the final byte of a pkcs7 padded plaintext can never be 0
[openssl.git] / util / mkdef.pl
1 #!/usr/local/bin/perl -w
2 #
3 # generate a .def file
4 #
5 # It does this by parsing the header files and looking for the
6 # prototyped functions: it then prunes the output.
7 #
8 # Intermediary files are created, call libeay.num and ssleay.num,...
9 # Previously, they had the following format:
10 #
11 #       routine-name    nnnn
12 #
13 # But that isn't enough for a number of reasons, the first on being that
14 # this format is (needlessly) very Win32-centric, and even then...
15 # One of the biggest problems is that there's no information about what
16 # routines should actually be used, which varies with what crypto algorithms
17 # are disabled.  Also, some operating systems (for example VMS with VAX C)
18 # need to keep track of the global variables as well as the functions.
19 #
20 # So, a remake of this script is done so as to include information on the
21 # kind of symbol it is (function or variable) and what algorithms they're
22 # part of.  This will allow easy translating to .def files or the corresponding
23 # file in other operating systems (a .opt file for VMS, possibly with a .mar
24 # file).
25 #
26 # The format now becomes:
27 #
28 #       routine-name    nnnn    info
29 #
30 # and the "info" part is actually a colon-separated string of fields with
31 # the following meaning:
32 #
33 #       existence:platform:kind:algorithms
34 #
35 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
36 #   found somewhere in the source, 
37 # - "platforms" is empty if it exists on all platforms, otherwise it contains
38 #   comma-separated list of the platform, just as they are if the symbol exists
39 #   for those platforms, or prepended with a "!" if not.  This helps resolve
40 #   symbol name variants for platforms where the names are too long for the
41 #   compiler or linker, or if the systems is case insensitive and there is a
42 #   clash, or the symbol is implemented differently (see
43 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
44 #   in the file crypto/symhacks.h.
45 #   The semantics for the platforms is that every item is checked against the
46 #   environment.  For the negative items ("!FOO"), if any of them is false
47 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
48 #   used.  For the positive itms, if all of them are false in the environment,
49 #   the corresponding symbol can't be used.  Any combination of positive and
50 #   negative items are possible, and of course leave room for some redundancy.
51 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
52 # - "algorithms" is a comma-separated list of algorithm names.  This helps
53 #   exclude symbols that are part of an algorithm that some user wants to
54 #   exclude.
55 #
56
57 my $debug=0;
58
59 my $crypto_num= "util/libeay.num";
60 my $ssl_num=    "util/ssleay.num";
61 my $libname;
62
63 my $do_update = 0;
64 my $do_rewrite = 1;
65 my $do_crypto = 0;
66 my $do_ssl = 0;
67 my $do_ctest = 0;
68 my $do_ctestall = 0;
69 my $do_checkexist = 0;
70
71 my $VMSVAX=0;
72 my $VMSAlpha=0;
73 my $VMS=0;
74 my $W32=0;
75 my $W16=0;
76 my $NT=0;
77 my $OS2=0;
78 # Set this to make typesafe STACK definitions appear in DEF
79 my $safe_stack_def = 0;
80
81 my @known_platforms = ( "__FreeBSD__", "PERL5", "NeXT",
82                         "EXPORT_VAR_AS_FUNCTION" );
83 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
84 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
85                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
86                          "SHA256", "SHA512", "RIPEMD",
87                          "MDC2", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA", "HMAC", "AES",
88                          # Envelope "algorithms"
89                          "EVP", "X509", "ASN1_TYPEDEFS",
90                          # Helper "algorithms"
91                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
92                          "LOCKING",
93                          # External "algorithms"
94                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
95                          # Engines
96                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
97                          # Deprecated functions
98                          "DEPRECATED" );
99
100 my $options="";
101 open(IN,"<Makefile") || die "unable to open Makefile!\n";
102 while(<IN>) {
103     $options=$1 if (/^OPTIONS=(.*)$/);
104 }
105 close(IN);
106
107 # The following ciphers may be excluded (by Configure). This means functions
108 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
109 # in directory xxx is ignored.
