1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2013 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Jason Greene <jason@inetgurus.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 /* $Id$ */
20
21 #define PCNTL_DEBUG 0
22
23 #if PCNTL_DEBUG
24 #define DEBUG_OUT printf("DEBUG: ");printf
25 #define IF_DEBUG(z) z
26 #else
27 #define IF_DEBUG(z)
28 #endif
29
30 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33
34 #include "php.h"
35 #include "php_ini.h"
36 #include "ext/standard/info.h"
37 #include "php_pcntl.h"
38 #include "php_signal.h"
39 #include "php_ticks.h"
40
41 #if HAVE_GETPRIORITY || HAVE_SETPRIORITY || HAVE_WAIT3
42 #include <sys/wait.h>
43 #include <sys/time.h>
44 #include <sys/resource.h>
45 #endif
46
47 #include <errno.h>
48
49 ZEND_DECLARE_MODULE_GLOBALS(pcntl)
50 static PHP_GINIT_FUNCTION(pcntl);
51
52 /* {{{ arginfo */
53 ZEND_BEGIN_ARG_INFO(arginfo_pcntl_void, 0)
54 ZEND_END_ARG_INFO()
55
56 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_waitpid, 0, 0, 2)
57 ZEND_ARG_INFO(0, pid)
58 ZEND_ARG_INFO(1, status)
59 ZEND_ARG_INFO(0, options)
60 ZEND_END_ARG_INFO()
61
62 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wait, 0, 0, 1)
63 ZEND_ARG_INFO(1, status)
64 ZEND_ARG_INFO(0, options)
65 ZEND_END_ARG_INFO()
66
67 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_signal, 0, 0, 2)
68 ZEND_ARG_INFO(0, signo)
69 ZEND_ARG_INFO(0, handler)
70 ZEND_ARG_INFO(0, restart_syscalls)
71 ZEND_END_ARG_INFO()
72
73 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigprocmask, 0, 0, 2)
74 ZEND_ARG_INFO(0, how)
75 ZEND_ARG_INFO(0, set)
76 ZEND_ARG_INFO(1, oldset)
77 ZEND_END_ARG_INFO()
78
79 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigwaitinfo, 0, 0, 1)
80 ZEND_ARG_INFO(0, set)
81 ZEND_ARG_INFO(1, info)
82 ZEND_END_ARG_INFO()
83
84 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigtimedwait, 0, 0, 1)
85 ZEND_ARG_INFO(0, set)
86 ZEND_ARG_INFO(1, info)
87 ZEND_ARG_INFO(0, seconds)
88 ZEND_ARG_INFO(0, nanoseconds)
89 ZEND_END_ARG_INFO()
90
91 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifexited, 0, 0, 1)
92 ZEND_ARG_INFO(0, status)
93 ZEND_END_ARG_INFO()
94
95 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifstopped, 0, 0, 1)
96 ZEND_ARG_INFO(0, status)
97 ZEND_END_ARG_INFO()
98
99 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifsignaled, 0, 0, 1)
100 ZEND_ARG_INFO(0, status)
101 ZEND_END_ARG_INFO()
102
103 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifexitstatus, 0, 0, 1)
104 ZEND_ARG_INFO(0, status)
105 ZEND_END_ARG_INFO()
106
107 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wtermsig, 0, 0, 1)
108 ZEND_ARG_INFO(0, status)
109 ZEND_END_ARG_INFO()
110
111 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wstopsig, 0, 0, 1)
112 ZEND_ARG_INFO(0, status)
113 ZEND_END_ARG_INFO()
114
115 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_exec, 0, 0, 1)
116 ZEND_ARG_INFO(0, path)
117 ZEND_ARG_INFO(0, args)
118 ZEND_ARG_INFO(0, envs)
119 ZEND_END_ARG_INFO()
120
121 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_alarm, 0, 0, 1)
122 ZEND_ARG_INFO(0, seconds)
123 ZEND_END_ARG_INFO()
124
125 #ifdef HAVE_GETPRIORITY
126 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_getpriority, 0, 0, 0)
127 ZEND_ARG_INFO(0, pid)
128 ZEND_ARG_INFO(0, process_identifier)
129 ZEND_END_ARG_INFO()
130 #endif
131
132 #ifdef HAVE_SETPRIORITY
133 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_setpriority, 0, 0, 1)
134 ZEND_ARG_INFO(0, priority)
135 ZEND_ARG_INFO(0, pid)
136 ZEND_ARG_INFO(0, process_identifier)
137 ZEND_END_ARG_INFO()
138 #endif
139
140 ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_strerror, 0, 0, 1)
141 ZEND_ARG_INFO(0, errno)
142 ZEND_END_ARG_INFO()
143 /* }}} */
144
145 const zend_function_entry pcntl_functions[] = {
146 PHP_FE(pcntl_fork, arginfo_pcntl_void)
147 PHP_FE(pcntl_waitpid, arginfo_pcntl_waitpid)
148 PHP_FE(pcntl_wait, arginfo_pcntl_wait)
149 PHP_FE(pcntl_signal, arginfo_pcntl_signal)
150 PHP_FE(pcntl_signal_dispatch, arginfo_pcntl_void)
151 PHP_FE(pcntl_wifexited, arginfo_pcntl_wifexited)
152 PHP_FE(pcntl_wifstopped, arginfo_pcntl_wifstopped)
153 PHP_FE(pcntl_wifsignaled, arginfo_pcntl_wifsignaled)
154 PHP_FE(pcntl_wexitstatus, arginfo_pcntl_wifexitstatus)
155 PHP_FE(pcntl_wtermsig, arginfo_pcntl_wtermsig)
156 PHP_FE(pcntl_wstopsig, arginfo_pcntl_wstopsig)
157 PHP_FE(pcntl_exec, arginfo_pcntl_exec)
158 PHP_FE(pcntl_alarm, arginfo_pcntl_alarm)
159 PHP_FE(pcntl_get_last_error, arginfo_pcntl_void)
160 PHP_FALIAS(pcntl_errno, pcntl_get_last_error, NULL)
161 PHP_FE(pcntl_strerror, arginfo_pcntl_strerror)
162 #ifdef HAVE_GETPRIORITY
163 PHP_FE(pcntl_getpriority, arginfo_pcntl_getpriority)
164 #endif
165 #ifdef HAVE_SETPRIORITY
166 PHP_FE(pcntl_setpriority, arginfo_pcntl_setpriority)
167 #endif
168 #ifdef HAVE_SIGPROCMASK
169 PHP_FE(pcntl_sigprocmask, arginfo_pcntl_sigprocmask)
170 #endif
171 #if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
172 PHP_FE(pcntl_sigwaitinfo, arginfo_pcntl_sigwaitinfo)
173 PHP_FE(pcntl_sigtimedwait, arginfo_pcntl_sigtimedwait)
