1#! /usr/bin/env perl 2# Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the Apache License 2.0 (the "License"). You may not use 5# this file except in compliance with the License. You can obtain a copy 6# in the file LICENSE in the source distribution or at 7# https://www.openssl.org/source/license.html 8 9package OpenSSL::ParseC; 10 11use strict; 12use warnings; 13 14use Exporter; 15use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); 16$VERSION = "0.9"; 17@ISA = qw(Exporter); 18@EXPORT = qw(parse); 19 20# Global handler data 21my @preprocessor_conds; # A list of simple preprocessor conditions, 22 # each item being a list of macros defined 23 # or not defined. 24 25# Handler helpers 26sub all_conds { 27 return map { ( @$_ ) } @preprocessor_conds; 28} 29 30# A list of handlers that will look at a "complete" string and try to 31# figure out what to make of it. 32# Each handler is a hash with the following keys: 33# 34# regexp a regexp to compare the "complete" string with. 35# checker a function that does a more complex comparison. 36# Use this instead of regexp if that isn't enough. 37# massager massages the "complete" string into an array with 38# the following elements: 39# 40# [0] String that needs further processing (this 41# applies to typedefs of structs), or empty. 42# [1] The name of what was found. 43# [2] A character that denotes what type of thing 44# this is: 'F' for function, 'S' for struct, 45# 'T' for typedef, 'M' for macro, 'V' for 46# variable. 47# [3] Return type (only for type 'F' and 'V') 48# [4] Value (for type 'M') or signature (for type 'F', 49# 'V', 'T' or 'S') 50# [5...] The list of preprocessor conditions this is 51# found in, as in checks for macro definitions 52# (stored as the macro's name) or the absence 53# of definition (stored as the macro's name 54# prefixed with a '!' 55# 56# If the massager returns an empty list, it means the 57# "complete" string has side effects but should otherwise 58# be ignored. 59# If the massager is undefined, the "complete" string 60# should be ignored. 61my @opensslcpphandlers = ( 62 ################################################################## 63 # OpenSSL CPP specials 64 # 65 # These are used to convert certain pre-precessor expressions into 66 # others that @cpphandlers have a better chance to understand. 67 68 # This changes any OPENSSL_NO_DEPRECATED_x_y[_z] check to a check of 69 # OPENSSL_NO_DEPRECATEDIN_x_y[_z]. That's due to <openssl/macros.h> 70 # creating OPENSSL_NO_DEPRECATED_x_y[_z], but the ordinals files using 71 # DEPRECATEDIN_x_y[_z]. 72 { regexp => qr/#if(def|ndef) OPENSSL_NO_DEPRECATED_(\d+_\d+(?:_\d+)?)$/, 73 massager => sub { 74 return (<<"EOF"); 75#if$1 OPENSSL_NO_DEPRECATEDIN_$2 76EOF 77 } 78 } 79); 80my @cpphandlers = ( 81 ################################################################## 82 # CPP stuff 83 84 { regexp => qr/#ifdef ?(.*)/, 85 massager => sub { 86 my %opts; 87 if (ref($_[$#_]) eq "HASH") { 88 %opts = %{$_[$#_]}; 89 pop @_; 90 } 91 push @preprocessor_conds, [ $1 ]; 92 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 93 if $opts{debug}; 94 return (); 95 }, 96 }, 97 { regexp => qr/#ifndef ?(.*)/, 98 massager => sub { 99 my %opts; 100 if (ref($_[$#_]) eq "HASH") { 101 %opts = %{$_[$#_]}; 102 pop @_; 103 } 104 push @preprocessor_conds, [ '!'.$1 ]; 105 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 106 if $opts{debug}; 107 return (); 108 }, 109 }, 110 { regexp => qr/#if (0|1)/, 111 massager => sub { 112 my %opts; 113 if (ref($_[$#_]) eq "HASH") { 114 %opts = %{$_[$#_]}; 115 pop @_; 116 } 117 if ($1 eq "1") { 118 push @preprocessor_conds, [ "TRUE" ]; 119 } else { 120 push @preprocessor_conds, [ "!TRUE" ]; 121 } 122 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 123 if $opts{debug}; 124 return (); 125 }, 126 }, 127 { regexp => qr/#if ?(.*)/, 128 massager => sub { 129 my %opts; 130 if (ref($_[$#_]) eq "HASH") { 131 %opts = %{$_[$#_]}; 132 pop @_; 133 } 134 my @results = (); 135 my $conds = $1; 136 if ($conds =~ m|^defined<<<\(([^\)]*)\)>>>(.*)$|) { 137 push @results, $1; # Handle the simple case 138 my $rest = $2; 139 my $re = qr/^(?:\|\|defined<<<\([^\)]*\)>>>)*$/; 140 print STDERR "DEBUG[",$opts{debug_type},"]: Matching '$rest' with '$re'\n" 141 if $opts{debug}; 142 if ($rest =~ m/$re/) { 143 my @rest = split /\|\|/, $rest; 144 shift @rest; 145 foreach (@rest) { 146 m|^defined<<<\(([^\)]*)\)>>>$|; 147 die "Something wrong...$opts{PLACE}" if $1 eq ""; 148 push @results, $1; 149 } 150 } else { 151 $conds =~ s/<<<|>>>//g; 152 warn "Warning: complicated #if expression(1): $conds$opts{PLACE}" 153 if $opts{warnings}; 154 } 155 } elsif ($conds =~ m|^!defined<<<\(([^\)]*)\)>>>(.*)$|) { 156 push @results, '!'.