Commit | Line | Data |
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760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | #define VOIDUSED 1 | |
12ae5dfc JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
0f4eea8f | 23 | * which are not #defined in iperlsys.h. |
6f9d8c32 | 24 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
25 | */ |
26 | ||
27 | #include "EXTERN.h" | |
864dbfa3 | 28 | #define PERL_IN_PERLIO_C |
760ac839 LW |
29 | #include "perl.h" |
30 | ||
32e30700 GS |
31 | #if !defined(PERL_IMPLICIT_SYS) |
32 | ||
6f9d8c32 | 33 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
34 | |
35 | void | |
8ac85365 | 36 | PerlIO_init(void) |
760ac839 | 37 | { |
6f9d8c32 | 38 | /* Does nothing (yet) except force this file to be included |
760ac839 | 39 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
40 | of other functions that may be required by loadable |
41 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
42 | */ |
43 | } | |
44 | ||
33dcbb9a | 45 | #undef PerlIO_tmpfile |
46 | PerlIO * | |
8ac85365 | 47 | PerlIO_tmpfile(void) |
33dcbb9a | 48 | { |
49 | return tmpfile(); | |
50 | } | |
51 | ||
760ac839 LW |
52 | #else /* PERLIO_IS_STDIO */ |
53 | ||
54 | #ifdef USE_SFIO | |
55 | ||
56 | #undef HAS_FSETPOS | |
57 | #undef HAS_FGETPOS | |
58 | ||
6f9d8c32 | 59 | /* This section is just to make sure these functions |
760ac839 LW |
60 | get pulled in from libsfio.a |
61 | */ | |
62 | ||
63 | #undef PerlIO_tmpfile | |
64 | PerlIO * | |
c78749f2 | 65 | PerlIO_tmpfile(void) |
760ac839 LW |
66 | { |
67 | return sftmp(0); | |
68 | } | |
69 | ||
70 | void | |
c78749f2 | 71 | PerlIO_init(void) |
760ac839 | 72 | { |
6f9d8c32 NIS |
73 | /* Force this file to be included in perl binary. Which allows |
74 | * this file to force inclusion of other functions that may be | |
75 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
76 | */ |
77 | ||
78 | /* Hack | |
79 | * sfio does its own 'autoflush' on stdout in common cases. | |
6f9d8c32 | 80 | * Flush results in a lot of lseek()s to regular files and |
760ac839 LW |
81 | * lot of small writes to pipes. |
82 | */ | |
83 | sfset(sfstdout,SF_SHARE,0); | |
84 | } | |
85 | ||
17c3b450 | 86 | #else /* USE_SFIO */ |
6f9d8c32 | 87 | /*======================================================================================*/ |
6f9d8c32 | 88 | /* Implement all the PerlIO interface ourselves. |
9e353e3b | 89 | */ |
760ac839 | 90 | |
b1ef6e3b | 91 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
92 | #ifdef I_UNISTD |
93 | #include <unistd.h> | |
94 | #endif | |
f3862f8b | 95 | #include "XSUB.h" |
02f66e2f | 96 | |
6f9d8c32 NIS |
97 | #undef printf |
98 | void PerlIO_debug(char *fmt,...) __attribute__((format(printf,1,2))); | |
99 | ||
6f9d8c32 NIS |
100 | void |
101 | PerlIO_debug(char *fmt,...) | |
102 | { | |
103 | static int dbg = 0; | |
104 | if (!dbg) | |
105 | { | |
106 | char *s = getenv("PERLIO_DEBUG"); | |
107 | if (s && *s) | |
108 | dbg = open(s,O_WRONLY|O_CREAT|O_APPEND,0666); | |
109 | else | |
110 | dbg = -1; | |
111 | } | |
112 | if (dbg > 0) | |
113 | { | |
114 | dTHX; | |
115 | va_list ap; | |
116 | SV *sv = newSVpvn("",0); | |
117 | char *s; | |
118 | STRLEN len; | |
119 | va_start(ap,fmt); | |
05d1247b NIS |
120 | s = CopFILE(PL_curcop); |
121 | if (!s) | |
122 | s = "(none)"; | |
123 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); | |
c7fc522f NIS |
124 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
125 | ||
6f9d8c32 NIS |
126 | s = SvPV(sv,len); |
127 | write(dbg,s,len); | |
128 | va_end(ap); | |
129 | SvREFCNT_dec(sv); | |
130 | } | |
131 | } | |
132 | ||
9e353e3b NIS |
133 | /*--------------------------------------------------------------------------------------*/ |
134 | ||
135 | typedef struct | |
136 | { | |
137 | char * name; | |
138 | Size_t size; | |
139 | IV kind; | |
140 | IV (*Fileno)(PerlIO *f); | |
141 | PerlIO * (*Fdopen)(int fd, const char *mode); | |
142 | PerlIO * (*Open)(const char *path, const char *mode); | |
143 | int (*Reopen)(const char *path, const char *mode, PerlIO *f); | |
144 | /* Unix-like functions - cf sfio line disciplines */ | |
145 | SSize_t (*Read)(PerlIO *f, void *vbuf, Size_t count); | |
146 | SSize_t (*Unread)(PerlIO *f, const void *vbuf, Size_t count); | |
147 | SSize_t (*Write)(PerlIO *f, const void *vbuf, Size_t count); | |
148 | IV (*Seek)(PerlIO *f, Off_t offset, int whence); | |
149 | Off_t (*Tell)(PerlIO *f); | |
150 | IV (*Close)(PerlIO *f); | |
151 | /* Stdio-like buffered IO functions */ | |
152 | IV (*Flush)(PerlIO *f); | |
153 | IV (*Eof)(PerlIO *f); | |
154 | IV (*Error)(PerlIO *f); | |
155 | void (*Clearerr)(PerlIO *f); | |
156 | void (*Setlinebuf)(PerlIO *f); | |
157 | /* Perl's snooping functions */ | |
158 | STDCHAR * (*Get_base)(PerlIO *f); | |
159 | Size_t (*Get_bufsiz)(PerlIO *f); | |
160 | STDCHAR * (*Get_ptr)(PerlIO *f); | |
161 | SSize_t (*Get_cnt)(PerlIO *f); | |
162 | void (*Set_ptrcnt)(PerlIO *f,STDCHAR *ptr,SSize_t cnt); | |
163 | } PerlIO_funcs; | |
164 | ||
6f9d8c32 NIS |
165 | |
166 | struct _PerlIO | |
167 | { | |
9e353e3b NIS |
168 | PerlIOl * next; /* Lower layer */ |
169 | PerlIO_funcs * tab; /* Functions for this layer */ | |
170 | IV flags; /* Various flags for state */ | |
6f9d8c32 NIS |
171 | }; |
172 | ||
9e353e3b NIS |
173 | /*--------------------------------------------------------------------------------------*/ |
174 | ||
175 | /* Flag values */ | |
f3862f8b NIS |
176 | #define PERLIO_F_EOF 0x00010000 |
177 | #define PERLIO_F_CANWRITE 0x00020000 | |
178 | #define PERLIO_F_CANREAD 0x00040000 | |
179 | #define PERLIO_F_ERROR 0x00080000 | |
180 | #define PERLIO_F_TRUNCATE 0x00100000 | |
181 | #define PERLIO_F_APPEND 0x00200000 | |
182 | #define PERLIO_F_BINARY 0x00400000 | |
183 | #define PERLIO_F_UTF8 0x00800000 | |
184 | #define PERLIO_F_LINEBUF 0x01000000 | |
185 | #define PERLIO_F_WRBUF 0x02000000 | |
186 | #define PERLIO_F_RDBUF 0x04000000 | |
187 | #define PERLIO_F_TEMP 0x08000000 | |
188 | #define PERLIO_F_OPEN 0x10000000 | |
9e353e3b NIS |
189 | |
190 | #define PerlIOBase(f) (*(f)) | |
191 | #define PerlIOSelf(f,type) ((type *)PerlIOBase(f)) | |
192 | #define PerlIONext(f) (&(PerlIOBase(f)->next)) | |
193 | ||
194 | /*--------------------------------------------------------------------------------------*/ | |
195 | /* Inner level routines */ | |
196 | ||
b1ef6e3b | 197 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
198 | PerlIO *_perlio = NULL; |
199 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 200 | |
760ac839 | 201 | PerlIO * |
6f9d8c32 NIS |
202 | PerlIO_allocate(void) |
203 | { | |
f3862f8b | 204 | /* Find a free slot in the table, allocating new table as necessary */ |
05d1247b | 205 | PerlIO **last = &_perlio; |
6f9d8c32 | 206 | PerlIO *f; |
05d1247b | 207 | while ((f = *last)) |
6f9d8c32 | 208 | { |
05d1247b NIS |
209 | int i; |
210 | last = (PerlIO **)(f); | |
211 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
6f9d8c32 | 212 | { |
05d1247b | 213 | if (!*++f) |
6f9d8c32 | 214 | { |
6f9d8c32 NIS |
215 | return f; |
216 | } | |
6f9d8c32 | 217 | } |
6f9d8c32 | 218 | } |
05d1247b NIS |
219 | Newz('I',f,PERLIO_TABLE_SIZE,PerlIO); |
220 | if (!f) | |
