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 | |
313ca112 | 375 | Perl_warn(aTHX_ "Unknown layer %.*s",(e-s),s); |
f3862f8b NIS |
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 | ||
313ca112 NIS |
516 | #undef PerlIO_unread |
517 | SSize_t | |
518 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 519 | { |
313ca112 | 520 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
521 | } |
522 | ||
9e353e3b NIS |
523 | #undef PerlIO_write |
524 | SSize_t | |
525 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 526 | { |
9e353e3b | 527 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
528 | } |
529 | ||
9e353e3b | 530 | #undef PerlIO_seek |
6f9d8c32 | 531 | int |
9e353e3b | 532 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 533 | { |
9e353e3b | 534 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
535 | } |
536 | ||
9e353e3b NIS |
537 | #undef PerlIO_tell |
538 | Off_t | |
539 | PerlIO_tell(PerlIO *f) | |
760ac839 | 540 | { |
9e353e3b | 541 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
542 | } |
543 | ||
9e353e3b | 544 | #undef PerlIO_flush |
6f9d8c32 | 545 | int |
9e353e3b | 546 | PerlIO_flush(PerlIO *f) |
760ac839 | 547 | { |
6f9d8c32 NIS |
548 | if (f) |
549 | { | |
9e353e3b | 550 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 551 | } |
9e353e3b | 552 | else |
6f9d8c32 | 553 | { |
05d1247b | 554 | PerlIO **table = &_perlio; |
9e353e3b | 555 | int code = 0; |
05d1247b | 556 | while ((f = *table)) |
6f9d8c32 | 557 | { |
05d1247b NIS |
558 | int i; |
559 | table = (PerlIO **)(f++); | |
560 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
561 | { |
562 | if (*f && PerlIO_flush(f) != 0) | |
563 | code = -1; | |
05d1247b | 564 | f++; |
9e353e3b | 565 | } |
6f9d8c32 | 566 | } |
9e353e3b | 567 | return code; |
6f9d8c32 | 568 | } |
760ac839 LW |
569 | } |
570 | ||
f3862f8b NIS |
571 | #undef PerlIO_isutf8 |
572 | int | |
573 | PerlIO_isutf8(PerlIO *f) | |
574 | { | |
575 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
576 | } | |
577 | ||
9e353e3b | 578 | #undef PerlIO_eof |
6f9d8c32 | 579 | int |
9e353e3b | 580 | PerlIO_eof(PerlIO *f) |
760ac839 | 581 | { |
9e353e3b NIS |
582 | return (*PerlIOBase(f)->tab->Eof)(f); |
583 | } | |
584 | ||
585 | #undef PerlIO_error | |
586 | int | |
587 | PerlIO_error(PerlIO *f) | |
588 | { | |
589 | return (*PerlIOBase(f)->tab->Error)(f); | |
590 | } | |
591 | ||
592 | #undef PerlIO_clearerr | |
593 | void | |
594 | PerlIO_clearerr(PerlIO *f) | |
595 | { | |
596 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
597 | } | |
598 | ||
599 | #undef PerlIO_setlinebuf | |
600 | void | |
601 | PerlIO_setlinebuf(PerlIO *f) | |
602 | { | |
603 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
604 | } | |
605 | ||
606 | #undef PerlIO_has_base | |
607 | int | |
608 | PerlIO_has_base(PerlIO *f) | |
609 | { | |
610 | if (f && *f) | |
6f9d8c32 | 611 | { |
9e353e3b | 612 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 613 | } |
9e353e3b | 614 | return 0; |
760ac839 LW |
615 | } |
616 | ||
9e353e3b NIS |
617 | #undef PerlIO_fast_gets |
618 | int | |
619 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 620 | { |
9e353e3b | 621 | if (f && *f) |
6f9d8c32 | 622 | { |
c7fc522f NIS |
623 | PerlIOl *l = PerlIOBase(f); |
624 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 625 | } |
9e353e3b NIS |
626 | return 0; |
627 | } | |
628 | ||
629 | #undef PerlIO_has_cntptr | |
630 | int | |
631 | PerlIO_has_cntptr(PerlIO *f) | |
632 | { | |
633 | if (f && *f) | |
634 | { | |
635 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
636 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
637 | } | |
638 | return 0; | |
639 | } | |
640 | ||
641 | #undef PerlIO_canset_cnt | |
642 | int | |
643 | PerlIO_canset_cnt(PerlIO *f) | |
644 | { | |
645 | if (f && *f) | |
646 | { | |
c7fc522f NIS |
647 | PerlIOl *l = PerlIOBase(f); |
648 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 649 | } |
c7fc522f | 650 | return 0; |
760ac839 LW |
651 | } |
652 | ||
653 | #undef PerlIO_get_base | |
888911fc | 654 | STDCHAR * |
a20bf0c3 | 655 | PerlIO_get_base(PerlIO *f) |
760ac839 | 656 | { |
9e353e3b NIS |
657 | return (*PerlIOBase(f)->tab->Get_base)(f); |
658 | } | |
659 | ||
660 | #undef PerlIO_get_bufsiz | |
661 | int | |
662 | PerlIO_get_bufsiz(PerlIO *f) | |
663 | { | |
664 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
665 | } | |
666 | ||
667 | #undef PerlIO_get_ptr | |
668 | STDCHAR * | |
669 | PerlIO_get_ptr(PerlIO *f) | |
670 | { | |
671 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
672 | } | |
673 | ||
674 | #undef PerlIO_get_cnt | |
05d1247b | 675 | int |
9e353e3b NIS |
676 | PerlIO_get_cnt(PerlIO *f) |
677 | { | |
678 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
679 | } | |
680 | ||
681 | #undef PerlIO_set_cnt | |
682 | void | |
05d1247b | 683 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 684 | { |
f3862f8b | 685 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
686 | } |
687 | ||
688 | #undef PerlIO_set_ptrcnt | |
689 | void | |
05d1247b | 690 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 691 | { |
f3862f8b | 692 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
693 | } |
694 | ||
695 | /*--------------------------------------------------------------------------------------*/ | |
