reactos/tools/wrc/readres.c

   1 /*
   2  * Read a .res file and create a resource-tree
   3  *
   4  * Copyright 1998 Bertho A. Stultiens
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <assert.h>
  27
  28 #include "wrc.h"
  29 #include "readres.h"
  30 #include "newstruc.h"
  31 #include "utils.h"
  32 #include "genres.h"
  33
  34 struct resheader32 {
  35         DWORD   ressize;        /* 0 */
  36         DWORD   hdrsize;        /* 0x20 */
  37         WORD    restype1;       /* 0xffff */
  38         WORD    restype2;       /* 0 */
  39         WORD    resname1;       /* 0xffff */
  40         WORD    resname2;       /* 0 */
  41         DWORD   dversion;       /* 0 */
  42         WORD    memopt;         /* 0 */
  43         WORD    language;       /* 0 */
  44         DWORD   version;        /* 0 */
  45         DWORD   characts;       /* 0 */
  46 } emptyheader           = {0, 0x20, 0xffff, 0, 0xffff, 0, 0, 0, 0, 0, 0},
  47   emptyheaderSWAPPED    = {0, BYTESWAP_DWORD(0x20), 0xffff, 0, 0xffff, 0, 0, 0, 0, 0, 0};
  48
  49 /*
  50  *****************************************************************************
  51  * Function     :
  52  * Syntax       :
  53  * Input        :
  54  * Output       :
  55  * Description  :
  56  * Remarks      :
  57  *****************************************************************************
  58 */
  59 /*
  60  *****************************************************************************
  61  * Function     :
  62  * Syntax       :
  63  * Input        :
  64  * Output       :
  65  * Description  :
  66  * Remarks      :
  67  *****************************************************************************
  68 */
  69 /*
  70  *****************************************************************************
  71  * Function     :
  72  * Syntax       :
  73  * Input        :
  74  * Output       :
  75  * Description  :
  76  * Remarks      :
  77  *****************************************************************************
  78 */
  79 static int read_data(FILE *fp, size_t size, void *buf)
  80 {
  81         unsigned int r;
  82         int pos = ftell(fp);
  83         r = fread(buf, 1, size, fp);
  84         if(r == size)
  85                 return 0;
  86         if(r == 0 && ftell(fp) - pos > 0)
  87                 return 1;
  88         else
  89                 return -1;
  90 }
  91
  92 /*
  93  *****************************************************************************
  94  * Function     :
  95  * Syntax       :
  96  * Input        :
  97  * Output       :
  98  * Description  :
  99  * Remarks      :
 100  *****************************************************************************
 101 */
 102 static enum res_e res_type_from_id(const name_id_t *nid)
 103 {
 104         if(nid->type == name_str)
 105                 return res_usr;
 106
 107         if(nid->type != name_ord)
 108                 internal_error(__FILE__, __LINE__, "Invalid name_id descriptor %d", nid->type);
 109
 110         switch(nid->name.i_name)
 111         {
 112         case WRC_RT_CURSOR:             return res_cur;
 113         case WRC_RT_BITMAP:             return res_bmp;
 114         case WRC_RT_ICON:               return res_ico;
 115         case WRC_RT_MENU:               return res_men;
 116         case WRC_RT_DIALOG:             return res_dlg;
 117         case WRC_RT_STRING:             return res_stt;
 118         case WRC_RT_FONTDIR:            return res_fntdir;
 119         case WRC_RT_FONT:               return res_fnt;
 120         case WRC_RT_ACCELERATOR:        return res_acc;
 121         case WRC_RT_RCDATA:             return res_rdt;
 122         case WRC_RT_MESSAGETABLE:       return res_msg;
 123         case WRC_RT_GROUP_CURSOR:       return res_curg;
 124         case WRC_RT_GROUP_ICON:         return res_icog;
 125         case WRC_RT_VERSION:            return res_ver;
 126         case WRC_RT_TOOLBAR:            return res_toolbar;
 127
 128         default:
 129         case WRC_RT_DLGINCLUDE:
 130         case WRC_RT_PLUGPLAY:
 131         case WRC_RT_VXD:
 132         case WRC_RT_ANICURSOR:
 133         case WRC_RT_ANIICON:
 134                 warning("Cannot be sure of resource type, using usertype settings");
 135                 return res_usr;
 136         }
 137 }
 138
 139 /*
 140  *****************************************************************************
 141  * Function     :
 142  * Syntax       :
 143  * Input        :
 144  * Output       :
 145  * Description  :
 146  * Remarks      :
 147  *****************************************************************************
 148 */
