Commit | Line | Data |
---|---|---|
760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | #define VOIDUSED 1 | |
12ae5dfc JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
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 | |
95 | ||
6f9d8c32 NIS |
96 | #undef printf |
97 | void PerlIO_debug(char *fmt,...) __attribute__((format(printf,1,2))); | |
98 | ||
6f9d8c32 NIS |
99 | void |
100 | PerlIO_debug(char *fmt,...) | |
101 | { | |
102 | static int dbg = 0; | |
103 | if (!dbg) | |
104 | { | |
105 | char *s = getenv("PERLIO_DEBUG"); | |
106 | if (s && *s) | |
107 | dbg = open(s,O_WRONLY|O_CREAT|O_APPEND,0666); | |
108 | else | |
109 | dbg = -1; | |
110 | } | |
111 | if (dbg > 0) | |
112 | { | |
113 | dTHX; | |
114 | va_list ap; | |
115 | SV *sv = newSVpvn("",0); | |
116 | char *s; | |
117 | STRLEN len; | |
118 | va_start(ap,fmt); | |
c7fc522f NIS |
119 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", |
120 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
121 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); | |
122 | ||
6f9d8c32 NIS |
123 | s = SvPV(sv,len); |
124 | write(dbg,s,len); | |
125 | va_end(ap); | |
126 | SvREFCNT_dec(sv); | |
127 | } | |
128 | } | |
129 | ||
9e353e3b NIS |
130 | /*--------------------------------------------------------------------------------------*/ |
131 | ||
132 | typedef struct | |
133 | { | |
134 | char * name; | |
135 | Size_t size; | |
136 | IV kind; | |
137 | IV (*Fileno)(PerlIO *f); | |
138 | PerlIO * (*Fdopen)(int fd, const char *mode); | |
139 | PerlIO * (*Open)(const char *path, const char *mode); | |
140 | int (*Reopen)(const char *path, const char *mode, PerlIO *f); | |
141 | /* Unix-like functions - cf sfio line disciplines */ | |
142 | SSize_t (*Read)(PerlIO *f, void *vbuf, Size_t count); | |
143 | SSize_t (*Unread)(PerlIO *f, const void *vbuf, Size_t count); | |
144 | SSize_t (*Write)(PerlIO *f, const void *vbuf, Size_t count); | |
145 | IV (*Seek)(PerlIO *f, Off_t offset, int whence); | |
146 | Off_t (*Tell)(PerlIO *f); | |
147 | IV (*Close)(PerlIO *f); | |
148 | /* Stdio-like buffered IO functions */ | |
149 | IV (*Flush)(PerlIO *f); | |
150 | IV (*Eof)(PerlIO *f); | |
151 | IV (*Error)(PerlIO *f); | |
152 | void (*Clearerr)(PerlIO *f); | |
153 | void (*Setlinebuf)(PerlIO *f); | |
154 | /* Perl's snooping functions */ | |
155 | STDCHAR * (*Get_base)(PerlIO *f); | |
156 | Size_t (*Get_bufsiz)(PerlIO *f); | |
157 | STDCHAR * (*Get_ptr)(PerlIO *f); | |
158 | SSize_t (*Get_cnt)(PerlIO *f); | |
159 | void (*Set_ptrcnt)(PerlIO *f,STDCHAR *ptr,SSize_t cnt); | |
160 | } PerlIO_funcs; | |
161 | ||
6f9d8c32 NIS |
162 | |
163 | struct _PerlIO | |
164 | { | |
9e353e3b NIS |
165 | PerlIOl * next; /* Lower layer */ |
166 | PerlIO_funcs * tab; /* Functions for this layer */ | |
167 | IV flags; /* Various flags for state */ | |
6f9d8c32 NIS |
168 | }; |
169 | ||
9e353e3b NIS |
170 | /*--------------------------------------------------------------------------------------*/ |
171 | ||
172 | /* Flag values */ | |
173 | #define PERLIO_F_EOF 0x0010000 | |
174 | #define PERLIO_F_CANWRITE 0x0020000 | |
175 | #define PERLIO_F_CANREAD 0x0040000 | |
176 | #define PERLIO_F_ERROR 0x0080000 | |
177 | #define PERLIO_F_TRUNCATE 0x0100000 | |
178 | #define PERLIO_F_APPEND 0x0200000 | |
179 | #define PERLIO_F_BINARY 0x0400000 | |
180 | #define PERLIO_F_TEMP 0x0800000 | |
181 | #define PERLIO_F_LINEBUF 0x0100000 | |
182 | #define PERLIO_F_WRBUF 0x2000000 | |
183 | #define PERLIO_F_RDBUF 0x4000000 | |
184 | #define PERLIO_F_OPEN 0x8000000 | |
185 | ||
186 | #define PerlIOBase(f) (*(f)) | |
187 | #define PerlIOSelf(f,type) ((type *)PerlIOBase(f)) | |
188 | #define PerlIONext(f) (&(PerlIOBase(f)->next)) | |
189 | ||
190 | /*--------------------------------------------------------------------------------------*/ | |
191 | /* Inner level routines */ | |
192 | ||
b1ef6e3b | 193 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
6f9d8c32 | 194 | PerlIO **_perlio = NULL; |
b1ef6e3b | 195 | int _perlio_size = 0; |
6f9d8c32 | 196 | |
760ac839 | 197 | PerlIO * |
6f9d8c32 NIS |
198 | PerlIO_allocate(void) |
199 | { | |
b1ef6e3b | 200 | /* Find a free slot in the table, growing table as necessary */ |
6f9d8c32 NIS |
201 | PerlIO *f; |
202 | int i = 0; | |
203 | while (1) | |
204 | { | |
205 | PerlIO **table = _perlio; | |
206 | while (i < _perlio_size) | |
207 | { | |
208 | f = table[i]; | |
6f9d8c32 NIS |
209 | if (!f) |
210 | { | |
211 | Newz('F',f,1,PerlIO); | |
212 | if (!f) | |
213 | return NULL; | |
214 | table[i] = f; | |
215 | } | |
9e353e3b | 216 | if (!*f) |
6f9d8c32 | 217 | { |
9e353e3b | 218 | PerlIO_debug(__FUNCTION__ " f=%p\n",f); |
6f9d8c32 NIS |
219 | return f; |
220 | } | |
221 | i++; | |
222 | } | |
223 | Newz('I',table,_perlio_size+16,PerlIO *); | |
224 | if (!table) | |
225 | return NULL; | |
226 | Copy(_perlio,table,_perlio_size,PerlIO *); | |
227 | if (_perlio) | |
228 | Safefree(_perlio); | |
229 | _perlio = table; | |
230 | _perlio_size += 16; | |
231 | } | |
232 | } | |
233 | ||
9e353e3b NIS |
234 | void |
235 | PerlIO_pop(PerlIO *f) | |
760ac839 | 236 | { |
9e353e3b NIS |
237 | PerlIOl *l = *f; |
238 | if (l) | |
6f9d8c32 | 239 | { |
9e353e3b NIS |
240 | *f = l->next; |
241 | Safefree(l); | |
6f9d8c32 | 242 | } |
6f9d8c32 NIS |
243 | } |
244 | ||
245 | #undef PerlIO_close | |
246 | int | |
247 | PerlIO_close(PerlIO *f) | |
248 | { | |
9e353e3b NIS |
249 | int code = (*PerlIOBase(f)->tab->Close)(f); |
250 | while (*f) | |
6f9d8c32 | 251 | { |
9e353e3b | 252 | PerlIO_pop(f); |
6f9d8c32 NIS |
253 | } |
254 | return code; | |
255 | } | |
256 | ||
257 | void | |
258 | PerlIO_cleanup(void) | |
259 | { | |
b1ef6e3b | 260 | /* Close all the files */ |
6f9d8c32 | 261 | int i; |
6f9d8c32 NIS |
262 | for (i=_perlio_size-1; i >= 0; i--) |
263 | { | |
264 | PerlIO *f = _perlio[i]; | |
265 | if (f) | |
266 | { | |
9e353e3b NIS |
267 | if (*f) |
268 | PerlIO_close(f); | |
6f9d8c32 NIS |
269 | Safefree(f); |
270 | } | |
271 | } | |
272 | if (_perlio) | |
273 | Safefree(_perlio); | |
274 | _perlio = NULL; | |
275 | _perlio_size = 0; | |
276 | } | |
277 | ||
9e353e3b NIS |
278 | |
279 | ||
280 | /*--------------------------------------------------------------------------------------*/ | |
281 | /* Given the abstraction above the public API functions */ | |
282 | ||
283 | #undef PerlIO_fileno | |
284 | int | |
