efef49d648c89a9b3ba8cab5135d72c989433276
[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 $VMSNonVAX=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", "ZLIB",
83                         "OPENSSL_FIPS", "OPENSSL_FIPSCAPABLE" );
84 my @known_ossl_platforms = ( "VMS", "WIN16", "WIN32", "WINNT", "OS2" );
85 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
86                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
87                          "SHA256", "SHA512", "RIPEMD",
88                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA", "EC2M",
89                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
90                          # EC_NISTP_64_GCC_128
91                          "EC_NISTP_64_GCC_128",
92                          # Envelope "algorithms"
93                          "EVP", "X509", "ASN1_TYPEDEFS",
94                          # Helper "algorithms"
95                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
96                          "LOCKING",
97                          # External "algorithms"
98                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
99                          # Engines
100                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
101                          # RFC3779
102                          "RFC3779",
103                          # TLS
104                          "TLSEXT", "PSK", "SRP",
105                          # CMS
106                          "CMS",
107                          # CryptoAPI Engine
108                          "CAPIENG",
109                          # SSL v2
110                          "SSL2",
111                          # JPAKE
112                          "JPAKE",
113                          # NEXTPROTONEG
114                          "NEXTPROTONEG",
115                          # Deprecated functions
116                          "DEPRECATED",
117                          # Hide SSL internals
118                          "SSL_INTERN",
119                          # SCTP
120                          "SCTP");
121
122 my $options="";
123 open(IN,"<Makefile") || die "unable to open Makefile!\n";
124 while(<IN>) {
125     $options=$1 if (/^OPTIONS=(.*)$/);
126 }
127 close(IN);
128
129 # The following ciphers may be excluded (by Configure). This means functions
130 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
131 # in directory xxx is ignored.
132 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
133 my $no_cast; my $no_whirlpool; my $no_camellia; my $no_seed;
134 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
135 my $no_rsa; my $no_dsa; my $no_dh; my $no_hmac=0; my $no_aes; my $no_krb5;
136 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
137 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
138 my $no_rfc3779; my $no_psk; my $no_tlsext; my $no_cms; my $no_capieng;
139 my $no_jpake; my $no_ssl2; my $no_ec2m; my $no_nextprotoneg;
140 my $no_srp; my $no_nistp_gcc; my $no_sctp;
141
142 my $fips;
143
144 my $zlib;
145
146
147 foreach (@ARGV, split(/ /, $options))
148         {
149         $debug=1 if $_ eq "debug";
150         $W32=1 if $_ eq "32";
151         $W16=1 if $_ eq "16";
152         if($_ eq "NT") {
153                 $W32 = 1;
154                 $NT = 1;
155         }
156         if ($_ eq "VMS-VAX") {
157                 $VMS=1;
158                 $VMSVAX=1;
159         }
160         if ($_ eq "VMS-NonVAX") {
161                 $VMS=1;
162                 $VMSNonVAX=1;
163         }
164         $VMS=1 if $_ eq "VMS";
165         $OS2=1 if $_ eq "OS2";
166         $fips=1 if /^fips/;
167         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
168                          || $_ eq "enable-zlib-dynamic") {
169                 $zlib = 1;
170         }
171
172         $do_ssl=1 if $_ eq "ssleay";
173         if ($_ eq "ssl") {
174                 $do_ssl=1; 
175                 $libname=$_
176         }
177         $do_crypto=1 if $_ eq "libeay";
178         if ($_ eq "crypto") {
179                 $do_crypto=1;
180                 $libname=$_;
181         }
182         $no_static_engine=1 if $_ eq "no-static-engine";
183         $no_static_engine=0 if $_ eq "enable-static-engine";
184         $do_update=1 if $_ eq "update";
185         $do_rewrite=1 if $_ eq "rewrite";
186         $do_ctest=1 if $_ eq "ctest";
187         $do_ctestall=1 if $_ eq "ctestall";
188         $do_checkexist=1 if $_ eq "exist";
189         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
190
191         if    (/^no-rc2$/)      { $no_rc2=1; }
192         elsif (/^no-rc4$/)      { $no_rc4=1; }
193         elsif (/^no-rc5$/)      { $no_rc5=1; }
194         elsif (/^no-idea$/)     { $no_idea=1; }
195         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
196         elsif (/^no-bf$/)       { $no_bf=1; }
197         elsif (/^no-cast$/)     { $no_cast=1; }
198         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
199         elsif (/^no-md2$/)      { $no_md2=1; }
200         elsif (/^no-md4$/)      { $no_md4=1; }
201         elsif (/^no-md5$/)      { $no_md5=1; }
202         elsif (/^no-sha$/)      { $no_sha=1; }
203         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
204         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
205         elsif (/^no-rsa$/)      { $no_rsa=1; }
206         elsif (/^no-dsa$/)      { $no_dsa=1; }
207         elsif (/^no-dh$/)       { $no_dh=1; }
208         elsif (/^no-ec$/)       { $no_ec=1; }
209         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
210         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
211         elsif (/^no-hmac$/)     { $no_hmac=1; }
212         elsif (/^no-aes$/)      { $no_aes=1; }
213         elsif (/^no-camellia$/) { $no_camellia=1; }
214         elsif (/^no-seed$/)     { $no_seed=1; }
215         elsif (/^no-evp$/)      { $no_evp=1; }
216         elsif (/^no-lhash$/)    { $no_lhash=1; }
217         elsif (/^no-stack$/)    { $no_stack=1; }
218         elsif (/^no-err$/)      { $no_err=1; }
219         elsif (/^no-buffer$/)   { $no_buffer=1; }
220         elsif (/^no-bio$/)      { $no_bio=1; }
221         #elsif (/^no-locking$/) { $no_locking=1; }
