Commit | Line | Data |
---|---|---|
14a5cf38 | 1 | /* |
71200d45 | 2 | * perlio.c Copyright (c) 1996-2001, Nick Ing-Simmons You may distribute |
14a5cf38 | 3 | * under the terms of either the GNU General Public License or the |
71200d45 | 4 | * Artistic License, as specified in the README file. |
760ac839 LW |
5 | */ |
6 | ||
14a5cf38 | 7 | /* |
71200d45 | 8 | * If we have ActivePerl-like PERL_IMPLICIT_SYS then we need a dTHX to get |
14a5cf38 | 9 | * at the dispatch tables, even when we do not need it for other reasons. |
71200d45 | 10 | * Invent a dSYS macro to abstract this out |
14a5cf38 | 11 | */ |
7bcba3d4 NIS |
12 | #ifdef PERL_IMPLICIT_SYS |
13 | #define dSYS dTHX | |
14 | #else | |
15 | #define dSYS dNOOP | |
16 | #endif | |
17 | ||
760ac839 | 18 | #define VOIDUSED 1 |
12ae5dfc JH |
19 | #ifdef PERL_MICRO |
20 | # include "uconfig.h" | |
21 | #else | |
22 | # include "config.h" | |
23 | #endif | |
760ac839 | 24 | |
6f9d8c32 | 25 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 26 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
14a5cf38 | 27 | /* |
71200d45 | 28 | * #define PerlIO FILE |
14a5cf38 | 29 | */ |
760ac839 LW |
30 | #endif |
31 | /* | |
6f9d8c32 | 32 | * This file provides those parts of PerlIO abstraction |
88b61e10 | 33 | * which are not #defined in perlio.h. |
6f9d8c32 | 34 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
35 | */ |
36 | ||
37 | #include "EXTERN.h" | |
864dbfa3 | 38 | #define PERL_IN_PERLIO_C |
760ac839 LW |
39 | #include "perl.h" |
40 | ||
32af7c23 CL |
41 | #ifdef PERL_IMPLICIT_CONTEXT |
42 | #undef dSYS | |
43 | #define dSYS dTHX | |
44 | #endif | |
45 | ||
0c4f7ff0 NIS |
46 | #include "XSUB.h" |
47 | ||
60382766 | 48 | int |
f5b9d040 | 49 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 | 50 | { |
14a5cf38 | 51 | /* |
71200d45 | 52 | * This used to be contents of do_binmode in doio.c |
14a5cf38 | 53 | */ |
60382766 NIS |
54 | #ifdef DOSISH |
55 | # if defined(atarist) || defined(__MINT__) | |
f5b9d040 | 56 | if (!fflush(fp)) { |
60382766 | 57 | if (mode & O_BINARY) |
14a5cf38 | 58 | ((FILE *) fp)->_flag |= _IOBIN; |
60382766 | 59 | else |
14a5cf38 | 60 | ((FILE *) fp)->_flag &= ~_IOBIN; |
60382766 NIS |
61 | return 1; |
62 | } | |
63 | return 0; | |
64 | # else | |
eb73beca | 65 | dTHX; |
14a5cf38 JH |
66 | #ifdef NETWARE |
67 | if (PerlLIO_setmode(fp, mode) != -1) { | |
68 | #else | |
f5b9d040 | 69 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
14a5cf38 | 70 | #endif |
60382766 | 71 | # if defined(WIN32) && defined(__BORLANDC__) |
14a5cf38 | 72 | /* |
71200d45 | 73 | * The translation mode of the stream is maintained independent of |
14a5cf38 | 74 | * the translation mode of the fd in the Borland RTL (heavy |
71200d45 | 75 | * digging through their runtime sources reveal). User has to set |
14a5cf38 | 76 | * the mode explicitly for the stream (though they don't document |
71200d45 | 77 | * this anywhere). GSAR 97-5-24 |
60382766 | 78 | */ |
14a5cf38 | 79 | fseek(fp, 0L, 0); |
60382766 | 80 | if (mode & O_BINARY) |
f5b9d040 | 81 | fp->flags |= _F_BIN; |
60382766 | 82 | else |
14a5cf38 | 83 | fp->flags &= ~_F_BIN; |
60382766 NIS |
84 | # endif |
85 | return 1; | |
86 | } | |
87 | else | |
88 | return 0; | |
89 | # endif | |
90 | #else | |
91 | # if defined(USEMYBINMODE) | |
92 | if (my_binmode(fp, iotype, mode) != FALSE) | |
93 | return 1; | |
94 | else | |
95 | return 0; | |
96 | # else | |
97 | return 1; | |
98 | # endif | |
99 | #endif | |
100 | } | |
101 | ||
06c7082d NIS |
102 | #ifndef O_ACCMODE |
103 | #define O_ACCMODE 3 /* Assume traditional implementation */ | |
104 | #endif | |
105 | ||
106 | int | |
107 | PerlIO_intmode2str(int rawmode, char *mode, int *writing) | |
108 | { | |
109 | int result = rawmode & O_ACCMODE; | |
110 | int ix = 0; | |
111 | int ptype; | |
112 | switch (result) { | |
113 | case O_RDONLY: | |
114 | ptype = IoTYPE_RDONLY; | |
115 | break; | |
116 | case O_WRONLY: | |
117 | ptype = IoTYPE_WRONLY; | |
118 | break; | |
119 | case O_RDWR: | |
120 | default: | |
121 | ptype = IoTYPE_RDWR; | |
122 | break; | |
123 | } | |
124 | if (writing) | |
125 | *writing = (result != O_RDONLY); | |
126 | ||
127 | if (result == O_RDONLY) { | |
128 | mode[ix++] = 'r'; | |
129 | } | |
130 | #ifdef O_APPEND | |
131 | else if (rawmode & O_APPEND) { | |
132 | mode[ix++] = 'a'; | |
133 | if (result != O_WRONLY) | |
134 | mode[ix++] = '+'; | |
135 | } | |
136 | #endif | |
137 | else { | |
138 | if (result == O_WRONLY) | |
139 | mode[ix++] = 'w'; | |
140 | else { | |
141 | mode[ix++] = 'r'; | |
142 | mode[ix++] = '+'; | |
143 | } | |
144 | } | |
145 | if (rawmode & O_BINARY) | |
146 | mode[ix++] = 'b'; | |
147 | mode[ix] = '\0'; | |
148 | return ptype; | |
149 | } | |
150 | ||
eb73beca NIS |
151 | #ifndef PERLIO_LAYERS |
152 | int | |
153 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
154 | { | |
14a5cf38 JH |
155 | if (!names || !*names || strEQ(names, ":crlf") || strEQ(names, ":raw")) { |
156 | return 0; | |
157 | } | |
158 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl", names); | |
159 | /* | |
71200d45 | 160 | * NOTREACHED |
14a5cf38 JH |
161 | */ |
162 | return -1; | |
eb73beca NIS |
163 | } |
164 | ||
13621cfb NIS |
165 | void |
166 | PerlIO_destruct(pTHX) | |
167 | { | |
168 | } | |
169 | ||
f5b9d040 NIS |
170 | int |
171 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) | |
172 | { | |
92bff44d | 173 | #ifdef USE_SFIO |
14a5cf38 | 174 | return 1; |
92bff44d | 175 | #else |
14a5cf38 | 176 | return perlsio_binmode(fp, iotype, mode); |
92bff44d | 177 | #endif |
f5b9d040 | 178 | } |
60382766 | 179 | |
e0fa5af2 | 180 | PerlIO * |
ecdeb87c | 181 | PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
e0fa5af2 | 182 | { |
7114a2d2 | 183 | #ifndef PERL_MICRO |
e0fa5af2 NIS |
184 | if (f) { |
185 | int fd = PerlLIO_dup(PerlIO_fileno(f)); | |
186 | if (fd >= 0) { | |
06c7082d NIS |
187 | char mode[8]; |
188 | int omode = fcntl(fd, F_GETFL); | |
189 | PerlIO_intmode2str(omode,mode,NULL); | |
e0fa5af2 | 190 | /* the r+ is a hack */ |
06c7082d | 191 | return PerlIO_fdopen(fd, mode); |
e0fa5af2 NIS |
192 | } |
193 | return NULL; | |
194 | } | |
195 | else { | |
196 | SETERRNO(EBADF, SS$_IVCHAN); | |
197 | } | |
7114a2d2 | 198 | #endif |
e0fa5af2 NIS |
199 | return NULL; |
200 | } | |
201 | ||
202 | ||
14a5cf38 | 203 | /* |
71200d45 | 204 | * De-mux PerlIO_openn() into fdopen, freopen and fopen type entries |
14a5cf38 | 205 | */ |
ee518936 NIS |
206 | |
207 | PerlIO * | |
14a5cf38 JH |
208 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, |
209 | int imode, int perm, PerlIO *old, int narg, SV **args) | |
210 | { | |
211 | if (narg == 1) { | |
212 | if (*args == &PL_sv_undef) | |
213 | return PerlIO_tmpfile(); | |
214 | else { | |
215 | char *name = SvPV_nolen(*args); | |
216 | if (*mode == '#') { | |
217 | fd = PerlLIO_open3(name, imode, perm); | |
218 | if (fd >= 0) | |
219 | return PerlIO_fdopen(fd, (char *) mode + 1); | |
220 | } | |
221 | else if (old) { | |
222 | return PerlIO_reopen(name, mode, old); | |
223 | } | |
224 | else { | |
225 | return PerlIO_open(name, mode); | |
226 | } | |
227 | } | |
228 | } | |
229 | else { | |
230 | return PerlIO_fdopen(fd, (char *) mode); | |
231 | } | |
232 | return NULL; | |
ee518936 NIS |
233 | } |
234 | ||
0c4f7ff0 NIS |
235 | XS(XS_PerlIO__Layer__find) |
236 | { | |
14a5cf38 JH |
237 | dXSARGS; |
238 | if (items < 2) | |
239 | Perl_croak(aTHX_ "Usage class->find(name[,load])"); | |
240 | else { | |
241 | char *name = SvPV_nolen(ST(1)); | |
242 | ST(0) = (strEQ(name, "crlf") | |
243 | || strEQ(name, "raw")) ? &PL_sv_yes : &PL_sv_undef; | |
244 | XSRETURN(1); | |
245 | } | |
0c4f7ff0 NIS |
246 | } |
247 | ||
248 | ||
249 | void | |
250 | Perl_boot_core_PerlIO(pTHX) | |
251 | { | |
14a5cf38 | 252 | newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__); |
0c4f7ff0 NIS |
253 | } |
254 | ||
ac27b0f5 NIS |
255 | #endif |
256 | ||
32e30700 | 257 | |
6f9d8c32 | 258 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
259 | |
260 | void | |
e8632036 | 261 | PerlIO_init(pTHX) |
760ac839 | 262 | { |
14a5cf38 JH |
263 | /* |
264 | * Does nothing (yet) except force this file to be included in perl | |
71200d45 | 265 | * binary. That allows this file to force inclusion of other functions |
14a5cf38 | 266 | * that may be required by loadable extensions e.g. for |
71200d45 | 267 | * FileHandle::tmpfile |
14a5cf38 | 268 | */ |
760ac839 LW |
269 | } |
270 | ||
33dcbb9a | 271 | #undef PerlIO_tmpfile |
272 | PerlIO * | |
8ac85365 | 273 | PerlIO_tmpfile(void) |
33dcbb9a | 274 | { |
14a5cf38 | 275 | return tmpfile(); |
33dcbb9a | 276 | } |
277 | ||
14a5cf38 | 278 | #else /* PERLIO_IS_STDIO */ |
760ac839 LW |
279 | |
280 | #ifdef USE_SFIO | |
281 | ||
282 | #undef HAS_FSETPOS | |
283 | #undef HAS_FGETPOS | |
284 | ||
14a5cf38 JH |
285 | /* |
286 | * This section is just to make sure these functions get pulled in from | |
71200d45 | 287 | * libsfio.a |
14a5cf38 | 288 | */ |
760ac839 LW |
289 | |
290 | #undef PerlIO_tmpfile | |
291 | PerlIO * | |
c78749f2 | 292 | PerlIO_tmpfile(void) |
760ac839 | 293 | { |
14a5cf38 | 294 | return sftmp(0); |
760ac839 LW |
295 | } |
296 | ||
297 | void | |
e8632036 | 298 | PerlIO_init(pTHX) |
760ac839 | 299 | { |
14a5cf38 JH |
300 | /* |
301 | * Force this file to be included in perl binary. Which allows this | |
302 | * file to force inclusion of other functions that may be required by | |
71200d45 | 303 | * loadable extensions e.g. for FileHandle::tmpfile |
14a5cf38 | 304 | */ |
760ac839 | 305 | |
14a5cf38 | 306 | /* |
71200d45 | 307 | * Hack sfio does its own 'autoflush' on stdout in common cases. Flush |
14a5cf38 | 308 | * results in a lot of lseek()s to regular files and lot of small |
71200d45 | 309 | * writes to pipes. |
14a5cf38 JH |
310 | */ |
311 | sfset(sfstdout, SF_SHARE, 0); | |
760ac839 LW |
312 | } |
313 | ||
92bff44d NIS |
314 | PerlIO * |
315 | PerlIO_importFILE(FILE *stdio, int fl) | |
316 | { | |
14a5cf38 JH |
317 | int fd = fileno(stdio); |
318 | PerlIO *r = PerlIO_fdopen(fd, "r+"); | |
319 | return r; | |
92bff44d NIS |
320 | } |
321 | ||
322 | FILE * | |
323 | PerlIO_findFILE(PerlIO *pio) | |
324 | { | |
14a5cf38 JH |
325 | int fd = PerlIO_fileno(pio); |
326 | FILE *f = fdopen(fd, "r+"); | |
327 | PerlIO_flush(pio); | |
328 | if (!f && errno == EINVAL) | |
329 | f = fdopen(fd, "w"); | |
330 | if (!f && errno == EINVAL) | |
331 | f = fdopen(fd, "r"); | |
332 | return f; | |
92bff44d NIS |
333 | } |
334 | ||
335 | ||
14a5cf38 | 336 | #else /* USE_SFIO */ |
6f9d8c32 | 337 | /*======================================================================================*/ |
14a5cf38 | 338 | /* |
71200d45 | 339 | * Implement all the PerlIO interface ourselves. |
9e353e3b | 340 | */ |
760ac839 | 341 | |
76ced9ad NIS |
342 | #include "perliol.h" |
343 | ||
14a5cf38 JH |
344 | /* |
345 | * We _MUST_ have <unistd.h> if we are using lseek() and may have large | |
71200d45 | 346 | * files |
14a5cf38 | 347 | */ |
02f66e2f NIS |
348 | #ifdef I_UNISTD |
349 | #include <unistd.h> | |
350 | #endif | |
06da4f11 NIS |
351 | #ifdef HAS_MMAP |
352 | #include <sys/mman.h> | |
353 | #endif | |
354 | ||
02f66e2f | 355 | |
14a5cf38 JH |
356 | void PerlIO_debug(const char *fmt, ...) |
357 | __attribute__ ((format(__printf__, 1, 2))); | |
6f9d8c32 | 358 | |
6f9d8c32 | 359 | void |
14a5cf38 JH |
360 | PerlIO_debug(const char *fmt, ...) |
361 | { | |
362 | static int dbg = 0; | |
363 | va_list ap; | |
364 | dSYS; | |
365 | va_start(ap, fmt); | |
366 | if (!dbg) { | |
367 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); | |
368 | if (s && *s) | |
369 | dbg = PerlLIO_open3(s, O_WRONLY | O_CREAT | O_APPEND, 0666); | |
370 | else | |
371 | dbg = -1; | |
372 | } | |
373 | if (dbg > 0) { | |
374 | dTHX; | |
70ace5da NIS |
375 | #ifdef USE_ITHREADS |
376 | /* Use fixed buffer as sv_catpvf etc. needs SVs */ | |
377 | char buffer[1024]; | |
378 | char *s; | |
379 | STRLEN len; | |
380 | s = CopFILE(PL_curcop); | |
381 | if (!s) | |
382 | s = "(none)"; | |
383 | sprintf(buffer, "%s:%" IVdf " ", s, (IV) CopLINE(PL_curcop)); | |
384 | len = strlen(buffer); | |
385 | vsprintf(buffer+len, fmt, ap); | |
386 | PerlLIO_write(dbg, buffer, strlen(buffer)); | |
387 | #else | |
14a5cf38 JH |
388 | SV *sv = newSVpvn("", 0); |
389 | char *s; | |
390 | STRLEN len; | |
391 | s = CopFILE(PL_curcop); | |
392 | if (!s) | |
393 | s = "(none)"; | |
394 | Perl_sv_catpvf(aTHX_ sv, "%s:%" IVdf " ", s, | |
395 | (IV) CopLINE(PL_curcop)); | |
396 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); | |
397 | ||
398 | s = SvPV(sv, len); | |
399 | PerlLIO_write(dbg, s, len); | |
400 | SvREFCNT_dec(sv); | |
70ace5da | 401 | #endif |
14a5cf38 JH |
402 | } |
403 | va_end(ap); | |
6f9d8c32 NIS |
404 | } |
405 | ||
9e353e3b NIS |
406 | /*--------------------------------------------------------------------------------------*/ |
407 | ||
14a5cf38 | 408 | /* |
71200d45 | 409 | * Inner level routines |
14a5cf38 | 410 | */ |
9e353e3b | 411 | |
14a5cf38 | 412 | /* |
71200d45 | 413 | * Table of pointers to the PerlIO structs (malloc'ed) |
14a5cf38 | 414 | */ |
05d1247b | 415 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 | 416 | |
760ac839 | 417 | PerlIO * |
5f1a76d0 | 418 | PerlIO_allocate(pTHX) |
6f9d8c32 | 419 | { |
14a5cf38 | 420 | /* |
71200d45 | 421 | * Find a free slot in the table, allocating new table as necessary |
14a5cf38 JH |
422 | */ |
423 | PerlIO **last; | |
424 | PerlIO *f; | |
a1ea730d | 425 | last = &PL_perlio; |
14a5cf38 JH |
426 | while ((f = *last)) { |
427 | int i; | |
428 | last = (PerlIO **) (f); | |
429 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
430 | if (!*++f) { | |
431 | return f; | |
432 | } | |
433 | } | |
434 | } | |
3a1ee7e8 | 435 | Newz('I',f,PERLIO_TABLE_SIZE,PerlIO); |
14a5cf38 JH |
436 | if (!f) { |
437 | return NULL; | |
438 | } | |
439 | *last = f; | |
440 | return f + 1; | |
05d1247b NIS |
441 | } |
442 | ||
a1ea730d NIS |
443 | #undef PerlIO_fdupopen |
444 | PerlIO * | |
ecdeb87c | 445 | PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
a1ea730d NIS |
446 | { |
447 | if (f && *f) { | |
448 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
449 | PerlIO *new; | |
450 | PerlIO_debug("fdupopen f=%p param=%p\n",f,param); | |
ecdeb87c | 451 | new = (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX),f,param, flags); |
a1ea730d NIS |
452 | return new; |
453 | } | |
454 | else { | |
455 | SETERRNO(EBADF, SS$_IVCHAN); | |
456 | return NULL; | |
457 | } | |
458 | } | |
459 | ||
460 | void | |
5f1a76d0 | 461 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b | 462 | { |
14a5cf38 JH |
463 | PerlIO *table = *tablep; |
464 | if (table) { | |
465 | int i; | |
466 | PerlIO_cleantable(aTHX_(PerlIO **) & (table[0])); | |
467 | for (i = PERLIO_TABLE_SIZE - 1; i > 0; i--) { | |
468 | PerlIO *f = table + i; | |
469 | if (*f) { | |
470 | PerlIO_close(f); | |
471 | } | |
472 | } | |
3a1ee7e8 | 473 | Safefree(table); |
14a5cf38 | 474 | *tablep = NULL; |
05d1247b | 475 | } |
05d1247b NIS |
476 | } |
477 | ||
fcf2db38 NIS |
478 | |
479 | PerlIO_list_t * | |
3a1ee7e8 | 480 | PerlIO_list_alloc(pTHX) |
fcf2db38 | 481 | { |
14a5cf38 JH |
482 | PerlIO_list_t *list; |
483 | Newz('L', list, 1, PerlIO_list_t); | |
484 | list->refcnt = 1; | |
485 | return list; | |
fcf2db38 NIS |
486 | } |
487 | ||
488 | void | |
3a1ee7e8 | 489 | PerlIO_list_free(pTHX_ PerlIO_list_t *list) |
fcf2db38 | 490 | { |
14a5cf38 JH |
491 | if (list) { |
492 | if (--list->refcnt == 0) { | |
493 | if (list->array) { | |
14a5cf38 JH |
494 | IV i; |
495 | for (i = 0; i < list->cur; i++) { | |
496 | if (list->array[i].arg) | |
497 | SvREFCNT_dec(list->array[i].arg); | |
498 | } | |
499 | Safefree(list->array); | |
500 | } | |
501 | Safefree(list); | |
502 | } | |
503 | } | |
fcf2db38 NIS |
504 | } |
505 | ||
506 | void | |
3a1ee7e8 | 507 | PerlIO_list_push(pTHX_ PerlIO_list_t *list, PerlIO_funcs *funcs, SV *arg) |
14a5cf38 | 508 | { |
14a5cf38 JH |
509 | PerlIO_pair_t *p; |
510 | if (list->cur >= list->len) { | |
511 | list->len += 8; | |
512 | if (list->array) | |
513 | Renew(list->array, list->len, PerlIO_pair_t); | |
514 | else | |
515 | New('l', list->array, list->len, PerlIO_pair_t); | |
516 | } | |
517 | p = &(list->array[list->cur++]); | |
518 | p->funcs = funcs; | |
519 | if ((p->arg = arg)) { | |
520 | SvREFCNT_inc(arg); | |
521 | } | |
fcf2db38 NIS |
522 | } |
523 | ||
3a1ee7e8 NIS |
524 | PerlIO_list_t * |
525 | PerlIO_clone_list(pTHX_ PerlIO_list_t *proto, CLONE_PARAMS *param) | |
526 | { | |
694c95cf JH |
527 | PerlIO_list_t *list = (PerlIO_list_t *) NULL; |
528 | if (proto) { | |
529 | int i; | |
530 | list = PerlIO_list_alloc(aTHX); | |
531 | for (i=0; i < proto->cur; i++) { | |
532 | SV *arg = Nullsv; | |
533 | if (proto->array[i].arg) | |
534 | arg = PerlIO_sv_dup(aTHX_ proto->array[i].arg,param); | |
535 | PerlIO_list_push(aTHX_ list, proto->array[i].funcs, arg); | |
536 | } | |
3a1ee7e8 NIS |
537 | } |
538 | return list; | |
539 | } | |
4a4a6116 | 540 | |
05d1247b | 541 | void |
3a1ee7e8 | 542 | PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param) |
9a6404c5 | 543 | { |
3aaf42a7 | 544 | #ifdef USE_ITHREADS |
3a1ee7e8 NIS |
545 | PerlIO **table = &proto->Iperlio; |
546 | PerlIO *f; | |
547 | PL_perlio = NULL; | |
548 | PL_known_layers = PerlIO_clone_list(aTHX_ proto->Iknown_layers, param); | |
