Stop symlinking, move files to intended directory
[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 # The format of these files is:
10 #
11 #       routine-name    nnnn    info
12 #
13 # and the "info" part is actually a colon-separated string of fields with
14 # the following meaning:
15 #
16 #       existence:platform:kind:algorithms
17 #
18 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
19 #   found somewhere in the source, 
20 # - "platforms" is empty if it exists on all platforms, otherwise it contains
21 #   comma-separated list of the platform, just as they are if the symbol exists
22 #   for those platforms, or prepended with a "!" if not.  This helps resolve
23 #   symbol name variants for platforms where the names are too long for the
24 #   compiler or linker, or if the systems is case insensitive and there is a
25 #   clash, or the symbol is implemented differently (see
26 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
27 #   in the file crypto/symhacks.h.
28 #   The semantics for the platforms is that every item is checked against the
29 #   environment.  For the negative items ("!FOO"), if any of them is false
30 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
31 #   used.  For the positive itms, if all of them are false in the environment,
32 #   the corresponding symbol can't be used.  Any combination of positive and
33 #   negative items are possible, and of course leave room for some redundancy.
34 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
35 # - "algorithms" is a comma-separated list of algorithm names.  This helps
36 #   exclude symbols that are part of an algorithm that some user wants to
37 #   exclude.
38 #
39
40 my $debug=0;
41
42 my $crypto_num= "util/libeay.num";
43 my $ssl_num=    "util/ssleay.num";
44 my $libname;
45
46 my $do_update = 0;
47 my $do_rewrite = 1;
48 my $do_crypto = 0;
49 my $do_ssl = 0;
50 my $do_ctest = 0;
51 my $do_ctestall = 0;
52 my $do_checkexist = 0;
53
54 my $VMSVAX=0;
55 my $VMSNonVAX=0;
56 my $VMS=0;
57 my $W32=0;
58 my $NT=0;
59 my $OS2=0;
60 # Set this to make typesafe STACK definitions appear in DEF
61 my $safe_stack_def = 0;
62
63 my @known_platforms = ( "__FreeBSD__", "PERL5",
64                         "EXPORT_VAR_AS_FUNCTION", "ZLIB",
65                         "OPENSSL_FIPS", "OPENSSL_FIPSCAPABLE" );
66 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
67 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
68                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
69                          "SHA256", "SHA512", "RMD160",
70                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "ECDH", "ECDSA", "EC2M",
71                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
72                          # EC_NISTP_64_GCC_128
73                          "EC_NISTP_64_GCC_128",
74                          # Envelope "algorithms"
75                          "EVP", "X509", "ASN1_TYPEDEFS",
76                          # Helper "algorithms"
77                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
78                          "LOCKING",
79                          # External "algorithms"
80                          "FP_API", "STDIO", "SOCK", "KRB5", "DGRAM",
81                          # Engines
82                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
83                          # TLS
84                          "TLSEXT", "PSK", "SRP", "HEARTBEATS",
85                          # CMS
86                          "CMS",
87                          # CryptoAPI Engine
88                          "CAPIENG",
89                          # SSL v3 method
90                          "SSL3_METHOD",
91                          # JPAKE
92                          "JPAKE",
93                          # NEXTPROTONEG
94                          "NEXTPROTONEG",
95                          # Deprecated functions
96                          "DEPRECATED",
97                          # SCTP
98                          "SCTP",
99                          # SRTP
100                          "SRTP",
101                          # SSL TRACE
102                          "SSL_TRACE",
103                          # Unit testing
104                          "UNIT_TEST",
105                          # OCB mode
106                          "OCB",
107                          # APPLINK (win build feature?)
108                          "APPLINK"
109                      );
110
111 my $options="";
112 open(IN,"<Makefile") || die "unable to open Makefile!\n";
113 while(<IN>) {
114     $options=$1 if (/^OPTIONS=(.*)$/);
115 }
116 close(IN);
117
118 # The following ciphers may be excluded (by Configure). This means functions
119 # defined with ifndef(NO_XXX) are not included in the .def file, and everything
120 # in directory xxx is ignored.
121 my $no_rc2; my $no_rc4; my $no_rc5; my $no_idea; my $no_des; my $no_bf;
122 my $no_cast; my $no_whirlpool; my $no_camellia; my $no_seed;
123 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
124 my $no_rsa; my $no_dsa; my $no_dh; my $no_aes; my $no_krb5;
125 my $no_ec; my $no_ecdsa; my $no_ecdh; my $no_engine; my $no_hw;
126 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
127 my $no_psk; my $no_tlsext; my $no_cms; my $no_capieng;
128 my $no_jpake; my $no_srp; my $no_ec2m; my $no_nistp_gcc; 
129 my $no_nextprotoneg; my $no_sctp; my $no_srtp; my $no_ssl_trace;
130 my $no_unit_test; my $no_ssl3_method; my $no_ocb;
131
132 my $fips;
133
134 my $zlib;
135
136
137 foreach (@ARGV, split(/ /, $options))
138         {
139         $debug=1 if $_ eq "debug";
140         $W32=1 if $_ eq "32";
141         die "win16 not supported" if $_ eq "16";
142         if($_ eq "NT") {
143                 $W32 = 1;
144                 $NT = 1;
145         }
146         if ($_ eq "VMS-VAX") {
147                 $VMS=1;
148                 $VMSVAX=1;
149         }
150         if ($_ eq "VMS-NonVAX") {
151                 $VMS=1;
152                 $VMSNonVAX=1;
153         }
154         $VMS=1 if $_ eq "VMS";
155         $OS2=1 if $_ eq "OS2";
156         $fips=1 if /^fips/;
157         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
158                          || $_ eq "enable-zlib-dynamic") {
159                 $zlib = 1;
160         }
161
162         $do_ssl=1 if $_ eq "ssleay";
163         if ($_ eq "ssl") {
164                 $do_ssl=1; 
165                 $libname=$_
166         }
167         $do_crypto=1 if $_ eq "libeay";
168         if ($_ eq "crypto") {
169                 $do_crypto=1;
170                 $libname=$_;
171         }
172         $no_static_engine=1 if $_ eq "no-static-engine";
173         $no_static_engine=0 if $_ eq "enable-static-engine";
174         $do_update=1 if $_ eq "update";
175         $do_rewrite=1 if $_ eq "rewrite";
176         $do_ctest=1 if $_ eq "ctest";
177         $do_ctestall=1 if $_ eq "ctestall";
178         $do_checkexist=1 if $_ eq "exist";
179         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
180
181         if    (/^no-rc2$/)      { $no_rc2=1; }
182         elsif (/^no-rc4$/)      { $no_rc4=1; }
183         elsif (/^no-rc5$/)      { $no_rc5=1; }
184         elsif (/^no-idea$/)     { $no_idea=1; }
