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Commit | Line | Data |
---|---|---|
bbccc6f3 AD |
1 | /* |
2 | * create_inode.c --- create an inode | |
3 | * | |
4 | * Copyright (C) 2014 Robert Yang <liezhi.yang@windriver.com> | |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU library | |
8 | * General Public License, version 2. | |
9 | * %End-Header% | |
10 | */ | |
11 | ||
76f13234 DW |
12 | #define _FILE_OFFSET_BITS 64 |
13 | #define _LARGEFILE64_SOURCE 1 | |
14 | #define _GNU_SOURCE 1 | |
15 | ||
16 | #include "config.h" | |
8f8d8a57 | 17 | #include <time.h> |
0a3d8041 | 18 | #include <sys/stat.h> |
76f13234 | 19 | #include <sys/types.h> |
8f8d8a57 | 20 | #include <unistd.h> |
bbccc6f3 | 21 | #include <limits.h> /* for PATH_MAX */ |
f6f4b4b3 | 22 | #include <dirent.h> /* for scandir() and alphasort() */ |
d7de3f3d DL |
23 | #if defined HAVE_SYS_XATTR_H |
24 | #include <sys/xattr.h> | |
25 | #elif defined HAVE_ATTR_XATTR_H | |
c84da2ee RB |
26 | #include <attr/xattr.h> |
27 | #endif | |
0a3d8041 | 28 | #ifdef HAVE_SYS_IOCTL_H |
76f13234 | 29 | #include <sys/ioctl.h> |
0a3d8041 | 30 | #endif |
3fb715b5 MF |
31 | #ifdef HAVE_SYS_SYSMACROS_H |
32 | #include <sys/sysmacros.h> | |
33 | #endif | |
34 | ||
76f13234 DW |
35 | #include <ext2fs/ext2fs.h> |
36 | #include <ext2fs/ext2_types.h> | |
37 | #include <ext2fs/fiemap.h> | |
8f8d8a57 | 38 | |
0d4deba2 | 39 | #include "create_inode.h" |
99ceb8ec | 40 | #include "support/nls-enable.h" |
0d4deba2 | 41 | |
055866d8 | 42 | /* 64KiB is the minimum blksize to best minimize system call overhead. */ |
76f13234 | 43 | #define COPY_FILE_BUFLEN 65536 |
ce600dc4 | 44 | |
a433db04 DW |
45 | static int ext2_file_type(unsigned int mode) |
46 | { | |
47 | if (LINUX_S_ISREG(mode)) | |
48 | return EXT2_FT_REG_FILE; | |
49 | ||
50 | if (LINUX_S_ISDIR(mode)) | |
51 | return EXT2_FT_DIR; | |
52 | ||
53 | if (LINUX_S_ISCHR(mode)) | |
54 | return EXT2_FT_CHRDEV; | |
55 | ||
56 | if (LINUX_S_ISBLK(mode)) | |
57 | return EXT2_FT_BLKDEV; | |
58 | ||
59 | if (LINUX_S_ISLNK(mode)) | |
60 | return EXT2_FT_SYMLINK; | |
61 | ||
62 | if (LINUX_S_ISFIFO(mode)) | |
63 | return EXT2_FT_FIFO; | |
64 | ||
65 | if (LINUX_S_ISSOCK(mode)) | |
66 | return EXT2_FT_SOCK; | |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
f84894bc | 71 | /* Link an inode number to a directory */ |
a3111e80 DW |
72 | static errcode_t add_link(ext2_filsys fs, ext2_ino_t parent_ino, |
73 | ext2_ino_t ino, const char *name) | |
f84894bc RY |
74 | { |
75 | struct ext2_inode inode; | |
76 | errcode_t retval; | |
77 | ||
a3111e80 | 78 | retval = ext2fs_read_inode(fs, ino, &inode); |
f84894bc | 79 | if (retval) { |
b04af4fe | 80 | com_err(__func__, retval, _("while reading inode %u"), ino); |
f84894bc RY |
81 | return retval; |
82 | } | |
83 | ||
a433db04 DW |
84 | retval = ext2fs_link(fs, parent_ino, name, ino, |
85 | ext2_file_type(inode.i_mode)); | |
f84894bc | 86 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
a3111e80 | 87 | retval = ext2fs_expand_dir(fs, parent_ino); |
f84894bc | 88 | if (retval) { |
b04af4fe DW |
89 | com_err(__func__, retval, |
90 | _("while expanding directory")); | |
f84894bc RY |
91 | return retval; |
92 | } | |
a433db04 DW |
93 | retval = ext2fs_link(fs, parent_ino, name, ino, |
94 | ext2_file_type(inode.i_mode)); | |
f84894bc RY |
95 | } |
96 | if (retval) { | |
b04af4fe | 97 | com_err(__func__, retval, _("while linking \"%s\""), name); |
f84894bc RY |
98 | return retval; |
99 | } | |
100 | ||
101 | inode.i_links_count++; | |
102 | ||
a3111e80 | 103 | retval = ext2fs_write_inode(fs, ino, &inode); |
f84894bc | 104 | if (retval) |
b04af4fe | 105 | com_err(__func__, retval, _("while writing inode %u"), ino); |
f84894bc RY |
106 | |
107 | return retval; | |
108 | } | |
109 | ||
b6960654 | 110 | /* Set the uid, gid, mode and time for the inode */ |
25f291c9 TT |
111 | static errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t ino, |
112 | struct stat *st) | |
b6960654 RY |
113 | { |
114 | errcode_t retval; | |
115 | struct ext2_inode inode; | |
116 | ||
a3111e80 | 117 | retval = ext2fs_read_inode(fs, ino, &inode); |
b6960654 | 118 | if (retval) { |
b04af4fe | 119 | com_err(__func__, retval, _("while reading inode %u"), ino); |
b6960654 RY |
120 | return retval; |
121 | } | |
122 | ||
b04af4fe | 123 | inode.i_uid = st->st_uid; |
23f94dde | 124 | ext2fs_set_i_uid_high(inode, st->st_uid >> 16); |
b04af4fe | 125 | inode.i_gid = st->st_gid; |
23f94dde | 126 | ext2fs_set_i_gid_high(inode, st->st_gid >> 16); |
f106b01c | 127 | inode.i_mode = (LINUX_S_IFMT & inode.i_mode) | (~S_IFMT & st->st_mode); |
b04af4fe DW |
128 | inode.i_atime = st->st_atime; |
129 | inode.i_mtime = st->st_mtime; | |
130 | inode.i_ctime = st->st_ctime; | |
b6960654 | 131 | |
a3111e80 | 132 | retval = ext2fs_write_inode(fs, ino, &inode); |
3aec816f | 133 | if (retval) |