 149 #define get_word(idx)   (*((WORD *)(&res->data[idx])))
 150 #define get_dword(idx)  (*((DWORD *)(&res->data[idx])))
 151
 152 static resource_t *read_res32(FILE *fp)
 153 {
 154         static const char wrong_format[] = "Wrong resfile format (32bit)";
 155         DWORD ressize;
 156         DWORD hdrsize;
 157         DWORD totsize;
 158         WORD memopt;
 159         WORD language;
 160         int err;
 161         res_t *res;
 162         resource_t *rsc;
 163         resource_t *tail = NULL;
 164         resource_t *list = NULL;
 165         name_id_t *type = NULL;
 166         name_id_t *name = NULL;
 167         int idx;
 168         enum res_e res_type;
 169         user_t *usrres;
 170
 171         while(1)
 172         {
 173                 /* Get headersize and resource size */
 174                 err = read_data(fp, sizeof(ressize), &ressize);
 175                 if(err < 0)
 176                         break;
 177                 else if(err > 0)
 178                         error(wrong_format);
 179                 err = read_data(fp, sizeof(hdrsize), &hdrsize);
 180                 if(err)
 181                         error(wrong_format);
 182
 183                 /* Align sizes and compute total size */
 184                 totsize = hdrsize;
 185                 if(hdrsize & 3)
 186                 {
 187                         warning("Hu? .res header needed alignment (anything can happen now)");
 188                         totsize += 4 - (hdrsize & 3);
 189                 }
 190                 totsize += ressize;
 191                 if(ressize & 3)
 192                         totsize += 4 - (ressize & 3);
 193
 194                 /* Read in entire data-block */
 195                 fseek(fp, -8, SEEK_CUR);
 196                 res = new_res();
 197                 if(res->allocsize < totsize)
 198                         grow_res(res, totsize - res->allocsize + 8);
 199                 err = read_data(fp, totsize, res->data);
 200                 if(err)
 201                         error(wrong_format);
 202
 203                 res->dataidx = hdrsize;
 204                 res->size = hdrsize + ressize;
 205
 206                 /* Analyse the content of the header */
 207                 idx = 8;
 208                 /* Get restype */
 209                 if(get_word(idx) == 0xffff)
 210                 {
 211                         idx += sizeof(WORD);
 212                         type = new_name_id();
 213                         type->type = name_ord;
 214                         type->name.i_name = get_word(idx);
 215                         idx += sizeof(WORD);
 216                 }
 217                 else if(get_word(idx) == 0)
 218                 {
 219                         error("ResType name has zero length (32 bit)");
 220                 }
 221                 else
 222                 {
 223                         int tag = idx;
 224                         string_t *str;
 225                         while(1)
 226                         {
 227                                 idx += sizeof(WORD);
 228                                 if(!get_word(idx))
 229                                         break;
 230                         }
 231                         idx += sizeof(WORD);
 232                         str = new_string();
 233                         str->type = str_unicode;
 234                         str->size = (idx - tag) / 2;
 235                         str->str.wstr = (WCHAR *)xmalloc(idx-tag+2);
 236                         memcpy(str->str.wstr, &res->data[tag], idx-tag);
 237                         str->str.wstr[str->size] = 0;
 238                         type = new_name_id();
 239                         type->type = name_str;
 240                         type->name.s_name = str;
 241                 }
 242                 /* Get resname */
 243                 if(get_word(idx) == 0xffff)
 244                 {
 245                         idx += sizeof(WORD);
 246                         name = new_name_id();
 247                         name->type = name_ord;
 248                         name->name.i_name = get_word(idx);
 249                         idx += sizeof(WORD);
 250                 }
 251                 else if(get_word(idx) == 0)
 252                 {
 253                         error("ResName name has zero length (32 bit)");
 254                 }
 255                 else
 256                 {
 257                         int tag = idx;
 258                         string_t *str;
 259                         while(1)
 260                         {
 261                                 idx += sizeof(WORD);
