95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2010-2019 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef UTIL_H_
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#define UTIL_H_
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <inttypes.h>
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#ifdef _WIN32
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#include <winsock2.h>
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#include <windows.h>
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#else
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#include <sys/socket.h>
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#include <netinet/tcp.h>
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#include <netinet/in.h>
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#endif
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#if defined(_WIN32)
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# define SLIRP_PACKED __attribute__((gcc_struct, packed))
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#else
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# define SLIRP_PACKED __attribute__((packed))
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#endif
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#ifdef _WIN32
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int slirp_closesocket(int fd);
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int slirp_ioctlsocket(int fd, int req, void *val);
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#ifndef WITH_QEMU
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int inet_aton(const char *cp, struct in_addr *ia);
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#endif
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#define slirp_getsockopt(sockfd, level, optname, optval, optlen) \
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getsockopt(sockfd, level, optname, (void *)optval, optlen)
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#define slirp_setsockopt(sockfd, level, optname, optval, optlen) \
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setsockopt(sockfd, level, optname, (const void *)optval, optlen)
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#define slirp_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
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#else
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#define slirp_setsockopt setsockopt
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#define slirp_getsockopt getsockopt
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#define slirp_recv recv
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#define slirp_closesocket close
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#define slirp_ioctlsocket ioctl
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#endif
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int slirp_socket(int domain, int type, int protocol);
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void slirp_set_nonblock(int fd);
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static inline int slirp_socket_set_nodelay(int fd)
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{
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int v = 1;
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return slirp_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &v, sizeof(v));
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}
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static inline int slirp_socket_set_fast_reuse(int fd)
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{
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#ifndef _WIN32
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int v = 1;
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return slirp_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &v, sizeof(v));
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#else
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/* Enabling the reuse of an endpoint that was used by a socket still in
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* TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
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* fast reuse is the default and SO_REUSEADDR does strange things. So we
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* don't have to do anything here. More info can be found at:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
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return 0;
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#endif
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}
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#endif
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