| # getaddrinfo.m4 serial 32 |
| dnl Copyright (C) 2004-2020 Free Software Foundation, Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| AC_DEFUN([gl_GETADDRINFO], |
| [ |
| AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H |
| AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H |
| AC_MSG_CHECKING([how to do getaddrinfo, freeaddrinfo and getnameinfo]) |
| GETADDRINFO_LIB= |
| gai_saved_LIBS="$LIBS" |
| |
| dnl Where is getaddrinfo()? |
| dnl - On Solaris, it is in libsocket. |
| dnl - On Haiku, it is in libnetwork. |
| dnl - On BeOS, it is in libnet. |
| dnl - On native Windows, it is in ws2_32.dll. |
| dnl - Otherwise it is in libc. |
| AC_SEARCH_LIBS([getaddrinfo], [socket network net], |
| [if test "$ac_cv_search_getaddrinfo" != "none required"; then |
| GETADDRINFO_LIB="$ac_cv_search_getaddrinfo" |
| fi]) |
| LIBS="$gai_saved_LIBS $GETADDRINFO_LIB" |
| |
| HAVE_GETADDRINFO=1 |
| AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [ |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #include <stddef.h> |
| ]], [[getaddrinfo("", "", NULL, NULL);]])], |
| [gl_cv_func_getaddrinfo=yes], |
| [gl_cv_func_getaddrinfo=no])]) |
| if test $gl_cv_func_getaddrinfo = no; then |
| AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32], |
| gl_cv_w32_getaddrinfo, [ |
| gl_cv_w32_getaddrinfo=no |
| am_save_LIBS="$LIBS" |
| LIBS="$LIBS -lws2_32" |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[ |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| #include <stddef.h> |
| ]], [[getaddrinfo(NULL, NULL, NULL, NULL);]])], [gl_cv_w32_getaddrinfo=yes]) |
| LIBS="$am_save_LIBS" |
| ]) |
| if test "$gl_cv_w32_getaddrinfo" = "yes"; then |
| GETADDRINFO_LIB="-lws2_32" |
| LIBS="$gai_saved_LIBS $GETADDRINFO_LIB" |
| dnl Check for correct signature, in particular for a cdecl-compatible |
| dnl calling convention. |
| AC_CACHE_CHECK([for getaddrinfo with POSIX signature], |
| [gl_cv_func_getaddrinfo_posix_signature], |
| [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| #include <stddef.h> |
| extern |
| #ifdef __cplusplus |
| "C" |
| #endif |
| int getaddrinfo (const char *, const char *, const struct addrinfo *, struct addrinfo **); |
| ]])], |
| [gl_cv_func_getaddrinfo_posix_signature=yes], |
| [gl_cv_func_getaddrinfo_posix_signature=no]) |
| ]) |
| if test $gl_cv_func_getaddrinfo_posix_signature = no; then |
| REPLACE_GETADDRINFO=1 |
| fi |
| else |
| HAVE_GETADDRINFO=0 |
| fi |
| fi |
| AC_DEFINE_UNQUOTED([HAVE_GETADDRINFO], [$HAVE_GETADDRINFO], |
| [Define to 1 if getaddrinfo exists, or to 0 otherwise.]) |
| |
| # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an |
| # inline function declared in ws2tcpip.h, so we need to get that |
| # header included somehow. |
| AC_CHECK_DECLS([gai_strerror], [], [], [[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| #include <stddef.h> |
| ]]) |
| if test $ac_cv_have_decl_gai_strerror = yes; then |
| AC_CHECK_DECLS([gai_strerrorA], [], [], [[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| #include <stddef.h> |
| ]]) |
| dnl check for correct signature |
| AC_CACHE_CHECK([for gai_strerror with POSIX signature], |
| [gl_cv_func_gai_strerror_posix_signature], [ |
| AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| #include <stddef.h> |
| extern |
| #ifdef __cplusplus |
| "C" |
| #endif |
| const char *gai_strerror(int);]])], |
| [gl_cv_func_gai_strerror_posix_signature=yes], |
| [gl_cv_func_gai_strerror_posix_signature=no])]) |
| if test $gl_cv_func_gai_strerror_posix_signature = no; then |
| REPLACE_GAI_STRERROR=1 |
| fi |
| fi |
| |
| LIBS="$gai_saved_LIBS" |
| |
| gl_PREREQ_GETADDRINFO |
| |
| AC_SUBST([GETADDRINFO_LIB]) |
| ]) |
| |
| # Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c. |
| AC_DEFUN([gl_PREREQ_GETADDRINFO], [ |
| AC_REQUIRE([gl_NETDB_H_DEFAULTS]) |
| AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H |
| AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB |
| AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB |
| AC_REQUIRE([gl_FUNC_INET_NTOP]) dnl for INET_NTOP_LIB |
| AC_REQUIRE([AC_C_RESTRICT]) |
| AC_REQUIRE([gl_SOCKET_FAMILIES]) |
| AC_REQUIRE([gl_HEADER_SYS_SOCKET]) |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| |
| dnl Including sys/socket.h is wrong for Windows, but Windows does not |
| dnl have sa_len so the result is correct anyway. |
| AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [ |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| ]) |
| |
| AC_CHECK_HEADERS_ONCE([netinet/in.h]) |
| |
| AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, getnameinfo],,,[[ |
| /* sys/types.h is not needed according to POSIX, but the |
| sys/socket.h in i386-unknown-freebsd4.10 and |
| powerpc-apple-darwin5.5 required it. */ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| ]]) |
| if test $ac_cv_have_decl_getaddrinfo = no; then |
| HAVE_DECL_GETADDRINFO=0 |
| fi |
| if test $ac_cv_have_decl_freeaddrinfo = no; then |
| HAVE_DECL_FREEADDRINFO=0 |
| fi |
| if test $ac_cv_have_decl_gai_strerror = no; then |
| HAVE_DECL_GAI_STRERROR=0 |
| fi |
| if test $ac_cv_have_decl_getnameinfo = no; then |
| HAVE_DECL_GETNAMEINFO=0 |
| fi |
| |
| AC_CHECK_TYPES([struct addrinfo],,,[ |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| #ifdef HAVE_WS2TCPIP_H |
| #include <ws2tcpip.h> |
| #endif |
| ]) |
| if test $ac_cv_type_struct_addrinfo = no; then |
| HAVE_STRUCT_ADDRINFO=0 |
| fi |
| |
| dnl Append $HOSTENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. |
| case " $GETADDRINFO_LIB " in |
| *" $HOSTENT_LIB "*) ;; |
| *) GETADDRINFO_LIB="$GETADDRINFO_LIB $HOSTENT_LIB" ;; |
| esac |
| |
| dnl Append $SERVENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. |
| case " $GETADDRINFO_LIB " in |
| *" $SERVENT_LIB "*) ;; |
| *) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;; |
| esac |
| |
| dnl Append $INET_NTOP_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. |
| case " $GETADDRINFO_LIB " in |
| *" $INET_NTOP_LIB "*) ;; |
| *) GETADDRINFO_LIB="$GETADDRINFO_LIB $INET_NTOP_LIB" ;; |
| esac |
| ]) |