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1 | /* perlio.c |
2 | * |
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3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
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4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | #define VOIDUSED 1 |
12ae5dfc |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" |
13 | #else |
14 | # include "config.h" |
15 | #endif |
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16 | |
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17 | #define PERLIO_NOT_STDIO 0 |
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18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 |
19 | /* #define PerlIO FILE */ |
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20 | #endif |
21 | /* |
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22 | * This file provides those parts of PerlIO abstraction |
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23 | * which are not #defined in iperlsys.h. |
6f9d8c32 |
24 | * Which these are depends on various Configure #ifdef's |
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25 | */ |
26 | |
27 | #include "EXTERN.h" |
864dbfa3 |
28 | #define PERL_IN_PERLIO_C |
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29 | #include "perl.h" |
30 | |
32e30700 |
31 | #if !defined(PERL_IMPLICIT_SYS) |
32 | |
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33 | #ifdef PERLIO_IS_STDIO |
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34 | |
35 | void |
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36 | PerlIO_init(void) |
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37 | { |
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38 | /* Does nothing (yet) except force this file to be included |
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39 | in perl binary. That allows this file to force inclusion |
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40 | of other functions that may be required by loadable |
41 | extensions e.g. for FileHandle::tmpfile |
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42 | */ |
43 | } |
44 | |
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45 | #undef PerlIO_tmpfile |
46 | PerlIO * |
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47 | PerlIO_tmpfile(void) |
33dcbb9a |
48 | { |
49 | return tmpfile(); |
50 | } |
51 | |
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52 | #else /* PERLIO_IS_STDIO */ |
53 | |
54 | #ifdef USE_SFIO |
55 | |
56 | #undef HAS_FSETPOS |
57 | #undef HAS_FGETPOS |
58 | |
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59 | /* This section is just to make sure these functions |
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60 | get pulled in from libsfio.a |
61 | */ |
62 | |
63 | #undef PerlIO_tmpfile |
64 | PerlIO * |
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65 | PerlIO_tmpfile(void) |
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66 | { |
67 | return sftmp(0); |
68 | } |
69 | |
70 | void |
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71 | PerlIO_init(void) |
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72 | { |
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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 |
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 |
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81 | * lot of small writes to pipes. |
82 | */ |
83 | sfset(sfstdout,SF_SHARE,0); |
84 | } |
85 | |
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86 | #else /* USE_SFIO */ |
6f9d8c32 |
87 | /*======================================================================================*/ |
6f9d8c32 |
88 | /* Implement all the PerlIO interface ourselves. |
9e353e3b |
89 | */ |
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90 | |
b1ef6e3b |
91 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f |
92 | #ifdef I_UNISTD |
93 | #include <unistd.h> |
94 | #endif |
