assert(name);
assert(*name);
- assert(dest);
n = *name;
d = dest;
else if (*n == '\\' || *n == '.') {
/* Escaped backslash or dot */
- *(d++) = *(n++);
+
+ if (d)
+ *(d++) = *n;
sz--;
r++;
+ n++;
} else if (n[0] >= '0' && n[0] <= '9') {
unsigned k;
if (k < ' ' || k > 255 || k == 127)
return -EINVAL;
- *(d++) = (char) k;
+ if (d)
+ *(d++) = (char) k;
sz--;
r++;
} else if ((uint8_t) *n >= (uint8_t) ' ' && *n != 127) {
/* Normal character */
- *(d++) = *(n++);
+
+ if (d)
+ *(d++) = *n;
sz--;
r++;
+ n++;
} else
return -EINVAL;
}
if (r == 0 && *n)
return -EINVAL;
- if (sz >= 1)
+ if (sz >= 1 && d)
*d = 0;
*name = n;
int dns_label_escape(const char *p, size_t l, char *dest, size_t sz);
int dns_label_escape_new(const char *p, size_t l, char **ret);
+static inline int dns_name_parent(const char **name) {
+ return dns_label_unescape(name, NULL, DNS_LABEL_MAX);
+}
+
int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);
int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);