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 | ||
36 | ||
ac27b0f5 NIS |
37 | #ifndef PERLIO_LAYERS |
38 | int | |
39 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
40 | { | |
95c70f20 NIS |
41 | if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw")) |
42 | { | |
43 | return 0; | |
88b61e10 | 44 | } |
ac27b0f5 | 45 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names); |
5a2dd417 | 46 | /* NOTREACHED */ |
88b61e10 | 47 | return -1; |
ac27b0f5 | 48 | } |
60382766 NIS |
49 | |
50 | int | |
f5b9d040 | 51 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 NIS |
52 | { |
53 | /* This used to be contents of do_binmode in doio.c */ | |
54 | #ifdef DOSISH | |
55 | # if defined(atarist) || defined(__MINT__) | |
f5b9d040 | 56 | if (!fflush(fp)) { |
60382766 NIS |
57 | if (mode & O_BINARY) |
58 | ((FILE*)fp)->_flag |= _IOBIN; | |
59 | else | |
60 | ((FILE*)fp)->_flag &= ~ _IOBIN; | |
61 | return 1; | |
62 | } | |
63 | return 0; | |
64 | # else | |
f5b9d040 | 65 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
60382766 NIS |
66 | # if defined(WIN32) && defined(__BORLANDC__) |
67 | /* The translation mode of the stream is maintained independent | |
68 | * of the translation mode of the fd in the Borland RTL (heavy | |
69 | * digging through their runtime sources reveal). User has to | |
70 | * set the mode explicitly for the stream (though they don't | |
71 | * document this anywhere). GSAR 97-5-24 | |
72 | */ | |
f5b9d040 | 73 | fseek(fp,0L,0); |
60382766 | 74 | if (mode & O_BINARY) |
f5b9d040 | 75 | fp->flags |= _F_BIN; |
60382766 | 76 | else |
f5b9d040 | 77 | fp->flags &= ~ _F_BIN; |
60382766 NIS |
78 | # endif |
79 | return 1; | |
80 | } | |
81 | else | |
82 | return 0; | |
83 | # endif | |
84 | #else | |
85 | # if defined(USEMYBINMODE) | |
86 | if (my_binmode(fp, iotype, mode) != FALSE) | |
87 | return 1; | |
88 | else | |
89 | return 0; | |
90 | # else | |
91 | return 1; | |
92 | # endif | |
93 | #endif | |
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 NIS |
419 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
420 | } | |
421 | ||
422 | PerlIO_funcs * | |
423 | PerlIO_default_layer(I32 n) | |
424 | { | |
425 | dTHX; | |
426 | SV **svp; | |
427 | SV *layer; | |
428 | PerlIO_funcs *tab = &PerlIO_stdio; | |
429 | int len; | |
430 | if (!PerlIO_layer_hv) | |
431 | { | |
ac27b0f5 | 432 | const char *s = PerlEnv_getenv("PERLIO"); |
b931b1d9 NIS |
433 | newXS("perlio::import",XS_perlio_import,__FILE__); |
434 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
435 | #if 0 | |
b13b2135 | 436 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 NIS |
437 | #endif |
438 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); | |
439 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); | |
f3862f8b | 440 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b NIS |
441 | PerlIO_define_layer(&PerlIO_perlio); |
442 | PerlIO_define_layer(&PerlIO_stdio); | |
66ecd56b | 443 | PerlIO_define_layer(&PerlIO_crlf); |
06da4f11 NIS |
444 | #ifdef HAS_MMAP |
445 | PerlIO_define_layer(&PerlIO_mmap); | |
446 | #endif | |
f3862f8b NIS |
447 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
448 | if (s) | |
449 | { | |
450 | while (*s) | |
451 | { | |
00b02797 | 452 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b NIS |
453 | s++; |
454 | if (*s) | |
455 | { | |
ac27b0f5 | 456 | const char *e = s; |
f3862f8b | 457 | SV *layer; |
00b02797 | 458 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b | 459 | e++; |
ac27b0f5 NIS |
460 | if (*s == ':') |
461 | s++; | |
f3862f8b NIS |
462 | layer = PerlIO_find_layer(s,e-s); |
463 | if (layer) | |
464 | { | |
465 | PerlIO_debug("Pushing %.*s\n",(e-s),s); | |
466 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
467 | } | |
468 | else | |
ef0f9817 | 469 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b NIS |
470 | s = e; |
471 | } | |
472 | } | |
473 | } | |
474 | } | |
475 | len = av_len(PerlIO_layer_av); | |
476 | if (len < 1) | |
477 | { | |
f5b9d040 | 478 | if (O_BINARY != O_TEXT) |
f3862f8b | 479 | { |
f5b9d040 | 480 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_crlf.name,0))); |
f3862f8b NIS |
481 | } |
482 | else | |
a4d3c1d3 | 483 | { |
f5b9d040 NIS |
484 | if (PerlIO_stdio.Set_ptrcnt) |
485 | { | |
486 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); | |
487 | } | |
a4d3c1d3 | 488 | else |
f5b9d040 NIS |
489 | { |
490 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); | |
491 | } | |
a4d3c1d3 | 492 | } |
f3862f8b NIS |
493 | len = av_len(PerlIO_layer_av); |
494 | } | |
495 | if (n < 0) | |
496 | n += len+1; | |
497 | svp = av_fetch(PerlIO_layer_av,n,0); | |
498 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
499 | { | |
e7778b43 | 500 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b NIS |
501 | } |
502 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
503 | return tab; | |
504 | } | |
505 | ||
60382766 NIS |
506 | #define PerlIO_default_top() PerlIO_default_layer(-1) |
507 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
508 | ||
509 | void | |
510 | PerlIO_stdstreams() | |
511 | { | |
512 | if (!_perlio) | |
513 | { | |
5f1a76d0 NIS |
514 | dTHX; |
515 | PerlIO_allocate(aTHX); | |
f5b9d040 NIS |
516 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
517 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); | |
518 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); | |
60382766 NIS |
519 | } |
520 | } | |
521 | ||
522 | PerlIO * | |
33af2bc7 | 523 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode,const char *arg,STRLEN len) |
60382766 | 524 | { |
5f1a76d0 | 525 | dTHX; |
60382766 | 526 | PerlIOl *l = NULL; |
5f1a76d0 | 527 | l = PerlMemShared_calloc(tab->size,sizeof(char)); |
60382766 NIS |
528 | if (l) |
529 | { | |
530 | Zero(l,tab->size,char); | |
531 | l->next = *f; | |
532 | l->tab = tab; | |
533 | *f = l; | |
a4d3c1d3 | 534 | PerlIO_debug("PerlIO_push f=%p %s %s\n",f,tab->name,(mode) ? mode : "(Null)"); |
33af2bc7 | 535 | if ((*l->tab->Pushed)(f,mode,arg,len) != 0) |
60382766 NIS |
536 | { |
537 | PerlIO_pop(f); | |
538 | return NULL; | |
539 | } | |
540 | } | |
541 | return f; | |
542 | } | |
543 | ||
ac27b0f5 NIS |
544 | int |
545 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
546 | { | |
547 | if (names) | |
548 | { | |
549 | const char *s = names; | |
550 | while (*s) | |
551 | { | |
552 | while (isSPACE(*s)) | |
553 | s++; | |
554 | if (*s == ':') | |
555 | s++; | |
556 | if (*s) | |
557 | { | |
558 | const char *e = s; | |
33af2bc7 NIS |
559 | const char *as = Nullch; |
560 | const char *ae = Nullch; | |
561 | int count = 0; | |
ac27b0f5 | 562 | while (*e && *e != ':' && !isSPACE(*e)) |
33af2bc7 NIS |
563 | { |
564 | if (*e == '(') | |
565 | { | |
566 | if (!as) | |
567 | as = e; | |
568 | count++; | |
569 | } | |
570 | else if (*e == ')') | |
571 | { | |
572 | if (as && --count == 0) | |
573 | ae = e; | |
574 | } | |
575 | e++; | |
576 | } | |
ac27b0f5 NIS |
577 | if (e > s) |
578 | { | |
60382766 | 579 | if ((e - s) == 3 && strncmp(s,"raw",3) == 0) |
ac27b0f5 | 580 | { |
60382766 NIS |
581 | /* Pop back to bottom layer */ |
582 | if (PerlIONext(f)) | |
ac27b0f5 | 583 | { |
60382766 NIS |
584 | PerlIO_flush(f); |
585 | while (PerlIONext(f)) | |
586 | { | |
587 | PerlIO_pop(f); | |
588 | } | |
ac27b0f5 NIS |
589 | } |
590 | } | |
7d59b7e4 NIS |
591 | else if ((e - s) == 4 && strncmp(s,"utf8",4) == 0) |
592 | { | |
593 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
594 | } | |
595 | else if ((e - s) == 5 && strncmp(s,"bytes",5) == 0) | |
596 | { | |
597 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
598 | } | |
ac27b0f5 | 599 | else |
60382766 | 600 | { |
33af2bc7 NIS |
601 | STRLEN len = ((as) ? as : e)-s; |
602 | SV *layer = PerlIO_find_layer(s,len); | |
60382766 NIS |
603 | if (layer) |
604 | { | |
605 | PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer))); | |
606 | if (tab) | |
607 | { | |
33af2bc7 NIS |
608 | len = (as) ? (ae-(as++)-1) : 0; |
609 | if (!PerlIO_push(f,tab,mode,as,len)) | |
60382766 NIS |
610 | return -1; |
611 | } | |
612 | } | |
613 | else | |
33af2bc7 | 614 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)len,s); |
60382766 | 615 | } |
ac27b0f5 NIS |
616 | } |
617 | s = e; | |
618 | } | |
619 | } | |
620 | } | |
621 | return 0; | |
622 | } | |
623 | ||
f3862f8b | 624 | |
9e353e3b | 625 | |
60382766 NIS |
626 | /*--------------------------------------------------------------------------------------*/ |
627 | /* Given the abstraction above the public API functions */ | |
628 | ||
629 | int | |
f5b9d040 | 630 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 631 | { |
86295796 | 632 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
a4d3c1d3 | 633 | f,PerlIOBase(f)->tab->name,iotype,mode, (names) ? names : "(Null)"); |
33af2bc7 | 634 | if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) |
76ced9ad | 635 | { |
f5b9d040 | 636 | PerlIO *top = f; |
60382766 NIS |
637 | PerlIOl *l; |
638 | while (l = *top) | |
76ced9ad | 639 | { |
60382766 NIS |
640 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
641 | { | |
642 | PerlIO_flush(top); | |
a4d3c1d3 | 643 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 NIS |
644 | break; |
645 | } | |
646 | top = PerlIONext(top); | |
76ced9ad NIS |
647 | } |
648 | } | |
f5b9d040 NIS |
649 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; |
650 | } | |
651 | ||
652 | #undef PerlIO__close | |
653 | int | |
654 | PerlIO__close(PerlIO *f) | |
655 | { | |
656 | return (*PerlIOBase(f)->tab->Close)(f); | |
76ced9ad NIS |
657 | } |
658 | ||
5f1a76d0 NIS |
659 | #undef PerlIO_fdupopen |
660 | PerlIO * | |
661 | PerlIO_fdupopen(pTHX_ PerlIO *f) | |
662 | { | |
663 | char buf[8]; | |
664 | int fd = PerlLIO_dup(PerlIO_fileno(f)); | |
665 | PerlIO *new = PerlIO_fdopen(fd,PerlIO_modestr(f,buf)); | |
666 | if (new) | |
667 | { | |
668 | Off_t posn = PerlIO_tell(f); | |
669 | PerlIO_seek(new,posn,SEEK_SET); | |
670 | } | |
766a733e | 671 | return new; |
5f1a76d0 | 672 | } |
f5b9d040 | 673 | |
b931b1d9 NIS |
674 | #undef PerlIO_close |
675 | int | |
676 | PerlIO_close(PerlIO *f) | |
677 | { | |
678 | int code = (*PerlIOBase(f)->tab->Close)(f); | |
679 | while (*f) | |
680 | { | |
681 | PerlIO_pop(f); | |
682 | } | |
683 | return code; | |
684 | } | |
685 | ||
686 | #undef PerlIO_fileno | |
687 | int | |
688 | PerlIO_fileno(PerlIO *f) | |
689 | { | |
690 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
691 | } | |
692 | ||
693 | ||
694 | ||
9e353e3b NIS |
695 | #undef PerlIO_fdopen |
696 | PerlIO * | |
697 | PerlIO_fdopen(int fd, const char *mode) | |
698 | { | |
699 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
700 | if (!_perlio) |
701 | PerlIO_stdstreams(); | |
06da4f11 | 702 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b NIS |
703 | } |
704 | ||
6f9d8c32 NIS |
705 | #undef PerlIO_open |
706 | PerlIO * | |
707 | PerlIO_open(const char *path, const char *mode) | |
708 | { | |
9e353e3b | 709 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
710 | if (!_perlio) |
711 | PerlIO_stdstreams(); | |
06da4f11 | 712 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 NIS |
713 | } |
714 | ||
9e353e3b NIS |
715 | #undef PerlIO_reopen |
716 | PerlIO * | |
717 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 718 | { |
9e353e3b | 719 | if (f) |
6f9d8c32 | 720 | { |
9e353e3b NIS |
721 | PerlIO_flush(f); |
722 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
723 | { | |
33af2bc7 | 724 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode,Nullch,0) == 0) |