110 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
111 my $no_cast;
112 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
113 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
114 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
115 my $no_fp_api; my $no_static_engine; my $no_gmp; my $no_deprecated;
116
117
118 foreach (@ARGV, split(/ /, $options))
119         {
120         $debug=1 if $_ eq "debug";
121         $W32=1 if $_ eq "32";
122         $W16=1 if $_ eq "16";
123         if($_ eq "NT") {
124                 $W32 = 1;
125                 $NT = 1;
126         }
127         if ($_ eq "VMS-VAX") {
128                 $VMS=1;
129                 $VMSVAX=1;
130         }
131         if ($_ eq "VMS-Alpha") {
132                 $VMS=1;
133                 $VMSAlpha=1;
134         }
135         $VMS=1 if $_ eq "VMS";
136         $OS2=1 if $_ eq "OS2";
137
138         $do_ssl=1 if $_ eq "ssleay";
139         if ($_ eq "ssl") {
140                 $do_ssl=1; 
141                 $libname=$_
142         }
143         $do_crypto=1 if $_ eq "libeay";
144         if ($_ eq "crypto") {
145                 $do_crypto=1;
146                 $libname=$_;
147         }
148         $do_update=1 if $_ eq "update";
149         $do_rewrite=1 if $_ eq "rewrite";
150         $do_ctest=1 if $_ eq "ctest";
151         $do_ctestall=1 if $_ eq "ctestall";
152         $do_checkexist=1 if $_ eq "exist";
153         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
154
155         if    (/^no-rc2$/)      { $no_rc2=1; }
156         elsif (/^no-rc4$/)      { $no_rc4=1; }
157         elsif (/^no-rc5$/)      { $no_rc5=1; }
158         elsif (/^no-idea$/)     { $no_idea=1; }
159         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
160         elsif (/^no-bf$/)       { $no_bf=1; }
161         elsif (/^no-cast$/)     { $no_cast=1; }
162         elsif (/^no-md2$/)      { $no_md2=1; }
163         elsif (/^no-md4$/)      { $no_md4=1; }
164         elsif (/^no-md5$/)      { $no_md5=1; }
165         elsif (/^no-sha$/)      { $no_sha=1; }
166         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
167         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
168         elsif (/^no-rsa$/)      { $no_rsa=1; }
169         elsif (/^no-dsa$/)      { $no_dsa=1; }
170         elsif (/^no-dh$/)       { $no_dh=1; }
171         elsif (/^no-ec$/)       { $no_ec=1; }
172         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
173         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
174         elsif (/^no-hmac$/)     { $no_hmac=1; }
175         elsif (/^no-aes$/)      { $no_aes=1; }
176         elsif (/^no-evp$/)      { $no_evp=1; }
177         elsif (/^no-lhash$/)    { $no_lhash=1; }
178         elsif (/^no-stack$/)    { $no_stack=1; }
179         elsif (/^no-err$/)      { $no_err=1; }
180         elsif (/^no-buffer$/)   { $no_buffer=1; }
181         elsif (/^no-bio$/)      { $no_bio=1; }
182         #elsif (/^no-locking$/) { $no_locking=1; }
183         elsif (/^no-comp$/)     { $no_comp=1; }
184         elsif (/^no-dso$/)      { $no_dso=1; }
185         elsif (/^no-krb5$/)     { $no_krb5=1; }
186         elsif (/^no-engine$/)   { $no_engine=1; }
187         elsif (/^no-hw$/)       { $no_hw=1; }
188         elsif (/^no-gmp$/)      { $no_gmp=1; }
189         }
190
191
192 if (!$libname) { 
193         if ($do_ssl) {
194                 $libname="SSLEAY";
195         }
196         if ($do_crypto) {
197                 $libname="LIBEAY";
198         }
199 }
200
201 # If no platform is given, assume WIN32
202 if ($W32 + $W16 + $VMS + $OS2 == 0) {
203         $W32 = 1;
204 }
205
206 # Add extra knowledge
207 if ($W16) {
208         $no_fp_api=1;
209 }
210
211 if (!$do_ssl && !$do_crypto)
212         {
213         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
214         exit(1);
215         }
216
217 %ssl_list=&load_numbers($ssl_num);
218 $max_ssl = $max_num;
219 %crypto_list=&load_numbers($crypto_num);
220 $max_crypto = $max_num;
221
222 my $ssl="ssl/ssl.h";
223 $ssl.=" ssl/kssl.h";
224
225 my $crypto ="crypto/crypto.h";
226 $crypto.=" crypto/o_dir.h";
227 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
228 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
229 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
230 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
231 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
232 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
233 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
234 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
235 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
236 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
237 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
238 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
239 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
240 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
241
242 $crypto.=" crypto/bn/bn.h";
243 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
244 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
245 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
246 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
247 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
248 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
249 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
250
251 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
252 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
253 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
254 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
255 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
256 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
257 $crypto.=" crypto/conf/conf.h";
258 $crypto.=" crypto/txt_db/txt_db.h";
259
260 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
261 $crypto.=" crypto/objects/objects.h";
262 $crypto.=" crypto/pem/pem.h";
263 #$crypto.=" crypto/meth/meth.h";
264 $crypto.=" crypto/asn1/asn1.h";
265 $crypto.=" crypto/asn1/asn1t.h";
266 $crypto.=" crypto/asn1/asn1_mac.h";
267 $crypto.=" crypto/err/err.h" ; # unless $no_err;
268 $crypto.=" crypto/pkcs7/pkcs7.h";
269 $crypto.=" crypto/pkcs12/pkcs12.h";
270 $crypto.=" crypto/x509/x509.h";
271 $crypto.=" crypto/x509/x509_vfy.h";
272 $crypto.=" crypto/x509v3/x509v3.h";
273 $crypto.=" crypto/rand/rand.h";
274 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
275 $crypto.=" crypto/ocsp/ocsp.h";
276 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
277 $crypto.=" crypto/krb5/krb5_asn.h";
278 $crypto.=" crypto/tmdiff.h";
279 $crypto.=" crypto/store/store.h";
280 $crypto.=" crypto/pqueue/pqueue.h";
281
282 my $symhacks="crypto/symhacks.h";
283
284 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
285 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
286
287 if ($do_update) {
288
289 if ($do_ssl == 1) {
290
291         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
292         if ($do_rewrite == 1) {
293                 open(OUT, ">$ssl_num");
294                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
295         } else {
296                 open(OUT, ">>$ssl_num");
297         }
298         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
299         close OUT;
300 }
301
302 if($do_crypto == 1) {
303
304         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
305         if ($do_rewrite == 1) {
306                 open(OUT, ">$crypto_num");
307                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
308         } else {
309                 open(OUT, ">>$crypto_num");
310         }
311         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
312         close OUT;
313
314
315 } elsif ($do_checkexist) {
316         &check_existing(*ssl_list, @ssl_symbols)
317                 if $do_ssl == 1;
318         &check_existing(*crypto_list, @crypto_symbols)
319                 if $do_crypto == 1;
320 } elsif ($do_ctest || $do_ctestall) {
321
322         print <<"EOF";
323
324 /* Test file to check all DEF file symbols are present by trying
325  * to link to all of them. This is *not* intended to be run!
