Commit | Line | Data |
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760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
c5be433b | 10 | |
760ac839 LW |
11 | #define VOIDUSED 1 |
12 | #include "config.h" | |
13 | ||
14 | #define PERLIO_NOT_STDIO 0 | |
15 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) | |
16 | #define PerlIO FILE | |
17 | #endif | |
18 | /* | |
19 | * This file provides those parts of PerlIO abstraction | |
0f4eea8f | 20 | * which are not #defined in iperlsys.h. |
760ac839 LW |
21 | * Which these are depends on various Configure #ifdef's |
22 | */ | |
23 | ||
24 | #include "EXTERN.h" | |
864dbfa3 | 25 | #define PERL_IN_PERLIO_C |
760ac839 LW |
26 | #include "perl.h" |
27 | ||
32e30700 GS |
28 | #if !defined(PERL_IMPLICIT_SYS) |
29 | ||
760ac839 LW |
30 | #ifdef PERLIO_IS_STDIO |
31 | ||
32 | void | |
8ac85365 | 33 | PerlIO_init(void) |
760ac839 LW |
34 | { |
35 | /* Does nothing (yet) except force this file to be included | |
36 | in perl binary. That allows this file to force inclusion | |
37 | of other functions that may be required by loadable | |
38 | extensions e.g. for FileHandle::tmpfile | |
39 | */ | |
40 | } | |
41 | ||
33dcbb9a | 42 | #undef PerlIO_tmpfile |
43 | PerlIO * | |
8ac85365 | 44 | PerlIO_tmpfile(void) |
33dcbb9a | 45 | { |
46 | return tmpfile(); | |
47 | } | |
48 | ||
760ac839 LW |
49 | #else /* PERLIO_IS_STDIO */ |
50 | ||
51 | #ifdef USE_SFIO | |
52 | ||
53 | #undef HAS_FSETPOS | |
54 | #undef HAS_FGETPOS | |
55 | ||
56 | /* This section is just to make sure these functions | |
57 | get pulled in from libsfio.a | |
58 | */ | |
59 | ||
60 | #undef PerlIO_tmpfile | |
61 | PerlIO * | |
c78749f2 | 62 | PerlIO_tmpfile(void) |
760ac839 LW |
63 | { |
64 | return sftmp(0); | |
65 | } | |
66 | ||
67 | void | |
c78749f2 | 68 | PerlIO_init(void) |
760ac839 LW |
69 | { |
70 | /* Force this file to be included in perl binary. Which allows | |
71 | * this file to force inclusion of other functions that may be | |
72 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
73 | */ | |
74 | ||
75 | /* Hack | |
76 | * sfio does its own 'autoflush' on stdout in common cases. | |
77 | * Flush results in a lot of lseek()s to regular files and | |
78 | * lot of small writes to pipes. | |
79 | */ | |
80 | sfset(sfstdout,SF_SHARE,0); | |
81 | } | |
82 | ||
17c3b450 | 83 | #else /* USE_SFIO */ |
760ac839 LW |
84 | |
85 | /* Implement all the PerlIO interface using stdio. | |
86 | - this should be only file to include <stdio.h> | |
87 | */ | |
88 | ||
89 | #undef PerlIO_stderr | |
90 | PerlIO * | |
c78749f2 | 91 | PerlIO_stderr(void) |
760ac839 LW |
92 | { |
93 | return (PerlIO *) stderr; | |
94 | } | |
95 | ||
96 | #undef PerlIO_stdin | |
97 | PerlIO * | |
c78749f2 | 98 | PerlIO_stdin(void) |
760ac839 LW |
99 | { |
100 | return (PerlIO *) stdin; | |
101 | } | |
102 | ||
103 | #undef PerlIO_stdout | |
104 | PerlIO * | |
c78749f2 | 105 | PerlIO_stdout(void) |
760ac839 LW |
106 | { |
107 | return (PerlIO *) stdout; | |
108 | } | |
109 | ||
760ac839 LW |
110 | #undef PerlIO_fast_gets |
111 | int | |
c78749f2 | 112 | PerlIO_fast_gets(PerlIO *f) |
760ac839 LW |
113 | { |
114 | #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) | |
115 | return 1; | |
116 | #else | |
117 | return 0; | |
118 | #endif | |
119 | } | |
120 | ||
121 | #undef PerlIO_has_cntptr | |
