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760ac839 |
1 | /* perlio.c |
2 | * |
1761cee5 |
3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
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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 |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" |
13 | #else |
14 | # include "config.h" |
15 | #endif |
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16 | |
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17 | #define PERLIO_NOT_STDIO 0 |
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18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 |
19 | /* #define PerlIO FILE */ |
760ac839 |
20 | #endif |
21 | /* |
6f9d8c32 |
22 | * This file provides those parts of PerlIO abstraction |
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23 | * which are not #defined in perlio.h. |
6f9d8c32 |
24 | * Which these are depends on various Configure #ifdef's |
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25 | */ |
26 | |
27 | #include "EXTERN.h" |
864dbfa3 |
28 | #define PERL_IN_PERLIO_C |
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29 | #include "perl.h" |
30 | |
5f1a76d0 |
31 | #undef PerlMemShared_calloc |
32 | #define PerlMemShared_calloc(x,y) calloc(x,y) |
33 | #undef PerlMemShared_free |
34 | #define PerlMemShared_free(x) free(x) |
35 | |
60382766 |
36 | int |
f5b9d040 |
37 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 |
38 | { |
39 | /* This used to be contents of do_binmode in doio.c */ |
40 | #ifdef DOSISH |
41 | # if defined(atarist) || defined(__MINT__) |
f5b9d040 |
42 | if (!fflush(fp)) { |
60382766 |
43 | if (mode & O_BINARY) |
44 | ((FILE*)fp)->_flag |= _IOBIN; |
45 | else |
46 | ((FILE*)fp)->_flag &= ~ _IOBIN; |
47 | return 1; |
48 | } |
49 | return 0; |
50 | # else |
eb73beca |
51 | dTHX; |
f5b9d040 |
52 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
60382766 |
53 | # if defined(WIN32) && defined(__BORLANDC__) |
54 | /* The translation mode of the stream is maintained independent |
55 | * of the translation mode of the fd in the Borland RTL (heavy |
56 | * digging through their runtime sources reveal). User has to |
57 | * set the mode explicitly for the stream (though they don't |
58 | * document this anywhere). GSAR 97-5-24 |
59 | */ |
f5b9d040 |
60 | fseek(fp,0L,0); |
60382766 |
61 | if (mode & O_BINARY) |
f5b9d040 |
62 | fp->flags |= _F_BIN; |
60382766 |
63 | else |
f5b9d040 |
64 | fp->flags &= ~ _F_BIN; |
60382766 |
65 | # endif |
66 | return 1; |
67 | } |
68 | else |
69 | return 0; |
70 | # endif |
71 | #else |
72 | # if defined(USEMYBINMODE) |
73 | if (my_binmode(fp, iotype, mode) != FALSE) |
74 | return 1; |
75 | else |
76 | return 0; |
77 | # else |
78 | return 1; |
79 | # endif |
80 | #endif |
81 | } |
82 | |
eb73beca |
83 | #ifndef PERLIO_LAYERS |
84 | int |
85 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
86 | { |
87 | if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw")) |
88 | { |
89 | return 0; |
90 | } |
91 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names); |
92 | /* NOTREACHED */ |
93 | return -1; |
94 | } |
95 | |
f5b9d040 |
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 |
102 | #endif |
103 | |
32e30700 |
104 | |
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105 | #ifdef PERLIO_IS_STDIO |
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106 | |
107 | void |
8ac85365 |
108 | PerlIO_init(void) |
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109 | { |
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110 | /* Does nothing (yet) except force this file to be included |
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111 | in perl binary. That allows this file to force inclusion |
6f9d8c32 |
112 | of other functions that may be required by loadable |
113 | extensions e.g. for FileHandle::tmpfile |
760ac839 |
114 | */ |
115 | } |
116 | |
33dcbb9a |
117 | #undef PerlIO_tmpfile |
118 | PerlIO * |
8ac85365 |
119 | PerlIO_tmpfile(void) |
33dcbb9a |
120 | { |
121 | return tmpfile(); |
122 | } |
123 | |
760ac839 |
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 |
132 | get pulled in from libsfio.a |
133 | */ |
134 | |
135 | #undef PerlIO_tmpfile |
136 | PerlIO * |
c78749f2 |
137 | PerlIO_tmpfile(void) |
760ac839 |
138 | { |
139 | return sftmp(0); |
140 | } |
141 | |
142 | void |
c78749f2 |
143 | PerlIO_init(void) |
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144 | { |
6f9d8c32 |
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 |
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 |
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 |
163 | #include "perliol.h" |
164 | |
b1ef6e3b |
165 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f |
166 | #ifdef I_UNISTD |
167 | #include <unistd.h> |
168 | #endif |
06da4f11 |
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 |
182 | va_list ap; |
183 | va_start(ap,fmt); |
6f9d8c32 |
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 |
189 | else |
190 | dbg = -1; |
191 | } |
192 | if (dbg > 0) |
193 | { |
194 | dTHX; |
6f9d8c32 |
195 | SV *sv = newSVpvn("",0); |
196 | char *s; |
197 | STRLEN len; |
05d1247b |
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 |
202 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
203 | |
6f9d8c32 |
204 | s = SvPV(sv,len); |
00b02797 |
205 | PerlLIO_write(dbg,s,len); |
6f9d8c32 |
206 | SvREFCNT_dec(sv); |
207 | } |
88b61e10 |
208 | va_end(ap); |
6f9d8c32 |
209 | } |
210 | |
9e353e3b |
211 | /*--------------------------------------------------------------------------------------*/ |
212 | |
9e353e3b |
213 | /* Inner level routines */ |
214 | |
b1ef6e3b |
215 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b |
216 | PerlIO *_perlio = NULL; |
217 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 |
218 | |
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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 |
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 |
234 | return f; |
235 | } |
6f9d8c32 |
236 | } |
6f9d8c32 |
237 | } |
5f1a76d0 |
238 | f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO)); |
05d1247b |
239 | if (!f) |
5f1a76d0 |
240 | { |
241 | return NULL; |
766a733e |
242 | } |
05d1247b |
243 | *last = f; |
244 | return f+1; |
245 | } |
246 | |
247 | void |
5f1a76d0 |
248 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b |
249 | { |
250 | PerlIO *table = *tablep; |
251 | if (table) |
252 | { |
253 | int i; |
5f1a76d0 |
254 | PerlIO_cleantable(aTHX_ (PerlIO **) &(table[0])); |
05d1247b |
255 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
256 | { |
257 | PerlIO *f = table+i; |
60382766 |
258 | if (*f) |
3789aae2 |
259 | { |
260 | PerlIO_close(f); |
261 | } |
05d1247b |
262 | } |
5f1a76d0 |
263 | PerlMemShared_free(table); |
05d1247b |
264 | *tablep = NULL; |
265 | } |
266 | } |
267 | |
4a4a6116 |
268 | HV *PerlIO_layer_hv; |
269 | AV *PerlIO_layer_av; |
270 | |
05d1247b |
271 | void |
5f1a76d0 |
272 | PerlIO_cleanup() |
05d1247b |
273 | { |
5f1a76d0 |
274 | dTHX; |
275 | PerlIO_cleantable(aTHX_ &_perlio); |
6f9d8c32 |
276 | } |
277 | |
9e353e3b |
278 | void |
279 | PerlIO_pop(PerlIO *f) |
760ac839 |
280 | { |
5f1a76d0 |
281 | dTHX; |
9e353e3b |
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 |
290 | } |
291 | |
9e353e3b |
292 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 |
293 | /* XS Interface for perl code */ |
9e353e3b |
294 | |
b931b1d9 |
295 | XS(XS_perlio_import) |
f3862f8b |
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 |
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 |
317 | { |
318 | dTHX; |
319 | SV **svp; |
320 | SV *sv; |
766a733e |
321 | if ((SSize_t) len <= 0) |
f3862f8b |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
394 | for (i=2; i < items; i++) |
395 | { |
396 | STRLEN len; |
ac27b0f5 |
397 | const char *name = SvPV(ST(i),len); |
b13b2135 |
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 |
413 | void |
414 | PerlIO_define_layer(PerlIO_funcs *tab) |
415 | { |
416 | dTHX; |
b931b1d9 |
417 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 |
418 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b |
419 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
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 |
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 |
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 |
441 | PerlIO_define_layer(&PerlIO_perlio); |
442 | PerlIO_define_layer(&PerlIO_stdio); |
66ecd56b |
443 | PerlIO_define_layer(&PerlIO_crlf); |
06da4f11 |
444 | #ifdef HAS_MMAP |
445 | PerlIO_define_layer(&PerlIO_mmap); |
446 | #endif |
f3862f8b |
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 |
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 |
460 | if (*s == ':') |
461 | s++; |
f3862f8b |
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 |
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 |
481 | } |
482 | else |
a4d3c1d3 |
483 | { |
f5b9d040 |
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 |
489 | { |
490 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); |
491 | } |
a4d3c1d3 |
492 | } |
f3862f8b |
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 |
501 | } |
502 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ |
503 | return tab; |
504 | } |
505 | |
60382766 |
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 |
514 | dTHX; |
515 | PerlIO_allocate(aTHX); |
f5b9d040 |
516 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
517 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); |
518 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); |
60382766 |
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 |
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 |
536 | { |
537 | PerlIO_pop(f); |
538 | return NULL; |
539 | } |
540 | } |
541 | return f; |
542 | } |
543 | |
ac27b0f5 |
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 |
559 | const char *as = Nullch; |
560 | const char *ae = Nullch; |
561 | int count = 0; |
ac27b0f5 |
562 | while (*e && *e != ':' && !isSPACE(*e)) |
33af2bc7 |
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 |
