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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:
31ee0cb7 182?MAKE:d_${f}_r ${f}_r_proto: Inlibc Protochk Hasproto i_systypes i_systime $prereqs usethreads
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183?MAKE: -pick add \$@ %<
184?S:d_${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
c18e646a
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216 case "\$d_${f}_r_proto:\$usethreads" in
217 ":define") d_${f}_r_proto=define
a48ec845
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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
edd309b7
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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
10bc17b6
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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
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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
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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 = $g eq 'getgrent' ?
471 '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
472 push @size, <<EOF;
473# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
474 PL_reentrant_buffer->_${g}_size = sysconf($sc);
8695fa85
SR
475 if (PL_reentrant_buffer->_getgrent_size == -1)
476 PL_reentrant_buffer->_getgrent_size = REENTRANTUSUALSIZE;
10bc17b6
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477# else
478# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
479 PL_reentrant_buffer->_${g}_size = SIABUFSIZ;
480# else
481# ifdef __sgi
482 PL_reentrant_buffer->_${g}_size = BUFSIZ;
483# else
8695fa85 484 PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
10bc17b6
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485# endif
486# endif
487# endif
488EOF
489 }
490 pushinitfree $g;
491 pushssif $endif;
492 }
493 elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
494 pushssif $ifdef;
495 my $g = $f;
496 $g =~ s/byname/ent/;
497 my $G = uc $g;
498 my $D = ifprotomatch($F, grep {/D/} @p);
499 my $d = $seend{$f};
31ee0cb7 500 $d =~ s/\*$//; # snip: we need need the base type.
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501 push @struct, <<EOF;
502 $seent{$f} _${g}_struct;
503# if $D
504 $d _${g}_data;
505# else
506 char* _${g}_buffer;
507 size_t _${g}_size;
508# endif
509# ifdef USE_${G}_PTR
510 $seent{$f}* _${g}_ptr;
511# endif
512EOF
513 push @struct, <<EOF;
514# ifdef USE_${G}_ERRNO
515 int _${g}_errno;
516# endif
517EOF
518 push @size, <<EOF;
519#if !($D)
8695fa85 520 PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
10bc17b6
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521#endif
522EOF
523 push @init, <<EOF;
524#if !($D)
525 New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char);
526#endif
527EOF
528 push @free, <<EOF;
529#if !($D)
530 Safefree(PL_reentrant_buffer->_${g}_buffer);
531#endif
532EOF
533 pushssif $endif;
534 }
535 elsif ($f =~ /^(readdir|readdir64)$/) {
536 pushssif $ifdef;
537 my $R = ifprotomatch($F, grep {/R/} @p);
538 push @struct, <<EOF;
539 $seent{$f}* _${f}_struct;
540 size_t _${f}_size;
541# if $R
542 $seent{$f}* _${f}_ptr;
543# endif
544EOF
545 push @size, <<EOF;
546 /* This is the size Solaris recommends.
547 * (though we go static, should use pathconf() instead) */
548 PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1;
549EOF
550 push @init, <<EOF;
551 PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size);
552EOF
553 push @free, <<EOF;
554 Safefree(PL_reentrant_buffer->_${f}_struct);
555EOF
556 pushssif $endif;
557 }
558
559 push @wrap, $ifdef;
560
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561 push @wrap, <<EOF;
562# undef $f
563EOF
564 my @v = 'a'..'z';
565 my $v = join(", ", @v[0..$seenu{$f}-1]);
566 for my $p (@p) {
567 my ($r, $a) = split '_', $p;
568 my $test = $r eq 'I' ? ' == 0' : '';
569 my $true = 1;
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570 my $g = $f;
571 if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
572 $g = "get$1ent";
573 } elsif ($g eq 'srand48') {
574 $g = "drand48";
575 }
576 my $b = $a;
577 my $w = '';
578 substr($b, 0, $seenu{$f}) = '';
579 if ($b =~ /R/) {
580 $true = "PL_reentrant_buffer->_${g}_ptr";
581 } elsif ($b =~ /T/ && $f eq 'drand48') {
582 $true = "PL_reentrant_buffer->_${g}_double";
583 } elsif ($b =~ /S/) {
584 if ($f =~ /^readdir/) {
585 $true = "PL_reentrant_buffer->_${g}_struct";
586 } else {
587 $true = "&PL_reentrant_buffer->_${g}_struct";
588 }
589 } elsif ($b =~ /B/) {
590 $true = "PL_reentrant_buffer->_${g}_buffer";
591 }
592 if (length $b) {
593 $w = join ", ",
594 map {
595 $_ eq 'R' ?
596 "&PL_reentrant_buffer->_${g}_ptr" :
597 $_ eq 'E' ?
598 "&PL_reentrant_buffer->_${g}_errno" :
599 $_ eq 'B' ?
600 "PL_reentrant_buffer->_${g}_buffer" :
601 $_ =~ /^[WI]$/ ?
602 "PL_reentrant_buffer->_${g}_size" :
603 $_ eq 'H' ?
604 "&PL_reentrant_buffer->_${g}_fptr" :
605 $_ eq 'D' ?
606 "&PL_reentrant_buffer->_${g}_data" :
607 $_ eq 'S' ?
608 ($f =~ /^readdir/ ?
609 "PL_reentrant_buffer->_${g}_struct" :
610 "&PL_reentrant_buffer->_${g}_struct" ) :
611 $_ eq 'T' && $f eq 'drand48' ?
612 "&PL_reentrant_buffer->_${g}_double" :
613 $_
614 } split '', $b;
615 $w = ", $w" if length $v;
616 }
617 my $call = "${f}_r($v$w)";
618 $call = "((errno = $call))" if $r eq 'I';
619 push @wrap, <<EOF;
620# if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p
621EOF
622 if ($r eq 'V' || $r eq 'B') {
623 push @wrap, <<EOF;
624# define $f($v) $call
625EOF
626 } else {
edd309b7
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627 if ($f =~ /^get/) {
628 my $rv = $v ? ", $v" : "";
629 push @wrap, <<EOF;
630# define $f($v) ($call$test ? $true : (errno == ERANGE ? Perl_reentrant_retry("$f"$rv) : 0))
10bc17b6 631EOF
edd309b7
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632 } else {
633 push @wrap, <<EOF;
634# define $f($v) ($call$test ? $true : 0)
635EOF
636 }
10bc17b6
JH
637 }
638 push @wrap, <<EOF;
639# endif
640EOF
641 }
642
643 push @wrap, $endif, "\n";
644 }
645}
646
647local $" = '';
648
649print <<EOF;
650
651/* Defines for indicating which special features are supported. */
652
653@define
654typedef struct {
655@struct
656} REENTR;
657
658/* The wrappers. */
659
660@wrap
661#endif /* USE_REENTRANT_API */
662
663#endif
664
665EOF
666
667close(H);
668
669die "reentr.c: $!" unless open(C, ">reentr.c");
670select C;
671print <<EOF;
672/*
673 * reentr.c
674 *
675 * Copyright (c) 1997-2002, Larry Wall
676 *
677 * You may distribute under the terms of either the GNU General Public
678 * License or the Artistic License, as specified in the README file.
679 *
680 * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
681 * This file is built by reentrl.pl from data in reentr.pl.
682 *
683 * "Saruman," I said, standing away from him, "only one hand at a time can
684 * wield the One, and you know that well, so do not trouble to say we!"
685 *
686 */
687
688#include "EXTERN.h"
689#define PERL_IN_REENTR_C
690#include "perl.h"
691#include "reentr.h"
692
693void
694Perl_reentrant_size(pTHX) {
695#ifdef USE_REENTRANT_API
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SR
696#define REENTRANTSMALLSIZE 256 /* Make something up. */
697#define REENTRANTUSUALSIZE 4096 /* Make something up. */
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698@size
699#endif /* USE_REENTRANT_API */
700}
701
702void
703Perl_reentrant_init(pTHX) {
704#ifdef USE_REENTRANT_API
705 New(31337, PL_reentrant_buffer, 1, REENTR);
706 Perl_reentrant_size(aTHX);
707@init
708#endif /* USE_REENTRANT_API */
709}
710
711void
712Perl_reentrant_free(pTHX) {
713#ifdef USE_REENTRANT_API
714@free
715 Safefree(PL_reentrant_buffer);
716#endif /* USE_REENTRANT_API */
717}
718
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JH
719void*
720Perl_reentrant_retry(const char *f, ...)
721{
722 dTHX;
723 void *retptr = NULL;
724#ifdef USE_REENTRANT_API
725 void *p0, *p1;
726 size_t asize;
727 int anint;
728 va_list ap;
729
730 va_start(ap, f);
731
732#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
733
734 switch (PL_op->op_type) {
735#ifdef USE_GETHOSTENT_BUFFER
736 case OP_GHBYADDR:
737 case OP_GHBYNAME:
738 case OP_GHOSTENT:
739 {
740 if (PL_reentrant_buffer->_gethostent_size <= REENTRANTHALFMAXSIZE) {
741 PL_reentrant_buffer->_gethostent_size *= 2;
742 Renew(PL_reentrant_buffer->_gethostent_buffer,
743 PL_reentrant_buffer->_gethostent_size, char);
744 switch (PL_op->op_type) {
745 case OP_GHBYADDR:
746 p0 = va_arg(ap, void *);
747 asize = va_arg(ap, size_t);
748 anint = va_arg(ap, int);
749 retptr = gethostbyaddr(p0, asize, anint); break;
750 case OP_GHBYNAME:
751 p0 = va_arg(ap, void *);
752 retptr = gethostbyname(p0); break;
753 case OP_GHOSTENT:
754 retptr = gethostent(); break;
755 default:
756 break;
757 }
758 }
759 }
760 break;
761#endif
762#ifdef USE_GETGRENT_BUFFER
763 case OP_GGRNAM:
764 case OP_GGRGID:
765 case OP_GGRENT:
766 {
767 if (PL_reentrant_buffer->_getgrent_size <= REENTRANTHALFMAXSIZE) {
768 Gid_t gid;
769 PL_reentrant_buffer->_getgrent_size *= 2;
770 Renew(PL_reentrant_buffer->_getgrent_buffer,
771 PL_reentrant_buffer->_getgrent_size, char);
772 switch (PL_op->op_type) {
773 case OP_GGRNAM:
774 p0 = va_arg(ap, void *);
775 retptr = getgrnam(p0); break;
776 case OP_GGRGID:
777 gid = va_arg(ap, Gid_t);
778 retptr = getgrgid(gid); break;
779 case OP_GGRENT:
780 retptr = getgrent(); break;
781 default:
782 break;
783 }
784 }
785 }
786 break;
787#endif
788#ifdef USE_GETNETENT_BUFFER
789 case OP_GNBYADDR:
790 case OP_GNBYNAME:
791 case OP_GNETENT:
792 {
793 if (PL_reentrant_buffer->_getnetent_size <= REENTRANTHALFMAXSIZE) {
794 Netdb_net_t net;
795 PL_reentrant_buffer->_getnetent_size *= 2;
796 Renew(PL_reentrant_buffer->_getnetent_buffer,
797 PL_reentrant_buffer->_getnetent_size, char);
798 switch (PL_op->op_type) {
799 case OP_GNBYADDR:
800 net = va_arg(ap, Netdb_net_t);
801 anint = va_arg(ap, int);
802 retptr = getnetbyaddr(net, anint); break;
803 case OP_GNBYNAME:
804 p0 = va_arg(ap, void *);
805 retptr = getnetbyname(p0); break;
806 case OP_GNETENT:
807 retptr = getnetent(); break;
808 default:
809 break;
810 }
811 }
812 }
813 break;
814#endif
815#ifdef USE_GETPWENT_BUFFER
816 case OP_GPWNAM:
817 case OP_GPWUID:
818 case OP_GPWENT:
819 {
820 if (PL_reentrant_buffer->_getpwent_size <= REENTRANTHALFMAXSIZE) {
821 Uid_t uid;
822 PL_reentrant_buffer->_getpwent_size *= 2;
823 Renew(PL_reentrant_buffer->_getpwent_buffer,
824 PL_reentrant_buffer->_getpwent_size, char);
825 switch (PL_op->op_type) {
826 case OP_GPWNAM:
827 p0 = va_arg(ap, void *);
828 retptr = getpwnam(p0); break;
829 case OP_GPWUID:
830 uid = va_arg(ap, Uid_t);
831 retptr = getpwuid(uid); break;
832 case OP_GPWENT:
833 retptr = getpwent(); break;
834 default:
835 break;
836 }
837 }
838 }
839 break;
840#endif
841#ifdef USE_GETPROTOENT_BUFFER
842 case OP_GPBYNAME:
843 case OP_GPBYNUMBER:
844 case OP_GPROTOENT:
845 {
846 if (PL_reentrant_buffer->_getprotoent_size <= REENTRANTHALFMAXSIZE) {
847 PL_reentrant_buffer->_getprotoent_size *= 2;
848 Renew(PL_reentrant_buffer->_getprotoent_buffer,
849 PL_reentrant_buffer->_getprotoent_size, char);
850 switch (PL_op->op_type) {
851 case OP_GPBYNAME:
852 p0 = va_arg(ap, void *);
853 retptr = getprotobyname(p0); break;
854 case OP_GPBYNUMBER:
855 anint = va_arg(ap, int);
856 retptr = getprotobynumber(anint); break;
857 case OP_GPROTOENT:
858 retptr = getprotoent(); break;
859 default:
860 break;
861 }
862 }
863 }
864 break;
865#endif
866#ifdef USE_GETSERVENT_BUFFER
867 case OP_GSBYNAME:
868 case OP_GSBYPORT:
869 case OP_GSERVENT:
870 {
871 if (PL_reentrant_buffer->_getservent_size <= REENTRANTHALFMAXSIZE) {
872 PL_reentrant_buffer->_getservent_size *= 2;
873 Renew(PL_reentrant_buffer->_getservent_buffer,
874 PL_reentrant_buffer->_getservent_size, char);
875 switch (PL_op->op_type) {
876 case OP_GSBYNAME:
877 p0 = va_arg(ap, void *);
878 p1 = va_arg(ap, void *);
879 retptr = getservbyname(p0, p1); break;
880 case OP_GSBYPORT:
881 anint = va_arg(ap, int);
882 p0 = va_arg(ap, void *);
883 retptr = getservbyport(anint, p0); break;
884 case OP_GSERVENT:
885 retptr = getservent(); break;
886 default:
887 break;
888 }
889 }
890 }
891 break;
892#endif
893 default:
894 /* Not known how to retry, so just fail. */
895 break;
896 }
897
898 va_end(ap);
899#endif
900 return retptr;
901}
902
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903EOF
904
905__DATA__
906asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
b430fd04 907crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*
10bc17b6
JH
908ctermid B |stdio | |B_B
909ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
910drand48 |stdlib |struct drand48_data |I_ST|T=double*
911endgrent |grp | |I_H|V_H
31ee0cb7
JH
912endhostent |netdb | |I_D|V_D|D=struct hostent_data*
913endnetent |netdb | |I_D|V_D|D=struct netent_data*
914endprotoent |netdb | |I_D|V_D|D=struct protoent_data*
10bc17b6 915endpwent |pwd | |I_H|V_H
31ee0cb7 916endservent |netdb | |I_D|V_D|D=struct servent_data*
10bc17b6
JH
917getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
918getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
919getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
920gethostbyaddr 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*
921gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
922gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
923getlogin |unistd | |I_BW|I_BI|B_BW|B_BI
924getnetbyaddr 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
925getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
926getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
927getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
928getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data*
929getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data*
930getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
931getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI
932getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t
933getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data*
934getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data*
935getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data*
936getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
937gmtime T |time |struct tm |S_TS|I_TS|T=const time_t*
938localtime T |time |struct tm |S_TS|I_TS|T=const time_t*
939random |stdlib |struct random_data|I_TS|T=int*
940readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
941readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
942setgrent |grp | |I_H|V_H
943sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data*
944setlocale IC |locale | |I_ICBI
945setnetent I |netdb | |I_ID|V_ID|D=struct netent_data*
946setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data*
947setpwent |pwd | |I_H|V_H
948setservent I |netdb | |I_ID|V_ID|D=struct servent_data*
949srand48 L |stdlib |struct drand48_data |I_LS
950srandom T |stdlib |struct random_data|I_TS|T=unsigned int
951strerror I |string | |I_IBW|I_IBI|B_IBW
952tmpnam B |stdio | |B_B
953ttyname I |unistd | |I_IBW|I_IBI|B_IBI