221 | return NULL; | |
222 | *last = f; | |
223 | return f+1; | |
224 | } | |
225 | ||
226 | void | |
227 | PerlIO_cleantable(PerlIO **tablep) | |
228 | { | |
229 | PerlIO *table = *tablep; | |
230 | if (table) | |
231 | { | |
232 | int i; | |
233 | PerlIO_cleantable((PerlIO **) &(table[0])); | |
234 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) | |
235 | { | |
236 | PerlIO *f = table+i; | |
237 | if (*f) | |
238 | PerlIO_close(f); | |
239 | } | |
240 | Safefree(table); | |
241 | *tablep = NULL; | |
242 | } | |
243 | } | |
244 | ||
245 | void | |
246 | PerlIO_cleanup(void) | |
247 | { | |
248 | PerlIO_cleantable(&_perlio); | |
6f9d8c32 NIS |
249 | } |
250 | ||
9e353e3b NIS |
251 | void |
252 | PerlIO_pop(PerlIO *f) | |
760ac839 | 253 | { |
9e353e3b NIS |
254 | PerlIOl *l = *f; |
255 | if (l) | |
6f9d8c32 | 256 | { |
9e353e3b NIS |
257 | *f = l->next; |
258 | Safefree(l); | |
6f9d8c32 | 259 | } |
6f9d8c32 NIS |
260 | } |
261 | ||
262 | #undef PerlIO_close | |
263 | int | |
264 | PerlIO_close(PerlIO *f) | |
265 | { | |
9e353e3b NIS |
266 | int code = (*PerlIOBase(f)->tab->Close)(f); |
267 | while (*f) | |
6f9d8c32 | 268 | { |
9e353e3b | 269 | PerlIO_pop(f); |
6f9d8c32 NIS |
270 | } |
271 | return code; | |
272 | } | |
273 | ||
9e353e3b NIS |
274 | |
275 | /*--------------------------------------------------------------------------------------*/ | |
276 | /* Given the abstraction above the public API functions */ | |
277 | ||
278 | #undef PerlIO_fileno | |
279 | int | |
280 | PerlIO_fileno(PerlIO *f) | |
281 | { | |
282 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
283 | } | |
284 | ||
f3862f8b | 285 | |
9e353e3b | 286 | extern PerlIO_funcs PerlIO_unix; |
9e353e3b | 287 | extern PerlIO_funcs PerlIO_perlio; |
f3862f8b NIS |
288 | extern PerlIO_funcs PerlIO_stdio; |
289 | ||
290 | XS(XS_perlio_import) | |
291 | { | |
292 | dXSARGS; | |
293 | GV *gv = CvGV(cv); | |
294 | char *s = GvNAME(gv); | |
295 | STRLEN l = GvNAMELEN(gv); | |
296 | PerlIO_debug("%.*s\n",(int) l,s); | |
297 | XSRETURN_EMPTY; | |
298 | } | |
299 | ||
300 | XS(XS_perlio_unimport) | |
301 | { | |
302 | dXSARGS; | |
303 | GV *gv = CvGV(cv); | |
304 | char *s = GvNAME(gv); | |
305 | STRLEN l = GvNAMELEN(gv); | |
306 | PerlIO_debug("%.*s\n",(int) l,s); | |
307 | XSRETURN_EMPTY; | |
308 | } | |
309 | ||
310 | HV *PerlIO_layer_hv; | |
311 | AV *PerlIO_layer_av; | |
9e353e3b | 312 | |
f3862f8b NIS |
313 | SV * |
314 | PerlIO_find_layer(char *name, STRLEN len) | |
315 | { | |
316 | dTHX; | |
317 | SV **svp; | |
318 | SV *sv; | |
319 | if (len <= 0) | |
320 | len = strlen(name); | |
321 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
322 | if (svp && (sv = *svp) && SvROK(sv)) | |
323 | return *svp; | |
324 | return NULL; | |
325 | } | |
326 | ||
327 | void | |
328 | PerlIO_define_layer(PerlIO_funcs *tab) | |
329 | { | |
330 | dTHX; | |
331 | HV *stash = gv_stashpv("perlio::Layer", TRUE); | |
332 | SV *sv = sv_bless(newRV_noinc(newSViv((IV) tab)),stash); | |
333 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); | |
334 | } | |
335 | ||
336 | PerlIO_funcs * | |
337 | PerlIO_default_layer(I32 n) | |
338 | { | |
339 | dTHX; | |
340 | SV **svp; | |
341 | SV *layer; | |
342 | PerlIO_funcs *tab = &PerlIO_stdio; | |
343 | int len; | |
344 | if (!PerlIO_layer_hv) | |
345 | { | |
346 | char *s = getenv("PERLIO"); | |
347 | newXS("perlio::import",XS_perlio_import,__FILE__); | |
348 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
349 | PerlIO_layer_hv = get_hv("perlio::layers",GV_ADD|GV_ADDMULTI); | |
350 | PerlIO_layer_av = get_av("perlio::layers",GV_ADD|GV_ADDMULTI); | |
351 | PerlIO_define_layer(&PerlIO_unix); | |
352 | PerlIO_define_layer(&PerlIO_unix); | |
353 | PerlIO_define_layer(&PerlIO_perlio); | |
354 | PerlIO_define_layer(&PerlIO_stdio); | |
355 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); | |
356 | if (s) | |
357 | { | |
358 | while (*s) | |
359 | { | |
360 | while (*s && isspace((unsigned char)*s)) | |
361 | s++; | |
362 | if (*s) | |
363 | { | |
364 | char *e = s; | |
365 | SV *layer; | |
366 | while (*e && !isspace((unsigned char)*e)) | |
367 | e++; | |
368 | layer = PerlIO_find_layer(s,e-s); | |
369 | if (layer) | |
370 | { | |
371 | PerlIO_debug("Pushing %.*s\n",(e-s),s); | |
372 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
373 | } | |
374 | else | |
375 | Perl_croak(aTHX_ "Unknown layer %.*s",(e-s),s); | |
376 | s = e; | |
377 | } | |
378 | } | |
379 | } | |
380 | } | |
381 | len = av_len(PerlIO_layer_av); | |
382 | if (len < 1) | |
383 | { | |
384 | if (PerlIO_stdio.Set_ptrcnt) | |
385 | { | |
386 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); | |
387 | } | |
388 | else | |
389 | { | |
390 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); | |
391 | } | |
392 | len = av_len(PerlIO_layer_av); | |
393 | } | |
394 | if (n < 0) | |
395 | n += len+1; | |
396 | svp = av_fetch(PerlIO_layer_av,n,0); | |
397 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
398 | { | |
399 | tab = (PerlIO_funcs *) SvIV(layer); | |
400 | } | |
401 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
402 | return tab; | |
403 | } | |
404 | ||
405 | #define PerlIO_default_top() PerlIO_default_layer(-1) | |
406 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
407 | ||
408 | void | |
409 | PerlIO_stdstreams() | |
410 | { | |
411 | if (!_perlio) | |
412 | { | |
413 | PerlIO_allocate(); | |
414 | PerlIO_fdopen(0,"Ir"); | |
415 | PerlIO_fdopen(1,"Iw"); | |
416 | PerlIO_fdopen(2,"Iw"); | |
417 | } | |
418 | } | |
9e353e3b NIS |
419 | |
420 | #undef PerlIO_fdopen | |
421 | PerlIO * | |
422 | PerlIO_fdopen(int fd, const char *mode) | |
423 | { | |
424 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
425 | if (!_perlio) |
426 | PerlIO_stdstreams(); | |
9e353e3b NIS |
427 | return (*tab->Fdopen)(fd,mode); |
428 | } | |
429 | ||
6f9d8c32 NIS |
430 | #undef PerlIO_open |
431 | PerlIO * | |
432 | PerlIO_open(const char *path, const char *mode) | |
433 | { | |
9e353e3b | 434 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
435 | if (!_perlio) |
436 | PerlIO_stdstreams(); | |
9e353e3b | 437 | return (*tab->Open)(path,mode); |
6f9d8c32 NIS |
438 | } |
439 | ||
9e353e3b NIS |
440 | IV |
441 | PerlIOBase_init(PerlIO *f, const char *mode) | |
6f9d8c32 | 442 | { |
9e353e3b NIS |
443 | PerlIOl *l = PerlIOBase(f); |
444 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
445 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
446 | if (mode) | |
6f9d8c32 | 447 | { |
9e353e3b NIS |
448 | switch (*mode++) |
449 | { | |
450 | case 'r': | |
451 | l->flags = PERLIO_F_CANREAD; | |
452 | break; | |
453 | case 'a': | |
454 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; | |
455 | break; | |
456 | case 'w': | |
457 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; | |
458 | break; | |
459 | default: | |
460 | errno = EINVAL; | |
461 | return -1; | |
462 | } | |
463 | while (*mode) | |
6f9d8c32 | 464 | { |
9e353e3b | 465 | switch (*mode++) |
6f9d8c32 | 466 | { |
9e353e3b NIS |
467 | case '+': |
468 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
469 | break; | |
470 | case 'b': | |
471 | l->flags |= PERLIO_F_BINARY; | |
472 | break; | |
473 | default: | |
