2 * Wine server communication
4 * Copyright (C) 1998 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
33 #include <sys/types.h>
34 #ifdef HAVE_SYS_SOCKET_H
35 # include <sys/socket.h>
37 #ifdef HAVE_SYS_WAIT_H
43 #ifdef HAVE_SYS_MMAN_H
46 #ifdef HAVE_SYS_STAT_H
47 # include <sys/stat.h>
57 #include "wine/library.h"
58 #include "wine/pthread.h"
59 #include "wine/server.h"
60 #include "wine/debug.h"
61 #include "ntdll_misc.h"
63 WINE_DEFAULT_DEBUG_CHANNEL(server);
65 /* Some versions of glibc don't define this */
70 #define SOCKETNAME "socket" /* name of the socket file */
71 #define LOCKNAME "lock" /* name of the lock file */
73 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
74 /* data structure used to pass an fd with sendmsg/recvmsg */
77 int len; /* size of structure */
78 int level; /* SOL_SOCKET */
79 int type; /* SCM_RIGHTS */
80 int fd; /* fd to pass */
82 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
84 time_t server_start_time = 0; /* time of server startup */
86 extern struct wine_pthread_functions pthread_functions;
88 static sigset_t block_set; /* signals to block during server calls */
89 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
92 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
93 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
94 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
97 /* die on a fatal error; use only during initialization */
98 static void fatal_error( const char *err, ... )
102 va_start( args, err );
103 fprintf( stderr, "wine: " );
104 vfprintf( stderr, err, args );
109 /* die on a fatal error; use only during initialization */
110 static void fatal_perror( const char *err, ... )
114 va_start( args, err );
115 fprintf( stderr, "wine: " );
116 vfprintf( stderr, err, args );
123 /***********************************************************************
126 void server_exit_thread( int status )
128 struct wine_pthread_thread_info info;
132 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
135 info.stack_base = NtCurrentTeb()->DeallocationStack;
136 info.teb_base = NtCurrentTeb();
137 info.teb_sel = wine_get_fs();
138 info.exit_status = status;
141 NtFreeVirtualMemory( GetCurrentProcess(), &info.stack_base, &size, MEM_RELEASE | MEM_SYSTEM );
142 info.stack_size = size;
145 NtFreeVirtualMemory( GetCurrentProcess(), &info.teb_base, &size, MEM_RELEASE | MEM_SYSTEM );
146 info.teb_size = size;
148 sigprocmask( SIG_BLOCK, &block_set, NULL );
149 close( ntdll_get_thread_data()->wait_fd[0] );
150 close( ntdll_get_thread_data()->wait_fd[1] );
151 close( ntdll_get_thread_data()->reply_fd );
152 close( ntdll_get_thread_data()->request_fd );
153 pthread_functions.exit_thread( &info );
157 /***********************************************************************
158 * server_abort_thread
160 void server_abort_thread( int status )
162 sigprocmask( SIG_BLOCK, &block_set, NULL );
163 close( ntdll_get_thread_data()->wait_fd[0] );
164 close( ntdll_get_thread_data()->wait_fd[1] );
165 close( ntdll_get_thread_data()->reply_fd );
166 close( ntdll_get_thread_data()->request_fd );
167 pthread_functions.abort_thread( status );
171 /***********************************************************************
172 * server_protocol_error
174 void server_protocol_error( const char *err, ... )
178 va_start( args, err );
179 fprintf( stderr, "wine client error:%lx: ", GetCurrentThreadId() );
180 vfprintf( stderr, err, args );
182 server_abort_thread(1);
186 /***********************************************************************
187 * server_protocol_perror
189 void server_protocol_perror( const char *err )
191 fprintf( stderr, "wine client error:%lx: ", GetCurrentThreadId() );
193 server_abort_thread(1);
197 /***********************************************************************
200 * Send a request to the server.
