util/mkstack.pl

   1 #!/usr/local/bin/perl -w
   2 #
   3 # This is a utility that searches out "DECLARE_STACK_OF()"
   4 # declarations in header files, and updates/creates/replaces
   5 # the corresponding macro declarations that follow it. The
   6 # reason is that with "DEBUG_SAFESTACK" defined, each type
   7 # will generate 19 functions, all type-safe variants of the
   8 # base "sk_***" functions for the general STACK type. Without
   9 # DEBUG_SAFESTACK defined, we need to macro define all the
  10 # "type'd sk_##type##_***" functions as mapping directly to
  11 # the standard sk_*** equivalents. As it's not generally
  12 # possible to have macros that generate macros, we need to
  13 # control this from the "outside", here in this script.
  14 #
  15 # Geoff Thorpe, June, 2000 (with massive Perl-hacking
  16 #                           help from Steve Robb)
  17
  18 my $type_thing;
  19 my $recurse = 0;
  20 my @files = @ARGV;
  21
  22 while (@ARGV) {
  23         my $arg = $ARGV[0];
  24         if($arg eq "-recurse") {
  25                 $recurse = 1;
  26                 shift @ARGV;
  27         } else {
  28                 last;
  29         }
  30 }
  31
  32 if($recurse) {
  33         @source = (<crypto/*.[ch]>, <crypto/*/*.[ch]>, <rsaref/*.[ch]>, <ssl/*.[ch]>);
  34 } else {
  35         @source = @ARGV;
  36 }
  37
  38 foreach $file (@source) {
  39         # After "Configure" has been run, we need to make sure we don't
  40         # overwrite symbollic links with new header files!
  41         next if -l $file;
  42
  43         # Open the .c/.h file for reading
  44         open(IN, "< $file") || die "Can't open $file for reading: $!";
  45         open(OUT, "> $file.tmp") || die "Can't open $file.tmp for writing: $!";
  46
  47         select(OUT);
  48         process_the_file();
  49
  50         close(OUT);
  51         close(IN);
  52
  53         unlink($file);
  54         rename("$file.tmp", $file);
  55 }
  56
  57 sub process_the_file {
  58
  59         my $inside_block = 0;
  60         my $output_defines = 0;
  61
  62         while(<IN>) {
  63                 if (/^DECLARE_STACK_OF\(([^)]+)\)/) {
  64                         $type_thing = $1;
  65                         $output_defines = 1;
  66                 }
  67                 if (m|^/\* This block of defines is updated by a perl script, please do not touch! \*/|) {
  68                         $inside_block = 1;
  69                 }
  70                 if (m|^/\* End of perl script block, you may now edit :-\) \*/|) {
  71                         $inside_block = 0;
  72                 } elsif ($inside_block == 0) {
  73                         print;
  74                 }
  75                 if($output_defines == 1) {
  76                         print <<EOF;
  77 /* This block of defines is updated by a perl script, please do not touch! */
  78 #ifndef DEBUG_SAFESTACK
  79         #define sk_${type_thing}_new(a) sk_new((int (*) \\
  80                 (const char * const *, const char * const *))(a))
  81         #define sk_${type_thing}_new_null() sk_new_null()
  82         #define sk_${type_thing}_free(a) sk_free(a)
  83         #define sk_${type_thing}_num(a) sk_num(a)
  84         #define sk_${type_thing}_value(a,b) ((${type_thing} *) \\
  85                 sk_value((a),(b)))
  86         #define sk_${type_thing}_set(a,b,c) ((${type_thing} *) \\
  87                 sk_set((a),(b),(char *)(c)))
  88         #define sk_${type_thing}_zero(a) sk_zero(a)
  89         #define sk_${type_thing}_push(a,b) sk_push((a),(char *)(b))
  90         #define sk_${type_thing}_unshift(a,b) sk_unshift((a),(b))
  91         #define sk_${type_thing}_find(a,b) sk_find((a), (char *)(b))
  92         #define sk_${type_thing}_delete(a,b) ((${type_thing} *) \\
  93                 sk_delete((a),(b)))
  94         #define sk_${type_thing}_delete_ptr(a,b) ((${type_thing} *) \\
  95                 sk_delete_ptr((a),(char *)(b)))
  96         #define sk_${type_thing}_insert(a,b,c) sk_insert((a),(char *)(b),(c))
  97         #define sk_${type_thing}_set_cmp_func(a,b) ((int (*) \\
  98                 (const ${type_thing} * const *,const ${type_thing} * const *)) \\
  99                 sk_set_cmp_func((a),(int (*) \\
 100                 (const char * const *, const char * const *))(b)))
 101         #define sk_${type_thing}_dup(a) sk_dup(a)
 102         #define sk_${type_thing}_pop_free(a,b) sk_pop_free((a),(void (*)(void *))(b))
 103         #define sk_${type_thing}_shift(a) ((${type_thing} *)sk_shift(a))
 104         #define sk_${type_thing}_pop(a) ((${type_thing} *)sk_pop(a))
 105         #define sk_${type_thing}_sort(a) sk_sort(a)
 106 #endif /* !DEBUG_SAFESTACK */
 107 /* End of perl script block, you may now edit :-) */
 108 EOF
 109                         $output_defines = 0;
 110                 }
 111         }
 112 }