void detailed_help (char *text)
{
int i;
if (current_type != NULL)
for (i=0;i<=current_type->type_commands.last_command;i++) {
if (strcmp (current_type->type_commands.names [i],text)==0) {
wprintw (show_pad,"%s - %s\n",text,current_type->type_commands.descriptions [i]);
refresh_show_pad ();return;
}
}
for (i=0;i<=ext2_commands.last_command;i++) {
if (strcmp (ext2_commands.names [i],text)==0) {
wprintw (show_pad,"%s - %s\n",text,ext2_commands.descriptions [i]);
refresh_show_pad ();return;
}
}
for (i=0;i<=general_commands.last_command;i++) {
if (strcmp (general_commands.names [i],text)==0) {
wprintw (show_pad,"%s - %s\n",text,general_commands.descriptions [i]);
refresh_show_pad ();return;
}
}
if (strcmp ("quit",text)==0) {
wprintw (show_pad,"quit - Exists EXT2ED");
refresh_show_pad ();return;
}
wprintw (show_pad,"Error - Command %s not aviable now\n",text);
refresh_show_pad ();return;
}
void type_dir___show (char *command_line)
{
int status;
wmove (show_pad,0,0);
show_pad_info.max_line=-1;
search_dir_entries (&action_show,&status);
show_pad_info.line=file_info.dir_entry_num-show_pad_info.display_lines/2;
refresh_show_pad ();
show_dir_status ();
}
void redraw_all (void)
{
int min_lines = TITLE_WIN_LINES+SHOW_WIN_LINES+COMMAND_WIN_LINES+3;
struct winsize ws;
int save_col, save_lines;
/* get the size of the terminal connected to stdout */
ioctl(1, TIOCGWINSZ, &ws);
/*
* Do it again because GDB doesn't stop before the first ioctl
* call, we want an up-to-date size when we're
* single-stepping.
*/
if (ioctl(1, TIOCGWINSZ, &ws) == 0) {
if (ws.ws_row < min_lines)
ws.ws_row = min_lines;
if ((ws.ws_row != LINES) || (ws.ws_col != COLS)) {
wmove (show_win,2,COLS-18);
wclrtoeol(show_win);
wrefresh(show_win);
resizeterm(ws.ws_row, ws.ws_col);
wresize(title_win, TITLE_WIN_LINES,COLS);
wresize(show_win, SHOW_WIN_LINES,COLS);
wresize(command_win, COMMAND_WIN_LINES,COLS);
wresize(mt_win1, 1,COLS);
wresize(mt_win2, 1,COLS);
mvwin(mt_win2, LINES-COMMAND_WIN_LINES-1,0);
mvwin(command_win, LINES-COMMAND_WIN_LINES,0);
draw_title_win();
show_pad_info.display_lines=LINES-TITLE_WIN_LINES-SHOW_WIN_LINES-COMMAND_WIN_LINES-2;
show_pad_info.display_cols=COLS;
}
}
clearok(title_win, 1);
clearok(show_win, 1);
clearok(command_win, 1);
clearok(mt_win1, 1);
clearok(mt_win2, 1);
wrefresh(mt_win1);
wrefresh(mt_win2);
refresh_show_pad();
refresh_show_win();
refresh_title_win ();
refresh_command_win ();
}
void type_dir___show (char *command_line)
/*
We use search_dir_entries to run on all the entries. Each time, action_show will be called to show one entry.
*/
{
int status;
wmove (show_pad,0,0);
show_pad_info.max_line=-1;
search_dir_entries (&action_show,&status);
show_pad_info.line=file_info.dir_entry_num-show_pad_info.display_lines/2;
refresh_show_pad ();
show_dir_status ();
}
void init_windows (void)
{
initscr ();
tcgetattr(0,&termioInit); /* save initial config */
termioCurrent = termioInit;
termioCurrent.c_lflag |= ECHO; /* set echo on */
tcsetattr(0,TCSANOW,&termioCurrent);
if (LINES<TITLE_WIN_LINES+SHOW_WIN_LINES+COMMAND_WIN_LINES+3) {
printf ("Sorry, your terminal screen is too small\n");
printf ("Error - Can not initialize windows\n");
exit (1);
}
title_win=newwin (TITLE_WIN_LINES,COLS,0,0);
show_win=newwin (SHOW_WIN_LINES,COLS,TITLE_WIN_LINES,0);
show_pad=newpad (SHOW_PAD_LINES,SHOW_PAD_COLS);
mt_win1=newwin (1,COLS,TITLE_WIN_LINES+SHOW_WIN_LINES,0);
mt_win2=newwin (1,COLS,LINES-COMMAND_WIN_LINES-1,0);
command_win=newwin (COMMAND_WIN_LINES,COLS,LINES-COMMAND_WIN_LINES,0);
if (title_win==NULL || show_win==NULL || show_pad==NULL || command_win==NULL) {
printf ("Error - Not enough memory - Can not initialize windows\n");exit (1);
}
draw_title_win();
setup_show_win();
scrollok (command_win,TRUE);
refresh_title_win ();
refresh_show_win ();
refresh_show_pad();
refresh_command_win ();
wrefresh(mt_win1);
wrefresh(mt_win2);
}
void file_show_text (void)
{
long offset=0,last_offset,l=0,cols=0;
unsigned char *ch_ptr;
/* device_offset and type_data points to the inode */
show_pad_info.line=0;
wmove (show_pad,0,0);
ch_ptr=file_info.buffer;
last_offset=file_system_info.block_size-1;
if (file_info.file_offset+last_offset > file_info.file_length-1)
last_offset=file_info.file_length-1-file_info.file_offset;
while ( (offset <= last_offset) && l<SHOW_PAD_LINES) {
if (cols==SHOW_PAD_COLS-1) {
wprintw (show_pad,"\n");
l++;cols=0;
}
if (file_info.offset_in_block==offset)
wattrset (show_pad,A_REVERSE);
if (*ch_ptr >= ' ' && *ch_ptr <= 'z')
wprintw (show_pad,"%c",*ch_ptr);
else {
if (*ch_ptr == 0xa) {
wprintw (show_pad,"\n");
l++;cols=0;
}
else if (*ch_ptr == 0x9)
wprintw (show_pad," ");
else
wprintw (show_pad,".");
}
if (file_info.offset_in_block==offset) {
wattrset (show_pad,A_NORMAL);
show_pad_info.line=l-l % show_pad_info.display_lines;
}
offset++;cols++;ch_ptr++;
}
wprintw (show_pad,"\n");
show_pad_info.max_line=l;
refresh_show_pad ();
show_status ();
}
void file_show_hex (void)
{
long offset=0,l,i;
unsigned char *ch_ptr;
/* device_offset and type_data points to the inode */
show_pad_info.line=0;
wmove (show_pad,0,0);
ch_ptr=file_info.buffer;
for (l=0;l<file_system_info.block_size/16;l++) {
if (file_info.file_offset+offset>file_info.file_length-1) break;
wprintw (show_pad,"%08ld : ",offset);
for (i=0;i<16;i++) {
if (file_info.file_offset+offset+i>file_info.file_length-1) {
wprintw (show_pad," ");
}
else {
if (file_info.offset_in_block==offset+i)
wattrset (show_pad,A_REVERSE);
if (ch_ptr [i]>=' ' && ch_ptr [i]<='z')
wprintw (show_pad,"%c",ch_ptr [i]);
else
wprintw (show_pad,".");
if (file_info.offset_in_block==offset+i)
wattrset (show_pad,A_NORMAL);
}
}
wprintw (show_pad," ");
for (i=0;i<16;i++) {
if (file_info.file_offset+offset+i>file_info.file_length-1) break;
if (file_info.offset_in_block==offset+i)
wattrset (show_pad,A_REVERSE);
wprintw (show_pad,"%02x",ch_ptr [i]);
if (file_info.offset_in_block==offset+i) {
wattrset (show_pad,A_NORMAL);
show_pad_info.line=l-l % show_pad_info.display_lines;
}
wprintw (show_pad," ");
}
wprintw (show_pad,"\n");
offset+=i;
ch_ptr+=i;
}
show_pad_info.max_line=l-1;
refresh_show_pad ();
show_status ();
}
void help (char *command_line)
{
int i,max_line=0;
char argument [80],*ptr;
werase (show_pad);wmove (show_pad,0,0);
ptr=parse_word (command_line,argument);
if (*ptr!=0) {
ptr=parse_word (ptr,argument);
if (*argument!=0) {
detailed_help (argument);
return;
}
}
if (current_type!=NULL) {
wprintw (show_pad,"Type %s specific commands:\n",current_type->name);max_line++;
if (current_type->type_commands.last_command==-1) {
wprintw (show_pad,"\nnone\n");max_line+=2;
}
else
for (i=0;i<=current_type->type_commands.last_command;i++) {
if (i%5==0) {
wprintw (show_pad,"\n");max_line++;
}
wprintw (show_pad,"%-13s",current_type->type_commands.names [i]);
if (i%5!=4)
wprintw (show_pad,"; ");
}
wprintw (show_pad,"\n\n");max_line+=2;
}
if (ext2_commands.last_command != -1) {
wprintw (show_pad,"ext2 filesystem general commands: \n");max_line++;
for (i=0;i<=ext2_commands.last_command;i++) {
if (i%5==0) {
wprintw (show_pad,"\n");max_line++;
}
wprintw (show_pad,"%-13s",ext2_commands.names [i]);
if (i%5!=4)
wprintw (show_pad,"; ");
}
wprintw (show_pad,"\n\n");max_line+=2;
}
wprintw (show_pad,"General commands: \n");
for (i=0;i<=general_commands.last_command;i++) {
if (i%5==0) {
wprintw (show_pad,"\n");max_line++;
}
wprintw (show_pad,"%-13s",general_commands.names [i]);
if (i%5!=4)
wprintw (show_pad,"; ");
}
wprintw (show_pad,"\n\n");max_line+=2;
wprintw (show_pad,"EXT2ED ver %s (%s)\n",E2FSPROGS_VERSION, E2FSPROGS_DATE);
wprintw (show_pad,"Copyright (C) 1995 Gadi Oxman\n");
wprintw (show_pad,"Reviewed 2001 Christian Bac\n");
wprintw (show_pad,"Modified and enchanced by Theodore Ts'o, 2002\n");
wprintw (show_pad,"EXT2ED is hereby placed under the terms of the GNU General Public License.\n\n");
wprintw (show_pad,"EXT2ED was programmed as a student project in the software laboratory\n");
wprintw (show_pad,"of the faculty of electrical engineering in the\n");
wprintw (show_pad,"Technion - Israel Institute of Technology\n");
wprintw (show_pad,"with the guide of Avner Lottem and Dr. Ilana David.\n");
max_line+=10;
show_pad_info.line=0;show_pad_info.max_line=max_line;
werase (show_win);wmove (show_win,0,0);
wprintw (show_win,"EXT2ED help");
refresh_show_win ();
refresh_show_pad ();
}
void pgup (char *command_line)
{
show_pad_info.line-=show_pad_info.display_lines;
refresh_show_pad ();refresh_show_win ();
}
void pgdn (char *commnad_line)
{
show_pad_info.line+=show_pad_info.display_lines;
refresh_show_pad ();refresh_show_win ();
}
void show (char *command_line)
{
unsigned int i,l,len,temp_int;
unsigned long offset=0,temp_long;
unsigned char temp_char,*ch_ptr;
void *ptr;
if (device_handle==NULL)
return;
show_pad_info.line=0;
if (current_type==NULL) {
wmove (show_pad,0,0);
ch_ptr=type_data.u.buffer;
for (l=0;l<file_system_info.block_size/16;l++) {
wprintw (show_pad,"%08ld : ",offset);
for (i=0;i<16;i++) {
if (type_data.offset_in_block==offset+i)
wattrset (show_pad,A_REVERSE);
if (ch_ptr [i]>=' ' && ch_ptr [i]<='z')
wprintw (show_pad,"%c",ch_ptr [i]);
else
wprintw (show_pad,".");
if (type_data.offset_in_block==offset+i)
wattrset (show_pad,A_NORMAL);
}
wprintw (show_pad," ");
for (i=0;i<16;i++) {
if (type_data.offset_in_block==offset+i)
wattrset (show_pad,A_REVERSE);
wprintw (show_pad,"%02x",ch_ptr [i]);
if (type_data.offset_in_block==offset+i) {
wattrset (show_pad,A_NORMAL);
show_pad_info.line=l-l % show_pad_info.display_lines;
}
wprintw (show_pad," ");
}
wprintw (show_pad,"\n");
offset+=16;
ch_ptr+=16;
}
show_pad_info.max_line=l-1;show_pad_info.max_col=COLS-1;
refresh_show_pad ();show_info ();
}
else {
wmove (show_pad,0,0);l=0;
for (i=0;i<current_type->fields_num;i++) {
wprintw (show_pad,"%-20s = ",current_type->field_names [i]);
ptr=type_data.u.buffer+offset;
len = current_type->field_lengths[i];
switch (current_type->field_types[i]) {
case FIELD_TYPE_INT:
show_int(len, ptr);
break;
case FIELD_TYPE_UINT:
show_uint(len, ptr);
break;
case FIELD_TYPE_CHAR:
show_char(len, ptr);
break;
default:
wprintw (show_pad, "unimplemented\n");
break;
}
offset+=len;
l++;
}
current_type->length=offset;
show_pad_info.max_line=l-1;
refresh_show_pad ();show_info ();
}
}
void type_ext2_inode___show (char *command_line)
{
struct ext2_inode *inode_ptr;
unsigned short temp;
int i;
long group_num,group_offset,entry_num,block_num,first_entry,last_entry,inode_num;
struct ext2_group_desc desc;
block_num=device_offset/file_system_info.block_size;
group_num=inode_offset_to_group_num (device_offset);
group_offset=file_system_info.first_group_desc_offset+group_num*sizeof (struct ext2_group_desc);
low_read ((char *) &desc,sizeof (struct ext2_group_desc),group_offset);
entry_num=(device_offset-desc.bg_inode_table*file_system_info.block_size)/sizeof (struct ext2_inode);
first_entry=0;last_entry=file_system_info.super_block.s_inodes_per_group-1;
inode_num=group_num*file_system_info.super_block.s_inodes_per_group+1;
inode_num+=entry_num;
inode_ptr=&type_data.u.t_ext2_inode;
show (command_line);
wmove (show_pad,0,40);wprintw (show_pad,"octal = %06o ",inode_ptr->i_mode);
for (i=6;i>=0;i-=3) {
temp=inode_ptr->i_mode & 0x1ff;
temp=temp >> i;
if (temp & 4)
wprintw (show_pad,"r");
else
wprintw (show_pad,"-");
if (temp & 2)
wprintw (show_pad,"w");
else
wprintw (show_pad,"-");
if (temp & 1)
wprintw (show_pad,"x");
else
wprintw (show_pad,"-");
}
wmove (show_pad,3,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_inode.i_atime));
