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