549 | PL_def_layerlist = PerlIO_clone_list(aTHX_ proto->Idef_layerlist, param); | |
550 | PerlIO_allocate(aTHX); /* root slot is never used */ | |
694c95cf | 551 | PerlIO_debug("Clone %p from %p\n",aTHX,proto); |
3a1ee7e8 NIS |
552 | while ((f = *table)) { |
553 | int i; | |
554 | table = (PerlIO **) (f++); | |
555 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
556 | if (*f) { | |
93a8090d | 557 | (void) fp_dup(f, 0, param); |
3a1ee7e8 NIS |
558 | } |
559 | f++; | |
560 | } | |
561 | } | |
3aaf42a7 | 562 | #endif |
9a6404c5 DM |
563 | } |
564 | ||
565 | void | |
13621cfb NIS |
566 | PerlIO_destruct(pTHX) |
567 | { | |
a1ea730d | 568 | PerlIO **table = &PL_perlio; |
14a5cf38 | 569 | PerlIO *f; |
694c95cf JH |
570 | #ifdef USE_ITHREADS |
571 | PerlIO_debug("Destruct %p\n",aTHX); | |
572 | #endif | |
14a5cf38 JH |
573 | while ((f = *table)) { |
574 | int i; | |
575 | table = (PerlIO **) (f++); | |
576 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
577 | PerlIO *x = f; | |
578 | PerlIOl *l; | |
579 | while ((l = *x)) { | |
580 | if (l->tab->kind & PERLIO_K_DESTRUCT) { | |
581 | PerlIO_debug("Destruct popping %s\n", l->tab->name); | |
582 | PerlIO_flush(x); | |
583 | PerlIO_pop(aTHX_ x); | |
584 | } | |
585 | else { | |
586 | x = PerlIONext(x); | |
587 | } | |
588 | } | |
589 | f++; | |
590 | } | |
591 | } | |
3a1ee7e8 NIS |
592 | PerlIO_list_free(aTHX_ PL_known_layers); |
593 | PL_known_layers = NULL; | |
594 | PerlIO_list_free(aTHX_ PL_def_layerlist); | |
595 | PL_def_layerlist = NULL; | |
13621cfb NIS |
596 | } |
597 | ||
598 | void | |
a999f61b | 599 | PerlIO_pop(pTHX_ PerlIO *f) |
760ac839 | 600 | { |
14a5cf38 JH |
601 | PerlIOl *l = *f; |
602 | if (l) { | |
603 | PerlIO_debug("PerlIO_pop f=%p %s\n", f, l->tab->name); | |
604 | if (l->tab->Popped) { | |
605 | /* | |
606 | * If popped returns non-zero do not free its layer structure | |
607 | * it has either done so itself, or it is shared and still in | |
71200d45 | 608 | * use |
14a5cf38 JH |
609 | */ |
610 | if ((*l->tab->Popped) (f) != 0) | |
611 | return; | |
612 | } | |
613 | *f = l->next;; | |
3a1ee7e8 | 614 | Safefree(l); |
a8c08ecd | 615 | } |
6f9d8c32 NIS |
616 | } |
617 | ||
9e353e3b | 618 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 619 | /* |
71200d45 | 620 | * XS Interface for perl code |
14a5cf38 | 621 | */ |
9e353e3b | 622 | |
fcf2db38 | 623 | PerlIO_funcs * |
2edd7e44 | 624 | PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load) |
f3862f8b | 625 | { |
14a5cf38 JH |
626 | IV i; |
627 | if ((SSize_t) len <= 0) | |
628 | len = strlen(name); | |
3a1ee7e8 NIS |
629 | for (i = 0; i < PL_known_layers->cur; i++) { |
630 | PerlIO_funcs *f = PL_known_layers->array[i].funcs; | |
14a5cf38 JH |
631 | if (memEQ(f->name, name, len)) { |
632 | PerlIO_debug("%.*s => %p\n", (int) len, name, f); | |
633 | return f; | |
634 | } | |
635 | } | |
3a1ee7e8 NIS |
636 | if (load && PL_subname && PL_def_layerlist |
637 | && PL_def_layerlist->cur >= 2) { | |
14a5cf38 JH |
638 | SV *pkgsv = newSVpvn("PerlIO", 6); |
639 | SV *layer = newSVpvn(name, len); | |
640 | ENTER; | |
641 | /* | |
71200d45 | 642 | * The two SVs are magically freed by load_module |
14a5cf38 JH |
643 | */ |
644 | Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv); | |
645 | LEAVE; | |
646 | return PerlIO_find_layer(aTHX_ name, len, 0); | |
647 | } | |
648 | PerlIO_debug("Cannot find %.*s\n", (int) len, name); | |
649 | return NULL; | |
f3862f8b NIS |
650 | } |
651 | ||
2a1bc955 | 652 | #ifdef USE_ATTRIBUTES_FOR_PERLIO |
b13b2135 NIS |
653 | |
654 | static int | |
655 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
656 | { | |
14a5cf38 JH |
657 | if (SvROK(sv)) { |
658 | IO *io = GvIOn((GV *) SvRV(sv)); | |
659 | PerlIO *ifp = IoIFP(io); | |
660 | PerlIO *ofp = IoOFP(io); | |
661 | Perl_warn(aTHX_ "set %" SVf " %p %p %p", sv, io, ifp, ofp); | |
662 | } | |
663 | return 0; | |
b13b2135 NIS |
664 | } |
665 | ||
666 | static int | |
667 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
668 | { | |
14a5cf38 JH |
669 | if (SvROK(sv)) { |
670 | IO *io = GvIOn((GV *) SvRV(sv)); | |
671 | PerlIO *ifp = IoIFP(io); | |
672 | PerlIO *ofp = IoOFP(io); | |
673 | Perl_warn(aTHX_ "get %" SVf " %p %p %p", sv, io, ifp, ofp); | |
674 | } | |
675 | return 0; | |
b13b2135 NIS |
676 | } |
677 | ||
678 | static int | |
679 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
680 | { | |
14a5cf38 JH |
681 | Perl_warn(aTHX_ "clear %" SVf, sv); |
682 | return 0; | |
b13b2135 NIS |
683 | } |
684 | ||
685 | static int | |
686 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
687 | { | |
14a5cf38 JH |
688 | Perl_warn(aTHX_ "free %" SVf, sv); |
689 | return 0; | |
b13b2135 NIS |
690 | } |
691 | ||
692 | MGVTBL perlio_vtab = { | |
14a5cf38 JH |
693 | perlio_mg_get, |
694 | perlio_mg_set, | |
695 | NULL, /* len */ | |
696 | perlio_mg_clear, | |
697 | perlio_mg_free | |
b13b2135 NIS |
698 | }; |
699 | ||
700 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
701 | { | |
14a5cf38 JH |
702 | dXSARGS; |
703 | SV *sv = SvRV(ST(1)); | |
704 | AV *av = newAV(); | |
705 | MAGIC *mg; | |
706 | int count = 0; | |
707 | int i; | |
708 | sv_magic(sv, (SV *) av, PERL_MAGIC_ext, NULL, 0); | |
709 | SvRMAGICAL_off(sv); | |
710 | mg = mg_find(sv, PERL_MAGIC_ext); | |
711 | mg->mg_virtual = &perlio_vtab; | |
712 | mg_magical(sv); | |
713 | Perl_warn(aTHX_ "attrib %" SVf, sv); | |
714 | for (i = 2; i < items; i++) { | |
715 | STRLEN len; | |
716 | const char *name = SvPV(ST(i), len); | |
717 | SV *layer = PerlIO_find_layer(aTHX_ name, len, 1); | |
718 | if (layer) { | |
719 | av_push(av, SvREFCNT_inc(layer)); | |
720 | } | |
721 | else { | |
722 | ST(count) = ST(i); | |
723 | count++; | |
724 | } | |
725 | } | |
726 | SvREFCNT_dec(av); | |
727 | XSRETURN(count); | |
728 | } | |
729 | ||
730 | #endif /* USE_ATTIBUTES_FOR_PERLIO */ | |
2a1bc955 | 731 | |
e3f3bf95 NIS |
732 | SV * |
733 | PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab) | |
f3862f8b | 734 | { |
14a5cf38 JH |
735 | HV *stash = gv_stashpv("PerlIO::Layer", TRUE); |
736 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))), stash); | |
737 | return sv; | |
e3f3bf95 NIS |
738 | } |
739 | ||
0c4f7ff0 NIS |
740 | XS(XS_PerlIO__Layer__find) |
741 | { | |
14a5cf38 JH |
742 | dXSARGS; |
743 | if (items < 2) | |
744 | Perl_croak(aTHX_ "Usage class->find(name[,load])"); | |
745 | else { | |
746 | STRLEN len = 0; | |
747 | char *name = SvPV(ST(1), len); | |
748 | bool load = (items > 2) ? SvTRUE(ST(2)) : 0; | |
749 | PerlIO_funcs *layer = PerlIO_find_layer(aTHX_ name, len, load); | |
750 | ST(0) = | |
751 | (layer) ? sv_2mortal(PerlIO_tab_sv(aTHX_ layer)) : | |
752 | &PL_sv_undef; | |
753 | XSRETURN(1); | |
754 | } | |
0c4f7ff0 NIS |
755 | } |
756 | ||
e3f3bf95 NIS |
757 | void |
758 | PerlIO_define_layer(pTHX_ PerlIO_funcs *tab) | |
759 | { | |
3a1ee7e8 NIS |
760 | if (!PL_known_layers) |
761 | PL_known_layers = PerlIO_list_alloc(aTHX); | |
762 | PerlIO_list_push(aTHX_ PL_known_layers, tab, Nullsv); | |
14a5cf38 | 763 | PerlIO_debug("define %s %p\n", tab->name, tab); |
f3862f8b NIS |
764 | } |
765 | ||
1141d9f8 | 766 | int |
fcf2db38 | 767 | PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names) |
1141d9f8 | 768 | { |
14a5cf38 JH |
769 | if (names) { |
770 | const char *s = names; | |
771 | while (*s) { | |
772 | while (isSPACE(*s) || *s == ':') | |
773 | s++; | |
774 | if (*s) { | |
775 | STRLEN llen = 0; | |
776 | const char *e = s; | |
777 | const char *as = Nullch; | |
778 | STRLEN alen = 0; | |
779 | if (!isIDFIRST(*s)) { | |
780 | /* | |
781 | * Message is consistent with how attribute lists are | |
782 | * passed. Even though this means "foo : : bar" is | |
71200d45 | 783 | * seen as an invalid separator character. |
14a5cf38 JH |
784 | */ |
785 | char q = ((*s == '\'') ? '"' : '\''); | |
786 | Perl_warn(aTHX_ | |
1e616cf5 JH |
787 | "perlio: invalid separator character %c%c%c in layer specification list %s", |
788 | q, *s, q, s); | |
14a5cf38 JH |
789 | return -1; |
790 | } | |
791 | do { | |
792 | e++; | |
793 | } while (isALNUM(*e)); | |
794 | llen = e - s; | |
795 | if (*e == '(') { | |
796 | int nesting = 1; | |
797 | as = ++e; | |
798 | while (nesting) { | |
799 | switch (*e++) { | |
800 | case ')': | |
801 | if (--nesting == 0) | |
802 | alen = (e - 1) - as; | |
803 | break; | |
804 | case '(': | |
805 | ++nesting; | |
806 | break; | |
807 | case '\\': | |
808 | /* | |
809 | * It's a nul terminated string, not allowed | |
810 | * to \ the terminating null. Anything other | |
71200d45 | 811 | * character is passed over. |
14a5cf38 JH |
812 | */ |
813 | if (*e++) { | |
814 | break; | |
815 | } | |
816 | /* | |
71200d45 | 817 | * Drop through |
14a5cf38 JH |
818 | */ |
819 | case '\0': | |
820 | e--; | |
821 | Perl_warn(aTHX_ | |
822 | "perlio: argument list not closed for layer \"%.*s\"", | |
823 | (int) (e - s), s); | |
824 | return -1; | |
825 | default: | |
826 | /* | |
71200d45 | 827 | * boring. |
14a5cf38 JH |
828 | */ |
829 | break; | |
830 | } | |
831 | } | |
832 | } | |
833 | if (e > s) { | |
834 | PerlIO_funcs *layer = | |
835 | PerlIO_find_layer(aTHX_ s, llen, 1); | |
836 | if (layer) { | |
3a1ee7e8 | 837 | PerlIO_list_push(aTHX_ av, layer, |
14a5cf38 JH |
838 | (as) ? newSVpvn(as, |
839 | alen) : | |
840 | &PL_sv_undef); | |
841 | } | |
842 | else { | |
843 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"", | |
844 | (int) llen, s); | |
845 | return -1; | |
846 | } | |
847 | } | |
848 | s = e; | |
849 | } | |
850 | } | |
851 | } | |
852 | return 0; | |
1141d9f8 NIS |
853 | } |
854 | ||
dfebf958 | 855 | void |
fcf2db38 | 856 | PerlIO_default_buffer(pTHX_ PerlIO_list_t *av) |
dfebf958 | 857 | { |
14a5cf38 JH |
858 | PerlIO_funcs *tab = &PerlIO_perlio; |
859 | if (O_BINARY != O_TEXT) { | |
860 | tab = &PerlIO_crlf; | |
861 | } | |
862 | else { | |
863 | if (PerlIO_stdio.Set_ptrcnt) { | |
864 | tab = &PerlIO_stdio; | |
865 | } | |
dfebf958 | 866 | } |
14a5cf38 | 867 | PerlIO_debug("Pushing %s\n", tab->name); |
3a1ee7e8 | 868 | PerlIO_list_push(aTHX_ av, PerlIO_find_layer(aTHX_ tab->name, 0, 0), |
14a5cf38 | 869 | &PL_sv_undef); |
dfebf958 NIS |
870 | } |
871 | ||
e3f3bf95 | 872 | SV * |
14a5cf38 | 873 | PerlIO_arg_fetch(PerlIO_list_t *av, IV n) |
e3f3bf95 | 874 | { |
14a5cf38 | 875 | return av->array[n].arg; |
e3f3bf95 NIS |
876 | } |
877 | ||
f3862f8b | 878 | PerlIO_funcs * |
14a5cf38 | 879 | PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av, IV n, PerlIO_funcs *def) |
f3862f8b | 880 | { |
14a5cf38 JH |
881 | if (n >= 0 && n < av->cur) { |
882 | PerlIO_debug("Layer %" IVdf " is %s\n", n, | |
883 | av->array[n].funcs->name); | |
884 | return av->array[n].funcs; | |
885 | } | |
886 | if (!def) | |
887 | Perl_croak(aTHX_ "panic: PerlIO layer array corrupt"); | |
888 | return def; | |
e3f3bf95 NIS |
889 | } |
890 | ||
fcf2db38 | 891 | PerlIO_list_t * |
e3f3bf95 NIS |
892 | PerlIO_default_layers(pTHX) |
893 | { | |
3a1ee7e8 | 894 | if (!PL_def_layerlist) { |
14a5cf38 JH |
895 | const char *s = (PL_tainting) ? Nullch : PerlEnv_getenv("PERLIO"); |
896 | PerlIO_funcs *osLayer = &PerlIO_unix; | |
3a1ee7e8 | 897 | PL_def_layerlist = PerlIO_list_alloc(aTHX); |
14a5cf38 | 898 | PerlIO_define_layer(aTHX_ & PerlIO_unix); |
e1caacb4 | 899 | #if defined(WIN32) && !defined(UNDER_CE) |
14a5cf38 | 900 | PerlIO_define_layer(aTHX_ & PerlIO_win32); |
2f8118af | 901 | #if 0 |
14a5cf38 | 902 | osLayer = &PerlIO_win32; |
0c4128ad | 903 | #endif |
2f8118af | 904 | #endif |
14a5cf38 JH |
905 | PerlIO_define_layer(aTHX_ & PerlIO_raw); |
906 | PerlIO_define_layer(aTHX_ & PerlIO_perlio); | |
907 | PerlIO_define_layer(aTHX_ & PerlIO_stdio); | |
908 | PerlIO_define_layer(aTHX_ & PerlIO_crlf); | |
06da4f11 | 909 | #ifdef HAS_MMAP |
14a5cf38 | 910 | PerlIO_define_layer(aTHX_ & PerlIO_mmap); |
06da4f11 | 911 | #endif |
14a5cf38 JH |
912 | PerlIO_define_layer(aTHX_ & PerlIO_utf8); |
913 | PerlIO_define_layer(aTHX_ & PerlIO_byte); | |
3a1ee7e8 | 914 | PerlIO_list_push(aTHX_ PL_def_layerlist, |
14a5cf38 JH |
915 | PerlIO_find_layer(aTHX_ osLayer->name, 0, 0), |
916 | &PL_sv_undef); | |
917 | if (s) { | |
3a1ee7e8 | 918 | PerlIO_parse_layers(aTHX_ PL_def_layerlist, s); |
14a5cf38 JH |
919 | } |
920 | else { | |
3a1ee7e8 | 921 | PerlIO_default_buffer(aTHX_ PL_def_layerlist); |
14a5cf38 | 922 | } |
1141d9f8 | 923 | } |
3a1ee7e8 NIS |
924 | if (PL_def_layerlist->cur < 2) { |
925 | PerlIO_default_buffer(aTHX_ PL_def_layerlist); | |
f3862f8b | 926 | } |
3a1ee7e8 | 927 | return PL_def_layerlist; |
e3f3bf95 NIS |
928 | } |
929 | ||
0c4f7ff0 NIS |
930 | void |
931 | Perl_boot_core_PerlIO(pTHX) | |
932 | { | |
933 | #ifdef USE_ATTRIBUTES_FOR_PERLIO | |
14a5cf38 JH |
934 | newXS("io::MODIFY_SCALAR_ATTRIBUTES", XS_io_MODIFY_SCALAR_ATTRIBUTES, |
935 | __FILE__); | |
0c4f7ff0 | 936 | #endif |
14a5cf38 | 937 | newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__); |
0c4f7ff0 | 938 | } |
e3f3bf95 NIS |
939 | |
940 | PerlIO_funcs * | |
941 | PerlIO_default_layer(pTHX_ I32 n) | |
942 | { | |
14a5cf38 JH |
943 | PerlIO_list_t *av = PerlIO_default_layers(aTHX); |
944 | if (n < 0) | |
945 | n += av->cur; | |
946 | return PerlIO_layer_fetch(aTHX_ av, n, &PerlIO_stdio); | |
f3862f8b NIS |
947 | } |
948 | ||
a999f61b NIS |
949 | #define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1) |
950 | #define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0) | |
60382766 NIS |
951 | |
952 | void | |
1141d9f8 | 953 | PerlIO_stdstreams(pTHX) |
60382766 | 954 | { |
a1ea730d | 955 | if (!PL_perlio) { |
14a5cf38 JH |
956 | PerlIO_allocate(aTHX); |
957 | PerlIO_fdopen(0, "Ir" PERLIO_STDTEXT); | |
958 | PerlIO_fdopen(1, "Iw" PERLIO_STDTEXT); | |
959 | PerlIO_fdopen(2, "Iw" PERLIO_STDTEXT); | |
960 | } | |
60382766 NIS |
961 | } |
962 | ||
963 | PerlIO * | |
14a5cf38 JH |
964 | PerlIO_push(pTHX_ PerlIO *f, PerlIO_funcs *tab, const char *mode, SV *arg) |
965 | { | |
966 | PerlIOl *l = NULL; | |
3a1ee7e8 | 967 | Newc('L',l,tab->size,char,PerlIOl); |
14a5cf38 JH |
968 | if (l) { |
969 | Zero(l, tab->size, char); | |
970 | l->next = *f; | |
971 | l->tab = tab; | |
972 | *f = l; | |
973 | PerlIO_debug("PerlIO_push f=%p %s %s %p\n", f, tab->name, | |
974 | (mode) ? mode : "(Null)", arg); | |
975 | if ((*l->tab->Pushed) (f, mode, arg) != 0) { | |
976 | PerlIO_pop(aTHX_ f); | |
977 | return NULL; | |
978 | } | |
979 | } | |
980 | return f; | |
60382766 NIS |
981 | } |
982 | ||
dfebf958 | 983 | IV |
e3f3bf95 | 984 | PerlIOPop_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 985 | { |
14a5cf38 JH |
986 | dTHX; |
987 | PerlIO_pop(aTHX_ f); | |
988 | if (*f) { | |
989 | PerlIO_flush(f); | |
990 | PerlIO_pop(aTHX_ f); | |
991 | return 0; | |
992 | } | |
993 | return -1; | |
4b803d04 NIS |
994 | } |
995 | ||
996 | IV | |
e3f3bf95 | 997 | PerlIORaw_pushed(PerlIO *f, const char *mode, SV *arg) |
dfebf958 | 998 | { |
14a5cf38 | 999 | /* |
71200d45 | 1000 | * Remove the dummy layer |
14a5cf38 JH |
1001 | */ |
1002 | dTHX; | |
1003 | PerlIO_pop(aTHX_ f); | |
1004 | /* | |
71200d45 | 1005 | * Pop back to bottom layer |
14a5cf38 JH |
1006 | */ |
1007 | if (f && *f) { | |
1008 | PerlIO_flush(f); | |
1009 | while (!(PerlIOBase(f)->tab->kind & PERLIO_K_RAW)) { | |
1010 | if (*PerlIONext(f)) { | |
1011 | PerlIO_pop(aTHX_ f); | |
1012 | } | |
1013 | else { | |
1014 | /* | |
71200d45 | 1015 | * Nothing bellow - push unix on top then remove it |
14a5cf38 JH |
1016 | */ |
1017 | if (PerlIO_push(aTHX_ f, PerlIO_default_btm(), mode, arg)) { | |
1018 | PerlIO_pop(aTHX_ PerlIONext(f)); | |
1019 | } | |
1020 | break; | |
1021 | } | |
1022 | } | |
1023 | PerlIO_debug(":raw f=%p :%s\n", f, PerlIOBase(f)->tab->name); | |
1024 | return 0; | |
1025 | } | |
1026 | return -1; | |
dfebf958 NIS |
1027 | } |
1028 | ||
ac27b0f5 | 1029 | int |
14a5cf38 JH |
1030 | PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode, |
1031 | PerlIO_list_t *layers, IV n) | |
1032 | { | |
1033 | IV max = layers->cur; | |
1034 | int code = 0; | |
1035 | while (n < max) { | |
1036 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n, NULL); | |
1037 | if (tab) { | |
1038 | if (!PerlIO_push(aTHX_ f, tab, mode, PerlIOArg)) { | |
1039 | code = -1; | |
1040 | break; | |
1041 | } | |
1042 | } | |
1043 | n++; | |
1044 | } | |
1045 | return code; | |
e3f3bf95 NIS |
1046 | } |
1047 | ||
1048 | int | |
ac27b0f5 NIS |
1049 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
1050 | { | |
14a5cf38 JH |
1051 | int code = 0; |
1052 | if (names) { | |
3a1ee7e8 | 1053 | PerlIO_list_t *layers = PerlIO_list_alloc(aTHX); |
14a5cf38 JH |
1054 | code = PerlIO_parse_layers(aTHX_ layers, names); |
1055 | if (code == 0) { | |
1056 | code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0); | |
1057 | } | |
3a1ee7e8 | 1058 | PerlIO_list_free(aTHX_ layers); |
ac27b0f5 | 1059 | } |
14a5cf38 | 1060 | return code; |
ac27b0f5 NIS |
1061 | } |
1062 | ||
f3862f8b | 1063 | |
60382766 | 1064 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 1065 | /* |
71200d45 | 1066 | * Given the abstraction above the public API functions |
14a5cf38 | 1067 | */ |
60382766 NIS |
1068 | |
1069 | int | |
f5b9d040 | 1070 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 1071 | { |
14a5cf38 JH |
1072 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
1073 | f, PerlIOBase(f)->tab->name, iotype, mode, | |
1074 | (names) ? names : "(Null)"); | |
ed53a2bb JH |
1075 | /* Can't flush if switching encodings. */ |
1076 | if (!(names && memEQ(names, ":encoding(", 10))) { | |
