#ifdef HAVE_GETPEERUCRED
#include <ucred.h>
#endif
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
#ifdef HAVE_ADT
#include <bsm/adt.h>
#include "sd-daemon.h"
+#if !DBUS_USE_SYNC
+#include <pthread.h>
+#endif
+
#ifndef O_BINARY
#define O_BINARY 0
#endif
*
* This will set FD_CLOEXEC for the sockets returned.
*
- * @oaram fds the file descriptors
+ * @param fds the file descriptors
* @param error return location for errors
* @returns the number of file descriptors
*/
if (pid_read != DBUS_PID_UNSET)
{
- if (!_dbus_credentials_add_unix_pid (credentials, pid_read))
+ if (!_dbus_credentials_add_pid (credentials, pid_read))
{
_DBUS_SET_OOM (error);
return FALSE;
_dbus_assert (sizeof (uid_t) <= sizeof (dbus_uid_t));
_dbus_assert (sizeof (gid_t) <= sizeof (dbus_gid_t));
- if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
+ if (!_dbus_credentials_add_pid(credentials, _dbus_getpid()))
return FALSE;
if (!_dbus_credentials_add_unix_uid(credentials, _dbus_geteuid()))
return FALSE;
}
#if !DBUS_USE_SYNC
-_DBUS_DEFINE_GLOBAL_LOCK (atomic);
+/* To be thread-safe by default on platforms that don't necessarily have
+ * atomic operations (notably Debian armel, which is armv4t), we must
+ * use a mutex that can be initialized statically, like this.
+ * GLib >= 2.32 uses a similar system.
+ */
+static pthread_mutex_t atomic_mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
/**
return __sync_add_and_fetch(&atomic->value, 1)-1;
#else
dbus_int32_t res;
- _DBUS_LOCK (atomic);
+
+ pthread_mutex_lock (&atomic_mutex);
res = atomic->value;
atomic->value += 1;
- _DBUS_UNLOCK (atomic);
+ pthread_mutex_unlock (&atomic_mutex);
+
return res;
#endif
}
#else
dbus_int32_t res;
- _DBUS_LOCK (atomic);
+ pthread_mutex_lock (&atomic_mutex);
res = atomic->value;
atomic->value -= 1;
- _DBUS_UNLOCK (atomic);
+ pthread_mutex_unlock (&atomic_mutex);
+
return res;
#endif
}
#else
dbus_int32_t res;
- _DBUS_LOCK (atomic);
+ pthread_mutex_lock (&atomic_mutex);
res = atomic->value;
- _DBUS_UNLOCK (atomic);
+ pthread_mutex_unlock (&atomic_mutex);
+
return res;
#endif
}
* (i.e. avoids stdin/stdout/stderr). Sets O_CLOEXEC.
*
* @param fd the file descriptor to duplicate
+ * @param error address of error location.
* @returns duplicated file descriptor
* */
int
char static_buf[1024];
int bufsize = sizeof (static_buf);
int len;
+ va_list args_copy;
- len = vsnprintf (static_buf, bufsize, format, args);
+ DBUS_VA_COPY (args_copy, args);
+ len = vsnprintf (static_buf, bufsize, format, args_copy);
+ va_end (args_copy);
/* If vsnprintf() returned non-negative, then either the string fits in
* static_buf, or this OS has the POSIX and C99 behaviour where vsnprintf
* or the real length could be coincidentally the same. Which is it?
* If vsnprintf returns the truncated length, we'll go to the slow
* path. */
- if (vsnprintf (static_buf, 1, format, args) == 1)
+ DBUS_VA_COPY (args_copy, args);
+
+ if (vsnprintf (static_buf, 1, format, args_copy) == 1)
len = -1;
+
+ va_end (args_copy);
}
/* If vsnprintf() returned negative, we have to do more work.
