Disable some algorithms by default
[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    vers    info
12 #
13 # The "nnnn" and "vers" fields are the numeric id and version for the symbol
14 # respectively. The "info" part is actually a colon-separated string of fields
15 # with the following meaning:
16 #
17 #       existence:platform:kind:algorithms
18 #
19 # - "existence" can be "EXIST" or "NOEXIST" depending on if the symbol is
20 #   found somewhere in the source, 
21 # - "platforms" is empty if it exists on all platforms, otherwise it contains
22 #   comma-separated list of the platform, just as they are if the symbol exists
23 #   for those platforms, or prepended with a "!" if not.  This helps resolve
24 #   symbol name variants for platforms where the names are too long for the
25 #   compiler or linker, or if the systems is case insensitive and there is a
26 #   clash, or the symbol is implemented differently (see
27 #   EXPORT_VAR_AS_FUNCTION).  This script assumes renaming of symbols is found
28 #   in the file crypto/symhacks.h.
29 #   The semantics for the platforms is that every item is checked against the
30 #   environment.  For the negative items ("!FOO"), if any of them is false
31 #   (i.e. "FOO" is true) in the environment, the corresponding symbol can't be
32 #   used.  For the positive itms, if all of them are false in the environment,
33 #   the corresponding symbol can't be used.  Any combination of positive and
34 #   negative items are possible, and of course leave room for some redundancy.
35 # - "kind" is "FUNCTION" or "VARIABLE".  The meaning of that is obvious.
36 # - "algorithms" is a comma-separated list of algorithm names.  This helps
37 #   exclude symbols that are part of an algorithm that some user wants to
38 #   exclude.
39 #
40
41 my $debug=0;
42
43 my $crypto_num= "util/libeay.num";
44 my $ssl_num=    "util/ssleay.num";
45 my $libname;
46
47 my $do_update = 0;
48 my $do_rewrite = 1;
49 my $do_crypto = 0;
50 my $do_ssl = 0;
51 my $do_ctest = 0;
52 my $do_ctestall = 0;
53 my $do_checkexist = 0;
54
55 my $VMSVAX=0;
56 my $VMSNonVAX=0;
57 my $VMS=0;
58 my $W32=0;
59 my $NT=0;
60 my $OS2=0;
61 my $linux=0;
62 # Set this to make typesafe STACK definitions appear in DEF
63 my $safe_stack_def = 0;
64
65 my @known_platforms = ( "__FreeBSD__", "PERL5",
66                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
67                         );
68 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
69 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
70                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
71                          "SHA256", "SHA512", "RMD160",
72                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
73                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
74                          "SCRYPT", "CHACHA", "POLY1305",
75                          # EC_NISTP_64_GCC_128
76                          "EC_NISTP_64_GCC_128",
77                          # Envelope "algorithms"
78                          "EVP", "X509", "ASN1_TYPEDEFS",
79                          # Helper "algorithms"
80                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
81                          "LOCKING",
82                          # External "algorithms"
83                          "FP_API", "STDIO", "SOCK", "DGRAM",
84                          "CRYPTO_MDEBUG",
85                          # Engines
86                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
87                          # X.509v3 Signed Certificate Timestamps
88                          "SCT",
89                          # RFC3779
90                          "RFC3779",
91                          # TLS
92                          "PSK", "SRP", "HEARTBEATS",
93                          # CMS
94                          "CMS",
95                          # CryptoAPI Engine
96                          "CAPIENG",
97                          # SSL v3 method
98                          "SSL3_METHOD",
99                          # JPAKE
100                          "JPAKE",
101                          # NEXTPROTONEG
102                          "NEXTPROTONEG",
103                          # Deprecated functions
104                          "DEPRECATEDIN_0_9_8",
105                          "DEPRECATEDIN_1_0_0",
106                          "DEPRECATEDIN_1_1_0",
107                          # SCTP
108                          "SCTP",
109                          # SRTP
110                          "SRTP",
111                          # SSL TRACE
112                          "SSL_TRACE",
113                          # Unit testing
114                          "UNIT_TEST",
115                          # OCB mode
116                          "OCB",
117                          # APPLINK (win build feature?)
118                          "APPLINK"
119                      );
120
121 my %disabled_algorithms;
122
123 foreach (@known_algorithms) {
124     $disabled_algorithms{$_} = 0;
125 }
126 # disabled by default
127 $disabled_algorithms{"CRYPTO_MDEBUG"} = 1;
128 $disabled_algorithms{"STATIC_ENGINE"} = 1;
129
130 my $options="";
131 open(IN,"<Makefile") || die "unable to open Makefile!\n";
132 while(<IN>) {
133     $options=$1 if (/^OPTIONS=(.*)$/);
134 }
135 close(IN);
136
137 my $zlib;
138
139 foreach (@ARGV, split(/ /, $options))
140         {
141         $debug=1 if $_ eq "debug";
142         $W32=1 if $_ eq "32";
143         die "win16 not supported" if $_ eq "16";
144         if($_ eq "NT") {
145                 $W32 = 1;
146                 $NT = 1;
147         }
148         if ($_ eq "VMS-VAX") {
149                 $VMS=1;
150                 $VMSVAX=1;
151         }
152         if ($_ eq "VMS-NonVAX") {
153                 $VMS=1;
154                 $VMSNonVAX=1;
155         }
156         if ($_ eq "linux") {
157                 $linux=1;
158         }
159         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
160         $OS2=1 if $_ eq "OS2";
161         if ($_ eq "zlib" || $_ eq "enable-zlib" || $_ eq "zlib-dynamic"
162                          || $_ eq "enable-zlib-dynamic") {
163                 $zlib = 1;
164         }
165
166         $do_ssl=1 if $_ eq "ssleay";
167         if ($_ eq "ssl") {
168                 $do_ssl=1; 
169                 $libname=$_
170         }
171         $do_crypto=1 if $_ eq "libeay";
172         if ($_ eq "crypto") {
173                 $do_crypto=1;
174                 $libname=$_;
175         }
176         $do_update=1 if $_ eq "update";
177         $do_rewrite=1 if $_ eq "rewrite";
178         $do_ctest=1 if $_ eq "ctest";
179         $do_ctestall=1 if $_ eq "ctestall";
180         $do_checkexist=1 if $_ eq "exist";
181         #$safe_stack_def=1 if $_ eq "-DDEBUG_SAFESTACK";
182         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
183                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
184                 foreach (keys %disabled_algorithms) {
185                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
186                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
187                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
188                         }
189                 }
190         }
191         if (/^no-deprecated$/) {
192                 foreach (keys %disabled_algorithms) {
193                         if (/^DEPRECATEDIN_/) {
194                                 $disabled_algorithms{$_} = 1;
195                         }
196                 }
197         }
198         elsif (/^(enable|disable|no)-(.*)$/) {
199                 my $alg = uc $2;
200         $alg =~ tr/-/_/;
201                 if (exists $disabled_algorithms{$alg}) {
202                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
203                 }
204         }
205
206         }
207
