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 "thread.h"
  22 #include "winerror.h"
  23 #include "server.h"
  24 #include "options.h"
  25 #include "callback.h"
  26 #include "debugtools.h"
  27
  28 DEFAULT_DEBUG_CHANNEL(process);
  29 DECLARE_DEBUG_CHANNEL(relay);
  30 DECLARE_DEBUG_CHANNEL(win32);
  31
  32 struct _ENVDB;
  33
  34 /* Win32 process database */
  35 typedef struct _PDB
  36 {
  37     LONG             header[2];        /* 00 Kernel object header */
  38     HMODULE          module;           /* 08 Main exe module (NT) */
  39     void            *event;            /* 0c Pointer to an event object (unused) */
  40     DWORD            exit_code;        /* 10 Process exit code */
  41     DWORD            unknown2;         /* 14 Unknown */
  42     HANDLE           heap;             /* 18 Default process heap */
  43     HANDLE           mem_context;      /* 1c Process memory context */
  44     DWORD            flags;            /* 20 Flags */
  45     void            *pdb16;            /* 24 DOS PSP */
  46     WORD             PSP_sel;          /* 28 Selector to DOS PSP */
  47     WORD             imte;             /* 2a IMTE for the process module */
  48     WORD             threads;          /* 2c Number of threads */
  49     WORD             running_threads;  /* 2e Number of running threads */
  50     WORD             free_lib_count;   /* 30 Recursion depth of FreeLibrary calls */
  51     WORD             ring0_threads;    /* 32 Number of ring 0 threads */
  52     HANDLE           system_heap;      /* 34 System heap to allocate handles */
  53     HTASK            task;             /* 38 Win16 task */
  54     void            *mem_map_files;    /* 3c Pointer to mem-mapped files */
  55     struct _ENVDB   *env_db;           /* 40 Environment database */
  56     void            *handle_table;     /* 44 Handle table */
  57     struct _PDB     *parent;           /* 48 Parent process */
  58     void            *modref_list;      /* 4c MODREF list */
  59     void            *thread_list;      /* 50 List of threads */
  60     void            *debuggee_CB;      /* 54 Debuggee context block */
  61     void            *local_heap_free;  /* 58 Head of local heap free list */
  62     DWORD            unknown4;         /* 5c Unknown */
  63     CRITICAL_SECTION crit_section;     /* 60 Critical section */
  64     DWORD            unknown5[3];      /* 78 Unknown */
  65     void            *console;          /* 84 Console */
  66     DWORD            tls_bits[2];      /* 88 TLS in-use bits */
  67     DWORD            process_dword;    /* 90 Unknown */
  68     struct _PDB     *group;            /* 94 Process group */
  69     void            *exe_modref;       /* 98 MODREF for the process EXE */
  70     void            *top_filter;       /* 9c Top exception filter */
  71     DWORD            priority;         /* a0 Priority level */
  72     HANDLE           heap_list;        /* a4 Head of process heap list */
  73     void            *heap_handles;     /* a8 Head of heap handles list */
  74     DWORD            unknown6;         /* ac Unknown */
  75     void            *console_provider; /* b0 Console provider (??) */
  76     WORD             env_selector;     /* b4 Selector to process environment */
  77     WORD             error_mode;       /* b6 Error mode */
  78     HANDLE           load_done_evt;    /* b8 Event for process loading done */
  79     void            *UTState;          /* bc Head of Univeral Thunk list */
  80     DWORD            unknown8;         /* c0 Unknown (NT) */
  81     LCID             locale;           /* c4 Locale to be queried by GetThreadLocale (NT) */
  82 } PDB;
  83
  84 PDB current_process;
  85
  86 /* Process flags */
  87 #define PDB32_DEBUGGED      0x0001  /* Process is being debugged */
  88 #define PDB32_WIN16_PROC    0x0008  /* Win16 process */
  89 #define PDB32_DOS_PROC      0x0010  /* Dos process */
  90 #define PDB32_CONSOLE_PROC  0x0020  /* Console process */
  91 #define PDB32_FILE_APIS_OEM 0x0040  /* File APIs are OEM */
  92 #define PDB32_WIN32S_PROC   0x8000  /* Win32s process */
  93
  94 static char **main_exe_argv;
  95 static char main_exe_name[MAX_PATH];
  96 static HANDLE main_exe_file;
  97
  98 unsigned int server_startticks;
  99
 100 /* memory/environ.c */
 101 extern struct _ENVDB *ENV_BuildEnvironment(void);
 102 extern BOOL ENV_BuildCommandLine( char **argv );
 103 extern STARTUPINFOA current_startupinfo;
 104
 105 /* scheduler/pthread.c */
 106 extern void PTHREAD_init_done(void);
 107
 108 extern BOOL MAIN_MainInit(void);
 109
 110
 111 /***********************************************************************
 112  *           PROCESS_CallUserSignalProc
 113  *
 114  * FIXME:  Some of the signals aren't sent correctly!
 115  *
 116  * The exact meaning of the USER signals is undocumented, but this
 117  * should cover the basic idea:
 118  *
 119  * USIG_DLL_UNLOAD_WIN16
 120  *     This is sent when a 16-bit module is unloaded.
 121  *
 122  * USIG_DLL_UNLOAD_WIN32
 123  *     This is sent when a 32-bit module is unloaded.
 124  *
 125  * USIG_DLL_UNLOAD_ORPHANS
 126  *     This is sent after the last Win3.1 module is unloaded,
 127  *     to allow removal of orphaned menus.
 128  *
 129  * USIG_FAULT_DIALOG_PUSH
 130  * USIG_FAULT_DIALOG_POP
 131  *     These are called to allow USER to prepare for displaying a
 132  *     fault dialog, even though the fault might have happened while
 133  *     inside a USER critical section.
 134  *
 135  * USIG_THREAD_INIT
 136  *     This is called from the context of a new thread, as soon as it
 137  *     has started to run.
 138  *
 139  * USIG_THREAD_EXIT
 140  *     This is called, still in its context, just before a thread is
 141  *     about to terminate.
 142  *
 143  * USIG_PROCESS_CREATE
 144  *     This is called, in the parent process context, after a new process
 145  *     has been created.
 146  *
 147  * USIG_PROCESS_INIT
 148  *     This is called in the new process context, just after the main thread
 149  *     has started execution (after the main thread's USIG_THREAD_INIT has
 150  *     been sent).
 151  *
 152  * USIG_PROCESS_LOADED
 153  *     This is called after the executable file has been loaded into the
 154  *     new process context.
 155  *
 156  * USIG_PROCESS_RUNNING
 157  *     This is called immediately before the main entry point is called.
