Commit | Line | Data |
---|---|---|
760ac839 LW |
1 | /* perlio.c |
2 | * | |
26fb694e | 3 | * Copyright (c) 1996-2001, 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 | ||
7bcba3d4 NIS |
10 | /* If we have ActivePerl-like PERL_IMPLICIT_SYS then we need |
11 | a dTHX to get at the dispatch tables, even when we do not | |
12 | need it for other reasons. | |
13 | Invent a dSYS macro to abstract this out | |
14 | */ | |
15 | #ifdef PERL_IMPLICIT_SYS | |
16 | #define dSYS dTHX | |
17 | #else | |
18 | #define dSYS dNOOP | |
19 | #endif | |
20 | ||
760ac839 | 21 | #define VOIDUSED 1 |
12ae5dfc JH |
22 | #ifdef PERL_MICRO |
23 | # include "uconfig.h" | |
24 | #else | |
25 | # include "config.h" | |
26 | #endif | |
760ac839 | 27 | |
6f9d8c32 | 28 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 29 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 30 | /* #define PerlIO FILE */ |
760ac839 LW |
31 | #endif |
32 | /* | |
6f9d8c32 | 33 | * This file provides those parts of PerlIO abstraction |
88b61e10 | 34 | * which are not #defined in perlio.h. |
6f9d8c32 | 35 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
36 | */ |
37 | ||
38 | #include "EXTERN.h" | |
864dbfa3 | 39 | #define PERL_IN_PERLIO_C |
760ac839 LW |
40 | #include "perl.h" |
41 | ||
5f1a76d0 NIS |
42 | #undef PerlMemShared_calloc |
43 | #define PerlMemShared_calloc(x,y) calloc(x,y) | |
44 | #undef PerlMemShared_free | |
45 | #define PerlMemShared_free(x) free(x) | |
46 | ||
60382766 | 47 | int |
f5b9d040 | 48 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 NIS |
49 | { |
50 | /* This used to be contents of do_binmode in doio.c */ | |
51 | #ifdef DOSISH | |
52 | # if defined(atarist) || defined(__MINT__) | |
f5b9d040 | 53 | if (!fflush(fp)) { |
60382766 NIS |
54 | if (mode & O_BINARY) |
55 | ((FILE*)fp)->_flag |= _IOBIN; | |
56 | else | |
57 | ((FILE*)fp)->_flag &= ~ _IOBIN; | |
58 | return 1; | |
59 | } | |
60 | return 0; | |
61 | # else | |
eb73beca | 62 | dTHX; |
f5b9d040 | 63 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
60382766 NIS |
64 | # if defined(WIN32) && defined(__BORLANDC__) |
65 | /* The translation mode of the stream is maintained independent | |
66 | * of the translation mode of the fd in the Borland RTL (heavy | |
67 | * digging through their runtime sources reveal). User has to | |
68 | * set the mode explicitly for the stream (though they don't | |
69 | * document this anywhere). GSAR 97-5-24 | |
70 | */ | |
f5b9d040 | 71 | fseek(fp,0L,0); |
60382766 | 72 | if (mode & O_BINARY) |
f5b9d040 | 73 | fp->flags |= _F_BIN; |
60382766 | 74 | else |
f5b9d040 | 75 | fp->flags &= ~ _F_BIN; |
60382766 NIS |
76 | # endif |
77 | return 1; | |
78 | } | |
79 | else | |
80 | return 0; | |
81 | # endif | |
82 | #else | |
83 | # if defined(USEMYBINMODE) | |
84 | if (my_binmode(fp, iotype, mode) != FALSE) | |
85 | return 1; | |
86 | else | |
87 | return 0; | |
88 | # else | |
89 | return 1; | |
90 | # endif | |
91 | #endif | |
92 | } | |
93 | ||
eb73beca NIS |
94 | #ifndef PERLIO_LAYERS |
95 | int | |
96 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
97 | { | |
98 | if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw")) | |
99 | { | |
100 | return 0; | |
101 | } | |
102 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names); | |
103 | /* NOTREACHED */ | |
104 | return -1; | |
105 | } | |
106 | ||
13621cfb NIS |
107 | void |
108 | PerlIO_destruct(pTHX) | |
109 | { | |
110 | } | |
111 | ||
f5b9d040 NIS |
112 | int |
113 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) | |
114 | { | |
92bff44d NIS |
115 | #ifdef USE_SFIO |
116 | return 1; | |
117 | #else | |
f5b9d040 | 118 | return perlsio_binmode(fp,iotype,mode); |
92bff44d | 119 | #endif |
f5b9d040 | 120 | } |
60382766 | 121 | |
ee518936 NIS |
122 | /* De-mux PerlIO_openn() into fdopen, freopen and fopen type entries */ |
123 | ||
124 | PerlIO * | |
125 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args) | |
126 | { | |
127 | if (narg == 1) | |
128 | { | |
f6c77cf1 NIS |
129 | if (*args == &PL_sv_undef) |
130 | return PerlIO_tmpfile(); | |
ee518936 NIS |
131 | else |
132 | { | |
f6c77cf1 NIS |
133 | char *name = SvPV_nolen(*args); |
134 | if (*mode == '#') | |
135 | { | |
136 | fd = PerlLIO_open3(name,imode,perm); | |
137 | if (fd >= 0) | |
0dac06c4 | 138 | return PerlIO_fdopen(fd,(char *)mode+1); |
f6c77cf1 NIS |
139 | } |
140 | else if (old) | |
141 | { | |
142 | return PerlIO_reopen(name,mode,old); | |
143 | } | |
144 | else | |
145 | { | |
146 | return PerlIO_open(name,mode); | |
147 | } | |
ee518936 NIS |
148 | } |
149 | } | |
150 | else | |
151 | { | |
0dac06c4 | 152 | return PerlIO_fdopen(fd,(char *)mode); |
ee518936 NIS |
153 | } |
154 | return NULL; | |
155 | } | |
156 | ||
ac27b0f5 NIS |
157 | #endif |
158 | ||
32e30700 | 159 | |
6f9d8c32 | 160 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
161 | |
162 | void | |
8ac85365 | 163 | PerlIO_init(void) |
760ac839 | 164 | { |
6f9d8c32 | 165 | /* Does nothing (yet) except force this file to be included |
760ac839 | 166 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
167 | of other functions that may be required by loadable |
168 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
169 | */ |
170 | } | |
171 | ||
33dcbb9a | 172 | #undef PerlIO_tmpfile |
173 | PerlIO * | |
8ac85365 | 174 | PerlIO_tmpfile(void) |
33dcbb9a | 175 | { |
176 | return tmpfile(); | |
177 | } | |
178 | ||
760ac839 LW |
179 | #else /* PERLIO_IS_STDIO */ |
180 | ||
181 | #ifdef USE_SFIO | |
182 | ||
183 | #undef HAS_FSETPOS | |
184 | #undef HAS_FGETPOS | |
185 | ||
6f9d8c32 | 186 | /* This section is just to make sure these functions |
760ac839 LW |
187 | get pulled in from libsfio.a |
188 | */ | |
189 | ||
190 | #undef PerlIO_tmpfile | |
191 | PerlIO * | |
c78749f2 | 192 | PerlIO_tmpfile(void) |
760ac839 LW |
193 | { |
194 | return sftmp(0); | |
195 | } | |
196 | ||
197 | void | |
c78749f2 | 198 | PerlIO_init(void) |
760ac839 | 199 | { |
6f9d8c32 NIS |
200 | /* Force this file to be included in perl binary. Which allows |
201 | * this file to force inclusion of other functions that may be | |
202 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
203 | */ |
204 | ||
205 | /* Hack | |
206 | * sfio does its own 'autoflush' on stdout in common cases. | |
6f9d8c32 | 207 | * Flush results in a lot of lseek()s to regular files and |
760ac839 LW |
208 | * lot of small writes to pipes. |
209 | */ | |
210 | sfset(sfstdout,SF_SHARE,0); | |
211 | } | |
212 | ||
92bff44d NIS |
213 | PerlIO * |
214 | PerlIO_importFILE(FILE *stdio, int fl) | |
215 | { | |
216 | int fd = fileno(stdio); | |
217 | PerlIO *r = PerlIO_fdopen(fd,"r+"); | |
218 | return r; | |
219 | } | |
220 | ||
221 | FILE * | |
222 | PerlIO_findFILE(PerlIO *pio) | |
223 | { | |
224 | int fd = PerlIO_fileno(pio); | |
225 | FILE *f = fdopen(fd,"r+"); | |
226 | PerlIO_flush(pio); | |
227 | if (!f && errno == EINVAL) | |
228 | f = fdopen(fd,"w"); | |
229 | if (!f && errno == EINVAL) | |
230 | f = fdopen(fd,"r"); | |
231 | return f; | |
232 | } | |
233 | ||
234 | ||
17c3b450 | 235 | #else /* USE_SFIO */ |
6f9d8c32 | 236 | /*======================================================================================*/ |
6f9d8c32 | 237 | /* Implement all the PerlIO interface ourselves. |
9e353e3b | 238 | */ |
760ac839 | 239 | |
76ced9ad NIS |
240 | #include "perliol.h" |
241 | ||
b1ef6e3b | 242 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
243 | #ifdef I_UNISTD |
244 | #include <unistd.h> | |
245 | #endif | |
06da4f11 NIS |
246 | #ifdef HAS_MMAP |
247 | #include <sys/mman.h> | |
248 | #endif | |
249 | ||
f3862f8b | 250 | #include "XSUB.h" |
02f66e2f | 251 | |
88b61e10 | 252 | void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 | 253 | |
6f9d8c32 | 254 | void |
88b61e10 | 255 | PerlIO_debug(const char *fmt,...) |
6f9d8c32 NIS |
256 | { |
257 | static int dbg = 0; | |
88b61e10 | 258 | va_list ap; |
7bcba3d4 | 259 | dSYS; |
88b61e10 | 260 | va_start(ap,fmt); |
6f9d8c32 NIS |
261 | if (!dbg) |
262 | { | |
00b02797 | 263 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 | 264 | if (s && *s) |
00b02797 | 265 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 NIS |
266 | else |
267 | dbg = -1; | |
268 | } | |
269 | if (dbg > 0) | |
270 | { | |
271 | dTHX; | |
6f9d8c32 NIS |
272 | SV *sv = newSVpvn("",0); |
273 | char *s; | |
274 | STRLEN len; | |
05d1247b NIS |
275 | s = CopFILE(PL_curcop); |
276 | if (!s) | |
277 | s = "(none)"; | |
278 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); | |
c7fc522f NIS |
279 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
280 | ||
6f9d8c32 | 281 | s = SvPV(sv,len); |
00b02797 | 282 | PerlLIO_write(dbg,s,len); |
6f9d8c32 NIS |
283 | SvREFCNT_dec(sv); |
284 | } | |
88b61e10 | 285 | va_end(ap); |
6f9d8c32 NIS |
286 | } |
287 | ||
9e353e3b NIS |
288 | /*--------------------------------------------------------------------------------------*/ |
289 | ||
9e353e3b NIS |
290 | /* Inner level routines */ |
291 | ||
b1ef6e3b | 292 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
293 | PerlIO *_perlio = NULL; |
294 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 295 | |
e3f3bf95 NIS |
296 | |
297 | ||
760ac839 | 298 | PerlIO * |
5f1a76d0 | 299 | PerlIO_allocate(pTHX) |
6f9d8c32 | 300 | { |
f3862f8b | 301 | /* Find a free slot in the table, allocating new table as necessary */ |
5f1a76d0 | 302 | PerlIO **last; |
6f9d8c32 | 303 | PerlIO *f; |
5f1a76d0 | 304 | last = &_perlio; |
05d1247b | 305 | while ((f = *last)) |
6f9d8c32 | 306 | { |
05d1247b NIS |
307 | int i; |
308 | last = (PerlIO **)(f); | |
309 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
6f9d8c32 | 310 | { |
05d1247b | 311 | if (!*++f) |
6f9d8c32 | 312 | { |
6f9d8c32 NIS |
313 | return f; |
314 | } | |
6f9d8c32 | 315 | } |
6f9d8c32 | 316 | } |
5f1a76d0 | 317 | f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO)); |
05d1247b | 318 | if (!f) |
5f1a76d0 NIS |
319 | { |
320 | return NULL; | |
766a733e | 321 | } |
05d1247b NIS |
322 | *last = f; |
323 | return f+1; | |
324 | } | |
325 | ||
326 | void | |
5f1a76d0 | 327 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b NIS |
328 | { |
329 | PerlIO *table = *tablep; | |
330 | if (table) | |
331 | { | |
332 | int i; | |
5f1a76d0 | 333 | PerlIO_cleantable(aTHX_ (PerlIO **) &(table[0])); |
05d1247b NIS |
334 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
335 | { | |
336 | PerlIO *f = table+i; | |
60382766 | 337 | if (*f) |
3789aae2 NIS |
338 | { |
339 | PerlIO_close(f); | |
340 | } | |
05d1247b | 341 | } |
5f1a76d0 | 342 | PerlMemShared_free(table); |
05d1247b NIS |
343 | *tablep = NULL; |
344 | } | |
345 | } | |
346 | ||
fcf2db38 NIS |
347 | PerlIO_list_t *PerlIO_known_layers; |
348 | PerlIO_list_t *PerlIO_def_layerlist; | |
349 | ||
350 | PerlIO_list_t * | |
351 | PerlIO_list_alloc(void) | |
352 | { | |
353 | PerlIO_list_t *list; | |
354 | Newz('L',list,1,PerlIO_list_t); | |
355 | list->refcnt = 1; | |
356 | return list; | |
357 | } | |
358 | ||
359 | void | |
360 | PerlIO_list_free(PerlIO_list_t *list) | |
361 | { | |
362 | if (list) | |
363 | { | |
364 | if (--list->refcnt == 0) | |
365 | { | |
366 | if (list->array) | |
367 | { | |
368 | dTHX; | |
369 | IV i; | |
370 | for (i=0; i < list->cur; i++) | |
371 | { | |
372 | if (list->array[i].arg) | |
373 | SvREFCNT_dec(list->array[i].arg); | |
374 | } | |
375 | Safefree(list->array); | |
376 | } | |
377 | Safefree(list); | |
378 | } | |
379 | } | |
380 | } | |
381 | ||
382 | void | |
383 | PerlIO_list_push(PerlIO_list_t *list,PerlIO_funcs *funcs,SV *arg) | |
384 | { | |
8bdaa535 | 385 | dTHX; |
fcf2db38 NIS |
386 | PerlIO_pair_t *p; |
387 | if (list->cur >= list->len) | |
388 | { | |
389 | list->len += 8; | |
390 | if (list->array) | |
391 | Renew(list->array,list->len,PerlIO_pair_t); | |
392 | else | |
393 | New('l',list->array,list->len,PerlIO_pair_t); | |
394 | } | |
395 | p = &(list->array[list->cur++]); | |
396 | p->funcs = funcs; | |
e06a3afb NIS |
397 | if ((p->arg = arg)) { |
398 | dTHX; | |
fcf2db38 | 399 | SvREFCNT_inc(arg); |
e06a3afb | 400 | } |
fcf2db38 NIS |
401 | } |
402 | ||
4a4a6116 | 403 | |
05d1247b | 404 | void |
9a6404c5 DM |
405 | PerlIO_cleanup_layers(pTHXo_ void *data) |
406 | { | |
fcf2db38 NIS |
407 | #if 0 |
408 | PerlIO_known_layers = Nullhv; | |
409 | PerlIO_def_layerlist = Nullav; | |
410 | #endif | |
9a6404c5 DM |
411 | } |
412 | ||
413 | void | |
5f1a76d0 | 414 | PerlIO_cleanup() |
05d1247b | 415 | { |
5f1a76d0 NIS |
416 | dTHX; |
417 | PerlIO_cleantable(aTHX_ &_perlio); | |
6f9d8c32 NIS |
418 | } |
419 | ||
9e353e3b | 420 | void |
13621cfb NIS |
421 | PerlIO_destruct(pTHX) |
422 | { | |
423 | PerlIO **table = &_perlio; | |
424 | PerlIO *f; | |
425 | while ((f = *table)) | |
426 | { | |
427 | int i; | |
428 | table = (PerlIO **)(f++); | |
429 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
430 | { | |
431 | PerlIO *x = f; | |
432 | PerlIOl *l; | |
433 | while ((l = *x)) | |
434 | { | |
435 | if (l->tab->kind & PERLIO_K_DESTRUCT) | |
436 | { | |
437 | PerlIO_debug("Destruct popping %s\n",l->tab->name); | |
438 | PerlIO_flush(x); | |
439 | PerlIO_pop(aTHX_ x); | |
440 | } | |
441 | else | |
442 | { | |
443 | x = PerlIONext(x); | |
444 | } | |
445 | } | |
446 | f++; | |
447 | } | |
448 | } | |
449 | } | |
450 | ||
451 | void | |
a999f61b | 452 | PerlIO_pop(pTHX_ PerlIO *f) |
760ac839 | 453 | { |
9e353e3b NIS |
454 | PerlIOl *l = *f; |
455 | if (l) | |
6f9d8c32 | 456 | { |
86295796 | 457 | PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name); |
26fb694e NIS |
458 | if (l->tab->Popped) |
459 | (*l->tab->Popped)(f); | |
9e353e3b | 460 | *f = l->next; |
5f1a76d0 | 461 | PerlMemShared_free(l); |
6f9d8c32 | 462 | } |
6f9d8c32 NIS |
463 | } |
464 | ||
9e353e3b | 465 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 | 466 | /* XS Interface for perl code */ |
9e353e3b | 467 | |
fcf2db38 | 468 | PerlIO_funcs * |
2edd7e44 | 469 | PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load) |
f3862f8b | 470 | { |
fcf2db38 | 471 | IV i; |
766a733e | 472 | if ((SSize_t) len <= 0) |
f3862f8b | 473 | len = strlen(name); |
fcf2db38 NIS |
474 | for (i=0; i < PerlIO_known_layers->cur; i++) |
475 | { | |
476 | PerlIO_funcs *f = PerlIO_known_layers->array[i].funcs; | |
477 | if (strEQ(f->name,name)) | |
478 | { | |
479 | PerlIO_debug("%.*s => %p\n",(int)len,name,f); | |
480 | return f; | |
481 | } | |
482 | } | |
483 | if (load && PL_subname && PerlIO_def_layerlist && PerlIO_def_layerlist->cur >= 2) | |
1141d9f8 NIS |
484 | { |
485 | SV *pkgsv = newSVpvn("PerlIO",6); | |
486 | SV *layer = newSVpvn(name,len); | |
487 | ENTER; | |
488 | /* The two SVs are magically freed by load_module */ | |
489 | Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv); | |
490 | LEAVE; | |
fcf2db38 | 491 | return PerlIO_find_layer(aTHX_ name,len,0); |
1141d9f8 | 492 | } |
fcf2db38 NIS |
493 | PerlIO_debug("Cannot find %.*s\n",(int)len,name); |
494 | return NULL; | |
f3862f8b NIS |
495 | } |
496 | ||
2a1bc955 | 497 | #ifdef USE_ATTRIBUTES_FOR_PERLIO |
b13b2135 NIS |
498 | |
499 | static int | |
500 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
501 | { | |
502 | if (SvROK(sv)) | |
503 | { | |
b931b1d9 | 504 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
505 | PerlIO *ifp = IoIFP(io); |
506 | PerlIO *ofp = IoOFP(io); | |
4659c93f | 507 | Perl_warn(aTHX_ "set %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
508 | } |
509 | return 0; | |
510 | } | |
511 | ||
512 | static int | |
513 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
514 | { | |
515 | if (SvROK(sv)) | |
516 | { | |
b931b1d9 | 517 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
518 | PerlIO *ifp = IoIFP(io); |
519 | PerlIO *ofp = IoOFP(io); | |
4659c93f | 520 | Perl_warn(aTHX_ "get %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
