2 * badblocks.c - Bad blocks checker
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright 1995, 1996, 1997, 1998, 1999 by Theodore Ts'o
9 * Copyright 1999 by David Beattie
11 * This file is based on the minix file system programs fsck and mkfs
12 * written and copyrighted by Linus Torvalds <Linus.Torvalds@cs.helsinki.fi>
15 * This file may be redistributed under the terms of the GNU Public
22 * 93/05/26 - Creation from e2fsck
23 * 94/02/27 - Made a separate bad blocks checker
24 * 99/06/30...99/07/26 - Added non-destructive write-testing,
25 * configurable blocks-at-once parameter,
26 * loading of badblocks list to avoid testing
27 * blocks known to be bad, multiple passes to
28 * make sure that no new blocks are added to the
29 * list. (Work done by David Beattie)
33 #define _GNU_SOURCE /* for O_DIRECT */
58 #include <sys/ioctl.h>
59 #include <sys/types.h>
61 #include "et/com_err.h"
62 #include "ext2fs/ext2_io.h"
63 #include "ext2fs/ext2_fs.h"
64 #include "ext2fs/ext2fs.h"
65 #include "support/nls-enable.h"
71 /* Maximum number of bad blocks we support */
72 #define MAX_BAD_BLOCKS (INT_MAX/2)
74 static const char * program_name = "badblocks";
75 static const char * done_string = N_("done \n");
77 static int v_flag; /* verbose */
78 static int w_flag; /* do r/w test: 0=no, 1=yes,
79 * 2=non-destructive */
80 static int s_flag; /* show progress of test */
81 static int force; /* force check of mounted device */
82 static int t_flag; /* number of test patterns */
83 static int t_max; /* allocated test patterns */
84 static unsigned int *t_patts; /* test patterns */
85 static int use_buffered_io;
86 static int exclusive_ok;
87 static unsigned int max_bb = MAX_BAD_BLOCKS; /* Abort test if more than this
88 * number of bad blocks has been
90 static unsigned int d_flag; /* delay factor between reads */
91 static struct timeval time_start;
95 static unsigned int sys_page_size = 4096;
97 static void usage(void)
100 "Usage: %s [-b block_size] [-i input_file] [-o output_file] [-svwnfBX]\n"
101 " [-c blocks_at_once] [-d delay_factor_between_reads] [-e max_bad_blocks]\n"
102 " [-p num_passes] [-t test_pattern [-t test_pattern [...]]]\n"
103 " device [last_block [first_block]]\n"),
108 static void exclusive_usage(void)
111 _("%s: The -n and -w options are mutually exclusive.\n\n"),
116 static blk_t currently_testing = 0;
117 static blk_t num_blocks = 0;
118 static blk_t num_read_errors = 0;
119 static blk_t num_write_errors = 0;
120 static blk_t num_corruption_errors = 0;
121 static ext2_badblocks_list bb_list = NULL;
123 static blk_t next_bad = 0;
124 static ext2_badblocks_iterate bb_iter = NULL;
126 enum error_types { READ_ERROR, WRITE_ERROR, CORRUPTION_ERROR };
128 static void *allocate_buffer(size_t size)
132 #ifdef HAVE_POSIX_MEMALIGN
133 if (posix_memalign(&ret, sys_page_size, size) != 0)
137 ret = memalign(sys_page_size, size);
141 #endif /* HAVE_VALLOC */
142 #endif /* HAVE_MEMALIGN */
143 #endif /* HAVE_POSIX_MEMALIGN */
152 * This routine reports a new bad block. If the bad block has already
153 * been seen before, then it returns 0; otherwise it returns 1.
