2005-04-21 16:53:53 +02:00
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/****************************************************************/
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/* */
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/* de_stdout.c */
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/* */
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/* Displaying information from the "Disk editor". */
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/* */
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/****************************************************************/
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/* origination 1989-Jan-15 Terrence W. Holm */
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/****************************************************************/
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#include <minix/config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termcap.h>
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#include <time.h>
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#include <unistd.h>
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#include <minix/const.h>
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#include <minix/type.h>
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#include "../../servers/fs/const.h"
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#include "../../servers/fs/type.h"
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#include "../../servers/fs/inode.h"
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#include <minix/fslib.h>
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#include "de.h"
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#define major(x) ( (x>>8) & 0377)
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#define minor(x) (x & 0377)
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/****************************************************************/
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/* Code for handling termcap */
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/****************************************************************/
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#define TC_BUFFER 1024 /* Size of termcap(3) buffer */
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#define TC_STRINGS 200 /* Enough room for cm,cl,so,se */
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static char *Tmove; /* (cm) - Format for tgoto */
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static char *Tclr_all; /* (cl) - Clear screen */
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static char *Treverse; /* (so) - Start reverse mode */
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static char *Tnormal; /* (se) - End reverse mode */
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char Kup = 0; /* (ku) - Up arrow key */
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char Kdown = 0; /* (kd) - Down arrow key */
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char Kleft = 0; /* (kl) - Left arrow key */
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char Kright = 0; /* (kr) - Right arrow key */
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_PROTOTYPE(void Goto , (int column , int line ));
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_PROTOTYPE(void Block_Type , (de_state *s ));
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_PROTOTYPE(void Draw_Words , (de_state *s ));
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_PROTOTYPE(void Draw_Info , (de_state *s ));
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_PROTOTYPE(void Draw_Block , (char *block ));
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_PROTOTYPE(void Draw_Map , (char *block , int max_bits ));
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_PROTOTYPE(void Draw_Offset , (de_state *s ));
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_PROTOTYPE(void Word_Pointers , (off_t old_addr , off_t new_addr ));
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_PROTOTYPE(void Block_Pointers , (off_t old_addr , off_t new_addr ));
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_PROTOTYPE(void Map_Pointers , (off_t old_addr , off_t new_addr ));
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_PROTOTYPE(void Print_Number , (Word_t number , int output_base ));
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_PROTOTYPE(void Draw_Zone_Numbers , (de_state *s , struct inode *inode ,
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int zindex , int zrow ));
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/****************************************************************/
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/* */
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/* Init_Termcap() */
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/* */
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/* Initializes the external variables for the */
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/* current terminal. */
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/* */
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/****************************************************************/