474 | errno = EINVAL; | |
475 | return -1; | |
6f9d8c32 NIS |
476 | } |
477 | } | |
9e353e3b NIS |
478 | } |
479 | else | |
480 | { | |
481 | if (l->next) | |
6f9d8c32 | 482 | { |
9e353e3b NIS |
483 | l->flags |= l->next->flags & |
484 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
485 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
6f9d8c32 NIS |
486 | } |
487 | } | |
9e353e3b | 488 | return 0; |
6f9d8c32 NIS |
489 | } |
490 | ||
9e353e3b NIS |
491 | #undef PerlIO_reopen |
492 | PerlIO * | |
493 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 494 | { |
9e353e3b | 495 | if (f) |
6f9d8c32 | 496 | { |
9e353e3b NIS |
497 | PerlIO_flush(f); |
498 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
499 | { | |
500 | PerlIOBase_init(f,mode); | |
501 | return f; | |
502 | } | |
503 | return NULL; | |
6f9d8c32 | 504 | } |
9e353e3b NIS |
505 | else |
506 | return PerlIO_open(path,mode); | |
760ac839 LW |
507 | } |
508 | ||
9e353e3b NIS |
509 | #undef PerlIO_read |
510 | SSize_t | |
511 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 512 | { |
9e353e3b | 513 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
514 | } |
515 | ||
9e353e3b | 516 | #undef PerlIO_ungetc |
6f9d8c32 | 517 | int |
9e353e3b | 518 | PerlIO_ungetc(PerlIO *f, int ch) |
760ac839 | 519 | { |
9e353e3b NIS |
520 | STDCHAR buf = ch; |
521 | if ((*PerlIOBase(f)->tab->Unread)(f,&buf,1) == 1) | |
522 | return ch; | |
523 | return -1; | |
760ac839 LW |
524 | } |
525 | ||
9e353e3b NIS |
526 | #undef PerlIO_write |
527 | SSize_t | |
528 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 529 | { |
9e353e3b | 530 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
531 | } |
532 | ||
9e353e3b | 533 | #undef PerlIO_seek |
6f9d8c32 | 534 | int |
9e353e3b | 535 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 536 | { |
9e353e3b | 537 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
538 | } |
539 | ||
9e353e3b NIS |
540 | #undef PerlIO_tell |
541 | Off_t | |
542 | PerlIO_tell(PerlIO *f) | |
760ac839 | 543 | { |
9e353e3b | 544 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
545 | } |
546 | ||
9e353e3b | 547 | #undef PerlIO_flush |
6f9d8c32 | 548 | int |
9e353e3b | 549 | PerlIO_flush(PerlIO *f) |
760ac839 | 550 | { |
6f9d8c32 NIS |
551 | if (f) |
552 | { | |
9e353e3b | 553 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 554 | } |
9e353e3b | 555 | else |
6f9d8c32 | 556 | { |
05d1247b | 557 | PerlIO **table = &_perlio; |
9e353e3b | 558 | int code = 0; |
05d1247b | 559 | while ((f = *table)) |
6f9d8c32 | 560 | { |
05d1247b NIS |
561 | int i; |
562 | table = (PerlIO **)(f++); | |
563 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
564 | { |
565 | if (*f && PerlIO_flush(f) != 0) | |
566 | code = -1; | |
05d1247b | 567 | f++; |
9e353e3b | 568 | } |
6f9d8c32 | 569 | } |
9e353e3b | 570 | return code; |
6f9d8c32 | 571 | } |
760ac839 LW |
572 | } |
573 | ||
f3862f8b NIS |
574 | #undef PerlIO_isutf8 |
575 | int | |
576 | PerlIO_isutf8(PerlIO *f) | |
577 | { | |
578 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
579 | } | |
580 | ||
9e353e3b | 581 | #undef PerlIO_eof |
6f9d8c32 | 582 | int |
9e353e3b | 583 | PerlIO_eof(PerlIO *f) |
760ac839 | 584 | { |
9e353e3b NIS |
585 | return (*PerlIOBase(f)->tab->Eof)(f); |
586 | } | |
587 | ||
588 | #undef PerlIO_error | |
589 | int | |
590 | PerlIO_error(PerlIO *f) | |
591 | { | |
592 | return (*PerlIOBase(f)->tab->Error)(f); | |
593 | } | |
594 | ||
595 | #undef PerlIO_clearerr | |
596 | void | |
597 | PerlIO_clearerr(PerlIO *f) | |
598 | { | |
599 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
600 | } | |
601 | ||
602 | #undef PerlIO_setlinebuf | |
603 | void | |
604 | PerlIO_setlinebuf(PerlIO *f) | |
605 | { | |
606 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
607 | } | |
608 | ||
609 | #undef PerlIO_has_base | |
610 | int | |
611 | PerlIO_has_base(PerlIO *f) | |
612 | { | |
613 | if (f && *f) | |
6f9d8c32 | 614 | { |
9e353e3b | 615 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 616 | } |
9e353e3b | 617 | return 0; |
760ac839 LW |
618 | } |
619 | ||
9e353e3b NIS |
620 | #undef PerlIO_fast_gets |
621 | int | |
622 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 623 | { |
9e353e3b | 624 | if (f && *f) |
6f9d8c32 | 625 | { |
c7fc522f NIS |
626 | PerlIOl *l = PerlIOBase(f); |
627 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 628 | } |
9e353e3b NIS |
629 | return 0; |
630 | } | |
631 | ||
632 | #undef PerlIO_has_cntptr | |
633 | int | |
634 | PerlIO_has_cntptr(PerlIO *f) | |
635 | { | |
636 | if (f && *f) | |
637 | { | |
638 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
639 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
640 | } | |
641 | return 0; | |
642 | } | |
643 | ||
644 | #undef PerlIO_canset_cnt | |
645 | int | |
646 | PerlIO_canset_cnt(PerlIO *f) | |
647 | { | |
648 | if (f && *f) | |
649 | { | |
c7fc522f NIS |
650 | PerlIOl *l = PerlIOBase(f); |
651 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 652 | } |
c7fc522f | 653 | return 0; |
760ac839 LW |
654 | } |
655 | ||
656 | #undef PerlIO_get_base | |
888911fc | 657 | STDCHAR * |
a20bf0c3 | 658 | PerlIO_get_base(PerlIO *f) |
760ac839 | 659 | { |
9e353e3b NIS |
660 | return (*PerlIOBase(f)->tab->Get_base)(f); |
661 | } | |
662 | ||
663 | #undef PerlIO_get_bufsiz | |
664 | int | |
665 | PerlIO_get_bufsiz(PerlIO *f) | |
666 | { | |
667 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
668 | } | |
669 | ||
670 | #undef PerlIO_get_ptr | |
671 | STDCHAR * | |
672 | PerlIO_get_ptr(PerlIO *f) | |
673 | { | |
674 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
675 | } | |
676 | ||
677 | #undef PerlIO_get_cnt | |
05d1247b | 678 | int |
9e353e3b NIS |
679 | PerlIO_get_cnt(PerlIO *f) |
680 | { | |
681 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
682 | } | |
683 | ||
684 | #undef PerlIO_set_cnt | |
685 | void | |
05d1247b | 686 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 687 | { |
f3862f8b | 688 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
689 | } |
690 | ||
691 | #undef PerlIO_set_ptrcnt | |
692 | void | |
05d1247b | 693 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 694 | { |
f3862f8b | 695 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
696 | } |
697 | ||
698 | /*--------------------------------------------------------------------------------------*/ | |
699 | /* "Methods" of the "base class" */ | |
700 | ||
701 | IV | |
702 | PerlIOBase_fileno(PerlIO *f) | |
703 | { | |
704 | return PerlIO_fileno(PerlIONext(f)); | |
705 | } | |
706 | ||
707 | PerlIO * | |
708 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
709 | { | |
710 | PerlIOl *l = NULL; | |
711 | Newc('L',l,tab->size,char,PerlIOl); | |
712 | if (l) | |
6f9d8c32 | 713 | { |
9e353e3b NIS |
714 | Zero(l,tab->size,char); |
715 | l->next = *f; | |
716 | l->tab = tab; | |
717 | *f = l; | |
718 | PerlIOBase_init(f,mode); | |
6f9d8c32 | 719 | } |
9e353e3b | 720 | return f; |
760ac839 LW |
721 | } |
722 | ||
9e353e3b NIS |
723 | SSize_t |
724 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
725 | { | |
726 | Off_t old = PerlIO_tell(f); | |
727 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
