Commit | Line | Data |
---|---|---|
760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | #define VOIDUSED 1 | |
12ae5dfc JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
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 | ||
f5b9d040 NIS |
96 | int |
97 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) | |
98 | { | |
99 | return perlsio_binmode(fp,iotype,mode); | |
100 | } | |
60382766 | 101 | |
ac27b0f5 NIS |
102 | #endif |
103 | ||
32e30700 | 104 | |
6f9d8c32 | 105 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
106 | |
107 | void | |
8ac85365 | 108 | PerlIO_init(void) |
760ac839 | 109 | { |
6f9d8c32 | 110 | /* Does nothing (yet) except force this file to be included |
760ac839 | 111 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
112 | of other functions that may be required by loadable |
113 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
114 | */ |
115 | } | |
116 | ||
33dcbb9a | 117 | #undef PerlIO_tmpfile |
118 | PerlIO * | |
8ac85365 | 119 | PerlIO_tmpfile(void) |
33dcbb9a | 120 | { |
121 | return tmpfile(); | |
122 | } | |
123 | ||
760ac839 LW |
124 | #else /* PERLIO_IS_STDIO */ |
125 | ||
126 | #ifdef USE_SFIO | |
127 | ||
128 | #undef HAS_FSETPOS | |
129 | #undef HAS_FGETPOS | |
130 | ||
6f9d8c32 | 131 | /* This section is just to make sure these functions |
760ac839 LW |
132 | get pulled in from libsfio.a |
133 | */ | |
134 | ||
135 | #undef PerlIO_tmpfile | |
136 | PerlIO * | |
c78749f2 | 137 | PerlIO_tmpfile(void) |
760ac839 LW |
138 | { |
139 | return sftmp(0); | |
140 | } | |
141 | ||
142 | void | |
c78749f2 | 143 | PerlIO_init(void) |
760ac839 | 144 | { |
6f9d8c32 NIS |
145 | /* Force this file to be included in perl binary. Which allows |
146 | * this file to force inclusion of other functions that may be | |
147 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
148 | */ |
149 | ||
150 | /* Hack | |
151 | * sfio does its own 'autoflush' on stdout in common cases. | |
6f9d8c32 | 152 | * Flush results in a lot of lseek()s to regular files and |
760ac839 LW |
153 | * lot of small writes to pipes. |
154 | */ | |
155 | sfset(sfstdout,SF_SHARE,0); | |
156 | } | |
157 | ||
17c3b450 | 158 | #else /* USE_SFIO */ |
6f9d8c32 | 159 | /*======================================================================================*/ |
6f9d8c32 | 160 | /* Implement all the PerlIO interface ourselves. |
9e353e3b | 161 | */ |
760ac839 | 162 | |
76ced9ad NIS |
163 | #include "perliol.h" |
164 | ||
b1ef6e3b | 165 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
166 | #ifdef I_UNISTD |
167 | #include <unistd.h> | |
168 | #endif | |
06da4f11 NIS |
169 | #ifdef HAS_MMAP |
170 | #include <sys/mman.h> | |
171 | #endif | |
172 | ||
f3862f8b | 173 | #include "XSUB.h" |
02f66e2f | 174 | |
88b61e10 | 175 | void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 | 176 | |
6f9d8c32 | 177 | void |
88b61e10 | 178 | PerlIO_debug(const char *fmt,...) |
6f9d8c32 | 179 | { |
adb71456 | 180 | dTHX; |
6f9d8c32 | 181 | static int dbg = 0; |
88b61e10 NIS |
182 | va_list ap; |
183 | va_start(ap,fmt); | |
6f9d8c32 NIS |
184 | if (!dbg) |
185 | { | |
00b02797 | 186 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 | 187 | if (s && *s) |
00b02797 | 188 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 NIS |
189 | else |
190 | dbg = -1; | |
191 | } | |
192 | if (dbg > 0) | |
193 | { | |
194 | dTHX; | |
6f9d8c32 NIS |
195 | SV *sv = newSVpvn("",0); |
196 | char *s; | |
197 | STRLEN len; | |
05d1247b NIS |
198 | s = CopFILE(PL_curcop); |
199 | if (!s) | |
200 | s = "(none)"; | |
201 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); | |
c7fc522f NIS |
202 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
203 | ||
6f9d8c32 | 204 | s = SvPV(sv,len); |
00b02797 | 205 | PerlLIO_write(dbg,s,len); |
6f9d8c32 NIS |
206 | SvREFCNT_dec(sv); |
207 | } | |
88b61e10 | 208 | va_end(ap); |
6f9d8c32 NIS |
209 | } |
210 | ||
9e353e3b NIS |
211 | /*--------------------------------------------------------------------------------------*/ |
212 | ||
9e353e3b NIS |
213 | /* Inner level routines */ |
214 | ||
b1ef6e3b | 215 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
216 | PerlIO *_perlio = NULL; |
217 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 218 | |
760ac839 | 219 | PerlIO * |
5f1a76d0 | 220 | PerlIO_allocate(pTHX) |
6f9d8c32 | 221 | { |
f3862f8b | 222 | /* Find a free slot in the table, allocating new table as necessary */ |
5f1a76d0 | 223 | PerlIO **last; |
6f9d8c32 | 224 | PerlIO *f; |
5f1a76d0 | 225 | last = &_perlio; |
05d1247b | 226 | while ((f = *last)) |
6f9d8c32 | 227 | { |
05d1247b NIS |
228 | int i; |
229 | last = (PerlIO **)(f); | |
230 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
6f9d8c32 | 231 | { |
05d1247b | 232 | if (!*++f) |
6f9d8c32 | 233 | { |
6f9d8c32 NIS |
234 | return f; |
235 | } | |
6f9d8c32 | 236 | } |
6f9d8c32 | 237 | } |
5f1a76d0 | 238 | f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO)); |
05d1247b | 239 | if (!f) |
5f1a76d0 NIS |
240 | { |
241 | return NULL; | |
766a733e | 242 | } |
05d1247b NIS |
243 | *last = f; |
244 | return f+1; | |
245 | } | |
246 | ||
247 | void | |
5f1a76d0 | 248 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b NIS |
249 | { |
250 | PerlIO *table = *tablep; | |
251 | if (table) | |
252 | { | |
253 | int i; | |
5f1a76d0 | 254 | PerlIO_cleantable(aTHX_ (PerlIO **) &(table[0])); |
05d1247b NIS |
255 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
256 | { | |
257 | PerlIO *f = table+i; | |
60382766 | 258 | if (*f) |
3789aae2 NIS |
259 | { |
260 | PerlIO_close(f); | |
261 | } | |
05d1247b | 262 | } |
5f1a76d0 | 263 | PerlMemShared_free(table); |
05d1247b NIS |
264 | *tablep = NULL; |
265 | } | |
266 | } | |
267 | ||
4a4a6116 NIS |
268 | HV *PerlIO_layer_hv; |
269 | AV *PerlIO_layer_av; | |
270 | ||
05d1247b | 271 | void |
5f1a76d0 | 272 | PerlIO_cleanup() |
05d1247b | 273 | { |
5f1a76d0 NIS |
274 | dTHX; |
275 | PerlIO_cleantable(aTHX_ &_perlio); | |
6f9d8c32 NIS |
276 | } |
277 | ||
9e353e3b NIS |
278 | void |
279 | PerlIO_pop(PerlIO *f) | |
760ac839 | 280 | { |
5f1a76d0 | 281 | dTHX; |
9e353e3b NIS |
282 | PerlIOl *l = *f; |
283 | if (l) | |
6f9d8c32 | 284 | { |
86295796 | 285 | PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name); |
06da4f11 | 286 | (*l->tab->Popped)(f); |
9e353e3b | 287 | *f = l->next; |
5f1a76d0 | 288 | PerlMemShared_free(l); |
6f9d8c32 | 289 | } |
6f9d8c32 NIS |
290 | } |
291 | ||
9e353e3b | 292 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 | 293 | /* XS Interface for perl code */ |
9e353e3b | 294 | |
b931b1d9 | 295 | XS(XS_perlio_import) |
f3862f8b NIS |
296 | { |
297 | dXSARGS; | |
298 | GV *gv = CvGV(cv); | |
299 | char *s = GvNAME(gv); | |
300 | STRLEN l = GvNAMELEN(gv); | |
301 | PerlIO_debug("%.*s\n",(int) l,s); | |
302 | XSRETURN_EMPTY; | |
303 | } | |
304 | ||
b931b1d9 | 305 | XS(XS_perlio_unimport) |
f3862f8b NIS |
306 | { |
307 | dXSARGS; | |
308 | GV *gv = CvGV(cv); | |
309 | char *s = GvNAME(gv); | |
310 | STRLEN l = GvNAMELEN(gv); | |
311 | PerlIO_debug("%.*s\n",(int) l,s); | |
312 | XSRETURN_EMPTY; | |
313 | } | |
314 | ||
f3862f8b | 315 | SV * |
ac27b0f5 | 316 | PerlIO_find_layer(const char *name, STRLEN len) |
f3862f8b NIS |
317 | { |
318 | dTHX; | |
319 | SV **svp; | |
320 | SV *sv; | |
766a733e | 321 | if ((SSize_t) len <= 0) |
f3862f8b NIS |
322 | len = strlen(name); |
323 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
324 | if (svp && (sv = *svp) && SvROK(sv)) | |
325 | return *svp; | |
326 | return NULL; | |
327 | } | |
328 | ||
b13b2135 NIS |
329 | |
330 | static int | |
331 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
332 | { | |
333 | if (SvROK(sv)) | |
334 | { | |
b931b1d9 | 335 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
336 | PerlIO *ifp = IoIFP(io); |
337 | PerlIO *ofp = IoOFP(io); | |
338 | AV *av = (AV *) mg->mg_obj; | |
4659c93f | 339 | Perl_warn(aTHX_ "set %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
340 | } |
341 | return 0; | |
342 | } | |
343 | ||
344 | static int | |
345 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
346 | { | |
347 | if (SvROK(sv)) | |
348 | { | |
b931b1d9 | 349 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
350 | PerlIO *ifp = IoIFP(io); |
351 | PerlIO *ofp = IoOFP(io); | |
352 | AV *av = (AV *) mg->mg_obj; | |
4659c93f | 353 | Perl_warn(aTHX_ "get %"SVf" %p %p %p",sv,io,ifp,ofp); |
b13b2135 NIS |
354 | } |
355 | return 0; | |
356 | } | |
357 | ||
358 | static int | |
359 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
360 | { | |
4659c93f | 361 | Perl_warn(aTHX_ "clear %"SVf,sv); |
b13b2135 NIS |
362 | return 0; |
363 | } | |
364 | ||
365 | static int | |
366 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
367 | { | |
4659c93f | 368 | Perl_warn(aTHX_ "free %"SVf,sv); |
b13b2135 NIS |
369 | return 0; |
370 | } | |
371 | ||
372 | MGVTBL perlio_vtab = { | |
373 | perlio_mg_get, | |
374 | perlio_mg_set, | |
375 | NULL, /* len */ | |
376 | NULL, | |
377 | perlio_mg_free | |
378 | }; | |
379 | ||
380 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
381 | { | |
382 | dXSARGS; | |
383 | SV *sv = SvRV(ST(1)); | |
384 | AV *av = newAV(); | |
385 | MAGIC *mg; | |
386 | int count = 0; | |
387 | int i; | |
388 | sv_magic(sv, (SV *)av, '~', NULL, 0); | |
389 | SvRMAGICAL_off(sv); | |
390 | mg = mg_find(sv,'~'); | |
391 | mg->mg_virtual = &perlio_vtab; | |
392 | mg_magical(sv); | |
4659c93f | 393 | Perl_warn(aTHX_ "attrib %"SVf,sv); |
b13b2135 NIS |
394 | for (i=2; i < items; i++) |
395 | { | |
396 | STRLEN len; | |
ac27b0f5 | 397 | const char *name = SvPV(ST(i),len); |
b13b2135 NIS |
398 | SV *layer = PerlIO_find_layer(name,len); |
399 | if (layer) | |
400 | { | |
401 | av_push(av,SvREFCNT_inc(layer)); | |
402 | } | |
403 | else | |
404 | { | |
405 | ST(count) = ST(i); | |
406 | count++; | |
407 | } | |
408 | } | |
409 | SvREFCNT_dec(av); | |
410 | XSRETURN(count); | |
411 | } | |
412 | ||
f3862f8b NIS |
413 | void |
414 | PerlIO_define_layer(PerlIO_funcs *tab) | |
415 | { | |
416 | dTHX; | |
b931b1d9 | 417 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 | 418 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b | 419 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
dfebf958 | 420 | PerlIO_debug("define %s %p\n",tab->name,tab); |
f3862f8b NIS |
421 | } |
422 | ||
dfebf958 NIS |
423 | void |
424 | PerlIO_default_buffer(pTHX) | |
425 | { | |
426 | PerlIO_funcs *tab = &PerlIO_perlio; | |
427 | if (O_BINARY != O_TEXT) | |
428 | { | |
429 | tab = &PerlIO_crlf; | |
430 | } | |
431 | else | |
432 | { | |
433 | if (PerlIO_stdio.Set_ptrcnt) | |
434 | { | |
435 | tab = &PerlIO_stdio; | |
436 | } | |
437 | } | |
438 | PerlIO_debug("Pushing %s\n",tab->name); | |
439 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(tab->name,0))); | |
440 | ||
441 | } | |
442 | ||
443 | ||
f3862f8b NIS |
444 | PerlIO_funcs * |
445 | PerlIO_default_layer(I32 n) | |
446 | { | |
447 | dTHX; | |
448 | SV **svp; | |
449 | SV *layer; | |
450 | PerlIO_funcs *tab = &PerlIO_stdio; | |
451 | int len; | |
452 | if (!PerlIO_layer_hv) | |
453 | { | |
ac27b0f5 | 454 | const char *s = PerlEnv_getenv("PERLIO"); |
b931b1d9 NIS |
455 | newXS("perlio::import",XS_perlio_import,__FILE__); |
456 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
457 | #if 0 | |
b13b2135 | 458 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 NIS |
459 | #endif |
460 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); | |
461 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); | |
dfebf958 | 462 | PerlIO_define_layer(&PerlIO_raw); |
f3862f8b | 463 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b NIS |
464 | PerlIO_define_layer(&PerlIO_perlio); |
465 | PerlIO_define_layer(&PerlIO_stdio); | |
66ecd56b | 466 | PerlIO_define_layer(&PerlIO_crlf); |
06da4f11 NIS |
467 | #ifdef HAS_MMAP |
468 | PerlIO_define_layer(&PerlIO_mmap); | |
469 | #endif | |
dfebf958 | 470 | PerlIO_define_layer(&PerlIO_utf8); |
f3862f8b NIS |
471 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
472 | if (s) | |
473 | { | |
dfebf958 | 474 | IV buffered = 0; |
f3862f8b NIS |
475 | while (*s) |
476 | { | |
00b02797 | 477 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b NIS |
478 | s++; |
479 | if (*s) | |
480 | { | |
ac27b0f5 | 481 | const char *e = s; |
f3862f8b | 482 | SV *layer; |
00b02797 | 483 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b | 484 | e++; |
ac27b0f5 NIS |
485 | if (*s == ':') |
486 | s++; | |
f3862f8b NIS |
487 | layer = PerlIO_find_layer(s,e-s); |
488 | if (layer) | |
489 | { | |
dfebf958 NIS |
490 | PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer))); |
491 | if ((tab->kind & PERLIO_K_DUMMY) && (tab->kind & PERLIO_K_BUFFERED)) | |
492 | { | |
493 | if (!buffered) | |
494 | PerlIO_default_buffer(aTHX); | |
495 | } | |
f3862f8b NIS |
496 | PerlIO_debug("Pushing %.*s\n",(e-s),s); |
497 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
dfebf958 | 498 | buffered |= (tab->kind & PERLIO_K_BUFFERED); |
f3862f8b NIS |
499 | } |
500 | else | |
ef0f9817 | 501 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b NIS |
502 | s = e; |
503 | } | |
504 | } | |
505 | } | |
506 | } | |