1077 | PerlIO_flush(f); | |
1078 | if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) { | |
1079 | PerlIO *top = f; | |
1080 | while (*top) { | |
1081 | if (PerlIOBase(top)->tab == &PerlIO_crlf) { | |
1082 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; | |
1083 | break; | |
1084 | } | |
1085 | top = PerlIONext(top); | |
1086 | PerlIO_flush(top); | |
14a5cf38 | 1087 | } |
14a5cf38 JH |
1088 | } |
1089 | } | |
1090 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; | |
f5b9d040 NIS |
1091 | } |
1092 | ||
1093 | #undef PerlIO__close | |
1094 | int | |
1095 | PerlIO__close(PerlIO *f) | |
1096 | { | |
14a5cf38 JH |
1097 | if (f && *f) |
1098 | return (*PerlIOBase(f)->tab->Close) (f); | |
1099 | else { | |
1100 | SETERRNO(EBADF, SS$_IVCHAN); | |
1101 | return -1; | |
1102 | } | |
76ced9ad NIS |
1103 | } |
1104 | ||
b931b1d9 NIS |
1105 | #undef PerlIO_close |
1106 | int | |
1107 | PerlIO_close(PerlIO *f) | |
1108 | { | |
14a5cf38 JH |
1109 | dTHX; |
1110 | int code = -1; | |
1111 | if (f && *f) { | |
1112 | code = (*PerlIOBase(f)->tab->Close) (f); | |
1113 | while (*f) { | |
1114 | PerlIO_pop(aTHX_ f); | |
1115 | } | |
f6c77cf1 | 1116 | } |
14a5cf38 | 1117 | return code; |
b931b1d9 NIS |
1118 | } |
1119 | ||
1120 | #undef PerlIO_fileno | |
1121 | int | |
1122 | PerlIO_fileno(PerlIO *f) | |
1123 | { | |
14a5cf38 JH |
1124 | if (f && *f) |
1125 | return (*PerlIOBase(f)->tab->Fileno) (f); | |
1126 | else { | |
1127 | SETERRNO(EBADF, SS$_IVCHAN); | |
1128 | return -1; | |
1129 | } | |
b931b1d9 NIS |
1130 | } |
1131 | ||
1141d9f8 NIS |
1132 | static const char * |
1133 | PerlIO_context_layers(pTHX_ const char *mode) | |
1134 | { | |
14a5cf38 JH |
1135 | const char *type = NULL; |
1136 | /* | |
71200d45 | 1137 | * Need to supply default layer info from open.pm |
14a5cf38 JH |
1138 | */ |
1139 | if (PL_curcop) { | |
1140 | SV *layers = PL_curcop->cop_io; | |
1141 | if (layers) { | |
1142 | STRLEN len; | |
1143 | type = SvPV(layers, len); | |
1144 | if (type && mode[0] != 'r') { | |
1145 | /* | |
71200d45 | 1146 | * Skip to write part |
14a5cf38 JH |
1147 | */ |
1148 | const char *s = strchr(type, 0); | |
1149 | if (s && (s - type) < len) { | |
1150 | type = s + 1; | |
1151 | } | |
1152 | } | |
1153 | } | |
1154 | } | |
1155 | return type; | |
1141d9f8 NIS |
1156 | } |
1157 | ||
fcf2db38 | 1158 | static PerlIO_funcs * |
2edd7e44 NIS |
1159 | PerlIO_layer_from_ref(pTHX_ SV *sv) |
1160 | { | |
14a5cf38 | 1161 | /* |
71200d45 | 1162 | * For any scalar type load the handler which is bundled with perl |
14a5cf38 JH |
1163 | */ |
1164 | if (SvTYPE(sv) < SVt_PVAV) | |
1165 | return PerlIO_find_layer(aTHX_ "Scalar", 6, 1); | |
1166 | ||
1167 | /* | |
71200d45 | 1168 | * For other types allow if layer is known but don't try and load it |
14a5cf38 JH |
1169 | */ |
1170 | switch (SvTYPE(sv)) { | |
1171 | case SVt_PVAV: | |
1172 | return PerlIO_find_layer(aTHX_ "Array", 5, 0); | |
1173 | case SVt_PVHV: | |
1174 | return PerlIO_find_layer(aTHX_ "Hash", 4, 0); | |
1175 | case SVt_PVCV: | |
1176 | return PerlIO_find_layer(aTHX_ "Code", 4, 0); | |
1177 | case SVt_PVGV: | |
1178 | return PerlIO_find_layer(aTHX_ "Glob", 4, 0); | |
1179 | } | |
1180 | return NULL; | |
2edd7e44 NIS |
1181 | } |
1182 | ||
fcf2db38 | 1183 | PerlIO_list_t * |
14a5cf38 JH |
1184 | PerlIO_resolve_layers(pTHX_ const char *layers, |
1185 | const char *mode, int narg, SV **args) | |
1186 | { | |
1187 | PerlIO_list_t *def = PerlIO_default_layers(aTHX); | |
1188 | int incdef = 1; | |
a1ea730d | 1189 | if (!PL_perlio) |
14a5cf38 JH |
1190 | PerlIO_stdstreams(aTHX); |
1191 | if (narg) { | |
1192 | SV *arg = *args; | |
1193 | /* | |
71200d45 NIS |
1194 | * If it is a reference but not an object see if we have a handler |
1195 | * for it | |
14a5cf38 JH |
1196 | */ |
1197 | if (SvROK(arg) && !sv_isobject(arg)) { | |
1198 | PerlIO_funcs *handler = PerlIO_layer_from_ref(aTHX_ SvRV(arg)); | |
1199 | if (handler) { | |
3a1ee7e8 NIS |
1200 | def = PerlIO_list_alloc(aTHX); |
1201 | PerlIO_list_push(aTHX_ def, handler, &PL_sv_undef); | |
14a5cf38 JH |
1202 | incdef = 0; |
1203 | } | |
1204 | /* | |
71200d45 | 1205 | * Don't fail if handler cannot be found :Via(...) etc. may do |
14a5cf38 | 1206 | * something sensible else we will just stringfy and open |
71200d45 | 1207 | * resulting string. |
14a5cf38 JH |
1208 | */ |
1209 | } | |
1210 | } | |
1211 | if (!layers) | |
1212 | layers = PerlIO_context_layers(aTHX_ mode); | |
1213 | if (layers && *layers) { | |
1214 | PerlIO_list_t *av; | |
1215 | if (incdef) { | |
1216 | IV i = def->cur; | |
3a1ee7e8 | 1217 | av = PerlIO_list_alloc(aTHX); |
14a5cf38 | 1218 | for (i = 0; i < def->cur; i++) { |
3a1ee7e8 | 1219 | PerlIO_list_push(aTHX_ av, def->array[i].funcs, |
14a5cf38 JH |
1220 | def->array[i].arg); |
1221 | } | |
1222 | } | |
1223 | else { | |
1224 | av = def; | |
1225 | } | |
1226 | PerlIO_parse_layers(aTHX_ av, layers); | |
1227 | return av; | |
1228 | } | |
1229 | else { | |
1230 | if (incdef) | |
1231 | def->refcnt++; | |
1232 | return def; | |
1233 | } | |
ee518936 NIS |
1234 | } |
1235 | ||
1236 | PerlIO * | |
14a5cf38 JH |
1237 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, |
1238 | int imode, int perm, PerlIO *f, int narg, SV **args) | |
1239 | { | |
1240 | if (!f && narg == 1 && *args == &PL_sv_undef) { | |
1241 | if ((f = PerlIO_tmpfile())) { | |
1242 | if (!layers) | |
1243 | layers = PerlIO_context_layers(aTHX_ mode); | |
1244 | if (layers && *layers) | |
1245 | PerlIO_apply_layers(aTHX_ f, mode, layers); | |
1246 | } | |
1247 | } | |
1248 | else { | |
1249 | PerlIO_list_t *layera = NULL; | |
1250 | IV n; | |
1251 | PerlIO_funcs *tab = NULL; | |
1252 | if (f && *f) { | |
1253 | /* | |
71200d45 NIS |
1254 | * This is "reopen" - it is not tested as perl does not use it |
1255 | * yet | |
14a5cf38 JH |
1256 | */ |
1257 | PerlIOl *l = *f; | |
3a1ee7e8 | 1258 | layera = PerlIO_list_alloc(aTHX); |
14a5cf38 JH |
1259 | while (l) { |
1260 | SV *arg = | |
1261 | (l->tab->Getarg) ? (*l->tab-> | |
ecdeb87c | 1262 | Getarg) (aTHX_ &l, NULL, 0) : &PL_sv_undef; |
3a1ee7e8 | 1263 | PerlIO_list_push(aTHX_ layera, l->tab, arg); |
14a5cf38 JH |
1264 | l = *PerlIONext(&l); |
1265 | } | |
1266 | } | |
1267 | else { | |
1268 | layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args); | |
1269 | } | |
1270 | /* | |
71200d45 | 1271 | * Start at "top" of layer stack |
14a5cf38 JH |
1272 | */ |
1273 | n = layera->cur - 1; | |
1274 | while (n >= 0) { | |
1275 | PerlIO_funcs *t = PerlIO_layer_fetch(aTHX_ layera, n, NULL); | |
1276 | if (t && t->Open) { | |
1277 | tab = t; | |
1278 | break; | |
1279 | } | |
1280 | n--; | |
1281 | } | |
1282 | if (tab) { | |
1283 | /* | |
71200d45 | 1284 | * Found that layer 'n' can do opens - call it |
14a5cf38 JH |
1285 | */ |
1286 | PerlIO_debug("openn(%s,'%s','%s',%d,%x,%o,%p,%d,%p)\n", | |
1287 | tab->name, layers, mode, fd, imode, perm, f, narg, | |
1288 | args); | |
1289 | f = (*tab->Open) (aTHX_ tab, layera, n, mode, fd, imode, perm, | |
1290 | f, narg, args); | |
1291 | if (f) { | |
1292 | if (n + 1 < layera->cur) { | |
1293 | /* | |
1294 | * More layers above the one that we used to open - | |
71200d45 | 1295 | * apply them now |
14a5cf38 JH |
1296 | */ |
1297 | if (PerlIO_apply_layera(aTHX_ f, mode, layera, n + 1) | |
1298 | != 0) { | |
1299 | f = NULL; | |
1300 | } | |
1301 | } | |
1302 | } | |
1303 | } | |
3a1ee7e8 | 1304 | PerlIO_list_free(aTHX_ layera); |
14a5cf38 JH |
1305 | } |
1306 | return f; | |
ee518936 | 1307 | } |
b931b1d9 NIS |
1308 | |
1309 | ||
9e353e3b NIS |
1310 | #undef PerlIO_fdopen |
1311 | PerlIO * | |
1312 | PerlIO_fdopen(int fd, const char *mode) | |
1313 | { | |
14a5cf38 JH |
1314 | dTHX; |
1315 | return PerlIO_openn(aTHX_ Nullch, mode, fd, 0, 0, NULL, 0, NULL); | |
9e353e3b NIS |
1316 | } |
1317 | ||
6f9d8c32 NIS |
1318 | #undef PerlIO_open |
1319 | PerlIO * | |
1320 | PerlIO_open(const char *path, const char *mode) | |
1321 | { | |
14a5cf38 JH |
1322 | dTHX; |
1323 | SV *name = sv_2mortal(newSVpvn(path, strlen(path))); | |
1324 | return PerlIO_openn(aTHX_ Nullch, mode, -1, 0, 0, NULL, 1, &name); | |
6f9d8c32 NIS |
1325 | } |
1326 | ||
9e353e3b NIS |
1327 | #undef PerlIO_reopen |
1328 | PerlIO * | |
1329 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 1330 | { |
14a5cf38 JH |
1331 | dTHX; |
1332 | SV *name = sv_2mortal(newSVpvn(path, strlen(path))); | |
1333 | return PerlIO_openn(aTHX_ Nullch, mode, -1, 0, 0, f, 1, &name); | |
760ac839 LW |
1334 | } |
1335 | ||
9e353e3b NIS |
1336 | #undef PerlIO_read |
1337 | SSize_t | |
1338 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 1339 | { |
14a5cf38 JH |
1340 | if (f && *f) |
1341 | return (*PerlIOBase(f)->tab->Read) (f, vbuf, count); | |
1342 | else { | |
1343 | SETERRNO(EBADF, SS$_IVCHAN); | |
1344 | return -1; | |
1345 | } | |
760ac839 LW |
1346 | } |
1347 | ||
313ca112 NIS |
1348 | #undef PerlIO_unread |
1349 | SSize_t | |
1350 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1351 | { |
14a5cf38 JH |
1352 | if (f && *f) |
1353 | return (*PerlIOBase(f)->tab->Unread) (f, vbuf, count); | |
1354 | else { | |
1355 | SETERRNO(EBADF, SS$_IVCHAN); | |
1356 | return -1; | |
1357 | } | |
760ac839 LW |
1358 | } |
1359 | ||
9e353e3b NIS |
1360 | #undef PerlIO_write |
1361 | SSize_t | |
1362 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1363 | { |
14a5cf38 JH |
1364 | if (f && *f) |
1365 | return (*PerlIOBase(f)->tab->Write) (f, vbuf, count); | |
1366 | else { | |
1367 | SETERRNO(EBADF, SS$_IVCHAN); | |
1368 | return -1; | |
1369 | } | |
760ac839 LW |
1370 | } |
1371 | ||
9e353e3b | 1372 | #undef PerlIO_seek |
6f9d8c32 | 1373 | int |
9e353e3b | 1374 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 1375 | { |
14a5cf38 JH |
1376 | if (f && *f) |
1377 | return (*PerlIOBase(f)->tab->Seek) (f, offset, whence); | |
1378 | else { | |
1379 | SETERRNO(EBADF, SS$_IVCHAN); | |
1380 | return -1; | |
1381 | } | |
760ac839 LW |
1382 | } |
1383 | ||
9e353e3b NIS |
1384 | #undef PerlIO_tell |
1385 | Off_t | |
1386 | PerlIO_tell(PerlIO *f) | |
760ac839 | 1387 | { |
14a5cf38 JH |
1388 | if (f && *f) |
1389 | return (*PerlIOBase(f)->tab->Tell) (f); | |
1390 | else { | |
1391 | SETERRNO(EBADF, SS$_IVCHAN); | |
1392 | return -1; | |
1393 | } | |
760ac839 LW |
1394 | } |
1395 | ||
9e353e3b | 1396 | #undef PerlIO_flush |
6f9d8c32 | 1397 | int |
9e353e3b | 1398 | PerlIO_flush(PerlIO *f) |
760ac839 | 1399 | { |
14a5cf38 JH |
1400 | if (f) { |
1401 | if (*f) { | |
1402 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1403 | if (tab && tab->Flush) { | |
1404 | return (*tab->Flush) (f); | |
1405 | } | |
1406 | else { | |
1407 | PerlIO_debug("Cannot flush f=%p :%s\n", f, tab->name); | |
1408 | SETERRNO(EBADF, SS$_IVCHAN); | |
1409 | return -1; | |
1410 | } | |
1411 | } | |
1412 | else { | |
1413 | PerlIO_debug("Cannot flush f=%p\n", f); | |
1414 | SETERRNO(EBADF, SS$_IVCHAN); | |
1415 | return -1; | |
1416 | } | |
1417 | } | |
1418 | else { | |
1419 | /* | |
1420 | * Is it good API design to do flush-all on NULL, a potentially | |
1421 | * errorneous input? Maybe some magical value (PerlIO* | |
1422 | * PERLIO_FLUSH_ALL = (PerlIO*)-1;)? Yes, stdio does similar | |
1423 | * things on fflush(NULL), but should we be bound by their design | |
71200d45 | 1424 | * decisions? --jhi |
14a5cf38 | 1425 | */ |
a1ea730d NIS |
1426 | dTHX; |
1427 | PerlIO **table = &PL_perlio; | |
14a5cf38 JH |
1428 | int code = 0; |
1429 | while ((f = *table)) { | |
1430 | int i; | |
1431 | table = (PerlIO **) (f++); | |
1432 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
1433 | if (*f && PerlIO_flush(f) != 0) | |
1434 | code = -1; | |
1435 | f++; | |
1436 | } | |
1437 | } | |
1438 | return code; | |
1439 | } | |
760ac839 LW |
1440 | } |
1441 | ||
a9c883f6 NIS |
1442 | void |
1443 | PerlIOBase_flush_linebuf() | |
1444 | { | |
a1ea730d NIS |
1445 | dTHX; |
1446 | PerlIO **table = &PL_perlio; | |
14a5cf38 JH |
1447 | PerlIO *f; |
1448 | while ((f = *table)) { | |
1449 | int i; | |
1450 | table = (PerlIO **) (f++); | |
1451 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
1452 | if (*f | |
1453 | && (PerlIOBase(f)-> | |
1454 | flags & (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE)) | |
1455 | == (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE)) | |
1456 | PerlIO_flush(f); | |
1457 | f++; | |
1458 | } | |
a9c883f6 | 1459 | } |
a9c883f6 NIS |
1460 | } |
1461 | ||
06da4f11 NIS |
1462 | #undef PerlIO_fill |
1463 | int | |
1464 | PerlIO_fill(PerlIO *f) | |
1465 | { | |
14a5cf38 JH |
1466 | if (f && *f) |
1467 | return (*PerlIOBase(f)->tab->Fill) (f); | |
1468 | else { | |
1469 | SETERRNO(EBADF, SS$_IVCHAN); | |
1470 | return -1; | |
1471 | } | |
06da4f11 NIS |
1472 | } |
1473 | ||
f3862f8b NIS |
1474 | #undef PerlIO_isutf8 |
1475 | int | |
1476 | PerlIO_isutf8(PerlIO *f) | |
1477 | { | |
14a5cf38 JH |
1478 | if (f && *f) |
1479 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
1480 | else { | |
1481 | SETERRNO(EBADF, SS$_IVCHAN); | |
1482 | return -1; | |
1483 | } | |
f3862f8b NIS |
1484 | } |
1485 | ||
9e353e3b | 1486 | #undef PerlIO_eof |
6f9d8c32 | 1487 | int |
9e353e3b | 1488 | PerlIO_eof(PerlIO *f) |
760ac839 | 1489 | { |
14a5cf38 JH |
1490 | if (f && *f) |
1491 | return (*PerlIOBase(f)->tab->Eof) (f); | |
1492 | else { | |
1493 | SETERRNO(EBADF, SS$_IVCHAN); | |
1494 | return -1; | |
1495 | } | |
9e353e3b NIS |
1496 | } |
1497 | ||
1498 | #undef PerlIO_error | |
1499 | int | |
1500 | PerlIO_error(PerlIO *f) | |
1501 | { | |
14a5cf38 JH |
1502 | if (f && *f) |
1503 | return (*PerlIOBase(f)->tab->Error) (f); | |
1504 | else { | |
1505 | SETERRNO(EBADF, SS$_IVCHAN); | |
1506 | return -1; | |
1507 | } | |
9e353e3b NIS |
1508 | } |
1509 | ||
1510 | #undef PerlIO_clearerr | |
1511 | void | |
1512 | PerlIO_clearerr(PerlIO *f) | |
1513 | { | |
14a5cf38 JH |
1514 | if (f && *f) |
1515 | (*PerlIOBase(f)->tab->Clearerr) (f); | |
1516 | else | |
1517 | SETERRNO(EBADF, SS$_IVCHAN); | |
9e353e3b NIS |
1518 | } |
1519 | ||
1520 | #undef PerlIO_setlinebuf | |
1521 | void | |
1522 | PerlIO_setlinebuf(PerlIO *f) | |
1523 | { | |
14a5cf38 JH |
1524 | if (f && *f) |
1525 | (*PerlIOBase(f)->tab->Setlinebuf) (f); | |
1526 | else | |
1527 | SETERRNO(EBADF, SS$_IVCHAN); | |
9e353e3b NIS |
1528 | } |
1529 | ||
1530 | #undef PerlIO_has_base | |
1531 | int | |
1532 | PerlIO_has_base(PerlIO *f) | |
1533 | { | |
14a5cf38 JH |
1534 | if (f && *f) { |
1535 | return (PerlIOBase(f)->tab->Get_base != NULL); | |
1536 | } | |
1537 | return 0; | |
760ac839 LW |
1538 | } |
1539 | ||
9e353e3b NIS |
1540 | #undef PerlIO_fast_gets |
1541 | int | |
1542 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 1543 | { |
14a5cf38 JH |
1544 | if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) { |
1545 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1546 | return (tab->Set_ptrcnt != NULL); | |
1547 | } | |
1548 | return 0; | |
9e353e3b NIS |
1549 | } |
1550 | ||
1551 | #undef PerlIO_has_cntptr | |
1552 | int | |
1553 | PerlIO_has_cntptr(PerlIO *f) | |
1554 | { | |
14a5cf38 JH |
1555 | if (f && *f) { |
1556 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1557 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
1558 | } | |
1559 | return 0; | |
9e353e3b NIS |
1560 | } |
1561 | ||
1562 | #undef PerlIO_canset_cnt | |
1563 | int | |
1564 | PerlIO_canset_cnt(PerlIO *f) | |
1565 | { | |
14a5cf38 JH |
1566 | if (f && *f) { |
1567 | PerlIOl *l = PerlIOBase(f); | |
1568 | return (l->tab->Set_ptrcnt != NULL); | |
1569 | } | |
1570 | return 0; | |
760ac839 LW |
1571 | } |
1572 | ||
1573 | #undef PerlIO_get_base | |
888911fc | 1574 | STDCHAR * |
a20bf0c3 | 1575 | PerlIO_get_base(PerlIO *f) |
760ac839 | 1576 | { |
14a5cf38 JH |
1577 | if (f && *f) |
1578 | return (*PerlIOBase(f)->tab->Get_base) (f); | |
1579 | return NULL; | |
9e353e3b NIS |
1580 | } |
1581 | ||
1582 | #undef PerlIO_get_bufsiz | |
1583 | int | |
1584 | PerlIO_get_bufsiz(PerlIO *f) | |
1585 | { | |
14a5cf38 JH |
1586 | if (f && *f) |
1587 | return (*PerlIOBase(f)->tab->Get_bufsiz) (f); | |
1588 | return 0; | |
9e353e3b NIS |
1589 | } |
1590 | ||
1591 | #undef PerlIO_get_ptr | |
1592 | STDCHAR * | |
1593 | PerlIO_get_ptr(PerlIO *f) | |
1594 | { | |
14a5cf38 JH |
1595 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1596 | if (tab->Get_ptr == NULL) | |
1597 | return NULL; | |
1598 | return (*tab->Get_ptr) (f); | |
9e353e3b NIS |
1599 | } |
1600 | ||
1601 | #undef PerlIO_get_cnt | |
05d1247b | 1602 | int |
9e353e3b NIS |
1603 | PerlIO_get_cnt(PerlIO *f) |
1604 | { | |
14a5cf38 JH |
1605 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1606 | if (tab->Get_cnt == NULL) | |
1607 | return 0; | |
1608 | return (*tab->Get_cnt) (f); | |
9e353e3b NIS |
1609 | } |
1610 | ||
1611 | #undef PerlIO_set_cnt | |
1612 | void | |
14a5cf38 | 1613 | PerlIO_set_cnt(PerlIO *f, int cnt) |
9e353e3b | 1614 | { |
14a5cf38 | 1615 | (*PerlIOBase(f)->tab->Set_ptrcnt) (f, NULL, cnt); |
9e353e3b NIS |
1616 | } |
1617 | ||
1618 | #undef PerlIO_set_ptrcnt | |
1619 | void | |
14a5cf38 | 1620 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR * ptr, int cnt) |
9e353e3b | 1621 | { |
14a5cf38 JH |
1622 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1623 | if (tab->Set_ptrcnt == NULL) { | |
1624 | dTHX; | |
1625 | Perl_croak(aTHX_ "PerlIO buffer snooping abuse"); | |
1626 | } | |
1627 | (*PerlIOBase(f)->tab->Set_ptrcnt) (f, ptr, cnt); | |
9e353e3b NIS |
