257 }
01258 <font class="keywordflow">else</font>
01259 {
01260 <font class="keywordflow">while</font> (ascii_isdigit (*p))
01261 p++;
01262
01263 <font class="keywordflow">if</font> (*p == <font class="charliteral">'.'</font>)
01264 {
01265 decimal_point_pos = p++;
01266
01267 <font class="keywordflow">while</font> (ascii_isdigit (*p))
01268 p++;
01269
01270 <font class="keywordflow">if</font> (*p == <font class="charliteral">'e'</font> || *p == <font class="charliteral">'E'</font>)
01271 p++;
01272 <font class="keywordflow">if</font> (*p == <font class="charliteral">'+'</font> || *p == <font class="charliteral">'-'</font>)
01273 p++;
01274 <font class="keywordflow">while</font> (ascii_isdigit (*p))
01275 p++;
01276 end = p;
01277 }
01278 }
01279 <font class="comment">/* For the other cases, we need not convert the decimal point */</font>
01280 }
01281
01282 <font class="comment">/* Set errno to zero, so that we can distinguish zero results</font>
01283 <font class="comment"> and underflows */</font>
01284 errno = 0;
01285
01286 <font class="keywordflow">if</font> (decimal_point_pos)
01287 {
01288 <font class="keywordtype">char</font> *copy, *c;
01289
01290 <font class="comment">/* We need to convert the '.' to the locale specific decimal point */</font>
01291 copy = dbus_malloc (end - nptr + 1 + decimal_point_len);
01292
01293 c = copy;
01294 memcpy (c, nptr, decimal_point_pos - nptr);
01295 c += decimal_point_pos - nptr;
01296 memcpy (c, decimal_point, decimal_point_len);
01297 c += decimal_point_len;
01298 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
01299 c += end - (decimal_point_pos + 1);
01300 *c = 0;
01301
01302 val = strtod (copy, &fail_pos);
01303
01304 <font class="keywordflow">if</font> (fail_pos)
01305 {
01306 <font class="keywordflow">if</font> (fail_pos > decimal_point_pos)
01307 fail_pos = (<font class="keywordtype">char</font> *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
01308 <font class="keywordflow">else</font>
01309 fail_pos = (<font class="keywordtype">char</font> *)nptr + (fail_pos - copy);
01310 }
01311
01312 dbus_free (copy);
01313
01314 }
01315 <font class="keywordflow">else</font>
01316 val = strtod (nptr, &fail_pos);
01317
01318 <font class="keywordflow">if</font> (endptr)
01319 *endptr = fail_pos;
01320
01321 <font class="keywordflow">return</font> val;
01322 }
01323
01324
01337 dbus_bool_t
<a name="l01338"></a><a class="code" href="group__DBusString.html#a34">01338</a> _dbus_string_parse_double (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *str,
01339 <font class="keywordtype">int</font> start,
01340 <font class="keywordtype">double</font> *value_return,
01341 <font class="keywordtype">int</font> *end_return)
01342 {
01343 <font class="keywordtype">double</font> v;
01344 <font class="keyword">const</font> <font class="keywordtype">char</font> *p;
01345 <font class="keywordtype">char</font> *end;
01346
01347 p = _dbus_string_get_const_data_len (str, start,
01348 _dbus_string_get_length (str) - start);
01349
01350 end = NULL;
01351 errno = 0;
01352 v = ascii_strtod (p, &end);
01353 <font class="keywordflow">if</font> (end == NULL || end == p || errno != 0)
01354 <font class="keywordflow">return</font> FALSE;
01355
01356 <font class="keywordflow">if</font> (value_return)
01357 *value_return = v;
01358 <font class="keywordflow">if</font> (end_return)
01359 *end_return = start + (end - p);
01360
01361 <font class="keywordflow">return</font> TRUE;
01362 }
01363 <font class="comment">/* DBusString group */</font>
01365
01370 <font class="keyword">static</font> dbus_bool_t
01371 fill_user_info_from_passwd (<font class="keyword">struct</font> passwd *p,
01372 <a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info,
01373 <a class="code" href="structDBusError.html">DBusError</a> *error)
01374 {
01375 _dbus_assert (p->pw_name != NULL);
01376 _dbus_assert (p->pw_dir != NULL);
01377
01378 info-><a class="code" href="structDBusUserInfo.html#m0">uid</a> = p->pw_uid;
01379 info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a> = p->pw_gid;
01380 info-><a class="code" href="structDBusUserInfo.html#m4">username</a> = _dbus_strdup (p->pw_name);
01381 info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a> = _dbus_strdup (p->pw_dir);
01382
01383 <font class="keywordflow">if</font> (info-><a class="code" href="structDBusUserInfo.html#m4">username</a> == NULL ||
01384 info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a> == NULL)
01385 {
01386 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01387 <font class="keywordflow">return</font> FALSE;
01388 }
01389
01390 <font class="keywordflow">return</font> TRUE;
01391 }
01392
01393 <font class="keyword">static</font> dbus_bool_t
01394 fill_user_info (<a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info,
01395 dbus_uid_t uid,
01396 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
01397 <a class="code" href="structDBusError.html">DBusError</a> *error)
01398 {
01399 <font class="keyword">const</font> <font class="keywordtype">char</font> *username_c;
01400
01401 <font class="comment">/* exactly one of username/uid provided */</font>
01402 _dbus_assert (username != NULL || uid != DBUS_UID_UNSET);
01403 _dbus_assert (username == NULL || uid == DBUS_UID_UNSET);
01404
01405 info-><a class="code" href="structDBusUserInfo.html#m0">uid</a> = DBUS_UID_UNSET;
01406 info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a> = DBUS_GID_UNSET;
01407 info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a> = NULL;
01408 info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a> = 0;
01409 info-><a class="code" href="structDBusUserInfo.html#m4">username</a> = NULL;
01410 info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a> = NULL;
01411
01412 <font class="keywordflow">if</font> (username != NULL)
01413 username_c = _dbus_string_get_const_data (username);
01414 <font class="keywordflow">else</font>
01415 username_c = NULL;
01416
01417 <font class="comment">/* For now assuming that the getpwnam() and getpwuid() flavors</font>
01418 <font class="comment"> * are always symmetrical, if not we have to add more configure</font>
01419 <font class="comment"> * checks</font>
01420 <font class="comment"> */</font>
01421
01422 <font class="preprocessor">#if defined (HAVE_POSIX_GETPWNAME_R) || defined (HAVE_NONPOSIX_GETPWNAME_R)</font>
01423 <font class="preprocessor"></font> {
01424 <font class="keyword">struct </font>passwd *p;
01425 <font class="keywordtype">int</font> result;
01426 <font class="keywordtype">char</font> buf[1024];
01427 <font class="keyword">struct </font>passwd p_str;
01428
01429 p = NULL;
01430 <font class="preprocessor">#ifdef HAVE_POSIX_GETPWNAME_R</font>
01431 <font class="preprocessor"></font> <font class="keywordflow">if</font> (uid >= 0)
01432 result = getpwuid_r (uid, &p_str, buf, <font class="keyword">sizeof</font> (buf),
01433 &p);
01434 <font class="keywordflow">else</font>
01435 result = getpwnam_r (username_c, &p_str, buf, <font class="keyword">sizeof</font> (buf),
01436 &p);
01437 <font class="preprocessor">#else</font>
01438 <font class="preprocessor"></font> <font class="keywordflow">if</font> (uid != DBUS_UID_UNSET)
01439 p = getpwuid_r (uid, &p_str, buf, <font class="keyword">sizeof</font> (buf));
01440 <font class="keywordflow">else</font>
01441 p = getpwnam_r (username_c, &p_str, buf, <font class="keyword">sizeof</font> (buf));
01442 result = 0;
01443 <font class="preprocessor">#endif </font><font class="comment">/* !HAVE_POSIX_GETPWNAME_R */</font>
01444 <font class="keywordflow">if</font> (result == 0 && p == &p_str)
01445 {
01446 <font class="keywordflow">if</font> (!fill_user_info_from_passwd (p, info, error))
01447 <font class="keywordflow">return</font> FALSE;
01448 }
01449 <font class="keywordflow">else</font>
01450 {
01451 dbus_set_error (error, _dbus_error_from_errno (errno),
01452 <font class="stringliteral">"User \"%s\" unknown or no memory to allocate password entry\n"</font>,
01453 username_c ? username_c : <font class="stringliteral">"???"</font>);
01454 _dbus_verbose (<font class="stringliteral">"User %s unknown\n"</font>, username_c ? username_c : <font class="stringliteral">"???"</font>);
01455 <font class="keywordflow">return</font> FALSE;
01456 }
01457 }
01458 <font class="preprocessor">#else </font><font class="comment">/* ! HAVE_GETPWNAM_R */</font>
01459 {
01460 <font class="comment">/* I guess we're screwed on thread safety here */</font>
01461 <font class="keyword">struct </font>passwd *p;
01462
01463 <font class="keywordflow">if</font> (uid != DBUS_UID_UNSET)
01464 p = getpwuid (uid);
01465 <font class="keywordflow">else</font>
01466 p = getpwnam (username_c);
01467
01468 <font class="keywordflow">if</font> (p != NULL)
01469 {
01470 <font class="keywordflow">if</font> (!fill_user_info_from_passwd (p, info, error))
01471 <font class="keywordflow">return</font> FALSE;
01472 }
01473 <font class="keywordflow">else</font>
01474 {
01475 dbus_set_error (error, _dbus_error_from_errno (errno),
01476 <font class="stringliteral">"User \"%s\" unknown or no memory to allocate password entry\n"</font>,
01477 username_c ? username_c : <font class="stringliteral">"???"</font>);
01478 _dbus_verbose (<font class="stringliteral">"User %s unknown\n"</font>, username_c ? username_c : <font class="stringliteral">"???"</font>);
01479 <font class="keywordflow">return</font> FALSE;
01480 }
01481 }
01482 <font class="preprocessor">#endif </font><font class="comment">/* ! HAVE_GETPWNAM_R */</font>
01483
01484 <font class="comment">/* Fill this in so we can use it to get groups */</font>
01485 username_c = info-><a class="code" href="structDBusUserInfo.html#m4">username</a>;
01486
01487 <font class="preprocessor">#ifdef HAVE_GETGROUPLIST</font>
01488 <font class="preprocessor"></font> {
01489 gid_t *buf;
01490 <font class="keywordtype">int</font> buf_count;
01491 <font class="keywordtype">int</font> i;
01492
01493 buf_count = 17;
01494 buf = dbus_new (gid_t, buf_count);
01495 <font class="keywordflow">if</font> (buf == NULL)
01496 {
01497 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01498 <font class="keywordflow">goto</font> failed;
01499 }
01500
01501 <font class="keywordflow">if</font> (getgrouplist (username_c,
01502 info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>,
01503 buf, &buf_count) < 0)
01504 {
01505 gid_t *<font class="keyword">new</font> = dbus_realloc (buf, buf_count * <font class="keyword">sizeof</font> (buf[0]));
01506 <font class="keywordflow">if</font> (<font class="keyword">new</font> == NULL)
01507 {
01508 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01509 dbus_free (buf);
01510 <font class="keywordflow">goto</font> failed;
01511 }
01512
01513 buf = <font class="keyword">new</font>;
01514
01515 errno = 0;
01516 <font class="keywordflow">if</font> (getgrouplist (username_c, info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>, buf, &buf_count) < 0)
