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 "winbase.h"
  11 #include "wine/winbase16.h"
  12 #include "wine/winestring.h"
  13 #include "builtin32.h"
  14 #include "global.h"
  15 #include "heap.h"
  16 #include "module.h"
  17 #include "miscemu.h"
  18 #include "neexe.h"
  19 #include "stackframe.h"
  20 #include "user.h"
  21 #include "process.h"
  22 #include "snoop.h"
  23 #include "task.h"
  24 #include "debug.h"
  25
  26 /* Built-in modules descriptors */
  27 /* Don't change these structures! (see tools/build.c) */
  28
  29 typedef struct
  30 {
  31     const char *name;              /* DLL name */
  32     void       *module_start;      /* 32-bit address of the module data */
  33     int         module_size;       /* Size of the module data */
  34     const BYTE *code_start;        /* 32-bit address of DLL code */
  35     const BYTE *data_start;        /* 32-bit address of DLL data */
  36 } WIN16_DESCRIPTOR;
  37
  38 typedef struct
  39 {
  40     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  41     int                     flags;     /* flags (see below) */
  42 } BUILTIN16_DLL;
  43
  44 /* DLL flags */
  45 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  46 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  47
  48 /* 16-bit DLLs */
  49
  50 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  51 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  52 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  53 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  54 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  55 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  56 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  57 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  58 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  59 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  60 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  61 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  62 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  63 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  64 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  65 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  66 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  67 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  69 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  70 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  71 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  72 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  73 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  74 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  75 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  76 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  77 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  78 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  79 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  80 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  81 extern const WIN16_DESCRIPTOR USER_Descriptor;
  82 extern const WIN16_DESCRIPTOR VER_Descriptor;
  83 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  84 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  85 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  86 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  87 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  88 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  89 extern const WIN16_DESCRIPTOR WING_Descriptor;
  90 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  91 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  92
  93 /* Table of all built-in DLLs */
  94
  95 static BUILTIN16_DLL BuiltinDLLs[] =
  96 {
  97     { &KERNEL_Descriptor,   0 },
  98     { &USER_Descriptor,     0 },
  99     { &GDI_Descriptor,      0 },
 100     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 101     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
 102     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 103     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 104     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 105     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 106     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 107     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 108     { &DISPDIB_Descriptor,  0 },
 109     { &KEYBOARD_Descriptor, 0 },
 110     { &COMM_Descriptor,     0 },
 111     { &LZEXPAND_Descriptor, 0 },
 112     { &MMSYSTEM_Descriptor, 0 },
 113     { &MOUSE_Descriptor,    0 },
 114     { &MSACM_Descriptor,    0 },
 115     { &MSVIDEO_Descriptor,  0 },
 116     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 117     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 118     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 119     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 120     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 121     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 122     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 123     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 124     { &RASAPI16_Descriptor, 0 },
 125     { &SHELL_Descriptor,    0 },
 126     { &SOUND_Descriptor,    0 },
 127     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 128     { &STRESS_Descriptor,   0 },
 129     { &TOOLHELP_Descriptor, 0 },
 130     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 131     { &VER_Descriptor,      0 },
 132     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 133     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 134     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 135     { &WINASPI_Descriptor,  0 },
 136     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 137     { &WING_Descriptor,     0 },
 138     { &WINSOCK_Descriptor,  0 },
 139     /* Last entry */
 140     { NULL, 0 }
 141 };
 142
 143   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 144 #define FIRST_INTERRUPT_ORDINAL 100
 145
 146
 147 /***********************************************************************
 148  *           BUILTIN_DoLoadModule16
 149  *
 150  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 151  * and BUILTIN_Init.
