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2009-05-15 Geoff Norton <gnorton@novell.com>
[mono-project.git] / mono / io-layer / processes.c
blob19e1b9c0a8bc745d8ff1e79e7e63322fb964b92a
1 /*
2 * processes.c: Process handles
3 *
4 * Author:
5 * Dick Porter (dick@ximian.com)
6 *
7 * (C) 2002-2006 Novell, Inc.
8 */
9
10 #include <config.h>
11 #include <glib.h>
12 #include <stdio.h>
13 #include <string.h>
14 #include <pthread.h>
15 #include <sched.h>
16 #include <sys/time.h>
17 #include <errno.h>
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include <unistd.h>
21 #include <signal.h>
22 #include <sys/wait.h>
23 #include <sys/time.h>
24 #include <sys/resource.h>
25 #include <fcntl.h>
26 #include <sys/param.h>
27 #include <ctype.h>
28
29 #ifdef HAVE_SYS_MKDEV_H
30 #include <sys/mkdev.h>
31 #endif
32
33 /* sys/resource.h (for rusage) is required when using osx 10.3 (but not 10.4) */
34 #ifdef __APPLE__
35 #include <sys/resource.h>
36 #endif
37
38 #include <mono/io-layer/wapi.h>
39 #include <mono/io-layer/wapi-private.h>
40 #include <mono/io-layer/handles-private.h>
41 #include <mono/io-layer/misc-private.h>
42 #include <mono/io-layer/mono-mutex.h>
43 #include <mono/io-layer/process-private.h>
44 #include <mono/io-layer/threads.h>
45 #include <mono/utils/strenc.h>
46 #include <mono/io-layer/timefuncs-private.h>
47
48 /* The process' environment strings */
49 #ifdef __APPLE__
50 /* Apple defines this in crt_externs.h but doesn't provide that header for
51 * arm-apple-darwin9. We'll manually define the symbol on Apple as it does
52 * in fact exist on all implementations (so far)
53 */
54 gchar ***_NSGetEnviron();
55 #define environ (*_NSGetEnviron())
56 #else
57 extern char **environ;
58 #endif
59
60 #undef DEBUG
61
62 static guint32 process_wait (gpointer handle, guint32 timeout);
63
64 struct _WapiHandleOps _wapi_process_ops = {
65 NULL, /* close_shared */
66 NULL, /* signal */
67 NULL, /* own */
68 NULL, /* is_owned */
69 process_wait, /* special_wait */
70 NULL /* prewait */
71 };
72
73 static mono_once_t process_current_once=MONO_ONCE_INIT;
74 static gpointer current_process=NULL;
75
76 static mono_once_t process_ops_once=MONO_ONCE_INIT;
77
78 static void process_ops_init (void)
79 {
80 _wapi_handle_register_capabilities (WAPI_HANDLE_PROCESS,
81 WAPI_HANDLE_CAP_WAIT |
82 WAPI_HANDLE_CAP_SPECIAL_WAIT);
83 }
84
85 static gboolean process_set_termination_details (gpointer handle, int status)
86 {
87 struct _WapiHandle_process *process_handle;
88 gboolean ok;
89 int thr_ret;
90
91 g_assert ((GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED) != _WAPI_PROCESS_UNHANDLED);
92
93 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
94 (gpointer *)&process_handle);
95 if (ok == FALSE) {
96 g_warning ("%s: error looking up process handle %p",
97 __func__, handle);
98 return(FALSE);
99 }
100
101 thr_ret = _wapi_handle_lock_shared_handles ();
102 g_assert (thr_ret == 0);
103
104 if (WIFSIGNALED(status)) {
105 process_handle->exitstatus = 128 + WTERMSIG(status);
106 } else {
107 process_handle->exitstatus = WEXITSTATUS(status);
108 }
109 _wapi_time_t_to_filetime (time(NULL), &process_handle->exit_time);
110
111 /* Don't set process_handle->waited here, it needs to only
112 * happen in the parent when wait() has been called.
113 */
114
115 #ifdef DEBUG
116 g_message ("%s: Setting handle %p pid %d signalled, exit status %d",
117 __func__, handle, process_handle->id,
118 process_handle->exitstatus);
119 #endif
120
121 _wapi_shared_handle_set_signal_state (handle, TRUE);
122
123 _wapi_handle_unlock_shared_handles ();
124
125 /* Drop the reference we hold so we have somewhere to store
126 * the exit details, now the process has in fact exited
127 */
128 _wapi_handle_unref (handle);
129
130 return (ok);
131 }
132
133 /* See if any child processes have terminated and wait() for them,
134 * updating process handle info. This function is called from the
135 * collection thread every few seconds.
136 */
137 static gboolean waitfor_pid (gpointer test, gpointer user_data)
138 {
139 struct _WapiHandle_process *process;
140 gboolean ok;
141 int status;
142 pid_t ret;
143
144 g_assert ((GPOINTER_TO_UINT (test) & _WAPI_PROCESS_UNHANDLED) != _WAPI_PROCESS_UNHANDLED);
145
146 ok = _wapi_lookup_handle (test, WAPI_HANDLE_PROCESS,
147 (gpointer *)&process);
148 if (ok == FALSE) {
149 /* The handle must have been too old and was reaped */
150 return (FALSE);
151 }
152
153 if (process->waited) {
154 /* We've already done this one */
155 return(FALSE);
156 }
157
158 do {
159 ret = waitpid (process->id, &status, WNOHANG);
160 } while (errno == EINTR);
161
162 if (ret <= 0) {
163 /* Process not ready for wait */
164 #ifdef DEBUG
165 g_message ("%s: Process %d not ready for waiting for: %s",
166 __func__, process->id, g_strerror (errno));
167 #endif
168
169 return (FALSE);
170 }
171
172 #ifdef DEBUG
173 g_message ("%s: Process %d finished", __func__, ret);
174 #endif
175
176 process->waited = TRUE;
177
178 *(int *)user_data = status;
179
180 return (TRUE);
181 }
182
183 void _wapi_process_reap (void)
184 {
185 gpointer proc;
186 int status;
187
188 #ifdef DEBUG
189 g_message ("%s: Reaping child processes", __func__);
190 #endif
191
192 do {
193 proc = _wapi_search_handle (WAPI_HANDLE_PROCESS, waitfor_pid,
194 &status, NULL, FALSE);
195 if (proc != NULL) {
196 #ifdef DEBUG
197 g_message ("%s: process handle %p exit code %d",
198 __func__, proc, status);
199 #endif
200
201 process_set_termination_details (proc, status);
202
203 /* _wapi_search_handle adds a reference, so
204 * drop it here
205 */
206 _wapi_handle_unref (proc);
207 }
208 } while (proc != NULL);
209 }
210
211 /* Limitations: This can only wait for processes that are our own
212 * children. Fixing this means resurrecting a daemon helper to manage
213 * processes.
214 */
215 static guint32 process_wait (gpointer handle, guint32 timeout)
216 {
217 struct _WapiHandle_process *process_handle;
218 gboolean ok;
219 pid_t pid, ret;
220 int status;
221
222 g_assert ((GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED) != _WAPI_PROCESS_UNHANDLED);
223
224 #ifdef DEBUG
225 g_message ("%s: Waiting for process %p", __func__, handle);
226 #endif
227
228 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
229 (gpointer *)&process_handle);
230 if (ok == FALSE) {
231 g_warning ("%s: error looking up process handle %p", __func__,
232 handle);
233 return(WAIT_FAILED);
234 }
235
236 if (process_handle->waited) {
237 /* We've already done this one */
238 #ifdef DEBUG
239 g_message ("%s: Process %p already signalled", __func__,
240 handle);
241 #endif
242
243 return (WAIT_OBJECT_0);
244 }
245
246 pid = process_handle->id;
247
248 #ifdef DEBUG
249 g_message ("%s: PID is %d, timeout %d", __func__, pid, timeout);
250 #endif
251
252 if (timeout == INFINITE) {
253 if (pid == _wapi_getpid ()) {
254 do {
255 Sleep (10000);
256 } while(1);
257 } else {
258 while ((ret = waitpid (pid, &status, 0)) != pid) {
259 if (ret == (pid_t)-1 && errno != EINTR) {
260 return(WAIT_FAILED);
261 }
262 }
263 }
264 } else if (timeout == 0) {
265 /* Just poll */
266 ret = waitpid (pid, &status, WNOHANG);
267 if (ret != pid) {
268 return (WAIT_TIMEOUT);
269 }
270 } else {
271 /* Poll in a loop */
272 if (pid == _wapi_getpid ()) {
273 Sleep (timeout);
274 return(WAIT_TIMEOUT);
275 } else {
276 do {
277 ret = waitpid (pid, &status, WNOHANG);
278 #ifdef DEBUG
279 g_message ("%s: waitpid returns: %d, timeout is %d", __func__, ret, timeout);
280 #endif
281
282 if (ret == pid) {
283 break;
284 } else if (ret == (pid_t)-1 &&
285 errno != EINTR) {
286 #ifdef DEBUG
287 g_message ("%s: waitpid failure: %s",
288 __func__,
289 g_strerror (errno));
290 #endif
291
292 if (errno == ECHILD &&
293 process_handle->waited) {
294 /* The background
295 * process reaper must
296 * have got this one
297 */
298 #ifdef DEBUG
299 g_message ("%s: Process %p already reaped", __func__, handle);
300 #endif
301
302 return(WAIT_OBJECT_0);
303 } else {
304 return(WAIT_FAILED);
305 }
306 }
307
308 _wapi_handle_spin (100);
309 timeout -= 100;
310 } while (timeout > 0);
311 }
312
313 if (timeout <= 0) {
314 return(WAIT_TIMEOUT);
315 }
316 }
317
318 /* Process must have exited */
319 #ifdef DEBUG
320 g_message ("%s: Wait done, status %d", __func__, status);
321 #endif
322
323 ok = process_set_termination_details (handle, status);
324 if (ok == FALSE) {
325 SetLastError (ERROR_OUTOFMEMORY);
326 return (WAIT_FAILED);
327 }
328 process_handle->waited = TRUE;
329
330 return(WAIT_OBJECT_0);
331 }
332
333 void _wapi_process_signal_self ()
334 {
335 if (current_process != NULL) {
336 process_set_termination_details (current_process, 0);
337 }
338 }
339
340 static void process_set_defaults (struct _WapiHandle_process *process_handle)
341 {
342 /* These seem to be the defaults on w2k */
343 process_handle->min_working_set = 204800;
344 process_handle->max_working_set = 1413120;
345
346 process_handle->waited = FALSE;
347
348 _wapi_time_t_to_filetime (time (NULL), &process_handle->create_time);
349 }
350
351 static int
352 len16 (const gunichar2 *str)
353 {
354 int len = 0;
355
356 while (*str++ != 0)
357 len++;
358
359 return len;
360 }
361
362 static gunichar2 *
363 utf16_concat (const gunichar2 *first, ...)
