Commit | Line | Data |
---|---|---|
760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
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 JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
0f4eea8f | 23 | * which are not #defined in iperlsys.h. |
6f9d8c32 | 24 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
25 | */ |
26 | ||
27 | #include "EXTERN.h" | |
864dbfa3 | 28 | #define PERL_IN_PERLIO_C |
760ac839 LW |
29 | #include "perl.h" |
30 | ||
32e30700 GS |
31 | #if !defined(PERL_IMPLICIT_SYS) |
32 | ||
6f9d8c32 | 33 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
34 | |
35 | void | |
8ac85365 | 36 | PerlIO_init(void) |
760ac839 | 37 | { |
6f9d8c32 | 38 | /* Does nothing (yet) except force this file to be included |
760ac839 | 39 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
40 | of other functions that may be required by loadable |
41 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
42 | */ |
43 | } | |
44 | ||
33dcbb9a | 45 | #undef PerlIO_tmpfile |
46 | PerlIO * | |
8ac85365 | 47 | PerlIO_tmpfile(void) |
33dcbb9a | 48 | { |
49 | return tmpfile(); | |
50 | } | |
51 | ||
760ac839 LW |
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 |
760ac839 LW |
60 | get pulled in from libsfio.a |
61 | */ | |
62 | ||
63 | #undef PerlIO_tmpfile | |
64 | PerlIO * | |
c78749f2 | 65 | PerlIO_tmpfile(void) |
760ac839 LW |
66 | { |
67 | return sftmp(0); | |
68 | } | |
69 | ||
70 | void | |
c78749f2 | 71 | PerlIO_init(void) |
760ac839 | 72 | { |
6f9d8c32 NIS |
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 LW |
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 LW |
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 | */ |
760ac839 | 90 | |
76ced9ad NIS |
91 | #include "perliol.h" |
92 | ||
b1ef6e3b | 93 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
94 | #ifdef I_UNISTD |
95 | #include <unistd.h> | |
96 | #endif | |
06da4f11 NIS |
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 NIS |
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 NIS |
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 NIS |
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 NIS |
129 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
130 | ||
6f9d8c32 | 131 | s = SvPV(sv,len); |
00b02797 | 132 | PerlLIO_write(dbg,s,len); |
6f9d8c32 NIS |
133 | va_end(ap); |
134 | SvREFCNT_dec(sv); | |
135 | } | |
136 | } | |
137 | ||
9e353e3b NIS |
138 | /*--------------------------------------------------------------------------------------*/ |
139 | ||
9e353e3b NIS |
140 | /* Inner level routines */ |
141 | ||
b1ef6e3b | 142 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
143 | PerlIO *_perlio = NULL; |
144 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 145 | |
760ac839 | 146 | PerlIO * |
6f9d8c32 NIS |
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 NIS |
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 NIS |
160 | return f; |
161 | } | |
6f9d8c32 | 162 | } |
6f9d8c32 | 163 | } |
05d1247b NIS |
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 NIS |
190 | HV *PerlIO_layer_hv; |
191 | AV *PerlIO_layer_av; | |
192 | ||
05d1247b NIS |
193 | void |
194 | PerlIO_cleanup(void) | |
195 | { | |
196 | PerlIO_cleantable(&_perlio); | |
6f9d8c32 NIS |
197 | } |
198 | ||
9e353e3b NIS |
199 | void |
200 | PerlIO_pop(PerlIO *f) | |
760ac839 | 201 | { |
9e353e3b NIS |
202 | PerlIOl *l = *f; |
203 | if (l) | |
6f9d8c32 | 204 | { |
06da4f11 | 205 | (*l->tab->Popped)(f); |
9e353e3b NIS |
206 | *f = l->next; |
207 | Safefree(l); | |
6f9d8c32 | 208 | } |
6f9d8c32 NIS |
209 | } |
210 | ||
211 | #undef PerlIO_close | |
212 | int | |
213 | PerlIO_close(PerlIO *f) | |
214 | { | |
9e353e3b NIS |
215 | int code = (*PerlIOBase(f)->tab->Close)(f); |
216 | while (*f) | |
6f9d8c32 | 217 | { |
9e353e3b | 218 | PerlIO_pop(f); |
6f9d8c32 NIS |
219 | } |
220 | return code; | |
221 | } | |
222 | ||
9e353e3b NIS |
223 | |
224 | /*--------------------------------------------------------------------------------------*/ | |
225 | /* Given the abstraction above the public API functions */ | |
226 | ||
227 | #undef PerlIO_fileno | |
228 | int | |
229 | PerlIO_fileno(PerlIO *f) | |
230 | { | |
231 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
232 | } | |
233 | ||
f3862f8b NIS |
234 | XS(XS_perlio_import) |
235 | { | |
236 | dXSARGS; | |
237 | GV *gv = CvGV(cv); | |
238 | char *s = GvNAME(gv); | |
239 | STRLEN l = GvNAMELEN(gv); | |
240 | PerlIO_debug("%.*s\n",(int) l,s); | |
241 | XSRETURN_EMPTY; | |
242 | } | |
243 | ||
244 | XS(XS_perlio_unimport) | |
245 | { | |
246 | dXSARGS; | |
247 | GV *gv = CvGV(cv); | |
248 | char *s = GvNAME(gv); | |
249 | STRLEN l = GvNAMELEN(gv); | |
250 | PerlIO_debug("%.*s\n",(int) l,s); | |
251 | XSRETURN_EMPTY; | |
252 | } | |
253 | ||
f3862f8b NIS |
254 | SV * |
255 | PerlIO_find_layer(char *name, STRLEN len) | |
256 | { | |
257 | dTHX; | |
258 | SV **svp; | |
259 | SV *sv; | |
260 | if (len <= 0) | |
261 | len = strlen(name); | |
262 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
263 | if (svp && (sv = *svp) && SvROK(sv)) | |
264 | return *svp; | |
265 | return NULL; | |
266 | } | |
267 | ||
268 | void | |
269 | PerlIO_define_layer(PerlIO_funcs *tab) | |
270 | { | |
271 | dTHX; | |
272 | HV *stash = gv_stashpv("perlio::Layer", TRUE); | |
e7778b43 | 273 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b NIS |
274 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
275 | } | |
276 | ||
277 | PerlIO_funcs * | |
278 | PerlIO_default_layer(I32 n) | |
279 | { | |
280 | dTHX; | |
281 | SV **svp; | |
282 | SV *layer; | |
283 | PerlIO_funcs *tab = &PerlIO_stdio; | |
284 | int len; | |
285 | if (!PerlIO_layer_hv) | |
286 | { | |
00b02797 | 287 | char *s = PerlEnv_getenv("PERLIO"); |
f3862f8b NIS |
288 | newXS("perlio::import",XS_perlio_import,__FILE__); |
289 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
a1d180c4 NIS |
290 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); |
291 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); | |
f3862f8b | 292 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b NIS |
293 | PerlIO_define_layer(&PerlIO_perlio); |
294 | PerlIO_define_layer(&PerlIO_stdio); | |
06da4f11 NIS |
295 | #ifdef HAS_MMAP |
296 | PerlIO_define_layer(&PerlIO_mmap); | |
297 | #endif | |
f3862f8b NIS |
298 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
299 | if (s) | |
300 | { | |
301 | while (*s) | |
302 | { | |
00b02797 | 303 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b NIS |
304 | s++; |
305 | if (*s) | |
306 | { | |
307 | char *e = s; | |
308 | SV *layer; | |
00b02797 | 309 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b NIS |
310 | e++; |
311 | layer = PerlIO_find_layer(s,e-s); | |
312 | if (layer) | |
313 | { | |
314 | PerlIO_debug("Pushing %.*s\n",(e-s),s); | |
315 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
316 | } | |
317 | else | |
ef0f9817 | 318 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b NIS |
319 | s = e; |
320 | } | |
321 | } | |
322 | } | |
323 | } | |
324 | len = av_len(PerlIO_layer_av); | |
325 | if (len < 1) | |
326 | { | |
327 | if (PerlIO_stdio.Set_ptrcnt) | |
328 | { | |
329 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); | |
330 | } | |
331 | else | |
332 | { | |
333 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); | |
334 | } | |
335 | len = av_len(PerlIO_layer_av); | |
336 | } | |
337 | if (n < 0) | |
338 | n += len+1; | |
339 | svp = av_fetch(PerlIO_layer_av,n,0); | |
340 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
341 | { | |
e7778b43 | 342 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b NIS |
343 | } |
344 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
345 | return tab; | |
346 | } | |
347 | ||
348 | #define PerlIO_default_top() PerlIO_default_layer(-1) | |
349 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
350 | ||
351 | void | |
352 | PerlIO_stdstreams() | |
353 | { | |
354 | if (!_perlio) | |
355 | { | |
356 | PerlIO_allocate(); | |
357 | PerlIO_fdopen(0,"Ir"); | |
358 | PerlIO_fdopen(1,"Iw"); | |
359 | PerlIO_fdopen(2,"Iw"); | |
360 | } | |
361 | } | |
