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
  49 int in_typelib = 0;
  50
  51 static typelib_t *typelib;
  52
  53 type_t *duptype(type_t *t, int dupname)
  54 {
  55   type_t *d = alloc_type();
  56
  57   *d = *t;
  58   if (dupname && t->name)
  59     d->name = xstrdup(t->name);
  60
  61   d->orig = t;
  62   return d;
  63 }
  64
  65 type_t *alias(type_t *t, const char *name)
  66 {
  67   type_t *a = duptype(t, 0);
  68
  69   a->name = xstrdup(name);
  70   a->kind = TKIND_ALIAS;
  71   a->attrs = NULL;
  72   a->declarray = FALSE;
  73   init_loc_info(&a->loc_info);
  74
  75   return a;
  76 }
  77
  78 int is_ptr(const type_t *t)
  79 {
  80   unsigned char c = t->type;
  81   return c == RPC_FC_RP
  82       || c == RPC_FC_UP
  83       || c == RPC_FC_FP
  84       || c == RPC_FC_OP;
  85 }
  86
  87 int is_array(const type_t *t)
  88 {
  89     switch (t->type)
  90     {
  91     case RPC_FC_SMFARRAY:
  92     case RPC_FC_LGFARRAY:
  93     case RPC_FC_SMVARRAY:
  94     case RPC_FC_LGVARRAY:
  95     case RPC_FC_CARRAY:
  96     case RPC_FC_CVARRAY:
  97     case RPC_FC_BOGUS_ARRAY:
  98         return TRUE;
  99     default:
 100         return FALSE;
 101     }
 102 }
 103
 104 /* List of oleauto types that should be recognized by name.
 105  * (most of) these seem to be intrinsic types in mktyplib.
 106  * This table MUST be alphabetically sorted on the kw field.
 107  */
 108 static const struct oatype {
 109   const char *kw;
 110   unsigned short vt;
 111 } oatypes[] = {
 112   {"BSTR",          VT_BSTR},
 113   {"CURRENCY",      VT_CY},
 114   {"DATE",          VT_DATE},
 115   {"DECIMAL",       VT_DECIMAL},
 116   {"HRESULT",       VT_HRESULT},
 117   {"LPSTR",         VT_LPSTR},
 118   {"LPWSTR",        VT_LPWSTR},
 119   {"SCODE",         VT_ERROR},
 120   {"VARIANT",       VT_VARIANT},
 121   {"VARIANT_BOOL",  VT_BOOL}
 122 };
 123 #define NTYPES (sizeof(oatypes)/sizeof(oatypes[0]))
 124 #define KWP(p) ((const struct oatype *)(p))
 125
 126 static int kw_cmp_func(const void *s1, const void *s2)
 127 {
 128         return strcmp(KWP(s1)->kw, KWP(s2)->kw);
 129 }
 130
 131 static unsigned short builtin_vt(const type_t *t)
 132 {
 133   const char *kw = t->name;
 134   struct oatype key;
 135   const struct oatype *kwp;
 136   key.kw = kw;
 137 #ifdef KW_BSEARCH
 138   kwp = bsearch(&key, oatypes, NTYPES, sizeof(oatypes[0]), kw_cmp_func);
 139 #else
 140   {
 141     unsigned int i;
 142     for (kwp=NULL, i=0; i < NTYPES; i++)
 143       if (!kw_cmp_func(&key, &oatypes[i])) {
 144         kwp = &oatypes[i];
 145         break;
 146       }
 147   }
 148 #endif
 149   if (kwp) {
 150     return kwp->vt;
 151   }
 152   if (is_string_type (t->attrs, t))
 153     switch (t->ref->type)
 154       {
 155       case RPC_FC_CHAR: return VT_LPSTR;
 156       case RPC_FC_WCHAR: return VT_LPWSTR;
 157       default: break;
 158       }
 159   return 0;
 160 }
 161
 162 static int match(const char*n, const char*m)
 163 {
 164   if (!n) return 0;
 165   return !strcmp(n, m);
 166 }
 167
 168 unsigned short get_type_vt(type_t *t)
 169 {
 170   unsigned short vt;
 171
 172   chat("get_type_vt: %p type->name %s\n", t, t->name);
 173   if (t->name) {
 174     vt = builtin_vt(t);
 175     if (vt) return vt;
 176   }
 177
