1 /* gspawn-win32.c - Process launching on Win32
3 * Copyright 2000 Red Hat, Inc.
4 * Copyright 2003 Tor Lillqvist
6 * GLib is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
11 * GLib is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with GLib; see the file COPYING.LIB. If not, write
18 * to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 * Implementation details on Win32.
25 * - There is no way to set the no-inherit flag for
26 * a "file descriptor" in the MS C runtime. The flag is there,
27 * and the dospawn() function uses it, but unfortunately
28 * this flag can only be set when opening the file.
29 * - As there is no fork(), we cannot reliably change directory
30 * before starting the child process. (There might be several threads
31 * running, and the current directory is common for all threads.)
33 * Thus, we must in many cases use a helper program to handle closing
34 * of (inherited) file descriptors and changing of directory. The
35 * helper process is also needed if the standard input, standard
36 * output, or standard error of the process to be run are supposed to
37 * be redirected somewhere.
39 * The structure of the source code in this file is a mess, I know.
42 /* Define this to get some logging all the time */
43 /* #define G_SPAWN_WIN32_DEBUG */
48 #include "gprintfint.h"
64 #ifdef G_SPAWN_WIN32_DEBUG
66 #define SETUP_DEBUG() /* empty */
68 static int debug = -1;
69 #define SETUP_DEBUG() \
74 if (getenv ("G_SPAWN_WIN32_DEBUG") != NULL) \
91 ARG_CHILD_ERR_REPORT = 1,
96 ARG_WORKING_DIRECTORY,
97 ARG_CLOSE_DESCRIPTORS,
101 ARG_COUNT = ARG_PROGRAM
105 dup_noninherited (int fd,
110 DuplicateHandle (GetCurrentProcess (), (LPHANDLE) _get_osfhandle (fd),
111 GetCurrentProcess (), &filehandle,
112 0, FALSE, DUPLICATE_SAME_ACCESS);
114 return _open_osfhandle ((gintptr) filehandle, mode | _O_NOINHERIT);
117 #ifndef GSPAWN_HELPER
120 #define HELPER_PROCESS "gspawn-win64-helper"
122 #define HELPER_PROCESS "gspawn-win32-helper"
126 protect_argv_string (const gchar *string)
128 const gchar *p = string;
131 gboolean need_dblquotes = FALSE;
134 if (*p == ' ' || *p == '\t')
135 need_dblquotes = TRUE;
141 while (*pp && *pp == '\\')
150 q = retval = g_malloc (len + need_dblquotes*2 + 1);
163 while (*pp && *pp == '\\')
180 protect_argv (gchar **argv,
188 *new_argv = g_new (gchar *, argc+1);
190 /* Quote each argv element if necessary, so that it will get
191 * reconstructed correctly in the C runtime startup code. Note that
192 * the unquoting algorithm in the C runtime is really weird, and
193 * rather different than what Unix shells do. See stdargv.c in the C
194 * runtime sources (in the Platform SDK, in src/crt).
196 * Note that an new_argv[0] constructed by this function should
197 * *not* be passed as the filename argument to a spawn* or exec*
198 * family function. That argument should be the real file name
199 * without any quoting.
201 for (i = 0; i < argc; i++)
202 (*new_argv)[i] = protect_argv_string (argv[i]);
204 (*new_argv)[argc] = NULL;
210 g_spawn_error_quark (void)
212 return g_quark_from_static_string ("g-exec-error-quark");
216 g_spawn_async_utf8 (const gchar *working_directory,
220 GSpawnChildSetupFunc child_setup,
225 g_return_val_if_fail (argv != NULL, FALSE);
227 return g_spawn_async_with_pipes_utf8 (working_directory,
237 /* Avoids a danger in threaded situations (calling close()
238 * on a file descriptor twice, and another thread has
239 * re-opened it since the first close)
242 close_and_invalidate (gint *fd)
253 READ_FAILED = 0, /* FALSE */
259 read_data (GString *str,
260 GIOChannel *iochannel,
269 giostatus = g_io_channel_read_chars (iochannel, buf, sizeof (buf), &bytes, NULL);
275 g_string_append_len (str, buf, bytes);
278 else if (giostatus == G_IO_STATUS_AGAIN)
280 else if (giostatus == G_IO_STATUS_ERROR)
282 g_set_error_literal (error, G_SPAWN_ERROR, G_SPAWN_ERROR_READ,
283 _("Failed to read data from child process"));
292 make_pipe (gint p[2],
295 if (_pipe (p, 4096, _O_BINARY) < 0)
299 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
300 _("Failed to create pipe for communicating with child process (%s)"),
308 /* The helper process writes a status report back to us, through a
309 * pipe, consisting of two ints.
