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 "wine/library.h"
  18 #include "drive.h"
  19 #include "module.h"
  20 #include "file.h"
  21 #include "global.h"
  22 #include "heap.h"
  23 #include "task.h"
  24 #include "ldt.h"
  25 #include "thread.h"
  26 #include "winerror.h"
  27 #include "server.h"
  28 #include "options.h"
  29 #include "callback.h"
  30 #include "debugtools.h"
  31
  32 DEFAULT_DEBUG_CHANNEL(process);
  33 DECLARE_DEBUG_CHANNEL(relay);
  34 DECLARE_DEBUG_CHANNEL(win32);
  35
  36 struct _ENVDB;
  37
  38 /* Win32 process database */
  39 typedef struct _PDB
  40 {
  41     LONG             header[2];        /* 00 Kernel object header */
  42     HMODULE          module;           /* 08 Main exe module (NT) */
  43     void            *event;            /* 0c Pointer to an event object (unused) */
  44     DWORD            exit_code;        /* 10 Process exit code */
  45     DWORD            unknown2;         /* 14 Unknown */
  46     HANDLE           heap;             /* 18 Default process heap */
  47     HANDLE           mem_context;      /* 1c Process memory context */
  48     DWORD            flags;            /* 20 Flags */
  49     void            *pdb16;            /* 24 DOS PSP */
  50     WORD             PSP_sel;          /* 28 Selector to DOS PSP */
  51     WORD             imte;             /* 2a IMTE for the process module */
  52     WORD             threads;          /* 2c Number of threads */
  53     WORD             running_threads;  /* 2e Number of running threads */
  54     WORD             free_lib_count;   /* 30 Recursion depth of FreeLibrary calls */
  55     WORD             ring0_threads;    /* 32 Number of ring 0 threads */
  56     HANDLE           system_heap;      /* 34 System heap to allocate handles */
  57     HTASK            task;             /* 38 Win16 task */
  58     void            *mem_map_files;    /* 3c Pointer to mem-mapped files */
  59     struct _ENVDB   *env_db;           /* 40 Environment database */
  60     void            *handle_table;     /* 44 Handle table */
  61     struct _PDB     *parent;           /* 48 Parent process */
  62     void            *modref_list;      /* 4c MODREF list */
  63     void            *thread_list;      /* 50 List of threads */
  64     void            *debuggee_CB;      /* 54 Debuggee context block */
  65     void            *local_heap_free;  /* 58 Head of local heap free list */
  66     DWORD            unknown4;         /* 5c Unknown */
  67     CRITICAL_SECTION crit_section;     /* 60 Critical section */
  68     DWORD            unknown5[3];      /* 78 Unknown */
  69     void            *console;          /* 84 Console */
  70     DWORD            tls_bits[2];      /* 88 TLS in-use bits */
  71     DWORD            process_dword;    /* 90 Unknown */
  72     struct _PDB     *group;            /* 94 Process group */
  73     void            *exe_modref;       /* 98 MODREF for the process EXE */
  74     void            *top_filter;       /* 9c Top exception filter */
  75     DWORD            priority;         /* a0 Priority level */
  76     HANDLE           heap_list;        /* a4 Head of process heap list */
  77     void            *heap_handles;     /* a8 Head of heap handles list */
  78     DWORD            unknown6;         /* ac Unknown */
  79     void            *console_provider; /* b0 Console provider (??) */
  80     WORD             env_selector;     /* b4 Selector to process environment */
  81     WORD             error_mode;       /* b6 Error mode */
  82     HANDLE           load_done_evt;    /* b8 Event for process loading done */
  83     void            *UTState;          /* bc Head of Univeral Thunk list */
  84     DWORD            unknown8;         /* c0 Unknown (NT) */
  85     LCID             locale;           /* c4 Locale to be queried by GetThreadLocale (NT) */
  86 } PDB;
  87
  88 PDB current_process;
  89
  90 /* Process flags */
  91 #define PDB32_DEBUGGED      0x0001  /* Process is being debugged */
  92 #define PDB32_WIN16_PROC    0x0008  /* Win16 process */
  93 #define PDB32_DOS_PROC      0x0010  /* Dos process */
  94 #define PDB32_CONSOLE_PROC  0x0020  /* Console process */
  95 #define PDB32_FILE_APIS_OEM 0x0040  /* File APIs are OEM */
  96 #define PDB32_WIN32S_PROC   0x8000  /* Win32s process */
  97
  98 static char **main_exe_argv;
  99 static char main_exe_name[MAX_PATH];
 100 static HANDLE main_exe_file = INVALID_HANDLE_VALUE;
 101
 102 unsigned int server_startticks;
 103
 104 /* memory/environ.c */
 105 extern struct _ENVDB *ENV_BuildEnvironment(void);
 106 extern BOOL ENV_BuildCommandLine( char **argv );
 107 extern STARTUPINFOA current_startupinfo;
 108
 109 extern BOOL MAIN_MainInit(void);
 110
 111
 112 /***********************************************************************
 113  *           PROCESS_CallUserSignalProc
 114  *
 115  * FIXME:  Some of the signals aren't sent correctly!
 116  *
 117  * The exact meaning of the USER signals is undocumented, but this
 118  * should cover the basic idea:
 119  *
 120  * USIG_DLL_UNLOAD_WIN16
 121  *     This is sent when a 16-bit module is unloaded.
 122  *
 123  * USIG_DLL_UNLOAD_WIN32
 124  *     This is sent when a 32-bit module is unloaded.
 125  *
 126  * USIG_DLL_UNLOAD_ORPHANS
 127  *     This is sent after the last Win3.1 module is unloaded,
 128  *     to allow removal of orphaned menus.
 129  *
 130  * USIG_FAULT_DIALOG_PUSH
 131  * USIG_FAULT_DIALOG_POP
 132  *     These are called to allow USER to prepare for displaying a
 133  *     fault dialog, even though the fault might have happened while
 134  *     inside a USER critical section.
 135  *
 136  * USIG_THREAD_INIT
 137  *     This is called from the context of a new thread, as soon as it
 138  *     has started to run.
 139  *
 140  * USIG_THREAD_EXIT
 141  *     This is called, still in its context, just before a thread is
 142  *     about to terminate.
 143  *
 144  * USIG_PROCESS_CREATE
 145  *     This is called, in the parent process context, after a new process
 146  *     has been created.
 147  *
 148  * USIG_PROCESS_INIT
 149  *     This is called in the new process context, just after the main thread
 150  *     has started execution (after the main thread's USIG_THREAD_INIT has
 151  *     been sent).
