diff options
Diffstat (limited to 'lib/roken/sendmsg.c')
| -rw-r--r-- | lib/roken/sendmsg.c | 105 |
1 files changed, 94 insertions, 11 deletions
diff --git a/lib/roken/sendmsg.c b/lib/roken/sendmsg.c index e7478bfe2d69..c6853772ad78 100644 --- a/lib/roken/sendmsg.c +++ b/lib/roken/sendmsg.c @@ -1,23 +1,23 @@ /* - * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan + * Copyright (c) 1995, 1996, 1997, 1998, 1999 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. 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 @@ -31,15 +31,14 @@ * SUCH DAMAGE. */ -#ifdef HAVE_CONFIG_H #include <config.h> -RCSID("$Id: sendmsg.c 14773 2005-04-12 11:29:18Z lha $"); -#endif #include "roken.h" -ssize_t ROKEN_LIB_FUNCTION -sendmsg(int s, const struct msghdr *msg, int flags) +#ifndef _WIN32 + +ROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL +sendmsg(rk_socket_t s, const struct msghdr *msg, int flags) { ssize_t ret; size_t tot = 0; @@ -63,3 +62,87 @@ sendmsg(int s, const struct msghdr *msg, int flags) free (buf); return ret; } + +#else /* _WIN32 */ + +/*********************************************************************** + * Copyright (c) 2009, Secure Endpoints Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - 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. + * + * - Neither the name of Secure Endpoints Inc. 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT HOLDER 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. + * + **********************************************************************/ + +/** + * Implementation of sendmsg() for WIN32 + * + * We are using a contrived definition of msghdr which actually uses + * an array of ::_WSABUF structures instead of ::iovec . This allows + * us to call WSASend directly using the given ::msghdr instead of + * having to allocate another array of ::_WSABUF and copying data for + * each call. + * + * Limitations: + * + * - msg->msg_name is ignored. So is msg->control. + * - WSASend() only supports ::MSG_DONTROUTE, ::MSG_OOB and + * ::MSG_PARTIAL. + * + * @param[in] s The socket to use. + * @param[in] msg The message + * @param[in] flags Flags. A combination of ::MSG_DONTROUTE, + * ::MSG_OOB and ::MSG_PARTIAL + * + * @return The number of bytes sent, on success. Or -1 on error. + */ +ROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL +sendmsg_w32(rk_socket_t s, const struct msghdr * msg, int flags) +{ + int srv; + DWORD num_bytes_sent = 0; + + /* TODO: For _WIN32_WINNT >= 0x0600 we can use WSASendMsg using + WSAMSG which is a much more direct analogue to sendmsg(). */ + + srv = WSASend(s, msg->msg_iov, msg->msg_iovlen, + &num_bytes_sent, flags, NULL, NULL); + + if (srv == 0) + return (int) num_bytes_sent; + + /* srv == SOCKET_ERROR and WSAGetLastError() == WSA_IO_PENDING + indicates that a non-blocking transfer has been scheduled. + We'll have to check for that if we ever support non-blocking + I/O. */ + + return -1; +} + +#endif /* !_WIN32 */ |