185         elsif (/^no-des$/)      { $no_des=1; $no_mdc2=1; }
186         elsif (/^no-bf$/)       { $no_bf=1; }
187         elsif (/^no-cast$/)     { $no_cast=1; }
188         elsif (/^no-whirlpool$/)     { $no_whirlpool=1; }
189         elsif (/^no-md2$/)      { $no_md2=1; }
190         elsif (/^no-md4$/)      { $no_md4=1; }
191         elsif (/^no-md5$/)      { $no_md5=1; }
192         elsif (/^no-sha$/)      { $no_sha=1; }
193         elsif (/^no-ripemd$/)   { $no_ripemd=1; }
194         elsif (/^no-mdc2$/)     { $no_mdc2=1; }
195         elsif (/^no-rsa$/)      { $no_rsa=1; }
196         elsif (/^no-dsa$/)      { $no_dsa=1; }
197         elsif (/^no-dh$/)       { $no_dh=1; }
198         elsif (/^no-ec$/)       { $no_ec=1; }
199         elsif (/^no-ecdsa$/)    { $no_ecdsa=1; }
200         elsif (/^no-ecdh$/)     { $no_ecdh=1; }
201         elsif (/^no-aes$/)      { $no_aes=1; }
202         elsif (/^no-camellia$/) { $no_camellia=1; }
203         elsif (/^no-seed$/)     { $no_seed=1; }
204         elsif (/^no-evp$/)      { $no_evp=1; }
205         elsif (/^no-lhash$/)    { $no_lhash=1; }
206         elsif (/^no-stack$/)    { $no_stack=1; }
207         elsif (/^no-err$/)      { $no_err=1; }
208         elsif (/^no-buffer$/)   { $no_buffer=1; }
209         elsif (/^no-bio$/)      { $no_bio=1; }
210         #elsif (/^no-locking$/) { $no_locking=1; }
211         elsif (/^no-comp$/)     { $no_comp=1; }
212         elsif (/^no-dso$/)      { $no_dso=1; }
213         elsif (/^no-krb5$/)     { $no_krb5=1; }
214         elsif (/^no-engine$/)   { $no_engine=1; }
215         elsif (/^no-hw$/)       { $no_hw=1; }
216         elsif (/^no-gmp$/)      { $no_gmp=1; }
217         elsif (/^no-tlsext$/)   { $no_tlsext=1; }
218         elsif (/^no-cms$/)      { $no_cms=1; }
219         elsif (/^no-ec2m$/)     { $no_ec2m=1; }
220         elsif (/^no-ec-nistp224-64-gcc-128$/)   { $no_nistp_gcc=1; }
221         elsif (/^no-nextprotoneg$/)     { $no_nextprotoneg=1; }
222         elsif (/^no-ssl3-method$/) { $no_ssl3_method=1; }
223         elsif (/^no-ssl-trace$/) { $no_ssl_trace=1; }
224         elsif (/^no-capieng$/)  { $no_capieng=1; }
225         elsif (/^no-jpake$/)    { $no_jpake=1; }
226         elsif (/^no-srp$/)      { $no_srp=1; }
227         elsif (/^no-sctp$/)     { $no_sctp=1; }
228         elsif (/^no-srtp$/)     { $no_srtp=1; }
229         elsif (/^no-unit-test$/){ $no_unit_test=1; }
230         elsif (/^no-deprecated$/) { $no_deprecated=1; }
231         elsif (/^no-ocb/){ $no_ocb=1; }
232         }
233
234
235 if (!$libname) { 
236         if ($do_ssl) {
237                 $libname="SSLEAY";
238         }
239         if ($do_crypto) {
240                 $libname="LIBEAY";
241         }
242 }
243
244 # If no platform is given, assume WIN32
245 if ($W32 + $VMS + $OS2 == 0) {
246         $W32 = 1;
247 }
248
249 if (!$do_ssl && !$do_crypto)
250         {
251         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 ]\n";
252         exit(1);
253         }
254
255 %ssl_list=&load_numbers($ssl_num);
256 $max_ssl = $max_num;
257 %crypto_list=&load_numbers($crypto_num);
258 $max_crypto = $max_num;
259
260 my $ssl="include/openssl/ssl.h";
261 $ssl.=" include/openssl/kssl.h";
262 $ssl.=" include/openssl/tls1.h";
263 $ssl.=" include/openssl/srtp.h";
264
265 my $crypto ="include/openssl/crypto.h";
266 $crypto.=" crypto/cryptlib.h";
267 $crypto.=" crypto/o_dir.h";
268 $crypto.=" crypto/o_str.h";
269 $crypto.=" include/openssl/des.h" ; # unless $no_des;
270 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
271 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
272 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
273 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
274 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
275 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
276 $crypto.=" include/openssl/whrlpool.h" ;
277 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
278 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
279 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
280 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
281 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
282 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
283 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
284 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
285 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
286
287 $crypto.=" include/openssl/bn.h";
288 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
289 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
290 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
291 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
292 $crypto.=" include/openssl/ecdsa.h" ; # unless $no_ecdsa;
293 $crypto.=" include/openssl/ecdh.h" ; # unless $no_ecdh;
294 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
295 $crypto.=" include/openssl/cmac.h" ;
296
297 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
298 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
299 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
300 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
301 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
302 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
303 $crypto.=" include/openssl/conf.h";
304 $crypto.=" include/openssl/txt_db.h";
305
306 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
307 $crypto.=" include/openssl/objects.h";
308 $crypto.=" include/openssl/pem.h";
309 #$crypto.=" include/openssl/meth.h";
310 $crypto.=" include/openssl/asn1.h";
311 $crypto.=" include/openssl/asn1t.h";
312 $crypto.=" include/openssl/asn1_mac.h";
313 $crypto.=" include/openssl/err.h" ; # unless $no_err;
314 $crypto.=" include/openssl/pkcs7.h";
315 $crypto.=" include/openssl/pkcs12.h";
316 $crypto.=" include/openssl/x509.h";
317 $crypto.=" include/openssl/x509_vfy.h";
318 $crypto.=" include/openssl/x509v3.h";
319 $crypto.=" include/openssl/ts.h";
320 $crypto.=" include/openssl/rand.h";
321 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
322 $crypto.=" include/openssl/ocsp.h";
323 $crypto.=" include/openssl/ui.h";
324 $crypto.=" include/openssl/krb5_asn.h";
325 #$crypto.=" include/openssl/store.h";
326 $crypto.=" include/openssl/pqueue.h";
327 $crypto.=" include/openssl/cms.h";
328 $crypto.=" include/openssl/jpake.h";
329 $crypto.=" include/openssl/srp.h";
330 $crypto.=" include/openssl/modes.h";
331
332 my $symhacks="include/openssl/symhacks.h";
333
334 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
335 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
336
337 if ($do_update) {
338
339 if ($do_ssl == 1) {
340
341         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
342         if ($do_rewrite == 1) {
343                 open(OUT, ">$ssl_num");
344                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
345         } else {
346                 open(OUT, ">>$ssl_num");
347         }
348         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
349         close OUT;
350 }
351
352 if($do_crypto == 1) {
353
354         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
355         if ($do_rewrite == 1) {
356                 open(OUT, ">$crypto_num");