$1; # Handle the simple case 157 my $rest = $2; 158 my $re = qr/^(?:\&\&!defined<<<\([^\)]*\)>>>)*$/; 159 print STDERR "DEBUG[",$opts{debug_type},"]: Matching '$rest' with '$re'\n" 160 if $opts{debug}; 161 if ($rest =~ m/$re/) { 162 my @rest = split /\&\&/, $rest; 163 shift @rest; 164 foreach (@rest) { 165 m|^!defined<<<\(([^\)]*)\)>>>$|; 166 die "Something wrong...$opts{PLACE}" if $1 eq ""; 167 push @results, '!'.$1; 168 } 169 } else { 170 $conds =~ s/<<<|>>>//g; 171 warn "Warning: complicated #if expression(2): $conds$opts{PLACE}" 172 if $opts{warnings}; 173 } 174 } else { 175 $conds =~ s/<<<|>>>//g; 176 warn "Warning: complicated #if expression(3): $conds$opts{PLACE}" 177 if $opts{warnings}; 178 } 179 print STDERR "DEBUG[",$opts{debug_type},"]: Added preprocessor conds: '", join("', '", @results), "'\n" 180 if $opts{debug}; 181 push @preprocessor_conds, [ @results ]; 182 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 183 if $opts{debug}; 184 return (); 185 }, 186 }, 187 { regexp => qr/#elif (.*)/, 188 massager => sub { 189 my %opts; 190 if (ref($_[$#_]) eq "HASH") { 191 %opts = %{$_[$#_]}; 192 pop @_; 193 } 194 die "An #elif without corresponding condition$opts{PLACE}" 195 if !@preprocessor_conds; 196 pop @preprocessor_conds; 197 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 198 if $opts{debug}; 199 return (<<"EOF"); 200#if $1 201EOF 202 }, 203 }, 204 { regexp => qr/#else/, 205 massager => sub { 206 my %opts; 207 if (ref($_[$#_]) eq "HASH") { 208 %opts = %{$_[$#_]}; 209 pop @_; 210 } 211 die "An #else without corresponding condition$opts{PLACE}" 212 if !@preprocessor_conds; 213 # Invert all conditions on the last level 214 my $stuff = pop @preprocessor_conds; 215 push @preprocessor_conds, [ 216 map { m|^!(.*)$| ? $1 : '!'.$_ } @$stuff 217 ]; 218 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 219 if $opts{debug}; 220 return (); 221 }, 222 }, 223 { regexp => qr/#endif ?/, 224 massager => sub { 225 my %opts; 226 if (ref($_[$#_]) eq "HASH") { 227 %opts = %{$_[$#_]}; 228 pop @_; 229 } 230 die "An #endif without corresponding condition$opts{PLACE}" 231 if !@preprocessor_conds; 232 pop @preprocessor_conds; 233 print STDERR "DEBUG[",$opts{debug_type},"]: preprocessor level: ", scalar(@preprocessor_conds), "\n" 234 if $opts{debug}; 235 return (); 236 }, 237 }, 238 { regexp => qr/#define ([[:alpha:]_]\w*)(<<<\(.*?\)>>>)?( (.*))?/, 239 massager => sub { 240 my $name = $1; 241 my $params = $2; 242 my $spaceval = $3||""; 243 my $val = $4||""; 244 return ("", 245 $1, 'M', "", $params ? "$name$params$spaceval" : $val, 246 all_conds()); } 247 }, 248 { regexp => qr/#.*/, 249 massager => sub { return (); } 250 }, 251 ); 252 253my @opensslchandlers = ( 254 ################################################################## 255 # OpenSSL C specials 256 # 257 # They are really preprocessor stuff, but they look like C stuff 258 # to this parser. All of these do replacements, anything else is 259 # an error. 260 261 ##### 262 # Deprecated stuff, by OpenSSL release. 263 264 # OSSL_DEPRECATEDIN_x_y[_z] is simply ignored. Such declarations are 265 # supposed to be guarded with an '#ifdef OPENSSL_NO_DEPRECATED_x_y[_z]' 266 { regexp => qr/OSSL_DEPRECATEDIN_\d+_\d+(?:_\d+)?\s+(.*)/, 267 massager => sub { return $1; }, 268 }, 269 { regexp => qr/OSSL_DEPRECATEDIN_\d+_\d+(?:_\d+)?_FOR<<<.*>>>(.*)/, 270 massager => sub { return $1; }, 271 }, 272 { regexp => qr/(.*?)\s+OSSL_DEPRECATEDIN_\d+_\d+(?:_\d+)?\s+(.*)/, 273 massager => sub { return "$1 $2"; }, 274 }, 275 { regexp => qr/(.*?)\s+OSSL_DEPRECATEDIN_\d+_\d+(?:_\d+)?_FOR<<<.*>>>(.*)/, 276 massager => sub { return "$1 $2"; }, 277 }, 278 279 ##### 280 # Core stuff 281 282 # OSSL_CORE_MAKE_FUNC is a macro to create the necessary data and inline 283 # function the libcrypto<->provider interface 284 { regexp => qr/OSSL_CORE_MAKE_FUNC<<<\((.*?),(.*?),(.*?)\)>>>/, 285 massager => sub { 286 return (<<"EOF"); 287typedef $1 OSSL_FUNC_$2_fn$3; 288static ossl_inline OSSL_FUNC_$2_fn *OSSL_FUNC_$2(const OSSL_DISPATCH *opf); 289EOF 290 }, 291 }, 292 293 ##### 294 # LHASH stuff 295 296 # LHASH_OF(foo) is used as a type, but the chandlers won't take it 297 # gracefully, so we expand it here. 298 { regexp => qr/(.*)\bLHASH_OF<<<\((.*?)\)>>>(.*)/, 299 massager => sub { return ("$1struct lhash_st_$2$3"); } 300 }, 301 { regexp => qr/DEFINE_LHASH_OF(?:_INTERNAL|_EX)?<<<\((.