script/mks3param_proto.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         $$public_data .= $d;
  31 }
  32
  33 sub usage()
  34 {
  35         print "Usage: mks3param.pl [options] [c files]\n";
  36         print "OPTIONS:\n";
  37         print "  --srcdir=path          Read files relative to this directory\n";
  38         print "  --builddir=path        Write file relative to this directory\n";
  39         print "  --help                 Print this help message\n\n";
  40         exit 0;
  41 }
  42
  43 GetOptions(
  44         'file=s' => sub { my ($f,$v) = @_; $file = $v; },
  45         'srcdir=s' => sub { my ($f,$v) = @_; $srcdir = $v; },
  46         'builddir=s' => sub { my ($f,$v) = @_; $builddir = $v; },
  47         'help' => \&usage
  48 ) or exit(1);
  49
  50 sub normalize_define($$)
  51 {
  52         my ($define, $file) = @_;
  53
  54         if (not defined($define) and defined($file)) {
  55                 $define = "__" . uc($file) . "__";
  56                 $define =~ tr{./}{__};
  57                 $define =~ tr{\-}{_};
  58         } elsif (not defined($define)) {
  59                 $define = '_S3_PARAM_PROTO_H_';
  60         }
  61
  62         return $define;
  63 }
  64
  65 $public_define = normalize_define($public_define, $file);
  66
  67 sub file_load($)
  68 {
  69     my($filename) = @_;
  70     local(*INPUTFILE);
  71     open(INPUTFILE, $filename) or return undef;
  72     my($saved_delim) = $/;
  73     undef $/;
  74     my($data) = <INPUTFILE>;
  75     close(INPUTFILE);
  76     $/ = $saved_delim;
  77     return $data;
  78 }
  79
  80 sub print_header($$)
  81 {
  82         my ($file, $header_name) = @_;
  83         $file->("#ifndef $header_name\n");
  84         $file->("#define $header_name\n\n");
  85         $file->("/* This file was automatically generated by mks3param_proto.pl. DO NOT EDIT */\n\n");
  86 }
  87
  88 sub print_footer($$)
  89 {
  90         my ($file, $header_name) = @_;
  91         $file->("\n#endif /* $header_name */\n\n");
  92 }
  93
  94 sub handle_loadparm($$)
  95 {
  96         my ($file,$line) = @_;
  97
  98         my $scope;
  99         my $type;
 100         my $name;
 101         my $var;
 102         my $param;
 103
 104         if ($line =~ /^FN_(GLOBAL|LOCAL)_(CONST_STRING|STRING|BOOL|bool|CHAR|INTEGER|LIST)\((\w+),(.*)\)/o) {
 105                 $scope = $1;
 106                 $type = $2;
 107                 $name = $3;
 108                 $var = $4;
 109                 $param = "int";
 110         } elsif ($line =~ /^FN_(GLOBAL|LOCAL)_PARM_(CONST_STRING|STRING|BOOL|bool|CHAR|INTEGER|LIST)\((\w+),(.*)\)/o) {
 111                 $scope = $1;
 112                 $type = $2;
 113                 $name = $3;
 114                 $var = $4;
 115                 $param = "const struct share_params *p";
 116         } else {
 117                 return;
 118         }
 119
 120         my %tmap = (
 121                 "BOOL" => "bool ",
 122                 "CONST_STRING" => "const char *",
 123                 "STRING" => "char *",
 124                 "INTEGER" => "int ",
 125                 "CHAR" => "char ",
 126                 "LIST" => "const char **",
 127         );
 128
 129         my %smap = (
 130                 "GLOBAL" => "void",
 131                 "LOCAL" => "$param"
 132                 );
 133
 134         if (($type eq "STRING") and ($scope eq "GLOBAL")) {
 135             $file->("$tmap{$type}lp_$name(TALLOC_CTX *ctx);\n");
 136         } elsif (($type eq "STRING") and ($scope eq "LOCAL")) {
 137             $file->("$tmap{$type}lp_$name(TALLOC_CTX *ctx, $smap{$scope});\n");
 138         } else {
 139             $file->("$tmap{$type}lp_$name($smap{$scope});\n");
 140         }
 141 }
 142
 143 sub process_file($$)
 144 {
 145         my ($file, $filename) = @_;
 146
 147         $filename =~ s/\.o$/\.c/g;
 148
 149         if ($filename =~ /^\//) {
 150                 open(FH, "<$filename") or die("Failed to open $filename");
 151         } elsif (!open(FH, "< $builddir/$filename")) {
 152             open(FH, "< $srcdir/$filename") || die "Failed to open $filename";
 153         }
 154
 155         my $comment = undef;
 156         my $incomment = 0;
 157         while (my $line = <FH>) {
 158                 if ($line =~ /^\/\*\*/) {
 159                         $comment = "";
 160                         $incomment = 1;
 161                 }
 162
 163                 if ($incomment) {
 164                         $comment .= $line;
 165                         if ($line =~ /\*\//) {
 166                                 $incomment = 0;
 167                         }
 168                 }
 169
 170                 # these are ordered for maximum speed
 171                 next if ($line =~ /^\s/);
 172
 173                 next unless ($line =~ /\(/);
 174
 175                 next if ($line =~ /^\/|[;]/);
 176
 177                 if ($line =~ /^FN_/) {
 178                         handle_loadparm($file, $line);
 179                 }
 180                 next;
 181         }
 182
 183         close(FH);
 184 }
 185
 186
 187 print_header(\&public, $public_define);
 188
 189 process_file(\&public, $_) foreach (@ARGV);
 190 print_footer(\&public, $public_define);
 191
 192 if (not defined($file)) {
 193         print STDOUT $$public_data;
 194 }
 195
 196 mkpath(dirname($file), 0, 0755);
 197 open(PUBLIC, ">$file") or die("Can't open `$file': $!");
 198 print PUBLIC "$$public_data";
 199 close(PUBLIC);