| 1 |
/* |
| 2 |
* extfs_beos.cpp - MacOS file system for access native file system access, BeOS specific stuff |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-1999 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program 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 |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include "sysdeps.h" |
| 22 |
|
| 23 |
#include <sys/types.h> |
| 24 |
#include <sys/stat.h> |
| 25 |
#include <string.h> |
| 26 |
#include <stdio.h> |
| 27 |
#include <stdlib.h> |
| 28 |
#include <unistd.h> |
| 29 |
#include <fcntl.h> |
| 30 |
#include <dirent.h> |
| 31 |
#include <errno.h> |
| 32 |
|
| 33 |
#include <fs_attr.h> |
| 34 |
#include <support/TypeConstants.h> |
| 35 |
#include <storage/Mime.h> |
| 36 |
|
| 37 |
#include "extfs.h" |
| 38 |
#include "extfs_defs.h" |
| 39 |
|
| 40 |
#define DEBUG 0 |
| 41 |
#include "debug.h" |
| 42 |
|
| 43 |
|
| 44 |
// Default Finder flags |
| 45 |
const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited; |
| 46 |
|
| 47 |
// Temporary buffer for transfers from/to kernel space |
| 48 |
const int TMP_BUF_SIZE = 0x10000; |
| 49 |
static uint8 *tmp_buf = NULL; |
| 50 |
|
| 51 |
|
| 52 |
/* |
| 53 |
* Initialization |
| 54 |
*/ |
| 55 |
|
| 56 |
void extfs_init(void) |
| 57 |
{ |
| 58 |
// Allocate temporary buffer |
| 59 |
tmp_buf = new uint8[TMP_BUF_SIZE]; |
| 60 |
} |
| 61 |
|
| 62 |
|
| 63 |
/* |
| 64 |
* Deinitialization |
| 65 |
*/ |
| 66 |
|
| 67 |
void extfs_exit(void) |
| 68 |
{ |
| 69 |
// Delete temporary buffer |
| 70 |
delete[] tmp_buf; |
| 71 |
} |
| 72 |
|
| 73 |
|
| 74 |
/* |
| 75 |
* Add component to path name |
| 76 |
*/ |
| 77 |
|
| 78 |
void add_path_component(char *path, const char *component) |
| 79 |
{ |
| 80 |
int l = strlen(path); |
| 81 |
if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') { |
| 82 |
path[l] = '/'; |
| 83 |
path[l+1] = 0; |
| 84 |
} |
| 85 |
strncat(path, component, MAX_PATH_LENGTH-1); |
| 86 |
} |
| 87 |
|
| 88 |
|
| 89 |
/* |
| 90 |
* Get/set finder type/creator for file specified by full path |
| 91 |
*/ |
| 92 |
|
| 93 |
struct mime2type { |
| 94 |
const char *mime; |
| 95 |
uint32 type; |
| 96 |
uint32 creator; |
| 97 |
bool reversible; // type -> mime translation possible |
| 98 |
}; |
| 99 |
|
| 100 |
static const mime2type m2t_translation[] = { |
| 101 |
{"application/x-compress", 'ZIVM', 'LZIV', true}, |
| 102 |
{"application/x-gzip", 'Gzip', 'Gzip', true}, |
| 103 |
{"application/x-macbinary", 'BINA', '????', false}, |
| 104 |
{"application/mac-binhex40", 'TEXT', 'SITx', false}, |
| 105 |
{"application/pdf", 'PDF ', 'CARO', true}, |
| 106 |
{"application/postscript", 'TEXT', 'ttxt', false}, |
| 107 |
{"application/x-stuffit", 'SIT!', 'SITx', true}, |
| 108 |
