34 open(F,$f) || die "OPEN : $!\n";
     35 binmode(F);

     41 FILE:{
     42 if(($fsize - $size)<=0) { 
     43     my $count=0;
     44     print "Creating file $nr\n";
     45     open(C,">$nr") || die "CREATE : $!\n";
     46     while($count != $fsize) {
     47         $count+=read(F,$buffer,$BUFFER_SIZE);
     48         print C $buffer;
     49     }
     50     close C;
     51     last FILE;
     52 }
     53 else {
     54     my $count=0;
     55     print "Creating file $nr\n";
     56     open(C,">$nr") || die "CREATE : $!\n";
     57     while($count != $size) {
     58         $count+=read(F,$buffer,$BUFFER_SIZE);
     59         print C $buffer;
     60     }
     61     close C;
     62     $fsize-=$size;
     63     $nr++;
     64     redo FILE;
     65 }
     66 }
[download]

You binmode the input filehandle but you don't binmode the output filehandle?

read may not return exactly $BUFFER_SIZE bytes so this could result in an infinite loop.

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