Correcting tag name to be like previous ones1_3_0

1 files changed, 703 insertions, 0 deletions

diff --git a/networking/route.c b/networking/route.c
new file mode 100644
index 0000000..a8926f4
--- /dev/null
+++ b/networking/route.c
@@ -0,0 +1,703 @@
+/* vi: set sw=4 ts=4: */
+/* route
+ *
+ * Similar to the standard Unix route, but with only the necessary
+ * parts for AF_INET and AF_INET6
+ *
+ * Bjorn Wesen, Axis Communications AB
+ *
+ * Author of the original route:
+ *              Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
+ *              (derived from FvK's 'route.c     1.70    01/04/94')
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ * $Id: route.c,v 1.26 2004/03/19 23:27:08 mjn3 Exp $
+ *
+ * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru>
+ * adjustments by Larry Doolittle  <LRDoolittle@lbl.gov>
+ *
+ * IPV6 support added by Bart Visscher <magick@linux-fan.com>
+ */
+
+/* 2004/03/09  Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * Rewritten to fix several bugs, add additional error checking, and
+ * remove ridiculous amounts of bloat.
+ */
+
+#include "busybox.h"
+#include "inet_common.h"
+#include <getopt.h>
+#include <net/route.h>
+#include <net/if.h>
+
+
+#ifndef RTF_UP
+/* Keep this in sync with /usr/src/linux/include/linux/route.h */
+#define RTF_UP          0x0001	/* route usable                 */
+#define RTF_GATEWAY     0x0002	/* destination is a gateway     */
+#define RTF_HOST        0x0004	/* host entry (net otherwise)   */
+#define RTF_REINSTATE   0x0008	/* reinstate route after tmout  */
+#define RTF_DYNAMIC     0x0010	/* created dyn. (by redirect)   */
+#define RTF_MODIFIED    0x0020	/* modified dyn. (by redirect)  */
+#define RTF_MTU         0x0040	/* specific MTU for this route  */
+#ifndef RTF_MSS
+#define RTF_MSS         RTF_MTU	/* Compatibility :-(            */
+#endif
+#define RTF_WINDOW      0x0080	/* per route window clamping    */
+#define RTF_IRTT        0x0100	/* Initial round trip time      */
+#define RTF_REJECT      0x0200	/* Reject route                 */
+#endif
+
+#if defined (SIOCADDRTOLD) || defined (RTF_IRTT)	/* route */
+#define HAVE_NEW_ADDRT 1
+#endif
+
+#if HAVE_NEW_ADDRT
+#define mask_in_addr(x) (((struct sockaddr_in *)&((x).rt_genmask))->sin_addr.s_addr)
+#define full_mask(x) (x)
+#else
+#define mask_in_addr(x) ((x).rt_genmask)
+#define full_mask(x) (((struct sockaddr_in *)&(x))->sin_addr.s_addr)
+#endif
+
+/* The RTACTION entries must agree with tbl_verb[] below! */
+#define RTACTION_ADD		1
+#define RTACTION_DEL		2
+
+/* For the various tbl_*[] arrays, the 1st byte is the offset to
+ * the next entry and the 2nd byte is return value. */
+
+#define NET_FLAG			1
+#define HOST_FLAG			2
+
+/* We remap '-' to '#' to avoid problems with getopt. */
+static const char tbl_hash_net_host[] =
+	"\007\001#net\0"
+/*	"\010\002#host\0" */
+	"\007\002#host"				/* Since last, we can save a byte. */
+;
+
+#define KW_TAKES_ARG		020
+#define KW_SETS_FLAG		040
+
+#define KW_IPVx_METRIC		020
+#define KW_IPVx_NETMASK		021
+#define KW_IPVx_GATEWAY		022
+#define KW_IPVx_MSS			023
+#define KW_IPVx_WINDOW		024