208 if (!$libname) { 
209         if ($do_ssl) {
210                 $libname="SSLEAY";
211         }
212         if ($do_crypto) {
213                 $libname="LIBEAY";
214         }
215 }
216
217 # If no platform is given, assume WIN32
218 if ($W32 + $VMS + $OS2 + $linux == 0) {
219         $W32 = 1;
220 }
221 die "Please, only one platform at a time"
222     if ($W32 + $VMS + $OS2 + $linux > 1);
223
224 if (!$do_ssl && !$do_crypto)
225         {
226         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
227         exit(1);
228         }
229
230 %ssl_list=&load_numbers($ssl_num);
231 $max_ssl = $max_num;
232 %crypto_list=&load_numbers($crypto_num);
233 $max_crypto = $max_num;
234
235 my $ssl="include/openssl/ssl.h";
236 $ssl.=" include/openssl/tls1.h";
237 $ssl.=" include/openssl/srtp.h";
238
239 my $crypto ="include/openssl/crypto.h";
240 $crypto.=" crypto/include/internal/cryptlib.h";
241 $crypto.=" crypto/include/internal/chacha.h"; # unless $no_chacha;
242 $crypto.=" crypto/include/internal/poly1305.h"; # unless $no_poly1305;
243 $crypto.=" include/internal/o_dir.h";
244 $crypto.=" include/internal/o_str.h";
245 $crypto.=" include/openssl/des.h" ; # unless $no_des;
246 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
247 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
248 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
249 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
250 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
251 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
252 $crypto.=" include/openssl/whrlpool.h" ;
253 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
254 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
255 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
256 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
257 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
258 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
259 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
260 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
261 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
262
263 $crypto.=" include/openssl/bn.h";
264 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
265 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
266 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
267 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
268 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
269 $crypto.=" include/openssl/cmac.h" ;
270
271 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
272 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
273 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
274 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
275 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
276 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
277 $crypto.=" include/openssl/conf.h";
278 $crypto.=" include/openssl/txt_db.h";
279
280 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
281 $crypto.=" include/openssl/objects.h";
282 $crypto.=" include/openssl/pem.h";
283 #$crypto.=" include/openssl/meth.h";
284 $crypto.=" include/openssl/asn1.h";
285 $crypto.=" include/openssl/asn1t.h";
286 $crypto.=" include/openssl/err.h" ; # unless $no_err;
287 $crypto.=" include/openssl/pkcs7.h";
288 $crypto.=" include/openssl/pkcs12.h";
289 $crypto.=" include/openssl/x509.h";
290 $crypto.=" include/openssl/x509_vfy.h";
291 $crypto.=" include/openssl/x509v3.h";
292 $crypto.=" include/openssl/ts.h";
293 $crypto.=" include/openssl/rand.h";
294 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
295 $crypto.=" include/openssl/ocsp.h";
296 $crypto.=" include/openssl/ui.h";
297 #$crypto.=" include/openssl/store.h";
298 $crypto.=" include/openssl/pqueue.h";
299 $crypto.=" include/openssl/cms.h";
300 $crypto.=" include/openssl/jpake.h";
301 $crypto.=" include/openssl/srp.h";
302 $crypto.=" include/openssl/modes.h";
303 $crypto.=" include/openssl/async.h";
304
305 my $symhacks="include/openssl/symhacks.h";
306
307 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
308 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
309
310 if ($do_update) {
311
312 if ($do_ssl == 1) {
313
314         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
315         if ($do_rewrite == 1) {
316                 open(OUT, ">$ssl_num");
317                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
318         } else {
319                 open(OUT, ">>$ssl_num");
320         }
321         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
322         close OUT;
323 }
324
325 if($do_crypto == 1) {
326
327         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
328         if ($do_rewrite == 1) {
329                 open(OUT, ">$crypto_num");
330                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
331         } else {
332                 open(OUT, ">>$crypto_num");
333         }
334         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
335         close OUT;
336
337
338 } elsif ($do_checkexist) {
339         &check_existing(*ssl_list, @ssl_symbols)
340                 if $do_ssl == 1;
341         &check_existing(*crypto_list, @crypto_symbols)
342                 if $do_crypto == 1;
343 } elsif ($do_ctest || $do_ctestall) {
344
345         print <<"EOF";
346
347 /* Test file to check all DEF file symbols are present by trying
348  * to link to all of them. This is *not* intended to be run!
349  */
350
351 int main()
352 {
353 EOF
354         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
355                 if $do_ssl == 1;
356
357         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
358                 if $do_crypto == 1;
359
360         print "}\n";
361
362 } else {
363
364         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
365                 if $do_ssl == 1;
366
367         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
368                 if $do_crypto == 1;
369
370 }
371
372
373 sub do_defs
374 {
375         my($name,$files,$symhacksfile)=@_;
376         my $file;
377         my @ret;
378         my %syms;
379         my %platform;           # For anything undefined, we assume ""
380         my %kind;               # For anything undefined, we assume "FUNCTION"
381         my %algorithm;          # For anything undefined, we assume ""
382         my %variant;
383         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
384                                 # is the same name as the original.
385         my $cpp;
386         my %unknown_algorithms = ();
387         my $parens = 0;
388
389         foreach $file (split(/\s+/,$symhacksfile." ".$files))
390                 {
391                 print STDERR "DEBUG: starting on $file:\n" if $debug;
392                 open(IN,"<$file") || die "unable to open $file:$!\n";
393                 my $line = "", my $def= "";
394                 my %tag = (
395                         (map { $_ => 0 } @known_platforms),
396                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
397                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
398                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
399                         NOPROTO         => 0,
400                         PERL5           => 0,
401                         _WINDLL         => 0,
402                         CONST_STRICT    => 0,
403                         TRUE            => 1,
404                 );
405                 my $symhacking = $file eq $symhacksfile;
406                 my @current_platforms = ();
407                 my @current_algorithms = ();
408
409                 # params: symbol, alias, platforms, kind
410                 # The reason to put this subroutine in a variable is that
411                 # it will otherwise create it's own, unshared, version of
412                 # %tag and %variant...
