Version 1 of RR

Updated 2003-07-29 14:33:31

Bob Rashkin [email protected] http://users.t-3.cc/ranchocabron


My favorite app - a Hex analysis routine:

proc doScan {stadd fsz} {

    global fid fid2 val hval flnm tag

#

        . configure -cursor watch
        update

#

    set bold "-background #44aaaa -foreground white"
    set normal "-background {} -foreground {}"
    .top.val delete 0.0 end
    if {$fsz == 0} {set fsz [expr {[file size $flnm] -$stadd}]}
    if {$fsz>5000} {
        .top.val insert end "scanning more than 5000 bytes at a time\n" c1
        .top.val insert end "can result in unpredictable behavior\n" c1
    }
    set nlns [expr {$fsz/16}]
    if {[expr {fmod($fsz,16)}]>0} {incr nlns}
    set fid2 [open $flnm r]
    fconfigure $fid2 -translation binary;#<<<<<<<---this is the key statement!
    seek $fid2 $stadd start
    cd [file dirname $flnm]
    set t 0
    set lnadd $stadd
    for {set ln 1} {$ln <= $nlns} {incr ln} {
        set val [read $fid2 16]
        set nbyt [string length $val]
        set fmnum [expr {2*$nbyt}]
        binary scan $val H$fmnum hval;#<<<<<<<<<<<<<<<<<convert to hex
        .top.val insert end "[format %5d $lnadd]: "
        .top.val insert end $hval d$t
        set val [string map {"\t" " " "\n" " "} $val]
        set astr "     "
        set spcs [expr {32-$fmnum}]
        for  {set i 1} {$i<=$spcs} {incr i} {append astr " "}
        append astr "  $val"
        .top.val insert end $astr
        .top.val insert end \n
        lappend dlist d$t
        incr t
        incr lnadd 16
        if [eof $fid2] {set ln $nlns}
    }
    close $fid2
    .top.val tag configure c1 -foreground red
    # Create bindings for tags.
    foreach tag $dlist {
        .top.val tag bind $tag <Any-Enter> ".top.val tag configure $tag $bold"
        .top.val tag bind $tag <Any-Leave> ".top.val tag configure $tag $normal"
        .top.val tag bind $tag <1> "scanBin $tag"
    }

#

    . configure -cursor arrow
    update        

# } proc scanBin {hxline} {

    global val val1 val2 val3
    .middle.left.hval delete 0.0 end
    .middle.right.hval delete 0.0 end
    set val [.top.val get $hxline.first $hxline.last]
    set val2 [binary format "H32" $val]
    for {set i 0} {$i<=7} {incr i} {
        set val3 [string range $val2 $i $i]
        binary scan $val3 B8 hval;#<<<
        binary scan $val3 H2 val4
        binary scan $val3 c dval
        set dval [expr {( $dval + 0x100 ) % 0x100}]
        .middle.left.hval insert end $val4\t$hval\t$dval\n
    }
    for {set i 8} {$i<=15} {incr i} {
        set val3 [string range $val2 $i $i]
        binary scan $val3 B8 hval;#<<<
        binary scan $val3 H2 val4
        binary scan $val3 c dval
        set dval [expr {( $dval + 0x100 ) % 0x100}]
        .middle.right.hval insert end $val4\t$hval\t$dval\n
    }