364 {
365 va_list args;
366 int total = 0, i;
367 const gunichar2 *s;
368 gunichar2 *ret;
369
370 va_start (args, first);
371 total += len16 (first);
372 for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg(args, gunichar2 *)){
373 total += len16 (s);
374 }
375 va_end (args);
376
377 ret = g_new (gunichar2, total + 1);
378 if (ret == NULL)
379 return NULL;
380
381 ret [total] = 0;
382 i = 0;
383 for (s = first; *s != 0; s++)
384 ret [i++] = *s;
385 va_start (args, first);
386 for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg (args, gunichar2 *)){
387 const gunichar2 *p;
388
389 for (p = s; *p != 0; p++)
390 ret [i++] = *p;
391 }
392 va_end (args);
393
394 return ret;
395 }
396
397 #ifdef PLATFORM_MACOSX
398 #include <sys/utsname.h>
399
400 /* 0 = no detection; -1 = not 10.5 or higher; 1 = 10.5 or higher */
401 static int osx_10_5_or_higher;
402
403 static void
404 detect_osx_10_5_or_higher ()
405 {
406 struct utsname u;
407 char *p;
408 int v;
409
410 if (uname (&u) != 0){
411 osx_10_5_or_higher = 1;
412 return;
413 }
414
415 p = u.release;
416 v = atoi (p);
417
418 if (v < 9)
419 osx_10_5_or_higher = -1;
420 else
421 osx_10_5_or_higher = 1;
422 }
423
424 static gboolean
425 is_macos_10_5_or_higher ()
426 {
427 if (osx_10_5_or_higher == 0)
428 detect_osx_10_5_or_higher ();
429
430 return (osx_10_5_or_higher == 1);
431 }
432 #endif
433
434 static const gunichar2 utf16_space_bytes [2] = { 0x20, 0 };
435 static const gunichar2 *utf16_space = utf16_space_bytes;
436 static const gunichar2 utf16_quote_bytes [2] = { 0x22, 0 };
437 static const gunichar2 *utf16_quote = utf16_quote_bytes;
438
439 /* Implemented as just a wrapper around CreateProcess () */
440 gboolean ShellExecuteEx (WapiShellExecuteInfo *sei)
441 {
442 gboolean ret;
443 WapiProcessInformation process_info;
444 gunichar2 *args;
445
446 if (sei == NULL) {
447 /* w2k just segfaults here, but we can do better than
448 * that
449 */
450 SetLastError (ERROR_INVALID_PARAMETER);
451 return (FALSE);
452 }
453
454 if (sei->lpFile == NULL) {
455 /* w2k returns TRUE for this, for some reason. */
456 return (TRUE);
457 }
458
459 /* Put both executable and parameters into the second argument
460 * to CreateProcess (), so it searches $PATH. The conversion
461 * into and back out of utf8 is because there is no
462 * g_strdup_printf () equivalent for gunichar2 :-(
463 */
464 args = utf16_concat (sei->lpFile, sei->lpParameters == NULL ? NULL : utf16_space, sei->lpParameters, NULL);
465 if (args == NULL){
466 SetLastError (ERROR_INVALID_DATA);
467 return (FALSE);
468 }
469 ret = CreateProcess (NULL, args, NULL, NULL, TRUE,
470 CREATE_UNICODE_ENVIRONMENT, NULL,
471 sei->lpDirectory, NULL, &process_info);
472 g_free (args);
473
474 if (!ret) {
475 static char *handler;
476 static gunichar2 *handler_utf16;
477
478 if (handler_utf16 == (gunichar2 *)-1)
479 return FALSE;
480
481 #ifdef PLATFORM_MACOSX
482 if (is_macos_10_5_or_higher ())
483 handler = g_strdup ("/usr/bin/open -W");
484 else
485 handler = g_strdup ("/usr/bin/open");
486 #else
487 /*
488 * On Linux, try: xdg-open, the FreeDesktop standard way of doing it,
489 * if that fails, try to use gnome-open, then kfmclient
490 */
491 handler = g_find_program_in_path ("xdg-open");
492 if (handler == NULL){
493 handler = g_find_program_in_path ("gnome-open");
494 if (handler == NULL){
495 handler = g_find_program_in_path ("kfmclient");
496 if (handler == NULL){
497 handler_utf16 = (gunichar2 *) -1;
498 return (FALSE);
499 } else {
500 /* kfmclient needs exec argument */
501 char *old = handler;
502 handler = g_strconcat (old, " exec",
503 NULL);
504 g_free (old);
505 }
506 }
507 }
508 #endif
509 handler_utf16 = g_utf8_to_utf16 (handler, -1, NULL, NULL, NULL);
510 g_free (handler);
511
512 /* Put quotes around the filename, in case it's a url
513 * that contains #'s (CreateProcess() calls
514 * g_shell_parse_argv(), which deliberately throws
515 * away anything after an unquoted #). Fixes bug
516 * 371567.
517 */
518 args = utf16_concat (handler_utf16, utf16_space, utf16_quote,
519 sei->lpFile, utf16_quote,
520 sei->lpParameters == NULL ? NULL : utf16_space,
521 sei->lpParameters, NULL);
522 if (args == NULL){
523 SetLastError (ERROR_INVALID_DATA);
524 return FALSE;
525 }
526 ret = CreateProcess (NULL, args, NULL, NULL, TRUE,
527 CREATE_UNICODE_ENVIRONMENT, NULL,
528 sei->lpDirectory, NULL, &process_info);
529 g_free (args);
530 if (!ret){
531 SetLastError (ERROR_INVALID_DATA);
532 return FALSE;
533 }
534 }
535
536 if (sei->fMask & SEE_MASK_NOCLOSEPROCESS) {
537 sei->hProcess = process_info.hProcess;
538 } else {
539 CloseHandle (process_info.hProcess);
540 }
541
542 return (ret);
543 }
544
545 static gboolean
546 is_managed_binary (const gchar *filename)
547 {
548 int original_errno = errno;
549 #if defined(HAVE_LARGE_FILE_SUPPORT) && defined(O_LARGEFILE)
550 int file = open (filename, O_RDONLY | O_LARGEFILE);
551 #else
552 int file = open (filename, O_RDONLY);
553 #endif
554 off_t new_offset;
555 unsigned char buffer[8];
556 off_t file_size, optional_header_offset;
557 off_t pe_header_offset;
558 gboolean managed = FALSE;
559 int num_read;
560 guint32 first_word, second_word;
561
562 /* If we are unable to open the file, then we definitely
563 * can't say that it is managed. The child mono process
564 * probably wouldn't be able to open it anyway.
565 */
566 if (file < 0) {
567 errno = original_errno;
568 return FALSE;
569 }
570
571 /* Retrieve the length of the file for future sanity checks. */
572 file_size = lseek (file, 0, SEEK_END);
573 lseek (file, 0, SEEK_SET);
574
575 /* We know we need to read a header field at offset 60. */
576 if (file_size < 64)
577 goto leave;
578
579 num_read = read (file, buffer, 2);
580
581 if ((num_read != 2) || (buffer[0] != 'M') || (buffer[1] != 'Z'))
582 goto leave;
583
584 new_offset = lseek (file, 60, SEEK_SET);
585
586 if (new_offset != 60)
587 goto leave;
588
589 num_read = read (file, buffer, 4);
590
591 if (num_read != 4)
592 goto leave;
593 pe_header_offset = buffer[0]
594 | (buffer[1] << 8)
595 | (buffer[2] << 16)
596 | (buffer[3] << 24);
597
598 if (pe_header_offset + 24 > file_size)
599 goto leave;
600
601 new_offset = lseek (file, pe_header_offset, SEEK_SET);
602
603 if (new_offset != pe_header_offset)
604 goto leave;
605
606 num_read = read (file, buffer, 4);
607
608 if ((num_read != 4) || (buffer[0] != 'P') || (buffer[1] != 'E') || (buffer[2] != 0) || (buffer[3] != 0))
609 goto leave;
610
611 /*
612 * Verify that the header we want in the optional header data
613 * is present in this binary.
614 */
615 new_offset = lseek (file, pe_header_offset + 20, SEEK_SET);
616
617 if (new_offset != pe_header_offset + 20)
618 goto leave;
619
620 num_read = read (file, buffer, 2);
621
622 if ((num_read != 2) || ((buffer[0] | (buffer[1] << 8)) < 216))
623 goto leave;
624
625 /* Read the CLR header address and size fields. These will be
626 * zero if the binary is not managed.
627 */
628 optional_header_offset = pe_header_offset + 24;
629 new_offset = lseek (file, optional_header_offset + 208, SEEK_SET);
630
631 if (new_offset != optional_header_offset + 208)
632 goto leave;
633
634 num_read = read (file, buffer, 8);
635
636 /* We are not concerned with endianness, only with
637 * whether it is zero or not.
