ext2ed/super_com.c

   1 /*
   2
   3 /usr/src/ext2ed/super_com.c
   4
   5 A part of the extended file system 2 disk editor.
   6
   7 ----------------------
   8 Handles the superblock
   9 ----------------------
  10
  11 First written on: April 9 1995
  12
  13 Copyright (C) 1995 Gadi Oxman
  14
  15 */
  16
  17 #include "config.h"
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <time.h>
  22
  23 #include "ext2ed.h"
  24
  25 void type_ext2_super_block___show (char *command_line)
  26
  27 {
  28         struct ext2_super_block *super;
  29         super=&type_data.u.t_ext2_super_block;
  30
  31         show (command_line);
  32
  33         if (ext2fs_blocks_count(super) != 0) {
  34                 wmove (show_pad,2,40);wprintw (show_pad,"%2.2f%%",100*(float) ext2fs_r_blocks_count(super)/ (float) ext2fs_blocks_count(super));
  35                 wmove (show_pad,3,40);wprintw (show_pad,"%2.2f%%",100*(float) ext2fs_free_blocks_count(super)/ (float) ext2fs_blocks_count(super));
  36         }
  37
  38         if (super->s_inodes_count != 0) {
  39                 wmove (show_pad,4,40);wprintw (show_pad,"%2.2f%%",100*(float) super->s_free_inodes_count/ (float) super->s_inodes_count);
  40         }
  41
  42         wmove (show_pad,6,40);
  43         switch (super->s_log_block_size) {
  44                 case 0: wprintw (show_pad,"1024 bytes");break;
  45                 case 1: wprintw (show_pad,"2048 bytes");break;
  46                 case 2: wprintw (show_pad,"4096 bytes");break;
  47         }
  48         wmove (show_pad,11,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_mtime));
  49         wmove (show_pad,12,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_wtime));
  50         wmove (show_pad,19,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_lastcheck));
  51         wmove (show_pad,15,40);
  52
  53         switch (type_data.u.t_ext2_super_block.s_magic) {
  54                 case EXT2_SUPER_MAGIC:
  55                         wprintw (show_pad,"ext2 >= 0.2B");
  56                         break;
  57                 case EXT2_PRE_02B_MAGIC:
  58                         wprintw (show_pad,"ext2 < 0.2B (not supported)");
  59                         break;
  60                 default:
  61                         wprintw (show_pad,"Unknown");
  62                         break;
  63         }
  64
  65         wmove (show_pad,16,40);
  66         if (type_data.u.t_ext2_super_block.s_state & 0x1)
  67                 wprintw (show_pad,"clean ");
  68         else
  69                 wprintw (show_pad,"not clean ");
  70
  71         if (type_data.u.t_ext2_super_block.s_state & 0x2)
  72                 wprintw (show_pad,"with errors ");
  73         else
  74                 wprintw (show_pad,"with no errors");
  75
  76         wmove (show_pad,17,40);
  77
  78         switch (type_data.u.t_ext2_super_block.s_errors) {
  79                 case EXT2_ERRORS_CONTINUE:
  80                         wprintw (show_pad,"Continue");
  81                         break;
  82                 case EXT2_ERRORS_RO:
  83                         wprintw (show_pad,"Remount read only");
  84                         break;
  85                 case EXT2_ERRORS_PANIC:
  86                         wprintw (show_pad,"Issue kernel panic");
  87                         break;
  88                 default:
  89                         wprintw (show_pad,"Unknown");
  90                         break;
  91         }
  92
  93         wmove (show_pad,21,40);
  94
  95         switch (type_data.u.t_ext2_super_block.s_creator_os) {
  96
  97                 case EXT2_OS_LINUX:
  98                         wprintw (show_pad,"Linux :-)");
  99                         break;
 100
 101                 case EXT2_OS_HURD:
 102                         wprintw (show_pad,"Hurd");
 103                         break;
 104
 105                 default:
 106                         wprintw (show_pad,"Unknown");
 107                         break;
 108         }
 109
 110         refresh_show_pad ();
 111
 112         wmove (show_win,1,0);wprintw (show_win,"\n");wmove (show_win,2,0);
 113         wprintw (show_win,"Superblock copy %ld ",super_info.copy_num);
 114         if (super_info.copy_num==0)
 115                 wprintw (show_win,"(main copy)");
 116         wprintw (show_win,"\n");
 117         refresh_show_win ();
 118 }
 119
 120 void type_ext2_super_block___gocopy (char *command_line)
 121
 122 {
 123         unsigned long copy_num,offset;
 124         char *ptr,buffer [80];
 125
 126         ptr=parse_word (command_line,buffer);
 127         if (*ptr==0) {
 128                 wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return;
 129         }
 130         ptr=parse_word (ptr,buffer);
 131
 132         copy_num=atol (buffer);
 133
 134         offset=file_system_info.super_block_offset+copy_num*file_system_info.no_blocks_in_group*file_system_info.block_size;
 135
 136         if (offset > file_system_info.file_system_size) {
 137                 wprintw (command_win,"Error - Copy number out of bounds\n");refresh_command_win ();return;
 138         }
 139
 140         super_info.copy_num=copy_num;
 141         device_offset=offset;
 142
 143         sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
 144         strcpy (buffer,"show");dispatch (buffer);
 145 }
 146
 147 void type_ext2_super_block___setactivecopy (char *command_line)
 148
 149 {
 150         struct ext2_super_block sb;
 151
 152         sb=type_data.u.t_ext2_super_block;
 153         dispatch ("gocopy 0");
 154         type_data.u.t_ext2_super_block=sb;
 155         dispatch ("show");
 156 }