Commit | Line | Data |
---|---|---|
14a5cf38 | 1 | /* |
acde74e1 | 2 | * perlio.c Copyright (c) 1996-2006, 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 | /* |
d31a8517 AT |
8 | * Hour after hour for nearly three weary days he had jogged up and down, |
9 | * over passes, and through long dales, and across many streams. | |
10 | */ | |
11 | ||
166f8a29 DM |
12 | /* This file contains the functions needed to implement PerlIO, which |
13 | * is Perl's private replacement for the C stdio library. This is used | |
14 | * by default unless you compile with -Uuseperlio or run with | |
15 | * PERLIO=:stdio (but don't do this unless you know what you're doing) | |
16 | */ | |
17 | ||
d31a8517 | 18 | /* |
71200d45 | 19 | * If we have ActivePerl-like PERL_IMPLICIT_SYS then we need a dTHX to get |
14a5cf38 | 20 | * at the dispatch tables, even when we do not need it for other reasons. |
71200d45 | 21 | * Invent a dSYS macro to abstract this out |
14a5cf38 | 22 | */ |
7bcba3d4 NIS |
23 | #ifdef PERL_IMPLICIT_SYS |
24 | #define dSYS dTHX | |
25 | #else | |
26 | #define dSYS dNOOP | |
27 | #endif | |
28 | ||
760ac839 | 29 | #define VOIDUSED 1 |
12ae5dfc JH |
30 | #ifdef PERL_MICRO |
31 | # include "uconfig.h" | |
32 | #else | |
b0f06652 VK |
33 | # ifndef USE_CROSS_COMPILE |
34 | # include "config.h" | |
35 | # else | |
36 | # include "xconfig.h" | |
37 | # endif | |
12ae5dfc | 38 | #endif |
760ac839 | 39 | |
6f9d8c32 | 40 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 41 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
14a5cf38 | 42 | /* |
71200d45 | 43 | * #define PerlIO FILE |
14a5cf38 | 44 | */ |
760ac839 LW |
45 | #endif |
46 | /* | |
6f9d8c32 | 47 | * This file provides those parts of PerlIO abstraction |
88b61e10 | 48 | * which are not #defined in perlio.h. |
6f9d8c32 | 49 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
50 | */ |
51 | ||
52 | #include "EXTERN.h" | |
864dbfa3 | 53 | #define PERL_IN_PERLIO_C |
760ac839 LW |
54 | #include "perl.h" |
55 | ||
32af7c23 CL |
56 | #ifdef PERL_IMPLICIT_CONTEXT |
57 | #undef dSYS | |
58 | #define dSYS dTHX | |
59 | #endif | |
60 | ||
0c4f7ff0 NIS |
61 | #include "XSUB.h" |
62 | ||
9cffb111 OS |
63 | #ifdef __Lynx__ |
64 | /* Missing proto on LynxOS */ | |
65 | int mkstemp(char*); | |
66 | #endif | |
67 | ||
1b7a0411 | 68 | /* Call the callback or PerlIOBase, and return failure. */ |
b32dd47e | 69 | #define Perl_PerlIO_or_Base(f, callback, base, failure, args) \ |
1b7a0411 | 70 | if (PerlIOValid(f)) { \ |
46c461b5 | 71 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab;\ |
1b7a0411 JH |
72 | if (tab && tab->callback) \ |
73 | return (*tab->callback) args; \ | |
74 | else \ | |
75 | return PerlIOBase_ ## base args; \ | |
76 | } \ | |
77 | else \ | |
78 | SETERRNO(EBADF, SS_IVCHAN); \ | |
79 | return failure | |
80 | ||
81 | /* Call the callback or fail, and return failure. */ | |
b32dd47e | 82 | #define Perl_PerlIO_or_fail(f, callback, failure, args) \ |
1b7a0411 | 83 | if (PerlIOValid(f)) { \ |
46c461b5 | 84 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab;\ |
1b7a0411 JH |
85 | if (tab && tab->callback) \ |
86 | return (*tab->callback) args; \ | |
87 | SETERRNO(EINVAL, LIB_INVARG); \ | |
88 | } \ | |
89 | else \ | |
90 | SETERRNO(EBADF, SS_IVCHAN); \ | |
91 | return failure | |
92 | ||
93 | /* Call the callback or PerlIOBase, and be void. */ | |
b32dd47e | 94 | #define Perl_PerlIO_or_Base_void(f, callback, base, args) \ |
1b7a0411 | 95 | if (PerlIOValid(f)) { \ |
46c461b5 | 96 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab;\ |
1b7a0411 JH |
97 | if (tab && tab->callback) \ |
98 | (*tab->callback) args; \ | |
99 | else \ | |
100 | PerlIOBase_ ## base args; \ | |
1b7a0411 JH |
101 | } \ |
102 | else \ | |
103 | SETERRNO(EBADF, SS_IVCHAN) | |
104 | ||
105 | /* Call the callback or fail, and be void. */ | |
b32dd47e | 106 | #define Perl_PerlIO_or_fail_void(f, callback, args) \ |
1b7a0411 | 107 | if (PerlIOValid(f)) { \ |
46c461b5 | 108 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab;\ |
1b7a0411 JH |
109 | if (tab && tab->callback) \ |
110 | (*tab->callback) args; \ | |
37725cdc NIS |
111 | else \ |
112 | SETERRNO(EINVAL, LIB_INVARG); \ | |
1b7a0411 JH |
113 | } \ |
114 | else \ | |
115 | SETERRNO(EBADF, SS_IVCHAN) | |
116 | ||
71ab4674 SP |
117 | #ifndef USE_SFIO |
118 | int | |
119 | perlsio_binmode(FILE *fp, int iotype, int mode) | |
120 | { | |
121 | /* | |
122 | * This used to be contents of do_binmode in doio.c | |
123 | */ | |
124 | #ifdef DOSISH | |
125 | # if defined(atarist) || defined(__MINT__) | |
126 | if (!fflush(fp)) { | |
127 | if (mode & O_BINARY) | |
128 | ((FILE *) fp)->_flag |= _IOBIN; | |
129 | else | |
130 | ((FILE *) fp)->_flag &= ~_IOBIN; | |
131 | return 1; | |
132 | } | |
133 | return 0; | |
134 | # else | |
135 | dTHX; | |
136 | #ifdef NETWARE | |
137 | if (PerlLIO_setmode(fp, mode) != -1) { | |
138 | #else | |
139 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { | |
140 | #endif | |
141 | # if defined(WIN32) && defined(__BORLANDC__) | |
142 | /* | |
143 | * The translation mode of the stream is maintained independent | |
144 | of | |
145 | * the translation mode of the fd in the Borland RTL (heavy | |
146 | * digging through their runtime sources reveal). User has to | |
147 | set | |
148 | * the mode explicitly for the stream (though they don't | |
149 | document | |
150 | * this anywhere). GSAR 97-5-24 | |
151 | */ | |
152 | fseek(fp, 0L, 0); | |
153 | if (mode & O_BINARY) | |
154 | fp->flags |= _F_BIN; | |
155 | else | |
156 | fp->flags &= ~_F_BIN; | |
157 | # endif | |
158 | return 1; | |
159 | } | |
160 | else | |
161 | return 0; | |
162 | # endif | |
163 | #else | |
164 | # if defined(USEMYBINMODE) | |
165 | dTHX; | |
166 | if (my_binmode(fp, iotype, mode) != FALSE) | |
167 | return 1; | |
168 | else | |
169 | return 0; | |
170 | # else | |
171 | PERL_UNUSED_ARG(fp); | |
172 | PERL_UNUSED_ARG(iotype); | |
173 | PERL_UNUSED_ARG(mode); | |
174 | return 1; | |
175 | # endif | |
176 | #endif | |
177 | } | |
178 | #endif /* sfio */ | |
179 | ||
06c7082d | 180 | #ifndef O_ACCMODE |
22569500 | 181 | #define O_ACCMODE 3 /* Assume traditional implementation */ |
06c7082d NIS |
182 | #endif |
183 | ||
184 | int | |
185 | PerlIO_intmode2str(int rawmode, char *mode, int *writing) | |
186 | { | |
de009b76 | 187 | const int result = rawmode & O_ACCMODE; |
06c7082d NIS |
188 | int ix = 0; |
189 | int ptype; | |
190 | switch (result) { | |
191 | case O_RDONLY: | |
192 | ptype = IoTYPE_RDONLY; | |
193 | break; | |
194 | case O_WRONLY: | |
195 | ptype = IoTYPE_WRONLY; | |
196 | break; | |
197 | case O_RDWR: | |
198 | default: | |
199 | ptype = IoTYPE_RDWR; | |
200 | break; | |
201 | } | |
202 | if (writing) | |
203 | *writing = (result != O_RDONLY); | |
204 | ||
205 | if (result == O_RDONLY) { | |
206 | mode[ix++] = 'r'; | |
207 | } | |
208 | #ifdef O_APPEND | |
209 | else if (rawmode & O_APPEND) { | |
210 | mode[ix++] = 'a'; | |
211 | if (result != O_WRONLY) | |
212 | mode[ix++] = '+'; | |
213 | } | |
214 | #endif | |
215 | else { | |
216 | if (result == O_WRONLY) | |
217 | mode[ix++] = 'w'; | |
218 | else { | |
219 | mode[ix++] = 'r'; | |
220 | mode[ix++] = '+'; | |
221 | } | |
222 | } | |
223 | if (rawmode & O_BINARY) | |
224 | mode[ix++] = 'b'; | |
225 | mode[ix] = '\0'; | |
226 | return ptype; | |
227 | } | |
228 | ||
eb73beca NIS |
229 | #ifndef PERLIO_LAYERS |
230 | int | |
231 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) | |
232 | { | |
6874a2de NIS |
233 | if (!names || !*names |
234 | || strEQ(names, ":crlf") | |
235 | || strEQ(names, ":raw") | |
236 | || strEQ(names, ":bytes") | |
237 | ) { | |
14a5cf38 JH |
238 | return 0; |
239 | } | |
240 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl", names); | |
241 | /* | |
71200d45 | 242 | * NOTREACHED |
14a5cf38 JH |
243 | */ |
244 | return -1; | |
eb73beca NIS |
245 | } |
246 | ||
13621cfb NIS |
247 | void |
248 | PerlIO_destruct(pTHX) | |
249 | { | |
250 | } | |
251 | ||
f5b9d040 NIS |
252 | int |
253 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) | |
254 | { | |
92bff44d | 255 | #ifdef USE_SFIO |
8772537c AL |
256 | PERL_UNUSED_ARG(iotype); |
257 | PERL_UNUSED_ARG(mode); | |
258 | PERL_UNUSED_ARG(names); | |
14a5cf38 | 259 | return 1; |
92bff44d | 260 | #else |
14a5cf38 | 261 | return perlsio_binmode(fp, iotype, mode); |
92bff44d | 262 | #endif |
f5b9d040 | 263 | } |
60382766 | 264 | |
e0fa5af2 | 265 | PerlIO * |
ecdeb87c | 266 | PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
e0fa5af2 | 267 | { |
a0fd4948 | 268 | #if defined(PERL_MICRO) || defined(__SYMBIAN32__) |
0553478e NIS |
269 | return NULL; |
270 | #else | |
271 | #ifdef PERL_IMPLICIT_SYS | |
22569500 | 272 | return PerlSIO_fdupopen(f); |
0553478e | 273 | #else |
30753f56 NIS |
274 | #ifdef WIN32 |
275 | return win32_fdupopen(f); | |
276 | #else | |
e0fa5af2 | 277 | if (f) { |
504618e9 | 278 | const int fd = PerlLIO_dup(PerlIO_fileno(f)); |
e0fa5af2 | 279 | if (fd >= 0) { |
06c7082d | 280 | char mode[8]; |
a5936e02 | 281 | #ifdef DJGPP |
dcda55fc AL |
282 | const int omode = djgpp_get_stream_mode(f); |
283 | #else | |
284 | const int omode = fcntl(fd, F_GETFL); | |
a5936e02 | 285 | #endif |
06c7082d | 286 | PerlIO_intmode2str(omode,mode,NULL); |
e0fa5af2 | 287 | /* the r+ is a hack */ |
06c7082d | 288 | return PerlIO_fdopen(fd, mode); |
e0fa5af2 NIS |
289 | } |
290 | return NULL; | |
291 | } | |
292 | else { | |
93189314 | 293 | SETERRNO(EBADF, SS_IVCHAN); |
e0fa5af2 | 294 | } |
7114a2d2 | 295 | #endif |
e0fa5af2 | 296 | return NULL; |
0553478e | 297 | #endif |
30753f56 | 298 | #endif |
e0fa5af2 NIS |
299 | } |
300 | ||
301 | ||
14a5cf38 | 302 | /* |
71200d45 | 303 | * De-mux PerlIO_openn() into fdopen, freopen and fopen type entries |
14a5cf38 | 304 | */ |
ee518936 NIS |
305 | |
306 | PerlIO * | |
14a5cf38 JH |
307 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, |
308 | int imode, int perm, PerlIO *old, int narg, SV **args) | |
309 | { | |
7cf31beb NIS |
310 | if (narg) { |
311 | if (narg > 1) { | |
3b8752bb | 312 | Perl_croak(aTHX_ "More than one argument to open"); |
7cf31beb | 313 | } |
14a5cf38 JH |
314 | if (*args == &PL_sv_undef) |
315 | return PerlIO_tmpfile(); | |
316 | else { | |
e62f0680 | 317 | const char *name = SvPV_nolen_const(*args); |
3b6c1aba | 318 | if (*mode == IoTYPE_NUMERIC) { |
14a5cf38 JH |
319 | fd = PerlLIO_open3(name, imode, perm); |
320 | if (fd >= 0) | |
de009b76 | 321 | return PerlIO_fdopen(fd, mode + 1); |
14a5cf38 JH |
322 | } |
323 | else if (old) { | |
324 | return PerlIO_reopen(name, mode, old); | |
325 | } | |
326 | else { | |
327 | return PerlIO_open(name, mode); | |
328 | } | |
329 | } | |
330 | } | |
331 | else { | |
332 | return PerlIO_fdopen(fd, (char *) mode); | |
333 | } | |
334 | return NULL; | |
ee518936 NIS |
335 | } |
336 | ||
0c4f7ff0 NIS |
337 | XS(XS_PerlIO__Layer__find) |
338 | { | |
14a5cf38 JH |
339 | dXSARGS; |
340 | if (items < 2) | |
341 | Perl_croak(aTHX_ "Usage class->find(name[,load])"); | |
342 | else { | |
dcda55fc | 343 | const char * const name = SvPV_nolen_const(ST(1)); |
14a5cf38 JH |
344 | ST(0) = (strEQ(name, "crlf") |
345 | || strEQ(name, "raw")) ? &PL_sv_yes : &PL_sv_undef; | |
346 | XSRETURN(1); | |
347 | } | |
0c4f7ff0 NIS |
348 | } |
349 | ||
350 | ||
351 | void | |
352 | Perl_boot_core_PerlIO(pTHX) | |
353 | { | |
14a5cf38 | 354 | newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__); |
0c4f7ff0 NIS |
355 | } |
356 | ||
ac27b0f5 NIS |
357 | #endif |
358 | ||
32e30700 | 359 | |
6f9d8c32 | 360 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
361 | |
362 | void | |
e8632036 | 363 | PerlIO_init(pTHX) |
760ac839 | 364 | { |
96a5add6 | 365 | PERL_UNUSED_CONTEXT; |
14a5cf38 JH |
366 | /* |
367 | * Does nothing (yet) except force this file to be included in perl | |
71200d45 | 368 | * binary. That allows this file to force inclusion of other functions |
14a5cf38 | 369 | * that may be required by loadable extensions e.g. for |
71200d45 | 370 | * FileHandle::tmpfile |
14a5cf38 | 371 | */ |
760ac839 LW |
372 | } |
373 | ||
33dcbb9a | 374 | #undef PerlIO_tmpfile |
375 | PerlIO * | |
8ac85365 | 376 | PerlIO_tmpfile(void) |
33dcbb9a | 377 | { |
14a5cf38 | 378 | return tmpfile(); |
33dcbb9a | 379 | } |
380 | ||
22569500 | 381 | #else /* PERLIO_IS_STDIO */ |
760ac839 LW |
382 | |
383 | #ifdef USE_SFIO | |
384 | ||
385 | #undef HAS_FSETPOS | |
386 | #undef HAS_FGETPOS | |
387 | ||
14a5cf38 JH |
388 | /* |
389 | * This section is just to make sure these functions get pulled in from | |
71200d45 | 390 | * libsfio.a |
14a5cf38 | 391 | */ |
760ac839 LW |
392 | |
393 | #undef PerlIO_tmpfile | |
394 | PerlIO * | |
c78749f2 | 395 | PerlIO_tmpfile(void) |
760ac839 | 396 | { |
14a5cf38 | 397 | return sftmp(0); |
760ac839 LW |
398 | } |
399 | ||
400 | void | |
e8632036 | 401 | PerlIO_init(pTHX) |
760ac839 | 402 | { |
96a5add6 | 403 | PERL_UNUSED_CONTEXT; |
14a5cf38 JH |
404 | /* |
405 | * Force this file to be included in perl binary. Which allows this | |
406 | * file to force inclusion of other functions that may be required by | |
71200d45 | 407 | * loadable extensions e.g. for FileHandle::tmpfile |
14a5cf38 | 408 | */ |
760ac839 | 409 | |
14a5cf38 | 410 | /* |
71200d45 | 411 | * Hack sfio does its own 'autoflush' on stdout in common cases. Flush |
14a5cf38 | 412 | * results in a lot of lseek()s to regular files and lot of small |
71200d45 | 413 | * writes to pipes. |
14a5cf38 JH |
414 | */ |
415 | sfset(sfstdout, SF_SHARE, 0); | |
760ac839 LW |
416 | } |
417 | ||
b9d6bf13 | 418 | /* This is not the reverse of PerlIO_exportFILE(), PerlIO_releaseFILE() is. */ |
92bff44d | 419 | PerlIO * |
4b069b44 | 420 | PerlIO_importFILE(FILE *stdio, const char *mode) |
92bff44d | 421 | { |
de009b76 | 422 | const int fd = fileno(stdio); |
4b069b44 | 423 | if (!mode || !*mode) { |
81428673 | 424 | mode = "r+"; |
4b069b44 NIS |
425 | } |
426 | return PerlIO_fdopen(fd, mode); | |
92bff44d NIS |
427 | } |
428 | ||
429 | FILE * | |
430 | PerlIO_findFILE(PerlIO *pio) | |
431 | { | |
de009b76 AL |
432 | const int fd = PerlIO_fileno(pio); |
433 | FILE * const f = fdopen(fd, "r+"); | |
14a5cf38 JH |
434 | PerlIO_flush(pio); |
435 | if (!f && errno == EINVAL) | |
436 | f = fdopen(fd, "w"); | |
437 | if (!f && errno == EINVAL) | |
438 | f = fdopen(fd, "r"); | |
439 | return f; | |
92bff44d NIS |
440 | } |
441 | ||
442 | ||
22569500 | 443 | #else /* USE_SFIO */ |
6f9d8c32 | 444 | /*======================================================================================*/ |
14a5cf38 | 445 | /* |
71200d45 | 446 | * Implement all the PerlIO interface ourselves. |
9e353e3b | 447 | */ |
760ac839 | 448 | |
76ced9ad NIS |
449 | #include "perliol.h" |
450 | ||
14a5cf38 JH |
451 | /* |
452 | * We _MUST_ have <unistd.h> if we are using lseek() and may have large | |
71200d45 | 453 | * files |
14a5cf38 | 454 | */ |
02f66e2f NIS |
455 | #ifdef I_UNISTD |
456 | #include <unistd.h> | |
457 | #endif | |
06da4f11 NIS |
458 | #ifdef HAS_MMAP |
459 | #include <sys/mman.h> | |
460 | #endif | |
461 | ||
6f9d8c32 | 462 | void |
14a5cf38 JH |
463 | PerlIO_debug(const char *fmt, ...) |
464 | { | |
14a5cf38 JH |
465 | va_list ap; |
466 | dSYS; | |
467 | va_start(ap, fmt); | |
27da23d5 | 468 | if (!PL_perlio_debug_fd && !PL_tainting && PL_uid == PL_euid && PL_gid == PL_egid) { |
dcda55fc | 469 | const char * const s = PerlEnv_getenv("PERLIO_DEBUG"); |
14a5cf38 | 470 | if (s && *s) |
27da23d5 | 471 | PL_perlio_debug_fd = PerlLIO_open3(s, O_WRONLY | O_CREAT | O_APPEND, 0666); |
14a5cf38 | 472 | else |
27da23d5 | 473 | PL_perlio_debug_fd = -1; |
14a5cf38 | 474 | } |
27da23d5 | 475 | if (PL_perlio_debug_fd > 0) { |
14a5cf38 | 476 | dTHX; |
70ace5da | 477 | #ifdef USE_ITHREADS |
dcda55fc | 478 | const char * const s = CopFILE(PL_curcop); |
70ace5da NIS |
479 | /* Use fixed buffer as sv_catpvf etc. needs SVs */ |
480 | char buffer[1024]; | |
dcda55fc | 481 | const STRLEN len = my_sprintf(buffer, "%.40s:%" IVdf " ", s ? s : "(none)", (IV) CopLINE(PL_curcop)); |
e80fed9d | 482 | # ifdef USE_VSNPRINTF |
ba1fe781 | 483 | const STRLEN len2 = vsnprintf(buffer+len, sizeof(buffer) - len, fmt, ap); |
e80fed9d | 484 | # else |
42d9b98d | 485 | const STRLEN len2 = vsprintf(buffer+len, fmt, ap); |
e80fed9d | 486 | # endif /* USE_VSNPRINTF */ |
42d9b98d | 487 | PerlLIO_write(PL_perlio_debug_fd, buffer, len + len2); |
70ace5da | 488 | #else |
dcda55fc AL |
489 | const char *s = CopFILE(PL_curcop); |
490 | STRLEN len; | |
396482e1 | 491 | SV * const sv = newSVpvs(""); |
dcda55fc | 492 | Perl_sv_catpvf(aTHX_ sv, "%s:%" IVdf " ", s ? s : "(none)", |
14a5cf38 JH |
493 | (IV) CopLINE(PL_curcop)); |
494 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); | |
495 | ||
b83604b4 | 496 | s = SvPV_const(sv, len); |
27da23d5 | 497 | PerlLIO_write(PL_perlio_debug_fd, s, len); |
14a5cf38 | 498 | SvREFCNT_dec(sv); |
70ace5da | 499 | #endif |
14a5cf38 JH |
500 | } |
501 | va_end(ap); | |
6f9d8c32 NIS |
502 | } |
503 | ||
9e353e3b NIS |
504 | /*--------------------------------------------------------------------------------------*/ |
505 | ||
14a5cf38 | 506 | /* |
71200d45 | 507 | * Inner level routines |
14a5cf38 | 508 | */ |
9e353e3b | 509 | |
14a5cf38 | 510 | /* |
71200d45 | 511 | * Table of pointers to the PerlIO structs (malloc'ed) |
14a5cf38 | 512 | */ |
05d1247b | 513 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 | 514 | |
760ac839 | 515 | PerlIO * |
5f1a76d0 | 516 | PerlIO_allocate(pTHX) |
6f9d8c32 | 517 | { |
97aff369 | 518 | dVAR; |
14a5cf38 | 519 | /* |
71200d45 | 520 | * Find a free slot in the table, allocating new table as necessary |
14a5cf38 JH |
521 | */ |
522 | PerlIO **last; | |
523 | PerlIO *f; | |
a1ea730d | 524 | last = &PL_perlio; |
14a5cf38 JH |
525 | while ((f = *last)) { |
526 | int i; | |
527 | last = (PerlIO **) (f); | |
528 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
529 | if (!*++f) { | |
530 | return f; | |
531 | } | |
532 | } | |
533 | } | |
a02a5408 | 534 | Newxz(f,PERLIO_TABLE_SIZE,PerlIO); |
14a5cf38 JH |
535 | if (!f) { |
536 | return NULL; | |
537 | } | |
538 | *last = f; | |
539 | return f + 1; | |
05d1247b NIS |
540 | } |
541 | ||
a1ea730d NIS |
542 | #undef PerlIO_fdupopen |
543 | PerlIO * | |
ecdeb87c | 544 | PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
a1ea730d | 545 | { |
04892f78 | 546 | if (PerlIOValid(f)) { |
de009b76 | 547 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
fe5a182c | 548 | PerlIO_debug("fdupopen f=%p param=%p\n",(void*)f,(void*)param); |
210e727c JH |
549 | if (tab && tab->Dup) |
550 | return (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX), f, param, flags); | |
37725cdc NIS |
551 | else { |
552 | return PerlIOBase_dup(aTHX_ PerlIO_allocate(aTHX), f, param, flags); | |
553 | } | |
a1ea730d | 554 | } |
210e727c JH |
555 | else |
556 | SETERRNO(EBADF, SS_IVCHAN); | |
557 | ||
558 | return NULL; | |
a1ea730d NIS |
559 | } |
560 | ||
561 | void | |
5f1a76d0 | 562 | PerlIO_cleantable(pTHX_ PerlIO **tablep) |
05d1247b | 563 | { |
dcda55fc | 564 | PerlIO * const table = *tablep; |
14a5cf38 JH |
565 | if (table) { |
566 | int i; | |
567 | PerlIO_cleantable(aTHX_(PerlIO **) & (table[0])); | |
568 | for (i = PERLIO_TABLE_SIZE - 1; i > 0; i--) { | |
dcda55fc | 569 | PerlIO * const f = table + i; |
14a5cf38 JH |
570 | if (*f) { |
571 | PerlIO_close(f); | |
572 | } | |
573 | } | |
3a1ee7e8 | 574 | Safefree(table); |
14a5cf38 | 575 | *tablep = NULL; |
05d1247b | 576 | } |
05d1247b NIS |
577 | } |
578 | ||
fcf2db38 NIS |
579 | |
580 | PerlIO_list_t * | |
3a1ee7e8 | 581 | PerlIO_list_alloc(pTHX) |
fcf2db38 | 582 | { |
14a5cf38 | 583 | PerlIO_list_t *list; |
96a5add6 | 584 | PERL_UNUSED_CONTEXT; |
a02a5408 | 585 | Newxz(list, 1, PerlIO_list_t); |
14a5cf38 JH |
586 | list->refcnt = 1; |
587 | return list; | |
fcf2db38 NIS |
588 | } |
589 | ||
590 | void | |
3a1ee7e8 | 591 | PerlIO_list_free(pTHX_ PerlIO_list_t *list) |
fcf2db38 | 592 | { |
14a5cf38 JH |
593 | if (list) { |
594 | if (--list->refcnt == 0) { | |
595 | if (list->array) { | |
14a5cf38 JH |
596 | IV i; |
597 | for (i = 0; i < list->cur; i++) { | |
598 | if (list->array[i].arg) | |
599 | SvREFCNT_dec(list->array[i].arg); | |
600 | } | |
601 | Safefree(list->array); | |
602 | } | |
603 | Safefree(list); | |
604 | } | |
605 | } | |
fcf2db38 NIS |
606 | } |
607 | ||
608 | void | |
3a1ee7e8 | 609 | PerlIO_list_push(pTHX_ PerlIO_list_t *list, PerlIO_funcs *funcs, SV *arg) |
14a5cf38 | 610 | { |
97aff369 | 611 | dVAR; |
334e202e | 612 | PerlIO_pair_t *p; |
b37c2d43 AL |
613 | PERL_UNUSED_CONTEXT; |
614 | ||
14a5cf38 JH |
615 | if (list->cur >= list->len) { |
616 | list->len += 8; | |
617 | if (list->array) | |
618 | Renew(list->array, list->len, PerlIO_pair_t); | |
619 | else | |
a02a5408 | 620 | Newx(list->array, list->len, PerlIO_pair_t); |
14a5cf38 JH |
621 | } |
622 | p = &(list->array[list->cur++]); | |
623 | p->funcs = funcs; | |
624 | if ((p->arg = arg)) { | |
f84c484e | 625 | SvREFCNT_inc_simple_void_NN(arg); |
14a5cf38 | 626 | } |
fcf2db38 NIS |
627 | } |
628 | ||
3a1ee7e8 NIS |
629 | PerlIO_list_t * |
630 | PerlIO_clone_list(pTHX_ PerlIO_list_t *proto, CLONE_PARAMS *param) | |
631 | { | |
b37c2d43 | 632 | PerlIO_list_t *list = NULL; |
694c95cf JH |
633 | if (proto) { |
634 | int i; | |
635 | list = PerlIO_list_alloc(aTHX); | |
636 | for (i=0; i < proto->cur; i++) { | |
a0714e2c | 637 | SV *arg = NULL; |
694c95cf JH |
638 | if (proto->array[i].arg) |
639 | arg = PerlIO_sv_dup(aTHX_ proto->array[i].arg,param); | |
640 | PerlIO_list_push(aTHX_ list, proto->array[i].funcs, arg); | |
641 | } | |
3a1ee7e8 NIS |
642 | } |
643 | return list; | |
644 | } | |
4a4a6116 | 645 | |
05d1247b | 646 | void |
3a1ee7e8 | 647 | PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param) |
9a6404c5 | 648 | { |
3aaf42a7 | 649 | #ifdef USE_ITHREADS |
3a1ee7e8 NIS |
650 | PerlIO **table = &proto->Iperlio; |
651 | PerlIO *f; | |
652 | PL_perlio = NULL; | |
653 | PL_known_layers = PerlIO_clone_list(aTHX_ proto->Iknown_layers, param); | |
654 | PL_def_layerlist = PerlIO_clone_list(aTHX_ proto->Idef_layerlist, param); | |
655 | PerlIO_allocate(aTHX); /* root slot is never used */ | |
a25429c6 | 656 | PerlIO_debug("Clone %p from %p\n",(void*)aTHX,(void*)proto); |
3a1ee7e8 NIS |
657 | while ((f = *table)) { |
658 | int i; | |
659 | table = (PerlIO **) (f++); | |
660 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
661 | if (*f) { | |
93a8090d | 662 | (void) fp_dup(f, 0, param); |
3a1ee7e8 NIS |
663 | } |
664 | f++; | |
665 | } | |
666 | } | |
1b6737cc | 667 | #else |
a25429c6 | 668 | PERL_UNUSED_CONTEXT; |
1b6737cc AL |
669 | PERL_UNUSED_ARG(proto); |
670 | PERL_UNUSED_ARG(param); | |
3aaf42a7 | 671 | #endif |
9a6404c5 DM |
672 | } |
673 | ||
674 | void | |
13621cfb NIS |
675 | PerlIO_destruct(pTHX) |
676 | { | |
97aff369 | 677 | dVAR; |
a1ea730d | 678 | PerlIO **table = &PL_perlio; |
14a5cf38 | 679 | PerlIO *f; |
694c95cf | 680 | #ifdef USE_ITHREADS |
