tools/widl/typelib.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2004 Ove Kaaven
   5  * Copyright 2006 Jacek Caban for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24 #include "wine/wpp.h"
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <string.h>
  33 #include <ctype.h>
  34
  35 #define NONAMELESSUNION
  36 #define NONAMELESSSTRUCT
  37
  38 #include "windef.h"
  39 #include "winbase.h"
  40
  41 #include "widl.h"
  42 #include "utils.h"
  43 #include "parser.h"
  44 #include "header.h"
  45 #include "typelib.h"
  46 #include "widltypes.h"
  47 #include "typelib_struct.h"
  48 #include "typetree.h"
  49
  50 static typelib_t *typelib;
  51
  52 /* List of oleauto types that should be recognized by name.
  53  * (most of) these seem to be intrinsic types in mktyplib.
  54  * This table MUST be alphabetically sorted on the kw field.
  55  */
  56 static const struct oatype {
  57   const char *kw;
  58   unsigned short vt;
  59 } oatypes[] = {
  60   {"BSTR",          VT_BSTR},
  61   {"CURRENCY",      VT_CY},
  62   {"DATE",          VT_DATE},
  63   {"DECIMAL",       VT_DECIMAL},
  64   {"HRESULT",       VT_HRESULT},
  65   {"LPSTR",         VT_LPSTR},
  66   {"LPWSTR",        VT_LPWSTR},
  67   {"SCODE",         VT_ERROR},
  68   {"VARIANT",       VT_VARIANT},
  69   {"VARIANT_BOOL",  VT_BOOL}
  70 };
  71 #define NTYPES (sizeof(oatypes)/sizeof(oatypes[0]))
  72 #define KWP(p) ((const struct oatype *)(p))
  73
  74 static int kw_cmp_func(const void *s1, const void *s2)
  75 {
  76         return strcmp(KWP(s1)->kw, KWP(s2)->kw);
  77 }
  78
  79 static unsigned short builtin_vt(const type_t *t)
  80 {
  81   const char *kw = t->name;
  82   struct oatype key;
  83   const struct oatype *kwp;
  84   key.kw = kw;
  85 #ifdef KW_BSEARCH
  86   kwp = bsearch(&key, oatypes, NTYPES, sizeof(oatypes[0]), kw_cmp_func);
  87 #else
  88   {
  89     unsigned int i;
  90     for (kwp=NULL, i=0; i < NTYPES; i++)
  91       if (!kw_cmp_func(&key, &oatypes[i])) {
  92         kwp = &oatypes[i];
  93         break;
  94       }
  95   }
  96 #endif
  97   if (kwp) {
  98     return kwp->vt;
  99   }
 100   if (is_string_type (t->attrs, t))
 101   {
 102     const type_t *elem_type;
 103     if (is_array(t))
 104       elem_type = type_array_get_element(t);
 105     else
 106       elem_type = type_pointer_get_ref(t);
 107     if (type_get_type(elem_type) == TYPE_BASIC)
 108     {
 109       switch (type_basic_get_type(elem_type))
 110       {
 111       case TYPE_BASIC_CHAR: return VT_LPSTR;
 112       case TYPE_BASIC_WCHAR: return VT_LPWSTR;
 113       default: break;
 114       }
 115     }
 116   }
 117   return 0;
 118 }
 119
 120 static int match(const char*n, const char*m)
 121 {
 122   if (!n) return 0;
 123   return !strcmp(n, m);
 124 }
 125
 126 unsigned short get_type_vt(type_t *t)
 127 {
 128   unsigned short vt;
 129
 130   chat("get_type_vt: %p type->name %s\n", t, t->name);
 131   if (t->name) {
 132     vt = builtin_vt(t);
 133     if (vt) return vt;
 134   }
 135
 136   if (type_is_alias(t) && is_attr(t->attrs, ATTR_PUBLIC))
 137     return VT_USERDEFINED;
 138
 139   switch (type_get_type(t)) {
 140   case TYPE_BASIC:
 141     switch (type_basic_get_type(t)) {
 142     case TYPE_BASIC_BYTE:
 143       return VT_UI1;
 144     case TYPE_BASIC_CHAR:
 145     case TYPE_BASIC_INT8:
 146       if (type_basic_get_sign(t) > 0)
 147         return VT_UI1;
