| 1 | /* resres.c: read_res_file and write_res_file implementation for windres. |
| 2 | Copyright (C) 1998-2018 Free Software Foundation, Inc. |
| 3 | Written by Anders Norlander <anorland@hem2.passagen.se>. |
| 4 | Rewritten by Kai Tietz, Onevision. |
| 5 | |
| 6 | This file is part of GNU Binutils. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 21 | 02110-1301, USA. */ |
| 22 | |
| 23 | /* FIXME: This file does not work correctly in a cross configuration. |
| 24 | It assumes that it can use fread and fwrite to read and write |
| 25 | integers. It does no swapping. */ |
| 26 | |
| 27 | #include "sysdep.h" |
| 28 | #include "bfd.h" |
| 29 | #include "bucomm.h" |
| 30 | #include "libiberty.h" |
| 31 | #include "windres.h" |
| 32 | |
| 33 | #include <assert.h> |
| 34 | |
| 35 | static rc_uint_type write_res_directory (windres_bfd *, rc_uint_type, |
| 36 | const rc_res_directory *, const rc_res_id *, |
| 37 | const rc_res_id *, rc_uint_type *, int); |
| 38 | static rc_uint_type write_res_resource (windres_bfd *, rc_uint_type,const rc_res_id *, |
| 39 | const rc_res_id *, const rc_res_resource *, |
| 40 | rc_uint_type *); |
| 41 | static rc_uint_type write_res_bin (windres_bfd *, rc_uint_type, const rc_res_resource *, |
| 42 | const rc_res_id *, const rc_res_id *, |
| 43 | const rc_res_res_info *); |
| 44 | |
| 45 | static rc_uint_type write_res_id (windres_bfd *, rc_uint_type, const rc_res_id *); |
| 46 | static rc_uint_type write_res_info (windres_bfd *, rc_uint_type, const rc_res_res_info *); |
| 47 | static rc_uint_type write_res_data_hdr (windres_bfd *, rc_uint_type, res_hdr *); |
| 48 | |
| 49 | static rc_uint_type write_res_header (windres_bfd *, rc_uint_type, rc_uint_type, |
| 50 | const rc_res_id *, const rc_res_id *, |
| 51 | const rc_res_res_info *); |
| 52 | |
| 53 | static int read_resource_entry (windres_bfd *, rc_uint_type *, rc_uint_type); |
| 54 | static void read_res_data (windres_bfd *, rc_uint_type *, rc_uint_type, void *, |
| 55 | rc_uint_type); |
| 56 | static void read_res_data_hdr (windres_bfd *, rc_uint_type *, rc_uint_type, res_hdr *); |
| 57 | static void read_res_id (windres_bfd *, rc_uint_type *, rc_uint_type, rc_res_id *); |
| 58 | static unichar *read_unistring (windres_bfd *, rc_uint_type *, rc_uint_type, rc_uint_type *); |
| 59 | static void skip_null_resource (windres_bfd *, rc_uint_type *, rc_uint_type); |
| 60 | static int probe_binary (windres_bfd *wrbfd, rc_uint_type); |
| 61 | |
| 62 | static unsigned long get_id_size (const rc_res_id *); |
| 63 | |
| 64 | static void res_add_resource (rc_res_resource *, const rc_res_id *, |
| 65 | const rc_res_id *, rc_uint_type, int); |
| 66 | |
| 67 | static void res_append_resource (rc_res_directory **, rc_res_resource *, |
| 68 | int, const rc_res_id *, int); |
| 69 | |
| 70 | static rc_res_directory *resources = NULL; |
| 71 | |
| 72 | static const char *filename; |
| 73 | |
| 74 | extern char *program_name; |
| 75 | |
| 76 | /* Read resource file */ |
| 77 | rc_res_directory * |
| 78 | read_res_file (const char *fn) |
| 79 | { |
