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 "heap.h"
  22 #include "thread.h"
  23 #include "winerror.h"
  24 #include "server.h"
  25 #include "options.h"
  26 #include "callback.h"
  27 #include "debugtools.h"
  28
  29 DEFAULT_DEBUG_CHANNEL(process);
  30 DECLARE_DEBUG_CHANNEL(relay);
  31 DECLARE_DEBUG_CHANNEL(win32);
  32
  33 struct _ENVDB;
  34
  35 /* Win32 process database */
  36 typedef struct _PDB
  37 {
  38     LONG             header[2];        /* 00 Kernel object header */
  39     HMODULE          module;           /* 08 Main exe module (NT) */
  40     void            *event;            /* 0c Pointer to an event object (unused) */
  41     DWORD            exit_code;        /* 10 Process exit code */
  42     DWORD            unknown2;         /* 14 Unknown */
  43     HANDLE           heap;             /* 18 Default process heap */
  44     HANDLE           mem_context;      /* 1c Process memory context */
  45     DWORD            flags;            /* 20 Flags */
  46     void            *pdb16;            /* 24 DOS PSP */
  47     WORD             PSP_sel;          /* 28 Selector to DOS PSP */
  48     WORD             imte;             /* 2a IMTE for the process module */
  49     WORD             threads;          /* 2c Number of threads */
  50     WORD             running_threads;  /* 2e Number of running threads */
  51     WORD             free_lib_count;   /* 30 Recursion depth of FreeLibrary calls */
  52     WORD             ring0_threads;    /* 32 Number of ring 0 threads */
  53     HANDLE           system_heap;      /* 34 System heap to allocate handles */
  54     HTASK            task;             /* 38 Win16 task */
  55     void            *mem_map_files;    /* 3c Pointer to mem-mapped files */
  56     struct _ENVDB   *env_db;           /* 40 Environment database */
  57     void            *handle_table;     /* 44 Handle table */
  58     struct _PDB     *parent;           /* 48 Parent process */
  59     void            *modref_list;      /* 4c MODREF list */
  60     void            *thread_list;      /* 50 List of threads */
  61     void            *debuggee_CB;      /* 54 Debuggee context block */
  62     void            *local_heap_free;  /* 58 Head of local heap free list */
  63     DWORD            unknown4;         /* 5c Unknown */
  64     CRITICAL_SECTION crit_section;     /* 60 Critical section */
  65     DWORD            unknown5[3];      /* 78 Unknown */
  66     void            *console;          /* 84 Console */
  67     DWORD            tls_bits[2];      /* 88 TLS in-use bits */
  68     DWORD            process_dword;    /* 90 Unknown */
  69     struct _PDB     *group;            /* 94 Process group */
  70     void            *exe_modref;       /* 98 MODREF for the process EXE */
  71     void            *top_filter;       /* 9c Top exception filter */
  72     DWORD            priority;         /* a0 Priority level */
  73     HANDLE           heap_list;        /* a4 Head of process heap list */
  74     void            *heap_handles;     /* a8 Head of heap handles list */
  75     DWORD            unknown6;         /* ac Unknown */
  76     void            *console_provider; /* b0 Console provider (??) */
  77     WORD             env_selector;     /* b4 Selector to process environment */
  78     WORD             error_mode;       /* b6 Error mode */
  79     HANDLE           load_done_evt;    /* b8 Event for process loading done */
  80     void            *UTState;          /* bc Head of Univeral Thunk list */
  81     DWORD            unknown8;         /* c0 Unknown (NT) */
  82     LCID             locale;           /* c4 Locale to be queried by GetThreadLocale (NT) */
  83 } PDB;
  84
  85 PDB current_process;
  86
  87 /* Process flags */
  88 #define PDB32_DEBUGGED      0x0001  /* Process is being debugged */
  89 #define PDB32_WIN16_PROC    0x0008  /* Win16 process */
  90 #define PDB32_DOS_PROC      0x0010  /* Dos process */
  91 #define PDB32_CONSOLE_PROC  0x0020  /* Console process */
  92 #define PDB32_FILE_APIS_OEM 0x0040  /* File APIs are OEM */
  93 #define PDB32_WIN32S_PROC   0x8000  /* Win32s process */
  94
  95 static char **main_exe_argv;
  96 static char main_exe_name[MAX_PATH];
  97 static HANDLE main_exe_file;
  98
  99 unsigned int server_startticks;
 100
 101 /* memory/environ.c */
 102 extern struct _ENVDB *ENV_BuildEnvironment(void);
 103 extern BOOL ENV_BuildCommandLine( char **argv );
 104 extern STARTUPINFOA current_startupinfo;
 105
 106 extern BOOL MAIN_MainInit(void);
 107
 108
 109 /***********************************************************************
 110  *           PROCESS_CallUserSignalProc
 111  *
 112  * FIXME:  Some of the signals aren't sent correctly!
 113  *
 114  * The exact meaning of the USER signals is undocumented, but this
 115  * should cover the basic idea:
 116  *
 117  * USIG_DLL_UNLOAD_WIN16
 118  *     This is sent when a 16-bit module is unloaded.
 119  *
 120  * USIG_DLL_UNLOAD_WIN32
 121  *     This is sent when a 32-bit module is unloaded.
 122  *
 123  * USIG_DLL_UNLOAD_ORPHANS
 124  *     This is sent after the last Win3.1 module is unloaded,
 125  *     to allow removal of orphaned menus.
 126  *
 127  * USIG_FAULT_DIALOG_PUSH
 128  * USIG_FAULT_DIALOG_POP
 129  *     These are called to allow USER to prepare for displaying a
 130  *     fault dialog, even though the fault might have happened while
 131  *     inside a USER critical section.
 132  *
 133  * USIG_THREAD_INIT
 134  *     This is called from the context of a new thread, as soon as it
 135  *     has started to run.
 136  *
 137  * USIG_THREAD_EXIT
 138  *     This is called, still in its context, just before a thread is
 139  *     about to terminate.
 140  *
 141  * USIG_PROCESS_CREATE
 142  *     This is called, in the parent process context, after a new process
 143  *     has been created.
 144  *
 145  * USIG_PROCESS_INIT
 146  *     This is called in the new process context, just after the main thread
 147  *     has started execution (after the main thread's USIG_THREAD_INIT has
 148  *     been sent).
