Merge change 9990
[android/platform/external/e2fsprogs.git] / ext2ed / group_com.c
1 /*
2
3 /usr/src/ext2ed/group_com.c
4
5 A part of the extended file system 2 disk editor.
6
7 General user commands
8
9 First written on: April 17 1995
10
11 Copyright (C) 1995 Gadi Oxman
12
13 */
14
15 #include <stdio.h>
16 #include <stdlib.h>
17 #include <string.h>
18
19 #include "ext2ed.h"
20
21 void type_ext2_group_desc___next (char *command_line)
22  
23 {
24         long entry_offset=1;
25         char *ptr,buffer [80];
26         
27         ptr=parse_word (command_line,buffer);
28         if (*ptr!=0) {
29                 ptr=parse_word (ptr,buffer);
30                 entry_offset=atol (buffer);
31         }
32
33         sprintf (buffer,"entry %ld",group_info.group_num+entry_offset);
34         dispatch (buffer);
35 }
36
37 void type_ext2_group_desc___prev (char *command_line)
38
39 {
40         long entry_offset=1;
41         char *ptr,buffer [80];
42         
43         ptr=parse_word (command_line,buffer);
44         if (*ptr!=0) {
45                 ptr=parse_word (ptr,buffer);
46                 entry_offset=atol (buffer);
47         }
48
49         sprintf (buffer,"entry %ld",group_info.group_num-entry_offset);
50         dispatch (buffer);
51 }
52
53 void type_ext2_group_desc___entry (char *command_line)
54
55 {
56         long group_num;
57         char *ptr,buffer [80];
58         
59         ptr=parse_word (command_line,buffer);
60         if (*ptr==0) {
61                 wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return;
62         }
63         ptr=parse_word (ptr,buffer);
64
65         group_num=atol (buffer);
66         
67         if (group_num < 0 || group_num >= file_system_info.groups_count) {
68                 wprintw (command_win,"Error - Entry number out of bounds\n");refresh_command_win ();return;
69         }
70         
71         device_offset=file_system_info.first_group_desc_offset+group_num*sizeof (struct ext2_group_desc);
72
73         sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
74         strcpy (buffer,"show");dispatch (buffer);
75         group_info.group_num=group_num;
76 }
77
78
79 void type_ext2_group_desc___gocopy (char *command_line)
80
81 {
82         unsigned long copy_num,offset;
83         char *ptr,buffer [80];
84         
85         ptr=parse_word (command_line,buffer);
86         if (*ptr==0) {
87                 wprintw (command_win,"Error - No argument specified\n");refresh_command_win ();return;
88         }
89         ptr=parse_word (ptr,buffer);
90
91         copy_num=atol (buffer);
92         
93         offset=file_system_info.first_group_desc_offset+copy_num*file_system_info.super_block.s_blocks_per_group*file_system_info.block_size;
94         
95         if (offset > file_system_info.file_system_size) {
96                 wprintw (command_win,"Error - Copy number out of bounds\n");refresh_command_win ();return;
97         }       
98
99         group_info.copy_num=copy_num;
100         device_offset=offset+group_info.group_num*sizeof (struct ext2_group_desc);
101
102         sprintf (buffer,"setoffset %ld",device_offset);dispatch (buffer);
103         strcpy (buffer,"show");dispatch (buffer);
104 }
105
106
107 void type_ext2_group_desc___show (char *command_line)
108
109 {
110         long group_num,temp;
111         
112         temp=(device_offset-file_system_info.first_group_desc_offset) % (file_system_info.super_block.s_blocks_per_group*file_system_info.block_size);
113         group_num=temp/sizeof (struct ext2_group_desc);
114
115         show (command_line);
116         
117         wmove (show_win,1,0);wprintw (show_win,"\n");wmove (show_win,2,0);
118         wprintw (show_win,"Group %ld of %ld ",group_num,file_system_info.groups_count-1);
119         wprintw (show_win,"in copy %ld ",group_info.copy_num);
120         if (group_info.copy_num==0) wprintw (show_win,"(Main copy)");
121         wprintw (show_win,"\n");refresh_show_win ();
122
123         if (group_num==0) {
124                 wprintw (command_win,"Reached first group descriptor\n");
125                 wrefresh (command_win);
126         }
127
128         if (group_num==file_system_info.groups_count-1) {
129                 wprintw (command_win,"Reached last group descriptor\n");
130                 wrefresh (command_win);
131         }
132 }
133
134 void type_ext2_group_desc___inode (char *command_line)
135
136 {
137         long inode_offset;
138         char buffer [80];
139         
140         inode_offset=type_data.u.t_ext2_group_desc.bg_inode_table;
141         sprintf (buffer,"setoffset block %ld",inode_offset);dispatch (buffer);
142         sprintf (buffer,"settype ext2_inode");dispatch (buffer);
143 }
144
145 void type_ext2_group_desc___blockbitmap (char *command_line)
146
147 {
148         long block_bitmap_offset;
149         char buffer [80];
150         
151         block_bitmap_info.entry_num=0;
152         block_bitmap_info.group_num=group_info.group_num;
153         
154         block_bitmap_offset=type_data.u.t_ext2_group_desc.bg_block_bitmap;
155         sprintf (buffer,"setoffset block %ld",block_bitmap_offset);dispatch (buffer);
156         sprintf (buffer,"settype block_bitmap");dispatch (buffer);
157 }
158
159 void type_ext2_group_desc___inodebitmap (char *command_line)
160
161 {
162         long inode_bitmap_offset;
163         char buffer [80];
164         
165         inode_bitmap_info.entry_num=0;
166         inode_bitmap_info.group_num=group_info.group_num;
167         
168         inode_bitmap_offset=type_data.u.t_ext2_group_desc.bg_inode_bitmap;
169         sprintf (buffer,"setoffset block %ld",inode_bitmap_offset);dispatch (buffer);
170         sprintf (buffer,"settype inode_bitmap");dispatch (buffer);
171 }
172
173 void type_ext2_group_desc___setactivecopy (char *command_line)
174
175 {
176         struct ext2_group_desc gd;
177         
178         gd=type_data.u.t_ext2_group_desc;
179         dispatch ("gocopy 0");
180         type_data.u.t_ext2_group_desc=gd;
181         dispatch ("show");
182 }