| 80 | rc_uint_type off, flen; |
| 81 | windres_bfd wrbfd; |
| 82 | bfd *abfd; |
| 83 | asection *sec; |
| 84 | filename = fn; |
| 85 | |
| 86 | flen = (rc_uint_type) get_file_size (filename); |
| 87 | if (! flen) |
| 88 | fatal ("can't open '%s' for input.", filename); |
| 89 | abfd = windres_open_as_binary (filename, 1); |
| 90 | sec = bfd_get_section_by_name (abfd, ".data"); |
| 91 | if (sec == NULL) |
| 92 | bfd_fatal ("bfd_get_section_by_name"); |
| 93 | set_windres_bfd (&wrbfd, abfd, sec, |
| 94 | (target_is_bigendian ? WR_KIND_BFD_BIN_B |
| 95 | : WR_KIND_BFD_BIN_L)); |
| 96 | off = 0; |
| 97 | |
| 98 | if (! probe_binary (&wrbfd, flen)) |
| 99 | set_windres_bfd_endianness (&wrbfd, ! target_is_bigendian); |
| 100 | |
| 101 | skip_null_resource (&wrbfd, &off, flen); |
| 102 | |
| 103 | while (read_resource_entry (&wrbfd, &off, flen)) |
| 104 | ; |
| 105 | |
| 106 | bfd_close (abfd); |
| 107 | |
| 108 | return resources; |
| 109 | } |
| 110 | |
| 111 | /* Write resource file */ |
| 112 | void |
| 113 | write_res_file (const char *fn,const rc_res_directory *resdir) |
| 114 | { |
| 115 | asection *sec; |
| 116 | rc_uint_type language; |
| 117 | bfd *abfd; |
| 118 | windres_bfd wrbfd; |
| 119 | unsigned long sec_length = 0,sec_length_wrote; |
| 120 | static const bfd_byte sign[] = |
| 121 | {0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, |
| 122 | 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, |
| 123 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 124 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| 125 | |
| 126 | filename = fn; |
| 127 | |
| 128 | abfd = windres_open_as_binary (filename, 0); |
| 129 | sec = bfd_make_section_with_flags (abfd, ".data", |
| 130 | (SEC_HAS_CONTENTS | SEC_ALLOC |
| 131 | | SEC_LOAD | SEC_DATA)); |
| 132 | if (sec == NULL) |
| 133 | bfd_fatal ("bfd_make_section"); |
| 134 | /* Requiring this is probably a bug in BFD. */ |
| 135 | sec->output_section = sec; |
| 136 | |
| 137 | set_windres_bfd (&wrbfd, abfd, sec, |
| 138 | (target_is_bigendian ? WR_KIND_BFD_BIN_B |
| 139 | : WR_KIND_BFD_BIN_L)); |
| 140 | |
| 141 | language = -1; |
| 142 | sec_length = write_res_directory ((windres_bfd *) NULL, 0x20UL, resdir, |
| 143 | (const rc_res_id *) NULL, |
| 144 | (const rc_res_id *) NULL, &language, 1); |
| 145 | if (! bfd_set_section_size (abfd, sec, (sec_length + 3) & ~3)) |
| 146 | bfd_fatal ("bfd_set_section_size"); |
| 147 | if ((sec_length & 3) != 0) |
| 148 | set_windres_bfd_content (&wrbfd, sign, sec_length, 4-(sec_length & 3)); |
| 149 | set_windres_bfd_content (&wrbfd, sign, 0, sizeof (sign)); |
| 150 | language = -1; |
| 151 | sec_length_wrote = write_res_directory (&wrbfd, 0x20UL, resdir, |
| 152 | (const rc_res_id *) NULL, |
| 153 | (const rc_res_id *) NULL, |
| 154 | &language, 1); |
| 155 | if (sec_length != sec_length_wrote) |
| 156 | fatal ("res write failed with different sizes (%lu/%lu).", |
| 157 | (unsigned long) sec_length, (unsigned long) sec_length_wrote); |
| 158 | |
| 159 | bfd_close (abfd); |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | /* Read a resource entry, returns 0 when all resources are read */ |
