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 */
79 size_t len; /* size of structure */
80 int level; /* SOL_SOCKET */
81 int type; /* SCM_RIGHTS */
83 int fd; /* fd to pass */
85 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
87 time_t server_start_time = 0; /* time of server startup */
89 extern struct wine_pthread_functions pthread_functions;
91 static sigset_t block_set; /* signals to block during server calls */
92 static int fd_socket = -1; /* socket to exchange file descriptors with the server */
95 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
96 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
97 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
100 /* die on a fatal error; use only during initialization */
101 static void fatal_error( const char *err, ... )
105 va_start( args, err );
106 fprintf( stderr, "wine: " );
107 vfprintf( stderr, err, args );
112 /* die on a fatal error; use only during initialization */
113 static void fatal_perror( const char *err, ... )
117 va_start( args, err );
118 fprintf( stderr, "wine: " );
119 vfprintf( stderr, err, args );
126 /***********************************************************************
129 void server_exit_thread( int status )
131 struct wine_pthread_thread_info info;
135 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
138 info.stack_base = NtCurrentTeb()->DeallocationStack;
139 info.teb_base = NtCurrentTeb();
140 info.teb_sel = wine_get_fs();
141 info.exit_status = status;
144 NtFreeVirtualMemory( GetCurrentProcess(), &info.stack_base, &size, MEM_RELEASE | MEM_SYSTEM );
145 info.stack_size = size;
148 NtFreeVirtualMemory( GetCurrentProcess(), &info.teb_base, &size, MEM_RELEASE | MEM_SYSTEM );
149 info.teb_size = size;
151 sigprocmask( SIG_BLOCK, &block_set, NULL );
152 close( ntdll_get_thread_data()->wait_fd[0] );
153 close( ntdll_get_thread_data()->wait_fd[1] );
154 close( ntdll_get_thread_data()->reply_fd );
155 close( ntdll_get_thread_data()->request_fd );
156 pthread_functions.exit_thread( &info );
160 /***********************************************************************
161 * server_abort_thread
163 void server_abort_thread( int status )
165 sigprocmask( SIG_BLOCK, &block_set, NULL );
166 close( ntdll_get_thread_data()->wait_fd[0] );
167 close( ntdll_get_thread_data()->wait_fd[1] );
168 close( ntdll_get_thread_data()->reply_fd );
169 close( ntdll_get_thread_data()->request_fd );
170 pthread_functions.abort_thread( status );
174 /***********************************************************************
175 * server_protocol_error
177 void server_protocol_error( const char *err, ... )
181 va_start( args, err );
182 fprintf( stderr, "wine client error:%lx: ", GetCurrentThreadId() );
183 vfprintf( stderr, err, args );
185 server_abort_thread(1);
189 /***********************************************************************
190 * server_protocol_perror
192 void server_protocol_perror( const char *err )
194 fprintf( stderr, "wine client error:%lx: ", GetCurrentThreadId() );
196 server_abort_thread(1);
200 /***********************************************************************
203 * Send a request to the server.
205 static void send_request( const struct __server_request_info *req )
210 if (!req->u.req.request_header.request_size)
212 if ((ret = write( ntdll_get_thread_data()->request_fd, &req->u.req,
213 sizeof(req->u.req) )) == sizeof(req->u.req)) return;
218 struct iovec vec[__SERVER_MAX_DATA+1];
220 vec[0].iov_base = (void *)&req->u.req;
221 vec[0].iov_len = sizeof(req->u.req);
222 for (i = 0; i < req->data_count; i++)
224 vec[i+1].iov_base = (void *)req->data[i].ptr;
225 vec[i+1].iov_len = req->data[i].size;
227 if ((ret = writev( ntdll_get_thread_data()->request_fd, vec, i+1 )) ==
228 req->u.req.request_header.request_size + sizeof(req->u.req)) return;
231 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
232 if (errno == EPIPE) server_abort_thread(0);
233 server_protocol_perror( "write" );
237 /***********************************************************************
240 * Read data from the reply buffer; helper for wait_reply.