728 | { | |
729 | Off_t new = PerlIO_tell(f); | |
730 | return old - new; | |
731 | } | |
732 | return 0; | |
733 | } | |
734 | ||
735 | IV | |
736 | PerlIOBase_sync(PerlIO *f) | |
737 | { | |
738 | return 0; | |
739 | } | |
740 | ||
741 | IV | |
742 | PerlIOBase_close(PerlIO *f) | |
743 | { | |
744 | IV code = 0; | |
745 | if (PerlIO_flush(f) != 0) | |
746 | code = -1; | |
747 | if (PerlIO_close(PerlIONext(f)) != 0) | |
748 | code = -1; | |
749 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
750 | return code; | |
751 | } | |
752 | ||
753 | IV | |
754 | PerlIOBase_eof(PerlIO *f) | |
755 | { | |
756 | if (f && *f) | |
757 | { | |
758 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
759 | } | |
760 | return 1; | |
761 | } | |
762 | ||
763 | IV | |
764 | PerlIOBase_error(PerlIO *f) | |
765 | { | |
766 | if (f && *f) | |
767 | { | |
768 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
769 | } | |
770 | return 1; | |
771 | } | |
772 | ||
773 | void | |
774 | PerlIOBase_clearerr(PerlIO *f) | |
775 | { | |
776 | if (f && *f) | |
777 | { | |
778 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
779 | } | |
780 | } | |
781 | ||
782 | void | |
783 | PerlIOBase_setlinebuf(PerlIO *f) | |
784 | { | |
785 | ||
786 | } | |
787 | ||
788 | ||
789 | ||
790 | /*--------------------------------------------------------------------------------------*/ | |
791 | /* Bottom-most level for UNIX-like case */ | |
792 | ||
793 | typedef struct | |
794 | { | |
795 | struct _PerlIO base; /* The generic part */ | |
796 | int fd; /* UNIX like file descriptor */ | |
797 | int oflags; /* open/fcntl flags */ | |
798 | } PerlIOUnix; | |
799 | ||
6f9d8c32 | 800 | int |
9e353e3b | 801 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 802 | { |
9e353e3b NIS |
803 | int oflags = -1; |
804 | switch(*mode) | |
805 | { | |
806 | case 'r': | |
807 | oflags = O_RDONLY; | |
808 | if (*++mode == '+') | |
809 | { | |
810 | oflags = O_RDWR; | |
811 | mode++; | |
812 | } | |
813 | break; | |
814 | ||
815 | case 'w': | |
816 | oflags = O_CREAT|O_TRUNC; | |
817 | if (*++mode == '+') | |
818 | { | |
819 | oflags |= O_RDWR; | |
820 | mode++; | |
821 | } | |
822 | else | |
823 | oflags |= O_WRONLY; | |
824 | break; | |
825 | ||
826 | case 'a': | |
827 | oflags = O_CREAT|O_APPEND; | |
828 | if (*++mode == '+') | |
829 | { | |
830 | oflags |= O_RDWR; | |
831 | mode++; | |
832 | } | |
833 | else | |
834 | oflags |= O_WRONLY; | |
835 | break; | |
836 | } | |
837 | if (*mode || oflags == -1) | |
6f9d8c32 | 838 | { |
9e353e3b NIS |
839 | errno = EINVAL; |
840 | oflags = -1; | |
6f9d8c32 | 841 | } |
9e353e3b NIS |
842 | return oflags; |
843 | } | |
844 | ||
845 | IV | |
846 | PerlIOUnix_fileno(PerlIO *f) | |
847 | { | |
848 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
849 | } | |
850 | ||
851 | PerlIO * | |
852 | PerlIOUnix_fdopen(int fd,const char *mode) | |
853 | { | |
854 | PerlIO *f = NULL; | |
c7fc522f NIS |
855 | if (*mode == 'I') |
856 | mode++; | |
9e353e3b NIS |
857 | if (fd >= 0) |
858 | { | |
859 | int oflags = PerlIOUnix_oflags(mode); | |
860 | if (oflags != -1) | |
861 | { | |
862 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
863 | s->fd = fd; | |
864 | s->oflags = oflags; | |
865 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
866 | } | |
867 | } | |
868 | return f; | |
869 | } | |
870 | ||
871 | PerlIO * | |
872 | PerlIOUnix_open(const char *path,const char *mode) | |
873 | { | |
874 | PerlIO *f = NULL; | |
875 | int oflags = PerlIOUnix_oflags(mode); | |
876 | if (oflags != -1) | |
877 | { | |
878 | int fd = open(path,oflags,0666); | |
879 | if (fd >= 0) | |
880 | { | |
881 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
882 | s->fd = fd; | |
883 | s->oflags = oflags; | |
884 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
885 | } | |
886 | } | |
887 | return f; | |
760ac839 LW |
888 | } |
889 | ||
760ac839 | 890 | int |
9e353e3b | 891 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 892 | { |
9e353e3b NIS |
893 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
894 | int oflags = PerlIOUnix_oflags(mode); | |
895 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
896 | (*PerlIOBase(f)->tab->Close)(f); | |
897 | if (oflags != -1) | |
898 | { | |
899 | int fd = open(path,oflags,0666); | |
900 | if (fd >= 0) | |
901 | { | |
902 | s->fd = fd; | |
903 | s->oflags = oflags; | |
904 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
905 | return 0; | |
906 | } | |
907 | } | |
908 | return -1; | |
909 | } | |
910 | ||
911 | SSize_t | |
912 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
913 | { | |
914 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
915 | while (1) | |
916 | { | |
917 | SSize_t len = read(fd,vbuf,count); | |
918 | if (len >= 0 || errno != EINTR) | |
919 | return len; | |
920 | } | |
921 | } | |
922 | ||
923 | SSize_t | |
924 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
925 | { | |
926 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
927 | while (1) | |
928 | { | |
929 | SSize_t len = write(fd,vbuf,count); | |
930 | if (len >= 0 || errno != EINTR) | |
931 | return len; | |
932 | } | |
933 | } | |
934 | ||
935 | IV | |
936 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
937 | { | |
938 | Off_t new = lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); | |
939 | return (new == (Off_t) -1) ? -1 : 0; | |
940 | } | |
941 | ||
942 | Off_t | |
943 | PerlIOUnix_tell(PerlIO *f) | |
944 | { | |
945 | return lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); | |
946 | } | |
947 | ||
948 | IV | |
949 | PerlIOUnix_close(PerlIO *f) | |
950 | { | |
951 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
952 | int code = 0; | |
953 | while (close(fd) != 0) | |
954 | { | |
955 | if (errno != EINTR) | |
956 | { | |
957 | code = -1; | |
958 | break; | |
959 | } | |
960 | } | |
961 | if (code == 0) | |
962 | { | |
963 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
964 | } | |
965 | return code; | |
966 | } | |
967 | ||
968 | PerlIO_funcs PerlIO_unix = { | |
969 | "unix", | |
970 | sizeof(PerlIOUnix), | |
971 | 0, | |
972 | PerlIOUnix_fileno, | |
973 | PerlIOUnix_fdopen, | |
974 | PerlIOUnix_open, | |
975 | PerlIOUnix_reopen, | |
976 | PerlIOUnix_read, | |
977 | PerlIOBase_unread, | |
978 | PerlIOUnix_write, | |
979 | PerlIOUnix_seek, | |
980 | PerlIOUnix_tell, | |
981 | PerlIOUnix_close, | |
982 | PerlIOBase_sync, | |
983 | PerlIOBase_eof, | |
984 | PerlIOBase_error, | |
985 | PerlIOBase_clearerr, | |
986 | PerlIOBase_setlinebuf, | |
987 | NULL, /* get_base */ | |
988 | NULL, /* get_bufsiz */ | |
989 | NULL, /* get_ptr */ | |
990 | NULL, /* get_cnt */ | |
991 | NULL, /* set_ptrcnt */ | |
992 | }; | |
993 | ||
994 | /*--------------------------------------------------------------------------------------*/ | |
995 | /* stdio as a layer */ | |
996 | ||
997 | typedef struct | |
998 | { | |
999 | struct _PerlIO base; | |
1000 | FILE * stdio; /* The stream */ | |
1001 | } PerlIOStdio; | |
1002 | ||
1003 | IV | |
1004 | PerlIOStdio_fileno(PerlIO *f) | |
1005 | { | |
1006 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1007 | } | |
1008 | ||
1009 | ||
1010 | PerlIO * | |
1011 | PerlIOStdio_fdopen(int fd,const char *mode) | |