 149  *
 150  * USIG_PROCESS_LOADED
 151  *     This is called after the executable file has been loaded into the
 152  *     new process context.
 153  *
 154  * USIG_PROCESS_RUNNING
 155  *     This is called immediately before the main entry point is called.
 156  *
 157  * USIG_PROCESS_EXIT
 158  *     This is called in the context of a process that is about to
 159  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 160  *     been sent).
 161  *
 162  * USIG_PROCESS_DESTROY
 163  *     This is called after a process has terminated.
 164  *
 165  *
 166  * The meaning of the dwFlags bits is as follows:
 167  *
 168  * USIG_FLAGS_WIN32
 169  *     Current process is 32-bit.
 170  *
 171  * USIG_FLAGS_GUI
 172  *     Current process is a (Win32) GUI process.
 173  *
 174  * USIG_FLAGS_FEEDBACK
 175  *     Current process needs 'feedback' (determined from the STARTUPINFO
 176  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 177  *
 178  * USIG_FLAGS_FAULT
 179  *     The signal is being sent due to a fault.
 180  */
 181 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 182 {
 183     DWORD flags = current_process.flags;
 184     DWORD startup_flags = current_startupinfo.dwFlags;
 185     DWORD dwFlags = 0;
 186
 187     /* Determine dwFlags */
 188
 189     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 190
 191     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 192
 193     if ( dwFlags & USIG_FLAGS_GUI )
 194     {
 195         /* Feedback defaults to ON */
 196         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 197             dwFlags |= USIG_FLAGS_FEEDBACK;
 198     }
 199     else
 200     {
 201         /* Feedback defaults to OFF */
 202         if (startup_flags & STARTF_FORCEONFEEDBACK)
 203             dwFlags |= USIG_FLAGS_FEEDBACK;
 204     }
 205
 206     /* Convert module handle to 16-bit */
 207
 208     if ( HIWORD( hModule ) )
 209         hModule = MapHModuleLS( hModule );
 210
 211     /* Call USER signal proc */
 212
 213     if ( Callout.UserSignalProc )
 214     {
 215         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 216             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 217         else
 218             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 219     }
 220 }
 221
 222
 223 /***********************************************************************
 224  *           process_init
 225  *
 226  * Main process initialisation code
 227  */
 228 static BOOL process_init( char *argv[] )
 229 {
 230     BOOL ret;
 231
 232     /* store the program name */
 233     argv0 = argv[0];
 234     main_exe_argv = argv;
 235
 236     /* Fill the initial process structure */
 237     current_process.exit_code       = STILL_ACTIVE;
 238     current_process.threads         = 1;
 239     current_process.running_threads = 1;
 240     current_process.ring0_threads   = 1;
 241     current_process.group           = &current_process;
 242     current_process.priority        = 8;  /* Normal */
 243
 244     /* Setup the server connection */
 245     NtCurrentTeb()->socket = CLIENT_InitServer();
 246     if (CLIENT_InitThread()) return FALSE;
 247
 248     /* Retrieve startup info from the server */
 249     SERVER_START_REQ
 250     {
 251         struct init_process_request *req = server_alloc_req( sizeof(*req),
 252                                                              sizeof(main_exe_name)-1 );
 253
 254         req->ldt_copy  = &wine_ldt_copy;
 255         req->ppid      = getppid();
 256         if ((ret = !server_call( REQ_INIT_PROCESS )))
 257         {
 258             size_t len = server_data_size( req );
 259             memcpy( main_exe_name, server_data_ptr(req), len );
 260             main_exe_name[len] = 0;
 261             main_exe_file = req->exe_file;
 262             current_startupinfo.dwFlags     = req->start_flags;
 263             server_startticks               = req->server_start;
 264             current_startupinfo.wShowWindow = req->cmd_show;
 265             current_startupinfo.hStdInput   = req->hstdin;
 266             current_startupinfo.hStdOutput  = req->hstdout;
 267             current_startupinfo.hStdError   = req->hstderr;
 268             SetStdHandle( STD_INPUT_HANDLE,  current_startupinfo.hStdInput );
 269             SetStdHandle( STD_OUTPUT_HANDLE, current_startupinfo.hStdOutput );
 270             SetStdHandle( STD_ERROR_HANDLE,  current_startupinfo.hStdError );
 271         }
 272     }
 273     SERVER_END_REQ;
 274     if (!ret) return FALSE;
 275
 276     /* Create the system and process heaps */
 277     if (!HEAP_CreateSystemHeap()) return FALSE;
 278     current_process.heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 279
 280     /* Copy the parent environment */
 281     if (!(current_process.env_db = ENV_BuildEnvironment())) return FALSE;
 282
 283     /* Parse command line arguments */
 284     OPTIONS_ParseOptions( argv );
 285
 286     return MAIN_MainInit();
 287 }
 288
 289
 290 /***********************************************************************
 291  *           start_process
 292  *
 293  * Startup routine of a new process. Runs on the new process stack.