222         elsif (/^no-comp$/)     { $no_comp=1; }
223         elsif (/^no-dso$/)      { $no_dso=1; }
224         elsif (/^no-krb5$/)     { $no_krb5=1; }
225         elsif (/^no-engine$/)   { $no_engine=1; }
226         elsif (/^no-hw$/)       { $no_hw=1; }
227         elsif (/^no-gmp$/)      { $no_gmp=1; }
228         elsif (/^no-rfc3779$/)  { $no_rfc3779=1; }
229         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
230         elsif (/^no-cms$/)      { $no_cms=1; }
231         elsif (/^no-ec2m$/)     { $no_ec2m=1; }
232         elsif (/^no-ec-nistp224-64-gcc-128$/)   { $no_nistp_gcc=1; }
233         elsif (/^no-nextprotoneg$/)     { $no_nextprotoneg=1; }
234         elsif (/^no-ssl2$/)     { $no_ssl2=1; }
235         elsif (/^no-capieng$/)  { $no_capieng=1; }
236         elsif (/^no-jpake$/)    { $no_jpake=1; }
237         elsif (/^no-srp$/)      { $no_srp=1; }
238         elsif (/^no-sctp$/)     { $no_sctp=1; }
239         }
240
241
242 if (!$libname) { 
243         if ($do_ssl) {
244                 $libname="SSLEAY";
245         }
246         if ($do_crypto) {
247                 $libname="LIBEAY";
248         }
249 }
250
251 # If no platform is given, assume WIN32
252 if ($W32 + $W16 + $VMS + $OS2 == 0) {
253         $W32 = 1;
254 }
255
256 # Add extra knowledge
257 if ($W16) {
258         $no_fp_api=1;
259 }
260
261 if (!$do_ssl && !$do_crypto)
262         {
263         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
264         exit(1);
265         }
266
267 %ssl_list=&load_numbers($ssl_num);
268 $max_ssl = $max_num;
269 %crypto_list=&load_numbers($crypto_num);
270 $max_crypto = $max_num;
271
272 my $ssl="ssl/ssl.h";
273 $ssl.=" ssl/kssl.h";
274 $ssl.=" ssl/tls1.h";
275 $ssl.=" ssl/srtp.h";
276
277 my $crypto ="crypto/crypto.h";
278 $crypto.=" crypto/cryptlib.h";
279 $crypto.=" crypto/o_dir.h";
280 $crypto.=" crypto/o_str.h";
281 $crypto.=" crypto/o_time.h";
282 $crypto.=" crypto/des/des.h crypto/des/des_old.h" ; # unless $no_des;
283 $crypto.=" crypto/idea/idea.h" ; # unless $no_idea;
284 $crypto.=" crypto/rc4/rc4.h" ; # unless $no_rc4;
285 $crypto.=" crypto/rc5/rc5.h" ; # unless $no_rc5;
286 $crypto.=" crypto/rc2/rc2.h" ; # unless $no_rc2;
287 $crypto.=" crypto/bf/blowfish.h" ; # unless $no_bf;
288 $crypto.=" crypto/cast/cast.h" ; # unless $no_cast;
289 $crypto.=" crypto/whrlpool/whrlpool.h" ;
290 $crypto.=" crypto/md2/md2.h" ; # unless $no_md2;
291 $crypto.=" crypto/md4/md4.h" ; # unless $no_md4;
292 $crypto.=" crypto/md5/md5.h" ; # unless $no_md5;
293 $crypto.=" crypto/mdc2/mdc2.h" ; # unless $no_mdc2;
294 $crypto.=" crypto/sha/sha.h" ; # unless $no_sha;
295 $crypto.=" crypto/ripemd/ripemd.h" ; # unless $no_ripemd;
296 $crypto.=" crypto/aes/aes.h" ; # unless $no_aes;
297 $crypto.=" crypto/camellia/camellia.h" ; # unless $no_camellia;
298 $crypto.=" crypto/seed/seed.h"; # unless $no_seed;
299
300 $crypto.=" crypto/bn/bn.h";
301 $crypto.=" crypto/rsa/rsa.h" ; # unless $no_rsa;
302 $crypto.=" crypto/dsa/dsa.h" ; # unless $no_dsa;
303 $crypto.=" crypto/dh/dh.h" ; # unless $no_dh;
304 $crypto.=" crypto/ec/ec.h" ; # unless $no_ec;
305 $crypto.=" crypto/ecdsa/ecdsa.h" ; # unless $no_ecdsa;
306 $crypto.=" crypto/ecdh/ecdh.h" ; # unless $no_ecdh;
307 $crypto.=" crypto/hmac/hmac.h" ; # unless $no_hmac;
308
309 $crypto.=" crypto/engine/engine.h"; # unless $no_engine;
310 $crypto.=" crypto/stack/stack.h" ; # unless $no_stack;
311 $crypto.=" crypto/buffer/buffer.h" ; # unless $no_buffer;
312 $crypto.=" crypto/bio/bio.h" ; # unless $no_bio;
313 $crypto.=" crypto/dso/dso.h" ; # unless $no_dso;
314 $crypto.=" crypto/lhash/lhash.h" ; # unless $no_lhash;
315 $crypto.=" crypto/conf/conf.h";
316 $crypto.=" crypto/txt_db/txt_db.h";
317
318 $crypto.=" crypto/evp/evp.h" ; # unless $no_evp;
319 $crypto.=" crypto/objects/objects.h";
320 $crypto.=" crypto/pem/pem.h";
321 #$crypto.=" crypto/meth/meth.h";
322 $crypto.=" crypto/asn1/asn1.h";
323 $crypto.=" crypto/asn1/asn1t.h";
324 $crypto.=" crypto/asn1/asn1_mac.h";
325 $crypto.=" crypto/err/err.h" ; # unless $no_err;
326 $crypto.=" crypto/pkcs7/pkcs7.h";
327 $crypto.=" crypto/pkcs12/pkcs12.h";
328 $crypto.=" crypto/x509/x509.h";
329 $crypto.=" crypto/x509/x509_vfy.h";
330 $crypto.=" crypto/x509v3/x509v3.h";
331 $crypto.=" crypto/ts/ts.h";
332 $crypto.=" crypto/rand/rand.h";
333 $crypto.=" crypto/comp/comp.h" ; # unless $no_comp;
334 $crypto.=" crypto/ocsp/ocsp.h";
335 $crypto.=" crypto/ui/ui.h crypto/ui/ui_compat.h";
336 $crypto.=" crypto/krb5/krb5_asn.h";
337 #$crypto.=" crypto/store/store.h";
338 $crypto.=" crypto/pqueue/pqueue.h";
339 $crypto.=" crypto/cms/cms.h";
340 $crypto.=" crypto/jpake/jpake.h";
341 $crypto.=" crypto/srp/srp.h";
342 $crypto.=" crypto/modes/modes.h";
343 $crypto.=" fips/fips.h fips/rand/fips_rand.h";
344
345 my $symhacks="crypto/symhacks.h";
346
347 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
348 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
349
350 if ($do_update) {
351
352 if ($do_ssl == 1) {
353
354         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
355         if ($do_rewrite == 1) {
356                 open(OUT, ">$ssl_num");
357                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
358         } else {
359                 open(OUT, ">>$ssl_num");
360         }
361         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
362         close OUT;
363 }
364
365 if($do_crypto == 1) {
366
367         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
368         if ($do_rewrite == 1) {
369                 open(OUT, ">$crypto_num");
370                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
371         } else {
372                 open(OUT, ">>$crypto_num");
373         }
374         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
375         close OUT;
376
377
378 } elsif ($do_checkexist) {
379         &check_existing(*ssl_list, @ssl_symbols)
380                 if $do_ssl == 1;
381         &check_existing(*crypto_list, @crypto_symbols)
382                 if $do_crypto == 1;
383 } elsif ($do_ctest || $do_ctestall) {
384
385         print <<"EOF";
386
387 /* Test file to check all DEF file symbols are present by trying
388  * to link to all of them. This is *not* intended to be run!