+#define KW_IPVx_IRTT		025
+#define KW_IPVx_DEVICE		026
+
+#define KW_IPVx_FLAG_ONLY	040
+#define KW_IPVx_REJECT		040
+#define KW_IPVx_MOD			041
+#define KW_IPVx_DYN			042
+#define KW_IPVx_REINSTATE	043
+
+static const char tbl_ipvx[] =
+	/* 020 is the "takes an arg" bit */
+#if HAVE_NEW_ADDRT
+	"\011\020metric\0"
+#endif
+	"\012\021netmask\0"
+	"\005\022gw\0"
+	"\012\022gateway\0"
+	"\006\023mss\0"
+	"\011\024window\0"
+#ifdef RTF_IRTT
+	"\007\025irtt\0"
+#endif
+	"\006\026dev\0"
+	"\011\026device\0"
+	/* 040 is the "sets a flag" bit - MUST match flags_ipvx[] values below. */
+#ifdef RTF_REJECT
+	"\011\040reject\0"
+#endif
+	"\006\041mod\0"
+	"\006\042dyn\0"
+/*	"\014\043reinstate\0" */
+	"\013\043reinstate"			/* Since last, we can save a byte. */
+;
+
+static const int flags_ipvx[] = { /* MUST match tbl_ipvx[] values above. */
+#ifdef RTF_REJECT
+	RTF_REJECT,
+#endif
+	RTF_MODIFIED,
+	RTF_DYNAMIC,
+	RTF_REINSTATE
+};
+
+static int kw_lookup(const char *kwtbl, char ***pargs)
+{
+	if (**pargs) {
+		do {
+			if (strcmp(kwtbl+2, **pargs) == 0) { /* Found a match. */
+				*pargs += 1;
+				if (kwtbl[1] & KW_TAKES_ARG) {
+					if (!**pargs) {	/* No more args! */
+						bb_show_usage();
+					}
+					*pargs += 1; /* Calling routine will use args[-1]. */
+				}
+				return kwtbl[1];
+			}
+			kwtbl += *kwtbl;
+		} while (*kwtbl);
+	}
+	return 0;
+}
+
+/* Add or delete a route, depending on action. */
+
+static void INET_setroute(int action, char **args)
+{
+	struct rtentry rt;
+	const char *netmask = NULL;
+	int skfd, isnet, xflag;
+
+	/* Grab the -net or -host options.  Remember they were transformed. */
+	xflag = kw_lookup(tbl_hash_net_host, &args);
+
+	/* If we did grab -net or -host, make sure we still have an arg left. */
+	if (*args == NULL) {
+		bb_show_usage();
+	}
+
+	/* Clean out the RTREQ structure. */
+	memset((char *) &rt, 0, sizeof(struct rtentry));
+
+	{
+		const char *target = *args++;
+		char *prefix;
+
+		/* recognize x.x.x.x/mask format. */
+		prefix = strchr(target, '/');
+		if(prefix) {
+			int prefix_len;
+
+			prefix_len = xatoul_range(prefix+1, 0, 32);
+			mask_in_addr(rt) = htonl( ~ (0xffffffffUL >> prefix_len));
+			*prefix = '\0';
+#if HAVE_NEW_ADDRT
+			rt.rt_genmask.sa_family = AF_INET;
+#endif
+		} else {
+			/* Default netmask. */
+			netmask = bb_str_default;
+		}
+		/* Prefer hostname lookup is -host flag (xflag==1) was given. */
+		isnet = INET_resolve(target, (struct sockaddr_in *) &rt.rt_dst,
+							 (xflag & HOST_FLAG));
+		if (isnet < 0) {
+			bb_error_msg_and_die("resolving %s", target);
+		}
+		if(prefix) {
+			/* do not destroy prefix for process args */
+			*prefix = '/';
+		}
+	}
+
+	if (xflag) {		/* Reinit isnet if -net or -host was specified. */
+		isnet = (xflag & NET_FLAG);
+	}
+
+	/* Fill in the other fields. */
+	rt.rt_flags = ((isnet) ? RTF_UP : (RTF_UP | RTF_HOST));
+
+	while (*args) {
+		int k = kw_lookup(tbl_ipvx, &args);
+		const char *args_m1 = args[-1];
+
+		if (k & KW_IPVx_FLAG_ONLY) {
+			rt.rt_flags |= flags_ipvx[k & 3];
+			continue;
+		}
+
+#if HAVE_NEW_ADDRT
+		if (k == KW_IPVx_METRIC) {
+			rt.rt_metric = xatoul(args_m1) + 1;