521 | } |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int | |
526 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
527 | { | |
4659c93f | 528 | Perl_warn(aTHX_ "clear %"SVf,sv); |
b13b2135 NIS |
529 | return 0; |
530 | } | |
531 | ||
532 | static int | |
533 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
534 | { | |
4659c93f | 535 | Perl_warn(aTHX_ "free %"SVf,sv); |
b13b2135 NIS |
536 | return 0; |
537 | } | |
538 | ||
539 | MGVTBL perlio_vtab = { | |
540 | perlio_mg_get, | |
541 | perlio_mg_set, | |
542 | NULL, /* len */ | |
2a1bc955 | 543 | perlio_mg_clear, |
b13b2135 NIS |
544 | perlio_mg_free |
545 | }; | |
546 | ||
547 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
548 | { | |
549 | dXSARGS; | |
550 | SV *sv = SvRV(ST(1)); | |
551 | AV *av = newAV(); | |
552 | MAGIC *mg; | |
553 | int count = 0; | |
554 | int i; | |
14befaf4 | 555 | sv_magic(sv, (SV *)av, PERL_MAGIC_ext, NULL, 0); |
b13b2135 | 556 | SvRMAGICAL_off(sv); |
14befaf4 | 557 | mg = mg_find(sv, PERL_MAGIC_ext); |
b13b2135 NIS |
558 | mg->mg_virtual = &perlio_vtab; |
559 | mg_magical(sv); | |
4659c93f | 560 | Perl_warn(aTHX_ "attrib %"SVf,sv); |
b13b2135 NIS |
561 | for (i=2; i < items; i++) |
562 | { | |
563 | STRLEN len; | |
ac27b0f5 | 564 | const char *name = SvPV(ST(i),len); |
2edd7e44 | 565 | SV *layer = PerlIO_find_layer(aTHX_ name,len,1); |
b13b2135 NIS |
566 | if (layer) |
567 | { | |
568 | av_push(av,SvREFCNT_inc(layer)); | |
569 | } | |
570 | else | |
571 | { | |
572 | ST(count) = ST(i); | |
573 | count++; | |
574 | } | |
575 | } | |
576 | SvREFCNT_dec(av); | |
577 | XSRETURN(count); | |
578 | } | |
579 | ||
2a1bc955 NIS |
580 | #endif /* USE_ATTIBUTES_FOR_PERLIO */ |
581 | ||
e3f3bf95 NIS |
582 | SV * |
583 | PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab) | |
f3862f8b | 584 | { |
7d3b96bb | 585 | HV *stash = gv_stashpv("PerlIO::Layer", TRUE); |
e7778b43 | 586 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
e3f3bf95 NIS |
587 | return sv; |
588 | } | |
589 | ||
590 | void | |
591 | PerlIO_define_layer(pTHX_ PerlIO_funcs *tab) | |
592 | { | |
fcf2db38 NIS |
593 | if (!PerlIO_known_layers) |
594 | PerlIO_known_layers = PerlIO_list_alloc(); | |
595 | PerlIO_list_push(PerlIO_known_layers,tab,Nullsv); | |
dfebf958 | 596 | PerlIO_debug("define %s %p\n",tab->name,tab); |
f3862f8b NIS |
597 | } |
598 | ||
1141d9f8 | 599 | int |
fcf2db38 | 600 | PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names) |
1141d9f8 NIS |
601 | { |
602 | if (names) | |
603 | { | |
604 | const char *s = names; | |
605 | while (*s) | |
606 | { | |
607 | while (isSPACE(*s) || *s == ':') | |
608 | s++; | |
609 | if (*s) | |
610 | { | |
611 | STRLEN llen = 0; | |
612 | const char *e = s; | |
613 | const char *as = Nullch; | |
614 | STRLEN alen = 0; | |
615 | if (!isIDFIRST(*s)) | |
616 | { | |
617 | /* Message is consistent with how attribute lists are passed. | |
618 | Even though this means "foo : : bar" is seen as an invalid separator | |
619 | character. */ | |
620 | char q = ((*s == '\'') ? '"' : '\''); | |
621 | Perl_warn(aTHX_ "perlio: invalid separator character %c%c%c in layer specification list", q, *s, q); | |
622 | return -1; | |
623 | } | |
624 | do | |
625 | { | |
626 | e++; | |
627 | } while (isALNUM(*e)); | |
628 | llen = e-s; | |
629 | if (*e == '(') | |
630 | { | |
631 | int nesting = 1; | |
632 | as = ++e; | |
633 | while (nesting) | |
634 | { | |
635 | switch (*e++) | |
636 | { | |
637 | case ')': | |
638 | if (--nesting == 0) | |
639 | alen = (e-1)-as; | |
640 | break; | |
641 | case '(': | |
642 | ++nesting; | |
643 | break; | |
644 | case '\\': | |
645 | /* It's a nul terminated string, not allowed to \ the terminating null. | |
646 | Anything other character is passed over. */ | |
647 | if (*e++) | |
648 | { | |
649 | break; | |
650 | } | |
651 | /* Drop through */ | |
652 | case '\0': | |
653 | e--; | |
654 | Perl_warn(aTHX_ "perlio: argument list not closed for layer \"%.*s\"",(int)(e - s),s); | |
655 | return -1; | |
656 | default: | |
657 | /* boring. */ | |
658 | break; | |
659 | } | |
660 | } | |
661 | } | |
662 | if (e > s) | |
663 | { | |
fcf2db38 | 664 | PerlIO_funcs *layer = PerlIO_find_layer(aTHX_ s,llen,1); |
1141d9f8 NIS |
665 | if (layer) |
666 | { | |
fcf2db38 | 667 | PerlIO_list_push(av, layer, (as) ? newSVpvn(as,alen) : &PL_sv_undef); |
1141d9f8 NIS |
668 | } |
669 | else { | |
670 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)llen,s); | |
671 | return -1; | |
672 | } | |
673 | } | |
674 | s = e; | |
675 | } | |
676 | } | |
677 | } | |
678 | return 0; | |
679 | } | |
680 | ||
dfebf958 | 681 | void |
fcf2db38 | 682 | PerlIO_default_buffer(pTHX_ PerlIO_list_t *av) |
dfebf958 NIS |
683 | { |
684 | PerlIO_funcs *tab = &PerlIO_perlio; | |
685 | if (O_BINARY != O_TEXT) | |
686 | { | |
687 | tab = &PerlIO_crlf; | |
688 | } | |
689 | else | |
690 | { | |
691 | if (PerlIO_stdio.Set_ptrcnt) | |
692 | { | |
693 | tab = &PerlIO_stdio; | |
694 | } | |
695 | } | |
696 | PerlIO_debug("Pushing %s\n",tab->name); | |
fcf2db38 | 697 | PerlIO_list_push(av,PerlIO_find_layer(aTHX_ tab->name,0,0),&PL_sv_undef); |
dfebf958 NIS |
698 | } |
699 | ||
e3f3bf95 | 700 | SV * |
fcf2db38 | 701 | PerlIO_arg_fetch(PerlIO_list_t *av,IV n) |
e3f3bf95 | 702 | { |
fcf2db38 | 703 | return av->array[n].arg; |
e3f3bf95 NIS |
704 | } |
705 | ||
f3862f8b | 706 | PerlIO_funcs * |
fcf2db38 | 707 | PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av,IV n,PerlIO_funcs *def) |
f3862f8b | 708 | { |
fcf2db38 | 709 | if (n >= 0 && n < av->cur) |
e3f3bf95 | 710 | { |
fcf2db38 NIS |
711 | PerlIO_debug("Layer %ld is %s\n",n,av->array[n].funcs->name); |
712 | return av->array[n].funcs; | |
e3f3bf95 NIS |
713 | } |
714 | if (!def) | |
7c213558 | 715 | Perl_croak(aTHX_ "panic: PerlIO layer array corrupt"); |
e3f3bf95 NIS |
716 | return def; |
717 | } | |
718 | ||
fcf2db38 | 719 | PerlIO_list_t * |
e3f3bf95 NIS |
720 | PerlIO_default_layers(pTHX) |
721 | { | |
fcf2db38 | 722 | if (!PerlIO_def_layerlist) |
f3862f8b | 723 | { |
1141d9f8 | 724 | const char *s = (PL_tainting) ? Nullch : PerlEnv_getenv("PERLIO"); |
fcf2db38 | 725 | PerlIO_def_layerlist = PerlIO_list_alloc(); |
2a1bc955 NIS |
726 | |
727 | #ifdef USE_ATTRIBUTES_FOR_PERLIO | |
b13b2135 | 728 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 | 729 | #endif |
2a1bc955 | 730 | |
a999f61b NIS |
731 | PerlIO_define_layer(aTHX_ &PerlIO_raw); |
732 | PerlIO_define_layer(aTHX_ &PerlIO_unix); | |
733 | PerlIO_define_layer(aTHX_ &PerlIO_perlio); | |
734 | PerlIO_define_layer(aTHX_ &PerlIO_stdio); | |
735 | PerlIO_define_layer(aTHX_ &PerlIO_crlf); | |
06da4f11 | 736 | #ifdef HAS_MMAP |
a999f61b | 737 | PerlIO_define_layer(aTHX_ &PerlIO_mmap); |
06da4f11 | 738 | #endif |
a999f61b NIS |
739 | PerlIO_define_layer(aTHX_ &PerlIO_utf8); |
740 | PerlIO_define_layer(aTHX_ &PerlIO_byte); | |
fcf2db38 | 741 | PerlIO_list_push(PerlIO_def_layerlist,PerlIO_find_layer(aTHX_ PerlIO_unix.name,0,0),&PL_sv_undef); |
f3862f8b NIS |
742 | if (s) |
743 | { | |
fcf2db38 | 744 | PerlIO_parse_layers(aTHX_ PerlIO_def_layerlist,s); |
1141d9f8 NIS |
745 | } |
746 | else | |
747 | { | |
fcf2db38 | 748 | PerlIO_default_buffer(aTHX_ PerlIO_def_layerlist); |
f3862f8b NIS |
749 | } |
750 | } | |
fcf2db38 | 751 | if (PerlIO_def_layerlist->cur < 2) |
f3862f8b | 752 | { |
fcf2db38 | 753 | PerlIO_default_buffer(aTHX_ PerlIO_def_layerlist); |
f3862f8b | 754 | } |
fcf2db38 | 755 | return PerlIO_def_layerlist; |
e3f3bf95 NIS |
756 | } |
757 | ||
758 | ||
759 | PerlIO_funcs * | |
760 | PerlIO_default_layer(pTHX_ I32 n) | |
761 | { | |
fcf2db38 | 762 | PerlIO_list_t *av = PerlIO_default_layers(aTHX); |
f3862f8b | 763 | if (n < 0) |
fcf2db38 | 764 | n += av->cur; |
e3f3bf95 | 765 | return PerlIO_layer_fetch(aTHX_ av,n, &PerlIO_stdio); |
f3862f8b NIS |
766 | } |
767 | ||
a999f61b NIS |
768 | #define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1) |
769 | #define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0) | |
60382766 NIS |
770 | |
771 | void | |
1141d9f8 | 772 | PerlIO_stdstreams(pTHX) |
60382766 NIS |
773 | { |
774 | if (!_perlio) | |
775 | { | |
5f1a76d0 | 776 | PerlIO_allocate(aTHX); |
f5b9d040 NIS |
777 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
778 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); | |
779 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); | |
60382766 NIS |
780 | } |
781 | } | |
782 | ||
783 | PerlIO * | |
e3f3bf95 | 784 | PerlIO_push(pTHX_ PerlIO *f,PerlIO_funcs *tab,const char *mode,SV *arg) |
60382766 NIS |
785 | { |
786 | PerlIOl *l = NULL; | |
5f1a76d0 | 787 | l = PerlMemShared_calloc(tab->size,sizeof(char)); |
60382766 NIS |
788 | if (l) |
789 | { | |
790 | Zero(l,tab->size,char); | |
791 | l->next = *f; | |
792 | l->tab = tab; | |
793 | *f = l; | |
8c0134a8 NIS |
794 | PerlIO_debug("PerlIO_push f=%p %s %s %p\n",f,tab->name, |
795 | (mode) ? mode : "(Null)",arg); | |
e3f3bf95 | 796 | if ((*l->tab->Pushed)(f,mode,arg) != 0) |
60382766 | 797 | { |
a999f61b | 798 | PerlIO_pop(aTHX_ f); |
60382766 NIS |
799 | return NULL; |
800 | } | |
801 | } | |
802 | return f; | |
803 | } | |
804 | ||
dfebf958 | 805 | IV |
e3f3bf95 | 806 | PerlIOPop_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 807 | { |
a999f61b NIS |
808 | dTHX; |
809 | PerlIO_pop(aTHX_ f); | |
4b803d04 NIS |
810 | if (*f) |
811 | { | |
812 | PerlIO_flush(f); | |
a999f61b | 813 | PerlIO_pop(aTHX_ f); |
4b803d04 NIS |
814 | return 0; |
815 | } | |
816 | return -1; | |
817 | } | |
818 | ||
819 | IV | |
e3f3bf95 | 820 | PerlIORaw_pushed(PerlIO *f, const char *mode, SV *arg) |
dfebf958 | 821 | { |
4b803d04 | 822 | /* Remove the dummy layer */ |
a999f61b NIS |
823 | dTHX; |
824 | PerlIO_pop(aTHX_ f); | |
dfebf958 | 825 | /* Pop back to bottom layer */ |
4b803d04 | 826 | if (f && *f) |
dfebf958 | 827 | { |
4b803d04 NIS |
828 | PerlIO_flush(f); |
829 | while (!(PerlIOBase(f)->tab->kind & PERLIO_K_RAW)) | |
dfebf958 | 830 | { |
4b803d04 NIS |
831 | if (*PerlIONext(f)) |
832 | { | |
a999f61b | 833 | PerlIO_pop(aTHX_ f); |
4b803d04 NIS |
834 | } |
835 | else | |
836 | { | |
837 | /* Nothing bellow - push unix on top then remove it */ | |
e3f3bf95 | 838 | if (PerlIO_push(aTHX_ f,PerlIO_default_btm(),mode,arg)) |
4b803d04 | 839 | { |
a999f61b | 840 | PerlIO_pop(aTHX_ PerlIONext(f)); |
4b803d04 NIS |
841 | } |
842 | break; | |
843 | } | |
dfebf958 | 844 | } |
26fb694e | 845 | PerlIO_debug(":raw f=%p :%s\n",f,PerlIOBase(f)->tab->name); |
dfebf958 NIS |
846 | return 0; |
847 | } | |
848 | return -1; | |
849 | } | |
850 | ||
ac27b0f5 | 851 | int |
fcf2db38 | 852 | PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode, PerlIO_list_t *layers, IV n) |
e3f3bf95 | 853 | { |
fcf2db38 | 854 | IV max = layers->cur; |
e3f3bf95 NIS |
855 | int code = 0; |
856 | while (n < max) | |
857 | { | |
858 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers,n,NULL); | |
859 | if (tab) | |
860 | { | |
f6c77cf1 | 861 | if (!PerlIO_push(aTHX_ f,tab,mode,PerlIOArg)) |
e3f3bf95 | 862 | { |
8c0134a8 | 863 | code = -1; |
e3f3bf95 NIS |
864 | break; |
865 | } | |
866 | } | |
fcf2db38 | 867 | n++; |
e3f3bf95 NIS |
868 | } |
869 | return code; | |
870 | } | |
871 | ||
872 | int | |
ac27b0f5 NIS |
873 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
874 | { | |
1141d9f8 | 875 | int code = 0; |
ac27b0f5 NIS |
876 | if (names) |
877 | { | |
fcf2db38 | 878 | PerlIO_list_t *layers = PerlIO_list_alloc(); |
1141d9f8 NIS |
879 | code = PerlIO_parse_layers(aTHX_ layers,names); |
880 | if (code == 0) | |
ac27b0f5 | 881 | { |
e3f3bf95 | 882 | code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0); |
ac27b0f5 | 883 | } |
fcf2db38 | 884 | PerlIO_list_free(layers); |
ac27b0f5 | 885 | } |
1141d9f8 | 886 | return code; |
ac27b0f5 NIS |
887 | } |
888 | ||
f3862f8b | 889 | |
60382766 NIS |
890 | /*--------------------------------------------------------------------------------------*/ |
891 | /* Given the abstraction above the public API functions */ | |
892 | ||
893 | int | |
f5b9d040 | 894 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 895 | { |
86295796 | 896 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
a4d3c1d3 | 897 | f,PerlIOBase(f)->tab->name,iotype,mode, (names) ? names : "(Null)"); |
33af2bc7 | 898 | if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) |
76ced9ad | 899 | { |
f5b9d040 | 900 | PerlIO *top = f; |
60382766 | 901 | PerlIOl *l; |
b7953727 | 902 | while ((l = *top)) |
76ced9ad | 903 | { |
60382766 NIS |
904 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
905 | { | |
906 | PerlIO_flush(top); | |
a4d3c1d3 | 907 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 NIS |
908 | break; |
909 | } | |
910 | top = PerlIONext(top); | |
76ced9ad NIS |
911 | } |
912 | } | |
f5b9d040 NIS |
913 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; |
914 | } | |
915 | ||
916 | #undef PerlIO__close | |
917 | int | |
918 | PerlIO__close(PerlIO *f) | |
919 | { | |
882162d7 JH |
920 | if (f && *f) |
921 | return (*PerlIOBase(f)->tab->Close)(f); | |
922 | else | |
923 | { | |
924 | SETERRNO(EBADF,SS$_IVCHAN); | |
925 | return -1; | |
926 | } | |
76ced9ad NIS |
927 | } |
928 | ||
5f1a76d0 NIS |
929 | #undef PerlIO_fdupopen |
930 | PerlIO * | |
931 | PerlIO_fdupopen(pTHX_ PerlIO *f) | |
932 | { | |
882162d7 JH |
933 | if (f && *f) |
934 | { | |
935 | char buf[8]; | |
936 | int fd = PerlLIO_dup(PerlIO_fileno(f)); | |
937 | PerlIO *new = PerlIO_fdopen(fd,PerlIO_modestr(f,buf)); | |
938 | if (new) | |
939 | { | |
940 | Off_t posn = PerlIO_tell(f); | |
941 | PerlIO_seek(new,posn,SEEK_SET); | |
942 | } | |
943 | return new; | |
944 | } | |
945 | else | |
5f1a76d0 | 946 | { |
882162d7 | 947 | SETERRNO(EBADF,SS$_IVCHAN); |
440108a8 | 948 | return NULL; |
5f1a76d0 | 949 | } |
5f1a76d0 | 950 | } |
f5b9d040 | 951 | |
b931b1d9 NIS |
952 | #undef PerlIO_close |
953 | int | |
954 | PerlIO_close(PerlIO *f) | |
955 | { | |
a999f61b | 956 | dTHX; |
f6c77cf1 NIS |
957 | int code = -1; |
958 | if (f && *f) | |
b931b1d9 | 959 | { |
f6c77cf1 NIS |
960 | code = (*PerlIOBase(f)->tab->Close)(f); |
961 | while (*f) | |
962 | { | |
963 | PerlIO_pop(aTHX_ f); | |
964 | } | |
b931b1d9 NIS |
965 | } |
966 | return code; | |
967 | } | |
968 | ||
969 | #undef PerlIO_fileno | |
970 | int | |
971 | PerlIO_fileno(PerlIO *f) | |
972 | { | |
882162d7 JH |
973 | if (f && *f) |
974 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
975 | else | |
976 | { | |
977 | SETERRNO(EBADF,SS$_IVCHAN); | |
978 | return -1; | |
979 | } | |
b931b1d9 NIS |
980 | } |
981 | ||
1141d9f8 NIS |
982 | static const char * |
983 | PerlIO_context_layers(pTHX_ const char *mode) | |
984 | { | |
985 | const char *type = NULL; | |
986 | /* Need to supply default layer info from open.pm */ | |
987 | if (PL_curcop) | |
988 | { | |
989 | SV *layers = PL_curcop->cop_io; | |
990 | if (layers) | |
991 | { | |
992 | STRLEN len; | |
993 | type = SvPV(layers,len); | |
994 | if (type && mode[0] != 'r') | |
995 | { | |
996 | /* Skip to write part */ | |
997 | const char *s = strchr(type,0); | |
998 | if (s && (s-type) < len) | |
999 | { | |
1000 | type = s+1; | |
1001 | } | |
1002 | } | |
1003 | } | |
1004 | } | |
1005 | return type; | |
1006 | } | |
1007 | ||
fcf2db38 | 1008 | static PerlIO_funcs * |
2edd7e44 NIS |
1009 | PerlIO_layer_from_ref(pTHX_ SV *sv) |
1010 | { | |
1011 | /* For any scalar type load the handler which is bundled with perl */ | |
1012 | if (SvTYPE(sv) < SVt_PVAV) | |
1013 | return PerlIO_find_layer(aTHX_ "Scalar",6, 1); | |
1014 | ||
1015 | /* For other types allow if layer is known but don't try and load it */ | |
1016 | switch (SvTYPE(sv)) | |
1017 | { | |
1018 | case SVt_PVAV: | |
1019 | return PerlIO_find_layer(aTHX_ "Array",5, 0); | |
1020 | case SVt_PVHV: | |
1021 | return PerlIO_find_layer(aTHX_ "Hash",4, 0); | |
