if1632/builtin.c

   1 /*
   2  * Built-in modules
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include "windows.h"
  11 #include "builtin32.h"
  12 #include "gdi.h"
  13 #include "global.h"
  14 #include "heap.h"
  15 #include "module.h"
  16 #include "miscemu.h"
  17 #include "neexe.h"
  18 #include "stackframe.h"
  19 #include "user.h"
  20 #include "process.h"
  21 #include "snoop.h"
  22 #include "task.h"
  23 #include "debug.h"
  24
  25 /* Built-in modules descriptors */
  26 /* Don't change these structures! (see tools/build.c) */
  27
  28 typedef struct
  29 {
  30     const char *name;              /* DLL name */
  31     void       *module_start;      /* 32-bit address of the module data */
  32     int         module_size;       /* Size of the module data */
  33     const BYTE *code_start;        /* 32-bit address of DLL code */
  34     const BYTE *data_start;        /* 32-bit address of DLL data */
  35 } WIN16_DESCRIPTOR;
  36
  37 typedef struct
  38 {
  39     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  40     int                     flags;     /* flags (see below) */
  41 } BUILTIN16_DLL;
  42
  43 /* DLL flags */
  44 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  45 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  46
  47 /* 16-bit DLLs */
  48
  49 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  50 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  51 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  52 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  53 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  54 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  55 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  56 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  57 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  58 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  59 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  60 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  61 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  62 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  63 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  64 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  65 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  66 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  67 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  69 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  70 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  71 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  72 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  73 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  74 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  75 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  76 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  77 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  78 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  79 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  80 extern const WIN16_DESCRIPTOR USER_Descriptor;
  81 extern const WIN16_DESCRIPTOR VER_Descriptor;
  82 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  83 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  84 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  85 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  86 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  87 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  88 extern const WIN16_DESCRIPTOR WING_Descriptor;
  89 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  90 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  91
  92 /* Table of all built-in DLLs */
  93
  94 static BUILTIN16_DLL BuiltinDLLs[] =
  95 {
  96     { &KERNEL_Descriptor,   0 },
  97     { &USER_Descriptor,     0 },
  98     { &GDI_Descriptor,      0 },
  99     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 100     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
 101     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 102     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 103     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 104     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 105     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 106     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 107     { &DISPDIB_Descriptor,  0 },
 108     { &KEYBOARD_Descriptor, 0 },
 109     { &COMM_Descriptor,     0 },
 110     { &LZEXPAND_Descriptor, 0 },
 111     { &MMSYSTEM_Descriptor, 0 },
 112     { &MOUSE_Descriptor,    0 },
 113     { &MSACM_Descriptor,    0 },
 114     { &MSVIDEO_Descriptor,  0 },
 115     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 116     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 117     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 118     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 119     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 120     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 121     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 122     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 123     { &RASAPI16_Descriptor, 0 },
 124     { &SHELL_Descriptor,    0 },
 125     { &SOUND_Descriptor,    0 },
 126     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 127     { &STRESS_Descriptor,   0 },
 128     { &TOOLHELP_Descriptor, 0 },
 129     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 130     { &VER_Descriptor,      0 },
 131     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 132     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 133     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 134     { &WINASPI_Descriptor,  0 },
 135     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 136     { &WING_Descriptor,     0 },
 137     { &WINSOCK_Descriptor,  0 },
 138     /* Last entry */
 139     { NULL, 0 }
 140 };
 141
 142   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 143 #define FIRST_INTERRUPT_ORDINAL 100
 144
 145
 146 /***********************************************************************
 147  *           BUILTIN_DoLoadModule16
 148  *
 149  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 150  * and BUILTIN_Init.
