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404 lines
12 KiB
C
404 lines
12 KiB
C
/* Provide a sys/socket header file for systems lacking it (read: MinGW)
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and for systems where it is incomplete.
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Copyright (C) 2005-2008 Free Software Foundation, Inc.
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Written by Simon Josefsson.
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* This file is supposed to be used on platforms that lack <sys/socket.h>,
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on platforms where <sys/socket.h> cannot be included standalone, and on
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platforms where <sys/socket.h> does not provide all necessary definitions.
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It is intended to provide definitions and prototypes needed by an
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application. */
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#ifndef _GL_SYS_SOCKET_H
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#if @HAVE_SYS_SOCKET_H@
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# if __GNUC__ >= 3
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@PRAGMA_SYSTEM_HEADER@
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# endif
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/* On many platforms, <sys/socket.h> assumes prior inclusion of
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<sys/types.h>. */
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# include <sys/types.h>
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/* The include_next requires a split double-inclusion guard. */
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# @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
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#endif
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#ifndef _GL_SYS_SOCKET_H
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#define _GL_SYS_SOCKET_H
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#if @HAVE_SYS_SOCKET_H@
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/* A platform that has <sys/socket.h>. */
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/* For shutdown(). */
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# if !defined SHUT_RD
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# define SHUT_RD 0
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# endif
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# if !defined SHUT_WR
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# define SHUT_WR 1
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# endif
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# if !defined SHUT_RDWR
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# define SHUT_RDWR 2
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# endif
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#else
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# ifdef __CYGWIN__
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# error "Cygwin does have a sys/socket.h, doesn't it?!?"
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# endif
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/* A platform that lacks <sys/socket.h>.
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Currently only MinGW is supported. See the gnulib manual regarding
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Windows sockets. MinGW has the header files winsock2.h and
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ws2tcpip.h that declare the sys/socket.h definitions we need. Note
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that you can influence which definitions you get by setting the
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WINVER symbol before including these two files. For example,
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getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
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symbol is set indiriectly through WINVER). You can set this by
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adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
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code may not run on older Windows releases then. My Windows 2000
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box was not able to run the code, for example. The situation is
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slightly confusing because:
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http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
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suggests that getaddrinfo should be available on all Windows
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releases. */
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# if @HAVE_WINSOCK2_H@
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# include <winsock2.h>
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# endif
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# if @HAVE_WS2TCPIP_H@
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# include <ws2tcpip.h>
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# endif
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/* For shutdown(). */
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# if !defined SHUT_RD && defined SD_RECEIVE
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# define SHUT_RD SD_RECEIVE
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# endif
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# if !defined SHUT_WR && defined SD_SEND
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# define SHUT_WR SD_SEND
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# endif
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# if !defined SHUT_RDWR && defined SD_BOTH
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# define SHUT_RDWR SD_BOTH
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# endif
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/* The definition of GL_LINK_WARNING is copied here. */
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# if @HAVE_WINSOCK2_H@
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/* Include headers needed by the emulation code. */
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# include <sys/types.h>
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# include <io.h>
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typedef int socklen_t;
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# endif
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# ifdef __cplusplus
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extern "C" {
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# endif
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# if @HAVE_WINSOCK2_H@
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/* Re-define FD_ISSET to avoid a WSA call while we are not using
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network sockets. */
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static inline int
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rpl_fd_isset (SOCKET fd, fd_set * set)
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{
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u_int i;
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if (set == NULL)
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return 0;
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for (i = 0; i < set->fd_count; i++)
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if (set->fd_array[i] == fd)
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return 1;
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return 0;
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}
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# undef FD_ISSET
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# define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
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# endif
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/* Wrap everything else to use libc file descriptors for sockets. */
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# if @HAVE_WINSOCK2_H@ && !defined _GL_UNISTD_H
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# undef close
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# define close close_used_without_including_unistd_h
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# endif
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# if @HAVE_WINSOCK2_H@ && !defined _GL_UNISTD_H
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# undef gethostname
