/*
* _hpaddr: construct hostent structure with one address
*/
static struct hostent *
_hpaddr(int af, const char *name, void *addr, int *errp)
{
struct hostent *hp, hpbuf;
char *addrs[2];
hp = &hpbuf;
hp->h_name = (char *)name;
hp->h_aliases = NULL;
hp->h_addrtype = af;
hp->h_length = ADDRLEN(af);
hp->h_addr_list = addrs;
addrs[0] = (char *)addr;
addrs[1] = NULL;
return _hpcopy(hp, errp);
}
gint
format_addr (struct sockaddr *sa, gchar *h, gsize hL, gchar *p, gsize pL, GError **err)
{
if (!sa) {
GSETERROR(err,"Invalid parameter");
return 0;
}
memset (h, 0x00, hL);
memset (p, 0x00, pL);
*h = '?';
*p = '?';
/*no reverse resolution, only numeric addresses*/
if (0 != getnameinfo (sa, ADDRLEN(sa), h, hL, p, pL, NI_NUMERICHOST|NI_NUMERICSERV)) {
GSETERROR(err, "Cannot format the address (%s)", strerror(errno));
return 0;
}
return 1;
}
static int
_files_ghbyname(void *rval, void *cb_data, va_list ap)
{
const char *name;
int af;
int *errp;
int match, nalias;
char *p, *line, *addrstr, *cname;
FILE *fp;
struct hostent *rethp, *hp, hpbuf;
char *aliases[MAXALIASES + 1], *addrs[2];
union inx_addr addrbuf;
char buf[BUFSIZ];
int af0;
name = va_arg(ap, const char *);
af = va_arg(ap, int);
errp = va_arg(ap, int *);
*(struct hostent **)rval = NULL;
if ((fp = _files_open(errp)) == NULL)
return NS_UNAVAIL;
rethp = hp = NULL;
af0 = af;
while (fgets(buf, sizeof(buf), fp)) {
line = buf;
if ((addrstr = _hgetword(&line)) == NULL
|| (cname = _hgetword(&line)) == NULL)
continue;
match = (strcasecmp(cname, name) == 0);
nalias = 0;
while ((p = _hgetword(&line)) != NULL) {
if (!match)
match = (strcasecmp(p, name) == 0);
if (nalias < MAXALIASES)
aliases[nalias++] = p;
}
if (!match)
continue;
switch (af0) {
case AF_INET:
if (inet_aton(addrstr, (struct in_addr *)&addrbuf)
!= 1) {
*errp = NO_DATA; /* name found */
continue;
}
af = af0;
break;
#ifdef INET6
case AF_INET6:
if (inet_pton(af, addrstr, &addrbuf) != 1) {
*errp = NO_DATA; /* name found */
continue;
}
af = af0;
break;
#endif
case AF_UNSPEC:
if (inet_aton(addrstr, (struct in_addr *)&addrbuf)
== 1) {
af = AF_INET;
break;
}
#ifdef INET6
if (inet_pton(AF_INET6, addrstr, &addrbuf) == 1) {
af = AF_INET6;
break;
}
#endif
*errp = NO_DATA; /* name found */
continue;
/* NOTREACHED */
}
hp = &hpbuf;
hp->h_name = cname;
hp->h_aliases = aliases;
aliases[nalias] = NULL;
hp->h_addrtype = af;
hp->h_length = ADDRLEN(af);
hp->h_addr_list = addrs;
addrs[0] = (char *)&addrbuf;
addrs[1] = NULL;
hp = _hpcopy(hp, errp);
rethp = _hpmerge(rethp, hp, errp);
}
fclose(fp);
*(struct hostent **)rval = rethp;
return (rethp != NULL) ? NS_SUCCESS : NS_NOTFOUND;
}
/* Retrieve address information for the given ifp */
static int
if_get_addr (struct interface *ifp, struct sockaddr *addr, const char *label)
{
int ret;
struct lifreq lifreq;
struct sockaddr_storage mask, dest;
char *dest_pnt = NULL;
u_char prefixlen = 0;
afi_t af;
int flags = 0;
/* Interface's name and address family.
* We need to use the logical interface name / label, if we've been
* given one, in order to get the right address
*/
strncpy (lifreq.lifr_name, (label ? label : ifp->name), IFNAMSIZ);
/* Interface's address. */
memcpy (&lifreq.lifr_addr, addr, ADDRLEN (addr));
af = addr->sa_family;
/* Point to point or broad cast address pointer init. */
dest_pnt = NULL;
if (AF_IOCTL (af, SIOCGLIFDSTADDR, (caddr_t) & lifreq) >= 0)
{
memcpy (&dest, &lifreq.lifr_dstaddr, ADDRLEN (addr));
if (af == AF_INET)
dest_pnt = (char *) &(SIN (&dest)->sin_addr);
else
dest_pnt = (char *) &(SIN6 (&dest)->sin6_addr);
flags = ZEBRA_IFA_PEER;
}
if (af == AF_INET)
{
ret = if_ioctl (SIOCGLIFNETMASK, (caddr_t) & lifreq);
if (ret < 0)
{
if (errno != EADDRNOTAVAIL)
{
zlog_warn ("SIOCGLIFNETMASK (%s) fail: %s", ifp->name,
safe_strerror (errno));
return ret;
}
return 0;
}
memcpy (&mask, &lifreq.lifr_addr, ADDRLEN (addr));
prefixlen = ip_masklen (SIN (&mask)->sin_addr);
if (!dest_pnt && (if_ioctl (SIOCGLIFBRDADDR, (caddr_t) & lifreq) >= 0))
{
memcpy (&dest, &lifreq.lifr_broadaddr, sizeof (struct sockaddr_in));
dest_pnt = (char *) &SIN (&dest)->sin_addr;
}
}
#ifdef HAVE_IPV6
else if (af == AF_INET6)
{
if (if_ioctl_ipv6 (SIOCGLIFSUBNET, (caddr_t) & lifreq) < 0)
{
if (ifp->flags & IFF_POINTOPOINT)
prefixlen = IPV6_MAX_BITLEN;
else
zlog_warn ("SIOCGLIFSUBNET (%s) fail: %s",
ifp->name, safe_strerror (errno));
}
else
{
prefixlen = lifreq.lifr_addrlen;
}
}
#endif /* HAVE_IPV6 */
/* Set address to the interface. */
if (af == AF_INET)
connected_add_ipv4 (ifp, flags, &SIN (addr)->sin_addr, prefixlen,
(struct in_addr *) dest_pnt, label);
#ifdef HAVE_IPV6
else if (af == AF_INET6)
connected_add_ipv6 (ifp, flags, &SIN6 (addr)->sin6_addr, prefixlen,
(struct in6_addr *) dest_pnt, label);
#endif /* HAVE_IPV6 */
return 0;
}