*)\)>>>/, 302 massager => sub { 303 return (<<"EOF"); 304static ossl_inline LHASH_OF($1) * lh_$1_new(unsigned long (*hfn)(const $1 *), 305 int (*cfn)(const $1 *, const $1 *)); 306static ossl_inline void lh_$1_free(LHASH_OF($1) *lh); 307static ossl_inline $1 *lh_$1_insert(LHASH_OF($1) *lh, $1 *d); 308static ossl_inline $1 *lh_$1_delete(LHASH_OF($1) *lh, const $1 *d); 309static ossl_inline $1 *lh_$1_retrieve(LHASH_OF($1) *lh, const $1 *d); 310static ossl_inline int lh_$1_error(LHASH_OF($1) *lh); 311static ossl_inline unsigned long lh_$1_num_items(LHASH_OF($1) *lh); 312static ossl_inline void lh_$1_node_stats_bio(const LHASH_OF($1) *lh, BIO *out); 313static ossl_inline void lh_$1_node_usage_stats_bio(const LHASH_OF($1) *lh, 314 BIO *out); 315static ossl_inline void lh_$1_stats_bio(const LHASH_OF($1) *lh, BIO *out); 316static ossl_inline unsigned long lh_$1_get_down_load(LHASH_OF($1) *lh); 317static ossl_inline void lh_$1_set_down_load(LHASH_OF($1) *lh, unsigned long dl); 318static ossl_inline void lh_$1_doall(LHASH_OF($1) *lh, void (*doall)($1 *)); 319LHASH_OF($1) 320EOF 321 } 322 }, 323 324 ##### 325 # STACK stuff 326 327 # STACK_OF(foo) is used as a type, but the chandlers won't take it 328 # gracefully, so we expand it here. 329 { regexp => qr/(.*)\bSTACK_OF<<<\((.*?)\)>>>(.*)/, 330 massager => sub { return ("$1struct stack_st_$2$3"); } 331 }, 332# { regexp => qr/(.*)\bSTACK_OF\((.*?)\)(.*)/, 333# massager => sub { 334# my $before = $1; 335# my $stack_of = "struct stack_st_$2"; 336# my $after = $3; 337# if ($after =~ m|^\w|) { $after = " ".$after; } 338# return ("$before$stack_of$after"); 339# } 340# }, 341 { regexp => qr/SKM_DEFINE_STACK_OF<<<\((.*),\s*(.*),\s*(.*)\)>>>/, 342 massager => sub { 343 return (<<"EOF"); 344STACK_OF($1); 345typedef int (*sk_$1_compfunc)(const $3 * const *a, const $3 *const *b); 346typedef void (*sk_$1_freefunc)($3 *a); 347typedef $3 * (*sk_$1_copyfunc)(const $3 *a); 348static ossl_inline int sk_$1_num(const STACK_OF($1) *sk); 349static ossl_inline $2 *sk_$1_value(const STACK_OF($1) *sk, int idx); 350static ossl_inline STACK_OF($1) *sk_$1_new(sk_$1_compfunc compare); 351static ossl_inline STACK_OF($1) *sk_$1_new_null(void); 352static ossl_inline STACK_OF($1) *sk_$1_new_reserve(sk_$1_compfunc compare, 353 int n); 354static ossl_inline int sk_$1_reserve(STACK_OF($1) *sk, int n); 355static ossl_inline void sk_$1_free(STACK_OF($1) *sk); 356static ossl_inline void sk_$1_zero(STACK_OF($1) *sk); 357static ossl_inline $2 *sk_$1_delete(STACK_OF($1) *sk, int i); 358static ossl_inline $2 *sk_$1_delete_ptr(STACK_OF($1) *sk, $2 *ptr); 359static ossl_inline int sk_$1_push(STACK_OF($1) *sk, $2 *ptr); 360static ossl_inline int sk_$1_unshift(STACK_OF($1) *sk, $2 *ptr); 361static ossl_inline $2 *sk_$1_pop(STACK_OF($1) *sk); 362static ossl_inline $2 *sk_$1_shift(STACK_OF($1) *sk); 363static ossl_inline void sk_$1_pop_free(STACK_OF($1) *sk, 364 sk_$1_freefunc freefunc); 365static ossl_inline int sk_$1_insert(STACK_OF($1) *sk, $2 *ptr, int idx); 366static ossl_inline $2 *sk_$1_set(STACK_OF($1) *sk, int idx, $2 *ptr); 367static ossl_inline int sk_$1_find(STACK_OF($1) *sk, $2 *ptr); 368static ossl_inline int sk_$1_find_ex(STACK_OF($1) *sk, $2 *ptr); 369static ossl_inline void sk_$1_sort(STACK_OF($1) *sk); 370static ossl_inline int sk_$1_is_sorted(const STACK_OF($1) *sk); 371static ossl_inline STACK_OF($1) * sk_$1_dup(const STACK_OF($1) *sk); 372static ossl_inline STACK_OF($1) *sk_$1_deep_copy(const STACK_OF($1) *sk, 373 sk_$1_copyfunc copyfunc, 374 sk_$1_freefunc freefunc); 375static ossl_inline sk_$1_compfunc sk_$1_set_cmp_func(STACK_OF($1) *sk, 376 sk_$1_compfunc compare); 377EOF 378 } 379 }, 380 { regexp => qr/SKM_DEFINE_STACK_OF_INTERNAL<<<\((.*),\s*(.*),\s*(.*)\)>>>/, 381 massager => sub { 382 return (<<"EOF"); 383STACK_OF($1); 384typedef int (*sk_$1_compfunc)(const $3 * const *a, const $3 *const *b); 385typedef void (*sk_$1_freefunc)($3 *a); 386typedef $3 * (*sk_$1_copyfunc)(const $3 *a); 387static ossl_unused ossl_inline $2 *ossl_check_$1_type($2 *ptr); 388static ossl_unused ossl_inline const OPENSSL_STACK *ossl_check_const_$1_sk_type(const STACK_OF($1) *sk); 389static ossl_unused ossl_inline OPENSSL_sk_compfunc ossl_check_$1_compfunc_type(sk_$1_compfunc cmp); 390static ossl_unused ossl_inline OPENSSL_sk_copyfunc ossl_check_$1_copyfunc_type(sk_$1_copyfunc cpy); 391static ossl_unused ossl_inline OPENSSL_sk_freefunc ossl_check_$1_freefunc_type(sk_$1_freefunc fr); 392EOF 393 } 394 }, 395 { regexp => qr/DEFINE_SPECIAL_STACK_OF<<<\((.*),\s*(.*)\)>>>/, 396 massager => sub { return ("SKM_DEFINE_STACK_OF($1,$2,$2)"); }, 397 }, 398 { regexp => qr/DEFINE_STACK_OF<<<\((.*)\)>>>/, 399 massager => sub { return ("SKM_DEFINE_STACK_OF($1,$1,$1)"); }, 400 }, 401 { regexp => qr/DEFINE_SPECIAL_STACK_OF_CONST<<<\((.*),\s*(.*)\)>>>/, 402 massager => sub { return ("SKM_DEFINE_STACK_OF($1,const $2,$2)"); }, 403 }, 404 { regexp => qr/DEFINE_STACK_OF_CONST<<<\((.*)\)>>>/, 405 massager => sub { return ("SKM_DEFINE_STACK_OF($1,const $1,$1)"); }, 406 }, 407 408 ##### 409 # ASN1 stuff 410 { regexp => qr/DECLARE_ASN1_ITEM<<<\((.*)\)>>>/, 411 massager => sub { 412 return (<<"EOF"); 413const ASN1_ITEM *$1_it(void); 414EOF 415 }, 416 }, 417 { regexp => qr/DECLARE_ASN1_ENCODE_FUNCTIONS_only<<<\((.*),\s*(.