| 1 | #!/usr/bin/perl -w |
| 2 | |
| 3 | # |
| 4 | # Generate the reentr.c and reentr.h, |
| 5 | # and optionally also the relevant metaconfig units (-U option). |
| 6 | # |
| 7 | |
| 8 | BEGIN { |
| 9 | # Get function prototypes |
| 10 | require 'regen_lib.pl'; |
| 11 | } |
| 12 | |
| 13 | use strict; |
| 14 | use Getopt::Std; |
| 15 | my %opts; |
| 16 | getopts('Uv', \%opts); |
| 17 | |
| 18 | my %map = ( |
| 19 | V => "void", |
| 20 | A => "char*", # as an input argument |
| 21 | B => "char*", # as an output argument |
| 22 | C => "const char*", # as a read-only input argument |
| 23 | I => "int", |
| 24 | L => "long", |
| 25 | W => "size_t", |
| 26 | H => "FILE**", |
| 27 | E => "int*", |
| 28 | ); |
| 29 | |
| 30 | # (See the definitions after __DATA__.) |
| 31 | # In func|inc|type|... a "S" means "type*", and a "R" means "type**". |
| 32 | # (The "types" are often structs, such as "struct passwd".) |
| 33 | # |
| 34 | # After the prototypes one can have |X=...|Y=... to define more types. |
| 35 | # A commonly used extra type is to define D to be equal to "type_data", |
| 36 | # for example "struct_hostent_data to" go with "struct hostent". |
| 37 | # |
| 38 | # Example #1: I_XSBWR means int func_r(X, type, char*, size_t, type**) |
| 39 | # Example #2: S_SBIE means type func_r(type, char*, int, int*) |
| 40 | # Example #3: S_CBI means type func_r(const char*, char*, int) |
| 41 | |
| 42 | |
| 43 | # safer_unlink 'reentr.h'; |
| 44 | my $h = safer_open("reentr.h-new"); |
| 45 | select $h; |
| 46 | print <<EOF; |
| 47 | /* -*- buffer-read-only: t -*- |
| 48 | * |
| 49 | * reentr.h |
| 50 | * |
| 51 | * Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others |
| 52 | * |
| 53 | * You may distribute under the terms of either the GNU General Public |
| 54 | * License or the Artistic License, as specified in the README file. |
| 55 | * |
| 56 | * !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
| 57 | * This file is built by reentr.pl from data in reentr.pl. |
| 58 | */ |
| 59 | |
| 60 | #ifndef REENTR_H |
| 61 | #define REENTR_H |
| 62 | |
| 63 | /* If compiling for a threaded perl, we will macro-wrap the system/library |
| 64 | * interfaces (e.g. getpwent()) which have threaded versions |
| 65 | * (e.g. getpwent_r()), which will handle things correctly for |
| 66 | * the Perl interpreter, but otherwise (for XS) the wrapping does |
| 67 | * not take place. See L<perlxs/Thread-aware system interfaces>. |
| 68 | */ |
| 69 | |
| 70 | #ifndef PERL_REENTR_API |
| 71 | # if defined(PERL_CORE) || defined(PERL_EXT) |
| 72 | # define PERL_REENTR_API 1 |
| 73 | # else |
| 74 | # define PERL_REENTR_API 0 |
| 75 | # endif |
| 76 | #endif |
| 77 | |
| 78 | #ifdef USE_REENTRANT_API |
| 79 | |
| 80 | /* Deprecations: some platforms have the said reentrant interfaces |
| 81 | * but they are declared obsolete and are not to be used. Often this |
| 82 | * means that the platform has threadsafed the interfaces (hopefully). |
| 83 | * All this is OS version dependent, so we are of course fooling ourselves. |
| 84 | * If you know of more deprecations on some platforms, please add your own |
| 85 | * (by editing reentr.pl, mind!) */ |
| 86 | |
| 87 | #ifdef __hpux |
| 88 | # undef HAS_CRYPT_R |
| 89 | # undef HAS_DRAND48_R |
| 90 | # undef HAS_ENDGRENT_R |
| 91 | # undef HAS_ENDPWENT_R |
| 92 | # undef HAS_GETGRENT_R |
| 93 | # undef HAS_GETPWENT_R |
| 94 | # undef HAS_SETLOCALE_R |
| 95 | # undef HAS_SRAND48_R |
| 96 | # undef HAS_STRERROR_R |
| 97 | # define NETDB_R_OBSOLETE |
| 98 | #endif |
| 99 | |
| 100 | #if defined(__osf__) && defined(__alpha) /* Tru64 aka Digital UNIX */ |
| 101 | # undef HAS_CRYPT_R |
| 102 | # undef HAS_STRERROR_R |
| 103 | # define NETDB_R_OBSOLETE |
| 104 | #endif |
| 105 | |
| 106 | /* |
| 107 | * As of OpenBSD 3.7, reentrant functions are now working, they just are |
| 108 | * incompatible with everyone else. To make OpenBSD happy, we have to |
| 109 | * memzero out certain structures before calling the functions. |
| 110 | */ |
| 111 | #if defined(__OpenBSD__) |
| 112 | # define REENTR_MEMZERO(a,b) memzero(a,b) |
| 113 | #else |
| 114 | # define REENTR_MEMZERO(a,b) 0 |
| 115 | #endif |
| 116 | |
| 117 | #ifdef NETDB_R_OBSOLETE |
| 118 | # undef HAS_ENDHOSTENT_R |
| 119 | # undef HAS_ENDNETENT_R |
| 120 | # undef HAS_ENDPROTOENT_R |
| 121 | # undef HAS_ENDSERVENT_R |
| 122 | # undef HAS_GETHOSTBYADDR_R |
| 123 | # undef HAS_GETHOSTBYNAME_R |
| 124 | # undef HAS_GETHOSTENT_R |
| 125 | # undef HAS_GETNETBYADDR_R |
| 126 | # undef HAS_GETNETBYNAME_R |
| 127 | # undef HAS_GETNETENT_R |
| 128 | # undef HAS_GETPROTOBYNAME_R |
| 129 | # undef HAS_GETPROTOBYNUMBER_R |
| 130 | # undef HAS_GETPROTOENT_R |
| 131 | # undef HAS_GETSERVBYNAME_R |
| 132 | # undef HAS_GETSERVBYPORT_R |
| 133 | # undef HAS_GETSERVENT_R |
| 134 | # undef HAS_SETHOSTENT_R |
| 135 | # undef HAS_SETNETENT_R |
| 136 | # undef HAS_SETPROTOENT_R |
| 137 | # undef HAS_SETSERVENT_R |
