busybox/networking/ip.c
Denis Vlasenko 6ca409e0e4 trylink: produce even more info about final link stage
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
2007-08-12 20:58:27 +00:00

131 lines
2.8 KiB
C

/* 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>
*
*
* Changes:
*
* Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
* Bernhard Fischer rewrote to use index_in_substr_array
*/
#include "libbb.h"
#include "libiproute/utils.h"
#include "libiproute/ip_common.h"
#if ENABLE_FEATURE_IP_ADDRESS \
|| ENABLE_FEATURE_IP_ROUTE \
|| ENABLE_FEATURE_IP_LINK \
|| ENABLE_FEATURE_IP_TUNNEL \
|| ENABLE_FEATURE_IP_RULE
static int ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av)
{
bb_show_usage();
}
static int (*ip_func)(int argc, char **argv) = ip_print_help;
static int ip_do(int argc, char **argv)
{
ip_parse_common_args(&argc, &argv);
return ip_func(argc-1, argv+1);
}
#if ENABLE_FEATURE_IP_ADDRESS
int ipaddr_main(int argc, char **argv);
int ipaddr_main(int argc, char **argv)
{
ip_func = do_ipaddr;
return ip_do(argc, argv);
}
#endif
#if ENABLE_FEATURE_IP_LINK
int iplink_main(int argc, char **argv);
int iplink_main(int argc, char **argv)
{
ip_func = do_iplink;
return ip_do(argc, argv);
}
#endif
#if ENABLE_FEATURE_IP_ROUTE
int iproute_main(int argc, char **argv);
int iproute_main(int argc, char **argv)
{
ip_func = do_iproute;
return ip_do(argc, argv);
}
#endif
#if ENABLE_FEATURE_IP_RULE
int iprule_main(int argc, char **argv);
int iprule_main(int argc, char **argv)
{
ip_func = do_iprule;
return ip_do(argc, argv);
}
#endif
#if ENABLE_FEATURE_IP_TUNNEL
int iptunnel_main(int argc, char **argv);
int iptunnel_main(int argc, char **argv)
{
ip_func = do_iptunnel;
return ip_do(argc, argv);
}
#endif
int ip_main(int argc, char **argv);
int ip_main(int argc, 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")
;
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
};
ip_parse_common_args(&argc, &argv);
if (argc > 1) {
int key = index_in_substrings(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
}
return ip_func(argc, argv);
}
#endif /* any of ENABLE_FEATURE_IP_xxx is 1 */