577 | if (e > s) |
578 | { |
60382766 |
579 | if ((e - s) == 3 && strncmp(s,"raw",3) == 0) |
ac27b0f5 |
580 | { |
60382766 |
581 | /* Pop back to bottom layer */ |
582 | if (PerlIONext(f)) |
ac27b0f5 |
583 | { |
60382766 |
584 | PerlIO_flush(f); |
585 | while (PerlIONext(f)) |
586 | { |
587 | PerlIO_pop(f); |
588 | } |
ac27b0f5 |
589 | } |
590 | } |
7d59b7e4 |
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 |
601 | STRLEN len = ((as) ? as : e)-s; |
602 | SV *layer = PerlIO_find_layer(s,len); |
60382766 |
603 | if (layer) |
604 | { |
605 | PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer))); |
606 | if (tab) |
607 | { |
33af2bc7 |
608 | len = (as) ? (ae-(as++)-1) : 0; |
609 | if (!PerlIO_push(f,tab,mode,as,len)) |
60382766 |
610 | return -1; |
611 | } |
612 | } |
613 | else |
33af2bc7 |
614 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)len,s); |
60382766 |
615 | } |
ac27b0f5 |
616 | } |
617 | s = e; |
618 | } |
619 | } |
620 | } |
621 | return 0; |
622 | } |
623 | |
f3862f8b |
624 | |
9e353e3b |
625 | |
60382766 |
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 |
637 | PerlIOl *l; |
638 | while (l = *top) |
76ced9ad |
639 | { |
60382766 |
640 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
641 | { |
642 | PerlIO_flush(top); |
a4d3c1d3 |
643 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 |
644 | break; |
645 | } |
646 | top = PerlIONext(top); |
76ced9ad |
647 | } |
648 | } |
f5b9d040 |
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 |
657 | } |
658 | |
5f1a76d0 |
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 |
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 |
695 | #undef PerlIO_fdopen |
696 | PerlIO * |
697 | PerlIO_fdopen(int fd, const char *mode) |
698 | { |
699 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
700 | if (!_perlio) |
701 | PerlIO_stdstreams(); |
06da4f11 |
702 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b |
703 | } |
704 | |
6f9d8c32 |
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 |
710 | if (!_perlio) |
711 | PerlIO_stdstreams(); |
06da4f11 |
712 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 |
713 | } |
714 | |
9e353e3b |
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 |
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 |
726 | } |
727 | return NULL; |
6f9d8c32 |
728 | } |
9e353e3b |
729 | else |
730 | return PerlIO_open(path,mode); |
760ac839 |
731 | } |
732 | |
9e353e3b |
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 |
738 | } |
739 | |
313ca112 |
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 |
745 | } |
746 | |
9e353e3b |
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 |
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 |
759 | } |
760 | |
9e353e3b |
761 | #undef PerlIO_tell |
762 | Off_t |
763 | PerlIO_tell(PerlIO *f) |
760ac839 |
764 | { |
9e353e3b |
765 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 |
766 | } |
767 | |
9e353e3b |
768 | #undef PerlIO_flush |
6f9d8c32 |
769 | int |
9e353e3b |
770 | PerlIO_flush(PerlIO *f) |
760ac839 |
771 | { |
6f9d8c32 |
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 |
782 | int i; |
783 | table = (PerlIO **)(f++); |
784 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
9e353e3b |
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 |
793 | } |
794 | |
06da4f11 |
795 | #undef PerlIO_fill |
796 | int |
797 | PerlIO_fill(PerlIO *f) |
798 | { |
799 | return (*PerlIOBase(f)->tab->Fill)(f); |
800 | } |
801 | |
f3862f8b |
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 |
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 |
827 | if (f && *f) |
828 | (*PerlIOBase(f)->tab->Clearerr)(f); |
9e353e3b |
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 |
847 | } |
848 | |
9e353e3b |
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 |
855 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
856 | return (tab->Set_ptrcnt != NULL); |
6f9d8c32 |
857 | } |
9e353e3b |
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 |
879 | PerlIOl *l = PerlIOBase(f); |
880 | return (l->tab->Set_ptrcnt != NULL); |
9e353e3b |
881 | } |
c7fc522f |
882 | return 0; |
760ac839 |
883 | } |
884 | |
885 | #undef PerlIO_get_base |
888911fc |
886 | STDCHAR * |
a20bf0c3 |
887 | PerlIO_get_base(PerlIO *f) |
760ac839 |
888 | { |
9e353e3b |
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 |
903 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
904 | if (tab->Get_ptr == NULL) |
905 | return NULL; |
906 | return (*tab->Get_ptr)(f); |
9e353e3b |
907 | } |
908 | |
909 | #undef PerlIO_get_cnt |
05d1247b |
910 | int |
9e353e3b |
911 | PerlIO_get_cnt(PerlIO *f) |
912 | { |
5e2ab84b |
913 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
914 | if (tab->Get_cnt == NULL) |
915 | return 0; |
916 | return (*tab->Get_cnt)(f); |
9e353e3b |
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 |
924 | } |
925 | |
926 | #undef PerlIO_set_ptrcnt |
927 | void |
05d1247b |
928 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b |
929 | { |
5e2ab84b |
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 |
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 |
948 | char * |
949 | PerlIO_modestr(PerlIO *f,char *buf) |
950 | { |
951 | char *s = buf; |
952 | IV flags = PerlIOBase(f)->flags; |
5f1a76d0 |
953 | if (flags & PERLIO_F_APPEND) |
954 | { |
955 | *s++ = 'a'; |
956 | if (flags & PERLIO_F_CANREAD) |
957 | { |
958 | *s++ = '+'; |
959 | } |
766a733e |
960 | } |
5f1a76d0 |
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 |
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 |
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 |
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 |
1000 | break; |
1001 | case 'a': |
f5b9d040 |
1002 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad |
1003 | break; |
1004 | case 'w': |
f5b9d040 |
1005 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad |
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 |
1019 | l->flags &= ~PERLIO_F_CRLF; |
1020 | break; |
1021 | case 't': |
1022 | l->flags |= PERLIO_F_CRLF; |
76ced9ad |
1023 | break; |
1024 | default: |
1025 | errno = EINVAL; |
1026 | return -1; |
1027 | } |
06da4f11 |
1028 | } |
6f9d8c32 |
1029 | } |
76ced9ad |
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 |
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 |
1043 | return 0; |
1044 | } |
1045 | |
1046 | IV |
1047 | PerlIOBase_popped(PerlIO *f) |
1048 | { |
1049 | return 0; |
760ac839 |
1050 | } |
1051 | |
9e353e3b |
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 |
1058 | done = PerlIOBuf_unread(f,vbuf,count); |
1059 | PerlIOSelf(f,PerlIOBuf)->posn = old - done; |
1060 | return done; |
9e353e3b |
1061 | } |
1062 | |
1063 | IV |
06da4f11 |
1064 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b |
1065 | { |
1066 | return 0; |
1067 | } |
1068 | |
1069 | IV |
06da4f11 |
1070 | PerlIOBase_noop_fail(PerlIO *f) |
1071 | { |
1072 | return -1; |
1073 | } |
1074 | |
1075 | IV |
9e353e3b |
1076 | PerlIOBase_close(PerlIO *f) |
1077 | { |
1078 | IV code = 0; |
f5b9d040 |
1079 | PerlIO *n = PerlIONext(f); |
9e353e3b |
1080 | if (PerlIO_flush(f) != 0) |
1081 | code = -1; |
f5b9d040 |
1082 | if (n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b |
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 |
1113 | PerlIO *n = PerlIONext(f); |
1114 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); |
1115 | if (n) |
1116 | PerlIO_clearerr(n); |
9e353e3b |
1117 | } |
1118 | } |
1119 | |
1120 | void |
1121 | PerlIOBase_setlinebuf(PerlIO *f) |
1122 | { |
1123 | |
1124 | } |
1125 | |
9e353e3b |
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 |
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 |
1173 | if (*mode == 'b') |
1174 | { |
f5b9d040 |
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 |
1183 | mode++; |
1184 | } |
99efab12 |
1185 | /* Always open in binary mode */ |
1186 | oflags |= O_BINARY; |
9e353e3b |
1187 | if (*mode || oflags == -1) |
6f9d8c32 |
1188 | { |
9e353e3b |
1189 | errno = EINVAL; |
1190 | oflags = -1; |
6f9d8c32 |
1191 | } |
9e353e3b |
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 |
1206 | if (*mode == 'I') |
1207 | mode++; |
9e353e3b |
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 |
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 |
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 |
1231 | if (fd >= 0) |
1232 | { |
33af2bc7 |
1233 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOUnix); |
9e353e3b |
1234 | s->fd = fd; |
1235 | s->oflags = oflags; |
1236 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
1237 | } |
1238 | } |
1239 | return f; |
760ac839 |
1240 | } |
1241 | |
760ac839 |
1242 | int |
9e353e3b |
1243 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 |
1244 | { |
9e353e3b |
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 |
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 |
1269 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1270 | return 0; |
9e353e3b |
1271 | while (1) |
1272 | { |
00b02797 |
1273 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b |
1274 | if (len >= 0 || errno != EINTR) |
06da4f11 |
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 | } |
0a8e0eff |
1282 | PERL_ASYNC_CHECK(); |
9e353e3b |
1283 | } |
1284 | } |
1285 | |
1286 | SSize_t |
1287 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) |
1288 | { |
adb71456 |
1289 | dTHX; |
9e353e3b |
1290 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1291 | while (1) |
1292 | { |
00b02797 |
1293 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b |
1294 | if (len >= 0 || errno != EINTR) |
06da4f11 |
1295 | { |
1296 | if (len < 0) |
1297 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1298 | return len; |
1299 | } |
0a8e0eff |
1300 | PERL_ASYNC_CHECK(); |
9e353e3b |
1301 | } |
1302 | } |
1303 | |
1304 | IV |
1305 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) |
1306 | { |
adb71456 |
1307 | dTHX; |
00b02797 |
1308 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 |
1309 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b |
1310 | return (new == (Off_t) -1) ? -1 : 0; |
1311 | } |
1312 | |
