575 lines
16 KiB
Plaintext
575 lines
16 KiB
Plaintext
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#! /usr/bin/env perl
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# Copyright 2002-2019 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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require 5.10.0;
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use warnings;
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use strict;
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use Pod::Checker;
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use File::Find;
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use File::Basename;
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use File::Spec::Functions;
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use Getopt::Std;
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use lib catdir(dirname($0), "perl");
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use OpenSSL::Util::Pod;
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# Options.
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our($opt_d);
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our($opt_h);
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our($opt_l);
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our($opt_n);
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our($opt_p);
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our($opt_u);
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our($opt_c);
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sub help()
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{
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print <<EOF;
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Find small errors (nits) in documentation. Options:
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-d Detailed list of undocumented (implies -u)
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-l Print bogus links
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-n Print nits in POD pages
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-p Warn if non-public name documented (implies -n)
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-u Count undocumented functions
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-h Print this help message
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-c List undocumented commands and options
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EOF
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exit;
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}
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my $temp = '/tmp/docnits.txt';
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my $OUT;
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my %public;
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my %mandatory_sections =
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( '*' => [ 'NAME', 'DESCRIPTION', 'COPYRIGHT' ],
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1 => [ 'SYNOPSIS', 'OPTIONS' ],
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3 => [ 'SYNOPSIS', 'RETURN VALUES' ],
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5 => [ ],
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7 => [ ] );
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# Cross-check functions in the NAME and SYNOPSIS section.
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sub name_synopsis()
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{
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my $id = shift;
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my $filename = shift;
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my $contents = shift;
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# Get NAME section and all words in it.
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return unless $contents =~ /=head1 NAME(.*)=head1 SYNOPSIS/ms;
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my $tmp = $1;
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$tmp =~ tr/\n/ /;
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print "$id trailing comma before - in NAME\n" if $tmp =~ /, *-/;
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$tmp =~ s/ -.*//g;
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$tmp =~ s/ */ /g;
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print "$id missing comma in NAME\n" if $tmp =~ /[^,] /;
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$tmp =~ s/,//g;
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my $dirname = dirname($filename);
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my $simplename = basename($filename);
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$simplename =~ s/.pod$//;
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my $foundfilename = 0;
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my %foundfilenames = ();
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my %names;
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foreach my $n ( split ' ', $tmp ) {
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$names{$n} = 1;
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$foundfilename++ if $n eq $simplename;
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$foundfilenames{$n} = 1
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if -f "$dirname/$n.pod" && $n ne $simplename;
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}
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print "$id the following exist as other .pod files:\n",
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join(" ", sort keys %foundfilenames), "\n"
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if %foundfilenames;
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print "$id $simplename (filename) missing from NAME section\n"
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unless $foundfilename;
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foreach my $n ( keys %names ) {
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print "$id $n is not public\n"
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if $opt_p and !defined $public{$n};
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}
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# Find all functions in SYNOPSIS
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return unless $contents =~ /=head1 SYNOPSIS(.*)=head1 DESCRIPTION/ms;
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my $syn = $1;
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foreach my $line ( split /\n+/, $syn ) {
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my $sym;
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$line =~ s/STACK_OF\([^)]+\)/int/g;
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$line =~ s/__declspec\([^)]+\)//;
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if ( $line =~ /env (\S*)=/ ) {
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# environment variable env NAME=...
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$sym = $1;
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} elsif ( $line =~ /typedef.*\(\*(\S+)\)\(.*/ ) {
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# a callback function pointer: typedef ... (*NAME)(...
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$sym = $1;
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} elsif ( $line =~ /typedef.* (\S+)\(.*/ ) {
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# a callback function signature: typedef ... NAME(...
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$sym = $1;
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} elsif ( $line =~ /typedef.* (\S+);/ ) {
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# a simple typedef: typedef ... NAME;
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$sym = $1;
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} elsif ( $line =~ /enum (\S*) \{/ ) {
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# an enumeration: enum ... {
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$sym = $1;
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} elsif ( $line =~ /#define ([A-Za-z0-9_]+)/ ) {
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$sym = $1;
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} elsif ( $line =~ /([A-Za-z0-9_]+)\(/ ) {
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$sym = $1;
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}
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else {
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next;
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}
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print "$id $sym missing from NAME section\n"
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unless defined $names{$sym};
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$names{$sym} = 2;
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# Do some sanity checks on the prototype.
