badblocks.c
上传用户:ygj115
上传日期:2007-08-07
资源大小:3078k
文件大小:27k
- /*
- * badblocks.c - Bad blocks checker
- *
- * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
- * Laboratoire MASI, Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * Copyright 1995, 1996, 1997, 1998, 1999 by Theodore Ts'o
- * Copyright 1999 by David Beattie
- *
- * This file is based on the minix file system programs fsck and mkfs
- * written and copyrighted by Linus Torvalds <Linus.Torvalds@cs.helsinki.fi>
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
- /*
- * History:
- * 93/05/26 - Creation from e2fsck
- * 94/02/27 - Made a separate bad blocks checker
- * 99/06/30...99/07/26 - Added non-destructive write-testing,
- * configurable blocks-at-once parameter,
- * loading of badblocks list to avoid testing
- * blocks known to be bad, multiple passes to
- * make sure that no new blocks are added to the
- * list. (Work done by David Beattie)
- */
- #define _GNU_SOURCE /* for O_DIRECT */
- #include <errno.h>
- #include <fcntl.h>
- #ifdef HAVE_GETOPT_H
- #include <getopt.h>
- #else
- extern char *optarg;
- extern int optind;
- #endif
- #include <signal.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include <setjmp.h>
- #include <time.h>
- #include <sys/ioctl.h>
- #include <sys/types.h>
- #include "et/com_err.h"
- #include "ext2fs/ext2_io.h"
- #include "ext2fs/ext2_fs.h"
- #include "ext2fs/ext2fs.h"
- #include "nls-enable.h"
- const char * program_name = "badblocks";
- const char * done_string = N_("done n");
- static int v_flag = 0; /* verbose */
- static int w_flag = 0; /* do r/w test: 0=no, 1=yes,
- * 2=non-destructive */
- static int s_flag = 0; /* show progress of test */
- static int force = 0; /* force check of mounted device */
- static int t_flag = 0; /* number of test patterns */
- static int t_max = 0; /* allocated test patterns */
- static unsigned long *t_patts = NULL; /* test patterns */
- static int current_O_DIRECT = 0; /* Current status of O_DIRECT flag */
- #define T_INC 32
- int sys_page_size = 4096;
- static void usage(void)
- {
- fprintf(stderr, _("Usage: %s [-b block_size] [-i input_file] [-o output_file] [-svwnf]n [-c blocks_at_once] [-p num_passes] [-t test_pattern [-t test_pattern [...]]]n device [last_block [start_block]]n"),
- program_name);
- exit (1);
- }
- static unsigned long currently_testing = 0;
- static unsigned long num_blocks = 0;
- static ext2_badblocks_list bb_list = NULL;
- static FILE *out;
- static blk_t next_bad = 0;
- static ext2_badblocks_iterate bb_iter = NULL;
- static void *allocate_buffer(size_t size)
- {
- void *ret = 0;
-
- #ifdef HAVE_POSIX_MEMALIGN
- if (posix_memalign(&ret, sys_page_size, size) < 0)
- ret = 0;
- #else
- #ifdef HAVE_MEMALIGN
- ret = memalign(sys_page_size, size);
- #else
- #ifdef HAVE_VALLOC
- ret = valloc(size);
- #endif /* HAVE_VALLOC */
- #endif /* HAVE_MEMALIGN */
- #endif /* HAVE_POSIX_MEMALIGN */
- if (!ret)
- ret = malloc(size);
- return ret;
- }
- /*
- * This routine reports a new bad block. If the bad block has already
- * been seen before, then it returns 0; otherwise it returns 1.
- */
- static int bb_output (unsigned long bad)
- {
- errcode_t errcode;
- if (ext2fs_badblocks_list_test(bb_list, bad))
- return 0;
- fprintf(out, "%lun", bad);
- fflush(out);
- errcode = ext2fs_badblocks_list_add (bb_list, bad);
- if (errcode) {
- com_err (program_name, errcode, "adding to in-memory bad block list");
- exit (1);
- }
- /* kludge:
- increment the iteration through the bb_list if
- an element was just added before the current iteration
- position. This should not cause next_bad to change. */
- if (bb_iter && bad < next_bad)
- ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
- return 1;
- }
- static void print_status(void)
- {
- fprintf(stderr, "%9ld/%9ld", currently_testing, num_blocks);
- fprintf(stderr, "bbbbbbbbbbbbbbbbbbb");
- fflush (stderr);
- }
- static void alarm_intr(int alnum EXT2FS_ATTR((unused)))
- {
- signal (SIGALRM, alarm_intr);
- alarm(1);
- if (!num_blocks)
- return;
- fprintf(stderr, "%9ld/%9ld", currently_testing, num_blocks);
- fprintf(stderr, "bbbbbbbbbbbbbbbbbbb");
- fflush (stderr);
- }
- static void *terminate_addr = NULL;
- static void terminate_intr(int signo EXT2FS_ATTR((unused)))
- {
- if (terminate_addr)
- longjmp(terminate_addr,1);
- exit(1);
- }
- static void capture_terminate(jmp_buf term_addr)
- {
- terminate_addr = term_addr;
- signal (SIGHUP, terminate_intr);
- signal (SIGINT, terminate_intr);
- signal (SIGPIPE, terminate_intr);
- signal (SIGTERM, terminate_intr);
- signal (SIGUSR1, terminate_intr);
- signal (SIGUSR2, terminate_intr);
- }
- static void uncapture_terminate(void)
- {
- terminate_addr = NULL;
- signal (SIGHUP, SIG_DFL);
- signal (SIGINT, SIG_DFL);
- signal (SIGPIPE, SIG_DFL);
- signal (SIGTERM, SIG_DFL);
- signal (SIGUSR1, SIG_DFL);
- signal (SIGUSR2, SIG_DFL);
- }
- static void set_o_direct(int dev, unsigned char *buffer, size_t size,
- unsigned long current_block)
- {
- #ifdef O_DIRECT
- int new_flag = O_DIRECT;
- int flag;
-
- if ((((unsigned long) buffer & (sys_page_size - 1)) != 0) ||
- ((size & (sys_page_size - 1)) != 0) ||
- ((current_block & ((sys_page_size >> 9)-1)) != 0))
- new_flag = 0;
- if (new_flag != current_O_DIRECT) {
- /* printf("%s O_DIRECTn", new_flag ? "Setting" : "Clearing"); */
- flag = fcntl(dev, F_GETFL);
- if (flag > 0) {
- flag = (flag & ~O_DIRECT) | new_flag;
- fcntl(dev, F_SETFL, flag);
- }
- current_O_DIRECT = new_flag;
- }
- #endif
- }
- static void pattern_fill(unsigned char *buffer, unsigned long pattern,
- size_t n)
- {
- unsigned int i, nb;
- unsigned char bpattern[sizeof(pattern)], *ptr;
-
- if (pattern == (unsigned long) ~0) {
- for (ptr = buffer; ptr < buffer + n; ptr++) {
- (*ptr) = random() % (1 << (8 * sizeof(char)));
- }
- if (s_flag | v_flag)
- fputs(_("Testing with random pattern: "), stderr);
- } else {
- bpattern[0] = 0;
- for (i = 0; i < sizeof(bpattern); i++) {
- if (pattern == 0)
- break;
- bpattern[i] = pattern & 0xFF;
- pattern = pattern >> 8;
- }
- nb = i ? (i-1) : 0;
- for (ptr = buffer, i = nb; ptr < buffer + n; ptr++) {
- *ptr = bpattern[i];
- if (i == 0)
- i = nb;
- else
- i--;
- }
- if (s_flag | v_flag) {
- fputs(_("Testing with pattern 0x"), stderr);
- for (i = 0; i <= nb; i++)
- fprintf(stderr, "%02x", buffer[i]);
- fputs(": ", stderr);
- }
- }
- }
- /*
- * Perform a read of a sequence of blocks; return the number of blocks
- * successfully sequentially read.
- */
- static long do_read (int dev, unsigned char * buffer, int try, int block_size,
- unsigned long current_block)
- {
- long got;
- set_o_direct(dev, buffer, try * block_size, current_block);
- if (v_flag > 1)
- print_status();
- /* Seek to the correct loc. */
- if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
- SEEK_SET) != (ext2_loff_t) current_block * block_size)
- com_err (program_name, errno, _("during seek"));
- /* Try the read */
- got = read (dev, buffer, try * block_size);
- if (got < 0)
- got = 0;
- if (got & 511)
- fprintf(stderr, _("Weird value (%ld) in do_readn"), got);
- got /= block_size;
- return got;
- }
- /*
- * Perform a write of a sequence of blocks; return the number of blocks
- * successfully sequentially written.
- */
- static long do_write (int dev, unsigned char * buffer, int try, int block_size,
- unsigned long current_block)
- {
- long got;
- set_o_direct(dev, buffer, try * block_size, current_block);
- if (v_flag > 1)
- print_status();
- /* Seek to the correct loc. */
- if (ext2fs_llseek (dev, (ext2_loff_t) current_block * block_size,
- SEEK_SET) != (ext2_loff_t) current_block * block_size)
- com_err (program_name, errno, _("during seek"));
- /* Try the write */
- got = write (dev, buffer, try * block_size);
- if (got < 0)
- got = 0;
- if (got & 511)
- fprintf(stderr, "Weird value (%ld) in do_writen", got);
- got /= block_size;
- return got;
- }
- static int host_dev;
- static void flush_bufs(void)
- {
- errcode_t retval;
- retval = ext2fs_sync_device(host_dev, 1);
- if (retval)
- com_err(program_name, retval, _("during ext2fs_sync_device"));
- }
- static unsigned int test_ro (int dev, unsigned long last_block,
- int block_size, unsigned long from_count,
- unsigned long blocks_at_once)
- {
- unsigned char * blkbuf;
- int try;
- long got;
- unsigned int bb_count = 0;
- errcode_t errcode;
- errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
- if (errcode) {
- com_err (program_name, errcode,
- _("while beginning bad block list iteration"));
- exit (1);
- }
- do {
- ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
- } while (next_bad && next_bad < from_count);
- if (t_flag) {
- blkbuf = allocate_buffer((blocks_at_once + 1) * block_size);
- } else {
- blkbuf = allocate_buffer(blocks_at_once * block_size);
- }
- if (!blkbuf)
- {
- com_err (program_name, ENOMEM, _("while allocating buffers"));
- exit (1);
- }
- if (v_flag) {
- fprintf (stderr, _("Checking blocks %lu to %lun"), from_count,
- last_block);
- }
- if (t_flag) {
- fputs(_("Checking for bad blocks in read-only moden"), stderr);
- pattern_fill(blkbuf + blocks_at_once * block_size,
- t_patts[0], block_size);
- }
- flush_bufs();
- try = blocks_at_once;
- currently_testing = from_count;
- num_blocks = last_block;
- if (!t_flag && (s_flag || v_flag)) {
- fputs(_("Checking for bad blocks (read-only test): "), stderr);
- if (v_flag <= 1)
- alarm_intr(SIGALRM);
- }
- while (currently_testing < last_block)
- {
- if (next_bad) {
- if (currently_testing == next_bad) {
- /* fprintf (out, "%lun", nextbad); */
- ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
- currently_testing++;
- continue;
- }
- else if (currently_testing + try > next_bad)
- try = next_bad - currently_testing;
- }
- if (currently_testing + try > last_block)
- try = last_block - currently_testing;