696 | /* "Methods" of the "base class" */ | |
697 | ||
698 | IV | |
699 | PerlIOBase_fileno(PerlIO *f) | |
700 | { | |
701 | return PerlIO_fileno(PerlIONext(f)); | |
702 | } | |
703 | ||
704 | PerlIO * | |
705 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
706 | { | |
707 | PerlIOl *l = NULL; | |
708 | Newc('L',l,tab->size,char,PerlIOl); | |
709 | if (l) | |
6f9d8c32 | 710 | { |
9e353e3b NIS |
711 | Zero(l,tab->size,char); |
712 | l->next = *f; | |
713 | l->tab = tab; | |
714 | *f = l; | |
715 | PerlIOBase_init(f,mode); | |
6f9d8c32 | 716 | } |
9e353e3b | 717 | return f; |
760ac839 LW |
718 | } |
719 | ||
9e353e3b NIS |
720 | SSize_t |
721 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
722 | { | |
723 | Off_t old = PerlIO_tell(f); | |
724 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
725 | { | |
726 | Off_t new = PerlIO_tell(f); | |
727 | return old - new; | |
728 | } | |
729 | return 0; | |
730 | } | |
731 | ||
732 | IV | |
733 | PerlIOBase_sync(PerlIO *f) | |
734 | { | |
735 | return 0; | |
736 | } | |
737 | ||
738 | IV | |
739 | PerlIOBase_close(PerlIO *f) | |
740 | { | |
741 | IV code = 0; | |
742 | if (PerlIO_flush(f) != 0) | |
743 | code = -1; | |
744 | if (PerlIO_close(PerlIONext(f)) != 0) | |
745 | code = -1; | |
746 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
747 | return code; | |
748 | } | |
749 | ||
750 | IV | |
751 | PerlIOBase_eof(PerlIO *f) | |
752 | { | |
753 | if (f && *f) | |
754 | { | |
755 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
756 | } | |
757 | return 1; | |
758 | } | |
759 | ||
760 | IV | |
761 | PerlIOBase_error(PerlIO *f) | |
762 | { | |
763 | if (f && *f) | |
764 | { | |
765 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
766 | } | |
767 | return 1; | |
768 | } | |
769 | ||
770 | void | |
771 | PerlIOBase_clearerr(PerlIO *f) | |
772 | { | |
773 | if (f && *f) | |
774 | { | |
775 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
776 | } | |
777 | } | |
778 | ||
779 | void | |
780 | PerlIOBase_setlinebuf(PerlIO *f) | |
781 | { | |
782 | ||
783 | } | |
784 | ||
785 | ||
786 | ||
787 | /*--------------------------------------------------------------------------------------*/ | |
788 | /* Bottom-most level for UNIX-like case */ | |
789 | ||
790 | typedef struct | |
791 | { | |
792 | struct _PerlIO base; /* The generic part */ | |
793 | int fd; /* UNIX like file descriptor */ | |
794 | int oflags; /* open/fcntl flags */ | |
795 | } PerlIOUnix; | |
796 | ||
6f9d8c32 | 797 | int |
9e353e3b | 798 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 799 | { |
9e353e3b NIS |
800 | int oflags = -1; |
801 | switch(*mode) | |
802 | { | |
803 | case 'r': | |
804 | oflags = O_RDONLY; | |
805 | if (*++mode == '+') | |
806 | { | |
807 | oflags = O_RDWR; | |
808 | mode++; | |
809 | } | |
810 | break; | |
811 | ||
812 | case 'w': | |
813 | oflags = O_CREAT|O_TRUNC; | |
814 | if (*++mode == '+') | |
815 | { | |
816 | oflags |= O_RDWR; | |
817 | mode++; | |
818 | } | |
819 | else | |
820 | oflags |= O_WRONLY; | |
821 | break; | |
822 | ||
823 | case 'a': | |
824 | oflags = O_CREAT|O_APPEND; | |
825 | if (*++mode == '+') | |
826 | { | |
827 | oflags |= O_RDWR; | |
828 | mode++; | |
829 | } | |
830 | else | |
831 | oflags |= O_WRONLY; | |
832 | break; | |
833 | } | |
834 | if (*mode || oflags == -1) | |
6f9d8c32 | 835 | { |
9e353e3b NIS |
836 | errno = EINVAL; |
837 | oflags = -1; | |
6f9d8c32 | 838 | } |
9e353e3b NIS |
839 | return oflags; |
840 | } | |
841 | ||
842 | IV | |
843 | PerlIOUnix_fileno(PerlIO *f) | |
844 | { | |
845 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
846 | } | |
847 | ||
848 | PerlIO * | |
849 | PerlIOUnix_fdopen(int fd,const char *mode) | |
850 | { | |
851 | PerlIO *f = NULL; | |
c7fc522f NIS |
852 | if (*mode == 'I') |
853 | mode++; | |
9e353e3b NIS |
854 | if (fd >= 0) |
855 | { | |
856 | int oflags = PerlIOUnix_oflags(mode); | |
857 | if (oflags != -1) | |
858 | { | |
859 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
860 | s->fd = fd; | |
861 | s->oflags = oflags; | |
862 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
863 | } | |
864 | } | |
865 | return f; | |
866 | } | |
867 | ||
868 | PerlIO * | |
869 | PerlIOUnix_open(const char *path,const char *mode) | |
870 | { | |
871 | PerlIO *f = NULL; | |
872 | int oflags = PerlIOUnix_oflags(mode); | |
873 | if (oflags != -1) | |
874 | { | |
875 | int fd = open(path,oflags,0666); | |
876 | if (fd >= 0) | |
877 | { | |
878 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
879 | s->fd = fd; | |
880 | s->oflags = oflags; | |
881 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
882 | } | |
883 | } | |
884 | return f; | |
760ac839 LW |
885 | } |
886 | ||
760ac839 | 887 | int |
9e353e3b | 888 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 889 | { |
9e353e3b NIS |
890 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
891 | int oflags = PerlIOUnix_oflags(mode); | |
892 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
893 | (*PerlIOBase(f)->tab->Close)(f); | |
894 | if (oflags != -1) | |
895 | { | |
896 | int fd = open(path,oflags,0666); | |
897 | if (fd >= 0) | |
898 | { | |
899 | s->fd = fd; | |
900 | s->oflags = oflags; | |
901 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
902 | return 0; | |
903 | } | |
904 | } | |
905 | return -1; | |
906 | } | |
907 | ||
