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[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 }
164 my $prereqh = $h eq 'stdio' ? '' : "i_$h"; # There's no i_stdio.
165 print <<EOF if $opts{U};
166?RCS: \$Id: d_${f}_r.U,v $
167?RCS:
168?RCS: Copyright (c) 2002 Jarkko Hietaniemi
169?RCS:
170?RCS: You may distribute under the terms of either the GNU General Public
171?RCS: License or the Artistic License, as specified in the README file.
172?RCS:
173?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
174?RCS:
c18e646a 175?MAKE:d_${f}_r ${f}_r_proto: Inlibc Protochk Hasproto i_systypes $prereqh usethreads
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176?MAKE: -pick add \$@ %<
177?S:d_${f}_r:
178?S: This variable conditionally defines the HAS_${F}_R symbol,
179?S: which indicates to the C program that the ${f}_r()
180?S: routine is available.
181?S:.
182?S:${f}_r_proto:
183?S: This variable encodes the prototype of ${f}_r.
184?S:.
185?C:HAS_${F}_R:
186?C: This symbol, if defined, indicates that the ${f}_r routine
187?C: is available to ${f} re-entrantly.
188?C:.
189?C:${F}_R_PROTO:
190?C: This symbol encodes the prototype of ${f}_r.
191?C:.
192?H:#\$d_${f}_r HAS_${F}_R /**/
193?H:#define ${F}_R_PROTO \$${f}_r_proto /**/
194?H:.
a48ec845 195?T:try hdrs d_${f}_r_proto
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196?LINT:set d_${f}_r
197?LINT:set ${f}_r_proto
198: see if ${f}_r exists
199set ${f}_r d_${f}_r
200eval \$inlibc
201case "\$d_${f}_r" in
202"\$define")
203 hdrs="\$i_systypes sys/types.h define stdio.h \$i_${h} $h.h"
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204 case "\$d_${f}_r_proto:\$usethreads" in
205 ":define") d_${f}_r_proto=define
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206 set d_${f}_r_proto ${f}_r \$hdrs
207 eval \$hasproto ;;
208 *) ;;
209 esac
210 case "\$d_${f}_r_proto" in
211 define)
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212EOF
213 for my $p (@p) {
214 my ($r, $a) = ($p =~ /^(.)_(.+)/);
215 my $v = join(", ", map { $m{$_} } split '', $a);
216 if ($opts{U}) {
217 print <<EOF ;
218 case "\$${f}_r_proto" in
219 ''|0) try='$m{$r} ${f}_r($v);'
220 ./protochk "extern \$try" \$hdrs && ${f}_r_proto=$p ;;
221 esac
222EOF
223 }
224 $seenh{$f}->{$p}++;
225 push @{$seena{$f}}, $p;
226 $seenp{$p}++;
227 $seent{$f} = $t;
228 $seens{$f} = $m{S};
229 $seend{$f} = $m{D};
230 }
231 if ($opts{U}) {
232 print <<EOF;
233 case "\$${f}_r_proto" in
234 '') d_${f}_r=undef
235 ${f}_r_proto=0
a48ec845 236 echo "Disabling ${f}_r, cannot determine prototype." >&4 ;;
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237 * ) case "\$${f}_r_proto" in
238 REENTRANT_PROTO*) ;;
239 *) ${f}_r_proto="REENTRANT_PROTO_\$${f}_r_proto" ;;
240 esac
241 echo "Prototype: \$try" ;;
242 esac
243 ;;
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244 *) case "\$usethreads" in
245 define) echo "${f}_r has no prototype, not using it." >&4 ;;
246 esac
247 ;;
a48ec845
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248 esac
249 ;;
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250*) ${f}_r_proto=0
251 ;;
252esac
253
254EOF
255 close(U);
256 }
257}
258
259close DATA;
260
261select H;
262
263{
264 my $i = 1;
265 for my $p (sort keys %seenp) {
266 print "#define REENTRANT_PROTO_${p} ${i}\n";
267 $i++;
268 }
269}
270
271sub ifprotomatch {
272 my $F = shift;
273 join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_;
274}
275
276my @struct;
277my @size;
278my @init;
279my @free;
280my @wrap;
281my @define;
282
283sub pushssif {
284 push @struct, @_;
285 push @size, @_;
286 push @init, @_;
287 push @free, @_;
288}
289
290sub pushinitfree {
291 my $f = shift;
292 push @init, <<EOF;
293 New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char);
294EOF
295 push @free, <<EOF;
296 Safefree(PL_reentrant_buffer->_${f}_buffer);
297EOF
298}
299
300sub define {