01517 {
01518 dbus_set_error (error,
01519 _dbus_error_from_errno (errno),
01520 <font class="stringliteral">"Failed to get groups for username \"%s\" primary GID "</font>
01521 DBUS_GID_FORMAT <font class="stringliteral">": %s\n"</font>,
01522 username_c, info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>,
01523 _dbus_strerror (errno));
01524 dbus_free (buf);
01525 <font class="keywordflow">goto</font> failed;
01526 }
01527 }
01528
01529 info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a> = dbus_new (dbus_gid_t, buf_count);
01530 <font class="keywordflow">if</font> (info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a> == NULL)
01531 {
01532 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01533 dbus_free (buf);
01534 <font class="keywordflow">goto</font> failed;
01535 }
01536
01537 <font class="keywordflow">for</font> (i = 0; i < buf_count; ++i)
01538 info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a>[i] = buf[i];
01539
01540 info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a> = buf_count;
01541
01542 dbus_free (buf);
01543 }
01544 <font class="preprocessor">#else </font><font class="comment">/* HAVE_GETGROUPLIST */</font>
01545 {
01546 <font class="comment">/* We just get the one group ID */</font>
01547 info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a> = dbus_new (dbus_gid_t, 1);
01548 <font class="keywordflow">if</font> (info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a> == NULL)
01549 {
01550 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01551 <font class="keywordflow">goto</font> out;
01552 }
01553
01554 info-><a class="code" href="structDBusUserInfo.html#m3">n_group_ids</a> = 1;
01555
01556 (info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a>)[0] = info-><a class="code" href="structDBusUserInfo.html#m1">primary_gid</a>;
01557 }
01558 <font class="preprocessor">#endif </font><font class="comment">/* HAVE_GETGROUPLIST */</font>
01559
01560 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01561
01562 <font class="keywordflow">return</font> TRUE;
01563
01564 failed:
01565 _DBUS_ASSERT_ERROR_IS_SET (error);
01566 _dbus_user_info_free (info);
01567 <font class="keywordflow">return</font> FALSE;
01568 }
01569
01578 dbus_bool_t
<a name="l01579"></a><a class="code" href="group__DBusInternalsUtils.html#a60">01579</a> _dbus_user_info_fill (<a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info,
01580 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username,
01581 <a class="code" href="structDBusError.html">DBusError</a> *error)
01582 {
01583 <font class="keywordflow">return</font> fill_user_info (info, DBUS_UID_UNSET,
01584 username, error);
01585 }
01586
01595 dbus_bool_t
<a name="l01596"></a><a class="code" href="group__DBusInternalsUtils.html#a61">01596</a> _dbus_user_info_fill_uid (<a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info,
01597 dbus_uid_t uid,
01598 <a class="code" href="structDBusError.html">DBusError</a> *error)
01599 {
01600 <font class="keywordflow">return</font> fill_user_info (info, uid,
01601 NULL, error);
01602 }
01603
01609 <font class="keywordtype">void</font>
<a name="l01610"></a><a class="code" href="group__DBusInternalsUtils.html#a62">01610</a> _dbus_user_info_free (<a class="code" href="structDBusUserInfo.html">DBusUserInfo</a> *info)
01611 {
01612 dbus_free (info-><a class="code" href="structDBusUserInfo.html#m2">group_ids</a>);
01613 dbus_free (info-><a class="code" href="structDBusUserInfo.html#m4">username</a>);
01614 dbus_free (info-><a class="code" href="structDBusUserInfo.html#m5">homedir</a>);
01615 }
01616
01617 <font class="keyword">static</font> dbus_bool_t
01618 fill_user_info_from_group (<font class="keyword">struct</font> group *g,
01619 <a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info,
01620 <a class="code" href="structDBusError.html">DBusError</a> *error)
01621 {
01622 _dbus_assert (g->gr_name != NULL);
01623
01624 info-><a class="code" href="structDBusGroupInfo.html#m0">gid</a> = g->gr_gid;
01625 info-><a class="code" href="structDBusGroupInfo.html#m1">groupname</a> = _dbus_strdup (g->gr_name);
01626
01627 <font class="comment">/* info->members = dbus_strdupv (g->gr_mem) */</font>
01628
01629 <font class="keywordflow">if</font> (info-><a class="code" href="structDBusGroupInfo.html#m1">groupname</a> == NULL)
01630 {
01631 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01632 <font class="keywordflow">return</font> FALSE;
01633 }
01634
01635 <font class="keywordflow">return</font> TRUE;
01636 }
01637
01638 <font class="keyword">static</font> dbus_bool_t
01639 fill_group_info (<a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info,
01640 dbus_gid_t gid,
01641 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *groupname,
01642 <a class="code" href="structDBusError.html">DBusError</a> *error)
01643 {
01644 <font class="keyword">const</font> <font class="keywordtype">char</font> *group_c_str;
01645
01646 _dbus_assert (groupname != NULL || gid != DBUS_GID_UNSET);
01647 _dbus_assert (groupname == NULL || gid == DBUS_GID_UNSET);
01648
01649 <font class="keywordflow">if</font> (groupname)
01650 group_c_str = _dbus_string_get_const_data (groupname);
01651 <font class="keywordflow">else</font>
01652 group_c_str = NULL;
01653
01654 <font class="comment">/* For now assuming that the getgrnam() and getgrgid() flavors</font>
01655 <font class="comment"> * always correspond to the pwnam flavors, if not we have</font>
01656 <font class="comment"> * to add more configure checks.</font>
01657 <font class="comment"> */</font>
01658
01659 <font class="preprocessor">#if defined (HAVE_POSIX_GETPWNAME_R) || defined (HAVE_NONPOSIX_GETPWNAME_R)</font>
01660 <font class="preprocessor"></font> {
01661 <font class="keyword">struct </font>group *g;
01662 <font class="keywordtype">int</font> result;
01663 <font class="keywordtype">char</font> buf[1024];
01664 <font class="keyword">struct </font>group g_str;
01665
01666 g = NULL;
01667 <font class="preprocessor">#ifdef HAVE_POSIX_GETPWNAME_R</font>
01668 <font class="preprocessor"></font>
01669 <font class="keywordflow">if</font> (group_c_str)
01670 result = getgrnam_r (group_c_str, &g_str, buf, <font class="keyword">sizeof</font> (buf),
01671 &g);
01672 <font class="keywordflow">else</font>
01673 result = getgrgid_r (gid, &g_str, buf, <font class="keyword">sizeof</font> (buf),
01674 &g);
01675 <font class="preprocessor">#else</font>
01676 <font class="preprocessor"></font> p = getgrnam_r (group_c_str, &g_str, buf, <font class="keyword">sizeof</font> (buf));
01677 result = 0;
01678 <font class="preprocessor">#endif </font><font class="comment">/* !HAVE_POSIX_GETPWNAME_R */</font>
01679 <font class="keywordflow">if</font> (result == 0 && g == &g_str)
01680 {
01681 <font class="keywordflow">return</font> fill_user_info_from_group (g, info, error);
01682 }
01683 <font class="keywordflow">else</font>
01684 {
01685 dbus_set_error (error, _dbus_error_from_errno (errno),
01686 <font class="stringliteral">"Group %s unknown or failed to look it up\n"</font>,
01687 group_c_str ? group_c_str : <font class="stringliteral">"???"</font>);
01688 <font class="keywordflow">return</font> FALSE;
01689 }
01690 }
01691 <font class="preprocessor">#else </font><font class="comment">/* ! HAVE_GETPWNAM_R */</font>
01692 {
01693 <font class="comment">/* I guess we're screwed on thread safety here */</font>
01694 <font class="keyword">struct </font>group *g;
01695
01696 g = getgrnam (group_c_str);
01697
01698 <font class="keywordflow">if</font> (g != NULL)
01699 {
01700 <font class="keywordflow">return</font> fill_user_info_from_group (g, info, error);
01701 }
01702 <font class="keywordflow">else</font>
01703 {
01704 dbus_set_error (error, _dbus_error_from_errno (errno),
01705 <font class="stringliteral">"Group %s unknown or failed to look it up\n"</font>,
01706 group_c_str ? group_c_str : <font class="stringliteral">"???"</font>);
01707 <font class="keywordflow">return</font> FALSE;
01708 }
01709 }
01710 <font class="preprocessor">#endif </font><font class="comment">/* ! HAVE_GETPWNAM_R */</font>
01711 }
01712
01722 dbus_bool_t
<a name="l01723"></a><a class="code" href="group__DBusInternalsUtils.html#a65">01723</a> _dbus_group_info_fill (<a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info,
01724 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *groupname,
01725 <a class="code" href="structDBusError.html">DBusError</a> *error)
01726 {
01727 <font class="keywordflow">return</font> fill_group_info (info, DBUS_GID_UNSET,
01728 groupname, error);
01729
01730 }
01731
01741 dbus_bool_t
<a name="l01742"></a><a class="code" href="group__DBusInternalsUtils.html#a66">01742</a> _dbus_group_info_fill_gid (<a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info,
01743 dbus_gid_t gid,
01744 <a class="code" href="structDBusError.html">DBusError</a> *error)
01745 {
01746 <font class="keywordflow">return</font> fill_group_info (info, gid, NULL, error);
01747 }
01748
01754 <font class="keywordtype">void</font>
<a name="l01755"></a><a class="code" href="group__DBusInternalsUtils.html#a67">01755</a> _dbus_group_info_free (<a class="code" href="structDBusGroupInfo.html">DBusGroupInfo</a> *info)
01756 {
01757 dbus_free (info-><a class="code" href="structDBusGroupInfo.html#m1">groupname</a>);
01758 }
01759
01766 <font class="keywordtype">void</font>
<a name="l01767"></a><a class="code" href="group__DBusInternalsUtils.html#a68">01767</a> _dbus_credentials_clear (<a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
01768 {
01769 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = DBUS_PID_UNSET;
01770 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = DBUS_UID_UNSET;
01771 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = DBUS_GID_UNSET;
01772 }
01773
01779 <font class="keywordtype">void</font>
<a name="l01780"></a><a class="code" href="group__DBusInternalsUtils.html#a69">01780</a> _dbus_credentials_from_current_process (<a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
01781 {
01782 <font class="comment">/* The POSIX spec certainly doesn't promise this, but</font>
01783 <font class="comment"> * we need these assertions to fail as soon as we're wrong about</font>
01784 <font class="comment"> * it so we can do the porting fixups</font>
01785 <font class="comment"> */</font>
01786 _dbus_assert (<font class="keyword">sizeof</font> (pid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a>));
01787 _dbus_assert (<font class="keyword">sizeof</font> (uid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a>));
01788 _dbus_assert (<font class="keyword">sizeof</font> (gid_t) <= <font class="keyword">sizeof</font> (credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a>));
01789
01790 credentials-><a class="code" href="structDBusCredentials.html#m0">pid</a> = getpid ();
01791 credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> = getuid ();