{"application/x-tar", 'TARF', 'TAR ', true}, |
| 109 |
{"application/x-uuencode", 'TEXT', 'SITx', false}, |
| 110 |
{"application/zip", 'ZIP ', 'ZIP ', true}, |
| 111 |
{"audio/x-8svx", '8SVX', 'SNDM', true}, |
| 112 |
{"audio/x-aifc", 'AIFC', 'TVOD', true}, |
| 113 |
{"audio/x-aiff", 'AIFF', 'TVOD', true}, |
| 114 |
{"audio/basic", 'ULAW', 'TVOD', true}, |
| 115 |
{"audio/x-midi", 'MIDI', 'TVOD', true}, |
| 116 |
{"audio/x-mpeg", 'MPG ', 'TVOD', true}, |
| 117 |
{"audio/x-wav", 'WAVE', 'TVOD', true}, |
| 118 |
{"image/x-bmp", 'BMPf', 'ogle', true}, |
| 119 |
{"image/gif", 'GIFf', 'ogle', true}, |
| 120 |
{"image/x-ilbm", 'ILBM', 'GKON', true}, |
| 121 |
{"image/jpeg", 'JPEG', 'ogle', true}, |
| 122 |
{"image/jpeg", 'JFIF', 'ogle', true}, |
| 123 |
{"image/x-photoshop", '8BPS', '8BIM', true}, |
| 124 |
{"image/pict", 'PICT', 'ogle', true}, |
| 125 |
{"image/png", 'PNGf', 'ogle', true}, |
| 126 |
{"image/x-sgi", '.SGI', 'ogle', true}, |
| 127 |
{"image/x-targa", 'TPIC', 'ogle', true}, |
| 128 |
{"image/tiff", 'TIFF', 'ogle', true}, |
| 129 |
{"text/html", 'TEXT', 'MOSS', false}, |
| 130 |
{"text/plain", 'TEXT', 'ttxt', true}, |
| 131 |
{"text/rtf", 'TEXT', 'MSWD', false}, |
| 132 |
{"text/x-source-code", 'TEXT', 'R*ch', false}, |
| 133 |
{"video/mpeg", 'MPEG', 'TVOD', true}, |
| 134 |
{"video/quicktime", 'MooV', 'TVOD', true}, |
| 135 |
{"video/x-flc", 'FLI ', 'TVOD', true}, |
| 136 |
{"video/x-msvideo", 'VfW ', 'TVOD', true}, |
| 137 |
{NULL, 0, 0, false} // End marker |
| 138 |
}; |
| 139 |
|
| 140 |
void get_finder_type(const char *path, uint32 &type, uint32 &creator) |
| 141 |
{ |
| 142 |
type = 0; |
| 143 |
creator = 0; |
| 144 |
|
| 145 |
// Open file |
| 146 |
int fd = open(path, O_RDONLY); |
| 147 |
if (fd < 0) |
| 148 |
return; |
| 149 |
|
| 150 |
// Read BeOS MIME type and close file |
| 151 |
char mime[256]; |
| 152 |
ssize_t actual = fs_read_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, mime, 256); |
| 153 |
mime[255] = 0; |
| 154 |
|
| 155 |
if (actual > 0) { |
| 156 |
|
| 157 |
// Translate MIME type to MacOS type/creator |
| 158 |
char mactype[4]; |
| 159 |
if (sscanf(mime, "application/x-MacOS-%c%c%c%c", mactype, mactype+1, mactype+2, mactype+3) == 4) { |
| 160 |
|
| 161 |
// MacOS style type |
| 162 |
memcpy(&type, mactype, 4); |
| 163 |
|
| 164 |
} else { |
| 165 |
|
| 166 |
// MIME string, look in table |
| 167 |
for (int i=0; m2t_translation[i].mime; i++) { |
| 168 |
if (!strcmp(mime, m2t_translation[i].mime)) { |
| 169 |
type = m2t_translation[i].type; |
| 170 |
creator = m2t_translation[i].creator; |
| 171 |
break; |
| 172 |
} |
| 173 |
} |
| 174 |
} |
| 175 |
} |
| 176 |
|
| 177 |
// Override file type with MACOS:CREATOR attribute |
| 178 |
