diff --git a/src/http/modules/proxy/ngx_http_proxy_handler.c b/src/http/modules/proxy/ngx_http_proxy_handler.c
index e382f05..d36867d 100644
--- a/src/http/modules/proxy/ngx_http_proxy_handler.c
+++ b/src/http/modules/proxy/ngx_http_proxy_handler.c
@@ -7,12 +7,12 @@
 
 static int ngx_http_proxy_handler(ngx_http_request_t *r);
 
-static char *ngx_http_proxy_log_proxy_state(ngx_http_request_t *r, char *buf,
-                                            uintptr_t data);
-static char *ngx_http_proxy_log_cache_state(ngx_http_request_t *r, char *buf,
-                                            uintptr_t data);
-static char *ngx_http_proxy_log_reason(ngx_http_request_t *r, char *buf,
-                                       uintptr_t data);
+static u_char *ngx_http_proxy_log_proxy_state(ngx_http_request_t *r,
+                                              u_char *buf, uintptr_t data);
+static u_char *ngx_http_proxy_log_cache_state(ngx_http_request_t *r,
+                                              u_char *buf, uintptr_t data);
+static u_char *ngx_http_proxy_log_reason(ngx_http_request_t *r, u_char *buf,
+                                         uintptr_t data);
 
 static int ngx_http_proxy_pre_conf(ngx_conf_t *cf);
 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
@@ -146,7 +146,7 @@
       ngx_conf_set_path_slot,
       NGX_HTTP_LOC_CONF_OFFSET,
       offsetof(ngx_http_proxy_loc_conf_t, temp_path),
-      ngx_garbage_collector_temp_handler },
+      (void *) ngx_garbage_collector_temp_handler },
 
     { ngx_string("proxy_temp_file_write_size"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
@@ -591,7 +591,7 @@
                       ngx_close_socket_n " failed");
     }
 
-    c->fd = -1;
+    c->fd = (ngx_socket_t) -1;
 }
 
 
@@ -614,12 +614,12 @@
                         ctx->proxy->lcf->upstream->uri.data,
                         r->uri.data + ctx->proxy->lcf->upstream->location->len,
                         r->args.len ? "?" : "",
-                        r->args.len ? r->args.data : "");
+                        r->args.len ? r->args.data : (u_char *) "");
 }
 
 
-static char *ngx_http_proxy_log_proxy_state(ngx_http_request_t *r, char *buf,
-                                            uintptr_t data)
+static u_char *ngx_http_proxy_log_proxy_state(ngx_http_request_t *r,
+                                              u_char *buf, uintptr_t data)
 {
     ngx_http_proxy_ctx_t  *p;
 
@@ -644,7 +644,8 @@
         *buf++ = '-';
 
     } else {
-        buf += ngx_snprintf(buf, NGX_TIME_T_LEN, TIME_T_FMT, p->state->expired);
+        buf += ngx_snprintf((char *) buf, NGX_TIME_T_LEN,
+                            TIME_T_FMT, p->state->expired);
     }
 
     *buf++ = '/';
@@ -653,7 +654,8 @@
         *buf++ = '-';
 
     } else {
-        buf += ngx_snprintf(buf, NGX_TIME_T_LEN, TIME_T_FMT, p->state->bl_time);
+        buf += ngx_snprintf((char *) buf, NGX_TIME_T_LEN,
+                            TIME_T_FMT, p->state->bl_time);
     }
 
     *buf++ = '/';
@@ -666,7 +668,7 @@
         *buf++ = '-';
 
     } else {
-        buf += ngx_snprintf(buf, 4, "%d", p->state->status);
+        buf += ngx_snprintf((char *) buf, 4, "%d", p->state->status);
     }
 
     *buf++ = '/';
@@ -685,7 +687,8 @@
         *buf++ = '-';
 
     } else {
-        buf += ngx_snprintf(buf, NGX_TIME_T_LEN, TIME_T_FMT, p->state->expires);
+        buf += ngx_snprintf((char *) buf, NGX_TIME_T_LEN,
+                            TIME_T_FMT, p->state->expires);
     }
 
     *buf++ = ' ';
@@ -695,8 +698,8 @@
 }
 
 
-static char *ngx_http_proxy_log_cache_state(ngx_http_request_t *r, char *buf,
-                                            uintptr_t data)
+static u_char *ngx_http_proxy_log_cache_state(ngx_http_request_t *r,
+                                              u_char *buf, uintptr_t data)
 {
     ngx_http_proxy_ctx_t  *p;
 
@@ -712,8 +715,8 @@
 }
 
 
-static char *ngx_http_proxy_log_reason(ngx_http_request_t *r, char *buf,
-                                       uintptr_t data)
+static u_char *ngx_http_proxy_log_reason(ngx_http_request_t *r, u_char *buf,
+                                         uintptr_t data)
 {
     ngx_http_proxy_ctx_t  *p;
 
