| 1 |
/* |
| 2 |
* extfs_unix.cpp - MacOS file system for access native file system access, Unix specific stuff |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2001 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 <sys/types.h> |
| 22 |
#include <sys/stat.h> |
| 23 |
#include <stdio.h> |
| 24 |
#include <stdlib.h> |
| 25 |
#include <unistd.h> |
| 26 |
#include <dirent.h> |
| 27 |
#include <errno.h> |
| 28 |
|
| 29 |
#include "sysdeps.h" |
| 30 |
#include "extfs.h" |
| 31 |
#include "extfs_defs.h" |
| 32 |
|
| 33 |
#define DEBUG 0 |
| 34 |
#include "debug.h" |
| 35 |
|
| 36 |
|
| 37 |
// Default Finder flags |
| 38 |
const uint16 DEFAULT_FINDER_FLAGS = kHasBeenInited; |
| 39 |
|
| 40 |
|
| 41 |
/* |
| 42 |
* Initialization |
| 43 |
*/ |
| 44 |
|
| 45 |
void extfs_init(void) |
| 46 |
{ |
| 47 |
} |
| 48 |
|
| 49 |
|
| 50 |
/* |
| 51 |
* Deinitialization |
| 52 |
*/ |
| 53 |
|
| 54 |
void extfs_exit(void) |
| 55 |
{ |
| 56 |
} |
| 57 |
|
| 58 |
|
| 59 |
/* |
| 60 |
* Add component to path name |
| 61 |
*/ |
| 62 |
|
| 63 |
void add_path_component(char *path, const char *component) |
| 64 |
{ |
| 65 |
int l = strlen(path); |
| 66 |
if (l < MAX_PATH_LENGTH-1 && path[l-1] != '/') { |
| 67 |
path[l] = '/'; |
| 68 |
path[l+1] = 0; |
| 69 |
} |
| 70 |
strncat(path, component, MAX_PATH_LENGTH-1); |
| 71 |
} |
| 72 |
|
| 73 |
|
| 74 |
/* |
| 75 |
* Finder info and resource forks are kept in helper files |
| 76 |
* |
| 77 |
* Finder info: |
| 78 |
* /path/.finf/file |
| 79 |
* Resource fork: |
| 80 |
* /path/.rsrc/file |
| 81 |
* |
| 82 |
* The .finf files store a FInfo/DInfo, followed by a FXInfo/DXInfo |
| 83 |
* (16+16 bytes) |
| 84 |
*/ |
| 85 |
|
| 86 |
static void make_helper_path(const char *src, char *dest, const char *add, bool only_dir = false) |
| 87 |
{ |
| 88 |
dest[0] = 0; |
| 89 |
|
| 90 |
// Get pointer to last component of path |
| 91 |
const char *last_part = strrchr(src, '/'); |
| 92 |
if (last_part) |
| 93 |
last_part++; |
| 94 |
else |
| 95 |
last_part = src; |
| 96 |
|
| 97 |
// Copy everything before |
| 98 |
strncpy(dest, src, last_part-src); |
| 99 |
dest[last_part-src] = 0; |
| 100 |
|
| 101 |
// Add additional component |
| 102 |
strncat(dest, add, MAX_PATH_LENGTH-1); |
| 103 |
|
| 104 |
// Add last component |
| 105 |
if (!only_dir) |
| 106 |
strncat(dest, last_part, MAX_PATH_LENGTH-1); |
| 107 |
} |
| 108 |
|
| 109 |
static int create_helper_dir(const char *path, const char *add) |
| 110 |
{ |
| 111 |
char helper_dir[MAX_PATH_LENGTH]; |
| 112 |
make_helper_path(path, helper_dir, add, true); |
| 113 |
if (helper_dir[strlen(helper_dir) - 1] == '/') // Remove trailing "/" |
| 114 |
helper_dir[strlen(helper_dir) - 1] = 0; |
| 115 |
return mkdir(helper_dir, 0777); |
| 116 |
} |
| 117 |
|
| 118 |
static int open_helper(const char *path, const char *add, int flag) |
| 119 |
{ |
| 120 |
char helper_path[MAX_PATH_LENGTH]; |
| 121 |
make_helper_path(path, helper_path, add); |
| 122 |
|
| 123 |
if ((flag & O_ACCMODE) == O_RDWR || (flag & O_ACCMODE) == O_WRONLY) |
| 124 |
flag |= O_CREAT; |
| 125 |
int fd = open(helper_path, flag, 0666); |
| 126 |
if (fd < 0) { |
| 127 |
if (errno == ENOENT && (flag & O_CREAT)) { |
| 128 |
// One path component was missing, probably the helper |
| 129 |
// directory. Try to create it and re-open the file. |
| 130 |
int ret = create_helper_dir(path, add); |
