From b10126c7c2d78edf2c51a6997a3842508ae1d14d Mon Sep 17 00:00:00 2001 From: Assar Westerlund Date: Thu, 25 Dec 1997 14:15:40 +0000 Subject: [PATCH] from strcpy_truncate branch git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4240 ec53bebd-3082-4978-b11e-865c3cabbd6b --- lib/roken/recvmsg.c | 73 +++++++++++++++++++++++++++++++++++++++++++++ lib/roken/sendmsg.c | 70 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 143 insertions(+) create mode 100644 lib/roken/recvmsg.c create mode 100644 lib/roken/sendmsg.c diff --git a/lib/roken/recvmsg.c b/lib/roken/recvmsg.c new file mode 100644 index 000000000..d8681437b --- /dev/null +++ b/lib/roken/recvmsg.c @@ -0,0 +1,73 @@ +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Kungliga Tekniska + * Högskolan and its contributors. + * + * 4. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include +RCSID("$Id$"); +#endif + +#include "roken.h" + +ssize_t +recvmsg(int s, struct msghdr *msg, int flags) +{ + ssize_t ret, nb; + size_t tot = 0; + int i; + char *buf, *p; + struct iovec *iov = msg->msg_iov; + + for(i = 0; i < msg->msg_iovlen; ++i) + tot += iov[i].iov_len; + buf = malloc(tot); + if (buf == NULL) { + errno = ENOMEM; + return -1; + } + nb = ret = recvfrom (s, buf, tot, flags, msg->msg_name, &msg->msg_namelen); + p = buf; + while (nb > 0) { + ssize_t cnt = min(nb, iov->iov_len); + + memcpy (iov->iov_base, p, cnt); + p += cnt; + nb -= cnt; + } + free(buf); + return ret; +} diff --git a/lib/roken/sendmsg.c b/lib/roken/sendmsg.c new file mode 100644 index 000000000..9f000fb72 --- /dev/null +++ b/lib/roken/sendmsg.c @@ -0,0 +1,70 @@ +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Kungliga Tekniska + * Högskolan and its contributors. + * + * 4. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include +RCSID("$Id$"); +#endif + +#include "roken.h" + +ssize_t +sendmsg(int s, const struct msghdr *msg, int flags) +{ + ssize_t ret; + size_t tot = 0; + int i; + char *buf, *p; + struct iovec *iov = msg->msg_iov; + + for(i = 0; i < msg->msg_iovlen; ++i) + tot += iov[i].iov_len; + buf = malloc(tot); + if (buf == NULL) { + errno = ENOMEM; + return -1; + } + p = buf; + for (i = 0; i < msg->msg_iovlen; ++i) { + memcpy (p, iov[i].iov_base, iov[i].iov_len); + p += iov[i].iov_len; + } + ret = sendto (s, buf, tot, flags, msg->msg_name, msg->msg_namelen); + free (buf); + return ret; +}