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