@@ -777,17 +780,17 @@
 
     */
 
-    conf->request_buffer_size = NGX_CONF_UNSET;
-    conf->connect_timeout = NGX_CONF_UNSET;
-    conf->send_timeout = NGX_CONF_UNSET;
+    conf->request_buffer_size = NGX_CONF_UNSET_SIZE;
+    conf->connect_timeout = NGX_CONF_UNSET_MSEC;
+    conf->send_timeout = NGX_CONF_UNSET_MSEC;
 
     conf->preserve_host = NGX_CONF_UNSET;
     conf->set_x_real_ip = NGX_CONF_UNSET;
     conf->add_x_forwarded_for = NGX_CONF_UNSET;
 
-    conf->header_buffer_size = NGX_CONF_UNSET;
-    conf->read_timeout = NGX_CONF_UNSET;
-    conf->busy_buffers_size = NGX_CONF_UNSET;
+    conf->header_buffer_size = NGX_CONF_UNSET_SIZE;
+    conf->read_timeout = NGX_CONF_UNSET_MSEC;
+    conf->busy_buffers_size = NGX_CONF_UNSET_SIZE;
 
     /*
      * "proxy_max_temp_file_size" is hardcoded to 1G for reverse proxy,
@@ -795,7 +798,7 @@
      */
     conf->max_temp_file_size = 1024 * 1024 * 1024;
 
-    conf->temp_file_write_size = NGX_CONF_UNSET;
+    conf->temp_file_write_size = NGX_CONF_UNSET_SIZE;
 
     /* "proxy_cyclic_temp_file" is disabled */
     conf->cyclic_temp_file = 0;
@@ -906,8 +909,9 @@
 {
     ngx_http_proxy_loc_conf_t *lcf = conf;
 
-    int                        i, len;
-    char                      *err, *host;
+    ngx_uint_t                 i, len;
+    char                      *err;
+    u_char                    *host;
     in_addr_t                  addr;
     ngx_str_t                 *value;
     struct hostent            *h;
@@ -946,10 +950,10 @@
 
     /* AF_INET only */
 
-    addr = inet_addr(host);
+    addr = inet_addr((char *) host);
 
     if (addr == INADDR_NONE) {
-        h = gethostbyname(host);
+        h = gethostbyname((char *) host);
 
         if (h == NULL || h->h_addr_list[0] == NULL) {
             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "host %s not found", host);
@@ -980,7 +984,7 @@
                           NGX_CONF_ERROR);
 
             len = ngx_inet_ntop(AF_INET,
-                                (char *) &lcf->peers->peers[i].addr,
+                                (u_char *) &lcf->peers->peers[i].addr,
                                 lcf->peers->peers[i].addr_port_text.data,
                                 len);
 
diff --git a/src/http/modules/proxy/ngx_http_proxy_handler.h b/src/http/modules/proxy/ngx_http_proxy_handler.h
index dd9cd15..2e6cb84 100644
--- a/src/http/modules/proxy/ngx_http_proxy_handler.h
+++ b/src/http/modules/proxy/ngx_http_proxy_handler.h
@@ -40,40 +40,40 @@
     ngx_str_t                        host_header;
     ngx_str_t                        port_text;
     ngx_str_t                       *location;
-    int                              port;
+
+    ngx_int_t                        port;
+
     unsigned                         default_port:1;
 } ngx_http_proxy_upstream_conf_t;
 
 
 typedef struct {
-    ssize_t                          request_buffer_size;
+    size_t                           request_buffer_size;
+    size_t                           header_buffer_size;
+    size_t                           busy_buffers_size;
+    size_t                           max_temp_file_size;
+    size_t                           temp_file_write_size;
+
     ngx_msec_t                       connect_timeout;
     ngx_msec_t                       send_timeout;
-    ssize_t                          header_buffer_size;
     ngx_msec_t                       read_timeout;
+    time_t                           default_expires;
+
+    ngx_int_t                        lm_factor;
+
+    ngx_uint_t                       next_upstream;
+    ngx_uint_t                       use_stale;
 
     ngx_bufs_t                       bufs;
-    ssize_t                          busy_buffers_size;
 
-    ssize_t                          max_temp_file_size;
-    ssize_t                          temp_file_write_size;
     ngx_flag_t                       cyclic_temp_file;
-
     ngx_flag_t                       cache;
-
     ngx_flag_t                       preserve_host;
     ngx_flag_t                       set_x_real_ip;
     ngx_flag_t                       add_x_forwarded_for;
-
     ngx_flag_t                       pass_server;
     ngx_flag_t                       pass_x_accel_expires;
-
     ngx_flag_t                       ignore_expires;
-    int                              lm_factor;
-    time_t                           default_expires;
-
-    u_int                            next_upstream;
-    u_int                            use_stale;
 
     ngx_path_t                      *cache_path;
     ngx_path_t                      *temp_path;
@@ -96,9 +96,9 @@
     ngx_http_proxy_state_e           cache_state;
     time_t                           expired;
     time_t                           bl_time;
-    int                              bl_state;
+    ngx_uint_t                       bl_state;
 
-    int                              status;
+    ngx_uint_t                       status;
     ngx_http_proxy_reason_e          reason;
     time_t                           time;
     time_t                           expires;
@@ -130,7 +130,7 @@
 
 typedef struct {
     ngx_http_cache_ctx_t             ctx;
-    int                              status;
+    ngx_uint_t                       status;
     ngx_str_t                        status_line;
 
     ngx_http_proxy_headers_in_t      headers_in;
@@ -139,9 +139,9 @@
 
 typedef struct {
     ngx_peer_connection_t            peer;
-    int                              status;
+    ngx_uint_t                       status;
     ngx_str_t                        status_line;
-    int                              method;
+    ngx_uint_t                       method;
 
     ngx_output_chain_ctx_t          *output_chain_ctx;
     ngx_event_pipe_t                *event_pipe;
@@ -175,23 +175,23 @@
 
 
     /* used to parse an upstream HTTP header */
-    int                           status;
-    char                         *status_start;
-    char                         *status_end;
-    int                           status_count;
-    int                           parse_state;
+    ngx_uint_t                    status;
+    u_char                       *status_start;
+    u_char                       *status_end;
+    ngx_uint_t                    status_count;
+    ngx_uint_t                    parse_state;
 
     ngx_http_proxy_state_t       *state;
     ngx_array_t                   states;    /* of ngx_http_proxy_state_t */
 
-    char                         *action;
+    u_char                       *action;
     ngx_http_log_ctx_t           *saved_ctx;
     ngx_log_handler_pt            saved_handler;
 };
 
 
 typedef struct {
-    u_int                  connection;
+    ngx_uint_t             connection;
     ngx_http_proxy_ctx_t  *proxy;
 } ngx_http_proxy_log_ctx_t;
 
diff --git a/src/http/modules/proxy/ngx_http_proxy_header.c b/src/http/modules/proxy/ngx_http_proxy_header.c
index 0c44a52..66a6bfe 100644
--- a/src/http/modules/proxy/ngx_http_proxy_header.c
+++ b/src/http/modules/proxy/ngx_http_proxy_header.c
@@ -11,7 +11,7 @@
 int ngx_http_proxy_copy_header(ngx_http_proxy_ctx_t *p,
                                ngx_http_proxy_headers_in_t *headers_in)
 {
-    int                  i;
+    ngx_uint_t           i;
     ngx_table_elt_t     *ho, *h;
     ngx_http_request_t  *r;
 
@@ -97,7 +97,7 @@
 static int ngx_http_proxy_rewrite_location_header(ngx_http_proxy_ctx_t *p,
                                                   ngx_table_elt_t *loc)
 {
-    char                            *last;
+    u_char                          *last;
     ngx_http_request_t              *r;
     ngx_http_proxy_upstream_conf_t  *uc;
 
diff --git a/src/http/modules/proxy/ngx_http_proxy_parse.c b/src/http/modules/proxy/ngx_http_proxy_parse.c
index a697958..5e76dc0 100644
--- a/src/http/modules/proxy/ngx_http_proxy_parse.c
+++ b/src/http/modules/proxy/ngx_http_proxy_parse.c
@@ -7,8 +7,8 @@
 
 int ngx_http_proxy_parse_status_line(ngx_http_proxy_ctx_t *p)
 {
-    char   ch;
-    char  *pos;
+    u_char   ch;
+    u_char  *pos;
     enum  {
         sw_start = 0,
         sw_H,
diff --git a/src/http/modules/proxy/ngx_http_proxy_upstream.c b/src/http/modules/proxy/ngx_http_proxy_upstream.c
index dc55050..7704cb1 100644
--- a/src/http/modules/proxy/ngx_http_proxy_upstream.c
+++ b/src/http/modules/proxy/ngx_http_proxy_upstream.c
@@ -98,8 +98,8 @@
 
 static ngx_chain_t *ngx_http_proxy_create_request(ngx_http_proxy_ctx_t *p)
 {
-    int                              i;
     size_t                           len;
+    ngx_uint_t                       i;
     ngx_hunk_t                      *h;
     ngx_chain_t                     *chain;
     ngx_table_elt_t                 *header;