Fix a mkdef.pl warning
[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 use lib ".";
42 use configdata;
43 use File::Spec::Functions;
44
45 my $debug=0;
46
47 my $crypto_num= catfile($config{sourcedir},"util","libeay.num");
48 my $ssl_num=    catfile($config{sourcedir},"util","ssleay.num");
49 my $libname;
50
51 my $do_update = 0;
52 my $do_rewrite = 1;
53 my $do_crypto = 0;
54 my $do_ssl = 0;
55 my $do_ctest = 0;
56 my $do_ctestall = 0;
57 my $do_checkexist = 0;
58
59 my $VMSVAX=0;
60 my $VMSNonVAX=0;
61 my $VMS=0;
62 my $W32=0;
63 my $NT=0;
64 my $OS2=0;
65 my $linux=0;
66 # Set this to make typesafe STACK definitions appear in DEF
67 my $safe_stack_def = 0;
68
69 my @known_platforms = ( "__FreeBSD__", "PERL5",
70                         "EXPORT_VAR_AS_FUNCTION", "ZLIB"
71                         );
72 my @known_ossl_platforms = ( "VMS", "WIN32", "WINNT", "OS2" );
73 my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
74                          "CAST", "MD2", "MD4", "MD5", "SHA", "SHA0", "SHA1",
75                          "SHA256", "SHA512", "RMD160",
76                          "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
77                          "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
78                          "SCRYPT", "CHACHA", "POLY1305",
79                          # EC_NISTP_64_GCC_128
80                          "EC_NISTP_64_GCC_128",
81                          # Envelope "algorithms"
82                          "EVP", "X509", "ASN1_TYPEDEFS",
83                          # Helper "algorithms"
84                          "BIO", "COMP", "BUFFER", "LHASH", "STACK", "ERR",
85                          "LOCKING",
86                          # External "algorithms"
87                          "FP_API", "STDIO", "SOCK", "DGRAM",
88                          "CRYPTO_MDEBUG",
89                          # Engines
90                          "STATIC_ENGINE", "ENGINE", "HW", "GMP",
91                          # Entropy Gathering
92                          "EGD",
93                          # X.509v3 Signed Certificate Timestamps
94                          "SCT",
95                          # RFC3779
96                          "RFC3779",
97                          # TLS
98                          "PSK", "SRP", "HEARTBEATS",
99                          # CMS
100                          "CMS",
101                          # CryptoAPI Engine
102                          "CAPIENG",
103                          # SSL v3 method
104                          "SSL3_METHOD",
105                          # NEXTPROTONEG
106                          "NEXTPROTONEG",
107                          # Deprecated functions
108                          "DEPRECATEDIN_0_9_8",
109                          "DEPRECATEDIN_1_0_0",
110                          "DEPRECATEDIN_1_1_0",
111                          # SCTP
112                          "SCTP",
113                          # SRTP
114                          "SRTP",
115                          # SSL TRACE
116                          "SSL_TRACE",
117                          # Unit testing
118                          "UNIT_TEST",
119                          # OCB mode
120                          "OCB",
121                          # APPLINK (win build feature?)
122                          "APPLINK"
123                      );
124
125 my %disabled_algorithms;
126
127 foreach (@known_algorithms) {
128     $disabled_algorithms{$_} = 0;
129 }
130 # disabled by default
131 $disabled_algorithms{"STATIC_ENGINE"} = 1;
132
133 my $zlib;
134
135 foreach (@ARGV, split(/ /, $config{options}))
136         {
137         $debug=1 if $_ eq "debug";
138         $W32=1 if $_ eq "32";
139         die "win16 not supported" if $_ eq "16";
140         if($_ eq "NT") {
141                 $W32 = 1;
142                 $NT = 1;
143         }
144         if ($_ eq "VMS-VAX") {
145                 $VMS=1;
146                 $VMSVAX=1;
147         }
148         if ($_ eq "VMS-NonVAX") {
149                 $VMS=1;
150                 $VMSNonVAX=1;
151         }
152         if ($_ eq "linux") {
153                 $linux=1;
154         }
155         $VMS=$VMSNonVAX=1 if $_ eq "VMS";
156         $OS2=1 if $_ eq "OS2";
157         if ($_ 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         $do_update=1 if $_ eq "update";
173         $do_rewrite=1 if $_ eq "rewrite";
174         $do_ctest=1 if $_ eq "ctest";
175         $do_ctestall=1 if $_ eq "ctestall";
176         $do_checkexist=1 if $_ eq "exist";
177         if (/^--api=(\d+)\.(\d+)\.(\d+)$/) {
178                 my $apiv = sprintf "%x%02x%02x", $1, $2, $3;
179                 foreach (keys %disabled_algorithms) {
180                         if (/^DEPRECATEDIN_(\d+)_(\d+)_(\d+)$/) {
181                                 my $depv = sprintf "%x%02x%02x", $1, $2, $3;
182                                 $disabled_algorithms{$_} = 1 if $apiv ge $depv;
183                         }
184                 }
185         }
186         if (/^no-deprecated$/) {
187                 foreach (keys %disabled_algorithms) {
188                         if (/^DEPRECATEDIN_/) {
189                                 $disabled_algorithms{$_} = 1;
190                         }
191                 }
192         }
193         elsif (/^(enable|disable|no)-(.*)$/) {
194                 my $alg = uc $2;
195         $alg =~ tr/-/_/;
196                 if (exists $disabled_algorithms{$alg}) {
197                         $disabled_algorithms{$alg} = $1 eq "enable" ? 0 : 1;
198                 }
199         }
200
201         }
202
203 if (!$libname) { 
204         if ($do_ssl) {
205                 $libname="SSLEAY";
206         }
207         if ($do_crypto) {
208                 $libname="LIBEAY";
209         }
210 }
211
212 # If no platform is given, assume WIN32
213 if ($W32 + $VMS + $OS2 + $linux == 0) {
214         $W32 = 1;
215 }
216 die "Please, only one platform at a time"
217     if ($W32 + $VMS + $OS2 + $linux > 1);
218
219 if (!$do_ssl && !$do_crypto)
220         {
221         print STDERR "usage: $0 ( ssl | crypto ) [ 16 | 32 | NT | OS2 | linux | VMS ]\n";
222         exit(1);
223         }
224
225 %ssl_list=&load_numbers($ssl_num);
226 $max_ssl = $max_num;
227 %crypto_list=&load_numbers($crypto_num);
228 $max_crypto = $max_num;
229
230 my $ssl="include/openssl/ssl.h";
231 $ssl.=" include/openssl/tls1.h";
232 $ssl.=" include/openssl/srtp.h";
233
234 # We use headers found in include/openssl and include/internal only.
235 # The latter is needed so libssl.so/.dll/.exe can link properly.