638 */
639 first_word = *(guint32 *)&buffer[0];
640 second_word = *(guint32 *)&buffer[4];
641
642 if ((num_read != 8) || (first_word == 0) || (second_word == 0))
643 goto leave;
644
645 managed = TRUE;
646
647 leave:
648 close (file);
649 errno = original_errno;
650 return managed;
651 }
652
653 gboolean CreateProcessWithLogonW (const gunichar2 *username,
654 const gunichar2 *domain,
655 const gunichar2 *password,
656 const guint32 logonFlags,
657 const gunichar2 *appname,
658 const gunichar2 *cmdline,
659 guint32 create_flags,
660 gpointer env,
661 const gunichar2 *cwd,
662 WapiStartupInfo *startup,
663 WapiProcessInformation *process_info)
664 {
665 /* FIXME: use user information */
666 return CreateProcess (appname, cmdline, NULL, NULL, FALSE, create_flags, env, cwd, startup, process_info);
667 }
668
669 static gboolean
670 is_executable (const char *prog)
671 {
672 struct stat buf;
673 if (access (prog, X_OK) != 0)
674 return FALSE;
675 if (stat (prog, &buf))
676 return FALSE;
677 if (S_ISREG (buf.st_mode))
678 return TRUE;
679 return FALSE;
680 }
681
682 gboolean CreateProcess (const gunichar2 *appname, const gunichar2 *cmdline,
683 WapiSecurityAttributes *process_attrs G_GNUC_UNUSED,
684 WapiSecurityAttributes *thread_attrs G_GNUC_UNUSED,
685 gboolean inherit_handles, guint32 create_flags,
686 gpointer new_environ, const gunichar2 *cwd,
687 WapiStartupInfo *startup,
688 WapiProcessInformation *process_info)
689 {
690 gchar *cmd=NULL, *prog = NULL, *full_prog = NULL, *args = NULL, *args_after_prog = NULL, *dir = NULL, **env_strings = NULL, **argv = NULL;
691 guint32 i, env_count = 0;
692 gboolean ret = FALSE;
693 gpointer handle;
694 struct _WapiHandle_process process_handle = {0}, *process_handle_data;
695 GError *gerr = NULL;
696 int in_fd, out_fd, err_fd;
697 pid_t pid;
698 int thr_ret;
699
700 mono_once (&process_ops_once, process_ops_init);
701
702 /* appname and cmdline specify the executable and its args:
703 *
704 * If appname is not NULL, it is the name of the executable.
705 * Otherwise the executable is the first token in cmdline.
706 *
707 * Executable searching:
708 *
709 * If appname is not NULL, it can specify the full path and
710 * file name, or else a partial name and the current directory
711 * will be used. There is no additional searching.
712 *
713 * If appname is NULL, the first whitespace-delimited token in
714 * cmdline is used. If the name does not contain a full
715 * directory path, the search sequence is:
716 *
717 * 1) The directory containing the current process
718 * 2) The current working directory
719 * 3) The windows system directory (Ignored)
720 * 4) The windows directory (Ignored)
721 * 5) $PATH
722 *
723 * Just to make things more interesting, tokens can contain
724 * white space if they are surrounded by quotation marks. I'm
725 * beginning to understand just why windows apps are generally
726 * so crap, with an API like this :-(
727 */
728 if (appname != NULL) {
729 cmd = mono_unicode_to_external (appname);
730 if (cmd == NULL) {
731 #ifdef DEBUG
732 g_message ("%s: unicode conversion returned NULL",
733 __func__);
734 #endif
735
736 SetLastError (ERROR_PATH_NOT_FOUND);
737 goto free_strings;
738 }
739
740 /* Turn all the slashes round the right way */
741 for (i = 0; i < strlen (cmd); i++) {
742 if (cmd[i] == '\\') {
743 cmd[i] = '/';
744 }
745 }
746 }
747
748 if (cmdline != NULL) {
749 args = mono_unicode_to_external (cmdline);
750 if (args == NULL) {
751 #ifdef DEBUG
752 g_message ("%s: unicode conversion returned NULL", __func__);
753 #endif
754
755 SetLastError (ERROR_PATH_NOT_FOUND);
756 goto free_strings;
757 }
758 }
759
760 if (cwd != NULL) {
761 dir = mono_unicode_to_external (cwd);
762 if (dir == NULL) {
763 #ifdef DEBUG
764 g_message ("%s: unicode conversion returned NULL", __func__);
765 #endif
766
767 SetLastError (ERROR_PATH_NOT_FOUND);
768 goto free_strings;
769 }
770
771 /* Turn all the slashes round the right way */
772 for (i = 0; i < strlen (dir); i++) {
773 if (dir[i] == '\\') {
774 dir[i] = '/';
775 }
776 }
777 }
778
779
780 /* We can't put off locating the executable any longer :-( */
781 if (cmd != NULL) {
782 gchar *unquoted;
783 if (g_ascii_isalpha (cmd[0]) && (cmd[1] == ':')) {
784 /* Strip off the drive letter. I can't
785 * believe that CP/M holdover is still
786 * visible...
787 */
788 g_memmove (cmd, cmd+2, strlen (cmd)-2);
789 cmd[strlen (cmd)-2] = '\0';
790 }
791
792 unquoted = g_shell_unquote (cmd, NULL);
793 if (unquoted[0] == '/') {
794 /* Assume full path given */
795 prog = g_strdup (unquoted);
796
797 /* Executable existing ? */
798 if (!is_executable (prog)) {
799 #ifdef DEBUG
800 g_message ("%s: Couldn't find executable %s",
801 __func__, prog);
802 #endif
803 g_free (unquoted);
804 SetLastError (ERROR_FILE_NOT_FOUND);
805 goto free_strings;
806 }
807 } else {
808 /* Search for file named by cmd in the current
809 * directory
810 */
811 char *curdir = g_get_current_dir ();
812
813 prog = g_strdup_printf ("%s/%s", curdir, unquoted);
814 g_free (curdir);
815
816 /* And make sure it's executable */
817 if (!is_executable (prog)) {
818 #ifdef DEBUG
819 g_message ("%s: Couldn't find executable %s",
820 __func__, prog);
821 #endif
822 g_free (unquoted);
823 SetLastError (ERROR_FILE_NOT_FOUND);
824 goto free_strings;
825 }
826 }
827 g_free (unquoted);
828
829 args_after_prog = args;
830 } else {
831 gchar *token = NULL;
832 char quote;
833
834 /* Dig out the first token from args, taking quotation
835 * marks into account
836 */
837
838 /* First, strip off all leading whitespace */
839 args = g_strchug (args);
840
841 /* args_after_prog points to the contents of args
842 * after token has been set (otherwise argv[0] is
843 * duplicated)
844 */
845 args_after_prog = args;
846
847 /* Assume the opening quote will always be the first
848 * character
849 */
850 if (args[0] == '\"' || args [0] == '\'') {
851 quote = args [0];
852 for (i = 1; args[i] != '\0' && args[i] != quote; i++);
853 if (g_ascii_isspace (args[i+1])) {
854 /* We found the first token */
855 token = g_strndup (args+1, i-1);
856 args_after_prog = args + i;
857 } else {
858 /* Quotation mark appeared in the
859 * middle of the token. Just give the
860 * whole first token, quotes and all,
861 * to exec.
862 */
863 }
864 }
865
866 if (token == NULL) {
867 /* No quote mark, or malformed */
868 for (i = 0; args[i] != '\0'; i++) {
869 if (g_ascii_isspace (args[i])) {
870 token = g_strndup (args, i);
871 args_after_prog = args + i + 1;
872 break;
873 }
874 }
875 }
876
877 if (token == NULL && args[0] != '\0') {
878 /* Must be just one token in the string */
879 token = g_strdup (args);
880 args_after_prog = NULL;
881 }
882
883 if (token == NULL) {
884 /* Give up */
885 #ifdef DEBUG
886 g_message ("%s: Couldn't find what to exec", __func__);
887 #endif
888
889 SetLastError (ERROR_PATH_NOT_FOUND);
890 goto free_strings;
891 }
892
893 /* Turn all the slashes round the right way. Only for
894 * the prg. name
895 */
896 for (i = 0; i < strlen (token); i++) {
897 if (token[i] == '\\') {
898 token[i] = '/';
899 }
900 }
901
902 if (g_ascii_isalpha (token[0]) && (token[1] == ':')) {
903 /* Strip off the drive letter. I can't
904 * believe that CP/M holdover is still
905 * visible...
906 */
907 g_memmove (token, token+2, strlen (token)-2);
908 token[strlen (token)-2] = '\0';
909 }
910
911 if (token[0] == '/') {
912 /* Assume full path given */
913 prog = g_strdup (token);
914
915 /* Executable existing ? */
916 if (!is_executable (prog)) {
917 #ifdef DEBUG
918 g_message ("%s: Couldn't find executable %s",
919 __func__, token);
920 #endif
921 g_free (token);
922 SetLastError (ERROR_FILE_NOT_FOUND);
923 goto free_strings;
924 }
925
926 } else {
927 char *curdir = g_get_current_dir ();
928
929 /* FIXME: Need to record the directory
930 * containing the current process, and check
931 * that for the new executable as the first
932 * place to look
933 */
934
935 prog = g_strdup_printf ("%s/%s", curdir, token);
936 g_free (curdir);
937
938 /* I assume X_OK is the criterion to use,
939 * rather than F_OK
940 */
941 if (!is_executable (prog)) {
942 g_free (prog);
943 prog = g_find_program_in_path (token);
944 if (prog == NULL) {
945 #ifdef DEBUG
946 g_message ("%s: Couldn't find executable %s", __func__, token);
947 #endif
948
949 g_free (token);
950 SetLastError (ERROR_FILE_NOT_FOUND);
951 goto free_strings;
952 }
953 }
954 }
955
956 g_free (token);
957 }
958
959 #ifdef DEBUG
960 g_message ("%s: Exec prog [%s] args [%s]", __func__, prog,
961 args_after_prog);
962 #endif
963
964 /* Check for CLR binaries; if found, we will try to invoke
965 * them using the same mono binary that started us.