*)\)>>>/, 418 massager => sub { 419 return (<<"EOF"); 420int d2i_$2(void); 421int i2d_$2(void); 422EOF 423 }, 424 }, 425 { regexp => qr/DECLARE_ASN1_ENCODE_FUNCTIONS<<<\((.*),\s*(.*),\s*(.*)\)>>>/, 426 massager => sub { 427 return (<<"EOF"); 428int d2i_$3(void); 429int i2d_$3(void); 430DECLARE_ASN1_ITEM($2) 431EOF 432 }, 433 }, 434 { regexp => qr/DECLARE_ASN1_ENCODE_FUNCTIONS_name<<<\((.*),\s*(.*)\)>>>/, 435 massager => sub { 436 return (<<"EOF"); 437int d2i_$2(void); 438int i2d_$2(void); 439DECLARE_ASN1_ITEM($2) 440EOF 441 }, 442 }, 443 { regexp => qr/DECLARE_ASN1_ALLOC_FUNCTIONS_name<<<\((.*),\s*(.*)\)>>>/, 444 massager => sub { 445 return (<<"EOF"); 446int $2_free(void); 447int $2_new(void); 448EOF 449 }, 450 }, 451 { regexp => qr/DECLARE_ASN1_ALLOC_FUNCTIONS<<<\((.*)\)>>>/, 452 massager => sub { 453 return (<<"EOF"); 454int $1_free(void); 455int $1_new(void); 456EOF 457 }, 458 }, 459 { regexp => qr/DECLARE_ASN1_FUNCTIONS_name<<<\((.*),\s*(.*)\)>>>/, 460 massager => sub { 461 return (<<"EOF"); 462int d2i_$2(void); 463int i2d_$2(void); 464int $2_free(void); 465int $2_new(void); 466DECLARE_ASN1_ITEM($2) 467EOF 468 }, 469 }, 470 { regexp => qr/DECLARE_ASN1_FUNCTIONS<<<\((.*)\)>>>/, 471 massager => sub { return (<<"EOF"); 472int d2i_$1(void); 473int i2d_$1(void); 474int $1_free(void); 475int $1_new(void); 476DECLARE_ASN1_ITEM($1) 477EOF 478 } 479 }, 480 { regexp => qr/DECLARE_ASN1_NDEF_FUNCTION<<<\((.*)\)>>>/, 481 massager => sub { 482 return (<<"EOF"); 483int i2d_$1_NDEF(void); 484EOF 485 } 486 }, 487 { regexp => qr/DECLARE_ASN1_PRINT_FUNCTION<<<\((.*)\)>>>/, 488 massager => sub { 489 return (<<"EOF"); 490int $1_print_ctx(void); 491EOF 492 } 493 }, 494 { regexp => qr/DECLARE_ASN1_PRINT_FUNCTION_name<<<\((.*),\s*(.*)\)>>>/, 495 massager => sub { 496 return (<<"EOF"); 497int $2_print_ctx(void); 498EOF 499 } 500 }, 501 { regexp => qr/DECLARE_ASN1_SET_OF<<<\((.*)\)>>>/, 502 massager => sub { return (); } 503 }, 504 { regexp => qr/DECLARE_ASN1_DUP_FUNCTION<<<\((.*)\)>>>/, 505 massager => sub { 506 return (<<"EOF"); 507int $1_dup(void); 508EOF 509 } 510 }, 511 { regexp => qr/DECLARE_ASN1_DUP_FUNCTION_name<<<\((.*),\s*(.*)\)>>>/, 512 massager => sub { 513 return (<<"EOF"); 514int $2_dup(void); 515EOF 516 } 517 }, 518 # Universal translator of attributed PEM declarators 519 { regexp => qr/ 520 DECLARE_ASN1 521 (_ENCODE_FUNCTIONS_only|_ENCODE_FUNCTIONS|_ENCODE_FUNCTIONS_name 522 |_ALLOC_FUNCTIONS_name|_ALLOC_FUNCTIONS|_FUNCTIONS_name|_FUNCTIONS 523 |_NDEF_FUNCTION|_PRINT_FUNCTION|_PRINT_FUNCTION_name 524 |_DUP_FUNCTION|_DUP_FUNCTION_name) 525 _attr 526 <<<\(\s*OSSL_DEPRECATEDIN_(.*?)\s*,(.*?)\)>>> 527 /x, 528 massager => sub { return (<<"EOF"); 529DECLARE_ASN1$1($3) 530EOF 531 }, 532 }, 533 { regexp => qr/DECLARE_PKCS12_SET_OF<<<\((.*)\)>>>/, 534 massager => sub { return (); } 535 }, 536 537 ##### 538 # PEM stuff 539 { regexp => qr/DECLARE_PEM(?|_rw|_rw_cb|_rw_const)<<<\((.*?),.*\)>>>/, 540 massager => sub { return (<<"EOF"); 541#ifndef OPENSSL_NO_STDIO 542int PEM_read_$1(void); 543int PEM_write_$1(void); 544#endif 545int PEM_read_bio_$1(void); 546int PEM_write_bio_$1(void); 547EOF 548 }, 549 }, 550 { regexp => qr/DECLARE_PEM(?|_rw|_rw_cb|_rw_const)_ex<<<\((.*?),.*\)>>>/, 551 massager => sub { return (<<"EOF"); 552#ifndef OPENSSL_NO_STDIO 553int PEM_read_$1(void); 554int PEM_write_$1(void); 555int PEM_read_$1_ex(void); 556int PEM_write_$1_ex(void); 557#endif 558int PEM_read_bio_$1(void); 559int PEM_write_bio_$1(void); 560int PEM_read_bio_$1_ex(void); 561int PEM_write_bio_$1_ex(void); 562EOF 563 }, 564 }, 565 { regexp => qr/DECLARE_PEM(?|_write|_write_cb|_write_const)<<<\((.*?),.*\)>>>/, 566 massager => sub { return (<<"EOF"); 567#ifndef OPENSSL_NO_STDIO 568int PEM_write_$1(void); 569#endif 570int PEM_write_bio_$1(void); 571EOF 572 }, 573 }, 574 { regexp => qr/DECLARE_PEM(?|_write|_write_cb|_write_const)_ex<<<\((.*?),.*\)>>>/, 575 massager => sub { return (<<"EOF"); 576#ifndef OPENSSL_NO_STDIO 577int PEM_write_$1(void); 578int PEM_write_$1_ex(void); 579#endif 580int PEM_write_bio_$1(void); 581int PEM_write_bio_$1_ex(void); 582EOF 583 }, 584 }, 585 { regexp => qr/DECLARE_PEM(?|_read|_read_cb)<<<\((.*?),.*\)>>>/, 586 massager => sub { return (<<"EOF"); 587#ifndef OPENSSL_NO_STDIO 588int PEM_read_$1(void); 589#endif 590int PEM_read_bio_$1(void); 591EOF 592 }, 593 }, 594 { regexp => qr/DECLARE_PEM(?|_read|_read_cb)_ex<<<\((.*?),.*\)>>>/, 595 massager => sub { return (<<"EOF"); 596#ifndef OPENSSL_NO_STDIO 597int PEM_read_$1(void); 598int PEM_read_$1_ex(void); 599#endif 600int PEM_read_bio_$1(void); 601int PEM_read_bio_$1_ex(void); 602EOF 603 }, 604 }, 605 # Universal translator of attributed PEM declarators 606 { regexp => qr/ 607 DECLARE_PEM 608 ((?:_rw|_rw_cb|_rw_const|_write|_write_cb|_write_const|_read|_read_cb) 609 (?:_ex)?) 610 _attr 611 <<<\(\s*OSSL_DEPRECATEDIN_(.*?)\s*,(.*?)