AC_DEFUN_ONCE(AC_LIBREPLACE_NETWORK_CHECKS, [ echo "LIBREPLACE_NETWORK_CHECKS: START" AC_DEFINE(LIBREPLACE_NETWORK_CHECKS, 1, [LIBREPLACE_NETWORK_CHECKS were used]) LIBREPLACE_NETWORK_OBJS="" LIBREPLACE_NETWORK_LIBS="" AC_CHECK_HEADERS(sys/socket.h netinet/in.h netdb.h arpa/inet.h) AC_CHECK_HEADERS(netinet/in_systm.h) AC_CHECK_HEADERS([netinet/ip.h], [], [],[ #include <sys/types.h> #ifdef HAVE_NETINET_IN_H #include <netinet/in.h> #endif #ifdef HAVE_NETINET_IN_SYSTM_H #include <netinet/in_systm.h> #endif ]) AC_CHECK_HEADERS(netinet/tcp.h netinet/in_ip.h) AC_CHECK_HEADERS(sys/sockio.h sys/un.h) AC_CHECK_HEADERS(sys/uio.h) dnl we need to check that net/if.h really can be used, to cope with hpux dnl where including it always fails AC_CACHE_CHECK([for usable net/if.h],libreplace_cv_USABLE_NET_IF_H,[ AC_COMPILE_IFELSE([AC_LANG_SOURCE([ AC_INCLUDES_DEFAULT #if HAVE_SYS_SOCKET_H # include <sys/socket.h> #endif #include <net/if.h> int main(void) {return 0;}])], [libreplace_cv_USABLE_NET_IF_H=yes], [libreplace_cv_USABLE_NET_IF_H=no] ) ]) if test x"$libreplace_cv_USABLE_NET_IF_H" = x"yes";then AC_DEFINE(HAVE_NET_IF_H, 1, usability of net/if.h) fi AC_HAVE_TYPE([socklen_t],[#include <sys/socket.h>]) AC_HAVE_TYPE([sa_family_t],[#include <sys/socket.h>]) AC_HAVE_TYPE([struct addrinfo], [#include <netdb.h>]) AC_HAVE_TYPE([struct sockaddr], [#include <sys/socket.h>]) AC_HAVE_TYPE([struct sockaddr_storage], [ #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> ]) AC_HAVE_TYPE([struct sockaddr_in6], [ #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> ]) if test x"$ac_cv_type_struct_sockaddr_storage" = x"yes"; then AC_CHECK_MEMBER(struct sockaddr_storage.ss_family, AC_DEFINE(HAVE_SS_FAMILY, 1, [Defined if struct sockaddr_storage has ss_family field]),, [ #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> ]) if test x"$ac_cv_member_struct_sockaddr_storage_ss_family" != x"yes"; then AC_CHECK_MEMBER(struct sockaddr_storage.__ss_family, AC_DEFINE(HAVE___SS_FAMILY, 1, [Defined if struct sockaddr_storage has __ss_family field]),, [ #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> ]) fi fi AC_CACHE_CHECK([for sin_len in sock],libreplace_cv_HAVE_SOCK_SIN_LEN,[ AC_TRY_COMPILE( [ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> ],[ struct sockaddr_in sock; sock.sin_len = sizeof(sock); ],[ libreplace_cv_HAVE_SOCK_SIN_LEN=yes ],[ libreplace_cv_HAVE_SOCK_SIN_LEN=no ]) ]) if test x"$libreplace_cv_HAVE_SOCK_SIN_LEN" = x"yes"; then AC_DEFINE(HAVE_SOCK_SIN_LEN,1,[Whether the sockaddr_in struct has a sin_len property]) fi ############################################ # check for unix domain sockets AC_CACHE_CHECK([for unix domain sockets],libreplace_cv_HAVE_UNIXSOCKET,[ AC_TRY_COMPILE([ #include <sys/types.h> #include <stdlib.h> #include <stddef.h> #include <sys/socket.h> #include <sys/un.h> ],[ struct sockaddr_un sunaddr; sunaddr.sun_family = AF_UNIX; ],[ libreplace_cv_HAVE_UNIXSOCKET=yes ],[ libreplace_cv_HAVE_UNIXSOCKET=no ]) ]) if test x"$libreplace_cv_HAVE_UNIXSOCKET" = x"yes"; then AC_DEFINE(HAVE_UNIXSOCKET,1,[If we need to build with unixscoket support]) fi dnl The following test is roughly taken from the cvs sources. dnl dnl If we can't find connect, try