a25429c6 | 681 | PerlIO_debug("Destruct %p\n",(void*)aTHX); |
694c95cf | 682 | #endif |
14a5cf38 JH |
683 | while ((f = *table)) { |
684 | int i; | |
685 | table = (PerlIO **) (f++); | |
686 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
687 | PerlIO *x = f; | |
dcda55fc | 688 | const PerlIOl *l; |
14a5cf38 JH |
689 | while ((l = *x)) { |
690 | if (l->tab->kind & PERLIO_K_DESTRUCT) { | |
691 | PerlIO_debug("Destruct popping %s\n", l->tab->name); | |
692 | PerlIO_flush(x); | |
693 | PerlIO_pop(aTHX_ x); | |
694 | } | |
695 | else { | |
696 | x = PerlIONext(x); | |
697 | } | |
698 | } | |
699 | f++; | |
700 | } | |
701 | } | |
13621cfb NIS |
702 | } |
703 | ||
704 | void | |
a999f61b | 705 | PerlIO_pop(pTHX_ PerlIO *f) |
760ac839 | 706 | { |
dcda55fc | 707 | const PerlIOl *l = *f; |
14a5cf38 | 708 | if (l) { |
fe5a182c | 709 | PerlIO_debug("PerlIO_pop f=%p %s\n", (void*)f, l->tab->name); |
14a5cf38 JH |
710 | if (l->tab->Popped) { |
711 | /* | |
712 | * If popped returns non-zero do not free its layer structure | |
713 | * it has either done so itself, or it is shared and still in | |
71200d45 | 714 | * use |
14a5cf38 | 715 | */ |
f62ce20a | 716 | if ((*l->tab->Popped) (aTHX_ f) != 0) |
14a5cf38 JH |
717 | return; |
718 | } | |
b47cad08 | 719 | *f = l->next; |
3a1ee7e8 | 720 | Safefree(l); |
a8c08ecd | 721 | } |
6f9d8c32 NIS |
722 | } |
723 | ||
39f7a870 JH |
724 | /* Return as an array the stack of layers on a filehandle. Note that |
725 | * the stack is returned top-first in the array, and there are three | |
726 | * times as many array elements as there are layers in the stack: the | |
727 | * first element of a layer triplet is the name, the second one is the | |
728 | * arguments, and the third one is the flags. */ | |
729 | ||
730 | AV * | |
731 | PerlIO_get_layers(pTHX_ PerlIO *f) | |
732 | { | |
97aff369 | 733 | dVAR; |
dcda55fc | 734 | AV * const av = newAV(); |
39f7a870 | 735 | |
dcda55fc AL |
736 | if (PerlIOValid(f)) { |
737 | PerlIOl *l = PerlIOBase(f); | |
738 | ||
739 | while (l) { | |
740 | SV * const name = l->tab && l->tab->name ? | |
741 | newSVpv(l->tab->name, 0) : &PL_sv_undef; | |
742 | SV * const arg = l->tab && l->tab->Getarg ? | |
743 | (*l->tab->Getarg)(aTHX_ &l, 0, 0) : &PL_sv_undef; | |
744 | av_push(av, name); | |
745 | av_push(av, arg); | |
746 | av_push(av, newSViv((IV)l->flags)); | |
747 | l = l->next; | |
748 | } | |
749 | } | |
39f7a870 | 750 | |
dcda55fc | 751 | return av; |
39f7a870 JH |
752 | } |
753 | ||
9e353e3b | 754 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 755 | /* |
71200d45 | 756 | * XS Interface for perl code |
14a5cf38 | 757 | */ |
9e353e3b | 758 | |
fcf2db38 | 759 | PerlIO_funcs * |
2edd7e44 | 760 | PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load) |
f3862f8b | 761 | { |
27da23d5 | 762 | dVAR; |
14a5cf38 JH |
763 | IV i; |
764 | if ((SSize_t) len <= 0) | |
765 | len = strlen(name); | |
3a1ee7e8 | 766 | for (i = 0; i < PL_known_layers->cur; i++) { |
46c461b5 | 767 | PerlIO_funcs * const f = PL_known_layers->array[i].funcs; |
a9f76400 | 768 | if (memEQ(f->name, name, len) && f->name[len] == 0) { |
fe5a182c | 769 | PerlIO_debug("%.*s => %p\n", (int) len, name, (void*)f); |
14a5cf38 JH |
770 | return f; |
771 | } | |
772 | } | |
3a1ee7e8 NIS |
773 | if (load && PL_subname && PL_def_layerlist |
774 | && PL_def_layerlist->cur >= 2) { | |
d7a09b41 SR |
775 | if (PL_in_load_module) { |
776 | Perl_croak(aTHX_ "Recursive call to Perl_load_module in PerlIO_find_layer"); | |
777 | return NULL; | |
778 | } else { | |
396482e1 | 779 | SV * const pkgsv = newSVpvs("PerlIO"); |
46c461b5 AL |
780 | SV * const layer = newSVpvn(name, len); |
781 | CV * const cv = get_cv("PerlIO::Layer::NoWarnings", FALSE); | |
782 | ENTER; | |
d7a09b41 | 783 | SAVEINT(PL_in_load_module); |
c9bca74a | 784 | if (cv) { |
9cfa90c0 | 785 | SAVEGENERICSV(PL_warnhook); |
b37c2d43 | 786 | PL_warnhook = (SV *) (SvREFCNT_inc_simple_NN(cv)); |
c9bca74a | 787 | } |
d7a09b41 SR |
788 | PL_in_load_module++; |
789 | /* | |
790 | * The two SVs are magically freed by load_module | |
791 | */ | |
a0714e2c | 792 | Perl_load_module(aTHX_ 0, pkgsv, NULL, layer, NULL); |
d7a09b41 SR |
793 | PL_in_load_module--; |
794 | LEAVE; | |
795 | return PerlIO_find_layer(aTHX_ name, len, 0); | |
796 | } | |
14a5cf38 JH |
797 | } |
798 | PerlIO_debug("Cannot find %.*s\n", (int) len, name); | |
799 | return NULL; | |
f3862f8b NIS |
800 | } |
801 | ||
2a1bc955 | 802 | #ifdef USE_ATTRIBUTES_FOR_PERLIO |
b13b2135 NIS |
803 | |
804 | static int | |
805 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
806 | { | |
14a5cf38 | 807 | if (SvROK(sv)) { |
dcda55fc AL |
808 | IO * const io = GvIOn((GV *) SvRV(sv)); |
809 | PerlIO * const ifp = IoIFP(io); | |
810 | PerlIO * const ofp = IoOFP(io); | |
14a5cf38 JH |
811 | Perl_warn(aTHX_ "set %" SVf " %p %p %p", sv, io, ifp, ofp); |
812 | } | |
813 | return 0; | |
b13b2135 NIS |
814 | } |
815 | ||
816 | static int | |
817 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
818 | { | |
14a5cf38 | 819 | if (SvROK(sv)) { |
dcda55fc AL |
820 | IO * const io = GvIOn((GV *) SvRV(sv)); |
821 | PerlIO * const ifp = IoIFP(io); | |
822 | PerlIO * const ofp = IoOFP(io); | |
14a5cf38 JH |
823 | Perl_warn(aTHX_ "get %" SVf " %p %p %p", sv, io, ifp, ofp); |
824 | } | |
825 | return 0; | |
b13b2135 NIS |
826 | } |
827 | ||
828 | static int | |
829 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
830 | { | |
14a5cf38 JH |
831 | Perl_warn(aTHX_ "clear %" SVf, sv); |
832 | return 0; | |
b13b2135 NIS |
833 | } |
834 | ||
835 | static int | |
836 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
837 | { | |
14a5cf38 JH |
838 | Perl_warn(aTHX_ "free %" SVf, sv); |
839 | return 0; | |
b13b2135 NIS |
840 | } |
841 | ||
842 | MGVTBL perlio_vtab = { | |
14a5cf38 JH |
843 | perlio_mg_get, |
844 | perlio_mg_set, | |
22569500 | 845 | NULL, /* len */ |
14a5cf38 JH |
846 | perlio_mg_clear, |
847 | perlio_mg_free | |
b13b2135 NIS |
848 | }; |
849 | ||
850 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
851 | { | |
14a5cf38 | 852 | dXSARGS; |
dcda55fc AL |
853 | SV * const sv = SvRV(ST(1)); |
854 | AV * const av = newAV(); | |
14a5cf38 JH |
855 | MAGIC *mg; |
856 | int count = 0; | |
857 | int i; | |
858 | sv_magic(sv, (SV *) av, PERL_MAGIC_ext, NULL, 0); | |
859 | SvRMAGICAL_off(sv); | |
860 | mg = mg_find(sv, PERL_MAGIC_ext); | |
861 | mg->mg_virtual = &perlio_vtab; | |
862 | mg_magical(sv); | |
863 | Perl_warn(aTHX_ "attrib %" SVf, sv); | |
864 | for (i = 2; i < items; i++) { | |
865 | STRLEN len; | |
dcda55fc AL |
866 | const char * const name = SvPV_const(ST(i), len); |
867 | SV * const layer = PerlIO_find_layer(aTHX_ name, len, 1); | |
14a5cf38 | 868 | if (layer) { |
b37c2d43 | 869 | av_push(av, SvREFCNT_inc_simple_NN(layer)); |
14a5cf38 JH |
870 | } |
871 | else { | |
872 | ST(count) = ST(i); | |
873 | count++; | |
874 | } | |
875 | } | |
876 | SvREFCNT_dec(av); | |
877 | XSRETURN(count); | |
878 | } | |
879 | ||
22569500 | 880 | #endif /* USE_ATTIBUTES_FOR_PERLIO */ |
2a1bc955 | 881 | |
e3f3bf95 NIS |
882 | SV * |
883 | PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab) | |
f3862f8b | 884 | { |
89529cee | 885 | HV * const stash = gv_stashpvs("PerlIO::Layer", TRUE); |
46c461b5 | 886 | SV * const sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))), stash); |
14a5cf38 | 887 | return sv; |
e3f3bf95 NIS |
888 | } |
889 | ||
5ca1d77f | 890 | XS(XS_PerlIO__Layer__NoWarnings) |
c9bca74a | 891 | { |
37725cdc | 892 | /* This is used as a %SIG{__WARN__} handler to supress warnings |
c9bca74a NIS |
893 | during loading of layers. |
894 | */ | |
97aff369 | 895 | dVAR; |
c9bca74a NIS |
896 | dXSARGS; |
897 | if (items) | |
e62f0680 | 898 | PerlIO_debug("warning:%s\n",SvPV_nolen_const(ST(0))); |
c9bca74a NIS |
899 | XSRETURN(0); |
900 | } | |
901 | ||
5ca1d77f | 902 | XS(XS_PerlIO__Layer__find) |
0c4f7ff0 | 903 | { |
97aff369 | 904 | dVAR; |
14a5cf38 JH |
905 | dXSARGS; |
906 | if (items < 2) | |
907 | Perl_croak(aTHX_ "Usage class->find(name[,load])"); | |
908 | else { | |
de009b76 | 909 | STRLEN len; |
46c461b5 | 910 | const char * const name = SvPV_const(ST(1), len); |
de009b76 | 911 | const bool load = (items > 2) ? SvTRUE(ST(2)) : 0; |
46c461b5 | 912 | PerlIO_funcs * const layer = PerlIO_find_layer(aTHX_ name, len, load); |
14a5cf38 JH |
913 | ST(0) = |
914 | (layer) ? sv_2mortal(PerlIO_tab_sv(aTHX_ layer)) : | |
915 | &PL_sv_undef; | |
916 | XSRETURN(1); | |
917 | } | |
0c4f7ff0 NIS |
918 | } |
919 | ||
e3f3bf95 NIS |
920 | void |
921 | PerlIO_define_layer(pTHX_ PerlIO_funcs *tab) | |
922 | { | |
97aff369 | 923 | dVAR; |
3a1ee7e8 NIS |
924 | if (!PL_known_layers) |
925 | PL_known_layers = PerlIO_list_alloc(aTHX); | |
a0714e2c | 926 | PerlIO_list_push(aTHX_ PL_known_layers, tab, NULL); |
fe5a182c | 927 | PerlIO_debug("define %s %p\n", tab->name, (void*)tab); |
f3862f8b NIS |
928 | } |
929 | ||
1141d9f8 | 930 | int |
fcf2db38 | 931 | PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names) |
1141d9f8 | 932 | { |
97aff369 | 933 | dVAR; |
14a5cf38 JH |
934 | if (names) { |
935 | const char *s = names; | |
936 | while (*s) { | |
937 | while (isSPACE(*s) || *s == ':') | |
938 | s++; | |
939 | if (*s) { | |
940 | STRLEN llen = 0; | |
941 | const char *e = s; | |
bd61b366 | 942 | const char *as = NULL; |
14a5cf38 JH |
943 | STRLEN alen = 0; |
944 | if (!isIDFIRST(*s)) { | |
945 | /* | |
946 | * Message is consistent with how attribute lists are | |
947 | * passed. Even though this means "foo : : bar" is | |
71200d45 | 948 | * seen as an invalid separator character. |
14a5cf38 | 949 | */ |
de009b76 | 950 | const char q = ((*s == '\'') ? '"' : '\''); |
99ef548b | 951 | if (ckWARN(WARN_LAYER)) |
22569500 | 952 | Perl_warner(aTHX_ packWARN(WARN_LAYER), |
b4581f09 | 953 | "Invalid separator character %c%c%c in PerlIO layer specification %s", |
1e616cf5 | 954 | q, *s, q, s); |
93189314 | 955 | SETERRNO(EINVAL, LIB_INVARG); |
14a5cf38 JH |
956 | return -1; |
957 | } | |
958 | do { | |
959 | e++; | |
960 | } while (isALNUM(*e)); | |
961 | llen = e - s; | |
962 | if (*e == '(') { | |
963 | int nesting = 1; | |
964 | as = ++e; | |
965 | while (nesting) { | |
966 | switch (*e++) { | |
967 | case ')': | |
968 | if (--nesting == 0) | |
969 | alen = (e - 1) - as; | |
970 | break; | |
971 | case '(': | |
972 | ++nesting; | |
973 | break; | |
974 | case '\\': | |
975 | /* | |
976 | * It's a nul terminated string, not allowed | |
977 | * to \ the terminating null. Anything other | |
71200d45 | 978 | * character is passed over. |
14a5cf38 JH |
979 | */ |
980 | if (*e++) { | |
981 | break; | |
982 | } | |
983 | /* | |
71200d45 | 984 | * Drop through |
14a5cf38 JH |
985 | */ |
986 | case '\0': | |
987 | e--; | |
22569500 NIS |
988 | if (ckWARN(WARN_LAYER)) |
989 | Perl_warner(aTHX_ packWARN(WARN_LAYER), | |
b4581f09 | 990 | "Argument list not closed for PerlIO layer \"%.*s\"", |
14a5cf38 JH |
991 | (int) (e - s), s); |
992 | return -1; | |
993 | default: | |
994 | /* | |
71200d45 | 995 | * boring. |
14a5cf38 JH |
996 | */ |
997 | break; | |
998 | } | |
999 | } | |
1000 | } | |
1001 | if (e > s) { | |
46c461b5 | 1002 | PerlIO_funcs * const layer = |
14a5cf38 JH |
1003 | PerlIO_find_layer(aTHX_ s, llen, 1); |
1004 | if (layer) { | |
3a1ee7e8 | 1005 | PerlIO_list_push(aTHX_ av, layer, |
14a5cf38 JH |
1006 | (as) ? newSVpvn(as, |
1007 | alen) : | |
1008 | &PL_sv_undef); | |
1009 | } | |
1010 | else { | |
041457d9 | 1011 | if (ckWARN(WARN_LAYER)) |
b4581f09 | 1012 | Perl_warner(aTHX_ packWARN(WARN_LAYER), "Unknown PerlIO layer \"%.*s\"", |
14a5cf38 JH |
1013 | (int) llen, s); |
1014 | return -1; | |
1015 | } | |
1016 | } | |
1017 | s = e; | |
1018 | } | |
1019 | } | |
1020 | } | |
1021 | return 0; | |
1141d9f8 NIS |
1022 | } |
1023 | ||
dfebf958 | 1024 | void |
fcf2db38 | 1025 | PerlIO_default_buffer(pTHX_ PerlIO_list_t *av) |
dfebf958 | 1026 | { |
97aff369 | 1027 | dVAR; |
27da23d5 | 1028 | PERLIO_FUNCS_DECL(*tab) = &PerlIO_perlio; |
35990314 | 1029 | #ifdef PERLIO_USING_CRLF |
6ce75a77 | 1030 | tab = &PerlIO_crlf; |
846be114 | 1031 | #else |
6ce75a77 | 1032 | if (PerlIO_stdio.Set_ptrcnt) |
22569500 | 1033 | tab = &PerlIO_stdio; |
846be114 | 1034 | #endif |
14a5cf38 | 1035 | PerlIO_debug("Pushing %s\n", tab->name); |
3a1ee7e8 | 1036 | PerlIO_list_push(aTHX_ av, PerlIO_find_layer(aTHX_ tab->name, 0, 0), |
14a5cf38 | 1037 | &PL_sv_undef); |
dfebf958 NIS |
1038 | } |
1039 | ||
e3f3bf95 | 1040 | SV * |
14a5cf38 | 1041 | PerlIO_arg_fetch(PerlIO_list_t *av, IV n) |
e3f3bf95 | 1042 | { |
14a5cf38 | 1043 | return av->array[n].arg; |
e3f3bf95 NIS |
1044 | } |
1045 | ||
f3862f8b | 1046 | PerlIO_funcs * |
14a5cf38 | 1047 | PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av, IV n, PerlIO_funcs *def) |
f3862f8b | 1048 | { |
14a5cf38 JH |
1049 | if (n >= 0 && n < av->cur) { |
1050 | PerlIO_debug("Layer %" IVdf " is %s\n", n, | |
1051 | av->array[n].funcs->name); | |
1052 | return av->array[n].funcs; | |
1053 | } | |
1054 | if (!def) | |
1055 | Perl_croak(aTHX_ "panic: PerlIO layer array corrupt"); | |
1056 | return def; | |
e3f3bf95 NIS |
1057 | } |
1058 | ||
4ec2216f NIS |
1059 | IV |
1060 | PerlIOPop_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) | |
1061 | { | |
8772537c AL |
1062 | PERL_UNUSED_ARG(mode); |
1063 | PERL_UNUSED_ARG(arg); | |
1064 | PERL_UNUSED_ARG(tab); | |
4ec2216f NIS |
1065 | if (PerlIOValid(f)) { |
1066 | PerlIO_flush(f); | |
1067 | PerlIO_pop(aTHX_ f); | |
1068 | return 0; | |
1069 | } | |
1070 | return -1; | |
1071 | } | |
1072 | ||
27da23d5 | 1073 | PERLIO_FUNCS_DECL(PerlIO_remove) = { |
4ec2216f NIS |
1074 | sizeof(PerlIO_funcs), |
1075 | "pop", | |
1076 | 0, | |
1077 | PERLIO_K_DUMMY | PERLIO_K_UTF8, | |
1078 | PerlIOPop_pushed, | |
1079 | NULL, | |
1080 | NULL, | |
1081 | NULL, | |
1082 | NULL, | |
1083 | NULL, | |
1084 | NULL, | |
1085 | NULL, | |
1086 | NULL, | |
1087 | NULL, | |
1088 | NULL, | |
de009b76 AL |
1089 | NULL, |
1090 | NULL, | |
4ec2216f NIS |
1091 | NULL, /* flush */ |
1092 | NULL, /* fill */ | |
1093 | NULL, | |
1094 | NULL, | |
1095 | NULL, | |
1096 | NULL, | |
1097 | NULL, /* get_base */ | |
1098 | NULL, /* get_bufsiz */ | |
1099 | NULL, /* get_ptr */ | |
1100 | NULL, /* get_cnt */ | |
1101 | NULL, /* set_ptrcnt */ | |
1102 | }; | |
1103 | ||
fcf2db38 | 1104 | PerlIO_list_t * |
e3f3bf95 NIS |
1105 | PerlIO_default_layers(pTHX) |
1106 | { | |
97aff369 | 1107 | dVAR; |
3a1ee7e8 | 1108 | if (!PL_def_layerlist) { |
bd61b366 | 1109 | const char * const s = (PL_tainting) ? NULL : PerlEnv_getenv("PERLIO"); |
27da23d5 | 1110 | PERLIO_FUNCS_DECL(*osLayer) = &PerlIO_unix; |
3a1ee7e8 | 1111 | PL_def_layerlist = PerlIO_list_alloc(aTHX); |
27da23d5 | 1112 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_unix)); |
979e2c82 | 1113 | #if defined(WIN32) |
27da23d5 | 1114 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_win32)); |
2f8118af | 1115 | #if 0 |
14a5cf38 | 1116 | osLayer = &PerlIO_win32; |
0c4128ad | 1117 | #endif |
2f8118af | 1118 | #endif |
27da23d5 JH |
1119 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_raw)); |
1120 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_perlio)); | |
1121 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_stdio)); | |
1122 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_crlf)); | |
06da4f11 | 1123 | #ifdef HAS_MMAP |
27da23d5 | 1124 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_mmap)); |
06da4f11 | 1125 | #endif |
27da23d5 JH |
1126 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_utf8)); |
1127 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_remove)); | |
1128 | PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_byte)); | |
3a1ee7e8 | 1129 | PerlIO_list_push(aTHX_ PL_def_layerlist, |
14a5cf38 JH |
1130 | PerlIO_find_layer(aTHX_ osLayer->name, 0, 0), |
1131 | &PL_sv_undef); | |
1132 | if (s) { | |
3a1ee7e8 | 1133 | PerlIO_parse_layers(aTHX_ PL_def_layerlist, s); |
14a5cf38 JH |
1134 | } |
1135 | else { | |
3a1ee7e8 | 1136 | PerlIO_default_buffer(aTHX_ PL_def_layerlist); |
14a5cf38 | 1137 | } |
1141d9f8 | 1138 | } |
3a1ee7e8 NIS |
1139 | if (PL_def_layerlist->cur < 2) { |
1140 | PerlIO_default_buffer(aTHX_ PL_def_layerlist); | |
f3862f8b | 1141 | } |
3a1ee7e8 | 1142 | return PL_def_layerlist; |
e3f3bf95 NIS |
1143 | } |
1144 | ||
0c4f7ff0 NIS |
1145 | void |
1146 | Perl_boot_core_PerlIO(pTHX) | |
1147 | { | |
1148 | #ifdef USE_ATTRIBUTES_FOR_PERLIO | |
14a5cf38 JH |
1149 | newXS("io::MODIFY_SCALAR_ATTRIBUTES", XS_io_MODIFY_SCALAR_ATTRIBUTES, |
1150 | __FILE__); | |
0c4f7ff0 | 1151 | #endif |
14a5cf38 | 1152 | newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__); |
c9bca74a | 1153 | newXS("PerlIO::Layer::NoWarnings", XS_PerlIO__Layer__NoWarnings, __FILE__); |
0c4f7ff0 | 1154 | } |
e3f3bf95 NIS |
1155 | |
1156 | PerlIO_funcs * | |
1157 | PerlIO_default_layer(pTHX_ I32 n) | |
1158 | { | |
97aff369 | 1159 | dVAR; |
46c461b5 | 1160 | PerlIO_list_t * const av = PerlIO_default_layers(aTHX); |
14a5cf38 JH |
1161 | if (n < 0) |
1162 | n += av->cur; | |
27da23d5 | 1163 | return PerlIO_layer_fetch(aTHX_ av, n, PERLIO_FUNCS_CAST(&PerlIO_stdio)); |
f3862f8b NIS |
1164 | } |
1165 | ||
a999f61b NIS |
1166 | #define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1) |
1167 | #define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0) | |
60382766 NIS |
1168 | |
1169 | void | |
1141d9f8 | 1170 | PerlIO_stdstreams(pTHX) |
60382766 | 1171 | { |
97aff369 | 1172 | dVAR; |
a1ea730d | 1173 | if (!PL_perlio) { |
14a5cf38 JH |
1174 | PerlIO_allocate(aTHX); |
1175 | PerlIO_fdopen(0, "Ir" PERLIO_STDTEXT); | |
1176 | PerlIO_fdopen(1, "Iw" PERLIO_STDTEXT); | |
1177 | PerlIO_fdopen(2, "Iw" PERLIO_STDTEXT); | |
1178 | } | |
60382766 NIS |
1179 | } |
1180 | ||
1181 | PerlIO * | |
27da23d5 | 1182 | PerlIO_push(pTHX_ PerlIO *f, PERLIO_FUNCS_DECL(*tab), const char *mode, SV *arg) |
14a5cf38 | 1183 | { |
2dc2558e NIS |
1184 | if (tab->fsize != sizeof(PerlIO_funcs)) { |
1185 | mismatch: | |
1186 | Perl_croak(aTHX_ "Layer does not match this perl"); | |
1187 | } | |
1188 | if (tab->size) { | |
b464bac0 | 1189 | PerlIOl *l; |
2dc2558e NIS |
1190 | if (tab->size < sizeof(PerlIOl)) { |
1191 | goto mismatch; | |
1192 | } | |
1193 | /* Real layer with a data area */ | |
002e75cf JH |
1194 | if (f) { |
1195 | char *temp; | |
1196 | Newxz(temp, tab->size, char); | |
1197 | l = (PerlIOl*)temp; | |
1198 | if (l) { | |
1199 | l->next = *f; | |
1200 | l->tab = (PerlIO_funcs*) tab; | |
1201 | *f = l; | |
1202 | PerlIO_debug("PerlIO_push f=%p %s %s %p\n", | |
1203 | (void*)f, tab->name, | |
1204 | (mode) ? mode : "(Null)", (void*)arg); | |
1205 | if (*l->tab->Pushed && | |
1206 | (*l->tab->Pushed) | |
1207 | (aTHX_ f, mode, arg, (PerlIO_funcs*) tab) != 0) { | |
1208 | PerlIO_pop(aTHX_ f); | |
1209 | return NULL; | |
1210 | } | |
2dc2558e | 1211 | } |
002e75cf JH |
1212 | else |
1213 | return NULL; | |
2dc2558e NIS |
1214 | } |
1215 | } | |
1216 | else if (f) { | |
1217 | /* Pseudo-layer where push does its own stack adjust */ | |
00f51856 NIS |
1218 | PerlIO_debug("PerlIO_push f=%p %s %s %p\n", (void*)f, tab->name, |
1219 | (mode) ? mode : "(Null)", (void*)arg); | |
210e727c | 1220 | if (tab->Pushed && |
27da23d5 | 1221 | (*tab->Pushed) (aTHX_ f, mode, arg, (PerlIO_funcs*) tab) != 0) { |
210e727c | 1222 | return NULL; |
14a5cf38 JH |
1223 | } |
1224 | } | |
1225 | return f; | |
60382766 NIS |
1226 | } |
1227 | ||
dfebf958 | 1228 | IV |
86e05cf2 NIS |
1229 | PerlIOBase_binmode(pTHX_ PerlIO *f) |
1230 | { | |
1231 | if (PerlIOValid(f)) { | |
1232 | /* Is layer suitable for raw stream ? */ | |
1233 | if (PerlIOBase(f)->tab->kind & PERLIO_K_RAW) { | |
1234 | /* Yes - turn off UTF-8-ness, to undo UTF-8 locale effects */ | |
1235 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
1236 | } | |
1237 | else { | |
1238 | /* Not suitable - pop it */ | |
1239 | PerlIO_pop(aTHX_ f); | |
1240 | } | |
1241 | return 0; | |
1242 | } | |
1243 | return -1; | |
1244 | } | |
1245 | ||
1246 | IV | |
2dc2558e | 1247 | PerlIORaw_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
dfebf958 | 1248 | { |
8772537c AL |
1249 | PERL_UNUSED_ARG(mode); |
1250 | PERL_UNUSED_ARG(arg); | |
1251 | PERL_UNUSED_ARG(tab); | |
86e05cf2 | 1252 | |
04892f78 | 1253 | if (PerlIOValid(f)) { |
86e05cf2 | 1254 | PerlIO *t; |
de009b76 | 1255 | const PerlIOl *l; |
14a5cf38 | 1256 | PerlIO_flush(f); |
86e05cf2 NIS |
1257 | /* |
1258 | * Strip all layers that are not suitable for a raw stream | |
1259 | */ | |
1260 | t = f; | |
1261 | while (t && (l = *t)) { | |
1262 | if (l->tab->Binmode) { | |
1263 | /* Has a handler - normal case */ | |
1264 | if ((*l->tab->Binmode)(aTHX_ f) == 0) { | |
1265 | if (*t == l) { | |
1266 | /* Layer still there - move down a layer */ | |
1267 | t = PerlIONext(t); | |
1268 | } | |
1269 | } | |
1270 | else { | |
1271 | return -1; | |
1272 | } | |
14a5cf38 JH |
1273 | } |
1274 | else { | |
86e05cf2 NIS |
1275 | /* No handler - pop it */ |
1276 | PerlIO_pop(aTHX_ t); | |
14a5cf38 JH |
1277 | } |
1278 | } | |
86e05cf2 NIS |
1279 | if (PerlIOValid(f)) { |
1280 | PerlIO_debug(":raw f=%p :%s\n", (void*)f, PerlIOBase(f)->tab->name); | |
1281 | return 0; | |
1282 | } | |
14a5cf38 JH |
1283 | } |
1284 | return -1; | |
dfebf958 NIS |
1285 | } |
1286 | ||
ac27b0f5 | 1287 | int |
14a5cf38 | 1288 | PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode, |
d9dac8cd | 1289 | PerlIO_list_t *layers, IV n, IV max) |
14a5cf38 | 1290 | { |
14a5cf38 JH |
1291 | int code = 0; |
1292 | while (n < max) { | |
8772537c | 1293 | PerlIO_funcs * const tab = PerlIO_layer_fetch(aTHX_ layers, n, NULL); |
14a5cf38 JH |
1294 | if (tab) { |
1295 | if (!PerlIO_push(aTHX_ f, tab, mode, PerlIOArg)) { | |
1296 | code = -1; | |
1297 | break; | |
1298 | } | |
1299 | } | |
1300 | n++; | |
1301 | } | |
1302 | return code; | |
e3f3bf95 NIS |
1303 | } |
1304 | ||
1305 | int | |
ac27b0f5 NIS |
1306 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
1307 | { | |
14a5cf38 | 1308 | int code = 0; |
53f1b6d2 | 1309 | if (f && names) { |
8772537c | 1310 | PerlIO_list_t * const layers = PerlIO_list_alloc(aTHX); |
14a5cf38 JH |
1311 | code = PerlIO_parse_layers(aTHX_ layers, names); |
1312 | if (code == 0) { | |
d9dac8cd | 1313 | code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0, layers->cur); |
14a5cf38 | 1314 | } |
3a1ee7e8 | 1315 | PerlIO_list_free(aTHX_ layers); |
ac27b0f5 | 1316 | } |
14a5cf38 | 1317 | return code; |
ac27b0f5 NIS |
1318 | } |
1319 | ||
f3862f8b | 1320 | |
60382766 | 1321 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 1322 | /* |
71200d45 | 1323 | * Given the abstraction above the public API functions |
14a5cf38 | 1324 | */ |
60382766 NIS |
1325 | |
1326 | int | |
f5b9d040 | 1327 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad | 1328 | { |
68b5363f PD |
1329 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", (void*)f, |
1330 | (PerlIOBase(f)) ? PerlIOBase(f)->tab->name : "(Null)", | |
1331 | iotype, mode, (names) ? names : "(Null)"); | |
