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Avoid bad prototypes.
[perl5.git] / reentr.pl
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10bc17b6
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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
8use strict;
9use Getopt::Std;
10my %opts;
11getopts('U', \%opts);
12
13my %map = (
14 V => "void",
15 A => "char*", # as an input argument
16 B => "char*", # as an output argument
17 C => "const char*", # as a read-only input argument
18 I => "int",
19 L => "long",
20 W => "size_t",
21 H => "FILE**",
22 E => "int*",
23 );
24
25# (See the definitions after __DATA__.)
26# In func|inc|type|... a "S" means "type*", and a "R" means "type**".
27# (The "types" are often structs, such as "struct passwd".)
28#
29# After the prototypes one can have |X=...|Y=... to define more types.
30# A commonly used extra type is to define D to be equal to "type_data",
31# for example "struct_hostent_data to" go with "struct hostent".
32#
33# Example #1: I_XSBWR means int func_r(X, type, char*, size_t, type**)
34# Example #2: S_SBIE means type func_r(type, char*, int, int*)
35# Example #3: S_CBI means type func_r(const char*, char*, int)
36
37
38die "reentr.h: $!" unless open(H, ">reentr.h");
39select H;
40print <<EOF;
41/*
42 * reentr.h
43 *
44 * Copyright (c) 1997-2002, Larry Wall
45 *
46 * You may distribute under the terms of either the GNU General Public
47 * License or the Artistic License, as specified in the README file.
48 *
49 * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
50 * This file is built by reentrl.pl from data in reentr.pl.
51 */
52
53#ifndef REENTR_H
54#define REENTR_H
55
56#ifdef USE_REENTRANT_API
57
58/* Deprecations: some platforms have the said reentrant interfaces
59 * but they are declared obsolete and are not to be used. Often this
60 * means that the platform has threadsafed the interfaces (hopefully).
61 * All this is OS version dependent, so we are of course fooling ourselves.
62 * If you know of more deprecations on some platforms, please add your own. */
63
64#ifdef __hpux
65# undef HAS_CRYPT_R
66# undef HAS_DRAND48_R
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67# undef HAS_ENDGRENT_R
68# undef HAS_ENDPWENT_R
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69# undef HAS_GETGRENT_R
70# undef HAS_GETPWENT_R
71# undef HAS_SETLOCALE_R
72# undef HAS_SRAND48_R
73# undef HAS_STRERROR_R
74# define NETDB_R_OBSOLETE
75#endif
76
77#if defined(__osf__) && defined(__alpha) /* Tru64 aka Digital UNIX */
78# undef HAS_CRYPT_R
79# undef HAS_STRERROR_R
80# define NETDB_R_OBSOLETE
81#endif
82
83#ifdef NETDB_R_OBSOLETE
84# undef HAS_ENDHOSTENT_R
85# undef HAS_ENDNETENT_R
86# undef HAS_ENDPROTOENT_R
87# undef HAS_ENDSERVENT_R
88# undef HAS_GETHOSTBYADDR_R
89# undef HAS_GETHOSTBYNAME_R
90# undef HAS_GETHOSTENT_R
91# undef HAS_GETNETBYADDR_R
92# undef HAS_GETNETBYNAME_R
93# undef HAS_GETNETENT_R
94# undef HAS_GETPROTOBYNAME_R
95# undef HAS_GETPROTOBYNUMBER_R
96# undef HAS_GETPROTOENT_R
97# undef HAS_GETSERVBYNAME_R
98# undef HAS_GETSERVBYPORT_R
99# undef HAS_GETSERVENT_R
100# undef HAS_SETHOSTENT_R
101# undef HAS_SETNETENT_R
102# undef HAS_SETPROTOENT_R
103# undef HAS_SETSERVENT_R
104#endif
105
106#ifdef I_PWD
107# include <pwd.h>
108#endif
109#ifdef I_GRP
110# include <grp.h>
111#endif
112#ifdef I_NETDB
113# include <netdb.h>
114#endif
115#ifdef I_STDLIB
116# include <stdlib.h> /* drand48_data */
117#endif
118#ifdef I_CRYPT
119# ifdef I_CRYPT
120# include <crypt.h>
121# endif
