* Copyright (C) 2002, 2003 Red Hat, Inc.
* Copyright (C) 2003 CodeFactory AB
* Copyright (C) 2005 Novell, Inc.
- * Copyright (C) 2006 Ralf Habacker <ralf.habacker@freenet.de>
* Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
* Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
+ * Copyright (C) 2006-2013 Ralf Habacker <ralf.habacker@freenet.de>
*
* Licensed under the Academic Free License version 2.1
*
#include <windows.h>
#include <ws2tcpip.h>
#include <wincrypt.h>
+#include <iphlpapi.h>
-/* Declarations missing in mingw's headers */
+/* Declarations missing in mingw's and windows sdk 7.0 headers */
extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
#endif
}
+/**
+ * @brief return peer process id from tcp handle for localhost connections
+ * @param handle tcp socket descriptor
+ * @return process id or 0 in case the process id could not be fetched
+ */
+static dbus_pid_t
+_dbus_get_peer_pid_from_tcp_handle (int handle)
+{
+ struct sockaddr_storage addr;
+ socklen_t len = sizeof (addr);
+ int peer_port;
+
+ dbus_pid_t result;
+ DWORD size;
+ MIB_TCPTABLE_OWNER_PID *tcp_table;
+ DWORD i;
+ dbus_bool_t is_localhost = FALSE;
+
+ getpeername (handle, (struct sockaddr *) &addr, &len);
+
+ if (addr.ss_family == AF_INET)
+ {
+ struct sockaddr_in *s = (struct sockaddr_in *) &addr;
+ peer_port = ntohs (s->sin_port);
+ is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
+ }
+ else if (addr.ss_family == AF_INET6)
+ {
+ _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
+ return 0;
+ /*
+ struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
+ peer_port = ntohs (s->sin6_port);
+ is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
+ _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
+ */
+ }
+ else
+ {
+ _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
+ return 0;
+ }
+
+ if (!is_localhost)
+ {
+ _dbus_verbose ("could not fetch process id from remote process\n");
+ return 0;
+ }
+
+ if (peer_port == 0)
+ {
+ _dbus_verbose
+ ("Error not been able to fetch tcp peer port from connection\n");
+ return 0;
+ }
+
+ if ((result =
+ GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
+ {
+ tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
+ if (tcp_table == NULL)
+ {
+ _dbus_verbose ("Error allocating memory\n");
+ return 0;
+ }
+ }
+
+ if ((result = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
+ {
+ _dbus_verbose ("Error fetching tcp table %d\n", result);
+ dbus_free (tcp_table);
+ return 0;
+ }
+
+ result = 0;
+ for (i = 0; i < tcp_table->dwNumEntries; i++)
+ {
+ MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
+ int local_port = ntohs (p->dwLocalPort);
+ if (p->dwState == MIB_TCP_STATE_ESTAB && local_port == peer_port)
+ result = p->dwOwningPid;
+ }
+
+ _dbus_verbose ("got pid %d\n", result);
+ dbus_free (tcp_table);
+ return result;
+}
/* Convert GetLastError() to a dbus error. */
const char*
char buf[1024];
int bufsize;
int len;
+ va_list args_copy;
bufsize = sizeof (buf);
- len = _vsnprintf (buf, bufsize - 1, format, args);
+ DBUS_VA_COPY (args_copy, args);
+ len = _vsnprintf (buf, bufsize - 1, format, args_copy);
+ va_end (args_copy);
while (len == -1) /* try again */
{
bufsize *= 2;
p = malloc (bufsize);
- len = _vsnprintf (p, bufsize - 1, format, args);
+
+ if (p == NULL)
+ return -1;
+
+ DBUS_VA_COPY (args_copy, args);
+ len = _vsnprintf (p, bufsize - 1, format, args_copy);
+ va_end (args_copy);
free (p);
}
return _dbus_getpid ();
}
-
#ifndef DBUS_WINCE
/** Gets our SID
- * @param points to sid buffer, need to be freed with LocalFree()
+ * @param sid points to sid buffer, need to be freed with LocalFree()
+ * @param process_id the process id for which the sid should be returned
* @returns process sid
*/
static dbus_bool_t
-_dbus_getsid(char **sid)
+_dbus_getsid(char **sid, dbus_pid_t process_id)
{
HANDLE process_token = INVALID_HANDLE_VALUE;
TOKEN_USER *token_user = NULL;
DWORD n;
PSID psid;
int retval = FALSE;
-
- if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
+ HANDLE process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
+
+ if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
{
_dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
goto failed;
retval = TRUE;
failed:
+ CloseHandle (process_handle);
if (process_token != INVALID_HANDLE_VALUE)
CloseHandle (process_token);
* Creates a full-duplex pipe (as in socketpair()).