 158  *
 159  * USIG_PROCESS_EXIT
 160  *     This is called in the context of a process that is about to
 161  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 162  *     been sent).
 163  *
 164  * USIG_PROCESS_DESTROY
 165  *     This is called after a process has terminated.
 166  *
 167  *
 168  * The meaning of the dwFlags bits is as follows:
 169  *
 170  * USIG_FLAGS_WIN32
 171  *     Current process is 32-bit.
 172  *
 173  * USIG_FLAGS_GUI
 174  *     Current process is a (Win32) GUI process.
 175  *
 176  * USIG_FLAGS_FEEDBACK
 177  *     Current process needs 'feedback' (determined from the STARTUPINFO
 178  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 179  *
 180  * USIG_FLAGS_FAULT
 181  *     The signal is being sent due to a fault.
 182  */
 183 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 184 {
 185     DWORD flags = current_process.flags;
 186     DWORD startup_flags = current_startupinfo.dwFlags;
 187     DWORD dwFlags = 0;
 188
 189     /* Determine dwFlags */
 190
 191     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 192
 193     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 194
 195     if ( dwFlags & USIG_FLAGS_GUI )
 196     {
 197         /* Feedback defaults to ON */
 198         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 199             dwFlags |= USIG_FLAGS_FEEDBACK;
 200     }
 201     else
 202     {
 203         /* Feedback defaults to OFF */
 204         if (startup_flags & STARTF_FORCEONFEEDBACK)
 205             dwFlags |= USIG_FLAGS_FEEDBACK;
 206     }
 207
 208     /* Convert module handle to 16-bit */
 209
 210     if ( HIWORD( hModule ) )
 211         hModule = MapHModuleLS( hModule );
 212
 213     /* Call USER signal proc */
 214
 215     if ( Callout.UserSignalProc )
 216     {
 217         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 218             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 219         else
 220             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 221     }
 222 }
 223
 224
 225 /***********************************************************************
 226  *           set_console_handles
 227  *
 228  * Set the console handles to use stdin/stdout.
 229  */
 230 static void set_console_handles( HANDLE console )
 231 {
 232     HANDLE in = FILE_DupUnixHandle( 0, GENERIC_READ );
 233     HANDLE out = FILE_DupUnixHandle( 1, GENERIC_WRITE );
 234
 235     SERVER_START_REQ( set_console_fd )
 236     {
 237         req->handle     = console;
 238         req->handle_in  = in;
 239         req->handle_out = out;
 240         req->pid = 0;
 241         SERVER_CALL();
 242     }
 243     SERVER_END_REQ;
 244     NtClose( in );
 245     NtClose( out );
 246 }
 247
 248
 249 /***********************************************************************
 250  *           process_init
 251  *
 252  * Main process initialisation code
 253  */
 254 static BOOL process_init( char *argv[] )
 255 {
 256     BOOL ret;
 257     int create_flags = 0;
 258
 259     /* store the program name */
 260     argv0 = argv[0];
 261     main_exe_argv = argv;
 262
 263     /* Fill the initial process structure */
 264     current_process.exit_code       = STILL_ACTIVE;
 265     current_process.threads         = 1;
 266     current_process.running_threads = 1;
 267     current_process.ring0_threads   = 1;
 268     current_process.group           = &current_process;
 269     current_process.priority        = 8;  /* Normal */
 270
 271     /* Setup the server connection */
 272     NtCurrentTeb()->socket = CLIENT_InitServer();
 273     if (CLIENT_InitThread()) return FALSE;
 274
 275     /* Retrieve startup info from the server */
 276     SERVER_START_VAR_REQ( init_process, sizeof(main_exe_name)-1 )
 277     {
 278         req->ldt_copy  = &wine_ldt_copy;
 279         req->ppid      = getppid();
 280         if ((ret = !SERVER_CALL_ERR()))
 281         {
 282             size_t len = server_data_size( req );
 283             memcpy( main_exe_name, server_data_ptr(req), len );
 284             main_exe_name[len] = 0;
 285             main_exe_file = req->exe_file;
 286             create_flags  = req->create_flags;
 287             current_startupinfo.dwFlags     = req->start_flags;
 288             server_startticks               = req->server_start;
 289             current_startupinfo.wShowWindow = req->cmd_show;
 290             current_startupinfo.hStdInput   = req->hstdin;
 291             current_startupinfo.hStdOutput  = req->hstdout;
 292             current_startupinfo.hStdError   = req->hstderr;
 293         }
 294     }
 295     SERVER_END_VAR_REQ;
 296     if (!ret) return FALSE;
 297
 298     SetStdHandle( STD_INPUT_HANDLE,  current_startupinfo.hStdInput );
 299     SetStdHandle( STD_OUTPUT_HANDLE, current_startupinfo.hStdOutput );
 300     SetStdHandle( STD_ERROR_HANDLE,  current_startupinfo.hStdError );
 301     if (create_flags & CREATE_NEW_CONSOLE)
 302         set_console_handles( current_startupinfo.hStdOutput );
 303
 304     /* Create the process heap */
 305     current_process.heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 306
 307     /* Now we can use the pthreads routines */
 308     PTHREAD_init_done();
 309
 310     /* Copy the parent environment */
 311     if (!(current_process.env_db = ENV_BuildEnvironment())) return FALSE;
 312
 313     /* Parse command line arguments */
 314     OPTIONS_ParseOptions( argv );
 315
 316     return MAIN_MainInit();
 317 }
 318
 319
 320 /***********************************************************************
 321  *           start_process
 322  *
 323  * Startup routine of a new process. Runs on the new process stack.