 152  *
 153  * USIG_PROCESS_LOADED
 154  *     This is called after the executable file has been loaded into the
 155  *     new process context.
 156  *
 157  * USIG_PROCESS_RUNNING
 158  *     This is called immediately before the main entry point is called.
 159  *
 160  * USIG_PROCESS_EXIT
 161  *     This is called in the context of a process that is about to
 162  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 163  *     been sent).
 164  *
 165  * USIG_PROCESS_DESTROY
 166  *     This is called after a process has terminated.
 167  *
 168  *
 169  * The meaning of the dwFlags bits is as follows:
 170  *
 171  * USIG_FLAGS_WIN32
 172  *     Current process is 32-bit.
 173  *
 174  * USIG_FLAGS_GUI
 175  *     Current process is a (Win32) GUI process.
 176  *
 177  * USIG_FLAGS_FEEDBACK
 178  *     Current process needs 'feedback' (determined from the STARTUPINFO
 179  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 180  *
 181  * USIG_FLAGS_FAULT
 182  *     The signal is being sent due to a fault.
 183  */
 184 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 185 {
 186     DWORD flags = current_process.flags;
 187     DWORD startup_flags = current_startupinfo.dwFlags;
 188     DWORD dwFlags = 0;
 189
 190     /* Determine dwFlags */
 191
 192     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 193
 194     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 195
 196     if ( dwFlags & USIG_FLAGS_GUI )
 197     {
 198         /* Feedback defaults to ON */
 199         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 200             dwFlags |= USIG_FLAGS_FEEDBACK;
 201     }
 202     else
 203     {
 204         /* Feedback defaults to OFF */
 205         if (startup_flags & STARTF_FORCEONFEEDBACK)
 206             dwFlags |= USIG_FLAGS_FEEDBACK;
 207     }
 208
 209     /* Convert module handle to 16-bit */
 210
 211     if ( HIWORD( hModule ) )
 212         hModule = MapHModuleLS( hModule );
 213
 214     /* Call USER signal proc */
 215
 216     if ( Callout.UserSignalProc )
 217     {
 218         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 219             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 220         else
 221             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 222     }
 223 }
 224
 225
 226 /***********************************************************************
 227  *           process_init
 228  *
 229  * Main process initialisation code
 230  */
 231 static BOOL process_init( char *argv[] )
 232 {
 233     BOOL ret;
 234
 235     /* store the program name */
 236     argv0 = argv[0];
 237     main_exe_argv = argv;
 238
 239     /* Fill the initial process structure */
 240     current_process.exit_code       = STILL_ACTIVE;
 241     current_process.threads         = 1;
 242     current_process.running_threads = 1;
 243     current_process.ring0_threads   = 1;
 244     current_process.group           = &current_process;
 245     current_process.priority        = 8;  /* Normal */
 246
 247     /* Setup the server connection */
 248     NtCurrentTeb()->socket = CLIENT_InitServer();
 249     if (CLIENT_InitThread()) return FALSE;
 250
 251     /* Retrieve startup info from the server */
 252     SERVER_START_REQ
 253     {
 254         struct init_process_request *req = server_alloc_req( sizeof(*req),
 255                                                              sizeof(main_exe_name)-1 );
 256
 257         req->ldt_copy  = &wine_ldt_copy;
 258         req->ppid      = getppid();
 259         if ((ret = !server_call( REQ_INIT_PROCESS )))
 260         {
 261             size_t len = server_data_size( req );
 262             memcpy( main_exe_name, server_data_ptr(req), len );
 263             main_exe_name[len] = 0;
 264             main_exe_file = req->exe_file;
 265             current_startupinfo.dwFlags     = req->start_flags;
 266             server_startticks               = req->server_start;
 267             current_startupinfo.wShowWindow = req->cmd_show;
 268             current_startupinfo.hStdInput   = req->hstdin;
 269             current_startupinfo.hStdOutput  = req->hstdout;
 270             current_startupinfo.hStdError   = req->hstderr;
 271             SetStdHandle( STD_INPUT_HANDLE,  current_startupinfo.hStdInput );
 272             SetStdHandle( STD_OUTPUT_HANDLE, current_startupinfo.hStdOutput );
 273             SetStdHandle( STD_ERROR_HANDLE,  current_startupinfo.hStdError );
 274         }
 275     }
 276     SERVER_END_REQ;
 277     if (!ret) return FALSE;
 278
 279     /* Create the system and process heaps */
 280     if (!HEAP_CreateSystemHeap()) return FALSE;
 281     current_process.heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 282
 283     /* Copy the parent environment */
 284     if (!(current_process.env_db = ENV_BuildEnvironment())) return FALSE;
 285
 286     /* Parse command line arguments */
 287     OPTIONS_ParseOptions( argv );
 288
 289     return MAIN_MainInit();
 290 }
 291
 292
 293 /***********************************************************************
 294  *           start_process
 295  *
 296  * Startup routine of a new process. Runs on the new process stack.
