Use typedef DBusSocket for sockets fd's to avoid conversion warnings.

[smcv: remove unneeded and invalid dbus-sysdeps.h from public header;
make prototype of _dbus_socketpair() consistent; undo conversion
of getaddrinfo result from int to SOCKET; don't call
_dbus_return_val_if_fail() from internal function]

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=89444

13 files changed, 98 insertions, 76 deletions

diff --git a/dbus/dbus-mainloop.c b/dbus/dbus-mainloop.c
index 25019678..a02b29f6 100644
--- a/dbus/dbus-mainloop.c
+++ b/dbus/dbus-mainloop.c
@@ -270,11 +270,11 @@ dbus_bool_t
 _dbus_loop_add_watch (DBusLoop  *loop,
                       DBusWatch *watch)
 {
-  int fd;
+  DBusSocket fd;
   DBusList **watches;
 
-  fd = dbus_watch_get_socket (watch);
-  _dbus_assert (fd != -1);
+  fd = _dbus_watch_get_socket (watch);
+  _dbus_assert (fd != DBUS_SOCKET_INVALID);
 
   watches = ensure_watch_table_entry (loop, fd);
 
@@ -323,13 +323,13 @@ _dbus_loop_remove_watch (DBusLoop         *loop,
 {
   DBusList **watches;
   DBusList *link;
-  int fd;
+  DBusSocket fd;
 
   /* This relies on people removing watches before they invalidate them,
    * which has been safe since fd.o #33336 was fixed. Assert about it
    * so we don't regress. */
-  fd = dbus_watch_get_socket (watch);
-  _dbus_assert (fd != -1);
+  fd = _dbus_watch_get_socket (watch);
+  _dbus_assert (fd != DBUS_SOCKET_INVALID);
 
   watches = _dbus_hash_table_lookup_int (loop->watches, fd);
 
diff --git a/dbus/dbus-nonce.c b/dbus/dbus-nonce.c
index c46f15ac..3f56a2f7 100644
--- a/dbus/dbus-nonce.c
+++ b/dbus/dbus-nonce.c
@@ -148,10 +148,10 @@ _dbus_read_nonce (const DBusString *fname, DBusString *nonce, DBusError* error)
   return TRUE;
 }
 
-int
-_dbus_accept_with_noncefile (int listen_fd, const DBusNonceFile *noncefile)
+DBusSocket
+_dbus_accept_with_noncefile (DBusSocket listen_fd, const DBusNonceFile *noncefile)
 {
-  int fd;
+  DBusSocket fd;
   DBusString nonce;
 
   _dbus_assert (noncefile != NULL);
@@ -437,7 +437,7 @@ _dbus_noncefile_get_path (const DBusNonceFile *noncefile)
  * and matches the nonce from the given nonce file
  */
 dbus_bool_t
-_dbus_noncefile_check_nonce (int fd,
+_dbus_noncefile_check_nonce (DBusSocket fd,
                              const DBusNonceFile *noncefile,
                              DBusError* error)
 {
diff --git a/dbus/dbus-nonce.h b/dbus/dbus-nonce.h
index 474ea728..26308fdd 100644
--- a/dbus/dbus-nonce.h
+++ b/dbus/dbus-nonce.h
@@ -27,6 +27,7 @@
 #include <dbus/dbus-types.h>
 #include <dbus/dbus-errors.h>
 #include <dbus/dbus-string.h>
+#include <dbus/dbus-sysdeps.h>
 
 DBUS_BEGIN_DECLS
 
@@ -46,13 +47,13 @@ dbus_bool_t _dbus_noncefile_create (DBusNonceFile *noncefile,
 dbus_bool_t _dbus_noncefile_delete (DBusNonceFile *noncefile,
                                     DBusError *error);
 
-dbus_bool_t _dbus_noncefile_check_nonce (int fd,
+dbus_bool_t _dbus_noncefile_check_nonce (DBusSocket fd,
                                          const DBusNonceFile *noncefile,
                                          DBusError *error);
 
 const DBusString* _dbus_noncefile_get_path (const DBusNonceFile *noncefile);
 
-int _dbus_accept_with_noncefile (int listen_fd,
+DBusSocket _dbus_accept_with_noncefile(DBusSocket listen_fd,
                                  const DBusNonceFile *noncefile);
 