1022 | case SVt_PVCV: | |
1023 | return PerlIO_find_layer(aTHX_ "Code",4, 0); | |
1024 | case SVt_PVGV: | |
1025 | return PerlIO_find_layer(aTHX_ "Glob",4, 0); | |
1026 | } | |
fcf2db38 | 1027 | return NULL; |
2edd7e44 NIS |
1028 | } |
1029 | ||
fcf2db38 | 1030 | PerlIO_list_t * |
e3f3bf95 | 1031 | PerlIO_resolve_layers(pTHX_ const char *layers,const char *mode,int narg, SV **args) |
ee518936 | 1032 | { |
fcf2db38 | 1033 | PerlIO_list_t *def = PerlIO_default_layers(aTHX); |
f6c77cf1 | 1034 | int incdef = 1; |
e3f3bf95 NIS |
1035 | if (!_perlio) |
1036 | PerlIO_stdstreams(aTHX); | |
f6c77cf1 NIS |
1037 | if (narg) |
1038 | { | |
2edd7e44 NIS |
1039 | SV *arg = *args; |
1040 | /* If it is a reference but not an object see if we have a handler for it */ | |
1041 | if (SvROK(arg) && !sv_isobject(arg)) | |
f6c77cf1 | 1042 | { |
fcf2db38 | 1043 | PerlIO_funcs *handler = PerlIO_layer_from_ref(aTHX_ SvRV(arg)); |
2edd7e44 | 1044 | if (handler) |
f6c77cf1 | 1045 | { |
fcf2db38 NIS |
1046 | def = PerlIO_list_alloc(); |
1047 | PerlIO_list_push(def,handler,&PL_sv_undef); | |
2edd7e44 | 1048 | incdef = 0; |
f6c77cf1 | 1049 | } |
2edd7e44 NIS |
1050 | /* Don't fail if handler cannot be found |
1051 | * :Via(...) etc. may do something sensible | |
1052 | * else we will just stringfy and open resulting string. | |
1053 | */ | |
f6c77cf1 NIS |
1054 | } |
1055 | } | |
1141d9f8 NIS |
1056 | if (!layers) |
1057 | layers = PerlIO_context_layers(aTHX_ mode); | |
e3f3bf95 NIS |
1058 | if (layers && *layers) |
1059 | { | |
fcf2db38 | 1060 | PerlIO_list_t *av; |
f6c77cf1 | 1061 | if (incdef) |
e3f3bf95 | 1062 | { |
fcf2db38 NIS |
1063 | IV i = def->cur; |
1064 | av = PerlIO_list_alloc(); | |
1065 | for (i=0; i < def->cur; i++) | |
f6c77cf1 | 1066 | { |
fcf2db38 | 1067 | PerlIO_list_push(av,def->array[i].funcs,def->array[i].arg); |
f6c77cf1 NIS |
1068 | } |
1069 | } | |
1070 | else | |
1071 | { | |
1072 | av = def; | |
e3f3bf95 NIS |
1073 | } |
1074 | PerlIO_parse_layers(aTHX_ av,layers); | |
1075 | return av; | |
1076 | } | |
1077 | else | |
1078 | { | |
f6c77cf1 | 1079 | if (incdef) |
fcf2db38 | 1080 | def->refcnt++; |
e3f3bf95 NIS |
1081 | return def; |
1082 | } | |
ee518936 NIS |
1083 | } |
1084 | ||
1085 | PerlIO * | |
1086 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) | |
1087 | { | |
f6c77cf1 | 1088 | if (!f && narg == 1 && *args == &PL_sv_undef) |
5e334b7b | 1089 | { |
f6c77cf1 | 1090 | if ((f = PerlIO_tmpfile())) |
e3f3bf95 | 1091 | { |
f6c77cf1 NIS |
1092 | if (!layers) |
1093 | layers = PerlIO_context_layers(aTHX_ mode); | |
1094 | if (layers && *layers) | |
1095 | PerlIO_apply_layers(aTHX_ f,mode,layers); | |
e3f3bf95 | 1096 | } |
5e334b7b | 1097 | } |
e3f3bf95 NIS |
1098 | else |
1099 | { | |
fcf2db38 | 1100 | PerlIO_list_t *layera = NULL; |
f6c77cf1 | 1101 | IV n; |
b7953727 | 1102 | PerlIO_funcs *tab = NULL; |
f6c77cf1 | 1103 | if (f && *f) |
e3f3bf95 | 1104 | { |
f6c77cf1 NIS |
1105 | /* This is "reopen" - it is not tested as perl does not use it yet */ |
1106 | PerlIOl *l = *f; | |
fcf2db38 | 1107 | layera = PerlIO_list_alloc(); |
f6c77cf1 NIS |
1108 | while (l) |
1109 | { | |
1110 | SV *arg = (l->tab->Getarg) ? (*l->tab->Getarg)(&l) : &PL_sv_undef; | |
fcf2db38 | 1111 | PerlIO_list_push(layera,l->tab,arg); |
f6c77cf1 NIS |
1112 | l = *PerlIONext(&l); |
1113 | } | |
e3f3bf95 | 1114 | } |
f6c77cf1 NIS |
1115 | else |
1116 | { | |
1117 | layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args); | |
1118 | } | |
fcf2db38 NIS |
1119 | /* Start at "top" of layer stack */ |
1120 | n = layera->cur-1; | |
f6c77cf1 NIS |
1121 | while (n >= 0) |
1122 | { | |
1123 | PerlIO_funcs *t = PerlIO_layer_fetch(aTHX_ layera,n,NULL); | |
1124 | if (t && t->Open) | |
1125 | { | |
1126 | tab = t; | |
1127 | break; | |
1128 | } | |
fcf2db38 | 1129 | n--; |
f6c77cf1 NIS |
1130 | } |
1131 | if (tab) | |
e3f3bf95 | 1132 | { |
fcf2db38 | 1133 | /* Found that layer 'n' can do opens - call it */ |
f6c77cf1 NIS |
1134 | PerlIO_debug("openn(%s,'%s','%s',%d,%x,%o,%p,%d,%p)\n", |
1135 | tab->name,layers,mode,fd,imode,perm,f,narg,args); | |
1136 | f = (*tab->Open)(aTHX_ tab, layera, n, mode,fd,imode,perm,f,narg,args); | |
1137 | if (f) | |
e3f3bf95 | 1138 | { |
fcf2db38 | 1139 | if (n+1 < layera->cur) |
e3f3bf95 | 1140 | { |
fcf2db38 NIS |
1141 | /* More layers above the one that we used to open - apply them now */ |
1142 | if (PerlIO_apply_layera(aTHX_ f, mode, layera, n+1) != 0) | |
f6c77cf1 NIS |
1143 | { |
1144 | f = NULL; | |
1145 | } | |
e3f3bf95 NIS |
1146 | } |
1147 | } | |
1148 | } | |
fcf2db38 | 1149 | PerlIO_list_free(layera); |
e3f3bf95 | 1150 | } |
5e334b7b | 1151 | return f; |
ee518936 | 1152 | } |
b931b1d9 NIS |
1153 | |
1154 | ||
9e353e3b NIS |
1155 | #undef PerlIO_fdopen |
1156 | PerlIO * | |
1157 | PerlIO_fdopen(int fd, const char *mode) | |
1158 | { | |
ee518936 NIS |
1159 | dTHX; |
1160 | return PerlIO_openn(aTHX_ Nullch,mode,fd,0,0,NULL,0,NULL); | |
9e353e3b NIS |
1161 | } |
1162 | ||
6f9d8c32 NIS |
1163 | #undef PerlIO_open |
1164 | PerlIO * | |
1165 | PerlIO_open(const char *path, const char *mode) | |
1166 | { | |
ee518936 NIS |
1167 | dTHX; |
1168 | SV *name = sv_2mortal(newSVpvn(path,strlen(path))); | |
1169 | return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,NULL,1,&name); | |
6f9d8c32 NIS |
1170 | } |
1171 | ||
9e353e3b NIS |
1172 | #undef PerlIO_reopen |
1173 | PerlIO * | |
1174 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 1175 | { |
ee518936 NIS |
1176 | dTHX; |
1177 | SV *name = sv_2mortal(newSVpvn(path,strlen(path))); | |
1178 | return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,f,1,&name); | |
760ac839 LW |
1179 | } |
1180 | ||
9e353e3b NIS |
1181 | #undef PerlIO_read |
1182 | SSize_t | |
1183 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 1184 | { |
ba412a5d | 1185 | if (f && *f) |
882162d7 | 1186 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
ba412a5d JH |
1187 | else |
1188 | { | |
1189 | SETERRNO(EBADF,SS$_IVCHAN); | |
1190 | return -1; | |
1191 | } | |
760ac839 LW |
1192 | } |
1193 | ||
313ca112 NIS |
1194 | #undef PerlIO_unread |
1195 | SSize_t | |
1196 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1197 | { |
ba412a5d JH |
1198 | if (f && *f) |
1199 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); | |
1200 | else | |
1201 | { | |
1202 | SETERRNO(EBADF,SS$_IVCHAN); | |
1203 | return -1; | |
1204 | } | |
760ac839 LW |
1205 | } |
1206 | ||
9e353e3b NIS |
1207 | #undef PerlIO_write |
1208 | SSize_t | |
1209 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1210 | { |
ba412a5d | 1211 | if (f && *f) |
882162d7 | 1212 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
ba412a5d JH |
1213 | else |
1214 | { | |
1215 | SETERRNO(EBADF,SS$_IVCHAN); | |
1216 | return -1; | |
1217 | } | |
760ac839 LW |
1218 | } |
1219 | ||
9e353e3b | 1220 | #undef PerlIO_seek |
6f9d8c32 | 1221 | int |
9e353e3b | 1222 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 1223 | { |
ba412a5d JH |
1224 | if (f && *f) |
1225 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); | |
1226 | else | |
1227 | { | |
1228 | SETERRNO(EBADF,SS$_IVCHAN); | |
1229 | return -1; | |
1230 | } | |
760ac839 LW |
1231 | } |
1232 | ||
9e353e3b NIS |
1233 | #undef PerlIO_tell |
1234 | Off_t | |
1235 | PerlIO_tell(PerlIO *f) | |
760ac839 | 1236 | { |
ba412a5d JH |
1237 | if (f && *f) |
1238 | return (*PerlIOBase(f)->tab->Tell)(f); | |
1239 | else | |
1240 | { | |
1241 | SETERRNO(EBADF,SS$_IVCHAN); | |
1242 | return -1; | |
1243 | } | |
760ac839 LW |
1244 | } |
1245 | ||
9e353e3b | 1246 | #undef PerlIO_flush |
6f9d8c32 | 1247 | int |
9e353e3b | 1248 | PerlIO_flush(PerlIO *f) |
760ac839 | 1249 | { |
6f9d8c32 NIS |
1250 | if (f) |
1251 | { | |
ba412a5d | 1252 | if (*f) |
26fb694e | 1253 | { |
ba412a5d JH |
1254 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1255 | if (tab && tab->Flush) | |
1256 | { | |
1257 | return (*tab->Flush)(f); | |
1258 | } | |
1259 | else | |
1260 | { | |
1261 | PerlIO_debug("Cannot flush f=%p :%s\n",f,tab->name); | |
1262 | SETERRNO(EBADF,SS$_IVCHAN); | |
1263 | return -1; | |
1264 | } | |
26fb694e NIS |
1265 | } |
1266 | else | |
1267 | { | |
ba412a5d JH |
1268 | PerlIO_debug("Cannot flush f=%p\n",f); |
1269 | SETERRNO(EBADF,SS$_IVCHAN); | |
26fb694e NIS |
1270 | return -1; |
1271 | } | |
6f9d8c32 | 1272 | } |
2a1bc955 NIS |
1273 | else |
1274 | { | |
ba412a5d JH |
1275 | /* Is it good API design to do flush-all on NULL, |
1276 | * a potentially errorneous input? Maybe some magical | |
1277 | * value (PerlIO* PERLIO_FLUSH_ALL = (PerlIO*)-1;)? | |
1278 | * Yes, stdio does similar things on fflush(NULL), | |
1279 | * but should we be bound by their design decisions? | |
1280 | * --jhi */ | |
05d1247b | 1281 | PerlIO **table = &_perlio; |
9e353e3b | 1282 | int code = 0; |
05d1247b | 1283 | while ((f = *table)) |
6f9d8c32 | 1284 | { |
05d1247b NIS |
1285 | int i; |
1286 | table = (PerlIO **)(f++); | |
1287 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
1288 | { |
1289 | if (*f && PerlIO_flush(f) != 0) | |
1290 | code = -1; | |
05d1247b | 1291 | f++; |
9e353e3b | 1292 | } |
6f9d8c32 | 1293 | } |
9e353e3b | 1294 | return code; |
6f9d8c32 | 1295 | } |
760ac839 LW |
1296 | } |
1297 | ||
a9c883f6 NIS |
1298 | void |
1299 | PerlIOBase_flush_linebuf() | |
1300 | { | |
1301 | PerlIO **table = &_perlio; | |
1302 | PerlIO *f; | |
1303 | while ((f = *table)) | |
1304 | { | |
1305 | int i; | |
1306 | table = (PerlIO **)(f++); | |
1307 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
1308 | { | |
1309 | if (*f && (PerlIOBase(f)->flags & (PERLIO_F_LINEBUF|PERLIO_F_CANWRITE)) | |
1310 | == (PERLIO_F_LINEBUF|PERLIO_F_CANWRITE)) | |
1311 | PerlIO_flush(f); | |
1312 | f++; | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | ||
06da4f11 NIS |
1317 | #undef PerlIO_fill |
1318 | int | |
1319 | PerlIO_fill(PerlIO *f) | |
1320 | { | |
ba412a5d JH |
1321 | if (f && *f) |
1322 | return (*PerlIOBase(f)->tab->Fill)(f); | |
1323 | else | |
1324 | { | |
1325 | SETERRNO(EBADF,SS$_IVCHAN); | |
1326 | return -1; | |
2a1bc955 | 1327 | } |
06da4f11 NIS |
1328 | } |
1329 | ||
f3862f8b NIS |
1330 | #undef PerlIO_isutf8 |
1331 | int | |
1332 | PerlIO_isutf8(PerlIO *f) | |
1333 | { | |
ba412a5d JH |
1334 | if (f && *f) |
1335 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
1336 | else | |
1337 | { | |
1338 | SETERRNO(EBADF,SS$_IVCHAN); | |
1339 | return -1; | |
1340 | } | |
f3862f8b NIS |
1341 | } |
1342 | ||
9e353e3b | 1343 | #undef PerlIO_eof |
6f9d8c32 | 1344 | int |
9e353e3b | 1345 | PerlIO_eof(PerlIO *f) |
760ac839 | 1346 | { |
ba412a5d JH |
1347 | if (f && *f) |
1348 | return (*PerlIOBase(f)->tab->Eof)(f); | |
1349 | else | |
1350 | { | |
1351 | SETERRNO(EBADF,SS$_IVCHAN); | |
1352 | return -1; | |
1353 | } | |
9e353e3b NIS |
1354 | } |
1355 | ||
1356 | #undef PerlIO_error | |
1357 | int | |
1358 | PerlIO_error(PerlIO *f) | |
1359 | { | |
ba412a5d JH |
1360 | if (f && *f) |
1361 | return (*PerlIOBase(f)->tab->Error)(f); | |
1362 | else | |
1363 | { | |
1364 | SETERRNO(EBADF,SS$_IVCHAN); | |
1365 | return -1; | |
1366 | } | |
9e353e3b NIS |
1367 | } |
1368 | ||
1369 | #undef PerlIO_clearerr | |
1370 | void | |
1371 | PerlIO_clearerr(PerlIO *f) | |
1372 | { | |
f5b9d040 NIS |
1373 | if (f && *f) |
1374 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
ba412a5d JH |
1375 | else |
1376 | SETERRNO(EBADF,SS$_IVCHAN); | |
9e353e3b NIS |
1377 | } |
1378 | ||
1379 | #undef PerlIO_setlinebuf | |
1380 | void | |
1381 | PerlIO_setlinebuf(PerlIO *f) | |
1382 | { | |
ba412a5d JH |
1383 | if (f && *f) |
1384 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
1385 | else | |
1386 | SETERRNO(EBADF,SS$_IVCHAN); | |
9e353e3b NIS |
1387 | } |
1388 | ||
1389 | #undef PerlIO_has_base | |
1390 | int | |
1391 | PerlIO_has_base(PerlIO *f) | |
1392 | { | |
ba412a5d | 1393 | if (f && *f) { return (PerlIOBase(f)->tab->Get_base != NULL); } |
9e353e3b | 1394 | return 0; |
760ac839 LW |
1395 | } |
1396 | ||
9e353e3b NIS |
1397 | #undef PerlIO_fast_gets |
1398 | int | |
1399 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 1400 | { |
5e2ab84b | 1401 | if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) |
6f9d8c32 | 1402 | { |
5e2ab84b NIS |
1403 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1404 | return (tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 1405 | } |
9e353e3b NIS |
1406 | return 0; |
1407 | } | |
1408 | ||
1409 | #undef PerlIO_has_cntptr | |
1410 | int | |
1411 | PerlIO_has_cntptr(PerlIO *f) | |
1412 | { | |
1413 | if (f && *f) | |
1414 | { | |
1415 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1416 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
1417 | } | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | #undef PerlIO_canset_cnt | |
1422 | int | |
1423 | PerlIO_canset_cnt(PerlIO *f) | |
1424 | { | |
1425 | if (f && *f) | |
1426 | { | |
c7fc522f NIS |
1427 | PerlIOl *l = PerlIOBase(f); |
1428 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 1429 | } |
c7fc522f | 1430 | return 0; |
760ac839 LW |
1431 | } |
1432 | ||
1433 | #undef PerlIO_get_base | |
888911fc | 1434 | STDCHAR * |
a20bf0c3 | 1435 | PerlIO_get_base(PerlIO *f) |
760ac839 | 1436 | { |
ba412a5d JH |
1437 | if (f && *f) |
1438 | return (*PerlIOBase(f)->tab->Get_base)(f); | |
1439 | return NULL; | |
9e353e3b NIS |
1440 | } |
1441 | ||
1442 | #undef PerlIO_get_bufsiz | |
1443 | int | |
1444 | PerlIO_get_bufsiz(PerlIO *f) | |
1445 | { | |
ba412a5d JH |
1446 | if (f && *f) |
1447 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
1448 | return 0; | |
9e353e3b NIS |
1449 | } |
1450 | ||
1451 | #undef PerlIO_get_ptr | |
1452 | STDCHAR * | |
1453 | PerlIO_get_ptr(PerlIO *f) | |
1454 | { | |
5e2ab84b NIS |
1455 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1456 | if (tab->Get_ptr == NULL) | |
1457 | return NULL; | |
1458 | return (*tab->Get_ptr)(f); | |
9e353e3b NIS |
1459 | } |
1460 | ||
1461 | #undef PerlIO_get_cnt | |
05d1247b | 1462 | int |
9e353e3b NIS |
1463 | PerlIO_get_cnt(PerlIO *f) |
1464 | { | |
5e2ab84b NIS |
1465 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1466 | if (tab->Get_cnt == NULL) | |
1467 | return 0; | |
1468 | return (*tab->Get_cnt)(f); | |
9e353e3b NIS |
1469 | } |
1470 | ||
1471 | #undef PerlIO_set_cnt | |
1472 | void | |
05d1247b | 1473 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 1474 | { |
f3862f8b | 1475 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
1476 | } |
1477 | ||
1478 | #undef PerlIO_set_ptrcnt | |
1479 | void | |
05d1247b | 1480 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 1481 | { |
5e2ab84b NIS |
1482 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1483 | if (tab->Set_ptrcnt == NULL) | |
1484 | { | |
1485 | dTHX; | |
1486 | Perl_croak(aTHX_ "PerlIO buffer snooping abuse"); | |
1487 | } | |
f3862f8b | 1488 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
1489 | } |
1490 | ||
1491 | /*--------------------------------------------------------------------------------------*/ | |
dfebf958 NIS |
1492 | /* utf8 and raw dummy layers */ |
1493 | ||
26fb694e | 1494 | IV |
e3f3bf95 | 1495 | PerlIOUtf8_pushed(PerlIO *f, const char *mode, SV *arg) |
26fb694e NIS |
1496 | { |
1497 | if (PerlIONext(f)) | |
1498 | { | |
a999f61b | 1499 | dTHX; |
26fb694e | 1500 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
a999f61b | 1501 | PerlIO_pop(aTHX_ f); |
26fb694e NIS |
1502 | if (tab->kind & PERLIO_K_UTF8) |
1503 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1504 | else | |
1505 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
1506 | return 0; | |
1507 | } | |
1508 | return -1; | |
1509 | } | |
1510 | ||
dfebf958 NIS |
1511 | PerlIO_funcs PerlIO_utf8 = { |
1512 | "utf8", | |
1513 | sizeof(PerlIOl), | |
26fb694e | 1514 | PERLIO_K_DUMMY|PERLIO_F_UTF8, |