9e353e3b | 362 | |
76ced9ad NIS |
363 | PerlIO * |
364 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
365 | { | |
366 | PerlIOl *l = NULL; | |
367 | Newc('L',l,tab->size,char,PerlIOl); | |
368 | if (l) | |
369 | { | |
370 | Zero(l,tab->size,char); | |
371 | l->next = *f; | |
372 | l->tab = tab; | |
373 | *f = l; | |
374 | if ((*l->tab->Pushed)(f,mode) != 0) | |
375 | { | |
376 | PerlIO_pop(f); | |
377 | return NULL; | |
378 | } | |
379 | } | |
380 | return f; | |
381 | } | |
382 | ||
9e353e3b NIS |
383 | #undef PerlIO_fdopen |
384 | PerlIO * | |
385 | PerlIO_fdopen(int fd, const char *mode) | |
386 | { | |
387 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
388 | if (!_perlio) |
389 | PerlIO_stdstreams(); | |
06da4f11 | 390 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b NIS |
391 | } |
392 | ||
6f9d8c32 NIS |
393 | #undef PerlIO_open |
394 | PerlIO * | |
395 | PerlIO_open(const char *path, const char *mode) | |
396 | { | |
9e353e3b | 397 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
398 | if (!_perlio) |
399 | PerlIO_stdstreams(); | |
06da4f11 | 400 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 NIS |
401 | } |
402 | ||
9e353e3b NIS |
403 | #undef PerlIO_reopen |
404 | PerlIO * | |
405 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 406 | { |
9e353e3b | 407 | if (f) |
6f9d8c32 | 408 | { |
9e353e3b NIS |
409 | PerlIO_flush(f); |
410 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
411 | { | |
06da4f11 NIS |
412 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0) |
413 | return f; | |
9e353e3b NIS |
414 | } |
415 | return NULL; | |
6f9d8c32 | 416 | } |
9e353e3b NIS |
417 | else |
418 | return PerlIO_open(path,mode); | |
760ac839 LW |
419 | } |
420 | ||
9e353e3b NIS |
421 | #undef PerlIO_read |
422 | SSize_t | |
423 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 424 | { |
9e353e3b | 425 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
426 | } |
427 | ||
313ca112 NIS |
428 | #undef PerlIO_unread |
429 | SSize_t | |
430 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 431 | { |
313ca112 | 432 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
433 | } |
434 | ||
9e353e3b NIS |
435 | #undef PerlIO_write |
436 | SSize_t | |
437 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 438 | { |
9e353e3b | 439 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
440 | } |
441 | ||
9e353e3b | 442 | #undef PerlIO_seek |
6f9d8c32 | 443 | int |
9e353e3b | 444 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 445 | { |
9e353e3b | 446 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
447 | } |
448 | ||
9e353e3b NIS |
449 | #undef PerlIO_tell |
450 | Off_t | |
451 | PerlIO_tell(PerlIO *f) | |
760ac839 | 452 | { |
9e353e3b | 453 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
454 | } |
455 | ||
9e353e3b | 456 | #undef PerlIO_flush |
6f9d8c32 | 457 | int |
9e353e3b | 458 | PerlIO_flush(PerlIO *f) |
760ac839 | 459 | { |
6f9d8c32 NIS |
460 | if (f) |
461 | { | |
9e353e3b | 462 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 463 | } |
9e353e3b | 464 | else |
6f9d8c32 | 465 | { |
05d1247b | 466 | PerlIO **table = &_perlio; |
9e353e3b | 467 | int code = 0; |
05d1247b | 468 | while ((f = *table)) |
6f9d8c32 | 469 | { |
05d1247b NIS |
470 | int i; |
471 | table = (PerlIO **)(f++); | |
472 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
473 | { |
474 | if (*f && PerlIO_flush(f) != 0) | |
475 | code = -1; | |
05d1247b | 476 | f++; |
9e353e3b | 477 | } |
6f9d8c32 | 478 | } |
9e353e3b | 479 | return code; |
6f9d8c32 | 480 | } |
760ac839 LW |
481 | } |
482 | ||
06da4f11 NIS |
483 | #undef PerlIO_fill |
484 | int | |
485 | PerlIO_fill(PerlIO *f) | |
486 | { | |
487 | return (*PerlIOBase(f)->tab->Fill)(f); | |
488 | } | |
489 | ||
f3862f8b NIS |
490 | #undef PerlIO_isutf8 |
491 | int | |
492 | PerlIO_isutf8(PerlIO *f) | |
493 | { | |
494 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
495 | } | |
496 | ||
9e353e3b | 497 | #undef PerlIO_eof |
6f9d8c32 | 498 | int |
9e353e3b | 499 | PerlIO_eof(PerlIO *f) |
760ac839 | 500 | { |
9e353e3b NIS |
501 | return (*PerlIOBase(f)->tab->Eof)(f); |
502 | } | |
503 | ||
504 | #undef PerlIO_error | |
505 | int | |
506 | PerlIO_error(PerlIO *f) | |
507 | { | |
508 | return (*PerlIOBase(f)->tab->Error)(f); | |
509 | } | |
510 | ||
511 | #undef PerlIO_clearerr | |
512 | void | |
513 | PerlIO_clearerr(PerlIO *f) | |
514 | { | |
515 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
516 | } | |
517 | ||
518 | #undef PerlIO_setlinebuf | |
519 | void | |
520 | PerlIO_setlinebuf(PerlIO *f) | |
521 | { | |
522 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
523 | } | |
524 | ||
525 | #undef PerlIO_has_base | |
526 | int | |
527 | PerlIO_has_base(PerlIO *f) | |
528 | { | |
529 | if (f && *f) | |
6f9d8c32 | 530 | { |
9e353e3b | 531 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 532 | } |
9e353e3b | 533 | return 0; |
760ac839 LW |
534 | } |
535 | ||
9e353e3b NIS |
536 | #undef PerlIO_fast_gets |
537 | int | |
538 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 539 | { |
9e353e3b | 540 | if (f && *f) |
6f9d8c32 | 541 | { |
c7fc522f NIS |
542 | PerlIOl *l = PerlIOBase(f); |
543 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 544 | } |
9e353e3b NIS |
545 | return 0; |
546 | } | |
547 | ||
548 | #undef PerlIO_has_cntptr | |
549 | int | |
550 | PerlIO_has_cntptr(PerlIO *f) | |
551 | { | |
552 | if (f && *f) | |
553 | { | |
554 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
555 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
556 | } | |
557 | return 0; | |
558 | } | |
559 | ||
560 | #undef PerlIO_canset_cnt | |
561 | int | |
562 | PerlIO_canset_cnt(PerlIO *f) | |
563 | { | |
564 | if (f && *f) | |
565 | { | |
c7fc522f NIS |
566 | PerlIOl *l = PerlIOBase(f); |
567 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 568 | } |
c7fc522f | 569 | return 0; |
760ac839 LW |
570 | } |
571 | ||
572 | #undef PerlIO_get_base | |
888911fc | 573 | STDCHAR * |
a20bf0c3 | 574 | PerlIO_get_base(PerlIO *f) |
760ac839 | 575 | { |
9e353e3b NIS |
576 | return (*PerlIOBase(f)->tab->Get_base)(f); |
577 | } | |
578 | ||
579 | #undef PerlIO_get_bufsiz | |
580 | int | |
581 | PerlIO_get_bufsiz(PerlIO *f) | |
582 | { | |
583 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
584 | } | |
585 | ||
586 | #undef PerlIO_get_ptr | |
587 | STDCHAR * | |
588 | PerlIO_get_ptr(PerlIO *f) | |
589 | { | |
590 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
591 | } | |
592 | ||
593 | #undef PerlIO_get_cnt | |
05d1247b | 594 | int |
9e353e3b NIS |
595 | PerlIO_get_cnt(PerlIO *f) |
596 | { | |
597 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
598 | } | |
599 | ||
600 | #undef PerlIO_set_cnt | |
601 | void | |
05d1247b | 602 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 603 | { |
f3862f8b | 604 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
605 | } |
606 | ||
607 | #undef PerlIO_set_ptrcnt | |
608 | void | |
05d1247b | 609 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 610 | { |
f3862f8b | 611 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
612 | } |
613 | ||
614 | /*--------------------------------------------------------------------------------------*/ | |
615 | /* "Methods" of the "base class" */ | |
616 | ||
617 | IV | |
618 | PerlIOBase_fileno(PerlIO *f) | |
619 | { | |
620 | return PerlIO_fileno(PerlIONext(f)); | |
621 | } | |
622 | ||
76ced9ad NIS |
623 | IV |
624 | PerlIOBase_pushed(PerlIO *f, const char *mode) | |
9e353e3b | 625 | { |
76ced9ad NIS |
626 | PerlIOl *l = PerlIOBase(f); |
627 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
628 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
629 | if (mode) | |
6f9d8c32 | 630 | { |
76ced9ad | 631 | switch (*mode++) |
06da4f11 | 632 | { |
76ced9ad NIS |
633 | case 'r': |
634 | l->flags = PERLIO_F_CANREAD; | |
635 | break; | |
636 | case 'a': | |
637 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; | |
638 | break; | |
639 | case 'w': | |
640 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; | |
641 | break; | |
642 | default: | |
643 | errno = EINVAL; | |