242 static void read_reply_data( void *buffer, size_t size )
248 if ((ret = read( ntdll_get_thread_data()->reply_fd, buffer, size )) > 0)
250 if (!(size -= ret)) return;
251 buffer = (char *)buffer + ret;
255 if (errno == EINTR) continue;
256 if (errno == EPIPE) break;
257 server_protocol_perror("read");
259 /* the server closed the connection; time to die... */
260 server_abort_thread(0);
264 /***********************************************************************
267 * Wait for a reply from the server.
269 inline static void wait_reply( struct __server_request_info *req )
271 read_reply_data( &req->u.reply, sizeof(req->u.reply) );
272 if (req->u.reply.reply_header.reply_size)
273 read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
277 /***********************************************************************
278 * wine_server_call (NTDLL.@)
280 * Perform a server call.
283 * req_ptr [I/O] Function dependent data
286 * Depends on server function being called, but usually an NTSTATUS code.
289 * Use the SERVER_START_REQ and SERVER_END_REQ to help you fill out the
290 * server request structure for the particular call. E.g:
291 *| SERVER_START_REQ( event_op )
293 *| req->handle = handle;
294 *| req->op = SET_EVENT;
295 *| ret = wine_server_call( req );
299 unsigned int wine_server_call( void *req_ptr )
301 struct __server_request_info * const req = req_ptr;
304 sigprocmask( SIG_BLOCK, &block_set, &old_set );
307 sigprocmask( SIG_SETMASK, &old_set, NULL );
308 return req->u.reply.reply_header.error;
312 /***********************************************************************
313 * wine_server_send_fd (NTDLL.@)
315 * Send a file descriptor to the server.
318 * fd [I] file descriptor to send
323 void wine_server_send_fd( int fd )
325 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
329 struct msghdr msghdr;
333 vec.iov_base = (void *)&data;
334 vec.iov_len = sizeof(data);
336 msghdr.msg_name = NULL;
337 msghdr.msg_namelen = 0;
338 msghdr.msg_iov = &vec;
339 msghdr.msg_iovlen = 1;
341 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
342 msghdr.msg_accrights = (void *)&fd;
343 msghdr.msg_accrightslen = sizeof(fd);
344 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
345 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
346 cmsg.header.level = SOL_SOCKET;
347 cmsg.header.type = SCM_RIGHTS;
349 msghdr.msg_control = &cmsg;
350 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
351 msghdr.msg_flags = 0;
352 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
354 data.tid = GetCurrentThreadId();
359 if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
360 if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
361 if (errno == EINTR) continue;
362 if (errno == EPIPE) server_abort_thread(0);
363 server_protocol_perror( "sendmsg" );
368 /***********************************************************************
371 * Receive a file descriptor passed from the server.
373 static int receive_fd( obj_handle_t *handle )
378 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
379 struct msghdr msghdr;
382 msghdr.msg_accrights = (void *)&fd;
383 msghdr.msg_accrightslen = sizeof(fd);
384 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
385 struct msghdr msghdr;
388 cmsg.header.len = sizeof(cmsg.header) + sizeof(fd);
389 cmsg.header.level = SOL_SOCKET;
390 cmsg.header.type = SCM_RIGHTS;
392 msghdr.msg_control = &cmsg;
393 msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
394 msghdr.msg_flags = 0;
395 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
397 msghdr.msg_name = NULL;
398 msghdr.msg_namelen = 0;
399 msghdr.msg_iov = &vec;
400 msghdr.msg_iovlen = 1;
401 vec.iov_base = (void *)handle;
402 vec.iov_len = sizeof(*handle);
406 if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
408 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
411 if (fd != -1) fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
415 if (errno == EINTR) continue;
416 if (errno == EPIPE) break;
417 server_protocol_perror("recvmsg");
419 /* the server closed the connection; time to die... */
420 server_abort_thread(0);
424 /***********************************************************************
425 * wine_server_fd_to_handle (NTDLL.@)
427 * Allocate a file handle for a Unix file descriptor.
430 * fd [I] Unix file descriptor.
431 * access [I] Win32 access flags.