+			continue;
+		}
+#endif
+
+		if (k == KW_IPVx_NETMASK) {
+			struct sockaddr mask;
+
+			if (mask_in_addr(rt)) {
+				bb_show_usage();
+			}
+
+			netmask = args_m1;
+			isnet = INET_resolve(netmask, (struct sockaddr_in *) &mask, 0);
+			if (isnet < 0) {
+				bb_error_msg_and_die("resolving %s", netmask);
+			}
+			rt.rt_genmask = full_mask(mask);
+			continue;
+		}
+
+		if (k == KW_IPVx_GATEWAY) {
+			if (rt.rt_flags & RTF_GATEWAY) {
+				bb_show_usage();
+			}
+
+			isnet = INET_resolve(args_m1,
+								 (struct sockaddr_in *) &rt.rt_gateway, 1);
+			rt.rt_flags |= RTF_GATEWAY;
+
+			if (isnet) {
+				if (isnet < 0) {
+					bb_error_msg_and_die("resolving %s", args_m1);
+				}
+				bb_error_msg_and_die("gateway %s is a NETWORK", args_m1);
+			}
+			continue;
+		}
+
+		if (k == KW_IPVx_MSS) {	/* Check valid MSS bounds. */
+			rt.rt_flags |= RTF_MSS;
+			rt.rt_mss = xatoul_range(args_m1, 64, 32768);
+			continue;
+		}
+
+		if (k == KW_IPVx_WINDOW) {	/* Check valid window bounds. */
+			rt.rt_flags |= RTF_WINDOW;
+			rt.rt_window = xatoul_range(args_m1, 128, INT_MAX);
+			continue;
+		}
+
+#ifdef RTF_IRTT
+		if (k == KW_IPVx_IRTT) {
+			rt.rt_flags |= RTF_IRTT;
+			rt.rt_irtt = xatoul(args_m1);
+			rt.rt_irtt *= (sysconf(_SC_CLK_TCK) / 100);	/* FIXME */
+#if 0					/* FIXME: do we need to check anything of this? */
+			if (rt.rt_irtt < 1 || rt.rt_irtt > (120 * HZ)) {
+				bb_error_msg_and_die("bad irtt");
+			}
+#endif
+			continue;
+		}
+#endif
+
+		/* Device is special in that it can be the last arg specified
+		 * and doesn't requre the dev/device keyword in that case. */
+		if (!rt.rt_dev && ((k == KW_IPVx_DEVICE) || (!k && !*++args))) {
+			/* Don't use args_m1 here since args may have changed! */
+			rt.rt_dev = args[-1];
+			continue;
+		}
+
+		/* Nothing matched. */
+		bb_show_usage();
+	}
+
+#ifdef RTF_REJECT
+	if ((rt.rt_flags & RTF_REJECT) && !rt.rt_dev) {
+		rt.rt_dev = "lo";
+	}
+#endif
+
+	/* sanity checks.. */
+	if (mask_in_addr(rt)) {
+		unsigned long mask = mask_in_addr(rt);
+
+		mask = ~ntohl(mask);
+		if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) {
+			bb_error_msg_and_die("netmask %.8x and host route conflict",
+								 (unsigned int) mask);
+		}
+		if (mask & (mask + 1)) {
+			bb_error_msg_and_die("bogus netmask %s", netmask);
+		}
+		mask = ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr;
+		if (mask & ~mask_in_addr(rt)) {
+			bb_error_msg_and_die("netmask and route address conflict");
+		}
+	}
+
+	/* Fill out netmask if still unset */
+	if ((action == RTACTION_ADD) && (rt.rt_flags & RTF_HOST)) {
+		mask_in_addr(rt) = 0xffffffff;
+	}
+
+	/* Create a socket to the INET kernel. */
+	skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
+
+	if (ioctl(skfd, ((action==RTACTION_ADD) ? SIOCADDRT : SIOCDELRT), &rt)<0) {
+		bb_perror_msg_and_die("SIOC[ADD|DEL]RT");
+	}
+
+	if (ENABLE_FEATURE_CLEAN_UP) close(skfd);
+}
+
+#ifdef CONFIG_FEATURE_IPV6
+
+static void INET6_setroute(int action, char **args)
+{
+	struct sockaddr_in6 sa6;
+	struct in6_rtmsg rt;
+	int prefix_len, skfd;
+	const char *devname;
+
+		/* We know args isn't NULL from the check in route_main. */
+		const char *target = *args++;
+
+		if (strcmp(target, bb_str_default) == 0) {
+			prefix_len = 0;
+			memset(&sa6, 0, sizeof(sa6));
+		} else {
+			char *cp;
+			if ((cp = strchr(target, '/'))) { /* Yes... const to non is ok. */
+				*cp = 0;
+				prefix_len = xatoul_range(cp+1, 0, 128);
+			} else {
+				prefix_len = 128;
+			}
+			if (INET6_resolve(target, (struct sockaddr_in6 *) &sa6) < 0) {
+				bb_error_msg_and_die("resolving %s", target);
+			}
+		}
+
+	/* Clean out the RTREQ structure. */
+	memset((char *) &rt, 0, sizeof(struct in6_rtmsg));
+
+	memcpy(&rt.rtmsg_dst, sa6.sin6_addr.s6_addr, sizeof(struct in6_addr));
+
+	/* Fill in the other fields. */
+	rt.rtmsg_dst_len = prefix_len;
+	rt.rtmsg_flags = ((prefix_len == 128) ? (RTF_UP|RTF_HOST) : RTF_UP);
+	rt.rtmsg_metric = 1;
+
+	devname = NULL;
+
+	while (*args) {
+		int k = kw_lookup(tbl_ipvx, &args);
+		const char *args_m1 = args[-1];
+
+		if ((k == KW_IPVx_MOD) || (k == KW_IPVx_DYN)) {
+			rt.rtmsg_flags |= flags_ipvx[k & 3];
+			continue;
+		}
+
+		if (k == KW_IPVx_METRIC) {
+			rt.rtmsg_metric = xatoul(args_m1);
+			continue;
+		}
+
+		if (k == KW_IPVx_GATEWAY) {
+			if (rt.rtmsg_flags & RTF_GATEWAY) {
+				bb_show_usage();
+			}
+
+			if (INET6_resolve(args_m1, (struct sockaddr_in6 *) &sa6) < 0) {
+				bb_error_msg_and_die("resolving %s", args_m1);
+			}
+			memcpy(&rt.rtmsg_gateway, sa6.sin6_addr.s6_addr,
+				   sizeof(struct in6_addr));
+			rt.rtmsg_flags |= RTF_GATEWAY;
+			continue;
+		}
+
+		/* Device is special in that it can be the last arg specified
+		 * and doesn't requre the dev/device keyword in that case. */
+		if (!devname && ((k == KW_IPVx_DEVICE) || (!k && !*++args))) {
+			/* Don't use args_m1 here since args may have changed! */
+			devname = args[-1];
+			continue;
+		}
+
+		/* Nothing matched. */
+		bb_show_usage();
+	}
+
+	/* Create a socket to the INET6 kernel. */
+	skfd = xsocket(AF_INET6, SOCK_DGRAM, 0);
+
+	rt.rtmsg_ifindex = 0;
+
+	if (devname) {
+		struct ifreq ifr;
+		memset(&ifr, 0, sizeof(ifr));
+		strncpy(ifr.ifr_name, devname, sizeof(ifr.ifr_name));
+
+		if (ioctl(skfd, SIOGIFINDEX, &ifr) < 0) {
+			bb_perror_msg_and_die("SIOGIFINDEX");
+		}
+		rt.rtmsg_ifindex = ifr.ifr_ifindex;
+	}
+
+	/* Tell the kernel to accept this route. */
+	if (ioctl(skfd, ((action==RTACTION_ADD) ? SIOCADDRT : SIOCDELRT), &rt)<0) {
+		bb_perror_msg_and_die("SIOC[ADD|DEL]RT");
+	}
+
+	if (ENABLE_FEATURE_CLEAN_UP) close(skfd);
+}
+#endif
+
+static const unsigned int flagvals[] = { /* Must agree with flagchars[]. */
+	RTF_GATEWAY,
+	RTF_HOST,
+	RTF_REINSTATE,
+	RTF_DYNAMIC,
+	RTF_MODIFIED,
+#ifdef CONFIG_FEATURE_IPV6
+	RTF_DEFAULT,
+	RTF_ADDRCONF,
+	RTF_CACHE
+#endif
+};
+
+#define IPV4_MASK (RTF_GATEWAY|RTF_HOST|RTF_REINSTATE|RTF_DYNAMIC|RTF_MODIFIED)
+#define IPV6_MASK (RTF_GATEWAY|RTF_HOST|RTF_DEFAULT|RTF_ADDRCONF|RTF_CACHE)
+
+static const char flagchars[] =		/* Must agree with flagvals[]. */
+	"GHRDM"
+#ifdef CONFIG_FEATURE_IPV6
+	"DAC"
+#endif
+;
+
+static
+#ifndef CONFIG_FEATURE_IPV6
+__inline
+#endif
+void set_flags(char *flagstr, int flags)
+{
+	int i;
+
+	*flagstr++ = 'U';
+
+	for (i=0 ; (*flagstr = flagchars[i]) != 0 ; i++) {
+		if (flags & flagvals[i]) {
+			++flagstr;
+		}
+	}
+}
+
+/* also used in netstat */
+void displayroutes(int noresolve, int netstatfmt);
+void displayroutes(int noresolve, int netstatfmt)
+{
+	char devname[64], flags[16], sdest[16], sgw[16];
+	unsigned long int d, g, m;
+	int flgs, ref, use, metric, mtu, win, ir;
+	struct sockaddr_in s_addr;
+	struct in_addr mask;
+
+	FILE *fp = xfopen("/proc/net/route", "r");
+
+	printf("Kernel IP routing table\n"
+			  "Destination     Gateway         Genmask"
+			  "         Flags %s Iface\n",
+			  netstatfmt ? "  MSS Window  irtt" : "Metric Ref    Use");
+
+	if (fscanf(fp, "%*[^\n]\n") < 0) { /* Skip the first line. */
+		goto ERROR;		   /* Empty or missing line, or read error. */
+	}
+	while (1) {
+		int r;
+		r = fscanf(fp, "%63s%lx%lx%X%d%d%d%lx%d%d%d\n",
+				   devname, &d, &g, &flgs, &ref, &use, &metric, &m,
+				   &mtu, &win, &ir);
+		if (r != 11) {
+			if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
+				break;
+			}
+		ERROR:
+			bb_error_msg_and_die("fscanf");
+		}
+
+		if (!(flgs & RTF_UP)) { /* Skip interfaces that are down. */
+			continue;
+		}
+
+		set_flags(flags, (flgs & IPV4_MASK));
+#ifdef RTF_REJECT
+		if (flgs & RTF_REJECT) {
+			flags[0] = '!';
+		}
+#endif
+
+		memset(&s_addr, 0, sizeof(struct sockaddr_in));
+		s_addr.sin_family = AF_INET;
+		s_addr.sin_addr.s_addr = d;
+		INET_rresolve(sdest, sizeof(sdest), &s_addr,
+					  (noresolve | 0x8000), m);	/* Default instead of *. */
+
+		s_addr.sin_addr.s_addr = g;
+		INET_rresolve(sgw, sizeof(sgw), &s_addr,
+					  (noresolve | 0x4000), m);	/* Host instead of net. */
+
+		mask.s_addr = m;
+		printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), flags);
+		if (netstatfmt) {
+			printf("%5d %-5d %6d %s\n", mtu, win, ir, devname);
+		} else {
+			printf("%-6d %-2d %7d %s\n", metric, ref, use, devname);
+		}
+	}
+}
+
+#ifdef CONFIG_FEATURE_IPV6
+
+static void INET6_displayroutes(int noresolve)
+{
+	char addr6[128], naddr6[128];
+	/* In addr6x, we store both 40-byte ':'-delimited ipv6 addresses.
+	 * We read the non-delimited strings into the tail of the buffer
+	 * using fscanf and then modify the buffer by shifting forward
+	 * while inserting ':'s and the nul terminator for the first string.
+	 * Hence the strings are at addr6x and addr6x+40.  This generates
+	 * _much_ less code than the previous (upstream) approach. */
+	char addr6x[80];
+	char iface[16], flags[16];
+	int iflags, metric, refcnt, use, prefix_len, slen;
+	struct sockaddr_in6 snaddr6;
+
+	FILE *fp = xfopen("/proc/net/ipv6_route", "r");
+
+	printf("Kernel IPv6 routing table\n%-44s%-40s"
+			  "Flags Metric Ref    Use Iface\n",
+			  "Destination", "Next Hop");
+
+	while (1) {
+		int r;
+		r = fscanf(fp, "%32s%x%*s%x%32s%x%x%x%x%s\n",
+				   addr6x+14, &prefix_len, &slen, addr6x+40+7,
+				   &metric, &use, &refcnt, &iflags, iface);
+		if (r != 9) {
+			if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
+				break;
+			}
+		ERROR:
+			bb_error_msg_and_die("fscanf");
+		}
+
+		/* Do the addr6x shift-and-insert changes to ':'-delimit addresses.
+		 * For now, always do this to validate the proc route format, even
+		 * if the interface is down. */
+		{
+			int i = 0;
+			char *p = addr6x+14;
+
+			do {
+				if (!*p) {
+					if (i==40) { /* nul terminator for 1st address? */
+						addr6x[39] = 0;	/* Fixup... need 0 instead of ':'. */
+						++p;	/* Skip and continue. */
+						continue;
+					}
+					goto ERROR;
+				}
+				addr6x[i++] = *p++;
+				if (!((i+1)%5)) {
+					addr6x[i++] = ':';
+				}
+			} while (i < 40+28+7);
+		}
+
+		if (!(iflags & RTF_UP)) { /* Skip interfaces that are down. */
+			continue;
+		}
+
+		set_flags(flags, (iflags & IPV6_MASK));
+
+		r = 0;
+		do {
+			inet_pton(AF_INET6, addr6x + r,
+					  (struct sockaddr *) &snaddr6.sin6_addr);
+			snaddr6.sin6_family = AF_INET6;
+			INET6_rresolve(naddr6, sizeof(naddr6),
+						   (struct sockaddr_in6 *) &snaddr6,
+						   0x0fff /* Apparently, upstream never resolves. */
+						   );
+
+			if (!r) {			/* 1st pass */
+				snprintf(addr6, sizeof(addr6), "%s/%d", naddr6, prefix_len);
+				r += 40;
+			} else {			/* 2nd pass */
+				/* Print the info. */
+				printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
+						  addr6, naddr6, flags, metric, refcnt, use, iface);
+				break;
+			}
+		} while (1);
+	}
+}
+
+#endif
+
+#define ROUTE_OPT_A			0x01
+#define ROUTE_OPT_n			0x02
+#define ROUTE_OPT_e			0x04
+#define ROUTE_OPT_INET6		0x08 /* Not an actual option. See below. */
+
+/* 1st byte is offset to next entry offset.  2nd byte is return value. */
+static const char tbl_verb[] =	/* 2nd byte matches RTACTION_* code */
+	"\006\001add\0"
+	"\006\002del\0"
+/*	"\011\002delete\0" */
+	"\010\002delete"			/* Since last, we can save a byte. */
+;
+
+int route_main(int argc, char **argv)
+{
+	unsigned opt;
+	int what;
+	char *family;
+	char **p;
+
+	/* First, remap '-net' and '-host' to avoid getopt problems. */
+	p = argv;
+	while (*++p) {
+		if ((strcmp(*p, "-net") == 0) || (strcmp(*p, "-host") == 0)) {
+			p[0][0] = '#';
+		}
+	}
+
+	opt = getopt32(argc, argv, "A:ne", &family);
+
+	if ((opt & ROUTE_OPT_A) && strcmp(family, "inet")) {
+#ifdef CONFIG_FEATURE_IPV6
+		if (strcmp(family, "inet6") == 0) {
+			opt |= ROUTE_OPT_INET6;	/* Set flag for ipv6. */
+		} else
+#endif
+		bb_show_usage();
+	}
+
+	argv += optind;
+
+	/* No more args means display the routing table. */
+	if (!*argv) {
+		int noresolve = (opt & ROUTE_OPT_n) ? 0x0fff : 0;
+#ifdef CONFIG_FEATURE_IPV6
+		if (opt & ROUTE_OPT_INET6)
+			INET6_displayroutes(noresolve);
+		else
+#endif
+			displayroutes(noresolve, opt & ROUTE_OPT_e);
+
+		fflush_stdout_and_exit(EXIT_SUCCESS);
+	}
+
+	/* Check verb.  At the moment, must be add, del, or delete. */
+	what = kw_lookup(tbl_verb, &argv);
+	if (!what || !*argv) {		/* Unknown verb or no more args. */
+		bb_show_usage();
+	}
+
+#ifdef CONFIG_FEATURE_IPV6
+	if (opt & ROUTE_OPT_INET6)
+		INET6_setroute(what, argv);
+	else
+#endif
+		INET_setroute(what, argv);
+
+	return EXIT_SUCCESS;
+}