413                 my $make_variant = sub
414                 {
415                         my ($s, $a, $p, $k) = @_;
416                         my ($a1, $a2);
417
418                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
419                         if (defined($p))
420                         {
421                                 $a1 = join(",",$p,
422                                            grep(!/^$/,
423                                                 map { $tag{$_} == 1 ? $_ : "" }
424                                                 @known_platforms));
425                         }
426                         else
427                         {
428                                 $a1 = join(",",
429                                            grep(!/^$/,
430                                                 map { $tag{$_} == 1 ? $_ : "" }
431                                                 @known_platforms));
432                         }
433                         $a2 = join(",",
434                                    grep(!/^$/,
435                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
436                                         @known_ossl_platforms));
437                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
438                         if ($a1 eq "") { $a1 = $a2; }
439                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
440                         if ($a eq $s)
441                         {
442                                 if (!defined($variant_cnt{$s}))
443                                 {
444                                         $variant_cnt{$s} = 0;
445                                 }
446                                 $variant_cnt{$s}++;
447                                 $a .= "{$variant_cnt{$s}}";
448                         }
449                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
450                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
451                         if (!grep(/^$togrep$/,
452                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
453                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
454                                 $variant{$s} .= $toadd;
455                         }
456                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
457                 };
458
459                 print STDERR "DEBUG: parsing ----------\n" if $debug;
460                 while(<IN>) {
461                         if($parens > 0) {
462                                 #Inside a DEPRECATEDIN
463                                 $stored_multiline .= $_;
464                                 chomp $stored_multiline;
465                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
466                                 $parens = count_parens($stored_multiline);
467                                 if ($parens == 0) {
468                                         $def .= do_deprecated($stored_multiline,
469                                                         \@current_platforms,
470                                                         \@current_algorithms);
471                                 }
472                                 next;
473                         }
474                         if (/\/\* Error codes for the \w+ functions\. \*\//)
475                                 {
476                                 undef @tag;
477                                 last;
478                                 }
479                         if ($line ne '') {
480                                 $_ = $line . $_;
481                                 $line = '';
482                         }
483
484                         if (/\\$/) {
485                                 chomp; # remove eol
486                                 chop; # remove ending backslash
487                                 $line = $_;
488                                 next;
489                         }
490
491                         if(/\/\*/) {
492                                 if (not /\*\//) {       # multiline comment...
493                                         $line = $_;     # ... just accumulate
494                                         next;
495                                 } else {
496                                         s/\/\*.*?\*\///gs;# wipe it
497                                 }
498                         }
499
500                         if ($cpp) {
501                                 $cpp++ if /^#\s*if/;
502                                 $cpp-- if /^#\s*endif/;
503                                 next;
504                         }
505                         $cpp = 1 if /^#.*ifdef.*cplusplus/;
506
507                         s/{[^{}]*}//gs;                      # ignore {} blocks
508                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
509                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
510                         if (/^\#\s*ifndef\s+(.*)/) {
511                                 push(@tag,"-");
512                                 push(@tag,$1);
513                                 $tag{$1}=-1;
514                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
515                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
516                                 push(@tag,"-");
517                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
518                                         my $tmp_1 = $1;
519                                         my $tmp_;
520                                         foreach $tmp_ (split '\&\&',$tmp_1) {
521                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
522                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
523                                                 push(@tag,$1);
524                                                 $tag{$1}=-1;
525                                         }
526                                 } else {
527                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
528                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
529                                         push(@tag,$1);
530                                         $tag{$1}=-1;
531                                 }
532                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
533                                 push(@tag,"-");
534                                 push(@tag,$1);
535                                 $tag{$1}=1;
536                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
537                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
538                                 push(@tag,"-");
539                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
540                                         my $tmp_1 = $1;
541                                         my $tmp_;
542                                         foreach $tmp_ (split '\|\|',$tmp_1) {
543                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
544                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
545                                                 push(@tag,$1);
546                                                 $tag{$1}=1;
547                                         }
548                                 } else {
549                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
550                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
551                                         push(@tag,$1);
552                                         $tag{$1}=1;
553                                 }
554                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
555                                 my $tag_i = $#tag;
556                                 while($tag[$tag_i] ne "-") {
557                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
558                                                 $tag{$tag[$tag_i]}=2;
559                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
560                                         }
561                                         $tag_i--;
562                                 }
563                         } elsif (/^\#\s*endif/) {
564                                 my $tag_i = $#tag;
565                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
566                                         my $t=$tag[$tag_i];
567                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
568                                         if ($tag{$t}==2) {
569                                                 $tag{$t}=-1;
570                                         } else {
571                                                 $tag{$t}=0;
572                                         }
573                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
574                                         pop(@tag);
575                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
576                                                 $t=$1;
577                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
578                                                 $t=$1;
579                                         } else {
580                                                 $t="";
581                                         }
582                                         if ($t ne ""
583                                             && !grep(/^$t$/, @known_algorithms)) {
584                                                 $unknown_algorithms{$t} = 1;
585                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
586                                         }
587                                         $tag_i--;
588                                 }
589                                 pop(@tag);
590                         } elsif (/^\#\s*else/) {
591                                 my $tag_i = $#tag;
592                                 while($tag[$tag_i] ne "-") {
593                                         my $t=$tag[$tag_i];
594                                         $tag{$t}= -$tag{$t};
595                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
596                                         $tag_i--;
597                                 }
598                         } elsif (/^\#\s*if\s+1/) {
599                                 push(@tag,"-");
600                                 # Dummy tag
601                                 push(@tag,"TRUE");
602                                 $tag{"TRUE"}=1;
603                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
604                         } elsif (/^\#\s*if\s+0/) {
605                                 push(@tag,"-");
606                                 # Dummy tag
607                                 push(@tag,"TRUE");
608                                 $tag{"TRUE"}=-1;
609                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
610                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
611                                  && $symhacking && $tag{'TRUE'} != -1) {
612                                 # This is for aliasing.  When we find an alias,
613                                 # we have to invert
614                                 &$make_variant($1,$2);
615                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
616                         }
617                         if (/^\#/) {
618                                 @current_platforms =
619                                     grep(!/^$/,
620                                          map { $tag{$_} == 1 ? $_ :
621                                                    $tag{$_} == -1 ? "!".$_  : "" }
622                                          @known_platforms);
623                                 push @current_platforms
624                                     , grep(!/^$/,
625                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
626                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