 294  */
 295 static void start_process(void)
 296 {
 297     int debugged, console_app;
 298     LPTHREAD_START_ROUTINE entry;
 299     WINE_MODREF *wm;
 300
 301     /* build command line */
 302     if (!ENV_BuildCommandLine( main_exe_argv )) goto error;
 303
 304     /* create 32-bit module for main exe */
 305     if (!(current_process.module = BUILTIN32_LoadExeModule( current_process.module ))) goto error;
 306
 307     /* use original argv[0] as name for the main module */
 308     if (!main_exe_name[0])
 309     {
 310         if (!GetLongPathNameA( full_argv0, main_exe_name, sizeof(main_exe_name) ))
 311             lstrcpynA( main_exe_name, full_argv0, sizeof(main_exe_name) );
 312     }
 313
 314     /* Retrieve entry point address */
 315     entry = (LPTHREAD_START_ROUTINE)((char*)current_process.module +
 316                          PE_HEADER(current_process.module)->OptionalHeader.AddressOfEntryPoint);
 317     console_app = (PE_HEADER(current_process.module)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
 318     if (console_app) current_process.flags |= PDB32_CONSOLE_PROC;
 319
 320     /* Signal the parent process to continue */
 321     SERVER_START_REQ
 322     {
 323         struct init_process_done_request *req = server_alloc_req( sizeof(*req), 0 );
 324         req->module   = (void *)current_process.module;
 325         req->entry    = entry;
 326         req->name     = main_exe_name;
 327         req->exe_file = main_exe_file;
 328         req->gui      = !console_app;
 329         server_call( REQ_INIT_PROCESS_DONE );
 330         debugged = req->debugged;
 331     }
 332     SERVER_END_REQ;
 333
 334     /* Install signal handlers; this cannot be done before, since we cannot
 335      * send exceptions to the debugger before the create process event that
 336      * is sent by REQ_INIT_PROCESS_DONE */
 337     if (!SIGNAL_Init()) goto error;
 338
 339     /* create the main modref and load dependencies */
 340     if (!(wm = PE_CreateModule( current_process.module, main_exe_name, 0, 0, FALSE )))
 341         goto error;
 342     wm->refCount++;
 343
 344     RtlAcquirePebLock();
 345     PE_InitTls();
 346     MODULE_DllProcessAttach( NULL, (LPVOID)1 );
 347     RtlReleasePebLock();
 348
 349     /* Get pointers to USER routines called by KERNEL */
 350     THUNK_InitCallout();
 351
 352     /* Call FinalUserInit routine */
 353     if (Callout.FinalUserInit16) Callout.FinalUserInit16();
 354
 355     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 356      *       context of the parent process.  Actually, the USER signal proc
 357      *       doesn't really care about that, but it *does* require that the
 358      *       startup parameters are correctly set up, so that GetProcessDword
 359      *       works.  Furthermore, before calling the USER signal proc the
 360      *       16-bit stack must be set up, which it is only after TASK_Create
 361      *       in the case of a 16-bit process. Thus, we send the signal here.
 362      */
 363     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 364     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 365     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 366     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 367     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 368     if (console_app) PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 369
 370     TRACE_(relay)( "Starting Win32 process %s (entryproc=%p)\n", main_exe_name, entry );
 371     if (debugged) DbgBreakPoint();
 372     /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 373      * Dunno about other OSs */
 374     SetLastError(0);  /* clear error code */
 375     ExitThread( entry(NULL) );
 376
 377  error:
 378     ExitProcess( GetLastError() );
 379 }
 380
 381
 382 /***********************************************************************
 383  *           open_winelib_app
 384  *
 385  * Try to open the Winelib app .so file based on argv[0] or WINEPRELOAD.
 386  */
 387 void *open_winelib_app( char *argv[] )
 388 {
 389     void *ret = NULL;
 390     char *tmp;
 391     const char *name;
 392     char errStr[100];
 393
 394     if ((name = getenv( "WINEPRELOAD" )))
 395     {
 396         if (!(ret = wine_dll_load_main_exe( name, 0, errStr, sizeof(errStr) )))
 397         {
 398             MESSAGE( "%s: could not load '%s' as specified in the WINEPRELOAD environment variable: %s\n",
 399                      argv[0], name, errStr );
 400             ExitProcess(1);
 401         }
 402     }
 403     else
 404     {
 405         const char *argv0 = main_exe_name;
 406         if (!*argv0)
 407         {
 408             /* if argv[0] is "wine", don't try to load anything */
 409             argv0 = argv[0];
 410             if (!(name = strrchr( argv0, '/' ))) name = argv0;
 411             else name++;
 412             if (!strcmp( name, "wine" )) return NULL;
 413         }
 414
 415         /* now try argv[0] with ".so" appended */
 416         if ((tmp = HeapAlloc( GetProcessHeap(), 0, strlen(argv0) + 4 )))
 417         {
 418             strcpy( tmp, argv0 );
 419             strcat( tmp, ".so" );
 420             /* search in PATH only if there was no '/' in argv[0] */
 421             ret = wine_dll_load_main_exe( tmp, (name == argv0), errStr, sizeof(errStr) );
 422             if (!ret && !argv[1])
 423             {
 424                 /* if no argv[1], this will be better than displaying usage */
 425                 MESSAGE( "%s: could not load library '%s' as Winelib application: %s\n",
 426                          argv[0], tmp, errStr );
 427                 ExitProcess(1);
 428             }
 429             HeapFree( GetProcessHeap(), 0, tmp );
 430         }
 431     }
 432     return ret;
 433 }
 434
 435 /***********************************************************************
 436  *           PROCESS_InitWine
 437  *
 438  * Wine initialisation: load and start the main exe file.
 439  */
 440 void PROCESS_InitWine( int argc, char *argv[], LPSTR win16_exe_name, HANDLE *win16_exe_file )
 441 {
 442     DWORD stack_size = 0;
 443
 444     /* Initialize everything */
 445     if (!process_init( argv )) exit(1);
 446
 447     if (open_winelib_app( argv )) goto found; /* try to open argv[0] as a winelib app */
 448
 449     main_exe_argv = ++argv;  /* remove argv[0] (wine itself) */
 450
 451     if (!main_exe_name[0])
 452     {
 453         if (!argv[0]) OPTIONS_Usage();
 454
 455         /* open the exe file */
 456         if (!SearchPathA( NULL, argv[0], ".exe", sizeof(main_exe_name), main_exe_name, NULL ) &&
 457             !SearchPathA( NULL, argv[0], NULL, sizeof(main_exe_name), main_exe_name, NULL ))
 458         {
 459             MESSAGE( "%s: cannot find '%s'\n", argv0, argv[0] );
 460             goto error;
 461         }
 462     }
 463
 464     if (!main_exe_file)
 465     {
 466         if ((main_exe_file = CreateFileA( main_exe_name, GENERIC_READ, FILE_SHARE_READ,
 467                                           NULL, OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
 468         {
 469             MESSAGE( "%s: cannot open '%s'\n", argv0, main_exe_name );
 470             goto error;
 471         }
 472     }
 473
 474     /* first try Win32 format; this will fail if the file is not a PE binary */
 475     if ((current_process.module = PE_LoadImage( main_exe_file, main_exe_name, 0 )))
 476     {
 477         if (PE_HEADER(current_process.module)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 478             ExitProcess( ERROR_BAD_EXE_FORMAT );
 479         stack_size = PE_HEADER(current_process.module)->OptionalHeader.SizeOfStackReserve;
 480         goto found;
 481     }
 482
 483     /* it must be 16-bit or DOS format */
 484     NtCurrentTeb()->tibflags &= ~TEBF_WIN32;
 485     current_process.flags |= PDB32_WIN16_PROC;
 486     strcpy( win16_exe_name, main_exe_name );
 487     main_exe_name[0] = 0;
 488     *win16_exe_file = main_exe_file;
 489     main_exe_file = 0;
 490     _EnterWin16Lock();
 491
 492  found:
 493     /* allocate main thread stack */
 494     if (!THREAD_InitStack( NtCurrentTeb(), stack_size, TRUE )) goto error;
 495
 496     /* switch to the new stack */
 497     SYSDEPS_SwitchToThreadStack( start_process );
 498
 499  error:
 500     ExitProcess( GetLastError() );
 501 }
 502
 503
 504 /***********************************************************************
 505  *           PROCESS_InitWinelib
 506  *
 507  * Initialisation of a new Winelib process.