357                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
358         } else {
359                 open(OUT, ">>$crypto_num");
360         }
361         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
362         close OUT;
363
364
365 } elsif ($do_checkexist) {
366         &check_existing(*ssl_list, @ssl_symbols)
367                 if $do_ssl == 1;
368         &check_existing(*crypto_list, @crypto_symbols)
369                 if $do_crypto == 1;
370 } elsif ($do_ctest || $do_ctestall) {
371
372         print <<"EOF";
373
374 /* Test file to check all DEF file symbols are present by trying
375  * to link to all of them. This is *not* intended to be run!
376  */
377
378 int main()
379 {
380 EOF
381         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
382                 if $do_ssl == 1;
383
384         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
385                 if $do_crypto == 1;
386
387         print "}\n";
388
389 } else {
390
391         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
392                 if $do_ssl == 1;
393
394         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
395                 if $do_crypto == 1;
396
397 }
398
399
400 sub do_defs
401 {
402         my($name,$files,$symhacksfile)=@_;
403         my $file;
404         my @ret;
405         my %syms;
406         my %platform;           # For anything undefined, we assume ""
407         my %kind;               # For anything undefined, we assume "FUNCTION"
408         my %algorithm;          # For anything undefined, we assume ""
409         my %variant;
410         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
411                                 # is the same name as the original.
412         my $cpp;
413         my %unknown_algorithms = ();
414         my $parens = 0;
415
416         foreach $file (split(/\s+/,$symhacksfile." ".$files))
417                 {
418                 print STDERR "DEBUG: starting on $file:\n" if $debug;
419                 open(IN,"<$file") || die "unable to open $file:$!\n";
420                 my $line = "", my $def= "";
421                 my %tag = (
422                         (map { $_ => 0 } @known_platforms),
423                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
424                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
425                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
426                         NOPROTO         => 0,
427                         PERL5           => 0,
428                         _WINDLL         => 0,
429                         CONST_STRICT    => 0,
430                         TRUE            => 1,
431                 );
432                 my $symhacking = $file eq $symhacksfile;
433                 my @current_platforms = ();
434                 my @current_algorithms = ();
435
436                 # params: symbol, alias, platforms, kind
437                 # The reason to put this subroutine in a variable is that
438                 # it will otherwise create it's own, unshared, version of
439                 # %tag and %variant...
440                 my $make_variant = sub
441                 {
442                         my ($s, $a, $p, $k) = @_;
443                         my ($a1, $a2);
444
445                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
446                         if (defined($p))
447                         {
448                                 $a1 = join(",",$p,
449                                            grep(!/^$/,
450                                                 map { $tag{$_} == 1 ? $_ : "" }
451                                                 @known_platforms));
452                         }
453                         else
454                         {
455                                 $a1 = join(",",
456                                            grep(!/^$/,
457                                                 map { $tag{$_} == 1 ? $_ : "" }
458                                                 @known_platforms));
459                         }
460                         $a2 = join(",",
461                                    grep(!/^$/,
462                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
463                                         @known_ossl_platforms));
464                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
465                         if ($a1 eq "") { $a1 = $a2; }
466                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
467                         if ($a eq $s)
468                         {
469                                 if (!defined($variant_cnt{$s}))
470                                 {
471                                         $variant_cnt{$s} = 0;
472                                 }
473                                 $variant_cnt{$s}++;
474                                 $a .= "{$variant_cnt{$s}}";
475                         }
476                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
477                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
478                         if (!grep(/^$togrep$/,
479                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
480                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
481                                 $variant{$s} .= $toadd;
482                         }
483                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
484                 };
485
486                 print STDERR "DEBUG: parsing ----------\n" if $debug;
487                 while(<IN>) {
488                         if($parens > 0) {
489                                 #Inside a DECLARE_DEPRECATED
490                                 $stored_multiline .= $_;
491                                 chomp $stored_multiline;
492                                 print STDERR "DEBUG: Continuing multiline DEPRECATED: $stored_multiline\n" if $debug;
493                                 $parens = count_parens($stored_multiline);
494                                 if ($parens == 0) {
495                                         $stored_multiline =~ /^\s*DECLARE_DEPRECATED\s*\(\s*(\w*(\s|\*|\w)*)/;
496                                         $def .= "$1(void);";
497                                 }
498                                 next;
499                         }
500                         if (/\/\* Error codes for the \w+ functions\. \*\//)
501                                 {
502                                 undef @tag;
503                                 last;
504                                 }
505                         if ($line ne '') {
506                                 $_ = $line . $_;
507                                 $line = '';
508                         }
509
510                         if (/\\$/) {
511                                 chomp; # remove eol
512                                 chop; # remove ending backslash
513                                 $line = $_;
514                                 next;
515                         }
516
517                         if(/\/\*/) {
518                                 if (not /\*\//) {       # multiline comment...