155 static int bb_output (blk_t bad, enum error_types error_type)
159 if (ext2fs_badblocks_list_test(bb_list, bad))
162 fprintf(out, "%lu\n", (unsigned long) bad);
165 errcode = ext2fs_badblocks_list_add (bb_list, bad);
167 com_err (program_name, errcode, "adding to in-memory bad block list");
172 increment the iteration through the bb_list if
173 an element was just added before the current iteration
174 position. This should not cause next_bad to change. */
175 if (bb_iter && bad < next_bad)
176 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
178 if (error_type == READ_ERROR) {
180 } else if (error_type == WRITE_ERROR) {
182 } else if (error_type == CORRUPTION_ERROR) {
183 num_corruption_errors++;
188 static char *time_diff_format(struct timeval *tv1,
189 struct timeval *tv2, char *buf)
191 time_t diff = (tv1->tv_sec - tv2->tv_sec);
200 sprintf(buf, "%d:%02d:%02d", hr, min, sec);
202 sprintf(buf, "%d:%02d", min, sec);
206 static float calc_percent(unsigned long current, unsigned long total) {
210 if (current >= total) {
213 percent=(100.0*(float)current/(float)total);
218 static void print_status(void)
220 struct timeval time_end;
221 char diff_buf[32], line_buf[128];
223 wchar_t wline_buf[128];
227 gettimeofday(&time_end, 0);
228 len = snprintf(line_buf, sizeof(line_buf),
229 _("%6.2f%% done, %s elapsed. "
230 "(%d/%d/%d errors)"),
231 calc_percent((unsigned long) currently_testing,
232 (unsigned long) num_blocks),
233 time_diff_format(&time_end, &time_start, diff_buf),
236 num_corruption_errors);
238 mbstowcs(wline_buf, line_buf, sizeof(line_buf));
239 len = wcswidth(wline_buf, sizeof(line_buf));
241 len = strlen(line_buf); /* Should never happen... */
243 fputs(line_buf, stderr);
244 memset(line_buf, '\b', len);
246 fputs(line_buf, stderr);
250 static void alarm_intr(int alnum EXT2FS_ATTR((unused)))
252 signal (SIGALRM, alarm_intr);
259 static void *terminate_addr = NULL;
261 static void terminate_intr(int signo EXT2FS_ATTR((unused)))
264 fprintf(stderr, "\n\nInterrupted at block %llu\n",
265 (unsigned long long) currently_testing);
268 longjmp(terminate_addr,1);
272 static void capture_terminate(jmp_buf term_addr)
274 terminate_addr = term_addr;
275 signal (SIGHUP, terminate_intr);
276 signal (SIGINT, terminate_intr);
277 signal (SIGPIPE, terminate_intr);
278 signal (SIGTERM, terminate_intr);
279 signal (SIGUSR1, terminate_intr);
280 signal (SIGUSR2, terminate_intr);
283 static void uncapture_terminate(void)
285 terminate_addr = NULL;
286 signal (SIGHUP, SIG_DFL);
287 signal (SIGINT, SIG_DFL);
288 signal (SIGPIPE, SIG_DFL);
289 signal (SIGTERM, SIG_DFL);
290 signal (SIGUSR1, SIG_DFL);
291 signal (SIGUSR2, SIG_DFL);
294 /* Linux requires that O_DIRECT I/Os be 512-byte sector aligned */
296 #define O_DIRECT_SIZE 512
298 static void set_o_direct(int dev, unsigned char *buffer, size_t size,
302 static int current_O_DIRECT; /* Current status of O_DIRECT flag */
303 int new_flag = O_DIRECT;
306 if ((use_buffered_io != 0) ||
307 (((unsigned long) buffer & (sys_page_size - 1)) != 0) ||
308 ((size & (sys_page_size - 1)) != 0) ||
309 ((offset & (O_DIRECT_SIZE - 1)) != 0))
312 if (new_flag != current_O_DIRECT) {
313 /* printf("%s O_DIRECT\n", new_flag ? "Setting" : "Clearing"); */
314 flag = fcntl(dev, F_GETFL);
316 flag = (flag & ~O_DIRECT) | new_flag;
317 if (fcntl(dev, F_SETFL, flag) < 0)
318 perror("set_o_direct");
320 current_O_DIRECT = new_flag;
326 static void pattern_fill(unsigned char *buffer, unsigned int pattern,
330 unsigned char bpattern[sizeof(pattern)], *ptr;
332 if (pattern == (unsigned int) ~0) {
333 for (ptr = buffer; ptr < buffer + n; ptr++) {
334 (*ptr) = random() % (1 << (8 * sizeof(char)));
337 fputs(_("Testing with random pattern: "), stderr);
340 for (i = 0; i < sizeof(bpattern); i++) {
343 bpattern[i] = pattern & 0xFF;
344 pattern = pattern >> 8;
347 for (ptr = buffer, i = nb; ptr < buffer + n; ptr++) {
354 if (s_flag | v_flag) {
355 fputs(_("Testing with pattern 0x"), stderr);
356 for (i = 0; i <= nb; i++)
357 fprintf(stderr, "%02x", buffer[i]);
364 * Perform a read of a sequence of blocks; return the number of blocks
365 * successfully sequentially read.