if (buf == NULL)
return -1;
- len = vsnprintf (buf, bufsize, format, args);
+ DBUS_VA_COPY (args_copy, args);
+ len = vsnprintf (buf, bufsize, format, args_copy);
+ va_end (args_copy);
+
dbus_free (buf);
/* If the reported length is exactly the buffer size, round up to the
* Gets the temporary files directory by inspecting the environment variables
* TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
*
- * @returns location of temp directory
+ * @returns location of temp directory, or #NULL if no memory for locking
*/
const char*
_dbus_get_tmpdir(void)
{
+ /* Protected by _DBUS_LOCK_sysdeps */
static const char* tmpdir = NULL;
+ if (!_DBUS_LOCK (sysdeps))
+ return NULL;
+
if (tmpdir == NULL)
{
/* TMPDIR is what glibc uses, then
tmpdir = "/tmp";
}
+ _DBUS_UNLOCK (sysdeps);
+
_dbus_assert(tmpdir != NULL);
return tmpdir;
}
+#if defined(DBUS_ENABLE_X11_AUTOLAUNCH) || defined(DBUS_ENABLE_LAUNCHD)
/**
* Execute a subprocess, returning up to 1024 bytes of output
* into @p result.
/* set-up stdXXX */
close (result_pipe[READ_END]);
close (errors_pipe[READ_END]);
- close (0); /* close stdin */
- close (1); /* close stdout */
- close (2); /* close stderr */
- if (dup2 (fd, 0) == -1)
+ if (dup2 (fd, 0) == -1) /* setup stdin */
_exit (1);
- if (dup2 (result_pipe[WRITE_END], 1) == -1)
+ if (dup2 (result_pipe[WRITE_END], 1) == -1) /* setup stdout */
_exit (1);
- if (dup2 (errors_pipe[WRITE_END], 2) == -1)
+ if (dup2 (errors_pipe[WRITE_END], 2) == -1) /* setup stderr */
_exit (1);
_dbus_close_all ();
return retval;
}
+#endif
/**
* Returns the address of a new session bus.
* address. If a failure happens, returns #FALSE and
* sets an error in @p error.
*
+ * @param scope scope of autolaunch (Windows only)
* @param address a DBusString where the address can be stored
* @param error a DBusError to store the error in case of failure
* @returns #TRUE on success, #FALSE if an error happened
* but that's done elsewhere, and if it worked, this function wouldn't
* be called.) */
const char *display;
- static char *argv[6];
+ char *argv[6];
int i;
DBusString uuid;
dbus_bool_t retval;
return _dbus_read_uuid_file (&filename, machine_id, FALSE, error);
}
-#define DBUS_UNIX_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
-#define DBUS_UNIX_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
-
/**
* quries launchd for a specific env var which holds the socket path.
+ * @param socket_path append the socket path to this DBusString
* @param launchd_env_var the env var to look up
* @param error a DBusError to store the error in case of failure
* @return the value of the env var
}
/**
- * Returns the standard directories for a session bus to look for service
- * activation files
- *
- * On UNIX this should be the standard xdg freedesktop.org data directories:
- *
- * XDG_DATA_HOME=${XDG_DATA_HOME-$HOME/.local/share}
- * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
- *
- * and
- *
- * DBUS_DATADIR
- *
- * @param dirs the directory list we are returning
- * @returns #FALSE on OOM
- */
-
-dbus_bool_t
-_dbus_get_standard_session_servicedirs (DBusList **dirs)
-{
- const char *xdg_data_home;
- const char *xdg_data_dirs;
- DBusString servicedir_path;
-
- if (!_dbus_string_init (&servicedir_path))
- return FALSE;
-
- xdg_data_home = _dbus_getenv ("XDG_DATA_HOME");
- xdg_data_dirs = _dbus_getenv ("XDG_DATA_DIRS");
-
- if (xdg_data_home != NULL)
- {
- if (!_dbus_string_append (&servicedir_path, xdg_data_home))
- goto oom;
- }
- else
- {
- const DBusString *homedir;
- DBusString local_share;
-
- if (!_dbus_homedir_from_current_process (&homedir))
- goto oom;
-
- if (!_dbus_string_append (&servicedir_path, _dbus_string_get_const_data (homedir)))
- goto oom;
-
- _dbus_string_init_const (&local_share, "/.local/share");
- if (!_dbus_concat_dir_and_file (&servicedir_path, &local_share))
- goto oom;
- }
-
- if (!_dbus_string_append (&servicedir_path, ":"))
- goto oom;
-
- if (xdg_data_dirs != NULL)
- {
- if (!_dbus_string_append (&servicedir_path, xdg_data_dirs))
- goto oom;
-
- if (!_dbus_string_append (&servicedir_path, ":"))
- goto oom;
- }
- else
- {
- if (!_dbus_string_append (&servicedir_path, "/usr/local/share:/usr/share:"))
- goto oom;
- }
-
- /*
- * add configured datadir to defaults
- * this may be the same as an xdg dir
- * however the config parser should take
- * care of duplicates
- */
- if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
- goto oom;
-
- if (!_dbus_split_paths_and_append (&servicedir_path,
- DBUS_UNIX_STANDARD_SESSION_SERVICEDIR,
- dirs))
- goto oom;
-
- _dbus_string_free (&servicedir_path);
- return TRUE;
-
- oom:
- _dbus_string_free (&servicedir_path);
- return FALSE;
-}
-
-
-/**
- * Returns the standard directories for a system bus to look for service
- * activation files
- *
- * On UNIX this should be the standard xdg freedesktop.org data directories:
- *
- * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
- *
- * and
- *
- * DBUS_DATADIR
- *
- * On Windows there is no system bus and this function can return nothing.
