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 } 157