1313 | Off_t |
1314 | PerlIOUnix_tell(PerlIO *f) |
1315 | { |
adb71456 |
1316 | dTHX; |
766a733e |
1317 | Off_t posn = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
00b02797 |
1318 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b |
1319 | } |
1320 | |
1321 | IV |
1322 | PerlIOUnix_close(PerlIO *f) |
1323 | { |
adb71456 |
1324 | dTHX; |
9e353e3b |
1325 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1326 | int code = 0; |
00b02797 |
1327 | while (PerlLIO_close(fd) != 0) |
9e353e3b |
1328 | { |
1329 | if (errno != EINTR) |
1330 | { |
1331 | code = -1; |
1332 | break; |
1333 | } |
0a8e0eff |
1334 | PERL_ASYNC_CHECK(); |
9e353e3b |
1335 | } |
1336 | if (code == 0) |
1337 | { |
1338 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
1339 | } |
1340 | return code; |
1341 | } |
1342 | |
1343 | PerlIO_funcs PerlIO_unix = { |
1344 | "unix", |
1345 | sizeof(PerlIOUnix), |
f5b9d040 |
1346 | PERLIO_K_RAW, |
9e353e3b |
1347 | PerlIOUnix_fileno, |
1348 | PerlIOUnix_fdopen, |
1349 | PerlIOUnix_open, |
1350 | PerlIOUnix_reopen, |
06da4f11 |
1351 | PerlIOBase_pushed, |
1352 | PerlIOBase_noop_ok, |
9e353e3b |
1353 | PerlIOUnix_read, |
1354 | PerlIOBase_unread, |
1355 | PerlIOUnix_write, |
1356 | PerlIOUnix_seek, |
1357 | PerlIOUnix_tell, |
1358 | PerlIOUnix_close, |
76ced9ad |
1359 | PerlIOBase_noop_ok, /* flush */ |
1360 | PerlIOBase_noop_fail, /* fill */ |
9e353e3b |
1361 | PerlIOBase_eof, |
1362 | PerlIOBase_error, |
1363 | PerlIOBase_clearerr, |
1364 | PerlIOBase_setlinebuf, |
1365 | NULL, /* get_base */ |
1366 | NULL, /* get_bufsiz */ |
1367 | NULL, /* get_ptr */ |
1368 | NULL, /* get_cnt */ |
1369 | NULL, /* set_ptrcnt */ |
1370 | }; |
1371 | |
1372 | /*--------------------------------------------------------------------------------------*/ |
1373 | /* stdio as a layer */ |
1374 | |
1375 | typedef struct |
1376 | { |
1377 | struct _PerlIO base; |
1378 | FILE * stdio; /* The stream */ |
1379 | } PerlIOStdio; |
1380 | |
1381 | IV |
1382 | PerlIOStdio_fileno(PerlIO *f) |
1383 | { |
adb71456 |
1384 | dTHX; |
eaf8b698 |
1385 | return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1386 | } |
1387 | |
766a733e |
1388 | char * |
f5b9d040 |
1389 | PerlIOStdio_mode(const char *mode,char *tmode) |
1390 | { |
766a733e |
1391 | char *ret = tmode; |
1392 | while (*mode) |
1393 | { |
1394 | *tmode++ = *mode++; |
1395 | } |
f5b9d040 |
1396 | if (O_BINARY != O_TEXT) |
1397 | { |
f5b9d040 |
1398 | *tmode++ = 'b'; |
f5b9d040 |
1399 | } |
766a733e |
1400 | *tmode = '\0'; |
f5b9d040 |
1401 | return ret; |
1402 | } |
9e353e3b |
1403 | |
1404 | PerlIO * |
06da4f11 |
1405 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b |
1406 | { |
adb71456 |
1407 | dTHX; |
9e353e3b |
1408 | PerlIO *f = NULL; |
c7fc522f |
1409 | int init = 0; |
f5b9d040 |
1410 | char tmode[8]; |
c7fc522f |
1411 | if (*mode == 'I') |
1412 | { |
1413 | init = 1; |
1414 | mode++; |
1415 | } |
9e353e3b |
1416 | if (fd >= 0) |
1417 | { |
c7fc522f |
1418 | FILE *stdio = NULL; |
1419 | if (init) |
1420 | { |
1421 | switch(fd) |
1422 | { |
1423 | case 0: |
eaf8b698 |
1424 | stdio = PerlSIO_stdin; |
c7fc522f |
1425 | break; |
1426 | case 1: |
eaf8b698 |
1427 | stdio = PerlSIO_stdout; |
c7fc522f |
1428 | break; |
1429 | case 2: |
eaf8b698 |
1430 | stdio = PerlSIO_stderr; |
c7fc522f |
1431 | break; |
1432 | } |
1433 | } |
1434 | else |
f5b9d040 |
1435 | { |
eaf8b698 |
1436 | stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); |
f5b9d040 |
1437 | } |
9e353e3b |
1438 | if (stdio) |
1439 | { |
33af2bc7 |
1440 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode,Nullch,0),PerlIOStdio); |
9e353e3b |
1441 | s->stdio = stdio; |
1442 | } |
1443 | } |
1444 | return f; |
1445 | } |
1446 | |
1447 | #undef PerlIO_importFILE |
1448 | PerlIO * |
1449 | PerlIO_importFILE(FILE *stdio, int fl) |
1450 | { |
5f1a76d0 |
1451 | dTHX; |
9e353e3b |
1452 | PerlIO *f = NULL; |
1453 | if (stdio) |
1454 | { |
33af2bc7 |
1455 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"r+",Nullch,0),PerlIOStdio); |
9e353e3b |
1456 | s->stdio = stdio; |
1457 | } |
1458 | return f; |
1459 | } |
1460 | |
1461 | PerlIO * |
06da4f11 |
1462 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b |
1463 | { |
adb71456 |
1464 | dTHX; |
9e353e3b |
1465 | PerlIO *f = NULL; |
eaf8b698 |
1466 | FILE *stdio = PerlSIO_fopen(path,mode); |
9e353e3b |
1467 | if (stdio) |
1468 | { |
f5b9d040 |
1469 | char tmode[8]; |
5f1a76d0 |
1470 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX), self, |
33af2bc7 |
1471 | (mode = PerlIOStdio_mode(mode,tmode)),Nullch,0), |
f5b9d040 |
1472 | PerlIOStdio); |
9e353e3b |
1473 | s->stdio = stdio; |
1474 | } |
1475 | return f; |
760ac839 |
1476 | } |
1477 | |
6f9d8c32 |
1478 | int |
9e353e3b |
1479 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1480 | { |
adb71456 |
1481 | dTHX; |
9e353e3b |
1482 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
f5b9d040 |
1483 | char tmode[8]; |
eaf8b698 |
1484 | FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); |
9e353e3b |
1485 | if (!s->stdio) |
1486 | return -1; |
1487 | s->stdio = stdio; |
1488 | return 0; |
1489 | } |
1490 | |
1491 | SSize_t |
1492 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) |
1493 | { |
adb71456 |
1494 | dTHX; |
9e353e3b |
1495 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f |
1496 | SSize_t got = 0; |
9e353e3b |
1497 | if (count == 1) |
1498 | { |
1499 | STDCHAR *buf = (STDCHAR *) vbuf; |
1500 | /* Perl is expecting PerlIO_getc() to fill the buffer |
1501 | * Linux's stdio does not do that for fread() |
1502 | */ |
eaf8b698 |
1503 | int ch = PerlSIO_fgetc(s); |
9e353e3b |
1504 | if (ch != EOF) |
1505 | { |
1506 | *buf = ch; |
c7fc522f |
1507 | got = 1; |
9e353e3b |
1508 | } |
9e353e3b |
1509 | } |
c7fc522f |
1510 | else |
eaf8b698 |
1511 | got = PerlSIO_fread(vbuf,1,count,s); |
c7fc522f |
1512 | return got; |
9e353e3b |
1513 | } |
1514 | |
1515 | SSize_t |
1516 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) |
1517 | { |
adb71456 |
1518 | dTHX; |
9e353e3b |
1519 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
1520 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; |
1521 | SSize_t unread = 0; |
1522 | while (count > 0) |
1523 | { |
1524 | int ch = *buf-- & 0xff; |
eaf8b698 |
1525 | if (PerlSIO_ungetc(ch,s) != ch) |
9e353e3b |
1526 | break; |
1527 | unread++; |
1528 | count--; |
1529 | } |
1530 | return unread; |
1531 | } |
1532 | |
1533 | SSize_t |
1534 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) |
1535 | { |
adb71456 |
1536 | dTHX; |
eaf8b698 |
1537 | return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1538 | } |
1539 | |
1540 | IV |
1541 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) |
1542 | { |
adb71456 |
1543 | dTHX; |
c7fc522f |
1544 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1545 | return PerlSIO_fseek(stdio,offset,whence); |
9e353e3b |
1546 | } |
1547 | |
1548 | Off_t |
1549 | PerlIOStdio_tell(PerlIO *f) |
1550 | { |
adb71456 |
1551 | dTHX; |
c7fc522f |
1552 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1553 | return PerlSIO_ftell(stdio); |
9e353e3b |
1554 | } |
1555 | |
1556 | IV |
1557 | PerlIOStdio_close(PerlIO *f) |
1558 | { |
adb71456 |
1559 | dTHX; |
8e4bc33b |
1560 | #ifdef HAS_SOCKET |
cf829ab0 |
1561 | int optval, optlen = sizeof(int); |
8e4bc33b |
1562 | #endif |
3789aae2 |
1563 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 |
1564 | return( |
8e4bc33b |
1565 | #ifdef HAS_SOCKET |
a4d3c1d3 |
1566 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ? |
eaf8b698 |
1567 | PerlSIO_fclose(stdio) : |
8e4bc33b |
1568 | close(PerlIO_fileno(f)) |
1569 | #else |
1570 | PerlSIO_fclose(stdio) |
1571 | #endif |
1572 | ); |
1573 | |
9e353e3b |
1574 | } |
1575 | |
1576 | IV |
1577 | PerlIOStdio_flush(PerlIO *f) |
1578 | { |
adb71456 |
1579 | dTHX; |
9e353e3b |
1580 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 |
1581 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
1582 | { |
eaf8b698 |
1583 | return PerlSIO_fflush(stdio); |
88b61e10 |
1584 | } |
1585 | else |
1586 | { |
1587 | #if 0 |
1588 | /* FIXME: This discards ungetc() and pre-read stuff which is |
1589 | not right if this is just a "sync" from a layer above |
1590 | Suspect right design is to do _this_ but not have layer above |
1591 | flush this layer read-to-read |
1592 | */ |
1593 | /* Not writeable - sync by attempting a seek */ |
1594 | int err = errno; |
eaf8b698 |
1595 | if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
88b61e10 |
1596 | errno = err; |
1597 | #endif |
1598 | } |
1599 | return 0; |
9e353e3b |
1600 | } |
1601 | |
1602 | IV |
06da4f11 |
1603 | PerlIOStdio_fill(PerlIO *f) |
1604 | { |
adb71456 |
1605 | dTHX; |
06da4f11 |
1606 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1607 | int c; |
3789aae2 |
1608 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
1609 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1610 | { |
eaf8b698 |
1611 | if (PerlSIO_fflush(stdio) != 0) |
3789aae2 |
1612 | return EOF; |
1613 | } |
eaf8b698 |
1614 | c = PerlSIO_fgetc(stdio); |
1615 | if (c == EOF || PerlSIO_ungetc(c,stdio) != c) |
06da4f11 |
1616 | return EOF; |
1617 | return 0; |
1618 | } |
1619 | |
1620 | IV |
9e353e3b |
1621 | PerlIOStdio_eof(PerlIO *f) |
1622 | { |
adb71456 |
1623 | dTHX; |
eaf8b698 |
1624 | return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1625 | } |
1626 | |
1627 | IV |
1628 | PerlIOStdio_error(PerlIO *f) |
1629 | { |
adb71456 |
1630 | dTHX; |
eaf8b698 |
1631 | return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1632 | } |
1633 | |
1634 | void |
1635 | PerlIOStdio_clearerr(PerlIO *f) |
1636 | { |
adb71456 |
1637 | dTHX; |
eaf8b698 |
1638 | PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1639 | } |
1640 | |
1641 | void |
1642 | PerlIOStdio_setlinebuf(PerlIO *f) |
1643 | { |
adb71456 |
1644 | dTHX; |
9e353e3b |
1645 | #ifdef HAS_SETLINEBUF |
eaf8b698 |
1646 | PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
9e353e3b |
1647 | #else |
eaf8b698 |
1648 | PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b |
1649 | #endif |
1650 | } |
1651 | |
1652 | #ifdef FILE_base |