f3862f8b |
95 | #include "XSUB.h" |
02f66e2f |
96 | |
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97 | #undef printf |
98 | void PerlIO_debug(char *fmt,...) __attribute__((format(printf,1,2))); |
99 | |
6f9d8c32 |
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 |
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 |
124 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
125 | |
6f9d8c32 |
126 | s = SvPV(sv,len); |
127 | write(dbg,s,len); |
128 | va_end(ap); |
129 | SvREFCNT_dec(sv); |
130 | } |
131 | } |
132 | |
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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 | |
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165 | |
166 | struct _PerlIO |
167 | { |
9e353e3b |
168 | PerlIOl * next; /* Lower layer */ |
169 | PerlIO_funcs * tab; /* Functions for this layer */ |
170 | IV flags; /* Various flags for state */ |
6f9d8c32 |
171 | }; |
172 | |
9e353e3b |
173 | /*--------------------------------------------------------------------------------------*/ |
174 | |
175 | /* Flag values */ |
f3862f8b |
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 |
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 |
198 | PerlIO *_perlio = NULL; |
199 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 |
200 | |
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201 | PerlIO * |
6f9d8c32 |
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 |
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 |
215 | return f; |
216 | } |
6f9d8c32 |
217 | } |
6f9d8c32 |
218 | } |
05d1247b |
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 |
249 | } |
250 | |
9e353e3b |
251 | void |
252 | PerlIO_pop(PerlIO *f) |
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253 | { |
9e353e3b |
254 | PerlIOl *l = *f; |
255 | if (l) |
6f9d8c32 |
256 | { |
9e353e3b |
257 | *f = l->next; |
258 | Safefree(l); |
6f9d8c32 |
259 | } |
6f9d8c32 |
260 | } |
261 | |
262 | #undef PerlIO_close |
263 | int |
264 | PerlIO_close(PerlIO *f) |
265 | { |
9e353e3b |
266 | int code = (*PerlIOBase(f)->tab->Close)(f); |
267 | while (*f) |
6f9d8c32 |
268 | { |
9e353e3b |
269 | PerlIO_pop(f); |
6f9d8c32 |
270 | } |
271 | return code; |
272 | } |
273 | |
9e353e3b |
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 |
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 |
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 |
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 |
419 | |
420 | #undef PerlIO_fdopen |
421 | PerlIO * |
422 | PerlIO_fdopen(int fd, const char *mode) |
423 | { |
424 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
425 | if (!_perlio) |
426 | PerlIO_stdstreams(); |
9e353e3b |
427 | return (*tab->Fdopen)(fd,mode); |
428 | } |
429 | |
6f9d8c32 |
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 |
435 | if (!_perlio) |
436 | PerlIO_stdstreams(); |
9e353e3b |
437 | return (*tab->Open)(path,mode); |
6f9d8c32 |
438 | } |
439 | |
9e353e3b |
440 | IV |
441 | PerlIOBase_init(PerlIO *f, const char *mode) |
6f9d8c32 |
442 | { |
9e353e3b |
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 |
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 |
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 |
476 | } |
477 | } |
9e353e3b |
478 | } |
479 | else |
480 | { |
481 | if (l->next) |
6f9d8c32 |
482 | { |
9e353e3b |
483 | l->flags |= l->next->flags & |
484 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
485 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); |
6f9d8c32 |
486 | } |
487 | } |
9e353e3b |
488 | return 0; |
6f9d8c32 |
489 | } |
490 | |
9e353e3b |
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 |
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 |
505 | else |
506 | return PerlIO_open(path,mode); |
760ac839 |
507 | } |
508 | |
9e353e3b |
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 |
514 | } |
515 | |
313ca112 |
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 |
521 | } |
522 | |
