From e5c24dfd010732ab6b80a96ad2a5414499c496c0 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 29 Mar 2001 21:58:33 +0000
Subject: [PATCH] Use daemon() to spawn syslogd and klogd daemons.  -Erik

---
 klogd.c            | 21 ++++-----------------
 sysklogd/klogd.c   | 21 ++++-----------------
 sysklogd/syslogd.c | 22 ++++------------------
 syslogd.c          | 22 ++++------------------
 4 files changed, 16 insertions(+), 70 deletions(-)

diff --git a/klogd.c b/klogd.c
index d5e330bdf..95d4eea65 100644
--- a/klogd.c
+++ b/klogd.c
@@ -124,18 +124,10 @@ static void doKlogd (void)
 	}
 }
 
-static void daemon_init (char **argv, char *dz, void fn (void))
-{
-	setsid(); /* start a new session? */
-	strncpy(argv[0], dz, strlen(argv[0]));
-	fn();
-	exit(0);
-}
-
 extern int klogd_main(int argc, char **argv)
 {
 	/* no options, no getopt */
-	int opt, pid;
+	int opt;
 	int doFork = TRUE;
 
 	/* do normal option parsing */
@@ -150,15 +142,10 @@ extern int klogd_main(int argc, char **argv)
 	}
 
 	if (doFork == TRUE) {
-		pid = fork();
-		if (pid < 0)
-			exit(pid);
-		else if (pid == 0) {
-			daemon_init (argv, "klogd", doKlogd);
-		}
-	} else {
-		doKlogd();
+		if (daemon(0, 1) < 0)
+			perror_msg_and_die("daemon");
 	}
+	doKlogd();
 	
 	return EXIT_SUCCESS;
 }
diff --git a/sysklogd/klogd.c b/sysklogd/klogd.c
index d5e330bdf..95d4eea65 100644
--- a/sysklogd/klogd.c
+++ b/sysklogd/klogd.c
@@ -124,18 +124,10 @@ static void doKlogd (void)
 	}
 }
 
-static void daemon_init (char **argv, char *dz, void fn (void))
-{
-	setsid(); /* start a new session? */
-	strncpy(argv[0], dz, strlen(argv[0]));
-	fn();
-	exit(0);
-}
-
 extern int klogd_main(int argc, char **argv)
 {
 	/* no options, no getopt */
-	int opt, pid;
+	int opt;
 	int doFork = TRUE;
 
 	/* do normal option parsing */
@@ -150,15 +142,10 @@ extern int klogd_main(int argc, char **argv)
 	}
 
 	if (doFork == TRUE) {
-		pid = fork();
-		if (pid < 0)
-			exit(pid);
-		else if (pid == 0) {
-			daemon_init (argv, "klogd", doKlogd);
-		}
-	} else {
-		doKlogd();
+		if (daemon(0, 1) < 0)
+			perror_msg_and_die("daemon");
 	}
+	doKlogd();
 	
 	return EXIT_SUCCESS;
 }
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index cc42c2942..e83ce48ae 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -562,18 +562,9 @@ static void doSyslogd (void)
 	} /* for main loop */
 }
 
-static void daemon_init (char **argv, char *dz, void fn (void))
-{
-	setsid();
-	chdir ("/");
-	strncpy(argv[0], dz, strlen(argv[0]));
-	fn();
-	exit(0);
-}
-
 extern int syslogd_main(int argc, char **argv)
 {
-	int opt, pid;
+	int opt;
 	int doFork = TRUE;
 
 	char *p;
@@ -635,15 +626,10 @@ extern int syslogd_main(int argc, char **argv)
 #endif
 
 	if (doFork == TRUE) {
-		pid = fork();
-		if (pid < 0)
-			exit(pid);
-		else if (pid == 0) {
-			daemon_init (argv, "syslogd", doSyslogd);
-		}
-	} else {
-		doSyslogd();
+		if (daemon(0, 1) < 0)
+			perror_msg_and_die("daemon");
 	}
+	doSyslogd();
 
 	return EXIT_SUCCESS;
 }
diff --git a/syslogd.c b/syslogd.c
index cc42c2942..e83ce48ae 100644
--- a/syslogd.c
+++ b/syslogd.c
@@ -562,18 +562,9 @@ static void doSyslogd (void)
 	} /* for main loop */
 }
 
-static void daemon_init (char **argv, char *dz, void fn (void))
-{
-	setsid();
-	chdir ("/");
-	strncpy(argv[0], dz, strlen(argv[0]));
-	fn();
-	exit(0);
-}
-
 extern int syslogd_main(int argc, char **argv)
 {
-	int opt, pid;
+	int opt;
 	int doFork = TRUE;
 
 	char *p;
@@ -635,15 +626,10 @@ extern int syslogd_main(int argc, char **argv)
 #endif
 
 	if (doFork == TRUE) {
-		pid = fork();
-		if (pid < 0)
-			exit(pid);
-		else if (pid == 0) {
-			daemon_init (argv, "syslogd", doSyslogd);
-		}
-	} else {
-		doSyslogd();
+		if (daemon(0, 1) < 0)
+			perror_msg_and_die("daemon");
 	}
+	doSyslogd();
 
 	return EXIT_SUCCESS;
 }