 // shared
diff --git a/dbus/dbus-server-debug-pipe.c b/dbus/dbus-server-debug-pipe.c
index 32d62dd8..0c86d14d 100644
--- a/dbus/dbus-server-debug-pipe.c
+++ b/dbus/dbus-server-debug-pipe.c
@@ -211,7 +211,7 @@ _dbus_transport_debug_pipe_new (const char     *server_name,
   DBusTransport *client_transport;
   DBusTransport *server_transport;
   DBusConnection *connection;
-  int client_fd, server_fd;
+  DBusSocket client_fd, server_fd;
   DBusServer *server;
   DBusString address;
   
diff --git a/dbus/dbus-server-socket.c b/dbus/dbus-server-socket.c
index 70367c79..54544dcf 100644
--- a/dbus/dbus-server-socket.c
+++ b/dbus/dbus-server-socket.c
@@ -51,7 +51,7 @@ struct DBusServerSocket
 {
   DBusServer base;   /**< Parent class members. */
   int n_fds;         /**< Number of active file handles */
-  int *fds;          /**< File descriptor or -1 if disconnected. */
+  DBusSocket *fds;   /**< File descriptor or DBUS_SOCKET_INVALID if disconnected. */
   DBusWatch **watch; /**< File descriptor watch. */
   char *socket_name; /**< Name of domain socket, to unlink if appropriate */
   DBusNonceFile *noncefile; /**< Nonce file used to authenticate clients */
@@ -182,11 +182,11 @@ socket_handle_watch (DBusWatch    *watch,
 
   if (flags & DBUS_WATCH_READABLE)
     {
-      int client_fd;
-      int listen_fd;
+      DBusSocket client_fd;
+      DBusSocket listen_fd;
       int saved_errno;
 
-      listen_fd = dbus_watch_get_socket (watch);
+      listen_fd = _dbus_watch_get_socket (watch);
 
       if (socket_server->noncefile)
           client_fd = _dbus_accept_with_noncefile (listen_fd, socket_server->noncefile);
@@ -195,7 +195,7 @@ socket_handle_watch (DBusWatch    *watch,
 
       saved_errno = _dbus_save_socket_errno ();
 
-      if (client_fd < 0)
+      if (client_fd == DBUS_SOCKET_INVALID)
         {
           /* EINTR handled for us */
 
@@ -243,7 +243,7 @@ socket_disconnect (DBusServer *server)
         }
 
       _dbus_close_socket (socket_server->fds[i], NULL);
-      socket_server->fds[i] = -1;
+      socket_server->fds[i] = DBUS_SOCKET_INVALID;
     }
 
   if (socket_server->socket_name != NULL)
@@ -280,7 +280,7 @@ static const DBusServerVTable socket_vtable = {
  *
  */
 DBusServer*
-_dbus_server_new_for_socket (int              *fds,
+_dbus_server_new_for_socket (DBusSocket       *fds,
                              int               n_fds,
                              const DBusString *address,
                              DBusNonceFile    *noncefile)
@@ -295,7 +295,7 @@ _dbus_server_new_for_socket (int              *fds,
 
   socket_server->noncefile = noncefile;
 
-  socket_server->fds = dbus_new (int, n_fds);
+  socket_server->fds = dbus_new (DBusSocket, n_fds);
   if (!socket_server->fds)
     goto failed_0;
 
@@ -396,7 +396,7 @@ _dbus_server_new_for_tcp_socket (const char     *host,
                                  dbus_bool_t    use_nonce)
 {
   DBusServer *server;
-  int *listen_fds = NULL;
+  DBusSocket *listen_fds = NULL;
   int nlisten_fds = 0, i;
   DBusString address;
   DBusString host_str;
diff --git a/dbus/dbus-server-socket.h b/dbus/dbus-server-socket.h
index 44e11e85..cdb62840 100644
--- a/dbus/dbus-server-socket.h
+++ b/dbus/dbus-server-socket.h
@@ -29,7 +29,7 @@
 