 508  */
 509 void PROCESS_InitWinelib( int argc, char *argv[] )
 510 {
 511     if (!process_init( argv )) exit(1);
 512
 513     /* allocate main thread stack */
 514     if (!THREAD_InitStack( NtCurrentTeb(), 0, TRUE )) ExitProcess( GetLastError() );
 515
 516     /* switch to the new stack */
 517     SYSDEPS_SwitchToThreadStack( start_process );
 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, const char *extra_env )
 584 {
 585     const char *p;
 586     char **envp;
 587     int count = 0;
 588
 589     if (extra_env) for (p = extra_env; *p; count++) p += strlen(p) + 1;
 590     for (p = env; *p; count++) p += strlen(p) + 1;
 591     count += 3;
 592
 593     if ((envp = malloc( count * sizeof(*envp) )))
 594     {
 595         extern char **environ;
 596         char **envptr = envp;
 597         char **unixptr = environ;
 598         /* first the extra strings */
 599         if (extra_env) for (p = extra_env; *p; p += strlen(p) + 1) *envptr++ = (char *)p;
 600         /* then put PATH, HOME and WINEPREFIX from the unix env */
 601         for (unixptr = environ; unixptr && *unixptr; unixptr++)
 602             if (!memcmp( *unixptr, "PATH=", 5 ) ||
 603                 !memcmp( *unixptr, "HOME=", 5 ) ||
 604                 !memcmp( *unixptr, "WINEPREFIX=", 11 )) *envptr++ = *unixptr;
 605         /* now put the Windows environment strings */
 606         for (p = env; *p; p += strlen(p) + 1)
 607         {
 608             if (memcmp( p, "PATH=", 5 ) &&
 609                 memcmp( p, "HOME=", 5 ) &&
 610                 memcmp( p, "WINEPRELOAD=", 12 ) &&
 611                 memcmp( p, "WINEPREFIX=", 11 )) *envptr++ = (char *)p;
 612         }
 613         *envptr = 0;
 614     }
 615     return envp;
 616 }
 617
 618
 619 /***********************************************************************
 620  *           exec_wine_binary
 621  *
 622  * Locate the Wine binary to exec for a new Win32 process.
 623  */
 624 static void exec_wine_binary( char **argv, char **envp )
 625 {
 626     const char *path, *pos, *ptr;
 627
 628     /* first, try for a WINELOADER environment variable */
 629     argv[0] = getenv("WINELOADER");
 630     if (argv[0])
 631         execve( argv[0], argv, envp );
 632
 633     /* next, try bin directory */
 634     argv[0] = BINDIR "/wine";
 635     execve( argv[0], argv, envp );
 636
 637     /* now try the path of argv0 of the current binary */
 638     if (!(argv[0] = malloc( strlen(full_argv0) + 6 ))) return;
 639     if ((ptr = strrchr( full_argv0, '/' )))
 640     {
 641         memcpy( argv[0], full_argv0, ptr - full_argv0 );
 642         strcpy( argv[0] + (ptr - full_argv0), "/wine" );
 643         execve( argv[0], argv, envp );
 644     }
 645     free( argv[0] );
 646
 647     /* now search in the Unix path */
 648     if ((path = getenv( "PATH" )))
 649     {
 650         if (!(argv[0] = malloc( strlen(path) + 6 ))) return;
 651         pos = path;
 652         for (;;)
 653         {
 654             while (*pos == ':') pos++;
 655             if (!*pos) break;
 656             if (!(ptr = strchr( pos, ':' ))) ptr = pos + strlen(pos);
 657             memcpy( argv[0], pos, ptr - pos );
 658             strcpy( argv[0] + (ptr - pos), "/wine" );
 659             execve( argv[0], argv, envp );
 660             pos = ptr;
 661         }
 662     }
 663     free( argv[0] );
 664
 665     /* finally try the current directory */
 666     argv[0] = "./wine";
 667     execve( argv[0], argv, envp );
 668 }
 669
 670
 671 /***********************************************************************
 672  *           fork_and_exec
 673  *
 674  * Fork and exec a new Unix process, checking for errors.
 675  */
 676 static int fork_and_exec( const char *filename, char *cmdline,
 677                           const char *env, const char *newdir )
 678 {
 679     int fd[2];
 680     int pid, err;
 681     char *extra_env = NULL;
 682
 683     if (!env)
 684     {
 685         env = GetEnvironmentStringsA();
 686         extra_env = DRIVE_BuildEnv();
 687     }
 688
 689     if (pipe(fd) == -1)
 690     {
 691         FILE_SetDosError();
 692         return -1;
 693     }
 694     fcntl( fd[1], F_SETFD, 1 );  /* set close on exec */
 695     if (!(pid = fork()))  /* child */
 696     {
 697         char **argv = build_argv( cmdline, filename ? 0 : 2 );
 698         char **envp = build_envp( env, extra_env );
 699         close( fd[0] );
 700
 701         if (newdir) chdir(newdir);
 702
 703         if (argv && envp)
 704         {
 705             if (!filename)
 706             {
 707                 argv[1] = "--";
 708                 exec_wine_binary( argv, envp );
 709             }
 710             else execve( filename, argv, envp );
 711         }
 712         err = errno;
 713         write( fd[1], &err, sizeof(err) );
 714         _exit(1);
 715     }
 716     close( fd[1] );
 717     if ((pid != -1) && (read( fd[0], &err, sizeof(err) ) > 0))  /* exec failed */
 718     {
 719         errno = err;
 720         pid = -1;
 721     }
 722     if (pid == -1) FILE_SetDosError();
 723     close( fd[0] );
 724     if (extra_env) HeapFree( GetProcessHeap(), 0, extra_env );
 725     return pid;
 726 }
 727
 728
 729 /***********************************************************************
 730  *           PROCESS_Create
 731  *
 732  * Create a new process. If hFile is a valid handle we have an exe
 733  * file, and we exec a new copy of wine to load it; otherwise we
 734  * simply exec the specified filename as a Unix process.