285 | PerlIO_fileno(PerlIO *f) | |
286 | { | |
287 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
288 | } | |
289 | ||
290 | extern PerlIO_funcs PerlIO_unix; | |
291 | extern PerlIO_funcs PerlIO_stdio; | |
292 | extern PerlIO_funcs PerlIO_perlio; | |
293 | ||
294 | #define PerlIO_default_top() &PerlIO_stdio | |
295 | #define PerlIO_default_btm() &PerlIO_unix | |
296 | ||
297 | #undef PerlIO_fdopen | |
298 | PerlIO * | |
299 | PerlIO_fdopen(int fd, const char *mode) | |
300 | { | |
301 | PerlIO_funcs *tab = PerlIO_default_top(); | |
302 | return (*tab->Fdopen)(fd,mode); | |
303 | } | |
304 | ||
6f9d8c32 NIS |
305 | #undef PerlIO_open |
306 | PerlIO * | |
307 | PerlIO_open(const char *path, const char *mode) | |
308 | { | |
9e353e3b NIS |
309 | PerlIO_funcs *tab = PerlIO_default_top(); |
310 | return (*tab->Open)(path,mode); | |
6f9d8c32 NIS |
311 | } |
312 | ||
9e353e3b NIS |
313 | IV |
314 | PerlIOBase_init(PerlIO *f, const char *mode) | |
6f9d8c32 | 315 | { |
9e353e3b NIS |
316 | PerlIOl *l = PerlIOBase(f); |
317 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
318 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
319 | if (mode) | |
6f9d8c32 | 320 | { |
9e353e3b NIS |
321 | switch (*mode++) |
322 | { | |
323 | case 'r': | |
324 | l->flags = PERLIO_F_CANREAD; | |
325 | break; | |
326 | case 'a': | |
327 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; | |
328 | break; | |
329 | case 'w': | |
330 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; | |
331 | break; | |
332 | default: | |
333 | errno = EINVAL; | |
334 | return -1; | |
335 | } | |
336 | while (*mode) | |
6f9d8c32 | 337 | { |
9e353e3b | 338 | switch (*mode++) |
6f9d8c32 | 339 | { |
9e353e3b NIS |
340 | case '+': |
341 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
342 | break; | |
343 | case 'b': | |
344 | l->flags |= PERLIO_F_BINARY; | |
345 | break; | |
346 | default: | |
347 | errno = EINVAL; | |
348 | return -1; | |
6f9d8c32 NIS |
349 | } |
350 | } | |
9e353e3b NIS |
351 | } |
352 | else | |
353 | { | |
354 | if (l->next) | |
6f9d8c32 | 355 | { |
9e353e3b NIS |
356 | l->flags |= l->next->flags & |
357 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
358 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
6f9d8c32 NIS |
359 | } |
360 | } | |
9e353e3b | 361 | return 0; |
6f9d8c32 NIS |
362 | } |
363 | ||
9e353e3b NIS |
364 | #undef PerlIO_reopen |
365 | PerlIO * | |
366 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 367 | { |
9e353e3b | 368 | if (f) |
6f9d8c32 | 369 | { |
9e353e3b NIS |
370 | PerlIO_flush(f); |
371 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
372 | { | |
373 | PerlIOBase_init(f,mode); | |
374 | return f; | |
375 | } | |
376 | return NULL; | |
6f9d8c32 | 377 | } |
9e353e3b NIS |
378 | else |
379 | return PerlIO_open(path,mode); | |
760ac839 LW |
380 | } |
381 | ||
9e353e3b NIS |
382 | #undef PerlIO_read |
383 | SSize_t | |
384 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 385 | { |
9e353e3b | 386 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
387 | } |
388 | ||
9e353e3b | 389 | #undef PerlIO_ungetc |
6f9d8c32 | 390 | int |
9e353e3b | 391 | PerlIO_ungetc(PerlIO *f, int ch) |
760ac839 | 392 | { |
9e353e3b NIS |
393 | STDCHAR buf = ch; |
394 | if ((*PerlIOBase(f)->tab->Unread)(f,&buf,1) == 1) | |
395 | return ch; | |
396 | return -1; | |
760ac839 LW |
397 | } |
398 | ||
9e353e3b NIS |
399 | #undef PerlIO_write |
400 | SSize_t | |
401 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 402 | { |
9e353e3b | 403 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
404 | } |
405 | ||
9e353e3b | 406 | #undef PerlIO_seek |
6f9d8c32 | 407 | int |
9e353e3b | 408 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 409 | { |
9e353e3b | 410 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
411 | } |
412 | ||
9e353e3b NIS |
413 | #undef PerlIO_tell |
414 | Off_t | |
415 | PerlIO_tell(PerlIO *f) | |
760ac839 | 416 | { |
9e353e3b | 417 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
418 | } |
419 | ||
9e353e3b | 420 | #undef PerlIO_flush |
6f9d8c32 | 421 | int |
9e353e3b | 422 | PerlIO_flush(PerlIO *f) |
760ac839 | 423 | { |
6f9d8c32 NIS |
424 | if (f) |
425 | { | |
9e353e3b | 426 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 427 | } |
9e353e3b | 428 | else |
6f9d8c32 | 429 | { |
9e353e3b NIS |
430 | int code = 0; |
431 | int i; | |
432 | for (i=_perlio_size-1; i >= 0; i--) | |
6f9d8c32 | 433 | { |
9e353e3b NIS |
434 | if ((f = _perlio[i])) |
435 | { | |
436 | if (*f && PerlIO_flush(f) != 0) | |
437 | code = -1; | |
438 | } | |
6f9d8c32 | 439 | } |
9e353e3b | 440 | return code; |
6f9d8c32 | 441 | } |
760ac839 LW |
442 | } |
443 | ||
9e353e3b | 444 | #undef PerlIO_eof |
6f9d8c32 | 445 | int |
9e353e3b | 446 | PerlIO_eof(PerlIO *f) |
760ac839 | 447 | { |
9e353e3b NIS |
448 | return (*PerlIOBase(f)->tab->Eof)(f); |
449 | } | |
450 | ||
451 | #undef PerlIO_error | |
452 | int | |
453 | PerlIO_error(PerlIO *f) | |
454 | { | |
455 | return (*PerlIOBase(f)->tab->Error)(f); | |
456 | } | |
457 | ||
458 | #undef PerlIO_clearerr | |
459 | void | |
460 | PerlIO_clearerr(PerlIO *f) | |
461 | { | |
462 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
463 | } | |
464 | ||
465 | #undef PerlIO_setlinebuf | |
466 | void | |
467 | PerlIO_setlinebuf(PerlIO *f) | |
468 | { | |
469 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
470 | } | |
471 | ||
472 | #undef PerlIO_has_base | |
473 | int | |
474 | PerlIO_has_base(PerlIO *f) | |
475 | { | |
476 | if (f && *f) | |
6f9d8c32 | 477 | { |
9e353e3b | 478 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 479 | } |
9e353e3b | 480 | return 0; |
760ac839 LW |
481 | } |
482 | ||
9e353e3b NIS |
483 | #undef PerlIO_fast_gets |
484 | int | |
485 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 486 | { |
9e353e3b | 487 | if (f && *f) |
6f9d8c32 | 488 | { |
c7fc522f NIS |
489 | PerlIOl *l = PerlIOBase(f); |
490 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 491 | } |
9e353e3b NIS |
492 | return 0; |
493 | } | |
494 | ||
495 | #undef PerlIO_has_cntptr | |
496 | int | |
497 | PerlIO_has_cntptr(PerlIO *f) | |
498 | { | |
499 | if (f && *f) | |
500 | { | |
501 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
502 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
503 | } | |
504 | return 0; | |
505 | } | |
506 | ||
507 | #undef PerlIO_canset_cnt | |