 DBUS_BEGIN_DECLS
 
-DBusServer* _dbus_server_new_for_socket           (int              *fds,
+DBusServer* _dbus_server_new_for_socket           (DBusSocket       *fds,
                                                    int               n_fds,
                                                    const DBusString *address,
                                                    DBusNonceFile    *noncefile);
diff --git a/dbus/dbus-server-unix.c b/dbus/dbus-server-unix.c
index fcfe27f7..e94bc2ed 100644
--- a/dbus/dbus-server-unix.c
+++ b/dbus/dbus-server-unix.c
@@ -289,7 +289,7 @@ _dbus_server_new_for_domain_socket (const char     *path,
                                     DBusError      *error)
 {
   DBusServer *server;
-  int listen_fd;
+  DBusSocket listen_fd;
   DBusString address;
   char *path_copy;
   DBusString path_str;
diff --git a/dbus/dbus-spawn-win.c b/dbus/dbus-spawn-win.c
index f7b56d19..c2212a90 100644
--- a/dbus/dbus-spawn-win.c
+++ b/dbus/dbus-spawn-win.c
@@ -77,8 +77,8 @@ struct DBusBabysitter
     char **envp;
 
     HANDLE child_handle;
-    int socket_to_babysitter;	/* Connection to the babysitter thread */
-    int socket_to_main;
+    DBusSocket socket_to_babysitter;	/* Connection to the babysitter thread */
+    DBusSocket socket_to_main;
 
     DBusWatchList *watches;
     DBusWatch *sitter_watch;
@@ -171,10 +171,10 @@ close_socket_to_babysitter (DBusBabysitter *sitter)
       sitter->sitter_watch = NULL;
     }
 
-  if (sitter->socket_to_babysitter != -1)
+  if (sitter->socket_to_babysitter != DBUS_SOCKET_INVALID)
     {
       _dbus_close_socket (sitter->socket_to_babysitter, NULL);
-      sitter->socket_to_babysitter = -1;
+      sitter->socket_to_babysitter = DBUS_SOCKET_INVALID;
     }
 }
 
@@ -198,10 +198,10 @@ _dbus_babysitter_unref (DBusBabysitter *sitter)
     {
       close_socket_to_babysitter (sitter);
 
-      if (sitter->socket_to_main != -1)
+      if (sitter->socket_to_main != DBUS_SOCKET_INVALID)
         {
           _dbus_close_socket (sitter->socket_to_main, NULL);
-          sitter->socket_to_main = -1;
+          sitter->socket_to_main = DBUS_SOCKET_INVALID;
         }
 
       PING();
diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index ab7efc25..bb4724b2 100644
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -274,7 +274,7 @@ _dbus_write_socket (int               fd,
  * @returns number of bytes appended to string
  */
 int
-_dbus_read_socket_with_unix_fds (int               fd,
+_dbus_read_socket_with_unix_fds (DBusSocket        fd,
                                  DBusString       *buffer,
                                  int               count,
                                  int              *fds,
@@ -1807,7 +1807,7 @@ out:
  * @returns #TRUE on success
  */
 dbus_bool_t
-_dbus_read_credentials_socket  (int              client_fd,
+_dbus_read_credentials_socket  (DBusSocket       client_fd,
                                 DBusCredentials *credentials,
                                 DBusError       *error)
 {
@@ -3287,13 +3287,13 @@ _dbus_print_backtrace (void)
  * @returns #FALSE on failure (if error is set)
  */
 dbus_bool_t
-_dbus_socketpair (int        *fd1,
-                  int        *fd2,
+_dbus_socketpair (DBusSocket *fd1,
+                  DBusSocket *fd2,
                   dbus_bool_t blocking,
                   DBusError  *error)
 {
 #ifdef HAVE_SOCKETPAIR
-  int fds[2];
+  DBusSocket fds[2];
   int retval;
 
 #ifdef SOCK_CLOEXEC
diff --git a/dbus/dbus-sysdeps-win.c b/dbus/dbus-sysdeps-win.c
index 6e59c5ee..f3d41ebc 100644
--- a/dbus/dbus-sysdeps-win.c
+++ b/dbus/dbus-sysdeps-win.c
@@ -52,7 +52,6 @@
 #include "dbus-credentials.h"
 
 #include <windows.h>
-#include <ws2tcpip.h>
 #include <wincrypt.h>
 #include <iphlpapi.h>
 