202 static void send_request( const struct __server_request_info *req )
207 if (!req->u.req.request_header.request_size)
209 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
210 sizeof(req->u.req) )) == sizeof(req->u.req)) return;
215 struct iovec vec[__SERVER_MAX_DATA+1];
217 vec[0].iov_base = (void *)&req->u.req;
218 vec[0].iov_len = sizeof(req->u.req);
219 for (i = 0; i < req->data_count; i++)
221 vec[i+1].iov_base = (void *)req->data[i].ptr;
222 vec[i+1].iov_len = req->data[i].size;
224 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
225 req->u.req.request_header.request_size + sizeof(req->u.req)) return;
228 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
229 if (errno == EPIPE) server_abort_thread(0);
230 server_protocol_perror( "write" );
234 /***********************************************************************
237 * Read data from the reply buffer; helper for wait_reply.
239 static void read_reply_data( void *buffer, size_t size )
245 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
247 if (!(size -= ret)) return;
248 buffer = (char *)buffer + ret;
252 if (errno == EINTR) continue;
253 if (errno == EPIPE) break;
254 server_protocol_perror("read");
256 /* the server closed the connection; time to die... */
257 server_abort_thread(0);
261 /***********************************************************************
264 * Wait for a reply from the server.
266 inline static void wait_reply( struct __server_request_info *req )
268 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
269 if (req->u.reply.reply_header.reply_size)
270 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
274 /***********************************************************************
275 * wine_server_call (NTDLL.@)
277 * Perform a server call.
280 * req_ptr [I/O] Function dependent data
283 * Depends on server function being called, but usually an NTSTATUS code.
286 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
287 * server request structure for the particular call. E.g:
288 *| SERVER_START_REQ( event_op )
290 *| req->handle = handle;
291 *| req->op = SET_EVENT;
292 *| ret = wine_server_call( req );
296 unsigned int wine_server_call( void *req_ptr )
298 struct __server_request_info * const req = req_ptr;
301 sigprocmask( SIG_BLOCK, &block_set, &old_set );
304 sigprocmask( SIG_SETMASK, &old_set, NULL );
305 return req->u.reply.reply_header.error;
309 /***********************************************************************
310 * wine_server_send_fd (NTDLL.@)
312 * Send a file descriptor to the server.
315 * fd [I] file descriptor to send
320 void wine_server_send_fd( int fd )
322 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
326 struct msghdr msghdr;
330 vec.iov_base = (void *)&data;
331 vec.iov_len = sizeof(data);
333 msghdr.msg_name = NULL;
334 msghdr.msg_namelen = 0;
335 msghdr.msg_iov = &vec;
336 msghdr.msg_iovlen = 1;
338 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
339 msghdr.msg_accrights = (void *)&fd;
340 msghdr.msg_accrightslen = sizeof(fd);
341 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
342 cmsg.len = sizeof(cmsg);
343 cmsg.level = SOL_SOCKET;
344 cmsg.type = SCM_RIGHTS;
346 msghdr.msg_control = &cmsg;
347 msghdr.msg_controllen = sizeof(cmsg);
348 msghdr.msg_flags = 0;
349 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
351 data.tid = GetCurrentThreadId();
356 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
357 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
358 if (errno == EINTR) continue;
359 if (errno == EPIPE) server_abort_thread(0);
360 server_protocol_perror( "sendmsg" );
365 /***********************************************************************
368 * Receive a file descriptor passed from the server.
370 static int receive_fd( obj_handle_t *handle )
375 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
376 struct msghdr msghdr;
379 msghdr.msg_accrights = (void *)&fd;
380 msghdr.msg_accrightslen = sizeof(fd);
381 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
382 struct msghdr msghdr;
385 cmsg.len = sizeof(cmsg);
386 cmsg.level = SOL_SOCKET;
387 cmsg.type = SCM_RIGHTS;
389 msghdr.msg_control = &cmsg;
390 msghdr.msg_controllen = sizeof(cmsg);
391 msghdr.msg_flags = 0;
392 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
394 msghdr.msg_name = NULL;
395 msghdr.msg_namelen = 0;
396 msghdr.msg_iov = &vec;
397 msghdr.msg_iovlen = 1;
398 vec.iov_base = (void *)handle;
399 vec.iov_len = sizeof(*handle);
403 if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
405 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
408 if (fd != -1) fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
412 if (errno == EINTR) continue;
413 if (errno == EPIPE) break;
414 server_protocol_perror("recvmsg");
416 /* the server closed the connection; time to die... */
417 server_abort_thread(0);
421 /***********************************************************************
422 * wine_server_fd_to_handle (NTDLL.@)
424 * Allocate a file handle for a Unix file descriptor.
