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 | ||
10 | #define VOIDUSED 1 | |
12ae5dfc JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
88b61e10 | 23 | * which are not #defined in perlio.h. |
6f9d8c32 | 24 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
25 | */ |
26 | ||
27 | #include "EXTERN.h" | |
864dbfa3 | 28 | #define PERL_IN_PERLIO_C |
760ac839 LW |
29 | #include "perl.h" |
30 | ||
5f1a76d0 NIS |
31 | #undef PerlMemShared_calloc |
32 | #define PerlMemShared_calloc(x,y) calloc(x,y) | |
33 | #undef PerlMemShared_free | |
34 | #define PerlMemShared_free(x) free(x) | |
35 | ||
60382766 | 36 | int |
f5b9d040 | 37 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 NIS |
38 | { |
39 | /* This used to be contents of do_binmode in doio.c */ | |
40 | #ifdef DOSISH | |
41 | # if defined(atarist) || defined(__MINT__) | |
f5b9d040 | 42 | if (!fflush(fp)) { |
60382766 NIS |
43 | if (mode & O_BINARY) |
44 | ((FILE*)fp)->_flag |= _IOBIN; | |
45 | else | |
46 | ((FILE*)fp)->_flag &= ~ _IOBIN; | |
47 | return 1; | |
48 | } | |
49 | return 0; | |
50 | # else | |
eb73beca | 51 | dTHX; |
f5b9d040 | 52 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
60382766 NIS |
53 | # if defined(WIN32) && defined(__BORLANDC__) |
54 | /* The translation mode of the stream is maintained independent | |
55 | * of the translation mode of the fd in the Borland RTL (heavy | |
56 | * digging through their runtime sources reveal). User has to | |
57 | * set the mode explicitly for the stream (though they don't | |
58 | * document this anywhere). GSAR 97-5-24 | |
59 | */ | |
f5b9d040 | 60 | fseek(fp,0L,0); |
60382766 | 61 | if (mode & O_BINARY) |
f5b9d040 | 62 | fp->flags |= _F_BIN; |
60382766 | 63 | else |
f5b9d040 | 64 | fp->flags &= ~ _F_BIN; |
60382766 NIS |
65 | # endif |
66 | return 1; | |
67 | } | |
68 | else | |
69 | return 0; | |
70 | # endif | |
71 | #else | |
72 | # if defined(USEMYBINMODE) | |
73 | if (my_binmode(fp, iotype, mode) != FALSE) | |
74 | return 1; | |
75 | else | |
76 | return 0; | |
77 | # else | |
78 | return 1; | |
79 | # endif | |
80 | #endif | |
81 | } | |
82 | ||
eb73beca NIS |
83 | #ifndef PERLIO_LAYERS |
84 | int | |
85 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
86 | { | |
87 | if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw")) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names); | |
92 | /* NOTREACHED */ | |
93 | return -1; | |
94 | } | |
95 | ||
13621cfb NIS |
96 | void |
97 | PerlIO_destruct(pTHX) | |
98 | { | |
99 | } | |
100 | ||
f5b9d040 NIS |
101 | int |
102 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) | |
103 | { | |
104 | return perlsio_binmode(fp,iotype,mode); | |
105 | } | |
60382766 | 106 | |
ee518936 NIS |
107 | /* De-mux PerlIO_openn() into fdopen, freopen and fopen type entries */ |
108 | ||
109 | PerlIO * | |
110 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args) | |
111 | { | |
112 | if (narg == 1) | |
113 | { | |
f6c77cf1 NIS |
114 | if (*args == &PL_sv_undef) |
115 | return PerlIO_tmpfile(); | |
ee518936 NIS |
116 | else |
117 | { | |
f6c77cf1 NIS |
118 | char *name = SvPV_nolen(*args); |
119 | if (*mode == '#') | |
120 | { | |
121 | fd = PerlLIO_open3(name,imode,perm); | |
122 | if (fd >= 0) | |
123 | return PerlIO_fdopen(fd,mode+1); | |
124 | } | |
125 | else if (old) | |
126 | { | |
127 | return PerlIO_reopen(name,mode,old); | |
128 | } | |
129 | else | |
130 | { | |
131 | return PerlIO_open(name,mode); | |
132 | } | |
ee518936 NIS |
133 | } |
134 | } | |
135 | else | |
136 | { | |
137 | return PerlIO_fdopen(fd,mode); | |
138 | } | |
139 | return NULL; | |
140 | } | |
141 | ||
ac27b0f5 NIS |
142 | #endif |
143 | ||
32e30700 | 144 | |
6f9d8c32 | 145 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
146 | |
147 | void | |
8ac85365 | 148 | PerlIO_init(void) |
760ac839 | 149 | { |
6f9d8c32 | 150 | /* Does nothing (yet) except force this file to be included |
760ac839 | 151 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
152 | of other functions that may be required by loadable |
153 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
154 | */ |
155 | } | |
156 | ||
33dcbb9a | 157 | #undef PerlIO_tmpfile |
158 | PerlIO * | |
8ac85365 | 159 | PerlIO_tmpfile(void) |
33dcbb9a | 160 | { |
161 | return tmpfile(); | |
162 | } | |
163 | ||
760ac839 LW |
164 | #else /* PERLIO_IS_STDIO */ |
165 | ||
166 | #ifdef USE_SFIO | |
167 | ||
168 | #undef HAS_FSETPOS | |
169 | #undef HAS_FGETPOS | |
170 | ||
6f9d8c32 | 171 | /* This section is just to make sure these functions |
760ac839 LW |
172 | get pulled in from libsfio.a |
173 | */ | |
174 | ||
175 | #undef PerlIO_tmpfile | |
176 | PerlIO * | |
c78749f2 | 177 | PerlIO_tmpfile(void) |
760ac839 LW |
178 | { |
179 | return sftmp(0); | |
180 | } | |
181 | ||
182 | void | |
c78749f2 | 183 | PerlIO_init(void) |
760ac839 | 184 | { |
6f9d8c32 NIS |
185 | /* Force this file to be included in perl binary. Which allows |
186 | * this file to force inclusion of other functions that may be | |
187 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
188 | */ |
189 | ||
190 | /* Hack | |
191 | * sfio does its own 'autoflush' on stdout in common cases. | |
6f9d8c32 | 192 | * Flush results in a lot of lseek()s to regular files and |
760ac839 LW |
193 | * lot of small writes to pipes. |
194 | */ | |
195 | sfset(sfstdout,SF_SHARE,0); | |
196 | } | |
197 | ||
17c3b450 | 198 | #else /* USE_SFIO */ |
6f9d8c32 | 199 | /*======================================================================================*/ |
6f9d8c32 | 200 | /* Implement all the PerlIO interface ourselves. |
9e353e3b | 201 | */ |
760ac839 | 202 | |
76ced9ad NIS |
203 | #include "perliol.h" |
204 | ||
b1ef6e3b | 205 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
206 | #ifdef I_UNISTD |
207 | #include <unistd.h> | |
208 | #endif | |
06da4f11 NIS |
209 | #ifdef HAS_MMAP |
210 | #include <sys/mman.h> | |
211 | #endif | |
212 | ||
f3862f8b | 213 | #include "XSUB.h" |
02f66e2f | 214 | |
88b61e10 | 215 | void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 | 216 | |
6f9d8c32 | 217 | void |
88b61e10 | 218 | PerlIO_debug(const char *fmt,...) |
6f9d8c32 | 219 | { |
adb71456 | 220 | dTHX; |
6f9d8c32 | 221 | static int dbg = 0; |
88b61e10 NIS |
222 | va_list ap; |
223 | va_start(ap,fmt); | |
6f9d8c32 NIS |
224 | if (!dbg) |
225 | { | |
00b02797 | 226 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 | 227 | if (s && *s) |
00b02797 | 228 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 NIS |
229 | else |
230 | dbg = -1; | |
231 | } | |
232 | if (dbg > 0) | |
233 | { | |
234 | dTHX; | |
6f9d8c32 NIS |
235 | SV *sv = newSVpvn("",0); |
236 | char *s; | |
237 | STRLEN len; | |
05d1247b NIS |
238 | s = CopFILE(PL_curcop); |
239 | if (!s) | |
240 | s = "(none)"; | |
241 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); | |
c7fc522f NIS |
242 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
243 | ||
6f9d8c32 | 244 | s = SvPV(sv,len); |
00b02797 | 245 | PerlLIO_write(dbg,s,len); |
6f9d8c32 NIS |
246 | SvREFCNT_dec(sv); |
247 | } | |
88b61e10 | 248 | va_end(ap); |
6f9d8c32 NIS |
249 | } |
250 | ||
9e353e3b NIS |
251 | /*--------------------------------------------------------------------------------------*/ |
252 | ||
9e353e3b NIS |
253 | /* Inner level routines */ |
254 | ||
b1ef6e3b | 255 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
256 | PerlIO *_perlio = NULL; |
257 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 258 | |
e3f3bf95 NIS |
259 | |
260 | ||
760ac839 | 261 | PerlIO * |
5f1a76d0 | 262 | PerlIO_allocate(pTHX) |
6f9d8c32 | 263 | { |
f3862f8b | 264 | /* Find a free slot in the table, allocating new table as necessary */ |
5f1a76d0 | 265 | PerlIO **last; |
6f9d8c32 | 266 | PerlIO *f; |
5f1a76d0 | 267 | last = &_perlio; |
05d1247b | 268 | while ((f = *last)) |
6f9d8c32 | 269 | { |
05d1247b NIS |
270 | int i; |
271 | last = (PerlIO **)(f); | |
272 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
6f9d8c32 | 273 | { |
05d1247b | 274 | if (!*++f) |
6f9d8c32 | 275 | { |
6f9d8c32 NIS |
276 | return f; |
277 | } | |
6f9d8c32 | 278 | } |
6f9d8c32 | 279 | } |
5f1a76d0 | 280 | f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO)); |
05d1247b | 281 | if (!f) |
5f1a76d0 NIS |
282 | { |
283 | return NULL; | |
766a733e | 284 | } |
05d1247b NIS |
285 | *last = f; |
286 | return f+1; | |
287 | } | |
288 | ||
289 | void | |
5f1a76d0 | 290 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b NIS |
291 | { |
292 | PerlIO *table = *tablep; | |
293 | if (table) | |
294 | { | |
295 | int i; | |
5f1a76d0 | 296 | PerlIO_cleantable(aTHX_ (PerlIO **) &(table[0])); |
05d1247b NIS |
297 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
298 | { | |
299 | PerlIO *f = table+i; | |
60382766 | 300 | if (*f) |
3789aae2 NIS |
301 | { |
302 | PerlIO_close(f); | |
303 | } | |
05d1247b | 304 | } |
5f1a76d0 | 305 | PerlMemShared_free(table); |
05d1247b NIS |
306 | *tablep = NULL; |
307 | } | |
308 | } | |
309 | ||
4a4a6116 NIS |
310 | HV *PerlIO_layer_hv; |
311 | AV *PerlIO_layer_av; | |
312 | ||
05d1247b | 313 | void |
5f1a76d0 | 314 | PerlIO_cleanup() |
05d1247b | 315 | { |
5f1a76d0 NIS |
316 | dTHX; |
317 | PerlIO_cleantable(aTHX_ &_perlio); | |
6f9d8c32 NIS |
318 | } |
319 | ||
9e353e3b | 320 | void |
13621cfb NIS |
321 | PerlIO_destruct(pTHX) |
322 | { | |
323 | PerlIO **table = &_perlio; | |
324 | PerlIO *f; | |
325 | while ((f = *table)) | |
326 | { | |
327 | int i; | |
328 | table = (PerlIO **)(f++); | |
329 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
330 | { | |
331 | PerlIO *x = f; | |
332 | PerlIOl *l; | |
333 | while ((l = *x)) | |
334 | { | |
335 | if (l->tab->kind & PERLIO_K_DESTRUCT) | |
336 | { | |
337 | PerlIO_debug("Destruct popping %s\n",l->tab->name); | |
338 | PerlIO_flush(x); | |
339 | PerlIO_pop(aTHX_ x); | |
340 | } | |
341 | else | |
342 | { | |
343 | x = PerlIONext(x); | |
344 | } | |
345 | } | |
346 | f++; | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
351 | void | |
a999f61b | 352 | PerlIO_pop(pTHX_ PerlIO *f) |
760ac839 | 353 | { |
9e353e3b NIS |
354 | PerlIOl *l = *f; |
355 | if (l) | |
6f9d8c32 | 356 | { |
86295796 | 357 | PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name); |
26fb694e NIS |
358 | if (l->tab->Popped) |
359 | (*l->tab->Popped)(f); | |
9e353e3b | 360 | *f = l->next; |
5f1a76d0 | 361 | PerlMemShared_free(l); |
6f9d8c32 | 362 | } |
6f9d8c32 NIS |
363 | } |
364 | ||
9e353e3b | 365 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 | 366 | /* XS Interface for perl code */ |
9e353e3b | 367 | |
b931b1d9 | 368 | XS(XS_perlio_import) |
f3862f8b NIS |
369 | { |
370 | dXSARGS; | |
371 | GV *gv = CvGV(cv); | |
372 | char *s = GvNAME(gv); | |
373 | STRLEN l = GvNAMELEN(gv); | |
374 | PerlIO_debug("%.*s\n",(int) l,s); | |
375 | XSRETURN_EMPTY; | |
376 | } | |
377 | ||
b931b1d9 | 378 | XS(XS_perlio_unimport) |
f3862f8b NIS |
379 | { |
380 | dXSARGS; | |
381 | GV *gv = CvGV(cv); | |
382 | char *s = GvNAME(gv); | |
383 | STRLEN l = GvNAMELEN(gv); | |
384 | PerlIO_debug("%.*s\n",(int) l,s); | |
385 | XSRETURN_EMPTY; | |
386 | } | |
387 | ||
f3862f8b | 388 | SV * |
a999f61b | 389 | PerlIO_find_layer(pTHX_ const char *name, STRLEN len) |
f3862f8b | 390 | { |
f3862f8b NIS |
391 | SV **svp; |
392 | SV *sv; | |
766a733e | 393 | if ((SSize_t) len <= 0) |
f3862f8b NIS |
394 | len = strlen(name); |
395 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
1141d9f8 NIS |
396 | if (!svp && PL_subname && PerlIO_layer_av && av_len(PerlIO_layer_av)+1 >= 2) |
397 | { | |
398 | SV *pkgsv = newSVpvn("PerlIO",6); | |
399 | SV *layer = newSVpvn(name,len); | |
400 | ENTER; | |
401 | /* The two SVs are magically freed by load_module */ | |
402 | Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv); | |
403 | LEAVE; | |
404 | /* Say this is lvalue so we get an 'undef' if still not there */ | |
405 | svp = hv_fetch(PerlIO_layer_hv,name,len,1); | |
406 | } | |
407 | if (svp && (sv = *svp)) | |
408 | { | |
409 | if (SvROK(sv)) | |
410 | return *svp; | |
411 | } | |
f3862f8b NIS |
412 | return NULL; |
413 | } | |
414 | ||
b13b2135 NIS |
415 | |
416 | static int | |
417 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
418 | { | |
419 | if (SvROK(sv)) | |
420 | { | |
b931b1d9 | 421 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
422 | PerlIO *ifp = IoIFP(io); |
423 | PerlIO *ofp = IoOFP(io); | |
424 | AV *av = (AV *) mg->mg_obj; | |
4659c93f | 425 | Perl_warn(aTHX_ "set %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
426 | } |
427 | return 0; | |
428 | } | |
429 | ||
430 | static int | |
431 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
432 | { | |
433 | if (SvROK(sv)) | |
434 | { | |
b931b1d9 | 435 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
436 | PerlIO *ifp = IoIFP(io); |
437 | PerlIO *ofp = IoOFP(io); | |
438 | AV *av = (AV *) mg->mg_obj; | |
4659c93f | 439 | Perl_warn(aTHX_ "get %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
440 | } |
441 | return 0; | |
442 | } | |
443 | ||
444 | static int | |
445 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
446 | { | |
4659c93f | 447 | Perl_warn(aTHX_ "clear %"SVf,sv); |
b13b2135 NIS |
448 | return 0; |
449 | } | |
450 | ||
451 | static int | |
452 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
453 | { | |
4659c93f | 454 | Perl_warn(aTHX_ "free %"SVf,sv); |
b13b2135 NIS |
455 | return 0; |
456 | } | |
457 | ||
458 | MGVTBL perlio_vtab = { | |
459 | perlio_mg_get, | |
460 | perlio_mg_set, | |
461 | NULL, /* len */ | |
462 | NULL, | |
463 | perlio_mg_free | |
464 | }; | |
465 | ||
466 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
467 | { | |
468 | dXSARGS; | |
469 | SV *sv = SvRV(ST(1)); | |
470 | AV *av = newAV(); | |
471 | MAGIC *mg; | |
472 | int count = 0; | |
473 | int i; | |
474 | sv_magic(sv, (SV *)av, '~', NULL, 0); | |
475 | SvRMAGICAL_off(sv); | |
476 | mg = mg_find(sv,'~'); | |
477 | mg->mg_virtual = &perlio_vtab; | |
478 | mg_magical(sv); | |
4659c93f | 479 | Perl_warn(aTHX_ "attrib %"SVf,sv); |
b13b2135 NIS |
480 | for (i=2; i < items; i++) |
481 | { | |
482 | STRLEN len; | |
ac27b0f5 | 483 | const char *name = SvPV(ST(i),len); |
a999f61b | 484 | SV *layer = PerlIO_find_layer(aTHX_ name,len); |
b13b2135 NIS |
485 | if (layer) |
486 | { | |
487 | av_push(av,SvREFCNT_inc(layer)); | |
488 | } | |
489 | else | |
490 | { | |
491 | ST(count) = ST(i); | |
492 | count++; | |
493 | } | |
494 | } | |
495 | SvREFCNT_dec(av); | |
496 | XSRETURN(count); | |
497 | } | |
498 | ||
e3f3bf95 NIS |
499 | SV * |
500 | PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab) | |
f3862f8b | 501 | { |
b931b1d9 | 502 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 | 503 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
e3f3bf95 NIS |
504 | return sv; |
505 | } | |
506 | ||
507 | void | |
508 | PerlIO_define_layer(pTHX_ PerlIO_funcs *tab) | |
509 | { | |
26fb694e NIS |
510 | if (!PerlIO_layer_hv) |
511 | { | |
512 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); | |
513 | } | |
e3f3bf95 | 514 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),PerlIO_tab_sv(aTHX_ tab),0); |
dfebf958 | 515 | PerlIO_debug("define %s %p\n",tab->name,tab); |
f3862f8b NIS |
516 | } |
517 | ||
1141d9f8 NIS |
518 | int |
519 | PerlIO_parse_layers(pTHX_ AV *av, const char *names) | |
520 | { | |
521 | if (names) | |
522 | { | |
523 | const char *s = names; | |
524 | while (*s) | |
525 | { | |
526 | while (isSPACE(*s) || *s == ':') | |
527 | s++; | |
528 | if (*s) | |
529 | { | |
530 | STRLEN llen = 0; | |
531 | const char *e = s; | |
532 | const char *as = Nullch; | |
533 | STRLEN alen = 0; | |
534 | if (!isIDFIRST(*s)) | |
535 | { | |
536 | /* Message is consistent with how attribute lists are passed. | |
537 | Even though this means "foo : : bar" is seen as an invalid separator | |
538 | character. */ | |
539 | char q = ((*s == '\'') ? '"' : '\''); | |
540 | Perl_warn(aTHX_ "perlio: invalid separator character %c%c%c in layer specification list", q, *s, q); | |
541 | return -1; | |
542 | } | |
543 | do | |
544 | { | |
545 | e++; | |
546 | } while (isALNUM(*e)); | |
547 | llen = e-s; | |
548 | if (*e == '(') | |
549 | { | |
550 | int nesting = 1; | |
551 | as = ++e; | |
552 | while (nesting) | |
553 | { | |
554 | switch (*e++) | |
555 | { | |
556 | case ')': | |
557 | if (--nesting == 0) | |
558 | alen = (e-1)-as; | |
559 | break; | |
560 | case '(': | |
561 | ++nesting; | |
562 | break; | |
563 | case '\\': | |
564 | /* It's a nul terminated string, not allowed to \ the terminating null. | |
565 | Anything other character is passed over. */ | |
566 | if (*e++) | |
567 | { | |
568 | break; | |
569 | } | |
570 | /* Drop through */ | |
571 | case '\0': | |
572 | e--; | |
573 | Perl_warn(aTHX_ "perlio: argument list not closed for layer \"%.*s\"",(int)(e - s),s); | |
574 | return -1; | |
575 | default: | |
576 | /* boring. */ | |
577 | break; | |
578 | } | |
579 | } | |
580 | } | |
581 | if (e > s) | |
582 | { | |
583 | SV *layer = PerlIO_find_layer(aTHX_ s,llen); | |
584 | if (layer) | |
585 | { | |
586 | av_push(av,SvREFCNT_inc(layer)); | |
587 | av_push(av,(as) ? newSVpvn(as,alen) : &PL_sv_undef); | |
588 | } | |
589 | else { | |
590 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)llen,s); | |
591 | return -1; | |
592 | } | |
593 | } | |
594 | s = e; | |
595 | } | |
596 | } | |
597 | } | |
598 | return 0; | |
599 | } | |
600 | ||
dfebf958 | 601 | void |
1141d9f8 | 602 | PerlIO_default_buffer(pTHX_ AV *av) |
dfebf958 NIS |
603 | { |
604 | PerlIO_funcs *tab = &PerlIO_perlio; | |
605 | if (O_BINARY != O_TEXT) | |
606 | { | |
607 | tab = &PerlIO_crlf; | |
608 | } | |
609 | else | |
610 | { | |
611 | if (PerlIO_stdio.Set_ptrcnt) | |
612 | { | |
613 | tab = &PerlIO_stdio; | |
614 | } | |
615 | } | |
616 | PerlIO_debug("Pushing %s\n",tab->name); | |
1141d9f8 NIS |
617 | av_push(av,SvREFCNT_inc(PerlIO_find_layer(aTHX_ tab->name,0))); |
618 | av_push(av,&PL_sv_undef); | |
dfebf958 NIS |
619 | } |
620 | ||
e3f3bf95 NIS |
621 | SV * |
622 | PerlIO_arg_fetch(pTHX_ AV *av,IV n) | |
623 | { | |
624 | SV **svp = av_fetch(av,n,FALSE); | |
625 | return (svp) ? *svp : Nullsv; | |
626 | } | |
627 | ||
f3862f8b | 628 | PerlIO_funcs * |
e3f3bf95 | 629 | PerlIO_layer_fetch(pTHX_ AV *av,IV n,PerlIO_funcs *def) |
f3862f8b | 630 | { |
e3f3bf95 | 631 | SV **svp = av_fetch(av,n,FALSE); |
f3862f8b | 632 | SV *layer; |
e3f3bf95 NIS |
633 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) |
634 | { | |
635 | /* PerlIO_debug("Layer %d is %s\n",n/2,tab->name); */ | |
636 | return INT2PTR(PerlIO_funcs *, SvIV(layer)); | |
637 | } | |
638 | if (!def) | |
f6c77cf1 | 639 | Perl_croak(aTHX_ "panic:PerlIO layer array corrupt"); |
e3f3bf95 NIS |
640 | return def; |
641 | } | |
642 | ||
643 | AV * | |
644 | PerlIO_default_layers(pTHX) | |
645 | { | |
646 | IV len; | |
26fb694e | 647 | if (!PerlIO_layer_av) |
f3862f8b | 648 | { |
1141d9f8 | 649 | const char *s = (PL_tainting) ? Nullch : PerlEnv_getenv("PERLIO"); |
26fb694e | 650 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); |
b931b1d9 NIS |
651 | newXS("perlio::import",XS_perlio_import,__FILE__); |
652 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
653 | #if 0 | |
b13b2135 | 654 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 | 655 | #endif |
a999f61b NIS |
656 | PerlIO_define_layer(aTHX_ &PerlIO_raw); |
657 | PerlIO_define_layer(aTHX_ &PerlIO_unix); | |
658 | PerlIO_define_layer(aTHX_ &PerlIO_perlio); | |
659 | PerlIO_define_layer(aTHX_ &PerlIO_stdio); | |
660 | PerlIO_define_layer(aTHX_ &PerlIO_crlf); | |
06da4f11 | 661 | #ifdef HAS_MMAP |
a999f61b | 662 | PerlIO_define_layer(aTHX_ &PerlIO_mmap); |
06da4f11 | 663 | #endif |
a999f61b NIS |
664 | PerlIO_define_layer(aTHX_ &PerlIO_utf8); |
665 | PerlIO_define_layer(aTHX_ &PerlIO_byte); | |
666 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(aTHX_ PerlIO_unix.name,0))); | |
1141d9f8 | 667 | av_push(PerlIO_layer_av,&PL_sv_undef); |
f3862f8b NIS |
668 | if (s) |
669 | { | |
1141d9f8 NIS |
670 | PerlIO_parse_layers(aTHX_ PerlIO_layer_av,s); |
671 | } | |
672 | else | |
673 | { | |
674 | PerlIO_default_buffer(aTHX_ PerlIO_layer_av); | |
f3862f8b NIS |
675 | } |
676 | } | |
1141d9f8 NIS |
677 | len = av_len(PerlIO_layer_av)+1; |
678 | if (len < 2) | |
f3862f8b | 679 | { |
1141d9f8 | 680 | PerlIO_default_buffer(aTHX_ PerlIO_layer_av); |
f3862f8b NIS |
681 | len = av_len(PerlIO_layer_av); |
682 | } | |
e3f3bf95 NIS |
683 | return PerlIO_layer_av; |
684 | } | |
685 | ||
686 | ||
687 | PerlIO_funcs * | |
688 | PerlIO_default_layer(pTHX_ I32 n) | |
689 | { | |
690 | AV *av = PerlIO_default_layers(aTHX); | |
1141d9f8 | 691 | n *= 2; |
f3862f8b | 692 | if (n < 0) |
e3f3bf95 NIS |
693 | n += av_len(PerlIO_layer_av)+1; |
694 | return PerlIO_layer_fetch(aTHX_ av,n, &PerlIO_stdio); | |
f3862f8b NIS |
695 | } |
696 | ||
a999f61b NIS |
697 | #define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1) |
698 | #define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0) | |
60382766 NIS |
699 | |
700 | void | |
1141d9f8 | 701 | PerlIO_stdstreams(pTHX) |
60382766 NIS |
702 | { |
703 | if (!_perlio) | |
704 | { | |
5f1a76d0 | 705 | PerlIO_allocate(aTHX); |
f5b9d040 NIS |
706 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
707 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); | |
708 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); | |
60382766 NIS |
709 | } |
710 | } | |
711 | ||
712 | PerlIO * | |
e3f3bf95 | 713 | PerlIO_push(pTHX_ PerlIO *f,PerlIO_funcs *tab,const char *mode,SV *arg) |
60382766 NIS |
714 | { |
715 | PerlIOl *l = NULL; | |
5f1a76d0 | 716 | l = PerlMemShared_calloc(tab->size,sizeof(char)); |
60382766 NIS |
717 | if (l) |
718 | { | |
719 | Zero(l,tab->size,char); | |
720 | l->next = *f; | |
721 | l->tab = tab; | |
722 | *f = l; | |
8c0134a8 NIS |
723 | PerlIO_debug("PerlIO_push f=%p %s %s %p\n",f,tab->name, |
724 | (mode) ? mode : "(Null)",arg); | |
e3f3bf95 | 725 | if ((*l->tab->Pushed)(f,mode,arg) != 0) |
60382766 | 726 | { |
a999f61b | 727 | PerlIO_pop(aTHX_ f); |
60382766 NIS |
728 | return NULL; |
729 | } | |
730 | } | |
731 | return f; | |
732 | } | |
733 | ||
dfebf958 | 734 | IV |
e3f3bf95 | 735 | PerlIOPop_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 736 | { |
a999f61b NIS |
737 | dTHX; |
738 | PerlIO_pop(aTHX_ f); | |
4b803d04 NIS |
739 | if (*f) |
740 | { | |
741 | PerlIO_flush(f); | |
a999f61b | 742 | PerlIO_pop(aTHX_ f); |
4b803d04 NIS |
743 | return 0; |
744 | } | |
745 | return -1; | |
746 | } | |
747 | ||
748 | IV | |
e3f3bf95 | 749 | PerlIORaw_pushed(PerlIO *f, const char *mode, SV *arg) |
dfebf958 | 750 | { |
4b803d04 | 751 | /* Remove the dummy layer */ |
a999f61b NIS |
752 | dTHX; |
753 | PerlIO_pop(aTHX_ f); | |
dfebf958 | 754 | /* Pop back to bottom layer */ |
4b803d04 | 755 | if (f && *f) |
dfebf958 | 756 | { |
4b803d04 NIS |
757 | int code = 0; |
758 | PerlIO_flush(f); | |
759 | while (!(PerlIOBase(f)->tab->kind & PERLIO_K_RAW)) | |
dfebf958 | 760 | { |
4b803d04 NIS |
761 | if (*PerlIONext(f)) |
762 | { | |
a999f61b | 763 | PerlIO_pop(aTHX_ f); |
4b803d04 NIS |
764 | } |
765 | else | |
766 | { | |
767 | /* Nothing bellow - push unix on top then remove it */ | |
e3f3bf95 | 768 | if (PerlIO_push(aTHX_ f,PerlIO_default_btm(),mode,arg)) |
4b803d04 | 769 | { |
a999f61b | 770 | PerlIO_pop(aTHX_ PerlIONext(f)); |
4b803d04 NIS |
771 | } |
772 | break; | |
773 | } | |
dfebf958 | 774 | } |
26fb694e | 775 | PerlIO_debug(":raw f=%p :%s\n",f,PerlIOBase(f)->tab->name); |
dfebf958 NIS |
776 | return 0; |
777 | } | |
778 | return -1; | |
779 | } | |
780 | ||
ac27b0f5 | 781 | int |
e3f3bf95 NIS |
782 | PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode, AV *layers, IV n) |
783 | { | |
784 | IV max = av_len(layers)+1; | |
785 | int code = 0; | |
786 | while (n < max) | |
787 | { | |
788 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers,n,NULL); | |
789 | if (tab) | |
790 | { | |
f6c77cf1 | 791 | if (!PerlIO_push(aTHX_ f,tab,mode,PerlIOArg)) |
e3f3bf95 | 792 | { |
8c0134a8 | 793 | code = -1; |
e3f3bf95 NIS |
794 | break; |
795 | } | |
796 | } | |
797 | n += 2; | |
798 | } | |
799 | return code; | |
800 | } | |
801 | ||
802 | int | |
ac27b0f5 NIS |
803 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
804 | { | |
1141d9f8 | 805 | int code = 0; |
ac27b0f5 NIS |
806 | if (names) |
807 | { | |
1141d9f8 NIS |
808 | AV *layers = newAV(); |
809 | code = PerlIO_parse_layers(aTHX_ layers,names); | |
810 | if (code == 0) | |
ac27b0f5 | 811 | { |
e3f3bf95 | 812 | code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0); |
ac27b0f5 | 813 | } |
1141d9f8 | 814 | SvREFCNT_dec((SV *) layers); |
ac27b0f5 | 815 | } |
1141d9f8 | 816 | return code; |
ac27b0f5 NIS |
817 | } |
818 | ||
f3862f8b | 819 | |
60382766 NIS |
820 | /*--------------------------------------------------------------------------------------*/ |
821 | /* Given the abstraction above the public API functions */ | |
822 | ||
823 | int | |
f5b9d040 | 824 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 825 | { |
86295796 | 826 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
a4d3c1d3 | 827 | f,PerlIOBase(f)->tab->name,iotype,mode, (names) ? names : "(Null)"); |
33af2bc7 | 828 | if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) |
76ced9ad | 829 | { |
f5b9d040 | 830 | PerlIO *top = f; |
60382766 NIS |
831 | PerlIOl *l; |
832 | while (l = *top) | |
76ced9ad | 833 | { |
60382766 NIS |
834 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
835 | { | |
836 | PerlIO_flush(top); | |
a4d3c1d3 | 837 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 NIS |
838 | break; |
839 | } | |
840 | top = PerlIONext(top); | |
76ced9ad NIS |
841 | } |
842 | } | |
f5b9d040 NIS |
843 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; |
844 | } | |
845 | ||
846 | #undef PerlIO__close | |
847 | int | |
848 | PerlIO__close(PerlIO *f) | |
849 | { | |
850 | return (*PerlIOBase(f)->tab->Close)(f); | |
76ced9ad NIS |
851 | } |
852 | ||
5f1a76d0 NIS |
853 | #undef PerlIO_fdupopen |
854 | PerlIO * | |
855 | PerlIO_fdupopen(pTHX_ PerlIO *f) | |
856 | { | |
857 | char buf[8]; | |
858 | int fd = PerlLIO_dup(PerlIO_fileno(f)); | |
859 | PerlIO *new = PerlIO_fdopen(fd,PerlIO_modestr(f,buf)); | |
860 | if (new) | |
861 | { | |
862 | Off_t posn = PerlIO_tell(f); | |
863 | PerlIO_seek(new,posn,SEEK_SET); | |
864 | } | |
766a733e | 865 | return new; |
5f1a76d0 | 866 | } |
f5b9d040 | 867 | |
b931b1d9 NIS |
868 | #undef PerlIO_close |
869 | int | |
870 | PerlIO_close(PerlIO *f) | |
871 | { | |
a999f61b | 872 | dTHX; |
f6c77cf1 NIS |
873 | int code = -1; |
874 | if (f && *f) | |
b931b1d9 | 875 | { |
f6c77cf1 NIS |
876 | code = (*PerlIOBase(f)->tab->Close)(f); |
877 | while (*f) | |
878 | { | |
879 | PerlIO_pop(aTHX_ f); | |
880 | } | |
b931b1d9 NIS |
881 | } |
882 | return code; | |
883 | } | |
884 | ||
885 | #undef PerlIO_fileno | |
886 | int | |
887 | PerlIO_fileno(PerlIO *f) | |
888 | { | |
889 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
890 | } | |
891 | ||
1141d9f8 NIS |
892 | static const char * |
893 | PerlIO_context_layers(pTHX_ const char *mode) | |
894 | { | |
895 | const char *type = NULL; | |
896 | /* Need to supply default layer info from open.pm */ | |
897 | if (PL_curcop) | |
898 | { | |
899 | SV *layers = PL_curcop->cop_io; | |
900 | if (layers) | |
901 | { | |
902 | STRLEN len; | |
903 | type = SvPV(layers,len); | |
904 | if (type && mode[0] != 'r') | |
905 | { | |
906 | /* Skip to write part */ | |
907 | const char *s = strchr(type,0); | |
908 | if (s && (s-type) < len) | |
909 | { | |
910 | type = s+1; | |
911 | } | |
912 | } | |
913 | } | |
914 | } | |
915 | return type; | |
916 | } | |
917 | ||
e3f3bf95 NIS |
918 | AV * |
919 | PerlIO_resolve_layers(pTHX_ const char *layers,const char *mode,int narg, SV **args) | |
ee518936 | 920 | { |
e3f3bf95 | 921 | AV *def = PerlIO_default_layers(aTHX); |
f6c77cf1 | 922 | int incdef = 1; |
e3f3bf95 NIS |
923 | if (!_perlio) |
924 | PerlIO_stdstreams(aTHX); | |
f6c77cf1 NIS |
925 | if (narg) |
926 | { | |
13621cfb | 927 | if (SvROK(*args) && !sv_isobject(*args)) |
f6c77cf1 | 928 | { |
13621cfb | 929 | if (SvTYPE(SvRV(*args)) < SVt_PVAV) |
f6c77cf1 | 930 | { |
13621cfb | 931 | SV *handler = PerlIO_find_layer(aTHX_ "Scalar",6); |
f6c77cf1 NIS |
932 | if (handler) |
933 | { | |
934 | def = newAV(); | |
935 | av_push(def,handler); | |
936 | av_push(def,&PL_sv_undef); | |
937 | incdef = 0; | |
938 | } | |
939 | } | |
940 | else | |
941 | { | |
13621cfb | 942 | Perl_croak(aTHX_ "Unsupported reference arg to open()"); |
f6c77cf1 NIS |
943 | } |
944 | } | |
945 | } | |
1141d9f8 NIS |
946 | if (!layers) |
947 | layers = PerlIO_context_layers(aTHX_ mode); | |
e3f3bf95 NIS |
948 | if (layers && *layers) |
949 | { | |
f6c77cf1 NIS |
950 | AV *av; |
951 | if (incdef) | |
e3f3bf95 | 952 | { |
f6c77cf1 NIS |
953 | IV n = av_len(def)+1; |
954 | av = newAV(); | |
955 | while (n-- > 0) | |
956 | { | |
957 | SV **svp = av_fetch(def,n,0); | |
958 | av_store(av,n,(svp) ? SvREFCNT_inc(*svp) : &PL_sv_undef); | |
959 | } | |
960 | } | |
961 | else | |
962 | { | |
963 | av = def; | |
e3f3bf95 NIS |
964 | } |
965 | PerlIO_parse_layers(aTHX_ av,layers); | |
966 | return av; | |
967 | } | |
968 | else | |
969 | { | |
f6c77cf1 NIS |
970 | if (incdef) |
971 | SvREFCNT_inc(def); | |
e3f3bf95 NIS |
972 | return def; |
973 | } | |
ee518936 NIS |
974 | } |
975 | ||
976 | PerlIO * | |
977 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) | |
978 | { | |
f6c77cf1 | 979 | if (!f && narg == 1 && *args == &PL_sv_undef) |
5e334b7b | 980 | { |
f6c77cf1 | 981 | if ((f = PerlIO_tmpfile())) |
e3f3bf95 | 982 | { |
f6c77cf1 NIS |
983 | if (!layers) |
984 | layers = PerlIO_context_layers(aTHX_ mode); | |
985 | if (layers && *layers) | |
986 | PerlIO_apply_layers(aTHX_ f,mode,layers); | |
e3f3bf95 | 987 | } |
5e334b7b | 988 | } |
e3f3bf95 NIS |
989 | else |
990 | { | |
f6c77cf1 NIS |
991 | AV *layera; |
992 | IV n; | |
993 | PerlIO_funcs *tab; | |
994 | if (f && *f) | |
e3f3bf95 | 995 | { |
f6c77cf1 NIS |
996 | /* This is "reopen" - it is not tested as perl does not use it yet */ |
997 | PerlIOl *l = *f; | |
998 | layera = newAV(); | |
999 | while (l) | |
1000 | { | |
1001 | SV *arg = (l->tab->Getarg) ? (*l->tab->Getarg)(&l) : &PL_sv_undef; | |
1002 | av_unshift(layera,2); | |
1003 | av_store(layera,0,PerlIO_tab_sv(aTHX_ l->tab)); | |
1004 | av_store(layera,1,arg); | |
1005 | l = *PerlIONext(&l); | |
1006 | } | |
e3f3bf95 | 1007 | } |
f6c77cf1 NIS |
1008 | else |
1009 | { | |
1010 | layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args); | |
1011 | } | |
1012 | n = av_len(layera)-1; | |
1013 | while (n >= 0) | |
1014 | { | |
1015 | PerlIO_funcs *t = PerlIO_layer_fetch(aTHX_ layera,n,NULL); | |
1016 | if (t && t->Open) | |
1017 | { | |
1018 | tab = t; | |
1019 | break; | |
1020 | } | |
1021 | n -= 2; | |
1022 | } | |
1023 | if (tab) | |
e3f3bf95 | 1024 | { |
f6c77cf1 NIS |
1025 | PerlIO_debug("openn(%s,'%s','%s',%d,%x,%o,%p,%d,%p)\n", |
1026 | tab->name,layers,mode,fd,imode,perm,f,narg,args); | |
1027 | f = (*tab->Open)(aTHX_ tab, layera, n, mode,fd,imode,perm,f,narg,args); | |
1028 | if (f) | |
e3f3bf95 | 1029 | { |
f6c77cf1 | 1030 | if (n+2 < av_len(layera)+1) |
e3f3bf95 | 1031 | { |
f6c77cf1 NIS |
1032 | if (PerlIO_apply_layera(aTHX_ f, mode, layera, n+2) != 0) |
1033 | { | |
1034 | f = NULL; | |
1035 | } | |
e3f3bf95 NIS |
1036 | } |
1037 | } | |
1038 | } | |
f6c77cf1 | 1039 | SvREFCNT_dec(layera); |
e3f3bf95 | 1040 | } |
5e334b7b | 1041 | return f; |
ee518936 | 1042 | } |
b931b1d9 NIS |
1043 | |
1044 | ||
9e353e3b NIS |
1045 | #undef PerlIO_fdopen |
1046 | PerlIO * | |
1047 | PerlIO_fdopen(int fd, const char *mode) | |
1048 | { | |
ee518936 NIS |
1049 | dTHX; |
1050 | return PerlIO_openn(aTHX_ Nullch,mode,fd,0,0,NULL,0,NULL); | |
9e353e3b NIS |
1051 | } |
1052 | ||
6f9d8c32 NIS |
1053 | #undef PerlIO_open |
1054 | PerlIO * | |
1055 | PerlIO_open(const char *path, const char *mode) | |
1056 | { | |
ee518936 NIS |
1057 | dTHX; |
1058 | SV *name = sv_2mortal(newSVpvn(path,strlen(path))); | |
1059 | return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,NULL,1,&name); | |
6f9d8c32 NIS |
1060 | } |
1061 | ||
9e353e3b NIS |
1062 | #undef PerlIO_reopen |
1063 | PerlIO * | |
1064 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 1065 | { |
ee518936 NIS |
1066 | dTHX; |
1067 | SV *name = sv_2mortal(newSVpvn(path,strlen(path))); | |
1068 | return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,f,1,&name); | |
760ac839 LW |
1069 | } |
1070 | ||
9e353e3b NIS |
1071 | #undef PerlIO_read |
1072 | SSize_t | |
1073 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 1074 | { |
9e353e3b | 1075 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
1076 | } |
1077 | ||
313ca112 NIS |
1078 | #undef PerlIO_unread |
1079 | SSize_t | |
1080 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1081 | { |
313ca112 | 1082 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
1083 | } |
1084 | ||
9e353e3b NIS |
1085 | #undef PerlIO_write |
1086 | SSize_t | |
1087 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1088 | { |
9e353e3b | 1089 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
1090 | } |
1091 | ||
9e353e3b | 1092 | #undef PerlIO_seek |
6f9d8c32 | 1093 | int |
9e353e3b | 1094 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 1095 | { |
9e353e3b | 1096 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
1097 | } |
1098 | ||
9e353e3b NIS |
1099 | #undef PerlIO_tell |
1100 | Off_t | |
1101 | PerlIO_tell(PerlIO *f) | |
760ac839 | 1102 | { |
9e353e3b | 1103 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
1104 | } |
1105 | ||
9e353e3b | 1106 | #undef PerlIO_flush |
6f9d8c32 | 1107 | int |
9e353e3b | 1108 | PerlIO_flush(PerlIO *f) |
760ac839 | 1109 | { |
6f9d8c32 NIS |
1110 | if (f) |
1111 | { | |
26fb694e NIS |
1112 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1113 | if (tab && tab->Flush) | |
1114 | { | |
1115 | return (*tab->Flush)(f); | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | PerlIO_debug("Cannot flush f=%p :%s\n",f,tab->name); | |
1120 | errno = EINVAL; | |
1121 | return -1; | |
1122 | } | |
6f9d8c32 | 1123 | } |
9e353e3b | 1124 | else |
6f9d8c32 | 1125 | { |
05d1247b | 1126 | PerlIO **table = &_perlio; |
9e353e3b | 1127 | int code = 0; |
05d1247b | 1128 | while ((f = *table)) |
6f9d8c32 | 1129 | { |
05d1247b NIS |
1130 | int i; |
1131 | table = (PerlIO **)(f++); | |
1132 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
1133 | { |
1134 | if (*f && PerlIO_flush(f) != 0) | |
1135 | code = -1; | |
05d1247b | 1136 | f++; |
9e353e3b | 1137 | } |
6f9d8c32 | 1138 | } |
9e353e3b | 1139 | return code; |
6f9d8c32 | 1140 | } |
760ac839 LW |
1141 | } |
1142 | ||
06da4f11 NIS |
1143 | #undef PerlIO_fill |
1144 | int | |
1145 | PerlIO_fill(PerlIO *f) | |
1146 | { | |
1147 | return (*PerlIOBase(f)->tab->Fill)(f); | |
1148 | } | |
1149 | ||
f3862f8b NIS |
1150 | #undef PerlIO_isutf8 |
1151 | int | |
1152 | PerlIO_isutf8(PerlIO *f) | |
1153 | { | |
1154 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
1155 | } | |
1156 | ||
9e353e3b | 1157 | #undef PerlIO_eof |
6f9d8c32 | 1158 | int |
9e353e3b | 1159 | PerlIO_eof(PerlIO *f) |
760ac839 | 1160 | { |
9e353e3b NIS |
1161 | return (*PerlIOBase(f)->tab->Eof)(f); |
1162 | } | |
1163 | ||
1164 | #undef PerlIO_error | |
1165 | int | |
1166 | PerlIO_error(PerlIO *f) | |
1167 | { | |
1168 | return (*PerlIOBase(f)->tab->Error)(f); | |
1169 | } | |
1170 | ||
1171 | #undef PerlIO_clearerr | |
1172 | void | |
1173 | PerlIO_clearerr(PerlIO *f) | |
1174 | { | |
f5b9d040 NIS |
1175 | if (f && *f) |
1176 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
9e353e3b NIS |
1177 | } |
1178 | ||
1179 | #undef PerlIO_setlinebuf | |
1180 | void | |
1181 | PerlIO_setlinebuf(PerlIO *f) | |
1182 | { | |
1183 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
1184 | } | |
1185 | ||
1186 | #undef PerlIO_has_base | |
1187 | int | |
1188 | PerlIO_has_base(PerlIO *f) | |
1189 | { | |
1190 | if (f && *f) | |
6f9d8c32 | 1191 | { |
9e353e3b | 1192 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 1193 | } |
9e353e3b | 1194 | return 0; |
760ac839 LW |
1195 | } |
1196 | ||
9e353e3b NIS |
1197 | #undef PerlIO_fast_gets |
1198 | int | |
1199 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 1200 | { |
5e2ab84b | 1201 | if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) |
6f9d8c32 | 1202 | { |
5e2ab84b NIS |
1203 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1204 | return (tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 1205 | } |
9e353e3b NIS |
1206 | return 0; |
1207 | } | |
1208 | ||
1209 | #undef PerlIO_has_cntptr | |
1210 | int | |
1211 | PerlIO_has_cntptr(PerlIO *f) | |
1212 | { | |
1213 | if (f && *f) | |
1214 | { | |
1215 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1216 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
1217 | } | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | #undef PerlIO_canset_cnt | |
1222 | int | |
1223 | PerlIO_canset_cnt(PerlIO *f) | |
1224 | { | |
1225 | if (f && *f) | |
1226 | { | |
c7fc522f NIS |
1227 | PerlIOl *l = PerlIOBase(f); |
1228 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 1229 | } |
c7fc522f | 1230 | return 0; |
760ac839 LW |
1231 | } |
1232 | ||
1233 | #undef PerlIO_get_base | |
888911fc | 1234 | STDCHAR * |
a20bf0c3 | 1235 | PerlIO_get_base(PerlIO *f) |
760ac839 | 1236 | { |
9e353e3b NIS |
1237 | return (*PerlIOBase(f)->tab->Get_base)(f); |
1238 | } | |
1239 | ||
1240 | #undef PerlIO_get_bufsiz | |
1241 | int | |
1242 | PerlIO_get_bufsiz(PerlIO *f) | |
1243 | { | |
1244 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
1245 | } | |
1246 | ||
1247 | #undef PerlIO_get_ptr | |
1248 | STDCHAR * | |
1249 | PerlIO_get_ptr(PerlIO *f) | |
1250 | { | |
5e2ab84b NIS |
1251 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1252 | if (tab->Get_ptr == NULL) | |
1253 | return NULL; | |
1254 | return (*tab->Get_ptr)(f); | |
9e353e3b NIS |
1255 | } |
1256 | ||
1257 | #undef PerlIO_get_cnt | |
05d1247b | 1258 | int |
9e353e3b NIS |
1259 | PerlIO_get_cnt(PerlIO *f) |
1260 | { | |
5e2ab84b NIS |
1261 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1262 | if (tab->Get_cnt == NULL) | |
1263 | return 0; | |
1264 | return (*tab->Get_cnt)(f); | |
9e353e3b NIS |
1265 | } |
1266 | ||
1267 | #undef PerlIO_set_cnt | |
1268 | void | |
05d1247b | 1269 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 1270 | { |
f3862f8b | 1271 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
1272 | } |
1273 | ||
1274 | #undef PerlIO_set_ptrcnt | |
1275 | void | |
05d1247b | 1276 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 1277 | { |
5e2ab84b NIS |
1278 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1279 | if (tab->Set_ptrcnt == NULL) | |
1280 | { | |
1281 | dTHX; | |
1282 | Perl_croak(aTHX_ "PerlIO buffer snooping abuse"); | |
1283 | } | |
f3862f8b | 1284 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
1285 | } |
1286 | ||
1287 | /*--------------------------------------------------------------------------------------*/ | |
dfebf958 NIS |
1288 | /* utf8 and raw dummy layers */ |
1289 | ||
26fb694e | 1290 | IV |
e3f3bf95 | 1291 | PerlIOUtf8_pushed(PerlIO *f, const char *mode, SV *arg) |
26fb694e NIS |
1292 | { |
1293 | if (PerlIONext(f)) | |
1294 | { | |
a999f61b | 1295 | dTHX; |
26fb694e | 1296 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
a999f61b | 1297 | PerlIO_pop(aTHX_ f); |
26fb694e NIS |
1298 | if (tab->kind & PERLIO_K_UTF8) |
1299 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1300 | else | |
1301 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
1302 | return 0; | |
1303 | } | |
1304 | return -1; | |
1305 | } | |
1306 | ||
dfebf958 NIS |
1307 | PerlIO_funcs PerlIO_utf8 = { |
1308 | "utf8", | |
1309 | sizeof(PerlIOl), | |
26fb694e | 1310 | PERLIO_K_DUMMY|PERLIO_F_UTF8, |
26fb694e NIS |
1311 | PerlIOUtf8_pushed, |
1312 | NULL, | |
1313 | NULL, | |
1314 | NULL, | |
1315 | NULL, | |
1316 | NULL, | |
1317 | NULL, | |
1318 | NULL, | |
e3f3bf95 NIS |
1319 | NULL, |
1320 | NULL, | |
1321 | NULL, | |
26fb694e NIS |
1322 | NULL, /* flush */ |
1323 | NULL, /* fill */ | |
1324 | NULL, | |
1325 | NULL, | |
1326 | NULL, | |
1327 | NULL, | |
1328 | NULL, /* get_base */ | |
1329 | NULL, /* get_bufsiz */ | |
1330 | NULL, /* get_ptr */ | |
1331 | NULL, /* get_cnt */ | |
1332 | NULL, /* set_ptrcnt */ | |
1333 | }; | |
1334 | ||
1335 | PerlIO_funcs PerlIO_byte = { | |
1336 | "bytes", | |
1337 | sizeof(PerlIOl), | |
1338 | PERLIO_K_DUMMY, | |
dfebf958 NIS |
1339 | PerlIOUtf8_pushed, |
1340 | NULL, | |
1341 | NULL, | |
1342 | NULL, | |
1343 | NULL, | |
1344 | NULL, | |
1345 | NULL, | |
1346 | NULL, | |
e3f3bf95 NIS |
1347 | NULL, |
1348 | NULL, | |
1349 | NULL, | |
dfebf958 NIS |
1350 | NULL, /* flush */ |
1351 | NULL, /* fill */ | |
1352 | NULL, | |
1353 | NULL, | |
1354 | NULL, | |
1355 | NULL, | |
1356 | NULL, /* get_base */ | |
1357 | NULL, /* get_bufsiz */ | |
1358 | NULL, /* get_ptr */ | |
1359 | NULL, /* get_cnt */ | |
1360 | NULL, /* set_ptrcnt */ | |
1361 | }; | |
1362 | ||
1363 | PerlIO * | |
e3f3bf95 | 1364 | PerlIORaw_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n,const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args) |
dfebf958 | 1365 | { |
4b803d04 | 1366 | PerlIO_funcs *tab = PerlIO_default_btm(); |
e3f3bf95 | 1367 | return (*tab->Open)(aTHX_ tab,layers,n-2,mode,fd,imode,perm,old,narg,args); |
dfebf958 NIS |
1368 | } |
1369 | ||
1370 | PerlIO_funcs PerlIO_raw = { | |
1371 | "raw", | |
1372 | sizeof(PerlIOl), | |
4b803d04 | 1373 | PERLIO_K_DUMMY, |
dfebf958 | 1374 | PerlIORaw_pushed, |
26fb694e | 1375 | PerlIOBase_popped, |
e3f3bf95 NIS |
1376 | PerlIORaw_open, |
1377 | NULL, | |
1378 | NULL, | |
dfebf958 NIS |
1379 | NULL, |
1380 | NULL, | |
1381 | NULL, | |
1382 | NULL, | |
1383 | NULL, | |
1384 | NULL, | |
1385 | NULL, /* flush */ | |
1386 | NULL, /* fill */ | |
1387 | NULL, | |
1388 | NULL, | |
1389 | NULL, | |
1390 | NULL, | |
1391 | NULL, /* get_base */ | |
1392 | NULL, /* get_bufsiz */ | |
1393 | NULL, /* get_ptr */ | |
1394 | NULL, /* get_cnt */ | |
1395 | NULL, /* set_ptrcnt */ | |
1396 | }; | |
1397 | /*--------------------------------------------------------------------------------------*/ | |
1398 | /*--------------------------------------------------------------------------------------*/ | |
9e353e3b NIS |
1399 | /* "Methods" of the "base class" */ |
1400 | ||
1401 | IV | |
1402 | PerlIOBase_fileno(PerlIO *f) | |
1403 | { | |
1404 | return PerlIO_fileno(PerlIONext(f)); | |
1405 | } | |
1406 | ||
f5b9d040 NIS |
1407 | char * |
1408 | PerlIO_modestr(PerlIO *f,char *buf) | |
1409 | { | |
1410 | char *s = buf; | |
1411 | IV flags = PerlIOBase(f)->flags; | |
5f1a76d0 NIS |
1412 | if (flags & PERLIO_F_APPEND) |
1413 | { | |
1414 | *s++ = 'a'; | |
1415 | if (flags & PERLIO_F_CANREAD) | |
1416 | { | |
1417 | *s++ = '+'; | |
1418 | } | |
766a733e | 1419 | } |
5f1a76d0 NIS |
1420 | else if (flags & PERLIO_F_CANREAD) |
1421 | { | |
1422 | *s++ = 'r'; | |
1423 | if (flags & PERLIO_F_CANWRITE) | |
1424 | *s++ = '+'; | |
1425 | } | |
1426 | else if (flags & PERLIO_F_CANWRITE) | |
1427 | { | |
1428 | *s++ = 'w'; | |
1429 | if (flags & PERLIO_F_CANREAD) | |
1430 | { | |
1431 | *s++ = '+'; | |
1432 | } | |
1433 | } | |
1434 | #if O_TEXT != O_BINARY | |
1435 | if (!(flags & PERLIO_F_CRLF)) | |
a4d3c1d3 | 1436 | *s++ = 'b'; |
5f1a76d0 | 1437 | #endif |
f5b9d040 NIS |
1438 | *s = '\0'; |
1439 | return buf; | |
1440 | } | |
1441 | ||
76ced9ad | 1442 | IV |
e3f3bf95 | 1443 | PerlIOBase_pushed(PerlIO *f, const char *mode, SV *arg) |
9e353e3b | 1444 | { |
76ced9ad | 1445 | PerlIOl *l = PerlIOBase(f); |
f5b9d040 NIS |
1446 | const char *omode = mode; |
1447 | char temp[8]; | |
5e2ab84b | 1448 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
76ced9ad | 1449 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
f5b9d040 | 1450 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
5e2ab84b NIS |
1451 | if (tab->Set_ptrcnt != NULL) |
1452 | l->flags |= PERLIO_F_FASTGETS; | |
76ced9ad | 1453 | if (mode) |
6f9d8c32 | 1454 | { |
76ced9ad | 1455 | switch (*mode++) |
06da4f11 | 1456 | { |
76ced9ad | 1457 | case 'r': |
f5b9d040 | 1458 | l->flags |= PERLIO_F_CANREAD; |
76ced9ad NIS |
1459 | break; |