507 | len = av_len(PerlIO_layer_av); | |
508 | if (len < 1) | |
509 | { | |
dfebf958 | 510 | PerlIO_default_buffer(aTHX); |
f3862f8b NIS |
511 | len = av_len(PerlIO_layer_av); |
512 | } | |
513 | if (n < 0) | |
514 | n += len+1; | |
515 | svp = av_fetch(PerlIO_layer_av,n,0); | |
516 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
517 | { | |
e7778b43 | 518 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b NIS |
519 | } |
520 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
521 | return tab; | |
522 | } | |
523 | ||
60382766 NIS |
524 | #define PerlIO_default_top() PerlIO_default_layer(-1) |
525 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
526 | ||
527 | void | |
528 | PerlIO_stdstreams() | |
529 | { | |
530 | if (!_perlio) | |
531 | { | |
5f1a76d0 NIS |
532 | dTHX; |
533 | PerlIO_allocate(aTHX); | |
f5b9d040 NIS |
534 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
535 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); | |
536 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); | |
60382766 NIS |
537 | } |
538 | } | |
539 | ||
540 | PerlIO * | |
33af2bc7 | 541 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode,const char *arg,STRLEN len) |
60382766 | 542 | { |
5f1a76d0 | 543 | dTHX; |
60382766 | 544 | PerlIOl *l = NULL; |
5f1a76d0 | 545 | l = PerlMemShared_calloc(tab->size,sizeof(char)); |
60382766 NIS |
546 | if (l) |
547 | { | |
548 | Zero(l,tab->size,char); | |
549 | l->next = *f; | |
550 | l->tab = tab; | |
551 | *f = l; | |
a4d3c1d3 | 552 | PerlIO_debug("PerlIO_push f=%p %s %s\n",f,tab->name,(mode) ? mode : "(Null)"); |
33af2bc7 | 553 | if ((*l->tab->Pushed)(f,mode,arg,len) != 0) |
60382766 NIS |
554 | { |
555 | PerlIO_pop(f); | |
556 | return NULL; | |
557 | } | |
558 | } | |
559 | return f; | |
560 | } | |
561 | ||
dfebf958 NIS |
562 | IV |
563 | PerlIOUtf8_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) | |
564 | { | |
565 | if (PerlIONext(f)) | |
566 | { | |
567 | PerlIO_pop(f); | |
568 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
569 | return 0; | |
570 | } | |
571 | return -1; | |
572 | } | |
573 | ||
574 | IV | |
575 | PerlIORaw_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) | |
576 | { | |
577 | /* Pop back to bottom layer */ | |
578 | if (PerlIONext(f)) | |
579 | { | |
580 | PerlIO_flush(f); | |
581 | while (PerlIONext(f)) | |
582 | { | |
583 | PerlIO_pop(f); | |
584 | } | |
585 | return 0; | |
586 | } | |
587 | return -1; | |
588 | } | |
589 | ||
ac27b0f5 NIS |
590 | int |
591 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
592 | { | |
593 | if (names) | |
594 | { | |
595 | const char *s = names; | |
596 | while (*s) | |
597 | { | |
598 | while (isSPACE(*s)) | |
599 | s++; | |
600 | if (*s == ':') | |
601 | s++; | |
602 | if (*s) | |
603 | { | |
604 | const char *e = s; | |
33af2bc7 NIS |
605 | const char *as = Nullch; |
606 | const char *ae = Nullch; | |
607 | int count = 0; | |
ac27b0f5 | 608 | while (*e && *e != ':' && !isSPACE(*e)) |
33af2bc7 NIS |
609 | { |
610 | if (*e == '(') | |
611 | { | |
612 | if (!as) | |
613 | as = e; | |
614 | count++; | |
615 | } | |
616 | else if (*e == ')') | |
617 | { | |
618 | if (as && --count == 0) | |
619 | ae = e; | |
620 | } | |
621 | e++; | |
622 | } | |
ac27b0f5 NIS |
623 | if (e > s) |
624 | { | |
60382766 | 625 | if ((e - s) == 3 && strncmp(s,"raw",3) == 0) |
ac27b0f5 | 626 | { |
60382766 NIS |
627 | /* Pop back to bottom layer */ |
628 | if (PerlIONext(f)) | |
ac27b0f5 | 629 | { |
60382766 NIS |
630 | PerlIO_flush(f); |
631 | while (PerlIONext(f)) | |
632 | { | |
633 | PerlIO_pop(f); | |
634 | } | |
ac27b0f5 NIS |
635 | } |
636 | } | |
7d59b7e4 NIS |
637 | else if ((e - s) == 4 && strncmp(s,"utf8",4) == 0) |
638 | { | |
639 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
640 | } | |
641 | else if ((e - s) == 5 && strncmp(s,"bytes",5) == 0) | |
642 | { | |
643 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
644 | } | |
ac27b0f5 | 645 | else |
60382766 | 646 | { |
33af2bc7 NIS |
647 | STRLEN len = ((as) ? as : e)-s; |
648 | SV *layer = PerlIO_find_layer(s,len); | |
60382766 NIS |
649 | if (layer) |
650 | { | |
651 | PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer))); | |
652 | if (tab) | |
653 | { | |
bccbfa77 NC |
654 | if (as && (ae == Nullch)) { |
655 | ae = e; | |
656 | Perl_warn(aTHX_ "perlio: argument list not closed for layer \"%.*s\"",(int)(e - s),s); | |
657 | } | |
33af2bc7 NIS |
658 | len = (as) ? (ae-(as++)-1) : 0; |
659 | if (!PerlIO_push(f,tab,mode,as,len)) | |
60382766 NIS |
660 | return -1; |
661 | } | |
662 | } | |
663 | else | |
33af2bc7 | 664 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)len,s); |
60382766 | 665 | } |
ac27b0f5 NIS |
666 | } |
667 | s = e; | |
668 | } | |
669 | } | |
670 | } | |
671 | return 0; | |
672 | } | |
673 | ||
f3862f8b | 674 | |
9e353e3b | 675 | |
60382766 NIS |
676 | /*--------------------------------------------------------------------------------------*/ |
677 | /* Given the abstraction above the public API functions */ | |
678 | ||
679 | int | |
f5b9d040 | 680 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 681 | { |
86295796 | 682 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
a4d3c1d3 | 683 | f,PerlIOBase(f)->tab->name,iotype,mode, (names) ? names : "(Null)"); |
33af2bc7 | 684 | if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) |
76ced9ad | 685 | { |
f5b9d040 | 686 | PerlIO *top = f; |
60382766 NIS |
687 | PerlIOl *l; |
688 | while (l = *top) | |
76ced9ad | 689 | { |
60382766 NIS |
690 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
691 | { | |
692 | PerlIO_flush(top); | |
a4d3c1d3 | 693 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 NIS |
694 | break; |
695 | } | |
696 | top = PerlIONext(top); | |
76ced9ad NIS |
697 | } |
698 | } | |
f5b9d040 NIS |
699 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; |
700 | } | |
701 | ||
702 | #undef PerlIO__close | |
703 | int | |
704 | PerlIO__close(PerlIO *f) | |
705 | { | |
706 | return (*PerlIOBase(f)->tab->Close)(f); | |
76ced9ad NIS |
707 | } |
708 | ||
5f1a76d0 NIS |
709 | #undef PerlIO_fdupopen |
710 | PerlIO * | |
711 | PerlIO_fdupopen(pTHX_ PerlIO *f) | |
712 | { | |
713 | char buf[8]; | |
714 | int fd = PerlLIO_dup(PerlIO_fileno(f)); | |
715 | PerlIO *new = PerlIO_fdopen(fd,PerlIO_modestr(f,buf)); | |
716 | if (new) | |
717 | { | |
718 | Off_t posn = PerlIO_tell(f); | |
719 | PerlIO_seek(new,posn,SEEK_SET); | |
720 | } | |
766a733e | 721 | return new; |
5f1a76d0 | 722 | } |
f5b9d040 | 723 | |
b931b1d9 NIS |
724 | #undef PerlIO_close |
725 | int | |
726 | PerlIO_close(PerlIO *f) | |
727 | { | |
728 | int code = (*PerlIOBase(f)->tab->Close)(f); | |
729 | while (*f) | |
730 | { | |
731 | PerlIO_pop(f); | |
732 | } | |
733 | return code; | |
734 | } | |
735 | ||
736 | #undef PerlIO_fileno | |
737 | int | |
738 | PerlIO_fileno(PerlIO *f) | |
739 | { | |
740 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
741 | } | |
742 | ||
743 | ||
744 | ||
9e353e3b NIS |
745 | #undef PerlIO_fdopen |
746 | PerlIO * | |
747 | PerlIO_fdopen(int fd, const char *mode) | |
748 | { | |
749 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
750 | if (!_perlio) |
751 | PerlIO_stdstreams(); | |
06da4f11 | 752 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b NIS |
753 | } |
754 | ||
6f9d8c32 NIS |
755 | #undef PerlIO_open |
756 | PerlIO * | |
757 | PerlIO_open(const char *path, const char *mode) | |
758 | { | |
9e353e3b | 759 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
760 | if (!_perlio) |
761 | PerlIO_stdstreams(); | |
06da4f11 | 762 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 NIS |
763 | } |
764 | ||
9e353e3b NIS |
765 | #undef PerlIO_reopen |
766 | PerlIO * | |
767 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 768 | { |
9e353e3b | 769 | if (f) |
6f9d8c32 | 770 | { |
9e353e3b NIS |
771 | PerlIO_flush(f); |
772 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
773 | { | |
33af2bc7 | 774 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode,Nullch,0) == 0) |
06da4f11 | 775 | return f; |
9e353e3b NIS |
776 | } |
777 | return NULL; | |
6f9d8c32 | 778 | } |
9e353e3b NIS |
779 | else |
780 | return PerlIO_open(path,mode); | |
760ac839 LW |
781 | } |
782 | ||
9e353e3b NIS |
783 | #undef PerlIO_read |
784 | SSize_t | |
785 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 786 | { |
9e353e3b | 787 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
788 | } |
789 | ||
313ca112 NIS |
790 | #undef PerlIO_unread |
791 | SSize_t | |
792 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 793 | { |
313ca112 | 794 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
795 | } |
796 | ||
9e353e3b NIS |
797 | #undef PerlIO_write |
798 | SSize_t | |
799 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 800 | { |
9e353e3b | 801 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
802 | } |
803 | ||
9e353e3b | 804 | #undef PerlIO_seek |
6f9d8c32 | 805 | int |
9e353e3b | 806 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 807 | { |
9e353e3b | 808 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
809 | } |
810 | ||
9e353e3b NIS |
811 | #undef PerlIO_tell |
812 | Off_t | |
813 | PerlIO_tell(PerlIO *f) | |
760ac839 | 814 | { |
9e353e3b | 815 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
816 | } |
817 | ||
9e353e3b | 818 | #undef PerlIO_flush |
6f9d8c32 | 819 | int |
9e353e3b | 820 | PerlIO_flush(PerlIO *f) |
760ac839 | 821 | { |
6f9d8c32 NIS |
822 | if (f) |
823 | { | |
9e353e3b | 824 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 825 | } |
9e353e3b | 826 | else |
6f9d8c32 | 827 | { |
05d1247b | 828 | PerlIO **table = &_perlio; |
9e353e3b | 829 | int code = 0; |
05d1247b | 830 | while ((f = *table)) |
6f9d8c32 | 831 | { |
05d1247b NIS |
832 | int i; |
833 | table = (PerlIO **)(f++); | |
834 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
835 | { |
836 | if (*f && PerlIO_flush(f) != 0) | |
837 | code = -1; | |
05d1247b | 838 | f++; |
9e353e3b | 839 | } |
6f9d8c32 | 840 | } |
9e353e3b | 841 | return code; |
6f9d8c32 | 842 | } |
760ac839 LW |
843 | } |
844 | ||
06da4f11 NIS |
845 | #undef PerlIO_fill |
846 | int | |
847 | PerlIO_fill(PerlIO *f) | |
848 | { | |
849 | return (*PerlIOBase(f)->tab->Fill)(f); | |
850 | } | |
851 | ||
f3862f8b NIS |
852 | #undef PerlIO_isutf8 |
853 | int | |
854 | PerlIO_isutf8(PerlIO *f) | |
855 | { | |
856 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
857 | } | |
858 | ||
9e353e3b | 859 | #undef PerlIO_eof |
6f9d8c32 | 860 | int |
9e353e3b | 861 | PerlIO_eof(PerlIO *f) |
760ac839 | 862 | { |
9e353e3b NIS |
863 | return (*PerlIOBase(f)->tab->Eof)(f); |
864 | } | |
865 | ||
866 | #undef PerlIO_error | |
867 | int | |
868 | PerlIO_error(PerlIO *f) | |
869 | { | |
870 | return (*PerlIOBase(f)->tab->Error)(f); | |
871 | } | |
872 | ||
873 | #undef PerlIO_clearerr | |
874 | void | |
875 | PerlIO_clearerr(PerlIO *f) | |
876 | { | |
f5b9d040 NIS |
877 | if (f && *f) |
878 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
9e353e3b NIS |
879 | } |
880 | ||
881 | #undef PerlIO_setlinebuf | |
882 | void | |
883 | PerlIO_setlinebuf(PerlIO *f) | |
884 | { | |
885 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
886 | } | |
887 | ||
888 | #undef PerlIO_has_base | |
889 | int | |
890 | PerlIO_has_base(PerlIO *f) | |
891 | { | |
892 | if (f && *f) | |
6f9d8c32 | 893 | { |
9e353e3b | 894 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 895 | } |
9e353e3b | 896 | return 0; |
760ac839 LW |
897 | } |
898 | ||
9e353e3b NIS |
899 | #undef PerlIO_fast_gets |
900 | int | |
901 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 902 | { |
5e2ab84b | 903 | if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) |
6f9d8c32 | 904 | { |
5e2ab84b NIS |
905 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
906 | return (tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 907 | } |
9e353e3b NIS |
908 | return 0; |
909 | } | |
910 | ||
911 | #undef PerlIO_has_cntptr | |
912 | int | |
913 | PerlIO_has_cntptr(PerlIO *f) | |
914 | { | |
915 | if (f && *f) | |
916 | { | |
917 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
918 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
919 | } | |
920 | return 0; | |
921 | } | |
922 | ||
923 | #undef PerlIO_canset_cnt | |
924 | int | |
925 | PerlIO_canset_cnt(PerlIO *f) | |
926 | { | |
927 | if (f && *f) | |
928 | { | |
c7fc522f NIS |
929 | PerlIOl *l = PerlIOBase(f); |
930 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 931 | } |
c7fc522f | 932 | return 0; |
760ac839 LW |
933 | } |
934 | ||
935 | #undef PerlIO_get_base | |
888911fc | 936 | STDCHAR * |
a20bf0c3 | 937 | PerlIO_get_base(PerlIO *f) |
760ac839 | 938 | { |
9e353e3b NIS |
939 | return (*PerlIOBase(f)->tab->Get_base)(f); |
940 | } | |
941 | ||
942 | #undef PerlIO_get_bufsiz | |
943 | int | |
944 | PerlIO_get_bufsiz(PerlIO *f) | |
945 | { | |
946 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
947 | } | |
948 | ||
949 | #undef PerlIO_get_ptr | |
950 | STDCHAR * | |
951 | PerlIO_get_ptr(PerlIO *f) | |
952 | { | |
5e2ab84b NIS |
953 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
954 | if (tab->Get_ptr == NULL) | |
955 | return NULL; | |
956 | return (*tab->Get_ptr)(f); | |