122#endif
123#ifdef HAS_GETSPNAM_R
124# ifdef I_SHADOW
125# include <shadow.h>
126# endif
127#endif
128
129EOF
130
131my %seenh;
132my %seena;
133my @seenf;
134my %seenp;
135my %seent;
136my %seens;
137my %seend;
138my %seenu;
139
140while (<DATA>) {
141 next if /^\s+$/;
142 chomp;
143 my ($f, $h, $t, @p) = split(/\s*\|\s*/, $_, -1);
144 my $u;
145 ($f, $u) = split(' ', $f);
146 $seenu{$f} = defined $u ? length $u : 0;
147 my $F = uc $f;
148 push @seenf, $f;
149 my %m = %map;
150 if ($t) {
151 $m{S} = "$t*";
152 $m{R} = "$t**";
153 }
154 if (@p) {
155 while ($p[-1] =~ /=/) {
156 my ($k, $v) = ($p[-1] =~ /^([A-Za-z])\s*=\s*(.*)/);
157 $m{$k} = $v;
158 pop @p;
159 }
160 }
161 if ($opts{U} && open(U, ">d_${f}_r.U")) {
162 select U;
163 }
31ee0cb7
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164 my $prereqs = '';
165 my $prereqh = '';
166 my $prereqsh = '';
167 if ($h ne 'stdio') { # There's no i_stdio.
168 $prereqs = "i_$h";
169 $prereqh = "$h.h";
170 $prereqsh = "\$$prereqs $prereqh";
171 }
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172 print <<EOF if $opts{U};
173?RCS: \$Id: d_${f}_r.U,v $
174?RCS:
175?RCS: Copyright (c) 2002 Jarkko Hietaniemi
176?RCS:
177?RCS: You may distribute under the terms of either the GNU General Public
178?RCS: License or the Artistic License, as specified in the README file.
179?RCS:
180?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
181?RCS:
cce6a207 182?MAKE:d_${f}_r ${f}_r_proto: Inlibc Protochk Hasproto i_systypes i_systime $prereqs usethreads i_pthread
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183?MAKE: -pick add \$@ %<
184?S:d_${f}_r:
185?S: This variable conditionally defines the HAS_${F}_R symbol,
186?S: which indicates to the C program that the ${f}_r()
187?S: routine is available.
188?S:.
189?S:${f}_r_proto:
190?S: This variable encodes the prototype of ${f}_r.
191?S:.
192?C:HAS_${F}_R:
193?C: This symbol, if defined, indicates that the ${f}_r routine
194?C: is available to ${f} re-entrantly.
195?C:.
196?C:${F}_R_PROTO:
197?C: This symbol encodes the prototype of ${f}_r.
198?C:.
199?H:#\$d_${f}_r HAS_${F}_R /**/
200?H:#define ${F}_R_PROTO \$${f}_r_proto /**/
201?H:.
a48ec845 202?T:try hdrs d_${f}_r_proto
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203?LINT:set d_${f}_r
204?LINT:set ${f}_r_proto
205: see if ${f}_r exists
206set ${f}_r d_${f}_r
207eval \$inlibc
208case "\$d_${f}_r" in
209"\$define")
31ee0cb7 210 hdrs="\$i_systypes sys/types.h define stdio.h $prereqsh"
90e831dc
SB
211 case "$h" in
212 time)
213 hdrs="\$hdrs \$i_systime sys/time.h"
214 ;;
215 esac
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216 case "\$d_${f}_r_proto:\$usethreads" in
217 ":define") d_${f}_r_proto=define
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218 set d_${f}_r_proto ${f}_r \$hdrs
219 eval \$hasproto ;;
220 *) ;;
221 esac
222 case "\$d_${f}_r_proto" in
223 define)
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224EOF
225 for my $p (@p) {
226 my ($r, $a) = ($p =~ /^(.)_(.+)/);
227 my $v = join(", ", map { $m{$_} } split '', $a);
228 if ($opts{U}) {
229 print <<EOF ;
230 case "\$${f}_r_proto" in
231 ''|0) try='$m{$r} ${f}_r($v);'
232 ./protochk "extern \$try" \$hdrs && ${f}_r_proto=$p ;;
233 esac
234EOF
235 }
236 $seenh{$f}->{$p}++;
237 push @{$seena{$f}}, $p;
238 $seenp{$p}++;
239 $seent{$f} = $t;
240 $seens{$f} = $m{S};
241 $seend{$f} = $m{D};
242 }
243 if ($opts{U}) {
244 print <<EOF;
245 case "\$${f}_r_proto" in
90e831dc 246 ''|0) d_${f}_r=undef
10bc17b6 247 ${f}_r_proto=0