908 | SSize_t | |
909 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
910 | { | |
911 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
8f24bd79 NIS |
912 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
913 | return 0; | |
9e353e3b NIS |
914 | while (1) |
915 | { | |
916 | SSize_t len = read(fd,vbuf,count); | |
917 | if (len >= 0 || errno != EINTR) | |
918 | return len; | |
919 | } | |
920 | } | |
921 | ||
922 | SSize_t | |
923 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
924 | { | |
925 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
926 | while (1) | |
927 | { | |
928 | SSize_t len = write(fd,vbuf,count); | |
929 | if (len >= 0 || errno != EINTR) | |
930 | return len; | |
931 | } | |
932 | } | |
933 | ||
934 | IV | |
935 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
936 | { | |
937 | Off_t new = lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); | |
938 | return (new == (Off_t) -1) ? -1 : 0; | |
939 | } | |
940 | ||
941 | Off_t | |
942 | PerlIOUnix_tell(PerlIO *f) | |
943 | { | |
944 | return lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); | |
945 | } | |
946 | ||
947 | IV | |
948 | PerlIOUnix_close(PerlIO *f) | |
949 | { | |
950 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
951 | int code = 0; | |
952 | while (close(fd) != 0) | |
953 | { | |
954 | if (errno != EINTR) | |
955 | { | |
956 | code = -1; | |
957 | break; | |
958 | } | |
959 | } | |
960 | if (code == 0) | |
961 | { | |
962 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
963 | } | |
964 | return code; | |
965 | } | |
966 | ||
967 | PerlIO_funcs PerlIO_unix = { | |
968 | "unix", | |
969 | sizeof(PerlIOUnix), | |
970 | 0, | |
971 | PerlIOUnix_fileno, | |
972 | PerlIOUnix_fdopen, | |
973 | PerlIOUnix_open, | |
974 | PerlIOUnix_reopen, | |
975 | PerlIOUnix_read, | |
976 | PerlIOBase_unread, | |
977 | PerlIOUnix_write, | |
978 | PerlIOUnix_seek, | |
979 | PerlIOUnix_tell, | |
980 | PerlIOUnix_close, | |
981 | PerlIOBase_sync, | |
982 | PerlIOBase_eof, | |
983 | PerlIOBase_error, | |
984 | PerlIOBase_clearerr, | |
985 | PerlIOBase_setlinebuf, | |
986 | NULL, /* get_base */ | |
987 | NULL, /* get_bufsiz */ | |
988 | NULL, /* get_ptr */ | |
989 | NULL, /* get_cnt */ | |
990 | NULL, /* set_ptrcnt */ | |
991 | }; | |
992 | ||
993 | /*--------------------------------------------------------------------------------------*/ | |
994 | /* stdio as a layer */ | |
995 | ||
996 | typedef struct | |
997 | { | |
998 | struct _PerlIO base; | |
999 | FILE * stdio; /* The stream */ | |
1000 | } PerlIOStdio; | |
1001 | ||
1002 | IV | |
1003 | PerlIOStdio_fileno(PerlIO *f) | |
1004 | { | |
1005 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1006 | } | |
1007 | ||
1008 | ||
1009 | PerlIO * | |
1010 | PerlIOStdio_fdopen(int fd,const char *mode) | |
1011 | { | |
1012 | PerlIO *f = NULL; | |
c7fc522f NIS |
1013 | int init = 0; |
1014 | if (*mode == 'I') | |
1015 | { | |
1016 | init = 1; | |
1017 | mode++; | |
1018 | } | |
9e353e3b NIS |
1019 | if (fd >= 0) |
1020 | { | |
c7fc522f NIS |
1021 | FILE *stdio = NULL; |
1022 | if (init) | |
1023 | { | |
1024 | switch(fd) | |
1025 | { | |
1026 | case 0: | |
1027 | stdio = stdin; | |
1028 | break; | |
1029 | case 1: | |
1030 | stdio = stdout; | |
1031 | break; | |
1032 | case 2: | |
1033 | stdio = stderr; | |
1034 | break; | |
1035 | } | |
1036 | } | |
1037 | else | |
1038 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
1039 | if (stdio) |
1040 | { | |
1041 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
1042 | s->stdio = stdio; | |
1043 | } | |
1044 | } | |
1045 | return f; | |
1046 | } | |
1047 | ||
1048 | #undef PerlIO_importFILE | |
1049 | PerlIO * | |
1050 | PerlIO_importFILE(FILE *stdio, int fl) | |
1051 | { | |
1052 | PerlIO *f = NULL; | |
1053 | if (stdio) | |
1054 | { | |
1055 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
1056 | s->stdio = stdio; | |
1057 | } | |
1058 | return f; | |
1059 | } | |
1060 | ||
1061 | PerlIO * | |
1062 | PerlIOStdio_open(const char *path,const char *mode) | |
1063 | { | |
1064 | PerlIO *f = NULL; | |
1065 | FILE *stdio = fopen(path,mode); | |
1066 | if (stdio) | |
1067 | { | |
1068 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
1069 | s->stdio = stdio; | |
1070 | } | |
1071 | return f; | |
760ac839 LW |
1072 | } |
1073 | ||
6f9d8c32 | 1074 | int |
9e353e3b NIS |
1075 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1076 | { | |
1077 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1078 | FILE *stdio = freopen(path,mode,s->stdio); | |
1079 | if (!s->stdio) | |
1080 | return -1; | |
1081 | s->stdio = stdio; | |
1082 | return 0; | |
1083 | } | |
1084 | ||
1085 | SSize_t | |
1086 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1087 | { | |
1088 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 1089 | SSize_t got = 0; |
9e353e3b NIS |
1090 | if (count == 1) |
1091 | { | |
1092 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1093 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1094 | * Linux's stdio does not do that for fread() | |
1095 | */ | |
1096 | int ch = fgetc(s); | |
1097 | if (ch != EOF) | |
1098 | { | |
1099 | *buf = ch; | |
c7fc522f | 1100 | got = 1; |
9e353e3b | 1101 | } |
9e353e3b | 1102 | } |
c7fc522f NIS |
1103 | else |
1104 | got = fread(vbuf,1,count,s); | |
1105 | return got; | |