1653 | STDCHAR * |
1654 | PerlIOStdio_get_base(PerlIO *f) |
1655 | { |
adb71456 |
1656 | dTHX; |
9e353e3b |
1657 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1658 | return PerlSIO_get_base(stdio); |
9e353e3b |
1659 | } |
1660 | |
1661 | Size_t |
1662 | PerlIOStdio_get_bufsiz(PerlIO *f) |
1663 | { |
adb71456 |
1664 | dTHX; |
9e353e3b |
1665 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1666 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b |
1667 | } |
1668 | #endif |
1669 | |
1670 | #ifdef USE_STDIO_PTR |
1671 | STDCHAR * |
1672 | PerlIOStdio_get_ptr(PerlIO *f) |
1673 | { |
adb71456 |
1674 | dTHX; |
9e353e3b |
1675 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1676 | return PerlSIO_get_ptr(stdio); |
9e353e3b |
1677 | } |
1678 | |
1679 | SSize_t |
1680 | PerlIOStdio_get_cnt(PerlIO *f) |
1681 | { |
adb71456 |
1682 | dTHX; |
9e353e3b |
1683 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
eaf8b698 |
1684 | return PerlSIO_get_cnt(stdio); |
9e353e3b |
1685 | } |
1686 | |
1687 | void |
1688 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) |
1689 | { |
adb71456 |
1690 | dTHX; |
9e353e3b |
1691 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1692 | if (ptr != NULL) |
1693 | { |
1694 | #ifdef STDIO_PTR_LVALUE |
eaf8b698 |
1695 | PerlSIO_set_ptr(stdio,ptr); |
9e353e3b |
1696 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
eaf8b698 |
1697 | if (PerlSIO_get_cnt(stdio) != (cnt)) |
9e353e3b |
1698 | { |
1699 | dTHX; |
eaf8b698 |
1700 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
9e353e3b |
1701 | } |
1702 | #endif |
1703 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) |
1704 | /* Setting ptr _does_ change cnt - we are done */ |
1705 | return; |
1706 | #endif |
1707 | #else /* STDIO_PTR_LVALUE */ |
eaf8b698 |
1708 | PerlProc_abort(); |
9e353e3b |
1709 | #endif /* STDIO_PTR_LVALUE */ |
1710 | } |
1711 | /* Now (or only) set cnt */ |
1712 | #ifdef STDIO_CNT_LVALUE |
eaf8b698 |
1713 | PerlSIO_set_cnt(stdio,cnt); |
9e353e3b |
1714 | #else /* STDIO_CNT_LVALUE */ |
1715 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) |
eaf8b698 |
1716 | PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt)); |
9e353e3b |
1717 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
eaf8b698 |
1718 | PerlProc_abort(); |
9e353e3b |
1719 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
1720 | #endif /* STDIO_CNT_LVALUE */ |
1721 | } |
1722 | |
1723 | #endif |
1724 | |
1725 | PerlIO_funcs PerlIO_stdio = { |
1726 | "stdio", |
1727 | sizeof(PerlIOStdio), |
f5b9d040 |
1728 | PERLIO_K_BUFFERED, |
9e353e3b |
1729 | PerlIOStdio_fileno, |
1730 | PerlIOStdio_fdopen, |
1731 | PerlIOStdio_open, |
1732 | PerlIOStdio_reopen, |
06da4f11 |
1733 | PerlIOBase_pushed, |
1734 | PerlIOBase_noop_ok, |
9e353e3b |
1735 | PerlIOStdio_read, |
1736 | PerlIOStdio_unread, |
1737 | PerlIOStdio_write, |
1738 | PerlIOStdio_seek, |
1739 | PerlIOStdio_tell, |
1740 | PerlIOStdio_close, |
1741 | PerlIOStdio_flush, |
06da4f11 |
1742 | PerlIOStdio_fill, |
9e353e3b |
1743 | PerlIOStdio_eof, |
1744 | PerlIOStdio_error, |
1745 | PerlIOStdio_clearerr, |
1746 | PerlIOStdio_setlinebuf, |
1747 | #ifdef FILE_base |
1748 | PerlIOStdio_get_base, |
1749 | PerlIOStdio_get_bufsiz, |
1750 | #else |
1751 | NULL, |
1752 | NULL, |
1753 | #endif |
1754 | #ifdef USE_STDIO_PTR |
1755 | PerlIOStdio_get_ptr, |
1756 | PerlIOStdio_get_cnt, |
0eb1d8a4 |
1757 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b |
1758 | PerlIOStdio_set_ptrcnt |
1759 | #else /* STDIO_PTR_LVALUE */ |
1760 | NULL |
1761 | #endif /* STDIO_PTR_LVALUE */ |
1762 | #else /* USE_STDIO_PTR */ |
1763 | NULL, |
1764 | NULL, |
1765 | NULL |
1766 | #endif /* USE_STDIO_PTR */ |
1767 | }; |
1768 | |
1769 | #undef PerlIO_exportFILE |
1770 | FILE * |
1771 | PerlIO_exportFILE(PerlIO *f, int fl) |
1772 | { |
f7e7eb72 |
1773 | FILE *stdio; |
9e353e3b |
1774 | PerlIO_flush(f); |
f7e7eb72 |
1775 | stdio = fdopen(PerlIO_fileno(f),"r+"); |
1776 | if (stdio) |
1777 | { |
1778 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f,&PerlIO_stdio,"r+",Nullch,0),PerlIOStdio); |
1779 | s->stdio = stdio; |
1780 | } |
1781 | return stdio; |
9e353e3b |
1782 | } |
1783 | |
1784 | #undef PerlIO_findFILE |
1785 | FILE * |
1786 | PerlIO_findFILE(PerlIO *f) |
1787 | { |
f7e7eb72 |
1788 | PerlIOl *l = *f; |
1789 | while (l) |
1790 | { |
1791 | if (l->tab == &PerlIO_stdio) |
1792 | { |
1793 | PerlIOStdio *s = PerlIOSelf(&l,PerlIOStdio); |
1794 | return s->stdio; |
1795 | } |
1796 | l = *PerlIONext(&l); |
1797 | } |
9e353e3b |
1798 | return PerlIO_exportFILE(f,0); |
1799 | } |
1800 | |
1801 | #undef PerlIO_releaseFILE |
1802 | void |
1803 | PerlIO_releaseFILE(PerlIO *p, FILE *f) |
1804 | { |
1805 | } |
1806 | |
1807 | /*--------------------------------------------------------------------------------------*/ |
1808 | /* perlio buffer layer */ |
1809 | |
5e2ab84b |
1810 | IV |
33af2bc7 |
1811 | PerlIOBuf_pushed(PerlIO *f, const char *mode, const char *arg, STRLEN len) |
5e2ab84b |
1812 | { |
1813 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1814 | b->posn = PerlIO_tell(PerlIONext(f)); |
33af2bc7 |
1815 | return PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b |
1816 | } |
1817 | |
9e353e3b |
1818 | PerlIO * |
06da4f11 |
1819 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b |
1820 | { |
adb71456 |
1821 | dTHX; |
9e353e3b |
1822 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f |
1823 | int init = 0; |
1824 | PerlIO *f; |
1825 | if (*mode == 'I') |
1826 | { |
1827 | init = 1; |
1828 | mode++; |
a77df51f |
1829 | } |
10cbe18a |
1830 | #if O_BINARY != O_TEXT |
a4d3c1d3 |
1831 | /* do something about failing setmode()? --jhi */ |
1832 | PerlLIO_setmode(fd, O_BINARY); |
10cbe18a |
1833 | #endif |
06da4f11 |
1834 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 |
1835 | if (f) |
1836 | { |
33af2bc7 |
1837 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode,Nullch,0),PerlIOBuf); |
f5b9d040 |
1838 | if (init && fd == 2) |
c7fc522f |
1839 | { |
f5b9d040 |
1840 | /* Initial stderr is unbuffered */ |
1841 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; |
a4d3c1d3 |
1842 | } |
5e2ab84b |
1843 | #if 0 |
4659c93f |
1844 | PerlIO_debug("PerlIOBuf_fdopen %s f=%p fd=%d m=%s fl=%08"UVxf"\n", |
f5b9d040 |
1845 | self->name,f,fd,mode,PerlIOBase(f)->flags); |
5e2ab84b |
1846 | #endif |
6f9d8c32 |
1847 | } |
9e353e3b |
1848 | return f; |
760ac839 |
1849 | } |
1850 | |
9e353e3b |
1851 | PerlIO * |
06da4f11 |
1852 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 |
1853 | { |
9e353e3b |
1854 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 |
1855 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b |
1856 | if (f) |
1857 | { |
33af2bc7 |
1858 | PerlIO_push(f,self,mode,Nullch,0); |
9e353e3b |
1859 | } |
1860 | return f; |
1861 | } |
1862 | |
1863 | int |
c3d7c7c9 |
1864 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b |
1865 | { |
c3d7c7c9 |
1866 | PerlIO *next = PerlIONext(f); |
1867 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); |
1868 | if (code = 0) |
33af2bc7 |
1869 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode,Nullch,0); |
c3d7c7c9 |
1870 | return code; |
9e353e3b |
1871 | } |
1872 | |
9e353e3b |
1873 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1874 | read or write state |
1875 | */ |
1876 | IV |
1877 | PerlIOBuf_flush(PerlIO *f) |
6f9d8c32 |
1878 | { |
9e353e3b |
1879 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1880 | int code = 0; |
1881 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1882 | { |
1883 | /* write() the buffer */ |
a5262162 |
1884 | STDCHAR *buf = b->buf; |
33af2bc7 |
1885 | STDCHAR *p = buf; |
9e353e3b |
1886 | int count; |
3789aae2 |
1887 | PerlIO *n = PerlIONext(f); |
9e353e3b |
1888 | while (p < b->ptr) |
1889 | { |
3789aae2 |
1890 | count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b |
1891 | if (count > 0) |
1892 | { |
1893 | p += count; |
1894 | } |
3789aae2 |
1895 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b |
1896 | { |
1897 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1898 | code = -1; |
1899 | break; |
1900 | } |
1901 | } |
33af2bc7 |
1902 | b->posn += (p - buf); |
9e353e3b |
1903 | } |
1904 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
6f9d8c32 |
1905 | { |
33af2bc7 |
1906 | STDCHAR *buf = PerlIO_get_base(f); |
9e353e3b |
1907 | /* Note position change */ |
33af2bc7 |
1908 | b->posn += (b->ptr - buf); |
9e353e3b |
1909 | if (b->ptr < b->end) |
1910 | { |
1911 | /* We did not consume all of it */ |
1912 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) |
1913 | { |
1914 | b->posn = PerlIO_tell(PerlIONext(f)); |
1915 | } |
1916 | } |
6f9d8c32 |
1917 | } |
9e353e3b |
1918 | b->ptr = b->end = b->buf; |
1919 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
88b61e10 |
1920 | /* FIXME: Is this right for read case ? */ |
9e353e3b |
1921 | if (PerlIO_flush(PerlIONext(f)) != 0) |
1922 | code = -1; |
1923 | return code; |
6f9d8c32 |
1924 | } |
1925 | |
06da4f11 |
1926 | IV |
1927 | PerlIOBuf_fill(PerlIO *f) |
1928 | { |
1929 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
88b61e10 |
1930 | PerlIO *n = PerlIONext(f); |
06da4f11 |
1931 | SSize_t avail; |
88b61e10 |
1932 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
1933 | pre-read data in stdio buffer to be discarded |
1934 | but this is too simplistic - as it skips _our_ hosekeeping |
1935 | and breaks tell tests. |
1936 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
1937 | { |
1938 | } |
1939 | */ |
06da4f11 |
1940 | if (PerlIO_flush(f) != 0) |
1941 | return -1; |
88b61e10 |
1942 | |
a5262162 |
1943 | if (!b->buf) |
1944 | PerlIO_get_base(f); /* allocate via vtable */ |
1945 | |
1946 | b->ptr = b->end = b->buf; |
88b61e10 |
1947 | if (PerlIO_fast_gets(n)) |
1948 | { |
1949 | /* Layer below is also buffered |
1950 | * We do _NOT_ want to call its ->Read() because that will loop |
1951 | * till it gets what we asked for which may hang on a pipe etc. |
1952 | * Instead take anything it has to hand, or ask it to fill _once_. |
1953 | */ |
1954 | avail = PerlIO_get_cnt(n); |
1955 | if (avail <= 0) |