312 read_helper_report (int fd,
318 while (bytes < sizeof(gintptr)*2)
323 g_print ("%s:read_helper_report: read %" G_GSIZE_FORMAT "...\n",
325 sizeof(gintptr)*2 - bytes);
327 chunk = read (fd, ((gchar*)report) + bytes,
328 sizeof(gintptr)*2 - bytes);
331 g_print ("...got %d bytes\n", chunk);
337 /* Some weird shit happened, bail out */
338 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
339 _("Failed to read from child pipe (%s)"),
346 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
347 _("Failed to read from child pipe (%s)"),
355 if (bytes < sizeof(gintptr)*2)
362 set_child_error (gintptr report[2],
363 const gchar *working_directory,
368 case CHILD_CHDIR_FAILED:
369 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
370 _("Failed to change to directory '%s' (%s)"),
372 g_strerror (report[1]));
374 case CHILD_SPAWN_FAILED:
375 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
376 _("Failed to execute child process (%s)"),
377 g_strerror (report[1]));
380 g_assert_not_reached ();
385 utf8_charv_to_wcharv (char **utf8_charv,
390 wchar_t **retval = NULL;
393 if (utf8_charv != NULL)
397 while (utf8_charv[n])
399 retval = g_new (wchar_t *, n + 1);
401 for (i = 0; i < n; i++)
403 retval[i] = g_utf8_to_utf16 (utf8_charv[i], -1, NULL, NULL, error);
404 if (retval[i] == NULL)
409 g_free (retval[--i]);
422 do_spawn_directly (gint *exit_status,
423 gboolean do_return_handle,
427 char **protected_argv,
431 const int mode = (exit_status == NULL) ? P_NOWAIT : P_WAIT;
435 GError *conv_error = NULL;
436 gint conv_error_index;
437 wchar_t *wargv0, **wargv, **wenvp;
439 new_argv = (flags & G_SPAWN_FILE_AND_ARGV_ZERO) ? protected_argv + 1 : protected_argv;
441 wargv0 = g_utf8_to_utf16 (argv[0], -1, NULL, NULL, &conv_error);
444 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
445 _("Invalid program name: %s"),
446 conv_error->message);
447 g_error_free (conv_error);
452 if (!utf8_charv_to_wcharv (new_argv, &wargv, &conv_error_index, &conv_error))
454 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
455 _("Invalid string in argument vector at %d: %s"),
456 conv_error_index, conv_error->message);
457 g_error_free (conv_error);
463 if (!utf8_charv_to_wcharv (envp, &wenvp, NULL, &conv_error))
465 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
466 _("Invalid string in environment: %s"),
467 conv_error->message);
468 g_error_free (conv_error);
470 g_strfreev ((gchar **) wargv);
475 if (flags & G_SPAWN_SEARCH_PATH)
477 rc = _wspawnvpe (mode, wargv0, (const wchar_t **) wargv, (const wchar_t **) wenvp);
479 rc = _wspawnvp (mode, wargv0, (const wchar_t **) wargv);
482 rc = _wspawnve (mode, wargv0, (const wchar_t **) wargv, (const wchar_t **) wenvp);
484 rc = _wspawnv (mode, wargv0, (const wchar_t **) wargv);
487 g_strfreev ((gchar **) wargv);
488 g_strfreev ((gchar **) wenvp);
492 if (rc == -1 && saved_errno != 0)
494 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
495 _("Failed to execute child process (%s)"),
496 g_strerror (saved_errno));
500 if (exit_status == NULL)
