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