389  */
390
391 int main()
392 {
393 EOF
394         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
395                 if $do_ssl == 1;
396
397         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
398                 if $do_crypto == 1;
399
400         print "}\n";
401
402 } else {
403
404         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
405                 if $do_ssl == 1;
406
407         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
408                 if $do_crypto == 1;
409
410 }
411
412
413 sub do_defs
414 {
415         my($name,$files,$symhacksfile)=@_;
416         my $file;
417         my @ret;
418         my %syms;
419         my %platform;           # For anything undefined, we assume ""
420         my %kind;               # For anything undefined, we assume "FUNCTION"
421         my %algorithm;          # For anything undefined, we assume ""
422         my %variant;
423         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
424                                 # is the same name as the original.
425         my $cpp;
426         my %unknown_algorithms = ();
427
428         foreach $file (split(/\s+/,$symhacksfile." ".$files))
429                 {
430                 print STDERR "DEBUG: starting on $file:\n" if $debug;
431                 open(IN,"<$file") || die "unable to open $file:$!\n";
432                 my $line = "", my $def= "";
433                 my %tag = (
434                         (map { $_ => 0 } @known_platforms),
435                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
436                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
437                         NOPROTO         => 0,
438                         PERL5           => 0,
439                         _WINDLL         => 0,
440                         CONST_STRICT    => 0,
441                         TRUE            => 1,
442                 );
443                 my $symhacking = $file eq $symhacksfile;
444                 my @current_platforms = ();
445                 my @current_algorithms = ();
446
447                 # params: symbol, alias, platforms, kind
448                 # The reason to put this subroutine in a variable is that
449                 # it will otherwise create it's own, unshared, version of
450                 # %tag and %variant...
451                 my $make_variant = sub
452                 {
453                         my ($s, $a, $p, $k) = @_;
454                         my ($a1, $a2);
455
456                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
457                         if (defined($p))
458                         {
459                                 $a1 = join(",",$p,
460                                            grep(!/^$/,
461                                                 map { $tag{$_} == 1 ? $_ : "" }
462                                                 @known_platforms));
463                         }
464                         else
465                         {
466                                 $a1 = join(",",
467                                            grep(!/^$/,
468                                                 map { $tag{$_} == 1 ? $_ : "" }
469                                                 @known_platforms));
470                         }
471                         $a2 = join(",",
472                                    grep(!/^$/,
473                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
474                                         @known_ossl_platforms));
475                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
476                         if ($a1 eq "") { $a1 = $a2; }
477                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
478                         if ($a eq $s)
479                         {
480                                 if (!defined($variant_cnt{$s}))
481                                 {
482                                         $variant_cnt{$s} = 0;
483                                 }
484                                 $variant_cnt{$s}++;
485                                 $a .= "{$variant_cnt{$s}}";
486                         }
487                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
488                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
489                         if (!grep(/^$togrep$/,
490                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
491                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
492                                 $variant{$s} .= $toadd;
493                         }
494                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
495                 };
496
497                 print STDERR "DEBUG: parsing ----------\n" if $debug;
498                 while(<IN>) {
499                         if (/\/\* Error codes for the \w+ functions\. \*\//)
500                                 {
501                                 undef @tag;
502                                 last;
503                                 }
504                         if ($line ne '') {
505                                 $_ = $line . $_;
506                                 $line = '';
507                         }
508
509                         if (/\\$/) {
510                                 chomp; # remove eol
511                                 chop; # remove ending backslash
512                                 $line = $_;
513                                 next;
514                         }
515
516                         if(/\/\*/) {
517                                 if (not /\*\//) {       # multiline comment...