367 static int do_read (int dev, unsigned char * buffer, int try, int block_size,
371 struct timeval tv1, tv2;
372 #define NANOSEC (1000000000L)
373 #define MILISEC (1000L)
376 printf("do_read: block %d, try %d\n", current_block, try);
378 set_o_direct(dev, buffer, try * block_size,
379 ((ext2_loff_t) current_block) * block_size);
384 /* Seek to the correct loc. */
385 if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
386 SEEK_SET) != (ext2_loff_t) current_block * block_size)
387 com_err (program_name, errno, "%s", _("during seek"));
391 gettimeofday(&tv1, NULL);
392 got = read (dev, buffer, (size_t) try * block_size);
394 gettimeofday(&tv2, NULL);
398 fprintf(stderr, _("Weird value (%ld) in do_read\n"), got);
400 if (d_flag && got == try) {
401 #ifdef HAVE_NANOSLEEP
403 ts.tv_sec = tv2.tv_sec - tv1.tv_sec;
404 ts.tv_nsec = (tv2.tv_usec - tv1.tv_usec) * MILISEC;
405 if (ts.tv_nsec < 0) {
406 ts.tv_nsec += NANOSEC;
409 /* increase/decrease the sleep time based on d_flag value */
410 ts.tv_sec = ts.tv_sec * d_flag / 100;
411 ts.tv_nsec = ts.tv_nsec * d_flag / 100;
412 if (ts.tv_nsec > NANOSEC) {
413 ts.tv_sec += ts.tv_nsec / NANOSEC;
414 ts.tv_nsec %= NANOSEC;
416 if (ts.tv_sec || ts.tv_nsec)
417 nanosleep(&ts, NULL);
421 tv.tv_sec = tv2.tv_sec - tv1.tv_sec;
422 tv.tv_usec = tv2.tv_usec - tv1.tv_usec;
423 tv.tv_sec = tv.tv_sec * d_flag / 100;
424 tv.tv_usec = tv.tv_usec * d_flag / 100;
425 if (tv.tv_usec > 1000000) {
426 tv.tv_sec += tv.tv_usec / 1000000;
427 tv.tv_usec %= 1000000;
440 * Perform a write of a sequence of blocks; return the number of blocks
441 * successfully sequentially written.