| 164 | static int |
| 165 | read_resource_entry (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax) |
| 166 | { |
| 167 | rc_res_id type; |
| 168 | rc_res_id name; |
| 169 | rc_res_res_info resinfo; |
| 170 | res_hdr reshdr; |
| 171 | void *buff; |
| 172 | |
| 173 | rc_res_resource *r; |
| 174 | struct bin_res_info l; |
| 175 | |
| 176 | off[0] = (off[0] + 3) & ~3; |
| 177 | |
| 178 | /* Read header */ |
| 179 | if ((off[0] + 8) > omax) |
| 180 | return 0; |
| 181 | read_res_data_hdr (wrbfd, off, omax, &reshdr); |
| 182 | |
| 183 | /* read resource type */ |
| 184 | read_res_id (wrbfd, off, omax, &type); |
| 185 | /* read resource id */ |
| 186 | read_res_id (wrbfd, off, omax, &name); |
| 187 | |
| 188 | off[0] = (off[0] + 3) & ~3; |
| 189 | |
| 190 | /* Read additional resource header */ |
| 191 | read_res_data (wrbfd, off, omax, &l, BIN_RES_INFO_SIZE); |
| 192 | resinfo.version = windres_get_32 (wrbfd, l.version, 4); |
| 193 | resinfo.memflags = windres_get_16 (wrbfd, l.memflags, 2); |
| 194 | resinfo.language = windres_get_16 (wrbfd, l.language, 2); |
| 195 | /* resinfo.version2 = windres_get_32 (wrbfd, l.version2, 4); */ |
| 196 | resinfo.characteristics = windres_get_32 (wrbfd, l.characteristics, 4); |
| 197 | |
| 198 | off[0] = (off[0] + 3) & ~3; |
| 199 | |
| 200 | /* Allocate buffer for data */ |
| 201 | buff = res_alloc (reshdr.data_size); |
| 202 | /* Read data */ |
| 203 | read_res_data (wrbfd, off, omax, buff, reshdr.data_size); |
| 204 | /* Convert binary data to resource */ |
| 205 | r = bin_to_res (wrbfd, type, buff, reshdr.data_size); |
| 206 | r->res_info = resinfo; |
| 207 | /* Add resource to resource directory */ |
| 208 | res_add_resource (r, &type, &name, resinfo.language, 0); |
| 209 | |
| 210 | return 1; |
| 211 | } |
| 212 | |
| 213 | /* write resource directory to binary resource file */ |
| 214 | static rc_uint_type |
| 215 | write_res_directory (windres_bfd *wrbfd, rc_uint_type off, const rc_res_directory *rd, |
| 216 | const rc_res_id *type, const rc_res_id *name, rc_uint_type *language, |
| 217 | int level) |
| 218 | { |
| 219 | const rc_res_entry *re; |
| 220 | |
| 221 | for (re = rd->entries; re != NULL; re = re->next) |
| 222 | { |
| 223 | switch (level) |
| 224 | { |
| 225 | case 1: |
| 226 | /* If we're at level 1, the key of this resource is the |
| 227 | type. This normally duplicates the information we have |
| 228 | stored with the resource itself, but we need to remember |
| 229 | the type if this is a user define resource type. */ |
| 230 | type = &re->id; |
| 231 | break; |
| 232 | |
| 233 | case 2: |
| 234 | /* If we're at level 2, the key of this resource is the name |
| 235 | we are going to use in the rc printout. */ |
| 236 | name = &re->id; |
| 237 | break; |
| 238 | |
| 239 | case 3: |
| 240 | /* If we're at level 3, then this key represents a language. |
| 241 | Use it to update the current language. */ |
| 242 | if (! re->id.named |
| 243 | && re->id.u.id != (unsigned long) *language |