432 * inherit [I] Indicates whether this handle is inherited by child processes.
433 * handle [O] Address where Wine file handle will be stored.
438 int wine_server_fd_to_handle( int fd, unsigned int access, int inherit, obj_handle_t *handle )
443 wine_server_send_fd( fd );
445 SERVER_START_REQ( alloc_file_handle )
447 req->access = access;
448 req->inherit = inherit;
450 if (!(ret = wine_server_call( req ))) *handle = reply->handle;
457 /***********************************************************************
458 * wine_server_handle_to_fd (NTDLL.@)
460 * Retrieve the file descriptor corresponding to a file handle.
463 * handle [I] Wine file handle.
464 * access [I] Win32 file access rights requested.
465 * unix_fd [O] Address where Unix file descriptor will be stored.
466 * flags [O] Address where the Unix flags associated with file will be stored. Optional.
471 int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd, int *flags )
473 obj_handle_t fd_handle;
474 int ret, removable = -1, fd = -1;
479 SERVER_START_REQ( get_handle_fd )
481 req->handle = handle;
482 req->access = access;
483 if (!(ret = wine_server_call( req )))
486 removable = reply->removable;
487 if (flags) *flags = reply->flags;
495 if ((fd = dup(fd)) == -1) return FILE_GetNtStatus();
499 /* it wasn't in the cache, get it from the server */
500 fd = receive_fd( &fd_handle );
501 if (fd == -1) return STATUS_TOO_MANY_OPENED_FILES;
502 if (fd_handle != handle) removable = -1;
506 FILE_FS_DEVICE_INFORMATION info;
507 if (FILE_GetDeviceInfo( fd, &info ) == STATUS_SUCCESS)
508 removable = (info.Characteristics & FILE_REMOVABLE_MEDIA) != 0;
510 else if (removable) break; /* don't cache it */
512 /* and store it back into the cache */
513 SERVER_START_REQ( set_handle_fd )
515 req->handle = handle;
517 req->removable = removable;
518 if (!(ret = wine_server_call( req )))
520 if (reply->cur_fd != -1) /* it has been cached */
522 if (reply->cur_fd != fd) close( fd ); /* someone was here before us */
523 if ((fd = dup(reply->cur_fd)) == -1) ret = FILE_GetNtStatus();
535 if (fd_handle == handle) break;
536 /* if we received a different handle this means there was
537 * a race with another thread; we restart everything from
538 * scratch in this case.
544 return STATUS_SUCCESS;
548 /***********************************************************************
549 * wine_server_release_fd (NTDLL.@)
551 * Release the Unix file descriptor returned by wine_server_handle_to_fd.
554 * handle [I] Wine file handle.
555 * unix_fd [I] Unix file descriptor to release.
560 void wine_server_release_fd( obj_handle_t handle, int unix_fd )
566 /***********************************************************************
569 * Start a new wine server.
571 static void start_server( const char *oldcwd )
573 static int started; /* we only try once */
581 if (pid == -1) fatal_perror( "fork" );
584 argv[0] = "wineserver";
585 argv[1] = TRACE_ON(server) ? "-d" : NULL;
587 /* if server is explicitly specified, use this */
588 if ((p = getenv("WINESERVER")))
590 if (p[0] != '/' && oldcwd[0] == '/') /* make it an absolute path */
592 if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
593 fatal_error( "out of memory\n" );
594 sprintf( path, "%s/%s", oldcwd, p );
597 wine_exec_wine_binary( p, argv, NULL, FALSE );
598 fatal_perror( "could not exec the server '%s'\n"
599 " specified in the WINESERVER environment variable", p );
601 /* now use the standard search strategy */
602 wine_exec_wine_binary( argv[0], argv, NULL, FALSE );
603 fatal_error( "could not exec wineserver\n" );
605 waitpid( pid, &status, 0 );
606 status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
607 if (status == 2) return; /* server lock held by someone else, will retry later */
608 if (status) exit(status); /* server failed */
614 /***********************************************************************
615 * server_connect_error
617 * Try to display a meaningful explanation of why we couldn't connect
620 static void server_connect_error( const char *serverdir )
625 if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
626 fatal_error( "for some mysterious reason, the wine server never started.\n" );
629 fl.l_whence = SEEK_SET;
632 if (fcntl( fd, F_GETLK, &fl ) != -1)
634 if (fl.l_type == F_WRLCK) /* the file is locked */
635 fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
636 " You probably need to kill that process (it might be pid %d).\n",
638 fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
640 fatal_error( "the file system of '%s' doesn't support locks,\n"
641 " and there is a 'socket' file in that directory that prevents wine from starting.\n"
642 " You should make sure no wine server is running, remove that file and try again.\n",
647 /***********************************************************************
650 * Attempt to connect to an existing server socket.