326  */
327
328 int main()
329 {
330 EOF
331         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
332                 if $do_ssl == 1;
333
334         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
335                 if $do_crypto == 1;
336
337         print "}\n";
338
339 } else {
340
341         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
342                 if $do_ssl == 1;
343
344         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
345                 if $do_crypto == 1;
346
347 }
348
349
350 sub do_defs
351 {
352         my($name,$files,$symhacksfile)=@_;
353         my $file;
354         my @ret;
355         my %syms;
356         my %platform;           # For anything undefined, we assume ""
357         my %kind;               # For anything undefined, we assume "FUNCTION"
358         my %algorithm;          # For anything undefined, we assume ""
359         my %variant;
360         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
361                                 # is the same name as the original.
362         my $cpp;
363         my %unknown_algorithms = ();
364
365         foreach $file (split(/\s+/,$symhacksfile." ".$files))
366                 {
367                 print STDERR "DEBUG: starting on $file:\n" if $debug;
368                 open(IN,"<$file") || die "unable to open $file:$!\n";
369                 my $line = "", my $def= "";
370                 my %tag = (
371                         (map { $_ => 0 } @known_platforms),
372                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
373                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
374                         NOPROTO         => 0,
375                         PERL5           => 0,
376                         _WINDLL         => 0,
377                         CONST_STRICT    => 0,
378                         TRUE            => 1,
379                 );
380                 my $symhacking = $file eq $symhacksfile;
381                 my @current_platforms = ();
382                 my @current_algorithms = ();
383
384                 # params: symbol, alias, platforms, kind
385                 # The reason to put this subroutine in a variable is that
386                 # it will otherwise create it's own, unshared, version of
387                 # %tag and %variant...
388                 my $make_variant = sub
389                 {
390                         my ($s, $a, $p, $k) = @_;
391                         my ($a1, $a2);
392
393                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
394                         if (defined($p))
395                         {
396                                 $a1 = join(",",$p,
397                                            grep(!/^$/,
398                                                 map { $tag{$_} == 1 ? $_ : "" }
399                                                 @known_platforms));
400                         }
401                         else
402                         {
403                                 $a1 = join(",",
404                                            grep(!/^$/,
405                                                 map { $tag{$_} == 1 ? $_ : "" }
406                                                 @known_platforms));
407                         }
408                         $a2 = join(",",
409                                    grep(!/^$/,
410                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
411                                         @known_ossl_platforms));
412                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
413                         if ($a1 eq "") { $a1 = $a2; }
414                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
415                         if ($a eq $s)
416                         {
417                                 if (!defined($variant_cnt{$s}))
418                                 {
419                                         $variant_cnt{$s} = 0;
420                                 }
421                                 $variant_cnt{$s}++;
422                                 $a .= "{$variant_cnt{$s}}";
423                         }
424                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
425                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
426                         if (!grep(/^$togrep$/,
427                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
428                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
429                                 $variant{$s} .= $toadd;
430                         }
431                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
432                 };
433
434                 print STDERR "DEBUG: parsing ----------\n" if $debug;
435                 while(<IN>) {
436                         if (/\/\* Error codes for the \w+ functions\. \*\//)
437                                 {
438                                 undef @tag;
439                                 last;
440                                 }
441                         if ($line ne '') {
442                                 $_ = $line . $_;
443                                 $line = '';
444                         }
445
446                         if (/\\$/) {
447                                 chomp; # remove eol
448                                 chop; # remove ending backslash
449                                 $line = $_;
450                                 next;
451                         }
452
453                         $cpp = 1 if /^\#.*ifdef.*cplusplus/;
454                         if ($cpp) {
455                                 $cpp = 0 if /^\#.*endif/;
456                                 next;
457                         }
458
459                         s/\/\*.*?\*\///gs;                   # ignore comments
460                         if (/\/\*/) {                        # if we have part
461                                 $line = $_;                  # of a comment,
462                                 next;                        # continue reading
463                         }
464                         s/{[^{}]*}//gs;                      # ignore {} blocks
465                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
466                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
467                         if (/^\#\s*ifndef\s+(.*)/) {
468                                 push(@tag,"-");
469                                 push(@tag,$1);
470                                 $tag{$1}=-1;
471                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
472                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
473                                 push(@tag,"-");
474                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
475                                         my $tmp_1 = $1;
476                                         my $tmp_;
477                                         foreach $tmp_ (split '\&\&',$tmp_1) {
478                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
479                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
480                                                 push(@tag,$1);
481                                                 $tag{$1}=-1;
482                                         }
483                                 } else {
484                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
485                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
486                                         push(@tag,$1);
487                                         $tag{$1}=-1;
488                                 }
489                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
490                                 push(@tag,"-");
491                                 push(@tag,$1);
492                                 $tag{$1}=1;
493                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
494                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
495                                 push(@tag,"-");
496                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
497                                         my $tmp_1 = $1;
498                                         my $tmp_;
499                                         foreach $tmp_ (split '\|\|',$tmp_1) {
500                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
501                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
502                                                 push(@tag,$1);
503                                                 $tag{$1}=1;
504                                         }
505                                 } else {
506                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
507                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
508                                         push(@tag,$1);
509                                         $tag{$1}=1;
510                                 }
511                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
512                                 my $tag_i = $#tag;
513                                 while($tag[$tag_i] ne "-") {
514                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
515                                                 $tag{$tag[$tag_i]}=2;
516                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
517                                         }
518                                         $tag_i--;
519                                 }
520                         } elsif (/^\#\s*endif/) {
521                                 my $tag_i = $#tag;
522                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
523                                         my $t=$tag[$tag_i];
524                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
525                                         if ($tag{$t}==2) {
526                                                 $tag{$t}=-1;
527                                         } else {
528                                                 $tag{$t}=0;