9e353e3b NIS |
957 | } |
958 | ||
959 | #undef PerlIO_get_cnt | |
05d1247b | 960 | int |
9e353e3b NIS |
961 | PerlIO_get_cnt(PerlIO *f) |
962 | { | |
5e2ab84b NIS |
963 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
964 | if (tab->Get_cnt == NULL) | |
965 | return 0; | |
966 | return (*tab->Get_cnt)(f); | |
9e353e3b NIS |
967 | } |
968 | ||
969 | #undef PerlIO_set_cnt | |
970 | void | |
05d1247b | 971 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 972 | { |
f3862f8b | 973 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
974 | } |
975 | ||
976 | #undef PerlIO_set_ptrcnt | |
977 | void | |
05d1247b | 978 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 979 | { |
5e2ab84b NIS |
980 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
981 | if (tab->Set_ptrcnt == NULL) | |
982 | { | |
983 | dTHX; | |
984 | Perl_croak(aTHX_ "PerlIO buffer snooping abuse"); | |
985 | } | |
f3862f8b | 986 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
987 | } |
988 | ||
989 | /*--------------------------------------------------------------------------------------*/ | |
dfebf958 NIS |
990 | /* utf8 and raw dummy layers */ |
991 | ||
992 | PerlIO * | |
993 | PerlIOUtf8_fdopen(PerlIO_funcs *self, int fd,const char *mode) | |
994 | { | |
995 | PerlIO_funcs *tab = PerlIO_default_layer(-2); | |
996 | PerlIO *f = (*tab->Fdopen)(tab,fd,mode); | |
997 | if (f) | |
998 | { | |
999 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1000 | } | |
1001 | return f; | |
1002 | } | |
1003 | ||
1004 | PerlIO * | |
1005 | PerlIOUtf8_open(PerlIO_funcs *self, const char *path,const char *mode) | |
1006 | { | |
1007 | PerlIO_funcs *tab = PerlIO_default_layer(-2); | |
1008 | PerlIO *f = (*tab->Open)(tab,path,mode); | |
1009 | if (f) | |
1010 | { | |
1011 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1012 | } | |
1013 | return f; | |
1014 | } | |
1015 | ||
1016 | PerlIO_funcs PerlIO_utf8 = { | |
1017 | "utf8", | |
1018 | sizeof(PerlIOl), | |
1019 | PERLIO_K_DUMMY|PERLIO_K_BUFFERED, | |
1020 | NULL, | |
1021 | PerlIOUtf8_fdopen, | |
1022 | PerlIOUtf8_open, | |
1023 | NULL, | |
1024 | PerlIOUtf8_pushed, | |
1025 | NULL, | |
1026 | NULL, | |
1027 | NULL, | |
1028 | NULL, | |
1029 | NULL, | |
1030 | NULL, | |
1031 | NULL, | |
1032 | NULL, /* flush */ | |
1033 | NULL, /* fill */ | |
1034 | NULL, | |
1035 | NULL, | |
1036 | NULL, | |
1037 | NULL, | |
1038 | NULL, /* get_base */ | |
1039 | NULL, /* get_bufsiz */ | |
1040 | NULL, /* get_ptr */ | |
1041 | NULL, /* get_cnt */ | |
1042 | NULL, /* set_ptrcnt */ | |
1043 | }; | |
1044 | ||
1045 | PerlIO * | |
1046 | PerlIORaw_fdopen(PerlIO_funcs *self, int fd,const char *mode) | |
1047 | { | |
1048 | PerlIO_funcs *tab = PerlIO_default_layer(0); | |
1049 | return (*tab->Fdopen)(tab,fd,mode); | |
1050 | } | |
1051 | ||
1052 | PerlIO * | |
1053 | PerlIORaw_open(PerlIO_funcs *self, const char *path,const char *mode) | |
1054 | { | |
1055 | PerlIO_funcs *tab = PerlIO_default_layer(0); | |
1056 | return (*tab->Open)(tab,path,mode); | |
1057 | } | |
1058 | ||
1059 | PerlIO_funcs PerlIO_raw = { | |
1060 | "raw", | |
1061 | sizeof(PerlIOl), | |
1062 | PERLIO_K_DUMMY|PERLIO_K_RAW, | |
1063 | NULL, | |
1064 | PerlIORaw_fdopen, | |
1065 | PerlIORaw_open, | |
1066 | NULL, | |
1067 | PerlIORaw_pushed, | |
1068 | NULL, | |
1069 | NULL, | |
1070 | NULL, | |
1071 | NULL, | |
1072 | NULL, | |
1073 | NULL, | |
1074 | NULL, | |
1075 | NULL, /* flush */ | |
1076 | NULL, /* fill */ | |
1077 | NULL, | |
1078 | NULL, | |
1079 | NULL, | |
1080 | NULL, | |
1081 | NULL, /* get_base */ | |
1082 | NULL, /* get_bufsiz */ | |
1083 | NULL, /* get_ptr */ | |
1084 | NULL, /* get_cnt */ | |
1085 | NULL, /* set_ptrcnt */ | |
1086 | }; | |
1087 | /*--------------------------------------------------------------------------------------*/ | |
1088 | /*--------------------------------------------------------------------------------------*/ | |
9e353e3b NIS |
1089 | /* "Methods" of the "base class" */ |
1090 | ||
1091 | IV | |
1092 | PerlIOBase_fileno(PerlIO *f) | |
1093 | { | |
1094 | return PerlIO_fileno(PerlIONext(f)); | |
1095 | } | |
1096 | ||
f5b9d040 NIS |
1097 | char * |
1098 | PerlIO_modestr(PerlIO *f,char *buf) | |
1099 | { | |
1100 | char *s = buf; | |
1101 | IV flags = PerlIOBase(f)->flags; | |
5f1a76d0 NIS |
1102 | if (flags & PERLIO_F_APPEND) |
1103 | { | |
1104 | *s++ = 'a'; | |
1105 | if (flags & PERLIO_F_CANREAD) | |
1106 | { | |
1107 | *s++ = '+'; | |
1108 | } | |
766a733e | 1109 | } |
5f1a76d0 NIS |
1110 | else if (flags & PERLIO_F_CANREAD) |
1111 | { | |
1112 | *s++ = 'r'; | |
1113 | if (flags & PERLIO_F_CANWRITE) | |
1114 | *s++ = '+'; | |
1115 | } | |
1116 | else if (flags & PERLIO_F_CANWRITE) | |
1117 | { | |
1118 | *s++ = 'w'; | |
1119 | if (flags & PERLIO_F_CANREAD) | |
1120 | { | |
1121 | *s++ = '+'; | |
1122 | } | |
1123 | } | |
1124 | #if O_TEXT != O_BINARY | |
1125 | if (!(flags & PERLIO_F_CRLF)) | |
a4d3c1d3 | 1126 | *s++ = 'b'; |
5f1a76d0 | 1127 | #endif |
f5b9d040 NIS |
1128 | *s = '\0'; |
1129 | return buf; | |
1130 | } | |
1131 | ||
76ced9ad | 1132 | IV |
33af2bc7 | 1133 | PerlIOBase_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) |
9e353e3b | 1134 | { |
76ced9ad | 1135 | PerlIOl *l = PerlIOBase(f); |
f5b9d040 NIS |
1136 | const char *omode = mode; |
1137 | char temp[8]; | |
5e2ab84b | 1138 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
76ced9ad | 1139 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
f5b9d040 | 1140 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
5e2ab84b NIS |
1141 | if (tab->Set_ptrcnt != NULL) |
1142 | l->flags |= PERLIO_F_FASTGETS; | |
76ced9ad | 1143 | if (mode) |
6f9d8c32 | 1144 | { |
76ced9ad | 1145 | switch (*mode++) |
06da4f11 | 1146 | { |
76ced9ad | 1147 | case 'r': |
f5b9d040 | 1148 | l->flags |= PERLIO_F_CANREAD; |
76ced9ad NIS |
1149 | break; |
1150 | case 'a': | |
f5b9d040 | 1151 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1152 | break; |
1153 | case 'w': | |
f5b9d040 | 1154 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1155 | break; |
1156 | default: | |
1157 | errno = EINVAL; | |
1158 | return -1; | |
1159 | } | |
1160 | while (*mode) | |
1161 | { | |
1162 | switch (*mode++) | |
1163 | { | |
1164 | case '+': | |
1165 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
1166 | break; | |
1167 | case 'b': | |
f5b9d040 NIS |
1168 | l->flags &= ~PERLIO_F_CRLF; |
1169 | break; | |
1170 | case 't': | |
1171 | l->flags |= PERLIO_F_CRLF; | |
76ced9ad NIS |
1172 | break; |
1173 | default: | |
1174 | errno = EINVAL; | |
1175 | return -1; | |
1176 | } | |
06da4f11 | 1177 | } |
6f9d8c32 | 1178 | } |
76ced9ad NIS |
1179 | else |
1180 | { | |
1181 | if (l->next) | |
1182 | { | |
1183 | l->flags |= l->next->flags & | |
f5b9d040 | 1184 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad NIS |
1185 | } |
1186 | } | |
5e2ab84b | 1187 | #if 0 |
4659c93f | 1188 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08"UVxf" (%s)\n", |
f5b9d040 | 1189 | f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)", |
a4d3c1d3 | 1190 | l->flags,PerlIO_modestr(f,temp)); |
5e2ab84b | 1191 | #endif |
76ced9ad NIS |
1192 | return 0; |
1193 | } | |
1194 | ||
1195 | IV | |
1196 | PerlIOBase_popped(PerlIO *f) | |
1197 | { | |
1198 | return 0; | |
760ac839 LW |
1199 | } |
1200 | ||
9e353e3b NIS |
1201 | SSize_t |
1202 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1203 | { | |
1204 | Off_t old = PerlIO_tell(f); | |
72e44f29 | 1205 | SSize_t done; |
33af2bc7 | 1206 | PerlIO_push(f,&PerlIO_pending,"r",Nullch,0); |
72e44f29 NIS |
1207 | done = PerlIOBuf_unread(f,vbuf,count); |
1208 | PerlIOSelf(f,PerlIOBuf)->posn = old - done; | |
1209 | return done; | |
9e353e3b NIS |
1210 | } |
1211 | ||
1212 | IV | |
06da4f11 | 1213 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
1214 | { |
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | IV | |
06da4f11 NIS |
1219 | PerlIOBase_noop_fail(PerlIO *f) |
1220 | { | |
1221 | return -1; | |
1222 | } | |
1223 | ||
1224 | IV | |
9e353e3b NIS |
1225 | PerlIOBase_close(PerlIO *f) |
1226 | { | |
1227 | IV code = 0; | |
f5b9d040 | 1228 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
1229 | if (PerlIO_flush(f) != 0) |
1230 | code = -1; | |
f5b9d040 | 1231 | if (n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b NIS |
1232 | code = -1; |
1233 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
1234 | return code; | |
1235 | } | |
1236 | ||
1237 | IV | |
1238 | PerlIOBase_eof(PerlIO *f) | |
1239 | { | |
1240 | if (f && *f) | |
1241 | { | |
1242 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
1243 | } | |
1244 | return 1; | |
1245 | } | |
1246 | ||
1247 | IV | |
1248 | PerlIOBase_error(PerlIO *f) | |
1249 | { | |
1250 | if (f && *f) | |
1251 | { | |
1252 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
1253 | } | |
1254 | return 1; | |
1255 | } | |
1256 | ||
1257 | void | |
1258 | PerlIOBase_clearerr(PerlIO *f) | |
1259 | { | |
1260 | if (f && *f) | |
1261 | { | |
f5b9d040 NIS |
1262 | PerlIO *n = PerlIONext(f); |
1263 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); | |
1264 | if (n) | |
1265 | PerlIO_clearerr(n); | |
9e353e3b NIS |
1266 | } |
1267 | } | |
1268 | ||
1269 | void | |
1270 | PerlIOBase_setlinebuf(PerlIO *f) | |
1271 | { | |
1272 | ||
1273 | } | |
1274 | ||
9e353e3b NIS |
1275 | /*--------------------------------------------------------------------------------------*/ |
1276 | /* Bottom-most level for UNIX-like case */ | |
1277 | ||
1278 | typedef struct | |
1279 | { | |
1280 | struct _PerlIO base; /* The generic part */ | |
1281 | int fd; /* UNIX like file descriptor */ | |
1282 | int oflags; /* open/fcntl flags */ | |
1283 | } PerlIOUnix; | |
1284 | ||
6f9d8c32 | 1285 | int |
9e353e3b | 1286 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 1287 | { |
9e353e3b NIS |
1288 | int oflags = -1; |
1289 | switch(*mode) | |
1290 | { | |
1291 | case 'r': | |
1292 | oflags = O_RDONLY; | |
1293 | if (*++mode == '+') | |
1294 | { | |
1295 | oflags = O_RDWR; | |
1296 | mode++; | |
1297 | } | |
1298 | break; | |
1299 | ||
1300 | case 'w': | |
1301 | oflags = O_CREAT|O_TRUNC; | |
1302 | if (*++mode == '+') | |
1303 | { | |
1304 | oflags |= O_RDWR; | |
1305 | mode++; | |
1306 | } | |
1307 | else | |
1308 | oflags |= O_WRONLY; | |
1309 | break; | |
1310 | ||
1311 | case 'a': | |
1312 | oflags = O_CREAT|O_APPEND; | |
1313 | if (*++mode == '+') | |
1314 | { | |
1315 | oflags |= O_RDWR; | |
1316 | mode++; | |
1317 | } | |
1318 | else | |
1319 | oflags |= O_WRONLY; | |
1320 | break; | |
1321 | } | |
83b075c3 NIS |
1322 | if (*mode == 'b') |
1323 | { | |
f5b9d040 NIS |
1324 | oflags |= O_BINARY; |
1325 | oflags &= ~O_TEXT; | |
1326 | mode++; | |
1327 | } | |
1328 | else if (*mode == 't') | |
1329 | { | |
1330 | oflags |= O_TEXT; | |
1331 | oflags &= ~O_BINARY; | |
60382766 NIS |
1332 | mode++; |
1333 | } | |
99efab12 NIS |
1334 | /* Always open in binary mode */ |
1335 | oflags |= O_BINARY; | |
9e353e3b | 1336 | if (*mode || oflags == -1) |
6f9d8c32 | 1337 | { |
9e353e3b NIS |
1338 | errno = EINVAL; |
1339 | oflags = -1; | |
6f9d8c32 | 1340 | } |
9e353e3b NIS |
1341 | return oflags; |
1342 | } | |
1343 | ||
1344 | IV | |
1345 | PerlIOUnix_fileno(PerlIO *f) | |
1346 | { | |
1347 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
1348 | } | |
1349 | ||
1350 | PerlIO * | |
06da4f11 | 1351 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b | 1352 | { |
5f1a76d0 | 1353 | dTHX; |
9e353e3b | 1354 | PerlIO *f = NULL; |
c7fc522f NIS |
1355 | if (*mode == 'I') |
1356 | mode++; | |
9e353e3b NIS |
1357 | if (fd >= 0) |
1358 | { | |
1359 | int oflags = PerlIOUnix_oflags(mode); | |
1360 | if (oflags != -1) | |
1361 | { | |
33af2bc7 | 1362 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOUnix); |
9e353e3b NIS |
1363 | s->fd = fd; |
1364 | s->oflags = oflags; | |
1365 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1366 | } | |
1367 | } | |
1368 | return f; | |
1369 | } | |
1370 | ||
1371 | PerlIO * | |
06da4f11 | 1372 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b | 1373 | { |
adb71456 | 1374 | dTHX; |
9e353e3b NIS |
1375 | PerlIO *f = NULL; |
1376 | int oflags = PerlIOUnix_oflags(mode); | |
1377 | if (oflags != -1) | |
1378 | { | |
00b02797 | 1379 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
1380 | if (fd >= 0) |
1381 | { | |
33af2bc7 | 1382 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOUnix); |
9e353e3b NIS |
1383 | s->fd = fd; |
1384 | s->oflags = oflags; | |
1385 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1386 | } | |
1387 | } | |
1388 | return f; | |
760ac839 LW |
1389 | } |
1390 | ||
760ac839 | 1391 | int |
9e353e3b | 1392 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 1393 | { |
9e353e3b NIS |
1394 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
1395 | int oflags = PerlIOUnix_oflags(mode); | |
1396 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
1397 | (*PerlIOBase(f)->tab->Close)(f); | |
1398 | if (oflags != -1) | |
1399 | { | |
adb71456 | 1400 | dTHX; |
00b02797 | 1401 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
1402 | if (fd >= 0) |
1403 | { | |
1404 | s->fd = fd; | |
1405 | s->oflags = oflags; | |