1628 | } |
1629 | ||
1630 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 1631 | /* |
71200d45 | 1632 | * utf8 and raw dummy layers |
14a5cf38 | 1633 | */ |
dfebf958 | 1634 | |
26fb694e | 1635 | IV |
e3f3bf95 | 1636 | PerlIOUtf8_pushed(PerlIO *f, const char *mode, SV *arg) |
26fb694e | 1637 | { |
14a5cf38 JH |
1638 | if (PerlIONext(f)) { |
1639 | dTHX; | |
1640 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
1641 | PerlIO_pop(aTHX_ f); | |
1642 | if (tab->kind & PERLIO_K_UTF8) | |
1643 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1644 | else | |
1645 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
1646 | return 0; | |
1647 | } | |
1648 | return -1; | |
26fb694e NIS |
1649 | } |
1650 | ||
dfebf958 | 1651 | PerlIO_funcs PerlIO_utf8 = { |
14a5cf38 JH |
1652 | "utf8", |
1653 | sizeof(PerlIOl), | |
1654 | PERLIO_K_DUMMY | PERLIO_F_UTF8, | |
1655 | PerlIOUtf8_pushed, | |
1656 | NULL, | |
1657 | NULL, | |
1658 | NULL, | |
1659 | NULL, | |
1660 | NULL, | |
1661 | NULL, | |
1662 | NULL, | |
1663 | NULL, | |
1664 | NULL, | |
1665 | NULL, | |
1666 | NULL, /* flush */ | |
1667 | NULL, /* fill */ | |
1668 | NULL, | |
1669 | NULL, | |
1670 | NULL, | |
1671 | NULL, | |
1672 | NULL, /* get_base */ | |
1673 | NULL, /* get_bufsiz */ | |
1674 | NULL, /* get_ptr */ | |
1675 | NULL, /* get_cnt */ | |
1676 | NULL, /* set_ptrcnt */ | |
26fb694e NIS |
1677 | }; |
1678 | ||
1679 | PerlIO_funcs PerlIO_byte = { | |
14a5cf38 JH |
1680 | "bytes", |
1681 | sizeof(PerlIOl), | |
1682 | PERLIO_K_DUMMY, | |
1683 | PerlIOUtf8_pushed, | |
1684 | NULL, | |
1685 | NULL, | |
1686 | NULL, | |
1687 | NULL, | |
1688 | NULL, | |
1689 | NULL, | |
1690 | NULL, | |
1691 | NULL, | |
1692 | NULL, | |
1693 | NULL, | |
1694 | NULL, /* flush */ | |
1695 | NULL, /* fill */ | |
1696 | NULL, | |
1697 | NULL, | |
1698 | NULL, | |
1699 | NULL, | |
1700 | NULL, /* get_base */ | |
1701 | NULL, /* get_bufsiz */ | |
1702 | NULL, /* get_ptr */ | |
1703 | NULL, /* get_cnt */ | |
1704 | NULL, /* set_ptrcnt */ | |
dfebf958 NIS |
1705 | }; |
1706 | ||
1707 | PerlIO * | |
14a5cf38 JH |
1708 | PerlIORaw_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
1709 | IV n, const char *mode, int fd, int imode, int perm, | |
1710 | PerlIO *old, int narg, SV **args) | |
dfebf958 | 1711 | { |
14a5cf38 JH |
1712 | PerlIO_funcs *tab = PerlIO_default_btm(); |
1713 | return (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
1714 | old, narg, args); | |
dfebf958 NIS |
1715 | } |
1716 | ||
1717 | PerlIO_funcs PerlIO_raw = { | |
14a5cf38 JH |
1718 | "raw", |
1719 | sizeof(PerlIOl), | |
1720 | PERLIO_K_DUMMY, | |
1721 | PerlIORaw_pushed, | |
1722 | PerlIOBase_popped, | |
1723 | PerlIORaw_open, | |
1724 | NULL, | |
1725 | NULL, | |
1726 | NULL, | |
1727 | NULL, | |
1728 | NULL, | |
1729 | NULL, | |
1730 | NULL, | |
1731 | NULL, | |
1732 | NULL, /* flush */ | |
1733 | NULL, /* fill */ | |
1734 | NULL, | |
1735 | NULL, | |
1736 | NULL, | |
1737 | NULL, | |
1738 | NULL, /* get_base */ | |
1739 | NULL, /* get_bufsiz */ | |
1740 | NULL, /* get_ptr */ | |
1741 | NULL, /* get_cnt */ | |
1742 | NULL, /* set_ptrcnt */ | |
dfebf958 NIS |
1743 | }; |
1744 | /*--------------------------------------------------------------------------------------*/ | |
1745 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 1746 | /* |
71200d45 | 1747 | * "Methods" of the "base class" |
14a5cf38 | 1748 | */ |
9e353e3b NIS |
1749 | |
1750 | IV | |
1751 | PerlIOBase_fileno(PerlIO *f) | |
1752 | { | |
14a5cf38 | 1753 | return PerlIO_fileno(PerlIONext(f)); |
9e353e3b NIS |
1754 | } |
1755 | ||
f5b9d040 | 1756 | char * |
14a5cf38 JH |
1757 | PerlIO_modestr(PerlIO *f, char *buf) |
1758 | { | |
1759 | char *s = buf; | |
1760 | IV flags = PerlIOBase(f)->flags; | |
1761 | if (flags & PERLIO_F_APPEND) { | |
1762 | *s++ = 'a'; | |
1763 | if (flags & PERLIO_F_CANREAD) { | |
1764 | *s++ = '+'; | |
1765 | } | |
1766 | } | |
1767 | else if (flags & PERLIO_F_CANREAD) { | |
1768 | *s++ = 'r'; | |
1769 | if (flags & PERLIO_F_CANWRITE) | |
1770 | *s++ = '+'; | |
1771 | } | |
1772 | else if (flags & PERLIO_F_CANWRITE) { | |
1773 | *s++ = 'w'; | |
1774 | if (flags & PERLIO_F_CANREAD) { | |
1775 | *s++ = '+'; | |
1776 | } | |
1777 | } | |
5f1a76d0 | 1778 | #if O_TEXT != O_BINARY |
14a5cf38 JH |
1779 | if (!(flags & PERLIO_F_CRLF)) |
1780 | *s++ = 'b'; | |
5f1a76d0 | 1781 | #endif |
14a5cf38 JH |
1782 | *s = '\0'; |
1783 | return buf; | |
f5b9d040 NIS |
1784 | } |
1785 | ||
76ced9ad | 1786 | IV |
e3f3bf95 | 1787 | PerlIOBase_pushed(PerlIO *f, const char *mode, SV *arg) |
9e353e3b | 1788 | { |
14a5cf38 | 1789 | PerlIOl *l = PerlIOBase(f); |
b7953727 | 1790 | #if 0 |
14a5cf38 JH |
1791 | const char *omode = mode; |
1792 | char temp[8]; | |
b7953727 | 1793 | #endif |
14a5cf38 JH |
1794 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1795 | l->flags &= ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE | | |
1796 | PERLIO_F_TRUNCATE | PERLIO_F_APPEND); | |
1797 | if (tab->Set_ptrcnt != NULL) | |
1798 | l->flags |= PERLIO_F_FASTGETS; | |
1799 | if (mode) { | |
1800 | if (*mode == '#' || *mode == 'I') | |
1801 | mode++; | |
1802 | switch (*mode++) { | |
1803 | case 'r': | |
1804 | l->flags |= PERLIO_F_CANREAD; | |
1805 | break; | |
1806 | case 'a': | |
1807 | l->flags |= PERLIO_F_APPEND | PERLIO_F_CANWRITE; | |
1808 | break; | |
1809 | case 'w': | |
1810 | l->flags |= PERLIO_F_TRUNCATE | PERLIO_F_CANWRITE; | |
1811 | break; | |
1812 | default: | |
1813 | SETERRNO(EINVAL, LIB$_INVARG); | |
1814 | return -1; | |
1815 | } | |
1816 | while (*mode) { | |
1817 | switch (*mode++) { | |
1818 | case '+': | |
1819 | l->flags |= PERLIO_F_CANREAD | PERLIO_F_CANWRITE; | |
1820 | break; | |
1821 | case 'b': | |
1822 | l->flags &= ~PERLIO_F_CRLF; | |
1823 | break; | |
1824 | case 't': | |
1825 | l->flags |= PERLIO_F_CRLF; | |
1826 | break; | |
1827 | default: | |
1828 | SETERRNO(EINVAL, LIB$_INVARG); | |
1829 | return -1; | |
1830 | } | |
1831 | } | |
1832 | } | |
1833 | else { | |
1834 | if (l->next) { | |
1835 | l->flags |= l->next->flags & | |
1836 | (PERLIO_F_CANREAD | PERLIO_F_CANWRITE | PERLIO_F_TRUNCATE | | |
1837 | PERLIO_F_APPEND); | |
1838 | } | |
1839 | } | |
5e2ab84b | 1840 | #if 0 |
14a5cf38 JH |
1841 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08" UVxf " (%s)\n", |
1842 | f, PerlIOBase(f)->tab->name, (omode) ? omode : "(Null)", | |
1843 | l->flags, PerlIO_modestr(f, temp)); | |
5e2ab84b | 1844 | #endif |
14a5cf38 | 1845 | return 0; |
76ced9ad NIS |
1846 | } |
1847 | ||
1848 | IV | |
1849 | PerlIOBase_popped(PerlIO *f) | |
1850 | { | |
14a5cf38 | 1851 | return 0; |
760ac839 LW |
1852 | } |
1853 | ||
9e353e3b NIS |
1854 | SSize_t |
1855 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1856 | { | |
14a5cf38 JH |
1857 | dTHX; |
1858 | /* | |
71200d45 | 1859 | * Save the position as current head considers it |
14a5cf38 JH |
1860 | */ |
1861 | Off_t old = PerlIO_tell(f); | |
1862 | SSize_t done; | |
1863 | PerlIO_push(aTHX_ f, &PerlIO_pending, "r", Nullsv); | |
1864 | PerlIOSelf(f, PerlIOBuf)->posn = old; | |
1865 | done = PerlIOBuf_unread(f, vbuf, count); | |
1866 | return done; | |
9e353e3b NIS |
1867 | } |
1868 | ||
f6c77cf1 NIS |
1869 | SSize_t |
1870 | PerlIOBase_read(PerlIO *f, void *vbuf, Size_t count) | |
1871 | { | |
14a5cf38 JH |
1872 | STDCHAR *buf = (STDCHAR *) vbuf; |
1873 | if (f) { | |
1874 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
1875 | return 0; | |
1876 | while (count > 0) { | |
1877 | SSize_t avail = PerlIO_get_cnt(f); | |
1878 | SSize_t take = 0; | |
1879 | if (avail > 0) | |
1880 | take = (count < avail) ? count : avail; | |
1881 | if (take > 0) { | |
1882 | STDCHAR *ptr = PerlIO_get_ptr(f); | |
1883 | Copy(ptr, buf, take, STDCHAR); | |
1884 | PerlIO_set_ptrcnt(f, ptr + take, (avail -= take)); | |
1885 | count -= take; | |
1886 | buf += take; | |
1887 | } | |
1888 | if (count > 0 && avail <= 0) { | |
1889 | if (PerlIO_fill(f) != 0) | |
1890 | break; | |
1891 | } | |
1892 | } | |
1893 | return (buf - (STDCHAR *) vbuf); | |
1894 | } | |
f6c77cf1 | 1895 | return 0; |
f6c77cf1 NIS |
1896 | } |
1897 | ||
9e353e3b | 1898 | IV |
06da4f11 | 1899 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b | 1900 | { |
14a5cf38 | 1901 | return 0; |
9e353e3b NIS |
1902 | } |
1903 | ||
1904 | IV | |
06da4f11 NIS |
1905 | PerlIOBase_noop_fail(PerlIO *f) |
1906 | { | |
14a5cf38 | 1907 | return -1; |
06da4f11 NIS |
1908 | } |
1909 | ||
1910 | IV | |
9e353e3b NIS |
1911 | PerlIOBase_close(PerlIO *f) |
1912 | { | |
14a5cf38 JH |
1913 | IV code = 0; |
1914 | PerlIO *n = PerlIONext(f); | |
1915 | if (PerlIO_flush(f) != 0) | |
1916 | code = -1; | |
1917 | if (n && *n && (*PerlIOBase(n)->tab->Close) (n) != 0) | |
1918 | code = -1; | |
1919 | PerlIOBase(f)->flags &= | |
1920 | ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE | PERLIO_F_OPEN); | |
1921 | return code; | |
9e353e3b NIS |
1922 | } |
1923 | ||
1924 | IV | |
1925 | PerlIOBase_eof(PerlIO *f) | |
1926 | { | |
14a5cf38 JH |
1927 | if (f && *f) { |
1928 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
1929 | } | |
1930 | return 1; | |
9e353e3b NIS |
1931 | } |
1932 | ||
1933 | IV | |
1934 | PerlIOBase_error(PerlIO *f) | |
1935 | { | |
14a5cf38 JH |
1936 | if (f && *f) { |
1937 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
1938 | } | |
1939 | return 1; | |
9e353e3b NIS |
1940 | } |
1941 | ||
1942 | void | |
1943 | PerlIOBase_clearerr(PerlIO *f) | |
1944 | { | |
14a5cf38 JH |
1945 | if (f && *f) { |
1946 | PerlIO *n = PerlIONext(f); | |
1947 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR | PERLIO_F_EOF); | |
1948 | if (n) | |
1949 | PerlIO_clearerr(n); | |
1950 | } | |
9e353e3b NIS |
1951 | } |
1952 | ||
1953 | void | |
1954 | PerlIOBase_setlinebuf(PerlIO *f) | |
1955 | { | |
14a5cf38 JH |
1956 | if (f) { |
1957 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF; | |
1958 | } | |
9e353e3b NIS |
1959 | } |
1960 | ||
93a8090d NIS |
1961 | SV * |
1962 | PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param) | |
1963 | { | |
1964 | if (!arg) | |
1965 | return Nullsv; | |
1966 | #ifdef sv_dup | |
1967 | if (param) { | |
1968 | return sv_dup(arg, param); | |
1969 | } | |
1970 | else { | |
1971 | return newSVsv(arg); | |
1972 | } | |
1973 | #else | |
1974 | return newSVsv(arg); | |
1975 | #endif | |
1976 | } | |
1977 | ||
1978 | PerlIO * | |
ecdeb87c | 1979 | PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
93a8090d NIS |
1980 | { |
1981 | PerlIO *nexto = PerlIONext(o); | |
1982 | if (*nexto) { | |
1983 | PerlIO_funcs *tab = PerlIOBase(nexto)->tab; | |
ecdeb87c | 1984 | f = (*tab->Dup)(aTHX_ f, nexto, param, flags); |
93a8090d NIS |
1985 | } |
1986 | if (f) { | |
1987 | PerlIO_funcs *self = PerlIOBase(o)->tab; | |
1988 | SV *arg = Nullsv; | |
1989 | char buf[8]; | |
1990 | PerlIO_debug("PerlIOBase_dup %s f=%p o=%p param=%p\n",self->name,f,o,param); | |
1991 | if (self->Getarg) { | |
ecdeb87c | 1992 | arg = (*self->Getarg)(aTHX_ o,param,flags); |
93a8090d NIS |
1993 | } |
1994 | f = PerlIO_push(aTHX_ f, self, PerlIO_modestr(o,buf), arg); | |
ecdeb87c | 1995 | if (arg) { |
93a8090d NIS |
1996 | SvREFCNT_dec(arg); |
1997 | } | |
1998 | } | |
1999 | return f; | |
2000 | } | |
2001 | ||
2002 | #define PERLIO_MAX_REFCOUNTABLE_FD 2048 | |
168d5872 | 2003 | #ifdef USE_THREADS |
93a8090d | 2004 | perl_mutex PerlIO_mutex; |
93a8090d | 2005 | #endif |
168d5872 | 2006 | int PerlIO_fd_refcnt[PERLIO_MAX_REFCOUNTABLE_FD]; |
93a8090d NIS |
2007 | |
2008 | void | |
2009 | PerlIO_init(pTHX) | |
2010 | { | |
2011 | /* Place holder for stdstreams call ??? */ | |
168d5872 | 2012 | #ifdef USE_THREADS |
93a8090d NIS |
2013 | MUTEX_INIT(&PerlIO_mutex); |
2014 | #endif | |
2015 | } | |
2016 | ||
168d5872 NIS |
2017 | void |
2018 | PerlIOUnix_refcnt_inc(int fd) | |
2019 | { | |
2020 | if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) { | |
2021 | #ifdef USE_THREADS | |
2022 | MUTEX_LOCK(&PerlIO_mutex); | |
2023 | #endif | |
2024 | PerlIO_fd_refcnt[fd]++; | |
2025 | PerlIO_debug("fd %d refcnt=%d\n",fd,PerlIO_fd_refcnt[fd]); | |
2026 | #ifdef USE_THREADS | |
2027 | MUTEX_UNLOCK(&PerlIO_mutex); | |
2028 | #endif | |
2029 | } | |
2030 | } | |
2031 | ||
168d5872 NIS |
2032 | int |
2033 | PerlIOUnix_refcnt_dec(int fd) | |
2034 | { | |
2035 | int cnt = 0; | |
2036 | if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) { | |
2037 | #ifdef USE_THREADS | |
2038 | MUTEX_LOCK(&PerlIO_mutex); | |
2039 | #endif | |
2040 | cnt = --PerlIO_fd_refcnt[fd]; | |
2041 | PerlIO_debug("fd %d refcnt=%d\n",fd,cnt); | |
2042 | #ifdef USE_THREADS | |
2043 | MUTEX_UNLOCK(&PerlIO_mutex); | |
2044 | #endif | |
2045 | } | |
2046 | return cnt; | |
2047 | } | |
2048 | ||
694c95cf JH |
2049 | void |
2050 | PerlIO_cleanup(pTHX) | |
2051 | { | |
2052 | int i; | |
2053 | #ifdef USE_ITHREADS | |
2054 | PerlIO_debug("Cleanup %p\n",aTHX); | |
2055 | #endif | |
2056 | /* Raise STDIN..STDERR refcount so we don't close them */ | |
2057 | for (i=0; i < 3; i++) | |
2058 | PerlIOUnix_refcnt_inc(i); | |
2059 | PerlIO_cleantable(aTHX_ &PL_perlio); | |
2060 | /* Restore STDIN..STDERR refcount */ | |
2061 | for (i=0; i < 3; i++) | |
2062 | PerlIOUnix_refcnt_dec(i); | |
2063 | } | |
2064 | ||
2065 | ||
2066 | ||
9e353e3b | 2067 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 2068 | /* |
71200d45 | 2069 | * Bottom-most level for UNIX-like case |
14a5cf38 | 2070 | */ |
9e353e3b | 2071 | |
14a5cf38 JH |
2072 | typedef struct { |
2073 | struct _PerlIO base; /* The generic part */ | |
2074 | int fd; /* UNIX like file descriptor */ | |
2075 | int oflags; /* open/fcntl flags */ | |
9e353e3b NIS |
2076 | } PerlIOUnix; |
2077 | ||
6f9d8c32 | 2078 | int |
9e353e3b | 2079 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 2080 | { |
14a5cf38 JH |
2081 | int oflags = -1; |
2082 | if (*mode == 'I' || *mode == '#') | |
2083 | mode++; | |
2084 | switch (*mode) { | |
2085 | case 'r': | |
2086 | oflags = O_RDONLY; | |
2087 | if (*++mode == '+') { | |
2088 | oflags = O_RDWR; | |
2089 | mode++; | |
2090 | } | |
2091 | break; | |
2092 | ||
2093 | case 'w': | |
2094 | oflags = O_CREAT | O_TRUNC; | |
2095 | if (*++mode == '+') { | |
2096 | oflags |= O_RDWR; | |
2097 | mode++; | |
2098 | } | |
2099 | else | |
2100 | oflags |= O_WRONLY; | |
2101 | break; | |
2102 | ||
2103 | case 'a': | |
2104 | oflags = O_CREAT | O_APPEND; | |
2105 | if (*++mode == '+') { | |
2106 | oflags |= O_RDWR; | |
2107 | mode++; | |
2108 | } | |
2109 | else | |
2110 | oflags |= O_WRONLY; | |
2111 | break; | |
2112 | } | |
2113 | if (*mode == 'b') { | |
2114 | oflags |= O_BINARY; | |
2115 | oflags &= ~O_TEXT; | |
2116 | mode++; | |
2117 | } | |
2118 | else if (*mode == 't') { | |
2119 | oflags |= O_TEXT; | |
2120 | oflags &= ~O_BINARY; | |
2121 | mode++; | |
2122 | } | |
2123 | /* | |
71200d45 | 2124 | * Always open in binary mode |
14a5cf38 JH |
2125 | */ |
2126 | oflags |= O_BINARY; | |
2127 | if (*mode || oflags == -1) { | |
2128 | SETERRNO(EINVAL, LIB$_INVARG); | |
2129 | oflags = -1; | |
2130 | } | |
2131 | return oflags; | |
9e353e3b NIS |
2132 | } |
2133 | ||
2134 | IV | |
2135 | PerlIOUnix_fileno(PerlIO *f) | |
2136 | { | |
14a5cf38 | 2137 | return PerlIOSelf(f, PerlIOUnix)->fd; |
9e353e3b NIS |
2138 | } |
2139 | ||
4b803d04 | 2140 | IV |
e3f3bf95 | 2141 | PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 2142 | { |
14a5cf38 | 2143 | IV code = PerlIOBase_pushed(f, mode, arg); |
93a8090d | 2144 | PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix); |
14a5cf38 | 2145 | if (*PerlIONext(f)) { |
14a5cf38 JH |
2146 | s->fd = PerlIO_fileno(PerlIONext(f)); |
2147 | /* | |
71200d45 | 2148 | * XXX could (or should) we retrieve the oflags from the open file |
14a5cf38 | 2149 | * handle rather than believing the "mode" we are passed in? XXX |
71200d45 | 2150 | * Should the value on NULL mode be 0 or -1? |
14a5cf38 JH |
2151 | */ |
2152 | s->oflags = mode ? PerlIOUnix_oflags(mode) : -1; | |
2153 | } | |
2154 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
2155 | return code; | |
4b803d04 NIS |
2156 | } |
2157 | ||
9e353e3b | 2158 | PerlIO * |
14a5cf38 JH |
2159 | PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
2160 | IV n, const char *mode, int fd, int imode, | |
2161 | int perm, PerlIO *f, int narg, SV **args) | |
2162 | { | |
2163 | if (f) { | |
2164 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
2165 | (*PerlIOBase(f)->tab->Close) (f); | |
2166 | } | |
2167 | if (narg > 0) { | |
2168 | char *path = SvPV_nolen(*args); | |
2169 | if (*mode == '#') | |
2170 | mode++; | |
2171 | else { | |
2172 | imode = PerlIOUnix_oflags(mode); | |
2173 | perm = 0666; | |
2174 | } | |
2175 | if (imode != -1) { | |
2176 | fd = PerlLIO_open3(path, imode, perm); | |
2177 | } | |
2178 | } | |
2179 | if (fd >= 0) { | |
2180 | PerlIOUnix *s; | |
2181 | if (*mode == 'I') | |
2182 | mode++; | |
2183 | if (!f) { | |
2184 | f = PerlIO_allocate(aTHX); | |
2185 | s = PerlIOSelf(PerlIO_push(aTHX_ f, self, mode, PerlIOArg), | |
2186 | PerlIOUnix); | |
2187 | } | |
2188 | else | |
2189 | s = PerlIOSelf(f, PerlIOUnix); | |
2190 | s->fd = fd; | |
2191 | s->oflags = imode; | |
2192 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
93a8090d | 2193 | PerlIOUnix_refcnt_inc(fd); |
14a5cf38 JH |
2194 | return f; |
2195 | } | |
2196 | else { | |
2197 | if (f) { | |
2198 | /* | |
71200d45 | 2199 | * FIXME: pop layers ??? |
14a5cf38 JH |
2200 | */ |
2201 | } | |
2202 | return NULL; | |