9e353e3b NIS |
1106 | } |
1107 | ||
1108 | SSize_t | |
1109 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1110 | { | |
1111 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1112 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1113 | SSize_t unread = 0; | |
1114 | while (count > 0) | |
1115 | { | |
1116 | int ch = *buf-- & 0xff; | |
1117 | if (ungetc(ch,s) != ch) | |
1118 | break; | |
1119 | unread++; | |
1120 | count--; | |
1121 | } | |
1122 | return unread; | |
1123 | } | |
1124 | ||
1125 | SSize_t | |
1126 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1127 | { | |
1128 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
1129 | } | |
1130 | ||
1131 | IV | |
1132 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1133 | { | |
c7fc522f NIS |
1134 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1135 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1136 | } |
1137 | ||
1138 | Off_t | |
1139 | PerlIOStdio_tell(PerlIO *f) | |
1140 | { | |
c7fc522f NIS |
1141 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1142 | return ftell(stdio); | |
9e353e3b NIS |
1143 | } |
1144 | ||
1145 | IV | |
1146 | PerlIOStdio_close(PerlIO *f) | |
1147 | { | |
1148 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1149 | } | |
1150 | ||
1151 | IV | |
1152 | PerlIOStdio_flush(PerlIO *f) | |
1153 | { | |
1154 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1155 | return fflush(stdio); | |
1156 | } | |
1157 | ||
1158 | IV | |
1159 | PerlIOStdio_eof(PerlIO *f) | |
1160 | { | |
1161 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1162 | } | |
1163 | ||
1164 | IV | |
1165 | PerlIOStdio_error(PerlIO *f) | |
1166 | { | |
1167 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1168 | } | |
1169 | ||
1170 | void | |
1171 | PerlIOStdio_clearerr(PerlIO *f) | |
1172 | { | |
1173 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1174 | } | |
1175 | ||
1176 | void | |
1177 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1178 | { | |
1179 | #ifdef HAS_SETLINEBUF | |
1180 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1181 | #else | |
1182 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1183 | #endif | |
1184 | } | |
1185 | ||
1186 | #ifdef FILE_base | |
1187 | STDCHAR * | |
1188 | PerlIOStdio_get_base(PerlIO *f) | |
1189 | { | |
1190 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1191 | return FILE_base(stdio); | |
1192 | } | |
1193 | ||
1194 | Size_t | |
1195 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1196 | { | |
1197 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1198 | return FILE_bufsiz(stdio); | |
1199 | } | |
1200 | #endif | |
1201 | ||
1202 | #ifdef USE_STDIO_PTR | |
1203 | STDCHAR * | |
1204 | PerlIOStdio_get_ptr(PerlIO *f) | |
1205 | { | |
1206 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1207 | return FILE_ptr(stdio); | |
1208 | } | |
1209 | ||
1210 | SSize_t | |
1211 | PerlIOStdio_get_cnt(PerlIO *f) | |
1212 | { | |
1213 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1214 | return FILE_cnt(stdio); | |
1215 | } | |
1216 | ||
1217 | void | |
1218 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1219 | { | |
1220 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1221 | if (ptr != NULL) | |
1222 | { | |
1223 | #ifdef STDIO_PTR_LVALUE | |
1224 | FILE_ptr(stdio) = ptr; | |
1225 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1226 | if (FILE_cnt(stdio) != (cnt)) | |
1227 | { | |
1228 | dTHX; | |
1229 | assert(FILE_cnt(stdio) == (cnt)); | |
1230 | } | |
1231 | #endif | |
1232 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1233 | /* Setting ptr _does_ change cnt - we are done */ | |
1234 | return; | |
1235 | #endif | |
1236 | #else /* STDIO_PTR_LVALUE */ | |
1237 | abort(); | |
1238 | #endif /* STDIO_PTR_LVALUE */ | |
1239 | } | |
1240 | /* Now (or only) set cnt */ | |
1241 | #ifdef STDIO_CNT_LVALUE | |
1242 | FILE_cnt(stdio) = cnt; | |
1243 | #else /* STDIO_CNT_LVALUE */ | |
1244 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1245 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1246 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1247 | abort(); | |
1248 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1249 | #endif /* STDIO_CNT_LVALUE */ | |
1250 | } | |
1251 | ||
1252 | #endif | |
1253 | ||
1254 | PerlIO_funcs PerlIO_stdio = { | |
1255 | "stdio", | |
1256 | sizeof(PerlIOStdio), | |
1257 | 0, | |
1258 | PerlIOStdio_fileno, | |
1259 | PerlIOStdio_fdopen, | |
1260 | PerlIOStdio_open, | |
1261 | PerlIOStdio_reopen, | |
1262 | PerlIOStdio_read, | |
1263 | PerlIOStdio_unread, | |
1264 | PerlIOStdio_write, | |
1265 | PerlIOStdio_seek, | |
1266 | PerlIOStdio_tell, | |
1267 | PerlIOStdio_close, | |
1268 | PerlIOStdio_flush, | |
1269 | PerlIOStdio_eof, | |
1270 | PerlIOStdio_error, | |
1271 | PerlIOStdio_clearerr, | |
1272 | PerlIOStdio_setlinebuf, | |
1273 | #ifdef FILE_base | |
1274 | PerlIOStdio_get_base, | |
1275 | PerlIOStdio_get_bufsiz, | |
1276 | #else | |
1277 | NULL, | |
1278 | NULL, | |
1279 | #endif | |
1280 | #ifdef USE_STDIO_PTR | |
1281 | PerlIOStdio_get_ptr, | |
1282 | PerlIOStdio_get_cnt, | |
1283 | #if (defined(STDIO_PTR_LVALUE) && \ | |
1284 | (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) | |
1285 | PerlIOStdio_set_ptrcnt | |
1286 | #else /* STDIO_PTR_LVALUE */ | |
1287 | NULL | |