966 */
967 if (is_managed_binary (prog)) {
968 gunichar2 *newapp, *newcmd;
969 gsize bytes_ignored;
970
971 newapp = mono_unicode_from_external ("mono", &bytes_ignored);
972
973 if (newapp != NULL) {
974 if (appname != NULL) {
975 newcmd = utf16_concat (newapp, utf16_space,
976 appname, utf16_space,
977 cmdline, NULL);
978 } else {
979 newcmd = utf16_concat (newapp, utf16_space,
980 cmdline, NULL);
981 }
982
983 g_free ((gunichar2 *)newapp);
984
985 if (newcmd != NULL) {
986 ret = CreateProcess (NULL, newcmd,
987 process_attrs,
988 thread_attrs,
989 inherit_handles,
990 create_flags, new_environ,
991 cwd, startup,
992 process_info);
993
994 g_free ((gunichar2 *)newcmd);
995
996 goto free_strings;
997 }
998 }
999 }
1000
1001 if (args_after_prog != NULL && *args_after_prog) {
1002 gchar *qprog;
1003
1004 qprog = g_shell_quote (prog);
1005 full_prog = g_strconcat (qprog, " ", args_after_prog, NULL);
1006 g_free (qprog);
1007 } else {
1008 full_prog = g_shell_quote (prog);
1009 }
1010
1011 ret = g_shell_parse_argv (full_prog, NULL, &argv, &gerr);
1012 if (ret == FALSE) {
1013 /* FIXME: Could do something with the GError here
1014 */
1015 }
1016
1017 if (startup != NULL && startup->dwFlags & STARTF_USESTDHANDLES) {
1018 in_fd = GPOINTER_TO_UINT (startup->hStdInput);
1019 out_fd = GPOINTER_TO_UINT (startup->hStdOutput);
1020 err_fd = GPOINTER_TO_UINT (startup->hStdError);
1021 } else {
1022 in_fd = GPOINTER_TO_UINT (GetStdHandle (STD_INPUT_HANDLE));
1023 out_fd = GPOINTER_TO_UINT (GetStdHandle (STD_OUTPUT_HANDLE));
1024 err_fd = GPOINTER_TO_UINT (GetStdHandle (STD_ERROR_HANDLE));
1025 }
1026
1027 g_strlcpy (process_handle.proc_name, prog,
1028 _WAPI_PROC_NAME_MAX_LEN - 1);
1029
1030 process_set_defaults (&process_handle);
1031
1032 handle = _wapi_handle_new (WAPI_HANDLE_PROCESS, &process_handle);
1033 if (handle == _WAPI_HANDLE_INVALID) {
1034 g_warning ("%s: error creating process handle", __func__);
1035
1036 SetLastError (ERROR_PATH_NOT_FOUND);
1037 goto free_strings;
1038 }
1039
1040 /* Hold another reference so the process has somewhere to
1041 * store its exit data even if we drop this handle
1042 */
1043 _wapi_handle_ref (handle);
1044
1045 /* new_environ is a block of NULL-terminated strings, which
1046 * is itself NULL-terminated. Of course, passing an array of
1047 * string pointers would have made things too easy :-(
1048 *
1049 * If new_environ is not NULL it specifies the entire set of
1050 * environment variables in the new process. Otherwise the
1051 * new process inherits the same environment.
1052 */
1053 if (new_environ != NULL) {
1054 gunichar2 *new_environp;
1055
1056 /* Count the number of strings */
1057 for (new_environp = (gunichar2 *)new_environ; *new_environp;
1058 new_environp++) {
1059 env_count++;
1060 while (*new_environp) {
1061 new_environp++;
1062 }
1063 }
1064
1065 /* +2: one for the process handle value, and the last
1066 * one is NULL
1067 */
1068 env_strings = g_new0 (gchar *, env_count + 2);
1069
1070 /* Copy each environ string into 'strings' turning it
1071 * into utf8 (or the requested encoding) at the same
1072 * time
1073 */
1074 env_count = 0;
1075 for (new_environp = (gunichar2 *)new_environ; *new_environp;
1076 new_environp++) {
1077 env_strings[env_count] = mono_unicode_to_external (new_environp);
1078 env_count++;
1079 while (*new_environp) {
1080 new_environp++;
1081 }
1082 }
1083 } else {
1084 for (i = 0; environ[i] != NULL; i++) {
1085 env_count++;
1086 }
1087
1088 /* +2: one for the process handle value, and the last
1089 * one is NULL
1090 */
1091 env_strings = g_new0 (gchar *, env_count + 2);
1092
1093 /* Copy each environ string into 'strings' turning it
1094 * into utf8 (or the requested encoding) at the same
1095 * time
1096 */
1097 env_count = 0;
1098 for (i = 0; environ[i] != NULL; i++) {
1099 env_strings[env_count] = g_strdup (environ[i]);
1100 env_count++;
1101 }
1102 }
1103 /* pass process handle info to the child, so it doesn't have
1104 * to do an expensive search over the whole list
1105 */
1106 if (env_strings != NULL) {
1107 struct _WapiHandleUnshared *handle_data;
1108 struct _WapiHandle_shared_ref *ref;
1109
1110 handle_data = &_WAPI_PRIVATE_HANDLES(GPOINTER_TO_UINT(handle));
1111 ref = &handle_data->u.shared;
1112
1113 env_strings[env_count] = g_strdup_printf ("_WAPI_PROCESS_HANDLE_OFFSET=%d", ref->offset);
1114 }
1115
1116 thr_ret = _wapi_handle_lock_shared_handles ();
1117 g_assert (thr_ret == 0);
1118
1119 pid = fork ();
1120 if (pid == -1) {
1121 /* Error */
1122 SetLastError (ERROR_OUTOFMEMORY);
1123 _wapi_handle_unref (handle);
1124 goto cleanup;
1125 } else if (pid == 0) {
1126 /* Child */
1127
1128 if (_wapi_shm_disabled == FALSE) {
1129 /* Wait for the parent to finish setting up
1130 * the handle. The semaphore lock is safe
1131 * because the sem_undo structures of a
1132 * semaphore aren't inherited across a fork
1133 * (), but we can't do this if we're not using
1134 * the shared memory
1135 */
1136 thr_ret = _wapi_handle_lock_shared_handles ();
1137 g_assert (thr_ret == 0);
1138
1139 _wapi_handle_unlock_shared_handles ();
1140 }
1141
1142 /* should we detach from the process group? */
1143
1144 /* Connect stdin, stdout and stderr */
1145 dup2 (in_fd, 0);
1146 dup2 (out_fd, 1);
1147 dup2 (err_fd, 2);
1148
1149 if (inherit_handles != TRUE) {
1150 /* FIXME: do something here */
1151 }
1152
1153 /* Close all file descriptors */
1154 for (i = getdtablesize () - 1; i > 2; i--) {
1155 close (i);
1156 }
1157
1158 #ifdef DEBUG
1159 g_message ("%s: exec()ing [%s] in dir [%s]", __func__, cmd,
1160 dir==NULL?".":dir);
1161 for (i = 0; argv[i] != NULL; i++) {
1162 g_message ("arg %d: [%s]", i, argv[i]);
1163 }
1164
1165 for (i = 0; env_strings[i] != NULL; i++) {
1166 g_message ("env %d: [%s]", i, env_strings[i]);
1167 }
1168 #endif
1169
1170 /* set cwd */
1171 if (dir != NULL && chdir (dir) == -1) {
1172 /* set error */
1173 _exit (-1);
1174 }
1175
1176 /* exec */
1177 execve (argv[0], argv, env_strings);
1178
1179 /* set error */
1180 _exit (-1);
1181 }
1182 /* parent */
1183
1184 ret = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
1185 (gpointer *)&process_handle_data);
1186 if (ret == FALSE) {
1187 g_warning ("%s: error looking up process handle %p", __func__,
1188 handle);
1189 _wapi_handle_unref (handle);
1190 goto cleanup;
1191 }
1192
1193 process_handle_data->id = pid;
1194
1195 if (process_info != NULL) {
1196 process_info->hProcess = handle;
1197 process_info->dwProcessId = pid;
1198
1199 /* FIXME: we might need to handle the thread info some
1200 * day
1201 */
1202 process_info->hThread = INVALID_HANDLE_VALUE;
1203 process_info->dwThreadId = 0;
1204 }
1205
1206 cleanup:
1207 _wapi_handle_unlock_shared_handles ();
1208
1209 free_strings:
1210 if (cmd != NULL) {
1211 g_free (cmd);
1212 }
1213 if (full_prog != NULL) {
1214 g_free (full_prog);
1215 }
1216 if (prog != NULL) {
1217 g_free (prog);
1218 }
1219 if (args != NULL) {
1220 g_free (args);
1221 }
1222 if (dir != NULL) {
1223 g_free (dir);
1224 }
1225 if(env_strings != NULL) {
1226 g_strfreev (env_strings);
1227 }
1228 if (argv != NULL) {
1229 g_strfreev (argv);
1230 }
1231
1232 #ifdef DEBUG
1233 g_message ("%s: returning handle %p for pid %d", __func__, handle,
1234 pid);
1235 #endif
1236
1237 return(ret);
1238 }
1239
1240 static void process_set_name (struct _WapiHandle_process *process_handle)
1241 {
1242 gchar *progname, *utf8_progname, *slash;
1243
1244 progname=g_get_prgname ();
1245 utf8_progname=mono_utf8_from_external (progname);
1246
1247 #ifdef DEBUG
1248 g_message ("%s: using [%s] as prog name", __func__, progname);
1249 #endif
1250
1251 if(utf8_progname!=NULL) {
1252 slash=strrchr (utf8_progname, '/');
1253 if(slash!=NULL) {
1254 g_strlcpy (process_handle->proc_name, slash+1,
1255 _WAPI_PROC_NAME_MAX_LEN - 1);
1256 } else {
1257 g_strlcpy (process_handle->proc_name, utf8_progname,
1258 _WAPI_PROC_NAME_MAX_LEN - 1);
1259 }
1260
1261 g_free (utf8_progname);
1262 }
1263 }
1264
1265 extern void _wapi_time_t_to_filetime (time_t timeval, WapiFileTime *filetime);
1266
1267 #if !GLIB_CHECK_VERSION (2,4,0)
1268 #define g_setenv(a,b,c) setenv(a,b,c)
1269 #define g_unsetenv(a) unsetenv(a)
1270 #endif
1271
1272 static void process_set_current (void)
1273 {
1274 pid_t pid = _wapi_getpid ();
1275 const char *handle_env;
1276 struct _WapiHandle_process process_handle = {0};
1277
1278 mono_once (&process_ops_once, process_ops_init);
1279
1280 handle_env = g_getenv ("_WAPI_PROCESS_HANDLE_OFFSET");
1281 g_unsetenv ("_WAPI_PROCESS_HANDLE_OFFSET");
1282
1283 if (handle_env != NULL) {
1284 struct _WapiHandle_process *process_handlep;
1285 gchar *procname = NULL;
1286 gboolean ok;
1287
1288 current_process = _wapi_handle_new_from_offset (WAPI_HANDLE_PROCESS, atoi (handle_env), TRUE);
1289
1290 #ifdef DEBUG
1291 g_message ("%s: Found my process handle: %p (offset %d 0x%x)",
1292 __func__, current_process, atoi (handle_env),
1293 atoi (handle_env));
1294 #endif
1295
1296 ok = _wapi_lookup_handle (current_process, WAPI_HANDLE_PROCESS,
1297 (gpointer *)&process_handlep);
1298 if (ok) {
1299 /* This test will probably break on linuxthreads, but
1300 * that should be ancient history on all distros we
1301 * care about by now
1302 */
1303 if (process_handlep->id == pid) {
1304 procname = process_handlep->proc_name;
1305 if (!strcmp (procname, "mono")) {
1306 /* Set a better process name */
1307 #ifdef DEBUG
1308 g_message ("%s: Setting better process name", __func__);
1309 #endif
1310
1311 process_set_name (process_handlep);
1312 } else {
1313 #ifdef DEBUG
1314 g_message ("%s: Leaving process name: %s", __func__, procname);
1315 #endif
1316 }
1317
1318 return;
1319 }
1320
1321 /* Wrong pid, so drop this handle and fall through to
1322 * create a new one
1323 */
1324 _wapi_handle_unref (current_process);
1325 }
1326 }
1327
1328 /* We get here if the handle wasn't specified in the
1329 * environment, or if the process ID was wrong, or if the
1330 * handle lookup failed (eg if the parent process forked and
1331 * quit immediately, and deleted the shared data before the
1332 * child got a chance to attach it.)