508 | int | |
509 | PerlIO_canset_cnt(PerlIO *f) | |
510 | { | |
511 | if (f && *f) | |
512 | { | |
c7fc522f NIS |
513 | PerlIOl *l = PerlIOBase(f); |
514 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 515 | } |
c7fc522f | 516 | return 0; |
760ac839 LW |
517 | } |
518 | ||
519 | #undef PerlIO_get_base | |
888911fc | 520 | STDCHAR * |
a20bf0c3 | 521 | PerlIO_get_base(PerlIO *f) |
760ac839 | 522 | { |
9e353e3b NIS |
523 | return (*PerlIOBase(f)->tab->Get_base)(f); |
524 | } | |
525 | ||
526 | #undef PerlIO_get_bufsiz | |
527 | int | |
528 | PerlIO_get_bufsiz(PerlIO *f) | |
529 | { | |
530 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
531 | } | |
532 | ||
533 | #undef PerlIO_get_ptr | |
534 | STDCHAR * | |
535 | PerlIO_get_ptr(PerlIO *f) | |
536 | { | |
537 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
538 | } | |
539 | ||
540 | #undef PerlIO_get_cnt | |
541 | SSize_t | |
542 | PerlIO_get_cnt(PerlIO *f) | |
543 | { | |
544 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
545 | } | |
546 | ||
547 | #undef PerlIO_set_cnt | |
548 | void | |
549 | PerlIO_set_cnt(PerlIO *f,SSize_t cnt) | |
550 | { | |
551 | return (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); | |
552 | } | |
553 | ||
554 | #undef PerlIO_set_ptrcnt | |
555 | void | |
556 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) | |
557 | { | |
558 | return (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); | |
559 | } | |
560 | ||
561 | /*--------------------------------------------------------------------------------------*/ | |
562 | /* "Methods" of the "base class" */ | |
563 | ||
564 | IV | |
565 | PerlIOBase_fileno(PerlIO *f) | |
566 | { | |
567 | return PerlIO_fileno(PerlIONext(f)); | |
568 | } | |
569 | ||
570 | PerlIO * | |
571 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
572 | { | |
573 | PerlIOl *l = NULL; | |
574 | Newc('L',l,tab->size,char,PerlIOl); | |
575 | if (l) | |
6f9d8c32 | 576 | { |
9e353e3b NIS |
577 | Zero(l,tab->size,char); |
578 | l->next = *f; | |
579 | l->tab = tab; | |
580 | *f = l; | |
581 | PerlIOBase_init(f,mode); | |
6f9d8c32 | 582 | } |
9e353e3b | 583 | return f; |
760ac839 LW |
584 | } |
585 | ||
9e353e3b NIS |
586 | SSize_t |
587 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
588 | { | |
589 | Off_t old = PerlIO_tell(f); | |
590 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
591 | { | |
592 | Off_t new = PerlIO_tell(f); | |
593 | return old - new; | |
594 | } | |
595 | return 0; | |
596 | } | |
597 | ||
598 | IV | |
599 | PerlIOBase_sync(PerlIO *f) | |
600 | { | |
601 | return 0; | |
602 | } | |
603 | ||
604 | IV | |
605 | PerlIOBase_close(PerlIO *f) | |
606 | { | |
607 | IV code = 0; | |
608 | if (PerlIO_flush(f) != 0) | |
609 | code = -1; | |
610 | if (PerlIO_close(PerlIONext(f)) != 0) | |
611 | code = -1; | |
612 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
613 | return code; | |
614 | } | |
615 | ||
616 | IV | |
617 | PerlIOBase_eof(PerlIO *f) | |
618 | { | |
619 | if (f && *f) | |
620 | { | |
621 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
622 | } | |
623 | return 1; | |
624 | } | |
625 | ||
626 | IV | |
627 | PerlIOBase_error(PerlIO *f) | |
628 | { | |
629 | if (f && *f) | |
630 | { | |
631 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
632 | } | |
633 | return 1; | |
634 | } | |
635 | ||
636 | void | |
637 | PerlIOBase_clearerr(PerlIO *f) | |
638 | { | |
639 | if (f && *f) | |
640 | { | |
641 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
642 | } | |
643 | } | |
644 | ||
645 | void | |
646 | PerlIOBase_setlinebuf(PerlIO *f) | |
647 | { | |
648 | ||
649 | } | |
650 | ||
651 | ||
652 | ||
653 | /*--------------------------------------------------------------------------------------*/ | |
654 | /* Bottom-most level for UNIX-like case */ | |
655 | ||
656 | typedef struct | |
657 | { | |
658 | struct _PerlIO base; /* The generic part */ | |
659 | int fd; /* UNIX like file descriptor */ | |
660 | int oflags; /* open/fcntl flags */ | |
661 | } PerlIOUnix; | |
662 | ||
6f9d8c32 | 663 | int |
9e353e3b | 664 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 665 | { |
9e353e3b NIS |
666 | int oflags = -1; |
667 | switch(*mode) | |
668 | { | |
669 | case 'r': | |
670 | oflags = O_RDONLY; | |
671 | if (*++mode == '+') | |
672 | { | |
673 | oflags = O_RDWR; | |
674 | mode++; | |
675 | } | |
676 | break; | |
677 | ||
678 | case 'w': | |
679 | oflags = O_CREAT|O_TRUNC; | |
680 | if (*++mode == '+') | |
681 | { | |
682 | oflags |= O_RDWR; | |
683 | mode++; | |
684 | } | |
685 | else | |
686 | oflags |= O_WRONLY; | |
687 | break; | |
688 | ||
689 | case 'a': | |
690 | oflags = O_CREAT|O_APPEND; | |
691 | if (*++mode == '+') | |
692 | { | |
693 | oflags |= O_RDWR; | |
694 | mode++; | |
695 | } | |
696 | else | |
697 | oflags |= O_WRONLY; | |
698 | break; | |
699 | } | |
700 | if (*mode || oflags == -1) | |
6f9d8c32 | 701 | { |
9e353e3b NIS |
702 | errno = EINVAL; |
703 | oflags = -1; | |
6f9d8c32 | 704 | } |
9e353e3b NIS |
705 | return oflags; |
706 | } | |
707 | ||
708 | IV | |
709 | PerlIOUnix_fileno(PerlIO *f) | |
710 | { | |
711 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
712 | } | |
713 | ||
714 | PerlIO * | |
715 | PerlIOUnix_fdopen(int fd,const char *mode) | |
716 | { | |
717 | PerlIO *f = NULL; | |
c7fc522f NIS |
718 | if (*mode == 'I') |
719 | mode++; | |
9e353e3b NIS |
720 | if (fd >= 0) |
721 | { | |
722 | int oflags = PerlIOUnix_oflags(mode); | |
723 | if (oflags != -1) | |
724 | { | |
725 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
726 | s->fd = fd; | |
727 | s->oflags = oflags; | |
728 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
729 | } | |
730 | } | |
731 | return f; | |
732 | } | |
733 | ||
734 | PerlIO * | |
735 | PerlIOUnix_open(const char *path,const char *mode) | |
736 | { | |
737 | PerlIO *f = NULL; | |
738 | int oflags = PerlIOUnix_oflags(mode); | |
739 | if (oflags != -1) | |
740 | { | |
741 | int fd = open(path,oflags,0666); | |
742 | if (fd >= 0) | |
743 | { | |
744 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_unix,mode),PerlIOUnix); | |
745 | s->fd = fd; | |
746 | s->oflags = oflags; | |
747 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
748 | } | |
749 | } | |
750 | return f; | |
760ac839 LW |
751 | } |
752 | ||
760ac839 | 753 | int |
9e353e3b | 754 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 755 | { |