122 | int | |
c78749f2 | 123 | PerlIO_has_cntptr(PerlIO *f) |
760ac839 LW |
124 | { |
125 | #if defined(USE_STDIO_PTR) | |
126 | return 1; | |
127 | #else | |
128 | return 0; | |
129 | #endif | |
130 | } | |
131 | ||
132 | #undef PerlIO_canset_cnt | |
133 | int | |
c78749f2 | 134 | PerlIO_canset_cnt(PerlIO *f) |
760ac839 LW |
135 | { |
136 | #if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE) | |
137 | return 1; | |
138 | #else | |
139 | return 0; | |
140 | #endif | |
141 | } | |
142 | ||
143 | #undef PerlIO_set_cnt | |
144 | void | |
a20bf0c3 | 145 | PerlIO_set_cnt(PerlIO *f, int cnt) |
760ac839 | 146 | { |
961e40ee SB |
147 | dTHX; |
148 | if (cnt < -1 && ckWARN_d(WARN_INTERNAL)) | |
0453d815 | 149 | Perl_warner(aTHX_ WARN_INTERNAL, "Setting cnt to %d\n",cnt); |
760ac839 LW |
150 | #if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE) |
151 | FILE_cnt(f) = cnt; | |
152 | #else | |
cea2e8a9 | 153 | Perl_croak(aTHX_ "Cannot set 'cnt' of FILE * on this system"); |
760ac839 LW |
154 | #endif |
155 | } | |
156 | ||
157 | #undef PerlIO_set_ptrcnt | |
158 | void | |
a20bf0c3 | 159 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
760ac839 | 160 | { |
961e40ee | 161 | dTHX; |
409faa39 | 162 | #ifdef FILE_bufsiz |
888911fc CS |
163 | STDCHAR *e = FILE_base(f) + FILE_bufsiz(f); |
164 | int ec = e - ptr; | |
961e40ee | 165 | if (ptr > e + 1 && ckWARN_d(WARN_INTERNAL)) |
0453d815 | 166 | Perl_warner(aTHX_ WARN_INTERNAL, "Setting ptr %p > end+1 %p\n", ptr, e + 1); |
961e40ee | 167 | if (cnt != ec && ckWARN_d(WARN_INTERNAL)) |
0453d815 | 168 | Perl_warner(aTHX_ WARN_INTERNAL, "Setting cnt to %d, ptr implies %d\n",cnt,ec); |
33dcbb9a | 169 | #endif |
760ac839 | 170 | #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) |
409faa39 | 171 | FILE_ptr(f) = ptr; |
760ac839 | 172 | #else |
409faa39 | 173 | Perl_croak(aTHX_ "Cannot set 'ptr' of FILE * on this system"); |
760ac839 LW |
174 | #endif |
175 | #if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE) | |
409faa39 | 176 | FILE_cnt(f) = cnt; |
760ac839 | 177 | #else |
409faa39 | 178 | Perl_croak(aTHX_ "Cannot set 'cnt' of FILE * on this system"); |
760ac839 LW |
179 | #endif |
180 | } | |
181 | ||
182 | #undef PerlIO_get_cnt | |
183 | int | |
a20bf0c3 | 184 | PerlIO_get_cnt(PerlIO *f) |
760ac839 LW |
185 | { |
186 | #ifdef FILE_cnt | |
187 | return FILE_cnt(f); | |
188 | #else | |
961e40ee | 189 | dTHX; |
cea2e8a9 | 190 | Perl_croak(aTHX_ "Cannot get 'cnt' of FILE * on this system"); |
760ac839 LW |
191 | return -1; |
192 | #endif | |
193 | } | |
194 | ||
195 | #undef PerlIO_get_bufsiz | |
196 | int | |
a20bf0c3 | 197 | PerlIO_get_bufsiz(PerlIO *f) |
760ac839 LW |
198 | { |
199 | #ifdef FILE_bufsiz | |
200 | return FILE_bufsiz(f); | |
201 | #else | |
961e40ee | 202 | dTHX; |
cea2e8a9 | 203 | Perl_croak(aTHX_ "Cannot get 'bufsiz' of FILE * on this system"); |
760ac839 LW |
204 | return -1; |
205 | #endif | |
206 | } | |
207 | ||
208 | #undef PerlIO_get_ptr | |
888911fc | 209 | STDCHAR * |
a20bf0c3 | 210 | PerlIO_get_ptr(PerlIO *f) |
760ac839 LW |
211 | { |
212 | #ifdef FILE_ptr | |
888911fc | 213 | return FILE_ptr(f); |
760ac839 | 214 | #else |
961e40ee | 215 | dTHX; |
cea2e8a9 | 216 | Perl_croak(aTHX_ "Cannot get 'ptr' of FILE * on this system"); |
760ac839 LW |
217 | return NULL; |
218 | #endif | |
