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-rw-r--r--ext2ed/super_com.c156
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");
+}