new files to support starting/stopping the server

(This used to be commit 087981009d57006ff80a0cf50891d4473f86f1bb)

3 files changed, 248 insertions, 0 deletions

diff --git a/source3/lib/pidfile.c b/source3/lib/pidfile.c
new file mode 100644
index 0000000000..8dee7421de
--- /dev/null
+++ b/source3/lib/pidfile.c
@@ -0,0 +1,88 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   pidfile handling
+   Copyright (C) Andrew Tridgell 1998
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+
+extern int DEBUGLEVEL;
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK
+#endif
+
+
+/* create a pid file in the lock directory. open it and leave it locked */
+void pidfile_create(char *name)
+{
+	int     fd;
+	char    buf[20];
+	pstring pidFile;
+
+	sprintf(pidFile, "%s/%s.pid", lp_lockdir(), name);
+
+	fd = open(pidFile, O_NONBLOCK | O_CREAT | O_WRONLY | O_TRUNC, 0644);
+	if (fd < 0) {
+		DEBUG(0,("ERROR: can't open %s: %s\n", pidFile, 
+			 strerror(errno)));
+		exit(1);
+	}
+
+	if (fcntl_lock(fd,F_SETLK,0,1,F_WRLCK)==False) {
+		DEBUG(0,("ERROR: %s is already running\n", name));
+		exit(1);
+	}
+
+	sprintf(buf, "%u\n", (unsigned int) getpid());
+	if (write(fd, buf, strlen(buf)) < 0) {
+		DEBUG(0,("ERROR: can't write to %s: %s\n", 
+			 pidFile, strerror(errno)));
+		exit(1);
+	}
+	/* Leave pid file open & locked for the duration... */
+}
+
+
+/* return the pid in a pidfile. return 0 if the process (or pidfile)
+   does not exist */
+int pidfile_pid(char *name)
+{
+	FILE *f;
+	pstring pidFile;
+	unsigned ret;
+
+	sprintf(pidFile, "%s/%s.pid", lp_lockdir(), name);
+
+	f = fopen(pidFile, "r");
+	if (!f) {
+		return 0;
+	}
+
+	if (fscanf(f,"%u", &ret) != 1) {
+		fclose(f);
+		return 0;
+	}
+	fclose(f);
+	
+	if (!process_exists(ret)) return 0;
+
+	return ret;
+}
+
diff --git a/source3/web/diagnose.c b/source3/web/diagnose.c
new file mode 100644
index 0000000000..054de2a631
--- /dev/null
+++ b/source3/web/diagnose.c
@@ -0,0 +1,67 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   diagnosis tools for web admin
+   Copyright (C) Andrew Tridgell 1998
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "smb.h"
+
+
+/* check to see if nmbd is running on localhost by looking for a __SAMBA__
+   response */
+BOOL nmbd_running(void)
+{
+	extern struct in_addr loopback_ip;
+	int fd, count;
+	struct in_addr *ip_list;
+
+	if ((fd = open_socket_in(SOCK_DGRAM, 0, 3,
+				 interpret_addr("127.0.0.1"))) != -1) {
+		if ((ip_list = name_query(fd, "__SAMBA__", 0, 
+					  True, True, loopback_ip,
+					  &count,0)) != NULL) {
+			free(ip_list);
+			close(fd);
+			return True;
+		}
+		close (fd);
+	}
+
+	return False;
+}
+
+
+/* check to see if smbd is running on localhost by trying to open a connection
+   then closing it */
+BOOL smbd_running(void)
+{
+	static struct cli_state cli;
+	extern struct in_addr loopback_ip;
+
+	if (!cli_initialise(&cli))
+		return False;
+
+	if (!cli_connect(&cli, "localhost", &loopback_ip)) {
+		cli_shutdown(&cli);
+		return False;
+	}
+
+	cli_shutdown(&cli);
+	return True;
+}
diff --git a/source3/web/startstop.c b/source3/web/startstop.c
new file mode 100644
index 0000000000..19781cc220
--- /dev/null
+++ b/source3/web/startstop.c
@@ -0,0 +1,93 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   start/stop nmbd and smbd
+   Copyright (C) Andrew Tridgell 1998
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "smb.h"
+
+/* need to wait for daemons to startup */
+#define SLEEP_TIME 3
+
+/* startup smbd */
+void start_smbd(void)
+{
+	pstring binfile;
+
+	if (geteuid() != 0) return;
+
+	if (fork()) {
+		sleep(SLEEP_TIME);
+		return;
+	}
+
+	sprintf(binfile,"%s/smbd", SBINDIR);
+
+	become_daemon();
+
+	execl(binfile, "-D", NULL);
+
+	exit(0);
+}
+
+/* startup nmbd */
+void start_nmbd(void)
+{
+	pstring binfile;
+
+	if (geteuid() != 0) return;
+
+	if (fork()) {
+		sleep(SLEEP_TIME);
+		return;
+	}
+
+	sprintf(binfile,"%s/nmbd", SBINDIR);
+	
+	become_daemon();
+
+	execl(binfile, "-D", NULL);
+
+	exit(0);
+}
+
+
+/* stop smbd */
+void stop_smbd(void)
+{
+	unsigned pid = pidfile_pid("smbd");
+
+	if (geteuid() != 0) return;
+
+	if (pid == 0) return;
+
+	kill(pid, SIGTERM);
+}
+
+/* stop nmbd */
+void stop_nmbd(void)
+{
+	unsigned pid = pidfile_pid("nmbd");
+
+	if (geteuid() != 0) return;
+
+	if (pid == 0) return;
+
+	kill(pid, SIGTERM);
+}