wmove (show_pad,4,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_inode.i_ctime));
wmove (show_pad,5,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_inode.i_mtime));
wmove (show_pad,6,40);wprintw (show_pad,"%s",ctime ((time_t *) &type_data.u.t_ext2_inode.i_dtime));
wmove (show_pad,10,40);
temp=inode_ptr->i_flags;
if (temp & EXT2_SECRM_FL)
wprintw (show_pad,"s");
else
wprintw (show_pad,"-");
if (temp & EXT2_UNRM_FL)
wprintw (show_pad,"u");
else
wprintw (show_pad,"-");
if (temp & EXT2_COMPR_FL)
wprintw (show_pad,"c");
else
wprintw (show_pad,"-");
if (temp & EXT2_SYNC_FL)
wprintw (show_pad,"S");
else
wprintw (show_pad,"-");
if (temp & EXT2_IMMUTABLE_FL)
wprintw (show_pad,"i");
else
wprintw (show_pad,"-");
if (temp & EXT2_APPEND_FL)
wprintw (show_pad,"a");
else
wprintw (show_pad,"-");
if (temp & EXT2_NODUMP_FL)
wprintw (show_pad,"d");
else
wprintw (show_pad,"-");
refresh_show_pad ();
wmove (show_win,1,0);
wprintw (show_win,"Inode %ld of %ld. Entry %ld of %ld in group descriptor %ld.\n"
,inode_num,file_system_info.super_block.s_inodes_count,entry_num,last_entry,group_num);
wprintw (show_win,"Inode type: ");
if (inode_num < EXT2_GOOD_OLD_FIRST_INO) {
switch (inode_num) {
case EXT2_BAD_INO:
wprintw (show_win,"Bad blocks inode - ");
break;
case EXT2_ROOT_INO:
wprintw (show_win,"Root inode - ");
break;
case EXT2_ACL_IDX_INO:
wprintw (show_win,"ACL index inode - ");
break;
case EXT2_ACL_DATA_INO:
wprintw (show_win,"ACL data inode - ");
break;
case EXT2_BOOT_LOADER_INO:
wprintw (show_win,"Boot loader inode - ");
break;
case EXT2_UNDEL_DIR_INO:
wprintw (show_win,"Undelete directory inode - ");
break;
default:
wprintw (show_win,"Reserved inode - ");
break;
}
}
if (type_data.u.t_ext2_inode.i_mode==0)
wprintw (show_win,"Free. ");
if (S_ISREG (type_data.u.t_ext2_inode.i_mode))
wprintw (show_win,"File. ");
if (S_ISDIR (type_data.u.t_ext2_inode.i_mode))
wprintw (show_win,"Directory. ");
if (S_ISLNK (type_data.u.t_ext2_inode.i_mode)) {
wprintw (show_win,"Symbolic link. ");
wmove (show_pad,12,40);
if (inode_ptr->i_size <= 60)
wprintw (show_pad,"-> %s",(char *) &type_data.u.t_ext2_inode.i_block [0]);
else
wprintw (show_pad,"Slow symbolic link\n");
refresh_show_pad ();
}
if (S_ISCHR (type_data.u.t_ext2_inode.i_mode))
wprintw (show_win,"Character device.");
if (S_ISBLK (type_data.u.t_ext2_inode.i_mode))
wprintw (show_win,"Block device. ");
wprintw (show_win,"\n");refresh_show_win ();
if (entry_num==last_entry) {
wprintw (command_win,"Reached last inode in current group descriptor\n");
refresh_command_win ();
}
if (entry_num==first_entry) {
wprintw (command_win,"Reached first inode in current group descriptor\n");
refresh_command_win ();
}
}
void type_ext2_block_bitmap___show (char *command_line)
/*
We show the bitmap as a series of bits, grouped at 8-bit intervals. We display 8 such groups on each line.
The current position (as known from block_bitmap_info.entry_num) is highlighted.