| 131 |
if (ret < 0) |
| 132 |
return ret; |
| 133 |
fd = open(helper_path, flag, 0666); |
| 134 |
} |
| 135 |
} |
| 136 |
return fd; |
| 137 |
} |
| 138 |
|
| 139 |
static int open_finf(const char *path, int flag) |
| 140 |
{ |
| 141 |
return open_helper(path, ".finf/", flag); |
| 142 |
} |
| 143 |
|
| 144 |
static int open_rsrc(const char *path, int flag) |
| 145 |
{ |
| 146 |
return open_helper(path, ".rsrc/", flag); |
| 147 |
} |
| 148 |
|
| 149 |
|
| 150 |
/* |
| 151 |
* Get/set finder info for file/directory specified by full path |
| 152 |
*/ |
| 153 |
|
| 154 |
struct ext2type { |
| 155 |
const char *ext; |
| 156 |
uint32 type; |
| 157 |
uint32 creator; |
| 158 |
}; |
| 159 |
|
| 160 |
static const ext2type e2t_translation[] = { |
| 161 |
{".Z", FOURCC('Z','I','V','M'), FOURCC('L','Z','I','V')}, |
| 162 |
{".gz", FOURCC('G','z','i','p'), FOURCC('G','z','i','p')}, |
| 163 |
{".hqx", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
| 164 |
{".bin", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
| 165 |
{".pdf", FOURCC('P','D','F',' '), FOURCC('C','A','R','O')}, |
| 166 |
{".ps", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')}, |
| 167 |
{".sit", FOURCC('S','I','T','!'), FOURCC('S','I','T','x')}, |
| 168 |
{".tar", FOURCC('T','A','R','F'), FOURCC('T','A','R',' ')}, |
| 169 |
{".uu", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
| 170 |
{".uue", FOURCC('T','E','X','T'), FOURCC('S','I','T','x')}, |
| 171 |
{".zip", FOURCC('Z','I','P',' '), FOURCC('Z','I','P',' ')}, |
| 172 |
{".8svx", FOURCC('8','S','V','X'), FOURCC('S','N','D','M')}, |
| 173 |
{".aifc", FOURCC('A','I','F','C'), FOURCC('T','V','O','D')}, |
| 174 |
{".aiff", FOURCC('A','I','F','F'), FOURCC('T','V','O','D')}, |
| 175 |
{".au", FOURCC('U','L','A','W'), FOURCC('T','V','O','D')}, |
| 176 |
{".mid", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')}, |
| 177 |
{".midi", FOURCC('M','I','D','I'), FOURCC('T','V','O','D')}, |
| 178 |
{".mp2", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')}, |
| 179 |
{".mp3", FOURCC('M','P','G',' '), FOURCC('T','V','O','D')}, |
| 180 |
{".wav", FOURCC('W','A','V','E'), FOURCC('T','V','O','D')}, |
| 181 |
{".bmp", FOURCC('B','M','P','f'), FOURCC('o','g','l','e')}, |
| 182 |
{".gif", FOURCC('G','I','F','f'), FOURCC('o','g','l','e')}, |
| 183 |
{".lbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')}, |
| 184 |
{".ilbm", FOURCC('I','L','B','M'), FOURCC('G','K','O','N')}, |
| 185 |
{".jpg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')}, |
| 186 |
{".jpeg", FOURCC('J','P','E','G'), FOURCC('o','g','l','e')}, |
| 187 |
{".pict", FOURCC('P','I','C','T'), FOURCC('o','g','l','e')}, |
| 188 |
{".png", FOURCC('P','N','G','f'), FOURCC('o','g','l','e')}, |
| 189 |
{".sgi", FOURCC('.','S','G','I'), FOURCC('o','g','l','e')}, |
| 190 |
{".tga", FOURCC('T','P','I','C'), FOURCC('o','g','l','e')}, |
| 191 |
{".tif", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')}, |
| 192 |
{".tiff", FOURCC('T','I','F','F'), FOURCC('o','g','l','e')}, |
| 193 |
{".htm", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')}, |
| 194 |
{".html", FOURCC('T','E','X','T'), FOURCC('M','O','S','S')}, |
| 195 |
{".txt", FOURCC('T','E','X','T'), FOURCC('t','t','x','t')}, |
| 196 |
{".rtf", FOURCC('T','E','X','T'), FOURCC('M','S','W','D')}, |
| 197 |
{".c", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 198 |
