udhcp,ipcalc: simple code shrink (Nico Erfurth <masta AT perlgolf.de>)

function                                             old     new   delta
ipcalc_main                                          609     610      +1
read_staticlease                                     102      85     -17
ether_aton                                            17       -     -17

1 files changed, 2 insertions, 5 deletions

diff --git a/networking/ipcalc.c b/networking/ipcalc.c
index 9e92b643e..8578893af 100644
--- a/networking/ipcalc.c
+++ b/networking/ipcalc.c
@@ -175,16 +175,13 @@ int ipcalc_main(int argc, char **argv)
 
                 if (opt & HOSTNAME) {
                         struct hostent *hostinfo;
-                        int x;
 
                         hostinfo = gethostbyaddr((char *) &ipaddr, sizeof(ipaddr), AF_INET);
                         if (!hostinfo) {
                                 bb_herror_msg_and_die("cannot find hostname for %s", argv[0]);
                         }
-                        for (x = 0; hostinfo->h_name[x]; x++) {
-                                hostinfo->h_name[x] = tolower(hostinfo->h_name[x]);
-                        }
-
+                        str_tolower(hostinfo->h_name);
+                        
                         printf("HOSTNAME=%s\n", hostinfo->h_name);
                 }
         }