2203 | } | |
9e353e3b NIS |
2204 | } |
2205 | ||
71200d45 | 2206 | PerlIO * |
ecdeb87c | 2207 | PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 NIS |
2208 | { |
2209 | PerlIOUnix *os = PerlIOSelf(o, PerlIOUnix); | |
93a8090d | 2210 | int fd = os->fd; |
ecdeb87c NIS |
2211 | if (flags & PERLIO_DUP_FD) { |
2212 | fd = PerlLIO_dup(fd); | |
2213 | } | |
93a8090d | 2214 | if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) { |
ecdeb87c | 2215 | f = PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
2216 | if (f) { |
2217 | /* If all went well overwrite fd in dup'ed lay with the dup()'ed fd */ | |
2218 | PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix); | |
2219 | s->fd = fd; | |
93a8090d | 2220 | PerlIOUnix_refcnt_inc(fd); |
71200d45 NIS |
2221 | return f; |
2222 | } | |
71200d45 NIS |
2223 | } |
2224 | return NULL; | |
2225 | } | |
2226 | ||
2227 | ||
9e353e3b NIS |
2228 | SSize_t |
2229 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
2230 | { | |
14a5cf38 JH |
2231 | dTHX; |
2232 | int fd = PerlIOSelf(f, PerlIOUnix)->fd; | |
2233 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) | |
2234 | return 0; | |
2235 | while (1) { | |
2236 | SSize_t len = PerlLIO_read(fd, vbuf, count); | |
2237 | if (len >= 0 || errno != EINTR) { | |
2238 | if (len < 0) | |
2239 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2240 | else if (len == 0 && count != 0) | |
2241 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
2242 | return len; | |
2243 | } | |
2244 | PERL_ASYNC_CHECK(); | |
2245 | } | |
9e353e3b NIS |
2246 | } |
2247 | ||
2248 | SSize_t | |
2249 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
2250 | { | |
14a5cf38 JH |
2251 | dTHX; |
2252 | int fd = PerlIOSelf(f, PerlIOUnix)->fd; | |
2253 | while (1) { | |
2254 | SSize_t len = PerlLIO_write(fd, vbuf, count); | |
2255 | if (len >= 0 || errno != EINTR) { | |
2256 | if (len < 0) | |
2257 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2258 | return len; | |
2259 | } | |
2260 | PERL_ASYNC_CHECK(); | |
06da4f11 | 2261 | } |
9e353e3b NIS |
2262 | } |
2263 | ||
2264 | IV | |
2265 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
2266 | { | |
14a5cf38 JH |
2267 | dSYS; |
2268 | Off_t new = | |
2269 | PerlLIO_lseek(PerlIOSelf(f, PerlIOUnix)->fd, offset, whence); | |
2270 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
2271 | return (new == (Off_t) - 1) ? -1 : 0; | |
9e353e3b NIS |
2272 | } |
2273 | ||
2274 | Off_t | |
2275 | PerlIOUnix_tell(PerlIO *f) | |
2276 | { | |
14a5cf38 JH |
2277 | dSYS; |
2278 | return PerlLIO_lseek(PerlIOSelf(f, PerlIOUnix)->fd, 0, SEEK_CUR); | |
9e353e3b NIS |
2279 | } |
2280 | ||
71200d45 | 2281 | |
9e353e3b NIS |
2282 | IV |
2283 | PerlIOUnix_close(PerlIO *f) | |
2284 | { | |
14a5cf38 JH |
2285 | dTHX; |
2286 | int fd = PerlIOSelf(f, PerlIOUnix)->fd; | |
2287 | int code = 0; | |
168d5872 NIS |
2288 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) { |
2289 | if (PerlIOUnix_refcnt_dec(fd) > 0) { | |
93a8090d NIS |
2290 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
2291 | return 0; | |
2292 | } | |
93a8090d NIS |
2293 | } |
2294 | else { | |
2295 | SETERRNO(EBADF,SS$_IVCHAN); | |
2296 | return -1; | |
2297 | } | |
14a5cf38 JH |
2298 | while (PerlLIO_close(fd) != 0) { |
2299 | if (errno != EINTR) { | |
2300 | code = -1; | |
2301 | break; | |
2302 | } | |
2303 | PERL_ASYNC_CHECK(); | |
2304 | } | |
2305 | if (code == 0) { | |
2306 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
2307 | } | |
2308 | return code; | |
9e353e3b NIS |
2309 | } |
2310 | ||
2311 | PerlIO_funcs PerlIO_unix = { | |
14a5cf38 JH |
2312 | "unix", |
2313 | sizeof(PerlIOUnix), | |
2314 | PERLIO_K_RAW, | |
2315 | PerlIOUnix_pushed, | |
2316 | PerlIOBase_noop_ok, | |
2317 | PerlIOUnix_open, | |
2318 | NULL, | |
2319 | PerlIOUnix_fileno, | |
71200d45 | 2320 | PerlIOUnix_dup, |
14a5cf38 JH |
2321 | PerlIOUnix_read, |
2322 | PerlIOBase_unread, | |
2323 | PerlIOUnix_write, | |
2324 | PerlIOUnix_seek, | |
2325 | PerlIOUnix_tell, | |
2326 | PerlIOUnix_close, | |
2327 | PerlIOBase_noop_ok, /* flush */ | |
2328 | PerlIOBase_noop_fail, /* fill */ | |
2329 | PerlIOBase_eof, | |
2330 | PerlIOBase_error, | |
2331 | PerlIOBase_clearerr, | |
2332 | PerlIOBase_setlinebuf, | |
2333 | NULL, /* get_base */ | |
2334 | NULL, /* get_bufsiz */ | |
2335 | NULL, /* get_ptr */ | |
2336 | NULL, /* get_cnt */ | |
2337 | NULL, /* set_ptrcnt */ | |
9e353e3b NIS |
2338 | }; |
2339 | ||
2340 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 2341 | /* |
71200d45 | 2342 | * stdio as a layer |
14a5cf38 | 2343 | */ |
9e353e3b | 2344 | |
14a5cf38 JH |
2345 | typedef struct { |
2346 | struct _PerlIO base; | |
2347 | FILE *stdio; /* The stream */ | |
9e353e3b NIS |
2348 | } PerlIOStdio; |
2349 | ||
2350 | IV | |
2351 | PerlIOStdio_fileno(PerlIO *f) | |
2352 | { | |
14a5cf38 JH |
2353 | dSYS; |
2354 | return PerlSIO_fileno(PerlIOSelf(f, PerlIOStdio)->stdio); | |
9e353e3b NIS |
2355 | } |
2356 | ||
766a733e | 2357 | char * |
14a5cf38 JH |
2358 | PerlIOStdio_mode(const char *mode, char *tmode) |
2359 | { | |
2360 | char *ret = tmode; | |
2361 | while (*mode) { | |
2362 | *tmode++ = *mode++; | |
2363 | } | |
2364 | if (O_BINARY != O_TEXT) { | |
2365 | *tmode++ = 'b'; | |
2366 | } | |
2367 | *tmode = '\0'; | |
2368 | return ret; | |
2369 | } | |
2370 | ||
2371 | /* | |
71200d45 | 2372 | * This isn't used yet ... |
14a5cf38 | 2373 | */ |
4b803d04 | 2374 | IV |
e3f3bf95 | 2375 | PerlIOStdio_pushed(PerlIO *f, const char *mode, SV *arg) |
4b803d04 | 2376 | { |
14a5cf38 JH |
2377 | if (*PerlIONext(f)) { |
2378 | dSYS; | |
2379 | PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio); | |
2380 | char tmode[8]; | |
2381 | FILE *stdio = | |
2382 | PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)), mode = | |
2383 | PerlIOStdio_mode(mode, tmode)); | |
2384 | if (stdio) | |
2385 | s->stdio = stdio; | |
2386 | else | |
2387 | return -1; | |
2388 | } | |
2389 | return PerlIOBase_pushed(f, mode, arg); | |
4b803d04 NIS |
2390 | } |
2391 | ||
9e353e3b NIS |
2392 | #undef PerlIO_importFILE |
2393 | PerlIO * | |
2394 | PerlIO_importFILE(FILE *stdio, int fl) | |
2395 | { | |
14a5cf38 JH |
2396 | dTHX; |
2397 | PerlIO *f = NULL; | |
2398 | if (stdio) { | |
2399 | PerlIOStdio *s = | |
2400 | PerlIOSelf(PerlIO_push | |
2401 | (aTHX_(f = PerlIO_allocate(aTHX)), &PerlIO_stdio, | |
2402 | "r+", Nullsv), PerlIOStdio); | |
2403 | s->stdio = stdio; | |
2404 | } | |
2405 | return f; | |
9e353e3b NIS |
2406 | } |
2407 | ||
2408 | PerlIO * | |
14a5cf38 JH |
2409 | PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
2410 | IV n, const char *mode, int fd, int imode, | |
2411 | int perm, PerlIO *f, int narg, SV **args) | |
2412 | { | |
2413 | char tmode[8]; | |
2414 | if (f) { | |
2415 | char *path = SvPV_nolen(*args); | |
2416 | PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio); | |
1751d015 NIS |
2417 | FILE *stdio; |
2418 | PerlIOUnix_refcnt_dec(fileno(s->stdio)); | |
2419 | stdio = PerlSIO_freopen(path, (mode = PerlIOStdio_mode(mode, tmode)), | |
14a5cf38 JH |
2420 | s->stdio); |
2421 | if (!s->stdio) | |
2422 | return NULL; | |
2423 | s->stdio = stdio; | |
1751d015 | 2424 | PerlIOUnix_refcnt_inc(fileno(s->stdio)); |
14a5cf38 JH |
2425 | return f; |
2426 | } | |
2427 | else { | |
2428 | if (narg > 0) { | |
2429 | char *path = SvPV_nolen(*args); | |
2430 | if (*mode == '#') { | |
2431 | mode++; | |
2432 | fd = PerlLIO_open3(path, imode, perm); | |
2433 | } | |
2434 | else { | |
2435 | FILE *stdio = PerlSIO_fopen(path, mode); | |
2436 | if (stdio) { | |
2437 | PerlIOStdio *s = | |
2438 | PerlIOSelf(PerlIO_push | |
2439 | (aTHX_(f = PerlIO_allocate(aTHX)), self, | |
2440 | (mode = PerlIOStdio_mode(mode, tmode)), | |
2441 | PerlIOArg), | |
2442 | PerlIOStdio); | |
2443 | s->stdio = stdio; | |
1751d015 | 2444 | PerlIOUnix_refcnt_inc(fileno(s->stdio)); |
14a5cf38 JH |
2445 | } |
2446 | return f; | |
2447 | } | |
2448 | } | |
2449 | if (fd >= 0) { | |
2450 | FILE *stdio = NULL; | |
2451 | int init = 0; | |
2452 | if (*mode == 'I') { | |
2453 | init = 1; | |
2454 | mode++; | |
2455 | } | |
2456 | if (init) { | |
2457 | switch (fd) { | |
2458 | case 0: | |
2459 | stdio = PerlSIO_stdin; | |
2460 | break; | |
2461 | case 1: | |
2462 | stdio = PerlSIO_stdout; | |
2463 | break; | |
2464 | case 2: | |
2465 | stdio = PerlSIO_stderr; | |
2466 | break; | |
2467 | } | |
2468 | } | |
2469 | else { | |
2470 | stdio = PerlSIO_fdopen(fd, mode = | |
2471 | PerlIOStdio_mode(mode, tmode)); | |
2472 | } | |
2473 | if (stdio) { | |
2474 | PerlIOStdio *s = | |
2475 | PerlIOSelf(PerlIO_push | |
2476 | (aTHX_(f = PerlIO_allocate(aTHX)), self, | |
2477 | mode, PerlIOArg), PerlIOStdio); | |
2478 | s->stdio = stdio; | |
1751d015 | 2479 | PerlIOUnix_refcnt_inc(fileno(s->stdio)); |
14a5cf38 JH |
2480 | return f; |
2481 | } | |
2482 | } | |
2483 | } | |
ee518936 | 2484 | return NULL; |
9e353e3b NIS |
2485 | } |
2486 | ||
1751d015 | 2487 | PerlIO * |
ecdeb87c | 2488 | PerlIOStdio_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
1751d015 NIS |
2489 | { |
2490 | /* This assumes no layers underneath - which is what | |
2491 | happens, but is not how I remember it. NI-S 2001/10/16 | |
2492 | */ | |
ecdeb87c | 2493 | if ((f = PerlIOBase_dup(aTHX_ f, o, param, flags))) { |
694c95cf | 2494 | FILE *stdio = PerlIOSelf(o, PerlIOStdio)->stdio; |
ecdeb87c NIS |
2495 | if (flags & PERLIO_DUP_FD) { |
2496 | int fd = PerlLIO_dup(fileno(stdio)); | |
2497 | if (fd >= 0) { | |
2498 | char mode[8]; | |
293ed4d2 | 2499 | stdio = fdopen(fd, PerlIO_modestr(o,mode)); |
ecdeb87c NIS |
2500 | } |
2501 | else { | |
2502 | /* FIXME: To avoid messy error recovery if dup fails | |
2503 | re-use the existing stdio as though flag was not set | |
2504 | */ | |
2505 | } | |
2506 | } | |
694c95cf JH |
2507 | PerlIOSelf(f, PerlIOStdio)->stdio = stdio; |
2508 | PerlIOUnix_refcnt_inc(fileno(stdio)); | |
1751d015 NIS |
2509 | } |
2510 | return f; | |
2511 | } | |
2512 | ||
2513 | IV | |
2514 | PerlIOStdio_close(PerlIO *f) | |
2515 | { | |
2516 | dSYS; | |
2517 | #ifdef SOCKS5_VERSION_NAME | |
2518 | int optval; | |
2519 | Sock_size_t optlen = sizeof(int); | |
2520 | #endif | |
2521 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2522 | if (PerlIOUnix_refcnt_dec(fileno(stdio)) > 0) { | |
694c95cf JH |
2523 | /* Do not close it but do flush any buffers */ |
2524 | PerlIO_flush(f); | |
1751d015 NIS |
2525 | return 0; |
2526 | } | |
2527 | return ( | |
2528 | #ifdef SOCKS5_VERSION_NAME | |
2529 | (getsockopt | |
2530 | (PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (void *) &optval, | |
2531 | &optlen) < | |
2532 | 0) ? PerlSIO_fclose(stdio) : close(PerlIO_fileno(f)) | |
2533 | #else | |
2534 | PerlSIO_fclose(stdio) | |
2535 | #endif | |
2536 | ); | |
2537 | ||
2538 | } | |
2539 | ||
2540 | ||
2541 | ||
9e353e3b NIS |
2542 | SSize_t |
2543 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
2544 | { | |
14a5cf38 JH |
2545 | dSYS; |
2546 | FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2547 | SSize_t got = 0; | |
2548 | if (count == 1) { | |
2549 | STDCHAR *buf = (STDCHAR *) vbuf; | |
2550 | /* | |
2551 | * Perl is expecting PerlIO_getc() to fill the buffer Linux's | |
71200d45 | 2552 | * stdio does not do that for fread() |
14a5cf38 JH |
2553 | */ |
2554 | int ch = PerlSIO_fgetc(s); | |
2555 | if (ch != EOF) { | |
2556 | *buf = ch; | |
2557 | got = 1; | |
2558 | } | |
2559 | } | |
2560 | else | |
2561 | got = PerlSIO_fread(vbuf, 1, count, s); | |
2562 | return got; | |
9e353e3b NIS |
2563 | } |
2564 | ||
2565 | SSize_t | |
2566 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
2567 | { | |
14a5cf38 JH |
2568 | dSYS; |
2569 | FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2570 | STDCHAR *buf = ((STDCHAR *) vbuf) + count - 1; | |
2571 | SSize_t unread = 0; | |
2572 | while (count > 0) { | |
2573 | int ch = *buf-- & 0xff; | |
2574 | if (PerlSIO_ungetc(ch, s) != ch) | |
2575 | break; | |
2576 | unread++; | |
2577 | count--; | |
2578 | } | |
2579 | return unread; | |
9e353e3b NIS |
2580 | } |
2581 | ||
2582 | SSize_t | |
2583 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
2584 | { | |
14a5cf38 JH |
2585 | dSYS; |
2586 | return PerlSIO_fwrite(vbuf, 1, count, | |
2587 | PerlIOSelf(f, PerlIOStdio)->stdio); | |
9e353e3b NIS |
2588 | } |
2589 | ||
2590 | IV | |
2591 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
2592 | { | |
14a5cf38 JH |
2593 | dSYS; |
2594 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2595 | return PerlSIO_fseek(stdio, offset, whence); | |
9e353e3b NIS |
2596 | } |
2597 | ||
2598 | Off_t | |
2599 | PerlIOStdio_tell(PerlIO *f) | |
2600 | { | |
14a5cf38 JH |
2601 | dSYS; |
2602 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2603 | return PerlSIO_ftell(stdio); | |
9e353e3b NIS |
2604 | } |
2605 | ||
2606 | IV | |
9e353e3b NIS |
2607 | PerlIOStdio_flush(PerlIO *f) |
2608 | { | |
14a5cf38 JH |
2609 | dSYS; |
2610 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2611 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) { | |
2612 | return PerlSIO_fflush(stdio); | |
2613 | } | |
2614 | else { | |
88b61e10 | 2615 | #if 0 |
14a5cf38 JH |
2616 | /* |
2617 | * FIXME: This discards ungetc() and pre-read stuff which is not | |
71200d45 | 2618 | * right if this is just a "sync" from a layer above Suspect right |
14a5cf38 | 2619 | * design is to do _this_ but not have layer above flush this |
71200d45 | 2620 | * layer read-to-read |
14a5cf38 JH |
2621 | */ |
2622 | /* | |
71200d45 | 2623 | * Not writeable - sync by attempting a seek |
14a5cf38 JH |
2624 | */ |
2625 | int err = errno; | |
2626 | if (PerlSIO_fseek(stdio, (Off_t) 0, SEEK_CUR) != 0) | |
2627 | errno = err; | |
88b61e10 | 2628 | #endif |
14a5cf38 JH |
2629 | } |
2630 | return 0; | |
9e353e3b NIS |
2631 | } |
2632 | ||
2633 | IV | |
06da4f11 NIS |
2634 | PerlIOStdio_fill(PerlIO *f) |
2635 | { | |
14a5cf38 JH |
2636 | dSYS; |
2637 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2638 | int c; | |
2639 | /* | |
71200d45 | 2640 | * fflush()ing read-only streams can cause trouble on some stdio-s |
14a5cf38 JH |
2641 | */ |
2642 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) { | |
2643 | if (PerlSIO_fflush(stdio) != 0) | |
2644 | return EOF; | |
2645 | } | |
2646 | c = PerlSIO_fgetc(stdio); | |
2647 | if (c == EOF || PerlSIO_ungetc(c, stdio) != c) | |
2648 | return EOF; | |
2649 | return 0; | |
06da4f11 NIS |
2650 | } |
2651 | ||
2652 | IV | |
9e353e3b NIS |
2653 | PerlIOStdio_eof(PerlIO *f) |
2654 | { | |
14a5cf38 JH |
2655 | dSYS; |
2656 | return PerlSIO_feof(PerlIOSelf(f, PerlIOStdio)->stdio); | |
9e353e3b NIS |
2657 | } |
2658 | ||
2659 | IV | |
2660 | PerlIOStdio_error(PerlIO *f) | |
2661 | { | |
14a5cf38 JH |
2662 | dSYS; |
2663 | return PerlSIO_ferror(PerlIOSelf(f, PerlIOStdio)->stdio); | |
9e353e3b NIS |
2664 | } |
2665 | ||
2666 | void | |
2667 | PerlIOStdio_clearerr(PerlIO *f) | |
2668 | { | |
14a5cf38 JH |
2669 | dSYS; |
2670 | PerlSIO_clearerr(PerlIOSelf(f, PerlIOStdio)->stdio); | |
9e353e3b NIS |
2671 | } |
2672 | ||
2673 | void | |
2674 | PerlIOStdio_setlinebuf(PerlIO *f) | |
2675 | { | |
14a5cf38 | 2676 | dSYS; |
9e353e3b | 2677 | #ifdef HAS_SETLINEBUF |
14a5cf38 | 2678 | PerlSIO_setlinebuf(PerlIOSelf(f, PerlIOStdio)->stdio); |
9e353e3b | 2679 | #else |
14a5cf38 | 2680 | PerlSIO_setvbuf(PerlIOSelf(f, PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
9e353e3b NIS |
2681 | #endif |
2682 | } | |
2683 | ||
2684 | #ifdef FILE_base | |
2685 | STDCHAR * | |
2686 | PerlIOStdio_get_base(PerlIO *f) | |
2687 | { | |
14a5cf38 JH |
2688 | dSYS; |
2689 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2690 | return PerlSIO_get_base(stdio); | |
9e353e3b NIS |
2691 | } |
2692 | ||
2693 | Size_t | |
2694 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
2695 | { | |
14a5cf38 JH |
2696 | dSYS; |
2697 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2698 | return PerlSIO_get_bufsiz(stdio); | |
9e353e3b NIS |
2699 | } |
2700 | #endif | |
2701 | ||
2702 | #ifdef USE_STDIO_PTR | |
2703 | STDCHAR * | |
2704 | PerlIOStdio_get_ptr(PerlIO *f) | |
2705 | { | |
14a5cf38 JH |
2706 | dSYS; |
2707 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2708 | return PerlSIO_get_ptr(stdio); | |
9e353e3b NIS |
2709 | } |
2710 | ||
2711 | SSize_t | |
2712 | PerlIOStdio_get_cnt(PerlIO *f) | |
2713 | { | |
14a5cf38 JH |
2714 | dSYS; |
2715 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2716 | return PerlSIO_get_cnt(stdio); | |
9e353e3b NIS |
2717 | } |
2718 | ||
2719 | void | |
14a5cf38 | 2720 | PerlIOStdio_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
9e353e3b | 2721 | { |
14a5cf38 JH |
2722 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
2723 | dSYS; | |
2724 | if (ptr != NULL) { | |
9e353e3b | 2725 | #ifdef STDIO_PTR_LVALUE |
14a5cf38 | 2726 | PerlSIO_set_ptr(stdio, ptr); |
9e353e3b | 2727 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
14a5cf38 JH |
2728 | if (PerlSIO_get_cnt(stdio) != (cnt)) { |
2729 | dTHX; | |
2730 | assert(PerlSIO_get_cnt(stdio) == (cnt)); | |
2731 | } | |
9e353e3b NIS |
2732 | #endif |
2733 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
14a5cf38 | 2734 | /* |
71200d45 | 2735 | * Setting ptr _does_ change cnt - we are done |
14a5cf38 JH |
2736 | */ |
2737 | return; | |
9e353e3b | 2738 | #endif |
14a5cf38 JH |
2739 | #else /* STDIO_PTR_LVALUE */ |
2740 | PerlProc_abort(); | |
2741 | #endif /* STDIO_PTR_LVALUE */ | |