 324  */
 325 static void start_process(void)
 326 {
 327     int debugged, console_app;
 328     LPTHREAD_START_ROUTINE entry;
 329     WINE_MODREF *wm;
 330
 331     /* build command line */
 332     if (!ENV_BuildCommandLine( main_exe_argv )) goto error;
 333
 334     /* create 32-bit module for main exe */
 335     if (!(current_process.module = BUILTIN32_LoadExeModule( current_process.module ))) goto error;
 336
 337     /* use original argv[0] as name for the main module */
 338     if (!main_exe_name[0])
 339     {
 340         if (!GetLongPathNameA( full_argv0, main_exe_name, sizeof(main_exe_name) ))
 341             lstrcpynA( main_exe_name, full_argv0, sizeof(main_exe_name) );
 342     }
 343
 344     /* Retrieve entry point address */
 345     entry = (LPTHREAD_START_ROUTINE)((char*)current_process.module +
 346                          PE_HEADER(current_process.module)->OptionalHeader.AddressOfEntryPoint);
 347     console_app = (PE_HEADER(current_process.module)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
 348     if (console_app) current_process.flags |= PDB32_CONSOLE_PROC;
 349
 350     /* Signal the parent process to continue */
 351     SERVER_START_REQ( init_process_done )
 352     {
 353         req->module   = (void *)current_process.module;
 354         req->entry    = entry;
 355         req->name     = main_exe_name;
 356         req->exe_file = main_exe_file;
 357         req->gui      = !console_app;
 358         SERVER_CALL();
 359         debugged = req->debugged;
 360     }
 361     SERVER_END_REQ;
 362
 363     /* Install signal handlers; this cannot be done before, since we cannot
 364      * send exceptions to the debugger before the create process event that
 365      * is sent by REQ_INIT_PROCESS_DONE */
 366     if (!SIGNAL_Init()) goto error;
 367
 368     /* create the main modref and load dependencies */
 369     if (!(wm = PE_CreateModule( current_process.module, main_exe_name, 0, 0, FALSE )))
 370         goto error;
 371     wm->refCount++;
 372
 373     RtlAcquirePebLock();
 374     PE_InitTls();
 375     MODULE_DllProcessAttach( NULL, (LPVOID)1 );
 376     RtlReleasePebLock();
 377
 378     /* Get pointers to USER routines called by KERNEL */
 379     THUNK_InitCallout();
 380
 381     /* Call FinalUserInit routine */
 382     if (Callout.FinalUserInit16) Callout.FinalUserInit16();
 383
 384     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 385      *       context of the parent process.  Actually, the USER signal proc
 386      *       doesn't really care about that, but it *does* require that the
 387      *       startup parameters are correctly set up, so that GetProcessDword
 388      *       works.  Furthermore, before calling the USER signal proc the
 389      *       16-bit stack must be set up, which it is only after TASK_Create
 390      *       in the case of a 16-bit process. Thus, we send the signal here.
 391      */
 392     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 393     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 394     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 395     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 396     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 397     if (console_app) PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 398
 399     TRACE_(relay)( "Starting Win32 process %s (entryproc=%p)\n", main_exe_name, entry );
 400     if (debugged) DbgBreakPoint();
 401     /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 402      * Dunno about other OSs */
 403     SetLastError(0);  /* clear error code */
 404     ExitThread( entry(NULL) );
 405
 406  error:
 407     ExitProcess( GetLastError() );
 408 }
 409
 410
 411 /***********************************************************************
 412  *           open_winelib_app
 413  *
 414  * Try to open the Winelib app .so file based on argv[0] or WINEPRELOAD.
 415  */
 416 void *open_winelib_app( char *argv[] )
 417 {
 418     void *ret = NULL;
 419     char *tmp;
 420     const char *name;
 421     char errStr[100];
 422
 423     if ((name = getenv( "WINEPRELOAD" )))
 424     {
 425         if (!(ret = wine_dll_load_main_exe( name, 0, errStr, sizeof(errStr) )))
 426         {
 427             MESSAGE( "%s: could not load '%s' as specified in the WINEPRELOAD environment variable: %s\n",
 428                      argv[0], name, errStr );
 429             ExitProcess(1);
 430         }
 431     }
 432     else
 433     {
 434         const char *argv0 = main_exe_name;
 435         if (!*argv0)
 436         {
 437             /* if argv[0] is "wine", don't try to load anything */
 438             argv0 = argv[0];
 439             if (!(name = strrchr( argv0, '/' ))) name = argv0;
 440             else name++;
 441             if (!strcmp( name, "wine" )) return NULL;
 442         }
 443
 444         /* now try argv[0] with ".so" appended */
 445         if ((tmp = HeapAlloc( GetProcessHeap(), 0, strlen(argv0) + 4 )))
 446         {
 447             strcpy( tmp, argv0 );
 448             strcat( tmp, ".so" );
 449             /* search in PATH only if there was no '/' in argv[0] */
 450             ret = wine_dll_load_main_exe( tmp, (name == argv0), errStr, sizeof(errStr) );
 451             if (!ret && !argv[1])
 452             {
 453                 /* if no argv[1], this will be better than displaying usage */
 454                 MESSAGE( "%s: could not load library '%s' as Winelib application: %s\n",
 455                          argv[0], tmp, errStr );
 456                 ExitProcess(1);
 457             }
 458             HeapFree( GetProcessHeap(), 0, tmp );
 459         }
 460     }
 461     return ret;
 462 }
 463
 464 /***********************************************************************
 465  *           PROCESS_InitWine
 466  *
 467  * Wine initialisation: load and start the main exe file.
 468  */
 469 void PROCESS_InitWine( int argc, char *argv[], LPSTR win16_exe_name, HANDLE *win16_exe_file )
 470 {
 471     DWORD stack_size = 0;
 472
 473     /* Initialize everything */
 474     if (!process_init( argv )) exit(1);
 475
 476     if (open_winelib_app( argv )) goto found; /* try to open argv[0] as a winelib app */
 477
 478     main_exe_argv = ++argv;  /* remove argv[0] (wine itself) */
 479
 480     if (!main_exe_name[0])
 481     {
 482         if (!argv[0]) OPTIONS_Usage();
 483
 484         /* open the exe file */
 485         if (!SearchPathA( NULL, argv[0], ".exe", sizeof(main_exe_name), main_exe_name, NULL ) &&
 486             !SearchPathA( NULL, argv[0], NULL, sizeof(main_exe_name), main_exe_name, NULL ))
 487         {
 488             MESSAGE( "%s: cannot find '%s'\n", argv0, argv[0] );
 489             goto error;
 490         }
 491     }
 492
 493     if (!main_exe_file)
 494     {
 495         if ((main_exe_file = CreateFileA( main_exe_name, GENERIC_READ, FILE_SHARE_READ,
 496                                           NULL, OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
 497         {
 498             MESSAGE( "%s: cannot open '%s'\n", argv0, main_exe_name );
 499             goto error;
 500         }
 501     }
 502
 503     /* first try Win32 format; this will fail if the file is not a PE binary */
 504     if ((current_process.module = PE_LoadImage( main_exe_file, main_exe_name, 0 )))
 505     {
 506         if (PE_HEADER(current_process.module)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 507             ExitProcess( ERROR_BAD_EXE_FORMAT );
 508         stack_size = PE_HEADER(current_process.module)->OptionalHeader.SizeOfStackReserve;
 509         goto found;
 510     }
 511
 512     /* it must be 16-bit or DOS format */
 513     NtCurrentTeb()->tibflags &= ~TEBF_WIN32;
 514     current_process.flags |= PDB32_WIN16_PROC;
 515     strcpy( win16_exe_name, main_exe_name );
 516     main_exe_name[0] = 0;
 517     *win16_exe_file = main_exe_file;
 518     main_exe_file = 0;
 519     _EnterWin16Lock();
 520
 521  found:
 522     /* allocate main thread stack */
 523     if (!THREAD_InitStack( NtCurrentTeb(), stack_size )) goto error;
 524
 525     /* switch to the new stack */
 526     SYSDEPS_SwitchToThreadStack( start_process );
 527
 528  error:
 529     ExitProcess( GetLastError() );
 530 }
 531
 532
 533 /***********************************************************************
 534  *           PROCESS_InitWinelib
 535  *
 536  * Initialisation of a new Winelib process.