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int Init_Termcap()
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{
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char *term;
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char buffer[ TC_BUFFER ];
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static char strings[ TC_STRINGS ];
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char *s = &strings[0];
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char *Kcode;
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term = getenv( "TERM" );
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if ( term == NULL )
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return( 0 );
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if ( tgetent( buffer, term ) != 1 )
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return( 0 );
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if ( (Tmove = tgetstr( "cm", &s )) == NULL )
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return( 0 );
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if ( (Tclr_all = tgetstr( "cl", &s )) == NULL )
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return( 0 );
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if ( (Treverse = tgetstr( "so", &s )) == NULL )
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{
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Treverse = Tnormal = s;
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*s = '\0';
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++s;
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}
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else if ( (Tnormal = tgetstr( "se", &s )) == NULL )
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return( 0 );
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/* See if there are single character arrow key codes */
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if ( (Kcode = tgetstr( "ku", &s )) != NULL && strlen( Kcode ) == 1 )
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Kup = Kcode[0];
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if ( (Kcode = tgetstr( "kd", &s )) != NULL && strlen( Kcode ) == 1 )
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Kdown = Kcode[0];
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if ( (Kcode = tgetstr( "kl", &s )) != NULL && strlen( Kcode ) == 1 )
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Kleft = Kcode[0];
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if ( (Kcode = tgetstr( "kr", &s )) != NULL && strlen( Kcode ) == 1 )
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Kright = Kcode[0];
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return( 1 );
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}
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/****************************************************************/
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/* */
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/* Goto( column, line ) */
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/* */
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/* Use the termcap string to move the cursor. */
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/* */
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/****************************************************************/
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void Goto( column, line )
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int column;
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int line;
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{
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fputs( tgoto( Tmove, column, line ), stdout );
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}
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/****************************************************************/
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/* Output routines */
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/****************************************************************/
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/****************************************************************/
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/* */
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/* Draw_Help_Screen() */
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/* */
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/****************************************************************/
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void Draw_Help_Screen( s )
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de_state *s;
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{
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int down;
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int right;
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switch ( s->mode )
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{
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case WORD : down = 2; right = 32; break;
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case BLOCK : down = 64; right = 1; break;
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case MAP : down = 256; right = 4; break;
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}
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printf( "%s ", Tclr_all );
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printf( "%sDE COMMANDS%s\r\n\n\n", Treverse, Tnormal );
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printf( " PGUP b Back one block h Help\r\n" );
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printf( " PGDN f Forward one block q Quit\r\n" );
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printf( " HOME B Goto first block m Minix shell\r\n" );
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printf( " END F Goto last block\r\n" );
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printf( " v Visual mode (w b m)\r\n" );
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printf( " g Goto specified block o Output base (h d o b)\r\n" );
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printf( " G Goto block indirectly\r\n" );
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printf( " i Goto i-node c Change file name\r\n" );
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printf( " I Filename to i-node w Write ASCII block\r\n" );
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printf( " W Write block exactly\r\n" );
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printf( " / Search\r\n" );
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printf( " n Next occurrence x Extract lost entry\r\n" );
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printf( " p Previous address X Extract lost blocks\r\n" );
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printf( " s Store word\r\n" );
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printf( " UP u Move back %d bytes\r\n", down );
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printf( " DOWN d Move forward %d bytes\r\n", down );
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printf( " LEFT l Move back %d byte%s\r\n", right,
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right == 1 ? "" : "s" );
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printf( " RIGHT r Move forward %d byte%s\r\n\n\n", right,
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right == 1 ? "" : "s" );
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}
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/****************************************************************/
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/* */
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/* Wait_For_Key() */
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/* */
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/* The user must press a key to continue. */
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/* */
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/****************************************************************/
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void Wait_For_Key()
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{
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Draw_Prompt( "Press a key to continue..." );
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Get_Char();
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}
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/****************************************************************/
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/* */
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/* Draw_Prompt( string ) */
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/* */
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/* Write a message in the "prompt" area. */
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/* */
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/****************************************************************/
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void Draw_Prompt( string )
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char *string;
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{
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Goto( PROMPT_COLUMN, PROMPT_LINE );
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printf( "%s%s%s ", Treverse, string, Tnormal );
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}
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/****************************************************************/
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/* */
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/* Erase_Prompt() */
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/* */
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/* Erase the message in the "prompt" area. */
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/* */
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/****************************************************************/
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void Erase_Prompt()
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{
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Goto( PROMPT_COLUMN, PROMPT_LINE );
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printf( "%77c", ' ' );
