void
conf_print_rtm(FILE *output, struct rt_msghdr *rtm, char *delim, int af)
{
int i;
char *cp, flags[64];
struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
struct sockaddr *sa;
struct sockaddr_in sin;
sin.sin_addr.s_addr = htonl(INADDR_BROADCAST);
cp = ((char *)rtm + rtm->rtm_hdrlen);
for (i = 1; i; i <<= 1)
if (i & rtm->rtm_addrs) {
sa = (struct sockaddr *)cp;
switch (i) {
case RTA_DST:
/* allow arp to get printed with af==AF_LINK */
if ((sa->sa_family == af) ||
(af == AF_LINK && sa->sa_family == AF_INET)) {
if (rtm->rtm_flags & RTF_REJECT)
snprintf(flags, sizeof(flags),
" reject");
else
flags[0] = '\0';
dst = sa;
}
break;
case RTA_GATEWAY:
if (sa->sa_family == af)
gate = sa;
break;
case RTA_NETMASK:
/* netmasks will not have a valid sa_family */
mask = sa;
break;
}
ADVANCE(cp, sa);
}
if (dst && gate && mask && (af == AF_INET || af == AF_INET6)) {
/*
* Suppress printing IPv4 route if it's the default
* route and dhcp (dhclient) is enabled.
*/
if (!(af == AF_INET && isdefaultroute(dst, mask)
&& dhclient_isenabled(routename(gate)))) {
fprintf(output, "%s%s ", delim, netname(dst, mask));
fprintf(output, "%s%s\n", routename(gate), flags);
}
} else if (dst && gate && (af == AF_LINK)) {
/* print arp */
fprintf(output, "%s%s ", delim, routename(dst));
fprintf(output, "%s\n", routename(gate));
}
}
void
conf_print_rtm(FILE *output, struct rt_msghdr *rtm, char *delim, int af)
{
int i;
char *cp;
struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL;
struct sockaddr *sa;
cp = ((char *)rtm + rtm->rtm_hdrlen);
for (i = 1; i; i <<= 1)
if (i & rtm->rtm_addrs) {
sa = (struct sockaddr *)cp;
switch (i) {
case RTA_DST:
/* allow arp to get printed with af==AF_LINK */
if ((sa->sa_family == af) ||
(af == AF_LINK && sa->sa_family == AF_INET))
dst = sa;
break;
case RTA_GATEWAY:
if (sa->sa_family == af)
gate = sa;
break;
case RTA_NETMASK:
/* netmasks will not have a valid sa_family */
mask = sa;
break;
}
ADVANCE(cp, sa);
}
if (dst && mask && gate && (af == AF_INET || af == AF_INET6)) {
/*
* suppress printing IP route if it's the default
* v4 route and dhcp (dhclient) is enabled
*/
if (!(isdefaultroute4(dst) && dhclient_isenabled(routename(gate)))) {
fprintf(output, "%s%s ", delim, netname(dst, mask));
fprintf(output, "%s\n", routename(gate));
}
} else
if (dst && gate && (af == AF_LINK))
/* print arp */
fprintf(output, "%s%s %s\n", delim, routename(dst),
routename(gate));
}