dhcp: get rid of static data signal_pipe

function                                             old     new   delta
udhcp_sp_setup                                        65     110     +45
udhcp_sp_fd_set                                       60      59      -1
udhcpd_main                                         1442    1437      -5
udhcpc_main                                         2684    2679      -5
signal_pipe                                            8       -      -8
packed_usage                                       33292   33284      -8
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/4 up/down: 45/-27)             Total: 18 bytes
   text	   data	    bss	    dec	    hex	filename
 952746	    481	   7296	 960523	  ea80b	busybox_old
 952768	    481	   7288	 960537	  ea819	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 15e9f3924..02766ba16 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -1174,6 +1174,10 @@ int udhcpc6_main(int argc UNUSED_PARAM, char **argv)
         client_data.script = CONFIG_UDHCPC_DEFAULT_SCRIPT;
         client_data.sockfd = -1;
 
+        /* Make sure fd 0,1,2 are open */
+        /* Set up the signal pipe on fds 3,4 - must be before openlog() */
+        udhcp_sp_setup();
+
         /* Parse command line */
         opt = getopt32long(argv, "^"
                 /* O,x: list; -T,-t,-A take numeric param */
@@ -1268,14 +1272,10 @@ int udhcpc6_main(int argc UNUSED_PARAM, char **argv)
                 logmode |= LOGMODE_SYSLOG;
         }
 
-        /* Make sure fd 0,1,2 are open */
-        bb_sanitize_stdio();
         /* Create pidfile */
         write_pidfile(client_data.pidfile);
         /* Goes to stdout (unless NOMMU) and possibly syslog */
         bb_info_msg("started, v"BB_VER);
-        /* Set up the signal pipe */
-        udhcp_sp_setup();
 
         client_data.state = INIT_SELECTING;
         d6_run_script_no_option("deconfig");