int addr_pton_cidr(const char* p, struct xaddr* n, int* l) {
struct xaddr tmp;
int masklen = -1;
char addrbuf[64];
char* mp;
char* cp;
/* Don't modify argument */
if (p == NULL || strlcpy(addrbuf, p,
sizeof(addrbuf)) >= sizeof(addrbuf))
return (-1);
if ((mp = strchr(addrbuf, '/')) != NULL) {
*mp = '\0';
mp++;
masklen = (int) strtol(mp, &cp, 10);
if (*mp == '\0' || *cp != '\0' || masklen > 128)
return (-1);
}
if (addr_pton(addrbuf, &tmp) == -1)
return (-1);
if (mp == NULL)
masklen = addr_unicast_masklen(tmp.af);
if (addr_masklen_valid(tmp.af, masklen) == -1)
return (-1);
if (n != NULL)
rte_memcpy(n, &tmp, sizeof(*n));
if (l != NULL)
*l = masklen;
return (0);
}
/*
* Parse a CIDR address (x.x.x.x/y or xxxx:yyyy::/z).
* Return -1 on parse error, -2 on inconsistency or 0 on success.
*/
static int
addr_pton_cidr(const char *p, struct xaddr *n, u_int *l)
{
struct xaddr tmp;
long unsigned int masklen = 999;
char addrbuf[64], *mp, *cp;
/* Don't modify argument */
if (p == NULL || strlcpy(addrbuf, p, sizeof(addrbuf)) > sizeof(addrbuf))
return -1;
if ((mp = strchr(addrbuf, '/')) != NULL) {
*mp = '\0';
mp++;
masklen = strtoul(mp, &cp, 10);
if (*mp == '\0' || *cp != '\0' || masklen > 128)
return -1;
}
if (addr_pton(addrbuf, &tmp) == -1)
return -1;
if (mp == NULL)
masklen = addr_unicast_masklen(tmp.af);
if (masklen_valid(tmp.af, masklen) == -1)
return -2;
if (addr_host_is_all0s(&tmp, masklen) != 0)
return -2;
if (n != NULL)
memcpy(n, &tmp, sizeof(*n));
if (l != NULL)
*l = masklen;
return 0;
}