b04af4fe | 134 | com_err(__func__, retval, _("while writing inode %u"), ino); |
3aec816f | 135 | return retval; |
b6960654 RY |
136 | } |
137 | ||
25f291c9 | 138 | #ifdef HAVE_LLISTXATTR |
b04af4fe DW |
139 | static errcode_t set_inode_xattr(ext2_filsys fs, ext2_ino_t ino, |
140 | const char *filename) | |
c84da2ee | 141 | { |
c84da2ee | 142 | errcode_t retval, close_retval; |
c84da2ee RB |
143 | struct ext2_xattr_handle *handle; |
144 | ssize_t size, value_size; | |
76f13234 | 145 | char *list = NULL; |
c84da2ee RB |
146 | int i; |
147 | ||
8cec4acd TT |
148 | if (no_copy_xattrs) |
149 | return 0; | |
150 | ||
c84da2ee RB |
151 | size = llistxattr(filename, NULL, 0); |
152 | if (size == -1) { | |
b04af4fe DW |
153 | retval = errno; |
154 | com_err(__func__, retval, _("while listing attributes of \"%s\""), | |
155 | filename); | |
156 | return retval; | |
c84da2ee RB |
157 | } else if (size == 0) { |
158 | return 0; | |
159 | } | |
160 | ||
161 | retval = ext2fs_xattrs_open(fs, ino, &handle); | |
162 | if (retval) { | |
163 | if (retval == EXT2_ET_MISSING_EA_FEATURE) | |
164 | return 0; | |
b04af4fe | 165 | com_err(__func__, retval, _("while opening inode %u"), ino); |
c84da2ee RB |
166 | return retval; |
167 | } | |
168 | ||
169 | retval = ext2fs_get_mem(size, &list); | |
170 | if (retval) { | |
b04af4fe | 171 | com_err(__func__, retval, _("while allocating memory")); |
c84da2ee RB |
172 | goto out; |
173 | } | |
174 | ||
175 | size = llistxattr(filename, list, size); | |
176 | if (size == -1) { | |
c84da2ee | 177 | retval = errno; |
b04af4fe DW |
178 | com_err(__func__, retval, _("while listing attributes of \"%s\""), |
179 | filename); | |
c84da2ee RB |
180 | goto out; |
181 | } | |
182 | ||
183 | for (i = 0; i < size; i += strlen(&list[i]) + 1) { | |
184 | const char *name = &list[i]; | |
185 | char *value; | |
186 | ||
344c043b | 187 | value_size = lgetxattr(filename, name, NULL, 0); |
c84da2ee | 188 | if (value_size == -1) { |
c84da2ee | 189 | retval = errno; |
b04af4fe DW |
190 | com_err(__func__, retval, |
191 | _("while reading attribute \"%s\" of \"%s\""), | |
192 | name, filename); | |
c84da2ee RB |
193 | break; |
194 | } | |
195 | ||
196 | retval = ext2fs_get_mem(value_size, &value); | |
197 | if (retval) { | |
b04af4fe | 198 | com_err(__func__, retval, _("while allocating memory")); |
c84da2ee RB |
199 | break; |
200 | } | |
201 | ||
344c043b | 202 | value_size = lgetxattr(filename, name, value, value_size); |
c84da2ee RB |
203 | if (value_size == -1) { |
204 | ext2fs_free_mem(&value); | |
c84da2ee | 205 | retval = errno; |
b04af4fe DW |
206 | com_err(__func__, retval, |
207 | _("while reading attribute \"%s\" of \"%s\""), | |
208 | name, filename); | |
c84da2ee RB |
209 | break; |
210 | } | |
211 | ||
212 | retval = ext2fs_xattr_set(handle, name, value, value_size); | |
213 | ext2fs_free_mem(&value); | |
214 | if (retval) { | |
215 | com_err(__func__, retval, | |
b04af4fe DW |
216 | _("while writing attribute \"%s\" to inode %u"), |
217 | name, ino); | |
c84da2ee RB |
218 | break; |
219 | } | |
220 | ||
221 | } | |
222 | out: | |
223 | ext2fs_free_mem(&list); | |
224 | close_retval = ext2fs_xattrs_close(&handle); | |
225 | if (close_retval) { | |
b04af4fe | 226 | com_err(__func__, retval, _("while closing inode %u"), ino); |
c84da2ee RB |
227 | retval = retval ? retval : close_retval; |
228 | } | |
229 | return retval; | |
25f291c9 TT |
230 | return 0; |
231 | } | |
c84da2ee | 232 | #else /* HAVE_LLISTXATTR */ |
25f291c9 TT |
233 | static errcode_t set_inode_xattr(ext2_filsys fs EXT2FS_ATTR((unused)), |
234 | ext2_ino_t ino EXT2FS_ATTR((unused)), | |
235 | const char *filename EXT2FS_ATTR((unused))) | |
236 | { | |
c84da2ee | 237 | return 0; |
c84da2ee | 238 | } |
25f291c9 | 239 | #endif /* HAVE_LLISTXATTR */ |
c84da2ee | 240 | |
0a3d8041 | 241 | #ifndef _WIN32 |
c61e0068 | 242 | /* Make a special files (block and character devices), fifo's, and sockets */ |
a3111e80 | 243 | errcode_t do_mknod_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name, |
47e61052 | 244 | unsigned int st_mode, unsigned int st_rdev) |
0d4deba2 | 245 | { |
b2346118 | 246 | ext2_ino_t ino; |
3cbb51f9 | 247 | errcode_t retval; |
b2346118 | 248 | struct ext2_inode inode; |
3cbb51f9 | 249 | unsigned long devmajor, devminor, mode; |
b2346118 RY |
250 | int filetype; |
251 | ||
47e61052 | 252 | switch(st_mode & S_IFMT) { |
9c891f7e DW |
253 | case S_IFCHR: |
254 | mode = LINUX_S_IFCHR; | |
255 | filetype = EXT2_FT_CHRDEV; | |
256 | break; | |
257 | case S_IFBLK: | |
258 | mode = LINUX_S_IFBLK; | |
259 | filetype = EXT2_FT_BLKDEV; | |
260 | break; | |
261 | case S_IFIFO: | |
262 | mode = LINUX_S_IFIFO; | |
263 | filetype = EXT2_FT_FIFO; | |
264 | break; | |
0a3d8041 | 265 | #ifndef _WIN32 |
c61e0068 DW |
266 | case S_IFSOCK: |
267 | mode = LINUX_S_IFSOCK; | |
268 | filetype = EXT2_FT_SOCK; | |