644 | return -1; | |
645 | } | |
646 | while (*mode) | |
647 | { | |
648 | switch (*mode++) | |
649 | { | |
650 | case '+': | |
651 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
652 | break; | |
653 | case 'b': | |
654 | l->flags |= PERLIO_F_BINARY; | |
655 | break; | |
656 | default: | |
657 | errno = EINVAL; | |
658 | return -1; | |
659 | } | |
06da4f11 | 660 | } |
6f9d8c32 | 661 | } |
76ced9ad NIS |
662 | else |
663 | { | |
664 | if (l->next) | |
665 | { | |
666 | l->flags |= l->next->flags & | |
667 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
668 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
669 | } | |
670 | } | |
671 | return 0; | |
672 | } | |
673 | ||
674 | IV | |
675 | PerlIOBase_popped(PerlIO *f) | |
676 | { | |
677 | return 0; | |
760ac839 LW |
678 | } |
679 | ||
9e353e3b NIS |
680 | SSize_t |
681 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
682 | { | |
683 | Off_t old = PerlIO_tell(f); | |
684 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
685 | { | |
686 | Off_t new = PerlIO_tell(f); | |
687 | return old - new; | |
688 | } | |
689 | return 0; | |
690 | } | |
691 | ||
692 | IV | |
06da4f11 | 693 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
694 | { |
695 | return 0; | |
696 | } | |
697 | ||
698 | IV | |
06da4f11 NIS |
699 | PerlIOBase_noop_fail(PerlIO *f) |
700 | { | |
701 | return -1; | |
702 | } | |
703 | ||
704 | IV | |
9e353e3b NIS |
705 | PerlIOBase_close(PerlIO *f) |
706 | { | |
707 | IV code = 0; | |
708 | if (PerlIO_flush(f) != 0) | |
709 | code = -1; | |
710 | if (PerlIO_close(PerlIONext(f)) != 0) | |
711 | code = -1; | |
712 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
713 | return code; | |
714 | } | |
715 | ||
716 | IV | |
717 | PerlIOBase_eof(PerlIO *f) | |
718 | { | |
719 | if (f && *f) | |
720 | { | |
721 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
722 | } | |
723 | return 1; | |
724 | } | |
725 | ||
726 | IV | |
727 | PerlIOBase_error(PerlIO *f) | |
728 | { | |
729 | if (f && *f) | |
730 | { | |
731 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
732 | } | |
733 | return 1; | |
734 | } | |
735 | ||
736 | void | |
737 | PerlIOBase_clearerr(PerlIO *f) | |
738 | { | |
739 | if (f && *f) | |
740 | { | |
741 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
742 | } | |
743 | } | |
744 | ||
745 | void | |
746 | PerlIOBase_setlinebuf(PerlIO *f) | |
747 | { | |
748 | ||
749 | } | |
750 | ||
9e353e3b NIS |
751 | /*--------------------------------------------------------------------------------------*/ |
752 | /* Bottom-most level for UNIX-like case */ | |
753 | ||
754 | typedef struct | |
755 | { | |
756 | struct _PerlIO base; /* The generic part */ | |
757 | int fd; /* UNIX like file descriptor */ | |
758 | int oflags; /* open/fcntl flags */ | |
759 | } PerlIOUnix; | |
760 | ||
6f9d8c32 | 761 | int |
9e353e3b | 762 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 763 | { |
9e353e3b NIS |
764 | int oflags = -1; |
765 | switch(*mode) | |
766 | { | |
767 | case 'r': | |
768 | oflags = O_RDONLY; | |
769 | if (*++mode == '+') | |
770 | { | |
771 | oflags = O_RDWR; | |
772 | mode++; | |
773 | } | |
774 | break; | |
775 | ||
776 | case 'w': | |
777 | oflags = O_CREAT|O_TRUNC; | |
778 | if (*++mode == '+') | |
779 | { | |
780 | oflags |= O_RDWR; | |
781 | mode++; | |
782 | } | |
783 | else | |
784 | oflags |= O_WRONLY; | |
785 | break; | |
786 | ||
787 | case 'a': | |
788 | oflags = O_CREAT|O_APPEND; | |
789 | if (*++mode == '+') | |
790 | { | |
791 | oflags |= O_RDWR; | |
792 | mode++; | |
793 | } | |
794 | else | |
795 | oflags |= O_WRONLY; | |
796 | break; | |
797 | } | |
798 | if (*mode || oflags == -1) | |
6f9d8c32 | 799 | { |
9e353e3b NIS |
800 | errno = EINVAL; |
801 | oflags = -1; | |
6f9d8c32 | 802 | } |
9e353e3b NIS |
803 | return oflags; |
804 | } | |
805 | ||
806 | IV | |
807 | PerlIOUnix_fileno(PerlIO *f) | |
808 | { | |
809 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
810 | } | |
811 | ||
812 | PerlIO * | |
06da4f11 | 813 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
814 | { |
815 | PerlIO *f = NULL; | |
c7fc522f NIS |
816 | if (*mode == 'I') |
817 | mode++; | |
9e353e3b NIS |
818 | if (fd >= 0) |
819 | { | |
820 | int oflags = PerlIOUnix_oflags(mode); | |
821 | if (oflags != -1) | |
822 | { | |
06da4f11 | 823 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
824 | s->fd = fd; |
825 | s->oflags = oflags; | |
826 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
827 | } | |
828 | } | |
829 | return f; | |
830 | } | |
831 | ||
832 | PerlIO * | |
06da4f11 | 833 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
834 | { |
835 | PerlIO *f = NULL; | |
836 | int oflags = PerlIOUnix_oflags(mode); | |
837 | if (oflags != -1) | |
838 | { | |
00b02797 | 839 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
840 | if (fd >= 0) |
841 | { | |
06da4f11 | 842 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
843 | s->fd = fd; |
844 | s->oflags = oflags; | |
845 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
846 | } | |
847 | } | |
848 | return f; | |
760ac839 LW |
849 | } |
850 | ||
760ac839 | 851 | int |
9e353e3b | 852 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 853 | { |
9e353e3b NIS |
854 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
855 | int oflags = PerlIOUnix_oflags(mode); | |
856 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
857 | (*PerlIOBase(f)->tab->Close)(f); | |
858 | if (oflags != -1) | |
859 | { | |
00b02797 | 860 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
861 | if (fd >= 0) |
862 | { | |
863 | s->fd = fd; | |
864 | s->oflags = oflags; | |
865 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
866 | return 0; | |
867 | } | |
868 | } | |
869 | return -1; | |
870 | } | |
871 | ||
872 | SSize_t | |
873 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
874 | { | |
875 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
8f24bd79 NIS |
876 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
877 | return 0; | |
9e353e3b NIS |
878 | while (1) |
879 | { | |
00b02797 | 880 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 881 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
882 | { |
883 | if (len < 0) | |
884 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
885 | else if (len == 0 && count != 0) | |
886 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
887 | return len; | |
888 | } | |
9e353e3b NIS |
889 | } |
890 | } | |
891 | ||
892 | SSize_t | |
893 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
894 | { | |
895 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
896 | while (1) | |
897 | { | |
00b02797 | 898 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 899 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
900 | { |
901 | if (len < 0) | |
902 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
903 | return len; | |
904 | } | |
9e353e3b NIS |
905 | } |
906 | } | |
907 | ||
908 | IV | |
909 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
910 | { | |
00b02797 | 911 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 912 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
913 | return (new == (Off_t) -1) ? -1 : 0; |
914 | } | |
915 | ||
916 | Off_t | |
917 | PerlIOUnix_tell(PerlIO *f) | |
918 | { | |
00b02797 | 919 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
920 | } |
921 | ||
922 | IV | |
923 | PerlIOUnix_close(PerlIO *f) | |
924 | { | |
925 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
926 | int code = 0; | |
00b02797 | 927 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
928 | { |
929 | if (errno != EINTR) | |
930 | { | |
931 | code = -1; | |
932 | break; | |
933 | } | |
934 | } | |
935 | if (code == 0) | |
936 | { | |
937 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
938 | } | |
939 | return code; | |
940 | } | |
941 | ||
942 | PerlIO_funcs PerlIO_unix = { | |
943 | "unix", | |
944 | sizeof(PerlIOUnix), | |
945 | 0, | |
946 | PerlIOUnix_fileno, | |
947 | PerlIOUnix_fdopen, | |
948 | PerlIOUnix_open, | |
949 | PerlIOUnix_reopen, | |
06da4f11 NIS |
950 | PerlIOBase_pushed, |