301 my ($n, $p, @F) = @_;
302 my @H;
303 my $H = uc $F[0];
304 push @define, <<EOF;
305/* The @F using \L$n? */
306
307EOF
308 for my $f (@F) {
309 my $F = uc $f;
310 my $h = "${F}_R_HAS_$n";
311 push @H, $h;
312 my @h = grep { /$p/ } @{$seena{$f}};
313 if (@h) {
09310450 314 push @define, "#if defined(HAS_${F}_R) && (" . join(" || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
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315
316 push @define, <<EOF;
317# define $h
318#else
319# undef $h
320#endif
321EOF
322 }
323 }
324 push @define, <<EOF;
325
326/* Any of the @F using \L$n? */
327
328EOF
329 push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n";
330 push @define, <<EOF;
331# define USE_${H}_$n
332#else
333# undef USE_${H}_$n
334#endif
335
336EOF
337}
338
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339define('BUFFER', 'B',
340 qw(getgrent getgrgid getgrnam));
341
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342define('PTR', 'R',
343 qw(getgrent getgrgid getgrnam));
344define('PTR', 'R',
345 qw(getpwent getpwnam getpwuid));
346define('PTR', 'R',
347 qw(getspent getspnam));
348
349define('FPTR', 'H',
350 qw(getgrent getgrgid getgrnam));
351define('FPTR', 'H',
352 qw(getpwent getpwnam getpwuid));
353
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354define('BUFFER', 'B',
355 qw(getpwent getpwgid getpwnam));
356
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357define('PTR', 'R',
358 qw(gethostent gethostbyaddr gethostbyname));
359define('PTR', 'R',
360 qw(getnetent getnetbyaddr getnetbyname));
361define('PTR', 'R',
362 qw(getprotoent getprotobyname getprotobynumber));
363define('PTR', 'R',
364 qw(getservent getservbyname getservbyport));
365
edd309b7
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366define('BUFFER', 'B',
367 qw(gethostent gethostbyaddr gethostbyname));
368define('BUFFER', 'B',
369 qw(getnetent getnetbyaddr getnetbyname));
370define('BUFFER', 'B',
371 qw(getprotoent getprotobyname getprotobynumber));
372define('BUFFER', 'B',
373 qw(getservent getservbyname getservbyport));
374
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375define('ERRNO', 'E',
376 qw(gethostent gethostbyaddr gethostbyname));
377define('ERRNO', 'E',
378 qw(getnetent getnetbyaddr getnetbyname));
379
380for my $f (@seenf) {
381 my $F = uc $f;
382 my $ifdef = "#ifdef HAS_${F}_R\n";
383 my $endif = "#endif /* HAS_${F}_R */\n";
384 if (exists $seena{$f}) {
385 my @p = @{$seena{$f}};
386 if ($f =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
387 pushssif $ifdef;
388 push @struct, <<EOF;
389 char* _${f}_buffer;
390 size_t _${f}_size;
391EOF
392 push @size, <<EOF;
393 PL_reentrant_buffer->_${f}_size = 256; /* Make something up. */
394EOF
395 pushinitfree $f;
396 pushssif $endif;
397 }
398 elsif ($f =~ /^(crypt|drand48|gmtime|localtime|random)$/) {
399 pushssif $ifdef;
400 push @struct, <<EOF;
401 $seent{$f} _${f}_struct;
402EOF
403 if ($f eq 'crypt') {
404 push @init, <<EOF;
405#ifdef __GLIBC__
406 PL_reentrant_buffer->_${f}_struct.initialized = 0;
407#endif
408EOF
409 }
410 if ($1 eq 'drand48') {
411 push @struct, <<EOF;
412 double _${f}_double;
413EOF
414 }
415 pushssif $endif;
416 }
417 elsif ($f =~ /^(getgrnam|getpwnam|getspnam)$/) {
418 pushssif $ifdef;
419 my $g = $f;
420 $g =~ s/nam/ent/g;
421 my $G = uc $g;
422 push @struct, <<EOF;
423 $seent{$f} _${g}_struct;
424 char* _${g}_buffer;
425 size_t _${g}_size;
426EOF
427 push @struct, <<EOF;
428# ifdef USE_${G}_PTR
429 $seent{$f}* _${g}_ptr;
430# endif
431EOF
432 if ($g eq 'getspent') {
433 push @size, <<EOF;
434 PL_reentrant_buffer->_${g}_size = 1024;
435EOF
436 } else {
437 push @struct, <<EOF;
438# ifdef USE_${G}_FPTR
439 FILE* _${g}_fptr;
440# endif
441EOF
442 push @init, <<EOF;
443# ifdef USE_${G}_FPTR
444 PL_reentrant_buffer->_${g}_fptr = NULL;
445# endif
446EOF
447 my $sc = $g eq 'getgrent' ?
448 '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
449 push @size, <<EOF;
450# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
451 PL_reentrant_buffer->_${g}_size = sysconf($sc);
452# else
453# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
454 PL_reentrant_buffer->_${g}_size = SIABUFSIZ;
455# else
456# ifdef __sgi
457 PL_reentrant_buffer->_${g}_size = BUFSIZ;
458# else
edd309b7 459 PL_reentrant_buffer->_${g}_size = 256;
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460# endif
461# endif
462# endif
463EOF
464 }
465 pushinitfree $g;
466 pushssif $endif;
467 }
468 elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
469 pushssif $ifdef;
470 my $g = $f;
471 $g =~ s/byname/ent/;
472 my $G = uc $g;
473 my $D = ifprotomatch($F, grep {/D/} @p);
474 my $d = $seend{$f};
475 push @struct, <<EOF;
476 $seent{$f} _${g}_struct;
477# if $D
478 $d _${g}_data;
479# else
480 char* _${g}_buffer;
481 size_t _${g}_size;
482# endif
483# ifdef USE_${G}_PTR
484 $seent{$f}* _${g}_ptr;
485# endif
486EOF
487 push @struct, <<EOF;
488# ifdef USE_${G}_ERRNO
489 int _${g}_errno;
490# endif
491EOF
492 push @size, <<EOF;
493#if !($D)
494 PL_reentrant_buffer->_${g}_size = 2048; /* Any better ideas? */
495#endif
496EOF
497 push @init, <<EOF;
498#if !($D)
499 New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char);
500#endif
501EOF
502 push @free, <<EOF;
503#if !($D)
504 Safefree(PL_reentrant_buffer->_${g}_buffer);
505#endif
506EOF
507 pushssif $endif;
508 }
509 elsif ($f =~ /^(readdir|readdir64)$/) {
510 pushssif $ifdef;
511 my $R = ifprotomatch($F, grep {/R/} @p);
512 push @struct, <<EOF;
513 $seent{$f}* _${f}_struct;
514 size_t _${f}_size;
515# if $R
516 $seent{$f}* _${f}_ptr;
517# endif
518EOF
519 push @size, <<EOF;
520 /* This is the size Solaris recommends.
521 * (though we go static, should use pathconf() instead) */
522 PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1;
523EOF
524 push @init, <<EOF;
525 PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size);
526EOF
527 push @free, <<EOF;
528 Safefree(PL_reentrant_buffer->_${f}_struct);
529EOF
530 pushssif $endif;
531 }
532
533 push @wrap, $ifdef;
534
535# Doesn't implement the buffer growth loop for glibc gethostby*().
536 push @wrap, <<EOF;
537# undef $f
538EOF
539 my @v = 'a'..'z';
540 my $v = join(", ", @v[0..$seenu{$f}-1]);
541 for my $p (@p) {
542 my ($r, $a) = split '_', $p;
543 my $test = $r eq 'I' ? ' == 0' : '';
544 my $true = 1;
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545 my $g = $f;
546 if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
547 $g = "get$1ent";
548 } elsif ($g eq 'srand48') {
549 $g = "drand48";
550 }
551 my $b = $a;
552 my $w = '';
553 substr($b, 0, $seenu{$f}) = '';
554 if ($b =~ /R/) {
555 $true = "PL_reentrant_buffer->_${g}_ptr";
556 } elsif ($b =~ /T/ && $f eq 'drand48') {
557 $true = "PL_reentrant_buffer->_${g}_double";
558 } elsif ($b =~ /S/) {
559 if ($f =~ /^readdir/) {
560 $true = "PL_reentrant_buffer->_${g}_struct";
561 } else {
562 $true = "&PL_reentrant_buffer->_${g}_struct";
563 }
564 } elsif ($b =~ /B/) {
565 $true = "PL_reentrant_buffer->_${g}_buffer";
566 }
567 if (length $b) {
568 $w = join ", ",
569 map {
570 $_ eq 'R' ?
571 "&PL_reentrant_buffer->_${g}_ptr" :
572 $_ eq 'E' ?
573 "&PL_reentrant_buffer->_${g}_errno" :
574 $_ eq 'B' ?
575 "PL_reentrant_buffer->_${g}_buffer" :
576 $_ =~ /^[WI]$/ ?
577 "PL_reentrant_buffer->_${g}_size" :
578 $_ eq 'H' ?
579 "&PL_reentrant_buffer->_${g}_fptr" :
580 $_ eq 'D' ?
581 "&PL_reentrant_buffer->_${g}_data" :
582 $_ eq 'S' ?
583 ($f =~ /^readdir/ ?
584 "PL_reentrant_buffer->_${g}_struct" :
585 "&PL_reentrant_buffer->_${g}_struct" ) :
586 $_ eq 'T' && $f eq 'drand48' ?
587 "&PL_reentrant_buffer->_${g}_double" :
588 $_
589 } split '', $b;
590 $w = ", $w" if length $v;
591 }
592 my $call = "${f}_r($v$w)";
593 $call = "((errno = $call))" if $r eq 'I';
594 push @wrap, <<EOF;
595# if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p
596EOF
597 if ($r eq 'V' || $r eq 'B') {
598 push @wrap, <<EOF;
599# define $f($v) $call
600EOF
601 } else {
edd309b7
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602 if ($f =~ /^get/) {
603 my $rv = $v ? ", $v" : "";
604 push @wrap, <<EOF;
605# define $f($v) ($call$test ? $true : (errno == ERANGE ? Perl_reentrant_retry("$f"$rv) : 0))
10bc17b6 606EOF
edd309b7
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607 } else {
608 push @wrap, <<EOF;
609# define $f($v) ($call$test ? $true : 0)
610EOF
611 }
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612 }
613 push @wrap, <<EOF;
614# endif
615EOF
616 }
617
618 push @wrap, $endif, "\n";
619 }
620}
621
622local $" = '';
623
624print <<EOF;
625
626/* Defines for indicating which special features are supported. */
627
628@define
629typedef struct {
630@struct
631} REENTR;
632
633/* The wrappers. */
634
635@wrap
636#endif /* USE_REENTRANT_API */
637
638#endif
639
640EOF
641
642close(H);
643
644die "reentr.c: $!" unless open(C, ">reentr.c");
645select C;
646print <<EOF;
647/*
648 * reentr.c
649 *
650 * Copyright (c) 1997-2002, Larry Wall
651 *
652 * You may distribute under the terms of either the GNU General Public
653 * License or the Artistic License, as specified in the README file.
654 *
655 * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
656 * This file is built by reentrl.pl from data in reentr.pl.
657 *
658 * "Saruman," I said, standing away from him, "only one hand at a time can
659 * wield the One, and you know that well, so do not trouble to say we!"
660 *
661 */
662
663#include "EXTERN.h"
664#define PERL_IN_REENTR_C
665#include "perl.h"
666#include "reentr.h"
667
668void
669Perl_reentrant_size(pTHX) {
670#ifdef USE_REENTRANT_API
671@size
672#endif /* USE_REENTRANT_API */
673}
674
675void
676Perl_reentrant_init(pTHX) {
677#ifdef USE_REENTRANT_API
678 New(31337, PL_reentrant_buffer, 1, REENTR);
679 Perl_reentrant_size(aTHX);
680@init
681#endif /* USE_REENTRANT_API */
682}
683
684void
685Perl_reentrant_free(pTHX) {
686#ifdef USE_REENTRANT_API
687@free
688 Safefree(PL_reentrant_buffer);
689#endif /* USE_REENTRANT_API */
690}
691
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692void*
693Perl_reentrant_retry(const char *f, ...)
694{
695 dTHX;
696 void *retptr = NULL;
697#ifdef USE_REENTRANT_API
698 void *p0, *p1;
699 size_t asize;
700 int anint;
701 va_list ap;
702
703 va_start(ap, f);
704
705#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
706
707 switch (PL_op->op_type) {
708#ifdef USE_GETHOSTENT_BUFFER
709 case OP_GHBYADDR:
710 case OP_GHBYNAME:
711 case OP_GHOSTENT:
712 {
713 if (PL_reentrant_buffer->_gethostent_size <= REENTRANTHALFMAXSIZE) {
714 PL_reentrant_buffer->_gethostent_size *= 2;
715 Renew(PL_reentrant_buffer->_gethostent_buffer,
716 PL_reentrant_buffer->_gethostent_size, char);
717 switch (PL_op->op_type) {
718 case OP_GHBYADDR:
719 p0 = va_arg(ap, void *);
720 asize = va_arg(ap, size_t);
721 anint = va_arg(ap, int);
722 retptr = gethostbyaddr(p0, asize, anint); break;
723 case OP_GHBYNAME:
724 p0 = va_arg(ap, void *);
725 retptr = gethostbyname(p0); break;
726 case OP_GHOSTENT:
727 retptr = gethostent(); break;
728 default:
729 break;
730 }
731 }
732 }
733 break;
734#endif
735#ifdef USE_GETGRENT_BUFFER
736 case OP_GGRNAM:
737 case OP_GGRGID:
738 case OP_GGRENT:
739 {
740 if (PL_reentrant_buffer->_getgrent_size <= REENTRANTHALFMAXSIZE) {
741 Gid_t gid;
742 PL_reentrant_buffer->_getgrent_size *= 2;
743 Renew(PL_reentrant_buffer->_getgrent_buffer,
744 PL_reentrant_buffer->_getgrent_size, char);
745 switch (PL_op->op_type) {
746 case OP_GGRNAM:
747 p0 = va_arg(ap, void *);
748 retptr = getgrnam(p0); break;
749 case OP_GGRGID:
750 gid = va_arg(ap, Gid_t);
751 retptr = getgrgid(gid); break;
752 case OP_GGRENT:
753 retptr = getgrent(); break;
754 default:
755 break;
756 }
757 }
758 }
759 break;
760#endif
761#ifdef USE_GETNETENT_BUFFER
762 case OP_GNBYADDR:
763 case OP_GNBYNAME:
764 case OP_GNETENT:
765 {
766 if (PL_reentrant_buffer->_getnetent_size <= REENTRANTHALFMAXSIZE) {
767 Netdb_net_t net;
768 PL_reentrant_buffer->_getnetent_size *= 2;
769 Renew(PL_reentrant_buffer->_getnetent_buffer,
770 PL_reentrant_buffer->_getnetent_size, char);
771 switch (PL_op->op_type) {
772 case OP_GNBYADDR:
773 net = va_arg(ap, Netdb_net_t);
774 anint = va_arg(ap, int);
775 retptr = getnetbyaddr(net, anint); break;
776 case OP_GNBYNAME:
777 p0 = va_arg(ap, void *);
778 retptr = getnetbyname(p0); break;
779 case OP_GNETENT:
780 retptr = getnetent(); break;
781 default:
782 break;
783 }
784 }
785 }
786 break;
787#endif
788#ifdef USE_GETPWENT_BUFFER
789 case OP_GPWNAM:
790 case OP_GPWUID:
791 case OP_GPWENT:
792 {
793 if (PL_reentrant_buffer->_getpwent_size <= REENTRANTHALFMAXSIZE) {
794 Uid_t uid;
795 PL_reentrant_buffer->_getpwent_size *= 2;
796 Renew(PL_reentrant_buffer->_getpwent_buffer,
797 PL_reentrant_buffer->_getpwent_size, char);
798 switch (PL_op->op_type) {
799 case OP_GPWNAM:
800 p0 = va_arg(ap, void *);
801 retptr = getpwnam(p0); break;
802 case OP_GPWUID:
803 uid = va_arg(ap, Uid_t);
804 retptr = getpwuid(uid); break;
805 case OP_GPWENT:
806 retptr = getpwent(); break;
807 default:
808 break;
809 }
810 }
811 }
812 break;
813#endif
814#ifdef USE_GETPROTOENT_BUFFER
815 case OP_GPBYNAME:
816 case OP_GPBYNUMBER:
817 case OP_GPROTOENT:
818 {
819 if (PL_reentrant_buffer->_getprotoent_size <= REENTRANTHALFMAXSIZE) {
820 PL_reentrant_buffer->_getprotoent_size *= 2;
821 Renew(PL_reentrant_buffer->_getprotoent_buffer,
822 PL_reentrant_buffer->_getprotoent_size, char);
823 switch (PL_op->op_type) {
824 case OP_GPBYNAME:
825 p0 = va_arg(ap, void *);
826 retptr = getprotobyname(p0); break;
827 case OP_GPBYNUMBER:
828 anint = va_arg(ap, int);
829 retptr = getprotobynumber(anint); break;
830 case OP_GPROTOENT:
831 retptr = getprotoent(); break;
832 default:
833 break;
834 }
835 }
836 }
837 break;
838#endif
839#ifdef USE_GETSERVENT_BUFFER
840 case OP_GSBYNAME:
841 case OP_GSBYPORT:
842 case OP_GSERVENT:
843 {
844 if (PL_reentrant_buffer->_getservent_size <= REENTRANTHALFMAXSIZE) {
845 PL_reentrant_buffer->_getservent_size *= 2;
846 Renew(PL_reentrant_buffer->_getservent_buffer,
847 PL_reentrant_buffer->_getservent_size, char);
848 switch (PL_op->op_type) {
849 case OP_GSBYNAME:
850 p0 = va_arg(ap, void *);
851 p1 = va_arg(ap, void *);
852 retptr = getservbyname(p0, p1); break;
853 case OP_GSBYPORT:
854 anint = va_arg(ap, int);
855 p0 = va_arg(ap, void *);
856 retptr = getservbyport(anint, p0); break;
857 case OP_GSERVENT:
858 retptr = getservent(); break;
859 default:
860 break;
861 }
862 }
863 }
864 break;
865#endif
866 default:
867 /* Not known how to retry, so just fail. */
868 break;
869 }
870
871 va_end(ap);
872#endif
873 return retptr;
874}
875
10bc17b6
JH
876EOF
877
878__DATA__
879asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
880crypt CC |crypt |struct crypt_data|B_CCS
881ctermid B |stdio | |B_B
882ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
883drand48 |stdlib |struct drand48_data |I_ST|T=double*
884endgrent |grp | |I_H|V_H
885endhostent |netdb |struct hostent_data |I_S|V_S
886endnetent |netdb |struct netent_data |I_S|V_S
887endprotoent |netdb |struct protoent_data |I_S|V_S
888endpwent |pwd | |I_H|V_H
889endservent |netdb |struct servent_data |I_S|V_S
890getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
891getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
892getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
893gethostbyaddr 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*
894gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
895gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
896getlogin |unistd | |I_BW|I_BI|B_BW|B_BI
897getnetbyaddr 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
898getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
899getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
900getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
901getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data*
902getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data*
903getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
904getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI
905getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t
906getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data*
907getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data*
908getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data*
909getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
910gmtime T |time |struct tm |S_TS|I_TS|T=const time_t*
911localtime T |time |struct tm |S_TS|I_TS|T=const time_t*
912random |stdlib |struct random_data|I_TS|T=int*
913readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
914readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
915setgrent |grp | |I_H|V_H
916sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data*
917setlocale IC |locale | |I_ICBI
918setnetent I |netdb | |I_ID|V_ID|D=struct netent_data*
919setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data*
920setpwent |pwd | |I_H|V_H
921setservent I |netdb | |I_ID|V_ID|D=struct servent_data*
922srand48 L |stdlib |struct drand48_data |I_LS
923srandom T |stdlib |struct random_data|I_TS|T=unsigned int
924strerror I |string | |I_IBW|I_IBI|B_IBW
925tmpnam B |stdio | |B_B
926ttyname I |unistd | |I_IBW|I_IBI|B_IBI