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 $prereqh"; |
171 | } |
d63eadf0 |
172 | if ($opts{U}) { |
1fdb6f84 |
173 | my @prereq = qw(Inlibc Protochk Hasproto i_systypes usethreads); |
174 | push @prereq, $prereqs; |
175 | my $hdrs = "\$i_systypes sys/types.h define stdio.h $prereqsh"; |
176 | if ($h eq 'time') { |
177 | $hdrs .= " \$i_systime sys/time.h"; |
178 | push @prereq, 'i_systime'; |
179 | } |
d63eadf0 |
180 | print <<EOF; |
10bc17b6 |
181 | ?RCS: \$Id: d_${f}_r.U,v $ |
182 | ?RCS: |
183 | ?RCS: Copyright (c) 2002 Jarkko Hietaniemi |
184 | ?RCS: |
185 | ?RCS: You may distribute under the terms of either the GNU General Public |
186 | ?RCS: License or the Artistic License, as specified in the README file. |
187 | ?RCS: |
188 | ?RCS: Generated by the reentr.pl from the Perl 5.8 distribution. |
189 | ?RCS: |
1fdb6f84 |
190 | ?MAKE:d_${f}_r ${f}_r_proto: @prereq |
10bc17b6 |
191 | ?MAKE: -pick add \$@ %< |
192 | ?S:d_${f}_r: |
193 | ?S: This variable conditionally defines the HAS_${F}_R symbol, |
194 | ?S: which indicates to the C program that the ${f}_r() |
195 | ?S: routine is available. |
196 | ?S:. |
197 | ?S:${f}_r_proto: |
198 | ?S: This variable encodes the prototype of ${f}_r. |
199 | ?S:. |
200 | ?C:HAS_${F}_R: |
201 | ?C: This symbol, if defined, indicates that the ${f}_r routine |
202 | ?C: is available to ${f} re-entrantly. |
203 | ?C:. |
204 | ?C:${F}_R_PROTO: |
205 | ?C: This symbol encodes the prototype of ${f}_r. |
206 | ?C:. |
207 | ?H:#\$d_${f}_r HAS_${F}_R /**/ |
208 | ?H:#define ${F}_R_PROTO \$${f}_r_proto /**/ |
209 | ?H:. |
a48ec845 |
210 | ?T:try hdrs d_${f}_r_proto |
10bc17b6 |
211 | ?LINT:set d_${f}_r |
212 | ?LINT:set ${f}_r_proto |
213 | : see if ${f}_r exists |
214 | set ${f}_r d_${f}_r |
215 | eval \$inlibc |
216 | case "\$d_${f}_r" in |
217 | "\$define") |
d63eadf0 |
218 | EOF |
d63eadf0 |
219 | print <<EOF; |
220 | hdrs="$hdrs" |
c18e646a |
221 | case "\$d_${f}_r_proto:\$usethreads" in |
222 | ":define") d_${f}_r_proto=define |
a48ec845 |
223 | set d_${f}_r_proto ${f}_r \$hdrs |
224 | eval \$hasproto ;; |
225 | *) ;; |
226 | esac |
227 | case "\$d_${f}_r_proto" in |
228 | define) |
10bc17b6 |
229 | EOF |
d63eadf0 |
230 | } |
231 | for my $p (@p) { |
232 | my ($r, $a) = ($p =~ /^(.)_(.+)/); |
233 | my $v = join(", ", map { $m{$_} } split '', $a); |
234 | if ($opts{U}) { |
235 | print <<EOF ; |
10bc17b6 |
236 | case "\$${f}_r_proto" in |
237 | ''|0) try='$m{$r} ${f}_r($v);' |
238 | ./protochk "extern \$try" \$hdrs && ${f}_r_proto=$p ;; |
239 | esac |
240 | EOF |
d63eadf0 |
241 | } |
242 | $seenh{$f}->{$p}++; |
243 | push @{$seena{$f}}, $p; |
244 | $seenp{$p}++; |
245 | $seent{$f} = $t; |
246 | $seens{$f} = $m{S}; |
247 | $seend{$f} = $m{D}; |
248 | } |
249 | if ($opts{U}) { |
250 | print <<EOF; |
10bc17b6 |
251 | case "\$${f}_r_proto" in |
90e831dc |
252 | ''|0) d_${f}_r=undef |
10bc17b6 |
253 | ${f}_r_proto=0 |
a48ec845 |
254 | echo "Disabling ${f}_r, cannot determine prototype." >&4 ;; |
10bc17b6 |
255 | * ) case "\$${f}_r_proto" in |
256 | REENTRANT_PROTO*) ;; |
257 | *) ${f}_r_proto="REENTRANT_PROTO_\$${f}_r_proto" ;; |
258 | esac |
259 | echo "Prototype: \$try" ;; |
260 | esac |
261 | ;; |
c18e646a |