951 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
952 | PerlIOUnix_read, |
953 | PerlIOBase_unread, | |
954 | PerlIOUnix_write, | |
955 | PerlIOUnix_seek, | |
956 | PerlIOUnix_tell, | |
957 | PerlIOUnix_close, | |
76ced9ad NIS |
958 | PerlIOBase_noop_ok, /* flush */ |
959 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
960 | PerlIOBase_eof, |
961 | PerlIOBase_error, | |
962 | PerlIOBase_clearerr, | |
963 | PerlIOBase_setlinebuf, | |
964 | NULL, /* get_base */ | |
965 | NULL, /* get_bufsiz */ | |
966 | NULL, /* get_ptr */ | |
967 | NULL, /* get_cnt */ | |
968 | NULL, /* set_ptrcnt */ | |
969 | }; | |
970 | ||
971 | /*--------------------------------------------------------------------------------------*/ | |
972 | /* stdio as a layer */ | |
973 | ||
974 | typedef struct | |
975 | { | |
976 | struct _PerlIO base; | |
977 | FILE * stdio; /* The stream */ | |
978 | } PerlIOStdio; | |
979 | ||
980 | IV | |
981 | PerlIOStdio_fileno(PerlIO *f) | |
982 | { | |
983 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
984 | } | |
985 | ||
986 | ||
987 | PerlIO * | |
06da4f11 | 988 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
989 | { |
990 | PerlIO *f = NULL; | |
c7fc522f NIS |
991 | int init = 0; |
992 | if (*mode == 'I') | |
993 | { | |
994 | init = 1; | |
995 | mode++; | |
996 | } | |
9e353e3b NIS |
997 | if (fd >= 0) |
998 | { | |
c7fc522f NIS |
999 | FILE *stdio = NULL; |
1000 | if (init) | |
1001 | { | |
1002 | switch(fd) | |
1003 | { | |
1004 | case 0: | |
1005 | stdio = stdin; | |
1006 | break; | |
1007 | case 1: | |
1008 | stdio = stdout; | |
1009 | break; | |
1010 | case 2: | |
1011 | stdio = stderr; | |
1012 | break; | |
1013 | } | |
1014 | } | |
1015 | else | |
1016 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
1017 | if (stdio) |
1018 | { | |
06da4f11 | 1019 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1020 | s->stdio = stdio; |
1021 | } | |
1022 | } | |
1023 | return f; | |
1024 | } | |
1025 | ||
1026 | #undef PerlIO_importFILE | |
1027 | PerlIO * | |
1028 | PerlIO_importFILE(FILE *stdio, int fl) | |
1029 | { | |
1030 | PerlIO *f = NULL; | |
1031 | if (stdio) | |
1032 | { | |
1033 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
1034 | s->stdio = stdio; | |
1035 | } | |
1036 | return f; | |
1037 | } | |
1038 | ||
1039 | PerlIO * | |
06da4f11 | 1040 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
1041 | { |
1042 | PerlIO *f = NULL; | |
1043 | FILE *stdio = fopen(path,mode); | |
1044 | if (stdio) | |
1045 | { | |
06da4f11 | 1046 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1047 | s->stdio = stdio; |
1048 | } | |
1049 | return f; | |
760ac839 LW |
1050 | } |
1051 | ||
6f9d8c32 | 1052 | int |
9e353e3b NIS |
1053 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1054 | { | |
1055 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1056 | FILE *stdio = freopen(path,mode,s->stdio); | |
1057 | if (!s->stdio) | |
1058 | return -1; | |
1059 | s->stdio = stdio; | |
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | SSize_t | |
1064 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1065 | { | |
1066 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 1067 | SSize_t got = 0; |
9e353e3b NIS |
1068 | if (count == 1) |
1069 | { | |
1070 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1071 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1072 | * Linux's stdio does not do that for fread() | |
1073 | */ | |
1074 | int ch = fgetc(s); | |
1075 | if (ch != EOF) | |
1076 | { | |
1077 | *buf = ch; | |
c7fc522f | 1078 | got = 1; |
9e353e3b | 1079 | } |
9e353e3b | 1080 | } |
c7fc522f NIS |
1081 | else |
1082 | got = fread(vbuf,1,count,s); | |
1083 | return got; | |
9e353e3b NIS |
1084 | } |
1085 | ||
1086 | SSize_t | |
1087 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1088 | { | |
1089 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1090 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1091 | SSize_t unread = 0; | |
1092 | while (count > 0) | |
1093 | { | |
1094 | int ch = *buf-- & 0xff; | |
1095 | if (ungetc(ch,s) != ch) | |
1096 | break; | |
1097 | unread++; | |
1098 | count--; | |
1099 | } | |
1100 | return unread; | |
1101 | } | |
1102 | ||
1103 | SSize_t | |
1104 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1105 | { | |
1106 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
1107 | } | |
1108 | ||
1109 | IV | |
1110 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1111 | { | |
c7fc522f NIS |
1112 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1113 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1114 | } |
1115 | ||
1116 | Off_t | |
1117 | PerlIOStdio_tell(PerlIO *f) | |
1118 | { | |
c7fc522f NIS |
1119 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1120 | return ftell(stdio); | |
9e353e3b NIS |
1121 | } |
1122 | ||
1123 | IV | |
1124 | PerlIOStdio_close(PerlIO *f) | |
1125 | { | |
1126 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1127 | } | |
1128 | ||
1129 | IV | |
1130 | PerlIOStdio_flush(PerlIO *f) | |
1131 | { | |
1132 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1133 | return fflush(stdio); | |
1134 | } | |
1135 | ||
1136 | IV | |
06da4f11 NIS |
1137 | PerlIOStdio_fill(PerlIO *f) |
1138 | { | |
1139 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1140 | int c; | |
1141 | if (fflush(stdio) != 0) | |
1142 | return EOF; | |
1143 | c = fgetc(stdio); | |
1144 | if (c == EOF || ungetc(c,stdio) != c) | |
1145 | return EOF; | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | IV | |
9e353e3b NIS |
1150 | PerlIOStdio_eof(PerlIO *f) |
1151 | { | |
1152 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1153 | } | |
1154 | ||
1155 | IV | |
1156 | PerlIOStdio_error(PerlIO *f) | |
1157 | { | |
1158 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1159 | } | |
1160 | ||
1161 | void | |
1162 | PerlIOStdio_clearerr(PerlIO *f) | |
1163 | { | |
1164 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1165 | } | |
1166 | ||
1167 | void | |
1168 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1169 | { | |
1170 | #ifdef HAS_SETLINEBUF | |
1171 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1172 | #else | |
1173 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1174 | #endif | |
1175 | } | |
1176 | ||
1177 | #ifdef FILE_base | |
1178 | STDCHAR * | |
1179 | PerlIOStdio_get_base(PerlIO *f) | |
1180 | { | |
1181 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1182 | return FILE_base(stdio); | |
1183 | } | |
1184 | ||
1185 | Size_t | |
1186 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1187 | { | |
1188 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1189 | return FILE_bufsiz(stdio); | |
1190 | } | |
1191 | #endif | |
1192 | ||
1193 | #ifdef USE_STDIO_PTR | |
1194 | STDCHAR * | |
1195 | PerlIOStdio_get_ptr(PerlIO *f) | |
1196 | { | |
1197 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1198 | return FILE_ptr(stdio); | |
1199 | } | |
1200 | ||
1201 | SSize_t | |
1202 | PerlIOStdio_get_cnt(PerlIO *f) | |
1203 | { | |
1204 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1205 | return FILE_cnt(stdio); | |
1206 | } | |
1207 | ||
1208 | void | |
1209 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1210 | { | |
1211 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1212 | if (ptr != NULL) | |
1213 | { | |
1214 | #ifdef STDIO_PTR_LVALUE | |
1215 | FILE_ptr(stdio) = ptr; | |
1216 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1217 | if (FILE_cnt(stdio) != (cnt)) | |
1218 | { | |
1219 | dTHX; | |
1220 | assert(FILE_cnt(stdio) == (cnt)); | |
1221 | } | |
1222 | #endif | |
1223 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1224 | /* Setting ptr _does_ change cnt - we are done */ | |
1225 | return; | |
1226 | #endif | |
1227 | #else /* STDIO_PTR_LVALUE */ | |
1228 | abort(); | |
1229 | #endif /* STDIO_PTR_LVALUE */ | |
1230 | } | |
1231 | /* Now (or only) set cnt */ | |
1232 | #ifdef STDIO_CNT_LVALUE | |
1233 | FILE_cnt(stdio) = cnt; | |
1234 | #else /* STDIO_CNT_LVALUE */ | |
1235 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1236 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1237 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1238 | abort(); | |
