/* * Ouroboros - Copyright (C) 2016 - 2017 * * A simple echo application * * Sander Vrijders <sander.vrijders@intec.ugent.be> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <ouroboros/dev.h> #include <stdlib.h> int client_main(void) { int fd = 0; int result = 0; char buf[BUF_SIZE]; char * message = "Client says hi!"; ssize_t count = 0; fd = flow_alloc("echo", NULL); if (fd < 0) { printf("Failed to allocate flow.\n"); return -1; } result = flow_alloc_res(fd); if (result < 0) { printf("Flow allocation refused.\n"); flow_dealloc(fd); return -1; } if (flow_write(fd, message, strlen(message) + 1) == -1) { printf("Failed to write SDU.\n"); flow_dealloc(fd); return -1; } count = flow_read(fd, buf, BUF_SIZE); if (count < 0) { printf("Failed to read SDU.\n"); flow_dealloc(fd); return -1; } printf("Server replied with %.*s\n", (int) count, buf); flow_dealloc(fd); return 0; }