1956 | { |
1957 | avail = PerlIO_fill(n); |
1958 | if (avail == 0) |
1959 | avail = PerlIO_get_cnt(n); |
1960 | else |
1961 | { |
1962 | if (!PerlIO_error(n) && PerlIO_eof(n)) |
1963 | avail = 0; |
1964 | } |
1965 | } |
1966 | if (avail > 0) |
1967 | { |
1968 | STDCHAR *ptr = PerlIO_get_ptr(n); |
1969 | SSize_t cnt = avail; |
1970 | if (avail > b->bufsiz) |
1971 | avail = b->bufsiz; |
1972 | Copy(ptr,b->buf,avail,STDCHAR); |
1973 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); |
1974 | } |
1975 | } |
1976 | else |
1977 | { |
1978 | avail = PerlIO_read(n,b->ptr,b->bufsiz); |
1979 | } |
06da4f11 |
1980 | if (avail <= 0) |
1981 | { |
1982 | if (avail == 0) |
1983 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
1984 | else |
1985 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1986 | return -1; |
1987 | } |
a5262162 |
1988 | b->end = b->buf+avail; |
06da4f11 |
1989 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
1990 | return 0; |
1991 | } |
1992 | |
6f9d8c32 |
1993 | SSize_t |
9e353e3b |
1994 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
1995 | { |
99efab12 |
1996 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1997 | STDCHAR *buf = (STDCHAR *) vbuf; |
6f9d8c32 |
1998 | if (f) |
1999 | { |
9e353e3b |
2000 | if (!b->ptr) |
06da4f11 |
2001 | PerlIO_get_base(f); |
9e353e3b |
2002 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf |
2003 | return 0; |
6f9d8c32 |
2004 | while (count > 0) |
2005 | { |
99efab12 |
2006 | SSize_t avail = PerlIO_get_cnt(f); |
60382766 |
2007 | SSize_t take = (count < avail) ? count : avail; |
99efab12 |
2008 | if (take > 0) |
6f9d8c32 |
2009 | { |
99efab12 |
2010 | STDCHAR *ptr = PerlIO_get_ptr(f); |
2011 | Copy(ptr,buf,take,STDCHAR); |
2012 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); |
2013 | count -= take; |
2014 | buf += take; |
6f9d8c32 |
2015 | } |
99efab12 |
2016 | if (count > 0 && avail <= 0) |
6f9d8c32 |
2017 | { |
06da4f11 |
2018 | if (PerlIO_fill(f) != 0) |
2019 | break; |
6f9d8c32 |
2020 | } |
2021 | } |
99efab12 |
2022 | return (buf - (STDCHAR *) vbuf); |
6f9d8c32 |
2023 | } |
2024 | return 0; |
2025 | } |
2026 | |
9e353e3b |
2027 | SSize_t |
2028 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
2029 | { |
9e353e3b |
2030 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2031 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2032 | SSize_t unread = 0; |
2033 | SSize_t avail; |
9e353e3b |
2034 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2035 | PerlIO_flush(f); |
06da4f11 |
2036 | if (!b->buf) |
2037 | PerlIO_get_base(f); |
9e353e3b |
2038 | if (b->buf) |
2039 | { |
2040 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2041 | { |
2042 | avail = (b->ptr - b->buf); |
9e353e3b |
2043 | } |
2044 | else |
2045 | { |
2046 | avail = b->bufsiz; |
5e2ab84b |
2047 | b->end = b->buf + avail; |
2048 | b->ptr = b->end; |
2049 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2050 | b->posn -= b->bufsiz; |
9e353e3b |
2051 | } |
5e2ab84b |
2052 | if (avail > (SSize_t) count) |
2053 | avail = count; |
9e353e3b |
2054 | if (avail > 0) |
2055 | { |
5e2ab84b |
2056 | b->ptr -= avail; |
9e353e3b |
2057 | buf -= avail; |
2058 | if (buf != b->ptr) |
2059 | { |
88b61e10 |
2060 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b |
2061 | } |
2062 | count -= avail; |
2063 | unread += avail; |
2064 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
2065 | } |
2066 | } |
2067 | return unread; |
760ac839 |
2068 | } |
2069 | |
9e353e3b |
2070 | SSize_t |
2071 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
2072 | { |
9e353e3b |
2073 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2074 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
2075 | Size_t written = 0; |
2076 | if (!b->buf) |
06da4f11 |
2077 | PerlIO_get_base(f); |
9e353e3b |
2078 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2079 | return 0; |
2080 | while (count > 0) |
2081 | { |
2082 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); |
2083 | if ((SSize_t) count < avail) |
2084 | avail = count; |
2085 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
2086 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
2087 | { |
2088 | while (avail > 0) |
2089 | { |
2090 | int ch = *buf++; |
2091 | *(b->ptr)++ = ch; |
2092 | count--; |
2093 | avail--; |
2094 | written++; |
2095 | if (ch == '\n') |
2096 | { |
2097 | PerlIO_flush(f); |
2098 | break; |
2099 | } |
2100 | } |
2101 | } |
2102 | else |
2103 | { |
2104 | if (avail) |
2105 | { |
88b61e10 |
2106 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b |
2107 | count -= avail; |
2108 | buf += avail; |
2109 | written += avail; |
2110 | b->ptr += avail; |
2111 | } |
2112 | } |
2113 | if (b->ptr >= (b->buf + b->bufsiz)) |
2114 | PerlIO_flush(f); |
2115 | } |
f5b9d040 |
2116 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2117 | PerlIO_flush(f); |
9e353e3b |
2118 | return written; |
2119 | } |
2120 | |
2121 | IV |
2122 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) |
2123 | { |
5e2ab84b |
2124 | IV code; |
2125 | if ((code = PerlIO_flush(f)) == 0) |
9e353e3b |
2126 | { |
5e2ab84b |
2127 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
9e353e3b |
2128 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2129 | code = PerlIO_seek(PerlIONext(f),offset,whence); |
2130 | if (code == 0) |
2131 | { |
2132 | b->posn = PerlIO_tell(PerlIONext(f)); |
2133 | } |
2134 | } |
2135 | return code; |
2136 | } |
2137 | |
2138 | Off_t |
2139 | PerlIOBuf_tell(PerlIO *f) |
2140 | { |
2141 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2142 | Off_t posn = b->posn; |
2143 | if (b->buf) |
2144 | posn += (b->ptr - b->buf); |
2145 | return posn; |
2146 | } |
2147 | |
2148 | IV |
2149 | PerlIOBuf_close(PerlIO *f) |
2150 | { |
5f1a76d0 |
2151 | dTHX; |
9e353e3b |
2152 | IV code = PerlIOBase_close(f); |
2153 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2154 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) |
6f9d8c32 |
2155 | { |
5f1a76d0 |
2156 | PerlMemShared_free(b->buf); |
6f9d8c32 |
2157 | } |
9e353e3b |
2158 | b->buf = NULL; |
2159 | b->ptr = b->end = b->buf; |
2160 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
2161 | return code; |
760ac839 |
2162 | } |
2163 | |
760ac839 |
2164 | void |
9e353e3b |
2165 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 |
2166 | { |
6f9d8c32 |
2167 | if (f) |
2168 | { |
9e353e3b |
2169 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 |
2170 | } |
760ac839 |
2171 | } |
2172 | |
9e353e3b |
2173 | STDCHAR * |
2174 | PerlIOBuf_get_ptr(PerlIO *f) |
2175 | { |
2176 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2177 | if (!b->buf) |
06da4f11 |
2178 | PerlIO_get_base(f); |
9e353e3b |
2179 | return b->ptr; |
2180 | } |
2181 | |
05d1247b |
2182 | SSize_t |
9e353e3b |
2183 | PerlIOBuf_get_cnt(PerlIO *f) |
2184 | { |
2185 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2186 | if (!b->buf) |
06da4f11 |
2187 | PerlIO_get_base(f); |
9e353e3b |
2188 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2189 | return (b->end - b->ptr); |
2190 | return 0; |
2191 | } |
2192 | |
2193 | STDCHAR * |
2194 | PerlIOBuf_get_base(PerlIO *f) |
2195 | { |
2196 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2197 | if (!b->buf) |
06da4f11 |
2198 | { |
5f1a76d0 |
2199 | dTHX; |
06da4f11 |
2200 | if (!b->bufsiz) |
2201 | b->bufsiz = 4096; |
5f1a76d0 |
2202 | b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR)); |
06da4f11 |
2203 | if (!b->buf) |
2204 | { |
2205 | b->buf = (STDCHAR *)&b->oneword; |
2206 | b->bufsiz = sizeof(b->oneword); |
2207 | } |
2208 | b->ptr = b->buf; |
2209 | b->end = b->ptr; |
2210 | } |
9e353e3b |
2211 | return b->buf; |
2212 | } |
2213 | |
2214 | Size_t |
2215 | PerlIOBuf_bufsiz(PerlIO *f) |
2216 | { |
2217 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2218 | if (!b->buf) |
06da4f11 |
2219 | PerlIO_get_base(f); |
9e353e3b |
2220 | return (b->end - b->buf); |
2221 | } |
2222 | |
2223 | void |
05d1247b |
2224 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b |
2225 | { |
2226 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2227 | if (!b->buf) |
06da4f11 |
2228 | PerlIO_get_base(f); |
9e353e3b |
2229 | b->ptr = ptr; |
2230 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) |
6f9d8c32 |
2231 | { |
9e353e3b |
2232 | dTHX; |
2233 | assert(PerlIO_get_cnt(f) == cnt); |
2234 | assert(b->ptr >= b->buf); |
6f9d8c32 |
2235 | } |
9e353e3b |
2236 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 |
2237 | } |
2238 | |
9e353e3b |
2239 | PerlIO_funcs PerlIO_perlio = { |
2240 | "perlio", |
2241 | sizeof(PerlIOBuf), |
f5b9d040 |
2242 | PERLIO_K_BUFFERED, |
9e353e3b |
2243 | PerlIOBase_fileno, |
2244 | PerlIOBuf_fdopen, |
2245 | PerlIOBuf_open, |
c3d7c7c9 |
2246 | PerlIOBuf_reopen, |
5e2ab84b |
2247 | PerlIOBuf_pushed, |
06da4f11 |
2248 | PerlIOBase_noop_ok, |
9e353e3b |
2249 | PerlIOBuf_read, |
2250 | PerlIOBuf_unread, |
2251 | PerlIOBuf_write, |
2252 | PerlIOBuf_seek, |
2253 | PerlIOBuf_tell, |
2254 | PerlIOBuf_close, |
2255 | PerlIOBuf_flush, |
06da4f11 |
2256 | PerlIOBuf_fill, |
9e353e3b |
2257 | PerlIOBase_eof, |
2258 | PerlIOBase_error, |
2259 | PerlIOBase_clearerr, |
2260 | PerlIOBuf_setlinebuf, |
2261 | PerlIOBuf_get_base, |
2262 | PerlIOBuf_bufsiz, |
2263 | PerlIOBuf_get_ptr, |
2264 | PerlIOBuf_get_cnt, |
2265 | PerlIOBuf_set_ptrcnt, |
2266 | }; |
2267 | |
66ecd56b |
2268 | /*--------------------------------------------------------------------------------------*/ |
5e2ab84b |
2269 | /* Temp layer to hold unread chars when cannot do it any other way */ |
2270 | |
2271 | IV |
2272 | PerlIOPending_fill(PerlIO *f) |
2273 | { |
2274 | /* Should never happen */ |
2275 | PerlIO_flush(f); |
2276 | return 0; |
2277 | } |
2278 | |
2279 | IV |
2280 | PerlIOPending_close(PerlIO *f) |
2281 | { |
2282 | /* A tad tricky - flush pops us, then we close new top */ |
2283 | PerlIO_flush(f); |
2284 | return PerlIO_close(f); |
2285 | } |
2286 | |
2287 | IV |
2288 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) |
2289 | { |
2290 | /* A tad tricky - flush pops us, then we seek new top */ |
2291 | PerlIO_flush(f); |
