[PATCH]: Add -l option to only bind to loopback

Add -l|--loopback option to only bind to the loopback interface.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 src/didi.c |   14 ++++++++++----
 src/http.c |    4 ++--
 src/http.h |    2 +-
 3 files changed, 13 insertions(+), 7 deletions(-)

Index: didiwiki/src/http.c
===================================================================
--- didiwiki.orig/src/http.c
+++ didiwiki/src/http.c
@@ -451,7 +451,7 @@
 ** Implement an HTTP server daemon.
 */
 HttpRequest*
-http_server(int iPort)
+http_server(unsigned int address, int iPort)
 {
   int                listener;      /* The server socket */
   int                connection;    /* A socket for each connection */
@@ -466,7 +466,7 @@
 
   memset(&inaddr, 0, sizeof(inaddr));
   inaddr.sin_family = AF_INET;
-  inaddr.sin_addr.s_addr = INADDR_ANY;
+  inaddr.sin_addr.s_addr = htonl(address);
   inaddr.sin_port = htons(iPort);
   listener = socket(AF_INET, SOCK_STREAM, 0);
 
Index: didiwiki/src/http.h
===================================================================
--- didiwiki.orig/src/http.h
+++ didiwiki/src/http.h
@@ -6,7 +6,7 @@
 typedef struct HttpRequestParam HttpRequestParam;
 
 HttpRequest*
-http_server(int iPort);
+http_server(unsigned int address, int iPort);
 
 HttpRequest*
 http_request_new(void);
Index: didiwiki/src/didi.c
===================================================================
--- didiwiki.orig/src/didi.c
+++ didiwiki/src/didi.c
@@ -14,6 +14,7 @@
   HttpRequest  *req  = NULL;
   int           port = 8000;
   int           c;
+  unsigned int  address = INADDR_ANY;
   char          *didiwiki_home = NULL;
 
   debug = 0;
@@ -23,6 +24,7 @@
       static struct option long_options[] = 
 	{
 	  {"debug", no_argument,       0, 'd'},
+	  {"loopback", no_argument,       0, 'l'},
 	  {"port",  required_argument, 0, 'p'},
 	  {"home",  required_argument, 0, 'h'},
 	  {0, 0, 0, 0}
@@ -31,7 +33,7 @@
       /* getopt_long stores the option index here */
       int option_index = 0;
       
-      c = getopt_long (argc, argv, "dp:h:", long_options, &option_index);
+      c = getopt_long (argc, argv, "dlp:h:", long_options, &option_index);
 
       /* detect the end of the options */
       if (c == -1)
@@ -45,7 +47,11 @@
 	case 'd':
 	  debug = 1;
 	  break;
-	  
+
+	case 'l':
+	  address = INADDR_LOOPBACK;
+	  break;
+
 	case 'p':
 	  port = atoi(optarg);
 	  break;
@@ -55,7 +61,7 @@
 	  break;
 
 	default:
-	  abort ();
+		abort();
 	}
     }
 
@@ -66,7 +72,7 @@
       req = http_request_new(); 	/* reads request from stdin */
     }
   else {
-    req = http_server(port);    /* forks here */
+    req = http_server(address, port);    /* forks here */
   }
 
   wiki_handle_http_request(req);