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 char *kw)
 130 {
 131   struct oatype key, *kwp;
 132   key.kw = kw;
 133 #ifdef KW_BSEARCH
 134   kwp = bsearch(&key, oatypes, NTYPES, sizeof(oatypes[0]), kw_cmp_func);
 135 #else
 136   {
 137     unsigned int i;
 138     for (kwp=NULL, i=0; i < NTYPES; i++)
 139       if (!kw_cmp_func(&key, &oatypes[i])) {
 140         kwp = &oatypes[i];
 141         break;
 142       }
 143   }
 144 #endif
 145   if (kwp) {
 146     return kwp->vt;
 147   }
 148   return 0;
 149 }
 150
 151 static int match(const char*n, const char*m)
 152 {
 153   if (!n) return 0;
 154   return !strcmp(n, m);
 155 }
 156
 157 unsigned short get_type_vt(type_t *t)
 158 {
 159   unsigned short vt;
 160
 161   chat("get_type_vt: %p type->name %s\n", t, t->name);
 162   if (t->name) {
 163     vt = builtin_vt(t->name);
 164     if (vt) return vt;
 165   }
 166
 167   if (t->kind == TKIND_ALIAS && t->attrs)
 168     return VT_USERDEFINED;
 169
 170   switch (t->type) {
 171   case RPC_FC_BYTE:
 172   case RPC_FC_USMALL:
 173     return VT_UI1;
 174   case RPC_FC_CHAR:
 175   case RPC_FC_SMALL:
 176     return VT_I1;
 177   case RPC_FC_WCHAR:
 178     return VT_I2; /* mktyplib seems to parse wchar_t as short */
 179   case RPC_FC_SHORT:
 180     return VT_I2;
 181   case RPC_FC_USHORT:
 182     return VT_UI2;
 183   case RPC_FC_LONG:
 184     if (match(t->name, "int")) return VT_INT;
 185     return VT_I4;
 186   case RPC_FC_ULONG:
 187     if (match(t->name, "int")) return VT_UINT;
 188     return VT_UI4;
 189   case RPC_FC_HYPER:
 190     if (t->sign < 0) return VT_UI8;
 191     if (match(t->name, "MIDL_uhyper")) return VT_UI8;
 192     return VT_I8;
 193   case RPC_FC_FLOAT:
 194     return VT_R4;
 195   case RPC_FC_DOUBLE:
 196     return VT_R8;
 197   case RPC_FC_RP:
 198   case RPC_FC_UP:
 199   case RPC_FC_OP:
 200   case RPC_FC_FP:
 201     if(t->ref)
 202     {
 203       if (match(t->ref->name, "SAFEARRAY"))
 204         return VT_SAFEARRAY;
 205       return VT_PTR;
 206     }
 207
 208     error("get_type_vt: unknown-deref-type: %d\n", t->ref->type);
 209     break;
 210   case RPC_FC_IP:
 211     if(match(t->name, "IUnknown"))
 212       return VT_UNKNOWN;
 213     if(match(t->name, "IDispatch"))
 214       return VT_DISPATCH;
 215     return VT_USERDEFINED;
 216
 217   case RPC_FC_ENUM16:
 218   case RPC_FC_STRUCT:
 219   case RPC_FC_PSTRUCT:
 220   case RPC_FC_CSTRUCT:
 221   case RPC_FC_CPSTRUCT:
 222   case RPC_FC_CVSTRUCT:
 223   case RPC_FC_BOGUS_STRUCT:
 224     return VT_USERDEFINED;
 225   case 0:
 226     return t->kind == TKIND_PRIMITIVE ? VT_VOID : VT_USERDEFINED;
 227   default:
 228     error("get_type_vt: unknown type: 0x%02x\n", t->type);
 229   }
 230   return 0;
 231 }
 232
 233 void start_typelib(char *name, attr_list_t *attrs)
 234 {
 235     in_typelib++;
 236     if (!do_typelib) return;
 237
 238     typelib = xmalloc(sizeof(*typelib));
 239     typelib->name = xstrdup(name);
 240     typelib->filename = xstrdup(typelib_name);
 241     typelib->attrs = attrs;
 242     list_init( &typelib->entries );
 243     list_init( &typelib->importlibs );
 244 }
 245
 246 void end_typelib(void)
 247 {
 248     in_typelib--;
 249     if (!typelib) return;
 250
 251     create_msft_typelib(typelib);
 252     return;
 253 }
 254
 255 void add_typelib_entry(type_t *t)
 256 {
 257     typelib_entry_t *entry;
 258     if (!typelib) return;
 259
 260     chat("add kind %i: %s\n", t->kind, t->name);
 261     entry = xmalloc(sizeof(*entry));
 262     entry->type = t;
 263     list_add_tail( &typelib->entries, &entry->entry );
 264 }
 265
 266 static void tlb_read(int fd, void *buf, int count)
 267 {
 268     if(read(fd, buf, count) < count)
 269         error("error while reading importlib.\n");
 270 }