519                                         $line = $_;     # ... just accumulate
520                                         next;
521                                 } else {
522                                         s/\/\*.*?\*\///gs;# wipe it
523                                 }
524                         }
525
526                         if ($cpp) {
527                                 $cpp++ if /^#\s*if/;
528                                 $cpp-- if /^#\s*endif/;
529                                 next;
530                         }
531                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
532
533                         s/{[^{}]*}//gs;                      # ignore {} blocks
534                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
535                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
536                         if (/^\#\s*ifndef\s+(.*)/) {
537                                 push(@tag,"-");
538                                 push(@tag,$1);
539                                 $tag{$1}=-1;
540                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
541                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
542                                 push(@tag,"-");
543                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
544                                         my $tmp_1 = $1;
545                                         my $tmp_;
546                                         foreach $tmp_ (split '\&\&',$tmp_1) {
547                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
548                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
549                                                 push(@tag,$1);
550                                                 $tag{$1}=-1;
551                                         }
552                                 } else {
553                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
554                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
555                                         push(@tag,$1);
556                                         $tag{$1}=-1;
557                                 }
558                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
559                                 push(@tag,"-");
560                                 push(@tag,$1);
561                                 $tag{$1}=1;
562                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
563                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
564                                 push(@tag,"-");
565                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
566                                         my $tmp_1 = $1;
567                                         my $tmp_;
568                                         foreach $tmp_ (split '\|\|',$tmp_1) {
569                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
570                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
571                                                 push(@tag,$1);
572                                                 $tag{$1}=1;
573                                         }
574                                 } else {
575                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
576                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
577                                         push(@tag,$1);
578                                         $tag{$1}=1;
579                                 }
580                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
581                                 my $tag_i = $#tag;
582                                 while($tag[$tag_i] ne "-") {
583                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
584                                                 $tag{$tag[$tag_i]}=2;
585                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
586                                         }
587                                         $tag_i--;
588                                 }
589                         } elsif (/^\#\s*endif/) {
590                                 my $tag_i = $#tag;
591                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
592                                         my $t=$tag[$tag_i];
593                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
594                                         if ($tag{$t}==2) {
595                                                 $tag{$t}=-1;
596                                         } else {
597                                                 $tag{$t}=0;
598                                         }
599                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
600                                         pop(@tag);
601                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
602                                                 $t=$1;
603                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
604                                                 $t=$1;
605                                         } else {
606                                                 $t="";
607                                         }
608                                         if ($t ne ""
609                                             && !grep(/^$t$/, @known_algorithms)) {
610                                                 $unknown_algorithms{$t} = 1;
611                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
612                                         }
613                                         $tag_i--;
614                                 }
615                                 pop(@tag);
616                         } elsif (/^\#\s*else/) {
617                                 my $tag_i = $#tag;
618                                 while($tag[$tag_i] ne "-") {
619                                         my $t=$tag[$tag_i];
620                                         $tag{$t}= -$tag{$t};
621                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
622                                         $tag_i--;
623                                 }
624                         } elsif (/^\#\s*if\s+1/) {
625                                 push(@tag,"-");
626                                 # Dummy tag
627                                 push(@tag,"TRUE");
628                                 $tag{"TRUE"}=1;
629                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
630                         } elsif (/^\#\s*if\s+0/) {
631                                 push(@tag,"-");
632                                 # Dummy tag
633                                 push(@tag,"TRUE");
634                                 $tag{"TRUE"}=-1;
635                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
636                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
637                                  && $symhacking && $tag{'TRUE'} != -1) {
638                                 # This is for aliasing.  When we find an alias,
639                                 # we have to invert
640                                 &$make_variant($1,$2);
641                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
642                         }
643                         if (/^\#/) {
644                                 @current_platforms =
645                                     grep(!/^$/,
646                                          map { $tag{$_} == 1 ? $_ :
647                                                    $tag{$_} == -1 ? "!".$_  : "" }
648                                          @known_platforms);
649                                 push @current_platforms
650                                     , grep(!/^$/,
651                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
652                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
653                                            @known_ossl_platforms);
654                                 @current_algorithms = ();
655                                 @current_algorithms =
656                                     grep(!/^$/,
657                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
658                                          @known_algorithms);
659                                 push @current_algorithms
660                                     , grep(!/^$/,
661                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
662                                          @known_algorithms);
663                                 $def .=
664                                     "#INFO:"
665                                         .join(',',@current_platforms).":"
666                                             .join(',',@current_algorithms).";";
667                                 next;
668                         }
669                         if ($tag{'TRUE'} != -1) {
670                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
671                                         next;
672                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
673                                         $def .= "int d2i_$3(void);";
674                                         $def .= "int i2d_$3(void);";
675                                         # Variant for platforms that do not
676                                         # have to access globale variables
677                                         # in shared libraries through functions
678                                         $def .=
679                                             "#INFO:"
680                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
681                                                     .join(',',@current_algorithms).";";
682                                         $def .= "OPENSSL_EXTERN int $2_it;";
683                                         $def .=
684                                             "#INFO:"
685                                                 .join(',',@current_platforms).":"
686                                                     .join(',',@current_algorithms).";";
687                                         # Variant for platforms that have to
688                                         # access globale variables in shared
689                                         # libraries through functions
690                                         &$make_variant("$2_it","$2_it",
691                                                       "EXPORT_VAR_AS_FUNCTION",
692                                                       "FUNCTION");
693                                         next;
694                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
695                                         $def .= "int d2i_$3(void);";