9e353e3b |
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 |
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 |
535 | } |
536 | |
9e353e3b |
537 | #undef PerlIO_tell |
538 | Off_t |
539 | PerlIO_tell(PerlIO *f) |
760ac839 |
540 | { |
9e353e3b |
541 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 |
542 | } |
543 | |
9e353e3b |
544 | #undef PerlIO_flush |
6f9d8c32 |
545 | int |
9e353e3b |
546 | PerlIO_flush(PerlIO *f) |
760ac839 |
547 | { |
6f9d8c32 |
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 |
558 | int i; |
559 | table = (PerlIO **)(f++); |
560 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
9e353e3b |
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 |
569 | } |
570 | |
f3862f8b |
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 |
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 |
615 | } |
616 | |
9e353e3b |
617 | #undef PerlIO_fast_gets |
618 | int |
619 | PerlIO_fast_gets(PerlIO *f) |
760ac839 |
620 | { |
9e353e3b |
621 | if (f && *f) |
6f9d8c32 |
622 | { |
c7fc522f |
623 | PerlIOl *l = PerlIOBase(f); |
624 | return (l->tab->Set_ptrcnt != NULL); |
6f9d8c32 |
625 | } |
9e353e3b |
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 |
647 | PerlIOl *l = PerlIOBase(f); |
648 | return (l->tab->Set_ptrcnt != NULL); |
9e353e3b |
649 | } |
c7fc522f |
650 | return 0; |
760ac839 |
651 | } |
652 | |
653 | #undef PerlIO_get_base |
888911fc |
654 | STDCHAR * |
a20bf0c3 |
655 | PerlIO_get_base(PerlIO *f) |
760ac839 |
656 | { |
9e353e3b |
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 |
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 |
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 |
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 |
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 |
718 | } |
719 | |
9e353e3b |
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 |
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 |
836 | errno = EINVAL; |
837 | oflags = -1; |
6f9d8c32 |
838 | } |
9e353e3b |
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 |
852 | if (*mode == 'I') |
853 | mode++; |
9e353e3b |
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 |
885 | } |
886 | |
760ac839 |
887 | int |
9e353e3b |
888 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 |
889 | { |
9e353e3b |
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 |
912 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
913 | return 0; |
9e353e3b |
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 |
1013 | int init = 0; |
1014 | if (*mode == 'I') |
1015 | { |
1016 | init = 1; |
1017 | mode++; |
1018 | } |
9e353e3b |
1019 | if (fd >= 0) |
1020 | { |
c7fc522f |
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 |
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 |
1072 | } |
1073 | |
6f9d8c32 |
1074 | int |
9e353e3b |
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 |
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 |
1103 | else |
1104 | got = fread(vbuf,1,count,s); |
1105 | return got; |
9e353e3b |
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 |
1134 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1135 | return fseek(stdio,offset,whence); |
9e353e3b |
1136 | } |
1137 | |
1138 | Off_t |
1139 | PerlIOStdio_tell(PerlIO *f) |
1140 | { |
c7fc522f |
1141 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1142 | return ftell(stdio); |
9e353e3b |
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, |
b267dd9e |
1283 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b |
1284 | PerlIOStdio_set_ptrcnt |
1285 | #else /* STDIO_PTR_LVALUE */ |
1286 | NULL |
1287 | #endif /* STDIO_PTR_LVALUE */ |
1288 | #else /* USE_STDIO_PTR */ |
1289 | NULL, |
1290 | NULL, |
1291 | NULL |
1292 | #endif /* USE_STDIO_PTR */ |
1293 | }; |
1294 | |
1295 | #undef PerlIO_exportFILE |
1296 | FILE * |
1297 | PerlIO_exportFILE(PerlIO *f, int fl) |
1298 | { |
1299 | PerlIO_flush(f); |
1300 | /* Should really push stdio discipline when we have them */ |