1239 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1240 | #endif /* STDIO_CNT_LVALUE */ | |
1241 | } | |
1242 | ||
1243 | #endif | |
1244 | ||
1245 | PerlIO_funcs PerlIO_stdio = { | |
1246 | "stdio", | |
1247 | sizeof(PerlIOStdio), | |
1248 | 0, | |
1249 | PerlIOStdio_fileno, | |
1250 | PerlIOStdio_fdopen, | |
1251 | PerlIOStdio_open, | |
1252 | PerlIOStdio_reopen, | |
06da4f11 NIS |
1253 | PerlIOBase_pushed, |
1254 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1255 | PerlIOStdio_read, |
1256 | PerlIOStdio_unread, | |
1257 | PerlIOStdio_write, | |
1258 | PerlIOStdio_seek, | |
1259 | PerlIOStdio_tell, | |
1260 | PerlIOStdio_close, | |
1261 | PerlIOStdio_flush, | |
06da4f11 | 1262 | PerlIOStdio_fill, |
9e353e3b NIS |
1263 | PerlIOStdio_eof, |
1264 | PerlIOStdio_error, | |
1265 | PerlIOStdio_clearerr, | |
1266 | PerlIOStdio_setlinebuf, | |
1267 | #ifdef FILE_base | |
1268 | PerlIOStdio_get_base, | |
1269 | PerlIOStdio_get_bufsiz, | |
1270 | #else | |
1271 | NULL, | |
1272 | NULL, | |
1273 | #endif | |
1274 | #ifdef USE_STDIO_PTR | |
1275 | PerlIOStdio_get_ptr, | |
1276 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 1277 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
1278 | PerlIOStdio_set_ptrcnt |
1279 | #else /* STDIO_PTR_LVALUE */ | |
1280 | NULL | |
1281 | #endif /* STDIO_PTR_LVALUE */ | |
1282 | #else /* USE_STDIO_PTR */ | |
1283 | NULL, | |
1284 | NULL, | |
1285 | NULL | |
1286 | #endif /* USE_STDIO_PTR */ | |
1287 | }; | |
1288 | ||
1289 | #undef PerlIO_exportFILE | |
1290 | FILE * | |
1291 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1292 | { | |
1293 | PerlIO_flush(f); | |
1294 | /* Should really push stdio discipline when we have them */ | |
1295 | return fdopen(PerlIO_fileno(f),"r+"); | |
1296 | } | |
1297 | ||
1298 | #undef PerlIO_findFILE | |
1299 | FILE * | |
1300 | PerlIO_findFILE(PerlIO *f) | |
1301 | { | |
1302 | return PerlIO_exportFILE(f,0); | |
1303 | } | |
1304 | ||
1305 | #undef PerlIO_releaseFILE | |
1306 | void | |
1307 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1308 | { | |
1309 | } | |
1310 | ||
1311 | /*--------------------------------------------------------------------------------------*/ | |
1312 | /* perlio buffer layer */ | |
1313 | ||
9e353e3b | 1314 | PerlIO * |
06da4f11 | 1315 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b NIS |
1316 | { |
1317 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1318 | int init = 0; |
1319 | PerlIO *f; | |
1320 | if (*mode == 'I') | |
1321 | { | |
1322 | init = 1; | |
1323 | mode++; | |
1324 | } | |
06da4f11 | 1325 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 NIS |
1326 | if (f) |
1327 | { | |
c7fc522f NIS |
1328 | /* Initial stderr is unbuffered */ |
1329 | if (!init || fd != 2) | |
1330 | { | |
06da4f11 | 1331 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c7fc522f NIS |
1332 | b->posn = PerlIO_tell(PerlIONext(f)); |
1333 | } | |
6f9d8c32 | 1334 | } |
9e353e3b | 1335 | return f; |
760ac839 LW |
1336 | } |
1337 | ||
9e353e3b | 1338 | PerlIO * |
06da4f11 | 1339 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 | 1340 | { |
9e353e3b | 1341 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 | 1342 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b NIS |
1343 | if (f) |
1344 | { | |
06da4f11 | 1345 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c3d7c7c9 | 1346 | b->posn = PerlIO_tell(PerlIONext(f)); |
9e353e3b NIS |
1347 | } |
1348 | return f; | |
1349 | } | |
1350 | ||
1351 | int | |
c3d7c7c9 | 1352 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b | 1353 | { |
c3d7c7c9 NIS |
1354 | PerlIO *next = PerlIONext(f); |
1355 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); | |
1356 | if (code = 0) | |
1357 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode); | |
1358 | if (code == 0) | |
1359 | { | |
1360 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1361 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1362 | } | |
1363 | return code; | |
9e353e3b NIS |
1364 | } |
1365 | ||
9e353e3b NIS |
1366 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1367 | read or write state | |
1368 | */ | |
1369 | IV | |
1370 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1371 | { |
9e353e3b NIS |
1372 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1373 | int code = 0; | |
1374 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1375 | { | |
1376 | /* write() the buffer */ | |
1377 | STDCHAR *p = b->buf; | |
1378 | int count; | |
1379 | while (p < b->ptr) | |
1380 | { | |
1381 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1382 | if (count > 0) | |
1383 | { | |
1384 | p += count; | |
1385 | } | |
1386 | else if (count < 0) | |
1387 | { | |
1388 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1389 | code = -1; | |
1390 | break; | |
1391 | } | |
1392 | } | |
1393 | b->posn += (p - b->buf); | |
1394 | } | |
1395 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1396 | { |
9e353e3b NIS |
1397 | /* Note position change */ |
1398 | b->posn += (b->ptr - b->buf); | |
1399 | if (b->ptr < b->end) | |
1400 | { | |
1401 | /* We did not consume all of it */ | |
1402 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1403 | { | |
1404 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1405 | } | |
1406 | } | |
6f9d8c32 | 1407 | } |
9e353e3b NIS |
1408 | b->ptr = b->end = b->buf; |
1409 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1410 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1411 | code = -1; | |
1412 | return code; | |
6f9d8c32 NIS |
1413 | } |
1414 | ||
06da4f11 NIS |
1415 | IV |
1416 | PerlIOBuf_fill(PerlIO *f) | |
1417 | { | |
1418 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1419 | SSize_t avail; | |
1420 | if (PerlIO_flush(f) != 0) | |
1421 | return -1; | |
1422 | b->ptr = b->end = b->buf; | |
1423 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
1424 | if (avail <= 0) | |
1425 | { | |
1426 | if (avail == 0) | |
1427 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1428 | else | |
1429 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1430 | return -1; | |
1431 | } | |
1432 | b->end = b->buf+avail; | |
1433 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
1434 | return 0; | |
1435 | } | |
1436 | ||
6f9d8c32 | 1437 | SSize_t |
9e353e3b | 1438 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1439 | { |
9e353e3b | 1440 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1441 | STDCHAR *buf = (STDCHAR *) vbuf; |
1442 | if (f) | |
1443 | { | |
1444 | Size_t got = 0; | |
9e353e3b | 1445 | if (!b->ptr) |
06da4f11 | 1446 | PerlIO_get_base(f); |
9e353e3b | 1447 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf | 1448 | return 0; |
6f9d8c32 NIS |
1449 | while (count > 0) |
1450 | { | |
9e353e3b | 1451 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1452 | if ((SSize_t) count < avail) |
1453 | avail = count; | |
1454 | if (avail > 0) | |
1455 | { | |
9e353e3b | 1456 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1457 | got += avail; |
9e353e3b | 1458 | b->ptr += avail; |
6f9d8c32 NIS |
1459 | count -= avail; |
1460 | buf += avail; | |
1461 | } | |
9e353e3b | 1462 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1463 | { |
06da4f11 NIS |
1464 | if (PerlIO_fill(f) != 0) |
1465 | break; | |
6f9d8c32 NIS |
1466 | } |
1467 | } | |
1468 | return got; | |
1469 | } | |
1470 | return 0; | |
1471 | } | |
1472 | ||
9e353e3b NIS |
1473 | SSize_t |
1474 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1475 | { |
9e353e3b NIS |
1476 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1477 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1478 | SSize_t unread = 0; | |
1479 | SSize_t avail; | |
9e353e3b NIS |
1480 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1481 | PerlIO_flush(f); | |
06da4f11 NIS |
1482 | if (!b->buf) |
1483 | PerlIO_get_base(f); | |
9e353e3b NIS |
1484 | if (b->buf) |
1485 | { | |
1486 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1487 | { | |
1488 | avail = (b->ptr - b->buf); | |
1489 | if (avail > (SSize_t) count) | |