9e353e3b NIS |
756 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
757 | int oflags = PerlIOUnix_oflags(mode); | |
758 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
759 | (*PerlIOBase(f)->tab->Close)(f); | |
760 | if (oflags != -1) | |
761 | { | |
762 | int fd = open(path,oflags,0666); | |
763 | if (fd >= 0) | |
764 | { | |
765 | s->fd = fd; | |
766 | s->oflags = oflags; | |
767 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
768 | return 0; | |
769 | } | |
770 | } | |
771 | return -1; | |
772 | } | |
773 | ||
774 | SSize_t | |
775 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
776 | { | |
777 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
778 | while (1) | |
779 | { | |
780 | SSize_t len = read(fd,vbuf,count); | |
781 | if (len >= 0 || errno != EINTR) | |
782 | return len; | |
783 | } | |
784 | } | |
785 | ||
786 | SSize_t | |
787 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
788 | { | |
789 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
790 | while (1) | |
791 | { | |
792 | SSize_t len = write(fd,vbuf,count); | |
793 | if (len >= 0 || errno != EINTR) | |
794 | return len; | |
795 | } | |
796 | } | |
797 | ||
798 | IV | |
799 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
800 | { | |
801 | Off_t new = lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); | |
802 | return (new == (Off_t) -1) ? -1 : 0; | |
803 | } | |
804 | ||
805 | Off_t | |
806 | PerlIOUnix_tell(PerlIO *f) | |
807 | { | |
808 | return lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); | |
809 | } | |
810 | ||
811 | IV | |
812 | PerlIOUnix_close(PerlIO *f) | |
813 | { | |
814 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
815 | int code = 0; | |
816 | while (close(fd) != 0) | |
817 | { | |
818 | if (errno != EINTR) | |
819 | { | |
820 | code = -1; | |
821 | break; | |
822 | } | |
823 | } | |
824 | if (code == 0) | |
825 | { | |
826 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
827 | } | |
828 | return code; | |
829 | } | |
830 | ||
831 | PerlIO_funcs PerlIO_unix = { | |
832 | "unix", | |
833 | sizeof(PerlIOUnix), | |
834 | 0, | |
835 | PerlIOUnix_fileno, | |
836 | PerlIOUnix_fdopen, | |
837 | PerlIOUnix_open, | |
838 | PerlIOUnix_reopen, | |
839 | PerlIOUnix_read, | |
840 | PerlIOBase_unread, | |
841 | PerlIOUnix_write, | |
842 | PerlIOUnix_seek, | |
843 | PerlIOUnix_tell, | |
844 | PerlIOUnix_close, | |
845 | PerlIOBase_sync, | |
846 | PerlIOBase_eof, | |
847 | PerlIOBase_error, | |
848 | PerlIOBase_clearerr, | |
849 | PerlIOBase_setlinebuf, | |
850 | NULL, /* get_base */ | |
851 | NULL, /* get_bufsiz */ | |
852 | NULL, /* get_ptr */ | |
853 | NULL, /* get_cnt */ | |
854 | NULL, /* set_ptrcnt */ | |
855 | }; | |
856 | ||
857 | /*--------------------------------------------------------------------------------------*/ | |
858 | /* stdio as a layer */ | |
859 | ||
860 | typedef struct | |
861 | { | |
862 | struct _PerlIO base; | |
863 | FILE * stdio; /* The stream */ | |
864 | } PerlIOStdio; | |
865 | ||
866 | IV | |
867 | PerlIOStdio_fileno(PerlIO *f) | |
868 | { | |
869 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
870 | } | |
871 | ||
872 | ||
873 | PerlIO * | |
874 | PerlIOStdio_fdopen(int fd,const char *mode) | |
875 | { | |
876 | PerlIO *f = NULL; | |
c7fc522f NIS |
877 | int init = 0; |
878 | if (*mode == 'I') | |
879 | { | |
880 | init = 1; | |
881 | mode++; | |
882 | } | |
9e353e3b NIS |
883 | if (fd >= 0) |
884 | { | |
c7fc522f NIS |
885 | FILE *stdio = NULL; |
886 | if (init) | |
887 | { | |
888 | switch(fd) | |
889 | { | |
890 | case 0: | |
891 | stdio = stdin; | |
892 | break; | |
893 | case 1: | |
894 | stdio = stdout; | |
895 | break; | |
896 | case 2: | |
897 | stdio = stderr; | |
898 | break; | |
899 | } | |
900 | } | |
901 | else | |
902 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
903 | if (stdio) |
904 | { | |
905 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
906 | s->stdio = stdio; | |
907 | } | |
908 | } | |
909 | return f; | |
910 | } | |
911 | ||
912 | #undef PerlIO_importFILE | |
913 | PerlIO * | |
914 | PerlIO_importFILE(FILE *stdio, int fl) | |
915 | { | |
916 | PerlIO *f = NULL; | |
917 | if (stdio) | |
918 | { | |
919 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
920 | s->stdio = stdio; | |
921 | } | |
922 | return f; | |
923 | } | |
924 | ||
925 | PerlIO * | |
926 | PerlIOStdio_open(const char *path,const char *mode) | |
927 | { | |
928 | PerlIO *f = NULL; | |
929 | FILE *stdio = fopen(path,mode); | |
930 | if (stdio) | |
931 | { | |
932 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,mode),PerlIOStdio); | |
933 | s->stdio = stdio; | |
934 | } | |
935 | return f; | |
760ac839 LW |
936 | } |
937 | ||
6f9d8c32 | 938 | int |
9e353e3b NIS |
939 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
940 | { | |
941 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
942 | FILE *stdio = freopen(path,mode,s->stdio); | |
943 | if (!s->stdio) | |
944 | return -1; | |
945 | s->stdio = stdio; | |
946 | return 0; | |
947 | } | |
948 | ||
949 | SSize_t | |
950 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
951 | { | |
952 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 953 | SSize_t got = 0; |
9e353e3b NIS |
954 | if (count == 1) |
955 | { | |
956 | STDCHAR *buf = (STDCHAR *) vbuf; | |
957 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
958 | * Linux's stdio does not do that for fread() | |
959 | */ | |
960 | int ch = fgetc(s); | |
961 | if (ch != EOF) | |
962 | { | |
963 | *buf = ch; | |
c7fc522f | 964 | got = 1; |
9e353e3b | 965 | } |
9e353e3b | 966 | } |
c7fc522f NIS |
967 | else |
968 | got = fread(vbuf,1,count,s); | |
969 | return got; | |
9e353e3b NIS |
970 | } |
971 | ||
972 | SSize_t | |
973 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
974 | { | |
975 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
976 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
977 | SSize_t unread = 0; | |
978 | while (count > 0) | |
979 | { | |
980 | int ch = *buf-- & 0xff; | |
981 | if (ungetc(ch,s) != ch) | |
982 | break; | |
983 | unread++; | |
984 | count--; | |
985 | } | |
986 | return unread; | |
987 | } | |
988 | ||
989 | SSize_t | |
990 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
991 | { | |
992 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
993 | } | |
994 | ||
995 | IV | |