627                                            @known_ossl_platforms);
628                                 @current_algorithms = ();
629                                 @current_algorithms =
630                                     grep(!/^$/,
631                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
632                                          @known_algorithms);
633                                 push @current_algorithms
634                                     , grep(!/^$/,
635                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
636                                          @known_algorithms);
637                                 $def .=
638                                     "#INFO:"
639                                         .join(',',@current_platforms).":"
640                                             .join(',',@current_algorithms).";";
641                                 next;
642                         }
643                         if ($tag{'TRUE'} != -1) {
644                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
645                                         next;
646                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
647                                         $def .= "int d2i_$3(void);";
648                                         $def .= "int i2d_$3(void);";
649                                         # Variant for platforms that do not
650                                         # have to access globale variables
651                                         # in shared libraries through functions
652                                         $def .=
653                                             "#INFO:"
654                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
655                                                     .join(',',@current_algorithms).";";
656                                         $def .= "OPENSSL_EXTERN int $2_it;";
657                                         $def .=
658                                             "#INFO:"
659                                                 .join(',',@current_platforms).":"
660                                                     .join(',',@current_algorithms).";";
661                                         # Variant for platforms that have to
662                                         # access globale variables in shared
663                                         # libraries through functions
664                                         &$make_variant("$2_it","$2_it",
665                                                       "EXPORT_VAR_AS_FUNCTION",
666                                                       "FUNCTION");
667                                         next;
668                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
669                                         $def .= "int d2i_$3(void);";
670                                         $def .= "int i2d_$3(void);";
671                                         $def .= "int $3_free(void);";
672                                         $def .= "int $3_new(void);";
673                                         # Variant for platforms that do not
674                                         # have to access globale variables
675                                         # in shared libraries through functions
676                                         $def .=
677                                             "#INFO:"
678                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
679                                                     .join(',',@current_algorithms).";";
680                                         $def .= "OPENSSL_EXTERN int $2_it;";
681                                         $def .=
682                                             "#INFO:"
683                                                 .join(',',@current_platforms).":"
684                                                     .join(',',@current_algorithms).";";
685                                         # Variant for platforms that have to
686                                         # access globale variables in shared
687                                         # libraries through functions
688                                         &$make_variant("$2_it","$2_it",
689                                                       "EXPORT_VAR_AS_FUNCTION",
690                                                       "FUNCTION");
691                                         next;
692                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
693                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
694                                         $def .= "int d2i_$1(void);";
695                                         $def .= "int i2d_$1(void);";
696                                         $def .= "int $1_free(void);";
697                                         $def .= "int $1_new(void);";
698                                         # Variant for platforms that do not
699                                         # have to access globale variables
700                                         # in shared libraries through functions
701                                         $def .=
702                                             "#INFO:"
703                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
704                                                     .join(',',@current_algorithms).";";
705                                         $def .= "OPENSSL_EXTERN int $1_it;";
706                                         $def .=
707                                             "#INFO:"
708                                                 .join(',',@current_platforms).":"
709                                                     .join(',',@current_algorithms).";";
710                                         # Variant for platforms that have to
711                                         # access globale variables in shared
712                                         # libraries through functions
713                                         &$make_variant("$1_it","$1_it",
714                                                       "EXPORT_VAR_AS_FUNCTION",
715                                                       "FUNCTION");
716                                         next;
717                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
718                                         $def .= "int d2i_$2(void);";
719                                         $def .= "int i2d_$2(void);";
720                                         # Variant for platforms that do not
721                                         # have to access globale variables
722                                         # in shared libraries through functions
723                                         $def .=
724                                             "#INFO:"
725                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
726                                                     .join(',',@current_algorithms).";";
727                                         $def .= "OPENSSL_EXTERN int $2_it;";
728                                         $def .=
729                                             "#INFO:"
730                                                 .join(',',@current_platforms).":"
731                                                     .join(',',@current_algorithms).";";
732                                         # Variant for platforms that have to
733                                         # access globale variables in shared
734                                         # libraries through functions
735                                         &$make_variant("$2_it","$2_it",
736                                                       "EXPORT_VAR_AS_FUNCTION",
737                                                       "FUNCTION");
738                                         next;
739                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
740                                         $def .= "int $1_free(void);";
741                                         $def .= "int $1_new(void);";
742                                         next;
743                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
744                                         $def .= "int d2i_$2(void);";
745                                         $def .= "int i2d_$2(void);";
746                                         $def .= "int $2_free(void);";
747                                         $def .= "int $2_new(void);";
748                                         # Variant for platforms that do not
749                                         # have to access globale variables
750                                         # in shared libraries through functions
751                                         $def .=
752                                             "#INFO:"
753                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
754                                                     .join(',',@current_algorithms).";";
755                                         $def .= "OPENSSL_EXTERN int $2_it;";
756                                         $def .=
757                                             "#INFO:"
758                                                 .join(',',@current_platforms).":"
759                                                     .join(',',@current_algorithms).";";
760                                         # Variant for platforms that have to
761                                         # access globale variables in shared
762                                         # libraries through functions
763                                         &$make_variant("$2_it","$2_it",
764                                                       "EXPORT_VAR_AS_FUNCTION",
765                                                       "FUNCTION");
766                                         next;
767                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
768                                         # Variant for platforms that do not
769                                         # have to access globale variables
770                                         # in shared libraries through functions
771                                         $def .=
772                                             "#INFO:"
773                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
774                                                     .join(',',@current_algorithms).";";
775                                         $def .= "OPENSSL_EXTERN int $1_it;";
776                                         $def .=
777                                             "#INFO:"
778                                                 .join(',',@current_platforms).":"
779                                                     .join(',',@current_algorithms).";";
780                                         # Variant for platforms that have to
781                                         # access globale variables in shared
782                                         # libraries through functions
783                                         &$make_variant("$1_it","$1_it",
784                                                       "EXPORT_VAR_AS_FUNCTION",
785                                                       "FUNCTION");
786                                         next;
787                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
788                                         $def .= "int i2d_$1_NDEF(void);";
789                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
790                                         next;
791                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
792                                         $def .= "int $1_print_ctx(void);";
793                                         next;
794                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