- got = do_read (dev, blkbuf, try, block_size, currently_testing);
- if (t_flag) {
- /* test the comparison between all the
- blocks successfully read */
- int i;
- for (i = 0; i < got; ++i)
- if (memcmp (blkbuf+i*block_size,
- blkbuf+blocks_at_once*block_size,
- block_size))
- bb_count += bb_output(currently_testing + i);
- }
- currently_testing += got;
- if (got == try) {
- try = blocks_at_once;
- /* recover page-aligned offset for O_DIRECT */
- if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
- && (currently_testing % (sys_page_size >> 9)!= 0))
- try -= (sys_page_size >> 9)
- - (currently_testing
- % (sys_page_size >> 9));
- continue;
- }
- else
- try = 1;
- if (got == 0) {
- bb_count += bb_output(currently_testing++);
- }
- }
- num_blocks = 0;
- alarm(0);
- if (s_flag || v_flag)
- fputs(done_string, stderr);
- fflush (stderr);
- free (blkbuf);
- ext2fs_badblocks_list_iterate_end(bb_iter);
- return bb_count;
- }
- static unsigned int test_rw (int dev, unsigned long last_block,
- int block_size, unsigned long from_count,
- unsigned long blocks_at_once)
- {
- unsigned char *buffer, *read_buffer;
- const unsigned long patterns[] = {0xaa, 0x55, 0xff, 0x00};
- const unsigned long *pattern;
- int i, try, got, nr_pattern, pat_idx;
- unsigned int bb_count = 0;
- buffer = allocate_buffer(2 * blocks_at_once * block_size);
- read_buffer = buffer + blocks_at_once * block_size;
-
- if (!buffer) {
- com_err (program_name, ENOMEM, _("while allocating buffers"));
- exit (1);
- }
- flush_bufs();
- if (v_flag) {
- fputs(_("Checking for bad blocks in read-write moden"),
- stderr);
- fprintf(stderr, _("From block %lu to %lun"),
- from_count, last_block);
- }
- if (t_flag) {
- pattern = t_patts;
- nr_pattern = t_flag;
- } else {
- pattern = patterns;
- nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
- }
- for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
- pattern_fill(buffer, pattern[pat_idx],
- blocks_at_once * block_size);
- num_blocks = last_block;
- currently_testing = from_count;
- if (s_flag && v_flag <= 1)
- alarm_intr(SIGALRM);
- try = blocks_at_once;
- while (currently_testing < last_block) {
- if (currently_testing + try > last_block)
- try = last_block - currently_testing;
- got = do_write(dev, buffer, try, block_size,
- currently_testing);
- if (v_flag > 1)
- print_status();
- currently_testing += got;
- if (got == try) {
- try = blocks_at_once;
- /* recover page-aligned offset for O_DIRECT */
- if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
- && (currently_testing %
- (sys_page_size >> 9)!= 0))
- try -= (sys_page_size >> 9)
- - (currently_testing
- % (sys_page_size >> 9));
- continue;
- } else
- try = 1;
- if (got == 0) {
- bb_count += bb_output(currently_testing++);
- }
- }
-
- num_blocks = 0;
- alarm (0);
- if (s_flag | v_flag)
- fputs(done_string, stderr);
- flush_bufs();
- if (s_flag | v_flag)
- fputs(_("Reading and comparing: "), stderr);
- num_blocks = last_block;
- currently_testing = from_count;
- if (s_flag && v_flag <= 1)
- alarm_intr(SIGALRM);
- try = blocks_at_once;
- while (currently_testing < last_block) {
- if (currently_testing + try > last_block)
- try = last_block - currently_testing;
- got = do_read (dev, read_buffer, try, block_size,
- currently_testing);
- if (got == 0) {
- bb_count += bb_output(currently_testing++);
- continue;
- }
- for (i=0; i < got; i++) {
