Add a -s flag to specify the broadcast destination IP address.

diff --git a/server/dhcpd.c b/server/dhcpd.c
index 8b7d770675dfa5af2acf7d9abc5f33df57f8d368..9ee8614823b8c06a7ba23e903ea71aac24757bde 100644 (file)
--- a/server/dhcpd.c
+++ b/server/dhcpd.c
@@ -22,7 +22,7 @@
 
 #ifndef lint
 static char ocopyright[] =
-"$Id: dhcpd.c,v 1.70 1999/05/07 17:32:38 mellon Exp $ Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.";
+"$Id: dhcpd.c,v 1.71 1999/07/06 17:17:16 mellon Exp $ Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.";
 #endif
 
   static char copyright[] =
@@ -46,6 +46,8 @@ int server_identifier_matched;
 u_int16_t local_port;
 u_int16_t remote_port;
 
+struct in_addr limited_broadcast;
+
 int log_priority;
 #ifdef DEBUG
 int log_perror = -1;
@@ -74,6 +76,7 @@ int main (argc, argv, envp)
        int daemon = 1;
 #endif
        int quiet = 0;
+       char *server = (char *)0;
 
        /* Initially, log errors to stderr as well as to syslogd. */
 #ifdef SYSLOG_4_2
@@ -115,6 +118,10 @@ int main (argc, argv, envp)
                        daemon = 0;
 #endif
                        log_perror = -1;
+               } else if (!strcmp (argv [i], "-s")) {
+                       if (++i == argc)
+                               usage ();
+                       server = argv [i];
                } else if (!strcmp (argv [i], "-cf")) {
                        if (++i == argc)
                                usage ();
@@ -177,6 +184,21 @@ int main (argc, argv, envp)
   
        remote_port = htons (ntohs (local_port) + 1);
 
+       if (server) {
+               if (!inet_aton (server, &limited_broadcast)) {
+                       struct hostent *he;
+                       he = gethostbyname (server);
+                       if (he) {
+                               memcpy (&limited_broadcast,
+                                       he -> h_addr_list [0],
+                                       sizeof limited_broadcast);
+                       } else
+                               limited_broadcast.s_addr = INADDR_BROADCAST;
+               }
+       } else {
+               limited_broadcast.s_addr = INADDR_BROADCAST;
+       }
+
        /* Get the current time... */
        GET_TIME (&cur_time);