502 if (child_handle && do_return_handle)
503 *child_handle = (GPid) rc;
506 CloseHandle ((HANDLE) rc);
518 do_spawn_with_pipes (gint *exit_status,
519 gboolean do_return_handle,
520 const gchar *working_directory,
524 GSpawnChildSetupFunc child_setup,
526 gint *standard_input,
527 gint *standard_output,
528 gint *standard_error,
532 char **protected_argv;
533 char args[ARG_COUNT][10];
539 int stdin_pipe[2] = { -1, -1 };
540 int stdout_pipe[2] = { -1, -1 };
541 int stderr_pipe[2] = { -1, -1 };
542 int child_err_report_pipe[2] = { -1, -1 };
543 int helper_sync_pipe[2] = { -1, -1 };
544 gintptr helper_report[2];
545 static gboolean warned_about_child_setup = FALSE;
546 GError *conv_error = NULL;
547 gint conv_error_index;
548 gchar *helper_process;
549 CONSOLE_CURSOR_INFO cursor_info;
550 wchar_t *whelper, **wargv, **wenvp;
551 extern gchar *_glib_get_dll_directory (void);
552 gchar *glib_dll_directory;
554 if (child_setup && !warned_about_child_setup)
556 warned_about_child_setup = TRUE;
557 g_warning ("passing a child setup function to the g_spawn functions is pointless on Windows and it is ignored");
560 argc = protect_argv (argv, &protected_argv);
562 if (!standard_input && !standard_output && !standard_error &&
563 (flags & G_SPAWN_CHILD_INHERITS_STDIN) &&
564 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL) &&
565 !(flags & G_SPAWN_STDERR_TO_DEV_NULL) &&
566 (working_directory == NULL || !*working_directory) &&
567 (flags & G_SPAWN_LEAVE_DESCRIPTORS_OPEN))
569 /* We can do without the helper process */
571 do_spawn_directly (exit_status, do_return_handle, flags,
572 argv, envp, protected_argv,
573 child_handle, error);
574 g_strfreev (protected_argv);
578 if (standard_input && !make_pipe (stdin_pipe, error))
579 goto cleanup_and_fail;
581 if (standard_output && !make_pipe (stdout_pipe, error))
582 goto cleanup_and_fail;
584 if (standard_error && !make_pipe (stderr_pipe, error))
585 goto cleanup_and_fail;
587 if (!make_pipe (child_err_report_pipe, error))
588 goto cleanup_and_fail;
590 if (!make_pipe (helper_sync_pipe, error))
591 goto cleanup_and_fail;
593 new_argv = g_new (char *, argc + 1 + ARG_COUNT);
594 if (GetConsoleCursorInfo (GetStdHandle (STD_OUTPUT_HANDLE), &cursor_info))
595 helper_process = HELPER_PROCESS "-console.exe";
597 helper_process = HELPER_PROCESS ".exe";
599 glib_dll_directory = _glib_get_dll_directory ();
600 if (glib_dll_directory != NULL)
602 helper_process = g_build_filename (glib_dll_directory, helper_process, NULL);
603 g_free (glib_dll_directory);
606 helper_process = g_strdup (helper_process);
608 new_argv[0] = protect_argv_string (helper_process);
610 _g_sprintf (args[ARG_CHILD_ERR_REPORT], "%d", child_err_report_pipe[1]);
611 new_argv[ARG_CHILD_ERR_REPORT] = args[ARG_CHILD_ERR_REPORT];
613 /* Make the read end of the child error report pipe
614 * noninherited. Otherwise it will needlessly be inherited by the
615 * helper process, and the started actual user process. As such that
616 * shouldn't harm, but it is unnecessary.