1332 | ||
03c0554d NIS |
1333 | if (names) { |
1334 | /* Do not flush etc. if (e.g.) switching encodings. | |
1335 | if a pushed layer knows it needs to flush lower layers | |
1336 | (for example :unix which is never going to call them) | |
1337 | it can do the flush when it is pushed. | |
1338 | */ | |
1339 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; | |
1340 | } | |
1341 | else { | |
86e05cf2 | 1342 | /* Fake 5.6 legacy of using this call to turn ON O_TEXT */ |
35990314 | 1343 | #ifdef PERLIO_USING_CRLF |
03c0554d NIS |
1344 | /* Legacy binmode only has meaning if O_TEXT has a value distinct from |
1345 | O_BINARY so we can look for it in mode. | |
1346 | */ | |
1347 | if (!(mode & O_BINARY)) { | |
1348 | /* Text mode */ | |
86e05cf2 NIS |
1349 | /* FIXME?: Looking down the layer stack seems wrong, |
1350 | but is a way of reaching past (say) an encoding layer | |
1351 | to flip CRLF-ness of the layer(s) below | |
1352 | */ | |
03c0554d NIS |
1353 | while (*f) { |
1354 | /* Perhaps we should turn on bottom-most aware layer | |
1355 | e.g. Ilya's idea that UNIX TTY could serve | |
1356 | */ | |
1357 | if (PerlIOBase(f)->tab->kind & PERLIO_K_CANCRLF) { | |
1358 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) { | |
1359 | /* Not in text mode - flush any pending stuff and flip it */ | |
1360 | PerlIO_flush(f); | |
1361 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
1362 | } | |
1363 | /* Only need to turn it on in one layer so we are done */ | |
1364 | return TRUE; | |
ed53a2bb | 1365 | } |
03c0554d | 1366 | f = PerlIONext(f); |
14a5cf38 | 1367 | } |
03c0554d NIS |
1368 | /* Not finding a CRLF aware layer presumably means we are binary |
1369 | which is not what was requested - so we failed | |
1370 | We _could_ push :crlf layer but so could caller | |
1371 | */ | |
1372 | return FALSE; | |
14a5cf38 | 1373 | } |
6ce75a77 | 1374 | #endif |
86e05cf2 NIS |
1375 | /* Legacy binmode is now _defined_ as being equivalent to pushing :raw |
1376 | So code that used to be here is now in PerlIORaw_pushed(). | |
03c0554d | 1377 | */ |
a0714e2c | 1378 | return PerlIO_push(aTHX_ f, PERLIO_FUNCS_CAST(&PerlIO_raw), NULL, NULL) ? TRUE : FALSE; |
14a5cf38 | 1379 | } |
f5b9d040 NIS |
1380 | } |
1381 | ||
f5b9d040 | 1382 | int |
e87a358a | 1383 | PerlIO__close(pTHX_ PerlIO *f) |
f5b9d040 | 1384 | { |
37725cdc | 1385 | if (PerlIOValid(f)) { |
46c461b5 | 1386 | PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
37725cdc NIS |
1387 | if (tab && tab->Close) |
1388 | return (*tab->Close)(aTHX_ f); | |
1389 | else | |
1390 | return PerlIOBase_close(aTHX_ f); | |
1391 | } | |
14a5cf38 | 1392 | else { |
93189314 | 1393 | SETERRNO(EBADF, SS_IVCHAN); |
14a5cf38 JH |
1394 | return -1; |
1395 | } | |
76ced9ad NIS |
1396 | } |
1397 | ||
b931b1d9 | 1398 | int |
e87a358a | 1399 | Perl_PerlIO_close(pTHX_ PerlIO *f) |
b931b1d9 | 1400 | { |
de009b76 | 1401 | const int code = PerlIO__close(aTHX_ f); |
37725cdc NIS |
1402 | while (PerlIOValid(f)) { |
1403 | PerlIO_pop(aTHX_ f); | |
f6c77cf1 | 1404 | } |
14a5cf38 | 1405 | return code; |
b931b1d9 NIS |
1406 | } |
1407 | ||
b931b1d9 | 1408 | int |
e87a358a | 1409 | Perl_PerlIO_fileno(pTHX_ PerlIO *f) |
b931b1d9 | 1410 | { |
97aff369 | 1411 | dVAR; |
b32dd47e | 1412 | Perl_PerlIO_or_Base(f, Fileno, fileno, -1, (aTHX_ f)); |
b931b1d9 NIS |
1413 | } |
1414 | ||
1141d9f8 NIS |
1415 | static const char * |
1416 | PerlIO_context_layers(pTHX_ const char *mode) | |
1417 | { | |
97aff369 | 1418 | dVAR; |
14a5cf38 JH |
1419 | const char *type = NULL; |
1420 | /* | |
71200d45 | 1421 | * Need to supply default layer info from open.pm |
14a5cf38 JH |
1422 | */ |
1423 | if (PL_curcop) { | |
dcda55fc | 1424 | SV * const layers = PL_curcop->cop_io; |
14a5cf38 JH |
1425 | if (layers) { |
1426 | STRLEN len; | |
b83604b4 | 1427 | type = SvPV_const(layers, len); |
14a5cf38 JH |
1428 | if (type && mode[0] != 'r') { |
1429 | /* | |
71200d45 | 1430 | * Skip to write part |
14a5cf38 | 1431 | */ |
dcda55fc | 1432 | const char * const s = strchr(type, 0); |
eb160463 | 1433 | if (s && (STRLEN)(s - type) < len) { |
14a5cf38 JH |
1434 | type = s + 1; |
1435 | } | |
1436 | } | |
1437 | } | |
1438 | } | |
1439 | return type; | |
1141d9f8 NIS |
1440 | } |
1441 | ||
fcf2db38 | 1442 | static PerlIO_funcs * |
2edd7e44 NIS |
1443 | PerlIO_layer_from_ref(pTHX_ SV *sv) |
1444 | { | |
97aff369 | 1445 | dVAR; |
14a5cf38 | 1446 | /* |
71200d45 | 1447 | * For any scalar type load the handler which is bundled with perl |
14a5cf38 JH |
1448 | */ |
1449 | if (SvTYPE(sv) < SVt_PVAV) | |
6a245ed1 | 1450 | return PerlIO_find_layer(aTHX_ STR_WITH_LEN("scalar"), 1); |
14a5cf38 JH |
1451 | |
1452 | /* | |
71200d45 | 1453 | * For other types allow if layer is known but don't try and load it |
14a5cf38 JH |
1454 | */ |
1455 | switch (SvTYPE(sv)) { | |
1456 | case SVt_PVAV: | |
6a245ed1 | 1457 | return PerlIO_find_layer(aTHX_ STR_WITH_LEN("Array"), 0); |
14a5cf38 | 1458 | case SVt_PVHV: |
6a245ed1 | 1459 | return PerlIO_find_layer(aTHX_ STR_WITH_LEN("Hash"), 0); |
14a5cf38 | 1460 | case SVt_PVCV: |
6a245ed1 | 1461 | return PerlIO_find_layer(aTHX_ STR_WITH_LEN("Code"), 0); |
14a5cf38 | 1462 | case SVt_PVGV: |
6a245ed1 | 1463 | return PerlIO_find_layer(aTHX_ STR_WITH_LEN("Glob"), 0); |
14a5cf38 JH |
1464 | } |
1465 | return NULL; | |
2edd7e44 NIS |
1466 | } |
1467 | ||
fcf2db38 | 1468 | PerlIO_list_t * |
14a5cf38 JH |
1469 | PerlIO_resolve_layers(pTHX_ const char *layers, |
1470 | const char *mode, int narg, SV **args) | |
1471 | { | |
97aff369 | 1472 | dVAR; |
14a5cf38 JH |
1473 | PerlIO_list_t *def = PerlIO_default_layers(aTHX); |
1474 | int incdef = 1; | |
a1ea730d | 1475 | if (!PL_perlio) |
14a5cf38 JH |
1476 | PerlIO_stdstreams(aTHX); |
1477 | if (narg) { | |
dcda55fc | 1478 | SV * const arg = *args; |
14a5cf38 | 1479 | /* |
71200d45 NIS |
1480 | * If it is a reference but not an object see if we have a handler |
1481 | * for it | |
14a5cf38 JH |
1482 | */ |
1483 | if (SvROK(arg) && !sv_isobject(arg)) { | |
46c461b5 | 1484 | PerlIO_funcs * const handler = PerlIO_layer_from_ref(aTHX_ SvRV(arg)); |
14a5cf38 | 1485 | if (handler) { |
3a1ee7e8 NIS |
1486 | def = PerlIO_list_alloc(aTHX); |
1487 | PerlIO_list_push(aTHX_ def, handler, &PL_sv_undef); | |
14a5cf38 JH |
1488 | incdef = 0; |
1489 | } | |
1490 | /* | |
e934609f | 1491 | * Don't fail if handler cannot be found :via(...) etc. may do |
14a5cf38 | 1492 | * something sensible else we will just stringfy and open |
71200d45 | 1493 | * resulting string. |
14a5cf38 JH |
1494 | */ |
1495 | } | |
1496 | } | |
9fe371da | 1497 | if (!layers || !*layers) |
14a5cf38 JH |
1498 | layers = PerlIO_context_layers(aTHX_ mode); |
1499 | if (layers && *layers) { | |
1500 | PerlIO_list_t *av; | |
1501 | if (incdef) { | |
de009b76 | 1502 | IV i; |
3a1ee7e8 | 1503 | av = PerlIO_list_alloc(aTHX); |
14a5cf38 | 1504 | for (i = 0; i < def->cur; i++) { |
3a1ee7e8 | 1505 | PerlIO_list_push(aTHX_ av, def->array[i].funcs, |
14a5cf38 JH |
1506 | def->array[i].arg); |
1507 | } | |
1508 | } | |
1509 | else { | |
1510 | av = def; | |
1511 | } | |
0cff2cf3 NIS |
1512 | if (PerlIO_parse_layers(aTHX_ av, layers) == 0) { |
1513 | return av; | |
1514 | } | |
1515 | else { | |
1516 | PerlIO_list_free(aTHX_ av); | |
b37c2d43 | 1517 | return NULL; |
0cff2cf3 | 1518 | } |
14a5cf38 JH |
1519 | } |
1520 | else { | |
1521 | if (incdef) | |
1522 | def->refcnt++; | |
1523 | return def; | |
1524 | } | |
ee518936 NIS |
1525 | } |
1526 | ||
1527 | PerlIO * | |
14a5cf38 JH |
1528 | PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, |
1529 | int imode, int perm, PerlIO *f, int narg, SV **args) | |
1530 | { | |
97aff369 | 1531 | dVAR; |
14a5cf38 JH |
1532 | if (!f && narg == 1 && *args == &PL_sv_undef) { |
1533 | if ((f = PerlIO_tmpfile())) { | |
9fe371da | 1534 | if (!layers || !*layers) |
14a5cf38 JH |
1535 | layers = PerlIO_context_layers(aTHX_ mode); |
1536 | if (layers && *layers) | |
1537 | PerlIO_apply_layers(aTHX_ f, mode, layers); | |
1538 | } | |
1539 | } | |
1540 | else { | |
de009b76 | 1541 | PerlIO_list_t *layera; |
14a5cf38 JH |
1542 | IV n; |
1543 | PerlIO_funcs *tab = NULL; | |
04892f78 | 1544 | if (PerlIOValid(f)) { |
14a5cf38 | 1545 | /* |
71200d45 NIS |
1546 | * This is "reopen" - it is not tested as perl does not use it |
1547 | * yet | |
14a5cf38 JH |
1548 | */ |
1549 | PerlIOl *l = *f; | |
3a1ee7e8 | 1550 | layera = PerlIO_list_alloc(aTHX); |
14a5cf38 | 1551 | while (l) { |
46c461b5 | 1552 | SV * const arg = (l->tab->Getarg) |
04892f78 NIS |
1553 | ? (*l->tab->Getarg) (aTHX_ &l, NULL, 0) |
1554 | : &PL_sv_undef; | |
3a1ee7e8 | 1555 | PerlIO_list_push(aTHX_ layera, l->tab, arg); |
14a5cf38 JH |
1556 | l = *PerlIONext(&l); |
1557 | } | |
1558 | } | |
1559 | else { | |
1560 | layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args); | |
0cff2cf3 NIS |
1561 | if (!layera) { |
1562 | return NULL; | |
1563 | } | |
14a5cf38 JH |
1564 | } |
1565 | /* | |
71200d45 | 1566 | * Start at "top" of layer stack |
14a5cf38 JH |
1567 | */ |
1568 | n = layera->cur - 1; | |
1569 | while (n >= 0) { | |
46c461b5 | 1570 | PerlIO_funcs * const t = PerlIO_layer_fetch(aTHX_ layera, n, NULL); |
14a5cf38 JH |
1571 | if (t && t->Open) { |
1572 | tab = t; | |
1573 | break; | |
1574 | } | |
1575 | n--; | |
1576 | } | |
1577 | if (tab) { | |
1578 | /* | |
71200d45 | 1579 | * Found that layer 'n' can do opens - call it |
14a5cf38 | 1580 | */ |
7cf31beb | 1581 | if (narg > 1 && !(tab->kind & PERLIO_K_MULTIARG)) { |
3b8752bb | 1582 | Perl_croak(aTHX_ "More than one argument to open(,':%s')",tab->name); |
7cf31beb | 1583 | } |
14a5cf38 | 1584 | PerlIO_debug("openn(%s,'%s','%s',%d,%x,%o,%p,%d,%p)\n", |
355d3743 PD |
1585 | tab->name, layers ? layers : "(Null)", mode, fd, |
1586 | imode, perm, (void*)f, narg, (void*)args); | |
210e727c JH |
1587 | if (tab->Open) |
1588 | f = (*tab->Open) (aTHX_ tab, layera, n, mode, fd, imode, perm, | |
1589 | f, narg, args); | |
1590 | else { | |
1591 | SETERRNO(EINVAL, LIB_INVARG); | |
1592 | f = NULL; | |
1593 | } | |
14a5cf38 JH |
1594 | if (f) { |
1595 | if (n + 1 < layera->cur) { | |
1596 | /* | |
1597 | * More layers above the one that we used to open - | |
71200d45 | 1598 | * apply them now |
14a5cf38 | 1599 | */ |
d9dac8cd NIS |
1600 | if (PerlIO_apply_layera(aTHX_ f, mode, layera, n + 1, layera->cur) != 0) { |
1601 | /* If pushing layers fails close the file */ | |
1602 | PerlIO_close(f); | |
14a5cf38 JH |
1603 | f = NULL; |
1604 | } | |
1605 | } | |
1606 | } | |
1607 | } | |
3a1ee7e8 | 1608 | PerlIO_list_free(aTHX_ layera); |
14a5cf38 JH |
1609 | } |
1610 | return f; | |
ee518936 | 1611 | } |
b931b1d9 NIS |
1612 | |
1613 | ||
9e353e3b | 1614 | SSize_t |
e87a358a | 1615 | Perl_PerlIO_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1616 | { |
b32dd47e | 1617 | Perl_PerlIO_or_Base(f, Read, read, -1, (aTHX_ f, vbuf, count)); |
760ac839 LW |
1618 | } |
1619 | ||
313ca112 | 1620 | SSize_t |
e87a358a | 1621 | Perl_PerlIO_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
760ac839 | 1622 | { |
b32dd47e | 1623 | Perl_PerlIO_or_Base(f, Unread, unread, -1, (aTHX_ f, vbuf, count)); |
760ac839 LW |
1624 | } |
1625 | ||
9e353e3b | 1626 | SSize_t |
e87a358a | 1627 | Perl_PerlIO_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
760ac839 | 1628 | { |
b32dd47e | 1629 | Perl_PerlIO_or_fail(f, Write, -1, (aTHX_ f, vbuf, count)); |
760ac839 LW |
1630 | } |
1631 | ||
6f9d8c32 | 1632 | int |
e87a358a | 1633 | Perl_PerlIO_seek(pTHX_ PerlIO *f, Off_t offset, int whence) |
760ac839 | 1634 | { |
b32dd47e | 1635 | Perl_PerlIO_or_fail(f, Seek, -1, (aTHX_ f, offset, whence)); |
760ac839 LW |
1636 | } |
1637 | ||
9e353e3b | 1638 | Off_t |
e87a358a | 1639 | Perl_PerlIO_tell(pTHX_ PerlIO *f) |
760ac839 | 1640 | { |
b32dd47e | 1641 | Perl_PerlIO_or_fail(f, Tell, -1, (aTHX_ f)); |
760ac839 LW |
1642 | } |
1643 | ||
6f9d8c32 | 1644 | int |
e87a358a | 1645 | Perl_PerlIO_flush(pTHX_ PerlIO *f) |
760ac839 | 1646 | { |
97aff369 | 1647 | dVAR; |
14a5cf38 JH |
1648 | if (f) { |
1649 | if (*f) { | |
de009b76 | 1650 | const PerlIO_funcs *tab = PerlIOBase(f)->tab; |
1b7a0411 JH |
1651 | |
1652 | if (tab && tab->Flush) | |
f62ce20a | 1653 | return (*tab->Flush) (aTHX_ f); |
1b7a0411 JH |
1654 | else |
1655 | return 0; /* If no Flush defined, silently succeed. */ | |
14a5cf38 JH |
1656 | } |
1657 | else { | |
fe5a182c | 1658 | PerlIO_debug("Cannot flush f=%p\n", (void*)f); |
93189314 | 1659 | SETERRNO(EBADF, SS_IVCHAN); |
14a5cf38 JH |
1660 | return -1; |
1661 | } | |
1662 | } | |
1663 | else { | |
1664 | /* | |
1665 | * Is it good API design to do flush-all on NULL, a potentially | |
1666 | * errorneous input? Maybe some magical value (PerlIO* | |
1667 | * PERLIO_FLUSH_ALL = (PerlIO*)-1;)? Yes, stdio does similar | |
1668 | * things on fflush(NULL), but should we be bound by their design | |
71200d45 | 1669 | * decisions? --jhi |
14a5cf38 | 1670 | */ |
a1ea730d | 1671 | PerlIO **table = &PL_perlio; |
14a5cf38 JH |
1672 | int code = 0; |
1673 | while ((f = *table)) { | |
1674 | int i; | |
1675 | table = (PerlIO **) (f++); | |
1676 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
1677 | if (*f && PerlIO_flush(f) != 0) | |
1678 | code = -1; | |
1679 | f++; | |
1680 | } | |
1681 | } | |
1682 | return code; | |
1683 | } | |
760ac839 LW |
1684 | } |
1685 | ||
a9c883f6 | 1686 | void |
f62ce20a | 1687 | PerlIOBase_flush_linebuf(pTHX) |
a9c883f6 | 1688 | { |
97aff369 | 1689 | dVAR; |
a1ea730d | 1690 | PerlIO **table = &PL_perlio; |
14a5cf38 JH |
1691 | PerlIO *f; |
1692 | while ((f = *table)) { | |
1693 | int i; | |
1694 | table = (PerlIO **) (f++); | |
1695 | for (i = 1; i < PERLIO_TABLE_SIZE; i++) { | |
1696 | if (*f | |
1697 | && (PerlIOBase(f)-> | |
1698 | flags & (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE)) | |
1699 | == (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE)) | |
1700 | PerlIO_flush(f); | |
1701 | f++; | |
1702 | } | |
a9c883f6 | 1703 | } |
a9c883f6 NIS |
1704 | } |
1705 | ||
06da4f11 | 1706 | int |
e87a358a | 1707 | Perl_PerlIO_fill(pTHX_ PerlIO *f) |
06da4f11 | 1708 | { |
b32dd47e | 1709 | Perl_PerlIO_or_fail(f, Fill, -1, (aTHX_ f)); |
06da4f11 NIS |
1710 | } |
1711 | ||
f3862f8b NIS |
1712 | int |
1713 | PerlIO_isutf8(PerlIO *f) | |
1714 | { | |
1b7a0411 JH |
1715 | if (PerlIOValid(f)) |
1716 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
1717 | else | |
1718 | SETERRNO(EBADF, SS_IVCHAN); | |
37725cdc | 1719 | |
1b7a0411 | 1720 | return -1; |
f3862f8b NIS |
1721 | } |
1722 | ||
6f9d8c32 | 1723 | int |
e87a358a | 1724 | Perl_PerlIO_eof(pTHX_ PerlIO *f) |
760ac839 | 1725 | { |
b32dd47e | 1726 | Perl_PerlIO_or_Base(f, Eof, eof, -1, (aTHX_ f)); |
9e353e3b NIS |
1727 | } |
1728 | ||
9e353e3b | 1729 | int |
e87a358a | 1730 | Perl_PerlIO_error(pTHX_ PerlIO *f) |
9e353e3b | 1731 | { |
b32dd47e | 1732 | Perl_PerlIO_or_Base(f, Error, error, -1, (aTHX_ f)); |
9e353e3b NIS |
1733 | } |
1734 | ||
9e353e3b | 1735 | void |
e87a358a | 1736 | Perl_PerlIO_clearerr(pTHX_ PerlIO *f) |
9e353e3b | 1737 | { |
b32dd47e | 1738 | Perl_PerlIO_or_Base_void(f, Clearerr, clearerr, (aTHX_ f)); |
9e353e3b NIS |
1739 | } |
1740 | ||
9e353e3b | 1741 | void |
e87a358a | 1742 | Perl_PerlIO_setlinebuf(pTHX_ PerlIO *f) |
9e353e3b | 1743 | { |
b32dd47e | 1744 | Perl_PerlIO_or_Base_void(f, Setlinebuf, setlinebuf, (aTHX_ f)); |
9e353e3b NIS |
1745 | } |
1746 | ||
9e353e3b NIS |
1747 | int |
1748 | PerlIO_has_base(PerlIO *f) | |
1749 | { | |
1b7a0411 | 1750 | if (PerlIOValid(f)) { |
46c461b5 | 1751 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
1b7a0411 JH |
1752 | |
1753 | if (tab) | |
1754 | return (tab->Get_base != NULL); | |
1755 | SETERRNO(EINVAL, LIB_INVARG); | |
1756 | } | |
1757 | else | |
1758 | SETERRNO(EBADF, SS_IVCHAN); | |
1759 | ||
1760 | return 0; | |
760ac839 LW |
1761 | } |
1762 | ||
9e353e3b NIS |
1763 | int |
1764 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 1765 | { |
04892f78 | 1766 | if (PerlIOValid(f) && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) { |
46c461b5 | 1767 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
1b7a0411 JH |
1768 | |
1769 | if (tab) | |
1770 | return (tab->Set_ptrcnt != NULL); | |
1771 | SETERRNO(EINVAL, LIB_INVARG); | |
14a5cf38 | 1772 | } |
1b7a0411 JH |
1773 | else |
1774 | SETERRNO(EBADF, SS_IVCHAN); | |
1775 | ||
14a5cf38 | 1776 | return 0; |
9e353e3b NIS |
1777 | } |
1778 | ||
9e353e3b NIS |
1779 | int |
1780 | PerlIO_has_cntptr(PerlIO *f) | |
1781 | { | |
04892f78 | 1782 | if (PerlIOValid(f)) { |
46c461b5 | 1783 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
1b7a0411 JH |
1784 | |
1785 | if (tab) | |
1786 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
1787 | SETERRNO(EINVAL, LIB_INVARG); | |
14a5cf38 | 1788 | } |
1b7a0411 JH |
1789 | else |
1790 | SETERRNO(EBADF, SS_IVCHAN); | |
1791 | ||
14a5cf38 | 1792 | return 0; |
9e353e3b NIS |
1793 | } |
1794 | ||
9e353e3b NIS |
1795 | int |
1796 | PerlIO_canset_cnt(PerlIO *f) | |
1797 | { | |
04892f78 | 1798 | if (PerlIOValid(f)) { |
46c461b5 | 1799 | const PerlIO_funcs * const tab = PerlIOBase(f)->tab; |
1b7a0411 JH |
1800 | |
1801 | if (tab) | |
1802 | return (tab->Set_ptrcnt != NULL); | |
1803 | SETERRNO(EINVAL, LIB_INVARG); | |
14a5cf38 | 1804 | } |
1b7a0411 JH |
1805 | else |
1806 | SETERRNO(EBADF, SS_IVCHAN); | |
1807 | ||
14a5cf38 | 1808 | return 0; |
760ac839 LW |
1809 | } |
1810 | ||
888911fc | 1811 | STDCHAR * |
e87a358a | 1812 | Perl_PerlIO_get_base(pTHX_ PerlIO *f) |
760ac839 | 1813 | { |
b32dd47e | 1814 | Perl_PerlIO_or_fail(f, Get_base, NULL, (aTHX_ f)); |
9e353e3b NIS |
1815 | } |
1816 | ||
9e353e3b | 1817 | int |
e87a358a | 1818 | Perl_PerlIO_get_bufsiz(pTHX_ PerlIO *f) |
9e353e3b | 1819 | { |
b32dd47e | 1820 | Perl_PerlIO_or_fail(f, Get_bufsiz, -1, (aTHX_ f)); |
9e353e3b NIS |
1821 | } |
1822 | ||
9e353e3b | 1823 | STDCHAR * |
e87a358a | 1824 | Perl_PerlIO_get_ptr(pTHX_ PerlIO *f) |
9e353e3b | 1825 | { |
b32dd47e | 1826 | Perl_PerlIO_or_fail(f, Get_ptr, NULL, (aTHX_ f)); |
9e353e3b NIS |
1827 | } |
1828 | ||
05d1247b | 1829 | int |
e87a358a | 1830 | Perl_PerlIO_get_cnt(pTHX_ PerlIO *f) |
9e353e3b | 1831 | { |
b32dd47e | 1832 | Perl_PerlIO_or_fail(f, Get_cnt, -1, (aTHX_ f)); |
9e353e3b NIS |
1833 | } |
1834 | ||
9e353e3b | 1835 | void |
e87a358a | 1836 | Perl_PerlIO_set_cnt(pTHX_ PerlIO *f, int cnt) |
9e353e3b | 1837 | { |
b32dd47e | 1838 | Perl_PerlIO_or_fail_void(f, Set_ptrcnt, (aTHX_ f, NULL, cnt)); |
9e353e3b NIS |
1839 | } |
1840 | ||
9e353e3b | 1841 | void |
e87a358a | 1842 | Perl_PerlIO_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, int cnt) |
9e353e3b | 1843 | { |
b32dd47e | 1844 | Perl_PerlIO_or_fail_void(f, Set_ptrcnt, (aTHX_ f, ptr, cnt)); |
9e353e3b NIS |
1845 | } |
1846 | ||
4ec2216f | 1847 | |
9e353e3b | 1848 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 1849 | /* |
71200d45 | 1850 | * utf8 and raw dummy layers |
14a5cf38 | 1851 | */ |
dfebf958 | 1852 | |
26fb694e | 1853 | IV |
2dc2558e | 1854 | PerlIOUtf8_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
26fb694e | 1855 | { |
96a5add6 | 1856 | PERL_UNUSED_CONTEXT; |
8772537c AL |
1857 | PERL_UNUSED_ARG(mode); |
1858 | PERL_UNUSED_ARG(arg); | |
00f51856 | 1859 | if (PerlIOValid(f)) { |
14a5cf38 JH |
1860 | if (tab->kind & PERLIO_K_UTF8) |
1861 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; | |
1862 | else | |
1863 | PerlIOBase(f)->flags &= ~PERLIO_F_UTF8; | |
1864 | return 0; | |
1865 | } | |
1866 | return -1; | |
26fb694e NIS |
1867 | } |
1868 | ||
27da23d5 | 1869 | PERLIO_FUNCS_DECL(PerlIO_utf8) = { |
2dc2558e | 1870 | sizeof(PerlIO_funcs), |
14a5cf38 | 1871 | "utf8", |
2dc2558e | 1872 | 0, |
6874a2de | 1873 | PERLIO_K_DUMMY | PERLIO_K_UTF8, |
14a5cf38 JH |
1874 | PerlIOUtf8_pushed, |
1875 | NULL, | |
1876 | NULL, | |
1877 | NULL, | |
1878 | NULL, | |
1879 | NULL, | |
1880 | NULL, | |
1881 | NULL, | |
1882 | NULL, | |
1883 | NULL, | |
1884 | NULL, | |
de009b76 AL |
1885 | NULL, |
1886 | NULL, | |
22569500 NIS |
1887 | NULL, /* flush */ |
1888 | NULL, /* fill */ | |
14a5cf38 JH |
1889 | NULL, |
1890 | NULL, | |
1891 | NULL, | |
1892 | NULL, | |
22569500 NIS |
1893 | NULL, /* get_base */ |
1894 | NULL, /* get_bufsiz */ | |
1895 | NULL, /* get_ptr */ | |
1896 | NULL, /* get_cnt */ | |
1897 | NULL, /* set_ptrcnt */ | |
26fb694e NIS |
1898 | }; |
1899 | ||
27da23d5 | 1900 | PERLIO_FUNCS_DECL(PerlIO_byte) = { |
2dc2558e | 1901 | sizeof(PerlIO_funcs), |
14a5cf38 | 1902 | "bytes", |
2dc2558e | 1903 | 0, |
14a5cf38 JH |
1904 | PERLIO_K_DUMMY, |
1905 | PerlIOUtf8_pushed, | |
1906 | NULL, | |
1907 | NULL, | |
1908 | NULL, | |
1909 | NULL, | |
1910 | NULL, | |
1911 | NULL, | |
1912 | NULL, | |
1913 | NULL, | |
1914 | NULL, | |
1915 | NULL, | |
de009b76 AL |
1916 | NULL, |
1917 | NULL, | |
22569500 NIS |
1918 | NULL, /* flush */ |
1919 | NULL, /* fill */ | |
14a5cf38 JH |
1920 | NULL, |
1921 | NULL, | |
1922 | NULL, | |
1923 | NULL, | |
22569500 NIS |
1924 | NULL, /* get_base */ |
1925 | NULL, /* get_bufsiz */ | |
1926 | NULL, /* get_ptr */ | |
1927 | NULL, /* get_cnt */ | |
1928 | NULL, /* set_ptrcnt */ | |
dfebf958 NIS |
1929 | }; |
1930 | ||
1931 | PerlIO * | |
14a5cf38 JH |
1932 | PerlIORaw_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
1933 | IV n, const char *mode, int fd, int imode, int perm, | |
1934 | PerlIO *old, int narg, SV **args) | |
dfebf958 | 1935 | { |
8772537c AL |
1936 | PerlIO_funcs * const tab = PerlIO_default_btm(); |
1937 | PERL_UNUSED_ARG(self); | |
210e727c JH |
1938 | if (tab && tab->Open) |
1939 | return (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
1940 | old, narg, args); | |
1941 | SETERRNO(EINVAL, LIB_INVARG); | |
1942 | return NULL; | |
dfebf958 NIS |
1943 | } |
1944 | ||
27da23d5 | 1945 | PERLIO_FUNCS_DECL(PerlIO_raw) = { |
2dc2558e | 1946 | sizeof(PerlIO_funcs), |
14a5cf38 | 1947 | "raw", |
2dc2558e | 1948 | 0, |
14a5cf38 JH |
1949 | PERLIO_K_DUMMY, |
1950 | PerlIORaw_pushed, | |
1951 | PerlIOBase_popped, | |
1952 | PerlIORaw_open, | |
1953 | NULL, | |
1954 | NULL, | |
1955 | NULL, | |
1956 | NULL, | |
1957 | NULL, | |
1958 | NULL, | |
1959 | NULL, | |
1960 | NULL, | |
de009b76 AL |
1961 | NULL, |
1962 | NULL, | |
22569500 NIS |
1963 | NULL, /* flush */ |
1964 | NULL, /* fill */ | |
14a5cf38 JH |
1965 | NULL, |
1966 | NULL, | |
1967 | NULL, | |
1968 | NULL, | |
22569500 NIS |
1969 | NULL, /* get_base */ |
1970 | NULL, /* get_bufsiz */ | |
1971 | NULL, /* get_ptr */ | |
1972 | NULL, /* get_cnt */ | |
1973 | NULL, /* set_ptrcnt */ | |
dfebf958 NIS |
1974 | }; |
1975 | /*--------------------------------------------------------------------------------------*/ | |
1976 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 1977 | /* |
71200d45 | 1978 | * "Methods" of the "base class" |
14a5cf38 | 1979 | */ |
9e353e3b NIS |
1980 | |
1981 | IV | |
f62ce20a | 1982 | PerlIOBase_fileno(pTHX_ PerlIO *f) |
9e353e3b | 1983 | { |
04892f78 | 1984 | return PerlIOValid(f) ? PerlIO_fileno(PerlIONext(f)) : -1; |
9e353e3b NIS |
1985 | } |
1986 | ||
