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
  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 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 && t->attrs)
 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     return VT_USERDEFINED;
 236   case 0:
 237     return t->kind == TKIND_PRIMITIVE ? VT_VOID : VT_USERDEFINED;
 238   default:
 239     error("get_type_vt: unknown type: 0x%02x\n", t->type);
 240   }
 241   return 0;
 242 }
 243
 244 void start_typelib(char *name, attr_list_t *attrs)
 245 {
 246     in_typelib++;
 247     if (!do_typelib) return;
 248
 249     typelib = xmalloc(sizeof(*typelib));
 250     typelib->name = xstrdup(name);
 251     typelib->filename = xstrdup(typelib_name);
 252     typelib->attrs = attrs;
 253     list_init( &typelib->entries );
 254     list_init( &typelib->importlibs );
 255
 256     if (is_attr(attrs, ATTR_POINTERDEFAULT))
 257         pointer_default = get_attrv(attrs, ATTR_POINTERDEFAULT);
 258 }
 259
 260 void end_typelib(void)
 261 {
 262     in_typelib--;
 263     if (!typelib) return;
 264
 265     create_msft_typelib(typelib);
 266     pointer_default = RPC_FC_UP;
 267     return;
 268 }
 269
 270 void add_typelib_entry(type_t *t)
 271 {
 272     typelib_entry_t *entry;
 273     if (!typelib) return;
 274
 275     chat("add kind %i: %s\n", t->kind, t->name);
 276     entry = xmalloc(sizeof(*entry));
 277     entry->type = t;
 278     list_add_tail( &typelib->entries, &entry->entry );
 279 }
 280
 281 static void tlb_read(int fd, void *buf, int count)
 282 {
 283     if(read(fd, buf, count) < count)
 284         error("error while reading importlib.\n");
 285 }
 286
 287 static void tlb_lseek(int fd, off_t offset)
 288 {
 289     if(lseek(fd, offset, SEEK_SET) == -1)
 290         error("lseek failed\n");
 291 }
 292
 293 static void msft_read_guid(int fd, MSFT_SegDir *segdir, int offset, GUID *guid)
 294 {
 295     tlb_lseek(fd, segdir->pGuidTab.offset+offset);
 296     tlb_read(fd, guid, sizeof(GUID));
 297 }
 298
 299 static void read_msft_importlib(importlib_t *importlib, int fd)
 300 {
 301     MSFT_Header header;
 302     MSFT_SegDir segdir;
 303     int *typeinfo_offs;
 304     int i;
 305
 306     importlib->allocated = 0;
 307
 308     tlb_lseek(fd, 0);
 309     tlb_read(fd, &header, sizeof(header));
 310
 311     importlib->version = header.version;
 312
 313     typeinfo_offs = xmalloc(header.nrtypeinfos*sizeof(INT));
 314     tlb_read(fd, typeinfo_offs, header.nrtypeinfos*sizeof(INT));
 315     tlb_read(fd, &segdir, sizeof(segdir));
 316
 317     msft_read_guid(fd, &segdir, header.posguid, &importlib->guid);
 318
 319     importlib->ntypeinfos = header.nrtypeinfos;
 320     importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
 321
 322     for(i=0; i < importlib->ntypeinfos; i++) {
 323         MSFT_TypeInfoBase base;
 324         MSFT_NameIntro nameintro;
 325         int len;
 326
 327         tlb_lseek(fd, sizeof(MSFT_Header) + header.nrtypeinfos*sizeof(INT) + sizeof(MSFT_SegDir)
 328                  + typeinfo_offs[i]);
 329         tlb_read(fd, &base, sizeof(base));
 330
 331         importlib->importinfos[i].importlib = importlib;
 332         importlib->importinfos[i].flags = (base.typekind&0xf)<<24;
 333         importlib->importinfos[i].offset = -1;
 334         importlib->importinfos[i].id = i;
 335
 336         if(base.posguid != -1) {
 337             importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
 338             msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
 339         }
 340         else memset( &importlib->importinfos[i].guid, 0, sizeof(importlib->importinfos[i].guid));
 341
 342         tlb_lseek(fd, segdir.pNametab.offset + base.NameOffset);
 343         tlb_read(fd, &nameintro, sizeof(nameintro));
 344
 345         len = nameintro.namelen & 0xff;
 346
 347         importlib->importinfos[i].name = xmalloc(len+1);
 348         tlb_read(fd, importlib->importinfos[i].name, len);
 349         importlib->importinfos[i].name[len] = 0;
 350     }
 351
 352     free(typeinfo_offs);
 353 }
 354
 355 static void read_importlib(importlib_t *importlib)
 356 {
 357     int fd;
 358     INT magic;
 359     char *file_name;
 360
 361     file_name = wpp_find_include(importlib->name, NULL);
 362     if(file_name) {
 363         fd = open(file_name, O_RDONLY);
 364         free(file_name);
 365     }else {
 366         fd = open(importlib->name, O_RDONLY);
 367     }
 368
 369     if(fd < 0)
 370         error("Could not open importlib %s.\n", importlib->name);
 371
 372     tlb_read(fd, &magic, sizeof(magic));
 373
 374     switch(magic) {
 375     case MSFT_MAGIC:
 376         read_msft_importlib(importlib, fd);
 377         break;
 378     default:
 379         error("Wrong or unsupported typelib magic %x\n", magic);
 380     };
 381
 382     close(fd);
 383 }
 384
 385 void add_importlib(const char *name)
 386 {
 387     importlib_t *importlib;
 388
 389     if(!typelib) return;
 390
 391     LIST_FOR_EACH_ENTRY( importlib, &typelib->importlibs, importlib_t, entry )
 392         if(!strcmp(name, importlib->name))
 393             return;
 394
 395     chat("add_importlib: %s\n", name);
 396
 397     importlib = xmalloc(sizeof(*importlib));
 398     memset( importlib, 0, sizeof(*importlib) );
 399     importlib->name = xstrdup(name);
 400
 401     read_importlib(importlib);
 402     list_add_head( &typelib->importlibs, &importlib->entry );
 403 }