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
36 #define RenewDouble(data_pointer, size_pointer, type) \
38 const size_t size = *(size_pointer) * 2; \
39 Renew((data_pointer), (size), type); \
40 *(size_pointer) = size; \
44 Perl_reentrant_size(pTHX) {
46 #ifdef USE_REENTRANT_API
47 #define REENTRANTSMALLSIZE 256 /* Make something up. */
48 #define REENTRANTUSUALSIZE 4096 /* Make something up. */
50 PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
51 #endif /* HAS_ASCTIME_R */
53 #endif /* HAS_CRYPT_R */
55 PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
56 #endif /* HAS_CTIME_R */
58 # if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
59 PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
60 if (PL_reentrant_buffer->_grent_size == (size_t) -1)
61 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
63 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
64 PL_reentrant_buffer->_grent_size = SIABUFSIZ;
67 PL_reentrant_buffer->_grent_size = BUFSIZ;
69 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
73 #endif /* HAS_GETGRNAM_R */
74 #ifdef HAS_GETHOSTBYNAME_R
75 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
76 PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
78 #endif /* HAS_GETHOSTBYNAME_R */
80 PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
81 #endif /* HAS_GETLOGIN_R */
82 #ifdef HAS_GETNETBYNAME_R
83 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
84 PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
86 #endif /* HAS_GETNETBYNAME_R */
87 #ifdef HAS_GETPROTOBYNAME_R
88 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
89 PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
91 #endif /* HAS_GETPROTOBYNAME_R */
93 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
94 PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
95 if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
96 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
98 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
99 PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
102 PL_reentrant_buffer->_pwent_size = BUFSIZ;
104 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
108 #endif /* HAS_GETPWNAM_R */
109 #ifdef HAS_GETSERVBYNAME_R
110 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
111 PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
113 #endif /* HAS_GETSERVBYNAME_R */
114 #ifdef HAS_GETSPNAM_R
115 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
116 PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
117 if (PL_reentrant_buffer->_spent_size == (size_t) -1)
118 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
120 # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
121 PL_reentrant_buffer->_spent_size = SIABUFSIZ;
124 PL_reentrant_buffer->_spent_size = BUFSIZ;
126 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
130 #endif /* HAS_GETSPNAM_R */
132 /* This is the size Solaris recommends.
133 * (though we go static, should use pathconf() instead) */
134 PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
135 #endif /* HAS_READDIR_R */
136 #ifdef HAS_READDIR64_R
137 /* This is the size Solaris recommends.
