[or-cvs] Add daemon logic

[Nick Mathewson]

Update of /home/or/cvsroot/src/or
In directory moria.mit.edu:/tmp/cvs-serv2453/src/or

Modified Files:
	main.c 
Log Message:
Add daemon logic

Index: main.c
===================================================================
RCS file: /home/or/cvsroot/src/or/main.c,v
retrieving revision 1.43
retrieving revision 1.44
diff -u -d -r1.43 -r1.44
--- main.c	11 Mar 2003 21:38:38 -0000	1.43
+++ main.c	17 Mar 2003 02:41:36 -0000	1.44
@@ -607,6 +607,24 @@
 
 }
 
+void daemonize() {
+  /* Fork; parent exits. */
+  if (fork())
+    exit(0);
+
+  /* Create new session; make sure we never get a terminal */
+  setsid();
+  if (fork())
+    exit(0);
+
+  chdir("/");
+  umask(000);
+
+  fclose(stdin);
+  fclose(stdout);
+  fclose(stderr);
+}
+
 int main(int argc, char *argv[]) {
   int retval = 0;
 
@@ -614,6 +632,9 @@
     exit(1);
   log(options.loglevel,NULL);         /* assign logging severity level from options */
   global_role = options.Role;   /* assign global_role from options. FIXME: remove from global namespace later. */
+
+  if (options.Daemon)
+    daemonize();
 
   if(options.Role & ROLE_OR_LISTEN) { /* only spawn dns handlers if we're a router */
     if(dns_master_start() < 0) {