ec3a42b1 | 269 | break; |
0a3d8041 | 270 | #endif |
3aec816f | 271 | default: |
ec3a42b1 | 272 | return EXT2_ET_INVALID_ARGUMENT; |
b2346118 RY |
273 | } |
274 | ||
a3111e80 | 275 | retval = ext2fs_new_inode(fs, cwd, 010755, 0, &ino); |
b2346118 | 276 | if (retval) { |
b04af4fe DW |
277 | com_err(__func__, retval, _("while allocating inode \"%s\""), |
278 | name); | |
b2346118 RY |
279 | return retval; |
280 | } | |
281 | ||
282 | #ifdef DEBUGFS | |
283 | printf("Allocated inode: %u\n", ino); | |
284 | #endif | |
a3111e80 | 285 | retval = ext2fs_link(fs, cwd, name, ino, filetype); |
b2346118 | 286 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
a3111e80 | 287 | retval = ext2fs_expand_dir(fs, cwd); |
b2346118 | 288 | if (retval) { |
b04af4fe DW |
289 | com_err(__func__, retval, |
290 | _("while expanding directory")); | |
b2346118 RY |
291 | return retval; |
292 | } | |
a3111e80 | 293 | retval = ext2fs_link(fs, cwd, name, ino, filetype); |
b2346118 RY |
294 | } |
295 | if (retval) { | |
b04af4fe | 296 | com_err(name, retval, _("while creating inode \"%s\""), name); |
ec3a42b1 | 297 | return retval; |
b2346118 | 298 | } |
a3111e80 | 299 | if (ext2fs_test_inode_bitmap2(fs->inode_map, ino)) |
b2346118 | 300 | com_err(__func__, 0, "Warning: inode already set"); |
a3111e80 | 301 | ext2fs_inode_alloc_stats2(fs, ino, +1, 0); |
b2346118 RY |
302 | memset(&inode, 0, sizeof(inode)); |
303 | inode.i_mode = mode; | |
304 | inode.i_atime = inode.i_ctime = inode.i_mtime = | |
a3111e80 | 305 | fs->now ? fs->now : time(0); |
b2346118 | 306 | |
3cbb51f9 | 307 | if (filetype != S_IFIFO) { |
47e61052 TT |
308 | devmajor = major(st_rdev); |
309 | devminor = minor(st_rdev); | |
3cbb51f9 AD |
310 | |
311 | if ((devmajor < 256) && (devminor < 256)) { | |
312 | inode.i_block[0] = devmajor * 256 + devminor; | |
313 | inode.i_block[1] = 0; | |
314 | } else { | |
315 | inode.i_block[0] = 0; | |
316 | inode.i_block[1] = (devminor & 0xff) | (devmajor << 8) | | |
317 | ((devminor & ~0xff) << 12); | |
318 | } | |
b2346118 RY |
319 | } |
320 | inode.i_links_count = 1; | |
321 | ||
a3111e80 | 322 | retval = ext2fs_write_new_inode(fs, ino, &inode); |
b2346118 | 323 | if (retval) |
b04af4fe | 324 | com_err(__func__, retval, _("while writing inode %u"), ino); |
b2346118 RY |
325 | |
326 | return retval; | |
0d4deba2 | 327 | } |
0a3d8041 | 328 | #endif |
0d4deba2 RY |
329 | |
330 | /* Make a symlink name -> target */ | |
a3111e80 DW |
331 | errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name, |
332 | char *target, ext2_ino_t root) | |
0d4deba2 | 333 | { |
b25ddc5e RY |
334 | char *cp; |
335 | ext2_ino_t parent_ino; | |
336 | errcode_t retval; | |
b25ddc5e RY |
337 | |
338 | cp = strrchr(name, '/'); | |
339 | if (cp) { | |
340 | *cp = 0; | |
a3111e80 | 341 | retval = ext2fs_namei(fs, root, cwd, name, &parent_ino); |
8f8d8a57 | 342 | if (retval) { |
b25ddc5e RY |
343 | com_err(name, retval, 0); |
344 | return retval; | |
345 | } | |
346 | name = cp+1; | |
347 | } else | |
348 | parent_ino = cwd; | |
349 | ||
a3111e80 | 350 | retval = ext2fs_symlink(fs, parent_ino, 0, name, target); |
b25ddc5e | 351 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
a3111e80 | 352 | retval = ext2fs_expand_dir(fs, parent_ino); |
b25ddc5e | 353 | if (retval) { |
9c891f7e | 354 | com_err("do_symlink_internal", retval, |
b04af4fe | 355 | _("while expanding directory")); |
b25ddc5e RY |
356 | return retval; |
357 | } | |
b04af4fe | 358 | retval = ext2fs_symlink(fs, parent_ino, 0, name, target); |
b25ddc5e | 359 | } |
3aec816f | 360 | if (retval) |
b04af4fe DW |
361 | com_err("ext2fs_symlink", retval, |
362 | _("while creating symlink \"%s\""), name); | |
3aec816f | 363 | return retval; |
0d4deba2 RY |
364 | } |
365 | ||
366 | /* Make a directory in the fs */ | |
a3111e80 | 367 | errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name, |
25f291c9 | 368 | ext2_ino_t root) |
0d4deba2 | 369 | { |
3068f03f | 370 | char *cp; |
c4c9bc59 | 371 | ext2_ino_t parent_ino; |
3068f03f | 372 | errcode_t retval; |
3068f03f RY |
373 | |
374 | ||
375 | cp = strrchr(name, '/'); | |
376 | if (cp) { | |
377 | *cp = 0; | |
a3111e80 | 378 | retval = ext2fs_namei(fs, root, cwd, name, &parent_ino); |
8f8d8a57 | 379 | if (retval) { |
b04af4fe DW |
380 | com_err(name, retval, _("while looking up \"%s\""), |
381 | name); | |
3068f03f RY |
382 | return retval; |
383 | } | |
384 | name = cp+1; | |
385 | } else | |
386 | parent_ino = cwd; | |
387 | ||
a3111e80 | 388 | retval = ext2fs_mkdir(fs, parent_ino, 0, name); |
3068f03f | 389 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
a3111e80 | 390 | retval = ext2fs_expand_dir(fs, parent_ino); |
3068f03f | 391 | if (retval) { |
b04af4fe DW |
392 | com_err(__func__, retval, |
393 | _("while expanding directory")); | |
3068f03f RY |
394 | return retval; |
395 | } | |