174 #endif
175 PHP_FE_END
176 };
177
178 zend_module_entry pcntl_module_entry = {
179 STANDARD_MODULE_HEADER,
180 "pcntl",
181 pcntl_functions,
182 PHP_MINIT(pcntl),
183 PHP_MSHUTDOWN(pcntl),
184 PHP_RINIT(pcntl),
185 PHP_RSHUTDOWN(pcntl),
186 PHP_MINFO(pcntl),
187 NO_VERSION_YET,
188 PHP_MODULE_GLOBALS(pcntl),
189 PHP_GINIT(pcntl),
190 NULL,
191 NULL,
192 STANDARD_MODULE_PROPERTIES_EX
193 };
194
195 #ifdef COMPILE_DL_PCNTL
196 ZEND_GET_MODULE(pcntl)
197 #endif
198
199 static void pcntl_signal_handler(int);
200 static void pcntl_signal_dispatch();
201
php_register_signal_constants(INIT_FUNC_ARGS)202 void php_register_signal_constants(INIT_FUNC_ARGS)
203 {
204
205 /* Wait Constants */
206 #ifdef WNOHANG
207 REGISTER_LONG_CONSTANT("WNOHANG", (long) WNOHANG, CONST_CS | CONST_PERSISTENT);
208 #endif
209 #ifdef WUNTRACED
210 REGISTER_LONG_CONSTANT("WUNTRACED", (long) WUNTRACED, CONST_CS | CONST_PERSISTENT);
211 #endif
212
213 /* Signal Constants */
214 REGISTER_LONG_CONSTANT("SIG_IGN", (long) SIG_IGN, CONST_CS | CONST_PERSISTENT);
215 REGISTER_LONG_CONSTANT("SIG_DFL", (long) SIG_DFL, CONST_CS | CONST_PERSISTENT);
216 REGISTER_LONG_CONSTANT("SIG_ERR", (long) SIG_ERR, CONST_CS | CONST_PERSISTENT);
217 REGISTER_LONG_CONSTANT("SIGHUP", (long) SIGHUP, CONST_CS | CONST_PERSISTENT);
218 REGISTER_LONG_CONSTANT("SIGINT", (long) SIGINT, CONST_CS | CONST_PERSISTENT);
219 REGISTER_LONG_CONSTANT("SIGQUIT", (long) SIGQUIT, CONST_CS | CONST_PERSISTENT);
220 REGISTER_LONG_CONSTANT("SIGILL", (long) SIGILL, CONST_CS | CONST_PERSISTENT);
221 REGISTER_LONG_CONSTANT("SIGTRAP", (long) SIGTRAP, CONST_CS | CONST_PERSISTENT);
222 REGISTER_LONG_CONSTANT("SIGABRT", (long) SIGABRT, CONST_CS | CONST_PERSISTENT);
223 #ifdef SIGIOT
224 REGISTER_LONG_CONSTANT("SIGIOT", (long) SIGIOT, CONST_CS | CONST_PERSISTENT);
225 #endif
226 REGISTER_LONG_CONSTANT("SIGBUS", (long) SIGBUS, CONST_CS | CONST_PERSISTENT);
227 REGISTER_LONG_CONSTANT("SIGFPE", (long) SIGFPE, CONST_CS | CONST_PERSISTENT);
228 REGISTER_LONG_CONSTANT("SIGKILL", (long) SIGKILL, CONST_CS | CONST_PERSISTENT);
229 REGISTER_LONG_CONSTANT("SIGUSR1", (long) SIGUSR1, CONST_CS | CONST_PERSISTENT);
230 REGISTER_LONG_CONSTANT("SIGSEGV", (long) SIGSEGV, CONST_CS | CONST_PERSISTENT);
231 REGISTER_LONG_CONSTANT("SIGUSR2", (long) SIGUSR2, CONST_CS | CONST_PERSISTENT);
232 REGISTER_LONG_CONSTANT("SIGPIPE", (long) SIGPIPE, CONST_CS | CONST_PERSISTENT);
233 REGISTER_LONG_CONSTANT("SIGALRM", (long) SIGALRM, CONST_CS | CONST_PERSISTENT);
234 REGISTER_LONG_CONSTANT("SIGTERM", (long) SIGTERM, CONST_CS | CONST_PERSISTENT);
235 #ifdef SIGSTKFLT
236 REGISTER_LONG_CONSTANT("SIGSTKFLT",(long) SIGSTKFLT, CONST_CS | CONST_PERSISTENT);
237 #endif
238 #ifdef SIGCLD
239 REGISTER_LONG_CONSTANT("SIGCLD", (long) SIGCLD, CONST_CS | CONST_PERSISTENT);
240 #endif
241 #ifdef SIGCHLD
242 REGISTER_LONG_CONSTANT("SIGCHLD", (long) SIGCHLD, CONST_CS | CONST_PERSISTENT);
243 #endif
244 REGISTER_LONG_CONSTANT("SIGCONT", (long) SIGCONT, CONST_CS | CONST_PERSISTENT);
245 REGISTER_LONG_CONSTANT("SIGSTOP", (long) SIGSTOP, CONST_CS | CONST_PERSISTENT);
246 REGISTER_LONG_CONSTANT("SIGTSTP", (long) SIGTSTP, CONST_CS | CONST_PERSISTENT);
247 REGISTER_LONG_CONSTANT("SIGTTIN", (long) SIGTTIN, CONST_CS | CONST_PERSISTENT);
248 REGISTER_LONG_CONSTANT("SIGTTOU", (long) SIGTTOU, CONST_CS | CONST_PERSISTENT);
249 REGISTER_LONG_CONSTANT("SIGURG", (long) SIGURG , CONST_CS | CONST_PERSISTENT);
250 REGISTER_LONG_CONSTANT("SIGXCPU", (long) SIGXCPU, CONST_CS | CONST_PERSISTENT);
251 REGISTER_LONG_CONSTANT("SIGXFSZ", (long) SIGXFSZ, CONST_CS | CONST_PERSISTENT);
252 REGISTER_LONG_CONSTANT("SIGVTALRM",(long) SIGVTALRM, CONST_CS | CONST_PERSISTENT);
253 REGISTER_LONG_CONSTANT("SIGPROF", (long) SIGPROF, CONST_CS | CONST_PERSISTENT);
254 REGISTER_LONG_CONSTANT("SIGWINCH", (long) SIGWINCH, CONST_CS | CONST_PERSISTENT);
255 #ifdef SIGPOLL
256 REGISTER_LONG_CONSTANT("SIGPOLL", (long) SIGPOLL, CONST_CS | CONST_PERSISTENT);
257 #endif
258 REGISTER_LONG_CONSTANT("SIGIO", (long) SIGIO, CONST_CS | CONST_PERSISTENT);
259 #ifdef SIGPWR
260 REGISTER_LONG_CONSTANT("SIGPWR", (long) SIGPWR, CONST_CS | CONST_PERSISTENT);
261 #endif
262 #ifdef SIGSYS
263 REGISTER_LONG_CONSTANT("SIGSYS", (long) SIGSYS, CONST_CS | CONST_PERSISTENT);
264 REGISTER_LONG_CONSTANT("SIGBABY", (long) SIGSYS, CONST_CS | CONST_PERSISTENT);
265 #endif
266
267 #if HAVE_GETPRIORITY || HAVE_SETPRIORITY
268 REGISTER_LONG_CONSTANT("PRIO_PGRP", PRIO_PGRP, CONST_CS | CONST_PERSISTENT);
269 REGISTER_LONG_CONSTANT("PRIO_USER", PRIO_USER, CONST_CS | CONST_PERSISTENT);
270 REGISTER_LONG_CONSTANT("PRIO_PROCESS", PRIO_PROCESS, CONST_CS | CONST_PERSISTENT);
271 #endif
272
273 /* {{{ "how" argument for sigprocmask */
274 #ifdef HAVE_SIGPROCMASK
275 REGISTER_LONG_CONSTANT("SIG_BLOCK", SIG_BLOCK, CONST_CS | CONST_PERSISTENT);
276 REGISTER_LONG_CONSTANT("SIG_UNBLOCK", SIG_UNBLOCK, CONST_CS | CONST_PERSISTENT);
277 REGISTER_LONG_CONSTANT("SIG_SETMASK", SIG_SETMASK, CONST_CS | CONST_PERSISTENT);
278 #endif
279 /* }}} */
280
281 /* {{{ si_code */