651 * We need to be in the server directory already.
653 static int server_connect( const char *oldcwd, const char *serverdir )
655 struct sockaddr_un addr;
659 /* chdir to the server directory */
660 if (chdir( serverdir ) == -1)
662 if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
664 if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
667 /* make sure we are at the right place */
668 if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
669 if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
670 if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
672 for (retry = 0; retry < 6; retry++)
674 /* if not the first try, wait a bit to leave the previous server time to exit */
677 usleep( 100000 * retry * retry );
678 start_server( oldcwd );
679 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
681 else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
683 if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
684 start_server( oldcwd );
685 if (lstat( SOCKETNAME, &st ) == -1) continue; /* still no socket, wait a bit more */
688 /* make sure the socket is sane (ISFIFO needed for Solaris) */
689 if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
690 fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
691 if (st.st_uid != getuid())
692 fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
694 /* try to connect to it */
695 addr.sun_family = AF_UNIX;
696 strcpy( addr.sun_path, SOCKETNAME );
697 slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
698 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
701 if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
702 if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
704 fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
709 server_connect_error( serverdir );
713 /***********************************************************************
716 * Remove a directory and all its contents; helper for create_config_dir.
718 static void rm_rf( const char *path )
720 int err = errno; /* preserve errno */
726 if (!(buffer = malloc( strlen(path) + 256 + 1 ))) goto done;
727 strcpy( buffer, path );
728 p = buffer + strlen(buffer);
731 if ((dir = opendir( path )))
733 while ((de = readdir( dir )))
735 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
736 strcpy( p, de->d_name );
737 if (unlink( buffer ) != -1) continue;
738 if (errno == EISDIR ||
739 (errno == EPERM && !lstat( buffer, &st ) && S_ISDIR(st.st_mode)))
741 /* recurse in the sub-directory */
754 /***********************************************************************
757 * Create the wine configuration dir (~/.wine).
759 static void create_config_dir(void)
761 const char *config_dir = wine_get_config_dir();
766 if (!(tmp_dir = malloc( strlen(config_dir) + sizeof("-XXXXXX") )))
767 fatal_error( "out of memory\n" );
768 strcpy( tmp_dir, config_dir );
769 strcat( tmp_dir, "-XXXXXX" );
770 if ((fd = mkstemps( tmp_dir, 0 )) == -1)
771 fatal_perror( "can't get temp file name for %s", config_dir );
774 if (mkdir( tmp_dir, 0777 ) == -1)
775 fatal_perror( "cannot create temp dir %s", tmp_dir );
777 MESSAGE( "wine: creating configuration directory '%s'...\n", config_dir );
782 fatal_perror( "fork" );
788 argv[0] = "wineprefixcreate";
791 argv[3] = "--prefix";
794 wine_exec_wine_binary( argv[0], (char **)argv, NULL, FALSE );
796 fatal_perror( "could not exec wineprefixcreate" );
802 while ((wret = waitpid( pid, &status, 0 )) != pid)
804 if (wret == -1 && errno != EINTR) fatal_perror( "wait4" );
806 if (!WIFEXITED(status) || WEXITSTATUS(status))
809 fatal_error( "wineprefixcreate failed while creating '%s'.\n", config_dir );
812 if (rename( tmp_dir, config_dir ) == -1)
815 if (errno != EEXIST && errno != ENOTEMPTY)
816 fatal_perror( "rename '%s' to '%s'", tmp_dir, config_dir );
817 /* else it was probably created by a concurrent wine process */
820 MESSAGE( "wine: '%s' created successfully.\n", config_dir );
824 /***********************************************************************
825 * server_init_process
827 * Start the server and create the initial socket pair.