996 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
997 | { | |
c7fc522f NIS |
998 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
999 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1000 | } |
1001 | ||
1002 | Off_t | |
1003 | PerlIOStdio_tell(PerlIO *f) | |
1004 | { | |
c7fc522f NIS |
1005 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1006 | return ftell(stdio); | |
9e353e3b NIS |
1007 | } |
1008 | ||
1009 | IV | |
1010 | PerlIOStdio_close(PerlIO *f) | |
1011 | { | |
1012 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1013 | } | |
1014 | ||
1015 | IV | |
1016 | PerlIOStdio_flush(PerlIO *f) | |
1017 | { | |
1018 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1019 | return fflush(stdio); | |
1020 | } | |
1021 | ||
1022 | IV | |
1023 | PerlIOStdio_eof(PerlIO *f) | |
1024 | { | |
1025 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1026 | } | |
1027 | ||
1028 | IV | |
1029 | PerlIOStdio_error(PerlIO *f) | |
1030 | { | |
1031 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1032 | } | |
1033 | ||
1034 | void | |
1035 | PerlIOStdio_clearerr(PerlIO *f) | |
1036 | { | |
1037 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1038 | } | |
1039 | ||
1040 | void | |
1041 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1042 | { | |
1043 | #ifdef HAS_SETLINEBUF | |
1044 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1045 | #else | |
1046 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1047 | #endif | |
1048 | } | |
1049 | ||
1050 | #ifdef FILE_base | |
1051 | STDCHAR * | |
1052 | PerlIOStdio_get_base(PerlIO *f) | |
1053 | { | |
1054 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1055 | return FILE_base(stdio); | |
1056 | } | |
1057 | ||
1058 | Size_t | |
1059 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1060 | { | |
1061 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1062 | return FILE_bufsiz(stdio); | |
1063 | } | |
1064 | #endif | |
1065 | ||
1066 | #ifdef USE_STDIO_PTR | |
1067 | STDCHAR * | |
1068 | PerlIOStdio_get_ptr(PerlIO *f) | |
1069 | { | |
1070 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1071 | return FILE_ptr(stdio); | |
1072 | } | |
1073 | ||
1074 | SSize_t | |
1075 | PerlIOStdio_get_cnt(PerlIO *f) | |
1076 | { | |
1077 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1078 | return FILE_cnt(stdio); | |
1079 | } | |
1080 | ||
1081 | void | |
1082 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1083 | { | |
1084 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1085 | if (ptr != NULL) | |
1086 | { | |
1087 | #ifdef STDIO_PTR_LVALUE | |
1088 | FILE_ptr(stdio) = ptr; | |
1089 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1090 | if (FILE_cnt(stdio) != (cnt)) | |
1091 | { | |
1092 | dTHX; | |
1093 | assert(FILE_cnt(stdio) == (cnt)); | |
1094 | } | |
1095 | #endif | |
1096 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1097 | /* Setting ptr _does_ change cnt - we are done */ | |
1098 | return; | |
1099 | #endif | |
1100 | #else /* STDIO_PTR_LVALUE */ | |
1101 | abort(); | |
1102 | #endif /* STDIO_PTR_LVALUE */ | |
1103 | } | |
1104 | /* Now (or only) set cnt */ | |
1105 | #ifdef STDIO_CNT_LVALUE | |
1106 | FILE_cnt(stdio) = cnt; | |
1107 | #else /* STDIO_CNT_LVALUE */ | |
1108 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1109 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1110 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1111 | abort(); | |
1112 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1113 | #endif /* STDIO_CNT_LVALUE */ | |
1114 | } | |
1115 | ||
1116 | #endif | |
1117 | ||
1118 | PerlIO_funcs PerlIO_stdio = { | |
1119 | "stdio", | |
1120 | sizeof(PerlIOStdio), | |
1121 | 0, | |
1122 | PerlIOStdio_fileno, | |
1123 | PerlIOStdio_fdopen, | |
1124 | PerlIOStdio_open, | |
1125 | PerlIOStdio_reopen, | |
1126 | PerlIOStdio_read, | |
1127 | PerlIOStdio_unread, | |
1128 | PerlIOStdio_write, | |
1129 | PerlIOStdio_seek, | |
1130 | PerlIOStdio_tell, | |
1131 | PerlIOStdio_close, | |
1132 | PerlIOStdio_flush, | |
1133 | PerlIOStdio_eof, | |
1134 | PerlIOStdio_error, | |
1135 | PerlIOStdio_clearerr, | |
1136 | PerlIOStdio_setlinebuf, | |
1137 | #ifdef FILE_base | |
1138 | PerlIOStdio_get_base, | |
1139 | PerlIOStdio_get_bufsiz, | |
1140 | #else | |
1141 | NULL, | |
1142 | NULL, | |
1143 | #endif | |
1144 | #ifdef USE_STDIO_PTR | |
1145 | PerlIOStdio_get_ptr, | |
1146 | PerlIOStdio_get_cnt, | |
1147 | #if (defined(STDIO_PTR_LVALUE) && \ | |
1148 | (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) | |
1149 | PerlIOStdio_set_ptrcnt | |
1150 | #else /* STDIO_PTR_LVALUE */ | |
1151 | NULL | |
1152 | #endif /* STDIO_PTR_LVALUE */ | |
1153 | #else /* USE_STDIO_PTR */ | |
1154 | NULL, | |
1155 | NULL, | |
1156 | NULL | |
1157 | #endif /* USE_STDIO_PTR */ | |
1158 | }; | |
1159 | ||
1160 | #undef PerlIO_exportFILE | |
1161 | FILE * | |
1162 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1163 | { | |
1164 | PerlIO_flush(f); | |
1165 | /* Should really push stdio discipline when we have them */ | |
1166 | return fdopen(PerlIO_fileno(f),"r+"); | |
1167 | } | |
1168 | ||
1169 | #undef PerlIO_findFILE | |
1170 | FILE * | |
1171 | PerlIO_findFILE(PerlIO *f) | |
1172 | { | |
1173 | return PerlIO_exportFILE(f,0); | |
1174 | } | |
1175 | ||
1176 | #undef PerlIO_releaseFILE | |
1177 | void | |
1178 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1179 | { | |
1180 | } | |
1181 | ||
1182 | /*--------------------------------------------------------------------------------------*/ | |
1183 | /* perlio buffer layer */ | |
1184 | ||
1185 | typedef struct | |
760ac839 | 1186 | { |
9e353e3b NIS |
1187 | struct _PerlIO base; |
1188 | Off_t posn; /* Offset of buf into the file */ | |
1189 | STDCHAR * buf; /* Start of buffer */ | |
1190 | STDCHAR * end; /* End of valid part of buffer */ | |
1191 | STDCHAR * ptr; /* Current position in buffer */ | |
1192 | Size_t bufsiz; /* Size of buffer */ | |
1193 | IV oneword; /* Emergency buffer */ | |
1194 | } PerlIOBuf; | |
1195 | ||
1196 | ||
1197 | PerlIO * | |
1198 | PerlIOBuf_fdopen(int fd, const char *mode) | |
1199 | { | |
1200 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1201 | int init = 0; |
1202 | PerlIO *f; | |
1203 | if (*mode == 'I') | |
1204 | { | |
1205 | init = 1; | |
1206 | mode++; | |
1207 | } | |
1208 | f = (*tab->Fdopen)(fd,mode); | |
6f9d8c32 NIS |
1209 | if (f) |
1210 | { | |
c7fc522f NIS |
