Commit | Line | Data |
cf7fe8a2 |
1 | /* |
2 | * Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved. |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the same terms as Perl itself. |
5 | */ |
6 | |
6e22d046 |
7 | #define PERL_EXT_IO |
8 | |
c5be433b |
9 | #define PERL_NO_GET_CONTEXT |
8add82fc |
10 | #include "EXTERN.h" |
760ac839 |
11 | #define PERLIO_NOT_STDIO 1 |
8add82fc |
12 | #include "perl.h" |
13 | #include "XSUB.h" |
cf7fe8a2 |
14 | #include "poll.h" |
8add82fc |
15 | #ifdef I_UNISTD |
16 | # include <unistd.h> |
17 | #endif |
cf7fe8a2 |
18 | #if defined(I_FCNTL) || defined(HAS_FCNTL) |
760ac839 |
19 | # include <fcntl.h> |
20 | #endif |
8add82fc |
21 | |
63a347c7 |
22 | #ifndef SIOCATMARK |
23 | # ifdef I_SYS_SOCKIO |
24 | # include <sys/sockio.h> |
25 | # endif |
26 | #endif |
27 | |
2a0cf753 |
28 | #ifdef PerlIO |
eb44fba6 |
29 | #if defined(MACOS_TRADITIONAL) && defined(USE_SFIO) |
824215e2 |
30 | #define PERLIO_IS_STDIO 1 |
31 | #undef setbuf |
32 | #undef setvbuf |
33 | #define setvbuf _stdsetvbuf |
34 | #define setbuf(f,b) ( __sf_setbuf(f,b) ) |
35 | #endif |
8add82fc |
36 | typedef int SysRet; |
760ac839 |
37 | typedef PerlIO * InputStream; |
38 | typedef PerlIO * OutputStream; |
2a0cf753 |
39 | #else |
40 | #define PERLIO_IS_STDIO 1 |
41 | typedef int SysRet; |
42 | typedef FILE * InputStream; |
43 | typedef FILE * OutputStream; |
44 | #endif |
8add82fc |
45 | |
cceca5ed |
46 | #define MY_start_subparse(fmt,flags) start_subparse(fmt,flags) |
cf7fe8a2 |
47 | |
48 | #ifndef gv_stashpvn |
49 | #define gv_stashpvn(str,len,flags) gv_stashpv(str,flags) |
50 | #endif |
51 | |
35a60386 |
52 | #ifndef __attribute__noreturn__ |
53 | # define __attribute__noreturn__ |
54 | #endif |
55 | |
56 | #ifndef NORETURN_FUNCTION_END |
57 | # define NORETURN_FUNCTION_END /* NOT REACHED */ return 0 |
58 | #endif |
59 | |
7698c435 |
60 | static int not_here(const char *s) __attribute__noreturn__; |
8add82fc |
61 | static int |
7698c435 |
62 | not_here(const char *s) |
8add82fc |
63 | { |
64 | croak("%s not implemented on this architecture", s); |
c38693a5 |
65 | NORETURN_FUNCTION_END; |
8add82fc |
66 | } |
67 | |
cf7fe8a2 |
68 | |
69 | #ifndef PerlIO |
70 | #define PerlIO_fileno(f) fileno(f) |
8add82fc |
71 | #endif |
cf7fe8a2 |
72 | |
73 | static int |
e87a358a |
74 | io_blocking(pTHX_ InputStream f, int block) |
cf7fe8a2 |
75 | { |
91f3b821 |
76 | #if defined(HAS_FCNTL) |
cf7fe8a2 |
77 | int RETVAL; |
78 | if(!f) { |
79 | errno = EBADF; |
80 | return -1; |
81 | } |
cf7fe8a2 |
82 | RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0); |
83 | if (RETVAL >= 0) { |
84 | int mode = RETVAL; |
3b2f3eeb |
85 | int newmode = mode; |
cf7fe8a2 |
86 | #ifdef O_NONBLOCK |
766a733e |
87 | /* POSIX style */ |
cf7fe8a2 |
88 | |
3b2f3eeb |
89 | # ifndef O_NDELAY |
90 | # define O_NDELAY O_NONBLOCK |
91 | # endif |
92 | /* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY |
6fd254a4 |
93 | * after a successful F_SETFL of an O_NONBLOCK. */ |
94 | RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1; |
95 | |
3b2f3eeb |
96 | if (block == 0) { |
97 | newmode &= ~O_NDELAY; |
98 | newmode |= O_NONBLOCK; |