1012 | { | |
1013 | PerlIO *f = NULL; | |
c7fc522f NIS |
1014 | int init = 0; |
1015 | if (*mode == 'I') | |
1016 | { | |
1017 | init = 1; | |
1018 | mode++; | |
1019 | } | |
9e353e3b NIS |
1020 | if (fd >= 0) |
1021 | { | |
c7fc522f NIS |
1022 | FILE *stdio = NULL; |
1023 | if (init) | |
1024 | { | |
1025 | switch(fd) | |
1026 | { | |
1027 | case 0: | |
1028 | stdio = stdin; | |
1029 | break; | |
1030 | case 1: | |
1031 | stdio = stdout; | |
1032 | break; | |
1033 | case 2: | |
1034 | stdio = stderr; | |
1035 | break; | |
1036 | } | |
1037 | } | |
1038 | else | |
1039 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
1040 | if (stdio) |
1041 | { | |
1042 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
1043 | s->stdio = stdio; | |
1044 | } | |
1045 | } | |
1046 | return f; | |
1047 | } | |
1048 | ||
1049 | #undef PerlIO_importFILE | |
1050 | PerlIO * | |
1051 | PerlIO_importFILE(FILE *stdio, int fl) | |
1052 | { | |
1053 | PerlIO *f = NULL; | |
1054 | if (stdio) | |
1055 | { | |
1056 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
1057 | s->stdio = stdio; | |
1058 | } | |
1059 | return f; | |
1060 | } | |
1061 | ||
1062 | PerlIO * | |
1063 | PerlIOStdio_open(const char *path,const char *mode) | |
1064 | { | |
1065 | PerlIO *f = NULL; | |
1066 | FILE *stdio = fopen(path,mode); | |
1067 | if (stdio) | |
1068 | { | |
1069 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
1070 | s->stdio = stdio; | |
1071 | } | |
1072 | return f; | |
760ac839 LW |
1073 | } |
1074 | ||
6f9d8c32 | 1075 | int |
9e353e3b NIS |
1076 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1077 | { | |
1078 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1079 | FILE *stdio = freopen(path,mode,s->stdio); | |
1080 | if (!s->stdio) | |
1081 | return -1; | |
1082 | s->stdio = stdio; | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | SSize_t | |
1087 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1088 | { | |
1089 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 1090 | SSize_t got = 0; |
9e353e3b NIS |
1091 | if (count == 1) |
1092 | { | |
1093 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1094 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1095 | * Linux's stdio does not do that for fread() | |
1096 | */ | |
1097 | int ch = fgetc(s); | |
1098 | if (ch != EOF) | |
1099 | { | |
1100 | *buf = ch; | |
c7fc522f | 1101 | got = 1; |
9e353e3b | 1102 | } |
9e353e3b | 1103 | } |
c7fc522f NIS |
1104 | else |
1105 | got = fread(vbuf,1,count,s); | |
1106 | return got; | |
9e353e3b NIS |
1107 | } |
1108 | ||
1109 | SSize_t | |
1110 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1111 | { | |
1112 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1113 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1114 | SSize_t unread = 0; | |
1115 | while (count > 0) | |
1116 | { | |
1117 | int ch = *buf-- & 0xff; | |
1118 | if (ungetc(ch,s) != ch) | |
1119 | break; | |
1120 | unread++; | |
1121 | count--; | |
1122 | } | |
1123 | return unread; | |
1124 | } | |
1125 | ||
1126 | SSize_t | |
1127 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1128 | { | |
1129 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
1130 | } | |
1131 | ||
1132 | IV | |
1133 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1134 | { | |
c7fc522f NIS |
1135 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1136 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1137 | } |
1138 | ||
1139 | Off_t | |
1140 | PerlIOStdio_tell(PerlIO *f) | |
1141 | { | |
c7fc522f NIS |
1142 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1143 | return ftell(stdio); | |
9e353e3b NIS |
1144 | } |
1145 | ||
1146 | IV | |
1147 | PerlIOStdio_close(PerlIO *f) | |
1148 | { | |
1149 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1150 | } | |
1151 | ||
1152 | IV | |
1153 | PerlIOStdio_flush(PerlIO *f) | |
1154 | { | |
1155 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1156 | return fflush(stdio); | |
1157 | } | |
1158 | ||
1159 | IV | |
1160 | PerlIOStdio_eof(PerlIO *f) | |
1161 | { | |
1162 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1163 | } | |
1164 | ||
1165 | IV | |
1166 | PerlIOStdio_error(PerlIO *f) | |
1167 | { | |
1168 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1169 | } | |
1170 | ||
1171 | void | |
1172 | PerlIOStdio_clearerr(PerlIO *f) | |
1173 | { | |
1174 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1175 | } | |
1176 | ||
1177 | void | |
1178 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1179 | { | |
1180 | #ifdef HAS_SETLINEBUF | |
1181 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1182 | #else | |
1183 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1184 | #endif | |
1185 | } | |
1186 | ||
1187 | #ifdef FILE_base | |
1188 | STDCHAR * | |
1189 | PerlIOStdio_get_base(PerlIO *f) | |
1190 | { | |
1191 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1192 | return FILE_base(stdio); | |
1193 | } | |
1194 | ||
1195 | Size_t | |
1196 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1197 | { | |
1198 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1199 | return FILE_bufsiz(stdio); | |
1200 | } | |
1201 | #endif | |
1202 | ||
1203 | #ifdef USE_STDIO_PTR | |
1204 | STDCHAR * | |
1205 | PerlIOStdio_get_ptr(PerlIO *f) | |
1206 | { | |
1207 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1208 | return FILE_ptr(stdio); | |
1209 | } | |
1210 | ||
1211 | SSize_t | |
1212 | PerlIOStdio_get_cnt(PerlIO *f) | |
1213 | { | |
1214 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1215 | return FILE_cnt(stdio); | |
1216 | } | |
1217 | ||
1218 | void | |
1219 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1220 | { | |
1221 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1222 | if (ptr != NULL) | |
1223 | { | |
1224 | #ifdef STDIO_PTR_LVALUE | |
1225 | FILE_ptr(stdio) = ptr; | |
1226 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1227 | if (FILE_cnt(stdio) != (cnt)) | |
1228 | { | |
1229 | dTHX; | |
1230 | assert(FILE_cnt(stdio) == (cnt)); | |
1231 | } | |
1232 | #endif | |
1233 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1234 | /* Setting ptr _does_ change cnt - we are done */ | |
1235 | return; | |
1236 | #endif | |
1237 | #else /* STDIO_PTR_LVALUE */ | |
1238 | abort(); | |
1239 | #endif /* STDIO_PTR_LVALUE */ | |
1240 | } | |
1241 | /* Now (or only) set cnt */ | |
1242 | #ifdef STDIO_CNT_LVALUE | |
1243 | FILE_cnt(stdio) = cnt; | |
1244 | #else /* STDIO_CNT_LVALUE */ | |
1245 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1246 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1247 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1248 | abort(); | |
1249 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1250 | #endif /* STDIO_CNT_LVALUE */ | |
1251 | } | |
1252 | ||
1253 | #endif | |
1254 | ||
1255 | PerlIO_funcs PerlIO_stdio = { | |
1256 | "stdio", | |
1257 | sizeof(PerlIOStdio), | |
1258 | 0, | |
1259 | PerlIOStdio_fileno, | |
1260 | PerlIOStdio_fdopen, | |
1261 | PerlIOStdio_open, | |
1262 | PerlIOStdio_reopen, | |
1263 | PerlIOStdio_read, | |
1264 | PerlIOStdio_unread, | |
1265 | PerlIOStdio_write, | |
1266 | PerlIOStdio_seek, | |
1267 | PerlIOStdio_tell, | |
