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, 9 insertions, 11 deletions

diff --git a/networking/libiproute/utils.h b/networking/libiproute/utils.h
index c1dbc6e8b..3603c75a7 100644
--- a/networking/libiproute/utils.h
+++ b/networking/libiproute/utils.h
@@ -64,19 +64,17 @@ extern int get_addr_1(inet_prefix *dst, char *arg, int family);
 extern int get_addr(inet_prefix *dst, char *arg, int family);
 extern int get_prefix(inet_prefix *dst, char *arg, int family);
 
-extern int get_integer(int *val, char *arg, int base);
-extern int get_unsigned(unsigned *val, char *arg, int base);
-#define get_byte get_u8
-#define get_ushort get_u16
-#define get_short get_s16
-extern int get_u32(uint32_t *val, char *arg, int base);
-extern int get_u16(uint16_t *val, char *arg, int base);
-extern int get_s16(int16_t *val, char *arg, int base);
-extern int get_u8(uint8_t *val, char *arg, int base);
-extern int get_s8(int8_t *val, char *arg, int base);
+extern unsigned get_unsigned(char *arg, const char *errmsg);
+extern uint32_t get_u32(char *arg, const char *errmsg);
+extern uint16_t get_u16(char *arg, const char *errmsg);
 
+extern const char *rt_addr_n2a(int af, void *addr, char *buf, int buflen);
+#ifdef RESOLVE_HOSTNAMES
 extern const char *format_host(int af, int len, void *addr, char *buf, int buflen);
-extern const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int buflen);
+#else
+#define format_host(af, len, addr, buf, buflen) \
+        rt_addr_n2a(af, addr, buf, buflen)
+#endif
 
 void invarg(const char *, const char *) NORETURN;
 void duparg(const char *, const char *) NORETURN;