99 | } else if (block > 0) { |
100 | newmode &= ~(O_NDELAY|O_NONBLOCK); |
cf7fe8a2 |
101 | } |
8add82fc |
102 | #else |
cf7fe8a2 |
103 | /* Not POSIX - better have O_NDELAY or we can't cope. |
104 | * for BSD-ish machines this is an acceptable alternative |
766a733e |
105 | * for SysV we can't tell "would block" from EOF but that is |
cf7fe8a2 |
106 | * the way SysV is... |
107 | */ |
108 | RETVAL = RETVAL & O_NDELAY ? 0 : 1; |
109 | |
3b2f3eeb |
110 | if (block == 0) { |
111 | newmode |= O_NDELAY; |
112 | } else if (block > 0) { |
113 | newmode &= ~O_NDELAY; |
114 | } |
115 | #endif |
116 | if (newmode != mode) { |
7698c435 |
117 | const int ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode); |
3b2f3eeb |
118 | if (ret < 0) |
cf7fe8a2 |
119 | RETVAL = ret; |
3b2f3eeb |
120 | } |
cf7fe8a2 |
121 | } |
122 | return RETVAL; |
8add82fc |
123 | #else |
20caf59d |
124 | # ifdef WIN32 |
5f1c7092 |
125 | char flags = (char)block; |
20caf59d |
126 | return ioctl(PerlIO_fileno(f), FIONBIO, &flags); |
127 | # else |
91f3b821 |
128 | return -1; |
20caf59d |
129 | # endif |
8add82fc |
130 | #endif |
8add82fc |
131 | } |
132 | |
8add82fc |
133 | MODULE = IO PACKAGE = IO::Seekable PREFIX = f |
134 | |
8063af02 |
135 | void |
8add82fc |
136 | fgetpos(handle) |
137 | InputStream handle |
138 | CODE: |
8add82fc |
139 | if (handle) { |
2a0cf753 |
140 | #ifdef PerlIO |
35a60386 |
141 | #if PERL_VERSION < 8 |
86413ec0 |
142 | Fpos_t pos; |
143 | ST(0) = sv_newmortal(); |
35a60386 |
144 | if (PerlIO_getpos(handle, &pos) != 0) { |
145 | ST(0) = &PL_sv_undef; |
146 | } |
147 | else { |
148 | sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t)); |
149 | } |
150 | #else |
86413ec0 |
151 | ST(0) = sv_newmortal(); |
766a733e |
152 | if (PerlIO_getpos(handle, ST(0)) != 0) { |
153 | ST(0) = &PL_sv_undef; |
154 | } |
35a60386 |
155 | #endif |
2a0cf753 |
156 | #else |
35a60386 |
157 | Fpos_t pos; |
766a733e |
158 | if (fgetpos(handle, &pos)) { |
a6a714bd |
159 | ST(0) = &PL_sv_undef; |
160 | } else { |
35a60386 |
161 | ST(0) = sv_2mortal(newSVpvn((char*)&pos, sizeof(Fpos_t))); |
a6a714bd |
162 | } |
766a733e |
163 | #endif |
8add82fc |
164 | } |
165 | else { |
8add82fc |
166 | errno = EINVAL; |
35a60386 |
167 | ST(0) = &PL_sv_undef; |
8add82fc |
168 | } |
8add82fc |
169 | |
170 | SysRet |
171 | fsetpos(handle, pos) |
172 | InputStream handle |
173 | SV * pos |
174 | CODE: |
766a733e |
175 | if (handle) { |
2a0cf753 |
176 | #ifdef PerlIO |
35a60386 |
177 | #if PERL_VERSION < 8 |
178 | char *p; |
179 | STRLEN len; |
180 | if (SvOK(pos) && (p = SvPV(pos,len)) && len == sizeof(Fpos_t)) { |
181 | RETVAL = PerlIO_setpos(handle, (Fpos_t*)p); |
182 | } |
183 | else { |
184 | RETVAL = -1; |
185 | errno = EINVAL; |
186 | } |
187 | #else |
766a733e |
188 | RETVAL = PerlIO_setpos(handle, pos); |
35a60386 |
189 | #endif |
2a0cf753 |
190 | #else |
766a733e |
191 | char *p; |
192 | STRLEN len; |
193 | if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) { |
194 | RETVAL = fsetpos(handle, (Fpos_t*)p); |
195 | } |
196 | else { |
197 | RETVAL = -1; |
198 | errno = EINVAL; |
199 | } |
2a0cf753 |
200 | #endif |
766a733e |
201 | } |
8add82fc |
