downgrade gravity of getsockname() errors

src/http/modules/ngx_http_userid_filter_module.c

diff --git a/src/http/modules/ngx_http_userid_filter_module.c b/src/http/modules/ngx_http_userid_filter_module.c
index c341a08..b316630 100644
--- a/src/http/modules/ngx_http_userid_filter_module.c
+++ b/src/http/modules/ngx_http_userid_filter_module.c
@@ -348,10 +348,12 @@
                 if (r->in_addr == 0) {
                     slen = sizeof(struct sockaddr_in);
                     if (getsockname(r->connection->fd,
-                                    (struct sockaddr *) &sin, &slen) == -1)
+                                    (struct sockaddr *) &sin, &slen)
+                        == -1)
                     {
-                        ngx_log_error(NGX_LOG_CRIT, r->connection->log,
-                                      ngx_socket_errno, "getsockname() failed");
+                        ngx_connection_error(r->connection, ngx_socket_errno,
+                                             "getsockname() failed");
+                        return NGX_ERROR;
                     }
 
                     r->in_addr = sin.sin_addr.s_addr;

src/http/ngx_http_variables.c

diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index ecf20c3..1201458 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -749,8 +749,7 @@
     if (r->in_addr == 0) {
         len = sizeof(struct sockaddr_in);
         if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
-            ngx_log_error(NGX_LOG_CRIT, c->log,
-                          ngx_socket_errno, "getsockname() failed");
+            ngx_connection_error(c, ngx_socket_errno, "getsockname() failed");
             return NGX_ERROR;
         }