Commit | Line | Data |
10bc17b6 |
1 | #!/usr/bin/perl -w |
2 | |
3 | # |
4 | # Generate the reentr.c and reentr.h, |
5 | # and optionally also the relevant metaconfig units (-U option). |
6 | # |
7 | |
8 | use strict; |
9 | use Getopt::Std; |
10 | my %opts; |
11 | getopts('U', \%opts); |
12 | |
13 | my %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 | |
38 | die "reentr.h: $!" unless open(H, ">reentr.h"); |
39 | select H; |
40 | print <<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 |
efa45b01 |
67 | # undef HAS_ENDGRENT_R |
68 | # undef HAS_ENDPWENT_R |
10bc17b6 |
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 | |
129 | EOF |
130 | |
131 | my %seenh; |
132 | my %seena; |
133 | my @seenf; |
134 | my %seenp; |
135 | my %seent; |
136 | my %seens; |
137 | my %seend; |
138 | my %seenu; |
139 | |
140 | while (<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 |
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 | } |
10bc17b6 |
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 $prereqs usethreads |
10bc17b6 |
183 | ?MAKE: -pick add \$@ %< |
184 | ?S:d_${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_${f}_r_proto |
10bc17b6 |
203 | ?LINT:set d_${f}_r |
204 | ?LINT:set ${f}_r_proto |
205 | : see if ${f}_r exists |
206 | set ${f}_r d_${f}_r |
207 | eval \$inlibc |
208 | case "\$d_${f}_r" in |
209 | "\$define") |
31ee0cb7 |
210 | hdrs="\$i_systypes sys/types.h define stdio.h $prereqsh" |
90e831dc |
211 | case "$h" in |
212 | time) |
213 | hdrs="\$hdrs \$i_systime sys/time.h" |
214 | ;; |
215 | esac |
c18e646a |
216 | case "\$d_${f}_r_proto:\$usethreads" in |
217 | ":define") d_${f}_r_proto=define |
a48ec845 |
218 | set d_${f}_r_proto ${f}_r \$hdrs |
219 | eval \$hasproto ;; |
220 | *) ;; |
221 | esac |
222 | case "\$d_${f}_r_proto" in |
223 | define) |
10bc17b6 |
224 | EOF |
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 |
234 | EOF |
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 ${f}_r, cannot determine prototype." >&4 ;; |
10bc17b6 |
249 | * ) case "\$${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 |
256 | *) case "\$usethreads" in |
257 | define) echo "${f}_r has no prototype, not using it." >&4 ;; |
258 | esac |
90e831dc |
259 | d_${f}_r=undef |
260 | ${f}_r_proto=0 |
c18e646a |
261 | ;; |
a48ec845 |
262 | esac |
263 | ;; |
10bc17b6 |
264 | *) ${f}_r_proto=0 |
265 | ;; |
266 | esac |
267 | |
268 | EOF |
269 | close(U); |
270 | } |
271 | } |
272 | |
273 | close DATA; |
274 | |
275 | select 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 | |
285 | sub ifprotomatch { |
286 | my $F = shift; |
287 | join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_; |
288 | } |
289 | |
290 | my @struct; |
291 | my @size; |
292 | my @init; |
293 | my @free; |
294 | my @wrap; |
295 | my @define; |
296 | |
297 | sub pushssif { |
298 | push @struct, @_; |
299 | push @size, @_; |
300 | push @init, @_; |
301 | push @free, @_; |
302 | } |
303 | |
304 | sub pushinitfree { |
305 | my $f = shift; |
306 | push @init, <<EOF; |
307 | New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char); |
308 | EOF |
309 | push @free, <<EOF; |
310 | Safefree(PL_reentrant_buffer->_${f}_buffer); |
311 | EOF |
312 | } |
313 | |
314 | sub 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 | |
321 | EOF |
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"; |
10bc17b6 |
329 | |
330 | push @define, <<EOF; |
331 | # define $h |
332 | #else |
333 | # undef $h |
334 | #endif |
335 | EOF |
336 | } |
337 | } |
338 | push @define, <<EOF; |
339 | |
340 | /* Any of the @F using \L$n? */ |
341 | |
342 | EOF |
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 | |
350 | EOF |
351 | } |
352 | |
edd309b7 |
353 | define('BUFFER', 'B', |
354 | qw(getgrent getgrgid getgrnam)); |
355 | |
10bc17b6 |
356 | define('PTR', 'R', |
357 | qw(getgrent getgrgid getgrnam)); |
358 | define('PTR', 'R', |
359 | qw(getpwent getpwnam getpwuid)); |
360 | define('PTR', 'R', |
361 | qw(getspent getspnam)); |
362 | |
363 | define('FPTR', 'H', |
364 | qw(getgrent getgrgid getgrnam)); |
365 | define('FPTR', 'H', |
366 | qw(getpwent getpwnam getpwuid)); |
367 | |
edd309b7 |
368 | define('BUFFER', 'B', |
369 | qw(getpwent getpwgid getpwnam)); |
370 | |
10bc17b6 |
371 | define('PTR', 'R', |
372 | qw(gethostent gethostbyaddr gethostbyname)); |
373 | define('PTR', 'R', |
374 | qw(getnetent getnetbyaddr getnetbyname)); |
375 | define('PTR', 'R', |
376 | qw(getprotoent getprotobyname getprotobynumber)); |
377 | define('PTR', 'R', |
378 | qw(getservent getservbyname getservbyport)); |
379 | |
edd309b7 |
380 | define('BUFFER', 'B', |
381 | qw(gethostent gethostbyaddr gethostbyname)); |
382 | define('BUFFER', 'B', |
383 | qw(getnetent getnetbyaddr getnetbyname)); |
384 | define('BUFFER', 'B', |
385 | qw(getprotoent getprotobyname getprotobynumber)); |
386 | define('BUFFER', 'B', |
387 | qw(getservent getservbyname getservbyport)); |
388 | |
10bc17b6 |
389 | define('ERRNO', 'E', |
390 | qw(gethostent gethostbyaddr gethostbyname)); |
391 | define('ERRNO', 'E', |
392 | qw(getnetent getnetbyaddr getnetbyname)); |
393 | |
394 | for 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 _${f}_size; |
405 | EOF |
406 | push @size, <<EOF; |
8695fa85 |
407 | PL_reentrant_buffer->_${f}_size = REENTRANTSMALLSIZE; |
10bc17b6 |
408 | EOF |
409 | pushinitfree $f; |
410 | pushssif $endif; |
411 | } |
b430fd04 |
412 | elsif ($f =~ /^(crypt)$/) { |
10bc17b6 |
413 | pushssif $ifdef; |
414 | push @struct, <<EOF; |
b430fd04 |
415 | #if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD |
416 | $seend{$f} _${f}_data; |
417 | #else |
10bc17b6 |
418 | $seent{$f} _${f}_struct; |
b430fd04 |
419 | #endif |
10bc17b6 |
420 | EOF |
b430fd04 |
421 | push @init, <<EOF; |
10bc17b6 |
422 | #ifdef __GLIBC__ |
423 | PL_reentrant_buffer->_${f}_struct.initialized = 0; |
424 | #endif |
425 | EOF |
b430fd04 |
426 | pushssif $endif; |
427 | } |
428 | elsif ($f =~ /^(drand48|gmtime|localtime|random)$/) { |
429 | pushssif $ifdef; |
430 | push @struct, <<EOF; |
431 | $seent{$f} _${f}_struct; |
432 | EOF |
10bc17b6 |
433 | if ($1 eq 'drand48') { |
434 | push @struct, <<EOF; |
435 | double _${f}_double; |
436 | EOF |
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 _${g}_size; |
449 | EOF |
450 | push @struct, <<EOF; |
451 | # ifdef USE_${G}_PTR |
452 | $seent{$f}* _${g}_ptr; |
453 | # endif |
454 | EOF |
455 | if ($g eq 'getspent') { |
456 | push @size, <<EOF; |
457 | PL_reentrant_buffer->_${g}_size = 1024; |
458 | EOF |
459 | } else { |
460 | push @struct, <<EOF; |
461 | # ifdef USE_${G}_FPTR |
462 | FILE* _${g}_fptr; |
463 | # endif |
464 | EOF |
465 | push @init, <<EOF; |
466 | # ifdef USE_${G}_FPTR |
467 | PL_reentrant_buffer->_${g}_fptr = NULL; |
468 | # endif |
469 | EOF |
470 | my $sc = $g eq 'getgrent' ? |
471 | '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX'; |
e3410746 |
472 | my $sz = $g eq 'getgrent' ? |
473 | '_getgrent_size' : '_getpwent_size'; |
10bc17b6 |
474 | push @size, <<EOF; |
475 | # if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__) |
476 | PL_reentrant_buffer->_${g}_size = sysconf($sc); |
e3410746 |
477 | if (PL_reentrant_buffer->$sz == -1) |
478 | PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE; |
10bc17b6 |
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 |
487 | # endif |
488 | # endif |
489 | # endif |
490 | EOF |
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. |
10bc17b6 |
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}* _${g}_ptr; |
513 | # endif |
514 | EOF |
515 | push @struct, <<EOF; |
516 | # ifdef USE_${G}_ERRNO |
517 | int _${g}_errno; |
518 | # endif |
519 | EOF |
520 | push @size, <<EOF; |
521 | #if !($D) |
8695fa85 |
522 | PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE; |
10bc17b6 |
523 | #endif |
524 | EOF |
525 | push @init, <<EOF; |
526 | #if !($D) |
527 | New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char); |
528 | #endif |
529 | EOF |
530 | push @free, <<EOF; |
531 | #if !($D) |
532 | Safefree(PL_reentrant_buffer->_${g}_buffer); |
533 | #endif |
534 | EOF |
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}* _${f}_ptr; |
545 | # endif |
546 | EOF |
547 | push @size, <<EOF; |
548 | /* This is the size Solaris recommends. |
549 | * (though we go static, should use pathconf() instead) */ |
550 | PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1; |
551 | EOF |
552 | push @init, <<EOF; |
553 | PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size); |
554 | EOF |
555 | push @free, <<EOF; |
556 | Safefree(PL_reentrant_buffer->_${f}_struct); |
557 | EOF |
558 | pushssif $endif; |
559 | } |
560 | |
561 | push @wrap, $ifdef; |
562 | |
10bc17b6 |
563 | push @wrap, <<EOF; |
564 | # undef $f |
565 | EOF |
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; |
10bc17b6 |
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 |
623 | EOF |
624 | if ($r eq 'V' || $r eq 'B') { |
625 | push @wrap, <<EOF; |
626 | # define $f($v) $call |
627 | EOF |
628 | } else { |
edd309b7 |
629 | if ($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 |
633 | EOF |
edd309b7 |
634 | } else { |
635 | push @wrap, <<EOF; |
636 | # define $f($v) ($call$test ? $true : 0) |
637 | EOF |
638 | } |
10bc17b6 |
639 | } |
640 | push @wrap, <<EOF; |
641 | # endif |
642 | EOF |
643 | } |
644 | |
645 | push @wrap, $endif, "\n"; |
646 | } |
647 | } |
648 | |
649 | local $" = ''; |
650 | |
651 | print <<EOF; |
652 | |
653 | /* Defines for indicating which special features are supported. */ |
654 | |
655 | @define |
656 | typedef struct { |
657 | @struct |
658 | } REENTR; |
659 | |
660 | /* The wrappers. */ |
661 | |
662 | @wrap |
663 | #endif /* USE_REENTRANT_API */ |
664 | |
665 | #endif |
666 | |
667 | EOF |
668 | |
669 | close(H); |
670 | |
671 | die "reentr.c: $!" unless open(C, ">reentr.c"); |
672 | select C; |
673 | print <<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 | |
695 | void |
696 | Perl_reentrant_size(pTHX) { |
697 | #ifdef USE_REENTRANT_API |
8695fa85 |
698 | #define REENTRANTSMALLSIZE 256 /* Make something up. */ |
699 | #define REENTRANTUSUALSIZE 4096 /* Make something up. */ |
10bc17b6 |
700 | @size |
701 | #endif /* USE_REENTRANT_API */ |
702 | } |
703 | |
704 | void |
705 | Perl_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 | |
713 | void |
714 | Perl_reentrant_free(pTHX) { |
715 | #ifdef USE_REENTRANT_API |
716 | @free |
717 | Safefree(PL_reentrant_buffer); |
718 | #endif /* USE_REENTRANT_API */ |
719 | } |
720 | |
edd309b7 |
721 | void* |
722 | Perl_reentrant_retry(const char *f, ...) |
723 | { |
724 | dTHX; |
725 | void *retptr = NULL; |
726 | #ifdef USE_REENTRANT_API |
e3410746 |
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 |
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 |
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 |
914 | EOF |
915 | |
916 | __DATA__ |
917 | asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI |
b430fd04 |
918 | crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD* |
10bc17b6 |
919 | ctermid B |stdio | |B_B |
920 | ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI |
921 | drand48 |stdlib |struct drand48_data |I_ST|T=double* |
922 | endgrent |grp | |I_H|V_H |
31ee0cb7 |
923 | endhostent |netdb | |I_D|V_D|D=struct hostent_data* |
924 | endnetent |netdb | |I_D|V_D|D=struct netent_data* |
925 | endprotoent |netdb | |I_D|V_D|D=struct protoent_data* |
10bc17b6 |
926 | endpwent |pwd | |I_H|V_H |
31ee0cb7 |
927 | endservent |netdb | |I_D|V_D|D=struct servent_data* |
10bc17b6 |
928 | getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
929 | getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t |
930 | getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI |
931 | gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|D=struct hostent_data*|T=const void* |
932 | gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data* |
933 | gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data* |
934 | getlogin |unistd | |I_BW|I_BI|B_BW|B_BI |
935 | getnetbyaddr 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 |
936 | getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data* |
937 | getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data* |
938 | getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data* |
939 | getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data* |
940 | getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data* |
941 | getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
942 | getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI |
943 | getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t |
944 | getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data* |
945 | getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data* |
946 | getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data* |
947 | getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI |
948 | gmtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
949 | localtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
950 | random |stdlib |struct random_data|I_TS|T=int* |
951 | readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR* |
952 | readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR* |
953 | setgrent |grp | |I_H|V_H |
954 | sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data* |
955 | setlocale IC |locale | |I_ICBI |
956 | setnetent I |netdb | |I_ID|V_ID|D=struct netent_data* |
957 | setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data* |
958 | setpwent |pwd | |I_H|V_H |
959 | setservent I |netdb | |I_ID|V_ID|D=struct servent_data* |
960 | srand48 L |stdlib |struct drand48_data |I_LS |
961 | srandom T |stdlib |struct random_data|I_TS|T=unsigned int |
962 | strerror I |string | |I_IBW|I_IBI|B_IBW |
963 | tmpnam B |stdio | |B_B |
964 | ttyname I |unistd | |I_IBW|I_IBI|B_IBI |