 151  */
 152 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 153 {
 154     NE_MODULE *pModule;
 155     int minsize;
 156     SEGTABLEENTRY *pSegTable;
 157
 158     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 159                                             descr->module_size, 0,
 160                                             FALSE, FALSE, FALSE, NULL );
 161     if (!hModule) return 0;
 162     FarSetOwner( hModule, hModule );
 163
 164     TRACE(module, "Built-in %s: hmodule=%04x\n",
 165                     descr->name, hModule );
 166     pModule = (NE_MODULE *)GlobalLock16( hModule );
 167     pModule->self = hModule;
 168
 169     /* Allocate the code segment */
 170
 171     pSegTable = NE_SEG_TABLE( pModule );
 172     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 173                                               pSegTable->minsize, hModule,
 174                                               TRUE, TRUE, FALSE, NULL );
 175     if (!pSegTable->hSeg) return 0;
 176     pSegTable++;
 177
 178     /* Allocate the data segment */
 179
 180     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 181     minsize += pModule->heap_size;
 182     if (minsize > 0x10000) minsize = 0x10000;
 183     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 184                                         hModule, FALSE, FALSE, FALSE );
 185     if (!pSegTable->hSeg) return 0;
 186     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 187                                     descr->data_start, pSegTable->minsize);
 188     if (pModule->heap_size)
 189         LocalInit( GlobalHandleToSel(pSegTable->hSeg),
 190                 pSegTable->minsize, minsize );
 191
 192     NE_RegisterModule( pModule );
 193     return hModule;
 194 }
 195
 196
 197 /***********************************************************************
 198  *           BUILTIN_Init
 199  *
 200  * Load all built-in modules marked as 'always used'.
 201  */
 202 BOOL32 BUILTIN_Init(void)
 203 {
 204     BUILTIN16_DLL *dll;
 205     WORD vector;
 206     HMODULE16 hModule;
 207
 208     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 209
 210     for (dll = BuiltinDLLs; dll->descr; dll++)
 211     {
 212         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 213             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 214     }
 215
 216     /* Set interrupt vectors from entry points in WPROCS.DLL */
 217
 218     hModule = GetModuleHandle16( "WPROCS" );
 219     for (vector = 0; vector < 256; vector++)
 220     {
 221         FARPROC16 proc = NE_GetEntryPoint( hModule,
 222                                            FIRST_INTERRUPT_ORDINAL + vector );
 223         assert(proc);
 224         INT_SetPMHandler( vector, proc );
 225     }
 226
 227     SNOOP16_Init();
 228
 229     return TRUE;
 230 }
 231
 232
 233 /***********************************************************************
 234  *           BUILTIN_LoadModule
 235  *
 236  * Load a built-in module. If the 'force' parameter is FALSE, we only
 237  * load the module if it has not been disabled via the -dll option.
 238  */
 239 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL32 force )
 240 {
 241     BUILTIN16_DLL *table;
 242     char dllname[16], *p;
 243
 244     /* Fix the name in case we have a full path and extension */
 245
 246     if ((p = strrchr( name, '\\' ))) name = p + 1;
 247     lstrcpyn32A( dllname, name, sizeof(dllname) );
 248     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 249
 250     for (table = BuiltinDLLs; table->descr; table++)
 251         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 252     if (!table->descr) return 0;
 253     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 254
 255     return BUILTIN_DoLoadModule16( table->descr );
 256 }
 257
 258
 259 /***********************************************************************
 260  *           BUILTIN_GetEntryPoint16
 261  *
 262  * Return the ordinal and name corresponding to a CS:IP address.
 263  * This is used only by relay debugging.