* Sets both ends of the pipe nonblocking.
*
- * @todo libdbus only uses this for the debug-pipe server, so in
- * principle it could be in dbus-sysdeps-util.c, except that
- * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
- * debug-pipe server is used.
- *
* @param fd1 return location for one end
* @param fd2 return location for the other end
* @param blocking #TRUE if pipe should be blocking
struct sockaddr_in saddr;
int len;
u_long arg;
- fd_set read_set, write_set;
- struct timeval tv;
- int res;
_dbus_win_startup_winsock ();
msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
for (i = 0; i < n_fds; i++)
{
- static dbus_bool_t warned = FALSE;
DBusPollFD *fdp = &fds[i];
msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
for (i = 0; i < n_fds; i++)
{
- static dbus_bool_t warned = FALSE;
DBusPollFD *fdp = &fds[i];
* a byte was read, not whether we got valid credentials. On some
* systems, such as Linux, reading/writing the byte isn't actually
* required, but we do it anyway just to avoid multiple codepaths.
- *
+ *
* Fails if no byte is available, so you must select() first.
*
* The point of the byte is that on some systems we have to
{
int bytes_read = 0;
DBusString buf;
-
+
+ char *sid = NULL;
+ dbus_pid_t pid;
+ int retval = FALSE;
+
// could fail due too OOM
- if (_dbus_string_init(&buf))
+ if (_dbus_string_init (&buf))
{
- bytes_read = _dbus_read_socket(handle, &buf, 1 );
+ bytes_read = _dbus_read_socket (handle, &buf, 1 );
if (bytes_read > 0)
- _dbus_verbose("got one zero byte from server");
+ _dbus_verbose ("got one zero byte from server\n");
- _dbus_string_free(&buf);
+ _dbus_string_free (&buf);
}
- _dbus_credentials_add_from_current_process (credentials);
- _dbus_verbose("FIXME: get faked credentials from current process");
+ pid = _dbus_get_peer_pid_from_tcp_handle (handle);
+ if (pid == 0)
+ return TRUE;
- return TRUE;
+ _dbus_credentials_add_pid (credentials, pid);
+
+ if (_dbus_getsid (&sid, pid))
+ {
+ if (!_dbus_credentials_add_windows_sid (credentials, sid))
+ goto out;
+ }
+
+ retval = TRUE;
+
+out:
+ if (sid)
+ LocalFree (sid);
+
+ return retval;
}
/**
dbus_bool_t retval = FALSE;
char *sid = NULL;
- if (!_dbus_getsid(&sid))
+ if (!_dbus_getsid(&sid, _dbus_getpid()))
goto failed;
- if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
+ if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
goto failed;
if (!_dbus_credentials_add_windows_sid (credentials,sid))
dbus_bool_t retval = FALSE;
char *sid = NULL;
- if (!_dbus_getsid(&sid))
+ if (!_dbus_getsid(&sid, _dbus_getpid()))
return FALSE;
retval = _dbus_string_append (str,sid);
/**
- * Get current time, as in gettimeofday().
+ * Get current time, as in gettimeofday(). Never uses the monotonic
+ * clock.
*
* @param tv_sec return location for number of seconds
* @param tv_usec return location for number of microseconds
*/
void
-_dbus_get_current_time (long *tv_sec,
- long *tv_usec)
+_dbus_get_real_time (long *tv_sec,
+ long *tv_usec)
{
FILETIME ft;
dbus_uint64_t time64;
*tv_usec = time64 % 1000000;
}
+/**
+ * Get current time, as in gettimeofday(). Use the monotonic clock if
+ * available, to avoid problems when the system time changes.
