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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * util.c --- miscellaneous utilities | |
efc6f628 | 3 | * |
21c84b71 TT |
4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o. |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
3839e657 TT |
10 | */ |
11 | ||
d1154eb4 | 12 | #include "config.h" |
3839e657 | 13 | #include <stdlib.h> |
80875db5 | 14 | #include <stdio.h> |
3839e657 TT |
15 | #include <unistd.h> |
16 | #include <string.h> | |
17 | #include <ctype.h> | |
80875db5 TT |
18 | #ifdef __linux__ |
19 | #include <sys/utsname.h> | |
20 | #endif | |
9ecd8bec TT |
21 | |
22 | #ifdef HAVE_CONIO_H | |
23 | #undef HAVE_TERMIOS_H | |
24 | #include <conio.h> | |
e6597048 | 25 | #define read_a_char() getch() |
9ecd8bec TT |
26 | #else |
27 | #ifdef HAVE_TERMIOS_H | |
3839e657 | 28 | #include <termios.h> |
9ecd8bec TT |
29 | #endif |
30 | #endif | |
31 | ||
4a9f5936 TT |
32 | #ifdef HAVE_MALLOC_H |
33 | #include <malloc.h> | |
34 | #endif | |
3839e657 | 35 | |
49a7360b JS |
36 | #ifdef HAVE_ERRNO_H |
37 | #include <errno.h> | |
38 | #endif | |
39 | ||
79614b27 DW |
40 | #ifdef HAVE_SYS_SYSCTL_H |
41 | #include <sys/sysctl.h> | |
42 | #endif | |
43 | ||
3839e657 TT |
44 | #include "e2fsck.h" |
45 | ||
aa75eccc | 46 | extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ |
542867fb | 47 | |
b0e91c89 | 48 | #include <stdarg.h> |
0f5eba75 | 49 | #include <time.h> |
50e1e10f TT |
50 | #include <sys/time.h> |
51 | #include <sys/resource.h> | |
52 | ||
f8188fff | 53 | void fatal_error(e2fsck_t ctx, const char *msg) |
3839e657 | 54 | { |
13dcce8b ES |
55 | ext2_filsys fs = ctx->fs; |
56 | int exit_value = FSCK_ERROR; | |
57 | ||
efc6f628 | 58 | if (msg) |
1b6bf175 | 59 | fprintf (stderr, "e2fsck: %s\n", msg); |
13dcce8b ES |
60 | if (!fs) |
61 | goto out; | |
7ff040f3 | 62 | if (fs->io && fs->super) { |
0f5eba75 | 63 | ext2fs_mmp_stop(ctx->fs); |
e39ac922 | 64 | if (ctx->fs->io->magic == EXT2_ET_MAGIC_IO_CHANNEL) |
58a75177 TT |
65 | io_channel_flush(ctx->fs->io); |
66 | else | |
b0e91c89 | 67 | log_err(ctx, "e2fsck: io manager magic bad!\n"); |
58a75177 | 68 | } |
13dcce8b ES |
69 | if (ext2fs_test_changed(fs)) { |
70 | exit_value |= FSCK_NONDESTRUCT; | |
b0e91c89 | 71 | log_out(ctx, _("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"), |
13dcce8b ES |
72 | ctx->device_name); |
73 | if (ctx->mount_flags & EXT2_MF_ISROOT) | |
74 | exit_value |= FSCK_REBOOT; | |
75 | } | |
76 | if (!ext2fs_test_valid(fs)) { | |
b0e91c89 TT |
77 | log_out(ctx, _("\n%s: ********** WARNING: Filesystem still has " |
78 | "errors **********\n\n"), ctx->device_name); | |
13dcce8b ES |
79 | exit_value |= FSCK_UNCORRECTED; |
80 | exit_value &= ~FSCK_NONDESTRUCT; | |
81 | } | |
82 | out: | |
f8188fff TT |
83 | ctx->flags |= E2F_FLAG_ABORT; |
84 | if (ctx->flags & E2F_FLAG_SETJMP_OK) | |
85 | longjmp(ctx->abort_loc, 1); | |
7a2a0145 TT |
86 | if (ctx->logf) |
87 | fprintf(ctx->logf, "Exit status: %d\n", exit_value); | |
13dcce8b | 88 | exit(exit_value); |
3839e657 TT |
89 | } |
90 | ||
b0e91c89 TT |
91 | void log_out(e2fsck_t ctx, const char *fmt, ...) |
92 | { | |
93 | va_list pvar; | |
94 | ||
95 | va_start(pvar, fmt); | |
96 | vprintf(fmt, pvar); | |
97 | va_end(pvar); | |
98 | if (ctx->logf) { | |
99 | va_start(pvar, fmt); | |
100 | vfprintf(ctx->logf, fmt, pvar); | |
101 | va_end(pvar); | |
102 | } | |
103 | } | |
104 | ||
105 | void log_err(e2fsck_t ctx, const char *fmt, ...) | |
106 | { | |
107 | va_list pvar; | |
108 | ||
109 | va_start(pvar, fmt); | |
110 | vfprintf(stderr, fmt, pvar); | |
111 | va_end(pvar); | |
112 | if (ctx->logf) { | |
113 | va_start(pvar, fmt); | |
114 | vfprintf(ctx->logf, fmt, pvar); | |
115 | va_end(pvar); | |
116 | } | |
117 | } | |
118 | ||
f8188fff TT |