795                                         $def .= "int $2_print_ctx(void);";
796                                         next;
797                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
798                                         next;
799                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
800                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
801                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
802                                         $def .=
803                                             "#INFO:"
804                                                 .join(',',@current_platforms).":"
805                                                     .join(',',@current_algorithms).";";
806                                         $def .= "int PEM_read_$1(void);";
807                                         $def .= "int PEM_write_$1(void);";
808                                         $def .=
809                                             "#INFO:"
810                                                 .join(',',@current_platforms).":"
811                                                     .join(',',@current_algorithms).";";
812                                         # Things that are everywhere
813                                         $def .= "int PEM_read_bio_$1(void);";
814                                         $def .= "int PEM_write_bio_$1(void);";
815                                         next;
816                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
817                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
818                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
819                                         $def .=
820                                             "#INFO:"
821                                                 .join(',',@current_platforms).":"
822                                                     .join(',',@current_algorithms).";";
823                                         $def .= "int PEM_write_$1(void);";
824                                         $def .=
825                                             "#INFO:"
826                                                 .join(',',@current_platforms).":"
827                                                     .join(',',@current_algorithms).";";
828                                         # Things that are everywhere
829                                         $def .= "int PEM_write_bio_$1(void);";
830                                         next;
831                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
832                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
833                                         $def .=
834                                             "#INFO:"
835                                                 .join(',',@current_platforms).":"
836                                                     .join(',',@current_algorithms).";";
837                                         $def .= "int PEM_read_$1(void);";
838                                         $def .=
839                                             "#INFO:"
840                                                 .join(',',@current_platforms).":"
841                                                     .join(',',@current_algorithms).";";
842                                         # Things that are everywhere
843                                         $def .= "int PEM_read_bio_$1(void);";
844                                         next;
845                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
846                                         # Variant for platforms that do not
847                                         # have to access globale variables
848                                         # in shared libraries through functions
849                                         $def .=
850                                             "#INFO:"
851                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
852                                                     .join(',',@current_algorithms).";";
853                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
854                                         $def .=
855                                             "#INFO:"
856                                                 .join(',',@current_platforms).":"
857                                                     .join(',',@current_algorithms).";";
858                                         # Variant for platforms that have to
859                                         # access globale variables in shared
860                                         # libraries through functions
861                                         &$make_variant("_shadow_$2","_shadow_$2",
862                                                       "EXPORT_VAR_AS_FUNCTION",
863                                                       "FUNCTION");
864                                 } elsif (/^\s*DEPRECATEDIN/) {
865                                         $parens = count_parens($_);
866                                         if ($parens == 0) {
867                                                 $def .= do_deprecated($_,
868                                                         \@current_platforms,
869                                                         \@current_algorithms);
870                                         } else {
871                                                 $stored_multiline = $_;
872                                                 chomp $stored_multiline;
873                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
874                                                 next;
875                                         }
876                                 } elsif ($tag{'CONST_STRICT'} != 1) {
877                                         if (/\{|\/\*|\([^\)]*$/) {
878                                                 $line = $_;
879                                         } else {
880                                                 $def .= $_;
881                                         }
882                                 }
883                         }
884                 }
885                 close(IN);
886
887                 my $algs;
888                 my $plays;
889
890                 print STDERR "DEBUG: postprocessing ----------\n" if $debug;
891                 foreach (split /;/, $def) {
892                         my $s; my $k = "FUNCTION"; my $p; my $a;
893                         s/^[\n\s]*//g;
894                         s/[\n\s]*$//g;
895                         next if(/\#undef/);
896                         next if(/typedef\W/);
897                         next if(/\#define/);
898
899                         # Reduce argument lists to empty ()
900                         # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
901                         while(/\(.*\)/s) {
902                                 s/\([^\(\)]+\)/\{\}/gs;
903                                 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs;    #(*f{}) -> f
904                         }
905                         # pretend as we didn't use curly braces: {} -> ()
906                         s/\{\}/\(\)/gs;
907
908                         s/STACK_OF\(\)/void/gs;
909                         s/LHASH_OF\(\)/void/gs;
910
911                         print STDERR "DEBUG: \$_ = \"$_\"\n" if $debug;
912                         if (/^\#INFO:([^:]*):(.*)$/) {
913                                 $plats = $1;
914                                 $algs = $2;
915                                 print STDERR "DEBUG: found info on platforms ($plats) and algorithms ($algs)\n" if $debug;
916                                 next;
917                         } elsif (/^\s*OPENSSL_EXTERN\s.*?(\w+(\{[0-9]+\})?)(\[[0-9]*\])*\s*$/) {
918                                 $s = $1;
919                                 $k = "VARIABLE";
920                                 print STDERR "DEBUG: found external variable $s\n" if $debug;
921                         } elsif (/TYPEDEF_\w+_OF/s) {
922                                 next;
923                         } elsif (/(\w+)\s*\(\).*/s) {   # first token prior [first] () is
924                                 $s = $1;                # a function name!
925                                 print STDERR "DEBUG: found function $s\n" if $debug;
926                         } elsif (/\(/ and not (/=/)) {
927                                 print STDERR "File $file: cannot parse: $_;\n";
928                                 next;
929                         } else {
930                                 next;
931                         }
932
933                         $syms{$s} = 1;
934                         $kind{$s} = $k;
935
936                         $p = $plats;
937                         $a = $algs;
938
939                         $platform{$s} =
940                             &reduce_platforms((defined($platform{$s})?$platform{$s}.',':"").$p);
941                         $algorithm{$s} .= ','.$a;
942
943                         if (defined($variant{$s})) {
944                                 foreach $v (split /;/,$variant{$s}) {
945                                         (my $r, my $p, my $k) = split(/:/,$v);
946                                         my $ip = join ',',map({ /^!(.*)$/ ? $1 : "!".$_ } split /,/, $p);
947                                         $syms{$r} = 1;
948                                         if (!defined($k)) { $k = $kind{$s}; }
949                                         $kind{$r} = $k."(".$s.")";
950                                         $algorithm{$r} = $algorithm{$s};
951                                         $platform{$r} = &reduce_platforms($platform{$s}.",".$p.",".$p);
952                                         $platform{$s} = &reduce_platforms($platform{$s}.','.$ip.','.$ip);
953                                         print STDERR "DEBUG: \$variant{\"$s\"} = ",$v,"; \$r = $r; \$p = ",$platform{$r},"; \$a = ",$algorithm{$r},"; \$kind = ",$kind{$r},"\n" if $debug;
954                                 }
955                         }
956                         print STDERR "DEBUG: \$s = $s; \$p = ",$platform{$s},"; \$a = ",$algorithm{$s},"; \$kind = ",$kind{$s},"\n" if $debug;
957                 }
958         }
959
960         # Prune the returned symbols
961
962         delete $syms{"bn_dump1"};
963         $platform{"BIO_s_log"} .= ",!WIN32,!macintosh";
964
965         $platform{"PEM_read_NS_CERT_SEQ"} = "VMS";
966         $platform{"PEM_write_NS_CERT_SEQ"} = "VMS";
967         $platform{"PEM_read_P8_PRIV_KEY_INFO"} = "VMS";
968         $platform{"PEM_write_P8_PRIV_KEY_INFO"} = "VMS";
969         $platform{"EVP_sha384"} = "!VMSVAX";
970         $platform{"EVP_sha512"} = "!VMSVAX";
971         $platform{"SHA384_Init"} = "!VMSVAX";
972         $platform{"SHA384_Transform"} = "!VMSVAX";
973         $platform{"SHA384_Update"} = "!VMSVAX";
974         $platform{"SHA384_Final"} = "!VMSVAX";
975         $platform{"SHA384"} = "!VMSVAX";
976         $platform{"SHA512_Init"} = "!VMSVAX";
977         $platform{"SHA512_Transform"} = "!VMSVAX";
978         $platform{"SHA512_Update"} = "!VMSVAX";
979         $platform{"SHA512_Final"} = "!VMSVAX";
980         $platform{"SHA512"} = "!VMSVAX";
981
982
983         # Info we know about
984
985         push @ret, map { $_."\\".&info_string($_,"EXIST",
986                                               $platform{$_},
987                                               $kind{$_},
988                                               $algorithm{$_}) } keys %syms;
989
990         if (keys %unknown_algorithms) {
991                 print STDERR "WARNING: mkdef.pl doesn't know the following algorithms:\n";
992                 print STDERR "\t",join("\n\t",keys %unknown_algorithms),"\n";
993         }
994         return(@ret);
995 }
996
997 # Param: string of comma-separated platform-specs.