518                                         $line = $_;     # ... just accumulate
519                                         next;
520                                 } else {
521                                         s/\/\*.*?\*\///gs;# wipe it
522                                 }
523                         }
524
525                         if ($cpp) {
526                                 $cpp++ if /^#\s*if/;
527                                 $cpp-- if /^#\s*endif/;
528                                 next;
529                         }
530                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
531
532                         s/{[^{}]*}//gs;                      # ignore {} blocks
533                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
534                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
535                         if (/^\#\s*ifndef\s+(.*)/) {
536                                 push(@tag,"-");
537                                 push(@tag,$1);
538                                 $tag{$1}=-1;
539                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
540                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
541                                 push(@tag,"-");
542                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
543                                         my $tmp_1 = $1;
544                                         my $tmp_;
545                                         foreach $tmp_ (split '\&\&',$tmp_1) {
546                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
547                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
548                                                 push(@tag,$1);
549                                                 $tag{$1}=-1;
550                                         }
551                                 } else {
552                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
553                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
554                                         push(@tag,$1);
555                                         $tag{$1}=-1;
556                                 }
557                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
558                                 push(@tag,"-");
559                                 push(@tag,$1);
560                                 $tag{$1}=1;
561                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
562                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
563                                 push(@tag,"-");
564                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
565                                         my $tmp_1 = $1;
566                                         my $tmp_;
567                                         foreach $tmp_ (split '\|\|',$tmp_1) {
568                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
569                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
570                                                 push(@tag,$1);
571                                                 $tag{$1}=1;
572                                         }
573                                 } else {
574                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
575                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
576                                         push(@tag,$1);
577                                         $tag{$1}=1;
578                                 }
579                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
580                                 my $tag_i = $#tag;
581                                 while($tag[$tag_i] ne "-") {
582                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
583                                                 $tag{$tag[$tag_i]}=2;
584                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
585                                         }
586                                         $tag_i--;
587                                 }
588                         } elsif (/^\#\s*endif/) {
589                                 my $tag_i = $#tag;
590                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
591                                         my $t=$tag[$tag_i];
592                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
593                                         if ($tag{$t}==2) {
594                                                 $tag{$t}=-1;
595                                         } else {
596                                                 $tag{$t}=0;
597                                         }
598                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
599                                         pop(@tag);
600                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
601                                                 $t=$1;
602                                         } else {
603                                                 $t="";
604                                         }
605                                         if ($t ne ""
606                                             && !grep(/^$t$/, @known_algorithms)) {
607                                                 $unknown_algorithms{$t} = 1;
608                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
609                                         }
610                                         $tag_i--;
611                                 }
612                                 pop(@tag);
613                         } elsif (/^\#\s*else/) {
614                                 my $tag_i = $#tag;
615                                 while($tag[$tag_i] ne "-") {
616                                         my $t=$tag[$tag_i];
617                                         $tag{$t}= -$tag{$t};
618                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
619                                         $tag_i--;
620                                 }
621                         } elsif (/^\#\s*if\s+1/) {
622                                 push(@tag,"-");
623                                 # Dummy tag
624                                 push(@tag,"TRUE");
625                                 $tag{"TRUE"}=1;
626                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
627                         } elsif (/^\#\s*if\s+0/) {
628                                 push(@tag,"-");
629                                 # Dummy tag
630                                 push(@tag,"TRUE");
631                                 $tag{"TRUE"}=-1;
632                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
633                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
634                                  && $symhacking && $tag{'TRUE'} != -1) {
635                                 # This is for aliasing.  When we find an alias,
636                                 # we have to invert
637                                 &$make_variant($1,$2);
638                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
639                         }
640                         if (/^\#/) {
641                                 @current_platforms =
642                                     grep(!/^$/,
643                                          map { $tag{$_} == 1 ? $_ :
644                                                    $tag{$_} == -1 ? "!".$_  : "" }
645                                          @known_platforms);
646                                 push @current_platforms
647                                     , grep(!/^$/,
648                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
649                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
650                                            @known_ossl_platforms);
651                                 @current_algorithms =
652                                     grep(!/^$/,
653                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
654                                          @known_algorithms);
655                                 $def .=
656                                     "#INFO:"
657                                         .join(',',@current_platforms).":"
658                                             .join(',',@current_algorithms).";";
659                                 next;
660                         }
661                         if ($tag{'TRUE'} != -1) {
662                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
663                                         next;
664                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
665                                         $def .= "int d2i_$3(void);";
666                                         $def .= "int i2d_$3(void);";
667                                         # Variant for platforms that do not
668                                         # have to access globale variables
669                                         # in shared libraries through functions
670                                         $def .=
671                                             "#INFO:"
672                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
673                                                     .join(',',@current_algorithms).";";
674                                         $def .= "OPENSSL_EXTERN int $2_it;";
675                                         $def .=
676                                             "#INFO:"
677                                                 .join(',',@current_platforms).":"
678                                                     .join(',',@current_algorithms).";";
679                                         # Variant for platforms that have to
680                                         # access globale variables in shared
681                                         # libraries through functions
682                                         &$make_variant("$2_it","$2_it",
683                                                       "EXPORT_VAR_AS_FUNCTION",
684                                                       "FUNCTION");
685                                         next;
686                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
687                                         $def .= "int d2i_$3(void);";
688                                         $def .= "int i2d_$3(void);";
689                                         $def .= "int $3_free(void);";
690                                         $def .= "int $3_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_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
711                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
712                                         $def .= "int d2i_$1(void);";
713                                         $def .= "int i2d_$1(void);";
714                                         $def .= "int $1_free(void);";
715                                         $def .= "int $1_new(void);";
716                                         # Variant for platforms that do not
717                                         # have to access globale variables
718                                         # in shared libraries through functions
719                                         $def .=
720                                             "#INFO:"
721                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
722                                                     .join(',',@current_algorithms).";";
723                                         $def .= "OPENSSL_EXTERN int $1_it;";
724                                         $def .=
725                                             "#INFO:"
726                                                 .join(',',@current_platforms).":"
727                                                     .join(',',@current_algorithms).";";
728                                         # Variant for platforms that have to
729                                         # access globale variables in shared
730                                         # libraries through functions
731                                         &$make_variant("$1_it","$1_it",
732                                                       "EXPORT_VAR_AS_FUNCTION",
733                                                       "FUNCTION");
734                                         next;
735                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
736                                         $def .= "int d2i_$2(void);";
737                                         $def .= "int i2d_$2(void);";
738                                         # Variant for platforms that do not
739                                         # have to access globale variables
