File Coverage

reentr.c
Criterion Covered Total %
statement 0 10 0.0
branch n/a
condition n/a
subroutine n/a
total 0 10 0.0


line stmt bran cond sub time code
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            
30           void
31 0         Perl_reentrant_size(pTHX) {
32           #ifdef USE_REENTRANT_API
33           #define REENTRANTSMALLSIZE 256 /* Make something up. */
34           #define REENTRANTUSUALSIZE 4096 /* Make something up. */
35           #ifdef HAS_ASCTIME_R
36           PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
37           #endif /* HAS_ASCTIME_R */
38           #ifdef HAS_CRYPT_R
39           #endif /* HAS_CRYPT_R */
40           #ifdef HAS_CTIME_R
41           PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
42           #endif /* HAS_CTIME_R */
43           #ifdef HAS_DRAND48_R
44           #endif /* HAS_DRAND48_R */
45           #ifdef HAS_GETGRNAM_R
46           # if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
47           PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
48           if (PL_reentrant_buffer->_grent_size == (size_t) -1)
49           PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
50           # else
51           # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
52           PL_reentrant_buffer->_grent_size = SIABUFSIZ;
53           # else
54           # ifdef __sgi
55           PL_reentrant_buffer->_grent_size = BUFSIZ;
56           # else
57           PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
58           # endif
59           # endif
60           # endif
61           #endif /* HAS_GETGRNAM_R */
62           #ifdef HAS_GETHOSTBYNAME_R
63           #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
64           PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
65           #endif
66           #endif /* HAS_GETHOSTBYNAME_R */
67           #ifdef HAS_GETLOGIN_R
68           PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
69           #endif /* HAS_GETLOGIN_R */
70           #ifdef HAS_GETNETBYNAME_R
71           #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
72           PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
73           #endif
74           #endif /* HAS_GETNETBYNAME_R */
75           #ifdef HAS_GETPROTOBYNAME_R
76           #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
77           PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
78           #endif
79           #endif /* HAS_GETPROTOBYNAME_R */
80           #ifdef HAS_GETPWNAM_R
81           # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
82           PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
83           if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
84           PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
85           # else
86           # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
87           PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
88           # else
89           # ifdef __sgi
90           PL_reentrant_buffer->_pwent_size = BUFSIZ;
91           # else
92           PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
93           # endif
94           # endif
95           # endif
96           #endif /* HAS_GETPWNAM_R */
97           #ifdef HAS_GETSERVBYNAME_R
98           #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
99           PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
100           #endif
101           #endif /* HAS_GETSERVBYNAME_R */
102           #ifdef HAS_GETSPNAM_R
103           # if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
104           PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
105           if (PL_reentrant_buffer->_spent_size == (size_t) -1)
106           PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
107           # else
108           # if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
109           PL_reentrant_buffer->_spent_size = SIABUFSIZ;
110           # else
111           # ifdef __sgi
112           PL_reentrant_buffer->_spent_size = BUFSIZ;
113           # else
114           PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
115           # endif
116           # endif
117           # endif
118           #endif /* HAS_GETSPNAM_R */
119           #ifdef HAS_RANDOM_R
120           #endif /* HAS_RANDOM_R */
121           #ifdef HAS_READDIR_R
122           /* This is the size Solaris recommends.
123           * (though we go static, should use pathconf() instead) */
124           PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
125           #endif /* HAS_READDIR_R */
126           #ifdef HAS_READDIR64_R
127           /* This is the size Solaris recommends.
128           * (though we go static, should use pathconf() instead) */
129           PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
130           #endif /* HAS_READDIR64_R */
131           #ifdef HAS_SETLOCALE_R
132           PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
133           #endif /* HAS_SETLOCALE_R */
134           #ifdef HAS_SRANDOM_R
135           #endif /* HAS_SRANDOM_R */
136           #ifdef HAS_STRERROR_R
137           PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
138           #endif /* HAS_STRERROR_R */
139           #ifdef HAS_TTYNAME_R
140           PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
141           #endif /* HAS_TTYNAME_R */
142            
143           #endif /* USE_REENTRANT_API */
144 0         }
145            
146           void
147 0         Perl_reentrant_init(pTHX) {
148           #ifdef USE_REENTRANT_API
149           Newx(PL_reentrant_buffer, 1, REENTR);
150           Perl_reentrant_size(aTHX);
151           #ifdef HAS_ASCTIME_R
152           Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
153           #endif /* HAS_ASCTIME_R */
154           #ifdef HAS_CRYPT_R
155           #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
156           PL_reentrant_buffer->_crypt_struct_buffer = 0;
157           #endif
158           #endif /* HAS_CRYPT_R */
159           #ifdef HAS_CTIME_R
160           Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
161           #endif /* HAS_CTIME_R */
162           #ifdef HAS_DRAND48_R
163           #endif /* HAS_DRAND48_R */
164           #ifdef HAS_GETGRNAM_R
165           # ifdef USE_GRENT_FPTR
166           PL_reentrant_buffer->_grent_fptr = NULL;
167           # endif
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);
173           #endif
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);
181           #endif
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);
186           #endif
187           #endif /* HAS_GETPROTOBYNAME_R */
188           #ifdef HAS_GETPWNAM_R
189           # ifdef USE_PWENT_FPTR
190           PL_reentrant_buffer->_pwent_fptr = NULL;
191           # endif
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);
197           #endif
198           #endif /* HAS_GETSERVBYNAME_R */
199           #ifdef HAS_GETSPNAM_R
200           # ifdef USE_SPENT_FPTR
201           PL_reentrant_buffer->_spent_fptr = NULL;
202           # endif
203           Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
204           #endif /* HAS_GETSPNAM_R */
205           #ifdef HAS_RANDOM_R
206           #endif /* HAS_RANDOM_R */
207           #ifdef HAS_READDIR_R
208           PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
209           #endif /* HAS_READDIR_R */
210           #ifdef HAS_READDIR64_R
211           PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
212           #endif /* HAS_READDIR64_R */
213           #ifdef HAS_SETLOCALE_R
214           Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
215           #endif /* HAS_SETLOCALE_R */
216           #ifdef HAS_SRANDOM_R
217           #endif /* HAS_SRANDOM_R */
218           #ifdef HAS_STRERROR_R
219           Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
220           #endif /* HAS_STRERROR_R */
221           #ifdef HAS_TTYNAME_R
222           Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
223           #endif /* HAS_TTYNAME_R */
224            
225           #endif /* USE_REENTRANT_API */
226 0         }
227            
228           void
229 0         Perl_reentrant_free(pTHX) {
230           #ifdef USE_REENTRANT_API
231           #ifdef HAS_ASCTIME_R
232           Safefree(PL_reentrant_buffer->_asctime_buffer);
233           #endif /* HAS_ASCTIME_R */
234           #ifdef HAS_CRYPT_R
235           #if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
236           Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
237           #endif
238           #endif /* HAS_CRYPT_R */
239           #ifdef HAS_CTIME_R
240           Safefree(PL_reentrant_buffer->_ctime_buffer);
241           #endif /* HAS_CTIME_R */
242           #ifdef HAS_DRAND48_R
243           #endif /* HAS_DRAND48_R */
244           #ifdef HAS_GETGRNAM_R
245           Safefree(PL_reentrant_buffer->_grent_buffer);
246           #endif /* HAS_GETGRNAM_R */
247           #ifdef HAS_GETHOSTBYNAME_R
248           #if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
249           Safefree(PL_reentrant_buffer->_hostent_buffer);
250           #endif
251           #endif /* HAS_GETHOSTBYNAME_R */
252           #ifdef HAS_GETLOGIN_R
253           Safefree(PL_reentrant_buffer->_getlogin_buffer);
254           #endif /* HAS_GETLOGIN_R */
255           #ifdef HAS_GETNETBYNAME_R
256           #if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
257           Safefree(PL_reentrant_buffer->_netent_buffer);
258           #endif
259           #endif /* HAS_GETNETBYNAME_R */
260           #ifdef HAS_GETPROTOBYNAME_R
261           #if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
262           Safefree(PL_reentrant_buffer->_protoent_buffer);
263           #endif
264           #endif /* HAS_GETPROTOBYNAME_R */
265           #ifdef HAS_GETPWNAM_R
266           Safefree(PL_reentrant_buffer->_pwent_buffer);
267           #endif /* HAS_GETPWNAM_R */
268           #ifdef HAS_GETSERVBYNAME_R
269           #if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
270           Safefree(PL_reentrant_buffer->_servent_buffer);
271           #endif
272           #endif /* HAS_GETSERVBYNAME_R */
273           #ifdef HAS_GETSPNAM_R
274           Safefree(PL_reentrant_buffer->_spent_buffer);
275           #endif /* HAS_GETSPNAM_R */
276           #ifdef HAS_RANDOM_R
277           #endif /* HAS_RANDOM_R */
278           #ifdef HAS_READDIR_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_SRANDOM_R
288           #endif /* HAS_SRANDOM_R */
289           #ifdef HAS_STRERROR_R
290           Safefree(PL_reentrant_buffer->_strerror_buffer);
291           #endif /* HAS_STRERROR_R */
292           #ifdef HAS_TTYNAME_R
293           Safefree(PL_reentrant_buffer->_ttyname_buffer);
294           #endif /* HAS_TTYNAME_R */
295            
296           Safefree(PL_reentrant_buffer);
297           #endif /* USE_REENTRANT_API */
298 0         }
299            
300           void*
301 0         Perl_reentrant_retry(const char *f, ...)
302           {
303           void *retptr = NULL;
304           va_list ap;
305           #ifdef USE_REENTRANT_API
306           dTHX;
307           /* Easier to special case this here than in embed.pl. (Look at what it
308           generates for proto.h) */
309           PERL_ARGS_ASSERT_REENTRANT_RETRY;
310           #endif
311 0         va_start(ap, f);
312           {
313           #ifdef USE_REENTRANT_API
314           # 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           void *p0;
316           # endif
317           # if defined(USE_SERVENT_BUFFER)
318           void *p1;
319           # endif
320           # if defined(USE_HOSTENT_BUFFER)
321           size_t asize;
322           # endif
323           # if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
324           int anint;
325           # endif
326            
327           switch (PL_op->op_type) {
328           #ifdef USE_HOSTENT_BUFFER
329           case OP_GHBYADDR:
330           case OP_GHBYNAME:
331           case OP_GHOSTENT:
332           {
333           #ifdef PERL_REENTRANT_MAXSIZE
334           if (PL_reentrant_buffer->_hostent_size <=
335           PERL_REENTRANT_MAXSIZE / 2)
336           #endif
337           {
338           PL_reentrant_buffer->_hostent_size *= 2;
339           Renew(PL_reentrant_buffer->_hostent_buffer,
340           PL_reentrant_buffer->_hostent_size, char);
341           switch (PL_op->op_type) {
342           case OP_GHBYADDR:
343           p0 = va_arg(ap, void *);
344           asize = va_arg(ap, size_t);
345           anint = va_arg(ap, int);
346           retptr = gethostbyaddr(p0, asize, anint); break;
347           case OP_GHBYNAME:
348           p0 = va_arg(ap, void *);
349           retptr = gethostbyname((char *)p0); break;
350           case OP_GHOSTENT:
351           retptr = gethostent(); break;
352           default:
353           SETERRNO(ERANGE, LIB_INVARG);
354           break;
355           }
356           }
357           }
358           break;
359           #endif
360           #ifdef USE_GRENT_BUFFER
361           case OP_GGRNAM:
362           case OP_GGRGID:
363           case OP_GGRENT:
364           {
365           #ifdef PERL_REENTRANT_MAXSIZE
366           if (PL_reentrant_buffer->_grent_size <=
367           PERL_REENTRANT_MAXSIZE / 2)
368           #endif
369           {
370           Gid_t gid;
371           PL_reentrant_buffer->_grent_size *= 2;
372           Renew(PL_reentrant_buffer->_grent_buffer,
373           PL_reentrant_buffer->_grent_size, char);
374           switch (PL_op->op_type) {
375           case OP_GGRNAM:
376           p0 = va_arg(ap, void *);
377           retptr = getgrnam((char *)p0); break;
378           case OP_GGRGID:
379           #if Gid_t_size < INTSIZE
380           gid = (Gid_t)va_arg(ap, int);
381           #else
382           gid = va_arg(ap, Gid_t);
383           #endif
384           retptr = getgrgid(gid); break;
385           case OP_GGRENT:
386           retptr = getgrent(); break;
387           default:
388           SETERRNO(ERANGE, LIB_INVARG);
389           break;
390           }
391           }
392           }
393           break;
394           #endif
395           #ifdef USE_NETENT_BUFFER
396           case OP_GNBYADDR:
397           case OP_GNBYNAME:
398           case OP_GNETENT:
399           {
400           #ifdef PERL_REENTRANT_MAXSIZE
401           if (PL_reentrant_buffer->_netent_size <=
402           PERL_REENTRANT_MAXSIZE / 2)
403           #endif
404           {
405           Netdb_net_t net;
406           PL_reentrant_buffer->_netent_size *= 2;
407           Renew(PL_reentrant_buffer->_netent_buffer,
408           PL_reentrant_buffer->_netent_size, char);
409           switch (PL_op->op_type) {
410           case OP_GNBYADDR:
411           net = va_arg(ap, Netdb_net_t);
412           anint = va_arg(ap, int);
413           retptr = getnetbyaddr(net, anint); break;
414           case OP_GNBYNAME:
415           p0 = va_arg(ap, void *);
416           retptr = getnetbyname((char *)p0); break;
417           case OP_GNETENT:
418           retptr = getnetent(); break;
419           default:
420           SETERRNO(ERANGE, LIB_INVARG);
421           break;
422           }
423           }
424           }
425           break;
426           #endif
427           #ifdef USE_PWENT_BUFFER
428           case OP_GPWNAM:
429           case OP_GPWUID:
430           case OP_GPWENT:
431           {
432           #ifdef PERL_REENTRANT_MAXSIZE
433           if (PL_reentrant_buffer->_pwent_size <=
434           PERL_REENTRANT_MAXSIZE / 2)
435           #endif
436           {
437           Uid_t uid;
438           PL_reentrant_buffer->_pwent_size *= 2;
439           Renew(PL_reentrant_buffer->_pwent_buffer,
440           PL_reentrant_buffer->_pwent_size, char);
441           switch (PL_op->op_type) {
442           case OP_GPWNAM:
443           p0 = va_arg(ap, void *);
444           retptr = getpwnam((char *)p0); break;
445           case OP_GPWUID:
446           #if Uid_t_size < INTSIZE
447           uid = (Uid_t)va_arg(ap, int);
448           #else
449           uid = va_arg(ap, Uid_t);
450           #endif
451           retptr = getpwuid(uid); break;
452           case OP_GPWENT:
453           retptr = getpwent(); break;
454           default:
455           SETERRNO(ERANGE, LIB_INVARG);
456           break;
457           }
458           }
459           }
460           break;
461           #endif
462           #ifdef USE_PROTOENT_BUFFER
463           case OP_GPBYNAME:
464           case OP_GPBYNUMBER:
465           case OP_GPROTOENT:
466           {
467           #ifdef PERL_REENTRANT_MAXSIZE
468           if (PL_reentrant_buffer->_protoent_size <=
469           PERL_REENTRANT_MAXSIZE / 2)
470           #endif
471           {
472           PL_reentrant_buffer->_protoent_size *= 2;
473           Renew(PL_reentrant_buffer->_protoent_buffer,
474           PL_reentrant_buffer->_protoent_size, char);
475           switch (PL_op->op_type) {
476           case OP_GPBYNAME:
477           p0 = va_arg(ap, void *);
478           retptr = getprotobyname((char *)p0); break;
479           case OP_GPBYNUMBER:
480           anint = va_arg(ap, int);
481           retptr = getprotobynumber(anint); break;
482           case OP_GPROTOENT:
483           retptr = getprotoent(); break;
484           default:
485           SETERRNO(ERANGE, LIB_INVARG);
486           break;
487           }
488           }
489           }
490           break;
491           #endif
492           #ifdef USE_SERVENT_BUFFER
493           case OP_GSBYNAME:
494           case OP_GSBYPORT:
495           case OP_GSERVENT:
496           {
497           #ifdef PERL_REENTRANT_MAXSIZE
498           if (PL_reentrant_buffer->_servent_size <=
499           PERL_REENTRANT_MAXSIZE / 2)
500           #endif
501           {
502           PL_reentrant_buffer->_servent_size *= 2;
503           Renew(PL_reentrant_buffer->_servent_buffer,
504           PL_reentrant_buffer->_servent_size, char);
505           switch (PL_op->op_type) {
506           case OP_GSBYNAME:
507           p0 = va_arg(ap, void *);
508           p1 = va_arg(ap, void *);
509           retptr = getservbyname((char *)p0, (char *)p1); break;
510           case OP_GSBYPORT:
511           anint = va_arg(ap, int);
512           p0 = va_arg(ap, void *);
513           retptr = getservbyport(anint, (char *)p0); break;
514           case OP_GSERVENT:
515           retptr = getservent(); break;
516           default:
517           SETERRNO(ERANGE, LIB_INVARG);
518           break;
519           }
520           }
521           }
522           break;
523           #endif
524           default:
525           /* Not known how to retry, so just fail. */
526           break;
527           }
528           #else
529           PERL_UNUSED_ARG(f);
530           #endif
531           }
532 0         va_end(ap);
533 0         return retptr;
534           }
535            
536           /* ex: set ro: */