fs_read_attr(fd, "MACOS:CREATOR", B_UINT32_TYPE, 0, &creator, 4); |
| 179 |
|
| 180 |
// Close file |
| 181 |
close(fd); |
| 182 |
} |
| 183 |
|
| 184 |
void set_finder_type(const char *path, uint32 type, uint32 creator) |
| 185 |
{ |
| 186 |
// Open file |
| 187 |
int fd = open(path, O_WRONLY); |
| 188 |
if (fd < 0) |
| 189 |
return; |
| 190 |
|
| 191 |
// Set BEOS:TYPE attribute |
| 192 |
if (type) { |
| 193 |
bool written = false; |
| 194 |
for (int i=0; m2t_translation[i].mime; i++) { |
| 195 |
if (m2t_translation[i].type == type && m2t_translation[i].reversible) { |
| 196 |
fs_write_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, m2t_translation[i].mime, strlen(m2t_translation[i].mime) + 1); |
| 197 |
written = true; |
| 198 |
break; |
| 199 |
} |
| 200 |
} |
| 201 |
if (!written) { |
| 202 |
char mime[256]; |
| 203 |
sprintf(mime, "application/x-MacOS-%c%c%c%c", type >> 24, type >> 16, type >> 8, type); |
| 204 |
fs_write_attr(fd, "BEOS:TYPE", B_MIME_STRING_TYPE, 0, mime, strlen(mime) + 1); |
| 205 |
} |
| 206 |
} |
| 207 |
|
| 208 |
// Set MACOS:CREATOR attribute |
| 209 |
if (creator) |
| 210 |
fs_write_attr(fd, "MACOS:CREATOR", B_UINT32_TYPE, 0, &creator, 4); |
| 211 |
|
| 212 |
// Close file |
| 213 |
close(fd); |
| 214 |
} |
| 215 |
|
| 216 |
|
| 217 |
/* |
| 218 |
* Get/set finder flags for file/dir specified by full path (MACOS:HFS_FLAGS attribute) |
| 219 |
*/ |
| 220 |
|
| 221 |
void get_finder_flags(const char *path, uint16 &flags) |
| 222 |
{ |
| 223 |
flags = DEFAULT_FINDER_FLAGS; // Default |
| 224 |
|
| 225 |
// Open file |
| 226 |
int fd = open(path, O_RDONLY); |
| 227 |
if (fd < 0) |
| 228 |
return; |
| 229 |
|
| 230 |
// Read MACOS:HFS_FLAGS attribute |
| 231 |
fs_read_attr(fd, "MACOS:HFS_FLAGS", B_UINT16_TYPE, 0, &flags, 2); |
| 232 |
|
| 233 |
// Close file |
| 234 |
close(fd); |
| 235 |
} |
| 236 |
|
| 237 |
void set_finder_flags(const char *path, uint16 flags) |
| 238 |
{ |
| 239 |
// Open file |
| 240 |
int fd = open(path, O_WRONLY); |
| 241 |
if (fd < 0) |
| 242 |
return; |
| 243 |
|
| 244 |
// Write MACOS:HFS_FLAGS attribute |
| 245 |
if (flags != DEFAULT_FINDER_FLAGS) |
| 246 |
fs_write_attr(fd, "MACOS:HFS_FLAGS", B_UINT16_TYPE, 0, &flags, 2); |
| 247 |
else |
| 248 |
fs_remove_attr(fd, "MACOS:HFS_FLAGS"); |
| 249 |
|
| 250 |
// Close file |
| 251 |
close(fd); |
| 252 |
} |
| 253 |
|
| 254 |
|
| 255 |
/* |
| 256 |
* Resource fork emulation functions |
| 257 |
*/ |
| 258 |
|
| 259 |
uint32 get_rfork_size(const char *path) |
| 260 |
{ |
| 261 |
// Open file |
| 262 |
int fd = open(path, O_RDONLY); |
| 263 |
if (fd < 0) |
| 264 |
return 0; |
| 265 |
|
| 266 |
// Get size of MACOS:RFORK attribute |
| 267 |
struct attr_info info; |
| 268 |
if (fs_stat_attr(fd, "MACOS:RFORK", &info) < 0) |
| 269 |