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Goto( PROMPT_COLUMN, PROMPT_LINE );
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}
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/****************************************************************/
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/* */
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/* Draw_Screen( state ) */
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/* */
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/* Redraw everything, except pointers. */
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/* */
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/****************************************************************/
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void Draw_Screen( s )
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de_state *s;
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{
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fputs( Tclr_all, stdout );
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Draw_Strings( s );
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Block_Type( s );
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switch ( s->mode )
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{
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case WORD : Draw_Words( s );
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Draw_Info( s );
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break;
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case BLOCK : Draw_Block( s->buffer );
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break;
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case MAP : {
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int max_bits = 2 * K;
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/* Don't display the bits after the end */
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/* of the i-node or zone bit maps. */
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if ( s->block == 2 + s->inode_maps - 1 )
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max_bits = (int)
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(s->inodes_in_map
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- CHAR_BIT * K * (ino_t) (s->inode_maps - 1)
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- CHAR_BIT * (ino_t) (s->offset & ~ MAP_MASK));
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else if ( s->block == 2 + s->inode_maps + s->zone_maps - 1 )
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max_bits = (int)
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(s->zones_in_map
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- CHAR_BIT * K * (zone_t) (s->zone_maps - 1)
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- CHAR_BIT * (zone_t) (s->offset & ~ MAP_MASK));
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if ( max_bits < 0 )
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max_bits = 0;
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Draw_Map( &s->buffer[ s->offset & ~ MAP_MASK ], max_bits );
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break;
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}
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}
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}
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/****************************************************************/
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/* */
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/* Draw_Strings( state ) */
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/* */
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/* The first status line contains the device name, */
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/* the current write file name (if one is open) */
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/* and the current search string (if one has */
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/* been defined). */
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/* */
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/* Long strings are truncated. */
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/* */
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/****************************************************************/
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void Draw_Strings( s )
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de_state *s;
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{
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int len;
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int i;
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Goto( STATUS_COLUMN, STATUS_LINE );
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printf( "Device %s= %-14.14s ",
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s->device_mode == O_RDONLY ? "" : "(w) ", s->device_name );
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switch ( s->magic )
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{
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case SUPER_MAGIC : printf( "V1 file system ");
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break;