| 138 | #endif |
| 139 | |
| 140 | #ifdef I_PWD |
| 141 | # include <pwd.h> |
| 142 | #endif |
| 143 | #ifdef I_GRP |
| 144 | # include <grp.h> |
| 145 | #endif |
| 146 | #ifdef I_NETDB |
| 147 | # include <netdb.h> |
| 148 | #endif |
| 149 | #ifdef I_STDLIB |
| 150 | # include <stdlib.h> /* drand48_data */ |
| 151 | #endif |
| 152 | #ifdef I_CRYPT |
| 153 | # ifdef I_CRYPT |
| 154 | # include <crypt.h> |
| 155 | # endif |
| 156 | #endif |
| 157 | #ifdef HAS_GETSPNAM_R |
| 158 | # ifdef I_SHADOW |
| 159 | # include <shadow.h> |
| 160 | # endif |
| 161 | #endif |
| 162 | |
| 163 | EOF |
| 164 | |
| 165 | my %seenh; # the different prototypes signatures for this function |
| 166 | my %seena; # the different prototypes signatures for this function in order |
| 167 | my @seenf; # all the seen functions |
| 168 | my %seenp; # the different prototype signatures for all functions |
| 169 | my %seent; # the return type of this function |
| 170 | my %seens; # the type of this function's "S" |
| 171 | my %seend; # the type of this function's "D" |
| 172 | my %seenm; # all the types |
| 173 | my %seenu; # the length of the argument list of this function |
| 174 | |
| 175 | while (<DATA>) { # Read in the protypes. |
| 176 | next if /^\s+$/; |
| 177 | chomp; |
| 178 | my ($func, $hdr, $type, @p) = split(/\s*\|\s*/, $_, -1); |
| 179 | my $u; |
| 180 | # Split off the real function name and the argument list. |
| 181 | ($func, $u) = split(' ', $func); |
| 182 | $seenu{$func} = defined $u ? length $u : 0; |
| 183 | my $FUNC = uc $func; # for output. |
| 184 | push @seenf, $func; |
| 185 | my %m = %map; |
| 186 | if ($type) { |
| 187 | $m{S} = "$type*"; |
| 188 | $m{R} = "$type**"; |
| 189 | } |
| 190 | |
| 191 | # Set any special mapping variables (like X=x_t) |
| 192 | if (@p) { |
| 193 | while ($p[-1] =~ /=/) { |
| 194 | my ($k, $v) = ($p[-1] =~ /^([A-Za-z])\s*=\s*(.*)/); |
| 195 | $m{$k} = $v; |
| 196 | pop @p; |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | # If given the -U option open up the metaconfig unit for this function. |
| 201 | if ($opts{U} && open(U, ">d_${func}_r.U")) { |
| 202 | binmode U; |
| 203 | select U; |
| 204 | } |
| 205 | |
| 206 | if ($opts{U}) { |
| 207 | # The metaconfig units needs prerequisite dependencies. |
| 208 | my $prereqs = ''; |
| 209 | my $prereqh = ''; |
| 210 | my $prereqsh = ''; |
| 211 | if ($hdr ne 'stdio') { # There's no i_stdio. |
| 212 | $prereqs = "i_$hdr"; |
| 213 | $prereqh = "$hdr.h"; |
| 214 | $prereqsh = "\$$prereqs $prereqh"; |
| 215 | } |
| 216 | my @prereq = qw(Inlibc Protochk Hasproto i_systypes usethreads); |
| 217 | push @prereq, $prereqs; |
| 218 | my $hdrs = "\$i_systypes sys/types.h define stdio.h $prereqsh"; |
| 219 | if ($hdr eq 'time') { |
| 220 | $hdrs .= " \$i_systime sys/time.h"; |
| 221 | push @prereq, 'i_systime'; |
| 222 | } |
| 223 | # Output the metaconfig unit header. |
| 224 | print <<EOF; |
| 225 | ?RCS: \$Id: d_${func}_r.U,v $ |
| 226 | ?RCS: |
| 227 | ?RCS: Copyright (c) 2002,2003 Jarkko Hietaniemi |
| 228 | ?RCS: |
| 229 | ?RCS: You may distribute under the terms of either the GNU General Public |
| 230 | ?RCS: License or the Artistic License, as specified in the README file. |
| 231 | ?RCS: |
| 232 | ?RCS: Generated by the reentr.pl from the Perl 5.8 distribution. |
| 233 | ?RCS: |
| 234 | ?MAKE:d_${func}_r ${func}_r_proto: @prereq |
| 235 | ?MAKE: -pick add \$@ %< |
| 236 | ?S:d_${func}_r: |
| 237 | ?S: This variable conditionally defines the HAS_${FUNC}_R symbol, |
| 238 | ?S: which indicates to the C program that the ${func}_r() |
| 239 | ?S: routine is available. |
| 240 | ?S:. |
| 241 | ?S:${func}_r_proto: |
| 242 | ?S: This variable encodes the prototype of ${func}_r. |
| 243 | ?S: It is zero if d_${func}_r is undef, and one of the |
| 244 | ?S: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r |
| 245 | ?S: is defined. |
| 246 | ?S:. |
| 247 | ?C:HAS_${FUNC}_R: |
| 248 | ?C: This symbol, if defined, indicates that the ${func}_r routine |
| 249 | ?C: is available to ${func} re-entrantly. |
| 250 | ?C:. |
| 251 | ?C:${FUNC}_R_PROTO: |
| 252 | ?C: This symbol encodes the prototype of ${func}_r. |
| 253 | ?C: It is zero if d_${func}_r is undef, and one of the |
| 254 | ?C: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r |
| 255 | ?C: is defined. |
| 256 | ?C:. |
| 257 | ?H:#\$d_${func}_r HAS_${FUNC}_R /**/ |
| 258 | ?H:#define ${FUNC}_R_PROTO \$${func}_r_proto /**/ |
| 259 | ?H:. |
| 260 | ?T:try hdrs d_${func}_r_proto |
| 261 | ?LINT:set d_${func}_r |
| 262 | ?LINT:set ${func}_r_proto |
| 263 | : see if ${func}_r exists |
| 264 | set ${func}_r d_${func}_r |
| 265 | eval \$inlibc |
| 266 | case "\$d_${func}_r" in |
| 267 | "\$define") |
| 268 | EOF |
| 269 | print <<EOF; |
| 270 | hdrs="$hdrs" |
| 271 | case "\$d_${func}_r_proto:\$usethreads" in |
| 272 | ":define") d_${func}_r_proto=define |
| 273 | set d_${func}_r_proto ${func}_r \$hdrs |
| 274 | eval \$hasproto ;; |
| 275 | *) ;; |
