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)
297 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
298 _("Failed to create pipe for communicating with child process (%s)"),
306 /* The helper process writes a status report back to us, through a
307 * pipe, consisting of two ints.
310 read_helper_report (int fd,
316 while (bytes < sizeof(gintptr)*2)
321 g_print ("%s:read_helper_report: read %" G_GSIZE_FORMAT "...\n",
323 sizeof(gintptr)*2 - bytes);
325 chunk = read (fd, ((gchar*)report) + bytes,
326 sizeof(gintptr)*2 - bytes);
329 g_print ("...got %d bytes\n", chunk);
333 /* Some weird shit happened, bail out */
335 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
336 _("Failed to read from child pipe (%s)"),
343 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
344 _("Failed to read from child pipe (%s)"),
352 if (bytes < sizeof(gintptr)*2)
359 set_child_error (gintptr report[2],
360 const gchar *working_directory,
365 case CHILD_CHDIR_FAILED:
366 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
367 _("Failed to change to directory '%s' (%s)"),
369 g_strerror (report[1]));
371 case CHILD_SPAWN_FAILED:
372 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
373 _("Failed to execute child process (%s)"),
374 g_strerror (report[1]));
377 g_assert_not_reached ();
382 utf8_charv_to_wcharv (char **utf8_charv,
387 wchar_t **retval = NULL;
390 if (utf8_charv != NULL)
394 while (utf8_charv[n])
396 retval = g_new (wchar_t *, n + 1);
398 for (i = 0; i < n; i++)
400 retval[i] = g_utf8_to_utf16 (utf8_charv[i], -1, NULL, NULL, error);
401 if (retval[i] == NULL)
406 g_free (retval[--i]);
419 do_spawn_directly (gint *exit_status,
420 gboolean do_return_handle,
424 char **protected_argv,
428 const int mode = (exit_status == NULL) ? P_NOWAIT : P_WAIT;
432 GError *conv_error = NULL;
433 gint conv_error_index;
434 wchar_t *wargv0, **wargv, **wenvp;
436 new_argv = (flags & G_SPAWN_FILE_AND_ARGV_ZERO) ? protected_argv + 1 : protected_argv;
438 wargv0 = g_utf8_to_utf16 (argv[0], -1, NULL, NULL, &conv_error);
441 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
442 _("Invalid program name: %s"),
443 conv_error->message);
444 g_error_free (conv_error);
449 if (!utf8_charv_to_wcharv (new_argv, &wargv, &conv_error_index, &conv_error))
451 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
452 _("Invalid string in argument vector at %d: %s"),
453 conv_error_index, conv_error->message);
454 g_error_free (conv_error);
460 if (!utf8_charv_to_wcharv (envp, &wenvp, NULL, &conv_error))
462 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
463 _("Invalid string in environment: %s"),
464 conv_error->message);
465 g_error_free (conv_error);
467 g_strfreev ((gchar **) wargv);
472 if (flags & G_SPAWN_SEARCH_PATH)
474 rc = _wspawnvpe (mode, wargv0, (const wchar_t **) wargv, (const wchar_t **) wenvp);
476 rc = _wspawnvp (mode, wargv0, (const wchar_t **) wargv);
479 rc = _wspawnve (mode, wargv0, (const wchar_t **) wargv, (const wchar_t **) wenvp);
481 rc = _wspawnv (mode, wargv0, (const wchar_t **) wargv);
484 g_strfreev ((gchar **) wargv);
485 g_strfreev ((gchar **) wenvp);
489 if (rc == -1 && saved_errno != 0)
491 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
492 _("Failed to execute child process (%s)"),
493 g_strerror (saved_errno));
497 if (exit_status == NULL)
499 if (child_handle && do_return_handle)
500 *child_handle = (GPid) rc;
503 CloseHandle ((HANDLE) rc);
515 do_spawn_with_pipes (gint *exit_status,
516 gboolean do_return_handle,
517 const gchar *working_directory,