- if (memcmp(read_buffer + i * block_size,
- buffer + i * block_size,
- block_size))
- bb_count += bb_output(currently_testing+i);
- }
- currently_testing += got;
- /* recover page-aligned offset for O_DIRECT */
- if ( blocks_at_once >= (unsigned long) (sys_page_size >> 9)
- && (currently_testing % (sys_page_size >> 9)!= 0))
- try = blocks_at_once - (sys_page_size >> 9)
- - (currently_testing
- % (sys_page_size >> 9));
- else
- try = blocks_at_once;
- if (v_flag > 1)
- print_status();
- }
-
- num_blocks = 0;
- alarm (0);
- if (s_flag | v_flag)
- fputs(done_string, stderr);
- flush_bufs();
- }
- uncapture_terminate();
- free(buffer);
- return bb_count;
- }
- struct saved_blk_record {
- blk_t block;
- int num;
- };
- static unsigned int test_nd (int dev, unsigned long last_block,
- int block_size, unsigned long from_count,
- unsigned long blocks_at_once)
- {
- unsigned char *blkbuf, *save_ptr, *test_ptr, *read_ptr;
- unsigned char *test_base, *save_base, *read_base;
- int try, i;
- const unsigned long patterns[] = { ~0 };
- const unsigned long *pattern;
- int nr_pattern, pat_idx;
- long got, used2, written, save_currently_testing;
- struct saved_blk_record *test_record;
- /* This is static to prevent being clobbered by the longjmp */
- static int num_saved;
- jmp_buf terminate_env;
- errcode_t errcode;
- unsigned long buf_used;
- static unsigned int bb_count;
- bb_count = 0;
- errcode = ext2fs_badblocks_list_iterate_begin(bb_list,&bb_iter);
- if (errcode) {
- com_err (program_name, errcode,
- _("while beginning bad block list iteration"));
- exit (1);
- }
- do {
- ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
- } while (next_bad && next_bad < from_count);
- blkbuf = allocate_buffer(3 * blocks_at_once * block_size);
- test_record = malloc (blocks_at_once*sizeof(struct saved_blk_record));
- if (!blkbuf || !test_record) {
- com_err(program_name, ENOMEM, _("while allocating buffers"));
- exit (1);
- }
- save_base = blkbuf;
- test_base = blkbuf + (blocks_at_once * block_size);
- read_base = blkbuf + (2 * blocks_at_once * block_size);
-
- num_saved = 0;
- flush_bufs();
- if (v_flag) {
- fputs(_("Checking for bad blocks in non-destructive read-write moden"), stderr);
- fprintf (stderr, _("From block %lu to %lun"), from_count, last_block);
- }
- if (s_flag || v_flag > 1) {
- fputs(_("Checking for bad blocks (non-destructive read-write test)n"), stderr);
- }
- if (setjmp(terminate_env)) {
- /*
- * Abnormal termination by a signal is handled here.
- */
- signal (SIGALRM, SIG_IGN);
- fputs(_("nInterrupt caught, cleaning upn"), stderr);
- save_ptr = save_base;
- for (i=0; i < num_saved; i++) {
- do_write(dev, save_ptr, test_record[i].num,
- block_size, test_record[i].block);
- save_ptr += test_record[i].num * block_size;
- }
- fflush (out);
- exit(1);
- }
-
- /* set up abend handler */
- capture_terminate(terminate_env);
- if (t_flag) {
- pattern = t_patts;
- nr_pattern = t_flag;
- } else {
- pattern = patterns;
- nr_pattern = sizeof(patterns) / sizeof(patterns[0]);
- }
- for (pat_idx = 0; pat_idx < nr_pattern; pat_idx++) {
- pattern_fill(test_base, pattern[pat_idx],
- blocks_at_once * block_size);
- buf_used = 0;
- bb_count = 0;
- save_ptr = save_base;
- test_ptr = test_base;
- currently_testing = from_count;
- num_blocks = last_block;
- if (s_flag && v_flag <= 1)
- alarm_intr(SIGALRM);