202 | else { |
203 | RETVAL = -1; |
204 | errno = EINVAL; |
205 | } |
8add82fc |
206 | OUTPUT: |
207 | RETVAL |
208 | |
209 | MODULE = IO PACKAGE = IO::File PREFIX = f |
210 | |
8063af02 |
211 | void |
8add82fc |
212 | new_tmpfile(packname = "IO::File") |
3e946625 |
213 | const char * packname |
a375a877 |
214 | PREINIT: |
215 | OutputStream fp; |
216 | GV *gv; |
8add82fc |
217 | CODE: |
2a0cf753 |
218 | #ifdef PerlIO |
a375a877 |
219 | fp = PerlIO_tmpfile(); |
2a0cf753 |
220 | #else |
a375a877 |
221 | fp = tmpfile(); |
2a0cf753 |
222 | #endif |
a375a877 |
223 | gv = (GV*)SvREFCNT_inc(newGVgen(packname)); |
71cd1c3f |
224 | if (gv) |
225 | hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD); |
226 | if (gv && do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) { |
6d5cdeed |
227 | ST(0) = sv_2mortal(newRV((SV*)gv)); |
a375a877 |
228 | sv_bless(ST(0), gv_stashpv(packname, TRUE)); |
cf7fe8a2 |
229 | SvREFCNT_dec(gv); /* undo increment in newRV() */ |
a375a877 |
230 | } |
231 | else { |
a1ea39dc |
232 | ST(0) = &PL_sv_undef; |
a375a877 |
233 | SvREFCNT_dec(gv); |
234 | } |
8add82fc |
235 | |
cf7fe8a2 |
236 | MODULE = IO PACKAGE = IO::Poll |
237 | |
766a733e |
238 | void |
cf7fe8a2 |
239 | _poll(timeout,...) |
240 | int timeout; |
241 | PPCODE: |
242 | { |
243 | #ifdef HAS_POLL |
7698c435 |
244 | const int nfd = (items - 1) / 2; |
cf7fe8a2 |
245 | SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd)); |
246 | struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv); |
247 | int i,j,ret; |
248 | for(i=1, j=0 ; j < nfd ; j++) { |
249 | fds[j].fd = SvIV(ST(i)); |
250 | i++; |
7c436af3 |
251 | fds[j].events = (short)SvIV(ST(i)); |
cf7fe8a2 |
252 | i++; |
253 | fds[j].revents = 0; |
254 | } |
255 | if((ret = poll(fds,nfd,timeout)) >= 0) { |
256 | for(i=1, j=0 ; j < nfd ; j++) { |
257 | sv_setiv(ST(i), fds[j].fd); i++; |
258 | sv_setiv(ST(i), fds[j].revents); i++; |
259 | } |
260 | } |
261 | SvREFCNT_dec(tmpsv); |
262 | XSRETURN_IV(ret); |
263 | #else |
264 | not_here("IO::Poll::poll"); |
265 | #endif |
266 | } |
267 | |
268 | MODULE = IO PACKAGE = IO::Handle PREFIX = io_ |
269 | |
270 | void |
271 | io_blocking(handle,blk=-1) |
272 | InputStream handle |
273 | int blk |
274 | PROTOTYPE: $;$ |
275 | CODE: |
276 | { |
7698c435 |
277 | const int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0); |
cf7fe8a2 |
278 | if(ret >= 0) |
279 | XSRETURN_IV(ret); |
280 | else |
281 | XSRETURN_UNDEF; |
282 | } |
283 | |
8add82fc |
284 | MODULE = IO PACKAGE = IO::Handle PREFIX = f |
285 | |
8add82fc |
286 | int |
287 | ungetc(handle, c) |
288 | InputStream handle |
289 | int c |
290 | CODE: |
291 | if (handle) |
2a0cf753 |
292 | #ifdef PerlIO |
760ac839 |
293 | RETVAL = PerlIO_ungetc(handle, c); |
2a0cf753 |
294 | #else |
295 | RETVAL = ungetc(c, handle); |
296 | #endif |
8add82fc |
297 | else { |
298 | RETVAL = -1; |
299 | errno = EINVAL; |
300 | } |
301 | OUTPUT: |
302 | RETVAL |
303 | |
304 | int |
305 | ferror(handle) |
306 | InputStream handle |
307 | CODE: |
308 | if (handle) |
2a0cf753 |
309 | #ifdef PerlIO |
760ac839 |
310 | RETVAL = PerlIO_error(handle); |
2a0cf753 |
311 | #else |
