131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/*
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* net_sys.h -- common network system header.
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*
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* Copyright (C) 2007-2012 O.Sezer <sezero@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef spingle__net_sys_h
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#define spingle__net_sys_h
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#include <sys/types.h>
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#include <errno.h>
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#include <stddef.h>
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#include <limits.h>
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#if PLATFORM_IS(BSD) || PLATFORM_IS(OSX)
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/* struct sockaddr has uint8_t sa_len as the first member in BSD
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* variants and the family member is also an uint8_t instead of an
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* uint16_t. This should matter only when PLATFORM_UNIX is defined,
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* however, checking for the offset of sa_family in every platform that
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* provide a struct sockaddr doesn't hurt either (see down below for the
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* compile time asserts.) */
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/* FIXME : GET RID OF THIS ABOMINATION !!! */
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#define HAVE_SA_LEN 1
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#define SA_FAM_OFFSET 1
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#else
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#undef HAVE_SA_LEN
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#define SA_FAM_OFFSET 0
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#endif /* BSD, sockaddr */
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/* unix includes and compatibility macros */
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#if PLATFORM_IS_UNIX
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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typedef int32_t sys_socket_t;
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#define INVALID_SOCKET (-1)
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#define SOCKET_ERROR (-1)
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#define SOCKETERRNO errno
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#define ioctlsocket ioctl
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#define closesocket close
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#define selectsocket select
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#define IOCTLARG_P(x) /* (char *) */ x
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#define NET_EWOULDBLOCK EWOULDBLOCK
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#define NET_ECONNREFUSED ECONNREFUSED
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#define socketerror(x) strerror((x))
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_Static_assert(offsetof(struct sockaddr, sa_family) == SA_FAM_OFFSET,
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"HAVE_SA_LEN not defined correctly");
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#endif /* PLATFORM_IS_UNIX */
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/* windows includes and compatibility macros */
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#if PLATFORM_IS(WINDOWS)
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/* NOTE: winsock[2].h already includes windows.h */
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#if !defined(_USE_WINSOCK2)
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#include <winsock.h>
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#else
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#endif
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/* there is no in_addr_t on windows: define it as
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the type of the S_addr of in_addr structure */
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typedef u_long in_addr_t; /* uint32_t */
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/* on windows, socklen_t is to be a winsock2 thing */
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#if !defined(IP_MSFILTER_SIZE)
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typedef int32_t socklen_t;
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#endif /* socklen_t type */
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typedef SOCKET sys_socket_t;
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#define selectsocket select
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#define IOCTLARG_P(x) /* (u_long *) */ x
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#define SOCKETERRNO WSAGetLastError()
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#define NET_EWOULDBLOCK WSAEWOULDBLOCK
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#define NET_ECONNREFUSED WSAECONNREFUSED
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/* must #include "wsaerror.h" for this : */
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#define socketerror(x) __WSAE_StrError((x))
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_Static_assert(offsetof(struct sockaddr, sa_family) == SA_FAM_OFFSET,
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"HAVE_SA_LEN not defined correctly");
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#endif /* end of windows stuff */
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/* macros which may still be missing */
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#if !defined(INADDR_NONE)
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#define INADDR_NONE ((in_addr_t) 0xffffffff)
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#endif /* INADDR_NONE */
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#if !defined(INADDR_LOOPBACK)
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#define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* 127.0.0.1 */
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#endif /* INADDR_LOOPBACK */
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#if !defined(MAXHOSTNAMELEN)
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/* SUSv2 guarantees that `Host names are limited to 255 bytes'.
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POSIX 1003.1-2001 guarantees that `Host names (not including
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the terminating NUL) are limited to HOST_NAME_MAX bytes'. */
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#define MAXHOSTNAMELEN 256
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#endif /* MAXHOSTNAMELEN */
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#endif
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