| 276 | esac |
| 277 | case "\$d_${func}_r_proto" in |
| 278 | define) |
| 279 | EOF |
| 280 | } |
| 281 | for my $p (@p) { |
| 282 | my ($r, $a) = ($p =~ /^(.)_(.+)/); |
| 283 | my $v = join(", ", map { $m{$_} } split '', $a); |
| 284 | if ($opts{U}) { |
| 285 | print <<EOF ; |
| 286 | case "\$${func}_r_proto" in |
| 287 | ''|0) try='$m{$r} ${func}_r($v);' |
| 288 | ./protochk "extern \$try" \$hdrs && ${func}_r_proto=$p ;; |
| 289 | esac |
| 290 | EOF |
| 291 | } |
| 292 | $seenh{$func}->{$p}++; |
| 293 | push @{$seena{$func}}, $p; |
| 294 | $seenp{$p}++; |
| 295 | $seent{$func} = $type; |
| 296 | $seens{$func} = $m{S}; |
| 297 | $seend{$func} = $m{D}; |
| 298 | $seenm{$func} = \%m; |
| 299 | } |
| 300 | if ($opts{U}) { |
| 301 | print <<EOF; |
| 302 | case "\$${func}_r_proto" in |
| 303 | ''|0) d_${func}_r=undef |
| 304 | ${func}_r_proto=0 |
| 305 | echo "Disabling ${func}_r, cannot determine prototype." >&4 ;; |
| 306 | * ) case "\$${func}_r_proto" in |
| 307 | REENTRANT_PROTO*) ;; |
| 308 | *) ${func}_r_proto="REENTRANT_PROTO_\$${func}_r_proto" ;; |
| 309 | esac |
| 310 | echo "Prototype: \$try" ;; |
| 311 | esac |
| 312 | ;; |
| 313 | *) case "\$usethreads" in |
| 314 | define) echo "${func}_r has no prototype, not using it." >&4 ;; |
| 315 | esac |
| 316 | d_${func}_r=undef |
| 317 | ${func}_r_proto=0 |
| 318 | ;; |
| 319 | esac |
| 320 | ;; |
| 321 | *) ${func}_r_proto=0 |
| 322 | ;; |
| 323 | esac |
| 324 | |
| 325 | EOF |
| 326 | close(U); |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | close DATA; |
| 331 | |
| 332 | # Prepare to continue writing the reentr.h. |
| 333 | |
| 334 | select $h; |
| 335 | |
| 336 | { |
| 337 | # Write out all the known prototype signatures. |
| 338 | my $i = 1; |
| 339 | for my $p (sort keys %seenp) { |
| 340 | print "#define REENTRANT_PROTO_${p} ${i}\n"; |
| 341 | $i++; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | my @struct; # REENTR struct members |
| 346 | my @size; # struct member buffer size initialization code |
| 347 | my @init; # struct member buffer initialization (malloc) code |
| 348 | my @free; # struct member buffer release (free) code |
| 349 | my @wrap; # the wrapper (foo(a) -> foo_r(a,...)) cpp code |
| 350 | my @define; # defines for optional features |
| 351 | |
| 352 | sub ifprotomatch { |
| 353 | my $FUNC = shift; |
| 354 | join " || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @_; |
| 355 | } |
| 356 | |
| 357 | sub pushssif { |
| 358 | push @struct, @_; |
| 359 | push @size, @_; |
| 360 | push @init, @_; |
| 361 | push @free, @_; |
| 362 | } |
| 363 | |
| 364 | sub pushinitfree { |
| 365 | my $func = shift; |
| 366 | push @init, <<EOF; |
| 367 | Newx(PL_reentrant_buffer->_${func}_buffer, PL_reentrant_buffer->_${func}_size, char); |
| 368 | EOF |
| 369 | push @free, <<EOF; |
| 370 | Safefree(PL_reentrant_buffer->_${func}_buffer); |
| 371 | EOF |
| 372 | } |
| 373 | |
| 374 | sub define { |
| 375 | my ($n, $p, @F) = @_; |
| 376 | my @H; |
| 377 | my $H = uc $F[0]; |
| 378 | push @define, <<EOF; |
| 379 | /* The @F using \L$n? */ |
| 380 | |
| 381 | EOF |
| 382 | my $GENFUNC; |
| 383 | for my $func (@F) { |
| 384 | my $FUNC = uc $func; |
| 385 | my $HAS = "${FUNC}_R_HAS_$n"; |
| 386 | push @H, $HAS; |
| 387 | my @h = grep { /$p/ } @{$seena{$func}}; |
| 388 | unless (defined $GENFUNC) { |
| 389 | $GENFUNC = $FUNC; |
| 390 | $GENFUNC =~ s/^GET//; |
| 391 | } |
| 392 | if (@h) { |
| 393 | push @define, "#if defined(HAS_${FUNC}_R) && (" . join(" || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n"; |
| 394 | |
| 395 | push @define, <<EOF; |
| 396 | # define $HAS |
| 397 | #else |
| 398 | # undef $HAS |
| 399 | #endif |
| 400 | EOF |
| 401 | } |
| 402 | } |
| 403 | return if @F == 1; |
| 404 | push @define, <<EOF; |
| 405 | |
| 406 | /* Any of the @F using \L$n? */ |
| 407 | |
| 408 | EOF |
| 409 | push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n"; |
| 410 | push @define, <<EOF; |
| 411 | # define USE_${GENFUNC}_$n |
| 412 | #else |
| 413 | # undef USE_${GENFUNC}_$n |
| 414 | #endif |
| 415 | |
| 416 | EOF |
| 417 | } |
| 418 | |
| 419 | define('BUFFER', 'B', |
| 420 | qw(getgrent getgrgid getgrnam)); |
| 421 | |
| 422 | define('PTR', 'R', |
| 423 | qw(getgrent getgrgid getgrnam)); |
| 424 | define('PTR', 'R', |
| 425 | qw(getpwent getpwnam getpwuid)); |
| 426 | define('PTR', 'R', |
| 427 | qw(getspent getspnam)); |
| 428 | |
| 429 | define('FPTR', 'H', |
| 430 | qw(getgrent getgrgid getgrnam setgrent endgrent)); |
| 431 | define('FPTR', 'H', |
| 432 | qw(getpwent getpwnam getpwuid setpwent endpwent)); |
| 433 | |
| 434 | define('BUFFER', 'B', |
| 435 | qw(getpwent getpwgid getpwnam)); |
| 436 | |
| 437 | define('PTR', 'R', |
| 438 | qw(gethostent gethostbyaddr gethostbyname)); |
| 439 | define('PTR', 'R', |
| 440 | qw(getnetent getnetbyaddr getnetbyname)); |
| 441 | define('PTR', 'R', |
| 442 | qw(getprotoent getprotobyname getprotobynumber)); |
| 443 | define('PTR', 'R', |