282 #if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
283 REGISTER_LONG_CONSTANT("SI_USER", SI_USER, CONST_CS | CONST_PERSISTENT);
284 #ifdef SI_NOINFO
285 REGISTER_LONG_CONSTANT("SI_NOINFO", SI_NOINFO, CONST_CS | CONST_PERSISTENT);
286 #endif
287 #ifdef SI_KERNEL
288 REGISTER_LONG_CONSTANT("SI_KERNEL", SI_KERNEL, CONST_CS | CONST_PERSISTENT);
289 #endif
290 REGISTER_LONG_CONSTANT("SI_QUEUE", SI_QUEUE, CONST_CS | CONST_PERSISTENT);
291 REGISTER_LONG_CONSTANT("SI_TIMER", SI_TIMER, CONST_CS | CONST_PERSISTENT);
292 REGISTER_LONG_CONSTANT("SI_MESGQ", SI_MESGQ, CONST_CS | CONST_PERSISTENT);
293 REGISTER_LONG_CONSTANT("SI_ASYNCIO", SI_ASYNCIO, CONST_CS | CONST_PERSISTENT);
294 #ifdef SI_SIGIO
295 REGISTER_LONG_CONSTANT("SI_SIGIO", SI_SIGIO, CONST_CS | CONST_PERSISTENT);
296 #endif
297 #ifdef SI_TKILL
298 REGISTER_LONG_CONSTANT("SI_TKILL", SI_TKILL, CONST_CS | CONST_PERSISTENT);
299 #endif
300
301 /* si_code for SIGCHILD */
302 #ifdef CLD_EXITED
303 REGISTER_LONG_CONSTANT("CLD_EXITED", CLD_EXITED, CONST_CS | CONST_PERSISTENT);
304 #endif
305 #ifdef CLD_KILLED
306 REGISTER_LONG_CONSTANT("CLD_KILLED", CLD_KILLED, CONST_CS | CONST_PERSISTENT);
307 #endif
308 #ifdef CLD_DUMPED
309 REGISTER_LONG_CONSTANT("CLD_DUMPED", CLD_DUMPED, CONST_CS | CONST_PERSISTENT);
310 #endif
311 #ifdef CLD_TRAPPED
312 REGISTER_LONG_CONSTANT("CLD_TRAPPED", CLD_TRAPPED, CONST_CS | CONST_PERSISTENT);
313 #endif
314 #ifdef CLD_STOPPED
315 REGISTER_LONG_CONSTANT("CLD_STOPPED", CLD_STOPPED, CONST_CS | CONST_PERSISTENT);
316 #endif
317 #ifdef CLD_CONTINUED
318 REGISTER_LONG_CONSTANT("CLD_CONTINUED", CLD_CONTINUED, CONST_CS | CONST_PERSISTENT);
319 #endif
320
321 /* si_code for SIGTRAP */
322 #ifdef TRAP_BRKPT
323 REGISTER_LONG_CONSTANT("TRAP_BRKPT", TRAP_BRKPT, CONST_CS | CONST_PERSISTENT);
324 #endif
325 #ifdef TRAP_TRACE
326 REGISTER_LONG_CONSTANT("TRAP_TRACE", TRAP_TRACE, CONST_CS | CONST_PERSISTENT);
327 #endif
328
329 /* si_code for SIGPOLL */
330 #ifdef POLL_IN
331 REGISTER_LONG_CONSTANT("POLL_IN", POLL_IN, CONST_CS | CONST_PERSISTENT);
332 #endif
333 #ifdef POLL_OUT
334 REGISTER_LONG_CONSTANT("POLL_OUT", POLL_OUT, CONST_CS | CONST_PERSISTENT);
335 #endif
336 #ifdef POLL_MSG
337 REGISTER_LONG_CONSTANT("POLL_MSG", POLL_MSG, CONST_CS | CONST_PERSISTENT);
338 #endif
339 #ifdef POLL_ERR
340 REGISTER_LONG_CONSTANT("POLL_ERR", POLL_ERR, CONST_CS | CONST_PERSISTENT);
341 #endif
342 #ifdef POLL_PRI
343 REGISTER_LONG_CONSTANT("POLL_PRI", POLL_PRI, CONST_CS | CONST_PERSISTENT);
344 #endif
345 #ifdef POLL_HUP
346 REGISTER_LONG_CONSTANT("POLL_HUP", POLL_HUP, CONST_CS | CONST_PERSISTENT);
347 #endif
348
349 #ifdef ILL_ILLOPC
350 REGISTER_LONG_CONSTANT("ILL_ILLOPC", ILL_ILLOPC, CONST_CS | CONST_PERSISTENT);
351 #endif
352 #ifdef ILL_ILLOPN
353 REGISTER_LONG_CONSTANT("ILL_ILLOPN", ILL_ILLOPN, CONST_CS | CONST_PERSISTENT);
354 #endif
355 #ifdef ILL_ILLADR
356 REGISTER_LONG_CONSTANT("ILL_ILLADR", ILL_ILLADR, CONST_CS | CONST_PERSISTENT);
357 #endif
358 #ifdef ILL_ILLTRP
359 REGISTER_LONG_CONSTANT("ILL_ILLTRP", ILL_ILLTRP, CONST_CS | CONST_PERSISTENT);
360 #endif
361 #ifdef ILL_PRVOPC
362 REGISTER_LONG_CONSTANT("ILL_PRVOPC", ILL_PRVOPC, CONST_CS | CONST_PERSISTENT);
363 #endif
364 #ifdef ILL_PRVREG
365 REGISTER_LONG_CONSTANT("ILL_PRVREG", ILL_PRVREG, CONST_CS | CONST_PERSISTENT);
366 #endif
367 #ifdef ILL_COPROC
368 REGISTER_LONG_CONSTANT("ILL_COPROC", ILL_COPROC, CONST_CS | CONST_PERSISTENT);
369 #endif
370 #ifdef ILL_BADSTK
371 REGISTER_LONG_CONSTANT("ILL_BADSTK", ILL_BADSTK, CONST_CS | CONST_PERSISTENT);
372 #endif
373
374 #ifdef FPE_INTDIV
375 REGISTER_LONG_CONSTANT("FPE_INTDIV", FPE_INTDIV, CONST_CS | CONST_PERSISTENT);
376 #endif
377 #ifdef FPE_INTOVF
378 REGISTER_LONG_CONSTANT("FPE_INTOVF", FPE_INTOVF, CONST_CS | CONST_PERSISTENT);
379 #endif
380 #ifdef FPE_FLTDIV
381 REGISTER_LONG_CONSTANT("FPE_FLTDIV", FPE_FLTDIV, CONST_CS | CONST_PERSISTENT);
382 #endif
383 #ifdef FPE_FLTOVF
384 REGISTER_LONG_CONSTANT("FPE_FLTOVF", FPE_FLTOVF, CONST_CS | CONST_PERSISTENT);
385 #endif
386 #ifdef FPE_FLTUND
387 REGISTER_LONG_CONSTANT("FPE_FLTUND", FPE_FLTINV, CONST_CS | CONST_PERSISTENT);
388 #endif
389 #ifdef FPE_FLTRES
390 REGISTER_LONG_CONSTANT("FPE_FLTRES", FPE_FLTRES, CONST_CS | CONST_PERSISTENT);
391 #endif
392 #ifdef FPE_FLTINV
393 REGISTER_LONG_CONSTANT("FPE_FLTINV", FPE_FLTINV, CONST_CS | CONST_PERSISTENT);
394 #endif
395 #ifdef FPE_FLTSUB
396 REGISTER_LONG_CONSTANT("FPE_FLTSUB", FPE_FLTSUB, CONST_CS | CONST_PERSISTENT);
397 #endif
398
399 #ifdef SEGV_MAPERR
400 REGISTER_LONG_CONSTANT("SEGV_MAPERR", SEGV_MAPERR, CONST_CS | CONST_PERSISTENT);
401 #endif
402 #ifdef SEGV_ACCERR
403 REGISTER_LONG_CONSTANT("SEGV_ACCERR", SEGV_ACCERR, CONST_CS | CONST_PERSISTENT);
404 #endif
405
406 #ifdef BUS_ADRALN
407 REGISTER_LONG_CONSTANT("BUS_ADRALN", BUS_ADRALN, CONST_CS | CONST_PERSISTENT);
408 #endif
409 #ifdef BUS_ADRERR
410 REGISTER_LONG_CONSTANT("BUS_ADRERR", BUS_ADRERR, CONST_CS | CONST_PERSISTENT);
411 #endif
412 #ifdef BUS_OBJERR
413 REGISTER_LONG_CONSTANT("BUS_OBJERR", BUS_OBJERR, CONST_CS | CONST_PERSISTENT);