a48ec845 248 echo "Disabling ${f}_r, cannot determine prototype." >&4 ;;
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249 * ) case "\$${f}_r_proto" in
250 REENTRANT_PROTO*) ;;
251 *) ${f}_r_proto="REENTRANT_PROTO_\$${f}_r_proto" ;;
252 esac
253 echo "Prototype: \$try" ;;
254 esac
255 ;;
c18e646a
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256 *) case "\$usethreads" in
257 define) echo "${f}_r has no prototype, not using it." >&4 ;;
258 esac
90e831dc
SB
259 d_${f}_r=undef
260 ${f}_r_proto=0
c18e646a 261 ;;
a48ec845
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262 esac
263 ;;
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264*) ${f}_r_proto=0
265 ;;
266esac
267
268EOF
269 close(U);
270 }
271}
272
273close DATA;
274
275select H;
276
277{
278 my $i = 1;
279 for my $p (sort keys %seenp) {
280 print "#define REENTRANT_PROTO_${p} ${i}\n";
281 $i++;
282 }
283}
284
285sub ifprotomatch {
286 my $F = shift;
287 join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_;
288}
289
290my @struct;
291my @size;
292my @init;
293my @free;
294my @wrap;
295my @define;
296
297sub pushssif {
298 push @struct, @_;
299 push @size, @_;
300 push @init, @_;
301 push @free, @_;
302}
303
304sub pushinitfree {
305 my $f = shift;
306 push @init, <<EOF;
307 New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char);
308EOF
309 push @free, <<EOF;
310 Safefree(PL_reentrant_buffer->_${f}_buffer);
311EOF
312}
313
314sub define {
315 my ($n, $p, @F) = @_;
316 my @H;
317 my $H = uc $F[0];
318 push @define, <<EOF;
319/* The @F using \L$n? */
320
321EOF
322 for my $f (@F) {
323 my $F = uc $f;
324 my $h = "${F}_R_HAS_$n";
325 push @H, $h;
326 my @h = grep { /$p/ } @{$seena{$f}};
327 if (@h) {
09310450 328 push @define, "#if defined(HAS_${F}_R) && (" . join(" || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
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329
330 push @define, <<EOF;
331# define $h
332#else
333# undef $h
334#endif
335EOF
336 }
337 }
338 push @define, <<EOF;
339
340/* Any of the @F using \L$n? */
341
342EOF
343 push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n";
344 push @define, <<EOF;
345# define USE_${H}_$n
346#else
347# undef USE_${H}_$n
348#endif
349
350EOF
351}
352
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353define('BUFFER', 'B',
354 qw(getgrent getgrgid getgrnam));
355
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356define('PTR', 'R',
357 qw(getgrent getgrgid getgrnam));
358define('PTR', 'R',
359 qw(getpwent getpwnam getpwuid));
360define('PTR', 'R',
361 qw(getspent getspnam));
362
363define('FPTR', 'H',
364 qw(getgrent getgrgid getgrnam));
365define('FPTR', 'H',
366 qw(getpwent getpwnam getpwuid));
367
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368define('BUFFER', 'B',
369 qw(getpwent getpwgid getpwnam));
370
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371define('PTR', 'R',
372 qw(gethostent gethostbyaddr gethostbyname));
373define('PTR', 'R',
374 qw(getnetent getnetbyaddr getnetbyname));
375define('PTR', 'R',
376 qw(getprotoent getprotobyname getprotobynumber));
377define('PTR', 'R',
378 qw(getservent getservbyname getservbyport));
379
edd309b7
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380define('BUFFER', 'B',
381 qw(gethostent gethostbyaddr gethostbyname));
382define('BUFFER', 'B',
383 qw(getnetent getnetbyaddr getnetbyname));
384define('BUFFER', 'B',
385 qw(getprotoent getprotobyname getprotobynumber));
386define('BUFFER', 'B',
387 qw(getservent getservbyname getservbyport));
