1 /* 2 * Copyright (C) 2008 Edwin Groothuis. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #define RP_NONE 0 30 #define RP_RECVFROM -1 31 #define RP_TOOSMALL -2 32 #define RP_ERROR -3 33 #define RP_WRONGSOURCE -4 34 #define RP_TIMEOUT -5 35 #define RP_TOOBIG -6 36 37 const char *errtomsg(int); 38 void send_error(int peer, int); 39 int send_wrq(int peer, char *, char *); 40 int send_rrq(int peer, char *, char *); 41 int send_oack(int peer); 42 int send_ack(int peer, unsigned short); 43 int send_data(int peer, uint16_t, char *, int); 44 int receive_packet(int peer, char *, int, struct sockaddr_storage *, int); 45 46 extern struct sockaddr_storage peer_sock; 47 extern struct sockaddr_storage me_sock; 48