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1 | # sockpfaf.m4 serial 9 |
2 | dnl Copyright (C) 2004, 2006, 2009-2019 Free Software Foundation, Inc. | |
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3 | dnl This file is free software; the Free Software Foundation |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) | |
8 | dnl and some common address families (AF_INET, AF_INET6, ...). | |
9 | dnl This test assumes that a system supports an address family if and only if | |
10 | dnl it supports the corresponding protocol family. | |
11 | ||
12 | dnl From Bruno Haible. | |
13 | ||
14 | AC_DEFUN([gl_SOCKET_FAMILIES], | |
15 | [ | |
16 | AC_REQUIRE([gl_HEADER_SYS_SOCKET]) | |
17 | AC_CHECK_HEADERS_ONCE([netinet/in.h]) | |
18 | ||
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19 | AC_CACHE_CHECK([for IPv4 sockets], |
20 | [gl_cv_socket_ipv4], | |
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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)]) | |
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34 | if test $gl_cv_socket_ipv4 = yes; then |
35 | AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.]) | |
36 | fi | |
37 | ||
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38 | AC_CACHE_CHECK([for IPv6 sockets], |
39 | [gl_cv_socket_ipv6], | |
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40 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
41 | #ifdef HAVE_SYS_SOCKET_H | |
42 | #include <sys/socket.h> | |
43 | #endif | |
44 | #ifdef HAVE_NETINET_IN_H | |
45 | #include <netinet/in.h> | |
46 | #endif | |
47 | #ifdef HAVE_WINSOCK2_H | |
48 | #include <winsock2.h> | |
49 | #endif | |
50 | #ifdef HAVE_WS2TCPIP_H | |
51 | #include <ws2tcpip.h> | |
52 | #endif]], | |
53 | [[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; | |
54 | if (&x && &y && &z) return 0;]])], | |
55 | gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) | |
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56 | if test $gl_cv_socket_ipv6 = yes; then |
57 | AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.]) | |
58 | fi | |
59 | ]) | |
60 | ||
61 | AC_DEFUN([gl_SOCKET_FAMILY_UNIX], | |
62 | [ | |
63 | AC_REQUIRE([gl_HEADER_SYS_SOCKET]) | |
64 | AC_CHECK_HEADERS_ONCE([sys/un.h]) | |
65 | ||
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66 | AC_CACHE_CHECK([for UNIX domain sockets], |
67 | [gl_cv_socket_unix], | |
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68 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
69 | #ifdef HAVE_SYS_SOCKET_H | |
70 | #include <sys/socket.h> | |
71 | #endif | |
72 | #ifdef HAVE_SYS_UN_H | |
73 | #include <sys/un.h> | |
74 | #endif | |
75 | #ifdef HAVE_WINSOCK2_H | |
76 | #include <winsock2.h> | |
77 | #endif]], | |
78 | [[int x = AF_UNIX; struct sockaddr_un y; | |
79 | if (&x && &y) return 0;]])], | |
80 | gl_cv_socket_unix=yes, gl_cv_socket_unix=no)]) | |
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81 | if test $gl_cv_socket_unix = yes; then |
82 | AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if <sys/socket.h> defines AF_UNIX.]) | |
83 | fi | |
84 | ]) |