1 /* -*- buffer-read-only: t -*-
5 * Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
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.
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!
16 * "Saruman," I said, standing away from him, "only one hand at a time can
17 * wield the One, and you know that well, so do not trouble to say we!"
19 * [p.260 of _The Lord of the Rings_, II/ii: "The Council of Elrond"]
23 * This file contains a collection of automatically created wrappers
24 * (created by running reentr.pl) for reentrant (thread-safe) versions of
25 * various library calls, such as getpwent_r. The wrapping is done so
26 * that other files like pp_sys.c calling those library functions need not
27 * care about the differences between various platforms' idiosyncrasies
28 * regarding these reentrant interfaces.
32 #define PERL_IN_REENTR_C
37 Perl_reentrant_size(pTHX) {
39 #ifdef USE_REENTRANT_API
40 #define REENTRANTSMALLSIZE 256 /* Make something up. */
41 #define REENTRANTUSUALSIZE 4096 /* Make something up. */
43 PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
44 #endif /* HAS_ASCTIME_R */
46 #endif /* HAS_CRYPT_R */
48 PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
49 #endif /* HAS_CTIME_R */
51 # if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
52 PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
53 if (PL_reentrant_buffer->_grent_size == (size_t) -1)
54 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
56 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
57 PL_reentrant_buffer->_grent_size = SIABUFSIZ;
60 PL_reentrant_buffer->_grent_size = BUFSIZ;
62 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
66 #endif /* HAS_GETGRNAM_R */
67 #ifdef HAS_GETHOSTBYNAME_R
68 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
69 PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
71 #endif /* HAS_GETHOSTBYNAME_R */
73 PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
74 #endif /* HAS_GETLOGIN_R */
75 #ifdef HAS_GETNETBYNAME_R
76 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
77 PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
79 #endif /* HAS_GETNETBYNAME_R */
80 #ifdef HAS_GETPROTOBYNAME_R
81 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
82 PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
84 #endif /* HAS_GETPROTOBYNAME_R */
86 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
87 PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
88 if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
89 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
91 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
92 PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
95 PL_reentrant_buffer->_pwent_size = BUFSIZ;
97 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
101 #endif /* HAS_GETPWNAM_R */
102 #ifdef HAS_GETSERVBYNAME_R
103 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
104 PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
106 #endif /* HAS_GETSERVBYNAME_R */
107 #ifdef HAS_GETSPNAM_R
108 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
109 PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
110 if (PL_reentrant_buffer->_spent_size == (size_t) -1)
111 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
113 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
114 PL_reentrant_buffer->_spent_size = SIABUFSIZ;
117 PL_reentrant_buffer->_spent_size = BUFSIZ;
119 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
123 #endif /* HAS_GETSPNAM_R */
125 /* This is the size Solaris recommends.
126 * (though we go static, should use pathconf() instead) */
127 PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
128 #endif /* HAS_READDIR_R */
129 #ifdef HAS_READDIR64_R
130 /* This is the size Solaris recommends.
131 * (though we go static, should use pathconf() instead) */
132 PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
133 #endif /* HAS_READDIR64_R */
134 #ifdef HAS_SETLOCALE_R
135 PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
136 #endif /* HAS_SETLOCALE_R */
137 #ifdef HAS_STRERROR_R
138 PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
139 #endif /* HAS_STRERROR_R */
141 PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
142 #endif /* HAS_TTYNAME_R */
144 #endif /* USE_REENTRANT_API */
148 Perl_reentrant_init(pTHX) {
150 #ifdef USE_REENTRANT_API
151 Newx(PL_reentrant_buffer, 1, REENTR);
152 Perl_reentrant_size(aTHX);
154 Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
155 #endif /* HAS_ASCTIME_R */
157 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
158 PL_reentrant_buffer->_crypt_struct_buffer = 0;
160 #endif /* HAS_CRYPT_R */
162 Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
163 #endif /* HAS_CTIME_R */
164 #ifdef HAS_GETGRNAM_R
165 # ifdef USE_GRENT_FPTR
166 PL_reentrant_buffer->_grent_fptr = NULL;
168 Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
169 #endif /* HAS_GETGRNAM_R */
170 #ifdef HAS_GETHOSTBYNAME_R
171 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
172 Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
174 #endif /* HAS_GETHOSTBYNAME_R */
175 #ifdef HAS_GETLOGIN_R
176 Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
177 #endif /* HAS_GETLOGIN_R */
178 #ifdef HAS_GETNETBYNAME_R
179 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
180 Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
182 #endif /* HAS_GETNETBYNAME_R */
183 #ifdef HAS_GETPROTOBYNAME_R
184 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
185 Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
187 #endif /* HAS_GETPROTOBYNAME_R */
188 #ifdef HAS_GETPWNAM_R
189 # ifdef USE_PWENT_FPTR
190 PL_reentrant_buffer->_pwent_fptr = NULL;
192 Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
193 #endif /* HAS_GETPWNAM_R */
194 #ifdef HAS_GETSERVBYNAME_R
195 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
196 Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
198 #endif /* HAS_GETSERVBYNAME_R */
199 #ifdef HAS_GETSPNAM_R
200 # ifdef USE_SPENT_FPTR
201 PL_reentrant_buffer->_spent_fptr = NULL;
203 Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
204 #endif /* HAS_GETSPNAM_R */
206 PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
207 #endif /* HAS_READDIR_R */
208 #ifdef HAS_READDIR64_R
209 PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
210 #endif /* HAS_READDIR64_R */
211 #ifdef HAS_SETLOCALE_R
212 Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
213 #endif /* HAS_SETLOCALE_R */
214 #ifdef HAS_STRERROR_R
215 Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
216 #endif /* HAS_STRERROR_R */
218 Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
219 #endif /* HAS_TTYNAME_R */
221 #endif /* USE_REENTRANT_API */
225 Perl_reentrant_free(pTHX) {
227 #ifdef USE_REENTRANT_API
229 Safefree(PL_reentrant_buffer->_asctime_buffer);
230 #endif /* HAS_ASCTIME_R */
232 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
233 Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
235 #endif /* HAS_CRYPT_R */
237 Safefree(PL_reentrant_buffer->_ctime_buffer);
238 #endif /* HAS_CTIME_R */
239 #ifdef HAS_GETGRNAM_R
240 Safefree(PL_reentrant_buffer->_grent_buffer);
241 #endif /* HAS_GETGRNAM_R */
242 #ifdef HAS_GETHOSTBYNAME_R
243 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
244 Safefree(PL_reentrant_buffer->_hostent_buffer);
246 #endif /* HAS_GETHOSTBYNAME_R */
247 #ifdef HAS_GETLOGIN_R
248 Safefree(PL_reentrant_buffer->_getlogin_buffer);
249 #endif /* HAS_GETLOGIN_R */
250 #ifdef HAS_GETNETBYNAME_R
251 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
252 Safefree(PL_reentrant_buffer->_netent_buffer);
254 #endif /* HAS_GETNETBYNAME_R */
255 #ifdef HAS_GETPROTOBYNAME_R
256 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
257 Safefree(PL_reentrant_buffer->_protoent_buffer);
259 #endif /* HAS_GETPROTOBYNAME_R */
260 #ifdef HAS_GETPWNAM_R
261 Safefree(PL_reentrant_buffer->_pwent_buffer);
262 #endif /* HAS_GETPWNAM_R */
263 #ifdef HAS_GETSERVBYNAME_R
264 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
265 Safefree(PL_reentrant_buffer->_servent_buffer);
267 #endif /* HAS_GETSERVBYNAME_R */
268 #ifdef HAS_GETSPNAM_R
269 Safefree(PL_reentrant_buffer->_spent_buffer);
270 #endif /* HAS_GETSPNAM_R */
272 Safefree(PL_reentrant_buffer->_readdir_struct);
273 #endif /* HAS_READDIR_R */
274 #ifdef HAS_READDIR64_R
275 Safefree(PL_reentrant_buffer->_readdir64_struct);
276 #endif /* HAS_READDIR64_R */
277 #ifdef HAS_SETLOCALE_R
278 Safefree(PL_reentrant_buffer->_setlocale_buffer);
279 #endif /* HAS_SETLOCALE_R */
280 #ifdef HAS_STRERROR_R
281 Safefree(PL_reentrant_buffer->_strerror_buffer);
282 #endif /* HAS_STRERROR_R */
284 Safefree(PL_reentrant_buffer->_ttyname_buffer);
285 #endif /* HAS_TTYNAME_R */
287 Safefree(PL_reentrant_buffer);
288 #endif /* USE_REENTRANT_API */
292 Perl_reentrant_retry(const char *f, ...)
296 #ifdef USE_REENTRANT_API
298 /* Easier to special case this here than in embed.pl. (Look at what it
299 generates for proto.h) */
300 PERL_ARGS_ASSERT_REENTRANT_RETRY;
304 #ifdef USE_REENTRANT_API
305 # 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)
308 # if defined(USE_SERVENT_BUFFER)
311 # if defined(USE_HOSTENT_BUFFER)
314 # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
318 switch (PL_op->op_type) {
319 #ifdef USE_HOSTENT_BUFFER
324 #ifdef PERL_REENTRANT_MAXSIZE
325 if (PL_reentrant_buffer->_hostent_size <=
326 PERL_REENTRANT_MAXSIZE / 2)
329 PL_reentrant_buffer->_hostent_size *= 2;
330 Renew(PL_reentrant_buffer->_hostent_buffer,
331 PL_reentrant_buffer->_hostent_size, char);
332 switch (PL_op->op_type) {
334 p0 = va_arg(ap, void *);
335 asize = va_arg(ap, size_t);
336 anint = va_arg(ap, int);
337 retptr = gethostbyaddr(p0, asize, anint); break;
339 p0 = va_arg(ap, void *);
340 retptr = gethostbyname((char *)p0); break;
342 retptr = gethostent(); break;
344 SETERRNO(ERANGE, LIB_INVARG);
351 #ifdef USE_GRENT_BUFFER
356 #ifdef PERL_REENTRANT_MAXSIZE
357 if (PL_reentrant_buffer->_grent_size <=
358 PERL_REENTRANT_MAXSIZE / 2)
362 PL_reentrant_buffer->_grent_size *= 2;
363 Renew(PL_reentrant_buffer->_grent_buffer,
364 PL_reentrant_buffer->_grent_size, char);
365 switch (PL_op->op_type) {
367 p0 = va_arg(ap, void *);
368 retptr = getgrnam((char *)p0); break;
370 #if Gid_t_size < INTSIZE
371 gid = (Gid_t)va_arg(ap, int);
373 gid = va_arg(ap, Gid_t);
375 retptr = getgrgid(gid); break;
377 retptr = getgrent(); break;
379 SETERRNO(ERANGE, LIB_INVARG);
386 #ifdef USE_NETENT_BUFFER
391 #ifdef PERL_REENTRANT_MAXSIZE
392 if (PL_reentrant_buffer->_netent_size <=
393 PERL_REENTRANT_MAXSIZE / 2)
397 PL_reentrant_buffer->_netent_size *= 2;
398 Renew(PL_reentrant_buffer->_netent_buffer,
399 PL_reentrant_buffer->_netent_size, char);
400 switch (PL_op->op_type) {
402 net = va_arg(ap, Netdb_net_t);
403 anint = va_arg(ap, int);
404 retptr = getnetbyaddr(net, anint); break;
406 p0 = va_arg(ap, void *);
407 retptr = getnetbyname((char *)p0); break;
409 retptr = getnetent(); break;
411 SETERRNO(ERANGE, LIB_INVARG);
418 #ifdef USE_PWENT_BUFFER
423 #ifdef PERL_REENTRANT_MAXSIZE
424 if (PL_reentrant_buffer->_pwent_size <=
425 PERL_REENTRANT_MAXSIZE / 2)
429 PL_reentrant_buffer->_pwent_size *= 2;
430 Renew(PL_reentrant_buffer->_pwent_buffer,
431 PL_reentrant_buffer->_pwent_size, char);
432 switch (PL_op->op_type) {
434 p0 = va_arg(ap, void *);
435 retptr = getpwnam((char *)p0); break;
437 #if Uid_t_size < INTSIZE
438 uid = (Uid_t)va_arg(ap, int);
440 uid = va_arg(ap, Uid_t);
442 retptr = getpwuid(uid); break;
443 #if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
445 retptr = getpwent(); break;
448 SETERRNO(ERANGE, LIB_INVARG);
455 #ifdef USE_PROTOENT_BUFFER
460 #ifdef PERL_REENTRANT_MAXSIZE
461 if (PL_reentrant_buffer->_protoent_size <=
462 PERL_REENTRANT_MAXSIZE / 2)
465 PL_reentrant_buffer->_protoent_size *= 2;
466 Renew(PL_reentrant_buffer->_protoent_buffer,
467 PL_reentrant_buffer->_protoent_size, char);
468 switch (PL_op->op_type) {
470 p0 = va_arg(ap, void *);
471 retptr = getprotobyname((char *)p0); break;
473 anint = va_arg(ap, int);
474 retptr = getprotobynumber(anint); break;
476 retptr = getprotoent(); break;
478 SETERRNO(ERANGE, LIB_INVARG);
485 #ifdef USE_SERVENT_BUFFER
490 #ifdef PERL_REENTRANT_MAXSIZE
491 if (PL_reentrant_buffer->_servent_size <=
492 PERL_REENTRANT_MAXSIZE / 2)
495 PL_reentrant_buffer->_servent_size *= 2;
496 Renew(PL_reentrant_buffer->_servent_buffer,
497 PL_reentrant_buffer->_servent_size, char);
498 switch (PL_op->op_type) {
500 p0 = va_arg(ap, void *);
501 p1 = va_arg(ap, void *);
502 retptr = getservbyname((char *)p0, (char *)p1); break;
504 anint = va_arg(ap, int);
505 p0 = va_arg(ap, void *);
506 retptr = getservbyport(anint, (char *)p0); break;
508 retptr = getservent(); break;
510 SETERRNO(ERANGE, LIB_INVARG);
518 /* Not known how to retry, so just fail. */