521 GSpawnChildSetupFunc child_setup,
523 gint *standard_input,
524 gint *standard_output,
525 gint *standard_error,
529 char **protected_argv;
530 char args[ARG_COUNT][10];
536 int stdin_pipe[2] = { -1, -1 };
537 int stdout_pipe[2] = { -1, -1 };
538 int stderr_pipe[2] = { -1, -1 };
539 int child_err_report_pipe[2] = { -1, -1 };
540 int helper_sync_pipe[2] = { -1, -1 };
541 gintptr helper_report[2];
542 static gboolean warned_about_child_setup = FALSE;
543 GError *conv_error = NULL;
544 gint conv_error_index;
545 gchar *helper_process;
546 CONSOLE_CURSOR_INFO cursor_info;
547 wchar_t *whelper, **wargv, **wenvp;
548 extern gchar *_glib_get_dll_directory (void);
549 gchar *glib_dll_directory;
551 if (child_setup && !warned_about_child_setup)
553 warned_about_child_setup = TRUE;
554 g_warning ("passing a child setup function to the g_spawn functions is pointless on Windows and it is ignored");
557 argc = protect_argv (argv, &protected_argv);
559 if (!standard_input && !standard_output && !standard_error &&
560 (flags & G_SPAWN_CHILD_INHERITS_STDIN) &&
561 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL) &&
562 !(flags & G_SPAWN_STDERR_TO_DEV_NULL) &&
563 (working_directory == NULL || !*working_directory) &&
564 (flags & G_SPAWN_LEAVE_DESCRIPTORS_OPEN))
566 /* We can do without the helper process */
568 do_spawn_directly (exit_status, do_return_handle, flags,
569 argv, envp, protected_argv,
570 child_handle, error);
571 g_strfreev (protected_argv);
575 if (standard_input && !make_pipe (stdin_pipe, error))
576 goto cleanup_and_fail;
578 if (standard_output && !make_pipe (stdout_pipe, error))
579 goto cleanup_and_fail;
581 if (standard_error && !make_pipe (stderr_pipe, error))
582 goto cleanup_and_fail;
584 if (!make_pipe (child_err_report_pipe, error))
585 goto cleanup_and_fail;
587 if (!make_pipe (helper_sync_pipe, error))
588 goto cleanup_and_fail;
590 new_argv = g_new (char *, argc + 1 + ARG_COUNT);
591 if (GetConsoleCursorInfo (GetStdHandle (STD_OUTPUT_HANDLE), &cursor_info))
592 helper_process = HELPER_PROCESS "-console.exe";
594 helper_process = HELPER_PROCESS ".exe";
596 glib_dll_directory = _glib_get_dll_directory ();
597 if (glib_dll_directory != NULL)
599 helper_process = g_build_filename (glib_dll_directory, helper_process, NULL);
600 g_free (glib_dll_directory);
603 helper_process = g_strdup (helper_process);
605 new_argv[0] = protect_argv_string (helper_process);
607 _g_sprintf (args[ARG_CHILD_ERR_REPORT], "%d", child_err_report_pipe[1]);
608 new_argv[ARG_CHILD_ERR_REPORT] = args[ARG_CHILD_ERR_REPORT];
610 /* Make the read end of the child error report pipe
611 * noninherited. Otherwise it will needlessly be inherited by the
612 * helper process, and the started actual user process. As such that
613 * shouldn't harm, but it is unnecessary.
615 child_err_report_pipe[0] = dup_noninherited (child_err_report_pipe[0], _O_RDONLY);
617 if (flags & G_SPAWN_FILE_AND_ARGV_ZERO)
619 /* Overload ARG_CHILD_ERR_REPORT to also encode the
620 * G_SPAWN_FILE_AND_ARGV_ZERO functionality.
622 strcat (args[ARG_CHILD_ERR_REPORT], "#");
625 _g_sprintf (args[ARG_HELPER_SYNC], "%d", helper_sync_pipe[0]);
626 new_argv[ARG_HELPER_SYNC] = args[ARG_HELPER_SYNC];
628 /* Make the write end of the sync pipe noninherited. Otherwise the
629 * helper process will inherit it, and thus if this process happens
630 * to crash before writing the sync byte to the pipe, the helper
631 * process won't read but won't get any EOF either, as it has the
632 * write end open itself.
