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