236 my $crypto ="include/openssl/crypto.h";
237 $crypto.=" include/internal/o_dir.h";
238 $crypto.=" include/internal/o_str.h";
239 $crypto.=" include/internal/threads.h";
240 $crypto.=" include/openssl/des.h" ; # unless $no_des;
241 $crypto.=" include/openssl/idea.h" ; # unless $no_idea;
242 $crypto.=" include/openssl/rc4.h" ; # unless $no_rc4;
243 $crypto.=" include/openssl/rc5.h" ; # unless $no_rc5;
244 $crypto.=" include/openssl/rc2.h" ; # unless $no_rc2;
245 $crypto.=" include/openssl/blowfish.h" ; # unless $no_bf;
246 $crypto.=" include/openssl/cast.h" ; # unless $no_cast;
247 $crypto.=" include/openssl/whrlpool.h" ;
248 $crypto.=" include/openssl/md2.h" ; # unless $no_md2;
249 $crypto.=" include/openssl/md4.h" ; # unless $no_md4;
250 $crypto.=" include/openssl/md5.h" ; # unless $no_md5;
251 $crypto.=" include/openssl/mdc2.h" ; # unless $no_mdc2;
252 $crypto.=" include/openssl/sha.h" ; # unless $no_sha;
253 $crypto.=" include/openssl/ripemd.h" ; # unless $no_ripemd;
254 $crypto.=" include/openssl/aes.h" ; # unless $no_aes;
255 $crypto.=" include/openssl/camellia.h" ; # unless $no_camellia;
256 $crypto.=" include/openssl/seed.h"; # unless $no_seed;
257
258 $crypto.=" include/openssl/bn.h";
259 $crypto.=" include/openssl/rsa.h" ; # unless $no_rsa;
260 $crypto.=" include/openssl/dsa.h" ; # unless $no_dsa;
261 $crypto.=" include/openssl/dh.h" ; # unless $no_dh;
262 $crypto.=" include/openssl/ec.h" ; # unless $no_ec;
263 $crypto.=" include/openssl/hmac.h" ; # unless $no_hmac;
264 $crypto.=" include/openssl/cmac.h" ;
265
266 $crypto.=" include/openssl/engine.h"; # unless $no_engine;
267 $crypto.=" include/openssl/stack.h" ; # unless $no_stack;
268 $crypto.=" include/openssl/buffer.h" ; # unless $no_buffer;
269 $crypto.=" include/openssl/bio.h" ; # unless $no_bio;
270 $crypto.=" include/openssl/dso.h" ; # unless $no_dso;
271 $crypto.=" include/openssl/lhash.h" ; # unless $no_lhash;
272 $crypto.=" include/openssl/conf.h";
273 $crypto.=" include/openssl/txt_db.h";
274
275 $crypto.=" include/openssl/evp.h" ; # unless $no_evp;
276 $crypto.=" include/openssl/objects.h";
277 $crypto.=" include/openssl/pem.h";
278 #$crypto.=" include/openssl/meth.h";
279 $crypto.=" include/openssl/asn1.h";
280 $crypto.=" include/openssl/asn1t.h";
281 $crypto.=" include/openssl/err.h" ; # unless $no_err;
282 $crypto.=" include/openssl/pkcs7.h";
283 $crypto.=" include/openssl/pkcs12.h";
284 $crypto.=" include/openssl/x509.h";
285 $crypto.=" include/openssl/x509_vfy.h";
286 $crypto.=" include/openssl/x509v3.h";
287 $crypto.=" include/openssl/ts.h";
288 $crypto.=" include/openssl/rand.h";
289 $crypto.=" include/openssl/comp.h" ; # unless $no_comp;
290 $crypto.=" include/openssl/ocsp.h";
291 $crypto.=" include/openssl/ui.h";
292 #$crypto.=" include/openssl/store.h";
293 $crypto.=" include/openssl/cms.h";
294 $crypto.=" include/openssl/srp.h";
295 $crypto.=" include/openssl/modes.h";
296 $crypto.=" include/openssl/async.h";
297
298 my $symhacks="include/openssl/symhacks.h";
299
300 my @ssl_symbols = &do_defs("SSLEAY", $ssl, $symhacks);
301 my @crypto_symbols = &do_defs("LIBEAY", $crypto, $symhacks);
302
303 if ($do_update) {
304
305 if ($do_ssl == 1) {
306
307         &maybe_add_info("SSLEAY",*ssl_list,@ssl_symbols);
308         if ($do_rewrite == 1) {
309                 open(OUT, ">$ssl_num");
310                 &rewrite_numbers(*OUT,"SSLEAY",*ssl_list,@ssl_symbols);
311         } else {
312                 open(OUT, ">>$ssl_num");
313         }
314         &update_numbers(*OUT,"SSLEAY",*ssl_list,$max_ssl,@ssl_symbols);
315         close OUT;
316 }
317
318 if($do_crypto == 1) {
319
320         &maybe_add_info("LIBEAY",*crypto_list,@crypto_symbols);
321         if ($do_rewrite == 1) {
322                 open(OUT, ">$crypto_num");
323                 &rewrite_numbers(*OUT,"LIBEAY",*crypto_list,@crypto_symbols);
324         } else {
325                 open(OUT, ">>$crypto_num");
326         }
327         &update_numbers(*OUT,"LIBEAY",*crypto_list,$max_crypto,@crypto_symbols);
328         close OUT;
329
330
331 } elsif ($do_checkexist) {
332         &check_existing(*ssl_list, @ssl_symbols)
333                 if $do_ssl == 1;
334         &check_existing(*crypto_list, @crypto_symbols)
335                 if $do_crypto == 1;
336 } elsif ($do_ctest || $do_ctestall) {
337
338         print <<"EOF";
339
340 /* Test file to check all DEF file symbols are present by trying
341  * to link to all of them. This is *not* intended to be run!
342  */
343
344 int main()
345 {
346 EOF
347         &print_test_file(*STDOUT,"SSLEAY",*ssl_list,$do_ctestall,@ssl_symbols)
348                 if $do_ssl == 1;
349
350         &print_test_file(*STDOUT,"LIBEAY",*crypto_list,$do_ctestall,@crypto_symbols)
351                 if $do_crypto == 1;
352
353         print "}\n";
354
355 } else {
356
357         &print_def_file(*STDOUT,$libname,*ssl_list,@ssl_symbols)
358                 if $do_ssl == 1;
359
360         &print_def_file(*STDOUT,$libname,*crypto_list,@crypto_symbols)
361                 if $do_crypto == 1;
362
363 }
364
365
366 sub do_defs
367 {
368         my($name,$files,$symhacksfile)=@_;
369         my $file;
370         my @ret;
371         my %syms;
372         my %platform;           # For anything undefined, we assume ""
373         my %kind;               # For anything undefined, we assume "FUNCTION"
374         my %algorithm;          # For anything undefined, we assume ""
375         my %variant;
376         my %variant_cnt;        # To be able to allocate "name{n}" if "name"
377                                 # is the same name as the original.
378         my $cpp;
379         my %unknown_algorithms = ();
380         my $parens = 0;
381
382         foreach $file (split(/\s+/,$symhacksfile." ".$files))
383                 {
384                 my $fn = catfile($config{sourcedir},$file);
385                 print STDERR "DEBUG: starting on $fn:\n" if $debug;
386                 open(IN,"<$fn") || die "unable to open $fn:$!\n";
387                 my $line = "", my $def= "";
388                 my %tag = (
389                         (map { $_ => 0 } @known_platforms),
390                         (map { "OPENSSL_SYS_".$_ => 0 } @known_ossl_platforms),
391                         (map { "OPENSSL_NO_".$_ => 0 } @known_algorithms),
392                         (map { "OPENSSL_USE_".$_ => 0 } @known_algorithms),
393                         NOPROTO         => 0,
394                         PERL5           => 0,
395                         _WINDLL         => 0,
396                         CONST_STRICT    => 0,
397                         TRUE            => 1,
398                 );
399                 my $symhacking = $file eq $symhacksfile;
400                 my @current_platforms = ();
401                 my @current_algorithms = ();
402
403                 # params: symbol, alias, platforms, kind
404                 # The reason to put this subroutine in a variable is that
405                 # it will otherwise create it's own, unshared, version of
406                 # %tag and %variant...