f5b9d040 | 1987 | char * |
81428673 | 1988 | PerlIO_modestr(PerlIO * f, char *buf) |
14a5cf38 JH |
1989 | { |
1990 | char *s = buf; | |
81428673 | 1991 | if (PerlIOValid(f)) { |
de009b76 | 1992 | const IV flags = PerlIOBase(f)->flags; |
81428673 NIS |
1993 | if (flags & PERLIO_F_APPEND) { |
1994 | *s++ = 'a'; | |
1995 | if (flags & PERLIO_F_CANREAD) { | |
1996 | *s++ = '+'; | |
1997 | } | |
14a5cf38 | 1998 | } |
81428673 NIS |
1999 | else if (flags & PERLIO_F_CANREAD) { |
2000 | *s++ = 'r'; | |
2001 | if (flags & PERLIO_F_CANWRITE) | |
2002 | *s++ = '+'; | |
2003 | } | |
2004 | else if (flags & PERLIO_F_CANWRITE) { | |
2005 | *s++ = 'w'; | |
2006 | if (flags & PERLIO_F_CANREAD) { | |
2007 | *s++ = '+'; | |
2008 | } | |
14a5cf38 | 2009 | } |
35990314 | 2010 | #ifdef PERLIO_USING_CRLF |
81428673 NIS |
2011 | if (!(flags & PERLIO_F_CRLF)) |
2012 | *s++ = 'b'; | |
5f1a76d0 | 2013 | #endif |
81428673 | 2014 | } |
14a5cf38 JH |
2015 | *s = '\0'; |
2016 | return buf; | |
f5b9d040 NIS |
2017 | } |
2018 | ||
81428673 | 2019 | |
76ced9ad | 2020 | IV |
2dc2558e | 2021 | PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
9e353e3b | 2022 | { |
de009b76 | 2023 | PerlIOl * const l = PerlIOBase(f); |
96a5add6 | 2024 | PERL_UNUSED_CONTEXT; |
8772537c | 2025 | PERL_UNUSED_ARG(arg); |
de009b76 | 2026 | |
14a5cf38 JH |
2027 | l->flags &= ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE | |
2028 | PERLIO_F_TRUNCATE | PERLIO_F_APPEND); | |
2029 | if (tab->Set_ptrcnt != NULL) | |
2030 | l->flags |= PERLIO_F_FASTGETS; | |
2031 | if (mode) { | |
3b6c1aba | 2032 | if (*mode == IoTYPE_NUMERIC || *mode == IoTYPE_IMPLICIT) |
14a5cf38 JH |
2033 | mode++; |
2034 | switch (*mode++) { | |
2035 | case 'r': | |
2036 | l->flags |= PERLIO_F_CANREAD; | |
2037 | break; | |
2038 | case 'a': | |
2039 | l->flags |= PERLIO_F_APPEND | PERLIO_F_CANWRITE; | |
2040 | break; | |
2041 | case 'w': | |
2042 | l->flags |= PERLIO_F_TRUNCATE | PERLIO_F_CANWRITE; | |
2043 | break; | |
2044 | default: | |
93189314 | 2045 | SETERRNO(EINVAL, LIB_INVARG); |
14a5cf38 JH |
2046 | return -1; |
2047 | } | |
2048 | while (*mode) { | |
2049 | switch (*mode++) { | |
2050 | case '+': | |
2051 | l->flags |= PERLIO_F_CANREAD | PERLIO_F_CANWRITE; | |
2052 | break; | |
2053 | case 'b': | |
2054 | l->flags &= ~PERLIO_F_CRLF; | |
2055 | break; | |
2056 | case 't': | |
2057 | l->flags |= PERLIO_F_CRLF; | |
2058 | break; | |
2059 | default: | |
93189314 | 2060 | SETERRNO(EINVAL, LIB_INVARG); |
14a5cf38 JH |
2061 | return -1; |
2062 | } | |
2063 | } | |
2064 | } | |
2065 | else { | |
2066 | if (l->next) { | |
2067 | l->flags |= l->next->flags & | |
2068 | (PERLIO_F_CANREAD | PERLIO_F_CANWRITE | PERLIO_F_TRUNCATE | | |
2069 | PERLIO_F_APPEND); | |
2070 | } | |
2071 | } | |
5e2ab84b | 2072 | #if 0 |
14a5cf38 JH |
2073 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08" UVxf " (%s)\n", |
2074 | f, PerlIOBase(f)->tab->name, (omode) ? omode : "(Null)", | |
2075 | l->flags, PerlIO_modestr(f, temp)); | |
5e2ab84b | 2076 | #endif |
14a5cf38 | 2077 | return 0; |
76ced9ad NIS |
2078 | } |
2079 | ||
2080 | IV | |
f62ce20a | 2081 | PerlIOBase_popped(pTHX_ PerlIO *f) |
76ced9ad | 2082 | { |
96a5add6 | 2083 | PERL_UNUSED_CONTEXT; |
8772537c | 2084 | PERL_UNUSED_ARG(f); |
14a5cf38 | 2085 | return 0; |
760ac839 LW |
2086 | } |
2087 | ||
9e353e3b | 2088 | SSize_t |
f62ce20a | 2089 | PerlIOBase_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
9e353e3b | 2090 | { |
14a5cf38 | 2091 | /* |
71200d45 | 2092 | * Save the position as current head considers it |
14a5cf38 | 2093 | */ |
de009b76 | 2094 | const Off_t old = PerlIO_tell(f); |
a0714e2c | 2095 | PerlIO_push(aTHX_ f, PERLIO_FUNCS_CAST(&PerlIO_pending), "r", NULL); |
14a5cf38 | 2096 | PerlIOSelf(f, PerlIOBuf)->posn = old; |
de009b76 | 2097 | return PerlIOBuf_unread(aTHX_ f, vbuf, count); |
9e353e3b NIS |
2098 | } |
2099 | ||
f6c77cf1 | 2100 | SSize_t |
f62ce20a | 2101 | PerlIOBase_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
f6c77cf1 | 2102 | { |
14a5cf38 JH |
2103 | STDCHAR *buf = (STDCHAR *) vbuf; |
2104 | if (f) { | |
263df5f1 JH |
2105 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) { |
2106 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2107 | SETERRNO(EBADF, SS_IVCHAN); | |
2108 | return 0; | |
2109 | } | |
14a5cf38 | 2110 | while (count > 0) { |
93c2c2ec IZ |
2111 | get_cnt: |
2112 | { | |
14a5cf38 JH |
2113 | SSize_t avail = PerlIO_get_cnt(f); |
2114 | SSize_t take = 0; | |
2115 | if (avail > 0) | |
bb7a0f54 | 2116 | take = ((SSize_t)count < avail) ? (SSize_t)count : avail; |
14a5cf38 JH |
2117 | if (take > 0) { |
2118 | STDCHAR *ptr = PerlIO_get_ptr(f); | |
2119 | Copy(ptr, buf, take, STDCHAR); | |
2120 | PerlIO_set_ptrcnt(f, ptr + take, (avail -= take)); | |
2121 | count -= take; | |
2122 | buf += take; | |
93c2c2ec IZ |
2123 | if (avail == 0) /* set_ptrcnt could have reset avail */ |
2124 | goto get_cnt; | |
14a5cf38 JH |
2125 | } |
2126 | if (count > 0 && avail <= 0) { | |
2127 | if (PerlIO_fill(f) != 0) | |
2128 | break; | |
2129 | } | |
93c2c2ec | 2130 | } |
14a5cf38 JH |
2131 | } |
2132 | return (buf - (STDCHAR *) vbuf); | |
2133 | } | |
f6c77cf1 | 2134 | return 0; |
f6c77cf1 NIS |
2135 | } |
2136 | ||
9e353e3b | 2137 | IV |
f62ce20a | 2138 | PerlIOBase_noop_ok(pTHX_ PerlIO *f) |
9e353e3b | 2139 | { |
96a5add6 | 2140 | PERL_UNUSED_CONTEXT; |
8772537c | 2141 | PERL_UNUSED_ARG(f); |
14a5cf38 | 2142 | return 0; |
9e353e3b NIS |
2143 | } |
2144 | ||
2145 | IV | |
f62ce20a | 2146 | PerlIOBase_noop_fail(pTHX_ PerlIO *f) |
06da4f11 | 2147 | { |
96a5add6 | 2148 | PERL_UNUSED_CONTEXT; |
8772537c | 2149 | PERL_UNUSED_ARG(f); |
14a5cf38 | 2150 | return -1; |
06da4f11 NIS |
2151 | } |
2152 | ||
2153 | IV | |
f62ce20a | 2154 | PerlIOBase_close(pTHX_ PerlIO *f) |
9e353e3b | 2155 | { |
37725cdc NIS |
2156 | IV code = -1; |
2157 | if (PerlIOValid(f)) { | |
2158 | PerlIO *n = PerlIONext(f); | |
2159 | code = PerlIO_flush(f); | |
2160 | PerlIOBase(f)->flags &= | |
2161 | ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE | PERLIO_F_OPEN); | |
2162 | while (PerlIOValid(n)) { | |
de009b76 | 2163 | const PerlIO_funcs * const tab = PerlIOBase(n)->tab; |
37725cdc NIS |
2164 | if (tab && tab->Close) { |
2165 | if ((*tab->Close)(aTHX_ n) != 0) | |
2166 | code = -1; | |
2167 | break; | |
2168 | } | |
2169 | else { | |
2170 | PerlIOBase(n)->flags &= | |
2171 | ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE | PERLIO_F_OPEN); | |
2172 | } | |
2173 | n = PerlIONext(n); | |
2174 | } | |
2175 | } | |
2176 | else { | |
2177 | SETERRNO(EBADF, SS_IVCHAN); | |
2178 | } | |
14a5cf38 | 2179 | return code; |
9e353e3b NIS |
2180 | } |
2181 | ||
2182 | IV | |
f62ce20a | 2183 | PerlIOBase_eof(pTHX_ PerlIO *f) |
9e353e3b | 2184 | { |
96a5add6 | 2185 | PERL_UNUSED_CONTEXT; |
04892f78 | 2186 | if (PerlIOValid(f)) { |
14a5cf38 JH |
2187 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; |
2188 | } | |
2189 | return 1; | |
9e353e3b NIS |
2190 | } |
2191 | ||
2192 | IV | |
f62ce20a | 2193 | PerlIOBase_error(pTHX_ PerlIO *f) |
9e353e3b | 2194 | { |
96a5add6 | 2195 | PERL_UNUSED_CONTEXT; |
04892f78 | 2196 | if (PerlIOValid(f)) { |
14a5cf38 JH |
2197 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; |
2198 | } | |
2199 | return 1; | |
9e353e3b NIS |
2200 | } |
2201 | ||
2202 | void | |
f62ce20a | 2203 | PerlIOBase_clearerr(pTHX_ PerlIO *f) |
9e353e3b | 2204 | { |
04892f78 | 2205 | if (PerlIOValid(f)) { |
dcda55fc | 2206 | PerlIO * const n = PerlIONext(f); |
14a5cf38 | 2207 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR | PERLIO_F_EOF); |
04892f78 | 2208 | if (PerlIOValid(n)) |
14a5cf38 JH |
2209 | PerlIO_clearerr(n); |
2210 | } | |
9e353e3b NIS |
2211 | } |
2212 | ||
2213 | void | |
f62ce20a | 2214 | PerlIOBase_setlinebuf(pTHX_ PerlIO *f) |
9e353e3b | 2215 | { |
96a5add6 | 2216 | PERL_UNUSED_CONTEXT; |
04892f78 | 2217 | if (PerlIOValid(f)) { |
14a5cf38 JH |
2218 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF; |
2219 | } | |
9e353e3b NIS |
2220 | } |
2221 | ||
93a8090d NIS |
2222 | SV * |
2223 | PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param) | |
2224 | { | |
2225 | if (!arg) | |
a0714e2c | 2226 | return NULL; |
93a8090d NIS |
2227 | #ifdef sv_dup |
2228 | if (param) { | |
2229 | return sv_dup(arg, param); | |
2230 | } | |
2231 | else { | |
2232 | return newSVsv(arg); | |
2233 | } | |
2234 | #else | |
1b6737cc | 2235 | PERL_UNUSED_ARG(param); |
93a8090d NIS |
2236 | return newSVsv(arg); |
2237 | #endif | |
2238 | } | |
2239 | ||
2240 | PerlIO * | |
ecdeb87c | 2241 | PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
93a8090d | 2242 | { |
1b6737cc | 2243 | PerlIO * const nexto = PerlIONext(o); |
04892f78 | 2244 | if (PerlIOValid(nexto)) { |
de009b76 | 2245 | const PerlIO_funcs * const tab = PerlIOBase(nexto)->tab; |
37725cdc NIS |
2246 | if (tab && tab->Dup) |
2247 | f = (*tab->Dup)(aTHX_ f, nexto, param, flags); | |
2248 | else | |
2249 | f = PerlIOBase_dup(aTHX_ f, nexto, param, flags); | |
93a8090d NIS |
2250 | } |
2251 | if (f) { | |
dcda55fc | 2252 | PerlIO_funcs * const self = PerlIOBase(o)->tab; |
210e727c | 2253 | SV *arg; |
93a8090d | 2254 | char buf[8]; |
fe5a182c JH |
2255 | PerlIO_debug("PerlIOBase_dup %s f=%p o=%p param=%p\n", |
2256 | self->name, (void*)f, (void*)o, (void*)param); | |
210e727c JH |
2257 | if (self->Getarg) |
2258 | arg = (*self->Getarg)(aTHX_ o, param, flags); | |
2259 | else { | |
a0714e2c | 2260 | arg = NULL; |
93a8090d NIS |
2261 | } |
2262 | f = PerlIO_push(aTHX_ f, self, PerlIO_modestr(o,buf), arg); | |
ecdeb87c | 2263 | if (arg) { |
93a8090d NIS |
2264 | SvREFCNT_dec(arg); |
2265 | } | |
2266 | } | |
2267 | return f; | |
2268 | } | |
2269 | ||
168d5872 | 2270 | #ifdef USE_THREADS |
93a8090d | 2271 | perl_mutex PerlIO_mutex; |
93a8090d | 2272 | #endif |
27da23d5 JH |
2273 | |
2274 | /* PL_perlio_fd_refcnt[] is in intrpvar.h */ | |
93a8090d | 2275 | |
22c96fc1 NC |
2276 | /* Must be called with PerlIO_mutex locked. */ |
2277 | static void | |
2278 | S_more_refcounted_fds(pTHX_ const int new_fd) { | |
7a89be66 | 2279 | dVAR; |
22c96fc1 | 2280 | const int old_max = PL_perlio_fd_refcnt_size; |
f4ae5be6 | 2281 | const int new_max = 16 + (new_fd & ~15); |
22c96fc1 NC |
2282 | int *new_array; |
2283 | ||
2284 | PerlIO_debug("More fds - old=%d, need %d, new=%d\n", | |
2285 | old_max, new_fd, new_max); | |
2286 | ||
2287 | if (new_fd < old_max) { | |
2288 | return; | |
2289 | } | |
2290 | ||
f4ae5be6 NC |
2291 | assert (new_max > new_fd); |
2292 | ||
22c96fc1 NC |
2293 | new_array |
2294 | = PerlMemShared_realloc(PL_perlio_fd_refcnt, new_max * sizeof(int)); | |
2295 | ||
2296 | if (!new_array) { | |
2297 | #ifdef USE_THREADS | |
2298 | MUTEX_UNLOCK(&PerlIO_mutex); | |
2299 | #endif | |
2300 | /* Can't use PerlIO to write as it allocates memory */ | |
2301 | PerlLIO_write(PerlIO_fileno(Perl_error_log), | |
2302 | PL_no_mem, strlen(PL_no_mem)); | |
2303 | my_exit(1); | |
2304 | } | |
2305 | ||
2306 | PL_perlio_fd_refcnt_size = new_max; | |
2307 | PL_perlio_fd_refcnt = new_array; | |
2308 | ||
95b63a38 JH |
2309 | PerlIO_debug("Zeroing %p, %d\n", |
2310 | (void*)(new_array + old_max), | |
2311 | new_max - old_max); | |
22c96fc1 NC |
2312 | |
2313 | Zero(new_array + old_max, new_max - old_max, int); | |
2314 | } | |
2315 | ||
2316 | ||
93a8090d NIS |
2317 | void |
2318 | PerlIO_init(pTHX) | |
2319 | { | |
2320 | /* Place holder for stdstreams call ??? */ | |
168d5872 | 2321 | #ifdef USE_THREADS |
27da23d5 | 2322 | MUTEX_INIT(&PerlIO_mutex); |
96a5add6 AL |
2323 | #else |
2324 | PERL_UNUSED_CONTEXT; | |
93a8090d NIS |
2325 | #endif |
2326 | } | |
2327 | ||
168d5872 NIS |
2328 | void |
2329 | PerlIOUnix_refcnt_inc(int fd) | |
2330 | { | |
27da23d5 | 2331 | dTHX; |
22c96fc1 | 2332 | if (fd >= 0) { |
97aff369 | 2333 | dVAR; |
22c96fc1 | 2334 | |
168d5872 NIS |
2335 | #ifdef USE_THREADS |
2336 | MUTEX_LOCK(&PerlIO_mutex); | |
2337 | #endif | |
22c96fc1 NC |
2338 | if (fd >= PL_perlio_fd_refcnt_size) |
2339 | S_more_refcounted_fds(aTHX_ fd); | |
2340 | ||
27da23d5 JH |
2341 | PL_perlio_fd_refcnt[fd]++; |
2342 | PerlIO_debug("fd %d refcnt=%d\n",fd,PL_perlio_fd_refcnt[fd]); | |
22c96fc1 | 2343 | |
168d5872 NIS |
2344 | #ifdef USE_THREADS |
2345 | MUTEX_UNLOCK(&PerlIO_mutex); | |
2346 | #endif | |
2347 | } | |
2348 | } | |
2349 | ||
168d5872 NIS |
2350 | int |
2351 | PerlIOUnix_refcnt_dec(int fd) | |
2352 | { | |
27da23d5 | 2353 | dTHX; |
168d5872 | 2354 | int cnt = 0; |
22c96fc1 | 2355 | if (fd >= 0) { |
97aff369 | 2356 | dVAR; |
168d5872 NIS |
2357 | #ifdef USE_THREADS |
2358 | MUTEX_LOCK(&PerlIO_mutex); | |
2359 | #endif | |
22c96fc1 NC |
2360 | /* XXX should this be a panic? */ |
2361 | if (fd >= PL_perlio_fd_refcnt_size) | |
2362 | S_more_refcounted_fds(aTHX_ fd); | |
2363 | ||
2364 | /* XXX should this be a panic if it drops below 0? */ | |
27da23d5 | 2365 | cnt = --PL_perlio_fd_refcnt[fd]; |
168d5872 NIS |
2366 | PerlIO_debug("fd %d refcnt=%d\n",fd,cnt); |
2367 | #ifdef USE_THREADS | |
2368 | MUTEX_UNLOCK(&PerlIO_mutex); | |
2369 | #endif | |
2370 | } | |
2371 | return cnt; | |
2372 | } | |
2373 | ||
694c95cf JH |
2374 | void |
2375 | PerlIO_cleanup(pTHX) | |
2376 | { | |
97aff369 | 2377 | dVAR; |
694c95cf JH |
2378 | int i; |
2379 | #ifdef USE_ITHREADS | |
a25429c6 | 2380 | PerlIO_debug("Cleanup layers for %p\n",(void*)aTHX); |
9f4bd222 NIS |
2381 | #else |
2382 | PerlIO_debug("Cleanup layers\n"); | |
694c95cf JH |
2383 | #endif |
2384 | /* Raise STDIN..STDERR refcount so we don't close them */ | |
2385 | for (i=0; i < 3; i++) | |
2386 | PerlIOUnix_refcnt_inc(i); | |
2387 | PerlIO_cleantable(aTHX_ &PL_perlio); | |
2388 | /* Restore STDIN..STDERR refcount */ | |
2389 | for (i=0; i < 3; i++) | |
2390 | PerlIOUnix_refcnt_dec(i); | |
9f4bd222 NIS |
2391 | |
2392 | if (PL_known_layers) { | |
2393 | PerlIO_list_free(aTHX_ PL_known_layers); | |
2394 | PL_known_layers = NULL; | |
2395 | } | |
27da23d5 | 2396 | if (PL_def_layerlist) { |
9f4bd222 NIS |
2397 | PerlIO_list_free(aTHX_ PL_def_layerlist); |
2398 | PL_def_layerlist = NULL; | |
2399 | } | |
694c95cf JH |
2400 | } |
2401 | ||
2402 | ||
2403 | ||
9e353e3b | 2404 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 2405 | /* |
71200d45 | 2406 | * Bottom-most level for UNIX-like case |
14a5cf38 | 2407 | */ |
9e353e3b | 2408 | |
14a5cf38 | 2409 | typedef struct { |
22569500 NIS |
2410 | struct _PerlIO base; /* The generic part */ |
2411 | int fd; /* UNIX like file descriptor */ | |
2412 | int oflags; /* open/fcntl flags */ | |
9e353e3b NIS |
2413 | } PerlIOUnix; |
2414 | ||
6f9d8c32 | 2415 | int |
9e353e3b | 2416 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 2417 | { |
14a5cf38 | 2418 | int oflags = -1; |
3b6c1aba | 2419 | if (*mode == IoTYPE_IMPLICIT || *mode == IoTYPE_NUMERIC) |
14a5cf38 JH |
2420 | mode++; |
2421 | switch (*mode) { | |
2422 | case 'r': | |
2423 | oflags = O_RDONLY; | |
2424 | if (*++mode == '+') { | |
2425 | oflags = O_RDWR; | |
2426 | mode++; | |
2427 | } | |
2428 | break; | |
2429 | ||
2430 | case 'w': | |
2431 | oflags = O_CREAT | O_TRUNC; | |
2432 | if (*++mode == '+') { | |
2433 | oflags |= O_RDWR; | |
2434 | mode++; | |
2435 | } | |
2436 | else | |
2437 | oflags |= O_WRONLY; | |
2438 | break; | |
2439 | ||
2440 | case 'a': | |
2441 | oflags = O_CREAT | O_APPEND; | |
2442 | if (*++mode == '+') { | |
2443 | oflags |= O_RDWR; | |
2444 | mode++; | |
2445 | } | |
2446 | else | |
2447 | oflags |= O_WRONLY; | |
2448 | break; | |
2449 | } | |
2450 | if (*mode == 'b') { | |
2451 | oflags |= O_BINARY; | |
2452 | oflags &= ~O_TEXT; | |
2453 | mode++; | |
2454 | } | |
2455 | else if (*mode == 't') { | |
2456 | oflags |= O_TEXT; | |
2457 | oflags &= ~O_BINARY; | |
2458 | mode++; | |
2459 | } | |
2460 | /* | |
71200d45 | 2461 | * Always open in binary mode |
14a5cf38 JH |
2462 | */ |
2463 | oflags |= O_BINARY; | |
2464 | if (*mode || oflags == -1) { | |
93189314 | 2465 | SETERRNO(EINVAL, LIB_INVARG); |
14a5cf38 JH |
2466 | oflags = -1; |
2467 | } | |
2468 | return oflags; | |
9e353e3b NIS |
2469 | } |
2470 | ||
2471 | IV | |
f62ce20a | 2472 | PerlIOUnix_fileno(pTHX_ PerlIO *f) |
9e353e3b | 2473 | { |
96a5add6 | 2474 | PERL_UNUSED_CONTEXT; |
14a5cf38 | 2475 | return PerlIOSelf(f, PerlIOUnix)->fd; |
9e353e3b NIS |
2476 | } |
2477 | ||
aa063c35 NIS |
2478 | static void |
2479 | PerlIOUnix_setfd(pTHX_ PerlIO *f, int fd, int imode) | |
4b803d04 | 2480 | { |
de009b76 | 2481 | PerlIOUnix * const s = PerlIOSelf(f, PerlIOUnix); |
6caa5a9c | 2482 | #if defined(WIN32) |
aa063c35 NIS |
2483 | Stat_t st; |
2484 | if (PerlLIO_fstat(fd, &st) == 0) { | |
6caa5a9c | 2485 | if (!S_ISREG(st.st_mode)) { |
aa063c35 | 2486 | PerlIO_debug("%d is not regular file\n",fd); |
6caa5a9c NIS |
2487 | PerlIOBase(f)->flags |= PERLIO_F_NOTREG; |
2488 | } | |
aa063c35 NIS |
2489 | else { |
2490 | PerlIO_debug("%d _is_ a regular file\n",fd); | |
2491 | } | |
6caa5a9c NIS |
2492 | } |
2493 | #endif | |
aa063c35 NIS |
2494 | s->fd = fd; |
2495 | s->oflags = imode; | |
2496 | PerlIOUnix_refcnt_inc(fd); | |
96a5add6 | 2497 | PERL_UNUSED_CONTEXT; |
aa063c35 NIS |
2498 | } |
2499 | ||
2500 | IV | |
2501 | PerlIOUnix_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) | |
2502 | { | |
2503 | IV code = PerlIOBase_pushed(aTHX_ f, mode, arg, tab); | |
14a5cf38 | 2504 | if (*PerlIONext(f)) { |
4b069b44 | 2505 | /* We never call down so do any pending stuff now */ |
03c0554d | 2506 | PerlIO_flush(PerlIONext(f)); |
14a5cf38 | 2507 | /* |
71200d45 | 2508 | * XXX could (or should) we retrieve the oflags from the open file |
14a5cf38 | 2509 | * handle rather than believing the "mode" we are passed in? XXX |
71200d45 | 2510 | * Should the value on NULL mode be 0 or -1? |
14a5cf38 | 2511 | */ |
acbd16bf | 2512 | PerlIOUnix_setfd(aTHX_ f, PerlIO_fileno(PerlIONext(f)), |
aa063c35 | 2513 | mode ? PerlIOUnix_oflags(mode) : -1); |
14a5cf38 JH |
2514 | } |
2515 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
6caa5a9c | 2516 | |
14a5cf38 | 2517 | return code; |
4b803d04 NIS |
2518 | } |
2519 | ||
c2fcde81 JH |
2520 | IV |
2521 | PerlIOUnix_seek(pTHX_ PerlIO *f, Off_t offset, int whence) | |
2522 | { | |
de009b76 | 2523 | const int fd = PerlIOSelf(f, PerlIOUnix)->fd; |
0723351e | 2524 | Off_t new_loc; |
96a5add6 | 2525 | PERL_UNUSED_CONTEXT; |
c2fcde81 JH |
2526 | if (PerlIOBase(f)->flags & PERLIO_F_NOTREG) { |
2527 | #ifdef ESPIPE | |
2528 | SETERRNO(ESPIPE, LIB_INVARG); | |
2529 | #else | |
2530 | SETERRNO(EINVAL, LIB_INVARG); | |
2531 | #endif | |
2532 | return -1; | |
2533 | } | |
0723351e NC |
2534 | new_loc = PerlLIO_lseek(fd, offset, whence); |
2535 | if (new_loc == (Off_t) - 1) | |
dcda55fc | 2536 | return -1; |
c2fcde81 JH |
2537 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
2538 | return 0; | |
2539 | } | |
2540 | ||
9e353e3b | 2541 | PerlIO * |
14a5cf38 JH |
2542 | PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
2543 | IV n, const char *mode, int fd, int imode, | |
2544 | int perm, PerlIO *f, int narg, SV **args) | |
2545 | { | |
d9dac8cd | 2546 | if (PerlIOValid(f)) { |
14a5cf38 | 2547 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
f62ce20a | 2548 | (*PerlIOBase(f)->tab->Close)(aTHX_ f); |
14a5cf38 JH |
2549 | } |
2550 | if (narg > 0) { | |
3b6c1aba | 2551 | if (*mode == IoTYPE_NUMERIC) |
14a5cf38 JH |
2552 | mode++; |
2553 | else { | |
2554 | imode = PerlIOUnix_oflags(mode); | |
2555 | perm = 0666; | |
2556 | } | |
2557 | if (imode != -1) { | |
e62f0680 | 2558 | const char *path = SvPV_nolen_const(*args); |
14a5cf38 JH |
2559 | fd = PerlLIO_open3(path, imode, perm); |
2560 | } | |
2561 | } | |
2562 | if (fd >= 0) { | |
3b6c1aba | 2563 | if (*mode == IoTYPE_IMPLICIT) |
14a5cf38 JH |
2564 | mode++; |
2565 | if (!f) { | |
2566 | f = PerlIO_allocate(aTHX); | |
d9dac8cd NIS |
2567 | } |
2568 | if (!PerlIOValid(f)) { | |
a33cf58c NIS |
2569 | if (!(f = PerlIO_push(aTHX_ f, self, mode, PerlIOArg))) { |
2570 | return NULL; | |
2571 | } | |
d9dac8cd | 2572 | } |
aa063c35 | 2573 | PerlIOUnix_setfd(aTHX_ f, fd, imode); |
14a5cf38 | 2574 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
c2fcde81 JH |
2575 | if (*mode == IoTYPE_APPEND) |
2576 | PerlIOUnix_seek(aTHX_ f, 0, SEEK_END); | |
14a5cf38 JH |
2577 | return f; |
2578 | } | |
2579 | else { | |
2580 | if (f) { | |
6f207bd3 | 2581 | NOOP; |
14a5cf38 | 2582 | /* |
71200d45 | 2583 | * FIXME: pop layers ??? |
14a5cf38 JH |
2584 | */ |
2585 | } | |
2586 | return NULL; | |
2587 | } | |
9e353e3b NIS |
2588 | } |
2589 | ||
71200d45 | 2590 | PerlIO * |
ecdeb87c | 2591 | PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 | 2592 | { |
dcda55fc | 2593 | const PerlIOUnix * const os = PerlIOSelf(o, PerlIOUnix); |
93a8090d | 2594 | int fd = os->fd; |
ecdeb87c NIS |
2595 | if (flags & PERLIO_DUP_FD) { |
2596 | fd = PerlLIO_dup(fd); | |
2597 | } | |
22c96fc1 | 2598 | if (fd >= 0) { |
ecdeb87c | 2599 | f = PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
2600 | if (f) { |
2601 | /* If all went well overwrite fd in dup'ed lay with the dup()'ed fd */ | |
aa063c35 | 2602 | PerlIOUnix_setfd(aTHX_ f, fd, os->oflags); |
71200d45 NIS |
2603 | return f; |
2604 | } | |
71200d45 NIS |
2605 | } |
2606 | return NULL; | |
2607 | } | |
2608 | ||
2609 | ||
9e353e3b | 2610 | SSize_t |
f62ce20a | 2611 | PerlIOUnix_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
9e353e3b | 2612 | { |
97aff369 | 2613 | dVAR; |
de009b76 | 2614 | const int fd = PerlIOSelf(f, PerlIOUnix)->fd; |
27da23d5 JH |
2615 | #ifdef PERLIO_STD_SPECIAL |
2616 | if (fd == 0) | |
2617 | return PERLIO_STD_IN(fd, vbuf, count); | |
2618 | #endif | |
81428673 | 2619 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD) || |
1fd8f4ce | 2620 | PerlIOBase(f)->flags & (PERLIO_F_EOF|PERLIO_F_ERROR)) { |
263df5f1 | 2621 | return 0; |
1fd8f4ce | 2622 | } |
14a5cf38 | 2623 | while (1) { |
b464bac0 | 2624 | const SSize_t len = PerlLIO_read(fd, vbuf, count); |
14a5cf38 | 2625 | if (len >= 0 || errno != EINTR) { |
ba85f2ea NIS |
2626 | if (len < 0) { |
2627 | if (errno != EAGAIN) { | |
2628 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2629 | } | |
2630 | } | |
2631 | else if (len == 0 && count != 0) { | |
14a5cf38 | 2632 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
ba85f2ea NIS |
2633 | SETERRNO(0,0); |
2634 | } | |
14a5cf38 JH |
2635 | return len; |
2636 | } | |
2637 | PERL_ASYNC_CHECK(); | |
2638 | } | |
b464bac0 | 2639 | /*NOTREACHED*/ |
9e353e3b NIS |
2640 | } |
2641 | ||
2642 | SSize_t | |
f62ce20a | 2643 | PerlIOUnix_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
9e353e3b | 2644 | { |
97aff369 | 2645 | dVAR; |
de009b76 | 2646 | const int fd = PerlIOSelf(f, PerlIOUnix)->fd; |
27da23d5 JH |
2647 | #ifdef PERLIO_STD_SPECIAL |
2648 | if (fd == 1 || fd == 2) | |
2649 | return PERLIO_STD_OUT(fd, vbuf, count); | |
2650 | #endif | |
14a5cf38 | 2651 | while (1) { |
de009b76 | 2652 | const SSize_t len = PerlLIO_write(fd, vbuf, count); |
14a5cf38 | 2653 | if (len >= 0 || errno != EINTR) { |
ba85f2ea NIS |
2654 | if (len < 0) { |