1460 | case 'a': | |
f5b9d040 | 1461 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1462 | break; |
1463 | case 'w': | |
f5b9d040 | 1464 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1465 | break; |
1466 | default: | |
1467 | errno = EINVAL; | |
1468 | return -1; | |
1469 | } | |
1470 | while (*mode) | |
1471 | { | |
1472 | switch (*mode++) | |
1473 | { | |
1474 | case '+': | |
1475 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
1476 | break; | |
1477 | case 'b': | |
f5b9d040 NIS |
1478 | l->flags &= ~PERLIO_F_CRLF; |
1479 | break; | |
1480 | case 't': | |
1481 | l->flags |= PERLIO_F_CRLF; | |
76ced9ad NIS |
1482 | break; |
1483 | default: | |
1484 | errno = EINVAL; | |
1485 | return -1; | |
1486 | } | |
06da4f11 | 1487 | } |
6f9d8c32 | 1488 | } |
76ced9ad NIS |
1489 | else |
1490 | { | |
1491 | if (l->next) | |
1492 | { | |
1493 | l->flags |= l->next->flags & | |
f5b9d040 | 1494 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad NIS |
1495 | } |
1496 | } | |
5e2ab84b | 1497 | #if 0 |
4659c93f | 1498 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08"UVxf" (%s)\n", |
f5b9d040 | 1499 | f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)", |
a4d3c1d3 | 1500 | l->flags,PerlIO_modestr(f,temp)); |
5e2ab84b | 1501 | #endif |
76ced9ad NIS |
1502 | return 0; |
1503 | } | |
1504 | ||
1505 | IV | |
1506 | PerlIOBase_popped(PerlIO *f) | |
1507 | { | |
1508 | return 0; | |
760ac839 LW |
1509 | } |
1510 | ||
9e353e3b NIS |
1511 | SSize_t |
1512 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1513 | { | |
a999f61b | 1514 | dTHX; |
9e353e3b | 1515 | Off_t old = PerlIO_tell(f); |
72e44f29 | 1516 | SSize_t done; |
e3f3bf95 | 1517 | PerlIO_push(aTHX_ f,&PerlIO_pending,"r",Nullsv); |
72e44f29 NIS |
1518 | done = PerlIOBuf_unread(f,vbuf,count); |
1519 | PerlIOSelf(f,PerlIOBuf)->posn = old - done; | |
1520 | return done; | |
9e353e3b NIS |
1521 | } |
1522 | ||
f6c77cf1 NIS |
1523 | SSize_t |
1524 | PerlIOBase_read(PerlIO *f, void *vbuf, Size_t count) | |
1525 | { | |
1526 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1527 | if (f) | |
1528 | { | |
1529 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
1530 | return 0; | |
1531 | while (count > 0) | |
1532 | { | |
1533 | SSize_t avail = PerlIO_get_cnt(f); | |
1534 | SSize_t take = (count < avail) ? count : avail; | |
1535 | if (take > 0) | |
1536 | { | |
1537 | STDCHAR *ptr = PerlIO_get_ptr(f); | |
1538 | Copy(ptr,buf,take,STDCHAR); | |
1539 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); | |
1540 | count -= take; | |
1541 | buf += take; | |
1542 | } | |
1543 | if (count > 0 && avail <= 0) | |
1544 | { | |
1545 | if (PerlIO_fill(f) != 0) | |
1546 | break; | |
1547 | } | |
1548 | } | |
1549 | return (buf - (STDCHAR *) vbuf); | |
1550 | } | |
1551 | return 0; | |
1552 | } | |
1553 | ||
9e353e3b | 1554 | IV |
06da4f11 | 1555 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
1556 | { |
1557 | return 0; | |
1558 | } | |
1559 | ||
1560 | IV | |
06da4f11 NIS |
1561 | PerlIOBase_noop_fail(PerlIO *f) |
1562 | { | |
1563 | return -1; | |
1564 | } | |
1565 | ||
1566 | IV | |
9e353e3b NIS |
1567 | PerlIOBase_close(PerlIO *f) |
1568 | { | |
1569 | IV code = 0; | |
f5b9d040 | 1570 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
1571 | if (PerlIO_flush(f) != 0) |
1572 | code = -1; | |
f6c77cf1 | 1573 | if (n && *n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b NIS |
1574 | code = -1; |
1575 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
1576 | return code; | |
1577 | } | |
1578 | ||
1579 | IV | |
1580 | PerlIOBase_eof(PerlIO *f) | |
1581 | { | |
1582 | if (f && *f) | |
1583 | { | |
1584 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
1585 | } | |
1586 | return 1; | |
1587 | } | |
1588 | ||
1589 | IV | |
1590 | PerlIOBase_error(PerlIO *f) | |
1591 | { | |
1592 | if (f && *f) | |
1593 | { | |
1594 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
1595 | } | |
1596 | return 1; | |
1597 | } | |
1598 | ||
1599 | void | |
1600 | PerlIOBase_clearerr(PerlIO *f) | |
1601 | { | |
1602 | if (f && *f) | |
1603 | { | |
f5b9d040 NIS |
1604 | PerlIO *n = PerlIONext(f); |
1605 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); | |
1606 | if (n) | |
1607 | PerlIO_clearerr(n); | |
9e353e3b NIS |
1608 | } |
1609 | } | |
1610 | ||
1611 | void | |
1612 | PerlIOBase_setlinebuf(PerlIO *f) | |
1613 | { | |
f6c77cf1 NIS |
1614 | if (f) |
1615 | { | |
1616 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF; | |
1617 | } | |
9e353e3b NIS |
1618 | } |
1619 | ||
9e353e3b NIS |
1620 | /*--------------------------------------------------------------------------------------*/ |
1621 | /* Bottom-most level for UNIX-like case */ | |
1622 | ||
1623 | typedef struct | |
1624 | { | |
1625 | struct _PerlIO base; /* The generic part */ | |
1626 | int fd; /* UNIX like file descriptor */ | |
1627 | int oflags; /* open/fcntl flags */ | |
1628 | } PerlIOUnix; | |
1629 | ||
6f9d8c32 | 1630 | int |
9e353e3b | 1631 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 1632 | { |
9e353e3b NIS |
1633 | int oflags = -1; |
1634 | switch(*mode) | |
1635 | { | |
1636 | case 'r': | |
1637 | oflags = O_RDONLY; | |
1638 | if (*++mode == '+') | |
1639 | { | |
1640 | oflags = O_RDWR; | |
1641 | mode++; | |
1642 | } | |
1643 | break; | |
1644 | ||
1645 | case 'w': | |
1646 | oflags = O_CREAT|O_TRUNC; | |
1647 | if (*++mode == '+') | |
1648 | { | |
1649 | oflags |= O_RDWR; | |
1650 | mode++; | |
1651 | } | |
1652 | else | |
1653 | oflags |= O_WRONLY; | |
1654 | break; | |
1655 | ||
1656 | case 'a': | |
1657 | oflags = O_CREAT|O_APPEND; | |
1658 | if (*++mode == '+') | |
1659 | { | |
1660 | oflags |= O_RDWR; | |
1661 | mode++; | |
1662 | } | |
1663 | else | |
1664 | oflags |= O_WRONLY; | |
1665 | break; | |
1666 | } | |
83b075c3 NIS |
1667 | if (*mode == 'b') |
1668 | { | |
f5b9d040 NIS |
1669 | oflags |= O_BINARY; |
1670 | oflags &= ~O_TEXT; | |
1671 | mode++; | |
1672 | } | |
1673 | else if (*mode == 't') | |
1674 | { | |
1675 | oflags |= O_TEXT; | |
1676 | oflags &= ~O_BINARY; | |
60382766 NIS |
1677 | mode++; |
1678 | } | |
99efab12 NIS |
1679 | /* Always open in binary mode */ |
1680 | oflags |= O_BINARY; | |
9e353e3b | 1681 | if (*mode || oflags == -1) |
6f9d8c32 | 1682 | { |
9e353e3b NIS |
1683 | errno = EINVAL; |
1684 | oflags = -1; | |
6f9d8c32 | 1685 | } |
9e353e3b NIS |
1686 | return oflags; |
1687 | } | |
1688 | ||
1689 | IV | |
1690 | PerlIOUnix_fileno(PerlIO *f) | |
1691 | { | |
1692 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
1693 | } | |
1694 | ||
4b803d04 | 1695 | IV |
e3f3bf95 | 1696 | PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 1697 | { |
e3f3bf95 | 1698 | IV code = PerlIOBase_pushed(f,mode,arg); |
4b803d04 NIS |
1699 | if (*PerlIONext(f)) |
1700 | { | |
1701 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); | |
1702 | s->fd = PerlIO_fileno(PerlIONext(f)); | |
1703 | s->oflags = PerlIOUnix_oflags(mode); | |
1704 | } | |
1705 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1706 | return code; | |
1707 | } | |
1708 | ||
9e353e3b | 1709 | PerlIO * |
e3f3bf95 | 1710 | PerlIOUnix_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 1711 | { |
ee518936 | 1712 | if (f) |
9e353e3b | 1713 | { |
ee518936 NIS |
1714 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
1715 | (*PerlIOBase(f)->tab->Close)(f); | |
1716 | } | |
1717 | if (narg > 0) | |
1718 | { | |
1719 | char *path = SvPV_nolen(*args); | |
1720 | if (*mode == '#') | |
1721 | mode++; | |
1722 | else | |
9e353e3b | 1723 | { |
ee518936 NIS |
1724 | imode = PerlIOUnix_oflags(mode); |
1725 | perm = 0666; | |
1726 | } | |
1727 | if (imode != -1) | |
1728 | { | |
1729 | fd = PerlLIO_open3(path,imode,perm); | |
9e353e3b NIS |
1730 | } |
1731 | } | |
ee518936 | 1732 | if (fd >= 0) |
9e353e3b | 1733 | { |
ee518936 NIS |
1734 | PerlIOUnix *s; |
1735 | if (*mode == 'I') | |
1736 | mode++; | |
1737 | if (!f) | |
9e353e3b | 1738 | { |
ee518936 | 1739 | f = PerlIO_allocate(aTHX); |
f6c77cf1 | 1740 | s = PerlIOSelf(PerlIO_push(aTHX_ f,self,mode,PerlIOArg),PerlIOUnix); |
ee518936 NIS |
1741 | } |
1742 | else | |
1743 | s = PerlIOSelf(f,PerlIOUnix); | |
1744 | s->fd = fd; | |
1745 | s->oflags = imode; | |
1746 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1747 | return f; | |
1748 | } | |
1749 | else | |
1750 | { | |
1751 | if (f) | |
1752 | { | |
1753 | /* FIXME: pop layers ??? */ | |
9e353e3b | 1754 | } |
ee518936 | 1755 | return NULL; |
9e353e3b | 1756 | } |
9e353e3b NIS |
1757 | } |
1758 | ||
1759 | SSize_t | |
1760 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
1761 | { | |
adb71456 | 1762 | dTHX; |
9e353e3b | 1763 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 NIS |
1764 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1765 | return 0; | |
9e353e3b NIS |
1766 | while (1) |
1767 | { | |
00b02797 | 1768 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 1769 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1770 | { |
1771 | if (len < 0) | |
1772 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1773 | else if (len == 0 && count != 0) | |
1774 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1775 | return len; | |
1776 | } | |
0a8e0eff | 1777 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1778 | } |
1779 | } | |
1780 | ||
1781 | SSize_t | |
1782 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
1783 | { | |
adb71456 | 1784 | dTHX; |
9e353e3b NIS |
1785 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1786 | while (1) | |
1787 | { | |
00b02797 | 1788 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 1789 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1790 | { |
1791 | if (len < 0) | |
1792 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1793 | return len; | |
1794 | } | |
0a8e0eff | 1795 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1796 | } |
1797 | } | |
1798 | ||
1799 | IV | |
1800 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
1801 | { | |
adb71456 | 1802 | dTHX; |
00b02797 | 1803 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 1804 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
1805 | return (new == (Off_t) -1) ? -1 : 0; |
1806 | } | |
1807 | ||
1808 | Off_t | |
1809 | PerlIOUnix_tell(PerlIO *f) | |
1810 | { | |
adb71456 | 1811 | dTHX; |
766a733e | 1812 | Off_t posn = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
00b02797 | 1813 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
1814 | } |
1815 | ||
1816 | IV | |
1817 | PerlIOUnix_close(PerlIO *f) | |
1818 | { | |
adb71456 | 1819 | dTHX; |
9e353e3b NIS |
1820 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1821 | int code = 0; | |
00b02797 | 1822 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
1823 | { |
1824 | if (errno != EINTR) | |
1825 | { | |
1826 | code = -1; | |
1827 | break; | |
1828 | } | |
0a8e0eff | 1829 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1830 | } |
1831 | if (code == 0) | |
1832 | { | |
1833 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
1834 | } | |
1835 | return code; | |
1836 | } | |
1837 | ||
1838 | PerlIO_funcs PerlIO_unix = { | |
1839 | "unix", | |
1840 | sizeof(PerlIOUnix), | |
f5b9d040 | 1841 | PERLIO_K_RAW, |
4b803d04 | 1842 | PerlIOUnix_pushed, |
06da4f11 | 1843 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
1844 | PerlIOUnix_open, |
1845 | NULL, | |
1846 | PerlIOUnix_fileno, | |
9e353e3b NIS |
1847 | PerlIOUnix_read, |
1848 | PerlIOBase_unread, | |
1849 | PerlIOUnix_write, | |
1850 | PerlIOUnix_seek, | |
1851 | PerlIOUnix_tell, | |
1852 | PerlIOUnix_close, | |
76ced9ad NIS |
1853 | PerlIOBase_noop_ok, /* flush */ |
1854 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
1855 | PerlIOBase_eof, |
1856 | PerlIOBase_error, | |
1857 | PerlIOBase_clearerr, | |
1858 | PerlIOBase_setlinebuf, | |
1859 | NULL, /* get_base */ | |
1860 | NULL, /* get_bufsiz */ | |
1861 | NULL, /* get_ptr */ | |
1862 | NULL, /* get_cnt */ | |
1863 | NULL, /* set_ptrcnt */ | |
1864 | }; | |
1865 | ||
1866 | /*--------------------------------------------------------------------------------------*/ | |
1867 | /* stdio as a layer */ | |
1868 | ||
1869 | typedef struct | |
1870 | { | |
1871 | struct _PerlIO base; | |
1872 | FILE * stdio; /* The stream */ | |
1873 | } PerlIOStdio; | |
1874 | ||
1875 | IV | |
1876 | PerlIOStdio_fileno(PerlIO *f) | |
1877 | { | |
adb71456 | 1878 | dTHX; |
eaf8b698 | 1879 | return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1880 | } |
1881 | ||
766a733e | 1882 | char * |
f5b9d040 NIS |
1883 | PerlIOStdio_mode(const char *mode,char *tmode) |
1884 | { | |
766a733e NIS |
1885 | char *ret = tmode; |
1886 | while (*mode) | |
1887 | { | |
1888 | *tmode++ = *mode++; | |
1889 | } | |
f5b9d040 NIS |
1890 | if (O_BINARY != O_TEXT) |
1891 | { | |
f5b9d040 | 1892 | *tmode++ = 'b'; |
f5b9d040 | 1893 | } |
766a733e | 1894 | *tmode = '\0'; |
f5b9d040 NIS |
1895 | return ret; |
1896 | } | |
9e353e3b | 1897 | |
4b803d04 NIS |
1898 | /* This isn't used yet ... */ |
1899 | IV | |
e3f3bf95 | 1900 | PerlIOStdio_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 1901 | { |
b86471a1 | 1902 | dTHX; |
4b803d04 NIS |
1903 | if (*PerlIONext(f)) |
1904 | { | |
1905 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1906 | char tmode[8]; | |
1907 | FILE *stdio = PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)),mode = PerlIOStdio_mode(mode,tmode)); | |
1908 | if (stdio) | |
1909 | s->stdio = stdio; | |
1910 | else | |
1911 | return -1; | |
1912 | } | |
e3f3bf95 | 1913 | return PerlIOBase_pushed(f,mode,arg); |
4b803d04 NIS |
1914 | } |
1915 | ||
9e353e3b NIS |
1916 | #undef PerlIO_importFILE |
1917 | PerlIO * | |
1918 | PerlIO_importFILE(FILE *stdio, int fl) | |
1919 | { | |
5f1a76d0 | 1920 | dTHX; |
9e353e3b NIS |
1921 | PerlIO *f = NULL; |
1922 | if (stdio) | |
1923 | { | |
e3f3bf95 | 1924 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"r+",Nullsv),PerlIOStdio); |
9e353e3b NIS |
1925 | s->stdio = stdio; |
1926 | } | |
1927 | return f; | |
1928 | } | |
1929 | ||
1930 | PerlIO * | |
e3f3bf95 | 1931 | PerlIOStdio_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 1932 | { |
ee518936 NIS |
1933 | char tmode[8]; |
1934 | if (f) | |
9e353e3b | 1935 | { |
ee518936 NIS |
1936 | char *path = SvPV_nolen(*args); |
1937 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1938 | FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); | |
1939 | if (!s->stdio) | |
1940 | return NULL; | |
1941 | s->stdio = stdio; | |
1942 | return f; | |
9e353e3b | 1943 | } |
ee518936 NIS |
1944 | else |
1945 | { | |
1946 | if (narg > 0) | |
1947 | { | |
1948 | char *path = SvPV_nolen(*args); | |
1949 | if (*mode == '#') | |
1950 | { | |
1951 | mode++; | |
1952 | fd = PerlLIO_open3(path,imode,perm); | |
1953 | } | |
1954 | else | |