388
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389define('ERRNO', 'E',
390 qw(gethostent gethostbyaddr gethostbyname));
391define('ERRNO', 'E',
392 qw(getnetent getnetbyaddr getnetbyname));
393
394for my $f (@seenf) {
395 my $F = uc $f;
396 my $ifdef = "#ifdef HAS_${F}_R\n";
397 my $endif = "#endif /* HAS_${F}_R */\n";
398 if (exists $seena{$f}) {
399 my @p = @{$seena{$f}};
400 if ($f =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
401 pushssif $ifdef;
402 push @struct, <<EOF;
403 char* _${f}_buffer;
404 size_t _${f}_size;
405EOF
406 push @size, <<EOF;
8695fa85 407 PL_reentrant_buffer->_${f}_size = REENTRANTSMALLSIZE;
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408EOF
409 pushinitfree $f;
410 pushssif $endif;
411 }
b430fd04 412 elsif ($f =~ /^(crypt)$/) {
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413 pushssif $ifdef;
414 push @struct, <<EOF;
b430fd04
JH
415#if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD
416 $seend{$f} _${f}_data;
417#else
10bc17b6 418 $seent{$f} _${f}_struct;
b430fd04 419#endif
10bc17b6 420EOF
b430fd04 421 push @init, <<EOF;
10bc17b6
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422#ifdef __GLIBC__
423 PL_reentrant_buffer->_${f}_struct.initialized = 0;
424#endif
425EOF
b430fd04
JH
426 pushssif $endif;
427 }
428 elsif ($f =~ /^(drand48|gmtime|localtime|random)$/) {
429 pushssif $ifdef;
430 push @struct, <<EOF;
431 $seent{$f} _${f}_struct;
432EOF
10bc17b6
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433 if ($1 eq 'drand48') {
434 push @struct, <<EOF;
435 double _${f}_double;
436EOF
437 }
438 pushssif $endif;
439 }
440 elsif ($f =~ /^(getgrnam|getpwnam|getspnam)$/) {
441 pushssif $ifdef;
442 my $g = $f;
443 $g =~ s/nam/ent/g;
444 my $G = uc $g;
445 push @struct, <<EOF;
446 $seent{$f} _${g}_struct;
447 char* _${g}_buffer;
448 size_t _${g}_size;
449EOF
450 push @struct, <<EOF;
451# ifdef USE_${G}_PTR
452 $seent{$f}* _${g}_ptr;
453# endif
454EOF
455 if ($g eq 'getspent') {
456 push @size, <<EOF;
457 PL_reentrant_buffer->_${g}_size = 1024;
458EOF
459 } else {
460 push @struct, <<EOF;
461# ifdef USE_${G}_FPTR
462 FILE* _${g}_fptr;
463# endif
464EOF
465 push @init, <<EOF;
466# ifdef USE_${G}_FPTR
467 PL_reentrant_buffer->_${g}_fptr = NULL;
468# endif
469EOF
470 my $sc = $g eq 'getgrent' ?
471 '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
e3410746
SR
472 my $sz = $g eq 'getgrent' ?
473 '_getgrent_size' : '_getpwent_size';
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474 push @size, <<EOF;
475# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
476 PL_reentrant_buffer->_${g}_size = sysconf($sc);
e3410746
SR
477 if (PL_reentrant_buffer->$sz == -1)
478 PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
10bc17b6
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479# else
480# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
481 PL_reentrant_buffer->_${g}_size = SIABUFSIZ;
482# else
483# ifdef __sgi
484 PL_reentrant_buffer->_${g}_size = BUFSIZ;
485# else
8695fa85 486 PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
10bc17b6
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487# endif
488# endif
489# endif
490EOF
491 }
492 pushinitfree $g;
493 pushssif $endif;
494 }
495 elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
496 pushssif $ifdef;
497 my $g = $f;
498 $g =~ s/byname/ent/;
499 my $G = uc $g;
500 my $D = ifprotomatch($F, grep {/D/} @p);
501 my $d = $seend{$f};
31ee0cb7 502 $d =~ s/\*$//; # snip: we need need the base type.