262 | *) case "\$usethreads" in |
263 | define) echo "${f}_r has no prototype, not using it." >&4 ;; |
264 | esac |
90e831dc |
265 | d_${f}_r=undef |
266 | ${f}_r_proto=0 |
c18e646a |
267 | ;; |
a48ec845 |
268 | esac |
269 | ;; |
10bc17b6 |
270 | *) ${f}_r_proto=0 |
271 | ;; |
272 | esac |
273 | |
274 | EOF |
275 | close(U); |
276 | } |
277 | } |
278 | |
279 | close DATA; |
280 | |
281 | select H; |
282 | |
283 | { |
284 | my $i = 1; |
285 | for my $p (sort keys %seenp) { |
286 | print "#define REENTRANT_PROTO_${p} ${i}\n"; |
287 | $i++; |
288 | } |
289 | } |
290 | |
291 | sub ifprotomatch { |
292 | my $F = shift; |
293 | join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_; |
294 | } |
295 | |
296 | my @struct; |
297 | my @size; |
298 | my @init; |
299 | my @free; |
300 | my @wrap; |
301 | my @define; |
302 | |
303 | sub pushssif { |
304 | push @struct, @_; |
305 | push @size, @_; |
306 | push @init, @_; |
307 | push @free, @_; |
308 | } |
309 | |
310 | sub pushinitfree { |
311 | my $f = shift; |
312 | push @init, <<EOF; |
313 | New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char); |
314 | EOF |
315 | push @free, <<EOF; |
316 | Safefree(PL_reentrant_buffer->_${f}_buffer); |
317 | EOF |
318 | } |
319 | |
320 | sub define { |
321 | my ($n, $p, @F) = @_; |
322 | my @H; |
323 | my $H = uc $F[0]; |
324 | push @define, <<EOF; |
325 | /* The @F using \L$n? */ |
326 | |
327 | EOF |
f7937171 |
328 | my $G; |
10bc17b6 |
329 | for my $f (@F) { |
330 | my $F = uc $f; |
331 | my $h = "${F}_R_HAS_$n"; |
332 | push @H, $h; |
333 | my @h = grep { /$p/ } @{$seena{$f}}; |
f7937171 |
334 | unless (defined $G) { |
335 | $G = $F; |
336 | $G =~ s/^GET//; |
337 | } |
10bc17b6 |
338 | if (@h) { |
09310450 |
339 | push @define, "#if defined(HAS_${F}_R) && (" . join(" || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n"; |
10bc17b6 |
340 | |
341 | push @define, <<EOF; |
342 | # define $h |
343 | #else |
344 | # undef $h |
345 | #endif |
346 | EOF |
347 | } |
348 | } |
349 | push @define, <<EOF; |
350 | |
351 | /* Any of the @F using \L$n? */ |
352 | |
353 | EOF |
354 | push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n"; |
355 | push @define, <<EOF; |
f7937171 |
356 | # define USE_${G}_$n |
10bc17b6 |
357 | #else |
f7937171 |
358 | # undef USE_${G}_$n |
10bc17b6 |
359 | #endif |
360 | |
361 | EOF |
362 | } |
363 | |
edd309b7 |
364 | define('BUFFER', 'B', |
365 | qw(getgrent getgrgid getgrnam)); |
366 | |
10bc17b6 |
367 | define('PTR', 'R', |
368 | qw(getgrent getgrgid getgrnam)); |
369 | define('PTR', 'R', |
370 | qw(getpwent getpwnam getpwuid)); |
371 | define('PTR', 'R', |
372 | qw(getspent getspnam)); |
373 | |
374 | define('FPTR', 'H', |
f7937171 |
375 | qw(getgrent getgrgid getgrnam setgrent endgrent)); |
10bc17b6 |
376 | define('FPTR', 'H', |
f7937171 |
377 | qw(getpwent getpwnam getpwuid setpwent endpwent)); |
10bc17b6 |
378 | |
edd309b7 |
379 | define('BUFFER', 'B', |
380 | qw(getpwent getpwgid getpwnam)); |
381 | |
10bc17b6 |
382 | define('PTR', 'R', |
383 | qw(gethostent gethostbyaddr gethostbyname)); |
384 | define('PTR', 'R', |
385 | qw(getnetent getnetbyaddr getnetbyname)); |
386 | define('PTR', 'R', |
387 | qw(getprotoent getprotobyname getprotobynumber)); |
