static int
parse_addresses(const char *addrstr, struct in6_addr *addrp)
{
char *buffer, *cp, *next;
unsigned int i;
buffer = strdup(addrstr);
if (!buffer) xtables_error(OTHER_PROBLEM, "strdup failed");
for (cp=buffer, i=0; cp && i<IP6T_RT_HOPS; cp=next,i++)
{
next=strchr(cp, ',');
if (next) *next++='\0';
memcpy(&(addrp[i]), numeric_to_addr(cp), sizeof(struct in6_addr));
#if DEBUG
printf("addr str: %s\n", cp);
printf("addr ip6: %s\n", addr_to_numeric((numeric_to_addr(cp))));
printf("addr [%d]: %s\n", i, addr_to_numeric(&(addrp[i])));
#endif
}
if (cp) xtables_error(PARAMETER_PROBLEM, "too many addresses specified");
free(buffer);
#if DEBUG
printf("addr nr: %d\n", i);
#endif
return i;
}
static struct in6_addr *parse_ip6_mask(char *mask)
{
static struct in6_addr maskaddr;
struct in6_addr *addrp;
unsigned int bits;
if (mask == NULL) {
memset(&maskaddr, 0xff, sizeof maskaddr);
return &maskaddr;
}
if ((addrp = numeric_to_addr(mask)) != NULL)
return addrp;
if (string_to_number(mask, 0, 128, &bits) == -1)
ebt_print_error("Invalid IPv6 Mask '%s' specified", mask);
if (bits != 0) {
char *p = (char *)&maskaddr;
memset(p, 0xff, bits / 8);
memset(p + (bits / 8) + 1, 0, (128 - bits) / 8);
p[bits / 8] = 0xff << (8 - (bits & 7));
return &maskaddr;
}
memset(&maskaddr, 0, sizeof maskaddr);
return &maskaddr;
}