| 244 | && (re->id.u.id & 0xffff) == re->id.u.id) |
| 245 | { |
| 246 | *language = re->id.u.id; |
| 247 | } |
| 248 | break; |
| 249 | |
| 250 | default: |
| 251 | break; |
| 252 | } |
| 253 | |
| 254 | if (re->subdir) |
| 255 | off = write_res_directory (wrbfd, off, re->u.dir, type, name, language, |
| 256 | level + 1); |
| 257 | else |
| 258 | { |
| 259 | if (level == 3) |
| 260 | { |
| 261 | /* This is the normal case: the three levels are |
| 262 | TYPE/NAME/LANGUAGE. NAME will have been set at level |
| 263 | 2, and represents the name to use. We probably just |
| 264 | set LANGUAGE, and it will probably match what the |
| 265 | resource itself records if anything. */ |
| 266 | off = write_res_resource (wrbfd, off, type, name, re->u.res, |
| 267 | language); |
| 268 | } |
| 269 | else |
| 270 | { |
| 271 | fprintf (stderr, "// Resource at unexpected level %d\n", level); |
| 272 | off = write_res_resource (wrbfd, off, type, (rc_res_id *) NULL, |
| 273 | re->u.res, language); |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | return off; |
| 279 | } |
| 280 | |
| 281 | static rc_uint_type |
| 282 | write_res_resource (windres_bfd *wrbfd, rc_uint_type off, const rc_res_id *type, |
| 283 | const rc_res_id *name, const rc_res_resource *res, |
| 284 | rc_uint_type *language ATTRIBUTE_UNUSED) |
| 285 | { |
| 286 | int rt; |
| 287 | |
| 288 | switch (res->type) |
| 289 | { |
| 290 | default: |
| 291 | abort (); |
| 292 | |
| 293 | case RES_TYPE_ACCELERATOR: |
| 294 | rt = RT_ACCELERATOR; |
| 295 | break; |
| 296 | |
| 297 | case RES_TYPE_BITMAP: |
| 298 | rt = RT_BITMAP; |
| 299 | break; |
| 300 | |
| 301 | case RES_TYPE_CURSOR: |
| 302 | rt = RT_CURSOR; |
| 303 | break; |
| 304 | |
| 305 | case RES_TYPE_GROUP_CURSOR: |
| 306 | rt = RT_GROUP_CURSOR; |
| 307 | break; |
| 308 | |
| 309 | case RES_TYPE_DIALOG: |
| 310 | rt = RT_DIALOG; |
| 311 | break; |
| 312 | |
| 313 | case RES_TYPE_FONT: |
| 314 | rt = RT_FONT; |
| 315 | break; |
| 316 | |
| 317 | case RES_TYPE_FONTDIR: |
| 318 | rt = RT_FONTDIR; |
| 319 | break; |
| 320 | |
| 321 | case RES_TYPE_ICON: |
| 322 | rt = RT_ICON; |
| 323 | break; |
| 324 | |
| 325 | case RES_TYPE_GROUP_ICON: |
| 326 | rt = RT_GROUP_ICON; |
| 327 | break; |
| 328 | |
| 329 | case RES_TYPE_MENU: |
| 330 | rt = RT_MENU; |
| 331 | break; |
| 332 | |
| 333 | case RES_TYPE_MESSAGETABLE: |
| 334 | rt = RT_MESSAGETABLE; |
| 335 | break; |
| 336 | |
| 337 | case RES_TYPE_RCDATA: |
| 338 | rt = RT_RCDATA; |
| 339 | break; |
| 340 | |
| 341 | case RES_TYPE_STRINGTABLE: |
| 342 | rt = RT_STRING; |
| 343 | break; |
| 344 | |
| 345 | case RES_TYPE_USERDATA: |
| 346 | rt = 0; |
| 347 | break; |
| 348 | |
| 349 | case RES_TYPE_VERSIONINFO: |
| 350 | rt = RT_VERSION; |
| 351 | break; |
| 352 | |
| 353 | case RES_TYPE_TOOLBAR: |
| 354 | rt = RT_TOOLBAR; |
| 355 | break; |
| 356 | } |
| 357 | |
| 358 | if (rt != 0 |
| 359 | && type != NULL |
| 360 | && (type->named || type->u.id != (unsigned long) rt)) |
| 361 | { |
| 362 | fprintf (stderr, "// Unexpected resource type mismatch: "); |
| 363 | res_id_print (stderr, *type, 1); |