219 | } | |
220 | ||
221 | #undef PerlIO_get_base | |
888911fc | 222 | STDCHAR * |
a20bf0c3 | 223 | PerlIO_get_base(PerlIO *f) |
760ac839 LW |
224 | { |
225 | #ifdef FILE_base | |
888911fc | 226 | return FILE_base(f); |
760ac839 | 227 | #else |
961e40ee | 228 | dTHX; |
cea2e8a9 | 229 | Perl_croak(aTHX_ "Cannot get 'base' of FILE * on this system"); |
760ac839 LW |
230 | return NULL; |
231 | #endif | |
232 | } | |
233 | ||
234 | #undef PerlIO_has_base | |
235 | int | |
c78749f2 | 236 | PerlIO_has_base(PerlIO *f) |
760ac839 LW |
237 | { |
238 | #ifdef FILE_base | |
239 | return 1; | |
240 | #else | |
241 | return 0; | |
242 | #endif | |
243 | } | |
244 | ||
245 | #undef PerlIO_puts | |
246 | int | |
c78749f2 | 247 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 LW |
248 | { |
249 | return fputs(s,f); | |
250 | } | |
251 | ||
252 | #undef PerlIO_open | |
253 | PerlIO * | |
c78749f2 | 254 | PerlIO_open(const char *path, const char *mode) |
760ac839 LW |
255 | { |
256 | return fopen(path,mode); | |
257 | } | |
258 | ||
259 | #undef PerlIO_fdopen | |
260 | PerlIO * | |
c78749f2 | 261 | PerlIO_fdopen(int fd, const char *mode) |
760ac839 LW |
262 | { |
263 | return fdopen(fd,mode); | |
264 | } | |
265 | ||
8c86a920 | 266 | #undef PerlIO_reopen |
267 | PerlIO * | |
c78749f2 | 268 | PerlIO_reopen(const char *name, const char *mode, PerlIO *f) |
8c86a920 | 269 | { |
270 | return freopen(name,mode,f); | |
271 | } | |
760ac839 LW |
272 | |
273 | #undef PerlIO_close | |
274 | int | |
c78749f2 | 275 | PerlIO_close(PerlIO *f) |
760ac839 LW |
276 | { |
277 | return fclose(f); | |
278 | } | |
279 | ||
280 | #undef PerlIO_eof | |
281 | int | |
c78749f2 | 282 | PerlIO_eof(PerlIO *f) |
760ac839 LW |
283 | { |
284 | return feof(f); | |
285 | } | |
286 | ||
8c86a920 | 287 | #undef PerlIO_getname |
288 | char * | |
a20bf0c3 | 289 | PerlIO_getname(PerlIO *f, char *buf) |
8c86a920 | 290 | { |
291 | #ifdef VMS | |
292 | return fgetname(f,buf); | |
293 | #else | |
961e40ee | 294 | dTHX; |
cea2e8a9 | 295 | Perl_croak(aTHX_ "Don't know how to get file name"); |
c64afb19 | 296 | return NULL; |
8c86a920 | 297 | #endif |
298 | } | |
299 | ||
760ac839 LW |
300 | #undef PerlIO_getc |
301 | int | |
c78749f2 | 302 | PerlIO_getc(PerlIO *f) |
760ac839 LW |
303 | { |
304 | return fgetc(f); | |
305 | } | |
306 | ||
307 | #undef PerlIO_error | |
308 | int | |
c78749f2 | 309 | PerlIO_error(PerlIO *f) |
760ac839 LW |
310 | { |
311 | return ferror(f); | |
312 | } | |
313 | ||
314 | #undef PerlIO_clearerr | |
315 | void | |
c78749f2 | 316 | PerlIO_clearerr(PerlIO *f) |
760ac839 LW |
317 | { |
318 | clearerr(f); | |
319 | } | |
320 | ||
321 | #undef PerlIO_flush | |
322 | int | |
c78749f2 | 323 | PerlIO_flush(PerlIO *f) |
760ac839 LW |
324 | { |
325 | return Fflush(f); | |
326 | } | |
327 | ||
328 | #undef PerlIO_fileno | |
329 | int | |
c78749f2 | 330 | PerlIO_fileno(PerlIO *f) |
760ac839 LW |
331 | { |
332 | return fileno(f); | |
333 | } | |
334 | ||
335 | #undef PerlIO_setlinebuf | |
336 | void | |
c78749f2 | 337 | PerlIO_setlinebuf(PerlIO *f) |
760ac839 LW |
338 | { |
339 | #ifdef HAS_SETLINEBUF | |
340 | setlinebuf(f); | |
341 | #else | |
3e3baf6d TB |
342 | # ifdef __BORLANDC__ /* Borland doesn't like NULL size for _IOLBF */ |
343 | setvbuf(f, Nullch, _IOLBF, BUFSIZ); | |
344 | # else | |