407                 my $make_variant = sub
408                 {
409                         my ($s, $a, $p, $k) = @_;
410                         my ($a1, $a2);
411
412                         print STDERR "DEBUG: make_variant: Entered with ",$s,", ",$a,", ",(defined($p)?$p:""),", ",(defined($k)?$k:""),"\n" if $debug;
413                         if (defined($p))
414                         {
415                                 $a1 = join(",",$p,
416                                            grep(!/^$/,
417                                                 map { $tag{$_} == 1 ? $_ : "" }
418                                                 @known_platforms));
419                         }
420                         else
421                         {
422                                 $a1 = join(",",
423                                            grep(!/^$/,
424                                                 map { $tag{$_} == 1 ? $_ : "" }
425                                                 @known_platforms));
426                         }
427                         $a2 = join(",",
428                                    grep(!/^$/,
429                                         map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ : "" }
430                                         @known_ossl_platforms));
431                         print STDERR "DEBUG: make_variant: a1 = $a1; a2 = $a2\n" if $debug;
432                         if ($a1 eq "") { $a1 = $a2; }
433                         elsif ($a1 ne "" && $a2 ne "") { $a1 .= ",".$a2; }
434                         if ($a eq $s)
435                         {
436                                 if (!defined($variant_cnt{$s}))
437                                 {
438                                         $variant_cnt{$s} = 0;
439                                 }
440                                 $variant_cnt{$s}++;
441                                 $a .= "{$variant_cnt{$s}}";
442                         }
443                         my $toadd = $a.":".$a1.(defined($k)?":".$k:"");
444                         my $togrep = $s.'(\{[0-9]+\})?:'.$a1.(defined($k)?":".$k:"");
445                         if (!grep(/^$togrep$/,
446                                   split(/;/, defined($variant{$s})?$variant{$s}:""))) {
447                                 if (defined($variant{$s})) { $variant{$s} .= ";"; }
448                                 $variant{$s} .= $toadd;
449                         }
450                         print STDERR "DEBUG: make_variant: Exit with variant of ",$s," = ",$variant{$s},"\n" if $debug;
451                 };
452
453                 print STDERR "DEBUG: parsing ----------\n" if $debug;
454                 while(<IN>) {
455                         if($parens > 0) {
456                                 #Inside a DEPRECATEDIN
457                                 $stored_multiline .= $_;
458                                 $stored_multiline =~ s|\R$||; # Better chomp
459                                 print STDERR "DEBUG: Continuing multiline DEPRECATEDIN: $stored_multiline\n" if $debug;
460                                 $parens = count_parens($stored_multiline);
461                                 if ($parens == 0) {
462                                         $def .= do_deprecated($stored_multiline,
463                                                         \@current_platforms,
464                                                         \@current_algorithms);
465                                 }
466                                 next;
467                         }
468                         if (/\/\* Error codes for the \w+ functions\. \*\//)
469                                 {
470                                 undef @tag;
471                                 last;
472                                 }
473                         if ($line ne '') {
474                                 $_ = $line . $_;
475                                 $line = '';
476                         }
477
478                         if (/\\$/) {
479                                 $line = $`; # keep what was before the backslash
480                                 next;
481                         }
482
483                         if(/\/\*/) {
484                                 if (not /\*\//) {       # multiline comment...
485                                         $line = $_;     # ... just accumulate
486                                         next;
487                                 } else {
488                                         s/\/\*.*?\*\///gs;# wipe it
489                                 }
490                         }
491
492                         if ($cpp) {
493                                 $cpp++ if /^#\s*if/;
494                                 $cpp-- if /^#\s*endif/;
495                                 next;
496                         }
497                         if (/^#.*ifdef.*cplusplus/) {
498                                 $cpp = 1;
499                                 next;
500                         }
501
502                         s/{[^{}]*}//gs;                      # ignore {} blocks
503                         print STDERR "DEBUG: \$def=\"$def\"\n" if $debug && $def ne "";
504                         print STDERR "DEBUG: \$_=\"$_\"\n" if $debug;
505                         if (/^\#\s*ifndef\s+(.*)/) {
506                                 push(@tag,"-");
507                                 push(@tag,$1);
508                                 $tag{$1}=-1;
509                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
510                         } elsif (/^\#\s*if\s+!defined\(([^\)]+)\)/) {
511                                 push(@tag,"-");
512                                 if (/^\#\s*if\s+(!defined\(([^\)]+)\)(\s+\&\&\s+!defined\(([^\)]+)\))*)$/) {
513                                         my $tmp_1 = $1;
514                                         my $tmp_;
515                                         foreach $tmp_ (split '\&\&',$tmp_1) {
516                                                 $tmp_ =~ /!defined\(([^\)]+)\)/;
517                                                 print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
518                                                 push(@tag,$1);
519                                                 $tag{$1}=-1;
520                                         }
521                                 } else {
522                                         print STDERR "Warning: $file: complicated expression: $_" if $debug; # because it is O...
523                                         print STDERR "DEBUG: $file: found tag $1 = -1\n" if $debug;
524                                         push(@tag,$1);
525                                         $tag{$1}=-1;
526                                 }
527                         } elsif (/^\#\s*ifdef\s+(\S*)/) {
528                                 push(@tag,"-");
529                                 push(@tag,$1);
530                                 $tag{$1}=1;
531                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
532                         } elsif (/^\#\s*if\s+defined\(([^\)]+)\)/) {
533                                 push(@tag,"-");
534                                 if (/^\#\s*if\s+(defined\(([^\)]+)\)(\s+\|\|\s+defined\(([^\)]+)\))*)$/) {
535                                         my $tmp_1 = $1;
536                                         my $tmp_;
537                                         foreach $tmp_ (split '\|\|',$tmp_1) {
538                                                 $tmp_ =~ /defined\(([^\)]+)\)/;
539                                                 print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
540                                                 push(@tag,$1);
541                                                 $tag{$1}=1;
542                                         }
543                                 } else {
544                                         print STDERR "Warning: $file: complicated expression: $_\n" if $debug; # because it is O...
