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