*/
{
int i,j;
unsigned char *ptr;
unsigned long block_num,entry_num;
ptr=type_data.u.buffer;
show_pad_info.line=0;show_pad_info.max_line=-1;
wmove (show_pad,0,0);
for (i=0,entry_num=0;i<file_system_info.super_block.s_blocks_per_group/8;i++,ptr++) {
for (j=1;j<=128;j*=2) { /* j contains the and bit mask */
if (entry_num==block_bitmap_info.entry_num) { /* Highlight the current entry */
wattrset (show_pad,A_REVERSE);
show_pad_info.line=show_pad_info.max_line-show_pad_info.display_lines/2;
}
if ((*ptr) & j) /* Apply the mask */
wprintw (show_pad,"1");
else
wprintw (show_pad,"0");
if (entry_num==block_bitmap_info.entry_num)
wattrset (show_pad,A_NORMAL);
entry_num++; /* Pass to the next entry */
}
wprintw (show_pad," ");
if (i%8==7) { /* Display 8 groups in a row */
wprintw (show_pad,"\n");
show_pad_info.max_line++;
}
}
refresh_show_pad ();
show_info (); /* Show the usual information */
/* Show the group number */
wmove (show_win,1,0);
wprintw (show_win,"Block bitmap of block group %ld\n",block_bitmap_info.group_num);
/* Show the block number */
block_num=block_bitmap_info.entry_num+block_bitmap_info.group_num*file_system_info.super_block.s_blocks_per_group;
block_num+=file_system_info.super_block.s_first_data_block;
wprintw (show_win,"Status of block %ld - ",block_num); /* and the allocation status */
ptr=type_data.u.buffer+block_bitmap_info.entry_num/8;
j=1;
for (i=block_bitmap_info.entry_num % 8;i>0;i--)
j*=2;
if ((*ptr) & j)
wprintw (show_win,"Allocated\n");
else
wprintw (show_win,"Free\n");
refresh_show_win ();
}
void type_dir___set (char *command_line)
{
int found=0;
unsigned char *ptr,buffer [80],variable [80],value [80],temp [80];
struct ext2_dir_entry_2 *dir_entry_ptr;
dir_entry_ptr=(struct ext2_dir_entry_2 *) (file_info.buffer+file_info.dir_entry_offset);
ptr=parse_word (command_line,buffer);
if (*ptr==0) {
wprintw (command_win,"Error - Missing arguments\n");refresh_command_win ();
return;
}
parse_word (ptr,buffer);
ptr=strchr (buffer,'=');
if (ptr==NULL) {
wprintw (command_win,"Error - Bad syntax\n");refresh_command_win ();return;
}
strncpy (variable,buffer,ptr-buffer);variable [ptr-buffer]=0;
strcpy (value,++ptr);
if (strcasecmp ("inode",variable)==0) {
found=1;
dir_entry_ptr->inode=atol (value);
wprintw (command_win,"Variable %s set to %lu\n",variable,dir_entry_ptr->inode);refresh_command_win ();
}
if (strcasecmp ("rec_len",variable)==0) {
found=1;
dir_entry_ptr->rec_len=(unsigned int) atol (value);
wprintw (command_win,"Variable %s set to %lu\n",variable,dir_entry_ptr->rec_len);refresh_command_win ();
}
if (strcasecmp ("name_len",variable)==0) {
found=1;
dir_entry_ptr->name_len=(unsigned int) atol (value);
wprintw (command_win,"Variable %s set to %lu\n",variable,dir_entry_ptr->name_len);refresh_command_win ();
}
if (strcasecmp ("name",variable)==0) {
found=1;
if (strlen (value) > dir_entry_ptr->name_len) {
wprintw (command_win,"Error - Length of name greater then name_len\n");
refresh_command_win ();return;
}
strncpy (dir_entry_ptr->name,value,strlen (value));
wprintw (command_win,"Variable %s set to %s\n",variable,value);refresh_command_win ();
}
if (found) {
wattrset (show_pad,A_REVERSE);
strncpy (temp,dir_entry_ptr->name,dir_entry_ptr->name_len);
temp [dir_entry_ptr->name_len]=0;
wmove (show_pad,file_info.dir_entry_num,0);
wprintw (show_pad,"inode = %-8lu rec_len = %-4lu name_len = %-3lu name = %s\n",
dir_entry_ptr->inode,dir_entry_ptr->rec_len,dir_entry_ptr->name_len,temp);
wattrset (show_pad,A_NORMAL);
show_pad_info.line=file_info.dir_entry_num-show_pad_info.display_lines/2;
refresh_show_pad ();
show_dir_status ();
}
else {
wprintw (command_win,"Error - Variable %s not found\n",variable);
refresh_command_win ();
}
}