 148       else
 149         return VT_I1;
 150     case TYPE_BASIC_WCHAR:
 151       return VT_I2; /* mktyplib seems to parse wchar_t as short */
 152     case TYPE_BASIC_INT16:
 153       if (type_basic_get_sign(t) > 0)
 154         return VT_UI2;
 155       else
 156         return VT_I2;
 157     case TYPE_BASIC_INT:
 158       if (type_basic_get_sign(t) > 0)
 159         return VT_UINT;
 160       else
 161         return VT_INT;
 162     case TYPE_BASIC_INT32:
 163     case TYPE_BASIC_ERROR_STATUS_T:
 164       if (type_basic_get_sign(t) > 0)
 165         return VT_UI4;
 166       else
 167         return VT_I4;
 168     case TYPE_BASIC_INT64:
 169     case TYPE_BASIC_HYPER:
 170       if (type_basic_get_sign(t) > 0)
 171         return VT_UI8;
 172       else
 173         return VT_I8;
 174     case TYPE_BASIC_INT3264:
 175       if (typelib_kind == SYS_WIN64)
 176       {
 177         if (type_basic_get_sign(t) > 0)
 178           return VT_UI8;
 179         else
 180           return VT_I8;
 181       }
 182       else
 183       {
 184         if (type_basic_get_sign(t) > 0)
 185           return VT_UI4;
 186         else
 187           return VT_I4;
 188       }
 189     case TYPE_BASIC_FLOAT:
 190       return VT_R4;
 191     case TYPE_BASIC_DOUBLE:
 192       return VT_R8;
 193     case TYPE_BASIC_HANDLE:
 194       error("handles can't be used in typelibs\n");
 195     }
 196     break;
 197
 198   case TYPE_POINTER:
 199     return VT_PTR;
 200
 201   case TYPE_ARRAY:
 202     if (type_array_is_decl_as_ptr(t))
 203     {
 204       if (match(type_array_get_element(t)->name, "SAFEARRAY"))
 205         return VT_SAFEARRAY;
 206     }
 207     else
 208       error("get_type_vt: array types not supported\n");
 209     return VT_PTR;
 210
 211   case TYPE_INTERFACE:
 212     if(match(t->name, "IUnknown"))
 213       return VT_UNKNOWN;
 214     if(match(t->name, "IDispatch"))
 215       return VT_DISPATCH;
 216     return VT_USERDEFINED;
 217
 218   case TYPE_ENUM:
 219   case TYPE_STRUCT:
 220   case TYPE_COCLASS:
 221   case TYPE_MODULE:
 222   case TYPE_UNION:
 223   case TYPE_ENCAPSULATED_UNION:
 224     return VT_USERDEFINED;
 225
 226   case TYPE_VOID:
 227     return VT_VOID;
 228
 229   case TYPE_ALIAS:
 230     /* aliases should be filtered out by the type_get_type call above */
 231     assert(0);
 232     break;
 233
 234   case TYPE_FUNCTION:
 235     error("get_type_vt: functions not supported\n");
 236     break;
 237
 238   case TYPE_BITFIELD:
 239     error("get_type_vt: bitfields not supported\n");
 240     break;
 241   }
 242   return 0;
 243 }
 244
 245 void start_typelib(typelib_t *typelib_type)
 246 {
 247     if (!do_typelib) return;
 248     typelib = typelib_type;
 249 }
 250
 251 void end_typelib(void)
 252 {
 253     if (!typelib) return;
 254
 255     create_msft_typelib(typelib);
 256 }
 257
 258 static void tlb_read(int fd, void *buf, int count)
 259 {
 260     if(read(fd, buf, count) < count)
 261         error("error while reading importlib.\n");
 262 }
 263
 264 static void tlb_lseek(int fd, off_t offset)
 265 {
 266     if(lseek(fd, offset, SEEK_SET) == -1)
 267         error("lseek failed\n");
 268 }
 269
 270 static void msft_read_guid(int fd, MSFT_SegDir *segdir, int offset, GUID *guid)
 271 {
 272     tlb_lseek(fd, segdir->pGuidTab.offset+offset);
 273     tlb_read(fd, guid, sizeof(GUID));
 274 }
 275