998 sub reduce_platforms
999 {
1000         my ($platforms) = @_;
1001         my $pl = defined($platforms) ? $platforms : "";
1002         my %p = map { $_ => 0 } split /,/, $pl;
1003         my $ret;
1004
1005         print STDERR "DEBUG: Entered reduce_platforms with \"$platforms\"\n"
1006             if $debug;
1007         # We do this, because if there's code like the following, it really
1008         # means the function exists in all cases and should therefore be
1009         # everywhere.  By increasing and decreasing, we may attain 0:
1010         #
1011         # ifndef WIN16
1012         #    int foo();
1013         # else
1014         #    int _fat foo();
1015         # endif
1016         foreach $platform (split /,/, $pl) {
1017                 if ($platform =~ /^!(.*)$/) {
1018                         $p{$1}--;
1019                 } else {
1020                         $p{$platform}++;
1021                 }
1022         }
1023         foreach $platform (keys %p) {
1024                 if ($p{$platform} == 0) { delete $p{$platform}; }
1025         }
1026
1027         delete $p{""};
1028
1029         $ret = join(',',sort(map { $p{$_} < 0 ? "!".$_ : $_ } keys %p));
1030         print STDERR "DEBUG: Exiting reduce_platforms with \"$ret\"\n"
1031             if $debug;
1032         return $ret;
1033 }
1034
1035 sub info_string {
1036         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1037
1038         my %a = defined($algorithms) ?
1039             map { $_ => 1 } split /,/, $algorithms : ();
1040         my $k = defined($kind) ? $kind : "FUNCTION";
1041         my $ret;
1042         my $p = &reduce_platforms($platforms);
1043
1044         delete $a{""};
1045
1046         $ret = $exist;
1047         $ret .= ":".$p;
1048         $ret .= ":".$k;
1049         $ret .= ":".join(',',sort keys %a);
1050         return $ret;
1051 }
1052
1053 sub maybe_add_info {
1054         (my $name, *nums, my @symbols) = @_;
1055         my $sym;
1056         my $new_info = 0;
1057         my %syms=();
1058
1059         print STDERR "Updating $name info\n";
1060         foreach $sym (@symbols) {
1061                 (my $s, my $i) = split /\\/, $sym;
1062                 if (defined($nums{$s})) {
1063                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1064                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1065                         if (!defined($dummy) || $i ne $dummy) {
1066                                 $nums{$s} = $n."\\".$vers."\\".$i;
1067                                 $new_info++;
1068                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1069                         }
1070                 }
1071                 $syms{$s} = 1;
1072         }
1073
1074         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1075         foreach $sym (@s) {
1076                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1077                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1078                         $new_info++;
1079                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1080                 }
1081         }
1082         if ($new_info) {
1083                 print STDERR "$new_info old symbols got an info update\n";
1084                 if (!$do_rewrite) {
1085                         print STDERR "You should do a rewrite to fix this.\n";
1086                 }
1087         } else {
1088                 print STDERR "No old symbols needed info update\n";
1089         }
1090 }
1091
1092 # Param: string of comma-separated keywords, each possibly prefixed with a "!"
1093 sub is_valid
1094 {
1095         my ($keywords_txt,$platforms) = @_;
1096         my (@keywords) = split /,/,$keywords_txt;
1097         my ($falsesum, $truesum) = (0, 1);
1098
1099         # Param: one keyword
1100         sub recognise
1101         {
1102                 my ($keyword,$platforms) = @_;
1103
1104                 if ($platforms) {
1105                         # platforms
1106                         if ($keyword eq "VMSVAX" && $VMSVAX) { return 1; }
1107                         if ($keyword eq "VMSNonVAX" && $VMSNonVAX) { return 1; }
1108                         if ($keyword eq "VMS" && $VMS) { return 1; }
1109                         if ($keyword eq "WIN32" && $W32) { return 1; }
1110                         if ($keyword eq "WINNT" && $NT) { return 1; }
1111                         if ($keyword eq "OS2" && $OS2) { return 1; }
1112                         # Special platforms:
1113                         # EXPORT_VAR_AS_FUNCTION means that global variables
1114                         # will be represented as functions.  This currently
1115                         # only happens on VMS-VAX.
1116                         if ($keyword eq "EXPORT_VAR_AS_FUNCTION" && ($VMSVAX || $W32)) {
1117                                 return 1;
1118                         }
1119                         if ($keyword eq "ZLIB" && $zlib) { return 1; }
1120                         return 0;
1121                 } else {
1122                         # algorithms
1123                         if ($disabled_algorithms{$keyword} == 1) { return 0;}
1124
1125                         # Nothing recognise as true
1126                         return 1;
1127                 }
1128         }
1129
1130         foreach $k (@keywords) {
1131                 if ($k =~ /^!(.*)$/) {
1132                         $falsesum += &recognise($1,$platforms);
1133                 } else {
1134                         $truesum *= &recognise($k,$platforms);
1135                 }
1136         }
1137         print STDERR "DEBUG: [",$#keywords,",",$#keywords < 0,"] is_valid($keywords_txt) => (\!$falsesum) && $truesum = ",(!$falsesum) && $truesum,"\n" if $debug;
1138         return (!$falsesum) && $truesum;
1139 }
1140
1141 sub print_test_file
1142 {
1143         (*OUT,my $name,*nums,my $testall,my @symbols)=@_;
1144         my $n = 1; my @e; my @r;
1145         my $sym; my $prev = ""; my $prefSSLeay;
1146
1147         (@e)=grep(/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1148         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:.*/ && !/^SSLeay(\{[0-9]+\})?\\.*?:.*?:.*/,@symbols);
1149         @symbols=((sort @e),(sort @r));
1150
1151         foreach $sym (@symbols) {
1152                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1153                 my $v = 0;
1154                 $v = 1 if $i=~ /^.*?:.*?:VARIABLE/;
1155                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1156                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1157                 if (!defined($nums{$s})) {
1158                         print STDERR "Warning: $s does not have a number assigned\n"
1159                             if(!$do_update);
1160                 } elsif (is_valid($p,1) && is_valid($a,0)) {
1161                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1162                         if ($prev eq $s2) {
1163                                 print OUT "\t/* The following has already appeared previously */\n";
1164                                 print STDERR "Warning: Symbol '",$s2,"' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1165                         }
1166                         $prev = $s2;    # To warn about duplicates...
1167
1168                         (my $nn, my $vers, my $ni) = split /\\/, $nums{$s2};
1169                         if ($v) {
1170                                 print OUT "\textern int $s2; /* type unknown */ /* $nn $ni */\n";
1171                         } else {
1172                                 print OUT "\textern int $s2(); /* type unknown */ /* $nn $ni */\n";
1173                         }
1174                 }
1175         }
1176 }
1177
1178 sub get_version {
1179    local *MF;
1180    my $v = '?';
1181    open MF, 'Makefile' or return $v;
1182    while (<MF>) {
1183      $v = $1, last if /^VERSION=(.*?)\s*$/;
1184    }
1185    close MF;
1186    return $v;
1187 }
1188
1189 sub print_def_file
1190 {
1191         (*OUT,my $name,*nums,my @symbols)=@_;
1192         my $n = 1; my @e; my @r; my @v; my $prev="";
1193         my $liboptions="";
1194         my $libname = $name;
1195         my $http_vendor = 'www.openssl.org/';
1196         my $version = get_version();
1197         my $what = "OpenSSL: implementation of Secure Socket Layer";
1198         my $description = "$what $version, $name - http://$http_vendor";
1199         my $prevsymversion = "", $prevprevsymversion = "";
1200         # For VMS
1201         my $prevnum = 0;
1202         my $symbolcount = 0;
1203
1204         if ($W32)
1205                 { $libname.="32"; }
1206         elsif ($OS2)
1207                 { # DLL names should not clash on the whole system.