1211 | /* Initial stderr is unbuffered */ |
1212 | if (!init || fd != 2) | |
1213 | { | |
1214 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1215 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1216 | } | |
6f9d8c32 | 1217 | } |
9e353e3b | 1218 | return f; |
760ac839 LW |
1219 | } |
1220 | ||
9e353e3b NIS |
1221 | PerlIO * |
1222 | PerlIOBuf_open(const char *path, const char *mode) | |
8c86a920 | 1223 | { |
9e353e3b NIS |
1224 | PerlIO_funcs *tab = PerlIO_default_btm(); |
1225 | PerlIO *f = (*tab->Open)(path,mode); | |
1226 | if (f) | |
1227 | { | |
1228 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,&PerlIO_perlio,NULL),PerlIOBuf); | |
1229 | b->posn = 0; | |
1230 | } | |
1231 | return f; | |
1232 | } | |
1233 | ||
1234 | int | |
1235 | PerlIOBase_reopen(const char *path, const char *mode, PerlIO *f) | |
1236 | { | |
1237 | return (*PerlIOBase(f)->tab->Reopen)(path,mode,PerlIONext(f)); | |
1238 | } | |
1239 | ||
1240 | void | |
1241 | PerlIOBuf_alloc_buf(PerlIOBuf *b) | |
1242 | { | |
1243 | if (!b->bufsiz) | |
1244 | b->bufsiz = 4096; | |
1245 | New('B',b->buf,b->bufsiz,char); | |
1246 | if (!b->buf) | |
1247 | { | |
1248 | b->buf = (STDCHAR *)&b->oneword; | |
1249 | b->bufsiz = sizeof(b->oneword); | |
1250 | } | |
1251 | b->ptr = b->buf; | |
1252 | b->end = b->ptr; | |
8c86a920 | 1253 | } |
1254 | ||
9e353e3b NIS |
1255 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1256 | read or write state | |
1257 | */ | |
1258 | IV | |
1259 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1260 | { |
9e353e3b NIS |
1261 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1262 | int code = 0; | |
1263 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1264 | { | |
1265 | /* write() the buffer */ | |
1266 | STDCHAR *p = b->buf; | |
1267 | int count; | |
1268 | while (p < b->ptr) | |
1269 | { | |
1270 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1271 | if (count > 0) | |
1272 | { | |
1273 | p += count; | |
1274 | } | |
1275 | else if (count < 0) | |
1276 | { | |
1277 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1278 | code = -1; | |
1279 | break; | |
1280 | } | |
1281 | } | |
1282 | b->posn += (p - b->buf); | |
1283 | } | |
1284 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1285 | { |
9e353e3b NIS |
1286 | /* Note position change */ |
1287 | b->posn += (b->ptr - b->buf); | |
1288 | if (b->ptr < b->end) | |
1289 | { | |
1290 | /* We did not consume all of it */ | |
1291 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1292 | { | |
1293 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1294 | } | |
1295 | } | |
6f9d8c32 | 1296 | } |
9e353e3b NIS |
1297 | b->ptr = b->end = b->buf; |
1298 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1299 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1300 | code = -1; | |
1301 | return code; | |
6f9d8c32 NIS |
1302 | } |
1303 | ||
6f9d8c32 | 1304 | SSize_t |
9e353e3b | 1305 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1306 | { |
9e353e3b | 1307 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1308 | STDCHAR *buf = (STDCHAR *) vbuf; |
1309 | if (f) | |
1310 | { | |
1311 | Size_t got = 0; | |
9e353e3b NIS |
1312 | if (!b->ptr) |
1313 | PerlIOBuf_alloc_buf(b); | |
1314 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
f89522bf | 1315 | return 0; |
6f9d8c32 NIS |
1316 | while (count > 0) |
1317 | { | |
9e353e3b | 1318 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1319 | if ((SSize_t) count < avail) |
1320 | avail = count; | |
1321 | if (avail > 0) | |
1322 | { | |
9e353e3b | 1323 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1324 | got += avail; |
9e353e3b | 1325 | b->ptr += avail; |
6f9d8c32 NIS |
1326 | count -= avail; |
1327 | buf += avail; | |
1328 | } | |
9e353e3b | 1329 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1330 | { |
bb9950b7 | 1331 | PerlIO_flush(f); |
9e353e3b NIS |
1332 | b->ptr = b->end = b->buf; |
1333 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
6f9d8c32 NIS |
1334 | if (avail <= 0) |
1335 | { | |
1336 | if (avail == 0) | |
9e353e3b | 1337 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
6f9d8c32 | 1338 | else |
9e353e3b | 1339 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
6f9d8c32 NIS |
1340 | break; |
1341 | } | |
9e353e3b NIS |
1342 | b->end = b->buf+avail; |
1343 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
6f9d8c32 NIS |
1344 | } |
1345 | } | |
1346 | return got; | |
1347 | } | |
1348 | return 0; | |
1349 | } | |
1350 | ||
9e353e3b NIS |
1351 | SSize_t |
1352 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1353 | { |
9e353e3b NIS |
1354 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1355 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1356 | SSize_t unread = 0; | |
1357 | SSize_t avail; | |
1358 | if (!b->buf) | |
1359 | PerlIOBuf_alloc_buf(b); | |
1360 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1361 | PerlIO_flush(f); | |
1362 | if (b->buf) | |
1363 | { | |
1364 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1365 | { | |
1366 | avail = (b->ptr - b->buf); | |
1367 | if (avail > (SSize_t) count) | |
1368 | avail = count; | |
1369 | b->ptr -= avail; | |
1370 | } | |
1371 | else | |
1372 | { | |
1373 | avail = b->bufsiz; | |
1374 | if (avail > (SSize_t) count) | |
1375 | avail = count; | |
1376 | b->end = b->ptr + avail; | |
1377 | } | |
1378 | if (avail > 0) | |
1379 | { | |
1380 | buf -= avail; | |
1381 | if (buf != b->ptr) | |
1382 | { | |
1383 | Copy(buf,b->ptr,avail,char); | |
1384 | } | |
1385 | count -= avail; | |
1386 | unread += avail; | |
1387 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1388 | } | |
1389 | } | |
1390 | return unread; | |
760ac839 LW |
1391 | } |
1392 | ||
9e353e3b NIS |
1393 | SSize_t |
1394 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1395 | { |
9e353e3b NIS |
1396 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1397 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1398 | Size_t written = 0; | |
1399 | if (!b->buf) | |
1400 | PerlIOBuf_alloc_buf(b); | |
1401 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
1402 | return 0; | |
1403 | while (count > 0) | |
1404 | { | |
1405 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1406 | if ((SSize_t) count < avail) | |
1407 | avail = count; | |
1408 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1409 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1410 | { | |