545                                         print STDERR "DEBUG: $file: found tag $1 = 1\n" if $debug;
546                                         push(@tag,$1);
547                                         $tag{$1}=1;
548                                 }
549                         } elsif (/^\#\s*error\s+(\w+) is disabled\./) {
550                                 my $tag_i = $#tag;
551                                 while($tag[$tag_i] ne "-") {
552                                         if ($tag[$tag_i] eq "OPENSSL_NO_".$1) {
553                                                 $tag{$tag[$tag_i]}=2;
554                                                 print STDERR "DEBUG: $file: chaged tag $1 = 2\n" if $debug;
555                                         }
556                                         $tag_i--;
557                                 }
558                         } elsif (/^\#\s*endif/) {
559                                 my $tag_i = $#tag;
560                                 while($tag_i > 0 && $tag[$tag_i] ne "-") {
561                                         my $t=$tag[$tag_i];
562                                         print STDERR "DEBUG: \$t=\"$t\"\n" if $debug;
563                                         if ($tag{$t}==2) {
564                                                 $tag{$t}=-1;
565                                         } else {
566                                                 $tag{$t}=0;
567                                         }
568                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
569                                         pop(@tag);
570                                         if ($t =~ /^OPENSSL_NO_([A-Z0-9_]+)$/) {
571                                                 $t=$1;
572                                         } elsif($t =~ /^OPENSSL_USE_([A-Z0-9_]+)$/) {
573                                                 $t=$1;
574                                         } else {
575                                                 $t="";
576                                         }
577                                         if ($t ne ""
578                                             && !grep(/^$t$/, @known_algorithms)) {
579                                                 $unknown_algorithms{$t} = 1;
580                                                 #print STDERR "DEBUG: Added as unknown algorithm: $t\n" if $debug;
581                                         }
582                                         $tag_i--;
583                                 }
584                                 pop(@tag);
585                         } elsif (/^\#\s*else/) {
586                                 my $tag_i = $#tag;
587                                 die "$file unmatched else\n" if $tag_i < 0;
588                                 while($tag[$tag_i] ne "-") {
589                                         my $t=$tag[$tag_i];
590                                         $tag{$t}= -$tag{$t};
591                                         print STDERR "DEBUG: $file: changed tag ",$t," = ",$tag{$t},"\n" if $debug;
592                                         $tag_i--;
593                                 }
594                         } elsif (/^\#\s*if\s+1/) {
595                                 push(@tag,"-");
596                                 # Dummy tag
597                                 push(@tag,"TRUE");
598                                 $tag{"TRUE"}=1;
599                                 print STDERR "DEBUG: $file: found 1\n" if $debug;
600                         } elsif (/^\#\s*if\s+0/) {
601                                 push(@tag,"-");
602                                 # Dummy tag
603                                 push(@tag,"TRUE");
604                                 $tag{"TRUE"}=-1;
605                                 print STDERR "DEBUG: $file: found 0\n" if $debug;
606                         } elsif (/^\#\s*if\s+/) {
607                                 #Some other unrecognized "if" style
608                                 push(@tag,"-");
609                         } elsif (/^\#\s*define\s+(\w+)\s+(\w+)/
610                                  && $symhacking && $tag{'TRUE'} != -1) {
611                                 # This is for aliasing.  When we find an alias,
612                                 # we have to invert
613                                 &$make_variant($1,$2);
614                                 print STDERR "DEBUG: $file: defined $1 = $2\n" if $debug;
615                         }
616                         if (/^\#/) {
617                                 @current_platforms =
618                                     grep(!/^$/,
619                                          map { $tag{$_} == 1 ? $_ :
620                                                    $tag{$_} == -1 ? "!".$_  : "" }
621                                          @known_platforms);
622                                 push @current_platforms
623                                     , grep(!/^$/,
624                                            map { $tag{"OPENSSL_SYS_".$_} == 1 ? $_ :
625                                                      $tag{"OPENSSL_SYS_".$_} == -1 ? "!".$_  : "" }
626                                            @known_ossl_platforms);
627                                 @current_algorithms = ();
628                                 @current_algorithms =
629                                     grep(!/^$/,
630                                          map { $tag{"OPENSSL_NO_".$_} == -1 ? $_ : "" }
631                                          @known_algorithms);
632                                 push @current_algorithms
633                                     , grep(!/^$/,
634                                          map { $tag{"OPENSSL_USE_".$_} == 1 ? $_ : "" }
635                                          @known_algorithms);
636                                 $def .=
637                                     "#INFO:"
638                                         .join(',',@current_platforms).":"
639                                             .join(',',@current_algorithms).";";
640                                 next;
641                         }
642                         if ($tag{'TRUE'} != -1) {
643                                 if (/^\s*DECLARE_STACK_OF\s*\(\s*(\w*)\s*\)/) {
644                                         next;
645                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
646                                         $def .= "int d2i_$3(void);";
647                                         $def .= "int i2d_$3(void);";
648                                         # Variant for platforms that do not
649                                         # have to access globale variables
650                                         # in shared libraries through functions
651                                         $def .=
652                                             "#INFO:"
653                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
654                                                     .join(',',@current_algorithms).";";
655                                         $def .= "OPENSSL_EXTERN int $2_it;";
656                                         $def .=
657                                             "#INFO:"
658                                                 .join(',',@current_platforms).":"
659                                                     .join(',',@current_algorithms).";";
660                                         # Variant for platforms that have to
661                                         # access globale variables in shared
662                                         # libraries through functions
663                                         &$make_variant("$2_it","$2_it",
664                                                       "EXPORT_VAR_AS_FUNCTION",
665                                                       "FUNCTION");
666                                         next;
667                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_fname\s*\(\s*(\w*)\s*,\s*(\w*)\s*,\s*(\w*)\s*\)/) {
668                                         $def .= "int d2i_$3(void);";
669                                         $def .= "int i2d_$3(void);";
670                                         $def .= "int $3_free(void);";
671                                         $def .= "int $3_new(void);";
672                                         # Variant for platforms that do not
673                                         # have to access globale variables
674                                         # in shared libraries through functions
675                                         $def .=
676                                             "#INFO:"
677                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
678                                                     .join(',',@current_algorithms).";";
679                                         $def .= "OPENSSL_EXTERN int $2_it;";
680                                         $def .=
681                                             "#INFO:"
682                                                 .join(',',@current_platforms).":"
683                                                     .join(',',@current_algorithms).";";
684                                         # Variant for platforms that have to
685                                         # access globale variables in shared
686                                         # libraries through functions
687                                         &$make_variant("$2_it","$2_it",
688                                                       "EXPORT_VAR_AS_FUNCTION",
689                                                       "FUNCTION");
690                                         next;
691                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS\s*\(\s*(\w*)\s*\)/ ||
692                                          /^\s*DECLARE_ASN1_FUNCTIONS_const\s*\(\s*(\w*)\s*\)/) {
693                                         $def .= "int d2i_$1(void);";
694                                         $def .= "int i2d_$1(void);";
695                                         $def .= "int $1_free(void);";
696                                         $def .= "int $1_new(void);";
697                                         # Variant for platforms that do not
698                                         # have to access globale variables
699                                         # in shared libraries through functions
700                                         $def .=
701                                             "#INFO:"
702                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
703                                                     .join(',',@current_algorithms).";";
704                                         $def .= "OPENSSL_EXTERN int $1_it;";
705                                         $def .=
706                                             "#INFO:"
707                                                 .join(',',@current_platforms).":"
708                                                     .join(',',@current_algorithms).";";
709                                         # Variant for platforms that have to
710                                         # access globale variables in shared
711                                         # libraries through functions
712                                         &$make_variant("$1_it","$1_it",
713                                                       "EXPORT_VAR_AS_FUNCTION",
714                                                       "FUNCTION");
715                                         next;
716                                 } elsif (/^\s*DECLARE_ASN1_ENCODE_FUNCTIONS_const\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
717                                         $def .= "int d2i_$2(void);";
718                                         $def .= "int i2d_$2(void);";
719                                         # Variant for platforms that do not
720                                         # have to access globale variables
721                                         # in shared libraries through functions
