several fixes from openWRT project

1 files changed, 12 insertions, 2 deletions

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index ff4d5018c..499183f18 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -53,6 +53,7 @@ struct client_config_t client_config = {
         .abort_if_no_lease = 0,
         .foreground = 0,
         .quit_after_lease = 0,
+        .release_on_quit = 0,
         .background_if_no_lease = 0,
         .interface = "eth0",
         .pidfile = NULL,
@@ -169,6 +170,7 @@ int udhcpc_main(int argc, char *argv[])
                 {"now",         no_argument,            0, 'n'},
                 {"pidfile",     required_argument,      0, 'p'},
                 {"quit",        no_argument,            0, 'q'},
+                {"release",     no_argument,            0, 'R'},
                 {"request",     required_argument,      0, 'r'},
                 {"script",      required_argument,      0, 's'},
                 {"timeout",     required_argument,      0, 'T'},
@@ -180,7 +182,7 @@ int udhcpc_main(int argc, char *argv[])
         /* get options */
         while (1) {
                 int option_index = 0;
-                c = getopt_long(argc, argv, "c:CV:fbH:h:F:i:np:qr:s:T:t:v", arg_options, &option_index);
+                c = getopt_long(argc, argv, "c:CV:fbH:h:F:i:np:qRr:s:T:t:v", arg_options, &option_index);
                 if (c == -1) break;
 
                 switch (c) {
@@ -250,6 +252,9 @@ int udhcpc_main(int argc, char *argv[])
                 case 'q':
                         client_config.quit_after_lease = 1;
                         break;
+                case 'R':
+                        client_config.release_on_quit = 1;
+                        break;
                 case 'r':
                         requested_ip = inet_addr(optarg);
                         break;
@@ -495,8 +500,11 @@ int udhcpc_main(int argc, char *argv[])
 
                                         state = BOUND;
                                         change_mode(LISTEN_NONE);
-                                        if (client_config.quit_after_lease)
+                                        if (client_config.quit_after_lease) {
+                                                if (client_config.release_on_quit)
+                                                        perform_release();
                                                 return 0;
+                                        }
                                         if (!client_config.foreground)
                                                 client_background();
 
@@ -526,6 +534,8 @@ int udhcpc_main(int argc, char *argv[])
                                 break;
                         case SIGTERM:
                                 bb_info_msg("Received SIGTERM");
+                                if (client_config.release_on_quit)
+                                        perform_release();
                                 return 0;
                         }
                 } else if (retval == -1 && errno == EINTR) {