 152  */
 153 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 154 {
 155     NE_MODULE *pModule;
 156     int minsize;
 157     SEGTABLEENTRY *pSegTable;
 158
 159     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 160                                             descr->module_size, 0,
 161                                             FALSE, FALSE, FALSE, NULL );
 162     if (!hModule) return 0;
 163     FarSetOwner16( hModule, hModule );
 164
 165     TRACE(module, "Built-in %s: hmodule=%04x\n",
 166                     descr->name, hModule );
 167     pModule = (NE_MODULE *)GlobalLock16( hModule );
 168     pModule->self = hModule;
 169
 170     /* Allocate the code segment */
 171
 172     pSegTable = NE_SEG_TABLE( pModule );
 173     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 174                                               pSegTable->minsize, hModule,
 175                                               TRUE, TRUE, FALSE, NULL );
 176     if (!pSegTable->hSeg) return 0;
 177     pSegTable++;
 178
 179     /* Allocate the data segment */
 180
 181     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 182     minsize += pModule->heap_size;
 183     if (minsize > 0x10000) minsize = 0x10000;
 184     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 185                                         hModule, FALSE, FALSE, FALSE );
 186     if (!pSegTable->hSeg) return 0;
 187     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 188                                     descr->data_start, pSegTable->minsize);
 189     if (pModule->heap_size)
 190         LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
 191                 pSegTable->minsize, minsize );
 192
 193     NE_RegisterModule( pModule );
 194     return hModule;
 195 }
 196
 197
 198 /***********************************************************************
 199  *           BUILTIN_Init
 200  *
 201  * Load all built-in modules marked as 'always used'.
 202  */
 203 BOOL BUILTIN_Init(void)
 204 {
 205     BUILTIN16_DLL *dll;
 206     WORD vector;
 207     HMODULE16 hModule;
 208
 209     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 210
 211     for (dll = BuiltinDLLs; dll->descr; dll++)
 212     {
 213         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 214             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 215     }
 216
 217     /* Set interrupt vectors from entry points in WPROCS.DLL */
 218
 219     hModule = GetModuleHandle16( "WPROCS" );
 220     for (vector = 0; vector < 256; vector++)
 221     {
 222         FARPROC16 proc = NE_GetEntryPoint( hModule,
 223                                            FIRST_INTERRUPT_ORDINAL + vector );
 224         assert(proc);
 225         INT_SetPMHandler( vector, proc );
 226     }
 227
 228     SNOOP16_Init();
 229
 230     return TRUE;
 231 }
 232
 233
 234 /***********************************************************************
 235  *           BUILTIN_LoadModule
 236  *
 237  * Load a built-in module. If the 'force' parameter is FALSE, we only
 238  * load the module if it has not been disabled via the -dll option.
 239  */
 240 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL force )
 241 {
 242     BUILTIN16_DLL *table;
 243     char dllname[16], *p;
 244
 245     /* Fix the name in case we have a full path and extension */
 246
 247     if ((p = strrchr( name, '\\' ))) name = p + 1;
 248     lstrcpynA( dllname, name, sizeof(dllname) );
 249     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 250
 251     for (table = BuiltinDLLs; table->descr; table++)
 252         if (!lstrcmpiA( table->descr->name, dllname )) break;
 253     if (!table->descr) return 0;
 254     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 255
 256     return BUILTIN_DoLoadModule16( table->descr );
 257 }
 258
 259
 260 /***********************************************************************
 261  *           BUILTIN_GetEntryPoint16
 262  *
 263  * Return the ordinal and name corresponding to a CS:IP address.
 264  * This is used only by relay debugging.
