+/* vi: set sw=4 ts=4: */
/*
- * Rexec program for system have fork() as vfork() with foregound option
+ * Rexec program for system have fork() as vfork() with foreground option
*
* Copyright (C) Vladimir N. Oleynik <dzo@simtreas.ru>
* Copyright (C) 2003 Russ Dill <Russ.Dill@asu.edu>
*
- * daemon() portion taken from uclibc:
+ * daemon() portion taken from uClibc:
*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Modified for uClibc by Erik Andersen <andersee@debian.org>
*
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
#include <paths.h>
#include "libbb.h"
-
-#if defined(__uClinux__)
+#ifdef BB_NOMMU
void vfork_daemon_rexec(int nochdir, int noclose,
int argc, char **argv, char *foreground_opt)
{
int fd;
char **vfork_args;
int a = 0;
-
+
setsid();
-
+
if (!nochdir)
- chdir("/");
+ xchdir("/");
- if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
+ if (!noclose && (fd = open(bb_dev_null, O_RDWR, 0)) != -1) {
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
- if (fd > 2)
- close(fd);
+ while (fd > 2)
+ close(fd--);
}
- vfork_args = xcalloc(sizeof(char *), argc + 3);
- vfork_args[a++] = "/bin/busybox";
- while(*argv) {
- vfork_args[a++] = *argv;
- argv++;
+ vfork_args = xzalloc(sizeof(char *) * (argc + 3));
+ vfork_args[a++] = CONFIG_BUSYBOX_EXEC_PATH;
+ while (*argv) {
+ vfork_args[a++] = *argv;
+ argv++;
}
vfork_args[a] = foreground_opt;
switch (vfork()) {
bb_perror_msg_and_die("vfork");
default: /* parent */
exit(0);
- }
+ }
}
-#endif /* uClinux */
+#endif /* BB_NOMMU */