 735  */
 736 BOOL PROCESS_Create( HANDLE hFile, LPCSTR filename, LPSTR cmd_line, LPCSTR env,
 737                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 738                      BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
 739                      LPPROCESS_INFORMATION info, LPCSTR lpCurrentDirectory )
 740 {
 741     BOOL ret;
 742     int pid;
 743     const char *unixfilename = NULL;
 744     const char *unixdir = NULL;
 745     DOS_FULL_NAME full_dir, full_name;
 746     HANDLE load_done_evt = 0;
 747     HANDLE process_info;
 748
 749     info->hThread = info->hProcess = 0;
 750
 751     if (lpCurrentDirectory)
 752     {
 753         if (DOSFS_GetFullName( lpCurrentDirectory, TRUE, &full_dir ))
 754             unixdir = full_dir.long_name;
 755     }
 756     else
 757     {
 758         char buf[MAX_PATH];
 759         if (GetCurrentDirectoryA(sizeof(buf),buf))
 760         {
 761             if (DOSFS_GetFullName( buf, TRUE, &full_dir ))
 762                 unixdir = full_dir.long_name;
 763         }
 764     }
 765
 766     /* create the process on the server side */
 767
 768     SERVER_START_REQ
 769     {
 770         struct new_process_request *req = server_alloc_req( sizeof(*req), MAX_PATH );
 771         req->inherit_all  = inherit;
 772         req->create_flags = flags;
 773         req->start_flags  = startup->dwFlags;
 774         req->exe_file     = hFile;
 775         if (startup->dwFlags & STARTF_USESTDHANDLES)
 776         {
 777             req->hstdin  = startup->hStdInput;
 778             req->hstdout = startup->hStdOutput;
 779             req->hstderr = startup->hStdError;
 780         }
 781         else
 782         {
 783             req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 784             req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 785             req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 786         }
 787         req->cmd_show = startup->wShowWindow;
 788
 789         if (!hFile)  /* unix process */
 790         {
 791             unixfilename = filename;
 792             if (DOSFS_GetFullName( filename, TRUE, &full_name ))
 793                 unixfilename = full_name.long_name;
 794             lstrcpynA( server_data_ptr(req), unixfilename, MAX_PATH );
 795         }
 796         else  /* new wine process */
 797         {
 798             if (!GetLongPathNameA( filename, server_data_ptr(req), MAX_PATH ))
 799                 lstrcpynA( server_data_ptr(req), filename, MAX_PATH );
 800         }
 801         ret = !server_call( REQ_NEW_PROCESS );
 802         process_info = req->info;
 803     }
 804     SERVER_END_REQ;
 805     if (!ret) return FALSE;
 806
 807     /* fork and execute */
 808
 809     pid = fork_and_exec( unixfilename, cmd_line, env, unixdir );
 810
 811     /* wait for the new process info to be ready */
 812
 813     ret = FALSE;
 814     if ((pid != -1) && (WaitForSingleObject( process_info, 2000 ) == STATUS_WAIT_0))
 815     {
 816         SERVER_START_REQ
 817         {
 818             struct get_new_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
 819             req->info     = process_info;
 820             req->pinherit = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 821             req->tinherit = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 822             if ((ret = !server_call( REQ_GET_NEW_PROCESS_INFO )))
 823             {
 824                 info->dwProcessId = (DWORD)req->pid;
 825                 info->dwThreadId  = (DWORD)req->tid;
 826                 info->hProcess    = req->phandle;
 827                 info->hThread     = req->thandle;
 828                 load_done_evt     = req->event;
 829             }
 830         }
 831         SERVER_END_REQ;
 832     }
 833     CloseHandle( process_info );
 834     if (!ret) goto error;
 835
 836     /* Wait until process is initialized (or initialization failed) */
 837     if (load_done_evt)
 838     {
 839         DWORD res;
 840         HANDLE handles[2];
 841
 842         handles[0] = info->hProcess;
 843         handles[1] = load_done_evt;
 844         res = WaitForMultipleObjects( 2, handles, FALSE, INFINITE );
 845         CloseHandle( load_done_evt );
 846         if (res == STATUS_WAIT_0)  /* the process died */
 847         {
 848             DWORD exitcode;
 849             if (GetExitCodeProcess( info->hProcess, &exitcode )) SetLastError( exitcode );
 850             CloseHandle( info->hThread );
 851             CloseHandle( info->hProcess );
 852             return FALSE;
 853         }
 854     }
 855     return TRUE;
 856
 857 error:
 858     if (load_done_evt) CloseHandle( load_done_evt );
 859     if (info->hThread) CloseHandle( info->hThread );
 860     if (info->hProcess) CloseHandle( info->hProcess );
 861     return FALSE;
 862 }
 863
 864
 865 /***********************************************************************
 866  *           ExitProcess   (KERNEL32.100)
 867  */
 868 void WINAPI ExitProcess( DWORD status )
 869 {
 870     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 871     SERVER_START_REQ
 872     {
 873         struct terminate_process_request *req = server_alloc_req( sizeof(*req), 0 );
 874         /* send the exit code to the server */
 875         req->handle    = GetCurrentProcess();
 876         req->exit_code = status;
 877         server_call( REQ_TERMINATE_PROCESS );
 878     }
 879     SERVER_END_REQ;
 880     exit( status );
 881 }
 882
 883 /***********************************************************************
 884  *           ExitProcess16   (KERNEL.466)
 885  */
 886 void WINAPI ExitProcess16( WORD status )
 887 {
 888     DWORD count;
 889     ReleaseThunkLock( &count );
 890     ExitProcess( status );
 891 }
 892
 893 /******************************************************************************
 894  *           TerminateProcess   (KERNEL32.684)
 895  */
 896 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 897 {
 898     NTSTATUS status = NtTerminateProcess( handle, exit_code );
 899     if (status) SetLastError( RtlNtStatusToDosError(status) );
 900     return !status;
 901 }
 902
 903
 904 /***********************************************************************
 905  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 906  * 'Of course you cannot directly access Windows internal structures'
 907  */
 908 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 909 {
 910     DWORD x, y;
 911
 912     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 913
 914     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 915     {
 916         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 917         return 0;
 918     }
 919
 920     switch ( offset )
 921     {
 922     case GPD_APP_COMPAT_FLAGS:
 923         return GetAppCompatFlags16(0);
 924
 925     case GPD_LOAD_DONE_EVENT:
 926         return current_process.load_done_evt;
 927
 928     case GPD_HINSTANCE16:
 929         return GetTaskDS16();
 930
 931     case GPD_WINDOWS_VERSION:
 932         return GetExeVersion16();
 933
 934     case GPD_THDB:
 935         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 936
 937     case GPD_PDB:
 938         return (DWORD)&current_process;
 939
 940     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 941         return current_startupinfo.hStdOutput;