| 364 | fprintf (stderr, " != %d", rt); |
| 365 | abort (); |
| 366 | } |
| 367 | |
| 368 | return write_res_bin (wrbfd, off, res, type, name, &res->res_info); |
| 369 | } |
| 370 | |
| 371 | /* Write a resource in binary resource format */ |
| 372 | static rc_uint_type |
| 373 | write_res_bin (windres_bfd *wrbfd, rc_uint_type off, const rc_res_resource *res, |
| 374 | const rc_res_id *type, const rc_res_id *name, |
| 375 | const rc_res_res_info *resinfo) |
| 376 | { |
| 377 | rc_uint_type noff; |
| 378 | rc_uint_type datasize = 0; |
| 379 | |
| 380 | noff = res_to_bin ((windres_bfd *) NULL, off, res); |
| 381 | datasize = noff - off; |
| 382 | |
| 383 | off = write_res_header (wrbfd, off, datasize, type, name, resinfo); |
| 384 | return res_to_bin (wrbfd, off, res); |
| 385 | } |
| 386 | |
| 387 | /* Get number of bytes needed to store an id in binary format */ |
| 388 | static unsigned long |
| 389 | get_id_size (const rc_res_id *id) |
| 390 | { |
| 391 | if (id->named) |
| 392 | return sizeof (unichar) * (id->u.n.length + 1); |
| 393 | else |
| 394 | return sizeof (unichar) * 2; |
| 395 | } |
| 396 | |
| 397 | /* Write a resource header */ |
| 398 | static rc_uint_type |
| 399 | write_res_header (windres_bfd *wrbfd, rc_uint_type off, rc_uint_type datasize, |
| 400 | const rc_res_id *type, const rc_res_id *name, |
| 401 | const rc_res_res_info *resinfo) |
| 402 | { |
| 403 | res_hdr reshdr; |
| 404 | reshdr.data_size = datasize; |
| 405 | reshdr.header_size = 24 + get_id_size (type) + get_id_size (name); |
| 406 | |
| 407 | reshdr.header_size = (reshdr.header_size + 3) & ~3; |
| 408 | |
| 409 | off = (off + 3) & ~3; |
| 410 | |
| 411 | off = write_res_data_hdr (wrbfd, off, &reshdr); |
| 412 | off = write_res_id (wrbfd, off, type); |
| 413 | off = write_res_id (wrbfd, off, name); |
| 414 | |
| 415 | off = (off + 3) & ~3; |
| 416 | |
| 417 | off = write_res_info (wrbfd, off, resinfo); |
| 418 | off = (off + 3) & ~3; |
| 419 | return off; |
| 420 | } |
| 421 | |
| 422 | static rc_uint_type |
| 423 | write_res_data_hdr (windres_bfd *wrbfd, rc_uint_type off, res_hdr *hdr) |
| 424 | { |
| 425 | if (wrbfd) |
| 426 | { |
| 427 | struct bin_res_hdr brh; |
| 428 | windres_put_32 (wrbfd, brh.data_size, hdr->data_size); |
| 429 | windres_put_32 (wrbfd, brh.header_size, hdr->header_size); |
| 430 | set_windres_bfd_content (wrbfd, &brh, off, BIN_RES_HDR_SIZE); |
| 431 | } |
| 432 | return off + BIN_RES_HDR_SIZE; |
| 433 | } |
| 434 | |
| 435 | static void |
| 436 | read_res_data_hdr (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax, |
| 437 | res_hdr *reshdr) |
| 438 | { |
| 439 | struct bin_res_hdr brh; |
| 440 | |
| 441 | if ((off[0] + BIN_RES_HDR_SIZE) > omax) |
| 442 | fatal ("%s: unexpected end of file %ld/%ld", filename,(long) off[0], (long) omax); |
| 443 | |
| 444 | get_windres_bfd_content (wrbfd, &brh, off[0], BIN_RES_HDR_SIZE); |
| 445 | reshdr->data_size = windres_get_32 (wrbfd, brh.data_size, 4); |
| 446 | reshdr->header_size = windres_get_32 (wrbfd, brh.header_size, 4); |
| 447 | off[0] += BIN_RES_HDR_SIZE; |