26fb694e NIS |
1515 | PerlIOUtf8_pushed, |
1516 | NULL, | |
1517 | NULL, | |
1518 | NULL, | |
1519 | NULL, | |
1520 | NULL, | |
1521 | NULL, | |
1522 | NULL, | |
e3f3bf95 NIS |
1523 | NULL, |
1524 | NULL, | |
1525 | NULL, | |
26fb694e NIS |
1526 | NULL, /* flush */ |
1527 | NULL, /* fill */ | |
1528 | NULL, | |
1529 | NULL, | |
1530 | NULL, | |
1531 | NULL, | |
1532 | NULL, /* get_base */ | |
1533 | NULL, /* get_bufsiz */ | |
1534 | NULL, /* get_ptr */ | |
1535 | NULL, /* get_cnt */ | |
1536 | NULL, /* set_ptrcnt */ | |
1537 | }; | |
1538 | ||
1539 | PerlIO_funcs PerlIO_byte = { | |
1540 | "bytes", | |
1541 | sizeof(PerlIOl), | |
1542 | PERLIO_K_DUMMY, | |
dfebf958 NIS |
1543 | PerlIOUtf8_pushed, |
1544 | NULL, | |
1545 | NULL, | |
1546 | NULL, | |
1547 | NULL, | |
1548 | NULL, | |
1549 | NULL, | |
1550 | NULL, | |
e3f3bf95 NIS |
1551 | NULL, |
1552 | NULL, | |
1553 | NULL, | |
dfebf958 NIS |
1554 | NULL, /* flush */ |
1555 | NULL, /* fill */ | |
1556 | NULL, | |
1557 | NULL, | |
1558 | NULL, | |
1559 | NULL, | |
1560 | NULL, /* get_base */ | |
1561 | NULL, /* get_bufsiz */ | |
1562 | NULL, /* get_ptr */ | |
1563 | NULL, /* get_cnt */ | |
1564 | NULL, /* set_ptrcnt */ | |
1565 | }; | |
1566 | ||
1567 | PerlIO * | |
fcf2db38 | 1568 | PerlIORaw_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n,const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args) |
dfebf958 | 1569 | { |
4b803d04 | 1570 | PerlIO_funcs *tab = PerlIO_default_btm(); |
fcf2db38 | 1571 | return (*tab->Open)(aTHX_ tab,layers,n-1,mode,fd,imode,perm,old,narg,args); |
dfebf958 NIS |
1572 | } |
1573 | ||
1574 | PerlIO_funcs PerlIO_raw = { | |
1575 | "raw", | |
1576 | sizeof(PerlIOl), | |
4b803d04 | 1577 | PERLIO_K_DUMMY, |
dfebf958 | 1578 | PerlIORaw_pushed, |
26fb694e | 1579 | PerlIOBase_popped, |
e3f3bf95 NIS |
1580 | PerlIORaw_open, |
1581 | NULL, | |
1582 | NULL, | |
dfebf958 NIS |
1583 | NULL, |
1584 | NULL, | |
1585 | NULL, | |
1586 | NULL, | |
1587 | NULL, | |
1588 | NULL, | |
1589 | NULL, /* flush */ | |
1590 | NULL, /* fill */ | |
1591 | NULL, | |
1592 | NULL, | |
1593 | NULL, | |
1594 | NULL, | |
1595 | NULL, /* get_base */ | |
1596 | NULL, /* get_bufsiz */ | |
1597 | NULL, /* get_ptr */ | |
1598 | NULL, /* get_cnt */ | |
1599 | NULL, /* set_ptrcnt */ | |
1600 | }; | |
1601 | /*--------------------------------------------------------------------------------------*/ | |
1602 | /*--------------------------------------------------------------------------------------*/ | |
9e353e3b NIS |
1603 | /* "Methods" of the "base class" */ |
1604 | ||
1605 | IV | |
1606 | PerlIOBase_fileno(PerlIO *f) | |
1607 | { | |
1608 | return PerlIO_fileno(PerlIONext(f)); | |
1609 | } | |
1610 | ||
f5b9d040 NIS |
1611 | char * |
1612 | PerlIO_modestr(PerlIO *f,char *buf) | |
1613 | { | |
1614 | char *s = buf; | |
1615 | IV flags = PerlIOBase(f)->flags; | |
5f1a76d0 NIS |
1616 | if (flags & PERLIO_F_APPEND) |
1617 | { | |
1618 | *s++ = 'a'; | |
1619 | if (flags & PERLIO_F_CANREAD) | |
1620 | { | |
1621 | *s++ = '+'; | |
1622 | } | |
766a733e | 1623 | } |
5f1a76d0 NIS |
1624 | else if (flags & PERLIO_F_CANREAD) |
1625 | { | |
1626 | *s++ = 'r'; | |
1627 | if (flags & PERLIO_F_CANWRITE) | |
1628 | *s++ = '+'; | |
1629 | } | |
1630 | else if (flags & PERLIO_F_CANWRITE) | |
1631 | { | |
1632 | *s++ = 'w'; | |
1633 | if (flags & PERLIO_F_CANREAD) | |
1634 | { | |
1635 | *s++ = '+'; | |
1636 | } | |
1637 | } | |
1638 | #if O_TEXT != O_BINARY | |
1639 | if (!(flags & PERLIO_F_CRLF)) | |
a4d3c1d3 | 1640 | *s++ = 'b'; |
5f1a76d0 | 1641 | #endif |
f5b9d040 NIS |
1642 | *s = '\0'; |
1643 | return buf; | |
1644 | } | |
1645 | ||
76ced9ad | 1646 | IV |
e3f3bf95 | 1647 | PerlIOBase_pushed(PerlIO *f, const char *mode, SV *arg) |
9e353e3b | 1648 | { |
76ced9ad | 1649 | PerlIOl *l = PerlIOBase(f); |
b7953727 | 1650 | #if 0 |
f5b9d040 NIS |
1651 | const char *omode = mode; |
1652 | char temp[8]; | |
b7953727 | 1653 | #endif |
5e2ab84b | 1654 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
76ced9ad | 1655 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
f5b9d040 | 1656 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
5e2ab84b NIS |
1657 | if (tab->Set_ptrcnt != NULL) |
1658 | l->flags |= PERLIO_F_FASTGETS; | |
76ced9ad | 1659 | if (mode) |
6f9d8c32 | 1660 | { |
c5af4229 NIS |
1661 | if (*mode == '#' || *mode == 'I') |
1662 | mode++; | |
76ced9ad | 1663 | switch (*mode++) |
06da4f11 | 1664 | { |
76ced9ad | 1665 | case 'r': |
f5b9d040 | 1666 | l->flags |= PERLIO_F_CANREAD; |
76ced9ad NIS |
1667 | break; |
1668 | case 'a': | |
f5b9d040 | 1669 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1670 | break; |
1671 | case 'w': | |
f5b9d040 | 1672 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1673 | break; |
1674 | default: | |
ba412a5d | 1675 | SETERRNO(EINVAL,LIB$_INVARG); |
76ced9ad NIS |
1676 | return -1; |
1677 | } | |
1678 | while (*mode) | |
1679 | { | |
1680 | switch (*mode++) | |
1681 | { | |
1682 | case '+': | |
1683 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
1684 | break; | |
1685 | case 'b': | |
f5b9d040 NIS |
1686 | l->flags &= ~PERLIO_F_CRLF; |
1687 | break; | |
1688 | case 't': | |
1689 | l->flags |= PERLIO_F_CRLF; | |
76ced9ad NIS |
1690 | break; |
1691 | default: | |
ba412a5d JH |
1692 | SETERRNO(EINVAL,LIB$_INVARG); |
1693 | return -1; | |
76ced9ad | 1694 | } |
06da4f11 | 1695 | } |
6f9d8c32 | 1696 | } |
76ced9ad NIS |
1697 | else |
1698 | { | |
1699 | if (l->next) | |
1700 | { | |
1701 | l->flags |= l->next->flags & | |
f5b9d040 | 1702 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad NIS |
1703 | } |
1704 | } | |
5e2ab84b | 1705 | #if 0 |
4659c93f | 1706 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08"UVxf" (%s)\n", |
f5b9d040 | 1707 | f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)", |
a4d3c1d3 | 1708 | l->flags,PerlIO_modestr(f,temp)); |
5e2ab84b | 1709 | #endif |
76ced9ad NIS |
1710 | return 0; |
1711 | } | |
1712 | ||
1713 | IV | |
1714 | PerlIOBase_popped(PerlIO *f) | |
1715 | { | |
1716 | return 0; | |
760ac839 LW |
1717 | } |
1718 | ||
9e353e3b NIS |
1719 | SSize_t |
1720 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1721 | { | |
a999f61b | 1722 | dTHX; |
9e353e3b | 1723 | Off_t old = PerlIO_tell(f); |
72e44f29 | 1724 | SSize_t done; |
e3f3bf95 | 1725 | PerlIO_push(aTHX_ f,&PerlIO_pending,"r",Nullsv); |
72e44f29 NIS |
1726 | done = PerlIOBuf_unread(f,vbuf,count); |
1727 | PerlIOSelf(f,PerlIOBuf)->posn = old - done; | |
1728 | return done; | |
9e353e3b NIS |
1729 | } |
1730 | ||
f6c77cf1 NIS |
1731 | SSize_t |
1732 | PerlIOBase_read(PerlIO *f, void *vbuf, Size_t count) | |
1733 | { | |
1734 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1735 | if (f) | |
1736 | { | |
1737 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
1738 | return 0; | |
1739 | while (count > 0) | |
1740 | { | |
1741 | SSize_t avail = PerlIO_get_cnt(f); | |
fb70fc7c BS |
1742 | SSize_t take = 0; |
1743 | if (avail > 0) | |
1744 | take = (count < avail) ? count : avail; | |
f6c77cf1 NIS |
1745 | if (take > 0) |
1746 | { | |
1747 | STDCHAR *ptr = PerlIO_get_ptr(f); | |
1748 | Copy(ptr,buf,take,STDCHAR); | |
1749 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); | |
1750 | count -= take; | |
1751 | buf += take; | |
1752 | } | |
1753 | if (count > 0 && avail <= 0) | |
1754 | { | |
1755 | if (PerlIO_fill(f) != 0) | |
1756 | break; | |
1757 | } | |
1758 | } | |
1759 | return (buf - (STDCHAR *) vbuf); | |
1760 | } | |
1761 | return 0; | |
1762 | } | |
1763 | ||
9e353e3b | 1764 | IV |
06da4f11 | 1765 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
1766 | { |
1767 | return 0; | |
1768 | } | |
1769 | ||
1770 | IV | |
06da4f11 NIS |
1771 | PerlIOBase_noop_fail(PerlIO *f) |
1772 | { | |
1773 | return -1; | |
1774 | } | |
1775 | ||
1776 | IV | |
9e353e3b NIS |
1777 | PerlIOBase_close(PerlIO *f) |
1778 | { | |
1779 | IV code = 0; | |
f5b9d040 | 1780 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
1781 | if (PerlIO_flush(f) != 0) |
1782 | code = -1; | |
f6c77cf1 | 1783 | if (n && *n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b NIS |
1784 | code = -1; |
1785 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
1786 | return code; | |
1787 | } | |
1788 | ||
1789 | IV | |
1790 | PerlIOBase_eof(PerlIO *f) | |
1791 | { | |
1792 | if (f && *f) | |
1793 | { | |
1794 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
1795 | } | |
1796 | return 1; | |
1797 | } | |
1798 | ||
1799 | IV | |
1800 | PerlIOBase_error(PerlIO *f) | |
1801 | { | |
1802 | if (f && *f) | |
1803 | { | |
1804 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
1805 | } | |
1806 | return 1; | |
1807 | } | |
1808 | ||
1809 | void | |
1810 | PerlIOBase_clearerr(PerlIO *f) | |
1811 | { | |
1812 | if (f && *f) | |
1813 | { | |
f5b9d040 NIS |
1814 | PerlIO *n = PerlIONext(f); |
1815 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); | |
1816 | if (n) | |
1817 | PerlIO_clearerr(n); | |
9e353e3b NIS |
1818 | } |
1819 | } | |
1820 | ||
1821 | void | |
1822 | PerlIOBase_setlinebuf(PerlIO *f) | |
1823 | { | |
f6c77cf1 NIS |
1824 | if (f) |
1825 | { | |
1826 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF; | |
1827 | } | |
9e353e3b NIS |
1828 | } |
1829 | ||
9e353e3b NIS |
1830 | /*--------------------------------------------------------------------------------------*/ |
1831 | /* Bottom-most level for UNIX-like case */ | |
1832 | ||
1833 | typedef struct | |
1834 | { | |
1835 | struct _PerlIO base; /* The generic part */ | |
1836 | int fd; /* UNIX like file descriptor */ | |
1837 | int oflags; /* open/fcntl flags */ | |
1838 | } PerlIOUnix; | |
1839 | ||
6f9d8c32 | 1840 | int |
9e353e3b | 1841 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 1842 | { |
9e353e3b NIS |
1843 | int oflags = -1; |
1844 | switch(*mode) | |
1845 | { | |
1846 | case 'r': | |
1847 | oflags = O_RDONLY; | |
1848 | if (*++mode == '+') | |
1849 | { | |
1850 | oflags = O_RDWR; | |
1851 | mode++; | |
1852 | } | |
1853 | break; | |
1854 | ||
1855 | case 'w': | |
1856 | oflags = O_CREAT|O_TRUNC; | |
1857 | if (*++mode == '+') | |
1858 | { | |
1859 | oflags |= O_RDWR; | |
1860 | mode++; | |
1861 | } | |
1862 | else | |
1863 | oflags |= O_WRONLY; | |
1864 | break; | |
1865 | ||
1866 | case 'a': | |
1867 | oflags = O_CREAT|O_APPEND; | |
1868 | if (*++mode == '+') | |
1869 | { | |
1870 | oflags |= O_RDWR; | |
1871 | mode++; | |
1872 | } | |
1873 | else | |
1874 | oflags |= O_WRONLY; | |
1875 | break; | |
1876 | } | |
83b075c3 NIS |
1877 | if (*mode == 'b') |
1878 | { | |
f5b9d040 NIS |
1879 | oflags |= O_BINARY; |
1880 | oflags &= ~O_TEXT; | |
1881 | mode++; | |
1882 | } | |
1883 | else if (*mode == 't') | |
1884 | { | |
1885 | oflags |= O_TEXT; | |
1886 | oflags &= ~O_BINARY; | |
60382766 NIS |
1887 | mode++; |
1888 | } | |
99efab12 NIS |
1889 | /* Always open in binary mode */ |
1890 | oflags |= O_BINARY; | |
9e353e3b | 1891 | if (*mode || oflags == -1) |
6f9d8c32 | 1892 | { |
ba412a5d | 1893 | SETERRNO(EINVAL,LIB$_INVARG); |
9e353e3b | 1894 | oflags = -1; |
6f9d8c32 | 1895 | } |
9e353e3b NIS |
1896 | return oflags; |
1897 | } | |
1898 | ||
1899 | IV | |
1900 | PerlIOUnix_fileno(PerlIO *f) | |
1901 | { | |
1902 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
1903 | } | |
1904 | ||
4b803d04 | 1905 | IV |
e3f3bf95 | 1906 | PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 1907 | { |
e3f3bf95 | 1908 | IV code = PerlIOBase_pushed(f,mode,arg); |
4b803d04 NIS |
1909 | if (*PerlIONext(f)) |
1910 | { | |
1911 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); | |
1912 | s->fd = PerlIO_fileno(PerlIONext(f)); | |
1913 | s->oflags = PerlIOUnix_oflags(mode); | |
1914 | } | |
1915 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1916 | return code; | |
1917 | } | |
1918 | ||
9e353e3b | 1919 | PerlIO * |
fcf2db38 | 1920 | PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 1921 | { |
ee518936 | 1922 | if (f) |
9e353e3b | 1923 | { |
ee518936 NIS |
1924 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
1925 | (*PerlIOBase(f)->tab->Close)(f); | |
1926 | } | |
1927 | if (narg > 0) | |
1928 | { | |
1929 | char *path = SvPV_nolen(*args); | |
1930 | if (*mode == '#') | |
1931 | mode++; | |
1932 | else | |
9e353e3b | 1933 | { |
ee518936 NIS |
1934 | imode = PerlIOUnix_oflags(mode); |
1935 | perm = 0666; | |
1936 | } | |
1937 | if (imode != -1) | |
1938 | { | |
1939 | fd = PerlLIO_open3(path,imode,perm); | |
9e353e3b NIS |
1940 | } |
1941 | } | |
ee518936 | 1942 | if (fd >= 0) |
9e353e3b | 1943 | { |
ee518936 NIS |
1944 | PerlIOUnix *s; |
1945 | if (*mode == 'I') | |
1946 | mode++; | |
1947 | if (!f) | |
9e353e3b | 1948 | { |
ee518936 | 1949 | f = PerlIO_allocate(aTHX); |
f6c77cf1 | 1950 | s = PerlIOSelf(PerlIO_push(aTHX_ f,self,mode,PerlIOArg),PerlIOUnix); |
ee518936 NIS |
1951 | } |
1952 | else | |
1953 | s = PerlIOSelf(f,PerlIOUnix); | |
1954 | s->fd = fd; | |
1955 | s->oflags = imode; | |
1956 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1957 | return f; | |
1958 | } | |
1959 | else | |
1960 | { | |
1961 | if (f) | |
1962 | { | |
1963 | /* FIXME: pop layers ??? */ | |
9e353e3b | 1964 | } |
ee518936 | 1965 | return NULL; |
9e353e3b | 1966 | } |
9e353e3b NIS |
1967 | } |
1968 | ||
1969 | SSize_t | |
1970 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
1971 | { | |
adb71456 | 1972 | dTHX; |
9e353e3b | 1973 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 NIS |
1974 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1975 | return 0; | |
9e353e3b NIS |
1976 | while (1) |
1977 | { | |
00b02797 | 1978 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 1979 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1980 | { |
1981 | if (len < 0) | |
1982 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1983 | else if (len == 0 && count != 0) | |
1984 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1985 | return len; | |
1986 | } | |
0a8e0eff | 1987 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1988 | } |
1989 | } | |
1990 | ||
1991 | SSize_t | |
1992 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
1993 | { | |
adb71456 | 1994 | dTHX; |
9e353e3b NIS |
1995 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1996 | while (1) | |
1997 | { | |
00b02797 | 1998 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 1999 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
2000 | { |
2001 | if (len < 0) | |
2002 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2003 | return len; | |
2004 | } | |
0a8e0eff | 2005 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
2006 | } |
2007 | } | |
2008 | ||
2009 | IV | |
2010 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
2011 | { | |
92bff44d | 2012 | dSYS; |
00b02797 | 2013 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 2014 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
2015 | return (new == (Off_t) -1) ? -1 : 0; |
2016 | } | |
2017 | ||
2018 | Off_t | |
2019 | PerlIOUnix_tell(PerlIO *f) | |
2020 | { | |
7bcba3d4 | 2021 | dSYS; |
00b02797 | 2022 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
2023 | } |
2024 | ||
2025 | IV | |
2026 | PerlIOUnix_close(PerlIO *f) | |
2027 | { | |
adb71456 | 2028 | dTHX; |
9e353e3b NIS |
2029 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
2030 | int code = 0; | |
00b02797 | 2031 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
2032 | { |
2033 | if (errno != EINTR) | |
2034 | { | |
2035 | code = -1; | |
2036 | break; | |
2037 | } | |
0a8e0eff | 2038 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
2039 | } |
2040 | if (code == 0) | |
2041 | { | |
2042 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
2043 | } | |
2044 | return code; | |
2045 | } | |
2046 | ||
2047 | PerlIO_funcs PerlIO_unix = { | |
2048 | "unix", | |
2049 | sizeof(PerlIOUnix), | |
f5b9d040 | 2050 | PERLIO_K_RAW, |