1490 | avail = count; | |
1491 | b->ptr -= avail; | |
1492 | } | |
1493 | else | |
1494 | { | |
1495 | avail = b->bufsiz; | |
1496 | if (avail > (SSize_t) count) | |
1497 | avail = count; | |
1498 | b->end = b->ptr + avail; | |
1499 | } | |
1500 | if (avail > 0) | |
1501 | { | |
1502 | buf -= avail; | |
1503 | if (buf != b->ptr) | |
1504 | { | |
1505 | Copy(buf,b->ptr,avail,char); | |
1506 | } | |
1507 | count -= avail; | |
1508 | unread += avail; | |
1509 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1510 | } | |
1511 | } | |
1512 | return unread; | |
760ac839 LW |
1513 | } |
1514 | ||
9e353e3b NIS |
1515 | SSize_t |
1516 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1517 | { |
9e353e3b NIS |
1518 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1519 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1520 | Size_t written = 0; | |
1521 | if (!b->buf) | |
06da4f11 | 1522 | PerlIO_get_base(f); |
9e353e3b NIS |
1523 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1524 | return 0; | |
1525 | while (count > 0) | |
1526 | { | |
1527 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1528 | if ((SSize_t) count < avail) | |
1529 | avail = count; | |
1530 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1531 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1532 | { | |
1533 | while (avail > 0) | |
1534 | { | |
1535 | int ch = *buf++; | |
1536 | *(b->ptr)++ = ch; | |
1537 | count--; | |
1538 | avail--; | |
1539 | written++; | |
1540 | if (ch == '\n') | |
1541 | { | |
1542 | PerlIO_flush(f); | |
1543 | break; | |
1544 | } | |
1545 | } | |
1546 | } | |
1547 | else | |
1548 | { | |
1549 | if (avail) | |
1550 | { | |
1551 | Copy(buf,b->ptr,avail,char); | |
1552 | count -= avail; | |
1553 | buf += avail; | |
1554 | written += avail; | |
1555 | b->ptr += avail; | |
1556 | } | |
1557 | } | |
1558 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1559 | PerlIO_flush(f); | |
1560 | } | |
1561 | return written; | |
1562 | } | |
1563 | ||
1564 | IV | |
1565 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1566 | { | |
1567 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
06da4f11 | 1568 | int code = PerlIO_flush(f); |
9e353e3b NIS |
1569 | if (code == 0) |
1570 | { | |
1571 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1572 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1573 | if (code == 0) | |
1574 | { | |
1575 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1576 | } | |
1577 | } | |
1578 | return code; | |
1579 | } | |
1580 | ||
1581 | Off_t | |
1582 | PerlIOBuf_tell(PerlIO *f) | |
1583 | { | |
1584 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1585 | Off_t posn = b->posn; | |
1586 | if (b->buf) | |
1587 | posn += (b->ptr - b->buf); | |
1588 | return posn; | |
1589 | } | |
1590 | ||
1591 | IV | |
1592 | PerlIOBuf_close(PerlIO *f) | |
1593 | { | |
1594 | IV code = PerlIOBase_close(f); | |
1595 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1596 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1597 | { |
9e353e3b | 1598 | Safefree(b->buf); |
6f9d8c32 | 1599 | } |
9e353e3b NIS |
1600 | b->buf = NULL; |
1601 | b->ptr = b->end = b->buf; | |
1602 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1603 | return code; | |
760ac839 LW |
1604 | } |
1605 | ||
760ac839 | 1606 | void |
9e353e3b | 1607 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1608 | { |
6f9d8c32 NIS |
1609 | if (f) |
1610 | { | |
9e353e3b | 1611 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1612 | } |
760ac839 LW |
1613 | } |
1614 | ||
9e353e3b NIS |
1615 | STDCHAR * |
1616 | PerlIOBuf_get_ptr(PerlIO *f) | |
1617 | { | |
1618 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1619 | if (!b->buf) | |
06da4f11 | 1620 | PerlIO_get_base(f); |
9e353e3b NIS |
1621 | return b->ptr; |
1622 | } | |
1623 | ||
05d1247b | 1624 | SSize_t |
9e353e3b NIS |
1625 | PerlIOBuf_get_cnt(PerlIO *f) |
1626 | { | |
1627 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1628 | if (!b->buf) | |
06da4f11 | 1629 | PerlIO_get_base(f); |
9e353e3b NIS |
1630 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1631 | return (b->end - b->ptr); | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1635 | STDCHAR * | |
1636 | PerlIOBuf_get_base(PerlIO *f) | |
1637 | { | |
1638 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1639 | if (!b->buf) | |
06da4f11 NIS |
1640 | { |
1641 | if (!b->bufsiz) | |
1642 | b->bufsiz = 4096; | |
1643 | New('B',b->buf,b->bufsiz,STDCHAR); | |
1644 | if (!b->buf) | |
1645 | { | |
1646 | b->buf = (STDCHAR *)&b->oneword; | |
1647 | b->bufsiz = sizeof(b->oneword); | |
1648 | } | |
1649 | b->ptr = b->buf; | |
1650 | b->end = b->ptr; | |
1651 | } | |
9e353e3b NIS |
1652 | return b->buf; |
1653 | } | |
1654 | ||
1655 | Size_t | |
1656 | PerlIOBuf_bufsiz(PerlIO *f) | |
1657 | { | |
1658 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1659 | if (!b->buf) | |
06da4f11 | 1660 | PerlIO_get_base(f); |
9e353e3b NIS |
1661 | return (b->end - b->buf); |
1662 | } | |
1663 | ||
1664 | void | |
05d1247b | 1665 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
1666 | { |
1667 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1668 | if (!b->buf) | |
06da4f11 | 1669 | PerlIO_get_base(f); |
9e353e3b NIS |
1670 | b->ptr = ptr; |
1671 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1672 | { |
9e353e3b NIS |
1673 | dTHX; |
1674 | assert(PerlIO_get_cnt(f) == cnt); | |
1675 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1676 | } |
9e353e3b | 1677 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1678 | } |
1679 | ||
9e353e3b NIS |
1680 | PerlIO_funcs PerlIO_perlio = { |
1681 | "perlio", | |
1682 | sizeof(PerlIOBuf), | |
1683 | 0, | |
1684 | PerlIOBase_fileno, | |
1685 | PerlIOBuf_fdopen, | |
1686 | PerlIOBuf_open, | |
c3d7c7c9 | 1687 | PerlIOBuf_reopen, |
06da4f11 NIS |
1688 | PerlIOBase_pushed, |
1689 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1690 | PerlIOBuf_read, |
1691 | PerlIOBuf_unread, | |
1692 | PerlIOBuf_write, | |
1693 | PerlIOBuf_seek, | |
1694 | PerlIOBuf_tell, | |
1695 | PerlIOBuf_close, | |
1696 | PerlIOBuf_flush, | |
06da4f11 | 1697 | PerlIOBuf_fill, |
9e353e3b NIS |
1698 | PerlIOBase_eof, |
1699 | PerlIOBase_error, | |
1700 | PerlIOBase_clearerr, | |
1701 | PerlIOBuf_setlinebuf, | |
1702 | PerlIOBuf_get_base, | |
1703 | PerlIOBuf_bufsiz, | |
1704 | PerlIOBuf_get_ptr, | |
1705 | PerlIOBuf_get_cnt, | |
1706 | PerlIOBuf_set_ptrcnt, | |
1707 | }; | |
1708 | ||
06da4f11 NIS |
1709 | #ifdef HAS_MMAP |
1710 | /*--------------------------------------------------------------------------------------*/ | |
1711 | /* mmap as "buffer" layer */ | |
1712 | ||
1713 | typedef struct | |
1714 | { | |
1715 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 1716 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
1717 | Size_t len; /* mapped length */ |
1718 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
c3d7c7c9 | 1719 | |
06da4f11 NIS |
1720 | } PerlIOMmap; |
1721 | ||
c3d7c7c9 NIS |
1722 | static size_t page_size = 0; |
1723 | ||
06da4f11 NIS |
1724 | IV |
1725 | PerlIOMmap_map(PerlIO *f) | |
1726 | { | |
68d873c6 | 1727 | dTHX; |
06da4f11 NIS |
1728 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1729 | PerlIOBuf *b = &m->base; | |
1730 | IV flags = PerlIOBase(f)->flags; | |
1731 | IV code = 0; | |
1732 | if (m->len) | |
1733 | abort(); | |
1734 | if (flags & PERLIO_F_CANREAD) | |
1735 | { | |
1736 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1737 | int fd = PerlIO_fileno(f); | |
1738 | struct stat st; | |
1739 | code = fstat(fd,&st); | |
1740 | if (code == 0 && S_ISREG(st.st_mode)) | |
1741 | { | |
1742 | SSize_t len = st.st_size - b->posn; | |
1743 | if (len > 0) | |
1744 | { | |
c3d7c7c9 | 1745 | Off_t posn; |
68d873c6 JH |
1746 | if (!page_size) { |
1747 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
1748 | { | |
1749 | SETERRNO(0,SS$_NORMAL); | |
1750 | # ifdef _SC_PAGESIZE | |
1751 | page_size = sysconf(_SC_PAGESIZE); | |
1752 | # else | |
1753 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 1754 | # endif |
68d873c6 JH |
1755 | if ((long)page_size < 0) { |
1756 | if (errno) { | |
1757 | SV *error = ERRSV; | |
1758 | char *msg; | |
1759 | STRLEN n_a; | |
1760 | (void)SvUPGRADE(error, SVt_PV); | |
1761 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 1762 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
1763 | } |
1764 | else | |
14aaf8e8 | 1765 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
1766 | } |
1767 | } | |
1768 | #else | |
1769 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 1770 | page_size = getpagesize(); |
68d873c6 JH |
1771 | # else |
1772 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
1773 | page_size = PAGESIZE; /* compiletime, bad */ | |
1774 | # endif | |
1775 | # endif | |
1776 | #endif | |
1777 | if ((IV)page_size <= 0) | |
14aaf8e8 | 1778 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 1779 | } |
c3d7c7c9 NIS |
1780 | if (b->posn < 0) |
1781 | { | |
1782 | /* This is a hack - should never happen - open should have set it ! */ | |
1783 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1784 | } | |
1785 | posn = (b->posn / page_size) * page_size; | |
1786 | len = st.st_size - posn; | |
1787 | m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn); | |
1788 | if (m->mptr && m->mptr != (Mmap_t) -1) | |
06da4f11 NIS |
1789 | { |
1790 | #if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) | |
c3d7c7c9 | 1791 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 1792 | #endif |
c3d7c7c9 NIS |
1793 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
1794 | b->end = ((STDCHAR *)m->mptr) + len; | |
1795 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
1796 | b->ptr = b->buf; | |
1797 | m->len = len; | |
06da4f11 NIS |
1798 | } |
1799 | else | |
1800 | { | |
1801 | b->buf = NULL; | |
1802 | } | |
1803 | } | |
1804 | else | |
1805 | { | |
1806 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
1807 | b->buf = NULL; | |
1808 | b->ptr = b->end = b->ptr; | |
1809 | code = -1; | |
1810 | } | |
1811 | } | |
1812 | } | |
1813 | return code; | |
1814 | } | |
1815 | ||
1816 | IV | |
1817 | PerlIOMmap_unmap(PerlIO *f) | |
1818 | { | |
1819 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1820 | PerlIOBuf *b = &m->base; | |
1821 | IV code = 0; | |
1822 | if (m->len) | |
1823 | { | |
1824 | if (b->buf) | |
1825 | { | |
c3d7c7c9 NIS |
1826 | code = munmap(m->mptr, m->len); |
1827 | b->buf = NULL; | |
1828 | m->len = 0; | |
1829 | m->mptr = NULL; | |
06da4f11 NIS |
1830 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
1831 | code = -1; | |
06da4f11 NIS |
1832 | } |
1833 | b->ptr = b->end = b->buf; | |
1834 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1835 | } | |
1836 | return code; | |
1837 | } | |
1838 | ||
1839 | STDCHAR * | |
1840 | PerlIOMmap_get_base(PerlIO *f) | |
1841 | { | |
1842 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1843 | PerlIOBuf *b = &m->base; | |
1844 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
1845 | { | |
1846 | /* Already have a readbuffer in progress */ | |
1847 | return b->buf; | |
1848 | } | |
1849 | if (b->buf) | |
1850 | { | |
1851 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
1852 | m->bbuf = b->buf; /* save it in case we need it again */ | |
1853 | b->buf = NULL; /* Clear to trigger below */ | |
1854 | } | |
1855 | if (!b->buf) | |
1856 | { | |
1857 | PerlIOMmap_map(f); /* Try and map it */ | |
1858 | if (!b->buf) | |
1859 | { | |
1860 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
1861 | b->buf = m->bbuf; | |
1862 | } | |
1863 | } | |
1864 | b->ptr = b->end = b->buf; | |
1865 | if (b->buf) | |
1866 | return b->buf; | |
1867 | return PerlIOBuf_get_base(f); | |
1868 | } | |
1869 | ||
1870 | SSize_t | |
1871 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1872 | { | |
1873 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1874 | PerlIOBuf *b = &m->base; | |
1875 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1876 | PerlIO_flush(f); | |
1877 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
1878 | { | |
1879 | b->ptr -= count; | |
1880 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1881 | return count; | |
1882 | } | |
1883 | if (m->len) | |
1884 | { | |
4a4a6116 | 1885 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 1886 | PerlIO_flush(f); |
c3d7c7c9 NIS |
1887 | /* If flush took the "buffer" see if we have one from before */ |
1888 | if (!b->buf && m->bbuf) | |
1889 | b->buf = m->bbuf; | |
1890 | if (!b->buf) | |
1891 | { | |
1892 | PerlIOBuf_get_base(f); | |
1893 | m->bbuf = b->buf; | |
1894 | } | |
06da4f11 NIS |
1895 | } |
1896 | return PerlIOBuf_unread(f,vbuf,count); | |
1897 | } | |
1898 | ||
1899 | SSize_t | |
1900 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
1901 | { | |
1902 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1903 | PerlIOBuf *b = &m->base; | |
1904 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
1905 | { | |
1906 | /* No, or wrong sort of, buffer */ | |
1907 | if (m->len) | |
1908 | { | |
1909 | if (PerlIOMmap_unmap(f) != 0) | |
1910 | return 0; | |
1911 | } | |
1912 | /* If unmap took the "buffer" see if we have one from before */ | |
1913 | if (!b->buf && m->bbuf) | |
1914 | b->buf = m->bbuf; | |
1915 | if (!b->buf) | |
1916 | { | |
1917 | PerlIOBuf_get_base(f); | |
1918 | m->bbuf = b->buf; | |
1919 | } | |
1920 | } | |
1921 | return PerlIOBuf_write(f,vbuf,count); | |
1922 | } | |
1923 | ||
1924 | IV | |
1925 | PerlIOMmap_flush(PerlIO *f) | |
1926 | { | |
1927 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1928 | PerlIOBuf *b = &m->base; | |
1929 | IV code = PerlIOBuf_flush(f); | |
1930 | /* Now we are "synced" at PerlIOBuf level */ | |
1931 | if (b->buf) | |
1932 | { | |
1933 | if (m->len) | |
1934 | { | |
1935 | /* Unmap the buffer */ | |
1936 | if (PerlIOMmap_unmap(f) != 0) | |
1937 | code = -1; | |
1938 | } | |
1939 | else | |
1940 | { | |
1941 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
1942 | * remember it in case we need one later | |
1943 | */ | |
1944 | m->bbuf = b->buf; | |
1945 | } | |
1946 | } | |
06da4f11 NIS |
1947 | return code; |
1948 | } | |
1949 | ||
1950 | IV | |
1951 | PerlIOMmap_fill(PerlIO *f) | |
1952 | { | |
1953 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1954 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
1955 | if (code == 0 && !b->buf) |
1956 | { | |
1957 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
1958 | } |
1959 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
1960 | { | |
1961 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
1962 | } |
1963 | return code; | |
1964 | } | |
1965 | ||
1966 | IV | |
1967 | PerlIOMmap_close(PerlIO *f) | |
1968 | { | |
1969 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1970 | PerlIOBuf *b = &m->base; | |
1971 | IV code = PerlIO_flush(f); | |
1972 | if (m->bbuf) | |
1973 | { | |
1974 | b->buf = m->bbuf; | |
1975 | m->bbuf = NULL; | |
1976 | b->ptr = b->end = b->buf; | |
1977 | } | |
1978 | if (PerlIOBuf_close(f) != 0) | |
1979 | code = -1; | |
06da4f11 NIS |
1980 | return code; |
1981 | } | |
1982 | ||
1983 | ||
1984 | PerlIO_funcs PerlIO_mmap = { | |
1985 | "mmap", | |
1986 | sizeof(PerlIOMmap), | |
1987 | 0, | |
1988 | PerlIOBase_fileno, | |
1989 | PerlIOBuf_fdopen, | |
1990 | PerlIOBuf_open, | |
c3d7c7c9 | 1991 | PerlIOBuf_reopen, |
06da4f11 NIS |
1992 | PerlIOBase_pushed, |
1993 | PerlIOBase_noop_ok, | |
1994 | PerlIOBuf_read, | |
1995 | PerlIOMmap_unread, | |
1996 | PerlIOMmap_write, | |
1997 | PerlIOBuf_seek, | |
1998 | PerlIOBuf_tell, | |
1999 | PerlIOBuf_close, | |
2000 | PerlIOMmap_flush, | |
2001 | PerlIOMmap_fill, | |
2002 | PerlIOBase_eof, | |
2003 | PerlIOBase_error, | |
2004 | PerlIOBase_clearerr, | |
2005 | PerlIOBuf_setlinebuf, | |
2006 | PerlIOMmap_get_base, | |
2007 | PerlIOBuf_bufsiz, | |
2008 | PerlIOBuf_get_ptr, | |
2009 | PerlIOBuf_get_cnt, | |
2010 | PerlIOBuf_set_ptrcnt, | |
2011 | }; | |
2012 | ||
2013 | #endif /* HAS_MMAP */ | |
2014 | ||
9e353e3b NIS |
2015 | void |
2016 | PerlIO_init(void) | |
760ac839 | 2017 | { |
9e353e3b | 2018 | if (!_perlio) |
6f9d8c32 | 2019 | { |
9e353e3b | 2020 | atexit(&PerlIO_cleanup); |
6f9d8c32 | 2021 | } |