1333 */
1334
1335 #ifdef DEBUG
1336 g_message ("%s: Need to create my own process handle", __func__);
1337 #endif
1338
1339 process_handle.id = pid;
1340
1341 process_set_defaults (&process_handle);
1342 process_set_name (&process_handle);
1343
1344 current_process = _wapi_handle_new (WAPI_HANDLE_PROCESS,
1345 &process_handle);
1346 if (current_process == _WAPI_HANDLE_INVALID) {
1347 g_warning ("%s: error creating process handle", __func__);
1348 return;
1349 }
1350 }
1351
1352 gpointer _wapi_process_duplicate ()
1353 {
1354 mono_once (&process_current_once, process_set_current);
1355
1356 _wapi_handle_ref (current_process);
1357
1358 return(current_process);
1359 }
1360
1361 /* Returns a pseudo handle that doesn't need to be closed afterwards */
1362 gpointer GetCurrentProcess (void)
1363 {
1364 mono_once (&process_current_once, process_set_current);
1365
1366 return(_WAPI_PROCESS_CURRENT);
1367 }
1368
1369 guint32 GetProcessId (gpointer handle)
1370 {
1371 struct _WapiHandle_process *process_handle;
1372 gboolean ok;
1373
1374 if ((GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
1375 /* This is a pseudo handle */
1376 return(GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
1377 }
1378
1379 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
1380 (gpointer *)&process_handle);
1381 if (ok == FALSE) {
1382 SetLastError (ERROR_INVALID_HANDLE);
1383 return (0);
1384 }
1385
1386 return (process_handle->id);
1387 }
1388
1389 guint32 GetCurrentProcessId (void)
1390 {
1391 mono_once (&process_current_once, process_set_current);
1392
1393 return (GetProcessId (current_process));
1394 }
1395
1396 /* Returns the process id as a convenience to the functions that call this */
1397 static pid_t signal_process_if_gone (gpointer handle)
1398 {
1399 struct _WapiHandle_process *process_handle;
1400 gboolean ok;
1401
1402 g_assert ((GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED) != _WAPI_PROCESS_UNHANDLED);
1403
1404 /* Make sure the process is signalled if it has exited - if
1405 * the parent process didn't wait for it then it won't be
1406 */
1407 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
1408 (gpointer *)&process_handle);
1409 if (ok == FALSE) {
1410 /* It's possible that the handle has vanished during
1411 * the _wapi_search_handle before it gets here, so
1412 * don't spam the console with warnings.
1413 */
1414 /* g_warning ("%s: error looking up process handle %p",
1415 __func__, handle);*/
1416
1417 return (0);
1418 }
1419
1420 #ifdef DEBUG
1421 g_message ("%s: looking at process %d", __func__, process_handle->id);
1422 #endif
1423
1424 if (kill (process_handle->id, 0) == -1 &&
1425 (errno == ESRCH ||
1426 errno == EPERM)) {
1427 /* The process is dead, (EPERM tells us a new process
1428 * has that ID, but as it's owned by someone else it
1429 * can't be the one listed in our shared memory file)
1430 */
1431 _wapi_shared_handle_set_signal_state (handle, TRUE);
1432 }
1433
1434 return (process_handle->id);
1435 }
1436
1437 #ifdef UNUSED_CODE
1438 static gboolean process_enum (gpointer handle, gpointer user_data)
1439 {
1440 GArray *processes=user_data;
1441 pid_t pid = signal_process_if_gone (handle);
1442 int i;
1443
1444 if (pid == 0) {
1445 return (FALSE);
1446 }
1447
1448 /* Ignore processes that have already exited (ie they are signalled) */
1449 if (_wapi_handle_issignalled (handle) == FALSE) {
1450 #ifdef DEBUG
1451 g_message ("%s: process %d added to array", __func__, pid);
1452 #endif
1453
1454 /* This ensures that duplicates aren't returned (see
1455 * the comment above _wapi_search_handle () for why
1456 * it's needed
1457 */
1458 for (i = 0; i < processes->len; i++) {
1459 if (g_array_index (processes, pid_t, i) == pid) {
1460 /* We've already got this one, return
1461 * FALSE to keep searching
1462 */
1463 return (FALSE);
1464 }
1465 }
1466
1467 g_array_append_val (processes, pid);
1468 }
1469
1470 /* Return false to keep searching */
1471 return(FALSE);
1472 }
1473 #endif /* UNUSED_CODE */
1474
1475 gboolean EnumProcesses (guint32 *pids, guint32 len, guint32 *needed)
1476 {
1477 GArray *processes = g_array_new (FALSE, FALSE, sizeof(pid_t));
1478 guint32 fit, i, j;
1479 DIR *dir;
1480 struct dirent *entry;
1481
1482 mono_once (&process_current_once, process_set_current);
1483
1484 dir = opendir ("/proc");
1485 if (dir == NULL) {
1486 return(FALSE);
1487 }
1488 while((entry = readdir (dir)) != NULL) {
1489 if (isdigit (entry->d_name[0])) {
1490 char *endptr;
1491 pid_t pid = (pid_t)strtol (entry->d_name, &endptr, 10);
1492
1493 if (*endptr == '\0') {
1494 /* Name was entirely numeric, so was a
1495 * process ID
1496 */
1497 g_array_append_val (processes, pid);
1498 }
1499 }
1500 }
1501 closedir (dir);
1502
1503 fit=len/sizeof(guint32);
1504 for (i = 0, j = 0; j < fit && i < processes->len; i++) {
1505 pids[j++] = g_array_index (processes, pid_t, i);
1506 }
1507
1508 g_array_free (processes, TRUE);
1509
1510 *needed = j * sizeof(guint32);
1511
1512 return(TRUE);
1513 }
1514
1515 static gboolean process_open_compare (gpointer handle, gpointer user_data)
1516 {
1517 pid_t wanted_pid;
1518 pid_t checking_pid = signal_process_if_gone (handle);
1519
1520 if (checking_pid == 0) {
1521 return(FALSE);
1522 }
1523
1524 wanted_pid = GPOINTER_TO_UINT (user_data);
1525
1526 /* It's possible to have more than one process handle with the
1527 * same pid, but only the one running process can be
1528 * unsignalled
1529 */
1530 if (checking_pid == wanted_pid &&
1531 _wapi_handle_issignalled (handle) == FALSE) {
1532 /* If the handle is blown away in the window between
1533 * returning TRUE here and _wapi_search_handle pinging
1534 * the timestamp, the search will continue
1535 */
1536 return(TRUE);
1537 } else {
1538 return(FALSE);
1539 }
1540 }
1541
1542 gpointer OpenProcess (guint32 req_access G_GNUC_UNUSED, gboolean inherit G_GNUC_UNUSED, guint32 pid)
1543 {
1544 /* Find the process handle that corresponds to pid */
1545 gpointer handle;
1546
1547 mono_once (&process_current_once, process_set_current);
1548
1549 #ifdef DEBUG
1550 g_message ("%s: looking for process %d", __func__, pid);
1551 #endif
1552
1553 handle = _wapi_search_handle (WAPI_HANDLE_PROCESS,
1554 process_open_compare,
1555 GUINT_TO_POINTER (pid), NULL, TRUE);
1556 if (handle == 0) {
1557 gchar *dir = g_strdup_printf ("/proc/%d", pid);
1558 if (!access (dir, F_OK)) {
1559 /* Return a pseudo handle for processes we
1560 * don't have handles for
1561 */
1562 return((gpointer)(_WAPI_PROCESS_UNHANDLED + pid));
1563 } else {
1564 #ifdef DEBUG
1565 g_message ("%s: Can't find pid %d", __func__, pid);
1566 #endif
1567
1568 SetLastError (ERROR_PROC_NOT_FOUND);
1569
1570 return(NULL);
1571 }
1572 }
1573
1574 _wapi_handle_ref (handle);
1575
1576 return(handle);
1577 }
1578
1579 gboolean GetExitCodeProcess (gpointer process, guint32 *code)
1580 {
1581 struct _WapiHandle_process *process_handle;
1582 gboolean ok;
1583
1584 mono_once (&process_current_once, process_set_current);
1585
1586 if(code==NULL) {
1587 return(FALSE);
1588 }
1589
1590 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
1591 /* This is a pseudo handle, so we don't know what the
1592 * exit code was
1593 */
1594 return(FALSE);
1595 }
1596
1597 ok=_wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
1598 (gpointer *)&process_handle);
1599 if(ok==FALSE) {
1600 #ifdef DEBUG
1601 g_message ("%s: Can't find process %p", __func__, process);
1602 #endif
1603
1604 return(FALSE);
1605 }
1606
1607 /* A process handle is only signalled if the process has exited
1608 * and has been waited for */
1609
1610 /* Make sure any process exit has been noticed, before
1611 * checking if the process is signalled. Fixes bug 325463.