1288 | #endif /* STDIO_PTR_LVALUE */ | |
1289 | #else /* USE_STDIO_PTR */ | |
1290 | NULL, | |
1291 | NULL, | |
1292 | NULL | |
1293 | #endif /* USE_STDIO_PTR */ | |
1294 | }; | |
1295 | ||
1296 | #undef PerlIO_exportFILE | |
1297 | FILE * | |
1298 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1299 | { | |
1300 | PerlIO_flush(f); | |
1301 | /* Should really push stdio discipline when we have them */ | |
1302 | return fdopen(PerlIO_fileno(f),"r+"); | |
1303 | } | |
1304 | ||
1305 | #undef PerlIO_findFILE | |
1306 | FILE * | |
1307 | PerlIO_findFILE(PerlIO *f) | |
1308 | { | |
1309 | return PerlIO_exportFILE(f,0); | |
1310 | } | |
1311 | ||
1312 | #undef PerlIO_releaseFILE | |
1313 | void | |
1314 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1315 | { | |
1316 | } | |
1317 | ||
1318 | /*--------------------------------------------------------------------------------------*/ | |
1319 | /* perlio buffer layer */ | |
1320 | ||
1321 | typedef struct | |
760ac839 | 1322 | { |
9e353e3b NIS |
1323 | struct _PerlIO base; |
1324 | Off_t posn; /* Offset of buf into the file */ | |
1325 | STDCHAR * buf; /* Start of buffer */ | |
1326 | STDCHAR * end; /* End of valid part of buffer */ | |
1327 | STDCHAR * ptr; /* Current position in buffer */ | |
1328 | Size_t bufsiz; /* Size of buffer */ | |
1329 | IV oneword; /* Emergency buffer */ | |
1330 | } PerlIOBuf; | |
1331 | ||
1332 | ||
1333 | PerlIO * | |
1334 | PerlIOBuf_fdopen(int fd, const char *mode) | |
1335 | { | |
1336 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1337 | int init = 0; |
1338 | PerlIO *f; | |
1339 | if (*mode == 'I') | |
1340 | { | |
1341 | init = 1; | |
1342 | mode++; | |
1343 | } | |
1344 | f = (*tab->Fdopen)(fd,mode); | |
6f9d8c32 NIS |
1345 | if (f) |
1346 | { | |
c7fc522f NIS |
1347 | /* Initial stderr is unbuffered */ |
1348 | if (!init || fd != 2) | |
1349 | { | |
1350 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1351 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1352 | } | |
6f9d8c32 | 1353 | } |
9e353e3b | 1354 | return f; |
760ac839 LW |
1355 | } |
1356 | ||
9e353e3b NIS |
1357 | PerlIO * |
1358 | PerlIOBuf_open(const char *path, const char *mode) | |
8c86a920 | 1359 | { |
9e353e3b NIS |
1360 | PerlIO_funcs *tab = PerlIO_default_btm(); |
1361 | PerlIO *f = (*tab->Open)(path,mode); | |
1362 | if (f) | |
1363 | { | |
1364 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1365 | b->posn = 0; | |
1366 | } | |
1367 | return f; | |
1368 | } | |
1369 | ||
1370 | int | |
1371 | PerlIOBase_reopen(const char *path, const char *mode, PerlIO *f) | |
1372 | { | |
1373 | return (*PerlIOBase(f)->tab->Reopen)(path,mode,PerlIONext(f)); | |
1374 | } | |
1375 | ||
1376 | void | |
1377 | PerlIOBuf_alloc_buf(PerlIOBuf *b) | |
1378 | { | |
1379 | if (!b->bufsiz) | |
1380 | b->bufsiz = 4096; | |
05d1247b | 1381 | New('B',b->buf,b->bufsiz,STDCHAR); |
9e353e3b NIS |
1382 | if (!b->buf) |
1383 | { | |
1384 | b->buf = (STDCHAR *)&b->oneword; | |
1385 | b->bufsiz = sizeof(b->oneword); | |
1386 | } | |
1387 | b->ptr = b->buf; | |
1388 | b->end = b->ptr; | |
8c86a920 | 1389 | } |
1390 | ||
9e353e3b NIS |
1391 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1392 | read or write state | |
1393 | */ | |
1394 | IV | |
1395 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1396 | { |
9e353e3b NIS |
1397 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1398 | int code = 0; | |
1399 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1400 | { | |
1401 | /* write() the buffer */ | |
1402 | STDCHAR *p = b->buf; | |
1403 | int count; | |
1404 | while (p < b->ptr) | |
1405 | { | |
1406 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1407 | if (count > 0) | |
1408 | { | |
1409 | p += count; | |
1410 | } | |
1411 | else if (count < 0) | |
1412 | { | |
1413 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1414 | code = -1; | |
1415 | break; | |
1416 | } | |
1417 | } | |
1418 | b->posn += (p - b->buf); | |
1419 | } | |
1420 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1421 | { |
9e353e3b NIS |
1422 | /* Note position change */ |
1423 | b->posn += (b->ptr - b->buf); | |
1424 | if (b->ptr < b->end) | |
1425 | { | |
1426 | /* We did not consume all of it */ | |
1427 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1428 | { | |
1429 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1430 | } | |
1431 | } | |
6f9d8c32 | 1432 | } |
9e353e3b NIS |
1433 | b->ptr = b->end = b->buf; |
1434 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1435 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1436 | code = -1; | |
1437 | return code; | |
6f9d8c32 NIS |
1438 | } |
1439 | ||
6f9d8c32 | 1440 | SSize_t |
9e353e3b | 1441 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1442 | { |
9e353e3b | 1443 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1444 | STDCHAR *buf = (STDCHAR *) vbuf; |
1445 | if (f) | |
1446 | { | |
1447 | Size_t got = 0; | |
9e353e3b NIS |
1448 | if (!b->ptr) |
1449 | PerlIOBuf_alloc_buf(b); | |
1450 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
f89522bf | 1451 | return 0; |
6f9d8c32 NIS |
1452 | while (count > 0) |
1453 | { | |
9e353e3b | 1454 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1455 | if ((SSize_t) count < avail) |
1456 | avail = count; | |
1457 | if (avail > 0) | |
1458 | { | |