06da4f11 | 725 | return f; |
9e353e3b NIS |
726 | } |
727 | return NULL; | |
6f9d8c32 | 728 | } |
9e353e3b NIS |
729 | else |
730 | return PerlIO_open(path,mode); | |
760ac839 LW |
731 | } |
732 | ||
9e353e3b NIS |
733 | #undef PerlIO_read |
734 | SSize_t | |
735 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 736 | { |
9e353e3b | 737 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
738 | } |
739 | ||
313ca112 NIS |
740 | #undef PerlIO_unread |
741 | SSize_t | |
742 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 743 | { |
313ca112 | 744 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
745 | } |
746 | ||
9e353e3b NIS |
747 | #undef PerlIO_write |
748 | SSize_t | |
749 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 750 | { |
9e353e3b | 751 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
752 | } |
753 | ||
9e353e3b | 754 | #undef PerlIO_seek |
6f9d8c32 | 755 | int |
9e353e3b | 756 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 757 | { |
9e353e3b | 758 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
759 | } |
760 | ||
9e353e3b NIS |
761 | #undef PerlIO_tell |
762 | Off_t | |
763 | PerlIO_tell(PerlIO *f) | |
760ac839 | 764 | { |
9e353e3b | 765 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
766 | } |
767 | ||
9e353e3b | 768 | #undef PerlIO_flush |
6f9d8c32 | 769 | int |
9e353e3b | 770 | PerlIO_flush(PerlIO *f) |
760ac839 | 771 | { |
6f9d8c32 NIS |
772 | if (f) |
773 | { | |
9e353e3b | 774 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 775 | } |
9e353e3b | 776 | else |
6f9d8c32 | 777 | { |
05d1247b | 778 | PerlIO **table = &_perlio; |
9e353e3b | 779 | int code = 0; |
05d1247b | 780 | while ((f = *table)) |
6f9d8c32 | 781 | { |
05d1247b NIS |
782 | int i; |
783 | table = (PerlIO **)(f++); | |
784 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
785 | { |
786 | if (*f && PerlIO_flush(f) != 0) | |
787 | code = -1; | |
05d1247b | 788 | f++; |
9e353e3b | 789 | } |
6f9d8c32 | 790 | } |
9e353e3b | 791 | return code; |
6f9d8c32 | 792 | } |
760ac839 LW |
793 | } |
794 | ||
06da4f11 NIS |
795 | #undef PerlIO_fill |
796 | int | |
797 | PerlIO_fill(PerlIO *f) | |
798 | { | |
799 | return (*PerlIOBase(f)->tab->Fill)(f); | |
800 | } | |
801 | ||
f3862f8b NIS |
802 | #undef PerlIO_isutf8 |
803 | int | |
804 | PerlIO_isutf8(PerlIO *f) | |
805 | { | |
806 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
807 | } | |
808 | ||
9e353e3b | 809 | #undef PerlIO_eof |
6f9d8c32 | 810 | int |
9e353e3b | 811 | PerlIO_eof(PerlIO *f) |
760ac839 | 812 | { |
9e353e3b NIS |
813 | return (*PerlIOBase(f)->tab->Eof)(f); |
814 | } | |
815 | ||
816 | #undef PerlIO_error | |
817 | int | |
818 | PerlIO_error(PerlIO *f) | |
819 | { | |
820 | return (*PerlIOBase(f)->tab->Error)(f); | |
821 | } | |
822 | ||
823 | #undef PerlIO_clearerr | |
824 | void | |
825 | PerlIO_clearerr(PerlIO *f) | |
826 | { | |
f5b9d040 NIS |
827 | if (f && *f) |
828 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
9e353e3b NIS |
829 | } |
830 | ||
831 | #undef PerlIO_setlinebuf | |
832 | void | |
833 | PerlIO_setlinebuf(PerlIO *f) | |
834 | { | |
835 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
836 | } | |
837 | ||
838 | #undef PerlIO_has_base | |
839 | int | |
840 | PerlIO_has_base(PerlIO *f) | |
841 | { | |
842 | if (f && *f) | |
6f9d8c32 | 843 | { |
9e353e3b | 844 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 845 | } |
9e353e3b | 846 | return 0; |
760ac839 LW |
847 | } |
848 | ||
9e353e3b NIS |
849 | #undef PerlIO_fast_gets |
850 | int | |
851 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 852 | { |
5e2ab84b | 853 | if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) |
6f9d8c32 | 854 | { |
5e2ab84b NIS |
855 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
856 | return (tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 857 | } |
9e353e3b NIS |
858 | return 0; |
859 | } | |
860 | ||
861 | #undef PerlIO_has_cntptr | |
862 | int | |
863 | PerlIO_has_cntptr(PerlIO *f) | |
864 | { | |
865 | if (f && *f) | |
866 | { | |
867 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
868 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
869 | } | |
870 | return 0; | |
871 | } | |
872 | ||
873 | #undef PerlIO_canset_cnt | |
874 | int | |
875 | PerlIO_canset_cnt(PerlIO *f) | |
876 | { | |
877 | if (f && *f) | |
878 | { | |
c7fc522f NIS |
879 | PerlIOl *l = PerlIOBase(f); |
880 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 881 | } |
c7fc522f | 882 | return 0; |
760ac839 LW |
883 | } |
884 | ||
885 | #undef PerlIO_get_base | |
888911fc | 886 | STDCHAR * |
a20bf0c3 | 887 | PerlIO_get_base(PerlIO *f) |
760ac839 | 888 | { |
9e353e3b NIS |
889 | return (*PerlIOBase(f)->tab->Get_base)(f); |
890 | } | |
891 | ||
892 | #undef PerlIO_get_bufsiz | |
893 | int | |
894 | PerlIO_get_bufsiz(PerlIO *f) | |
895 | { | |
896 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
897 | } | |
898 | ||
899 | #undef PerlIO_get_ptr | |
900 | STDCHAR * | |
901 | PerlIO_get_ptr(PerlIO *f) | |
902 | { | |
5e2ab84b NIS |
903 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
904 | if (tab->Get_ptr == NULL) | |
905 | return NULL; | |
906 | return (*tab->Get_ptr)(f); | |
9e353e3b NIS |
907 | } |
908 | ||
909 | #undef PerlIO_get_cnt | |
05d1247b | 910 | int |
9e353e3b NIS |
911 | PerlIO_get_cnt(PerlIO *f) |
912 | { | |
5e2ab84b NIS |
913 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
914 | if (tab->Get_cnt == NULL) | |
915 | return 0; | |
916 | return (*tab->Get_cnt)(f); | |
9e353e3b NIS |
917 | } |
918 | ||
919 | #undef PerlIO_set_cnt | |
920 | void | |
05d1247b | 921 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 922 | { |
f3862f8b | 923 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
924 | } |
925 | ||
926 | #undef PerlIO_set_ptrcnt | |
927 | void | |
05d1247b | 928 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 929 | { |
5e2ab84b NIS |
930 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
931 | if (tab->Set_ptrcnt == NULL) | |
932 | { | |
933 | dTHX; | |
934 | Perl_croak(aTHX_ "PerlIO buffer snooping abuse"); | |
935 | } | |
f3862f8b | 936 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
937 | } |
938 | ||
939 | /*--------------------------------------------------------------------------------------*/ | |
940 | /* "Methods" of the "base class" */ | |
941 | ||
942 | IV | |
943 | PerlIOBase_fileno(PerlIO *f) | |
944 | { | |
945 | return PerlIO_fileno(PerlIONext(f)); | |
946 | } | |
947 | ||
f5b9d040 NIS |
948 | char * |
949 | PerlIO_modestr(PerlIO *f,char *buf) | |
950 | { | |
951 | char *s = buf; | |
952 | IV flags = PerlIOBase(f)->flags; | |
5f1a76d0 NIS |
953 | if (flags & PERLIO_F_APPEND) |
954 | { | |
955 | *s++ = 'a'; | |
956 | if (flags & PERLIO_F_CANREAD) | |
957 | { | |
958 | *s++ = '+'; | |
959 | } | |
766a733e | 960 | } |
5f1a76d0 NIS |
961 | else if (flags & PERLIO_F_CANREAD) |
962 | { | |
963 | *s++ = 'r'; | |
964 | if (flags & PERLIO_F_CANWRITE) | |
965 | *s++ = '+'; | |
966 | } | |
967 | else if (flags & PERLIO_F_CANWRITE) | |
968 | { | |
969 | *s++ = 'w'; | |
970 | if (flags & PERLIO_F_CANREAD) | |
971 | { | |
972 | *s++ = '+'; | |
973 | } | |
974 | } | |
975 | #if O_TEXT != O_BINARY | |
976 | if (!(flags & PERLIO_F_CRLF)) | |
a4d3c1d3 | 977 | *s++ = 'b'; |
5f1a76d0 | 978 | #endif |
f5b9d040 NIS |
979 | *s = '\0'; |
980 | return buf; | |
981 | } | |
982 | ||
76ced9ad | 983 | IV |
33af2bc7 | 984 | PerlIOBase_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) |
9e353e3b | 985 | { |
76ced9ad | 986 | PerlIOl *l = PerlIOBase(f); |
f5b9d040 NIS |
987 | const char *omode = mode; |
988 | char temp[8]; | |
5e2ab84b | 989 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
76ced9ad | 990 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
f5b9d040 | 991 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
5e2ab84b NIS |
992 | if (tab->Set_ptrcnt != NULL) |
993 | l->flags |= PERLIO_F_FASTGETS; | |
76ced9ad | 994 | if (mode) |
6f9d8c32 | 995 | { |
76ced9ad | 996 | switch (*mode++) |
06da4f11 | 997 | { |
76ced9ad | 998 | case 'r': |
f5b9d040 | 999 | l->flags |= PERLIO_F_CANREAD; |
76ced9ad NIS |
1000 | break; |
1001 | case 'a': | |
f5b9d040 | 1002 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1003 | break; |
1004 | case 'w': | |
f5b9d040 | 1005 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad NIS |
1006 | break; |
1007 | default: | |
1008 | errno = EINVAL; | |
1009 | return -1; | |
1010 | } | |
1011 | while (*mode) | |
1012 | { | |
1013 | switch (*mode++) | |
1014 | { | |
1015 | case '+': | |
1016 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
1017 | break; | |
1018 | case 'b': | |
f5b9d040 NIS |
1019 | l->flags &= ~PERLIO_F_CRLF; |
1020 | break; | |
1021 | case 't': | |
1022 | l->flags |= PERLIO_F_CRLF; | |
76ced9ad NIS |
1023 | break; |
1024 | default: | |
1025 | errno = EINVAL; | |
1026 | return -1; | |
1027 | } | |
06da4f11 | 1028 | } |
6f9d8c32 | 1029 | } |
76ced9ad NIS |
1030 | else |
1031 | { | |
1032 | if (l->next) | |
1033 | { | |
1034 | l->flags |= l->next->flags & | |
f5b9d040 | 1035 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad NIS |
1036 | } |
1037 | } | |
5e2ab84b | 1038 | #if 0 |
4659c93f | 1039 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08"UVxf" (%s)\n", |
f5b9d040 | 1040 | f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)", |
a4d3c1d3 | 1041 | l->flags,PerlIO_modestr(f,temp)); |
5e2ab84b | 1042 | #endif |
76ced9ad NIS |
1043 | return 0; |
1044 | } | |
1045 | ||
1046 | IV | |
1047 | PerlIOBase_popped(PerlIO *f) | |
1048 | { | |
1049 | return 0; | |
760ac839 LW |
1050 | } |
1051 | ||
9e353e3b NIS |
1052 | SSize_t |
1053 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1054 | { | |
1055 | Off_t old = PerlIO_tell(f); | |
72e44f29 | 1056 | SSize_t done; |
33af2bc7 | 1057 | PerlIO_push(f,&PerlIO_pending,"r",Nullch,0); |
72e44f29 NIS |
1058 | done = PerlIOBuf_unread(f,vbuf,count); |
1059 | PerlIOSelf(f,PerlIOBuf)->posn = old - done; | |
1060 | return done; | |
9e353e3b NIS |
1061 | } |
1062 | ||
1063 | IV | |
06da4f11 | 1064 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
1065 | { |
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | IV | |
06da4f11 NIS |
1070 | PerlIOBase_noop_fail(PerlIO *f) |
1071 | { | |
1072 | return -1; | |
1073 | } | |
1074 | ||
1075 | IV | |
9e353e3b NIS |
1076 | PerlIOBase_close(PerlIO *f) |
1077 | { | |
1078 | IV code = 0; | |
f5b9d040 | 1079 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
1080 | if (PerlIO_flush(f) != 0) |
1081 | code = -1; | |
f5b9d040 | 1082 | if (n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b NIS |
1083 | code = -1; |
1084 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
1085 | return code; | |
1086 | } | |
1087 | ||
1088 | IV | |
1089 | PerlIOBase_eof(PerlIO *f) | |
1090 | { | |
1091 | if (f && *f) | |
1092 | { | |
1093 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
1094 | } | |
1095 | return 1; | |
1096 | } | |
1097 | ||
1098 | IV | |
1099 | PerlIOBase_error(PerlIO *f) | |
1100 | { | |
1101 | if (f && *f) | |
1102 | { | |
1103 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
1104 | } | |
1105 | return 1; | |
1106 | } | |
1107 | ||
1108 | void | |
1109 | PerlIOBase_clearerr(PerlIO *f) | |
1110 | { | |
1111 | if (f && *f) | |
1112 | { | |
f5b9d040 NIS |
1113 | PerlIO *n = PerlIONext(f); |
1114 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); | |
1115 | if (n) | |
1116 | PerlIO_clearerr(n); | |
9e353e3b NIS |
1117 | } |
1118 | } | |
1119 | ||
1120 | void | |
1121 | PerlIOBase_setlinebuf(PerlIO *f) | |
1122 | { | |
1123 | ||
1124 | } | |
1125 | ||
9e353e3b NIS |
1126 | /*--------------------------------------------------------------------------------------*/ |
1127 | /* Bottom-most level for UNIX-like case */ | |
1128 | ||
1129 | typedef struct | |
1130 | { | |
1131 | struct _PerlIO base; /* The generic part */ | |
1132 | int fd; /* UNIX like file descriptor */ | |
1133 | int oflags; /* open/fcntl flags */ | |
1134 | } PerlIOUnix; | |
1135 | ||
6f9d8c32 | 1136 | int |
9e353e3b | 1137 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 1138 | { |
9e353e3b NIS |
1139 | int oflags = -1; |
1140 | switch(*mode) | |
1141 | { | |
1142 | case 'r': | |
1143 | oflags = O_RDONLY; | |
1144 | if (*++mode == '+') | |
1145 | { | |
1146 | oflags = O_RDWR; | |
1147 | mode++; | |
1148 | } | |
1149 | break; | |
1150 | ||
1151 | case 'w': | |
1152 | oflags = O_CREAT|O_TRUNC; | |
1153 | if (*++mode == '+') | |
1154 | { | |
1155 | oflags |= O_RDWR; | |
1156 | mode++; | |
1157 | } | |
1158 | else | |
1159 | oflags |= O_WRONLY; | |
1160 | break; | |
1161 | ||
1162 | case 'a': | |
1163 | oflags = O_CREAT|O_APPEND; | |
1164 | if (*++mode == '+') | |
1165 | { | |
1166 | oflags |= O_RDWR; | |
1167 | mode++; | |
1168 | } | |
1169 | else | |
1170 | oflags |= O_WRONLY; | |
1171 | break; | |
1172 | } | |
83b075c3 NIS |
1173 | if (*mode == 'b') |
1174 | { | |
f5b9d040 NIS |
1175 | oflags |= O_BINARY; |
1176 | oflags &= ~O_TEXT; | |
1177 | mode++; | |
1178 | } | |
1179 | else if (*mode == 't') | |
1180 | { | |
1181 | oflags |= O_TEXT; | |
1182 | oflags &= ~O_BINARY; | |
60382766 NIS |
1183 | mode++; |
1184 | } | |
99efab12 NIS |
1185 | /* Always open in binary mode */ |
1186 | oflags |= O_BINARY; | |
9e353e3b | 1187 | if (*mode || oflags == -1) |
6f9d8c32 | 1188 | { |
9e353e3b NIS |
1189 | errno = EINVAL; |
1190 | oflags = -1; | |
6f9d8c32 | 1191 | } |
9e353e3b NIS |
1192 | return oflags; |
1193 | } | |
1194 | ||
1195 | IV | |
1196 | PerlIOUnix_fileno(PerlIO *f) | |
1197 | { | |
1198 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
1199 | } | |
1200 | ||
1201 | PerlIO * | |
06da4f11 | 1202 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b | 1203 | { |
5f1a76d0 | 1204 | dTHX; |
9e353e3b | 1205 | PerlIO *f = NULL; |
c7fc522f NIS |
1206 | if (*mode == 'I') |
1207 | mode++; | |
9e353e3b NIS |
1208 | if (fd >= 0) |
1209 | { | |
1210 | int oflags = PerlIOUnix_oflags(mode); | |
1211 | if (oflags != -1) | |
1212 | { | |
33af2bc7 | 1213 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOUnix); |
9e353e3b NIS |
1214 | s->fd = fd; |
1215 | s->oflags = oflags; | |
1216 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1217 | } | |
1218 | } | |
1219 | return f; | |
1220 | } | |
1221 | ||
1222 | PerlIO * | |
06da4f11 | 1223 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b | 1224 | { |
adb71456 | 1225 | dTHX; |
9e353e3b NIS |
1226 | PerlIO *f = NULL; |
1227 | int oflags = PerlIOUnix_oflags(mode); | |
1228 | if (oflags != -1) | |
1229 | { | |
00b02797 | 1230 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
1231 | if (fd >= 0) |
1232 | { | |
33af2bc7 | 1233 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOUnix); |
9e353e3b NIS |
1234 | s->fd = fd; |
1235 | s->oflags = oflags; | |
1236 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1237 | } | |
1238 | } | |
1239 | return f; | |
760ac839 LW |
1240 | } |
1241 | ||
760ac839 | 1242 | int |
9e353e3b | 1243 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 1244 | { |
9e353e3b NIS |
1245 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
1246 | int oflags = PerlIOUnix_oflags(mode); | |
1247 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
1248 | (*PerlIOBase(f)->tab->Close)(f); | |
1249 | if (oflags != -1) | |
1250 | { | |
adb71456 | 1251 | dTHX; |
00b02797 | 1252 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
1253 | if (fd >= 0) |
1254 | { | |
1255 | s->fd = fd; | |
1256 | s->oflags = oflags; | |
1257 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
1258 | return 0; | |
1259 | } | |
1260 | } | |
1261 | return -1; | |
1262 | } | |
1263 | ||
1264 | SSize_t | |
1265 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
1266 | { | |
adb71456 | 1267 | dTHX; |
9e353e3b | 1268 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 NIS |
1269 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1270 | return 0; | |
9e353e3b NIS |
1271 | while (1) |
1272 | { | |
00b02797 | 1273 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 1274 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1275 | { |
1276 | if (len < 0) | |
1277 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1278 | else if (len == 0 && count != 0) | |
1279 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1280 | return len; | |
1281 | } | |
9e353e3b NIS |
1282 | } |
1283 | } | |
1284 | ||
1285 | SSize_t | |
1286 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
1287 | { | |
adb71456 | 1288 | dTHX; |
9e353e3b NIS |
1289 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1290 | while (1) | |
1291 | { | |
00b02797 | 1292 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 1293 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
1294 | { |
1295 | if (len < 0) | |
1296 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1297 | return len; | |
1298 | } | |
9e353e3b NIS |
1299 | } |
1300 | } | |
1301 | ||
1302 | IV | |
1303 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
1304 | { | |
adb71456 | 1305 | dTHX; |
00b02797 | 1306 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 1307 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
1308 | return (new == (Off_t) -1) ? -1 : 0; |
1309 | } | |
1310 | ||
1311 | Off_t | |
1312 | PerlIOUnix_tell(PerlIO *f) | |
1313 | { | |
adb71456 | 1314 | dTHX; |
766a733e | 1315 | Off_t posn = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
00b02797 | 1316 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
1317 | } |
1318 | ||
1319 | IV | |
1320 | PerlIOUnix_close(PerlIO *f) | |
1321 | { | |
adb71456 | 1322 | dTHX; |
9e353e3b NIS |
1323 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1324 | int code = 0; | |
00b02797 | 1325 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
1326 | { |
1327 | if (errno != EINTR) | |
1328 | { | |
1329 | code = -1; | |
1330 | break; | |
1331 | } | |
1332 | } | |
1333 | if (code == 0) | |
1334 | { | |
1335 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
1336 | } | |
1337 | return code; | |
1338 | } | |
1339 | ||
1340 | PerlIO_funcs PerlIO_unix = { | |
1341 | "unix", | |
1342 | sizeof(PerlIOUnix), | |
f5b9d040 | 1343 | PERLIO_K_RAW, |
9e353e3b NIS |
1344 | PerlIOUnix_fileno, |
1345 | PerlIOUnix_fdopen, | |
1346 | PerlIOUnix_open, | |
1347 | PerlIOUnix_reopen, | |
06da4f11 NIS |
1348 | PerlIOBase_pushed, |
1349 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1350 | PerlIOUnix_read, |
1351 | PerlIOBase_unread, | |
1352 | PerlIOUnix_write, | |
1353 | PerlIOUnix_seek, | |
1354 | PerlIOUnix_tell, | |
1355 | PerlIOUnix_close, | |
76ced9ad NIS |
1356 | PerlIOBase_noop_ok, /* flush */ |
1357 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
1358 | PerlIOBase_eof, |
1359 | PerlIOBase_error, | |
1360 | PerlIOBase_clearerr, | |
1361 | PerlIOBase_setlinebuf, | |
1362 | NULL, /* get_base */ | |
1363 | NULL, /* get_bufsiz */ | |
1364 | NULL, /* get_ptr */ | |
1365 | NULL, /* get_cnt */ | |
1366 | NULL, /* set_ptrcnt */ | |
1367 | }; | |
1368 | ||
1369 | /*--------------------------------------------------------------------------------------*/ | |
1370 | /* stdio as a layer */ | |
1371 | ||
1372 | typedef struct | |
1373 | { | |
1374 | struct _PerlIO base; | |
1375 | FILE * stdio; /* The stream */ | |
1376 | } PerlIOStdio; | |
1377 | ||
1378 | IV | |
1379 | PerlIOStdio_fileno(PerlIO *f) | |
1380 | { | |
adb71456 | 1381 | dTHX; |
eaf8b698 | 1382 | return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1383 | } |
1384 | ||
766a733e | 1385 | char * |
f5b9d040 NIS |
1386 | PerlIOStdio_mode(const char *mode,char *tmode) |
1387 | { | |
766a733e NIS |
1388 | char *ret = tmode; |
1389 | while (*mode) | |
1390 | { | |
1391 | *tmode++ = *mode++; | |
1392 | } | |
f5b9d040 NIS |
1393 | if (O_BINARY != O_TEXT) |
1394 | { | |
f5b9d040 | 1395 | *tmode++ = 'b'; |
f5b9d040 | 1396 | } |
766a733e | 1397 | *tmode = '\0'; |
f5b9d040 NIS |
1398 | return ret; |
1399 | } | |
9e353e3b NIS |
1400 | |
1401 | PerlIO * | |
06da4f11 | 1402 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b | 1403 | { |
adb71456 | 1404 | dTHX; |
9e353e3b | 1405 | PerlIO *f = NULL; |
c7fc522f | 1406 | int init = 0; |
f5b9d040 | 1407 | char tmode[8]; |
c7fc522f NIS |
1408 | if (*mode == 'I') |
1409 | { | |
1410 | init = 1; | |
1411 | mode++; | |
1412 | } | |
9e353e3b NIS |
1413 | if (fd >= 0) |
1414 | { | |
c7fc522f NIS |
1415 | FILE *stdio = NULL; |
1416 | if (init) | |
1417 | { | |
1418 | switch(fd) | |
1419 | { | |
1420 | case 0: | |
eaf8b698 | 1421 | stdio = PerlSIO_stdin; |
c7fc522f NIS |
1422 | break; |
1423 | case 1: | |
eaf8b698 | 1424 | stdio = PerlSIO_stdout; |
c7fc522f NIS |
1425 | break; |
1426 | case 2: | |
eaf8b698 | 1427 | stdio = PerlSIO_stderr; |
c7fc522f NIS |
1428 | break; |
1429 | } | |
1430 | } | |
1431 | else | |
f5b9d040 | 1432 | { |
eaf8b698 | 1433 | stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); |
f5b9d040 | 1434 | } |
9e353e3b NIS |
1435 | if (stdio) |
1436 | { | |
33af2bc7 | 1437 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOStdio); |
9e353e3b NIS |
1438 | s->stdio = stdio; |
1439 | } | |
1440 | } | |
1441 | return f; | |
1442 | } | |
1443 | ||
1444 | #undef PerlIO_importFILE | |
1445 | PerlIO * | |
1446 | PerlIO_importFILE(FILE *stdio, int fl) | |
1447 | { | |
5f1a76d0 | 1448 | dTHX; |
9e353e3b NIS |
1449 | PerlIO *f = NULL; |
1450 | if (stdio) | |
1451 | { | |
33af2bc7 | 1452 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"r+",Nullch,0),PerlIOStdio); |
9e353e3b NIS |
1453 | s->stdio = stdio; |
1454 | } | |
1455 | return f; | |
1456 | } | |
1457 | ||
1458 | PerlIO * | |
06da4f11 | 1459 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b | 1460 | { |
adb71456 | 1461 | dTHX; |
9e353e3b | 1462 | PerlIO *f = NULL; |
eaf8b698 | 1463 | FILE *stdio = PerlSIO_fopen(path,mode); |
9e353e3b NIS |
1464 | if (stdio) |
1465 | { | |
f5b9d040 | 1466 | char tmode[8]; |
5f1a76d0 | 1467 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX), self, |
33af2bc7 | 1468 | (mode = PerlIOStdio_mode(mode,tmode)),Nullch,0), |
f5b9d040 | 1469 | PerlIOStdio); |
9e353e3b NIS |
1470 | s->stdio = stdio; |
1471 | } | |
1472 | return f; | |
760ac839 LW |
1473 | } |
1474 | ||
6f9d8c32 | 1475 | int |
9e353e3b NIS |
1476 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1477 | { | |
adb71456 | 1478 | dTHX; |
9e353e3b | 1479 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
f5b9d040 | 1480 | char tmode[8]; |
eaf8b698 | 1481 | FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); |
9e353e3b NIS |
1482 | if (!s->stdio) |
1483 | return -1; | |
1484 | s->stdio = stdio; | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | SSize_t | |
1489 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1490 | { | |
adb71456 | 1491 | dTHX; |
9e353e3b | 1492 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f | 1493 | SSize_t got = 0; |
9e353e3b NIS |
1494 | if (count == 1) |
1495 | { | |
1496 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1497 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1498 | * Linux's stdio does not do that for fread() | |
1499 | */ | |
eaf8b698 | 1500 | int ch = PerlSIO_fgetc(s); |
