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6ca409e0e4
trylink: explain how to modify link and drastically decrease amount of padding (unfortunately, needs hand editing ATM). *: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts size saving: 0.5k
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* ip.c "ip" utility frontend.
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*
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* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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*
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* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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*
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*
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* Changes:
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*
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* Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
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* Bernhard Fischer rewrote to use index_in_substr_array
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*/
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#include "libbb.h"
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#include "libiproute/utils.h"
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#include "libiproute/ip_common.h"
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#if ENABLE_FEATURE_IP_ADDRESS \
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|| ENABLE_FEATURE_IP_ROUTE \
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|| ENABLE_FEATURE_IP_LINK \
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|| ENABLE_FEATURE_IP_TUNNEL \
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|| ENABLE_FEATURE_IP_RULE
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static int ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av)
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{
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bb_show_usage();
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}
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static int (*ip_func)(int argc, char **argv) = ip_print_help;
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static int ip_do(int argc, char **argv)
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{
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ip_parse_common_args(&argc, &argv);
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return ip_func(argc-1, argv+1);
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}
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#if ENABLE_FEATURE_IP_ADDRESS
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int ipaddr_main(int argc, char **argv);
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int ipaddr_main(int argc, char **argv)
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{
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ip_func = do_ipaddr;
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return ip_do(argc, argv);
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}
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#endif
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#if ENABLE_FEATURE_IP_LINK
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int iplink_main(int argc, char **argv);
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int iplink_main(int argc, char **argv)
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{
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ip_func = do_iplink;
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return ip_do(argc, argv);
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}
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#endif
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#if ENABLE_FEATURE_IP_ROUTE
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int iproute_main(int argc, char **argv);
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int iproute_main(int argc, char **argv)
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{
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ip_func = do_iproute;
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return ip_do(argc, argv);
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}
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#endif
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#if ENABLE_FEATURE_IP_RULE
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int iprule_main(int argc, char **argv);
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int iprule_main(int argc, char **argv)
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{
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ip_func = do_iprule;
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return ip_do(argc, argv);
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}
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#endif
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#if ENABLE_FEATURE_IP_TUNNEL
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int iptunnel_main(int argc, char **argv);
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int iptunnel_main(int argc, char **argv)
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{
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ip_func = do_iptunnel;
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return ip_do(argc, argv);
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}
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#endif
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int ip_main(int argc, char **argv);
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int ip_main(int argc, char **argv)
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{
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static const char keywords[] ALIGN1 =
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USE_FEATURE_IP_ADDRESS("address\0")
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USE_FEATURE_IP_ROUTE("route\0")
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USE_FEATURE_IP_LINK("link\0")
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USE_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0")
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USE_FEATURE_IP_RULE("rule\0")
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;
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enum {
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USE_FEATURE_IP_ADDRESS(IP_addr,)
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USE_FEATURE_IP_ROUTE(IP_route,)
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USE_FEATURE_IP_LINK(IP_link,)
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USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
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USE_FEATURE_IP_RULE(IP_rule,)
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IP_none
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};
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ip_parse_common_args(&argc, &argv);
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if (argc > 1) {
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int key = index_in_substrings(keywords, argv[1]);
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argc -= 2;
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argv += 2;
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#if ENABLE_FEATURE_IP_ADDRESS
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if (key == IP_addr)
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ip_func = do_ipaddr;
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#endif
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#if ENABLE_FEATURE_IP_ROUTE
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if (key == IP_route)
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ip_func = do_iproute;
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#endif
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#if ENABLE_FEATURE_IP_LINK
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if (key == IP_link)
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ip_func = do_iplink;
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#endif
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#if ENABLE_FEATURE_IP_TUNNEL
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if (key == IP_tunnel || key == IP_tunl)
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ip_func = do_iptunnel;
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#endif
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#if ENABLE_FEATURE_IP_RULE
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if (key == IP_rule)
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ip_func = do_iprule;
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#endif
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}
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return ip_func(argc, argv);
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}
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#endif /* any of ENABLE_FEATURE_IP_xxx is 1 */
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