618 child_err_report_pipe[0] = dup_noninherited (child_err_report_pipe[0], _O_RDONLY);
620 if (flags & G_SPAWN_FILE_AND_ARGV_ZERO)
622 /* Overload ARG_CHILD_ERR_REPORT to also encode the
623 * G_SPAWN_FILE_AND_ARGV_ZERO functionality.
625 strcat (args[ARG_CHILD_ERR_REPORT], "#");
628 _g_sprintf (args[ARG_HELPER_SYNC], "%d", helper_sync_pipe[0]);
629 new_argv[ARG_HELPER_SYNC] = args[ARG_HELPER_SYNC];
631 /* Make the write end of the sync pipe noninherited. Otherwise the
632 * helper process will inherit it, and thus if this process happens
633 * to crash before writing the sync byte to the pipe, the helper
634 * process won't read but won't get any EOF either, as it has the
635 * write end open itself.
637 helper_sync_pipe[1] = dup_noninherited (helper_sync_pipe[1], _O_WRONLY);
641 _g_sprintf (args[ARG_STDIN], "%d", stdin_pipe[0]);
642 new_argv[ARG_STDIN] = args[ARG_STDIN];
644 else if (flags & G_SPAWN_CHILD_INHERITS_STDIN)
646 /* Let stdin be alone */
647 new_argv[ARG_STDIN] = "-";
651 /* Keep process from blocking on a read of stdin */
652 new_argv[ARG_STDIN] = "z";
657 _g_sprintf (args[ARG_STDOUT], "%d", stdout_pipe[1]);
658 new_argv[ARG_STDOUT] = args[ARG_STDOUT];
660 else if (flags & G_SPAWN_STDOUT_TO_DEV_NULL)
662 new_argv[ARG_STDOUT] = "z";
666 new_argv[ARG_STDOUT] = "-";
671 _g_sprintf (args[ARG_STDERR], "%d", stderr_pipe[1]);
672 new_argv[ARG_STDERR] = args[ARG_STDERR];
674 else if (flags & G_SPAWN_STDERR_TO_DEV_NULL)
676 new_argv[ARG_STDERR] = "z";
680 new_argv[ARG_STDERR] = "-";
683 if (working_directory && *working_directory)
684 new_argv[ARG_WORKING_DIRECTORY] = protect_argv_string (working_directory);
686 new_argv[ARG_WORKING_DIRECTORY] = g_strdup ("-");
688 if (!(flags & G_SPAWN_LEAVE_DESCRIPTORS_OPEN))
689 new_argv[ARG_CLOSE_DESCRIPTORS] = "y";
691 new_argv[ARG_CLOSE_DESCRIPTORS] = "-";
693 if (flags & G_SPAWN_SEARCH_PATH)
694 new_argv[ARG_USE_PATH] = "y";
696 new_argv[ARG_USE_PATH] = "-";
698 if (exit_status == NULL)
699 new_argv[ARG_WAIT] = "-";
701 new_argv[ARG_WAIT] = "w";
703 for (i = 0; i <= argc; i++)
704 new_argv[ARG_PROGRAM + i] = protected_argv[i];
710 g_print ("calling %s with argv:\n", helper_process);
711 for (i = 0; i < argc + 1 + ARG_COUNT; i++)
712 g_print ("argv[%d]: %s\n", i, (new_argv[i] ? new_argv[i] : "NULL"));
715 if (!utf8_charv_to_wcharv (new_argv, &wargv, &conv_error_index, &conv_error))
717 if (conv_error_index == ARG_WORKING_DIRECTORY)
718 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
719 _("Invalid working directory: %s"),
720 conv_error->message);