427 * fd [I] Unix file descriptor.
428 * access [I] Win32 access flags.
429 * inherit [I] Indicates whether this handle is inherited by child processes.
430 * handle [O] Address where Wine file handle will be stored.
435 int wine_server_fd_to_handle( int fd, unsigned int access, int inherit, obj_handle_t *handle )
440 wine_server_send_fd( fd );
442 SERVER_START_REQ( alloc_file_handle )
444 req->access = access;
445 req->inherit = inherit;
447 if (!(ret = wine_server_call( req ))) *handle = reply->handle;
454 /***********************************************************************
455 * wine_server_handle_to_fd (NTDLL.@)
457 * Retrieve the file descriptor corresponding to a file handle.
460 * handle [I] Wine file handle.
461 * access [I] Win32 file access rights requested.
462 * unix_fd [O] Address where Unix file descriptor will be stored.
463 * flags [O] Address where the Unix flags associated with file will be stored. Optional.
468 int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd, int *flags )
470 obj_handle_t fd_handle;
471 int ret, removable = -1, fd = -1;
476 SERVER_START_REQ( get_handle_fd )
478 req->handle = handle;
479 req->access = access;
480 if (!(ret = wine_server_call( req )))
483 removable = reply->removable;
484 if (flags) *flags = reply->flags;
492 /* it wasn't in the cache, get it from the server */
493 fd = receive_fd( &fd_handle );
494 if (fd == -1) return STATUS_TOO_MANY_OPENED_FILES;
495 if (fd_handle != handle) removable = -1;
499 FILE_FS_DEVICE_INFORMATION info;
500 if (FILE_GetDeviceInfo( fd, &info ) == STATUS_SUCCESS)
501 removable = (info.Characteristics & FILE_REMOVABLE_MEDIA) != 0;
503 else if (removable) /* don't cache it */
506 return STATUS_SUCCESS;
509 /* and store it back into the cache */
510 SERVER_START_REQ( set_handle_fd )
512 req->handle = handle;
514 req->removable = removable;
515 if (!(ret = wine_server_call( req )))
517 if (reply->cur_fd != fd && reply->cur_fd != -1)
519 /* someone was here before us */
533 if (fd_handle == handle) break;
534 /* if we received a different handle this means there was
535 * a race with another thread; we restart everything from
536 * scratch in this case.
540 if ((fd != -1) && ((fd = dup(fd)) == -1)) return STATUS_TOO_MANY_OPENED_FILES;
542 return STATUS_SUCCESS;
546 /***********************************************************************
547 * wine_server_release_fd (NTDLL.@)
549 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
552 * handle [I] Wine file handle.
553 * unix_fd [I] Unix file descriptor to release.
558 void wine_server_release_fd( obj_handle_t handle, int unix_fd )
564 /***********************************************************************
567 * Start a new wine server.