1406 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1407 | return 0; | |
1408 | } | |
1409 | } | |
1410 | return -1; | |
1411 | } | |
1412 | ||
1413 | SSize_t | |
1414 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
1415 | { | |
adb71456 | 1416 | dTHX; |
9e353e3b | 1417 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 NIS |
1418 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1419 | return 0; | |
9e353e3b NIS |
1420 | while (1) |
1421 | { | |
00b02797 | 1422 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 1423 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1424 | { |
1425 | if (len < 0) | |
1426 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1427 | else if (len == 0 && count != 0) | |
1428 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1429 | return len; | |
1430 | } | |
0a8e0eff | 1431 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1432 | } |
1433 | } | |
1434 | ||
1435 | SSize_t | |
1436 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
1437 | { | |
adb71456 | 1438 | dTHX; |
9e353e3b NIS |
1439 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1440 | while (1) | |
1441 | { | |
00b02797 | 1442 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 1443 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1444 | { |
1445 | if (len < 0) | |
1446 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1447 | return len; | |
1448 | } | |
0a8e0eff | 1449 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1450 | } |
1451 | } | |
1452 | ||
1453 | IV | |
1454 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
1455 | { | |
adb71456 | 1456 | dTHX; |
00b02797 | 1457 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 1458 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
1459 | return (new == (Off_t) -1) ? -1 : 0; |
1460 | } | |
1461 | ||
1462 | Off_t | |
1463 | PerlIOUnix_tell(PerlIO *f) | |
1464 | { | |
adb71456 | 1465 | dTHX; |
766a733e | 1466 | Off_t posn = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
00b02797 | 1467 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
1468 | } |
1469 | ||
1470 | IV | |
1471 | PerlIOUnix_close(PerlIO *f) | |
1472 | { | |
adb71456 | 1473 | dTHX; |
9e353e3b NIS |
1474 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1475 | int code = 0; | |
00b02797 | 1476 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
1477 | { |
1478 | if (errno != EINTR) | |
1479 | { | |
1480 | code = -1; | |
1481 | break; | |
1482 | } | |
0a8e0eff | 1483 | PERL_ASYNC_CHECK(); |
9e353e3b NIS |
1484 | } |
1485 | if (code == 0) | |
1486 | { | |
1487 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
1488 | } | |
1489 | return code; | |
1490 | } | |
1491 | ||
1492 | PerlIO_funcs PerlIO_unix = { | |
1493 | "unix", | |
1494 | sizeof(PerlIOUnix), | |
f5b9d040 | 1495 | PERLIO_K_RAW, |
9e353e3b NIS |
1496 | PerlIOUnix_fileno, |
1497 | PerlIOUnix_fdopen, | |
1498 | PerlIOUnix_open, | |
1499 | PerlIOUnix_reopen, | |
06da4f11 NIS |
1500 | PerlIOBase_pushed, |
1501 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1502 | PerlIOUnix_read, |
1503 | PerlIOBase_unread, | |
1504 | PerlIOUnix_write, | |
1505 | PerlIOUnix_seek, | |
1506 | PerlIOUnix_tell, | |
1507 | PerlIOUnix_close, | |
76ced9ad NIS |
1508 | PerlIOBase_noop_ok, /* flush */ |
1509 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
1510 | PerlIOBase_eof, |
1511 | PerlIOBase_error, | |
1512 | PerlIOBase_clearerr, | |
1513 | PerlIOBase_setlinebuf, | |
1514 | NULL, /* get_base */ | |
1515 | NULL, /* get_bufsiz */ | |
1516 | NULL, /* get_ptr */ | |
1517 | NULL, /* get_cnt */ | |
1518 | NULL, /* set_ptrcnt */ | |
1519 | }; | |
1520 | ||
1521 | /*--------------------------------------------------------------------------------------*/ | |
1522 | /* stdio as a layer */ | |
1523 | ||
1524 | typedef struct | |
1525 | { | |
1526 | struct _PerlIO base; | |
1527 | FILE * stdio; /* The stream */ | |
1528 | } PerlIOStdio; | |
1529 | ||
1530 | IV | |
1531 | PerlIOStdio_fileno(PerlIO *f) | |
1532 | { | |
adb71456 | 1533 | dTHX; |
eaf8b698 | 1534 | return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1535 | } |
1536 | ||
766a733e | 1537 | char * |
f5b9d040 NIS |
1538 | PerlIOStdio_mode(const char *mode,char *tmode) |
1539 | { | |
766a733e NIS |
1540 | char *ret = tmode; |
1541 | while (*mode) | |
1542 | { | |
1543 | *tmode++ = *mode++; | |
1544 | } | |
f5b9d040 NIS |
1545 | if (O_BINARY != O_TEXT) |
1546 | { | |
f5b9d040 | 1547 | *tmode++ = 'b'; |
f5b9d040 | 1548 | } |
766a733e | 1549 | *tmode = '\0'; |
f5b9d040 NIS |
1550 | return ret; |
1551 | } | |
9e353e3b NIS |
1552 | |
1553 | PerlIO * | |
06da4f11 | 1554 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b | 1555 | { |
adb71456 | 1556 | dTHX; |
9e353e3b | 1557 | PerlIO *f = NULL; |
c7fc522f | 1558 | int init = 0; |
f5b9d040 | 1559 | char tmode[8]; |
c7fc522f NIS |
1560 | if (*mode == 'I') |
1561 | { | |
1562 | init = 1; | |
1563 | mode++; | |
1564 | } | |
9e353e3b NIS |
1565 | if (fd >= 0) |
1566 | { | |
c7fc522f NIS |
1567 | FILE *stdio = NULL; |
1568 | if (init) | |
1569 | { | |
1570 | switch(fd) | |
1571 | { | |
1572 | case 0: | |
eaf8b698 | 1573 | stdio = PerlSIO_stdin; |
c7fc522f NIS |
1574 | break; |
1575 | case 1: | |
eaf8b698 | 1576 | stdio = PerlSIO_stdout; |
c7fc522f NIS |
1577 | break; |
1578 | case 2: | |
eaf8b698 | 1579 | stdio = PerlSIO_stderr; |
c7fc522f NIS |
1580 | break; |
1581 | } | |
1582 | } | |
1583 | else | |
f5b9d040 | 1584 | { |
eaf8b698 | 1585 | stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); |
f5b9d040 | 1586 | } |
9e353e3b NIS |
1587 | if (stdio) |
1588 | { | |
33af2bc7 | 1589 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOStdio); |
9e353e3b NIS |
1590 | s->stdio = stdio; |
1591 | } | |
1592 | } | |
1593 | return f; | |
1594 | } | |
1595 | ||
1596 | #undef PerlIO_importFILE | |
1597 | PerlIO * | |
1598 | PerlIO_importFILE(FILE *stdio, int fl) | |
1599 | { | |
5f1a76d0 | 1600 | dTHX; |
9e353e3b NIS |
1601 | PerlIO *f = NULL; |
1602 | if (stdio) | |
1603 | { | |
33af2bc7 | 1604 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"r+",Nullch,0),PerlIOStdio); |
9e353e3b NIS |
1605 | s->stdio = stdio; |
1606 | } | |
1607 | return f; | |
1608 | } | |
1609 | ||
1610 | PerlIO * | |
06da4f11 | 1611 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b | 1612 | { |
adb71456 | 1613 | dTHX; |
9e353e3b | 1614 | PerlIO *f = NULL; |
eaf8b698 | 1615 | FILE *stdio = PerlSIO_fopen(path,mode); |
9e353e3b NIS |
1616 | if (stdio) |
1617 | { | |
f5b9d040 | 1618 | char tmode[8]; |
5f1a76d0 | 1619 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX), self, |
33af2bc7 | 1620 | (mode = PerlIOStdio_mode(mode,tmode)),Nullch,0), |
f5b9d040 | 1621 | PerlIOStdio); |
9e353e3b NIS |
1622 | s->stdio = stdio; |
1623 | } | |
1624 | return f; | |
760ac839 LW |
1625 | } |
1626 | ||
6f9d8c32 | 1627 | int |
9e353e3b NIS |
1628 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1629 | { | |
adb71456 | 1630 | dTHX; |
9e353e3b | 1631 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
f5b9d040 | 1632 | char tmode[8]; |
eaf8b698 | 1633 | FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); |
9e353e3b NIS |
1634 | if (!s->stdio) |
1635 | return -1; | |
1636 | s->stdio = stdio; | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | SSize_t | |
1641 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1642 | { | |
adb71456 | 1643 | dTHX; |
9e353e3b | 1644 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f | 1645 | SSize_t got = 0; |
9e353e3b NIS |
1646 | if (count == 1) |
1647 | { | |
1648 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1649 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1650 | * Linux's stdio does not do that for fread() | |
1651 | */ | |
eaf8b698 | 1652 | int ch = PerlSIO_fgetc(s); |
9e353e3b NIS |
1653 | if (ch != EOF) |
1654 | { | |
1655 | *buf = ch; | |
c7fc522f | 1656 | got = 1; |
9e353e3b | 1657 | } |
9e353e3b | 1658 | } |
c7fc522f | 1659 | else |
eaf8b698 | 1660 | got = PerlSIO_fread(vbuf,1,count,s); |
c7fc522f | 1661 | return got; |
9e353e3b NIS |
1662 | } |
1663 | ||
1664 | SSize_t | |
1665 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1666 | { | |
adb71456 | 1667 | dTHX; |
9e353e3b NIS |
1668 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
1669 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1670 | SSize_t unread = 0; | |
1671 | while (count > 0) | |
1672 | { | |
1673 | int ch = *buf-- & 0xff; | |
eaf8b698 | 1674 | if (PerlSIO_ungetc(ch,s) != ch) |
9e353e3b NIS |
1675 | break; |
1676 | unread++; | |
1677 | count--; | |
1678 | } | |
1679 | return unread; | |
1680 | } | |
1681 | ||
1682 | SSize_t | |
1683 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1684 | { | |
adb71456 | 1685 | dTHX; |
eaf8b698 | 1686 | return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1687 | } |
1688 | ||
1689 | IV | |
1690 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1691 | { | |
adb71456 | 1692 | dTHX; |
c7fc522f | 1693 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1694 | return PerlSIO_fseek(stdio,offset,whence); |
9e353e3b NIS |
1695 | } |
1696 | ||
1697 | Off_t | |
1698 | PerlIOStdio_tell(PerlIO *f) | |
1699 | { | |
adb71456 | 1700 | dTHX; |
c7fc522f | 1701 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1702 | return PerlSIO_ftell(stdio); |
9e353e3b NIS |
1703 | } |
1704 | ||
1705 | IV | |
1706 | PerlIOStdio_close(PerlIO *f) | |
1707 | { | |
adb71456 | 1708 | dTHX; |
8e4bc33b | 1709 | #ifdef HAS_SOCKET |
cf829ab0 | 1710 | int optval, optlen = sizeof(int); |
8e4bc33b | 1711 | #endif |
3789aae2 | 1712 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 | 1713 | return( |
8e4bc33b | 1714 | #ifdef HAS_SOCKET |
a4d3c1d3 | 1715 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ? |
eaf8b698 | 1716 | PerlSIO_fclose(stdio) : |
8e4bc33b YST |
1717 | close(PerlIO_fileno(f)) |
1718 | #else | |
1719 | PerlSIO_fclose(stdio) | |
1720 | #endif | |
1721 | ); | |
1722 | ||
9e353e3b NIS |
1723 | } |
1724 | ||
1725 | IV | |
1726 | PerlIOStdio_flush(PerlIO *f) | |
1727 | { | |
adb71456 | 1728 | dTHX; |
9e353e3b | 1729 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 NIS |
1730 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
1731 | { | |
eaf8b698 | 1732 | return PerlSIO_fflush(stdio); |
88b61e10 NIS |
1733 | } |
1734 | else | |
1735 | { | |
1736 | #if 0 | |
1737 | /* FIXME: This discards ungetc() and pre-read stuff which is | |
1738 | not right if this is just a "sync" from a layer above | |
1739 | Suspect right design is to do _this_ but not have layer above | |
1740 | flush this layer read-to-read | |
1741 | */ | |
1742 | /* Not writeable - sync by attempting a seek */ | |
1743 | int err = errno; | |
eaf8b698 | 1744 | if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
88b61e10 NIS |
1745 | errno = err; |
1746 | #endif | |
1747 | } | |
1748 | return 0; | |
9e353e3b NIS |
1749 | } |
1750 | ||
1751 | IV | |
06da4f11 NIS |
1752 | PerlIOStdio_fill(PerlIO *f) |
1753 | { | |
adb71456 | 1754 | dTHX; |
06da4f11 NIS |
1755 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1756 | int c; | |
3789aae2 NIS |
1757 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
1758 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
1759 | { | |
eaf8b698 | 1760 | if (PerlSIO_fflush(stdio) != 0) |
3789aae2 NIS |
1761 | return EOF; |
1762 | } | |
eaf8b698 NIS |
1763 | c = PerlSIO_fgetc(stdio); |
1764 | if (c == EOF || PerlSIO_ungetc(c,stdio) != c) | |
06da4f11 NIS |
1765 | return EOF; |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | IV | |
9e353e3b NIS |
1770 | PerlIOStdio_eof(PerlIO *f) |
1771 | { | |
adb71456 | 1772 | dTHX; |
eaf8b698 | 1773 | return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1774 | } |
1775 | ||
1776 | IV | |
1777 | PerlIOStdio_error(PerlIO *f) | |
1778 | { | |
adb71456 | 1779 | dTHX; |
eaf8b698 | 1780 | return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1781 | } |
1782 | ||
1783 | void | |
1784 | PerlIOStdio_clearerr(PerlIO *f) | |
1785 | { | |
adb71456 | 1786 | dTHX; |
eaf8b698 | 1787 | PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1788 | } |
1789 | ||
1790 | void | |
1791 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1792 | { | |
adb71456 | 1793 | dTHX; |
9e353e3b | 1794 | #ifdef HAS_SETLINEBUF |
eaf8b698 | 1795 | PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b | 1796 | #else |
eaf8b698 | 1797 | PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b NIS |
1798 | #endif |
1799 | } | |
1800 | ||
1801 | #ifdef FILE_base | |
1802 | STDCHAR * | |
1803 | PerlIOStdio_get_base(PerlIO *f) | |
1804 | { | |
adb71456 | 1805 | dTHX; |
9e353e3b | 1806 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1807 | return PerlSIO_get_base(stdio); |
9e353e3b NIS |
1808 | } |
1809 | ||
1810 | Size_t | |
1811 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1812 | { | |
adb71456 | 1813 | dTHX; |
9e353e3b | 1814 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1815 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b NIS |
1816 | } |
1817 | #endif | |
1818 | ||
1819 | #ifdef USE_STDIO_PTR | |
1820 | STDCHAR * | |
1821 | PerlIOStdio_get_ptr(PerlIO *f) | |
1822 | { | |
adb71456 | 1823 | dTHX; |