2655 | if (errno != EAGAIN) { | |
2656 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
2657 | } | |
2658 | } | |
14a5cf38 JH |
2659 | return len; |
2660 | } | |
2661 | PERL_ASYNC_CHECK(); | |
06da4f11 | 2662 | } |
1b6737cc | 2663 | /*NOTREACHED*/ |
9e353e3b NIS |
2664 | } |
2665 | ||
9e353e3b | 2666 | Off_t |
f62ce20a | 2667 | PerlIOUnix_tell(pTHX_ PerlIO *f) |
9e353e3b | 2668 | { |
96a5add6 AL |
2669 | PERL_UNUSED_CONTEXT; |
2670 | ||
14a5cf38 | 2671 | return PerlLIO_lseek(PerlIOSelf(f, PerlIOUnix)->fd, 0, SEEK_CUR); |
9e353e3b NIS |
2672 | } |
2673 | ||
71200d45 | 2674 | |
9e353e3b | 2675 | IV |
f62ce20a | 2676 | PerlIOUnix_close(pTHX_ PerlIO *f) |
9e353e3b | 2677 | { |
97aff369 | 2678 | dVAR; |
de009b76 | 2679 | const int fd = PerlIOSelf(f, PerlIOUnix)->fd; |
14a5cf38 | 2680 | int code = 0; |
168d5872 NIS |
2681 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) { |
2682 | if (PerlIOUnix_refcnt_dec(fd) > 0) { | |
93a8090d NIS |
2683 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
2684 | return 0; | |
22569500 | 2685 | } |
93a8090d NIS |
2686 | } |
2687 | else { | |
93189314 | 2688 | SETERRNO(EBADF,SS_IVCHAN); |
93a8090d NIS |
2689 | return -1; |
2690 | } | |
14a5cf38 JH |
2691 | while (PerlLIO_close(fd) != 0) { |
2692 | if (errno != EINTR) { | |
2693 | code = -1; | |
2694 | break; | |
2695 | } | |
2696 | PERL_ASYNC_CHECK(); | |
2697 | } | |
2698 | if (code == 0) { | |
2699 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
2700 | } | |
2701 | return code; | |
9e353e3b NIS |
2702 | } |
2703 | ||
27da23d5 | 2704 | PERLIO_FUNCS_DECL(PerlIO_unix) = { |
2dc2558e | 2705 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
2706 | "unix", |
2707 | sizeof(PerlIOUnix), | |
2708 | PERLIO_K_RAW, | |
2709 | PerlIOUnix_pushed, | |
44798d05 | 2710 | PerlIOBase_popped, |
14a5cf38 | 2711 | PerlIOUnix_open, |
86e05cf2 | 2712 | PerlIOBase_binmode, /* binmode */ |
14a5cf38 JH |
2713 | NULL, |
2714 | PerlIOUnix_fileno, | |
71200d45 | 2715 | PerlIOUnix_dup, |
14a5cf38 JH |
2716 | PerlIOUnix_read, |
2717 | PerlIOBase_unread, | |
2718 | PerlIOUnix_write, | |
2719 | PerlIOUnix_seek, | |
2720 | PerlIOUnix_tell, | |
2721 | PerlIOUnix_close, | |
22569500 NIS |
2722 | PerlIOBase_noop_ok, /* flush */ |
2723 | PerlIOBase_noop_fail, /* fill */ | |
14a5cf38 JH |
2724 | PerlIOBase_eof, |
2725 | PerlIOBase_error, | |
2726 | PerlIOBase_clearerr, | |
2727 | PerlIOBase_setlinebuf, | |
22569500 NIS |
2728 | NULL, /* get_base */ |
2729 | NULL, /* get_bufsiz */ | |
2730 | NULL, /* get_ptr */ | |
2731 | NULL, /* get_cnt */ | |
2732 | NULL, /* set_ptrcnt */ | |
9e353e3b NIS |
2733 | }; |
2734 | ||
2735 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 2736 | /* |
71200d45 | 2737 | * stdio as a layer |
14a5cf38 | 2738 | */ |
9e353e3b | 2739 | |
313e59c8 NIS |
2740 | #if defined(VMS) && !defined(STDIO_BUFFER_WRITABLE) |
2741 | /* perl5.8 - This ensures the last minute VMS ungetc fix is not | |
2742 | broken by the last second glibc 2.3 fix | |
2743 | */ | |
2744 | #define STDIO_BUFFER_WRITABLE | |
2745 | #endif | |
2746 | ||
2747 | ||
14a5cf38 JH |
2748 | typedef struct { |
2749 | struct _PerlIO base; | |
22569500 | 2750 | FILE *stdio; /* The stream */ |
9e353e3b NIS |
2751 | } PerlIOStdio; |
2752 | ||
2753 | IV | |
f62ce20a | 2754 | PerlIOStdio_fileno(pTHX_ PerlIO *f) |
9e353e3b | 2755 | { |
96a5add6 AL |
2756 | PERL_UNUSED_CONTEXT; |
2757 | ||
c4420975 AL |
2758 | if (PerlIOValid(f)) { |
2759 | FILE * const s = PerlIOSelf(f, PerlIOStdio)->stdio; | |
2760 | if (s) | |
2761 | return PerlSIO_fileno(s); | |
439ba545 NIS |
2762 | } |
2763 | errno = EBADF; | |
2764 | return -1; | |
9e353e3b NIS |
2765 | } |
2766 | ||
766a733e | 2767 | char * |
14a5cf38 JH |
2768 | PerlIOStdio_mode(const char *mode, char *tmode) |
2769 | { | |
de009b76 | 2770 | char * const ret = tmode; |
a0625d38 SR |
2771 | if (mode) { |
2772 | while (*mode) { | |
2773 | *tmode++ = *mode++; | |
2774 | } | |
14a5cf38 | 2775 | } |
95005ad8 | 2776 | #if defined(PERLIO_USING_CRLF) || defined(__CYGWIN__) |
6ce75a77 JH |
2777 | *tmode++ = 'b'; |
2778 | #endif | |
14a5cf38 JH |
2779 | *tmode = '\0'; |
2780 | return ret; | |
2781 | } | |
2782 | ||
4b803d04 | 2783 | IV |
2dc2558e | 2784 | PerlIOStdio_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
4b803d04 | 2785 | { |
1fd8f4ce NIS |
2786 | PerlIO *n; |
2787 | if (PerlIOValid(f) && PerlIOValid(n = PerlIONext(f))) { | |
46c461b5 | 2788 | PerlIO_funcs * const toptab = PerlIOBase(n)->tab; |
1fd8f4ce NIS |
2789 | if (toptab == tab) { |
2790 | /* Top is already stdio - pop self (duplicate) and use original */ | |
2791 | PerlIO_pop(aTHX_ f); | |
2792 | return 0; | |
2793 | } else { | |
de009b76 | 2794 | const int fd = PerlIO_fileno(n); |
1fd8f4ce NIS |
2795 | char tmode[8]; |
2796 | FILE *stdio; | |
81428673 | 2797 | if (fd >= 0 && (stdio = PerlSIO_fdopen(fd, |
1fd8f4ce NIS |
2798 | mode = PerlIOStdio_mode(mode, tmode)))) { |
2799 | PerlIOSelf(f, PerlIOStdio)->stdio = stdio; | |
2800 | /* We never call down so do any pending stuff now */ | |
2801 | PerlIO_flush(PerlIONext(f)); | |
81428673 | 2802 | } |
1fd8f4ce NIS |
2803 | else { |
2804 | return -1; | |
2805 | } | |
2806 | } | |
14a5cf38 | 2807 | } |
2dc2558e | 2808 | return PerlIOBase_pushed(aTHX_ f, mode, arg, tab); |
4b803d04 NIS |
2809 | } |
2810 | ||
22569500 | 2811 | |
9e353e3b | 2812 | PerlIO * |
4b069b44 | 2813 | PerlIO_importFILE(FILE *stdio, const char *mode) |
9e353e3b | 2814 | { |
14a5cf38 JH |
2815 | dTHX; |
2816 | PerlIO *f = NULL; | |
2817 | if (stdio) { | |
22569500 | 2818 | PerlIOStdio *s; |
4b069b44 NIS |
2819 | if (!mode || !*mode) { |
2820 | /* We need to probe to see how we can open the stream | |
2821 | so start with read/write and then try write and read | |
2822 | we dup() so that we can fclose without loosing the fd. | |
2823 | ||
2824 | Note that the errno value set by a failing fdopen | |
2825 | varies between stdio implementations. | |
2826 | */ | |
de009b76 | 2827 | const int fd = PerlLIO_dup(fileno(stdio)); |
a33cf58c | 2828 | FILE *f2 = PerlSIO_fdopen(fd, (mode = "r+")); |
4b069b44 | 2829 | if (!f2) { |
a33cf58c | 2830 | f2 = PerlSIO_fdopen(fd, (mode = "w")); |
4b069b44 NIS |
2831 | } |
2832 | if (!f2) { | |
a33cf58c | 2833 | f2 = PerlSIO_fdopen(fd, (mode = "r")); |
4b069b44 NIS |
2834 | } |
2835 | if (!f2) { | |
2836 | /* Don't seem to be able to open */ | |
2837 | PerlLIO_close(fd); | |
2838 | return f; | |
2839 | } | |
2840 | fclose(f2); | |
22569500 | 2841 | } |
a0714e2c | 2842 | if ((f = PerlIO_push(aTHX_(f = PerlIO_allocate(aTHX)), PERLIO_FUNCS_CAST(&PerlIO_stdio), mode, NULL))) { |
a33cf58c NIS |
2843 | s = PerlIOSelf(f, PerlIOStdio); |
2844 | s->stdio = stdio; | |
2845 | } | |
14a5cf38 JH |
2846 | } |
2847 | return f; | |
9e353e3b NIS |
2848 | } |
2849 | ||
2850 | PerlIO * | |
14a5cf38 JH |
2851 | PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
2852 | IV n, const char *mode, int fd, int imode, | |
2853 | int perm, PerlIO *f, int narg, SV **args) | |
2854 | { | |
2855 | char tmode[8]; | |
d9dac8cd | 2856 | if (PerlIOValid(f)) { |
dcda55fc AL |
2857 | const char * const path = SvPV_nolen_const(*args); |
2858 | PerlIOStdio * const s = PerlIOSelf(f, PerlIOStdio); | |
1751d015 NIS |
2859 | FILE *stdio; |
2860 | PerlIOUnix_refcnt_dec(fileno(s->stdio)); | |
2861 | stdio = PerlSIO_freopen(path, (mode = PerlIOStdio_mode(mode, tmode)), | |
14a5cf38 JH |
2862 | s->stdio); |
2863 | if (!s->stdio) | |
2864 | return NULL; | |
2865 | s->stdio = stdio; | |
1751d015 | 2866 | PerlIOUnix_refcnt_inc(fileno(s->stdio)); |
14a5cf38 JH |
2867 | return f; |
2868 | } | |
2869 | else { | |
2870 | if (narg > 0) { | |
dcda55fc | 2871 | const char * const path = SvPV_nolen_const(*args); |
3b6c1aba | 2872 | if (*mode == IoTYPE_NUMERIC) { |
14a5cf38 JH |
2873 | mode++; |
2874 | fd = PerlLIO_open3(path, imode, perm); | |
2875 | } | |
2876 | else { | |
95005ad8 GH |
2877 | FILE *stdio; |
2878 | bool appended = FALSE; | |
2879 | #ifdef __CYGWIN__ | |
2880 | /* Cygwin wants its 'b' early. */ | |
2881 | appended = TRUE; | |
2882 | mode = PerlIOStdio_mode(mode, tmode); | |
2883 | #endif | |
2884 | stdio = PerlSIO_fopen(path, mode); | |
6f0313ac | 2885 | if (stdio) { |
6f0313ac JH |
2886 | if (!f) { |
2887 | f = PerlIO_allocate(aTHX); | |
2888 | } | |
95005ad8 GH |
2889 | if (!appended) |
2890 | mode = PerlIOStdio_mode(mode, tmode); | |
2891 | f = PerlIO_push(aTHX_ f, self, mode, PerlIOArg); | |
2892 | if (f) { | |
0f0f9e2b JH |
2893 | PerlIOSelf(f, PerlIOStdio)->stdio = stdio; |
2894 | PerlIOUnix_refcnt_inc(fileno(stdio)); | |
2895 | } else { | |
2896 | PerlSIO_fclose(stdio); | |
6f0313ac JH |
2897 | } |
2898 | return f; | |
2899 | } | |
2900 | else { | |
2901 | return NULL; | |
2902 | } | |
14a5cf38 JH |
2903 | } |
2904 | } | |
2905 | if (fd >= 0) { | |
2906 | FILE *stdio = NULL; | |
2907 | int init = 0; | |
3b6c1aba | 2908 | if (*mode == IoTYPE_IMPLICIT) { |
14a5cf38 JH |
2909 | init = 1; |
2910 | mode++; | |
2911 | } | |
2912 | if (init) { | |
2913 | switch (fd) { | |
2914 | case 0: | |
2915 | stdio = PerlSIO_stdin; | |
2916 | break; | |
2917 | case 1: | |
2918 | stdio = PerlSIO_stdout; | |
2919 | break; | |
2920 | case 2: | |
2921 | stdio = PerlSIO_stderr; | |
2922 | break; | |
2923 | } | |
2924 | } | |
2925 | else { | |
2926 | stdio = PerlSIO_fdopen(fd, mode = | |
2927 | PerlIOStdio_mode(mode, tmode)); | |
2928 | } | |
2929 | if (stdio) { | |
d9dac8cd NIS |
2930 | if (!f) { |
2931 | f = PerlIO_allocate(aTHX); | |
2932 | } | |
a33cf58c | 2933 | if ((f = PerlIO_push(aTHX_ f, self, mode, PerlIOArg))) { |
1a159fba JH |
2934 | PerlIOSelf(f, PerlIOStdio)->stdio = stdio; |
2935 | PerlIOUnix_refcnt_inc(fileno(stdio)); | |
a33cf58c | 2936 | } |
14a5cf38 JH |
2937 | return f; |
2938 | } | |
2939 | } | |
2940 | } | |
ee518936 | 2941 | return NULL; |
9e353e3b NIS |
2942 | } |
2943 | ||
1751d015 | 2944 | PerlIO * |
ecdeb87c | 2945 | PerlIOStdio_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
1751d015 NIS |
2946 | { |
2947 | /* This assumes no layers underneath - which is what | |
2948 | happens, but is not how I remember it. NI-S 2001/10/16 | |
2949 | */ | |
ecdeb87c | 2950 | if ((f = PerlIOBase_dup(aTHX_ f, o, param, flags))) { |
694c95cf | 2951 | FILE *stdio = PerlIOSelf(o, PerlIOStdio)->stdio; |
de009b76 | 2952 | const int fd = fileno(stdio); |
9217ff3f | 2953 | char mode[8]; |
ecdeb87c | 2954 | if (flags & PERLIO_DUP_FD) { |
de009b76 | 2955 | const int dfd = PerlLIO_dup(fileno(stdio)); |
9217ff3f NIS |
2956 | if (dfd >= 0) { |
2957 | stdio = PerlSIO_fdopen(dfd, PerlIO_modestr(o,mode)); | |
2958 | goto set_this; | |
ecdeb87c NIS |
2959 | } |
2960 | else { | |
6f207bd3 | 2961 | NOOP; |
ecdeb87c NIS |
2962 | /* FIXME: To avoid messy error recovery if dup fails |
2963 | re-use the existing stdio as though flag was not set | |
2964 | */ | |
2965 | } | |
2966 | } | |
9217ff3f NIS |
2967 | stdio = PerlSIO_fdopen(fd, PerlIO_modestr(o,mode)); |
2968 | set_this: | |
694c95cf JH |
2969 | PerlIOSelf(f, PerlIOStdio)->stdio = stdio; |
2970 | PerlIOUnix_refcnt_inc(fileno(stdio)); | |
1751d015 NIS |
2971 | } |
2972 | return f; | |
2973 | } | |
2974 | ||
0d7a5398 NIS |
2975 | static int |
2976 | PerlIOStdio_invalidate_fileno(pTHX_ FILE *f) | |
2977 | { | |
96a5add6 AL |
2978 | PERL_UNUSED_CONTEXT; |
2979 | ||
0d7a5398 | 2980 | /* XXX this could use PerlIO_canset_fileno() and |
37725cdc | 2981 | * PerlIO_set_fileno() support from Configure |
0d7a5398 | 2982 | */ |
ef8eacb8 AT |
2983 | # if defined(__UCLIBC__) |
2984 | /* uClibc must come before glibc because it defines __GLIBC__ as well. */ | |
2985 | f->__filedes = -1; | |
2986 | return 1; | |
2987 | # elif defined(__GLIBC__) | |
0d7a5398 | 2988 | /* There may be a better way for GLIBC: |
37725cdc | 2989 | - libio.h defines a flag to not close() on cleanup |
0d7a5398 NIS |
2990 | */ |
2991 | f->_fileno = -1; | |
2992 | return 1; | |
2993 | # elif defined(__sun__) | |
cfedb851 | 2994 | return 0; |
0d7a5398 NIS |
2995 | # elif defined(__hpux) |
2996 | f->__fileH = 0xff; | |
2997 | f->__fileL = 0xff; | |
2998 | return 1; | |
9837d373 | 2999 | /* Next one ->_file seems to be a reasonable fallback, i.e. if |
37725cdc | 3000 | your platform does not have special entry try this one. |
9837d373 NIS |
3001 | [For OSF only have confirmation for Tru64 (alpha) |
3002 | but assume other OSFs will be similar.] | |
37725cdc | 3003 | */ |
9837d373 | 3004 | # elif defined(_AIX) || defined(__osf__) || defined(__irix__) |
0d7a5398 NIS |
3005 | f->_file = -1; |
3006 | return 1; | |
3007 | # elif defined(__FreeBSD__) | |
3008 | /* There may be a better way on FreeBSD: | |
37725cdc NIS |
3009 | - we could insert a dummy func in the _close function entry |
3010 | f->_close = (int (*)(void *)) dummy_close; | |
0d7a5398 NIS |
3011 | */ |
3012 | f->_file = -1; | |
0c49ea6a SU |
3013 | return 1; |
3014 | # elif defined(__OpenBSD__) | |
3015 | /* There may be a better way on OpenBSD: | |
3016 | - we could insert a dummy func in the _close function entry | |
3017 | f->_close = (int (*)(void *)) dummy_close; | |
3018 | */ | |
3019 | f->_file = -1; | |
0d7a5398 | 3020 | return 1; |
59ad941d IZ |
3021 | # elif defined(__EMX__) |
3022 | /* f->_flags &= ~_IOOPEN; */ /* Will leak stream->_buffer */ | |
3023 | f->_handle = -1; | |
3024 | return 1; | |
0d7a5398 NIS |
3025 | # elif defined(__CYGWIN__) |
3026 | /* There may be a better way on CYGWIN: | |
37725cdc NIS |
3027 | - we could insert a dummy func in the _close function entry |
3028 | f->_close = (int (*)(void *)) dummy_close; | |
0d7a5398 NIS |
3029 | */ |
3030 | f->_file = -1; | |
3031 | return 1; | |
3032 | # elif defined(WIN32) | |
3033 | # if defined(__BORLANDC__) | |
3034 | f->fd = PerlLIO_dup(fileno(f)); | |
b475b3e6 JH |
3035 | # elif defined(UNDER_CE) |
3036 | /* WIN_CE does not have access to FILE internals, it hardly has FILE | |
3037 | structure at all | |
3038 | */ | |
0d7a5398 NIS |
3039 | # else |
3040 | f->_file = -1; | |
3041 | # endif | |
3042 | return 1; | |
3043 | # else | |
3044 | #if 0 | |
37725cdc | 3045 | /* Sarathy's code did this - we fall back to a dup/dup2 hack |
0d7a5398 | 3046 | (which isn't thread safe) instead |
37725cdc | 3047 | */ |
0d7a5398 NIS |
3048 | # error "Don't know how to set FILE.fileno on your platform" |
3049 | #endif | |
8772537c | 3050 | PERL_UNUSED_ARG(f); |
0d7a5398 NIS |
3051 | return 0; |
3052 | # endif | |
3053 | } | |
3054 | ||
1751d015 | 3055 | IV |
f62ce20a | 3056 | PerlIOStdio_close(pTHX_ PerlIO *f) |
1751d015 | 3057 | { |
c4420975 | 3058 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
439ba545 NIS |
3059 | if (!stdio) { |
3060 | errno = EBADF; | |
3061 | return -1; | |
3062 | } | |
9217ff3f | 3063 | else { |
de009b76 | 3064 | const int fd = fileno(stdio); |
0d7a5398 | 3065 | int invalidate = 0; |
bbfd922f | 3066 | IV result = 0; |
0d7a5398 NIS |
3067 | int saveerr = 0; |
3068 | int dupfd = 0; | |
3069 | #ifdef SOCKS5_VERSION_NAME | |
37725cdc NIS |
3070 | /* Socks lib overrides close() but stdio isn't linked to |
3071 | that library (though we are) - so we must call close() | |
3072 | on sockets on stdio's behalf. | |
3073 | */ | |
0d7a5398 NIS |
3074 | int optval; |
3075 | Sock_size_t optlen = sizeof(int); | |
6b4ce6c8 | 3076 | if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *) &optval, &optlen) == 0) |
37725cdc | 3077 | invalidate = 1; |
0d7a5398 | 3078 | #endif |
6b4ce6c8 | 3079 | if (PerlIOUnix_refcnt_dec(fd) > 0) /* File descriptor still in use */ |
0d7a5398 | 3080 | invalidate = 1; |
0d7a5398 | 3081 | if (invalidate) { |
6b4ce6c8 AL |
3082 | /* For STD* handles, don't close stdio, since we shared the FILE *, too. */ |
3083 | if (stdio == stdin) /* Some stdios are buggy fflush-ing inputs */ | |
3084 | return 0; | |
3085 | if (stdio == stdout || stdio == stderr) | |
3086 | return PerlIO_flush(f); | |
37725cdc NIS |
3087 | /* Tricky - must fclose(stdio) to free memory but not close(fd) |
3088 | Use Sarathy's trick from maint-5.6 to invalidate the | |
3089 | fileno slot of the FILE * | |
3090 | */ | |
bbfd922f | 3091 | result = PerlIO_flush(f); |
0d7a5398 | 3092 | saveerr = errno; |
6b4ce6c8 AL |
3093 | invalidate = PerlIOStdio_invalidate_fileno(aTHX_ stdio); |
3094 | if (!invalidate) | |
3095 | dupfd = PerlLIO_dup(fd); | |
37725cdc | 3096 | } |
0d7a5398 | 3097 | result = PerlSIO_fclose(stdio); |
37725cdc NIS |
3098 | /* We treat error from stdio as success if we invalidated |
3099 | errno may NOT be expected EBADF | |
e8529473 NIS |
3100 | */ |
3101 | if (invalidate && result != 0) { | |
0d7a5398 NIS |
3102 | errno = saveerr; |
3103 | result = 0; | |
37725cdc | 3104 | } |
6b4ce6c8 AL |
3105 | #ifdef SOCKS5_VERSION_NAME |
3106 | /* in SOCKS' case, let close() determine return value */ | |
3107 | result = close(fd); | |
3108 | #endif | |
0d7a5398 NIS |
3109 | if (dupfd) { |
3110 | PerlLIO_dup2(dupfd,fd); | |
8a521f28 | 3111 | PerlLIO_close(dupfd); |
9217ff3f NIS |
3112 | } |
3113 | return result; | |
37725cdc | 3114 | } |
1751d015 NIS |
3115 | } |
3116 | ||
9e353e3b | 3117 | SSize_t |
f62ce20a | 3118 | PerlIOStdio_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
9e353e3b | 3119 | { |
97aff369 | 3120 | dVAR; |
c4420975 | 3121 | FILE * const s = PerlIOSelf(f, PerlIOStdio)->stdio; |
14a5cf38 | 3122 | SSize_t got = 0; |
4d948241 NIS |
3123 | for (;;) { |
3124 | if (count == 1) { | |
3125 | STDCHAR *buf = (STDCHAR *) vbuf; | |
3126 | /* | |
3127 | * Perl is expecting PerlIO_getc() to fill the buffer Linux's | |
3128 | * stdio does not do that for fread() | |
3129 | */ | |
de009b76 | 3130 | const int ch = PerlSIO_fgetc(s); |
4d948241 NIS |
3131 | if (ch != EOF) { |
3132 | *buf = ch; | |
3133 | got = 1; | |
3134 | } | |
14a5cf38 | 3135 | } |
4d948241 NIS |
3136 | else |
3137 | got = PerlSIO_fread(vbuf, 1, count, s); | |
b1d8b47a CS |
3138 | if (got == 0 && PerlSIO_ferror(s)) |
3139 | got = -1; | |
42a7a32f | 3140 | if (got >= 0 || errno != EINTR) |
4d948241 NIS |
3141 | break; |
3142 | PERL_ASYNC_CHECK(); | |
42a7a32f | 3143 | SETERRNO(0,0); /* just in case */ |
14a5cf38 | 3144 | } |
14a5cf38 | 3145 | return got; |
9e353e3b NIS |
3146 | } |
3147 | ||
3148 | SSize_t | |
f62ce20a | 3149 | PerlIOStdio_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
9e353e3b | 3150 | { |
14a5cf38 | 3151 | SSize_t unread = 0; |
c4420975 | 3152 | FILE * const s = PerlIOSelf(f, PerlIOStdio)->stdio; |
93679785 | 3153 | |
313e59c8 | 3154 | #ifdef STDIO_BUFFER_WRITABLE |
9f7cd136 | 3155 | if (PerlIO_fast_gets(f) && PerlIO_has_base(f)) { |
93679785 NIS |
3156 | STDCHAR *buf = ((STDCHAR *) vbuf) + count; |
3157 | STDCHAR *base = PerlIO_get_base(f); | |
3158 | SSize_t cnt = PerlIO_get_cnt(f); | |
3159 | STDCHAR *ptr = PerlIO_get_ptr(f); | |
3160 | SSize_t avail = ptr - base; | |
3161 | if (avail > 0) { | |
3162 | if (avail > count) { | |
3163 | avail = count; | |
3164 | } | |
3165 | ptr -= avail; | |
3166 | Move(buf-avail,ptr,avail,STDCHAR); | |
3167 | count -= avail; | |
3168 | unread += avail; | |
3169 | PerlIO_set_ptrcnt(f,ptr,cnt+avail); | |
9f7cd136 NIS |
3170 | if (PerlSIO_feof(s) && unread >= 0) |
3171 | PerlSIO_clearerr(s); | |
3172 | } | |
3173 | } | |
313e59c8 NIS |
3174 | else |
3175 | #endif | |
3176 | if (PerlIO_has_cntptr(f)) { | |
9f7cd136 NIS |
3177 | /* We can get pointer to buffer but not its base |
3178 | Do ungetc() but check chars are ending up in the | |
3179 | buffer | |
3180 | */ | |
3181 | STDCHAR *eptr = (STDCHAR*)PerlSIO_get_ptr(s); | |
3182 | STDCHAR *buf = ((STDCHAR *) vbuf) + count; | |
3183 | while (count > 0) { | |
de009b76 | 3184 | const int ch = *--buf & 0xFF; |
9f7cd136 NIS |
3185 | if (ungetc(ch,s) != ch) { |
3186 | /* ungetc did not work */ | |
3187 | break; | |
3188 | } | |
3189 | if ((STDCHAR*)PerlSIO_get_ptr(s) != --eptr || ((*eptr & 0xFF) != ch)) { | |
3190 | /* Did not change pointer as expected */ | |
3191 | fgetc(s); /* get char back again */ | |
3192 | break; | |
3193 | } | |
3194 | /* It worked ! */ | |
3195 | count--; | |
3196 | unread++; | |
93679785 NIS |
3197 | } |
3198 | } | |
3199 | ||
3200 | if (count > 0) { | |
3201 | unread += PerlIOBase_unread(aTHX_ f, vbuf, count); | |
14a5cf38 JH |
3202 | } |
3203 | return unread; | |
9e353e3b NIS |
3204 | } |
3205 | ||
3206 | SSize_t | |
f62ce20a | 3207 | PerlIOStdio_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
9e353e3b | 3208 | { |
97aff369 | 3209 | dVAR; |
4d948241 NIS |
3210 | SSize_t got; |
3211 | for (;;) { | |
3212 | got = PerlSIO_fwrite(vbuf, 1, count, | |
3213 | PerlIOSelf(f, PerlIOStdio)->stdio); | |
42a7a32f | 3214 | if (got >= 0 || errno != EINTR) |
4d948241 NIS |
3215 | break; |
3216 | PERL_ASYNC_CHECK(); | |
42a7a32f | 3217 | SETERRNO(0,0); /* just in case */ |
4d948241 NIS |
3218 | } |
3219 | return got; | |
9e353e3b NIS |
3220 | } |
3221 | ||
94a175e1 | 3222 | IV |
f62ce20a | 3223 | PerlIOStdio_seek(pTHX_ PerlIO *f, Off_t offset, int whence) |
9e353e3b | 3224 | { |
c4420975 | 3225 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
96a5add6 AL |
3226 | PERL_UNUSED_CONTEXT; |
3227 | ||
94a175e1 | 3228 | return PerlSIO_fseek(stdio, offset, whence); |
9e353e3b NIS |
3229 | } |
3230 | ||
3231 | Off_t | |
f62ce20a | 3232 | PerlIOStdio_tell(pTHX_ PerlIO *f) |
9e353e3b | 3233 | { |
c4420975 | 3234 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
96a5add6 AL |
3235 | PERL_UNUSED_CONTEXT; |
3236 | ||
94a175e1 | 3237 | return PerlSIO_ftell(stdio); |
9e353e3b NIS |
3238 | } |
3239 | ||
3240 | IV | |
f62ce20a | 3241 | PerlIOStdio_flush(pTHX_ PerlIO *f) |
9e353e3b | 3242 | { |
c4420975 | 3243 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
96a5add6 AL |
3244 | PERL_UNUSED_CONTEXT; |
3245 | ||
14a5cf38 JH |
3246 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) { |
3247 | return PerlSIO_fflush(stdio); | |
3248 | } | |
3249 | else { | |
6f207bd3 | 3250 | NOOP; |
88b61e10 | 3251 | #if 0 |
14a5cf38 JH |
3252 | /* |
3253 | * FIXME: This discards ungetc() and pre-read stuff which is not | |
71200d45 | 3254 | * right if this is just a "sync" from a layer above Suspect right |
14a5cf38 | 3255 | * design is to do _this_ but not have layer above flush this |
71200d45 | 3256 | * layer read-to-read |
14a5cf38 JH |
3257 | */ |
3258 | /* | |
71200d45 | 3259 | * Not writeable - sync by attempting a seek |
14a5cf38 | 3260 | */ |
79852593 | 3261 | const int err = errno; |
14a5cf38 JH |
3262 | if (PerlSIO_fseek(stdio, (Off_t) 0, SEEK_CUR) != 0) |
3263 | errno = err; | |
88b61e10 | 3264 | #endif |
14a5cf38 JH |
3265 | } |
3266 | return 0; | |
9e353e3b NIS |
3267 | } |
3268 | ||
3269 | IV | |
f62ce20a | 3270 | PerlIOStdio_eof(pTHX_ PerlIO *f) |
9e353e3b | 3271 | { |
96a5add6 AL |
3272 | PERL_UNUSED_CONTEXT; |
3273 | ||
14a5cf38 | 3274 | return PerlSIO_feof(PerlIOSelf(f, PerlIOStdio)->stdio); |
9e353e3b NIS |
3275 | } |
3276 | ||
3277 | IV | |
f62ce20a | 3278 | PerlIOStdio_error(pTHX_ PerlIO *f) |
9e353e3b | 3279 | { |
96a5add6 AL |
3280 | PERL_UNUSED_CONTEXT; |
3281 | ||
263df5f1 | 3282 | return PerlSIO_ferror(PerlIOSelf(f, PerlIOStdio)->stdio); |
9e353e3b NIS |