696                                         $def .= "int i2d_$3(void);";
697                                         $def .= "int $3_free(void);";
698                                         $def .= "int $3_new(void);";
699                                         # Variant for platforms that do not
700                                         # have to access globale variables
701                                         # in shared libraries through functions
702                                         $def .=
703                                             "#INFO:"
704                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
705                                                     .join(',',@current_algorithms).";";
706                                         $def .= "OPENSSL_EXTERN int $2_it;";
707                                         $def .=
708                                             "#INFO:"
709                                                 .join(',',@current_platforms).":"
710                                                     .join(',',@current_algorithms).";";
711                                         # Variant for platforms that have to
712                                         # access globale variables in shared
713                                         # libraries through functions
714                                         &$make_variant("$2_it","$2_it",
715                                                       "EXPORT_VAR_AS_FUNCTION",
716                                                       "FUNCTION");
717                                         next;
718                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
719                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
720                                         $def .= "int d2i_$1(void);";
721                                         $def .= "int i2d_$1(void);";
722                                         $def .= "int $1_free(void);";
723                                         $def .= "int $1_new(void);";
724                                         # Variant for platforms that do not
725                                         # have to access globale variables
726                                         # in shared libraries through functions
727                                         $def .=
728                                             "#INFO:"
729                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
730                                                     .join(',',@current_algorithms).";";
731                                         $def .= "OPENSSL_EXTERN int $1_it;";
732                                         $def .=
733                                             "#INFO:"
734                                                 .join(',',@current_platforms).":"
735                                                     .join(',',@current_algorithms).";";
736                                         # Variant for platforms that have to
737                                         # access globale variables in shared
738                                         # libraries through functions
739                                         &$make_variant("$1_it","$1_it",
740                                                       "EXPORT_VAR_AS_FUNCTION",
741                                                       "FUNCTION");
742                                         next;
743                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
744                                         $def .= "int d2i_$2(void);";
745                                         $def .= "int i2d_$2(void);";
746                                         # Variant for platforms that do not
747                                         # have to access globale variables
748                                         # in shared libraries through functions
749                                         $def .=
750                                             "#INFO:"
751                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
752                                                     .join(',',@current_algorithms).";";
753                                         $def .= "OPENSSL_EXTERN int $2_it;";
754                                         $def .=
755                                             "#INFO:"
756                                                 .join(',',@current_platforms).":"
757                                                     .join(',',@current_algorithms).";";
758                                         # Variant for platforms that have to
759                                         # access globale variables in shared
760                                         # libraries through functions
761                                         &$make_variant("$2_it","$2_it",
762                                                       "EXPORT_VAR_AS_FUNCTION",
763                                                       "FUNCTION");
764                                         next;
765                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
766                                         $def .= "int $1_free(void);";
767                                         $def .= "int $1_new(void);";
768                                         next;
769                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
770                                         $def .= "int d2i_$2(void);";
771                                         $def .= "int i2d_$2(void);";
772                                         $def .= "int $2_free(void);";
773                                         $def .= "int $2_new(void);";
774                                         # Variant for platforms that do not
775                                         # have to access globale variables
776                                         # in shared libraries through functions
777                                         $def .=
778                                             "#INFO:"
779                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
780                                                     .join(',',@current_algorithms).";";
781                                         $def .= "OPENSSL_EXTERN int $2_it;";
782                                         $def .=
783                                             "#INFO:"
784                                                 .join(',',@current_platforms).":"
785                                                     .join(',',@current_algorithms).";";
786                                         # Variant for platforms that have to
787                                         # access globale variables in shared
788                                         # libraries through functions
789                                         &$make_variant("$2_it","$2_it",
790                                                       "EXPORT_VAR_AS_FUNCTION",
791                                                       "FUNCTION");
792                                         next;
793                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
794                                         # Variant for platforms that do not
795                                         # have to access globale variables
796                                         # in shared libraries through functions
797                                         $def .=
798                                             "#INFO:"
799                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
800                                                     .join(',',@current_algorithms).";";
801                                         $def .= "OPENSSL_EXTERN int $1_it;";
802                                         $def .=
803                                             "#INFO:"
804                                                 .join(',',@current_platforms).":"
805                                                     .join(',',@current_algorithms).";";
806                                         # Variant for platforms that have to
807                                         # access globale variables in shared
808                                         # libraries through functions
809                                         &$make_variant("$1_it","$1_it",
810                                                       "EXPORT_VAR_AS_FUNCTION",
811                                                       "FUNCTION");
812                                         next;
813                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
814                                         $def .= "int i2d_$1_NDEF(void);";
815                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
816                                         next;
817                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
818                                         $def .= "int $1_print_ctx(void);";
819                                         next;
820                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
821                                         $def .= "int $2_print_ctx(void);";
822                                         next;
823                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
824                                         next;
825                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
826                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
827                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
828                                         $def .=
829                                             "#INFO:"
830                                                 .join(',',@current_platforms).":"
831                                                     .join(',',@current_algorithms).";";
832                                         $def .= "int PEM_read_$1(void);";
833                                         $def .= "int PEM_write_$1(void);";
834                                         $def .=
835                                             "#INFO:"
836                                                 .join(',',@current_platforms).":"
837                                                     .join(',',@current_algorithms).";";
838                                         # Things that are everywhere
839                                         $def .= "int PEM_read_bio_$1(void);";
840                                         $def .= "int PEM_write_bio_$1(void);";
841                                         next;
842                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
843                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
844                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
845                                         $def .=