+ *
+ * @param tv_sec return location for number of seconds
+ * @param tv_usec return location for number of microseconds
+ */
+void
+_dbus_get_monotonic_time (long *tv_sec,
+ long *tv_usec)
+{
+ /* no implementation yet, fall back to wall-clock time */
+ _dbus_get_real_time (tv_sec, tv_usec);
+}
/**
* signal (SIGPIPE, SIG_IGN);
return TRUE;
}
-/* Forward declaration of prototype used in next function */
-static dbus_bool_t
-_dbus_get_install_root(char *prefix, int len);
-
/*
* replaces the term DBUS_PREFIX in configure_time_path by the
* current dbus installation directory. On unix this function is a noop
// named shm for dbus adress info (per user)
static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
-dbus_bool_t
-_dbus_get_install_root(char *prefix, int len);
-
static dbus_bool_t
_dbus_get_install_root_as_hash(DBusString *out)
{
return TRUE;
}
-
static dbus_bool_t
-_dbus_get_shm_address(DBusString *out,const char *scope)
+_dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
{
_dbus_string_init(out);
- _dbus_string_append(out,cDBusDaemonAddressInfo);
+ _dbus_string_append(out,basestring);
if (!scope)
{
return TRUE;
}
- else if (strcmp(scope,"install-path") == 0)
+ else if (strcmp(scope,"*install-path") == 0
+ // for 1.3 compatibility
+ || strcmp(scope,"install-path") == 0)
{
DBusString temp;
-
if (!_dbus_get_install_root_as_hash(&temp))
{
_dbus_string_free(out);
_dbus_string_append(out,"-");
_dbus_string_append(out,_dbus_string_get_const_data(&temp));
_dbus_string_free(&temp);
- return TRUE;
}
- else if (strlen(scope) > 0)
+ else if (strcmp(scope,"*user") == 0)
{
_dbus_string_append(out,"-");
- _dbus_string_append(out,scope);
- return TRUE;
+ if (!_dbus_append_user_from_current_process(out))
+ {
+ _dbus_string_free(out);
+ return FALSE;
+ }
}
- else
+ else if (strlen(scope) > 0)
{
+ _dbus_string_append(out,"-");
+ _dbus_string_append(out,scope);
return TRUE;
}
+ return TRUE;
}
static dbus_bool_t
-_dbus_get_mutex_name(DBusString *out,const char *scope)
+_dbus_get_shm_name (DBusString *out,const char *scope)
{
- _dbus_string_init(out);
- _dbus_string_append(out,cDBusDaemonMutex);
+ return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
+}
- if (!scope)
- {
- return TRUE;
- }
- else if (strcmp(scope,"install-path") == 0)
- {
- DBusString temp;
+static dbus_bool_t
+_dbus_get_mutex_name (DBusString *out,const char *scope)
+{
+ return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
+}
- if (!_dbus_get_install_root_as_hash(&temp))
- {
- _dbus_string_free(out);
- return FALSE;
- }
+dbus_bool_t
+_dbus_daemon_is_session_bus_address_published (const char *scope)
+{
+ HANDLE lock;
+ DBusString mutex_name;
- _dbus_string_append(out,"-");
- _dbus_string_append(out,_dbus_string_get_const_data(&temp));
- _dbus_string_free(&temp);
- return TRUE;
- }
- else if (strlen(scope) > 0)
+ if (!_dbus_get_mutex_name(&mutex_name,scope))
{
- _dbus_string_append(out,"-");
- _dbus_string_append(out,scope);
- return TRUE;
+ _dbus_string_free( &mutex_name );
+ return FALSE;
}
- else
+
+ if (hDBusDaemonMutex)
+ return TRUE;
+
+ // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
+ lock = _dbus_global_lock( cUniqueDBusInitMutex );
+
+ // we use CreateMutex instead of OpenMutex because of possible race conditions,
+ // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
+ hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
+
+ /* The client uses mutex ownership to detect a running server, so the server should do so too.
+ Fortunally the client deletes the mutex in the lock protected area, so checking presence
+ will work too. */
+
+ _dbus_global_unlock( lock );
+
+ _dbus_string_free( &mutex_name );
+
+ if (hDBusDaemonMutex == NULL)
+ return FALSE;
+ if (GetLastError() == ERROR_ALREADY_EXISTS)
{
+ CloseHandle(hDBusDaemonMutex);
+ hDBusDaemonMutex = NULL;
return TRUE;
}
+ // mutex wasn't created before, so return false.