2292 | return PerlIO_seek(f,offset,whence); |
2293 | } |
2294 | |
2295 | |
2296 | IV |
2297 | PerlIOPending_flush(PerlIO *f) |
2298 | { |
2299 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2300 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) |
2301 | { |
5f1a76d0 |
2302 | dTHX; |
2303 | PerlMemShared_free(b->buf); |
5e2ab84b |
2304 | b->buf = NULL; |
2305 | } |
2306 | PerlIO_pop(f); |
2307 | return 0; |
2308 | } |
2309 | |
2310 | void |
2311 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
2312 | { |
2313 | if (cnt <= 0) |
2314 | { |
2315 | PerlIO_flush(f); |
2316 | } |
2317 | else |
2318 | { |
2319 | PerlIOBuf_set_ptrcnt(f,ptr,cnt); |
2320 | } |
2321 | } |
2322 | |
2323 | IV |
33af2bc7 |
2324 | PerlIOPending_pushed(PerlIO *f,const char *mode,const char *arg,STRLEN len) |
5e2ab84b |
2325 | { |
72e44f29 |
2326 | IV code = PerlIOBase_pushed(f,mode,arg,len); |
5e2ab84b |
2327 | PerlIOl *l = PerlIOBase(f); |
2328 | /* Our PerlIO_fast_gets must match what we are pushed on, |
2329 | or sv_gets() etc. get muddled when it changes mid-string |
2330 | when we auto-pop. |
2331 | */ |
72e44f29 |
2332 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) | |
2333 | (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8)); |
5e2ab84b |
2334 | return code; |
2335 | } |
2336 | |
2337 | SSize_t |
2338 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) |
2339 | { |
2340 | SSize_t avail = PerlIO_get_cnt(f); |
2341 | SSize_t got = 0; |
2342 | if (count < avail) |
2343 | avail = count; |
2344 | if (avail > 0) |
2345 | got = PerlIOBuf_read(f,vbuf,avail); |
2346 | if (got < count) |
2347 | got += PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got); |
2348 | return got; |
2349 | } |
2350 | |
2351 | |
2352 | PerlIO_funcs PerlIO_pending = { |
2353 | "pending", |
2354 | sizeof(PerlIOBuf), |
2355 | PERLIO_K_BUFFERED, |
2356 | PerlIOBase_fileno, |
2357 | NULL, |
2358 | NULL, |
2359 | NULL, |
2360 | PerlIOPending_pushed, |
2361 | PerlIOBase_noop_ok, |
2362 | PerlIOPending_read, |
2363 | PerlIOBuf_unread, |
2364 | PerlIOBuf_write, |
2365 | PerlIOPending_seek, |
2366 | PerlIOBuf_tell, |
2367 | PerlIOPending_close, |
2368 | PerlIOPending_flush, |
2369 | PerlIOPending_fill, |
2370 | PerlIOBase_eof, |
2371 | PerlIOBase_error, |
2372 | PerlIOBase_clearerr, |
2373 | PerlIOBuf_setlinebuf, |
2374 | PerlIOBuf_get_base, |
2375 | PerlIOBuf_bufsiz, |
2376 | PerlIOBuf_get_ptr, |
2377 | PerlIOBuf_get_cnt, |
2378 | PerlIOPending_set_ptrcnt, |
2379 | }; |
2380 | |
2381 | |
2382 | |
2383 | /*--------------------------------------------------------------------------------------*/ |
99efab12 |
2384 | /* crlf - translation |
2385 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries |
60382766 |
2386 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 |
2387 | On write translate "\n" to CR,LF |
66ecd56b |
2388 | */ |
2389 | |
99efab12 |
2390 | typedef struct |
2391 | { |
2392 | PerlIOBuf base; /* PerlIOBuf stuff */ |
60382766 |
2393 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 |
2394 | } PerlIOCrlf; |
2395 | |
f5b9d040 |
2396 | IV |
33af2bc7 |
2397 | PerlIOCrlf_pushed(PerlIO *f, const char *mode,const char *arg,STRLEN len) |
f5b9d040 |
2398 | { |
2399 | IV code; |
2400 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; |
33af2bc7 |
2401 | code = PerlIOBuf_pushed(f,mode,arg,len); |
5e2ab84b |
2402 | #if 0 |
4659c93f |
2403 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n", |
f5b9d040 |
2404 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
a4d3c1d3 |
2405 | PerlIOBase(f)->flags); |
5e2ab84b |
2406 | #endif |
f5b9d040 |
2407 | return code; |
2408 | } |
2409 | |
2410 | |
99efab12 |
2411 | SSize_t |
2412 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) |
2413 | { |
60382766 |
2414 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 |
2415 | if (c->nl) |
2416 | { |
2417 | *(c->nl) = 0xd; |
2418 | c->nl = NULL; |
2419 | } |
f5b9d040 |
2420 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2421 | return PerlIOBuf_unread(f,vbuf,count); |
2422 | else |
99efab12 |
2423 | { |
a4d3c1d3 |
2424 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
f5b9d040 |
2425 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2426 | SSize_t unread = 0; |
2427 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2428 | PerlIO_flush(f); |
2429 | if (!b->buf) |
2430 | PerlIO_get_base(f); |
2431 | if (b->buf) |
99efab12 |
2432 | { |
f5b9d040 |
2433 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 |
2434 | { |
f5b9d040 |
2435 | b->end = b->ptr = b->buf + b->bufsiz; |
2436 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
5e2ab84b |
2437 | b->posn -= b->bufsiz; |
f5b9d040 |
2438 | } |
2439 | while (count > 0 && b->ptr > b->buf) |
2440 | { |
2441 | int ch = *--buf; |
2442 | if (ch == '\n') |
99efab12 |
2443 | { |
f5b9d040 |
2444 | if (b->ptr - 2 >= b->buf) |
2445 | { |
2446 | *--(b->ptr) = 0xa; |
2447 | *--(b->ptr) = 0xd; |
2448 | unread++; |
2449 | count--; |
2450 | } |
2451 | else |
2452 | { |
2453 | buf++; |
2454 | break; |
2455 | } |
99efab12 |
2456 | } |
2457 | else |
2458 | { |
f5b9d040 |
2459 | *--(b->ptr) = ch; |
2460 | unread++; |
2461 | count--; |
99efab12 |
2462 | } |
2463 | } |
99efab12 |
2464 | } |
f5b9d040 |
2465 | return unread; |
99efab12 |
2466 | } |
99efab12 |
2467 | } |
2468 | |
2469 | SSize_t |
2470 | PerlIOCrlf_get_cnt(PerlIO *f) |
2471 | { |
2472 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2473 | if (!b->buf) |
2474 | PerlIO_get_base(f); |
2475 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2476 | { |
2477 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
f5b9d040 |
2478 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 |
2479 | { |
2480 | STDCHAR *nl = b->ptr; |
60382766 |
2481 | scan: |
99efab12 |
2482 | while (nl < b->end && *nl != 0xd) |
2483 | nl++; |
2484 | if (nl < b->end && *nl == 0xd) |
2485 | { |
60382766 |
2486 | test: |
99efab12 |
2487 | if (nl+1 < b->end) |
2488 | { |
2489 | if (nl[1] == 0xa) |
2490 | { |
2491 | *nl = '\n'; |
60382766 |
2492 | c->nl = nl; |
99efab12 |
2493 | } |
60382766 |
2494 | else |
99efab12 |
2495 | { |
2496 | /* Not CR,LF but just CR */ |
2497 | nl++; |
60382766 |
2498 | goto scan; |
99efab12 |
2499 | } |
2500 | } |
2501 | else |
2502 | { |
60382766 |
2503 | /* Blast - found CR as last char in buffer */ |
99efab12 |
2504 | if (b->ptr < nl) |
2505 | { |
2506 | /* They may not care, defer work as long as possible */ |
60382766 |
2507 | return (nl - b->ptr); |
99efab12 |
2508 | } |
2509 | else |
2510 | { |
2511 | int code; |
2512 | dTHX; |
99efab12 |
2513 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
2514 | b->buf++; /* Leave space an front of buffer */ |
2515 | b->bufsiz--; /* Buffer is thus smaller */ |
2516 | code = PerlIO_fill(f); /* Fetch some more */ |
2517 | b->bufsiz++; /* Restore size for next time */ |
2518 | b->buf--; /* Point at space */ |
2519 | b->ptr = nl = b->buf; /* Which is what we hand off */ |
2520 | b->posn--; /* Buffer starts here */ |
2521 | *nl = 0xd; /* Fill in the CR */ |
60382766 |
2522 | if (code == 0) |
99efab12 |
2523 | goto test; /* fill() call worked */ |
2524 | /* CR at EOF - just fall through */ |
2525 | } |
2526 | } |
60382766 |
2527 | } |
2528 | } |
99efab12 |
2529 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
2530 | } |
2531 | return 0; |
2532 | } |
2533 | |
2534 | void |
2535 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
2536 | { |
2537 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2538 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
f5b9d040 |
2539 | IV flags = PerlIOBase(f)->flags; |
99efab12 |
2540 | if (!b->buf) |
2541 | PerlIO_get_base(f); |
2542 | if (!ptr) |
60382766 |
2543 | { |
63dbdb06 |
2544 | if (c->nl) |
2545 | ptr = c->nl+1; |
2546 | else |
2547 | { |
2548 | ptr = b->end; |
f5b9d040 |
2549 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 |
2550 | ptr--; |
2551 | } |
2552 | ptr -= cnt; |
60382766 |
2553 | } |
2554 | else |
2555 | { |
63dbdb06 |
2556 | /* Test code - delete when it works ... */ |
2557 | STDCHAR *chk; |
2558 | if (c->nl) |
2559 | chk = c->nl+1; |
2560 | else |
2561 | { |
2562 | chk = b->end; |
f5b9d040 |
2563 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 |
2564 | chk--; |
2565 | } |
2566 | chk -= cnt; |
a4d3c1d3 |
2567 | |
63dbdb06 |
2568 | if (ptr != chk) |
2569 | { |
2570 | dTHX; |
4659c93f |
2571 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d", |
a4d3c1d3 |
2572 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 |
2573 | } |
60382766 |
2574 | } |
99efab12 |
2575 | if (c->nl) |
2576 | { |
2577 | if (ptr > c->nl) |
2578 | { |
2579 | /* They have taken what we lied about */ |
2580 | *(c->nl) = 0xd; |
2581 | c->nl = NULL; |
2582 | ptr++; |
60382766 |
2583 | } |
99efab12 |
2584 | } |
2585 | b->ptr = ptr; |
2586 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2587 | } |
2588 | |
2589 | SSize_t |
2590 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) |
2591 | { |
f5b9d040 |
2592 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2593 | return PerlIOBuf_write(f,vbuf,count); |
2594 | else |
99efab12 |
2595 | { |
a4d3c1d3 |
2596 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
f5b9d040 |
2597 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
2598 | const STDCHAR *ebuf = buf+count; |
2599 | if (!b->buf) |
2600 | PerlIO_get_base(f); |
2601 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2602 | return 0; |
2603 | while (buf < ebuf) |
99efab12 |
2604 | { |
f5b9d040 |
2605 | STDCHAR *eptr = b->buf+b->bufsiz; |
2606 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
2607 | while (buf < ebuf && b->ptr < eptr) |
99efab12 |
2608 | { |
f5b9d040 |
2609 | if (*buf == '\n') |
60382766 |
2610 | { |
f5b9d040 |
2611 | if ((b->ptr + 2) > eptr) |
60382766 |
2612 | { |
f5b9d040 |
2613 | /* Not room for both */ |
60382766 |
2614 | PerlIO_flush(f); |
2615 | break; |
2616 | } |
f5b9d040 |
2617 | else |
2618 | { |
2619 | *(b->ptr)++ = 0xd; /* CR */ |
2620 | *(b->ptr)++ = 0xa; /* LF */ |
2621 | buf++; |
2622 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
2623 | { |
2624 | PerlIO_flush(f); |
2625 | break; |
2626 | } |