2742 | } | |
2743 | /* | |
71200d45 | 2744 | * Now (or only) set cnt |
14a5cf38 | 2745 | */ |
9e353e3b | 2746 | #ifdef STDIO_CNT_LVALUE |
14a5cf38 JH |
2747 | PerlSIO_set_cnt(stdio, cnt); |
2748 | #else /* STDIO_CNT_LVALUE */ | |
9e353e3b | 2749 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) |
14a5cf38 JH |
2750 | PerlSIO_set_ptr(stdio, |
2751 | PerlSIO_get_ptr(stdio) + (PerlSIO_get_cnt(stdio) - | |
2752 | cnt)); | |
2753 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
2754 | PerlProc_abort(); | |
2755 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
2756 | #endif /* STDIO_CNT_LVALUE */ | |
9e353e3b NIS |
2757 | } |
2758 | ||
2759 | #endif | |
2760 | ||
2761 | PerlIO_funcs PerlIO_stdio = { | |
14a5cf38 JH |
2762 | "stdio", |
2763 | sizeof(PerlIOStdio), | |
2764 | PERLIO_K_BUFFERED, | |
2765 | PerlIOBase_pushed, | |
2766 | PerlIOBase_noop_ok, | |
2767 | PerlIOStdio_open, | |
2768 | NULL, | |
2769 | PerlIOStdio_fileno, | |
71200d45 | 2770 | PerlIOStdio_dup, |
14a5cf38 JH |
2771 | PerlIOStdio_read, |
2772 | PerlIOStdio_unread, | |
2773 | PerlIOStdio_write, | |
2774 | PerlIOStdio_seek, | |
2775 | PerlIOStdio_tell, | |
2776 | PerlIOStdio_close, | |
2777 | PerlIOStdio_flush, | |
2778 | PerlIOStdio_fill, | |
2779 | PerlIOStdio_eof, | |
2780 | PerlIOStdio_error, | |
2781 | PerlIOStdio_clearerr, | |
2782 | PerlIOStdio_setlinebuf, | |
9e353e3b | 2783 | #ifdef FILE_base |
14a5cf38 JH |
2784 | PerlIOStdio_get_base, |
2785 | PerlIOStdio_get_bufsiz, | |
9e353e3b | 2786 | #else |
14a5cf38 JH |
2787 | NULL, |
2788 | NULL, | |
9e353e3b NIS |
2789 | #endif |
2790 | #ifdef USE_STDIO_PTR | |
14a5cf38 JH |
2791 | PerlIOStdio_get_ptr, |
2792 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 2793 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
14a5cf38 JH |
2794 | PerlIOStdio_set_ptrcnt |
2795 | #else /* STDIO_PTR_LVALUE */ | |
2796 | NULL | |
2797 | #endif /* STDIO_PTR_LVALUE */ | |
2798 | #else /* USE_STDIO_PTR */ | |
2799 | NULL, | |
2800 | NULL, | |
2801 | NULL | |
2802 | #endif /* USE_STDIO_PTR */ | |
9e353e3b NIS |
2803 | }; |
2804 | ||
2805 | #undef PerlIO_exportFILE | |
2806 | FILE * | |
2807 | PerlIO_exportFILE(PerlIO *f, int fl) | |
2808 | { | |
14a5cf38 JH |
2809 | FILE *stdio; |
2810 | PerlIO_flush(f); | |
2811 | stdio = fdopen(PerlIO_fileno(f), "r+"); | |
2812 | if (stdio) { | |
2813 | dTHX; | |
2814 | PerlIOStdio *s = | |
2815 | PerlIOSelf(PerlIO_push(aTHX_ f, &PerlIO_stdio, "r+", Nullsv), | |
2816 | PerlIOStdio); | |
2817 | s->stdio = stdio; | |
2818 | } | |
2819 | return stdio; | |
9e353e3b NIS |
2820 | } |
2821 | ||
2822 | #undef PerlIO_findFILE | |
2823 | FILE * | |
2824 | PerlIO_findFILE(PerlIO *f) | |
2825 | { | |
14a5cf38 JH |
2826 | PerlIOl *l = *f; |
2827 | while (l) { | |
2828 | if (l->tab == &PerlIO_stdio) { | |
2829 | PerlIOStdio *s = PerlIOSelf(&l, PerlIOStdio); | |
2830 | return s->stdio; | |
2831 | } | |
2832 | l = *PerlIONext(&l); | |
f7e7eb72 | 2833 | } |
14a5cf38 | 2834 | return PerlIO_exportFILE(f, 0); |
9e353e3b NIS |
2835 | } |
2836 | ||
2837 | #undef PerlIO_releaseFILE | |
2838 | void | |
2839 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
2840 | { | |
2841 | } | |
2842 | ||
2843 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 2844 | /* |
71200d45 | 2845 | * perlio buffer layer |
14a5cf38 | 2846 | */ |
9e353e3b | 2847 | |
5e2ab84b | 2848 | IV |
e3f3bf95 | 2849 | PerlIOBuf_pushed(PerlIO *f, const char *mode, SV *arg) |
5e2ab84b | 2850 | { |
14a5cf38 JH |
2851 | dSYS; |
2852 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
2853 | int fd = PerlIO_fileno(f); | |
2854 | Off_t posn; | |
2855 | if (fd >= 0 && PerlLIO_isatty(fd)) { | |
2856 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF | PERLIO_F_TTY; | |
2857 | } | |
2858 | posn = PerlIO_tell(PerlIONext(f)); | |
2859 | if (posn != (Off_t) - 1) { | |
2860 | b->posn = posn; | |
2861 | } | |
2862 | return PerlIOBase_pushed(f, mode, arg); | |
5e2ab84b NIS |
2863 | } |
2864 | ||
9e353e3b | 2865 | PerlIO * |
14a5cf38 JH |
2866 | PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
2867 | IV n, const char *mode, int fd, int imode, int perm, | |
2868 | PerlIO *f, int narg, SV **args) | |
2869 | { | |
2870 | if (f) { | |
2871 | PerlIO *next = PerlIONext(f); | |
2872 | PerlIO_funcs *tab = | |
2873 | PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIOBase(next)->tab); | |
2874 | next = | |
2875 | (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
2876 | next, narg, args); | |
2877 | if (!next | |
2878 | || (*PerlIOBase(f)->tab->Pushed) (f, mode, PerlIOArg) != 0) { | |
2879 | return NULL; | |
2880 | } | |
2881 | } | |
2882 | else { | |
2883 | PerlIO_funcs *tab = | |
2884 | PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIO_default_btm()); | |
2885 | int init = 0; | |
2886 | if (*mode == 'I') { | |
2887 | init = 1; | |
2888 | /* | |
71200d45 | 2889 | * mode++; |
14a5cf38 JH |
2890 | */ |
2891 | } | |
2892 | f = (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
2893 | NULL, narg, args); | |
2894 | if (f) { | |
b26b1ab5 NC |
2895 | if (PerlIO_push(aTHX_ f, self, mode, PerlIOArg) == 0) { |
2896 | /* | |
2897 | * if push fails during open, open fails. close will pop us. | |
2898 | */ | |
2899 | PerlIO_close (f); | |
2900 | return NULL; | |
2901 | } else { | |
2902 | fd = PerlIO_fileno(f); | |
4804698d | 2903 | #if (O_BINARY != O_TEXT) && !defined(__BEOS__) |
14a5cf38 | 2904 | /* |
b26b1ab5 | 2905 | * do something about failing setmode()? --jhi |
14a5cf38 | 2906 | */ |
b26b1ab5 NC |
2907 | PerlLIO_setmode(fd, O_BINARY); |
2908 | #endif | |
2909 | if (init && fd == 2) { | |
2910 | /* | |
2911 | * Initial stderr is unbuffered | |
2912 | */ | |
2913 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
2914 | } | |
14a5cf38 JH |
2915 | } |
2916 | } | |
ee518936 | 2917 | } |
14a5cf38 | 2918 | return f; |
9e353e3b NIS |
2919 | } |
2920 | ||
14a5cf38 JH |
2921 | /* |
2922 | * This "flush" is akin to sfio's sync in that it handles files in either | |
71200d45 | 2923 | * read or write state |
14a5cf38 | 2924 | */ |
9e353e3b NIS |
2925 | IV |
2926 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 2927 | { |
14a5cf38 JH |
2928 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
2929 | int code = 0; | |
2930 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) { | |
2931 | /* | |
71200d45 | 2932 | * write() the buffer |
14a5cf38 JH |
2933 | */ |
2934 | STDCHAR *buf = b->buf; | |
2935 | STDCHAR *p = buf; | |
2936 | PerlIO *n = PerlIONext(f); | |
2937 | while (p < b->ptr) { | |
2938 | SSize_t count = PerlIO_write(n, p, b->ptr - p); | |
2939 | if (count > 0) { | |
2940 | p += count; | |
2941 | } | |
2942 | else if (count < 0 || PerlIO_error(n)) { | |
2943 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2944 | code = -1; | |
2945 | break; | |
2946 | } | |
2947 | } | |
2948 | b->posn += (p - buf); | |
2949 | } | |
2950 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
2951 | STDCHAR *buf = PerlIO_get_base(f); | |
2952 | /* | |
71200d45 | 2953 | * Note position change |
14a5cf38 JH |
2954 | */ |
2955 | b->posn += (b->ptr - buf); | |
2956 | if (b->ptr < b->end) { | |
2957 | /* | |
71200d45 | 2958 | * We did not consume all of it |
14a5cf38 JH |
2959 | */ |
2960 | if (PerlIO_seek(PerlIONext(f), b->posn, SEEK_SET) == 0) { | |
2961 | b->posn = PerlIO_tell(PerlIONext(f)); | |
2962 | } | |
2963 | } | |
2964 | } | |
2965 | b->ptr = b->end = b->buf; | |
2966 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); | |
2967 | /* | |
71200d45 | 2968 | * FIXME: Is this right for read case ? |
14a5cf38 JH |
2969 | */ |
2970 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
2971 | code = -1; | |
2972 | return code; | |
6f9d8c32 NIS |
2973 | } |
2974 | ||
06da4f11 NIS |
2975 | IV |
2976 | PerlIOBuf_fill(PerlIO *f) | |
2977 | { | |
14a5cf38 JH |
2978 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
2979 | PerlIO *n = PerlIONext(f); | |
2980 | SSize_t avail; | |
2981 | /* | |
2982 | * FIXME: doing the down-stream flush is a bad idea if it causes | |
2983 | * pre-read data in stdio buffer to be discarded but this is too | |
2984 | * simplistic - as it skips _our_ hosekeeping and breaks tell tests. | |
71200d45 | 2985 | * if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { } |
14a5cf38 JH |
2986 | */ |
2987 | if (PerlIO_flush(f) != 0) | |
2988 | return -1; | |
2989 | if (PerlIOBase(f)->flags & PERLIO_F_TTY) | |
2990 | PerlIOBase_flush_linebuf(); | |
2991 | ||
2992 | if (!b->buf) | |
2993 | PerlIO_get_base(f); /* allocate via vtable */ | |
2994 | ||
2995 | b->ptr = b->end = b->buf; | |
2996 | if (PerlIO_fast_gets(n)) { | |
2997 | /* | |
2998 | * Layer below is also buffered We do _NOT_ want to call its | |
2999 | * ->Read() because that will loop till it gets what we asked for | |
3000 | * which may hang on a pipe etc. Instead take anything it has to | |
71200d45 | 3001 | * hand, or ask it to fill _once_. |
14a5cf38 JH |
3002 | */ |
3003 | avail = PerlIO_get_cnt(n); | |
3004 | if (avail <= 0) { | |
3005 | avail = PerlIO_fill(n); | |
3006 | if (avail == 0) | |
3007 | avail = PerlIO_get_cnt(n); | |
3008 | else { | |
3009 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
3010 | avail = 0; | |
3011 | } | |
3012 | } | |
3013 | if (avail > 0) { | |
3014 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
3015 | SSize_t cnt = avail; | |
3016 | if (avail > b->bufsiz) | |
3017 | avail = b->bufsiz; | |
3018 | Copy(ptr, b->buf, avail, STDCHAR); | |
3019 | PerlIO_set_ptrcnt(n, ptr + avail, cnt - avail); | |
3020 | } | |
3021 | } | |
3022 | else { | |
3023 | avail = PerlIO_read(n, b->ptr, b->bufsiz); | |
3024 | } | |
3025 | if (avail <= 0) { | |
3026 | if (avail == 0) | |
3027 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
3028 | else | |
3029 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
3030 | return -1; | |
3031 | } | |
3032 | b->end = b->buf + avail; | |
3033 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3034 | return 0; | |
06da4f11 NIS |
3035 | } |
3036 | ||
6f9d8c32 | 3037 | SSize_t |
9e353e3b | 3038 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 3039 | { |
14a5cf38 JH |
3040 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3041 | if (f) { | |
3042 | if (!b->ptr) | |
3043 | PerlIO_get_base(f); | |
3044 | return PerlIOBase_read(f, vbuf, count); | |
3045 | } | |
3046 | return 0; | |
6f9d8c32 NIS |
3047 | } |
3048 | ||
9e353e3b NIS |
3049 | SSize_t |
3050 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 3051 | { |
14a5cf38 JH |
3052 | const STDCHAR *buf = (const STDCHAR *) vbuf + count; |
3053 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3054 | SSize_t unread = 0; | |
3055 | SSize_t avail; | |
3056 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3057 | PerlIO_flush(f); | |
3058 | if (!b->buf) | |
3059 | PerlIO_get_base(f); | |
3060 | if (b->buf) { | |
3061 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
3062 | /* | |
3063 | * Buffer is already a read buffer, we can overwrite any chars | |
71200d45 | 3064 | * which have been read back to buffer start |
14a5cf38 JH |
3065 | */ |
3066 | avail = (b->ptr - b->buf); | |
3067 | } | |
3068 | else { | |
3069 | /* | |
3070 | * Buffer is idle, set it up so whole buffer is available for | |
71200d45 | 3071 | * unread |
14a5cf38 JH |
3072 | */ |
3073 | avail = b->bufsiz; | |
3074 | b->end = b->buf + avail; | |
3075 | b->ptr = b->end; | |
3076 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3077 | /* | |
71200d45 | 3078 | * Buffer extends _back_ from where we are now |
14a5cf38 JH |
3079 | */ |
3080 | b->posn -= b->bufsiz; | |
3081 | } | |
3082 | if (avail > (SSize_t) count) { | |
3083 | /* | |
71200d45 | 3084 | * If we have space for more than count, just move count |
14a5cf38 JH |
3085 | */ |
3086 | avail = count; | |
3087 | } | |
3088 | if (avail > 0) { | |
3089 | b->ptr -= avail; | |
3090 | buf -= avail; | |
3091 | /* | |
3092 | * In simple stdio-like ungetc() case chars will be already | |
71200d45 | 3093 | * there |
14a5cf38 JH |
3094 | */ |
3095 | if (buf != b->ptr) { | |
3096 | Copy(buf, b->ptr, avail, STDCHAR); | |
3097 | } | |
3098 | count -= avail; | |
3099 | unread += avail; | |
3100 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
3101 | } | |
3102 | } | |
3103 | return unread; | |
760ac839 LW |
3104 | } |
3105 | ||
9e353e3b NIS |
3106 | SSize_t |
3107 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 3108 | { |
14a5cf38 JH |
3109 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3110 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
3111 | Size_t written = 0; | |
3112 | if (!b->buf) | |
3113 | PerlIO_get_base(f); | |
3114 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
3115 | return 0; | |
3116 | while (count > 0) { | |
3117 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
3118 | if ((SSize_t) count < avail) | |
3119 | avail = count; | |
3120 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
3121 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) { | |
3122 | while (avail > 0) { | |
3123 | int ch = *buf++; | |
3124 | *(b->ptr)++ = ch; | |
3125 | count--; | |
3126 | avail--; | |
3127 | written++; | |
3128 | if (ch == '\n') { | |
3129 | PerlIO_flush(f); | |
3130 | break; | |
3131 | } | |
3132 | } | |
3133 | } | |
3134 | else { | |
3135 | if (avail) { | |
3136 | Copy(buf, b->ptr, avail, STDCHAR); | |
3137 | count -= avail; | |
3138 | buf += avail; | |
3139 | written += avail; | |
3140 | b->ptr += avail; | |
3141 | } | |
3142 | } | |
3143 | if (b->ptr >= (b->buf + b->bufsiz)) | |
3144 | PerlIO_flush(f); | |
3145 | } | |
3146 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) | |
3147 | PerlIO_flush(f); | |
3148 | return written; | |
9e353e3b NIS |
3149 | } |
3150 | ||
3151 | IV | |
3152 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
3153 | { | |
14a5cf38 JH |
3154 | IV code; |
3155 | if ((code = PerlIO_flush(f)) == 0) { | |
3156 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3157 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
3158 | code = PerlIO_seek(PerlIONext(f), offset, whence); | |
3159 | if (code == 0) { | |
3160 | b->posn = PerlIO_tell(PerlIONext(f)); | |
3161 | } | |
9e353e3b | 3162 | } |
14a5cf38 | 3163 | return code; |
9e353e3b NIS |
3164 | } |
3165 | ||
3166 | Off_t | |
3167 | PerlIOBuf_tell(PerlIO *f) | |
3168 | { | |
14a5cf38 JH |
3169 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3170 | /* | |
71200d45 | 3171 | * b->posn is file position where b->buf was read, or will be written |
14a5cf38 JH |
3172 | */ |
3173 | Off_t posn = b->posn; | |
3174 | if (b->buf) { | |
3175 | /* | |
71200d45 | 3176 | * If buffer is valid adjust position by amount in buffer |
14a5cf38 JH |
3177 | */ |
3178 | posn += (b->ptr - b->buf); | |
3179 | } | |
3180 | return posn; | |
9e353e3b NIS |
3181 | } |
3182 | ||
3183 | IV | |
3184 | PerlIOBuf_close(PerlIO *f) | |
3185 | { | |
14a5cf38 JH |
3186 | IV code = PerlIOBase_close(f); |
3187 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3188 | if (b->buf && b->buf != (STDCHAR *) & b->oneword) { | |
3a1ee7e8 | 3189 | Safefree(b->buf); |
14a5cf38 JH |
3190 | } |
3191 | b->buf = NULL; | |
3192 | b->ptr = b->end = b->buf; | |
3193 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); | |
3194 | return code; | |
760ac839 LW |
3195 | } |
3196 | ||
9e353e3b NIS |
3197 | STDCHAR * |
3198 | PerlIOBuf_get_ptr(PerlIO *f) | |
3199 | { | |
14a5cf38 JH |
3200 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3201 | if (!b->buf) | |
3202 | PerlIO_get_base(f); | |
3203 | return b->ptr; | |
9e353e3b NIS |
3204 | } |
3205 | ||
05d1247b | 3206 | SSize_t |
9e353e3b NIS |
3207 | PerlIOBuf_get_cnt(PerlIO *f) |
3208 | { | |
14a5cf38 JH |
3209 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3210 | if (!b->buf) | |
3211 | PerlIO_get_base(f); | |
3212 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
3213 | return (b->end - b->ptr); | |
3214 | return 0; | |
9e353e3b NIS |
3215 | } |
3216 | ||
3217 | STDCHAR * | |
3218 | PerlIOBuf_get_base(PerlIO *f) | |
3219 | { | |
14a5cf38 JH |
3220 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3221 | if (!b->buf) { | |
3222 | if (!b->bufsiz) | |
3223 | b->bufsiz = 4096; | |
a1ea730d | 3224 | b->buf = |
7fcdafbd | 3225 | Newz('B',b->buf,b->bufsiz, STDCHAR); |
14a5cf38 JH |
3226 | if (!b->buf) { |
3227 | b->buf = (STDCHAR *) & b->oneword; | |
3228 | b->bufsiz = sizeof(b->oneword); | |
3229 | } | |
3230 | b->ptr = b->buf; | |
3231 | b->end = b->ptr; | |
06da4f11 | 3232 | } |
14a5cf38 | 3233 | return b->buf; |
9e353e3b NIS |
3234 | } |
3235 | ||
3236 | Size_t | |
3237 | PerlIOBuf_bufsiz(PerlIO *f) | |
3238 | { | |
14a5cf38 JH |
3239 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3240 | if (!b->buf) | |
3241 | PerlIO_get_base(f); | |
3242 | return (b->end - b->buf); | |
9e353e3b NIS |
3243 | } |
3244 | ||
3245 | void | |
14a5cf38 | 3246 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
9e353e3b | 3247 | { |
14a5cf38 JH |
3248 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3249 | if (!b->buf) | |
3250 | PerlIO_get_base(f); | |
3251 | b->ptr = ptr; | |
3252 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) { | |
3253 | dTHX; | |
3254 | assert(PerlIO_get_cnt(f) == cnt); | |
3255 | assert(b->ptr >= b->buf); | |
3256 | } | |
3257 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
760ac839 LW |
3258 | } |
3259 | ||
71200d45 | 3260 | PerlIO * |
ecdeb87c | 3261 | PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 | 3262 | { |