\)>>> 612 /x, 613 massager => sub { return (<<"EOF"); 614DECLARE_PEM$1($3) 615EOF 616 }, 617 }, 618 619 # OpenSSL's declaration of externs with possible export linkage 620 # (really only relevant on Windows) 621 { regexp => qr/OPENSSL_(?:EXPORT|EXTERN)/, 622 massager => sub { return ("extern"); } 623 }, 624 625 # Spurious stuff found in the OpenSSL headers 626 # Usually, these are just macros that expand to, well, something 627 { regexp => qr/__NDK_FPABI__/, 628 massager => sub { return (); } 629 }, 630 ); 631 632my $anoncnt = 0; 633 634my @chandlers = ( 635 ################################################################## 636 # C stuff 637 638 # extern "C" of individual items 639 # Note that the main parse function has a special hack for 'extern "C" {' 640 # which can't be done in handlers 641 # We simply ignore it. 642 { regexp => qr/^extern "C" (.*(?:;|>>>))/, 643 massager => sub { return ($1); }, 644 }, 645 # any other extern is just ignored 646 { regexp => qr/^\s* # Any spaces before 647 extern # The keyword we look for 648 \b # word to non-word boundary 649 .* # Anything after 650 ; 651 /x, 652 massager => sub { return (); }, 653 }, 654 # union, struct and enum definitions 655 # Because this one might appear a little everywhere within type 656 # definitions, we take it out and replace it with just 657 # 'union|struct|enum name' while registering it. 658 # This makes use of the parser trick to surround the outer braces 659 # with <<< and >>> 660 { regexp => qr/(.*) # Anything before ($1) 661 \b # word to non-word boundary 662 (union|struct|enum) # The word used ($2) 663 (?:\s([[:alpha:]_]\w*))? # Struct or enum name ($3) 664 <<<(\{.*?\})>>> # Struct or enum definition ($4) 665 (.*) # Anything after ($5) 666 ; 667 /x, 668 massager => sub { 669 my $before = $1; 670 my $word = $2; 671 my $name = $3 672 || sprintf("__anon%03d", ++$anoncnt); # Anonymous struct 673 my $definition = $4; 674 my $after = $5; 675 my $type = $word eq "struct" ? 'S' : 'E'; 676 if ($before ne "" || $after ne ";") { 677 if ($after =~ m|^\w|) { $after = " ".$after; } 678 return ("$before$word $name$after;", 679 "$word $name", $type, "", "$word$definition", all_conds()); 680 } 681 # If there was no before nor after, make the return much simple 682 return ("", "$word $name", $type, "", "$word$definition", all_conds()); 683 } 684 }, 685 # Named struct and enum forward declarations 686 # We really just ignore them, but we need to parse them or the variable 687 # declaration handler further down will think it's a variable declaration. 688 { regexp => qr/^(union|struct|enum) ([[:alpha:]_]\w*);/, 689 massager => sub { return (); } 690 }, 691 # Function returning function pointer declaration 692 # This sort of declaration may have a body (inline functions, for example) 693 { regexp => qr/(?:(typedef)\s?)? # Possible typedef ($1) 694 ((?:\w|\*|\s)*?) # Return type ($2) 695 \s? # Possible space 696 <<<\(\* 697 ([[:alpha:]_]\w*) # Function name ($3) 698 (\(.*\)) # Parameters ($4) 699 \)>>> 700 <<<(\(.*\))>>> # F.p. parameters ($5) 701 (?:<<<\{.*\}>>>|;) # Body or semicolon 702 /x, 703 massager => sub { 704 return ("", $3, 'T', "", "$2(*$4)$5", all_conds()) 705 if defined $1; 706 return ("", $3, 'F', "$2(*)$5", "$2(*$4)$5", all_conds()); } 707 }, 708 # Function pointer declaration, or typedef thereof 709 # This sort of declaration never has a function body 710 { regexp => qr/(?:(typedef)\s?)? # Possible typedef ($1) 711 ((?:\w|\*|\s)*?) # Return type ($2) 712 <<<\(\*([[:alpha:]_]\w*)\)>>> # T.d. or var name ($3) 713 <<<(\(.*\))>>> # F.p. parameters ($4) 714 ; 715 /x, 716 massager => sub { 717 return ("", $3, 'T', "", "$2(*)$4", all_conds()) 718 if defined $1; 719 return ("", $3, 'V', "$2(*)$4", "$2(*)$4", all_conds()); 720 }, 721 }, 722 # Function declaration, or typedef thereof 723 # This sort of declaration may have a body (inline functions, for example) 724 { regexp => qr/(?:(typedef)\s?)? # Possible typedef ($1) 725 ((?:\w|\*|\s)*?) # Return type ($2) 726 \s? # Possible space 727 ([[:alpha:]_]\w*) # Function name ($3) 728 <<<(\(.*\))>>> # Parameters ($4) 729 (?:<<<\{.*\}>>>|;) # Body or semicolon 730 /x, 731 massager => sub { 732 return ("", $3, 'T', "", "$2$4", all_conds()) 733 if defined $1; 734 return ("", $3, 'F', $2, "$2$4", all_conds()); 735 }, 736 }, 737 # Variable declaration, including arrays, or typedef thereof 738 { regexp => qr/(?:(typedef)\s?)? # Possible typedef ($1) 739 ((?:\w|\*|\s)*?) # Type ($2) 740 \s? # Possible space 741 ([[:alpha:]_]\w*) # Variable name ($3) 742 ((?:<<<\[[^\]]*\]>>>)*) # Possible array declaration ($4) 743 ; 744 /x, 745 massager => sub { 746 return ("", $3, 'T', "", $2.($4||""), all_conds()) 747 if defined $1; 748 return ("", $3, 'V', $2.($4||""), $2.