760ac839 | 345 | setvbuf(f, Nullch, _IOLBF, 0); |
3e3baf6d | 346 | # endif |
760ac839 LW |
347 | #endif |
348 | } | |
349 | ||
350 | #undef PerlIO_putc | |
351 | int | |
c78749f2 | 352 | PerlIO_putc(PerlIO *f, int ch) |
760ac839 | 353 | { |
9010f3dd | 354 | return putc(ch,f); |
760ac839 LW |
355 | } |
356 | ||
357 | #undef PerlIO_ungetc | |
358 | int | |
c78749f2 | 359 | PerlIO_ungetc(PerlIO *f, int ch) |
760ac839 | 360 | { |
9010f3dd | 361 | return ungetc(ch,f); |
760ac839 LW |
362 | } |
363 | ||
364 | #undef PerlIO_read | |
5b54f415 | 365 | SSize_t |
c78749f2 | 366 | PerlIO_read(PerlIO *f, void *buf, Size_t count) |
760ac839 LW |
367 | { |
368 | return fread(buf,1,count,f); | |
369 | } | |
370 | ||
371 | #undef PerlIO_write | |
5b54f415 | 372 | SSize_t |
c78749f2 | 373 | PerlIO_write(PerlIO *f, const void *buf, Size_t count) |
760ac839 LW |
374 | { |
375 | return fwrite1(buf,1,count,f); | |
376 | } | |
377 | ||
378 | #undef PerlIO_vprintf | |
379 | int | |
c78749f2 | 380 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) |
760ac839 LW |
381 | { |
382 | return vfprintf(f,fmt,ap); | |
383 | } | |
384 | ||
760ac839 | 385 | #undef PerlIO_tell |
5ff3f7a4 | 386 | Off_t |
c78749f2 | 387 | PerlIO_tell(PerlIO *f) |
760ac839 | 388 | { |
dad16317 RB |
389 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64) |
390 | return ftello(f); | |
391 | #else | |
760ac839 | 392 | return ftell(f); |
dad16317 | 393 | #endif |
760ac839 LW |
394 | } |
395 | ||
396 | #undef PerlIO_seek | |
397 | int | |
c78749f2 | 398 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 399 | { |
dad16317 RB |
400 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64) |
401 | return fseeko(f,offset,whence); | |
402 | #else | |
760ac839 | 403 | return fseek(f,offset,whence); |
dad16317 | 404 | #endif |
760ac839 LW |
405 | } |
406 | ||
407 | #undef PerlIO_rewind | |
408 | void | |
c78749f2 | 409 | PerlIO_rewind(PerlIO *f) |
760ac839 LW |
410 | { |
411 | rewind(f); | |
412 | } | |
413 | ||
414 | #undef PerlIO_printf | |
415 | int | |
760ac839 | 416 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
417 | { |
418 | va_list ap; | |
419 | int result; | |
760ac839 | 420 | va_start(ap,fmt); |
760ac839 LW |
421 | result = vfprintf(f,fmt,ap); |
422 | va_end(ap); | |
423 | return result; | |
424 | } | |
425 | ||
426 | #undef PerlIO_stdoutf | |
427 | int | |
760ac839 | 428 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
429 | { |
430 | va_list ap; | |
431 | int result; | |
760ac839 | 432 | va_start(ap,fmt); |
760ac839 LW |
433 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
434 | va_end(ap); | |
435 | return result; | |
436 | } | |
437 | ||
438 | #undef PerlIO_tmpfile | |
439 | PerlIO * | |
c78749f2 | 440 | PerlIO_tmpfile(void) |
760ac839 LW |
441 | { |
442 | return tmpfile(); | |
443 | } | |
444 | ||
445 | #undef PerlIO_importFILE | |
446 | PerlIO * | |
c78749f2 | 447 | PerlIO_importFILE(FILE *f, int fl) |
760ac839 LW |
448 | { |
449 | return f; | |
450 | } | |
451 | ||
452 | #undef PerlIO_exportFILE | |
453 | FILE * | |
c78749f2 | 454 | PerlIO_exportFILE(PerlIO *f, int fl) |
760ac839 LW |
455 | { |
456 | return f; | |
457 | } | |
458 | ||
459 | #undef PerlIO_findFILE | |
460 | FILE * | |
c78749f2 | 461 | PerlIO_findFILE(PerlIO *f) |
760ac839 LW |
462 | { |
463 | return f; | |
464 | } | |
465 | ||
466 | #undef PerlIO_releaseFILE | |