1955 | { | |
1956 | FILE *stdio = PerlSIO_fopen(path,mode); | |
1957 | if (stdio) | |
1958 | { | |
a999f61b | 1959 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)), self, |
f6c77cf1 | 1960 | (mode = PerlIOStdio_mode(mode,tmode)),PerlIOArg), |
ee518936 NIS |
1961 | PerlIOStdio); |
1962 | s->stdio = stdio; | |
1963 | } | |
1964 | return f; | |
1965 | } | |
1966 | } | |
1967 | if (fd >= 0) | |
1968 | { | |
1969 | FILE *stdio = NULL; | |
1970 | int init = 0; | |
1971 | if (*mode == 'I') | |
1972 | { | |
1973 | init = 1; | |
1974 | mode++; | |
1975 | } | |
1976 | if (init) | |
1977 | { | |
1978 | switch(fd) | |
1979 | { | |
1980 | case 0: | |
1981 | stdio = PerlSIO_stdin; | |
1982 | break; | |
1983 | case 1: | |
1984 | stdio = PerlSIO_stdout; | |
1985 | break; | |
1986 | case 2: | |
1987 | stdio = PerlSIO_stderr; | |
1988 | break; | |
1989 | } | |
1990 | } | |
1991 | else | |
1992 | { | |
1993 | stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); | |
1994 | } | |
1995 | if (stdio) | |
1996 | { | |
f6c77cf1 | 1997 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),self,mode,PerlIOArg),PerlIOStdio); |
ee518936 NIS |
1998 | s->stdio = stdio; |
1999 | return f; | |
2000 | } | |
2001 | } | |
2002 | } | |
2003 | return NULL; | |
9e353e3b NIS |
2004 | } |
2005 | ||
2006 | SSize_t | |
2007 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
2008 | { | |
adb71456 | 2009 | dTHX; |
9e353e3b | 2010 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f | 2011 | SSize_t got = 0; |
9e353e3b NIS |
2012 | if (count == 1) |
2013 | { | |
2014 | STDCHAR *buf = (STDCHAR *) vbuf; | |
2015 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
2016 | * Linux's stdio does not do that for fread() | |
2017 | */ | |
eaf8b698 | 2018 | int ch = PerlSIO_fgetc(s); |
9e353e3b NIS |
2019 | if (ch != EOF) |
2020 | { | |
2021 | *buf = ch; | |
c7fc522f | 2022 | got = 1; |
9e353e3b | 2023 | } |
9e353e3b | 2024 | } |
c7fc522f | 2025 | else |
eaf8b698 | 2026 | got = PerlSIO_fread(vbuf,1,count,s); |
c7fc522f | 2027 | return got; |
9e353e3b NIS |
2028 | } |
2029 | ||
2030 | SSize_t | |
2031 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2032 | { | |
adb71456 | 2033 | dTHX; |
9e353e3b NIS |
2034 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
2035 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
2036 | SSize_t unread = 0; | |
2037 | while (count > 0) | |
2038 | { | |
2039 | int ch = *buf-- & 0xff; | |
eaf8b698 | 2040 | if (PerlSIO_ungetc(ch,s) != ch) |
9e353e3b NIS |
2041 | break; |
2042 | unread++; | |
2043 | count--; | |
2044 | } | |
2045 | return unread; | |
2046 | } | |
2047 | ||
2048 | SSize_t | |
2049 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
2050 | { | |
adb71456 | 2051 | dTHX; |
eaf8b698 | 2052 | return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2053 | } |
2054 | ||
2055 | IV | |
2056 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
2057 | { | |
adb71456 | 2058 | dTHX; |
c7fc522f | 2059 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2060 | return PerlSIO_fseek(stdio,offset,whence); |
9e353e3b NIS |
2061 | } |
2062 | ||
2063 | Off_t | |
2064 | PerlIOStdio_tell(PerlIO *f) | |
2065 | { | |
adb71456 | 2066 | dTHX; |
c7fc522f | 2067 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2068 | return PerlSIO_ftell(stdio); |
9e353e3b NIS |
2069 | } |
2070 | ||
2071 | IV | |
2072 | PerlIOStdio_close(PerlIO *f) | |
2073 | { | |
adb71456 | 2074 | dTHX; |
405b3941 | 2075 | #ifdef HAS_SOCKS5_INIT |
cf829ab0 | 2076 | int optval, optlen = sizeof(int); |
8e4bc33b | 2077 | #endif |
3789aae2 | 2078 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 | 2079 | return( |
405b3941 | 2080 | #ifdef HAS_SOCKS5_INIT |
a4d3c1d3 | 2081 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ? |
eaf8b698 | 2082 | PerlSIO_fclose(stdio) : |
8e4bc33b YST |
2083 | close(PerlIO_fileno(f)) |
2084 | #else | |
2085 | PerlSIO_fclose(stdio) | |
2086 | #endif | |
2087 | ); | |
2088 | ||
9e353e3b NIS |
2089 | } |
2090 | ||
2091 | IV | |
2092 | PerlIOStdio_flush(PerlIO *f) | |
2093 | { | |
adb71456 | 2094 | dTHX; |
9e353e3b | 2095 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 NIS |
2096 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
2097 | { | |
eaf8b698 | 2098 | return PerlSIO_fflush(stdio); |
88b61e10 NIS |
2099 | } |
2100 | else | |
2101 | { | |
2102 | #if 0 | |
2103 | /* FIXME: This discards ungetc() and pre-read stuff which is | |
2104 | not right if this is just a "sync" from a layer above | |
2105 | Suspect right design is to do _this_ but not have layer above | |
2106 | flush this layer read-to-read | |
2107 | */ | |
2108 | /* Not writeable - sync by attempting a seek */ | |
2109 | int err = errno; | |
eaf8b698 | 2110 | if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
88b61e10 NIS |
2111 | errno = err; |
2112 | #endif | |
2113 | } | |
2114 | return 0; | |
9e353e3b NIS |
2115 | } |
2116 | ||
2117 | IV | |
06da4f11 NIS |
2118 | PerlIOStdio_fill(PerlIO *f) |
2119 | { | |
adb71456 | 2120 | dTHX; |
06da4f11 NIS |
2121 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
2122 | int c; | |
3789aae2 NIS |
2123 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
2124 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
2125 | { | |
eaf8b698 | 2126 | if (PerlSIO_fflush(stdio) != 0) |
3789aae2 NIS |
2127 | return EOF; |
2128 | } | |
eaf8b698 NIS |
2129 | c = PerlSIO_fgetc(stdio); |
2130 | if (c == EOF || PerlSIO_ungetc(c,stdio) != c) | |
06da4f11 NIS |
2131 | return EOF; |
2132 | return 0; | |
2133 | } | |
2134 | ||
2135 | IV | |
9e353e3b NIS |
2136 | PerlIOStdio_eof(PerlIO *f) |
2137 | { | |
adb71456 | 2138 | dTHX; |
eaf8b698 | 2139 | return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2140 | } |
2141 | ||
2142 | IV | |
2143 | PerlIOStdio_error(PerlIO *f) | |
2144 | { | |
adb71456 | 2145 | dTHX; |
eaf8b698 | 2146 | return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2147 | } |
2148 | ||
2149 | void | |
2150 | PerlIOStdio_clearerr(PerlIO *f) | |
2151 | { | |
adb71456 | 2152 | dTHX; |
eaf8b698 | 2153 | PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
2154 | } |
2155 | ||
2156 | void | |
2157 | PerlIOStdio_setlinebuf(PerlIO *f) | |
2158 | { | |
adb71456 | 2159 | dTHX; |
9e353e3b | 2160 | #ifdef HAS_SETLINEBUF |
eaf8b698 | 2161 | PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b | 2162 | #else |
eaf8b698 | 2163 | PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b NIS |
2164 | #endif |
2165 | } | |
2166 | ||
2167 | #ifdef FILE_base | |
2168 | STDCHAR * | |
2169 | PerlIOStdio_get_base(PerlIO *f) | |
2170 | { | |
adb71456 | 2171 | dTHX; |
9e353e3b | 2172 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2173 | return PerlSIO_get_base(stdio); |
9e353e3b NIS |
2174 | } |
2175 | ||
2176 | Size_t | |
2177 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
2178 | { | |
adb71456 | 2179 | dTHX; |
9e353e3b | 2180 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2181 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b NIS |
2182 | } |
2183 | #endif | |
2184 | ||
2185 | #ifdef USE_STDIO_PTR | |
2186 | STDCHAR * | |
2187 | PerlIOStdio_get_ptr(PerlIO *f) | |
2188 | { | |
adb71456 | 2189 | dTHX; |
9e353e3b | 2190 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2191 | return PerlSIO_get_ptr(stdio); |
9e353e3b NIS |
2192 | } |
2193 | ||
2194 | SSize_t | |
2195 | PerlIOStdio_get_cnt(PerlIO *f) | |
2196 | { | |
adb71456 | 2197 | dTHX; |
9e353e3b | 2198 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 2199 | return PerlSIO_get_cnt(stdio); |
9e353e3b NIS |
2200 | } |
2201 | ||
2202 | void | |
2203 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
2204 | { | |
adb71456 | 2205 | dTHX; |
9e353e3b NIS |
2206 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
2207 | if (ptr != NULL) | |
2208 | { | |
2209 | #ifdef STDIO_PTR_LVALUE | |
eaf8b698 | 2210 | PerlSIO_set_ptr(stdio,ptr); |
9e353e3b | 2211 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
eaf8b698 | 2212 | if (PerlSIO_get_cnt(stdio) != (cnt)) |
9e353e3b NIS |
2213 | { |
2214 | dTHX; | |
eaf8b698 | 2215 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
9e353e3b NIS |
2216 | } |
2217 | #endif | |
2218 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
2219 | /* Setting ptr _does_ change cnt - we are done */ | |
2220 | return; | |
2221 | #endif | |
2222 | #else /* STDIO_PTR_LVALUE */ | |
eaf8b698 | 2223 | PerlProc_abort(); |
9e353e3b NIS |
2224 | #endif /* STDIO_PTR_LVALUE */ |
2225 | } | |
2226 | /* Now (or only) set cnt */ | |
2227 | #ifdef STDIO_CNT_LVALUE | |
eaf8b698 | 2228 | PerlSIO_set_cnt(stdio,cnt); |
9e353e3b NIS |
2229 | #else /* STDIO_CNT_LVALUE */ |
2230 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
eaf8b698 | 2231 | PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt)); |
9e353e3b | 2232 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
eaf8b698 | 2233 | PerlProc_abort(); |
9e353e3b NIS |
2234 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
2235 | #endif /* STDIO_CNT_LVALUE */ | |
2236 | } | |
2237 | ||
2238 | #endif | |
2239 | ||
2240 | PerlIO_funcs PerlIO_stdio = { | |
2241 | "stdio", | |
2242 | sizeof(PerlIOStdio), | |
f5b9d040 | 2243 | PERLIO_K_BUFFERED, |
06da4f11 NIS |
2244 | PerlIOBase_pushed, |
2245 | PerlIOBase_noop_ok, | |
e3f3bf95 NIS |
2246 | PerlIOStdio_open, |
2247 | NULL, | |
2248 | PerlIOStdio_fileno, | |
9e353e3b NIS |
2249 | PerlIOStdio_read, |
2250 | PerlIOStdio_unread, | |
2251 | PerlIOStdio_write, | |
2252 | PerlIOStdio_seek, | |
2253 | PerlIOStdio_tell, | |
2254 | PerlIOStdio_close, | |
2255 | PerlIOStdio_flush, | |
06da4f11 | 2256 | PerlIOStdio_fill, |
9e353e3b NIS |
2257 | PerlIOStdio_eof, |
2258 | PerlIOStdio_error, | |
2259 | PerlIOStdio_clearerr, | |
2260 | PerlIOStdio_setlinebuf, | |
2261 | #ifdef FILE_base | |
2262 | PerlIOStdio_get_base, | |
2263 | PerlIOStdio_get_bufsiz, | |
2264 | #else | |
2265 | NULL, | |
2266 | NULL, | |
2267 | #endif | |
2268 | #ifdef USE_STDIO_PTR | |
2269 | PerlIOStdio_get_ptr, | |
2270 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 2271 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
2272 | PerlIOStdio_set_ptrcnt |
2273 | #else /* STDIO_PTR_LVALUE */ | |
2274 | NULL | |
2275 | #endif /* STDIO_PTR_LVALUE */ | |
2276 | #else /* USE_STDIO_PTR */ | |
2277 | NULL, | |
2278 | NULL, | |
2279 | NULL | |
2280 | #endif /* USE_STDIO_PTR */ | |
2281 | }; | |
2282 | ||
2283 | #undef PerlIO_exportFILE | |
2284 | FILE * | |
2285 | PerlIO_exportFILE(PerlIO *f, int fl) | |
2286 | { | |
f7e7eb72 | 2287 | FILE *stdio; |
9e353e3b | 2288 | PerlIO_flush(f); |
f7e7eb72 NIS |
2289 | stdio = fdopen(PerlIO_fileno(f),"r+"); |
2290 | if (stdio) | |
2291 | { | |
a999f61b | 2292 | dTHX; |
e3f3bf95 | 2293 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ f,&PerlIO_stdio,"r+",Nullsv),PerlIOStdio); |
f7e7eb72 NIS |
2294 | s->stdio = stdio; |
2295 | } | |
2296 | return stdio; | |
9e353e3b NIS |
2297 | } |
2298 | ||
2299 | #undef PerlIO_findFILE | |
2300 | FILE * | |
2301 | PerlIO_findFILE(PerlIO *f) | |
2302 | { | |
f7e7eb72 NIS |
2303 | PerlIOl *l = *f; |
2304 | while (l) | |
2305 | { | |
2306 | if (l->tab == &PerlIO_stdio) | |
2307 | { | |
2308 | PerlIOStdio *s = PerlIOSelf(&l,PerlIOStdio); | |
2309 | return s->stdio; | |
2310 | } | |
2311 | l = *PerlIONext(&l); | |
2312 | } | |
9e353e3b NIS |
2313 | return PerlIO_exportFILE(f,0); |
2314 | } | |
2315 | ||
2316 | #undef PerlIO_releaseFILE | |
2317 | void | |
2318 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
2319 | { | |
2320 | } | |
2321 | ||
2322 | /*--------------------------------------------------------------------------------------*/ | |
2323 | /* perlio buffer layer */ | |
2324 | ||
5e2ab84b | 2325 | IV |
e3f3bf95 | 2326 | PerlIOBuf_pushed(PerlIO *f, const char *mode, SV *arg) |
5e2ab84b NIS |
2327 | { |
2328 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1f474064 NIS |
2329 | int fd = PerlIO_fileno(f); |
2330 | Off_t posn; | |
8c0134a8 | 2331 | dTHX; |
1f474064 NIS |
2332 | if (fd >= 0 && PerlLIO_isatty(fd)) |
2333 | { | |
2334 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF; | |
2335 | } | |
2336 | posn = PerlIO_tell(PerlIONext(f)); | |
2337 | if (posn != (Off_t) -1) | |
2338 | { | |
2339 | b->posn = posn; | |
2340 | } | |
e3f3bf95 | 2341 | return PerlIOBase_pushed(f,mode,arg); |
5e2ab84b NIS |
2342 | } |
2343 | ||
9e353e3b | 2344 | PerlIO * |
e3f3bf95 | 2345 | PerlIOBuf_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
9e353e3b | 2346 | { |
6f9d8c32 NIS |
2347 | if (f) |
2348 | { | |
ee518936 | 2349 | PerlIO *next = PerlIONext(f); |
e3f3bf95 NIS |
2350 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-2, PerlIOBase(next)->tab); |
2351 | next = (*tab->Open)(aTHX_ tab, layers, n-2, mode,fd,imode,perm,next,narg,args); | |
f6c77cf1 | 2352 | if (!next || (*PerlIOBase(f)->tab->Pushed)(f,mode,PerlIOArg) != 0) |
c7fc522f | 2353 | { |
ee518936 | 2354 | return NULL; |
a4d3c1d3 | 2355 | } |
6f9d8c32 | 2356 | } |
ee518936 | 2357 | else |
9e353e3b | 2358 | { |
e3f3bf95 | 2359 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-2, PerlIO_default_btm()); |
ee518936 NIS |
2360 | int init = 0; |
2361 | if (*mode == 'I') | |
2362 | { | |
2363 | init = 1; | |
2364 | mode++; | |
2365 | } | |
e3f3bf95 | 2366 | f = (*tab->Open)(aTHX_ tab, layers, n-2, mode,fd,imode,perm,NULL,narg,args); |
ee518936 NIS |
2367 | if (f) |
2368 | { | |
f6c77cf1 | 2369 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(aTHX_ f,self,mode,PerlIOArg),PerlIOBuf); |
ee518936 NIS |
2370 | fd = PerlIO_fileno(f); |
2371 | #if O_BINARY != O_TEXT | |
2372 | /* do something about failing setmode()? --jhi */ | |
2373 | PerlLIO_setmode(fd , O_BINARY); | |
2374 | #endif | |
2375 | if (init && fd == 2) | |
2376 | { | |
2377 | /* Initial stderr is unbuffered */ | |
2378 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
2379 | } | |
2380 | } | |
9e353e3b NIS |
2381 | } |
2382 | return f; | |
2383 | } | |
2384 | ||
9e353e3b NIS |
2385 | /* This "flush" is akin to sfio's sync in that it handles files in either |
2386 | read or write state | |
2387 | */ | |
2388 | IV | |
2389 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 2390 | { |
9e353e3b NIS |
2391 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2392 | int code = 0; | |
2393 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2394 | { | |
2395 | /* write() the buffer */ | |
a5262162 | 2396 | STDCHAR *buf = b->buf; |
33af2bc7 | 2397 | STDCHAR *p = buf; |
3789aae2 | 2398 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
2399 | while (p < b->ptr) |
2400 | { | |
4b803d04 | 2401 | SSize_t count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b NIS |
2402 | if (count > 0) |
2403 | { | |
2404 | p += count; | |
2405 | } | |
3789aae2 | 2406 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b NIS |