740                                         # in shared libraries through functions
741                                         $def .=
742                                             "#INFO:"
743                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
744                                                     .join(',',@current_algorithms).";";
745                                         $def .= "OPENSSL_EXTERN int $2_it;";
746                                         $def .=
747                                             "#INFO:"
748                                                 .join(',',@current_platforms).":"
749                                                     .join(',',@current_algorithms).";";
750                                         # Variant for platforms that have to
751                                         # access globale variables in shared
752                                         # libraries through functions
753                                         &$make_variant("$2_it","$2_it",
754                                                       "EXPORT_VAR_AS_FUNCTION",
755                                                       "FUNCTION");
756                                         next;
757                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
758                                         $def .= "int $1_free(void);";
759                                         $def .= "int $1_new(void);";
760                                         next;
761                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
762                                         $def .= "int d2i_$2(void);";
763                                         $def .= "int i2d_$2(void);";
764                                         $def .= "int $2_free(void);";
765                                         $def .= "int $2_new(void);";
766                                         # Variant for platforms that do not
767                                         # have to access globale variables
768                                         # in shared libraries through functions
769                                         $def .=
770                                             "#INFO:"
771                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
772                                                     .join(',',@current_algorithms).";";
773                                         $def .= "OPENSSL_EXTERN int $2_it;";
774                                         $def .=
775                                             "#INFO:"
776                                                 .join(',',@current_platforms).":"
777                                                     .join(',',@current_algorithms).";";
778                                         # Variant for platforms that have to
779                                         # access globale variables in shared
780                                         # libraries through functions
781                                         &$make_variant("$2_it","$2_it",
782                                                       "EXPORT_VAR_AS_FUNCTION",
783                                                       "FUNCTION");
784                                         next;
785                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
786                                         # Variant for platforms that do not
787                                         # have to access globale variables
788                                         # in shared libraries through functions
789                                         $def .=
790                                             "#INFO:"
791                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
792                                                     .join(',',@current_algorithms).";";
793                                         $def .= "OPENSSL_EXTERN int $1_it;";
794                                         $def .=
795                                             "#INFO:"
796                                                 .join(',',@current_platforms).":"
797                                                     .join(',',@current_algorithms).";";
798                                         # Variant for platforms that have to
799                                         # access globale variables in shared
800                                         # libraries through functions
801                                         &$make_variant("$1_it","$1_it",
802                                                       "EXPORT_VAR_AS_FUNCTION",
803                                                       "FUNCTION");
804                                         next;
805                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
806                                         $def .= "int i2d_$1_NDEF(void);";
807                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
808                                         next;
809                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
810                                         $def .= "int $1_print_ctx(void);";
811                                         next;
812                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
813                                         $def .= "int $2_print_ctx(void);";
814                                         next;
815                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
816                                         next;
817                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
818                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
819                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
820                                         # Things not in Win16
821                                         $def .=
822                                             "#INFO:"
823                                                 .join(',',"!WIN16",@current_platforms).":"
824                                                     .join(',',@current_algorithms).";";
825                                         $def .= "int PEM_read_$1(void);";
826                                         $def .= "int PEM_write_$1(void);";
827                                         $def .=
828                                             "#INFO:"
829                                                 .join(',',@current_platforms).":"
830                                                     .join(',',@current_algorithms).";";
831                                         # Things that are everywhere
832                                         $def .= "int PEM_read_bio_$1(void);";
833                                         $def .= "int PEM_write_bio_$1(void);";
834                                         next;
835                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
836                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
837                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
838                                         # Things not in Win16
839                                         $def .=
840                                             "#INFO:"
841                                                 .join(',',"!WIN16",@current_platforms).":"
842                                                     .join(',',@current_algorithms).";";
843                                         $def .= "int PEM_write_$1(void);";
844                                         $def .=
845                                             "#INFO:"
846                                                 .join(',',@current_platforms).":"
847                                                     .join(',',@current_algorithms).";";
848                                         # Things that are everywhere
849                                         $def .= "int PEM_write_bio_$1(void);";
850                                         next;
851                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
852                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
853                                         # Things not in Win16
854                                         $def .=
855                                             "#INFO:"
856                                                 .join(',',"!WIN16",@current_platforms).":"
857                                                     .join(',',@current_algorithms).";";
858                                         $def .= "int PEM_read_$1(void);";
859                                         $def .=
860                                             "#INFO:"
861                                                 .join(',',@current_platforms).":"
862                                                     .join(',',@current_algorithms).";";
863                                         # Things that are everywhere
864                                         $def .= "int PEM_read_bio_$1(void);";
865                                         next;
866                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
867                                         # Variant for platforms that do not
868                                         # have to access globale variables
869                                         # in shared libraries through functions
870                                         $def .=
871                                             "#INFO:"
872                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
873                                                     .join(',',@current_algorithms).";";
874                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
875                                         $def .=
876                                             "#INFO:"
877                                                 .join(',',@current_platforms).":"
878                                                     .join(',',@current_algorithms).";";
879                                         # Variant for platforms that have to
880                                         # access globale variables in shared
881                                         # libraries through functions
882                                         &$make_variant("_shadow_$2","_shadow_$2",
883                                                       "EXPORT_VAR_AS_FUNCTION",
884                                                       "FUNCTION");
885                                 } elsif ($tag{'CONST_STRICT'} != 1) {
886                                         if (/\{|\/\*|\([^\)]*$/) {
887                                                 $line = $_;
888                                         } else {
889                                                 $def .= $_;
890                                         }
891                                 }
892                         }
893                 }
894                 close(IN);
895
896                 my $algs;
897                 my $plays;
898
899                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
900                 foreach (split /;/, $def) {
901                         my $s; my $k = "FUNCTION"; my $p; my $a;
902                         s/^[\n\s]*//g;
903                         s/[\n\s]*$//g;
904                         next if(/\#undef/);
905                         next if(/typedef\W/);
906                         next if(/\#define/);
907
908                         # Reduce argument lists to empty ()
909                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
910                         while(/\(.*\)/s) {
911                                 s/\([^\(\)]+\)/\{\}/gs;
912                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
913                         }
914                         # pretend as we didn't use curly braces: {} -> ()
915                         s/\{\}/\(\)/gs;
916
917                         s/STACK_OF\(\)/void/gs;
918                         s/LHASH_OF\(\)/void/gs;
919
920                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
921                         if (/^\#INFO:([^:]*):(.*)$/) {
922                                 $plats = $1;
923                                 $algs = $2;
924                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
925                                 next;
926                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
927                                 $s = $1;
928                                 $k = "VARIABLE";
929                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
930                         } elsif (/TYPEDEF_\w+_OF/s) {
931                                 next;
932                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
933                                 $s = $1;                # a function name!