1612 */
1613 process_wait (process, 0);
1614
1615 if (_wapi_handle_issignalled (process) == TRUE) {
1616 *code = process_handle->exitstatus;
1617 } else {
1618 *code = STILL_ACTIVE;
1619 }
1620
1621 return(TRUE);
1622 }
1623
1624 gboolean GetProcessTimes (gpointer process, WapiFileTime *create_time,
1625 WapiFileTime *exit_time, WapiFileTime *kernel_time,
1626 WapiFileTime *user_time)
1627 {
1628 struct _WapiHandle_process *process_handle;
1629 gboolean ok;
1630 gboolean ku_times_set = FALSE;
1631
1632 mono_once (&process_current_once, process_set_current);
1633
1634 if(create_time==NULL || exit_time==NULL || kernel_time==NULL ||
1635 user_time==NULL) {
1636 /* Not sure if w32 allows NULLs here or not */
1637 return(FALSE);
1638 }
1639
1640 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
1641 /* This is a pseudo handle, so just fail for now
1642 */
1643 return(FALSE);
1644 }
1645
1646 ok=_wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
1647 (gpointer *)&process_handle);
1648 if(ok==FALSE) {
1649 #ifdef DEBUG
1650 g_message ("%s: Can't find process %p", __func__, process);
1651 #endif
1652
1653 return(FALSE);
1654 }
1655
1656 *create_time=process_handle->create_time;
1657
1658 /* A process handle is only signalled if the process has
1659 * exited. Otherwise exit_time isn't set
1660 */
1661 if(_wapi_handle_issignalled (process)==TRUE) {
1662 *exit_time=process_handle->exit_time;
1663 }
1664
1665 #ifdef HAVE_GETRUSAGE
1666 if (process_handle->id == getpid ()) {
1667 struct rusage time_data;
1668 if (getrusage (RUSAGE_SELF, &time_data) == 0) {
1669 gint64 tick_val;
1670 gint64 *tick_val_ptr;
1671 ku_times_set = TRUE;
1672 tick_val = time_data.ru_utime.tv_sec * 10000000 + time_data.ru_utime.tv_usec * 10;
1673 tick_val_ptr = (gint64*)user_time;
1674 *tick_val_ptr = tick_val;
1675 tick_val = time_data.ru_stime.tv_sec * 10000000 + time_data.ru_stime.tv_usec * 10;
1676 tick_val_ptr = (gint64*)kernel_time;
1677 *tick_val_ptr = tick_val;
1678 }
1679 }
1680 #endif
1681 if (!ku_times_set) {
1682 memset (kernel_time, 0, sizeof (WapiFileTime));
1683 memset (user_time, 0, sizeof (WapiFileTime));
1684 }
1685
1686 return(TRUE);
1687 }
1688
1689 typedef struct
1690 {
1691 gpointer address_start;
1692 gpointer address_end;
1693 gchar *perms;
1694 gpointer address_offset;
1695 dev_t device;
1696 ino_t inode;
1697 gchar *filename;
1698 } WapiProcModule;
1699
1700 static void free_procmodule (WapiProcModule *mod)
1701 {
1702 if (mod->perms != NULL) {
1703 g_free (mod->perms);
1704 }
1705 if (mod->filename != NULL) {
1706 g_free (mod->filename);
1707 }
1708 g_free (mod);
1709 }
1710
1711 static gint find_procmodule (gconstpointer a, gconstpointer b)
1712 {
1713 WapiProcModule *want = (WapiProcModule *)a;
1714 WapiProcModule *compare = (WapiProcModule *)b;
1715
1716 if ((want->device == compare->device) &&
1717 (want->inode == compare->inode)) {
1718 return(0);
1719 } else {
1720 return(1);
1721 }
1722 }
1723
1724 #ifdef PLATFORM_MACOSX
1725 #include <mach-o/dyld.h>
1726
1727 static GSList *load_modules ()
1728 {
1729 GSList *ret = NULL;
1730 WapiProcModule *mod;
1731 uint32_t count = _dyld_image_count ();
1732 int i = 0;
1733
1734 for (i = 0; i < count; i++) {
1735 const struct mach_header *hdr;
1736 const struct section *sec;
1737 const char *name;
1738 intptr_t slide;
1739
1740 slide = _dyld_get_image_vmaddr_slide (i);
1741 name = _dyld_get_image_name (i);
1742 hdr = _dyld_get_image_header (i);
1743 sec = getsectbynamefromheader (hdr, SEG_DATA, SECT_DATA);
1744
1745 mod = g_new0 (WapiProcModule, 1);
1746 mod->address_start = sec->addr;
1747 mod->address_end = sec->addr+sec->size;
1748 mod->perms = g_strdup ("r--p");
1749 mod->address_offset = 0;
1750 mod->device = makedev (0, 0);
1751 mod->inode = (ino_t) i;
1752 mod->filename = g_strdup (name);
1753
1754 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1755 ret = g_slist_prepend (ret, mod);
1756 } else {
1757 free_procmodule (mod);
1758 }
1759 }
1760
1761 ret = g_slist_reverse (ret);
1762
1763 return(ret);
1764 }
1765 #else
1766 static GSList *load_modules (FILE *fp)
1767 {
1768 GSList *ret = NULL;
1769 WapiProcModule *mod;
1770 gchar buf[MAXPATHLEN + 1], *p, *endp;
1771 gchar *start_start, *end_start, *prot_start, *offset_start;
1772 gchar *maj_dev_start, *min_dev_start, *inode_start, prot_buf[5];
1773 gpointer address_start, address_end, address_offset;
1774 guint32 maj_dev, min_dev;
1775 ino_t inode;
1776 dev_t device;
1777
1778 while (fgets (buf, sizeof(buf), fp)) {
1779 p = buf;
1780 while (g_ascii_isspace (*p)) ++p;
1781 start_start = p;
1782 if (!g_ascii_isxdigit (*start_start)) {
1783 continue;
1784 }
1785 address_start = (gpointer)strtoul (start_start, &endp, 16);
1786 p = endp;
1787 if (*p != '-') {
1788 continue;
1789 }
1790
1791 ++p;
1792 end_start = p;
1793 if (!g_ascii_isxdigit (*end_start)) {
1794 continue;
1795 }
1796 address_end = (gpointer)strtoul (end_start, &endp, 16);
1797 p = endp;
1798 if (!g_ascii_isspace (*p)) {
1799 continue;
1800 }
1801
1802 while (g_ascii_isspace (*p)) ++p;
1803 prot_start = p;
1804 if (*prot_start != 'r' && *prot_start != '-') {
1805 continue;
1806 }
1807 memcpy (prot_buf, prot_start, 4);
1808 prot_buf[4] = '\0';
1809 while (!g_ascii_isspace (*p)) ++p;
1810
1811 while (g_ascii_isspace (*p)) ++p;
1812 offset_start = p;
1813 if (!g_ascii_isxdigit (*offset_start)) {
1814 continue;
1815 }
1816 address_offset = (gpointer)strtoul (offset_start, &endp, 16);
1817 p = endp;
1818 if (!g_ascii_isspace (*p)) {
1819 continue;
1820 }
1821
1822 while(g_ascii_isspace (*p)) ++p;
1823 maj_dev_start = p;
1824 if (!g_ascii_isxdigit (*maj_dev_start)) {
1825 continue;
1826 }
1827 maj_dev = strtoul (maj_dev_start, &endp, 16);
1828 p = endp;
1829 if (*p != ':') {
1830 continue;
1831 }
1832
1833 ++p;
1834 min_dev_start = p;
1835 if (!g_ascii_isxdigit (*min_dev_start)) {
1836 continue;
1837 }
1838 min_dev = strtoul (min_dev_start, &endp, 16);
1839 p = endp;
1840 if (!g_ascii_isspace (*p)) {
1841 continue;
1842 }
1843
1844 while (g_ascii_isspace (*p)) ++p;
1845 inode_start = p;
1846 if (!g_ascii_isxdigit (*inode_start)) {
1847 continue;
1848 }
1849 inode = (ino_t)strtol (inode_start, &endp, 10);
1850 p = endp;
1851 if (!g_ascii_isspace (*p)) {
1852 continue;
1853 }
1854
1855 device = makedev ((int)maj_dev, (int)min_dev);
1856 if ((device == 0) &&
1857 (inode == 0)) {
1858 continue;
1859 }
1860
1861 while(g_ascii_isspace (*p)) ++p;
1862 /* p now points to the filename */
1863
1864 mod = g_new0 (WapiProcModule, 1);
1865 mod->address_start = address_start;
1866 mod->address_end = address_end;
1867 mod->perms = g_strdup (prot_buf);
1868 mod->address_offset = address_offset;
1869 mod->device = device;
1870 mod->inode = inode;
1871 mod->filename = g_strdup (g_strstrip (p));
1872
1873 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1874 ret = g_slist_prepend (ret, mod);
1875 } else {
1876 free_procmodule (mod);
1877 }
1878 }
1879
1880 ret = g_slist_reverse (ret);
1881
1882 return(ret);
1883 }
1884 #endif
1885
1886 static gboolean match_procname_to_modulename (gchar *procname, gchar *modulename)
1887 {
1888 char* lastsep = NULL;
1889
1890 if (procname == NULL || modulename == NULL)
1891 return (FALSE);
1892
1893 if (!strcmp (procname, modulename))
1894 return (TRUE);
1895
1896 lastsep = strrchr (modulename, '/');
1897 if (lastsep) {
1898 if (!strcmp (lastsep+1, procname))
1899 return (TRUE);
1900 return (FALSE);
1901 }
1902
1903 return (FALSE);
1904 }
1905
1906 gboolean EnumProcessModules (gpointer process, gpointer *modules,
1907 guint32 size, guint32 *needed)
1908 {
1909 struct _WapiHandle_process *process_handle;
1910 gboolean ok;
1911 gchar *filename = NULL;
1912 FILE *fp;
1913 GSList *mods = NULL;
1914 WapiProcModule *module;
1915 guint32 count, avail = size / sizeof(gpointer);
1916 int i;
1917 pid_t pid;
1918 gchar *proc_name = NULL;
1919
1920 /* Store modules in an array of pointers (main module as
1921 * modules[0]), using the load address for each module as a
1922 * token. (Use 'NULL' as an alternative for the main module
1923 * so that the simple implementation can just return one item
1924 * for now.) Get the info from /proc/<pid>/maps on linux,
1925 * other systems will have to implement /dev/kmem reading or
1926 * whatever other horrid technique is needed.