2407 | { |
2408 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2409 | code = -1; | |
2410 | break; | |
2411 | } | |
2412 | } | |
33af2bc7 | 2413 | b->posn += (p - buf); |
9e353e3b NIS |
2414 | } |
2415 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 2416 | { |
33af2bc7 | 2417 | STDCHAR *buf = PerlIO_get_base(f); |
9e353e3b | 2418 | /* Note position change */ |
33af2bc7 | 2419 | b->posn += (b->ptr - buf); |
9e353e3b NIS |
2420 | if (b->ptr < b->end) |
2421 | { | |
2422 | /* We did not consume all of it */ | |
2423 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
2424 | { | |
2425 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2426 | } | |
2427 | } | |
6f9d8c32 | 2428 | } |
9e353e3b NIS |
2429 | b->ptr = b->end = b->buf; |
2430 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
88b61e10 | 2431 | /* FIXME: Is this right for read case ? */ |
9e353e3b NIS |
2432 | if (PerlIO_flush(PerlIONext(f)) != 0) |
2433 | code = -1; | |
2434 | return code; | |
6f9d8c32 NIS |
2435 | } |
2436 | ||
06da4f11 NIS |
2437 | IV |
2438 | PerlIOBuf_fill(PerlIO *f) | |
2439 | { | |
2440 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
88b61e10 | 2441 | PerlIO *n = PerlIONext(f); |
06da4f11 | 2442 | SSize_t avail; |
88b61e10 NIS |
2443 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
2444 | pre-read data in stdio buffer to be discarded | |
2445 | but this is too simplistic - as it skips _our_ hosekeeping | |
2446 | and breaks tell tests. | |
2447 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2448 | { | |
2449 | } | |
2450 | */ | |
06da4f11 NIS |
2451 | if (PerlIO_flush(f) != 0) |
2452 | return -1; | |
88b61e10 | 2453 | |
a5262162 NIS |
2454 | if (!b->buf) |
2455 | PerlIO_get_base(f); /* allocate via vtable */ | |
2456 | ||
2457 | b->ptr = b->end = b->buf; | |
88b61e10 NIS |
2458 | if (PerlIO_fast_gets(n)) |
2459 | { | |
2460 | /* Layer below is also buffered | |
2461 | * We do _NOT_ want to call its ->Read() because that will loop | |
2462 | * till it gets what we asked for which may hang on a pipe etc. | |
2463 | * Instead take anything it has to hand, or ask it to fill _once_. | |
2464 | */ | |
2465 | avail = PerlIO_get_cnt(n); | |
2466 | if (avail <= 0) | |
2467 | { | |
2468 | avail = PerlIO_fill(n); | |
2469 | if (avail == 0) | |
2470 | avail = PerlIO_get_cnt(n); | |
2471 | else | |
2472 | { | |
2473 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
2474 | avail = 0; | |
2475 | } | |
2476 | } | |
2477 | if (avail > 0) | |
2478 | { | |
2479 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
2480 | SSize_t cnt = avail; | |
2481 | if (avail > b->bufsiz) | |
2482 | avail = b->bufsiz; | |
2483 | Copy(ptr,b->buf,avail,STDCHAR); | |
2484 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); | |
2485 | } | |
2486 | } | |
2487 | else | |
2488 | { | |
2489 | avail = PerlIO_read(n,b->ptr,b->bufsiz); | |
2490 | } | |
06da4f11 NIS |
2491 | if (avail <= 0) |
2492 | { | |
2493 | if (avail == 0) | |
2494 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
2495 | else | |
2496 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2497 | return -1; | |
2498 | } | |
a5262162 | 2499 | b->end = b->buf+avail; |
06da4f11 NIS |
2500 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2501 | return 0; | |
2502 | } | |
2503 | ||
6f9d8c32 | 2504 | SSize_t |
9e353e3b | 2505 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 2506 | { |
99efab12 | 2507 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
2508 | if (f) |
2509 | { | |
9e353e3b | 2510 | if (!b->ptr) |
06da4f11 | 2511 | PerlIO_get_base(f); |
f6c77cf1 | 2512 | return PerlIOBase_read(f,vbuf,count); |
6f9d8c32 NIS |
2513 | } |
2514 | return 0; | |
2515 | } | |
2516 | ||
9e353e3b NIS |
2517 | SSize_t |
2518 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2519 | { |
9e353e3b NIS |
2520 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2521 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2522 | SSize_t unread = 0; | |
2523 | SSize_t avail; | |
9e353e3b NIS |
2524 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2525 | PerlIO_flush(f); | |
06da4f11 NIS |
2526 | if (!b->buf) |
2527 | PerlIO_get_base(f); | |
9e353e3b NIS |
2528 | if (b->buf) |
2529 | { | |
2530 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2531 | { | |
2532 | avail = (b->ptr - b->buf); | |
9e353e3b NIS |
2533 | } |
2534 | else | |
2535 | { | |
2536 | avail = b->bufsiz; | |
5e2ab84b NIS |
2537 | b->end = b->buf + avail; |
2538 | b->ptr = b->end; | |
2539 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2540 | b->posn -= b->bufsiz; | |
9e353e3b | 2541 | } |
5e2ab84b NIS |
2542 | if (avail > (SSize_t) count) |
2543 | avail = count; | |
9e353e3b NIS |
2544 | if (avail > 0) |
2545 | { | |
5e2ab84b | 2546 | b->ptr -= avail; |
9e353e3b NIS |
2547 | buf -= avail; |
2548 | if (buf != b->ptr) | |
2549 | { | |
88b61e10 | 2550 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2551 | } |
2552 | count -= avail; | |
2553 | unread += avail; | |
2554 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
2555 | } | |
2556 | } | |
2557 | return unread; | |
760ac839 LW |
2558 | } |
2559 | ||
9e353e3b NIS |
2560 | SSize_t |
2561 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2562 | { |
9e353e3b NIS |
2563 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2564 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
2565 | Size_t written = 0; | |
2566 | if (!b->buf) | |
06da4f11 | 2567 | PerlIO_get_base(f); |
9e353e3b NIS |
2568 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2569 | return 0; | |
2570 | while (count > 0) | |
2571 | { | |
2572 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
2573 | if ((SSize_t) count < avail) | |
2574 | avail = count; | |
2575 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2576 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2577 | { | |
2578 | while (avail > 0) | |
2579 | { | |
2580 | int ch = *buf++; | |
2581 | *(b->ptr)++ = ch; | |
2582 | count--; | |
2583 | avail--; | |
2584 | written++; | |
2585 | if (ch == '\n') | |
2586 | { | |
2587 | PerlIO_flush(f); | |
2588 | break; | |
2589 | } | |
2590 | } | |
2591 | } | |
2592 | else | |
2593 | { | |
2594 | if (avail) | |
2595 | { | |
88b61e10 | 2596 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2597 | count -= avail; |
2598 | buf += avail; | |
2599 | written += avail; | |
2600 | b->ptr += avail; | |
2601 | } | |
2602 | } | |
2603 | if (b->ptr >= (b->buf + b->bufsiz)) | |
2604 | PerlIO_flush(f); | |
2605 | } | |
f5b9d040 NIS |
2606 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2607 | PerlIO_flush(f); | |
9e353e3b NIS |
2608 | return written; |
2609 | } | |
2610 | ||
2611 | IV | |
2612 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
2613 | { | |
5e2ab84b NIS |
2614 | IV code; |
2615 | if ((code = PerlIO_flush(f)) == 0) | |
9e353e3b | 2616 | { |
5e2ab84b | 2617 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
9e353e3b NIS |
2618 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2619 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
2620 | if (code == 0) | |
2621 | { | |
2622 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2623 | } | |
2624 | } | |
2625 | return code; | |
2626 | } | |
2627 | ||
2628 | Off_t | |
2629 | PerlIOBuf_tell(PerlIO *f) | |
2630 | { | |
2631 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2632 | Off_t posn = b->posn; | |
2633 | if (b->buf) | |
2634 | posn += (b->ptr - b->buf); | |
2635 | return posn; | |
2636 | } | |
2637 | ||
2638 | IV | |
2639 | PerlIOBuf_close(PerlIO *f) | |
2640 | { | |
5f1a76d0 | 2641 | dTHX; |
9e353e3b NIS |
2642 | IV code = PerlIOBase_close(f); |
2643 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2644 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 2645 | { |
5f1a76d0 | 2646 | PerlMemShared_free(b->buf); |
6f9d8c32 | 2647 | } |
9e353e3b NIS |
2648 | b->buf = NULL; |
2649 | b->ptr = b->end = b->buf; | |
2650 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2651 | return code; | |
760ac839 LW |
2652 | } |
2653 | ||
9e353e3b NIS |
2654 | STDCHAR * |
2655 | PerlIOBuf_get_ptr(PerlIO *f) | |
2656 | { | |
2657 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2658 | if (!b->buf) | |
06da4f11 | 2659 | PerlIO_get_base(f); |
9e353e3b NIS |
2660 | return b->ptr; |
2661 | } | |
2662 | ||
05d1247b | 2663 | SSize_t |
9e353e3b NIS |
2664 | PerlIOBuf_get_cnt(PerlIO *f) |
2665 | { | |
2666 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2667 | if (!b->buf) | |
06da4f11 | 2668 | PerlIO_get_base(f); |
9e353e3b NIS |
2669 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2670 | return (b->end - b->ptr); | |
2671 | return 0; | |
2672 | } | |
2673 | ||
2674 | STDCHAR * | |
2675 | PerlIOBuf_get_base(PerlIO *f) | |
2676 | { | |
2677 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2678 | if (!b->buf) | |
06da4f11 | 2679 | { |
5f1a76d0 | 2680 | dTHX; |
06da4f11 NIS |
2681 | if (!b->bufsiz) |
2682 | b->bufsiz = 4096; | |
5f1a76d0 | 2683 | b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR)); |
06da4f11 NIS |
2684 | if (!b->buf) |
2685 | { | |
2686 | b->buf = (STDCHAR *)&b->oneword; | |
2687 | b->bufsiz = sizeof(b->oneword); | |
2688 | } | |
2689 | b->ptr = b->buf; | |
2690 | b->end = b->ptr; | |
2691 | } | |
9e353e3b NIS |
2692 | return b->buf; |
2693 | } | |
2694 | ||
2695 | Size_t | |
2696 | PerlIOBuf_bufsiz(PerlIO *f) | |
2697 | { | |
2698 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2699 | if (!b->buf) | |
06da4f11 | 2700 | PerlIO_get_base(f); |
9e353e3b NIS |
2701 | return (b->end - b->buf); |
2702 | } | |
2703 | ||
2704 | void | |
05d1247b | 2705 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
2706 | { |
2707 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2708 | if (!b->buf) | |
06da4f11 | 2709 | PerlIO_get_base(f); |
9e353e3b NIS |
2710 | b->ptr = ptr; |
2711 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 2712 | { |
9e353e3b NIS |
2713 | dTHX; |
2714 | assert(PerlIO_get_cnt(f) == cnt); | |
2715 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 2716 | } |
9e353e3b | 2717 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
2718 | } |
2719 | ||
9e353e3b NIS |
2720 | PerlIO_funcs PerlIO_perlio = { |
2721 | "perlio", | |
2722 | sizeof(PerlIOBuf), | |
f5b9d040 | 2723 | PERLIO_K_BUFFERED, |
5e2ab84b | 2724 | PerlIOBuf_pushed, |
06da4f11 | 2725 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
2726 | PerlIOBuf_open, |
2727 | NULL, | |
2728 | PerlIOBase_fileno, | |
9e353e3b NIS |
2729 | PerlIOBuf_read, |
2730 | PerlIOBuf_unread, | |
2731 | PerlIOBuf_write, | |
2732 | PerlIOBuf_seek, | |
2733 | PerlIOBuf_tell, | |
2734 | PerlIOBuf_close, | |
2735 | PerlIOBuf_flush, | |
06da4f11 | 2736 | PerlIOBuf_fill, |
9e353e3b NIS |
2737 | PerlIOBase_eof, |
2738 | PerlIOBase_error, | |
2739 | PerlIOBase_clearerr, | |
f6c77cf1 | 2740 | PerlIOBase_setlinebuf, |
9e353e3b NIS |
2741 | PerlIOBuf_get_base, |
2742 | PerlIOBuf_bufsiz, | |
2743 | PerlIOBuf_get_ptr, | |
2744 | PerlIOBuf_get_cnt, | |
2745 | PerlIOBuf_set_ptrcnt, | |
2746 | }; | |
2747 | ||
66ecd56b | 2748 | /*--------------------------------------------------------------------------------------*/ |
5e2ab84b NIS |
2749 | /* Temp layer to hold unread chars when cannot do it any other way */ |
2750 | ||
2751 | IV | |
2752 | PerlIOPending_fill(PerlIO *f) | |
2753 | { | |
2754 | /* Should never happen */ | |
2755 | PerlIO_flush(f); | |
2756 | return 0; | |
2757 | } | |
2758 | ||
2759 | IV | |
2760 | PerlIOPending_close(PerlIO *f) | |
2761 | { | |
2762 | /* A tad tricky - flush pops us, then we close new top */ | |
2763 | PerlIO_flush(f); | |
2764 | return PerlIO_close(f); | |
2765 | } | |
2766 | ||
2767 | IV | |
2768 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) | |
2769 | { | |
2770 | /* A tad tricky - flush pops us, then we seek new top */ | |
2771 | PerlIO_flush(f); | |
2772 | return PerlIO_seek(f,offset,whence); | |
2773 | } | |
2774 | ||
2775 | ||
2776 | IV | |
2777 | PerlIOPending_flush(PerlIO *f) | |
2778 | { | |
a999f61b | 2779 | dTHX; |
5e2ab84b NIS |
2780 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2781 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
2782 | { | |
5f1a76d0 | 2783 | PerlMemShared_free(b->buf); |
5e2ab84b NIS |
2784 | b->buf = NULL; |
2785 | } | |
a999f61b | 2786 | PerlIO_pop(aTHX_ f); |
5e2ab84b NIS |
2787 | return 0; |
2788 | } | |
2789 | ||
2790 | void | |
2791 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
2792 | { | |
2793 | if (cnt <= 0) | |
2794 | { | |
2795 | PerlIO_flush(f); | |
2796 | } | |
2797 | else | |
2798 | { | |
2799 | PerlIOBuf_set_ptrcnt(f,ptr,cnt); | |
2800 | } | |
2801 | } | |
2802 | ||
2803 | IV | |
e3f3bf95 | 2804 | PerlIOPending_pushed(PerlIO *f,const char *mode,SV *arg) |
5e2ab84b | 2805 | { |
e3f3bf95 | 2806 | IV code = PerlIOBase_pushed(f,mode,arg); |
5e2ab84b NIS |
2807 | PerlIOl *l = PerlIOBase(f); |
2808 | /* Our PerlIO_fast_gets must match what we are pushed on, | |
2809 | or sv_gets() etc. get muddled when it changes mid-string | |
2810 | when we auto-pop. | |
2811 | */ | |
72e44f29 NIS |
2812 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) | |
2813 | (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8)); | |
5e2ab84b NIS |
2814 | return code; |
2815 | } | |
2816 | ||
2817 | SSize_t | |
2818 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) | |
2819 | { | |
2820 | SSize_t avail = PerlIO_get_cnt(f); | |
2821 | SSize_t got = 0; | |
2822 | if (count < avail) | |
2823 | avail = count; | |
2824 | if (avail > 0) | |
2825 | got = PerlIOBuf_read(f,vbuf,avail); | |
1f474064 NIS |
2826 | if (got >= 0 && got < count) |
2827 | { | |
2828 | SSize_t more = PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got); | |
2829 | if (more >= 0 || got == 0) | |
2830 | got += more; | |
2831 | } | |
5e2ab84b NIS |
2832 | return got; |
2833 | } | |
2834 | ||
5e2ab84b NIS |
2835 | PerlIO_funcs PerlIO_pending = { |
2836 | "pending", | |
2837 | sizeof(PerlIOBuf), | |
2838 | PERLIO_K_BUFFERED, | |
5e2ab84b NIS |
2839 | PerlIOPending_pushed, |
2840 | PerlIOBase_noop_ok, | |
e3f3bf95 NIS |
2841 | NULL, |
2842 | NULL, | |
2843 | PerlIOBase_fileno, | |
5e2ab84b NIS |
2844 | PerlIOPending_read, |
2845 | PerlIOBuf_unread, | |
2846 | PerlIOBuf_write, | |
2847 | PerlIOPending_seek, | |
2848 | PerlIOBuf_tell, | |
2849 | PerlIOPending_close, | |
2850 | PerlIOPending_flush, | |
2851 | PerlIOPending_fill, | |
2852 | PerlIOBase_eof, | |
2853 | PerlIOBase_error, | |
2854 | PerlIOBase_clearerr, | |
f6c77cf1 | 2855 | PerlIOBase_setlinebuf, |
5e2ab84b NIS |
2856 | PerlIOBuf_get_base, |
2857 | PerlIOBuf_bufsiz, | |
2858 | PerlIOBuf_get_ptr, | |
2859 | PerlIOBuf_get_cnt, | |
2860 | PerlIOPending_set_ptrcnt, | |
2861 | }; | |
2862 | ||
2863 | ||
2864 | ||