b04af4fe | 396 | retval = ext2fs_mkdir(fs, parent_ino, 0, name); |
3068f03f | 397 | } |
3aec816f | 398 | if (retval) |
b04af4fe DW |
399 | com_err("ext2fs_mkdir", retval, |
400 | _("while creating directory \"%s\""), name); | |
3aec816f | 401 | return retval; |
0d4deba2 RY |
402 | } |
403 | ||
76f13234 | 404 | #if !defined HAVE_PREAD64 && !defined HAVE_PREAD |
f7134a9e | 405 | static ssize_t my_pread(int fd, void *buf, size_t count, off_t offset) |
ce600dc4 | 406 | { |
76f13234 DW |
407 | if (lseek(fd, offset, SEEK_SET) < 0) |
408 | return 0; | |
ce600dc4 | 409 | |
76f13234 DW |
410 | return read(fd, buf, count); |
411 | } | |
412 | #endif /* !defined HAVE_PREAD64 && !defined HAVE_PREAD */ | |
ce600dc4 | 413 | |
01551bdb | 414 | static errcode_t copy_file_chunk(ext2_filsys fs, int fd, ext2_file_t e2_file, |
76f13234 DW |
415 | off_t start, off_t end, char *buf, |
416 | char *zerobuf) | |
417 | { | |
418 | off_t off, bpos; | |
419 | ssize_t got, blen; | |
420 | unsigned int written; | |
421 | char *ptr; | |
422 | errcode_t err = 0; | |
423 | ||
424 | for (off = start; off < end; off += COPY_FILE_BUFLEN) { | |
425 | #ifdef HAVE_PREAD64 | |
426 | got = pread64(fd, buf, COPY_FILE_BUFLEN, off); | |
427 | #elif HAVE_PREAD | |
428 | got = pread(fd, buf, COPY_FILE_BUFLEN, off); | |
429 | #else | |
430 | got = my_pread(fd, buf, COPY_FILE_BUFLEN, off); | |
431 | #endif | |
ce600dc4 | 432 | if (got < 0) { |
76f13234 | 433 | err = errno; |
ce600dc4 RY |
434 | goto fail; |
435 | } | |
76f13234 DW |
436 | for (bpos = 0, ptr = buf; bpos < got; bpos += fs->blocksize) { |
437 | blen = fs->blocksize; | |
438 | if (blen > got - bpos) | |
439 | blen = got - bpos; | |
440 | if (memcmp(ptr, zerobuf, blen) == 0) { | |
441 | ptr += blen; | |
442 | continue; | |
443 | } | |
1eec7413 | 444 | err = ext2fs_file_llseek(e2_file, off + bpos, |
66bae937 | 445 | EXT2_SEEK_SET, NULL); |
76f13234 DW |
446 | if (err) |
447 | goto fail; | |
448 | while (blen > 0) { | |
449 | err = ext2fs_file_write(e2_file, ptr, blen, | |
450 | &written); | |
451 | if (err) | |
452 | goto fail; | |
453 | if (written == 0) { | |
454 | err = EIO; | |
ce600dc4 | 455 | goto fail; |
76f13234 DW |
456 | } |
457 | blen -= written; | |
458 | ptr += written; | |
ce600dc4 RY |
459 | } |
460 | } | |
76f13234 DW |
461 | } |
462 | fail: | |
463 | return err; | |
464 | } | |
ce600dc4 | 465 | |
478360f5 | 466 | #if defined(SEEK_DATA) && defined(SEEK_HOLE) |
76f13234 DW |
467 | static errcode_t try_lseek_copy(ext2_filsys fs, int fd, struct stat *statbuf, |
468 | ext2_file_t e2_file, char *buf, char *zerobuf) | |
469 | { | |
76f13234 DW |
470 | off_t data = 0, hole; |
471 | off_t data_blk, hole_blk; | |
c2c5c585 | 472 | errcode_t err = 0; |
76f13234 DW |
473 | |
474 | /* Try to use SEEK_DATA and SEEK_HOLE */ | |
475 | while (data < statbuf->st_size) { | |
476 | data = lseek(fd, data, SEEK_DATA); | |
477 | if (data < 0) { | |
478 | if (errno == ENXIO) | |
479 | break; | |
480 | return EXT2_ET_UNIMPLEMENTED; | |
ce600dc4 | 481 | } |
76f13234 DW |
482 | hole = lseek(fd, data, SEEK_HOLE); |
483 | if (hole < 0) | |
484 | return EXT2_ET_UNIMPLEMENTED; | |
485 | ||
1eec7413 | 486 | data_blk = data & ~(off_t)(fs->blocksize - 1); |
66bae937 CL |
487 | hole_blk = ((hole + (off_t)(fs->blocksize - 1)) & |
488 | ~(off_t)(fs->blocksize - 1)); | |
01551bdb | 489 | err = copy_file_chunk(fs, fd, e2_file, data_blk, hole_blk, buf, |
76f13234 DW |
490 | zerobuf); |
491 | if (err) | |
492 | return err; | |
493 | ||
494 | data = hole; | |
ce600dc4 | 495 | } |
ce600dc4 | 496 | |
76f13234 | 497 | return err; |
76f13234 | 498 | } |
478360f5 | 499 | #endif /* SEEK_DATA and SEEK_HOLE */ |
76f13234 | 500 | |
478360f5 | 501 | #if defined(FS_IOC_FIEMAP) |
76f13234 DW |
502 | static errcode_t try_fiemap_copy(ext2_filsys fs, int fd, ext2_file_t e2_file, |
503 | char *buf, char *zerobuf) | |
504 | { | |
76f13234 DW |
505 | #define EXTENT_MAX_COUNT 512 |
506 | struct fiemap *fiemap_buf; | |
507 | struct fiemap_extent *ext_buf, *ext; | |
508 | int ext_buf_size, fie_buf_size; | |
509 | off_t pos = 0; | |
510 | unsigned int i; | |
511 | errcode_t err; | |
512 | ||
513 | ext_buf_size = EXTENT_MAX_COUNT * sizeof(struct fiemap_extent); | |
514 | fie_buf_size = sizeof(struct fiemap) + ext_buf_size; | |
515 | ||
516 | err = ext2fs_get_memzero(fie_buf_size, &fiemap_buf); | |
517 | if (err) | |
518 | return err; | |
519 | ||
520 | ext_buf = fiemap_buf->fm_extents; | |
521 | memset(fiemap_buf, 0, fie_buf_size); | |
522 | fiemap_buf->fm_length = FIEMAP_MAX_OFFSET; | |
523 | fiemap_buf->fm_flags |= FIEMAP_FLAG_SYNC; | |
524 | fiemap_buf->fm_extent_count = EXTENT_MAX_COUNT; | |
525 | ||
526 | do { | |
527 | fiemap_buf->fm_start = pos; | |
528 | memset(ext_buf, 0, ext_buf_size); | |
529 | err = ioctl(fd, FS_IOC_FIEMAP, fiemap_buf); | |
530 | if (err < 0 && (errno == EOPNOTSUPP || errno == ENOTTY)) { | |