01792 credentials-><a class="code" href="structDBusCredentials.html#m2">gid</a> = getgid ();
01793 }
01794
01803 dbus_bool_t
<a name="l01804"></a><a class="code" href="group__DBusInternalsUtils.html#a70">01804</a> _dbus_credentials_match (<font class="keyword">const</font> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *expected_credentials,
01805 <font class="keyword">const</font> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *provided_credentials)
01806 {
01807 <font class="keywordflow">if</font> (provided_credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> == DBUS_UID_UNSET)
01808 <font class="keywordflow">return</font> FALSE;
01809 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (expected_credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> == DBUS_UID_UNSET)
01810 <font class="keywordflow">return</font> FALSE;
01811 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (provided_credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> == 0)
01812 <font class="keywordflow">return</font> TRUE;
01813 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (provided_credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a> == expected_credentials-><a class="code" href="structDBusCredentials.html#m1">uid</a>)
01814 <font class="keywordflow">return</font> TRUE;
01815 <font class="keywordflow">else</font>
01816 <font class="keywordflow">return</font> FALSE;
01817 }
01818
01823 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font>
<a name="l01824"></a><a class="code" href="group__DBusInternalsUtils.html#a71">01824</a> _dbus_getpid (<font class="keywordtype">void</font>)
01825 {
01826 <font class="keywordflow">return</font> getpid ();
01827 }
01828
01832 dbus_uid_t
<a name="l01833"></a><a class="code" href="group__DBusInternalsUtils.html#a72">01833</a> _dbus_getuid (<font class="keywordtype">void</font>)
01834 {
01835 <font class="keywordflow">return</font> getuid ();
01836 }
01837
01841 dbus_gid_t
<a name="l01842"></a><a class="code" href="group__DBusInternalsUtils.html#a73">01842</a> _dbus_getgid (<font class="keywordtype">void</font>)
01843 {
01844 <font class="keywordflow">return</font> getgid ();
01845 }
01846
01847 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
01848
01849 <font class="preprocessor">#ifdef DBUS_USE_ATOMIC_INT_486</font>
01850 <font class="preprocessor"></font><font class="comment">/* Taken from CVS version 1.7 of glibc's sysdeps/i386/i486/atomicity.h */</font>
01851 <font class="comment">/* Since the asm stuff here is gcc-specific we go ahead and use "inline" also */</font>
01852 <font class="keyword">static</font> <font class="keyword">inline</font> dbus_int32_t
01853 atomic_exchange_and_add (<a class="code" href="structDBusAtomic.html">DBusAtomic</a> *atomic,
01854 <font class="keyword">volatile</font> dbus_int32_t val)
01855 {
01856 <font class="keyword">register</font> dbus_int32_t result;
01857
01858 __asm__ __volatile__ (<font class="stringliteral">"lock; xaddl %0,%1"</font>
01859 : <font class="stringliteral">"=r"</font> (result), <font class="stringliteral">"=m"</font> (atomic-><a class="code" href="structDBusAtomic.html#m0">value</a>)
01860 : "0" (val), "m" (atomic->value));
01861 <font class="keywordflow">return</font> result;
01862 }
01863 <font class="preprocessor">#endif</font>
01864 <font class="preprocessor"></font>
01873 dbus_int32_t
<a name="l01874"></a><a class="code" href="group__DBusInternalsUtils.html#a75">01874</a> _dbus_atomic_inc (<a class="code" href="structDBusAtomic.html">DBusAtomic</a> *atomic)
01875 {
01876 <font class="preprocessor">#ifdef DBUS_USE_ATOMIC_INT_486</font>
01877 <font class="preprocessor"></font> <font class="keywordflow">return</font> atomic_exchange_and_add (atomic, 1);
01878 <font class="preprocessor">#else</font>
01879 <font class="preprocessor"></font> dbus_int32_t res;
01880 _DBUS_LOCK (atomic);
01881 res = atomic-><a class="code" href="structDBusAtomic.html#m0">value</a>;
01882 atomic-><a class="code" href="structDBusAtomic.html#m0">value</a> += 1;
01883 _DBUS_UNLOCK (atomic);
01884 <font class="keywordflow">return</font> res;
01885 <font class="preprocessor">#endif</font>
01886 <font class="preprocessor"></font>}
01887
01896 dbus_int32_t
<a name="l01897"></a><a class="code" href="group__DBusInternalsUtils.html#a76">01897</a> _dbus_atomic_dec (<a class="code" href="structDBusAtomic.html">DBusAtomic</a> *atomic)
01898 {
01899 <font class="preprocessor">#ifdef DBUS_USE_ATOMIC_INT_486</font>
01900 <font class="preprocessor"></font> <font class="keywordflow">return</font> atomic_exchange_and_add (atomic, -1);
01901 <font class="preprocessor">#else</font>
01902 <font class="preprocessor"></font> dbus_int32_t res;
01903
01904 _DBUS_LOCK (atomic);
01905 res = atomic-><a class="code" href="structDBusAtomic.html#m0">value</a>;
01906 atomic-><a class="code" href="structDBusAtomic.html#m0">value</a> -= 1;
01907 _DBUS_UNLOCK (atomic);
01908 <font class="keywordflow">return</font> res;
01909 <font class="preprocessor">#endif</font>
01910 <font class="preprocessor"></font>}
01911
01920 <font class="keywordtype">int</font>
<a name="l01921"></a><a class="code" href="group__DBusInternalsUtils.html#a77">01921</a> _dbus_poll (<a class="code" href="structDBusPollFD.html">DBusPollFD</a> *fds,
01922 <font class="keywordtype">int</font> n_fds,
01923 <font class="keywordtype">int</font> timeout_milliseconds)
01924 {
01925 <font class="preprocessor">#ifdef HAVE_POLL</font>
01926 <font class="preprocessor"></font> <font class="comment">/* This big thing is a constant expression and should get optimized</font>
01927 <font class="comment"> * out of existence. So it's more robust than a configure check at</font>
01928 <font class="comment"> * no cost.</font>
01929 <font class="comment"> */</font>
01930 <font class="keywordflow">if</font> (_DBUS_POLLIN == POLLIN &&
01931 _DBUS_POLLPRI == POLLPRI &&
01932 _DBUS_POLLOUT == POLLOUT &&
01933 _DBUS_POLLERR == POLLERR &&
01934 _DBUS_POLLHUP == POLLHUP &&
01935 _DBUS_POLLNVAL == POLLNVAL &&
01936 <font class="keyword">sizeof</font> (DBusPollFD) == <font class="keyword">sizeof</font> (<font class="keyword">struct </font>pollfd) &&
01937 _DBUS_STRUCT_OFFSET (<a class="code" href="structDBusPollFD.html">DBusPollFD</a>, fd) ==
01938 _DBUS_STRUCT_OFFSET (<font class="keyword">struct</font> pollfd, fd) &&
01939 _DBUS_STRUCT_OFFSET (<a class="code" href="structDBusPollFD.html">DBusPollFD</a>, events) ==
01940 _DBUS_STRUCT_OFFSET (<font class="keyword">struct</font> pollfd, events) &&
01941 _DBUS_STRUCT_OFFSET (<a class="code" href="structDBusPollFD.html">DBusPollFD</a>, revents) ==
01942 _DBUS_STRUCT_OFFSET (<font class="keyword">struct</font> pollfd, revents))
01943 {
01944 <font class="keywordflow">return</font> poll ((<font class="keyword">struct</font> pollfd*) fds,
01945 n_fds,
01946 timeout_milliseconds);
01947 }
01948 <font class="keywordflow">else</font>
01949 {
01950 <font class="comment">/* We have to convert the DBusPollFD to an array of</font>
01951 <font class="comment"> * struct pollfd, poll, and convert back.</font>
01952 <font class="comment"> */</font>
01953 _dbus_warn (<font class="stringliteral">"didn't implement poll() properly for this system yet\n"</font>);
01954 <font class="keywordflow">return</font> -1;
01955 }
01956 <font class="preprocessor">#else </font><font class="comment">/* ! HAVE_POLL */</font>
01957
01958 fd_set read_set, write_set, err_set;
01959 <font class="keywordtype">int</font> max_fd = 0;
01960 <font class="keywordtype">int</font> i;
01961 <font class="keyword">struct </font>timeval tv;
01962 <font class="keywordtype">int</font> ready;
01963
01964 FD_ZERO (&read_set);
01965 FD_ZERO (&write_set);
01966 FD_ZERO (&err_set);
01967
01968 <font class="keywordflow">for</font> (i = 0; i < n_fds; i++)
01969 {
01970 <a class="code" href="structDBusPollFD.html">DBusPollFD</a> f = fds[i];
01971
01972 <font class="keywordflow">if</font> (f.<a class="code" href="structDBusPollFD.html#m1">events</a> & _DBUS_POLLIN)
01973 FD_SET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &read_set);
01974
01975 <font class="keywordflow">if</font> (f.<a class="code" href="structDBusPollFD.html#m1">events</a> & _DBUS_POLLOUT)
01976 FD_SET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &write_set);
01977
01978 FD_SET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &err_set);
01979
01980 max_fd = MAX (max_fd, f.<a class="code" href="structDBusPollFD.html#m0">fd</a>);
01981 }
01982
01983 tv.tv_sec = timeout_milliseconds / 1000;
01984 tv.tv_usec = (timeout_milliseconds % 1000) * 1000;
01985
01986 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
01987
01988 <font class="keywordflow">if</font> (ready > 0)
01989 {
01990 <font class="keywordflow">for</font> (i = 0; i < n_fds; i++)
01991 {
01992 <a class="code" href="structDBusPollFD.html">DBusPollFD</a> f = fds[i];
01993
01994 f.<a class="code" href="structDBusPollFD.html#m2">revents</a> = 0;
01995
01996 <font class="keywordflow">if</font> (FD_ISSET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &read_set))
01997 f.<a class="code" href="structDBusPollFD.html#m2">revents</a> |= _DBUS_POLLIN;
01998
01999 <font class="keywordflow">if</font> (FD_ISSET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &write_set))
02000 f.<a class="code" href="structDBusPollFD.html#m2">revents</a> |= _DBUS_POLLOUT;
02001
02002 <font class="keywordflow">if</font> (FD_ISSET (f.<a class="code" href="structDBusPollFD.html#m0">fd</a>, &err_set))
02003 f.<a class="code" href="structDBusPollFD.html#m2">revents</a> |= _DBUS_POLLERR;
02004 }
02005 }
02006
02007 <font class="keywordflow">return</font> ready;
02008 <font class="preprocessor">#endif</font>
02009 <font class="preprocessor"></font>}
02010
<a name="l02012"></a><a class="code" href="group__DBusInternalsUtils.html#a148">02012</a> <font class="preprocessor">#define NANOSECONDS_PER_SECOND 1000000000</font>
02013 <font class="preprocessor"></font>
<a name="l02014"></a><a class="code" href="group__DBusInternalsUtils.html#a149">02014</a> <font class="preprocessor">#define MICROSECONDS_PER_SECOND 1000000</font>
02015 <font class="preprocessor"></font>
<a name="l02016"></a><a class="code" href="group__DBusInternalsUtils.html#a150">02016</a> <font class="preprocessor">#define MILLISECONDS_PER_SECOND 1000</font>
02017 <font class="preprocessor"></font>
<a name="l02018"></a><a class="code" href="group__DBusInternalsUtils.html#a151">02018</a> <font class="preprocessor">#define NANOSECONDS_PER_MILLISECOND 1000000</font>
02019 <font class="preprocessor"></font>
<a name="l02020"></a><a class="code" href="group__DBusInternalsUtils.html#a152">02020</a> <font class="preprocessor">#define MICROSECONDS_PER_MILLISECOND 1000</font>
02021 <font class="preprocessor"></font>
02026 <font class="keywordtype">void</font>
