--- /dev/null
+/*-
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ * Copyright (c) 2010
+ * Stewart Smith
+ *
+ * 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.
+ * 3. 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.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/select.h>
+
+#include <ccan/daemon-with-notify/daemon.h>
+
+void sigusr1_handler(int sig);
+
+pid_t parent_pid;
+
+void sigusr1_handler(int sig)
+{
+ if (sig == SIGUSR1)
+ _exit(EXIT_SUCCESS);
+}
+
+int daemon_is_ready(void)
+{
+ kill(parent_pid, SIGUSR1);
+ return 0;
+}
+
+int daemonize(int nochdir, int noclose, int wait_sigusr1)
+{
+ int fd;
+ pid_t child= -1;
+
+ parent_pid= getpid();
+ signal(SIGUSR1, sigusr1_handler);
+
+ child= fork();
+
+ switch (child)
+ {
+ case -1:
+ return (-1);
+ case 0:
+ break;
+ default:
+ if (wait_sigusr1)
+ {
+ /* parent */
+ int exit_code= -1;
+ int status;
+ while (waitpid(child, &status, 0) != child);
+ if (WIFEXITED(status))
+ {
+ exit_code= WEXITSTATUS(status);
+ }
+ if (WIFSIGNALED(status))
+ {
+ exit_code= -1;
+ }
+ _exit(exit_code);
+ }
+ else
+ {
+ _exit(EXIT_SUCCESS);
+ }
+ }
+
+ /* child */
+ if (setsid() == -1)
+ return (-1);
+
+ if (nochdir == 0) {
+ if(chdir("/") != 0) {
+ perror("chdir");
+ return (-1);
+ }
+ }
+
+ if (noclose == 0 && (fd = open("/dev/null", O_RDWR, 0)) != -1) {
+ if(dup2(fd, STDIN_FILENO) < 0) {
+ perror("dup2 stdin");
+ return (-1);
+ }
+ if(dup2(fd, STDOUT_FILENO) < 0) {
+ perror("dup2 stdout");
+ return (-1);
+ }
+ if(dup2(fd, STDERR_FILENO) < 0) {
+ perror("dup2 stderr");
+ return (-1);
+ }
+
+ if (fd > STDERR_FILENO) {
+ if(close(fd) < 0) {
+ perror("close");
+ return (-1);
+ }
+ }
+ }
+ return (0);
+}
--- /dev/null
+#ifndef CCAN_DAEMON_WITH_NOTIFY_H
+#define CCAN_DAEMON_WITH_NOTIFY_H
+
+/**
+ * daemonize - turns this process into a daemon
+ *
+ * This routine will fork() us off to become a daemon. It will return
+ * -1 on error and 0 on success.
+ *
+ * It has a few optional behaviours:
+ * @nochdir: if nochdir is set, it won't chdir to /
+ * this means we could hold onto mounts
+ * @noclose: if noclose is set, we won't close stdout, stdin and stderr.
+ * @wait_sigusr1: if wait_sigusr1 is set, the parent will not exit until the
+ * child has either exited OR it receives a SIGUSR1 signal. You can use this
+ * to have the parent only exit when your process has done all the
+ * danegerous initialization that could cause it to fail to start
+ * (e.g. allocating large amounts of memory, replaying REDO logs).
+ * This allows init scripts starting the daemon to easily report
+ * success/failure.
+ */
+int daemonize(int nochdir, int noclose, int wait_sigusr1);
+
+/**
+ * daemon_is_ready - signals parent that it can exit, we started okay
+ *
+ * After a daemonize() call, this function will send a SIGUSR1 to the parent
+ * telling it to exit as we have started up okay.
+ */
+int daemon_is_ready(void);
+
+#endif /* CCAN_DAEMON_WITH_NOTIFY_H */
+++ /dev/null
-/*-
- * Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- * Copyright (c) 2010
- * Stewart Smith
- *
- * 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.
- * 3. 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.
- */
-
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/select.h>
-
-#include <ccan/daemon-with-notify/daemon.h>
-
-void sigusr1_handler(int sig);
-
-pid_t parent_pid;
-
-void sigusr1_handler(int sig)
-{
- if (sig == SIGUSR1)
- _exit(EXIT_SUCCESS);
-}
-
-int daemon_is_ready(void)
-{
- kill(parent_pid, SIGUSR1);
- return 0;
-}
-
-int daemonize(int nochdir, int noclose, int wait_sigusr1)
-{
- int fd;
- pid_t child= -1;
-
- parent_pid= getpid();
- signal(SIGUSR1, sigusr1_handler);
-
- child= fork();
-
- switch (child)
- {
- case -1:
- return (-1);
- case 0:
- break;
- default:
- if (wait_sigusr1)
- {
- /* parent */
- int exit_code= -1;
- int status;
- while (waitpid(child, &status, 0) != child);
- if (WIFEXITED(status))
- {
- exit_code= WEXITSTATUS(status);
- }
- if (WIFSIGNALED(status))
- {
- exit_code= -1;
- }
- _exit(exit_code);
- }
- else
- {
- _exit(EXIT_SUCCESS);
- }
- }
-
- /* child */
- if (setsid() == -1)
- return (-1);
-
- if (nochdir == 0) {
- if(chdir("/") != 0) {
- perror("chdir");
- return (-1);
- }
- }
-
- if (noclose == 0 && (fd = open("/dev/null", O_RDWR, 0)) != -1) {
- if(dup2(fd, STDIN_FILENO) < 0) {
- perror("dup2 stdin");
- return (-1);
- }
- if(dup2(fd, STDOUT_FILENO) < 0) {
- perror("dup2 stdout");
- return (-1);
- }
- if(dup2(fd, STDERR_FILENO) < 0) {
- perror("dup2 stderr");
- return (-1);
- }
-
- if (fd > STDERR_FILENO) {
- if(close(fd) < 0) {
- perror("close");
- return (-1);
- }
- }
- }
- return (0);
-}
+++ /dev/null
-#ifndef CCAN_DAEMON_WITH_NOTIFY_H
-#define CCAN_DAEMON_WITH_NOTIFY_H
-
-/**
- * daemonize - turns this process into a daemon
- *
- * This routine will fork() us off to become a daemon. It will return
- * -1 on error and 0 on success.
- *
- * It has a few optional behaviours:
- * @nochdir: if nochdir is set, it won't chdir to /
- * this means we could hold onto mounts
- * @noclose: if noclose is set, we won't close stdout, stdin and stderr.
- * @wait_sigusr1: if wait_sigusr1 is set, the parent will not exit until the
- * child has either exited OR it receives a SIGUSR1 signal. You can use this
- * to have the parent only exit when your process has done all the
- * danegerous initialization that could cause it to fail to start
- * (e.g. allocating large amounts of memory, replaying REDO logs).
- * This allows init scripts starting the daemon to easily report
- * success/failure.
- */
-int daemonize(int nochdir, int noclose, int wait_sigusr1);
-
-/**
- * daemon_is_ready - signals parent that it can exit, we started okay
- *
- * After a daemonize() call, this function will send a SIGUSR1 to the parent
- * telling it to exit as we have started up okay.
- */
-int daemon_is_ready(void);
-
-#endif /* CCAN_DAEMON_WITH_NOTIFY_H */
projects / ccan / commitdiff