1 files changed, 183 insertions, 0 deletions
diff --git a/ext2ed/group_com.c b/ext2ed/group_com.c
new file mode 100644
index 0000000..aaed16e
--- /dev/null
+++ b/ext2ed/group_com.c
@@ -0,0 +1,183 @@
+/*
+
+/usr/src/ext2ed/group_com.c
+
+A part of the extended file system 2 disk editor.
+
+General user commands
+
+First written on: April 17 1995
+
+Copyright (C) 1995 Gadi Oxman
+
+*/
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ext2ed.h"
+
+void type_ext2_group_desc___next (char *command_line)
+
+{
+	long entry_offset=1;
+	char *ptr,buffer [80];
+
+	ptr=parse_word (command_line,buffer);
+	if (*ptr!=0) {
+		ptr=parse_word (ptr,buffer);
+		entry_offset=atol (buffer);
+	}
+
+	sprintf (buffer,"entry %ld",group_info.group_num+entry_offset);
+	dispatch (buffer);
+}
+
+void type_ext2_group_desc___prev (char *command_line)
+
+{
+	long entry_offset=1;
+	char *ptr,buffer [80];
+
+	ptr=parse_word (command_line,buffer);
+	if (*ptr!=0) {
+		ptr=parse_word (ptr,buffer);
+		entry_offset=atol (buffer);
+	}
+
+	sprintf (buffer,"entry %ld",group_info.group_num-entry_offset);
+	dispatch (buffer);
+}
+
+void type_ext2_group_desc___entry (char *command_line)
+
+{
+	long group_num;
+	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);
+
+	group_num=atol (buffer);
+
+	if (group_num < 0 || group_num >= file_system_info.groups_count) {
+		wprintw (command_win,"Error - Entry number out of bounds\n");refresh_command_win ();return;
+	}
+
+	device_offset=file_system_info.first_group_desc_offset+group_num*sizeof (struct ext2_group_desc);
+
+	sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
+	strcpy (buffer,"show");dispatch (buffer);
+	group_info.group_num=group_num;
+}
+
+
+void type_ext2_group_desc___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.first_group_desc_offset+copy_num*file_system_info.super_block.s_blocks_per_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;
+	}
+
+	group_info.copy_num=copy_num;
+	device_offset=offset+group_info.group_num*sizeof (struct ext2_group_desc);
+
+	sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
+	strcpy (buffer,"show");dispatch (buffer);
+}
+
+
+void type_ext2_group_desc___show (char *command_line)
+
+{
+	long group_num,temp;
+
+	temp=(device_offset-file_system_info.first_group_desc_offset) % (file_system_info.super_block.s_blocks_per_group*file_system_info.block_size);
+	group_num=temp/sizeof (struct ext2_group_desc);
+
+	show (command_line);
+
+	wmove (show_win,1,0);wprintw (show_win,"\n");wmove (show_win,2,0);
+	wprintw (show_win,"Group %ld of %ld ",group_num,file_system_info.groups_count-1);
+	wprintw (show_win,"in copy %ld ",group_info.copy_num);
+	if (group_info.copy_num==0) wprintw (show_win,"(Main copy)");
+	wprintw (show_win,"\n");refresh_show_win ();
+
+	if (group_num==0) {
+		wprintw (command_win,"Reached first group descriptor\n");
+		wrefresh (command_win);
+	}
+
+	if (group_num==file_system_info.groups_count-1) {
+		wprintw (command_win,"Reached last group descriptor\n");
+		wrefresh (command_win);
+	}
+}
+
+void type_ext2_group_desc___inode (char *command_line)
+
+{
+	long inode_offset;
+	char buffer [80];
+
+	inode_offset=type_data.u.t_ext2_group_desc.bg_inode_table;
+	sprintf (buffer,"setoffset block %ld",inode_offset);dispatch (buffer);
+	sprintf (buffer,"settype ext2_inode");dispatch (buffer);
+}
+
+void type_ext2_group_desc___blockbitmap (char *command_line)
+
+{
+	long block_bitmap_offset;
+	char buffer [80];
+
+	block_bitmap_info.entry_num=0;
+	block_bitmap_info.group_num=group_info.group_num;
+
+	block_bitmap_offset=type_data.u.t_ext2_group_desc.bg_block_bitmap;
+	sprintf (buffer,"setoffset block %ld",block_bitmap_offset);dispatch (buffer);
+	sprintf (buffer,"settype block_bitmap");dispatch (buffer);
+}
+
+void type_ext2_group_desc___inodebitmap (char *command_line)
+
+{
+	long inode_bitmap_offset;
+	char buffer [80];
+
+	inode_bitmap_info.entry_num=0;
+	inode_bitmap_info.group_num=group_info.group_num;
+
+	inode_bitmap_offset=type_data.u.t_ext2_group_desc.bg_inode_bitmap;
+	sprintf (buffer,"setoffset block %ld",inode_bitmap_offset);dispatch (buffer);
+	sprintf (buffer,"settype inode_bitmap");dispatch (buffer);
+}
+
+void type_ext2_group_desc___setactivecopy (char *command_line)
+
+{
+	struct ext2_group_desc gd;
+
+	gd=type_data.u.t_ext2_group_desc;
+	dispatch ("gocopy 0");
+	type_data.u.t_ext2_group_desc=gd;
+	dispatch ("show");
+}