9e353e3b | 1824 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1825 | return PerlSIO_get_ptr(stdio); |
9e353e3b NIS |
1826 | } |
1827 | ||
1828 | SSize_t | |
1829 | PerlIOStdio_get_cnt(PerlIO *f) | |
1830 | { | |
adb71456 | 1831 | dTHX; |
9e353e3b | 1832 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1833 | return PerlSIO_get_cnt(stdio); |
9e353e3b NIS |
1834 | } |
1835 | ||
1836 | void | |
1837 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1838 | { | |
adb71456 | 1839 | dTHX; |
9e353e3b NIS |
1840 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1841 | if (ptr != NULL) | |
1842 | { | |
1843 | #ifdef STDIO_PTR_LVALUE | |
eaf8b698 | 1844 | PerlSIO_set_ptr(stdio,ptr); |
9e353e3b | 1845 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
eaf8b698 | 1846 | if (PerlSIO_get_cnt(stdio) != (cnt)) |
9e353e3b NIS |
1847 | { |
1848 | dTHX; | |
eaf8b698 | 1849 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
9e353e3b NIS |
1850 | } |
1851 | #endif | |
1852 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1853 | /* Setting ptr _does_ change cnt - we are done */ | |
1854 | return; | |
1855 | #endif | |
1856 | #else /* STDIO_PTR_LVALUE */ | |
eaf8b698 | 1857 | PerlProc_abort(); |
9e353e3b NIS |
1858 | #endif /* STDIO_PTR_LVALUE */ |
1859 | } | |
1860 | /* Now (or only) set cnt */ | |
1861 | #ifdef STDIO_CNT_LVALUE | |
eaf8b698 | 1862 | PerlSIO_set_cnt(stdio,cnt); |
9e353e3b NIS |
1863 | #else /* STDIO_CNT_LVALUE */ |
1864 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
eaf8b698 | 1865 | PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt)); |
9e353e3b | 1866 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
eaf8b698 | 1867 | PerlProc_abort(); |
9e353e3b NIS |
1868 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
1869 | #endif /* STDIO_CNT_LVALUE */ | |
1870 | } | |
1871 | ||
1872 | #endif | |
1873 | ||
1874 | PerlIO_funcs PerlIO_stdio = { | |
1875 | "stdio", | |
1876 | sizeof(PerlIOStdio), | |
f5b9d040 | 1877 | PERLIO_K_BUFFERED, |
9e353e3b NIS |
1878 | PerlIOStdio_fileno, |
1879 | PerlIOStdio_fdopen, | |
1880 | PerlIOStdio_open, | |
1881 | PerlIOStdio_reopen, | |
06da4f11 NIS |
1882 | PerlIOBase_pushed, |
1883 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1884 | PerlIOStdio_read, |
1885 | PerlIOStdio_unread, | |
1886 | PerlIOStdio_write, | |
1887 | PerlIOStdio_seek, | |
1888 | PerlIOStdio_tell, | |
1889 | PerlIOStdio_close, | |
1890 | PerlIOStdio_flush, | |
06da4f11 | 1891 | PerlIOStdio_fill, |
9e353e3b NIS |
1892 | PerlIOStdio_eof, |
1893 | PerlIOStdio_error, | |
1894 | PerlIOStdio_clearerr, | |
1895 | PerlIOStdio_setlinebuf, | |
1896 | #ifdef FILE_base | |
1897 | PerlIOStdio_get_base, | |
1898 | PerlIOStdio_get_bufsiz, | |
1899 | #else | |
1900 | NULL, | |
1901 | NULL, | |
1902 | #endif | |
1903 | #ifdef USE_STDIO_PTR | |
1904 | PerlIOStdio_get_ptr, | |
1905 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 1906 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
1907 | PerlIOStdio_set_ptrcnt |
1908 | #else /* STDIO_PTR_LVALUE */ | |
1909 | NULL | |
1910 | #endif /* STDIO_PTR_LVALUE */ | |
1911 | #else /* USE_STDIO_PTR */ | |
1912 | NULL, | |
1913 | NULL, | |
1914 | NULL | |
1915 | #endif /* USE_STDIO_PTR */ | |
1916 | }; | |
1917 | ||
1918 | #undef PerlIO_exportFILE | |
1919 | FILE * | |
1920 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1921 | { | |
f7e7eb72 | 1922 | FILE *stdio; |
9e353e3b | 1923 | PerlIO_flush(f); |
f7e7eb72 NIS |
1924 | stdio = fdopen(PerlIO_fileno(f),"r+"); |
1925 | if (stdio) | |
1926 | { | |
1927 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f,&PerlIO_stdio,"r+",Nullch,0),PerlIOStdio); | |
1928 | s->stdio = stdio; | |
1929 | } | |
1930 | return stdio; | |
9e353e3b NIS |
1931 | } |
1932 | ||
1933 | #undef PerlIO_findFILE | |
1934 | FILE * | |
1935 | PerlIO_findFILE(PerlIO *f) | |
1936 | { | |
f7e7eb72 NIS |
1937 | PerlIOl *l = *f; |
1938 | while (l) | |
1939 | { | |
1940 | if (l->tab == &PerlIO_stdio) | |
1941 | { | |
1942 | PerlIOStdio *s = PerlIOSelf(&l,PerlIOStdio); | |
1943 | return s->stdio; | |
1944 | } | |
1945 | l = *PerlIONext(&l); | |
1946 | } | |
9e353e3b NIS |
1947 | return PerlIO_exportFILE(f,0); |
1948 | } | |
1949 | ||
1950 | #undef PerlIO_releaseFILE | |
1951 | void | |
1952 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1953 | { | |
1954 | } | |
1955 | ||
1956 | /*--------------------------------------------------------------------------------------*/ | |
1957 | /* perlio buffer layer */ | |
1958 | ||
5e2ab84b | 1959 | IV |
33af2bc7 | 1960 | PerlIOBuf_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) |
5e2ab84b NIS |
1961 | { |
1962 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1963 | b->posn = PerlIO_tell(PerlIONext(f)); | |
33af2bc7 | 1964 | return PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b NIS |
1965 | } |
1966 | ||
9e353e3b | 1967 | PerlIO * |
06da4f11 | 1968 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b | 1969 | { |
adb71456 | 1970 | dTHX; |
9e353e3b | 1971 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f NIS |
1972 | int init = 0; |
1973 | PerlIO *f; | |
1974 | if (*mode == 'I') | |
1975 | { | |
1976 | init = 1; | |
1977 | mode++; | |
a77df51f | 1978 | } |
10cbe18a | 1979 | #if O_BINARY != O_TEXT |
a4d3c1d3 NIS |
1980 | /* do something about failing setmode()? --jhi */ |
1981 | PerlLIO_setmode(fd, O_BINARY); | |
10cbe18a | 1982 | #endif |
06da4f11 | 1983 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 NIS |
1984 | if (f) |
1985 | { | |
33af2bc7 | 1986 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode,Nullch,0),PerlIOBuf); |
f5b9d040 | 1987 | if (init && fd == 2) |
c7fc522f | 1988 | { |
f5b9d040 NIS |
1989 | /* Initial stderr is unbuffered */ |
1990 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
a4d3c1d3 | 1991 | } |
5e2ab84b | 1992 | #if 0 |
4659c93f | 1993 | PerlIO_debug("PerlIOBuf_fdopen %s f=%p fd=%d m=%s fl=%08"UVxf"\n", |
f5b9d040 | 1994 | self->name,f,fd,mode,PerlIOBase(f)->flags); |
5e2ab84b | 1995 | #endif |
6f9d8c32 | 1996 | } |
9e353e3b | 1997 | return f; |
760ac839 LW |
1998 | } |
1999 | ||
9e353e3b | 2000 | PerlIO * |
06da4f11 | 2001 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 | 2002 | { |
9e353e3b | 2003 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 | 2004 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b NIS |
2005 | if (f) |
2006 | { | |
33af2bc7 | 2007 | PerlIO_push(f,self,mode,Nullch,0); |
9e353e3b NIS |
2008 | } |
2009 | return f; | |
2010 | } | |
2011 | ||
2012 | int | |
c3d7c7c9 | 2013 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b | 2014 | { |
c3d7c7c9 NIS |
2015 | PerlIO *next = PerlIONext(f); |
2016 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); | |
2017 | if (code = 0) | |
33af2bc7 | 2018 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode,Nullch,0); |
c3d7c7c9 | 2019 | return code; |
9e353e3b NIS |
2020 | } |
2021 | ||
9e353e3b NIS |
2022 | /* This "flush" is akin to sfio's sync in that it handles files in either |
2023 | read or write state | |
2024 | */ | |
2025 | IV | |
2026 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 2027 | { |
9e353e3b NIS |
2028 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2029 | int code = 0; | |
2030 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2031 | { | |
2032 | /* write() the buffer */ | |
a5262162 | 2033 | STDCHAR *buf = b->buf; |
33af2bc7 | 2034 | STDCHAR *p = buf; |
9e353e3b | 2035 | int count; |
3789aae2 | 2036 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
2037 | while (p < b->ptr) |
2038 | { | |
3789aae2 | 2039 | count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b NIS |
2040 | if (count > 0) |
2041 | { | |
2042 | p += count; | |
2043 | } | |
3789aae2 | 2044 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b NIS |
2045 | { |
2046 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2047 | code = -1; | |
2048 | break; | |
2049 | } | |
2050 | } | |
33af2bc7 | 2051 | b->posn += (p - buf); |
9e353e3b NIS |
2052 | } |
2053 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 2054 | { |
33af2bc7 | 2055 | STDCHAR *buf = PerlIO_get_base(f); |
9e353e3b | 2056 | /* Note position change */ |
33af2bc7 | 2057 | b->posn += (b->ptr - buf); |
9e353e3b NIS |
2058 | if (b->ptr < b->end) |
2059 | { | |
2060 | /* We did not consume all of it */ | |
2061 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
2062 | { | |
2063 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2064 | } | |
2065 | } | |
6f9d8c32 | 2066 | } |
9e353e3b NIS |
2067 | b->ptr = b->end = b->buf; |
2068 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
88b61e10 | 2069 | /* FIXME: Is this right for read case ? */ |
9e353e3b NIS |
2070 | if (PerlIO_flush(PerlIONext(f)) != 0) |
2071 | code = -1; | |
2072 | return code; | |
6f9d8c32 NIS |
2073 | } |
2074 | ||
06da4f11 NIS |
2075 | IV |
2076 | PerlIOBuf_fill(PerlIO *f) | |
2077 | { | |
2078 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
88b61e10 | 2079 | PerlIO *n = PerlIONext(f); |
06da4f11 | 2080 | SSize_t avail; |
88b61e10 NIS |
2081 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
2082 | pre-read data in stdio buffer to be discarded | |
2083 | but this is too simplistic - as it skips _our_ hosekeeping | |
2084 | and breaks tell tests. | |
2085 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2086 | { | |
2087 | } | |
2088 | */ | |
06da4f11 NIS |
2089 | if (PerlIO_flush(f) != 0) |
2090 | return -1; | |
88b61e10 | 2091 | |
a5262162 NIS |
2092 | if (!b->buf) |
2093 | PerlIO_get_base(f); /* allocate via vtable */ | |
2094 | ||
2095 | b->ptr = b->end = b->buf; | |
88b61e10 NIS |
2096 | if (PerlIO_fast_gets(n)) |
2097 | { | |
2098 | /* Layer below is also buffered | |
2099 | * We do _NOT_ want to call its ->Read() because that will loop | |
2100 | * till it gets what we asked for which may hang on a pipe etc. | |
2101 | * Instead take anything it has to hand, or ask it to fill _once_. | |
2102 | */ | |
2103 | avail = PerlIO_get_cnt(n); | |
2104 | if (avail <= 0) | |
2105 | { | |
2106 | avail = PerlIO_fill(n); | |
2107 | if (avail == 0) | |
2108 | avail = PerlIO_get_cnt(n); | |
2109 | else | |
2110 | { | |
2111 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
2112 | avail = 0; | |
2113 | } | |
2114 | } | |
2115 | if (avail > 0) | |
2116 | { | |
2117 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
2118 | SSize_t cnt = avail; | |
2119 | if (avail > b->bufsiz) | |
2120 | avail = b->bufsiz; | |
2121 | Copy(ptr,b->buf,avail,STDCHAR); | |
2122 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); | |
2123 | } | |
2124 | } | |
2125 | else | |
2126 | { | |
2127 | avail = PerlIO_read(n,b->ptr,b->bufsiz); | |
2128 | } | |
06da4f11 NIS |
2129 | if (avail <= 0) |
2130 | { | |
2131 | if (avail == 0) | |
2132 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
2133 | else | |
2134 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2135 | return -1; | |
2136 | } | |
a5262162 | 2137 | b->end = b->buf+avail; |
06da4f11 NIS |
2138 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2139 | return 0; | |
2140 | } | |
2141 | ||
6f9d8c32 | 2142 | SSize_t |
9e353e3b | 2143 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 2144 | { |
99efab12 NIS |
2145 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2146 | STDCHAR *buf = (STDCHAR *) vbuf; | |
6f9d8c32 NIS |
2147 | if (f) |
2148 | { | |
9e353e3b | 2149 | if (!b->ptr) |
06da4f11 | 2150 | PerlIO_get_base(f); |
9e353e3b | 2151 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf | 2152 | return 0; |
6f9d8c32 NIS |
2153 | while (count > 0) |
2154 | { | |
99efab12 | 2155 | SSize_t avail = PerlIO_get_cnt(f); |
60382766 | 2156 | SSize_t take = (count < avail) ? count : avail; |
99efab12 | 2157 | if (take > 0) |
6f9d8c32 | 2158 | { |
99efab12 NIS |
2159 | STDCHAR *ptr = PerlIO_get_ptr(f); |
2160 | Copy(ptr,buf,take,STDCHAR); | |
2161 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); | |
2162 | count -= take; | |
2163 | buf += take; | |
6f9d8c32 | 2164 | } |
99efab12 | 2165 | if (count > 0 && avail <= 0) |
6f9d8c32 | 2166 | { |
06da4f11 NIS |
2167 | if (PerlIO_fill(f) != 0) |
2168 | break; | |
6f9d8c32 NIS |
2169 | } |
2170 | } | |
99efab12 | 2171 | return (buf - (STDCHAR *) vbuf); |
6f9d8c32 NIS |
2172 | } |
2173 | return 0; | |
2174 | } | |
2175 | ||
9e353e3b NIS |
2176 | SSize_t |
2177 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2178 | { |
9e353e3b NIS |
2179 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2180 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2181 | SSize_t unread = 0; | |
2182 | SSize_t avail; | |
9e353e3b NIS |
2183 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2184 | PerlIO_flush(f); | |
06da4f11 NIS |
2185 | if (!b->buf) |
2186 | PerlIO_get_base(f); | |
9e353e3b NIS |
2187 | if (b->buf) |
2188 | { | |
2189 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2190 | { | |
2191 | avail = (b->ptr - b->buf); | |
9e353e3b NIS |
2192 | } |
2193 | else | |
2194 | { | |
2195 | avail = b->bufsiz; | |
5e2ab84b NIS |
2196 | b->end = b->buf + avail; |
2197 | b->ptr = b->end; | |
2198 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2199 | b->posn -= b->bufsiz; | |
9e353e3b | 2200 | } |
5e2ab84b NIS |
2201 | if (avail > (SSize_t) count) |
