48 lines
783 B
Raku
48 lines
783 B
Raku
#!/usr/local/bin/perl
|
|
|
|
($#ARGV == 1) || die "usage: cmp.pl <file1> <file2>\n";
|
|
|
|
open(IN0,"<$ARGV[0]") || die "unable to open $ARGV[0]\n";
|
|
open(IN1,"<$ARGV[1]") || die "unable to open $ARGV[1]\n";
|
|
binmode IN0;
|
|
binmode IN1;
|
|
|
|
$tot=0;
|
|
$ret=1;
|
|
for (;;)
|
|
{
|
|
$n1=sysread(IN0,$b1,4096);
|
|
$n2=sysread(IN1,$b2,4096);
|
|
|
|
last if ($n1 != $n2);
|
|
last if ($b1 ne $b2);
|
|
last if ($n1 < 0);
|
|
if ($n1 == 0)
|
|
{
|
|
$ret=0;
|
|
last;
|
|
}
|
|
$tot+=$n1;
|
|
}
|
|
|
|
close(IN0);
|
|
close(IN1);
|
|
if ($ret)
|
|
{
|
|
printf STDERR "$ARGV[0] and $ARGV[1] are different\n";
|
|
@a1=unpack("C*",$b1);
|
|
@a2=unpack("C*",$b2);
|
|
for ($i=0; $i<=$#a1; $i++)
|
|
{
|
|
if ($a1[$i] ne $a2[$i])
|
|
{
|
|
printf "%02X %02X <<\n",$a1[$i],$a2[$i];
|
|
last;
|
|
}
|
|
}
|
|
$nm=$tot+$n1;
|
|
$tot+=$i+1;
|
|
printf STDERR "diff at char $tot of $nm\n";
|
|
}
|
|
exit($ret);
|