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1/* -*- buffer-read-only: t -*-
2 *
3 * reentr.c
4 *
5 * Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
6 *
7 * You may distribute under the terms of either the GNU General Public
8 * License or the Artistic License, as specified in the README file.
9 *
10 * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
11 * This file is built by regen/reentr.pl from data in regen/reentr.pl.
12 * Any changes made here will be lost!
13 *
14 * "Saruman," I said, standing away from him, "only one hand at a time can
15 * wield the One, and you know that well, so do not trouble to say we!"
16 *
17 * This file contains a collection of automatically created wrappers
18 * (created by running reentr.pl) for reentrant (thread-safe) versions of
19 * various library calls, such as getpwent_r. The wrapping is done so
20 * that other files like pp_sys.c calling those library functions need not
21 * care about the differences between various platforms' idiosyncrasies
22 * regarding these reentrant interfaces.
23 */
24
25#include "EXTERN.h"
26#define PERL_IN_REENTR_C
27#include "perl.h"
28#include "reentr.h"
29
30void
31Perl_reentrant_size(pTHX) {
32 PERL_UNUSED_CONTEXT;
33#ifdef USE_REENTRANT_API
34#define REENTRANTSMALLSIZE 256 /* Make something up. */
35#define REENTRANTUSUALSIZE 4096 /* Make something up. */
36#ifdef HAS_ASCTIME_R
37 PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
38#endif /* HAS_ASCTIME_R */
39#ifdef HAS_CRYPT_R
40#endif /* HAS_CRYPT_R */
41#ifdef HAS_CTIME_R
42 PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
43#endif /* HAS_CTIME_R */
44#ifdef HAS_GETGRNAM_R
45# if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
46 PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
47 if (PL_reentrant_buffer->_grent_size == (size_t) -1)
48 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
49# else
50# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
51 PL_reentrant_buffer->_grent_size = SIABUFSIZ;
52# else
53# ifdef __sgi
54 PL_reentrant_buffer->_grent_size = BUFSIZ;
55# else
56 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
57# endif
58# endif
59# endif
60#endif /* HAS_GETGRNAM_R */
61#ifdef HAS_GETHOSTBYNAME_R
62#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
63 PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
64#endif
65#endif /* HAS_GETHOSTBYNAME_R */
66#ifdef HAS_GETLOGIN_R
67 PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
68#endif /* HAS_GETLOGIN_R */
69#ifdef HAS_GETNETBYNAME_R
70#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
71 PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
72#endif
73#endif /* HAS_GETNETBYNAME_R */
74#ifdef HAS_GETPROTOBYNAME_R
75#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
76 PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
77#endif
78#endif /* HAS_GETPROTOBYNAME_R */
79#ifdef HAS_GETPWNAM_R
80# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
81 PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
82 if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
83 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
84# else
85# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
86 PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
87# else
88# ifdef __sgi
89 PL_reentrant_buffer->_pwent_size = BUFSIZ;
90# else
91 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
92# endif
93# endif
94# endif
95#endif /* HAS_GETPWNAM_R */
96#ifdef HAS_GETSERVBYNAME_R
97#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
98 PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
99#endif
100#endif /* HAS_GETSERVBYNAME_R */
101#ifdef HAS_GETSPNAM_R
102# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
103 PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
104 if (PL_reentrant_buffer->_spent_size == (size_t) -1)
105 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
106# else
107# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
108 PL_reentrant_buffer->_spent_size = SIABUFSIZ;
109# else
110# ifdef __sgi
111 PL_reentrant_buffer->_spent_size = BUFSIZ;
112# else
113 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
114# endif
115# endif
116# endif
117#endif /* HAS_GETSPNAM_R */
118#ifdef HAS_READDIR_R
119 /* This is the size Solaris recommends.
120 * (though we go static, should use pathconf() instead) */
121 PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
122#endif /* HAS_READDIR_R */
123#ifdef HAS_READDIR64_R
124 /* This is the size Solaris recommends.
