Security/libsecurity_cdsa_utilities/lib/generator.pl

   1 #!/usr/bin/perl
   2 #
   3 # generator.pl - derive various and sundry C++ code from the CDSA header files
   4 #
   5 # Usage:
   6 #       perl generator.pl input-directory output-directory
   7 #
   8 # Perry The Cynic, Fall 1999.
   9 #
  10 $ERR_H="cssmerr.h";
  11 $APPLE_ERR_H="cssmapple.h";
  12
  13 $SOURCEDIR=$ARGV[0];                                            # directory with cdsa headers
  14 $TARGETDIR=$ARGV[1];                                            # where to put the output file
  15 @INPUTFILES=@ARGV[2 .. 9999];                           # list of input files
  16
  17 $TABLES="$TARGETDIR/errorcodes.gen";            # error name tables
  18
  19 $tabs = "\t\t\t";       # argument indentation (noncritical)
  20 $warning = "This file was automatically generated. Do not edit on penalty of futility!";
  21
  22
  23 #
  24 # Parse CSSM error header and build table of all named codes
  25 #
  26 open(ERR, "$SOURCEDIR/$ERR_H") or die "Cannot open $ERR_H: $^E";
  27 open(APPLE_ERR, "$SOURCEDIR/$APPLE_ERR_H") or die "Cannot open $APPLE_ERR_H: $^E";
  28 $/=undef;       # big gulp mode
  29 $errors = <ERR> . <APPLE_ERR>;
  30 close(ERR); close(APPLE_ERR);
  31
  32 @fullErrors = $errors =~ /^\s+CSSMERR_([A-Z_]+)/gm;
  33 @convertibles = $errors =~ /^\s+CSSM_ERRCODE_([A-Z_]+)\s*=\s*([0-9xXA-Fa-f]+)/gm;
  34
  35 while ($name = shift @convertibles) {
  36   $value = shift @convertibles or die;
  37   $convErrors[hex $value] = $name;
  38 };
  39
  40
  41 #
  42 # Read Keychain-level headers for more error codes (errSecBlahBlah)
  43 #
  44 open(ERR, "cat " . join(" ", @INPUTFILES) . "|") or die "Cannot open error header files";
  45 $/=undef;       # still gulping
  46 $_ = <ERR>;
  47 @kcerrors = /err((?:Sec|Authorization)\w+)\s*=\s*-?\d+/gm;
  48 close(ERR);
  49
  50
  51 #
  52 # Now we will generate the error name tables.
  53 #
  54 open(OUT, ">$TABLES") or die "Cannot write $TABLES: $^E";
  55 select OUT;
  56
  57 print <<HDR;
  58 //
  59 // CSSM error code tables.
  60 // $warning
  61 //
  62 static const Mapping errorList[] = {
  63 HDR
  64 foreach $name (@fullErrors) {
  65   print "  { CSSMERR_$name, \"$name\" },\n";
  66 };
  67 foreach $err (@kcerrors) {
  68   print "  { err$err, \"$err\" },\n";
  69 };
  70 print <<MID;
  71 };
  72
  73 static const char * const convErrorList [] = {
  74 MID
  75 for ($n = 0; $n <= $#convErrors; $n++) {
  76   if ($name = $convErrors[$n]) {
  77     print "  \"$name\",\n";
  78   } else {
  79     print "  NULL,\n";
  80   };
  81 };
  82 print "};\n";
  83
  84 close(OUT);
  85 select(STDOUT);
  86
  87 $nFull = $#fullErrors + 1;
  88 $nConv = $#convertibles + 1;
  89 print "$nFull errors available to error translation functions.\n";