{".C", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 199 |
{".cc", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 200 |
{".cpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 201 |
{".cxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 202 |
{".h", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 203 |
{".hh", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 204 |
{".hpp", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 205 |
{".hxx", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 206 |
{".s", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 207 |
{".S", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 208 |
{".i", FOURCC('T','E','X','T'), FOURCC('R','*','c','h')}, |
| 209 |
{".mpg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')}, |
| 210 |
{".mpeg", FOURCC('M','P','E','G'), FOURCC('T','V','O','D')}, |
| 211 |
{".mov", FOURCC('M','o','o','V'), FOURCC('T','V','O','D')}, |
| 212 |
{".fli", FOURCC('F','L','I',' '), FOURCC('T','V','O','D')}, |
| 213 |
{".avi", FOURCC('V','f','W',' '), FOURCC('T','V','O','D')}, |
| 214 |
{".qxd", FOURCC('X','D','O','C'), FOURCC('X','P','R','3')}, |
| 215 |
{".hfv", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')}, |
| 216 |
{".dsk", FOURCC('D','D','i','m'), FOURCC('d','d','s','k')}, |
| 217 |
{".img", FOURCC('r','o','h','d'), FOURCC('d','d','s','k')}, |
| 218 |
{NULL, 0, 0} // End marker |
| 219 |
}; |
| 220 |
|
| 221 |
void get_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir) |
| 222 |
{ |
| 223 |
// Set default finder info |
| 224 |
Mac_memset(finfo, 0, SIZEOF_FInfo); |
| 225 |
if (fxinfo) |
| 226 |
Mac_memset(fxinfo, 0, SIZEOF_FXInfo); |
| 227 |
WriteMacInt16(finfo + fdFlags, DEFAULT_FINDER_FLAGS); |
| 228 |
WriteMacInt32(finfo + fdLocation, (uint32)-1); |
| 229 |
|
| 230 |
// Read Finder info file |
| 231 |
int fd = open_finf(path, O_RDONLY); |
| 232 |
if (fd >= 0) { |
| 233 |
ssize_t actual = read(fd, Mac2HostAddr(finfo), SIZEOF_FInfo); |
| 234 |
if (fxinfo) |
| 235 |
actual += read(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo); |
| 236 |
close(fd); |
| 237 |
if (actual >= SIZEOF_FInfo) |
| 238 |
return; |
| 239 |
} |
| 240 |
|
| 241 |
// No Finder info file, translate file name extension to MacOS type/creator |
| 242 |
if (!is_dir) { |
| 243 |
int path_len = strlen(path); |
| 244 |
for (int i=0; e2t_translation[i].ext; i++) { |
| 245 |
int ext_len = strlen(e2t_translation[i].ext); |
| 246 |
if (path_len < ext_len) |
| 247 |
continue; |
| 248 |
if (!strcmp(path + path_len - ext_len, e2t_translation[i].ext)) { |
| 249 |
WriteMacInt32(finfo + fdType, e2t_translation[i].type); |
| 250 |
WriteMacInt32(finfo + fdCreator, e2t_translation[i].creator); |
| 251 |
break; |
| 252 |
} |
| 253 |
} |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
void set_finfo(const char *path, uint32 finfo, uint32 fxinfo, bool is_dir) |
| 258 |
{ |
| 259 |
// Open Finder info file |
| 260 |
int fd = open_finf(path, O_RDWR); |
| 261 |
if (fd < 0) |
| 262 |
return; |
| 263 |
|
| 264 |
// Write file |
| 265 |
write(fd, Mac2HostAddr(finfo), SIZEOF_FInfo); |
| 266 |
if (fxinfo) |
| 267 |
write(fd, Mac2HostAddr(fxinfo), SIZEOF_FXInfo); |
| 268 |
close(fd); |
| 269 |
} |
| 270 |
|
| 271 |
|
| 272 |
/* |
| 273 |
* Resource fork emulation functions |
| 274 |
*/ |
| 275 |
|
| 276 |
uint32 get_rfork_size(const char *path) |