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case SUPER_REV : printf( "V1-bytes-swapped file system (?) ");
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break;
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case SUPER_V2 : printf( "V2 file system ");
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break;
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case SUPER_V2_REV : printf( "V2-bytes-swapped file system (?) ");
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break;
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2005-06-30 14:59:49 +02:00
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case SUPER_V3 : printf( "V3 file system ");
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break;
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2005-04-21 16:53:53 +02:00
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default : printf( "not a Minix file system ");
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break;
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}
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len = strlen( s->file_name );
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if ( len == 0 )
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printf( "%29s", " " );
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else if ( len <= 20 )
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printf( "File = %-20s ", s->file_name );
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else
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printf( "File = ...%17.17s ", s->file_name + len - 17 );
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len = strlen( s->search_string );
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if ( len == 0 )
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printf( "%20s", " " );
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else
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{
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printf( "Search = " );
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if ( len <= 11 )
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{
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for ( i = 0; i < len; ++i )
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Print_Ascii( s->search_string[ i ] );
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for ( ; i < 11; ++i )
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|
putchar( ' ' );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
for ( i = 0; i < 8; ++i )
|
|
|
|
Print_Ascii( s->search_string[ i ] );
|
|
|
|
|
|
|
|
printf( "..." );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Block_Type( state ) */
|
|
|
|
/* */
|
|
|
|
/* Display the current block type. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Block_Type( s )
|
|
|
|
de_state *s;
|
|
|
|
|
|
|
|
{
|
|
|
|
Goto( STATUS_COLUMN, STATUS_LINE + 1 );
|
|
|
|
|
|
|
|
printf( "Block = %5u of %-5u ", s->block, s->zones );
|
|
|
|
|
|
|
|
if ( !s->is_fs )
|
|
|
|
return;
|
|
|
|
|
|
|
|
if ( s->block == BOOT_BLOCK )
|
|
|
|
printf( "Boot block" );
|
|
|
|
|
|
|
|
else if ( s->block == 1 )
|
|
|
|
printf( "Super block" );
|
|
|
|
|
|
|
|
else if ( s->block < 2 + s->inode_maps )
|
|
|
|
printf( "I-node bit map" );
|
|
|
|
|
|
|
|
else if ( s->block < 2 + s->inode_maps + s->zone_maps )
|
|
|
|
printf( "Zone bit map" );
|
|
|
|
|
|
|
|
else if ( s->block < s->first_data )
|
|
|
|
printf( "I-nodes" );
|
|
|
|
|
|
|
|
else
|
|
|
|
printf( "Data block (%sin use)",
|
|
|
|
In_Use( (bit_t) (s->block - (s->first_data - 1)), s->zone_map )
|
|
|
|
? "" : "not " );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Words( state ) */
|
|
|
|
/* */
|
|
|
|
/* Draw a page in word format. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Words( s )
|
|
|
|
de_state *s;
|
|
|
|
|
|
|
|
{
|
|
|
|
int line;
|
|
|
|
int addr = s->offset & ~ PAGE_MASK;
|
|
|
|
|
|
|
|
|
|
|
|
for ( line = 0; line < 16; ++line, addr += 2 )
|
|
|
|
{
|
|
|
|
Goto( BLOCK_COLUMN, BLOCK_LINE + line );
|
|
|
|
|
|
|
|
printf( "%5d ", addr );
|
|
|
|
|
|
|
|
Print_Number( *( (word_t *) &s->buffer[ addr ] ), s->output_base );
|
|
|
|
}
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + 64, BLOCK_LINE );
|
|
|
|
printf( "(base %d)", s->output_base );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Info( state ) */
|
|
|
|
/* */
|
|
|
|
/* Add information to a page drawn in word format. */
|
|
|
|
/* The routine recognizes the super block, inodes, */
|
|
|
|
/* executables and "ar" archives. If the current */
|
|
|
|
/* page is not one of these, then ASCII characters */
|
|
|
|
/* are printed from the data words. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
char *super_block_info[] = { "number of inodes",
|
|
|
|
"V1 number of zones",
|
|
|
|
"inode bit map blocks",
|
|
|
|
"zone bit map blocks",
|
|
|
|
"first data zone",
|
|
|
|
"blocks per zone shift & flags",
|
|
|
|
"maximum file size",
|
|
|
|
"",
|
|
|
|
"magic number",
|
|
|
|
"fsck magic number",
|
|
|
|
"V2 number of zones" };
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Info( s )
|
|
|
|
de_state *s;
|
|
|
|
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int page = s->offset >> PAGE_SHIFT;