529                                         }
530                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
531                                         pop(@tag);
532                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
533                                                 $t=$1;
534                                         } else {
535                                                 $t="";
536                                         }
537                                         if ($t ne ""
538                                             && !grep(/^$t$/, @known_algorithms)) {
539                                                 $unknown_algorithms{$t} = 1;
540                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
541                                         }
542                                         $tag_i--;
543                                 }
544                                 pop(@tag);
545                         } elsif (/^\#\s*else/) {
546                                 my $tag_i = $#tag;
547                                 while($tag[$tag_i] ne "-") {
548                                         my $t=$tag[$tag_i];
549                                         $tag{$t}= -$tag{$t};
550                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
551                                         $tag_i--;
552                                 }
553                         } elsif (/^\#\s*if\s+1/) {
554                                 push(@tag,"-");
555                                 # Dummy tag
556                                 push(@tag,"TRUE");
557                                 $tag{"TRUE"}=1;
558                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
559                         } elsif (/^\#\s*if\s+0/) {
560                                 push(@tag,"-");
561                                 # Dummy tag
562                                 push(@tag,"TRUE");
563                                 $tag{"TRUE"}=-1;
564                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
565                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
566                                  && $symhacking && $tag{'TRUE'} != -1) {
567                                 # This is for aliasing.  When we find an alias,
568                                 # we have to invert
569                                 &$make_variant($1,$2);
570                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
571                         }
572                         if (/^\#/) {
573                                 @current_platforms =
574                                     grep(!/^$/,
575                                          map { $tag{$_} == 1 ? $_ :
576                                                    $tag{$_} == -1 ? "!".$_  : "" }
577                                          @known_platforms);
578                                 push @current_platforms
579                                     , grep(!/^$/,
580                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
581                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
582                                            @known_ossl_platforms);
583                                 @current_algorithms =
584                                     grep(!/^$/,
585                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
586                                          @known_algorithms);
587                                 $def .=
588                                     "#INFO:"
589                                         .join(',',@current_platforms).":"
590                                             .join(',',@current_algorithms).";";
591                                 next;
592                         }
593                         if ($tag{'TRUE'} != -1) {
594                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
595                                         next;
596                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
597                                         $def .= "int d2i_$3(void);";
598                                         $def .= "int i2d_$3(void);";
599                                         # Variant for platforms that do not
600                                         # have to access globale variables
601                                         # in shared libraries through functions
602                                         $def .=
603                                             "#INFO:"
604                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
605                                                     .join(',',@current_algorithms).";";
606                                         $def .= "OPENSSL_EXTERN int $2_it;";
607                                         $def .=
608                                             "#INFO:"
609                                                 .join(',',@current_platforms).":"
610                                                     .join(',',@current_algorithms).";";
611                                         # Variant for platforms that have to
612                                         # access globale variables in shared
613                                         # libraries through functions
614                                         &$make_variant("$2_it","$2_it",
615                                                       "EXPORT_VAR_AS_FUNCTION",
616                                                       "FUNCTION");
617                                         next;
618                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
619                                         $def .= "int d2i_$3(void);";
620                                         $def .= "int i2d_$3(void);";
621                                         $def .= "int $3_free(void);";
622                                         $def .= "int $3_new(void);";
623                                         # Variant for platforms that do not
624                                         # have to access globale variables
625                                         # in shared libraries through functions
626                                         $def .=
627                                             "#INFO:"
628                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
629                                                     .join(',',@current_algorithms).";";
630                                         $def .= "OPENSSL_EXTERN int $2_it;";
631                                         $def .=
632                                             "#INFO:"
633                                                 .join(',',@current_platforms).":"
634                                                     .join(',',@current_algorithms).";";
635                                         # Variant for platforms that have to
636                                         # access globale variables in shared
637                                         # libraries through functions
638                                         &$make_variant("$2_it","$2_it",
639                                                       "EXPORT_VAR_AS_FUNCTION",
640                                                       "FUNCTION");
641                                         next;
642                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
643                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
644                                         $def .= "int d2i_$1(void);";
645                                         $def .= "int i2d_$1(void);";
646                                         $def .= "int $1_free(void);";
647                                         $def .= "int $1_new(void);";
648                                         # Variant for platforms that do not
649                                         # have to access globale variables
650                                         # in shared libraries through functions
651                                         $def .=
652                                             "#INFO:"
653                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
654                                                     .join(',',@current_algorithms).";";
655                                         $def .= "OPENSSL_EXTERN int $1_it;";
656                                         $def .=
657                                             "#INFO:"
658                                                 .join(',',@current_platforms).":"
659                                                     .join(',',@current_algorithms).";";
660                                         # Variant for platforms that have to
661                                         # access globale variables in shared
662                                         # libraries through functions
663                                         &$make_variant("$1_it","$1_it",
664                                                       "EXPORT_VAR_AS_FUNCTION",
665                                                       "FUNCTION");
666                                         next;
667                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
668                                         $def .= "int d2i_$2(void);";
669                                         $def .= "int i2d_$2(void);";
670                                         # Variant for platforms that do not
671                                         # have to access globale variables
672                                         # in shared libraries through functions
673                                         $def .=
674                                             "#INFO:"
675                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
676                                                     .join(',',@current_algorithms).";";
677                                         $def .= "OPENSSL_EXTERN int $2_it;";
678                                         $def .=
679                                             "#INFO:"
680                                                 .join(',',@current_platforms).":"