 297  */
 298 static void start_process(void)
 299 {
 300     int debugged, console_app;
 301     LPTHREAD_START_ROUTINE entry;
 302     WINE_MODREF *wm;
 303
 304     /* build command line */
 305     if (!ENV_BuildCommandLine( main_exe_argv )) goto error;
 306
 307     /* create 32-bit module for main exe */
 308     if (!(current_process.module = BUILTIN32_LoadExeModule( current_process.module ))) goto error;
 309
 310     /* use original argv[0] as name for the main module */
 311     if (!main_exe_name[0])
 312     {
 313         if (!GetLongPathNameA( full_argv0, main_exe_name, sizeof(main_exe_name) ))
 314             lstrcpynA( main_exe_name, full_argv0, sizeof(main_exe_name) );
 315     }
 316
 317     /* Retrieve entry point address */
 318     entry = (LPTHREAD_START_ROUTINE)((char*)current_process.module +
 319                          PE_HEADER(current_process.module)->OptionalHeader.AddressOfEntryPoint);
 320     console_app = (PE_HEADER(current_process.module)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
 321     if (console_app) current_process.flags |= PDB32_CONSOLE_PROC;
 322
 323     /* Signal the parent process to continue */
 324     SERVER_START_REQ
 325     {
 326         struct init_process_done_request *req = server_alloc_req( sizeof(*req), 0 );
 327         req->module = (void *)current_process.module;
 328         req->entry  = entry;
 329         req->name   = main_exe_name;
 330         req->gui    = !console_app;
 331         server_call( REQ_INIT_PROCESS_DONE );
 332         debugged = req->debugged;
 333     }
 334     SERVER_END_REQ;
 335
 336     /* Install signal handlers; this cannot be done before, since we cannot
 337      * send exceptions to the debugger before the create process event that
 338      * is sent by REQ_INIT_PROCESS_DONE */
 339     if (!SIGNAL_Init()) goto error;
 340
 341     /* create the main modref and load dependencies */
 342     if (!(wm = PE_CreateModule( current_process.module, main_exe_name, 0, main_exe_file, FALSE )))
 343         goto error;
 344     wm->refCount++;
 345
 346     RtlAcquirePebLock();
 347     PE_InitTls();
 348     MODULE_DllProcessAttach( NULL, (LPVOID)1 );
 349     RtlReleasePebLock();
 350
 351     /* Get pointers to USER routines called by KERNEL */
 352     THUNK_InitCallout();
 353
 354     /* Call FinalUserInit routine */
 355     if (Callout.FinalUserInit16) Callout.FinalUserInit16();
 356
 357     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 358      *       context of the parent process.  Actually, the USER signal proc
 359      *       doesn't really care about that, but it *does* require that the
 360      *       startup parameters are correctly set up, so that GetProcessDword
 361      *       works.  Furthermore, before calling the USER signal proc the
 362      *       16-bit stack must be set up, which it is only after TASK_Create
 363      *       in the case of a 16-bit process. Thus, we send the signal here.
 364      */
 365     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 366     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 367     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 368     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 369     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 370     if (console_app) PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 371
 372     TRACE_(relay)( "Starting Win32 process %s (entryproc=%p)\n", main_exe_name, entry );
 373     if (debugged) DbgBreakPoint();
 374     /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 375      * Dunno about other OSs */
 376     SetLastError(0);  /* clear error code */
 377     ExitThread( entry(NULL) );
 378
 379  error:
 380     ExitProcess( GetLastError() );
 381 }
 382
 383
 384 /***********************************************************************
 385  *           open_winelib_app
 386  *
 387  * Try to open the Winelib app .so file based on argv[0] or WINEPRELOAD.
 388  */
 389 void *open_winelib_app( char *argv[] )
 390 {
 391     void *ret = NULL;
 392     char *tmp;
 393     const char *name;
 394
 395     if ((name = getenv( "WINEPRELOAD" )))
 396     {
 397         if (!(ret = wine_dll_load_main_exe( name, 0 )))
 398         {
 399             MESSAGE( "%s: could not load '%s' as specified in the WINEPRELOAD environment variable\n",
 400                      argv[0], name );
 401             ExitProcess(1);
 402         }
 403     }
 404     else
 405     {
 406         /* if argv[0] is "wine", don't try to load anything */
 407         if (!(name = strrchr( argv[0], '/' ))) name = argv[0];
 408         else name++;
 409         if (!strcmp( name, "wine" )) return NULL;
 410
 411         /* now try argv[0] with ".so" appended */
 412         if ((tmp = HeapAlloc( GetProcessHeap(), 0, strlen(argv[0]) + 4 )))
 413         {
 414             strcpy( tmp, argv[0] );
 415             strcat( tmp, ".so" );
 416             /* search in PATH only if there was no '/' in argv[0] */
 417             ret = wine_dll_load_main_exe( tmp, (name == argv[0]) );
 418             if (!ret && !argv[1])
 419             {
 420                 /* if no argv[1], this will be better than displaying usage */
 421                 MESSAGE( "%s: could not load library '%s' as Winelib application\n",
 422                          argv[0], tmp );
 423                 ExitProcess(1);
 424             }
 425             HeapFree( GetProcessHeap(), 0, tmp );
 426         }
 427     }
 428     return ret;
 429 }
 430
 431 /***********************************************************************
 432  *           PROCESS_InitWine
 433  *
 434  * Wine initialisation: load and start the main exe file.
 435  */
 436 void PROCESS_InitWine( int argc, char *argv[] )
 437 {
 438     DWORD stack_size = 0;
 439
 440     /* Initialize everything */
 441     if (!process_init( argv )) exit(1);
 442
 443     if (open_winelib_app( argv )) goto found; /* try to open argv[0] as a winelib app */
 444
 445     main_exe_argv = ++argv;  /* remove argv[0] (wine itself) */
 446
 447     if (!main_exe_name[0])
 448     {
 449         if (!argv[0]) OPTIONS_Usage();
 450
 451         /* open the exe file */
 452         if (!SearchPathA( NULL, argv[0], ".exe", sizeof(main_exe_name), main_exe_name, NULL ) &&
 453             !SearchPathA( NULL, argv[0], NULL, sizeof(main_exe_name), main_exe_name, NULL ))
 454         {
 455             MESSAGE( "%s: cannot find '%s'\n", argv0, argv[0] );
 456             goto error;
 457         }
 458     }
 459
 460     if (main_exe_file == INVALID_HANDLE_VALUE)
 461     {
 462         if ((main_exe_file = CreateFileA( main_exe_name, GENERIC_READ, FILE_SHARE_READ,
 463                                           NULL, OPEN_EXISTING, 0, -1 )) == INVALID_HANDLE_VALUE)
 464         {
 465             MESSAGE( "%s: cannot open '%s'\n", argv0, main_exe_name );
 466             goto error;
 467         }
 468     }
 469
 470     /* first try Win32 format; this will fail if the file is not a PE binary */
 471     if ((current_process.module = PE_LoadImage( main_exe_file, main_exe_name, 0 )))
 472     {
 473         if (PE_HEADER(current_process.module)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 474             ExitProcess( ERROR_BAD_EXE_FORMAT );
 475         stack_size = PE_HEADER(current_process.module)->OptionalHeader.SizeOfStackReserve;
 476         goto found;
 477     }
 478
 479     /* it must be 16-bit or DOS format */
 480     NtCurrentTeb()->tibflags &= ~TEBF_WIN32;
 481     current_process.flags |= PDB32_WIN16_PROC;
 482     main_exe_name[0] = 0;
 483     CloseHandle( main_exe_file );
 484     main_exe_file = INVALID_HANDLE_VALUE;
 485     _EnterWin16Lock();
 486
 487  found:
 488     /* allocate main thread stack */
 489     if (!THREAD_InitStack( NtCurrentTeb(), stack_size, TRUE )) goto error;
 490
 491     /* switch to the new stack */
 492     SYSDEPS_SwitchToThreadStack( start_process );
 493
 494  error:
 495     ExitProcess( GetLastError() );
 496 }
 497
 498
 499 /***********************************************************************
 500  *           PROCESS_InitWinelib
 501  *
 502  * Initialisation of a new Winelib process.