|
|
|
|
dev_t dev;
|
|
|
|
|
|
|
|
|
|
|
|
if ( s->is_fs && s->block == 1 && page == 0 )
|
|
|
|
for ( i = 0; i < 11; ++i )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + i );
|
|
|
|
printf( "%s", super_block_info[ i ] );
|
|
|
|
}
|
|
|
|
|
|
|
|
else if ( s->is_fs && s->block >= s->first_data - s->inode_blocks &&
|
|
|
|
s->block < s->first_data )
|
|
|
|
{
|
|
|
|
struct inode core_inode;
|
|
|
|
d1_inode *dip1;
|
|
|
|
d2_inode *dip2;
|
|
|
|
struct inode *inode = &core_inode;
|
|
|
|
int special = 0;
|
|
|
|
int m;
|
|
|
|
struct passwd *user;
|
|
|
|
struct group *grp;
|
|
|
|
|
|
|
|
dip1 = (d1_inode *) &s->buffer[ s->offset & ~ PAGE_MASK ];
|
|
|
|
dip2 = (d2_inode *) &s->buffer[ s->offset & ~ PAGE_MASK
|
|
|
|
& ~ (V2_INODE_SIZE-1) ];
|
|
|
|
conv_inode( inode, dip1, dip2, READING, s->magic );
|
|
|
|
|
|
|
|
user = getpwuid( inode->i_uid );
|
|
|
|
grp = getgrgid( inode->i_gid );
|
|
|
|
|
|
|
|
if ( s->magic != SUPER_MAGIC && page & 1 )
|
|
|
|
{
|
|
|
|
Draw_Zone_Numbers( s, inode, 2, 0 );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE );
|
|
|
|
|
|
|
|
switch( inode->i_mode & S_IFMT )
|
|
|
|
{
|
|
|
|
case S_IFDIR : printf( "directory " );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case S_IFCHR : printf( "character " );
|
|
|
|
special = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case S_IFBLK : printf( "block " );
|
|
|
|
special = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case S_IFREG : printf( "regular " );
|
|
|
|
break;
|
|
|
|
#ifdef S_IFIFO
|
|
|
|
case S_IFIFO : printf( "fifo " );
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef S_IFLNK
|
|
|
|
case S_IFLNK : printf( "symlink " );
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef S_IFSOCK
|
|
|
|
case S_IFSOCK: printf( "socket " );
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
default : printf( "unknown " );
|
|
|
|
}
|
|
|
|
|
|
|
|
for ( m = 11; m >= 0; --m )
|
|
|
|
putchar( (inode->i_mode & (1<<m)) ? "xwrxwrxwrtgu"[m] : '-' );
|
|
|
|
|
|
|
|
if ( s->magic == SUPER_MAGIC )
|
|
|
|
{
|
|
|
|
/* V1 file system */
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 1 );
|
|
|
|
printf( "user %s", user ? user->pw_name : "" );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 2 );
|
|
|
|
printf( "file size %lu", inode->i_size );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 4 );
|
|
|
|
printf( "m_time %s", ctime( &inode->i_mtime ) );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 6 );
|
|
|
|
printf( "links %d, group %s",
|
|
|
|
inode->i_nlinks, grp ? grp->gr_name : "" );
|
|
|
|
|
|
|
|
Draw_Zone_Numbers( s, inode, 0, 7 );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* V2 file system, even page. */
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 1 );
|
|
|
|
printf( "links %d ", inode->i_nlinks);
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 2 );
|
|
|
|
printf( "user %s", user ? user->pw_name : "" );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 3 );
|
|
|
|
printf( "group %s", grp ? grp->gr_name : "" );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 4 );
|
|
|
|
printf( "file size %lu", inode->i_size );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 6 );
|
|
|
|
printf( "a_time %s", ctime( &inode->i_atime ) );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 8 );
|
|
|
|
printf( "m_time %s", ctime( &inode->i_mtime ) );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 10 );
|
|
|
|
printf( "c_time %s", ctime( &inode->i_ctime ) );
|
|
|
|
|
|
|
|
Draw_Zone_Numbers( s, inode, 0, 12 );
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( special )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 7 );
|
|
|
|
dev = (dev_t) inode->i_zone[0];
|
|
|
|
printf( "major %d, minor %d", major(dev), minor(dev) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
else /* Print ASCII characters for each byte in page */
|
|
|
|
{
|
|
|
|
char *p = &s->buffer[ s->offset & ~ PAGE_MASK ];
|
|
|
|
|
|
|
|
for ( i = 0; i < 16; ++i )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + i );
|
|
|
|
Print_Ascii( *p++ );
|
|
|
|
Print_Ascii( *p++ );
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( s->block >= s->first_data && page == 0 )
|
|
|
|
{
|
|
|
|
unsigned magic = ((s->buffer[1] & 0xff) << 8) | (s->buffer[0] & 0xff);
|
|
|
|
unsigned second = ((s->buffer[3] & 0xff) << 8) | (s->buffer[2] & 0xff);
|
|
|
|
|
|
|
|
/* Is this block the start of an executable file? */
|
|
|
|
|
|
|
|
if ( magic == (unsigned) A_OUT )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE );
|
|
|
|
printf( "executable" );
|
|
|
|
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + 1 );
|
|
|
|
|
|
|
|
if ( second == (unsigned) SPLIT )
|
|
|
|
printf( "separate I & D" );
|
|
|
|
else
|
|
|
|
printf( "combined I & D" );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Block( block ) */
|
|
|
|
/* */
|
|
|
|
/* Redraw a 1k block in character format. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Block( block )
|
|
|
|
char *block;
|
|
|
|
|
|
|
|
{
|
|
|
|
int line;
|
|
|
|
int column;
|
|
|
|
int reverse = 0;
|
|
|
|
int msb_flag = 0;
|
|
|
|
|
|
|
|
|
|
|
|
for ( line = 0; line < 16; ++line )
|
|
|
|
{
|
|
|
|
Goto( BLOCK_COLUMN, BLOCK_LINE + line );
|