846                                             "#INFO:"
847                                                 .join(',',@current_platforms).":"
848                                                     .join(',',@current_algorithms).";";
849                                         $def .= "int PEM_write_$1(void);";
850                                         $def .=
851                                             "#INFO:"
852                                                 .join(',',@current_platforms).":"
853                                                     .join(',',@current_algorithms).";";
854                                         # Things that are everywhere
855                                         $def .= "int PEM_write_bio_$1(void);";
856                                         next;
857                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
858                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
859                                         $def .=
860                                             "#INFO:"
861                                                 .join(',',@current_platforms).":"
862                                                     .join(',',@current_algorithms).";";
863                                         $def .= "int PEM_read_$1(void);";
864                                         $def .=
865                                             "#INFO:"
866                                                 .join(',',@current_platforms).":"
867                                                     .join(',',@current_algorithms).";";
868                                         # Things that are everywhere
869                                         $def .= "int PEM_read_bio_$1(void);";
870                                         next;
871                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
872                                         # Variant for platforms that do not
873                                         # have to access globale variables
874                                         # in shared libraries through functions
875                                         $def .=
876                                             "#INFO:"
877                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
878                                                     .join(',',@current_algorithms).";";
879                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
880                                         $def .=
881                                             "#INFO:"
882                                                 .join(',',@current_platforms).":"
883                                                     .join(',',@current_algorithms).";";
884                                         # Variant for platforms that have to
885                                         # access globale variables in shared
886                                         # libraries through functions
887                                         &$make_variant("_shadow_$2","_shadow_$2",
888                                                       "EXPORT_VAR_AS_FUNCTION",
889                                                       "FUNCTION");
890                                 } elsif (/^\s*DECLARE_DEPRECATED\s*\(\s*(\w*(\s|\*|\w)*)/) {
891                                         $parens = count_parens($_);
892                                         if ($parens == 0) {
893                                                 $def .= "$1(void);";
894                                         } else {
895                                                 $stored_multiline = $_;
896                                                 chomp $stored_multiline;
897                                                 print STDERR "DEBUG: Found multiline DEPRECATED starting with: $stored_multiline\n" if $debug;
898                                                 next;
899                                         }
900                                 } elsif ($tag{'CONST_STRICT'} != 1) {
901                                         if (/\{|\/\*|\([^\)]*$/) {
902                                                 $line = $_;
903                                         } else {
904                                                 $def .= $_;
905                                         }
906                                 }
907                         }
908                 }
909                 close(IN);
910
911                 my $algs;
912                 my $plays;
913
914                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
915                 foreach (split /;/, $def) {
916                         my $s; my $k = "FUNCTION"; my $p; my $a;
917                         s/^[\n\s]*//g;
918                         s/[\n\s]*$//g;
919                         next if(/\#undef/);
920                         next if(/typedef\W/);
921                         next if(/\#define/);
922
923                         # Reduce argument lists to empty ()
924                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
925                         while(/\(.*\)/s) {
926                                 s/\([^\(\)]+\)/\{\}/gs;
927                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
928                         }
929                         # pretend as we didn't use curly braces: {} -> ()
930                         s/\{\}/\(\)/gs;
931
932                         s/STACK_OF\(\)/void/gs;
933                         s/LHASH_OF\(\)/void/gs;
934
935                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
936                         if (/^\#INFO:([^:]*):(.*)$/) {
937                                 $plats = $1;
938                                 $algs = $2;
939                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
940                                 next;
941                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
942                                 $s = $1;
943                                 $k = "VARIABLE";
944                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
945                         } elsif (/TYPEDEF_\w+_OF/s) {
946                                 next;
947                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
948                                 $s = $1;                # a function name!
949                                 print STDERR "DEBUG: found function $s\n" if $debug;
950                         } elsif (/\(/ and not (/=/)) {
951                                 print STDERR "File $file: cannot parse: $_;\n";
952                                 next;
953                         } else {
954                                 next;
955                         }
956
957                         $syms{$s} = 1;
958                         $kind{$s} = $k;
959
960                         $p = $plats;
961                         $a = $algs;
962                         $a .= ",BF" if($s =~ /EVP_bf/);
963                         $a .= ",CAST" if($s =~ /EVP_cast/);
964                         $a .= ",DES" if($s =~ /EVP_des/);
965                         $a .= ",DSA" if($s =~ /EVP_dss/);
966                         $a .= ",IDEA" if($s =~ /EVP_idea/);
967                         $a .= ",MD2" if($s =~ /EVP_md2/);
968                         $a .= ",MD4" if($s =~ /EVP_md4/);
969                         $a .= ",MD5" if($s =~ /EVP_md5/);
970                         $a .= ",RC2" if($s =~ /EVP_rc2/);
971                         $a .= ",RC4" if($s =~ /EVP_rc4/);
972                         $a .= ",RC5" if($s =~ /EVP_rc5/);
973                         $a .= ",RMD160" if($s =~ /EVP_ripemd/);
974                         $a .= ",RSA" if($s =~ /EVP_(Open|Seal)(Final|Init)/);
975                         $a .= ",RSA" if($s =~ /PEM_Seal(Final|Init|Update)/);
976                         $a .= ",RSA" if($s =~ /RSAPrivateKey/);
977                         $a .= ",RSA" if($s =~ /SSLv23?_((client|server)_)?method/);
978
979                         $platform{$s} =
980                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
981                         $algorithm{$s} .= ','.$a;
982
983                         if (defined($variant{$s})) {
984                                 foreach $v (split /;/,$variant{$s}) {
985                                         (my $r, my $p, my $k) = split(/:/,$v);
986                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
987                                         $syms{$r} = 1;
988                                         if (!defined($k)) { $k = $kind{$s}; }
989                                         $kind{$r} = $k."(".$s.")";
990                                         $algorithm{$r} = $algorithm{$s};
991                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
992                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
993                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
994                                 }
995                         }
996                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
997                 }
998         }
999
1000         # Prune the returned symbols
1001
1002         delete $syms{"bn_dump1"};
1003         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
1004
1005         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
1006         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
1007         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
1008         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
1009         $platform{"EVP_sha384"} = "!VMSVAX";
1010         $platform{"EVP_sha512"} = "!VMSVAX";
1011         $platform{"SHA384_Init"} = "!VMSVAX";
1012         $platform{"SHA384_Transform"} = "!VMSVAX";
1013         $platform{"SHA384_Update"} = "!VMSVAX";
1014         $platform{"SHA384_Final"} = "!VMSVAX";
1015         $platform{"SHA384"} = "!VMSVAX";
1016         $platform{"SHA512_Init"} = "!VMSVAX";
1017         $platform{"SHA512_Transform"} = "!VMSVAX";
1018         $platform{"SHA512_Update"} = "!VMSVAX";
1019         $platform{"SHA512_Final"} = "!VMSVAX";
1020         $platform{"SHA512"} = "!VMSVAX";
1021
1022
1023         # Info we know about
1024
1025         push @ret, map { $_."\\".&info_string($_,"EXIST",
1026                                               $platform{$_},
1027                                               $kind{$_},
1028                                               $algorithm{$_}) } keys %syms;
1029
1030         if (keys %unknown_algorithms) {
1031                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
1032                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
1033         }
1034         return(@ret);
1035 }
1036
1037 # Param: string of comma-separated platform-specs.