 271
 272 static void tlb_lseek(int fd, off_t offset)
 273 {
 274     if(lseek(fd, offset, SEEK_SET) == -1)
 275         error("lseek failed\n");
 276 }
 277
 278 static void msft_read_guid(int fd, MSFT_SegDir *segdir, int offset, GUID *guid)
 279 {
 280     tlb_lseek(fd, segdir->pGuidTab.offset+offset);
 281     tlb_read(fd, guid, sizeof(GUID));
 282 }
 283
 284 static void read_msft_importlib(importlib_t *importlib, int fd)
 285 {
 286     MSFT_Header header;
 287     MSFT_SegDir segdir;
 288     int *typeinfo_offs;
 289     int i;
 290
 291     importlib->allocated = 0;
 292
 293     tlb_lseek(fd, 0);
 294     tlb_read(fd, &header, sizeof(header));
 295
 296     importlib->version = header.version;
 297
 298     typeinfo_offs = xmalloc(header.nrtypeinfos*sizeof(INT));
 299     tlb_read(fd, typeinfo_offs, header.nrtypeinfos*sizeof(INT));
 300     tlb_read(fd, &segdir, sizeof(segdir));
 301
 302     msft_read_guid(fd, &segdir, header.posguid, &importlib->guid);
 303
 304     importlib->ntypeinfos = header.nrtypeinfos;
 305     importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
 306
 307     for(i=0; i < importlib->ntypeinfos; i++) {
 308         MSFT_TypeInfoBase base;
 309         MSFT_NameIntro nameintro;
 310         int len;
 311
 312         tlb_lseek(fd, sizeof(MSFT_Header) + header.nrtypeinfos*sizeof(INT) + sizeof(MSFT_SegDir)
 313                  + typeinfo_offs[i]);
 314         tlb_read(fd, &base, sizeof(base));
 315
 316         importlib->importinfos[i].importlib = importlib;
 317         importlib->importinfos[i].flags = (base.typekind&0xf)<<24;
 318         importlib->importinfos[i].offset = -1;
 319         importlib->importinfos[i].id = i;
 320
 321         if(base.posguid != -1) {
 322             importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
 323             msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
 324         }
 325         else memset( &importlib->importinfos[i].guid, 0, sizeof(importlib->importinfos[i].guid));
 326
 327         tlb_lseek(fd, segdir.pNametab.offset + base.NameOffset);
 328         tlb_read(fd, &nameintro, sizeof(nameintro));
 329
 330         len = nameintro.namelen & 0xff;
 331
 332         importlib->importinfos[i].name = xmalloc(len+1);
 333         tlb_read(fd, importlib->importinfos[i].name, len);
 334         importlib->importinfos[i].name[len] = 0;
 335     }
 336
 337     free(typeinfo_offs);
 338 }
 339
 340 static void read_importlib(importlib_t *importlib)
 341 {
 342     int fd;
 343     INT magic;
 344     char *file_name;
 345
 346     file_name = wpp_find_include(importlib->name, NULL);
 347     if(file_name) {
 348         fd = open(file_name, O_RDONLY);
 349         free(file_name);
 350     }else {
 351         fd = open(importlib->name, O_RDONLY);
 352     }
 353
 354     if(fd < 0)
 355         error("Could not open importlib %s.\n", importlib->name);
 356
 357     tlb_read(fd, &magic, sizeof(magic));
 358
 359     switch(magic) {
 360     case MSFT_MAGIC:
 361         read_msft_importlib(importlib, fd);
 362         break;
 363     default:
 364         error("Wrong or unsupported typelib magic %x\n", magic);
 365     };
 366
 367     close(fd);
 368 }
 369
 370 void add_importlib(const char *name)
 371 {
 372     importlib_t *importlib;
 373
 374     if(!typelib) return;
 375
 376     LIST_FOR_EACH_ENTRY( importlib, &typelib->importlibs, importlib_t, entry )
 377         if(!strcmp(name, importlib->name))
 378             return;
 379
 380     chat("add_importlib: %s\n", name);
 381
 382     importlib = xmalloc(sizeof(*importlib));
 383     memset( importlib, 0, sizeof(*importlib) );
 384     importlib->name = xstrdup(name);
 385
 386     read_importlib(importlib);
 387     list_add_head( &typelib->importlibs, &importlib->entry );
 388 }