2865 | /*--------------------------------------------------------------------------------------*/ | |
99efab12 NIS |
2866 | /* crlf - translation |
2867 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries | |
60382766 | 2868 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 | 2869 | On write translate "\n" to CR,LF |
66ecd56b NIS |
2870 | */ |
2871 | ||
99efab12 NIS |
2872 | typedef struct |
2873 | { | |
2874 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
60382766 | 2875 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 NIS |
2876 | } PerlIOCrlf; |
2877 | ||
f5b9d040 | 2878 | IV |
e3f3bf95 | 2879 | PerlIOCrlf_pushed(PerlIO *f, const char *mode,SV *arg) |
f5b9d040 NIS |
2880 | { |
2881 | IV code; | |
2882 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
e3f3bf95 | 2883 | code = PerlIOBuf_pushed(f,mode,arg); |
5e2ab84b | 2884 | #if 0 |
4659c93f | 2885 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n", |
f5b9d040 | 2886 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
a4d3c1d3 | 2887 | PerlIOBase(f)->flags); |
5e2ab84b | 2888 | #endif |
f5b9d040 NIS |
2889 | return code; |
2890 | } | |
2891 | ||
2892 | ||
99efab12 NIS |
2893 | SSize_t |
2894 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2895 | { | |
60382766 | 2896 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 NIS |
2897 | if (c->nl) |
2898 | { | |
2899 | *(c->nl) = 0xd; | |
2900 | c->nl = NULL; | |
2901 | } | |
f5b9d040 NIS |
2902 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2903 | return PerlIOBuf_unread(f,vbuf,count); | |
2904 | else | |
99efab12 | 2905 | { |
a4d3c1d3 | 2906 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
f5b9d040 NIS |
2907 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2908 | SSize_t unread = 0; | |
2909 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2910 | PerlIO_flush(f); | |
2911 | if (!b->buf) | |
2912 | PerlIO_get_base(f); | |
2913 | if (b->buf) | |
99efab12 | 2914 | { |
f5b9d040 | 2915 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 | 2916 | { |
f5b9d040 NIS |
2917 | b->end = b->ptr = b->buf + b->bufsiz; |
2918 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
5e2ab84b | 2919 | b->posn -= b->bufsiz; |
f5b9d040 NIS |
2920 | } |
2921 | while (count > 0 && b->ptr > b->buf) | |
2922 | { | |
2923 | int ch = *--buf; | |
2924 | if (ch == '\n') | |
99efab12 | 2925 | { |
f5b9d040 NIS |
2926 | if (b->ptr - 2 >= b->buf) |
2927 | { | |
2928 | *--(b->ptr) = 0xa; | |
2929 | *--(b->ptr) = 0xd; | |
2930 | unread++; | |
2931 | count--; | |
2932 | } | |
2933 | else | |
2934 | { | |
2935 | buf++; | |
2936 | break; | |
2937 | } | |
99efab12 NIS |
2938 | } |
2939 | else | |
2940 | { | |
f5b9d040 NIS |
2941 | *--(b->ptr) = ch; |
2942 | unread++; | |
2943 | count--; | |
99efab12 NIS |
2944 | } |
2945 | } | |
99efab12 | 2946 | } |
f5b9d040 | 2947 | return unread; |
99efab12 | 2948 | } |
99efab12 NIS |
2949 | } |
2950 | ||
2951 | SSize_t | |
2952 | PerlIOCrlf_get_cnt(PerlIO *f) | |
2953 | { | |
2954 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2955 | if (!b->buf) | |
2956 | PerlIO_get_base(f); | |
2957 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2958 | { | |
2959 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 2960 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 NIS |
2961 | { |
2962 | STDCHAR *nl = b->ptr; | |
60382766 | 2963 | scan: |
99efab12 NIS |
2964 | while (nl < b->end && *nl != 0xd) |
2965 | nl++; | |
2966 | if (nl < b->end && *nl == 0xd) | |
2967 | { | |
60382766 | 2968 | test: |
99efab12 NIS |
2969 | if (nl+1 < b->end) |
2970 | { | |
2971 | if (nl[1] == 0xa) | |
2972 | { | |
2973 | *nl = '\n'; | |
60382766 | 2974 | c->nl = nl; |
99efab12 | 2975 | } |
60382766 | 2976 | else |
99efab12 NIS |
2977 | { |
2978 | /* Not CR,LF but just CR */ | |
2979 | nl++; | |
60382766 | 2980 | goto scan; |
99efab12 NIS |
2981 | } |
2982 | } | |
2983 | else | |
2984 | { | |
60382766 | 2985 | /* Blast - found CR as last char in buffer */ |
99efab12 NIS |
2986 | if (b->ptr < nl) |
2987 | { | |
2988 | /* They may not care, defer work as long as possible */ | |
60382766 | 2989 | return (nl - b->ptr); |
99efab12 NIS |
2990 | } |
2991 | else | |
2992 | { | |
2993 | int code; | |
2994 | dTHX; | |
99efab12 NIS |
2995 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
2996 | b->buf++; /* Leave space an front of buffer */ | |
2997 | b->bufsiz--; /* Buffer is thus smaller */ | |
2998 | code = PerlIO_fill(f); /* Fetch some more */ | |
2999 | b->bufsiz++; /* Restore size for next time */ | |
3000 | b->buf--; /* Point at space */ | |
3001 | b->ptr = nl = b->buf; /* Which is what we hand off */ | |
3002 | b->posn--; /* Buffer starts here */ | |
3003 | *nl = 0xd; /* Fill in the CR */ | |
60382766 | 3004 | if (code == 0) |
99efab12 NIS |
3005 | goto test; /* fill() call worked */ |
3006 | /* CR at EOF - just fall through */ | |
3007 | } | |
3008 | } | |
60382766 NIS |
3009 | } |
3010 | } | |
99efab12 NIS |
3011 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
3012 | } | |
3013 | return 0; | |
3014 | } | |
3015 | ||
3016 | void | |
3017 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
3018 | { | |
3019 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3020 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 3021 | IV flags = PerlIOBase(f)->flags; |
99efab12 NIS |
3022 | if (!b->buf) |
3023 | PerlIO_get_base(f); | |
3024 | if (!ptr) | |
60382766 | 3025 | { |
63dbdb06 NIS |
3026 | if (c->nl) |
3027 | ptr = c->nl+1; | |
3028 | else | |
3029 | { | |
3030 | ptr = b->end; | |
f5b9d040 | 3031 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 NIS |
3032 | ptr--; |
3033 | } | |
3034 | ptr -= cnt; | |
60382766 NIS |
3035 | } |
3036 | else | |
3037 | { | |
63dbdb06 NIS |
3038 | /* Test code - delete when it works ... */ |
3039 | STDCHAR *chk; | |
3040 | if (c->nl) | |
3041 | chk = c->nl+1; | |
3042 | else | |
3043 | { | |
3044 | chk = b->end; | |
f5b9d040 | 3045 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 NIS |
3046 | chk--; |
3047 | } | |
3048 | chk -= cnt; | |
a4d3c1d3 | 3049 | |
63dbdb06 NIS |
3050 | if (ptr != chk) |
3051 | { | |
3052 | dTHX; | |
4659c93f | 3053 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d", |
a4d3c1d3 | 3054 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 | 3055 | } |
60382766 | 3056 | } |
99efab12 NIS |
3057 | if (c->nl) |
3058 | { | |
3059 | if (ptr > c->nl) | |
3060 | { | |
3061 | /* They have taken what we lied about */ | |
3062 | *(c->nl) = 0xd; | |
3063 | c->nl = NULL; | |
3064 | ptr++; | |
60382766 | 3065 | } |
99efab12 NIS |
3066 | } |
3067 | b->ptr = ptr; | |
3068 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3069 | } | |
3070 | ||
3071 | SSize_t | |
3072 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) | |
3073 | { | |
f5b9d040 NIS |
3074 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
3075 | return PerlIOBuf_write(f,vbuf,count); | |
3076 | else | |
99efab12 | 3077 | { |
a4d3c1d3 | 3078 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
f5b9d040 NIS |
3079 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
3080 | const STDCHAR *ebuf = buf+count; | |
3081 | if (!b->buf) | |
3082 | PerlIO_get_base(f); | |
3083 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
3084 | return 0; | |
3085 | while (buf < ebuf) | |
99efab12 | 3086 | { |
f5b9d040 NIS |
3087 | STDCHAR *eptr = b->buf+b->bufsiz; |
3088 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
3089 | while (buf < ebuf && b->ptr < eptr) | |
99efab12 | 3090 | { |
f5b9d040 | 3091 | if (*buf == '\n') |
60382766 | 3092 | { |
f5b9d040 | 3093 | if ((b->ptr + 2) > eptr) |
60382766 | 3094 | { |
f5b9d040 | 3095 | /* Not room for both */ |
60382766 NIS |
3096 | PerlIO_flush(f); |
3097 | break; | |
3098 | } | |
f5b9d040 NIS |
3099 | else |
3100 | { | |
3101 | *(b->ptr)++ = 0xd; /* CR */ | |
3102 | *(b->ptr)++ = 0xa; /* LF */ | |
3103 | buf++; | |
3104 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
3105 | { | |
3106 | PerlIO_flush(f); | |
3107 | break; | |
3108 | } | |
3109 | } | |
3110 | } | |
3111 | else | |
3112 | { | |
3113 | int ch = *buf++; | |
3114 | *(b->ptr)++ = ch; | |
3115 | } | |
3116 | if (b->ptr >= eptr) | |
3117 | { | |
3118 | PerlIO_flush(f); | |
3119 | break; | |
99efab12 | 3120 | } |
99efab12 NIS |
3121 | } |
3122 | } | |
f5b9d040 NIS |
3123 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
3124 | PerlIO_flush(f); | |
3125 | return (buf - (STDCHAR *) vbuf); | |
99efab12 | 3126 | } |
99efab12 NIS |
3127 | } |
3128 | ||
3129 | IV | |
3130 | PerlIOCrlf_flush(PerlIO *f) | |
3131 | { | |
3132 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
3133 | if (c->nl) | |
3134 | { | |
99efab12 | 3135 | *(c->nl) = 0xd; |
60382766 | 3136 | c->nl = NULL; |
99efab12 NIS |
3137 | } |
3138 | return PerlIOBuf_flush(f); | |
3139 | } | |
3140 | ||
66ecd56b NIS |
3141 | PerlIO_funcs PerlIO_crlf = { |
3142 | "crlf", | |
99efab12 | 3143 | sizeof(PerlIOCrlf), |
f5b9d040 | 3144 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
f5b9d040 | 3145 | PerlIOCrlf_pushed, |
99efab12 | 3146 | PerlIOBase_noop_ok, /* popped */ |
e3f3bf95 NIS |
3147 | PerlIOBuf_open, |
3148 | NULL, | |
3149 | PerlIOBase_fileno, | |
99efab12 NIS |
3150 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ |
3151 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ | |
3152 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
66ecd56b NIS |
3153 | PerlIOBuf_seek, |
3154 | PerlIOBuf_tell, | |
3155 | PerlIOBuf_close, | |
99efab12 | 3156 | PerlIOCrlf_flush, |
66ecd56b NIS |
3157 | PerlIOBuf_fill, |
3158 | PerlIOBase_eof, | |
3159 | PerlIOBase_error, | |
3160 | PerlIOBase_clearerr, | |
f6c77cf1 | 3161 | PerlIOBase_setlinebuf, |
66ecd56b NIS |
3162 | PerlIOBuf_get_base, |
3163 | PerlIOBuf_bufsiz, | |
3164 | PerlIOBuf_get_ptr, | |
99efab12 NIS |
3165 | PerlIOCrlf_get_cnt, |
3166 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
3167 | }; |
3168 | ||
06da4f11 NIS |
3169 | #ifdef HAS_MMAP |
3170 | /*--------------------------------------------------------------------------------------*/ | |
3171 | /* mmap as "buffer" layer */ | |
3172 | ||
3173 | typedef struct | |
3174 | { | |
3175 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 3176 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
3177 | Size_t len; /* mapped length */ |
3178 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
3179 | } PerlIOMmap; | |
3180 | ||
c3d7c7c9 NIS |
3181 | static size_t page_size = 0; |
3182 | ||
06da4f11 NIS |
3183 | IV |
3184 | PerlIOMmap_map(PerlIO *f) | |
3185 | { | |
68d873c6 | 3186 | dTHX; |
06da4f11 NIS |
3187 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
3188 | PerlIOBuf *b = &m->base; | |
3189 | IV flags = PerlIOBase(f)->flags; | |
3190 | IV code = 0; | |
3191 | if (m->len) | |
3192 | abort(); | |
3193 | if (flags & PERLIO_F_CANREAD) | |
3194 | { | |
3195 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3196 | int fd = PerlIO_fileno(f); | |
3197 | struct stat st; | |
3198 | code = fstat(fd,&st); | |
3199 | if (code == 0 && S_ISREG(st.st_mode)) | |
3200 | { | |
3201 | SSize_t len = st.st_size - b->posn; | |
3202 | if (len > 0) | |
3203 | { | |
c3d7c7c9 | 3204 | Off_t posn; |
68d873c6 JH |
3205 | if (!page_size) { |
3206 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
3207 | { | |
3208 | SETERRNO(0,SS$_NORMAL); | |
3209 | # ifdef _SC_PAGESIZE | |
3210 | page_size = sysconf(_SC_PAGESIZE); | |
3211 | # else | |
3212 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 3213 | # endif |
68d873c6 JH |
3214 | if ((long)page_size < 0) { |
3215 | if (errno) { | |
3216 | SV *error = ERRSV; | |
3217 | char *msg; | |
3218 | STRLEN n_a; | |
3219 | (void)SvUPGRADE(error, SVt_PV); | |
3220 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 3221 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
3222 | } |
3223 | else | |
14aaf8e8 | 3224 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
3225 | } |
3226 | } | |
3227 | #else | |
3228 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 3229 | page_size = getpagesize(); |
68d873c6 JH |
3230 | # else |
3231 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
3232 | page_size = PAGESIZE; /* compiletime, bad */ | |
3233 | # endif | |
3234 | # endif | |
3235 | #endif | |
3236 | if ((IV)page_size <= 0) | |
14aaf8e8 | 3237 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 3238 | } |
c3d7c7c9 NIS |
3239 | if (b->posn < 0) |
3240 | { | |
3241 | /* This is a hack - should never happen - open should have set it ! */ | |
3242 | b->posn = PerlIO_tell(PerlIONext(f)); | |
3243 | } | |
3244 | posn = (b->posn / page_size) * page_size; | |
3245 | len = st.st_size - posn; | |
a5262162 | 3246 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); |
c3d7c7c9 | 3247 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 | 3248 | { |
a5262162 | 3249 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 | 3250 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 3251 | #endif |
a5262162 NIS |
3252 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
3253 | madvise(m->mptr, len, MADV_WILLNEED); | |
3254 | #endif | |
c3d7c7c9 NIS |
3255 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
3256 | b->end = ((STDCHAR *)m->mptr) + len; | |
3257 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
3258 | b->ptr = b->buf; | |
3259 | m->len = len; | |
06da4f11 NIS |
3260 | } |
3261 | else | |
3262 | { | |
3263 | b->buf = NULL; | |
3264 | } | |
3265 | } | |
3266 | else | |
3267 | { | |
3268 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
3269 | b->buf = NULL; | |
3270 | b->ptr = b->end = b->ptr; | |
3271 | code = -1; | |
3272 | } | |
3273 | } | |
3274 | } | |
3275 | return code; | |
3276 | } | |
3277 | ||
3278 | IV | |
3279 | PerlIOMmap_unmap(PerlIO *f) | |
3280 | { | |
3281 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3282 | PerlIOBuf *b = &m->base; | |
3283 | IV code = 0; | |
3284 | if (m->len) | |
3285 | { | |
3286 | if (b->buf) | |
3287 | { | |
c3d7c7c9 NIS |
3288 | code = munmap(m->mptr, m->len); |
3289 | b->buf = NULL; | |
3290 | m->len = 0; | |
3291 | m->mptr = NULL; | |
06da4f11 NIS |
3292 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
3293 | code = -1; | |
06da4f11 NIS |
3294 | } |
3295 | b->ptr = b->end = b->buf; | |
3296 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
3297 | } | |
3298 | return code; | |
3299 | } | |
3300 | ||
3301 | STDCHAR * | |
3302 | PerlIOMmap_get_base(PerlIO *f) | |
3303 | { | |
3304 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3305 | PerlIOBuf *b = &m->base; | |
3306 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
3307 | { | |
3308 | /* Already have a readbuffer in progress */ | |
3309 | return b->buf; | |
3310 | } | |
3311 | if (b->buf) | |
3312 | { | |
3313 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
3314 | m->bbuf = b->buf; /* save it in case we need it again */ | |
