/* vi: set sw=4 ts=4: */
/*
- * ip.c "ip" utility frontend.
- *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
- *
- * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
- * Bernhard Fischer rewrote to use index_in_substr_array
+ * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
+ * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
*/
#include "libbb.h"
|| ENABLE_FEATURE_IP_TUNNEL \
|| ENABLE_FEATURE_IP_RULE
-static int ATTRIBUTE_NORETURN ip_print_help(char ATTRIBUTE_UNUSED **argv)
+static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
{
bb_show_usage();
}
-static int ip_do(int (*ip_func)(char **argv), char **argv)
+typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
+
+static int ip_do(ip_func_ptr_t ip_func, char **argv)
{
- argv = ip_parse_common_args(argv);
+ argv = ip_parse_common_args(argv + 1);
return ip_func(argv);
}
#if ENABLE_FEATURE_IP_ADDRESS
int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int ipaddr_main(int argc, char **argv)
+int ipaddr_main(int argc UNUSED_PARAM, char **argv)
{
- return ip_do(do_ipaddr, argv);
+ return ip_do(do_ipaddr, argv);
}
#endif
#if ENABLE_FEATURE_IP_LINK
int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int iplink_main(int argc, char **argv)
+int iplink_main(int argc UNUSED_PARAM, char **argv)
{
- return ip_do(do_iplink, argv);
+ return ip_do(do_iplink, argv);
}
#endif
#if ENABLE_FEATURE_IP_ROUTE
int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int iproute_main(int argc, char **argv)
+int iproute_main(int argc UNUSED_PARAM, char **argv)
{
- return ip_do(do_iproute, argv);
+ return ip_do(do_iproute, argv);
}
#endif
#if ENABLE_FEATURE_IP_RULE
int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int iprule_main(int argc, char **argv)
+int iprule_main(int argc UNUSED_PARAM, char **argv)
{
- return ip_do(do_iprule, argv);
+ return ip_do(do_iprule, argv);
}
#endif
#if ENABLE_FEATURE_IP_TUNNEL
int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int iptunnel_main(int argc, char **argv)
+int iptunnel_main(int argc UNUSED_PARAM, char **argv)
{
- return ip_do(do_iptunnel, argv);
+ return ip_do(do_iptunnel, argv);
}
#endif
int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int ip_main(int argc, char **argv)
+int ip_main(int argc UNUSED_PARAM, char **argv)
{
static const char keywords[] ALIGN1 =
- USE_FEATURE_IP_ADDRESS("address\0")
- USE_FEATURE_IP_ROUTE("route\0")
- USE_FEATURE_IP_LINK("link\0")
- USE_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0")
- USE_FEATURE_IP_RULE("rule\0")
+ IF_FEATURE_IP_ADDRESS("address\0")
+ IF_FEATURE_IP_ROUTE("route\0")
+ IF_FEATURE_IP_ROUTE("r\0")
+ IF_FEATURE_IP_LINK("link\0")
+ IF_FEATURE_IP_TUNNEL("tunnel\0")
+ IF_FEATURE_IP_TUNNEL("tunl\0")
+ IF_FEATURE_IP_RULE("rule\0")
;
- enum {
- USE_FEATURE_IP_ADDRESS(IP_addr,)
- USE_FEATURE_IP_ROUTE(IP_route,)
- USE_FEATURE_IP_LINK(IP_link,)
- USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
- USE_FEATURE_IP_RULE(IP_rule,)
- IP_none
+ static const ip_func_ptr_t ip_func_ptrs[] = {
+ ip_print_help,
+ IF_FEATURE_IP_ADDRESS(do_ipaddr,)
+ IF_FEATURE_IP_ROUTE(do_iproute,)
+ IF_FEATURE_IP_ROUTE(do_iproute,)
+ IF_FEATURE_IP_LINK(do_iplink,)
+ IF_FEATURE_IP_TUNNEL(do_iptunnel,)
+ IF_FEATURE_IP_TUNNEL(do_iptunnel,)
+ IF_FEATURE_IP_RULE(do_iprule,)
};
- int (*ip_func)(char **argv) = ip_print_help;
+ ip_func_ptr_t ip_func;
+ int key;
argv = ip_parse_common_args(argv + 1);
- if (*argv) {
- int key = index_in_substrings(keywords, *argv);
- argv++;
-#if ENABLE_FEATURE_IP_ADDRESS
- if (key == IP_addr)
- ip_func = do_ipaddr;
-#endif
-#if ENABLE_FEATURE_IP_ROUTE
- if (key == IP_route)
- ip_func = do_iproute;
-#endif
-#if ENABLE_FEATURE_IP_LINK
- if (key == IP_link)
- ip_func = do_iplink;
-#endif
-#if ENABLE_FEATURE_IP_TUNNEL
- if (key == IP_tunnel || key == IP_tunl)
- ip_func = do_iptunnel;
-#endif
-#if ENABLE_FEATURE_IP_RULE
- if (key == IP_rule)
- ip_func = do_iprule;
-#endif
- }
+ key = *argv ? index_in_substrings(keywords, *argv++) : -1;
+ ip_func = ip_func_ptrs[key + 1];
+
return ip_func(argv);
}