 503  */
 504 void PROCESS_InitWinelib( int argc, char *argv[] )
 505 {
 506     if (!process_init( argv )) exit(1);
 507
 508     /* allocate main thread stack */
 509     if (!THREAD_InitStack( NtCurrentTeb(), 0, TRUE )) ExitProcess( GetLastError() );
 510
 511     /* switch to the new stack */
 512     SYSDEPS_SwitchToThreadStack( start_process );
 513 }
 514
 515
 516 /***********************************************************************
 517  *           build_argv
 518  *
 519  * Build an argv array from a command-line.
 520  * The command-line is modified to insert nulls.
 521  * 'reserved' is the number of args to reserve before the first one.
 522  */
 523 static char **build_argv( char *cmdline, int reserved )
 524 {
 525     char **argv;
 526     int count = reserved + 1;
 527     char *p = cmdline;
 528
 529     /* if first word is quoted store it as a single arg */
 530     if (*cmdline == '\"')
 531     {
 532         if ((p = strchr( cmdline + 1, '\"' )))
 533         {
 534             p++;
 535             count++;
 536         }
 537         else p = cmdline;
 538     }
 539     while (*p)
 540     {
 541         while (*p && isspace(*p)) p++;
 542         if (!*p) break;
 543         count++;
 544         while (*p && !isspace(*p)) p++;
 545     }
 546
 547     if ((argv = malloc( count * sizeof(*argv) )))
 548     {
 549         char **argvptr = argv + reserved;
 550         p = cmdline;
 551         if (*cmdline == '\"')
 552         {
 553             if ((p = strchr( cmdline + 1, '\"' )))
 554             {
 555                 *argvptr++ = cmdline + 1;
 556                 *p++ = 0;
 557             }
 558             else p = cmdline;
 559         }
 560         while (*p)
 561         {
 562             while (*p && isspace(*p)) *p++ = 0;
 563             if (!*p) break;
 564             *argvptr++ = p;
 565             while (*p && !isspace(*p)) p++;
 566         }
 567         *argvptr = 0;
 568     }
 569     return argv;
 570 }
 571
 572
 573 /***********************************************************************
 574  *           build_envp
 575  *
 576  * Build the environment of a new child process.
 577  */
 578 static char **build_envp( const char *env, const char *extra_env )
 579 {
 580     const char *p;
 581     char **envp;
 582     int count = 0;
 583
 584     if (extra_env) for (p = extra_env; *p; count++) p += strlen(p) + 1;
 585     for (p = env; *p; count++) p += strlen(p) + 1;
 586     count += 3;
 587
 588     if ((envp = malloc( count * sizeof(*envp) )))
 589     {
 590         extern char **environ;
 591         char **envptr = envp;
 592         char **unixptr = environ;
 593         /* first the extra strings */
 594         if (extra_env) for (p = extra_env; *p; p += strlen(p) + 1) *envptr++ = (char *)p;
 595         /* then put PATH, HOME and WINEPREFIX from the unix env */
 596         for (unixptr = environ; unixptr && *unixptr; unixptr++)
 597             if (!memcmp( *unixptr, "PATH=", 5 ) ||
 598                 !memcmp( *unixptr, "HOME=", 5 ) ||
 599                 !memcmp( *unixptr, "WINEPREFIX=", 11 )) *envptr++ = *unixptr;
 600         /* now put the Windows environment strings */
 601         for (p = env; *p; p += strlen(p) + 1)
 602         {
 603             if (memcmp( p, "PATH=", 5 ) &&
 604                 memcmp( p, "HOME=", 5 ) &&
 605                 memcmp( p, "WINEPRELOAD=", 12 ) &&
 606                 memcmp( p, "WINEPREFIX=", 11 )) *envptr++ = (char *)p;
 607         }
 608         *envptr = 0;
 609     }
 610     return envp;
 611 }
 612
 613
 614 /***********************************************************************
 615  *           exec_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 for a WINELOADER environment variable */
 624     argv[0] = getenv("WINELOADER");
 625     if (argv[0])
 626         execve( argv[0], argv, envp );
 627
 628     /* next, try bin directory */
 629     argv[0] = BINDIR "/wine";
 630     execve( argv[0], argv, envp );
 631
 632     /* now try the path of argv0 of the current binary */
 633     if (!(argv[0] = malloc( strlen(full_argv0) + 6 ))) return;
 634     if ((ptr = strrchr( full_argv0, '/' )))
 635     {
 636         memcpy( argv[0], full_argv0, ptr - full_argv0 );
 637         strcpy( argv[0] + (ptr - full_argv0), "/wine" );
 638         execve( argv[0], argv, envp );
 639     }
 640     free( argv[0] );
 641
 642     /* now search in the Unix path */
 643     if ((path = getenv( "PATH" )))
 644     {
 645         if (!(argv[0] = malloc( strlen(path) + 6 ))) return;
 646         pos = path;
 647         for (;;)
 648         {
 649             while (*pos == ':') pos++;
 650             if (!*pos) break;
 651             if (!(ptr = strchr( pos, ':' ))) ptr = pos + strlen(pos);
 652             memcpy( argv[0], pos, ptr - pos );
 653             strcpy( argv[0] + (ptr - pos), "/wine" );
 654             execve( argv[0], argv, envp );
 655             pos = ptr;
 656         }
 657     }
 658     free( argv[0] );
 659
 660     /* finally try the current directory */
 661     argv[0] = "./wine";
 662     execve( argv[0], argv, envp );
 663 }
 664
 665
 666 /***********************************************************************
 667  *           fork_and_exec
 668  *
 669  * Fork and exec a new Unix process, checking for errors.