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print "$id prototype missing spaces around commas: $line\n"
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if ( $line =~ /[a-z0-9],[^ ]/ );
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}
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foreach my $n ( keys %names ) {
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next if $names{$n} == 2;
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print "$id $n missing from SYNOPSIS\n";
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}
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}
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# Check if SECTION ($3) is located before BEFORE ($4)
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sub check_section_location()
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{
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my $id = shift;
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my $contents = shift;
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my $section = shift;
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my $before = shift;
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return
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unless $contents =~ /=head1 $section/ and $contents =~ /=head1 $before/;
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print "$id $section should be placed before $before section\n"
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if $contents =~ /=head1 $before.*=head1 $section/ms;
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}
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sub check()
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{
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my $filename = shift;
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my $dirname = basename(dirname($filename));
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my $contents = '';
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{
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local $/ = undef;
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open POD, $filename or die "Couldn't open $filename, $!";
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$contents = <POD>;
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close POD;
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}
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my $id = "${filename}:1:";
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# Check ordering of some sections in man3
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if ( $filename =~ m|man3/| ) {
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&check_section_location($id, $contents, "RETURN VALUES", "EXAMPLES");
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&check_section_location($id, $contents, "SEE ALSO", "HISTORY");
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&check_section_location($id, $contents, "EXAMPLES", "SEE ALSO");
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}
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&name_synopsis($id, $filename, $contents)
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unless $contents =~ /=for comment generic/
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or $filename =~ m@man[157]/@;
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print "$id doesn't start with =pod\n"
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if $contents !~ /^=pod/;
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print "$id doesn't end with =cut\n"
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if $contents !~ /=cut\n$/;
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print "$id more than one cut line.\n"
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if $contents =~ /=cut.*=cut/ms;
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print "$id EXAMPLE not EXAMPLES section.\n"
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if $contents =~ /=head1 EXAMPLE[^S]/;
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print "$id WARNING not WARNINGS section.\n"
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if $contents =~ /=head1 WARNING[^S]/;
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print "$id missing copyright\n"
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if $contents !~ /Copyright .* The OpenSSL Project Authors/;
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print "$id copyright not last\n"
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if $contents =~ /head1 COPYRIGHT.*=head/ms;
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print "$id head2 in All uppercase\n"
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if $contents =~ /head2\s+[A-Z ]+\n/;
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print "$id extra space after head\n"
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if $contents =~ /=head\d\s\s+/;
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print "$id period in NAME section\n"
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if $contents =~ /=head1 NAME.*\.\n.*=head1 SYNOPSIS/ms;
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print "$id POD markup in NAME section\n"
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if $contents =~ /=head1 NAME.*[<>].*=head1 SYNOPSIS/ms;
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print "$id Duplicate $1 in L<>\n"
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if $contents =~ /L<([^>]*)\|([^>]*)>/ && $1 eq $2;
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print "$id Bad =over $1\n"
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if $contents =~ /=over([^ ][^24])/;
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print "$id Possible version style issue\n"
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if $contents =~ /OpenSSL version [019]/;
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if ( $contents !~ /=for comment multiple includes/ ) {
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# Look for multiple consecutive openssl #include lines
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# (non-consecutive lines are okay; see man3/MD5.pod).
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if ( $contents =~ /=head1 SYNOPSIS(.*)=head1 DESCRIPTION/ms ) {
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my $count = 0;
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foreach my $line ( split /\n+/, $1 ) {
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if ( $line =~ m@include <openssl/@ ) {
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print "$id has multiple includes\n" if ++$count == 2;
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} else {
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$count = 0;
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}
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}
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}
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}
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open my $OUT, '>', $temp
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or die "Can't open $temp, $!";
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podchecker($filename, $OUT);
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close $OUT;
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open $OUT, '<', $temp
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or die "Can't read $temp, $!";
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while ( <$OUT> ) {
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next if /\(section\) in.*deprecated/;
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print;
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}
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close $OUT;
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unlink $temp || warn "Can't remove $temp, $!";
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# Find what section this page is in; assume 3.