 178   if (t->kind == TKIND_ALIAS && is_attr(t->attrs, ATTR_PUBLIC))
 179     return VT_USERDEFINED;
 180
 181   switch (t->type) {
 182   case RPC_FC_BYTE:
 183   case RPC_FC_USMALL:
 184     return VT_UI1;
 185   case RPC_FC_CHAR:
 186   case RPC_FC_SMALL:
 187     return VT_I1;
 188   case RPC_FC_WCHAR:
 189     return VT_I2; /* mktyplib seems to parse wchar_t as short */
 190   case RPC_FC_SHORT:
 191     return VT_I2;
 192   case RPC_FC_USHORT:
 193     return VT_UI2;
 194   case RPC_FC_LONG:
 195     if (match(t->name, "int")) return VT_INT;
 196     return VT_I4;
 197   case RPC_FC_ULONG:
 198     if (match(t->name, "int")) return VT_UINT;
 199     return VT_UI4;
 200   case RPC_FC_HYPER:
 201     if (t->sign < 0) return VT_UI8;
 202     if (match(t->name, "MIDL_uhyper")) return VT_UI8;
 203     return VT_I8;
 204   case RPC_FC_FLOAT:
 205     return VT_R4;
 206   case RPC_FC_DOUBLE:
 207     return VT_R8;
 208   case RPC_FC_RP:
 209   case RPC_FC_UP:
 210   case RPC_FC_OP:
 211   case RPC_FC_FP:
 212   case RPC_FC_CARRAY:
 213   case RPC_FC_CVARRAY:
 214     if(t->ref)
 215     {
 216       if (match(t->ref->name, "SAFEARRAY"))
 217         return VT_SAFEARRAY;
 218       return VT_PTR;
 219     }
 220
 221     error("get_type_vt: unknown-deref-type: %d\n", t->ref->type);
 222     break;
 223   case RPC_FC_IP:
 224     if(match(t->name, "IUnknown"))
 225       return VT_UNKNOWN;
 226     if(match(t->name, "IDispatch"))
 227       return VT_DISPATCH;
 228     return VT_USERDEFINED;
 229
 230   case RPC_FC_ENUM16:
 231   case RPC_FC_STRUCT:
 232   case RPC_FC_PSTRUCT:
 233   case RPC_FC_CSTRUCT:
 234   case RPC_FC_CPSTRUCT:
 235   case RPC_FC_CVSTRUCT:
 236   case RPC_FC_BOGUS_STRUCT:
 237   case RPC_FC_COCLASS:
 238     return VT_USERDEFINED;
 239   case 0:
 240     return t->kind == TKIND_PRIMITIVE ? VT_VOID : VT_USERDEFINED;
 241   default:
 242     error("get_type_vt: unknown type: 0x%02x\n", t->type);
 243   }
 244   return 0;
 245 }
 246
 247 void start_typelib(typelib_t *typelib_type)
 248 {
 249     in_typelib++;
 250     if (!do_typelib) return;
 251
 252     typelib = typelib_type;
 253     typelib->filename = xstrdup(typelib_name);
 254 }
 255
 256 void end_typelib(void)
 257 {
 258     in_typelib--;
 259     if (!typelib) return;
 260
 261     create_msft_typelib(typelib);
 262 }
 263
 264 void add_typelib_entry(type_t *t)
 265 {
 266     typelib_entry_t *entry;
 267     if (!typelib) return;
 268
 269     chat("add kind %i: %s\n", t->kind, t->name);
 270     entry = xmalloc(sizeof(*entry));
 271     entry->type = t;
 272     list_add_tail( &typelib->entries, &entry->entry );
 273 }
 274
 275 static void tlb_read(int fd, void *buf, int count)
 276 {
 277     if(read(fd, buf, count) < count)
 278         error("error while reading importlib.\n");
 279 }
 280
 281 static void tlb_lseek(int fd, off_t offset)
 282 {
 283     if(lseek(fd, offset, SEEK_SET) == -1)
 284         error("lseek failed\n");
 285 }
 286
 287 static void msft_read_guid(int fd, MSFT_SegDir *segdir, int offset, GUID *guid)
 288 {
 289     tlb_lseek(fd, segdir->pGuidTab.offset+offset);
 290     tlb_read(fd, guid, sizeof(GUID));
 291 }
 292
 293 static void read_msft_importlib(importlib_t *importlib, int fd)
 294 {
 295     MSFT_Header header;
 296     MSFT_SegDir segdir;