119 | void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size, |
120 | const char *description) | |
3839e657 TT |
121 | { |
122 | void *ret; | |
123 | char buf[256]; | |
124 | ||
125 | #ifdef DEBUG_ALLOCATE_MEMORY | |
611378fe | 126 | printf("Allocating %u bytes for %s...\n", size, description); |
3839e657 TT |
127 | #endif |
128 | ret = malloc(size); | |
129 | if (!ret) { | |
bf50beb9 ES |
130 | sprintf(buf, "Can't allocate %u bytes for %s\n", |
131 | size, description); | |
f8188fff | 132 | fatal_error(ctx, buf); |
3839e657 TT |
133 | } |
134 | memset(ret, 0, size); | |
135 | return ret; | |
136 | } | |
137 | ||
efc6f628 | 138 | char *string_copy(e2fsck_t ctx EXT2FS_ATTR((unused)), |
54434927 | 139 | const char *str, int len) |
f364093b TT |
140 | { |
141 | char *ret; | |
efc6f628 | 142 | |
f364093b TT |
143 | if (!str) |
144 | return NULL; | |
145 | if (!len) | |
146 | len = strlen(str); | |
147 | ret = malloc(len+1); | |
148 | if (ret) { | |
149 | strncpy(ret, str, len); | |
150 | ret[len] = 0; | |
151 | } | |
152 | return ret; | |
153 | } | |
154 | ||
155 | #ifndef HAVE_STRNLEN | |
156 | /* | |
157 | * Incredibly, libc5 doesn't appear to have strnlen. So we have to | |
158 | * provide our own. | |
159 | */ | |
160 | int e2fsck_strnlen(const char * s, int count) | |
161 | { | |
162 | const char *cp = s; | |
163 | ||
164 | while (count-- && *cp) | |
165 | cp++; | |
166 | return cp - s; | |
167 | } | |
168 | #endif | |
169 | ||
542867fb | 170 | #ifndef HAVE_CONIO_H |
3e699064 | 171 | static int read_a_char(void) |
542867fb TT |
172 | { |
173 | char c; | |
174 | int r; | |
175 | int fail = 0; | |
176 | ||
177 | while(1) { | |
178 | if (e2fsck_global_ctx && | |
179 | (e2fsck_global_ctx->flags & E2F_FLAG_CANCEL)) { | |
180 | return 3; | |
181 | } | |
182 | r = read(0, &c, 1); | |
183 | if (r == 1) | |
184 | return c; | |
185 | if (fail++ > 100) | |
186 | break; | |
187 | } | |
188 | return EOF; | |
189 | } | |
190 | #endif | |
191 | ||
b0e91c89 | 192 | int ask_yn(e2fsck_t ctx, const char * string, int def) |
3839e657 TT |
193 | { |
194 | int c; | |
3839e657 | 195 | const char *defstr; |
53ef44c4 TT |
196 | const char *short_yes = _("yY"); |
197 | const char *short_no = _("nN"); | |
aeb933b3 | 198 | const char *short_yesall = _("aA"); |
9f8a1826 TT |
199 | const char *english_yes = "yY"; |
200 | const char *english_no = "nN"; | |
201 | const char *english_yesall = "aA"; | |
aeb933b3 DW |
202 | const char *yesall_prompt = _(" ('a' enables 'yes' to all) "); |
203 | const char *extra_prompt = ""; | |
204 | static int yes_answers; | |
3839e657 | 205 | |
9ecd8bec | 206 | #ifdef HAVE_TERMIOS_H |
cbe1aa0b | 207 | struct termios termios = {0, }, tmp; |
9ecd8bec | 208 | |
3839e657 TT |
209 | tcgetattr (0, &termios); |
210 | tmp = termios; | |
211 | tmp.c_lflag &= ~(ICANON | ECHO); | |
50e1e10f TT |
212 | tmp.c_cc[VMIN] = 1; |
213 | tmp.c_cc[VTIME] = 0; | |
3839e657 | 214 | tcsetattr (0, TCSANOW, &tmp); |
9ecd8bec | 215 | #endif |
3839e657 TT |
216 | |
217 | if (def == 1) | |
542867fb | 218 | defstr = _(_("<y>")); |
3839e657 | 219 | else if (def == 0) |
542867fb | 220 | defstr = _(_("<n>")); |
3839e657 | 221 | else |
0c4a0726 | 222 | defstr = _(" (y/n)"); |
aeb933b3 DW |
223 | /* |
224 | * If the user presses 'y' more than 8 (but less than 12) times in | |
225 | * succession without pressing anything else, display a hint about | |
226 | * yes-to-all mode. | |
227 | */ | |
228 | if (yes_answers > 12) | |
229 | yes_answers = -1; | |
230 | else if (yes_answers > 8) | |
231 | extra_prompt = yesall_prompt; | |
232 | log_out(ctx, "%s%s%s? ", string, extra_prompt, defstr); | |
3839e657 TT |
233 | while (1) { |
234 | fflush (stdout); | |
e6597048 | 235 | if ((c = read_a_char()) == EOF) |
3839e657 | 236 | break; |
542867fb TT |