 537  */
 538 void PROCESS_InitWinelib( int argc, char *argv[] )
 539 {
 540     if (!process_init( argv )) exit(1);
 541
 542     /* allocate main thread stack */
 543     if (!THREAD_InitStack( NtCurrentTeb(), 0 )) ExitProcess( GetLastError() );
 544
 545     /* switch to the new stack */
 546     SYSDEPS_SwitchToThreadStack( start_process );
 547 }
 548
 549
 550 /***********************************************************************
 551  *           build_argv
 552  *
 553  * Build an argv array from a command-line.
 554  * The command-line is modified to insert nulls.
 555  * 'reserved' is the number of args to reserve before the first one.
 556  */
 557 static char **build_argv( char *cmdline, int reserved )
 558 {
 559     char **argv;
 560     int count = reserved + 1;
 561     char *p = cmdline;
 562
 563     /* if first word is quoted store it as a single arg */
 564     if (*cmdline == '\"')
 565     {
 566         if ((p = strchr( cmdline + 1, '\"' )))
 567         {
 568             p++;
 569             count++;
 570         }
 571         else p = cmdline;
 572     }
 573     while (*p)
 574     {
 575         while (*p && isspace(*p)) p++;
 576         if (!*p) break;
 577         count++;
 578         while (*p && !isspace(*p)) p++;
 579     }
 580
 581     if ((argv = malloc( count * sizeof(*argv) )))
 582     {
 583         char **argvptr = argv + reserved;
 584         p = cmdline;
 585         if (*cmdline == '\"')
 586         {
 587             if ((p = strchr( cmdline + 1, '\"' )))
 588             {
 589                 *argvptr++ = cmdline + 1;
 590                 *p++ = 0;
 591             }
 592             else p = cmdline;
 593         }
 594         while (*p)
 595         {
 596             while (*p && isspace(*p)) *p++ = 0;
 597             if (!*p) break;
 598             *argvptr++ = p;
 599             while (*p && !isspace(*p)) p++;
 600         }
 601         *argvptr = 0;
 602     }
 603     return argv;
 604 }
 605
 606
 607 /***********************************************************************
 608  *           build_envp
 609  *
 610  * Build the environment of a new child process.
 611  */
 612 static char **build_envp( const char *env, const char *extra_env )
 613 {
 614     const char *p;
 615     char **envp;
 616     int count = 0;
 617
 618     if (extra_env) for (p = extra_env; *p; count++) p += strlen(p) + 1;
 619     for (p = env; *p; count++) p += strlen(p) + 1;
 620     count += 3;
 621
 622     if ((envp = malloc( count * sizeof(*envp) )))
 623     {
 624         extern char **environ;
 625         char **envptr = envp;
 626         char **unixptr = environ;
 627         /* first the extra strings */
 628         if (extra_env) for (p = extra_env; *p; p += strlen(p) + 1) *envptr++ = (char *)p;
 629         /* then put PATH, HOME and WINEPREFIX from the unix env */
 630         for (unixptr = environ; unixptr && *unixptr; unixptr++)
 631             if (!memcmp( *unixptr, "PATH=", 5 ) ||
 632                 !memcmp( *unixptr, "HOME=", 5 ) ||
 633                 !memcmp( *unixptr, "WINEPREFIX=", 11 )) *envptr++ = *unixptr;
 634         /* now put the Windows environment strings */
 635         for (p = env; *p; p += strlen(p) + 1)
 636         {
 637             if (memcmp( p, "PATH=", 5 ) &&
 638                 memcmp( p, "HOME=", 5 ) &&
 639                 memcmp( p, "WINEPRELOAD=", 12 ) &&
 640                 memcmp( p, "WINEPREFIX=", 11 )) *envptr++ = (char *)p;
 641         }
 642         *envptr = 0;
 643     }
 644     return envp;
 645 }
 646
 647
 648 /***********************************************************************
 649  *           exec_wine_binary
 650  *
 651  * Locate the Wine binary to exec for a new Win32 process.
 652  */
 653 static void exec_wine_binary( char **argv, char **envp )
 654 {
 655     const char *path, *pos, *ptr;
 656
 657     /* first, try for a WINELOADER environment variable */
 658     argv[0] = getenv("WINELOADER");
 659     if (argv[0])
 660         execve( argv[0], argv, envp );
 661
 662     /* next, try bin directory */
 663     argv[0] = BINDIR "/wine";
 664     execve( argv[0], argv, envp );
 665
 666     /* now try the path of argv0 of the current binary */
 667     if (!(argv[0] = malloc( strlen(full_argv0) + 6 ))) return;
 668     if ((ptr = strrchr( full_argv0, '/' )))
 669     {
 670         memcpy( argv[0], full_argv0, ptr - full_argv0 );
 671         strcpy( argv[0] + (ptr - full_argv0), "/wine" );
 672         execve( argv[0], argv, envp );
 673     }
 674     free( argv[0] );
 675
 676     /* now search in the Unix path */
 677     if ((path = getenv( "PATH" )))
 678     {
 679         if (!(argv[0] = malloc( strlen(path) + 6 ))) return;
 680         pos = path;
 681         for (;;)
 682         {
 683             while (*pos == ':') pos++;
 684             if (!*pos) break;
 685             if (!(ptr = strchr( pos, ':' ))) ptr = pos + strlen(pos);
 686             memcpy( argv[0], pos, ptr - pos );
 687             strcpy( argv[0] + (ptr - pos), "/wine" );
 688             execve( argv[0], argv, envp );
 689             pos = ptr;
 690         }
 691     }
 692     free( argv[0] );
 693
 694     /* finally try the current directory */
 695     argv[0] = "./wine";
 696     execve( argv[0], argv, envp );
 697 }
 698
 699
 700 /***********************************************************************
 701  *           fork_and_exec
 702  *
 703  * Fork and exec a new Unix process, checking for errors.