| 444 | qw(getservent getservbyname getservbyport)); |
| 445 | |
| 446 | define('BUFFER', 'B', |
| 447 | qw(gethostent gethostbyaddr gethostbyname)); |
| 448 | define('BUFFER', 'B', |
| 449 | qw(getnetent getnetbyaddr getnetbyname)); |
| 450 | define('BUFFER', 'B', |
| 451 | qw(getprotoent getprotobyname getprotobynumber)); |
| 452 | define('BUFFER', 'B', |
| 453 | qw(getservent getservbyname getservbyport)); |
| 454 | |
| 455 | define('ERRNO', 'E', |
| 456 | qw(gethostent gethostbyaddr gethostbyname)); |
| 457 | define('ERRNO', 'E', |
| 458 | qw(getnetent getnetbyaddr getnetbyname)); |
| 459 | |
| 460 | # The following loop accumulates the "ssif" (struct, size, init, free) |
| 461 | # sections that declare the struct members (in reentr.h), and the buffer |
| 462 | # size initialization, buffer initialization (malloc), and buffer |
| 463 | # release (free) code (in reentr.c). |
| 464 | # |
| 465 | # The loop also contains a lot of intrinsic logic about groups of |
| 466 | # functions (since functions of certain kind operate the same way). |
| 467 | |
| 468 | for my $func (@seenf) { |
| 469 | my $FUNC = uc $func; |
| 470 | my $ifdef = "#ifdef HAS_${FUNC}_R\n"; |
| 471 | my $endif = "#endif /* HAS_${FUNC}_R */\n"; |
| 472 | if (exists $seena{$func}) { |
| 473 | my @p = @{$seena{$func}}; |
| 474 | if ($func =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) { |
| 475 | pushssif $ifdef; |
| 476 | push @struct, <<EOF; |
| 477 | char* _${func}_buffer; |
| 478 | size_t _${func}_size; |
| 479 | EOF |
| 480 | push @size, <<EOF; |
| 481 | PL_reentrant_buffer->_${func}_size = REENTRANTSMALLSIZE; |
| 482 | EOF |
| 483 | pushinitfree $func; |
| 484 | pushssif $endif; |
| 485 | } |
| 486 | elsif ($func =~ /^(crypt)$/) { |
| 487 | pushssif $ifdef; |
| 488 | push @struct, <<EOF; |
| 489 | #if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD |
| 490 | $seend{$func} _${func}_data; |
| 491 | #else |
| 492 | $seent{$func} *_${func}_struct_buffer; |
| 493 | #endif |
| 494 | EOF |
| 495 | push @init, <<EOF; |
| 496 | #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD |
| 497 | PL_reentrant_buffer->_${func}_struct_buffer = 0; |
| 498 | #endif |
| 499 | EOF |
| 500 | push @free, <<EOF; |
| 501 | #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD |
| 502 | Safefree(PL_reentrant_buffer->_${func}_struct_buffer); |
| 503 | #endif |
| 504 | EOF |
| 505 | pushssif $endif; |
| 506 | } |
| 507 | elsif ($func =~ /^(drand48|gmtime|localtime|random|srandom)$/) { |
| 508 | pushssif $ifdef; |
| 509 | push @struct, <<EOF; |
| 510 | $seent{$func} _${func}_struct; |
| 511 | EOF |
| 512 | if ($1 eq 'drand48') { |
| 513 | push @struct, <<EOF; |
| 514 | double _${func}_double; |
| 515 | EOF |
| 516 | } elsif ($1 eq 'random') { |
| 517 | push @struct, <<EOF; |
| 518 | # if RANDOM_R_PROTO == REENTRANT_PROTO_I_iS |
| 519 | int _${func}_retval; |
| 520 | # endif |
| 521 | # if RANDOM_R_PROTO == REENTRANT_PROTO_I_lS |
| 522 | long _${func}_retval; |
| 523 | # endif |
| 524 | # if RANDOM_R_PROTO == REENTRANT_PROTO_I_St |
| 525 | int32_t _${func}_retval; |
| 526 | # endif |
| 527 | EOF |
| 528 | } |
| 529 | pushssif $endif; |
| 530 | } |
| 531 | elsif ($func =~ /^(getgrnam|getpwnam|getspnam)$/) { |
| 532 | pushssif $ifdef; |
| 533 | # 'genfunc' can be read either as 'generic' or 'genre', |
| 534 | # it represents a group of functions. |
| 535 | my $genfunc = $func; |
| 536 | $genfunc =~ s/nam/ent/g; |
| 537 | $genfunc =~ s/^get//; |
| 538 | my $GENFUNC = uc $genfunc; |
| 539 | push @struct, <<EOF; |
| 540 | $seent{$func} _${genfunc}_struct; |
| 541 | char* _${genfunc}_buffer; |
| 542 | size_t _${genfunc}_size; |
| 543 | EOF |
| 544 | push @struct, <<EOF; |
| 545 | # ifdef USE_${GENFUNC}_PTR |
| 546 | $seent{$func}* _${genfunc}_ptr; |
| 547 | # endif |
| 548 | EOF |
| 549 | push @struct, <<EOF; |
| 550 | # ifdef USE_${GENFUNC}_FPTR |
| 551 | FILE* _${genfunc}_fptr; |
| 552 | # endif |
| 553 | EOF |
| 554 | push @init, <<EOF; |
| 555 | # ifdef USE_${GENFUNC}_FPTR |
| 556 | PL_reentrant_buffer->_${genfunc}_fptr = NULL; |
| 557 | # endif |
| 558 | EOF |
| 559 | my $sc = $genfunc eq 'grent' ? |
| 560 | '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX'; |
| 561 | my $sz = "_${genfunc}_size"; |
| 562 | push @size, <<EOF; |
| 563 | # if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__) |
| 564 | PL_reentrant_buffer->$sz = sysconf($sc); |
| 565 | if (PL_reentrant_buffer->$sz == (size_t) -1) |
| 566 | PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE; |
| 567 | # else |
| 568 | # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ) |
| 569 | PL_reentrant_buffer->$sz = SIABUFSIZ; |
| 570 | # else |
| 571 | # ifdef __sgi |
| 572 | PL_reentrant_buffer->$sz = BUFSIZ; |
| 573 | # else |
| 574 | PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE; |
| 575 | # endif |
| 576 | # endif |
| 577 | # endif |
| 578 | EOF |
| 579 | pushinitfree $genfunc; |
| 580 | pushssif $endif; |