3283 | } |
3284 | ||
3285 | void | |
f62ce20a | 3286 | PerlIOStdio_clearerr(pTHX_ PerlIO *f) |
9e353e3b | 3287 | { |
96a5add6 AL |
3288 | PERL_UNUSED_CONTEXT; |
3289 | ||
14a5cf38 | 3290 | PerlSIO_clearerr(PerlIOSelf(f, PerlIOStdio)->stdio); |
9e353e3b NIS |
3291 | } |
3292 | ||
3293 | void | |
f62ce20a | 3294 | PerlIOStdio_setlinebuf(pTHX_ PerlIO *f) |
9e353e3b | 3295 | { |
96a5add6 AL |
3296 | PERL_UNUSED_CONTEXT; |
3297 | ||
9e353e3b | 3298 | #ifdef HAS_SETLINEBUF |
14a5cf38 | 3299 | PerlSIO_setlinebuf(PerlIOSelf(f, PerlIOStdio)->stdio); |
9e353e3b | 3300 | #else |
bd61b366 | 3301 | PerlSIO_setvbuf(PerlIOSelf(f, PerlIOStdio)->stdio, NULL, _IOLBF, 0); |
9e353e3b NIS |
3302 | #endif |
3303 | } | |
3304 | ||
3305 | #ifdef FILE_base | |
3306 | STDCHAR * | |
f62ce20a | 3307 | PerlIOStdio_get_base(pTHX_ PerlIO *f) |
9e353e3b | 3308 | { |
c4420975 | 3309 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
cc00df79 | 3310 | return (STDCHAR*)PerlSIO_get_base(stdio); |
9e353e3b NIS |
3311 | } |
3312 | ||
3313 | Size_t | |
f62ce20a | 3314 | PerlIOStdio_get_bufsiz(pTHX_ PerlIO *f) |
9e353e3b | 3315 | { |
c4420975 | 3316 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
14a5cf38 | 3317 | return PerlSIO_get_bufsiz(stdio); |
9e353e3b NIS |
3318 | } |
3319 | #endif | |
3320 | ||
3321 | #ifdef USE_STDIO_PTR | |
3322 | STDCHAR * | |
f62ce20a | 3323 | PerlIOStdio_get_ptr(pTHX_ PerlIO *f) |
9e353e3b | 3324 | { |
c4420975 | 3325 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
cc00df79 | 3326 | return (STDCHAR*)PerlSIO_get_ptr(stdio); |
9e353e3b NIS |
3327 | } |
3328 | ||
3329 | SSize_t | |
f62ce20a | 3330 | PerlIOStdio_get_cnt(pTHX_ PerlIO *f) |
9e353e3b | 3331 | { |
c4420975 | 3332 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
14a5cf38 | 3333 | return PerlSIO_get_cnt(stdio); |
9e353e3b NIS |
3334 | } |
3335 | ||
3336 | void | |
f62ce20a | 3337 | PerlIOStdio_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
9e353e3b | 3338 | { |
c4420975 | 3339 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
14a5cf38 | 3340 | if (ptr != NULL) { |
9e353e3b | 3341 | #ifdef STDIO_PTR_LVALUE |
22569500 | 3342 | PerlSIO_set_ptr(stdio, (void*)ptr); /* LHS STDCHAR* cast non-portable */ |
9e353e3b | 3343 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
14a5cf38 | 3344 | if (PerlSIO_get_cnt(stdio) != (cnt)) { |
14a5cf38 JH |
3345 | assert(PerlSIO_get_cnt(stdio) == (cnt)); |
3346 | } | |
9e353e3b NIS |
3347 | #endif |
3348 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
14a5cf38 | 3349 | /* |
71200d45 | 3350 | * Setting ptr _does_ change cnt - we are done |
14a5cf38 JH |
3351 | */ |
3352 | return; | |
9e353e3b | 3353 | #endif |
22569500 | 3354 | #else /* STDIO_PTR_LVALUE */ |
14a5cf38 | 3355 | PerlProc_abort(); |
22569500 | 3356 | #endif /* STDIO_PTR_LVALUE */ |
14a5cf38 JH |
3357 | } |
3358 | /* | |
71200d45 | 3359 | * Now (or only) set cnt |
14a5cf38 | 3360 | */ |
9e353e3b | 3361 | #ifdef STDIO_CNT_LVALUE |
14a5cf38 | 3362 | PerlSIO_set_cnt(stdio, cnt); |
22569500 | 3363 | #else /* STDIO_CNT_LVALUE */ |
9e353e3b | 3364 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) |
14a5cf38 JH |
3365 | PerlSIO_set_ptr(stdio, |
3366 | PerlSIO_get_ptr(stdio) + (PerlSIO_get_cnt(stdio) - | |
3367 | cnt)); | |
22569500 | 3368 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
14a5cf38 | 3369 | PerlProc_abort(); |
22569500 NIS |
3370 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
3371 | #endif /* STDIO_CNT_LVALUE */ | |
9e353e3b NIS |
3372 | } |
3373 | ||
93679785 | 3374 | |
9e353e3b NIS |
3375 | #endif |
3376 | ||
93679785 NIS |
3377 | IV |
3378 | PerlIOStdio_fill(pTHX_ PerlIO *f) | |
3379 | { | |
c4420975 | 3380 | FILE * const stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
93679785 | 3381 | int c; |
96a5add6 AL |
3382 | PERL_UNUSED_CONTEXT; |
3383 | ||
93679785 NIS |
3384 | /* |
3385 | * fflush()ing read-only streams can cause trouble on some stdio-s | |
3386 | */ | |
3387 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) { | |
3388 | if (PerlSIO_fflush(stdio) != 0) | |
3389 | return EOF; | |
3390 | } | |
3391 | c = PerlSIO_fgetc(stdio); | |
3392 | if (c == EOF) | |
3393 | return EOF; | |
3394 | ||
3395 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) | |
313e59c8 NIS |
3396 | |
3397 | #ifdef STDIO_BUFFER_WRITABLE | |
9f7cd136 | 3398 | if (PerlIO_fast_gets(f) && PerlIO_has_base(f)) { |
93679785 NIS |
3399 | /* Fake ungetc() to the real buffer in case system's ungetc |
3400 | goes elsewhere | |
3401 | */ | |
3402 | STDCHAR *base = (STDCHAR*)PerlSIO_get_base(stdio); | |
3403 | SSize_t cnt = PerlSIO_get_cnt(stdio); | |
3404 | STDCHAR *ptr = (STDCHAR*)PerlSIO_get_ptr(stdio); | |
3405 | if (ptr == base+1) { | |
3406 | *--ptr = (STDCHAR) c; | |
3407 | PerlIOStdio_set_ptrcnt(aTHX_ f,ptr,cnt+1); | |
3408 | if (PerlSIO_feof(stdio)) | |
3409 | PerlSIO_clearerr(stdio); | |
3410 | return 0; | |
3411 | } | |
3412 | } | |
313e59c8 NIS |
3413 | else |
3414 | #endif | |
3415 | if (PerlIO_has_cntptr(f)) { | |
9f7cd136 NIS |
3416 | STDCHAR ch = c; |
3417 | if (PerlIOStdio_unread(aTHX_ f,&ch,1) == 1) { | |
3418 | return 0; | |
3419 | } | |
3420 | } | |
93679785 NIS |
3421 | #endif |
3422 | ||
3423 | #if defined(VMS) | |
3424 | /* An ungetc()d char is handled separately from the regular | |
3425 | * buffer, so we stuff it in the buffer ourselves. | |
3426 | * Should never get called as should hit code above | |
3427 | */ | |
bad9695d NIS |
3428 | *(--((*stdio)->_ptr)) = (unsigned char) c; |
3429 | (*stdio)->_cnt++; | |
93679785 NIS |
3430 | #else |
3431 | /* If buffer snoop scheme above fails fall back to | |
9f7cd136 | 3432 | using ungetc(). |
93679785 NIS |
3433 | */ |
3434 | if (PerlSIO_ungetc(c, stdio) != c) | |
3435 | return EOF; | |
3436 | #endif | |
3437 | return 0; | |
3438 | } | |
3439 | ||
3440 | ||
3441 | ||
27da23d5 | 3442 | PERLIO_FUNCS_DECL(PerlIO_stdio) = { |
2dc2558e | 3443 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
3444 | "stdio", |
3445 | sizeof(PerlIOStdio), | |
86e05cf2 | 3446 | PERLIO_K_BUFFERED|PERLIO_K_RAW, |
1fd8f4ce | 3447 | PerlIOStdio_pushed, |
44798d05 | 3448 | PerlIOBase_popped, |
14a5cf38 | 3449 | PerlIOStdio_open, |
86e05cf2 | 3450 | PerlIOBase_binmode, /* binmode */ |
14a5cf38 JH |
3451 | NULL, |
3452 | PerlIOStdio_fileno, | |
71200d45 | 3453 | PerlIOStdio_dup, |
14a5cf38 JH |
3454 | PerlIOStdio_read, |
3455 | PerlIOStdio_unread, | |
3456 | PerlIOStdio_write, | |
3457 | PerlIOStdio_seek, | |
3458 | PerlIOStdio_tell, | |
3459 | PerlIOStdio_close, | |
3460 | PerlIOStdio_flush, | |
3461 | PerlIOStdio_fill, | |
3462 | PerlIOStdio_eof, | |
3463 | PerlIOStdio_error, | |
3464 | PerlIOStdio_clearerr, | |
3465 | PerlIOStdio_setlinebuf, | |
9e353e3b | 3466 | #ifdef FILE_base |
14a5cf38 JH |
3467 | PerlIOStdio_get_base, |
3468 | PerlIOStdio_get_bufsiz, | |
9e353e3b | 3469 | #else |
14a5cf38 JH |
3470 | NULL, |
3471 | NULL, | |
9e353e3b NIS |
3472 | #endif |
3473 | #ifdef USE_STDIO_PTR | |
14a5cf38 JH |
3474 | PerlIOStdio_get_ptr, |
3475 | PerlIOStdio_get_cnt, | |
15b61c98 | 3476 | # if defined(HAS_FAST_STDIO) && defined(USE_FAST_STDIO) |
79ed0f43 | 3477 | PerlIOStdio_set_ptrcnt, |
15b61c98 JH |
3478 | # else |
3479 | NULL, | |
3480 | # endif /* HAS_FAST_STDIO && USE_FAST_STDIO */ | |
3481 | #else | |
3482 | NULL, | |
14a5cf38 JH |
3483 | NULL, |
3484 | NULL, | |
15b61c98 | 3485 | #endif /* USE_STDIO_PTR */ |
9e353e3b NIS |
3486 | }; |
3487 | ||
b9d6bf13 JH |
3488 | /* Note that calls to PerlIO_exportFILE() are reversed using |
3489 | * PerlIO_releaseFILE(), not importFILE. */ | |
9e353e3b | 3490 | FILE * |
81428673 | 3491 | PerlIO_exportFILE(PerlIO * f, const char *mode) |
9e353e3b | 3492 | { |
e87a358a | 3493 | dTHX; |
81428673 NIS |
3494 | FILE *stdio = NULL; |
3495 | if (PerlIOValid(f)) { | |
3496 | char buf[8]; | |
3497 | PerlIO_flush(f); | |
3498 | if (!mode || !*mode) { | |
3499 | mode = PerlIO_modestr(f, buf); | |
3500 | } | |
3501 | stdio = PerlSIO_fdopen(PerlIO_fileno(f), mode); | |
3502 | if (stdio) { | |
3503 | PerlIOl *l = *f; | |
9f75cc58 | 3504 | PerlIO *f2; |
81428673 NIS |
3505 | /* De-link any lower layers so new :stdio sticks */ |
3506 | *f = NULL; | |
a0714e2c | 3507 | if ((f2 = PerlIO_push(aTHX_ f, PERLIO_FUNCS_CAST(&PerlIO_stdio), buf, NULL))) { |
9f75cc58 | 3508 | PerlIOStdio *s = PerlIOSelf((f = f2), PerlIOStdio); |
81428673 NIS |
3509 | s->stdio = stdio; |
3510 | /* Link previous lower layers under new one */ | |
3511 | *PerlIONext(f) = l; | |
3512 | } | |
3513 | else { | |
3514 | /* restore layers list */ | |
3515 | *f = l; | |
3516 | } | |
a33cf58c | 3517 | } |
14a5cf38 JH |
3518 | } |
3519 | return stdio; | |
9e353e3b NIS |
3520 | } |
3521 | ||
81428673 | 3522 | |
9e353e3b NIS |
3523 | FILE * |
3524 | PerlIO_findFILE(PerlIO *f) | |
3525 | { | |
14a5cf38 JH |
3526 | PerlIOl *l = *f; |
3527 | while (l) { | |
3528 | if (l->tab == &PerlIO_stdio) { | |
3529 | PerlIOStdio *s = PerlIOSelf(&l, PerlIOStdio); | |
3530 | return s->stdio; | |
3531 | } | |
3532 | l = *PerlIONext(&l); | |
f7e7eb72 | 3533 | } |
4b069b44 | 3534 | /* Uses fallback "mode" via PerlIO_modestr() in PerlIO_exportFILE */ |
bd61b366 | 3535 | return PerlIO_exportFILE(f, NULL); |
9e353e3b NIS |
3536 | } |
3537 | ||
b9d6bf13 | 3538 | /* Use this to reverse PerlIO_exportFILE calls. */ |
9e353e3b NIS |
3539 | void |
3540 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
3541 | { | |
27da23d5 | 3542 | dVAR; |
22569500 NIS |
3543 | PerlIOl *l; |
3544 | while ((l = *p)) { | |
3545 | if (l->tab == &PerlIO_stdio) { | |
3546 | PerlIOStdio *s = PerlIOSelf(&l, PerlIOStdio); | |
3547 | if (s->stdio == f) { | |
3548 | dTHX; | |
3549 | PerlIO_pop(aTHX_ p); | |
3550 | return; | |
3551 | } | |
3552 | } | |
3553 | p = PerlIONext(p); | |
3554 | } | |
3555 | return; | |
9e353e3b NIS |
3556 | } |
3557 | ||
3558 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 3559 | /* |
71200d45 | 3560 | * perlio buffer layer |
14a5cf38 | 3561 | */ |
9e353e3b | 3562 | |
5e2ab84b | 3563 | IV |
2dc2558e | 3564 | PerlIOBuf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
5e2ab84b | 3565 | { |
14a5cf38 | 3566 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
de009b76 | 3567 | const int fd = PerlIO_fileno(f); |
14a5cf38 JH |
3568 | if (fd >= 0 && PerlLIO_isatty(fd)) { |
3569 | PerlIOBase(f)->flags |= PERLIO_F_LINEBUF | PERLIO_F_TTY; | |
3570 | } | |
4b069b44 | 3571 | if (*PerlIONext(f)) { |
de009b76 | 3572 | const Off_t posn = PerlIO_tell(PerlIONext(f)); |
4b069b44 NIS |
3573 | if (posn != (Off_t) - 1) { |
3574 | b->posn = posn; | |
3575 | } | |
14a5cf38 | 3576 | } |
2dc2558e | 3577 | return PerlIOBase_pushed(aTHX_ f, mode, arg, tab); |
5e2ab84b NIS |
3578 | } |
3579 | ||
9e353e3b | 3580 | PerlIO * |
14a5cf38 JH |
3581 | PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, |
3582 | IV n, const char *mode, int fd, int imode, int perm, | |
3583 | PerlIO *f, int narg, SV **args) | |
3584 | { | |
04892f78 | 3585 | if (PerlIOValid(f)) { |
14a5cf38 | 3586 | PerlIO *next = PerlIONext(f); |
67363c0d JH |
3587 | PerlIO_funcs *tab = |
3588 | PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIOBase(next)->tab); | |
3589 | if (tab && tab->Open) | |
3590 | next = | |
3591 | (*tab->Open)(aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
3592 | next, narg, args); | |
2dc2558e | 3593 | if (!next || (*PerlIOBase(f)->tab->Pushed) (aTHX_ f, mode, PerlIOArg, self) != 0) { |
14a5cf38 JH |
3594 | return NULL; |
3595 | } | |
3596 | } | |
3597 | else { | |
04892f78 | 3598 | PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIO_default_btm()); |
14a5cf38 | 3599 | int init = 0; |
3b6c1aba | 3600 | if (*mode == IoTYPE_IMPLICIT) { |
14a5cf38 JH |
3601 | init = 1; |
3602 | /* | |
71200d45 | 3603 | * mode++; |
14a5cf38 JH |
3604 | */ |
3605 | } | |
67363c0d JH |
3606 | if (tab && tab->Open) |
3607 | f = (*tab->Open)(aTHX_ tab, layers, n - 1, mode, fd, imode, perm, | |
3608 | f, narg, args); | |
3609 | else | |
3610 | SETERRNO(EINVAL, LIB_INVARG); | |
14a5cf38 | 3611 | if (f) { |
22569500 | 3612 | if (PerlIO_push(aTHX_ f, self, mode, PerlIOArg) == 0) { |
b26b1ab5 NC |
3613 | /* |
3614 | * if push fails during open, open fails. close will pop us. | |
3615 | */ | |
3616 | PerlIO_close (f); | |
3617 | return NULL; | |
3618 | } else { | |
3619 | fd = PerlIO_fileno(f); | |
b26b1ab5 NC |
3620 | if (init && fd == 2) { |
3621 | /* | |
3622 | * Initial stderr is unbuffered | |
3623 | */ | |
3624 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; | |
3625 | } | |
23b84778 IZ |
3626 | #ifdef PERLIO_USING_CRLF |
3627 | # ifdef PERLIO_IS_BINMODE_FD | |
3628 | if (PERLIO_IS_BINMODE_FD(fd)) | |
bd61b366 | 3629 | PerlIO_binmode(aTHX_ f, '<'/*not used*/, O_BINARY, NULL); |
23b84778 IZ |
3630 | else |
3631 | # endif | |
3632 | /* | |
3633 | * do something about failing setmode()? --jhi | |
3634 | */ | |
3635 | PerlLIO_setmode(fd, O_BINARY); | |
3636 | #endif | |
14a5cf38 JH |
3637 | } |
3638 | } | |
ee518936 | 3639 | } |
14a5cf38 | 3640 | return f; |
9e353e3b NIS |
3641 | } |
3642 | ||
14a5cf38 JH |
3643 | /* |
3644 | * This "flush" is akin to sfio's sync in that it handles files in either | |
93c2c2ec IZ |
3645 | * read or write state. For write state, we put the postponed data through |
3646 | * the next layers. For read state, we seek() the next layers to the | |
3647 | * offset given by current position in the buffer, and discard the buffer | |
3648 | * state (XXXX supposed to be for seek()able buffers only, but now it is done | |
3649 | * in any case?). Then the pass the stick further in chain. | |
14a5cf38 | 3650 | */ |
9e353e3b | 3651 | IV |
f62ce20a | 3652 | PerlIOBuf_flush(pTHX_ PerlIO *f) |
6f9d8c32 | 3653 | { |
dcda55fc | 3654 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 | 3655 | int code = 0; |
04892f78 | 3656 | PerlIO *n = PerlIONext(f); |
14a5cf38 JH |
3657 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) { |
3658 | /* | |
71200d45 | 3659 | * write() the buffer |
14a5cf38 | 3660 | */ |
de009b76 AL |
3661 | const STDCHAR *buf = b->buf; |
3662 | const STDCHAR *p = buf; | |
14a5cf38 JH |
3663 | while (p < b->ptr) { |
3664 | SSize_t count = PerlIO_write(n, p, b->ptr - p); | |
3665 | if (count > 0) { | |
3666 | p += count; | |
3667 | } | |
3668 | else if (count < 0 || PerlIO_error(n)) { | |
3669 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
3670 | code = -1; | |
3671 | break; | |
3672 | } | |
3673 | } | |
3674 | b->posn += (p - buf); | |
3675 | } | |
3676 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
3677 | STDCHAR *buf = PerlIO_get_base(f); | |
3678 | /* | |
71200d45 | 3679 | * Note position change |
14a5cf38 JH |
3680 | */ |
3681 | b->posn += (b->ptr - buf); | |
3682 | if (b->ptr < b->end) { | |
4b069b44 NIS |
3683 | /* We did not consume all of it - try and seek downstream to |
3684 | our logical position | |
14a5cf38 | 3685 | */ |
4b069b44 | 3686 | if (PerlIOValid(n) && PerlIO_seek(n, b->posn, SEEK_SET) == 0) { |
04892f78 NIS |
3687 | /* Reload n as some layers may pop themselves on seek */ |
3688 | b->posn = PerlIO_tell(n = PerlIONext(f)); | |
14a5cf38 | 3689 | } |
ba5c3fe9 | 3690 | else { |
4b069b44 NIS |
3691 | /* Seek failed (e.g. pipe or tty). Do NOT clear buffer or pre-read |
3692 | data is lost for good - so return saying "ok" having undone | |
3693 | the position adjust | |
3694 | */ | |
3695 | b->posn -= (b->ptr - buf); | |
ba5c3fe9 NIS |
3696 | return code; |
3697 | } | |
14a5cf38 JH |
3698 | } |
3699 | } | |
3700 | b->ptr = b->end = b->buf; | |
3701 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); | |
04892f78 | 3702 | /* We check for Valid because of dubious decision to make PerlIO_flush(NULL) flush all */ |
04892f78 | 3703 | if (PerlIOValid(n) && PerlIO_flush(n) != 0) |
14a5cf38 JH |
3704 | code = -1; |
3705 | return code; | |
6f9d8c32 NIS |
3706 | } |
3707 | ||
93c2c2ec IZ |
3708 | /* This discards the content of the buffer after b->ptr, and rereads |
3709 | * the buffer from the position off in the layer downstream; here off | |
3710 | * is at offset corresponding to b->ptr - b->buf. | |
3711 | */ | |
06da4f11 | 3712 | IV |
f62ce20a | 3713 | PerlIOBuf_fill(pTHX_ PerlIO *f) |
06da4f11 | 3714 | { |
dcda55fc | 3715 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3716 | PerlIO *n = PerlIONext(f); |
3717 | SSize_t avail; | |
3718 | /* | |
4b069b44 NIS |
3719 | * Down-stream flush is defined not to loose read data so is harmless. |
3720 | * we would not normally be fill'ing if there was data left in anycase. | |
14a5cf38 | 3721 | */ |
93c2c2ec | 3722 | if (PerlIO_flush(f) != 0) /* XXXX Check that its seek() succeeded?! */ |
14a5cf38 JH |
3723 | return -1; |
3724 | if (PerlIOBase(f)->flags & PERLIO_F_TTY) | |
f62ce20a | 3725 | PerlIOBase_flush_linebuf(aTHX); |
14a5cf38 JH |
3726 | |
3727 | if (!b->buf) | |
22569500 | 3728 | PerlIO_get_base(f); /* allocate via vtable */ |
14a5cf38 | 3729 | |
0f0eef27 | 3730 | assert(b->buf); /* The b->buf does get allocated via the vtable system. */ |
ec6fa4f0 | 3731 | |
14a5cf38 | 3732 | b->ptr = b->end = b->buf; |
4b069b44 NIS |
3733 | |
3734 | if (!PerlIOValid(n)) { | |
3735 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
3736 | return -1; | |
3737 | } | |
3738 | ||
14a5cf38 JH |
3739 | if (PerlIO_fast_gets(n)) { |
3740 | /* | |
04892f78 | 3741 | * Layer below is also buffered. We do _NOT_ want to call its |
14a5cf38 JH |
3742 | * ->Read() because that will loop till it gets what we asked for |
3743 | * which may hang on a pipe etc. Instead take anything it has to | |
71200d45 | 3744 | * hand, or ask it to fill _once_. |
14a5cf38 JH |
3745 | */ |
3746 | avail = PerlIO_get_cnt(n); | |
3747 | if (avail <= 0) { | |
3748 | avail = PerlIO_fill(n); | |
3749 | if (avail == 0) | |
3750 | avail = PerlIO_get_cnt(n); | |
3751 | else { | |
3752 | if (!PerlIO_error(n) && PerlIO_eof(n)) | |
3753 | avail = 0; | |
3754 | } | |
3755 | } | |
3756 | if (avail > 0) { | |
3757 | STDCHAR *ptr = PerlIO_get_ptr(n); | |
dcda55fc | 3758 | const SSize_t cnt = avail; |
eb160463 | 3759 | if (avail > (SSize_t)b->bufsiz) |
14a5cf38 JH |
3760 | avail = b->bufsiz; |
3761 | Copy(ptr, b->buf, avail, STDCHAR); | |
3762 | PerlIO_set_ptrcnt(n, ptr + avail, cnt - avail); | |
3763 | } | |
3764 | } | |
3765 | else { | |
3766 | avail = PerlIO_read(n, b->ptr, b->bufsiz); | |
3767 | } | |
3768 | if (avail <= 0) { | |
3769 | if (avail == 0) | |
3770 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
3771 | else | |
3772 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
3773 | return -1; | |
3774 | } | |
3775 | b->end = b->buf + avail; | |
3776 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3777 | return 0; | |
06da4f11 NIS |
3778 | } |
3779 | ||
6f9d8c32 | 3780 | SSize_t |
f62ce20a | 3781 | PerlIOBuf_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 3782 | { |
04892f78 | 3783 | if (PerlIOValid(f)) { |
dcda55fc | 3784 | const PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3785 | if (!b->ptr) |
3786 | PerlIO_get_base(f); | |
f62ce20a | 3787 | return PerlIOBase_read(aTHX_ f, vbuf, count); |
14a5cf38 JH |
3788 | } |
3789 | return 0; | |
6f9d8c32 NIS |
3790 | } |
3791 | ||
9e353e3b | 3792 | SSize_t |
f62ce20a | 3793 | PerlIOBuf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
760ac839 | 3794 | { |
14a5cf38 | 3795 | const STDCHAR *buf = (const STDCHAR *) vbuf + count; |
dcda55fc | 3796 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3797 | SSize_t unread = 0; |
3798 | SSize_t avail; | |
3799 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
3800 | PerlIO_flush(f); | |
3801 | if (!b->buf) | |
3802 | PerlIO_get_base(f); | |
3803 | if (b->buf) { | |
3804 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
3805 | /* | |
3806 | * Buffer is already a read buffer, we can overwrite any chars | |
71200d45 | 3807 | * which have been read back to buffer start |
14a5cf38 JH |
3808 | */ |
3809 | avail = (b->ptr - b->buf); | |
3810 | } | |
3811 | else { | |
3812 | /* | |
3813 | * Buffer is idle, set it up so whole buffer is available for | |
71200d45 | 3814 | * unread |
14a5cf38 JH |
3815 | */ |
3816 | avail = b->bufsiz; | |
3817 | b->end = b->buf + avail; | |
3818 | b->ptr = b->end; | |
3819 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
3820 | /* | |
71200d45 | 3821 | * Buffer extends _back_ from where we are now |
14a5cf38 JH |
3822 | */ |
3823 | b->posn -= b->bufsiz; | |
3824 | } | |
3825 | if (avail > (SSize_t) count) { | |
3826 | /* | |
71200d45 | 3827 | * If we have space for more than count, just move count |
14a5cf38 JH |
3828 | */ |
3829 | avail = count; | |
3830 | } | |
3831 | if (avail > 0) { | |
3832 | b->ptr -= avail; | |
3833 | buf -= avail; | |
3834 | /* | |
3835 | * In simple stdio-like ungetc() case chars will be already | |
71200d45 | 3836 | * there |
14a5cf38 JH |
3837 | */ |
3838 | if (buf != b->ptr) { | |
3839 | Copy(buf, b->ptr, avail, STDCHAR); | |
3840 | } | |
3841 | count -= avail; | |
3842 | unread += avail; | |
3843 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
3844 | } | |
3845 | } | |
93679785 NIS |
3846 | if (count > 0) { |
3847 | unread += PerlIOBase_unread(aTHX_ f, vbuf, count); | |
3848 | } | |
14a5cf38 | 3849 | return unread; |
760ac839 LW |
3850 | } |
3851 | ||
9e353e3b | 3852 | SSize_t |
f62ce20a | 3853 | PerlIOBuf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
760ac839 | 3854 | { |
de009b76 | 3855 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 | 3856 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
ee56a6b9 | 3857 | const STDCHAR *flushptr = buf; |
14a5cf38 JH |
3858 | Size_t written = 0; |
3859 | if (!b->buf) | |
3860 | PerlIO_get_base(f); | |
3861 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
3862 | return 0; | |
0678cb22 NIS |
3863 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { |
3864 | if (PerlIO_flush(f) != 0) { | |
3865 | return 0; | |
3866 | } | |
3867 | } | |
ee56a6b9 CS |
3868 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) { |
3869 | flushptr = buf + count; | |
3870 | while (flushptr > buf && *(flushptr - 1) != '\n') | |
3871 | --flushptr; | |
3872 | } | |
14a5cf38 JH |
3873 | while (count > 0) { |
3874 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
3875 | if ((SSize_t) count < avail) | |
3876 | avail = count; | |
ee56a6b9 CS |
3877 | if (flushptr > buf && flushptr <= buf + avail) |
3878 | avail = flushptr - buf; | |
14a5cf38 | 3879 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
ee56a6b9 CS |
3880 | if (avail) { |
3881 | Copy(buf, b->ptr, avail, STDCHAR); | |
3882 | count -= avail; | |
3883 | buf += avail; | |
3884 | written += avail; | |
3885 | b->ptr += avail; | |
3886 | if (buf == flushptr) | |
3887 | PerlIO_flush(f); | |
14a5cf38 JH |
3888 | } |
3889 | if (b->ptr >= (b->buf + b->bufsiz)) | |
3890 | PerlIO_flush(f); | |
3891 | } | |
3892 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) | |
3893 | PerlIO_flush(f); | |
3894 | return written; | |
9e353e3b NIS |
3895 | } |
3896 | ||
94a175e1 | 3897 | IV |
f62ce20a | 3898 | PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence) |