2202 | avail = count; | |
9e353e3b NIS |
2203 | if (avail > 0) |
2204 | { | |
5e2ab84b | 2205 | b->ptr -= avail; |
9e353e3b NIS |
2206 | buf -= avail; |
2207 | if (buf != b->ptr) | |
2208 | { | |
88b61e10 | 2209 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2210 | } |
2211 | count -= avail; | |
2212 | unread += avail; | |
2213 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
2214 | } | |
2215 | } | |
2216 | return unread; | |
760ac839 LW |
2217 | } |
2218 | ||
9e353e3b NIS |
2219 | SSize_t |
2220 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2221 | { |
9e353e3b NIS |
2222 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2223 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
2224 | Size_t written = 0; | |
2225 | if (!b->buf) | |
06da4f11 | 2226 | PerlIO_get_base(f); |
9e353e3b NIS |
2227 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2228 | return 0; | |
2229 | while (count > 0) | |
2230 | { | |
2231 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
2232 | if ((SSize_t) count < avail) | |
2233 | avail = count; | |
2234 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2235 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2236 | { | |
2237 | while (avail > 0) | |
2238 | { | |
2239 | int ch = *buf++; | |
2240 | *(b->ptr)++ = ch; | |
2241 | count--; | |
2242 | avail--; | |
2243 | written++; | |
2244 | if (ch == '\n') | |
2245 | { | |
2246 | PerlIO_flush(f); | |
2247 | break; | |
2248 | } | |
2249 | } | |
2250 | } | |
2251 | else | |
2252 | { | |
2253 | if (avail) | |
2254 | { | |
88b61e10 | 2255 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2256 | count -= avail; |
2257 | buf += avail; | |
2258 | written += avail; | |
2259 | b->ptr += avail; | |
2260 | } | |
2261 | } | |
2262 | if (b->ptr >= (b->buf + b->bufsiz)) | |
2263 | PerlIO_flush(f); | |
2264 | } | |
f5b9d040 NIS |
2265 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2266 | PerlIO_flush(f); | |
9e353e3b NIS |
2267 | return written; |
2268 | } | |
2269 | ||
2270 | IV | |
2271 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
2272 | { | |
5e2ab84b NIS |
2273 | IV code; |
2274 | if ((code = PerlIO_flush(f)) == 0) | |
9e353e3b | 2275 | { |
5e2ab84b | 2276 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
9e353e3b NIS |
2277 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2278 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
2279 | if (code == 0) | |
2280 | { | |
2281 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2282 | } | |
2283 | } | |
2284 | return code; | |
2285 | } | |
2286 | ||
2287 | Off_t | |
2288 | PerlIOBuf_tell(PerlIO *f) | |
2289 | { | |
2290 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2291 | Off_t posn = b->posn; | |
2292 | if (b->buf) | |
2293 | posn += (b->ptr - b->buf); | |
2294 | return posn; | |
2295 | } | |
2296 | ||
2297 | IV | |
2298 | PerlIOBuf_close(PerlIO *f) | |
2299 | { | |
5f1a76d0 | 2300 | dTHX; |
9e353e3b NIS |
2301 | IV code = PerlIOBase_close(f); |
2302 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2303 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 2304 | { |
5f1a76d0 | 2305 | PerlMemShared_free(b->buf); |
6f9d8c32 | 2306 | } |
9e353e3b NIS |
2307 | b->buf = NULL; |
2308 | b->ptr = b->end = b->buf; | |
2309 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2310 | return code; | |
760ac839 LW |
2311 | } |
2312 | ||
760ac839 | 2313 | void |
9e353e3b | 2314 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 2315 | { |
6f9d8c32 NIS |
2316 | if (f) |
2317 | { | |
9e353e3b | 2318 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 2319 | } |
760ac839 LW |
2320 | } |
2321 | ||
9e353e3b NIS |
2322 | STDCHAR * |
2323 | PerlIOBuf_get_ptr(PerlIO *f) | |
2324 | { | |
2325 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2326 | if (!b->buf) | |
06da4f11 | 2327 | PerlIO_get_base(f); |
9e353e3b NIS |
2328 | return b->ptr; |
2329 | } | |
2330 | ||
05d1247b | 2331 | SSize_t |
9e353e3b NIS |
2332 | PerlIOBuf_get_cnt(PerlIO *f) |
2333 | { | |
2334 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2335 | if (!b->buf) | |
06da4f11 | 2336 | PerlIO_get_base(f); |
9e353e3b NIS |
2337 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2338 | return (b->end - b->ptr); | |
2339 | return 0; | |
2340 | } | |
2341 | ||
2342 | STDCHAR * | |
2343 | PerlIOBuf_get_base(PerlIO *f) | |
2344 | { | |
2345 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2346 | if (!b->buf) | |
06da4f11 | 2347 | { |
5f1a76d0 | 2348 | dTHX; |
06da4f11 NIS |
2349 | if (!b->bufsiz) |
2350 | b->bufsiz = 4096; | |
5f1a76d0 | 2351 | b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR)); |
06da4f11 NIS |
2352 | if (!b->buf) |
2353 | { | |
2354 | b->buf = (STDCHAR *)&b->oneword; | |
2355 | b->bufsiz = sizeof(b->oneword); | |
2356 | } | |
2357 | b->ptr = b->buf; | |
2358 | b->end = b->ptr; | |
2359 | } | |
9e353e3b NIS |
2360 | return b->buf; |
2361 | } | |
2362 | ||
2363 | Size_t | |
2364 | PerlIOBuf_bufsiz(PerlIO *f) | |
2365 | { | |
2366 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2367 | if (!b->buf) | |
06da4f11 | 2368 | PerlIO_get_base(f); |
9e353e3b NIS |
2369 | return (b->end - b->buf); |
2370 | } | |
2371 | ||
2372 | void | |
05d1247b | 2373 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
2374 | { |
2375 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2376 | if (!b->buf) | |
06da4f11 | 2377 | PerlIO_get_base(f); |
9e353e3b NIS |
2378 | b->ptr = ptr; |
2379 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 2380 | { |
9e353e3b NIS |
2381 | dTHX; |
2382 | assert(PerlIO_get_cnt(f) == cnt); | |
2383 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 2384 | } |
9e353e3b | 2385 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
2386 | } |
2387 | ||
9e353e3b NIS |
2388 | PerlIO_funcs PerlIO_perlio = { |
2389 | "perlio", | |
2390 | sizeof(PerlIOBuf), | |
f5b9d040 | 2391 | PERLIO_K_BUFFERED, |
9e353e3b NIS |
2392 | PerlIOBase_fileno, |
2393 | PerlIOBuf_fdopen, | |
2394 | PerlIOBuf_open, | |
c3d7c7c9 | 2395 | PerlIOBuf_reopen, |
5e2ab84b | 2396 | PerlIOBuf_pushed, |
06da4f11 | 2397 | PerlIOBase_noop_ok, |
9e353e3b NIS |
2398 | PerlIOBuf_read, |
2399 | PerlIOBuf_unread, | |
2400 | PerlIOBuf_write, | |
2401 | PerlIOBuf_seek, | |
2402 | PerlIOBuf_tell, | |
2403 | PerlIOBuf_close, | |
2404 | PerlIOBuf_flush, | |
06da4f11 | 2405 | PerlIOBuf_fill, |
9e353e3b NIS |
2406 | PerlIOBase_eof, |
2407 | PerlIOBase_error, | |
2408 | PerlIOBase_clearerr, | |
2409 | PerlIOBuf_setlinebuf, | |
2410 | PerlIOBuf_get_base, | |
2411 | PerlIOBuf_bufsiz, | |
2412 | PerlIOBuf_get_ptr, | |
2413 | PerlIOBuf_get_cnt, | |
2414 | PerlIOBuf_set_ptrcnt, | |
2415 | }; | |
2416 | ||
66ecd56b | 2417 | /*--------------------------------------------------------------------------------------*/ |
5e2ab84b NIS |
2418 | /* Temp layer to hold unread chars when cannot do it any other way */ |
2419 | ||
2420 | IV | |
2421 | PerlIOPending_fill(PerlIO *f) | |
2422 | { | |
2423 | /* Should never happen */ | |
2424 | PerlIO_flush(f); | |
2425 | return 0; | |
2426 | } | |
2427 | ||
2428 | IV | |
2429 | PerlIOPending_close(PerlIO *f) | |
2430 | { | |
2431 | /* A tad tricky - flush pops us, then we close new top */ | |
2432 | PerlIO_flush(f); | |
2433 | return PerlIO_close(f); | |
2434 | } | |
2435 | ||
2436 | IV | |
2437 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) | |
2438 | { | |
2439 | /* A tad tricky - flush pops us, then we seek new top */ | |
2440 | PerlIO_flush(f); | |
2441 | return PerlIO_seek(f,offset,whence); | |
2442 | } | |
2443 | ||
2444 | ||
2445 | IV | |
2446 | PerlIOPending_flush(PerlIO *f) | |
2447 | { | |
2448 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2449 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
2450 | { | |
5f1a76d0 NIS |
2451 | dTHX; |
2452 | PerlMemShared_free(b->buf); | |
5e2ab84b NIS |
2453 | b->buf = NULL; |
2454 | } | |
2455 | PerlIO_pop(f); | |
2456 | return 0; | |
2457 | } | |
2458 | ||
2459 | void | |
2460 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
2461 | { | |
2462 | if (cnt <= 0) | |
2463 | { | |
2464 | PerlIO_flush(f); | |
2465 | } | |
2466 | else | |
2467 | { | |
2468 | PerlIOBuf_set_ptrcnt(f,ptr,cnt); | |
2469 | } | |
2470 | } | |
2471 | ||
2472 | IV | |
33af2bc7 | 2473 | PerlIOPending_pushed(PerlIO *f,const char *mode,const char *arg,STRLEN len) |
5e2ab84b | 2474 | { |
72e44f29 | 2475 | IV code = PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b NIS |
2476 | PerlIOl *l = PerlIOBase(f); |
2477 | /* Our PerlIO_fast_gets must match what we are pushed on, | |
2478 | or sv_gets() etc. get muddled when it changes mid-string | |
2479 | when we auto-pop. | |
2480 | */ | |
72e44f29 NIS |
2481 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) | |
2482 | (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8)); | |
5e2ab84b NIS |
2483 | return code; |
2484 | } | |
2485 | ||
2486 | SSize_t | |
2487 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) | |
2488 | { | |
2489 | SSize_t avail = PerlIO_get_cnt(f); | |
2490 | SSize_t got = 0; | |
2491 | if (count < avail) | |
2492 | avail = count; | |
2493 | if (avail > 0) | |
2494 | got = PerlIOBuf_read(f,vbuf,avail); | |
2495 | if (got < count) | |
2496 | got += PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got); | |
2497 | return got; | |
2498 | } | |
2499 | ||
2500 | ||
2501 | PerlIO_funcs PerlIO_pending = { | |
2502 | "pending", | |
2503 | sizeof(PerlIOBuf), | |
2504 | PERLIO_K_BUFFERED, | |
2505 | PerlIOBase_fileno, | |
2506 | NULL, | |
2507 | NULL, | |
2508 | NULL, | |
2509 | PerlIOPending_pushed, | |
2510 | PerlIOBase_noop_ok, | |
2511 | PerlIOPending_read, | |
2512 | PerlIOBuf_unread, | |
2513 | PerlIOBuf_write, | |
2514 | PerlIOPending_seek, | |
2515 | PerlIOBuf_tell, | |
2516 | PerlIOPending_close, | |
2517 | PerlIOPending_flush, | |
2518 | PerlIOPending_fill, | |
2519 | PerlIOBase_eof, | |
2520 | PerlIOBase_error, | |
2521 | PerlIOBase_clearerr, | |
2522 | PerlIOBuf_setlinebuf, | |
2523 | PerlIOBuf_get_base, | |
2524 | PerlIOBuf_bufsiz, | |
2525 | PerlIOBuf_get_ptr, | |
2526 | PerlIOBuf_get_cnt, | |
2527 | PerlIOPending_set_ptrcnt, | |
2528 | }; | |
2529 | ||
2530 | ||
2531 | ||
2532 | /*--------------------------------------------------------------------------------------*/ | |
99efab12 NIS |
2533 | /* crlf - translation |
2534 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries | |
60382766 | 2535 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 | 2536 | On write translate "\n" to CR,LF |
66ecd56b NIS |
2537 | */ |
2538 | ||
99efab12 NIS |
2539 | typedef struct |
2540 | { | |
2541 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
60382766 | 2542 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 NIS |
2543 | } PerlIOCrlf; |
2544 | ||
f5b9d040 | 2545 | IV |
33af2bc7 | 2546 | PerlIOCrlf_pushed(PerlIO *f, const char *mode,const char *arg,STRLEN len) |
f5b9d040 NIS |
2547 | { |
2548 | IV code; | |
2549 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
33af2bc7 | 2550 | code = PerlIOBuf_pushed(f,mode,arg,len); |
5e2ab84b | 2551 | #if 0 |
4659c93f | 2552 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n", |
f5b9d040 | 2553 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
a4d3c1d3 | 2554 | PerlIOBase(f)->flags); |
5e2ab84b | 2555 | #endif |
f5b9d040 NIS |
2556 | return code; |
2557 | } | |
2558 | ||
2559 | ||
99efab12 NIS |
2560 | SSize_t |
2561 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2562 | { | |
60382766 | 2563 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 NIS |
2564 | if (c->nl) |
2565 | { | |
2566 | *(c->nl) = 0xd; | |
2567 | c->nl = NULL; | |
2568 | } | |
f5b9d040 NIS |
2569 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2570 | return PerlIOBuf_unread(f,vbuf,count); | |
2571 | else | |
99efab12 | 2572 | { |
a4d3c1d3 | 2573 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
f5b9d040 NIS |
2574 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2575 | SSize_t unread = 0; | |
2576 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2577 | PerlIO_flush(f); | |
2578 | if (!b->buf) | |
2579 | PerlIO_get_base(f); | |
2580 | if (b->buf) | |
99efab12 | 2581 | { |
f5b9d040 | 2582 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 | 2583 | { |
f5b9d040 NIS |
2584 | b->end = b->ptr = b->buf + b->bufsiz; |
2585 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
5e2ab84b | 2586 | b->posn -= b->bufsiz; |
f5b9d040 NIS |
2587 | } |
2588 | while (count > 0 && b->ptr > b->buf) | |
2589 | { | |
2590 | int ch = *--buf; | |
2591 | if (ch == '\n') | |
99efab12 | 2592 | { |
f5b9d040 NIS |
2593 | if (b->ptr - 2 >= b->buf) |
2594 | { | |
2595 | *--(b->ptr) = 0xa; | |
2596 | *--(b->ptr) = 0xd; | |
2597 | unread++; | |
2598 | count--; | |
2599 | } | |
2600 | else | |
2601 | { | |
2602 | buf++; | |
2603 | break; | |
2604 | } | |
99efab12 NIS |
2605 | } |
2606 | else | |
2607 | { | |
f5b9d040 NIS |
2608 | *--(b->ptr) = ch; |
2609 | unread++; | |
2610 | count--; | |
99efab12 NIS |
2611 | } |
2612 | } | |
99efab12 | 2613 | } |
f5b9d040 | 2614 | return unread; |
99efab12 | 2615 | } |
99efab12 NIS |
2616 | } |
2617 | ||
2618 | SSize_t | |
2619 | PerlIOCrlf_get_cnt(PerlIO *f) | |
2620 | { | |