1268 | PerlIOStdio_close, | |
1269 | PerlIOStdio_flush, | |
1270 | PerlIOStdio_eof, | |
1271 | PerlIOStdio_error, | |
1272 | PerlIOStdio_clearerr, | |
1273 | PerlIOStdio_setlinebuf, | |
1274 | #ifdef FILE_base | |
1275 | PerlIOStdio_get_base, | |
1276 | PerlIOStdio_get_bufsiz, | |
1277 | #else | |
1278 | NULL, | |
1279 | NULL, | |
1280 | #endif | |
1281 | #ifdef USE_STDIO_PTR | |
1282 | PerlIOStdio_get_ptr, | |
1283 | PerlIOStdio_get_cnt, | |
1284 | #if (defined(STDIO_PTR_LVALUE) && \ | |
1285 | (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) | |
1286 | PerlIOStdio_set_ptrcnt | |
1287 | #else /* STDIO_PTR_LVALUE */ | |
1288 | NULL | |
1289 | #endif /* STDIO_PTR_LVALUE */ | |
1290 | #else /* USE_STDIO_PTR */ | |
1291 | NULL, | |
1292 | NULL, | |
1293 | NULL | |
1294 | #endif /* USE_STDIO_PTR */ | |
1295 | }; | |
1296 | ||
1297 | #undef PerlIO_exportFILE | |
1298 | FILE * | |
1299 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1300 | { | |
1301 | PerlIO_flush(f); | |
1302 | /* Should really push stdio discipline when we have them */ | |
1303 | return fdopen(PerlIO_fileno(f),"r+"); | |
1304 | } | |
1305 | ||
1306 | #undef PerlIO_findFILE | |
1307 | FILE * | |
1308 | PerlIO_findFILE(PerlIO *f) | |
1309 | { | |
1310 | return PerlIO_exportFILE(f,0); | |
1311 | } | |
1312 | ||
1313 | #undef PerlIO_releaseFILE | |
1314 | void | |
1315 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1316 | { | |
1317 | } | |
1318 | ||
1319 | /*--------------------------------------------------------------------------------------*/ | |
1320 | /* perlio buffer layer */ | |
1321 | ||
1322 | typedef struct | |
760ac839 | 1323 | { |
9e353e3b NIS |
1324 | struct _PerlIO base; |
1325 | Off_t posn; /* Offset of buf into the file */ | |
1326 | STDCHAR * buf; /* Start of buffer */ | |
1327 | STDCHAR * end; /* End of valid part of buffer */ | |
1328 | STDCHAR * ptr; /* Current position in buffer */ | |
1329 | Size_t bufsiz; /* Size of buffer */ | |
1330 | IV oneword; /* Emergency buffer */ | |
1331 | } PerlIOBuf; | |
1332 | ||
1333 | ||
1334 | PerlIO * | |
1335 | PerlIOBuf_fdopen(int fd, const char *mode) | |
1336 | { | |
1337 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1338 | int init = 0; |
1339 | PerlIO *f; | |
1340 | if (*mode == 'I') | |
1341 | { | |
1342 | init = 1; | |
1343 | mode++; | |
1344 | } | |
1345 | f = (*tab->Fdopen)(fd,mode); | |
6f9d8c32 NIS |
1346 | if (f) |
1347 | { | |
c7fc522f NIS |
1348 | /* Initial stderr is unbuffered */ |
1349 | if (!init || fd != 2) | |
1350 | { | |
1351 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1352 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1353 | } | |
6f9d8c32 | 1354 | } |
9e353e3b | 1355 | return f; |
760ac839 LW |
1356 | } |
1357 | ||
9e353e3b NIS |
1358 | PerlIO * |
1359 | PerlIOBuf_open(const char *path, const char *mode) | |
8c86a920 | 1360 | { |
9e353e3b NIS |
1361 | PerlIO_funcs *tab = PerlIO_default_btm(); |
1362 | PerlIO *f = (*tab->Open)(path,mode); | |
1363 | if (f) | |
1364 | { | |
1365 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1366 | b->posn = 0; | |
1367 | } | |
1368 | return f; | |
1369 | } | |
1370 | ||
1371 | int | |
1372 | PerlIOBase_reopen(const char *path, const char *mode, PerlIO *f) | |
1373 | { | |
1374 | return (*PerlIOBase(f)->tab->Reopen)(path,mode,PerlIONext(f)); | |
1375 | } | |
1376 | ||
1377 | void | |
1378 | PerlIOBuf_alloc_buf(PerlIOBuf *b) | |
1379 | { | |
1380 | if (!b->bufsiz) | |
1381 | b->bufsiz = 4096; | |
05d1247b | 1382 | New('B',b->buf,b->bufsiz,STDCHAR); |
9e353e3b NIS |
1383 | if (!b->buf) |
1384 | { | |
1385 | b->buf = (STDCHAR *)&b->oneword; | |
1386 | b->bufsiz = sizeof(b->oneword); | |
1387 | } | |
1388 | b->ptr = b->buf; | |
1389 | b->end = b->ptr; | |
8c86a920 | 1390 | } |
1391 | ||
9e353e3b NIS |
1392 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1393 | read or write state | |
1394 | */ | |
1395 | IV | |
1396 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1397 | { |
9e353e3b NIS |
1398 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1399 | int code = 0; | |
1400 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1401 | { | |
1402 | /* write() the buffer */ | |
1403 | STDCHAR *p = b->buf; | |
1404 | int count; | |
1405 | while (p < b->ptr) | |
1406 | { | |
1407 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1408 | if (count > 0) | |
1409 | { | |
1410 | p += count; | |
1411 | } | |
1412 | else if (count < 0) | |
1413 | { | |
1414 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1415 | code = -1; | |
1416 | break; | |
1417 | } | |
1418 | } | |
1419 | b->posn += (p - b->buf); | |
1420 | } | |
1421 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1422 | { |
9e353e3b NIS |
1423 | /* Note position change */ |
1424 | b->posn += (b->ptr - b->buf); | |
1425 | if (b->ptr < b->end) | |
1426 | { | |
1427 | /* We did not consume all of it */ | |
1428 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1429 | { | |
1430 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1431 | } | |
1432 | } | |
6f9d8c32 | 1433 | } |
9e353e3b NIS |
1434 | b->ptr = b->end = b->buf; |
1435 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1436 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1437 | code = -1; | |
1438 | return code; | |
6f9d8c32 NIS |
1439 | } |
1440 | ||
6f9d8c32 | 1441 | SSize_t |
9e353e3b | 1442 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1443 | { |
9e353e3b | 1444 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1445 | STDCHAR *buf = (STDCHAR *) vbuf; |
1446 | if (f) | |
1447 | { | |
1448 | Size_t got = 0; | |
9e353e3b NIS |
1449 | if (!b->ptr) |
1450 | PerlIOBuf_alloc_buf(b); | |
1451 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
f89522bf | 1452 | return 0; |
6f9d8c32 NIS |
1453 | while (count > 0) |
1454 | { | |
9e353e3b | 1455 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1456 | if ((SSize_t) count < avail) |
1457 | avail = count; | |
1458 | if (avail > 0) | |
1459 | { | |
9e353e3b | 1460 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1461 | got += avail; |
9e353e3b | 1462 | b->ptr += avail; |
6f9d8c32 NIS |
1463 | count -= avail; |
1464 | buf += avail; | |
1465 | } | |
9e353e3b | 1466 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1467 | { |
bb9950b7 | 1468 | PerlIO_flush(f); |
9e353e3b NIS |
1469 | b->ptr = b->end = b->buf; |
1470 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
6f9d8c32 NIS |
1471 | if (avail <= 0) |
1472 | { | |
1473 | if (avail == 0) | |
9e353e3b | 1474 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
6f9d8c32 | 1475 | else |
9e353e3b | 1476 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
6f9d8c32 NIS |
1477 | break; |
1478 | } | |
9e353e3b NIS |
1479 | b->end = b->buf+avail; |
1480 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
6f9d8c32 NIS |
1481 | } |
1482 | } | |
1483 | return got; | |
1484 | } | |
1485 | return 0; | |
1486 | } | |
1487 | ||
9e353e3b NIS |
1488 | SSize_t |
1489 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1490 | { |
9e353e3b NIS |
1491 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1492 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1493 | SSize_t unread = 0; | |