 670  */
 671 static int fork_and_exec( const char *filename, char *cmdline,
 672                           const char *env, const char *newdir )
 673 {
 674     int fd[2];
 675     int pid, err;
 676     char *extra_env = NULL;
 677
 678     if (!env)
 679     {
 680         env = GetEnvironmentStringsA();
 681         extra_env = DRIVE_BuildEnv();
 682     }
 683
 684     if (pipe(fd) == -1)
 685     {
 686         FILE_SetDosError();
 687         return -1;
 688     }
 689     fcntl( fd[1], F_SETFD, 1 );  /* set close on exec */
 690     if (!(pid = fork()))  /* child */
 691     {
 692         char **argv = build_argv( cmdline, filename ? 0 : 2 );
 693         char **envp = build_envp( env, extra_env );
 694         close( fd[0] );
 695
 696         if (newdir) chdir(newdir);
 697
 698         if (argv && envp)
 699         {
 700             if (!filename)
 701             {
 702                 argv[1] = "--";
 703                 exec_wine_binary( argv, envp );
 704             }
 705             else execve( filename, argv, envp );
 706         }
 707         err = errno;
 708         write( fd[1], &err, sizeof(err) );
 709         _exit(1);
 710     }
 711     close( fd[1] );
 712     if ((pid != -1) && (read( fd[0], &err, sizeof(err) ) > 0))  /* exec failed */
 713     {
 714         errno = err;
 715         pid = -1;
 716     }
 717     if (pid == -1) FILE_SetDosError();
 718     close( fd[0] );
 719     if (extra_env) HeapFree( GetProcessHeap(), 0, extra_env );
 720     return pid;
 721 }
 722
 723
 724 /***********************************************************************
 725  *           PROCESS_Create
 726  *
 727  * Create a new process. If hFile is a valid handle we have an exe
 728  * file, and we exec a new copy of wine to load it; otherwise we
 729  * simply exec the specified filename as a Unix process.
 730  */
 731 BOOL PROCESS_Create( HFILE hFile, LPCSTR filename, LPSTR cmd_line, LPCSTR env,
 732                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 733                      BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
 734                      LPPROCESS_INFORMATION info, LPCSTR lpCurrentDirectory )
 735 {
 736     BOOL ret;
 737     int pid;
 738     const char *unixfilename = NULL;
 739     const char *unixdir = NULL;
 740     DOS_FULL_NAME full_name;
 741     HANDLE load_done_evt = (HANDLE)-1;
 742
 743     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 744
 745     if (lpCurrentDirectory)
 746     {
 747         if (DOSFS_GetFullName( lpCurrentDirectory, TRUE, &full_name ))
 748             unixdir = full_name.long_name;
 749     }
 750     else
 751     {
 752         char buf[MAX_PATH];
 753         if (GetCurrentDirectoryA(sizeof(buf),buf))
 754         {
 755             if (DOSFS_GetFullName( buf, TRUE, &full_name ))
 756                 unixdir = full_name.long_name;
 757         }
 758     }
 759
 760     /* create the process on the server side */
 761
 762     SERVER_START_REQ
 763     {
 764         size_t len = (hFile == -1) ? 0 : MAX_PATH;
 765         struct new_process_request *req = server_alloc_req( sizeof(*req), len );
 766         req->inherit_all  = inherit;
 767         req->create_flags = flags;
 768         req->start_flags  = startup->dwFlags;
 769         req->exe_file     = hFile;
 770         if (startup->dwFlags & STARTF_USESTDHANDLES)
 771         {
 772             req->hstdin  = startup->hStdInput;
 773             req->hstdout = startup->hStdOutput;
 774             req->hstderr = startup->hStdError;
 775         }
 776         else
 777         {
 778             req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 779             req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 780             req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 781         }
 782         req->cmd_show = startup->wShowWindow;
 783         req->alloc_fd = 0;
 784
 785         if (hFile == -1)  /* unix process */
 786         {
 787             unixfilename = filename;
 788             if (DOSFS_GetFullName( filename, TRUE, &full_name ))
 789                 unixfilename = full_name.long_name;
 790         }
 791         else  /* new wine process */
 792         {
 793             if (!GetLongPathNameA( filename, server_data_ptr(req), MAX_PATH ))
 794                 lstrcpynA( server_data_ptr(req), filename, MAX_PATH );
 795         }
 796         ret = !server_call( REQ_NEW_PROCESS );
 797     }
 798     SERVER_END_REQ;
 799     if (!ret) return FALSE;
 800
 801     /* fork and execute */
 802
 803     pid = fork_and_exec( unixfilename, cmd_line, env, unixdir );
 804
 805     SERVER_START_REQ
 806     {
 807         struct wait_process_request *req = server_alloc_req( sizeof(*req), 0 );
 808         req->cancel   = (pid == -1);
 809         req->pinherit = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 810         req->tinherit = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 811         req->timeout  = 2000;
 812         if ((ret = !server_call( REQ_WAIT_PROCESS )) && (pid != -1))
 813         {
 814             info->dwProcessId = (DWORD)req->pid;
 815             info->dwThreadId  = (DWORD)req->tid;
 816             info->hProcess    = req->phandle;
 817             info->hThread     = req->thandle;
 818             load_done_evt     = req->event;
 819         }
 820     }
 821     SERVER_END_REQ;
 822     if (!ret || (pid == -1)) goto error;
 823
 824     /* Wait until process is initialized (or initialization failed) */
 825     if (load_done_evt != (HANDLE)-1)
 826     {
 827         DWORD res;
 828         HANDLE handles[2];
 829
 830         handles[0] = info->hProcess;
 831         handles[1] = load_done_evt;
 832         res = WaitForMultipleObjects( 2, handles, FALSE, INFINITE );
 833         CloseHandle( load_done_evt );
 834         if (res == STATUS_WAIT_0)  /* the process died */
 835         {
 836             DWORD exitcode;
 837             if (GetExitCodeProcess( info->hProcess, &exitcode )) SetLastError( exitcode );
 838             CloseHandle( info->hThread );
 839             CloseHandle( info->hProcess );
 840             return FALSE;
 841         }
 842     }
 843     return TRUE;
 844
 845 error:
 846     if (load_done_evt != (HANDLE)-1) CloseHandle( load_done_evt );
 847     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 848     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 849     return FALSE;
 850 }
 851
 852
 853 /***********************************************************************
 854  *           ExitProcess   (KERNEL32.100)
 855  */
 856 void WINAPI ExitProcess( DWORD status )
 857 {
 858     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 859     SERVER_START_REQ
 860     {
 861         struct terminate_process_request *req = server_alloc_req( sizeof(*req), 0 );
 862         /* send the exit code to the server */
 863         req->handle    = GetCurrentProcess();
 864         req->exit_code = status;
 865         server_call( REQ_TERMINATE_PROCESS );
 866     }
 867     SERVER_END_REQ;
 868     exit( status );
 869 }
 870
 871 /***********************************************************************
 872  *           ExitProcess16   (KERNEL.466)
 873  */
 874 void WINAPI ExitProcess16( WORD status )
 875 {
 876     DWORD count;
 877     ReleaseThunkLock( &count );
 878     ExitProcess( status );
 879 }
 880
 881 /******************************************************************************
 882  *           TerminateProcess   (KERNEL32.684)
 883  */
 884 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 885 {
 886     NTSTATUS status = NtTerminateProcess( handle, exit_code );
 887     if (status) SetLastError( RtlNtStatusToDosError(status) );
 888     return !status;
 889 }
 890
 891
 892 /***********************************************************************
 893  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 894  * 'Of course you cannot directly access Windows internal structures'
 895  */
 896 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 897 {
 898     TDB *pTask;
 899     DWORD x, y;
 900
 901     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 902
 903     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 904     {