<a name="l02027"></a><a class="code" href="group__DBusInternalsUtils.html#a78">02027</a> _dbus_sleep_milliseconds (<font class="keywordtype">int</font> milliseconds)
02028 {
02029 <font class="preprocessor">#ifdef HAVE_NANOSLEEP</font>
02030 <font class="preprocessor"></font> <font class="keyword">struct </font>timespec req;
02031 <font class="keyword">struct </font>timespec rem;
02032
02033 req.tv_sec = milliseconds / MILLISECONDS_PER_SECOND;
02034 req.tv_nsec = (milliseconds % MILLISECONDS_PER_SECOND) * NANOSECONDS_PER_MILLISECOND;
02035 rem.tv_sec = 0;
02036 rem.tv_nsec = 0;
02037
02038 <font class="keywordflow">while</font> (nanosleep (&req, &rem) < 0 && errno == EINTR)
02039 req = rem;
02040 <font class="preprocessor">#elif defined (HAVE_USLEEP)</font>
02041 <font class="preprocessor"></font> usleep (milliseconds * MICROSECONDS_PER_MILLISECOND);
02042 <font class="preprocessor">#else </font><font class="comment">/* ! HAVE_USLEEP */</font>
02043 sleep (MAX (milliseconds / 1000, 1));
02044 <font class="preprocessor">#endif</font>
02045 <font class="preprocessor"></font>}
02046
02053 <font class="keywordtype">void</font>
<a name="l02054"></a><a class="code" href="group__DBusInternalsUtils.html#a79">02054</a> _dbus_get_current_time (<font class="keywordtype">long</font> *tv_sec,
02055 <font class="keywordtype">long</font> *tv_usec)
02056 {
02057 <font class="keyword">struct </font>timeval t;
02058
02059 gettimeofday (&t, NULL);
02060
02061 <font class="keywordflow">if</font> (tv_sec)
02062 *tv_sec = t.tv_sec;
02063 <font class="keywordflow">if</font> (tv_usec)
02064 *tv_usec = t.tv_usec;
02065 }
02066
02077 dbus_bool_t
<a name="l02078"></a><a class="code" href="group__DBusInternalsUtils.html#a80">02078</a> _dbus_file_get_contents (<a class="code" href="structDBusString.html">DBusString</a> *str,
02079 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02080 <a class="code" href="structDBusError.html">DBusError</a> *error)
02081 {
02082 <font class="keywordtype">int</font> fd;
02083 <font class="keyword">struct </font>stat sb;
02084 <font class="keywordtype">int</font> orig_len;
02085 <font class="keywordtype">int</font> total;
02086 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02087
02088 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02089
02090 filename_c = _dbus_string_get_const_data (filename);
02091
02092 <font class="comment">/* O_BINARY useful on Cygwin */</font>
02093 fd = open (filename_c, O_RDONLY | O_BINARY);
02094 <font class="keywordflow">if</font> (fd < 0)
02095 {
02096 dbus_set_error (error, _dbus_error_from_errno (errno),
02097 <font class="stringliteral">"Failed to open \"%s\": %s"</font>,
02098 filename_c,
02099 _dbus_strerror (errno));
02100 <font class="keywordflow">return</font> FALSE;
02101 }
02102
02103 <font class="keywordflow">if</font> (fstat (fd, &sb) < 0)
02104 {
02105 dbus_set_error (error, _dbus_error_from_errno (errno),
02106 <font class="stringliteral">"Failed to stat \"%s\": %s"</font>,
02107 filename_c,
02108 _dbus_strerror (errno));
02109
02110 _dbus_verbose (<font class="stringliteral">"fstat() failed: %s"</font>,
02111 _dbus_strerror (errno));
02112
02113 close (fd);
02114
02115 <font class="keywordflow">return</font> FALSE;
02116 }
02117
02118 <font class="keywordflow">if</font> (sb.st_size > _DBUS_ONE_MEGABYTE)
02119 {
02120 dbus_set_error (error, DBUS_ERROR_FAILED,
02121 <font class="stringliteral">"File size %lu of \"%s\" is too large."</font>,
02122 filename_c, (<font class="keywordtype">unsigned</font> <font class="keywordtype">long</font>) sb.st_size);
02123 close (fd);
02124 <font class="keywordflow">return</font> FALSE;
02125 }
02126
02127 total = 0;
02128 orig_len = _dbus_string_get_length (str);
02129 <font class="keywordflow">if</font> (sb.st_size > 0 && S_ISREG (sb.st_mode))
02130 {
02131 <font class="keywordtype">int</font> bytes_read;
02132
02133 <font class="keywordflow">while</font> (total < (int) sb.st_size)
02134 {
02135 bytes_read = _dbus_read (fd, str,
02136 sb.st_size - total);
02137 <font class="keywordflow">if</font> (bytes_read <= 0)
02138 {
02139 dbus_set_error (error, _dbus_error_from_errno (errno),
02140 <font class="stringliteral">"Error reading \"%s\": %s"</font>,
02141 filename_c,
02142 _dbus_strerror (errno));
02143
02144 _dbus_verbose (<font class="stringliteral">"read() failed: %s"</font>,
02145 _dbus_strerror (errno));
02146
02147 close (fd);
02148 _dbus_string_set_length (str, orig_len);
02149 <font class="keywordflow">return</font> FALSE;
02150 }
02151 <font class="keywordflow">else</font>
02152 total += bytes_read;
02153 }
02154
02155 close (fd);
02156 <font class="keywordflow">return</font> TRUE;
02157 }
02158 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (sb.st_size != 0)
02159 {
02160 _dbus_verbose (<font class="stringliteral">"Can only open regular files at the moment.\n"</font>);
02161 dbus_set_error (error, DBUS_ERROR_FAILED,
02162 <font class="stringliteral">"\"%s\" is not a regular file"</font>,
02163 filename_c);
02164 close (fd);
02165 <font class="keywordflow">return</font> FALSE;
02166 }
02167 <font class="keywordflow">else</font>
02168 {
02169 close (fd);
02170 <font class="keywordflow">return</font> TRUE;
02171 }
02172 }
02173
02183 dbus_bool_t
<a name="l02184"></a><a class="code" href="group__DBusInternalsUtils.html#a81">02184</a> _dbus_string_save_to_file (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *str,
02185 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02186 <a class="code" href="structDBusError.html">DBusError</a> *error)
02187 {
02188 <font class="keywordtype">int</font> fd;
02189 <font class="keywordtype">int</font> bytes_to_write;
02190 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02191 <a class="code" href="structDBusString.html">DBusString</a> tmp_filename;
02192 <font class="keyword">const</font> <font class="keywordtype">char</font> *tmp_filename_c;
02193 <font class="keywordtype">int</font> total;
02194 dbus_bool_t need_unlink;
02195 dbus_bool_t retval;
02196
02197 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02198
02199 fd = -1;
02200 retval = FALSE;
02201 need_unlink = FALSE;
02202
02203 <font class="keywordflow">if</font> (!_dbus_string_init (&tmp_filename))
02204 {
02205 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
02206 <font class="keywordflow">return</font> FALSE;
02207 }
02208
02209 <font class="keywordflow">if</font> (!_dbus_string_copy (filename, 0, &tmp_filename, 0))
02210 {
02211 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
02212 _dbus_string_free (&tmp_filename);
02213 <font class="keywordflow">return</font> FALSE;
02214 }
02215
02216 <font class="keywordflow">if</font> (!_dbus_string_append (&tmp_filename, <font class="stringliteral">"."</font>))
02217 {
02218 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
02219 _dbus_string_free (&tmp_filename);
02220 <font class="keywordflow">return</font> FALSE;
02221 }
02222
02223 <font class="preprocessor">#define N_TMP_FILENAME_RANDOM_BYTES 8</font>
02224 <font class="preprocessor"></font> <font class="keywordflow">if</font> (!_dbus_generate_random_ascii (&tmp_filename, N_TMP_FILENAME_RANDOM_BYTES))
02225 {
02226 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
02227 _dbus_string_free (&tmp_filename);
02228 <font class="keywordflow">return</font> FALSE;
02229 }
02230
02231 filename_c = _dbus_string_get_const_data (filename);
02232 tmp_filename_c = _dbus_string_get_const_data (&tmp_filename);
02233
02234 fd = open (tmp_filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
02235 0600);
02236 <font class="keywordflow">if</font> (fd < 0)
02237 {
02238 dbus_set_error (error, _dbus_error_from_errno (errno),
02239 <font class="stringliteral">"Could not create %s: %s"</font>, tmp_filename_c,
02240 _dbus_strerror (errno));
02241 <font class="keywordflow">goto</font> out;
02242 }
02243
02244 need_unlink = TRUE;
02245
02246 total = 0;
02247 bytes_to_write = _dbus_string_get_length (str);
02248
02249 <font class="keywordflow">while</font> (total < bytes_to_write)
02250 {
02251 <font class="keywordtype">int</font> bytes_written;
02252
02253 bytes_written = _dbus_write (fd, str, total,
02254 bytes_to_write - total);
02255
02256 <font class="keywordflow">if</font> (bytes_written <= 0)
02257 {
02258 dbus_set_error (error, _dbus_error_from_errno (errno),
02259 <font class="stringliteral">"Could not write to %s: %s"</font>, tmp_filename_c,
02260 _dbus_strerror (errno));
02261
02262 <font class="keywordflow">goto</font> out;
02263 }
02264
02265 total += bytes_written;
02266 }
02267
02268 <font class="keywordflow">if</font> (close (fd) < 0)
02269 {
02270 dbus_set_error (error, _dbus_error_from_errno (errno),
02271 <font class="stringliteral">"Could not close file %s: %s"</font>,
02272 tmp_filename_c, _dbus_strerror (errno));
02273
02274 <font class="keywordflow">goto</font> out;
02275 }
02276
02277 fd = -1;
02278
02279 <font class="keywordflow">if</font> (rename (tmp_filename_c, filename_c) < 0)
02280 {
02281 dbus_set_error (error, _dbus_error_from_errno (errno),
02282 <font class="stringliteral">"Could not rename %s to %s: %s"</font>,
02283 tmp_filename_c, filename_c,
02284 _dbus_strerror (errno));
02285
02286 <font class="keywordflow">goto</font> out;
02287 }
02288
02289 need_unlink = FALSE;
02290
02291 retval = TRUE;
02292
02293 out:
02294 <font class="comment">/* close first, then unlink, to prevent ".nfs34234235" garbage</font>
02295 <font class="comment"> * files</font>
02296 <font class="comment"> */</font>
02297
02298 <font class="keywordflow">if</font> (fd >= 0)
02299 close (fd);
02300
02301 <font class="keywordflow">if</font> (need_unlink && unlink (tmp_filename_c) < 0)
02302 _dbus_verbose (<font class="stringliteral">"Failed to unlink temp file %s: %s\n"</font>,
02303 tmp_filename_c, _dbus_strerror (errno));
02304
02305 _dbus_string_free (&tmp_filename);
02306
02307 <font class="keywordflow">if</font> (!retval)
02308 _DBUS_ASSERT_ERROR_IS_SET (error);
02309
02310 <font class="keywordflow">return</font> retval;
02311 }
02312
02319 dbus_bool_t
<a name="l02320"></a><a class="code" href="group__DBusInternalsUtils.html#a82">02320</a> _dbus_create_file_exclusively (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02321 <a class="code" href="structDBusError.html">DBusError</a> *error)
02322 {
02323 <font class="keywordtype">int</font> fd;
02324 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02325
02326 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02327
02328 filename_c = _dbus_string_get_const_data (filename);
02329
02330 fd = open (filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
02331 0600);
02332 <font class="keywordflow">if</font> (fd < 0)
02333 {
02334 dbus_set_error (error,
02335 DBUS_ERROR_FAILED,
02336 <font class="stringliteral">"Could not create file %s: %s\n"</font>,
02337 filename_c,
02338 _dbus_strerror (errno));
02339 <font class="keywordflow">return</font> FALSE;
02340 }
02341