- while (currently_testing < last_block) {
- got = try = blocks_at_once - buf_used;
- if (next_bad) {
- if (currently_testing == next_bad) {
- /* fprintf (out, "%lun", nextbad); */
- ext2fs_badblocks_list_iterate (bb_iter, &next_bad);
- currently_testing++;
- goto check_for_more;
- }
- else if (currently_testing + try > next_bad)
- try = next_bad - currently_testing;
- }
- if (currently_testing + try > last_block)
- try = last_block - currently_testing;
- got = do_read (dev, save_ptr, try, block_size,
- currently_testing);
- if (got == 0) {
- /* First block must have been bad. */
- bb_count += bb_output(currently_testing++);
- goto check_for_more;
- }
- /*
- * Note the fact that we've saved this much data
- * *before* we overwrite it with test data
- */
- test_record[num_saved].block = currently_testing;
- test_record[num_saved].num = got;
- num_saved++;
- /* Write the test data */
- written = do_write (dev, test_ptr, got, block_size,
- currently_testing);
- if (written != got)
- com_err (program_name, errno,
- _("during test data write, block %lu"),
- currently_testing + written);
- buf_used += got;
- save_ptr += got * block_size;
- test_ptr += got * block_size;
- currently_testing += got;
- if (got != try)
- bb_count += bb_output(currently_testing++);
- check_for_more:
- /*
- * If there's room for more blocks to be tested this
- * around, and we're not done yet testing the disk, go
- * back and get some more blocks.
- */
- if ((buf_used != blocks_at_once) &&
- (currently_testing < last_block))
- continue;
- flush_bufs();
- save_currently_testing = currently_testing;
- /*
- * for each contiguous block that we read into the
- * buffer (and wrote test data into afterwards), read
- * it back (looping if necessary, to get past newly
- * discovered unreadable blocks, of which there should
- * be none, but with a hard drive which is unreliable,
- * it has happened), and compare with the test data
- * that was written; output to the bad block list if
- * it doesn't match.
- */
- used2 = 0;
- save_ptr = save_base;
- test_ptr = test_base;
- read_ptr = read_base;
- try = 0;
- while (1) {
- if (try == 0) {
- if (used2 >= num_saved)
- break;
- currently_testing = test_record[used2].block;
- try = test_record[used2].num;
- used2++;
- }
-
- got = do_read (dev, read_ptr, try,
- block_size, currently_testing);
- /* test the comparison between all the
- blocks successfully read */
- for (i = 0; i < got; ++i)
- if (memcmp (test_ptr+i*block_size,
- read_ptr+i*block_size, block_size))
- bb_count += bb_output(currently_testing + i);
- if (got < try) {
- bb_count += bb_output(currently_testing + got);
- got++;
- }
-
- /* write back original data */
- do_write (dev, save_ptr, got,
- block_size, currently_testing);
- save_ptr += got * block_size;
- currently_testing += got;
- test_ptr += got * block_size;
- read_ptr += got * block_size;
- try -= got;
- }
- /* empty the buffer so it can be reused */
- num_saved = 0;
- buf_used = 0;
- save_ptr = save_base;
- test_ptr = test_base;
- currently_testing = save_currently_testing;
- }
- num_blocks = 0;
- alarm(0);
- if (s_flag || v_flag > 1)
- fputs(done_string, stderr);
- flush_bufs();
- }
- uncapture_terminate();
- fflush(stderr);
- free(blkbuf);
- free(test_record);
- ext2fs_badblocks_list_iterate_end(bb_iter);
- return bb_count;
- }
