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authorSimo Sorce <idra@samba.org>2008-11-25 16:42:38 -0500
committerSimo Sorce <idra@samba.org>2008-11-25 16:44:17 -0500
commitd4b9a588bade582ba2968f270101032a11981e17 (patch)
tree41e817fbc39d3b5b0310b5f0d8670ca91ad37783 /server/util/become_daemon.c
parentf85ae5fce84ad7bdc515c1ec324b9c56cb1a39b2 (diff)
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Move all server helpers in util/server.c
Diffstat (limited to 'server/util/become_daemon.c')
-rw-r--r--server/util/become_daemon.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/server/util/become_daemon.c b/server/util/become_daemon.c
deleted file mode 100644
index 4a940eaa..00000000
--- a/server/util/become_daemon.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- Samba utility functions
- Copyright (C) Andrew Tridgell 1992-1998
- Copyright (C) Jeremy Allison 2001-2002
- Copyright (C) Simo Sorce 2001
- Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
- Copyright (C) James J Myers 2003
-
- 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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include "util/util.h"
-
-
-/*******************************************************************
- Close the low 3 fd's and open dev/null in their place.
-********************************************************************/
-static void close_low_fds(bool stderr_too)
-{
-#ifndef VALGRIND
- int fd;
- int i;
-
- close(0);
- close(1);
-
- if (stderr_too)
- close(2);
-
- /* try and use up these file descriptors, so silly
- library routines writing to stdout etc won't cause havoc */
- for (i=0;i<3;i++) {
- if (i == 2 && !stderr_too)
- continue;
-
- fd = open("/dev/null",O_RDWR,0);
- if (fd < 0)
- fd = open("/dev/null",O_WRONLY,0);
- if (fd < 0) {
- DEBUG(0,("Can't open /dev/null\n"));
- return;
- }
- if (fd != i) {
- DEBUG(0,("Didn't get file descriptor %d\n",i));
- return;
- }
- }
-#endif
-}
-
-/**
- Become a daemon, discarding the controlling terminal.
-**/
-
-void become_daemon(bool Fork)
-{
- if (Fork) {
- if (fork()) {
- _exit(0);
- }
- }
-
- /* detach from the terminal */
-#ifdef HAVE_SETSID
- setsid();
-#elif defined(TIOCNOTTY)
- {
- int i = open("/dev/tty", O_RDWR, 0);
- if (i != -1) {
- ioctl(i, (int) TIOCNOTTY, (char *)0);
- close(i);
- }
- }
-#endif /* HAVE_SETSID */
-
- /* Close fd's 0,1,2. Needed if started by rsh */
- close_low_fds(false); /* Don't close stderr, let the debug system
- attach it to the logfile */
-}
-
-int pidfile(const char *path, const char *name)
-{
- char pid_str[32];
- pid_t pid;
- char *file;
- int fd;
- int ret;
-
- asprintf(&file, "%s/%s.pid", path, name);
-
- fd = open(file, O_RDONLY, 0644);
- if (fd != -1) {
-
- pid_str[sizeof(pid_str) -1] = '\0';
- ret = read(fd, pid_str, sizeof(pid_str) -1);
- if (ret > 0) {
- /* let's check the pid */
-
- pid = (pid_t)atoi(pid_str);
- if (pid != 0) {
- errno = 0;
- ret = kill(pid, 0);
- if (ret != 0 && errno != ESRCH) {
- close(fd);
- free(file);
- return EEXIST;
- }
- }
- }
-
- /* notihng in the file or no process */
- close(fd);
- unlink(file);
-
- } else {
- if (errno != ENOENT) {
- free(file);
- return EIO;
- }
- }
-
- fd = open(file, O_CREAT | O_WRONLY | O_EXCL, 0644);
- if (fd == -1) {
- free(file);
- return EIO;
- }
- free(file);
-
- memset(pid_str, 0, sizeof(pid_str));
- snprintf(pid_str, sizeof(pid_str) -1, "%u\n", (unsigned int) getpid());
-
- ret = write(fd, pid_str, strlen(pid_str));
- if (ret != strlen(pid_str)) {
- close(fd);
- return EIO;
- }
-
- close(fd);
-
- return 0;
-}
-