65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
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/* @(#)socket.h 1.3 12/11/14 Copyright 2009-2012 J. Schilling */
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/*
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* Socket abstraction
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*
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* Copyright (c) 2009-2012 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#ifndef _SCHILY_SOCKET_H
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#define _SCHILY_SOCKET_H
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#ifndef _SCHILY_MCONFIG_H
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#include <schily/mconfig.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#ifndef _INCL_SYS_SOCKET_H
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#include <sys/socket.h>
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#define _INCL_SYS_SOCKET_H
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#endif
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/*
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* Compatibility defines for UNIX/POSIX:
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*
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* Win32 defines a socket layer in winsock.h that is not POSIX compliant.
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* The functions socket() and accept() return an "unsigned int" instead of just
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* an "int". As a result, an error return from socket() and accept() cannot be
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* -1 but is INVALID_SOCKET. All functions from the Win32 socket layer except
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* socket() and accept() return -1 on error.
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* Since a socket is not a file descriptor on Win32, we cannot call close()
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* but need to call closesocket().
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* If we like to write software that compiles on a Win32 system without a
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* POSIX layer, we need use the following definitions as a workaround even
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* for UNIX/POSIX systems.
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*/
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#define SOCKET int /* The socket type on UNIX/POSIX */
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#define INVALID_SOCKET (-1) /* Error return code for socket()/accept() */
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#define closesocket close /* Use instead of close(s) for Win32 compat */
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#else /* On a non-POSIX system: */
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/*
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* If we are on a Win32 system without a POSIX layer, we would need to include
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* winsock.h but this includes definitions that cause compatibility problems.
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* For this reason, we instead include our windows.h that contains the needed
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* workaround.
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*/
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#ifdef HAVE_WINDOWS_H
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#include <schily/windows.h>
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#endif /* HAVE_WINDOWS_H */
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#endif
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#endif /* _SCHILY_SOCKET_H */
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