467 | void | |
c78749f2 | 468 | PerlIO_releaseFILE(PerlIO *p, FILE *f) |
760ac839 LW |
469 | { |
470 | } | |
471 | ||
472 | void | |
c78749f2 | 473 | PerlIO_init(void) |
760ac839 LW |
474 | { |
475 | /* Does nothing (yet) except force this file to be included | |
476 | in perl binary. That allows this file to force inclusion | |
477 | of other functions that may be required by loadable | |
478 | extensions e.g. for FileHandle::tmpfile | |
479 | */ | |
480 | } | |
481 | ||
482 | #endif /* USE_SFIO */ | |
483 | #endif /* PERLIO_IS_STDIO */ | |
484 | ||
485 | #ifndef HAS_FSETPOS | |
486 | #undef PerlIO_setpos | |
487 | int | |
c78749f2 | 488 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 LW |
489 | { |
490 | return PerlIO_seek(f,*pos,0); | |
491 | } | |
c411622e | 492 | #else |
493 | #ifndef PERLIO_IS_STDIO | |
494 | #undef PerlIO_setpos | |
495 | int | |
c78749f2 | 496 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 497 | { |
2d4389e4 | 498 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
499 | return fsetpos64(f, pos); |
500 | #else | |
c411622e | 501 | return fsetpos(f, pos); |
d9b3e12d | 502 | #endif |
c411622e | 503 | } |
504 | #endif | |
760ac839 LW |
505 | #endif |
506 | ||
507 | #ifndef HAS_FGETPOS | |
508 | #undef PerlIO_getpos | |
509 | int | |
c78749f2 | 510 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
511 | { |
512 | *pos = PerlIO_tell(f); | |
513 | return 0; | |
514 | } | |
c411622e | 515 | #else |
516 | #ifndef PERLIO_IS_STDIO | |
517 | #undef PerlIO_getpos | |
518 | int | |
c78749f2 | 519 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 520 | { |
2d4389e4 | 521 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
522 | return fgetpos64(f, pos); |
523 | #else | |
c411622e | 524 | return fgetpos(f, pos); |
d9b3e12d | 525 | #endif |
c411622e | 526 | } |
527 | #endif | |
760ac839 LW |
528 | #endif |
529 | ||
530 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
531 | ||
532 | int | |
c78749f2 | 533 | vprintf(char *pat, char *args) |
662a7e3f CS |
534 | { |
535 | _doprnt(pat, args, stdout); | |
536 | return 0; /* wrong, but perl doesn't use the return value */ | |
537 | } | |
538 | ||
539 | int | |
c78749f2 | 540 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
541 | { |
542 | _doprnt(pat, args, fd); | |
543 | return 0; /* wrong, but perl doesn't use the return value */ | |
544 | } | |
545 | ||
546 | #endif | |
547 | ||
548 | #ifndef PerlIO_vsprintf | |
549 | int | |
8ac85365 | 550 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
551 | { |
552 | int val = vsprintf(s, fmt, ap); | |
553 | if (n >= 0) | |
554 | { | |
8c86a920 | 555 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 556 | { |
bf49b057 GS |
557 | dTHX; |
558 | PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n"); | |
559 | my_exit(1); | |
760ac839 LW |
560 | } |
561 | } | |
562 | return val; | |
563 | } | |
564 | #endif | |
565 | ||
566 | #ifndef PerlIO_sprintf | |
567 | int | |
760ac839 | 568 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
569 | { |
570 | va_list ap; | |
571 | int result; | |
760ac839 | 572 | va_start(ap,fmt); |
760ac839 LW |
573 | result = PerlIO_vsprintf(s, n, fmt, ap); |
574 | va_end(ap); | |
575 | return result; | |
576 | } | |
577 | #endif | |
578 | ||
c5be433b GS |
579 | #endif /* !PERL_IMPLICIT_SYS */ |
580 |