| 581 | } |
| 582 | elsif ($func =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) { |
| 583 | pushssif $ifdef; |
| 584 | my $genfunc = $func; |
| 585 | $genfunc =~ s/byname/ent/; |
| 586 | $genfunc =~ s/^get//; |
| 587 | my $GENFUNC = uc $genfunc; |
| 588 | my $D = ifprotomatch($FUNC, grep {/D/} @p); |
| 589 | my $d = $seend{$func}; |
| 590 | $d =~ s/\*$//; # snip: we need need the base type. |
| 591 | push @struct, <<EOF; |
| 592 | $seent{$func} _${genfunc}_struct; |
| 593 | # if $D |
| 594 | $d _${genfunc}_data; |
| 595 | # else |
| 596 | char* _${genfunc}_buffer; |
| 597 | size_t _${genfunc}_size; |
| 598 | # endif |
| 599 | # ifdef USE_${GENFUNC}_PTR |
| 600 | $seent{$func}* _${genfunc}_ptr; |
| 601 | # endif |
| 602 | EOF |
| 603 | push @struct, <<EOF; |
| 604 | # ifdef USE_${GENFUNC}_ERRNO |
| 605 | int _${genfunc}_errno; |
| 606 | # endif |
| 607 | EOF |
| 608 | push @size, <<EOF; |
| 609 | #if !($D) |
| 610 | PL_reentrant_buffer->_${genfunc}_size = REENTRANTUSUALSIZE; |
| 611 | #endif |
| 612 | EOF |
| 613 | push @init, <<EOF; |
| 614 | #if !($D) |
| 615 | Newx(PL_reentrant_buffer->_${genfunc}_buffer, PL_reentrant_buffer->_${genfunc}_size, char); |
| 616 | #endif |
| 617 | EOF |
| 618 | push @free, <<EOF; |
| 619 | #if !($D) |
| 620 | Safefree(PL_reentrant_buffer->_${genfunc}_buffer); |
| 621 | #endif |
| 622 | EOF |
| 623 | pushssif $endif; |
| 624 | } |
| 625 | elsif ($func =~ /^(readdir|readdir64)$/) { |
| 626 | pushssif $ifdef; |
| 627 | my $R = ifprotomatch($FUNC, grep {/R/} @p); |
| 628 | push @struct, <<EOF; |
| 629 | $seent{$func}* _${func}_struct; |
| 630 | size_t _${func}_size; |
| 631 | # if $R |
| 632 | $seent{$func}* _${func}_ptr; |
| 633 | # endif |
| 634 | EOF |
| 635 | push @size, <<EOF; |
| 636 | /* This is the size Solaris recommends. |
| 637 | * (though we go static, should use pathconf() instead) */ |
| 638 | PL_reentrant_buffer->_${func}_size = sizeof($seent{$func}) + MAXPATHLEN + 1; |
| 639 | EOF |
| 640 | push @init, <<EOF; |
| 641 | PL_reentrant_buffer->_${func}_struct = ($seent{$func}*)safemalloc(PL_reentrant_buffer->_${func}_size); |
| 642 | EOF |
| 643 | push @free, <<EOF; |
| 644 | Safefree(PL_reentrant_buffer->_${func}_struct); |
| 645 | EOF |
| 646 | pushssif $endif; |
| 647 | } |
| 648 | |
| 649 | push @wrap, $ifdef; |
| 650 | |
| 651 | push @wrap, <<EOF; |
| 652 | # if defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1) |
| 653 | # undef $func |
| 654 | EOF |
| 655 | |
| 656 | # Write out what we have learned. |
| 657 | |
| 658 | my @v = 'a'..'z'; |
| 659 | my $v = join(", ", @v[0..$seenu{$func}-1]); |
| 660 | for my $p (@p) { |
| 661 | my ($r, $a) = split '_', $p; |
| 662 | my $test = $r eq 'I' ? ' == 0' : ''; |
| 663 | my $true = 1; |
| 664 | my $genfunc = $func; |
| 665 | if ($genfunc =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) { |
| 666 | $genfunc = "${1}ent"; |
| 667 | } elsif ($genfunc eq 'srand48') { |
| 668 | $genfunc = "drand48"; |
| 669 | } |
| 670 | my $b = $a; |
| 671 | my $w = ''; |
| 672 | substr($b, 0, $seenu{$func}) = ''; |
| 673 | if ($func =~ /^random$/) { |
| 674 | $true = "PL_reentrant_buffer->_random_retval"; |
| 675 | } elsif ($b =~ /R/) { |
| 676 | $true = "PL_reentrant_buffer->_${genfunc}_ptr"; |
| 677 | } elsif ($b =~ /T/ && $func eq 'drand48') { |
| 678 | $true = "PL_reentrant_buffer->_${genfunc}_double"; |
| 679 | } elsif ($b =~ /S/) { |
| 680 | if ($func =~ /^readdir/) { |
| 681 | $true = "PL_reentrant_buffer->_${genfunc}_struct"; |
| 682 | } else { |
| 683 | $true = "&PL_reentrant_buffer->_${genfunc}_struct"; |
| 684 | } |
| 685 | } elsif ($b =~ /B/) { |
| 686 | $true = "PL_reentrant_buffer->_${genfunc}_buffer"; |
| 687 | } |
| 688 | if (length $b) { |
| 689 | $w = join ", ", |
| 690 | map { |
| 691 | $_ eq 'R' ? |
| 692 | "&PL_reentrant_buffer->_${genfunc}_ptr" : |
| 693 | $_ eq 'E' ? |
| 694 | "&PL_reentrant_buffer->_${genfunc}_errno" : |
| 695 | $_ eq 'B' ? |
| 696 | "PL_reentrant_buffer->_${genfunc}_buffer" : |
| 697 | $_ =~ /^[WI]$/ ? |
| 698 | "PL_reentrant_buffer->_${genfunc}_size" : |
| 699 | $_ eq 'H' ? |
| 700 | "&PL_reentrant_buffer->_${genfunc}_fptr" : |
| 701 | $_ eq 'D' ? |
| 702 | "&PL_reentrant_buffer->_${genfunc}_data" : |
| 703 | $_ eq 'S' ? |
| 704 | ($func =~ /^readdir\d*$/ ? |
| 705 | "PL_reentrant_buffer->_${genfunc}_struct" : |
| 706 | $func =~ /^crypt$/ ? |
| 707 | "PL_reentrant_buffer->_${genfunc}_struct_buffer" : |
| 708 | "&PL_reentrant_buffer->_${genfunc}_struct") : |
| 709 | $_ eq 'T' && $func eq 'drand48' ? |
| 710 | "&PL_reentrant_buffer->_${genfunc}_double" : |
| 711 | $_ =~ /^[ilt]$/ && $func eq 'random' ? |
| 712 | "&PL_reentrant_buffer->_random_retval" : |
| 713 | $_ |
| 714 | } split '', $b; |
| 715 | $w = ", $w" if length $v; |
| 716 | } |
| 717 | |
| 718 | my $call = "${func}_r($v$w)"; |
| 719 | if ($func eq 'localtime') { |
| 720 | $call = "L_R_TZSET $call"; |
| 721 | } |
| 722 | |
| 723 | # Must make OpenBSD happy |