($4||""), all_conds()); 749 }, 750 }, 751); 752 753# End handlers are almost the same as handlers, except they are run through 754# ONCE when the input has been parsed through. These are used to check for 755# remaining stuff, such as an unfinished #ifdef and stuff like that that the 756# main parser can't check on its own. 757my @endhandlers = ( 758 { massager => sub { 759 my %opts = %{$_[0]}; 760 761 die "Unfinished preprocessor conditions levels: ",scalar(@preprocessor_conds),($opts{filename} ? " in file ".$opts{filename}: ""),$opts{PLACE} 762 if @preprocessor_conds; 763 } 764 } 765 ); 766 767# takes a list of strings that can each contain one or several lines of code 768# also takes a hash of options as last argument. 769# 770# returns a list of hashes with information: 771# 772# name name of the thing 773# type type, see the massage handler function 774# returntype return type of functions and variables 775# value value for macros, signature for functions, variables 776# and structs 777# conds preprocessor conditions (array ref) 778 779sub parse { 780 my %opts; 781 if (ref($_[$#_]) eq "HASH") { 782 %opts = %{$_[$#_]}; 783 pop @_; 784 } 785 my %state = ( 786 in_extern_C => 0, # An exception to parenthesis processing. 787 cpp_parens => [], # A list of ending parens and braces found in 788 # preprocessor directives 789 c_parens => [], # A list of ending parens and braces found in 790 # C statements 791 in_string => "", # empty string when outside a string, otherwise 792 # "'" or '"' depending on the starting quote. 793 in_comment => "", # empty string when outside a comment, otherwise 794 # "/*" or "//" depending on the type of comment 795 # found. The latter will never be multiline 796 # NOTE: in_string and in_comment will never be 797 # true (in perl semantics) at the same time. 798 current_line => 0, 799 ); 800 my @result = (); 801 my $normalized_line = ""; # $input_line, but normalized. In essence, this 802 # means that ALL whitespace is removed unless 803 # it absolutely has to be present, and in that 804 # case, there's only one space. 805 # The cases where a space needs to stay present 806 # are: 807 # 1. between words 808 # 2. between words and number 809 # 3. after the first word of a preprocessor 810 # directive. 811 # 4. for the #define directive, between the macro 812 # name/args and its value, so we end up with: 813 # #define FOO val 814 # #define BAR(x) something(x) 815 my $collected_stmt = ""; # Where we're building up a C line until it's a 816 # complete definition/declaration, as determined 817 # by any handler being capable of matching it. 818 819 # We use $_ shamelessly when looking through @lines. 820 # In case we find a \ at the end, we keep filling it up with more lines. 821 $_ = undef; 822 823 foreach my $line (@_) { 824 # split tries to be smart when a string ends with the thing we split on 825 $line .= "\n" unless $line =~ m|\R$|; 826 $line .= "#"; 827 828 # We use ¦undef¦ as a marker for a new line from the file. 829 # Since we convert one line to several and unshift that into @lines, 830 # that's the only safe way we have to track the original lines 831 my @lines = map { ( undef, $_ ) } split m|\R|, $line; 832 833 # Remember that extra # we added above? Now we remove it 834 pop @lines; 835 pop @lines; # Don't forget the undef 836 837 while (@lines) { 838 if (!defined($lines[0])) { 839 shift @lines; 840 $state{current_line}++; 841 if (!defined($_)) { 842 $opts{PLACE} = " at ".$opts{filename}." line ".$state{current_line}."\n"; 843 $opts{PLACE2} = $opts{filename}.":".$state{current_line}; 844 } 845 next; 846 } 847 848 $_ = "" unless defined $_; 849 $_ .= shift @lines; 850 851 if (m|\\$|) { 852 $_ = $`; 853 next; 854 } 855 856 if ($opts{debug}) { 857 print STDERR "DEBUG:----------------------------\n"; 858 print STDERR "DEBUG: \$_ = '$_'\n"; 859 } 860 861 ########################################################## 862 # Now that we have a full line, let's process through it 863 while(1) { 864 unless ($state{in_comment}) { 865 # Begin with checking if the current $normalized_line 866 # contains a preprocessor directive 867 # This is only done if we're not inside a comment and 868 # if it's a preprocessor directive and it's finished. 869 if ($normalized_line =~ m|^#| && $_ eq "") { 870 print STDERR "DEBUG[OPENSSL CPP]: \$normalized_line = '$normalized_line'\n" 871 if $opts{debug}; 872 $opts{debug_type} = "OPENSSL CPP"; 873 my @r = ( _run_handlers($normalized_line, 874 @opensslcpphandlers, 875 \%opts) ); 876 if (shift @r) { 877 # Checking if there are lines to inject. 878 if (@r) { 879 @r = split $/, (pop @r).$_; 880 print STDERR "DEBUG[OPENSSL CPP]: injecting '", join("', '", @r),"'\n" 881 if $opts{debug} && @r; 882 @lines = ( @r, @lines ); 883 884 $_ = ""; 885 } 886 } else { 887 print STDERR "DEBUG[CPP]: \$normalized_line = '$normalized_line'\n" 888 if $opts{debug}; 889 $opts{debug_type} = "CPP"; 890 my @r = ( _run_handlers($normalized_line, 891 @cpphandlers, 892 \%opts) ); 893 if (shift @r) { 894 if (ref($r[0]) eq "HASH") { 895 push @result, shift @r; 896 } 897 898 # Now, check if there are lines to inject. 