531 | err = EXT2_ET_UNIMPLEMENTED; | |
532 | goto out; | |
75a79045 | 533 | } else if (err < 0) { |
76f13234 DW |
534 | err = errno; |
535 | goto out; | |
75a79045 AB |
536 | } else if (fiemap_buf->fm_mapped_extents == 0) |
537 | goto out; | |
76f13234 DW |
538 | for (i = 0, ext = ext_buf; i < fiemap_buf->fm_mapped_extents; |
539 | i++, ext++) { | |
01551bdb | 540 | err = copy_file_chunk(fs, fd, e2_file, ext->fe_logical, |
76f13234 DW |
541 | ext->fe_logical + ext->fe_length, |
542 | buf, zerobuf); | |
543 | if (err) | |
544 | goto out; | |
545 | } | |
546 | ||
547 | ext--; | |
548 | /* Record file's logical offset this time */ | |
549 | pos = ext->fe_logical + ext->fe_length; | |
550 | /* | |
551 | * If fm_extents array has been filled and | |
552 | * there are extents left, continue to cycle. | |
553 | */ | |
554 | } while (fiemap_buf->fm_mapped_extents == EXTENT_MAX_COUNT && | |
555 | !(ext->fe_flags & FIEMAP_EXTENT_LAST)); | |
556 | out: | |
557 | ext2fs_free_mem(&fiemap_buf); | |
558 | return err; | |
76f13234 | 559 | } |
478360f5 | 560 | #endif /* FS_IOC_FIEMAP */ |
76f13234 DW |
561 | |
562 | static errcode_t copy_file(ext2_filsys fs, int fd, struct stat *statbuf, | |
563 | ext2_ino_t ino) | |
564 | { | |
565 | ext2_file_t e2_file; | |
566 | char *buf = NULL, *zerobuf = NULL; | |
567 | errcode_t err, close_err; | |
568 | ||
569 | err = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file); | |
570 | if (err) | |
571 | return err; | |
572 | ||
573 | err = ext2fs_get_mem(COPY_FILE_BUFLEN, &buf); | |
574 | if (err) | |
575 | goto out; | |
576 | ||
577 | err = ext2fs_get_memzero(fs->blocksize, &zerobuf); | |
578 | if (err) | |
579 | goto out; | |
580 | ||
478360f5 | 581 | #if defined(SEEK_DATA) && defined(SEEK_HOLE) |
76f13234 DW |
582 | err = try_lseek_copy(fs, fd, statbuf, e2_file, buf, zerobuf); |
583 | if (err != EXT2_ET_UNIMPLEMENTED) | |
584 | goto out; | |
478360f5 | 585 | #endif |
76f13234 | 586 | |
478360f5 | 587 | #if defined(FS_IOC_FIEMAP) |
76f13234 DW |
588 | err = try_fiemap_copy(fs, fd, e2_file, buf, zerobuf); |
589 | if (err != EXT2_ET_UNIMPLEMENTED) | |
590 | goto out; | |
478360f5 | 591 | #endif |
76f13234 | 592 | |
01551bdb | 593 | err = copy_file_chunk(fs, fd, e2_file, 0, statbuf->st_size, buf, |
76f13234 DW |
594 | zerobuf); |
595 | out: | |
596 | ext2fs_free_mem(&zerobuf); | |
6bb88459 | 597 | ext2fs_free_mem(&buf); |
76f13234 DW |
598 | close_err = ext2fs_file_close(e2_file); |
599 | if (err == 0) | |
600 | err = close_err; | |
601 | return err; | |
ce600dc4 RY |
602 | } |
603 | ||
4baaa1fc | 604 | static int is_hardlink(struct hdlinks_s *hdlinks, dev_t dev, ino_t ino) |
f84894bc RY |
605 | { |
606 | int i; | |
607 | ||
b99888a0 DW |
608 | for (i = 0; i < hdlinks->count; i++) { |
609 | if (hdlinks->hdl[i].src_dev == dev && | |
610 | hdlinks->hdl[i].src_ino == ino) | |
f84894bc RY |
611 | return i; |
612 | } | |
613 | return -1; | |
614 | } | |
615 | ||
0d4deba2 | 616 | /* Copy the native file to the fs */ |
a3111e80 DW |
617 | errcode_t do_write_internal(ext2_filsys fs, ext2_ino_t cwd, const char *src, |
618 | const char *dest, ext2_ino_t root) | |
0d4deba2 | 619 | { |
ce600dc4 RY |
620 | int fd; |
621 | struct stat statbuf; | |
622 | ext2_ino_t newfile; | |
623 | errcode_t retval; | |
624 | struct ext2_inode inode; | |
ce600dc4 | 625 | |
ec3a42b1 | 626 | fd = ext2fs_open_file(src, O_RDONLY, 0); |
ce600dc4 | 627 | if (fd < 0) { |
b04af4fe DW |
628 | retval = errno; |
629 | com_err(__func__, retval, _("while opening \"%s\" to copy"), | |
630 | src); | |
631 | return retval; | |
ce600dc4 RY |
632 | } |
633 | if (fstat(fd, &statbuf) < 0) { | |
b04af4fe DW |
634 | retval = errno; |
635 | goto out; | |
ce600dc4 RY |
636 | } |
637 | ||
a3111e80 | 638 | retval = ext2fs_namei(fs, root, cwd, dest, &newfile); |
ce600dc4 | 639 | if (retval == 0) { |
b04af4fe DW |
640 | retval = EXT2_ET_FILE_EXISTS; |
641 | goto out; | |
ce600dc4 RY |
642 | } |
643 | ||
a3111e80 | 644 | retval = ext2fs_new_inode(fs, cwd, 010755, 0, &newfile); |
b04af4fe DW |
645 | if (retval) |
646 | goto out; | |
ce600dc4 RY |
647 | #ifdef DEBUGFS |
648 | printf("Allocated inode: %u\n", newfile); | |
649 | #endif | |
a3111e80 | 650 | retval = ext2fs_link(fs, cwd, dest, newfile, |
ce600dc4 RY |
651 | EXT2_FT_REG_FILE); |
652 | if (retval == EXT2_ET_DIR_NO_SPACE) { | |
a3111e80 | 653 | retval = ext2fs_expand_dir(fs, cwd); |
b04af4fe DW |
654 | if (retval) |
655 | goto out; | |
a3111e80 | 656 | retval = ext2fs_link(fs, cwd, dest, newfile, |
ce600dc4 RY |
657 | EXT2_FT_REG_FILE); |
658 | } | |
b04af4fe DW |
659 | if (retval) |
660 | goto out; | |
a3111e80 | 661 | if (ext2fs_test_inode_bitmap2(fs->inode_map, newfile)) |
ce600dc4 | 662 | com_err(__func__, 0, "Warning: inode already set"); |
a3111e80 | 663 | ext2fs_inode_alloc_stats2(fs, newfile, +1, 0); |
ce600dc4 | 664 | memset(&inode, 0, sizeof(inode)); |