722                                         $def .=
723                                             "#INFO:"
724                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
725                                                     .join(',',@current_algorithms).";";
726                                         $def .= "OPENSSL_EXTERN int $2_it;";
727                                         $def .=
728                                             "#INFO:"
729                                                 .join(',',@current_platforms).":"
730                                                     .join(',',@current_algorithms).";";
731                                         # Variant for platforms that have to
732                                         # access globale variables in shared
733                                         # libraries through functions
734                                         &$make_variant("$2_it","$2_it",
735                                                       "EXPORT_VAR_AS_FUNCTION",
736                                                       "FUNCTION");
737                                         next;
738                                 } elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
739                                         $def .= "int $1_free(void);";
740                                         $def .= "int $1_new(void);";
741                                         next;
742                                 } elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
743                                         $def .= "int d2i_$2(void);";
744                                         $def .= "int i2d_$2(void);";
745                                         $def .= "int $2_free(void);";
746                                         $def .= "int $2_new(void);";
747                                         # Variant for platforms that do not
748                                         # have to access globale variables
749                                         # in shared libraries through functions
750                                         $def .=
751                                             "#INFO:"
752                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
753                                                     .join(',',@current_algorithms).";";
754                                         $def .= "OPENSSL_EXTERN int $2_it;";
755                                         $def .=
756                                             "#INFO:"
757                                                 .join(',',@current_platforms).":"
758                                                     .join(',',@current_algorithms).";";
759                                         # Variant for platforms that have to
760                                         # access globale variables in shared
761                                         # libraries through functions
762                                         &$make_variant("$2_it","$2_it",
763                                                       "EXPORT_VAR_AS_FUNCTION",
764                                                       "FUNCTION");
765                                         next;
766                                 } elsif (/^\s*DECLARE_ASN1_ITEM\s*\(\s*(\w*)\s*\)/) {
767                                         # Variant for platforms that do not
768                                         # have to access globale variables
769                                         # in shared libraries through functions
770                                         $def .=
771                                             "#INFO:"
772                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
773                                                     .join(',',@current_algorithms).";";
774                                         $def .= "OPENSSL_EXTERN int $1_it;";
775                                         $def .=
776                                             "#INFO:"
777                                                 .join(',',@current_platforms).":"
778                                                     .join(',',@current_algorithms).";";
779                                         # Variant for platforms that have to
780                                         # access globale variables in shared
781                                         # libraries through functions
782                                         &$make_variant("$1_it","$1_it",
783                                                       "EXPORT_VAR_AS_FUNCTION",
784                                                       "FUNCTION");
785                                         next;
786                                 } elsif (/^\s*DECLARE_ASN1_NDEF_FUNCTION\s*\(\s*(\w*)\s*\)/) {
787                                         $def .= "int i2d_$1_NDEF(void);";
788                                 } elsif (/^\s*DECLARE_ASN1_SET_OF\s*\(\s*(\w*)\s*\)/) {
789                                         next;
790                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION\s*\(\s*(\w*)\s*\)/) {
791                                         $def .= "int $1_print_ctx(void);";
792                                         next;
793                                 } elsif (/^\s*DECLARE_ASN1_PRINT_FUNCTION_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
794                                         $def .= "int $2_print_ctx(void);";
795                                         next;
796                                 } elsif (/^\s*DECLARE_PKCS12_STACK_OF\s*\(\s*(\w*)\s*\)/) {
797                                         next;
798                                 } elsif (/^DECLARE_PEM_rw\s*\(\s*(\w*)\s*,/ ||
799                                          /^DECLARE_PEM_rw_cb\s*\(\s*(\w*)\s*,/ ||
800                                          /^DECLARE_PEM_rw_const\s*\(\s*(\w*)\s*,/ ) {
801                                         $def .=
802                                             "#INFO:"
803                                                 .join(',',@current_platforms).":"
804                                                     .join(',',@current_algorithms).";";
805                                         $def .= "int PEM_read_$1(void);";
806                                         $def .= "int PEM_write_$1(void);";
807                                         $def .=
808                                             "#INFO:"
809                                                 .join(',',@current_platforms).":"
810                                                     .join(',',@current_algorithms).";";
811                                         # Things that are everywhere
812                                         $def .= "int PEM_read_bio_$1(void);";
813                                         $def .= "int PEM_write_bio_$1(void);";
814                                         next;
815                                 } elsif (/^DECLARE_PEM_write\s*\(\s*(\w*)\s*,/ ||
816                                         /^DECLARE_PEM_write_const\s*\(\s*(\w*)\s*,/ ||
817                                          /^DECLARE_PEM_write_cb\s*\(\s*(\w*)\s*,/ ) {
818                                         $def .=
819                                             "#INFO:"
820                                                 .join(',',@current_platforms).":"
821                                                     .join(',',@current_algorithms).";";
822                                         $def .= "int PEM_write_$1(void);";
823                                         $def .=
824                                             "#INFO:"
825                                                 .join(',',@current_platforms).":"
826                                                     .join(',',@current_algorithms).";";
827                                         # Things that are everywhere
828                                         $def .= "int PEM_write_bio_$1(void);";
829                                         next;
830                                 } elsif (/^DECLARE_PEM_read\s*\(\s*(\w*)\s*,/ ||
831                                          /^DECLARE_PEM_read_cb\s*\(\s*(\w*)\s*,/ ) {
832                                         $def .=
833                                             "#INFO:"
834                                                 .join(',',@current_platforms).":"
835                                                     .join(',',@current_algorithms).";";
836                                         $def .= "int PEM_read_$1(void);";
837                                         $def .=
838                                             "#INFO:"
839                                                 .join(',',@current_platforms).":"
840                                                     .join(',',@current_algorithms).";";
841                                         # Things that are everywhere
842                                         $def .= "int PEM_read_bio_$1(void);";
843                                         next;
844                                 } elsif (/^OPENSSL_DECLARE_GLOBAL\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
845                                         # Variant for platforms that do not
846                                         # have to access globale variables
847                                         # in shared libraries through functions
848                                         $def .=
849                                             "#INFO:"
850                                                 .join(',',"!EXPORT_VAR_AS_FUNCTION",@current_platforms).":"
851                                                     .join(',',@current_algorithms).";";
852                                         $def .= "OPENSSL_EXTERN int _shadow_$2;";
853                                         $def .=
854                                             "#INFO:"
855                                                 .join(',',@current_platforms).":"
856                                                     .join(',',@current_algorithms).";";
857                                         # Variant for platforms that have to
858                                         # access globale variables in shared
859                                         # libraries through functions
860                                         &$make_variant("_shadow_$2","_shadow_$2",
861                                                       "EXPORT_VAR_AS_FUNCTION",
862                                                       "FUNCTION");
863                                 } elsif (/^\s*DEPRECATEDIN/) {
864                                         $parens = count_parens($_);
865                                         if ($parens == 0) {
866                                                 $def .= do_deprecated($_,
867                                                         \@current_platforms,
868                                                         \@current_algorithms);
869                                         } else {
870                                                 $stored_multiline = $_;
871                                                 $stored_multiline =~ s|\R$||;
872                                                 print STDERR "DEBUG: Found multiline DEPRECATEDIN starting with: $stored_multiline\n" if $debug;
873                                                 next;
874                                         }
875                                 } elsif ($tag{'CONST_STRICT'} != 1) {
876                                         if (/\{|\/\*|\([^\)]*$/) {
877                                                 $line = $_;
878                                         } else {
879                                                 $def .= $_;
880                                         }
881                                 }
882                         }
883                 }
884                 close(IN);
885                 die "$file: Unmatched tags\n" if $#tag >= 0;
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 {
1037         (my $symbol, my $exist, my $platforms, my $kind, my $algorithms) = @_;
1038
1039         my %a = defined($algorithms) ?