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my $section = 3;
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$section = $1 if $dirname =~ /man([1-9])/;
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foreach ((@{$mandatory_sections{'*'}}, @{$mandatory_sections{$section}})) {
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# Skip "return values" if not -s
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print "$id: missing $_ head1 section\n"
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if $contents !~ /^=head1\s+${_}\s*$/m;
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}
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}
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my %dups;
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sub parsenum()
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{
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my $file = shift;
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my @apis;
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open my $IN, '<', $file
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or die "Can't open $file, $!, stopped";
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while ( <$IN> ) {
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next if /^#/;
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next if /\bNOEXIST\b/;
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next if /\bEXPORT_VAR_AS_FUNC\b/;
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my @fields = split();
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die "Malformed line $_"
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if scalar @fields != 2 && scalar @fields != 4;
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push @apis, $fields[0];
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}
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close $IN;
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print "# Found ", scalar(@apis), " in $file\n" unless $opt_p;
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return sort @apis;
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}
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sub getdocced()
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{
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my $dir = shift;
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my %return;
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foreach my $pod ( glob("$dir/*.pod") ) {
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my %podinfo = extract_pod_info($pod);
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foreach my $n ( @{$podinfo{names}} ) {
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$return{$n} = $pod;
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print "# Duplicate $n in $pod and $dups{$n}\n"
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if defined $dups{$n} && $dups{$n} ne $pod;
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$dups{$n} = $pod;
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}
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}
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return %return;
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}
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my %docced;
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sub checkmacros()
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{
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my $count = 0;
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my %seen;
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print "# Checking macros (approximate)\n";
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foreach my $f ( glob('include/openssl/*.h') ) {
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# Skip some internals we don't want to document yet.
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next if $f eq 'include/openssl/asn1.h';
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next if $f eq 'include/openssl/asn1t.h';
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next if $f eq 'include/openssl/err.h';
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open(IN, $f) || die "Can't open $f, $!";
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while ( <IN> ) {
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next unless /^#\s*define\s*(\S+)\(/;
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my $macro = $1;
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next if $docced{$macro} || defined $seen{$macro};
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next if $macro =~ /i2d_/
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|| $macro =~ /d2i_/
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|| $macro =~ /DEPRECATEDIN/
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|| $macro =~ /IMPLEMENT_/
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|| $macro =~ /DECLARE_/;
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print "$f:$macro\n" if $opt_d;
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$count++;
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$seen{$macro} = 1;
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}
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close(IN);
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}
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print "# Found $count macros missing (not all should be documented)\n"
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}
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sub printem()
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{
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my $libname = shift;
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my $numfile = shift;
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my $count = 0;
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my %seen;
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foreach my $func ( &parsenum($numfile) ) {
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next if $docced{$func} || defined $seen{$func};
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# Skip ASN1 utilities
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next if $func =~ /^ASN1_/;
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print "$libname:$func\n" if $opt_d;
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$count++;
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$seen{$func} = 1;
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}
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print "# Found $count missing from $numfile\n\n";
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}
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# Collection of links in each POD file.
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# filename => [ "foo(1)", "bar(3)", ... ]
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my %link_collection = ();
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# Collection of names in each POD file.