1494 | SSize_t avail; | |
1495 | if (!b->buf) | |
1496 | PerlIOBuf_alloc_buf(b); | |
1497 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1498 | PerlIO_flush(f); | |
1499 | if (b->buf) | |
1500 | { | |
1501 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1502 | { | |
1503 | avail = (b->ptr - b->buf); | |
1504 | if (avail > (SSize_t) count) | |
1505 | avail = count; | |
1506 | b->ptr -= avail; | |
1507 | } | |
1508 | else | |
1509 | { | |
1510 | avail = b->bufsiz; | |
1511 | if (avail > (SSize_t) count) | |
1512 | avail = count; | |
1513 | b->end = b->ptr + avail; | |
1514 | } | |
1515 | if (avail > 0) | |
1516 | { | |
1517 | buf -= avail; | |
1518 | if (buf != b->ptr) | |
1519 | { | |
1520 | Copy(buf,b->ptr,avail,char); | |
1521 | } | |
1522 | count -= avail; | |
1523 | unread += avail; | |
1524 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1525 | } | |
1526 | } | |
1527 | return unread; | |
760ac839 LW |
1528 | } |
1529 | ||
9e353e3b NIS |
1530 | SSize_t |
1531 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1532 | { |
9e353e3b NIS |
1533 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1534 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1535 | Size_t written = 0; | |
1536 | if (!b->buf) | |
1537 | PerlIOBuf_alloc_buf(b); | |
1538 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
1539 | return 0; | |
1540 | while (count > 0) | |
1541 | { | |
1542 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1543 | if ((SSize_t) count < avail) | |
1544 | avail = count; | |
1545 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1546 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1547 | { | |
1548 | while (avail > 0) | |
1549 | { | |
1550 | int ch = *buf++; | |
1551 | *(b->ptr)++ = ch; | |
1552 | count--; | |
1553 | avail--; | |
1554 | written++; | |
1555 | if (ch == '\n') | |
1556 | { | |
1557 | PerlIO_flush(f); | |
1558 | break; | |
1559 | } | |
1560 | } | |
1561 | } | |
1562 | else | |
1563 | { | |
1564 | if (avail) | |
1565 | { | |
1566 | Copy(buf,b->ptr,avail,char); | |
1567 | count -= avail; | |
1568 | buf += avail; | |
1569 | written += avail; | |
1570 | b->ptr += avail; | |
1571 | } | |
1572 | } | |
1573 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1574 | PerlIO_flush(f); | |
1575 | } | |
1576 | return written; | |
1577 | } | |
1578 | ||
1579 | IV | |
1580 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1581 | { | |
1582 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1583 | int code; | |
1584 | code = PerlIO_flush(f); | |
1585 | if (code == 0) | |
1586 | { | |
1587 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1588 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1589 | if (code == 0) | |
1590 | { | |
1591 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1592 | } | |
1593 | } | |
1594 | return code; | |
1595 | } | |
1596 | ||
1597 | Off_t | |
1598 | PerlIOBuf_tell(PerlIO *f) | |
1599 | { | |
1600 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1601 | Off_t posn = b->posn; | |
1602 | if (b->buf) | |
1603 | posn += (b->ptr - b->buf); | |
1604 | return posn; | |
1605 | } | |
1606 | ||
1607 | IV | |
1608 | PerlIOBuf_close(PerlIO *f) | |
1609 | { | |
1610 | IV code = PerlIOBase_close(f); | |
1611 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1612 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1613 | { |
9e353e3b | 1614 | Safefree(b->buf); |
6f9d8c32 | 1615 | } |
9e353e3b NIS |
1616 | b->buf = NULL; |
1617 | b->ptr = b->end = b->buf; | |
1618 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1619 | return code; | |
760ac839 LW |
1620 | } |
1621 | ||
760ac839 | 1622 | void |
9e353e3b | 1623 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1624 | { |
6f9d8c32 NIS |
1625 | if (f) |
1626 | { | |
9e353e3b | 1627 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1628 | } |
760ac839 LW |
1629 | } |
1630 | ||
760ac839 | 1631 | void |
9e353e3b | 1632 | PerlIOBuf_set_cnt(PerlIO *f, int cnt) |
760ac839 | 1633 | { |
9e353e3b NIS |
1634 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1635 | dTHX; | |
1636 | if (!b->buf) | |
1637 | PerlIOBuf_alloc_buf(b); | |
1638 | b->ptr = b->end - cnt; | |
1639 | assert(b->ptr >= b->buf); | |
1640 | } | |
1641 | ||
1642 | STDCHAR * | |
1643 | PerlIOBuf_get_ptr(PerlIO *f) | |
1644 | { | |
1645 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1646 | if (!b->buf) | |
1647 | PerlIOBuf_alloc_buf(b); | |
1648 | return b->ptr; | |
1649 | } | |
1650 | ||
05d1247b | 1651 | SSize_t |
9e353e3b NIS |
1652 | PerlIOBuf_get_cnt(PerlIO *f) |
1653 | { | |
1654 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1655 | if (!b->buf) | |
1656 | PerlIOBuf_alloc_buf(b); | |
1657 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1658 | return (b->end - b->ptr); | |
1659 | return 0; | |
1660 | } | |
1661 | ||
1662 | STDCHAR * | |
1663 | PerlIOBuf_get_base(PerlIO *f) | |
1664 | { | |
1665 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1666 | if (!b->buf) | |
1667 | PerlIOBuf_alloc_buf(b); | |
1668 | return b->buf; | |
1669 | } | |
1670 | ||
1671 | Size_t | |
1672 | PerlIOBuf_bufsiz(PerlIO *f) | |
1673 | { | |
1674 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1675 | if (!b->buf) | |
1676 | PerlIOBuf_alloc_buf(b); | |
1677 | return (b->end - b->buf); | |
1678 | } | |
1679 | ||
1680 | void | |
05d1247b | 1681 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
1682 | { |
1683 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1684 | if (!b->buf) | |
1685 | PerlIOBuf_alloc_buf(b); | |
1686 | b->ptr = ptr; | |
1687 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1688 | { |
9e353e3b NIS |
1689 | dTHX; |
1690 | assert(PerlIO_get_cnt(f) == cnt); | |
1691 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1692 | } |
9e353e3b | 1693 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1694 | } |
1695 | ||
9e353e3b NIS |
1696 | PerlIO_funcs PerlIO_perlio = { |
1697 | "perlio", | |
1698 | sizeof(PerlIOBuf), | |
1699 | 0, | |
1700 | PerlIOBase_fileno, | |
1701 | PerlIOBuf_fdopen, | |
1702 | PerlIOBuf_open, | |
1703 | PerlIOBase_reopen, | |
1704 | PerlIOBuf_read, | |
1705 | PerlIOBuf_unread, | |
1706 | PerlIOBuf_write, | |
1707 | PerlIOBuf_seek, | |
1708 | PerlIOBuf_tell, | |
1709 | PerlIOBuf_close, | |
1710 | PerlIOBuf_flush, | |
1711 | PerlIOBase_eof, | |
1712 | PerlIOBase_error, | |
1713 | PerlIOBase_clearerr, | |
1714 | PerlIOBuf_setlinebuf, | |
1715 | PerlIOBuf_get_base, | |
1716 | PerlIOBuf_bufsiz, | |
1717 | PerlIOBuf_get_ptr, | |
1718 | PerlIOBuf_get_cnt, | |
1719 | PerlIOBuf_set_ptrcnt, | |
1720 | }; | |
1721 | ||
1722 | void | |
1723 | PerlIO_init(void) | |
760ac839 | 1724 | { |
9e353e3b | 1725 | if (!_perlio) |
6f9d8c32 | 1726 | { |
9e353e3b | 1727 | atexit(&PerlIO_cleanup); |
6f9d8c32 | 1728 | } |
760ac839 LW |
1729 | } |
1730 | ||
9e353e3b NIS |
1731 | #undef PerlIO_stdin |
1732 | PerlIO * | |
1733 | PerlIO_stdin(void) | |
1734 | { | |
1735 | if (!_perlio) | |
f3862f8b | 1736 | PerlIO_stdstreams(); |
05d1247b | 1737 | return &_perlio[1]; |
9e353e3b NIS |
1738 | } |
1739 | ||
1740 | #undef PerlIO_stdout | |
1741 | PerlIO * | |
1742 | PerlIO_stdout(void) | |
1743 | { | |
1744 | if (!_perlio) | |
f3862f8b | 1745 | PerlIO_stdstreams(); |