|
|
|
|
|
|
|
for ( column = 0; column < 64; ++column )
|
|
|
|
{
|
|
|
|
char c = *block++;
|
|
|
|
|
|
|
|
if ( c & 0x80 )
|
|
|
|
{
|
|
|
|
msb_flag = 1;
|
|
|
|
c &= 0x7f;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( c >= ' ' && c < DEL )
|
|
|
|
{
|
|
|
|
if ( reverse )
|
|
|
|
{ fputs( Tnormal, stdout ); reverse = 0; }
|
|
|
|
|
|
|
|
putchar( c );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if ( ! reverse )
|
|
|
|
{ fputs( Treverse, stdout ); reverse = 1; }
|
|
|
|
|
|
|
|
putchar( c == DEL ? '?' : '@' + c );
|
|
|
|
}
|
|
|
|
} /* end for ( column ) */
|
|
|
|
} /* end for ( line ) */
|
|
|
|
|
|
|
|
if ( reverse )
|
|
|
|
{ fputs( Tnormal, stdout ); reverse = 0; }
|
|
|
|
|
|
|
|
if ( msb_flag )
|
|
|
|
{
|
|
|
|
Goto( BLOCK_COLUMN + 68, BLOCK_LINE + 6 );
|
|
|
|
fputs( "(MSB)", stdout );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Map( block, max_bits ) */
|
|
|
|
/* */
|
|
|
|
/* Redraw a block in a bit map format. */
|
|
|
|
/* Display min( max_bits, 2048 ) bits. */
|
|
|
|
/* */
|
|
|
|
/* The 256 bytes in "block" are displayed from */
|
|
|
|
/* top to bottom and left to right. Bit 0 of */
|
|
|
|
/* a byte is towards the top of the screen. */
|
|
|
|
/* */
|
|
|
|
/* Special graphic codes are used to generate */
|
|
|
|
/* two "bits" per character position. So a 16 */
|
|
|
|
/* line by 64 column display is 32 "bits" by */
|
|
|
|
/* 64 "bits". Or 4 bytes by 64 bytes. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Map( block, max_bits )
|
|
|
|
char *block;
|
|
|
|
int max_bits;
|
|
|
|
|
|
|
|
{
|
|
|
|
int line;
|
|
|
|
int column;
|
|
|
|
int bit_count = 0;
|
|
|
|
|
|
|
|
for ( line = 0; line < 16; ++line )
|
|
|
|
{
|
|
|
|
char *p = &block[ (line & 0xC) >> 2 ];
|
|
|
|
int shift = (line & 0x3) << 1;
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN, BLOCK_LINE + line );
|
|
|
|
|
|
|
|
for ( column = 0; column < 64; ++column, p += 4 )
|
|
|
|
{
|
|
|
|
char c = (*p >> shift) & 0x3;
|
|
|
|
int current_bit = ((p - block) << 3) + shift;
|
|
|
|
|
|
|
|
/* Don't display bits past "max_bits" */
|
|
|
|
|
|
|
|
if ( current_bit >= max_bits )
|
|
|
|
break;
|
|
|
|
|
|
|
|
/* If "max_bits" occurs in between the two bits */
|
|
|
|
/* I am trying to display as one character, then */
|
|
|
|
/* zero off the high-order bit. */
|
|
|
|
|
|
|
|
if ( current_bit + 1 == max_bits )
|
|
|
|
c &= 1;
|
|
|
|
|
|
|
|
switch ( c )
|
|
|
|
{
|
|
|
|
case 0 : putchar( BOX_CLR );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 1 : putchar( BOX_TOP );
|
|
|
|
++bit_count;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2 : putchar( BOX_BOT );
|
|
|
|
++bit_count;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 3 : putchar( BOX_ALL );
|
|
|
|
bit_count += 2;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} /* end for ( column ) */
|
|
|
|
} /* end for ( line ) */
|
|
|
|
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + 68, BLOCK_LINE + 6 );
|
|
|
|
printf( "(%d)", bit_count );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Pointers( state ) */
|
|
|
|
/* */
|
|
|
|
/* Redraw the pointers and the offset field. */
|
|
|
|
/* The rest of the screen stays intact. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Pointers( s )
|
|
|
|
de_state *s;
|
|
|
|
|
|
|
|
{
|
|
|
|
Draw_Offset( s );
|
|
|
|
|
|
|
|
switch ( s->mode )
|
|
|
|
{
|
|
|
|
case WORD : Word_Pointers( s->last_addr, s->address );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case BLOCK : Block_Pointers( s->last_addr, s->address );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MAP : Map_Pointers( s->last_addr, s->address );
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
Goto( PROMPT_COLUMN, PROMPT_LINE );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Draw_Offset( state ) */
|
|
|
|
/* */
|
|
|
|
/* Display the offset in the current buffer */
|
|
|
|
/* and the relative position if within a map */
|
|
|
|
/* or i-node block. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Offset( s )
|
|
|
|
de_state *s;
|
|
|
|
|
|
|
|
{
|
|
|
|
Goto( STATUS_COLUMN, STATUS_LINE + 2 );
|
|
|
|
|
|
|
|
printf( "Offset = %5d ", s->offset );
|
|
|
|
|
|
|
|
|
|
|
|
if ( s->block < 2 )
|
|
|
|
return;
|
|
|
|
|
|
|
|
if ( s->block < 2 + s->inode_maps )
|
|
|
|
{
|
|
|
|
long bit = (s->address - 2 * K) * 8;
|
|
|
|
|
|
|
|
if ( bit < s->inodes_in_map )
|
|
|
|
printf( "I-node %ld of %d ", bit, s->inodes );
|
|
|
|
else
|
|
|
|
printf( "(padding) " );
|
|
|
|
}
|
|
|
|
|
|
|
|
else if ( s->block < 2 + s->inode_maps + s->zone_maps )
|
|
|
|
{
|
|
|
|
long bit = (s->address - (2 + s->inode_maps) * K) * 8;
|
|
|
|
|
|
|
|
if ( bit < s->zones_in_map )
|
|
|
|
printf( "Block %ld of %u ", bit + s->first_data - 1, s->zones );
|
|
|
|
else
|
|
|
|
printf( "(padding) " );
|
|
|
|
}
|
|
|
|
|
|
|
|
else if ( s->block < s->first_data )
|
|
|
|
{
|
|
|
|
bit_t node = (s->address - (2 + s->inode_maps + s->zone_maps) * K) /
|
|
|
|
s->inode_size + 1;
|
|
|
|
|
|
|
|
if ( node <= s->inodes )
|
|
|
|
printf( "I-node %lu of %lu (%sin use) ",
|
|
|
|
(unsigned long) node, (unsigned long) s->inodes,
|
|
|
|
In_Use( node, s->inode_map ) ? "" : "not " );
|
|
|
|
else
|
|
|
|
printf( "(padding) " );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Word_Pointers( old_addr, new_addr ) */