9e353e3b | 1459 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1460 | got += avail; |
9e353e3b | 1461 | b->ptr += avail; |
6f9d8c32 NIS |
1462 | count -= avail; |
1463 | buf += avail; | |
1464 | } | |
9e353e3b | 1465 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1466 | { |
bb9950b7 | 1467 | PerlIO_flush(f); |
9e353e3b NIS |
1468 | b->ptr = b->end = b->buf; |
1469 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
6f9d8c32 NIS |
1470 | if (avail <= 0) |
1471 | { | |
1472 | if (avail == 0) | |
9e353e3b | 1473 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
6f9d8c32 | 1474 | else |
9e353e3b | 1475 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
6f9d8c32 NIS |
1476 | break; |
1477 | } | |
9e353e3b NIS |
1478 | b->end = b->buf+avail; |
1479 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
6f9d8c32 NIS |
1480 | } |
1481 | } | |
1482 | return got; | |
1483 | } | |
1484 | return 0; | |
1485 | } | |
1486 | ||
9e353e3b NIS |
1487 | SSize_t |
1488 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1489 | { |
9e353e3b NIS |
1490 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1491 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1492 | SSize_t unread = 0; | |
1493 | SSize_t avail; | |
1494 | if (!b->buf) | |
1495 | PerlIOBuf_alloc_buf(b); | |
1496 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1497 | PerlIO_flush(f); | |
1498 | if (b->buf) | |
1499 | { | |
1500 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1501 | { | |
1502 | avail = (b->ptr - b->buf); | |
1503 | if (avail > (SSize_t) count) | |
1504 | avail = count; | |
1505 | b->ptr -= avail; | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | avail = b->bufsiz; | |
1510 | if (avail > (SSize_t) count) | |
1511 | avail = count; | |
1512 | b->end = b->ptr + avail; | |
1513 | } | |
1514 | if (avail > 0) | |
1515 | { | |
1516 | buf -= avail; | |
1517 | if (buf != b->ptr) | |
1518 | { | |
1519 | Copy(buf,b->ptr,avail,char); | |
1520 | } | |
1521 | count -= avail; | |
1522 | unread += avail; | |
1523 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1524 | } | |
1525 | } | |
1526 | return unread; | |
760ac839 LW |
1527 | } |
1528 | ||
9e353e3b NIS |
1529 | SSize_t |
1530 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1531 | { |
9e353e3b NIS |
1532 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1533 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1534 | Size_t written = 0; | |
1535 | if (!b->buf) | |
1536 | PerlIOBuf_alloc_buf(b); | |
1537 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
1538 | return 0; | |
1539 | while (count > 0) | |
1540 | { | |
1541 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1542 | if ((SSize_t) count < avail) | |
1543 | avail = count; | |
1544 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1545 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1546 | { | |
1547 | while (avail > 0) | |
1548 | { | |
1549 | int ch = *buf++; | |
1550 | *(b->ptr)++ = ch; | |
1551 | count--; | |
1552 | avail--; | |
1553 | written++; | |
1554 | if (ch == '\n') | |
1555 | { | |
1556 | PerlIO_flush(f); | |
1557 | break; | |
1558 | } | |
1559 | } | |
1560 | } | |
1561 | else | |
1562 | { | |
1563 | if (avail) | |
1564 | { | |
1565 | Copy(buf,b->ptr,avail,char); | |
1566 | count -= avail; | |
1567 | buf += avail; | |
1568 | written += avail; | |
1569 | b->ptr += avail; | |
1570 | } | |
1571 | } | |
1572 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1573 | PerlIO_flush(f); | |
1574 | } | |
1575 | return written; | |
1576 | } | |
1577 | ||
1578 | IV | |
1579 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1580 | { | |
1581 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1582 | int code; | |
1583 | code = PerlIO_flush(f); | |
1584 | if (code == 0) | |
1585 | { | |
1586 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1587 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1588 | if (code == 0) | |
1589 | { | |
1590 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1591 | } | |
1592 | } | |
1593 | return code; | |
1594 | } | |
1595 | ||
1596 | Off_t | |
1597 | PerlIOBuf_tell(PerlIO *f) | |
1598 | { | |
1599 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1600 | Off_t posn = b->posn; | |
1601 | if (b->buf) | |
1602 | posn += (b->ptr - b->buf); | |
1603 | return posn; | |
1604 | } | |
1605 | ||
1606 | IV | |
1607 | PerlIOBuf_close(PerlIO *f) | |
1608 | { | |
1609 | IV code = PerlIOBase_close(f); | |
1610 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1611 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1612 | { |
9e353e3b | 1613 | Safefree(b->buf); |
6f9d8c32 | 1614 | } |
9e353e3b NIS |
1615 | b->buf = NULL; |
1616 | b->ptr = b->end = b->buf; | |
1617 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1618 | return code; | |
760ac839 LW |
1619 | } |
1620 | ||
760ac839 | 1621 | void |
9e353e3b | 1622 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1623 | { |
6f9d8c32 NIS |
1624 | if (f) |
1625 | { | |
9e353e3b | 1626 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1627 | } |
760ac839 LW |
1628 | } |
1629 | ||
760ac839 | 1630 | void |
9e353e3b | 1631 | PerlIOBuf_set_cnt(PerlIO *f, int cnt) |
760ac839 | 1632 | { |
9e353e3b NIS |
1633 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1634 | dTHX; | |
1635 | if (!b->buf) | |
1636 | PerlIOBuf_alloc_buf(b); | |