ecdeb87c | 3263 | return PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
3264 | } |
3265 | ||
3266 | ||
3267 | ||
9e353e3b | 3268 | PerlIO_funcs PerlIO_perlio = { |
14a5cf38 JH |
3269 | "perlio", |
3270 | sizeof(PerlIOBuf), | |
3271 | PERLIO_K_BUFFERED, | |
3272 | PerlIOBuf_pushed, | |
3273 | PerlIOBase_noop_ok, | |
3274 | PerlIOBuf_open, | |
3275 | NULL, | |
3276 | PerlIOBase_fileno, | |
71200d45 | 3277 | PerlIOBuf_dup, |
14a5cf38 JH |
3278 | PerlIOBuf_read, |
3279 | PerlIOBuf_unread, | |
3280 | PerlIOBuf_write, | |
3281 | PerlIOBuf_seek, | |
3282 | PerlIOBuf_tell, | |
3283 | PerlIOBuf_close, | |
3284 | PerlIOBuf_flush, | |
3285 | PerlIOBuf_fill, | |
3286 | PerlIOBase_eof, | |
3287 | PerlIOBase_error, | |
3288 | PerlIOBase_clearerr, | |
3289 | PerlIOBase_setlinebuf, | |
3290 | PerlIOBuf_get_base, | |
3291 | PerlIOBuf_bufsiz, | |
3292 | PerlIOBuf_get_ptr, | |
3293 | PerlIOBuf_get_cnt, | |
3294 | PerlIOBuf_set_ptrcnt, | |
9e353e3b NIS |
3295 | }; |
3296 | ||
66ecd56b | 3297 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 3298 | /* |
71200d45 | 3299 | * Temp layer to hold unread chars when cannot do it any other way |
14a5cf38 | 3300 | */ |
5e2ab84b NIS |
3301 | |
3302 | IV | |
3303 | PerlIOPending_fill(PerlIO *f) | |
3304 | { | |
14a5cf38 | 3305 | /* |
71200d45 | 3306 | * Should never happen |
14a5cf38 JH |
3307 | */ |
3308 | PerlIO_flush(f); | |
3309 | return 0; | |
5e2ab84b NIS |
3310 | } |
3311 | ||
3312 | IV | |
3313 | PerlIOPending_close(PerlIO *f) | |
3314 | { | |
14a5cf38 | 3315 | /* |
71200d45 | 3316 | * A tad tricky - flush pops us, then we close new top |
14a5cf38 JH |
3317 | */ |
3318 | PerlIO_flush(f); | |
3319 | return PerlIO_close(f); | |
5e2ab84b NIS |
3320 | } |
3321 | ||
3322 | IV | |
3323 | PerlIOPending_seek(PerlIO *f, Off_t offset, int whence) | |
3324 | { | |
14a5cf38 | 3325 | /* |
71200d45 | 3326 | * A tad tricky - flush pops us, then we seek new top |
14a5cf38 JH |
3327 | */ |
3328 | PerlIO_flush(f); | |
3329 | return PerlIO_seek(f, offset, whence); | |
5e2ab84b NIS |
3330 | } |
3331 | ||
3332 | ||
3333 | IV | |
3334 | PerlIOPending_flush(PerlIO *f) | |
3335 | { | |
14a5cf38 JH |
3336 | dTHX; |
3337 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3338 | if (b->buf && b->buf != (STDCHAR *) & b->oneword) { | |
3a1ee7e8 | 3339 | Safefree(b->buf); |
14a5cf38 JH |
3340 | b->buf = NULL; |
3341 | } | |
3342 | PerlIO_pop(aTHX_ f); | |
3343 | return 0; | |
5e2ab84b NIS |
3344 | } |
3345 | ||
3346 | void | |
14a5cf38 | 3347 | PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
5e2ab84b | 3348 | { |
14a5cf38 JH |
3349 | if (cnt <= 0) { |
3350 | PerlIO_flush(f); | |
3351 | } | |
3352 | else { | |
3353 | PerlIOBuf_set_ptrcnt(f, ptr, cnt); | |
3354 | } | |
5e2ab84b NIS |
3355 | } |
3356 | ||
3357 | IV | |
14a5cf38 | 3358 | PerlIOPending_pushed(PerlIO *f, const char *mode, SV *arg) |
5e2ab84b | 3359 | { |
14a5cf38 JH |
3360 | IV code = PerlIOBase_pushed(f, mode, arg); |
3361 | PerlIOl *l = PerlIOBase(f); | |
3362 | /* | |
71200d45 NIS |
3363 | * Our PerlIO_fast_gets must match what we are pushed on, or sv_gets() |
3364 | * etc. get muddled when it changes mid-string when we auto-pop. | |
14a5cf38 JH |
3365 | */ |
3366 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS | PERLIO_F_UTF8)) | | |
3367 | (PerlIOBase(PerlIONext(f))-> | |
3368 | flags & (PERLIO_F_FASTGETS | PERLIO_F_UTF8)); | |
3369 | return code; | |
5e2ab84b NIS |
3370 | } |
3371 | ||
3372 | SSize_t | |
3373 | PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count) | |
3374 | { | |
14a5cf38 JH |
3375 | SSize_t avail = PerlIO_get_cnt(f); |
3376 | SSize_t got = 0; | |
3377 | if (count < avail) | |
3378 | avail = count; | |
3379 | if (avail > 0) | |
3380 | got = PerlIOBuf_read(f, vbuf, avail); | |
3381 | if (got >= 0 && got < count) { | |
3382 | SSize_t more = | |
3383 | PerlIO_read(f, ((STDCHAR *) vbuf) + got, count - got); | |
3384 | if (more >= 0 || got == 0) | |
3385 | got += more; | |
3386 | } | |
3387 | return got; | |
5e2ab84b NIS |
3388 | } |
3389 | ||
5e2ab84b | 3390 | PerlIO_funcs PerlIO_pending = { |
14a5cf38 JH |
3391 | "pending", |
3392 | sizeof(PerlIOBuf), | |
3393 | PERLIO_K_BUFFERED, | |
3394 | PerlIOPending_pushed, | |
3395 | PerlIOBase_noop_ok, | |
3396 | NULL, | |
3397 | NULL, | |
3398 | PerlIOBase_fileno, | |
71200d45 | 3399 | PerlIOBuf_dup, |
14a5cf38 JH |
3400 | PerlIOPending_read, |
3401 | PerlIOBuf_unread, | |
3402 | PerlIOBuf_write, | |
3403 | PerlIOPending_seek, | |
3404 | PerlIOBuf_tell, | |
3405 | PerlIOPending_close, | |
3406 | PerlIOPending_flush, | |
3407 | PerlIOPending_fill, | |
3408 | PerlIOBase_eof, | |
3409 | PerlIOBase_error, | |
3410 | PerlIOBase_clearerr, | |
3411 | PerlIOBase_setlinebuf, | |
3412 | PerlIOBuf_get_base, | |
3413 | PerlIOBuf_bufsiz, | |
3414 | PerlIOBuf_get_ptr, | |
3415 | PerlIOBuf_get_cnt, | |
3416 | PerlIOPending_set_ptrcnt, | |
5e2ab84b NIS |
3417 | }; |
3418 | ||
3419 | ||
3420 | ||
3421 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 JH |
3422 | /* |
3423 | * crlf - translation On read translate CR,LF to "\n" we do this by | |
3424 | * overriding ptr/cnt entries to hand back a line at a time and keeping a | |
71200d45 | 3425 | * record of which nl we "lied" about. On write translate "\n" to CR,LF |
66ecd56b NIS |
3426 | */ |
3427 | ||
14a5cf38 JH |
3428 | typedef struct { |
3429 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
71200d45 | 3430 | STDCHAR *nl; /* Position of crlf we "lied" about in the |
14a5cf38 | 3431 | * buffer */ |
99efab12 NIS |
3432 | } PerlIOCrlf; |
3433 | ||
f5b9d040 | 3434 | IV |
14a5cf38 | 3435 | PerlIOCrlf_pushed(PerlIO *f, const char *mode, SV *arg) |
f5b9d040 | 3436 | { |
14a5cf38 JH |
3437 | IV code; |
3438 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
3439 | code = PerlIOBuf_pushed(f, mode, arg); | |
5e2ab84b | 3440 | #if 0 |
14a5cf38 JH |
3441 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08" UVxf "\n", |
3442 | f, PerlIOBase(f)->tab->name, (mode) ? mode : "(Null)", | |
3443 | PerlIOBase(f)->flags); | |
5e2ab84b | 3444 | #endif |
14a5cf38 | 3445 | return code; |
f5b9d040 NIS |
3446 | } |
3447 | ||
3448 | ||
99efab12 NIS |
3449 | SSize_t |
3450 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3451 | { | |
14a5cf38 JH |
3452 | PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf); |
3453 | if (c->nl) { | |
3454 | *(c->nl) = 0xd; | |
3455 | c->nl = NULL; | |
3456 | } | |
3457 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) | |
3458 | return PerlIOBuf_unread(f, vbuf, count); | |
3459 | else { | |
3460 | const STDCHAR *buf = (const STDCHAR *) vbuf + count; | |
3461 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3462 | SSize_t unread = 0; | |
3463 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3464 | PerlIO_flush(f); | |
3465 | if (!b->buf) | |
3466 | PerlIO_get_base(f); | |
3467 | if (b->buf) { | |
3468 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { | |
3469 | b->end = b->ptr = b->buf + b->bufsiz; | |
3470 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3471 | b->posn -= b->bufsiz; | |
3472 | } | |
3473 | while (count > 0 && b->ptr > b->buf) { | |
3474 | int ch = *--buf; | |
3475 | if (ch == '\n') { | |
3476 | if (b->ptr - 2 >= b->buf) { | |
3477 | *--(b->ptr) = 0xa; | |
3478 | *--(b->ptr) = 0xd; | |
3479 | unread++; | |
3480 | count--; | |
3481 | } | |
3482 | else { | |
3483 | buf++; | |
3484 | break; | |
3485 | } | |
3486 | } | |
3487 | else { | |
3488 | *--(b->ptr) = ch; | |
3489 | unread++; | |
3490 | count--; | |
3491 | } | |
3492 | } | |
3493 | } | |
3494 | return unread; | |
3495 | } | |
99efab12 NIS |
3496 | } |
3497 | ||
3498 | SSize_t | |
3499 | PerlIOCrlf_get_cnt(PerlIO *f) | |
3500 | { | |
14a5cf38 JH |
3501 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3502 | if (!b->buf) | |
3503 | PerlIO_get_base(f); | |
3504 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
3505 | PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf); | |
3506 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) { | |
3507 | STDCHAR *nl = b->ptr; | |
3508 | scan: | |
3509 | while (nl < b->end && *nl != 0xd) | |
3510 | nl++; | |
3511 | if (nl < b->end && *nl == 0xd) { | |
3512 | test: | |
3513 | if (nl + 1 < b->end) { | |
3514 | if (nl[1] == 0xa) { | |
3515 | *nl = '\n'; | |
3516 | c->nl = nl; | |
3517 | } | |
3518 | else { | |
3519 | /* | |
71200d45 | 3520 | * Not CR,LF but just CR |
14a5cf38 JH |
3521 | */ |
3522 | nl++; | |
3523 | goto scan; | |
3524 | } | |
3525 | } | |
3526 | else { | |
3527 | /* | |
71200d45 | 3528 | * Blast - found CR as last char in buffer |
14a5cf38 JH |
3529 | */ |
3530 | if (b->ptr < nl) { | |
3531 | /* | |
3532 | * They may not care, defer work as long as | |
71200d45 | 3533 | * possible |
14a5cf38 JH |
3534 | */ |
3535 | return (nl - b->ptr); | |
3536 | } | |
3537 | else { | |
3538 | int code; | |
3539 | b->ptr++; /* say we have read it as far as | |
3540 | * flush() is concerned */ | |
d1be9408 | 3541 | b->buf++; /* Leave space in front of buffer */ |
14a5cf38 JH |
3542 | b->bufsiz--; /* Buffer is thus smaller */ |
3543 | code = PerlIO_fill(f); /* Fetch some more */ | |
3544 | b->bufsiz++; /* Restore size for next time */ | |
3545 | b->buf--; /* Point at space */ | |
3546 | b->ptr = nl = b->buf; /* Which is what we hand | |
3547 | * off */ | |
3548 | b->posn--; /* Buffer starts here */ | |
3549 | *nl = 0xd; /* Fill in the CR */ | |
3550 | if (code == 0) | |
3551 | goto test; /* fill() call worked */ | |
3552 | /* | |
71200d45 | 3553 | * CR at EOF - just fall through |
14a5cf38 JH |
3554 | */ |
3555 | } | |
3556 | } | |
3557 | } | |
3558 | } | |
3559 | return (((c->nl) ? (c->nl + 1) : b->end) - b->ptr); | |
3560 | } | |
3561 | return 0; | |
99efab12 NIS |
3562 | } |
3563 | ||
3564 | void | |
14a5cf38 JH |
3565 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
3566 | { | |
3567 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3568 | PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf); | |
3569 | IV flags = PerlIOBase(f)->flags; | |
3570 | if (!b->buf) | |
3571 | PerlIO_get_base(f); | |
3572 | if (!ptr) { | |
3573 | if (c->nl) | |
3574 | ptr = c->nl + 1; | |
3575 | else { | |
3576 | ptr = b->end; | |
3577 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) | |
3578 | ptr--; | |
3579 | } | |
3580 | ptr -= cnt; | |
3581 | } | |
3582 | else { | |
3583 | /* | |
71200d45 | 3584 | * Test code - delete when it works ... |
14a5cf38 JH |
3585 | */ |
3586 | STDCHAR *chk; | |
3587 | if (c->nl) | |
3588 | chk = c->nl + 1; | |
3589 | else { | |
3590 | chk = b->end; | |
3591 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) | |
3592 | chk--; | |
3593 | } | |
3594 | chk -= cnt; | |
3595 | ||
3596 | if (ptr != chk) { | |
3597 | dTHX; | |
3598 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08" UVxf | |
3599 | " nl=%p e=%p for %d", ptr, chk, flags, c->nl, | |
3600 | b->end, cnt); | |
3601 | } | |
3602 | } | |
3603 | if (c->nl) { | |
3604 | if (ptr > c->nl) { | |
3605 | /* | |
71200d45 | 3606 | * They have taken what we lied about |
14a5cf38 JH |
3607 | */ |
3608 | *(c->nl) = 0xd; | |
3609 | c->nl = NULL; | |
3610 | ptr++; | |
3611 | } | |
3612 | } | |
3613 | b->ptr = ptr; | |
3614 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
99efab12 NIS |
3615 | } |
3616 | ||
3617 | SSize_t | |
3618 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) | |
3619 | { | |
14a5cf38 JH |
3620 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
3621 | return PerlIOBuf_write(f, vbuf, count); | |
3622 | else { | |
3623 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3624 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
3625 | const STDCHAR *ebuf = buf + count; | |
3626 | if (!b->buf) | |
3627 | PerlIO_get_base(f); | |
3628 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
3629 | return 0; | |
3630 | while (buf < ebuf) { | |
3631 | STDCHAR *eptr = b->buf + b->bufsiz; | |
3632 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
3633 | while (buf < ebuf && b->ptr < eptr) { | |
3634 | if (*buf == '\n') { | |
3635 | if ((b->ptr + 2) > eptr) { | |
3636 | /* | |
71200d45 | 3637 | * Not room for both |
14a5cf38 JH |
3638 | */ |
3639 | PerlIO_flush(f); | |
3640 | break; | |
3641 | } | |
3642 | else { | |
3643 | *(b->ptr)++ = 0xd; /* CR */ | |
3644 | *(b->ptr)++ = 0xa; /* LF */ | |
3645 | buf++; | |
3646 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) { | |
3647 | PerlIO_flush(f); | |
3648 | break; | |
3649 | } | |
3650 | } | |
3651 | } | |
3652 | else { | |
3653 | int ch = *buf++; | |
3654 | *(b->ptr)++ = ch; | |
3655 | } | |
3656 | if (b->ptr >= eptr) { | |
3657 | PerlIO_flush(f); | |
3658 | break; | |
3659 | } | |
3660 | } | |
3661 | } | |
3662 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) | |
3663 | PerlIO_flush(f); | |
3664 | return (buf - (STDCHAR *) vbuf); | |
3665 | } | |
99efab12 NIS |
3666 | } |
3667 | ||
3668 | IV | |
3669 | PerlIOCrlf_flush(PerlIO *f) | |
3670 | { | |
14a5cf38 JH |
3671 | PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf); |
3672 | if (c->nl) { | |
3673 | *(c->nl) = 0xd; | |
3674 | c->nl = NULL; | |
3675 | } | |
3676 | return PerlIOBuf_flush(f); | |
99efab12 NIS |
3677 | } |
3678 | ||
66ecd56b | 3679 | PerlIO_funcs PerlIO_crlf = { |
14a5cf38 JH |
3680 | "crlf", |
3681 | sizeof(PerlIOCrlf), | |
3682 | PERLIO_K_BUFFERED | PERLIO_K_CANCRLF, | |
3683 | PerlIOCrlf_pushed, | |
3684 | PerlIOBase_noop_ok, /* popped */ | |
3685 | PerlIOBuf_open, | |
3686 | NULL, | |
3687 | PerlIOBase_fileno, | |
71200d45 | 3688 | PerlIOBuf_dup, |
14a5cf38 JH |
3689 | PerlIOBuf_read, /* generic read works with ptr/cnt lies |
3690 | * ... */ | |
3691 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ | |
3692 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
3693 | PerlIOBuf_seek, | |
3694 | PerlIOBuf_tell, | |
3695 | PerlIOBuf_close, | |
3696 | PerlIOCrlf_flush, | |
3697 | PerlIOBuf_fill, | |
3698 | PerlIOBase_eof, | |
3699 | PerlIOBase_error, | |
3700 | PerlIOBase_clearerr, | |
3701 | PerlIOBase_setlinebuf, | |
3702 | PerlIOBuf_get_base, | |
3703 | PerlIOBuf_bufsiz, | |
3704 | PerlIOBuf_get_ptr, | |
3705 | PerlIOCrlf_get_cnt, | |
3706 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
3707 | }; |
3708 | ||
06da4f11 NIS |
3709 | #ifdef HAS_MMAP |
3710 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 3711 | /* |
71200d45 | 3712 | * mmap as "buffer" layer |
14a5cf38 | 3713 | */ |
06da4f11 | 3714 | |
14a5cf38 JH |
3715 | typedef struct { |
3716 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
3717 | Mmap_t mptr; /* Mapped address */ | |
3718 | Size_t len; /* mapped length */ | |
3719 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
06da4f11 NIS |
3720 | } PerlIOMmap; |
3721 | ||
c3d7c7c9 NIS |
3722 | static size_t page_size = 0; |
3723 | ||
06da4f11 NIS |
3724 | IV |
3725 | PerlIOMmap_map(PerlIO *f) | |
3726 | { | |
14a5cf38 JH |
3727 | dTHX; |
3728 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); | |
3729 | IV flags = PerlIOBase(f)->flags; | |
3730 | IV code = 0; | |
3731 | if (m->len) | |
3732 | abort(); | |
3733 | if (flags & PERLIO_F_CANREAD) { | |
3734 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
3735 | int fd = PerlIO_fileno(f); | |
10eefe7f CB |
3736 | Stat_t st; |
3737 | code = Fstat(fd, &st); | |
14a5cf38 JH |
3738 | if (code == 0 && S_ISREG(st.st_mode)) { |
3739 | SSize_t len = st.st_size - b->posn; | |
3740 | if (len > 0) { | |
3741 | Off_t posn; | |
3742 | if (!page_size) { | |
68d873c6 | 3743 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) |
14a5cf38 JH |
3744 | { |
3745 | SETERRNO(0, SS$_NORMAL); | |
68d873c6 | 3746 | # ifdef _SC_PAGESIZE |
14a5cf38 | 3747 | page_size = sysconf(_SC_PAGESIZE); |
68d873c6 | 3748 | # else |
14a5cf38 | 3749 | page_size = sysconf(_SC_PAGE_SIZE); |
14aaf8e8 | 3750 | # endif |
14a5cf38 JH |
3751 | if ((long) page_size < 0) { |
3752 | if (errno) { | |
3753 | SV *error = ERRSV; | |
3754 | char *msg; | |
3755 | STRLEN n_a; | |
3756 | (void) SvUPGRADE(error, SVt_PV); | |
3757 | msg = SvPVx(error, n_a); | |
3758 | Perl_croak(aTHX_ "panic: sysconf: %s", | |
3759 | msg); | |
3760 | } | |
3761 | else | |
3762 | Perl_croak(aTHX_ | |
3763 | "panic: sysconf: pagesize unknown"); | |
3764 | } | |
3765 | } | |
68d873c6 JH |
3766 | #else |
3767 | # ifdef HAS_GETPAGESIZE | |
14a5cf38 | 3768 | page_size = getpagesize(); |
68d873c6 JH |
3769 | # else |
3770 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
14a5cf38 | 3771 | page_size = PAGESIZE; /* compiletime, bad */ |
68d873c6 JH |
3772 | # endif |
3773 | # endif | |
3774 | #endif | |
14a5cf38 JH |
3775 | if ((IV) page_size <= 0) |
3776 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
3777 | (IV) page_size); | |
3778 | } | |
3779 | if (b->posn < 0) { | |
3780 | /* | |
3781 | * This is a hack - should never happen - open should | |
71200d45 | 3782 | * have set it ! |
14a5cf38 JH |
3783 | */ |
3784 | b->posn = PerlIO_tell(PerlIONext(f)); | |
3785 | } | |
3786 | posn = (b->posn / page_size) * page_size; | |
3787 | len = st.st_size - posn; | |
3788 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); | |
3789 | if (m->mptr && m->mptr != (Mmap_t) - 1) { | |
a5262162 | 3790 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
14a5cf38 | 3791 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 3792 | #endif |
a5262162 | 3793 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
14a5cf38 | 3794 | madvise(m->mptr, len, MADV_WILLNEED); |