|
|
|
|
/* */
|
|
|
|
/* Block_Pointers( old_addr, new_addr ) */
|
|
|
|
/* */
|
|
|
|
/* Map_Pointers( old_addr, new_addr ) */
|
|
|
|
/* */
|
|
|
|
/* Redraw the index pointers for a each type */
|
|
|
|
/* of display. The pointer at "old_addr" is */
|
|
|
|
/* erased and a new pointer is positioned */
|
|
|
|
/* for "new_addr". This makes the screen */
|
|
|
|
/* update faster and more pleasant for the user. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Word_Pointers( old_addr, new_addr )
|
|
|
|
off_t old_addr;
|
|
|
|
off_t new_addr;
|
|
|
|
|
|
|
|
{
|
|
|
|
int from = ( (int) old_addr & PAGE_MASK ) >> 1;
|
|
|
|
int to = ( (int) new_addr & PAGE_MASK ) >> 1;
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN - 2, BLOCK_LINE + from );
|
|
|
|
putchar( ' ' );
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN - 2, BLOCK_LINE + to );
|
|
|
|
putchar( '>' );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void Block_Pointers( old_addr, new_addr )
|
|
|
|
off_t old_addr;
|
|
|
|
off_t new_addr;
|
|
|
|
|
|
|
|
{
|
|
|
|
int from = (int) old_addr & ~K_MASK;
|
|
|
|
int to = (int) new_addr & ~K_MASK;
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN - 2, BLOCK_LINE + from / 64 );
|
|
|
|
putchar( ' ' );
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN - 2, BLOCK_LINE + to / 64 );
|
|
|
|
putchar( '>' );
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + from % 64, BLOCK_LINE + 17 );
|
|
|
|
putchar( ' ' );
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + to % 64, BLOCK_LINE + 17 );
|
|
|
|
putchar( '^' );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void Map_Pointers( old_addr, new_addr )
|
|
|
|
off_t old_addr;
|
|
|
|
off_t new_addr;
|
|
|
|
|
|
|
|
{
|
|
|
|
int from = ( (int) old_addr & MAP_MASK ) >> 2;
|
|
|
|
int to = ( (int) new_addr & MAP_MASK ) >> 2;
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + from, BLOCK_LINE + 17 );
|
|
|
|
putchar( ' ' );
|
|
|
|
|
|
|
|
Goto( BLOCK_COLUMN + to, BLOCK_LINE + 17 );
|
|
|
|
putchar( '^' );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Print_Number( number, output_base ) */
|
|
|
|
/* */
|
|
|
|
/* Output "number" in the output base. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Print_Number( number, output_base )
|
|
|
|
word_t number;
|
|
|
|
int output_base;
|
|
|
|
|
|
|
|
{
|
|
|
|
switch ( output_base )
|
|
|
|
{
|
|
|
|
case 16 : printf( "%5x", number );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 10 : printf( "%7u", number );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 8 : printf( "%7o", number );
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2 : {
|
|
|
|
unsigned int mask;
|
|
|
|
char pad = ' ';
|
|
|
|
|
|
|
|
for ( mask = 0x8000; mask > 1; mask >>= 1 )
|
|
|
|
putchar( (mask & number) ? (pad = '0', '1') : pad );
|
|
|
|
|
|
|
|
putchar( (0x01 & number) ? '1' : '0' );
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
default : Error( "Internal fault (output_base)" );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Print_Ascii( char ) */
|
|
|
|
/* */
|
|
|
|
/* Display a character in reverse mode if it */
|
|
|
|
/* is not a normal printable ASCII character. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
void Print_Ascii( c )
|
|
|
|
char c;
|
|
|
|
|
|
|
|
{
|
|
|
|
c &= 0x7f;
|
|
|
|
|
|
|
|
if ( c < ' ' )
|
|
|
|
printf( "%s%c%s", Treverse, '@' + c, Tnormal );
|
|
|
|
else if ( c == DEL )
|
|
|
|
printf( "%s?%s", Treverse, Tnormal );
|
|
|
|
else
|
|
|
|
putchar( c );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
/* */
|
|
|
|
/* Warning( text, arg1, arg2 ) */
|
|
|
|
/* */
|
|
|
|
/* Display a message for 2 seconds. */
|
|
|
|
/* */
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
#if __STDC__
|
|
|
|
void Warning( const char *text, ... )
|
|
|
|
#else
|
|
|
|
void Warning( text )
|
|
|
|
char *text;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
{
|
|
|
|
va_list argp;
|
|
|
|
|
|
|
|
printf( "%c%s", BELL, Tclr_all );
|
|
|
|
|
|
|
|
Goto( WARNING_COLUMN, WARNING_LINE );
|
|
|
|
|
|
|
|
printf( "%s Warning: ", Treverse );
|
|
|
|
va_start( argp, text );
|
|
|
|
vprintf( text, argp );
|
|
|
|
va_end( argp );
|
|
|
|
printf( " %s", Tnormal );
|
|
|
|
|
|
|
|
fflush(stdout); /* why does everyone forget this? */
|
|
|
|
|
|
|
|
sleep( 2 );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void Draw_Zone_Numbers( s, inode, zindex, zrow )
|
|
|
|
de_state *s;
|
|
|
|
struct inode *inode;
|
|
|
|
int zindex;
|
|
|
|
int zrow;
|
|
|
|
|
|
|
|
{
|
|
|
|
static char *plurals[] = { "", "double ", "triple " };
|
|
|
|
zone_t zone;
|
|
|
|
|
|
|
|
for ( ; zrow < 16;
|
|
|
|
++zindex, zrow += s->zone_num_size / sizeof (word_t) )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN, INFO_LINE + zrow );
|
|
|
|
if ( zindex < s->ndzones )
|
|
|
|
printf( "zone %d", zindex );
|
|
|
|
else
|
|
|
|
printf( "%sindirect", plurals[ zindex - s->ndzones ] );
|
|
|
|
if ( s->magic != SUPER_MAGIC )
|
|
|
|
{
|
|
|
|
zone = inode->i_zone[ zindex ];
|
|
|
|
if ( zone != (word_t) zone )
|
|
|
|
{
|
|
|
|
Goto( INFO_COLUMN + 16, INFO_LINE + zrow );
|
|
|
|
printf("%ld", (long) zone );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|