@@ -376,7 +375,7 @@ _dbus_win_free_error_string (char *string)
  */
 
 int
-_dbus_read_socket (int               fd,
+_dbus_read_socket (DBusSocket        fd,
                    DBusString       *buffer,
                    int               count)
 {
@@ -446,7 +445,7 @@ _dbus_read_socket (int               fd,
  * @returns the number of bytes written or -1 on error
  */
 int
-_dbus_write_socket (int               fd,
+_dbus_write_socket (DBusSocket        fd,
                     const DBusString *buffer,
                     int               start,
                     int               len)
@@ -490,7 +489,7 @@ _dbus_write_socket (int               fd,
  * @returns #FALSE if error set
  */
 dbus_bool_t
-_dbus_close_socket (int        fd,
+_dbus_close_socket (DBusSocket fd,
                     DBusError *error)
 {
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
@@ -580,7 +579,7 @@ _dbus_set_fd_nonblocking (int             handle,
  * @returns total bytes written from both buffers, or -1 on error
  */
 int
-_dbus_write_socket_two (int               fd,
+_dbus_write_socket_two (DBusSocket        fd,
                         const DBusString *buffer1,
                         int               start1,
                         int               len1,
@@ -644,9 +643,9 @@ _dbus_write_socket_two (int               fd,
 }
 
 dbus_bool_t
-_dbus_socket_is_invalid (int fd)
+_dbus_socket_is_invalid (DBusSocket fd)
 {
-    return fd == INVALID_SOCKET ? TRUE : FALSE;
+    return fd == DBUS_SOCKET_INVALID ? TRUE : FALSE;
 }
 
 #if 0
@@ -1055,10 +1054,10 @@ failed:
  * @param blocking #TRUE if pair should be blocking
  * @param error error return
  * @returns #FALSE on failure (if error is set)
-*/
+ */
 dbus_bool_t
-_dbus_socketpair (int        *fd1,
-                  int        *fd2,
+_dbus_socketpair (DBusSocket *fd1,
+                  DBusSocket *fd2,
                   dbus_bool_t blocking,
                   DBusError  *error)
 {
@@ -1074,7 +1073,7 @@ _dbus_socketpair (int        *fd1,
     }
 
   temp = socket (AF_INET, SOCK_STREAM, 0);
-  if (temp == INVALID_SOCKET)
+  if (temp == DBUS_SOCKET_INVALID)
     {
       DBUS_SOCKET_SET_ERRNO ();
       goto out0;
@@ -1105,7 +1104,7 @@ _dbus_socketpair (int        *fd1,
     }
 
   socket1 = socket (AF_INET, SOCK_STREAM, 0);
-  if (socket1 == INVALID_SOCKET)
+  if (socket1 == DBUS_SOCKET_INVALID)
     {
       DBUS_SOCKET_SET_ERRNO ();
       goto out0;
@@ -1118,7 +1117,7 @@ _dbus_socketpair (int        *fd1,
     }
 
   socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
-  if (socket2 == INVALID_SOCKET)
+  if (socket2 == DBUS_SOCKET_INVALID)
     {
       DBUS_SOCKET_SET_ERRNO ();
       goto out1;
@@ -1509,7 +1508,7 @@ _dbus_connect_tcp_socket_with_nonce (const char     *host,
                                      const char     *noncefile,
                                      DBusError      *error)
 {
-  int fd = -1, res;
+  SOCKET fd = DBUS_SOCKET_INVALID, res;
   struct addrinfo hints;
   struct addrinfo *ai, *tmp;
 
@@ -1556,7 +1555,7 @@ _dbus_connect_tcp_socket_with_nonce (const char     *host,
   tmp = ai;
   while (tmp)
     {
-      if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
+      if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == DBUS_SOCKET_INVALID)
         {
           DBUS_SOCKET_SET_ERRNO ();
           dbus_set_error (error,
@@ -1581,7 +1580,7 @@ _dbus_connect_tcp_socket_with_nonce (const char     *host,
     }
   freeaddrinfo(ai);
 