info.size = 0; |
| 270 |
|
| 271 |
// Close file and return size |
| 272 |
close(fd); |
| 273 |
return info.size; |
| 274 |
} |
| 275 |
|
| 276 |
int open_rfork(const char *path, int flag) |
| 277 |
{ |
| 278 |
// Open original file |
| 279 |
int fd = open(path, flag); |
| 280 |
if (fd < 0) |
| 281 |
return -1; |
| 282 |
|
| 283 |
// Open temporary file for resource fork |
| 284 |
char rname[L_tmpnam]; |
| 285 |
tmpnam(rname); |
| 286 |
int rfd = open(rname, O_RDWR | O_CREAT | O_TRUNC, 0666); |
| 287 |
if (rfd < 0) { |
| 288 |
close(fd); |
| 289 |
return -1; |
| 290 |
} |
| 291 |
unlink(rname); // File will be deleted when closed |
| 292 |
|
| 293 |
// Get size of MACOS:RFORK attribute |
| 294 |
struct attr_info info; |
| 295 |
if (fs_stat_attr(fd, "MACOS:RFORK", &info) < 0) |
| 296 |
info.size = 0; |
| 297 |
|
| 298 |
// Copy resource data from attribute to temporary file |
| 299 |
if (info.size > 0) { |
| 300 |
|
| 301 |
// Allocate buffer |
| 302 |
void *buf = malloc(info.size); |
| 303 |
if (buf == NULL) { |
| 304 |
close(rfd); |
| 305 |
close(fd); |
| 306 |
return -1; |
| 307 |
} |
| 308 |
|
| 309 |
// Copy data |
| 310 |
fs_read_attr(fd, "MACOS:RFORK", B_RAW_TYPE, 0, buf, info.size); |
| 311 |
write(rfd, buf, info.size); |
| 312 |
lseek(rfd, 0, SEEK_SET); |
| 313 |
|
| 314 |
// Free buffer |
| 315 |
if (buf) |
| 316 |
free(buf); |
| 317 |
} |
| 318 |
|
| 319 |
// Close original file |
| 320 |
close(fd); |
| 321 |
return rfd; |
| 322 |
} |
| 323 |
|
| 324 |
void close_rfork(const char *path, int fd) |
| 325 |
{ |
| 326 |
if (fd < 0) |
| 327 |
return; |
| 328 |
|
| 329 |
// Get size of temporary file |
| 330 |
struct stat st; |
| 331 |
if (fstat(fd, &st) < 0) |
| 332 |
st.st_size = 0; |
| 333 |
|
| 334 |
// Open original file |
| 335 |
int ofd = open(path, O_WRONLY); |
| 336 |
if (ofd > 0) { |
| 337 |
|
| 338 |
// Copy resource data to MACOS:RFORK attribute |
| 339 |
if (st.st_size > 0) { |
| 340 |
|
| 341 |
// Allocate buffer |
| 342 |
void *buf = malloc(st.st_size); |
| 343 |
if (buf == NULL) { |
| 344 |
close(ofd); |
| 345 |
close(fd); |
| 346 |
return; |
| 347 |
} |
| 348 |
|
| 349 |
// Copy data |
| 350 |
lseek(fd, 0, SEEK_SET); |
| 351 |
read(fd, buf, st.st_size); |
| 352 |
fs_write_attr(ofd, "MACOS:RFORK", B_RAW_TYPE, 0, buf, st.st_size); |
| 353 |
|
| 354 |
// Free buffer |
| 355 |
if (buf) |
| 356 |
free(buf); |
| 357 |
|
| 358 |
} else |
| 359 |
fs_remove_attr(ofd, "MACOS:RFORK"); |
| 360 |
|
| 361 |
// Close original file |
| 362 |
close(ofd); |
| 363 |
} |
| 364 |
|
| 365 |
// Close temporary file |
| 366 |
close(fd); |
| 367 |
} |
| 368 |
|
| 369 |
|
| 370 |
/* |
| 371 |
* Read "length" bytes from file to "buffer", |
| 372 |
* returns number of bytes read (or 0) |
| 373 |
*/ |
| 374 |
|