443 static int do_write(int dev, unsigned char * buffer, int try, int block_size,
444 unsigned long current_block)
449 printf("do_write: block %lu, try %d\n", current_block, try);
451 set_o_direct(dev, buffer, try * block_size,
452 ((ext2_loff_t) current_block) * block_size);
457 /* Seek to the correct loc. */
458 if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
459 SEEK_SET) != (ext2_loff_t) current_block * block_size)
460 com_err (program_name, errno, "%s", _("during seek"));
463 got = write (dev, buffer, (size_t) try * block_size);
467 fprintf(stderr, "Weird value (%ld) in do_write\n", got);
474 static void flush_bufs(void)
479 if (!use_buffered_io)
482 retval = ext2fs_sync_device(host_dev, 1);
484 com_err(program_name, retval, "%s",
485 _("during ext2fs_sync_device"));
488 static unsigned int test_ro (int dev, blk_t last_block,
489 int block_size, blk_t first_block,
490 unsigned int blocks_at_once)
492 unsigned char * blkbuf;
495 unsigned int bb_count = 0;
497 blk_t recover_block = ~0;
499 /* set up abend handler */
500 capture_terminate(NULL);
502 errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
504 com_err(program_name, errcode, "%s",
505 _("while beginning bad block list iteration"));
509 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
510 } while (next_bad && next_bad < first_block);
513 blkbuf = allocate_buffer(((size_t) blocks_at_once + 1) * block_size);
515 blkbuf = allocate_buffer((size_t) blocks_at_once * block_size);
519 com_err(program_name, ENOMEM, "%s",
520 _("while allocating buffers"));
524 fprintf(stderr, _("Checking blocks %lu to %lu\n"),
525 (unsigned long)first_block,
526 (unsigned long)last_block - 1);
529 fputs(_("Checking for bad blocks in read-only mode\n"), stderr);
530 pattern_fill(blkbuf + blocks_at_once * block_size,
531 t_patts[0], block_size);
534 try = blocks_at_once;
535 currently_testing = first_block;
536 num_blocks = last_block - 1;
537 if (!t_flag && (s_flag || v_flag))
538 fputs(_("Checking for bad blocks (read-only test): "), stderr);
539 if (s_flag && v_flag <= 1)
541 while (currently_testing < last_block)
543 if (bb_count >= max_bb) {
544 if (s_flag || v_flag) {
545 fputs(_("Too many bad blocks, aborting test\n"), stderr);
550 if (currently_testing == next_bad) {
551 /* fprintf (out, "%lu\n", nextbad); */
552 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
556 else if (currently_testing + try > next_bad)
557 try = next_bad - currently_testing;
559 if (currently_testing + try > last_block)
560 try = last_block - currently_testing;
561 got = do_read (dev, blkbuf, try, block_size, currently_testing);
563 /* test the comparison between all the
564 blocks successfully read */
566 for (i = 0; i < got; ++i)
567 if (memcmp (blkbuf+i*block_size,
568 blkbuf+blocks_at_once*block_size,
570 bb_count += bb_output(currently_testing + i, CORRUPTION_ERROR);
572 if (got == 0 && try == 1)
573 bb_count += bb_output(currently_testing++, READ_ERROR);
574 currently_testing += got;
577 if (recover_block == ~0U)
578 recover_block = currently_testing - got +
581 } else if (currently_testing == recover_block) {
582 try = blocks_at_once;
588 if (s_flag || v_flag)
589 fputs(_(done_string), stderr);
594 ext2fs_badblocks_list_iterate_end(bb_iter);
596 uncapture_terminate();
601 static unsigned int test_rw (int dev, blk_t last_block,
602 int block_size, blk_t first_block,
603 unsigned int blocks_at_once)
605 unsigned char *buffer, *read_buffer;
606 const unsigned int patterns[] = {0xaa, 0x55, 0xff, 0x00};
607 const unsigned int *pattern;
608 int i, try, got, nr_pattern, pat_idx;
609 unsigned int bb_count = 0;
610 blk_t recover_block = ~0;
612 /* set up abend handler */
613 capture_terminate(NULL);
615 buffer = allocate_buffer((size_t) 2 * blocks_at_once * block_size);
616 read_buffer = buffer + blocks_at_once * block_size;
619 com_err(program_name, ENOMEM, "%s",
620 _("while allocating buffers"));