1301 | return fdopen(PerlIO_fileno(f),"r+"); |
1302 | } |
1303 | |
1304 | #undef PerlIO_findFILE |
1305 | FILE * |
1306 | PerlIO_findFILE(PerlIO *f) |
1307 | { |
1308 | return PerlIO_exportFILE(f,0); |
1309 | } |
1310 | |
1311 | #undef PerlIO_releaseFILE |
1312 | void |
1313 | PerlIO_releaseFILE(PerlIO *p, FILE *f) |
1314 | { |
1315 | } |
1316 | |
1317 | /*--------------------------------------------------------------------------------------*/ |
1318 | /* perlio buffer layer */ |
1319 | |
1320 | typedef struct |
760ac839 |
1321 | { |
9e353e3b |
1322 | struct _PerlIO base; |
1323 | Off_t posn; /* Offset of buf into the file */ |
1324 | STDCHAR * buf; /* Start of buffer */ |
1325 | STDCHAR * end; /* End of valid part of buffer */ |
1326 | STDCHAR * ptr; /* Current position in buffer */ |
1327 | Size_t bufsiz; /* Size of buffer */ |
1328 | IV oneword; /* Emergency buffer */ |
1329 | } PerlIOBuf; |
1330 | |
1331 | |
1332 | PerlIO * |
1333 | PerlIOBuf_fdopen(int fd, const char *mode) |
1334 | { |
1335 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f |
1336 | int init = 0; |
1337 | PerlIO *f; |
1338 | if (*mode == 'I') |
1339 | { |
1340 | init = 1; |
1341 | mode++; |
1342 | } |
1343 | f = (*tab->Fdopen)(fd,mode); |
6f9d8c32 |
1344 | if (f) |
1345 | { |
c7fc522f |
1346 | /* Initial stderr is unbuffered */ |
1347 | if (!init || fd != 2) |
1348 | { |
1349 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); |
1350 | b->posn = PerlIO_tell(PerlIONext(f)); |
1351 | } |
6f9d8c32 |
1352 | } |
9e353e3b |
1353 | return f; |
760ac839 |
1354 | } |
1355 | |
9e353e3b |
1356 | PerlIO * |
1357 | PerlIOBuf_open(const char *path, const char *mode) |
8c86a920 |
1358 | { |
9e353e3b |
1359 | PerlIO_funcs *tab = PerlIO_default_btm(); |
1360 | PerlIO *f = (*tab->Open)(path,mode); |
1361 | if (f) |
1362 | { |
1363 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); |
1364 | b->posn = 0; |
1365 | } |
1366 | return f; |
1367 | } |
1368 | |
1369 | int |
1370 | PerlIOBase_reopen(const char *path, const char *mode, PerlIO *f) |
1371 | { |
1372 | return (*PerlIOBase(f)->tab->Reopen)(path,mode,PerlIONext(f)); |
1373 | } |
1374 | |
1375 | void |
1376 | PerlIOBuf_alloc_buf(PerlIOBuf *b) |
1377 | { |
1378 | if (!b->bufsiz) |
1379 | b->bufsiz = 4096; |
05d1247b |
1380 | New('B',b->buf,b->bufsiz,STDCHAR); |
9e353e3b |
1381 | if (!b->buf) |
1382 | { |
1383 | b->buf = (STDCHAR *)&b->oneword; |
1384 | b->bufsiz = sizeof(b->oneword); |
1385 | } |
1386 | b->ptr = b->buf; |
1387 | b->end = b->ptr; |
8c86a920 |
1388 | } |
1389 | |
9e353e3b |
1390 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1391 | read or write state |
1392 | */ |
1393 | IV |
1394 | PerlIOBuf_flush(PerlIO *f) |
6f9d8c32 |
1395 | { |
9e353e3b |
1396 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1397 | int code = 0; |
1398 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1399 | { |
1400 | /* write() the buffer */ |
1401 | STDCHAR *p = b->buf; |
1402 | int count; |
1403 | while (p < b->ptr) |
1404 | { |
1405 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); |
1406 | if (count > 0) |
1407 | { |
1408 | p += count; |
1409 | } |
1410 | else if (count < 0) |
1411 | { |
1412 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1413 | code = -1; |
1414 | break; |
1415 | } |
1416 | } |
1417 | b->posn += (p - b->buf); |
1418 | } |
1419 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
6f9d8c32 |
1420 | { |
9e353e3b |
1421 | /* Note position change */ |
1422 | b->posn += (b->ptr - b->buf); |
1423 | if (b->ptr < b->end) |
1424 | { |
1425 | /* We did not consume all of it */ |
1426 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) |
1427 | { |
1428 | b->posn = PerlIO_tell(PerlIONext(f)); |
1429 | } |
1430 | } |
6f9d8c32 |
1431 | } |
9e353e3b |
1432 | b->ptr = b->end = b->buf; |
1433 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
1434 | if (PerlIO_flush(PerlIONext(f)) != 0) |
1435 | code = -1; |