934                                 print STDERR "DEBUG: found function $s\n" if $debug;
935                         } elsif (/\(/ and not (/=/)) {
936                                 print STDERR "File $file: cannot parse: $_;\n";
937                                 next;
938                         } else {
939                                 next;
940                         }
941
942                         $syms{$s} = 1;
943                         $kind{$s} = $k;
944
945                         $p = $plats;
946                         $a = $algs;
947                         $a .= ",BF" if($s =~ /EVP_bf/);
948                         $a .= ",CAST" if($s =~ /EVP_cast/);
949                         $a .= ",DES" if($s =~ /EVP_des/);
950                         $a .= ",DSA" if($s =~ /EVP_dss/);
951                         $a .= ",IDEA" if($s =~ /EVP_idea/);
952                         $a .= ",MD2" if($s =~ /EVP_md2/);
953                         $a .= ",MD4" if($s =~ /EVP_md4/);
954                         $a .= ",MD5" if($s =~ /EVP_md5/);
955                         $a .= ",RC2" if($s =~ /EVP_rc2/);
956                         $a .= ",RC4" if($s =~ /EVP_rc4/);
957                         $a .= ",RC5" if($s =~ /EVP_rc5/);
958                         $a .= ",RIPEMD" if($s =~ /EVP_ripemd/);
959                         $a .= ",SHA" if($s =~ /EVP_sha/);
960                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
961                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
962                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
963                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
964
965                         $platform{$s} =
966                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
967                         $algorithm{$s} .= ','.$a;
968
969                         if (defined($variant{$s})) {
970                                 foreach $v (split /;/,$variant{$s}) {
971                                         (my $r, my $p, my $k) = split(/:/,$v);
972                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
973                                         $syms{$r} = 1;
974                                         if (!defined($k)) { $k = $kind{$s}; }
975                                         $kind{$r} = $k."(".$s.")";
976                                         $algorithm{$r} = $algorithm{$s};
977                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
978                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
979                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
980                                 }
981                         }
982                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
983                 }
984         }
985
986         # Prune the returned symbols
987
988         delete $syms{"bn_dump1"};
989         $platform{"BIO_s_log"} .= ",!WIN32,!WIN16,!macintosh";
990
991         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
992         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
993         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
994         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
995         $platform{"EVP_sha384"} = "!VMSVAX";
996         $platform{"EVP_sha512"} = "!VMSVAX";
997         $platform{"SHA384_Init"} = "!VMSVAX";
998         $platform{"SHA384_Transform"} = "!VMSVAX";
999         $platform{"SHA384_Update"} = "!VMSVAX";
1000         $platform{"SHA384_Final"} = "!VMSVAX";
1001         $platform{"SHA384"} = "!VMSVAX";
1002         $platform{"SHA512_Init"} = "!VMSVAX";
1003         $platform{"SHA512_Transform"} = "!VMSVAX";
1004         $platform{"SHA512_Update"} = "!VMSVAX";
1005         $platform{"SHA512_Final"} = "!VMSVAX";
1006         $platform{"SHA512"} = "!VMSVAX";
1007
1008
1009         # Info we know about
1010
1011         push @ret, map { $_."\\".&info_string($_,"EXIST",
1012                                               $platform{$_},
1013                                               $kind{$_},
1014                                               $algorithm{$_}) } keys %syms;
1015
1016         if (keys %unknown_algorithms) {
1017                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
1018                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
1019         }
1020         return(@ret);
1021 }
1022
1023 # Param: string of comma-separated platform-specs.
1024 sub reduce_platforms
1025 {
1026         my ($platforms) = @_;
1027         my $pl = defined($platforms) ? $platforms : "";
1028         my %p = map { $_ => 0 } split /,/, $pl;
1029         my $ret;
1030
1031         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1032             if $debug;
1033         # We do this, because if there's code like the following, it really
1034         # means the function exists in all cases and should therefore be
1035         # everywhere.  By increasing and decreasing, we may attain 0:
1036         #
1037         # ifndef WIN16
1038         #    int foo();
1039         # else
1040         #    int _fat foo();
1041         # endif
1042         foreach $platform (split /,/, $pl) {
1043                 if ($platform =~ /^!(.*)$/) {
1044                         $p{$1}--;
1045                 } else {
1046                         $p{$platform}++;
1047                 }
1048         }
1049         foreach $platform (keys %p) {
1050                 if ($p{$platform} == 0) { delete $p{$platform}; }
1051         }
1052
1053         delete $p{""};
1054
1055         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1056         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1057             if $debug;
1058         return $ret;
1059 }
1060
1061 sub info_string {
1062         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1063
1064         my %a = defined($algorithms) ?
1065             map { $_ => 1 } split /,/, $algorithms : ();
1066         my $k = defined($kind) ? $kind : "FUNCTION";
1067         my $ret;
1068         my $p = &reduce_platforms($platforms);
1069
1070         delete $a{""};
1071
1072         $ret = $exist;
1073         $ret .= ":".$p;
1074         $ret .= ":".$k;
1075         $ret .= ":".join(',',sort keys %a);
1076         return $ret;
1077 }
1078
1079 sub maybe_add_info {
1080         (my $name, *nums, my @symbols) = @_;
1081         my $sym;
1082         my $new_info = 0;
1083         my %syms=();
1084
1085         print STDERR "Updating $name info\n";
1086         foreach $sym (@symbols) {
1087                 (my $s, my $i) = split /\\/, $sym;
1088                 if (defined($nums{$s})) {
1089                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1090                         (my $n, my $dummy) = split /\\/, $nums{$s};
1091                         if (!defined($dummy) || $i ne $dummy) {
1092                                 $nums{$s} = $n."\\".$i;
1093                                 $new_info++;
1094                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1095                         }
1096                 }
1097                 $syms{$s} = 1;
1098         }
1099
1100         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1101         foreach $sym (@s) {
1102                 (my $n, my $i) = split /\\/, $nums{$sym};
1103                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1104                         $new_info++;
1105                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1106                 }
1107         }
1108         if ($new_info) {
1109                 print STDERR "$new_info old symbols got an info update\n";
1110                 if (!$do_rewrite) {
1111                         print STDERR "You should do a rewrite to fix this.\n";
1112                 }
1113         } else {
1114                 print STDERR "No old symbols needed info update\n";
1115         }
1116 }
1117
1118 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1119 sub is_valid
1120 {
1121         my ($keywords_txt,$platforms) = @_;
1122         my (@keywords) = split /,/,$keywords_txt;
1123         my ($falsesum, $truesum) = (0, 1);
1124
1125         # Param: one keyword
1126         sub recognise
1127         {
1128                 my ($keyword,$platforms) = @_;
1129
1130                 if ($platforms) {
1131                         # platforms
1132                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1133                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1134                         if ($keyword eq "VMS" && $VMS) { return 1; }
1135                         if ($keyword eq "WIN32" && $W32) { return 1; }
1136                         if ($keyword eq "WIN16" && $W16) { return 1; }
1137                         if ($keyword eq "WINNT" && $NT) { return 1; }
1138                         if ($keyword eq "OS2" && $OS2) { return 1; }
1139                         # Special platforms:
1140                         # EXPORT_VAR_AS_FUNCTION means that global variables
1141                         # will be represented as functions.  This currently
1142                         # only happens on VMS-VAX.