 704  */
 705 static int fork_and_exec( const char *filename, char *cmdline,
 706                           const char *env, const char *newdir )
 707 {
 708     int fd[2];
 709     int pid, err;
 710     char *extra_env = NULL;
 711
 712     if (!env)
 713     {
 714         env = GetEnvironmentStringsA();
 715         extra_env = DRIVE_BuildEnv();
 716     }
 717
 718     if (pipe(fd) == -1)
 719     {
 720         FILE_SetDosError();
 721         return -1;
 722     }
 723     fcntl( fd[1], F_SETFD, 1 );  /* set close on exec */
 724     if (!(pid = fork()))  /* child */
 725     {
 726         char **argv = build_argv( cmdline, filename ? 0 : 2 );
 727         char **envp = build_envp( env, extra_env );
 728         close( fd[0] );
 729
 730         if (newdir) chdir(newdir);
 731
 732         if (argv && envp)
 733         {
 734             if (!filename)
 735             {
 736                 argv[1] = "--";
 737                 exec_wine_binary( argv, envp );
 738             }
 739             else execve( filename, argv, envp );
 740         }
 741         err = errno;
 742         write( fd[1], &err, sizeof(err) );
 743         _exit(1);
 744     }
 745     close( fd[1] );
 746     if ((pid != -1) && (read( fd[0], &err, sizeof(err) ) > 0))  /* exec failed */
 747     {
 748         errno = err;
 749         pid = -1;
 750     }
 751     if (pid == -1) FILE_SetDosError();
 752     close( fd[0] );
 753     if (extra_env) HeapFree( GetProcessHeap(), 0, extra_env );
 754     return pid;
 755 }
 756
 757
 758 /***********************************************************************
 759  *           PROCESS_Create
 760  *
 761  * Create a new process. If hFile is a valid handle we have an exe
 762  * file, and we exec a new copy of wine to load it; otherwise we
 763  * simply exec the specified filename as a Unix process.
 764  */
 765 BOOL PROCESS_Create( HANDLE hFile, LPCSTR filename, LPSTR cmd_line, LPCSTR env,
 766                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 767                      BOOL inherit, DWORD flags, LPSTARTUPINFOA startup,
 768                      LPPROCESS_INFORMATION info, LPCSTR lpCurrentDirectory )
 769 {
 770     BOOL ret;
 771     int pid;
 772     const char *unixfilename = NULL;
 773     const char *unixdir = NULL;
 774     DOS_FULL_NAME full_dir, full_name;
 775     HANDLE load_done_evt = 0;
 776     HANDLE process_info;
 777
 778     info->hThread = info->hProcess = 0;
 779
 780     if (lpCurrentDirectory)
 781     {
 782         if (DOSFS_GetFullName( lpCurrentDirectory, TRUE, &full_dir ))
 783             unixdir = full_dir.long_name;
 784     }
 785     else
 786     {
 787         char buf[MAX_PATH];
 788         if (GetCurrentDirectoryA(sizeof(buf),buf))
 789         {
 790             if (DOSFS_GetFullName( buf, TRUE, &full_dir ))
 791                 unixdir = full_dir.long_name;
 792         }
 793     }
 794
 795     /* create the process on the server side */
 796
 797     SERVER_START_VAR_REQ( new_process, MAX_PATH )
 798     {
 799         req->inherit_all  = inherit;
 800         req->create_flags = flags;
 801         req->start_flags  = startup->dwFlags;
 802         req->exe_file     = hFile;
 803         if (startup->dwFlags & STARTF_USESTDHANDLES)
 804         {
 805             req->hstdin  = startup->hStdInput;
 806             req->hstdout = startup->hStdOutput;
 807             req->hstderr = startup->hStdError;
 808         }
 809         else
 810         {
 811             req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 812             req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 813             req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 814         }
 815         req->cmd_show = startup->wShowWindow;
 816
 817         if (!hFile)  /* unix process */
 818         {
 819             unixfilename = filename;
 820             if (DOSFS_GetFullName( filename, TRUE, &full_name ))
 821                 unixfilename = full_name.long_name;
 822             lstrcpynA( server_data_ptr(req), unixfilename, MAX_PATH );
 823         }
 824         else  /* new wine process */
 825         {
 826             if (!GetLongPathNameA( filename, server_data_ptr(req), MAX_PATH ))
 827                 lstrcpynA( server_data_ptr(req), filename, MAX_PATH );
 828         }
 829         ret = !SERVER_CALL_ERR();
 830         process_info = req->info;
 831     }
 832     SERVER_END_VAR_REQ;
 833     if (!ret) return FALSE;
 834
 835     /* fork and execute */
 836
 837     pid = fork_and_exec( unixfilename, cmd_line, env, unixdir );
 838
 839     /* wait for the new process info to be ready */
 840
 841     ret = FALSE;
 842     if ((pid != -1) && (WaitForSingleObject( process_info, 2000 ) == STATUS_WAIT_0))
 843     {
 844         SERVER_START_REQ( get_new_process_info )
 845         {
 846             req->info     = process_info;
 847             req->pinherit = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 848             req->tinherit = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 849             if ((ret = !SERVER_CALL_ERR()))
 850             {
 851                 info->dwProcessId = (DWORD)req->pid;
 852                 info->dwThreadId  = (DWORD)req->tid;
 853                 info->hProcess    = req->phandle;
 854                 info->hThread     = req->thandle;
 855                 load_done_evt     = req->event;
 856             }
 857         }
 858         SERVER_END_REQ;
 859     }
 860     CloseHandle( process_info );
 861     if (!ret) goto error;
 862
 863     /* Wait until process is initialized (or initialization failed) */
 864     if (load_done_evt)
 865     {
 866         DWORD res;
 867         HANDLE handles[2];
 868
 869         handles[0] = info->hProcess;
 870         handles[1] = load_done_evt;
 871         res = WaitForMultipleObjects( 2, handles, FALSE, INFINITE );
 872         CloseHandle( load_done_evt );
 873         if (res == STATUS_WAIT_0)  /* the process died */
 874         {
 875             DWORD exitcode;
 876             if (GetExitCodeProcess( info->hProcess, &exitcode )) SetLastError( exitcode );
 877             CloseHandle( info->hThread );
 878             CloseHandle( info->hProcess );
 879             return FALSE;
 880         }
 881     }
 882     return TRUE;
 883
 884 error:
 885     if (load_done_evt) CloseHandle( load_done_evt );
 886     if (info->hThread) CloseHandle( info->hThread );
 887     if (info->hProcess) CloseHandle( info->hProcess );
 888     return FALSE;
 889 }
 890
 891
 892 /***********************************************************************
 893  *           ExitProcess   (KERNEL32.@)
 894  */
 895 void WINAPI ExitProcess( DWORD status )
 896 {
 897     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 898     SERVER_START_REQ( terminate_process )
 899     {
 900         /* send the exit code to the server */
 901         req->handle    = GetCurrentProcess();
 902         req->exit_code = status;
 903         SERVER_CALL();
 904     }
 905     SERVER_END_REQ;
 906     exit( status );
 907 }
 908
 909 /***********************************************************************
 910  *           ExitProcess16   (KERNEL.466)
 911  */
 912 void WINAPI ExitProcess16( WORD status )
 913 {
 914     DWORD count;
 915     ReleaseThunkLock( &count );
 916     ExitProcess( status );
 917 }
 918
 919 /******************************************************************************
 920  *           TerminateProcess   (KERNEL32.684)
 921  */
 922 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 923 {
 924     NTSTATUS status = NtTerminateProcess( handle, exit_code );
 925     if (status) SetLastError( RtlNtStatusToDosError(status) );
 926     return !status;
 927 }
 928
 929
 930 /***********************************************************************
 931  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 932  * 'Of course you cannot directly access Windows internal structures'
