1#!/usr/local/bin/perl
2
3use strict;
4
5my %xref_tbl;
6my %oid_tbl;
7
8my ($mac_file, $xref_file) = @ARGV;
9
10open(IN, $mac_file) || die "Can't open $mac_file";
11
12# Read in OID nid values for a lookup table.
13
14while (<IN>)
15	{
16	chomp;
17	my ($name, $num) = /^(\S+)\s+(\S+)$/;
18	$oid_tbl{$name} = $num;
19	}
20close IN;
21
22open(IN, $xref_file) || die "Can't open $xref_file";
23
24my $ln = 1;
25
26while (<IN>)
27	{
28	chomp;
29	s/#.*$//;
30	next if (/^\S*$/);
31	my ($xr, $p1, $p2) = /^(\S+)\s+(\S+)\s+(\S+)/;
32	check_oid($xr);
33	check_oid($p1);
34	check_oid($p2);
35	$xref_tbl{$xr} = [$p1, $p2, $ln];
36	}
37
38my @xrkeys = keys %xref_tbl;
39
40my @srt1 = sort { $oid_tbl{$a} <=> $oid_tbl{$b}} @xrkeys;
41
42my $i;
43for($i = 0; $i <= $#srt1; $i++)
44	{
45	$xref_tbl{$srt1[$i]}[2] = $i;
46	}
47
48my @srt2 = sort
49	{
50	my$ap1 = $oid_tbl{$xref_tbl{$a}[0]};
51	my$bp1 = $oid_tbl{$xref_tbl{$b}[0]};
52	return $ap1 - $bp1 if ($ap1 != $bp1);
53	my$ap2 = $oid_tbl{$xref_tbl{$a}[1]};
54	my$bp2 = $oid_tbl{$xref_tbl{$b}[1]};
55
56	return $ap2 - $bp2;
57	} @xrkeys;
58
59my $pname = $0;
60
61$pname =~ s|^.[^/]/||;
62
63print <<EOF;
64/* AUTOGENERATED BY $pname, DO NOT EDIT */
65
66typedef struct {
67    int sign_id;
68    int hash_id;
69    int pkey_id;
70} nid_triple;
71
72static const nid_triple sigoid_srt[] = {
73EOF
74
75foreach (@srt1)
76	{
77	my $xr = $_;
78	my ($p1, $p2) = @{$xref_tbl{$_}};
79	my $o1 = "    {NID_$xr, NID_$p1,";
80	my $o2 = "NID_$p2},";
81        if (length("$o1 $o2") < 78)
82		{
83		print "$o1 $o2\n";
84		}
85	else
86		{
87		print "$o1\n     $o2\n";
88		}
89        }
90
91print "};";
92print <<EOF;
93
94
95static const nid_triple *const sigoid_srt_xref[] = {
96EOF
97
98foreach (@srt2)
99	{
100	my ($p1, $p2, $x) = @{$xref_tbl{$_}};
101	# If digest or signature algorithm is "undef" then the algorithm
102	# needs special handling and is excluded from the cross reference table.
103	next if $p1 eq "undef" || $p2 eq "undef";
104	print "    \&sigoid_srt\[$x\],\n";
105	}
106
107print "};\n";
108
109sub check_oid
110	{
111	my ($chk) = @_;
112	if (!exists $oid_tbl{$chk})
113		{
114		die "Not Found \"$chk\"\n";
115		}
116	}
117