| 277 |
{ |
| 278 |
// Open resource file |
| 279 |
int fd = open_rsrc(path, O_RDONLY); |
| 280 |
if (fd < 0) |
| 281 |
return 0; |
| 282 |
|
| 283 |
// Get size |
| 284 |
off_t size = lseek(fd, 0, SEEK_END); |
| 285 |
|
| 286 |
// Close file and return size |
| 287 |
close(fd); |
| 288 |
return size < 0 ? 0 : size; |
| 289 |
} |
| 290 |
|
| 291 |
int open_rfork(const char *path, int flag) |
| 292 |
{ |
| 293 |
return open_rsrc(path, flag); |
| 294 |
} |
| 295 |
|
| 296 |
void close_rfork(const char *path, int fd) |
| 297 |
{ |
| 298 |
close(fd); |
| 299 |
} |
| 300 |
|
| 301 |
|
| 302 |
/* |
| 303 |
* Read "length" bytes from file to "buffer", |
| 304 |
* returns number of bytes read (or -1 on error) |
| 305 |
*/ |
| 306 |
|
| 307 |
ssize_t extfs_read(int fd, void *buffer, size_t length) |
| 308 |
{ |
| 309 |
return read(fd, buffer, length); |
| 310 |
} |
| 311 |
|
| 312 |
|
| 313 |
/* |
| 314 |
* Write "length" bytes from "buffer" to file, |
| 315 |
* returns number of bytes written (or -1 on error) |
| 316 |
*/ |
| 317 |
|
| 318 |
ssize_t extfs_write(int fd, void *buffer, size_t length) |
| 319 |
{ |
| 320 |
return write(fd, buffer, length); |
| 321 |
} |
| 322 |
|
| 323 |
|
| 324 |
/* |
| 325 |
* Remove file/directory (and associated helper files), |
| 326 |
* returns false on error (and sets errno) |
| 327 |
*/ |
| 328 |
|
| 329 |
bool extfs_remove(const char *path) |
| 330 |
{ |
| 331 |
// Remove helpers first, don't complain if this fails |
| 332 |
char helper_path[MAX_PATH_LENGTH]; |
| 333 |
make_helper_path(path, helper_path, ".finf/", false); |
| 334 |
remove(helper_path); |
| 335 |
make_helper_path(path, helper_path, ".rsrc/", false); |
| 336 |
remove(helper_path); |
| 337 |
|
| 338 |
// Now remove file or directory (and helper directories in the directory) |
| 339 |
if (remove(path) < 0) { |
| 340 |
if (errno == EISDIR || errno == ENOTEMPTY) { |
| 341 |
helper_path[0] = 0; |
| 342 |
strncpy(helper_path, path, MAX_PATH_LENGTH-1); |
| 343 |
add_path_component(helper_path, ".finf"); |
| 344 |
rmdir(helper_path); |
| 345 |
helper_path[0] = 0; |
| 346 |
strncpy(helper_path, path, MAX_PATH_LENGTH-1); |
| 347 |
add_path_component(helper_path, ".rsrc"); |
| 348 |
rmdir(helper_path); |
| 349 |
return rmdir(path) == 0; |
| 350 |
} else |
| 351 |
return false; |
| 352 |
} |
| 353 |
return true; |
| 354 |
} |
| 355 |
|
| 356 |
|
| 357 |
/* |
| 358 |
* Rename/move file/directory (and associated helper files), |
| 359 |
* returns false on error (and sets errno) |
| 360 |
*/ |
| 361 |
|
| 362 |
bool extfs_rename(const char *old_path, const char *new_path) |
| 363 |
{ |
| 364 |
// Rename helpers first, don't complain if this fails |
| 365 |
char old_helper_path[MAX_PATH_LENGTH], new_helper_path[MAX_PATH_LENGTH]; |
| 366 |
make_helper_path(old_path, old_helper_path, ".finf/", false); |
| 367 |
make_helper_path(new_path, new_helper_path, ".finf/", false); |
| 368 |
create_helper_dir(new_path, ".finf/"); |
| 369 |
rename(old_helper_path, new_helper_path); |
| 370 |
make_helper_path(old_path, old_helper_path, ".rsrc/", false); |
| 371 |
make_helper_path(new_path, new_helper_path, ".rsrc/", false); |
| 372 |
create_helper_dir(new_path, ".rsrc/"); |
| 373 |
rename(old_helper_path, new_helper_path); |
| 374 |
|
| 375 |
// Now rename file |
| 376 |
return rename(old_path, new_path) == 0; |
| 377 |
} |