414 #endif
415 #endif /* HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT */
416 /* }}} */
417 }
418
php_pcntl_register_errno_constants(INIT_FUNC_ARGS)419 static void php_pcntl_register_errno_constants(INIT_FUNC_ARGS)
420 {
421 #ifdef EINTR
422 REGISTER_PCNTL_ERRNO_CONSTANT(EINTR);
423 #endif
424 #ifdef ECHILD
425 REGISTER_PCNTL_ERRNO_CONSTANT(ECHILD);
426 #endif
427 #ifdef EINVAL
428 REGISTER_PCNTL_ERRNO_CONSTANT(EINVAL);
429 #endif
430 #ifdef EAGAIN
431 REGISTER_PCNTL_ERRNO_CONSTANT(EAGAIN);
432 #endif
433 #ifdef ESRCH
434 REGISTER_PCNTL_ERRNO_CONSTANT(ESRCH);
435 #endif
436 #ifdef EACCES
437 REGISTER_PCNTL_ERRNO_CONSTANT(EACCES);
438 #endif
439 #ifdef EPERM
440 REGISTER_PCNTL_ERRNO_CONSTANT(EPERM);
441 #endif
442 #ifdef ENOMEM
443 REGISTER_PCNTL_ERRNO_CONSTANT(ENOMEM);
444 #endif
445 #ifdef E2BIG
446 REGISTER_PCNTL_ERRNO_CONSTANT(E2BIG);
447 #endif
448 #ifdef EFAULT
449 REGISTER_PCNTL_ERRNO_CONSTANT(EFAULT);
450 #endif
451 #ifdef EIO
452 REGISTER_PCNTL_ERRNO_CONSTANT(EIO);
453 #endif
454 #ifdef EISDIR
455 REGISTER_PCNTL_ERRNO_CONSTANT(EISDIR);
456 #endif
457 #ifdef ELIBBAD
458 REGISTER_PCNTL_ERRNO_CONSTANT(ELIBBAD);
459 #endif
460 #ifdef ELOOP
461 REGISTER_PCNTL_ERRNO_CONSTANT(ELOOP);
462 #endif
463 #ifdef EMFILE
464 REGISTER_PCNTL_ERRNO_CONSTANT(EMFILE);
465 #endif
466 #ifdef ENAMETOOLONG
467 REGISTER_PCNTL_ERRNO_CONSTANT(ENAMETOOLONG);
468 #endif
469 #ifdef ENFILE
470 REGISTER_PCNTL_ERRNO_CONSTANT(ENFILE);
471 #endif
472 #ifdef ENOENT
473 REGISTER_PCNTL_ERRNO_CONSTANT(ENOENT);
474 #endif
475 #ifdef ENOEXEC
476 REGISTER_PCNTL_ERRNO_CONSTANT(ENOEXEC);
477 #endif
478 #ifdef ENOTDIR
479 REGISTER_PCNTL_ERRNO_CONSTANT(ENOTDIR);
480 #endif
481 #ifdef ETXTBSY
482 REGISTER_PCNTL_ERRNO_CONSTANT(ETXTBSY);
483 #endif
484 }
485
PHP_GINIT_FUNCTION(pcntl)486 static PHP_GINIT_FUNCTION(pcntl)
487 {
488 memset(pcntl_globals, 0, sizeof(*pcntl_globals));
489 }
490
PHP_RINIT_FUNCTION(pcntl)491 PHP_RINIT_FUNCTION(pcntl)
492 {
493 zend_hash_init(&PCNTL_G(php_signal_table), 16, NULL, ZVAL_PTR_DTOR, 0);
494 PCNTL_G(head) = PCNTL_G(tail) = PCNTL_G(spares) = NULL;
495 return SUCCESS;
496 }
497
PHP_MINIT_FUNCTION(pcntl)498 PHP_MINIT_FUNCTION(pcntl)
499 {
500 php_register_signal_constants(INIT_FUNC_ARGS_PASSTHRU);
501 php_pcntl_register_errno_constants(INIT_FUNC_ARGS_PASSTHRU);
502 php_add_tick_function(pcntl_signal_dispatch);
503
504 return SUCCESS;
505 }
506
PHP_MSHUTDOWN_FUNCTION(pcntl)507 PHP_MSHUTDOWN_FUNCTION(pcntl)
508 {
509 return SUCCESS;
510 }
511
PHP_RSHUTDOWN_FUNCTION(pcntl)512 PHP_RSHUTDOWN_FUNCTION(pcntl)
513 {
514 struct php_pcntl_pending_signal *sig;
515
516 /* FIXME: if a signal is delivered after this point, things will go pear shaped;
517 * need to remove signal handlers */
518 zend_hash_destroy(&PCNTL_G(php_signal_table));
519 while (PCNTL_G(head)) {
520 sig = PCNTL_G(head);
521 PCNTL_G(head) = sig->next;
522 efree(sig);
523 }
524 while (PCNTL_G(spares)) {
525 sig = PCNTL_G(spares);
526 PCNTL_G(spares) = sig->next;
527 efree(sig);
528 }
529 return SUCCESS;
530 }
531
PHP_MINFO_FUNCTION(pcntl)532 PHP_MINFO_FUNCTION(pcntl)
533 {
534 php_info_print_table_start();
535 php_info_print_table_header(2, "pcntl support", "enabled");
536 php_info_print_table_end();
537 }
538
539 /* {{{ proto int pcntl_fork(void)
540 Forks the currently running process following the same behavior as the UNIX fork() system call*/
PHP_FUNCTION(pcntl_fork)541 PHP_FUNCTION(pcntl_fork)
542 {
543 pid_t id;
544
545 id = fork();
546 if (id == -1) {
547 PCNTL_G(last_error) = errno;
548 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d", errno);
549 }
550
551 RETURN_LONG((long) id);
552 }
553 /* }}} */
554
555 /* {{{ proto int pcntl_alarm(int seconds)
556 Set an alarm clock for delivery of a signal*/
PHP_FUNCTION(pcntl_alarm)557 PHP_FUNCTION(pcntl_alarm)
558 {
559 long seconds;
560
561 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &seconds) == FAILURE)
562 return;
563
564 RETURN_LONG ((long) alarm(seconds));
565 }
566 /* }}} */
567
568 /* {{{ proto int pcntl_waitpid(int pid, int &status, int options)
569 Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_waitpid)570 PHP_FUNCTION(pcntl_waitpid)
571 {
572 long pid, options = 0;
573 zval *z_status = NULL;
574 int status;
575 pid_t child_id;
576
577 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lz|l", &pid, &z_status, &options) == FAILURE)
578 return;
579
580 convert_to_long_ex(&z_status);
581
582 status = Z_LVAL_P(z_status);
583
584 child_id = waitpid((pid_t) pid, &status, options);
585
586 if (child_id < 0) {
587 PCNTL_G(last_error) = errno;
588 }
589
590 Z_LVAL_P(z_status) = status;
591
592 RETURN_LONG((long) child_id);
593 }
594 /* }}} */
595
596 /* {{{ proto int pcntl_wait(int &status)
597 Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_wait)598 PHP_FUNCTION(pcntl_wait)
599 {
600 long options = 0;
601 zval *z_status = NULL;
602 int status;
603 pid_t child_id;
604
605 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|l", &z_status, &options) == FAILURE)
606 return;
607
608 convert_to_long_ex(&z_status);
609