9e353e3b | 3899 | { |
14a5cf38 JH |
3900 | IV code; |
3901 | if ((code = PerlIO_flush(f)) == 0) { | |
14a5cf38 JH |
3902 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
3903 | code = PerlIO_seek(PerlIONext(f), offset, whence); | |
3904 | if (code == 0) { | |
de009b76 | 3905 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3906 | b->posn = PerlIO_tell(PerlIONext(f)); |
3907 | } | |
9e353e3b | 3908 | } |
14a5cf38 | 3909 | return code; |
9e353e3b NIS |
3910 | } |
3911 | ||
3912 | Off_t | |
f62ce20a | 3913 | PerlIOBuf_tell(pTHX_ PerlIO *f) |
9e353e3b | 3914 | { |
dcda55fc | 3915 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 | 3916 | /* |
71200d45 | 3917 | * b->posn is file position where b->buf was read, or will be written |
14a5cf38 JH |
3918 | */ |
3919 | Off_t posn = b->posn; | |
37725cdc | 3920 | if ((PerlIOBase(f)->flags & PERLIO_F_APPEND) && |
0678cb22 NIS |
3921 | (PerlIOBase(f)->flags & PERLIO_F_WRBUF)) { |
3922 | #if 1 | |
3923 | /* As O_APPEND files are normally shared in some sense it is better | |
3924 | to flush : | |
3925 | */ | |
3926 | PerlIO_flush(f); | |
3927 | #else | |
37725cdc | 3928 | /* when file is NOT shared then this is sufficient */ |
0678cb22 NIS |
3929 | PerlIO_seek(PerlIONext(f),0, SEEK_END); |
3930 | #endif | |
3931 | posn = b->posn = PerlIO_tell(PerlIONext(f)); | |
3932 | } | |
14a5cf38 JH |
3933 | if (b->buf) { |
3934 | /* | |
71200d45 | 3935 | * If buffer is valid adjust position by amount in buffer |
14a5cf38 JH |
3936 | */ |
3937 | posn += (b->ptr - b->buf); | |
3938 | } | |
3939 | return posn; | |
9e353e3b NIS |
3940 | } |
3941 | ||
3942 | IV | |
44798d05 NIS |
3943 | PerlIOBuf_popped(pTHX_ PerlIO *f) |
3944 | { | |
de009b76 AL |
3945 | const IV code = PerlIOBase_popped(aTHX_ f); |
3946 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); | |
44798d05 NIS |
3947 | if (b->buf && b->buf != (STDCHAR *) & b->oneword) { |
3948 | Safefree(b->buf); | |
3949 | } | |
dcda55fc | 3950 | b->ptr = b->end = b->buf = NULL; |
44798d05 NIS |
3951 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); |
3952 | return code; | |
3953 | } | |
3954 | ||
3955 | IV | |
f62ce20a | 3956 | PerlIOBuf_close(pTHX_ PerlIO *f) |
9e353e3b | 3957 | { |
de009b76 AL |
3958 | const IV code = PerlIOBase_close(aTHX_ f); |
3959 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); | |
14a5cf38 | 3960 | if (b->buf && b->buf != (STDCHAR *) & b->oneword) { |
3a1ee7e8 | 3961 | Safefree(b->buf); |
14a5cf38 | 3962 | } |
dcda55fc | 3963 | b->ptr = b->end = b->buf = NULL; |
14a5cf38 JH |
3964 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); |
3965 | return code; | |
760ac839 LW |
3966 | } |
3967 | ||
9e353e3b | 3968 | STDCHAR * |
f62ce20a | 3969 | PerlIOBuf_get_ptr(pTHX_ PerlIO *f) |
9e353e3b | 3970 | { |
dcda55fc | 3971 | const PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3972 | if (!b->buf) |
3973 | PerlIO_get_base(f); | |
3974 | return b->ptr; | |
9e353e3b NIS |
3975 | } |
3976 | ||
05d1247b | 3977 | SSize_t |
f62ce20a | 3978 | PerlIOBuf_get_cnt(pTHX_ PerlIO *f) |
9e353e3b | 3979 | { |
dcda55fc | 3980 | const PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
3981 | if (!b->buf) |
3982 | PerlIO_get_base(f); | |
3983 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
3984 | return (b->end - b->ptr); | |
3985 | return 0; | |
9e353e3b NIS |
3986 | } |
3987 | ||
3988 | STDCHAR * | |
f62ce20a | 3989 | PerlIOBuf_get_base(pTHX_ PerlIO *f) |
9e353e3b | 3990 | { |
dcda55fc | 3991 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
96a5add6 AL |
3992 | PERL_UNUSED_CONTEXT; |
3993 | ||
14a5cf38 JH |
3994 | if (!b->buf) { |
3995 | if (!b->bufsiz) | |
3996 | b->bufsiz = 4096; | |
a02a5408 | 3997 | b->buf = Newxz(b->buf,b->bufsiz, STDCHAR); |
14a5cf38 JH |
3998 | if (!b->buf) { |
3999 | b->buf = (STDCHAR *) & b->oneword; | |
4000 | b->bufsiz = sizeof(b->oneword); | |
4001 | } | |
dcda55fc | 4002 | b->end = b->ptr = b->buf; |
06da4f11 | 4003 | } |
14a5cf38 | 4004 | return b->buf; |
9e353e3b NIS |
4005 | } |
4006 | ||
4007 | Size_t | |
f62ce20a | 4008 | PerlIOBuf_bufsiz(pTHX_ PerlIO *f) |
9e353e3b | 4009 | { |
dcda55fc | 4010 | const PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
4011 | if (!b->buf) |
4012 | PerlIO_get_base(f); | |
4013 | return (b->end - b->buf); | |
9e353e3b NIS |
4014 | } |
4015 | ||
4016 | void | |
f62ce20a | 4017 | PerlIOBuf_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
9e353e3b | 4018 | { |
dcda55fc | 4019 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
4020 | if (!b->buf) |
4021 | PerlIO_get_base(f); | |
4022 | b->ptr = ptr; | |
4023 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) { | |
14a5cf38 JH |
4024 | assert(PerlIO_get_cnt(f) == cnt); |
4025 | assert(b->ptr >= b->buf); | |
4026 | } | |
4027 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
760ac839 LW |
4028 | } |
4029 | ||
71200d45 | 4030 | PerlIO * |
ecdeb87c | 4031 | PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 | 4032 | { |
ecdeb87c | 4033 | return PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
4034 | } |
4035 | ||
4036 | ||
4037 | ||
27da23d5 | 4038 | PERLIO_FUNCS_DECL(PerlIO_perlio) = { |
2dc2558e | 4039 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
4040 | "perlio", |
4041 | sizeof(PerlIOBuf), | |
86e05cf2 | 4042 | PERLIO_K_BUFFERED|PERLIO_K_RAW, |
14a5cf38 | 4043 | PerlIOBuf_pushed, |
44798d05 | 4044 | PerlIOBuf_popped, |
14a5cf38 | 4045 | PerlIOBuf_open, |
86e05cf2 | 4046 | PerlIOBase_binmode, /* binmode */ |
14a5cf38 JH |
4047 | NULL, |
4048 | PerlIOBase_fileno, | |
71200d45 | 4049 | PerlIOBuf_dup, |
14a5cf38 JH |
4050 | PerlIOBuf_read, |
4051 | PerlIOBuf_unread, | |
4052 | PerlIOBuf_write, | |
4053 | PerlIOBuf_seek, | |
4054 | PerlIOBuf_tell, | |
4055 | PerlIOBuf_close, | |
4056 | PerlIOBuf_flush, | |
4057 | PerlIOBuf_fill, | |
4058 | PerlIOBase_eof, | |
4059 | PerlIOBase_error, | |
4060 | PerlIOBase_clearerr, | |
4061 | PerlIOBase_setlinebuf, | |
4062 | PerlIOBuf_get_base, | |
4063 | PerlIOBuf_bufsiz, | |
4064 | PerlIOBuf_get_ptr, | |
4065 | PerlIOBuf_get_cnt, | |
4066 | PerlIOBuf_set_ptrcnt, | |
9e353e3b NIS |
4067 | }; |
4068 | ||
66ecd56b | 4069 | /*--------------------------------------------------------------------------------------*/ |
14a5cf38 | 4070 | /* |
71200d45 | 4071 | * Temp layer to hold unread chars when cannot do it any other way |
14a5cf38 | 4072 | */ |
5e2ab84b NIS |
4073 | |
4074 | IV | |
f62ce20a | 4075 | PerlIOPending_fill(pTHX_ PerlIO *f) |
5e2ab84b | 4076 | { |
14a5cf38 | 4077 | /* |
71200d45 | 4078 | * Should never happen |
14a5cf38 JH |
4079 | */ |
4080 | PerlIO_flush(f); | |
4081 | return 0; | |
5e2ab84b NIS |
4082 | } |
4083 | ||
4084 | IV | |
f62ce20a | 4085 | PerlIOPending_close(pTHX_ PerlIO *f) |
5e2ab84b | 4086 | { |
14a5cf38 | 4087 | /* |
71200d45 | 4088 | * A tad tricky - flush pops us, then we close new top |
14a5cf38 JH |
4089 | */ |
4090 | PerlIO_flush(f); | |
4091 | return PerlIO_close(f); | |
5e2ab84b NIS |
4092 | } |
4093 | ||
94a175e1 | 4094 | IV |
f62ce20a | 4095 | PerlIOPending_seek(pTHX_ PerlIO *f, Off_t offset, int whence) |
5e2ab84b | 4096 | { |
14a5cf38 | 4097 | /* |
71200d45 | 4098 | * A tad tricky - flush pops us, then we seek new top |
14a5cf38 JH |
4099 | */ |
4100 | PerlIO_flush(f); | |
4101 | return PerlIO_seek(f, offset, whence); | |
5e2ab84b NIS |
4102 | } |
4103 | ||
4104 | ||
4105 | IV | |
f62ce20a | 4106 | PerlIOPending_flush(pTHX_ PerlIO *f) |
5e2ab84b | 4107 | { |
dcda55fc | 4108 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 | 4109 | if (b->buf && b->buf != (STDCHAR *) & b->oneword) { |
3a1ee7e8 | 4110 | Safefree(b->buf); |
14a5cf38 JH |
4111 | b->buf = NULL; |
4112 | } | |
4113 | PerlIO_pop(aTHX_ f); | |
4114 | return 0; | |
5e2ab84b NIS |
4115 | } |
4116 | ||
4117 | void | |
f62ce20a | 4118 | PerlIOPending_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
5e2ab84b | 4119 | { |
14a5cf38 JH |
4120 | if (cnt <= 0) { |
4121 | PerlIO_flush(f); | |
4122 | } | |
4123 | else { | |
f62ce20a | 4124 | PerlIOBuf_set_ptrcnt(aTHX_ f, ptr, cnt); |
14a5cf38 | 4125 | } |
5e2ab84b NIS |
4126 | } |
4127 | ||
4128 | IV | |
2dc2558e | 4129 | PerlIOPending_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
5e2ab84b | 4130 | { |
de009b76 | 4131 | const IV code = PerlIOBase_pushed(aTHX_ f, mode, arg, tab); |
dcda55fc | 4132 | PerlIOl * const l = PerlIOBase(f); |
14a5cf38 | 4133 | /* |
71200d45 NIS |
4134 | * Our PerlIO_fast_gets must match what we are pushed on, or sv_gets() |
4135 | * etc. get muddled when it changes mid-string when we auto-pop. | |
14a5cf38 JH |
4136 | */ |
4137 | l->flags = (l->flags & ~(PERLIO_F_FASTGETS | PERLIO_F_UTF8)) | | |
4138 | (PerlIOBase(PerlIONext(f))-> | |
4139 | flags & (PERLIO_F_FASTGETS | PERLIO_F_UTF8)); | |
4140 | return code; | |
5e2ab84b NIS |
4141 | } |
4142 | ||
4143 | SSize_t | |
f62ce20a | 4144 | PerlIOPending_read(pTHX_ PerlIO *f, void *vbuf, Size_t count) |
5e2ab84b | 4145 | { |
14a5cf38 JH |
4146 | SSize_t avail = PerlIO_get_cnt(f); |
4147 | SSize_t got = 0; | |
eb160463 | 4148 | if ((SSize_t)count < avail) |
14a5cf38 JH |
4149 | avail = count; |
4150 | if (avail > 0) | |
f62ce20a | 4151 | got = PerlIOBuf_read(aTHX_ f, vbuf, avail); |
eb160463 | 4152 | if (got >= 0 && got < (SSize_t)count) { |
de009b76 | 4153 | const SSize_t more = |
14a5cf38 JH |
4154 | PerlIO_read(f, ((STDCHAR *) vbuf) + got, count - got); |
4155 | if (more >= 0 || got == 0) | |
4156 | got += more; | |
4157 | } | |
4158 | return got; | |
5e2ab84b NIS |
4159 | } |
4160 | ||
27da23d5 | 4161 | PERLIO_FUNCS_DECL(PerlIO_pending) = { |
2dc2558e | 4162 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
4163 | "pending", |
4164 | sizeof(PerlIOBuf), | |
86e05cf2 | 4165 | PERLIO_K_BUFFERED|PERLIO_K_RAW, /* not sure about RAW here */ |
14a5cf38 | 4166 | PerlIOPending_pushed, |
44798d05 | 4167 | PerlIOBuf_popped, |
14a5cf38 | 4168 | NULL, |
86e05cf2 | 4169 | PerlIOBase_binmode, /* binmode */ |
14a5cf38 JH |
4170 | NULL, |
4171 | PerlIOBase_fileno, | |
71200d45 | 4172 | PerlIOBuf_dup, |
14a5cf38 JH |
4173 | PerlIOPending_read, |
4174 | PerlIOBuf_unread, | |
4175 | PerlIOBuf_write, | |
4176 | PerlIOPending_seek, | |
4177 | PerlIOBuf_tell, | |
4178 | PerlIOPending_close, | |
4179 | PerlIOPending_flush, | |
4180 | PerlIOPending_fill, | |
4181 | PerlIOBase_eof, | |
4182 | PerlIOBase_error, | |
4183 | PerlIOBase_clearerr, | |
4184 | PerlIOBase_setlinebuf, | |
4185 | PerlIOBuf_get_base, | |
4186 | PerlIOBuf_bufsiz, | |
4187 | PerlIOBuf_get_ptr, | |
4188 | PerlIOBuf_get_cnt, | |
4189 | PerlIOPending_set_ptrcnt, | |
5e2ab84b NIS |
4190 | }; |
4191 | ||
4192 | ||
4193 | ||
4194 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 JH |
4195 | /* |
4196 | * crlf - translation On read translate CR,LF to "\n" we do this by | |
4197 | * overriding ptr/cnt entries to hand back a line at a time and keeping a | |
71200d45 | 4198 | * record of which nl we "lied" about. On write translate "\n" to CR,LF |
93c2c2ec IZ |
4199 | * |
4200 | * c->nl points on the first byte of CR LF pair when it is temporarily | |
4201 | * replaced by LF, or to the last CR of the buffer. In the former case | |
4202 | * the caller thinks that the buffer ends at c->nl + 1, in the latter | |
4203 | * that it ends at c->nl; these two cases can be distinguished by | |
4204 | * *c->nl. c->nl is set during _getcnt() call, and unset during | |
4205 | * _unread() and _flush() calls. | |
4206 | * It only matters for read operations. | |
66ecd56b NIS |
4207 | */ |
4208 | ||
14a5cf38 | 4209 | typedef struct { |
22569500 NIS |
4210 | PerlIOBuf base; /* PerlIOBuf stuff */ |
4211 | STDCHAR *nl; /* Position of crlf we "lied" about in the | |
14a5cf38 | 4212 | * buffer */ |
99efab12 NIS |
4213 | } PerlIOCrlf; |
4214 | ||
f5b9d040 | 4215 | IV |
2dc2558e | 4216 | PerlIOCrlf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
f5b9d040 | 4217 | { |
14a5cf38 JH |
4218 | IV code; |
4219 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; | |
2dc2558e | 4220 | code = PerlIOBuf_pushed(aTHX_ f, mode, arg, tab); |
5e2ab84b | 4221 | #if 0 |
14a5cf38 JH |
4222 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08" UVxf "\n", |
4223 | f, PerlIOBase(f)->tab->name, (mode) ? mode : "(Null)", | |
4224 | PerlIOBase(f)->flags); | |
5e2ab84b | 4225 | #endif |
8229d19f JH |
4226 | { |
4227 | /* Enable the first CRLF capable layer you can find, but if none | |
4228 | * found, the one we just pushed is fine. This results in at | |
4229 | * any given moment at most one CRLF-capable layer being enabled | |
4230 | * in the whole layer stack. */ | |
4231 | PerlIO *g = PerlIONext(f); | |
4232 | while (g && *g) { | |
4233 | PerlIOl *b = PerlIOBase(g); | |
4234 | if (b && b->tab == &PerlIO_crlf) { | |
4235 | if (!(b->flags & PERLIO_F_CRLF)) | |
4236 | b->flags |= PERLIO_F_CRLF; | |
4237 | PerlIO_pop(aTHX_ f); | |
4238 | return code; | |
4239 | } | |
4240 | g = PerlIONext(g); | |
4241 | } | |
4242 | } | |
14a5cf38 | 4243 | return code; |
f5b9d040 NIS |
4244 | } |
4245 | ||
4246 | ||
99efab12 | 4247 | SSize_t |
f62ce20a | 4248 | PerlIOCrlf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
99efab12 | 4249 | { |
dcda55fc | 4250 | PerlIOCrlf * const c = PerlIOSelf(f, PerlIOCrlf); |
93c2c2ec | 4251 | if (c->nl) { /* XXXX Shouldn't it be done only if b->ptr > c->nl? */ |
14a5cf38 JH |
4252 | *(c->nl) = 0xd; |
4253 | c->nl = NULL; | |
4254 | } | |
4255 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) | |
f62ce20a | 4256 | return PerlIOBuf_unread(aTHX_ f, vbuf, count); |
14a5cf38 JH |
4257 | else { |
4258 | const STDCHAR *buf = (const STDCHAR *) vbuf + count; | |
4259 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); | |
4260 | SSize_t unread = 0; | |
4261 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
4262 | PerlIO_flush(f); | |
4263 | if (!b->buf) | |
4264 | PerlIO_get_base(f); | |
4265 | if (b->buf) { | |
4266 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { | |
4267 | b->end = b->ptr = b->buf + b->bufsiz; | |
4268 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
4269 | b->posn -= b->bufsiz; | |
4270 | } | |
4271 | while (count > 0 && b->ptr > b->buf) { | |
dcda55fc | 4272 | const int ch = *--buf; |
14a5cf38 JH |
4273 | if (ch == '\n') { |
4274 | if (b->ptr - 2 >= b->buf) { | |
4275 | *--(b->ptr) = 0xa; | |
4276 | *--(b->ptr) = 0xd; | |
4277 | unread++; | |
4278 | count--; | |
4279 | } | |
4280 | else { | |
93c2c2ec IZ |
4281 | /* If b->ptr - 1 == b->buf, we are undoing reading 0xa */ |
4282 | *--(b->ptr) = 0xa; /* Works even if 0xa == '\r' */ | |
4283 | unread++; | |
4284 | count--; | |
14a5cf38 JH |
4285 | } |
4286 | } | |
4287 | else { | |
4288 | *--(b->ptr) = ch; | |
4289 | unread++; | |
4290 | count--; | |
4291 | } | |
4292 | } | |
4293 | } | |
4294 | return unread; | |
4295 | } | |
99efab12 NIS |
4296 | } |
4297 | ||
93c2c2ec | 4298 | /* XXXX This code assumes that buffer size >=2, but does not check it... */ |
99efab12 | 4299 | SSize_t |
f62ce20a | 4300 | PerlIOCrlf_get_cnt(pTHX_ PerlIO *f) |
99efab12 | 4301 | { |
dcda55fc | 4302 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
4303 | if (!b->buf) |
4304 | PerlIO_get_base(f); | |
4305 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { | |
dcda55fc | 4306 | PerlIOCrlf * const c = PerlIOSelf(f, PerlIOCrlf); |
23b3c6af NIS |
4307 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && (!c->nl || *c->nl == 0xd)) { |
4308 | STDCHAR *nl = (c->nl) ? c->nl : b->ptr; | |
14a5cf38 JH |
4309 | scan: |
4310 | while (nl < b->end && *nl != 0xd) | |
4311 | nl++; | |
4312 | if (nl < b->end && *nl == 0xd) { | |
4313 | test: | |
4314 | if (nl + 1 < b->end) { | |
4315 | if (nl[1] == 0xa) { | |
4316 | *nl = '\n'; | |
4317 | c->nl = nl; | |
4318 | } | |
4319 | else { | |
4320 | /* | |
71200d45 | 4321 | * Not CR,LF but just CR |
14a5cf38 JH |
4322 | */ |
4323 | nl++; | |
4324 | goto scan; | |
4325 | } | |
4326 | } | |
4327 | else { | |
4328 | /* | |
71200d45 | 4329 | * Blast - found CR as last char in buffer |
14a5cf38 | 4330 | */ |
e87a358a | 4331 | |
14a5cf38 JH |
4332 | if (b->ptr < nl) { |
4333 | /* | |
4334 | * They may not care, defer work as long as | |
71200d45 | 4335 | * possible |
14a5cf38 | 4336 | */ |
a0d1d361 | 4337 | c->nl = nl; |
14a5cf38 JH |
4338 | return (nl - b->ptr); |
4339 | } | |
4340 | else { | |
4341 | int code; | |
22569500 | 4342 | b->ptr++; /* say we have read it as far as |
14a5cf38 | 4343 | * flush() is concerned */ |
22569500 | 4344 | b->buf++; /* Leave space in front of buffer */ |
e949e37c NIS |
4345 | /* Note as we have moved buf up flush's |
4346 | posn += ptr-buf | |
4347 | will naturally make posn point at CR | |
4348 | */ | |
22569500 NIS |
4349 | b->bufsiz--; /* Buffer is thus smaller */ |
4350 | code = PerlIO_fill(f); /* Fetch some more */ | |
4351 | b->bufsiz++; /* Restore size for next time */ | |
4352 | b->buf--; /* Point at space */ | |
4353 | b->ptr = nl = b->buf; /* Which is what we hand | |
14a5cf38 | 4354 | * off */ |
22569500 | 4355 | *nl = 0xd; /* Fill in the CR */ |
14a5cf38 | 4356 | if (code == 0) |
22569500 | 4357 | goto test; /* fill() call worked */ |
14a5cf38 | 4358 | /* |
71200d45 | 4359 | * CR at EOF - just fall through |
14a5cf38 | 4360 | */ |
a0d1d361 | 4361 | /* Should we clear EOF though ??? */ |
14a5cf38 JH |
4362 | } |
4363 | } | |
4364 | } | |
4365 | } | |
4366 | return (((c->nl) ? (c->nl + 1) : b->end) - b->ptr); | |
4367 | } | |
4368 | return 0; | |
99efab12 NIS |
4369 | } |
4370 | ||
4371 | void | |
f62ce20a | 4372 | PerlIOCrlf_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt) |
14a5cf38 | 4373 | { |
dcda55fc AL |
4374 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
4375 | PerlIOCrlf * const c = PerlIOSelf(f, PerlIOCrlf); | |
14a5cf38 JH |
4376 | if (!b->buf) |
4377 | PerlIO_get_base(f); | |
4378 | if (!ptr) { | |
a0d1d361 | 4379 | if (c->nl) { |
14a5cf38 | 4380 | ptr = c->nl + 1; |
22569500 | 4381 | if (ptr == b->end && *c->nl == 0xd) { |
a0d1d361 | 4382 | /* Defered CR at end of buffer case - we lied about count */ |
22569500 NIS |
4383 | ptr--; |
4384 | } | |
4385 | } | |
14a5cf38 JH |
4386 | else { |
4387 | ptr = b->end; | |
14a5cf38 JH |
4388 | } |
4389 | ptr -= cnt; | |
4390 | } | |
4391 | else { | |
6f207bd3 | 4392 | NOOP; |
3b4bd3fd | 4393 | #if 0 |
14a5cf38 | 4394 | /* |
71200d45 | 4395 | * Test code - delete when it works ... |
14a5cf38 | 4396 | */ |
3b4bd3fd | 4397 | IV flags = PerlIOBase(f)->flags; |
ba7abf9d | 4398 | STDCHAR *chk = (c->nl) ? (c->nl+1) : b->end; |
22569500 | 4399 | if (ptr+cnt == c->nl && c->nl+1 == b->end && *c->nl == 0xd) { |
a0d1d361 NIS |
4400 | /* Defered CR at end of buffer case - we lied about count */ |
4401 | chk--; | |
22569500 | 4402 | } |
14a5cf38 JH |
4403 | chk -= cnt; |
4404 | ||
a0d1d361 | 4405 | if (ptr != chk ) { |
99ef548b | 4406 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08" UVxf |
14a5cf38 JH |
4407 | " nl=%p e=%p for %d", ptr, chk, flags, c->nl, |
4408 | b->end, cnt); | |
4409 | } | |
99ef548b | 4410 | #endif |
14a5cf38 JH |
4411 | } |
4412 | if (c->nl) { | |
4413 | if (ptr > c->nl) { | |
4414 | /* | |
71200d45 | 4415 | * They have taken what we lied about |
14a5cf38 JH |
4416 | */ |
4417 | *(c->nl) = 0xd; | |
4418 | c->nl = NULL; | |
4419 | ptr++; | |
4420 | } | |
4421 | } | |
4422 | b->ptr = ptr; | |
4423 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
99efab12 NIS |
4424 | } |
4425 | ||
4426 | SSize_t | |
f62ce20a | 4427 | PerlIOCrlf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
99efab12 | 4428 | { |
14a5cf38 | 4429 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
f62ce20a | 4430 | return PerlIOBuf_write(aTHX_ f, vbuf, count); |
14a5cf38 | 4431 | else { |
dcda55fc | 4432 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 | 4433 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
dcda55fc | 4434 | const STDCHAR * const ebuf = buf + count; |
14a5cf38 JH |
4435 | if (!b->buf) |
4436 | PerlIO_get_base(f); | |
4437 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) | |
4438 | return 0; | |
4439 | while (buf < ebuf) { | |
dcda55fc | 4440 | const STDCHAR * const eptr = b->buf + b->bufsiz; |
14a5cf38 JH |
4441 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
4442 | while (buf < ebuf && b->ptr < eptr) { | |
4443 | if (*buf == '\n') { | |
4444 | if ((b->ptr + 2) > eptr) { | |
4445 | /* | |
71200d45 | 4446 | * Not room for both |
14a5cf38 JH |
4447 | */ |
4448 | PerlIO_flush(f); | |
4449 | break; | |
4450 | } | |
4451 | else { | |
22569500 NIS |
4452 | *(b->ptr)++ = 0xd; /* CR */ |
4453 | *(b->ptr)++ = 0xa; /* LF */ | |
14a5cf38 JH |
4454 | buf++; |
4455 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) { | |
4456 | PerlIO_flush(f); | |
4457 | break; | |
4458 | } | |
4459 | } | |
4460 | } | |
4461 | else { | |
dcda55fc | 4462 | *(b->ptr)++ = *buf++; |
14a5cf38 JH |
4463 | } |
4464 | if (b->ptr >= eptr) { | |
4465 | PerlIO_flush(f); | |
4466 | break; | |
4467 | } | |
4468 | } | |
4469 | } | |
4470 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) | |
4471 | PerlIO_flush(f); | |
4472 | return (buf - (STDCHAR *) vbuf); | |
4473 | } | |
99efab12 NIS |
4474 | } |
4475 | ||
4476 | IV | |
f62ce20a | 4477 | PerlIOCrlf_flush(pTHX_ PerlIO *f) |
99efab12 | 4478 | { |
dcda55fc | 4479 | PerlIOCrlf * const c = PerlIOSelf(f, PerlIOCrlf); |
14a5cf38 JH |
4480 | if (c->nl) { |
4481 | *(c->nl) = 0xd; | |
4482 | c->nl = NULL; | |
4483 | } | |
f62ce20a | 4484 | return PerlIOBuf_flush(aTHX_ f); |
99efab12 NIS |
4485 | } |
4486 | ||
86e05cf2 NIS |
4487 | IV |
4488 | PerlIOCrlf_binmode(pTHX_ PerlIO *f) | |
4489 | { | |
4490 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF)) { | |
4491 | /* In text mode - flush any pending stuff and flip it */ | |
4492 | PerlIOBase(f)->flags &= ~PERLIO_F_CRLF; | |
4493 | #ifndef PERLIO_USING_CRLF | |
4494 | /* CRLF is unusual case - if this is just the :crlf layer pop it */ | |
4495 | if (PerlIOBase(f)->tab == &PerlIO_crlf) { | |
4496 | PerlIO_pop(aTHX_ f); | |
4497 | } | |
4498 | #endif | |
4499 | } | |
4500 | return 0; | |
4501 | } | |
4502 | ||
27da23d5 | 4503 | PERLIO_FUNCS_DECL(PerlIO_crlf) = { |
2dc2558e | 4504 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
4505 | "crlf", |
4506 | sizeof(PerlIOCrlf), | |
86e05cf2 | 4507 | PERLIO_K_BUFFERED | PERLIO_K_CANCRLF | PERLIO_K_RAW, |
14a5cf38 | 4508 | PerlIOCrlf_pushed, |
44798d05 | 4509 | PerlIOBuf_popped, /* popped */ |
14a5cf38 | 4510 | PerlIOBuf_open, |
86e05cf2 | 4511 | PerlIOCrlf_binmode, /* binmode */ |
14a5cf38 JH |
4512 | NULL, |
4513 | PerlIOBase_fileno, | |
71200d45 | 4514 | PerlIOBuf_dup, |
de009b76 | 4515 | PerlIOBuf_read, /* generic read works with ptr/cnt lies */ |
22569500 NIS |
4516 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ |
4517 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ | |
14a5cf38 JH |
4518 | PerlIOBuf_seek, |
4519 | PerlIOBuf_tell, | |
4520 | PerlIOBuf_close, | |
4521 | PerlIOCrlf_flush, | |
4522 | PerlIOBuf_fill, | |
4523 | PerlIOBase_eof, | |
4524 | PerlIOBase_error, | |