-  if (fd == -1)
+  if (fd == DBUS_SOCKET_INVALID)
     {
       dbus_set_error (error,
                       _dbus_error_from_errno (errno),
@@ -1645,10 +1644,11 @@ _dbus_listen_tcp_socket (const char     *host,
                          const char     *port,
                          const char     *family,
                          DBusString     *retport,
-                         int           **fds_p,
+                         DBusSocket    **fds_p,
                          DBusError      *error)
 {
-  int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
+  DBusSocket *listen_fd = NULL;
+  int nlisten_fd = 0, res, i, port_num = -1;
   struct addrinfo hints;
   struct addrinfo *ai, *tmp;
 
@@ -1708,8 +1708,8 @@ _dbus_listen_tcp_socket (const char     *host,
   tmp = ai;
   while (tmp)
     {
-      int fd = -1, *newlisten_fd;
-      if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
+      DBusSocket fd = DBUS_SOCKET_INVALID, *newlisten_fd;
+      if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == DBUS_SOCKET_INVALID)
         {
           DBUS_SOCKET_SET_ERRNO ();
           dbus_set_error (error,
@@ -1851,10 +1851,10 @@ _dbus_listen_tcp_socket (const char     *host,
  * @param listen_fd the listen file descriptor
  * @returns the connection fd of the client, or -1 on error
  */
-int
-_dbus_accept  (int listen_fd)
+DBusSocket
+_dbus_accept  (DBusSocket listen_fd)
 {
-  int client_fd;
+  DBusSocket client_fd;
 
  retry:
   client_fd = accept (listen_fd, NULL, NULL);
@@ -1875,8 +1875,8 @@ _dbus_accept  (int listen_fd)
 
 
 dbus_bool_t
-_dbus_send_credentials_socket (int            handle,
-                        DBusError      *error)
+_dbus_send_credentials_socket (DBusSocket      handle,
+                               DBusError      *error)
 {
 /* FIXME: for the session bus credentials shouldn't matter (?), but
  * for the system bus they are presumably essential. A rough outline
@@ -1952,7 +1952,7 @@ again:
  * @returns #TRUE on success
  */
 dbus_bool_t
-_dbus_read_credentials_socket  (int              handle,
+_dbus_read_credentials_socket  (DBusSocket       handle,
                                 DBusCredentials *credentials,
                                 DBusError       *error)
 {
diff --git a/dbus/dbus-sysdeps.h b/dbus/dbus-sysdeps.h
index bbbf7082..f5a9b4e2 100644
--- a/dbus/dbus-sysdeps.h
+++ b/dbus/dbus-sysdeps.h
@@ -62,6 +62,10 @@
 #include "dbus-sysdeps-wince-glue.h"
 #endif
 
+#ifdef DBUS_WIN
+#include <ws2tcpip.h>
+#endif
+
 DBUS_BEGIN_DECLS
 
 #ifdef DBUS_WIN
@@ -128,20 +132,27 @@ typedef unsigned long dbus_gid_t;
  *        will be checked by the compiler.
  * 
  */
+#ifndef DBUS_WIN
+typedef int DBusSocket;
+# define DBUS_SOCKET_INVALID -1
+#else
+typedef SOCKET DBusSocket;
+# define DBUS_SOCKET_INVALID INVALID_SOCKET
+#endif
 
 DBUS_PRIVATE_EXPORT
-dbus_bool_t _dbus_close_socket     (int               fd,
+dbus_bool_t _dbus_close_socket     (DBusSocket        fd,
                                     DBusError        *error);
 DBUS_PRIVATE_EXPORT
-int         _dbus_read_socket      (int               fd,
+int         _dbus_read_socket      (DBusSocket        fd,
                                     DBusString       *buffer,
                                     int               count);
 DBUS_PRIVATE_EXPORT
-int         _dbus_write_socket     (int               fd,
+int         _dbus_write_socket     (DBusSocket        fd,
                                     const DBusString *buffer,
                                     int               start,
                                     int               len);
-int         _dbus_write_socket_two (int               fd,
+int         _dbus_write_socket_two (DBusSocket        fd,
                                     const DBusString *buffer1,
                                     int               start1,
                                     int               len1,
@@ -149,19 +160,19 @@ int         _dbus_write_socket_two (int               fd,
                                     int               start2,
                                     int               len2);
 