2621 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2622 | if (!b->buf) | |
2623 | PerlIO_get_base(f); | |
2624 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2625 | { | |
2626 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 2627 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 NIS |
2628 | { |
2629 | STDCHAR *nl = b->ptr; | |
60382766 | 2630 | scan: |
99efab12 NIS |
2631 | while (nl < b->end && *nl != 0xd) |
2632 | nl++; | |
2633 | if (nl < b->end && *nl == 0xd) | |
2634 | { | |
60382766 | 2635 | test: |
99efab12 NIS |
2636 | if (nl+1 < b->end) |
2637 | { | |
2638 | if (nl[1] == 0xa) | |
2639 | { | |
2640 | *nl = '\n'; | |
60382766 | 2641 | c->nl = nl; |
99efab12 | 2642 | } |
60382766 | 2643 | else |
99efab12 NIS |
2644 | { |
2645 | /* Not CR,LF but just CR */ | |
2646 | nl++; | |
60382766 | 2647 | goto scan; |
99efab12 NIS |
2648 | } |
2649 | } | |
2650 | else | |
2651 | { | |
60382766 | 2652 | /* Blast - found CR as last char in buffer */ |
99efab12 NIS |
2653 | if (b->ptr < nl) |
2654 | { | |
2655 | /* They may not care, defer work as long as possible */ | |
60382766 | 2656 | return (nl - b->ptr); |
99efab12 NIS |
2657 | } |
2658 | else | |
2659 | { | |
2660 | int code; | |
2661 | dTHX; | |
99efab12 NIS |
2662 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
2663 | b->buf++; /* Leave space an front of buffer */ | |
2664 | b->bufsiz--; /* Buffer is thus smaller */ | |
2665 | code = PerlIO_fill(f); /* Fetch some more */ | |
2666 | b->bufsiz++; /* Restore size for next time */ | |
2667 | b->buf--; /* Point at space */ | |
2668 | b->ptr = nl = b->buf; /* Which is what we hand off */ | |
2669 | b->posn--; /* Buffer starts here */ | |
2670 | *nl = 0xd; /* Fill in the CR */ | |
60382766 | 2671 | if (code == 0) |
99efab12 NIS |
2672 | goto test; /* fill() call worked */ |
2673 | /* CR at EOF - just fall through */ | |
2674 | } | |
2675 | } | |
60382766 NIS |
2676 | } |
2677 | } | |
99efab12 NIS |
2678 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
2679 | } | |
2680 | return 0; | |
2681 | } | |
2682 | ||
2683 | void | |
2684 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
2685 | { | |
2686 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2687 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 2688 | IV flags = PerlIOBase(f)->flags; |
99efab12 NIS |
2689 | if (!b->buf) |
2690 | PerlIO_get_base(f); | |
2691 | if (!ptr) | |
60382766 | 2692 | { |
63dbdb06 NIS |
2693 | if (c->nl) |
2694 | ptr = c->nl+1; | |
2695 | else | |
2696 | { | |
2697 | ptr = b->end; | |
f5b9d040 | 2698 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 NIS |
2699 | ptr--; |
2700 | } | |
2701 | ptr -= cnt; | |
60382766 NIS |
2702 | } |
2703 | else | |
2704 | { | |
63dbdb06 NIS |
2705 | /* Test code - delete when it works ... */ |
2706 | STDCHAR *chk; | |
2707 | if (c->nl) | |
2708 | chk = c->nl+1; | |
2709 | else | |
2710 | { | |
2711 | chk = b->end; | |
f5b9d040 | 2712 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 NIS |
2713 | chk--; |
2714 | } | |
2715 | chk -= cnt; | |
a4d3c1d3 | 2716 | |
63dbdb06 NIS |
2717 | if (ptr != chk) |
2718 | { | |
2719 | dTHX; | |
4659c93f | 2720 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d", |
a4d3c1d3 | 2721 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 | 2722 | } |
60382766 | 2723 | } |
99efab12 NIS |
2724 | if (c->nl) |
2725 | { | |
2726 | if (ptr > c->nl) | |
2727 | { | |
2728 | /* They have taken what we lied about */ | |
2729 | *(c->nl) = 0xd; | |
2730 | c->nl = NULL; | |
2731 | ptr++; | |
60382766 | 2732 | } |
99efab12 NIS |
2733 | } |
2734 | b->ptr = ptr; | |
2735 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2736 | } | |
2737 | ||
2738 | SSize_t | |
2739 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) | |
2740 | { | |
f5b9d040 NIS |
2741 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2742 | return PerlIOBuf_write(f,vbuf,count); | |
2743 | else | |
99efab12 | 2744 | { |
a4d3c1d3 | 2745 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
f5b9d040 NIS |
2746 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
2747 | const STDCHAR *ebuf = buf+count; | |
2748 | if (!b->buf) | |
2749 | PerlIO_get_base(f); | |
2750 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
2751 | return 0; | |
2752 | while (buf < ebuf) | |
99efab12 | 2753 | { |
f5b9d040 NIS |
2754 | STDCHAR *eptr = b->buf+b->bufsiz; |
2755 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2756 | while (buf < ebuf && b->ptr < eptr) | |
99efab12 | 2757 | { |
f5b9d040 | 2758 | if (*buf == '\n') |
60382766 | 2759 | { |
f5b9d040 | 2760 | if ((b->ptr + 2) > eptr) |
60382766 | 2761 | { |
f5b9d040 | 2762 | /* Not room for both */ |
60382766 NIS |
2763 | PerlIO_flush(f); |
2764 | break; | |
2765 | } | |
f5b9d040 NIS |
2766 | else |
2767 | { | |
2768 | *(b->ptr)++ = 0xd; /* CR */ | |
2769 | *(b->ptr)++ = 0xa; /* LF */ | |
2770 | buf++; | |
2771 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2772 | { | |
2773 | PerlIO_flush(f); | |
2774 | break; | |
2775 | } | |
2776 | } | |
2777 | } | |
2778 | else | |
2779 | { | |
2780 | int ch = *buf++; | |
2781 | *(b->ptr)++ = ch; | |
2782 | } | |
2783 | if (b->ptr >= eptr) | |
2784 | { | |
2785 | PerlIO_flush(f); | |
2786 | break; | |
99efab12 | 2787 | } |
99efab12 NIS |
2788 | } |
2789 | } | |
f5b9d040 NIS |
2790 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2791 | PerlIO_flush(f); | |
2792 | return (buf - (STDCHAR *) vbuf); | |
99efab12 | 2793 | } |
99efab12 NIS |
2794 | } |
2795 | ||
2796 | IV | |
2797 | PerlIOCrlf_flush(PerlIO *f) | |
2798 | { | |
2799 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
2800 | if (c->nl) | |
2801 | { | |
99efab12 | 2802 | *(c->nl) = 0xd; |
60382766 | 2803 | c->nl = NULL; |
99efab12 NIS |
2804 | } |
2805 | return PerlIOBuf_flush(f); | |
2806 | } | |
2807 | ||
66ecd56b NIS |
2808 | PerlIO_funcs PerlIO_crlf = { |
2809 | "crlf", | |
99efab12 | 2810 | sizeof(PerlIOCrlf), |
f5b9d040 | 2811 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
66ecd56b NIS |
2812 | PerlIOBase_fileno, |
2813 | PerlIOBuf_fdopen, | |
2814 | PerlIOBuf_open, | |
2815 | PerlIOBuf_reopen, | |
f5b9d040 | 2816 | PerlIOCrlf_pushed, |
99efab12 NIS |
2817 | PerlIOBase_noop_ok, /* popped */ |
2818 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ | |
2819 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ | |
2820 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
66ecd56b NIS |
2821 | PerlIOBuf_seek, |
2822 | PerlIOBuf_tell, | |
2823 | PerlIOBuf_close, | |
99efab12 | 2824 | PerlIOCrlf_flush, |
66ecd56b NIS |
2825 | PerlIOBuf_fill, |
2826 | PerlIOBase_eof, | |
2827 | PerlIOBase_error, | |
2828 | PerlIOBase_clearerr, | |
2829 | PerlIOBuf_setlinebuf, | |
2830 | PerlIOBuf_get_base, | |
2831 | PerlIOBuf_bufsiz, | |
2832 | PerlIOBuf_get_ptr, | |
99efab12 NIS |
2833 | PerlIOCrlf_get_cnt, |
2834 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
2835 | }; |
2836 | ||
06da4f11 NIS |
2837 | #ifdef HAS_MMAP |
2838 | /*--------------------------------------------------------------------------------------*/ | |
2839 | /* mmap as "buffer" layer */ | |
2840 | ||
2841 | typedef struct | |
2842 | { | |
2843 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 2844 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
2845 | Size_t len; /* mapped length */ |
2846 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
2847 | } PerlIOMmap; | |
2848 | ||
c3d7c7c9 NIS |
2849 | static size_t page_size = 0; |
2850 | ||
06da4f11 NIS |
2851 | IV |
2852 | PerlIOMmap_map(PerlIO *f) | |
2853 | { | |
68d873c6 | 2854 | dTHX; |
06da4f11 NIS |
2855 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2856 | PerlIOBuf *b = &m->base; | |
2857 | IV flags = PerlIOBase(f)->flags; | |
2858 | IV code = 0; | |
2859 | if (m->len) | |
2860 | abort(); | |
2861 | if (flags & PERLIO_F_CANREAD) | |
2862 | { | |
2863 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2864 | int fd = PerlIO_fileno(f); | |
2865 | struct stat st; | |
2866 | code = fstat(fd,&st); | |
2867 | if (code == 0 && S_ISREG(st.st_mode)) | |
2868 | { | |
2869 | SSize_t len = st.st_size - b->posn; | |
2870 | if (len > 0) | |
2871 | { | |
c3d7c7c9 | 2872 | Off_t posn; |
68d873c6 JH |
2873 | if (!page_size) { |
2874 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
2875 | { | |
2876 | SETERRNO(0,SS$_NORMAL); | |
2877 | # ifdef _SC_PAGESIZE | |
2878 | page_size = sysconf(_SC_PAGESIZE); | |
2879 | # else | |
2880 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 2881 | # endif |
68d873c6 JH |
2882 | if ((long)page_size < 0) { |
2883 | if (errno) { | |
2884 | SV *error = ERRSV; | |
2885 | char *msg; | |
2886 | STRLEN n_a; | |
2887 | (void)SvUPGRADE(error, SVt_PV); | |
2888 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 2889 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
2890 | } |
2891 | else | |
14aaf8e8 | 2892 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
2893 | } |
2894 | } | |
2895 | #else | |
2896 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 2897 | page_size = getpagesize(); |
68d873c6 JH |
2898 | # else |
2899 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
2900 | page_size = PAGESIZE; /* compiletime, bad */ | |
2901 | # endif | |
2902 | # endif | |
2903 | #endif | |
2904 | if ((IV)page_size <= 0) | |
14aaf8e8 | 2905 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 2906 | } |
c3d7c7c9 NIS |
2907 | if (b->posn < 0) |
2908 | { | |
2909 | /* This is a hack - should never happen - open should have set it ! */ | |
2910 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2911 | } | |
2912 | posn = (b->posn / page_size) * page_size; | |
2913 | len = st.st_size - posn; | |
a5262162 | 2914 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); |
c3d7c7c9 | 2915 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 | 2916 | { |
a5262162 | 2917 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 | 2918 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 2919 | #endif |
a5262162 NIS |
2920 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
2921 | madvise(m->mptr, len, MADV_WILLNEED); | |
2922 | #endif | |
c3d7c7c9 NIS |
2923 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
2924 | b->end = ((STDCHAR *)m->mptr) + len; | |
2925 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
2926 | b->ptr = b->buf; | |
2927 | m->len = len; | |
06da4f11 NIS |
2928 | } |
2929 | else | |
2930 | { | |
2931 | b->buf = NULL; | |
2932 | } | |
2933 | } | |
2934 | else | |
2935 | { | |
2936 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
2937 | b->buf = NULL; | |
2938 | b->ptr = b->end = b->ptr; | |
2939 | code = -1; | |
2940 | } | |
2941 | } | |
2942 | } | |
2943 | return code; | |
2944 | } | |
2945 | ||
2946 | IV | |
2947 | PerlIOMmap_unmap(PerlIO *f) | |
2948 | { | |
2949 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2950 | PerlIOBuf *b = &m->base; | |
2951 | IV code = 0; | |
2952 | if (m->len) | |
2953 | { | |
2954 | if (b->buf) | |
2955 | { | |
c3d7c7c9 NIS |
2956 | code = munmap(m->mptr, m->len); |
2957 | b->buf = NULL; | |
2958 | m->len = 0; | |
2959 | m->mptr = NULL; | |
06da4f11 NIS |
2960 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
2961 | code = -1; | |
06da4f11 NIS |
2962 | } |
2963 | b->ptr = b->end = b->buf; | |
2964 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2965 | } | |
2966 | return code; | |
2967 | } | |
2968 | ||
2969 | STDCHAR * | |
2970 | PerlIOMmap_get_base(PerlIO *f) | |
2971 | { | |
2972 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2973 | PerlIOBuf *b = &m->base; | |
2974 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2975 | { | |
2976 | /* Already have a readbuffer in progress */ | |
2977 | return b->buf; | |
2978 | } | |
2979 | if (b->buf) | |
2980 | { | |
2981 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
2982 | m->bbuf = b->buf; /* save it in case we need it again */ | |
2983 | b->buf = NULL; /* Clear to trigger below */ | |
2984 | } | |
2985 | if (!b->buf) | |
2986 | { | |
2987 | PerlIOMmap_map(f); /* Try and map it */ | |
2988 | if (!b->buf) | |
2989 | { | |
2990 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
2991 | b->buf = m->bbuf; | |
2992 | } | |
2993 | } | |
2994 | b->ptr = b->end = b->buf; | |
2995 | if (b->buf) | |
2996 | return b->buf; | |
2997 | return PerlIOBuf_get_base(f); | |
2998 | } | |
2999 | ||
3000 | SSize_t | |
3001 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3002 | { | |
3003 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3004 | PerlIOBuf *b = &m->base; | |
3005 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3006 | PerlIO_flush(f); | |
3007 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
3008 | { | |
3009 | b->ptr -= count; | |
3010 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
3011 | return count; | |
3012 | } | |
3013 | if (m->len) | |
3014 | { | |
4a4a6116 | 3015 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 3016 | PerlIO_flush(f); |
c3d7c7c9 NIS |
3017 | /* If flush took the "buffer" see if we have one from before */ |
3018 | if (!b->buf && m->bbuf) | |
3019 | b->buf = m->bbuf; | |
3020 | if (!b->buf) | |
3021 | { | |
3022 | PerlIOBuf_get_base(f); | |
3023 | m->bbuf = b->buf; | |
3024 | } | |
06da4f11 | 3025 | } |
