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Disable readdir_r and readdir64_r on glibc >= 2.24
[perl5.git] / regen / reentr.pl
CommitLineData
10bc17b6 1#!/usr/bin/perl -w
10bc17b6 2#
6294c161
DM
3# Regenerate (overwriting only if changed):
4#
5# reentr.h
6# reentr.c
7#
8# from information stored in the DATA section of this file.
9#
10# With the -U option, it also unconditionally regenerates the relevant
11# metaconfig units:
12#
13# d_${func}_r.U
14#
15# Also accepts the standard regen_lib -q and -v args.
16#
17# This script is normally invoked from regen.pl.
10bc17b6 18
e06c4d37
NC
19BEGIN {
20 # Get function prototypes
3d7c117d 21 require './regen/regen_lib.pl';
e06c4d37
NC
22}
23
10bc17b6
JH
24use strict;
25use Getopt::Std;
26my %opts;
b6b9a099 27getopts('Uv', \%opts);
10bc17b6
JH
28
29my %map = (
30 V => "void",
31 A => "char*", # as an input argument
32 B => "char*", # as an output argument
33 C => "const char*", # as a read-only input argument
34 I => "int",
35 L => "long",
36 W => "size_t",
37 H => "FILE**",
38 E => "int*",
39 );
40
41# (See the definitions after __DATA__.)
42# In func|inc|type|... a "S" means "type*", and a "R" means "type**".
43# (The "types" are often structs, such as "struct passwd".)
44#
45# After the prototypes one can have |X=...|Y=... to define more types.
46# A commonly used extra type is to define D to be equal to "type_data",
47# for example "struct_hostent_data to" go with "struct hostent".
48#
49# Example #1: I_XSBWR means int func_r(X, type, char*, size_t, type**)
50# Example #2: S_SBIE means type func_r(type, char*, int, int*)
51# Example #3: S_CBI means type func_r(const char*, char*, int)
52
d91994bb
NC
53sub open_print_header {
54 my ($file, $quote) = @_;
55 return open_new($file, '>',
56 { by => 'regen/reentr.pl',
57 from => 'data in regen/reentr.pl',
58 file => $file, style => '*',
59 copyright => [2002, 2003, 2005 .. 2007],
60 quote => $quote });
61}
10bc17b6 62
d91994bb 63my $h = open_print_header('reentr.h');
2d6469fe 64print $h <<EOF;
10bc17b6 65#ifndef REENTR_H
37442d52 66#define REENTR_H
10bc17b6 67
832a833b
JH
68/* If compiling for a threaded perl, we will macro-wrap the system/library
69 * interfaces (e.g. getpwent()) which have threaded versions
70 * (e.g. getpwent_r()), which will handle things correctly for
71 * the Perl interpreter, but otherwise (for XS) the wrapping does
72 * not take place. See L<perlxs/Thread-aware system interfaces>.
73 */
74
75#ifndef PERL_REENTR_API
76# if defined(PERL_CORE) || defined(PERL_EXT)
77# define PERL_REENTR_API 1
78# else
79# define PERL_REENTR_API 0
80# endif
81#endif
82
10bc17b6
JH
83#ifdef USE_REENTRANT_API
84
85/* Deprecations: some platforms have the said reentrant interfaces
86 * but they are declared obsolete and are not to be used. Often this
87 * means that the platform has threadsafed the interfaces (hopefully).
88 * All this is OS version dependent, so we are of course fooling ourselves.
832a833b
JH
89 * If you know of more deprecations on some platforms, please add your own
90 * (by editing reentr.pl, mind!) */
10bc17b6
JH
91
92#ifdef __hpux
93# undef HAS_CRYPT_R
efa45b01
JH
94# undef HAS_ENDGRENT_R
95# undef HAS_ENDPWENT_R
10bc17b6
JH
96# undef HAS_GETGRENT_R
97# undef HAS_GETPWENT_R
98# undef HAS_SETLOCALE_R
10bc17b6
JH
99# undef HAS_STRERROR_R
100# define NETDB_R_OBSOLETE
101#endif
102
103#if defined(__osf__) && defined(__alpha) /* Tru64 aka Digital UNIX */
104# undef HAS_CRYPT_R
105# undef HAS_STRERROR_R
106# define NETDB_R_OBSOLETE
107#endif
108
c6709bf9
MB
109#if defined(__GLIBC__) && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 24))
110# undef HAS_READDIR_R
111# undef HAS_READDIR64_R
112#endif
113
23e2b7a9
SP
114/*
115 * As of OpenBSD 3.7, reentrant functions are now working, they just are
116 * incompatible with everyone else. To make OpenBSD happy, we have to
117 * memzero out certain structures before calling the functions.