 264  */
 265 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 266 {
 267     static char buffer[80];
 268     WORD ordinal, i, max_offset;
 269     register BYTE *p;
 270     NE_MODULE *pModule;
 271
 272     if (!(pModule = NE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 273         return NULL;
 274
 275     /* Search for the ordinal */
 276
 277     p = (BYTE *)pModule + pModule->entry_table;
 278     max_offset = 0;
 279     ordinal = 1;
 280     *pOrd = 0;
 281     while (*p)
 282     {
 283         switch(p[1])
 284         {
 285         case 0:    /* unused */
 286             ordinal += *p;
 287             p += 2;
 288             break;
 289         case 1:    /* code segment */
 290             i = *p;
 291             p += 2;
 292             while (i-- > 0)
 293             {
 294                 p++;
 295                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 296                 {
 297                     max_offset = *(WORD *)p;
 298                     *pOrd = ordinal;
 299                 }
 300                 p += 2;
 301                 ordinal++;
 302             }
 303             break;
 304         case 0xff: /* moveable (should not happen in built-in modules) */
 305             TRACE( relay, "Built-in module has moveable entry\n" );
 306             ordinal += *p;
 307             p += 2 + *p * 6;
 308             break;
 309         default:   /* other segment */
 310             ordinal += *p;
 311             p += 2 + *p * 3;
 312             break;
 313         }
 314     }
 315
 316     /* Search for the name in the resident names table */
 317     /* (built-in modules have no non-resident table)   */
 318
 319     p = (BYTE *)pModule + pModule->name_table;
 320     while (*p)
 321     {
 322         p += *p + 1 + sizeof(WORD);
 323         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 324     }
 325
 326     sprintf( buffer, "%.*s.%d: %.*s",
 327              *((BYTE *)pModule + pModule->name_table),
 328              (char *)pModule + pModule->name_table + 1,
 329              *pOrd, *p, (char *)(p + 1) );
 330     return buffer;
 331 }
 332
 333
 334 /**********************************************************************
 335  *          BUILTIN_DefaultIntHandler
 336  *
 337  * Default interrupt handler.
 338  */
 339 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 340 {
 341     WORD ordinal;
 342     STACK16FRAME *frame = CURRENT_STACK16;
 343     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 344     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 345 }
 346
 347
 348 /***********************************************************************
 349  *           BUILTIN_ParseDLLOptions
 350  *
 351  * Set runtime DLL usage flags
 352  */
 353 BOOL32 BUILTIN_ParseDLLOptions( const char *str )
 354 {
 355     BUILTIN16_DLL *dll;
 356     const char *p;
 357
 358     while (*str)
 359     {
 360         while (*str && isspace(*str)) str++;
 361         if (!*str) return TRUE;
 362         if ((*str != '+') && (*str != '-')) return FALSE;
 363         str++;
 364         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 365         while ((p > str) && isspace(p[-1])) p--;
 366         if (p == str) return FALSE;
 367         for (dll = BuiltinDLLs; dll->descr; dll++)
 368         {
 369             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 370             {
 371                 if (dll->descr->name[(int)(p-str)])  /* only partial match */
 372                         continue;
 373                 if (str[-1] == '-')
 374                 {
 375                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 376                     dll->flags |= DLL_FLAG_NOT_USED;
 377                 }
 378                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 379                 break;
 380             }
 381         }
 382         if (!dll->descr)
 383             if (!BUILTIN32_EnableDLL( str, (int)(p - str), (str[-1] == '+') ))
 384                 return FALSE;
 385         str = p;
 386         while (*str && (isspace(*str) || (*str == ','))) str++;
 387     }
 388     return TRUE;
 389 }
 390
 391
 392 /***********************************************************************
 393  *           BUILTIN_PrintDLLs
 394  *
 395  * Print the list of built-in DLLs that can be disabled.
 396  */
 397 void BUILTIN_PrintDLLs(void)
 398 {
 399     int i;
 400     BUILTIN16_DLL *dll;
 401
 402     MSG("Example: -dll -ole2    Do not use emulated OLE2.DLL\n");
 403     MSG("Available Win16 DLLs:\n");
 404     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 405     {
 406         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 407             MSG("%-9s%c", dll->descr->name,
 408                      ((++i) % 8) ? ' ' : '\n' );
 409     }
 410     MSG("\n");
 411     BUILTIN32_PrintDLLs();
 412 }