static void
ntreestuff(void)
{
size_t needed;
int mib[6];
char *buf, *next, *lim;
struct rt_msghdr *rtm;
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0;
mib[4] = NET_RT_DUMP;
mib[5] = 0;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump estimate");
}
if ((buf = malloc(needed)) == 0) {
errx(2, "malloc(%lu)", (unsigned long)needed);
}
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump");
}
lim = buf + needed;
for (next = buf; next < lim; next += rtm->rtm_msglen) {
rtm = (struct rt_msghdr *)next;
np_rtentry(rtm);
}
}
void dump_rtlist(void)
{
union {
struct rt_msghdr rt;
char buf[4096];
} rtbuf;
struct rt_msghdr* rtm;
ER er;
printf("Destination Netmask Gateway Flags Interface\n");
er = so_rtlist(AF_INET, NET_RT_DUMP, 0, &rtbuf, sizeof(rtbuf) );
DEBUG_PRINT(("dump_rtlist: so_rtlist = %d(%d, %d)\n", er, MERCD(er), SERCD(er)));
for(rtm = &rtbuf.rt; rtm->rtm_msglen != 0; rtm = (struct rt_msghdr *)((void*)rtm + rtm->rtm_msglen) ) {
np_rtentry(rtm);
}
}
static void
ntreestuff(int fibnum, int af)
{
size_t needed;
int mib[7];
char *buf, *next, *lim;
struct rt_msghdr *rtm;
struct sockaddr *sa;
int fam = 0, ifindex = 0, size;
struct ifaddrs *ifap, *ifa;
struct sockaddr_dl *sdl;
/*
* Retrieve interface list at first
* since we need #ifindex -> if_xname match
*/
if (getifaddrs(&ifap) != 0)
err(EX_OSERR, "getifaddrs");
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
ifindex = sdl->sdl_index;
if (ifindex >= ifmap_size) {
size = roundup(ifindex + 1, 32) *
sizeof(struct ifmap_entry);
if ((ifmap = realloc(ifmap, size)) == NULL)
errx(2, "realloc(%d) failed", size);
memset(&ifmap[ifmap_size], 0,
size - ifmap_size *
sizeof(struct ifmap_entry));
ifmap_size = roundup(ifindex + 1, 32);
}
if (*ifmap[ifindex].ifname != '\0')
continue;
strlcpy(ifmap[ifindex].ifname, ifa->ifa_name, IFNAMSIZ);
}
freeifaddrs(ifap);
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = af;
mib[4] = NET_RT_DUMP;
mib[5] = 0;
mib[6] = fibnum;
if (sysctl(mib, 7, NULL, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump estimate");
}
if ((buf = malloc(needed)) == 0) {
errx(2, "malloc(%lu)", (unsigned long)needed);
}
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump");
}
lim = buf + needed;
for (next = buf; next < lim; next += rtm->rtm_msglen) {
rtm = (struct rt_msghdr *)next;
/*
* Peek inside header to determine AF
*/
sa = (struct sockaddr *)(rtm + 1);
if (fam != sa->sa_family) {
fam = sa->sa_family;
size_cols(fam, NULL);
pr_family(fam);
pr_rthdr(fam);
}
np_rtentry(rtm);
}
}