 942
 943     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 944         return current_startupinfo.hStdInput;
 945
 946     case GPD_STARTF_SHOWWINDOW:
 947         return current_startupinfo.wShowWindow;
 948
 949     case GPD_STARTF_SIZE:
 950         x = current_startupinfo.dwXSize;
 951         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 952         y = current_startupinfo.dwYSize;
 953         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 954         return MAKELONG( x, y );
 955
 956     case GPD_STARTF_POSITION:
 957         x = current_startupinfo.dwX;
 958         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 959         y = current_startupinfo.dwY;
 960         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 961         return MAKELONG( x, y );
 962
 963     case GPD_STARTF_FLAGS:
 964         return current_startupinfo.dwFlags;
 965
 966     case GPD_PARENT:
 967         return 0;
 968
 969     case GPD_FLAGS:
 970         return current_process.flags;
 971
 972     case GPD_USERDATA:
 973         return current_process.process_dword;
 974
 975     default:
 976         ERR_(win32)("Unknown offset %d\n", offset );
 977         return 0;
 978     }
 979 }
 980
 981 /***********************************************************************
 982  *           SetProcessDword    (KERNEL.484)
 983  * 'Of course you cannot directly access Windows internal structures'
 984  */
 985 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 986 {
 987     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 988
 989     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 990     {
 991         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 992         return;
 993     }
 994
 995     switch ( offset )
 996     {
 997     case GPD_APP_COMPAT_FLAGS:
 998     case GPD_LOAD_DONE_EVENT:
 999     case GPD_HINSTANCE16:
1000     case GPD_WINDOWS_VERSION:
1001     case GPD_THDB:
1002     case GPD_PDB:
1003     case GPD_STARTF_SHELLDATA:
1004     case GPD_STARTF_HOTKEY:
1005     case GPD_STARTF_SHOWWINDOW:
1006     case GPD_STARTF_SIZE:
1007     case GPD_STARTF_POSITION:
1008     case GPD_STARTF_FLAGS:
1009     case GPD_PARENT:
1010     case GPD_FLAGS:
1011         ERR_(win32)("Not allowed to modify offset %d\n", offset );
1012         break;
1013
1014     case GPD_USERDATA:
1015         current_process.process_dword = value;
1016         break;
1017
1018     default:
1019         ERR_(win32)("Unknown offset %d\n", offset );
1020         break;
1021     }
1022 }
1023
1024
1025 /*********************************************************************
1026  *           OpenProcess   (KERNEL32.543)
1027  */
1028 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
1029 {
1030     HANDLE ret = 0;
1031     SERVER_START_REQ
1032     {
1033         struct open_process_request *req = server_alloc_req( sizeof(*req), 0 );
1034
1035         req->pid     = (void *)id;
1036         req->access  = access;
1037         req->inherit = inherit;
1038         if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
1039     }
1040     SERVER_END_REQ;
1041     return ret;
1042 }
1043
1044 /*********************************************************************
1045  *           MapProcessHandle   (KERNEL.483)
1046  */
1047 DWORD WINAPI MapProcessHandle( HANDLE handle )
1048 {
1049     DWORD ret = 0;
1050     SERVER_START_REQ
1051     {
1052         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1053         req->handle = handle;
1054         if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
1055     }
1056     SERVER_END_REQ;
1057     return ret;
1058 }
1059
1060 /***********************************************************************
1061  *           SetPriorityClass   (KERNEL32.503)
1062  */
1063 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
1064 {
1065     BOOL ret;
1066     SERVER_START_REQ
1067     {
1068         struct set_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1069         req->handle   = hprocess;
1070         req->priority = priorityclass;
1071         req->mask     = SET_PROCESS_INFO_PRIORITY;
1072         ret = !server_call( REQ_SET_PROCESS_INFO );
1073     }
1074     SERVER_END_REQ;
1075     return ret;
1076 }
1077
1078
1079 /***********************************************************************
1080  *           GetPriorityClass   (KERNEL32.250)
1081  */
1082 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
1083 {
1084     DWORD ret = 0;
1085     SERVER_START_REQ
1086     {
1087         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1088         req->handle = hprocess;
1089         if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
1090     }
1091     SERVER_END_REQ;
1092     return ret;
1093 }
1094
1095
1096 /***********************************************************************
1097  *          SetProcessAffinityMask   (KERNEL32.662)
1098  */
1099 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
1100 {
1101     BOOL ret;
1102     SERVER_START_REQ
1103     {
1104         struct set_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1105         req->handle   = hProcess;
1106         req->affinity = affmask;
1107         req->mask     = SET_PROCESS_INFO_AFFINITY;
1108         ret = !server_call( REQ_SET_PROCESS_INFO );
1109     }
1110     SERVER_END_REQ;
1111     return ret;
1112 }
1113
1114 /**********************************************************************
1115  *          GetProcessAffinityMask    (KERNEL32.373)
1116  */
1117 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
1118                                       LPDWORD lpProcessAffinityMask,
1119                                       LPDWORD lpSystemAffinityMask )
1120 {
1121     BOOL ret = FALSE;
1122     SERVER_START_REQ
1123     {
1124         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1125         req->handle = hProcess;
1126         if (!server_call( REQ_GET_PROCESS_INFO ))
1127         {
1128             if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
1129             if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
1130             ret = TRUE;
1131         }
1132     }
1133     SERVER_END_REQ;
1134     return ret;
1135 }
1136
1137
1138 /***********************************************************************
1139  *           GetProcessVersion    (KERNEL32)
1140  */
1141 DWORD WINAPI GetProcessVersion( DWORD processid )
1142 {
1143     IMAGE_NT_HEADERS *nt;
1144
1145     if (processid && processid != GetCurrentProcessId())
1146     {
1147         FIXME("should use ReadProcessMemory\n");
1148         return 0;
1149     }
1150     if ((nt = RtlImageNtHeader( current_process.module )))
1151         return ((nt->OptionalHeader.MajorSubsystemVersion << 16) |
1152                 nt->OptionalHeader.MinorSubsystemVersion);
1153     return 0;
1154 }
1155
1156 /***********************************************************************
1157  *           GetProcessFlags    (KERNEL32)
1158  */
1159 DWORD WINAPI GetProcessFlags( DWORD processid )
1160 {
1161     if (processid && processid != GetCurrentProcessId()) return 0;
1162     return current_process.flags;
1163 }
1164
1165
1166 /***********************************************************************
1167  *              SetProcessWorkingSetSize        [KERNEL32.662]
1168  * Sets the min/max working set sizes for a specified process.