4b803d04 | 2051 | PerlIOUnix_pushed, |
06da4f11 | 2052 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
2053 | PerlIOUnix_open, |
2054 | NULL, | |
2055 | PerlIOUnix_fileno, | |
9e353e3b NIS |
2056 | PerlIOUnix_read, |
2057 | PerlIOBase_unread, | |
2058 | PerlIOUnix_write, | |
2059 | PerlIOUnix_seek, | |
2060 | PerlIOUnix_tell, | |
2061 | PerlIOUnix_close, | |
76ced9ad NIS |
2062 | PerlIOBase_noop_ok, /* flush */ |
2063 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
2064 | PerlIOBase_eof, |
2065 | PerlIOBase_error, | |
2066 | PerlIOBase_clearerr, | |
2067 | PerlIOBase_setlinebuf, | |
2068 | NULL, /* get_base */ | |
2069 | NULL, /* get_bufsiz */ | |
2070 | NULL, /* get_ptr */ | |
2071 | NULL, /* get_cnt */ | |
2072 | NULL, /* set_ptrcnt */ | |
2073 | }; | |
2074 | ||
2075 | /*--------------------------------------------------------------------------------------*/ | |
2076 | /* stdio as a layer */ | |
2077 | ||
2078 | typedef struct | |
2079 | { | |
2080 | struct _PerlIO base; | |
2081 | FILE * stdio; /* The stream */ | |
2082 | } PerlIOStdio; | |
2083 | ||
2084 | IV | |
2085 | PerlIOStdio_fileno(PerlIO *f) | |
2086 | { | |
7bcba3d4 | 2087 | dSYS; |
eaf8b698 | 2088 | return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2089 | } |
2090 | ||
766a733e | 2091 | char * |
f5b9d040 NIS |
2092 | PerlIOStdio_mode(const char *mode,char *tmode) |
2093 | { | |
766a733e NIS |
2094 | char *ret = tmode; |
2095 | while (*mode) | |
2096 | { | |
2097 | *tmode++ = *mode++; | |
2098 | } | |
f5b9d040 NIS |
2099 | if (O_BINARY != O_TEXT) |
2100 | { | |
f5b9d040 | 2101 | *tmode++ = 'b'; |
f5b9d040 | 2102 | } |
766a733e | 2103 | *tmode = '\0'; |
f5b9d040 NIS |
2104 | return ret; |
2105 | } | |
9e353e3b | 2106 | |
4b803d04 NIS |
2107 | /* This isn't used yet ... */ |
2108 | IV | |
e3f3bf95 | 2109 | PerlIOStdio_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 NIS |
2110 | { |
2111 | if (*PerlIONext(f)) | |
2112 | { | |
7bcba3d4 | 2113 | dSYS; |
4b803d04 NIS |
2114 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
2115 | char tmode[8]; | |
2116 | FILE *stdio = PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)),mode = PerlIOStdio_mode(mode,tmode)); | |
2117 | if (stdio) | |
2118 | s->stdio = stdio; | |
2119 | else | |
2120 | return -1; | |
2121 | } | |
e3f3bf95 | 2122 | return PerlIOBase_pushed(f,mode,arg); |
4b803d04 NIS |
2123 | } |
2124 | ||
9e353e3b NIS |
2125 | #undef PerlIO_importFILE |
2126 | PerlIO * | |
2127 | PerlIO_importFILE(FILE *stdio, int fl) | |
2128 | { | |
5f1a76d0 | 2129 | dTHX; |
9e353e3b NIS |
2130 | PerlIO *f = NULL; |
2131 | if (stdio) | |
2132 | { | |
e3f3bf95 | 2133 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"r+",Nullsv),PerlIOStdio); |
9e353e3b NIS |
2134 | s->stdio = stdio; |
2135 | } | |
2136 | return f; | |
2137 | } | |
2138 | ||
2139 | PerlIO * | |
fcf2db38 | 2140 | PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 2141 | { |
ee518936 NIS |
2142 | char tmode[8]; |
2143 | if (f) | |
9e353e3b | 2144 | { |
ee518936 NIS |
2145 | char *path = SvPV_nolen(*args); |
2146 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
2147 | FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); | |
2148 | if (!s->stdio) | |
2149 | return NULL; | |
2150 | s->stdio = stdio; | |
2151 | return f; | |
9e353e3b | 2152 | } |
ee518936 NIS |
2153 | else |
2154 | { | |
2155 | if (narg > 0) | |
2156 | { | |
2157 | char *path = SvPV_nolen(*args); | |
2158 | if (*mode == '#') | |
2159 | { | |
2160 | mode++; | |
2161 | fd = PerlLIO_open3(path,imode,perm); | |
2162 | } | |
2163 | else | |
2164 | { | |
2165 | FILE *stdio = PerlSIO_fopen(path,mode); | |
2166 | if (stdio) | |
2167 | { | |
a999f61b | 2168 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)), self, |
f6c77cf1 | 2169 | (mode = PerlIOStdio_mode(mode,tmode)),PerlIOArg), |
ee518936 NIS |
2170 | PerlIOStdio); |
2171 | s->stdio = stdio; | |
2172 | } | |
2173 | return f; | |
2174 | } | |
2175 | } | |
2176 | if (fd >= 0) | |
2177 | { | |
2178 | FILE *stdio = NULL; | |
2179 | int init = 0; | |
2180 | if (*mode == 'I') | |
2181 | { | |
2182 | init = 1; | |
2183 | mode++; | |
2184 | } | |
2185 | if (init) | |
2186 | { | |
2187 | switch(fd) | |
2188 | { | |
2189 | case 0: | |
2190 | stdio = PerlSIO_stdin; | |
2191 | break; | |
2192 | case 1: | |
2193 | stdio = PerlSIO_stdout; | |
2194 | break; | |
2195 | case 2: | |
2196 | stdio = PerlSIO_stderr; | |
2197 | break; | |
2198 | } | |
2199 | } | |
2200 | else | |
2201 | { | |
2202 | stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); | |
2203 | } | |
2204 | if (stdio) | |
2205 | { | |
f6c77cf1 | 2206 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),self,mode,PerlIOArg),PerlIOStdio); |
ee518936 NIS |
2207 | s->stdio = stdio; |
2208 | return f; | |
2209 | } | |
2210 | } | |
2211 | } | |
2212 | return NULL; | |
9e353e3b NIS |
2213 | } |
2214 | ||
2215 | SSize_t | |
2216 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
2217 | { | |
7bcba3d4 | 2218 | dSYS; |
9e353e3b | 2219 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f | 2220 | SSize_t got = 0; |
9e353e3b NIS |
2221 | if (count == 1) |
2222 | { | |
2223 | STDCHAR *buf = (STDCHAR *) vbuf; | |
2224 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
2225 | * Linux's stdio does not do that for fread() | |
2226 | */ | |
eaf8b698 | 2227 | int ch = PerlSIO_fgetc(s); |
9e353e3b NIS |
2228 | if (ch != EOF) |
2229 | { | |
2230 | *buf = ch; | |
c7fc522f | 2231 | got = 1; |
9e353e3b | 2232 | } |
9e353e3b | 2233 | } |
c7fc522f | 2234 | else |
eaf8b698 | 2235 | got = PerlSIO_fread(vbuf,1,count,s); |
c7fc522f | 2236 | return got; |
9e353e3b NIS |
2237 | } |
2238 | ||
2239 | SSize_t | |
2240 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2241 | { | |
7bcba3d4 | 2242 | dSYS; |
9e353e3b NIS |
2243 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
2244 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
2245 | SSize_t unread = 0; | |
2246 | while (count > 0) | |
2247 | { | |
2248 | int ch = *buf-- & 0xff; | |
eaf8b698 | 2249 | if (PerlSIO_ungetc(ch,s) != ch) |
9e353e3b NIS |
2250 | break; |
2251 | unread++; | |
2252 | count--; | |
2253 | } | |
2254 | return unread; | |
2255 | } | |
2256 | ||
2257 | SSize_t | |
2258 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
2259 | { | |
7bcba3d4 | 2260 | dSYS; |
eaf8b698 | 2261 | return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2262 | } |
2263 | ||
2264 | IV | |
2265 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
2266 | { | |
7bcba3d4 | 2267 | dSYS; |
c7fc522f | 2268 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2269 | return PerlSIO_fseek(stdio,offset,whence); |
9e353e3b NIS |
2270 | } |
2271 | ||
2272 | Off_t | |
2273 | PerlIOStdio_tell(PerlIO *f) | |
2274 | { | |
7bcba3d4 | 2275 | dSYS; |
c7fc522f | 2276 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2277 | return PerlSIO_ftell(stdio); |
9e353e3b NIS |
2278 | } |
2279 | ||
2280 | IV | |
2281 | PerlIOStdio_close(PerlIO *f) | |
2282 | { | |
7bcba3d4 | 2283 | dSYS; |
af130d45 | 2284 | #ifdef SOCKS5_VERSION_NAME |
af489807 JH |
2285 | int optval; |
2286 | Sock_size_t optlen = sizeof(int); | |
8e4bc33b | 2287 | #endif |
3789aae2 | 2288 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 | 2289 | return( |
af130d45 | 2290 | #ifdef SOCKS5_VERSION_NAME |
af489807 | 2291 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (void *)&optval, &optlen) < 0) ? |
eaf8b698 | 2292 | PerlSIO_fclose(stdio) : |
8e4bc33b YST |
2293 | close(PerlIO_fileno(f)) |
2294 | #else | |
2295 | PerlSIO_fclose(stdio) | |
2296 | #endif | |
2297 | ); | |
2298 | ||
9e353e3b NIS |
2299 | } |
2300 | ||
2301 | IV | |
2302 | PerlIOStdio_flush(PerlIO *f) | |
2303 | { | |
7bcba3d4 | 2304 | dSYS; |
9e353e3b | 2305 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 NIS |
2306 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
2307 | { | |
eaf8b698 | 2308 | return PerlSIO_fflush(stdio); |
88b61e10 NIS |
2309 | } |
2310 | else | |
2311 | { | |
2312 | #if 0 | |
2313 | /* FIXME: This discards ungetc() and pre-read stuff which is | |
2314 | not right if this is just a "sync" from a layer above | |
2315 | Suspect right design is to do _this_ but not have layer above | |
2316 | flush this layer read-to-read | |
2317 | */ | |
2318 | /* Not writeable - sync by attempting a seek */ | |
2319 | int err = errno; | |
eaf8b698 | 2320 | if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
88b61e10 NIS |
2321 | errno = err; |
2322 | #endif | |
2323 | } | |
2324 | return 0; | |
9e353e3b NIS |
2325 | } |
2326 | ||
2327 | IV | |
06da4f11 NIS |
2328 | PerlIOStdio_fill(PerlIO *f) |
2329 | { | |
7bcba3d4 | 2330 | dSYS; |
06da4f11 NIS |
2331 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
2332 | int c; | |
3789aae2 NIS |
2333 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
2334 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
2335 | { | |
eaf8b698 | 2336 | if (PerlSIO_fflush(stdio) != 0) |
3789aae2 NIS |
2337 | return EOF; |
2338 | } | |
eaf8b698 NIS |
2339 | c = PerlSIO_fgetc(stdio); |
2340 | if (c == EOF || PerlSIO_ungetc(c,stdio) != c) | |
06da4f11 NIS |
2341 | return EOF; |
2342 | return 0; | |
2343 | } | |
2344 | ||
2345 | IV | |
9e353e3b NIS |
2346 | PerlIOStdio_eof(PerlIO *f) |
2347 | { | |
7bcba3d4 | 2348 | dSYS; |
eaf8b698 | 2349 | return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2350 | } |
2351 | ||
2352 | IV | |
2353 | PerlIOStdio_error(PerlIO *f) | |
2354 | { | |
7bcba3d4 | 2355 | dSYS; |
eaf8b698 | 2356 | return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2357 | } |
2358 | ||
2359 | void | |
2360 | PerlIOStdio_clearerr(PerlIO *f) | |
2361 | { | |
7bcba3d4 | 2362 | dSYS; |
eaf8b698 | 2363 | PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2364 | } |
2365 | ||
2366 | void | |
2367 | PerlIOStdio_setlinebuf(PerlIO *f) | |
2368 | { | |
7bcba3d4 | 2369 | dSYS; |
9e353e3b | 2370 | #ifdef HAS_SETLINEBUF |
eaf8b698 | 2371 | PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b | 2372 | #else |
eaf8b698 | 2373 | PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b NIS |
2374 | #endif |
2375 | } | |
2376 | ||
2377 | #ifdef FILE_base | |
2378 | STDCHAR * | |
2379 | PerlIOStdio_get_base(PerlIO *f) | |
2380 | { | |
7bcba3d4 | 2381 | dSYS; |
9e353e3b | 2382 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2383 | return PerlSIO_get_base(stdio); |
9e353e3b NIS |
2384 | } |
2385 | ||
2386 | Size_t | |
2387 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
2388 | { | |
7bcba3d4 | 2389 | dSYS; |
9e353e3b | 2390 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2391 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b NIS |
2392 | } |
2393 | #endif | |
2394 | ||
2395 | #ifdef USE_STDIO_PTR | |
2396 | STDCHAR * | |
2397 | PerlIOStdio_get_ptr(PerlIO *f) | |
2398 | { | |
7bcba3d4 | 2399 | dSYS; |
9e353e3b | 2400 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2401 | return PerlSIO_get_ptr(stdio); |
9e353e3b NIS |
2402 | } |
2403 | ||
2404 | SSize_t | |
2405 | PerlIOStdio_get_cnt(PerlIO *f) | |
2406 | { | |
7bcba3d4 | 2407 | dSYS; |
9e353e3b | 2408 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2409 | return PerlSIO_get_cnt(stdio); |
9e353e3b NIS |
2410 | } |
2411 | ||
2412 | void | |
2413 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
2414 | { | |
2415 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
7bcba3d4 | 2416 | dSYS; |
9e353e3b NIS |
2417 | if (ptr != NULL) |
2418 | { | |
2419 | #ifdef STDIO_PTR_LVALUE | |
eaf8b698 | 2420 | PerlSIO_set_ptr(stdio,ptr); |
9e353e3b | 2421 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
eaf8b698 | 2422 | if (PerlSIO_get_cnt(stdio) != (cnt)) |
9e353e3b NIS |
2423 | { |
2424 | dTHX; | |
eaf8b698 | 2425 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
9e353e3b NIS |
2426 | } |
2427 | #endif | |
2428 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
2429 | /* Setting ptr _does_ change cnt - we are done */ | |
2430 | return; | |
2431 | #endif | |
2432 | #else /* STDIO_PTR_LVALUE */ | |
eaf8b698 | 2433 | PerlProc_abort(); |
9e353e3b NIS |
2434 | #endif /* STDIO_PTR_LVALUE */ |
2435 | } | |
2436 | /* Now (or only) set cnt */ | |
2437 | #ifdef STDIO_CNT_LVALUE | |
eaf8b698 | 2438 | PerlSIO_set_cnt(stdio,cnt); |
9e353e3b NIS |
2439 | #else /* STDIO_CNT_LVALUE */ |
2440 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
eaf8b698 | 2441 | PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt)); |
9e353e3b | 2442 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
eaf8b698 | 2443 | PerlProc_abort(); |
9e353e3b NIS |
2444 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
2445 | #endif /* STDIO_CNT_LVALUE */ | |
2446 | } | |
2447 | ||
2448 | #endif | |
2449 | ||
2450 | PerlIO_funcs PerlIO_stdio = { | |
2451 | "stdio", | |
2452 | sizeof(PerlIOStdio), | |
f5b9d040 | 2453 | PERLIO_K_BUFFERED, |
06da4f11 NIS |
2454 | PerlIOBase_pushed, |
2455 | PerlIOBase_noop_ok, | |
e3f3bf95 NIS |
2456 | PerlIOStdio_open, |
2457 | NULL, | |
2458 | PerlIOStdio_fileno, | |
9e353e3b NIS |
2459 | PerlIOStdio_read, |
2460 | PerlIOStdio_unread, | |
2461 | PerlIOStdio_write, | |
2462 | PerlIOStdio_seek, | |
2463 | PerlIOStdio_tell, | |
2464 | PerlIOStdio_close, | |
2465 | PerlIOStdio_flush, | |
06da4f11 | 2466 | PerlIOStdio_fill, |
9e353e3b NIS |
2467 | PerlIOStdio_eof, |
2468 | PerlIOStdio_error, | |
2469 | PerlIOStdio_clearerr, | |
2470 | PerlIOStdio_setlinebuf, | |
2471 | #ifdef FILE_base | |
2472 | PerlIOStdio_get_base, | |
2473 | PerlIOStdio_get_bufsiz, | |
2474 | #else | |
2475 | NULL, | |
2476 | NULL, | |
2477 | #endif | |
2478 | #ifdef USE_STDIO_PTR | |
2479 | PerlIOStdio_get_ptr, | |
2480 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 2481 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
2482 | PerlIOStdio_set_ptrcnt |
2483 | #else /* STDIO_PTR_LVALUE */ | |
2484 | NULL | |
2485 | #endif /* STDIO_PTR_LVALUE */ | |
2486 | #else /* USE_STDIO_PTR */ | |
2487 | NULL, | |
2488 | NULL, | |
2489 | NULL | |
2490 | #endif /* USE_STDIO_PTR */ | |
2491 | }; | |
2492 | ||
2493 | #undef PerlIO_exportFILE | |
2494 | FILE * | |
2495 | PerlIO_exportFILE(PerlIO *f, int fl) | |
2496 | { | |
f7e7eb72 | 2497 | FILE *stdio; |
9e353e3b | 2498 | PerlIO_flush(f); |
f7e7eb72 NIS |
2499 | stdio = fdopen(PerlIO_fileno(f),"r+"); |
2500 | if (stdio) | |
2501 | { | |
a999f61b | 2502 | dTHX; |
e3f3bf95 | 2503 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ f,&PerlIO_stdio,"r+",Nullsv),PerlIOStdio); |
f7e7eb72 NIS |
2504 | s->stdio = stdio; |
2505 | } | |
2506 | return stdio; | |
9e353e3b NIS |
2507 | } |
2508 | ||
2509 | #undef PerlIO_findFILE | |
2510 | FILE * | |
2511 | PerlIO_findFILE(PerlIO *f) | |
2512 | { | |
f7e7eb72 NIS |
2513 | PerlIOl *l = *f; |
2514 | while (l) | |
2515 | { | |
2516 | if (l->tab == &PerlIO_stdio) | |
2517 | { | |
2518 | PerlIOStdio *s = PerlIOSelf(&l,PerlIOStdio); | |
2519 | return s->stdio; | |
2520 | } | |
2521 | l = *PerlIONext(&l); | |
2522 | } | |
9e353e3b NIS |
2523 | return PerlIO_exportFILE(f,0); |
2524 | } | |
2525 | ||
2526 | #undef PerlIO_releaseFILE | |
2527 | void | |
2528 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
2529 | { | |
2530 | } | |
2531 | ||
2532 | /*--------------------------------------------------------------------------------------*/ | |
2533 | /* perlio buffer layer */ | |
2534 | ||
5e2ab84b | 2535 | IV |
e3f3bf95 | 2536 | PerlIOBuf_pushed(PerlIO *f, const char *mode, SV *arg) |
5e2ab84b | 2537 | { |
7bcba3d4 | 2538 | dSYS; |
5e2ab84b | 2539 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1f474064 NIS |
2540 | int fd = PerlIO_fileno(f); |
2541 | Off_t posn; | |
2542 | if (fd >= 0 && PerlLIO_isatty(fd)) | |
2543 | { | |
a9c883f6 | 2544 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF|PERLIO_F_TTY; |
1f474064 NIS |
2545 | } |
2546 | posn = PerlIO_tell(PerlIONext(f)); | |