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503 push @struct, <<EOF;
504 $seent{$f} _${g}_struct;
505# if $D
506 $d _${g}_data;
507# else
508 char* _${g}_buffer;
509 size_t _${g}_size;
510# endif
511# ifdef USE_${G}_PTR
512 $seent{$f}* _${g}_ptr;
513# endif
514EOF
515 push @struct, <<EOF;
516# ifdef USE_${G}_ERRNO
517 int _${g}_errno;
518# endif
519EOF
520 push @size, <<EOF;
521#if !($D)
8695fa85 522 PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
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523#endif
524EOF
525 push @init, <<EOF;
526#if !($D)
527 New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char);
528#endif
529EOF
530 push @free, <<EOF;
531#if !($D)
532 Safefree(PL_reentrant_buffer->_${g}_buffer);
533#endif
534EOF
535 pushssif $endif;
536 }
537 elsif ($f =~ /^(readdir|readdir64)$/) {
538 pushssif $ifdef;
539 my $R = ifprotomatch($F, grep {/R/} @p);
540 push @struct, <<EOF;
541 $seent{$f}* _${f}_struct;
542 size_t _${f}_size;
543# if $R
544 $seent{$f}* _${f}_ptr;
545# endif
546EOF
547 push @size, <<EOF;
548 /* This is the size Solaris recommends.
549 * (though we go static, should use pathconf() instead) */
550 PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1;
551EOF
552 push @init, <<EOF;
553 PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size);
554EOF
555 push @free, <<EOF;
556 Safefree(PL_reentrant_buffer->_${f}_struct);
557EOF
558 pushssif $endif;
559 }
560
561 push @wrap, $ifdef;
562
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563 push @wrap, <<EOF;
564# undef $f
565EOF
566 my @v = 'a'..'z';
567 my $v = join(", ", @v[0..$seenu{$f}-1]);
568 for my $p (@p) {
569 my ($r, $a) = split '_', $p;
570 my $test = $r eq 'I' ? ' == 0' : '';
571 my $true = 1;
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572 my $g = $f;
573 if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
574 $g = "get$1ent";
575 } elsif ($g eq 'srand48') {
576 $g = "drand48";
577 }
578 my $b = $a;
579 my $w = '';
580 substr($b, 0, $seenu{$f}) = '';
581 if ($b =~ /R/) {
582 $true = "PL_reentrant_buffer->_${g}_ptr";
583 } elsif ($b =~ /T/ && $f eq 'drand48') {
584 $true = "PL_reentrant_buffer->_${g}_double";
585 } elsif ($b =~ /S/) {
586 if ($f =~ /^readdir/) {
587 $true = "PL_reentrant_buffer->_${g}_struct";
588 } else {
589 $true = "&PL_reentrant_buffer->_${g}_struct";
590 }
591 } elsif ($b =~ /B/) {
592 $true = "PL_reentrant_buffer->_${g}_buffer";
593 }
594 if (length $b) {
595 $w = join ", ",
596 map {
597 $_ eq 'R' ?
598 "&PL_reentrant_buffer->_${g}_ptr" :
599 $_ eq 'E' ?
600 "&PL_reentrant_buffer->_${g}_errno" :
601 $_ eq 'B' ?
602 "PL_reentrant_buffer->_${g}_buffer" :
603 $_ =~ /^[WI]$/ ?
604 "PL_reentrant_buffer->_${g}_size" :
605 $_ eq 'H' ?
606 "&PL_reentrant_buffer->_${g}_fptr" :
607 $_ eq 'D' ?
608 "&PL_reentrant_buffer->_${g}_data" :
609 $_ eq 'S' ?
610 ($f =~ /^readdir/ ?
611 "PL_reentrant_buffer->_${g}_struct" :
612 "&PL_reentrant_buffer->_${g}_struct" ) :
613 $_ eq 'T' && $f eq 'drand48' ?