f106b01c | 665 | inode.i_mode = (statbuf.st_mode & ~S_IFMT) | LINUX_S_IFREG; |
ce600dc4 | 666 | inode.i_atime = inode.i_ctime = inode.i_mtime = |
a3111e80 | 667 | fs->now ? fs->now : time(0); |
ce600dc4 | 668 | inode.i_links_count = 1; |
22302aa3 | 669 | retval = ext2fs_inode_size_set(fs, &inode, statbuf.st_size); |
b04af4fe DW |
670 | if (retval) |
671 | goto out; | |
7889640d | 672 | if (ext2fs_has_feature_inline_data(fs->super)) { |
d23b1965 | 673 | inode.i_flags |= EXT4_INLINE_DATA_FL; |
7889640d | 674 | } else if (ext2fs_has_feature_extents(fs->super)) { |
3548bb64 DW |
675 | ext2_extent_handle_t handle; |
676 | ||
677 | inode.i_flags &= ~EXT4_EXTENTS_FL; | |
678 | retval = ext2fs_extent_open2(fs, newfile, &inode, &handle); | |
679 | if (retval) | |
b04af4fe | 680 | goto out; |
3548bb64 | 681 | ext2fs_extent_free(handle); |
ce600dc4 RY |
682 | } |
683 | ||
a3111e80 | 684 | retval = ext2fs_write_new_inode(fs, newfile, &inode); |
b04af4fe DW |
685 | if (retval) |
686 | goto out; | |
d23b1965 | 687 | if (inode.i_flags & EXT4_INLINE_DATA_FL) { |
a3111e80 | 688 | retval = ext2fs_inline_data_init(fs, newfile); |
b04af4fe DW |
689 | if (retval) |
690 | goto out; | |
d23b1965 | 691 | } |
ce600dc4 | 692 | if (LINUX_S_ISREG(inode.i_mode)) { |
76f13234 | 693 | retval = copy_file(fs, fd, &statbuf, newfile); |
ce600dc4 | 694 | if (retval) |
b04af4fe | 695 | goto out; |
ce600dc4 | 696 | } |
b04af4fe | 697 | out: |
ce600dc4 | 698 | close(fd); |
117b54c3 | 699 | return retval; |
0d4deba2 RY |
700 | } |
701 | ||
9d25d462 AS |
702 | struct file_info { |
703 | char *path; | |
704 | size_t path_len; | |
705 | size_t path_max_len; | |
706 | }; | |
707 | ||
708 | static errcode_t path_append(struct file_info *target, const char *file) | |
709 | { | |
710 | if (strlen(file) + target->path_len + 1 > target->path_max_len) { | |
21dde7ba | 711 | void *p; |
9d25d462 | 712 | target->path_max_len *= 2; |
21dde7ba LC |
713 | p = realloc(target->path, target->path_max_len); |
714 | if (p == NULL) | |
9d25d462 | 715 | return EXT2_ET_NO_MEMORY; |
21dde7ba | 716 | target->path = p; |
9d25d462 AS |
717 | } |
718 | target->path_len += sprintf(target->path + target->path_len, "/%s", | |
719 | file); | |
720 | return 0; | |
721 | } | |
722 | ||
f6f4b4b3 YS |
723 | #ifdef _WIN32 |
724 | static int scandir(const char *dir_name, struct dirent ***name_list, | |
725 | int (*filter)(const struct dirent*), | |
726 | int (*compar)(const struct dirent**, const struct dirent**)) { | |
727 | DIR *dir; | |
728 | struct dirent *dent; | |
729 | struct dirent **temp_list = NULL; | |
730 | size_t temp_list_size = 0; // unit: num of dirent | |
731 | size_t num_dent = 0; | |
732 | ||
733 | dir = opendir(dir_name); | |
734 | if (dir == NULL) { | |
735 | return -1; | |
736 | } | |
737 | ||
738 | while ((dent = readdir(dir))) { | |
739 | if (filter != NULL && !(*filter)(dent)) | |
740 | continue; | |
741 | ||
742 | // re-allocate the list | |
743 | if (num_dent == temp_list_size) { | |
744 | size_t new_list_size = temp_list_size + 32; | |
745 | struct dirent **new_list = (struct dirent**)realloc( | |
746 | temp_list, new_list_size * sizeof(struct dirent*)); | |
747 | if (new_list == NULL) { | |
748 | goto out; | |
749 | } | |
750 | temp_list_size = new_list_size; | |
751 | temp_list = new_list; | |
752 | } | |
753 | // add the copy of dirent to the list | |
754 | temp_list[num_dent] = (struct dirent*)malloc((dent->d_reclen + 3) & ~3); | |
755 | memcpy(temp_list[num_dent], dent, dent->d_reclen); | |
756 | num_dent++; | |
757 | } | |
758 | ||
759 | if (compar != NULL) { | |
760 | qsort(temp_list, num_dent, sizeof(struct dirent*), | |
761 | (int (*)(const void*, const void*))compar); | |
762 | } | |
763 | ||
764 | // release the temp list | |
765 | *name_list = temp_list; | |
766 | temp_list = NULL; | |
767 | ||
768 | out: | |
769 | if (temp_list != NULL) { | |
770 | while (num_dent > 0) { | |
771 | free(temp_list[--num_dent]); | |
772 | } | |
773 | free(temp_list); | |
774 | num_dent = -1; | |
775 | } | |
776 | closedir(dir); | |
777 | return num_dent; | |
778 | } | |
779 | ||
780 | static int alphasort(const struct dirent **a, const struct dirent **b) { | |
781 | return strcoll((*a)->d_name, (*b)->d_name); | |
782 | } | |
783 | #endif | |
784 | ||
785 | /* Copy files from source_dir to fs in alphabetical order */ | |
b99888a0 DW |
786 | static errcode_t __populate_fs(ext2_filsys fs, ext2_ino_t parent_ino, |
787 | const char *source_dir, ext2_ino_t root, | |
9d25d462 AS |
788 | struct hdlinks_s *hdlinks, |
789 | struct file_info *target, | |
790 | struct fs_ops_callbacks *fs_callbacks) | |
0d4deba2 | 791 | { |
052064b9 | 792 | const char *name; |
f6f4b4b3 | 793 | struct dirent **dent; |
052064b9 | 794 | struct stat st; |
d0e855fa | 795 | char *ln_target = NULL; |
f84894bc | 796 | unsigned int save_inode; |