1040             map { $_ => 1 } split /,/, $algorithms : ();
1041         my $k = defined($kind) ? $kind : "FUNCTION";
1042         my $ret;
1043         my $p = &reduce_platforms($platforms);
1044
1045         delete $a{""};
1046
1047         $ret = $exist;
1048         $ret .= ":".$p;
1049         $ret .= ":".$k;
1050         $ret .= ":".join(',',sort keys %a);
1051         return $ret;
1052 }
1053
1054 sub maybe_add_info
1055 {
1056         (my $name, *nums, my @symbols) = @_;
1057         my $sym;
1058         my $new_info = 0;
1059         my %syms=();
1060
1061         foreach $sym (@symbols) {
1062                 (my $s, my $i) = split /\\/, $sym;
1063                 if (defined($nums{$s})) {
1064                         $i =~ s/^(.*?:.*?:\w+)(\(\w+\))?/$1/;
1065                         (my $n, my $vers, my $dummy) = split /\\/, $nums{$s};
1066                         if (!defined($dummy) || $i ne $dummy) {
1067                                 $nums{$s} = $n."\\".$vers."\\".$i;
1068                                 $new_info++;
1069                                 print STDERR "DEBUG: maybe_add_info for $s: \"$dummy\" => \"$i\"\n" if $debug;
1070                         }
1071                 }
1072                 $syms{$s} = 1;
1073         }
1074
1075         my @s=sort { &parse_number($nums{$a},"n") <=> &parse_number($nums{$b},"n") } keys %nums;
1076         foreach $sym (@s) {
1077                 (my $n, my $vers, my $i) = split /\\/, $nums{$sym};
1078                 if (!defined($syms{$sym}) && $i !~ /^NOEXIST:/) {
1079                         $new_info++;
1080                         print STDERR "DEBUG: maybe_add_info for $sym: -> undefined\n" if $debug;
1081                 }
1082         }
1083         if ($new_info) {
1084                 print STDERR "$name: $new_info old symbols have updated info\n";
1085                 if (!$do_rewrite) {
1086                         print STDERR "You should do a rewrite to fix this.\n";
1087                 }
1088         } else {
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 {
1180    return $config{version};
1181 }
1182
1183 sub print_def_file
1184 {
1185         (*OUT,my $name,*nums,my @symbols)=@_;
1186         my $n = 1; my @e; my @r; my @v; my $prev="";
1187         my $liboptions="";
1188         my $libname = $name;
1189         my $http_vendor = 'www.openssl.org/';
1190         my $version = get_version();
1191         my $what = "OpenSSL: implementation of Secure Socket Layer";
1192         my $description = "$what $version, $name - http://$http_vendor";
1193         my $prevsymversion = "", $prevprevsymversion = "";
1194         # For VMS
1195         my $prevnum = 0;
1196         my $symvtextcount = 0;
1197
1198         if ($W32)
1199                 { $libname.="32"; }
1200         elsif ($OS2)
1201                 { # DLL names should not clash on the whole system.
1202                   # However, they should not have any particular relationship
1203                   # to the name of the static library.  Chose descriptive names
1204                   # (must be at most 8 chars).
1205                   my %translate = (ssl => 'open_ssl', crypto => 'cryptssl');
1206                   $libname = $translate{$name} || $name;
1207                   $liboptions = <<EOO;
1208 INITINSTANCE
1209 DATA MULTIPLE NONSHARED
1210 EOO
1211                   # Vendor field can't contain colon, drat; so we omit http://
1212                   $description = "\@#$http_vendor:$version#\@$what; DLL for library $name.  Build for EMX -Zmtd";
1213                 }
1214
1215         if ($W32 || $OS2)
1216                 {
1217                 print OUT <<"EOF";
1218 ;
1219 ; Definition file for the DLL version of the $name library from OpenSSL
1220 ;
1221
1222 LIBRARY         $libname        $liboptions
1223
1224 EOF
1225
1226                 print "EXPORTS\n";
1227                 }
1228         elsif ($VMS)
1229                 {
1230                 print OUT <<"EOF";
1231 CASE_SENSITIVE=YES
1232 SYMBOL_VECTOR=(-
1233 EOF
1234                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1235                 }
1236
1237         (@r)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:FUNCTION/,@symbols);
1238         (@v)=grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:VARIABLE/,@symbols);
1239         if ($VMS) {
1240             # VMS needs to have the symbols on slot number order
1241             @symbols=(map { $_->[1] }
1242                       sort { $a->[0] <=> $b->[0] }
1243                       map { (my $s, my $i) = $_ =~ /^(.*?)\\(.*)$/;
1244                             die "Error: $s doesn't have a number assigned\n"
1245                                 if !defined($nums{$s});
1246                             (my $n, my @rest) = split /\\/, $nums{$s};
1247                             [ $n, $_ ] } (@e, @r, @v));
1248         } else {
1249             @symbols=((sort @e),(sort @r), (sort @v));
1250         }
1251
1252         my ($baseversion, $currversion) = get_openssl_version();
1253         my $thisversion;
1254         do {
1255                 if (!defined($thisversion)) {
1256                         $thisversion = $baseversion;
1257                 } else {
1258                         $thisversion = get_next_version($thisversion);
1259                 }
1260                 foreach $sym (@symbols) {
1261                         (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1262                         my $v = 0;
1263                         $v = 1 if $i =~ /^.*?:.*?:VARIABLE/;
1264                         if (!defined($nums{$s})) {
1265                                 die "Error: $s does not have a number assigned\n"
1266                                         if(!$do_update);
1267                         } else {
1268                                 (my $n, my $symversion, my $dummy) = split /\\/, $nums{$s};
1269                                 next if $symversion ne $thisversion;
1270                                 my %pf = ();
1271                                 my $p = ($i =~ /^[^:]*:([^:]*):/,$1);
1272                                 my $a = ($i =~ /^[^:]*:[^:]*:[^:]*:([^:]*)/,$1);
1273                                 if (is_valid($p,1) && is_valid($a,0)) {
1274                                         my $s2 = ($s =~ /^(.*?)(\{[0-9]+\})?$/, $1);
1275                                         if ($prev eq $s2) {
1276                                                 print STDERR "Warning: Symbol '",$s2,
1277                                                         "' redefined. old=",($nums{$prev} =~ /^(.*?)\\/,$1),
1278                                                         ", new=",($nums{$s2} =~ /^(.*?)\\/,$1),"\n";
1279                                         }
1280                                         $prev = $s2;    # To warn about duplicates...