| 448 | } |
| 449 | |
| 450 | /* Read data from file, abort on failure */ |
| 451 | static void |
| 452 | read_res_data (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax, void *data, |
| 453 | rc_uint_type size) |
| 454 | { |
| 455 | if ((off[0] + size) > omax) |
| 456 | fatal ("%s: unexpected end of file %ld/%ld %ld", filename,(long) off[0], |
| 457 | (long) omax, (long) size); |
| 458 | get_windres_bfd_content (wrbfd, data, off[0], size); |
| 459 | off[0] += size; |
| 460 | } |
| 461 | |
| 462 | /* Write a resource id */ |
| 463 | static rc_uint_type |
| 464 | write_res_id (windres_bfd *wrbfd, rc_uint_type off, const rc_res_id *id) |
| 465 | { |
| 466 | if (id->named) |
| 467 | { |
| 468 | rc_uint_type len = (((bfd_signed_vma) id->u.n.length < 0 ? 0 : id->u.n.length) + 1); |
| 469 | if (wrbfd) |
| 470 | { |
| 471 | rc_uint_type i; |
| 472 | bfd_byte *d = (bfd_byte *) xmalloc (len * sizeof (unichar)); |
| 473 | for (i = 0; i < (len - 1); i++) |
| 474 | windres_put_16 (wrbfd, d + (i * sizeof (unichar)), id->u.n.name[i]); |
| 475 | windres_put_16 (wrbfd, d + (i * sizeof (unichar)), 0); |
| 476 | set_windres_bfd_content (wrbfd, d, off, (len * sizeof (unichar))); |
| 477 | } |
| 478 | off += (len * sizeof (unichar)); |
| 479 | } |
| 480 | else |
| 481 | { |
| 482 | if (wrbfd) |
| 483 | { |
| 484 | struct bin_res_id bid; |
| 485 | windres_put_16 (wrbfd, bid.sig, 0xffff); |
| 486 | windres_put_16 (wrbfd, bid.id, id->u.id); |
| 487 | set_windres_bfd_content (wrbfd, &bid, off, BIN_RES_ID); |
| 488 | } |
| 489 | off += BIN_RES_ID; |
| 490 | } |
| 491 | return off; |
| 492 | } |
| 493 | |
| 494 | /* Write resource info */ |
| 495 | static rc_uint_type |
| 496 | write_res_info (windres_bfd *wrbfd, rc_uint_type off, const rc_res_res_info *info) |
| 497 | { |
| 498 | if (wrbfd) |
| 499 | { |
| 500 | struct bin_res_info l; |
| 501 | |
| 502 | windres_put_32 (wrbfd, l.version, info->version); |
| 503 | windres_put_16 (wrbfd, l.memflags, info->memflags); |
| 504 | windres_put_16 (wrbfd, l.language, info->language); |
| 505 | windres_put_32 (wrbfd, l.version2, info->version); |
| 506 | windres_put_32 (wrbfd, l.characteristics, info->characteristics); |
| 507 | set_windres_bfd_content (wrbfd, &l, off, BIN_RES_INFO_SIZE); |
| 508 | } |
| 509 | return off + BIN_RES_INFO_SIZE; |
| 510 | } |
| 511 | |
| 512 | /* read a resource identifier */ |
| 513 | static void |
| 514 | read_res_id (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax, rc_res_id *id) |
| 515 | { |
| 516 | struct bin_res_id bid; |
| 517 | unsigned short ord; |
| 518 | unichar *id_s = NULL; |
| 519 | rc_uint_type len; |
| 520 | |
| 521 | read_res_data (wrbfd, off, omax, &bid, BIN_RES_ID - 2); |
| 522 | ord = (unsigned short) windres_get_16 (wrbfd, bid.sig, 2); |
| 523 | if (ord == 0xFFFF) /* an ordinal id */ |
| 524 | { |
| 525 | read_res_data (wrbfd, off, omax, bid.id, BIN_RES_ID - 2); |
| 526 | id->named = 0; |
| 527 | id->u.id = windres_get_16 (wrbfd, bid.id, 2); |
| 528 | } |
| 529 | else |
| 530 | /* named id */ |
| 531 | { |
| 532 | off[0] -= 2; |