1411 | while (avail > 0) | |
1412 | { | |
1413 | int ch = *buf++; | |
1414 | *(b->ptr)++ = ch; | |
1415 | count--; | |
1416 | avail--; | |
1417 | written++; | |
1418 | if (ch == '\n') | |
1419 | { | |
1420 | PerlIO_flush(f); | |
1421 | break; | |
1422 | } | |
1423 | } | |
1424 | } | |
1425 | else | |
1426 | { | |
1427 | if (avail) | |
1428 | { | |
1429 | Copy(buf,b->ptr,avail,char); | |
1430 | count -= avail; | |
1431 | buf += avail; | |
1432 | written += avail; | |
1433 | b->ptr += avail; | |
1434 | } | |
1435 | } | |
1436 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1437 | PerlIO_flush(f); | |
1438 | } | |
1439 | return written; | |
1440 | } | |
1441 | ||
1442 | IV | |
1443 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1444 | { | |
1445 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1446 | int code; | |
1447 | code = PerlIO_flush(f); | |
1448 | if (code == 0) | |
1449 | { | |
1450 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1451 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1452 | if (code == 0) | |
1453 | { | |
1454 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1455 | } | |
1456 | } | |
1457 | return code; | |
1458 | } | |
1459 | ||
1460 | Off_t | |
1461 | PerlIOBuf_tell(PerlIO *f) | |
1462 | { | |
1463 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1464 | Off_t posn = b->posn; | |
1465 | if (b->buf) | |
1466 | posn += (b->ptr - b->buf); | |
1467 | return posn; | |
1468 | } | |
1469 | ||
1470 | IV | |
1471 | PerlIOBuf_close(PerlIO *f) | |
1472 | { | |
1473 | IV code = PerlIOBase_close(f); | |
1474 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1475 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1476 | { |
9e353e3b | 1477 | Safefree(b->buf); |
6f9d8c32 | 1478 | } |
9e353e3b NIS |
1479 | b->buf = NULL; |
1480 | b->ptr = b->end = b->buf; | |
1481 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1482 | return code; | |
760ac839 LW |
1483 | } |
1484 | ||
760ac839 | 1485 | void |
9e353e3b | 1486 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1487 | { |
6f9d8c32 NIS |
1488 | if (f) |
1489 | { | |
9e353e3b | 1490 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1491 | } |
760ac839 LW |
1492 | } |
1493 | ||
760ac839 | 1494 | void |
9e353e3b | 1495 | PerlIOBuf_set_cnt(PerlIO *f, int cnt) |
760ac839 | 1496 | { |
9e353e3b NIS |
1497 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1498 | dTHX; | |
1499 | if (!b->buf) | |
1500 | PerlIOBuf_alloc_buf(b); | |
1501 | b->ptr = b->end - cnt; | |
1502 | assert(b->ptr >= b->buf); | |
1503 | } | |
1504 | ||
1505 | STDCHAR * | |
1506 | PerlIOBuf_get_ptr(PerlIO *f) | |
1507 | { | |
1508 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1509 | if (!b->buf) | |
1510 | PerlIOBuf_alloc_buf(b); | |
1511 | return b->ptr; | |
1512 | } | |
1513 | ||
1514 | int | |
1515 | PerlIOBuf_get_cnt(PerlIO *f) | |
1516 | { | |
1517 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1518 | if (!b->buf) | |
1519 | PerlIOBuf_alloc_buf(b); | |
1520 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1521 | return (b->end - b->ptr); | |
1522 | return 0; | |
1523 | } | |
1524 | ||
1525 | STDCHAR * | |
1526 | PerlIOBuf_get_base(PerlIO *f) | |
1527 | { | |
1528 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1529 | if (!b->buf) | |
1530 | PerlIOBuf_alloc_buf(b); | |
1531 | return b->buf; | |
1532 | } | |
1533 | ||
1534 | Size_t | |
1535 | PerlIOBuf_bufsiz(PerlIO *f) | |
1536 | { | |
1537 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1538 | if (!b->buf) | |
1539 | PerlIOBuf_alloc_buf(b); | |
1540 | return (b->end - b->buf); | |
1541 | } | |
1542 | ||
1543 | void | |
1544 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) | |
1545 | { | |
1546 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1547 | if (!b->buf) | |
1548 | PerlIOBuf_alloc_buf(b); | |
1549 | b->ptr = ptr; | |
1550 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1551 | { |
9e353e3b NIS |
1552 | dTHX; |
1553 | assert(PerlIO_get_cnt(f) == cnt); | |
1554 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1555 | } |
9e353e3b | 1556 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1557 | } |
1558 | ||
9e353e3b NIS |
1559 | PerlIO_funcs PerlIO_perlio = { |
1560 | "perlio", | |
1561 | sizeof(PerlIOBuf), | |
1562 | 0, | |
1563 | PerlIOBase_fileno, | |
1564 | PerlIOBuf_fdopen, | |
1565 | PerlIOBuf_open, | |
1566 | PerlIOBase_reopen, | |
1567 | PerlIOBuf_read, | |
1568 | PerlIOBuf_unread, | |
1569 | PerlIOBuf_write, | |
1570 | PerlIOBuf_seek, | |
1571 | PerlIOBuf_tell, | |
1572 | PerlIOBuf_close, | |
1573 | PerlIOBuf_flush, | |
1574 | PerlIOBase_eof, | |
1575 | PerlIOBase_error, | |
1576 | PerlIOBase_clearerr, | |
1577 | PerlIOBuf_setlinebuf, | |
1578 | PerlIOBuf_get_base, | |
1579 | PerlIOBuf_bufsiz, | |
1580 | PerlIOBuf_get_ptr, | |
1581 | PerlIOBuf_get_cnt, | |
1582 | PerlIOBuf_set_ptrcnt, | |
1583 | }; | |
1584 | ||
1585 | void | |
1586 | PerlIO_init(void) | |
760ac839 | 1587 | { |
9e353e3b | 1588 | if (!_perlio) |
6f9d8c32 | 1589 | { |
9e353e3b | 1590 | atexit(&PerlIO_cleanup); |
c7fc522f NIS |
1591 | PerlIO_fdopen(0,"Ir"); |
1592 | PerlIO_fdopen(1,"Iw"); | |
1593 | PerlIO_fdopen(2,"Iw"); | |
6f9d8c32 | 1594 | } |
760ac839 LW |
1595 | } |
1596 | ||
9e353e3b NIS |
1597 | #undef PerlIO_stdin |
1598 | PerlIO * | |
1599 | PerlIO_stdin(void) | |
1600 | { | |
1601 | if (!_perlio) | |
1602 | PerlIO_init(); | |
1603 | return _perlio[0]; | |
1604 | } | |
1605 | ||
1606 | #undef PerlIO_stdout | |
1607 | PerlIO * | |
1608 | PerlIO_stdout(void) | |
1609 | { | |
1610 | if (!_perlio) | |
1611 | PerlIO_init(); | |
1612 | return _perlio[1]; | |
1613 | } | |
1614 | ||
1615 | #undef PerlIO_stderr | |
1616 | PerlIO * | |
1617 | PerlIO_stderr(void) | |
1618 | { | |
1619 | if (!_perlio) | |
1620 | PerlIO_init(); | |
1621 | return _perlio[2]; | |
1622 | } | |
1623 | ||
1624 | /*--------------------------------------------------------------------------------------*/ | |
1625 | ||
1626 | #undef PerlIO_getname | |
1627 | char * | |
1628 | PerlIO_getname(PerlIO *f, char *buf) | |
1629 | { | |
1630 | dTHX; | |
1631 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
1632 | return NULL; | |
1633 | } | |
1634 | ||
1635 | ||
1636 | /*--------------------------------------------------------------------------------------*/ | |
1637 | /* Functions which can be called on any kind of PerlIO implemented | |