1436 | return code; |
6f9d8c32 |
1437 | } |
1438 | |
6f9d8c32 |
1439 | SSize_t |
9e353e3b |
1440 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
1441 | { |
9e353e3b |
1442 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 |
1443 | STDCHAR *buf = (STDCHAR *) vbuf; |
1444 | if (f) |
1445 | { |
1446 | Size_t got = 0; |
9e353e3b |
1447 | if (!b->ptr) |
1448 | PerlIOBuf_alloc_buf(b); |
1449 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf |
1450 | return 0; |
6f9d8c32 |
1451 | while (count > 0) |
1452 | { |
9e353e3b |
1453 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 |
1454 | if ((SSize_t) count < avail) |
1455 | avail = count; |
1456 | if (avail > 0) |
1457 | { |
9e353e3b |
1458 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 |
1459 | got += avail; |
9e353e3b |
1460 | b->ptr += avail; |
6f9d8c32 |
1461 | count -= avail; |
1462 | buf += avail; |
1463 | } |
9e353e3b |
1464 | if (count && (b->ptr >= b->end)) |
6f9d8c32 |
1465 | { |
bb9950b7 |
1466 | PerlIO_flush(f); |
9e353e3b |
1467 | b->ptr = b->end = b->buf; |
1468 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); |
6f9d8c32 |
1469 | if (avail <= 0) |
1470 | { |
1471 | if (avail == 0) |
9e353e3b |
1472 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
6f9d8c32 |
1473 | else |
9e353e3b |
1474 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
6f9d8c32 |
1475 | break; |
1476 | } |
9e353e3b |
1477 | b->end = b->buf+avail; |
1478 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
6f9d8c32 |
1479 | } |
1480 | } |
1481 | return got; |
1482 | } |
1483 | return 0; |
1484 | } |
1485 | |
9e353e3b |
1486 | SSize_t |
1487 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1488 | { |
9e353e3b |
1489 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1490 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1491 | SSize_t unread = 0; |
1492 | SSize_t avail; |
1493 | if (!b->buf) |
1494 | PerlIOBuf_alloc_buf(b); |
1495 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1496 | PerlIO_flush(f); |
1497 | if (b->buf) |
1498 | { |
1499 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1500 | { |
1501 | avail = (b->ptr - b->buf); |
1502 | if (avail > (SSize_t) count) |
1503 | avail = count; |
1504 | b->ptr -= avail; |
1505 | } |
1506 | else |
1507 | { |
1508 | avail = b->bufsiz; |
1509 | if (avail > (SSize_t) count) |
1510 | avail = count; |
1511 | b->end = b->ptr + avail; |
1512 | } |
1513 | if (avail > 0) |
1514 | { |
1515 | buf -= avail; |
1516 | if (buf != b->ptr) |
1517 | { |
1518 | Copy(buf,b->ptr,avail,char); |
1519 | } |
1520 | count -= avail; |
1521 | unread += avail; |
1522 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
1523 | } |
1524 | } |
1525 | return unread; |
760ac839 |
1526 | } |
1527 | |
9e353e3b |
1528 | SSize_t |
1529 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1530 | { |
9e353e3b |
1531 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1532 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
1533 | Size_t written = 0; |
1534 | if (!b->buf) |
1535 | PerlIOBuf_alloc_buf(b); |
1536 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1537 | return 0; |
1538 | while (count > 0) |
1539 | { |
1540 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); |
1541 | if ((SSize_t) count < avail) |
1542 | avail = count; |
1543 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
1544 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
1545 | { |
1546 | while (avail > 0) |
1547 | { |
1548 | int ch = *buf++; |
1549 | *(b->ptr)++ = ch; |
1550 | count--; |
1551 | avail--; |
1552 | written++; |
1553 | if (ch == '\n') |
1554 | { |
1555 | PerlIO_flush(f); |
1556 | break; |
1557 | } |
1558 | } |
1559 | } |
1560 | else |
1561 | { |
1562 | if (avail) |
1563 | { |
1564 | Copy(buf,b->ptr,avail,char); |
1565 | count -= avail; |
1566 | buf += avail; |
1567 | written += avail; |
1568 | b->ptr += avail; |
1569 | } |
1570 | } |
1571 | if (b->ptr >= (b->buf + b->bufsiz)) |
1572 | PerlIO_flush(f); |