052064b9 | 797 | ext2_ino_t ino; |
1bad6f46 | 798 | errcode_t retval = 0; |
052064b9 | 799 | int read_cnt; |
f84894bc | 800 | int hdlink; |
9d25d462 | 801 | size_t cur_dir_path_len; |
f6f4b4b3 | 802 | int i, num_dents; |
052064b9 | 803 | |
052064b9 | 804 | if (chdir(source_dir) < 0) { |
b04af4fe DW |
805 | retval = errno; |
806 | com_err(__func__, retval, | |
9c891f7e DW |
807 | _("while changing working directory to \"%s\""), |
808 | source_dir); | |
b04af4fe | 809 | return retval; |
052064b9 RY |
810 | } |
811 | ||
f6f4b4b3 YS |
812 | num_dents = scandir(".", &dent, NULL, alphasort); |
813 | ||
814 | if (num_dents < 0) { | |
b04af4fe DW |
815 | retval = errno; |
816 | com_err(__func__, retval, | |
f6f4b4b3 | 817 | _("while scanning directory \"%s\""), source_dir); |
b04af4fe | 818 | return retval; |
052064b9 RY |
819 | } |
820 | ||
f6f4b4b3 YS |
821 | for (i = 0; i < num_dents; free(dent[i]), i++) { |
822 | name = dent[i]->d_name; | |
823 | if ((!strcmp(name, ".")) || (!strcmp(name, ".."))) | |
052064b9 | 824 | continue; |
f6f4b4b3 | 825 | if (lstat(name, &st)) { |
b04af4fe DW |
826 | retval = errno; |
827 | com_err(__func__, retval, _("while lstat \"%s\""), | |
f6f4b4b3 | 828 | name); |
1bad6f46 DW |
829 | goto out; |
830 | } | |
052064b9 | 831 | |
f84894bc RY |
832 | /* Check for hardlinks */ |
833 | save_inode = 0; | |
9c891f7e DW |
834 | if (!S_ISDIR(st.st_mode) && !S_ISLNK(st.st_mode) && |
835 | st.st_nlink > 1) { | |
b99888a0 | 836 | hdlink = is_hardlink(hdlinks, st.st_dev, st.st_ino); |
f84894bc | 837 | if (hdlink >= 0) { |
a3111e80 | 838 | retval = add_link(fs, parent_ino, |
b99888a0 | 839 | hdlinks->hdl[hdlink].dst_ino, |
9c891f7e | 840 | name); |
f84894bc | 841 | if (retval) { |
9c891f7e DW |
842 | com_err(__func__, retval, |
843 | "while linking %s", name); | |
1bad6f46 | 844 | goto out; |
f84894bc RY |
845 | } |
846 | continue; | |
847 | } else | |
848 | save_inode = 1; | |
849 | } | |
850 | ||
9d25d462 AS |
851 | cur_dir_path_len = target->path_len; |
852 | retval = path_append(target, name); | |
8374979b JQ |
853 | if (retval) { |
854 | com_err(__func__, retval, | |
855 | "while appending %s", name); | |
856 | goto out; | |
857 | } | |
9d25d462 AS |
858 | |
859 | if (fs_callbacks && fs_callbacks->create_new_inode) { | |
860 | retval = fs_callbacks->create_new_inode(fs, | |
861 | target->path, name, parent_ino, root, | |
862 | st.st_mode & S_IFMT); | |
863 | if (retval) | |
864 | goto out; | |
865 | } | |
866 | ||
052064b9 | 867 | switch(st.st_mode & S_IFMT) { |
9c891f7e DW |
868 | case S_IFCHR: |
869 | case S_IFBLK: | |
870 | case S_IFIFO: | |
0a3d8041 | 871 | #ifndef _WIN32 |
c61e0068 | 872 | case S_IFSOCK: |
47e61052 TT |
873 | retval = do_mknod_internal(fs, parent_ino, name, |
874 | st.st_mode, st.st_rdev); | |
9c891f7e DW |
875 | if (retval) { |
876 | com_err(__func__, retval, | |
877 | _("while creating special file " | |
878 | "\"%s\""), name); | |
1bad6f46 | 879 | goto out; |
9c891f7e DW |
880 | } |
881 | break; | |
9c891f7e | 882 | case S_IFLNK: |
d0e855fa TT |
883 | ln_target = malloc(st.st_size + 1); |
884 | if (ln_target == NULL) { | |
885 | com_err(__func__, retval, | |
886 | _("malloc failed")); | |
887 | goto out; | |
888 | } | |
9c891f7e | 889 | read_cnt = readlink(name, ln_target, |
d0e855fa | 890 | st.st_size + 1); |
9c891f7e | 891 | if (read_cnt == -1) { |
ec3a42b1 | 892 | retval = errno; |
b04af4fe DW |
893 | com_err(__func__, retval, |
894 | _("while trying to read link \"%s\""), | |
895 | name); | |
051fd4e0 | 896 | free(ln_target); |
ec3a42b1 | 897 | goto out; |
9c891f7e | 898 | } |
d0e855fa TT |
899 | if (read_cnt > st.st_size) { |
900 | com_err(__func__, retval, | |
901 | _("symlink increased in size " | |
902 | "between lstat() and readlink()")); | |
903 | free(ln_target); | |
904 | goto out; | |
905 | } | |
9c891f7e | 906 | ln_target[read_cnt] = '\0'; |
a3111e80 DW |
907 | retval = do_symlink_internal(fs, parent_ino, name, |
908 | ln_target, root); | |
d0e855fa | 909 | free(ln_target); |
9c891f7e DW |
910 | if (retval) { |
911 | com_err(__func__, retval, | |
912 | _("while writing symlink\"%s\""), | |
913 | name); | |
1bad6f46 | 914 | goto out; |
9c891f7e DW |
915 | } |
916 | break; | |
0a3d8041 | 917 | #endif |
9c891f7e | 918 | case S_IFREG: |
a3111e80 DW |
919 | retval = do_write_internal(fs, parent_ino, name, name, |
920 | root); | |
9c891f7e DW |
921 | if (retval) { |
922 | com_err(__func__, retval, | |
923 | _("while writing file \"%s\""), name); | |
1bad6f46 | 924 | goto out; |
9c891f7e DW |
925 | } |
926 | break; | |
927 | case S_IFDIR: | |
b04af4fe DW |
928 | /* Don't choke on /lost+found */ |
929 | if (parent_ino == EXT2_ROOT_INO && | |
930 | strcmp(name, "lost+found") == 0) | |
931 | goto find_lnf; | |
25f291c9 | 932 | retval = do_mkdir_internal(fs, parent_ino, name, |
a3111e80 | 933 | root); |
9c891f7e DW |
934 | if (retval) { |
