hwclock: fix sizeof bug (used it on pointer, not array); make --systohc exact

[oweals/busybox.git] / networking / ip.c

diff --git a/networking/ip.c b/networking/ip.c
index d51689542cf7cefa69ddb6e5e51217ef4e940f59..7a0f308f0caf5f3f43053954809e4d61c4a8dedf 100644 (file)
--- a/networking/ip.c
+++ b/networking/ip.c
@@ -10,38 +10,114 @@
  * Changes:
  *
  * Rani Assaf <rani@magic.metawire.com> 980929:        resolve addresses
+ * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
  */
 
-#include "busybox.h"
+#include "libbb.h"
 
 #include "libiproute/utils.h"
 #include "libiproute/ip_common.h"
 
-int ip_main(int argc, char **argv);
-int ip_main(int argc, char **argv)
+#if ENABLE_FEATURE_IP_ADDRESS \
+ || ENABLE_FEATURE_IP_ROUTE \
+ || ENABLE_FEATURE_IP_LINK \
+ || ENABLE_FEATURE_IP_TUNNEL \
+ || ENABLE_FEATURE_IP_RULE
+
+static int NORETURN ip_print_help(char **argv UNUSED_PARAM)
 {
-       ip_parse_common_args(&argc, &argv);
+       bb_show_usage();
+}
 
-       if (argc <= 1)
-               bb_show_usage();
+static int ip_do(int (*ip_func)(char **argv), char **argv)
+{
+       argv = ip_parse_common_args(argv + 1);
+       return ip_func(argv);
+}
 
-       if (ENABLE_FEATURE_IP_ADDRESS && matches(argv[1], "address") == 0) {
-               return do_ipaddr(argc-2, argv+2);
-       }
-       if (ENABLE_FEATURE_IP_ROUTE && matches(argv[1], "route") == 0) {
-               return do_iproute(argc-2, argv+2);
-       }
-       if (ENABLE_FEATURE_IP_LINK && matches(argv[1], "link") == 0) {
-               return do_iplink(argc-2, argv+2);
-       }
-       if (ENABLE_FEATURE_IP_TUNNEL
-        && (matches(argv[1], "tunnel") == 0 || strcmp(argv[1], "tunl") == 0)
-       ) {
-               return do_iptunnel(argc-2, argv+2);
-       }
-       if (ENABLE_FEATURE_IP_RULE && matches(argv[1], "rule") == 0) {
-               return do_iprule(argc-2, argv+2);
-       }
+#if ENABLE_FEATURE_IP_ADDRESS
+int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ipaddr_main(int argc UNUSED_PARAM, char **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 UNUSED_PARAM, char **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 UNUSED_PARAM, char **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 UNUSED_PARAM, char **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 UNUSED_PARAM, char **argv)
+{
+       return ip_do(do_iptunnel, argv);
+}
+#endif
 
-       bb_show_usage();
+
+int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ip_main(int argc UNUSED_PARAM, char **argv)
+{
+       static const char keywords[] ALIGN1 =
+               IF_FEATURE_IP_ADDRESS("address\0")
+               IF_FEATURE_IP_ROUTE("route\0")
+               IF_FEATURE_IP_LINK("link\0")
+               IF_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0")
+               IF_FEATURE_IP_RULE("rule\0")
+               ;
+       enum {
+               IF_FEATURE_IP_ADDRESS(IP_addr,)
+               IF_FEATURE_IP_ROUTE(IP_route,)
+               IF_FEATURE_IP_LINK(IP_link,)
+               IF_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
+               IF_FEATURE_IP_RULE(IP_rule,)
+               IP_none
+       };
+       int (*ip_func)(char**) = ip_print_help;
+
+       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
+       }
+       return ip_func(argv);
 }
+
+#endif /* any of ENABLE_FEATURE_IP_xxx is 1 */