9e353e3b NIS |
1501 | if (ch != EOF) |
1502 | { | |
1503 | *buf = ch; | |
c7fc522f | 1504 | got = 1; |
9e353e3b | 1505 | } |
9e353e3b | 1506 | } |
c7fc522f | 1507 | else |
eaf8b698 | 1508 | got = PerlSIO_fread(vbuf,1,count,s); |
c7fc522f | 1509 | return got; |
9e353e3b NIS |
1510 | } |
1511 | ||
1512 | SSize_t | |
1513 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1514 | { | |
adb71456 | 1515 | dTHX; |
9e353e3b NIS |
1516 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
1517 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1518 | SSize_t unread = 0; | |
1519 | while (count > 0) | |
1520 | { | |
1521 | int ch = *buf-- & 0xff; | |
eaf8b698 | 1522 | if (PerlSIO_ungetc(ch,s) != ch) |
9e353e3b NIS |
1523 | break; |
1524 | unread++; | |
1525 | count--; | |
1526 | } | |
1527 | return unread; | |
1528 | } | |
1529 | ||
1530 | SSize_t | |
1531 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1532 | { | |
adb71456 | 1533 | dTHX; |
eaf8b698 | 1534 | return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1535 | } |
1536 | ||
1537 | IV | |
1538 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1539 | { | |
adb71456 | 1540 | dTHX; |
c7fc522f | 1541 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1542 | return PerlSIO_fseek(stdio,offset,whence); |
9e353e3b NIS |
1543 | } |
1544 | ||
1545 | Off_t | |
1546 | PerlIOStdio_tell(PerlIO *f) | |
1547 | { | |
adb71456 | 1548 | dTHX; |
c7fc522f | 1549 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1550 | return PerlSIO_ftell(stdio); |
9e353e3b NIS |
1551 | } |
1552 | ||
1553 | IV | |
1554 | PerlIOStdio_close(PerlIO *f) | |
1555 | { | |
adb71456 | 1556 | dTHX; |
8e4bc33b | 1557 | #ifdef HAS_SOCKET |
cf829ab0 | 1558 | int optval, optlen = sizeof(int); |
8e4bc33b | 1559 | #endif |
3789aae2 | 1560 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 | 1561 | return( |
8e4bc33b | 1562 | #ifdef HAS_SOCKET |
a4d3c1d3 | 1563 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ? |
eaf8b698 | 1564 | PerlSIO_fclose(stdio) : |
8e4bc33b YST |
1565 | close(PerlIO_fileno(f)) |
1566 | #else | |
1567 | PerlSIO_fclose(stdio) | |
1568 | #endif | |
1569 | ); | |
1570 | ||
9e353e3b NIS |
1571 | } |
1572 | ||
1573 | IV | |
1574 | PerlIOStdio_flush(PerlIO *f) | |
1575 | { | |
adb71456 | 1576 | dTHX; |
9e353e3b | 1577 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 NIS |
1578 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
1579 | { | |
eaf8b698 | 1580 | return PerlSIO_fflush(stdio); |
88b61e10 NIS |
1581 | } |
1582 | else | |
1583 | { | |
1584 | #if 0 | |
1585 | /* FIXME: This discards ungetc() and pre-read stuff which is | |
1586 | not right if this is just a "sync" from a layer above | |
1587 | Suspect right design is to do _this_ but not have layer above | |
1588 | flush this layer read-to-read | |
1589 | */ | |
1590 | /* Not writeable - sync by attempting a seek */ | |
1591 | int err = errno; | |
eaf8b698 | 1592 | if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
88b61e10 NIS |
1593 | errno = err; |
1594 | #endif | |
1595 | } | |
1596 | return 0; | |
9e353e3b NIS |
1597 | } |
1598 | ||
1599 | IV | |
06da4f11 NIS |
1600 | PerlIOStdio_fill(PerlIO *f) |
1601 | { | |
adb71456 | 1602 | dTHX; |
06da4f11 NIS |
1603 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1604 | int c; | |
3789aae2 NIS |
1605 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
1606 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
1607 | { | |
eaf8b698 | 1608 | if (PerlSIO_fflush(stdio) != 0) |
3789aae2 NIS |
1609 | return EOF; |
1610 | } | |
eaf8b698 NIS |
1611 | c = PerlSIO_fgetc(stdio); |
1612 | if (c == EOF || PerlSIO_ungetc(c,stdio) != c) | |
06da4f11 NIS |
1613 | return EOF; |
1614 | return 0; | |
1615 | } | |
1616 | ||
1617 | IV | |
9e353e3b NIS |
1618 | PerlIOStdio_eof(PerlIO *f) |
1619 | { | |
adb71456 | 1620 | dTHX; |
eaf8b698 | 1621 | return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1622 | } |
1623 | ||
1624 | IV | |
1625 | PerlIOStdio_error(PerlIO *f) | |
1626 | { | |
adb71456 | 1627 | dTHX; |
eaf8b698 | 1628 | return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1629 | } |
1630 | ||
1631 | void | |
1632 | PerlIOStdio_clearerr(PerlIO *f) | |
1633 | { | |
adb71456 | 1634 | dTHX; |
eaf8b698 | 1635 | PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b NIS |
1636 | } |
1637 | ||
1638 | void | |
1639 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1640 | { | |
adb71456 | 1641 | dTHX; |
9e353e3b | 1642 | #ifdef HAS_SETLINEBUF |
eaf8b698 | 1643 | PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b | 1644 | #else |
eaf8b698 | 1645 | PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b NIS |
1646 | #endif |
1647 | } | |
1648 | ||
1649 | #ifdef FILE_base | |
1650 | STDCHAR * | |
1651 | PerlIOStdio_get_base(PerlIO *f) | |
1652 | { | |
adb71456 | 1653 | dTHX; |
9e353e3b | 1654 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1655 | return PerlSIO_get_base(stdio); |
9e353e3b NIS |
1656 | } |
1657 | ||
1658 | Size_t | |
1659 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1660 | { | |
adb71456 | 1661 | dTHX; |
9e353e3b | 1662 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1663 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b NIS |
1664 | } |
1665 | #endif | |
1666 | ||
1667 | #ifdef USE_STDIO_PTR | |
1668 | STDCHAR * | |
1669 | PerlIOStdio_get_ptr(PerlIO *f) | |
1670 | { | |
adb71456 | 1671 | dTHX; |
9e353e3b | 1672 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1673 | return PerlSIO_get_ptr(stdio); |
9e353e3b NIS |
1674 | } |
1675 | ||
1676 | SSize_t | |
1677 | PerlIOStdio_get_cnt(PerlIO *f) | |
1678 | { | |
adb71456 | 1679 | dTHX; |
9e353e3b | 1680 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 | 1681 | return PerlSIO_get_cnt(stdio); |
9e353e3b NIS |
1682 | } |
1683 | ||
1684 | void | |
1685 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1686 | { | |
adb71456 | 1687 | dTHX; |
9e353e3b NIS |
1688 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1689 | if (ptr != NULL) | |
1690 | { | |
1691 | #ifdef STDIO_PTR_LVALUE | |
eaf8b698 | 1692 | PerlSIO_set_ptr(stdio,ptr); |
9e353e3b | 1693 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
eaf8b698 | 1694 | if (PerlSIO_get_cnt(stdio) != (cnt)) |
9e353e3b NIS |
1695 | { |
1696 | dTHX; | |
eaf8b698 | 1697 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
9e353e3b NIS |
1698 | } |
1699 | #endif | |
1700 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1701 | /* Setting ptr _does_ change cnt - we are done */ | |
1702 | return; | |
1703 | #endif | |
1704 | #else /* STDIO_PTR_LVALUE */ | |
eaf8b698 | 1705 | PerlProc_abort(); |
9e353e3b NIS |
1706 | #endif /* STDIO_PTR_LVALUE */ |
1707 | } | |
1708 | /* Now (or only) set cnt */ | |
1709 | #ifdef STDIO_CNT_LVALUE | |
eaf8b698 | 1710 | PerlSIO_set_cnt(stdio,cnt); |
9e353e3b NIS |
1711 | #else /* STDIO_CNT_LVALUE */ |
1712 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
eaf8b698 | 1713 | PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt)); |
9e353e3b | 1714 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
eaf8b698 | 1715 | PerlProc_abort(); |
9e353e3b NIS |
1716 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
1717 | #endif /* STDIO_CNT_LVALUE */ | |
1718 | } | |
1719 | ||
1720 | #endif | |
1721 | ||
1722 | PerlIO_funcs PerlIO_stdio = { | |
1723 | "stdio", | |
1724 | sizeof(PerlIOStdio), | |
f5b9d040 | 1725 | PERLIO_K_BUFFERED, |
9e353e3b NIS |
1726 | PerlIOStdio_fileno, |
1727 | PerlIOStdio_fdopen, | |
1728 | PerlIOStdio_open, | |
1729 | PerlIOStdio_reopen, | |
06da4f11 NIS |
1730 | PerlIOBase_pushed, |
1731 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1732 | PerlIOStdio_read, |
1733 | PerlIOStdio_unread, | |
1734 | PerlIOStdio_write, | |
1735 | PerlIOStdio_seek, | |
1736 | PerlIOStdio_tell, | |
1737 | PerlIOStdio_close, | |
1738 | PerlIOStdio_flush, | |
06da4f11 | 1739 | PerlIOStdio_fill, |
9e353e3b NIS |
1740 | PerlIOStdio_eof, |
1741 | PerlIOStdio_error, | |
1742 | PerlIOStdio_clearerr, | |
1743 | PerlIOStdio_setlinebuf, | |
1744 | #ifdef FILE_base | |
1745 | PerlIOStdio_get_base, | |
1746 | PerlIOStdio_get_bufsiz, | |
1747 | #else | |
1748 | NULL, | |
1749 | NULL, | |
1750 | #endif | |
1751 | #ifdef USE_STDIO_PTR | |
1752 | PerlIOStdio_get_ptr, | |
1753 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 1754 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
1755 | PerlIOStdio_set_ptrcnt |
1756 | #else /* STDIO_PTR_LVALUE */ | |
1757 | NULL | |
1758 | #endif /* STDIO_PTR_LVALUE */ | |
1759 | #else /* USE_STDIO_PTR */ | |
1760 | NULL, | |
1761 | NULL, | |
1762 | NULL | |
1763 | #endif /* USE_STDIO_PTR */ | |
1764 | }; | |
1765 | ||
1766 | #undef PerlIO_exportFILE | |
1767 | FILE * | |
1768 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1769 | { | |
1770 | PerlIO_flush(f); | |
1771 | /* Should really push stdio discipline when we have them */ | |
1772 | return fdopen(PerlIO_fileno(f),"r+"); | |
1773 | } | |
1774 | ||
1775 | #undef PerlIO_findFILE | |
1776 | FILE * | |
1777 | PerlIO_findFILE(PerlIO *f) | |
1778 | { | |
1779 | return PerlIO_exportFILE(f,0); | |
1780 | } | |
1781 | ||
1782 | #undef PerlIO_releaseFILE | |
1783 | void | |
1784 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1785 | { | |
1786 | } | |
1787 | ||
1788 | /*--------------------------------------------------------------------------------------*/ | |
1789 | /* perlio buffer layer */ | |
1790 | ||
5e2ab84b | 1791 | IV |
33af2bc7 | 1792 | PerlIOBuf_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) |
5e2ab84b NIS |
1793 | { |
1794 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1795 | b->posn = PerlIO_tell(PerlIONext(f)); | |
33af2bc7 | 1796 | return PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b NIS |
1797 | } |
1798 | ||
9e353e3b | 1799 | PerlIO * |
06da4f11 | 1800 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b | 1801 | { |
adb71456 | 1802 | dTHX; |
9e353e3b | 1803 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f NIS |
1804 | int init = 0; |
1805 | PerlIO *f; | |
1806 | if (*mode == 'I') | |
1807 | { | |
1808 | init = 1; | |
1809 | mode++; | |
a77df51f | 1810 | } |
10cbe18a | 1811 | #if O_BINARY != O_TEXT |
a4d3c1d3 NIS |
1812 | /* do something about failing setmode()? --jhi */ |
1813 | PerlLIO_setmode(fd, O_BINARY); | |
10cbe18a | 1814 | #endif |
06da4f11 | 1815 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 NIS |
1816 | if (f) |
1817 | { | |
33af2bc7 | 1818 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode,Nullch,0),PerlIOBuf); |
f5b9d040 | 1819 | if (init && fd == 2) |
c7fc522f | 1820 | { |
f5b9d040 NIS |
1821 | /* Initial stderr is unbuffered */ |
1822 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
a4d3c1d3 | 1823 | } |
5e2ab84b | 1824 | #if 0 |
4659c93f | 1825 | PerlIO_debug("PerlIOBuf_fdopen %s f=%p fd=%d m=%s fl=%08"UVxf"\n", |
f5b9d040 | 1826 | self->name,f,fd,mode,PerlIOBase(f)->flags); |
5e2ab84b | 1827 | #endif |
6f9d8c32 | 1828 | } |
9e353e3b | 1829 | return f; |
760ac839 LW |
1830 | } |
1831 | ||
9e353e3b | 1832 | PerlIO * |
06da4f11 | 1833 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 | 1834 | { |
9e353e3b | 1835 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 | 1836 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b NIS |
1837 | if (f) |
1838 | { | |
33af2bc7 | 1839 | PerlIO_push(f,self,mode,Nullch,0); |
9e353e3b NIS |
1840 | } |
1841 | return f; | |
1842 | } | |
1843 | ||
1844 | int | |
c3d7c7c9 | 1845 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b | 1846 | { |
