networking/libiproute/*: code shrink by optimizing numeric conversions

 and other misc stuff

function                                             old     new   delta
print_tunnel                                         660     656      -4
format_host                                            5       -      -5
get_unsigned                                          70      54     -16
get_u32                                               70      54     -16
do_iplink                                           1173    1151     -22
get_prefix                                           417     393     -24
print_rule                                           800     771     -29
print_addrinfo                                      1374    1342     -32
print_route                                         1745    1709     -36
iprule_modify                                        905     866     -39
iproute_modify                                      1105    1048     -57
get_integer                                           70       -     -70
parse_args                                          1684    1440    -244
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/11 up/down: 0/-594)          Total: -594 bytes
   text    data     bss     dec     hex filename
 817378     476    7892  825746   c9992 busybox_old
 816784     476    7892  825152   c9740 busybox_unstripped

1 files changed, 2 insertions, 7 deletions

diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index a7ec66c7f..66557d8fd 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -202,7 +202,6 @@ static int print_route(const struct sockaddr_nl *who UNUSED_PARAM,
         if (tb[RTA_DST]) {
                 if (r->rtm_dst_len != host_len) {
                         printf("%s/%u ", rt_addr_n2a(r->rtm_family,
-                                                RTA_PAYLOAD(tb[RTA_DST]),
                                                 RTA_DATA(tb[RTA_DST]),
                                                 abuf, sizeof(abuf)),
                                         r->rtm_dst_len
@@ -222,7 +221,6 @@ static int print_route(const struct sockaddr_nl *who UNUSED_PARAM,
         if (tb[RTA_SRC]) {
                 if (r->rtm_src_len != host_len) {
                         printf("from %s/%u ", rt_addr_n2a(r->rtm_family,
-                                                RTA_PAYLOAD(tb[RTA_SRC]),
                                                 RTA_DATA(tb[RTA_SRC]),
                                                 abuf, sizeof(abuf)),
                                         r->rtm_src_len
@@ -252,7 +250,6 @@ static int print_route(const struct sockaddr_nl *who UNUSED_PARAM,
                    and symbolic name will not be useful.
                  */
                 printf(" src %s ", rt_addr_n2a(r->rtm_family,
-                                        RTA_PAYLOAD(tb[RTA_PREFSRC]),
                                         RTA_DATA(tb[RTA_PREFSRC]),
                                         abuf, sizeof(abuf)));
         }
@@ -367,8 +364,7 @@ USE_FEATURE_IP_RULE(ARG_table,)
                                 mxlock |= (1 << RTAX_MTU);
                                 NEXT_ARG();
                         }
-                        if (get_unsigned(&mtu, *argv, 0))
-                                invarg(*argv, "mtu");
+                        mtu = get_unsigned(*argv, "mtu");
                         rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
                 } else if (arg == ARG_protocol) {
                         uint32_t prot;
@@ -391,8 +387,7 @@ USE_FEATURE_IP_RULE(ARG_table,)
                 } else if (arg == ARG_metric) {
                         uint32_t metric;
                         NEXT_ARG();
-                        if (get_u32(&metric, *argv, 0))
-                                invarg(*argv, "metric");
+                        metric = get_u32(*argv, "metric");
                         addattr32(&req.n, sizeof(req), RTA_PRIORITY, metric);
                 } else {
                         int type;