899 # Really, this should never happen, it IS a 900 # preprocessor directive after all... 901 if (@r) { 902 @r = split $/, pop @r; 903 print STDERR "DEBUG[CPP]: injecting '", join("', '", @r),"'\n" 904 if $opts{debug} && @r; 905 @lines = ( @r, @lines ); 906 $_ = ""; 907 } 908 } 909 } 910 911 # Note: we simply ignore all directives that no 912 # handler matches 913 $normalized_line = ""; 914 } 915 916 # If the two strings end and start with a character that 917 # shouldn't get concatenated, add a space 918 my $space = 919 ($collected_stmt =~ m/(?:"|')$/ 920 || ($collected_stmt =~ m/(?:\w|\d)$/ 921 && $normalized_line =~ m/^(?:\w|\d)/)) ? " " : ""; 922 923 # Now, unless we're building up a preprocessor directive or 924 # are in the middle of a string, or the parens et al aren't 925 # balanced up yet, let's try and see if there's a OpenSSL 926 # or C handler that can make sense of what we have so far. 927 if ( $normalized_line !~ m|^#| 928 && ($collected_stmt ne "" || $normalized_line ne "") 929 && ! @{$state{c_parens}} 930 && ! $state{in_string} ) { 931 if ($opts{debug}) { 932 print STDERR "DEBUG[OPENSSL C]: \$collected_stmt = '$collected_stmt'\n"; 933 print STDERR "DEBUG[OPENSSL C]: \$normalized_line = '$normalized_line'\n"; 934 } 935 $opts{debug_type} = "OPENSSL C"; 936 my @r = ( _run_handlers($collected_stmt 937 .$space 938 .$normalized_line, 939 @opensslchandlers, 940 \%opts) ); 941 if (shift @r) { 942 # Checking if there are lines to inject. 943 if (@r) { 944 @r = split $/, (pop @r).$_; 945 print STDERR "DEBUG[OPENSSL]: injecting '", join("', '", @r),"'\n" 946 if $opts{debug} && @r; 947 @lines = ( @r, @lines ); 948 949 $_ = ""; 950 } 951 $normalized_line = ""; 952 $collected_stmt = ""; 953 } else { 954 if ($opts{debug}) { 955 print STDERR "DEBUG[C]: \$collected_stmt = '$collected_stmt'\n"; 956 print STDERR "DEBUG[C]: \$normalized_line = '$normalized_line'\n"; 957 } 958 $opts{debug_type} = "C"; 959 my @r = ( _run_handlers($collected_stmt 960 .$space 961 .$normalized_line, 962 @chandlers, 963 \%opts) ); 964 if (shift @r) { 965 if (ref($r[0]) eq "HASH") { 966 push @result, shift @r; 967 } 968 969 # Checking if there are lines to inject. 970 if (@r) { 971 @r = split $/, (pop @r).$_; 972 print STDERR "DEBUG[C]: injecting '", join("', '", @r),"'\n" 973 if $opts{debug} && @r; 974 @lines = ( @r, @lines ); 975 976 $_ = ""; 977 } 978 $normalized_line = ""; 979 $collected_stmt = ""; 980 } 981 } 982 } 983 if ($_ eq "") { 984 $collected_stmt .= $space.$normalized_line; 985 $normalized_line = ""; 986 } 987 } 988 989 if ($_ eq "") { 990 $_ = undef; 991 last; 992 } 993 994 # Take care of inside string first. 995 if ($state{in_string}) { 996 if (m/ (?:^|(?<!\\)) # Make sure it's not escaped 997 $state{in_string} # Look for matching quote 998 /x) { 999 $normalized_line .= $`.$&; 1000 $state{in_string} = ""; 1001 $_ = $'; 1002 next; 1003 } else { 1004 die "Unfinished string without continuation found$opts{PLACE}\n"; 1005 } 1006 } 1007 # ... or inside comments, whichever happens to apply 1008 elsif ($state{in_comment}) { 1009 1010 # This should never happen 1011 die "Something went seriously wrong, multiline //???$opts{PLACE}\n" 1012 if ($state{in_comment} eq "//"); 1013 1014 # A note: comments are simply discarded. 1015 1016 if (m/ (?:^|(?<!\\)) # Make sure it's not escaped 1017 \*\/ # Look for C comment end 1018 /x) { 1019 $state{in_comment} = ""; 1020 $_ = $'; 1021 print STDERR "DEBUG: Found end of comment, followed by '$_'\n" 1022 if $opts{debug}; 1023 next; 1024 } else { 1025 $_ = ""; 1026 next; 1027 } 1028 } 1029 1030 # At this point, it's safe to remove leading whites, but 1031 # we need to be careful with some preprocessor lines 1032 if (m|^\s+|) { 1033 my $rest = $'; 1034 my $space = ""; 1035 $space = " " 1036 if ($normalized_line =~ m/^ 1037 \#define\s\w(?:\w|\d)*(?:<<<\([^\)]*\)>>>)? 1038 | \#[a-z]+ 1039 $/x); 1040 print STDERR "DEBUG: Processing leading spaces: \$normalized_line = '$normalized_line', \$space = '$space', \$rest = '$rest'\n" 1041 if $opts{debug}; 1042 $_ = $space.$rest; 1043 } 1044 1045 my $parens = 1046 $normalized_line =~ m|^#| ? 'cpp_parens' : 'c_parens'; 1047 (my $paren_singular = $parens) =~ s|s$||; 1048 1049 # Now check for specific tokens, and if they are parens, 1050 # check them against $state{$parens}. Note that we surround 1051 # the outermost parens with extra "<<<" and ">>>". Those 1052 # are for the benefit of handlers who to need to detect 1053 # them, and they will be removed from the final output. 1054 if (m|^[\{\[\(]|) { 1055 my $body = $&; 1056 $_ = $'; 1057 if (!