569 static void start_server( const char *oldcwd )
571 static int started; /* we only try once */
579 if (pid == -1) fatal_perror( "fork" );
582 argv[0] = "wineserver";
583 argv[1] = TRACE_ON(server) ? "-d" : NULL;
585 /* if server is explicitly specified, use this */
586 if ((p = getenv("WINESERVER")))
588 if (p[0] != '/' && oldcwd[0] == '/') /* make it an absolute path */
590 if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
591 fatal_error( "out of memory\n" );
592 sprintf( path, "%s/%s", oldcwd, p );
595 wine_exec_wine_binary( p, argv, NULL, FALSE );
596 fatal_perror( "could not exec the server '%s'\n"
597 " specified in the WINESERVER environment variable", p );
599 /* now use the standard search strategy */
600 wine_exec_wine_binary( argv[0], argv, NULL, FALSE );
601 fatal_error( "could not exec wineserver\n" );
603 waitpid( pid, &status, 0 );
604 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
605 if (status == 2) return; /* server lock held by someone else, will retry later */
606 if (status) exit(status); /* server failed */
612 /***********************************************************************
613 * server_connect_error
615 * Try to display a meaningful explanation of why we couldn't connect
618 static void server_connect_error( const char *serverdir )
623 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
624 fatal_error( "for some mysterious reason, the wine server never started.\n" );
627 fl.l_whence = SEEK_SET;
630 if (fcntl( fd, F_GETLK, &fl ) != -1)
632 if (fl.l_type == F_WRLCK) /* the file is locked */
633 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
634 " You probably need to kill that process (it might be pid %d).\n",
636 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
638 fatal_error( "the file system of '%s' doesn't support locks,\n"
639 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
640 " You should make sure no wine server is running, remove that file and try again.\n",
645 /***********************************************************************
648 * Attempt to connect to an existing server socket.
649 * We need to be in the server directory already.
651 static int server_connect( const char *oldcwd, const char *serverdir )
653 struct sockaddr_un addr;
657 /* chdir to the server directory */
658 if (chdir( serverdir ) == -1)
660 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
662 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
665 /* make sure we are at the right place */
666 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
667 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
668 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
670 for (retry = 0; retry < 6; retry++)
672 /* if not the first try, wait a bit to leave the previous server time to exit */
675 usleep( 100000 * retry * retry );
676 start_server( oldcwd );
677 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
679 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
681 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
682 start_server( oldcwd );
683 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
686 /* make sure the socket is sane (ISFIFO needed for Solaris) */
687 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
688 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
689 if (st.st_uid != getuid())
690 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
692 /* try to connect to it */
693 addr.sun_family = AF_UNIX;
694 strcpy( addr.sun_path, SOCKETNAME );
695 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
696 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
699 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
700 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
702 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
707 server_connect_error( serverdir );
711 /***********************************************************************
714 * Remove a directory and all its contents; helper for create_config_dir.
716 static void rm_rf( const char *path )
718 int err = errno; /* preserve errno */
724 if (!(buffer = malloc( strlen(path) + 256 + 1 ))) goto done;
725 strcpy( buffer, path );
726 p = buffer + strlen(buffer);
729 if ((dir = opendir( path )))
731 while ((de = readdir( dir )))
733 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
734 strcpy( p, de->d_name );
735 if (unlink( buffer ) != -1) continue;
736 if (errno == EISDIR ||
737 (errno == EPERM && !lstat( buffer, &st ) && S_ISDIR(st.st_mode)))
739 /* recurse in the sub-directory */
752 /***********************************************************************
755 * Create the wine configuration dir (~/.wine).
757 static void create_config_dir(void)
759 const char *config_dir = wine_get_config_dir();
764 if (!(tmp_dir = malloc( strlen(config_dir) + sizeof("-XXXXXX") )))
765 fatal_error( "out of memory\n" );
766 strcpy( tmp_dir, config_dir );
767 strcat( tmp_dir, "-XXXXXX" );
768 if ((fd = mkstemps( tmp_dir, 0 )) == -1)
769 fatal_perror( "can't get temp file name for %s", config_dir );
772 if (mkdir( tmp_dir, 0777 ) == -1)
773 fatal_perror( "cannot create temp dir %s", tmp_dir );
775 MESSAGE( "wine: creating configuration directory '%s'...\n", config_dir );
780 fatal_perror( "fork" );
786 argv[0] = "wineprefixcreate";
789 argv[3] = "--prefix";
792 wine_exec_wine_binary( argv[0], (char **)argv, NULL, FALSE );
794 fatal_perror( "could not exec wineprefixcreate" );
800 while ((wret = waitpid( pid, &status, 0 )) != pid)
802 if (wret == -1 && errno != EINTR) fatal_perror( "wait4" );
804 if (!WIFEXITED(status) || WEXITSTATUS(status))
807 fatal_error( "wineprefixcreate failed while creating '%s'.\n", config_dir );
810 if (rename( tmp_dir, config_dir ) == -1)
813 if (errno != EEXIST && errno != ENOTEMPTY)
814 fatal_perror( "rename '%s' to '%s'", tmp_dir, config_dir );
815 /* else it was probably created by a concurrent wine process */
818 MESSAGE( "wine: '%s' created successfully.\n", config_dir );
822 /***********************************************************************
823 * server_init_process
825 * Start the server and create the initial socket pair.
