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