 905         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 906         return 0;
 907     }
 908
 909     switch ( offset )
 910     {
 911     case GPD_APP_COMPAT_FLAGS:
 912         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 913         return pTask? pTask->compat_flags : 0;
 914
 915     case GPD_LOAD_DONE_EVENT:
 916         return current_process.load_done_evt;
 917
 918     case GPD_HINSTANCE16:
 919         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 920         return pTask? pTask->hInstance : 0;
 921
 922     case GPD_WINDOWS_VERSION:
 923         pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 924         return pTask? pTask->version : 0;
 925
 926     case GPD_THDB:
 927         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 928
 929     case GPD_PDB:
 930         return (DWORD)&current_process;
 931
 932     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 933         return current_startupinfo.hStdOutput;
 934
 935     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 936         return current_startupinfo.hStdInput;
 937
 938     case GPD_STARTF_SHOWWINDOW:
 939         return current_startupinfo.wShowWindow;
 940
 941     case GPD_STARTF_SIZE:
 942         x = current_startupinfo.dwXSize;
 943         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 944         y = current_startupinfo.dwYSize;
 945         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 946         return MAKELONG( x, y );
 947
 948     case GPD_STARTF_POSITION:
 949         x = current_startupinfo.dwX;
 950         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 951         y = current_startupinfo.dwY;
 952         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 953         return MAKELONG( x, y );
 954
 955     case GPD_STARTF_FLAGS:
 956         return current_startupinfo.dwFlags;
 957
 958     case GPD_PARENT:
 959         return 0;
 960
 961     case GPD_FLAGS:
 962         return current_process.flags;
 963
 964     case GPD_USERDATA:
 965         return current_process.process_dword;
 966
 967     default:
 968         ERR_(win32)("Unknown offset %d\n", offset );
 969         return 0;
 970     }
 971 }
 972
 973 /***********************************************************************
 974  *           SetProcessDword    (KERNEL.484)
 975  * 'Of course you cannot directly access Windows internal structures'
 976  */
 977 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 978 {
 979     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 980
 981     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 982     {
 983         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 984         return;
 985     }
 986
 987     switch ( offset )
 988     {
 989     case GPD_APP_COMPAT_FLAGS:
 990     case GPD_LOAD_DONE_EVENT:
 991     case GPD_HINSTANCE16:
 992     case GPD_WINDOWS_VERSION:
 993     case GPD_THDB:
 994     case GPD_PDB:
 995     case GPD_STARTF_SHELLDATA:
 996     case GPD_STARTF_HOTKEY:
 997     case GPD_STARTF_SHOWWINDOW:
 998     case GPD_STARTF_SIZE:
 999     case GPD_STARTF_POSITION:
1000     case GPD_STARTF_FLAGS:
1001     case GPD_PARENT:
1002     case GPD_FLAGS:
1003         ERR_(win32)("Not allowed to modify offset %d\n", offset );
1004         break;
1005
1006     case GPD_USERDATA:
1007         current_process.process_dword = value;
1008         break;
1009
1010     default:
1011         ERR_(win32)("Unknown offset %d\n", offset );
1012         break;
1013     }
1014 }
1015
1016
1017 /*********************************************************************
1018  *           OpenProcess   (KERNEL32.543)
1019  */
1020 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
1021 {
1022     HANDLE ret = 0;
1023     SERVER_START_REQ
1024     {
1025         struct open_process_request *req = server_alloc_req( sizeof(*req), 0 );
1026
1027         req->pid     = (void *)id;
1028         req->access  = access;
1029         req->inherit = inherit;
1030         if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
1031     }
1032     SERVER_END_REQ;
1033     return ret;
1034 }
1035
1036 /*********************************************************************
1037  *           MapProcessHandle   (KERNEL.483)
1038  */
1039 DWORD WINAPI MapProcessHandle( HANDLE handle )
1040 {
1041     DWORD ret = 0;
1042     SERVER_START_REQ
1043     {
1044         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1045         req->handle = handle;
1046         if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
1047     }
1048     SERVER_END_REQ;
1049     return ret;
1050 }
1051
1052 /***********************************************************************
1053  *           SetPriorityClass   (KERNEL32.503)
1054  */
1055 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
1056 {
1057     BOOL ret;
1058     SERVER_START_REQ
1059     {
1060         struct set_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1061         req->handle   = hprocess;
1062         req->priority = priorityclass;
1063         req->mask     = SET_PROCESS_INFO_PRIORITY;
1064         ret = !server_call( REQ_SET_PROCESS_INFO );
1065     }
1066     SERVER_END_REQ;
1067     return ret;
1068 }
1069
1070
1071 /***********************************************************************
1072  *           GetPriorityClass   (KERNEL32.250)
1073  */
1074 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
1075 {
1076     DWORD ret = 0;
1077     SERVER_START_REQ
1078     {
1079         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1080         req->handle = hprocess;
1081         if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
1082     }
1083     SERVER_END_REQ;
1084     return ret;
1085 }
1086
1087
1088 /***********************************************************************
1089  *          SetProcessAffinityMask   (KERNEL32.662)
1090  */
1091 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
1092 {
1093     BOOL ret;
1094     SERVER_START_REQ
1095     {
1096         struct set_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1097         req->handle   = hProcess;
1098         req->affinity = affmask;
1099         req->mask     = SET_PROCESS_INFO_AFFINITY;
1100         ret = !server_call( REQ_SET_PROCESS_INFO );
1101     }
1102     SERVER_END_REQ;
1103     return ret;
1104 }
1105
1106 /**********************************************************************
1107  *          GetProcessAffinityMask    (KERNEL32.373)
1108  */
1109 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
1110                                       LPDWORD lpProcessAffinityMask,
1111                                       LPDWORD lpSystemAffinityMask )
1112 {
1113     BOOL ret = FALSE;
1114     SERVER_START_REQ
1115     {
1116         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1117         req->handle = hProcess;
1118         if (!server_call( REQ_GET_PROCESS_INFO ))
1119         {
1120             if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
1121             if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
1122             ret = TRUE;
1123         }
1124     }
1125     SERVER_END_REQ;
1126     return ret;
1127 }
1128
1129
1130 /***********************************************************************
1131  *           GetProcessVersion    (KERNEL32)
1132  */
1133 DWORD WINAPI GetProcessVersion( DWORD processid )
1134 {
1135     IMAGE_NT_HEADERS *nt;
1136
1137     if (processid && processid != GetCurrentProcessId())
1138         return 0;  /* FIXME: should use ReadProcessMemory */
1139     if ((nt = RtlImageNtHeader( current_process.module )))
1140         return ((nt->OptionalHeader.MajorSubsystemVersion << 16) |
1141                 nt->OptionalHeader.MinorSubsystemVersion);
1142     return 0;
1143 }
1144
1145 /***********************************************************************
1146  *           GetProcessFlags    (KERNEL32)
1147  */
1148 DWORD WINAPI GetProcessFlags( DWORD processid )
1149 {
1150     if (processid && processid != GetCurrentProcessId()) return 0;
1151     return current_process.flags;
1152 }
1153
1154
1155 /***********************************************************************
1156  *              SetProcessWorkingSetSize        [KERNEL32.662]
1157  * Sets the min/max working set sizes for a specified process.