2547 | if (posn != (Off_t) -1) | |
2548 | { | |
2549 | b->posn = posn; | |
2550 | } | |
e3f3bf95 | 2551 | return PerlIOBase_pushed(f,mode,arg); |
5e2ab84b NIS |
2552 | } |
2553 | ||
9e353e3b | 2554 | PerlIO * |
fcf2db38 | 2555 | PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 2556 | { |
6f9d8c32 NIS |
2557 | if (f) |
2558 | { | |
ee518936 | 2559 | PerlIO *next = PerlIONext(f); |
fcf2db38 NIS |
2560 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-1, PerlIOBase(next)->tab); |
2561 | next = (*tab->Open)(aTHX_ tab, layers, n-1, mode,fd,imode,perm,next,narg,args); | |
f6c77cf1 | 2562 | if (!next || (*PerlIOBase(f)->tab->Pushed)(f,mode,PerlIOArg) != 0) |
c7fc522f | 2563 | { |
ee518936 | 2564 | return NULL; |
a4d3c1d3 | 2565 | } |
6f9d8c32 | 2566 | } |
ee518936 | 2567 | else |
9e353e3b | 2568 | { |
fcf2db38 | 2569 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-1, PerlIO_default_btm()); |
ee518936 NIS |
2570 | int init = 0; |
2571 | if (*mode == 'I') | |
2572 | { | |
2573 | init = 1; | |
2574 | mode++; | |
2575 | } | |
fcf2db38 | 2576 | f = (*tab->Open)(aTHX_ tab, layers, n-1, mode,fd,imode,perm,NULL,narg,args); |
ee518936 NIS |
2577 | if (f) |
2578 | { | |
b7953727 | 2579 | PerlIO_push(aTHX_ f,self,mode,PerlIOArg); |
ee518936 NIS |
2580 | fd = PerlIO_fileno(f); |
2581 | #if O_BINARY != O_TEXT | |
2582 | /* do something about failing setmode()? --jhi */ | |
2583 | PerlLIO_setmode(fd , O_BINARY); | |
2584 | #endif | |
2585 | if (init && fd == 2) | |
2586 | { | |
2587 | /* Initial stderr is unbuffered */ | |
2588 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
2589 | } | |
2590 | } | |
9e353e3b NIS |
2591 | } |
2592 | return f; | |
2593 | } | |
2594 | ||
9e353e3b NIS |
2595 | /* This "flush" is akin to sfio's sync in that it handles files in either |
2596 | read or write state | |
2597 | */ | |
2598 | IV | |
2599 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 2600 | { |
9e353e3b NIS |
2601 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2602 | int code = 0; | |
2603 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2604 | { | |
2605 | /* write() the buffer */ | |
a5262162 | 2606 | STDCHAR *buf = b->buf; |
33af2bc7 | 2607 | STDCHAR *p = buf; |
3789aae2 | 2608 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
2609 | while (p < b->ptr) |
2610 | { | |
4b803d04 | 2611 | SSize_t count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b NIS |
2612 | if (count > 0) |
2613 | { | |
2614 | p += count; | |
2615 | } | |
3789aae2 | 2616 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b NIS |
2617 | { |
2618 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2619 | code = -1; | |
2620 | break; | |
2621 | } | |
2622 | } | |
33af2bc7 | 2623 | b->posn += (p - buf); |
9e353e3b NIS |
2624 | } |
2625 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 2626 | { |
33af2bc7 | 2627 | STDCHAR *buf = PerlIO_get_base(f); |
9e353e3b | 2628 | /* Note position change */ |
33af2bc7 | 2629 | b->posn += (b->ptr - buf); |
9e353e3b NIS |
2630 | if (b->ptr < b->end) |
2631 | { | |
2632 | /* We did not consume all of it */ | |
2633 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
2634 | { | |
2635 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2636 | } | |
2637 | } | |
6f9d8c32 | 2638 | } |
9e353e3b NIS |
2639 | b->ptr = b->end = b->buf; |
2640 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
88b61e10 | 2641 | /* FIXME: Is this right for read case ? */ |
9e353e3b NIS |
2642 | if (PerlIO_flush(PerlIONext(f)) != 0) |
2643 | code = -1; | |
2644 | return code; | |
6f9d8c32 NIS |
2645 | } |
2646 | ||
06da4f11 NIS |
2647 | IV |
2648 | PerlIOBuf_fill(PerlIO *f) | |
2649 | { | |
2650 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
88b61e10 | 2651 | PerlIO *n = PerlIONext(f); |
06da4f11 | 2652 | SSize_t avail; |
88b61e10 NIS |
2653 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
2654 | pre-read data in stdio buffer to be discarded | |
2655 | but this is too simplistic - as it skips _our_ hosekeeping | |
2656 | and breaks tell tests. | |
2657 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2658 | { | |
2659 | } | |
2660 | */ | |
06da4f11 NIS |
2661 | if (PerlIO_flush(f) != 0) |
2662 | return -1; | |
a9c883f6 NIS |
2663 | if (PerlIOBase(f)->flags & PERLIO_F_TTY) |
2664 | PerlIOBase_flush_linebuf(); | |
88b61e10 | 2665 | |
a5262162 NIS |
2666 | if (!b->buf) |
2667 | PerlIO_get_base(f); /* allocate via vtable */ | |
2668 | ||
2669 | b->ptr = b->end = b->buf; | |
88b61e10 NIS |
2670 | if (PerlIO_fast_gets(n)) |
2671 | { | |
2672 | /* Layer below is also buffered | |
2673 | * We do _NOT_ want to call its ->Read() because that will loop | |
2674 | * till it gets what we asked for which may hang on a pipe etc. | |
2675 | * Instead take anything it has to hand, or ask it to fill _once_. | |
2676 | */ | |
2677 | avail = PerlIO_get_cnt(n); | |
2678 | if (avail <= 0) | |
2679 | { | |
2680 | avail = PerlIO_fill(n); | |
2681 | if (avail == 0) | |
2682 | avail = PerlIO_get_cnt(n); | |
2683 | else | |
2684 | { | |
2685 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
2686 | avail = 0; | |
2687 | } | |
2688 | } | |
2689 | if (avail > 0) | |
2690 | { | |
2691 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
2692 | SSize_t cnt = avail; | |
2693 | if (avail > b->bufsiz) | |
2694 | avail = b->bufsiz; | |
2695 | Copy(ptr,b->buf,avail,STDCHAR); | |
2696 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); | |
2697 | } | |
2698 | } | |
2699 | else | |
2700 | { | |
2701 | avail = PerlIO_read(n,b->ptr,b->bufsiz); | |
2702 | } | |
06da4f11 NIS |
2703 | if (avail <= 0) |
2704 | { | |
2705 | if (avail == 0) | |
2706 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
2707 | else | |
2708 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2709 | return -1; | |
2710 | } | |
a5262162 | 2711 | b->end = b->buf+avail; |
06da4f11 NIS |
2712 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2713 | return 0; | |
2714 | } | |
2715 | ||
6f9d8c32 | 2716 | SSize_t |
9e353e3b | 2717 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 2718 | { |
99efab12 | 2719 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
2720 | if (f) |
2721 | { | |
9e353e3b | 2722 | if (!b->ptr) |
06da4f11 | 2723 | PerlIO_get_base(f); |
f6c77cf1 | 2724 | return PerlIOBase_read(f,vbuf,count); |
6f9d8c32 NIS |
2725 | } |
2726 | return 0; | |
2727 | } | |
2728 | ||
9e353e3b NIS |
2729 | SSize_t |
2730 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2731 | { |
9e353e3b NIS |
2732 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2733 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2734 | SSize_t unread = 0; | |
2735 | SSize_t avail; | |
9e353e3b NIS |
2736 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2737 | PerlIO_flush(f); | |
06da4f11 NIS |
2738 | if (!b->buf) |
2739 | PerlIO_get_base(f); | |
9e353e3b NIS |
2740 | if (b->buf) |
2741 | { | |
2742 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2743 | { | |
2744 | avail = (b->ptr - b->buf); | |
9e353e3b NIS |
2745 | } |
2746 | else | |
2747 | { | |
2748 | avail = b->bufsiz; | |
5e2ab84b NIS |
2749 | b->end = b->buf + avail; |
2750 | b->ptr = b->end; | |
2751 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2752 | b->posn -= b->bufsiz; | |
9e353e3b | 2753 | } |
5e2ab84b NIS |
2754 | if (avail > (SSize_t) count) |
2755 | avail = count; | |
9e353e3b NIS |
2756 | if (avail > 0) |
2757 | { | |
5e2ab84b | 2758 | b->ptr -= avail; |
9e353e3b NIS |
2759 | buf -= avail; |
2760 | if (buf != b->ptr) | |
2761 | { | |
88b61e10 | 2762 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2763 | } |
2764 | count -= avail; | |
2765 | unread += avail; | |
2766 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
2767 | } | |
2768 | } | |
2769 | return unread; | |
760ac839 LW |
2770 | } |
2771 | ||
9e353e3b NIS |
2772 | SSize_t |
2773 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2774 | { |
9e353e3b NIS |
2775 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2776 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
2777 | Size_t written = 0; | |
2778 | if (!b->buf) | |
06da4f11 | 2779 | PerlIO_get_base(f); |
9e353e3b NIS |
2780 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2781 | return 0; | |
2782 | while (count > 0) | |
2783 | { | |
2784 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
2785 | if ((SSize_t) count < avail) | |
2786 | avail = count; | |
2787 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2788 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2789 | { | |
2790 | while (avail > 0) | |
2791 | { | |
2792 | int ch = *buf++; | |
2793 | *(b->ptr)++ = ch; | |
2794 | count--; | |
2795 | avail--; | |
2796 | written++; | |
2797 | if (ch == '\n') | |
2798 | { | |
2799 | PerlIO_flush(f); | |
2800 | break; | |
2801 | } | |
2802 | } | |
2803 | } | |
2804 | else | |
2805 | { | |
2806 | if (avail) | |
2807 | { | |
88b61e10 | 2808 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2809 | count -= avail; |
2810 | buf += avail; | |
2811 | written += avail; | |
2812 | b->ptr += avail; | |
2813 | } | |
2814 | } | |
2815 | if (b->ptr >= (b->buf + b->bufsiz)) | |
2816 | PerlIO_flush(f); | |
2817 | } | |
f5b9d040 NIS |
2818 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2819 | PerlIO_flush(f); | |
9e353e3b NIS |
2820 | return written; |
2821 | } | |
2822 | ||
2823 | IV | |
2824 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
2825 | { | |
5e2ab84b NIS |
2826 | IV code; |
2827 | if ((code = PerlIO_flush(f)) == 0) | |
9e353e3b | 2828 | { |
5e2ab84b | 2829 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
9e353e3b NIS |
2830 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2831 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
2832 | if (code == 0) | |
2833 | { | |
2834 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2835 | } | |
2836 | } | |
2837 | return code; | |
2838 | } | |
2839 | ||
2840 | Off_t | |
2841 | PerlIOBuf_tell(PerlIO *f) | |
2842 | { | |
2843 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2844 | Off_t posn = b->posn; | |
2845 | if (b->buf) | |
2846 | posn += (b->ptr - b->buf); | |
2847 | return posn; | |
2848 | } | |
2849 | ||
2850 | IV | |
2851 | PerlIOBuf_close(PerlIO *f) | |
2852 | { | |
2853 | IV code = PerlIOBase_close(f); | |
2854 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2855 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 2856 | { |
5f1a76d0 | 2857 | PerlMemShared_free(b->buf); |
6f9d8c32 | 2858 | } |
9e353e3b NIS |
2859 | b->buf = NULL; |
2860 | b->ptr = b->end = b->buf; | |
2861 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2862 | return code; | |
760ac839 LW |
2863 | } |
2864 | ||
9e353e3b NIS |
2865 | STDCHAR * |
2866 | PerlIOBuf_get_ptr(PerlIO *f) | |
2867 | { | |
2868 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2869 | if (!b->buf) | |
06da4f11 | 2870 | PerlIO_get_base(f); |
9e353e3b NIS |
2871 | return b->ptr; |
2872 | } | |
2873 | ||
05d1247b | 2874 | SSize_t |
9e353e3b NIS |
2875 | PerlIOBuf_get_cnt(PerlIO *f) |
2876 | { | |
2877 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2878 | if (!b->buf) | |
06da4f11 | 2879 | PerlIO_get_base(f); |
9e353e3b NIS |
2880 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2881 | return (b->end - b->ptr); | |
2882 | return 0; | |
2883 | } | |
2884 | ||
2885 | STDCHAR * | |
2886 | PerlIOBuf_get_base(PerlIO *f) | |
2887 | { | |
2888 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2889 | if (!b->buf) | |
06da4f11 NIS |
2890 | { |
2891 | if (!b->bufsiz) | |
2892 | b->bufsiz = 4096; | |
5f1a76d0 | 2893 | b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR)); |
06da4f11 NIS |
2894 | if (!b->buf) |
2895 | { | |
2896 | b->buf = (STDCHAR *)&b->oneword; | |
2897 | b->bufsiz = sizeof(b->oneword); | |
2898 | } | |
2899 | b->ptr = b->buf; | |
2900 | b->end = b->ptr; | |
2901 | } | |
9e353e3b NIS |
2902 | return b->buf; |
2903 | } | |
2904 | ||
2905 | Size_t | |
2906 | PerlIOBuf_bufsiz(PerlIO *f) | |
2907 | { | |
2908 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2909 | if (!b->buf) | |
06da4f11 | 2910 | PerlIO_get_base(f); |
9e353e3b NIS |
2911 | return (b->end - b->buf); |
2912 | } | |
2913 | ||
2914 | void | |
05d1247b | 2915 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
2916 | { |
2917 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2918 | if (!b->buf) | |
06da4f11 | 2919 | PerlIO_get_base(f); |
9e353e3b NIS |
2920 | b->ptr = ptr; |
2921 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 2922 | { |
9e353e3b NIS |
2923 | dTHX; |
2924 | assert(PerlIO_get_cnt(f) == cnt); | |
2925 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 2926 | } |
9e353e3b | 2927 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
2928 | } |
2929 | ||
9e353e3b NIS |
2930 | PerlIO_funcs PerlIO_perlio = { |
2931 | "perlio", | |
2932 | sizeof(PerlIOBuf), | |
f5b9d040 | 2933 | PERLIO_K_BUFFERED, |
5e2ab84b | 2934 | PerlIOBuf_pushed, |
06da4f11 | 2935 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
2936 | PerlIOBuf_open, |
2937 | NULL, | |
2938 | PerlIOBase_fileno, | |
9e353e3b NIS |
2939 | PerlIOBuf_read, |
2940 | PerlIOBuf_unread, | |
2941 | PerlIOBuf_write, | |
2942 | PerlIOBuf_seek, | |
2943 | PerlIOBuf_tell, | |
2944 | PerlIOBuf_close, | |
2945 | PerlIOBuf_flush, | |
06da4f11 | 2946 | PerlIOBuf_fill, |
9e353e3b NIS |
2947 | PerlIOBase_eof, |
2948 | PerlIOBase_error, | |
2949 | PerlIOBase_clearerr, | |
f6c77cf1 | 2950 | PerlIOBase_setlinebuf, |
9e353e3b NIS |
2951 | PerlIOBuf_get_base, |
2952 | PerlIOBuf_bufsiz, | |
2953 | PerlIOBuf_get_ptr, | |
2954 | PerlIOBuf_get_cnt, | |
2955 | PerlIOBuf_set_ptrcnt, | |
2956 | }; | |
2957 | ||
66ecd56b | 2958 | /*--------------------------------------------------------------------------------------*/ |
5e2ab84b NIS |
2959 | /* Temp layer to hold unread chars when cannot do it any other way */ |
2960 | ||
2961 | IV | |
2962 | PerlIOPending_fill(PerlIO *f) | |
2963 | { | |
2964 | /* Should never happen */ | |
2965 | PerlIO_flush(f); | |
2966 | return 0; | |
2967 | } | |
2968 | ||
2969 | IV | |
2970 | PerlIOPending_close(PerlIO *f) | |
2971 | { | |
2972 | /* A tad tricky - flush pops us, then we close new top */ | |
2973 | PerlIO_flush(f); | |
2974 | return PerlIO_close(f); | |
2975 | } | |
2976 | ||
2977 | IV | |
2978 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) | |
2979 | { | |
2980 | /* A tad tricky - flush pops us, then we seek new top */ | |
2981 | PerlIO_flush(f); | |
2982 | return PerlIO_seek(f,offset,whence); | |
2983 | } | |
2984 | ||
2985 | ||
2986 | IV | |
2987 | PerlIOPending_flush(PerlIO *f) | |
2988 | { | |
a999f61b | 2989 | dTHX; |
5e2ab84b NIS |
2990 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2991 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
2992 | { | |
5f1a76d0 | 2993 | PerlMemShared_free(b->buf); |
5e2ab84b NIS |
2994 | b->buf = NULL; |
2995 | } | |
a999f61b | 2996 | PerlIO_pop(aTHX_ f); |
5e2ab84b NIS |
2997 | return 0; |
2998 | } | |
2999 | ||
3000 | void | |
3001 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
3002 | { | |
3003 | if (cnt <= 0) | |
3004 | { | |
3005 | PerlIO_flush(f); | |
3006 | } | |
3007 | else | |
3008 | { | |
3009 | PerlIOBuf_set_ptrcnt(f,ptr,cnt); | |
3010 | } | |
3011 | } | |
3012 | ||
3013 | IV | |
e3f3bf95 | 3014 | PerlIOPending_pushed(PerlIO *f,const char *mode,SV *arg) |
5e2ab84b | 3015 | { |
e3f3bf95 | 3016 | IV code = PerlIOBase_pushed(f,mode,arg); |
5e2ab84b NIS |
3017 | PerlIOl *l = PerlIOBase(f); |
3018 | /* Our PerlIO_fast_gets must match what we are pushed on, | |
3019 | or sv_gets() etc. get muddled when it changes mid-string | |
3020 | when we auto-pop. | |
3021 | */ | |
72e44f29 NIS |
3022 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) | |
3023 | (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8)); | |
5e2ab84b NIS |