610 status = Z_LVAL_P(z_status);
611 #ifdef HAVE_WAIT3
612 if(options) {
613 child_id = wait3(&status, options, NULL);
614 }
615 else {
616 child_id = wait(&status);
617 }
618 #else
619 child_id = wait(&status);
620 #endif
621 if (child_id < 0) {
622 PCNTL_G(last_error) = errno;
623 }
624
625 Z_LVAL_P(z_status) = status;
626
627 RETURN_LONG((long) child_id);
628 }
629 /* }}} */
630
631 /* {{{ proto bool pcntl_wifexited(int status)
632 Returns true if the child status code represents a successful exit */
PHP_FUNCTION(pcntl_wifexited)633 PHP_FUNCTION(pcntl_wifexited)
634 {
635 #ifdef WIFEXITED
636 long status_word;
637
638 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
639 return;
640 }
641
642 if (WIFEXITED(status_word))
643 RETURN_TRUE;
644 #endif
645 RETURN_FALSE;
646 }
647 /* }}} */
648
649 /* {{{ proto bool pcntl_wifstopped(int status)
650 Returns true if the child status code represents a stopped process (WUNTRACED must have been used with waitpid) */
PHP_FUNCTION(pcntl_wifstopped)651 PHP_FUNCTION(pcntl_wifstopped)
652 {
653 #ifdef WIFSTOPPED
654 long status_word;
655
656 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
657 return;
658 }
659
660 if (WIFSTOPPED(status_word))
661 RETURN_TRUE;
662 #endif
663 RETURN_FALSE;
664 }
665 /* }}} */
666
667 /* {{{ proto bool pcntl_wifsignaled(int status)
668 Returns true if the child status code represents a process that was terminated due to a signal */
PHP_FUNCTION(pcntl_wifsignaled)669 PHP_FUNCTION(pcntl_wifsignaled)
670 {
671 #ifdef WIFSIGNALED
672 long status_word;
673
674 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
675 return;
676 }
677
678 if (WIFSIGNALED(status_word))
679 RETURN_TRUE;
680 #endif
681 RETURN_FALSE;
682 }
683 /* }}} */
684
685 /* {{{ proto int pcntl_wexitstatus(int status)
686 Returns the status code of a child's exit */
PHP_FUNCTION(pcntl_wexitstatus)687 PHP_FUNCTION(pcntl_wexitstatus)
688 {
689 #ifdef WEXITSTATUS
690 long status_word;
691
692 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
693 return;
694 }
695
696 RETURN_LONG(WEXITSTATUS(status_word));
697 #else
698 RETURN_FALSE;
699 #endif
700 }
701 /* }}} */
702
703 /* {{{ proto int pcntl_wtermsig(int status)
704 Returns the number of the signal that terminated the process who's status code is passed */
PHP_FUNCTION(pcntl_wtermsig)705 PHP_FUNCTION(pcntl_wtermsig)
706 {
707 #ifdef WTERMSIG
708 long status_word;
709
710 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
711 return;
712 }
713
714 RETURN_LONG(WTERMSIG(status_word));
715 #else
716 RETURN_FALSE;
717 #endif
718 }
719 /* }}} */
720
721 /* {{{ proto int pcntl_wstopsig(int status)
722 Returns the number of the signal that caused the process to stop who's status code is passed */
PHP_FUNCTION(pcntl_wstopsig)723 PHP_FUNCTION(pcntl_wstopsig)
724 {
725 #ifdef WSTOPSIG
726 long status_word;
727
728 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
729 return;
730 }
731
732 RETURN_LONG(WSTOPSIG(status_word));
733 #else
734 RETURN_FALSE;
735 #endif
736 }
737 /* }}} */
738
739 /* {{{ proto bool pcntl_exec(string path [, array args [, array envs]])
740 Executes specified program in current process space as defined by exec(2) */
PHP_FUNCTION(pcntl_exec)741 PHP_FUNCTION(pcntl_exec)
742 {
743 zval *args = NULL, *envs = NULL;
744 zval **element;
745 HashTable *args_hash, *envs_hash;
746 int argc = 0, argi = 0;
747 int envc = 0, envi = 0;
748 int return_val = 0;
749 char **argv = NULL, **envp = NULL;
750 char **current_arg, **pair;
751 int pair_length;
752 char *key;
753 uint key_length;
754 char *path;
755 int path_len;
756 ulong key_num;
757
758 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|aa", &path, &path_len, &args, &envs) == FAILURE) {
759 return;
760 }
761
762 if (ZEND_NUM_ARGS() > 1) {
763 /* Build argument list */
764 args_hash = HASH_OF(args);
765 argc = zend_hash_num_elements(args_hash);
766
767 argv = safe_emalloc((argc + 2), sizeof(char *), 0);
768 *argv = path;
769 for ( zend_hash_internal_pointer_reset(args_hash), current_arg = argv+1;
770 (argi < argc && (zend_hash_get_current_data(args_hash, (void **) &element) == SUCCESS));
771 (argi++, current_arg++, zend_hash_move_forward(args_hash)) ) {
772
773 convert_to_string_ex(element);
774 *current_arg = Z_STRVAL_PP(element);
775 }
776 *(current_arg) = NULL;
777 } else {
778 argv = emalloc(2 * sizeof(char *));
779 *argv = path;
780 *(argv+1) = NULL;
781 }
782
783 if ( ZEND_NUM_ARGS() == 3 ) {
784 /* Build environment pair list */
785 envs_hash = HASH_OF(envs);
786 envc = zend_hash_num_elements(envs_hash);
787
788 envp = safe_emalloc((envc + 1), sizeof(char *), 0);
789 for ( zend_hash_internal_pointer_reset(envs_hash), pair = envp;
790 (envi < envc && (zend_hash_get_current_data(envs_hash, (void **) &element) == SUCCESS));
791 (envi++, pair++, zend_hash_move_forward(envs_hash)) ) {
792 switch (return_val = zend_hash_get_current_key_ex(envs_hash, &key, &key_length, &key_num, 0, NULL)) {
793 case HASH_KEY_IS_LONG:
794 key = emalloc(101);
795 snprintf(key, 100, "%ld", key_num);
