1# sockpfaf.m4 serial 8 2dnl Copyright (C) 2004, 2006, 2009-2014 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) 8dnl and some common address families (AF_INET, AF_INET6, ...). 9dnl This test assumes that a system supports an address family if and only if 10dnl it supports the corresponding protocol family. 11 12dnl From Bruno Haible. 13 14AC_DEFUN([gl_SOCKET_FAMILIES], 15[ 16 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) 17 AC_CHECK_HEADERS_ONCE([netinet/in.h]) 18 19 AC_MSG_CHECKING([for IPv4 sockets]) 20 AC_CACHE_VAL([gl_cv_socket_ipv4], 21 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 22#ifdef HAVE_SYS_SOCKET_H 23#include <sys/socket.h> 24#endif 25#ifdef HAVE_NETINET_IN_H 26#include <netinet/in.h> 27#endif 28#ifdef HAVE_WINSOCK2_H 29#include <winsock2.h> 30#endif]], 31[[int x = AF_INET; struct in_addr y; struct sockaddr_in z; 32 if (&x && &y && &z) return 0;]])], 33 gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) 34 AC_MSG_RESULT([$gl_cv_socket_ipv4]) 35 if test $gl_cv_socket_ipv4 = yes; then 36 AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.]) 37 fi 38 39 AC_MSG_CHECKING([for IPv6 sockets]) 40 AC_CACHE_VAL([gl_cv_socket_ipv6], 41 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 42#ifdef HAVE_SYS_SOCKET_H 43#include <sys/socket.h> 44#endif 45#ifdef HAVE_NETINET_IN_H 46#include <netinet/in.h> 47#endif 48#ifdef HAVE_WINSOCK2_H 49#include <winsock2.h> 50#endif 51#ifdef HAVE_WS2TCPIP_H 52#include <ws2tcpip.h> 53#endif]], 54[[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; 55 if (&x && &y && &z) return 0;]])], 56 gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) 57 AC_MSG_RESULT([$gl_cv_socket_ipv6]) 58 if test $gl_cv_socket_ipv6 = yes; then 59 AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.]) 60 fi 61]) 62 63AC_DEFUN([gl_SOCKET_FAMILY_UNIX], 64[ 65 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) 66 AC_CHECK_HEADERS_ONCE([sys/un.h]) 67 68 AC_MSG_CHECKING([for UNIX domain sockets]) 69 AC_CACHE_VAL([gl_cv_socket_unix], 70 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 71#ifdef HAVE_SYS_SOCKET_H 72#include <sys/socket.h> 73#endif 74#ifdef HAVE_SYS_UN_H 75#include <sys/un.h> 76#endif 77#ifdef HAVE_WINSOCK2_H 78#include <winsock2.h> 79#endif]], 80[[int x = AF_UNIX; struct sockaddr_un y; 81 if (&x && &y) return 0;]])], 82 gl_cv_socket_unix=yes, gl_cv_socket_unix=no)]) 83 AC_MSG_RESULT([$gl_cv_socket_unix]) 84 if test $gl_cv_socket_unix = yes; then 85 AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if <sys/socket.h> defines AF_UNIX.]) 86 fi 87]) 88