static CHAR8 *str2ip6(CHAR8 *str)
{
UINT8 i, j, p;
size_t len;
CHAR8 *a, *b, t;
static UINT16 ip[8];
for(i=0; i < 8; i++) {
ip[i] = 0;
}
len = strlen(str);
a = b = str;
for(i=p=0; i < len; i++, b++) {
if (*b != ':')
continue;
*b = '\0';
ip[p++] = str2ns(a);
*b = ':';
a = b + 1;
if ( *(b+1) == ':' )
break;
}
a = b = (str + len);
for(j=len, p=7; j > i; j--, a--) {
if (*a != ':')
continue;
t = *b;
*b = '\0';
ip[p--] = str2ns(a+1);
*b = t;
b = a;
}
return (CHAR8 *)ip;
}
static CHAR8 *str2ip6(CHAR8 *str)
{
UINT8 i = 0, j = 0, p = 0;
size_t len = 0, dotcount = 0;
enum { MAX_IP6_DOTS = 7 };
CHAR8 *a = NULL, *b = NULL, t = 0;
static UINT16 ip[8];
memset(ip, 0, sizeof(ip));
/* Count amount of ':' to prevent overflows.
* max. count = 7. Returns an invalid ip6 that
* can be checked against
*/
for (a = str; *a != 0; ++a) {
if (*a == ':')
++dotcount;
}
if (dotcount > MAX_IP6_DOTS)
return (CHAR8 *)ip;
len = strlen(str);
a = b = str;
for (i = p = 0; i < len; i++, b++) {
if (*b != ':')
continue;
*b = '\0';
ip[p++] = str2ns(a);
*b = ':';
a = b + 1;
if (b[1] == ':' )
break;
}
a = b = (str + len);
for (j = len, p = 7; j > i; j--, a--) {
if (*a != ':')
continue;
t = *b;
*b = '\0';
ip[p--] = str2ns(a+1);
*b = t;
b = a;
}
return (CHAR8 *)ip;
}