237 | if (c == 3) { |
238 | #ifdef HAVE_TERMIOS_H | |
239 | tcsetattr (0, TCSANOW, &termios); | |
240 | #endif | |
b0e91c89 TT |
241 | if (ctx->flags & E2F_FLAG_SETJMP_OK) { |
242 | log_out(ctx, "\n"); | |
542867fb TT |
243 | longjmp(e2fsck_global_ctx->abort_loc, 1); |
244 | } | |
45ff69ff | 245 | log_out(ctx, "%s", _("cancelled!\n")); |
aeb933b3 | 246 | yes_answers = 0; |
542867fb TT |
247 | return 0; |
248 | } | |
0c4a0726 | 249 | if (strchr(short_yes, (char) c)) { |
9f8a1826 | 250 | do_yes: |
3839e657 | 251 | def = 1; |
aeb933b3 DW |
252 | if (yes_answers >= 0) |
253 | yes_answers++; | |
3839e657 | 254 | break; |
aeb933b3 | 255 | } else if (strchr(short_no, (char) c)) { |
9f8a1826 | 256 | do_no: |
3839e657 | 257 | def = 0; |
aeb933b3 | 258 | yes_answers = -1; |
3839e657 | 259 | break; |
aeb933b3 | 260 | } else if (strchr(short_yesall, (char)c)) { |
9f8a1826 | 261 | do_all: |
aeb933b3 DW |
262 | def = 2; |
263 | yes_answers = -1; | |
264 | ctx->options |= E2F_OPT_YES; | |
3839e657 | 265 | break; |
9f8a1826 TT |
266 | } else if (strchr(english_yes, (char) c)) { |
267 | goto do_yes; | |
268 | } else if (strchr(english_no, (char) c)) { | |
269 | goto do_no; | |
270 | } else if (strchr(english_yesall, (char) c)) { | |
271 | goto do_all; | |
aeb933b3 DW |
272 | } else if ((c == 27 || c == ' ' || c == '\n') && (def != -1)) { |
273 | yes_answers = -1; | |
274 | break; | |
275 | } | |
3839e657 | 276 | } |
aeb933b3 DW |
277 | if (def == 2) |
278 | log_out(ctx, "%s", _("yes to all\n")); | |
279 | else if (def) | |
45ff69ff | 280 | log_out(ctx, "%s", _("yes\n")); |
3839e657 | 281 | else |
45ff69ff | 282 | log_out(ctx, "%s", _("no\n")); |
9ecd8bec | 283 | #ifdef HAVE_TERMIOS_H |
3839e657 | 284 | tcsetattr (0, TCSANOW, &termios); |
9ecd8bec | 285 | #endif |
3839e657 TT |
286 | return def; |
287 | } | |
288 | ||
1b6bf175 | 289 | int ask (e2fsck_t ctx, const char * string, int def) |
3839e657 | 290 | { |
1b6bf175 | 291 | if (ctx->options & E2F_OPT_NO) { |
b0e91c89 | 292 | log_out(ctx, _("%s? no\n\n"), string); |
3839e657 TT |
293 | return 0; |
294 | } | |
1b6bf175 | 295 | if (ctx->options & E2F_OPT_YES) { |
b0e91c89 | 296 | log_out(ctx, _("%s? yes\n\n"), string); |
3839e657 TT |
297 | return 1; |
298 | } | |
1b6bf175 | 299 | if (ctx->options & E2F_OPT_PREEN) { |
b0e91c89 | 300 | log_out(ctx, "%s? %s\n\n", string, def ? _("yes") : _("no")); |
3839e657 TT |
301 | return def; |
302 | } | |
b0e91c89 | 303 | return ask_yn(ctx, string, def); |
3839e657 TT |
304 | } |
305 | ||
f8188fff | 306 | void e2fsck_read_bitmaps(e2fsck_t ctx) |
3839e657 | 307 | { |
1b6bf175 | 308 | ext2_filsys fs = ctx->fs; |
3839e657 | 309 | errcode_t retval; |
e94bc631 | 310 | const char *old_op; |
830b44f4 | 311 | unsigned int save_type; |
2e9d8391 | 312 | int flags; |
3839e657 | 313 | |
1b6bf175 TT |
314 | if (ctx->invalid_bitmaps) { |
315 | com_err(ctx->program_name, 0, | |
0c4a0726 | 316 | _("e2fsck_read_bitmaps: illegal bitmap block(s) for %s"), |
1b6bf175 | 317 | ctx->device_name); |
f8188fff | 318 | fatal_error(ctx, 0); |
3839e657 | 319 | } |
f3db3566 | 320 | |
e94bc631 | 321 | old_op = ehandler_operation(_("reading inode and block bitmaps")); |
830b44f4 TT |
322 | e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE, "fs_bitmaps", |
323 | &save_type); | |
2e9d8391 | 324 | flags = ctx->fs->flags; |
d1b9d835 | 325 | ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; |
f3db3566 | 326 | retval = ext2fs_read_bitmaps(fs); |
2e9d8391 DW |
327 | ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) | |
328 | (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS); | |
830b44f4 | 329 | fs->default_bitmap_type = save_type; |
e94bc631 | 330 | ehandler_operation(old_op); |
f3db3566 | 331 | if (retval) { |
1b6bf175 | 332 | com_err(ctx->program_name, retval, |