| 533 | id_s = read_unistring (wrbfd, off, omax, &len); |
| 534 | id->named = 1; |
| 535 | id->u.n.length = len; |
| 536 | id->u.n.name = id_s; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | /* Read a null terminated UNICODE string */ |
| 541 | static unichar * |
| 542 | read_unistring (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax, |
| 543 | rc_uint_type *len) |
| 544 | { |
| 545 | unichar *s; |
| 546 | bfd_byte d[2]; |
| 547 | unichar c; |
| 548 | unichar *p; |
| 549 | rc_uint_type l; |
| 550 | rc_uint_type soff = off[0]; |
| 551 | |
| 552 | do |
| 553 | { |
| 554 | read_res_data (wrbfd, &soff, omax, d, sizeof (unichar)); |
| 555 | c = windres_get_16 (wrbfd, d, 2); |
| 556 | } |
| 557 | while (c != 0); |
| 558 | l = ((soff - off[0]) / sizeof (unichar)); |
| 559 | |
| 560 | /* there are hardly any names longer than 256 characters, but anyway. */ |
| 561 | p = s = (unichar *) xmalloc (sizeof (unichar) * l); |
| 562 | do |
| 563 | { |
| 564 | read_res_data (wrbfd, off, omax, d, sizeof (unichar)); |
| 565 | c = windres_get_16 (wrbfd, d, 2); |
| 566 | *p++ = c; |
| 567 | } |
| 568 | while (c != 0); |
| 569 | *len = l - 1; |
| 570 | return s; |
| 571 | } |
| 572 | |
| 573 | static int |
| 574 | probe_binary (windres_bfd *wrbfd, rc_uint_type omax) |
| 575 | { |
| 576 | rc_uint_type off; |
| 577 | res_hdr reshdr; |
| 578 | |
| 579 | off = 0; |
| 580 | read_res_data_hdr (wrbfd, &off, omax, &reshdr); |
| 581 | if (reshdr.data_size != 0) |
| 582 | return 1; |
| 583 | if ((reshdr.header_size != 0x20 && ! target_is_bigendian) |
| 584 | || (reshdr.header_size != 0x20000000 && target_is_bigendian)) |
| 585 | return 1; |
| 586 | |
| 587 | /* Subtract size of HeaderSize. DataSize has to be zero. */ |
| 588 | off += 0x20 - BIN_RES_HDR_SIZE; |
| 589 | if ((off + BIN_RES_HDR_SIZE) >= omax) |
| 590 | return 1; |
| 591 | read_res_data_hdr (wrbfd, &off, omax, &reshdr); |
| 592 | /* off is advanced by BIN_RES_HDR_SIZE in read_res_data_hdr() |
| 593 | which is part of reshdr.header_size. We shouldn't take it |
| 594 | into account twice. */ |
| 595 | if ((off - BIN_RES_HDR_SIZE + reshdr.data_size + reshdr.header_size) > omax) |
| 596 | return 0; |
| 597 | return 1; |
| 598 | } |
| 599 | |
| 600 | /* Check if file is a win32 binary resource file, if so |
| 601 | skip past the null resource. Returns 0 if successful, -1 on |
| 602 | error. |
| 603 | */ |
| 604 | static void |
| 605 | skip_null_resource (windres_bfd *wrbfd, rc_uint_type *off, rc_uint_type omax) |
| 606 | { |
| 607 | res_hdr reshdr; |
| 608 | read_res_data_hdr (wrbfd, off, omax, &reshdr); |
| 609 | if (reshdr.data_size != 0) |
| 610 | goto skip_err; |
| 611 | if ((reshdr.header_size != 0x20 && ! target_is_bigendian) |
| 612 | || (reshdr.header_size != 0x20000000 && target_is_bigendian)) |
| 613 | goto skip_err; |
| 614 | |
| 615 | /* Subtract size of HeaderSize. DataSize has to be zero. */ |
| 616 | off[0] += 0x20 - BIN_RES_HDR_SIZE; |
| 617 | if (off[0] >= omax) |
| 618 | goto skip_err; |
| 619 | |
| 620 | return; |
| 621 | |
| 622 | skip_err: |
