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