| 724 | my $memzero = ''; |
| 725 | if($p =~ /D$/ && |
| 726 | ($genfunc eq 'protoent' || $genfunc eq 'servent')) { |
| 727 | $memzero = 'REENTR_MEMZERO(&PL_reentrant_buffer->_' . $genfunc . '_data, sizeof(PL_reentrant_buffer->_' . $genfunc . '_data)),'; |
| 728 | } |
| 729 | push @wrap, <<EOF; |
| 730 | # if !defined($func) && ${FUNC}_R_PROTO == REENTRANT_PROTO_$p |
| 731 | EOF |
| 732 | if ($r eq 'V' || $r eq 'B') { |
| 733 | push @wrap, <<EOF; |
| 734 | # define $func($v) $call |
| 735 | EOF |
| 736 | } else { |
| 737 | if ($func =~ /^get/) { |
| 738 | my $rv = $v ? ", $v" : ""; |
| 739 | if ($r eq 'I') { |
| 740 | push @wrap, <<EOF; |
| 741 | # define $func($v) ($memzero(PL_reentrant_retint = $call)$test ? $true : ((PL_reentrant_retint == ERANGE) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0)) |
| 742 | EOF |
| 743 | } else { |
| 744 | push @wrap, <<EOF; |
| 745 | # define $func($v) ($call$test ? $true : ((errno == ERANGE) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0)) |
| 746 | EOF |
| 747 | } |
| 748 | } else { |
| 749 | push @wrap, <<EOF; |
| 750 | # define $func($v) ($call$test ? $true : 0) |
| 751 | EOF |
| 752 | } |
| 753 | } |
| 754 | push @wrap, <<EOF; |
| 755 | # endif /* if defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1) */ |
| 756 | EOF |
| 757 | } |
| 758 | |
| 759 | push @wrap, <<EOF; |
| 760 | # endif /* HAS_\U$func */ |
| 761 | EOF |
| 762 | |
| 763 | push @wrap, $endif, "\n"; |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | local $" = ''; |
| 768 | |
| 769 | print <<EOF; |
| 770 | |
| 771 | /* Defines for indicating which special features are supported. */ |
| 772 | |
| 773 | @define |
| 774 | typedef struct { |
| 775 | @struct |
| 776 | int dummy; /* cannot have empty structs */ |
| 777 | } REENTR; |
| 778 | |
| 779 | /* The wrappers. */ |
| 780 | |
| 781 | @wrap |
| 782 | |
| 783 | #endif /* USE_REENTRANT_API */ |
| 784 | |
| 785 | #endif |
| 786 | |
| 787 | /* ex: set ro: */ |
| 788 | EOF |
| 789 | |
| 790 | safer_close($h); |
| 791 | rename_if_different('reentr.h-new', 'reentr.h'); |
| 792 | |
| 793 | # Prepare to write the reentr.c. |
| 794 | |
| 795 | # safer_unlink 'reentr.c'; |
| 796 | my $c = safer_open("reentr.c-new"); |
| 797 | select $c; |
| 798 | print <<EOF; |
| 799 | /* -*- buffer-read-only: t -*- |
| 800 | * |
| 801 | * reentr.c |
| 802 | * |
| 803 | * Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others |
| 804 | * |
| 805 | * You may distribute under the terms of either the GNU General Public |
| 806 | * License or the Artistic License, as specified in the README file. |
| 807 | * |
| 808 | * !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
| 809 | * This file is built by reentr.pl from data in reentr.pl. |
| 810 | * |
| 811 | * "Saruman," I said, standing away from him, "only one hand at a time can |
| 812 | * wield the One, and you know that well, so do not trouble to say we!" |
| 813 | * |
| 814 | * This file contains a collection of automatically created wrappers |
| 815 | * (created by running reentr.pl) for reentrant (thread-safe) versions of |
| 816 | * various library calls, such as getpwent_r. The wrapping is done so |
| 817 | * that other files like pp_sys.c calling those library functions need not |
| 818 | * care about the differences between various platforms' idiosyncrasies |
| 819 | * regarding these reentrant interfaces. |
| 820 | */ |
| 821 | |
| 822 | #include "EXTERN.h" |
| 823 | #define PERL_IN_REENTR_C |
| 824 | #include "perl.h" |
| 825 | #include "reentr.h" |
| 826 | |
| 827 | void |
| 828 | Perl_reentrant_size(pTHX) { |
| 829 | #ifdef USE_REENTRANT_API |
| 830 | #define REENTRANTSMALLSIZE 256 /* Make something up. */ |
| 831 | #define REENTRANTUSUALSIZE 4096 /* Make something up. */ |
| 832 | @size |
| 833 | #endif /* USE_REENTRANT_API */ |
| 834 | } |
| 835 | |
| 836 | void |
| 837 | Perl_reentrant_init(pTHX) { |
| 838 | #ifdef USE_REENTRANT_API |
| 839 | Newx(PL_reentrant_buffer, 1, REENTR); |
| 840 | Perl_reentrant_size(aTHX); |
| 841 | @init |
| 842 | #endif /* USE_REENTRANT_API */ |
| 843 | } |
| 844 | |
| 845 | void |
| 846 | Perl_reentrant_free(pTHX) { |
| 847 | #ifdef USE_REENTRANT_API |
| 848 | @free |
| 849 | Safefree(PL_reentrant_buffer); |
| 850 | #endif /* USE_REENTRANT_API */ |
| 851 | } |
| 852 | |
| 853 | void* |
| 854 | Perl_reentrant_retry(const char *f, ...) |
| 855 | { |
| 856 | dTHX; |
| 857 | void *retptr = NULL; |
| 858 | va_list ap; |
| 859 | #ifdef USE_REENTRANT_API |
| 860 | /* Easier to special case this here than in embed.pl. (Look at what it |
| 861 | generates for proto.h) */ |
| 862 | PERL_ARGS_ASSERT_REENTRANT_RETRY; |
| 863 | #endif |
| 864 | va_start(ap, f); |
| 865 | { |
| 866 | #ifdef USE_REENTRANT_API |
| 867 | # if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER) |
| 868 | void *p0; |
| 869 | # endif |
| 870 | # if defined(USE_SERVENT_BUFFER) |
| 871 | void *p1; |
| 872 | # endif |
| 873 | # if defined(USE_HOSTENT_BUFFER) |