627 fputs(_("Checking for bad blocks in read-write mode\n"),
629 fprintf(stderr, _("From block %lu to %lu\n"),
630 (unsigned long) first_block,
631 (unsigned long) last_block - 1);
638 nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
640 for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
641 pattern_fill(buffer, pattern[pat_idx],
642 blocks_at_once * block_size);
643 num_blocks = last_block - 1;
644 currently_testing = first_block;
645 if (s_flag && v_flag <= 1)
648 try = blocks_at_once;
649 while (currently_testing < last_block) {
650 if (bb_count >= max_bb) {
651 if (s_flag || v_flag) {
652 fputs(_("Too many bad blocks, aborting test\n"), stderr);
656 if (currently_testing + try > last_block)
657 try = last_block - currently_testing;
658 got = do_write(dev, buffer, try, block_size,
663 if (got == 0 && try == 1)
664 bb_count += bb_output(currently_testing++, WRITE_ERROR);
665 currently_testing += got;
668 if (recover_block == ~0U)
669 recover_block = currently_testing -
670 got + blocks_at_once;
672 } else if (currently_testing == recover_block) {
673 try = blocks_at_once;
681 fputs(_(done_string), stderr);
684 fputs(_("Reading and comparing: "), stderr);
685 num_blocks = last_block;
686 currently_testing = first_block;
687 if (s_flag && v_flag <= 1)
690 try = blocks_at_once;
691 while (currently_testing < last_block) {
692 if (bb_count >= max_bb) {
693 if (s_flag || v_flag) {
694 fputs(_("Too many bad blocks, aborting test\n"), stderr);
698 if (currently_testing + try > last_block)
699 try = last_block - currently_testing;
700 got = do_read (dev, read_buffer, try, block_size,
702 if (got == 0 && try == 1)
703 bb_count += bb_output(currently_testing++, READ_ERROR);
704 currently_testing += got;
707 if (recover_block == ~0U)
708 recover_block = currently_testing -
709 got + blocks_at_once;
711 } else if (currently_testing == recover_block) {
712 try = blocks_at_once;
715 for (i=0; i < got; i++) {
716 if (memcmp(read_buffer + i * block_size,
717 buffer + i * block_size,
719 bb_count += bb_output(currently_testing+i, CORRUPTION_ERROR);
728 fputs(_(done_string), stderr);
731 uncapture_terminate();
736 struct saved_blk_record {
741 static unsigned int test_nd (int dev, blk_t last_block,
742 int block_size, blk_t first_block,
743 unsigned int blocks_at_once)
745 unsigned char *blkbuf, *save_ptr, *test_ptr, *read_ptr;
746 unsigned char *test_base, *save_base, *read_base;
748 const unsigned int patterns[] = { ~0 };
749 const unsigned int *pattern;
750 int nr_pattern, pat_idx;
751 int got, used2, written;
752 blk_t save_currently_testing;
753 struct saved_blk_record *test_record;
754 /* This is static to prevent being clobbered by the longjmp */
755 static int num_saved;
756 jmp_buf terminate_env;
758 unsigned long buf_used;
759 static unsigned int bb_count;
760 unsigned int granularity = blocks_at_once;
761 blk_t recover_block = ~0U;
764 errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
766 com_err(program_name, errcode, "%s",
767 _("while beginning bad block list iteration"));
771 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
772 } while (next_bad && next_bad < first_block);
774 blkbuf = allocate_buffer((size_t) 3 * blocks_at_once * block_size);
775 test_record = malloc(blocks_at_once * sizeof(struct saved_blk_record));
776 if (!blkbuf || !test_record) {
777 com_err(program_name, ENOMEM, "%s",
778 _("while allocating buffers"));
783 test_base = blkbuf + (blocks_at_once * block_size);
784 read_base = blkbuf + (2 * blocks_at_once * block_size);
790 fputs(_("Checking for bad blocks in non-destructive read-write mode\n"), stderr);
791 fprintf (stderr, _("From block %lu to %lu\n"),
792 (unsigned long) first_block,
793 (unsigned long) last_block - 1);
795 if (s_flag || v_flag > 1) {
796 fputs(_("Checking for bad blocks (non-destructive read-write test)\n"), stderr);
798 if (setjmp(terminate_env)) {
800 * Abnormal termination by a signal is handled here.