1169  *
1170  * PARAMS
1171  *    hProcess [I] Handle to the process of interest
1172  *    minset   [I] Specifies minimum working set size
1173  *    maxset   [I] Specifies maximum working set size
1174  *
1175  * RETURNS  STD
1176  */
1177 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1178                                        DWORD maxset)
1179 {
1180     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1181     if(( minset == (DWORD)-1) && (maxset == (DWORD)-1)) {
1182         /* Trim the working set to zero */
1183         /* Swap the process out of physical RAM */
1184     }
1185     return TRUE;
1186 }
1187
1188 /***********************************************************************
1189  *           GetProcessWorkingSetSize    (KERNEL32)
1190  */
1191 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1192                                        LPDWORD maxset)
1193 {
1194         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1195         /* 32 MB working set size */
1196         if (minset) *minset = 32*1024*1024;
1197         if (maxset) *maxset = 32*1024*1024;
1198         return TRUE;
1199 }
1200
1201 /***********************************************************************
1202  *           SetProcessShutdownParameters    (KERNEL32)
1203  *
1204  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1205  * Now tracks changes made (but does not act on these changes)
1206  */
1207 static DWORD shutdown_flags = 0;
1208 static DWORD shutdown_priority = 0x280;
1209
1210 BOOL WINAPI SetProcessShutdownParameters(DWORD level, DWORD flags)
1211 {
1212     FIXME("(%08lx, %08lx): partial stub.\n", level, flags);
1213     shutdown_flags = flags;
1214     shutdown_priority = level;
1215     return TRUE;
1216 }
1217
1218
1219 /***********************************************************************
1220  * GetProcessShutdownParameters                 (KERNEL32)
1221  *
1222  */
1223 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel, LPDWORD lpdwFlags )
1224 {
1225     *lpdwLevel = shutdown_priority;
1226     *lpdwFlags = shutdown_flags;
1227     return TRUE;
1228 }
1229
1230
1231 /***********************************************************************
1232  *           SetProcessPriorityBoost    (KERNEL32)
1233  */
1234 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1235 {
1236     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1237     /* Say we can do it. I doubt the program will notice that we don't. */
1238     return TRUE;
1239 }
1240
1241
1242 /***********************************************************************
1243  *           ReadProcessMemory                  (KERNEL32)
1244  */
1245 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1246                                LPDWORD bytes_read )
1247 {
1248     unsigned int offset = (unsigned int)addr % sizeof(int);
1249     unsigned int pos = 0, len, max;
1250     int res;
1251
1252     if (bytes_read) *bytes_read = size;
1253
1254     /* first time, read total length to check for permissions */
1255     len = (size + offset + sizeof(int) - 1) / sizeof(int);
1256     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1257
1258     for (;;)
1259     {
1260         SERVER_START_REQ
1261         {
1262             struct read_process_memory_request *req = server_alloc_req( sizeof(*req), max );
1263             req->handle = process;
1264             req->addr   = (char *)addr + pos - offset;
1265             req->len    = len;
1266             if (!(res = server_call( REQ_READ_PROCESS_MEMORY )))
1267             {
1268                 size_t result = server_data_size( req );
1269                 if (result > size + offset) result = size + offset;
1270                 memcpy( (char *)buffer + pos, server_data_ptr(req) + offset, result - offset );
1271                 size -= result - offset;
1272                 pos += result - offset;
1273             }
1274         }
1275         SERVER_END_REQ;
1276         if (res)
1277         {
1278             if (bytes_read) *bytes_read = 0;
1279             return FALSE;
1280         }
1281         if (!size) return TRUE;
1282         max = min( REQUEST_MAX_VAR_SIZE, size );
1283         len = (max + sizeof(int) - 1) / sizeof(int);
1284         offset = 0;
1285     }
1286 }
1287
1288
1289 /***********************************************************************
1290  *           WriteProcessMemory                 (KERNEL32)
1291  */
1292 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1293                                 LPDWORD bytes_written )
1294 {
1295     unsigned int first_offset, last_offset;
1296     unsigned int pos = 0, len, max, first_mask, last_mask;
1297     int res;
1298
1299     if (!size)
1300     {
1301         SetLastError( ERROR_INVALID_PARAMETER );
1302         return FALSE;
1303     }
1304     if (bytes_written) *bytes_written = size;
1305
1306     /* compute the mask for the first int */
1307     first_mask = ~0;
1308     first_offset = (unsigned int)addr % sizeof(int);
1309     memset( &first_mask, 0, first_offset );
1310
1311     /* compute the mask for the last int */
1312     last_offset = (size + first_offset) % sizeof(int);
1313     last_mask = 0;
1314     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1315
1316     /* for the first request, use the total length */
1317     len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1318     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1319
1320     for (;;)
1321     {
1322         SERVER_START_REQ
1323         {
1324             struct write_process_memory_request *req = server_alloc_req( sizeof(*req), max );
1325             req->handle = process;
1326             req->addr = (char *)addr - first_offset + pos;
1327             req->len = len;
1328             req->first_mask = (!pos) ? first_mask : ~0;
1329             if (size + first_offset <= max)  /* last round */
1330             {
1331                 req->last_mask = last_mask;
1332                 max = size + first_offset;
1333             }
1334             else req->last_mask = ~0;
1335
1336             memcpy( (char *)server_data_ptr(req) + first_offset, (char *)buffer + pos,
1337                     max - first_offset );
1338             if (!(res = server_call( REQ_WRITE_PROCESS_MEMORY )))
1339             {
1340                 pos += max - first_offset;
1341                 size -= max - first_offset;
1342             }
1343         }
1344         SERVER_END_REQ;
1345         if (res)
1346         {
1347             if (bytes_written) *bytes_written = 0;
1348             return FALSE;
1349         }
1350         if (!size) return TRUE;
1351         first_offset = 0;
1352         len = min( size + sizeof(int) - 1, REQUEST_MAX_VAR_SIZE ) / sizeof(int);
1353         max = len * sizeof(int);
1354     }
1355 }
1356
1357
1358 /***********************************************************************
1359  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1360  *
1361  * A service process calls this function to ensure that it continues to run
1362  * even after a user logged off.
1363  */
1364 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1365 {
1366         /* I don't think that Wine needs to do anything in that function */
1367         return 1; /* success */
1368 }
1369
1370 /***********************************************************************
1371  * GetExitCodeProcess [KERNEL32.325]
1372  *
1373  * Gets termination status of specified process
1374  *
1375  * RETURNS
1376  *   Success: TRUE
1377  *   Failure: FALSE
1378  */
1379 BOOL WINAPI GetExitCodeProcess(
1380     HANDLE hProcess,    /* [in] handle to the process */
1381     LPDWORD lpExitCode) /* [out] address to receive termination status */
1382 {
1383     BOOL ret;
1384     SERVER_START_REQ
1385     {
1386         struct get_process_info_request *req = server_alloc_req( sizeof(*req), 0 );
1387         req->handle = hProcess;
1388         ret = !server_call( REQ_GET_PROCESS_INFO );
1389         if (ret && lpExitCode) *lpExitCode = req->exit_code;
1390     }
1391     SERVER_END_REQ;
1392     return ret;
1393 }
1394
1395
1396 /***********************************************************************
1397  *           SetErrorMode   (KERNEL32.486)
1398  */
1399 UINT WINAPI SetErrorMode( UINT mode )
1400 {
1401     UINT old = current_process.error_mode;
1402     current_process.error_mode = mode;
1403     return old;
1404 }
1405
1406
1407 /**********************************************************************
1408  * TlsAlloc [KERNEL32.530]  Allocates a TLS index.
1409  *
1410  * Allocates a thread local storage index
1411  *
1412  * RETURNS
1413  *    Success: TLS Index
1414  *    Failure: 0xFFFFFFFF
1415  */
1416 DWORD WINAPI TlsAlloc( void )
1417 {
1418     DWORD i, mask, ret = 0;
1419     DWORD *bits = current_process.tls_bits;
1420     RtlAcquirePebLock();
1421     if (*bits == 0xffffffff)
1422     {
1423         bits++;
1424         ret = 32;
1425         if (*bits == 0xffffffff)
1426         {
1427             RtlReleasePebLock();
1428             SetLastError( ERROR_NO_MORE_ITEMS );
1429             return 0xffffffff;
1430         }
1431     }
1432     for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
1433     *bits |= mask;
1434     RtlReleasePebLock();
1435     return ret + i;
1436 }
1437
1438
1439 /**********************************************************************
1440  * TlsFree [KERNEL32.531]  Releases a TLS index.
1441  *
1442  * Releases a thread local storage index, making it available for reuse
1443  *
1444  * RETURNS
1445  *    Success: TRUE
1446  *    Failure: FALSE
1447  */
1448 BOOL WINAPI TlsFree(
1449     DWORD index) /* [in] TLS Index to free */
1450 {
1451     DWORD mask = (1 << (index & 31));
1452     DWORD *bits = current_process.tls_bits;
1453     if (index >= 64)
1454     {
1455         SetLastError( ERROR_INVALID_PARAMETER );
1456         return FALSE;
1457     }
1458     if (index >= 32) bits++;
1459     RtlAcquirePebLock();
1460     if (!(*bits & mask))  /* already free? */
1461     {
1462         RtlReleasePebLock();
1463         SetLastError( ERROR_INVALID_PARAMETER );
1464         return FALSE;
1465     }
1466     *bits &= ~mask;
1467     NtCurrentTeb()->tls_array[index] = 0;
1468     /* FIXME: should zero all other thread values */
1469     RtlReleasePebLock();
1470     return TRUE;
1471 }
1472
1473
1474 /**********************************************************************
1475  * TlsGetValue [KERNEL32.532]  Gets value in a thread's TLS slot
1476  *
1477  * RETURNS
1478  *    Success: Value stored in calling thread's TLS slot for index
1479  *    Failure: 0 and GetLastError returns NO_ERROR
1480  */
1481 LPVOID WINAPI TlsGetValue(
1482     DWORD index) /* [in] TLS index to retrieve value for */
1483 {
1484     if (index >= 64)
1485     {
1486         SetLastError( ERROR_INVALID_PARAMETER );
1487         return NULL;
1488     }
1489     SetLastError( ERROR_SUCCESS );
1490     return NtCurrentTeb()->tls_array[index];
1491 }
1492
1493
1494 /**********************************************************************
1495  * TlsSetValue [KERNEL32.533]  Stores a value in the thread's TLS slot.
1496  *
1497  * RETURNS
1498  *    Success: TRUE
1499  *    Failure: FALSE
1500  */
1501 BOOL WINAPI TlsSetValue(
1502     DWORD index,  /* [in] TLS index to set value for */
1503     LPVOID value) /* [in] Value to be stored */
1504 {
1505     if (index >= 64)
1506     {
1507         SetLastError( ERROR_INVALID_PARAMETER );
1508         return FALSE;
1509     }
1510     NtCurrentTeb()->tls_array[index] = value;
1511     return TRUE;
1512 }
1513
1514
1515 /***********************************************************************
1516  *           GetCurrentProcess   (KERNEL32.198)
1517  */
1518 #undef GetCurrentProcess
1519 HANDLE WINAPI GetCurrentProcess(void)
1520 {
1521     return 0xffffffff;
1522 }