- *
- * @param dirs the directory list we are returning
- * @returns #FALSE on OOM
- */
-
-dbus_bool_t
-_dbus_get_standard_system_servicedirs (DBusList **dirs)
-{
- /*
- * DBUS_DATADIR may be the same as one of the standard directories. However,
- * the config parser should take care of the duplicates.
- *
- * Also, append /lib as counterpart of /usr/share on the root
- * directory (the root directory does not know /share), in order to
- * facilitate early boot system bus activation where /usr might not
- * be available.
- */
- static const char standard_search_path[] =
- "/usr/local/share:"
- "/usr/share:"
- DBUS_DATADIR ":"
- "/lib";
- DBusString servicedir_path;
-
- _dbus_string_init_const (&servicedir_path, standard_search_path);
-
- return _dbus_split_paths_and_append (&servicedir_path,
- DBUS_UNIX_STANDARD_SYSTEM_SERVICEDIR,
- dirs);
-}
-
-/**
- * Append the absolute path of the system.conf file
- * (there is no system bus on Windows so this can just
- * return FALSE and print a warning or something)
- *
- * @param str the string to append to
- * @returns #FALSE if no memory
- */
-dbus_bool_t
-_dbus_append_system_config_file (DBusString *str)
-{
- return _dbus_string_append (str, DBUS_SYSTEM_CONFIG_FILE);
-}
-
-/**
- * Append the absolute path of the session.conf file.
- *
- * @param str the string to append to
- * @returns #FALSE if no memory
- */
-dbus_bool_t
-_dbus_append_session_config_file (DBusString *str)
-{
- return _dbus_string_append (str, DBUS_SESSION_CONFIG_FILE);
-}
-
-/**
* Called when the bus daemon is signaled to reload its configuration; any
* caches should be nuked. Of course any caches that need explicit reload
* are probably broken, but c'est la vie.
if (!_dbus_homedir_from_uid (uid, &homedir))
goto failed;
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
{
const char *override;
}
else
{
+ /* Not strictly thread-safe, but if we fail at thread-safety here,
+ * the worst that will happen is some extra warnings. */
static dbus_bool_t already_warned = FALSE;
if (!already_warned)
{
#endif
}
-
-/*
- * replaces the term DBUS_PREFIX in configure_time_path by the
- * current dbus installation directory. On unix this function is a noop
- *
- * @param configure_time_path
- * @return real path
- */
-const char *
-_dbus_replace_install_prefix (const char *configure_time_path)
-{
- return configure_time_path;
-}
-
/**
* Closes all file descriptors except the first three (i.e. stdin,
* stdout, stderr).
uid_t ruid, euid, suid; /* Real, effective and saved user ID's */
gid_t rgid, egid, sgid; /* Real, effective and saved group ID's */
+ /* We call into this function from _dbus_threads_init_platform_specific()
+ * to make sure these are initialized before we start threading. */
static dbus_bool_t check_setuid_initialised;
static dbus_bool_t is_setuid;