119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project/* 219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * findsuper --- quick hacked up program to find ext2 superblocks. 319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * This is a hack, and really shouldn't be installed anywhere. If you 519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * need a program which does this sort of functionality, please try 619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * using gpart program. 719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Portions Copyright 1998-2000, Theodore Ts'o. 93984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 1019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Well, here's my linux version of findsuper. 1119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * I'm sure you coulda done it faster. :) 1219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * IMHO there isn't as much interesting data to print in the 1319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * linux superblock as there is in the SunOS superblock--disk geometry is 1419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * not there...and linux seems to update the dates in all the superblocks. 1519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * SunOS doesn't ever touch the backup superblocks after the fs is created, 1619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * as far as I can tell, so the date is more interesting IMHO and certainly 1719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * marks which superblocks are backup ones. 1819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 1919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * I wanted to add msdos support, but I couldn't make heads or tails 2019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * of the kernel include files to find anything I could look for in msdos. 213984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 2219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Reading every block of a Sun partition is fairly quick. Doing the 2319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * same under linux (slower hardware I suppose) just isn't the same. 2419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * It might be more useful to default to reading the first (second?) block 2519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * on each cyl; however, if the disk geometry is wrong, this is useless. 2619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * But ya could still get the cyl size to print the numbers as cyls instead 2719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * of blocks... 2819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 2919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * run this as (for example) 3019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * findsuper /dev/hda 3119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * findsuper /dev/hda 437760 1024 (my disk has cyls of 855*512) 3219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 3319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * I suppose the next step is to figgure out a way to determine if 3419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * the block found is the first superblock somehow, and if so, build 3519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * a partition table from the superblocks found... but this is still 3619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * useful as is. 3719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 3819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Steve 3919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * ssd@nevets.oau.org 4019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * ssd@mae.engr.ucf.edu 4119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 4219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Additional notes by Andreas Dilger <adilger@turbolinux.com>: 4319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * - fixed to support > 2G devices by using lseek64 4419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * - add reliability checking for the superblock to avoid random garbage 4519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * - add adaptive progress meter 4619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 4719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * It _should_ also handle signals and tell you the ending block, so 4819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * that you can resume at a later time, but it doesn't yet... 4919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 5019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Note that gpart does not appear to find all superblocks that aren't aligned 5119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * with the start of a possible partition, so it is not useful in systems 5219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * with LVM or similar setups which don't use fat partition alignment. 5319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * 5419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * %Begin-Header% 5519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * This file may be redistributed under the terms of the GNU Public 5619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * License. 5719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * %End-Header% 5819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project */ 5919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 6019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project/* 6119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * Documentation addendum added by Andreas dwguest@win.tue.nl/aeb@cwi.nl 623984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 6319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * The program findsuper is a utility that scans a disk and finds 6419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * copies of ext2 superblocks (by checking for the ext2 signature). 653984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 6619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * For each superblock found, it prints the offset in bytes, the 6719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * offset in 1024-byte blocks, the size of the ext2 partition in fs 6819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * blocks, the filesystem blocksize (in bytes), the block group number 6919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * (always 0 for older ext2 systems), and a timestamp (s_mtime). 703984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 7119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * This program can be used to retrieve partitions that have been 7219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * lost. The superblock for block group 0 is found 1 block (2 7319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * sectors) after the partition start. 743984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 7519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * For new systems that have a block group number in the superblock it 7619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * is immediately clear which superblock is the first of a partition. 7719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * For old systems where no group numbers are given, the first 7819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * superblock can be recognised by the timestamp: all superblock 7919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * copies have the creation time in s_mtime, except the first, which 8019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * has the last time e2fsck or tune2fs wrote to the filesystem. 813984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt * 8219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project */ 8319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 8419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#define _FILE_OFFSET_BITS 64 8519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 8619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <stdio.h> 8719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <stdlib.h> 8819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <string.h> 8919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <unistd.h> 9019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <errno.h> 9119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <fcntl.h> 9219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include <time.h> 9319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 9419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include "ext2fs/ext2_fs.h" 9519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#include "nls-enable.h" 9619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 9719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#undef DEBUG 9819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 9919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#ifdef DEBUG 10019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#define WHY(fmt, arg...) { printf("\r%Ld: " fmt, sk, ##arg) ; continue; } 10119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#else 10219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#define WHY(fmt, arg...) { continue; } 10319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#endif 10419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 1053984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidtstatic void usage(void) 10619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project{ 1073984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt fprintf(stderr, 10819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project _("Usage: findsuper device [skipbytes [startkb]]\n")); 10919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(1); 11019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project} 11119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 11219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 11319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Projectint main(int argc, char *argv[]) 11419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project{ 11519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project int skiprate=512; /* one sector */ 11619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project loff_t sk=0, skl=0; 11719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project int fd; 11819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project char *s; 11919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project time_t tm, last = time(0); 12019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project loff_t interval = 1024 * 1024; 12119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project int c, print_jnl_copies = 0; 12219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project const char * device_name; 12319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project struct ext2_super_block ext2; 12419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project /* interesting fields: EXT2_SUPER_MAGIC 12519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project * s_blocks_count s_log_block_size s_mtime s_magic s_lastcheck */ 12619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 