802 signal (SIGALRM, SIG_IGN);
803 fputs(_("\nInterrupt caught, cleaning up\n"), stderr);
805 save_ptr = save_base;
806 for (i=0; i < num_saved; i++) {
807 do_write(dev, save_ptr, test_record[i].num,
808 block_size, test_record[i].block);
809 save_ptr += test_record[i].num * block_size;
815 /* set up abend handler */
816 capture_terminate(terminate_env);
823 nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
825 for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
826 pattern_fill(test_base, pattern[pat_idx],
827 blocks_at_once * block_size);
831 save_ptr = save_base;
832 test_ptr = test_base;
833 currently_testing = first_block;
834 num_blocks = last_block - 1;
835 if (s_flag && v_flag <= 1)
838 while (currently_testing < last_block) {
839 if (bb_count >= max_bb) {
840 if (s_flag || v_flag) {
841 fputs(_("Too many bad blocks, aborting test\n"), stderr);
845 got = try = granularity - buf_used;
847 if (currently_testing == next_bad) {
848 /* fprintf (out, "%lu\n", nextbad); */
849 ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
853 else if (currently_testing + try > next_bad)
854 try = next_bad - currently_testing;
856 if (currently_testing + try > last_block)
857 try = last_block - currently_testing;
858 got = do_read (dev, save_ptr, try, block_size,
861 if (recover_block == ~0U)
862 recover_block = currently_testing +
864 if (granularity != 1) {
868 /* First block must have been bad. */
869 bb_count += bb_output(currently_testing++, READ_ERROR);
874 * Note the fact that we've saved this much data
875 * *before* we overwrite it with test data
877 test_record[num_saved].block = currently_testing;
878 test_record[num_saved].num = got;
881 /* Write the test data */
882 written = do_write (dev, test_ptr, got, block_size,
885 com_err (program_name, errno,
886 _("during test data write, block %lu"),
887 (unsigned long) currently_testing +
891 save_ptr += got * block_size;
892 test_ptr += got * block_size;
893 currently_testing += got;
895 if (recover_block == ~0U)
896 recover_block = currently_testing -
897 got + blocks_at_once;
903 * If there's room for more blocks to be tested this
904 * around, and we're not done yet testing the disk, go
905 * back and get some more blocks.
907 if ((buf_used != granularity) &&
908 (currently_testing < last_block))
911 if (currently_testing >= recover_block) {
912 granularity = blocks_at_once;
917 save_currently_testing = currently_testing;
920 * for each contiguous block that we read into the
921 * buffer (and wrote test data into afterwards), read
922 * it back (looping if necessary, to get past newly
923 * discovered unreadable blocks, of which there should
924 * be none, but with a hard drive which is unreliable,
925 * it has happened), and compare with the test data
926 * that was written; output to the bad block list if
930 save_ptr = save_base;
931 test_ptr = test_base;
932 read_ptr = read_base;
937 if (used2 >= num_saved)
939 currently_testing = test_record[used2].block;
940 try = test_record[used2].num;
944 got = do_read (dev, read_ptr, try,
945 block_size, currently_testing);
947 /* test the comparison between all the
948 blocks successfully read */
949 for (i = 0; i < got; ++i)
950 if (memcmp (test_ptr+i*block_size,
951 read_ptr+i*block_size, block_size))
952 bb_count += bb_output(currently_testing + i, CORRUPTION_ERROR);
954 bb_count += bb_output(currently_testing + got, READ_ERROR);
958 /* write back original data */
959 do_write (dev, save_ptr, got,
960 block_size, currently_testing);
961 save_ptr += got * block_size;
963 currently_testing += got;
964 test_ptr += got * block_size;
965 read_ptr += got * block_size;
969 /* empty the buffer so it can be reused */
972 save_ptr = save_base;
973 test_ptr = test_base;
974 currently_testing = save_currently_testing;
978 if (s_flag || v_flag > 1)
979 fputs(_(done_string), stderr);
983 uncapture_terminate();
988 ext2fs_badblocks_list_iterate_end(bb_iter);
993 static void check_mount(char *device_name)
998 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
1000 com_err("ext2fs_check_if_mount", retval,
1001 _("while determining whether %s is mounted."),
1005 if (mount_flags & EXT2_MF_MOUNTED) {
1006 fprintf(stderr, _("%s is mounted; "), device_name);
1008 fputs(_("badblocks forced anyway. "
1009 "Hope /etc/mtab is incorrect.\n"), stderr);
1013 fputs(_("it's not safe to run badblocks!\n"), stderr);
1017 if ((mount_flags & EXT2_MF_BUSY) && !exclusive_ok) {
1018 fprintf(stderr, _("%s is apparently in use by the system; "),
1021 fputs(_("badblocks forced anyway.\n"), stderr);
1023 goto abort_badblocks;
1029 * This function will convert a string to an unsigned long, printing
1030 * an error message if it fails, and returning success or failure in err.