1208                   # However, they should not have any particular relationship
1209                   # to the name of the static library.  Chose descriptive names
1210                   # (must be at most 8 chars).
1211                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1212                   $libname = $translate{$name} || $name;
1213                   $liboptions = <<EOO;
1214 INITINSTANCE
1215 DATA MULTIPLE NONSHARED
1216 EOO
1217                   # Vendor field can't contain colon, drat; so we omit http://
1218                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1219                 }
1220
1221         if ($W32 || $OS2)
1222                 {
1223                 print OUT <<"EOF";
1224 ;
1225 ; Definition file for the DLL version of the $name library from OpenSSL
1226 ;
1227
1228 LIBRARY         $libname        $liboptions
1229
1230 EOF
1231
1232                 print "EXPORTS\n";
1233                 }
1234         elsif ($VMS)
1235                 {
1236                 my $libref = $name eq "ssl" ? "LIBCRYPTO.EXE /SHARE" : "";
1237                 print OUT <<"EOF";
1238 IDENTIFICATION="LIB$libname V$version"
1239 LIB$libname.OLB /LIBRARY
1240 $libref
1241 SYMBOL_VECTOR=(-
1242 EOF
1243                 }
1244
1245         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1246         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1247         if ($VMS) {
1248             # VMS needs to have the symbols on slot number order
1249             @symbols=(map { $_->[1] }
1250                       sort { $a->[0] <=> $b->[0] }
1251                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1252                             die "Error: $s doesn't have a number assigned\n"
1253                                 if !defined($nums{$s});
1254                             (my $n, my @rest) = split /\\/, $nums{$s};
1255                             [ $n, $_ ] } (@e, @r, @v));
1256         } else {
1257             @symbols=((sort @e),(sort @r), (sort @v));
1258         }
1259
1260         my ($baseversion, $currversion) = get_openssl_version();
1261         my $thisversion;
1262         do {
1263                 if (!defined($thisversion)) {
1264                         $thisversion = $baseversion;
1265                 } else {
1266                         $thisversion = get_next_version($thisversion);
1267                 }
1268                 foreach $sym (@symbols) {
1269                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1270                         my $v = 0;
1271                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1272                         if (!defined($nums{$s})) {
1273                                 die "Error: $s does not have a number assigned\n"
1274                                         if(!$do_update);
1275                         } else {
1276                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1277                                 next if $symversion ne $thisversion;
1278                                 my %pf = ();
1279                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1280                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1281                                 if (is_valid($p,1) && is_valid($a,0)) {
1282                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1283                                         if ($prev eq $s2) {
1284                                                 print STDERR "Warning: Symbol '",$s2,
1285                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1286                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1287                                         }
1288                                         $prev = $s2;    # To warn about duplicates...
1289                                         if($linux) {
1290                                                 if ($symversion ne $prevsymversion) {
1291                                                         if ($prevsymversion ne "") {
1292                                                                 if ($prevprevsymversion ne "") {
1293                                                                         print OUT "} OPENSSL_"
1294                                                                                                 ."$prevprevsymversion;\n\n";
1295                                                                 } else {
1296                                                                         print OUT "};\n\n";
1297                                                                 }
1298                                                         }
1299                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1300                                                         $prevprevsymversion = $prevsymversion;
1301                                                         $prevsymversion = $symversion;
1302                                                 }
1303                                                 print OUT "        $s2;\n";
1304                                         } elsif ($VMS) {
1305                                             while(++$prevnum < $n) {
1306                                                 if ($symbolcount > 1023) {
1307                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1308                                                     $symbolcount = 0;
1309                                                 }
1310                                                 print OUT $symbolcount
1311                                                     ? "    ," : "    ";
1312                                                 print OUT "dummy$prevnum=PRIVATE_PROCEDURE -\n";
1313                                                 $symbolcount++;
1314                                             }
1315                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1316                                             if ($symbolcount > 1023) {
1317                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1318                                                 $symbolcount = 0;
1319                                             }
1320                                             print OUT $symbolcount
1321                                                 ? "    ," : "    ";
1322                                             print OUT "$s_uc/$s="
1323                                                 , ($v ? "DATA" : "PROCEDURE"), " -\n";
1324                                             $symbolcount++;
1325                                         } elsif($v && !$OS2) {
1326                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1327                                                                 ($W32)?"":"_",$s2,$n;
1328                                         } else {
1329                                                 printf OUT "    %s%-39s @%d\n",
1330                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1331                                         }
1332                                 }
1333                         }
1334                 }
1335         } while ($thisversion ne $currversion);
1336         if ($linux) {
1337                 if ($prevprevsymversion ne "") {
1338                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1339                 } else {
1340                         print OUT "    local: *;\n};\n\n";
1341                 }
1342         } elsif ($VMS) {
1343             print OUT ")\n";
1344             (my $libvmaj, my $libvmin, my $libvedit) =
1345                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1346             # The reason to multiply the edit number with 100 is to make space
1347             # for the possibility that we want to encode the patch letters
1348             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1349         }
1350         printf OUT "\n";
1351 }
1352
1353 sub load_numbers
1354 {
1355         my($name)=@_;
1356         my(@a,%ret);
1357         my $prevversion;
1358
1359         $max_num = 0;
1360         $num_noinfo = 0;
1361         $prev = "";
1362         $prev_cnt = 0;
1363
1364         my ($baseversion, $currversion) = get_openssl_version();
1365
1366         open(IN,"<$name") || die "unable to open $name:$!\n";
1367         while (<IN>) {
1368                 chop;
1369                 s/#.*$//;
1370                 next if /^\s*$/;
1371                 @a=split;
1372                 if (defined $ret{$a[0]}) {
1373                         # This is actually perfectly OK
1374                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1375                 }
1376                 if ($max_num > $a[1]) {
1377                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1378                 }
1379                 elsif ($max_num == $a[1]) {
1380                         # This is actually perfectly OK
1381                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1382                         if ($a[0] eq $prev) {
1383                                 $prev_cnt++;
1384                                 $a[0] .= "{$prev_cnt}";
1385                         }
1386                 }
1387                 else {
1388                         $prev_cnt = 0;
1389                 }
1390                 if ($#a < 2) {
1391                         # Existence will be proven later, in do_defs
1392                         $ret{$a[0]}=$a[1];
1393                         $num_noinfo++;
1394                 } else {
1395                         #Sanity check the version number
1396                         if (defined $prevversion) {
1397                                 check_version_lte($prevversion, $a[2]);
1398                         }
1399                         check_version_lte($a[2], $currversion);
1400                         $prevversion = $a[2];
1401                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ 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 $v, 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 $vers, 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\t%s\n","",$s2,$n,$vers,$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\t%s\n","",$s2,$n,$vers,$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         my $basevers;
1480         my $vers;
1481
1482         ($basevers, $vers) = get_openssl_version();
1483
1484         print STDERR "Updating $name numbers\n";
1485
1486         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1487         my $r; my %r; my %rsyms;
1488         foreach $r (@r) {
1489                 (my $s, my $i) = split /\\/, $r;
1490                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1491                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1492                 $r{$a} = $s."\\".$i;
1493                 $rsyms{$s} = 1;
1494         }
1495
1496         foreach $sym (@symbols) {
1497                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1498                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1499                 next if defined($rsyms{$sym});
1500                 die "ERROR: Symbol $sym had no info attached to it."