02342 <font class="keywordflow">if</font> (close (fd) < 0)
02343 {
02344 dbus_set_error (error,
02345 DBUS_ERROR_FAILED,
02346 <font class="stringliteral">"Could not close file %s: %s\n"</font>,
02347 filename_c,
02348 _dbus_strerror (errno));
02349 <font class="keywordflow">return</font> FALSE;
02350 }
02351
02352 <font class="keywordflow">return</font> TRUE;
02353 }
02354
02363 dbus_bool_t
<a name="l02364"></a><a class="code" href="group__DBusInternalsUtils.html#a83">02364</a> _dbus_delete_file (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02365 <a class="code" href="structDBusError.html">DBusError</a> *error)
02366 {
02367 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02368
02369 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02370
02371 filename_c = _dbus_string_get_const_data (filename);
02372
02373 <font class="keywordflow">if</font> (unlink (filename_c) < 0)
02374 {
02375 dbus_set_error (error, DBUS_ERROR_FAILED,
02376 <font class="stringliteral">"Failed to delete file %s: %s\n"</font>,
02377 filename_c, _dbus_strerror (errno));
02378 <font class="keywordflow">return</font> FALSE;
02379 }
02380 <font class="keywordflow">else</font>
02381 <font class="keywordflow">return</font> TRUE;
02382 }
02383
02392 dbus_bool_t
<a name="l02393"></a><a class="code" href="group__DBusInternalsUtils.html#a84">02393</a> _dbus_create_directory (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02394 <a class="code" href="structDBusError.html">DBusError</a> *error)
02395 {
02396 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02397
02398 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02399
02400 filename_c = _dbus_string_get_const_data (filename);
02401
02402 <font class="keywordflow">if</font> (mkdir (filename_c, 0700) < 0)
02403 {
02404 <font class="keywordflow">if</font> (errno == EEXIST)
02405 <font class="keywordflow">return</font> TRUE;
02406
02407 dbus_set_error (error, DBUS_ERROR_FAILED,
02408 <font class="stringliteral">"Failed to create directory %s: %s\n"</font>,
02409 filename_c, _dbus_strerror (errno));
02410 <font class="keywordflow">return</font> FALSE;
02411 }
02412 <font class="keywordflow">else</font>
02413 <font class="keywordflow">return</font> TRUE;
02414 }
02415
02423 dbus_bool_t
<a name="l02424"></a><a class="code" href="group__DBusInternalsUtils.html#a85">02424</a> _dbus_delete_directory (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02425 <a class="code" href="structDBusError.html">DBusError</a> *error)
02426 {
02427 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02428
02429 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02430
02431 filename_c = _dbus_string_get_const_data (filename);
02432
02433 <font class="keywordflow">if</font> (rmdir (filename_c) != 0)
02434 {
02435 dbus_set_error (error, DBUS_ERROR_FAILED,
02436 <font class="stringliteral">"Failed to remove directory %s: %s\n"</font>,
02437 filename_c, _dbus_strerror (errno));
02438 <font class="keywordflow">return</font> FALSE;
02439 }
02440
02441 <font class="keywordflow">return</font> TRUE;
02442 }
02443
02454 dbus_bool_t
<a name="l02455"></a><a class="code" href="group__DBusInternalsUtils.html#a86">02455</a> _dbus_concat_dir_and_file (<a class="code" href="structDBusString.html">DBusString</a> *dir,
02456 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *next_component)
02457 {
02458 dbus_bool_t dir_ends_in_slash;
02459 dbus_bool_t file_starts_with_slash;
02460
02461 <font class="keywordflow">if</font> (_dbus_string_get_length (dir) == 0 ||
02462 _dbus_string_get_length (next_component) == 0)
02463 <font class="keywordflow">return</font> TRUE;
02464
02465 dir_ends_in_slash = <font class="charliteral">'/'</font> == _dbus_string_get_byte (dir,
02466 _dbus_string_get_length (dir) - 1);
02467
02468 file_starts_with_slash = <font class="charliteral">'/'</font> == _dbus_string_get_byte (next_component, 0);
02469
02470 <font class="keywordflow">if</font> (dir_ends_in_slash && file_starts_with_slash)
02471 {
02472 _dbus_string_shorten (dir, 1);
02473 }
02474 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (!(dir_ends_in_slash || file_starts_with_slash))
02475 {
02476 <font class="keywordflow">if</font> (!_dbus_string_append_byte (dir, <font class="charliteral">'/'</font>))
02477 <font class="keywordflow">return</font> FALSE;
02478 }
02479
02480 <font class="keywordflow">return</font> _dbus_string_copy (next_component, 0, dir,
02481 _dbus_string_get_length (dir));
02482 }
02483
02490 dbus_bool_t
<a name="l02491"></a><a class="code" href="group__DBusInternalsUtils.html#a87">02491</a> _dbus_string_get_dirname (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02492 <a class="code" href="structDBusString.html">DBusString</a> *dirname)
02493 {
02494 <font class="keywordtype">int</font> sep;
02495
02496 _dbus_assert (filename != dirname);
02497 _dbus_assert (filename != NULL);
02498 _dbus_assert (dirname != NULL);
02499
02500 <font class="comment">/* Ignore any separators on the end */</font>
02501 sep = _dbus_string_get_length (filename);
02502 <font class="keywordflow">if</font> (sep == 0)
02503 <font class="keywordflow">return</font> _dbus_string_append (dirname, <font class="stringliteral">"."</font>); <font class="comment">/* empty string passed in */</font>
02504
02505 <font class="keywordflow">while</font> (sep > 0 && _dbus_string_get_byte (filename, sep - 1) == <font class="charliteral">'/'</font>)
02506 --sep;
02507
02508 _dbus_assert (sep >= 0);
02509
02510 <font class="keywordflow">if</font> (sep == 0)
02511 <font class="keywordflow">return</font> _dbus_string_append (dirname, <font class="stringliteral">"/"</font>);
02512
02513 <font class="comment">/* Now find the previous separator */</font>
02514 _dbus_string_find_byte_backward (filename, sep, <font class="charliteral">'/'</font>, &sep);
02515 <font class="keywordflow">if</font> (sep < 0)
02516 <font class="keywordflow">return</font> _dbus_string_append (dirname, <font class="stringliteral">"."</font>);
02517
02518 <font class="comment">/* skip multiple separators */</font>
02519 <font class="keywordflow">while</font> (sep > 0 && _dbus_string_get_byte (filename, sep - 1) == <font class="charliteral">'/'</font>)
02520 --sep;
02521
02522 _dbus_assert (sep >= 0);
02523
02524 <font class="keywordflow">if</font> (sep == 0 &&
02525 _dbus_string_get_byte (filename, 0) == <font class="charliteral">'/'</font>)
02526 <font class="keywordflow">return</font> _dbus_string_append (dirname, <font class="stringliteral">"/"</font>);
02527 <font class="keywordflow">else</font>
02528 <font class="keywordflow">return</font> _dbus_string_copy_len (filename, 0, sep - 0,
02529 dirname, _dbus_string_get_length (dirname));
02530 }
02531
02538 dbus_bool_t
<a name="l02539"></a><a class="code" href="group__DBusInternalsUtils.html#a88">02539</a> _dbus_path_is_absolute (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename)
02540 {
02541 <font class="keywordflow">if</font> (_dbus_string_get_length (filename) > 0)
02542 <font class="keywordflow">return</font> _dbus_string_get_byte (filename, 0) == <font class="charliteral">'/'</font>;
02543 <font class="keywordflow">else</font>
02544 <font class="keywordflow">return</font> FALSE;
02545 }
02546
<a name="l02550"></a><a class="code" href="structDBusDirIter.html">02550</a> <font class="keyword">struct </font><a class="code" href="structDBusDirIter.html">DBusDirIter</a>
02551 {
<a name="l02552"></a><a class="code" href="structDBusDirIter.html#m0">02552</a> DIR *<a class="code" href="structDBusDirIter.html#m0">d</a>;
02554 };
02555
02563 <a class="code" href="structDBusDirIter.html">DBusDirIter</a>*
<a name="l02564"></a><a class="code" href="group__DBusInternalsUtils.html#a89">02564</a> _dbus_directory_open (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02565 <a class="code" href="structDBusError.html">DBusError</a> *error)
02566 {
02567 DIR *d;
02568 <a class="code" href="structDBusDirIter.html">DBusDirIter</a> *iter;
02569 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02570
02571 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02572
02573 filename_c = _dbus_string_get_const_data (filename);
02574
02575 d = opendir (filename_c);
02576 <font class="keywordflow">if</font> (d == NULL)
02577 {
02578 dbus_set_error (error, _dbus_error_from_errno (errno),
02579 <font class="stringliteral">"Failed to read directory \"%s\": %s"</font>,
02580 filename_c,
02581 _dbus_strerror (errno));
02582 <font class="keywordflow">return</font> NULL;
02583 }
02584 iter = dbus_new0 (<a class="code" href="structDBusDirIter.html">DBusDirIter</a>, 1);
02585 <font class="keywordflow">if</font> (iter == NULL)
02586 {
02587 closedir (d);
02588 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
02589 <font class="stringliteral">"Could not allocate memory for directory iterator"</font>);
02590 <font class="keywordflow">return</font> NULL;
02591 }
02592
02593 iter-><a class="code" href="structDBusDirIter.html#m0">d</a> = d;
02594
02595 <font class="keywordflow">return</font> iter;
02596 }
02597
02611 dbus_bool_t
<a name="l02612"></a><a class="code" href="group__DBusInternalsUtils.html#a90">02612</a> _dbus_directory_get_next_file (<a class="code" href="structDBusDirIter.html">DBusDirIter</a> *iter,
02613 <a class="code" href="structDBusString.html">DBusString</a> *filename,
02614 <a class="code" href="structDBusError.html">DBusError</a> *error)
02615 {
02616 <font class="keyword">struct </font>dirent *ent;
02617
02618 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02619
02620 again:
02621 errno = 0;
02622 ent = readdir (iter-><a class="code" href="structDBusDirIter.html#m0">d</a>);
02623 <font class="keywordflow">if</font> (ent == NULL)
02624 {
02625 <font class="keywordflow">if</font> (errno != 0)
02626 dbus_set_error (error,
02627 _dbus_error_from_errno (errno),
02628 <font class="stringliteral">"%s"</font>, _dbus_strerror (errno));
02629 <font class="keywordflow">return</font> FALSE;
02630 }
02631 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (ent->d_name[0] == <font class="charliteral">'.'</font> &&
02632 (ent->d_name[1] == <font class="charliteral">'\0'</font> ||
02633 (ent->d_name[1] == <font class="charliteral">'.'</font> && ent->d_name[2] == <font class="charliteral">'\0'</font>)))
02634 <font class="keywordflow">goto</font> again;
02635 <font class="keywordflow">else</font>
02636 {
02637 _dbus_string_set_length (filename, 0);
02638 <font class="keywordflow">if</font> (!_dbus_string_append (filename, ent->d_name))
02639 {
02640 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
02641 <font class="stringliteral">"No memory to read directory entry"</font>);
02642 <font class="keywordflow">return</font> FALSE;
02643 }
02644 <font class="keywordflow">else</font>
02645 <font class="keywordflow">return</font> TRUE;
02646 }
02647 }
02648
02652 <font class="keywordtype">void</font>
