3 /usr/src/ext2ed/group_com.c
5 A part of the extended file system 2 disk editor.
9 First written on: April 17 1995
11 Copyright (C) 1995 Gadi Oxman
22 void type_ext2_group_desc___next (char *command_line)
26 char *ptr,buffer [80];
28 ptr=parse_word (command_line,buffer);
30 ptr=parse_word (ptr,buffer);
31 entry_offset=atol (buffer);
34 sprintf (buffer,"entry %ld",group_info.group_num+entry_offset);
38 void type_ext2_group_desc___prev (char *command_line)
42 char *ptr,buffer [80];
44 ptr=parse_word (command_line,buffer);
46 ptr=parse_word (ptr,buffer);
47 entry_offset=atol (buffer);
50 sprintf (buffer,"entry %ld",group_info.group_num-entry_offset);
54 void type_ext2_group_desc___entry (char *command_line)
58 char *ptr,buffer [80];
60 ptr=parse_word (command_line,buffer);
62 wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return;
64 ptr=parse_word (ptr,buffer);
66 group_num=atol (buffer);
68 if (group_num < 0 || group_num >= file_system_info.groups_count) {
69 wprintw (command_win,"Error - Entry number out of bounds\n");refresh_command_win ();return;
72 device_offset=file_system_info.first_group_desc_offset+group_num*sizeof (struct ext2_group_desc);
74 sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
75 strcpy (buffer,"show");dispatch (buffer);
76 group_info.group_num=group_num;
80 void type_ext2_group_desc___gocopy (char *command_line)
83 unsigned long copy_num,offset;
84 char *ptr,buffer [80];
86 ptr=parse_word (command_line,buffer);
88 wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return;
90 ptr=parse_word (ptr,buffer);
92 copy_num=atol (buffer);
94 offset=file_system_info.first_group_desc_offset+copy_num*file_system_info.super_block.s_blocks_per_group*file_system_info.block_size;
96 if (offset > file_system_info.file_system_size) {
97 wprintw (command_win,"Error - Copy number out of bounds\n");refresh_command_win ();return;
100 group_info.copy_num=copy_num;
101 device_offset=offset+group_info.group_num*sizeof (struct ext2_group_desc);
103 sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
104 strcpy (buffer,"show");dispatch (buffer);
108 void type_ext2_group_desc___show (char *command_line)
113 temp=(device_offset-file_system_info.first_group_desc_offset) % (file_system_info.super_block.s_blocks_per_group*file_system_info.block_size);
114 group_num=temp/sizeof (struct ext2_group_desc);
118 wmove (show_win,1,0);wprintw (show_win,"\n");wmove (show_win,2,0);
119 wprintw (show_win,"Group %ld of %ld ",group_num,file_system_info.groups_count-1);
120 wprintw (show_win,"in copy %ld ",group_info.copy_num);
121 if (group_info.copy_num==0) wprintw (show_win,"(Main copy)");
122 wprintw (show_win,"\n");refresh_show_win ();
125 wprintw (command_win,"Reached first group descriptor\n");
126 wrefresh (command_win);
129 if (group_num==file_system_info.groups_count-1) {
130 wprintw (command_win,"Reached last group descriptor\n");
131 wrefresh (command_win);
135 void type_ext2_group_desc___inode (char *command_line)
141 inode_offset=type_data.u.t_ext2_group_desc.bg_inode_table;
142 sprintf (buffer,"setoffset block %ld",inode_offset);dispatch (buffer);
143 sprintf (buffer,"settype ext2_inode");dispatch (buffer);
146 void type_ext2_group_desc___blockbitmap (char *command_line)
149 long block_bitmap_offset;
152 block_bitmap_info.entry_num=0;
153 block_bitmap_info.group_num=group_info.group_num;
155 block_bitmap_offset=type_data.u.t_ext2_group_desc.bg_block_bitmap;
156 sprintf (buffer,"setoffset block %ld",block_bitmap_offset);dispatch (buffer);
157 sprintf (buffer,"settype block_bitmap");dispatch (buffer);
160 void type_ext2_group_desc___inodebitmap (char *command_line)
163 long inode_bitmap_offset;
166 inode_bitmap_info.entry_num=0;
167 inode_bitmap_info.group_num=group_info.group_num;
169 inode_bitmap_offset=type_data.u.t_ext2_group_desc.bg_inode_bitmap;
170 sprintf (buffer,"setoffset block %ld",inode_bitmap_offset);dispatch (buffer);
171 sprintf (buffer,"settype inode_bitmap");dispatch (buffer);
174 void type_ext2_group_desc___setactivecopy (char *command_line)
177 struct ext2_group_desc gd;
179 gd=type_data.u.t_ext2_group_desc;
180 dispatch ("gocopy 0");
181 type_data.u.t_ext2_group_desc=gd;