681                                                     .join(',',@current_algorithms).";";
682                                         # Variant for platforms that have to
683                                         # access globale variables in shared
684                                         # libraries through functions
685                                         &$make_variant("$2_it","$2_it",
686                                                       "EXPORT_VAR_AS_FUNCTION",
687                                                       "FUNCTION");
688                                         next;
689                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
690                                         $def .= "int $1_free(void);";
691                                         $def .= "int $1_new(void);";
692                                         next;
693                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
694                                         $def .= "int d2i_$2(void);";
695                                         $def .= "int i2d_$2(void);";
696                                         $def .= "int $2_free(void);";
697                                         $def .= "int $2_new(void);";
698                                         # Variant for platforms that do not
699                                         # have to access globale variables
700                                         # in shared libraries through functions
701                                         $def .=
702                                             "#INFO:"
703                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
704                                                     .join(',',@current_algorithms).";";
705                                         $def .= "OPENSSL_EXTERN int $2_it;";
706                                         $def .=
707                                             "#INFO:"
708                                                 .join(',',@current_platforms).":"
709                                                     .join(',',@current_algorithms).";";
710                                         # Variant for platforms that have to
711                                         # access globale variables in shared
712                                         # libraries through functions
713                                         &$make_variant("$2_it","$2_it",
714                                                       "EXPORT_VAR_AS_FUNCTION",
715                                                       "FUNCTION");
716                                         next;
717                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
718                                         # Variant for platforms that do not
719                                         # have to access globale variables
720                                         # in shared libraries through functions
721                                         $def .=
722                                             "#INFO:"
723                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
724                                                     .join(',',@current_algorithms).";";
725                                         $def .= "OPENSSL_EXTERN int $1_it;";
726                                         $def .=
727                                             "#INFO:"
728                                                 .join(',',@current_platforms).":"
729                                                     .join(',',@current_algorithms).";";
730                                         # Variant for platforms that have to
731                                         # access globale variables in shared
732                                         # libraries through functions
733                                         &$make_variant("$1_it","$1_it",
734                                                       "EXPORT_VAR_AS_FUNCTION",
735                                                       "FUNCTION");
736                                         next;
737                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
738                                         $def .= "int i2d_$1_NDEF(void);";
739                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
740                                         next;
741                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
742                                         next;
743                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
744                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ) {
745                                         # Things not in Win16
746                                         $def .=
747                                             "#INFO:"
748                                                 .join(',',"!WIN16",@current_platforms).":"
749                                                     .join(',',@current_algorithms).";";
750                                         $def .= "int PEM_read_$1(void);";
751                                         $def .= "int PEM_write_$1(void);";
752                                         $def .=
753                                             "#INFO:"
754                                                 .join(',',@current_platforms).":"
755                                                     .join(',',@current_algorithms).";";
756                                         # Things that are everywhere
757                                         $def .= "int PEM_read_bio_$1(void);";
758                                         $def .= "int PEM_write_bio_$1(void);";
759                                         next;
760                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
761                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
762                                         # Things not in Win16
763                                         $def .=
764                                             "#INFO:"
765                                                 .join(',',"!WIN16",@current_platforms).":"
766                                                     .join(',',@current_algorithms).";";
767                                         $def .= "int PEM_write_$1(void);";
768                                         $def .=
769                                             "#INFO:"
770                                                 .join(',',@current_platforms).":"
771                                                     .join(',',@current_algorithms).";";
772                                         # Things that are everywhere
773                                         $def .= "int PEM_write_bio_$1(void);";
774                                         next;
775                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
776                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
777                                         # Things not in Win16
778                                         $def .=
779                                             "#INFO:"
780                                                 .join(',',"!WIN16",@current_platforms).":"
781                                                     .join(',',@current_algorithms).";";
782                                         $def .= "int PEM_read_$1(void);";
783                                         $def .=
784                                             "#INFO:"
785                                                 .join(',',@current_platforms).":"
786                                                     .join(',',@current_algorithms).";";
787                                         # Things that are everywhere
788                                         $def .= "int PEM_read_bio_$1(void);";
789                                         next;
790                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
791                                         # Variant for platforms that do not
792                                         # have to access globale variables
793                                         # in shared libraries through functions
794                                         $def .=
795                                             "#INFO:"
796                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
797                                                     .join(',',@current_algorithms).";";
798                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
799                                         $def .=
800                                             "#INFO:"
801                                                 .join(',',@current_platforms).":"
802                                                     .join(',',@current_algorithms).";";
803                                         # Variant for platforms that have to
804                                         # access globale variables in shared
805                                         # libraries through functions
806                                         &$make_variant("_shadow_$2","_shadow_$2",
807                                                       "EXPORT_VAR_AS_FUNCTION",
808                                                       "FUNCTION");
809                                 } elsif ($tag{'CONST_STRICT'} != 1) {
810                                         if (/\{|\/\*|\([^\)]*$/) {
811                                                 $line = $_;
812                                         } else {
813                                                 $def .= $_;
814                                         }
815                                 }
816                         }
817                 }
818                 close(IN);
819
820                 my $algs;
821                 my $plays;
822
823                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
824                 foreach (split /;/, $def) {
825                         my $s; my $k = "FUNCTION"; my $p; my $a;
826                         s/^[\n\s]*//g;
827                         s/[\n\s]*$//g;
828                         next if(/\#undef/);