388 | define('PTR', 'R', |
389 | qw(getservent getservbyname getservbyport)); |
390 | |
edd309b7 |
391 | define('BUFFER', 'B', |
392 | qw(gethostent gethostbyaddr gethostbyname)); |
393 | define('BUFFER', 'B', |
394 | qw(getnetent getnetbyaddr getnetbyname)); |
395 | define('BUFFER', 'B', |
396 | qw(getprotoent getprotobyname getprotobynumber)); |
397 | define('BUFFER', 'B', |
398 | qw(getservent getservbyname getservbyport)); |
399 | |
10bc17b6 |
400 | define('ERRNO', 'E', |
401 | qw(gethostent gethostbyaddr gethostbyname)); |
402 | define('ERRNO', 'E', |
403 | qw(getnetent getnetbyaddr getnetbyname)); |
404 | |
405 | for my $f (@seenf) { |
406 | my $F = uc $f; |
407 | my $ifdef = "#ifdef HAS_${F}_R\n"; |
408 | my $endif = "#endif /* HAS_${F}_R */\n"; |
409 | if (exists $seena{$f}) { |
410 | my @p = @{$seena{$f}}; |
411 | if ($f =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) { |
412 | pushssif $ifdef; |
413 | push @struct, <<EOF; |
414 | char* _${f}_buffer; |
415 | size_t _${f}_size; |
416 | EOF |
417 | push @size, <<EOF; |
8695fa85 |
418 | PL_reentrant_buffer->_${f}_size = REENTRANTSMALLSIZE; |
10bc17b6 |
419 | EOF |
420 | pushinitfree $f; |
421 | pushssif $endif; |
422 | } |
b430fd04 |
423 | elsif ($f =~ /^(crypt)$/) { |
10bc17b6 |
424 | pushssif $ifdef; |
425 | push @struct, <<EOF; |
b430fd04 |
426 | #if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD |
427 | $seend{$f} _${f}_data; |
428 | #else |
10bc17b6 |
429 | $seent{$f} _${f}_struct; |
b430fd04 |
430 | #endif |
10bc17b6 |
431 | EOF |
b430fd04 |
432 | push @init, <<EOF; |
10bc17b6 |
433 | #ifdef __GLIBC__ |
434 | PL_reentrant_buffer->_${f}_struct.initialized = 0; |
435 | #endif |
436 | EOF |
b430fd04 |
437 | pushssif $endif; |
438 | } |
439 | elsif ($f =~ /^(drand48|gmtime|localtime|random)$/) { |
440 | pushssif $ifdef; |
441 | push @struct, <<EOF; |
442 | $seent{$f} _${f}_struct; |
443 | EOF |
10bc17b6 |
444 | if ($1 eq 'drand48') { |
445 | push @struct, <<EOF; |
446 | double _${f}_double; |
447 | EOF |
448 | } |
449 | pushssif $endif; |
450 | } |
451 | elsif ($f =~ /^(getgrnam|getpwnam|getspnam)$/) { |
452 | pushssif $ifdef; |
453 | my $g = $f; |
454 | $g =~ s/nam/ent/g; |
f7937171 |
455 | $g =~ s/^get//; |
10bc17b6 |
456 | my $G = uc $g; |
457 | push @struct, <<EOF; |
458 | $seent{$f} _${g}_struct; |
459 | char* _${g}_buffer; |
460 | size_t _${g}_size; |
461 | EOF |
462 | push @struct, <<EOF; |
463 | # ifdef USE_${G}_PTR |
464 | $seent{$f}* _${g}_ptr; |
465 | # endif |
466 | EOF |
467 | if ($g eq 'getspent') { |
468 | push @size, <<EOF; |
469 | PL_reentrant_buffer->_${g}_size = 1024; |
470 | EOF |
471 | } else { |
472 | push @struct, <<EOF; |
473 | # ifdef USE_${G}_FPTR |
474 | FILE* _${g}_fptr; |
475 | # endif |
476 | EOF |
477 | push @init, <<EOF; |
478 | # ifdef USE_${G}_FPTR |
479 | PL_reentrant_buffer->_${g}_fptr = NULL; |
480 | # endif |
481 | EOF |
482 | my $sc = $g eq 'getgrent' ? |
483 | '_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX'; |
e3410746 |
484 | my $sz = $g eq 'getgrent' ? |
f7937171 |
485 | '_grent_size' : '_pwent_size'; |
10bc17b6 |
486 | push @size, <<EOF; |
487 | # if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__) |
488 | PL_reentrant_buffer->_${g}_size = sysconf($sc); |
e3410746 |
489 | if (PL_reentrant_buffer->$sz == -1) |
490 | PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE; |
10bc17b6 |
491 | # else |
492 | # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ) |
493 | PL_reentrant_buffer->_${g}_size = SIABUFSIZ; |
494 | # else |
495 | # ifdef __sgi |
496 | PL_reentrant_buffer->_${g}_size = BUFSIZ; |
497 | # else |
8695fa85 |
498 | PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE; |
10bc17b6 |
499 | # endif |
500 | # endif |
501 | # endif |
502 | EOF |
503 | } |
504 | pushinitfree $g; |
505 | pushssif $endif; |
506 | } |
507 | elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) { |
508 | pushssif $ifdef; |
509 | my $g = $f; |
510 | $g =~ s/byname/ent/; |
f7937171 |
511 | $g =~ s/^get//; |
10bc17b6 |
512 | my $G = uc $g; |
513 | my $D = ifprotomatch($F, grep {/D/} @p); |
514 | my $d = $seend{$f}; |
31ee0cb7 |
515 | $d =~ s/\*$//; # snip: we need need the base type. |
10bc17b6 |
516 | push @struct, <<EOF; |
517 | $seent{$f} _${g}_struct; |
518 | # if $D |
519 | $d _${g}_data; |
520 | # else |
521 | char* _${g}_buffer; |
522 | size_t _${g}_size; |
523 | # endif |
524 | # ifdef USE_${G}_PTR |
525 | $seent{$f}* _${g}_ptr; |
526 | # endif |
527 | EOF |
528 | push @struct, <<EOF; |
529 | # ifdef USE_${G}_ERRNO |
530 | int _${g}_errno; |
531 | # endif |
532 | EOF |
533 | push @size, <<EOF; |
534 | #if !($D) |
8695fa85 |
535 | PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE; |
10bc17b6 |
536 | #endif |
537 | EOF |
538 | push @init, <<EOF; |
539 | #if !($D) |
540 | New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char); |
541 | #endif |
542 | EOF |
543 | push @free, <<EOF; |
544 | #if !($D) |
545 | Safefree(PL_reentrant_buffer->_${g}_buffer); |
546 | #endif |
547 | EOF |
548 | pushssif $endif; |
549 | } |
550 | elsif ($f =~ /^(readdir|readdir64)$/) { |
551 | pushssif $ifdef; |
552 | my $R = ifprotomatch($F, grep {/R/} @p); |
553 | push @struct, <<EOF; |
554 | $seent{$f}* _${f}_struct; |
555 | size_t _${f}_size; |
556 | # if $R |
557 | $seent{$f}* _${f}_ptr; |
558 | # endif |
559 | EOF |
560 | push @size, <<EOF; |
561 | /* This is the size Solaris recommends. |
562 | * (though we go static, should use pathconf() instead) */ |
563 | PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1; |
564 | EOF |
565 | push @init, <<EOF; |
566 | PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size); |
567 | EOF |
568 | push @free, <<EOF; |
569 | Safefree(PL_reentrant_buffer->_${f}_struct); |
570 | EOF |
571 | pushssif $endif; |
572 | } |
573 | |
574 | push @wrap, $ifdef; |
575 | |
10bc17b6 |
576 | push @wrap, <<EOF; |
577 | # undef $f |
578 | EOF |
579 | my @v = 'a'..'z'; |
580 | my $v = join(", ", @v[0..$seenu{$f}-1]); |
581 | for my $p (@p) { |
582 | my ($r, $a) = split '_', $p; |
583 | my $test = $r eq 'I' ? ' == 0' : ''; |
584 | my $true = 1; |
10bc17b6 |
585 | my $g = $f; |
586 | if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) { |
f7937171 |
587 | $g = "$1ent"; |
10bc17b6 |
588 | } elsif ($g eq 'srand48') { |
589 | $g = "drand48"; |
590 | } |
591 | my $b = $a; |
592 | my $w = ''; |
593 | substr($b, 0, $seenu{$f}) = ''; |
594 | if ($b =~ /R/) { |
595 | $true = "PL_reentrant_buffer->_${g}_ptr"; |