796 key_length = strlen(key);
797 break;
798 case HASH_KEY_NON_EXISTANT:
799 pair--;
800 continue;
801 }
802
803 convert_to_string_ex(element);
804
805 /* Length of element + equal sign + length of key + null */
806 pair_length = Z_STRLEN_PP(element) + key_length + 2;
807 *pair = emalloc(pair_length);
808 strlcpy(*pair, key, key_length);
809 strlcat(*pair, "=", pair_length);
810 strlcat(*pair, Z_STRVAL_PP(element), pair_length);
811
812 /* Cleanup */
813 if (return_val == HASH_KEY_IS_LONG) efree(key);
814 }
815 *(pair) = NULL;
816
817 if (execve(path, argv, envp) == -1) {
818 PCNTL_G(last_error) = errno;
819 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error has occured: (errno %d) %s", errno, strerror(errno));
820 }
821
822 /* Cleanup */
823 for (pair = envp; *pair != NULL; pair++) efree(*pair);
824 efree(envp);
825 } else {
826
827 if (execv(path, argv) == -1) {
828 PCNTL_G(last_error) = errno;
829 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error has occured: (errno %d) %s", errno, strerror(errno));
830 }
831 }
832
833 efree(argv);
834
835 RETURN_FALSE;
836 }
837 /* }}} */
838
839 /* {{{ proto bool pcntl_signal(int signo, callback handle [, bool restart_syscalls])
840 Assigns a system signal handler to a PHP function */
PHP_FUNCTION(pcntl_signal)841 PHP_FUNCTION(pcntl_signal)
842 {
843 zval *handle, **dest_handle = NULL;
844 char *func_name;
845 long signo;
846 zend_bool restart_syscalls = 1;
847
848 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lz|b", &signo, &handle, &restart_syscalls) == FAILURE) {
849 return;
850 }
851
852 if (!PCNTL_G(spares)) {
853 /* since calling malloc() from within a signal handler is not portable,
854 * pre-allocate a few records for recording signals */
855 int i;
856 for (i = 0; i < 32; i++) {
857 struct php_pcntl_pending_signal *psig;
858
859 psig = emalloc(sizeof(*psig));
860 psig->next = PCNTL_G(spares);
861 PCNTL_G(spares) = psig;
862 }
863 }
864
865 /* Special long value case for SIG_DFL and SIG_IGN */
866 if (Z_TYPE_P(handle)==IS_LONG) {
867 if (Z_LVAL_P(handle)!= (long) SIG_DFL && Z_LVAL_P(handle) != (long) SIG_IGN) {
868 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid value for handle argument specified");
869 }
870 if (php_signal(signo, (Sigfunc *) Z_LVAL_P(handle), (int) restart_syscalls) == SIG_ERR) {
871 PCNTL_G(last_error) = errno;
872 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error assigning signal");
873 RETURN_FALSE;
874 }
875 RETURN_TRUE;
876 }
877
878 if (!zend_is_callable(handle, 0, &func_name TSRMLS_CC)) {
879 PCNTL_G(last_error) = EINVAL;
880 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s is not a callable function name error", func_name);
881 efree(func_name);
882 RETURN_FALSE;
883 }
884 efree(func_name);
885
886 /* Add the function name to our signal table */
887 zend_hash_index_update(&PCNTL_G(php_signal_table), signo, (void **) &handle, sizeof(zval *), (void **) &dest_handle);
888 if (dest_handle) zval_add_ref(dest_handle);
889
890 if (php_signal4(signo, pcntl_signal_handler, (int) restart_syscalls, 1) == SIG_ERR) {
891 PCNTL_G(last_error) = errno;
892 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error assigning signal");
893 RETURN_FALSE;
894 }
895 RETURN_TRUE;
896 }
897 /* }}} */
898
899 /* {{{ proto bool pcntl_signal_dispatch()
900 Dispatch signals to signal handlers */
PHP_FUNCTION(pcntl_signal_dispatch)901 PHP_FUNCTION(pcntl_signal_dispatch)
902 {
903 pcntl_signal_dispatch();
904 RETURN_TRUE;
905 }
906 /* }}} */
907
908 #ifdef HAVE_SIGPROCMASK
909 /* {{{ proto bool pcntl_sigprocmask(int how, array set[, array &oldset])
910 Examine and change blocked signals */
PHP_FUNCTION(pcntl_sigprocmask)911 PHP_FUNCTION(pcntl_sigprocmask)
912 {
913 long how, signo;
914 zval *user_set, *user_oldset = NULL, **user_signo;
915 sigset_t set, oldset;
916 HashPosition pos;
917
918 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "la|z", &how, &user_set, &user_oldset) == FAILURE) {
919 return;
920 }
921
922 if (sigemptyset(&set) != 0 || sigemptyset(&oldset) != 0) {
923 PCNTL_G(last_error) = errno;
924 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
925 RETURN_FALSE;
926 }
927
928 zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(user_set), &pos);
929 while (zend_hash_get_current_data_ex(Z_ARRVAL_P(user_set), (void **)&user_signo, &pos) == SUCCESS)
930 {
931 if (Z_TYPE_PP(user_signo) != IS_LONG) {
932 SEPARATE_ZVAL(user_signo);
933 convert_to_long_ex(user_signo);
934 }
935 signo = Z_LVAL_PP(user_signo);
936 if (sigaddset(&set, signo) != 0) {
937 PCNTL_G(last_error) = errno;
938 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
939 RETURN_FALSE;
940 }
941 zend_hash_move_forward_ex(Z_ARRVAL_P(user_set), &pos);
942 }
943
944 if (sigprocmask(how, &set, &oldset) != 0) {
945 PCNTL_G(last_error) = errno;
946 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
947 RETURN_FALSE;
948 }
949
950 if (user_oldset != NULL) {
951 if (Z_TYPE_P(user_oldset) != IS_ARRAY) {
952 zval_dtor(user_oldset);
953 array_init(user_oldset);
954 } else {
955 zend_hash_clean(Z_ARRVAL_P(user_oldset));