829                         next if(/typedef\W/);
830                         next if(/\#define/);
831
832                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
833                         if (/^\#INFO:([^:]*):(.*)$/) {
834                                 $plats = $1;
835                                 $algs = $2;
836                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
837                                 next;
838                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
839                                 $s = $1;
840                                 $k = "VARIABLE";
841                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
842                         } elsif (/\(\*(\w*(\{[0-9]+\})?)\([^\)]+/) {
843                                 $s = $1;
844                                 print STDERR "DEBUG: found ANSI C function $s\n" if $debug;
845                         } elsif (/\w+\W+(\w+)\W*\(\s*\)(\s*__attribute__\(.*\)\s*)?$/s) {
846                                 # K&R C
847                                 print STDERR "DEBUG: found K&R C function $s\n" if $debug;
848                                 next;
849                         } elsif (/\w+\W+\w+(\{[0-9]+\})?\W*\(.*\)(\s*__attribute__\(.*\)\s*)?$/s) {
850                                 while (not /\(\)(\s*__attribute__\(.*\)\s*)?$/s) {
851                                         s/[^\(\)]*\)(\s*__attribute__\(.*\)\s*)?$/\)/s;
852                                         s/\([^\(\)]*\)\)(\s*__attribute__\(.*\)\s*)?$/\)/s;
853                                 }
854                                 s/\(void\)//;
855                                 /(\w+(\{[0-9]+\})?)\W*\(\)/s;
856                                 $s = $1;
857                                 print STDERR "DEBUG: found function $s\n" if $debug;
858
859                         } elsif (/TYPEDEF_\w+_OF/) {
860                                 next;
861                         } elsif (/\(/ and not (/=/)) {
862                                 print STDERR "File $file: cannot parse: $_;\n";
863                                 next;
864                         } else {
865                                 next;
866                         }
867
868                         $syms{$s} = 1;
869                         $kind{$s} = $k;
870
871                         $p = $plats;
872                         $a = $algs;
873                         $a .= ",BF" if($s =~ /EVP_bf/);
874                         $a .= ",CAST" if($s =~ /EVP_cast/);
875                         $a .= ",DES" if($s =~ /EVP_des/);
876                         $a .= ",DSA" if($s =~ /EVP_dss/);
877                         $a .= ",IDEA" if($s =~ /EVP_idea/);
878                         $a .= ",MD2" if($s =~ /EVP_md2/);
879                         $a .= ",MD4" if($s =~ /EVP_md4/);
880                         $a .= ",MD5" if($s =~ /EVP_md5/);
881                         $a .= ",RC2" if($s =~ /EVP_rc2/);
882                         $a .= ",RC4" if($s =~ /EVP_rc4/);
883                         $a .= ",RC5" if($s =~ /EVP_rc5/);
884                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
885                         $a .= ",SHA" if($s =~ /EVP_sha/);
886                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
887                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
888                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
889                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
890
891                         $platform{$s} =
892                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
893                         $algorithm{$s} .= ','.$a;
894
895                         if (defined($variant{$s})) {
896                                 foreach $v (split /;/,$variant{$s}) {
897                                         (my $r, my $p, my $k) = split(/:/,$v);
898                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
899                                         $syms{$r} = 1;
900                                         if (!defined($k)) { $k = $kind{$s}; }
901                                         $kind{$r} = $k."(".$s.")";
902                                         $algorithm{$r} = $algorithm{$s};
903                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
904                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
905                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
906                                 }
907                         }
908                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
909                 }
910         }
911
912         # Prune the returned symbols
913
914         delete $syms{"bn_dump1"};
915         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
916
917         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
918         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
919         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
920         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
921
922         # Info we know about
923
924         push @ret, map { $_."\\".&info_string($_,"EXIST",
925                                               $platform{$_},
926                                               $kind{$_},
927                                               $algorithm{$_}) } keys %syms;
928
929         if (keys %unknown_algorithms) {
930                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
931                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
932         }
933         return(@ret);
934 }
935
936 # Param: string of comma-separated platform-specs.
937 sub reduce_platforms
938 {
939         my ($platforms) = @_;
940         my $pl = defined($platforms) ? $platforms : "";
941         my %p = map { $_ => 0 } split /,/, $pl;
942         my $ret;
943
944         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
945             if $debug;
946         # We do this, because if there's code like the following, it really
947         # means the function exists in all cases and should therefore be
948         # everywhere.  By increasing and decreasing, we may attain 0:
949         #
950         # ifndef WIN16
951         #    int foo();
952         # else
953         #    int _fat foo();
954         # endif
955         foreach $platform (split /,/, $pl) {
956                 if ($platform =~ /^!(.*)$/) {
957                         $p{$1}--;
958                 } else {
959                         $p{$platform}++;
960                 }
961         }
962         foreach $platform (keys %p) {
963                 if ($p{$platform} == 0) { delete $p{$platform}; }
964         }
965
966         delete $p{""};
967
968         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
969         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
970             if $debug;
971         return $ret;
972 }
973
974 sub info_string {
975         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
976
977         my %a = defined($algorithms) ?
978             map { $_ => 1 } split /,/, $algorithms : ();
979         my $k = defined($kind) ? $kind : "FUNCTION";
980         my $ret;
981         my $p = &reduce_platforms($platforms);
982
983         delete $a{""};
984
985         $ret = $exist;
986         $ret .= ":".$p;
987         $ret .= ":".$k;
988         $ret .= ":".join(',',sort keys %a);
989         return $ret;
990 }
991
992 sub maybe_add_info {
993         (my $name, *nums, my @symbols) = @_;
994         my $sym;
995         my $new_info = 0;
996         my %syms=();
997
998         print STDERR "Updating $name info\n";
999         foreach $sym (@symbols) {
1000                 (my $s, my $i) = split /\\/, $sym;
1001                 if (defined($nums{$s})) {
1002                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1003                         (my $n, my $dummy) = split /\\/, $nums{$s};
1004                         if (!defined($dummy) || $i ne $dummy) {
1005                                 $nums{$s} = $n."\\".$i;
1006                                 $new_info++;
1007                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1008                         }
1009                 }
1010                 $syms{$s} = 1;
1011         }
1012
1013         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1014         foreach $sym (@s) {
1015                 (my $n, my $i) = split /\\/, $nums{$sym};
1016                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1017                         $new_info++;
1018                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1019                 }
1020         }
1021         if ($new_info) {
1022                 print STDERR "$new_info old symbols got an info update\n";
1023                 if (!$do_rewrite) {
1024                         print STDERR "You should do a rewrite to fix this.\n";
1025                 }
1026         } else {
1027                 print STDERR "No old symbols needed info update\n";
1028         }
1029 }
1030
1031 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1032 sub is_valid
1033 {
1034         my ($keywords_txt,$platforms) = @_;
1035         my (@keywords) = split /,/,$keywords_txt;
1036         my ($falsesum, $truesum) = (0, 1);
1037
1038         # Param: one keyword
1039         sub recognise
1040         {
1041                 my ($keyword,$platforms) = @_;
1042
1043                 if ($platforms) {
1044                         # platforms
1045                         if ($keyword eq "VMS" && $VMS) { return 1; }
1046                         if ($keyword eq "WIN32" && $W32) { return 1; }
1047                         if ($keyword eq "WIN16" && $W16) { return 1; }
1048                         if ($keyword eq "WINNT" && $NT) { return 1; }
1049                         if ($keyword eq "OS2" && $OS2) { return 1; }
1050                         # Special platforms:
1051                         # EXPORT_VAR_AS_FUNCTION means that global variables
1052                         # will be represented as functions.  This currently
1053                         # only happens on VMS-VAX.
