diff options
Diffstat (limited to 'misc/daemon.c')
| -rw-r--r-- | misc/daemon.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/misc/daemon.c b/misc/daemon.c deleted file mode 100644 index 9d186b24bd..0000000000 --- a/misc/daemon.c +++ /dev/null @@ -1,93 +0,0 @@ -/*- - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <errno.h> -#include <fcntl.h> -#include <paths.h> -#include <unistd.h> -#include <sys/stat.h> - -#include <device-nrs.h> -#include <not-cancel.h> - -int -daemon (int nochdir, int noclose) -{ - int fd; - - switch (__fork()) { - case -1: - return (-1); - case 0: - break; - default: - _exit(0); - } - - if (__setsid() == -1) - return (-1); - - if (!nochdir) - (void)__chdir("/"); - - if (!noclose) { - struct stat64 st; - - if ((fd = open_not_cancel(_PATH_DEVNULL, O_RDWR, 0)) != -1 - && (__builtin_expect (__fxstat64 (_STAT_VER, fd, &st), 0) - == 0)) { - if (__builtin_expect (S_ISCHR (st.st_mode), 1) != 0 -#if defined DEV_NULL_MAJOR && defined DEV_NULL_MINOR - && (st.st_rdev - == makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR)) -#endif - ) { - (void)__dup2(fd, STDIN_FILENO); - (void)__dup2(fd, STDOUT_FILENO); - (void)__dup2(fd, STDERR_FILENO); - if (fd > 2) - (void)__close (fd); - } else { - /* We must set an errno value since no - function call actually failed. */ - close_not_cancel_no_status (fd); - __set_errno (ENODEV); - return -1; - } - } else { - close_not_cancel_no_status (fd); - return -1; - } - } - return (0); -} |