722 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
723 _("Invalid string in argument vector at %d: %s"),
724 conv_error_index - ARG_PROGRAM, conv_error->message);
725 g_error_free (conv_error);
726 g_strfreev (protected_argv);
727 g_free (new_argv[0]);
728 g_free (new_argv[ARG_WORKING_DIRECTORY]);
730 g_free (helper_process);
732 goto cleanup_and_fail;
735 if (!utf8_charv_to_wcharv (envp, &wenvp, NULL, &conv_error))
737 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
738 _("Invalid string in environment: %s"),
739 conv_error->message);
740 g_error_free (conv_error);
741 g_strfreev (protected_argv);
742 g_free (new_argv[0]);
743 g_free (new_argv[ARG_WORKING_DIRECTORY]);
745 g_free (helper_process);
746 g_strfreev ((gchar **) wargv);
748 goto cleanup_and_fail;
751 whelper = g_utf8_to_utf16 (helper_process, -1, NULL, NULL, NULL);
752 g_free (helper_process);
755 rc = _wspawnvpe (P_NOWAIT, whelper, (const wchar_t **) wargv, (const wchar_t **) wenvp);
757 rc = _wspawnvp (P_NOWAIT, whelper, (const wchar_t **) wargv);
762 g_strfreev ((gchar **) wargv);
763 g_strfreev ((gchar **) wenvp);
765 /* Close the other process's ends of the pipes in this process,
766 * otherwise the reader will never get EOF.
768 close_and_invalidate (&child_err_report_pipe[1]);
769 close_and_invalidate (&helper_sync_pipe[0]);
770 close_and_invalidate (&stdin_pipe[0]);
771 close_and_invalidate (&stdout_pipe[1]);
772 close_and_invalidate (&stderr_pipe[1]);
774 g_strfreev (protected_argv);
776 g_free (new_argv[0]);
777 g_free (new_argv[ARG_WORKING_DIRECTORY]);
780 /* Check if gspawn-win32-helper couldn't be run */
781 if (rc == -1 && saved_errno != 0)
783 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
784 _("Failed to execute helper program (%s)"),
785 g_strerror (saved_errno));
786 goto cleanup_and_fail;
789 if (exit_status != NULL)
791 /* Synchronous case. Pass helper's report pipe back to caller,
792 * which takes care of reading it after the grandchild has
795 g_assert (err_report != NULL);
796 *err_report = child_err_report_pipe[0];
797 write (helper_sync_pipe[1], " ", 1);
798 close_and_invalidate (&helper_sync_pipe[1]);
802 /* Asynchronous case. We read the helper's report right away. */
803 if (!read_helper_report (child_err_report_pipe[0], helper_report, error))
804 goto cleanup_and_fail;
806 close_and_invalidate (&child_err_report_pipe[0]);
808 switch (helper_report[0])
811 if (child_handle && do_return_handle)
813 /* rc is our HANDLE for gspawn-win32-helper. It has
814 * told us the HANDLE of its child. Duplicate that into
815 * a HANDLE valid in this process.