+ // We leave the mutex name allocated for later reusage
+ // in _dbus_daemon_publish_session_bus_address.
+ return FALSE;
}
dbus_bool_t
{
HANDLE lock;
char *shared_addr = NULL;
- DWORD ret;
- char addressInfo[1024];
- DBusString shm_address;
- DBusString mutex_address;
+ DBusString shm_name;
+ DBusString mutex_name;
_dbus_assert (address);
- if (!_dbus_get_mutex_name(&mutex_address,scope))
+ if (!_dbus_get_mutex_name(&mutex_name,scope))
{
- _dbus_string_free( &mutex_address );
+ _dbus_string_free( &mutex_name );
return FALSE;
}
- // before _dbus_global_lock to keep correct lock/release order
- hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_address) );
- ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
- if ( ret != WAIT_OBJECT_0 ) {
- _dbus_warn("Could not lock mutex %s (return code %d). daemon already running? Bus address not published.\n", _dbus_string_get_const_data(&mutex_address), ret );
- return FALSE;
- }
+ // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
+ lock = _dbus_global_lock( cUniqueDBusInitMutex );
- if (!_dbus_get_shm_address(&shm_address,scope))
+ if (!hDBusDaemonMutex)
{
- _dbus_string_free( &mutex_address );
- _dbus_string_free( &shm_address );
+ hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
+ }
+ _dbus_string_free( &mutex_name );
+
+ // acquire the mutex
+ if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
+ {
+ _dbus_global_unlock( lock );
+ CloseHandle( hDBusDaemonMutex );
return FALSE;
}
- // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
- lock = _dbus_global_lock( cUniqueDBusInitMutex );
+ if (!_dbus_get_shm_name(&shm_name,scope))
+ {
+ _dbus_string_free( &shm_name );
+ _dbus_global_unlock( lock );
+ return FALSE;
+ }
// create shm
hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
- 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_address) );
+ 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
_dbus_assert( hDBusSharedMem );
shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
UnmapViewOfFile( shared_addr );
_dbus_global_unlock( lock );
- _dbus_string_free( &shm_address );
- _dbus_string_free( &mutex_address );
+ _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
+
+ _dbus_string_free( &shm_name );
return TRUE;
}
}
static dbus_bool_t
-_dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_address)
+_dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
{
HANDLE sharedMem;
char *shared_addr;
// read shm
for(i=0;i<20;++i) {
// we know that dbus-daemon is available, so we wait until shm is available
- sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_address));
+ sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
if( sharedMem == 0 )
Sleep( 100 );
if ( sharedMem != 0)
}
static dbus_bool_t
-_dbus_daemon_already_runs (DBusString *address, DBusString *shm_address, const char *scope)
+_dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
{
HANDLE lock;
HANDLE daemon;
- DBusString mutex_address;
+ DBusString mutex_name;
dbus_bool_t bRet = TRUE;
- // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
- lock = _dbus_global_lock( cUniqueDBusInitMutex );
-
- if (!_dbus_get_mutex_name(&mutex_address,scope))
+ if (!_dbus_get_mutex_name(&mutex_name,scope))
{
- _dbus_string_free( &mutex_address );
+ _dbus_string_free( &mutex_name );
return FALSE;
}
+ // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
+ lock = _dbus_global_lock( cUniqueDBusInitMutex );
+
// do checks
- daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_address) );
+ daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
{
ReleaseMutex (daemon);
CloseHandle (daemon);
_dbus_global_unlock( lock );
- _dbus_string_free( &mutex_address );
+ _dbus_string_free( &mutex_name );
return FALSE;
}
// read shm
- bRet = _dbus_get_autolaunch_shm( address, shm_address );
+ bRet = _dbus_get_autolaunch_shm( address, shm_name );
// cleanup
CloseHandle ( daemon );
_dbus_global_unlock( lock );
- _dbus_string_free( &mutex_address );
+ _dbus_string_free( &mutex_name );
return bRet;
}
char dbus_exe_path[MAX_PATH];
char dbus_args[MAX_PATH * 2];
const char * daemon_name = DBUS_DAEMON_NAME ".exe";
- DBusString shm_address;