2627 | } |
2628 | } |
2629 | else |
2630 | { |
2631 | int ch = *buf++; |
2632 | *(b->ptr)++ = ch; |
2633 | } |
2634 | if (b->ptr >= eptr) |
2635 | { |
2636 | PerlIO_flush(f); |
2637 | break; |
99efab12 |
2638 | } |
99efab12 |
2639 | } |
2640 | } |
f5b9d040 |
2641 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2642 | PerlIO_flush(f); |
2643 | return (buf - (STDCHAR *) vbuf); |
99efab12 |
2644 | } |
99efab12 |
2645 | } |
2646 | |
2647 | IV |
2648 | PerlIOCrlf_flush(PerlIO *f) |
2649 | { |
2650 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
2651 | if (c->nl) |
2652 | { |
99efab12 |
2653 | *(c->nl) = 0xd; |
60382766 |
2654 | c->nl = NULL; |
99efab12 |
2655 | } |
2656 | return PerlIOBuf_flush(f); |
2657 | } |
2658 | |
66ecd56b |
2659 | PerlIO_funcs PerlIO_crlf = { |
2660 | "crlf", |
99efab12 |
2661 | sizeof(PerlIOCrlf), |
f5b9d040 |
2662 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
66ecd56b |
2663 | PerlIOBase_fileno, |
2664 | PerlIOBuf_fdopen, |
2665 | PerlIOBuf_open, |
2666 | PerlIOBuf_reopen, |
f5b9d040 |
2667 | PerlIOCrlf_pushed, |
99efab12 |
2668 | PerlIOBase_noop_ok, /* popped */ |
2669 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ |
2670 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ |
2671 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ |
66ecd56b |
2672 | PerlIOBuf_seek, |
2673 | PerlIOBuf_tell, |
2674 | PerlIOBuf_close, |
99efab12 |
2675 | PerlIOCrlf_flush, |
66ecd56b |
2676 | PerlIOBuf_fill, |
2677 | PerlIOBase_eof, |
2678 | PerlIOBase_error, |
2679 | PerlIOBase_clearerr, |
2680 | PerlIOBuf_setlinebuf, |
2681 | PerlIOBuf_get_base, |
2682 | PerlIOBuf_bufsiz, |
2683 | PerlIOBuf_get_ptr, |
99efab12 |
2684 | PerlIOCrlf_get_cnt, |
2685 | PerlIOCrlf_set_ptrcnt, |
66ecd56b |
2686 | }; |
2687 | |
06da4f11 |
2688 | #ifdef HAS_MMAP |
2689 | /*--------------------------------------------------------------------------------------*/ |
2690 | /* mmap as "buffer" layer */ |
2691 | |
2692 | typedef struct |
2693 | { |
2694 | PerlIOBuf base; /* PerlIOBuf stuff */ |
c3d7c7c9 |
2695 | Mmap_t mptr; /* Mapped address */ |
06da4f11 |
2696 | Size_t len; /* mapped length */ |
2697 | STDCHAR *bbuf; /* malloced buffer if map fails */ |
2698 | } PerlIOMmap; |
2699 | |
c3d7c7c9 |
2700 | static size_t page_size = 0; |
2701 | |
06da4f11 |
2702 | IV |
2703 | PerlIOMmap_map(PerlIO *f) |
2704 | { |
68d873c6 |
2705 | dTHX; |
06da4f11 |
2706 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2707 | PerlIOBuf *b = &m->base; |
2708 | IV flags = PerlIOBase(f)->flags; |
2709 | IV code = 0; |
2710 | if (m->len) |
2711 | abort(); |
2712 | if (flags & PERLIO_F_CANREAD) |
2713 | { |
2714 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2715 | int fd = PerlIO_fileno(f); |
2716 | struct stat st; |
2717 | code = fstat(fd,&st); |
2718 | if (code == 0 && S_ISREG(st.st_mode)) |
2719 | { |
2720 | SSize_t len = st.st_size - b->posn; |
2721 | if (len > 0) |
2722 | { |
c3d7c7c9 |
2723 | Off_t posn; |
68d873c6 |
2724 | if (!page_size) { |
2725 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) |
2726 | { |
2727 | SETERRNO(0,SS$_NORMAL); |
2728 | # ifdef _SC_PAGESIZE |
2729 | page_size = sysconf(_SC_PAGESIZE); |
2730 | # else |
2731 | page_size = sysconf(_SC_PAGE_SIZE); |
14aaf8e8 |
2732 | # endif |
68d873c6 |
2733 | if ((long)page_size < 0) { |
2734 | if (errno) { |
2735 | SV *error = ERRSV; |
2736 | char *msg; |
2737 | STRLEN n_a; |
2738 | (void)SvUPGRADE(error, SVt_PV); |
2739 | msg = SvPVx(error, n_a); |
14aaf8e8 |
2740 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 |
2741 | } |
2742 | else |
14aaf8e8 |
2743 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 |
2744 | } |
2745 | } |
2746 | #else |
2747 | # ifdef HAS_GETPAGESIZE |
c3d7c7c9 |
2748 | page_size = getpagesize(); |
68d873c6 |
2749 | # else |
2750 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) |
2751 | page_size = PAGESIZE; /* compiletime, bad */ |
2752 | # endif |
2753 | # endif |
2754 | #endif |
2755 | if ((IV)page_size <= 0) |
14aaf8e8 |
2756 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 |
2757 | } |
c3d7c7c9 |
2758 | if (b->posn < 0) |
2759 | { |
2760 | /* This is a hack - should never happen - open should have set it ! */ |
2761 | b->posn = PerlIO_tell(PerlIONext(f)); |
2762 | } |
2763 | posn = (b->posn / page_size) * page_size; |
2764 | len = st.st_size - posn; |
a5262162 |
2765 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); |
c3d7c7c9 |
2766 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 |
2767 | { |
a5262162 |
2768 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 |
2769 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 |
2770 | #endif |
a5262162 |
2771 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
2772 | madvise(m->mptr, len, MADV_WILLNEED); |
2773 | #endif |
c3d7c7c9 |
2774 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
2775 | b->end = ((STDCHAR *)m->mptr) + len; |
2776 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); |
2777 | b->ptr = b->buf; |
2778 | m->len = len; |
06da4f11 |
2779 | } |
2780 | else |
2781 | { |
2782 | b->buf = NULL; |
2783 | } |
2784 | } |
2785 | else |
2786 | { |
2787 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; |
2788 | b->buf = NULL; |
2789 | b->ptr = b->end = b->ptr; |
2790 | code = -1; |
2791 | } |
2792 | } |
2793 | } |
2794 | return code; |
2795 | } |
2796 | |
2797 | IV |
2798 | PerlIOMmap_unmap(PerlIO *f) |
2799 | { |
2800 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2801 | PerlIOBuf *b = &m->base; |
2802 | IV code = 0; |
2803 | if (m->len) |
2804 | { |
2805 | if (b->buf) |
2806 | { |
c3d7c7c9 |
2807 | code = munmap(m->mptr, m->len); |
2808 | b->buf = NULL; |
2809 | m->len = 0; |
2810 | m->mptr = NULL; |
06da4f11 |
2811 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
2812 | code = -1; |
06da4f11 |
2813 | } |
2814 | b->ptr = b->end = b->buf; |
2815 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
2816 | } |
2817 | return code; |
2818 | } |
2819 | |
2820 | STDCHAR * |
2821 | PerlIOMmap_get_base(PerlIO *f) |
2822 | { |
2823 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2824 | PerlIOBuf *b = &m->base; |
2825 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
2826 | { |
2827 | /* Already have a readbuffer in progress */ |
2828 | return b->buf; |
2829 | } |
2830 | if (b->buf) |
2831 | { |
2832 | /* We have a write buffer or flushed PerlIOBuf read buffer */ |
2833 | m->bbuf = b->buf; /* save it in case we need it again */ |
2834 | b->buf = NULL; /* Clear to trigger below */ |
2835 | } |
2836 | if (!b->buf) |
2837 | { |
2838 | PerlIOMmap_map(f); /* Try and map it */ |
2839 | if (!b->buf) |
2840 | { |
2841 | /* Map did not work - recover PerlIOBuf buffer if we have one */ |
2842 | b->buf = m->bbuf; |
2843 | } |
2844 | } |
2845 | b->ptr = b->end = b->buf; |
2846 | if (b->buf) |
2847 | return b->buf; |
2848 | return PerlIOBuf_get_base(f); |
2849 | } |
2850 | |
2851 | SSize_t |
2852 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) |
2853 | { |
2854 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2855 | PerlIOBuf *b = &m->base; |
2856 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2857 | PerlIO_flush(f); |
2858 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) |
2859 | { |
2860 | b->ptr -= count; |
2861 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
2862 | return count; |
2863 | } |
2864 | if (m->len) |
2865 | { |
4a4a6116 |
2866 | /* Loose the unwritable mapped buffer */ |
06da4f11 |
2867 | PerlIO_flush(f); |
c3d7c7c9 |
2868 | /* If flush took the "buffer" see if we have one from before */ |
2869 | if (!b->buf && m->bbuf) |
2870 | b->buf = m->bbuf; |
2871 | if (!b->buf) |
2872 | { |
2873 | PerlIOBuf_get_base(f); |
2874 | m->bbuf = b->buf; |
2875 | } |
06da4f11 |
2876 | } |
5e2ab84b |
2877 | return PerlIOBuf_unread(f,vbuf,count); |
06da4f11 |
2878 | } |
2879 | |
2880 | SSize_t |
2881 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) |
2882 | { |
2883 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2884 | PerlIOBuf *b = &m->base; |
2885 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) |
2886 | { |
2887 | /* No, or wrong sort of, buffer */ |
2888 | if (m->len) |
2889 | { |
2890 | if (PerlIOMmap_unmap(f) != 0) |
2891 | return 0; |
2892 | } |
2893 | /* If unmap took the "buffer" see if we have one from before */ |
2894 | if (!b->buf && m->bbuf) |
2895 | b->buf = m->bbuf; |
2896 | if (!b->buf) |
2897 | { |
2898 | PerlIOBuf_get_base(f); |
2899 | m->bbuf = b->buf; |
2900 | } |
2901 | } |
2902 | return PerlIOBuf_write(f,vbuf,count); |
2903 | } |
2904 | |
2905 | IV |
2906 | PerlIOMmap_flush(PerlIO *f) |
2907 | { |
2908 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2909 | PerlIOBuf *b = &m->base; |
2910 | IV code = PerlIOBuf_flush(f); |
2911 | /* Now we are "synced" at PerlIOBuf level */ |
2912 | if (b->buf) |
2913 | { |
2914 | if (m->len) |
2915 | { |
2916 | /* Unmap the buffer */ |
2917 | if (PerlIOMmap_unmap(f) != 0) |
2918 | code = -1; |
2919 | } |
2920 | else |
2921 | { |
2922 | /* We seem to have a PerlIOBuf buffer which was not mapped |
2923 | * remember it in case we need one later |
2924 | */ |
2925 | m->bbuf = b->buf; |
2926 | } |
2927 | } |
06da4f11 |
2928 | return code; |
2929 | } |
2930 | |
2931 | IV |
2932 | PerlIOMmap_fill(PerlIO *f) |
2933 | { |
2934 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2935 | IV code = PerlIO_flush(f); |
06da4f11 |
2936 | if (code == 0 && !b->buf) |
2937 | { |
2938 | code = PerlIOMmap_map(f); |
06da4f11 |
2939 | } |
2940 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
2941 | { |
2942 | code = PerlIOBuf_fill(f); |
06da4f11 |
2943 | } |
2944 | return code; |
2945 | } |
2946 | |
2947 | IV |
2948 | PerlIOMmap_close(PerlIO *f) |
2949 | { |
2950 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2951 | PerlIOBuf *b = &m->base; |
2952 | IV code = PerlIO_flush(f); |
2953 | if (m->bbuf) |
2954 | { |
2955 | b->buf = m->bbuf; |
2956 | m->bbuf = NULL; |
2957 | b->ptr = b->end = b->buf; |
2958 | } |
2959 | if (PerlIOBuf_close(f) != 0) |
2960 | code = -1; |
06da4f11 |
2961 | return code; |
2962 | } |
2963 | |
2964 | |