125 * (though we go static, should use pathconf() instead) */
126 PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
127#endif /* HAS_READDIR64_R */
128#ifdef HAS_SETLOCALE_R
129 PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
130#endif /* HAS_SETLOCALE_R */
131#ifdef HAS_STRERROR_R
132 PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
133#endif /* HAS_STRERROR_R */
134#ifdef HAS_TTYNAME_R
135 PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
136#endif /* HAS_TTYNAME_R */
137
138#endif /* USE_REENTRANT_API */
139}
140
141void
142Perl_reentrant_init(pTHX) {
143 PERL_UNUSED_CONTEXT;
144#ifdef USE_REENTRANT_API
145 Newx(PL_reentrant_buffer, 1, REENTR);
146 Perl_reentrant_size(aTHX);
147#ifdef HAS_ASCTIME_R
148 Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
149#endif /* HAS_ASCTIME_R */
150#ifdef HAS_CRYPT_R
151#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
152 PL_reentrant_buffer->_crypt_struct_buffer = 0;
153#endif
154#endif /* HAS_CRYPT_R */
155#ifdef HAS_CTIME_R
156 Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
157#endif /* HAS_CTIME_R */
158#ifdef HAS_GETGRNAM_R
159# ifdef USE_GRENT_FPTR
160 PL_reentrant_buffer->_grent_fptr = NULL;
161# endif
162 Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
163#endif /* HAS_GETGRNAM_R */
164#ifdef HAS_GETHOSTBYNAME_R
165#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
166 Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
167#endif
168#endif /* HAS_GETHOSTBYNAME_R */
169#ifdef HAS_GETLOGIN_R
170 Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
171#endif /* HAS_GETLOGIN_R */
172#ifdef HAS_GETNETBYNAME_R
173#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
174 Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
175#endif
176#endif /* HAS_GETNETBYNAME_R */
177#ifdef HAS_GETPROTOBYNAME_R
178#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
179 Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
180#endif
181#endif /* HAS_GETPROTOBYNAME_R */
182#ifdef HAS_GETPWNAM_R
183# ifdef USE_PWENT_FPTR
184 PL_reentrant_buffer->_pwent_fptr = NULL;
185# endif
186 Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
187#endif /* HAS_GETPWNAM_R */
188#ifdef HAS_GETSERVBYNAME_R
189#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
190 Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
191#endif
192#endif /* HAS_GETSERVBYNAME_R */
193#ifdef HAS_GETSPNAM_R
194# ifdef USE_SPENT_FPTR
195 PL_reentrant_buffer->_spent_fptr = NULL;
196# endif
197 Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
198#endif /* HAS_GETSPNAM_R */
199#ifdef HAS_READDIR_R
200 PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
201#endif /* HAS_READDIR_R */
202#ifdef HAS_READDIR64_R
203 PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
204#endif /* HAS_READDIR64_R */
205#ifdef HAS_SETLOCALE_R
206 Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
207#endif /* HAS_SETLOCALE_R */
208#ifdef HAS_STRERROR_R
209 Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
210#endif /* HAS_STRERROR_R */
211#ifdef HAS_TTYNAME_R
212 Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
213#endif /* HAS_TTYNAME_R */
214
215#endif /* USE_REENTRANT_API */
216}
217
218void
219Perl_reentrant_free(pTHX) {
220 PERL_UNUSED_CONTEXT;
221#ifdef USE_REENTRANT_API
222#ifdef HAS_ASCTIME_R
223 Safefree(PL_reentrant_buffer->_asctime_buffer);
224#endif /* HAS_ASCTIME_R */
225#ifdef HAS_CRYPT_R
226#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
227 Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
228#endif
229#endif /* HAS_CRYPT_R */
230#ifdef HAS_CTIME_R
231 Safefree(PL_reentrant_buffer->_ctime_buffer);
232#endif /* HAS_CTIME_R */
233#ifdef HAS_GETGRNAM_R
234 Safefree(PL_reentrant_buffer->_grent_buffer);
235#endif /* HAS_GETGRNAM_R */
236#ifdef HAS_GETHOSTBYNAME_R
237#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
238 Safefree(PL_reentrant_buffer->_hostent_buffer);
239#endif
240#endif /* HAS_GETHOSTBYNAME_R */
241#ifdef HAS_GETLOGIN_R
242 Safefree(PL_reentrant_buffer->_getlogin_buffer);
243#endif /* HAS_GETLOGIN_R */
244#ifdef HAS_GETNETBYNAME_R
245#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
246 Safefree(PL_reentrant_buffer->_netent_buffer);
247#endif
248#endif /* HAS_GETNETBYNAME_R */
249#ifdef HAS_GETPROTOBYNAME_R
250#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
251 Safefree(PL_reentrant_buffer->_protoent_buffer);
252#endif
253#endif /* HAS_GETPROTOBYNAME_R */
254#ifdef HAS_GETPWNAM_R
255 Safefree(PL_reentrant_buffer->_pwent_buffer);
256#endif /* HAS_GETPWNAM_R */
257#ifdef HAS_GETSERVBYNAME_R
258#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
259 Safefree(PL_reentrant_buffer->_servent_buffer);
260#endif
261#endif /* HAS_GETSERVBYNAME_R */
262#ifdef HAS_GETSPNAM_R
263 Safefree(PL_reentrant_buffer->_spent_buffer);
264#endif /* HAS_GETSPNAM_R */
265#ifdef HAS_READDIR_R
266 Safefree(PL_reentrant_buffer->_readdir_struct);
267#endif /* HAS_READDIR_R */
268#ifdef HAS_READDIR64_R
269 Safefree(PL_reentrant_buffer->_readdir64_struct);
270#endif /* HAS_READDIR64_R */
271#ifdef HAS_SETLOCALE_R
272 Safefree(PL_reentrant_buffer->_setlocale_buffer);
273#endif /* HAS_SETLOCALE_R */
274#ifdef HAS_STRERROR_R
275 Safefree(PL_reentrant_buffer->_strerror_buffer);
276#endif /* HAS_STRERROR_R */
277#ifdef HAS_TTYNAME_R
278 Safefree(PL_reentrant_buffer->_ttyname_buffer);
279#endif /* HAS_TTYNAME_R */
280
281 Safefree(PL_reentrant_buffer);
282#endif /* USE_REENTRANT_API */
283}
284
285void*
286Perl_reentrant_retry(const char *f, ...)
287{
288 void *retptr = NULL;
289 va_list ap;
290#ifdef USE_REENTRANT_API
291 dTHX;
292 /* Easier to special case this here than in embed.pl. (Look at what it
293 generates for proto.h) */
294 PERL_ARGS_ASSERT_REENTRANT_RETRY;
295#endif
296 va_start(ap, f);
297 {
298#ifdef USE_REENTRANT_API
299# 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)
300 void *p0;
301# endif
302# if defined(USE_SERVENT_BUFFER)
303 void *p1;
304# endif
305# if defined(USE_HOSTENT_BUFFER)
306 size_t asize;
307# endif
308# if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
309 int anint;
310# endif
311
312 switch (PL_op->op_type) {
313#ifdef USE_HOSTENT_BUFFER
314 case OP_GHBYADDR:
315 case OP_GHBYNAME:
316 case OP_GHOSTENT:
317 {
318#ifdef PERL_REENTRANT_MAXSIZE
319 if (PL_reentrant_buffer->_hostent_size <=
320 PERL_REENTRANT_MAXSIZE / 2)
321#endif
322 {
323 PL_reentrant_buffer->_hostent_size *= 2;
324 Renew(PL_reentrant_buffer->_hostent_buffer,
325 PL_reentrant_buffer->_hostent_size, char);
326 switch (PL_op->op_type) {
327 case OP_GHBYADDR:
328 p0 = va_arg(ap, void *);
329 asize = va_arg(ap, size_t);
330 anint = va_arg(ap, int);
331 retptr = gethostbyaddr(p0, asize, anint); break;
332 case OP_GHBYNAME:
333 p0 = va_arg(ap, void *);
334 retptr = gethostbyname((char *)p0); break;
335 case OP_GHOSTENT:
336 retptr = gethostent(); break;
337 default:
338 SETERRNO(ERANGE, LIB_INVARG);
339 break;
340 }
341 }
342 }
343 break;
344#endif
345#ifdef USE_GRENT_BUFFER
346 case OP_GGRNAM:
347 case OP_GGRGID:
348 case OP_GGRENT:
349 {
350#ifdef PERL_REENTRANT_MAXSIZE
351 if (PL_reentrant_buffer->_grent_size <=
352 PERL_REENTRANT_MAXSIZE / 2)
353#endif
354 {
355 Gid_t gid;
356 PL_reentrant_buffer->_grent_size *= 2;
357 Renew(PL_reentrant_buffer->_grent_buffer,
358 PL_reentrant_buffer->_grent_size, char);
359 switch (PL_op->op_type) {
360 case OP_GGRNAM:
361 p0 = va_arg(ap, void *);
362 retptr = getgrnam((char *)p0); break;
363 case OP_GGRGID:
364#if Gid_t_size < INTSIZE
365 gid = (Gid_t)va_arg(ap, int);
366#else
367 gid = va_arg(ap, Gid_t);
368#endif
369 retptr = getgrgid(gid); break;
370 case OP_GGRENT:
371 retptr = getgrent(); break;
372 default:
373 SETERRNO(ERANGE, LIB_INVARG);
374 break;
375 }
376 }
377 }
378 break;
379#endif
380#ifdef USE_NETENT_BUFFER
381 case OP_GNBYADDR:
382 case OP_GNBYNAME:
383 case OP_GNETENT:
384 {
385#ifdef PERL_REENTRANT_MAXSIZE
386 if (PL_reentrant_buffer->_netent_size <=
387 PERL_REENTRANT_MAXSIZE / 2)
388#endif
389 {
390 Netdb_net_t net;
391 PL_reentrant_buffer->_netent_size *= 2;
392 Renew(PL_reentrant_buffer->_netent_buffer,
393 PL_reentrant_buffer->_netent_size, char);
394 switch (PL_op->op_type) {
395 case OP_GNBYADDR:
396 net = va_arg(ap, Netdb_net_t);
397 anint = va_arg(ap, int);
398 retptr = getnetbyaddr(net, anint); break;
399 case OP_GNBYNAME:
400 p0 = va_arg(ap, void *);
401 retptr = getnetbyname((char *)p0); break;
402 case OP_GNETENT:
403 retptr = getnetent(); break;
404 default:
405 SETERRNO(ERANGE, LIB_INVARG);
406 break;
407 }
408 }
409 }
410 break;
411#endif
412#ifdef USE_PWENT_BUFFER
413 case OP_GPWNAM:
414 case OP_GPWUID:
415 case OP_GPWENT:
416 {
417#ifdef PERL_REENTRANT_MAXSIZE
418 if (PL_reentrant_buffer->_pwent_size <=
419 PERL_REENTRANT_MAXSIZE / 2)
420#endif
421 {
422 Uid_t uid;
423 PL_reentrant_buffer->_pwent_size *= 2;
424 Renew(PL_reentrant_buffer->_pwent_buffer,
425 PL_reentrant_buffer->_pwent_size, char);
426 switch (PL_op->op_type) {
427 case OP_GPWNAM:
428 p0 = va_arg(ap, void *);
429 retptr = getpwnam((char *)p0); break;
430 case OP_GPWUID:
431#if Uid_t_size < INTSIZE
432 uid = (Uid_t)va_arg(ap, int);
433#else
434 uid = va_arg(ap, Uid_t);
435#endif
436 retptr = getpwuid(uid); break;
437#if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
438 case OP_GPWENT:
439 retptr = getpwent(); break;
440#endif
441 default:
442 SETERRNO(ERANGE, LIB_INVARG);
443 break;
444 }
445 }
446 }
447 break;
448#endif
449#ifdef USE_PROTOENT_BUFFER
450 case OP_GPBYNAME:
451 case OP_GPBYNUMBER:
452 case OP_GPROTOENT:
453 {
454#ifdef PERL_REENTRANT_MAXSIZE
455 if (PL_reentrant_buffer->_protoent_size <=
456 PERL_REENTRANT_MAXSIZE / 2)
457#endif
458 {
459 PL_reentrant_buffer->_protoent_size *= 2;
460 Renew(PL_reentrant_buffer->_protoent_buffer,
461 PL_reentrant_buffer->_protoent_size, char);
462 switch (PL_op->op_type) {
463 case OP_GPBYNAME:
464 p0 = va_arg(ap, void *);
465 retptr = getprotobyname((char *)p0); break;
466 case OP_GPBYNUMBER:
467 anint = va_arg(ap, int);
468 retptr = getprotobynumber(anint); break;
469 case OP_GPROTOENT:
470 retptr = getprotoent(); break;
471 default:
472 SETERRNO(ERANGE, LIB_INVARG);
473 break;
474 }
475 }
476 }
477 break;
478#endif
479#ifdef USE_SERVENT_BUFFER
480 case OP_GSBYNAME:
481 case OP_GSBYPORT:
482 case OP_GSERVENT:
483 {
484#ifdef PERL_REENTRANT_MAXSIZE
485 if (PL_reentrant_buffer->_servent_size <=
486 PERL_REENTRANT_MAXSIZE / 2)
487#endif
488 {
489 PL_reentrant_buffer->_servent_size *= 2;
490 Renew(PL_reentrant_buffer->_servent_buffer,
491 PL_reentrant_buffer->_servent_size, char);
492 switch (PL_op->op_type) {
493 case OP_GSBYNAME:
494 p0 = va_arg(ap, void *);
495 p1 = va_arg(ap, void *);
496 retptr = getservbyname((char *)p0, (char *)p1); break;
497 case OP_GSBYPORT:
498 anint = va_arg(ap, int);
499 p0 = va_arg(ap, void *);
500 retptr = getservbyport(anint, (char *)p0); break;
501 case OP_GSERVENT:
502 retptr = getservent(); break;
503 default:
504 SETERRNO(ERANGE, LIB_INVARG);
505 break;
506 }
507 }
508 }
509 break;
510#endif
511 default:
512 /* Not known how to retry, so just fail. */
513 break;
514 }
515#else
516 PERL_UNUSED_ARG(f);
517#endif
518 }
519 va_end(ap);
520 return retptr;
521}
522
523/* ex: set ro: */
Unnamed repository; edit this file 'description' to name the repository.