817 if (!DuplicateHandle ((HANDLE) rc, (HANDLE) helper_report[1],
818 GetCurrentProcess (), (LPHANDLE) child_handle,
819 0, TRUE, DUPLICATE_SAME_ACCESS))
821 char *emsg = g_win32_error_message (GetLastError ());
822 g_print("%s\n", emsg);
826 else if (child_handle)
828 write (helper_sync_pipe[1], " ", 1);
829 close_and_invalidate (&helper_sync_pipe[1]);
833 write (helper_sync_pipe[1], " ", 1);
834 close_and_invalidate (&helper_sync_pipe[1]);
835 set_child_error (helper_report, working_directory, error);
836 goto cleanup_and_fail;
840 /* Success against all odds! return the information */
843 *standard_input = stdin_pipe[1];
845 *standard_output = stdout_pipe[0];
847 *standard_error = stderr_pipe[0];
849 CloseHandle ((HANDLE) rc);
856 CloseHandle ((HANDLE) rc);
857 if (child_err_report_pipe[0] != -1)
858 close (child_err_report_pipe[0]);
859 if (child_err_report_pipe[1] != -1)
860 close (child_err_report_pipe[1]);
861 if (helper_sync_pipe[0] != -1)
862 close (helper_sync_pipe[0]);
863 if (helper_sync_pipe[1] != -1)
864 close (helper_sync_pipe[1]);
865 if (stdin_pipe[0] != -1)
866 close (stdin_pipe[0]);
867 if (stdin_pipe[1] != -1)
868 close (stdin_pipe[1]);
869 if (stdout_pipe[0] != -1)
870 close (stdout_pipe[0]);
871 if (stdout_pipe[1] != -1)
872 close (stdout_pipe[1]);
873 if (stderr_pipe[0] != -1)
874 close (stderr_pipe[0]);
875 if (stderr_pipe[1] != -1)
876 close (stderr_pipe[1]);
882 g_spawn_sync_utf8 (const gchar *working_directory,
886 GSpawnChildSetupFunc child_setup,
888 gchar **standard_output,
889 gchar **standard_error,
895 gint reportpipe = -1;
896 GIOChannel *outchannel = NULL;
897 GIOChannel *errchannel = NULL;
898 GPollFD outfd, errfd;
904 GString *outstr = NULL;
905 GString *errstr = NULL;
909 g_return_val_if_fail (argv != NULL, FALSE);
910 g_return_val_if_fail (!(flags & G_SPAWN_DO_NOT_REAP_CHILD), FALSE);
911 g_return_val_if_fail (standard_output == NULL ||
912 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE);
913 g_return_val_if_fail (standard_error == NULL ||
914 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE);
916 /* Just to ensure segfaults if callers try to use
917 * these when an error is reported.
920 *standard_output = NULL;
923 *standard_error = NULL;
925 if (!do_spawn_with_pipes (&status,
934 standard_output ? &outpipe : NULL,
935 standard_error ? &errpipe : NULL,
940 /* Read data from child. */
946 outstr = g_string_new (NULL);
947 outchannel = g_io_channel_win32_new_fd (outpipe);
948 g_io_channel_set_encoding (outchannel, NULL, NULL);
949 g_io_channel_set_buffered (outchannel, FALSE);
950 g_io_channel_win32_make_pollfd (outchannel,
951 G_IO_IN | G_IO_ERR | G_IO_HUP,
954 g_print ("outfd=%p\n", (HANDLE) outfd.fd);
959 errstr = g_string_new (NULL);
960 errchannel = g_io_channel_win32_new_fd (errpipe);
961 g_io_channel_set_encoding (errchannel, NULL, NULL);
962 g_io_channel_set_buffered (errchannel, FALSE);
963 g_io_channel_win32_make_pollfd (errchannel,
964 G_IO_IN | G_IO_ERR | G_IO_HUP,
967 g_print ("errfd=%p\n", (HANDLE) errfd.fd);
970 /* Read data until we get EOF on all pipes. */
971 while (!failed && (outpipe >= 0 || errpipe >= 0))
988 g_print ("g_spawn_sync: calling g_io_channel_win32_poll, nfds=%d\n",
991 ret = g_io_channel_win32_poll (fds, nfds, -1);
997 g_set_error_literal (error, G_SPAWN_ERROR, G_SPAWN_ERROR_READ,
998 _("Unexpected error in g_io_channel_win32_poll() reading data from a child process"));
1003 if (outpipe >= 0 && (fds[outindex].revents & G_IO_IN))
1005 switch (read_data (outstr, outchannel, error))
1009 g_print ("g_spawn_sync: outchannel: READ_FAILED\n");
1014 g_print ("g_spawn_sync: outchannel: READ_EOF\n");
1015 g_io_channel_unref (outchannel);
1017 close_and_invalidate (&outpipe);
1021 g_print ("g_spawn_sync: outchannel: OK\n");
1029 if (errpipe >= 0 && (fds[errindex].revents & G_IO_IN))
1031 switch (read_data (errstr, errchannel, error))
1035 g_print ("g_spawn_sync: errchannel: READ_FAILED\n");
1040 g_print ("g_spawn_sync: errchannel: READ_EOF\n");
1041 g_io_channel_unref (errchannel);
1043 close_and_invalidate (&errpipe);
1047 g_print ("g_spawn_sync: errchannel: OK\n");
1056 if (reportpipe == -1)
1058 /* No helper process, exit status of actual spawned process
1059 * already available.