c3d7c7c9 NIS |
1847 | PerlIO *next = PerlIONext(f); |
1848 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); | |
1849 | if (code = 0) | |
33af2bc7 | 1850 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode,Nullch,0); |
c3d7c7c9 | 1851 | return code; |
9e353e3b NIS |
1852 | } |
1853 | ||
9e353e3b NIS |
1854 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1855 | read or write state | |
1856 | */ | |
1857 | IV | |
1858 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1859 | { |
9e353e3b NIS |
1860 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1861 | int code = 0; | |
1862 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1863 | { | |
1864 | /* write() the buffer */ | |
a5262162 | 1865 | STDCHAR *buf = b->buf; |
33af2bc7 | 1866 | STDCHAR *p = buf; |
9e353e3b | 1867 | int count; |
3789aae2 | 1868 | PerlIO *n = PerlIONext(f); |
9e353e3b NIS |
1869 | while (p < b->ptr) |
1870 | { | |
3789aae2 | 1871 | count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b NIS |
1872 | if (count > 0) |
1873 | { | |
1874 | p += count; | |
1875 | } | |
3789aae2 | 1876 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b NIS |
1877 | { |
1878 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1879 | code = -1; | |
1880 | break; | |
1881 | } | |
1882 | } | |
33af2bc7 | 1883 | b->posn += (p - buf); |
9e353e3b NIS |
1884 | } |
1885 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1886 | { |
33af2bc7 | 1887 | STDCHAR *buf = PerlIO_get_base(f); |
9e353e3b | 1888 | /* Note position change */ |
33af2bc7 | 1889 | b->posn += (b->ptr - buf); |
9e353e3b NIS |
1890 | if (b->ptr < b->end) |
1891 | { | |
1892 | /* We did not consume all of it */ | |
1893 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1894 | { | |
1895 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1896 | } | |
1897 | } | |
6f9d8c32 | 1898 | } |
9e353e3b NIS |
1899 | b->ptr = b->end = b->buf; |
1900 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
88b61e10 | 1901 | /* FIXME: Is this right for read case ? */ |
9e353e3b NIS |
1902 | if (PerlIO_flush(PerlIONext(f)) != 0) |
1903 | code = -1; | |
1904 | return code; | |
6f9d8c32 NIS |
1905 | } |
1906 | ||
06da4f11 NIS |
1907 | IV |
1908 | PerlIOBuf_fill(PerlIO *f) | |
1909 | { | |
1910 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
88b61e10 | 1911 | PerlIO *n = PerlIONext(f); |
06da4f11 | 1912 | SSize_t avail; |
88b61e10 NIS |
1913 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
1914 | pre-read data in stdio buffer to be discarded | |
1915 | but this is too simplistic - as it skips _our_ hosekeeping | |
1916 | and breaks tell tests. | |
1917 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
1918 | { | |
1919 | } | |
1920 | */ | |
06da4f11 NIS |
1921 | if (PerlIO_flush(f) != 0) |
1922 | return -1; | |
88b61e10 | 1923 | |
a5262162 NIS |
1924 | if (!b->buf) |
1925 | PerlIO_get_base(f); /* allocate via vtable */ | |
1926 | ||
1927 | b->ptr = b->end = b->buf; | |
88b61e10 NIS |
1928 | if (PerlIO_fast_gets(n)) |
1929 | { | |
1930 | /* Layer below is also buffered | |
1931 | * We do _NOT_ want to call its ->Read() because that will loop | |
1932 | * till it gets what we asked for which may hang on a pipe etc. | |
1933 | * Instead take anything it has to hand, or ask it to fill _once_. | |
1934 | */ | |
1935 | avail = PerlIO_get_cnt(n); | |
1936 | if (avail <= 0) | |
1937 | { | |
1938 | avail = PerlIO_fill(n); | |
1939 | if (avail == 0) | |
1940 | avail = PerlIO_get_cnt(n); | |
1941 | else | |
1942 | { | |
1943 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
1944 | avail = 0; | |
1945 | } | |
1946 | } | |
1947 | if (avail > 0) | |
1948 | { | |
1949 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
1950 | SSize_t cnt = avail; | |
1951 | if (avail > b->bufsiz) | |
1952 | avail = b->bufsiz; | |
1953 | Copy(ptr,b->buf,avail,STDCHAR); | |
1954 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); | |
1955 | } | |
1956 | } | |
1957 | else | |
1958 | { | |
1959 | avail = PerlIO_read(n,b->ptr,b->bufsiz); | |
1960 | } | |
06da4f11 NIS |
1961 | if (avail <= 0) |
1962 | { | |
1963 | if (avail == 0) | |
1964 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1965 | else | |
1966 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1967 | return -1; | |
1968 | } | |
a5262162 | 1969 | b->end = b->buf+avail; |
06da4f11 NIS |
1970 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
1971 | return 0; | |
1972 | } | |
1973 | ||
6f9d8c32 | 1974 | SSize_t |
9e353e3b | 1975 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1976 | { |
99efab12 NIS |
1977 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1978 | STDCHAR *buf = (STDCHAR *) vbuf; | |
6f9d8c32 NIS |
1979 | if (f) |
1980 | { | |
9e353e3b | 1981 | if (!b->ptr) |
06da4f11 | 1982 | PerlIO_get_base(f); |
9e353e3b | 1983 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf | 1984 | return 0; |
6f9d8c32 NIS |
1985 | while (count > 0) |
1986 | { | |
99efab12 | 1987 | SSize_t avail = PerlIO_get_cnt(f); |
60382766 | 1988 | SSize_t take = (count < avail) ? count : avail; |
99efab12 | 1989 | if (take > 0) |
6f9d8c32 | 1990 | { |
99efab12 NIS |
1991 | STDCHAR *ptr = PerlIO_get_ptr(f); |
1992 | Copy(ptr,buf,take,STDCHAR); | |
1993 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); | |
1994 | count -= take; | |
1995 | buf += take; | |
6f9d8c32 | 1996 | } |
99efab12 | 1997 | if (count > 0 && avail <= 0) |
6f9d8c32 | 1998 | { |
06da4f11 NIS |
1999 | if (PerlIO_fill(f) != 0) |
2000 | break; | |
6f9d8c32 NIS |
2001 | } |
2002 | } | |
99efab12 | 2003 | return (buf - (STDCHAR *) vbuf); |
6f9d8c32 NIS |
2004 | } |
2005 | return 0; | |
2006 | } | |
2007 | ||
9e353e3b NIS |
2008 | SSize_t |
2009 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2010 | { |
9e353e3b NIS |
2011 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2012 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2013 | SSize_t unread = 0; | |
2014 | SSize_t avail; | |
9e353e3b NIS |
2015 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2016 | PerlIO_flush(f); | |
06da4f11 NIS |
2017 | if (!b->buf) |
2018 | PerlIO_get_base(f); | |
9e353e3b NIS |
2019 | if (b->buf) |
2020 | { | |
2021 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2022 | { | |
2023 | avail = (b->ptr - b->buf); | |
9e353e3b NIS |
2024 | } |
2025 | else | |
2026 | { | |
2027 | avail = b->bufsiz; | |
5e2ab84b NIS |
2028 | b->end = b->buf + avail; |
2029 | b->ptr = b->end; | |
2030 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2031 | b->posn -= b->bufsiz; | |
9e353e3b | 2032 | } |
5e2ab84b NIS |
2033 | if (avail > (SSize_t) count) |
2034 | avail = count; | |
9e353e3b NIS |
2035 | if (avail > 0) |
2036 | { | |
5e2ab84b | 2037 | b->ptr -= avail; |
9e353e3b NIS |
2038 | buf -= avail; |
2039 | if (buf != b->ptr) | |
2040 | { | |
88b61e10 | 2041 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2042 | } |
2043 | count -= avail; | |
2044 | unread += avail; | |
2045 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
2046 | } | |
2047 | } | |
2048 | return unread; | |
760ac839 LW |
2049 | } |
2050 | ||
9e353e3b NIS |
2051 | SSize_t |
2052 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 2053 | { |
9e353e3b NIS |
2054 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2055 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
2056 | Size_t written = 0; | |
2057 | if (!b->buf) | |
06da4f11 | 2058 | PerlIO_get_base(f); |
9e353e3b NIS |
2059 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2060 | return 0; | |
2061 | while (count > 0) | |
2062 | { | |
2063 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
2064 | if ((SSize_t) count < avail) | |
2065 | avail = count; | |
2066 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2067 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2068 | { | |
2069 | while (avail > 0) | |
2070 | { | |
2071 | int ch = *buf++; | |
2072 | *(b->ptr)++ = ch; | |
2073 | count--; | |
2074 | avail--; | |
2075 | written++; | |
2076 | if (ch == '\n') | |
2077 | { | |
2078 | PerlIO_flush(f); | |
2079 | break; | |
2080 | } | |
2081 | } | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | if (avail) | |
2086 | { | |
88b61e10 | 2087 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b NIS |
2088 | count -= avail; |
2089 | buf += avail; | |
2090 | written += avail; | |
2091 | b->ptr += avail; | |
2092 | } | |
2093 | } | |
2094 | if (b->ptr >= (b->buf + b->bufsiz)) | |
2095 | PerlIO_flush(f); | |
2096 | } | |
f5b9d040 NIS |
2097 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2098 | PerlIO_flush(f); | |
9e353e3b NIS |
2099 | return written; |
2100 | } | |
2101 | ||
2102 | IV | |
2103 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
2104 | { | |
5e2ab84b NIS |
2105 | IV code; |
2106 | if ((code = PerlIO_flush(f)) == 0) | |
9e353e3b | 2107 | { |
5e2ab84b | 2108 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
9e353e3b NIS |
2109 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2110 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
2111 | if (code == 0) | |
2112 | { | |
2113 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2114 | } | |
2115 | } | |
2116 | return code; | |
2117 | } | |
2118 | ||
2119 | Off_t | |
2120 | PerlIOBuf_tell(PerlIO *f) | |
2121 | { | |
2122 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2123 | Off_t posn = b->posn; | |
2124 | if (b->buf) | |
2125 | posn += (b->ptr - b->buf); | |
2126 | return posn; | |
2127 | } | |
2128 | ||
2129 | IV | |
2130 | PerlIOBuf_close(PerlIO *f) | |
2131 | { | |
5f1a76d0 | 2132 | dTHX; |
9e353e3b NIS |
2133 | IV code = PerlIOBase_close(f); |
2134 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2135 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 2136 | { |
5f1a76d0 | 2137 | PerlMemShared_free(b->buf); |
6f9d8c32 | 2138 | } |
9e353e3b NIS |
2139 | b->buf = NULL; |
2140 | b->ptr = b->end = b->buf; | |
2141 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2142 | return code; | |
760ac839 LW |
2143 | } |
2144 | ||
760ac839 | 2145 | void |
9e353e3b | 2146 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 2147 | { |
6f9d8c32 NIS |
2148 | if (f) |
2149 | { | |
9e353e3b | 2150 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 2151 | } |
760ac839 LW |
2152 | } |
2153 | ||
9e353e3b NIS |
2154 | STDCHAR * |
2155 | PerlIOBuf_get_ptr(PerlIO *f) | |
2156 | { | |
2157 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2158 | if (!b->buf) | |
06da4f11 | 2159 | PerlIO_get_base(f); |
9e353e3b NIS |
2160 | return b->ptr; |
2161 | } | |
2162 | ||
05d1247b | 2163 | SSize_t |
9e353e3b NIS |
2164 | PerlIOBuf_get_cnt(PerlIO *f) |
2165 | { | |
2166 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2167 | if (!b->buf) | |
06da4f11 | 2168 | PerlIO_get_base(f); |
9e353e3b NIS |
2169 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2170 | return (b->end - b->ptr); | |
2171 | return 0; | |
2172 | } | |
2173 | ||
2174 | STDCHAR * | |
2175 | PerlIOBuf_get_base(PerlIO *f) | |
2176 | { | |
2177 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2178 | if (!b->buf) | |
06da4f11 | 2179 | { |
5f1a76d0 | 2180 | dTHX; |
06da4f11 NIS |
2181 | if (!b->bufsiz) |
2182 | b->bufsiz = 4096; | |
5f1a76d0 | 2183 | b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR)); |
06da4f11 NIS |
2184 | if (!b->buf) |
2185 | { | |
2186 | b->buf = (STDCHAR *)&b->oneword; | |
2187 | b->bufsiz = sizeof(b->oneword); | |
2188 | } | |
2189 | b->ptr = b->buf; | |
2190 | b->end = b->ptr; | |
2191 | } | |
9e353e3b NIS |
2192 | return b->buf; |
2193 | } | |
2194 | ||
2195 | Size_t | |
