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10bc17b6 |
1 | /* |
2 | * reentr.c |
3 | * |
4 | * Copyright (c) 1997-2002, Larry Wall |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. |
8 | * |
9 | * !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
10 | * This file is built by reentrl.pl from data in reentr.pl. |
11 | * |
12 | * "Saruman," I said, standing away from him, "only one hand at a time can |
13 | * wield the One, and you know that well, so do not trouble to say we!" |
14 | * |
15 | */ |
16 | |
17 | #include "EXTERN.h" |
18 | #define PERL_IN_REENTR_C |
19 | #include "perl.h" |
20 | #include "reentr.h" |
21 | |
22 | void |
23 | Perl_reentrant_size(pTHX) { |
24 | #ifdef USE_REENTRANT_API |
25 | #ifdef HAS_ASCTIME_R |
26 | PL_reentrant_buffer->_asctime_size = 256; /* Make something up. */ |
27 | #endif /* HAS_ASCTIME_R */ |
28 | #ifdef HAS_CRYPT_R |
29 | #endif /* HAS_CRYPT_R */ |
30 | #ifdef HAS_CTIME_R |
31 | PL_reentrant_buffer->_ctime_size = 256; /* Make something up. */ |
32 | #endif /* HAS_CTIME_R */ |
33 | #ifdef HAS_DRAND48_R |
34 | #endif /* HAS_DRAND48_R */ |
35 | #ifdef HAS_GETGRNAM_R |
36 | # if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__) |
37 | PL_reentrant_buffer->_getgrent_size = sysconf(_SC_GETGR_R_SIZE_MAX); |
38 | # else |
39 | # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ) |
40 | PL_reentrant_buffer->_getgrent_size = SIABUFSIZ; |
41 | # else |
42 | # ifdef __sgi |
43 | PL_reentrant_buffer->_getgrent_size = BUFSIZ; |
44 | # else |
edd309b7 |
45 | PL_reentrant_buffer->_getgrent_size = 256; |
10bc17b6 |
46 | # endif |
47 | # endif |
48 | # endif |
49 | #endif /* HAS_GETGRNAM_R */ |
50 | #ifdef HAS_GETHOSTBYNAME_R |
51 | #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
52 | PL_reentrant_buffer->_gethostent_size = 2048; /* Any better ideas? */ |
53 | #endif |
54 | #endif /* HAS_GETHOSTBYNAME_R */ |
55 | #ifdef HAS_GETLOGIN_R |
56 | PL_reentrant_buffer->_getlogin_size = 256; /* Make something up. */ |
57 | #endif /* HAS_GETLOGIN_R */ |
58 | #ifdef HAS_GETNETBYNAME_R |
59 | #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
60 | PL_reentrant_buffer->_getnetent_size = 2048; /* Any better ideas? */ |
61 | #endif |
62 | #endif /* HAS_GETNETBYNAME_R */ |
63 | #ifdef HAS_GETPROTOBYNAME_R |
64 | #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
65 | PL_reentrant_buffer->_getprotoent_size = 2048; /* Any better ideas? */ |
66 | #endif |
67 | #endif /* HAS_GETPROTOBYNAME_R */ |
68 | #ifdef HAS_GETPWNAM_R |
69 | # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__) |
70 | PL_reentrant_buffer->_getpwent_size = sysconf(_SC_GETPW_R_SIZE_MAX); |
71 | # else |
72 | # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ) |
73 | PL_reentrant_buffer->_getpwent_size = SIABUFSIZ; |
74 | # else |
75 | # ifdef __sgi |
76 | PL_reentrant_buffer->_getpwent_size = BUFSIZ; |
77 | # else |
edd309b7 |
78 | PL_reentrant_buffer->_getpwent_size = 256; |
10bc17b6 |
79 | # endif |
80 | # endif |
81 | # endif |
82 | #endif /* HAS_GETPWNAM_R */ |
83 | #ifdef HAS_GETSERVBYNAME_R |
84 | #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD) |
85 | PL_reentrant_buffer->_getservent_size = 2048; /* Any better ideas? */ |