-
- mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
+ DBusString shm_name;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
- if (!_dbus_get_shm_address(&shm_address,scope))
+ if (!_dbus_get_shm_name(&shm_name,scope))
{
- dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm address");
+ dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
return FALSE;
}
- if (_dbus_daemon_already_runs(address,&shm_address,scope))
+ mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
+
+ if (_dbus_daemon_already_runs(address,&shm_name,scope))
{
- _dbus_verbose("found already running dbus daemon\n");
+ _dbus_verbose( "found running dbus daemon at %s\n",
+ _dbus_string_get_const_data (&shm_name) );
retval = TRUE;
goto out;
}
if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
{
- printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
- printf ("or start the daemon manually\n\n");
- goto out;
+ // Look in directory containing dbus shared library
+ HMODULE hmod;
+ char dbus_module_path[MAX_PATH];
+ DWORD rc;
+
+ _dbus_verbose( "did not found dbus daemon executable on default search path, "
+ "trying path where dbus shared library is located");
+
+ hmod = _dbus_win_get_dll_hmodule();
+ rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
+ if (rc <= 0)
+ {
+ dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
+ retval = FALSE;
+ goto out;
+ }
+ else
+ {
+ char *ext_idx = strrchr(dbus_module_path, '\\');
+ if (ext_idx)
+ *ext_idx = '\0';
+ if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
+ {
+ dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
+ retval = FALSE;
+ printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
+ printf ("or start the daemon manually\n\n");
+ goto out;
+ }
+ _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
+ }
}
+
// Create process
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
{
CloseHandle (pi.hThread);
CloseHandle (pi.hProcess);
- retval = _dbus_get_autolaunch_shm( address, &shm_address );
+ retval = _dbus_get_autolaunch_shm( address, &shm_name );
if (retval == FALSE)
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
}
else
{
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
- retval == FALSE;
+ retval = FALSE;
}
out:
return TRUE;
}
-_DBUS_DEFINE_GLOBAL_LOCK (atomic);
-
/**
* Atomically increments an integer
*
}
/**
+ * Atomically get the value of an integer. It may change at any time
+ * thereafter, so this is mostly only useful for assertions.
+ *
+ * @param atomic pointer to the integer to get
+ * @returns the value at this moment
+ */
+dbus_int32_t
+_dbus_atomic_get (DBusAtomic *atomic)
+{
+ /* In this situation, GLib issues a MemoryBarrier() and then returns
+ * atomic->value. However, mingw from mingw.org (not to be confused with
+ * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
+ * headers, so we have to get a memory barrier some other way.
+ *
+ * InterlockedIncrement is older, and is documented on MSDN to be a full
+ * memory barrier, so let's use that.
+ */
+ long dummy = 0;
+
+ InterlockedExchange (&dummy, 1);
+
+ return atomic->value;
+}
+
+/**
* 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.
* @param len length of buffer
* @returns #FALSE on failure
*/
-static dbus_bool_t
+dbus_bool_t
_dbus_get_install_root(char *prefix, int len)
{
//To find the prefix, we cut the filename and also \bin\ if present
- char* p = 0;
- int i;
DWORD pathLength;
char *lastSlash;
SetLastError( 0 );
{
DBusString homedir;
DBusString dotdir;
- dbus_uid_t uid;
const char *homepath;
const char *homedrive;
return TRUE;
}
+/**
+ * Checks whether the filename is an absolute path
+ *
+ * @param filename the filename
+ * @returns #TRUE if an absolute path
+ */
+dbus_bool_t
+_dbus_path_is_absolute (const DBusString *filename)
+{
+ if (_dbus_string_get_length (filename) > 0)
+ return _dbus_string_get_byte (filename, 1) == ':'
+ || _dbus_string_get_byte (filename, 0) == '\\'
+ || _dbus_string_get_byte (filename, 0) == '/';
+ else
+ return FALSE;
+}
+
+dbus_bool_t
+_dbus_check_setuid (void)
+{
+ return FALSE;
+}
+
/** @} end of sysdeps-win */
/* tests in dbus-sysdeps-util.c */