a5262162 | 3795 | #endif |
14a5cf38 JH |
3796 | PerlIOBase(f)->flags = |
3797 | (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; | |
3798 | b->end = ((STDCHAR *) m->mptr) + len; | |
3799 | b->buf = ((STDCHAR *) m->mptr) + (b->posn - posn); | |
3800 | b->ptr = b->buf; | |
3801 | m->len = len; | |
3802 | } | |
3803 | else { | |
3804 | b->buf = NULL; | |
3805 | } | |
3806 | } | |
3807 | else { | |
3808 | PerlIOBase(f)->flags = | |
3809 | flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
3810 | b->buf = NULL; | |
3811 | b->ptr = b->end = b->ptr; | |
3812 | code = -1; | |
3813 | } | |
3814 | } | |
3815 | } | |
3816 | return code; | |
06da4f11 NIS |
3817 | } |
3818 | ||
3819 | IV | |
3820 | PerlIOMmap_unmap(PerlIO *f) | |
3821 | { | |
14a5cf38 JH |
3822 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3823 | PerlIOBuf *b = &m->base; | |
3824 | IV code = 0; | |
3825 | if (m->len) { | |
3826 | if (b->buf) { | |
3827 | code = munmap(m->mptr, m->len); | |
3828 | b->buf = NULL; | |
3829 | m->len = 0; | |
3830 | m->mptr = NULL; | |
3831 | if (PerlIO_seek(PerlIONext(f), b->posn, SEEK_SET) != 0) | |
3832 | code = -1; | |
3833 | } | |
3834 | b->ptr = b->end = b->buf; | |
3835 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); | |
3836 | } | |
3837 | return code; | |
06da4f11 NIS |
3838 | } |
3839 | ||
3840 | STDCHAR * | |
3841 | PerlIOMmap_get_base(PerlIO *f) | |
3842 | { | |
14a5cf38 JH |
3843 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3844 | PerlIOBuf *b = &m->base; | |
3845 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { | |
3846 | /* | |
71200d45 | 3847 | * Already have a readbuffer in progress |
14a5cf38 JH |
3848 | */ |
3849 | return b->buf; | |
3850 | } | |
3851 | if (b->buf) { | |
3852 | /* | |
71200d45 | 3853 | * We have a write buffer or flushed PerlIOBuf read buffer |
14a5cf38 JH |
3854 | */ |
3855 | m->bbuf = b->buf; /* save it in case we need it again */ | |
3856 | b->buf = NULL; /* Clear to trigger below */ | |
3857 | } | |
3858 | if (!b->buf) { | |
3859 | PerlIOMmap_map(f); /* Try and map it */ | |
3860 | if (!b->buf) { | |
3861 | /* | |
71200d45 | 3862 | * Map did not work - recover PerlIOBuf buffer if we have one |
14a5cf38 JH |
3863 | */ |
3864 | b->buf = m->bbuf; | |
3865 | } | |
3866 | } | |
3867 | b->ptr = b->end = b->buf; | |
3868 | if (b->buf) | |
3869 | return b->buf; | |
3870 | return PerlIOBuf_get_base(f); | |
06da4f11 NIS |
3871 | } |
3872 | ||
3873 | SSize_t | |
3874 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
3875 | { | |
14a5cf38 JH |
3876 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3877 | PerlIOBuf *b = &m->base; | |
3878 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3879 | PerlIO_flush(f); | |
3880 | if (b->ptr && (b->ptr - count) >= b->buf | |
3881 | && memEQ(b->ptr - count, vbuf, count)) { | |
3882 | b->ptr -= count; | |
3883 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
3884 | return count; | |
3885 | } | |
3886 | if (m->len) { | |
3887 | /* | |
71200d45 | 3888 | * Loose the unwritable mapped buffer |
14a5cf38 JH |
3889 | */ |
3890 | PerlIO_flush(f); | |
3891 | /* | |
71200d45 | 3892 | * If flush took the "buffer" see if we have one from before |
14a5cf38 JH |
3893 | */ |
3894 | if (!b->buf && m->bbuf) | |
3895 | b->buf = m->bbuf; | |
3896 | if (!b->buf) { | |
3897 | PerlIOBuf_get_base(f); | |
3898 | m->bbuf = b->buf; | |
3899 | } | |
3900 | } | |
3901 | return PerlIOBuf_unread(f, vbuf, count); | |
06da4f11 NIS |
3902 | } |
3903 | ||
3904 | SSize_t | |
3905 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
3906 | { | |
14a5cf38 JH |
3907 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3908 | PerlIOBuf *b = &m->base; | |
3909 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) { | |
3910 | /* | |
71200d45 | 3911 | * No, or wrong sort of, buffer |
14a5cf38 JH |
3912 | */ |
3913 | if (m->len) { | |
3914 | if (PerlIOMmap_unmap(f) != 0) | |
3915 | return 0; | |
3916 | } | |
3917 | /* | |
71200d45 | 3918 | * If unmap took the "buffer" see if we have one from before |
14a5cf38 JH |
3919 | */ |
3920 | if (!b->buf && m->bbuf) | |
3921 | b->buf = m->bbuf; | |
3922 | if (!b->buf) { | |
3923 | PerlIOBuf_get_base(f); | |
3924 | m->bbuf = b->buf; | |
3925 | } | |
06da4f11 | 3926 | } |
14a5cf38 | 3927 | return PerlIOBuf_write(f, vbuf, count); |
06da4f11 NIS |
3928 | } |
3929 | ||
3930 | IV | |
3931 | PerlIOMmap_flush(PerlIO *f) | |
3932 | { | |
14a5cf38 JH |
3933 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3934 | PerlIOBuf *b = &m->base; | |
3935 | IV code = PerlIOBuf_flush(f); | |
3936 | /* | |
71200d45 | 3937 | * Now we are "synced" at PerlIOBuf level |
14a5cf38 JH |
3938 | */ |
3939 | if (b->buf) { | |
3940 | if (m->len) { | |
3941 | /* | |
71200d45 | 3942 | * Unmap the buffer |
14a5cf38 JH |
3943 | */ |
3944 | if (PerlIOMmap_unmap(f) != 0) | |
3945 | code = -1; | |
3946 | } | |
3947 | else { | |
3948 | /* | |
3949 | * We seem to have a PerlIOBuf buffer which was not mapped | |
71200d45 | 3950 | * remember it in case we need one later |
14a5cf38 JH |
3951 | */ |
3952 | m->bbuf = b->buf; | |
3953 | } | |
3954 | } | |
3955 | return code; | |
06da4f11 NIS |
3956 | } |
3957 | ||
3958 | IV | |
3959 | PerlIOMmap_fill(PerlIO *f) | |
3960 | { | |
14a5cf38 JH |
3961 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
3962 | IV code = PerlIO_flush(f); | |
3963 | if (code == 0 && !b->buf) { | |
3964 | code = PerlIOMmap_map(f); | |
3965 | } | |
3966 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { | |
3967 | code = PerlIOBuf_fill(f); | |
3968 | } | |
3969 | return code; | |
06da4f11 NIS |
3970 | } |
3971 | ||
3972 | IV | |
3973 | PerlIOMmap_close(PerlIO *f) | |
3974 | { | |
14a5cf38 JH |
3975 | PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap); |
3976 | PerlIOBuf *b = &m->base; | |
3977 | IV code = PerlIO_flush(f); | |
3978 | if (m->bbuf) { | |
3979 | b->buf = m->bbuf; | |
3980 | m->bbuf = NULL; | |
3981 | b->ptr = b->end = b->buf; | |
3982 | } | |
3983 | if (PerlIOBuf_close(f) != 0) | |
3984 | code = -1; | |
3985 | return code; | |
06da4f11 NIS |
3986 | } |
3987 | ||
71200d45 | 3988 | PerlIO * |
ecdeb87c | 3989 | PerlIOMmap_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 | 3990 | { |
ecdeb87c | 3991 | return PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
3992 | } |
3993 | ||
06da4f11 NIS |
3994 | |
3995 | PerlIO_funcs PerlIO_mmap = { | |
14a5cf38 JH |
3996 | "mmap", |
3997 | sizeof(PerlIOMmap), | |
3998 | PERLIO_K_BUFFERED, | |
3999 | PerlIOBuf_pushed, | |
4000 | PerlIOBase_noop_ok, | |
4001 | PerlIOBuf_open, | |
4002 | NULL, | |
4003 | PerlIOBase_fileno, | |
71200d45 | 4004 | PerlIOMmap_dup, |
14a5cf38 JH |
4005 | PerlIOBuf_read, |
4006 | PerlIOMmap_unread, | |
4007 | PerlIOMmap_write, | |
4008 | PerlIOBuf_seek, | |
4009 | PerlIOBuf_tell, | |
4010 | PerlIOBuf_close, | |
4011 | PerlIOMmap_flush, | |
4012 | PerlIOMmap_fill, | |
4013 | PerlIOBase_eof, | |
4014 | PerlIOBase_error, | |
4015 | PerlIOBase_clearerr, | |
4016 | PerlIOBase_setlinebuf, | |
4017 | PerlIOMmap_get_base, | |
4018 | PerlIOBuf_bufsiz, | |
4019 | PerlIOBuf_get_ptr, | |
4020 | PerlIOBuf_get_cnt, | |
4021 | PerlIOBuf_set_ptrcnt, | |
06da4f11 NIS |
4022 | }; |
4023 | ||
14a5cf38 | 4024 | #endif /* HAS_MMAP */ |
06da4f11 | 4025 | |
9e353e3b NIS |
4026 | #undef PerlIO_stdin |
4027 | PerlIO * | |
4028 | PerlIO_stdin(void) | |
4029 | { | |
a1ea730d NIS |
4030 | dTHX; |
4031 | if (!PL_perlio) { | |
14a5cf38 JH |
4032 | PerlIO_stdstreams(aTHX); |
4033 | } | |
a1ea730d | 4034 | return &PL_perlio[1]; |
9e353e3b NIS |
4035 | } |
4036 | ||
4037 | #undef PerlIO_stdout | |
4038 | PerlIO * | |
4039 | PerlIO_stdout(void) | |
4040 | { | |
a1ea730d NIS |
4041 | dTHX; |
4042 | if (!PL_perlio) { | |
14a5cf38 JH |
4043 | PerlIO_stdstreams(aTHX); |
4044 | } | |
a1ea730d | 4045 | return &PL_perlio[2]; |
9e353e3b NIS |
4046 | } |
4047 | ||
4048 | #undef PerlIO_stderr | |
4049 | PerlIO * | |
4050 | PerlIO_stderr(void) | |
4051 | { | |
a1ea730d NIS |
4052 | dTHX; |
4053 | if (!PL_perlio) { | |
14a5cf38 JH |
4054 | PerlIO_stdstreams(aTHX); |
4055 | } | |
a1ea730d | 4056 | return &PL_perlio[3]; |
9e353e3b NIS |
4057 | } |
4058 | ||
4059 | /*--------------------------------------------------------------------------------------*/ | |
4060 | ||
4061 | #undef PerlIO_getname | |
4062 | char * | |
4063 | PerlIO_getname(PerlIO *f, char *buf) | |
4064 | { | |
14a5cf38 JH |
4065 | dTHX; |
4066 | char *name = NULL; | |
a15cef0c | 4067 | #ifdef VMS |
14a5cf38 JH |
4068 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
4069 | if (stdio) | |
4070 | name = fgetname(stdio, buf); | |
a15cef0c | 4071 | #else |
14a5cf38 | 4072 | Perl_croak(aTHX_ "Don't know how to get file name"); |
a15cef0c | 4073 | #endif |
14a5cf38 | 4074 | return name; |
9e353e3b NIS |
4075 | } |
4076 | ||
4077 | ||
4078 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 JH |
4079 | /* |
4080 | * Functions which can be called on any kind of PerlIO implemented in | |
71200d45 | 4081 | * terms of above |
14a5cf38 | 4082 | */ |
9e353e3b NIS |
4083 | |
4084 | #undef PerlIO_getc | |
6f9d8c32 | 4085 | int |
9e353e3b | 4086 | PerlIO_getc(PerlIO *f) |
760ac839 | 4087 | { |
14a5cf38 JH |
4088 | STDCHAR buf[1]; |
4089 | SSize_t count = PerlIO_read(f, buf, 1); | |
4090 | if (count == 1) { | |
4091 | return (unsigned char) buf[0]; | |
4092 | } | |
4093 | return EOF; | |
313ca112 NIS |
4094 | } |
4095 | ||
4096 | #undef PerlIO_ungetc | |
4097 | int | |
4098 | PerlIO_ungetc(PerlIO *f, int ch) | |
4099 | { | |
14a5cf38 JH |
4100 | if (ch != EOF) { |
4101 | STDCHAR buf = ch; | |
4102 | if (PerlIO_unread(f, &buf, 1) == 1) | |
4103 | return ch; | |
4104 | } | |
4105 | return EOF; | |
760ac839 LW |
4106 | } |
4107 | ||
9e353e3b NIS |
4108 | #undef PerlIO_putc |
4109 | int | |
4110 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 4111 | { |
14a5cf38 JH |
4112 | STDCHAR buf = ch; |
4113 | return PerlIO_write(f, &buf, 1); | |
760ac839 LW |
4114 | } |
4115 | ||
9e353e3b | 4116 | #undef PerlIO_puts |
760ac839 | 4117 | int |
9e353e3b | 4118 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 4119 | { |
14a5cf38 JH |
4120 | STRLEN len = strlen(s); |
4121 | return PerlIO_write(f, s, len); | |
760ac839 LW |
4122 | } |
4123 | ||
4124 | #undef PerlIO_rewind | |
4125 | void | |
c78749f2 | 4126 | PerlIO_rewind(PerlIO *f) |
760ac839 | 4127 | { |
14a5cf38 JH |
4128 | PerlIO_seek(f, (Off_t) 0, SEEK_SET); |
4129 | PerlIO_clearerr(f); | |
6f9d8c32 NIS |
4130 | } |
4131 | ||
4132 | #undef PerlIO_vprintf | |
4133 | int | |
4134 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
4135 | { | |
14a5cf38 JH |
4136 | dTHX; |
4137 | SV *sv = newSVpvn("", 0); | |
4138 | char *s; | |
4139 | STRLEN len; | |
4140 | SSize_t wrote; | |
2cc61e15 | 4141 | #ifdef NEED_VA_COPY |
14a5cf38 JH |
4142 | va_list apc; |
4143 | Perl_va_copy(ap, apc); | |
4144 | sv_vcatpvf(sv, fmt, &apc); | |
2cc61e15 | 4145 | #else |
14a5cf38 | 4146 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 4147 | #endif |
14a5cf38 JH |
4148 | s = SvPV(sv, len); |
4149 | wrote = PerlIO_write(f, s, len); | |
4150 | SvREFCNT_dec(sv); | |
4151 | return wrote; | |
760ac839 LW |
4152 | } |
4153 | ||
4154 | #undef PerlIO_printf | |
6f9d8c32 | 4155 | int |
14a5cf38 | 4156 | PerlIO_printf(PerlIO *f, const char *fmt, ...) |
760ac839 | 4157 | { |
14a5cf38 JH |
4158 | va_list ap; |
4159 | int result; | |
4160 | va_start(ap, fmt); | |
4161 | result = PerlIO_vprintf(f, fmt, ap); | |
4162 | va_end(ap); | |
4163 | return result; | |
760ac839 LW |
4164 | } |
4165 | ||
4166 | #undef PerlIO_stdoutf | |
6f9d8c32 | 4167 | int |
14a5cf38 | 4168 | PerlIO_stdoutf(const char *fmt, ...) |
760ac839 | 4169 | { |
14a5cf38 JH |
4170 | va_list ap; |
4171 | int result; | |
4172 | va_start(ap, fmt); | |
4173 | result = PerlIO_vprintf(PerlIO_stdout(), fmt, ap); | |
4174 | va_end(ap); | |
4175 | return result; | |
760ac839 LW |
4176 | } |
4177 | ||
4178 | #undef PerlIO_tmpfile | |
4179 | PerlIO * | |
c78749f2 | 4180 | PerlIO_tmpfile(void) |
760ac839 | 4181 | { |
14a5cf38 | 4182 | /* |
71200d45 | 4183 | * I have no idea how portable mkstemp() is ... |
14a5cf38 | 4184 | */ |
83b075c3 | 4185 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
14a5cf38 JH |
4186 | dTHX; |
4187 | PerlIO *f = NULL; | |
4188 | FILE *stdio = PerlSIO_tmpfile(); | |
4189 | if (stdio) { | |
4190 | PerlIOStdio *s = | |
4191 | PerlIOSelf(PerlIO_push | |
4192 | (aTHX_(f = PerlIO_allocate(aTHX)), &PerlIO_stdio, | |
4193 | "w+", Nullsv), PerlIOStdio); | |
4194 | s->stdio = stdio; | |
4195 | } | |
4196 | return f; | |
83b075c3 | 4197 | #else |
14a5cf38 JH |
4198 | dTHX; |
4199 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX", 0); | |
4200 | int fd = mkstemp(SvPVX(sv)); | |
4201 | PerlIO *f = NULL; | |
4202 | if (fd >= 0) { | |
4203 | f = PerlIO_fdopen(fd, "w+"); | |
4204 | if (f) { | |
4205 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; | |
4206 | } | |
4207 | PerlLIO_unlink(SvPVX(sv)); | |
4208 | SvREFCNT_dec(sv); | |
4209 | } | |
4210 | return f; | |
83b075c3 | 4211 | #endif |
760ac839 LW |
4212 | } |
4213 | ||
6f9d8c32 NIS |
4214 | #undef HAS_FSETPOS |
4215 | #undef HAS_FGETPOS | |
4216 | ||
14a5cf38 JH |
4217 | #endif /* USE_SFIO */ |
4218 | #endif /* PERLIO_IS_STDIO */ | |
760ac839 | 4219 | |
9e353e3b | 4220 | /*======================================================================================*/ |
14a5cf38 | 4221 | /* |
71200d45 NIS |
4222 | * Now some functions in terms of above which may be needed even if we are |
4223 | * not in true PerlIO mode | |
9e353e3b NIS |
4224 | */ |
4225 | ||
760ac839 LW |
4226 | #ifndef HAS_FSETPOS |
4227 | #undef PerlIO_setpos | |
4228 | int | |
766a733e | 4229 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 4230 | { |
14a5cf38 JH |
4231 | dTHX; |
4232 | if (SvOK(pos)) { | |
4233 | STRLEN len; | |
4234 | Off_t *posn = (Off_t *) SvPV(pos, len); | |
4235 | if (f && len == sizeof(Off_t)) | |
4236 | return PerlIO_seek(f, *posn, SEEK_SET); | |
4237 | } | |
4238 | SETERRNO(EINVAL, SS$_IVCHAN); | |
4239 | return -1; | |
760ac839 | 4240 | } |
c411622e | 4241 | #else |
c411622e | 4242 | #undef PerlIO_setpos |
4243 | int | |
766a733e | 4244 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 4245 | { |
14a5cf38 JH |
4246 | dTHX; |
4247 | if (SvOK(pos)) { | |
4248 | STRLEN len; | |
4249 | Fpos_t *fpos = (Fpos_t *) SvPV(pos, len); | |
4250 | if (f && len == sizeof(Fpos_t)) { | |
2d4389e4 | 4251 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
14a5cf38 | 4252 | return fsetpos64(f, fpos); |
d9b3e12d | 4253 | #else |
14a5cf38 | 4254 | return fsetpos(f, fpos); |
d9b3e12d | 4255 | #endif |
14a5cf38 | 4256 | } |
766a733e | 4257 | } |
14a5cf38 JH |
4258 | SETERRNO(EINVAL, SS$_IVCHAN); |
4259 | return -1; | |
c411622e | 4260 | } |
4261 | #endif | |
760ac839 LW |
4262 | |
4263 | #ifndef HAS_FGETPOS | |
4264 | #undef PerlIO_getpos | |
4265 | int | |
766a733e | 4266 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 4267 | { |
14a5cf38 JH |
4268 | dTHX; |
4269 | Off_t posn = PerlIO_tell(f); | |
4270 | sv_setpvn(pos, (char *) &posn, sizeof(posn)); | |
4271 | return (posn == (Off_t) - 1) ? -1 : 0; | |
760ac839 | 4272 | } |
c411622e | 4273 | #else |
c411622e | 4274 | #undef PerlIO_getpos |
4275 | int | |
766a733e | 4276 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 4277 | { |
14a5cf38 JH |
4278 | dTHX; |
4279 | Fpos_t fpos; | |
4280 | int code; | |
2d4389e4 | 4281 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
14a5cf38 | 4282 | code = fgetpos64(f, &fpos); |
d9b3e12d | 4283 | #else |
14a5cf38 | 4284 | code = fgetpos(f, &fpos); |
d9b3e12d | 4285 | #endif |
14a5cf38 JH |
4286 | sv_setpvn(pos, (char *) &fpos, sizeof(fpos)); |
4287 | return code; | |
c411622e | 4288 | } |
4289 | #endif | |
760ac839 LW |
4290 | |
4291 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
4292 | ||
4293 | int | |
c78749f2 | 4294 | vprintf(char *pat, char *args) |
662a7e3f CS |
4295 | { |
4296 | _doprnt(pat, args, stdout); | |
14a5cf38 JH |
4297 | return 0; /* wrong, but perl doesn't use the return |
4298 | * value */ | |
662a7e3f CS |
4299 | } |
4300 | ||
4301 | int | |
c78749f2 | 4302 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
4303 | { |
4304 | _doprnt(pat, args, fd); | |
14a5cf38 JH |
4305 | return 0; /* wrong, but perl doesn't use the return |
4306 | * value */ | |
760ac839 LW |
4307 | } |
4308 | ||
4309 | #endif | |
4310 | ||
4311 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 4312 | int |
8ac85365 | 4313 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 | 4314 | { |
14a5cf38 JH |
4315 | int val = vsprintf(s, fmt, ap); |
4316 | if (n >= 0) { | |
4317 | if (strlen(s) >= (STRLEN) n) { | |
4318 | dTHX; | |
4319 | (void) PerlIO_puts(Perl_error_log, | |
4320 | "panic: sprintf overflow - memory corrupted!\n"); | |
4321 | my_exit(1); | |
4322 | } | |
760ac839 | 4323 | } |
14a5cf38 | 4324 | return val; |
760ac839 LW |
4325 | } |
4326 | #endif | |
4327 | ||
4328 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 4329 | int |
14a5cf38 | 4330 | PerlIO_sprintf(char *s, int n, const char *fmt, ...) |
760ac839 | 4331 | { |
14a5cf38 JH |
4332 | va_list ap; |
4333 | int result; | |
4334 | va_start(ap, fmt); | |
4335 | result = PerlIO_vsprintf(s, n, fmt, ap); | |
4336 | va_end(ap); | |
4337 | return result; | |
760ac839 LW |
4338 | } |
4339 | #endif | |
7fcdafbd | 4340 | |
93a8090d NIS |
4341 | |
4342 | ||
4343 | ||
4344 |