-int _dbus_read_socket_with_unix_fds      (int               fd,
+int _dbus_read_socket_with_unix_fds      (DBusSocket        fd,
                                           DBusString       *buffer,
                                           int               count,
                                           int              *fds,
                                           int              *n_fds);
 DBUS_PRIVATE_EXPORT
-int _dbus_write_socket_with_unix_fds     (int               fd,
+int _dbus_write_socket_with_unix_fds     (DBusSocket        fd,
                                           const DBusString *buffer,
                                           int               start,
                                           int               len,
                                           const int        *fds,
                                           int               n_fds);
-int _dbus_write_socket_with_unix_fds_two (int               fd,
+int _dbus_write_socket_with_unix_fds_two (DBusSocket        fd,
                                           const DBusString *buffer1,
                                           int               start1,
                                           int               len1,
@@ -171,7 +182,7 @@ int _dbus_write_socket_with_unix_fds_two (int               fd,
                                           const int        *fds,
                                           int               n_fds);
 
-dbus_bool_t _dbus_socket_is_invalid (int              fd);
+dbus_bool_t _dbus_socket_is_invalid (DBusSocket        fd);
 
 int _dbus_connect_tcp_socket  (const char     *host,
                                const char     *port,
@@ -186,15 +197,15 @@ int _dbus_listen_tcp_socket   (const char     *host,
                                const char     *port,
                                const char     *family,
                                DBusString     *retport,
-                               int           **fds_p,
+                               DBusSocket    **fds_p,
                                DBusError      *error);
-int _dbus_accept              (int             listen_fd);
+DBusSocket _dbus_accept       (DBusSocket      listen_fd);
 
 
-dbus_bool_t _dbus_read_credentials_socket (int               client_fd,
+dbus_bool_t _dbus_read_credentials_socket (DBusSocket        client_fd,
                                            DBusCredentials  *credentials,
                                            DBusError        *error);
-dbus_bool_t _dbus_send_credentials_socket (int              server_fd,
+dbus_bool_t _dbus_send_credentials_socket (DBusSocket       server_fd,
                                            DBusError       *error);
 
 dbus_bool_t _dbus_credentials_add_from_user            (DBusCredentials  *credentials,
@@ -224,7 +235,7 @@ dbus_bool_t _dbus_daemon_publish_session_bus_address (const char* address, const
 
 void _dbus_daemon_unpublish_session_bus_address (void);
 
-dbus_bool_t _dbus_socket_can_pass_unix_fd(int fd);
+dbus_bool_t _dbus_socket_can_pass_unix_fd(DBusSocket fd);
 
 /** Opaque type representing an atomically-modifiable integer
  * that can be used from multiple threads.
@@ -438,8 +449,8 @@ dbus_bool_t _dbus_stat             (const DBusString *filename,
                                     DBusStat         *statbuf,
                                     DBusError        *error);
 DBUS_PRIVATE_EXPORT
-dbus_bool_t _dbus_socketpair (int              *fd1,
-                              int              *fd2,
+dbus_bool_t _dbus_socketpair (DBusSocket       *fd1,
+                              DBusSocket       *fd2,
                               dbus_bool_t       blocking,
                               DBusError        *error);
 
diff --git a/dbus/dbus-watch.c b/dbus/dbus-watch.c
index 76a5d641..408e8ab1 100644
--- a/dbus/dbus-watch.c
+++ b/dbus/dbus-watch.c
@@ -590,6 +590,14 @@ dbus_watch_get_socket (DBusWatch *watch)
   return watch->fd;
 }
 
+DBusSocket
+_dbus_watch_get_socket (DBusWatch *watch)
+{
+  _dbus_assert (watch != NULL);
+
+  return watch->fd;
+}
+
 /**
  * Gets flags from DBusWatchFlags indicating
  * what conditions should be monitored on the
diff --git a/dbus/dbus-watch.h b/dbus/dbus-watch.h
index d80c83ac..6927c6a4 100644
--- a/dbus/dbus-watch.h
+++ b/dbus/dbus-watch.h
@@ -94,6 +94,8 @@ dbus_bool_t    _dbus_watch_get_oom_last_time  (DBusWatch               *watch);
 DBUS_PRIVATE_EXPORT
 void           _dbus_watch_set_oom_last_time  (DBusWatch               *watch,
                                                dbus_bool_t              oom);
+DBUS_PRIVATE_EXPORT
+DBusSocket     _dbus_watch_get_socket         (DBusWatch               *watch);
 
 /** @} */