| 623 | fprintf (stderr, "%s: %s: Not a valid WIN32 resource file\n", program_name, |
| 624 | filename); |
| 625 | xexit (1); |
| 626 | } |
| 627 | |
| 628 | /* Add a resource to resource directory */ |
| 629 | static void |
| 630 | res_add_resource (rc_res_resource *r, const rc_res_id *type, const rc_res_id *id, |
| 631 | rc_uint_type language, int dupok) |
| 632 | { |
| 633 | rc_res_id a[3]; |
| 634 | |
| 635 | a[0] = *type; |
| 636 | a[1] = *id; |
| 637 | a[2].named = 0; |
| 638 | a[2].u.id = language; |
| 639 | res_append_resource (&resources, r, 3, a, dupok); |
| 640 | } |
| 641 | |
| 642 | /* Append a resource to resource directory. |
| 643 | This is just copied from define_resource |
| 644 | and modified to add an existing resource. |
| 645 | */ |
| 646 | static void |
| 647 | res_append_resource (rc_res_directory **res_dirs, rc_res_resource *resource, |
| 648 | int cids, const rc_res_id *ids, int dupok) |
| 649 | { |
| 650 | rc_res_entry *re = NULL; |
| 651 | int i; |
| 652 | |
| 653 | assert (cids > 0); |
| 654 | for (i = 0; i < cids; i++) |
| 655 | { |
| 656 | rc_res_entry **pp; |
| 657 | |
| 658 | if (*res_dirs == NULL) |
| 659 | { |
| 660 | *res_dirs = ((rc_res_directory *) |
| 661 | res_alloc (sizeof (rc_res_directory))); |
| 662 | |
| 663 | (*res_dirs)->characteristics = 0; |
| 664 | /* Using a real timestamp only serves to create non-deterministic |
| 665 | results. Use zero instead. */ |
| 666 | (*res_dirs)->time = 0; |
| 667 | (*res_dirs)->major = 0; |
| 668 | (*res_dirs)->minor = 0; |
| 669 | (*res_dirs)->entries = NULL; |
| 670 | } |
| 671 | |
| 672 | for (pp = &(*res_dirs)->entries; *pp != NULL; pp = &(*pp)->next) |
| 673 | if (res_id_cmp ((*pp)->id, ids[i]) == 0) |
| 674 | break; |
| 675 | |
| 676 | if (*pp != NULL) |
| 677 | re = *pp; |
| 678 | else |
| 679 | { |
| 680 | re = (rc_res_entry *) res_alloc (sizeof (rc_res_entry)); |
| 681 | re->next = NULL; |
| 682 | re->id = ids[i]; |
| 683 | if ((i + 1) < cids) |
| 684 | { |
| 685 | re->subdir = 1; |
| 686 | re->u.dir = NULL; |
| 687 | } |
| 688 | else |
| 689 | { |
| 690 | re->subdir = 0; |
| 691 | re->u.res = NULL; |
| 692 | } |
| 693 | |
| 694 | *pp = re; |
| 695 | } |
| 696 | |
| 697 | if ((i + 1) < cids) |
| 698 | { |
| 699 | if (! re->subdir) |
| 700 | { |
| 701 | fprintf (stderr, "%s: ", program_name); |
| 702 | res_ids_print (stderr, i, ids); |
| 703 | fprintf (stderr, ": expected to be a directory\n"); |
| 704 | xexit (1); |
| 705 | } |
| 706 | |
| 707 | res_dirs = &re->u.dir; |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | if (re->subdir) |
| 712 | { |
| 713 | fprintf (stderr, "%s: ", program_name); |
| 714 | res_ids_print (stderr, cids, ids); |
| 715 | fprintf (stderr, ": expected to be a leaf\n"); |
| 716 | xexit (1); |
| 717 | } |
| 718 | |
| 719 | if (re->u.res != NULL) |
| 720 | { |
| 721 | if (dupok) |
| 722 | return; |
| 723 | |
| 724 | fprintf (stderr, "%s: warning: ", program_name); |
| 725 | res_ids_print (stderr, cids, ids); |
| 726 | fprintf (stderr, ": duplicate value\n"); |
| 727 | } |
| 728 | |
| 729 | re->u.res = resource; |
| 730 | } |