@{$state{$parens}}) { 1058 if ("$normalized_line$body" =~ m|^extern "C"\{$|) { 1059 $state{in_extern_C} = 1; 1060 print STDERR "DEBUG: found start of 'extern \"C\"' ($normalized_line$body)\n" 1061 if $opts{debug}; 1062 $normalized_line = ""; 1063 } else { 1064 $normalized_line .= "<<<".$body; 1065 } 1066 } else { 1067 $normalized_line .= $body; 1068 } 1069 1070 if ($normalized_line ne "") { 1071 print STDERR "DEBUG: found $paren_singular start '$body'\n" 1072 if $opts{debug}; 1073 $body =~ tr|\{\[\(|\}\]\)|; 1074 print STDERR "DEBUG: pushing $paren_singular end '$body'\n" 1075 if $opts{debug}; 1076 push @{$state{$parens}}, $body; 1077 } 1078 } elsif (m|^[\}\]\)]|) { 1079 $_ = $'; 1080 1081 if (!@{$state{$parens}} 1082 && $& eq '}' && $state{in_extern_C}) { 1083 print STDERR "DEBUG: found end of 'extern \"C\"'\n" 1084 if $opts{debug}; 1085 $state{in_extern_C} = 0; 1086 } else { 1087 print STDERR "DEBUG: Trying to match '$&' against '" 1088 ,join("', '", @{$state{$parens}}) 1089 ,"'\n" 1090 if $opts{debug}; 1091 die "Unmatched parentheses$opts{PLACE}\n" 1092 unless (@{$state{$parens}} 1093 && pop @{$state{$parens}} eq $&); 1094 if (!@{$state{$parens}}) { 1095 $normalized_line .= $&.">>>"; 1096 } else { 1097 $normalized_line .= $&; 1098 } 1099 } 1100 } elsif (m|^["']|) { # string start 1101 my $body = $&; 1102 $_ = $'; 1103 1104 # We want to separate strings from \w and \d with one space. 1105 $normalized_line .= " " if $normalized_line =~ m/(\w|\d)$/; 1106 $normalized_line .= $body; 1107 $state{in_string} = $body; 1108 } elsif (m|^\/\*|) { # C style comment 1109 print STDERR "DEBUG: found start of C style comment\n" 1110 if $opts{debug}; 1111 $state{in_comment} = $&; 1112 $_ = $'; 1113 } elsif (m|^\/\/|) { # C++ style comment 1114 print STDERR "DEBUG: found C++ style comment\n" 1115 if $opts{debug}; 1116 $_ = ""; # (just discard it entirely) 1117 } elsif (m/^ (?| (?: 0[xX][[:xdigit:]]+ | 0[bB][01]+ | [0-9]+ ) 1118 (?i: U | L | UL | LL | ULL )? 1119 | [0-9]+\.[0-9]+(?:[eE][\-\+]\d+)? (?i: F | L)? 1120 ) /x) { 1121 print STDERR "DEBUG: Processing numbers: \$normalized_line = '$normalized_line', \$& = '$&', \$' = '$''\n" 1122 if $opts{debug}; 1123 $normalized_line .= $&; 1124 $_ = $'; 1125 } elsif (m/^[[:alpha:]_]\w*/) { 1126 my $body = $&; 1127 my $rest = $'; 1128 my $space = ""; 1129 1130 # Now, only add a space if it's needed to separate 1131 # two \w characters, and we also surround strings with 1132 # a space. In this case, that's if $normalized_line ends 1133 # with a \w, \d, " or '. 1134 $space = " " 1135 if ($normalized_line =~ m/("|')$/ 1136 || ($normalized_line =~ m/(\w|\d)$/ 1137 && $body =~ m/^(\w|\d)/)); 1138 1139 print STDERR "DEBUG: Processing words: \$normalized_line = '$normalized_line', \$space = '$space', \$body = '$body', \$rest = '$rest'\n" 1140 if $opts{debug}; 1141 $normalized_line .= $space.$body; 1142 $_ = $rest; 1143 } elsif (m|^(?:\\)?.|) { # Catch-all 1144 $normalized_line .= $&; 1145 $_ = $'; 1146 } 1147 } 1148 } 1149 } 1150 foreach my $handler (@endhandlers) { 1151 if ($handler->{massager}) { 1152 $handler->{massager}->(\%opts); 1153 } 1154 } 1155 return @result; 1156} 1157 1158# arg1: line to check 1159# arg2...: handlers to check 1160# return undef when no handler matched 1161sub _run_handlers { 1162 my %opts; 1163 if (ref($_[$#_]) eq "HASH") { 1164 %opts = %{$_[$#_]}; 1165 pop @_; 1166 } 1167 my $line = shift; 1168 my @handlers = @_; 1169 1170 foreach my $handler (@handlers) { 1171 if ($handler->{regexp} 1172 && $line =~ m|^$handler->{regexp}$|) { 1173 if ($handler->{massager}) { 1174 if ($opts{debug}) { 1175 print STDERR "DEBUG[",$opts{debug_type},"]: Trying to handle '$line'\n"; 1176 print STDERR "DEBUG[",$opts{debug_type},"]: (matches /\^",$handler->{regexp},"\$/)\n"; 1177 } 1178 my $saved_line = $line; 1179 my @massaged = 1180 map { s/(<<<|>>>)//g; $_ } 1181 $handler->{massager}->($saved_line, \%opts); 1182 print STDERR "DEBUG[",$opts{debug_type},"]: Got back '" 1183 , join("', '", @massaged), "'\n" 1184 if $opts{debug}; 1185 1186 # Because we may get back new lines to be 1187 # injected before whatever else that follows, 1188 # and the injected stuff might include 1189 # preprocessor lines, we need to inject them 1190 # in @lines and set $_ to the empty string to 1191 # break out from the inner loops 1192 my $injected_lines = shift @massaged || ""; 1193 1194 if (@massaged) { 1195 return (1, 1196 { 1197 name => shift @massaged, 1198 type => shift @massaged, 1199 returntype => shift @massaged, 1200 value => shift @massaged, 1201 conds => [ @massaged ] 1202 }, 1203 $injected_lines 1204 ); 1205 } else { 1206 print STDERR "DEBUG[",$opts{debug_type},"]: (ignore, possible side effects)\n" 1207 if $opts{debug} && $injected_lines eq ""; 1208 return (1, $injected_lines); 1209 } 1210 } 1211 return (1); 1212 } 1213 } 1214 return (0); 1215} 1216