1054                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1055                                 return 1;
1056                         }
1057                         return 0;
1058                 } else {
1059                         # algorithms
1060                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1061                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1062                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1063                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1064                         if ($keyword eq "DES" && $no_des) { return 0; }
1065                         if ($keyword eq "BF" && $no_bf) { return 0; }
1066                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1067                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1068                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1069                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1070                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1071                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1072                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1073                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1074                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1075                         if ($keyword eq "DH" && $no_dh) { return 0; }
1076                         if ($keyword eq "EC" && $no_ec) { return 0; }
1077                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1078                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1079                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1080                         if ($keyword eq "AES" && $no_aes) { return 0; }
1081                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1082                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1083                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1084                         if ($keyword eq "ERR" && $no_err) { return 0; }
1085                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1086                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1087                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1088                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1089                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1090                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1091                         if ($keyword eq "HW" && $no_hw) { return 0; }
1092                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1093                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1094                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1095                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1096
1097                         # Nothing recognise as true
1098                         return 1;
1099                 }
1100         }
1101
1102         foreach $k (@keywords) {
1103                 if ($k =~ /^!(.*)$/) {
1104                         $falsesum += &recognise($1,$platforms);
1105                 } else {
1106                         $truesum *= &recognise($k,$platforms);
1107                 }
1108         }
1109         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1110         return (!$falsesum) && $truesum;
1111 }
1112
1113 sub print_test_file
1114 {
1115         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1116         my $n = 1; my @e; my @r;
1117         my $sym; my $prev = ""; my $prefSSLeay;
1118
1119         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1120         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1121         @symbols=((sort @e),(sort @r));
1122
1123         foreach $sym (@symbols) {
1124                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1125                 my $v = 0;
1126                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1127                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1128                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1129                 if (!defined($nums{$s})) {
1130                         print STDERR "Warning: $s does not have a number assigned\n"
1131                             if(!$do_update);
1132                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1133                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1134                         if ($prev eq $s2) {
1135                                 print OUT "\t/* The following has already appeared previously */\n";
1136                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1137                         }
1138                         $prev = $s2;    # To warn about duplicates...
1139
1140                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1141                         if ($v) {
1142                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1143                         } else {
1144                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1145                         }
1146                 }
1147         }
1148 }
1149
1150 sub get_version {
1151    local *MF;
1152    my $v = '?';
1153    open MF, 'Makefile' or return $v;
1154    while (<MF>) {
1155      $v = $1, last if /^VERSION=(.*?)\s*$/;
1156    }
1157    close MF;
1158    return $v;
1159 }
1160
1161 sub print_def_file
1162 {
1163         (*OUT,my $name,*nums,my @symbols)=@_;
1164         my $n = 1; my @e; my @r; my @v; my $prev="";
1165         my $liboptions="";
1166         my $libname = $name;
1167         my $http_vendor = 'www.openssl.org/';
1168         my $version = get_version();
1169         my $what = "OpenSSL: implementation of Secure Socket Layer";
1170         my $description = "$what $version, $name - http://$http_vendor";
1171
1172         if ($W32)
1173                 { $libname.="32"; }
1174         elsif ($W16)
1175                 { $libname.="16"; }
1176         elsif ($OS2)
1177                 { # DLL names should not clash on the whole system.
1178                   # However, they should not have any particular relationship
1179                   # to the name of the static library.  Chose descriptive names
1180                   # (must be at most 8 chars).
1181                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1182                   $libname = $translate{$name} || $name;
1183                   $liboptions = <<EOO;
1184 INITINSTANCE
1185 DATA MULTIPLE NONSHARED
1186 EOO
1187                   # Vendor field can't contain colon, drat; so we omit http://
1188                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1189                 }
1190
1191         print OUT <<"EOF";
1192 ;
1193 ; Definition file for the DLL version of the $name library from OpenSSL
1194 ;
1195
1196 LIBRARY         $libname        $liboptions
1197
1198 DESCRIPTION     '$description'
1199
1200 EOF
1201
1202         if ($W16) {
1203                 print <<"EOF";
1204 CODE            PRELOAD MOVEABLE
1205 DATA            PRELOAD MOVEABLE SINGLE
1206
1207 EXETYPE         WINDOWS
1208
1209 HEAPSIZE        4096
1210 STACKSIZE       8192
1211
1212 EOF
1213         }
1214
1215         print "EXPORTS\n";
1216
1217         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1218         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1219         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1220         @symbols=((sort @e),(sort @r), (sort @v));
1221
1222
1223         foreach $sym (@symbols) {
1224                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1225                 my $v = 0;
1226                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1227                 if (!defined($nums{$s})) {
1228                         printf STDERR "Warning: $s does not have a number assigned\n"
1229                             if(!$do_update);
1230                 } else {
1231                         (my $n, my $dummy) = split /\\/, $nums{$s};
1232                         my %pf = ();
1233                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1234                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1235                         if (is_valid($p,1) && is_valid($a,0)) {
1236                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1237                                 if ($prev eq $s2) {
1238                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1239                                 }
1240                                 $prev = $s2;    # To warn about duplicates...