- static void check_mount(char *device_name)
- {
- errcode_t retval;
- int mount_flags;
- retval = ext2fs_check_if_mounted(device_name, &mount_flags);
- if (retval) {
- com_err("ext2fs_check_if_mount", retval,
- _("while determining whether %s is mounted."),
- device_name);
- return;
- }
- if (!(mount_flags & EXT2_MF_MOUNTED))
- return;
- fprintf(stderr, _("%s is mounted; "), device_name);
- if (force) {
- fputs(_("badblocks forced anyway. "
- "Hope /etc/mtab is incorrect.n"), stderr);
- return;
- }
- fputs(_("it's not safe to run badblocks!n"), stderr);
- exit(1);
- }
- int main (int argc, char ** argv)
- {
- int c;
- char * tmp;
- char * device_name;
- char * host_device_name = NULL;
- char * input_file = NULL;
- char * output_file = NULL;
- FILE * in = NULL;
- int block_size = 1024;
- unsigned long blocks_at_once = 64;
- blk_t last_block, from_count;
- int num_passes = 0;
- int passes_clean = 0;
- int dev;
- errcode_t errcode;
- unsigned long pattern;
- unsigned int (*test_func)(int, unsigned long,
- int, unsigned long,
- unsigned long);
- int open_flag = 0;
- long sysval;
- setbuf(stdout, NULL);
- setbuf(stderr, NULL);
- #ifdef ENABLE_NLS
- setlocale(LC_MESSAGES, "");
- setlocale(LC_CTYPE, "");
- bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
- textdomain(NLS_CAT_NAME);
- #endif
- srandom((unsigned int)time(NULL)); /* simple randomness is enough */
- test_func = test_ro;
- /* Determine the system page size if possible */
- #ifdef HAVE_SYSCONF
- #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
- #define _SC_PAGESIZE _SC_PAGE_SIZE
- #endif
- #ifdef _SC_PAGESIZE
- sysval = sysconf(_SC_PAGESIZE);
- if (sysval > 0)
- sys_page_size = sysval;
- #endif /* _SC_PAGESIZE */
- #endif /* HAVE_SYSCONF */
-
- if (argc && *argv)
- program_name = *argv;
- while ((c = getopt (argc, argv, "b:fi:o:svwnc:p:h:t:")) != EOF) {
- switch (c) {
- case 'b':
- block_size = strtoul (optarg, &tmp, 0);
- if (*tmp || block_size > 4096) {
- com_err (program_name, 0,
- _("bad block size - %s"), optarg);
- exit (1);
- }
- break;
- case 'f':
- force++;
- break;
- case 'i':
- input_file = optarg;
- break;
- case 'o':
- output_file = optarg;
- break;
- case 's':
- s_flag = 1;
- break;
- case 'v':
- v_flag++;
- break;
- case 'w':
- if (w_flag)
- usage();
- test_func = test_rw;
- w_flag = 1;
- break;
- case 'n':
- if (w_flag)
- usage();
- test_func = test_nd;
- w_flag = 2;
- break;
- case 'c':
- blocks_at_once = strtoul (optarg, &tmp, 0);
- if (*tmp) {
- com_err (program_name, 0,
- "bad simultaneous block count - %s", optarg);
- exit (1);
- }
- break;
- case 'p':
- num_passes = strtoul (optarg, &tmp, 0);
- if (*tmp) {
- com_err (program_name, 0,
- "bad number of clean passes - %s", optarg);
- exit (1);
- }
- break;
- case 'h':
- host_device_name = optarg;
- break;
- case 't':
- if (t_flag + 1 > t_max) {
- unsigned long *t_patts_new;
- t_patts_new = realloc(t_patts, t_max + T_INC);
- if (!t_patts_new) {
- com_err(program_name, ENOMEM,
- _("can't allocate memory for "
- "test_pattern - %s"),
- optarg);
- exit(1);
- }
- t_patts = t_patts_new;
- t_max += T_INC;
- }
- if (!strcmp(optarg, "r") || !strcmp(optarg,"random")) {
- t_patts[t_flag++] = ~0;
- } else {
- pattern = strtoul(optarg, &tmp, 0);
- if (*tmp) {
- com_err(program_name, 0,
- _("invalid test_pattern: %sn"),
- optarg);
- exit(1);
- }
- if (pattern == (unsigned long) ~0)