0c4a0726 | 333 | _("while retrying to read bitmaps for %s"), |
1b6bf175 | 334 | ctx->device_name); |
f8188fff | 335 | fatal_error(ctx, 0); |
3839e657 TT |
336 | } |
337 | } | |
338 | ||
f8188fff | 339 | void e2fsck_write_bitmaps(e2fsck_t ctx) |
3839e657 | 340 | { |
1b6bf175 | 341 | ext2_filsys fs = ctx->fs; |
3839e657 | 342 | errcode_t retval; |
e94bc631 | 343 | const char *old_op; |
3839e657 | 344 | |
1bb6f6c8 AD |
345 | old_op = ehandler_operation(_("writing block and inode bitmaps")); |
346 | retval = ext2fs_write_bitmaps(fs); | |
347 | ehandler_operation(old_op); | |
348 | if (retval) { | |
349 | com_err(ctx->program_name, retval, | |
350 | _("while rewriting block and inode bitmaps for %s"), | |
351 | ctx->device_name); | |
352 | fatal_error(ctx, 0); | |
3839e657 TT |
353 | } |
354 | } | |
355 | ||
1b6bf175 | 356 | void preenhalt(e2fsck_t ctx) |
3839e657 | 357 | { |
1b6bf175 TT |
358 | ext2_filsys fs = ctx->fs; |
359 | ||
360 | if (!(ctx->options & E2F_OPT_PREEN)) | |
3839e657 | 361 | return; |
b0e91c89 | 362 | log_err(ctx, _("\n\n%s: UNEXPECTED INCONSISTENCY; " |
0c4a0726 | 363 | "RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"), |
1b6bf175 | 364 | ctx->device_name); |
79cc3362 | 365 | ctx->flags |= E2F_FLAG_EXITING; |
50e1e10f TT |
366 | if (fs != NULL) { |
367 | fs->super->s_state |= EXT2_ERROR_FS; | |
368 | ext2fs_mark_super_dirty(fs); | |
47fee2ef | 369 | ext2fs_close_free(&fs); |
50e1e10f | 370 | } |
3839e657 TT |
371 | exit(FSCK_UNCORRECTED); |
372 | } | |
373 | ||
8bf191e8 | 374 | #ifdef RESOURCE_TRACK |
6d96b00d | 375 | void init_resource_track(struct resource_track *track, io_channel channel) |
3839e657 | 376 | { |
50e1e10f | 377 | #ifdef HAVE_GETRUSAGE |
3839e657 | 378 | struct rusage r; |
50e1e10f | 379 | #endif |
6d96b00d | 380 | io_stats io_start = 0; |
efc6f628 | 381 | |
3839e657 TT |
382 | track->brk_start = sbrk(0); |
383 | gettimeofday(&track->time_start, 0); | |
50e1e10f | 384 | #ifdef HAVE_GETRUSAGE |
53ef44c4 TT |
385 | #ifdef sun |
386 | memset(&r, 0, sizeof(struct rusage)); | |
1b6bf175 | 387 | #endif |
3839e657 TT |
388 | getrusage(RUSAGE_SELF, &r); |
389 | track->user_start = r.ru_utime; | |
390 | track->system_start = r.ru_stime; | |
50e1e10f TT |
391 | #else |
392 | track->user_start.tv_sec = track->user_start.tv_usec = 0; | |
393 | track->system_start.tv_sec = track->system_start.tv_usec = 0; | |
394 | #endif | |
6d96b00d TT |
395 | track->bytes_read = 0; |
396 | track->bytes_written = 0; | |
397 | if (channel && channel->manager && channel->manager->get_stats) | |
398 | channel->manager->get_stats(channel, &io_start); | |
399 | if (io_start) { | |
400 | track->bytes_read = io_start->bytes_read; | |
401 | track->bytes_written = io_start->bytes_written; | |
402 | } | |
3839e657 TT |
403 | } |
404 | ||
21c84b71 TT |
405 | #ifdef __GNUC__ |
406 | #define _INLINE_ __inline__ | |
407 | #else | |
408 | #define _INLINE_ | |
409 | #endif | |
410 | ||
411 | static _INLINE_ float timeval_subtract(struct timeval *tv1, | |
412 | struct timeval *tv2) | |
3839e657 TT |
413 | { |
414 | return ((tv1->tv_sec - tv2->tv_sec) + | |
415 | ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000); | |
416 | } | |
417 | ||
9facd076 KC |
418 | void print_resource_track(e2fsck_t ctx, const char *desc, |
419 | struct resource_track *track, io_channel channel) | |
3839e657 | 420 | { |
50e1e10f | 421 | #ifdef HAVE_GETRUSAGE |
3839e657 | 422 | struct rusage r; |
4a9f5936 TT |
423 | #endif |
424 | #ifdef HAVE_MALLINFO | |
425 | struct mallinfo malloc_info; | |
50e1e10f | 426 | #endif |
3839e657 TT |
427 | struct timeval time_end; |
428 | ||
9facd076 KC |
429 | if ((desc && !(ctx->options & E2F_OPT_TIME2)) || |
430 | (!desc && !(ctx->options & E2F_OPT_TIME))) | |
431 | return; | |
432 | ||
433 | e2fsck_clear_progbar(ctx); | |