05d1247b | 1746 | return &_perlio[2]; |
9e353e3b NIS |
1747 | } |
1748 | ||
1749 | #undef PerlIO_stderr | |
1750 | PerlIO * | |
1751 | PerlIO_stderr(void) | |
1752 | { | |
1753 | if (!_perlio) | |
f3862f8b | 1754 | PerlIO_stdstreams(); |
05d1247b | 1755 | return &_perlio[3]; |
9e353e3b NIS |
1756 | } |
1757 | ||
1758 | /*--------------------------------------------------------------------------------------*/ | |
1759 | ||
1760 | #undef PerlIO_getname | |
1761 | char * | |
1762 | PerlIO_getname(PerlIO *f, char *buf) | |
1763 | { | |
1764 | dTHX; | |
1765 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
1766 | return NULL; | |
1767 | } | |
1768 | ||
1769 | ||
1770 | /*--------------------------------------------------------------------------------------*/ | |
1771 | /* Functions which can be called on any kind of PerlIO implemented | |
1772 | in terms of above | |
1773 | */ | |
1774 | ||
1775 | #undef PerlIO_getc | |
6f9d8c32 | 1776 | int |
9e353e3b | 1777 | PerlIO_getc(PerlIO *f) |
760ac839 | 1778 | { |
9e353e3b NIS |
1779 | STDCHAR buf; |
1780 | int count = PerlIO_read(f,&buf,1); | |
1781 | if (count == 1) | |
1782 | return (unsigned char) buf; | |
1783 | return -1; | |
760ac839 LW |
1784 | } |
1785 | ||
9e353e3b NIS |
1786 | #undef PerlIO_putc |
1787 | int | |
1788 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 1789 | { |
9e353e3b NIS |
1790 | STDCHAR buf = ch; |
1791 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
1792 | } |
1793 | ||
9e353e3b | 1794 | #undef PerlIO_puts |
760ac839 | 1795 | int |
9e353e3b | 1796 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 1797 | { |
9e353e3b NIS |
1798 | STRLEN len = strlen(s); |
1799 | return PerlIO_write(f,s,len); | |
760ac839 LW |
1800 | } |
1801 | ||
1802 | #undef PerlIO_rewind | |
1803 | void | |
c78749f2 | 1804 | PerlIO_rewind(PerlIO *f) |
760ac839 | 1805 | { |
6f9d8c32 | 1806 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 1807 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
1808 | } |
1809 | ||
1810 | #undef PerlIO_vprintf | |
1811 | int | |
1812 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
1813 | { | |
1814 | dTHX; | |
bb9950b7 | 1815 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
1816 | char *s; |
1817 | STRLEN len; | |
1818 | sv_vcatpvf(sv, fmt, &ap); | |
1819 | s = SvPV(sv,len); | |
bb9950b7 | 1820 | return PerlIO_write(f,s,len); |
760ac839 LW |
1821 | } |
1822 | ||
1823 | #undef PerlIO_printf | |
6f9d8c32 | 1824 | int |
760ac839 | 1825 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
1826 | { |
1827 | va_list ap; | |
1828 | int result; | |
760ac839 | 1829 | va_start(ap,fmt); |
6f9d8c32 | 1830 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
1831 | va_end(ap); |
1832 | return result; | |
1833 | } | |
1834 | ||
1835 | #undef PerlIO_stdoutf | |
6f9d8c32 | 1836 | int |
760ac839 | 1837 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
1838 | { |
1839 | va_list ap; | |
1840 | int result; | |
760ac839 | 1841 | va_start(ap,fmt); |
760ac839 LW |
1842 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
1843 | va_end(ap); | |
1844 | return result; | |
1845 | } | |
1846 | ||
1847 | #undef PerlIO_tmpfile | |
1848 | PerlIO * | |
c78749f2 | 1849 | PerlIO_tmpfile(void) |
760ac839 | 1850 | { |
6f9d8c32 | 1851 | dTHX; |
b1ef6e3b | 1852 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
1853 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
1854 | int fd = mkstemp(SvPVX(sv)); | |
1855 | PerlIO *f = NULL; | |
1856 | if (fd >= 0) | |
1857 | { | |
b1ef6e3b | 1858 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
1859 | if (f) |
1860 | { | |
9e353e3b | 1861 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 NIS |
1862 | } |
1863 | unlink(SvPVX(sv)); | |
1864 | SvREFCNT_dec(sv); | |
1865 | } | |
1866 | return f; | |
760ac839 LW |
1867 | } |
1868 | ||
6f9d8c32 NIS |
1869 | #undef HAS_FSETPOS |
1870 | #undef HAS_FGETPOS | |
1871 | ||
760ac839 LW |
1872 | #endif /* USE_SFIO */ |
1873 | #endif /* PERLIO_IS_STDIO */ | |
1874 | ||
9e353e3b NIS |
1875 | /*======================================================================================*/ |
1876 | /* Now some functions in terms of above which may be needed even if | |
1877 | we are not in true PerlIO mode | |
1878 | */ | |
1879 | ||
760ac839 LW |
1880 | #ifndef HAS_FSETPOS |
1881 | #undef PerlIO_setpos | |
1882 | int | |
c78749f2 | 1883 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 1884 | { |
6f9d8c32 | 1885 | return PerlIO_seek(f,*pos,0); |
760ac839 | 1886 | } |
c411622e | 1887 | #else |
1888 | #ifndef PERLIO_IS_STDIO | |
1889 | #undef PerlIO_setpos | |
1890 | int | |
c78749f2 | 1891 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 1892 | { |
2d4389e4 | 1893 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1894 | return fsetpos64(f, pos); |
1895 | #else | |
c411622e | 1896 | return fsetpos(f, pos); |
d9b3e12d | 1897 | #endif |
c411622e | 1898 | } |
1899 | #endif | |
760ac839 LW |
1900 | #endif |
1901 | ||
1902 | #ifndef HAS_FGETPOS | |
1903 | #undef PerlIO_getpos | |
1904 | int | |
c78749f2 | 1905 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
1906 | { |
1907 | *pos = PerlIO_tell(f); | |
1908 | return 0; | |
1909 | } | |
c411622e | 1910 | #else |
1911 | #ifndef PERLIO_IS_STDIO | |
1912 | #undef PerlIO_getpos | |
1913 | int | |
c78749f2 | 1914 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 1915 | { |
2d4389e4 | 1916 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1917 | return fgetpos64(f, pos); |
1918 | #else | |
c411622e | 1919 | return fgetpos(f, pos); |
d9b3e12d | 1920 | #endif |
c411622e | 1921 | } |
1922 | #endif | |
760ac839 LW |
1923 | #endif |
1924 | ||
1925 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
1926 | ||
1927 | int | |
c78749f2 | 1928 | vprintf(char *pat, char *args) |
662a7e3f CS |
1929 | { |
1930 | _doprnt(pat, args, stdout); | |
1931 | return 0; /* wrong, but perl doesn't use the return value */ | |
1932 | } | |
1933 | ||
1934 | int | |
c78749f2 | 1935 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
1936 | { |
1937 | _doprnt(pat, args, fd); | |
1938 | return 0; /* wrong, but perl doesn't use the return value */ | |
1939 | } | |
1940 | ||
1941 | #endif | |
1942 | ||
1943 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 1944 | int |
8ac85365 | 1945 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
1946 | { |
1947 | int val = vsprintf(s, fmt, ap); | |
1948 | if (n >= 0) | |
1949 | { | |
8c86a920 | 1950 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 1951 | { |
bf49b057 GS |
1952 | dTHX; |
1953 | PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n"); | |
1954 | my_exit(1); | |
760ac839 LW |
1955 | } |
1956 | } | |
1957 | return val; | |
1958 | } | |
1959 | #endif | |
1960 | ||
1961 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 1962 | int |
760ac839 | 1963 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
1964 | { |
1965 | va_list ap; | |
1966 | int result; | |
760ac839 | 1967 | va_start(ap,fmt); |
760ac839 LW |
1968 | result = PerlIO_vsprintf(s, n, fmt, ap); |
1969 | va_end(ap); | |
1970 | return result; | |
1971 | } | |
1972 | #endif | |
1973 | ||
c5be433b GS |
1974 | #endif /* !PERL_IMPLICIT_SYS */ |
1975 |