2196 | PerlIOBuf_bufsiz(PerlIO *f) | |
2197 | { | |
2198 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2199 | if (!b->buf) | |
06da4f11 | 2200 | PerlIO_get_base(f); |
9e353e3b NIS |
2201 | return (b->end - b->buf); |
2202 | } | |
2203 | ||
2204 | void | |
05d1247b | 2205 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
2206 | { |
2207 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2208 | if (!b->buf) | |
06da4f11 | 2209 | PerlIO_get_base(f); |
9e353e3b NIS |
2210 | b->ptr = ptr; |
2211 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 2212 | { |
9e353e3b NIS |
2213 | dTHX; |
2214 | assert(PerlIO_get_cnt(f) == cnt); | |
2215 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 2216 | } |
9e353e3b | 2217 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
2218 | } |
2219 | ||
9e353e3b NIS |
2220 | PerlIO_funcs PerlIO_perlio = { |
2221 | "perlio", | |
2222 | sizeof(PerlIOBuf), | |
f5b9d040 | 2223 | PERLIO_K_BUFFERED, |
9e353e3b NIS |
2224 | PerlIOBase_fileno, |
2225 | PerlIOBuf_fdopen, | |
2226 | PerlIOBuf_open, | |
c3d7c7c9 | 2227 | PerlIOBuf_reopen, |
5e2ab84b | 2228 | PerlIOBuf_pushed, |
06da4f11 | 2229 | PerlIOBase_noop_ok, |
9e353e3b NIS |
2230 | PerlIOBuf_read, |
2231 | PerlIOBuf_unread, | |
2232 | PerlIOBuf_write, | |
2233 | PerlIOBuf_seek, | |
2234 | PerlIOBuf_tell, | |
2235 | PerlIOBuf_close, | |
2236 | PerlIOBuf_flush, | |
06da4f11 | 2237 | PerlIOBuf_fill, |
9e353e3b NIS |
2238 | PerlIOBase_eof, |
2239 | PerlIOBase_error, | |
2240 | PerlIOBase_clearerr, | |
2241 | PerlIOBuf_setlinebuf, | |
2242 | PerlIOBuf_get_base, | |
2243 | PerlIOBuf_bufsiz, | |
2244 | PerlIOBuf_get_ptr, | |
2245 | PerlIOBuf_get_cnt, | |
2246 | PerlIOBuf_set_ptrcnt, | |
2247 | }; | |
2248 | ||
66ecd56b | 2249 | /*--------------------------------------------------------------------------------------*/ |
5e2ab84b NIS |
2250 | /* Temp layer to hold unread chars when cannot do it any other way */ |
2251 | ||
2252 | IV | |
2253 | PerlIOPending_fill(PerlIO *f) | |
2254 | { | |
2255 | /* Should never happen */ | |
2256 | PerlIO_flush(f); | |
2257 | return 0; | |
2258 | } | |
2259 | ||
2260 | IV | |
2261 | PerlIOPending_close(PerlIO *f) | |
2262 | { | |
2263 | /* A tad tricky - flush pops us, then we close new top */ | |
2264 | PerlIO_flush(f); | |
2265 | return PerlIO_close(f); | |
2266 | } | |
2267 | ||
2268 | IV | |
2269 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) | |
2270 | { | |
2271 | /* A tad tricky - flush pops us, then we seek new top */ | |
2272 | PerlIO_flush(f); | |
2273 | return PerlIO_seek(f,offset,whence); | |
2274 | } | |
2275 | ||
2276 | ||
2277 | IV | |
2278 | PerlIOPending_flush(PerlIO *f) | |
2279 | { | |
2280 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2281 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
2282 | { | |
5f1a76d0 NIS |
2283 | dTHX; |
2284 | PerlMemShared_free(b->buf); | |
5e2ab84b NIS |
2285 | b->buf = NULL; |
2286 | } | |
2287 | PerlIO_pop(f); | |
2288 | return 0; | |
2289 | } | |
2290 | ||
2291 | void | |
2292 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
2293 | { | |
2294 | if (cnt <= 0) | |
2295 | { | |
2296 | PerlIO_flush(f); | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | PerlIOBuf_set_ptrcnt(f,ptr,cnt); | |
2301 | } | |
2302 | } | |
2303 | ||
2304 | IV | |
33af2bc7 | 2305 | PerlIOPending_pushed(PerlIO *f,const char *mode,const char *arg,STRLEN len) |
5e2ab84b | 2306 | { |
72e44f29 | 2307 | IV code = PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b NIS |
2308 | PerlIOl *l = PerlIOBase(f); |
2309 | /* Our PerlIO_fast_gets must match what we are pushed on, | |
2310 | or sv_gets() etc. get muddled when it changes mid-string | |
2311 | when we auto-pop. | |
2312 | */ | |
72e44f29 NIS |
2313 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) | |
2314 | (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8)); | |
5e2ab84b NIS |
2315 | return code; |
2316 | } | |
2317 | ||
2318 | SSize_t | |
2319 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) | |
2320 | { | |
2321 | SSize_t avail = PerlIO_get_cnt(f); | |
2322 | SSize_t got = 0; | |
2323 | if (count < avail) | |
2324 | avail = count; | |
2325 | if (avail > 0) | |
2326 | got = PerlIOBuf_read(f,vbuf,avail); | |
2327 | if (got < count) | |
2328 | got += PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got); | |
2329 | return got; | |
2330 | } | |
2331 | ||
2332 | ||
2333 | PerlIO_funcs PerlIO_pending = { | |
2334 | "pending", | |
2335 | sizeof(PerlIOBuf), | |
2336 | PERLIO_K_BUFFERED, | |
2337 | PerlIOBase_fileno, | |
2338 | NULL, | |
2339 | NULL, | |
2340 | NULL, | |
2341 | PerlIOPending_pushed, | |
2342 | PerlIOBase_noop_ok, | |
2343 | PerlIOPending_read, | |
2344 | PerlIOBuf_unread, | |
2345 | PerlIOBuf_write, | |
2346 | PerlIOPending_seek, | |
2347 | PerlIOBuf_tell, | |
2348 | PerlIOPending_close, | |
2349 | PerlIOPending_flush, | |
2350 | PerlIOPending_fill, | |
2351 | PerlIOBase_eof, | |
2352 | PerlIOBase_error, | |
2353 | PerlIOBase_clearerr, | |
2354 | PerlIOBuf_setlinebuf, | |
2355 | PerlIOBuf_get_base, | |
2356 | PerlIOBuf_bufsiz, | |
2357 | PerlIOBuf_get_ptr, | |
2358 | PerlIOBuf_get_cnt, | |
2359 | PerlIOPending_set_ptrcnt, | |
2360 | }; | |
2361 | ||
2362 | ||
2363 | ||
2364 | /*--------------------------------------------------------------------------------------*/ | |
99efab12 NIS |
2365 | /* crlf - translation |
2366 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries | |
60382766 | 2367 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 | 2368 | On write translate "\n" to CR,LF |
66ecd56b NIS |
2369 | */ |
2370 | ||
99efab12 NIS |
2371 | typedef struct |
2372 | { | |
2373 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
60382766 | 2374 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 NIS |
2375 | } PerlIOCrlf; |
2376 | ||
f5b9d040 | 2377 | IV |
33af2bc7 | 2378 | PerlIOCrlf_pushed(PerlIO *f, const char *mode,const char *arg,STRLEN len) |
f5b9d040 NIS |
2379 | { |
2380 | IV code; | |
2381 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
33af2bc7 | 2382 | code = PerlIOBuf_pushed(f,mode,arg,len); |
5e2ab84b | 2383 | #if 0 |
4659c93f | 2384 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n", |
f5b9d040 | 2385 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
a4d3c1d3 | 2386 | PerlIOBase(f)->flags); |
5e2ab84b | 2387 | #endif |
f5b9d040 NIS |
2388 | return code; |
2389 | } | |
2390 | ||
2391 | ||
99efab12 NIS |
2392 | SSize_t |
2393 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2394 | { | |
60382766 | 2395 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 NIS |
2396 | if (c->nl) |
2397 | { | |
2398 | *(c->nl) = 0xd; | |
2399 | c->nl = NULL; | |
2400 | } | |
f5b9d040 NIS |
2401 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2402 | return PerlIOBuf_unread(f,vbuf,count); | |
2403 | else | |
99efab12 | 2404 | { |
a4d3c1d3 | 2405 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
f5b9d040 NIS |
2406 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2407 | SSize_t unread = 0; | |
2408 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2409 | PerlIO_flush(f); | |
2410 | if (!b->buf) | |
2411 | PerlIO_get_base(f); | |
2412 | if (b->buf) | |
99efab12 | 2413 | { |
f5b9d040 | 2414 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 | 2415 | { |
f5b9d040 NIS |
2416 | b->end = b->ptr = b->buf + b->bufsiz; |
2417 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
5e2ab84b | 2418 | b->posn -= b->bufsiz; |
f5b9d040 NIS |
2419 | } |
2420 | while (count > 0 && b->ptr > b->buf) | |
2421 | { | |
2422 | int ch = *--buf; | |
2423 | if (ch == '\n') | |
99efab12 | 2424 | { |
f5b9d040 NIS |
2425 | if (b->ptr - 2 >= b->buf) |
2426 | { | |
2427 | *--(b->ptr) = 0xa; | |
2428 | *--(b->ptr) = 0xd; | |
2429 | unread++; | |
2430 | count--; | |
2431 | } | |
2432 | else | |
2433 | { | |
2434 | buf++; | |
2435 | break; | |
2436 | } | |
99efab12 NIS |
2437 | } |
2438 | else | |
2439 | { | |
f5b9d040 NIS |
2440 | *--(b->ptr) = ch; |
2441 | unread++; | |
2442 | count--; | |
99efab12 NIS |
2443 | } |
2444 | } | |
99efab12 | 2445 | } |
f5b9d040 | 2446 | return unread; |
99efab12 | 2447 | } |
99efab12 NIS |
2448 | } |
2449 | ||
2450 | SSize_t | |
2451 | PerlIOCrlf_get_cnt(PerlIO *f) | |
2452 | { | |
2453 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2454 | if (!b->buf) | |
2455 | PerlIO_get_base(f); | |
2456 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
2457 | { | |
2458 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 2459 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 NIS |
2460 | { |
2461 | STDCHAR *nl = b->ptr; | |
60382766 | 2462 | scan: |
99efab12 NIS |
2463 | while (nl < b->end && *nl != 0xd) |
2464 | nl++; | |
2465 | if (nl < b->end && *nl == 0xd) | |
2466 | { | |
60382766 | 2467 | test: |
99efab12 NIS |
2468 | if (nl+1 < b->end) |
2469 | { | |
2470 | if (nl[1] == 0xa) | |
2471 | { | |
2472 | *nl = '\n'; | |
60382766 | 2473 | c->nl = nl; |
99efab12 | 2474 | } |
60382766 | 2475 | else |
99efab12 NIS |
2476 | { |
2477 | /* Not CR,LF but just CR */ | |
2478 | nl++; | |
60382766 | 2479 | goto scan; |
99efab12 NIS |
2480 | } |
2481 | } | |
2482 | else | |
2483 | { | |
60382766 | 2484 | /* Blast - found CR as last char in buffer */ |
99efab12 NIS |
2485 | if (b->ptr < nl) |
2486 | { | |
2487 | /* They may not care, defer work as long as possible */ | |
60382766 | 2488 | return (nl - b->ptr); |
99efab12 NIS |
2489 | } |
2490 | else | |
2491 | { | |
2492 | int code; | |
2493 | dTHX; | |
99efab12 NIS |
2494 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
2495 | b->buf++; /* Leave space an front of buffer */ | |
2496 | b->bufsiz--; /* Buffer is thus smaller */ | |
2497 | code = PerlIO_fill(f); /* Fetch some more */ | |
2498 | b->bufsiz++; /* Restore size for next time */ | |
2499 | b->buf--; /* Point at space */ | |
2500 | b->ptr = nl = b->buf; /* Which is what we hand off */ | |
2501 | b->posn--; /* Buffer starts here */ | |
2502 | *nl = 0xd; /* Fill in the CR */ | |
60382766 | 2503 | if (code == 0) |
99efab12 NIS |
2504 | goto test; /* fill() call worked */ |
2505 | /* CR at EOF - just fall through */ | |
2506 | } | |
2507 | } | |
60382766 NIS |
2508 | } |
2509 | } | |
99efab12 NIS |
2510 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
2511 | } | |
2512 | return 0; | |
2513 | } | |
2514 | ||
2515 | void | |
2516 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
2517 | { | |
2518 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2519 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
f5b9d040 | 2520 | IV flags = PerlIOBase(f)->flags; |
99efab12 NIS |
2521 | if (!b->buf) |
2522 | PerlIO_get_base(f); | |
2523 | if (!ptr) | |
60382766 | 2524 | { |
63dbdb06 NIS |
2525 | if (c->nl) |
2526 | ptr = c->nl+1; | |
2527 | else | |
2528 | { | |
2529 | ptr = b->end; | |
f5b9d040 | 2530 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 NIS |
2531 | ptr--; |
2532 | } | |
2533 | ptr -= cnt; | |
60382766 NIS |
2534 | } |
2535 | else | |
2536 | { | |
63dbdb06 NIS |
2537 | /* Test code - delete when it works ... */ |
2538 | STDCHAR *chk; | |
2539 | if (c->nl) | |
2540 | chk = c->nl+1; | |
2541 | else | |
2542 | { | |
2543 | chk = b->end; | |
f5b9d040 | 2544 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 NIS |
2545 | chk--; |
2546 | } | |
2547 | chk -= cnt; | |
a4d3c1d3 | 2548 | |
63dbdb06 NIS |
2549 | if (ptr != chk) |
2550 | { | |
2551 | dTHX; | |
4659c93f | 2552 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d", |
a4d3c1d3 | 2553 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 | 2554 | } |