3839e657 | 434 | gettimeofday(&time_end, 0); |
1b6bf175 TT |
435 | |
436 | if (desc) | |
b0e91c89 | 437 | log_out(ctx, "%s: ", desc); |
4a9f5936 TT |
438 | |
439 | #ifdef HAVE_MALLINFO | |
70eabde9 | 440 | #define kbytes(x) (((unsigned long)(x) + 1023) / 1024) |
efc6f628 | 441 | |
4a9f5936 | 442 | malloc_info = mallinfo(); |
b0e91c89 TT |
443 | log_out(ctx, _("Memory used: %luk/%luk (%luk/%luk), "), |
444 | kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd), | |
445 | kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks)); | |
4a9f5936 | 446 | #else |
b0e91c89 TT |
447 | log_out(ctx, _("Memory used: %lu, "), |
448 | (unsigned long) (((char *) sbrk(0)) - | |
449 | ((char *) track->brk_start))); | |
efc6f628 | 450 | #endif |
50e1e10f | 451 | #ifdef HAVE_GETRUSAGE |
3839e657 TT |
452 | getrusage(RUSAGE_SELF, &r); |
453 | ||
b0e91c89 TT |
454 | log_out(ctx, _("time: %5.2f/%5.2f/%5.2f\n"), |
455 | timeval_subtract(&time_end, &track->time_start), | |
456 | timeval_subtract(&r.ru_utime, &track->user_start), | |
457 | timeval_subtract(&r.ru_stime, &track->system_start)); | |
50e1e10f | 458 | #else |
b0e91c89 TT |
459 | log_out(ctx, _("elapsed time: %6.3f\n"), |
460 | timeval_subtract(&time_end, &track->time_start)); | |
50e1e10f | 461 | #endif |
6d96b00d TT |
462 | #define mbytes(x) (((x) + 1048575) / 1048576) |
463 | if (channel && channel->manager && channel->manager->get_stats) { | |
464 | io_stats delta = 0; | |
465 | unsigned long long bytes_read = 0; | |
466 | unsigned long long bytes_written = 0; | |
467 | ||
468 | if (desc) | |
b0e91c89 | 469 | log_out(ctx, "%s: ", desc); |
6d96b00d TT |
470 | |
471 | channel->manager->get_stats(channel, &delta); | |
472 | if (delta) { | |
473 | bytes_read = delta->bytes_read - track->bytes_read; | |
efc6f628 | 474 | bytes_written = delta->bytes_written - |
6d96b00d TT |
475 | track->bytes_written; |
476 | } | |
b0e91c89 TT |
477 | log_out(ctx, "I/O read: %lluMB, write: %lluMB, " |
478 | "rate: %.2fMB/s\n", | |
479 | mbytes(bytes_read), mbytes(bytes_written), | |
480 | (double)mbytes(bytes_read + bytes_written) / | |
481 | timeval_subtract(&time_end, &track->time_start)); | |
6d96b00d | 482 | } |
3839e657 | 483 | } |
8bf191e8 | 484 | #endif /* RESOURCE_TRACK */ |
3839e657 | 485 | |
08b21301 | 486 | void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino, |
f3db3566 TT |
487 | struct ext2_inode * inode, const char *proc) |
488 | { | |
974d57d3 | 489 | errcode_t retval; |
f3db3566 | 490 | |
08b21301 | 491 | retval = ext2fs_read_inode(ctx->fs, ino, inode); |
f3db3566 TT |
492 | if (retval) { |
493 | com_err("ext2fs_read_inode", retval, | |
611378fe | 494 | _("while reading inode %lu in %s"), ino, proc); |
f8188fff | 495 | fatal_error(ctx, 0); |
f3db3566 TT |
496 | } |
497 | } | |
498 | ||
fefaef39 AD |
499 | void e2fsck_read_inode_full(e2fsck_t ctx, unsigned long ino, |
500 | struct ext2_inode *inode, int bufsize, | |
501 | const char *proc) | |
502 | { | |
974d57d3 | 503 | errcode_t retval; |
fefaef39 AD |
504 | |
505 | retval = ext2fs_read_inode_full(ctx->fs, ino, inode, bufsize); | |
506 | if (retval) { | |
507 | com_err("ext2fs_read_inode_full", retval, | |
611378fe | 508 | _("while reading inode %lu in %s"), ino, proc); |
fefaef39 AD |
509 | fatal_error(ctx, 0); |
510 | } | |
511 | } | |
512 | ||
f404167d TT |
513 | void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino, |
514 | struct ext2_inode * inode, int bufsize, | |
515 | const char *proc) | |
cebe48a1 | 516 | { |
974d57d3 | 517 | errcode_t retval; |
cebe48a1 TT |
518 | |
519 | retval = ext2fs_write_inode_full(ctx->fs, ino, inode, bufsize); | |
520 | if (retval) { | |
521 | com_err("ext2fs_write_inode", retval, | |
611378fe | 522 | _("while writing inode %lu in %s"), ino, proc); |
cebe48a1 TT |
