/* set the ip mask and ip address */
void parse_ip_address(char *address, uint32_t *addr, uint32_t *msk)
{
char *p;
/* first the mask */
if ((p = strrchr(address, '/')) != NULL) {
*p = '\0';
if (ip_mask(p + 1, (unsigned char *)msk))
print_error("Problem with the IP mask");
}
else
*msk = 0xFFFFFFFF;
if (undot_ip(address, (unsigned char *)addr))
print_error("Problem with the IP address");
*addr = *addr & *msk;
}
void ebt_parse_ip_address(char *address, uint32_t *addr, uint32_t *msk)
{
char *p;
if ((p = strrchr(address, '/')) != NULL) {
*p = '\0';
if (ip_mask(p + 1, (unsigned char *)msk)) {
ebt_print_error("Problem with the IP mask '%s'", p + 1);
return;
}
} else
*msk = 0xFFFFFFFF;
if (undot_ip(address, (unsigned char *)addr)) {
ebt_print_error("Problem with the IP address '%s'", address);
return;
}
*addr = *addr & *msk;
}
/* put the mask into 4 bytes */
static int ip_mask(char *mask, unsigned char *mask2)
{
char *end;
long int bits;
uint32_t mask22;
if (undot_ip(mask, mask2)) {
/* not the /a.b.c.e format, maybe the /x format */
bits = strtol(mask, &end, 10);
if (*end != '\0' || bits > 32 || bits < 0)
return -1;
if (bits != 0) {
mask22 = htonl(0xFFFFFFFF << (32 - bits));
memcpy(mask2, &mask22, 4);
} else {
mask22 = 0xFFFFFFFF;
memcpy(mask2, &mask22, 4);
}
}
return 0;
}
static void ebt_parse_ip_address(char *address, uint32_t *addr, uint32_t *msk)
{
char *p;
/* first the mask */
if ((p = strrchr(address, '/')) != NULL) {
*p = '\0';
if (ip_mask(p + 1, (unsigned char *)msk)) {
xtables_error(PARAMETER_PROBLEM,
"Problem with the IP mask '%s'", p + 1);
return;
}
} else
*msk = 0xFFFFFFFF;
if (undot_ip(address, (unsigned char *)addr)) {
xtables_error(PARAMETER_PROBLEM,
"Problem with the IP address '%s'", address);
return;
}
*addr = *addr & *msk;
}