614 "&PL_reentrant_buffer->_${g}_double" :
615 $_
616 } split '', $b;
617 $w = ", $w" if length $v;
618 }
619 my $call = "${f}_r($v$w)";
620 $call = "((errno = $call))" if $r eq 'I';
621 push @wrap, <<EOF;
622# if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p
623EOF
624 if ($r eq 'V' || $r eq 'B') {
625 push @wrap, <<EOF;
626# define $f($v) $call
627EOF
628 } else {
edd309b7
JH
629 if ($f =~ /^get/) {
630 my $rv = $v ? ", $v" : "";
631 push @wrap, <<EOF;
632# define $f($v) ($call$test ? $true : (errno == ERANGE ? Perl_reentrant_retry("$f"$rv) : 0))
10bc17b6 633EOF
edd309b7
JH
634 } else {
635 push @wrap, <<EOF;
636# define $f($v) ($call$test ? $true : 0)
637EOF
638 }
10bc17b6
JH
639 }
640 push @wrap, <<EOF;
641# endif
642EOF
643 }
644
645 push @wrap, $endif, "\n";
646 }
647}
648
649local $" = '';
650
651print <<EOF;
652
653/* Defines for indicating which special features are supported. */
654
655@define
656typedef struct {
657@struct
658} REENTR;
659
660/* The wrappers. */
661
662@wrap
663#endif /* USE_REENTRANT_API */
664
665#endif
666
667EOF
668
669close(H);
670
671die "reentr.c: $!" unless open(C, ">reentr.c");
672select C;
673print <<EOF;
674/*
675 * reentr.c
676 *
677 * Copyright (c) 1997-2002, Larry Wall
678 *
679 * You may distribute under the terms of either the GNU General Public
680 * License or the Artistic License, as specified in the README file.
681 *
682 * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
683 * This file is built by reentrl.pl from data in reentr.pl.
684 *
685 * "Saruman," I said, standing away from him, "only one hand at a time can
686 * wield the One, and you know that well, so do not trouble to say we!"
687 *
688 */
689
690#include "EXTERN.h"
691#define PERL_IN_REENTR_C
692#include "perl.h"
693#include "reentr.h"
694
695void
696Perl_reentrant_size(pTHX) {
697#ifdef USE_REENTRANT_API
8695fa85
SR
698#define REENTRANTSMALLSIZE 256 /* Make something up. */
699#define REENTRANTUSUALSIZE 4096 /* Make something up. */
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700@size
701#endif /* USE_REENTRANT_API */
702}
703
704void
705Perl_reentrant_init(pTHX) {
706#ifdef USE_REENTRANT_API
707 New(31337, PL_reentrant_buffer, 1, REENTR);
708 Perl_reentrant_size(aTHX);
709@init
710#endif /* USE_REENTRANT_API */
711}
712
713void
714Perl_reentrant_free(pTHX) {
715#ifdef USE_REENTRANT_API
716@free
717 Safefree(PL_reentrant_buffer);
718#endif /* USE_REENTRANT_API */
719}
720
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JH
721void*
722Perl_reentrant_retry(const char *f, ...)