1143                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32 || $W16)) {
1144                                 return 1;
1145                         }
1146                         if ($keyword eq "OPENSSL_FIPSCAPABLE") {
1147                                 return 0;
1148                         }
1149                         if ($keyword eq "OPENSSL_FIPS" && $fips) {
1150                                 return 1;
1151                         }
1152                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1153                         return 0;
1154                 } else {
1155                         # algorithms
1156                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1157                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1158                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1159                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1160                         if ($keyword eq "DES" && $no_des) { return 0; }
1161                         if ($keyword eq "BF" && $no_bf) { return 0; }
1162                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1163                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1164                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1165                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1166                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1167                         if ($keyword eq "RIPEMD" && $no_ripemd) { return 0; }
1168                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1169                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1170                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1171                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1172                         if ($keyword eq "DH" && $no_dh) { return 0; }
1173                         if ($keyword eq "EC" && $no_ec) { return 0; }
1174                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1175                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1176                         if ($keyword eq "HMAC" && $no_hmac) { return 0; }
1177                         if ($keyword eq "AES" && $no_aes) { return 0; }
1178                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1179                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1180                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1181                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1182                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1183                         if ($keyword eq "ERR" && $no_err) { return 0; }
1184                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1185                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1186                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1187                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1188                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1189                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1190                         if ($keyword eq "HW" && $no_hw) { return 0; }
1191                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1192                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1193                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1194                         if ($keyword eq "RFC3779" && $no_rfc3779) { return 0; }
1195                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1196                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1197                         if ($keyword eq "CMS" && $no_cms) { return 0; }
1198                         if ($keyword eq "EC_NISTP_64_GCC_128" && $no_nistp_gcc)
1199                                         { return 0; }
1200                         if ($keyword eq "EC2M" && $no_ec2m) { return 0; }
1201                         if ($keyword eq "NEXTPROTONEG" && $no_nextprotoneg) { return 0; }
1202                         if ($keyword eq "SSL2" && $no_ssl2) { return 0; }
1203                         if ($keyword eq "CAPIENG" && $no_capieng) { return 0; }
1204                         if ($keyword eq "JPAKE" && $no_jpake) { return 0; }
1205                         if ($keyword eq "SRP" && $no_srp) { return 0; }
1206                         if ($keyword eq "SCTP" && $no_sctp) { return 0; }
1207                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1208
1209                         # Nothing recognise as true
1210                         return 1;
1211                 }
1212         }
1213
1214         foreach $k (@keywords) {
1215                 if ($k =~ /^!(.*)$/) {
1216                         $falsesum += &recognise($1,$platforms);
1217                 } else {
1218                         $truesum *= &recognise($k,$platforms);
1219                 }
1220         }
1221         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1222         return (!$falsesum) && $truesum;
1223 }
1224
1225 sub print_test_file
1226 {
1227         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1228         my $n = 1; my @e; my @r;
1229         my $sym; my $prev = ""; my $prefSSLeay;
1230
1231         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1232         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1233         @symbols=((sort @e),(sort @r));
1234
1235         foreach $sym (@symbols) {
1236                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1237                 my $v = 0;
1238                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1239                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1240                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1241                 if (!defined($nums{$s})) {
1242                         print STDERR "Warning: $s does not have a number assigned\n"
1243                             if(!$do_update);
1244                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1245                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1246                         if ($prev eq $s2) {
1247                                 print OUT "\t/* The following has already appeared previously */\n";
1248                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1249                         }
1250                         $prev = $s2;    # To warn about duplicates...
1251
1252                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1253                         if ($v) {
1254                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1255                         } else {
1256                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1257                         }
1258                 }
1259         }
1260 }
1261
1262 sub get_version {
1263    local *MF;
1264    my $v = '?';
1265    open MF, 'Makefile' or return $v;
1266    while (<MF>) {
1267      $v = $1, last if /^VERSION=(.*?)\s*$/;
1268    }
1269    close MF;
1270    return $v;
1271 }
1272
1273 sub print_def_file
1274 {
1275         (*OUT,my $name,*nums,my @symbols)=@_;
1276         my $n = 1; my @e; my @r; my @v; my $prev="";
1277         my $liboptions="";
1278         my $libname = $name;
1279         my $http_vendor = 'www.openssl.org/';
1280         my $version = get_version();
1281         my $what = "OpenSSL: implementation of Secure Socket Layer";
1282         my $description = "$what $version, $name - http://$http_vendor";
1283
1284         if ($W32)
1285                 { $libname.="32"; }
1286         elsif ($W16)
1287                 { $libname.="16"; }
1288         elsif ($OS2)
1289                 { # DLL names should not clash on the whole system.
1290                   # However, they should not have any particular relationship
1291                   # to the name of the static library.  Chose descriptive names
1292                   # (must be at most 8 chars).
1293                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1294                   $libname = $translate{$name} || $name;
1295                   $liboptions = <<EOO;
1296 INITINSTANCE
1297 DATA MULTIPLE NONSHARED
1298 EOO
1299                   # Vendor field can't contain colon, drat; so we omit http://
1300                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1301                 }
1302
1303         print OUT <<"EOF";
1304 ;
1305 ; Definition file for the DLL version of the $name library from OpenSSL
1306 ;
1307
1308 LIBRARY         $libname        $liboptions
1309
1310 EOF
1311
1312         if ($W16) {
1313                 print <<"EOF";
1314 CODE            PRELOAD MOVEABLE
1315 DATA            PRELOAD MOVEABLE SINGLE
1316
1317 EXETYPE         WINDOWS
1318
1319 HEAPSIZE        4096
1320 STACKSIZE       8192
1321
1322 EOF
1323         }
1324
1325         print "EXPORTS\n";
1326
1327         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1328         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1329         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1330         @symbols=((sort @e),(sort @r), (sort @v));
1331
1332
1333         foreach $sym (@symbols) {
1334                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1335                 my $v = 0;
1336                 $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1337                 if (!defined($nums{$s})) {
1338                         printf STDERR "Warning: $s does not have a number assigned\n"
1339                             if(!$do_update);
1340                 } else {
1341                         (my $n, my $dummy) = split /\\/, $nums{$s};
1342                         my %pf = ();
1343                         my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1344                         my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1345                         if (is_valid($p,1) && is_valid($a,0)) {
1346                                 my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1347                                 if ($prev eq $s2) {
1348                                         print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1349                                 }
1350                                 $prev = $s2;    # To warn about duplicates...
