- char *cl;
- spprintf(&cl, 0, "Content-Length: %lu", (unsigned long) content_length);
- http_send_header_string(cl);
- efree(cl);
+ char cl_header_str[128];
+ size_t cl_header_len;
+ cl_header_len = snprintf(cl_header_str, lenof(cl_header_str), "Content-Length: %lu", (unsigned long) content_length);
+ http_send_header_string_ex(cl_header_str, cl_header_len, 1);