 265  */
 266 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 267 {
 268     static char buffer[80];
 269     WORD ordinal, i, max_offset;
 270     register BYTE *p;
 271     NE_MODULE *pModule;
 272
 273     if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16(cs) ))))
 274         return NULL;
 275
 276     /* Search for the ordinal */
 277
 278     p = (BYTE *)pModule + pModule->entry_table;
 279     max_offset = 0;
 280     ordinal = 1;
 281     *pOrd = 0;
 282     while (*p)
 283     {
 284         switch(p[1])
 285         {
 286         case 0:    /* unused */
 287             ordinal += *p;
 288             p += 2;
 289             break;
 290         case 1:    /* code segment */
 291             i = *p;
 292             p += 2;
 293             while (i-- > 0)
 294             {
 295                 p++;
 296                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 297                 {
 298                     max_offset = *(WORD *)p;
 299                     *pOrd = ordinal;
 300                 }
 301                 p += 2;
 302                 ordinal++;
 303             }
 304             break;
 305         case 0xff: /* moveable (should not happen in built-in modules) */
 306             TRACE( relay, "Built-in module has moveable entry\n" );
 307             ordinal += *p;
 308             p += 2 + *p * 6;
 309             break;
 310         default:   /* other segment */
 311             ordinal += *p;
 312             p += 2 + *p * 3;
 313             break;
 314         }
 315     }
 316
 317     /* Search for the name in the resident names table */
 318     /* (built-in modules have no non-resident table)   */
 319
 320     p = (BYTE *)pModule + pModule->name_table;
 321     while (*p)
 322     {
 323         p += *p + 1 + sizeof(WORD);
 324         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 325     }
 326
 327     sprintf( buffer, "%.*s.%d: %.*s",
 328              *((BYTE *)pModule + pModule->name_table),
 329              (char *)pModule + pModule->name_table + 1,
 330              *pOrd, *p, (char *)(p + 1) );
 331     return buffer;
 332 }
 333
 334
 335 /**********************************************************************
 336  *          BUILTIN_DefaultIntHandler
 337  *
 338  * Default interrupt handler.
 339  */
 340 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 341 {
 342     WORD ordinal;
 343     STACK16FRAME *frame = CURRENT_STACK16;
 344     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 345     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 346 }
 347
 348
 349 /***********************************************************************
 350  *           BUILTIN_ParseDLLOptions
 351  *
 352  * Set runtime DLL usage flags
 353  */
 354 BOOL BUILTIN_ParseDLLOptions( char *str )
 355 {
 356     BUILTIN16_DLL *dll;
 357     char *p,*last;
 358
 359
 360     last = str;
 361     while (*str)
 362     {
 363         while (*str && (*str==',' || isspace(*str))) str++;
 364         if (!*str) {
 365             *last = '\0'; /* cut off garbage at end at */
 366             return TRUE;
 367         }
 368         if ((*str != '+') && (*str != '-')) return FALSE;
 369         str++;
 370         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 371         while ((p > str) && isspace(p[-1])) p--;
 372         if (p == str) return FALSE;
 373         for (dll = BuiltinDLLs; dll->descr; dll++)
 374         {
 375             if (!lstrncmpiA( str, dll->descr->name, (int)(p - str) ))
 376             {
 377                 if (dll->descr->name[(int)(p-str)])  /* only partial match */
 378                         continue;
 379                 if (str[-1] == '-')
 380                 {
 381                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 382                     dll->flags |= DLL_FLAG_NOT_USED;
 383                 }
 384                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 385                 break;
 386             }
 387         }
 388         if (!dll->descr) {
 389             /* not found, but could get handled by BUILTIN32_, so move last */
 390             last = p;
 391             str = p;
 392         } else {
 393             /* handled. cut out the "[+-]DLL," string, so it isn't handled
 394              * by BUILTIN32
 395              */
 396             if (*p) {
 397                 memcpy(last,p,strlen(p)+1);
 398                 str = last;
 399             } else {
 400                 *last = '\0';
 401                 break;
 402             }
 403         }
 404     }
 405     return TRUE;
 406 }
 407
 408
 409 /***********************************************************************
 410  *           BUILTIN_PrintDLLs
 411  *
 412  * Print the list of built-in DLLs that can be disabled.
 413  */
 414 void BUILTIN_PrintDLLs(void)
 415 {
 416     int i;
 417     BUILTIN16_DLL *dll;
 418
 419     MSG("Example: -dll -ole2    Do not use emulated OLE2.DLL\n");
 420     MSG("Available Win16 DLLs:\n");
 421     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 422     {
 423         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 424             MSG("%-9s%c", dll->descr->name,
 425                      ((++i) % 8) ? ' ' : '\n' );
 426     }
 427     MSG("\n");
 428     BUILTIN32_PrintDLLs();
 429 }