86 | #endif |
87 | #endif /* HAS_GETSERVBYNAME_R */ |
88 | #ifdef HAS_GETSPNAM_R |
89 | PL_reentrant_buffer->_getspent_size = 1024; |
90 | #endif /* HAS_GETSPNAM_R */ |
91 | #ifdef HAS_GMTIME_R |
92 | #endif /* HAS_GMTIME_R */ |
93 | #ifdef HAS_LOCALTIME_R |
94 | #endif /* HAS_LOCALTIME_R */ |
95 | #ifdef HAS_RANDOM_R |
96 | #endif /* HAS_RANDOM_R */ |
97 | #ifdef HAS_READDIR_R |
98 | /* This is the size Solaris recommends. |
99 | * (though we go static, should use pathconf() instead) */ |
100 | PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1; |
101 | #endif /* HAS_READDIR_R */ |
102 | #ifdef HAS_READDIR64_R |
103 | /* This is the size Solaris recommends. |
104 | * (though we go static, should use pathconf() instead) */ |
105 | PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1; |
106 | #endif /* HAS_READDIR64_R */ |
107 | #ifdef HAS_SETLOCALE_R |
108 | PL_reentrant_buffer->_setlocale_size = 256; /* Make something up. */ |
109 | #endif /* HAS_SETLOCALE_R */ |
110 | #ifdef HAS_STRERROR_R |
111 | PL_reentrant_buffer->_strerror_size = 256; /* Make something up. */ |
112 | #endif /* HAS_STRERROR_R */ |
113 | #ifdef HAS_TTYNAME_R |
114 | PL_reentrant_buffer->_ttyname_size = 256; /* Make something up. */ |
115 | #endif /* HAS_TTYNAME_R */ |
116 | |
117 | #endif /* USE_REENTRANT_API */ |
118 | } |
119 | |
120 | void |
121 | Perl_reentrant_init(pTHX) { |
122 | #ifdef USE_REENTRANT_API |
123 | New(31337, PL_reentrant_buffer, 1, REENTR); |
124 | Perl_reentrant_size(aTHX); |
125 | #ifdef HAS_ASCTIME_R |
126 | New(31338, PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char); |
127 | #endif /* HAS_ASCTIME_R */ |
128 | #ifdef HAS_CRYPT_R |
129 | #ifdef __GLIBC__ |
130 | PL_reentrant_buffer->_crypt_struct.initialized = 0; |
131 | #endif |
132 | #endif /* HAS_CRYPT_R */ |
133 | #ifdef HAS_CTIME_R |
134 | New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char); |
135 | #endif /* HAS_CTIME_R */ |
136 | #ifdef HAS_DRAND48_R |
137 | #endif /* HAS_DRAND48_R */ |
138 | #ifdef HAS_GETGRNAM_R |
139 | # ifdef USE_GETGRENT_FPTR |
140 | PL_reentrant_buffer->_getgrent_fptr = NULL; |
141 | # endif |
142 | New(31338, PL_reentrant_buffer->_getgrent_buffer, PL_reentrant_buffer->_getgrent_size, char); |
143 | #endif /* HAS_GETGRNAM_R */ |
144 | #ifdef HAS_GETHOSTBYNAME_R |
145 | #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
146 | New(31338, PL_reentrant_buffer->_gethostent_buffer, PL_reentrant_buffer->_gethostent_size, char); |
147 | #endif |
148 | #endif /* HAS_GETHOSTBYNAME_R */ |
149 | #ifdef HAS_GETLOGIN_R |
150 | New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char); |
151 | #endif /* HAS_GETLOGIN_R */ |
152 | #ifdef HAS_GETNETBYNAME_R |
153 | #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
154 | New(31338, PL_reentrant_buffer->_getnetent_buffer, PL_reentrant_buffer->_getnetent_size, char); |
155 | #endif |
156 | #endif /* HAS_GETNETBYNAME_R */ |
157 | #ifdef HAS_GETPROTOBYNAME_R |
158 | #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
159 | New(31338, PL_reentrant_buffer->_getprotoent_buffer, PL_reentrant_buffer->_getprotoent_size, char); |
160 | #endif |
161 | #endif /* HAS_GETPROTOBYNAME_R */ |
162 | #ifdef HAS_GETPWNAM_R |