<a name="l02653"></a><a class="code" href="group__DBusInternalsUtils.html#a91">02653</a> _dbus_directory_close (<a class="code" href="structDBusDirIter.html">DBusDirIter</a> *iter)
02654 {
02655 closedir (iter-><a class="code" href="structDBusDirIter.html#m0">d</a>);
02656 dbus_free (iter);
02657 }
02658
02659 <font class="keyword">static</font> dbus_bool_t
02660 pseudorandom_generate_random_bytes (<a class="code" href="structDBusString.html">DBusString</a> *str,
02661 <font class="keywordtype">int</font> n_bytes)
02662 {
02663 <font class="keywordtype">int</font> old_len;
02664 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> tv_usec;
02665 <font class="keywordtype">int</font> i;
02666
02667 old_len = _dbus_string_get_length (str);
02668
02669 <font class="comment">/* fall back to pseudorandom */</font>
02670 _dbus_verbose (<font class="stringliteral">"Falling back to pseudorandom for %d bytes\n"</font>,
02671 n_bytes);
02672
02673 _dbus_get_current_time (NULL, &tv_usec);
02674 srand (tv_usec);
02675
02676 i = 0;
02677 <font class="keywordflow">while</font> (i < n_bytes)
02678 {
02679 <font class="keywordtype">double</font> r;
02680 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> b;
02681
02682 r = rand ();
02683 b = (r / (double) RAND_MAX) * 255.0;
02684
02685 <font class="keywordflow">if</font> (!_dbus_string_append_byte (str, b))
02686 <font class="keywordflow">goto</font> failed;
02687
02688 ++i;
02689 }
02690
02691 <font class="keywordflow">return</font> TRUE;
02692
02693 failed:
02694 _dbus_string_set_length (str, old_len);
02695 <font class="keywordflow">return</font> FALSE;
02696 }
02697
02706 dbus_bool_t
<a name="l02707"></a><a class="code" href="group__DBusInternalsUtils.html#a93">02707</a> _dbus_generate_random_bytes (<a class="code" href="structDBusString.html">DBusString</a> *str,
02708 <font class="keywordtype">int</font> n_bytes)
02709 {
02710 <font class="keywordtype">int</font> old_len;
02711 <font class="keywordtype">int</font> fd;
02712
02713 <font class="comment">/* FALSE return means "no memory", if it could</font>
02714 <font class="comment"> * mean something else then we'd need to return</font>
02715 <font class="comment"> * a DBusError. So we always fall back to pseudorandom</font>
02716 <font class="comment"> * if the I/O fails.</font>
02717 <font class="comment"> */</font>
02718
02719 old_len = _dbus_string_get_length (str);
02720 fd = -1;
02721
02722 <font class="comment">/* note, urandom on linux will fall back to pseudorandom */</font>
02723 fd = open (<font class="stringliteral">"/dev/urandom"</font>, O_RDONLY);
02724 <font class="keywordflow">if</font> (fd < 0)
02725 <font class="keywordflow">return</font> pseudorandom_generate_random_bytes (str, n_bytes);
02726
02727 <font class="keywordflow">if</font> (_dbus_read (fd, str, n_bytes) != n_bytes)
02728 {
02729 close (fd);
02730 _dbus_string_set_length (str, old_len);
02731 <font class="keywordflow">return</font> pseudorandom_generate_random_bytes (str, n_bytes);
02732 }
02733
02734 _dbus_verbose (<font class="stringliteral">"Read %d bytes from /dev/urandom\n"</font>,
02735 n_bytes);
02736
02737 close (fd);
02738
02739 <font class="keywordflow">return</font> TRUE;
02740 }
02741
02750 dbus_bool_t
<a name="l02751"></a><a class="code" href="group__DBusInternalsUtils.html#a94">02751</a> _dbus_generate_random_ascii (<a class="code" href="structDBusString.html">DBusString</a> *str,
02752 <font class="keywordtype">int</font> n_bytes)
02753 {
02754 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font> letters[] =
02755 <font class="stringliteral">"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz"</font>;
02756 <font class="keywordtype">int</font> i;
02757 <font class="keywordtype">int</font> len;
02758
02759 <font class="keywordflow">if</font> (!_dbus_generate_random_bytes (str, n_bytes))
02760 <font class="keywordflow">return</font> FALSE;
02761
02762 len = _dbus_string_get_length (str);
02763 i = len - n_bytes;
02764 <font class="keywordflow">while</font> (i < len)
02765 {
02766 _dbus_string_set_byte (str, i,
02767 letters[_dbus_string_get_byte (str, i) %
02768 (<font class="keyword">sizeof</font> (letters) - 1)]);
02769
02770 ++i;
02771 }
02772
02773 _dbus_assert (_dbus_string_validate_ascii (str, len - n_bytes,
02774 n_bytes));
02775
02776 <font class="keywordflow">return</font> TRUE;
02777 }
02778
02786 <font class="keyword">const</font> <font class="keywordtype">char</font>*
<a name="l02787"></a><a class="code" href="group__DBusInternalsUtils.html#a72">02787</a> _dbus_strerror (<font class="keywordtype">int</font> error_number)
02788 {
02789 <font class="keyword">const</font> <font class="keywordtype">char</font> *msg;
02790
02791 msg = strerror (error_number);
02792 <font class="keywordflow">if</font> (msg == NULL)
02793 msg = <font class="stringliteral">"unknown"</font>;
02794
02795 <font class="keywordflow">return</font> msg;
02796 }
02797
02801 <font class="keywordtype">void</font>
<a name="l02802"></a><a class="code" href="group__DBusInternalsUtils.html#a96">02802</a> _dbus_disable_sigpipe (<font class="keywordtype">void</font>)
02803 {
02804 signal (SIGPIPE, SIG_IGN);
02805 }
02806
02814 <font class="keywordtype">void</font>
<a name="l02815"></a><a class="code" href="group__DBusInternalsUtils.html#a97">02815</a> _dbus_fd_set_close_on_exec (<font class="keywordtype">int</font> fd)
02816 {
02817 <font class="keywordtype">int</font> val;
02818
02819 val = fcntl (fd, F_GETFD, 0);
02820
02821 <font class="keywordflow">if</font> (val < 0)
02822 <font class="keywordflow">return</font>;
02823
02824 val |= FD_CLOEXEC;
02825
02826 fcntl (fd, F_SETFD, val);
02827 }
02828
02838 <font class="keyword">const</font> <font class="keywordtype">char</font>*
<a name="l02839"></a><a class="code" href="group__DBusInternalsUtils.html#a98">02839</a> _dbus_error_from_errno (<font class="keywordtype">int</font> error_number)
02840 {
02841 <font class="keywordflow">switch</font> (error_number)
02842 {
02843 <font class="keywordflow">case</font> 0:
02844 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02845
02846 <font class="preprocessor">#ifdef EPROTONOSUPPORT</font>
02847 <font class="preprocessor"></font> <font class="keywordflow">case</font> EPROTONOSUPPORT:
02848 <font class="keywordflow">return</font> DBUS_ERROR_NOT_SUPPORTED;
02849 <font class="preprocessor">#endif</font>
02850 <font class="preprocessor"></font><font class="preprocessor">#ifdef EAFNOSUPPORT</font>
02851 <font class="preprocessor"></font> <font class="keywordflow">case</font> EAFNOSUPPORT:
02852 <font class="keywordflow">return</font> DBUS_ERROR_NOT_SUPPORTED;
02853 <font class="preprocessor">#endif</font>
02854 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENFILE</font>
02855 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENFILE:
02856 <font class="keywordflow">return</font> DBUS_ERROR_LIMITS_EXCEEDED; <font class="comment">/* kernel out of memory */</font>
02857 <font class="preprocessor">#endif</font>
02858 <font class="preprocessor"></font><font class="preprocessor">#ifdef EMFILE</font>
02859 <font class="preprocessor"></font> <font class="keywordflow">case</font> EMFILE:
02860 <font class="keywordflow">return</font> DBUS_ERROR_LIMITS_EXCEEDED;
02861 <font class="preprocessor">#endif</font>
02862 <font class="preprocessor"></font><font class="preprocessor">#ifdef EACCES</font>
02863 <font class="preprocessor"></font> <font class="keywordflow">case</font> EACCES:
02864 <font class="keywordflow">return</font> DBUS_ERROR_ACCESS_DENIED;
02865 <font class="preprocessor">#endif</font>
02866 <font class="preprocessor"></font><font class="preprocessor">#ifdef EPERM</font>
02867 <font class="preprocessor"></font> <font class="keywordflow">case</font> EPERM:
02868 <font class="keywordflow">return</font> DBUS_ERROR_ACCESS_DENIED;
02869 <font class="preprocessor">#endif</font>
02870 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENOBUFS</font>
02871 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENOBUFS:
02872 <font class="keywordflow">return</font> DBUS_ERROR_NO_MEMORY;
02873 <font class="preprocessor">#endif</font>
02874 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENOMEM</font>
02875 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENOMEM:
02876 <font class="keywordflow">return</font> DBUS_ERROR_NO_MEMORY;
02877 <font class="preprocessor">#endif</font>
02878 <font class="preprocessor"></font><font class="preprocessor">#ifdef EINVAL</font>
02879 <font class="preprocessor"></font> <font class="keywordflow">case</font> EINVAL:
02880 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02881 <font class="preprocessor">#endif</font>
02882 <font class="preprocessor"></font><font class="preprocessor">#ifdef EBADF</font>
02883 <font class="preprocessor"></font> <font class="keywordflow">case</font> EBADF:
02884 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02885 <font class="preprocessor">#endif</font>
02886 <font class="preprocessor"></font><font class="preprocessor">#ifdef EFAULT</font>
02887 <font class="preprocessor"></font> <font class="keywordflow">case</font> EFAULT:
02888 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02889 <font class="preprocessor">#endif</font>
02890 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENOTSOCK</font>
02891 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENOTSOCK:
02892 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02893 <font class="preprocessor">#endif</font>
02894 <font class="preprocessor"></font><font class="preprocessor">#ifdef EISCONN</font>
02895 <font class="preprocessor"></font> <font class="keywordflow">case</font> EISCONN:
02896 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02897 <font class="preprocessor">#endif</font>
02898 <font class="preprocessor"></font><font class="preprocessor">#ifdef ECONNREFUSED</font>
02899 <font class="preprocessor"></font> <font class="keywordflow">case</font> ECONNREFUSED:
02900 <font class="keywordflow">return</font> DBUS_ERROR_NO_SERVER;
02901 <font class="preprocessor">#endif</font>
02902 <font class="preprocessor"></font><font class="preprocessor">#ifdef ETIMEDOUT</font>
02903 <font class="preprocessor"></font> <font class="keywordflow">case</font> ETIMEDOUT:
02904 <font class="keywordflow">return</font> DBUS_ERROR_TIMEOUT;
02905 <font class="preprocessor">#endif</font>
02906 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENETUNREACH</font>
02907 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENETUNREACH:
02908 <font class="keywordflow">return</font> DBUS_ERROR_NO_NETWORK;
02909 <font class="preprocessor">#endif</font>
02910 <font class="preprocessor"></font><font class="preprocessor">#ifdef EADDRINUSE</font>
02911 <font class="preprocessor"></font> <font class="keywordflow">case</font> EADDRINUSE:
02912 <font class="keywordflow">return</font> DBUS_ERROR_ADDRESS_IN_USE;
02913 <font class="preprocessor">#endif</font>