1032 static unsigned int parse_uint(const char *str, const char *descr)
1038 ret = strtoul(str, &tmp, 0);
1039 if (*tmp || errno) {
1040 com_err (program_name, 0, _("invalid %s - %s"), descr, str);
1042 } else if ((ret > UINT_MAX) ||
1043 (ret == ULONG_MAX && errno == ERANGE)) {
1044 com_err (program_name, 0, _("%s too large - %lu"), descr, ret);
1050 int main (int argc, char ** argv)
1054 char * host_device_name = NULL;
1055 char * input_file = NULL;
1056 char * output_file = NULL;
1058 unsigned int block_size = 1024;
1059 unsigned int blocks_at_once = 64;
1060 blk64_t last_block, first_block;
1062 int passes_clean = 0;
1065 unsigned int pattern;
1066 unsigned int (*test_func)(int, blk_t,
1071 unsigned long long inblk;
1073 setbuf(stdout, NULL);
1074 setbuf(stderr, NULL);
1076 setlocale(LC_MESSAGES, "");
1077 setlocale(LC_CTYPE, "");
1078 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1079 textdomain(NLS_CAT_NAME);
1080 set_com_err_gettext(gettext);
1082 srandom((unsigned int)time(NULL)); /* simple randomness is enough */
1083 test_func = test_ro;
1085 /* Determine the system page size if possible */
1087 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1088 #define _SC_PAGESIZE _SC_PAGE_SIZE
1091 sysval = sysconf(_SC_PAGESIZE);
1093 sys_page_size = sysval;
1094 #endif /* _SC_PAGESIZE */
1095 #endif /* HAVE_SYSCONF */
1098 program_name = *argv;
1101 while ((c = getopt (argc, argv, "b:d:e:fi:o:svwnc:p:h:t:BX")) != EOF) {
1104 block_size = parse_uint(optarg, "block size");
1110 input_file = optarg;
1113 output_file = optarg;
1124 test_func = test_rw;
1130 test_func = test_nd;
1134 blocks_at_once = parse_uint(optarg, "blocks at once");
1137 max_bb = parse_uint(optarg, "max bad block count");
1138 if (max_bb > MAX_BAD_BLOCKS) {
1139 com_err (program_name, 0,
1140 _("Too big max bad blocks count %u - "
1141 "maximum is %u"), max_bb,
1145 /* 0 really means unlimited but we cannot do that much... */
1147 max_bb = MAX_BAD_BLOCKS;
1150 d_flag = parse_uint(optarg, "read delay factor");
1153 num_passes = parse_uint(optarg,
1154 "number of clean passes");
1157 host_device_name = optarg;
1160 if (t_flag + 1 > t_max) {
1161 unsigned int *t_patts_new;
1163 t_patts_new = realloc(t_patts, sizeof(int) *
1166 com_err(program_name, ENOMEM,
1167 _("can't allocate memory for "
1168 "test_pattern - %s"),
1172 t_patts = t_patts_new;
1175 if (!strcmp(optarg, "r") || !strcmp(optarg,"random")) {
1176 t_patts[t_flag++] = ~0;
1178 pattern = parse_uint(optarg, "test pattern");
1179 if (pattern == (unsigned int) ~0)
1181 t_patts[t_flag++] = pattern;
1185 use_buffered_io = 1;
1196 com_err(program_name, 0, "%s",
1197 _("Maximum of one test_pattern may be "
1198 "specified in read-only mode"));
1201 if (t_patts && (t_patts[0] == (unsigned int) ~0)) {
1202 com_err(program_name, 0, "%s",
1203 _("Random test_pattern is not allowed "
1204 "in read-only mode"));
1208 if ((block_size == 0) || (block_size > (1 << 24)) ||