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# "name(s)" => filename
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my %name_collection = ();
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sub collectnames {
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my $filename = shift;
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$filename =~ m|man(\d)/|;
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my $section = $1;
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my $simplename = basename($filename, ".pod");
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my $id = "${filename}:1:";
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|
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|
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my $contents = '';
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|
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{
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local $/ = undef;
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open POD, $filename or die "Couldn't open $filename, $!";
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$contents = <POD>;
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close POD;
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}
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$contents =~ /=head1 NAME([^=]*)=head1 /ms;
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my $tmp = $1;
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unless (defined $tmp) {
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print "$id weird name section\n";
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||
|
|
return;
|
||
|
|
}
|
||
|
|
$tmp =~ tr/\n/ /;
|
||
|
|
$tmp =~ s/-.*//g;
|
||
|
|
|
||
|
|
my @names = map { s/\s+//g; $_ } split(/,/, $tmp);
|
||
|
|
unless (grep { $simplename eq $_ } @names) {
|
||
|
|
print "$id missing $simplename\n";
|
||
|
|
push @names, $simplename;
|
||
|
|
}
|
||
|
|
foreach my $name (@names) {
|
||
|
|
next if $name eq "";
|
||
|
|
my $name_sec = "$name($section)";
|
||
|
|
if (! exists $name_collection{$name_sec}) {
|
||
|
|
$name_collection{$name_sec} = $filename;
|
||
|
|
} else { #elsif ($filename ne $name_collection{$name_sec}) {
|
||
|
|
print "$id $name_sec also in $name_collection{$name_sec}\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
my @foreign_names =
|
||
|
|
map { map { s/\s+//g; $_ } split(/,/, $_) }
|
||
|
|
$contents =~ /=for\s+comment\s+foreign\s+manuals:\s*(.*)\n\n/;
|
||
|
|
foreach (@foreign_names) {
|
||
|
|
$name_collection{$_} = undef; # It still exists!
|
||
|
|
}
|
||
|
|
|
||
|
|
my @links = $contents =~ /L<
|
||
|
|
# if the link is of the form L<something|name(s)>,
|
||
|
|
# then remove 'something'. Note that 'something'
|
||
|
|
# may contain POD codes as well...
|
||
|
|
(?:(?:[^\|]|<[^>]*>)*\|)?
|
||
|
|
# we're only interested in references that have
|
||
|
|
# a one digit section number
|
||
|
|
([^\/>\(]+\(\d\))
|
||
|
|
/gx;
|
||
|
|
$link_collection{$filename} = [ @links ];
|
||
|
|
}
|
||
|
|
|
||
|
|
sub checklinks {
|
||
|
|
foreach my $filename (sort keys %link_collection) {
|
||
|
|
foreach my $link (@{$link_collection{$filename}}) {
|
||
|
|
print "${filename}:1: reference to non-existing $link\n"
|
||
|
|
unless exists $name_collection{$link};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub publicize() {
|
||
|
|
foreach my $name ( &parsenum('util/libcrypto.num') ) {
|
||
|
|
$public{$name} = 1;
|
||
|
|
}
|
||
|
|
foreach my $name ( &parsenum('util/libssl.num') ) {
|
||
|
|
$public{$name} = 1;
|
||
|
|
}
|
||
|
|
foreach my $name ( &parsenum('util/private.num') ) {
|
||
|
|
$public{$name} = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
my %skips = (
|
||
|
|
'aes128' => 1,
|
||
|
|
'aes192' => 1,
|
||
|
|
'aes256' => 1,
|
||
|
|
'aria128' => 1,
|
||
|
|
'aria192' => 1,
|
||
|
|
'aria256' => 1,
|
||
|
|
'camellia128' => 1,
|
||
|
|
'camellia192' => 1,
|
||
|
|
'camellia256' => 1,
|
||
|
|
'des' => 1,
|
||
|
|
'des3' => 1,
|
||
|
|
'idea' => 1,
|
||
|
|
'[cipher]' => 1,
|
||
|
|
'[digest]' => 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
sub checkflags() {
|
||
|
|
my $cmd = shift;
|
||
|
|
my %cmdopts;
|
||
|
|
my %docopts;
|
||
|
|
my $ok = 1;
|
||
|
|
|
||
|
|
# Get the list of options in the command.
|
||
|
|
open CFH, "./apps/openssl list --options $cmd|"
|
||
|
|
|| die "Can list options for $cmd, $!";
|
||
|
|
while ( <CFH> ) {
|
||
|
|
chop;
|
||
|
|
s/ .$//;
|
||
|
|
$cmdopts{$_} = 1;
|
||
|
|
}
|
||
|
|
close CFH;
|
||
|
|
|
||
|
|
# Get the list of flags from the synopsis
|
||
|
|
open CFH, "<doc/man1/$cmd.pod"
|
||
|
|
|| die "Can't open $cmd.pod, $!";
|
||
|
|
while ( <CFH> ) {
|
||
|
|
chop;
|
||
|
|
last if /DESCRIPTION/;
|
||
|
|
next unless /\[B<-([^ >]+)/;
|
||
|
|
$docopts{$1} = 1;
|
||
|
|
}
|
||
|
|
close CFH;