1038 sub reduce_platforms
1039 {
1040         my ($platforms) = @_;
1041         my $pl = defined($platforms) ? $platforms : "";
1042         my %p = map { $_ => 0 } split /,/, $pl;
1043         my $ret;
1044
1045         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1046             if $debug;
1047         # We do this, because if there's code like the following, it really
1048         # means the function exists in all cases and should therefore be
1049         # everywhere.  By increasing and decreasing, we may attain 0:
1050         #
1051         # ifndef WIN16
1052         #    int foo();
1053         # else
1054         #    int _fat foo();
1055         # endif
1056         foreach $platform (split /,/, $pl) {
1057                 if ($platform =~ /^!(.*)$/) {
1058                         $p{$1}--;
1059                 } else {
1060                         $p{$platform}++;
1061                 }
1062         }
1063         foreach $platform (keys %p) {
1064                 if ($p{$platform} == 0) { delete $p{$platform}; }
1065         }
1066
1067         delete $p{""};
1068
1069         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1070         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1071             if $debug;
1072         return $ret;
1073 }
1074
1075 sub info_string {
1076         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1077
1078         my %a = defined($algorithms) ?
1079             map { $_ => 1 } split /,/, $algorithms : ();
1080         my $k = defined($kind) ? $kind : "FUNCTION";
1081         my $ret;
1082         my $p = &reduce_platforms($platforms);
1083
1084         delete $a{""};
1085
1086         $ret = $exist;
1087         $ret .= ":".$p;
1088         $ret .= ":".$k;
1089         $ret .= ":".join(',',sort keys %a);
1090         return $ret;
1091 }
1092
1093 sub maybe_add_info {
1094         (my $name, *nums, my @symbols) = @_;
1095         my $sym;
1096         my $new_info = 0;
1097         my %syms=();
1098
1099         print STDERR "Updating $name info\n";
1100         foreach $sym (@symbols) {
1101                 (my $s, my $i) = split /\\/, $sym;
1102                 if (defined($nums{$s})) {
1103                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1104                         (my $n, my $dummy) = split /\\/, $nums{$s};
1105                         if (!defined($dummy) || $i ne $dummy) {
1106                                 $nums{$s} = $n."\\".$i;
1107                                 $new_info++;
1108                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1109                         }
1110                 }
1111                 $syms{$s} = 1;
1112         }
1113
1114         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1115         foreach $sym (@s) {
1116                 (my $n, my $i) = split /\\/, $nums{$sym};
1117                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1118                         $new_info++;
1119                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1120                 }
1121         }
1122         if ($new_info) {
1123                 print STDERR "$new_info old symbols got an info update\n";
1124                 if (!$do_rewrite) {
1125                         print STDERR "You should do a rewrite to fix this.\n";
1126                 }
1127         } else {
1128                 print STDERR "No old symbols needed info update\n";
1129         }
1130 }
1131
1132 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1133 sub is_valid
1134 {
1135         my ($keywords_txt,$platforms) = @_;
1136         my (@keywords) = split /,/,$keywords_txt;
1137         my ($falsesum, $truesum) = (0, 1);
1138
1139         # Param: one keyword
1140         sub recognise
1141         {
1142                 my ($keyword,$platforms) = @_;
1143
1144                 if ($platforms) {
1145                         # platforms
1146                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1147                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1148                         if ($keyword eq "VMS" && $VMS) { return 1; }
1149                         if ($keyword eq "WIN32" && $W32) { return 1; }
1150                         if ($keyword eq "WINNT" && $NT) { return 1; }
1151                         if ($keyword eq "OS2" && $OS2) { return 1; }
1152                         # Special platforms:
1153                         # EXPORT_VAR_AS_FUNCTION means that global variables
1154                         # will be represented as functions.  This currently
1155                         # only happens on VMS-VAX.
1156                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1157                                 return 1;
1158                         }
1159                         if ($keyword eq "OPENSSL_FIPSCAPABLE") {
1160                                 return 0;
1161                         }
1162                         if ($keyword eq "OPENSSL_FIPS" && $fips) {
1163                                 return 1;
1164                         }
1165                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1166                         return 0;
1167                 } else {
1168                         # algorithms
1169                         if ($keyword eq "RC2" && $no_rc2) { return 0; }
1170                         if ($keyword eq "RC4" && $no_rc4) { return 0; }
1171                         if ($keyword eq "RC5" && $no_rc5) { return 0; }
1172                         if ($keyword eq "IDEA" && $no_idea) { return 0; }
1173                         if ($keyword eq "DES" && $no_des) { return 0; }
1174                         if ($keyword eq "BF" && $no_bf) { return 0; }
1175                         if ($keyword eq "CAST" && $no_cast) { return 0; }
1176                         if ($keyword eq "MD2" && $no_md2) { return 0; }
1177                         if ($keyword eq "MD4" && $no_md4) { return 0; }
1178                         if ($keyword eq "MD5" && $no_md5) { return 0; }
1179                         if ($keyword eq "SHA" && $no_sha) { return 0; }
1180                         if ($keyword eq "RMD160" && $no_ripemd) { return 0; }
1181                         if ($keyword eq "MDC2" && $no_mdc2) { return 0; }
1182                         if ($keyword eq "WHIRLPOOL" && $no_whirlpool) { return 0; }
1183                         if ($keyword eq "RSA" && $no_rsa) { return 0; }
1184                         if ($keyword eq "DSA" && $no_dsa) { return 0; }
1185                         if ($keyword eq "DH" && $no_dh) { return 0; }
1186                         if ($keyword eq "EC" && $no_ec) { return 0; }
1187                         if ($keyword eq "ECDSA" && $no_ecdsa) { return 0; }
1188                         if ($keyword eq "ECDH" && $no_ecdh) { return 0; }
1189                         if ($keyword eq "AES" && $no_aes) { return 0; }