312 | RETVAL = ferror(handle); |
313 | #endif |
314 | else { |
315 | RETVAL = -1; |
316 | errno = EINVAL; |
317 | } |
318 | OUTPUT: |
319 | RETVAL |
320 | |
321 | int |
322 | clearerr(handle) |
323 | InputStream handle |
324 | CODE: |
325 | if (handle) { |
326 | #ifdef PerlIO |
327 | PerlIO_clearerr(handle); |
328 | #else |
329 | clearerr(handle); |
330 | #endif |
331 | RETVAL = 0; |
332 | } |
8add82fc |
333 | else { |
334 | RETVAL = -1; |
59629a13 |
335 | errno = EINVAL; |
336 | } |
337 | OUTPUT: |
338 | RETVAL |
339 | |
340 | int |
341 | untaint(handle) |
342 | SV * handle |
343 | CODE: |
7a4c00b4 |
344 | #ifdef IOf_UNTAINT |
59629a13 |
345 | IO * io; |
346 | io = sv_2io(handle); |
347 | if (io) { |
348 | IoFLAGS(io) |= IOf_UNTAINT; |
349 | RETVAL = 0; |
350 | } |
351 | else { |
7a4c00b4 |
352 | #endif |
59629a13 |
353 | RETVAL = -1; |
8add82fc |
354 | errno = EINVAL; |
7a4c00b4 |
355 | #ifdef IOf_UNTAINT |
8add82fc |
356 | } |
7a4c00b4 |
357 | #endif |
8add82fc |
358 | OUTPUT: |
359 | RETVAL |
360 | |
361 | SysRet |
362 | fflush(handle) |
363 | OutputStream handle |
364 | CODE: |
365 | if (handle) |
2a0cf753 |
366 | #ifdef PerlIO |
760ac839 |
367 | RETVAL = PerlIO_flush(handle); |
2a0cf753 |
368 | #else |
369 | RETVAL = Fflush(handle); |
370 | #endif |
8add82fc |
371 | else { |
372 | RETVAL = -1; |
373 | errno = EINVAL; |
374 | } |
375 | OUTPUT: |
376 | RETVAL |
377 | |
378 | void |
c46a0ec2 |
379 | setbuf(handle, ...) |
8add82fc |
380 | OutputStream handle |
8add82fc |
381 | CODE: |
382 | if (handle) |
760ac839 |
383 | #ifdef PERLIO_IS_STDIO |
c46a0ec2 |
384 | { |
385 | char *buf = items == 2 && SvPOK(ST(1)) ? |
386 | sv_grow(ST(1), BUFSIZ) : 0; |
8add82fc |
387 | setbuf(handle, buf); |
c46a0ec2 |
388 | } |
760ac839 |
389 | #else |
390 | not_here("IO::Handle::setbuf"); |
391 | #endif |
8add82fc |
392 | |
393 | SysRet |
c46a0ec2 |
394 | setvbuf(...) |
8add82fc |
395 | CODE: |
c46a0ec2 |
396 | if (items != 4) |
397 | Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)"); |
1eeb0f31 |
398 | #if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF) |
c46a0ec2 |
399 | { |
400 | OutputStream handle = 0; |
401 | char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0; |
402 | int type; |
403 | int size; |
404 | |
405 | if (items == 4) { |
406 | handle = IoOFP(sv_2io(ST(0))); |
407 | buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0; |
408 | type = (int)SvIV(ST(2)); |
409 | size = (int)SvIV(ST(3)); |
410 | } |
d924de76 |
411 | if (!handle) /* Try input stream. */ |
412 | handle = IoIFP(sv_2io(ST(0))); |
c46a0ec2 |
413 | if (items == 4 && handle) |
8add82fc |
414 | RETVAL = setvbuf(handle, buf, type, size); |
415 | else { |
416 | RETVAL = -1; |
417 | errno = EINVAL; |
418 | } |
c46a0ec2 |
419 | } |
8add82fc |
420 | #else |
61839fa9 |
421 | RETVAL = (SysRet) not_here("IO::Handle::setvbuf"); |
760ac839 |
422 | #endif |
8add82fc |
423 | OUTPUT: |
424 | RETVAL |
425 | |
426 | |
cf7fe8a2 |
427 | SysRet |
428 | fsync(handle) |
429 | OutputStream handle |
430 | CODE: |
431 | #ifdef HAS_FSYNC |
432 | if(handle) |
433 | RETVAL = fsync(PerlIO_fileno(handle)); |
434 | else { |
435 | RETVAL = -1; |
436 | errno = EINVAL; |