4525 | PerlIOBase_clearerr, | |
4526 | PerlIOBase_setlinebuf, | |
4527 | PerlIOBuf_get_base, | |
4528 | PerlIOBuf_bufsiz, | |
4529 | PerlIOBuf_get_ptr, | |
4530 | PerlIOCrlf_get_cnt, | |
4531 | PerlIOCrlf_set_ptrcnt, | |
66ecd56b NIS |
4532 | }; |
4533 | ||
06da4f11 NIS |
4534 | #ifdef HAS_MMAP |
4535 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 | 4536 | /* |
71200d45 | 4537 | * mmap as "buffer" layer |
14a5cf38 | 4538 | */ |
06da4f11 | 4539 | |
14a5cf38 | 4540 | typedef struct { |
22569500 NIS |
4541 | PerlIOBuf base; /* PerlIOBuf stuff */ |
4542 | Mmap_t mptr; /* Mapped address */ | |
4543 | Size_t len; /* mapped length */ | |
4544 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
06da4f11 NIS |
4545 | } PerlIOMmap; |
4546 | ||
4547 | IV | |
f62ce20a | 4548 | PerlIOMmap_map(pTHX_ PerlIO *f) |
06da4f11 | 4549 | { |
27da23d5 | 4550 | dVAR; |
de009b76 AL |
4551 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4552 | const IV flags = PerlIOBase(f)->flags; | |
14a5cf38 JH |
4553 | IV code = 0; |
4554 | if (m->len) | |
4555 | abort(); | |
4556 | if (flags & PERLIO_F_CANREAD) { | |
dcda55fc | 4557 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
de009b76 | 4558 | const int fd = PerlIO_fileno(f); |
10eefe7f CB |
4559 | Stat_t st; |
4560 | code = Fstat(fd, &st); | |
14a5cf38 JH |
4561 | if (code == 0 && S_ISREG(st.st_mode)) { |
4562 | SSize_t len = st.st_size - b->posn; | |
4563 | if (len > 0) { | |
4564 | Off_t posn; | |
27da23d5 JH |
4565 | if (PL_mmap_page_size <= 0) |
4566 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
4567 | PL_mmap_page_size); | |
14a5cf38 JH |
4568 | if (b->posn < 0) { |
4569 | /* | |
4570 | * This is a hack - should never happen - open should | |
71200d45 | 4571 | * have set it ! |
14a5cf38 JH |
4572 | */ |
4573 | b->posn = PerlIO_tell(PerlIONext(f)); | |
4574 | } | |
27da23d5 | 4575 | posn = (b->posn / PL_mmap_page_size) * PL_mmap_page_size; |
14a5cf38 JH |
4576 | len = st.st_size - posn; |
4577 | m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn); | |
4578 | if (m->mptr && m->mptr != (Mmap_t) - 1) { | |
a5262162 | 4579 | #if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
14a5cf38 | 4580 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 4581 | #endif |
a5262162 | 4582 | #if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED) |
14a5cf38 | 4583 | madvise(m->mptr, len, MADV_WILLNEED); |
a5262162 | 4584 | #endif |
14a5cf38 JH |
4585 | PerlIOBase(f)->flags = |
4586 | (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; | |
4587 | b->end = ((STDCHAR *) m->mptr) + len; | |
4588 | b->buf = ((STDCHAR *) m->mptr) + (b->posn - posn); | |
4589 | b->ptr = b->buf; | |
4590 | m->len = len; | |
4591 | } | |
4592 | else { | |
4593 | b->buf = NULL; | |
4594 | } | |
4595 | } | |
4596 | else { | |
4597 | PerlIOBase(f)->flags = | |
4598 | flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
4599 | b->buf = NULL; | |
4600 | b->ptr = b->end = b->ptr; | |
4601 | code = -1; | |
4602 | } | |
4603 | } | |
4604 | } | |
4605 | return code; | |
06da4f11 NIS |
4606 | } |
4607 | ||
4608 | IV | |
e87a358a | 4609 | PerlIOMmap_unmap(pTHX_ PerlIO *f) |
06da4f11 | 4610 | { |
dcda55fc | 4611 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
14a5cf38 JH |
4612 | IV code = 0; |
4613 | if (m->len) { | |
dcda55fc | 4614 | PerlIOBuf * const b = &m->base; |
14a5cf38 JH |
4615 | if (b->buf) { |
4616 | code = munmap(m->mptr, m->len); | |
4617 | b->buf = NULL; | |
4618 | m->len = 0; | |
4619 | m->mptr = NULL; | |
4620 | if (PerlIO_seek(PerlIONext(f), b->posn, SEEK_SET) != 0) | |
4621 | code = -1; | |
4622 | } | |
4623 | b->ptr = b->end = b->buf; | |
4624 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); | |
4625 | } | |
4626 | return code; | |
06da4f11 NIS |
4627 | } |
4628 | ||
4629 | STDCHAR * | |
f62ce20a | 4630 | PerlIOMmap_get_base(pTHX_ PerlIO *f) |
06da4f11 | 4631 | { |
dcda55fc AL |
4632 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4633 | PerlIOBuf * const b = &m->base; | |
14a5cf38 JH |
4634 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { |
4635 | /* | |
71200d45 | 4636 | * Already have a readbuffer in progress |
14a5cf38 JH |
4637 | */ |
4638 | return b->buf; | |
4639 | } | |
4640 | if (b->buf) { | |
4641 | /* | |
71200d45 | 4642 | * We have a write buffer or flushed PerlIOBuf read buffer |
14a5cf38 | 4643 | */ |
22569500 NIS |
4644 | m->bbuf = b->buf; /* save it in case we need it again */ |
4645 | b->buf = NULL; /* Clear to trigger below */ | |
14a5cf38 JH |
4646 | } |
4647 | if (!b->buf) { | |
22569500 | 4648 | PerlIOMmap_map(aTHX_ f); /* Try and map it */ |
14a5cf38 JH |
4649 | if (!b->buf) { |
4650 | /* | |
71200d45 | 4651 | * Map did not work - recover PerlIOBuf buffer if we have one |
14a5cf38 JH |
4652 | */ |
4653 | b->buf = m->bbuf; | |
4654 | } | |
4655 | } | |
4656 | b->ptr = b->end = b->buf; | |
4657 | if (b->buf) | |
4658 | return b->buf; | |
f62ce20a | 4659 | return PerlIOBuf_get_base(aTHX_ f); |
06da4f11 NIS |
4660 | } |
4661 | ||
4662 | SSize_t | |
f62ce20a | 4663 | PerlIOMmap_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
06da4f11 | 4664 | { |
dcda55fc AL |
4665 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4666 | PerlIOBuf * const b = &m->base; | |
14a5cf38 JH |
4667 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
4668 | PerlIO_flush(f); | |
4669 | if (b->ptr && (b->ptr - count) >= b->buf | |
4670 | && memEQ(b->ptr - count, vbuf, count)) { | |
4671 | b->ptr -= count; | |
4672 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
4673 | return count; | |
4674 | } | |
4675 | if (m->len) { | |
4676 | /* | |
71200d45 | 4677 | * Loose the unwritable mapped buffer |
14a5cf38 JH |
4678 | */ |
4679 | PerlIO_flush(f); | |
4680 | /* | |
71200d45 | 4681 | * If flush took the "buffer" see if we have one from before |
14a5cf38 JH |
4682 | */ |
4683 | if (!b->buf && m->bbuf) | |
4684 | b->buf = m->bbuf; | |
4685 | if (!b->buf) { | |
f62ce20a | 4686 | PerlIOBuf_get_base(aTHX_ f); |
14a5cf38 JH |
4687 | m->bbuf = b->buf; |
4688 | } | |
4689 | } | |
f62ce20a | 4690 | return PerlIOBuf_unread(aTHX_ f, vbuf, count); |
06da4f11 NIS |
4691 | } |
4692 | ||
4693 | SSize_t | |
f62ce20a | 4694 | PerlIOMmap_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
06da4f11 | 4695 | { |
de009b76 AL |
4696 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4697 | PerlIOBuf * const b = &m->base; | |
4698 | ||
14a5cf38 JH |
4699 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) { |
4700 | /* | |
71200d45 | 4701 | * No, or wrong sort of, buffer |
14a5cf38 JH |
4702 | */ |
4703 | if (m->len) { | |
e87a358a | 4704 | if (PerlIOMmap_unmap(aTHX_ f) != 0) |
14a5cf38 JH |
4705 | return 0; |
4706 | } | |
4707 | /* | |
71200d45 | 4708 | * If unmap took the "buffer" see if we have one from before |
14a5cf38 JH |
4709 | */ |
4710 | if (!b->buf && m->bbuf) | |
4711 | b->buf = m->bbuf; | |
4712 | if (!b->buf) { | |
f62ce20a | 4713 | PerlIOBuf_get_base(aTHX_ f); |
14a5cf38 JH |
4714 | m->bbuf = b->buf; |
4715 | } | |
06da4f11 | 4716 | } |
f62ce20a | 4717 | return PerlIOBuf_write(aTHX_ f, vbuf, count); |
06da4f11 NIS |
4718 | } |
4719 | ||
4720 | IV | |
f62ce20a | 4721 | PerlIOMmap_flush(pTHX_ PerlIO *f) |
06da4f11 | 4722 | { |
dcda55fc AL |
4723 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4724 | PerlIOBuf * const b = &m->base; | |
f62ce20a | 4725 | IV code = PerlIOBuf_flush(aTHX_ f); |
14a5cf38 | 4726 | /* |
71200d45 | 4727 | * Now we are "synced" at PerlIOBuf level |
14a5cf38 JH |
4728 | */ |
4729 | if (b->buf) { | |
4730 | if (m->len) { | |
4731 | /* | |
71200d45 | 4732 | * Unmap the buffer |
14a5cf38 | 4733 | */ |
e87a358a | 4734 | if (PerlIOMmap_unmap(aTHX_ f) != 0) |
14a5cf38 JH |
4735 | code = -1; |
4736 | } | |
4737 | else { | |
4738 | /* | |
4739 | * We seem to have a PerlIOBuf buffer which was not mapped | |
71200d45 | 4740 | * remember it in case we need one later |
14a5cf38 JH |
4741 | */ |
4742 | m->bbuf = b->buf; | |
4743 | } | |
4744 | } | |
4745 | return code; | |
06da4f11 NIS |
4746 | } |
4747 | ||
4748 | IV | |
f62ce20a | 4749 | PerlIOMmap_fill(pTHX_ PerlIO *f) |
06da4f11 | 4750 | { |
dcda55fc | 4751 | PerlIOBuf * const b = PerlIOSelf(f, PerlIOBuf); |
14a5cf38 JH |
4752 | IV code = PerlIO_flush(f); |
4753 | if (code == 0 && !b->buf) { | |
f62ce20a | 4754 | code = PerlIOMmap_map(aTHX_ f); |
14a5cf38 JH |
4755 | } |
4756 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) { | |
f62ce20a | 4757 | code = PerlIOBuf_fill(aTHX_ f); |
14a5cf38 JH |
4758 | } |
4759 | return code; | |
06da4f11 NIS |
4760 | } |
4761 | ||
4762 | IV | |
f62ce20a | 4763 | PerlIOMmap_close(pTHX_ PerlIO *f) |
06da4f11 | 4764 | { |
dcda55fc AL |
4765 | PerlIOMmap * const m = PerlIOSelf(f, PerlIOMmap); |
4766 | PerlIOBuf * const b = &m->base; | |
14a5cf38 JH |
4767 | IV code = PerlIO_flush(f); |
4768 | if (m->bbuf) { | |
4769 | b->buf = m->bbuf; | |
4770 | m->bbuf = NULL; | |
4771 | b->ptr = b->end = b->buf; | |
4772 | } | |
f62ce20a | 4773 | if (PerlIOBuf_close(aTHX_ f) != 0) |
14a5cf38 JH |
4774 | code = -1; |
4775 | return code; | |
06da4f11 NIS |
4776 | } |
4777 | ||
71200d45 | 4778 | PerlIO * |
ecdeb87c | 4779 | PerlIOMmap_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags) |
71200d45 | 4780 | { |
ecdeb87c | 4781 | return PerlIOBase_dup(aTHX_ f, o, param, flags); |
71200d45 NIS |
4782 | } |
4783 | ||
06da4f11 | 4784 | |
27da23d5 | 4785 | PERLIO_FUNCS_DECL(PerlIO_mmap) = { |
2dc2558e | 4786 | sizeof(PerlIO_funcs), |
14a5cf38 JH |
4787 | "mmap", |
4788 | sizeof(PerlIOMmap), | |
86e05cf2 | 4789 | PERLIO_K_BUFFERED|PERLIO_K_RAW, |
14a5cf38 | 4790 | PerlIOBuf_pushed, |
44798d05 | 4791 | PerlIOBuf_popped, |
14a5cf38 | 4792 | PerlIOBuf_open, |
86e05cf2 | 4793 | PerlIOBase_binmode, /* binmode */ |
14a5cf38 JH |
4794 | NULL, |
4795 | PerlIOBase_fileno, | |
71200d45 | 4796 | PerlIOMmap_dup, |
14a5cf38 JH |
4797 | PerlIOBuf_read, |
4798 | PerlIOMmap_unread, | |
4799 | PerlIOMmap_write, | |
4800 | PerlIOBuf_seek, | |
4801 | PerlIOBuf_tell, | |
4802 | PerlIOBuf_close, | |
4803 | PerlIOMmap_flush, | |
4804 | PerlIOMmap_fill, | |
4805 | PerlIOBase_eof, | |
4806 | PerlIOBase_error, | |
4807 | PerlIOBase_clearerr, | |
4808 | PerlIOBase_setlinebuf, | |
4809 | PerlIOMmap_get_base, | |
4810 | PerlIOBuf_bufsiz, | |
4811 | PerlIOBuf_get_ptr, | |
4812 | PerlIOBuf_get_cnt, | |
4813 | PerlIOBuf_set_ptrcnt, | |
06da4f11 NIS |
4814 | }; |
4815 | ||
22569500 | 4816 | #endif /* HAS_MMAP */ |
06da4f11 | 4817 | |
9e353e3b | 4818 | PerlIO * |
e87a358a | 4819 | Perl_PerlIO_stdin(pTHX) |
9e353e3b | 4820 | { |
97aff369 | 4821 | dVAR; |
a1ea730d | 4822 | if (!PL_perlio) { |
14a5cf38 JH |
4823 | PerlIO_stdstreams(aTHX); |
4824 | } | |
a1ea730d | 4825 | return &PL_perlio[1]; |
9e353e3b NIS |
4826 | } |
4827 | ||
9e353e3b | 4828 | PerlIO * |
e87a358a | 4829 | Perl_PerlIO_stdout(pTHX) |
9e353e3b | 4830 | { |
97aff369 | 4831 | dVAR; |
a1ea730d | 4832 | if (!PL_perlio) { |
14a5cf38 JH |
4833 | PerlIO_stdstreams(aTHX); |
4834 | } | |
a1ea730d | 4835 | return &PL_perlio[2]; |
9e353e3b NIS |
4836 | } |
4837 | ||
9e353e3b | 4838 | PerlIO * |
e87a358a | 4839 | Perl_PerlIO_stderr(pTHX) |
9e353e3b | 4840 | { |
97aff369 | 4841 | dVAR; |
a1ea730d | 4842 | if (!PL_perlio) { |
14a5cf38 JH |
4843 | PerlIO_stdstreams(aTHX); |
4844 | } | |
a1ea730d | 4845 | return &PL_perlio[3]; |
9e353e3b NIS |
4846 | } |
4847 | ||
4848 | /*--------------------------------------------------------------------------------------*/ | |
4849 | ||
9e353e3b NIS |
4850 | char * |
4851 | PerlIO_getname(PerlIO *f, char *buf) | |
4852 | { | |
14a5cf38 | 4853 | dTHX; |
a15cef0c | 4854 | #ifdef VMS |
73d840c0 | 4855 | char *name = NULL; |
7659f319 | 4856 | bool exported = FALSE; |
14a5cf38 | 4857 | FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio; |
7659f319 CB |
4858 | if (!stdio) { |
4859 | stdio = PerlIO_exportFILE(f,0); | |
4860 | exported = TRUE; | |
4861 | } | |
4862 | if (stdio) { | |
14a5cf38 | 4863 | name = fgetname(stdio, buf); |
7659f319 CB |
4864 | if (exported) PerlIO_releaseFILE(f,stdio); |
4865 | } | |
73d840c0 | 4866 | return name; |
a15cef0c | 4867 | #else |
8772537c AL |
4868 | PERL_UNUSED_ARG(f); |
4869 | PERL_UNUSED_ARG(buf); | |
14a5cf38 | 4870 | Perl_croak(aTHX_ "Don't know how to get file name"); |
bd61b366 | 4871 | return NULL; |
a15cef0c | 4872 | #endif |
9e353e3b NIS |
4873 | } |
4874 | ||
4875 | ||
4876 | /*--------------------------------------------------------------------------------------*/ | |
14a5cf38 JH |
4877 | /* |
4878 | * Functions which can be called on any kind of PerlIO implemented in | |
71200d45 | 4879 | * terms of above |
14a5cf38 | 4880 | */ |
9e353e3b | 4881 | |
e87a358a NIS |
4882 | #undef PerlIO_fdopen |
4883 | PerlIO * | |
4884 | PerlIO_fdopen(int fd, const char *mode) | |
4885 | { | |
4886 | dTHX; | |
bd61b366 | 4887 | return PerlIO_openn(aTHX_ NULL, mode, fd, 0, 0, NULL, 0, NULL); |
e87a358a NIS |
4888 | } |
4889 | ||
4890 | #undef PerlIO_open | |
4891 | PerlIO * | |
4892 | PerlIO_open(const char *path, const char *mode) | |
4893 | { | |
4894 | dTHX; | |
42d9b98d | 4895 | SV *name = sv_2mortal(newSVpv(path, 0)); |
bd61b366 | 4896 | return PerlIO_openn(aTHX_ NULL, mode, -1, 0, 0, NULL, 1, &name); |
e87a358a NIS |
4897 | } |
4898 | ||
4899 | #undef Perlio_reopen | |
4900 | PerlIO * | |
4901 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
4902 | { | |
4903 | dTHX; | |
42d9b98d | 4904 | SV *name = sv_2mortal(newSVpv(path,0)); |
bd61b366 | 4905 | return PerlIO_openn(aTHX_ NULL, mode, -1, 0, 0, f, 1, &name); |
e87a358a NIS |
4906 | } |
4907 | ||
9e353e3b | 4908 | #undef PerlIO_getc |
6f9d8c32 | 4909 | int |
9e353e3b | 4910 | PerlIO_getc(PerlIO *f) |
760ac839 | 4911 | { |
e87a358a | 4912 | dTHX; |
14a5cf38 | 4913 | STDCHAR buf[1]; |
de009b76 | 4914 | if ( 1 == PerlIO_read(f, buf, 1) ) { |
14a5cf38 JH |
4915 | return (unsigned char) buf[0]; |
4916 | } | |
4917 | return EOF; | |
313ca112 NIS |
4918 | } |
4919 | ||
4920 | #undef PerlIO_ungetc | |
4921 | int | |
4922 | PerlIO_ungetc(PerlIO *f, int ch) | |
4923 | { | |
e87a358a | 4924 | dTHX; |
14a5cf38 JH |
4925 | if (ch != EOF) { |
4926 | STDCHAR buf = ch; | |
4927 | if (PerlIO_unread(f, &buf, 1) == 1) | |
4928 | return ch; | |
4929 | } | |
4930 | return EOF; | |
760ac839 LW |
4931 | } |
4932 | ||
9e353e3b NIS |
4933 | #undef PerlIO_putc |
4934 | int | |
4935 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 4936 | { |
e87a358a | 4937 | dTHX; |
14a5cf38 JH |
4938 | STDCHAR buf = ch; |
4939 | return PerlIO_write(f, &buf, 1); | |
760ac839 LW |
4940 | } |
4941 | ||
9e353e3b | 4942 | #undef PerlIO_puts |
760ac839 | 4943 | int |
9e353e3b | 4944 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 4945 | { |
e87a358a | 4946 | dTHX; |
dcda55fc | 4947 | return PerlIO_write(f, s, strlen(s)); |
760ac839 LW |
4948 | } |
4949 | ||
4950 | #undef PerlIO_rewind | |
4951 | void | |
c78749f2 | 4952 | PerlIO_rewind(PerlIO *f) |
760ac839 | 4953 | { |
e87a358a | 4954 | dTHX; |
14a5cf38 JH |
4955 | PerlIO_seek(f, (Off_t) 0, SEEK_SET); |
4956 | PerlIO_clearerr(f); | |
6f9d8c32 NIS |
4957 | } |
4958 | ||
4959 | #undef PerlIO_vprintf | |
4960 | int | |
4961 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
4962 | { | |
14a5cf38 | 4963 | dTHX; |
396482e1 | 4964 | SV * const sv = newSVpvs(""); |
b83604b4 | 4965 | const char *s; |
14a5cf38 JH |
4966 | STRLEN len; |
4967 | SSize_t wrote; | |
2cc61e15 | 4968 | #ifdef NEED_VA_COPY |
14a5cf38 JH |
4969 | va_list apc; |
4970 | Perl_va_copy(ap, apc); | |
4971 | sv_vcatpvf(sv, fmt, &apc); | |
2cc61e15 | 4972 | #else |
14a5cf38 | 4973 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 | 4974 | #endif |
b83604b4 | 4975 | s = SvPV_const(sv, len); |
14a5cf38 JH |
4976 | wrote = PerlIO_write(f, s, len); |
4977 | SvREFCNT_dec(sv); | |
4978 | return wrote; | |
760ac839 LW |
4979 | } |
4980 | ||
4981 | #undef PerlIO_printf | |
6f9d8c32 | 4982 | int |
14a5cf38 | 4983 | PerlIO_printf(PerlIO *f, const char *fmt, ...) |
760ac839 | 4984 | { |
14a5cf38 JH |
4985 | va_list ap; |
4986 | int result; | |
4987 | va_start(ap, fmt); | |
4988 | result = PerlIO_vprintf(f, fmt, ap); | |
4989 | va_end(ap); | |
4990 | return result; | |
760ac839 LW |
4991 | } |
4992 | ||
4993 | #undef PerlIO_stdoutf | |
6f9d8c32 | 4994 | int |
14a5cf38 | 4995 | PerlIO_stdoutf(const char *fmt, ...) |
760ac839 | 4996 | { |
e87a358a | 4997 | dTHX; |
14a5cf38 JH |
4998 | va_list ap; |
4999 | int result; | |
5000 | va_start(ap, fmt); | |
5001 | result = PerlIO_vprintf(PerlIO_stdout(), fmt, ap); | |
5002 | va_end(ap); | |
5003 | return result; | |
760ac839 LW |
5004 | } |
5005 | ||
5006 | #undef PerlIO_tmpfile | |
5007 | PerlIO * | |
c78749f2 | 5008 | PerlIO_tmpfile(void) |
760ac839 | 5009 | { |
2941a2e1 JH |
5010 | dTHX; |
5011 | PerlIO *f = NULL; | |
2941a2e1 | 5012 | #ifdef WIN32 |
de009b76 | 5013 | const int fd = win32_tmpfd(); |
2941a2e1 JH |
5014 | if (fd >= 0) |
5015 | f = PerlIO_fdopen(fd, "w+b"); | |
5016 | #else /* WIN32 */ | |
460c8493 | 5017 | # if defined(HAS_MKSTEMP) && ! defined(VMS) && ! defined(OS2) |
396482e1 | 5018 | SV * const sv = newSVpvs("/tmp/PerlIO_XXXXXX"); |
2941a2e1 JH |
5019 | /* |
5020 | * I have no idea how portable mkstemp() is ... NI-S | |
5021 | */ | |
de009b76 | 5022 | const int fd = mkstemp(SvPVX(sv)); |
2941a2e1 JH |
5023 | if (fd >= 0) { |
5024 | f = PerlIO_fdopen(fd, "w+"); | |
5025 | if (f) | |
5026 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; | |
b15aece3 | 5027 | PerlLIO_unlink(SvPVX_const(sv)); |
2941a2e1 JH |
5028 | SvREFCNT_dec(sv); |
5029 | } | |
5030 | # else /* !HAS_MKSTEMP, fallback to stdio tmpfile(). */ | |
c4420975 | 5031 | FILE * const stdio = PerlSIO_tmpfile(); |
2941a2e1 JH |
5032 | |
5033 | if (stdio) { | |
5034 | if ((f = PerlIO_push(aTHX_(PerlIO_allocate(aTHX)), | |
27da23d5 | 5035 | PERLIO_FUNCS_CAST(&PerlIO_stdio), |
a0714e2c | 5036 | "w+", NULL))) { |
c4420975 | 5037 | PerlIOStdio * const s = PerlIOSelf(f, PerlIOStdio); |
2941a2e1 JH |
5038 | |
5039 | if (s) | |
5040 | s->stdio = stdio; | |
5041 | } | |
5042 | } | |
5043 | # endif /* else HAS_MKSTEMP */ | |
5044 | #endif /* else WIN32 */ | |
5045 | return f; | |
760ac839 LW |
5046 | } |
5047 | ||
6f9d8c32 NIS |
5048 | #undef HAS_FSETPOS |
5049 | #undef HAS_FGETPOS | |
5050 | ||
22569500 NIS |
5051 | #endif /* USE_SFIO */ |
5052 | #endif /* PERLIO_IS_STDIO */ | |
760ac839 | 5053 | |
9e353e3b | 5054 | /*======================================================================================*/ |
14a5cf38 | 5055 | /* |
71200d45 NIS |
5056 | * Now some functions in terms of above which may be needed even if we are |
5057 | * not in true PerlIO mode | |
9e353e3b NIS |
5058 | */ |
5059 | ||
760ac839 LW |
5060 | #ifndef HAS_FSETPOS |
5061 | #undef PerlIO_setpos | |
5062 | int | |
766a733e | 5063 | PerlIO_setpos(PerlIO *f, SV *pos) |
760ac839 | 5064 | { |
14a5cf38 JH |
5065 | dTHX; |
5066 | if (SvOK(pos)) { | |
5067 | STRLEN len; | |
c4420975 | 5068 | const Off_t * const posn = (Off_t *) SvPV(pos, len); |
14a5cf38 JH |
5069 | if (f && len == sizeof(Off_t)) |
5070 | return PerlIO_seek(f, *posn, SEEK_SET); | |
5071 | } | |
93189314 | 5072 | SETERRNO(EINVAL, SS_IVCHAN); |
14a5cf38 | 5073 | return -1; |
760ac839 | 5074 | } |
c411622e | 5075 | #else |
c411622e | 5076 | #undef PerlIO_setpos |
5077 | int | |
766a733e | 5078 | PerlIO_setpos(PerlIO *f, SV *pos) |
c411622e | 5079 | { |
14a5cf38 JH |
5080 | dTHX; |
5081 | if (SvOK(pos)) { | |
5082 | STRLEN len; | |
c4420975 | 5083 | Fpos_t * const fpos = (Fpos_t *) SvPV(pos, len); |
14a5cf38 | 5084 | if (f && len == sizeof(Fpos_t)) { |
2d4389e4 | 5085 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
14a5cf38 | 5086 | return fsetpos64(f, fpos); |
d9b3e12d | 5087 | #else |
14a5cf38 | 5088 | return fsetpos(f, fpos); |
d9b3e12d | 5089 | #endif |
14a5cf38 | 5090 | } |
766a733e | 5091 | } |
93189314 | 5092 | SETERRNO(EINVAL, SS_IVCHAN); |
14a5cf38 | 5093 | return -1; |
c411622e | 5094 | } |
5095 | #endif | |
760ac839 LW |
5096 | |
5097 | #ifndef HAS_FGETPOS | |
5098 | #undef PerlIO_getpos | |
5099 | int | |
766a733e | 5100 | PerlIO_getpos(PerlIO *f, SV *pos) |
760ac839 | 5101 | { |
14a5cf38 JH |
5102 | dTHX; |
5103 | Off_t posn = PerlIO_tell(f); | |
5104 | sv_setpvn(pos, (char *) &posn, sizeof(posn)); | |
5105 | return (posn == (Off_t) - 1) ? -1 : 0; | |
760ac839 | 5106 | } |
c411622e | 5107 | #else |
c411622e | 5108 | #undef PerlIO_getpos |
5109 | int | |
766a733e | 5110 | PerlIO_getpos(PerlIO *f, SV *pos) |
c411622e | 5111 | { |
14a5cf38 JH |
5112 | dTHX; |
5113 | Fpos_t fpos; | |
5114 | int code; | |
2d4389e4 | 5115 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
14a5cf38 | 5116 | code = fgetpos64(f, &fpos); |
d9b3e12d | 5117 | #else |
14a5cf38 | 5118 | code = fgetpos(f, &fpos); |
d9b3e12d | 5119 | #endif |
14a5cf38 JH |
5120 | sv_setpvn(pos, (char *) &fpos, sizeof(fpos)); |
5121 | return code; | |
c411622e | 5122 | } |
5123 | #endif | |
760ac839 LW |
5124 | |
5125 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
5126 | ||
5127 | int | |
c78749f2 | 5128 | vprintf(char *pat, char *args) |
662a7e3f CS |
5129 | { |
5130 | _doprnt(pat, args, stdout); | |
22569500 | 5131 | return 0; /* wrong, but perl doesn't use the return |
14a5cf38 | 5132 | * value */ |
662a7e3f CS |
5133 | } |
5134 | ||
5135 | int | |
c78749f2 | 5136 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
5137 | { |
5138 | _doprnt(pat, args, fd); | |
22569500 | 5139 | return 0; /* wrong, but perl doesn't use the return |
14a5cf38 | 5140 | * value */ |
760ac839 LW |
5141 | } |
5142 | ||
5143 | #endif | |
5144 | ||
5145 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 5146 | int |
8ac85365 | 5147 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 | 5148 | { |
27da23d5 | 5149 | dVAR; |
e80fed9d | 5150 | #ifdef USE_VSNPRINTF |
6a841143 | 5151 | const int val = vsnprintf(s, n > 0 ? n : 0, fmt, ap); |
e80fed9d | 5152 | #else |
de009b76 | 5153 | const int val = vsprintf(s, fmt, ap); |
e80fed9d | 5154 | #endif /* #ifdef USE_VSNPRINTF */ |
14a5cf38 JH |
5155 | if (n >= 0) { |
5156 | if (strlen(s) >= (STRLEN) n) { | |
5157 | dTHX; | |
5158 | (void) PerlIO_puts(Perl_error_log, | |
5159 | "panic: sprintf overflow - memory corrupted!\n"); | |
5160 | my_exit(1); | |
5161 | } | |
760ac839 | 5162 | } |
14a5cf38 | 5163 | return val; |
760ac839 LW |
5164 | } |
5165 | #endif | |
5166 | ||
5167 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 5168 | int |
14a5cf38 | 5169 | PerlIO_sprintf(char *s, int n, const char *fmt, ...) |
760ac839 | 5170 | { |
14a5cf38 JH |
5171 | va_list ap; |
5172 | int result; | |
5173 | va_start(ap, fmt); | |
5174 | result = PerlIO_vsprintf(s, n, fmt, ap); | |
5175 | va_end(ap); | |
5176 | return result; | |
760ac839 LW |
5177 | } |
5178 | #endif | |
9cfa90c0 NC |
5179 | |
5180 | /* | |
5181 | * Local variables: | |
5182 | * c-indentation-style: bsd | |
5183 | * c-basic-offset: 4 | |
5184 | * indent-tabs-mode: t | |
5185 | * End: | |
5186 | * | |
37442d52 RGS |
5187 | * ex: set ts=8 sts=4 sw=4 noet: |
5188 | */ |