1190                         if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
1191                         if ($keyword eq "SEED" && $no_seed) { return 0; }
1192                         if ($keyword eq "EVP" && $no_evp) { return 0; }
1193                         if ($keyword eq "LHASH" && $no_lhash) { return 0; }
1194                         if ($keyword eq "STACK" && $no_stack) { return 0; }
1195                         if ($keyword eq "ERR" && $no_err) { return 0; }
1196                         if ($keyword eq "BUFFER" && $no_buffer) { return 0; }
1197                         if ($keyword eq "BIO" && $no_bio) { return 0; }
1198                         if ($keyword eq "COMP" && $no_comp) { return 0; }
1199                         if ($keyword eq "DSO" && $no_dso) { return 0; }
1200                         if ($keyword eq "KRB5" && $no_krb5) { return 0; }
1201                         if ($keyword eq "ENGINE" && $no_engine) { return 0; }
1202                         if ($keyword eq "HW" && $no_hw) { return 0; }
1203                         if ($keyword eq "FP_API" && $no_fp_api) { return 0; }
1204                         if ($keyword eq "STATIC_ENGINE" && $no_static_engine) { return 0; }
1205                         if ($keyword eq "GMP" && $no_gmp) { return 0; }
1206                         if ($keyword eq "TLSEXT" && $no_tlsext) { return 0; }
1207                         if ($keyword eq "PSK" && $no_psk) { return 0; }
1208                         if ($keyword eq "CMS" && $no_cms) { return 0; }
1209                         if ($keyword eq "EC_NISTP_64_GCC_128" && $no_nistp_gcc)
1210                                         { return 0; }
1211                         if ($keyword eq "EC2M" && $no_ec2m) { return 0; }
1212                         if ($keyword eq "NEXTPROTONEG" && $no_nextprotoneg) { return 0; }
1213                         if ($keyword eq "SSL3_METHOD" && $no_ssl3_method) { return 0; }
1214                         if ($keyword eq "SSL_TRACE" && $no_ssl_trace) { return 0; }
1215                         if ($keyword eq "CAPIENG" && $no_capieng) { return 0; }
1216                         if ($keyword eq "JPAKE" && $no_jpake) { return 0; }
1217                         if ($keyword eq "SRP" && $no_srp) { return 0; }
1218                         if ($keyword eq "SCTP" && $no_sctp) { return 0; }
1219                         if ($keyword eq "SRTP" && $no_srtp) { return 0; }
1220                         if ($keyword eq "UNIT_TEST" && $no_unit_test) { return 0; }
1221                         if ($keyword eq "DEPRECATED" && $no_deprecated) { return 0; }
1222                         if ($keyword eq "OCB" && $no_ocb) { return 0; }
1223
1224                         # Nothing recognise as true
1225                         return 1;
1226                 }
1227         }
1228
1229         foreach $k (@keywords) {
1230                 if ($k =~ /^!(.*)$/) {
1231                         $falsesum += &recognise($1,$platforms);
1232                 } else {
1233                         $truesum *= &recognise($k,$platforms);
1234                 }
1235         }
1236         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1237         return (!$falsesum) && $truesum;
1238 }
1239
1240 sub print_test_file
1241 {
1242         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1243         my $n = 1; my @e; my @r;
1244         my $sym; my $prev = ""; my $prefSSLeay;
1245
1246         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1247         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1248         @symbols=((sort @e),(sort @r));
1249
1250         foreach $sym (@symbols) {
1251                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1252                 my $v = 0;
1253                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1254                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1255                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1256                 if (!defined($nums{$s})) {
1257                         print STDERR "Warning: $s does not have a number assigned\n"
1258                             if(!$do_update);
1259                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1260                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1261                         if ($prev eq $s2) {
1262                                 print OUT "\t/* The following has already appeared previously */\n";
1263                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1264                         }
1265                         $prev = $s2;    # To warn about duplicates...
1266
1267                         ($nn,$ni)=($nums{$s2} =~ /^(.*?)\\(.*)$/);
1268                         if ($v) {
1269                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1270                         } else {
1271                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1272                         }
1273                 }
1274         }
1275 }
1276
1277 sub get_version {
1278    local *MF;
1279    my $v = '?';
1280    open MF, 'Makefile' or return $v;
1281    while (<MF>) {
1282      $v = $1, last if /^VERSION=(.*?)\s*$/;
1283    }
1284    close MF;
1285    return $v;
1286 }
1287
1288 sub print_def_file
1289 {
1290         (*OUT,my $name,*nums,my @symbols)=@_;
1291         my $n = 1; my @e; my @r; my @v; my $prev="";
1292         my $liboptions="";
1293         my $libname = $name;
1294         my $http_vendor = 'www.openssl.org/';
1295         my $version = get_version();
1296         my $what = "OpenSSL: implementation of Secure Socket Layer";
1297         my $description = "$what $version, $name - http://$http_vendor";
1298
1299         if ($W32)
1300                 { $libname.="32"; }
1301         elsif ($OS2)
1302                 { # DLL names should not clash on the whole system.
1303                   # However, they should not have any particular relationship
1304                   # to the name of the static library.  Chose descriptive names
1305                   # (must be at most 8 chars).
1306                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1307                   $libname = $translate{$name} || $name;
1308                   $liboptions = <<EOO;
1309 INITINSTANCE
1310 DATA MULTIPLE NONSHARED
1311 EOO
1312                   # Vendor field can't contain colon, drat; so we omit http://
1313                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1314                 }
1315
1316         print OUT <<"EOF";
1317 ;
1318 ; Definition file for the DLL version of the $name library from OpenSSL
1319 ;
1320
1321 LIBRARY         $libname        $liboptions
1322
1323 EOF
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
1540 sub count_parens
1541 {
1542         my $line = shift(@_);
1543
1544         my $open = $line =~ tr/\(//;
1545         my $close = $line =~ tr/\)//;
1546
1547         return $open - $close;
1548 }
1549