12719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#ifdef ENABLE_NLS 12819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project setlocale(LC_MESSAGES, ""); 12919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project setlocale(LC_CTYPE, ""); 13019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 13119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project textdomain(NLS_CAT_NAME); 13219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project#endif 13319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 13419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project while ((c = getopt (argc, argv, "j")) != EOF) { 13519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project switch (c) { 13619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project case 'j': 13719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project print_jnl_copies++; 13819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project break; 13919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project default: 14019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project usage(); 14119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 14219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 14319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 14419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (optind == argc) 14519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project usage(); 14619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 14719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project device_name = argv[optind++]; 14819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 14919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (optind < argc) { 15019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project skiprate = strtol(argv[optind], &s, 0); 15119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (s == argv[optind]) { 15219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fprintf(stderr,_("skipbytes should be a number, not %s\n"), s); 15319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(1); 15419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 15519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project optind++; 15619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 15719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (skiprate & 0x1ff) { 15819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fprintf(stderr, 15919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project _("skipbytes must be a multiple of the sector size\n")); 16019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(2); 16119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 16219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (optind < argc) { 16319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project sk = skl = strtoll(argv[optind], &s, 0) << 10; 16419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (s == argv[optind]) { 16519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fprintf(stderr, 16619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project _("startkb should be a number, not %s\n"), s); 16719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(1); 16819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 16919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project optind++; 17019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 17119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (sk < 0) { 17219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fprintf(stderr, _("startkb should be positive, not %Lu\n"), sk); 17319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(1); 17419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 1753984b61df41c68966bdfbb2a5e5a45ef4b9a536cDmitry Shmidt 17619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fd = open(device_name, O_RDONLY); 17719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (fd < 0) { 17819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project perror(device_name); 17919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project exit(1); 18019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 18119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 18219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project /* Now, go looking for the superblock! */ 18319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf(_("starting at %Lu, with %u byte increments\n"), sk, skiprate); 18419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (print_jnl_copies) 18519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf(_("[*] probably superblock written in the ext3 " 18619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project "journal superblock,\n\tso start/end/grp wrong\n")); 18719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf(_("byte_offset byte_start byte_end fs_blocks blksz grp last_mount_time sb_uuid label\n")); 18819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project for (; lseek64(fd, sk, SEEK_SET) != -1 && 18919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project read(fd, &ext2, 512) == 512; sk += skiprate) { 19019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project static unsigned char last_uuid[16] = "blah"; 19119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project unsigned long long bsize, grpsize; 19219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project int jnl_copy, sb_offset; 19319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 19419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (sk && !(sk & (interval - 1))) { 19519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project time_t now, diff; 19619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 19719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project now = time(0); 19819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project diff = now - last; 19919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 20019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (diff > 0) { 20119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project s = ctime(&now); 20219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project s[24] = 0; 20319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf("\r%11Lu: %8LukB/s @ %s", sk, 20419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project (((sk - skl)) / diff) >> 10, s); 20519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project fflush(stdout); 20619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 20719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (diff < 5) 20819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project interval <<= 1; 20919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project else if (diff > 20) 21019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project interval >>= 1; 21119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project last = now; 21219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project skl = sk; 21319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 21419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_magic != EXT2_SUPER_MAGIC) 21519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project continue; 21619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_log_block_size > 6) 21719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project WHY("log block size > 6 (%u)\n", ext2.s_log_block_size); 21819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_r_blocks_count > ext2.s_blocks_count) 21919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project WHY("r_blocks_count > blocks_count (%u > %u)\n", 22019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_r_blocks_count, ext2.s_blocks_count); 22119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_free_blocks_count > ext2.s_blocks_count) 22219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project WHY("free_blocks_count > blocks_count\n (%u > %u)\n", 22319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_free_blocks_count, ext2.s_blocks_count); 22419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_free_inodes_count > ext2.s_inodes_count) 22519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project WHY("free_inodes_count > inodes_count (%u > %u)\n", 22619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_free_inodes_count, ext2.s_inodes_count); 22719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 22819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project tm = ext2.s_mtime; 22919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project s = ctime(&tm); 23019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project s[24] = 0; 23119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project bsize = 1 << (ext2.s_log_block_size + 10); 23219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project grpsize = bsize * ext2.s_blocks_per_group; 23319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (memcmp(ext2.s_uuid, last_uuid, sizeof(last_uuid)) == 0 && 23419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_rev_level > 0 && ext2.s_block_group_nr == 0) { 23519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project jnl_copy = 1; 23619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } else { 23719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project jnl_copy = 0; 23819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project memcpy(last_uuid, ext2.s_uuid, sizeof(last_uuid)); 23919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 24019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (ext2.s_block_group_nr == 0 || bsize == 1024) 24119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project sb_offset = 1024; 24219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project else 24319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project sb_offset = 0; 24419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project if (jnl_copy && !print_jnl_copies) 24519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project continue; 24619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf("\r%11Lu %11Lu%s %11Lu%s %9u %5Lu %4u%s %s %02x%02x%02x%02x %s\n", 24719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project sk, sk - ext2.s_block_group_nr * grpsize - sb_offset, 24819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project jnl_copy ? "*":" ", 24919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project sk + ext2.s_blocks_count * bsize - 25019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_block_group_nr * grpsize - sb_offset, 25119dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project jnl_copy ? "*" : " ", ext2.s_blocks_count, bsize, 25219dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_block_group_nr, jnl_copy ? "*" : " ", s, 25319dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_uuid[0], ext2.s_uuid[1], 25419dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project ext2.s_uuid[2], ext2.s_uuid[3], ext2.s_volume_name); 25519dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project } 25619dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project printf(_("\n%11Lu: finished with errno %d\n"), sk, errno); 25719dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project close(fd); 25819dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project 25919dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project return errno; 26019dacda2b02bb08c0ffb649f84526b249c749279The Android Open Source Project} 261