1351                                 if($v && !$OS2) {
1352                                         printf OUT "    %s%-39s @%-8d DATA\n",($W32)?"":"_",$s2,$n;
1353                                 } else {
1354                                         printf OUT "    %s%-39s @%d\n",($W32||$OS2)?"":"_",$s2,$n;
1355                                 }
1356                         }
1357                 }
1358         }
1359         printf OUT "\n";
1360 }
1361
1362 sub load_numbers
1363 {
1364         my($name)=@_;
1365         my(@a,%ret);
1366
1367         $max_num = 0;
1368         $num_noinfo = 0;
1369         $prev = "";
1370         $prev_cnt = 0;
1371
1372         open(IN,"<$name") || die "unable to open $name:$!\n";
1373         while (<IN>) {
1374                 chop;
1375                 s/#.*$//;
1376                 next if /^\s*$/;
1377                 @a=split;
1378                 if (defined $ret{$a[0]}) {
1379                         # This is actually perfectly OK
1380                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1381                 }
1382                 if ($max_num > $a[1]) {
1383                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1384                 }
1385                 elsif ($max_num == $a[1]) {
1386                         # This is actually perfectly OK
1387                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1388                         if ($a[0] eq $prev) {
1389                                 $prev_cnt++;
1390                                 $a[0] .= "{$prev_cnt}";
1391                         }
1392                 }
1393                 else {
1394                         $prev_cnt = 0;
1395                 }
1396                 if ($#a < 2) {
1397                         # Existence will be proven later, in do_defs
1398                         $ret{$a[0]}=$a[1];
1399                         $num_noinfo++;
1400                 } else {
1401                         $ret{$a[0]}=$a[1]."\\".$a[2]; # \\ is a special marker
1402                 }
1403                 $max_num = $a[1] if $a[1] > $max_num;
1404                 $prev=$a[0];
1405         }
1406         if ($num_noinfo) {
1407                 print STDERR "Warning: $num_noinfo symbols were without info.";
1408                 if ($do_rewrite) {
1409                         printf STDERR "  The rewrite will fix this.\n";
1410                 } else {
1411                         printf STDERR "  You should do a rewrite to fix this.\n";
1412                 }
1413         }
1414         close(IN);
1415         return(%ret);
1416 }
1417
1418 sub parse_number
1419 {
1420         (my $str, my $what) = @_;
1421         (my $n, my $i) = split(/\\/,$str);
1422         if ($what eq "n") {
1423                 return $n;
1424         } else {
1425                 return $i;
1426         }
1427 }
1428
1429 sub rewrite_numbers
1430 {
1431         (*OUT,$name,*nums,@symbols)=@_;
1432         my $thing;
1433
1434         print STDERR "Rewriting $name\n";
1435
1436         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1437         my $r; my %r; my %rsyms;
1438         foreach $r (@r) {
1439                 (my $s, my $i) = split /\\/, $r;
1440                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1441                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1442                 $r{$a} = $s."\\".$i;
1443                 $rsyms{$s} = 1;
1444         }
1445
1446         my %syms = ();
1447         foreach $_ (@symbols) {
1448                 (my $n, my $i) = split /\\/;
1449                 $syms{$n} = 1;
1450         }
1451
1452         my @s=sort {
1453             &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n")
1454             || $a cmp $b
1455         } keys %nums;
1456         foreach $sym (@s) {
1457                 (my $n, my $i) = split /\\/, $nums{$sym};
1458                 next if defined($i) && $i =~ /^.*?:.*?:\w+\(\w+\)/;
1459                 next if defined($rsyms{$sym});
1460                 print STDERR "DEBUG: rewrite_numbers for sym = ",$sym,": i = ",$i,", n = ",$n,", rsym{sym} = ",$rsyms{$sym},"syms{sym} = ",$syms{$sym},"\n" if $debug;
1461                 $i="NOEXIST::FUNCTION:"
1462                         if !defined($i) || $i eq "" || !defined($syms{$sym});
1463                 my $s2 = $sym;
1464                 $s2 =~ s/\{[0-9]+\}$//;
1465                 printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1466                 if (exists $r{$sym}) {
1467                         (my $s, $i) = split /\\/,$r{$sym};
1468                         my $s2 = $s;
1469                         $s2 =~ s/\{[0-9]+\}$//;
1470                         printf OUT "%s%-39s %d\t%s\n","",$s2,$n,$i;
1471                 }
1472         }
1473 }
1474
1475 sub update_numbers
1476 {
1477         (*OUT,$name,*nums,my $start_num, my @symbols)=@_;
1478         my $new_syms = 0;
1479
1480         print STDERR "Updating $name numbers\n";
1481
1482         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1483         my $r; my %r; my %rsyms;
1484         foreach $r (@r) {
1485                 (my $s, my $i) = split /\\/, $r;
1486                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1487                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1488                 $r{$a} = $s."\\".$i;
1489                 $rsyms{$s} = 1;
1490         }
1491
1492         foreach $sym (@symbols) {
1493                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1494                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1495                 next if defined($rsyms{$sym});
1496                 die "ERROR: Symbol $sym had no info attached to it."
1497                     if $i eq "";
1498                 next if $i =~ /OPENSSL_FIPSCAPABLE/;
1499                 if (!exists $nums{$s}) {
1500                         $new_syms++;
1501                         my $s2 = $s;
1502                         $s2 =~ s/\{[0-9]+\}$//;
1503                         printf OUT "%s%-39s %d\t%s\n","",$s2, ++$start_num,$i;
1504                         if (exists $r{$s}) {
1505                                 ($s, $i) = split /\\/,$r{$s};
1506                                 $s =~ s/\{[0-9]+\}$//;
1507                                 printf OUT "%s%-39s %d\t%s\n","",$s, $start_num,$i;
1508                         }
1509                 }
1510         }
1511         if($new_syms) {
1512                 print STDERR "$new_syms New symbols added\n";
1513         } else {
1514                 print STDERR "No New symbols Added\n";
1515         }
1516 }
1517
1518 sub check_existing
1519 {
1520         (*nums, my @symbols)=@_;
1521         my %existing; my @remaining;
1522         @remaining=();
1523         foreach $sym (@symbols) {
1524                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1525                 $existing{$s}=1;
1526         }
1527         foreach $sym (keys %nums) {
1528                 if (!exists $existing{$sym}) {
1529                         push @remaining, $sym;
1530                 }
1531         }
1532         if(@remaining) {
1533                 print STDERR "The following symbols do not seem to exist:\n";
1534                 foreach $sym (@remaining) {
1535                         print STDERR "\t",$sym,"\n";
1536                 }
1537         }
1538 }
1539