523 | fatal_error(ctx, 0); |
524 | } | |
525 | } | |
526 | ||
f404167d TT |
527 | void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino, |
528 | struct ext2_inode * inode, const char *proc) | |
f3db3566 | 529 | { |
974d57d3 | 530 | errcode_t retval; |
f3db3566 | 531 | |
08b21301 | 532 | retval = ext2fs_write_inode(ctx->fs, ino, inode); |
f3db3566 TT |
533 | if (retval) { |
534 | com_err("ext2fs_write_inode", retval, | |
611378fe | 535 | _("while writing inode %lu in %s"), ino, proc); |
f8188fff | 536 | fatal_error(ctx, 0); |
f3db3566 TT |
537 | } |
538 | } | |
539 | ||
3839e657 TT |
540 | #ifdef MTRACE |
541 | void mtrace_print(char *mesg) | |
542 | { | |
543 | FILE *malloc_get_mallstream(); | |
544 | FILE *f = malloc_get_mallstream(); | |
545 | ||
546 | if (f) | |
547 | fprintf(f, "============= %s\n", mesg); | |
548 | } | |
549 | #endif | |
550 | ||
4dbfd79d DW |
551 | blk64_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name, |
552 | io_manager manager) | |
1b6bf175 | 553 | { |
f1a1761d TT |
554 | struct ext2_super_block *sb; |
555 | io_channel io = NULL; | |
fae9bfaa | 556 | void *buf = NULL; |
f1a1761d | 557 | int blocksize; |
4dbfd79d | 558 | blk64_t superblock, ret_sb = 8193; |
efc6f628 | 559 | |
f1a1761d TT |
560 | if (fs && fs->super) { |
561 | ret_sb = (fs->super->s_blocks_per_group + | |
562 | fs->super->s_first_data_block); | |
563 | if (ctx) { | |
564 | ctx->superblock = ret_sb; | |
565 | ctx->blocksize = fs->blocksize; | |
566 | } | |
567 | return ret_sb; | |
568 | } | |
efc6f628 | 569 | |
f1a1761d TT |
570 | if (ctx) { |
571 | if (ctx->blocksize) { | |
572 | ret_sb = ctx->blocksize * 8; | |
573 | if (ctx->blocksize == 1024) | |
574 | ret_sb++; | |
575 | ctx->superblock = ret_sb; | |
576 | return ret_sb; | |
577 | } | |
578 | ctx->superblock = ret_sb; | |
579 | ctx->blocksize = 1024; | |
580 | } | |
581 | ||
582 | if (!name || !manager) | |
583 | goto cleanup; | |
584 | ||
585 | if (manager->open(name, 0, &io) != 0) | |
586 | goto cleanup; | |
587 | ||
588 | if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf)) | |
589 | goto cleanup; | |
590 | sb = (struct ext2_super_block *) buf; | |
591 | ||
932a489c AD |
592 | for (blocksize = EXT2_MIN_BLOCK_SIZE; |
593 | blocksize <= EXT2_MAX_BLOCK_SIZE ; blocksize *= 2) { | |
f1a1761d TT |
594 | superblock = blocksize*8; |
595 | if (blocksize == 1024) | |
596 | superblock++; | |
597 | io_channel_set_blksize(io, blocksize); | |
24a117ab | 598 | if (io_channel_read_blk64(io, superblock, |
f1a1761d TT |
599 | -SUPERBLOCK_SIZE, buf)) |
600 | continue; | |
2eae0930 | 601 | #ifdef WORDS_BIGENDIAN |
f1a1761d TT |
602 | if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC)) |
603 | ext2fs_swap_super(sb); | |
604 | #endif | |
e7b5d3c0 DD |
605 | if ((sb->s_magic == EXT2_SUPER_MAGIC) && |
606 | (EXT2_BLOCK_SIZE(sb) == blocksize)) { | |
557ddb2f TT |
607 | ret_sb = superblock; |
608 | if (ctx) { | |
609 | ctx->superblock = superblock; | |
610 | ctx->blocksize = blocksize; | |
611 | } | |
f1a1761d TT |
612 | break; |
613 | } | |
614 | } | |
615 | ||
616 | cleanup: | |
617 | if (io) | |
618 | io_channel_close(io); | |
619 | if (buf) | |
620 | ext2fs_free_mem(&buf); | |
621 | return (ret_sb); | |
1b6bf175 | 622 | } |
3839e657 | 623 | |
6fdc7a32 TT |
624 | /* |
625 | * Given a mode, return the ext2 file type | |
626 | */ | |
627 | int ext2_file_type(unsigned int mode) | |
628 | { | |
629 | if (LINUX_S_ISREG(mode)) | |
630 | return EXT2_FT_REG_FILE; | |
631 | ||
632 | if (LINUX_S_ISDIR(mode)) | |
633 | return EXT2_FT_DIR; | |
efc6f628 | 634 | |
6fdc7a32 TT |
635 | if (LINUX_S_ISCHR(mode)) |
636 | return EXT2_FT_CHRDEV; | |
efc6f628 | 637 | |
6fdc7a32 TT |
638 | if (LINUX_S_ISBLK(mode)) |
639 | return EXT2_FT_BLKDEV; | |
efc6f628 | 640 | |
6fdc7a32 TT |
