--- a/src/http/ngx_http.h
+++ b/src/http/ngx_http.h
@@ -22,10 +22,10 @@ typedef struct ngx_http_cleanup_s  ngx_h
 
 
 typedef struct {
-    u_int   connection;
-    char   *action;
-    char   *client;
-    char   *url;
+    u_int     connection;
+    u_char   *action;
+    u_char   *client;
+    u_char   *url;
 } ngx_http_log_ctx_t;
 
 
@@ -69,14 +69,14 @@ void ngx_http_close_request(ngx_http_req
 void ngx_http_close_connection(ngx_connection_t *c);
 
 
-int ngx_http_read_client_request_body(ngx_http_request_t *r,
-                                      int request_buffer_size);
+ngx_int_t ngx_http_read_client_request_body(ngx_http_request_t *r,
+                                            size_t request_buffer_size);
 
 int ngx_http_send_header(ngx_http_request_t *r);
 int ngx_http_special_response_handler(ngx_http_request_t *r, int error);
 
 
-time_t ngx_http_parse_time(char *value, size_t len);
+time_t ngx_http_parse_time(u_char *value, size_t len);
 size_t ngx_http_get_time(char *buf, time_t t);
 ngx_table_elt_t *ngx_http_add_header(void *header,
                                      ngx_http_header_t *http_headers);