634 helper_sync_pipe[1] = dup_noninherited (helper_sync_pipe[1], _O_WRONLY);
638 _g_sprintf (args[ARG_STDIN], "%d", stdin_pipe[0]);
639 new_argv[ARG_STDIN] = args[ARG_STDIN];
641 else if (flags & G_SPAWN_CHILD_INHERITS_STDIN)
643 /* Let stdin be alone */
644 new_argv[ARG_STDIN] = "-";
648 /* Keep process from blocking on a read of stdin */
649 new_argv[ARG_STDIN] = "z";
654 _g_sprintf (args[ARG_STDOUT], "%d", stdout_pipe[1]);
655 new_argv[ARG_STDOUT] = args[ARG_STDOUT];
657 else if (flags & G_SPAWN_STDOUT_TO_DEV_NULL)
659 new_argv[ARG_STDOUT] = "z";
663 new_argv[ARG_STDOUT] = "-";
668 _g_sprintf (args[ARG_STDERR], "%d", stderr_pipe[1]);
669 new_argv[ARG_STDERR] = args[ARG_STDERR];
671 else if (flags & G_SPAWN_STDERR_TO_DEV_NULL)
673 new_argv[ARG_STDERR] = "z";
677 new_argv[ARG_STDERR] = "-";
680 if (working_directory && *working_directory)
681 new_argv[ARG_WORKING_DIRECTORY] = protect_argv_string (working_directory);
683 new_argv[ARG_WORKING_DIRECTORY] = g_strdup ("-");
685 if (!(flags & G_SPAWN_LEAVE_DESCRIPTORS_OPEN))
686 new_argv[ARG_CLOSE_DESCRIPTORS] = "y";
688 new_argv[ARG_CLOSE_DESCRIPTORS] = "-";
690 if (flags & G_SPAWN_SEARCH_PATH)
691 new_argv[ARG_USE_PATH] = "y";
693 new_argv[ARG_USE_PATH] = "-";
695 if (exit_status == NULL)
696 new_argv[ARG_WAIT] = "-";
698 new_argv[ARG_WAIT] = "w";
700 for (i = 0; i <= argc; i++)
701 new_argv[ARG_PROGRAM + i] = protected_argv[i];
707 g_print ("calling %s with argv:\n", helper_process);
708 for (i = 0; i < argc + 1 + ARG_COUNT; i++)
709 g_print ("argv[%d]: %s\n", i, (new_argv[i] ? new_argv[i] : "NULL"));
712 if (!utf8_charv_to_wcharv (new_argv, &wargv, &conv_error_index, &conv_error))
714 if (conv_error_index == ARG_WORKING_DIRECTORY)
715 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
716 _("Invalid working directory: %s"),
717 conv_error->message);
719 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
720 _("Invalid string in argument vector at %d: %s"),
721 conv_error_index - ARG_PROGRAM, conv_error->message);
722 g_error_free (conv_error);
723 g_strfreev (protected_argv);
724 g_free (new_argv[0]);
725 g_free (new_argv[ARG_WORKING_DIRECTORY]);
727 g_free (helper_process);
729 goto cleanup_and_fail;
732 if (!utf8_charv_to_wcharv (envp, &wenvp, NULL, &conv_error))
734 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
735 _("Invalid string in environment: %s"),
736 conv_error->message);
737 g_error_free (conv_error);
738 g_strfreev (protected_argv);
739 g_free (new_argv[0]);
740 g_free (new_argv[ARG_WORKING_DIRECTORY]);
742 g_free (helper_process);
743 g_strfreev ((gchar **) wargv);
745 goto cleanup_and_fail;
748 whelper = g_utf8_to_utf16 (helper_process, -1, NULL, NULL, NULL);
749 g_free (helper_process);
752 rc = _wspawnvpe (P_NOWAIT, whelper, (const wchar_t **) wargv, (const wchar_t **) wenvp);
754 rc = _wspawnvp (P_NOWAIT, whelper, (const wchar_t **) wargv);
759 g_strfreev ((gchar **) wargv);
760 g_strfreev ((gchar **) wenvp);
762 /* Close the other process's ends of the pipes in this process,
763 * otherwise the reader will never get EOF.
765 close_and_invalidate (&child_err_report_pipe[1]);
766 close_and_invalidate (&helper_sync_pipe[0]);
767 close_and_invalidate (&stdin_pipe[0]);
768 close_and_invalidate (&stdout_pipe[1]);
769 close_and_invalidate (&stderr_pipe[1]);
771 g_strfreev (protected_argv);
773 g_free (new_argv[0]);
774 g_free (new_argv[ARG_WORKING_DIRECTORY]);
777 /* Check if gspawn-win32-helper couldn't be run */
778 if (rc == -1 && saved_errno != 0)
780 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
781 _("Failed to execute helper program (%s)"),
782 g_strerror (saved_errno));
783 goto cleanup_and_fail;
786 if (exit_status != NULL)
788 /* Synchronous case. Pass helper's report pipe back to caller,
789 * which takes care of reading it after the grandchild has
792 g_assert (err_report != NULL);
793 *err_report = child_err_report_pipe[0];
794 write (helper_sync_pipe[1], " ", 1);
795 close_and_invalidate (&helper_sync_pipe[1]);
799 /* Asynchronous case. We read the helper's report right away. */
800 if (!read_helper_report (child_err_report_pipe[0], helper_report, error))
801 goto cleanup_and_fail;
803 close_and_invalidate (&child_err_report_pipe[0]);
805 switch (helper_report[0])
808 if (child_handle && do_return_handle)
810 /* rc is our HANDLE for gspawn-win32-helper. It has
811 * told us the HANDLE of its child. Duplicate that into
812 * a HANDLE valid in this process.
