From e87d7955f8130040a575f2f48962471a27ccc964 Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Tue, 10 Apr 2007 18:43:27 +0000 Subject: - rewrite the ip applet to be less bloaty - mark libiproute's matches() as deprecated. Convert to index_in_(sub)str_array()! text data bss dec hex filename 314 0 0 314 13a ip.o.orig 200 0 0 200 c8 ip.o Using a smallint for the key would save another byte. --- networking/ip.c | 70 +++++++++++++++++++++++++++++++++++++++------------------ 1 file changed, 48 insertions(+), 22 deletions(-) (limited to 'networking/ip.c') diff --git a/networking/ip.c b/networking/ip.c index d51689542..dc9ca1f91 100644 --- a/networking/ip.c +++ b/networking/ip.c @@ -10,6 +10,7 @@ * Changes: * * Rani Assaf 980929: resolve addresses + * Bernhard Fischer rewrote to use index_in_substr_array */ #include "busybox.h" @@ -17,31 +18,56 @@ #include "libiproute/utils.h" #include "libiproute/ip_common.h" +static int ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av) +{ + bb_show_usage(); +} int ip_main(int argc, char **argv); int ip_main(int argc, char **argv) { - ip_parse_common_args(&argc, &argv); - - if (argc <= 1) - bb_show_usage(); + const char * const keywords[] = { + USE_FEATURE_IP_ADDRESS("address",) + USE_FEATURE_IP_ROUTE("route",) + USE_FEATURE_IP_LINK("link",) + USE_FEATURE_IP_TUNNEL("tunnel", "tunl",) + USE_FEATURE_IP_RULE("rule",) + NULL + }; + 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 + }; + int (*ip_func)(int argc, char **argv) = ip_print_help; - 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); + ip_parse_common_args(&argc, &argv); + if (argc > 1) { + int key = index_in_substr_array(keywords, argv[1]); + argc -= 2; + argv += 2; +#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 } - - bb_show_usage(); + return (ip_func(argc, argv)); } -- cgit v1.2.3