596 | } elsif ($b =~ /T/ && $f eq 'drand48') { |
597 | $true = "PL_reentrant_buffer->_${g}_double"; |
598 | } elsif ($b =~ /S/) { |
599 | if ($f =~ /^readdir/) { |
600 | $true = "PL_reentrant_buffer->_${g}_struct"; |
601 | } else { |
602 | $true = "&PL_reentrant_buffer->_${g}_struct"; |
603 | } |
604 | } elsif ($b =~ /B/) { |
605 | $true = "PL_reentrant_buffer->_${g}_buffer"; |
606 | } |
607 | if (length $b) { |
608 | $w = join ", ", |
609 | map { |
610 | $_ eq 'R' ? |
611 | "&PL_reentrant_buffer->_${g}_ptr" : |
612 | $_ eq 'E' ? |
613 | "&PL_reentrant_buffer->_${g}_errno" : |
614 | $_ eq 'B' ? |
615 | "PL_reentrant_buffer->_${g}_buffer" : |
616 | $_ =~ /^[WI]$/ ? |
617 | "PL_reentrant_buffer->_${g}_size" : |
618 | $_ eq 'H' ? |
619 | "&PL_reentrant_buffer->_${g}_fptr" : |
620 | $_ eq 'D' ? |
621 | "&PL_reentrant_buffer->_${g}_data" : |
622 | $_ eq 'S' ? |
623 | ($f =~ /^readdir/ ? |
624 | "PL_reentrant_buffer->_${g}_struct" : |
625 | "&PL_reentrant_buffer->_${g}_struct" ) : |
626 | $_ eq 'T' && $f eq 'drand48' ? |
627 | "&PL_reentrant_buffer->_${g}_double" : |
628 | $_ |
629 | } split '', $b; |
630 | $w = ", $w" if length $v; |
631 | } |
632 | my $call = "${f}_r($v$w)"; |
633 | $call = "((errno = $call))" if $r eq 'I'; |
634 | push @wrap, <<EOF; |
635 | # if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p |
636 | EOF |
637 | if ($r eq 'V' || $r eq 'B') { |
638 | push @wrap, <<EOF; |
639 | # define $f($v) $call |
640 | EOF |
641 | } else { |
edd309b7 |
642 | if ($f =~ /^get/) { |
643 | my $rv = $v ? ", $v" : ""; |
644 | push @wrap, <<EOF; |
645 | # define $f($v) ($call$test ? $true : (errno == ERANGE ? Perl_reentrant_retry("$f"$rv) : 0)) |
10bc17b6 |
646 | EOF |
edd309b7 |
647 | } else { |
648 | push @wrap, <<EOF; |
649 | # define $f($v) ($call$test ? $true : 0) |
650 | EOF |
651 | } |
10bc17b6 |
652 | } |
653 | push @wrap, <<EOF; |
654 | # endif |
655 | EOF |
656 | } |
657 | |
658 | push @wrap, $endif, "\n"; |
659 | } |
660 | } |
661 | |
662 | local $" = ''; |
663 | |
664 | print <<EOF; |
665 | |
666 | /* Defines for indicating which special features are supported. */ |
667 | |
668 | @define |
669 | typedef struct { |
670 | @struct |
671 | } REENTR; |
672 | |
673 | /* The wrappers. */ |
674 | |
675 | @wrap |
676 | #endif /* USE_REENTRANT_API */ |
677 | |
678 | #endif |
679 | |
680 | EOF |
681 | |
682 | close(H); |
683 | |
684 | die "reentr.c: $!" unless open(C, ">reentr.c"); |
685 | select C; |
686 | print <<EOF; |
687 | /* |
688 | * reentr.c |
689 | * |
690 | * Copyright (c) 1997-2002, Larry Wall |
691 | * |
692 | * You may distribute under the terms of either the GNU General Public |
693 | * License or the Artistic License, as specified in the README file. |
694 | * |
695 | * !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
696 | * This file is built by reentrl.pl from data in reentr.pl. |
697 | * |
698 | * "Saruman," I said, standing away from him, "only one hand at a time can |
699 | * wield the One, and you know that well, so do not trouble to say we!" |
700 | * |
701 | */ |
702 | |
703 | #include "EXTERN.h" |
704 | #define PERL_IN_REENTR_C |
705 | #include "perl.h" |
706 | #include "reentr.h" |
707 | |
708 | void |
709 | Perl_reentrant_size(pTHX) { |
710 | #ifdef USE_REENTRANT_API |
8695fa85 |
711 | #define REENTRANTSMALLSIZE 256 /* Make something up. */ |
712 | #define REENTRANTUSUALSIZE 4096 /* Make something up. */ |
10bc17b6 |
713 | @size |
714 | #endif /* USE_REENTRANT_API */ |
715 | } |
716 | |
717 | void |
718 | Perl_reentrant_init(pTHX) { |
719 | #ifdef USE_REENTRANT_API |
720 | New(31337, PL_reentrant_buffer, 1, REENTR); |
721 | Perl_reentrant_size(aTHX); |
722 | @init |
723 | #endif /* USE_REENTRANT_API */ |
724 | } |
725 | |
726 | void |
727 | Perl_reentrant_free(pTHX) { |
728 | #ifdef USE_REENTRANT_API |
729 | @free |
730 | Safefree(PL_reentrant_buffer); |
731 | #endif /* USE_REENTRANT_API */ |
732 | } |
733 | |
edd309b7 |
734 | void* |
735 | Perl_reentrant_retry(const char *f, ...) |
736 | { |
737 | dTHX; |
738 | void *retptr = NULL; |
739 | #ifdef USE_REENTRANT_API |
f7937171 |
740 | # if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SRVENT_BUFFER) |
e3410746 |
741 | void *p0; |
742 | # endif |
f7937171 |
743 | # if defined(USE_SERVENT_BUFFER) |
e3410746 |
744 | void *p1; |
745 | # endif |
f7937171 |
746 | # if defined(USE_HOSTENT_BUFFER) |
edd309b7 |
747 | size_t asize; |
e3410746 |
748 | # endif |
f7937171 |
749 | # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER) |
edd309b7 |
750 | int anint; |
e3410746 |
751 | # endif |
edd309b7 |
752 | va_list ap; |
753 | |
754 | va_start(ap, f); |
755 | |
756 | #define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */ |
757 | |
758 | switch (PL_op->op_type) { |
f7937171 |
759 | #ifdef USE_HOSTENT_BUFFER |
edd309b7 |
760 | case OP_GHBYADDR: |
761 | case OP_GHBYNAME: |
762 | case OP_GHOSTENT: |
763 | { |
f7937171 |
764 | if (PL_reentrant_buffer->_hostent_size <= REENTRANTHALFMAXSIZE) { |
765 | PL_reentrant_buffer->_hostent_size *= 2; |
766 | Renew(PL_reentrant_buffer->_hostent_buffer, |
767 | PL_reentrant_buffer->_hostent_size, char); |
edd309b7 |
768 | switch (PL_op->op_type) { |
769 | case OP_GHBYADDR: |
770 | p0 = va_arg(ap, void *); |
771 | asize = va_arg(ap, size_t); |
772 | anint = va_arg(ap, int); |
773 | retptr = gethostbyaddr(p0, asize, anint); break; |
774 | case OP_GHBYNAME: |
775 | p0 = va_arg(ap, void *); |
776 | retptr = gethostbyname(p0); break; |
777 | case OP_GHOSTENT: |
778 | retptr = gethostent(); break; |
779 | default: |
780 | break; |
781 | } |
782 | } |
783 | } |
784 | break; |
785 | #endif |
f7937171 |
786 | #ifdef USE_GRENT_BUFFER |
edd309b7 |
787 | case OP_GGRNAM: |
788 | case OP_GGRGID: |
789 | case OP_GGRENT: |
790 | { |
f7937171 |
791 | if (PL_reentrant_buffer->_grent_size <= REENTRANTHALFMAXSIZE) { |
edd309b7 |
792 | Gid_t gid; |
f7937171 |
793 | PL_reentrant_buffer->_grent_size *= 2; |
794 | Renew(PL_reentrant_buffer->_grent_buffer, |
795 | PL_reentrant_buffer->_grent_size, char); |
edd309b7 |
796 | switch (PL_op->op_type) { |
797 | case OP_GGRNAM: |
798 | p0 = va_arg(ap, void *); |
799 | retptr = getgrnam(p0); break; |
800 | case OP_GGRGID: |
801 | gid = va_arg(ap, Gid_t); |
802 | retptr = getgrgid(gid); break; |
803 | case OP_GGRENT: |
804 | retptr = getgrent(); break; |
805 | default: |
806 | break; |
807 | } |
808 | } |
809 | } |
810 | break; |
811 | #endif |
f7937171 |
812 | #ifdef USE_NETENT_BUFFER |
edd309b7 |
813 | case OP_GNBYADDR: |
814 | case OP_GNBYNAME: |
815 | case OP_GNETENT: |
816 | { |
f7937171 |
817 | if (PL_reentrant_buffer->_netent_size <= REENTRANTHALFMAXSIZE) { |
edd309b7 |
818 | Netdb_net_t net; |
f7937171 |
819 | PL_reentrant_buffer->_netent_size *= 2; |
820 | Renew(PL_reentrant_buffer->_netent_buffer, |
821 | PL_reentrant_buffer->_netent_size, char); |
edd309b7 |
822 | switch (PL_op->op_type) { |
823 | case OP_GNBYADDR: |
824 | net = va_arg(ap, Netdb_net_t); |
825 | anint = va_arg(ap, int); |
826 | retptr = getnetbyaddr(net, anint); break; |
827 | case OP_GNBYNAME: |
828 | p0 = va_arg(ap, void *); |
829 | retptr = getnetbyname(p0); break; |
830 | case OP_GNETENT: |
831 | retptr = getnetent(); break; |
832 | default: |
833 | break; |
834 | } |
835 | } |
836 | } |
837 | break; |
838 | #endif |
f7937171 |
839 | #ifdef USE_PWENT_BUFFER |
edd309b7 |
840 | case OP_GPWNAM: |
841 | case OP_GPWUID: |
842 | case OP_GPWENT: |
843 | { |
f7937171 |
844 | if (PL_reentrant_buffer->_pwent_size <= REENTRANTHALFMAXSIZE) { |
edd309b7 |
845 | Uid_t uid; |
f7937171 |
846 | PL_reentrant_buffer->_pwent_size *= 2; |
847 | Renew(PL_reentrant_buffer->_pwent_buffer, |
848 | PL_reentrant_buffer->_pwent_size, char); |
edd309b7 |
849 | switch (PL_op->op_type) { |
850 | case OP_GPWNAM: |
851 | p0 = va_arg(ap, void *); |
852 | retptr = getpwnam(p0); break; |
853 | case OP_GPWUID: |
854 | uid = va_arg(ap, Uid_t); |
855 | retptr = getpwuid(uid); break; |
856 | case OP_GPWENT: |
857 | retptr = getpwent(); break; |
858 | default: |
859 | break; |
860 | } |
861 | } |
862 | } |
863 | break; |
864 | #endif |
f7937171 |
865 | #ifdef USE_PROTOENT_BUFFER |
edd309b7 |
866 | case OP_GPBYNAME: |
867 | case OP_GPBYNUMBER: |
868 | case OP_GPROTOENT: |
869 | { |
f7937171 |
870 | if (PL_reentrant_buffer->_protoent_size <= REENTRANTHALFMAXSIZE) { |
871 | PL_reentrant_buffer->_protoent_size *= 2; |
872 | Renew(PL_reentrant_buffer->_protoent_buffer, |
873 | PL_reentrant_buffer->_protoent_size, char); |
edd309b7 |
874 | switch (PL_op->op_type) { |
875 | case OP_GPBYNAME: |
876 | p0 = va_arg(ap, void *); |
877 | retptr = getprotobyname(p0); break; |
878 | case OP_GPBYNUMBER: |
879 | anint = va_arg(ap, int); |
880 | retptr = getprotobynumber(anint); break; |
881 | case OP_GPROTOENT: |
882 | retptr = getprotoent(); break; |
883 | default: |
884 | break; |
885 | } |
886 | } |
887 | } |
888 | break; |
889 | #endif |
f7937171 |
890 | #ifdef USE_SERVENT_BUFFER |
edd309b7 |
891 | case OP_GSBYNAME: |
892 | case OP_GSBYPORT: |
893 | case OP_GSERVENT: |
894 | { |
f7937171 |
895 | if (PL_reentrant_buffer->_servent_size <= REENTRANTHALFMAXSIZE) { |
896 | PL_reentrant_buffer->_servent_size *= 2; |
897 | Renew(PL_reentrant_buffer->_servent_buffer, |
898 | PL_reentrant_buffer->_servent_size, char); |
edd309b7 |
899 | switch (PL_op->op_type) { |
900 | case OP_GSBYNAME: |
901 | p0 = va_arg(ap, void *); |
902 | p1 = va_arg(ap, void *); |
903 | retptr = getservbyname(p0, p1); break; |
904 | case OP_GSBYPORT: |
905 | anint = va_arg(ap, int); |
906 | p0 = va_arg(ap, void *); |
907 | retptr = getservbyport(anint, p0); break; |
908 | case OP_GSERVENT: |
909 | retptr = getservent(); break; |
910 | default: |
911 | break; |
912 | } |
913 | } |
914 | } |
915 | break; |
916 | #endif |
917 | default: |
918 | /* Not known how to retry, so just fail. */ |
919 | break; |
920 | } |
921 | |
922 | va_end(ap); |
923 | #endif |
924 | return retptr; |
925 | } |
926 | |
10bc17b6 |
927 | EOF |
928 | |
929 | __DATA__ |
930 | asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI |
b430fd04 |
931 | crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD* |
10bc17b6 |
932 | ctermid B |stdio | |B_B |
933 | ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI |
934 | drand48 |stdlib |struct drand48_data |I_ST|T=double* |
935 | endgrent |grp | |I_H|V_H |
31ee0cb7 |
936 | endhostent |netdb | |I_D|V_D|D=struct hostent_data* |
937 | endnetent |netdb | |I_D|V_D|D=struct netent_data* |
938 | endprotoent |netdb | |I_D|V_D|D=struct protoent_data* |
10bc17b6 |
939 | endpwent |pwd | |I_H|V_H |
31ee0cb7 |
940 | endservent |netdb | |I_D|V_D|D=struct servent_data* |
10bc17b6 |
941 | getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
942 | getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t |
943 | getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI |
944 | 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* |
945 | gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data* |
946 | gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data* |
947 | getlogin |unistd | |I_BW|I_BI|B_BW|B_BI |
948 | 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 |
949 | getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data* |
950 | getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data* |
951 | getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data* |
952 | getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data* |
953 | getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data* |
954 | getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH |
955 | getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI |
956 | getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t |
957 | getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data* |
958 | getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data* |
959 | getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data* |
960 | getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI |
961 | gmtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
962 | localtime T |time |struct tm |S_TS|I_TS|T=const time_t* |
963 | random |stdlib |struct random_data|I_TS|T=int* |
964 | readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR* |
965 | readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR* |
966 | setgrent |grp | |I_H|V_H |
967 | sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data* |
968 | setlocale IC |locale | |I_ICBI |
969 | setnetent I |netdb | |I_ID|V_ID|D=struct netent_data* |
970 | setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data* |
971 | setpwent |pwd | |I_H|V_H |
972 | setservent I |netdb | |I_ID|V_ID|D=struct servent_data* |
973 | srand48 L |stdlib |struct drand48_data |I_LS |
974 | srandom T |stdlib |struct random_data|I_TS|T=unsigned int |
975 | strerror I |string | |I_IBW|I_IBI|B_IBW |
976 | tmpnam B |stdio | |B_B |
977 | ttyname I |unistd | |I_IBW|I_IBI|B_IBI |