118 */
119#if defined(__OpenBSD__)
3fb2f3ac 120# define REENTR_MEMZERO(a,b) memzero(a,b)
23e2b7a9 121#else
3fb2f3ac 122# define REENTR_MEMZERO(a,b) 0
23e2b7a9
SP
123#endif
124
10bc17b6
JH
125#ifdef NETDB_R_OBSOLETE
126# undef HAS_ENDHOSTENT_R
127# undef HAS_ENDNETENT_R
128# undef HAS_ENDPROTOENT_R
129# undef HAS_ENDSERVENT_R
130# undef HAS_GETHOSTBYADDR_R
131# undef HAS_GETHOSTBYNAME_R
132# undef HAS_GETHOSTENT_R
133# undef HAS_GETNETBYADDR_R
134# undef HAS_GETNETBYNAME_R
135# undef HAS_GETNETENT_R
136# undef HAS_GETPROTOBYNAME_R
137# undef HAS_GETPROTOBYNUMBER_R
138# undef HAS_GETPROTOENT_R
139# undef HAS_GETSERVBYNAME_R
140# undef HAS_GETSERVBYPORT_R
141# undef HAS_GETSERVENT_R
142# undef HAS_SETHOSTENT_R
143# undef HAS_SETNETENT_R
144# undef HAS_SETPROTOENT_R
145# undef HAS_SETSERVENT_R
146#endif
147
148#ifdef I_PWD
149# include <pwd.h>
150#endif
151#ifdef I_GRP
152# include <grp.h>
153#endif
154#ifdef I_NETDB
155# include <netdb.h>
156#endif
10bc17b6
JH
157#ifdef I_CRYPT
158# ifdef I_CRYPT
159# include <crypt.h>
160# endif
161#endif
162#ifdef HAS_GETSPNAM_R
163# ifdef I_SHADOW
164# include <shadow.h>
165# endif
166#endif
167
168EOF
169
aa418cf1
JH
170my %seenh; # the different prototypes signatures for this function
171my %seena; # the different prototypes signatures for this function in order
172my @seenf; # all the seen functions
173my %seenp; # the different prototype signatures for all functions
174my %seent; # the return type of this function
175my %seens; # the type of this function's "S"
176my %seend; # the type of this function's "D"
a845a0d4 177my %seenm; # all the types
aa418cf1
JH
178my %seenu; # the length of the argument list of this function
179
b6a6e956 180while (<DATA>) { # Read in the protoypes.
10bc17b6
JH
181 next if /^\s+$/;
182 chomp;
aa418cf1 183 my ($func, $hdr, $type, @p) = split(/\s*\|\s*/, $_, -1);
10bc17b6 184 my $u;
aa418cf1
JH
185 # Split off the real function name and the argument list.
186 ($func, $u) = split(' ', $func);
187 $seenu{$func} = defined $u ? length $u : 0;
188 my $FUNC = uc $func; # for output.
189 push @seenf, $func;
10bc17b6 190 my %m = %map;
aa418cf1
JH
191 if ($type) {
192 $m{S} = "$type*";
193 $m{R} = "$type**";
10bc17b6 194 }
aa418cf1
JH
195
196 # Set any special mapping variables (like X=x_t)
10bc17b6
JH
197 if (@p) {
198 while ($p[-1] =~ /=/) {
199 my ($k, $v) = ($p[-1] =~ /^([A-Za-z])\s*=\s*(.*)/);
200 $m{$k} = $v;
201 pop @p;
202 }
203 }
aa418cf1
JH
204
205 # If given the -U option open up the metaconfig unit for this function.
1ae6ead9 206 if ($opts{U} && open(U, ">", "d_${func}_r.U")) {
0eb6355a 207 binmode U;
10bc17b6 208 }
aa418cf1 209
d63eadf0 210 if ($opts{U}) {
aa418cf1
JH
211 # The metaconfig units needs prerequisite dependencies.
212 my $prereqs = '';
213 my $prereqh = '';
214 my $prereqsh = '';
215 if ($hdr ne 'stdio') { # There's no i_stdio.
216 $prereqs = "i_$hdr";
217 $prereqh = "$hdr.h";
218 $prereqsh = "\$$prereqs $prereqh";
219 }
1fdb6f84
JH
220 my @prereq = qw(Inlibc Protochk Hasproto i_systypes usethreads);
221 push @prereq, $prereqs;
222 my $hdrs = "\$i_systypes sys/types.h define stdio.h $prereqsh";
aa418cf1 223 if ($hdr eq 'time') {
1fdb6f84
JH
224 $hdrs .= " \$i_systime sys/time.h";
225 push @prereq, 'i_systime';
226 }
aa418cf1 227 # Output the metaconfig unit header.
2d6469fe 228 print U <<"EOF";
aa418cf1 229?RCS: \$Id: d_${func}_r.U,v $
10bc17b6 230?RCS:
a845a0d4 231?RCS: Copyright (c) 2002,2003 Jarkko Hietaniemi
10bc17b6
JH
232?RCS:
233?RCS: You may distribute under the terms of either the GNU General Public
234?RCS: License or the Artistic License, as specified in the README file.
235?RCS:
236?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
237?RCS:
aa418cf1 238?MAKE:d_${func}_r ${func}_r_proto: @prereq
10bc17b6 239?MAKE: -pick add \$@ %<
aa418cf1
JH
240?S:d_${func}_r:
241?S: This variable conditionally defines the HAS_${FUNC}_R symbol,
242?S: which indicates to the C program that the ${func}_r()
10bc17b6
JH
243?S: routine is available.
244?S:.
aa418cf1
JH
245?S:${func}_r_proto:
246?S: This variable encodes the prototype of ${func}_r.
39183afa
JH
247?S: It is zero if d_${func}_r is undef, and one of the
248?S: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r
249?S: is defined.
10bc17b6 250?S:.
aa418cf1
JH
251?C:HAS_${FUNC}_R:
252?C: This symbol, if defined, indicates that the ${func}_r routine
253?C: is available to ${func} re-entrantly.
10bc17b6 254?C:.
aa418cf1
JH
255?C:${FUNC}_R_PROTO:
256?C: This symbol encodes the prototype of ${func}_r.
39183afa
JH
257?C: It is zero if d_${func}_r is undef, and one of the
258?C: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r
259?C: is defined.
10bc17b6 260?C:.
aa418cf1
JH
261?H:#\$d_${func}_r HAS_${FUNC}_R /**/
262?H:#define ${FUNC}_R_PROTO \$${func}_r_proto /**/
10bc17b6 263?H:.
aa418cf1
JH
264?T:try hdrs d_${func}_r_proto
265?LINT:set d_${func}_r
266?LINT:set ${func}_r_proto
267: see if ${func}_r exists
268set ${func}_r d_${func}_r
10bc17b6 269eval \$inlibc
aa418cf1 270case "\$d_${func}_r" in
10bc17b6 271"\$define")
d63eadf0 272EOF
2d6469fe 273 print U <<"EOF";
d63eadf0 274 hdrs="$hdrs"
aa418cf1
JH
275 case "\$d_${func}_r_proto:\$usethreads" in
276 ":define") d_${func}_r_proto=define
277 set d_${func}_r_proto ${func}_r \$hdrs
a48ec845
JH
278 eval \$hasproto ;;
279 *) ;;
280 esac
aa418cf1 281 case "\$d_${func}_r_proto" in
a48ec845 282 define)
10bc17b6 283EOF
d63eadf0
JH
284 }
285 for my $p (@p) {
286 my ($r, $a) = ($p =~ /^(.)_(.+)/);
287 my $v = join(", ", map { $m{$_} } split '', $a);
288 if ($opts{U}) {
2d6469fe 289 print U <<"EOF";
aa418cf1
JH
290 case "\$${func}_r_proto" in
291 ''|0) try='$m{$r} ${func}_r($v);'
292 ./protochk "extern \$try" \$hdrs && ${func}_r_proto=$p ;;
10bc17b6
JH
293 esac
294EOF
d63eadf0 295 }
aa418cf1
JH
296 $seenh{$func}->{$p}++;
297 push @{$seena{$func}}, $p;
d63eadf0 298 $seenp{$p}++;
aa418cf1
JH
299 $seent{$func} = $type;
300 $seens{$func} = $m{S};
301 $seend{$func} = $m{D};
a845a0d4 302 $seenm{$func} = \%m;
d63eadf0
JH
303 }
304 if ($opts{U}) {
2d6469fe 305 print U <<"EOF";
aa418cf1
JH
306 case "\$${func}_r_proto" in
307 ''|0) d_${func}_r=undef
308 ${func}_r_proto=0
309 echo "Disabling ${func}_r, cannot determine prototype." >&4 ;;
310 * ) case "\$${func}_r_proto" in
10bc17b6 311 REENTRANT_PROTO*) ;;
aa418cf1 312 *) ${func}_r_proto="REENTRANT_PROTO_\$${func}_r_proto" ;;
10bc17b6
JH
313 esac
314 echo "Prototype: \$try" ;;
315 esac
316 ;;
c18e646a 317 *) case "\$usethreads" in
aa418cf1 318 define) echo "${func}_r has no prototype, not using it." >&4 ;;
c18e646a 319 esac
aa418cf1
JH
320 d_${func}_r=undef
321 ${func}_r_proto=0
c18e646a 322 ;;
a48ec845
JH
323 esac
324 ;;
aa418cf1 325*) ${func}_r_proto=0
10bc17b6
JH
326 ;;
327esac
328
329EOF
330 close(U);
331 }
332}
333
334close DATA;
335
10bc17b6 336{
aa418cf1 337 # Write out all the known prototype signatures.
10bc17b6
JH
338 my $i = 1;
339 for my $p (sort keys %seenp) {
2d6469fe 340 print $h "#define REENTRANT_PROTO_${p} ${i}\n";
10bc17b6
JH
341 $i++;
342 }
343}
344
aa418cf1
JH
345my @struct; # REENTR struct members
346my @size; # struct member buffer size initialization code
347my @init; # struct member buffer initialization (malloc) code
348my @free; # struct member buffer release (free) code
349my @wrap; # the wrapper (foo(a) -> foo_r(a,...)) cpp code
350my @define; # defines for optional features
351
10bc17b6 352sub ifprotomatch {
aa418cf1
JH
353 my $FUNC = shift;
354 join " || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @_;
10bc17b6
JH
355}
356
10bc17b6
JH
357sub pushssif {
358 push @struct, @_;
359 push @size, @_;
360 push @init, @_;
361 push @free, @_;
362}
363
364sub pushinitfree {
aa418cf1 365 my $func = shift;
10bc17b6 366 push @init, <<EOF;
a02a5408 367 Newx(PL_reentrant_buffer->_${func}_buffer, PL_reentrant_buffer->_${func}_size, char);
10bc17b6
JH
368EOF
369 push @free, <<EOF;
aa418cf1 370 Safefree(PL_reentrant_buffer->_${func}_buffer);
10bc17b6
JH
371EOF
372}
373
374sub 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
381EOF
aa418cf1
JH
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 $GENFUNC =~ s/^GET//;
f7937171 391 }
10bc17b6 392 if (@h) {
aa418cf1 393 push @define, "#if defined(HAS_${FUNC}_R) && (" . join(" || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
10bc17b6
JH
394
395 push @define, <<EOF;
aa418cf1 396# define $HAS
10bc17b6 397#else
aa418cf1 398# undef $HAS
10bc17b6
JH
399#endif
400EOF
401 }
402 }
0891a229 403 return if @F == 1;
10bc17b6
JH
404 push @define, <<EOF;
405
406/* Any of the @F using \L$n? */
407
408EOF
409 push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n";
410 push @define, <<EOF;
aa418cf1 411# define USE_${GENFUNC}_$n
10bc17b6 412#else
aa418cf1 413# undef USE_${GENFUNC}_$n
10bc17b6
JH
414#endif
415
416EOF
417}
418
edd309b7
JH
419define('BUFFER', 'B',
420 qw(getgrent getgrgid getgrnam));
421
10bc17b6
JH
422define('PTR', 'R',
423 qw(getgrent getgrgid getgrnam));
424define('PTR', 'R',
425 qw(getpwent getpwnam getpwuid));
426define('PTR', 'R',
427 qw(getspent getspnam));
428
429define('FPTR', 'H',
f7937171 430 qw(getgrent getgrgid getgrnam setgrent endgrent));
10bc17b6 431define('FPTR', 'H',
f7937171 432 qw(getpwent getpwnam getpwuid setpwent endpwent));
10bc17b6 433
edd309b7
JH
434define('BUFFER', 'B',
435 qw(getpwent getpwgid getpwnam));
436
10bc17b6
JH
437define('PTR', 'R',
438 qw(gethostent gethostbyaddr gethostbyname));
439define('PTR', 'R',
440 qw(getnetent getnetbyaddr getnetbyname));
441define('PTR', 'R',
442 qw(getprotoent getprotobyname getprotobynumber));
443define('PTR', 'R',
444 qw(getservent getservbyname getservbyport));
445
edd309b7
JH
446define('BUFFER', 'B',
447 qw(gethostent gethostbyaddr gethostbyname));
448define('BUFFER', 'B',
449 qw(getnetent getnetbyaddr getnetbyname));
450define('BUFFER', 'B',
451 qw(getprotoent getprotobyname getprotobynumber));
452define('BUFFER', 'B',
453 qw(getservent getservbyname getservbyport));
454
10bc17b6
JH
455define('ERRNO', 'E',
456 qw(gethostent gethostbyaddr gethostbyname));
457define('ERRNO', 'E',
458 qw(getnetent getnetbyaddr getnetbyname));
459
aa418cf1
JH
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
468for 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 ($func =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
10bc17b6
JH
475 pushssif $ifdef;
476 push @struct, <<EOF;
aa418cf1
JH
477 char* _${func}_buffer;
478 size_t _${func}_size;
10bc17b6
JH
479EOF
480 push @size, <<EOF;
aa418cf1 481 PL_reentrant_buffer->_${func}_size = REENTRANTSMALLSIZE;
10bc17b6 482EOF
aa418cf1 483 pushinitfree $func;
10bc17b6
JH
484 pushssif $endif;
485 }
aa418cf1 486 elsif ($func =~ /^(crypt)$/) {
10bc17b6
JH
487 pushssif $ifdef;
488 push @struct, <<EOF;
b430fd04 489#if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD
aa418cf1 490 $seend{$func} _${func}_data;
b430fd04 491#else
05404ffe 492 $seent{$func} *_${func}_struct_buffer;
b430fd04 493#endif
10bc17b6 494EOF
b430fd04 495 push @init, <<EOF;
05404ffe
JH
496#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
497 PL_reentrant_buffer->_${func}_struct_buffer = 0;
498#endif
499EOF
500 push @free, <<EOF;
501#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
502 Safefree(PL_reentrant_buffer->_${func}_struct_buffer);
10bc17b6
JH
503#endif
504EOF
b430fd04
JH
505 pushssif $endif;
506 }
aa418cf1 507 elsif ($func =~ /^(getgrnam|getpwnam|getspnam)$/) {
10bc17b6 508 pushssif $ifdef;
aa418cf1
JH
509 # 'genfunc' can be read either as 'generic' or 'genre',
510 # it represents a group of functions.
511 my $genfunc = $func;
512 $genfunc =~ s/nam/ent/g;
513 $genfunc =~ s/^get//;
514 my $GENFUNC = uc $genfunc;
10bc17b6 515 push @struct, <<EOF;
aa418cf1
JH
516 $seent{$func} _${genfunc}_struct;
517 char* _${genfunc}_buffer;
518 size_t _${genfunc}_size;
10bc17b6
JH
519EOF
520 push @struct, <<EOF;
aa418cf1
JH
521# ifdef USE_${GENFUNC}_PTR
522 $seent{$func}* _${genfunc}_ptr;
10bc17b6
JH
523# endif
524EOF
0de8cad8 525 push @struct, <<EOF;
aa418cf1
JH
526# ifdef USE_${GENFUNC}_FPTR
527 FILE* _${genfunc}_fptr;
10bc17b6
JH
528# endif
529EOF
0de8cad8 530 push @init, <<EOF;
aa418cf1
JH
531# ifdef USE_${GENFUNC}_FPTR
532 PL_reentrant_buffer->_${genfunc}_fptr = NULL;
10bc17b6
JH
533# endif
534EOF
0de8cad8 535 my $sc = $genfunc eq 'grent' ?
10bc17b6 536 '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
0de8cad8
RGS
537 my $sz = "_${genfunc}_size";
538 push @size, <<EOF;
10bc17b6 539# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
0de8cad8 540 PL_reentrant_buffer->$sz = sysconf($sc);
832a833b 541 if (PL_reentrant_buffer->$sz == (size_t) -1)
e3410746 542 PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
10bc17b6
JH
543# else
544# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
0de8cad8 545 PL_reentrant_buffer->$sz = SIABUFSIZ;
10bc17b6
JH
546# else
547# ifdef __sgi
0de8cad8 548 PL_reentrant_buffer->$sz = BUFSIZ;
10bc17b6 549# else
0de8cad8 550 PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
10bc17b6
JH
551# endif
552# endif
553# endif
554EOF
aa418cf1 555 pushinitfree $genfunc;
10bc17b6
JH
556 pushssif $endif;
557 }
aa418cf1 558 elsif ($func =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
10bc17b6 559 pushssif $ifdef;
aa418cf1
JH
560 my $genfunc = $func;
561 $genfunc =~ s/byname/ent/;
562 $genfunc =~ s/^get//;
563 my $GENFUNC = uc $genfunc;
564 my $D = ifprotomatch($FUNC, grep {/D/} @p);
565 my $d = $seend{$func};
b6a6e956 566 $d =~ s/\*$//; # snip: we need the base type.
10bc17b6 567 push @struct, <<EOF;
aa418cf1 568 $seent{$func} _${genfunc}_struct;
10bc17b6 569# if $D
aa418cf1 570 $d _${genfunc}_data;
10bc17b6 571# else
aa418cf1
JH
572 char* _${genfunc}_buffer;
573 size_t _${genfunc}_size;
10bc17b6 574# endif
aa418cf1
JH
575# ifdef USE_${GENFUNC}_PTR
576 $seent{$func}* _${genfunc}_ptr;
10bc17b6
JH
577# endif
578EOF
579 push @struct, <<EOF;
aa418cf1
JH
580# ifdef USE_${GENFUNC}_ERRNO
581 int _${genfunc}_errno;
10bc17b6
JH
582# endif
583EOF
584 push @size, <<EOF;
585#if !($D)
aa418cf1 586 PL_reentrant_buffer->_${genfunc}_size = REENTRANTUSUALSIZE;
10bc17b6
JH
587#endif
588EOF
589 push @init, <<EOF;
590#if !($D)
a02a5408 591 Newx(PL_reentrant_buffer->_${genfunc}_buffer, PL_reentrant_buffer->_${genfunc}_size, char);
10bc17b6
JH
592#endif
593EOF
594 push @free, <<EOF;
595#if !($D)
aa418cf1 596 Safefree(PL_reentrant_buffer->_${genfunc}_buffer);
10bc17b6
JH
597#endif
598EOF
599 pushssif $endif;
600 }
aa418cf1 601 elsif ($func =~ /^(readdir|readdir64)$/) {
10bc17b6 602 pushssif $ifdef;
aa418cf1 603 my $R = ifprotomatch($FUNC, grep {/R/} @p);
10bc17b6 604 push @struct, <<EOF;
aa418cf1
JH
605 $seent{$func}* _${func}_struct;
606 size_t _${func}_size;
10bc17b6 607# if $R
aa418cf1 608 $seent{$func}* _${func}_ptr;
10bc17b6
JH
609# endif
610EOF
611 push @size, <<EOF;
612 /* This is the size Solaris recommends.
613 * (though we go static, should use pathconf() instead) */
aa418cf1 614 PL_reentrant_buffer->_${func}_size = sizeof($seent{$func}) + MAXPATHLEN + 1;
10bc17b6
JH
615EOF
616 push @init, <<EOF;
aa418cf1 617 PL_reentrant_buffer->_${func}_struct = ($seent{$func}*)safemalloc(PL_reentrant_buffer->_${func}_size);
10bc17b6
JH
618EOF
619 push @free, <<EOF;
aa418cf1 620 Safefree(PL_reentrant_buffer->_${func}_struct);
10bc17b6
JH
621EOF
622 pushssif $endif;
623 }
624
625 push @wrap, $ifdef;
626
10bc17b6 627 push @wrap, <<EOF;
d896b068 628# if defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1)
aa418cf1 629# undef $func
10bc17b6 630EOF
aa418cf1
JH
631
632 # Write out what we have learned.
633
10bc17b6 634 my @v = 'a'..'z';
aa418cf1 635 my $v = join(", ", @v[0..$seenu{$func}-1]);
10bc17b6
JH
636 for my $p (@p) {
637 my ($r, $a) = split '_', $p;
638 my $test = $r eq 'I' ? ' == 0' : '';
639 my $true = 1;
aa418cf1
JH
640 my $genfunc = $func;
641 if ($genfunc =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
642 $genfunc = "${1}ent";
10bc17b6
JH
643 }
644 my $b = $a;
645 my $w = '';
aa418cf1 646 substr($b, 0, $seenu{$func}) = '';
a7f3e46a 647 if ($b =~ /R/) {
aa418cf1 648 $true = "PL_reentrant_buffer->_${genfunc}_ptr";
10bc17b6 649 } elsif ($b =~ /S/) {
aa418cf1
JH
650 if ($func =~ /^readdir/) {
651 $true = "PL_reentrant_buffer->_${genfunc}_struct";
10bc17b6 652 } else {
aa418cf1 653 $true = "&PL_reentrant_buffer->_${genfunc}_struct";
10bc17b6
JH
654 }
655 } elsif ($b =~ /B/) {
aa418cf1 656 $true = "PL_reentrant_buffer->_${genfunc}_buffer";
10bc17b6
JH
657 }
658 if (length $b) {
659 $w = join ", ",
660 map {
661 $_ eq 'R' ?
aa418cf1 662 "&PL_reentrant_buffer->_${genfunc}_ptr" :
10bc17b6 663 $_ eq 'E' ?
aa418cf1 664 "&PL_reentrant_buffer->_${genfunc}_errno" :
10bc17b6 665 $_ eq 'B' ?
aa418cf1 666 "PL_reentrant_buffer->_${genfunc}_buffer" :
10bc17b6 667 $_ =~ /^[WI]$/ ?
aa418cf1 668 "PL_reentrant_buffer->_${genfunc}_size" :
10bc17b6 669 $_ eq 'H' ?
aa418cf1 670 "&PL_reentrant_buffer->_${genfunc}_fptr" :
10bc17b6 671 $_ eq 'D' ?
aa418cf1 672 "&PL_reentrant_buffer->_${genfunc}_data" :
10bc17b6 673 $_ eq 'S' ?
05404ffe 674 ($func =~ /^readdir\d*$/ ?
aa418cf1 675 "PL_reentrant_buffer->_${genfunc}_struct" :
05404ffe
JH
676 $func =~ /^crypt$/ ?
677 "PL_reentrant_buffer->_${genfunc}_struct_buffer" :
678 "&PL_reentrant_buffer->_${genfunc}_struct") :
10bc17b6
JH
679 $_
680 } split '', $b;
681 $w = ", $w" if length $v;
682 }
832a833b 683
aa418cf1 684 my $call = "${func}_r($v$w)";
23e2b7a9
SP
685
686 # Must make OpenBSD happy
687 my $memzero = '';
688 if($p =~ /D$/ &&
689 ($genfunc eq 'protoent' || $genfunc eq 'servent')) {
3fb2f3ac 690 $memzero = 'REENTR_MEMZERO(&PL_reentrant_buffer->_' . $genfunc . '_data, sizeof(PL_reentrant_buffer->_' . $genfunc . '_data)),';
23e2b7a9 691 }
10bc17b6 692 push @wrap, <<EOF;
aa418cf1 693# if !defined($func) && ${FUNC}_R_PROTO == REENTRANT_PROTO_$p
10bc17b6
JH
694EOF
695 if ($r eq 'V' || $r eq 'B') {
696 push @wrap, <<EOF;
aa418cf1 697# define $func($v) $call
10bc17b6
JH
698EOF
699 } else {
aa418cf1 700 if ($func =~ /^get/) {
edd309b7 701 my $rv = $v ? ", $v" : "";
0891a229
JH
702 if ($r eq 'I') {
703 push @wrap, <<EOF;
b8dcbfa5 704# define $func($v) ($memzero(PL_reentrant_retint = $call)$test ? $true : ((PL_reentrant_retint == ERANGE) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0))
0891a229
JH
705EOF
706 } else {
707 push @wrap, <<EOF;
f6f0b69b 708# define $func($v) ($call$test ? $true : ((errno == ERANGE) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0))
10bc17b6 709EOF
0891a229 710 }
edd309b7
JH
711 } else {
712 push @wrap, <<EOF;
aa418cf1 713# define $func($v) ($call$test ? $true : 0)
edd309b7
JH
714EOF
715 }
10bc17b6 716 }
d4222de0
RGS
717 push @wrap, <<EOF; # !defined(xxx) && XXX_R_PROTO == REENTRANT_PROTO_Y_TS
718# endif
10bc17b6
JH
719EOF
720 }
721
d4222de0
RGS
722 push @wrap, <<EOF; # defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1)
723# endif
832a833b
JH
724EOF
725
10bc17b6
JH
726 push @wrap, $endif, "\n";
727 }
728}
729
730local $" = '';
731
2d6469fe 732print $h <<EOF;
10bc17b6
JH
733
734/* Defines for indicating which special features are supported. */
735
736@define
737typedef struct {
738@struct
aa418cf1 739 int dummy; /* cannot have empty structs */
10bc17b6
JH
740} REENTR;
741
742/* The wrappers. */
743
744@wrap
0891a229 745
10bc17b6
JH
746#endif /* USE_REENTRANT_API */
747
748#endif
10bc17b6
JH
749EOF
750
ce716c52 751read_only_bottom_close_and_rename($h);
10bc17b6 752
aa418cf1
JH
753# Prepare to write the reentr.c.
754
d91994bb 755my $c = open_print_header('reentr.c', <<'EOQ');
23ce015e
JH
756 */
757
758/*
10bc17b6 759 * "Saruman," I said, standing away from him, "only one hand at a time can
56fd1190 760 * wield the One, and you know that well, so do not trouble to say we!"
10bc17b6 761 *
23ce015e
JH
762 * [p.260 of _The Lord of the Rings_, II/ii: "The Council of Elrond"]
763 */
764
765/*
61296642
DM
766 * This file contains a collection of automatically created wrappers
767 * (created by running reentr.pl) for reentrant (thread-safe) versions of
768 * various library calls, such as getpwent_r. The wrapping is done so
769 * that other files like pp_sys.c calling those library functions need not
770 * care about the differences between various platforms' idiosyncrasies
771 * regarding these reentrant interfaces.
10bc17b6 772 */
56fd1190 773EOQ
10bc17b6 774
56fd1190 775print $c <<"EOF";
10bc17b6
JH
776#include "EXTERN.h"
777#define PERL_IN_REENTR_C
778#include "perl.h"
779#include "reentr.h"
780
acfc2cc3
HS
781#define RenewDouble(data_pointer, size_pointer, type) \\
782 STMT_START { \\
783 const size_t size = *(size_pointer) * 2; \\
784 Renew((data_pointer), (size), type); \\
785 *(size_pointer) = size; \\
786 } STMT_END
787
10bc17b6
JH
788void
789Perl_reentrant_size(pTHX) {
23491f1d 790 PERL_UNUSED_CONTEXT;
10bc17b6 791#ifdef USE_REENTRANT_API
8695fa85
SR
792#define REENTRANTSMALLSIZE 256 /* Make something up. */
793#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6
JH
794@size
795#endif /* USE_REENTRANT_API */
796}
797
798void
799Perl_reentrant_init(pTHX) {
23491f1d 800 PERL_UNUSED_CONTEXT;
10bc17b6 801#ifdef USE_REENTRANT_API
a02a5408 802 Newx(PL_reentrant_buffer, 1, REENTR);
10bc17b6
JH
803 Perl_reentrant_size(aTHX);
804@init
805#endif /* USE_REENTRANT_API */
806}
807
808void
809Perl_reentrant_free(pTHX) {
23491f1d 810 PERL_UNUSED_CONTEXT;
10bc17b6
JH
811#ifdef USE_REENTRANT_API
812@free
813 Safefree(PL_reentrant_buffer);
814#endif /* USE_REENTRANT_API */
815}
816
edd309b7
JH
817void*
818Perl_reentrant_retry(const char *f, ...)
819{
edd309b7 820 void *retptr = NULL;
fe5bfecd 821 va_list ap;
7918f24d 822#ifdef USE_REENTRANT_API
dbf7dff6 823 dTHX;
7918f24d
NC
824 /* Easier to special case this here than in embed.pl. (Look at what it
825 generates for proto.h) */
826 PERL_ARGS_ASSERT_REENTRANT_RETRY;
827#endif
fe5bfecd 828 va_start(ap, f);
369ec4b2 829 {
edd309b7 830#ifdef USE_REENTRANT_API
0891a229 831# 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)
e3410746
SR
832 void *p0;
833# endif
f7937171 834# if defined(USE_SERVENT_BUFFER)
e3410746
SR
835 void *p1;
836# endif
f7937171 837# if defined(USE_HOSTENT_BUFFER)
edd309b7 838 size_t asize;
e3410746 839# endif
f7937171 840# if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
edd309b7 841 int anint;
e3410746 842# endif
edd309b7 843
edd309b7 844 switch (PL_op->op_type) {
f7937171 845#ifdef USE_HOSTENT_BUFFER
edd309b7
JH
846 case OP_GHBYADDR:
847 case OP_GHBYNAME:
848 case OP_GHOSTENT:
849 {
af685957
JH
850#ifdef PERL_REENTRANT_MAXSIZE
851 if (PL_reentrant_buffer->_hostent_size <=
852 PERL_REENTRANT_MAXSIZE / 2)
853#endif
854 {
acfc2cc3
HS
855 RenewDouble(PL_reentrant_buffer->_hostent_buffer,
856 &PL_reentrant_buffer->_hostent_size, char);
edd309b7
JH
857 switch (PL_op->op_type) {
858 case OP_GHBYADDR:
859 p0 = va_arg(ap, void *);
860 asize = va_arg(ap, size_t);
861 anint = va_arg(ap, int);
862 retptr = gethostbyaddr(p0, asize, anint); break;
863 case OP_GHBYNAME:
864 p0 = va_arg(ap, void *);
f6f0b69b 865 retptr = gethostbyname((char *)p0); break;
edd309b7
JH
866 case OP_GHOSTENT:
867 retptr = gethostent(); break;
868 default:
0de8cad8 869 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
870 break;
871 }
872 }
873 }
874 break;
875#endif
f7937171 876#ifdef USE_GRENT_BUFFER
edd309b7
JH
877 case OP_GGRNAM:
878 case OP_GGRGID:
879 case OP_GGRENT:
880 {
af685957
JH
881#ifdef PERL_REENTRANT_MAXSIZE
882 if (PL_reentrant_buffer->_grent_size <=
883 PERL_REENTRANT_MAXSIZE / 2)
884#endif
885 {
edd309b7 886 Gid_t gid;
acfc2cc3
HS
887 RenewDouble(PL_reentrant_buffer->_grent_buffer,
888 &PL_reentrant_buffer->_grent_size, char);
edd309b7
JH
889 switch (PL_op->op_type) {
890 case OP_GGRNAM:
891 p0 = va_arg(ap, void *);
f6f0b69b 892 retptr = getgrnam((char *)p0); break;
edd309b7 893 case OP_GGRGID:
ab2b559b
JH
894#if Gid_t_size < INTSIZE
895 gid = (Gid_t)va_arg(ap, int);
896#else
edd309b7 897 gid = va_arg(ap, Gid_t);
ab2b559b 898#endif
edd309b7
JH
899 retptr = getgrgid(gid); break;
900 case OP_GGRENT:
901 retptr = getgrent(); break;
902 default:
0de8cad8 903 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
904 break;
905 }
906 }
907 }
908 break;
909#endif
f7937171 910#ifdef USE_NETENT_BUFFER
edd309b7
JH
911 case OP_GNBYADDR:
912 case OP_GNBYNAME:
913 case OP_GNETENT:
914 {
af685957
JH
915#ifdef PERL_REENTRANT_MAXSIZE
916 if (PL_reentrant_buffer->_netent_size <=
917 PERL_REENTRANT_MAXSIZE / 2)
918#endif
919 {
edd309b7 920 Netdb_net_t net;
acfc2cc3
HS
921 RenewDouble(PL_reentrant_buffer->_netent_buffer,
922 &PL_reentrant_buffer->_netent_size, char);
edd309b7
JH
923 switch (PL_op->op_type) {
924 case OP_GNBYADDR:
925 net = va_arg(ap, Netdb_net_t);
926 anint = va_arg(ap, int);
927 retptr = getnetbyaddr(net, anint); break;
928 case OP_GNBYNAME:
929 p0 = va_arg(ap, void *);
f6f0b69b 930 retptr = getnetbyname((char *)p0); break;
edd309b7
JH
931 case OP_GNETENT:
932 retptr = getnetent(); break;
933 default:
0de8cad8 934 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
935 break;
936 }
937 }
938 }
939 break;
940#endif
f7937171 941#ifdef USE_PWENT_BUFFER
edd309b7
JH
942 case OP_GPWNAM:
943 case OP_GPWUID:
944 case OP_GPWENT:
945 {
af685957
JH
946#ifdef PERL_REENTRANT_MAXSIZE
947 if (PL_reentrant_buffer->_pwent_size <=
948 PERL_REENTRANT_MAXSIZE / 2)
949#endif
950 {
edd309b7 951 Uid_t uid;
acfc2cc3
HS
952 RenewDouble(PL_reentrant_buffer->_pwent_buffer,
953 &PL_reentrant_buffer->_pwent_size, char);
edd309b7
JH
954 switch (PL_op->op_type) {
955 case OP_GPWNAM:
956 p0 = va_arg(ap, void *);
f6f0b69b 957 retptr = getpwnam((char *)p0); break;
edd309b7 958 case OP_GPWUID:
ab2b559b
JH
959#if Uid_t_size < INTSIZE
960 uid = (Uid_t)va_arg(ap, int);
961#else
edd309b7 962 uid = va_arg(ap, Uid_t);
ab2b559b 963#endif
edd309b7 964 retptr = getpwuid(uid); break;
123829cf 965#if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
edd309b7
JH
966 case OP_GPWENT:
967 retptr = getpwent(); break;
123829cf 968#endif
edd309b7 969 default:
0de8cad8 970 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
971 break;
972 }
973 }
974 }
975 break;
976#endif
f7937171 977#ifdef USE_PROTOENT_BUFFER
edd309b7
JH
978 case OP_GPBYNAME:
979 case OP_GPBYNUMBER:
980 case OP_GPROTOENT:
981 {
af685957
JH
982#ifdef PERL_REENTRANT_MAXSIZE
983 if (PL_reentrant_buffer->_protoent_size <=
984 PERL_REENTRANT_MAXSIZE / 2)
985#endif
986 {
acfc2cc3
HS
987 RenewDouble(PL_reentrant_buffer->_protoent_buffer,
988 &PL_reentrant_buffer->_protoent_size, char);
edd309b7
JH
989 switch (PL_op->op_type) {
990 case OP_GPBYNAME:
991 p0 = va_arg(ap, void *);
f6f0b69b 992 retptr = getprotobyname((char *)p0); break;
edd309b7
JH
993 case OP_GPBYNUMBER:
994 anint = va_arg(ap, int);
995 retptr = getprotobynumber(anint); break;
996 case OP_GPROTOENT:
997 retptr = getprotoent(); break;
998 default:
0de8cad8 999 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
1000 break;
1001 }
1002 }
1003 }
1004 break;
1005#endif
f7937171 1006#ifdef USE_SERVENT_BUFFER
edd309b7
JH
1007 case OP_GSBYNAME:
1008 case OP_GSBYPORT:
1009 case OP_GSERVENT:
1010 {
af685957
JH
1011#ifdef PERL_REENTRANT_MAXSIZE
1012 if (PL_reentrant_buffer->_servent_size <=
1013 PERL_REENTRANT_MAXSIZE / 2)
1014#endif
1015 {
acfc2cc3
HS
1016 RenewDouble(PL_reentrant_buffer->_servent_buffer,
1017 &PL_reentrant_buffer->_servent_size, char);
edd309b7
JH
1018 switch (PL_op->op_type) {
1019 case OP_GSBYNAME:
1020 p0 = va_arg(ap, void *);
1021 p1 = va_arg(ap, void *);
f6f0b69b 1022 retptr = getservbyname((char *)p0, (char *)p1); break;
edd309b7
JH
1023 case OP_GSBYPORT:
1024 anint = va_arg(ap, int);
1025 p0 = va_arg(ap, void *);
f6f0b69b 1026 retptr = getservbyport(anint, (char *)p0); break;
edd309b7
JH
1027 case OP_GSERVENT:
1028 retptr = getservent(); break;
1029 default:
0de8cad8 1030 SETERRNO(ERANGE, LIB_INVARG);
edd309b7
JH
1031 break;
1032 }
1033 }
1034 }
1035 break;
1036#endif
1037 default:
1038 /* Not known how to retry, so just fail. */
1039 break;
1040 }
6148ee25
SP
1041#else
1042 PERL_UNUSED_ARG(f);
edd309b7 1043#endif
369ec4b2 1044 }
fe5bfecd 1045 va_end(ap);
edd309b7
JH
1046 return retptr;
1047}
10bc17b6
JH
1048EOF
1049
ce716c52 1050read_only_bottom_close_and_rename($c);
b6b9a099 1051
10bc17b6
JH
1052__DATA__
1053asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
b430fd04 1054crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*
10bc17b6
JH
1055ctermid B |stdio | |B_B
1056ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
10bc17b6 1057endgrent |grp | |I_H|V_H
31ee0cb7
JH
1058endhostent |netdb | |I_D|V_D|D=struct hostent_data*
1059endnetent |netdb | |I_D|V_D|D=struct netent_data*
1060endprotoent |netdb | |I_D|V_D|D=struct protoent_data*
10bc17b6 1061endpwent |pwd | |I_H|V_H
31ee0cb7 1062endservent |netdb | |I_D|V_D|D=struct servent_data*
10bc17b6
JH
1063getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
1064getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
1065getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
a845a0d4 1066gethostbyaddr 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
10bc17b6
JH
1067gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
1068gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
f6f0b69b 1069getlogin |unistd |char |I_BW|I_BI|B_BW|B_BI
a845a0d4 1070getnetbyaddr 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
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1071getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
1072getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
1073getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
1074getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data*
1075getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data*
1076getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
1077getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI
1078getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t
1079getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data*
1080getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data*
1081getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data*
1082getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
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1083readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
1084readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
1085setgrent |grp | |I_H|V_H
1086sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data*
1087setlocale IC |locale | |I_ICBI
1088setnetent I |netdb | |I_ID|V_ID|D=struct netent_data*
1089setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data*
1090setpwent |pwd | |I_H|V_H
1091setservent I |netdb | |I_ID|V_ID|D=struct servent_data*
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1092strerror I |string | |I_IBW|I_IBI|B_IBW
1093tmpnam B |stdio | |B_B
1094ttyname I |unistd | |I_IBW|I_IBI|B_IBI