| 375 |
static inline ssize_t sread(int fd, void *buf, size_t count) |
| 376 |
{ |
| 377 |
ssize_t res; |
| 378 |
while ((res = read(fd, buf, count)) == B_INTERRUPTED) ; |
| 379 |
return res; |
| 380 |
} |
| 381 |
|
| 382 |
size_t extfs_read(int fd, void *buffer, size_t length) |
| 383 |
{ |
| 384 |
errno = 0; |
| 385 |
|
| 386 |
// Buffer in kernel space? |
| 387 |
size_t actual = 0; |
| 388 |
if ((uint32)buffer < 0x80000000) { |
| 389 |
|
| 390 |
// Yes, transfer via buffer |
| 391 |
while (length) { |
| 392 |
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 393 |
ssize_t res = sread(fd, tmp_buf, transfer_size); |
| 394 |
if (res >= 0) { |
| 395 |
memcpy(buffer, tmp_buf, res); |
| 396 |
buffer = (void *)((uint8 *)buffer + res); |
| 397 |
length -= res; |
| 398 |
actual += res; |
| 399 |
} |
| 400 |
if (res != transfer_size) |
| 401 |
return actual; |
| 402 |
} |
| 403 |
|
| 404 |
} else { |
| 405 |
|
| 406 |
// No, transfer directly |
| 407 |
actual = sread(fd, buffer, length); |
| 408 |
if (actual < 0) |
| 409 |
actual = 0; |
| 410 |
} |
| 411 |
return actual; |
| 412 |
} |
| 413 |
|
| 414 |
|
| 415 |
/* |
| 416 |
* Write "length" bytes from "buffer" to file, |
| 417 |
* returns number of bytes written (or 0) |
| 418 |
*/ |
| 419 |
|
| 420 |
static inline ssize_t swrite(int fd, void *buf, size_t count) |
| 421 |
{ |
| 422 |
ssize_t res; |
| 423 |
while ((res = write(fd, buf, count)) == B_INTERRUPTED) ; |
| 424 |
return res; |
| 425 |
} |
| 426 |
|
| 427 |
size_t extfs_write(int fd, void *buffer, size_t length) |
| 428 |
{ |
| 429 |
errno = 0; |
| 430 |
|
| 431 |
// Buffer in kernel space? |
| 432 |
size_t actual = 0; |
| 433 |
if ((uint32)buffer < 0x80000000) { |
| 434 |
|
| 435 |
// Yes, transfer via buffer |
| 436 |
while (length) { |
| 437 |
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 438 |
memcpy(tmp_buf, buffer, transfer_size); |
| 439 |
ssize_t res = swrite(fd, tmp_buf, transfer_size); |
| 440 |
if (res >= 0) { |
| 441 |
buffer = (void *)((uint8 *)buffer + res); |
| 442 |
length -= res; |
| 443 |
actual += res; |
| 444 |
} |
| 445 |
if (res != transfer_size) |
| 446 |
return actual; |
| 447 |
} |
| 448 |
|
| 449 |
} else { |
| 450 |
|
| 451 |
// No, transfer directly |
| 452 |
actual = swrite(fd, buffer, length); |
| 453 |
if (actual < 0) |
| 454 |
actual = 0; |
| 455 |
} |
| 456 |
return actual; |
| 457 |
} |
| 458 |
|
| 459 |
|
| 460 |
/* |
| 461 |
* Remove file/directory, returns false on error (and sets errno) |
| 462 |
*/ |
| 463 |
|
| 464 |
bool extfs_remove(const char *path) |
| 465 |
{ |
| 466 |
if (remove(path) < 0) { |
| 467 |
if (errno == EISDIR) |
| 468 |
return rmdir(path) == 0; |
| 469 |
else |
| 470 |
return false; |
| 471 |
} |
| 472 |
return true; |
| 473 |
} |
