bool first = true;
for (;;) {
+ const char *label;
uint8_t c;
c = optval[pos++];
if (c == 0)
/* End of name */
break;
- else if (c <= 63) {
- const char *label;
-
- /* Literal label */
- label = (const char *)&optval[pos];
- pos += c;
- if (pos >= optlen)
- return -EMSGSIZE;
-
- if (!GREEDY_REALLOC(ret, allocated, n + !first + DNS_LABEL_ESCAPED_MAX)) {
- r = -ENOMEM;
- goto fail;
- }
-
- if (first)
- first = false;
- else
- ret[n++] = '.';
-
- r = dns_label_escape(label, c, ret + n, DNS_LABEL_ESCAPED_MAX);
- if (r < 0)
- goto fail;
-
- n += r;
- continue;
- } else {
- r = -EBADMSG;
- goto fail;
- }
- }
+ if (c > 63)
+ return -EBADMSG;
+
+ /* Literal label */
+ label = (const char *)&optval[pos];
+ pos += c;
+ if (pos >= optlen)
+ return -EMSGSIZE;
+
+ if (!GREEDY_REALLOC(ret, allocated, n + !first + DNS_LABEL_ESCAPED_MAX))
+ return -ENOMEM;
+
+ if (first)
+ first = false;
+ else
+ ret[n++] = '.';
+
+ r = dns_label_escape(label, c, ret + n, DNS_LABEL_ESCAPED_MAX);
+ if (r < 0)
+ return r;
- if (!GREEDY_REALLOC(ret, allocated, n + 1)) {
- r = -ENOMEM;
- goto fail;
+ n += r;
}
+ if (n == 0)
+ continue;
+
+ if (!GREEDY_REALLOC(ret, allocated, n + 1))
+ return -ENOMEM;
+
ret[n] = 0;
r = strv_extend(&names, ret);
if (r < 0)
- goto fail;
+ return r;
idx++;
}
*str_arr = TAKE_PTR(names);
return idx;
-
-fail:
- return r;
}