02914 <font class="preprocessor"></font><font class="preprocessor">#ifdef EEXIST</font>
02915 <font class="preprocessor"></font> <font class="keywordflow">case</font> EEXIST:
02916 <font class="keywordflow">return</font> DBUS_ERROR_FILE_NOT_FOUND;
02917 <font class="preprocessor">#endif</font>
02918 <font class="preprocessor"></font><font class="preprocessor">#ifdef ENOENT</font>
02919 <font class="preprocessor"></font> <font class="keywordflow">case</font> ENOENT:
02920 <font class="keywordflow">return</font> DBUS_ERROR_FILE_NOT_FOUND;
02921 <font class="preprocessor">#endif</font>
02922 <font class="preprocessor"></font> }
02923
02924 <font class="keywordflow">return</font> DBUS_ERROR_FAILED;
02925 }
02926
02932 <font class="keywordtype">void</font>
<a name="l02933"></a><a class="code" href="group__DBusInternalsUtils.html#a99">02933</a> _dbus_exit (<font class="keywordtype">int</font> code)
02934 {
02935 _exit (code);
02936 }
02937
02946 dbus_bool_t
<a name="l02947"></a><a class="code" href="group__DBusInternalsUtils.html#a100">02947</a> _dbus_stat (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
02948 <a class="code" href="structDBusStat.html">DBusStat</a> *statbuf,
02949 <a class="code" href="structDBusError.html">DBusError</a> *error)
02950 {
02951 <font class="keyword">const</font> <font class="keywordtype">char</font> *filename_c;
02952 <font class="keyword">struct </font>stat sb;
02953
02954 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02955
02956 filename_c = _dbus_string_get_const_data (filename);
02957
02958 <font class="keywordflow">if</font> (stat (filename_c, &sb) < 0)
02959 {
02960 dbus_set_error (error, _dbus_error_from_errno (errno),
02961 <font class="stringliteral">"%s"</font>, _dbus_strerror (errno));
02962 <font class="keywordflow">return</font> FALSE;
02963 }
02964
02965 statbuf-><a class="code" href="structDBusStat.html#m0">mode</a> = sb.st_mode;
02966 statbuf-><a class="code" href="structDBusStat.html#m1">nlink</a> = sb.st_nlink;
02967 statbuf-><a class="code" href="structDBusStat.html#m2">uid</a> = sb.st_uid;
02968 statbuf-><a class="code" href="structDBusStat.html#m3">gid</a> = sb.st_gid;
02969 statbuf-><a class="code" href="structDBusStat.html#m4">size</a> = sb.st_size;
02970 statbuf-><a class="code" href="structDBusStat.html#m5">atime</a> = sb.st_atime;
02971 statbuf-><a class="code" href="structDBusStat.html#m6">mtime</a> = sb.st_mtime;
02972 statbuf-><a class="code" href="structDBusStat.html#m7">ctime</a> = sb.st_ctime;
02973
02974 <font class="keywordflow">return</font> TRUE;
02975 }
02976
02987 dbus_bool_t
<a name="l02988"></a><a class="code" href="group__DBusInternalsUtils.html#a101">02988</a> _dbus_full_duplex_pipe (<font class="keywordtype">int</font> *fd1,
02989 <font class="keywordtype">int</font> *fd2,
02990 dbus_bool_t blocking,
02991 <a class="code" href="structDBusError.html">DBusError</a> *error)
02992 {
02993 <font class="preprocessor">#ifdef HAVE_SOCKETPAIR</font>
02994 <font class="preprocessor"></font> <font class="keywordtype">int</font> fds[2];
02995
02996 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02997
02998 <font class="keywordflow">if</font> (socketpair (AF_UNIX, SOCK_STREAM, 0, fds) < 0)
02999 {
03000 dbus_set_error (error, _dbus_error_from_errno (errno),
03001 <font class="stringliteral">"Could not create full-duplex pipe"</font>);
03002 <font class="keywordflow">return</font> FALSE;
03003 }
03004
03005 <font class="keywordflow">if</font> (!blocking &&
03006 (!_dbus_set_fd_nonblocking (fds[0], NULL) ||
03007 !_dbus_set_fd_nonblocking (fds[1], NULL)))
03008 {
03009 dbus_set_error (error, _dbus_error_from_errno (errno),
03010 <font class="stringliteral">"Could not set full-duplex pipe nonblocking"</font>);
03011
03012 close (fds[0]);
03013 close (fds[1]);
03014
03015 <font class="keywordflow">return</font> FALSE;
03016 }
03017
03018 *fd1 = fds[0];
03019 *fd2 = fds[1];
03020
03021 <font class="keywordflow">return</font> TRUE;
03022 <font class="preprocessor">#else</font>
03023 <font class="preprocessor"></font> _dbus_warn (<font class="stringliteral">"_dbus_full_duplex_pipe() not implemented on this OS\n"</font>);
03024 dbus_set_error (error, DBUS_ERROR_FAILED,
03025 <font class="stringliteral">"_dbus_full_duplex_pipe() not implemented on this OS"</font>);
03026 <font class="keywordflow">return</font> FALSE;
03027 <font class="preprocessor">#endif</font>
03028 <font class="preprocessor"></font>}
03029
03037 dbus_bool_t
<a name="l03038"></a><a class="code" href="group__DBusInternalsUtils.html#a102">03038</a> _dbus_close (<font class="keywordtype">int</font> fd,
03039 <a class="code" href="structDBusError.html">DBusError</a> *error)
03040 {
03041 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
03042
03043 again:
03044 <font class="keywordflow">if</font> (close (fd) < 0)
03045 {
03046 <font class="keywordflow">if</font> (errno == EINTR)
03047 <font class="keywordflow">goto</font> again;
03048
03049 dbus_set_error (error, _dbus_error_from_errno (errno),
03050 <font class="stringliteral">"Could not close fd %d"</font>, fd);
03051 <font class="keywordflow">return</font> FALSE;
03052 }
03053
03054 <font class="keywordflow">return</font> TRUE;
03055 }
03056
03064 dbus_bool_t
<a name="l03065"></a><a class="code" href="group__DBusInternalsUtils.html#a80">03065</a> _dbus_set_fd_nonblocking (<font class="keywordtype">int</font> fd,
03066 <a class="code" href="structDBusError.html">DBusError</a> *error)
03067 {
03068 <font class="keywordtype">int</font> val;
03069
03070 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
03071
03072 val = fcntl (fd, F_GETFL, 0);
03073 <font class="keywordflow">if</font> (val < 0)
03074 {
03075 dbus_set_error (error, _dbus_error_from_errno (errno),
03076 <font class="stringliteral">"Failed to get flags from file descriptor %d: %s"</font>,
03077 fd, _dbus_strerror (errno));
03078 _dbus_verbose (<font class="stringliteral">"Failed to get flags for fd %d: %s\n"</font>, fd,
03079 _dbus_strerror (errno));
03080 <font class="keywordflow">return</font> FALSE;
03081 }
03082
03083 <font class="keywordflow">if</font> (fcntl (fd, F_SETFL, val | O_NONBLOCK) < 0)
03084 {
03085 dbus_set_error (error, _dbus_error_from_errno (errno),
03086 <font class="stringliteral">"Failed to set nonblocking flag of file descriptor %d: %s"</font>,
03087 fd, _dbus_strerror (errno));
03088 _dbus_verbose (<font class="stringliteral">"Failed to set fd %d nonblocking: %s\n"</font>,
03089 fd, _dbus_strerror (errno));
03090
03091 <font class="keywordflow">return</font> FALSE;
03092 }
03093
03094 <font class="keywordflow">return</font> TRUE;
03095 }
03096
03102 <font class="keywordtype">void</font>
<a name="l03103"></a><a class="code" href="group__DBusInternalsUtils.html#a104">03103</a> _dbus_print_backtrace (<font class="keywordtype">void</font>)
03104 {
03105 <font class="preprocessor">#if defined (HAVE_BACKTRACE) && defined (DBUS_ENABLE_VERBOSE_MODE)</font>
03106 <font class="preprocessor"></font> <font class="keywordtype">void</font> *bt[500];
03107 <font class="keywordtype">int</font> bt_size;
03108 <font class="keywordtype">int</font> i;
03109 <font class="keywordtype">char</font> **syms;
03110
03111 bt_size = backtrace (bt, 500);
03112
03113 syms = backtrace_symbols (bt, bt_size);
03114
03115 i = 0;
03116 <font class="keywordflow">while</font> (i < bt_size)
03117 {
03118 _dbus_verbose (<font class="stringliteral">" %s\n"</font>, syms[i]);
03119 ++i;
03120 }
03121
03122 free (syms);
03123 <font class="preprocessor">#else</font>
03124 <font class="preprocessor"></font> _dbus_verbose (<font class="stringliteral">" D-BUS not compiled with backtrace support\n"</font>);
03125 <font class="preprocessor">#endif</font>
03126 <font class="preprocessor"></font>}
03127
03135 dbus_bool_t
<a name="l03136"></a><a class="code" href="group__DBusInternalsUtils.html#a105">03136</a> _dbus_become_daemon (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *pidfile,
03137 <a class="code" href="structDBusError.html">DBusError</a> *error)
03138 {
03139 <font class="keyword">const</font> <font class="keywordtype">char</font> *s;
03140 pid_t child_pid;
03141 <font class="keywordtype">int</font> dev_null_fd;
03142
03143 _dbus_verbose (<font class="stringliteral">"Becoming a daemon...\n"</font>);
03144
03145 _dbus_verbose (<font class="stringliteral">"chdir to /\n"</font>);
03146 <font class="keywordflow">if</font> (chdir (<font class="stringliteral">"/"</font>) < 0)
03147 {
03148 dbus_set_error (error, DBUS_ERROR_FAILED,
03149 <font class="stringliteral">"Could not chdir() to root directory"</font>);
03150 <font class="keywordflow">return</font> FALSE;
03151 }
03152
03153 _dbus_verbose (<font class="stringliteral">"forking...\n"</font>);
03154 <font class="keywordflow">switch</font> ((child_pid = fork ()))
03155 {
03156 <font class="keywordflow">case</font> -1:
03157 _dbus_verbose (<font class="stringliteral">"fork failed\n"</font>);
03158 dbus_set_error (error, _dbus_error_from_errno (errno),
03159 <font class="stringliteral">"Failed to fork daemon: %s"</font>, _dbus_strerror (errno));
03160 <font class="keywordflow">return</font> FALSE;
03161 <font class="keywordflow">break</font>;
03162
03163 <font class="keywordflow">case</font> 0:
03164 _dbus_verbose (<font class="stringliteral">"in child, closing std file descriptors\n"</font>);
03165
03166 <font class="comment">/* silently ignore failures here, if someone</font>
03167 <font class="comment"> * doesn't have /dev/null we may as well try</font>
03168 <font class="comment"> * to continue anyhow</font>
03169 <font class="comment"> */</font>
03170
03171 dev_null_fd = open (<font class="stringliteral">"/dev/null"</font>, O_RDWR);
03172 <font class="keywordflow">if</font> (dev_null_fd >= 0)
03173 {
03174 dup2 (dev_null_fd, 0);
03175 dup2 (dev_null_fd, 1);
03176
03177 s = _dbus_getenv (<font class="stringliteral">"DBUS_DEBUG_OUTPUT"</font>);
03178 <font class="keywordflow">if</font> (s == NULL || *s == <font class="charliteral">'\0'</font>)
03179 dup2 (dev_null_fd, 2);
03180 <font class="keywordflow">else</font>
03181 _dbus_verbose (<font class="stringliteral">"keeping stderr open due to DBUS_DEBUG_OUTPUT\n"</font>);
03182 }
03183
03184 <font class="comment">/* Get a predictable umask */</font>
03185 _dbus_verbose (<font class="stringliteral">"setting umask\n"</font>);
03186 umask (022);
03187 <font class="keywordflow">break</font>;
03188
03189 <font class="keywordflow">default</font>:
03190 <font class="keywordflow">if</font> (pidfile)
03191 {
03192 _dbus_verbose (<font class="stringliteral">"parent writing pid file\n"</font>);
03193 <font class="keywordflow">if</font> (!_dbus_write_pid_file (pidfile,
03194 child_pid,
03195 error))
03196 {
03197 _dbus_verbose (<font class="stringliteral">"pid file write failed, killing child\n"</font>);
03198 kill (child_pid, SIGTERM);
03199 <font class="keywordflow">return</font> FALSE;
03200 }