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# define gethostname gethostname_used_without_including_unistd_h
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# endif
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# if @GNULIB_SOCKET@
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# if @HAVE_WINSOCK2_H@
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# undef socket
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# define socket rpl_socket
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extern int rpl_socket (int, int, int protocol);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef socket
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# define socket socket_used_without_requesting_gnulib_module_socket
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# elif defined GNULIB_POSIXCHECK
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# undef socket
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# define socket(d,t,p) \
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(GL_LINK_WARNING ("socket is not always POSIX compliant - " \
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"use gnulib module socket for portability"), \
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socket (d, t, p))
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# endif
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# if @GNULIB_CONNECT@
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# if @HAVE_WINSOCK2_H@
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# undef connect
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# define connect rpl_connect
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extern int rpl_connect (int, struct sockaddr *, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef connect
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# define connect socket_used_without_requesting_gnulib_module_connect
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# elif defined GNULIB_POSIXCHECK
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# undef connect
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# define connect(s,a,l) \
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(GL_LINK_WARNING ("connect is not always POSIX compliant - " \
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"use gnulib module connect for portability"), \
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connect (s, a, l))
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# endif
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# if @GNULIB_ACCEPT@
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# if @HAVE_WINSOCK2_H@
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# undef accept
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# define accept rpl_accept
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extern int rpl_accept (int, struct sockaddr *, int *);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef accept
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# define accept accept_used_without_requesting_gnulib_module_accept
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# elif defined GNULIB_POSIXCHECK
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# undef accept
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# define accept(s,a,l) \
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(GL_LINK_WARNING ("accept is not always POSIX compliant - " \
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"use gnulib module accept for portability"), \
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accept (s, a, l))
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# endif
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# if @GNULIB_BIND@
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# if @HAVE_WINSOCK2_H@
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# undef bind
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# define bind rpl_bind
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extern int rpl_bind (int, struct sockaddr *, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef bind
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# define bind bind_used_without_requesting_gnulib_module_bind
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# elif defined GNULIB_POSIXCHECK
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# undef bind
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# define bind(s,a,l) \
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(GL_LINK_WARNING ("bind is not always POSIX compliant - " \
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"use gnulib module bind for portability"), \
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bind (s, a, l))
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# endif
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# if @GNULIB_GETPEERNAME@
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# if @HAVE_WINSOCK2_H@
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# undef getpeername
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# define getpeername rpl_getpeername
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extern int rpl_getpeername (int, struct sockaddr *, int *);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef getpeername
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# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
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# elif defined GNULIB_POSIXCHECK
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# undef getpeername
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# define getpeername(s,a,l) \
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(GL_LINK_WARNING ("getpeername is not always POSIX compliant - " \
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"use gnulib module getpeername for portability"), \
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getpeername (s, a, l))
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# endif
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# if @GNULIB_GETSOCKNAME@
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# if @HAVE_WINSOCK2_H@
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# undef getsockname
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# define getsockname rpl_getsockname
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extern int rpl_getsockname (int, struct sockaddr *, int *);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef getsockname
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# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
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# elif defined GNULIB_POSIXCHECK
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# undef getsockname
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# define getsockname(s,a,l) \
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(GL_LINK_WARNING ("getsockname is not always POSIX compliant - " \
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"use gnulib module getsockname for portability"), \
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getsockname (s, a, l))
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# endif
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# if @GNULIB_GETSOCKOPT@
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# if @HAVE_WINSOCK2_H@
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# undef getsockopt
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# define getsockopt rpl_getsockopt
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extern int rpl_getsockopt (int, int, int, void *, int *);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef getsockopt
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# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
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# elif defined GNULIB_POSIXCHECK
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# undef getsockopt
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# define getsockopt(s,lvl,o,v,l) \
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(GL_LINK_WARNING ("getsockopt is not always POSIX compliant - " \
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"use gnulib module getsockopt for portability"), \
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getsockopt (s, lvl, o, v, l))
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# endif
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# if @GNULIB_LISTEN@
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# if @HAVE_WINSOCK2_H@
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# undef listen
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# define listen rpl_listen
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extern int rpl_listen (int, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef listen
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# define listen listen_used_without_requesting_gnulib_module_listen
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# elif defined GNULIB_POSIXCHECK
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# undef listen
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# define listen(s,b) \
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(GL_LINK_WARNING ("listen is not always POSIX compliant - " \
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"use gnulib module listen for portability"), \
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listen (s, b))
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# endif
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# if @GNULIB_RECV@
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# if @HAVE_WINSOCK2_H@
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# undef recv
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# define recv rpl_recv
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extern int rpl_recv (int, void *, int, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef recv
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# define recv recv_used_without_requesting_gnulib_module_recv
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# elif defined GNULIB_POSIXCHECK
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# undef recv
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# define recv(s,b,n,f) \
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(GL_LINK_WARNING ("recv is not always POSIX compliant - " \
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"use gnulib module recv for portability"), \
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recv (s, b, n, f))
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# endif
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# if @GNULIB_SEND@
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# if @HAVE_WINSOCK2_H@
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# undef send
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# define send rpl_send
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extern int rpl_send (int, const void *, int, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef send
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# define send send_used_without_requesting_gnulib_module_send
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# elif defined GNULIB_POSIXCHECK
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# undef send
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# define send(s,b,n,f) \
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(GL_LINK_WARNING ("send is not always POSIX compliant - " \
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"use gnulib module send for portability"), \
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send (s, b, n, f))
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# endif
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# if @GNULIB_RECVFROM@
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# if @HAVE_WINSOCK2_H@
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# undef recvfrom
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# define recvfrom rpl_recvfrom
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extern int rpl_recvfrom (int, void *, int, int, struct sockaddr *, int *);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef recvfrom
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# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
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# elif defined GNULIB_POSIXCHECK
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# undef recvfrom
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# define recvfrom(s,b,n,f,a,l) \
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(GL_LINK_WARNING ("recvfrom is not always POSIX compliant - " \
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"use gnulib module recvfrom for portability"), \
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recvfrom (s, b, n, f, a, l))
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# endif
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# if @GNULIB_SENDTO@
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# if @HAVE_WINSOCK2_H@
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# undef sendto
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# define sendto rpl_sendto
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extern int rpl_sendto (int, const void *, int, int, struct sockaddr *, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef sendto
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# define sendto sendto_used_without_requesting_gnulib_module_sendto
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# elif defined GNULIB_POSIXCHECK
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# undef sendto
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# define sendto(s,b,n,f,a,l) \
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(GL_LINK_WARNING ("sendto is not always POSIX compliant - " \
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"use gnulib module sendto for portability"), \
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sendto (s, b, n, f, a, l))
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# endif
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# if @GNULIB_SETSOCKOPT@
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# if @HAVE_WINSOCK2_H@
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# undef setsockopt
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# define setsockopt rpl_setsockopt
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extern int rpl_setsockopt (int, int, int, const void *, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef setsockopt
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# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
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# elif defined GNULIB_POSIXCHECK
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# undef setsockopt
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# define setsockopt(s,lvl,o,v,l) \
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(GL_LINK_WARNING ("setsockopt is not always POSIX compliant - " \
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"use gnulib module setsockopt for portability"), \
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setsockopt (s, lvl, o, v, l))
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# endif
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# if @GNULIB_SHUTDOWN@
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# if @HAVE_WINSOCK2_H@
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# undef shutdown
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# define shutdown rpl_shutdown
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extern int rpl_shutdown (int, int);
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# endif
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# elif @HAVE_WINSOCK2_H@
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# undef shutdown
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# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown
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# elif defined GNULIB_POSIXCHECK
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# undef shutdown
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# define shutdown(s,h) \
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(GL_LINK_WARNING ("shutdown is not always POSIX compliant - " \
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"use gnulib module shutdown for portability"), \
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shutdown (s, h))
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# endif
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# if @HAVE_WINSOCK2_H@
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# undef select
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# define select select_used_without_including_sys_select_h
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# endif
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# ifdef __cplusplus
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}
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# endif
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#endif /* HAVE_SYS_SOCKET_H */
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#endif /* _GL_SYS_SOCKET_H */
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#endif /* _GL_SYS_SOCKET_H */
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