723{
724 dTHX;
725 void *retptr = NULL;
726#ifdef USE_REENTRANT_API
e3410746
SR
727# if defined(USE_GETHOSTENT_BUFFER) || defined(USE_GETGRENT_BUFFER) || defined(USE_GETNETENT_BUFFER) || defined(USE_GETPWENT_BUFFER) || defined(USE_GETPROTOENT_BUFFER) || defined(USE_GETSERVENT_BUFFER)
728 void *p0;
729# endif
730# if defined(USE_GETSERVENT_BUFFER)
731 void *p1;
732# endif
733# if defined(USE_GETHOSTENT_BUFFER)
edd309b7 734 size_t asize;
e3410746
SR
735# endif
736# if defined(USE_GETHOSTENT_BUFFER) || defined(USE_GETNETENT_BUFFER) || defined(USE_GETPROTOENT_BUFFER) || defined(USE_GETSERVENT_BUFFER)
edd309b7 737 int anint;
e3410746 738# endif
edd309b7
JH
739 va_list ap;
740
741 va_start(ap, f);
742
743#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
744
745 switch (PL_op->op_type) {
746#ifdef USE_GETHOSTENT_BUFFER
747 case OP_GHBYADDR:
748 case OP_GHBYNAME:
749 case OP_GHOSTENT:
750 {
751 if (PL_reentrant_buffer->_gethostent_size <= REENTRANTHALFMAXSIZE) {
752 PL_reentrant_buffer->_gethostent_size *= 2;
753 Renew(PL_reentrant_buffer->_gethostent_buffer,
754 PL_reentrant_buffer->_gethostent_size, char);
755 switch (PL_op->op_type) {
756 case OP_GHBYADDR:
757 p0 = va_arg(ap, void *);
758 asize = va_arg(ap, size_t);
759 anint = va_arg(ap, int);
760 retptr = gethostbyaddr(p0, asize, anint); break;
761 case OP_GHBYNAME:
762 p0 = va_arg(ap, void *);
763 retptr = gethostbyname(p0); break;
764 case OP_GHOSTENT:
765 retptr = gethostent(); break;
766 default:
767 break;
768 }
769 }
770 }
771 break;
772#endif
773#ifdef USE_GETGRENT_BUFFER
774 case OP_GGRNAM:
775 case OP_GGRGID:
776 case OP_GGRENT:
777 {
778 if (PL_reentrant_buffer->_getgrent_size <= REENTRANTHALFMAXSIZE) {
779 Gid_t gid;
780 PL_reentrant_buffer->_getgrent_size *= 2;
781 Renew(PL_reentrant_buffer->_getgrent_buffer,
782 PL_reentrant_buffer->_getgrent_size, char);
783 switch (PL_op->op_type) {
784 case OP_GGRNAM:
785 p0 = va_arg(ap, void *);
786 retptr = getgrnam(p0); break;
787 case OP_GGRGID:
788 gid = va_arg(ap, Gid_t);
789 retptr = getgrgid(gid); break;
790 case OP_GGRENT:
791 retptr = getgrent(); break;
792 default:
793 break;
794 }
795 }
796 }
797 break;
798#endif
799#ifdef USE_GETNETENT_BUFFER
800 case OP_GNBYADDR:
801 case OP_GNBYNAME:
802 case OP_GNETENT:
803 {
804 if (PL_reentrant_buffer->_getnetent_size <= REENTRANTHALFMAXSIZE) {
805 Netdb_net_t net;
806 PL_reentrant_buffer->_getnetent_size *= 2;
807 Renew(PL_reentrant_buffer->_getnetent_buffer,
808 PL_reentrant_buffer->_getnetent_size, char);
809 switch (PL_op->op_type) {
810 case OP_GNBYADDR:
811 net = va_arg(ap, Netdb_net_t);
812 anint = va_arg(ap, int);
813 retptr = getnetbyaddr(net, anint); break;
814 case OP_GNBYNAME:
815 p0 = va_arg(ap, void *);
816 retptr = getnetbyname(p0); break;
817 case OP_GNETENT:
818 retptr = getnetent(); break;
819 default:
820 break;
821 }
822 }
823 }
824 break;
825#endif
826#ifdef USE_GETPWENT_BUFFER
827 case OP_GPWNAM:
828 case OP_GPWUID:
829 case OP_GPWENT:
830 {
831 if (PL_reentrant_buffer->_getpwent_size <= REENTRANTHALFMAXSIZE) {
832 Uid_t uid;
833 PL_reentrant_buffer->_getpwent_size *= 2;
834 Renew(PL_reentrant_buffer->_getpwent_buffer,
835 PL_reentrant_buffer->_getpwent_size, char);
836 switch (PL_op->op_type) {
837 case OP_GPWNAM:
838 p0 = va_arg(ap, void *);
839 retptr = getpwnam(p0); break;
840 case OP_GPWUID:
841 uid = va_arg(ap, Uid_t);
842 retptr = getpwuid(uid); break;
843 case OP_GPWENT:
844 retptr = getpwent(); break;
845 default:
846 break;
847 }
848 }
849 }
850 break;
851#endif
852#ifdef USE_GETPROTOENT_BUFFER
853 case OP_GPBYNAME:
854 case OP_GPBYNUMBER:
855 case OP_GPROTOENT:
856 {
857 if (PL_reentrant_buffer->_getprotoent_size <= REENTRANTHALFMAXSIZE) {
858 PL_reentrant_buffer->_getprotoent_size *= 2;
859 Renew(PL_reentrant_buffer->_getprotoent_buffer,
860 PL_reentrant_buffer->_getprotoent_size, char);
861 switch (PL_op->op_type) {
862 case OP_GPBYNAME:
863 p0 = va_arg(ap, void *);
864 retptr = getprotobyname(p0); break;