 933  */
 934 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 935 {
 936     DWORD x, y;
 937
 938     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 939
 940     if (dwProcessID && dwProcessID != GetCurrentProcessId())
 941     {
 942         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
 943         return 0;
 944     }
 945
 946     switch ( offset )
 947     {
 948     case GPD_APP_COMPAT_FLAGS:
 949         return GetAppCompatFlags16(0);
 950
 951     case GPD_LOAD_DONE_EVENT:
 952         return current_process.load_done_evt;
 953
 954     case GPD_HINSTANCE16:
 955         return GetTaskDS16();
 956
 957     case GPD_WINDOWS_VERSION:
 958         return GetExeVersion16();
 959
 960     case GPD_THDB:
 961         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 962
 963     case GPD_PDB:
 964         return (DWORD)&current_process;
 965
 966     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 967         return current_startupinfo.hStdOutput;
 968
 969     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 970         return current_startupinfo.hStdInput;
 971
 972     case GPD_STARTF_SHOWWINDOW:
 973         return current_startupinfo.wShowWindow;
 974
 975     case GPD_STARTF_SIZE:
 976         x = current_startupinfo.dwXSize;
 977         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 978         y = current_startupinfo.dwYSize;
 979         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 980         return MAKELONG( x, y );
 981
 982     case GPD_STARTF_POSITION:
 983         x = current_startupinfo.dwX;
 984         if ( (INT)x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 985         y = current_startupinfo.dwY;
 986         if ( (INT)y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 987         return MAKELONG( x, y );
 988
 989     case GPD_STARTF_FLAGS:
 990         return current_startupinfo.dwFlags;
 991
 992     case GPD_PARENT:
 993         return 0;
 994
 995     case GPD_FLAGS:
 996         return current_process.flags;
 997
 998     case GPD_USERDATA:
 999         return current_process.process_dword;
1000
1001     default:
1002         ERR_(win32)("Unknown offset %d\n", offset );
1003         return 0;
1004     }
1005 }
1006
1007 /***********************************************************************
1008  *           SetProcessDword    (KERNEL.484)
1009  * 'Of course you cannot directly access Windows internal structures'
1010  */
1011 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
1012 {
1013     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
1014
1015     if (dwProcessID && dwProcessID != GetCurrentProcessId())
1016     {
1017         ERR("%d: process %lx not accessible\n", offset, dwProcessID);
1018         return;
1019     }
1020
1021     switch ( offset )
1022     {
1023     case GPD_APP_COMPAT_FLAGS:
1024     case GPD_LOAD_DONE_EVENT:
1025     case GPD_HINSTANCE16:
1026     case GPD_WINDOWS_VERSION:
1027     case GPD_THDB:
1028     case GPD_PDB:
1029     case GPD_STARTF_SHELLDATA:
1030     case GPD_STARTF_HOTKEY:
1031     case GPD_STARTF_SHOWWINDOW:
1032     case GPD_STARTF_SIZE:
1033     case GPD_STARTF_POSITION:
1034     case GPD_STARTF_FLAGS:
1035     case GPD_PARENT:
1036     case GPD_FLAGS:
1037         ERR_(win32)("Not allowed to modify offset %d\n", offset );
1038         break;
1039
1040     case GPD_USERDATA:
1041         current_process.process_dword = value;
1042         break;
1043
1044     default:
1045         ERR_(win32)("Unknown offset %d\n", offset );
1046         break;
1047     }
1048 }
1049
1050
1051 /*********************************************************************
1052  *           OpenProcess   (KERNEL32.543)
1053  */
1054 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
1055 {
1056     HANDLE ret = 0;
1057     SERVER_START_REQ( open_process )
1058     {
1059         req->pid     = (void *)id;
1060         req->access  = access;
1061         req->inherit = inherit;
1062         if (!SERVER_CALL_ERR()) ret = req->handle;
1063     }
1064     SERVER_END_REQ;
1065     return ret;
1066 }
1067
1068 /*********************************************************************
1069  *           MapProcessHandle   (KERNEL.483)
1070  */
1071 DWORD WINAPI MapProcessHandle( HANDLE handle )
1072 {
1073     DWORD ret = 0;
1074     SERVER_START_REQ( get_process_info )
1075     {
1076         req->handle = handle;
1077         if (!SERVER_CALL_ERR()) ret = (DWORD)req->pid;
1078     }
1079     SERVER_END_REQ;
1080     return ret;
1081 }
1082
1083 /***********************************************************************
1084  *           SetPriorityClass   (KERNEL32.@)
1085  */
1086 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
1087 {
1088     BOOL ret;
1089     SERVER_START_REQ( set_process_info )
1090     {
1091         req->handle   = hprocess;
1092         req->priority = priorityclass;
1093         req->mask     = SET_PROCESS_INFO_PRIORITY;
1094         ret = !SERVER_CALL_ERR();
1095     }
1096     SERVER_END_REQ;
1097     return ret;
1098 }
1099
1100
1101 /***********************************************************************
1102  *           GetPriorityClass   (KERNEL32.@)
1103  */
1104 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
1105 {
1106     DWORD ret = 0;
1107     SERVER_START_REQ( get_process_info )
1108     {
1109         req->handle = hprocess;
1110         if (!SERVER_CALL_ERR()) ret = req->priority;
1111     }
1112     SERVER_END_REQ;
1113     return ret;
1114 }
1115
1116
1117 /***********************************************************************
1118  *          SetProcessAffinityMask   (KERNEL32.@)
1119  */
1120 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
1121 {
1122     BOOL ret;
1123     SERVER_START_REQ( set_process_info )
1124     {
1125         req->handle   = hProcess;
1126         req->affinity = affmask;
1127         req->mask     = SET_PROCESS_INFO_AFFINITY;
1128         ret = !SERVER_CALL_ERR();
1129     }
1130     SERVER_END_REQ;
1131     return ret;
1132 }
1133
1134 /**********************************************************************
1135  *          GetProcessAffinityMask    (KERNEL32.373)
1136  */
1137 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
1138                                       LPDWORD lpProcessAffinityMask,
1139                                       LPDWORD lpSystemAffinityMask )
1140 {
1141     BOOL ret = FALSE;
1142     SERVER_START_REQ( get_process_info )
1143     {
1144         req->handle = hProcess;
1145         if (!SERVER_CALL_ERR())
1146         {
1147             if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
1148             if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
1149             ret = TRUE;
1150         }
1151     }
1152     SERVER_END_REQ;
1153     return ret;
1154 }
1155
1156
1157 /***********************************************************************
1158  *           GetProcessVersion    (KERNEL32.@)
1159  */
1160 DWORD WINAPI GetProcessVersion( DWORD processid )
1161 {
1162     IMAGE_NT_HEADERS *nt;
1163
1164     if (processid && processid != GetCurrentProcessId())
1165     {
1166         FIXME("should use ReadProcessMemory\n");
1167         return 0;
1168     }
1169     if ((nt = RtlImageNtHeader( current_process.module )))
1170         return ((nt->OptionalHeader.MajorSubsystemVersion << 16) |
1171                 nt->OptionalHeader.MinorSubsystemVersion);
1172     return 0;
1173 }
1174
1175 /***********************************************************************
1176  *           GetProcessFlags    (KERNEL32.@)
1177  */
1178 DWORD WINAPI GetProcessFlags( DWORD processid )
1179 {
1180     if (processid && processid != GetCurrentProcessId()) return 0;
1181     return current_process.flags;
1182 }
1183
1184
1185 /***********************************************************************
1186  *              SetProcessWorkingSetSize        [KERNEL32.662]
1187  * Sets the min/max working set sizes for a specified process.