2965 | PerlIO_funcs PerlIO_mmap = { |
2966 | "mmap", |
2967 | sizeof(PerlIOMmap), |
f5b9d040 |
2968 | PERLIO_K_BUFFERED, |
06da4f11 |
2969 | PerlIOBase_fileno, |
2970 | PerlIOBuf_fdopen, |
2971 | PerlIOBuf_open, |
c3d7c7c9 |
2972 | PerlIOBuf_reopen, |
5e2ab84b |
2973 | PerlIOBuf_pushed, |
06da4f11 |
2974 | PerlIOBase_noop_ok, |
2975 | PerlIOBuf_read, |
2976 | PerlIOMmap_unread, |
2977 | PerlIOMmap_write, |
2978 | PerlIOBuf_seek, |
2979 | PerlIOBuf_tell, |
2980 | PerlIOBuf_close, |
2981 | PerlIOMmap_flush, |
2982 | PerlIOMmap_fill, |
2983 | PerlIOBase_eof, |
2984 | PerlIOBase_error, |
2985 | PerlIOBase_clearerr, |
2986 | PerlIOBuf_setlinebuf, |
2987 | PerlIOMmap_get_base, |
2988 | PerlIOBuf_bufsiz, |
2989 | PerlIOBuf_get_ptr, |
2990 | PerlIOBuf_get_cnt, |
2991 | PerlIOBuf_set_ptrcnt, |
2992 | }; |
2993 | |
2994 | #endif /* HAS_MMAP */ |
2995 | |
9e353e3b |
2996 | void |
2997 | PerlIO_init(void) |
760ac839 |
2998 | { |
9e353e3b |
2999 | if (!_perlio) |
6f9d8c32 |
3000 | { |
be696b0a |
3001 | #ifndef WIN32 |
9e353e3b |
3002 | atexit(&PerlIO_cleanup); |
be696b0a |
3003 | #endif |
6f9d8c32 |
3004 | } |
760ac839 |
3005 | } |
3006 | |
9e353e3b |
3007 | #undef PerlIO_stdin |
3008 | PerlIO * |
3009 | PerlIO_stdin(void) |
3010 | { |
3011 | if (!_perlio) |
f3862f8b |
3012 | PerlIO_stdstreams(); |
05d1247b |
3013 | return &_perlio[1]; |
9e353e3b |
3014 | } |
3015 | |
3016 | #undef PerlIO_stdout |
3017 | PerlIO * |
3018 | PerlIO_stdout(void) |
3019 | { |
3020 | if (!_perlio) |
f3862f8b |
3021 | PerlIO_stdstreams(); |
05d1247b |
3022 | return &_perlio[2]; |
9e353e3b |
3023 | } |
3024 | |
3025 | #undef PerlIO_stderr |
3026 | PerlIO * |
3027 | PerlIO_stderr(void) |
3028 | { |
3029 | if (!_perlio) |
f3862f8b |
3030 | PerlIO_stdstreams(); |
05d1247b |
3031 | return &_perlio[3]; |
9e353e3b |
3032 | } |
3033 | |
3034 | /*--------------------------------------------------------------------------------------*/ |
3035 | |
3036 | #undef PerlIO_getname |
3037 | char * |
3038 | PerlIO_getname(PerlIO *f, char *buf) |
3039 | { |
3040 | dTHX; |
3041 | Perl_croak(aTHX_ "Don't know how to get file name"); |
3042 | return NULL; |
3043 | } |
3044 | |
3045 | |
3046 | /*--------------------------------------------------------------------------------------*/ |
3047 | /* Functions which can be called on any kind of PerlIO implemented |
3048 | in terms of above |
3049 | */ |
3050 | |
3051 | #undef PerlIO_getc |
6f9d8c32 |
3052 | int |
9e353e3b |
3053 | PerlIO_getc(PerlIO *f) |
760ac839 |
3054 | { |
313ca112 |
3055 | STDCHAR buf[1]; |
3056 | SSize_t count = PerlIO_read(f,buf,1); |
9e353e3b |
3057 | if (count == 1) |
313ca112 |
3058 | { |
3059 | return (unsigned char) buf[0]; |
3060 | } |
3061 | return EOF; |
3062 | } |
3063 | |
3064 | #undef PerlIO_ungetc |
3065 | int |
3066 | PerlIO_ungetc(PerlIO *f, int ch) |
3067 | { |
3068 | if (ch != EOF) |
3069 | { |
3070 | STDCHAR buf = ch; |
3071 | if (PerlIO_unread(f,&buf,1) == 1) |
3072 | return ch; |
3073 | } |
3074 | return EOF; |
760ac839 |
3075 | } |
3076 | |
9e353e3b |
3077 | #undef PerlIO_putc |
3078 | int |
3079 | PerlIO_putc(PerlIO *f, int ch) |
760ac839 |
3080 | { |
9e353e3b |
3081 | STDCHAR buf = ch; |
3082 | return PerlIO_write(f,&buf,1); |
760ac839 |
3083 | } |
3084 | |
9e353e3b |
3085 | #undef PerlIO_puts |
760ac839 |
3086 | int |
9e353e3b |
3087 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 |
3088 | { |
9e353e3b |
3089 | STRLEN len = strlen(s); |
3090 | return PerlIO_write(f,s,len); |
760ac839 |
3091 | } |
3092 | |
3093 | #undef PerlIO_rewind |
3094 | void |
c78749f2 |
3095 | PerlIO_rewind(PerlIO *f) |
760ac839 |
3096 | { |
6f9d8c32 |
3097 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b |
3098 | PerlIO_clearerr(f); |
6f9d8c32 |
3099 | } |
3100 | |
3101 | #undef PerlIO_vprintf |
3102 | int |
3103 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) |
3104 | { |
3105 | dTHX; |
bb9950b7 |
3106 | SV *sv = newSVpvn("",0); |
6f9d8c32 |
3107 | char *s; |
3108 | STRLEN len; |
2cc61e15 |
3109 | #ifdef NEED_VA_COPY |
3110 | va_list apc; |
3111 | Perl_va_copy(ap, apc); |
3112 | sv_vcatpvf(sv, fmt, &apc); |
3113 | #else |
6f9d8c32 |
3114 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 |
3115 | #endif |
6f9d8c32 |
3116 | s = SvPV(sv,len); |
bb9950b7 |
3117 | return PerlIO_write(f,s,len); |
760ac839 |
3118 | } |
3119 | |
3120 | #undef PerlIO_printf |
6f9d8c32 |
3121 | int |
760ac839 |
3122 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 |
3123 | { |
3124 | va_list ap; |
3125 | int result; |
760ac839 |
3126 | va_start(ap,fmt); |
6f9d8c32 |
3127 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 |
3128 | va_end(ap); |
3129 | return result; |
3130 | } |
3131 | |
3132 | #undef PerlIO_stdoutf |
6f9d8c32 |
3133 | int |
760ac839 |
3134 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 |
3135 | { |
3136 | va_list ap; |
3137 | int result; |
760ac839 |
3138 | va_start(ap,fmt); |
760ac839 |
3139 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
3140 | va_end(ap); |
3141 | return result; |
3142 | } |
3143 | |
3144 | #undef PerlIO_tmpfile |
3145 | PerlIO * |
c78749f2 |
3146 | PerlIO_tmpfile(void) |
760ac839 |
3147 | { |
b1ef6e3b |
3148 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 |
3149 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
adb71456 |
3150 | dTHX; |
83b075c3 |
3151 | PerlIO *f = NULL; |
eaf8b698 |
3152 | FILE *stdio = PerlSIO_tmpfile(); |
83b075c3 |
3153 | if (stdio) |
3154 | { |
33af2bc7 |
3155 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"w+",Nullch,0),PerlIOStdio); |
83b075c3 |
3156 | s->stdio = stdio; |
3157 | } |
3158 | return f; |
3159 | #else |
3160 | dTHX; |
6f9d8c32 |
3161 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
3162 | int fd = mkstemp(SvPVX(sv)); |
3163 | PerlIO *f = NULL; |
3164 | if (fd >= 0) |
3165 | { |
b1ef6e3b |
3166 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 |
3167 | if (f) |
3168 | { |
9e353e3b |
3169 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 |
3170 | } |
00b02797 |
3171 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 |
3172 | SvREFCNT_dec(sv); |
3173 | } |
3174 | return f; |
83b075c3 |
3175 | #endif |
760ac839 |
3176 | } |
3177 | |
6f9d8c32 |
3178 | #undef HAS_FSETPOS |
3179 | #undef HAS_FGETPOS |
3180 | |
760ac839 |
3181 | #endif /* USE_SFIO */ |
3182 | #endif /* PERLIO_IS_STDIO */ |
3183 | |
9e353e3b |
3184 | /*======================================================================================*/ |
3185 | /* Now some functions in terms of above which may be needed even if |
3186 | we are not in true PerlIO mode |
3187 | */ |
3188 | |
760ac839 |
3189 | #ifndef HAS_FSETPOS |
3190 | #undef PerlIO_setpos |
3191 | int |
766a733e |
3192 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 |
3193 | { |
766a733e |
3194 | dTHX; |
3195 | if (SvOK(pos)) |
3196 | { |
3197 | STRLEN len; |
3198 | Off_t *posn = (Off_t *) SvPV(pos,len); |
3199 | if (f && len == sizeof(Off_t)) |
3200 | return PerlIO_seek(f,*posn,SEEK_SET); |
3201 | } |
3202 | errno = EINVAL; |
3203 | return -1; |
760ac839 |
3204 | } |
c411622e |
3205 | #else |
c411622e |
3206 | #undef PerlIO_setpos |
3207 | int |
766a733e |
3208 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e |
3209 | { |
766a733e |
3210 | dTHX; |
3211 | if (SvOK(pos)) |
3212 | { |
3213 | STRLEN len; |
3214 | Fpos_t *fpos = (Fpos_t *) SvPV(pos,len); |
3215 | if (f && len == sizeof(Fpos_t)) |
3216 | { |
2d4389e4 |
3217 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e |
3218 | return fsetpos64(f, fpos); |
d9b3e12d |
3219 | #else |
766a733e |
3220 | return fsetpos(f, fpos); |
d9b3e12d |
3221 | #endif |
766a733e |
3222 | } |
3223 | } |
3224 | errno = EINVAL; |
3225 | return -1; |
c411622e |
3226 | } |
3227 | #endif |
760ac839 |
3228 | |
3229 | #ifndef HAS_FGETPOS |
3230 | #undef PerlIO_getpos |
3231 | int |
766a733e |
3232 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 |
3233 | { |
766a733e |
3234 | dTHX; |
3235 | Off_t posn = PerlIO_tell(f); |
3236 | sv_setpvn(pos,(char *)&posn,sizeof(posn)); |
3237 | return (posn == (Off_t)-1) ? -1 : 0; |
760ac839 |
3238 | } |
c411622e |
3239 | #else |
c411622e |
3240 | #undef PerlIO_getpos |
3241 | int |
766a733e |
3242 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e |
3243 | { |
766a733e |
3244 | dTHX; |
3245 | Fpos_t fpos; |
3246 | int code; |
2d4389e4 |
3247 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
766a733e |
3248 | code = fgetpos64(f, &fpos); |
d9b3e12d |
3249 | #else |
766a733e |
3250 | code = fgetpos(f, &fpos); |
d9b3e12d |
3251 | #endif |
766a733e |
3252 | sv_setpvn(pos,(char *)&fpos,sizeof(fpos)); |
3253 | return code; |
c411622e |
3254 | } |
3255 | #endif |
760ac839 |
3256 | |
3257 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) |
3258 | |
3259 | int |
c78749f2 |
3260 | vprintf(char *pat, char *args) |
662a7e3f |
3261 | { |
3262 | _doprnt(pat, args, stdout); |
3263 | return 0; /* wrong, but perl doesn't use the return value */ |
3264 | } |
3265 | |
3266 | int |
c78749f2 |
3267 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 |
3268 | { |
3269 | _doprnt(pat, args, fd); |
3270 | return 0; /* wrong, but perl doesn't use the return value */ |
3271 | } |
3272 | |
3273 | #endif |
3274 | |
3275 | #ifndef PerlIO_vsprintf |
6f9d8c32 |
3276 | int |
8ac85365 |
3277 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 |
3278 | { |
3279 | int val = vsprintf(s, fmt, ap); |
3280 | if (n >= 0) |
3281 | { |
8c86a920 |
3282 | if (strlen(s) >= (STRLEN)n) |
760ac839 |
3283 | { |
bf49b057 |
3284 | dTHX; |
fb4a9925 |
3285 | (void)PerlIO_puts(Perl_error_log, |
3286 | "panic: sprintf overflow - memory corrupted!\n"); |
bf49b057 |
3287 | my_exit(1); |
760ac839 |
3288 | } |
3289 | } |
3290 | return val; |
3291 | } |
3292 | #endif |
3293 | |
3294 | #ifndef PerlIO_sprintf |
6f9d8c32 |
3295 | int |
760ac839 |
3296 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 |
3297 | { |
3298 | va_list ap; |
3299 | int result; |
760ac839 |
3300 | va_start(ap,fmt); |
760ac839 |
3301 | result = PerlIO_vsprintf(s, n, fmt, ap); |
3302 | va_end(ap); |
3303 | return result; |
3304 | } |
3305 | #endif |
3306 | |
c5be433b |
3307 | |