827 void server_init_process(void)
831 obj_handle_t dummy_handle;
832 const char *server_dir = wine_get_server_dir();
834 if (!server_dir) /* this means the config dir doesn't exist */
837 server_dir = wine_get_server_dir();
840 /* retrieve the current directory */
841 for (size = 512; ; size *= 2)
843 if (!(oldcwd = malloc( size ))) break;
844 if (getcwd( oldcwd, size )) break;
846 if (errno == ERANGE) continue;
851 /* connect to the server */
852 fd_socket = server_connect( oldcwd, server_dir );
854 /* switch back to the starting directory */
861 /* setup the signal mask */
862 sigemptyset( &block_set );
863 sigaddset( &block_set, SIGALRM );
864 sigaddset( &block_set, SIGIO );
865 sigaddset( &block_set, SIGINT );
866 sigaddset( &block_set, SIGHUP );
867 sigaddset( &block_set, SIGUSR1 );
868 sigaddset( &block_set, SIGUSR2 );
869 sigaddset( &block_set, SIGCHLD );
871 /* receive the first thread request fd on the main socket */
872 ntdll_get_thread_data()->request_fd = receive_fd( &dummy_handle );
876 /***********************************************************************
879 * Send an init thread request. Return 0 if OK.
881 size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point )
885 struct sigaction sig_act;
888 sig_act.sa_handler = SIG_IGN;
889 sig_act.sa_flags = 0;
890 sigemptyset( &sig_act.sa_mask );
892 /* ignore SIGPIPE so that we get an EPIPE error instead */
893 sigaction( SIGPIPE, &sig_act, NULL );
894 /* automatic child reaping to avoid zombies */
896 sig_act.sa_flags |= SA_NOCLDWAIT;
898 sigaction( SIGCHLD, &sig_act, NULL );
900 /* create the server->client communication pipes */
901 if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
902 if (pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
903 wine_server_send_fd( reply_pipe[1] );
904 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
905 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
906 close( reply_pipe[1] );
908 /* set close on exec flag */
909 fcntl( ntdll_get_thread_data()->reply_fd, F_SETFD, 1 );
910 fcntl( ntdll_get_thread_data()->wait_fd[0], F_SETFD, 1 );
911 fcntl( ntdll_get_thread_data()->wait_fd[1], F_SETFD, 1 );
913 SERVER_START_REQ( init_thread )
915 req->unix_pid = unix_pid;
916 req->unix_tid = unix_tid;
917 req->teb = NtCurrentTeb();
918 req->peb = NtCurrentTeb()->Peb;
919 req->entry = entry_point;
920 req->ldt_copy = &wine_ldt_copy;
921 req->reply_fd = reply_pipe[1];
922 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
923 req->debug_level = (TRACE_ON(server) != 0);
924 ret = wine_server_call( req );
925 NtCurrentTeb()->ClientId.UniqueProcess = (HANDLE)reply->pid;
926 NtCurrentTeb()->ClientId.UniqueThread = (HANDLE)reply->tid;
927 info_size = reply->info_size;
928 version = reply->version;
929 server_start_time = reply->server_start;
933 if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
934 if (version != SERVER_PROTOCOL_VERSION)
935 server_protocol_error( "version mismatch %d/%d.\n"
936 "Your %s binary was not upgraded correctly,\n"
937 "or you have an older one somewhere in your PATH.\n"
938 "Or maybe the wrong wineserver is still running?\n",
939 version, SERVER_PROTOCOL_VERSION,
940 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );