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760ac839 |
1 | /* perlio.c |
2 | * |
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3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
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4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | #define VOIDUSED 1 |
12ae5dfc |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" |
13 | #else |
14 | # include "config.h" |
15 | #endif |
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16 | |
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17 | #define PERLIO_NOT_STDIO 0 |
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18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 |
19 | /* #define PerlIO FILE */ |
760ac839 |
20 | #endif |
21 | /* |
6f9d8c32 |
22 | * This file provides those parts of PerlIO abstraction |
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23 | * which are not #defined in iperlsys.h. |
6f9d8c32 |
24 | * Which these are depends on various Configure #ifdef's |
760ac839 |
25 | */ |
26 | |
27 | #include "EXTERN.h" |
864dbfa3 |
28 | #define PERL_IN_PERLIO_C |
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29 | #include "perl.h" |
30 | |
32e30700 |
31 | #if !defined(PERL_IMPLICIT_SYS) |
32 | |
6f9d8c32 |
33 | #ifdef PERLIO_IS_STDIO |
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34 | |
35 | void |
8ac85365 |
36 | PerlIO_init(void) |
760ac839 |
37 | { |
6f9d8c32 |
38 | /* Does nothing (yet) except force this file to be included |
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39 | in perl binary. That allows this file to force inclusion |
6f9d8c32 |
40 | of other functions that may be required by loadable |
41 | extensions e.g. for FileHandle::tmpfile |
760ac839 |
42 | */ |
43 | } |
44 | |
33dcbb9a |
45 | #undef PerlIO_tmpfile |
46 | PerlIO * |
8ac85365 |
47 | PerlIO_tmpfile(void) |
33dcbb9a |
48 | { |
49 | return tmpfile(); |
50 | } |
51 | |
760ac839 |
52 | #else /* PERLIO_IS_STDIO */ |
53 | |
54 | #ifdef USE_SFIO |
55 | |
56 | #undef HAS_FSETPOS |
57 | #undef HAS_FGETPOS |
58 | |
6f9d8c32 |
59 | /* This section is just to make sure these functions |
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60 | get pulled in from libsfio.a |
61 | */ |
62 | |
63 | #undef PerlIO_tmpfile |
64 | PerlIO * |
c78749f2 |
65 | PerlIO_tmpfile(void) |
760ac839 |
66 | { |
67 | return sftmp(0); |
68 | } |
69 | |
70 | void |
c78749f2 |
71 | PerlIO_init(void) |
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72 | { |
6f9d8c32 |
73 | /* Force this file to be included in perl binary. Which allows |
74 | * this file to force inclusion of other functions that may be |
75 | * required by loadable extensions e.g. for FileHandle::tmpfile |
760ac839 |
76 | */ |
77 | |
78 | /* Hack |
79 | * sfio does its own 'autoflush' on stdout in common cases. |
6f9d8c32 |
80 | * Flush results in a lot of lseek()s to regular files and |
760ac839 |
81 | * lot of small writes to pipes. |
82 | */ |
83 | sfset(sfstdout,SF_SHARE,0); |
84 | } |
85 | |
17c3b450 |
86 | #else /* USE_SFIO */ |
6f9d8c32 |
87 | /*======================================================================================*/ |
6f9d8c32 |
88 | /* Implement all the PerlIO interface ourselves. |
9e353e3b |
89 | */ |
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90 | |
76ced9ad |
91 | #include "perliol.h" |
92 | |
b1ef6e3b |
93 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f |
94 | #ifdef I_UNISTD |
95 | #include <unistd.h> |
96 | #endif |
06da4f11 |
97 | #ifdef HAS_MMAP |
98 | #include <sys/mman.h> |
99 | #endif |
100 | |
f3862f8b |
101 | #include "XSUB.h" |
02f66e2f |
102 | |
76ced9ad |
103 | void PerlIO_debug(char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 |
104 | |
6f9d8c32 |
105 | void |
106 | PerlIO_debug(char *fmt,...) |
107 | { |
108 | static int dbg = 0; |
109 | if (!dbg) |
110 | { |
00b02797 |
111 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 |
112 | if (s && *s) |
00b02797 |
113 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 |
114 | else |
115 | dbg = -1; |
116 | } |
117 | if (dbg > 0) |
118 | { |
119 | dTHX; |
120 | va_list ap; |
121 | SV *sv = newSVpvn("",0); |
122 | char *s; |
123 | STRLEN len; |
124 | va_start(ap,fmt); |
05d1247b |
125 | s = CopFILE(PL_curcop); |
126 | if (!s) |
127 | s = "(none)"; |
128 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); |
c7fc522f |
129 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
130 | |
6f9d8c32 |
131 | s = SvPV(sv,len); |
00b02797 |
132 | PerlLIO_write(dbg,s,len); |
6f9d8c32 |
133 | va_end(ap); |
134 | SvREFCNT_dec(sv); |
135 | } |
136 | } |
137 | |
9e353e3b |
138 | /*--------------------------------------------------------------------------------------*/ |
139 | |
9e353e3b |
140 | /* Inner level routines */ |
141 | |
b1ef6e3b |
142 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b |
143 | PerlIO *_perlio = NULL; |
144 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 |
145 | |
760ac839 |
146 | PerlIO * |
6f9d8c32 |
147 | PerlIO_allocate(void) |
148 | { |
f3862f8b |
149 | /* Find a free slot in the table, allocating new table as necessary */ |
05d1247b |
150 | PerlIO **last = &_perlio; |
6f9d8c32 |
151 | PerlIO *f; |
05d1247b |
152 | while ((f = *last)) |
6f9d8c32 |
153 | { |
05d1247b |
154 | int i; |
155 | last = (PerlIO **)(f); |
156 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
6f9d8c32 |
157 | { |
05d1247b |
158 | if (!*++f) |
6f9d8c32 |
159 | { |
6f9d8c32 |
160 | return f; |
161 | } |
6f9d8c32 |
162 | } |
6f9d8c32 |
163 | } |
05d1247b |
164 | Newz('I',f,PERLIO_TABLE_SIZE,PerlIO); |
165 | if (!f) |
166 | return NULL; |
167 | *last = f; |
168 | return f+1; |
169 | } |
170 | |
171 | void |
172 | PerlIO_cleantable(PerlIO **tablep) |
173 | { |
174 | PerlIO *table = *tablep; |
175 | if (table) |
176 | { |
177 | int i; |
178 | PerlIO_cleantable((PerlIO **) &(table[0])); |
179 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
180 | { |
181 | PerlIO *f = table+i; |
182 | if (*f) |
183 | PerlIO_close(f); |
184 | } |
185 | Safefree(table); |
186 | *tablep = NULL; |
187 | } |
188 | } |
189 | |
4a4a6116 |
190 | HV *PerlIO_layer_hv; |
191 | AV *PerlIO_layer_av; |
192 | |
05d1247b |
193 | void |
194 | PerlIO_cleanup(void) |
195 | { |
196 | PerlIO_cleantable(&_perlio); |
6f9d8c32 |
197 | } |
198 | |
9e353e3b |
199 | void |
200 | PerlIO_pop(PerlIO *f) |
760ac839 |
201 | { |
9e353e3b |
202 | PerlIOl *l = *f; |
203 | if (l) |
6f9d8c32 |
204 | { |
06da4f11 |
205 | (*l->tab->Popped)(f); |
9e353e3b |
206 | *f = l->next; |
207 | Safefree(l); |
6f9d8c32 |
208 | } |
6f9d8c32 |
209 | } |
210 | |
9e353e3b |
211 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 |
212 | /* XS Interface for perl code */ |
9e353e3b |
213 | |
b931b1d9 |
214 | XS(XS_perlio_import) |
f3862f8b |
215 | { |
216 | dXSARGS; |
217 | GV *gv = CvGV(cv); |
218 | char *s = GvNAME(gv); |
219 | STRLEN l = GvNAMELEN(gv); |
220 | PerlIO_debug("%.*s\n",(int) l,s); |
221 | XSRETURN_EMPTY; |
222 | } |
223 | |
b931b1d9 |
224 | XS(XS_perlio_unimport) |
f3862f8b |
225 | { |
226 | dXSARGS; |
227 | GV *gv = CvGV(cv); |
228 | char *s = GvNAME(gv); |
229 | STRLEN l = GvNAMELEN(gv); |
230 | PerlIO_debug("%.*s\n",(int) l,s); |
231 | XSRETURN_EMPTY; |
232 | } |
233 | |
f3862f8b |
234 | SV * |
235 | PerlIO_find_layer(char *name, STRLEN len) |
236 | { |
237 | dTHX; |
238 | SV **svp; |
239 | SV *sv; |
240 | if (len <= 0) |
241 | len = strlen(name); |
242 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); |
243 | if (svp && (sv = *svp) && SvROK(sv)) |
244 | return *svp; |
245 | return NULL; |
246 | } |
247 | |
b13b2135 |
248 | |
249 | static int |
250 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) |
251 | { |
252 | if (SvROK(sv)) |
253 | { |
b931b1d9 |
254 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 |
255 | PerlIO *ifp = IoIFP(io); |
256 | PerlIO *ofp = IoOFP(io); |
257 | AV *av = (AV *) mg->mg_obj; |
258 | Perl_warn(aTHX_ "set %_ %p %p %p",sv,io,ifp,ofp); |
259 | } |
260 | return 0; |
261 | } |
262 | |
263 | static int |
264 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) |
265 | { |
266 | if (SvROK(sv)) |
267 | { |
b931b1d9 |
268 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 |
269 | PerlIO *ifp = IoIFP(io); |
270 | PerlIO *ofp = IoOFP(io); |
271 | AV *av = (AV *) mg->mg_obj; |
272 | Perl_warn(aTHX_ "get %_ %p %p %p",sv,io,ifp,ofp); |
273 | } |
274 | return 0; |
275 | } |
276 | |
277 | static int |
278 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) |
279 | { |
280 | Perl_warn(aTHX_ "clear %_",sv); |
281 | return 0; |
282 | } |
283 | |
284 | static int |
285 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) |
286 | { |
287 | Perl_warn(aTHX_ "free %_",sv); |
288 | return 0; |
289 | } |
290 | |
291 | MGVTBL perlio_vtab = { |
292 | perlio_mg_get, |
293 | perlio_mg_set, |
294 | NULL, /* len */ |
295 | NULL, |
296 | perlio_mg_free |
297 | }; |
298 | |
299 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) |
300 | { |
301 | dXSARGS; |
302 | SV *sv = SvRV(ST(1)); |
303 | AV *av = newAV(); |
304 | MAGIC *mg; |
305 | int count = 0; |
306 | int i; |
307 | sv_magic(sv, (SV *)av, '~', NULL, 0); |
308 | SvRMAGICAL_off(sv); |
309 | mg = mg_find(sv,'~'); |
310 | mg->mg_virtual = &perlio_vtab; |
311 | mg_magical(sv); |
312 | Perl_warn(aTHX_ "attrib %_",sv); |
313 | for (i=2; i < items; i++) |
314 | { |
315 | STRLEN len; |
316 | char *name = SvPV(ST(i),len); |
317 | SV *layer = PerlIO_find_layer(name,len); |
318 | if (layer) |
319 | { |
320 | av_push(av,SvREFCNT_inc(layer)); |
321 | } |
322 | else |
323 | { |
324 | ST(count) = ST(i); |
325 | count++; |
326 | } |
327 | } |
328 | SvREFCNT_dec(av); |
329 | XSRETURN(count); |
330 | } |
331 | |
f3862f8b |
332 | void |
333 | PerlIO_define_layer(PerlIO_funcs *tab) |
334 | { |
335 | dTHX; |
b931b1d9 |
336 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 |
337 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b |
338 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
339 | } |
340 | |
341 | PerlIO_funcs * |
342 | PerlIO_default_layer(I32 n) |
343 | { |
344 | dTHX; |
345 | SV **svp; |
346 | SV *layer; |
347 | PerlIO_funcs *tab = &PerlIO_stdio; |
348 | int len; |
349 | if (!PerlIO_layer_hv) |
350 | { |
00b02797 |
351 | char *s = PerlEnv_getenv("PERLIO"); |
b931b1d9 |
352 | newXS("perlio::import",XS_perlio_import,__FILE__); |
353 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); |
354 | #if 0 |
b13b2135 |
355 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 |
356 | #endif |
357 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); |
358 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); |
f3862f8b |
359 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b |
360 | PerlIO_define_layer(&PerlIO_perlio); |
361 | PerlIO_define_layer(&PerlIO_stdio); |
06da4f11 |
362 | #ifdef HAS_MMAP |
363 | PerlIO_define_layer(&PerlIO_mmap); |
364 | #endif |
f3862f8b |
365 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
366 | if (s) |
367 | { |
368 | while (*s) |
369 | { |
00b02797 |
370 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b |
371 | s++; |
372 | if (*s) |
373 | { |
374 | char *e = s; |
375 | SV *layer; |
00b02797 |
376 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b |
377 | e++; |
378 | layer = PerlIO_find_layer(s,e-s); |
379 | if (layer) |
380 | { |
381 | PerlIO_debug("Pushing %.*s\n",(e-s),s); |
382 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); |
383 | } |
384 | else |
ef0f9817 |
385 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b |
386 | s = e; |
387 | } |
388 | } |
389 | } |
390 | } |
391 | len = av_len(PerlIO_layer_av); |
392 | if (len < 1) |
393 | { |
394 | if (PerlIO_stdio.Set_ptrcnt) |
395 | { |
396 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); |
397 | } |
398 | else |
399 | { |
400 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); |
401 | } |
402 | len = av_len(PerlIO_layer_av); |
403 | } |
404 | if (n < 0) |
405 | n += len+1; |
406 | svp = av_fetch(PerlIO_layer_av,n,0); |
407 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) |
408 | { |
e7778b43 |
409 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b |
410 | } |
411 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ |
412 | return tab; |
413 | } |
414 | |
415 | #define PerlIO_default_top() PerlIO_default_layer(-1) |
416 | #define PerlIO_default_btm() PerlIO_default_layer(0) |
417 | |
418 | void |
419 | PerlIO_stdstreams() |
420 | { |
421 | if (!_perlio) |
422 | { |
423 | PerlIO_allocate(); |
424 | PerlIO_fdopen(0,"Ir"); |
425 | PerlIO_fdopen(1,"Iw"); |
426 | PerlIO_fdopen(2,"Iw"); |
427 | } |
428 | } |
9e353e3b |
429 | |
76ced9ad |
430 | PerlIO * |
431 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) |
432 | { |
433 | PerlIOl *l = NULL; |
434 | Newc('L',l,tab->size,char,PerlIOl); |
435 | if (l) |
436 | { |
437 | Zero(l,tab->size,char); |
438 | l->next = *f; |
439 | l->tab = tab; |
440 | *f = l; |
441 | if ((*l->tab->Pushed)(f,mode) != 0) |
442 | { |
443 | PerlIO_pop(f); |
444 | return NULL; |
445 | } |
446 | } |
447 | return f; |
448 | } |
449 | |
b931b1d9 |
450 | /*--------------------------------------------------------------------------------------*/ |
451 | /* Given the abstraction above the public API functions */ |
452 | |
453 | #undef PerlIO_close |
454 | int |
455 | PerlIO_close(PerlIO *f) |
456 | { |
457 | int code = (*PerlIOBase(f)->tab->Close)(f); |
458 | while (*f) |
459 | { |
460 | PerlIO_pop(f); |
461 | } |
462 | return code; |
463 | } |
464 | |
465 | #undef PerlIO_fileno |
466 | int |
467 | PerlIO_fileno(PerlIO *f) |
468 | { |
469 | return (*PerlIOBase(f)->tab->Fileno)(f); |
470 | } |
471 | |
472 | |
473 | |
9e353e3b |
474 | #undef PerlIO_fdopen |
475 | PerlIO * |
476 | PerlIO_fdopen(int fd, const char *mode) |
477 | { |
478 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
479 | if (!_perlio) |
480 | PerlIO_stdstreams(); |
06da4f11 |
481 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b |
482 | } |
483 | |
6f9d8c32 |
484 | #undef PerlIO_open |
485 | PerlIO * |
486 | PerlIO_open(const char *path, const char *mode) |
487 | { |
9e353e3b |
488 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
489 | if (!_perlio) |
490 | PerlIO_stdstreams(); |
06da4f11 |
491 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 |
492 | } |
493 | |
9e353e3b |
494 | #undef PerlIO_reopen |
495 | PerlIO * |
496 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) |
6f9d8c32 |
497 | { |
9e353e3b |
498 | if (f) |
6f9d8c32 |
499 | { |
9e353e3b |
500 | PerlIO_flush(f); |
501 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) |
502 | { |
06da4f11 |
503 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0) |
504 | return f; |
9e353e3b |
505 | } |
506 | return NULL; |
6f9d8c32 |
507 | } |
9e353e3b |
508 | else |
509 | return PerlIO_open(path,mode); |
760ac839 |
510 | } |
511 | |
9e353e3b |
512 | #undef PerlIO_read |
513 | SSize_t |
514 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
515 | { |
9e353e3b |
516 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 |
517 | } |
518 | |
313ca112 |
519 | #undef PerlIO_unread |
520 | SSize_t |
521 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
522 | { |
313ca112 |
523 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 |
524 | } |
525 | |
9e353e3b |
526 | #undef PerlIO_write |
527 | SSize_t |
528 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
529 | { |
9e353e3b |
530 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 |
531 | } |
532 | |
9e353e3b |
533 | #undef PerlIO_seek |
6f9d8c32 |
534 | int |
9e353e3b |
535 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 |
536 | { |
9e353e3b |
537 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 |
538 | } |
539 | |
9e353e3b |
540 | #undef PerlIO_tell |
541 | Off_t |
542 | PerlIO_tell(PerlIO *f) |
760ac839 |
543 | { |
9e353e3b |
544 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 |
545 | } |
546 | |
9e353e3b |
547 | #undef PerlIO_flush |
6f9d8c32 |
548 | int |
9e353e3b |
549 | PerlIO_flush(PerlIO *f) |
760ac839 |
550 | { |
6f9d8c32 |
551 | if (f) |
552 | { |
9e353e3b |
553 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 |
554 | } |
9e353e3b |
555 | else |
6f9d8c32 |
556 | { |
05d1247b |
557 | PerlIO **table = &_perlio; |
9e353e3b |
558 | int code = 0; |
05d1247b |
559 | while ((f = *table)) |
6f9d8c32 |
560 | { |
05d1247b |
561 | int i; |
562 | table = (PerlIO **)(f++); |
563 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
9e353e3b |
564 | { |
565 | if (*f && PerlIO_flush(f) != 0) |
566 | code = -1; |
05d1247b |
567 | f++; |
9e353e3b |
568 | } |
6f9d8c32 |
569 | } |
9e353e3b |
570 | return code; |
6f9d8c32 |
571 | } |
760ac839 |
572 | } |
573 | |
06da4f11 |
574 | #undef PerlIO_fill |
575 | int |
576 | PerlIO_fill(PerlIO *f) |
577 | { |
578 | return (*PerlIOBase(f)->tab->Fill)(f); |
579 | } |
580 | |
f3862f8b |
581 | #undef PerlIO_isutf8 |
582 | int |
583 | PerlIO_isutf8(PerlIO *f) |
584 | { |
585 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; |
586 | } |
587 | |
9e353e3b |
588 | #undef PerlIO_eof |
6f9d8c32 |
589 | int |
9e353e3b |
590 | PerlIO_eof(PerlIO *f) |
760ac839 |
591 | { |
9e353e3b |
592 | return (*PerlIOBase(f)->tab->Eof)(f); |
593 | } |
594 | |
595 | #undef PerlIO_error |
596 | int |
597 | PerlIO_error(PerlIO *f) |
598 | { |
599 | return (*PerlIOBase(f)->tab->Error)(f); |
600 | } |
601 | |
602 | #undef PerlIO_clearerr |
603 | void |
604 | PerlIO_clearerr(PerlIO *f) |
605 | { |
606 | (*PerlIOBase(f)->tab->Clearerr)(f); |
607 | } |
608 | |
609 | #undef PerlIO_setlinebuf |
610 | void |
611 | PerlIO_setlinebuf(PerlIO *f) |
612 | { |
613 | (*PerlIOBase(f)->tab->Setlinebuf)(f); |
614 | } |
615 | |
616 | #undef PerlIO_has_base |
617 | int |
618 | PerlIO_has_base(PerlIO *f) |
619 | { |
620 | if (f && *f) |
6f9d8c32 |
621 | { |
9e353e3b |
622 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 |
623 | } |
9e353e3b |
624 | return 0; |
760ac839 |
625 | } |
626 | |
9e353e3b |
627 | #undef PerlIO_fast_gets |
628 | int |
629 | PerlIO_fast_gets(PerlIO *f) |
760ac839 |
630 | { |
9e353e3b |
631 | if (f && *f) |
6f9d8c32 |
632 | { |
c7fc522f |
633 | PerlIOl *l = PerlIOBase(f); |
634 | return (l->tab->Set_ptrcnt != NULL); |
6f9d8c32 |
635 | } |
9e353e3b |
636 | return 0; |
637 | } |
638 | |
639 | #undef PerlIO_has_cntptr |
640 | int |
641 | PerlIO_has_cntptr(PerlIO *f) |
642 | { |
643 | if (f && *f) |
644 | { |
645 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
646 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); |
647 | } |
648 | return 0; |
649 | } |
650 | |
651 | #undef PerlIO_canset_cnt |
652 | int |
653 | PerlIO_canset_cnt(PerlIO *f) |
654 | { |
655 | if (f && *f) |
656 | { |
c7fc522f |
657 | PerlIOl *l = PerlIOBase(f); |
658 | return (l->tab->Set_ptrcnt != NULL); |
9e353e3b |
659 | } |
c7fc522f |
660 | return 0; |
760ac839 |
661 | } |
662 | |
663 | #undef PerlIO_get_base |
888911fc |
664 | STDCHAR * |
a20bf0c3 |
665 | PerlIO_get_base(PerlIO *f) |
760ac839 |
666 | { |
9e353e3b |
667 | return (*PerlIOBase(f)->tab->Get_base)(f); |
668 | } |
669 | |
670 | #undef PerlIO_get_bufsiz |
671 | int |
672 | PerlIO_get_bufsiz(PerlIO *f) |
673 | { |
674 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); |
675 | } |
676 | |
677 | #undef PerlIO_get_ptr |
678 | STDCHAR * |
679 | PerlIO_get_ptr(PerlIO *f) |
680 | { |
681 | return (*PerlIOBase(f)->tab->Get_ptr)(f); |
682 | } |
683 | |
684 | #undef PerlIO_get_cnt |
05d1247b |
685 | int |
9e353e3b |
686 | PerlIO_get_cnt(PerlIO *f) |
687 | { |
688 | return (*PerlIOBase(f)->tab->Get_cnt)(f); |
689 | } |
690 | |
691 | #undef PerlIO_set_cnt |
692 | void |
05d1247b |
693 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b |
694 | { |
f3862f8b |
695 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b |
696 | } |
697 | |
698 | #undef PerlIO_set_ptrcnt |
699 | void |
05d1247b |
700 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b |
701 | { |
f3862f8b |
702 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b |
703 | } |
704 | |
705 | /*--------------------------------------------------------------------------------------*/ |
706 | /* "Methods" of the "base class" */ |
707 | |
708 | IV |
709 | PerlIOBase_fileno(PerlIO *f) |
710 | { |
711 | return PerlIO_fileno(PerlIONext(f)); |
712 | } |
713 | |
76ced9ad |
714 | IV |
715 | PerlIOBase_pushed(PerlIO *f, const char *mode) |
9e353e3b |
716 | { |
76ced9ad |
717 | PerlIOl *l = PerlIOBase(f); |
718 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
719 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); |
720 | if (mode) |
6f9d8c32 |
721 | { |
76ced9ad |
722 | switch (*mode++) |
06da4f11 |
723 | { |
76ced9ad |
724 | case 'r': |
725 | l->flags = PERLIO_F_CANREAD; |
726 | break; |
727 | case 'a': |
728 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
729 | break; |
730 | case 'w': |
731 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
732 | break; |
733 | default: |
734 | errno = EINVAL; |
735 | return -1; |
736 | } |
737 | while (*mode) |
738 | { |
739 | switch (*mode++) |
740 | { |
741 | case '+': |
742 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; |
743 | break; |
744 | case 'b': |
745 | l->flags |= PERLIO_F_BINARY; |
746 | break; |
747 | default: |
748 | errno = EINVAL; |
749 | return -1; |
750 | } |
06da4f11 |
751 | } |
6f9d8c32 |
752 | } |
76ced9ad |
753 | else |
754 | { |
755 | if (l->next) |
756 | { |
757 | l->flags |= l->next->flags & |
758 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
759 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); |
760 | } |
761 | } |
762 | return 0; |
763 | } |
764 | |
765 | IV |
766 | PerlIOBase_popped(PerlIO *f) |
767 | { |
768 | return 0; |
760ac839 |
769 | } |
770 | |
9e353e3b |
771 | SSize_t |
772 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) |
773 | { |
774 | Off_t old = PerlIO_tell(f); |
775 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) |
776 | { |
777 | Off_t new = PerlIO_tell(f); |
778 | return old - new; |
779 | } |
780 | return 0; |
781 | } |
782 | |
783 | IV |
06da4f11 |
784 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b |
785 | { |
786 | return 0; |
787 | } |
788 | |
789 | IV |
06da4f11 |
790 | PerlIOBase_noop_fail(PerlIO *f) |
791 | { |
792 | return -1; |
793 | } |
794 | |
795 | IV |
9e353e3b |
796 | PerlIOBase_close(PerlIO *f) |
797 | { |
798 | IV code = 0; |
799 | if (PerlIO_flush(f) != 0) |
800 | code = -1; |
801 | if (PerlIO_close(PerlIONext(f)) != 0) |
802 | code = -1; |
803 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); |
804 | return code; |
805 | } |
806 | |
807 | IV |
808 | PerlIOBase_eof(PerlIO *f) |
809 | { |
810 | if (f && *f) |
811 | { |
812 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; |
813 | } |
814 | return 1; |
815 | } |
816 | |
817 | IV |
818 | PerlIOBase_error(PerlIO *f) |
819 | { |
820 | if (f && *f) |
821 | { |
822 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; |
823 | } |
824 | return 1; |
825 | } |
826 | |
827 | void |
828 | PerlIOBase_clearerr(PerlIO *f) |
829 | { |
830 | if (f && *f) |
831 | { |
832 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; |
833 | } |
834 | } |
835 | |
836 | void |
837 | PerlIOBase_setlinebuf(PerlIO *f) |
838 | { |
839 | |
840 | } |
841 | |
9e353e3b |
842 | /*--------------------------------------------------------------------------------------*/ |
843 | /* Bottom-most level for UNIX-like case */ |
844 | |
845 | typedef struct |
846 | { |
847 | struct _PerlIO base; /* The generic part */ |
848 | int fd; /* UNIX like file descriptor */ |
849 | int oflags; /* open/fcntl flags */ |
850 | } PerlIOUnix; |
851 | |
6f9d8c32 |
852 | int |
9e353e3b |
853 | PerlIOUnix_oflags(const char *mode) |
760ac839 |
854 | { |
9e353e3b |
855 | int oflags = -1; |
856 | switch(*mode) |
857 | { |
858 | case 'r': |
859 | oflags = O_RDONLY; |
860 | if (*++mode == '+') |
861 | { |
862 | oflags = O_RDWR; |
863 | mode++; |
864 | } |
865 | break; |
866 | |
867 | case 'w': |
868 | oflags = O_CREAT|O_TRUNC; |
869 | if (*++mode == '+') |
870 | { |
871 | oflags |= O_RDWR; |
872 | mode++; |
873 | } |
874 | else |
875 | oflags |= O_WRONLY; |
876 | break; |
877 | |
878 | case 'a': |
879 | oflags = O_CREAT|O_APPEND; |
880 | if (*++mode == '+') |
881 | { |
882 | oflags |= O_RDWR; |
883 | mode++; |
884 | } |
885 | else |
886 | oflags |= O_WRONLY; |
887 | break; |
888 | } |
889 | if (*mode || oflags == -1) |
6f9d8c32 |
890 | { |
9e353e3b |
891 | errno = EINVAL; |
892 | oflags = -1; |
6f9d8c32 |
893 | } |
9e353e3b |
894 | return oflags; |
895 | } |
896 | |
897 | IV |
898 | PerlIOUnix_fileno(PerlIO *f) |
899 | { |
900 | return PerlIOSelf(f,PerlIOUnix)->fd; |
901 | } |
902 | |
903 | PerlIO * |
06da4f11 |
904 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b |
905 | { |
906 | PerlIO *f = NULL; |
c7fc522f |
907 | if (*mode == 'I') |
908 | mode++; |
9e353e3b |
909 | if (fd >= 0) |
910 | { |
911 | int oflags = PerlIOUnix_oflags(mode); |
912 | if (oflags != -1) |
913 | { |
06da4f11 |
914 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b |
915 | s->fd = fd; |
916 | s->oflags = oflags; |
917 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
918 | } |
919 | } |
920 | return f; |
921 | } |
922 | |
923 | PerlIO * |
06da4f11 |
924 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b |
925 | { |
926 | PerlIO *f = NULL; |
927 | int oflags = PerlIOUnix_oflags(mode); |
928 | if (oflags != -1) |
929 | { |
00b02797 |
930 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b |
931 | if (fd >= 0) |
932 | { |
06da4f11 |
933 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b |
934 | s->fd = fd; |
935 | s->oflags = oflags; |
936 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
937 | } |
938 | } |
939 | return f; |
760ac839 |
940 | } |
941 | |
760ac839 |
942 | int |
9e353e3b |
943 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 |
944 | { |
9e353e3b |
945 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
946 | int oflags = PerlIOUnix_oflags(mode); |
947 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
948 | (*PerlIOBase(f)->tab->Close)(f); |
949 | if (oflags != -1) |
950 | { |
00b02797 |
951 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b |
952 | if (fd >= 0) |
953 | { |
954 | s->fd = fd; |
955 | s->oflags = oflags; |
956 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
957 | return 0; |
958 | } |
959 | } |
960 | return -1; |
961 | } |
962 | |
963 | SSize_t |
964 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) |
965 | { |
966 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 |
967 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
968 | return 0; |
9e353e3b |
969 | while (1) |
970 | { |
00b02797 |
971 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b |
972 | if (len >= 0 || errno != EINTR) |
06da4f11 |
973 | { |
974 | if (len < 0) |
975 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
976 | else if (len == 0 && count != 0) |
977 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
978 | return len; |
979 | } |
9e353e3b |
980 | } |
981 | } |
982 | |
983 | SSize_t |
984 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) |
985 | { |
986 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
987 | while (1) |
988 | { |
00b02797 |
989 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b |
990 | if (len >= 0 || errno != EINTR) |
06da4f11 |
991 | { |
992 | if (len < 0) |
993 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
994 | return len; |
995 | } |
9e353e3b |
996 | } |
997 | } |
998 | |
999 | IV |
1000 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) |
1001 | { |
00b02797 |
1002 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 |
1003 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b |
1004 | return (new == (Off_t) -1) ? -1 : 0; |
1005 | } |
1006 | |
1007 | Off_t |
1008 | PerlIOUnix_tell(PerlIO *f) |
1009 | { |
00b02797 |
1010 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b |
1011 | } |
1012 | |
1013 | IV |
1014 | PerlIOUnix_close(PerlIO *f) |
1015 | { |
1016 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1017 | int code = 0; |
00b02797 |
1018 | while (PerlLIO_close(fd) != 0) |
9e353e3b |
1019 | { |
1020 | if (errno != EINTR) |
1021 | { |
1022 | code = -1; |
1023 | break; |
1024 | } |
1025 | } |
1026 | if (code == 0) |
1027 | { |
1028 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
1029 | } |
1030 | return code; |
1031 | } |
1032 | |
1033 | PerlIO_funcs PerlIO_unix = { |
1034 | "unix", |
1035 | sizeof(PerlIOUnix), |
1036 | 0, |
1037 | PerlIOUnix_fileno, |
1038 | PerlIOUnix_fdopen, |
1039 | PerlIOUnix_open, |
1040 | PerlIOUnix_reopen, |
06da4f11 |
1041 | PerlIOBase_pushed, |
1042 | PerlIOBase_noop_ok, |
9e353e3b |
1043 | PerlIOUnix_read, |
1044 | PerlIOBase_unread, |
1045 | PerlIOUnix_write, |
1046 | PerlIOUnix_seek, |
1047 | PerlIOUnix_tell, |
1048 | PerlIOUnix_close, |
76ced9ad |
1049 | PerlIOBase_noop_ok, /* flush */ |
1050 | PerlIOBase_noop_fail, /* fill */ |
9e353e3b |
1051 | PerlIOBase_eof, |
1052 | PerlIOBase_error, |
1053 | PerlIOBase_clearerr, |
1054 | PerlIOBase_setlinebuf, |
1055 | NULL, /* get_base */ |
1056 | NULL, /* get_bufsiz */ |
1057 | NULL, /* get_ptr */ |
1058 | NULL, /* get_cnt */ |
1059 | NULL, /* set_ptrcnt */ |
1060 | }; |
1061 | |
1062 | /*--------------------------------------------------------------------------------------*/ |
1063 | /* stdio as a layer */ |
1064 | |
1065 | typedef struct |
1066 | { |
1067 | struct _PerlIO base; |
1068 | FILE * stdio; /* The stream */ |
1069 | } PerlIOStdio; |
1070 | |
1071 | IV |
1072 | PerlIOStdio_fileno(PerlIO *f) |
1073 | { |
1074 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
1075 | } |
1076 | |
1077 | |
1078 | PerlIO * |
06da4f11 |
1079 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b |
1080 | { |
1081 | PerlIO *f = NULL; |
c7fc522f |
1082 | int init = 0; |
1083 | if (*mode == 'I') |
1084 | { |
1085 | init = 1; |
1086 | mode++; |
1087 | } |
9e353e3b |
1088 | if (fd >= 0) |
1089 | { |
c7fc522f |
1090 | FILE *stdio = NULL; |
1091 | if (init) |
1092 | { |
1093 | switch(fd) |
1094 | { |
1095 | case 0: |
1096 | stdio = stdin; |
1097 | break; |
1098 | case 1: |
1099 | stdio = stdout; |
1100 | break; |
1101 | case 2: |
1102 | stdio = stderr; |
1103 | break; |
1104 | } |
1105 | } |
1106 | else |
1107 | stdio = fdopen(fd,mode); |
9e353e3b |
1108 | if (stdio) |
1109 | { |
06da4f11 |
1110 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b |
1111 | s->stdio = stdio; |
1112 | } |
1113 | } |
1114 | return f; |
1115 | } |
1116 | |
1117 | #undef PerlIO_importFILE |
1118 | PerlIO * |
1119 | PerlIO_importFILE(FILE *stdio, int fl) |
1120 | { |
1121 | PerlIO *f = NULL; |
1122 | if (stdio) |
1123 | { |
1124 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); |
1125 | s->stdio = stdio; |
1126 | } |
1127 | return f; |
1128 | } |
1129 | |
1130 | PerlIO * |
06da4f11 |
1131 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b |
1132 | { |
1133 | PerlIO *f = NULL; |
1134 | FILE *stdio = fopen(path,mode); |
1135 | if (stdio) |
1136 | { |
06da4f11 |
1137 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b |
1138 | s->stdio = stdio; |
1139 | } |
1140 | return f; |
760ac839 |
1141 | } |
1142 | |
6f9d8c32 |
1143 | int |
9e353e3b |
1144 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1145 | { |
1146 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
1147 | FILE *stdio = freopen(path,mode,s->stdio); |
1148 | if (!s->stdio) |
1149 | return -1; |
1150 | s->stdio = stdio; |
1151 | return 0; |
1152 | } |
1153 | |
1154 | SSize_t |
1155 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) |
1156 | { |
1157 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f |
1158 | SSize_t got = 0; |
9e353e3b |
1159 | if (count == 1) |
1160 | { |
1161 | STDCHAR *buf = (STDCHAR *) vbuf; |
1162 | /* Perl is expecting PerlIO_getc() to fill the buffer |
1163 | * Linux's stdio does not do that for fread() |
1164 | */ |
1165 | int ch = fgetc(s); |
1166 | if (ch != EOF) |
1167 | { |
1168 | *buf = ch; |
c7fc522f |
1169 | got = 1; |
9e353e3b |
1170 | } |
9e353e3b |
1171 | } |
c7fc522f |
1172 | else |
1173 | got = fread(vbuf,1,count,s); |
1174 | return got; |
9e353e3b |
1175 | } |
1176 | |
1177 | SSize_t |
1178 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) |
1179 | { |
1180 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
1181 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; |
1182 | SSize_t unread = 0; |
1183 | while (count > 0) |
1184 | { |
1185 | int ch = *buf-- & 0xff; |
1186 | if (ungetc(ch,s) != ch) |
1187 | break; |
1188 | unread++; |
1189 | count--; |
1190 | } |
1191 | return unread; |
1192 | } |
1193 | |
1194 | SSize_t |
1195 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) |
1196 | { |
1197 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
1198 | } |
1199 | |
1200 | IV |
1201 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) |
1202 | { |
c7fc522f |
1203 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1204 | return fseek(stdio,offset,whence); |
9e353e3b |
1205 | } |
1206 | |
1207 | Off_t |
1208 | PerlIOStdio_tell(PerlIO *f) |
1209 | { |
c7fc522f |
1210 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1211 | return ftell(stdio); |
9e353e3b |
1212 | } |
1213 | |
1214 | IV |
1215 | PerlIOStdio_close(PerlIO *f) |
1216 | { |
1217 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); |
1218 | } |
1219 | |
1220 | IV |
1221 | PerlIOStdio_flush(PerlIO *f) |
1222 | { |
1223 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1224 | return fflush(stdio); |
1225 | } |
1226 | |
1227 | IV |
06da4f11 |
1228 | PerlIOStdio_fill(PerlIO *f) |
1229 | { |
1230 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1231 | int c; |
1232 | if (fflush(stdio) != 0) |
1233 | return EOF; |
1234 | c = fgetc(stdio); |
1235 | if (c == EOF || ungetc(c,stdio) != c) |
1236 | return EOF; |
1237 | return 0; |
1238 | } |
1239 | |
1240 | IV |
9e353e3b |
1241 | PerlIOStdio_eof(PerlIO *f) |
1242 | { |
1243 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
1244 | } |
1245 | |
1246 | IV |
1247 | PerlIOStdio_error(PerlIO *f) |
1248 | { |
1249 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
1250 | } |
1251 | |
1252 | void |
1253 | PerlIOStdio_clearerr(PerlIO *f) |
1254 | { |
1255 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
1256 | } |
1257 | |
1258 | void |
1259 | PerlIOStdio_setlinebuf(PerlIO *f) |
1260 | { |
1261 | #ifdef HAS_SETLINEBUF |
1262 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
1263 | #else |
1264 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
1265 | #endif |
1266 | } |
1267 | |
1268 | #ifdef FILE_base |
1269 | STDCHAR * |
1270 | PerlIOStdio_get_base(PerlIO *f) |
1271 | { |
1272 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1273 | return FILE_base(stdio); |
1274 | } |
1275 | |
1276 | Size_t |
1277 | PerlIOStdio_get_bufsiz(PerlIO *f) |
1278 | { |
1279 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1280 | return FILE_bufsiz(stdio); |
1281 | } |
1282 | #endif |
1283 | |
1284 | #ifdef USE_STDIO_PTR |
1285 | STDCHAR * |
1286 | PerlIOStdio_get_ptr(PerlIO *f) |
1287 | { |
1288 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1289 | return FILE_ptr(stdio); |
1290 | } |
1291 | |
1292 | SSize_t |
1293 | PerlIOStdio_get_cnt(PerlIO *f) |
1294 | { |
1295 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1296 | return FILE_cnt(stdio); |
1297 | } |
1298 | |
1299 | void |
1300 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) |
1301 | { |
1302 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1303 | if (ptr != NULL) |
1304 | { |
1305 | #ifdef STDIO_PTR_LVALUE |
1306 | FILE_ptr(stdio) = ptr; |
1307 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
1308 | if (FILE_cnt(stdio) != (cnt)) |
1309 | { |
1310 | dTHX; |
1311 | assert(FILE_cnt(stdio) == (cnt)); |
1312 | } |
1313 | #endif |
1314 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) |
1315 | /* Setting ptr _does_ change cnt - we are done */ |
1316 | return; |
1317 | #endif |
1318 | #else /* STDIO_PTR_LVALUE */ |
1319 | abort(); |
1320 | #endif /* STDIO_PTR_LVALUE */ |
1321 | } |
1322 | /* Now (or only) set cnt */ |
1323 | #ifdef STDIO_CNT_LVALUE |
1324 | FILE_cnt(stdio) = cnt; |
1325 | #else /* STDIO_CNT_LVALUE */ |
1326 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) |
1327 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); |
1328 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
1329 | abort(); |
1330 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
1331 | #endif /* STDIO_CNT_LVALUE */ |
1332 | } |
1333 | |
1334 | #endif |
1335 | |
1336 | PerlIO_funcs PerlIO_stdio = { |
1337 | "stdio", |
1338 | sizeof(PerlIOStdio), |
1339 | 0, |
1340 | PerlIOStdio_fileno, |
1341 | PerlIOStdio_fdopen, |
1342 | PerlIOStdio_open, |
1343 | PerlIOStdio_reopen, |
06da4f11 |
1344 | PerlIOBase_pushed, |
1345 | PerlIOBase_noop_ok, |
9e353e3b |
1346 | PerlIOStdio_read, |
1347 | PerlIOStdio_unread, |
1348 | PerlIOStdio_write, |
1349 | PerlIOStdio_seek, |
1350 | PerlIOStdio_tell, |
1351 | PerlIOStdio_close, |
1352 | PerlIOStdio_flush, |
06da4f11 |
1353 | PerlIOStdio_fill, |
9e353e3b |
1354 | PerlIOStdio_eof, |
1355 | PerlIOStdio_error, |
1356 | PerlIOStdio_clearerr, |
1357 | PerlIOStdio_setlinebuf, |
1358 | #ifdef FILE_base |
1359 | PerlIOStdio_get_base, |
1360 | PerlIOStdio_get_bufsiz, |
1361 | #else |
1362 | NULL, |
1363 | NULL, |
1364 | #endif |
1365 | #ifdef USE_STDIO_PTR |
1366 | PerlIOStdio_get_ptr, |
1367 | PerlIOStdio_get_cnt, |
0eb1d8a4 |
1368 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b |
1369 | PerlIOStdio_set_ptrcnt |
1370 | #else /* STDIO_PTR_LVALUE */ |
1371 | NULL |
1372 | #endif /* STDIO_PTR_LVALUE */ |
1373 | #else /* USE_STDIO_PTR */ |
1374 | NULL, |
1375 | NULL, |
1376 | NULL |
1377 | #endif /* USE_STDIO_PTR */ |
1378 | }; |
1379 | |
1380 | #undef PerlIO_exportFILE |
1381 | FILE * |
1382 | PerlIO_exportFILE(PerlIO *f, int fl) |
1383 | { |
1384 | PerlIO_flush(f); |
1385 | /* Should really push stdio discipline when we have them */ |
1386 | return fdopen(PerlIO_fileno(f),"r+"); |
1387 | } |
1388 | |
1389 | #undef PerlIO_findFILE |
1390 | FILE * |
1391 | PerlIO_findFILE(PerlIO *f) |
1392 | { |
1393 | return PerlIO_exportFILE(f,0); |
1394 | } |
1395 | |
1396 | #undef PerlIO_releaseFILE |
1397 | void |
1398 | PerlIO_releaseFILE(PerlIO *p, FILE *f) |
1399 | { |
1400 | } |
1401 | |
1402 | /*--------------------------------------------------------------------------------------*/ |
1403 | /* perlio buffer layer */ |
1404 | |
9e353e3b |
1405 | PerlIO * |
06da4f11 |
1406 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b |
1407 | { |
1408 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f |
1409 | int init = 0; |
1410 | PerlIO *f; |
1411 | if (*mode == 'I') |
1412 | { |
1413 | init = 1; |
1414 | mode++; |
1415 | } |
06da4f11 |
1416 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 |
1417 | if (f) |
1418 | { |
c7fc522f |
1419 | /* Initial stderr is unbuffered */ |
1420 | if (!init || fd != 2) |
1421 | { |
06da4f11 |
1422 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c7fc522f |
1423 | b->posn = PerlIO_tell(PerlIONext(f)); |
1424 | } |
6f9d8c32 |
1425 | } |
9e353e3b |
1426 | return f; |
760ac839 |
1427 | } |
1428 | |
9e353e3b |
1429 | PerlIO * |
06da4f11 |
1430 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 |
1431 | { |
9e353e3b |
1432 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 |
1433 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b |
1434 | if (f) |
1435 | { |
06da4f11 |
1436 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c3d7c7c9 |
1437 | b->posn = PerlIO_tell(PerlIONext(f)); |
9e353e3b |
1438 | } |
1439 | return f; |
1440 | } |
1441 | |
1442 | int |
c3d7c7c9 |
1443 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b |
1444 | { |
c3d7c7c9 |
1445 | PerlIO *next = PerlIONext(f); |
1446 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); |
1447 | if (code = 0) |
1448 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode); |
1449 | if (code == 0) |
1450 | { |
1451 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1452 | b->posn = PerlIO_tell(PerlIONext(f)); |
1453 | } |
1454 | return code; |
9e353e3b |
1455 | } |
1456 | |
9e353e3b |
1457 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1458 | read or write state |
1459 | */ |
1460 | IV |
1461 | PerlIOBuf_flush(PerlIO *f) |
6f9d8c32 |
1462 | { |
9e353e3b |
1463 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1464 | int code = 0; |
1465 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1466 | { |
1467 | /* write() the buffer */ |
1468 | STDCHAR *p = b->buf; |
1469 | int count; |
1470 | while (p < b->ptr) |
1471 | { |
1472 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); |
1473 | if (count > 0) |
1474 | { |
1475 | p += count; |
1476 | } |
1477 | else if (count < 0) |
1478 | { |
1479 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1480 | code = -1; |
1481 | break; |
1482 | } |
1483 | } |
1484 | b->posn += (p - b->buf); |
1485 | } |
1486 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
6f9d8c32 |
1487 | { |
9e353e3b |
1488 | /* Note position change */ |
1489 | b->posn += (b->ptr - b->buf); |
1490 | if (b->ptr < b->end) |
1491 | { |
1492 | /* We did not consume all of it */ |
1493 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) |
1494 | { |
1495 | b->posn = PerlIO_tell(PerlIONext(f)); |
1496 | } |
1497 | } |
6f9d8c32 |
1498 | } |
9e353e3b |
1499 | b->ptr = b->end = b->buf; |
1500 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
1501 | if (PerlIO_flush(PerlIONext(f)) != 0) |
1502 | code = -1; |
1503 | return code; |
6f9d8c32 |
1504 | } |
1505 | |
06da4f11 |
1506 | IV |
1507 | PerlIOBuf_fill(PerlIO *f) |
1508 | { |
1509 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1510 | SSize_t avail; |
1511 | if (PerlIO_flush(f) != 0) |
1512 | return -1; |
1513 | b->ptr = b->end = b->buf; |
1514 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); |
1515 | if (avail <= 0) |
1516 | { |
1517 | if (avail == 0) |
1518 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
1519 | else |
1520 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1521 | return -1; |
1522 | } |
1523 | b->end = b->buf+avail; |
1524 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
1525 | return 0; |
1526 | } |
1527 | |
6f9d8c32 |
1528 | SSize_t |
9e353e3b |
1529 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
1530 | { |
9e353e3b |
1531 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 |
1532 | STDCHAR *buf = (STDCHAR *) vbuf; |
1533 | if (f) |
1534 | { |
1535 | Size_t got = 0; |
9e353e3b |
1536 | if (!b->ptr) |
06da4f11 |
1537 | PerlIO_get_base(f); |
9e353e3b |
1538 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf |
1539 | return 0; |
6f9d8c32 |
1540 | while (count > 0) |
1541 | { |
9e353e3b |
1542 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 |
1543 | if ((SSize_t) count < avail) |
1544 | avail = count; |
1545 | if (avail > 0) |
1546 | { |
9e353e3b |
1547 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 |
1548 | got += avail; |
9e353e3b |
1549 | b->ptr += avail; |
6f9d8c32 |
1550 | count -= avail; |
1551 | buf += avail; |
1552 | } |
9e353e3b |
1553 | if (count && (b->ptr >= b->end)) |
6f9d8c32 |
1554 | { |
06da4f11 |
1555 | if (PerlIO_fill(f) != 0) |
1556 | break; |
6f9d8c32 |
1557 | } |
1558 | } |
1559 | return got; |
1560 | } |
1561 | return 0; |
1562 | } |
1563 | |
9e353e3b |
1564 | SSize_t |
1565 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1566 | { |
9e353e3b |
1567 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1568 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1569 | SSize_t unread = 0; |
1570 | SSize_t avail; |
9e353e3b |
1571 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1572 | PerlIO_flush(f); |
06da4f11 |
1573 | if (!b->buf) |
1574 | PerlIO_get_base(f); |
9e353e3b |
1575 | if (b->buf) |
1576 | { |
1577 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1578 | { |
1579 | avail = (b->ptr - b->buf); |
1580 | if (avail > (SSize_t) count) |
1581 | avail = count; |
1582 | b->ptr -= avail; |
1583 | } |
1584 | else |
1585 | { |
1586 | avail = b->bufsiz; |
1587 | if (avail > (SSize_t) count) |
1588 | avail = count; |
1589 | b->end = b->ptr + avail; |
1590 | } |
1591 | if (avail > 0) |
1592 | { |
1593 | buf -= avail; |
1594 | if (buf != b->ptr) |
1595 | { |
1596 | Copy(buf,b->ptr,avail,char); |
1597 | } |
1598 | count -= avail; |
1599 | unread += avail; |
1600 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
1601 | } |
1602 | } |
1603 | return unread; |
760ac839 |
1604 | } |
1605 | |
9e353e3b |
1606 | SSize_t |
1607 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1608 | { |
9e353e3b |
1609 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1610 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
1611 | Size_t written = 0; |
1612 | if (!b->buf) |
06da4f11 |
1613 | PerlIO_get_base(f); |
9e353e3b |
1614 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1615 | return 0; |
1616 | while (count > 0) |
1617 | { |
1618 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); |
1619 | if ((SSize_t) count < avail) |
1620 | avail = count; |
1621 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
1622 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
1623 | { |
1624 | while (avail > 0) |
1625 | { |
1626 | int ch = *buf++; |
1627 | *(b->ptr)++ = ch; |
1628 | count--; |
1629 | avail--; |
1630 | written++; |
1631 | if (ch == '\n') |
1632 | { |
1633 | PerlIO_flush(f); |
1634 | break; |
1635 | } |
1636 | } |
1637 | } |
1638 | else |
1639 | { |
1640 | if (avail) |
1641 | { |
1642 | Copy(buf,b->ptr,avail,char); |
1643 | count -= avail; |
1644 | buf += avail; |
1645 | written += avail; |
1646 | b->ptr += avail; |
1647 | } |
1648 | } |
1649 | if (b->ptr >= (b->buf + b->bufsiz)) |
1650 | PerlIO_flush(f); |
1651 | } |
1652 | return written; |
1653 | } |
1654 | |
1655 | IV |
1656 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) |
1657 | { |
1658 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
06da4f11 |
1659 | int code = PerlIO_flush(f); |
9e353e3b |
1660 | if (code == 0) |
1661 | { |
1662 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
1663 | code = PerlIO_seek(PerlIONext(f),offset,whence); |
1664 | if (code == 0) |
1665 | { |
1666 | b->posn = PerlIO_tell(PerlIONext(f)); |
1667 | } |
1668 | } |
1669 | return code; |
1670 | } |
1671 | |
1672 | Off_t |
1673 | PerlIOBuf_tell(PerlIO *f) |
1674 | { |
1675 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1676 | Off_t posn = b->posn; |
1677 | if (b->buf) |
1678 | posn += (b->ptr - b->buf); |
1679 | return posn; |
1680 | } |
1681 | |
1682 | IV |
1683 | PerlIOBuf_close(PerlIO *f) |
1684 | { |
1685 | IV code = PerlIOBase_close(f); |
1686 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1687 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) |
6f9d8c32 |
1688 | { |
9e353e3b |
1689 | Safefree(b->buf); |
6f9d8c32 |
1690 | } |
9e353e3b |
1691 | b->buf = NULL; |
1692 | b->ptr = b->end = b->buf; |
1693 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
1694 | return code; |
760ac839 |
1695 | } |
1696 | |
760ac839 |
1697 | void |
9e353e3b |
1698 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 |
1699 | { |
6f9d8c32 |
1700 | if (f) |
1701 | { |
9e353e3b |
1702 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 |
1703 | } |
760ac839 |
1704 | } |
1705 | |
9e353e3b |
1706 | STDCHAR * |
1707 | PerlIOBuf_get_ptr(PerlIO *f) |
1708 | { |
1709 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1710 | if (!b->buf) |
06da4f11 |
1711 | PerlIO_get_base(f); |
9e353e3b |
1712 | return b->ptr; |
1713 | } |
1714 | |
05d1247b |
1715 | SSize_t |
9e353e3b |
1716 | PerlIOBuf_get_cnt(PerlIO *f) |
1717 | { |
1718 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1719 | if (!b->buf) |
06da4f11 |
1720 | PerlIO_get_base(f); |
9e353e3b |
1721 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1722 | return (b->end - b->ptr); |
1723 | return 0; |
1724 | } |
1725 | |
1726 | STDCHAR * |
1727 | PerlIOBuf_get_base(PerlIO *f) |
1728 | { |
1729 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1730 | if (!b->buf) |
06da4f11 |
1731 | { |
1732 | if (!b->bufsiz) |
1733 | b->bufsiz = 4096; |
1734 | New('B',b->buf,b->bufsiz,STDCHAR); |
1735 | if (!b->buf) |
1736 | { |
1737 | b->buf = (STDCHAR *)&b->oneword; |
1738 | b->bufsiz = sizeof(b->oneword); |
1739 | } |
1740 | b->ptr = b->buf; |
1741 | b->end = b->ptr; |
1742 | } |
9e353e3b |
1743 | return b->buf; |
1744 | } |
1745 | |
1746 | Size_t |
1747 | PerlIOBuf_bufsiz(PerlIO *f) |
1748 | { |
1749 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1750 | if (!b->buf) |
06da4f11 |
1751 | PerlIO_get_base(f); |
9e353e3b |
1752 | return (b->end - b->buf); |
1753 | } |
1754 | |
1755 | void |
05d1247b |
1756 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b |
1757 | { |
1758 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1759 | if (!b->buf) |
06da4f11 |
1760 | PerlIO_get_base(f); |
9e353e3b |
1761 | b->ptr = ptr; |
1762 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) |
6f9d8c32 |
1763 | { |
9e353e3b |
1764 | dTHX; |
1765 | assert(PerlIO_get_cnt(f) == cnt); |
1766 | assert(b->ptr >= b->buf); |
6f9d8c32 |
1767 | } |
9e353e3b |
1768 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 |
1769 | } |
1770 | |
9e353e3b |
1771 | PerlIO_funcs PerlIO_perlio = { |
1772 | "perlio", |
1773 | sizeof(PerlIOBuf), |
1774 | 0, |
1775 | PerlIOBase_fileno, |
1776 | PerlIOBuf_fdopen, |
1777 | PerlIOBuf_open, |
c3d7c7c9 |
1778 | PerlIOBuf_reopen, |
06da4f11 |
1779 | PerlIOBase_pushed, |
1780 | PerlIOBase_noop_ok, |
9e353e3b |
1781 | PerlIOBuf_read, |
1782 | PerlIOBuf_unread, |
1783 | PerlIOBuf_write, |
1784 | PerlIOBuf_seek, |
1785 | PerlIOBuf_tell, |
1786 | PerlIOBuf_close, |
1787 | PerlIOBuf_flush, |
06da4f11 |
1788 | PerlIOBuf_fill, |
9e353e3b |
1789 | PerlIOBase_eof, |
1790 | PerlIOBase_error, |
1791 | PerlIOBase_clearerr, |
1792 | PerlIOBuf_setlinebuf, |
1793 | PerlIOBuf_get_base, |
1794 | PerlIOBuf_bufsiz, |
1795 | PerlIOBuf_get_ptr, |
1796 | PerlIOBuf_get_cnt, |
1797 | PerlIOBuf_set_ptrcnt, |
1798 | }; |
1799 | |
06da4f11 |
1800 | #ifdef HAS_MMAP |
1801 | /*--------------------------------------------------------------------------------------*/ |
1802 | /* mmap as "buffer" layer */ |
1803 | |
1804 | typedef struct |
1805 | { |
1806 | PerlIOBuf base; /* PerlIOBuf stuff */ |
c3d7c7c9 |
1807 | Mmap_t mptr; /* Mapped address */ |
06da4f11 |
1808 | Size_t len; /* mapped length */ |
1809 | STDCHAR *bbuf; /* malloced buffer if map fails */ |
c3d7c7c9 |
1810 | |
06da4f11 |
1811 | } PerlIOMmap; |
1812 | |
c3d7c7c9 |
1813 | static size_t page_size = 0; |
1814 | |
06da4f11 |
1815 | IV |
1816 | PerlIOMmap_map(PerlIO *f) |
1817 | { |
68d873c6 |
1818 | dTHX; |
06da4f11 |
1819 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1820 | PerlIOBuf *b = &m->base; |
1821 | IV flags = PerlIOBase(f)->flags; |
1822 | IV code = 0; |
1823 | if (m->len) |
1824 | abort(); |
1825 | if (flags & PERLIO_F_CANREAD) |
1826 | { |
1827 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1828 | int fd = PerlIO_fileno(f); |
1829 | struct stat st; |
1830 | code = fstat(fd,&st); |
1831 | if (code == 0 && S_ISREG(st.st_mode)) |
1832 | { |
1833 | SSize_t len = st.st_size - b->posn; |
1834 | if (len > 0) |
1835 | { |
c3d7c7c9 |
1836 | Off_t posn; |
68d873c6 |
1837 | if (!page_size) { |
1838 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) |
1839 | { |
1840 | SETERRNO(0,SS$_NORMAL); |
1841 | # ifdef _SC_PAGESIZE |
1842 | page_size = sysconf(_SC_PAGESIZE); |
1843 | # else |
1844 | page_size = sysconf(_SC_PAGE_SIZE); |
14aaf8e8 |
1845 | # endif |
68d873c6 |
1846 | if ((long)page_size < 0) { |
1847 | if (errno) { |
1848 | SV *error = ERRSV; |
1849 | char *msg; |
1850 | STRLEN n_a; |
1851 | (void)SvUPGRADE(error, SVt_PV); |
1852 | msg = SvPVx(error, n_a); |
14aaf8e8 |
1853 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 |
1854 | } |
1855 | else |
14aaf8e8 |
1856 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 |
1857 | } |
1858 | } |
1859 | #else |
1860 | # ifdef HAS_GETPAGESIZE |
c3d7c7c9 |
1861 | page_size = getpagesize(); |
68d873c6 |
1862 | # else |
1863 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) |
1864 | page_size = PAGESIZE; /* compiletime, bad */ |
1865 | # endif |
1866 | # endif |
1867 | #endif |
1868 | if ((IV)page_size <= 0) |
14aaf8e8 |
1869 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 |
1870 | } |
c3d7c7c9 |
1871 | if (b->posn < 0) |
1872 | { |
1873 | /* This is a hack - should never happen - open should have set it ! */ |
1874 | b->posn = PerlIO_tell(PerlIONext(f)); |
1875 | } |
1876 | posn = (b->posn / page_size) * page_size; |
1877 | len = st.st_size - posn; |
1878 | m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn); |
1879 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 |
1880 | { |
1881 | #if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 |
1882 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 |
1883 | #endif |
c3d7c7c9 |
1884 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
1885 | b->end = ((STDCHAR *)m->mptr) + len; |
1886 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); |
1887 | b->ptr = b->buf; |
1888 | m->len = len; |
06da4f11 |
1889 | } |
1890 | else |
1891 | { |
1892 | b->buf = NULL; |
1893 | } |
1894 | } |
1895 | else |
1896 | { |
1897 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; |
1898 | b->buf = NULL; |
1899 | b->ptr = b->end = b->ptr; |
1900 | code = -1; |
1901 | } |
1902 | } |
1903 | } |
1904 | return code; |
1905 | } |
1906 | |
1907 | IV |
1908 | PerlIOMmap_unmap(PerlIO *f) |
1909 | { |
1910 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1911 | PerlIOBuf *b = &m->base; |
1912 | IV code = 0; |
1913 | if (m->len) |
1914 | { |
1915 | if (b->buf) |
1916 | { |
c3d7c7c9 |
1917 | code = munmap(m->mptr, m->len); |
1918 | b->buf = NULL; |
1919 | m->len = 0; |
1920 | m->mptr = NULL; |
06da4f11 |
1921 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
1922 | code = -1; |
06da4f11 |
1923 | } |
1924 | b->ptr = b->end = b->buf; |
1925 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
1926 | } |
1927 | return code; |
1928 | } |
1929 | |
1930 | STDCHAR * |
1931 | PerlIOMmap_get_base(PerlIO *f) |
1932 | { |
1933 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1934 | PerlIOBuf *b = &m->base; |
1935 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
1936 | { |
1937 | /* Already have a readbuffer in progress */ |
1938 | return b->buf; |
1939 | } |
1940 | if (b->buf) |
1941 | { |
1942 | /* We have a write buffer or flushed PerlIOBuf read buffer */ |
1943 | m->bbuf = b->buf; /* save it in case we need it again */ |
1944 | b->buf = NULL; /* Clear to trigger below */ |
1945 | } |
1946 | if (!b->buf) |
1947 | { |
1948 | PerlIOMmap_map(f); /* Try and map it */ |
1949 | if (!b->buf) |
1950 | { |
1951 | /* Map did not work - recover PerlIOBuf buffer if we have one */ |
1952 | b->buf = m->bbuf; |
1953 | } |
1954 | } |
1955 | b->ptr = b->end = b->buf; |
1956 | if (b->buf) |
1957 | return b->buf; |
1958 | return PerlIOBuf_get_base(f); |
1959 | } |
1960 | |
1961 | SSize_t |
1962 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) |
1963 | { |
1964 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1965 | PerlIOBuf *b = &m->base; |
1966 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1967 | PerlIO_flush(f); |
1968 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) |
1969 | { |
1970 | b->ptr -= count; |
1971 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
1972 | return count; |
1973 | } |
1974 | if (m->len) |
1975 | { |
4a4a6116 |
1976 | /* Loose the unwritable mapped buffer */ |
06da4f11 |
1977 | PerlIO_flush(f); |
c3d7c7c9 |
1978 | /* If flush took the "buffer" see if we have one from before */ |
1979 | if (!b->buf && m->bbuf) |
1980 | b->buf = m->bbuf; |
1981 | if (!b->buf) |
1982 | { |
1983 | PerlIOBuf_get_base(f); |
1984 | m->bbuf = b->buf; |
1985 | } |
06da4f11 |
1986 | } |
1987 | return PerlIOBuf_unread(f,vbuf,count); |
1988 | } |
1989 | |
1990 | SSize_t |
1991 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) |
1992 | { |
1993 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1994 | PerlIOBuf *b = &m->base; |
1995 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) |
1996 | { |
1997 | /* No, or wrong sort of, buffer */ |
1998 | if (m->len) |
1999 | { |
2000 | if (PerlIOMmap_unmap(f) != 0) |
2001 | return 0; |
2002 | } |
2003 | /* If unmap took the "buffer" see if we have one from before */ |
2004 | if (!b->buf && m->bbuf) |
2005 | b->buf = m->bbuf; |
2006 | if (!b->buf) |
2007 | { |
2008 | PerlIOBuf_get_base(f); |
2009 | m->bbuf = b->buf; |
2010 | } |
2011 | } |
2012 | return PerlIOBuf_write(f,vbuf,count); |
2013 | } |
2014 | |
2015 | IV |
2016 | PerlIOMmap_flush(PerlIO *f) |
2017 | { |
2018 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2019 | PerlIOBuf *b = &m->base; |
2020 | IV code = PerlIOBuf_flush(f); |
2021 | /* Now we are "synced" at PerlIOBuf level */ |
2022 | if (b->buf) |
2023 | { |
2024 | if (m->len) |
2025 | { |
2026 | /* Unmap the buffer */ |
2027 | if (PerlIOMmap_unmap(f) != 0) |
2028 | code = -1; |
2029 | } |
2030 | else |
2031 | { |
2032 | /* We seem to have a PerlIOBuf buffer which was not mapped |
2033 | * remember it in case we need one later |
2034 | */ |
2035 | m->bbuf = b->buf; |
2036 | } |
2037 | } |
06da4f11 |
2038 | return code; |
2039 | } |
2040 | |
2041 | IV |
2042 | PerlIOMmap_fill(PerlIO *f) |
2043 | { |
2044 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2045 | IV code = PerlIO_flush(f); |
06da4f11 |
2046 | if (code == 0 && !b->buf) |
2047 | { |
2048 | code = PerlIOMmap_map(f); |
06da4f11 |
2049 | } |
2050 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
2051 | { |
2052 | code = PerlIOBuf_fill(f); |
06da4f11 |
2053 | } |
2054 | return code; |
2055 | } |
2056 | |
2057 | IV |
2058 | PerlIOMmap_close(PerlIO *f) |
2059 | { |
2060 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2061 | PerlIOBuf *b = &m->base; |
2062 | IV code = PerlIO_flush(f); |
2063 | if (m->bbuf) |
2064 | { |
2065 | b->buf = m->bbuf; |
2066 | m->bbuf = NULL; |
2067 | b->ptr = b->end = b->buf; |
2068 | } |
2069 | if (PerlIOBuf_close(f) != 0) |
2070 | code = -1; |
06da4f11 |
2071 | return code; |
2072 | } |
2073 | |
2074 | |
2075 | PerlIO_funcs PerlIO_mmap = { |
2076 | "mmap", |
2077 | sizeof(PerlIOMmap), |
2078 | 0, |
2079 | PerlIOBase_fileno, |
2080 | PerlIOBuf_fdopen, |
2081 | PerlIOBuf_open, |
c3d7c7c9 |
2082 | PerlIOBuf_reopen, |
06da4f11 |
2083 | PerlIOBase_pushed, |
2084 | PerlIOBase_noop_ok, |
2085 | PerlIOBuf_read, |
2086 | PerlIOMmap_unread, |
2087 | PerlIOMmap_write, |
2088 | PerlIOBuf_seek, |
2089 | PerlIOBuf_tell, |
2090 | PerlIOBuf_close, |
2091 | PerlIOMmap_flush, |
2092 | PerlIOMmap_fill, |
2093 | PerlIOBase_eof, |
2094 | PerlIOBase_error, |
2095 | PerlIOBase_clearerr, |
2096 | PerlIOBuf_setlinebuf, |
2097 | PerlIOMmap_get_base, |
2098 | PerlIOBuf_bufsiz, |
2099 | PerlIOBuf_get_ptr, |
2100 | PerlIOBuf_get_cnt, |
2101 | PerlIOBuf_set_ptrcnt, |
2102 | }; |
2103 | |
2104 | #endif /* HAS_MMAP */ |
2105 | |
9e353e3b |
2106 | void |
2107 | PerlIO_init(void) |
760ac839 |
2108 | { |
9e353e3b |
2109 | if (!_perlio) |
6f9d8c32 |
2110 | { |
9e353e3b |
2111 | atexit(&PerlIO_cleanup); |
6f9d8c32 |
2112 | } |
760ac839 |
2113 | } |
2114 | |
9e353e3b |
2115 | #undef PerlIO_stdin |
2116 | PerlIO * |
2117 | PerlIO_stdin(void) |
2118 | { |
2119 | if (!_perlio) |
f3862f8b |
2120 | PerlIO_stdstreams(); |
05d1247b |
2121 | return &_perlio[1]; |
9e353e3b |
2122 | } |
2123 | |
2124 | #undef PerlIO_stdout |
2125 | PerlIO * |
2126 | PerlIO_stdout(void) |
2127 | { |
2128 | if (!_perlio) |
f3862f8b |
2129 | PerlIO_stdstreams(); |
05d1247b |
2130 | return &_perlio[2]; |
9e353e3b |
2131 | } |
2132 | |
2133 | #undef PerlIO_stderr |
2134 | PerlIO * |
2135 | PerlIO_stderr(void) |
2136 | { |
2137 | if (!_perlio) |
f3862f8b |
2138 | PerlIO_stdstreams(); |
05d1247b |
2139 | return &_perlio[3]; |
9e353e3b |
2140 | } |
2141 | |
2142 | /*--------------------------------------------------------------------------------------*/ |
2143 | |
2144 | #undef PerlIO_getname |
2145 | char * |
2146 | PerlIO_getname(PerlIO *f, char *buf) |
2147 | { |
2148 | dTHX; |
2149 | Perl_croak(aTHX_ "Don't know how to get file name"); |
2150 | return NULL; |
2151 | } |
2152 | |
2153 | |
2154 | /*--------------------------------------------------------------------------------------*/ |
2155 | /* Functions which can be called on any kind of PerlIO implemented |
2156 | in terms of above |
2157 | */ |
2158 | |
2159 | #undef PerlIO_getc |
6f9d8c32 |
2160 | int |
9e353e3b |
2161 | PerlIO_getc(PerlIO *f) |
760ac839 |
2162 | { |
313ca112 |
2163 | STDCHAR buf[1]; |
2164 | SSize_t count = PerlIO_read(f,buf,1); |
9e353e3b |
2165 | if (count == 1) |
313ca112 |
2166 | { |
2167 | return (unsigned char) buf[0]; |
2168 | } |
2169 | return EOF; |
2170 | } |
2171 | |
2172 | #undef PerlIO_ungetc |
2173 | int |
2174 | PerlIO_ungetc(PerlIO *f, int ch) |
2175 | { |
2176 | if (ch != EOF) |
2177 | { |
2178 | STDCHAR buf = ch; |
2179 | if (PerlIO_unread(f,&buf,1) == 1) |
2180 | return ch; |
2181 | } |
2182 | return EOF; |
760ac839 |
2183 | } |
2184 | |
9e353e3b |
2185 | #undef PerlIO_putc |
2186 | int |
2187 | PerlIO_putc(PerlIO *f, int ch) |
760ac839 |
2188 | { |
9e353e3b |
2189 | STDCHAR buf = ch; |
2190 | return PerlIO_write(f,&buf,1); |
760ac839 |
2191 | } |
2192 | |
9e353e3b |
2193 | #undef PerlIO_puts |
760ac839 |
2194 | int |
9e353e3b |
2195 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 |
2196 | { |
9e353e3b |
2197 | STRLEN len = strlen(s); |
2198 | return PerlIO_write(f,s,len); |
760ac839 |
2199 | } |
2200 | |
2201 | #undef PerlIO_rewind |
2202 | void |
c78749f2 |
2203 | PerlIO_rewind(PerlIO *f) |
760ac839 |
2204 | { |
6f9d8c32 |
2205 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b |
2206 | PerlIO_clearerr(f); |
6f9d8c32 |
2207 | } |
2208 | |
2209 | #undef PerlIO_vprintf |
2210 | int |
2211 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) |
2212 | { |
2213 | dTHX; |
bb9950b7 |
2214 | SV *sv = newSVpvn("",0); |
6f9d8c32 |
2215 | char *s; |
2216 | STRLEN len; |
2217 | sv_vcatpvf(sv, fmt, &ap); |
2218 | s = SvPV(sv,len); |
bb9950b7 |
2219 | return PerlIO_write(f,s,len); |
760ac839 |
2220 | } |
2221 | |
2222 | #undef PerlIO_printf |
6f9d8c32 |
2223 | int |
760ac839 |
2224 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 |
2225 | { |
2226 | va_list ap; |
2227 | int result; |
760ac839 |
2228 | va_start(ap,fmt); |
6f9d8c32 |
2229 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 |
2230 | va_end(ap); |
2231 | return result; |
2232 | } |
2233 | |
2234 | #undef PerlIO_stdoutf |
6f9d8c32 |
2235 | int |
760ac839 |
2236 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 |
2237 | { |
2238 | va_list ap; |
2239 | int result; |
760ac839 |
2240 | va_start(ap,fmt); |
760ac839 |
2241 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
2242 | va_end(ap); |
2243 | return result; |
2244 | } |
2245 | |
2246 | #undef PerlIO_tmpfile |
2247 | PerlIO * |
c78749f2 |
2248 | PerlIO_tmpfile(void) |
760ac839 |
2249 | { |
6f9d8c32 |
2250 | dTHX; |
b1ef6e3b |
2251 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 |
2252 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
2253 | int fd = mkstemp(SvPVX(sv)); |
2254 | PerlIO *f = NULL; |
2255 | if (fd >= 0) |
2256 | { |
b1ef6e3b |
2257 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 |
2258 | if (f) |
2259 | { |
9e353e3b |
2260 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 |
2261 | } |
00b02797 |
2262 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 |
2263 | SvREFCNT_dec(sv); |
2264 | } |
2265 | return f; |
760ac839 |
2266 | } |
2267 | |
6f9d8c32 |
2268 | #undef HAS_FSETPOS |
2269 | #undef HAS_FGETPOS |
2270 | |
760ac839 |
2271 | #endif /* USE_SFIO */ |
2272 | #endif /* PERLIO_IS_STDIO */ |
2273 | |
9e353e3b |
2274 | /*======================================================================================*/ |
2275 | /* Now some functions in terms of above which may be needed even if |
2276 | we are not in true PerlIO mode |
2277 | */ |
2278 | |
760ac839 |
2279 | #ifndef HAS_FSETPOS |
2280 | #undef PerlIO_setpos |
2281 | int |
c78749f2 |
2282 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 |
2283 | { |
6f9d8c32 |
2284 | return PerlIO_seek(f,*pos,0); |
760ac839 |
2285 | } |
c411622e |
2286 | #else |
2287 | #ifndef PERLIO_IS_STDIO |
2288 | #undef PerlIO_setpos |
2289 | int |
c78749f2 |
2290 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e |
2291 | { |
2d4389e4 |
2292 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
2293 | return fsetpos64(f, pos); |
2294 | #else |
c411622e |
2295 | return fsetpos(f, pos); |
d9b3e12d |
2296 | #endif |
c411622e |
2297 | } |
2298 | #endif |
760ac839 |
2299 | #endif |
2300 | |
2301 | #ifndef HAS_FGETPOS |
2302 | #undef PerlIO_getpos |
2303 | int |
c78749f2 |
2304 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 |
2305 | { |
2306 | *pos = PerlIO_tell(f); |
a17c7222 |
2307 | return *pos == -1 ? -1 : 0; |
760ac839 |
2308 | } |
c411622e |
2309 | #else |
2310 | #ifndef PERLIO_IS_STDIO |
2311 | #undef PerlIO_getpos |
2312 | int |
c78749f2 |
2313 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e |
2314 | { |
2d4389e4 |
2315 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
2316 | return fgetpos64(f, pos); |
2317 | #else |
c411622e |
2318 | return fgetpos(f, pos); |
d9b3e12d |
2319 | #endif |
c411622e |
2320 | } |
2321 | #endif |
760ac839 |
2322 | #endif |
2323 | |
2324 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) |
2325 | |
2326 | int |
c78749f2 |
2327 | vprintf(char *pat, char *args) |
662a7e3f |
2328 | { |
2329 | _doprnt(pat, args, stdout); |
2330 | return 0; /* wrong, but perl doesn't use the return value */ |
2331 | } |
2332 | |
2333 | int |
c78749f2 |
2334 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 |
2335 | { |
2336 | _doprnt(pat, args, fd); |
2337 | return 0; /* wrong, but perl doesn't use the return value */ |
2338 | } |
2339 | |
2340 | #endif |
2341 | |
2342 | #ifndef PerlIO_vsprintf |
6f9d8c32 |
2343 | int |
8ac85365 |
2344 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 |
2345 | { |
2346 | int val = vsprintf(s, fmt, ap); |
2347 | if (n >= 0) |
2348 | { |
8c86a920 |
2349 | if (strlen(s) >= (STRLEN)n) |
760ac839 |
2350 | { |
bf49b057 |
2351 | dTHX; |
fb4a9925 |
2352 | (void)PerlIO_puts(Perl_error_log, |
2353 | "panic: sprintf overflow - memory corrupted!\n"); |
bf49b057 |
2354 | my_exit(1); |
760ac839 |
2355 | } |
2356 | } |
2357 | return val; |
2358 | } |
2359 | #endif |
2360 | |
2361 | #ifndef PerlIO_sprintf |
6f9d8c32 |
2362 | int |
760ac839 |
2363 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 |
2364 | { |
2365 | va_list ap; |
2366 | int result; |
760ac839 |
2367 | va_start(ap,fmt); |
760ac839 |
2368 | result = PerlIO_vsprintf(s, n, fmt, ap); |
2369 | va_end(ap); |
2370 | return result; |
2371 | } |
2372 | #endif |
2373 | |
c5be433b |
2374 | #endif /* !PERL_IMPLICIT_SYS */ |
2375 | |