1295367Sdes/* 2276707Sdes * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska H�gskolan 3276707Sdes * (Royal Institute of Technology, Stockholm, Sweden). 4276707Sdes * All rights reserved. 5276707Sdes * 6276707Sdes * Redistribution and use in source and binary forms, with or without 7276707Sdes * modification, are permitted provided that the following conditions 8276707Sdes * are met: 9276707Sdes * 10276707Sdes * 1. Redistributions of source code must retain the above copyright 11276707Sdes * notice, this list of conditions and the following disclaimer. 12276707Sdes * 13276707Sdes * 2. Redistributions in binary form must reproduce the above copyright 14276707Sdes * notice, this list of conditions and the following disclaimer in the 15276707Sdes * documentation and/or other materials provided with the distribution. 16276707Sdes * 17276707Sdes * 3. Neither the name of the Institute nor the names of its contributors 18276707Sdes * may be used to endorse or promote products derived from this software 19276707Sdes * without specific prior written permission. 20276707Sdes * 21276707Sdes * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22276707Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23276707Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24276707Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25276707Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26276707Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27276707Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28276707Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29276707Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30276707Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31276707Sdes * SUCH DAMAGE. 32276707Sdes */ 33276707Sdes 34276707Sdes#ifdef HAVE_CONFIG_H 35276707Sdes#include <config.h> 36276707SdesRCSID("$Id: recvmsg.c 14773 2005-04-12 11:29:18Z lha $"); 37276707Sdes#endif 38276707Sdes 39276707Sdes#include "roken.h" 40276707Sdes 41276707Sdesssize_t ROKEN_LIB_FUNCTION 42276707Sdesrecvmsg(int s, struct msghdr *msg, int flags) 43276707Sdes{ 44276707Sdes ssize_t ret, nb; 45276707Sdes size_t tot = 0; 46276707Sdes int i; 47276707Sdes char *buf, *p; 48276707Sdes struct iovec *iov = msg->msg_iov; 49276707Sdes 50276707Sdes for(i = 0; i < msg->msg_iovlen; ++i) 51276707Sdes tot += iov[i].iov_len; 52276707Sdes buf = malloc(tot); 53276707Sdes if (tot != 0 && buf == NULL) { 54276707Sdes errno = ENOMEM; 55276707Sdes return -1; 56276707Sdes } 57276707Sdes nb = ret = recvfrom (s, buf, tot, flags, msg->msg_name, &msg->msg_namelen); 58276707Sdes p = buf; 59276707Sdes while (nb > 0) { 60276707Sdes ssize_t cnt = min(nb, iov->iov_len); 61276707Sdes 62276707Sdes memcpy (iov->iov_base, p, cnt); 63276707Sdes p += cnt; 64276707Sdes nb -= cnt; 65276707Sdes ++iov; 66276707Sdes } 67276707Sdes free(buf); 68276707Sdes return ret; 69276707Sdes} 70276707Sdes