1573 | } |
1574 | return written; |
1575 | } |
1576 | |
1577 | IV |
1578 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) |
1579 | { |
1580 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1581 | int code; |
1582 | code = PerlIO_flush(f); |
1583 | if (code == 0) |
1584 | { |
1585 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
1586 | code = PerlIO_seek(PerlIONext(f),offset,whence); |
1587 | if (code == 0) |
1588 | { |
1589 | b->posn = PerlIO_tell(PerlIONext(f)); |
1590 | } |
1591 | } |
1592 | return code; |
1593 | } |
1594 | |
1595 | Off_t |
1596 | PerlIOBuf_tell(PerlIO *f) |
1597 | { |
1598 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1599 | Off_t posn = b->posn; |
1600 | if (b->buf) |
1601 | posn += (b->ptr - b->buf); |
1602 | return posn; |
1603 | } |
1604 | |
1605 | IV |
1606 | PerlIOBuf_close(PerlIO *f) |
1607 | { |
1608 | IV code = PerlIOBase_close(f); |
1609 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1610 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) |
6f9d8c32 |
1611 | { |
9e353e3b |
1612 | Safefree(b->buf); |
6f9d8c32 |
1613 | } |
9e353e3b |
1614 | b->buf = NULL; |
1615 | b->ptr = b->end = b->buf; |
1616 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
1617 | return code; |
760ac839 |
1618 | } |
1619 | |
760ac839 |
1620 | void |
9e353e3b |
1621 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 |
1622 | { |
6f9d8c32 |
1623 | if (f) |
1624 | { |
9e353e3b |
1625 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 |
1626 | } |
760ac839 |
1627 | } |
1628 | |
760ac839 |
1629 | void |
9e353e3b |
1630 | PerlIOBuf_set_cnt(PerlIO *f, int cnt) |
760ac839 |
1631 | { |
9e353e3b |
1632 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1633 | dTHX; |
1634 | if (!b->buf) |
1635 | PerlIOBuf_alloc_buf(b); |
1636 | b->ptr = b->end - cnt; |
1637 | assert(b->ptr >= b->buf); |
1638 | } |
1639 | |
1640 | STDCHAR * |
1641 | PerlIOBuf_get_ptr(PerlIO *f) |
1642 | { |
1643 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1644 | if (!b->buf) |
1645 | PerlIOBuf_alloc_buf(b); |
1646 | return b->ptr; |
1647 | } |
1648 | |
05d1247b |
1649 | SSize_t |
9e353e3b |
1650 | PerlIOBuf_get_cnt(PerlIO *f) |
1651 | { |
1652 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1653 | if (!b->buf) |
1654 | PerlIOBuf_alloc_buf(b); |
1655 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1656 | return (b->end - b->ptr); |
1657 | return 0; |
1658 | } |
1659 | |
1660 | STDCHAR * |
1661 | PerlIOBuf_get_base(PerlIO *f) |
1662 | { |
1663 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1664 | if (!b->buf) |
1665 | PerlIOBuf_alloc_buf(b); |
1666 | return b->buf; |
1667 | } |
1668 | |
1669 | Size_t |
1670 | PerlIOBuf_bufsiz(PerlIO *f) |
1671 | { |
1672 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1673 | if (!b->buf) |
1674 | PerlIOBuf_alloc_buf(b); |
1675 | return (b->end - b->buf); |
1676 | } |
1677 | |
1678 | void |
05d1247b |
1679 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b |
1680 | { |
1681 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1682 | if (!b->buf) |
1683 | PerlIOBuf_alloc_buf(b); |
1684 | b->ptr = ptr; |
1685 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) |
6f9d8c32 |
1686 | { |
9e353e3b |
1687 | dTHX; |
1688 | assert(PerlIO_get_cnt(f) == cnt); |
1689 | assert(b->ptr >= b->buf); |
6f9d8c32 |
1690 | } |
9e353e3b |
1691 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 |
1692 | } |
1693 | |
9e353e3b |
1694 | PerlIO_funcs PerlIO_perlio = { |
1695 | "perlio", |
1696 | sizeof(PerlIOBuf), |
1697 | 0, |
1698 | PerlIOBase_fileno, |
1699 | PerlIOBuf_fdopen, |
1700 | PerlIOBuf_open, |
1701 | PerlIOBase_reopen, |
1702 | PerlIOBuf_read, |
1703 | PerlIOBuf_unread, |
1704 | PerlIOBuf_write, |
1705 | PerlIOBuf_seek, |
1706 | PerlIOBuf_tell, |
1707 | PerlIOBuf_close, |
1708 | PerlIOBuf_flush, |
1709 | PerlIOBase_eof, |
1710 | PerlIOBase_error, |
1711 | PerlIOBase_clearerr, |
1712 | PerlIOBuf_setlinebuf, |
1713 | PerlIOBuf_get_base, |