60382766 | 2555 | } |
99efab12 NIS |
2556 | if (c->nl) |
2557 | { | |
2558 | if (ptr > c->nl) | |
2559 | { | |
2560 | /* They have taken what we lied about */ | |
2561 | *(c->nl) = 0xd; | |
2562 | c->nl = NULL; | |
2563 | ptr++; | |
60382766 | 2564 | } |
99efab12 NIS |
2565 | } |
2566 | b->ptr = ptr; | |
2567 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
2568 | } | |
2569 | ||
2570 | SSize_t | |
2571 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) | |
2572 | { | |
f5b9d040 NIS |
2573 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2574 | return PerlIOBuf_write(f,vbuf,count); | |
2575 | else | |
99efab12 | 2576 | { |
a4d3c1d3 | 2577 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
f5b9d040 NIS |
2578 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
2579 | const STDCHAR *ebuf = buf+count; | |
2580 | if (!b->buf) | |
2581 | PerlIO_get_base(f); | |
2582 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
2583 | return 0; | |
2584 | while (buf < ebuf) | |
99efab12 | 2585 | { |
f5b9d040 NIS |
2586 | STDCHAR *eptr = b->buf+b->bufsiz; |
2587 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
2588 | while (buf < ebuf && b->ptr < eptr) | |
99efab12 | 2589 | { |
f5b9d040 | 2590 | if (*buf == '\n') |
60382766 | 2591 | { |
f5b9d040 | 2592 | if ((b->ptr + 2) > eptr) |
60382766 | 2593 | { |
f5b9d040 | 2594 | /* Not room for both */ |
60382766 NIS |
2595 | PerlIO_flush(f); |
2596 | break; | |
2597 | } | |
f5b9d040 NIS |
2598 | else |
2599 | { | |
2600 | *(b->ptr)++ = 0xd; /* CR */ | |
2601 | *(b->ptr)++ = 0xa; /* LF */ | |
2602 | buf++; | |
2603 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
2604 | { | |
2605 | PerlIO_flush(f); | |
2606 | break; | |
2607 | } | |
2608 | } | |
2609 | } | |
2610 | else | |
2611 | { | |
2612 | int ch = *buf++; | |
2613 | *(b->ptr)++ = ch; | |
2614 | } | |
2615 | if (b->ptr >= eptr) | |
2616 | { | |
2617 | PerlIO_flush(f); | |
2618 | break; | |
99efab12 | 2619 | } |
99efab12 NIS |
2620 | } |
2621 | } | |
f5b9d040 NIS |
2622 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2623 | PerlIO_flush(f); | |
2624 | return (buf - (STDCHAR *) vbuf); | |
99efab12 | 2625 | } |
99efab12 NIS |
2626 | } |
2627 | ||
2628 | IV | |
2629 | PerlIOCrlf_flush(PerlIO *f) | |
2630 | { | |
2631 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); | |
2632 | if (c->nl) | |
2633 | { | |
99efab12 | 2634 | *(c->nl) = 0xd; |
60382766 | 2635 | c->nl = NULL; |
99efab12 NIS |
2636 | } |
2637 | return PerlIOBuf_flush(f); | |
2638 | } | |
2639 | ||
66ecd56b NIS |
2640 | PerlIO_funcs PerlIO_crlf = { |
2641 | "crlf", | |
99efab12 | 2642 | sizeof(PerlIOCrlf), |
f5b9d040 | 2643 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
66ecd56b NIS |
2644 | PerlIOBase_fileno, |
2645 | PerlIOBuf_fdopen, | |
2646 | PerlIOBuf_open, | |
2647 | PerlIOBuf_reopen, | |
f5b9d040 | 2648 | PerlIOCrlf_pushed, |
99efab12 NIS |
2649 | PerlIOBase_noop_ok, /* popped */ |
2650 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ | |
2651 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ | |
2652 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
66ecd56b NIS |
2653 | PerlIOBuf_seek, |
2654 | PerlIOBuf_tell, | |
2655 | PerlIOBuf_close, | |
99efab12 | 2656 | PerlIOCrlf_flush, |
66ecd56b NIS |
2657 | PerlIOBuf_fill, |
2658 | PerlIOBase_eof, | |
2659 | PerlIOBase_error, | |
2660 | PerlIOBase_clearerr, | |
2661 | PerlIOBuf_setlinebuf, | |
2662 | PerlIOBuf_get_base, | |
2663 | PerlIOBuf_bufsiz, | |
2664 | PerlIOBuf_get_ptr, | |
99efab12 NIS |
2665 | PerlIOCrlf_get_cnt, |
2666 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
2667 | }; |
2668 | ||
06da4f11 NIS |
2669 | #ifdef HAS_MMAP |
2670 | /*--------------------------------------------------------------------------------------*/ | |
2671 | /* mmap as "buffer" layer */ | |
2672 | ||
2673 | typedef struct | |
2674 | { | |
2675 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 2676 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
2677 | Size_t len; /* mapped length */ |
2678 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
2679 | } PerlIOMmap; | |
2680 | ||
c3d7c7c9 NIS |
2681 | static size_t page_size = 0; |
2682 | ||
06da4f11 NIS |
2683 | IV |
2684 | PerlIOMmap_map(PerlIO *f) | |
2685 | { | |
68d873c6 | 2686 | dTHX; |
06da4f11 NIS |
2687 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2688 | PerlIOBuf *b = &m->base; | |
2689 | IV flags = PerlIOBase(f)->flags; | |
2690 | IV code = 0; | |
2691 | if (m->len) | |
2692 | abort(); | |
2693 | if (flags & PERLIO_F_CANREAD) | |
2694 | { | |
2695 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2696 | int fd = PerlIO_fileno(f); | |
2697 | struct stat st; | |
2698 | code = fstat(fd,&st); | |
2699 | if (code == 0 && S_ISREG(st.st_mode)) | |
2700 | { | |
2701 | SSize_t len = st.st_size - b->posn; | |
2702 | if (len > 0) | |
2703 | { | |
c3d7c7c9 | 2704 | Off_t posn; |
68d873c6 JH |
2705 | if (!page_size) { |
2706 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
2707 | { | |
2708 | SETERRNO(0,SS$_NORMAL); | |
2709 | # ifdef _SC_PAGESIZE | |
2710 | page_size = sysconf(_SC_PAGESIZE); | |
2711 | # else | |
2712 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 2713 | # endif |
68d873c6 JH |
2714 | if ((long)page_size < 0) { |
2715 | if (errno) { | |
2716 | SV *error = ERRSV; | |
2717 | char *msg; | |
2718 | STRLEN n_a; | |
2719 | (void)SvUPGRADE(error, SVt_PV); | |
2720 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 2721 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
2722 | } |
2723 | else | |
14aaf8e8 | 2724 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
2725 | } |
2726 | } | |
2727 | #else | |
2728 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 2729 | page_size = getpagesize(); |
68d873c6 JH |
2730 | # else |
2731 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
2732 | page_size = PAGESIZE; /* compiletime, bad */ | |
2733 | # endif | |
2734 | # endif | |
2735 | #endif | |
2736 | if ((IV)page_size <= 0) | |
14aaf8e8 | 2737 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 2738 | } |
c3d7c7c9 NIS |
2739 | if (b->posn < 0) |
2740 | { | |
2741 | /* This is a hack - should never happen - open should have set it ! */ | |
2742 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2743 | } | |
2744 | posn = (b->posn / page_size) * page_size; | |
2745 | len = st.st_size - posn; | |
a5262162 | 2746 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); |
c3d7c7c9 | 2747 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 | 2748 | { |
a5262162 | 2749 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 | 2750 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 2751 | #endif |
a5262162 NIS |
2752 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
2753 | madvise(m->mptr, len, MADV_WILLNEED); | |
2754 | #endif | |
c3d7c7c9 NIS |
2755 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
2756 | b->end = ((STDCHAR *)m->mptr) + len; | |
2757 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
2758 | b->ptr = b->buf; | |
2759 | m->len = len; | |
06da4f11 NIS |
2760 | } |
2761 | else | |
2762 | { | |
2763 | b->buf = NULL; | |
2764 | } | |
2765 | } | |
2766 | else | |
2767 | { | |
2768 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
2769 | b->buf = NULL; | |
2770 | b->ptr = b->end = b->ptr; | |
2771 | code = -1; | |
2772 | } | |
2773 | } | |
2774 | } | |
2775 | return code; | |
2776 | } | |
2777 | ||
2778 | IV | |
2779 | PerlIOMmap_unmap(PerlIO *f) | |
2780 | { | |
2781 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2782 | PerlIOBuf *b = &m->base; | |
2783 | IV code = 0; | |
2784 | if (m->len) | |
2785 | { | |
2786 | if (b->buf) | |
2787 | { | |
c3d7c7c9 NIS |
2788 | code = munmap(m->mptr, m->len); |
2789 | b->buf = NULL; | |
2790 | m->len = 0; | |
2791 | m->mptr = NULL; | |
06da4f11 NIS |
2792 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
2793 | code = -1; | |
06da4f11 NIS |
2794 | } |
2795 | b->ptr = b->end = b->buf; | |
2796 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
2797 | } | |
2798 | return code; | |
2799 | } | |
2800 | ||
2801 | STDCHAR * | |
2802 | PerlIOMmap_get_base(PerlIO *f) | |
2803 | { | |
2804 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2805 | PerlIOBuf *b = &m->base; | |
2806 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2807 | { | |
2808 | /* Already have a readbuffer in progress */ | |
2809 | return b->buf; | |
2810 | } | |
2811 | if (b->buf) | |
2812 | { | |
2813 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
2814 | m->bbuf = b->buf; /* save it in case we need it again */ | |
2815 | b->buf = NULL; /* Clear to trigger below */ | |
2816 | } | |
2817 | if (!b->buf) | |
2818 | { | |
2819 | PerlIOMmap_map(f); /* Try and map it */ | |
2820 | if (!b->buf) | |
2821 | { | |
2822 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
2823 | b->buf = m->bbuf; | |
2824 | } | |
2825 | } | |
2826 | b->ptr = b->end = b->buf; | |
2827 | if (b->buf) | |
2828 | return b->buf; | |
2829 | return PerlIOBuf_get_base(f); | |
2830 | } | |
2831 | ||
2832 | SSize_t | |
2833 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2834 | { | |
2835 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2836 | PerlIOBuf *b = &m->base; | |
2837 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
2838 | PerlIO_flush(f); | |
2839 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
2840 | { | |
2841 | b->ptr -= count; | |
2842 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
2843 | return count; | |
2844 | } | |
2845 | if (m->len) | |
2846 | { | |
4a4a6116 | 2847 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 2848 | PerlIO_flush(f); |
c3d7c7c9 NIS |
2849 | /* If flush took the "buffer" see if we have one from before */ |
2850 | if (!b->buf && m->bbuf) | |
2851 | b->buf = m->bbuf; | |
2852 | if (!b->buf) | |
2853 | { | |
2854 | PerlIOBuf_get_base(f); | |
2855 | m->bbuf = b->buf; | |
2856 | } | |
06da4f11 | 2857 | } |
5e2ab84b | 2858 | return PerlIOBuf_unread(f,vbuf,count); |
06da4f11 NIS |
2859 | } |
2860 | ||
2861 | SSize_t | |
2862 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
2863 | { | |
2864 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2865 | PerlIOBuf *b = &m->base; | |
2866 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
2867 | { | |
2868 | /* No, or wrong sort of, buffer */ | |
2869 | if (m->len) | |
2870 | { | |
2871 | if (PerlIOMmap_unmap(f) != 0) | |
2872 | return 0; | |
2873 | } | |
2874 | /* If unmap took the "buffer" see if we have one from before */ | |
2875 | if (!b->buf && m->bbuf) | |
2876 | b->buf = m->bbuf; | |
2877 | if (!b->buf) | |
2878 | { | |
2879 | PerlIOBuf_get_base(f); | |
2880 | m->bbuf = b->buf; | |
2881 | } | |
2882 | } | |
2883 | return PerlIOBuf_write(f,vbuf,count); | |
2884 | } | |
2885 | ||
2886 | IV | |
2887 | PerlIOMmap_flush(PerlIO *f) | |
2888 | { | |
2889 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2890 | PerlIOBuf *b = &m->base; | |
2891 | IV code = PerlIOBuf_flush(f); | |
2892 | /* Now we are "synced" at PerlIOBuf level */ | |
2893 | if (b->buf) | |
2894 | { | |
2895 | if (m->len) | |
2896 | { | |
2897 | /* Unmap the buffer */ | |
2898 | if (PerlIOMmap_unmap(f) != 0) | |
2899 | code = -1; | |
2900 | } | |
2901 | else | |
2902 | { | |
2903 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
2904 | * remember it in case we need one later | |
2905 | */ | |
2906 | m->bbuf = b->buf; | |
2907 | } | |
2908 | } | |
06da4f11 NIS |
2909 | return code; |
2910 | } | |
2911 | ||
2912 | IV | |
2913 | PerlIOMmap_fill(PerlIO *f) | |
2914 | { | |