1927 */
1928 if (size < sizeof(gpointer)) {
1929 return(FALSE);
1930 }
1931
1932 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
1933 /* This is a pseudo handle */
1934 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
1935 } else {
1936 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
1937 (gpointer *)&process_handle);
1938 if (ok == FALSE) {
1939 #ifdef DEBUG
1940 g_message ("%s: Can't find process %p", __func__, process);
1941 #endif
1942
1943 return(FALSE);
1944 }
1945 pid = process_handle->id;
1946 proc_name = process_handle->proc_name;
1947 }
1948
1949 #ifdef PLATFORM_MACOSX
1950 {
1951 mods = load_modules ();
1952 #else
1953 filename = g_strdup_printf ("/proc/%d/maps", pid);
1954 if ((fp = fopen (filename, "r")) == NULL) {
1955 /* No /proc/<pid>/maps so just return the main module
1956 * shortcut for now
1957 */
1958 modules[0] = NULL;
1959 *needed = sizeof(gpointer);
1960 } else {
1961 mods = load_modules (fp);
1962 fclose (fp);
1963 #endif
1964 count = g_slist_length (mods);
1965
1966 /* count + 1 to leave slot 0 for the main module */
1967 *needed = sizeof(gpointer) * (count + 1);
1968
1969 /* Use the NULL shortcut, as the first line in
1970 * /proc/<pid>/maps isn't the executable, and we need
1971 * that first in the returned list. Check the module name
1972 * to see if it ends with the proc name and substitute
1973 * the first entry with it. FIXME if this turns out to
1974 * be a problem.
1975 */
1976 modules[0] = NULL;
1977 for (i = 0; i < (avail - 1) && i < count; i++) {
1978 module = (WapiProcModule *)g_slist_nth_data (mods, i);
1979 if (modules[0] != NULL)
1980 modules[i] = module->address_start;
1981 else if (match_procname_to_modulename (proc_name, module->filename))
1982 modules[0] = module->address_start;
1983 else
1984 modules[i + 1] = module->address_start;
1985 }
1986
1987 for (i = 0; i < count; i++) {
1988 free_procmodule (g_slist_nth_data (mods, i));
1989 }
1990 g_slist_free (mods);
1991 }
1992
1993 g_free (filename);
1994
1995 return(TRUE);
1996 }
1997
1998 static gchar *get_process_name_from_proc (pid_t pid)
1999 {
2000 gchar *filename = NULL;
2001 gchar *ret = NULL;
2002 gchar buf[256];
2003 FILE *fp;
2004
2005 memset (buf, '\0', sizeof(buf));
2006
2007 filename = g_strdup_printf ("/proc/%d/exe", pid);
2008 if (readlink (filename, buf, 255) > 0) {
2009 ret = g_strdup (buf);
2010 }
2011 g_free (filename);
2012
2013 if (ret != NULL) {
2014 return(ret);
2015 }
2016
2017 filename = g_strdup_printf ("/proc/%d/cmdline", pid);
2018 if ((fp = fopen (filename, "r")) != NULL) {
2019 if (fgets (buf, 256, fp) != NULL) {
2020 ret = g_strdup (buf);
2021 }
2022
2023 fclose (fp);
2024 }
2025 g_free (filename);
2026
2027 if (ret != NULL) {
2028 return(ret);
2029 }
2030
2031 filename = g_strdup_printf ("/proc/%d/stat", pid);
2032 if ((fp = fopen (filename, "r")) != NULL) {
2033 if (fgets (buf, 256, fp) != NULL) {
2034 gchar *start, *end;
2035
2036 start = strchr (buf, '(');
2037 if (start != NULL) {
2038 end = strchr (start + 1, ')');
2039
2040 if (end != NULL) {
2041 ret = g_strndup (start + 1,
2042 end - start - 1);
2043 }
2044 }
2045 }
2046
2047 fclose (fp);
2048 }
2049 g_free (filename);
2050
2051 if (ret != NULL) {
2052 return(ret);
2053 }
2054
2055 return(NULL);
2056 }
2057
2058 static guint32 get_module_name (gpointer process, gpointer module,
2059 gunichar2 *basename, guint32 size,
2060 gboolean base)
2061 {
2062 struct _WapiHandle_process *process_handle;
2063 gboolean ok;
2064 pid_t pid;
2065 gunichar2 *procname;
2066 gchar *procname_ext = NULL;
2067 glong len;
2068 gsize bytes;
2069 gchar *filename = NULL;
2070 FILE *fp;
2071 GSList *mods = NULL;
2072 WapiProcModule *found_module;
2073 guint32 count;
2074 int i;
2075 gchar *proc_name = NULL;
2076
2077 mono_once (&process_current_once, process_set_current);
2078
2079 #ifdef DEBUG
2080 g_message ("%s: Getting module base name, process handle %p module %p",
2081 __func__, process, module);
2082 #endif
2083
2084 size = size*sizeof(gunichar2); /* adjust for unicode characters */
2085
2086 if (basename == NULL || size == 0) {
2087 return(0);
2088 }
2089
2090 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2091 /* This is a pseudo handle */
2092 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
2093 proc_name = get_process_name_from_proc (pid);
2094 } else {
2095 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2096 (gpointer *)&process_handle);
2097 if (ok == FALSE) {
2098 #ifdef DEBUG
2099 g_message ("%s: Can't find process %p", __func__,
2100 process);
2101 #endif
2102
2103 return(0);
2104 }
2105 pid = process_handle->id;
2106 proc_name = g_strdup (process_handle->proc_name);
2107 }
2108
2109 /* Look up the address in /proc/<pid>/maps */
2110 #ifdef PLATFORM_MACOSX
2111 {
2112 mods = load_modules ();
2113 #else
2114 filename = g_strdup_printf ("/proc/%d/maps", pid);
2115 if ((fp = fopen (filename, "r")) == NULL) {
2116 if (errno == EACCES && module == NULL && base == TRUE) {
2117 procname_ext = get_process_name_from_proc (pid);
2118 } else {
2119 /* No /proc/<pid>/maps, so just return failure
2120 * for now
2121 */
2122 g_free (proc_name);
2123 g_free (filename);
2124 return(0);
2125 }
2126 } else {
2127 mods = load_modules (fp);
2128 fclose (fp);
2129 #endif
2130 count = g_slist_length (mods);
2131
2132 /* If module != NULL compare the address.
2133 * If module == NULL we are looking for the main module.
2134 * The best we can do for now check it the module name end with the process name.
2135 */
2136 for (i = 0; i < count; i++) {
2137 found_module = (WapiProcModule *)g_slist_nth_data (mods, i);
2138 if (procname_ext == NULL &&
2139 ((module == NULL && match_procname_to_modulename (proc_name, found_module->filename)) ||
2140 (module != NULL && found_module->address_start == module))) {
2141 if (base) {
2142 procname_ext = g_path_get_basename (found_module->filename);
2143 } else {
2144 procname_ext = g_strdup (found_module->filename);
2145 }
2146 }
2147
2148 free_procmodule (found_module);
2149 }
2150
2151 if (procname_ext == NULL)
2152 {
2153 /* If it's *still* null, we might have hit the
2154 * case where reading /proc/$pid/maps gives an
2155 * empty file for this user.
2156 */
2157 procname_ext = get_process_name_from_proc (pid);
2158 }
2159
2160 g_slist_free (mods);
2161 g_free (filename);
2162 g_free (proc_name);
2163 }
2164
2165 if (procname_ext != NULL) {
2166 #ifdef DEBUG
2167 g_message ("%s: Process name is [%s]", __func__,
2168 procname_ext);
2169 #endif
2170
2171 procname = mono_unicode_from_external (procname_ext, &bytes);
2172 if (procname == NULL) {
2173 /* bugger */
2174 g_free (procname_ext);
2175 return(0);
2176 }
2177
2178 len = (bytes / 2);
2179
2180 /* Add the terminator */
2181 bytes += 2;
2182
2183 if (size < bytes) {
2184 #ifdef DEBUG
2185 g_message ("%s: Size %d smaller than needed (%ld); truncating", __func__, size, bytes);
2186 #endif
2187
2188 memcpy (basename, procname, size);
2189 } else {
2190 #ifdef DEBUG
2191 g_message ("%s: Size %d larger than needed (%ld)",
2192 __func__, size, bytes);
2193 #endif
2194
2195 memcpy (basename, procname, bytes);
2196 }
2197
2198 g_free (procname);
2199 g_free (procname_ext);
2200
2201 return(len);
2202 }
2203
2204 return(0);
2205 }
2206
2207 guint32 GetModuleBaseName (gpointer process, gpointer module,
2208 gunichar2 *basename, guint32 size)
2209 {
2210 return(get_module_name (process, module, basename, size, TRUE));
2211 }
2212
2213 guint32 GetModuleFileNameEx (gpointer process, gpointer module,
2214 gunichar2 *filename, guint32 size)
2215 {
2216 return(get_module_name (process, module, filename, size, FALSE));
2217 }
2218
2219 gboolean GetModuleInformation (gpointer process, gpointer module,
2220 WapiModuleInfo *modinfo, guint32 size)
2221 {
2222 struct _WapiHandle_process *process_handle;
2223 gboolean ok;
2224 pid_t pid;
2225 gchar *filename = NULL;
2226 FILE *fp;
2227 GSList *mods = NULL;
2228 WapiProcModule *found_module;
2229 guint32 count;
2230 int i;
2231 gboolean ret = FALSE;
2232 gchar *proc_name = NULL;
2233
2234 mono_once (&process_current_once, process_set_current);
2235
2236 #ifdef DEBUG
2237 g_message ("%s: Getting module info, process handle %p module %p",
2238 __func__, process, module);
2239 #endif
2240
2241 if (modinfo == NULL || size < sizeof(WapiModuleInfo)) {
2242 return(FALSE);
2243 }
2244
2245 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2246 /* This is a pseudo handle */
2247 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
2248 proc_name = get_process_name_from_proc (pid);
2249 } else {
2250 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2251 (gpointer *)&process_handle);
2252 if (ok == FALSE) {
2253 #ifdef DEBUG
2254 g_message ("%s: Can't find process %p", __func__,
2255 process);
2256 #endif
2257
2258 return(FALSE);
2259 }
2260 pid = process_handle->id;
2261 proc_name = g_strdup (process_handle->proc_name);
2262 }
2263
2264 #ifdef PLATFORM_MACOSX
2265 {
2266 mods = load_modules ();
2267 #else
2268 /* Look up the address in /proc/<pid>/maps */
2269 filename = g_strdup_printf ("/proc/%d/maps", pid);
2270 if ((fp = fopen (filename, "r")) == NULL) {
2271 /* No /proc/<pid>/maps, so just return failure
2272 * for now
2273 */
2274 g_free (proc_name);
2275 g_free (filename);
2276 return(FALSE);
2277 } else {
2278 mods = load_modules (fp);
2279 fclose (fp);
2280 #endif
2281 count = g_slist_length (mods);
2282
2283 /* If module != NULL compare the address.
2284 * If module == NULL we are looking for the main module.
2285 * The best we can do for now check it the module name end with the process name.
2286 */
2287 for (i = 0; i < count; i++) {
2288 found_module = (WapiProcModule *)g_slist_nth_data (mods, i);
2289 if ( ret == FALSE &&
2290 ((module == NULL && match_procname_to_modulename (proc_name, found_module->filename)) ||
2291 (module != NULL && found_module->address_start == module))) {
2292 modinfo->lpBaseOfDll = found_module->address_start;
2293 modinfo->SizeOfImage = (gsize)(found_module->address_end) - (gsize)(found_module->address_start);
2294 modinfo->EntryPoint = found_module->address_offset;
2295 ret = TRUE;
2296 }
2297
2298 free_procmodule (found_module);
2299 }
2300
2301 g_slist_free (mods);
2302 g_free (filename);
2303 g_free (proc_name);
2304 }
2305
2306 return(ret);
2307 }
2308
2309 gboolean GetProcessWorkingSetSize (gpointer process, size_t *min, size_t *max)
2310 {
2311 struct _WapiHandle_process *process_handle;
2312 gboolean ok;
2313
2314 mono_once (&process_current_once, process_set_current);
2315
2316 if(min==NULL || max==NULL) {
2317 /* Not sure if w32 allows NULLs here or not */
2318 return(FALSE);
2319 }
2320
2321 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2322 /* This is a pseudo handle, so just fail for now
2323 */
2324 return(FALSE);
2325 }
2326
2327 ok=_wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2328 (gpointer *)&process_handle);
2329 if(ok==FALSE) {
2330 #ifdef DEBUG
2331 g_message ("%s: Can't find process %p", __func__, process);
2332 #endif
2333
2334 return(FALSE);
2335 }
2336
2337 *min=process_handle->min_working_set;
2338 *max=process_handle->max_working_set;
2339
2340 return(TRUE);
2341 }
2342
2343 gboolean SetProcessWorkingSetSize (gpointer process, size_t min, size_t max)
2344 {
2345 struct _WapiHandle_process *process_handle;
2346 gboolean ok;
2347
2348 mono_once (&process_current_once, process_set_current);
2349
2350 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2351 /* This is a pseudo handle, so just fail for now
2352 */
2353 return(FALSE);
2354 }
2355
2356 ok=_wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2357 (gpointer *)&process_handle);
2358 if(ok==FALSE) {
2359 #ifdef DEBUG
2360 g_message ("%s: Can't find process %p", __func__, process);
2361 #endif
2362
2363 return(FALSE);
2364 }
2365
2366 process_handle->min_working_set=min;
2367 process_handle->max_working_set=max;
2368
2369 return(TRUE);
2370 }
2371
2372
2373 gboolean
2374 TerminateProcess (gpointer process, gint32 exitCode)
2375 {
2376 struct _WapiHandle_process *process_handle;
2377 gboolean ok;
2378 int signo;
2379 int ret;
2380 pid_t pid;
2381
2382 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2383 /* This is a pseudo handle */
2384 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
2385 } else {
2386 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2387 (gpointer *) &process_handle);
2388
2389 if (ok == FALSE) {
2390 #ifdef DEBUG
2391 g_message ("%s: Can't find process %p", __func__,
2392 process);
2393 #endif
2394 SetLastError (ERROR_INVALID_HANDLE);
2395 return FALSE;
2396 }
2397 pid = process_handle->id;
2398 }
2399
2400 signo = (exitCode == -1) ? SIGKILL : SIGTERM;
2401 ret = kill (pid, signo);
2402 if (ret == -1) {
2403 switch (errno) {
2404 case EINVAL:
2405 SetLastError (ERROR_INVALID_PARAMETER);
2406 break;
2407 case EPERM:
2408 SetLastError (ERROR_ACCESS_DENIED);
2409 break;
2410 case ESRCH:
2411 SetLastError (ERROR_PROC_NOT_FOUND);
2412 break;
2413 default:
2414 SetLastError (ERROR_GEN_FAILURE);
2415 }
2416 }
2417
2418 return (ret == 0);
2419 }
2420
2421 guint32
2422 GetPriorityClass (gpointer process)
2423 {
2424 #ifdef HAVE_GETPRIORITY
2425 struct _WapiHandle_process *process_handle;
2426 gboolean ok;
2427 int ret;
2428 pid_t pid;
2429
2430 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2431 /* This is a pseudo handle */
2432 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
2433 } else {
2434 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2435 (gpointer *) &process_handle);
2436
2437 if (!ok) {
2438 SetLastError (ERROR_INVALID_HANDLE);
2439 return FALSE;
2440 }
2441 pid = process_handle->id;
2442 }
2443
2444 errno = 0;
2445 ret = getpriority (PRIO_PROCESS, pid);
2446 if (ret == -1 && errno != 0) {
2447 switch (errno) {
2448 case EPERM:
2449 case EACCES:
2450 SetLastError (ERROR_ACCESS_DENIED);
2451 break;
2452 case ESRCH:
2453 SetLastError (ERROR_PROC_NOT_FOUND);
2454 break;
2455 default:
2456 SetLastError (ERROR_GEN_FAILURE);
2457 }
2458 return FALSE;
2459 }
2460
2461 if (ret == 0)
2462 return NORMAL_PRIORITY_CLASS;
2463 else if (ret < -15)
2464 return REALTIME_PRIORITY_CLASS;
2465 else if (ret < -10)
2466 return HIGH_PRIORITY_CLASS;
2467 else if (ret < 0)
2468 return ABOVE_NORMAL_PRIORITY_CLASS;
2469 else if (ret > 10)
2470 return IDLE_PRIORITY_CLASS;
2471 else if (ret > 0)
2472 return BELOW_NORMAL_PRIORITY_CLASS;
2473
2474 return NORMAL_PRIORITY_CLASS;
2475 #else
2476 SetLastError (ERROR_NOT_SUPPORTED);
2477 return 0;
2478 #endif
2479 }
2480
2481 gboolean
2482 SetPriorityClass (gpointer process, guint32 priority_class)
2483 {
2484 #ifdef HAVE_SETPRIORITY
2485 struct _WapiHandle_process *process_handle;
2486 gboolean ok;
2487 int ret;
2488 int prio;
2489 pid_t pid;
2490
2491 if ((GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED) == _WAPI_PROCESS_UNHANDLED) {
2492 /* This is a pseudo handle */
2493 pid = (pid_t)(GPOINTER_TO_UINT (process) & _WAPI_PROCESS_UNHANDLED_PID_MASK);
2494 } else {
2495 ok = _wapi_lookup_handle (process, WAPI_HANDLE_PROCESS,
2496 (gpointer *) &process_handle);
2497
2498 if (!ok) {
2499 SetLastError (ERROR_INVALID_HANDLE);
2500 return FALSE;
2501 }
2502 pid = process_handle->id;
2503 }
2504
2505 switch (priority_class) {
2506 case IDLE_PRIORITY_CLASS:
2507 prio = 19;
2508 break;
2509 case BELOW_NORMAL_PRIORITY_CLASS:
2510 prio = 10;
2511 break;
2512 case NORMAL_PRIORITY_CLASS:
2513 prio = 0;
2514 break;
2515 case ABOVE_NORMAL_PRIORITY_CLASS:
2516 prio = -5;
2517 break;
2518 case HIGH_PRIORITY_CLASS:
2519 prio = -11;
2520 break;
2521 case REALTIME_PRIORITY_CLASS:
2522 prio = -20;
2523 break;
2524 default:
2525 SetLastError (ERROR_INVALID_PARAMETER);
2526 return FALSE;
2527 }
2528
2529 ret = setpriority (PRIO_PROCESS, pid, prio);
2530 if (ret == -1) {
2531 switch (errno) {
2532 case EPERM:
2533 case EACCES:
2534 SetLastError (ERROR_ACCESS_DENIED);
2535 break;
2536 case ESRCH:
2537 SetLastError (ERROR_PROC_NOT_FOUND);
2538 break;
2539 default:
2540 SetLastError (ERROR_GEN_FAILURE);
2541 }
2542 }
2543
2544 return ret == 0;
2545 #else
2546 SetLastError (ERROR_NOT_SUPPORTED);
2547 return FALSE;
2548 #endif
2549 }
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