| 874 | size_t asize; |
| 875 | # endif |
| 876 | # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER) |
| 877 | int anint; |
| 878 | # endif |
| 879 | |
| 880 | switch (PL_op->op_type) { |
| 881 | #ifdef USE_HOSTENT_BUFFER |
| 882 | case OP_GHBYADDR: |
| 883 | case OP_GHBYNAME: |
| 884 | case OP_GHOSTENT: |
| 885 | { |
| 886 | #ifdef PERL_REENTRANT_MAXSIZE |
| 887 | if (PL_reentrant_buffer->_hostent_size <= |
| 888 | PERL_REENTRANT_MAXSIZE / 2) |
| 889 | #endif |
| 890 | { |
| 891 | PL_reentrant_buffer->_hostent_size *= 2; |
| 892 | Renew(PL_reentrant_buffer->_hostent_buffer, |
| 893 | PL_reentrant_buffer->_hostent_size, char); |
| 894 | switch (PL_op->op_type) { |
| 895 | case OP_GHBYADDR: |
| 896 | p0 = va_arg(ap, void *); |
| 897 | asize = va_arg(ap, size_t); |
| 898 | anint = va_arg(ap, int); |
| 899 | retptr = gethostbyaddr(p0, asize, anint); break; |
| 900 | case OP_GHBYNAME: |
| 901 | p0 = va_arg(ap, void *); |
| 902 | retptr = gethostbyname((char *)p0); break; |
| 903 | case OP_GHOSTENT: |
| 904 | retptr = gethostent(); break; |
| 905 | default: |
| 906 | SETERRNO(ERANGE, LIB_INVARG); |
| 907 | break; |
| 908 | } |
| 909 | } |
| 910 | } |
| 911 | break; |
| 912 | #endif |
| 913 | #ifdef USE_GRENT_BUFFER |
| 914 | case OP_GGRNAM: |
| 915 | case OP_GGRGID: |
| 916 | case OP_GGRENT: |
| 917 | { |
| 918 | #ifdef PERL_REENTRANT_MAXSIZE |
| 919 | if (PL_reentrant_buffer->_grent_size <= |
| 920 | PERL_REENTRANT_MAXSIZE / 2) |
| 921 | #endif |
| 922 | { |
| 923 | Gid_t gid; |
| 924 | PL_reentrant_buffer->_grent_size *= 2; |
| 925 | Renew(PL_reentrant_buffer->_grent_buffer, |
| 926 | PL_reentrant_buffer->_grent_size, char); |
| 927 | switch (PL_op->op_type) { |
| 928 | case OP_GGRNAM: |
| 929 | p0 = va_arg(ap, void *); |
| 930 | retptr = getgrnam((char *)p0); break; |
| 931 | case OP_GGRGID: |
| 932 | #if Gid_t_size < INTSIZE |
| 933 | gid = (Gid_t)va_arg(ap, int); |
| 934 | #else |
| 935 | gid = va_arg(ap, Gid_t); |
| 936 | #endif |
| 937 | retptr = getgrgid(gid); break; |
| 938 | case OP_GGRENT: |
| 939 | retptr = getgrent(); break; |
| 940 | default: |
| 941 | SETERRNO(ERANGE, LIB_INVARG); |
| 942 | break; |
| 943 | } |
| 944 | } |
| 945 | } |
| 946 | break; |
| 947 | #endif |
| 948 | #ifdef USE_NETENT_BUFFER |
| 949 | case OP_GNBYADDR: |
| 950 | case OP_GNBYNAME: |
| 951 | case OP_GNETENT: |
| 952 | { |
| 953 | #ifdef PERL_REENTRANT_MAXSIZE |
| 954 | if (PL_reentrant_buffer->_netent_size <= |
| 955 | PERL_REENTRANT_MAXSIZE / 2) |
| 956 | #endif |
| 957 | { |
| 958 | Netdb_net_t net; |
| 959 | PL_reentrant_buffer->_netent_size *= 2; |
| 960 | Renew(PL_reentrant_buffer->_netent_buffer, |
| 961 | PL_reentrant_buffer->_netent_size, char); |
| 962 | switch (PL_op->op_type) { |
| 963 | case OP_GNBYADDR: |
| 964 | net = va_arg(ap, Netdb_net_t); |
| 965 | anint = va_arg(ap, int); |
| 966 | retptr = getnetbyaddr(net, anint); break; |
| 967 | case OP_GNBYNAME: |
| 968 | p0 = va_arg(ap, void *); |
| 969 | retptr = getnetbyname((char *)p0); break; |
| 970 | case OP_GNETENT: |
| 971 | retptr = getnetent(); break; |
| 972 | default: |
| 973 | SETERRNO(ERANGE, LIB_INVARG); |
| 974 | break; |
| 975 | } |
| 976 | } |
| 977 | } |
| 978 | break; |
| 979 | #endif |
| 980 | #ifdef USE_PWENT_BUFFER |
| 981 | case OP_GPWNAM: |
| 982 | case OP_GPWUID: |
| 983 | case OP_GPWENT: |
| 984 | { |
| 985 | #ifdef PERL_REENTRANT_MAXSIZE |
| 986 | if (PL_reentrant_buffer->_pwent_size <= |
| 987 | PERL_REENTRANT_MAXSIZE / 2) |
| 988 | #endif |
| 989 | { |
| 990 | Uid_t uid; |
| 991 | PL_reentrant_buffer->_pwent_size *= 2; |
| 992 | Renew(PL_reentrant_buffer->_pwent_buffer, |
| 993 | PL_reentrant_buffer->_pwent_size, char); |
| 994 | switch (PL_op->op_type) { |
| 995 | case OP_GPWNAM: |
| 996 | p0 = va_arg(ap, void *); |
| 997 | retptr = getpwnam((char *)p0); break; |
| 998 | case OP_GPWUID: |
| 999 | #if Uid_t_size < INTSIZE |
| 1000 | uid = (Uid_t)va_arg(ap, int); |
| 1001 | #else |
| 1002 | uid = va_arg(ap, Uid_t); |
| 1003 | #endif |
| 1004 | retptr = getpwuid(uid); break; |
| 1005 | case OP_GPWENT: |
| 1006 | retptr = getpwent(); break; |
| 1007 | default: |
| 1008 | SETERRNO(ERANGE, LIB_INVARG); |
| 1009 | break; |
| 1010 | } |
| 1011 | } |
| 1012 | } |
| 1013 | break; |
| 1014 | #endif |
| 1015 | #ifdef USE_PROTOENT_BUFFER |
| 1016 | case OP_GPBYNAME: |
| 1017 | case OP_GPBYNUMBER: |
| 1018 | case OP_GPROTOENT: |
| 1019 | { |
| 1020 | #ifdef PERL_REENTRANT_MAXSIZE |
| 1021 | if (PL_reentrant_buffer->_protoent_size <= |
| 1022 | PERL_REENTRANT_MAXSIZE / 2) |
| 1023 | #endif |
| 1024 | { |
| 1025 | PL_reentrant_buffer->_protoent_size *= 2; |
| 1026 | Renew(PL_reentrant_buffer->_protoent_buffer, |
| 1027 | PL_reentrant_buffer->_protoent_size, char); |
| 1028 | switch (PL_op->op_type) { |
| 1029 | case OP_GPBYNAME: |
| 1030 | p0 = va_arg(ap, void *); |
| 1031 | retptr = getprotobyname((char *)p0); break; |
| 1032 | case OP_GPBYNUMBER: |
| 1033 | anint = va_arg(ap, int); |
