2 * Server-side request handling
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
37 #include <sys/types.h>
38 #ifdef HAVE_SYS_SOCKET_H
39 # include <sys/socket.h>
41 #ifdef HAVE_SYS_WAIT_H
42 # include <sys/wait.h>
55 # include <mach/mach_time.h>
59 #define WIN32_NO_STATUS
64 #include "wine/library.h"
70 #define WANT_REQUEST_HANDLERS
73 /* Some versions of glibc don't define this */
78 /* path names for server master Unix socket */
79 static const char * const server_socket_name
= "socket"; /* name of the socket file */
80 static const char * const server_lock_name
= "lock"; /* name of the server lock file */
84 struct object obj
; /* object header */
85 struct fd
*fd
; /* file descriptor of the master socket */
88 static void master_socket_dump( struct object
*obj
, int verbose
);
89 static void master_socket_destroy( struct object
*obj
);
90 static void master_socket_poll_event( struct fd
*fd
, int event
);
92 static const struct object_ops master_socket_ops
=
94 sizeof(struct master_socket
), /* size */
95 master_socket_dump
, /* dump */
96 no_get_type
, /* get_type */
97 no_add_queue
, /* add_queue */
98 NULL
, /* remove_queue */
100 NULL
, /* satisfied */
101 no_signal
, /* signal */
102 no_get_fd
, /* get_fd */
103 no_map_access
, /* map_access */
104 default_get_sd
, /* get_sd */
105 default_set_sd
, /* set_sd */
106 no_lookup_name
, /* lookup_name */
107 no_link_name
, /* link_name */
108 NULL
, /* unlink_name */
109 no_open_file
, /* open_file */
110 no_close_handle
, /* close_handle */
111 master_socket_destroy
/* destroy */
114 static const struct fd_ops master_socket_fd_ops
=
116 NULL
, /* get_poll_events */
117 master_socket_poll_event
, /* poll_event */
119 NULL
, /* get_fd_type */
121 NULL
, /* queue_async */
122 NULL
/* reselect_async */
126 struct thread
*current
= NULL
; /* thread handling the current request */
127 unsigned int global_error
= 0; /* global error code for when no thread is current */
128 timeout_t server_start_time
= 0; /* server startup time */
129 int server_dir_fd
= -1; /* file descriptor for the server dir */
130 int config_dir_fd
= -1; /* file descriptor for the config dir */
132 static struct master_socket
*master_socket
; /* the master socket object */
133 static struct timeout_user
*master_timeout
;
135 /* complain about a protocol error and terminate the client connection */
136 void fatal_protocol_error( struct thread
*thread
, const char *err
, ... )
140 va_start( args
, err
);
141 fprintf( stderr
, "Protocol error:%04x: ", thread
->id
);
142 vfprintf( stderr
, err
, args
);
144 thread
->exit_code
= 1;
145 kill_thread( thread
, 1 );
148 /* die on a fatal error */
149 void fatal_error( const char *err
, ... )
153 va_start( args
, err
);
154 fprintf( stderr
, "wineserver: " );
155 vfprintf( stderr
, err
, args
);
160 /* allocate the reply data */
161 void *set_reply_data_size( data_size_t size
)
163 assert( size
<= get_reply_max_size() );
164 if (size
&& !(current
->reply_data
= mem_alloc( size
))) size
= 0;
165 current
->reply_size
= size
;
166 return current
->reply_data
;
169 static const struct object_attributes empty_attributes
;
171 /* return object attributes from the current request */
172 const struct object_attributes
*get_req_object_attributes( const struct security_descriptor
**sd
,
173 struct unicode_str
*name
,
174 struct object
**root
)
176 const struct object_attributes
*attr
= get_req_data();
177 data_size_t size
= get_req_data_size();
179 if (root
) *root
= NULL
;
185 return &empty_attributes
;
188 if ((size
< sizeof(*attr
)) || (size
- sizeof(*attr
) < attr
->sd_len
) ||
189 (size
- sizeof(*attr
) - attr
->sd_len
< attr
->name_len
))
191 set_error( STATUS_ACCESS_VIOLATION
);
194 if (attr
->sd_len
&& !sd_is_valid( (const struct security_descriptor
*)(attr
+ 1), attr
->sd_len
))
196 set_error( STATUS_INVALID_SECURITY_DESCR
);
199 if ((attr
->name_len
& (sizeof(WCHAR
) - 1)) || attr
->name_len
>= 65534)
201 set_error( STATUS_OBJECT_NAME_INVALID
);
204 if (root
&& attr
->rootdir
&& attr
->name_len
)
206 if (!(*root
= get_directory_obj( current
->process
, attr
->rootdir
))) return NULL
;
208 *sd
= attr
->sd_len
? (const struct security_descriptor
*)(attr
+ 1) : NULL
;
209 name
->len
= attr
->name_len
;
210 name
->str
= (const WCHAR
*)(attr
+ 1) + attr
->sd_len
/ sizeof(WCHAR
);
214 /* return a pointer to the request data following an object attributes structure */
215 const void *get_req_data_after_objattr( const struct object_attributes
*attr
, data_size_t
*len
)
219 if (attr
== &empty_attributes
)
224 ptr
= (const WCHAR
*)(attr
+ 1) + attr
->sd_len
/ sizeof(WCHAR
) + attr
->name_len
/ sizeof(WCHAR
);
225 *len
= get_req_data_size() - ((const char *)ptr
- (const char *)get_req_data());
229 /* write the remaining part of the reply */
230 void write_reply( struct thread
*thread
)
234 if ((ret
= write( get_unix_fd( thread
->reply_fd
),
235 (char *)thread
->reply_data
+ thread
->reply_size
- thread
->reply_towrite
,
236 thread
->reply_towrite
)) >= 0)
238 if (!(thread
->reply_towrite
-= ret
))
240 free( thread
->reply_data
);
241 thread
->reply_data
= NULL
;
242 /* sent everything, can go back to waiting for requests */
243 set_fd_events( thread
->request_fd
, POLLIN
);
244 set_fd_events( thread
->reply_fd
, 0 );
249 kill_thread( thread
, 0 ); /* normal death */
250 else if (errno
!= EWOULDBLOCK
&& (EWOULDBLOCK
== EAGAIN
|| errno
!= EAGAIN
))
251 fatal_protocol_error( thread
, "reply write: %s\n", strerror( errno
));
254 /* send a reply to the current thread */
255 static void send_reply( union generic_reply
*reply
)
259 if (!current
->reply_size
)
261 if ((ret
= write( get_unix_fd( current
->reply_fd
),
262 reply
, sizeof(*reply
) )) != sizeof(*reply
)) goto error
;
268 vec
[0].iov_base
= (void *)reply
;
269 vec
[0].iov_len
= sizeof(*reply
);
270 vec
[1].iov_base
= current
->reply_data
;
271 vec
[1].iov_len
= current
->reply_size
;
273 if ((ret
= writev( get_unix_fd( current
->reply_fd
), vec
, 2 )) < sizeof(*reply
)) goto error
;
275 if ((current
->reply_towrite
= current
->reply_size
- (ret
- sizeof(*reply
))))
277 /* couldn't write it all, wait for POLLOUT */
278 set_fd_events( current
->reply_fd
, POLLOUT
);
279 set_fd_events( current
->request_fd
, 0 );
283 free( current
->reply_data
);
284 current
->reply_data
= NULL
;
289 fatal_protocol_error( current
, "partial write %d\n", ret
);
290 else if (errno
== EPIPE
)
291 kill_thread( current
, 0 ); /* normal death */
293 fatal_protocol_error( current
, "reply write: %s\n", strerror( errno
));
296 /* call a request handler */
297 static void call_req_handler( struct thread
*thread
)
299 union generic_reply reply
;
300 enum request req
= thread
->req
.request_header
.req
;
303 current
->reply_size
= 0;
305 memset( &reply
, 0, sizeof(reply
) );
307 if (debug_level
) trace_request();
309 if (req
< REQ_NB_REQUESTS
)
310 req_handlers
[req
]( ¤t
->req
, &reply
);
312 set_error( STATUS_NOT_IMPLEMENTED
);
316 if (current
->reply_fd
)
318 reply
.reply_header
.error
= current
->error
;
319 reply
.reply_header
.reply_size
= current
->reply_size
;
320 if (debug_level
) trace_reply( req
, &reply
);
321 send_reply( &reply
);
325 current
->exit_code
= 1;
326 kill_thread( current
, 1 ); /* no way to continue without reply fd */
332 /* read a request from a thread */
333 void read_request( struct thread
*thread
)
337 if (!thread
->req_toread
) /* no pending request */
339 if ((ret
= read( get_unix_fd( thread
->request_fd
), &thread
->req
,
340 sizeof(thread
->req
) )) != sizeof(thread
->req
)) goto error
;
341 if (!(thread
->req_toread
= thread
->req
.request_header
.request_size
))
343 /* no data, handle request at once */
344 call_req_handler( thread
);
347 if (!(thread
->req_data
= malloc( thread
->req_toread
)))
349 fatal_protocol_error( thread
, "no memory for %u bytes request %d\n",
350 thread
->req_toread
, thread
->req
.request_header
.req
);
355 /* read the variable sized data */
358 ret
= read( get_unix_fd( thread
->request_fd
),
359 (char *)thread
->req_data
+ thread
->req
.request_header
.request_size
360 - thread
->req_toread
,
361 thread
->req_toread
);
363 if (!(thread
->req_toread
-= ret
))
365 call_req_handler( thread
);
366 free( thread
->req_data
);
367 thread
->req_data
= NULL
;
373 if (!ret
) /* closed pipe */
374 kill_thread( thread
, 0 );
376 fatal_protocol_error( thread
, "partial read %d\n", ret
);
377 else if (errno
!= EWOULDBLOCK
&& (EWOULDBLOCK
== EAGAIN
|| errno
!= EAGAIN
))
378 fatal_protocol_error( thread
, "read: %s\n", strerror( errno
));
381 /* receive a file descriptor on the process socket */
382 int receive_fd( struct process
*process
)
386 struct msghdr msghdr
;
389 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
390 msghdr
.msg_accrightslen
= sizeof(int);
391 msghdr
.msg_accrights
= (void *)&fd
;
392 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
393 char cmsg_buffer
[256];
394 msghdr
.msg_control
= cmsg_buffer
;
395 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
396 msghdr
.msg_flags
= 0;
397 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
399 msghdr
.msg_name
= NULL
;
400 msghdr
.msg_namelen
= 0;
401 msghdr
.msg_iov
= &vec
;
402 msghdr
.msg_iovlen
= 1;
403 vec
.iov_base
= (void *)&data
;
404 vec
.iov_len
= sizeof(data
);
406 ret
= recvmsg( get_unix_fd( process
->msg_fd
), &msghdr
, 0 );
408 #ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
411 struct cmsghdr
*cmsg
;
412 for (cmsg
= CMSG_FIRSTHDR( &msghdr
); cmsg
; cmsg
= CMSG_NXTHDR( &msghdr
, cmsg
))
414 if (cmsg
->cmsg_level
!= SOL_SOCKET
) continue;
415 if (cmsg
->cmsg_type
== SCM_RIGHTS
) fd
= *(int *)CMSG_DATA(cmsg
);
418 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
420 if (ret
== sizeof(data
))
422 struct thread
*thread
;
424 if (data
.tid
) thread
= get_thread_from_id( data
.tid
);
425 else thread
= (struct thread
*)grab_object( get_process_first_thread( process
));
427 if (!thread
|| thread
->process
!= process
|| thread
->state
== TERMINATED
)
430 fprintf( stderr
, "%04x: *fd* %d <- %d bad thread id\n",
431 data
.tid
, data
.fd
, fd
);
437 fprintf( stderr
, "%04x: *fd* %d <- %d\n",
438 thread
->id
, data
.fd
, fd
);
439 thread_add_inflight_fd( thread
, data
.fd
, fd
);
441 if (thread
) release_object( thread
);
447 kill_process( process
, 0 );
451 fprintf( stderr
, "Protocol error: process %04x: partial recvmsg %d for fd\n",
453 if (fd
!= -1) close( fd
);
454 kill_process( process
, 1 );
458 if (errno
!= EWOULDBLOCK
&& (EWOULDBLOCK
== EAGAIN
|| errno
!= EAGAIN
))
460 fprintf( stderr
, "Protocol error: process %04x: ", process
->id
);
462 kill_process( process
, 1 );
468 /* send an fd to a client */
469 int send_client_fd( struct process
*process
, int fd
, obj_handle_t handle
)
472 struct msghdr msghdr
;
475 #ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
476 msghdr
.msg_accrightslen
= sizeof(fd
);
477 msghdr
.msg_accrights
= (void *)&fd
;
478 #else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
479 char cmsg_buffer
[256];
480 struct cmsghdr
*cmsg
;
481 msghdr
.msg_control
= cmsg_buffer
;
482 msghdr
.msg_controllen
= sizeof(cmsg_buffer
);
483 msghdr
.msg_flags
= 0;
484 cmsg
= CMSG_FIRSTHDR( &msghdr
);
485 cmsg
->cmsg_len
= CMSG_LEN( sizeof(fd
) );
486 cmsg
->cmsg_level
= SOL_SOCKET
;
487 cmsg
->cmsg_type
= SCM_RIGHTS
;
488 *(int *)CMSG_DATA(cmsg
) = fd
;
489 msghdr
.msg_controllen
= cmsg
->cmsg_len
;
490 #endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
492 msghdr
.msg_name
= NULL
;
493 msghdr
.msg_namelen
= 0;
494 msghdr
.msg_iov
= &vec
;
495 msghdr
.msg_iovlen
= 1;
497 vec
.iov_base
= (void *)&handle
;
498 vec
.iov_len
= sizeof(handle
);
501 fprintf( stderr
, "%04x: *fd* %04x -> %d\n", current
? current
->id
: process
->id
, handle
, fd
);
503 ret
= sendmsg( get_unix_fd( process
->msg_fd
), &msghdr
, 0 );
505 if (ret
== sizeof(handle
)) return 0;
509 fprintf( stderr
, "Protocol error: process %04x: partial sendmsg %d\n", process
->id
, ret
);
510 kill_process( process
, 1 );
512 else if (errno
== EPIPE
)
514 kill_process( process
, 0 );
518 fprintf( stderr
, "Protocol error: process %04x: ", process
->id
);
520 kill_process( process
, 1 );
525 /* get current tick count to return to client */
526 unsigned int get_tick_count(void)
529 static mach_timebase_info_data_t timebase
;
531 if (!timebase
.denom
) mach_timebase_info( &timebase
);
532 return mach_absolute_time() * timebase
.numer
/ timebase
.denom
/ 1000000;
533 #elif defined(HAVE_CLOCK_GETTIME)
535 #ifdef CLOCK_MONOTONIC_RAW
536 if (!clock_gettime( CLOCK_MONOTONIC_RAW
, &ts
))
537 return ts
.tv_sec
* 1000 + ts
.tv_nsec
/ 1000000;
539 if (!clock_gettime( CLOCK_MONOTONIC
, &ts
))
540 return ts
.tv_sec
* 1000 + ts
.tv_nsec
/ 1000000;
542 return (current_time
- server_start_time
) / 10000;
545 static void master_socket_dump( struct object
*obj
, int verbose
)
547 struct master_socket
*sock
= (struct master_socket
*)obj
;
548 assert( obj
->ops
== &master_socket_ops
);
549 fprintf( stderr
, "Master socket fd=%p\n", sock
->fd
);
552 static void master_socket_destroy( struct object
*obj
)
554 struct master_socket
*sock
= (struct master_socket
*)obj
;
555 assert( obj
->ops
== &master_socket_ops
);
556 release_object( sock
->fd
);
559 /* handle a socket event */
560 static void master_socket_poll_event( struct fd
*fd
, int event
)
562 struct master_socket
*sock
= get_fd_user( fd
);
563 assert( master_socket
->obj
.ops
== &master_socket_ops
);
565 assert( sock
== master_socket
); /* there is only one master socket */
567 if (event
& (POLLERR
| POLLHUP
))
569 /* this is not supposed to happen */
570 fprintf( stderr
, "wineserver: Error on master socket\n" );
571 set_fd_events( sock
->fd
, -1 );
573 else if (event
& POLLIN
)
575 struct sockaddr_un dummy
;
576 socklen_t len
= sizeof(dummy
);
577 int client
= accept( get_unix_fd( master_socket
->fd
), (struct sockaddr
*) &dummy
, &len
);
578 if (client
== -1) return;
579 fcntl( client
, F_SETFL
, O_NONBLOCK
);
580 create_process( client
, NULL
, 0 );
584 /* remove the socket upon exit */
585 static void socket_cleanup(void)
587 static int do_it_once
;
588 if (!do_it_once
++) unlink( server_socket_name
);
591 /* create a directory and check its permissions */
592 static void create_dir( const char *name
, struct stat
*st
)
594 if (lstat( name
, st
) == -1)
597 fatal_error( "lstat %s: %s", name
, strerror( errno
));
598 if (mkdir( name
, 0700 ) == -1 && errno
!= EEXIST
)
599 fatal_error( "mkdir %s: %s\n", name
, strerror( errno
));
600 if (lstat( name
, st
) == -1)
601 fatal_error( "lstat %s: %s\n", name
, strerror( errno
));
603 if (!S_ISDIR(st
->st_mode
)) fatal_error( "%s is not a directory\n", name
);
604 if (st
->st_uid
!= getuid()) fatal_error( "%s is not owned by you\n", name
);
605 if (st
->st_mode
& 077) fatal_error( "%s must not be accessible by other users\n", name
);
608 /* create the server directory and chdir to it */
609 static void create_server_dir( const char *dir
)
611 char *p
, *server_dir
;
614 if (!(server_dir
= strdup( dir
))) fatal_error( "out of memory\n" );
616 /* first create the base directory if needed */
618 p
= strrchr( server_dir
, '/' );
620 create_dir( server_dir
, &st
);
622 /* now create the server directory */
625 create_dir( server_dir
, &st
);
627 if (chdir( server_dir
) == -1)
628 fatal_error( "chdir %s: %s\n", server_dir
, strerror( errno
));
629 if ((server_dir_fd
= open( ".", O_RDONLY
)) == -1)
630 fatal_error( "open %s: %s\n", server_dir
, strerror( errno
));
631 if (fstat( server_dir_fd
, &st2
) == -1)
632 fatal_error( "stat %s: %s\n", server_dir
, strerror( errno
));
633 if (st
.st_dev
!= st2
.st_dev
|| st
.st_ino
!= st2
.st_ino
)
634 fatal_error( "chdir did not end up in %s\n", server_dir
);
639 /* create the lock file and return its file descriptor */
640 static int create_server_lock(void)
645 if (lstat( server_lock_name
, &st
) == -1)
648 fatal_error( "lstat %s/%s: %s", wine_get_server_dir(), server_lock_name
, strerror( errno
));
652 if (!S_ISREG(st
.st_mode
))
653 fatal_error( "%s/%s is not a regular file\n", wine_get_server_dir(), server_lock_name
);
656 if ((fd
= open( server_lock_name
, O_CREAT
|O_TRUNC
|O_WRONLY
, 0600 )) == -1)
657 fatal_error( "error creating %s/%s: %s", wine_get_server_dir(), server_lock_name
, strerror( errno
));
661 /* wait for the server lock */
662 int wait_for_lock(void)
664 const char *server_dir
= wine_get_server_dir();
668 if (!server_dir
) return 0; /* no server dir, so no lock to wait on */
670 create_server_dir( server_dir
);
671 fd
= create_server_lock();
674 fl
.l_whence
= SEEK_SET
;
677 r
= fcntl( fd
, F_SETLKW
, &fl
);
683 /* kill the wine server holding the lock */
684 int kill_lock_owner( int sig
)
686 const char *server_dir
= wine_get_server_dir();
691 if (!server_dir
) return 0; /* no server dir, nothing to do */
693 create_server_dir( server_dir
);
694 fd
= create_server_lock();
696 for (i
= 1; i
<= 20; i
++)
699 fl
.l_whence
= SEEK_SET
;
702 if (fcntl( fd
, F_GETLK
, &fl
) == -1) goto done
;
703 if (fl
.l_type
!= F_WRLCK
) goto done
; /* the file is not locked */
704 if (!pid
) /* first time around */
706 if (!(pid
= fl
.l_pid
)) goto done
; /* shouldn't happen */
709 if (kill( pid
, SIGINT
) == -1) goto done
;
710 kill( pid
, SIGCONT
);
713 else /* just send the specified signal and return */
715 ret
= (kill( pid
, sig
) != -1);
719 else if (fl
.l_pid
!= pid
) goto done
; /* no longer the same process */
722 /* waited long enough, now kill it */
723 kill( pid
, SIGKILL
);
730 /* acquire the main server lock */
731 static void acquire_lock(void)
733 struct sockaddr_un addr
;
736 int fd
, slen
, got_lock
= 0;
738 fd
= create_server_lock();
741 fl
.l_whence
= SEEK_SET
;
744 if (fcntl( fd
, F_SETLK
, &fl
) != -1)
746 /* check for crashed server */
747 if (stat( server_socket_name
, &st
) != -1 && /* there is a leftover socket */
748 stat( "core", &st
) != -1 && st
.st_size
) /* and there is a non-empty core file */
751 "Warning: a previous instance of the wine server seems to have crashed.\n"
752 "Please run 'gdb %s %s/core',\n"
753 "type 'backtrace' at the gdb prompt and report the results. Thanks.\n\n",
754 server_argv0
, wine_get_server_dir() );
756 unlink( server_socket_name
); /* we got the lock, we can safely remove the socket */
758 /* in that case we reuse fd without closing it, this ensures
759 * that we hold the lock until the process exits */
768 /* check whether locks work at all on this file system */
769 if (fcntl( fd
, F_GETLK
, &fl
) == -1) break;
772 exit(2); /* we didn't get the lock, exit with special status */
774 fatal_error( "fcntl %s/%s: %s", wine_get_server_dir(), server_lock_name
, strerror( errno
));
776 /* it seems we can't use locks on this fs, so we will use the socket existence as lock */
780 if ((fd
= socket( AF_UNIX
, SOCK_STREAM
, 0 )) == -1) fatal_error( "socket: %s\n", strerror( errno
));
781 addr
.sun_family
= AF_UNIX
;
782 strcpy( addr
.sun_path
, server_socket_name
);
783 slen
= sizeof(addr
) - sizeof(addr
.sun_path
) + strlen(addr
.sun_path
) + 1;
784 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
787 if (bind( fd
, (struct sockaddr
*)&addr
, slen
) == -1)
789 if ((errno
== EEXIST
) || (errno
== EADDRINUSE
))
792 fatal_error( "couldn't bind to the socket even though we hold the lock\n" );
793 exit(2); /* we didn't get the lock, exit with special status */
795 fatal_error( "bind: %s\n", strerror( errno
));
797 atexit( socket_cleanup
);
798 chmod( server_socket_name
, 0600 ); /* make sure no other user can connect */
799 if (listen( fd
, 5 ) == -1) fatal_error( "listen: %s\n", strerror( errno
));
801 if (!(master_socket
= alloc_object( &master_socket_ops
)) ||
802 !(master_socket
->fd
= create_anonymous_fd( &master_socket_fd_ops
, fd
, &master_socket
->obj
, 0 )))
803 fatal_error( "out of memory\n" );
804 set_fd_events( master_socket
->fd
, POLLIN
);
805 make_object_static( &master_socket
->obj
);
808 /* open the master server socket and start waiting for new clients */
809 void open_master_socket(void)
811 const char *server_dir
= wine_get_server_dir();
812 const char *config_dir
= wine_get_config_dir();
813 int fd
, pid
, status
, sync_pipe
[2];
816 /* make sure no request is larger than the maximum size */
817 assert( sizeof(union generic_request
) == sizeof(struct request_max_size
) );
818 assert( sizeof(union generic_reply
) == sizeof(struct request_max_size
) );
820 /* make sure the stdio fds are open */
821 fd
= open( "/dev/null", O_RDWR
);
822 while (fd
>= 0 && fd
<= 2) fd
= dup( fd
);
825 fatal_error( "directory %s cannot be accessed\n", config_dir
);
826 if (chdir( config_dir
) == -1)
827 fatal_error( "chdir to %s: %s\n", config_dir
, strerror( errno
));
828 if ((config_dir_fd
= open( ".", O_RDONLY
)) == -1)
829 fatal_error( "open %s: %s\n", config_dir
, strerror( errno
));
831 create_server_dir( server_dir
);
835 if (pipe( sync_pipe
) == -1) fatal_error( "pipe: %s\n", strerror( errno
));
841 close( sync_pipe
[0] );
845 /* close stdin and stdout */
851 write( sync_pipe
[1], &dummy
, 1 );
852 close( sync_pipe
[1] );
856 fatal_error( "fork: %s\n", strerror( errno
));
859 default: /* parent */
860 close( sync_pipe
[1] );
862 /* wait for child to signal us and then exit */
863 if (read( sync_pipe
[0], &dummy
, 1 ) == 1) _exit(0);
865 /* child terminated, propagate exit status */
866 waitpid( pid
, &status
, 0 );
867 if (WIFEXITED(status
)) _exit( WEXITSTATUS(status
) );
871 else /* remain in the foreground */
876 /* init the process tracing mechanism */
877 init_tracing_mechanism();
881 /* master socket timer expiration handler */
882 static void close_socket_timeout( void *arg
)
884 master_timeout
= NULL
;
886 if (debug_level
) fprintf( stderr
, "wineserver: exiting (pid=%ld)\n", (long) getpid() );
889 close_objects(); /* shut down everything properly */
894 /* close the master socket and stop waiting for new clients */
895 void close_master_socket( timeout_t timeout
)
899 release_object( master_socket
);
900 master_socket
= NULL
;
902 if (master_timeout
) /* cancel previous timeout */
903 remove_timeout_user( master_timeout
);
905 master_timeout
= add_timeout_user( timeout
, close_socket_timeout
, NULL
);