 297     int *typeinfo_offs;
 298     int i;
 299
 300     importlib->allocated = 0;
 301
 302     tlb_lseek(fd, 0);
 303     tlb_read(fd, &header, sizeof(header));
 304
 305     importlib->version = header.version;
 306
 307     typeinfo_offs = xmalloc(header.nrtypeinfos*sizeof(INT));
 308     tlb_read(fd, typeinfo_offs, header.nrtypeinfos*sizeof(INT));
 309     tlb_read(fd, &segdir, sizeof(segdir));
 310
 311     msft_read_guid(fd, &segdir, header.posguid, &importlib->guid);
 312
 313     importlib->ntypeinfos = header.nrtypeinfos;
 314     importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
 315
 316     for(i=0; i < importlib->ntypeinfos; i++) {
 317         MSFT_TypeInfoBase base;
 318         MSFT_NameIntro nameintro;
 319         int len;
 320
 321         tlb_lseek(fd, sizeof(MSFT_Header) + header.nrtypeinfos*sizeof(INT) + sizeof(MSFT_SegDir)
 322                  + typeinfo_offs[i]);
 323         tlb_read(fd, &base, sizeof(base));
 324
 325         importlib->importinfos[i].importlib = importlib;
 326         importlib->importinfos[i].flags = (base.typekind&0xf)<<24;
 327         importlib->importinfos[i].offset = -1;
 328         importlib->importinfos[i].id = i;
 329
 330         if(base.posguid != -1) {
 331             importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
 332             msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
 333         }
 334         else memset( &importlib->importinfos[i].guid, 0, sizeof(importlib->importinfos[i].guid));
 335
 336         tlb_lseek(fd, segdir.pNametab.offset + base.NameOffset);
 337         tlb_read(fd, &nameintro, sizeof(nameintro));
 338
 339         len = nameintro.namelen & 0xff;
 340
 341         importlib->importinfos[i].name = xmalloc(len+1);
 342         tlb_read(fd, importlib->importinfos[i].name, len);
 343         importlib->importinfos[i].name[len] = 0;
 344     }
 345
 346     free(typeinfo_offs);
 347 }
 348
 349 static void read_importlib(importlib_t *importlib)
 350 {
 351     int fd;
 352     INT magic;
 353     char *file_name;
 354
 355     file_name = wpp_find_include(importlib->name, NULL);
 356     if(file_name) {
 357         fd = open(file_name, O_RDONLY);
 358         free(file_name);
 359     }else {
 360         fd = open(importlib->name, O_RDONLY);
 361     }
 362
 363     if(fd < 0)
 364         error("Could not open importlib %s.\n", importlib->name);
 365
 366     tlb_read(fd, &magic, sizeof(magic));
 367
 368     switch(magic) {
 369     case MSFT_MAGIC:
 370         read_msft_importlib(importlib, fd);
 371         break;
 372     default:
 373         error("Wrong or unsupported typelib magic %x\n", magic);
 374     };
 375
 376     close(fd);
 377 }
 378
 379 void add_importlib(const char *name)
 380 {
 381     importlib_t *importlib;
 382
 383     if(!typelib) return;
 384
 385     LIST_FOR_EACH_ENTRY( importlib, &typelib->importlibs, importlib_t, entry )
 386         if(!strcmp(name, importlib->name))
 387             return;
 388
 389     chat("add_importlib: %s\n", name);
 390
 391     importlib = xmalloc(sizeof(*importlib));
 392     memset( importlib, 0, sizeof(*importlib) );
 393     importlib->name = xstrdup(name);
 394
 395     read_importlib(importlib);
 396     list_add_head( &typelib->importlibs, &importlib->entry );
 397 }