| 1034 | retptr = getprotobynumber(anint); break; |
| 1035 | case OP_GPROTOENT: |
| 1036 | retptr = getprotoent(); break; |
| 1037 | default: |
| 1038 | SETERRNO(ERANGE, LIB_INVARG); |
| 1039 | break; |
| 1040 | } |
| 1041 | } |
| 1042 | } |
| 1043 | break; |
| 1044 | #endif |
| 1045 | #ifdef USE_SERVENT_BUFFER |
| 1046 | case OP_GSBYNAME: |
| 1047 | case OP_GSBYPORT: |
| 1048 | case OP_GSERVENT: |
| 1049 | { |
| 1050 | #ifdef PERL_REENTRANT_MAXSIZE |
| 1051 | if (PL_reentrant_buffer->_servent_size <= |
| 1052 | PERL_REENTRANT_MAXSIZE / 2) |
| 1053 | #endif |
| 1054 | { |
| 1055 | PL_reentrant_buffer->_servent_size *= 2; |
| 1056 | Renew(PL_reentrant_buffer->_servent_buffer, |
| 1057 | PL_reentrant_buffer->_servent_size, char); |
| 1058 | switch (PL_op->op_type) { |
| 1059 | case OP_GSBYNAME: |
| 1060 | p0 = va_arg(ap, void *); |
| 1061 | p1 = va_arg(ap, void *); |
| 1062 | retptr = getservbyname((char *)p0, (char *)p1); break; |
| 1063 | case OP_GSBYPORT: |
| 1064 | anint = va_arg(ap, int); |
| 1065 | p0 = va_arg(ap, void *); |
| 1066 | retptr = getservbyport(anint, (char *)p0); break; |
| 1067 | case OP_GSERVENT: |
| 1068 | retptr = getservent(); break; |
| 1069 | default: |
| 1070 | SETERRNO(ERANGE, LIB_INVARG); |
| 1071 | break; |
| 1072 | } |
| 1073 | } |
| 1074 | } |
| 1075 | break; |
| 1076 | #endif |
| 1077 | default: |
| 1078 | /* Not known how to retry, so just fail. */ |
| 1079 | break; |
| 1080 | } |
| 1081 | #else |
| 1082 | PERL_UNUSED_ARG(f); |
| 1083 | #endif |
| 1084 | } |
| 1085 | va_end(ap); |
| 1086 | return retptr; |
| 1087 | } |
| 1088 | |
| 1089 | /* ex: set ro: */ |
| 1090 | EOF |
| 1091 | |
| 1092 | safer_close($c); |
| 1093 | rename_if_different('reentr.c-new', 'reentr.c'); |
| 1094 | |
| 1095 | __DATA__ |
| 1096 | asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI |
| 1097 | crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD* |
| 1098 | ctermid B |stdio | |B_B |
| 1099 | ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI |
| 1100 | drand48 |stdlib |struct drand48_data |I_ST|T=double* |
| 1101 | endgrent |grp | |I_H|V_H |
| 1102 | endhostent |netdb | |I_D|V_D|D=struct hostent_data* |
| 1103 | endnetent |netdb | |I_D|V_D|D=struct netent_data* |
| 1104 | endprotoent |netdb | |I_D|V_D|D=struct protoent_data* |
| 1105 | endpwent |pwd | |I_H|V_H |
| 1106 | endservent |netdb | |I_D|V_D|D=struct servent_data* |
| 1107 | getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
| 1108 | getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t |
| 1109 | getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI |
| 1110 | gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|I_TsISBWRE|D=struct hostent_data*|T=const void*|s=socklen_t |
| 1111 | gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data* |
| 1112 | gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data* |
| 1113 | getlogin |unistd |char |I_BW|I_BI|B_BW|B_BI |
| 1114 | getnetbyaddr LI |netdb |struct netent |I_UISBWRE|I_LISBI|S_TISBI|S_LISBI|I_TISD|I_LISD|I_IISD|I_uISBWRE|D=struct netent_data*|T=in_addr_t|U=unsigned long|u=uint32_t |
| 1115 | getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data* |
| 1116 | getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data* |
| 1117 | getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data* |
| 1118 | getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data* |
| 1119 | getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data* |
| 1120 | getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
| 1121 | getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI |
| 1122 | getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t |
| 1123 | getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data* |
| 1124 | getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data* |
| 1125 | getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data* |
| 1126 | getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI |
| 1127 | gmtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
| 1128 | localtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
| 1129 | random |stdlib |struct random_data|I_iS|I_lS|I_St|i=int*|l=long*|t=int32_t* |
| 1130 | readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR* |
| 1131 | readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR* |
| 1132 | setgrent |grp | |I_H|V_H |
| 1133 | sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data* |
| 1134 | setlocale IC |locale | |I_ICBI |
| 1135 | setnetent I |netdb | |I_ID|V_ID|D=struct netent_data* |
| 1136 | setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data* |
| 1137 | setpwent |pwd | |I_H|V_H |
| 1138 | setservent I |netdb | |I_ID|V_ID|D=struct servent_data* |
| 1139 | srand48 L |stdlib |struct drand48_data |I_LS |
| 1140 | srandom T |stdlib |struct random_data|I_TS|T=unsigned int |
| 1141 | strerror I |string | |I_IBW|I_IBI|B_IBW |
| 1142 | tmpnam B |stdio | |B_B |
| 1143 | ttyname I |unistd | |I_IBW|I_IBI|B_IBI |