865 case OP_GPBYNUMBER:
866 anint = va_arg(ap, int);
867 retptr = getprotobynumber(anint); break;
868 case OP_GPROTOENT:
869 retptr = getprotoent(); break;
870 default:
871 break;
872 }
873 }
874 }
875 break;
876#endif
877#ifdef USE_GETSERVENT_BUFFER
878 case OP_GSBYNAME:
879 case OP_GSBYPORT:
880 case OP_GSERVENT:
881 {
882 if (PL_reentrant_buffer->_getservent_size <= REENTRANTHALFMAXSIZE) {
883 PL_reentrant_buffer->_getservent_size *= 2;
884 Renew(PL_reentrant_buffer->_getservent_buffer,
885 PL_reentrant_buffer->_getservent_size, char);
886 switch (PL_op->op_type) {
887 case OP_GSBYNAME:
888 p0 = va_arg(ap, void *);
889 p1 = va_arg(ap, void *);
890 retptr = getservbyname(p0, p1); break;
891 case OP_GSBYPORT:
892 anint = va_arg(ap, int);
893 p0 = va_arg(ap, void *);
894 retptr = getservbyport(anint, p0); break;
895 case OP_GSERVENT:
896 retptr = getservent(); break;
897 default:
898 break;
899 }
900 }
901 }
902 break;
903#endif
904 default:
905 /* Not known how to retry, so just fail. */
906 break;
907 }
908
909 va_end(ap);
910#endif
911 return retptr;
912}
913
10bc17b6
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914EOF
915
916__DATA__
917asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
b430fd04 918crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*
10bc17b6
JH
919ctermid B |stdio | |B_B
920ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
921drand48 |stdlib |struct drand48_data |I_ST|T=double*
922endgrent |grp | |I_H|V_H
31ee0cb7
JH
923endhostent |netdb | |I_D|V_D|D=struct hostent_data*
924endnetent |netdb | |I_D|V_D|D=struct netent_data*
925endprotoent |netdb | |I_D|V_D|D=struct protoent_data*
10bc17b6 926endpwent |pwd | |I_H|V_H
31ee0cb7 927endservent |netdb | |I_D|V_D|D=struct servent_data*
10bc17b6
JH
928getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
929getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
930getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
931gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|D=struct hostent_data*|T=const void*
932gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
933gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
934getlogin |unistd | |I_BW|I_BI|B_BW|B_BI
935getnetbyaddr LI |netdb |struct netent |I_UISBWRE|I_LISBI|S_TISBI|S_LISBI|I_TISD|I_LISD|I_IISD|D=struct netent_data*|T=in_addr_t|U=unsigned long
936getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
937getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
938getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
939getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data*
940getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data*
941getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
942getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI
943getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t
944getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data*
945getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data*
946getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data*
947getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
948gmtime T |time |struct tm |S_TS|I_TS|T=const time_t*
949localtime T |time |struct tm |S_TS|I_TS|T=const time_t*
950random |stdlib |struct random_data|I_TS|T=int*
951readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
952readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
953setgrent |grp | |I_H|V_H
954sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data*
955setlocale IC |locale | |I_ICBI
956setnetent I |netdb | |I_ID|V_ID|D=struct netent_data*
957setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data*
958setpwent |pwd | |I_H|V_H
959setservent I |netdb | |I_ID|V_ID|D=struct servent_data*
960srand48 L |stdlib |struct drand48_data |I_LS
961srandom T |stdlib |struct random_data|I_TS|T=unsigned int
962strerror I |string | |I_IBW|I_IBI|B_IBW
963tmpnam B |stdio | |B_B
964ttyname I |unistd | |I_IBW|I_IBI|B_IBI