138 * (though we go static, should use pathconf() instead) */
139 PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
140 #endif /* HAS_READDIR64_R */
141 #ifdef HAS_SETLOCALE_R
142 PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
143 #endif /* HAS_SETLOCALE_R */
144 #ifdef HAS_STRERROR_R
145 PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
146 #endif /* HAS_STRERROR_R */
148 PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
149 #endif /* HAS_TTYNAME_R */
151 #endif /* USE_REENTRANT_API */
155 Perl_reentrant_init(pTHX) {
157 #ifdef USE_REENTRANT_API
158 Newx(PL_reentrant_buffer, 1, REENTR);
159 Perl_reentrant_size(aTHX);
161 Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
162 #endif /* HAS_ASCTIME_R */
164 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
165 PL_reentrant_buffer->_crypt_struct_buffer = 0;
167 #endif /* HAS_CRYPT_R */
169 Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
170 #endif /* HAS_CTIME_R */
171 #ifdef HAS_GETGRNAM_R
172 # ifdef USE_GRENT_FPTR
173 PL_reentrant_buffer->_grent_fptr = NULL;
175 Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
176 #endif /* HAS_GETGRNAM_R */
177 #ifdef HAS_GETHOSTBYNAME_R
178 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
179 Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
181 #endif /* HAS_GETHOSTBYNAME_R */
182 #ifdef HAS_GETLOGIN_R
183 Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
184 #endif /* HAS_GETLOGIN_R */
185 #ifdef HAS_GETNETBYNAME_R
186 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
187 Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
189 #endif /* HAS_GETNETBYNAME_R */
190 #ifdef HAS_GETPROTOBYNAME_R
191 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
192 Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
194 #endif /* HAS_GETPROTOBYNAME_R */
195 #ifdef HAS_GETPWNAM_R
196 # ifdef USE_PWENT_FPTR
197 PL_reentrant_buffer->_pwent_fptr = NULL;
199 Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
200 #endif /* HAS_GETPWNAM_R */
201 #ifdef HAS_GETSERVBYNAME_R
202 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
203 Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
205 #endif /* HAS_GETSERVBYNAME_R */
206 #ifdef HAS_GETSPNAM_R
207 # ifdef USE_SPENT_FPTR
208 PL_reentrant_buffer->_spent_fptr = NULL;
210 Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
211 #endif /* HAS_GETSPNAM_R */
213 PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
214 #endif /* HAS_READDIR_R */
215 #ifdef HAS_READDIR64_R
216 PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
217 #endif /* HAS_READDIR64_R */
218 #ifdef HAS_SETLOCALE_R
219 Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
220 #endif /* HAS_SETLOCALE_R */
221 #ifdef HAS_STRERROR_R
222 Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
223 #endif /* HAS_STRERROR_R */
225 Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
226 #endif /* HAS_TTYNAME_R */
228 #endif /* USE_REENTRANT_API */
232 Perl_reentrant_free(pTHX) {
234 #ifdef USE_REENTRANT_API
236 Safefree(PL_reentrant_buffer->_asctime_buffer);
237 #endif /* HAS_ASCTIME_R */
239 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
240 Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
242 #endif /* HAS_CRYPT_R */
244 Safefree(PL_reentrant_buffer->_ctime_buffer);
245 #endif /* HAS_CTIME_R */
246 #ifdef HAS_GETGRNAM_R
247 Safefree(PL_reentrant_buffer->_grent_buffer);
248 #endif /* HAS_GETGRNAM_R */
249 #ifdef HAS_GETHOSTBYNAME_R
250 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
251 Safefree(PL_reentrant_buffer->_hostent_buffer);
253 #endif /* HAS_GETHOSTBYNAME_R */
254 #ifdef HAS_GETLOGIN_R
255 Safefree(PL_reentrant_buffer->_getlogin_buffer);
256 #endif /* HAS_GETLOGIN_R */
257 #ifdef HAS_GETNETBYNAME_R
258 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
259 Safefree(PL_reentrant_buffer->_netent_buffer);
261 #endif /* HAS_GETNETBYNAME_R */
262 #ifdef HAS_GETPROTOBYNAME_R
263 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
264 Safefree(PL_reentrant_buffer->_protoent_buffer);
266 #endif /* HAS_GETPROTOBYNAME_R */
267 #ifdef HAS_GETPWNAM_R
268 Safefree(PL_reentrant_buffer->_pwent_buffer);
269 #endif /* HAS_GETPWNAM_R */
270 #ifdef HAS_GETSERVBYNAME_R
271 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
272 Safefree(PL_reentrant_buffer->_servent_buffer);
274 #endif /* HAS_GETSERVBYNAME_R */
275 #ifdef HAS_GETSPNAM_R
276 Safefree(PL_reentrant_buffer->_spent_buffer);
277 #endif /* HAS_GETSPNAM_R */
279 Safefree(PL_reentrant_buffer->_readdir_struct);
280 #endif /* HAS_READDIR_R */
281 #ifdef HAS_READDIR64_R
282 Safefree(PL_reentrant_buffer->_readdir64_struct);
283 #endif /* HAS_READDIR64_R */
284 #ifdef HAS_SETLOCALE_R
285 Safefree(PL_reentrant_buffer->_setlocale_buffer);
286 #endif /* HAS_SETLOCALE_R */
287 #ifdef HAS_STRERROR_R
288 Safefree(PL_reentrant_buffer->_strerror_buffer);
289 #endif /* HAS_STRERROR_R */
291 Safefree(PL_reentrant_buffer->_ttyname_buffer);
292 #endif /* HAS_TTYNAME_R */
294 Safefree(PL_reentrant_buffer);
295 #endif /* USE_REENTRANT_API */
299 Perl_reentrant_retry(const char *f, ...)
303 #ifdef USE_REENTRANT_API
305 /* Easier to special case this here than in embed.pl. (Look at what it
306 generates for proto.h) */
307 PERL_ARGS_ASSERT_REENTRANT_RETRY;
311 #ifdef USE_REENTRANT_API
312 # 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)
315 # if defined(USE_SERVENT_BUFFER)
318 # if defined(USE_HOSTENT_BUFFER)
321 # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
325 switch (PL_op->op_type) {
326 #ifdef USE_HOSTENT_BUFFER
331 #ifdef PERL_REENTRANT_MAXSIZE
332 if (PL_reentrant_buffer->_hostent_size <=
333 PERL_REENTRANT_MAXSIZE / 2)
336 RenewDouble(PL_reentrant_buffer->_hostent_buffer,
337 &PL_reentrant_buffer->_hostent_size, char);
338 switch (PL_op->op_type) {
340 p0 = va_arg(ap, void *);
341 asize = va_arg(ap, size_t);
342 anint = va_arg(ap, int);
343 retptr = gethostbyaddr(p0, asize, anint); break;
345 p0 = va_arg(ap, void *);
346 retptr = gethostbyname((char *)p0); break;
348 retptr = gethostent(); break;
350 SETERRNO(ERANGE, LIB_INVARG);
357 #ifdef USE_GRENT_BUFFER
362 #ifdef PERL_REENTRANT_MAXSIZE
363 if (PL_reentrant_buffer->_grent_size <=
364 PERL_REENTRANT_MAXSIZE / 2)
368 RenewDouble(PL_reentrant_buffer->_grent_buffer,
369 &PL_reentrant_buffer->_grent_size, char);
370 switch (PL_op->op_type) {
372 p0 = va_arg(ap, void *);
373 retptr = getgrnam((char *)p0); break;
375 #if Gid_t_size < INTSIZE
376 gid = (Gid_t)va_arg(ap, int);
378 gid = va_arg(ap, Gid_t);
380 retptr = getgrgid(gid); break;
382 retptr = getgrent(); break;
384 SETERRNO(ERANGE, LIB_INVARG);
391 #ifdef USE_NETENT_BUFFER
396 #ifdef PERL_REENTRANT_MAXSIZE
397 if (PL_reentrant_buffer->_netent_size <=
398 PERL_REENTRANT_MAXSIZE / 2)
402 RenewDouble(PL_reentrant_buffer->_netent_buffer,
403 &PL_reentrant_buffer->_netent_size, char);
404 switch (PL_op->op_type) {
406 net = va_arg(ap, Netdb_net_t);
407 anint = va_arg(ap, int);
408 retptr = getnetbyaddr(net, anint); break;
410 p0 = va_arg(ap, void *);
411 retptr = getnetbyname((char *)p0); break;
413 retptr = getnetent(); break;
415 SETERRNO(ERANGE, LIB_INVARG);
422 #ifdef USE_PWENT_BUFFER
427 #ifdef PERL_REENTRANT_MAXSIZE
428 if (PL_reentrant_buffer->_pwent_size <=
429 PERL_REENTRANT_MAXSIZE / 2)
433 RenewDouble(PL_reentrant_buffer->_pwent_buffer,
434 &PL_reentrant_buffer->_pwent_size, char);
435 switch (PL_op->op_type) {
437 p0 = va_arg(ap, void *);
438 retptr = getpwnam((char *)p0); break;
440 #if Uid_t_size < INTSIZE
441 uid = (Uid_t)va_arg(ap, int);
443 uid = va_arg(ap, Uid_t);
445 retptr = getpwuid(uid); break;
446 #if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
448 retptr = getpwent(); break;
451 SETERRNO(ERANGE, LIB_INVARG);
458 #ifdef USE_PROTOENT_BUFFER
463 #ifdef PERL_REENTRANT_MAXSIZE
464 if (PL_reentrant_buffer->_protoent_size <=
465 PERL_REENTRANT_MAXSIZE / 2)
468 RenewDouble(PL_reentrant_buffer->_protoent_buffer,
469 &PL_reentrant_buffer->_protoent_size, char);
470 switch (PL_op->op_type) {
472 p0 = va_arg(ap, void *);
473 retptr = getprotobyname((char *)p0); break;
475 anint = va_arg(ap, int);
476 retptr = getprotobynumber(anint); break;
478 retptr = getprotoent(); break;
480 SETERRNO(ERANGE, LIB_INVARG);
487 #ifdef USE_SERVENT_BUFFER
492 #ifdef PERL_REENTRANT_MAXSIZE
493 if (PL_reentrant_buffer->_servent_size <=
494 PERL_REENTRANT_MAXSIZE / 2)
497 RenewDouble(PL_reentrant_buffer->_servent_buffer,
498 &PL_reentrant_buffer->_servent_size, char);
499 switch (PL_op->op_type) {
501 p0 = va_arg(ap, void *);
502 p1 = va_arg(ap, void *);
503 retptr = getservbyname((char *)p0, (char *)p1); break;
505 anint = va_arg(ap, int);
506 p0 = va_arg(ap, void *);
507 retptr = getservbyport(anint, (char *)p0); break;
509 retptr = getservent(); break;
511 SETERRNO(ERANGE, LIB_INVARG);
519 /* Not known how to retry, so just fail. */