760ac839 LW |
2022 | } |
2023 | ||
9e353e3b NIS |
2024 | #undef PerlIO_stdin |
2025 | PerlIO * | |
2026 | PerlIO_stdin(void) | |
2027 | { | |
2028 | if (!_perlio) | |
f3862f8b | 2029 | PerlIO_stdstreams(); |
05d1247b | 2030 | return &_perlio[1]; |
9e353e3b NIS |
2031 | } |
2032 | ||
2033 | #undef PerlIO_stdout | |
2034 | PerlIO * | |
2035 | PerlIO_stdout(void) | |
2036 | { | |
2037 | if (!_perlio) | |
f3862f8b | 2038 | PerlIO_stdstreams(); |
05d1247b | 2039 | return &_perlio[2]; |
9e353e3b NIS |
2040 | } |
2041 | ||
2042 | #undef PerlIO_stderr | |
2043 | PerlIO * | |
2044 | PerlIO_stderr(void) | |
2045 | { | |
2046 | if (!_perlio) | |
f3862f8b | 2047 | PerlIO_stdstreams(); |
05d1247b | 2048 | return &_perlio[3]; |
9e353e3b NIS |
2049 | } |
2050 | ||
2051 | /*--------------------------------------------------------------------------------------*/ | |
2052 | ||
2053 | #undef PerlIO_getname | |
2054 | char * | |
2055 | PerlIO_getname(PerlIO *f, char *buf) | |
2056 | { | |
2057 | dTHX; | |
2058 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
2059 | return NULL; | |
2060 | } | |
2061 | ||
2062 | ||
2063 | /*--------------------------------------------------------------------------------------*/ | |
2064 | /* Functions which can be called on any kind of PerlIO implemented | |
2065 | in terms of above | |
2066 | */ | |
2067 | ||
2068 | #undef PerlIO_getc | |
6f9d8c32 | 2069 | int |
9e353e3b | 2070 | PerlIO_getc(PerlIO *f) |
760ac839 | 2071 | { |
313ca112 NIS |
2072 | STDCHAR buf[1]; |
2073 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 2074 | if (count == 1) |
313ca112 NIS |
2075 | { |
2076 | return (unsigned char) buf[0]; | |
2077 | } | |
2078 | return EOF; | |
2079 | } | |
2080 | ||
2081 | #undef PerlIO_ungetc | |
2082 | int | |
2083 | PerlIO_ungetc(PerlIO *f, int ch) | |
2084 | { | |
2085 | if (ch != EOF) | |
2086 | { | |
2087 | STDCHAR buf = ch; | |
2088 | if (PerlIO_unread(f,&buf,1) == 1) | |
2089 | return ch; | |
2090 | } | |
2091 | return EOF; | |
760ac839 LW |
2092 | } |
2093 | ||
9e353e3b NIS |
2094 | #undef PerlIO_putc |
2095 | int | |
2096 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 2097 | { |
9e353e3b NIS |
2098 | STDCHAR buf = ch; |
2099 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
2100 | } |
2101 | ||
9e353e3b | 2102 | #undef PerlIO_puts |
760ac839 | 2103 | int |
9e353e3b | 2104 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 2105 | { |
9e353e3b NIS |
2106 | STRLEN len = strlen(s); |
2107 | return PerlIO_write(f,s,len); | |
760ac839 LW |
2108 | } |
2109 | ||
2110 | #undef PerlIO_rewind | |
2111 | void | |
c78749f2 | 2112 | PerlIO_rewind(PerlIO *f) |
760ac839 | 2113 | { |
6f9d8c32 | 2114 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 2115 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
2116 | } |
2117 | ||
2118 | #undef PerlIO_vprintf | |
2119 | int | |
2120 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
2121 | { | |
2122 | dTHX; | |
bb9950b7 | 2123 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
2124 | char *s; |
2125 | STRLEN len; | |
2126 | sv_vcatpvf(sv, fmt, &ap); | |
2127 | s = SvPV(sv,len); | |
bb9950b7 | 2128 | return PerlIO_write(f,s,len); |
760ac839 LW |
2129 | } |
2130 | ||
2131 | #undef PerlIO_printf | |
6f9d8c32 | 2132 | int |
760ac839 | 2133 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
2134 | { |
2135 | va_list ap; | |
2136 | int result; | |
760ac839 | 2137 | va_start(ap,fmt); |
6f9d8c32 | 2138 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
2139 | va_end(ap); |
2140 | return result; | |
2141 | } | |
2142 | ||
2143 | #undef PerlIO_stdoutf | |
6f9d8c32 | 2144 | int |
760ac839 | 2145 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
2146 | { |
2147 | va_list ap; | |
2148 | int result; | |
760ac839 | 2149 | va_start(ap,fmt); |
760ac839 LW |
2150 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
2151 | va_end(ap); | |
2152 | return result; | |
2153 | } | |
2154 | ||
2155 | #undef PerlIO_tmpfile | |
2156 | PerlIO * | |
c78749f2 | 2157 | PerlIO_tmpfile(void) |
760ac839 | 2158 | { |
6f9d8c32 | 2159 | dTHX; |
b1ef6e3b | 2160 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
2161 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
2162 | int fd = mkstemp(SvPVX(sv)); | |
2163 | PerlIO *f = NULL; | |
2164 | if (fd >= 0) | |
2165 | { | |
b1ef6e3b | 2166 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
2167 | if (f) |
2168 | { | |
9e353e3b | 2169 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 2170 | } |
00b02797 | 2171 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
2172 | SvREFCNT_dec(sv); |
2173 | } | |
2174 | return f; | |
760ac839 LW |
2175 | } |
2176 | ||
6f9d8c32 NIS |
2177 | #undef HAS_FSETPOS |
2178 | #undef HAS_FGETPOS | |
2179 | ||
760ac839 LW |
2180 | #endif /* USE_SFIO */ |
2181 | #endif /* PERLIO_IS_STDIO */ | |
2182 | ||
9e353e3b NIS |
2183 | /*======================================================================================*/ |
2184 | /* Now some functions in terms of above which may be needed even if | |
2185 | we are not in true PerlIO mode | |
2186 | */ | |
2187 | ||
760ac839 LW |
2188 | #ifndef HAS_FSETPOS |
2189 | #undef PerlIO_setpos | |
2190 | int | |
c78749f2 | 2191 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 2192 | { |
6f9d8c32 | 2193 | return PerlIO_seek(f,*pos,0); |
760ac839 | 2194 | } |
c411622e | 2195 | #else |
2196 | #ifndef PERLIO_IS_STDIO | |
2197 | #undef PerlIO_setpos | |
2198 | int | |
c78749f2 | 2199 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 2200 | { |
2d4389e4 | 2201 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2202 | return fsetpos64(f, pos); |
2203 | #else | |
c411622e | 2204 | return fsetpos(f, pos); |
d9b3e12d | 2205 | #endif |
c411622e | 2206 | } |
2207 | #endif | |
760ac839 LW |
2208 | #endif |
2209 | ||
2210 | #ifndef HAS_FGETPOS | |
2211 | #undef PerlIO_getpos | |
2212 | int | |
c78749f2 | 2213 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
2214 | { |
2215 | *pos = PerlIO_tell(f); | |
a17c7222 | 2216 | return *pos == -1 ? -1 : 0; |
760ac839 | 2217 | } |
c411622e | 2218 | #else |
2219 | #ifndef PERLIO_IS_STDIO | |
2220 | #undef PerlIO_getpos | |
2221 | int | |
c78749f2 | 2222 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 2223 | { |
2d4389e4 | 2224 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2225 | return fgetpos64(f, pos); |
2226 | #else | |
c411622e | 2227 | return fgetpos(f, pos); |
d9b3e12d | 2228 | #endif |
c411622e | 2229 | } |
2230 | #endif | |
760ac839 LW |
2231 | #endif |
2232 | ||
2233 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
2234 | ||
2235 | int | |
c78749f2 | 2236 | vprintf(char *pat, char *args) |
662a7e3f CS |
2237 | { |
2238 | _doprnt(pat, args, stdout); | |
2239 | return 0; /* wrong, but perl doesn't use the return value */ | |
2240 | } | |
2241 | ||
2242 | int | |
c78749f2 | 2243 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
2244 | { |
2245 | _doprnt(pat, args, fd); | |
2246 | return 0; /* wrong, but perl doesn't use the return value */ | |
2247 | } | |
2248 | ||
2249 | #endif | |
2250 | ||
2251 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 2252 | int |
8ac85365 | 2253 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
2254 | { |
2255 | int val = vsprintf(s, fmt, ap); | |
2256 | if (n >= 0) | |
2257 | { | |
8c86a920 | 2258 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 2259 | { |
bf49b057 | 2260 | dTHX; |
fb4a9925 JH |
2261 | (void)PerlIO_puts(Perl_error_log, |
2262 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 2263 | my_exit(1); |
760ac839 LW |
2264 | } |
2265 | } | |
2266 | return val; | |
2267 | } | |
2268 | #endif | |
2269 | ||
2270 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 2271 | int |
760ac839 | 2272 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
2273 | { |
2274 | va_list ap; | |
2275 | int result; | |
760ac839 | 2276 | va_start(ap,fmt); |
760ac839 LW |
2277 | result = PerlIO_vsprintf(s, n, fmt, ap); |
2278 | va_end(ap); | |
2279 | return result; | |
2280 | } | |
2281 | #endif | |
2282 | ||
c5be433b GS |
2283 | #endif /* !PERL_IMPLICIT_SYS */ |
2284 |