libglusterfs: Bring in os_daemon_* routines to replace modified FreeBSD code

Change-Id: I41f4635b1b75adb6d22e2e325b99941f8d7a0b42
BUG: 3206
Reviewed-on: http://review.gluster.com/100
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amar@gluster.com>

5 files changed, 87 insertions, 109 deletions

diff --git a/contrib/apple/daemon.c b/contrib/apple/daemon.c
deleted file mode 100644
index 060f6a4307b..00000000000
--- a/contrib/apple/daemon.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
-   Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
-
-   Based on http://www.opensource.apple.com/source/Libc/Libc-583/gen/FreeBSD/daemon.c
- */
-
-/*-
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 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.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <unistd.h>
-
-int
-os_daemon_return(nochdir, noclose)
-	int nochdir, noclose;
-{
-	struct sigaction osa, sa;
-	int fd;
-	pid_t newgrp;
-	int oerrno;
-	int osa_ok;
-	int ret;
-
-	/* A SIGHUP may be thrown when the parent exits below. */
-	sigemptyset(&sa.sa_mask);
-	sa.sa_handler = SIG_IGN;
-	sa.sa_flags = 0;
-	osa_ok = sigaction(SIGHUP, &sa, &osa);
-
-	ret = fork();
-	if (ret)
-		return ret;
-
-	newgrp = setsid();
-	oerrno = errno;
-	if (osa_ok != -1)
-		sigaction(SIGHUP, &osa, NULL);
-
-	if (newgrp == -1) {
-		errno = oerrno;
-		return (-1);
-	}
-
-	if (!nochdir)
-		(void)chdir("/");
-
-        /* Was using '_PATH_DEVNULL' earlier. As it was not defined in solaris,
-           changed to hardcoded path (and removed '#include <paths.h>' too) */
-	if (!noclose && (fd = open("/dev/null", O_RDWR, 0)) != -1) {
-		(void)dup2(fd, STDIN_FILENO);
-		(void)dup2(fd, STDOUT_FILENO);
-		(void)dup2(fd, STDERR_FILENO);
-		if (fd > 2)
-			(void)close(fd);
-	}
-	return (0);
-}
-
-int
-os_daemon(int nochdir, int noclose)
-{
-	int ret;
-
-	ret = os_daemon_return(nochdir, noclose);
-	if (ret <= 0)
-		return ret;
-
-	_exit(0);
-}
diff --git a/glusterfsd/src/Makefile.am b/glusterfsd/src/Makefile.am
index 2056ca89806..17d7a4a8139 100644
--- a/glusterfsd/src/Makefile.am
+++ b/glusterfsd/src/Makefile.am
@@ -1,6 +1,6 @@
 sbin_PROGRAMS = glusterfsd
 
-glusterfsd_SOURCES = glusterfsd.c glusterfsd-mgmt.c $(CONTRIBDIR)/apple/daemon.c
+glusterfsd_SOURCES = glusterfsd.c glusterfsd-mgmt.c
 glusterfsd_LDADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \
 	$(top_builddir)/rpc/rpc-lib/src/libgfrpc.la \
 	$(top_builddir)/rpc/xdr/src/libgfxdr.la \
@@ -11,7 +11,7 @@ noinst_HEADERS = glusterfsd.h glusterfsd-mem-types.h
 AM_CFLAGS = -fPIC -Wall -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D$(GF_HOST_OS)\
 	-I$(top_srcdir)/libglusterfs/src -DDATADIR=\"$(localstatedir)\" \
 	-DCONFDIR=\"$(sysconfdir)/glusterfs\" $(GF_GLUSTERFS_CFLAGS) \
-	-I$(top_srcdir)/rpc/rpc-lib/src -I$(top_srcdir)/rpc/xdr/src -I$(CONTRIBDIR)/apple
+	-I$(top_srcdir)/rpc/rpc-lib/src -I$(top_srcdir)/rpc/xdr/src
 
 CLEANFILES = 
 
diff --git a/libglusterfs/src/Makefile.am b/libglusterfs/src/Makefile.am
index 3405ee5c319..0f932cb303e 100644
--- a/libglusterfs/src/Makefile.am
+++ b/libglusterfs/src/Makefile.am
@@ -6,11 +6,11 @@ libglusterfs_la_LIBADD = @LEXLIB@
 