1637 | b->ptr = b->end - cnt; | |
1638 | assert(b->ptr >= b->buf); | |
1639 | } | |
1640 | ||
1641 | STDCHAR * | |
1642 | PerlIOBuf_get_ptr(PerlIO *f) | |
1643 | { | |
1644 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1645 | if (!b->buf) | |
1646 | PerlIOBuf_alloc_buf(b); | |
1647 | return b->ptr; | |
1648 | } | |
1649 | ||
05d1247b | 1650 | SSize_t |
9e353e3b NIS |
1651 | PerlIOBuf_get_cnt(PerlIO *f) |
1652 | { | |
1653 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1654 | if (!b->buf) | |
1655 | PerlIOBuf_alloc_buf(b); | |
1656 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1657 | return (b->end - b->ptr); | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | STDCHAR * | |
1662 | PerlIOBuf_get_base(PerlIO *f) | |
1663 | { | |
1664 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1665 | if (!b->buf) | |
1666 | PerlIOBuf_alloc_buf(b); | |
1667 | return b->buf; | |
1668 | } | |
1669 | ||
1670 | Size_t | |
1671 | PerlIOBuf_bufsiz(PerlIO *f) | |
1672 | { | |
1673 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1674 | if (!b->buf) | |
1675 | PerlIOBuf_alloc_buf(b); | |
1676 | return (b->end - b->buf); | |
1677 | } | |
1678 | ||
1679 | void | |
05d1247b | 1680 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
1681 | { |
1682 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1683 | if (!b->buf) | |
1684 | PerlIOBuf_alloc_buf(b); | |
1685 | b->ptr = ptr; | |
1686 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1687 | { |
9e353e3b NIS |
1688 | dTHX; |
1689 | assert(PerlIO_get_cnt(f) == cnt); | |
1690 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1691 | } |
9e353e3b | 1692 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1693 | } |
1694 | ||
9e353e3b NIS |
1695 | PerlIO_funcs PerlIO_perlio = { |
1696 | "perlio", | |
1697 | sizeof(PerlIOBuf), | |
1698 | 0, | |
1699 | PerlIOBase_fileno, | |
1700 | PerlIOBuf_fdopen, | |
1701 | PerlIOBuf_open, | |
1702 | PerlIOBase_reopen, | |
1703 | PerlIOBuf_read, | |
1704 | PerlIOBuf_unread, | |
1705 | PerlIOBuf_write, | |
1706 | PerlIOBuf_seek, | |
1707 | PerlIOBuf_tell, | |
1708 | PerlIOBuf_close, | |
1709 | PerlIOBuf_flush, | |
1710 | PerlIOBase_eof, | |
1711 | PerlIOBase_error, | |
1712 | PerlIOBase_clearerr, | |
1713 | PerlIOBuf_setlinebuf, | |
1714 | PerlIOBuf_get_base, | |
1715 | PerlIOBuf_bufsiz, | |
1716 | PerlIOBuf_get_ptr, | |
1717 | PerlIOBuf_get_cnt, | |
1718 | PerlIOBuf_set_ptrcnt, | |
1719 | }; | |
1720 | ||
1721 | void | |
1722 | PerlIO_init(void) | |
760ac839 | 1723 | { |
9e353e3b | 1724 | if (!_perlio) |
6f9d8c32 | 1725 | { |
9e353e3b | 1726 | atexit(&PerlIO_cleanup); |
6f9d8c32 | 1727 | } |
760ac839 LW |
1728 | } |
1729 | ||
9e353e3b NIS |
1730 | #undef PerlIO_stdin |
1731 | PerlIO * | |
1732 | PerlIO_stdin(void) | |
1733 | { | |
1734 | if (!_perlio) | |
f3862f8b | 1735 | PerlIO_stdstreams(); |
05d1247b | 1736 | return &_perlio[1]; |
9e353e3b NIS |
1737 | } |
1738 | ||
1739 | #undef PerlIO_stdout | |
1740 | PerlIO * | |
1741 | PerlIO_stdout(void) | |
1742 | { | |
1743 | if (!_perlio) | |
f3862f8b | 1744 | PerlIO_stdstreams(); |
05d1247b | 1745 | return &_perlio[2]; |
9e353e3b NIS |
1746 | } |
1747 | ||
1748 | #undef PerlIO_stderr | |
1749 | PerlIO * | |
1750 | PerlIO_stderr(void) | |
1751 | { | |
1752 | if (!_perlio) | |
f3862f8b | 1753 | PerlIO_stdstreams(); |
05d1247b | 1754 | return &_perlio[3]; |
9e353e3b NIS |
1755 | } |
1756 | ||
1757 | /*--------------------------------------------------------------------------------------*/ | |
1758 | ||
1759 | #undef PerlIO_getname | |
1760 | char * | |
1761 | PerlIO_getname(PerlIO *f, char *buf) | |
1762 | { | |
1763 | dTHX; | |
1764 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
1765 | return NULL; | |
1766 | } | |
1767 | ||
1768 | ||
1769 | /*--------------------------------------------------------------------------------------*/ | |
1770 | /* Functions which can be called on any kind of PerlIO implemented | |
1771 | in terms of above | |
1772 | */ | |
1773 | ||
1774 | #undef PerlIO_getc | |
6f9d8c32 | 1775 | int |
9e353e3b | 1776 | PerlIO_getc(PerlIO *f) |
760ac839 | 1777 | { |
313ca112 NIS |
1778 | STDCHAR buf[1]; |
1779 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 1780 | if (count == 1) |
313ca112 NIS |
1781 | { |
1782 | return (unsigned char) buf[0]; | |
1783 | } | |
1784 | return EOF; | |
1785 | } | |
1786 | ||
1787 | #undef PerlIO_ungetc | |
1788 | int | |
1789 | PerlIO_ungetc(PerlIO *f, int ch) | |
1790 | { | |
1791 | if (ch != EOF) | |
1792 | { | |
1793 | STDCHAR buf = ch; | |
1794 | if (PerlIO_unread(f,&buf,1) == 1) | |
1795 | return ch; | |
1796 | } | |
1797 | return EOF; | |
760ac839 LW |
1798 | } |
1799 | ||
9e353e3b NIS |
1800 | #undef PerlIO_putc |
1801 | int | |
1802 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 1803 | { |
9e353e3b NIS |
1804 | STDCHAR buf = ch; |
1805 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
1806 | } |
1807 | ||
9e353e3b | 1808 | #undef PerlIO_puts |
760ac839 | 1809 | int |
9e353e3b | 1810 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 1811 | { |
9e353e3b NIS |
1812 | STRLEN len = strlen(s); |
1813 | return PerlIO_write(f,s,len); | |
760ac839 LW |
1814 | } |
1815 | ||
1816 | #undef PerlIO_rewind | |
1817 | void | |
c78749f2 | 1818 | PerlIO_rewind(PerlIO *f) |
760ac839 | 1819 | { |