1714 | PerlIOBuf_bufsiz, |
1715 | PerlIOBuf_get_ptr, |
1716 | PerlIOBuf_get_cnt, |
1717 | PerlIOBuf_set_ptrcnt, |
1718 | }; |
1719 | |
1720 | void |
1721 | PerlIO_init(void) |
760ac839 |
1722 | { |
9e353e3b |
1723 | if (!_perlio) |
6f9d8c32 |
1724 | { |
9e353e3b |
1725 | atexit(&PerlIO_cleanup); |
6f9d8c32 |
1726 | } |
760ac839 |
1727 | } |
1728 | |
9e353e3b |
1729 | #undef PerlIO_stdin |
1730 | PerlIO * |
1731 | PerlIO_stdin(void) |
1732 | { |
1733 | if (!_perlio) |
f3862f8b |
1734 | PerlIO_stdstreams(); |
05d1247b |
1735 | return &_perlio[1]; |
9e353e3b |
1736 | } |
1737 | |
1738 | #undef PerlIO_stdout |
1739 | PerlIO * |
1740 | PerlIO_stdout(void) |
1741 | { |
1742 | if (!_perlio) |
f3862f8b |
1743 | PerlIO_stdstreams(); |
05d1247b |
1744 | return &_perlio[2]; |
9e353e3b |
1745 | } |
1746 | |
1747 | #undef PerlIO_stderr |
1748 | PerlIO * |
1749 | PerlIO_stderr(void) |
1750 | { |
1751 | if (!_perlio) |
f3862f8b |
1752 | PerlIO_stdstreams(); |
05d1247b |
1753 | return &_perlio[3]; |
9e353e3b |
1754 | } |
1755 | |
1756 | /*--------------------------------------------------------------------------------------*/ |
1757 | |
1758 | #undef PerlIO_getname |
1759 | char * |
1760 | PerlIO_getname(PerlIO *f, char *buf) |
1761 | { |
1762 | dTHX; |
1763 | Perl_croak(aTHX_ "Don't know how to get file name"); |
1764 | return NULL; |
1765 | } |
1766 | |
1767 | |
1768 | /*--------------------------------------------------------------------------------------*/ |
1769 | /* Functions which can be called on any kind of PerlIO implemented |
1770 | in terms of above |
1771 | */ |
1772 | |
1773 | #undef PerlIO_getc |
6f9d8c32 |
1774 | int |
9e353e3b |
1775 | PerlIO_getc(PerlIO *f) |
760ac839 |
1776 | { |
313ca112 |
1777 | STDCHAR buf[1]; |
1778 | SSize_t count = PerlIO_read(f,buf,1); |
9e353e3b |
1779 | if (count == 1) |
313ca112 |
1780 | { |
1781 | return (unsigned char) buf[0]; |
1782 | } |
1783 | return EOF; |
1784 | } |
1785 | |
1786 | #undef PerlIO_ungetc |
1787 | int |
1788 | PerlIO_ungetc(PerlIO *f, int ch) |
1789 | { |
1790 | if (ch != EOF) |
1791 | { |
1792 | STDCHAR buf = ch; |
1793 | if (PerlIO_unread(f,&buf,1) == 1) |
1794 | return ch; |
1795 | } |
1796 | return EOF; |
760ac839 |
1797 | } |
1798 | |
9e353e3b |
1799 | #undef PerlIO_putc |
1800 | int |
1801 | PerlIO_putc(PerlIO *f, int ch) |
760ac839 |
1802 | { |
9e353e3b |
1803 | STDCHAR buf = ch; |
1804 | return PerlIO_write(f,&buf,1); |
760ac839 |
1805 | } |
1806 | |
9e353e3b |
1807 | #undef PerlIO_puts |
760ac839 |
1808 | int |
9e353e3b |
1809 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 |
1810 | { |
9e353e3b |
1811 | STRLEN len = strlen(s); |
1812 | return PerlIO_write(f,s,len); |
760ac839 |
1813 | } |
1814 | |
1815 | #undef PerlIO_rewind |
1816 | void |
c78749f2 |
1817 | PerlIO_rewind(PerlIO *f) |
760ac839 |
1818 | { |
6f9d8c32 |
1819 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b |
1820 | PerlIO_clearerr(f); |
6f9d8c32 |
1821 | } |
1822 | |
1823 | #undef PerlIO_vprintf |
1824 | int |
1825 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) |
1826 | { |
1827 | dTHX; |
bb9950b7 |
1828 | SV *sv = newSVpvn("",0); |
6f9d8c32 |
1829 | char *s; |
1830 | STRLEN len; |
1831 | sv_vcatpvf(sv, fmt, &ap); |
1832 | s = SvPV(sv,len); |
bb9950b7 |
1833 | return PerlIO_write(f,s,len); |
760ac839 |
1834 | } |
1835 | |
1836 | #undef PerlIO_printf |
6f9d8c32 |
1837 | int |
760ac839 |
1838 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 |
1839 | { |
1840 | va_list ap; |
1841 | int result; |
760ac839 |
1842 | va_start(ap,fmt); |
6f9d8c32 |
1843 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 |
1844 | va_end(ap); |
1845 | return result; |
1846 | } |
1847 | |
1848 | #undef PerlIO_stdoutf |
6f9d8c32 |
1849 | int |
760ac839 |
1850 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 |
1851 | { |
1852 | va_list ap; |
1853 | int result; |
760ac839 |
1854 | va_start(ap,fmt); |
760ac839 |
1855 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
