openssl/crypto/objects/objxref.pl
Dr. Stephen Henson 55f7fb8848 Fix cross reference table generator.
If the hash or public key algorithm is "undef" the signature type
will receive special handling and shouldn't be included in the
cross reference table.
Reviewed-by: Tim Hudson <tjh@openssl.org>
2014-11-13 13:34:42 +00:00

111 lines
1.8 KiB
Perl

#!/usr/local/bin/perl
use strict;
my %xref_tbl;
my %oid_tbl;
my ($mac_file, $xref_file) = @ARGV;
open(IN, $mac_file) || die "Can't open $mac_file";
# Read in OID nid values for a lookup table.
while (<IN>)
{
chomp;
my ($name, $num) = /^(\S+)\s+(\S+)$/;
$oid_tbl{$name} = $num;
}
close IN;
open(IN, $xref_file) || die "Can't open $xref_file";
my $ln = 1;
while (<IN>)
{
chomp;
s/#.*$//;
next if (/^\S*$/);
my ($xr, $p1, $p2) = /^(\S+)\s+(\S+)\s+(\S+)/;
check_oid($xr);
check_oid($p1);
check_oid($p2);
$xref_tbl{$xr} = [$p1, $p2, $ln];
}
my @xrkeys = keys %xref_tbl;
my @srt1 = sort { $oid_tbl{$a} <=> $oid_tbl{$b}} @xrkeys;
my $i;
for($i = 0; $i <= $#srt1; $i++)
{
$xref_tbl{$srt1[$i]}[2] = $i;
}
my @srt2 = sort
{
my$ap1 = $oid_tbl{$xref_tbl{$a}[0]};
my$bp1 = $oid_tbl{$xref_tbl{$b}[0]};
return $ap1 - $bp1 if ($ap1 != $bp1);
my$ap2 = $oid_tbl{$xref_tbl{$a}[1]};
my$bp2 = $oid_tbl{$xref_tbl{$b}[1]};
return $ap2 - $bp2;
} @xrkeys;
my $pname = $0;
$pname =~ s|^.[^/]/||;
print <<EOF;
/* AUTOGENERATED BY $pname, DO NOT EDIT */
typedef struct
{
int sign_id;
int hash_id;
int pkey_id;
} nid_triple;
static const nid_triple sigoid_srt[] =
{
EOF
foreach (@srt1)
{
my $xr = $_;
my ($p1, $p2) = @{$xref_tbl{$_}};
print "\t{NID_$xr, NID_$p1, NID_$p2},\n";
}
print "\t};";
print <<EOF;
static const nid_triple * const sigoid_srt_xref[] =
{
EOF
foreach (@srt2)
{
my ($p1, $p2, $x) = @{$xref_tbl{$_}};
# If digest or signature algorithm is "undef" then the algorithm
# needs special handling and is excluded from the cross reference table.
next if $p1 eq "undef" || $p2 eq "undef";
print "\t\&sigoid_srt\[$x\],\n";
}
print "\t};\n\n";
sub check_oid
{
my ($chk) = @_;
if (!exists $oid_tbl{$chk})
{
die "Not Found \"$chk\"\n";
}
}