437 | } |
438 | #else |
439 | RETVAL = (SysRet) not_here("IO::Handle::sync"); |
440 | #endif |
441 | OUTPUT: |
442 | RETVAL |
443 | |
444 | |
63a347c7 |
445 | MODULE = IO PACKAGE = IO::Socket |
446 | |
447 | SysRet |
448 | sockatmark (sock) |
449 | InputStream sock |
450 | PROTOTYPE: $ |
451 | PREINIT: |
06c912bc |
452 | int fd; |
63a347c7 |
453 | CODE: |
454 | { |
455 | fd = PerlIO_fileno(sock); |
456 | #ifdef HAS_SOCKATMARK |
06c912bc |
457 | RETVAL = sockatmark(fd); |
63a347c7 |
458 | #else |
06c912bc |
459 | { |
460 | int flag = 0; |
6d087280 |
461 | # ifdef SIOCATMARK |
6e22d046 |
462 | # if defined(NETWARE) || defined(WIN32) |
2986a63f |
463 | if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0) |
f754b6e0 |
464 | # else |
465 | if (ioctl(fd, SIOCATMARK, &flag) != 0) |
466 | # endif |
06c912bc |
467 | XSRETURN_UNDEF; |
63a347c7 |
468 | # else |
06c912bc |
469 | not_here("IO::Socket::atmark"); |
470 | # endif |
471 | RETVAL = flag; |
472 | } |
63a347c7 |
473 | #endif |
474 | } |
475 | OUTPUT: |
476 | RETVAL |
477 | |
cf7fe8a2 |
478 | BOOT: |
479 | { |
480 | HV *stash; |
481 | /* |
482 | * constant subs for IO::Poll |
483 | */ |
484 | stash = gv_stashpvn("IO::Poll", 8, TRUE); |
485 | #ifdef POLLIN |
486 | newCONSTSUB(stash,"POLLIN",newSViv(POLLIN)); |
487 | #endif |
488 | #ifdef POLLPRI |
489 | newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI)); |
490 | #endif |
491 | #ifdef POLLOUT |
492 | newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT)); |
493 | #endif |
494 | #ifdef POLLRDNORM |
495 | newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM)); |
496 | #endif |
497 | #ifdef POLLWRNORM |
498 | newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM)); |
499 | #endif |
500 | #ifdef POLLRDBAND |
501 | newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND)); |
502 | #endif |
503 | #ifdef POLLWRBAND |
504 | newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND)); |
505 | #endif |
506 | #ifdef POLLNORM |
507 | newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM)); |
508 | #endif |
509 | #ifdef POLLERR |
510 | newCONSTSUB(stash,"POLLERR", newSViv(POLLERR)); |
511 | #endif |
512 | #ifdef POLLHUP |
513 | newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP)); |
514 | #endif |
515 | #ifdef POLLNVAL |
516 | newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL)); |
517 | #endif |
518 | /* |
519 | * constant subs for IO::Handle |
520 | */ |
521 | stash = gv_stashpvn("IO::Handle", 10, TRUE); |
522 | #ifdef _IOFBF |
523 | newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF)); |
524 | #endif |
525 | #ifdef _IOLBF |
526 | newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF)); |
527 | #endif |
528 | #ifdef _IONBF |
529 | newCONSTSUB(stash,"_IONBF", newSViv(_IONBF)); |
530 | #endif |
531 | #ifdef SEEK_SET |
532 | newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET)); |
533 | #endif |
534 | #ifdef SEEK_CUR |
535 | newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR)); |
536 | #endif |
537 | #ifdef SEEK_END |
538 | newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END)); |
539 | #endif |
cf7fe8a2 |
540 | } |
63a347c7 |
541 | |