From: Sven Eckelmann <sven@narfation.org>
Date: Sun, 1 Dec 2013 14:39:00 +0100
Subject: Allow one to disable forking to background in debug_mode 0

---
 posix/init.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

--- a/posix/init.c
+++ b/posix/init.c
@@ -44,6 +44,7 @@
 #define IOCSETDEV 1
 
 int8_t stop;
+int no_detach = 0;
 
 
 
@@ -159,6 +160,7 @@ void apply_init_args( int argc, char *ar
 		{"purge-timeout",     required_argument,       0, 'q'},
 		{"disable-aggregation",     no_argument,       0, 'x'},
 		{"disable-client-nat",     no_argument,       0, 'z'},
+		{"no-detach",     no_argument,       0, 'D'},
 		{0, 0, 0, 0}
 	};
 
@@ -169,7 +171,7 @@ void apply_init_args( int argc, char *ar
 	if ( strstr( SOURCE_VERSION, "-" ) != NULL )
 		printf( "WARNING: You are using the unstable batman branch. If you are interested in *using* batman get the latest stable release !\n" );
 
-	while ( ( optchar = getopt_long( argc, argv, "a:A:bcd:hHio:g:p:r:s:vV", long_options, &option_index ) ) != -1 ) {
+	while ( ( optchar = getopt_long( argc, argv, "a:A:bcd:hHio:g:p:r:s:vVD", long_options, &option_index ) ) != -1 ) {
 
 		switch ( optchar ) {
 
@@ -381,6 +383,11 @@ void apply_init_args( int argc, char *ar
 				found_args++;
 				break;
 
+			case 'D':
+				no_detach = 1;
+				found_args++;
+				break;
+
 			case 'h':
 			default:
 				usage();
@@ -539,12 +546,14 @@ void apply_init_args( int argc, char *ar
 		/* daemonize */
 		if (debug_level == 0) {
 
-			if (my_daemon() < 0) {
+			if (!no_detach) {
+				if (my_daemon() < 0) {
 
-				printf("Error - can't fork to background: %s\n", strerror(errno));
-				restore_defaults();
-				exit(EXIT_FAILURE);
+					printf("Error - can't fork to background: %s\n", strerror(errno));
+					restore_defaults();
+					exit(EXIT_FAILURE);
 
+				}
 			}
 
 			openlog("batmand", LOG_PID, LOG_DAEMON);