1158  *
1159  * PARAMS
1160  *    hProcess [I] Handle to the process of interest
1161  *    minset   [I] Specifies minimum working set size
1162  *    maxset   [I] Specifies maximum working set size
1163  *
1164  * RETURNS  STD
1165  */
1166 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1167                                        DWORD maxset)
1168 {
1169     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1170     if(( minset == (DWORD)-1) && (maxset == (DWORD)-1)) {
1171         /* Trim the working set to zero */
1172         /* Swap the process out of physical RAM */
1173     }
1174     return TRUE;
1175 }
1176
1177 /***********************************************************************
1178  *           GetProcessWorkingSetSize    (KERNEL32)
1179  */
1180 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1181                                        LPDWORD maxset)
1182 {
1183         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1184         /* 32 MB working set size */
1185         if (minset) *minset = 32*1024*1024;
1186         if (maxset) *maxset = 32*1024*1024;
1187         return TRUE;
1188 }
1189
1190 /***********************************************************************
1191  *           SetProcessShutdownParameters    (KERNEL32)
1192  *
1193  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1194  * Now tracks changes made (but does not act on these changes)
1195  */
1196 static DWORD shutdown_flags = 0;
1197 static DWORD shutdown_priority = 0x280;
1198
1199 BOOL WINAPI SetProcessShutdownParameters(DWORD level, DWORD flags)
1200 {
1201     FIXME("(%08lx, %08lx): partial stub.\n", level, flags);
1202     shutdown_flags = flags;
1203     shutdown_priority = level;
1204     return TRUE;
1205 }
1206
1207
1208 /***********************************************************************
1209  * GetProcessShutdownParameters                 (KERNEL32)
1210  *
1211  */
1212 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel, LPDWORD lpdwFlags )
1213 {
1214     *lpdwLevel = shutdown_priority;
1215     *lpdwFlags = shutdown_flags;
1216     return TRUE;
1217 }
1218
1219
1220 /***********************************************************************
1221  *           SetProcessPriorityBoost    (KERNEL32)
1222  */
1223 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1224 {
1225     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1226     /* Say we can do it. I doubt the program will notice that we don't. */
1227     return TRUE;
1228 }
1229
1230
1231 /***********************************************************************
1232  *           ReadProcessMemory                  (KERNEL32)
1233  */
1234 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1235                                LPDWORD bytes_read )
1236 {
1237     unsigned int offset = (unsigned int)addr % sizeof(int);
1238     unsigned int pos = 0, len, max;
1239     int res;
1240
1241     if (bytes_read) *bytes_read = size;
1242
1243     /* first time, read total length to check for permissions */
1244     len = (size + offset + sizeof(int) - 1) / sizeof(int);
1245     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1246
1247     for (;;)
1248     {
1249         SERVER_START_REQ
1250         {
1251             struct read_process_memory_request *req = server_alloc_req( sizeof(*req), max );
1252             req->handle = process;
1253             req->addr   = (char *)addr + pos - offset;
1254             req->len    = len;
1255             if (!(res = server_call( REQ_READ_PROCESS_MEMORY )))
1256             {
1257                 size_t result = server_data_size( req );
1258                 if (result > size + offset) result = size + offset;
1259                 memcpy( (char *)buffer + pos, server_data_ptr(req) + offset, result - offset );
1260                 size -= result - offset;
1261                 pos += result - offset;
1262             }
1263         }
1264         SERVER_END_REQ;
1265         if (res)
1266         {
1267             if (bytes_read) *bytes_read = 0;
1268             return FALSE;
1269         }
1270         if (!size) return TRUE;
1271         max = min( REQUEST_MAX_VAR_SIZE, size );
1272         len = (max + sizeof(int) - 1) / sizeof(int);
1273         offset = 0;
1274     }
1275 }
1276
1277
1278 /***********************************************************************
1279  *           WriteProcessMemory                 (KERNEL32)
1280  */
1281 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1282                                 LPDWORD bytes_written )
1283 {
1284     unsigned int first_offset, last_offset;
1285     unsigned int pos = 0, len, max, first_mask, last_mask;
1286     int res;
1287
1288     if (!size)
1289     {
1290         SetLastError( ERROR_INVALID_PARAMETER );
1291         return FALSE;
1292     }
1293     if (bytes_written) *bytes_written = size;
1294
1295     /* compute the mask for the first int */
1296     first_mask = ~0;
1297     first_offset = (unsigned int)addr % sizeof(int);
1298     memset( &first_mask, 0, first_offset );
1299
1300     /* compute the mask for the last int */
1301     last_offset = (size + first_offset) % sizeof(int);
1302     last_mask = 0;
1303     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1304
1305     /* for the first request, use the total length */
1306     len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1307     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1308
1309     for (;;)
1310     {
1311         SERVER_START_REQ
1312         {
1313             struct write_process_memory_request *req = server_alloc_req( sizeof(*req), max );
1314             req->handle = process;
1315             req->addr = (char *)addr - first_offset + pos;
1316             req->len = len;
1317             req->first_mask = (!pos) ? first_mask : ~0;
1318             if (size + first_offset <= max)  /* last round */
1319             {
1320                 req->last_mask = last_mask;
1321                 max = size + first_offset;
1322             }
1323             else req->last_mask = ~0;
1324
1325             memcpy( (char *)server_data_ptr(req) + first_offset, (char *)buffer + pos,
1326                     max - first_offset );
1327             if (!(res = server_call( REQ_WRITE_PROCESS_MEMORY )))
1328             {
1329                 pos += max - first_offset;
1330                 size -= max - first_offset;
1331             }
1332         }
1333         SERVER_END_REQ;
1334         if (res)
1335         {
1336             if (bytes_written) *bytes_written = 0;
1337             return FALSE;
1338         }
1339         if (!size) return TRUE;
1340         first_offset = 0;
1341         len = min( size + sizeof(int) - 1, REQUEST_MAX_VAR_SIZE ) / sizeof(int);
1342         max = len * sizeof(int);
1343     }
1344 }
1345
1346
1347 /***********************************************************************
1348  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1349  *
1350  * A service process calls this function to ensure that it continues to run
1351  * even after a user logged off.
