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Diffstat (limited to '')
| -rw-r--r-- | ext2ed/super_com.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/ext2ed/super_com.c b/ext2ed/super_com.c new file mode 100644 index 0000000..a998970 --- /dev/null +++ b/ext2ed/super_com.c @@ -0,0 +1,156 @@ +/* + +/usr/src/ext2ed/super_com.c + +A part of the extended file system 2 disk editor. + +---------------------- +Handles the superblock +---------------------- + +First written on: April 9 1995 + +Copyright (C) 1995 Gadi Oxman + +*/ + +#include "config.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include "ext2ed.h" + +void type_ext2_super_block___show (char *command_line) + +{ + struct ext2_super_block *super; + super=&type_data.u.t_ext2_super_block; + + show (command_line); + + if (ext2fs_blocks_count(super) != 0) { + wmove (show_pad,2,40);wprintw (show_pad,"%2.2f%%",100*(float) ext2fs_r_blocks_count(super)/ (float) ext2fs_blocks_count(super)); + wmove (show_pad,3,40);wprintw (show_pad,"%2.2f%%",100*(float) ext2fs_free_blocks_count(super)/ (float) ext2fs_blocks_count(super)); + } + + if (super->s_inodes_count != 0) { + wmove (show_pad,4,40);wprintw (show_pad,"%2.2f%%",100*(float) super->s_free_inodes_count/ (float) super->s_inodes_count); + } + + wmove (show_pad,6,40); + switch (super->s_log_block_size) { + case 0: wprintw (show_pad,"1024 bytes");break; + case 1: wprintw (show_pad,"2048 bytes");break; + case 2: wprintw (show_pad,"4096 bytes");break; + } + wmove (show_pad,11,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_mtime)); + wmove (show_pad,12,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_wtime)); + wmove (show_pad,19,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_super_block.s_lastcheck)); + wmove (show_pad,15,40); + + switch (type_data.u.t_ext2_super_block.s_magic) { + case EXT2_SUPER_MAGIC: + wprintw (show_pad,"ext2 >= 0.2B"); + break; + case EXT2_PRE_02B_MAGIC: + wprintw (show_pad,"ext2 < 0.2B (not supported)"); + break; + default: + wprintw (show_pad,"Unknown"); + break; + } + + wmove (show_pad,16,40); + if (type_data.u.t_ext2_super_block.s_state & 0x1) + wprintw (show_pad,"clean "); + else + wprintw (show_pad,"not clean "); + + if (type_data.u.t_ext2_super_block.s_state & 0x2) + wprintw (show_pad,"with errors "); + else + wprintw (show_pad,"with no errors"); + + wmove (show_pad,17,40); + + switch (type_data.u.t_ext2_super_block.s_errors) { + case EXT2_ERRORS_CONTINUE: + wprintw (show_pad,"Continue"); + break; + case EXT2_ERRORS_RO: + wprintw (show_pad,"Remount read only"); + break; + case EXT2_ERRORS_PANIC: + wprintw (show_pad,"Issue kernel panic"); + break; + default: + wprintw (show_pad,"Unknown"); + break; + } + + wmove (show_pad,21,40); + + switch (type_data.u.t_ext2_super_block.s_creator_os) { + + case EXT2_OS_LINUX: + wprintw (show_pad,"Linux :-)"); + break; + + case EXT2_OS_HURD: + wprintw (show_pad,"Hurd"); + break; + + default: + wprintw (show_pad,"Unknown"); + break; + } + + refresh_show_pad (); + + wmove (show_win,1,0);wprintw (show_win,"\n");wmove (show_win,2,0); + wprintw (show_win,"Superblock copy %ld ",super_info.copy_num); + if (super_info.copy_num==0) + wprintw (show_win,"(main copy)"); + wprintw (show_win,"\n"); + refresh_show_win (); +} + +void type_ext2_super_block___gocopy (char *command_line) + +{ + unsigned long copy_num,offset; + char *ptr,buffer [80]; + + ptr=parse_word (command_line,buffer); + if (*ptr==0) { + wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return; + } + ptr=parse_word (ptr,buffer); + + copy_num=atol (buffer); + + offset=file_system_info.super_block_offset+copy_num*file_system_info.no_blocks_in_group*file_system_info.block_size; + + if (offset > file_system_info.file_system_size) { + wprintw (command_win,"Error - Copy number out of bounds\n");refresh_command_win ();return; + } + + super_info.copy_num=copy_num; + device_offset=offset; + + sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer); + strcpy (buffer,"show");dispatch (buffer); +} + +void type_ext2_super_block___setactivecopy (char *command_line) + +{ + struct ext2_super_block sb; + + sb=type_data.u.t_ext2_super_block; + dispatch ("gocopy 0"); + type_data.u.t_ext2_super_block=sb; + dispatch ("show"); +} |