 lib_LTLIBRARIES = libglusterfs.la
 
-libglusterfs_la_SOURCES = dict.c graph.lex.c y.tab.c xlator.c logging.c  hashfn.c defaults.c common-utils.c timer.c inode.c call-stub.c compat.c fd.c compat-errno.c event.c mem-pool.c gf-dirent.c syscall.c iobuf.c globals.c statedump.c stack.c checksum.c $(CONTRIBDIR)/md5/md5.c $(CONTRIBDIR)/rbtree/rb.c rbthash.c latency.c graph.c $(CONTRIBDIR)/uuid/clear.c $(CONTRIBDIR)/uuid/copy.c $(CONTRIBDIR)/uuid/gen_uuid.c $(CONTRIBDIR)/uuid/pack.c $(CONTRIBDIR)/uuid/parse.c $(CONTRIBDIR)/uuid/unparse.c $(CONTRIBDIR)/uuid/uuid_time.c $(CONTRIBDIR)/uuid/compare.c $(CONTRIBDIR)/uuid/isnull.c $(CONTRIBDIR)/uuid/unpack.c syncop.c graph-print.c trie.c run.c
+libglusterfs_la_SOURCES = dict.c graph.lex.c y.tab.c xlator.c logging.c  hashfn.c defaults.c common-utils.c timer.c inode.c call-stub.c compat.c fd.c compat-errno.c event.c mem-pool.c gf-dirent.c syscall.c iobuf.c globals.c statedump.c stack.c checksum.c daemon.c $(CONTRIBDIR)/md5/md5.c $(CONTRIBDIR)/rbtree/rb.c rbthash.c latency.c graph.c $(CONTRIBDIR)/uuid/clear.c $(CONTRIBDIR)/uuid/copy.c $(CONTRIBDIR)/uuid/gen_uuid.c $(CONTRIBDIR)/uuid/pack.c $(CONTRIBDIR)/uuid/parse.c $(CONTRIBDIR)/uuid/unparse.c $(CONTRIBDIR)/uuid/uuid_time.c $(CONTRIBDIR)/uuid/compare.c $(CONTRIBDIR)/uuid/isnull.c $(CONTRIBDIR)/uuid/unpack.c syncop.c graph-print.c trie.c run.c
 
-noinst_HEADERS = common-utils.h defaults.h dict.h glusterfs.h hashfn.h logging.h  xlator.h  stack.h timer.h list.h inode.h call-stub.h compat.h fd.h revision.h compat-errno.h event.h mem-pool.h byte-order.h gf-dirent.h locking.h syscall.h iobuf.h globals.h statedump.h checksum.h $(CONTRIBDIR)/md5/md5.h $(CONTRIBDIR)/rbtree/rb.h rbthash.h iatt.h latency.h mem-types.h $(CONTRIBDIR)/uuid/uuidd.h $(CONTRIBDIR)/uuid/uuid.h $(CONTRIBDIR)/uuid/uuidP.h $(CONTRIBDIR)/uuid/uuid_types.h syncop.h graph-utils.h trie.h run.h
+noinst_HEADERS = common-utils.h defaults.h dict.h glusterfs.h hashfn.h logging.h  xlator.h  stack.h timer.h list.h inode.h call-stub.h compat.h fd.h revision.h compat-errno.h event.h mem-pool.h byte-order.h gf-dirent.h locking.h syscall.h iobuf.h globals.h statedump.h checksum.h daemon.h $(CONTRIBDIR)/md5/md5.h $(CONTRIBDIR)/rbtree/rb.h rbthash.h iatt.h latency.h mem-types.h $(CONTRIBDIR)/uuid/uuidd.h $(CONTRIBDIR)/uuid/uuid.h $(CONTRIBDIR)/uuid/uuidP.h $(CONTRIBDIR)/uuid/uuid_types.h syncop.h graph-utils.h trie.h run.h
 
-EXTRA_DIST = graph.l graph.y $(CONTRIBDIR)/apple/daemon.c $(CONTRIBDIR)/apple/daemon.h
+EXTRA_DIST = graph.l graph.y
 
 graph.lex.c: graph.l y.tab.h
 	$(LEX) -t $(srcdir)/graph.l > $@
diff --git a/libglusterfs/src/daemon.c b/libglusterfs/src/daemon.c
new file mode 100644
index 00000000000..a6476ec2e95
--- /dev/null
+++ b/libglusterfs/src/daemon.c
@@ -0,0 +1,68 @@
+/*
+  Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Affero General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS 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
+  Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include "daemon.h"
+
+int
+os_daemon_return (int nochdir, int noclose)
+{
+	pid_t   pid  = -1;
+	int     ret  = -1;
+        FILE    *ptr = NULL;
+
+
+	ret = fork();
+	if (ret)
+		return ret;
+
+	pid = setsid();
+
+	if (pid == -1) {
+                ret = -1;
+		goto out;
+        }
+
+	if (!nochdir)
+		ret = chdir("/");
+
+        if (!noclose) {
+                ptr = freopen (DEVNULLPATH, "r", stdin);
+                ptr = freopen (DEVNULLPATH, "w", stdout);
+                ptr = freopen (DEVNULLPATH, "w", stderr);
+	}
+
+        ret = 0;
+out:
+	return ret;
+}
+
+int
+os_daemon (int nochdir, int noclose)
+{
+	int ret = -1;
+
+	ret = os_daemon_return (nochdir, noclose);
+	if (ret <= 0)
+		return ret;
+
+	_exit (0);
+}
diff --git a/contrib/apple/daemon.h b/libglusterfs/src/daemon.h
index aa88d9baa56..c1ecd3c3770 100644
--- a/contrib/apple/daemon.h
+++ b/libglusterfs/src/daemon.h
@@ -3,19 +3,30 @@
    This file is part of GlusterFS.
 
    GlusterFS is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published
+   it under the terms of the GNU Affero General Public License as published
    by the Free Software Foundation; either version 3 of the License,
    or (at your option) any later version.
 
    GlusterFS 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.
+   Affero General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
+   You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see
    <http://www.gnu.org/licenses/>.
 */
 
+#ifndef _DAEMON_H
+#define _DAEMON_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#define DEVNULLPATH "/dev/null"
+
 int os_daemon_return(int nochdir, int noclose);
 int os_daemon(int nochdir, int noclose);
+#endif /*_DAEMON_H */