1352  */
1353 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1354 {
1355         /* I don't think that Wine needs to do anything in that function */
1356         return 1; /* success */
1357 }
1358
1359 /***********************************************************************
1360  * GetExitCodeProcess [KERNEL32.325]
1361  *
1362  * Gets termination status of specified process
1363  *
1364  * RETURNS
1365  *   Success: TRUE
1366  *   Failure: FALSE
1367  */
1368 BOOL WINAPI GetExitCodeProcess(
1369     HANDLE hProcess,    /* [in] handle to the process */
1370     LPDWORD lpExitCode) /* [out] address to receive termination status */
1371 {
1372     BOOL ret;
1373     SERVER_START_REQ
1374     {
1375         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1376         req->handle = hProcess;
1377         ret = !server_call( REQ_GET_PROCESS_INFO );
1378         if (ret && lpExitCode) *lpExitCode = req->exit_code;
1379     }
1380     SERVER_END_REQ;
1381     return ret;
1382 }
1383
1384
1385 /***********************************************************************
1386  *           SetErrorMode   (KERNEL32.486)
1387  */
1388 UINT WINAPI SetErrorMode( UINT mode )
1389 {
1390     UINT old = current_process.error_mode;
1391     current_process.error_mode = mode;
1392     return old;
1393 }
1394
1395
1396 /**********************************************************************
1397  * TlsAlloc [KERNEL32.530]  Allocates a TLS index.
1398  *
1399  * Allocates a thread local storage index
1400  *
1401  * RETURNS
1402  *    Success: TLS Index
1403  *    Failure: 0xFFFFFFFF
1404  */
1405 DWORD WINAPI TlsAlloc( void )
1406 {
1407     DWORD i, mask, ret = 0;
1408     DWORD *bits = current_process.tls_bits;
1409     RtlAcquirePebLock();
1410     if (*bits == 0xffffffff)
1411     {
1412         bits++;
1413         ret = 32;
1414         if (*bits == 0xffffffff)
1415         {
1416             RtlReleasePebLock();
1417             SetLastError( ERROR_NO_MORE_ITEMS );
1418             return 0xffffffff;
1419         }
1420     }
1421     for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
1422     *bits |= mask;
1423     RtlReleasePebLock();
1424     return ret + i;
1425 }
1426
1427
1428 /**********************************************************************
1429  * TlsFree [KERNEL32.531]  Releases a TLS index.
1430  *
1431  * Releases a thread local storage index, making it available for reuse
1432  *
1433  * RETURNS
1434  *    Success: TRUE
1435  *    Failure: FALSE
1436  */
1437 BOOL WINAPI TlsFree(
1438     DWORD index) /* [in] TLS Index to free */
1439 {
1440     DWORD mask = (1 << (index & 31));
1441     DWORD *bits = current_process.tls_bits;
1442     if (index >= 64)
1443     {
1444         SetLastError( ERROR_INVALID_PARAMETER );
1445         return FALSE;
1446     }
1447     if (index >= 32) bits++;
1448     RtlAcquirePebLock();
1449     if (!(*bits & mask))  /* already free? */
1450     {
1451         RtlReleasePebLock();
1452         SetLastError( ERROR_INVALID_PARAMETER );
1453         return FALSE;
1454     }
1455     *bits &= ~mask;
1456     NtCurrentTeb()->tls_array[index] = 0;
1457     /* FIXME: should zero all other thread values */
1458     RtlReleasePebLock();
1459     return TRUE;
1460 }
1461
1462
1463 /**********************************************************************
1464  * TlsGetValue [KERNEL32.532]  Gets value in a thread's TLS slot
1465  *
1466  * RETURNS
1467  *    Success: Value stored in calling thread's TLS slot for index
1468  *    Failure: 0 and GetLastError returns NO_ERROR
1469  */
1470 LPVOID WINAPI TlsGetValue(
1471     DWORD index) /* [in] TLS index to retrieve value for */
1472 {
1473     if (index >= 64)
1474     {
1475         SetLastError( ERROR_INVALID_PARAMETER );
1476         return NULL;
1477     }
1478     SetLastError( ERROR_SUCCESS );
1479     return NtCurrentTeb()->tls_array[index];
1480 }
1481
1482
1483 /**********************************************************************
1484  * TlsSetValue [KERNEL32.533]  Stores a value in the thread's TLS slot.
1485  *
1486  * RETURNS
1487  *    Success: TRUE
1488  *    Failure: FALSE
1489  */
1490 BOOL WINAPI TlsSetValue(
1491     DWORD index,  /* [in] TLS index to set value for */
1492     LPVOID value) /* [in] Value to be stored */
1493 {
1494     if (index >= 64)
1495     {
1496         SetLastError( ERROR_INVALID_PARAMETER );
1497         return FALSE;
1498     }
1499     NtCurrentTeb()->tls_array[index] = value;
1500     return TRUE;
1501 }
1502
1503
1504 /***********************************************************************
1505  *           GetCurrentProcess   (KERNEL32.198)
1506  */
1507 #undef GetCurrentProcess
1508 HANDLE WINAPI GetCurrentProcess(void)
1509 {
1510     return 0xffffffff;
1511 }