3024 | return code; |
3025 | } | |
3026 | ||
3027 | SSize_t | |
3028 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) | |
3029 | { | |
3030 | SSize_t avail = PerlIO_get_cnt(f); | |
3031 | SSize_t got = 0; | |
3032 | if (count < avail) | |
3033 | avail = count; | |
3034 | if (avail > 0) | |
3035 | got = PerlIOBuf_read(f,vbuf,avail); | |
1f474064 NIS |
3036 | if (got >= 0 && got < count) |
3037 | { | |
3038 | SSize_t more = PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got); | |
3039 | if (more >= 0 || got == 0) | |
3040 | got += more; | |
3041 | } | |
5e2ab84b NIS |
3042 | return got; |
3043 | } | |
3044 | ||
5e2ab84b NIS |
3045 | PerlIO_funcs PerlIO_pending = { |
3046 | "pending", | |
3047 | sizeof(PerlIOBuf), | |
3048 | PERLIO_K_BUFFERED, | |
5e2ab84b NIS |
3049 | PerlIOPending_pushed, |
3050 | PerlIOBase_noop_ok, | |
e3f3bf95 NIS |
3051 | NULL, |
3052 | NULL, | |
3053 | PerlIOBase_fileno, | |
5e2ab84b NIS |
3054 | PerlIOPending_read, |
3055 | PerlIOBuf_unread, | |
3056 | PerlIOBuf_write, | |
3057 | PerlIOPending_seek, | |
3058 | PerlIOBuf_tell, | |
3059 | PerlIOPending_close, | |
3060 | PerlIOPending_flush, | |
3061 | PerlIOPending_fill, | |
3062 | PerlIOBase_eof, | |
3063 | PerlIOBase_error, | |
3064 | PerlIOBase_clearerr, | |
f6c77cf1 | 3065 | PerlIOBase_setlinebuf, |
5e2ab84b NIS |
3066 | PerlIOBuf_get_base, |
3067 | PerlIOBuf_bufsiz, | |
3068 | PerlIOBuf_get_ptr, | |
3069 | PerlIOBuf_get_cnt, | |
3070 | PerlIOPending_set_ptrcnt, | |
3071 | }; | |
3072 | ||
3073 | ||
3074 | ||
3075 | /*--------------------------------------------------------------------------------------*/ | |
99efab12 NIS |
3076 | /* crlf - translation |
3077 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries | |
60382766 | 3078 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 | 3079 | On write translate "\n" to CR,LF |
66ecd56b NIS |
3080 | */ |
3081 | ||
99efab12 NIS |
3082 | typedef struct |
3083 | { | |
3084 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
60382766 | 3085 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 NIS |
3086 | } PerlIOCrlf; |
3087 | ||
f5b9d040 | 3088 | IV |
e3f3bf95 | 3089 | PerlIOCrlf_pushed(PerlIO *f, const char *mode,SV *arg) |
f5b9d040 NIS |
3090 | { |
3091 | IV code; | |
3092 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
e3f3bf95 | 3093 | code = PerlIOBuf_pushed(f,mode,arg); |
5e2ab84b | 3094 | #if 0 |
4659c93f | 3095 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n", |
f5b9d040 | 3096 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
a4d3c1d3 | 3097 | PerlIOBase(f)->flags); |
5e2ab84b | 3098 | #endif |
f5b9d040 NIS |
3099 | return code; |
3100 | } | |
3101 | ||
3102 | ||
99efab12 NIS |
3103 | SSize_t |
3104 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3105 | { | |
60382766 | 3106 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 NIS |
3107 | if (c->nl) |
3108 | { | |
3109 | *(c->nl) = 0xd; | |
3110 | c->nl = NULL; | |
3111 | } | |
f5b9d040 NIS |
3112 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
3113 | return PerlIOBuf_unread(f,vbuf,count); | |
3114 | else | |
99efab12 | 3115 | { |
a4d3c1d3 | 3116 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
f5b9d040 NIS |
3117 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
3118 | SSize_t unread = 0; | |
3119 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3120 | PerlIO_flush(f); | |
3121 | if (!b->buf) | |
3122 | PerlIO_get_base(f); | |
3123 | if (b->buf) | |
99efab12 | 3124 | { |
f5b9d040 | 3125 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 | 3126 | { |
f5b9d040 NIS |
3127 | b->end = b->ptr = b->buf + b->bufsiz; |
3128 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
5e2ab84b | 3129 | b->posn -= b->bufsiz; |
f5b9d040 NIS |
3130 | } |
3131 | while (count > 0 && b->ptr > b->buf) | |
3132 | { | |
3133 | int ch = *--buf; | |
3134 | if (ch == '\n') | |
99efab12 | 3135 | { |
f5b9d040 NIS |
3136 | if (b->ptr - 2 >= b->buf) |
3137 | { | |
3138 | *--(b->ptr) = 0xa; | |
3139 | *--(b->ptr) = 0xd; | |
3140 | unread++; | |
3141 | count--; | |
3142 | } | |
3143 | else | |
3144 | { | |
3145 | buf++; | |
3146 | break; | |
3147 | } | |
99efab12 NIS |
3148 | } |
3149 | else | |
3150 | { | |
f5b9d040 NIS |
3151 | *--(b->ptr) = ch; |
3152 | unread++; | |
3153 | count--; | |
99efab12 NIS |
3154 | } |
3155 | } | |
99efab12 | 3156 | } |
f5b9d040 | 3157 | return unread; |
99efab12 | 3158 | } |
99efab12 NIS |
3159 | } |
3160 | ||
3161 | SSize_t | |
3162 | PerlIOCrlf_get_cnt(PerlIO *f) | |
3163 | { | |
3164 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3165 | if (!b->buf) | |
3166 | PerlIO_get_base(f); | |
3167 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
3168 | { | |
3169 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 3170 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 NIS |
3171 | { |
3172 | STDCHAR *nl = b->ptr; | |
60382766 | 3173 | scan: |
99efab12 NIS |
3174 | while (nl < b->end && *nl != 0xd) |
3175 | nl++; | |
3176 | if (nl < b->end && *nl == 0xd) | |
3177 | { | |
60382766 | 3178 | test: |
99efab12 NIS |
3179 | if (nl+1 < b->end) |
3180 | { | |
3181 | if (nl[1] == 0xa) | |
3182 | { | |
3183 | *nl = '\n'; | |
60382766 | 3184 | c->nl = nl; |
99efab12 | 3185 | } |
60382766 | 3186 | else |
99efab12 NIS |
3187 | { |
3188 | /* Not CR,LF but just CR */ | |
3189 | nl++; | |
60382766 | 3190 | goto scan; |
99efab12 NIS |
3191 | } |
3192 | } | |
3193 | else | |
3194 | { | |
60382766 | 3195 | /* Blast - found CR as last char in buffer */ |
99efab12 NIS |
3196 | if (b->ptr < nl) |
3197 | { | |
3198 | /* They may not care, defer work as long as possible */ | |
60382766 | 3199 | return (nl - b->ptr); |
99efab12 NIS |
3200 | } |
3201 | else | |
3202 | { | |
3203 | int code; | |
99efab12 NIS |
3204 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
3205 | b->buf++; /* Leave space an front of buffer */ | |
3206 | b->bufsiz--; /* Buffer is thus smaller */ | |
3207 | code = PerlIO_fill(f); /* Fetch some more */ | |
3208 | b->bufsiz++; /* Restore size for next time */ | |
3209 | b->buf--; /* Point at space */ | |
3210 | b->ptr = nl = b->buf; /* Which is what we hand off */ | |
3211 | b->posn--; /* Buffer starts here */ | |
3212 | *nl = 0xd; /* Fill in the CR */ | |
60382766 | 3213 | if (code == 0) |
99efab12 NIS |
3214 | goto test; /* fill() call worked */ |
3215 | /* CR at EOF - just fall through */ | |
3216 | } | |
3217 | } | |
60382766 NIS |
3218 | } |
3219 | } | |
99efab12 NIS |
3220 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
3221 | } | |
3222 | return 0; | |
3223 | } | |
3224 | ||
3225 | void | |
3226 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
3227 | { | |
3228 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3229 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 3230 | IV flags = PerlIOBase(f)->flags; |
99efab12 NIS |
3231 | if (!b->buf) |
3232 | PerlIO_get_base(f); | |
3233 | if (!ptr) | |
60382766 | 3234 | { |
63dbdb06 NIS |
3235 | if (c->nl) |
3236 | ptr = c->nl+1; | |
3237 | else | |
3238 | { | |
3239 | ptr = b->end; | |
f5b9d040 | 3240 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 NIS |
3241 | ptr--; |
3242 | } | |
3243 | ptr -= cnt; | |
60382766 NIS |
3244 | } |
3245 | else | |
3246 | { | |
63dbdb06 NIS |
3247 | /* Test code - delete when it works ... */ |
3248 | STDCHAR *chk; | |
3249 | if (c->nl) | |
3250 | chk = c->nl+1; | |
3251 | else | |
3252 | { | |
3253 | chk = b->end; | |
f5b9d040 | 3254 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 NIS |
3255 | chk--; |
3256 | } | |
3257 | chk -= cnt; | |
a4d3c1d3 | 3258 | |
63dbdb06 NIS |
3259 | if (ptr != chk) |
3260 | { | |
3261 | dTHX; | |
4659c93f | 3262 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d", |
a4d3c1d3 | 3263 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 | 3264 | } |
60382766 | 3265 | } |
99efab12 NIS |
3266 | if (c->nl) |
3267 | { | |
3268 | if (ptr > c->nl) | |
3269 | { | |
3270 | /* They have taken what we lied about */ | |
3271 | *(c->nl) = 0xd; | |
3272 | c->nl = NULL; | |
3273 | ptr++; | |
60382766 | 3274 | } |
99efab12 NIS |
3275 | } |
3276 | b->ptr = ptr; | |
3277 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3278 | } | |
3279 | ||
3280 | SSize_t | |
3281 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) | |
3282 | { | |
f5b9d040 NIS |
3283 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
3284 | return PerlIOBuf_write(f,vbuf,count); | |
3285 | else | |
99efab12 | 3286 | { |
a4d3c1d3 | 3287 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
f5b9d040 NIS |
3288 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
3289 | const STDCHAR *ebuf = buf+count; | |
3290 | if (!b->buf) | |
3291 | PerlIO_get_base(f); | |
3292 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
3293 | return 0; | |
3294 | while (buf < ebuf) | |
99efab12 | 3295 | { |
f5b9d040 NIS |
3296 | STDCHAR *eptr = b->buf+b->bufsiz; |
3297 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
3298 | while (buf < ebuf && b->ptr < eptr) | |
99efab12 | 3299 | { |
f5b9d040 | 3300 | if (*buf == '\n') |
60382766 | 3301 | { |
f5b9d040 | 3302 | if ((b->ptr + 2) > eptr) |
60382766 | 3303 | { |
f5b9d040 | 3304 | /* Not room for both */ |
60382766 NIS |
3305 | PerlIO_flush(f); |
3306 | break; | |
3307 | } | |
f5b9d040 NIS |
3308 | else |
3309 | { | |
3310 | *(b->ptr)++ = 0xd; /* CR */ | |
3311 | *(b->ptr)++ = 0xa; /* LF */ | |
3312 | buf++; | |
3313 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
3314 | { | |
3315 | PerlIO_flush(f); | |
3316 | break; | |
3317 | } | |
3318 | } | |
3319 | } | |
3320 | else | |
3321 | { | |
3322 | int ch = *buf++; | |
3323 | *(b->ptr)++ = ch; | |
3324 | } | |
3325 | if (b->ptr >= eptr) | |
3326 | { | |
3327 | PerlIO_flush(f); | |
3328 | break; | |
99efab12 | 3329 | } |
99efab12 NIS |
3330 | } |
3331 | } | |
f5b9d040 NIS |
3332 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
3333 | PerlIO_flush(f); | |
3334 | return (buf - (STDCHAR *) vbuf); | |
99efab12 | 3335 | } |
99efab12 NIS |
3336 | } |
3337 | ||
3338 | IV | |
3339 | PerlIOCrlf_flush(PerlIO *f) | |
3340 | { | |
3341 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
3342 | if (c->nl) | |
3343 | { | |
99efab12 | 3344 | *(c->nl) = 0xd; |
60382766 | 3345 | c->nl = NULL; |
99efab12 NIS |
3346 | } |
3347 | return PerlIOBuf_flush(f); | |
3348 | } | |
3349 | ||
66ecd56b NIS |
3350 | PerlIO_funcs PerlIO_crlf = { |
3351 | "crlf", | |
99efab12 | 3352 | sizeof(PerlIOCrlf), |
f5b9d040 | 3353 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
f5b9d040 | 3354 | PerlIOCrlf_pushed, |
99efab12 | 3355 | PerlIOBase_noop_ok, /* popped */ |
e3f3bf95 NIS |
3356 | PerlIOBuf_open, |
3357 | NULL, | |
3358 | PerlIOBase_fileno, | |
99efab12 NIS |
3359 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ |
3360 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ | |
3361 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
66ecd56b NIS |
3362 | PerlIOBuf_seek, |
3363 | PerlIOBuf_tell, | |
3364 | PerlIOBuf_close, | |
99efab12 | 3365 | PerlIOCrlf_flush, |
66ecd56b NIS |
3366 | PerlIOBuf_fill, |
3367 | PerlIOBase_eof, | |
3368 | PerlIOBase_error, | |
3369 | PerlIOBase_clearerr, | |
f6c77cf1 | 3370 | PerlIOBase_setlinebuf, |
66ecd56b NIS |
3371 | PerlIOBuf_get_base, |
3372 | PerlIOBuf_bufsiz, | |
3373 | PerlIOBuf_get_ptr, | |
99efab12 NIS |
3374 | PerlIOCrlf_get_cnt, |
3375 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
3376 | }; |
3377 | ||
06da4f11 NIS |
3378 | #ifdef HAS_MMAP |
3379 | /*--------------------------------------------------------------------------------------*/ | |
3380 | /* mmap as "buffer" layer */ | |
3381 | ||
3382 | typedef struct | |
3383 | { | |
3384 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 3385 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
3386 | Size_t len; /* mapped length */ |
3387 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
3388 | } PerlIOMmap; | |
3389 | ||
c3d7c7c9 NIS |
3390 | static size_t page_size = 0; |
3391 | ||
06da4f11 NIS |
3392 | IV |
3393 | PerlIOMmap_map(PerlIO *f) | |
3394 | { | |
68d873c6 | 3395 | dTHX; |
06da4f11 | 3396 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
06da4f11 NIS |
3397 | IV flags = PerlIOBase(f)->flags; |
3398 | IV code = 0; | |
3399 | if (m->len) | |
3400 | abort(); | |
3401 | if (flags & PERLIO_F_CANREAD) | |
3402 | { | |
3403 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3404 | int fd = PerlIO_fileno(f); | |
3405 | struct stat st; | |
3406 | code = fstat(fd,&st); | |
3407 | if (code == 0 && S_ISREG(st.st_mode)) | |
3408 | { | |
3409 | SSize_t len = st.st_size - b->posn; | |
3410 | if (len > 0) | |
3411 | { | |
c3d7c7c9 | 3412 | Off_t posn; |
68d873c6 JH |
3413 | if (!page_size) { |
3414 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
3415 | { | |
3416 | SETERRNO(0,SS$_NORMAL); | |
3417 | # ifdef _SC_PAGESIZE | |
3418 | page_size = sysconf(_SC_PAGESIZE); | |
3419 | # else | |
3420 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 3421 | # endif |
68d873c6 JH |
3422 | if ((long)page_size < 0) { |
3423 | if (errno) { | |
3424 | SV *error = ERRSV; | |
3425 | char *msg; | |
3426 | STRLEN n_a; | |
3427 | (void)SvUPGRADE(error, SVt_PV); | |
3428 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 3429 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
3430 | } |
3431 | else | |
14aaf8e8 | 3432 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
3433 | } |
3434 | } | |
3435 | #else | |
3436 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 3437 | page_size = getpagesize(); |
68d873c6 JH |
3438 | # else |
3439 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
3440 | page_size = PAGESIZE; /* compiletime, bad */ | |
3441 | # endif | |
3442 | # endif | |
3443 | #endif | |
3444 | if ((IV)page_size <= 0) | |
14aaf8e8 | 3445 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 3446 | } |
c3d7c7c9 NIS |
3447 | if (b->posn < 0) |
3448 | { | |
3449 | /* This is a hack - should never happen - open should have set it ! */ | |
3450 | b->posn = PerlIO_tell(PerlIONext(f)); | |
3451 | } | |
3452 | posn = (b->posn / page_size) * page_size; | |
3453 | len = st.st_size - posn; | |
a5262162 | 3454 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); |
c3d7c7c9 | 3455 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 | 3456 | { |
a5262162 | 3457 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 | 3458 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 3459 | #endif |
a5262162 NIS |
3460 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
3461 | madvise(m->mptr, len, MADV_WILLNEED); | |
3462 | #endif | |
c3d7c7c9 NIS |
3463 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
3464 | b->end = ((STDCHAR *)m->mptr) + len; | |
3465 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
3466 | b->ptr = b->buf; | |
3467 | m->len = len; | |
06da4f11 NIS |
3468 | } |
3469 | else | |
3470 | { | |
3471 | b->buf = NULL; | |
3472 | } | |
3473 | } | |
3474 | else | |
3475 | { | |
3476 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
3477 | b->buf = NULL; | |
3478 | b->ptr = b->end = b->ptr; | |
3479 | code = -1; | |
3480 | } | |
3481 | } | |
3482 | } | |
3483 | return code; | |
3484 | } | |
3485 | ||
3486 | IV | |
3487 | PerlIOMmap_unmap(PerlIO *f) | |
3488 | { | |
3489 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3490 | PerlIOBuf *b = &m->base; | |
3491 | IV code = 0; | |
3492 | if (m->len) | |
3493 | { | |
3494 | if (b->buf) | |
3495 | { | |
c3d7c7c9 NIS |
3496 | code = munmap(m->mptr, m->len); |
3497 | b->buf = NULL; | |
3498 | m->len = 0; | |
3499 | m->mptr = NULL; | |
06da4f11 NIS |
3500 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
3501 | code = -1; | |
06da4f11 NIS |
3502 | } |
3503 | b->ptr = b->end = b->buf; | |
3504 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
3505 | } | |
3506 | return code; | |