3315 | b->buf = NULL; /* Clear to trigger below */ | |
3316 | } | |
3317 | if (!b->buf) | |
3318 | { | |
3319 | PerlIOMmap_map(f); /* Try and map it */ | |
3320 | if (!b->buf) | |
3321 | { | |
3322 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
3323 | b->buf = m->bbuf; | |
3324 | } | |
3325 | } | |
3326 | b->ptr = b->end = b->buf; | |
3327 | if (b->buf) | |
3328 | return b->buf; | |
3329 | return PerlIOBuf_get_base(f); | |
3330 | } | |
3331 | ||
3332 | SSize_t | |
3333 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3334 | { | |
3335 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3336 | PerlIOBuf *b = &m->base; | |
3337 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3338 | PerlIO_flush(f); | |
3339 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
3340 | { | |
3341 | b->ptr -= count; | |
3342 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
3343 | return count; | |
3344 | } | |
3345 | if (m->len) | |
3346 | { | |
4a4a6116 | 3347 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 3348 | PerlIO_flush(f); |
c3d7c7c9 NIS |
3349 | /* If flush took the "buffer" see if we have one from before */ |
3350 | if (!b->buf && m->bbuf) | |
3351 | b->buf = m->bbuf; | |
3352 | if (!b->buf) | |
3353 | { | |
3354 | PerlIOBuf_get_base(f); | |
3355 | m->bbuf = b->buf; | |
3356 | } | |
06da4f11 | 3357 | } |
5e2ab84b | 3358 | return PerlIOBuf_unread(f,vbuf,count); |
06da4f11 NIS |
3359 | } |
3360 | ||
3361 | SSize_t | |
3362 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
3363 | { | |
3364 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3365 | PerlIOBuf *b = &m->base; | |
3366 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
3367 | { | |
3368 | /* No, or wrong sort of, buffer */ | |
3369 | if (m->len) | |
3370 | { | |
3371 | if (PerlIOMmap_unmap(f) != 0) | |
3372 | return 0; | |
3373 | } | |
3374 | /* If unmap took the "buffer" see if we have one from before */ | |
3375 | if (!b->buf && m->bbuf) | |
3376 | b->buf = m->bbuf; | |
3377 | if (!b->buf) | |
3378 | { | |
3379 | PerlIOBuf_get_base(f); | |
3380 | m->bbuf = b->buf; | |
3381 | } | |
3382 | } | |
3383 | return PerlIOBuf_write(f,vbuf,count); | |
3384 | } | |
3385 | ||
3386 | IV | |
3387 | PerlIOMmap_flush(PerlIO *f) | |
3388 | { | |
3389 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3390 | PerlIOBuf *b = &m->base; | |
3391 | IV code = PerlIOBuf_flush(f); | |
3392 | /* Now we are "synced" at PerlIOBuf level */ | |
3393 | if (b->buf) | |
3394 | { | |
3395 | if (m->len) | |
3396 | { | |
3397 | /* Unmap the buffer */ | |
3398 | if (PerlIOMmap_unmap(f) != 0) | |
3399 | code = -1; | |
3400 | } | |
3401 | else | |
3402 | { | |
3403 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
3404 | * remember it in case we need one later | |
3405 | */ | |
3406 | m->bbuf = b->buf; | |
3407 | } | |
3408 | } | |
06da4f11 NIS |
3409 | return code; |
3410 | } | |
3411 | ||
3412 | IV | |
3413 | PerlIOMmap_fill(PerlIO *f) | |
3414 | { | |
3415 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3416 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
3417 | if (code == 0 && !b->buf) |
3418 | { | |
3419 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
3420 | } |
3421 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
3422 | { | |
3423 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
3424 | } |
3425 | return code; | |
3426 | } | |
3427 | ||
3428 | IV | |
3429 | PerlIOMmap_close(PerlIO *f) | |
3430 | { | |
3431 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3432 | PerlIOBuf *b = &m->base; | |
3433 | IV code = PerlIO_flush(f); | |
3434 | if (m->bbuf) | |
3435 | { | |
3436 | b->buf = m->bbuf; | |
3437 | m->bbuf = NULL; | |
3438 | b->ptr = b->end = b->buf; | |
3439 | } | |
3440 | if (PerlIOBuf_close(f) != 0) | |
3441 | code = -1; | |
06da4f11 NIS |
3442 | return code; |
3443 | } | |
3444 | ||
3445 | ||
3446 | PerlIO_funcs PerlIO_mmap = { | |
3447 | "mmap", | |
3448 | sizeof(PerlIOMmap), | |
f5b9d040 | 3449 | PERLIO_K_BUFFERED, |
5e2ab84b | 3450 | PerlIOBuf_pushed, |
06da4f11 | 3451 | PerlIOBase_noop_ok, |
e3f3bf95 NIS |
3452 | PerlIOBuf_open, |
3453 | NULL, | |
3454 | PerlIOBase_fileno, | |
06da4f11 NIS |
3455 | PerlIOBuf_read, |
3456 | PerlIOMmap_unread, | |
3457 | PerlIOMmap_write, | |
3458 | PerlIOBuf_seek, | |
3459 | PerlIOBuf_tell, | |
3460 | PerlIOBuf_close, | |
3461 | PerlIOMmap_flush, | |
3462 | PerlIOMmap_fill, | |
3463 | PerlIOBase_eof, | |
3464 | PerlIOBase_error, | |
3465 | PerlIOBase_clearerr, | |
f6c77cf1 | 3466 | PerlIOBase_setlinebuf, |
06da4f11 NIS |
3467 | PerlIOMmap_get_base, |
3468 | PerlIOBuf_bufsiz, | |
3469 | PerlIOBuf_get_ptr, | |
3470 | PerlIOBuf_get_cnt, | |
3471 | PerlIOBuf_set_ptrcnt, | |
3472 | }; | |
3473 | ||
3474 | #endif /* HAS_MMAP */ | |
3475 | ||
9e353e3b NIS |
3476 | void |
3477 | PerlIO_init(void) | |
760ac839 | 3478 | { |
9e353e3b | 3479 | if (!_perlio) |
6f9d8c32 | 3480 | { |
be696b0a | 3481 | #ifndef WIN32 |
9e353e3b | 3482 | atexit(&PerlIO_cleanup); |
be696b0a | 3483 | #endif |
6f9d8c32 | 3484 | } |
760ac839 LW |
3485 | } |
3486 | ||
9e353e3b NIS |
3487 | #undef PerlIO_stdin |
3488 | PerlIO * | |
3489 | PerlIO_stdin(void) | |
3490 | { | |
3491 | if (!_perlio) | |
1141d9f8 NIS |
3492 | { |
3493 | dTHX; | |
3494 | PerlIO_stdstreams(aTHX); | |
3495 | } | |
05d1247b | 3496 | return &_perlio[1]; |
9e353e3b NIS |
3497 | } |
3498 | ||
3499 | #undef PerlIO_stdout | |
3500 | PerlIO * | |
3501 | PerlIO_stdout(void) | |
3502 | { | |
3503 | if (!_perlio) | |
1141d9f8 NIS |
3504 | { |
3505 | dTHX; | |
3506 | PerlIO_stdstreams(aTHX); | |
3507 | } | |
05d1247b | 3508 | return &_perlio[2]; |
9e353e3b NIS |
3509 | } |
3510 | ||
3511 | #undef PerlIO_stderr | |
3512 | PerlIO * | |
3513 | PerlIO_stderr(void) | |
3514 | { | |
3515 | if (!_perlio) | |
1141d9f8 NIS |
3516 | { |
3517 | dTHX; | |
3518 | PerlIO_stdstreams(aTHX); | |
3519 | } | |
05d1247b | 3520 | return &_perlio[3]; |
9e353e3b NIS |
3521 | } |
3522 | ||
3523 | /*--------------------------------------------------------------------------------------*/ | |
3524 | ||
3525 | #undef PerlIO_getname | |
3526 | char * | |
3527 | PerlIO_getname(PerlIO *f, char *buf) | |
3528 | { | |
3529 | dTHX; | |
3530 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
3531 | return NULL; | |
3532 | } | |
3533 | ||
3534 | ||
3535 | /*--------------------------------------------------------------------------------------*/ | |
3536 | /* Functions which can be called on any kind of PerlIO implemented | |
3537 | in terms of above | |
3538 | */ | |
3539 | ||
3540 | #undef PerlIO_getc | |
6f9d8c32 | 3541 | int |
9e353e3b | 3542 | PerlIO_getc(PerlIO *f) |
760ac839 | 3543 | { |
313ca112 NIS |
3544 | STDCHAR buf[1]; |
3545 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 3546 | if (count == 1) |
313ca112 NIS |
3547 | { |
3548 | return (unsigned char) buf[0]; | |
3549 | } | |
3550 | return EOF; | |
3551 | } | |
3552 | ||
3553 | #undef PerlIO_ungetc | |
3554 | int | |
3555 | PerlIO_ungetc(PerlIO *f, int ch) | |
3556 | { | |
3557 | if (ch != EOF) | |
3558 | { | |
3559 | STDCHAR buf = ch; | |
3560 | if (PerlIO_unread(f,&buf,1) == 1) | |
3561 | return ch; | |
3562 | } | |
3563 | return EOF; | |
760ac839 LW |
3564 | } |
3565 | ||
9e353e3b NIS |
3566 | #undef PerlIO_putc |
3567 | int | |
3568 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 3569 | { |
9e353e3b NIS |
3570 | STDCHAR buf = ch; |
3571 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
3572 | } |
3573 | ||
9e353e3b | 3574 | #undef PerlIO_puts |
760ac839 | 3575 | int |
9e353e3b | 3576 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 3577 | { |
9e353e3b NIS |
3578 | STRLEN len = strlen(s); |
3579 | return PerlIO_write(f,s,len); | |
760ac839 LW |
3580 | } |
3581 | ||
3582 | #undef PerlIO_rewind | |
3583 | void | |
c78749f2 | 3584 | PerlIO_rewind(PerlIO *f) |
760ac839 | 3585 | { |
6f9d8c32 | 3586 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 3587 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
3588 | } |
3589 | ||
3590 | #undef PerlIO_vprintf | |
3591 | int | |
3592 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
3593 | { | |
3594 | dTHX; | |
bb9950b7 | 3595 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
3596 | char *s; |
3597 | STRLEN len; | |
933fb4e4 | 3598 | SSize_t wrote; |
2cc61e15 DD |
3599 | #ifdef NEED_VA_COPY |
3600 | va_list apc; | |
3601 | Perl_va_copy(ap, apc); | |
3602 | sv_vcatpvf(sv, fmt, &apc); | |
3603 | #else | |
6f9d8c32 | 3604 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 3605 | #endif |
6f9d8c32 | 3606 | s = SvPV(sv,len); |
933fb4e4 BS |
3607 | wrote = PerlIO_write(f,s,len); |
3608 | SvREFCNT_dec(sv); | |
3609 | return wrote; | |
760ac839 LW |
3610 | } |
3611 | ||
3612 | #undef PerlIO_printf | |
6f9d8c32 | 3613 | int |
760ac839 | 3614 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
3615 | { |
3616 | va_list ap; | |
3617 | int result; | |
760ac839 | 3618 | va_start(ap,fmt); |
6f9d8c32 | 3619 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
3620 | va_end(ap); |
3621 | return result; | |
3622 | } | |
3623 | ||
3624 | #undef PerlIO_stdoutf | |
6f9d8c32 | 3625 | int |
760ac839 | 3626 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
3627 | { |
3628 | va_list ap; | |
3629 | int result; | |
760ac839 | 3630 | va_start(ap,fmt); |
760ac839 LW |
3631 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
3632 | va_end(ap); | |
3633 | return result; | |
3634 | } | |
3635 | ||
3636 | #undef PerlIO_tmpfile | |
3637 | PerlIO * | |
c78749f2 | 3638 | PerlIO_tmpfile(void) |
760ac839 | 3639 | { |
b1ef6e3b | 3640 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 | 3641 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
adb71456 | 3642 | dTHX; |
83b075c3 | 3643 | PerlIO *f = NULL; |
eaf8b698 | 3644 | FILE *stdio = PerlSIO_tmpfile(); |
83b075c3 NIS |
3645 | if (stdio) |
3646 | { | |
e3f3bf95 | 3647 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"w+",Nullsv),PerlIOStdio); |
83b075c3 NIS |
3648 | s->stdio = stdio; |
3649 | } | |
3650 | return f; | |
3651 | #else | |
3652 | dTHX; | |
6f9d8c32 NIS |
3653 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
3654 | int fd = mkstemp(SvPVX(sv)); | |
3655 | PerlIO *f = NULL; | |
3656 | if (fd >= 0) | |
3657 | { | |
b1ef6e3b | 3658 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
3659 | if (f) |
3660 | { | |
9e353e3b | 3661 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 3662 | } |
00b02797 | 3663 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
3664 | SvREFCNT_dec(sv); |
3665 | } | |
3666 | return f; | |
83b075c3 | 3667 | #endif |
760ac839 LW |
3668 | } |
3669 | ||
6f9d8c32 NIS |
3670 | #undef HAS_FSETPOS |
3671 | #undef HAS_FGETPOS | |
3672 | ||
760ac839 LW |
3673 | #endif /* USE_SFIO */ |
3674 | #endif /* PERLIO_IS_STDIO */ | |
3675 | ||
9e353e3b NIS |
3676 | /*======================================================================================*/ |
3677 | /* Now some functions in terms of above which may be needed even if | |
3678 | we are not in true PerlIO mode | |
3679 | */ | |
3680 | ||
760ac839 LW |
3681 | #ifndef HAS_FSETPOS |
3682 | #undef PerlIO_setpos | |
3683 | int | |
766a733e | 3684 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 3685 | { |
766a733e NIS |
3686 | dTHX; |
3687 | if (SvOK(pos)) | |
3688 | { | |
3689 | STRLEN len; | |
3690 | Off_t *posn = (Off_t *) SvPV(pos,len); | |
3691 | if (f && len == sizeof(Off_t)) | |
3692 | return PerlIO_seek(f,*posn,SEEK_SET); | |
3693 | } | |
3694 | errno = EINVAL; | |
3695 | return -1; | |
760ac839 | 3696 | } |
c411622e | 3697 | #else |
c411622e | 3698 | #undef PerlIO_setpos |
3699 | int | |
766a733e | 3700 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 3701 | { |
766a733e NIS |
3702 | dTHX; |
3703 | if (SvOK(pos)) | |
3704 | { | |
3705 | STRLEN len; | |
3706 | Fpos_t *fpos = (Fpos_t *) SvPV(pos,len); | |
3707 | if (f && len == sizeof(Fpos_t)) | |
3708 | { | |
2d4389e4 | 3709 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3710 | return fsetpos64(f, fpos); |
d9b3e12d | 3711 | #else |
766a733e | 3712 | return fsetpos(f, fpos); |
d9b3e12d | 3713 | #endif |
766a733e NIS |
3714 | } |
3715 | } | |
3716 | errno = EINVAL; | |
3717 | return -1; | |
c411622e | 3718 | } |
3719 | #endif | |
760ac839 LW |
3720 | |
3721 | #ifndef HAS_FGETPOS | |
3722 | #undef PerlIO_getpos | |
3723 | int | |
766a733e | 3724 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 3725 | { |
766a733e NIS |
3726 | dTHX; |
3727 | Off_t posn = PerlIO_tell(f); | |
3728 | sv_setpvn(pos,(char *)&posn,sizeof(posn)); | |
3729 | return (posn == (Off_t)-1) ? -1 : 0; | |
760ac839 | 3730 | } |
c411622e | 3731 | #else |
c411622e | 3732 | #undef PerlIO_getpos |
3733 | int | |
766a733e | 3734 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 3735 | { |
766a733e NIS |
3736 | dTHX; |
3737 | Fpos_t fpos; | |
3738 | int code; | |
2d4389e4 | 3739 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3740 | code = fgetpos64(f, &fpos); |
d9b3e12d | 3741 | #else |
766a733e | 3742 | code = fgetpos(f, &fpos); |
d9b3e12d | 3743 | #endif |
766a733e NIS |
3744 | sv_setpvn(pos,(char *)&fpos,sizeof(fpos)); |
3745 | return code; | |
c411622e | 3746 | } |
3747 | #endif | |
760ac839 LW |
3748 | |
3749 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
3750 | ||
3751 | int | |
c78749f2 | 3752 | vprintf(char *pat, char *args) |
662a7e3f CS |
3753 | { |
3754 | _doprnt(pat, args, stdout); | |
3755 | return 0; /* wrong, but perl doesn't use the return value */ | |
3756 | } | |
3757 | ||
3758 | int | |
c78749f2 | 3759 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
3760 | { |
3761 | _doprnt(pat, args, fd); | |
3762 | return 0; /* wrong, but perl doesn't use the return value */ | |
3763 | } | |
3764 | ||
3765 | #endif | |
3766 | ||
3767 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 3768 | int |
8ac85365 | 3769 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
3770 | { |
3771 | int val = vsprintf(s, fmt, ap); | |
3772 | if (n >= 0) | |
3773 | { | |
8c86a920 | 3774 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 3775 | { |
bf49b057 | 3776 | dTHX; |
fb4a9925 JH |
3777 | (void)PerlIO_puts(Perl_error_log, |
3778 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 3779 | my_exit(1); |
760ac839 LW |
3780 | } |
3781 | } | |
3782 | return val; | |
3783 | } | |
3784 | #endif | |
3785 | ||
3786 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 3787 | int |
760ac839 | 3788 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
3789 | { |
3790 | va_list ap; | |
3791 | int result; | |
760ac839 | 3792 | va_start(ap,fmt); |
760ac839 LW |
3793 | result = PerlIO_vsprintf(s, n, fmt, ap); |
3794 | va_end(ap); | |
3795 | return result; | |
3796 | } | |
3797 | #endif | |
3798 | ||
c5be433b | 3799 |