641 | if (LINUX_S_ISLNK(mode)) |
642 | return EXT2_FT_SYMLINK; | |
643 | ||
644 | if (LINUX_S_ISFIFO(mode)) | |
645 | return EXT2_FT_FIFO; | |
efc6f628 | 646 | |
6fdc7a32 TT |
647 | if (LINUX_S_ISSOCK(mode)) |
648 | return EXT2_FT_SOCK; | |
efc6f628 | 649 | |
6fdc7a32 TT |
650 | return 0; |
651 | } | |
49a7360b | 652 | |
80875db5 TT |
653 | /* |
654 | * Check to see if a filesystem is in /proc/filesystems. | |
655 | * Returns 1 if found, 0 if not | |
656 | */ | |
657 | int fs_proc_check(const char *fs_name) | |
658 | { | |
659 | FILE *f; | |
660 | char buf[80], *cp, *t; | |
661 | ||
662 | f = fopen("/proc/filesystems", "r"); | |
663 | if (!f) | |
664 | return (0); | |
665 | while (!feof(f)) { | |
666 | if (!fgets(buf, sizeof(buf), f)) | |
667 | break; | |
668 | cp = buf; | |
669 | if (!isspace(*cp)) { | |
670 | while (*cp && !isspace(*cp)) | |
671 | cp++; | |
672 | } | |
673 | while (*cp && isspace(*cp)) | |
674 | cp++; | |
675 | if ((t = strchr(cp, '\n')) != NULL) | |
676 | *t = 0; | |
677 | if ((t = strchr(cp, '\t')) != NULL) | |
678 | *t = 0; | |
679 | if ((t = strchr(cp, ' ')) != NULL) | |
680 | *t = 0; | |
681 | if (!strcmp(fs_name, cp)) { | |
682 | fclose(f); | |
683 | return (1); | |
684 | } | |
685 | } | |
686 | fclose(f); | |
687 | return (0); | |
688 | } | |
689 | ||
690 | /* | |
691 | * Check to see if a filesystem is available as a module | |
692 | * Returns 1 if found, 0 if not | |
693 | */ | |
694 | int check_for_modules(const char *fs_name) | |
695 | { | |
696 | #ifdef __linux__ | |
697 | struct utsname uts; | |
698 | FILE *f; | |
699 | char buf[1024], *cp, *t; | |
700 | int i; | |
701 | ||
702 | if (uname(&uts)) | |
703 | return (0); | |
704 | snprintf(buf, sizeof(buf), "/lib/modules/%s/modules.dep", uts.release); | |
705 | ||
706 | f = fopen(buf, "r"); | |
707 | if (!f) | |
708 | return (0); | |
709 | while (!feof(f)) { | |
710 | if (!fgets(buf, sizeof(buf), f)) | |
711 | break; | |
712 | if ((cp = strchr(buf, ':')) != NULL) | |
713 | *cp = 0; | |
714 | else | |
715 | continue; | |
716 | if ((cp = strrchr(buf, '/')) != NULL) | |
717 | cp++; | |
f2fe5da3 ES |
718 | else |
719 | cp = buf; | |
80875db5 TT |
720 | i = strlen(cp); |
721 | if (i > 3) { | |
722 | t = cp + i - 3; | |
723 | if (!strcmp(t, ".ko")) | |
724 | *t = 0; | |
725 | } | |
726 | if (!strcmp(cp, fs_name)) { | |
727 | fclose(f); | |
728 | return (1); | |
729 | } | |
730 | } | |
731 | fclose(f); | |
732 | #endif /* __linux__ */ | |
733 | return (0); | |
734 | } | |
b0258cbc TT |
735 | |
736 | /* | |
737 | * Helper function that does the right thing if write returns a | |
738 | * partial write, or an EGAIN/EINTR error. | |
739 | */ | |
740 | int write_all(int fd, char *buf, size_t count) | |
741 | { | |
742 | ssize_t ret; | |
743 | int c = 0; | |
744 | ||
745 | while (count > 0) { | |
746 | ret = write(fd, buf, count); | |
747 | if (ret < 0) { | |
748 | if ((errno == EAGAIN) || (errno == EINTR)) | |
749 | continue; | |
750 | return -1; | |
751 | } | |
752 | count -= ret; | |
753 | buf += ret; | |
754 | c += ret; | |
755 | } | |
756 | return c; | |
757 | } | |
0f5eba75 AD |
758 | |
759 | void dump_mmp_msg(struct mmp_struct *mmp, const char *msg) | |
760 | { | |
761 | ||
762 | if (msg) | |
763 | printf("MMP check failed: %s\n", msg); | |
764 | if (mmp) { | |
765 | time_t t = mmp->mmp_time; | |
766 | ||
767 | printf("MMP error info: last update: %s node: %s device: %s\n", | |
768 | ctime(&t), mmp->mmp_nodename, mmp->mmp_bdevname); | |
769 | } | |
770 | } | |
771 | ||
772 | errcode_t e2fsck_mmp_update(ext2_filsys fs) | |
773 | { | |
774 | errcode_t retval; | |
775 | ||
776 | retval = ext2fs_mmp_update(fs); | |
777 | if (retval == EXT2_ET_MMP_CHANGE_ABORT) | |
778 | dump_mmp_msg(fs->mmp_cmp, | |
779 | _("UNEXPECTED INCONSISTENCY: the filesystem is " | |