} #------------------------Main------------------------------ wm title . Binary_Data_Analyzer wm deiconify . frame .top -borderwidth 4 frame .middle -borderwidth 4 frame .bottom -borderwidth 4 pack .top .middle .bottom -side top set w .top for {set i 0} {$i<65} {incr i} {append lblstr " "} set lblstr string replace $lblstr 2 5 Addr set lblstr string replace $lblstr 15 26 "16 Bytes HEX" set lblstr string replace $lblstr 52 56 ASCII label $w.read2 -text $lblstr -fg blue -font {courier 9} text $w.val -height 12 -width 65 -yscrollcommand "$w.yscr set" -font {courier 9} scrollbar $w.yscr -command "$w.val yview" pack $w.yscr -side right -fill y pack $w.read2 $w.val -side top set w .middle frame .middle.left -borderwidth 4 frame .middle.right -borderwidth 4 pack .middle.left .middle.right -side left set w .middle.left for {set i 1} {$i<=28} {incr i} {append binlbl " "} set binlbl string replace $binlbl 0 2 Hex set binlbl string replace $binlbl 9 14 Binary set binlbl string replace $binlbl 22 26 U-Int label $w.scan -text "BinaryScan 0-7" label $w.tit2 -text $binlbl -font {courier 9} -fg blue text $w.hval -height 8 -width 28 -font {courier 9} pack $w.scan $w.tit2 $w.hval -side top set w .middle.right label $w.scan -text "BinaryScan 8-15" label $w.tit2 -text $binlbl -font {courier 9} -fg blue text $w.hval -height 8 -width 28 -font {courier 9} pack $w.scan $w.tit2 $w.hval -side top

 if {[winfo depth $w] > 1} {
    set bold "-background #43ce80 -relief raised -borderwidth 1"
    set normal "-background {} -relief flat"
 } else {
    set bold "-foreground white -background black"
    set normal "-foreground {} -background {}"
 }

set w .bottom label $w.flbl -text "File name: " entry $w.fent -textvariable flnm -width 42 -font {-size 9 -weight bold} button $w.scan -text Scan -width 42 -activebackground white -command {doScan $stadd $lngt} button $w.getf -text File -command {set flnm tk_getOpenFile} frame $w.add -borderwidth 4 pack $w.add -side bottom pack $w.scan -side bottom pack $w.flbl $w.fent $w.getf -side left -padx 6 set stadd 0 set lngt 0 if {$argc>0} {set flnm lindex $argv 0;set lngt 5000;doScan 0 5000} set w .bottom.add label $w.dim -text "in Bytes > " label $w.stlab -text "start address:" entry $w.stent -textvariable stadd -width 8 label $w.lnlab -text Length: entry $w.lnent -textvariable lngt -width 8 label $w.wrng -text "0=to EOF" -justify left pack $w.dim $w.stlab $w.stent $w.lnlab $w.lnent $w.wrng -side left -padx 6 bind . <Escape> exit bind . <Return> {doScan $stadd $lngt} bind . <Control-F1> {console show} bind .bottom.add.lnent <Button-3> {set lngt file size $flnm} bind .bottom.add.stent <Button-3> {incr stadd $lngt} menu .menu -tearoff 0 set m .menu.help menu $m -tearoff 0 .menu add cascade -label "Don't panic" -menu $m -underline 0 $m add cascade -label "System" -menu .menu.help.sys -underline 0 $m add cascade -label "General" -menu .menu.help.gen -underline 0 $m add cascade -label "Quirks" -menu .menu.help.qks -underline 0 set m .menu.help.gen menu $m -tearoff 0 $m add check -label "Scan button reads in file as HEX and ASCII in 16byte chunks" $m add check -label "If start is not 0, reading starts at the address specified (in decimal)" $m add check -label "If Length is 0, the entire file is read (or to EOF)" $m add check -label "Otherwise only (decimal) Length number of bytes is read" $m add separator $m add check -label "If invoked from the command line, will take filename as argument" $m add check -label " and scan from 0 to 5000" $m add separator $m add check -label "Move cursor over any line of HEX," $m add check -label "Left click to analyze each byte of highlit line" $m add separator $m add check -label "The File button opens a file dialog" set m .menu.help.sys menu $m -tearoff 0 $m add check -label "Requires Tcl/Tk 8.3 or higher" set m .menu.help.qks menu $m -tearoff 0 $m add check -label "Right click in the Length entry to compute file size" $m add check -label "Very big files can overflow something (tag array?)" $m add check -label ">Not sure what 'very big' is but 5000 bytes or" $m add check -label " fewer at a time certainly works" $m add check -label "<Enter> (return) anywhere in the main window is the same as Scan" $m add separator $m add check -label "Right click on Start Address entry increments by Length" . configure -menu .menu