 276 static void read_msft_importlib(importlib_t *importlib, int fd)
 277 {
 278     MSFT_Header header;
 279     MSFT_SegDir segdir;
 280     int *typeinfo_offs;
 281     int i;
 282
 283     importlib->allocated = 0;
 284
 285     tlb_lseek(fd, 0);
 286     tlb_read(fd, &header, sizeof(header));
 287
 288     importlib->version = header.version;
 289
 290     typeinfo_offs = xmalloc(header.nrtypeinfos*sizeof(INT));
 291     tlb_read(fd, typeinfo_offs, header.nrtypeinfos*sizeof(INT));
 292     tlb_read(fd, &segdir, sizeof(segdir));
 293
 294     msft_read_guid(fd, &segdir, header.posguid, &importlib->guid);
 295
 296     importlib->ntypeinfos = header.nrtypeinfos;
 297     importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
 298
 299     for(i=0; i < importlib->ntypeinfos; i++) {
 300         MSFT_TypeInfoBase base;
 301         MSFT_NameIntro nameintro;
 302         int len;
 303
 304         tlb_lseek(fd, sizeof(MSFT_Header) + header.nrtypeinfos*sizeof(INT) + sizeof(MSFT_SegDir)
 305                  + typeinfo_offs[i]);
 306         tlb_read(fd, &base, sizeof(base));
 307
 308         importlib->importinfos[i].importlib = importlib;
 309         importlib->importinfos[i].flags = (base.typekind&0xf)<<24;
 310         importlib->importinfos[i].offset = -1;
 311         importlib->importinfos[i].id = i;
 312
 313         if(base.posguid != -1) {
 314             importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
 315             msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
 316         }
 317         else memset( &importlib->importinfos[i].guid, 0, sizeof(importlib->importinfos[i].guid));
 318
 319         tlb_lseek(fd, segdir.pNametab.offset + base.NameOffset);
 320         tlb_read(fd, &nameintro, sizeof(nameintro));
 321
 322         len = nameintro.namelen & 0xff;
 323
 324         importlib->importinfos[i].name = xmalloc(len+1);
 325         tlb_read(fd, importlib->importinfos[i].name, len);
 326         importlib->importinfos[i].name[len] = 0;
 327     }
 328
 329     free(typeinfo_offs);
 330 }
 331
 332 static void read_importlib(importlib_t *importlib)
 333 {
 334     int fd;
 335     INT magic;
 336     char *file_name;
 337
 338     file_name = wpp_find_include(importlib->name, NULL);
 339     if(file_name) {
 340         fd = open(file_name, O_RDONLY | O_BINARY );
 341         free(file_name);
 342     }else {
 343         fd = open(importlib->name, O_RDONLY | O_BINARY );
 344     }
 345
 346     if(fd < 0)
 347         error("Could not open importlib %s.\n", importlib->name);
 348
 349     tlb_read(fd, &magic, sizeof(magic));
 350
 351     switch(magic) {
 352     case MSFT_MAGIC:
 353         read_msft_importlib(importlib, fd);
 354         break;
 355     default:
 356         error("Wrong or unsupported typelib magic %x\n", magic);
 357     };
 358
 359     close(fd);
 360 }
 361
 362 void add_importlib(const char *name)
 363 {
 364     importlib_t *importlib;
 365
 366     if(!typelib) return;
 367
 368     LIST_FOR_EACH_ENTRY( importlib, &typelib->importlibs, importlib_t, entry )
 369         if(!strcmp(name, importlib->name))
 370             return;
 371
 372     chat("add_importlib: %s\n", name);
 373
 374     importlib = xmalloc(sizeof(*importlib));
 375     memset( importlib, 0, sizeof(*importlib) );
 376     importlib->name = xstrdup(name);
 377
 378     read_importlib(importlib);
 379     list_add_head( &typelib->importlibs, &importlib->entry );
 380 }