1062 *exit_status = status;
1066 /* Helper process was involved. Read its report now after the
1067 * grandchild has finished.
1069 gintptr helper_report[2];
1071 if (!read_helper_report (reportpipe, helper_report, error))
1075 switch (helper_report[0])
1077 case CHILD_NO_ERROR:
1079 *exit_status = helper_report[1];
1082 set_child_error (helper_report, working_directory, error);
1087 close_and_invalidate (&reportpipe);
1091 /* These should only be open still if we had an error. */
1093 if (outchannel != NULL)
1094 g_io_channel_unref (outchannel);
1095 if (errchannel != NULL)
1096 g_io_channel_unref (errchannel);
1098 close_and_invalidate (&outpipe);
1100 close_and_invalidate (&errpipe);
1105 g_string_free (outstr, TRUE);
1107 g_string_free (errstr, TRUE);
1113 if (standard_output)
1114 *standard_output = g_string_free (outstr, FALSE);
1117 *standard_error = g_string_free (errstr, FALSE);
1124 g_spawn_async_with_pipes_utf8 (const gchar *working_directory,
1128 GSpawnChildSetupFunc child_setup,
1131 gint *standard_input,
1132 gint *standard_output,
1133 gint *standard_error,
1136 g_return_val_if_fail (argv != NULL, FALSE);
1137 g_return_val_if_fail (standard_output == NULL ||
1138 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE);
1139 g_return_val_if_fail (standard_error == NULL ||
1140 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE);
1141 /* can't inherit stdin if we have an input pipe. */
1142 g_return_val_if_fail (standard_input == NULL ||
1143 !(flags & G_SPAWN_CHILD_INHERITS_STDIN), FALSE);
1145 return do_spawn_with_pipes (NULL,
1146 (flags & G_SPAWN_DO_NOT_REAP_CHILD),
1161 g_spawn_command_line_sync_utf8 (const gchar *command_line,
1162 gchar **standard_output,
1163 gchar **standard_error,
1170 g_return_val_if_fail (command_line != NULL, FALSE);
1172 if (!g_shell_parse_argv (command_line,
1177 retval = g_spawn_sync_utf8 (NULL,
1180 G_SPAWN_SEARCH_PATH,
1193 g_spawn_command_line_async_utf8 (const gchar *command_line,
1199 g_return_val_if_fail (command_line != NULL, FALSE);
1201 if (!g_shell_parse_argv (command_line,
1206 retval = g_spawn_async_utf8 (NULL,
1209 G_SPAWN_SEARCH_PATH,
1220 g_spawn_close_pid (GPid pid)
1225 #if !defined (_WIN64)
1227 /* Binary compatibility versions that take system codepage pathnames,
1228 * argument vectors and environments. These get used only by code
1229 * built against 2.8.1 or earlier. Code built against 2.8.2 or later
1230 * will use the _utf8 versions above (see the #defines in gspawn.h).