3507 | } | |
3508 | ||
3509 | STDCHAR * | |
3510 | PerlIOMmap_get_base(PerlIO *f) | |
3511 | { | |
3512 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3513 | PerlIOBuf *b = &m->base; | |
3514 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
3515 | { | |
3516 | /* Already have a readbuffer in progress */ | |
3517 | return b->buf; | |
3518 | } | |
3519 | if (b->buf) | |
3520 | { | |
3521 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
3522 | m->bbuf = b->buf; /* save it in case we need it again */ | |
3523 | b->buf = NULL; /* Clear to trigger below */ | |
3524 | } | |
3525 | if (!b->buf) | |
3526 | { | |
3527 | PerlIOMmap_map(f); /* Try and map it */ | |
3528 | if (!b->buf) | |
3529 | { | |
3530 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
3531 | b->buf = m->bbuf; | |
3532 | } | |
3533 | } | |
3534 | b->ptr = b->end = b->buf; | |
3535 | if (b->buf) | |
3536 | return b->buf; | |
3537 | return PerlIOBuf_get_base(f); | |
3538 | } | |
3539 | ||
3540 | SSize_t | |
3541 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3542 | { | |
3543 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3544 | PerlIOBuf *b = &m->base; | |
3545 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3546 | PerlIO_flush(f); | |
3547 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
3548 | { | |
3549 | b->ptr -= count; | |
3550 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
3551 | return count; | |
3552 | } | |
3553 | if (m->len) | |
3554 | { | |
4a4a6116 | 3555 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 3556 | PerlIO_flush(f); |
c3d7c7c9 NIS |
3557 | /* If flush took the "buffer" see if we have one from before */ |
3558 | if (!b->buf && m->bbuf) | |
3559 | b->buf = m->bbuf; | |
3560 | if (!b->buf) | |
3561 | { | |
3562 | PerlIOBuf_get_base(f); | |
3563 | m->bbuf = b->buf; | |
3564 | } | |
06da4f11 | 3565 | } |
5e2ab84b | 3566 | return PerlIOBuf_unread(f,vbuf,count); |
06da4f11 NIS |
3567 | } |
3568 | ||
3569 | SSize_t | |
3570 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
3571 | { | |
3572 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3573 | PerlIOBuf *b = &m->base; | |
3574 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
3575 | { | |
3576 | /* No, or wrong sort of, buffer */ | |
3577 | if (m->len) | |
3578 | { | |
3579 | if (PerlIOMmap_unmap(f) != 0) | |
3580 | return 0; | |
3581 | } | |
3582 | /* If unmap took the "buffer" see if we have one from before */ | |
3583 | if (!b->buf && m->bbuf) | |
3584 | b->buf = m->bbuf; | |
3585 | if (!b->buf) | |
3586 | { | |
3587 | PerlIOBuf_get_base(f); | |
3588 | m->bbuf = b->buf; | |
3589 | } | |
3590 | } | |
3591 | return PerlIOBuf_write(f,vbuf,count); | |
3592 | } | |
3593 | ||
3594 | IV | |
3595 | PerlIOMmap_flush(PerlIO *f) | |
3596 | { | |
3597 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3598 | PerlIOBuf *b = &m->base; | |
3599 | IV code = PerlIOBuf_flush(f); | |
3600 | /* Now we are "synced" at PerlIOBuf level */ | |
3601 | if (b->buf) | |
3602 | { | |
3603 | if (m->len) | |
3604 | { | |
3605 | /* Unmap the buffer */ | |
3606 | if (PerlIOMmap_unmap(f) != 0) | |
3607 | code = -1; | |
3608 | } | |
3609 | else | |
3610 | { | |
3611 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
3612 | * remember it in case we need one later | |
3613 | */ | |
3614 | m->bbuf = b->buf; | |
3615 | } | |
3616 | } | |
06da4f11 NIS |
3617 | return code; |
3618 | } | |
3619 | ||
3620 | IV | |
3621 | PerlIOMmap_fill(PerlIO *f) | |
3622 | { | |
3623 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3624 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
3625 | if (code == 0 && !b->buf) |
3626 | { | |
3627 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
3628 | } |
3629 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
3630 | { | |
3631 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
3632 | } |
3633 | return code; | |
3634 | } | |
3635 | ||
3636 | IV | |
3637 | PerlIOMmap_close(PerlIO *f) | |
3638 | { | |
3639 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3640 | PerlIOBuf *b = &m->base; | |
3641 | IV code = PerlIO_flush(f); | |
3642 | if (m->bbuf) | |
3643 | { | |
3644 | b->buf = m->bbuf; | |
3645 | m->bbuf = NULL; | |
3646 | b->ptr = b->end = b->buf; | |
3647 | } | |
3648 | if (PerlIOBuf_close(f) != 0) | |
3649 | code = -1; | |
06da4f11 NIS |
3650 | return code; |
3651 | } | |
3652 | ||
3653 | ||
3654 | PerlIO_funcs PerlIO_mmap = { | |
3655 | "mmap", | |
3656 | sizeof(PerlIOMmap), | |
f5b9d040 | 3657 | PERLIO_K_BUFFERED, |
5e2ab84b | 3658 | PerlIOBuf_pushed, |
06da4f11 | 3659 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
3660 | PerlIOBuf_open, |
3661 | NULL, | |
3662 | PerlIOBase_fileno, | |
06da4f11 NIS |
3663 | PerlIOBuf_read, |
3664 | PerlIOMmap_unread, | |
3665 | PerlIOMmap_write, | |
3666 | PerlIOBuf_seek, | |
3667 | PerlIOBuf_tell, | |
3668 | PerlIOBuf_close, | |
3669 | PerlIOMmap_flush, | |
3670 | PerlIOMmap_fill, | |
3671 | PerlIOBase_eof, | |
3672 | PerlIOBase_error, | |
3673 | PerlIOBase_clearerr, | |
f6c77cf1 | 3674 | PerlIOBase_setlinebuf, |
06da4f11 NIS |
3675 | PerlIOMmap_get_base, |
3676 | PerlIOBuf_bufsiz, | |
3677 | PerlIOBuf_get_ptr, | |
3678 | PerlIOBuf_get_cnt, | |
3679 | PerlIOBuf_set_ptrcnt, | |
3680 | }; | |
3681 | ||
3682 | #endif /* HAS_MMAP */ | |
3683 | ||
9e353e3b NIS |
3684 | void |
3685 | PerlIO_init(void) | |
760ac839 | 3686 | { |
9a6404c5 | 3687 | dTHX; |
43c11ae3 | 3688 | #ifndef WIN32 |
9a6404c5 | 3689 | call_atexit(PerlIO_cleanup_layers, NULL); |
43c11ae3 | 3690 | #endif |
9e353e3b | 3691 | if (!_perlio) |
6f9d8c32 | 3692 | { |
be696b0a | 3693 | #ifndef WIN32 |
9e353e3b | 3694 | atexit(&PerlIO_cleanup); |
be696b0a | 3695 | #endif |
6f9d8c32 | 3696 | } |
760ac839 LW |
3697 | } |
3698 | ||
9e353e3b NIS |
3699 | #undef PerlIO_stdin |
3700 | PerlIO * | |
3701 | PerlIO_stdin(void) | |
3702 | { | |
3703 | if (!_perlio) | |
1141d9f8 NIS |
3704 | { |
3705 | dTHX; | |
3706 | PerlIO_stdstreams(aTHX); | |
3707 | } | |
05d1247b | 3708 | return &_perlio[1]; |
9e353e3b NIS |
3709 | } |
3710 | ||
3711 | #undef PerlIO_stdout | |
3712 | PerlIO * | |
3713 | PerlIO_stdout(void) | |
3714 | { | |
3715 | if (!_perlio) | |
1141d9f8 NIS |
3716 | { |
3717 | dTHX; | |
3718 | PerlIO_stdstreams(aTHX); | |
3719 | } | |
05d1247b | 3720 | return &_perlio[2]; |
9e353e3b NIS |
3721 | } |
3722 | ||
3723 | #undef PerlIO_stderr | |
3724 | PerlIO * | |
3725 | PerlIO_stderr(void) | |
3726 | { | |
3727 | if (!_perlio) | |
1141d9f8 NIS |
3728 | { |
3729 | dTHX; | |
3730 | PerlIO_stdstreams(aTHX); | |
3731 | } | |
05d1247b | 3732 | return &_perlio[3]; |
9e353e3b NIS |
3733 | } |
3734 | ||
3735 | /*--------------------------------------------------------------------------------------*/ | |
3736 | ||
3737 | #undef PerlIO_getname | |
3738 | char * | |
3739 | PerlIO_getname(PerlIO *f, char *buf) | |
3740 | { | |
3741 | dTHX; | |
a15cef0c CB |
3742 | char *name = NULL; |
3743 | #ifdef VMS | |
3744 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
3745 | if (stdio) name = fgetname(stdio, buf); | |
3746 | #else | |
9e353e3b | 3747 | Perl_croak(aTHX_ "Don't know how to get file name"); |
a15cef0c CB |
3748 | #endif |
3749 | return name; | |
9e353e3b NIS |
3750 | } |
3751 | ||
3752 | ||
3753 | /*--------------------------------------------------------------------------------------*/ | |
3754 | /* Functions which can be called on any kind of PerlIO implemented | |
3755 | in terms of above | |
3756 | */ | |
3757 | ||
3758 | #undef PerlIO_getc | |
6f9d8c32 | 3759 | int |
9e353e3b | 3760 | PerlIO_getc(PerlIO *f) |
760ac839 | 3761 | { |
313ca112 NIS |
3762 | STDCHAR buf[1]; |
3763 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 3764 | if (count == 1) |
313ca112 NIS |
3765 | { |
3766 | return (unsigned char) buf[0]; | |
3767 | } | |
3768 | return EOF; | |
3769 | } | |
3770 | ||
3771 | #undef PerlIO_ungetc | |
3772 | int | |
3773 | PerlIO_ungetc(PerlIO *f, int ch) | |
3774 | { | |
3775 | if (ch != EOF) | |
3776 | { | |
3777 | STDCHAR buf = ch; | |
3778 | if (PerlIO_unread(f,&buf,1) == 1) | |
3779 | return ch; | |
3780 | } | |
3781 | return EOF; | |
760ac839 LW |
3782 | } |
3783 | ||
9e353e3b NIS |
3784 | #undef PerlIO_putc |
3785 | int | |
3786 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 3787 | { |
9e353e3b NIS |
3788 | STDCHAR buf = ch; |
3789 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
3790 | } |
3791 | ||
9e353e3b | 3792 | #undef PerlIO_puts |
760ac839 | 3793 | int |
9e353e3b | 3794 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 3795 | { |
9e353e3b NIS |
3796 | STRLEN len = strlen(s); |
3797 | return PerlIO_write(f,s,len); | |
760ac839 LW |
3798 | } |
3799 | ||
3800 | #undef PerlIO_rewind | |
3801 | void | |
c78749f2 | 3802 | PerlIO_rewind(PerlIO *f) |
760ac839 | 3803 | { |
6f9d8c32 | 3804 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 3805 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
3806 | } |
3807 | ||
3808 | #undef PerlIO_vprintf | |
3809 | int | |
3810 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
3811 | { | |
3812 | dTHX; | |
bb9950b7 | 3813 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
3814 | char *s; |
3815 | STRLEN len; | |
933fb4e4 | 3816 | SSize_t wrote; |
2cc61e15 DD |
3817 | #ifdef NEED_VA_COPY |
3818 | va_list apc; | |
3819 | Perl_va_copy(ap, apc); | |
3820 | sv_vcatpvf(sv, fmt, &apc); | |
3821 | #else | |
6f9d8c32 | 3822 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 3823 | #endif |
6f9d8c32 | 3824 | s = SvPV(sv,len); |
933fb4e4 BS |
3825 | wrote = PerlIO_write(f,s,len); |
3826 | SvREFCNT_dec(sv); | |
3827 | return wrote; | |
760ac839 LW |
3828 | } |
3829 | ||
3830 | #undef PerlIO_printf | |
6f9d8c32 | 3831 | int |
760ac839 | 3832 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
3833 | { |
3834 | va_list ap; | |
3835 | int result; | |
760ac839 | 3836 | va_start(ap,fmt); |
6f9d8c32 | 3837 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
3838 | va_end(ap); |
3839 | return result; | |
3840 | } | |
3841 | ||
3842 | #undef PerlIO_stdoutf | |
6f9d8c32 | 3843 | int |
760ac839 | 3844 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
3845 | { |
3846 | va_list ap; | |
3847 | int result; | |
760ac839 | 3848 | va_start(ap,fmt); |
760ac839 LW |
3849 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
3850 | va_end(ap); | |
3851 | return result; | |
3852 | } | |
3853 | ||
3854 | #undef PerlIO_tmpfile | |
3855 | PerlIO * | |
c78749f2 | 3856 | PerlIO_tmpfile(void) |
760ac839 | 3857 | { |
b1ef6e3b | 3858 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 | 3859 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
adb71456 | 3860 | dTHX; |
83b075c3 | 3861 | PerlIO *f = NULL; |
eaf8b698 | 3862 | FILE *stdio = PerlSIO_tmpfile(); |
83b075c3 NIS |
3863 | if (stdio) |
3864 | { | |
e3f3bf95 | 3865 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"w+",Nullsv),PerlIOStdio); |
83b075c3 NIS |
3866 | s->stdio = stdio; |
3867 | } | |
3868 | return f; | |
3869 | #else | |
3870 | dTHX; | |
6f9d8c32 NIS |
3871 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
3872 | int fd = mkstemp(SvPVX(sv)); | |
3873 | PerlIO *f = NULL; | |
3874 | if (fd >= 0) | |
3875 | { | |
b1ef6e3b | 3876 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
3877 | if (f) |
3878 | { | |
9e353e3b | 3879 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 3880 | } |
00b02797 | 3881 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
3882 | SvREFCNT_dec(sv); |
3883 | } | |
3884 | return f; | |
83b075c3 | 3885 | #endif |
760ac839 LW |
3886 | } |
3887 | ||
6f9d8c32 NIS |
3888 | #undef HAS_FSETPOS |
3889 | #undef HAS_FGETPOS | |
3890 | ||
760ac839 LW |
3891 | #endif /* USE_SFIO */ |
3892 | #endif /* PERLIO_IS_STDIO */ | |
3893 | ||
9e353e3b NIS |
3894 | /*======================================================================================*/ |
3895 | /* Now some functions in terms of above which may be needed even if | |
3896 | we are not in true PerlIO mode | |
3897 | */ | |
3898 | ||
760ac839 LW |
3899 | #ifndef HAS_FSETPOS |
3900 | #undef PerlIO_setpos | |
3901 | int | |
766a733e | 3902 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 3903 | { |
766a733e NIS |
3904 | dTHX; |
3905 | if (SvOK(pos)) | |
3906 | { | |
3907 | STRLEN len; | |
3908 | Off_t *posn = (Off_t *) SvPV(pos,len); | |
3909 | if (f && len == sizeof(Off_t)) | |
3910 | return PerlIO_seek(f,*posn,SEEK_SET); | |
3911 | } | |
ba412a5d | 3912 | SETERRNO(EINVAL,SS$_IVCHAN); |
766a733e | 3913 | return -1; |
760ac839 | 3914 | } |
c411622e | 3915 | #else |
c411622e | 3916 | #undef PerlIO_setpos |
3917 | int | |
766a733e | 3918 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 3919 | { |
766a733e NIS |
3920 | dTHX; |
3921 | if (SvOK(pos)) | |
3922 | { | |
3923 | STRLEN len; | |
3924 | Fpos_t *fpos = (Fpos_t *) SvPV(pos,len); | |
3925 | if (f && len == sizeof(Fpos_t)) | |
3926 | { | |
2d4389e4 | 3927 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3928 | return fsetpos64(f, fpos); |
d9b3e12d | 3929 | #else |
766a733e | 3930 | return fsetpos(f, fpos); |
d9b3e12d | 3931 | #endif |
766a733e NIS |
3932 | } |
3933 | } | |
ba412a5d | 3934 | SETERRNO(EINVAL,SS$_IVCHAN); |
766a733e | 3935 | return -1; |
c411622e | 3936 | } |
3937 | #endif | |
760ac839 LW |
3938 | |
3939 | #ifndef HAS_FGETPOS | |
3940 | #undef PerlIO_getpos | |
3941 | int | |
766a733e | 3942 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 3943 | { |
766a733e NIS |
3944 | dTHX; |
3945 | Off_t posn = PerlIO_tell(f); | |
3946 | sv_setpvn(pos,(char *)&posn,sizeof(posn)); | |
3947 | return (posn == (Off_t)-1) ? -1 : 0; | |
760ac839 | 3948 | } |
c411622e | 3949 | #else |
c411622e | 3950 | #undef PerlIO_getpos |
3951 | int | |
766a733e | 3952 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 3953 | { |
766a733e NIS |
3954 | dTHX; |
3955 | Fpos_t fpos; | |
3956 | int code; | |
2d4389e4 | 3957 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3958 | code = fgetpos64(f, &fpos); |
d9b3e12d | 3959 | #else |
766a733e | 3960 | code = fgetpos(f, &fpos); |
d9b3e12d | 3961 | #endif |
766a733e NIS |
3962 | sv_setpvn(pos,(char *)&fpos,sizeof(fpos)); |
3963 | return code; | |
c411622e | 3964 | } |
3965 | #endif | |
760ac839 LW |
3966 | |
3967 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
3968 | ||
3969 | int | |
c78749f2 | 3970 | vprintf(char *pat, char *args) |
662a7e3f CS |
3971 | { |
3972 | _doprnt(pat, args, stdout); | |
3973 | return 0; /* wrong, but perl doesn't use the return value */ | |
3974 | } | |
3975 | ||
3976 | int | |
c78749f2 | 3977 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
3978 | { |
3979 | _doprnt(pat, args, fd); | |
3980 | return 0; /* wrong, but perl doesn't use the return value */ | |
3981 | } | |
3982 | ||
3983 | #endif | |
3984 | ||
3985 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 3986 | int |
8ac85365 | 3987 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
3988 | { |
3989 | int val = vsprintf(s, fmt, ap); | |
3990 | if (n >= 0) | |
3991 | { | |
8c86a920 | 3992 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 3993 | { |
bf49b057 | 3994 | dTHX; |
fb4a9925 JH |
3995 | (void)PerlIO_puts(Perl_error_log, |
3996 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 3997 | my_exit(1); |
760ac839 LW |
3998 | } |
3999 | } | |
4000 | return val; | |
4001 | } | |
4002 | #endif | |
4003 | ||
4004 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 4005 | int |
760ac839 | 4006 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
4007 | { |
4008 | va_list ap; | |
4009 | int result; | |
760ac839 | 4010 | va_start(ap,fmt); |
760ac839 LW |
4011 | result = PerlIO_vsprintf(s, n, fmt, ap); |
4012 | va_end(ap); | |
4013 | return result; | |
4014 | } | |
4015 | #endif | |
4016 | ||
c5be433b | 4017 | |
7bcba3d4 NIS |
4018 | |
4019 | ||
4020 | ||
e06a3afb | 4021 |