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Diffstat (limited to 'lib/win32/glib-2.20.4/glib/gspawn-win32-helper.c')
-rw-r--r--lib/win32/glib-2.20.4/glib/gspawn-win32-helper.c333
1 files changed, 0 insertions, 333 deletions
diff --git a/lib/win32/glib-2.20.4/glib/gspawn-win32-helper.c b/lib/win32/glib-2.20.4/glib/gspawn-win32-helper.c
deleted file mode 100644
index 40108bb67a..0000000000
--- a/lib/win32/glib-2.20.4/glib/gspawn-win32-helper.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/* gspawn-win32-helper.c - Helper program for process launching on Win32.
- *
- * Copyright 2000 Red Hat, Inc.
- * Copyright 2000 Tor Lillqvist
- *
- * GLib is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * GLib is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with GLib; see the file COPYING.LIB. If not, write
- * to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-
-#include <fcntl.h>
-
-#undef G_LOG_DOMAIN
-#include "glib.h"
-#define GSPAWN_HELPER
-#include "gspawn-win32.c" /* For shared definitions */
-
-
-static void
-write_err_and_exit (gint fd,
- gintptr msg)
-{
- gintptr en = errno;
-
- write (fd, &msg, sizeof(gintptr));
- write (fd, &en, sizeof(gintptr));
-
- _exit (1);
-}
-
-#ifdef __GNUC__
-# ifndef _stdcall
-# define _stdcall __attribute__((stdcall))
-# endif
-#endif
-
-/* We build gspawn-win32-helper.exe as a Windows GUI application
- * to avoid any temporarily flashing console windows in case
- * the gspawn function is invoked by a GUI program. Thus, no main()
- * but a WinMain(). We do, however, still use argc and argv tucked
- * away in the global __argc and __argv by the C runtime startup code.
- */
-
-/* Info peeked from mingw runtime's source code. __wgetmainargs() is a
- * function to get the program's argv in wide char format.
- */
-
-typedef struct {
- int newmode;
-} _startupinfo;
-
-extern void __wgetmainargs(int *argc,
- wchar_t ***wargv,
- wchar_t ***wenviron,
- int expand_wildcards,
- _startupinfo *startupinfo);
-
-/* Copy of protect_argv that handles wchar_t strings */
-
-static gint
-protect_wargv (wchar_t **wargv,
- wchar_t ***new_wargv)
-{
- gint i;
- gint argc = 0;
-
- while (wargv[argc])
- ++argc;
- *new_wargv = g_new (wchar_t *, argc+1);
-
- /* Quote each argv element if necessary, so that it will get
- * reconstructed correctly in the C runtime startup code. Note that
- * the unquoting algorithm in the C runtime is really weird, and
- * rather different than what Unix shells do. See stdargv.c in the C
- * runtime sources (in the Platform SDK, in src/crt).
- *
- * Note that an new_wargv[0] constructed by this function should
- * *not* be passed as the filename argument to a _wspawn* or _wexec*
- * family function. That argument should be the real file name
- * without any quoting.
- */
- for (i = 0; i < argc; i++)
- {
- wchar_t *p = wargv[i];
- wchar_t *q;
- gint len = 0;
- gboolean need_dblquotes = FALSE;
- while (*p)
- {
- if (*p == ' ' || *p == '\t')
- need_dblquotes = TRUE;
- else if (*p == '"')
- len++;
- else if (*p == '\\')
- {
- wchar_t *pp = p;
- while (*pp && *pp == '\\')
- pp++;
- if (*pp == '"')
- len++;
- }
- len++;
- p++;
- }
-
- q = (*new_wargv)[i] = g_new (wchar_t, len + need_dblquotes*2 + 1);
- p = wargv[i];
-
- if (need_dblquotes)
- *q++ = '"';
-
- while (*p)
- {
- if (*p == '"')
- *q++ = '\\';
- else if (*p == '\\')
- {
- wchar_t *pp = p;
- while (*pp && *pp == '\\')
- pp++;
- if (*pp == '"')
- *q++ = '\\';
- }
- *q++ = *p;
- p++;
- }
-
- if (need_dblquotes)
- *q++ = '"';
- *q++ = '\0';
- }
- (*new_wargv)[argc] = NULL;
-
- return argc;
-}
-
-#ifndef HELPER_CONSOLE
-int _stdcall
-WinMain (struct HINSTANCE__ *hInstance,
- struct HINSTANCE__ *hPrevInstance,
- char *lpszCmdLine,
- int nCmdShow)
-#else
-int
-main (int ignored_argc, char **ignored_argv)
-#endif
-{
- int child_err_report_fd = -1;
- int helper_sync_fd = -1;
- int i;
- int fd;
- int mode;
- gintptr handle;
- int saved_errno;
- gintptr no_error = CHILD_NO_ERROR;
- gint argv_zero_offset = ARG_PROGRAM;
- wchar_t **new_wargv;
- int argc;
- wchar_t **wargv, **wenvp;
- _startupinfo si = { 0 };
- char c;
-
- g_assert (__argc >= ARG_COUNT);
-
- /* Fetch the wide-char argument vector */
- __wgetmainargs (&argc, &wargv, &wenvp, 0, &si);
-
- /* We still have the system codepage args in __argv. We can look
- * at the first args in which gspawn-win32.c passes us flags and
- * fd numbers in __argv, as we know those are just ASCII anyway.