03201 }
03202 _dbus_verbose (<font class="stringliteral">"parent exiting\n"</font>);
03203 _exit (0);
03204 <font class="keywordflow">break</font>;
03205 }
03206
03207 _dbus_verbose (<font class="stringliteral">"calling setsid()\n"</font>);
03208 <font class="keywordflow">if</font> (setsid () == -1)
03209 _dbus_assert_not_reached (<font class="stringliteral">"setsid() failed"</font>);
03210
03211 <font class="keywordflow">return</font> TRUE;
03212 }
03213
03222 dbus_bool_t
<a name="l03223"></a><a class="code" href="group__DBusInternalsUtils.html#a106">03223</a> _dbus_write_pid_file (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *filename,
03224 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> pid,
03225 <a class="code" href="structDBusError.html">DBusError</a> *error)
03226 {
03227 <font class="keyword">const</font> <font class="keywordtype">char</font> *cfilename;
03228 <font class="keywordtype">int</font> fd;
03229 FILE *f;
03230
03231 cfilename = _dbus_string_get_const_data (filename);
03232
03233 fd = open (cfilename, O_WRONLY|O_CREAT|O_EXCL|O_BINARY, 0644);
03234
03235 <font class="keywordflow">if</font> (fd < 0)
03236 {
03237 dbus_set_error (error, _dbus_error_from_errno (errno),
03238 <font class="stringliteral">"Failed to open \"%s\": %s"</font>, cfilename,
03239 _dbus_strerror (errno));
03240 <font class="keywordflow">return</font> FALSE;
03241 }
03242
03243 <font class="keywordflow">if</font> ((f = fdopen (fd, <font class="stringliteral">"w"</font>)) == NULL)
03244 {
03245 dbus_set_error (error, _dbus_error_from_errno (errno),
03246 <font class="stringliteral">"Failed to fdopen fd %d: %s"</font>, fd, _dbus_strerror (errno));
03247 close (fd);
03248 <font class="keywordflow">return</font> FALSE;
03249 }
03250
03251 <font class="keywordflow">if</font> (fprintf (f, <font class="stringliteral">"%lu\n"</font>, pid) < 0)
03252 {
03253 dbus_set_error (error, _dbus_error_from_errno (errno),
03254 <font class="stringliteral">"Failed to write to \"%s\": %s"</font>, cfilename,
03255 _dbus_strerror (errno));
03256 <font class="keywordflow">return</font> FALSE;
03257 }
03258
03259 <font class="keywordflow">if</font> (fclose (f) == EOF)
03260 {
03261 dbus_set_error (error, _dbus_error_from_errno (errno),
03262 <font class="stringliteral">"Failed to close \"%s\": %s"</font>, cfilename,
03263 _dbus_strerror (errno));
03264 <font class="keywordflow">return</font> FALSE;
03265 }
03266
03267 <font class="keywordflow">return</font> TRUE;
03268 }
03269
03278 dbus_bool_t
<a name="l03279"></a><a class="code" href="group__DBusInternalsUtils.html#a107">03279</a> _dbus_change_identity (dbus_uid_t uid,
03280 dbus_gid_t gid,
03281 <a class="code" href="structDBusError.html">DBusError</a> *error)
03282 {
03283 <font class="comment">/* Set GID first, or the setuid may remove our permission</font>
03284 <font class="comment"> * to change the GID</font>
03285 <font class="comment"> */</font>
03286 <font class="keywordflow">if</font> (setgid (gid) < 0)
03287 {
03288 dbus_set_error (error, _dbus_error_from_errno (errno),
03289 <font class="stringliteral">"Failed to set GID to %lu: %s"</font>, gid,
03290 _dbus_strerror (errno));
03291 <font class="keywordflow">return</font> FALSE;
03292 }
03293
03294 <font class="keywordflow">if</font> (setuid (uid) < 0)
03295 {
03296 dbus_set_error (error, _dbus_error_from_errno (errno),
03297 <font class="stringliteral">"Failed to set UID to %lu: %s"</font>, uid,
03298 _dbus_strerror (errno));
03299 <font class="keywordflow">return</font> FALSE;
03300 }
03301
03302 <font class="keywordflow">return</font> TRUE;
03303 }
03304
03310 <font class="keywordtype">void</font>
<a name="l03311"></a><a class="code" href="group__DBusInternalsUtils.html#a108">03311</a> _dbus_set_signal_handler (<font class="keywordtype">int</font> sig,
03312 DBusSignalHandler handler)
03313 {
03314 <font class="keyword">struct </font>sigaction act;
03315 sigset_t empty_mask;
03316
03317 sigemptyset (&empty_mask);
03318 act.sa_handler = handler;
03319 act.sa_mask = empty_mask;
03320 act.sa_flags = 0;
03321 sigaction (sig, &act, 0);
03322 }
03323
03324
03325 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
03326 <font class="preprocessor"></font><font class="preprocessor">#include <stdlib.h></font>
03327 <font class="keyword">static</font> <font class="keywordtype">void</font>
03328 check_dirname (<font class="keyword">const</font> <font class="keywordtype">char</font> *filename,
03329 <font class="keyword">const</font> <font class="keywordtype">char</font> *dirname)
03330 {
03331 <a class="code" href="structDBusString.html">DBusString</a> f, d;
03332
03333 _dbus_string_init_const (&f, filename);
03334
03335 <font class="keywordflow">if</font> (!_dbus_string_init (&d))
03336 _dbus_assert_not_reached (<font class="stringliteral">"no memory"</font>);
03337
03338 <font class="keywordflow">if</font> (!_dbus_string_get_dirname (&f, &d))
03339 _dbus_assert_not_reached (<font class="stringliteral">"no memory"</font>);
03340
03341 <font class="keywordflow">if</font> (!_dbus_string_equal_c_str (&d, dirname))
03342 {
03343 _dbus_warn (<font class="stringliteral">"For filename \"%s\" got dirname \"%s\" and expected \"%s\"\n"</font>,
03344 filename,
03345 _dbus_string_get_const_data (&d),
03346 dirname);
03347 exit (1);
03348 }
03349
03350 _dbus_string_free (&d);
03351 }
03352
03353 <font class="keyword">static</font> <font class="keywordtype">void</font>
03354 check_path_absolute (<font class="keyword">const</font> <font class="keywordtype">char</font> *path,
03355 dbus_bool_t expected)
03356 {
03357 <a class="code" href="structDBusString.html">DBusString</a> p;
03358
03359 _dbus_string_init_const (&p, path);
03360
03361 <font class="keywordflow">if</font> (_dbus_path_is_absolute (&p) != expected)
03362 {
03363 _dbus_warn (<font class="stringliteral">"For path \"%s\" expected absolute = %d got %d\n"</font>,
03364 path, expected, _dbus_path_is_absolute (&p));
03365 exit (1);
03366 }
03367 }
03368
03374 dbus_bool_t
<a name="l03375"></a><a class="code" href="group__DBusInternalsUtils.html#a111">03375</a> _dbus_sysdeps_test (<font class="keywordtype">void</font>)
03376 {
03377 <a class="code" href="structDBusString.html">DBusString</a> str;
03378 <font class="keywordtype">double</font> val;
03379 <font class="keywordtype">int</font> pos;
03380
03381 check_dirname (<font class="stringliteral">"foo"</font>, <font class="stringliteral">"."</font>);
03382 check_dirname (<font class="stringliteral">"foo/bar"</font>, <font class="stringliteral">"foo"</font>);
03383 check_dirname (<font class="stringliteral">"foo//bar"</font>, <font class="stringliteral">"foo"</font>);
03384 check_dirname (<font class="stringliteral">"foo///bar"</font>, <font class="stringliteral">"foo"</font>);
03385 check_dirname (<font class="stringliteral">"foo/bar/"</font>, <font class="stringliteral">"foo"</font>);
03386 check_dirname (<font class="stringliteral">"foo//bar/"</font>, <font class="stringliteral">"foo"</font>);
03387 check_dirname (<font class="stringliteral">"foo///bar/"</font>, <font class="stringliteral">"foo"</font>);
03388 check_dirname (<font class="stringliteral">"foo/bar//"</font>, <font class="stringliteral">"foo"</font>);
03389 check_dirname (<font class="stringliteral">"foo//bar////"</font>, <font class="stringliteral">"foo"</font>);
03390 check_dirname (<font class="stringliteral">"foo///bar///////"</font>, <font class="stringliteral">"foo"</font>);
03391 check_dirname (<font class="stringliteral">"/foo"</font>, <font class="stringliteral">"/"</font>);
03392 check_dirname (<font class="stringliteral">"</font>
03393 <font class="stringliteral"> check_dirname ("</font>/foo/bar<font class="stringliteral">", "</font>/foo<font class="stringliteral">");</font>
03394 <font class="stringliteral"> check_dirname ("</font>/foo<font class="comment">//bar", "/foo");</font>
03395 check_dirname (<font class="stringliteral">"/foo///bar"</font>, <font class="stringliteral">"/foo"</font>);
03396 check_dirname (<font class="stringliteral">"/"</font>, <font class="stringliteral">"/"</font>);
03397 check_dirname (<font class="stringliteral">"</font>
03398 <font class="stringliteral"> check_dirname ("</font><font class="stringliteral">", "</font>.<font class="stringliteral">"); </font>
03399 <font class="stringliteral"></font>
03400 <font class="stringliteral"></font>
03401 <font class="stringliteral"> _dbus_string_init_const (&str, "</font>3.5<font class="stringliteral">");</font>
03402 <font class="stringliteral"> if (!_dbus_string_parse_double (&str,</font>
03403 <font class="stringliteral"> 0, &val, &pos))</font>
03404 <font class="stringliteral"> {</font>
03405 <font class="stringliteral"> _dbus_warn ("</font>Failed to parse <font class="keywordtype">double</font><font class="stringliteral">");</font>
03406 <font class="stringliteral"> exit (1);</font>
03407 <font class="stringliteral"> }</font>
03408 <font class="stringliteral"> if (val != 3.5)</font>
03409 <font class="stringliteral"> {</font>
03410 <font class="stringliteral"> _dbus_warn ("</font>Failed to parse 3.5 correctly, got: %f<font class="stringliteral">", val);</font>
03411 <font class="stringliteral"> exit (1);</font>
03412 <font class="stringliteral"> }</font>
03413 <font class="stringliteral"> if (pos != 3)</font>
03414 <font class="stringliteral"> {</font>
03415 <font class="stringliteral"> _dbus_warn ("</font>_dbus_string_parse_double of \<font class="stringliteral">"3.5\" returned wrong position %d"</font>, pos);
03416 exit (1);
03417 }
03418
03419 _dbus_string_init_const (&str, <font class="stringliteral">"0xff"</font>);
03420 <font class="keywordflow">if</font> (!_dbus_string_parse_double (&str,
03421 0, &val, &pos))
03422 {
03423 _dbus_warn (<font class="stringliteral">"Failed to parse double"</font>);
03424 exit (1);
03425 }
03426 <font class="keywordflow">if</font> (val != 0xff)
03427 {
03428 _dbus_warn (<font class="stringliteral">"Failed to parse 0xff correctly, got: %f"</font>, val);
03429 exit (1);
03430 }
03431 <font class="keywordflow">if</font> (pos != 4)
03432 {
03433 _dbus_warn (<font class="stringliteral">"_dbus_string_parse_double of \"0xff\" returned wrong position %d"</font>, pos);
03434 exit (1);
03435 }
03436
03437 check_path_absolute (<font class="stringliteral">"/"</font>, TRUE);
03438 check_path_absolute (<font class="stringliteral">"/foo"</font>, TRUE);
03439 check_path_absolute (<font class="stringliteral">""</font>, FALSE);
03440 check_path_absolute (<font class="stringliteral">"foo"</font>, FALSE);
03441 check_path_absolute (<font class="stringliteral">"foo/bar"</font>, FALSE);
03442
03443 <font class="keywordflow">return</font> TRUE;
03444 }
03445 <font class="preprocessor">#endif </font><font class="comment">/* DBUS_BUILD_TESTS */</font>
03446
</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">
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