2915 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2916 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
2917 | if (code == 0 && !b->buf) |
2918 | { | |
2919 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
2920 | } |
2921 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2922 | { | |
2923 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
2924 | } |
2925 | return code; | |
2926 | } | |
2927 | ||
2928 | IV | |
2929 | PerlIOMmap_close(PerlIO *f) | |
2930 | { | |
2931 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2932 | PerlIOBuf *b = &m->base; | |
2933 | IV code = PerlIO_flush(f); | |
2934 | if (m->bbuf) | |
2935 | { | |
2936 | b->buf = m->bbuf; | |
2937 | m->bbuf = NULL; | |
2938 | b->ptr = b->end = b->buf; | |
2939 | } | |
2940 | if (PerlIOBuf_close(f) != 0) | |
2941 | code = -1; | |
06da4f11 NIS |
2942 | return code; |
2943 | } | |
2944 | ||
2945 | ||
2946 | PerlIO_funcs PerlIO_mmap = { | |
2947 | "mmap", | |
2948 | sizeof(PerlIOMmap), | |
f5b9d040 | 2949 | PERLIO_K_BUFFERED, |
06da4f11 NIS |
2950 | PerlIOBase_fileno, |
2951 | PerlIOBuf_fdopen, | |
2952 | PerlIOBuf_open, | |
c3d7c7c9 | 2953 | PerlIOBuf_reopen, |
5e2ab84b | 2954 | PerlIOBuf_pushed, |
06da4f11 NIS |
2955 | PerlIOBase_noop_ok, |
2956 | PerlIOBuf_read, | |
2957 | PerlIOMmap_unread, | |
2958 | PerlIOMmap_write, | |
2959 | PerlIOBuf_seek, | |
2960 | PerlIOBuf_tell, | |
2961 | PerlIOBuf_close, | |
2962 | PerlIOMmap_flush, | |
2963 | PerlIOMmap_fill, | |
2964 | PerlIOBase_eof, | |
2965 | PerlIOBase_error, | |
2966 | PerlIOBase_clearerr, | |
2967 | PerlIOBuf_setlinebuf, | |
2968 | PerlIOMmap_get_base, | |
2969 | PerlIOBuf_bufsiz, | |
2970 | PerlIOBuf_get_ptr, | |
2971 | PerlIOBuf_get_cnt, | |
2972 | PerlIOBuf_set_ptrcnt, | |
2973 | }; | |
2974 | ||
2975 | #endif /* HAS_MMAP */ | |
2976 | ||
9e353e3b NIS |
2977 | void |
2978 | PerlIO_init(void) | |
760ac839 | 2979 | { |
9e353e3b | 2980 | if (!_perlio) |
6f9d8c32 | 2981 | { |
be696b0a | 2982 | #ifndef WIN32 |
9e353e3b | 2983 | atexit(&PerlIO_cleanup); |
be696b0a | 2984 | #endif |
6f9d8c32 | 2985 | } |
760ac839 LW |
2986 | } |
2987 | ||
9e353e3b NIS |
2988 | #undef PerlIO_stdin |
2989 | PerlIO * | |
2990 | PerlIO_stdin(void) | |
2991 | { | |
2992 | if (!_perlio) | |
f3862f8b | 2993 | PerlIO_stdstreams(); |
05d1247b | 2994 | return &_perlio[1]; |
9e353e3b NIS |
2995 | } |
2996 | ||
2997 | #undef PerlIO_stdout | |
2998 | PerlIO * | |
2999 | PerlIO_stdout(void) | |
3000 | { | |
3001 | if (!_perlio) | |
f3862f8b | 3002 | PerlIO_stdstreams(); |
05d1247b | 3003 | return &_perlio[2]; |
9e353e3b NIS |
3004 | } |
3005 | ||
3006 | #undef PerlIO_stderr | |
3007 | PerlIO * | |
3008 | PerlIO_stderr(void) | |
3009 | { | |
3010 | if (!_perlio) | |
f3862f8b | 3011 | PerlIO_stdstreams(); |
05d1247b | 3012 | return &_perlio[3]; |
9e353e3b NIS |
3013 | } |
3014 | ||
3015 | /*--------------------------------------------------------------------------------------*/ | |
3016 | ||
3017 | #undef PerlIO_getname | |
3018 | char * | |
3019 | PerlIO_getname(PerlIO *f, char *buf) | |
3020 | { | |
3021 | dTHX; | |
3022 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
3023 | return NULL; | |
3024 | } | |
3025 | ||
3026 | ||
3027 | /*--------------------------------------------------------------------------------------*/ | |
3028 | /* Functions which can be called on any kind of PerlIO implemented | |
3029 | in terms of above | |
3030 | */ | |
3031 | ||
3032 | #undef PerlIO_getc | |
6f9d8c32 | 3033 | int |
9e353e3b | 3034 | PerlIO_getc(PerlIO *f) |
760ac839 | 3035 | { |
313ca112 NIS |
3036 | STDCHAR buf[1]; |
3037 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 3038 | if (count == 1) |
313ca112 NIS |
3039 | { |
3040 | return (unsigned char) buf[0]; | |
3041 | } | |
3042 | return EOF; | |
3043 | } | |
3044 | ||
3045 | #undef PerlIO_ungetc | |
3046 | int | |
3047 | PerlIO_ungetc(PerlIO *f, int ch) | |
3048 | { | |
3049 | if (ch != EOF) | |
3050 | { | |
3051 | STDCHAR buf = ch; | |
3052 | if (PerlIO_unread(f,&buf,1) == 1) | |
3053 | return ch; | |
3054 | } | |
3055 | return EOF; | |
760ac839 LW |
3056 | } |
3057 | ||
9e353e3b NIS |
3058 | #undef PerlIO_putc |
3059 | int | |
3060 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 3061 | { |
9e353e3b NIS |
3062 | STDCHAR buf = ch; |
3063 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
3064 | } |
3065 | ||
9e353e3b | 3066 | #undef PerlIO_puts |
760ac839 | 3067 | int |
9e353e3b | 3068 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 3069 | { |
9e353e3b NIS |
3070 | STRLEN len = strlen(s); |
3071 | return PerlIO_write(f,s,len); | |
760ac839 LW |
3072 | } |
3073 | ||
3074 | #undef PerlIO_rewind | |
3075 | void | |
c78749f2 | 3076 | PerlIO_rewind(PerlIO *f) |
760ac839 | 3077 | { |
6f9d8c32 | 3078 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 3079 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
3080 | } |
3081 | ||
3082 | #undef PerlIO_vprintf | |
3083 | int | |
3084 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
3085 | { | |
3086 | dTHX; | |
bb9950b7 | 3087 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
3088 | char *s; |
3089 | STRLEN len; | |
2cc61e15 DD |
3090 | #ifdef NEED_VA_COPY |
3091 | va_list apc; | |
3092 | Perl_va_copy(ap, apc); | |
3093 | sv_vcatpvf(sv, fmt, &apc); | |
3094 | #else | |
6f9d8c32 | 3095 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 3096 | #endif |
6f9d8c32 | 3097 | s = SvPV(sv,len); |
bb9950b7 | 3098 | return PerlIO_write(f,s,len); |
760ac839 LW |
3099 | } |
3100 | ||
3101 | #undef PerlIO_printf | |
6f9d8c32 | 3102 | int |
760ac839 | 3103 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
3104 | { |
3105 | va_list ap; | |
3106 | int result; | |
760ac839 | 3107 | va_start(ap,fmt); |
6f9d8c32 | 3108 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
3109 | va_end(ap); |
3110 | return result; | |
3111 | } | |
3112 | ||
3113 | #undef PerlIO_stdoutf | |
6f9d8c32 | 3114 | int |
760ac839 | 3115 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
3116 | { |
3117 | va_list ap; | |
3118 | int result; | |
760ac839 | 3119 | va_start(ap,fmt); |
760ac839 LW |
3120 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
3121 | va_end(ap); | |
3122 | return result; | |
3123 | } | |
3124 | ||
3125 | #undef PerlIO_tmpfile | |
3126 | PerlIO * | |
c78749f2 | 3127 | PerlIO_tmpfile(void) |
760ac839 | 3128 | { |
b1ef6e3b | 3129 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 | 3130 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
adb71456 | 3131 | dTHX; |
83b075c3 | 3132 | PerlIO *f = NULL; |
eaf8b698 | 3133 | FILE *stdio = PerlSIO_tmpfile(); |
83b075c3 NIS |
3134 | if (stdio) |
3135 | { | |
33af2bc7 | 3136 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"w+",Nullch,0),PerlIOStdio); |
83b075c3 NIS |
3137 | s->stdio = stdio; |
3138 | } | |
3139 | return f; | |
3140 | #else | |
3141 | dTHX; | |
6f9d8c32 NIS |
3142 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
3143 | int fd = mkstemp(SvPVX(sv)); | |
3144 | PerlIO *f = NULL; | |
3145 | if (fd >= 0) | |
3146 | { | |
b1ef6e3b | 3147 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
3148 | if (f) |
3149 | { | |
9e353e3b | 3150 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 3151 | } |
00b02797 | 3152 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
3153 | SvREFCNT_dec(sv); |
3154 | } | |
3155 | return f; | |
83b075c3 | 3156 | #endif |
760ac839 LW |
3157 | } |
3158 | ||
6f9d8c32 NIS |
3159 | #undef HAS_FSETPOS |
3160 | #undef HAS_FGETPOS | |
3161 | ||
760ac839 LW |
3162 | #endif /* USE_SFIO */ |
3163 | #endif /* PERLIO_IS_STDIO */ | |
3164 | ||
9e353e3b NIS |
3165 | /*======================================================================================*/ |
3166 | /* Now some functions in terms of above which may be needed even if | |
3167 | we are not in true PerlIO mode | |
3168 | */ | |
3169 | ||
760ac839 LW |
3170 | #ifndef HAS_FSETPOS |
3171 | #undef PerlIO_setpos | |
3172 | int | |
766a733e | 3173 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 3174 | { |
766a733e NIS |
3175 | dTHX; |
3176 | if (SvOK(pos)) | |
3177 | { | |
3178 | STRLEN len; | |
3179 | Off_t *posn = (Off_t *) SvPV(pos,len); | |
3180 | if (f && len == sizeof(Off_t)) | |
3181 | return PerlIO_seek(f,*posn,SEEK_SET); | |
3182 | } | |
3183 | errno = EINVAL; | |
3184 | return -1; | |
760ac839 | 3185 | } |
c411622e | 3186 | #else |
c411622e | 3187 | #undef PerlIO_setpos |
3188 | int | |
766a733e | 3189 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 3190 | { |
766a733e NIS |
3191 | dTHX; |
3192 | if (SvOK(pos)) | |
3193 | { | |
3194 | STRLEN len; | |
3195 | Fpos_t *fpos = (Fpos_t *) SvPV(pos,len); | |
3196 | if (f && len == sizeof(Fpos_t)) | |
3197 | { | |
2d4389e4 | 3198 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3199 | return fsetpos64(f, fpos); |
d9b3e12d | 3200 | #else |
766a733e | 3201 | return fsetpos(f, fpos); |
d9b3e12d | 3202 | #endif |
766a733e NIS |
3203 | } |
3204 | } | |
3205 | errno = EINVAL; | |
3206 | return -1; | |
c411622e | 3207 | } |
3208 | #endif | |
760ac839 LW |
3209 | |
3210 | #ifndef HAS_FGETPOS | |
3211 | #undef PerlIO_getpos | |
3212 | int | |
766a733e | 3213 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 3214 | { |
766a733e NIS |
3215 | dTHX; |
3216 | Off_t posn = PerlIO_tell(f); | |
3217 | sv_setpvn(pos,(char *)&posn,sizeof(posn)); | |
3218 | return (posn == (Off_t)-1) ? -1 : 0; | |
760ac839 | 3219 | } |
c411622e | 3220 | #else |
c411622e | 3221 | #undef PerlIO_getpos |
3222 | int | |
766a733e | 3223 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 3224 | { |
766a733e NIS |
3225 | dTHX; |
3226 | Fpos_t fpos; | |
3227 | int code; | |
2d4389e4 | 3228 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e | 3229 | code = fgetpos64(f, &fpos); |
d9b3e12d | 3230 | #else |
766a733e | 3231 | code = fgetpos(f, &fpos); |
d9b3e12d | 3232 | #endif |
766a733e NIS |
3233 | sv_setpvn(pos,(char *)&fpos,sizeof(fpos)); |
3234 | return code; | |
c411622e | 3235 | } |
3236 | #endif | |
760ac839 LW |
3237 | |
3238 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
3239 | ||
3240 | int | |
c78749f2 | 3241 | vprintf(char *pat, char *args) |
662a7e3f CS |
3242 | { |
3243 | _doprnt(pat, args, stdout); | |
3244 | return 0; /* wrong, but perl doesn't use the return value */ | |
3245 | } | |
3246 | ||
3247 | int | |
c78749f2 | 3248 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
3249 | { |
3250 | _doprnt(pat, args, fd); | |
3251 | return 0; /* wrong, but perl doesn't use the return value */ | |
3252 | } | |
3253 | ||
3254 | #endif | |
3255 | ||
3256 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 3257 | int |
8ac85365 | 3258 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
3259 | { |
3260 | int val = vsprintf(s, fmt, ap); | |
3261 | if (n >= 0) | |
3262 | { | |
8c86a920 | 3263 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 3264 | { |
bf49b057 | 3265 | dTHX; |
fb4a9925 JH |
3266 | (void)PerlIO_puts(Perl_error_log, |
3267 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 3268 | my_exit(1); |
760ac839 LW |
3269 | } |
3270 | } | |
3271 | return val; | |
3272 | } | |
3273 | #endif | |
3274 | ||
3275 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 3276 | int |
760ac839 | 3277 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
3278 | { |
3279 | va_list ap; | |
3280 | int result; | |
760ac839 | 3281 | va_start(ap,fmt); |
760ac839 LW |
3282 | result = PerlIO_vsprintf(s, n, fmt, ap); |
3283 | va_end(ap); | |
3284 | return result; | |
3285 | } | |
3286 | #endif | |
3287 | ||
c5be433b | 3288 |