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;
62 # elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
63 PL_reentrant_buffer->_grent_size = SIABUFSIZ;
65 PL_reentrant_buffer->_grent_size = BUFSIZ;
67 PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
69 #endif /* HAS_GETGRNAM_R */
70 #ifdef HAS_GETHOSTBYNAME_R
71 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
72 PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
74 #endif /* HAS_GETHOSTBYNAME_R */
76 PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
77 #endif /* HAS_GETLOGIN_R */
78 #ifdef HAS_GETNETBYNAME_R
79 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
80 PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
82 #endif /* HAS_GETNETBYNAME_R */
83 #ifdef HAS_GETPROTOBYNAME_R
84 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
85 PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
87 #endif /* HAS_GETPROTOBYNAME_R */
89 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
90 PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
91 if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
92 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
93 # elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
94 PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
96 PL_reentrant_buffer->_pwent_size = BUFSIZ;
98 PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
100 #endif /* HAS_GETPWNAM_R */
101 #ifdef HAS_GETSERVBYNAME_R
102 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
103 PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
105 #endif /* HAS_GETSERVBYNAME_R */
106 #ifdef HAS_GETSPNAM_R
107 # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
108 PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
109 if (PL_reentrant_buffer->_spent_size == (size_t) -1)
110 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
111 # elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
112 PL_reentrant_buffer->_spent_size = SIABUFSIZ;
113 # elif defined(__sgi)
114 PL_reentrant_buffer->_spent_size = BUFSIZ;
116 PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
118 #endif /* HAS_GETSPNAM_R */
120 /* This is the size Solaris recommends.
121 * (though we go static, should use pathconf() instead) */
122 PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
123 #endif /* HAS_READDIR_R */
124 #ifdef HAS_READDIR64_R
125 /* This is the size Solaris recommends.
126 * (though we go static, should use pathconf() instead) */
127 PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
128 #endif /* HAS_READDIR64_R */
129 #ifdef HAS_SETLOCALE_R
130 PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
131 #endif /* HAS_SETLOCALE_R */
132 #ifdef HAS_STRERROR_R
133 PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
134 #endif /* HAS_STRERROR_R */
136 PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
137 #endif /* HAS_TTYNAME_R */
139 #endif /* USE_REENTRANT_API */
143 Perl_reentrant_init(pTHX) {
145 #ifdef USE_REENTRANT_API
146 Newx(PL_reentrant_buffer, 1, REENTR);
147 Perl_reentrant_size(aTHX);
149 Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
150 #endif /* HAS_ASCTIME_R */
152 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
153 PL_reentrant_buffer->_crypt_struct_buffer = 0;
155 #endif /* HAS_CRYPT_R */
157 Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
158 #endif /* HAS_CTIME_R */
159 #ifdef HAS_GETGRNAM_R
160 # ifdef USE_GRENT_FPTR
161 PL_reentrant_buffer->_grent_fptr = NULL;
163 Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
164 #endif /* HAS_GETGRNAM_R */
165 #ifdef HAS_GETHOSTBYNAME_R
166 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
167 Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
169 #endif /* HAS_GETHOSTBYNAME_R */
170 #ifdef HAS_GETLOGIN_R
171 Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
172 #endif /* HAS_GETLOGIN_R */
173 #ifdef HAS_GETNETBYNAME_R
174 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
175 Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
177 #endif /* HAS_GETNETBYNAME_R */
178 #ifdef HAS_GETPROTOBYNAME_R
179 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
180 Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
182 #endif /* HAS_GETPROTOBYNAME_R */
183 #ifdef HAS_GETPWNAM_R
184 # ifdef USE_PWENT_FPTR
185 PL_reentrant_buffer->_pwent_fptr = NULL;
187 Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
188 #endif /* HAS_GETPWNAM_R */
189 #ifdef HAS_GETSERVBYNAME_R
190 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
191 Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
193 #endif /* HAS_GETSERVBYNAME_R */
194 #ifdef HAS_GETSPNAM_R
195 # ifdef USE_SPENT_FPTR
196 PL_reentrant_buffer->_spent_fptr = NULL;
198 Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
199 #endif /* HAS_GETSPNAM_R */
201 PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
202 #endif /* HAS_READDIR_R */
203 #ifdef HAS_READDIR64_R
204 PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
205 #endif /* HAS_READDIR64_R */
206 #ifdef HAS_SETLOCALE_R
207 Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
208 #endif /* HAS_SETLOCALE_R */
209 #ifdef HAS_STRERROR_R
210 Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
211 #endif /* HAS_STRERROR_R */
213 Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
214 #endif /* HAS_TTYNAME_R */
216 #endif /* USE_REENTRANT_API */
220 Perl_reentrant_free(pTHX) {
222 #ifdef USE_REENTRANT_API
224 Safefree(PL_reentrant_buffer->_asctime_buffer);
225 #endif /* HAS_ASCTIME_R */
227 #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
228 Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
230 #endif /* HAS_CRYPT_R */
232 Safefree(PL_reentrant_buffer->_ctime_buffer);
233 #endif /* HAS_CTIME_R */
234 #ifdef HAS_GETGRNAM_R
235 Safefree(PL_reentrant_buffer->_grent_buffer);
236 #endif /* HAS_GETGRNAM_R */
237 #ifdef HAS_GETHOSTBYNAME_R
238 #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
239 Safefree(PL_reentrant_buffer->_hostent_buffer);
241 #endif /* HAS_GETHOSTBYNAME_R */
242 #ifdef HAS_GETLOGIN_R
243 Safefree(PL_reentrant_buffer->_getlogin_buffer);
244 #endif /* HAS_GETLOGIN_R */
245 #ifdef HAS_GETNETBYNAME_R
246 #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
247 Safefree(PL_reentrant_buffer->_netent_buffer);
249 #endif /* HAS_GETNETBYNAME_R */
250 #ifdef HAS_GETPROTOBYNAME_R
251 #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
252 Safefree(PL_reentrant_buffer->_protoent_buffer);
254 #endif /* HAS_GETPROTOBYNAME_R */
255 #ifdef HAS_GETPWNAM_R
256 Safefree(PL_reentrant_buffer->_pwent_buffer);
257 #endif /* HAS_GETPWNAM_R */
258 #ifdef HAS_GETSERVBYNAME_R
259 #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
260 Safefree(PL_reentrant_buffer->_servent_buffer);
262 #endif /* HAS_GETSERVBYNAME_R */
263 #ifdef HAS_GETSPNAM_R
264 Safefree(PL_reentrant_buffer->_spent_buffer);
265 #endif /* HAS_GETSPNAM_R */
267 Safefree(PL_reentrant_buffer->_readdir_struct);
268 #endif /* HAS_READDIR_R */
269 #ifdef HAS_READDIR64_R
270 Safefree(PL_reentrant_buffer->_readdir64_struct);
271 #endif /* HAS_READDIR64_R */
272 #ifdef HAS_SETLOCALE_R
273 Safefree(PL_reentrant_buffer->_setlocale_buffer);
274 #endif /* HAS_SETLOCALE_R */
275 #ifdef HAS_STRERROR_R
276 Safefree(PL_reentrant_buffer->_strerror_buffer);
277 #endif /* HAS_STRERROR_R */
279 Safefree(PL_reentrant_buffer->_ttyname_buffer);
280 #endif /* HAS_TTYNAME_R */
282 Safefree(PL_reentrant_buffer);
283 #endif /* USE_REENTRANT_API */
287 Perl_reentrant_retry(const char *f, ...)
291 #ifdef USE_REENTRANT_API
293 /* Easier to special case this here than in embed.pl. (Look at what it
294 generates for proto.h) */
295 PERL_ARGS_ASSERT_REENTRANT_RETRY;
299 #ifdef USE_REENTRANT_API
300 # 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)
303 # if defined(USE_SERVENT_BUFFER)
306 # if defined(USE_HOSTENT_BUFFER)
309 # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
313 switch (PL_op->op_type) {
314 #ifdef USE_HOSTENT_BUFFER
319 #ifdef PERL_REENTRANT_MAXSIZE
320 if (PL_reentrant_buffer->_hostent_size <=
321 PERL_REENTRANT_MAXSIZE / 2)
324 RenewDouble(PL_reentrant_buffer->_hostent_buffer,
325 &PL_reentrant_buffer->_hostent_size, char);
326 switch (PL_op->op_type) {
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;
333 p0 = va_arg(ap, void *);
334 retptr = gethostbyname((char *)p0); break;
336 retptr = gethostent(); break;
338 SETERRNO(ERANGE, LIB_INVARG);
345 #ifdef USE_GRENT_BUFFER
350 #ifdef PERL_REENTRANT_MAXSIZE
351 if (PL_reentrant_buffer->_grent_size <=
352 PERL_REENTRANT_MAXSIZE / 2)
356 RenewDouble(PL_reentrant_buffer->_grent_buffer,
357 &PL_reentrant_buffer->_grent_size, char);
358 switch (PL_op->op_type) {
360 p0 = va_arg(ap, void *);
361 retptr = getgrnam((char *)p0); break;
363 #if Gid_t_size < INTSIZE
364 gid = (Gid_t)va_arg(ap, int);
366 gid = va_arg(ap, Gid_t);
368 retptr = getgrgid(gid); break;
370 retptr = getgrent(); break;
372 SETERRNO(ERANGE, LIB_INVARG);
379 #ifdef USE_NETENT_BUFFER
384 #ifdef PERL_REENTRANT_MAXSIZE
385 if (PL_reentrant_buffer->_netent_size <=
386 PERL_REENTRANT_MAXSIZE / 2)
390 RenewDouble(PL_reentrant_buffer->_netent_buffer,
391 &PL_reentrant_buffer->_netent_size, char);
392 switch (PL_op->op_type) {
394 net = va_arg(ap, Netdb_net_t);
395 anint = va_arg(ap, int);
396 retptr = getnetbyaddr(net, anint); break;
398 p0 = va_arg(ap, void *);
399 retptr = getnetbyname((char *)p0); break;
401 retptr = getnetent(); break;
403 SETERRNO(ERANGE, LIB_INVARG);
410 #ifdef USE_PWENT_BUFFER
415 #ifdef PERL_REENTRANT_MAXSIZE
416 if (PL_reentrant_buffer->_pwent_size <=
417 PERL_REENTRANT_MAXSIZE / 2)
421 RenewDouble(PL_reentrant_buffer->_pwent_buffer,
422 &PL_reentrant_buffer->_pwent_size, char);
423 switch (PL_op->op_type) {
425 p0 = va_arg(ap, void *);
426 retptr = getpwnam((char *)p0); break;
428 #if Uid_t_size < INTSIZE
429 uid = (Uid_t)va_arg(ap, int);
431 uid = va_arg(ap, Uid_t);
433 retptr = getpwuid(uid); break;
434 #if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
436 retptr = getpwent(); break;
439 SETERRNO(ERANGE, LIB_INVARG);
446 #ifdef USE_PROTOENT_BUFFER
451 #ifdef PERL_REENTRANT_MAXSIZE
452 if (PL_reentrant_buffer->_protoent_size <=
453 PERL_REENTRANT_MAXSIZE / 2)
456 RenewDouble(PL_reentrant_buffer->_protoent_buffer,
457 &PL_reentrant_buffer->_protoent_size, char);
458 switch (PL_op->op_type) {
460 p0 = va_arg(ap, void *);
461 retptr = getprotobyname((char *)p0); break;
463 anint = va_arg(ap, int);
464 retptr = getprotobynumber(anint); break;
466 retptr = getprotoent(); break;
468 SETERRNO(ERANGE, LIB_INVARG);
475 #ifdef USE_SERVENT_BUFFER
480 #ifdef PERL_REENTRANT_MAXSIZE
481 if (PL_reentrant_buffer->_servent_size <=
482 PERL_REENTRANT_MAXSIZE / 2)
485 RenewDouble(PL_reentrant_buffer->_servent_buffer,
486 &PL_reentrant_buffer->_servent_size, char);
487 switch (PL_op->op_type) {
489 p0 = va_arg(ap, void *);
490 p1 = va_arg(ap, void *);
491 retptr = getservbyname((char *)p0, (char *)p1); break;
493 anint = va_arg(ap, int);
494 p0 = va_arg(ap, void *);
495 retptr = getservbyport(anint, (char *)p0); break;
497 retptr = getservent(); break;
499 SETERRNO(ERANGE, LIB_INVARG);
507 /* Not known how to retry, so just fail. */