780 | "being modified while fsck is running.\n")); | |
781 | ||
782 | return retval; | |
783 | } | |
830b44f4 TT |
784 | |
785 | void e2fsck_set_bitmap_type(ext2_filsys fs, unsigned int default_type, | |
786 | const char *profile_name, unsigned int *old_type) | |
787 | { | |
788 | unsigned type; | |
93d0db34 | 789 | e2fsck_t ctx = (e2fsck_t) fs->priv_data; |
830b44f4 TT |
790 | |
791 | if (old_type) | |
792 | *old_type = fs->default_bitmap_type; | |
93d0db34 TT |
793 | profile_get_uint(ctx->profile, "bitmaps", profile_name, 0, |
794 | default_type, &type); | |
795 | profile_get_uint(ctx->profile, "bitmaps", "all", 0, type, &type); | |
830b44f4 TT |
796 | fs->default_bitmap_type = type ? type : default_type; |
797 | } | |
798 | ||
799 | errcode_t e2fsck_allocate_inode_bitmap(ext2_filsys fs, const char *descr, | |
800 | int deftype, | |
801 | const char *name, | |
802 | ext2fs_inode_bitmap *ret) | |
803 | { | |
804 | errcode_t retval; | |
805 | unsigned int save_type; | |
806 | ||
807 | e2fsck_set_bitmap_type(fs, deftype, name, &save_type); | |
808 | retval = ext2fs_allocate_inode_bitmap(fs, descr, ret); | |
809 | fs->default_bitmap_type = save_type; | |
810 | return retval; | |
811 | } | |
812 | ||
813 | errcode_t e2fsck_allocate_block_bitmap(ext2_filsys fs, const char *descr, | |
814 | int deftype, | |
815 | const char *name, | |
816 | ext2fs_block_bitmap *ret) | |
817 | { | |
818 | errcode_t retval; | |
819 | unsigned int save_type; | |
820 | ||
821 | e2fsck_set_bitmap_type(fs, deftype, name, &save_type); | |
822 | retval = ext2fs_allocate_block_bitmap(fs, descr, ret); | |
823 | fs->default_bitmap_type = save_type; | |
824 | return retval; | |
825 | } | |
826 | ||
827 | errcode_t e2fsck_allocate_subcluster_bitmap(ext2_filsys fs, const char *descr, | |
828 | int deftype, | |
829 | const char *name, | |
830 | ext2fs_block_bitmap *ret) | |
831 | { | |
832 | errcode_t retval; | |
833 | unsigned int save_type; | |
834 | ||
835 | e2fsck_set_bitmap_type(fs, deftype, name, &save_type); | |
836 | retval = ext2fs_allocate_subcluster_bitmap(fs, descr, ret); | |
837 | fs->default_bitmap_type = save_type; | |
838 | return retval; | |
839 | } | |
79614b27 DW |
840 | |
841 | /* Return memory size in bytes */ | |
842 | unsigned long long get_memory_size(void) | |
843 | { | |
844 | #if defined(_SC_PHYS_PAGES) | |
845 | # if defined(_SC_PAGESIZE) | |
846 | return (unsigned long long)sysconf(_SC_PHYS_PAGES) * | |
847 | (unsigned long long)sysconf(_SC_PAGESIZE); | |
848 | # elif defined(_SC_PAGE_SIZE) | |
849 | return (unsigned long long)sysconf(_SC_PHYS_PAGES) * | |
850 | (unsigned long long)sysconf(_SC_PAGE_SIZE); | |
851 | # endif | |
852 | #elif defined(CTL_HW) | |
853 | # if (defined(HW_MEMSIZE) || defined(HW_PHYSMEM64)) | |
854 | # define CTL_HW_INT64 | |
855 | # elif (defined(HW_PHYSMEM) || defined(HW_REALMEM)) | |
856 | # define CTL_HW_UINT | |
857 | # endif | |
858 | int mib[2]; | |
859 | ||
860 | mib[0] = CTL_HW; | |
861 | # if defined(HW_MEMSIZE) | |
862 | mib[1] = HW_MEMSIZE; | |
863 | # elif defined(HW_PHYSMEM64) | |
864 | mib[1] = HW_PHYSMEM64; | |
865 | # elif defined(HW_REALMEM) | |
866 | mib[1] = HW_REALMEM; | |
867 | # elif defined(HW_PYSMEM) | |
868 | mib[1] = HW_PHYSMEM; | |
869 | # endif | |
870 | # if defined(CTL_HW_INT64) | |
871 | unsigned long long size = 0; | |
872 | # elif defined(CTL_HW_UINT) | |
873 | unsigned int size = 0; | |
874 | # endif | |
875 | # if defined(CTL_HW_INT64) || defined(CTL_HW_UINT) | |
876 | size_t len = sizeof(size); | |
877 | ||
878 | if (sysctl(mib, 2, &size, &len, NULL, 0) == 0) | |
879 | return (unsigned long long)size; | |
880 | # endif | |
881 | return 0; | |
882 | #else | |
883 | # warning "Don't know how to detect memory on your platform?" | |
884 | return 0; | |
885 | #endif | |
886 | } |