1501                     if $i eq "";
1502                 if (!exists $nums{$s}) {
1503                         $new_syms++;
1504                         my $s2 = $s;
1505                         $s2 =~ s/\{[0-9]+\}$//;
1506                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1507                         if (exists $r{$s}) {
1508                                 ($s, $i) = split /\\/,$r{$s};
1509                                 $s =~ s/\{[0-9]+\}$//;
1510                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1511                         }
1512                 }
1513         }
1514         if($new_syms) {
1515                 print STDERR "$new_syms New symbols added\n";
1516         } else {
1517                 print STDERR "No New symbols Added\n";
1518         }
1519 }
1520
1521 sub check_existing
1522 {
1523         (*nums, my @symbols)=@_;
1524         my %existing; my @remaining;
1525         @remaining=();
1526         foreach $sym (@symbols) {
1527                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1528                 $existing{$s}=1;
1529         }
1530         foreach $sym (keys %nums) {
1531                 if (!exists $existing{$sym}) {
1532                         push @remaining, $sym;
1533                 }
1534         }
1535         if(@remaining) {
1536                 print STDERR "The following symbols do not seem to exist:\n";
1537                 foreach $sym (@remaining) {
1538                         print STDERR "\t",$sym,"\n";
1539                 }
1540         }
1541 }
1542
1543 sub count_parens
1544 {
1545         my $line = shift(@_);
1546
1547         my $open = $line =~ tr/\(//;
1548         my $close = $line =~ tr/\)//;
1549
1550         return $open - $close;
1551 }
1552
1553 #Parse opensslv.h to get the current version number. Also work out the base
1554 #version, i.e. the lowest version number that is binary compatible with this
1555 #version
1556 sub get_openssl_version()
1557 {
1558         open (IN, "include/openssl/opensslv.h") || die "Can't open opensslv.h";
1559
1560         while(<IN>) {
1561                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1562                         my $suffix = $2;
1563                         my $baseversion = $1 =~ s/\./_/gr;
1564                         close IN;
1565                         return ($baseversion."0", $baseversion.$suffix);
1566                 }
1567         }
1568         die "Can't find OpenSSL version number\n";
1569 }
1570
1571 #Given an OpenSSL version number, calculate the next version number. If the
1572 #version number gets to a.b.czz then we go to a.b.(c+1)
1573 sub get_next_version()
1574 {
1575         my $thisversion = shift;
1576
1577         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1578
1579         if ($letter eq "zz") {
1580                 my $lastnum = substr($base, -1);
1581                 return substr($base, 0, length($base)-1).(++$lastnum);
1582         }
1583         return $base.get_next_letter($letter);
1584 }
1585
1586 #Given the letters off the end of an OpenSSL version string, calculate what
1587 #the letters for the next release would be.
1588 sub get_next_letter()
1589 {
1590         my $thisletter = shift;
1591         my $baseletter = "";
1592         my $endletter;
1593
1594         if ($thisletter eq "") {
1595                 return "a";
1596         }
1597         if ((length $thisletter) > 1) {
1598                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1599         } else {
1600                 $endletter = $thisletter;
1601         }
1602
1603         if ($endletter eq "z") {
1604                 return $thisletter."a";
1605         } else {
1606                 return $baseletter.(++$endletter);
1607         }
1608 }
1609
1610 #Check if a version is less than or equal to the current version. Its a fatal
1611 #error if not. They must also only differ in letters, or the last number (i.e.
1612 #the first two numbers must be the same)
1613 sub check_version_lte()
1614 {
1615         my ($testversion, $currversion) = @_;
1616         my $lentv;
1617         my $lencv;
1618         my $cvbase;
1619
1620         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1621         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1622
1623         #Die if we can't parse the version numbers or they don't look sane
1624         die "Invalid version number: $testversion and $currversion\n"
1625                 if (!defined($cvnums) || !defined($tvnums)
1626                         || length($cvnums) != 5
1627                         || length($tvnums) != 5);
1628
1629         #If the base versions (without letters) don't match check they only differ
1630         #in the last number
1631         if ($cvnums ne $tvnums) {
1632                 die "Invalid version number: $testversion "
1633                         ."for current version $currversion\n"
1634                         if (substr($cvnums, -1) < substr($tvnums, -1)
1635                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1636                 return;
1637         }
1638         #If we get here then the base version (i.e. the numbers) are the same - they
1639         #only differ in the letters
1640
1641         $lentv = length $testversion;
1642         $lencv = length $currversion;
1643
1644         #If the testversion has more letters than the current version then it must
1645         #be later (or malformed)
1646         if ($lentv > $lencv) {
1647                 die "Invalid version number: $testversion "
1648                         ."is greater than $currversion\n";
1649         }
1650
1651         #Get the last letter from the current version
1652         my ($cvletter) = $currversion =~ /([a-z])$/;
1653         if (defined $cvletter) {
1654                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1655         } else {
1656                 $cvbase = $currversion;
1657         }
1658         die "Unable to parse version number $currversion" if (!defined $cvbase);
1659         my $tvbase;
1660         my ($tvletter) = $testversion =~ /([a-z])$/;
1661         if (defined $tvletter) {
1662                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1663         } else {
1664                 $tvbase = $testversion;
1665         }
1666         die "Unable to parse version number $testversion" if (!defined $tvbase);
1667
1668         if ($lencv > $lentv) {
1669                 #If current version has more letters than testversion then testversion
1670                 #minus the final letter must be a substring of the current version
1671                 die "Invalid version number $testversion "
1672                         ."is greater than $currversion or is invalid\n"
1673                         if (index($cvbase, $tvbase) != 0);
1674         } else {
1675                 #If both versions have the same number of letters then they must be
1676                 #equal up to the last letter, and the last letter in testversion must
1677                 #be less than or equal to the last letter in current version.
1678                 die "Invalid version number $testversion "
1679                         ."is greater than $currversion\n"
1680                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1681         }
1682 }
1683
1684 sub do_deprecated()
1685 {
1686         my ($decl, $plats, $algs) = @_;
1687         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1688             or die "Bad DEPRECTEDIN: $decl\n";
1689         my $info1 .= "#INFO:";
1690         $info1 .= join(',', @{$plats}) . ":";
1691         my $info2 = $info1;
1692         $info1 .= join(',',@{$algs}, $1) . ";";
1693         $info2 .= join(',',@{$algs}) . ";";
1694         return $info1 . $2 . ";" . $info2;
1695 }