diff -Nur opentracker-20160728.orig/opentracker.c opentracker-20160728/opentracker.c

--- opentracker-20160728.orig/opentracker.c	2014-10-06 16:32:28.000000000 -0600

+++ opentracker-20160728/opentracker.c	2016-07-28 14:35:00.232095930 -0600

@@ -103,7 +103,7 @@

 }

 static void usage( char *name ) {

-  fprintf( stderr, "Usage: %s [-i ip] [-p port] [-P port] [-r redirect] [-d dir] [-u user] [-A ip] [-f config] [-s livesyncport]"

+  fprintf( stderr, "Usage: %s [-i ip] [-p port] [-P port] [-r redirect] [-d dir] [-u user] [-A ip] [-f config] [-s livesyncport] [-m run as daemon]"

 #ifdef WANT_ACCESSLIST_BLACK

   " [-b blacklistfile]"

 #elif defined ( WANT_ACCESSLIST_WHITE )

@@ -122,8 +122,9 @@

   HELPLINE("-P port","specify udp port to bind to (default: 6969, you may specify more than one)");

   HELPLINE("-r redirecturl","specify url where / should be redirected to (default none)");

   HELPLINE("-d dir","specify directory to try to chroot to (default: \".\")");

-  HELPLINE("-u user","specify user under whose priviliges opentracker should run (default: \"nobody\")");

+  HELPLINE("-u user","specify user under whose priviliges opentracker should run (default: \"opentracker\")");

   HELPLINE("-A ip","bless an ip address as admin address (e.g. to allow syncs from this address)");

+  HELPLINE("-m ","run as deamon");

 #ifdef WANT_ACCESSLIST_BLACK

   HELPLINE("-b file","specify blacklist file.");

 #elif defined( WANT_ACCESSLIST_WHITE )

@@ -552,7 +553,7 @@

 int main( int argc, char **argv ) {

   ot_ip6 serverip, tmpip;

-  int bound = 0, scanon = 1;

+  int bound = 0, scanon = 1, pid = 0;

   uint16_t tmpport;

   char * statefile = 0;

@@ -569,7 +570,7 @@

 #endif

   while( scanon ) {

-    switch( getopt( argc, argv, ":i:p:A:P:d:u:r:s:f:l:v"

+    switch( getopt( argc, argv, ":i:p:A:P:d:u:r:s:f:l:v:m"

 #ifdef WANT_ACCESSLIST_BLACK

 "b:"

 #elif defined( WANT_ACCESSLIST_WHITE )

@@ -605,6 +606,7 @@

         accesslist_blessip( tmpip, 0xffff ); /* Allow everything for now */

         break;

       case 'f': bound += parse_configfile( optarg ); break;

+      case 'm': pid = 1; break;

       case 'h': help( argv[0] ); exit( 0 );

       case 'v': {

         char buffer[8192];

@@ -617,6 +619,7 @@

     }

   }

+  bound += parse_configfile( "INPUTCONFFILEHERE" );

   /* Bind to our default tcp/udp ports */

   if( !bound) {

     ot_try_bind( serverip, 6969, FLAG_TCP );

@@ -628,9 +631,21 @@

   setlogmask(LOG_UPTO(LOG_INFO));

 #endif

-  if( drop_privileges( g_serveruser ? g_serveruser : "nobody", g_serverdir ) == -1 )

+  if( drop_privileges( g_serveruser ? g_serveruser : "opentracker", g_serverdir ) == -1 )

     panic( "drop_privileges failed, exiting. Last error");

+  if (pid) {

+    pid = fork();

+       if (pid == -1) {

+      perror("fork");

+      exit(EXIT_FAILURE);

+       } else if (pid != 0) {

+      exit(EXIT_SUCCESS);

+       }

+       freopen("/dev/null", "a+", stdout);

+       freopen("/dev/null", "a+", stderr);

+  }

+

   g_now_seconds = time( NULL );

   /* Create our self pipe which allows us to interrupt mainloops