1233 #undef g_spawn_async
1234 #undef g_spawn_async_with_pipes
1236 #undef g_spawn_command_line_sync
1237 #undef g_spawn_command_line_async
1240 setup_utf8_copies (const gchar *working_directory,
1241 gchar **utf8_working_directory,
1250 if (working_directory == NULL)
1251 *utf8_working_directory = NULL;
1254 GError *conv_error = NULL;
1256 *utf8_working_directory = g_locale_to_utf8 (working_directory, -1, NULL, NULL, &conv_error);
1257 if (*utf8_working_directory == NULL)
1259 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
1260 _("Invalid working directory: %s"),
1261 conv_error->message);
1262 g_error_free (conv_error);
1270 *utf8_argv = g_new (gchar *, argc + 1);
1271 for (i = 0; i < argc; i++)
1273 GError *conv_error = NULL;
1275 (*utf8_argv)[i] = g_locale_to_utf8 (argv[i], -1, NULL, NULL, &conv_error);
1276 if ((*utf8_argv)[i] == NULL)
1278 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
1279 _("Invalid string in argument vector at %d: %s"),
1280 i, conv_error->message);
1281 g_error_free (conv_error);
1283 g_strfreev (*utf8_argv);
1286 g_free (*utf8_working_directory);
1287 *utf8_working_directory = NULL;
1292 (*utf8_argv)[argc] = NULL;
1303 *utf8_envp = g_new (gchar *, envc + 1);
1304 for (i = 0; i < envc; i++)
1306 GError *conv_error = NULL;
1308 (*utf8_envp)[i] = g_locale_to_utf8 (envp[i], -1, NULL, NULL, &conv_error);
1309 if ((*utf8_envp)[i] == NULL)
1311 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
1312 _("Invalid string in environment: %s"),
1313 conv_error->message);
1314 g_error_free (conv_error);
1316 g_strfreev (*utf8_envp);
1319 g_strfreev (*utf8_argv);
1322 g_free (*utf8_working_directory);
1323 *utf8_working_directory = NULL;
1328 (*utf8_envp)[envc] = NULL;
1334 free_utf8_copies (gchar *utf8_working_directory,
1338 g_free (utf8_working_directory);
1339 g_strfreev (utf8_argv);
1340 g_strfreev (utf8_envp);
1344 g_spawn_async_with_pipes (const gchar *working_directory,
1348 GSpawnChildSetupFunc child_setup,
1351 gint *standard_input,
1352 gint *standard_output,
1353 gint *standard_error,
1356 gchar *utf8_working_directory;
1361 if (!setup_utf8_copies (working_directory, &utf8_working_directory,
1367 retval = g_spawn_async_with_pipes_utf8 (utf8_working_directory,
1368 utf8_argv, utf8_envp,
1369 flags, child_setup, user_data,
1371 standard_input, standard_output, standard_error,
1374 free_utf8_copies (utf8_working_directory, utf8_argv, utf8_envp);
1380 g_spawn_async (const gchar *working_directory,
1384 GSpawnChildSetupFunc child_setup,
1389 return g_spawn_async_with_pipes (working_directory,
1400 g_spawn_sync (const gchar *working_directory,
1404 GSpawnChildSetupFunc child_setup,
1406 gchar **standard_output,
1407 gchar **standard_error,
1411 gchar *utf8_working_directory;
1416 if (!setup_utf8_copies (working_directory, &utf8_working_directory,
1422 retval = g_spawn_sync_utf8 (utf8_working_directory,
1423 utf8_argv, utf8_envp,
1424 flags, child_setup, user_data,
1425 standard_output, standard_error, exit_status,
1428 free_utf8_copies (utf8_working_directory, utf8_argv, utf8_envp);
1434 g_spawn_command_line_sync (const gchar *command_line,
1435 gchar **standard_output,
1436 gchar **standard_error,
1443 g_return_val_if_fail (command_line != NULL, FALSE);
1445 if (!g_shell_parse_argv (command_line,
1450 retval = g_spawn_sync (NULL,
1453 G_SPAWN_SEARCH_PATH,
1466 g_spawn_command_line_async (const gchar *command_line,
1472 g_return_val_if_fail (command_line != NULL, FALSE);
1474 if (!g_shell_parse_argv (command_line,
1479 retval = g_spawn_async (NULL,
1482 G_SPAWN_SEARCH_PATH,
1492 #endif /* !_WIN64 */
1494 #endif /* !GSPAWN_HELPER */
1496 #define __G_SPAWN_C__
1497 #include "galiasdef.c"