1638 | in terms of above | |
1639 | */ | |
1640 | ||
1641 | #undef PerlIO_getc | |
6f9d8c32 | 1642 | int |
9e353e3b | 1643 | PerlIO_getc(PerlIO *f) |
760ac839 | 1644 | { |
9e353e3b NIS |
1645 | STDCHAR buf; |
1646 | int count = PerlIO_read(f,&buf,1); | |
1647 | if (count == 1) | |
1648 | return (unsigned char) buf; | |
1649 | return -1; | |
760ac839 LW |
1650 | } |
1651 | ||
9e353e3b NIS |
1652 | #undef PerlIO_putc |
1653 | int | |
1654 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 1655 | { |
9e353e3b NIS |
1656 | STDCHAR buf = ch; |
1657 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
1658 | } |
1659 | ||
9e353e3b | 1660 | #undef PerlIO_puts |
760ac839 | 1661 | int |
9e353e3b | 1662 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 1663 | { |
9e353e3b NIS |
1664 | STRLEN len = strlen(s); |
1665 | return PerlIO_write(f,s,len); | |
760ac839 LW |
1666 | } |
1667 | ||
1668 | #undef PerlIO_rewind | |
1669 | void | |
c78749f2 | 1670 | PerlIO_rewind(PerlIO *f) |
760ac839 | 1671 | { |
6f9d8c32 | 1672 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 1673 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
1674 | } |
1675 | ||
1676 | #undef PerlIO_vprintf | |
1677 | int | |
1678 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
1679 | { | |
1680 | dTHX; | |
bb9950b7 | 1681 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
1682 | char *s; |
1683 | STRLEN len; | |
1684 | sv_vcatpvf(sv, fmt, &ap); | |
1685 | s = SvPV(sv,len); | |
bb9950b7 | 1686 | return PerlIO_write(f,s,len); |
760ac839 LW |
1687 | } |
1688 | ||
1689 | #undef PerlIO_printf | |
6f9d8c32 | 1690 | int |
760ac839 | 1691 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
1692 | { |
1693 | va_list ap; | |
1694 | int result; | |
760ac839 | 1695 | va_start(ap,fmt); |
6f9d8c32 | 1696 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
1697 | va_end(ap); |
1698 | return result; | |
1699 | } | |
1700 | ||
1701 | #undef PerlIO_stdoutf | |
6f9d8c32 | 1702 | int |
760ac839 | 1703 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
1704 | { |
1705 | va_list ap; | |
1706 | int result; | |
760ac839 | 1707 | va_start(ap,fmt); |
760ac839 LW |
1708 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
1709 | va_end(ap); | |
1710 | return result; | |
1711 | } | |
1712 | ||
1713 | #undef PerlIO_tmpfile | |
1714 | PerlIO * | |
c78749f2 | 1715 | PerlIO_tmpfile(void) |
760ac839 | 1716 | { |
6f9d8c32 | 1717 | dTHX; |
b1ef6e3b | 1718 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
1719 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
1720 | int fd = mkstemp(SvPVX(sv)); | |
1721 | PerlIO *f = NULL; | |
1722 | if (fd >= 0) | |
1723 | { | |
b1ef6e3b | 1724 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
1725 | if (f) |
1726 | { | |
9e353e3b | 1727 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 NIS |
1728 | } |
1729 | unlink(SvPVX(sv)); | |
1730 | SvREFCNT_dec(sv); | |
1731 | } | |
1732 | return f; | |
760ac839 LW |
1733 | } |
1734 | ||
6f9d8c32 NIS |
1735 | #undef HAS_FSETPOS |
1736 | #undef HAS_FGETPOS | |
1737 | ||
760ac839 LW |
1738 | #endif /* USE_SFIO */ |
1739 | #endif /* PERLIO_IS_STDIO */ | |
1740 | ||
9e353e3b NIS |
1741 | /*======================================================================================*/ |
1742 | /* Now some functions in terms of above which may be needed even if | |
1743 | we are not in true PerlIO mode | |
1744 | */ | |
1745 | ||
760ac839 LW |
1746 | #ifndef HAS_FSETPOS |
1747 | #undef PerlIO_setpos | |
1748 | int | |
c78749f2 | 1749 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 1750 | { |
6f9d8c32 | 1751 | return PerlIO_seek(f,*pos,0); |
760ac839 | 1752 | } |
c411622e | 1753 | #else |
1754 | #ifndef PERLIO_IS_STDIO | |
1755 | #undef PerlIO_setpos | |
1756 | int | |
c78749f2 | 1757 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 1758 | { |
2d4389e4 | 1759 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1760 | return fsetpos64(f, pos); |
1761 | #else | |
c411622e | 1762 | return fsetpos(f, pos); |
d9b3e12d | 1763 | #endif |
c411622e | 1764 | } |
1765 | #endif | |
760ac839 LW |
1766 | #endif |
1767 | ||
1768 | #ifndef HAS_FGETPOS | |
1769 | #undef PerlIO_getpos | |
1770 | int | |
c78749f2 | 1771 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
1772 | { |
1773 | *pos = PerlIO_tell(f); | |
1774 | return 0; | |
1775 | } | |
c411622e | 1776 | #else |
1777 | #ifndef PERLIO_IS_STDIO | |
1778 | #undef PerlIO_getpos | |
1779 | int | |
c78749f2 | 1780 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 1781 | { |
2d4389e4 | 1782 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
1783 | return fgetpos64(f, pos); |
1784 | #else | |
c411622e | 1785 | return fgetpos(f, pos); |
d9b3e12d | 1786 | #endif |
c411622e | 1787 | } |
1788 | #endif | |
760ac839 LW |
1789 | #endif |
1790 | ||
1791 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
1792 | ||
1793 | int | |
c78749f2 | 1794 | vprintf(char *pat, char *args) |
662a7e3f CS |
1795 | { |
1796 | _doprnt(pat, args, stdout); | |
1797 | return 0; /* wrong, but perl doesn't use the return value */ | |
1798 | } | |
1799 | ||
1800 | int | |
c78749f2 | 1801 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
1802 | { |
1803 | _doprnt(pat, args, fd); | |
1804 | return 0; /* wrong, but perl doesn't use the return value */ | |
1805 | } | |
1806 | ||
1807 | #endif | |
1808 | ||
1809 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 1810 | int |
8ac85365 | 1811 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
1812 | { |
1813 | int val = vsprintf(s, fmt, ap); | |
1814 | if (n >= 0) | |
1815 | { | |
8c86a920 | 1816 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 1817 | { |
bf49b057 GS |
1818 | dTHX; |
1819 | PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n"); | |
1820 | my_exit(1); | |
760ac839 LW |
1821 | } |
1822 | } | |
1823 | return val; | |
1824 | } | |
1825 | #endif | |
1826 | ||
1827 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 1828 | int |
760ac839 | 1829 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
1830 | { |
1831 | va_list ap; | |
1832 | int result; | |
760ac839 | 1833 | va_start(ap,fmt); |
760ac839 LW |
1834 | result = PerlIO_vsprintf(s, n, fmt, ap); |
1835 | va_end(ap); | |
1836 | return result; | |
1837 | } | |
1838 | #endif | |
1839 | ||
c5be433b GS |
1840 | #endif /* !PERL_IMPLICIT_SYS */ |
1841 |