1241                                 if($v && !$OS2) {
1242                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1243                                 } else {
1244                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1245                                 }
1246                         }
1247                 }
1248         }
1249         printf OUT "\n";
1250 }
1251
1252 sub load_numbers
1253 {
1254         my($name)=@_;
1255         my(@a,%ret);
1256
1257         $max_num = 0;
1258         $num_noinfo = 0;
1259         $prev = "";
1260         $prev_cnt = 0;
1261
1262         open(IN,"<$name") || die "unable to open $name:$!\n";
1263         while (<IN>) {
1264                 chop;
1265                 s/#.*$//;
1266                 next if /^\s*$/;
1267                 @a=split;
1268                 if (defined $ret{$a[0]}) {
1269                         # This is actually perfectly OK
1270                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1271                 }
1272                 if ($max_num > $a[1]) {
1273                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1274                 }
1275                 elsif ($max_num == $a[1]) {
1276                         # This is actually perfectly OK
1277                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1278                         if ($a[0] eq $prev) {
1279                                 $prev_cnt++;
1280                                 $a[0] .= "{$prev_cnt}";
1281                         }
1282                 }
1283                 else {
1284                         $prev_cnt = 0;
1285                 }
1286                 if ($#a < 2) {
1287                         # Existence will be proven later, in do_defs
1288                         $ret{$a[0]}=$a[1];
1289                         $num_noinfo++;
1290                 } else {
1291                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1292                 }
1293                 $max_num = $a[1] if $a[1] > $max_num;
1294                 $prev=$a[0];
1295         }
1296         if ($num_noinfo) {
1297                 print STDERR "Warning: $num_noinfo symbols were without info.";
1298                 if ($do_rewrite) {
1299                         printf STDERR "  The rewrite will fix this.\n";
1300                 } else {
1301                         printf STDERR "  You should do a rewrite to fix this.\n";
1302                 }
1303         }
1304         close(IN);
1305         return(%ret);
1306 }
1307
1308 sub parse_number
1309 {
1310         (my $str, my $what) = @_;
1311         (my $n, my $i) = split(/\\/,$str);
1312         if ($what eq "n") {
1313                 return $n;
1314         } else {
1315                 return $i;
1316         }
1317 }
1318
1319 sub rewrite_numbers
1320 {
1321         (*OUT,$name,*nums,@symbols)=@_;
1322         my $thing;
1323
1324         print STDERR "Rewriting $name\n";
1325
1326         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1327         my $r; my %r; my %rsyms;
1328         foreach $r (@r) {
1329                 (my $s, my $i) = split /\\/, $r;
1330                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1331                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1332                 $r{$a} = $s."\\".$i;
1333                 $rsyms{$s} = 1;
1334         }
1335
1336         my %syms = ();
1337         foreach $_ (@symbols) {
1338                 (my $n, my $i) = split /\\/;
1339                 $syms{$n} = 1;
1340         }
1341
1342         my @s=sort {
1343             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1344             || $a cmp $b
1345         } keys %nums;
1346         foreach $sym (@s) {
1347                 (my $n, my $i) = split /\\/, $nums{$sym};
1348                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1349                 next if defined($rsyms{$sym});
1350                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1351                 $i="NOEXIST::FUNCTION:"
1352                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1353                 my $s2 = $sym;
1354                 $s2 =~ s/\{[0-9]+\}$//;
1355                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1356                 if (exists $r{$sym}) {
1357                         (my $s, $i) = split /\\/,$r{$sym};
1358                         my $s2 = $s;
1359                         $s2 =~ s/\{[0-9]+\}$//;
1360                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1361                 }
1362         }
1363 }
1364
1365 sub update_numbers
1366 {
1367         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1368         my $new_syms = 0;
1369
1370         print STDERR "Updating $name numbers\n";
1371
1372         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1373         my $r; my %r; my %rsyms;
1374         foreach $r (@r) {
1375                 (my $s, my $i) = split /\\/, $r;
1376                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1377                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1378                 $r{$a} = $s."\\".$i;
1379                 $rsyms{$s} = 1;
1380         }
1381
1382         foreach $sym (@symbols) {
1383                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1384                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1385                 next if defined($rsyms{$sym});
1386                 die "ERROR: Symbol $sym had no info attached to it."
1387                     if $i eq "";
1388                 if (!exists $nums{$s}) {
1389                         $new_syms++;
1390                         my $s2 = $s;
1391                         $s2 =~ s/\{[0-9]+\}$//;
1392                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1393                         if (exists $r{$s}) {
1394                                 ($s, $i) = split /\\/,$r{$s};
1395                                 $s =~ s/\{[0-9]+\}$//;
1396                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1397                         }
1398                 }
1399         }
1400         if($new_syms) {
1401                 print STDERR "$new_syms New symbols added\n";
1402         } else {
1403                 print STDERR "No New symbols Added\n";
1404         }
1405 }
1406
1407 sub check_existing
1408 {
1409         (*nums, my @symbols)=@_;
1410         my %existing; my @remaining;
1411         @remaining=();
1412         foreach $sym (@symbols) {
1413                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1414                 $existing{$s}=1;
1415         }
1416         foreach $sym (keys %nums) {
1417                 if (!exists $existing{$sym}) {
1418                         push @remaining, $sym;
1419                 }
1420         }
1421         if(@remaining) {
1422                 print STDERR "The following symbols do not seem to exist:\n";
1423                 foreach $sym (@remaining) {
1424                         print STDERR "\t",$sym,"\n";
1425                 }
1426         }
1427 }
1428