sin2              856 core/ngx_cycle.c     struct sockaddr_in   *sin1, *sin2;
sin2              904 core/ngx_cycle.c         sin2 = (struct sockaddr_in *) sa2;
sin2              906 core/ngx_cycle.c         if (sin1->sin_port != sin2->sin_port) {
sin2              910 core/ngx_cycle.c         if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {