scheduler/process.c

   1 /*
   2  * Win32 processes
   3  *
   4  * Copyright 1996, 1998 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <errno.h>
  10 #include <fcntl.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include <unistd.h>
  15 #include "wine/winbase16.h"
  16 #include "wine/exception.h"
  17 #include "process.h"
  18 #include "main.h"
  19 #include "module.h"
  20 #include "neexe.h"
  21 #include "file.h"
  22 #include "global.h"
  23 #include "heap.h"
  24 #include "task.h"
  25 #include "ldt.h"
  26 #include "syslevel.h"
  27 #include "thread.h"
  28 #include "winerror.h"
  29 #include "pe_image.h"
  30 #include "server.h"
  31 #include "options.h"
  32 #include "callback.h"
  33 #include "debugtools.h"
  34
  35 DEFAULT_DEBUG_CHANNEL(process);
  36 DECLARE_DEBUG_CHANNEL(relay);
  37 DECLARE_DEBUG_CHANNEL(win32);
  38
  39
  40 static ENVDB initial_envdb;
  41 static STARTUPINFOA initial_startup;
  42 static char **main_exe_argv;
  43 static char *main_exe_name;
  44 static HFILE main_exe_file = -1;
  45
  46
  47 /***********************************************************************
  48  *           PROCESS_IdToPDB
  49  *
  50  * Convert a process id to a PDB, making sure it is valid.
  51  */
  52 PDB *PROCESS_IdToPDB( DWORD pid )
  53 {
  54     if (!pid || pid == GetCurrentProcessId()) return PROCESS_Current();
  55     return NULL;
  56 }
  57
  58
  59 /***********************************************************************
  60  *           PROCESS_CallUserSignalProc
  61  *
  62  * FIXME:  Some of the signals aren't sent correctly!
  63  *
  64  * The exact meaning of the USER signals is undocumented, but this
  65  * should cover the basic idea:
  66  *
  67  * USIG_DLL_UNLOAD_WIN16
  68  *     This is sent when a 16-bit module is unloaded.
  69  *
  70  * USIG_DLL_UNLOAD_WIN32
  71  *     This is sent when a 32-bit module is unloaded.
  72  *
  73  * USIG_DLL_UNLOAD_ORPHANS
  74  *     This is sent after the last Win3.1 module is unloaded,
  75  *     to allow removal of orphaned menus.
  76  *
  77  * USIG_FAULT_DIALOG_PUSH
  78  * USIG_FAULT_DIALOG_POP
  79  *     These are called to allow USER to prepare for displaying a
  80  *     fault dialog, even though the fault might have happened while
  81  *     inside a USER critical section.
  82  *
  83  * USIG_THREAD_INIT
  84  *     This is called from the context of a new thread, as soon as it
  85  *     has started to run.
  86  *
  87  * USIG_THREAD_EXIT
  88  *     This is called, still in its context, just before a thread is
  89  *     about to terminate.
  90  *
  91  * USIG_PROCESS_CREATE
  92  *     This is called, in the parent process context, after a new process
  93  *     has been created.
  94  *
  95  * USIG_PROCESS_INIT
  96  *     This is called in the new process context, just after the main thread
  97  *     has started execution (after the main thread's USIG_THREAD_INIT has
  98  *     been sent).
  99  *
 100  * USIG_PROCESS_LOADED
 101  *     This is called after the executable file has been loaded into the
 102  *     new process context.
 103  *
 104  * USIG_PROCESS_RUNNING
 105  *     This is called immediately before the main entry point is called.
 106  *
 107  * USIG_PROCESS_EXIT
 108  *     This is called in the context of a process that is about to
 109  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 110  *     been sent).
 111  *
 112  * USIG_PROCESS_DESTROY
 113  *     This is called after a process has terminated.
 114  *
 115  *
 116  * The meaning of the dwFlags bits is as follows:
 117  *
 118  * USIG_FLAGS_WIN32
 119  *     Current process is 32-bit.
 120  *
 121  * USIG_FLAGS_GUI
 122  *     Current process is a (Win32) GUI process.
 123  *
 124  * USIG_FLAGS_FEEDBACK
 125  *     Current process needs 'feedback' (determined from the STARTUPINFO
 126  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 127  *
 128  * USIG_FLAGS_FAULT
 129  *     The signal is being sent due to a fault.
 130  */
 131 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 132 {
 133     DWORD flags = PROCESS_Current()->flags;
 134     DWORD startup_flags = PROCESS_Current()->env_db->startup_info->dwFlags;
 135     DWORD dwFlags = 0;
 136
 137     /* Determine dwFlags */
 138
 139     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 140
 141     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 142
 143     if ( dwFlags & USIG_FLAGS_GUI )
 144     {
 145         /* Feedback defaults to ON */
 146         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 147             dwFlags |= USIG_FLAGS_FEEDBACK;
 148     }
 149     else
 150     {
 151         /* Feedback defaults to OFF */
 152         if (startup_flags & STARTF_FORCEONFEEDBACK)
 153             dwFlags |= USIG_FLAGS_FEEDBACK;
 154     }
 155
 156     /* Convert module handle to 16-bit */
 157
 158     if ( HIWORD( hModule ) )
 159         hModule = MapHModuleLS( hModule );
 160
 161     /* Call USER signal proc */
 162
 163     if ( Callout.UserSignalProc )
 164     {
 165         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 166             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 167         else
 168             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 169     }
 170 }
 171
 172
 173 /***********************************************************************
 174  *           PROCESS_Init
 175  */
 176 BOOL PROCESS_Init(void)
 177 {
 178     struct init_process_request *req;
 179     PDB *pdb = PROCESS_Current();
 180
 181     /* Fill the initial process structure */
 182     pdb->exit_code              = STILL_ACTIVE;
 183     pdb->threads                = 1;
 184     pdb->running_threads        = 1;
 185     pdb->ring0_threads          = 1;
 186     pdb->env_db                 = &initial_envdb;
 187     pdb->group                  = pdb;
 188     pdb->priority               = 8;  /* Normal */
 189     pdb->winver                 = 0xffff; /* to be determined */
 190     initial_envdb.startup_info  = &initial_startup;
 191
 192     /* Setup the server connection */
 193     NtCurrentTeb()->socket = CLIENT_InitServer();
 194     if (CLIENT_InitThread()) return FALSE;
 195
 196     /* Retrieve startup info from the server */
 197     req = get_req_buffer();
 198     req->ldt_copy  = ldt_copy;
 199     req->ldt_flags = ldt_flags_copy;
 200     req->ppid      = getppid();
 201     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 202     main_exe_file               = req->exe_file;
 203     if (req->filename[0]) main_exe_name = strdup( req->filename );
 204     initial_startup.dwFlags     = req->start_flags;
 205     initial_startup.wShowWindow = req->cmd_show;
 206     initial_envdb.hStdin   = initial_startup.hStdInput  = req->hstdin;
 207     initial_envdb.hStdout  = initial_startup.hStdOutput = req->hstdout;
 208     initial_envdb.hStderr  = initial_startup.hStdError  = req->hstderr;
 209
 210     /* Initialize signal handling */
 211     if (!SIGNAL_Init()) return FALSE;
 212
 213     /* Remember TEB selector of initial process for emergency use */
 214     SYSLEVEL_EmergencyTeb = NtCurrentTeb()->teb_sel;
 215
 216     /* Create the system and process heaps */
 217     if (!HEAP_CreateSystemHeap()) return FALSE;
 218     pdb->heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 219
 220     /* Copy the parent environment */
 221     if (!ENV_BuildEnvironment()) return FALSE;
 222
 223     /* Create the SEGPTR heap */
 224     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 225
 226     /* Initialize the critical sections */
 227     InitializeCriticalSection( &pdb->crit_section );
 228     InitializeCriticalSection( &initial_envdb.section );
 229
 230     /* Initialize syslevel handling */
 231     SYSLEVEL_Init();
 232
 233     return TRUE;
 234 }
 235
 236
 237 /***********************************************************************
 238  *           load_system_dlls
 239  *
 240  * Load system DLLs into the initial process (and initialize them)
 241  */
 242 static int load_system_dlls(void)
 243 {
 244     char driver[MAX_PATH];
 245
 246     if (!LoadLibraryA( "KERNEL32" )) return 0;
 247
 248     PROFILE_GetWineIniString( "Wine", "GraphicsDriver", "x11drv", driver, sizeof(driver) );
 249     if (!LoadLibraryA( driver ))
 250     {
 251         MESSAGE( "Could not load graphics driver '%s'\n", driver );
 252         return 0;
 253     }
 254
 255     if (!LoadLibraryA("USER32.DLL")) return 0;
 256
 257     /* Get pointers to USER routines called by KERNEL */
 258     THUNK_InitCallout();
 259
 260     /* Call FinalUserInit routine */
 261     Callout.FinalUserInit16();
 262
 263     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 264      *       context of the parent process.  Actually, the USER signal proc
 265      *       doesn't really care about that, but it *does* require that the
 266      *       startup parameters are correctly set up, so that GetProcessDword
 267      *       works.  Furthermore, before calling the USER signal proc the
 268      *       16-bit stack must be set up, which it is only after TASK_Create
 269      *       in the case of a 16-bit process. Thus, we send the signal here.
 270      */
 271     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 272     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 273     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 274     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 275
 276     return 1;
 277 }
 278
 279
 280 /***********************************************************************
 281  *           build_command_line
 282  *
 283  * Build the command-line of a process from the argv array.
 284  */
 285 static inline char *build_command_line( char **argv )
 286 {
 287     int len, quote;
 288     char *cmdline, *p, **arg;
 289
 290     for (arg = argv, len = 0; *arg; arg++) len += strlen(*arg) + 1;
 291     if ((quote = (strchr( argv[0], ' ' ) != NULL))) len += 2;
 292     if (!(p = cmdline = HeapAlloc( GetProcessHeap(), 0, len ))) return NULL;
 293     arg = argv;
 294     if (quote)
 295     {
 296         *p++ = '\"';
 297         strcpy( p, *arg );
 298         p += strlen(p);
 299         *p++ = '\"';
 300         *p++ = ' ';
 301         arg++;
 302     }
 303     while (*arg)
 304     {
 305         strcpy( p, *arg );
 306         p += strlen(p);
 307         *p++ = ' ';
 308         arg++;
 309     }
 310     if (p > cmdline) p--;  /* remove last space */
 311     *p = 0;
 312     return cmdline;
 313 }
 314
 315
 316 /***********************************************************************
 317  *           start_process
 318  *
 319  * Startup routine of a new process. Runs on the new process stack.
 320  */
 321 static void start_process(void)
 322 {
 323     __TRY
 324     {
 325         struct init_process_done_request *req = get_req_buffer();
 326         int debugged, console_app;
 327         HMODULE16 hModule16;
 328         UINT cmdShow = SW_SHOWNORMAL;
 329         LPTHREAD_START_ROUTINE entry;
 330         PDB *pdb = PROCESS_Current();
 331         HMODULE module = pdb->exe_modref->module;
 332
 333         /* Increment EXE refcount */
 334         pdb->exe_modref->refCount++;
 335
 336         /* build command line */
 337         if (!(pdb->env_db->cmd_line = build_command_line( main_exe_argv ))) goto error;
 338
 339         /* Retrieve entry point address */
 340         entry = (LPTHREAD_START_ROUTINE)RVA_PTR( module, OptionalHeader.AddressOfEntryPoint );
 341         console_app = (PE_HEADER(module)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
 342
 343         /* Create 16-bit dummy module */
 344         if ((hModule16 = MODULE_CreateDummyModule( pdb->exe_modref->filename, module )) < 32)
 345             ExitProcess( hModule16 );
 346
 347         if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 348             cmdShow = pdb->env_db->startup_info->wShowWindow;
 349         if (!TASK_Create( (NE_MODULE *)GlobalLock16( hModule16 ), cmdShow,
 350                           NtCurrentTeb(), NULL, 0 ))
 351             goto error;
 352
 353         if (console_app) pdb->flags |= PDB32_CONSOLE_PROC;
 354
 355         /* Signal the parent process to continue */
 356         req->module = (void *)module;
 357         req->entry  = entry;
 358         req->gui    = !console_app;
 359         server_call( REQ_INIT_PROCESS_DONE );
 360         debugged = req->debugged;
 361
 362         /* Load the system dlls */
 363         if (!load_system_dlls()) goto error;
 364
 365         EnterCriticalSection( &pdb->crit_section );
 366         PE_InitTls();
 367         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 368         LeaveCriticalSection( &pdb->crit_section );
 369
 370         /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 371         if (console_app) PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 372
 373         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 374         if (debugged) DbgBreakPoint();
 375         /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 376          * Dunno about other OSs */
 377         ExitThread( entry(NULL) );
 378
 379     error:
 380         ExitProcess( GetLastError() );
 381
 382     }
 383     __EXCEPT(UnhandledExceptionFilter)
 384     {
 385         TerminateThread( GetCurrentThread(), GetExceptionCode() );
 386     }
 387     __ENDTRY
 388 }
 389
 390
 391 /***********************************************************************
 392  *           PROCESS_Start
 393  *
 394  * Startup routine of a new Win32 process once the main module has been loaded.
 395  */
 396 static void PROCESS_Start( HMODULE main_module, LPCSTR filename ) WINE_NORETURN;
 397 static void PROCESS_Start( HMODULE main_module, LPCSTR filename )
 398 {
 399     /* load main module */
 400     if (PE_HEADER(main_module)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 401         ExitProcess( ERROR_BAD_EXE_FORMAT );
 402
 403     /* Create 32-bit MODREF */
 404     if (!PE_CreateModule( main_module, filename, 0, FALSE ))
 405         ExitProcess( GetLastError() );
 406
 407     /* allocate main thread stack */
 408     if (!THREAD_InitStack( NtCurrentTeb(),
 409                            PE_HEADER(main_module)->OptionalHeader.SizeOfStackReserve, TRUE ))
 410         ExitProcess( GetLastError() );
 411
 412     SIGNAL_Init();  /* reinitialize signal stack */
 413
 414     /* switch to the new stack */
 415     CALL32_Init( &IF1632_CallLargeStack, start_process, NtCurrentTeb()->stack_top );
 416 }
 417
 418
 419 /***********************************************************************
 420  *           PROCESS_InitWine
 421  *
 422  * Wine initialisation: load and start the main exe file.
 423  */
 424 void PROCESS_InitWine( int argc, char *argv[] )
 425 {
 426     DWORD type;
 427
 428     /* Initialize everything */
 429     if (!MAIN_MainInit( argv )) exit(1);
 430
 431     main_exe_argv = ++argv;  /* remove argv[0] (wine itself) */
 432
 433     if (!main_exe_name)
 434     {
 435         char buffer[MAX_PATH];
 436         if (!argv[0]) OPTIONS_Usage();
 437
 438         /* open the exe file */
 439         if (!SearchPathA( NULL, argv[0], ".exe", sizeof(buffer), buffer, NULL ) &&
 440             !SearchPathA( NULL, argv[0], NULL, sizeof(buffer), buffer, NULL ))
 441         {
 442             MESSAGE( "%s: cannot find '%s'\n", argv0, argv[0] );
 443             goto error;
 444         }
 445         if (!(main_exe_name = strdup(buffer)))
 446         {
 447             MESSAGE( "%s: out of memory\n", argv0 );
 448             ExitProcess(1);
 449         }
 450     }
 451
 452     if (main_exe_file == INVALID_HANDLE_VALUE)
 453     {
 454         if ((main_exe_file = CreateFileA( main_exe_name, GENERIC_READ, FILE_SHARE_READ,
 455                                           NULL, OPEN_EXISTING, 0, -1 )) == INVALID_HANDLE_VALUE)
 456         {
 457             MESSAGE( "%s: cannot open '%s'\n", argv0, main_exe_name );
 458             goto error;
 459         }
 460     }
 461
 462     if (!MODULE_GetBinaryType( main_exe_file, main_exe_name, &type ))
 463     {
 464         MESSAGE( "%s: unrecognized executable '%s'\n", argv0, main_exe_name );
 465         goto error;
 466     }
 467
 468     switch (type)
 469     {
 470     case SCS_32BIT_BINARY:
 471         {
 472             HMODULE main_module = PE_LoadImage( main_exe_file, main_exe_name );
 473             if (main_module) PROCESS_Start( main_module, main_exe_name );
 474         }
 475         break;
 476
 477     case SCS_WOW_BINARY:
 478         {
 479             HMODULE main_module;
 480             LPCSTR filename;
 481             /* create 32-bit module for main exe */
 482             if (!(main_module = BUILTIN32_LoadExeModule( &filename ))) goto error;
 483             NtCurrentTeb()->tibflags &= ~TEBF_WIN32;
 484             PROCESS_Current()->flags |= PDB32_WIN16_PROC;
 485             SYSLEVEL_EnterWin16Lock();
 486             PROCESS_Start( main_module, filename );
 487         }
 488         break;
 489
 490     case SCS_DOS_BINARY:
 491         FIXME( "DOS binaries support is broken at the moment; feel free to fix it...\n" );
 492         SetLastError( ERROR_BAD_FORMAT );
 493         break;
 494
 495     case SCS_PIF_BINARY:
 496     case SCS_POSIX_BINARY:
 497     case SCS_OS216_BINARY:
 498     default:
 499         MESSAGE( "%s: unrecognized executable '%s'\n", argv0, main_exe_name );
 500         SetLastError( ERROR_BAD_FORMAT );
 501         break;
 502     }
 503  error:
 504     ExitProcess( GetLastError() );
 505 }
 506
 507
 508 /***********************************************************************
 509  *           PROCESS_InitWinelib
 510  *
 511  * Initialisation of a new Winelib process.
 512  */
 513 void PROCESS_InitWinelib( int argc, char *argv[] )
 514 {
 515     HMODULE main_module;
 516     LPCSTR filename;
 517
 518     if (!MAIN_MainInit( argv )) exit(1);
 519
 520     main_exe_argv = argv;
 521
 522     /* create 32-bit module for main exe */
 523     if (!(main_module = BUILTIN32_LoadExeModule( &filename ))) ExitProcess( GetLastError() );
 524
 525     PROCESS_Start( main_module, filename );
 526 }
 527
 528
 529 /***********************************************************************
 530  *           build_argv
 531  *
 532  * Build an argv array from a command-line.
 533  * The command-line is modified to insert nulls.
 534  * 'reserved' is the number of args to reserve before the first one.
 535  */
 536 static char **build_argv( char *cmdline, int reserved )
 537 {
 538     char **argv;
 539     int count = reserved + 1;
 540     char *p = cmdline;
 541
 542     /* if first word is quoted store it as a single arg */
 543     if (*cmdline == '\"')
 544     {
 545         if ((p = strchr( cmdline + 1, '\"' )))
 546         {
 547             p++;
 548             count++;
 549         }
 550         else p = cmdline;
 551     }
 552     while (*p)
 553     {
 554         while (*p && isspace(*p)) p++;
 555         if (!*p) break;
 556         count++;
 557         while (*p && !isspace(*p)) p++;
 558     }
 559
 560     if ((argv = malloc( count * sizeof(*argv) )))
 561     {
 562         char **argvptr = argv + reserved;
 563         p = cmdline;
 564         if (*cmdline == '\"')
 565         {
 566             if ((p = strchr( cmdline + 1, '\"' )))
 567             {
 568                 *argvptr++ = cmdline + 1;
 569                 *p++ = 0;
 570             }
 571             else p = cmdline;
 572         }
 573         while (*p)
 574         {
 575             while (*p && isspace(*p)) *p++ = 0;
 576             if (!*p) break;
 577             *argvptr++ = p;
 578             while (*p && !isspace(*p)) p++;
 579         }
 580         *argvptr = 0;
 581     }
 582     return argv;
 583 }
 584
 585
 586 /***********************************************************************
 587  *           build_envp
 588  *
 589  * Build the environment of a new child process.
 590  */
 591 static char **build_envp( const char *env )
 592 {
 593     const char *p;
 594     char **envp;
 595     int count;
 596
 597     for (p = env, count = 0; *p; count++) p += strlen(p) + 1;
 598     count += 3;
 599     if ((envp = malloc( count * sizeof(*envp) )))
 600     {
 601         extern char **environ;
 602         char **envptr = envp;
 603         char **unixptr = environ;
 604         /* first put PATH, HOME and WINEPREFIX from the unix env */
 605         for (unixptr = environ; unixptr && *unixptr; unixptr++)
 606             if (!memcmp( *unixptr, "PATH=", 5 ) ||
 607                 !memcmp( *unixptr, "HOME=", 5 ) ||
 608                 !memcmp( *unixptr, "WINEPREFIX=", 11 )) *envptr++ = *unixptr;
 609         /* now put the Windows environment strings */
 610         for (p = env; *p; p += strlen(p) + 1)
 611         {
 612             if (memcmp( p, "PATH=", 5 ) &&
 613                 memcmp( p, "HOME=", 5 ) &&
 614                 memcmp( p, "WINEPREFIX=", 11 )) *envptr++ = (char *)p;
 615         }
 616         *envptr = 0;
 617     }
 618     return envp;
 619 }
 620
 621
 622 /***********************************************************************
 623  *           find_wine_binary
 624  *
 625  * Locate the Wine binary to exec for a new Win32 process.
 626  */
 627 static void exec_wine_binary( char **argv, char **envp )
 628 {
 629     const char *path, *pos, *ptr;
 630
 631     /* first try bin directory */
 632     argv[0] = BINDIR "/wine";
 633     execve( argv[0], argv, envp );
 634
 635     /* now try the path of argv0 of the current binary */
 636     if (!(argv[0] = malloc( strlen(argv0) + 6 ))) return;
 637     if ((ptr = strrchr( argv0, '/' )))
 638     {
 639         memcpy( argv[0], argv0, ptr - argv0 );
 640         strcpy( argv[0] + (ptr - argv0), "/wine" );
 641         execve( argv[0], argv, envp );
 642     }
 643     free( argv[0] );
 644
 645     /* now search in the Unix path */
 646     if ((path = getenv( "PATH" )))
 647     {
 648         if (!(argv[0] = malloc( strlen(path) + 6 ))) return;
 649         pos = path;
 650         for (;;)
 651         {
 652             while (*pos == ':') pos++;
 653             if (!*pos) break;
 654             if (!(ptr = strchr( pos, ':' ))) ptr = pos + strlen(pos);
 655             memcpy( argv[0], pos, ptr - pos );
 656             strcpy( argv[0] + (ptr - pos), "/wine" );
 657             execve( argv[0], argv, envp );
 658             pos = ptr;
 659         }
 660     }
 661     free( argv[0] );
 662
 663     /* finally try the current directory */
 664     argv[0] = "./wine";
 665     execve( argv[0], argv, envp );
 666 }
 667
 668
 669 /***********************************************************************
 670  *           fork_and_exec
 671  *
 672  * Fork and exec a new Unix process, checking for errors.
 673  */
 674 static int fork_and_exec( const char *filename, const char *cmdline, const char *env )
 675 {
 676     int fd[2];
 677     int pid, err;
 678
 679     if (pipe(fd) == -1)
 680     {
 681         FILE_SetDosError();
 682         return -1;
 683     }
 684     fcntl( fd[1], F_SETFD, 1 );  /* set close on exec */
 685     if (!(pid = fork()))  /* child */
 686     {
 687         char **argv = build_argv( (char *)cmdline, filename ? 0 : 2 );
 688         char **envp = build_envp( env );
 689         close( fd[0] );
 690         if (argv && envp)
 691         {
 692             if (!filename)
 693             {
 694                 argv[1] = "--";
 695                 exec_wine_binary( argv, envp );
 696             }
 697             else execve( filename, argv, envp );
 698         }
 699         err = errno;
 700         write( fd[1], &err, sizeof(err) );
 701         _exit(1);
 702     }
 703     close( fd[1] );
 704     if ((pid != -1) && (read( fd[0], &err, sizeof(err) ) > 0))  /* exec failed */
 705     {
 706         errno = err;
 707         pid = -1;
 708     }
 709     if (pid == -1) FILE_SetDosError();
 710     close( fd[0] );
 711     return pid;
 712 }
 713
 714
 715 /***********************************************************************
 716  *           PROCESS_Create
 717  *
 718  * Create a new process. If hFile is a valid handle we have an exe
 719  * file, and we exec a new copy of wine to load it; otherwise we
 720  * simply exec the specified filename as a Unix process.
 721  */
 722 BOOL PROCESS_Create( HFILE hFile, LPCSTR filename, LPCSTR cmd_line, LPCSTR env,
 723                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 724                      BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
 725                      LPPROCESS_INFORMATION info )
 726 {
 727     int pid;
 728     const char *unixfilename = NULL;
 729     DOS_FULL_NAME full_name;
 730     HANDLE load_done_evt = -1;
 731     struct new_process_request *req = get_req_buffer();
 732     struct wait_process_request *wait_req = get_req_buffer();
 733
 734     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 735
 736     /* create the process on the server side */
 737
 738     req->inherit_all  = inherit;
 739     req->create_flags = flags;
 740     req->start_flags  = startup->dwFlags;
 741     req->exe_file     = hFile;
 742     if (startup->dwFlags & STARTF_USESTDHANDLES)
 743     {
 744         req->hstdin  = startup->hStdInput;
 745         req->hstdout = startup->hStdOutput;
 746         req->hstderr = startup->hStdError;
 747     }
 748     else
 749     {
 750         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 751         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 752         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 753     }
 754     req->cmd_show = startup->wShowWindow;
 755     req->alloc_fd = 0;
 756
 757     if (hFile == -1)  /* unix process */
 758     {
 759         unixfilename = filename;
 760         if (DOSFS_GetFullName( filename, TRUE, &full_name )) unixfilename = full_name.long_name;
 761         req->filename[0] = 0;
 762     }
 763     else  /* new wine process */
 764     {
 765         if (!GetFullPathNameA( filename, server_remaining(req->filename), req->filename, NULL ))
 766             lstrcpynA( req->filename, filename, server_remaining(req->filename) );
 767     }
 768     if (server_call( REQ_NEW_PROCESS )) return FALSE;
 769
 770     /* fork and execute */
 771
 772     pid = fork_and_exec( unixfilename, cmd_line, env ? env : GetEnvironmentStringsA() );
 773
 774     wait_req->cancel   = (pid == -1);
 775     wait_req->pinherit = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 776     wait_req->tinherit = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 777     wait_req->timeout  = 2000;
 778     if (server_call( REQ_WAIT_PROCESS ) || (pid == -1)) goto error;
 779     info->dwProcessId = (DWORD)wait_req->pid;
 780     info->dwThreadId  = (DWORD)wait_req->tid;
 781     info->hProcess    = wait_req->phandle;
 782     info->hThread     = wait_req->thandle;
 783     load_done_evt     = wait_req->event;
 784
 785     /* Wait until process is initialized (or initialization failed) */
 786     if (load_done_evt != -1)
 787     {
 788         DWORD res;
 789         HANDLE handles[2];
 790
 791         handles[0] = info->hProcess;
 792         handles[1] = load_done_evt;
 793         res = WaitForMultipleObjects( 2, handles, FALSE, INFINITE );
 794         CloseHandle( load_done_evt );
 795         if (res == STATUS_WAIT_0)  /* the process died */
 796         {
 797             DWORD exitcode;
 798             if (GetExitCodeProcess( info->hProcess, &exitcode )) SetLastError( exitcode );
 799             CloseHandle( info->hThread );
 800             CloseHandle( info->hProcess );
 801             return FALSE;
 802         }
 803     }
 804     return TRUE;
 805
 806 error:
 807     if (load_done_evt != -1) CloseHandle( load_done_evt );
 808     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 809     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 810     return FALSE;
 811 }
 812
 813
 814 /***********************************************************************
 815  *           ExitProcess   (KERNEL32.100)
 816  */
 817 void WINAPI ExitProcess( DWORD status )
 818 {
 819     struct terminate_process_request *req = get_req_buffer();
 820
 821     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 822     /* send the exit code to the server */
 823     req->handle    = GetCurrentProcess();
 824     req->exit_code = status;
 825     server_call( REQ_TERMINATE_PROCESS );
 826     exit( status );
 827 }
 828
 829 /***********************************************************************
 830  *           ExitProcess16   (KERNEL.466)
 831  */
 832 void WINAPI ExitProcess16( WORD status )
 833 {
 834     SYSLEVEL_ReleaseWin16Lock();
 835     ExitProcess( status );
 836 }
 837
 838 /******************************************************************************
 839  *           TerminateProcess   (KERNEL32.684)
 840  */
 841 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 842 {
 843     BOOL ret;
 844     struct terminate_process_request *req = get_req_buffer();
 845     req->handle    = handle;
 846     req->exit_code = exit_code;
 847     if ((ret = !server_call( REQ_TERMINATE_PROCESS )) && req->self) exit( exit_code );
 848     return ret;
 849 }
 850
 851
 852 /***********************************************************************
 853  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 854  * 'Of course you cannot directly access Windows internal structures'
 855  */
 856 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 857 {
 858     PDB *process = PROCESS_IdToPDB( dwProcessID );
 859     TDB *pTask;
 860     DWORD x, y;
 861
 862     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 863     if ( !process )
 864     {
 865         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 866         return 0;
 867     }
 868
 869     switch ( offset )
 870     {
 871     case GPD_APP_COMPAT_FLAGS:
 872         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 873         return pTask? pTask->compat_flags : 0;
 874
 875     case GPD_LOAD_DONE_EVENT:
 876         return process->load_done_evt;
 877
 878     case GPD_HINSTANCE16:
 879         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 880         return pTask? pTask->hInstance : 0;
 881
 882     case GPD_WINDOWS_VERSION:
 883         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 884         return pTask? pTask->version : 0;
 885
 886     case GPD_THDB:
 887         if ( process != PROCESS_Current() ) return 0;
 888         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 889
 890     case GPD_PDB:
 891         return (DWORD)process;
 892
 893     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 894         return process->env_db->startup_info->hStdOutput;
 895
 896     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 897         return process->env_db->startup_info->hStdInput;
 898
 899     case GPD_STARTF_SHOWWINDOW:
 900         return process->env_db->startup_info->wShowWindow;
 901
 902     case GPD_STARTF_SIZE:
 903         x = process->env_db->startup_info->dwXSize;
 904         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 905         y = process->env_db->startup_info->dwYSize;
 906         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 907         return MAKELONG( x, y );
 908
 909     case GPD_STARTF_POSITION:
 910         x = process->env_db->startup_info->dwX;
 911         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 912         y = process->env_db->startup_info->dwY;
 913         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 914         return MAKELONG( x, y );
 915
 916     case GPD_STARTF_FLAGS:
 917         return process->env_db->startup_info->dwFlags;
 918
 919     case GPD_PARENT:
 920         return 0;
 921
 922     case GPD_FLAGS:
 923         return process->flags;
 924
 925     case GPD_USERDATA:
 926         return process->process_dword;
 927
 928     default:
 929         ERR_(win32)("Unknown offset %d\n", offset );
 930         return 0;
 931     }
 932 }
 933
 934 /***********************************************************************
 935  *           SetProcessDword    (KERNEL.484)
 936  * 'Of course you cannot directly access Windows internal structures'
 937  */
 938 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 939 {
 940     PDB *process = PROCESS_IdToPDB( dwProcessID );
 941
 942     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 943     if ( !process )
 944     {
 945         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 946         return;
 947     }
 948
 949     switch ( offset )
 950     {
 951     case GPD_APP_COMPAT_FLAGS:
 952     case GPD_LOAD_DONE_EVENT:
 953     case GPD_HINSTANCE16:
 954     case GPD_WINDOWS_VERSION:
 955     case GPD_THDB:
 956     case GPD_PDB:
 957     case GPD_STARTF_SHELLDATA:
 958     case GPD_STARTF_HOTKEY:
 959     case GPD_STARTF_SHOWWINDOW:
 960     case GPD_STARTF_SIZE:
 961     case GPD_STARTF_POSITION:
 962     case GPD_STARTF_FLAGS:
 963     case GPD_PARENT:
 964     case GPD_FLAGS:
 965         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 966         break;
 967
 968     case GPD_USERDATA:
 969         process->process_dword = value;
 970         break;
 971
 972     default:
 973         ERR_(win32)("Unknown offset %d\n", offset );
 974         break;
 975     }
 976 }
 977
 978
 979 /*********************************************************************
 980  *           OpenProcess   (KERNEL32.543)
 981  */
 982 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 983 {
 984     HANDLE ret = 0;
 985     struct open_process_request *req = get_req_buffer();
 986
 987     req->pid     = (void *)id;
 988     req->access  = access;
 989     req->inherit = inherit;
 990     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 991     return ret;
 992 }
 993
 994 /*********************************************************************
 995  *           MapProcessHandle   (KERNEL.483)
 996  */
 997 DWORD WINAPI MapProcessHandle( HANDLE handle )
 998 {
 999     DWORD ret = 0;
1000     struct get_process_info_request *req = get_req_buffer();
1001     req->handle = handle;
1002     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
1003     return ret;
1004 }
1005
1006 /***********************************************************************
1007  *           GetThreadLocale    (KERNEL32.295)
1008  */
1009 LCID WINAPI GetThreadLocale(void)
1010 {
1011     return PROCESS_Current()->locale;
1012 }
1013
1014
1015 /***********************************************************************
1016  *           SetPriorityClass   (KERNEL32.503)
1017  */
1018 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
1019 {
1020     struct set_process_info_request *req = get_req_buffer();
1021     req->handle   = hprocess;
1022     req->priority = priorityclass;
1023     req->mask     = SET_PROCESS_INFO_PRIORITY;
1024     return !server_call( REQ_SET_PROCESS_INFO );
1025 }
1026
1027
1028 /***********************************************************************
1029  *           GetPriorityClass   (KERNEL32.250)
1030  */
1031 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
1032 {
1033     DWORD ret = 0;
1034     struct get_process_info_request *req = get_req_buffer();
1035     req->handle = hprocess;
1036     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
1037     return ret;
1038 }
1039
1040
1041 /***********************************************************************
1042  *          SetProcessAffinityMask   (KERNEL32.662)
1043  */
1044 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
1045 {
1046     struct set_process_info_request *req = get_req_buffer();
1047     req->handle   = hProcess;
1048     req->affinity = affmask;
1049     req->mask     = SET_PROCESS_INFO_AFFINITY;
1050     return !server_call( REQ_SET_PROCESS_INFO );
1051 }
1052
1053 /**********************************************************************
1054  *          GetProcessAffinityMask    (KERNEL32.373)
1055  */
1056 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
1057                                       LPDWORD lpProcessAffinityMask,
1058                                       LPDWORD lpSystemAffinityMask )
1059 {
1060     BOOL ret = FALSE;
1061     struct get_process_info_request *req = get_req_buffer();
1062     req->handle = hProcess;
1063     if (!server_call( REQ_GET_PROCESS_INFO ))
1064     {
1065         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
1066         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
1067         ret = TRUE;
1068     }
1069     return ret;
1070 }
1071
1072
1073 /***********************************************************************
1074  *           GetStdHandle    (KERNEL32.276)
1075  */
1076 HANDLE WINAPI GetStdHandle( DWORD std_handle )
1077 {
1078     PDB *pdb = PROCESS_Current();
1079
1080     switch(std_handle)
1081     {
1082     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
1083     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
1084     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
1085     }
1086     SetLastError( ERROR_INVALID_PARAMETER );
1087     return INVALID_HANDLE_VALUE;
1088 }
1089
1090
1091 /***********************************************************************
1092  *           SetStdHandle    (KERNEL32.506)
1093  */
1094 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
1095 {
1096     PDB *pdb = PROCESS_Current();
1097     /* FIXME: should we close the previous handle? */
1098     switch(std_handle)
1099     {
1100     case STD_INPUT_HANDLE:
1101         pdb->env_db->hStdin = handle;
1102         return TRUE;
1103     case STD_OUTPUT_HANDLE:
1104         pdb->env_db->hStdout = handle;
1105         return TRUE;
1106     case STD_ERROR_HANDLE:
1107         pdb->env_db->hStderr = handle;
1108         return TRUE;
1109     }
1110     SetLastError( ERROR_INVALID_PARAMETER );
1111     return FALSE;
1112 }
1113
1114 /***********************************************************************
1115  *           GetProcessVersion    (KERNEL32)
1116  */
1117 DWORD WINAPI GetProcessVersion( DWORD processid )
1118 {
1119     TDB *pTask;
1120     PDB *pdb = PROCESS_IdToPDB( processid );
1121
1122     if (!pdb) return 0;
1123     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
1124     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
1125 }
1126
1127 /***********************************************************************
1128  *           GetProcessFlags    (KERNEL32)
1129  */
1130 DWORD WINAPI GetProcessFlags( DWORD processid )
1131 {
1132     PDB *pdb = PROCESS_IdToPDB( processid );
1133     if (!pdb) return 0;
1134     return pdb->flags;
1135 }
1136
1137 /***********************************************************************
1138  *              SetProcessWorkingSetSize        [KERNEL32.662]
1139  * Sets the min/max working set sizes for a specified process.
1140  *
1141  * PARAMS
1142  *    hProcess [I] Handle to the process of interest
1143  *    minset   [I] Specifies minimum working set size
1144  *    maxset   [I] Specifies maximum working set size
1145  *
1146  * RETURNS  STD
1147  */
1148 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1149                                        DWORD maxset)
1150 {
1151     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1152     if(( minset == -1) && (maxset == -1)) {
1153         /* Trim the working set to zero */
1154         /* Swap the process out of physical RAM */
1155     }
1156     return TRUE;
1157 }
1158
1159 /***********************************************************************
1160  *           GetProcessWorkingSetSize    (KERNEL32)
1161  */
1162 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1163                                        LPDWORD maxset)
1164 {
1165         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1166         /* 32 MB working set size */
1167         if (minset) *minset = 32*1024*1024;
1168         if (maxset) *maxset = 32*1024*1024;
1169         return TRUE;
1170 }
1171
1172 /***********************************************************************
1173  *           SetProcessShutdownParameters    (KERNEL32)
1174  *
1175  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1176  * Now tracks changes made (but does not act on these changes)
1177  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1178  * It really shouldn't be here, but I'll move it when it's been checked!
1179  */
1180 #define SHUTDOWN_NORETRY 1
1181 static unsigned int shutdown_noretry = 0;
1182 static unsigned int shutdown_priority = 0x280L;
1183 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1184 {
1185     if (flags & SHUTDOWN_NORETRY)
1186       shutdown_noretry = 1;
1187     else
1188       shutdown_noretry = 0;
1189     if (level > 0x100L && level < 0x3FFL)
1190       shutdown_priority = level;
1191     else
1192       {
1193         ERR("invalid priority level 0x%08lx\n", level);
1194         return FALSE;
1195       }
1196     return TRUE;
1197 }
1198
1199
1200 /***********************************************************************
1201  * GetProcessShutdownParameters                 (KERNEL32)
1202  *
1203  */
1204 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1205                                             LPDWORD lpdwFlags )
1206 {
1207   (*lpdwLevel) = shutdown_priority;
1208   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1209   return TRUE;
1210 }
1211 /***********************************************************************
1212  *           SetProcessPriorityBoost    (KERNEL32)
1213  */
1214 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1215 {
1216     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1217     /* Say we can do it. I doubt the program will notice that we don't. */
1218     return TRUE;
1219 }
1220
1221
1222 /***********************************************************************
1223  *           ReadProcessMemory                  (KERNEL32)
1224  */
1225 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1226                                LPDWORD bytes_read )
1227 {
1228     struct read_process_memory_request *req = get_req_buffer();
1229     unsigned int offset = (unsigned int)addr % sizeof(int);
1230     unsigned int max = server_remaining( req->data );  /* max length in one request */
1231     unsigned int pos;
1232
1233     if (bytes_read) *bytes_read = size;
1234
1235     /* first time, read total length to check for permissions */
1236     req->handle = process;
1237     req->addr   = (char *)addr - offset;
1238     req->len    = (size + offset + sizeof(int) - 1) / sizeof(int);
1239     if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1240
1241     if (size <= max - offset)
1242     {
1243         memcpy( buffer, (char *)req->data + offset, size );
1244         return TRUE;
1245     }
1246
1247     /* now take care of the remaining data */
1248     memcpy( buffer, (char *)req->data + offset, max - offset );
1249     pos = max - offset;
1250     size -= pos;
1251     while (size)
1252     {
1253         if (max > size) max = size;
1254         req->handle = process;
1255         req->addr   = (char *)addr + pos;
1256         req->len    = (max + sizeof(int) - 1) / sizeof(int);
1257         if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1258         memcpy( (char *)buffer + pos, (char *)req->data, max );
1259         size -= max;
1260         pos += max;
1261     }
1262     return TRUE;
1263
1264  error:
1265     if (bytes_read) *bytes_read = 0;
1266     return FALSE;
1267 }
1268
1269
1270 /***********************************************************************
1271  *           WriteProcessMemory                 (KERNEL32)
1272  */
1273 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1274                                 LPDWORD bytes_written )
1275 {
1276     unsigned int first_offset, last_offset;
1277     struct write_process_memory_request *req = get_req_buffer();
1278     unsigned int max = server_remaining( req->data );  /* max length in one request */
1279     unsigned int pos, last_mask;
1280
1281     if (!size)
1282     {
1283         SetLastError( ERROR_INVALID_PARAMETER );
1284         return FALSE;
1285     }
1286     if (bytes_written) *bytes_written = size;
1287
1288     /* compute the mask for the first int */
1289     req->first_mask = ~0;
1290     first_offset = (unsigned int)addr % sizeof(int);
1291     memset( &req->first_mask, 0, first_offset );
1292
1293     /* compute the mask for the last int */
1294     last_offset = (size + first_offset) % sizeof(int);
1295     last_mask = 0;
1296     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1297
1298     req->handle = process;
1299     req->addr = (char *)addr - first_offset;
1300     /* for the first request, use the total length */
1301     req->len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1302
1303     if (size + first_offset < max)  /* we can do it in one round */
1304     {
1305         memcpy( (char *)req->data + first_offset, buffer, size );
1306         req->last_mask = last_mask;
1307         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1308         return TRUE;
1309     }
1310
1311     /* needs multiple server calls */
1312
1313     memcpy( (char *)req->data + first_offset, buffer, max - first_offset );
1314     req->last_mask = ~0;
1315     if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1316     pos = max - first_offset;
1317     size -= pos;
1318     while (size)
1319     {
1320         if (size <= max)  /* last one */
1321         {
1322             req->last_mask = last_mask;
1323             max = size;
1324         }
1325         req->handle = process;
1326         req->addr = (char *)addr + pos;
1327         req->len = (max + sizeof(int) - 1) / sizeof(int);
1328         req->first_mask = ~0;
1329         memcpy( req->data, (char *) buffer + pos, max );
1330         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1331         pos += max;
1332         size -= max;
1333     }
1334     return TRUE;
1335
1336  error:
1337     if (bytes_written) *bytes_written = 0;
1338     return FALSE;
1339
1340 }
1341
1342
1343 /***********************************************************************
1344  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1345  *
1346  * A service process calls this function to ensure that it continues to run
1347  * even after a user logged off.
1348  */
1349 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1350 {
1351         /* I don't think that Wine needs to do anything in that function */
1352         return 1; /* success */
1353 }
1354
1355 /***********************************************************************
1356  * GetExitCodeProcess [KERNEL32.325]
1357  *
1358  * Gets termination status of specified process
1359  *
1360  * RETURNS
1361  *   Success: TRUE
1362  *   Failure: FALSE
1363  */
1364 BOOL WINAPI GetExitCodeProcess(
1365     HANDLE hProcess,  /* [I] handle to the process */
1366     LPDWORD lpExitCode) /* [O] address to receive termination status */
1367 {
1368     BOOL ret = FALSE;
1369     struct get_process_info_request *req = get_req_buffer();
1370     req->handle = hProcess;
1371     if (!server_call( REQ_GET_PROCESS_INFO ))
1372     {
1373         if (lpExitCode) *lpExitCode = req->exit_code;
1374         ret = TRUE;
1375     }
1376     return ret;
1377 }
1378
1379
1380 /***********************************************************************
1381  *           SetErrorMode   (KERNEL32.486)
1382  */
1383 UINT WINAPI SetErrorMode( UINT mode )
1384 {
1385     UINT old = PROCESS_Current()->error_mode;
1386     PROCESS_Current()->error_mode = mode;
1387     return old;
1388 }
1389
1390 /***********************************************************************
1391  *           GetCurrentProcess   (KERNEL32.198)
1392  */
1393 #undef GetCurrentProcess
1394 HANDLE WINAPI GetCurrentProcess(void)
1395 {
1396     return 0xffffffff;
1397 }