814 if (!DuplicateHandle ((HANDLE) rc, (HANDLE) helper_report[1],
815 GetCurrentProcess (), (LPHANDLE) child_handle,
816 0, TRUE, DUPLICATE_SAME_ACCESS))
818 char *emsg = g_win32_error_message (GetLastError ());
819 g_print("%s\n", emsg);
823 else if (child_handle)
825 write (helper_sync_pipe[1], " ", 1);
826 close_and_invalidate (&helper_sync_pipe[1]);
830 write (helper_sync_pipe[1], " ", 1);
831 close_and_invalidate (&helper_sync_pipe[1]);
832 set_child_error (helper_report, working_directory, error);
833 goto cleanup_and_fail;
837 /* Success against all odds! return the information */
840 *standard_input = stdin_pipe[1];
842 *standard_output = stdout_pipe[0];
844 *standard_error = stderr_pipe[0];
846 CloseHandle ((HANDLE) rc);
853 CloseHandle ((HANDLE) rc);
854 if (child_err_report_pipe[0] != -1)
855 close (child_err_report_pipe[0]);
856 if (child_err_report_pipe[1] != -1)
857 close (child_err_report_pipe[1]);
858 if (helper_sync_pipe[0] != -1)
859 close (helper_sync_pipe[0]);
860 if (helper_sync_pipe[1] != -1)
861 close (helper_sync_pipe[1]);
862 if (stdin_pipe[0] != -1)
863 close (stdin_pipe[0]);
864 if (stdin_pipe[1] != -1)
865 close (stdin_pipe[1]);
866 if (stdout_pipe[0] != -1)
867 close (stdout_pipe[0]);
868 if (stdout_pipe[1] != -1)
869 close (stdout_pipe[1]);
870 if (stderr_pipe[0] != -1)
871 close (stderr_pipe[0]);
872 if (stderr_pipe[1] != -1)
873 close (stderr_pipe[1]);
879 g_spawn_sync_utf8 (const gchar *working_directory,
883 GSpawnChildSetupFunc child_setup,
885 gchar **standard_output,
886 gchar **standard_error,
892 gint reportpipe = -1;
893 GIOChannel *outchannel = NULL;
894 GIOChannel *errchannel = NULL;
895 GPollFD outfd, errfd;
901 GString *outstr = NULL;
902 GString *errstr = NULL;
906 g_return_val_if_fail (argv != NULL, FALSE);
907 g_return_val_if_fail (!(flags & G_SPAWN_DO_NOT_REAP_CHILD), FALSE);
908 g_return_val_if_fail (standard_output == NULL ||
909 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE);
910 g_return_val_if_fail (standard_error == NULL ||
911 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE);
913 /* Just to ensure segfaults if callers try to use
914 * these when an error is reported.