956 }
957 for (signo = 1; signo < MAX(NSIG-1, SIGRTMAX); ++signo) {
958 if (sigismember(&oldset, signo) != 1) {
959 continue;
960 }
961 add_next_index_long(user_oldset, signo);
962 }
963 }
964
965 RETURN_TRUE;
966 }
967 /* }}} */
968 #endif
969
970 #if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAMETERS,int timedwait)971 static void pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAMETERS, int timedwait) /* {{{ */
972 {
973 zval *user_set, **user_signo, *user_siginfo = NULL;
974 long tv_sec = 0, tv_nsec = 0;
975 sigset_t set;
976 HashPosition pos;
977 int signo;
978 siginfo_t siginfo;
979 struct timespec timeout;
980
981 if (timedwait) {
982 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|zll", &user_set, &user_siginfo, &tv_sec, &tv_nsec) == FAILURE) {
983 return;
984 }
985 } else {
986 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|z", &user_set, &user_siginfo) == FAILURE) {
987 return;
988 }
989 }
990
991 if (sigemptyset(&set) != 0) {
992 PCNTL_G(last_error) = errno;
993 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
994 RETURN_FALSE;
995 }
996
997 zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(user_set), &pos);
998 while (zend_hash_get_current_data_ex(Z_ARRVAL_P(user_set), (void **)&user_signo, &pos) == SUCCESS)
999 {
1000 if (Z_TYPE_PP(user_signo) != IS_LONG) {
1001 SEPARATE_ZVAL(user_signo);
1002 convert_to_long_ex(user_signo);
1003 }
1004 signo = Z_LVAL_PP(user_signo);
1005 if (sigaddset(&set, signo) != 0) {
1006 PCNTL_G(last_error) = errno;
1007 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
1008 RETURN_FALSE;
1009 }
1010 zend_hash_move_forward_ex(Z_ARRVAL_P(user_set), &pos);
1011 }
1012
1013 if (timedwait) {
1014 timeout.tv_sec = (time_t) tv_sec;
1015 timeout.tv_nsec = tv_nsec;
1016 signo = sigtimedwait(&set, &siginfo, &timeout);
1017 } else {
1018 signo = sigwaitinfo(&set, &siginfo);
1019 }
1020 if (signo == -1 && errno != EAGAIN) {
1021 PCNTL_G(last_error) = errno;
1022 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
1023 }
1024
1025 /*
1026 * sigtimedwait and sigwaitinfo can return 0 on success on some
1027 * platforms, e.g. NetBSD
1028 */
1029 if (!signo && siginfo.si_signo) {
1030 signo = siginfo.si_signo;
1031 }
1032
1033 if (signo > 0 && user_siginfo) {
1034 if (Z_TYPE_P(user_siginfo) != IS_ARRAY) {
1035 zval_dtor(user_siginfo);
1036 array_init(user_siginfo);
1037 } else {
1038 zend_hash_clean(Z_ARRVAL_P(user_siginfo));
1039 }
1040 add_assoc_long_ex(user_siginfo, "signo", sizeof("signo"), siginfo.si_signo);
1041 add_assoc_long_ex(user_siginfo, "errno", sizeof("errno"), siginfo.si_errno);
1042 add_assoc_long_ex(user_siginfo, "code", sizeof("code"), siginfo.si_code);
1043 switch(signo) {
1044 #ifdef SIGCHLD
1045 case SIGCHLD:
1046 add_assoc_long_ex(user_siginfo, "status", sizeof("status"), siginfo.si_status);
1047 # ifdef si_utime
1048 add_assoc_double_ex(user_siginfo, "utime", sizeof("utime"), siginfo.si_utime);
1049 # endif
1050 # ifdef si_stime
1051 add_assoc_double_ex(user_siginfo, "stime", sizeof("stime"), siginfo.si_stime);
1052 # endif
1053 add_assoc_long_ex(user_siginfo, "pid", sizeof("pid"), siginfo.si_pid);
1054 add_assoc_long_ex(user_siginfo, "uid", sizeof("uid"), siginfo.si_uid);
1055 break;
1056 #endif
1057 case SIGILL:
1058 case SIGFPE:
1059 case SIGSEGV:
1060 case SIGBUS:
1061 add_assoc_double_ex(user_siginfo, "addr", sizeof("addr"), (long)siginfo.si_addr);
1062 break;
1063 #ifdef SIGPOLL
1064 case SIGPOLL:
1065 add_assoc_long_ex(user_siginfo, "band", sizeof("band"), siginfo.si_band);
1066 # ifdef si_fd
1067 add_assoc_long_ex(user_siginfo, "fd", sizeof("fd"), siginfo.si_fd);
1068 # endif
1069 break;
1070 #endif
1071 EMPTY_SWITCH_DEFAULT_CASE();
1072 }
1073 }
1074
1075 RETURN_LONG(signo);
1076 }
1077 /* }}} */
1078
1079 /* {{{ proto int pcnlt_sigwaitinfo(array set[, array &siginfo])
1080 Synchronously wait for queued signals */
PHP_FUNCTION(pcntl_sigwaitinfo)1081 PHP_FUNCTION(pcntl_sigwaitinfo)
1082 {
1083 pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
1084 }
1085 /* }}} */
1086
1087 /* {{{ proto int pcntl_sigtimedwait(array set[, array &siginfo[, int seconds[, int nanoseconds]]])
1088 Wait for queued signals */
PHP_FUNCTION(pcntl_sigtimedwait)1089 PHP_FUNCTION(pcntl_sigtimedwait)
1090 {
1091 pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
1092 }
1093 /* }}} */
1094 #endif
1095
1096 #ifdef HAVE_GETPRIORITY
1097 /* {{{ proto int pcntl_getpriority([int pid [, int process_identifier]])
1098 Get the priority of any process */
PHP_FUNCTION(pcntl_getpriority)1099 PHP_FUNCTION(pcntl_getpriority)
1100 {
1101 long who = PRIO_PROCESS;
1102 long pid = getpid();
1103 int pri;
1104
1105 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll", &pid, &who) == FAILURE) {
1106 RETURN_FALSE;
1107 }
1108
1109 /* needs to be cleared, since any returned value is valid */
1110 errno = 0;
1111
1112 pri = getpriority(who, pid);
1113
1114 if (errno) {
1115 PCNTL_G(last_error) = errno;
1116 switch (errno) {
1117 case ESRCH:
1118 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: No process was located using the given parameters", errno);
1119 break;
1120 case EINVAL:
1121 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: Invalid identifier flag", errno);
1122 break;
1123 default:
1124 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown error %d has occured", errno);
1125 break;
1126 }
1127 RETURN_FALSE;
1128 }
1129
1130 RETURN_LONG(pri);
1131 }
1132 /* }}} */
1133 #endif
1134
1135 #ifdef HAVE_SETPRIORITY
1136 /* {{{ proto bool pcntl_setpriority(int priority [, int pid [, int process_identifier]])
1137 Change the priority of any process */
PHP_FUNCTION(pcntl_setpriority)1138 PHP_FUNCTION(pcntl_setpriority)
1139 {
1140 long who = PRIO_PROCESS;
1141 long pid = getpid();
1142 long pri;
1143
1144 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|ll", &pri, &pid, &who) == FAILURE) {
1145 RETURN_FALSE;
1146 }
1147
1148 if (setpriority(who, pid, pri)) {
1149 PCNTL_G(last_error) = errno;
1150 switch (errno) {
1151 case ESRCH:
1152 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: No process was located using the given parameters", errno);
1153 break;
1154 case EINVAL:
1155 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: Invalid identifier flag", errno);
1156 break;
1157 case EPERM:
1158 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: A process was located, but neither its effective nor real user ID matched the effective user ID of the caller", errno);
1159 break;
1160 case EACCES:
1161 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d: Only a super user may attempt to increase the process priority", errno);
1162 break;
1163 default:
1164 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown error %d has occured", errno);
1165 break;
1166 }
1167 RETURN_FALSE;
1168 }
1169
1170 RETURN_TRUE;
1171 }
1172 /* }}} */
1173 #endif
1174
1175 /* {{{ proto int pcntl_get_last_error(void)
1176 Retrieve the error number set by the last pcntl function which failed. */
PHP_FUNCTION(pcntl_get_last_error)1177 PHP_FUNCTION(pcntl_get_last_error)
1178 {
1179 RETURN_LONG(PCNTL_G(last_error));
1180 }
1181 /* }}} */
1182
1183 /* {{{ proto string pcntl_strerror(int errno)
1184 Retrieve the system error message associated with the given errno. */
PHP_FUNCTION(pcntl_strerror)1185 PHP_FUNCTION(pcntl_strerror)
1186 {
1187 long error;
1188
1189 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &error) == FAILURE) {
1190 RETURN_FALSE;
1191 }
1192
1193 RETURN_STRING(strerror(error), 1);
1194 }
1195 /* }}} */
1196
1197 /* Our custom signal handler that calls the appropriate php_function */
pcntl_signal_handler(int signo)1198 static void pcntl_signal_handler(int signo)
1199 {
1200 struct php_pcntl_pending_signal *psig;
1201 TSRMLS_FETCH();
1202
1203 psig = PCNTL_G(spares);
1204 if (!psig) {
1205 /* oops, too many signals for us to track, so we'll forget about this one */
1206 return;
1207 }
1208 PCNTL_G(spares) = psig->next;
1209
1210 psig->signo = signo;
1211 psig->next = NULL;
1212
1213 /* the head check is important, as the tick handler cannot atomically clear both
1214 * the head and tail */
1215 if (PCNTL_G(head) && PCNTL_G(tail)) {
1216 PCNTL_G(tail)->next = psig;
1217 } else {
1218 PCNTL_G(head) = psig;
1219 }
1220 PCNTL_G(tail) = psig;
1221 }
1222
pcntl_signal_dispatch()1223 void pcntl_signal_dispatch()
1224 {
1225 zval *param, **handle, *retval;
1226 struct php_pcntl_pending_signal *queue, *next;
1227 sigset_t mask;
1228 sigset_t old_mask;
1229 TSRMLS_FETCH();
1230
1231 /* Mask all signals */
1232 sigfillset(&mask);
1233 sigprocmask(SIG_BLOCK, &mask, &old_mask);
1234
1235 /* Bail if the queue is empty or if we are already playing the queue*/
1236 if (! PCNTL_G(head) || PCNTL_G(processing_signal_queue)) {
1237 sigprocmask(SIG_SETMASK, &old_mask, NULL);
1238 return;
1239 }
1240
1241 /* Prevent reentrant handler calls */
1242 PCNTL_G(processing_signal_queue) = 1;
1243
1244 queue = PCNTL_G(head);
1245 PCNTL_G(head) = NULL; /* simple stores are atomic */
1246
1247 /* Allocate */
1248
1249 while (queue) {
1250 if (zend_hash_index_find(&PCNTL_G(php_signal_table), queue->signo, (void **) &handle)==SUCCESS) {
1251 MAKE_STD_ZVAL(retval);
1252 MAKE_STD_ZVAL(param);
1253 ZVAL_NULL(retval);
1254 ZVAL_LONG(param, queue->signo);
1255
1256 /* Call php signal handler - Note that we do not report errors, and we ignore the return value */
1257 /* FIXME: this is probably broken when multiple signals are handled in this while loop (retval) */
1258 call_user_function(EG(function_table), NULL, *handle, retval, 1, ¶m TSRMLS_CC);
1259 zval_ptr_dtor(¶m);
1260 zval_ptr_dtor(&retval);
1261 }
1262
1263 next = queue->next;
1264 queue->next = PCNTL_G(spares);
1265 PCNTL_G(spares) = queue;
1266 queue = next;
1267 }
1268
1269 /* Re-enable queue */
1270 PCNTL_G(processing_signal_queue) = 0;
1271
1272 /* return signal mask to previous state */
1273 sigprocmask(SIG_SETMASK, &old_mask, NULL);
1274 }
1275
1276
1277
1278 /*
1279 * Local variables:
1280 * tab-width: 4
1281 * c-basic-offset: 4
1282 * indent-tabs-mode: t
1283 * End:
1284 */
1285