1188  *
1189  * PARAMS
1190  *    hProcess [I] Handle to the process of interest
1191  *    minset   [I] Specifies minimum working set size
1192  *    maxset   [I] Specifies maximum working set size
1193  *
1194  * RETURNS  STD
1195  */
1196 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1197                                        DWORD maxset)
1198 {
1199     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1200     if(( minset == (DWORD)-1) && (maxset == (DWORD)-1)) {
1201         /* Trim the working set to zero */
1202         /* Swap the process out of physical RAM */
1203     }
1204     return TRUE;
1205 }
1206
1207 /***********************************************************************
1208  *           GetProcessWorkingSetSize    (KERNEL32.@)
1209  */
1210 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1211                                        LPDWORD maxset)
1212 {
1213         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1214         /* 32 MB working set size */
1215         if (minset) *minset = 32*1024*1024;
1216         if (maxset) *maxset = 32*1024*1024;
1217         return TRUE;
1218 }
1219
1220 /***********************************************************************
1221  *           SetProcessShutdownParameters    (KERNEL32.@)
1222  *
1223  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1224  * Now tracks changes made (but does not act on these changes)
1225  */
1226 static DWORD shutdown_flags = 0;
1227 static DWORD shutdown_priority = 0x280;
1228
1229 BOOL WINAPI SetProcessShutdownParameters(DWORD level, DWORD flags)
1230 {
1231     FIXME("(%08lx, %08lx): partial stub.\n", level, flags);
1232     shutdown_flags = flags;
1233     shutdown_priority = level;
1234     return TRUE;
1235 }
1236
1237
1238 /***********************************************************************
1239  * GetProcessShutdownParameters                 (KERNEL32.@)
1240  *
1241  */
1242 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel, LPDWORD lpdwFlags )
1243 {
1244     *lpdwLevel = shutdown_priority;
1245     *lpdwFlags = shutdown_flags;
1246     return TRUE;
1247 }
1248
1249
1250 /***********************************************************************
1251  *           SetProcessPriorityBoost    (KERNEL32.@)
1252  */
1253 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1254 {
1255     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1256     /* Say we can do it. I doubt the program will notice that we don't. */
1257     return TRUE;
1258 }
1259
1260
1261 /***********************************************************************
1262  *              ReadProcessMemory (KERNEL32.@)
1263  *              ReadProcessMemory (WIN32S16.6)
1264  */
1265 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1266                                LPDWORD bytes_read )
1267 {
1268     unsigned int offset = (unsigned int)addr % sizeof(int);
1269     unsigned int pos = 0, len, max;
1270     int res;
1271
1272     if (bytes_read) *bytes_read = size;
1273
1274     /* first time, read total length to check for permissions */
1275     len = (size + offset + sizeof(int) - 1) / sizeof(int);
1276     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1277
1278     for (;;)
1279     {
1280         SERVER_START_VAR_REQ( read_process_memory, max )
1281         {
1282             req->handle = process;
1283             req->addr   = (char *)addr + pos - offset;
1284             req->len    = len;
1285             if (!(res = SERVER_CALL_ERR()))
1286             {
1287                 size_t result = server_data_size( req );
1288                 if (result > size + offset) result = size + offset;
1289                 memcpy( (char *)buffer + pos, server_data_ptr(req) + offset, result - offset );
1290                 size -= result - offset;
1291                 pos += result - offset;
1292             }
1293         }
1294         SERVER_END_VAR_REQ;
1295         if (res)
1296         {
1297             if (bytes_read) *bytes_read = 0;
1298             return FALSE;
1299         }
1300         if (!size) return TRUE;
1301         max = min( REQUEST_MAX_VAR_SIZE, size );
1302         len = (max + sizeof(int) - 1) / sizeof(int);
1303         offset = 0;
1304     }
1305 }
1306
1307
1308 /***********************************************************************
1309  *           WriteProcessMemory                 (KERNEL32.@)
1310  */
1311 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1312                                 LPDWORD bytes_written )
1313 {
1314     unsigned int first_offset, last_offset;
1315     unsigned int pos = 0, len, max, first_mask, last_mask;
1316     int res;
1317
1318     if (!size)
1319     {
1320         SetLastError( ERROR_INVALID_PARAMETER );
1321         return FALSE;
1322     }
1323     if (bytes_written) *bytes_written = size;
1324
1325     /* compute the mask for the first int */
1326     first_mask = ~0;
1327     first_offset = (unsigned int)addr % sizeof(int);
1328     memset( &first_mask, 0, first_offset );
1329
1330     /* compute the mask for the last int */
1331     last_offset = (size + first_offset) % sizeof(int);
1332     last_mask = 0;
1333     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1334
1335     /* for the first request, use the total length */
1336     len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1337     max = min( REQUEST_MAX_VAR_SIZE, len * sizeof(int) );
1338
1339     for (;;)
1340     {
1341         SERVER_START_VAR_REQ( write_process_memory, max )
1342         {
1343             req->handle = process;
1344             req->addr = (char *)addr - first_offset + pos;
1345             req->len = len;
1346             req->first_mask = (!pos) ? first_mask : ~0;
1347             if (size + first_offset <= max)  /* last round */
1348             {
1349                 req->last_mask = last_mask;
1350                 max = size + first_offset;
1351             }
1352             else req->last_mask = ~0;
1353
1354             memcpy( (char *)server_data_ptr(req) + first_offset, (char *)buffer + pos,
1355                     max - first_offset );
1356             if (!(res = SERVER_CALL_ERR()))
1357             {
1358                 pos += max - first_offset;
1359                 size -= max - first_offset;
1360             }
1361         }
1362         SERVER_END_VAR_REQ;
1363         if (res)
1364         {
1365             if (bytes_written) *bytes_written = 0;
1366             return FALSE;
1367         }
1368         if (!size) return TRUE;
1369         first_offset = 0;
1370         len = min( size + sizeof(int) - 1, REQUEST_MAX_VAR_SIZE ) / sizeof(int);
1371         max = len * sizeof(int);
1372     }
1373 }
1374
1375
1376 /***********************************************************************
1377  *              RegisterServiceProcess (KERNEL.491)
1378  *              RegisterServiceProcess (KERNEL32.@)
1379  *
1380  * A service process calls this function to ensure that it continues to run
1381  * even after a user logged off.
