3 # Perl c_rehash script, scan all files in a directory
4 # and add symbolic links to their hash values.
9 my $openssl = $ENV{OPENSSL} || "openssl";
11 my $x509hash = "-subject_hash";
12 my $crlhash = "-hash";
14 my $symlink_exists=eval {symlink("",""); 1};
18 while ( $ARGV[0] =~ '-.*' ) {
19 my $flag = shift @ARGV;
20 last if ( $flag eq '--');
21 if ( $flag =~ /-old/) {
22 $x509hash = "-subject_hash_old";
23 $crlhash = "-hash_old";
24 } elsif ( $flag =~ /-h/) {
26 } elsif ( $flag eq '-n' ) {
28 } elsif ( $flag eq '-v' ) {
32 print STDERR "Usage error; try -help.\n";
38 print "Usage: c_rehash [-old] [-h] [-v] [dirs...]\n";
39 print " -old use old-style digest\n";
40 print " -h print this help text\n";
41 print " -v print files removed and linked\n";
46 if (defined(&Cwd::getcwd)) {
53 # DOS/Win32 or Unix delimiter? Prefix our installdir, then search.
54 my $path_delim = ($pwd =~ /^[a-z]\:/i) ? ';' : ':';
55 $ENV{PATH} = "$prefix/bin" . ($ENV{PATH} ? $path_delim . $ENV{PATH} : "");
59 foreach (split /$path_delim/, $ENV{PATH}) {
60 if(-x "$_/$openssl") {
62 $openssl = "$_/$openssl";
67 print STDERR "c_rehash: rehashing skipped ('openssl' program not available)\n";
74 } elsif($ENV{SSL_CERT_DIR}) {
75 @dirlist = split /$path_delim/, $ENV{SSL_CERT_DIR};
77 $dirlist[0] = "$dir/certs";
82 $openssl="$pwd/$openssl" if (!-x $openssl);
94 print "Doing $_[0]\n";
97 my @flist = readdir(DIR);
100 # Delete any existing symbolic links
101 foreach (grep {/^[\da-f]+\.r{0,1}\d+$/} @flist) {
104 print "unlink $_" if $verbose;
108 FILE: foreach $fname (grep {/\.(pem)|(crt)|(cer)|(crl)$/} @flist) {
109 # Check to see if certificates and/or CRLs present.
110 my ($cert, $crl) = check_file($fname);
111 if(!$cert && !$crl) {
112 print STDERR "WARNING: $fname does not contain a certificate or CRL: skipping\n";
115 link_hash_cert($fname) if($cert);
116 link_hash_crl($fname) if($crl);
121 my ($is_cert, $is_crl) = (0,0);
125 if(/^-----BEGIN (.*)-----/) {
127 if($hdr =~ /^(X509 |TRUSTED |)CERTIFICATE$/) {
130 } elsif($hdr eq "X509 CRL") {
137 return ($is_cert, $is_crl);
141 # Link a certificate to its subject name hash value, each hash is of
142 # the form <hash>.<n> where n is an integer. If the hash value already exists
143 # then we need to up the value of n, unless its a duplicate in which
144 # case we skip the link. We check for duplicates by comparing the
145 # certificate fingerprints
149 $fname =~ s/'/'\\''/g;
150 my ($hash, $fprint) = `"$openssl" x509 $x509hash -fingerprint -noout -in "$fname"`;
156 # Search for an unused hash filename
157 while(exists $hashlist{"$hash.$suffix"}) {
158 # Hash matches: if fingerprint matches its a duplicate cert
159 if($hashlist{"$hash.$suffix"} eq $fprint) {
160 print STDERR "WARNING: Skipping duplicate certificate $fname\n";
166 if ($symlink_exists) {
167 symlink $fname, $hash;
168 print "link $fname -> $hash\n" if $verbose;
170 open IN,"<$fname" or die "can't open $fname for read";
171 open OUT,">$hash" or die "can't open $hash for write";
172 print OUT <IN>; # does the job for small text files
175 print "copy $fname -> $hash\n" if $verbose;
177 $hashlist{$hash} = $fprint;
180 # Same as above except for a CRL. CRL links are of the form <hash>.r<n>
184 $fname =~ s/'/'\\''/g;
185 my ($hash, $fprint) = `"$openssl" crl $crlhash -fingerprint -noout -in '$fname'`;
191 # Search for an unused hash filename
192 while(exists $hashlist{"$hash.r$suffix"}) {
193 # Hash matches: if fingerprint matches its a duplicate cert
194 if($hashlist{"$hash.r$suffix"} eq $fprint) {
195 print STDERR "WARNING: Skipping duplicate CRL $fname\n";
200 $hash .= ".r$suffix";
201 if ($symlink_exists) {
202 symlink $fname, $hash;
203 print "link $fname -> $hash\n" if $verbose;
205 system ("cp", $fname, $hash);
206 print "cp $fname -> $hash\n" if $verbose;
208 $hashlist{$hash} = $fprint;