6f9d8c32 | 1820 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 1821 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
1822 | } |
1823 | ||
1824 | #undef PerlIO_vprintf | |
1825 | int | |
1826 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
1827 | { | |
1828 | dTHX; | |
bb9950b7 | 1829 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
1830 | char *s; |
1831 | STRLEN len; | |
1832 | sv_vcatpvf(sv, fmt, &ap); | |
1833 | s = SvPV(sv,len); | |
bb9950b7 | 1834 | return PerlIO_write(f,s,len); |
760ac839 LW |
1835 | } |
1836 | ||
1837 | #undef PerlIO_printf | |
6f9d8c32 | 1838 | int |
760ac839 | 1839 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
1840 | { |
1841 | va_list ap; | |
1842 | int result; | |
760ac839 | 1843 | va_start(ap,fmt); |
6f9d8c32 | 1844 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
1845 | va_end(ap); |
1846 | return result; | |
1847 | } | |
1848 | ||
1849 | #undef PerlIO_stdoutf | |
6f9d8c32 | 1850 | int |
760ac839 | 1851 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
1852 | { |
1853 | va_list ap; | |
1854 | int result; | |
760ac839 | 1855 | va_start(ap,fmt); |
760ac839 LW |
1856 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
1857 | va_end(ap); | |
1858 | return result; | |
1859 | } | |
1860 | ||
1861 | #undef PerlIO_tmpfile | |
1862 | PerlIO * | |
c78749f2 | 1863 | PerlIO_tmpfile(void) |
760ac839 | 1864 | { |
6f9d8c32 | 1865 | dTHX; |
b1ef6e3b | 1866 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
1867 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
1868 | int fd = mkstemp(SvPVX(sv)); | |
1869 | PerlIO *f = NULL; | |
1870 | if (fd >= 0) | |
1871 | { | |
b1ef6e3b | 1872 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
1873 | if (f) |
1874 | { | |
9e353e3b | 1875 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 NIS |
1876 | } |
1877 | unlink(SvPVX(sv)); | |
1878 | SvREFCNT_dec(sv); | |
1879 | } | |
1880 | return f; | |
760ac839 LW |
1881 | } |
1882 | ||
6f9d8c32 NIS |
1883 | #undef HAS_FSETPOS |
1884 | #undef HAS_FGETPOS | |
1885 | ||
760ac839 LW |
1886 | #endif /* USE_SFIO */ |
1887 | #endif /* PERLIO_IS_STDIO */ | |
1888 | ||
9e353e3b NIS |
1889 | /*======================================================================================*/ |
1890 | /* Now some functions in terms of above which may be needed even if | |
1891 | we are not in true PerlIO mode | |
1892 | */ | |
1893 | ||
760ac839 LW |
1894 | #ifndef HAS_FSETPOS |
1895 | #undef PerlIO_setpos | |
1896 | int | |
c78749f2 | 1897 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 1898 | { |
6f9d8c32 | 1899 | return PerlIO_seek(f,*pos,0); |
760ac839 | 1900 | } |
c411622e | 1901 | #else |
1902 | #ifndef PERLIO_IS_STDIO | |
1903 | #undef PerlIO_setpos | |
1904 | int | |
c78749f2 | 1905 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 1906 | { |
2d4389e4 | 1907 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1908 | return fsetpos64(f, pos); |
1909 | #else | |
c411622e | 1910 | return fsetpos(f, pos); |
d9b3e12d | 1911 | #endif |
c411622e | 1912 | } |
1913 | #endif | |
760ac839 LW |
1914 | #endif |
1915 | ||
1916 | #ifndef HAS_FGETPOS | |
1917 | #undef PerlIO_getpos | |
1918 | int | |
c78749f2 | 1919 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
1920 | { |
1921 | *pos = PerlIO_tell(f); | |
1922 | return 0; | |
1923 | } | |
c411622e | 1924 | #else |
1925 | #ifndef PERLIO_IS_STDIO | |
1926 | #undef PerlIO_getpos | |
1927 | int | |
c78749f2 | 1928 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 1929 | { |
2d4389e4 | 1930 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1931 | return fgetpos64(f, pos); |
1932 | #else | |
c411622e | 1933 | return fgetpos(f, pos); |
d9b3e12d | 1934 | #endif |
c411622e | 1935 | } |
1936 | #endif | |
760ac839 LW |
1937 | #endif |
1938 | ||
1939 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
1940 | ||
1941 | int | |
c78749f2 | 1942 | vprintf(char *pat, char *args) |
662a7e3f CS |
1943 | { |
1944 | _doprnt(pat, args, stdout); | |
1945 | return 0; /* wrong, but perl doesn't use the return value */ | |
1946 | } | |
1947 | ||
1948 | int | |
c78749f2 | 1949 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
1950 | { |
1951 | _doprnt(pat, args, fd); | |
1952 | return 0; /* wrong, but perl doesn't use the return value */ | |
1953 | } | |
1954 | ||
1955 | #endif | |
1956 | ||
1957 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 1958 | int |
8ac85365 | 1959 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
1960 | { |
1961 | int val = vsprintf(s, fmt, ap); | |
1962 | if (n >= 0) | |
1963 | { | |
8c86a920 | 1964 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 1965 | { |
bf49b057 GS |
1966 | dTHX; |
1967 | PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n"); | |
1968 | my_exit(1); | |
760ac839 LW |
1969 | } |
1970 | } | |
1971 | return val; | |
1972 | } | |
1973 | #endif | |
1974 | ||
1975 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 1976 | int |
760ac839 | 1977 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
1978 | { |
1979 | va_list ap; | |
1980 | int result; | |
760ac839 | 1981 | va_start(ap,fmt); |
760ac839 LW |
1982 | result = PerlIO_vsprintf(s, n, fmt, ap); |
1983 | va_end(ap); | |
1984 | return result; | |
1985 | } | |
1986 | #endif | |
1987 | ||
c5be433b GS |
1988 | #endif /* !PERL_IMPLICIT_SYS */ |
1989 |