udhcp: slight shrink

udhcpd_main                                         1171    1208     +37
udhcpc_main                                         2363    2387     +24
dhcprelay_main                                      1145    1146      +1
dhcprelay_stopflag                                     4       1      -3
dhcprelay_signal_handler                              11       8      -3
client_background                                     46      42      -4
udhcp_read_interface                                 230     211     -19
udhcp_make_pidfile                                    76       -     -76
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/4 up/down: 62/-105)           Total: -43 bytes
   text    data     bss     dec     hex filename
 770052    1096   11228  782376   bf028 busybox_old
 769980    1096   11228  782304   befe0 busybox_unstripped

1 files changed, 6 insertions, 5 deletions

diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c
index 648f7623c..1e62f8e40 100644
--- a/networking/udhcp/socket.c
+++ b/networking/udhcp/socket.c
@@ -44,11 +44,11 @@ int read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t
         struct sockaddr_in *our_ip;
 
         memset(&ifr, 0, sizeof(ifr));
-        fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
-        if (fd < 0) {
-                bb_perror_msg("socket failed");
-                return -1;
-        }
+        fd = xsocket(AF_INET, SOCK_RAW, IPPROTO_RAW);
+//      if (fd < 0) {
+//              bb_perror_msg("socket failed");
+//              return -1;
+//      }
 
         ifr.ifr_addr.sa_family = AF_INET;
         strncpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
@@ -83,6 +83,7 @@ int read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t
                         arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]);
         }
 
+        close(fd);
         return 0;
 }