1281                                         if($linux) {
1282                                                 if ($symversion ne $prevsymversion) {
1283                                                         if ($prevsymversion ne "") {
1284                                                                 if ($prevprevsymversion ne "") {
1285                                                                         print OUT "} OPENSSL_"
1286                                                                                                 ."$prevprevsymversion;\n\n";
1287                                                                 } else {
1288                                                                         print OUT "};\n\n";
1289                                                                 }
1290                                                         }
1291                                                         print OUT "OPENSSL_$symversion {\n    global:\n";
1292                                                         $prevprevsymversion = $prevsymversion;
1293                                                         $prevsymversion = $symversion;
1294                                                 }
1295                                                 print OUT "        $s2;\n";
1296                                         } elsif ($VMS) {
1297                                             while(++$prevnum < $n) {
1298                                                 my $symline=" ,SPARE -\n  ,SPARE -\n";
1299                                                 if ($symvtextcount + length($symline) - 2 > 1024) {
1300                                                     print OUT ")\nSYMBOL_VECTOR=(-\n";
1301                                                     $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1302                                                 }
1303                                                 if ($symvtextcount == 16) {
1304                                                     # Take away first comma
1305                                                     $symline =~ s/,//;
1306                                                 }
1307                                                 print OUT $symline;
1308                                                 $symvtextcount += length($symline) - 2;
1309                                             }
1310                                             (my $s_uc = $s) =~ tr/a-z/A-Z/;
1311                                             my $symtype=
1312                                                 $v ? "DATA" : "PROCEDURE";
1313                                             my $symline=
1314                                                 ($s_uc ne $s
1315                                                  ? " ,$s_uc/$s=$symtype -\n  ,$s=$symtype -\n"
1316                                                  : " ,$s=$symtype -\n  ,SPARE -\n");
1317                                             if ($symvtextcount + length($symline) - 2 > 1024) {
1318                                                 print OUT ")\nSYMBOL_VECTOR=(-\n";
1319                                                 $symvtextcount = 16; # length of "SYMBOL_VECTOR=(-"
1320                                             }
1321                                             if ($symvtextcount == 16) {
1322                                                 # Take away first comma
1323                                                 $symline =~ s/,//;
1324                                             }
1325                                             print OUT $symline;
1326                                             $symvtextcount += length($symline) - 2;
1327                                         } elsif($v && !$OS2) {
1328                                                 printf OUT "    %s%-39s @%-8d DATA\n",
1329                                                                 ($W32)?"":"_",$s2,$n;
1330                                         } else {
1331                                                 printf OUT "    %s%-39s @%d\n",
1332                                                                 ($W32||$OS2)?"":"_",$s2,$n;
1333                                         }
1334                                 }
1335                         }
1336                 }
1337         } while ($thisversion ne $currversion);
1338         if ($linux) {
1339                 if ($prevprevsymversion ne "") {
1340                         print OUT "    local: *;\n} OPENSSL_$prevprevsymversion;\n\n";
1341                 } else {
1342                         print OUT "    local: *;\n};\n\n";
1343                 }
1344         } elsif ($VMS) {
1345             print OUT ")\n";
1346             (my $libvmaj, my $libvmin, my $libvedit) =
1347                 $currversion =~ /^(\d+)_(\d+)_(\d+)$/;
1348             # The reason to multiply the edit number with 100 is to make space
1349             # for the possibility that we want to encode the patch letters
1350             print OUT "GSMATCH=LEQUAL,",($libvmaj * 100 + $libvmin),",",($libvedit * 100),"\n";
1351         }
1352         printf OUT "\n";
1353 }
1354
1355 sub load_numbers
1356 {
1357         my($name)=@_;
1358         my(@a,%ret);
1359         my $prevversion;
1360
1361         $max_num = 0;
1362         $num_noinfo = 0;
1363         $prev = "";
1364         $prev_cnt = 0;
1365
1366         my ($baseversion, $currversion) = get_openssl_version();
1367
1368         open(IN,"<$name") || die "unable to open $name:$!\n";
1369         while (<IN>) {
1370                 s|\R$||;        # Better chomp
1371                 s/#.*$//;
1372                 next if /^\s*$/;
1373                 @a=split;
1374                 if (defined $ret{$a[0]}) {
1375                         # This is actually perfectly OK
1376                         #print STDERR "Warning: Symbol '",$a[0],"' redefined. old=",$ret{$a[0]},", new=",$a[1],"\n";
1377                 }
1378                 if ($max_num > $a[1]) {
1379                         print STDERR "Warning: Number decreased from ",$max_num," to ",$a[1],"\n";
1380                 }
1381                 elsif ($max_num == $a[1]) {
1382                         # This is actually perfectly OK
1383                         #print STDERR "Warning: Symbol ",$a[0]," has same number as previous ",$prev,": ",$a[1],"\n";
1384                         if ($a[0] eq $prev) {
1385                                 $prev_cnt++;
1386                                 $a[0] .= "{$prev_cnt}";
1387                         }
1388                 }
1389                 else {
1390                         $prev_cnt = 0;
1391                 }
1392                 if ($#a < 2) {
1393                         # Existence will be proven later, in do_defs
1394                         $ret{$a[0]}=$a[1];
1395                         $num_noinfo++;
1396                 } else {
1397                         #Sanity check the version number
1398                         if (defined $prevversion) {
1399                                 check_version_lte($prevversion, $a[2]);
1400                         }
1401                         check_version_lte($a[2], $currversion);
1402                         $prevversion = $a[2];
1403                         $ret{$a[0]}=$a[1]."\\".$a[2]."\\".$a[3]; # \\ is a special marker
1404                 }
1405                 $max_num = $a[1] if $a[1] > $max_num;
1406                 $prev=$a[0];
1407         }
1408         if ($num_noinfo) {
1409                 print STDERR "Warning: $num_noinfo symbols were without info.";
1410                 if ($do_rewrite) {
1411                         printf STDERR "  The rewrite will fix this.\n";
1412                 } else {
1413                         printf STDERR "  You should do a rewrite to fix this.\n";
1414                 }
1415         }
1416         close(IN);
1417         return(%ret);
1418 }
1419
1420 sub parse_number
1421 {
1422         (my $str, my $what) = @_;
1423         (my $n, my $v, my $i) = split(/\\/,$str);
1424         if ($what eq "n") {
1425                 return $n;
1426         } else {
1427                 return $i;
1428         }
1429 }
1430
1431 sub rewrite_numbers
1432 {
1433         (*OUT,$name,*nums,@symbols)=@_;
1434         my $thing;
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         my @r = grep(/^\w+(\{[0-9]+\})?\\.*?:.*?:\w+\(\w+\)/,@symbols);
1485         my $r; my %r; my %rsyms;
1486         foreach $r (@r) {
1487                 (my $s, my $i) = split /\\/, $r;
1488                 my $a = $1 if $i =~ /^.*?:.*?:\w+\((\w+)\)/;
1489                 $i =~ s/^(.*?:.*?:\w+)\(\w+\)/$1/;
1490                 $r{$a} = $s."\\".$i;
1491                 $rsyms{$s} = 1;
1492         }
1493
1494         foreach $sym (@symbols) {
1495                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1496                 next if $i =~ /^.*?:.*?:\w+\(\w+\)/;
1497                 next if defined($rsyms{$sym});
1498                 die "ERROR: Symbol $sym had no info attached to it."