- */
- g_assert (argc == __argc);
-
- /* argv[ARG_CHILD_ERR_REPORT] is the file descriptor number onto
- * which write error messages.
- */
- child_err_report_fd = atoi (__argv[ARG_CHILD_ERR_REPORT]);
-
- /* Hack to implement G_SPAWN_FILE_AND_ARGV_ZERO. If
- * argv[ARG_CHILD_ERR_REPORT] is suffixed with a '#' it means we get
- * the program to run and its argv[0] separately.
- */
- if (__argv[ARG_CHILD_ERR_REPORT][strlen (__argv[ARG_CHILD_ERR_REPORT]) - 1] == '#')
- argv_zero_offset++;
-
- /* argv[ARG_HELPER_SYNC] is the file descriptor number we read a
- * byte that tells us it is OK to exit. We have to wait until the
- * parent allows us to exit, so that the parent has had time to
- * duplicate the process handle we sent it. Duplicating a handle
- * from another process works only if that other process exists.
- */
- helper_sync_fd = atoi (__argv[ARG_HELPER_SYNC]);
-
- /* argv[ARG_STDIN..ARG_STDERR] are the file descriptor numbers that
- * should be dup2'd to 0, 1 and 2. '-' if the corresponding fd
- * should be left alone, and 'z' if it should be connected to the
- * bit bucket NUL:.
- */
- if (__argv[ARG_STDIN][0] == '-')
- ; /* Nothing */
- else if (__argv[ARG_STDIN][0] == 'z')
- {
- fd = open ("NUL:", O_RDONLY);
- if (fd != 0)
- {
- dup2 (fd, 0);
- close (fd);
- }
- }
- else
- {
- fd = atoi (__argv[ARG_STDIN]);
- if (fd != 0)
- {
- dup2 (fd, 0);
- close (fd);
- }
- }
-
- if (__argv[ARG_STDOUT][0] == '-')
- ; /* Nothing */
- else if (__argv[ARG_STDOUT][0] == 'z')
- {
- fd = open ("NUL:", O_WRONLY);
- if (fd != 1)
- {
- dup2 (fd, 1);
- close (fd);
- }
- }
- else
- {
- fd = atoi (__argv[ARG_STDOUT]);
- if (fd != 1)
- {
- dup2 (fd, 1);
- close (fd);
- }
- }
-
- if (__argv[ARG_STDERR][0] == '-')
- ; /* Nothing */
- else if (__argv[ARG_STDERR][0] == 'z')
- {
- fd = open ("NUL:", O_WRONLY);
- if (fd != 2)
- {
- dup2 (fd, 2);
- close (fd);
- }
- }
- else
- {
- fd = atoi (__argv[ARG_STDERR]);
- if (fd != 2)
- {
- dup2 (fd, 2);
- close (fd);
- }
- }
-
- /* __argv[ARG_WORKING_DIRECTORY] is the directory in which to run the
- * process. If "-", don't change directory.
- */
- if (__argv[ARG_WORKING_DIRECTORY][0] == '-' &&
- __argv[ARG_WORKING_DIRECTORY][1] == 0)
- ; /* Nothing */
- else if (_wchdir (wargv[ARG_WORKING_DIRECTORY]) < 0)
- write_err_and_exit (child_err_report_fd, CHILD_CHDIR_FAILED);
-
- /* __argv[ARG_CLOSE_DESCRIPTORS] is "y" if file descriptors from 3
- * upwards should be closed
- */
- if (__argv[ARG_CLOSE_DESCRIPTORS][0] == 'y')
- for (i = 3; i < 1000; i++) /* FIXME real limit? */
- if (i != child_err_report_fd && i != helper_sync_fd)
- close (i);
-
- /* We don't want our child to inherit the error report and
- * helper sync fds.
- */
- child_err_report_fd = dup_noninherited (child_err_report_fd, _O_WRONLY);
- helper_sync_fd = dup_noninherited (helper_sync_fd, _O_RDONLY);
-
- /* __argv[ARG_WAIT] is "w" to wait for the program to exit */
- if (__argv[ARG_WAIT][0] == 'w')
- mode = P_WAIT;
- else
- mode = P_NOWAIT;
-
- /* __argv[ARG_USE_PATH] is "y" to use PATH, otherwise not */
-
- /* __argv[ARG_PROGRAM] is executable file to run,
- * __argv[argv_zero_offset]... is its argv. argv_zero_offset equals
- * ARG_PROGRAM unless G_SPAWN_FILE_AND_ARGV_ZERO was used, in which
- * case we have a separate executable name and argv[0].
- */
-
- /* For the program name passed to spawnv(), don't use the quoted
- * version.
- */
- protect_wargv (wargv + argv_zero_offset, &new_wargv);
-
- if (__argv[ARG_USE_PATH][0] == 'y')
- handle = _wspawnvp (mode, wargv[ARG_PROGRAM], (const wchar_t **) new_wargv);
- else
- handle = _wspawnv (mode, wargv[ARG_PROGRAM], (const wchar_t **) new_wargv);
-
- saved_errno = errno;
-
- if (handle == -1 && saved_errno != 0)
- write_err_and_exit (child_err_report_fd, CHILD_SPAWN_FAILED);
-
- write (child_err_report_fd, &no_error, sizeof (no_error));
- write (child_err_report_fd, &handle, sizeof (handle));
-
- read (helper_sync_fd, &c, 1);
-
- return 0;
-}
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