mc/gnome/gutil.c
Miguel de Icaza 85f17a4dc6 Lots of changes:
- SFS-based file systems now work on GNOME edition, I was
	  not waiting for child process to finish decompressing.

	- VFS code cleanup.  I am going to eventually get rid of all
	  the macro-mania that has creeped into the vfs layer.

Miguel
1999-01-11 00:48:23 +00:00

166 lines
4.0 KiB
C

/* Various utilities - Unix variants
Copyright (C) 1998 the Free Software Foundation.
Written 1998 by:
Miguel de Icaza
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <signal.h> /* my_system */
#include <limits.h> /* INT_MAX */
#include <sys/time.h> /* select: timeout */
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdarg.h>
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h> /* my_system */
#endif
#include <errno.h> /* my_system */
#include <pwd.h>
#include <grp.h>
#include <string.h>
#include <ctype.h>
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
#include <gnome.h>
#include <X11/Xlib.h>
#include <gdk/gdkprivate.h>
#include "util.h"
int my_system_get_child_pid (int flags, const char *shell, const char *command, pid_t *pid)
{
struct sigaction ignore, save_intr, save_quit, save_stop;
int status = 0, i;
ignore.sa_handler = SIG_IGN;
sigemptyset (&ignore.sa_mask);
ignore.sa_flags = 0;
sigaction (SIGINT, &ignore, &save_intr);
sigaction (SIGQUIT, &ignore, &save_quit);
if ((*pid = fork ()) < 0){
fprintf (stderr, "\n\nfork () = -1\n");
return -1;
}
if (*pid == 0){
const int top = max_open_files ();
sigaction (SIGINT, &save_intr, NULL);
sigaction (SIGQUIT, &save_quit, NULL);
for (i = 3; i < top; i++)
close (i);
if (!(flags & EXECUTE_WAIT))
*pid = fork ();
if (*pid == 0){
if (flags & EXECUTE_AS_SHELL)
execl (shell, shell, "-c", command, (char *) 0);
else
execlp (shell, shell, command, (char *) 0);
/* See note below for why we use _exit () */
_exit (127); /* Exec error */
} else {
int status;
waitpid (*pid, &status, 0);
if (flags & EXECUTE_TEMPFILE)
unlink (command);
}
/* We need to use _exit instead of exit to avoid
* calling the atexit handlers (specifically the gdk atexit
* handler
*/
_exit (0);
}
if (*pid != 0 && (flags & EXECUTE_WAIT)){
int status;
waitpid (*pid, &status, 0);
}
sigaction (SIGINT, &save_intr, NULL);
sigaction (SIGQUIT, &save_quit, NULL);
sigaction (SIGTSTP, &save_stop, NULL);
return WEXITSTATUS(status);
}
int my_system (int flags, const char *shell, const char *command)
{
pid_t pid;
return my_system_get_child_pid (flags, shell, command, &pid);
}
int
exec_direct (char *path, char *argv [])
{
struct sigaction ignore, save_intr, save_quit, save_stop;
pid_t pid;
int status = 0, i;
ignore.sa_handler = SIG_IGN;
sigemptyset (&ignore.sa_mask);
ignore.sa_flags = 0;
sigaction (SIGINT, &ignore, &save_intr);
sigaction (SIGQUIT, &ignore, &save_quit);
if ((pid = fork ()) < 0){
fprintf (stderr, "\n\nfork () = -1\n");
return -1;
}
if (pid == 0){
sigaction (SIGINT, &save_intr, NULL);
sigaction (SIGQUIT, &save_quit, NULL);
for (i = 3; i < 4096; i++)
close (i);
execvp (path, argv);
_exit (127); /* Exec error */
}
sigaction (SIGINT, &save_intr, NULL);
sigaction (SIGQUIT, &save_quit, NULL);
sigaction (SIGTSTP, &save_stop, NULL);
#ifdef SCO_FLAVOR
waitpid(-1, NULL, WNOHANG);
#endif /* SCO_FLAVOR */
return WEXITSTATUS(status);
}
void
port_shutdown_extra_fds (void)
{
const int top = max_open_files ();
int f;
for (f = 0; f < top; f++)
close (f);
}