163 | # ifdef USE_GETPWENT_FPTR |
164 | PL_reentrant_buffer->_getpwent_fptr = NULL; |
165 | # endif |
166 | New(31338, PL_reentrant_buffer->_getpwent_buffer, PL_reentrant_buffer->_getpwent_size, char); |
167 | #endif /* HAS_GETPWNAM_R */ |
168 | #ifdef HAS_GETSERVBYNAME_R |
169 | #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD) |
170 | New(31338, PL_reentrant_buffer->_getservent_buffer, PL_reentrant_buffer->_getservent_size, char); |
171 | #endif |
172 | #endif /* HAS_GETSERVBYNAME_R */ |
173 | #ifdef HAS_GETSPNAM_R |
174 | New(31338, PL_reentrant_buffer->_getspent_buffer, PL_reentrant_buffer->_getspent_size, char); |
175 | #endif /* HAS_GETSPNAM_R */ |
176 | #ifdef HAS_GMTIME_R |
177 | #endif /* HAS_GMTIME_R */ |
178 | #ifdef HAS_LOCALTIME_R |
179 | #endif /* HAS_LOCALTIME_R */ |
180 | #ifdef HAS_RANDOM_R |
181 | #endif /* HAS_RANDOM_R */ |
182 | #ifdef HAS_READDIR_R |
183 | PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size); |
184 | #endif /* HAS_READDIR_R */ |
185 | #ifdef HAS_READDIR64_R |
186 | PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size); |
187 | #endif /* HAS_READDIR64_R */ |
188 | #ifdef HAS_SETLOCALE_R |
189 | New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char); |
190 | #endif /* HAS_SETLOCALE_R */ |
191 | #ifdef HAS_STRERROR_R |
192 | New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char); |
193 | #endif /* HAS_STRERROR_R */ |
194 | #ifdef HAS_TTYNAME_R |
195 | New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char); |
196 | #endif /* HAS_TTYNAME_R */ |
197 | |
198 | #endif /* USE_REENTRANT_API */ |
199 | } |
200 | |
201 | void |
202 | Perl_reentrant_free(pTHX) { |
203 | #ifdef USE_REENTRANT_API |
204 | #ifdef HAS_ASCTIME_R |
205 | Safefree(PL_reentrant_buffer->_asctime_buffer); |
206 | #endif /* HAS_ASCTIME_R */ |
207 | #ifdef HAS_CRYPT_R |
208 | #endif /* HAS_CRYPT_R */ |
209 | #ifdef HAS_CTIME_R |
210 | Safefree(PL_reentrant_buffer->_ctime_buffer); |
211 | #endif /* HAS_CTIME_R */ |
212 | #ifdef HAS_DRAND48_R |
213 | #endif /* HAS_DRAND48_R */ |
214 | #ifdef HAS_GETGRNAM_R |
215 | Safefree(PL_reentrant_buffer->_getgrent_buffer); |
216 | #endif /* HAS_GETGRNAM_R */ |
217 | #ifdef HAS_GETHOSTBYNAME_R |
218 | #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
219 | Safefree(PL_reentrant_buffer->_gethostent_buffer); |
220 | #endif |
221 | #endif /* HAS_GETHOSTBYNAME_R */ |
222 | #ifdef HAS_GETLOGIN_R |
223 | Safefree(PL_reentrant_buffer->_getlogin_buffer); |
224 | #endif /* HAS_GETLOGIN_R */ |
225 | #ifdef HAS_GETNETBYNAME_R |
226 | #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
227 | Safefree(PL_reentrant_buffer->_getnetent_buffer); |
228 | #endif |
229 | #endif /* HAS_GETNETBYNAME_R */ |
230 | #ifdef HAS_GETPROTOBYNAME_R |
231 | #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD) |
232 | Safefree(PL_reentrant_buffer->_getprotoent_buffer); |
233 | #endif |
234 | #endif /* HAS_GETPROTOBYNAME_R */ |
235 | #ifdef HAS_GETPWNAM_R |
236 | Safefree(PL_reentrant_buffer->_getpwent_buffer); |
237 | #endif /* HAS_GETPWNAM_R */ |
238 | #ifdef HAS_GETSERVBYNAME_R |
239 | #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD) |
240 | Safefree(PL_reentrant_buffer->_getservent_buffer); |
241 | #endif |
242 | #endif /* HAS_GETSERVBYNAME_R */ |
243 | #ifdef HAS_GETSPNAM_R |
244 | Safefree(PL_reentrant_buffer->_getspent_buffer); |
245 | #endif /* HAS_GETSPNAM_R */ |
246 | #ifdef HAS_GMTIME_R |
247 | #endif /* HAS_GMTIME_R */ |
248 | #ifdef HAS_LOCALTIME_R |
249 | #endif /* HAS_LOCALTIME_R */ |
250 | #ifdef HAS_RANDOM_R |
251 | #endif /* HAS_RANDOM_R */ |
252 | #ifdef HAS_READDIR_R |
253 | Safefree(PL_reentrant_buffer->_readdir_struct); |
254 | #endif /* HAS_READDIR_R */ |
255 | #ifdef HAS_READDIR64_R |
256 | Safefree(PL_reentrant_buffer->_readdir64_struct); |
257 | #endif /* HAS_READDIR64_R */ |
258 | #ifdef HAS_SETLOCALE_R |
259 | Safefree(PL_reentrant_buffer->_setlocale_buffer); |
260 | #endif /* HAS_SETLOCALE_R */ |
261 | #ifdef HAS_STRERROR_R |
262 | Safefree(PL_reentrant_buffer->_strerror_buffer); |
263 | #endif /* HAS_STRERROR_R */ |
264 | #ifdef HAS_TTYNAME_R |
265 | Safefree(PL_reentrant_buffer->_ttyname_buffer); |
266 | #endif /* HAS_TTYNAME_R */ |
267 | |
268 | Safefree(PL_reentrant_buffer); |
269 | #endif /* USE_REENTRANT_API */ |
270 | } |
271 | |
edd309b7 |
272 | void* |
273 | Perl_reentrant_retry(const char *f, ...) |
274 | { |
275 | dTHX; |
276 | void *retptr = NULL; |
277 | #ifdef USE_REENTRANT_API |
278 | void *p0, *p1; |
279 | size_t asize; |
280 | int anint; |
281 | va_list ap; |
282 | |
283 | va_start(ap, f); |
284 | |
285 | #define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */ |
286 | |
287 | switch (PL_op->op_type) { |
288 | #ifdef USE_GETHOSTENT_BUFFER |
289 | case OP_GHBYADDR: |
290 | case OP_GHBYNAME: |
291 | case OP_GHOSTENT: |
292 | { |
293 | if (PL_reentrant_buffer->_gethostent_size <= REENTRANTHALFMAXSIZE) { |
294 | PL_reentrant_buffer->_gethostent_size *= 2; |
295 | Renew(PL_reentrant_buffer->_gethostent_buffer, |
296 | PL_reentrant_buffer->_gethostent_size, char); |
297 | switch (PL_op->op_type) { |
298 | case OP_GHBYADDR: |
299 | p0 = va_arg(ap, void *); |
300 | asize = va_arg(ap, size_t); |
301 | anint = va_arg(ap, int); |
302 | retptr = gethostbyaddr(p0, asize, anint); break; |
303 | case OP_GHBYNAME: |
304 | p0 = va_arg(ap, void *); |
305 | retptr = gethostbyname(p0); break; |
306 | case OP_GHOSTENT: |
307 | retptr = gethostent(); break; |
308 | default: |
309 | break; |
310 | } |
311 | } |
312 | } |
313 | break; |
314 | #endif |
315 | #ifdef USE_GETGRENT_BUFFER |
316 | case OP_GGRNAM: |
317 | case OP_GGRGID: |
318 | case OP_GGRENT: |
319 | { |
320 | if (PL_reentrant_buffer->_getgrent_size <= REENTRANTHALFMAXSIZE) { |
321 | Gid_t gid; |
322 | PL_reentrant_buffer->_getgrent_size *= 2; |
323 | Renew(PL_reentrant_buffer->_getgrent_buffer, |
324 | PL_reentrant_buffer->_getgrent_size, char); |
325 | switch (PL_op->op_type) { |
326 | case OP_GGRNAM: |
327 | p0 = va_arg(ap, void *); |
328 | retptr = getgrnam(p0); break; |
329 | case OP_GGRGID: |
330 | gid = va_arg(ap, Gid_t); |
331 | retptr = getgrgid(gid); break; |
332 | case OP_GGRENT: |
333 | retptr = getgrent(); break; |
334 | default: |
335 | break; |
336 | } |
337 | } |
338 | } |
339 | break; |
340 | #endif |
341 | #ifdef USE_GETNETENT_BUFFER |
342 | case OP_GNBYADDR: |
343 | case OP_GNBYNAME: |
344 | case OP_GNETENT: |
345 | { |
346 | if (PL_reentrant_buffer->_getnetent_size <= REENTRANTHALFMAXSIZE) { |
347 | Netdb_net_t net; |
348 | PL_reentrant_buffer->_getnetent_size *= 2; |
349 | Renew(PL_reentrant_buffer->_getnetent_buffer, |
350 | PL_reentrant_buffer->_getnetent_size, char); |
351 | switch (PL_op->op_type) { |
352 | case OP_GNBYADDR: |
353 | net = va_arg(ap, Netdb_net_t); |
354 | anint = va_arg(ap, int); |
355 | retptr = getnetbyaddr(net, anint); break; |
356 | case OP_GNBYNAME: |
357 | p0 = va_arg(ap, void *); |
358 | retptr = getnetbyname(p0); break; |
359 | case OP_GNETENT: |
360 | retptr = getnetent(); break; |
361 | default: |
362 | break; |
363 | } |
364 | } |
365 | } |
366 | break; |
367 | #endif |
368 | #ifdef USE_GETPWENT_BUFFER |
369 | case OP_GPWNAM: |
370 | case OP_GPWUID: |
371 | case OP_GPWENT: |
372 | { |
373 | if (PL_reentrant_buffer->_getpwent_size <= REENTRANTHALFMAXSIZE) { |
374 | Uid_t uid; |
375 | PL_reentrant_buffer->_getpwent_size *= 2; |
376 | Renew(PL_reentrant_buffer->_getpwent_buffer, |
377 | PL_reentrant_buffer->_getpwent_size, char); |
378 | switch (PL_op->op_type) { |
379 | case OP_GPWNAM: |
380 | p0 = va_arg(ap, void *); |
381 | retptr = getpwnam(p0); break; |
382 | case OP_GPWUID: |
383 | uid = va_arg(ap, Uid_t); |
384 | retptr = getpwuid(uid); break; |
385 | case OP_GPWENT: |
386 | retptr = getpwent(); break; |
387 | default: |
388 | break; |
389 | } |
390 | } |
391 | } |
392 | break; |
393 | #endif |
394 | #ifdef USE_GETPROTOENT_BUFFER |
395 | case OP_GPBYNAME: |
396 | case OP_GPBYNUMBER: |
397 | case OP_GPROTOENT: |
398 | { |
399 | if (PL_reentrant_buffer->_getprotoent_size <= REENTRANTHALFMAXSIZE) { |
400 | PL_reentrant_buffer->_getprotoent_size *= 2; |
401 | Renew(PL_reentrant_buffer->_getprotoent_buffer, |
402 | PL_reentrant_buffer->_getprotoent_size, char); |
403 | switch (PL_op->op_type) { |
404 | case OP_GPBYNAME: |
405 | p0 = va_arg(ap, void *); |
406 | retptr = getprotobyname(p0); break; |
407 | case OP_GPBYNUMBER: |
408 | anint = va_arg(ap, int); |
409 | retptr = getprotobynumber(anint); break; |
410 | case OP_GPROTOENT: |
411 | retptr = getprotoent(); break; |
412 | default: |
413 | break; |
414 | } |
415 | } |
416 | } |
417 | break; |
418 | #endif |
419 | #ifdef USE_GETSERVENT_BUFFER |
420 | case OP_GSBYNAME: |
421 | case OP_GSBYPORT: |
422 | case OP_GSERVENT: |
423 | { |
424 | if (PL_reentrant_buffer->_getservent_size <= REENTRANTHALFMAXSIZE) { |
425 | PL_reentrant_buffer->_getservent_size *= 2; |
426 | Renew(PL_reentrant_buffer->_getservent_buffer, |
427 | PL_reentrant_buffer->_getservent_size, char); |
428 | switch (PL_op->op_type) { |
429 | case OP_GSBYNAME: |
430 | p0 = va_arg(ap, void *); |
431 | p1 = va_arg(ap, void *); |
432 | retptr = getservbyname(p0, p1); break; |
433 | case OP_GSBYPORT: |
434 | anint = va_arg(ap, int); |
435 | p0 = va_arg(ap, void *); |
436 | retptr = getservbyport(anint, p0); break; |
437 | case OP_GSERVENT: |
438 | retptr = getservent(); break; |
439 | default: |
440 | break; |
441 | } |
442 | } |
443 | } |
444 | break; |
445 | #endif |
446 | default: |
447 | /* Not known how to retry, so just fail. */ |
448 | break; |
449 | } |
450 | |
451 | va_end(ap); |
452 | #endif |
453 | return retptr; |
454 | } |
455 | |