 262                                 if(!get_word(idx))
 263                                         break;
 264                         }
 265                         idx += sizeof(WORD);
 266                         str = new_string();
 267                         str->type = str_unicode;
 268                         str->size = (idx - tag) / 2;
 269                         str->str.wstr = (WCHAR *)xmalloc(idx-tag+2);
 270                         memcpy(str->str.wstr, &res->data[tag], idx-tag);
 271                         str->str.wstr[str->size] = 0;
 272                         name = new_name_id();
 273                         name->type = name_str;
 274                         name->name.s_name = str;
 275                 }
 276
 277                 /* align */
 278                 if(idx & 0x3)
 279                         idx += 4 - (idx & 3);
 280
 281                 idx += sizeof(DWORD);   /* Skip DataVersion */
 282                 memopt = get_word(idx);
 283                 idx += sizeof(WORD);
 284                 language = get_word(idx);
 285
 286                 /* Build a resource_t list */
 287                 res_type = res_type_from_id(type);
 288                 if(res_type == res_usr)
 289                 {
 290                         /* User-type has custom ResType for .[s|h] generation */
 291                         usrres = new_user(type, NULL, new_int(memopt));
 292                 }
 293                 else
 294                         usrres = NULL;
 295                 rsc = new_resource(res_type,
 296                                    usrres,
 297                                    memopt,
 298                                    new_language(PRIMARYLANGID(language),
 299                                                 SUBLANGID(language)));
 300                 rsc->binres = res;
 301                 rsc->name = name;
 302                 rsc->c_name = make_c_name(get_c_typename(res_type), name, rsc->lan);
 303                 if(!list)
 304                 {
 305                         list = rsc;
 306                         tail = rsc;
 307                 }
 308                 else
 309                 {
 310                         rsc->prev = tail;
 311                         tail->next = rsc;
 312                         tail = rsc;
 313                 }
 314         }
 315         return list;
 316 }
 317
 318 /*
 319  *****************************************************************************
 320  * Function     :
 321  * Syntax       :
 322  * Input        :
 323  * Output       :
 324  * Description  :
 325  * Remarks      :
 326  *****************************************************************************
 327 */
 328 static resource_t *read_res16(FILE *fp)
 329 {
 330         internal_error(__FILE__, __LINE__, "Can't yet read 16 bit .res files");
 331         return NULL;
 332 }
 333
 334 /*
 335  *****************************************************************************
 336  * Function     : read_resfile
 337  * Syntax       : resource_t *read_resfile(char *inname)
 338  * Input        :
 339  * Output       :
 340  * Description  :
 341  * Remarks      :
 342  *****************************************************************************
 343 */
 344 resource_t *read_resfile(char *inname)
 345 {
 346         FILE *fp;
 347         struct resheader32 rh;
 348         int is32bit = 1;
 349         resource_t *top;
 350
 351         fp = fopen(inname, "rb");
 352         if(!fp)
 353                 error("Could not open inputfile %s", inname);
 354
 355         /* Determine 16 or 32 bit .res file */
 356         if(fread(&rh, 1, sizeof(rh), fp) != sizeof(rh))
 357                 is32bit = 0;
 358         else
 359         {
 360                 if(!memcmp(&emptyheader, &rh, sizeof(rh)))
 361                         is32bit = 1;
 362                 else if(!memcmp(&emptyheaderSWAPPED, &rh, sizeof(rh)))
 363                         error("Binary .res-file has its byteorder swapped");
 364                 else
 365                         is32bit = 0;
 366         }
 367
 368         if(is32bit && !win32)
 369                 error("Cannot convert 32-bit .res-file into 16-bit resources (and will, hopefully never, implement it)");
 370
 371         if(!is32bit && win32)
 372                 error("Cannot (yet) convert 16-bit .res-file into 32-bit resources");
 373
 374         if(!is32bit)
 375         {
 376                 fseek(fp, 0, SEEK_SET);
 377                 top = read_res16(fp);
 378         }
 379         else
 380         {
 381                 top = read_res32(fp);
 382         }
 383
 384         fclose(fp);
 385
 386         return top;
 387 }