1209 (block_size & (block_size - 1))) {
1210 com_err(program_name, 0, _("Invalid block size: %u\n"),
1214 if (blocks_at_once == 0) {
1215 com_err(program_name, 0, _("Invalid number of blocks: %d\n"),
1218 } else if (((size_t) block_size * blocks_at_once) > SIZE_MAX / 3) {
1219 /* maximum usage is in test_nd() */
1220 com_err(program_name, 0, _("For block size %d, number of blocks too large: %d\n"),
1221 block_size, blocks_at_once);
1225 if (optind > argc - 1)
1227 device_name = argv[optind++];
1228 if (optind > argc - 1) {
1229 errcode = ext2fs_get_device_size2(device_name,
1232 if (errcode == EXT2_ET_UNIMPLEMENTED) {
1233 com_err(program_name, 0, "%s",
1234 _("Couldn't determine device size; you "
1235 "must specify\nthe size manually\n"));
1239 com_err(program_name, errcode, "%s",
1240 _("while trying to determine device size"));
1245 last_block = parse_uint(argv[optind], _("last block"));
1249 if (optind <= argc-1) {
1251 first_block = parse_uint(argv[optind], _("first block"));
1252 } else first_block = 0;
1253 if (first_block >= last_block) {
1254 com_err (program_name, 0, _("invalid starting block (%llu): must be less than %llu"),
1255 (unsigned long long) first_block,
1256 (unsigned long long) last_block);
1259 /* ext2 badblocks file can't handle large values */
1260 if (last_block >> 32) {
1261 com_err(program_name, EOVERFLOW,
1262 _("invalid end block (%llu): must be 32-bit value"),
1263 (unsigned long long) last_block);
1267 check_mount(device_name);
1269 gettimeofday(&time_start, 0);
1270 open_flag = O_LARGEFILE | (w_flag ? O_RDWR : O_RDONLY);
1271 dev = open (device_name, open_flag);
1273 com_err (program_name, errno, _("while trying to open %s"),
1277 if (host_device_name) {
1278 host_dev = open (host_device_name, open_flag);
1279 if (host_dev == -1) {
1280 com_err (program_name, errno,
1281 _("while trying to open %s"),
1288 if (strcmp (input_file, "-") == 0)
1291 in = fopen (input_file, "r");
1294 com_err (program_name, errno,
1295 _("while trying to open %s"),
1301 if (output_file && strcmp (output_file, "-") != 0)
1303 out = fopen (output_file, "w");
1306 com_err (program_name, errno,
1307 _("while trying to open %s"),
1315 errcode = ext2fs_badblocks_list_create(&bb_list,0);
1317 com_err(program_name, errcode, "%s",
1318 _("while creating in-memory bad blocks list"));
1324 switch (fscanf(in, "%llu\n", &inblk)) {
1326 com_err(program_name, 0, "%s",
1327 _("input file - bad format"));
1333 com_err(program_name,
1335 _("while adding to in-memory "
1340 errcode = ext2fs_badblocks_list_add(bb_list,next_bad);
1342 com_err(program_name, errcode,
1344 _("while adding to in-memory "
1358 unsigned int bb_count;
1360 bb_count = test_func(dev, last_block, (int) block_size,
1361 first_block, blocks_at_once);
1369 _("Pass completed, %u bad blocks found. (%d/%d/%d errors)\n"),
1370 bb_count, num_read_errors, num_write_errors, num_corruption_errors);
1372 } while (passes_clean < num_passes);