1382  */
1383 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1384 {
1385         /* I don't think that Wine needs to do anything in that function */
1386         return 1; /* success */
1387 }
1388
1389 /***********************************************************************
1390  * GetExitCodeProcess [KERNEL32.325]
1391  *
1392  * Gets termination status of specified process
1393  *
1394  * RETURNS
1395  *   Success: TRUE
1396  *   Failure: FALSE
1397  */
1398 BOOL WINAPI GetExitCodeProcess(
1399     HANDLE hProcess,    /* [in] handle to the process */
1400     LPDWORD lpExitCode) /* [out] address to receive termination status */
1401 {
1402     BOOL ret;
1403     SERVER_START_REQ( get_process_info )
1404     {
1405         req->handle = hProcess;
1406         ret = !SERVER_CALL_ERR();
1407         if (ret && lpExitCode) *lpExitCode = req->exit_code;
1408     }
1409     SERVER_END_REQ;
1410     return ret;
1411 }
1412
1413
1414 /***********************************************************************
1415  *           SetErrorMode   (KERNEL32.@)
1416  */
1417 UINT WINAPI SetErrorMode( UINT mode )
1418 {
1419     UINT old = current_process.error_mode;
1420     current_process.error_mode = mode;
1421     return old;
1422 }
1423
1424
1425 /**********************************************************************
1426  * TlsAlloc [KERNEL32.@]  Allocates a TLS index.
1427  *
1428  * Allocates a thread local storage index
1429  *
1430  * RETURNS
1431  *    Success: TLS Index
1432  *    Failure: 0xFFFFFFFF
1433  */
1434 DWORD WINAPI TlsAlloc( void )
1435 {
1436     DWORD i, mask, ret = 0;
1437     DWORD *bits = current_process.tls_bits;
1438     RtlAcquirePebLock();
1439     if (*bits == 0xffffffff)
1440     {
1441         bits++;
1442         ret = 32;
1443         if (*bits == 0xffffffff)
1444         {
1445             RtlReleasePebLock();
1446             SetLastError( ERROR_NO_MORE_ITEMS );
1447             return 0xffffffff;
1448         }
1449     }
1450     for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
1451     *bits |= mask;
1452     RtlReleasePebLock();
1453     return ret + i;
1454 }
1455
1456
1457 /**********************************************************************
1458  * TlsFree [KERNEL32.@]  Releases a TLS index.
1459  *
1460  * Releases a thread local storage index, making it available for reuse
1461  *
1462  * RETURNS
1463  *    Success: TRUE
1464  *    Failure: FALSE
1465  */
1466 BOOL WINAPI TlsFree(
1467     DWORD index) /* [in] TLS Index to free */
1468 {
1469     DWORD mask = (1 << (index & 31));
1470     DWORD *bits = current_process.tls_bits;
1471     if (index >= 64)
1472     {
1473         SetLastError( ERROR_INVALID_PARAMETER );
1474         return FALSE;
1475     }
1476     if (index >= 32) bits++;
1477     RtlAcquirePebLock();
1478     if (!(*bits & mask))  /* already free? */
1479     {
1480         RtlReleasePebLock();
1481         SetLastError( ERROR_INVALID_PARAMETER );
1482         return FALSE;
1483     }
1484     *bits &= ~mask;
1485     NtCurrentTeb()->tls_array[index] = 0;
1486     /* FIXME: should zero all other thread values */
1487     RtlReleasePebLock();
1488     return TRUE;
1489 }
1490
1491
1492 /**********************************************************************
1493  * TlsGetValue [KERNEL32.@]  Gets value in a thread's TLS slot
1494  *
1495  * RETURNS
1496  *    Success: Value stored in calling thread's TLS slot for index
1497  *    Failure: 0 and GetLastError returns NO_ERROR
1498  */
1499 LPVOID WINAPI TlsGetValue(
1500     DWORD index) /* [in] TLS index to retrieve value for */
1501 {
1502     if (index >= 64)
1503     {
1504         SetLastError( ERROR_INVALID_PARAMETER );
1505         return NULL;
1506     }
1507     SetLastError( ERROR_SUCCESS );
1508     return NtCurrentTeb()->tls_array[index];
1509 }
1510
1511
1512 /**********************************************************************
1513  * TlsSetValue [KERNEL32.@]  Stores a value in the thread's TLS slot.
1514  *
1515  * RETURNS
1516  *    Success: TRUE
1517  *    Failure: FALSE
1518  */
1519 BOOL WINAPI TlsSetValue(
1520     DWORD index,  /* [in] TLS index to set value for */
1521     LPVOID value) /* [in] Value to be stored */
1522 {
1523     if (index >= 64)
1524     {
1525         SetLastError( ERROR_INVALID_PARAMETER );
1526         return FALSE;
1527     }
1528     NtCurrentTeb()->tls_array[index] = value;
1529     return TRUE;
1530 }
1531
1532
1533 /***********************************************************************
1534  *           GetCurrentProcess   (KERNEL32.@)
1535  */
1536 #undef GetCurrentProcess
1537 HANDLE WINAPI GetCurrentProcess(void)
1538 {
1539     return 0xffffffff;
1540 }