objxref.pl revision 296341 
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
42for(my $i = 0; $i <= $#srt1; $i++)
43	{
44	$xref_tbl{$srt1[$i]}[2] = $i;
45	}
46
47my @srt2 = sort
48	{
49	my$ap1 = $oid_tbl{$xref_tbl{$a}[0]};
50	my$bp1 = $oid_tbl{$xref_tbl{$b}[0]};
51	return $ap1 - $bp1 if ($ap1 != $bp1);
52	my$ap2 = $oid_tbl{$xref_tbl{$a}[1]};
53	my$bp2 = $oid_tbl{$xref_tbl{$b}[1]};
54
55	return $ap2 - $bp2;
56	} @xrkeys;
57
58my $pname = $0;
59
60$pname =~ s|^.[^/]/||;
61
62print <<EOF;
63/* AUTOGENERATED BY $pname, DO NOT EDIT */
64
65typedef struct {
66    int sign_id;
67    int hash_id;
68    int pkey_id;
69} nid_triple;
70
71static const nid_triple sigoid_srt[] = {
72EOF
73
74foreach (@srt1)
75	{
76	my $xr = $_;
77	my ($p1, $p2) = @{$xref_tbl{$_}};
78	my $o1 = "    {NID_$xr, NID_$p1,";
79	my $o2 = "NID_$p2},";
80        if (length("$o1 $o2") < 78)
81		{
82		print "$o1 $o2\n";
83		}
84	else
85		{
86		print "$o1\n     $o2\n";
87		}
88        }
89
90print "};";
91print <<EOF;
92
93
94static const nid_triple *const sigoid_srt_xref[] = {
95EOF
96
97foreach (@srt2)
98	{
99	my ($p1, $p2, $x) = @{$xref_tbl{$_}};
100	# If digest or signature algorithm is "undef" then the algorithm
101	# needs special handling and is excluded from the cross reference table.
102	next if $p1 eq "undef" || $p2 eq "undef";
103	print "    \&sigoid_srt\[$x\],\n";
104	}
105
106print "};\n";
107
108sub check_oid
109	{
110	my ($chk) = @_;
111	if (!exists $oid_tbl{$chk})
112		{
113		die "Not Found \"$chk\"\n";
114		}
115	}
116