|
||
|
|
|
||
|
|
# See what's in the command not the manpage.
|
||
|
|
my @undocced = ();
|
||
|
|
foreach my $k ( keys %cmdopts ) {
|
||
|
|
push @undocced, $k unless $docopts{$k};
|
||
|
|
}
|
||
|
|
if ( scalar @undocced > 0 ) {
|
||
|
|
$ok = 0;
|
||
|
|
foreach ( @undocced ) {
|
||
|
|
print "doc/man1/$cmd.pod: Missing -$_\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# See what's in the command not the manpage.
|
||
|
|
my @unimpl = ();
|
||
|
|
foreach my $k ( keys %docopts ) {
|
||
|
|
push @unimpl, $k unless $cmdopts{$k};
|
||
|
|
}
|
||
|
|
if ( scalar @unimpl > 0 ) {
|
||
|
|
$ok = 0;
|
||
|
|
foreach ( @unimpl ) {
|
||
|
|
next if defined $skips{$_};
|
||
|
|
print "doc/man1/$cmd.pod: Not implemented -$_\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $ok;
|
||
|
|
}
|
||
|
|
|
||
|
|
getopts('cdlnphu');
|
||
|
|
|
||
|
|
&help() if $opt_h;
|
||
|
|
$opt_n = 1 if $opt_p;
|
||
|
|
$opt_u = 1 if $opt_d;
|
||
|
|
|
||
|
|
die "Need one of -[cdlnpu] flags.\n"
|
||
|
|
unless $opt_c or $opt_l or $opt_n or $opt_u;
|
||
|
|
|
||
|
|
if ( $opt_c ) {
|
||
|
|
my $ok = 1;
|
||
|
|
my @commands = ();
|
||
|
|
|
||
|
|
# Get list of commands.
|
||
|
|
open FH, "./apps/openssl list -1 -commands|"
|
||
|
|
|| die "Can't list commands, $!";
|
||
|
|
while ( <FH> ) {
|
||
|
|
chop;
|
||
|
|
push @commands, $_;
|
||
|
|
}
|
||
|
|
close FH;
|
||
|
|
|
||
|
|
# See if each has a manpage.
|
||
|
|
foreach ( @commands ) {
|
||
|
|
next if $_ eq 'help' || $_ eq 'exit';
|
||
|
|
if ( ! -f "doc/man1/$_.pod" ) {
|
||
|
|
print "doc/man1/$_.pod does not exist\n";
|
||
|
|
$ok = 0;
|
||
|
|
} else {
|
||
|
|
$ok = 0 if not &checkflags($_);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# See what help is missing.
|
||
|
|
open FH, "./apps/openssl list --missing-help |"
|
||
|
|
|| die "Can't list missing help, $!";
|
||
|
|
while ( <FH> ) {
|
||
|
|
chop;
|
||
|
|
my ($cmd, $flag) = split;
|
||
|
|
print "$cmd has no help for -$flag\n";
|
||
|
|
$ok = 0;
|
||
|
|
}
|
||
|
|
close FH;
|
||
|
|
|
||
|
|
exit 1 if not $ok;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $opt_l ) {
|
||
|
|
foreach (@ARGV ? @ARGV : glob('doc/*/*.pod')) {
|
||
|
|
collectnames($_);
|
||
|
|
}
|
||
|
|
checklinks();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $opt_n ) {
|
||
|
|
&publicize() if $opt_p;
|
||
|
|
foreach (@ARGV ? @ARGV : glob('doc/*/*.pod')) {
|
||
|
|
&check($_);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $opt_u ) {
|
||
|
|
my %temp = &getdocced('doc/man3');
|
||
|
|
foreach ( keys %temp ) {
|
||
|
|
$docced{$_} = $temp{$_};
|
||
|
|
}
|
||
|
|
&printem('crypto', 'util/libcrypto.num');
|
||
|
|
&printem('ssl', 'util/libssl.num');
|
||
|
|
&checkmacros();
|
||
|
|
}
|
||
|
|
|
||
|
|
exit;
|