935 | com_err(__func__, retval, | |
936 | _("while making dir \"%s\""), name); | |
1bad6f46 | 937 | goto out; |
9c891f7e | 938 | } |
b04af4fe | 939 | find_lnf: |
a3111e80 | 940 | retval = ext2fs_namei(fs, root, parent_ino, |
9c891f7e DW |
941 | name, &ino); |
942 | if (retval) { | |
943 | com_err(name, retval, 0); | |
1bad6f46 | 944 | goto out; |
9c891f7e DW |
945 | } |
946 | /* Populate the dir recursively*/ | |
9d25d462 AS |
947 | retval = __populate_fs(fs, ino, name, root, hdlinks, |
948 | target, fs_callbacks); | |
b04af4fe | 949 | if (retval) |
1bad6f46 | 950 | goto out; |
a3111e80 | 951 | if (chdir("..")) { |
1bad6f46 | 952 | retval = errno; |
b04af4fe DW |
953 | com_err(__func__, retval, |
954 | _("while changing directory")); | |
1bad6f46 | 955 | goto out; |
a3111e80 | 956 | } |
9c891f7e DW |
957 | break; |
958 | default: | |
959 | com_err(__func__, 0, | |
960 | _("ignoring entry \"%s\""), name); | |
052064b9 | 961 | } |
b6960654 | 962 | |
a3111e80 | 963 | retval = ext2fs_namei(fs, root, parent_ino, name, &ino); |
8f8d8a57 | 964 | if (retval) { |
b04af4fe DW |
965 | com_err(name, retval, _("while looking up \"%s\""), |
966 | name); | |
1bad6f46 | 967 | goto out; |
b6960654 RY |
968 | } |
969 | ||
25f291c9 | 970 | retval = set_inode_extra(fs, ino, &st); |
8f8d8a57 | 971 | if (retval) { |
b6960654 RY |
972 | com_err(__func__, retval, |
973 | _("while setting inode for \"%s\""), name); | |
1bad6f46 | 974 | goto out; |
b6960654 | 975 | } |
f84894bc | 976 | |
c84da2ee RB |
977 | retval = set_inode_xattr(fs, ino, name); |
978 | if (retval) { | |
979 | com_err(__func__, retval, | |
980 | _("while setting xattrs for \"%s\""), name); | |
981 | goto out; | |
982 | } | |
983 | ||
9d25d462 AS |
984 | if (fs_callbacks && fs_callbacks->end_create_new_inode) { |
985 | retval = fs_callbacks->end_create_new_inode(fs, | |
986 | target->path, name, parent_ino, root, | |
987 | st.st_mode & S_IFMT); | |
988 | if (retval) | |
989 | goto out; | |
990 | } | |
991 | ||
f84894bc RY |
992 | /* Save the hardlink ino */ |
993 | if (save_inode) { | |
994 | /* | |
995 | * Check whether need more memory, and we don't need | |
996 | * free() since the lifespan will be over after the fs | |
997 | * populated. | |
998 | */ | |
b99888a0 DW |
999 | if (hdlinks->count == hdlinks->size) { |
1000 | void *p = realloc(hdlinks->hdl, | |
1001 | (hdlinks->size + HDLINK_CNT) * | |
1002 | sizeof(struct hdlink_s)); | |
1003 | if (p == NULL) { | |
1bad6f46 | 1004 | retval = EXT2_ET_NO_MEMORY; |
b04af4fe DW |
1005 | com_err(name, retval, |
1006 | _("while saving inode data")); | |
1bad6f46 | 1007 | goto out; |
f84894bc | 1008 | } |
b99888a0 DW |
1009 | hdlinks->hdl = p; |
1010 | hdlinks->size += HDLINK_CNT; | |
f84894bc | 1011 | } |
b99888a0 DW |
1012 | hdlinks->hdl[hdlinks->count].src_dev = st.st_dev; |
1013 | hdlinks->hdl[hdlinks->count].src_ino = st.st_ino; | |
1014 | hdlinks->hdl[hdlinks->count].dst_ino = ino; | |
1015 | hdlinks->count++; | |
f84894bc | 1016 | } |
9d25d462 AS |
1017 | target->path_len = cur_dir_path_len; |
1018 | target->path[target->path_len] = 0; | |
052064b9 | 1019 | } |
1bad6f46 DW |
1020 | |
1021 | out: | |
f6f4b4b3 YS |
1022 | for (; i < num_dents; free(dent[i]), i++); |
1023 | free(dent); | |
052064b9 | 1024 | return retval; |
0d4deba2 | 1025 | } |
b99888a0 | 1026 | |
9d25d462 AS |
1027 | errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino, |
1028 | const char *source_dir, ext2_ino_t root, | |
1029 | struct fs_ops_callbacks *fs_callbacks) | |
b99888a0 | 1030 | { |
9d25d462 | 1031 | struct file_info file_info; |
b99888a0 DW |
1032 | struct hdlinks_s hdlinks; |
1033 | errcode_t retval; | |
1034 | ||
b04af4fe DW |
1035 | if (!(fs->flags & EXT2_FLAG_RW)) { |
1036 | com_err(__func__, 0, "Filesystem opened readonly"); | |
1037 | return EROFS; | |
1038 | } | |
1039 | ||
b99888a0 DW |
1040 | hdlinks.count = 0; |
1041 | hdlinks.size = HDLINK_CNT; | |
1042 | hdlinks.hdl = realloc(NULL, hdlinks.size * sizeof(struct hdlink_s)); | |
1043 | if (hdlinks.hdl == NULL) { | |
b04af4fe DW |
1044 | retval = errno; |
1045 | com_err(__func__, retval, _("while allocating memory")); | |
1046 | return retval; | |
b99888a0 DW |
1047 | } |
1048 | ||
9d25d462 AS |
1049 | file_info.path_len = 0; |
1050 | file_info.path_max_len = 255; | |
1051 | file_info.path = calloc(file_info.path_max_len, 1); | |
b99888a0 | 1052 | |
9d25d462 AS |
1053 | retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks, |
1054 | &file_info, fs_callbacks); | |
1055 | ||
1056 | free(file_info.path); | |
b99888a0 DW |
1057 | free(hdlinks.hdl); |
1058 | return retval; | |
1059 | } | |
9d25d462 AS |
1060 | |
1061 | errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino, | |
1062 | const char *source_dir, ext2_ino_t root) | |
1063 | { | |
1064 | return populate_fs2(fs, parent_ino, source_dir, root, NULL); | |
1065 | } |