917 *standard_output = NULL;
920 *standard_error = NULL;
922 if (!do_spawn_with_pipes (&status,
931 standard_output ? &outpipe : NULL,
932 standard_error ? &errpipe : NULL,
937 /* Read data from child. */
943 outstr = g_string_new (NULL);
944 outchannel = g_io_channel_win32_new_fd (outpipe);
945 g_io_channel_set_encoding (outchannel, NULL, NULL);
946 g_io_channel_set_buffered (outchannel, FALSE);
947 g_io_channel_win32_make_pollfd (outchannel,
948 G_IO_IN | G_IO_ERR | G_IO_HUP,
951 g_print ("outfd=%p\n", (HANDLE) outfd.fd);
956 errstr = g_string_new (NULL);
957 errchannel = g_io_channel_win32_new_fd (errpipe);
958 g_io_channel_set_encoding (errchannel, NULL, NULL);
959 g_io_channel_set_buffered (errchannel, FALSE);
960 g_io_channel_win32_make_pollfd (errchannel,
961 G_IO_IN | G_IO_ERR | G_IO_HUP,
964 g_print ("errfd=%p\n", (HANDLE) errfd.fd);
967 /* Read data until we get EOF on all pipes. */
968 while (!failed && (outpipe >= 0 || errpipe >= 0))
985 g_print ("g_spawn_sync: calling g_io_channel_win32_poll, nfds=%d\n",
988 ret = g_io_channel_win32_poll (fds, nfds, -1);
994 g_set_error_literal (error, G_SPAWN_ERROR, G_SPAWN_ERROR_READ,
995 _("Unexpected error in g_io_channel_win32_poll() reading data from a child process"));
1000 if (outpipe >= 0 && (fds[outindex].revents & G_IO_IN))
1002 switch (read_data (outstr, outchannel, error))
1006 g_print ("g_spawn_sync: outchannel: READ_FAILED\n");
1011 g_print ("g_spawn_sync: outchannel: READ_EOF\n");
1012 g_io_channel_unref (outchannel);
1014 close_and_invalidate (&outpipe);
1018 g_print ("g_spawn_sync: outchannel: OK\n");
1026 if (errpipe >= 0 && (fds[errindex].revents & G_IO_IN))
1028 switch (read_data (errstr, errchannel, error))
1032 g_print ("g_spawn_sync: errchannel: READ_FAILED\n");
1037 g_print ("g_spawn_sync: errchannel: READ_EOF\n");
1038 g_io_channel_unref (errchannel);
1040 close_and_invalidate (&errpipe);
1044 g_print ("g_spawn_sync: errchannel: OK\n");
1053 if (reportpipe == -1)
1055 /* No helper process, exit status of actual spawned process
1056 * already available.
1059 *exit_status = status;
1063 /* Helper process was involved. Read its report now after the
1064 * grandchild has finished.
1066 gintptr helper_report[2];
1068 if (!read_helper_report (reportpipe, helper_report, error))
1072 switch (helper_report[0])
1074 case CHILD_NO_ERROR:
1076 *exit_status = helper_report[1];
1079 set_child_error (helper_report, working_directory, error);
1084 close_and_invalidate (&reportpipe);
1088 /* These should only be open still if we had an error. */
1090 if (outchannel != NULL)
1091 g_io_channel_unref (outchannel);
1092 if (errchannel != NULL)
1093 g_io_channel_unref (errchannel);
1095 close_and_invalidate (&outpipe);
1097 close_and_invalidate (&errpipe);
1102 g_string_free (outstr, TRUE);
1104 g_string_free (errstr, TRUE);
1110 if (standard_output)
1111 *standard_output = g_string_free (outstr, FALSE);
1114 *standard_error = g_string_free (errstr, FALSE);
1121 g_spawn_async_with_pipes_utf8 (const gchar *working_directory,
1125 GSpawnChildSetupFunc child_setup,
1128 gint *standard_input,
1129 gint *standard_output,
1130 gint *standard_error,
1133 g_return_val_if_fail (argv != NULL, FALSE);
1134 g_return_val_if_fail (standard_output == NULL ||
1135 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE);
1136 g_return_val_if_fail (standard_error == NULL ||
1137 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE);
1138 /* can't inherit stdin if we have an input pipe. */
1139 g_return_val_if_fail (standard_input == NULL ||
1140 !(flags & G_SPAWN_CHILD_INHERITS_STDIN), FALSE);
1142 return do_spawn_with_pipes (NULL,
1143 (flags & G_SPAWN_DO_NOT_REAP_CHILD),
1158 g_spawn_command_line_sync_utf8 (const gchar *command_line,
1159 gchar **standard_output,
1160 gchar **standard_error,
1167 g_return_val_if_fail (command_line != NULL, FALSE);
1169 if (!g_shell_parse_argv (command_line,
1174 retval = g_spawn_sync_utf8 (NULL,
1177 G_SPAWN_SEARCH_PATH,
1190 g_spawn_command_line_async_utf8 (const gchar *command_line,
1196 g_return_val_if_fail (command_line != NULL, FALSE);
1198 if (!g_shell_parse_argv (command_line,
1203 retval = g_spawn_async_utf8 (NULL,
1206 G_SPAWN_SEARCH_PATH,
1217 g_spawn_close_pid (GPid pid)
1222 #if !defined (_WIN64)
1224 /* Binary compatibility versions that take system codepage pathnames,
1225 * argument vectors and environments. These get used only by code
1226 * built against 2.8.1 or earlier. Code built against 2.8.2 or later
1227 * will use the _utf8 versions above (see the #defines in gspawn.h).
1230 #undef g_spawn_async
1231 #undef g_spawn_async_with_pipes
1233 #undef g_spawn_command_line_sync
1234 #undef g_spawn_command_line_async
1237 setup_utf8_copies (const gchar *working_directory,
1238 gchar **utf8_working_directory,
1247 if (working_directory == NULL)
1248 *utf8_working_directory = NULL;
1251 GError *conv_error = NULL;
1253 *utf8_working_directory = g_locale_to_utf8 (working_directory, -1, NULL, NULL, &conv_error);
1254 if (*utf8_working_directory == NULL)
1256 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_CHDIR,
1257 _("Invalid working directory: %s"),
1258 conv_error->message);
1259 g_error_free (conv_error);
1267 *utf8_argv = g_new (gchar *, argc + 1);
1268 for (i = 0; i < argc; i++)
1270 GError *conv_error = NULL;
1272 (*utf8_argv)[i] = g_locale_to_utf8 (argv[i], -1, NULL, NULL, &conv_error);
1273 if ((*utf8_argv)[i] == NULL)
1275 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
1276 _("Invalid string in argument vector at %d: %s"),
1277 i, conv_error->message);
1278 g_error_free (conv_error);
1280 g_strfreev (*utf8_argv);
1283 g_free (*utf8_working_directory);
1284 *utf8_working_directory = NULL;
1289 (*utf8_argv)[argc] = NULL;
1300 *utf8_envp = g_new (gchar *, envc + 1);
1301 for (i = 0; i < envc; i++)
1303 GError *conv_error = NULL;
1305 (*utf8_envp)[i] = g_locale_to_utf8 (envp[i], -1, NULL, NULL, &conv_error);
1306 if ((*utf8_envp)[i] == NULL)
1308 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED,
1309 _("Invalid string in environment: %s"),
1310 conv_error->message);
1311 g_error_free (conv_error);
1313 g_strfreev (*utf8_envp);
1316 g_strfreev (*utf8_argv);
1319 g_free (*utf8_working_directory);
1320 *utf8_working_directory = NULL;
1325 (*utf8_envp)[envc] = NULL;
1331 free_utf8_copies (gchar *utf8_working_directory,
1335 g_free (utf8_working_directory);
1336 g_strfreev (utf8_argv);
1337 g_strfreev (utf8_envp);
1341 g_spawn_async_with_pipes (const gchar *working_directory,
1345 GSpawnChildSetupFunc child_setup,
1348 gint *standard_input,
1349 gint *standard_output,
1350 gint *standard_error,
1353 gchar *utf8_working_directory;
1358 if (!setup_utf8_copies (working_directory, &utf8_working_directory,
1364 retval = g_spawn_async_with_pipes_utf8 (utf8_working_directory,
1365 utf8_argv, utf8_envp,
1366 flags, child_setup, user_data,
1368 standard_input, standard_output, standard_error,
1371 free_utf8_copies (utf8_working_directory, utf8_argv, utf8_envp);
1377 g_spawn_async (const gchar *working_directory,
1381 GSpawnChildSetupFunc child_setup,
1386 return g_spawn_async_with_pipes (working_directory,
1397 g_spawn_sync (const gchar *working_directory,
1401 GSpawnChildSetupFunc child_setup,
1403 gchar **standard_output,
1404 gchar **standard_error,
1408 gchar *utf8_working_directory;
1413 if (!setup_utf8_copies (working_directory, &utf8_working_directory,
1419 retval = g_spawn_sync_utf8 (utf8_working_directory,
1420 utf8_argv, utf8_envp,
1421 flags, child_setup, user_data,
1422 standard_output, standard_error, exit_status,
1425 free_utf8_copies (utf8_working_directory, utf8_argv, utf8_envp);
1431 g_spawn_command_line_sync (const gchar *command_line,
1432 gchar **standard_output,
1433 gchar **standard_error,
1440 g_return_val_if_fail (command_line != NULL, FALSE);
1442 if (!g_shell_parse_argv (command_line,
1447 retval = g_spawn_sync (NULL,
1450 G_SPAWN_SEARCH_PATH,
1463 g_spawn_command_line_async (const gchar *command_line,
1469 g_return_val_if_fail (command_line != NULL, FALSE);
1471 if (!g_shell_parse_argv (command_line,
1476 retval = g_spawn_async (NULL,
1479 G_SPAWN_SEARCH_PATH,
1489 #endif /* !_WIN64 */
1491 #endif /* !GSPAWN_HELPER */
1493 #define __G_SPAWN_C__
1494 #include "galiasdef.c"