1856 | va_end(ap); |
1857 | return result; |
1858 | } |
1859 | |
1860 | #undef PerlIO_tmpfile |
1861 | PerlIO * |
c78749f2 |
1862 | PerlIO_tmpfile(void) |
760ac839 |
1863 | { |
6f9d8c32 |
1864 | dTHX; |
b1ef6e3b |
1865 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 |
1866 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
1867 | int fd = mkstemp(SvPVX(sv)); |
1868 | PerlIO *f = NULL; |
1869 | if (fd >= 0) |
1870 | { |
b1ef6e3b |
1871 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 |
1872 | if (f) |
1873 | { |
9e353e3b |
1874 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 |
1875 | } |
1876 | unlink(SvPVX(sv)); |
1877 | SvREFCNT_dec(sv); |
1878 | } |
1879 | return f; |
760ac839 |
1880 | } |
1881 | |
6f9d8c32 |
1882 | #undef HAS_FSETPOS |
1883 | #undef HAS_FGETPOS |
1884 | |
760ac839 |
1885 | #endif /* USE_SFIO */ |
1886 | #endif /* PERLIO_IS_STDIO */ |
1887 | |
9e353e3b |
1888 | /*======================================================================================*/ |
1889 | /* Now some functions in terms of above which may be needed even if |
1890 | we are not in true PerlIO mode |
1891 | */ |
1892 | |
760ac839 |
1893 | #ifndef HAS_FSETPOS |
1894 | #undef PerlIO_setpos |
1895 | int |
c78749f2 |
1896 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 |
1897 | { |
6f9d8c32 |
1898 | return PerlIO_seek(f,*pos,0); |
760ac839 |
1899 | } |
c411622e |
1900 | #else |
1901 | #ifndef PERLIO_IS_STDIO |
1902 | #undef PerlIO_setpos |
1903 | int |
c78749f2 |
1904 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e |
1905 | { |
2d4389e4 |
1906 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
1907 | return fsetpos64(f, pos); |
1908 | #else |
c411622e |
1909 | return fsetpos(f, pos); |
d9b3e12d |
1910 | #endif |
c411622e |
1911 | } |
1912 | #endif |
760ac839 |
1913 | #endif |
1914 | |
1915 | #ifndef HAS_FGETPOS |
1916 | #undef PerlIO_getpos |
1917 | int |
c78749f2 |
1918 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 |
1919 | { |
1920 | *pos = PerlIO_tell(f); |
1921 | return 0; |
1922 | } |
c411622e |
1923 | #else |
1924 | #ifndef PERLIO_IS_STDIO |
1925 | #undef PerlIO_getpos |
1926 | int |
c78749f2 |
1927 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e |
1928 | { |
2d4389e4 |
1929 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
1930 | return fgetpos64(f, pos); |
1931 | #else |
c411622e |
1932 | return fgetpos(f, pos); |
d9b3e12d |
1933 | #endif |
c411622e |
1934 | } |
1935 | #endif |
760ac839 |
1936 | #endif |
1937 | |
1938 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) |
1939 | |
1940 | int |
c78749f2 |
1941 | vprintf(char *pat, char *args) |
662a7e3f |
1942 | { |
1943 | _doprnt(pat, args, stdout); |
1944 | return 0; /* wrong, but perl doesn't use the return value */ |
1945 | } |
1946 | |
1947 | int |
c78749f2 |
1948 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 |
1949 | { |
1950 | _doprnt(pat, args, fd); |
1951 | return 0; /* wrong, but perl doesn't use the return value */ |
1952 | } |
1953 | |
1954 | #endif |
1955 | |
1956 | #ifndef PerlIO_vsprintf |
6f9d8c32 |
1957 | int |
8ac85365 |
1958 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 |
1959 | { |
1960 | int val = vsprintf(s, fmt, ap); |
1961 | if (n >= 0) |
1962 | { |
8c86a920 |
1963 | if (strlen(s) >= (STRLEN)n) |
760ac839 |
1964 | { |
bf49b057 |
1965 | dTHX; |
1966 | PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n"); |
1967 | my_exit(1); |
760ac839 |
1968 | } |
1969 | } |
1970 | return val; |
1971 | } |
1972 | #endif |
1973 | |
1974 | #ifndef PerlIO_sprintf |
6f9d8c32 |
1975 | int |
760ac839 |
1976 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 |
1977 | { |
1978 | va_list ap; |
1979 | int result; |
760ac839 |
1980 | va_start(ap,fmt); |
760ac839 |
1981 | result = PerlIO_vsprintf(s, n, fmt, ap); |
1982 | va_end(ap); |
1983 | return result; |
1984 | } |
1985 | #endif |
1986 | |
c5be433b |
1987 | #endif /* !PERL_IMPLICIT_SYS */ |
1988 | |