script/mks3param_ctx_table.pl

   1 #!/usr/bin/perl
   2 # Generate loadparm interfaces tables for Samba3/Samba4 integration
   3 # by Andrew Bartlett
   4 # based on mkproto.pl Written by Jelmer Vernooij
   5 # based on the original mkproto.sh by Andrew Tridgell
   6
   7 use strict;
   8
   9 # don't use warnings module as it is not portable enough
  10 # use warnings;
  11
  12 use Getopt::Long;
  13 use File::Basename;
  14 use File::Path;
  15
  16 #####################################################################
  17 # read a file into a string
  18
  19 my $file = undef;
  20 my $public_define = undef;
  21 my $_public = "";
  22 my $_private = "";
  23 my $public_data = \$_public;
  24 my $builddir = ".";
  25 my $srcdir = ".";
  26
  27 sub public($)
  28 {
  29         my ($d) = @_;
  30         $$public_data .= $d;
  31 }
  32
  33 sub usage()
  34 {
  35         print "Usage: mks3param.pl [options] [c files]\n";
  36         print "OPTIONS:\n";
  37         print "  --srcdir=path          Read files relative to this directory\n";
  38         print "  --builddir=path        Write file relative to this directory\n";
  39         print "  --help                 Print this help message\n\n";
  40         exit 0;
  41 }
  42
  43 GetOptions(
  44         'file=s' => sub { my ($f,$v) = @_; $file = $v; },
  45         'srcdir=s' => sub { my ($f,$v) = @_; $srcdir = $v; },
  46         'builddir=s' => sub { my ($f,$v) = @_; $builddir = $v; },
  47         'help' => \&usage
  48 ) or exit(1);
  49
  50 sub file_load($)
  51 {
  52     my($filename) = @_;
  53     local(*INPUTFILE);
  54     open(INPUTFILE, $filename) or return undef;
  55     my($saved_delim) = $/;
  56     undef $/;
  57     my($data) = <INPUTFILE>;
  58     close(INPUTFILE);
  59     $/ = $saved_delim;
  60     return $data;
  61 }
  62
  63 sub print_header($)
  64 {
  65         my ($file) = @_;
  66         $file->("/* This file was automatically generated by mks3param_ctx.pl. DO NOT EDIT */\n\n");
  67         $file->("static const struct loadparm_s3_helpers s3_fns =\n");
  68         $file->("{\n");
  69         $file->("\t.get_parametric = lp_parm_const_string_service,\n");
  70         $file->("\t.get_parm_struct = lp_get_parameter,\n");
  71         $file->("\t.get_parm_ptr = lp_parm_ptr,\n");
  72         $file->("\t.get_service = lp_service_for_s4_ctx,\n");
  73         $file->("\t.get_servicebynum = lp_servicebynum_for_s4_ctx,\n");
  74         $file->("\t.get_default_loadparm_service = lp_default_loadparm_service,\n");
  75         $file->("\t.get_numservices = lp_numservices,\n");
  76         $file->("\t.load = lp_load_for_s4_ctx,\n");
  77         $file->("\t.set_cmdline = lp_set_cmdline,\n");
  78         $file->("\t.dump = lp_dump,\n");
  79 }
  80
  81 sub print_footer($)
  82 {
  83         my ($file) = @_;
  84         $file->("};");
  85 }
  86
  87 sub handle_loadparm($$)
  88 {
  89         my ($file,$line) = @_;
  90
  91         # STRING isn't handled here, as we still don't know what to do with the substituted vars */
  92         # LOCAL also isn't handled here
  93         if ($line =~ /^FN_(GLOBAL)_(CONST_STRING|BOOL|bool|CHAR|INTEGER|LIST)\((\w+),.*\)/o) {
  94                 my $scope = $1;
  95                 my $type = $2;
  96                 my $name = $3;
  97
  98                 $file->("\t.$name = lp_$name,\n");
  99         }
 100 }
 101
 102 sub process_file($$)
 103 {
 104         my ($file, $filename) = @_;
 105
 106         $filename =~ s/\.o$/\.c/g;
 107
 108         if ($filename =~ /^\//) {
 109                 open(FH, "<$filename") or die("Failed to open $filename");
 110         } elsif (!open(FH, "< $builddir/$filename")) {
 111             open(FH, "< $srcdir/$filename") || die "Failed to open $filename";
 112         }
 113
 114         my $comment = undef;
 115         my $incomment = 0;
 116         while (my $line = <FH>) {
 117                 if ($line =~ /^FN_/) {
 118                         handle_loadparm($file, $line);
 119                 }
 120                 next;
 121         }
 122
 123         close(FH);
 124 }
 125
 126
 127 print_header(\&public);
 128
 129 process_file(\&public, $_) foreach (@ARGV);
 130 print_footer(\&public);
 131
 132 if (not defined($file)) {
 133         print STDOUT $$public_data;
 134 }
 135
 136 mkpath(dirname($file), 0, 0755);
 137 open(PUBLIC, ">$file") or die("Can't open `$file': $!");
 138 print PUBLIC "$$public_data";
 139 close(PUBLIC);