5e2ab84b | 3026 | return PerlIOBuf_unread(f,vbuf,count); |
06da4f11 NIS |
3027 | } |
3028 | ||
3029 | SSize_t | |
3030 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
3031 | { | |
3032 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3033 | PerlIOBuf *b = &m->base; | |
3034 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
3035 | { | |
3036 | /* No, or wrong sort of, buffer */ | |
3037 | if (m->len) | |
3038 | { | |
3039 | if (PerlIOMmap_unmap(f) != 0) | |
3040 | return 0; | |
3041 | } | |
3042 | /* If unmap took the "buffer" see if we have one from before */ | |
3043 | if (!b->buf && m->bbuf) | |
3044 | b->buf = m->bbuf; | |
3045 | if (!b->buf) | |
3046 | { | |
3047 | PerlIOBuf_get_base(f); | |
3048 | m->bbuf = b->buf; | |
3049 | } | |
3050 | } | |
3051 | return PerlIOBuf_write(f,vbuf,count); | |
3052 | } | |
3053 | ||
3054 | IV | |
3055 | PerlIOMmap_flush(PerlIO *f) | |
3056 | { | |
3057 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3058 | PerlIOBuf *b = &m->base; | |
3059 | IV code = PerlIOBuf_flush(f); | |
3060 | /* Now we are "synced" at PerlIOBuf level */ | |
3061 | if (b->buf) | |
3062 | { | |
3063 | if (m->len) | |
3064 | { | |
3065 | /* Unmap the buffer */ | |
3066 | if (PerlIOMmap_unmap(f) != 0) | |
3067 | code = -1; | |
3068 | } | |
3069 | else | |
3070 | { | |
3071 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
3072 | * remember it in case we need one later | |
3073 | */ | |
3074 | m->bbuf = b->buf; | |
3075 | } | |
3076 | } | |
06da4f11 NIS |
3077 | return code; |
3078 | } | |
3079 | ||
3080 | IV | |
3081 | PerlIOMmap_fill(PerlIO *f) | |
3082 | { | |
3083 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
3084 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
3085 | if (code == 0 && !b->buf) |
3086 | { | |
3087 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
3088 | } |
3089 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
3090 | { | |
3091 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
3092 | } |
3093 | return code; | |
3094 | } | |
3095 | ||
3096 | IV | |
3097 | PerlIOMmap_close(PerlIO *f) | |
3098 | { | |
3099 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
3100 | PerlIOBuf *b = &m->base; | |
3101 | IV code = PerlIO_flush(f); | |
3102 | if (m->bbuf) | |
3103 | { | |
3104 | b->buf = m->bbuf; | |
3105 | m->bbuf = NULL; | |
3106 | b->ptr = b->end = b->buf; | |
3107 | } | |
3108 | if (PerlIOBuf_close(f) != 0) | |
3109 | code = -1; | |
06da4f11 NIS |
3110 | return code; |
3111 | } | |
3112 | ||
3113 | ||
3114 | PerlIO_funcs PerlIO_mmap = { | |
3115 | "mmap", | |
3116 | sizeof(PerlIOMmap), | |
f5b9d040 | 3117 | PERLIO_K_BUFFERED, |
06da4f11 NIS |
3118 | PerlIOBase_fileno, |
3119 | PerlIOBuf_fdopen, | |
3120 | PerlIOBuf_open, | |
c3d7c7c9 | 3121 | PerlIOBuf_reopen, |
5e2ab84b | 3122 | PerlIOBuf_pushed, |
06da4f11 NIS |
3123 | PerlIOBase_noop_ok, |
3124 | PerlIOBuf_read, | |
3125 | PerlIOMmap_unread, | |
3126 | PerlIOMmap_write, | |
3127 | PerlIOBuf_seek, | |
3128 | PerlIOBuf_tell, | |
3129 | PerlIOBuf_close, | |
3130 | PerlIOMmap_flush, | |
3131 | PerlIOMmap_fill, | |
3132 | PerlIOBase_eof, | |
3133 | PerlIOBase_error, | |
3134 | PerlIOBase_clearerr, | |
3135 | PerlIOBuf_setlinebuf, | |
3136 | PerlIOMmap_get_base, | |
3137 | PerlIOBuf_bufsiz, | |
3138 | PerlIOBuf_get_ptr, | |
3139 | PerlIOBuf_get_cnt, | |
3140 | PerlIOBuf_set_ptrcnt, | |
3141 | }; | |
3142 | ||
3143 | #endif /* HAS_MMAP */ | |
3144 | ||
9e353e3b NIS |
3145 | void |
3146 | PerlIO_init(void) | |
760ac839 | 3147 | { |
9e353e3b | 3148 | if (!_perlio) |
6f9d8c32 | 3149 | { |
be696b0a | 3150 | #ifndef WIN32 |
9e353e3b | 3151 | atexit(&PerlIO_cleanup); |
be696b0a | 3152 | #endif |
6f9d8c32 | 3153 | } |
760ac839 LW |
3154 | } |
3155 | ||
dfebf958 NIS |
3156 | |
3157 | ||
9e353e3b NIS |
3158 | #undef PerlIO_stdin |
3159 | PerlIO * | |
3160 | PerlIO_stdin(void) | |
3161 | { | |
3162 | if (!_perlio) | |
f3862f8b | 3163 | PerlIO_stdstreams(); |
05d1247b | 3164 | return &_perlio[1]; |
9e353e3b NIS |
3165 | } |
3166 | ||
3167 | #undef PerlIO_stdout | |
3168 | PerlIO * | |
3169 | PerlIO_stdout(void) | |
3170 | { | |
3171 | if (!_perlio) | |
f3862f8b | 3172 | PerlIO_stdstreams(); |
05d1247b | 3173 | return &_perlio[2]; |
9e353e3b NIS |
3174 | } |
3175 | ||
3176 | #undef PerlIO_stderr | |
3177 | PerlIO * | |
3178 | PerlIO_stderr(void) | |
3179 | { | |
3180 | if (!_perlio) | |
f3862f8b | 3181 | PerlIO_stdstreams(); |
05d1247b | 3182 | return &_perlio[3]; |
9e353e3b NIS |
3183 | } |
3184 | ||
3185 | /*--------------------------------------------------------------------------------------*/ | |
3186 | ||
3187 | #undef PerlIO_getname | |
3188 | char * | |
3189 | PerlIO_getname(PerlIO *f, char *buf) | |
3190 | { | |
3191 | dTHX; | |
3192 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
3193 | return NULL; | |
3194 | } | |
3195 | ||
3196 | ||
3197 | /*--------------------------------------------------------------------------------------*/ | |
3198 | /* Functions which can be called on any kind of PerlIO implemented | |
3199 | in terms of above | |
3200 | */ | |
3201 | ||
3202 | #undef PerlIO_getc | |
6f9d8c32 | 3203 | int |
9e353e3b | 3204 | PerlIO_getc(PerlIO *f) |
760ac839 | 3205 | { |
313ca112 NIS |
3206 | STDCHAR buf[1]; |
3207 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 3208 | if (count == 1) |
313ca112 NIS |
3209 | { |
3210 | return (unsigned char) buf[0]; | |
3211 | } | |
3212 | return EOF; | |
3213 | } | |
3214 | ||
3215 | #undef PerlIO_ungetc | |
3216 | int | |
3217 | PerlIO_ungetc(PerlIO *f, int ch) | |
3218 | { | |
3219 | if (ch != EOF) | |
3220 | { | |
3221 | STDCHAR buf = ch; | |
3222 | if (PerlIO_unread(f,&buf,1) == 1) | |
3223 | return ch; | |
3224 | } | |
3225 | return EOF; | |
760ac839 LW |
3226 | } |
3227 | ||
9e353e3b NIS |
3228 | #undef PerlIO_putc |
3229 | int | |
3230 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 3231 | { |
9e353e3b NIS |
3232 | STDCHAR buf = ch; |
3233 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
3234 | } |
3235 | ||
9e353e3b | 3236 | #undef PerlIO_puts |
760ac839 | 3237 | int |
9e353e3b | 3238 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 3239 | { |
9e353e3b NIS |
3240 | STRLEN len = strlen(s); |
3241 | return PerlIO_write(f,s,len); | |
760ac839 LW |
3242 | } |
3243 | ||
3244 | #undef PerlIO_rewind | |
3245 | void | |
c78749f2 | 3246 | PerlIO_rewind(PerlIO *f) |
760ac839 | 3247 | { |
6f9d8c32 | 3248 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 3249 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
3250 | } |
3251 | ||
3252 | #undef PerlIO_vprintf | |
3253 | int | |
3254 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
3255 | { | |
3256 | dTHX; | |
bb9950b7 | 3257 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
3258 | char *s; |
3259 | STRLEN len; | |
2cc61e15 DD |
3260 | #ifdef NEED_VA_COPY |
3261 | va_list apc; | |
3262 | Perl_va_copy(ap, apc); | |
3263 | sv_vcatpvf(sv, fmt, &apc); | |
3264 | #else | |
6f9d8c32 | 3265 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 3266 | #endif |
6f9d8c32 | 3267 | s = SvPV(sv,len); |
bb9950b7 | 3268 | return PerlIO_write(f,s,len); |
760ac839 LW |
3269 | } |
3270 | ||
3271 | #undef PerlIO_printf | |
6f9d8c32 | 3272 | int |
760ac839 | 3273 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
3274 | { |
3275 | va_list ap; | |
3276 | int result; | |
760ac839 | 3277 | va_start(ap,fmt); |
6f9d8c32 | 3278 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
3279 | va_end(ap); |
3280 | return result; | |
3281 | } | |
3282 | ||
3283 | #undef PerlIO_stdoutf | |
6f9d8c32 | 3284 | int |
760ac839 | 3285 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
3286 | { |
3287 | va_list ap; | |
3288 | int result; | |
760ac839 | 3289 | va_start(ap,fmt); |
760ac839 LW |
3290 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
3291 | va_end(ap); | |
3292 | return result; | |
3293 | } | |
3294 | ||
3295 | #undef PerlIO_tmpfile | |
3296 | PerlIO * | |
c78749f2 | 3297 | PerlIO_tmpfile(void) |
760ac839 | 3298 | { |
b1ef6e3b | 3299 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 | 3300 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
adb71456 | 3301 | dTHX; |
83b075c3 | 3302 | PerlIO *f = NULL; |
eaf8b698 | 3303 | FILE *stdio = PerlSIO_tmpfile(); |
83b075c3 NIS |
3304 | if (stdio) |
3305 | { | |
33af2bc7 | 3306 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"w+",Nullch,0),PerlIOStdio); |
83b075c3 NIS |
3307 | s->stdio = stdio; |
3308 | } | |
3309 | return f; | |
3310 | #else | |
3311 | dTHX; | |
6f9d8c32 NIS |
3312 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
3313 | int fd = mkstemp(SvPVX(sv)); | |
3314 | PerlIO *f = NULL; | |
3315 | if (fd >= 0) | |
3316 | { | |
b1ef6e3b | 3317 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
3318 | if (f) |
3319 | { | |
9e353e3b | 3320 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 3321 | } |
00b02797 | 3322 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
3323 | SvREFCNT_dec(sv); |
3324 | } | |
3325 | return f; | |
83b075c3 | 3326 | #endif |
760ac839 LW |
3327 | } |
3328 | ||
6f9d8c32 NIS |
3329 | #undef HAS_FSETPOS |
3330 | #undef HAS_FGETPOS | |
3331 | ||
760ac839 LW |
3332 | #endif /* USE_SFIO */ |
3333 | #endif /* PERLIO_IS_STDIO */ | |
3334 | ||
9e353e3b NIS |
3335 | /*======================================================================================*/ |
3336 | /* Now some functions in terms of above which may be needed even if | |
3337 | we are not in true PerlIO mode | |
3338 | */ | |
3339 | ||
760ac839 LW |
3340 | #ifndef HAS_FSETPOS |
3341 | #undef PerlIO_setpos | |
3342 | int | |
766a733e | 3343 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 3344 | { |
766a733e NIS |
3345 | dTHX; |
3346 | if (SvOK(pos)) | |
3347 | { | |
3348 | STRLEN len; | |
3349 | Off_t *posn = (Off_t *) SvPV(pos,len); | |
3350 | if (f && len == sizeof(Off_t)) | |
3351 | return PerlIO_seek(f,*posn,SEEK_SET); | |
3352 | } | |
3353 | errno = EINVAL; | |
3354 | return -1; | |
760ac839 | 3355 | } |
c411622e | 3356 | #else |
c411622e | 3357 | #undef PerlIO_setpos |
3358 | int | |
766a733e | 3359 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 3360 | { |
766a733e NIS |
3361 | dTHX; |
3362 | if (SvOK(pos)) | |
3363 | { | |
3364 | STRLEN len; | |
3365 | Fpos_t *fpos = (Fpos_t *) SvPV(pos,len); | |
3366 | if (f && len == sizeof(Fpos_t)) | |
3367 | { | |
2d4389e4 | 3368 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3369 | return fsetpos64(f, fpos); |
d9b3e12d | 3370 | #else |
766a733e | 3371 | return fsetpos(f, fpos); |
d9b3e12d | 3372 | #endif |
766a733e NIS |
3373 | } |
3374 | } | |
3375 | errno = EINVAL; | |
3376 | return -1; | |
c411622e | 3377 | } |
3378 | #endif | |
760ac839 LW |
3379 | |
3380 | #ifndef HAS_FGETPOS | |
3381 | #undef PerlIO_getpos | |
3382 | int | |
766a733e | 3383 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 3384 | { |
766a733e NIS |
3385 | dTHX; |
3386 | Off_t posn = PerlIO_tell(f); | |
3387 | sv_setpvn(pos,(char *)&posn,sizeof(posn)); | |
3388 | return (posn == (Off_t)-1) ? -1 : 0; | |
760ac839 | 3389 | } |
c411622e | 3390 | #else |
c411622e | 3391 | #undef PerlIO_getpos |
3392 | int | |
766a733e | 3393 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 3394 | { |
766a733e NIS |
3395 | dTHX; |
3396 | Fpos_t fpos; | |
3397 | int code; | |
2d4389e4 | 3398 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3399 | code = fgetpos64(f, &fpos); |
d9b3e12d | 3400 | #else |
766a733e | 3401 | code = fgetpos(f, &fpos); |
d9b3e12d | 3402 | #endif |
766a733e NIS |
3403 | sv_setpvn(pos,(char *)&fpos,sizeof(fpos)); |
3404 | return code; | |
c411622e | 3405 | } |
3406 | #endif | |
760ac839 LW |
3407 | |
3408 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
3409 | ||
3410 | int | |
c78749f2 | 3411 | vprintf(char *pat, char *args) |
662a7e3f CS |
3412 | { |
3413 | _doprnt(pat, args, stdout); | |
3414 | return 0; /* wrong, but perl doesn't use the return value */ | |
3415 | } | |
3416 | ||
3417 | int | |
c78749f2 | 3418 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
3419 | { |
3420 | _doprnt(pat, args, fd); | |
3421 | return 0; /* wrong, but perl doesn't use the return value */ | |
3422 | } | |
3423 | ||
3424 | #endif | |
3425 | ||
3426 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 3427 | int |
8ac85365 | 3428 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
3429 | { |
3430 | int val = vsprintf(s, fmt, ap); | |
3431 | if (n >= 0) | |
3432 | { | |
8c86a920 | 3433 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 3434 | { |
bf49b057 | 3435 | dTHX; |
fb4a9925 JH |
3436 | (void)PerlIO_puts(Perl_error_log, |
3437 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 3438 | my_exit(1); |
760ac839 LW |
3439 | } |
3440 | } | |
3441 | return val; | |
3442 | } | |
3443 | #endif | |
3444 | ||
3445 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 3446 | int |
760ac839 | 3447 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
3448 | { |
3449 | va_list ap; | |
3450 | int result; | |
760ac839 | 3451 | va_start(ap,fmt); |
760ac839 LW |
3452 | result = PerlIO_vsprintf(s, n, fmt, ap); |
3453 | va_end(ap); | |
3454 | return result; | |
3455 | } | |
3456 | #endif | |
3457 | ||
c5be433b | 3458 |