829 void server_init_process(void)
833 obj_handle_t dummy_handle;
834 const char *server_dir = wine_get_server_dir();
836 if (!server_dir) /* this means the config dir doesn't exist */
839 server_dir = wine_get_server_dir();
842 /* retrieve the current directory */
843 for (size = 512; ; size *= 2)
845 if (!(oldcwd = malloc( size ))) break;
846 if (getcwd( oldcwd, size )) break;
848 if (errno == ERANGE) continue;
853 /* connect to the server */
854 fd_socket = server_connect( oldcwd, server_dir );
856 /* switch back to the starting directory */
863 /* setup the signal mask */
864 sigemptyset( &block_set );
865 sigaddset( &block_set, SIGALRM );
866 sigaddset( &block_set, SIGIO );
867 sigaddset( &block_set, SIGINT );
868 sigaddset( &block_set, SIGHUP );
869 sigaddset( &block_set, SIGUSR1 );
870 sigaddset( &block_set, SIGUSR2 );
871 sigaddset( &block_set, SIGCHLD );
873 /* receive the first thread request fd on the main socket */
874 ntdll_get_thread_data()->request_fd = receive_fd( &dummy_handle );
878 /***********************************************************************
881 * Send an init thread request. Return 0 if OK.
883 size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point )
887 struct sigaction sig_act;
890 sig_act.sa_handler = SIG_IGN;
891 sig_act.sa_flags = 0;
892 sigemptyset( &sig_act.sa_mask );
894 /* ignore SIGPIPE so that we get an EPIPE error instead */
895 sigaction( SIGPIPE, &sig_act, NULL );
896 /* automatic child reaping to avoid zombies */
898 sig_act.sa_flags |= SA_NOCLDWAIT;
900 sigaction( SIGCHLD, &sig_act, NULL );
902 /* create the server->client communication pipes */
903 if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
904 if (pipe( ntdll_get_thread_data()->wait_fd ) == -1) server_protocol_perror( "pipe" );
905 wine_server_send_fd( reply_pipe[1] );
906 wine_server_send_fd( ntdll_get_thread_data()->wait_fd[1] );
907 ntdll_get_thread_data()->reply_fd = reply_pipe[0];
908 close( reply_pipe[1] );
910 /* set close on exec flag */
911 fcntl( ntdll_get_thread_data()->reply_fd, F_SETFD, 1 );
912 fcntl( ntdll_get_thread_data()->wait_fd[0], F_SETFD, 1 );
913 fcntl( ntdll_get_thread_data()->wait_fd[1], F_SETFD, 1 );
915 SERVER_START_REQ( init_thread )
917 req->unix_pid = unix_pid;
918 req->unix_tid = unix_tid;
919 req->teb = NtCurrentTeb();
920 req->peb = NtCurrentTeb()->Peb;
921 req->entry = entry_point;
922 req->ldt_copy = &wine_ldt_copy;
923 req->reply_fd = reply_pipe[1];
924 req->wait_fd = ntdll_get_thread_data()->wait_fd[1];
925 req->debug_level = (TRACE_ON(server) != 0);
926 ret = wine_server_call( req );
927 NtCurrentTeb()->ClientId.UniqueProcess = (HANDLE)reply->pid;
928 NtCurrentTeb()->ClientId.UniqueThread = (HANDLE)reply->tid;
929 info_size = reply->info_size;
930 version = reply->version;
931 server_start_time = reply->server_start;
935 if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
936 if (version != SERVER_PROTOCOL_VERSION)
937 server_protocol_error( "version mismatch %d/%d.\n"
938 "Your %s binary was not upgraded correctly,\n"
939 "or you have an older one somewhere in your PATH.\n"
940 "Or maybe the wrong wineserver is still running?\n",
941 version, SERVER_PROTOCOL_VERSION,
942 (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );