[bug] bug in ngx_http_proxy_module.c version 0.5.31

[Manlio Perillo]

Igor, I have found a possible bug in the proxy module.

The problem is with this piece of code, at line 1139:

if (h->key.len == r->lowcase_index) {
     ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
} else {
     for (i = 0; i < h->key.len; i++) {
         h->lowcase_key[i] = ngx_tolower(h->lowcase_key[i]);
     }
}


When h->key.len != r->lowcase_index h, h->lowcase_key will contain no data.

It should be:
h->lowcase_key[i] = ngx_tolower(h->key.data[i]);



Regards  Manlio Perillo