1499                     if $i eq "";
1500                 if (!exists $nums{$s}) {
1501                         $new_syms++;
1502                         my $s2 = $s;
1503                         $s2 =~ s/\{[0-9]+\}$//;
1504                         printf OUT "%s%-39s %d\t%s\t%s\n","",$s2, ++$start_num,$vers,$i;
1505                         if (exists $r{$s}) {
1506                                 ($s, $i) = split /\\/,$r{$s};
1507                                 $s =~ s/\{[0-9]+\}$//;
1508                                 printf OUT "%s%-39s %d\t%s\t%s\n","",$s, $start_num,$vers,$i;
1509                         }
1510                 }
1511         }
1512         if($new_syms) {
1513                 print STDERR "$name: Added $new_syms new symbols\n";
1514         } else {
1515                 print STDERR "$name: No new symbols added\n";
1516         }
1517 }
1518
1519 sub check_existing
1520 {
1521         (*nums, my @symbols)=@_;
1522         my %existing; my @remaining;
1523         @remaining=();
1524         foreach $sym (@symbols) {
1525                 (my $s, my $i) = $sym =~ /^(.*?)\\(.*)$/;
1526                 $existing{$s}=1;
1527         }
1528         foreach $sym (keys %nums) {
1529                 if (!exists $existing{$sym}) {
1530                         push @remaining, $sym;
1531                 }
1532         }
1533         if(@remaining) {
1534                 print STDERR "The following symbols do not seem to exist:\n";
1535                 foreach $sym (@remaining) {
1536                         print STDERR "\t",$sym,"\n";
1537                 }
1538         }
1539 }
1540
1541 sub count_parens
1542 {
1543         my $line = shift(@_);
1544
1545         my $open = $line =~ tr/\(//;
1546         my $close = $line =~ tr/\)//;
1547
1548         return $open - $close;
1549 }
1550
1551 #Parse opensslv.h to get the current version number. Also work out the base
1552 #version, i.e. the lowest version number that is binary compatible with this
1553 #version
1554 sub get_openssl_version()
1555 {
1556         my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
1557         open (IN, "$fn") || die "Can't open opensslv.h";
1558
1559         while(<IN>) {
1560                 if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
1561                         my $suffix = $2;
1562                         (my $baseversion = $1) =~ s/\./_/g;
1563                         close IN;
1564                         return ($baseversion."0", $baseversion.$suffix);
1565                 }
1566         }
1567         die "Can't find OpenSSL version number\n";
1568 }
1569
1570 #Given an OpenSSL version number, calculate the next version number. If the
1571 #version number gets to a.b.czz then we go to a.b.(c+1)
1572 sub get_next_version()
1573 {
1574         my $thisversion = shift;
1575
1576         my ($base, $letter) = $thisversion =~ /^(\d_\d_\d)([a-z]{0,2})$/;
1577
1578         if ($letter eq "zz") {
1579                 my $lastnum = substr($base, -1);
1580                 return substr($base, 0, length($base)-1).(++$lastnum);
1581         }
1582         return $base.get_next_letter($letter);
1583 }
1584
1585 #Given the letters off the end of an OpenSSL version string, calculate what
1586 #the letters for the next release would be.
1587 sub get_next_letter()
1588 {
1589         my $thisletter = shift;
1590         my $baseletter = "";
1591         my $endletter;
1592
1593         if ($thisletter eq "") {
1594                 return "a";
1595         }
1596         if ((length $thisletter) > 1) {
1597                 ($baseletter, $endletter) = $thisletter =~ /([a-z]+)([a-z])/;
1598         } else {
1599                 $endletter = $thisletter;
1600         }
1601
1602         if ($endletter eq "z") {
1603                 return $thisletter."a";
1604         } else {
1605                 return $baseletter.(++$endletter);
1606         }
1607 }
1608
1609 #Check if a version is less than or equal to the current version. Its a fatal
1610 #error if not. They must also only differ in letters, or the last number (i.e.
1611 #the first two numbers must be the same)
1612 sub check_version_lte()
1613 {
1614         my ($testversion, $currversion) = @_;
1615         my $lentv;
1616         my $lencv;
1617         my $cvbase;
1618
1619         my ($cvnums) = $currversion =~ /^(\d_\d_\d)[a-z]*$/;
1620         my ($tvnums) = $testversion =~ /^(\d_\d_\d)[a-z]*$/;
1621
1622         #Die if we can't parse the version numbers or they don't look sane
1623         die "Invalid version number: $testversion and $currversion\n"
1624                 if (!defined($cvnums) || !defined($tvnums)
1625                         || length($cvnums) != 5
1626                         || length($tvnums) != 5);
1627
1628         #If the base versions (without letters) don't match check they only differ
1629         #in the last number
1630         if ($cvnums ne $tvnums) {
1631                 die "Invalid version number: $testversion "
1632                         ."for current version $currversion\n"
1633                         if (substr($cvnums, -1) < substr($tvnums, -1)
1634                                 || substr($cvnums, 0, 4) ne substr($tvnums, 0, 4));
1635                 return;
1636         }
1637         #If we get here then the base version (i.e. the numbers) are the same - they
1638         #only differ in the letters
1639
1640         $lentv = length $testversion;
1641         $lencv = length $currversion;
1642
1643         #If the testversion has more letters than the current version then it must
1644         #be later (or malformed)
1645         if ($lentv > $lencv) {
1646                 die "Invalid version number: $testversion "
1647                         ."is greater than $currversion\n";
1648         }
1649
1650         #Get the last letter from the current version
1651         my ($cvletter) = $currversion =~ /([a-z])$/;
1652         if (defined $cvletter) {
1653                 ($cvbase) = $currversion =~ /(\d_\d_\d[a-z]*)$cvletter$/;
1654         } else {
1655                 $cvbase = $currversion;
1656         }
1657         die "Unable to parse version number $currversion" if (!defined $cvbase);
1658         my $tvbase;
1659         my ($tvletter) = $testversion =~ /([a-z])$/;
1660         if (defined $tvletter) {
1661                 ($tvbase) = $testversion =~ /(\d_\d_\d[a-z]*)$tvletter$/;
1662         } else {
1663                 $tvbase = $testversion;
1664         }
1665         die "Unable to parse version number $testversion" if (!defined $tvbase);
1666
1667         if ($lencv > $lentv) {
1668                 #If current version has more letters than testversion then testversion
1669                 #minus the final letter must be a substring of the current version
1670                 die "Invalid version number $testversion "
1671                         ."is greater than $currversion or is invalid\n"
1672                         if (index($cvbase, $tvbase) != 0);
1673         } else {
1674                 #If both versions have the same number of letters then they must be
1675                 #equal up to the last letter, and the last letter in testversion must
1676                 #be less than or equal to the last letter in current version.
1677                 die "Invalid version number $testversion "
1678                         ."is greater than $currversion\n"
1679                         if (($cvbase ne $tvbase) && ($tvletter gt $cvletter));
1680         }
1681 }
1682
1683 sub do_deprecated()
1684 {
1685         my ($decl, $plats, $algs) = @_;
1686         $decl =~ /^\s*(DEPRECATEDIN_\d+_\d+_\d+)\s*\((.*)\)\s*$/
1687             or die "Bad DEPRECTEDIN: $decl\n";
1688         my $info1 .= "#INFO:";
1689         $info1 .= join(',', @{$plats}) . ":";
1690         my $info2 = $info1;
1691         $info1 .= join(',',@{$algs}, $1) . ";";
1692         $info2 .= join(',',@{$algs}) . ";";
1693         return $info1 . $2 . ";" . $info2;
1694 }