- pattern = 0xffff;
- t_patts[t_flag++] = pattern;
- }
- break;
- default:
- usage();
- }
- }
- if (!w_flag) {
- if (t_flag > 1) {
- com_err(program_name, 0,
- _("Maximum of one test_pattern may be specified "
- "in read-only mode"));
- exit(1);
- }
- if (t_patts && (t_patts[0] == (unsigned long) ~0)) {
- com_err(program_name, 0,
- _("Random test_pattern is not allowed "
- "in read-only mode"));
- exit(1);
- }
- }
- if (optind > argc - 1)
- usage();
- device_name = argv[optind++];
- if (optind > argc - 1) {
- errcode = ext2fs_get_device_size(device_name,
- block_size,
- &last_block);
- if (errcode == EXT2_ET_UNIMPLEMENTED) {
- com_err(program_name, 0,
- _("Couldn't determine device size; you "
- "must specifynthe size manuallyn"));
- exit(1);
- }
- if (errcode) {
- com_err(program_name, errcode,
- _("while trying to determine device size"));
- exit(1);
- }
- } else {
- last_block = strtoul (argv[optind], &tmp, 0);
- if (*tmp) {
- com_err (program_name, 0, _("bad blocks count - %s"),
- argv[optind]);
- exit (1);
- }
- optind++;
- }
- if (optind <= argc-1) {
- from_count = strtoul (argv[optind], &tmp, 0);
- if (*tmp) {
- com_err (program_name, 0, _("bad starting block - %s"),
- argv[optind]);
- exit (1);
- }
- } else from_count = 0;
- if (from_count >= last_block) {
- com_err (program_name, 0, _("bad blocks range: %lu-%lu"),
- (unsigned long) from_count, (unsigned long) last_block);
- exit (1);
- }
- if (w_flag)
- check_mount(device_name);
-
- open_flag = w_flag ? O_RDWR : O_RDONLY;
- dev = open (device_name, open_flag);
- if (dev == -1) {
- com_err (program_name, errno, _("while trying to open %s"),
- device_name);
- exit (1);
- }
- if (host_device_name) {
- host_dev = open (host_device_name, open_flag);
- if (host_dev == -1) {
- com_err (program_name, errno,
- _("while trying to open %s"),
- host_device_name);
- exit (1);
- }
- } else
- host_dev = dev;
- if (input_file) {
- if (strcmp (input_file, "-") == 0)
- in = stdin;
- else {
- in = fopen (input_file, "r");
- if (in == NULL)
- {
- com_err (program_name, errno,
- _("while trying to open %s"),
- input_file);
- exit (1);
- }
- }
- }
- if (output_file && strcmp (output_file, "-") != 0)
- {
- out = fopen (output_file, "w");
- if (out == NULL)
- {
- com_err (program_name, errno,
- _("while trying to open %s"),
- output_file);
- exit (1);
- }
- }
- else
- out = stdout;
- errcode = ext2fs_badblocks_list_create(&bb_list,0);
- if (errcode) {
- com_err (program_name, errcode,
- _("creating in-memory bad blocks list"));
- exit (1);
- }
- if (in) {
- for(;;) {
- switch(fscanf (in, "%un", &next_bad)) {
- case 0:
- com_err (program_name, 0, "input file - bad format");
- exit (1);
- case EOF:
- break;
- default:
- errcode = ext2fs_badblocks_list_add(bb_list,next_bad);
- if (errcode) {
- com_err (program_name, errcode, _("adding to in-memory bad block list"));
- exit (1);
- }
- continue;
- }
- break;
- }
- if (in != stdin)
- fclose (in);
- }
- do {
- unsigned int bb_count;
- bb_count = test_func(dev, last_block, block_size,
- from_count, blocks_at_once);
- if (bb_count)
- passes_clean = 0;
- else
- ++passes_clean;
-
- if (v_flag)
- fprintf(stderr,
- _("Pass completed, %u bad blocks found.n"),
- bb_count);
- } while (passes_clean < num_passes);
- close (dev);
- if (out != stdout)
- fclose (out);
- if (t_patts)
- free(t_patts);
- return 0;
- }