/* Function parses match's arguments */
static int parse(int c, char **argv,
int invert,
unsigned int *flags,
const struct ipt_entry *entry,
unsigned int *nfcache,
struct ipt_entry_match **match) {
struct t_ipt_account_info *info = (struct t_ipt_account_info *)(*match)->data;
switch (c) {
/* --aaddr */
case 201:
parse_network(optarg, info);
*flags = 1;
break;
/* --aname */
case 202:
if (strlen(optarg) < IPT_ACCOUNT_NAME_LEN)
strncpy(info->name, optarg, IPT_ACCOUNT_NAME_LEN);
else
exit_error(PARAMETER_PROBLEM, "account: Too long list name");
break;
default:
return 0;
}
return 1;
}
static apr_status_t parse_ip(apr_ipsubnet_t *ipsub, const char *ipstr, int network_allowed)
{
/* supported flavors of IP:
*
* . IPv6 numeric address string (e.g., "fe80::1")
*
* IMPORTANT: Don't store IPv4-mapped IPv6 address as an IPv6 address.
*
* . IPv4 numeric address string (e.g., "127.0.0.1")
*
* . IPv4 network string (e.g., "9.67")
*
* IMPORTANT: This network form is only allowed if network_allowed is on.
*/
int rc;
#if APR_HAVE_IPV6
rc = apr_inet_pton(AF_INET6, ipstr, ipsub->sub);
if (rc == 1) {
if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ipsub->sub)) {
/* apr_ipsubnet_test() assumes that we don't create IPv4-mapped IPv6
* addresses; this of course forces the user to specify IPv4 addresses
* in a.b.c.d style instead of ::ffff:a.b.c.d style.
*/
return APR_EBADIP;
}
ipsub->family = AF_INET6;
}
else
#endif
{
rc = apr_inet_pton(AF_INET, ipstr, ipsub->sub);
if (rc == 1) {
ipsub->family = AF_INET;
}
}
if (rc != 1) {
if (network_allowed) {
return parse_network(ipsub, ipstr);
}
else {
return APR_EBADIP;
}
}
return APR_SUCCESS;
}