looking in -lsocket, -lnsl, and -linet. dnl The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has dnl libsocket.so which has a bad implementation of gethostbyname (it dnl only looks in /etc/hosts), so we only look for -lsocket if we need dnl it. AC_CHECK_FUNCS(connect) if test x"$ac_cv_func_connect" = x"no"; then AC_CHECK_LIB_EXT(nsl_s, LIBREPLACE_NETWORK_LIBS, connect) AC_CHECK_LIB_EXT(nsl, LIBREPLACE_NETWORK_LIBS, connect) AC_CHECK_LIB_EXT(socket, LIBREPLACE_NETWORK_LIBS, connect) AC_CHECK_LIB_EXT(inet, LIBREPLACE_NETWORK_LIBS, connect) dnl We can't just call AC_CHECK_FUNCS(connect) here, dnl because the value has been cached. if test x"$ac_cv_lib_ext_nsl_s_connect" = x"yes" || test x"$ac_cv_lib_ext_nsl_connect" = x"yes" || test x"$ac_cv_lib_ext_socket_connect" = x"yes" || test x"$ac_cv_lib_ext_inet_connect" = x"yes" then AC_DEFINE(HAVE_CONNECT,1,[Whether the system has connect()]) fi fi AC_CHECK_FUNCS(gethostbyname) if test x"$ac_cv_func_gethostbyname" = x"no"; then AC_CHECK_LIB_EXT(nsl_s, LIBREPLACE_NETWORK_LIBS, gethostbyname) AC_CHECK_LIB_EXT(nsl, LIBREPLACE_NETWORK_LIBS, gethostbyname) AC_CHECK_LIB_EXT(socket, LIBREPLACE_NETWORK_LIBS, gethostbyname) dnl We can't just call AC_CHECK_FUNCS(gethostbyname) here, dnl because the value has been cached. if test x"$ac_cv_lib_ext_nsl_s_gethostbyname" = x"yes" || test x"$ac_cv_lib_ext_nsl_gethostbyname" = x"yes" || test x"$ac_cv_lib_ext_socket_gethostbyname" = x"yes" then AC_DEFINE(HAVE_GETHOSTBYNAME,1, [Whether the system has gethostbyname()]) fi fi dnl HP-UX has if_nametoindex in -lipv6 AC_CHECK_FUNCS(if_nametoindex) if test x"$ac_cv_func_if_nametoindex" = x"no"; then AC_CHECK_LIB_EXT(ipv6, LIBREPLACE_NETWORK_LIBS, if_nametoindex) dnl We can't just call AC_CHECK_FUNCS(if_nametoindex) here, dnl because the value has been cached. if test x"$ac_cv_lib_ext_ipv6_if_nametoindex" = x"yes" then AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Whether the system has if_nametoindex()]) fi fi # The following tests need LIBS="${LIBREPLACE_NETWORK_LIBS}" old_LIBS=$LIBS LIBS="${LIBREPLACE_NETWORK_LIBS}" libreplace_SAVE_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -I$libreplacedir" AC_CHECK_FUNCS(socketpair,[],[LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/socketpair.o"]) AC_CACHE_CHECK([for broken inet_ntoa],libreplace_cv_REPLACE_INET_NTOA,[ AC_TRY_RUN([ #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <netinet/in.h> #ifdef HAVE_ARPA_INET_H #include <arpa/inet.h> #endif main() { struct in_addr ip; ip.s_addr = 0x12345678; if (strcmp(inet_ntoa(ip),"18.52.86.120") && strcmp(inet_ntoa(ip),"120.86.52.18")) { exit(0); } exit(1);}], libreplace_cv_REPLACE_INET_NTOA=yes,libreplace_cv_REPLACE_INET_NTOA=no,libreplace_cv_REPLACE_INET_NTOA=cross)]) AC_CHECK_FUNCS(inet_ntoa,[],[libreplace_cv_REPLACE_INET_NTOA=yes]) if test x"$libreplace_cv_REPLACE_INET_NTOA" = x"yes"; then AC_DEFINE(REPLACE_INET_NTOA,1,[Whether inet_ntoa should be replaced]) LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/inet_ntoa.o" fi AC_CHECK_FUNCS(inet_aton,[],[LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/inet_aton.o"]) AC_CHECK_FUNCS(inet_ntop,[],[LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/inet_ntop.o"]) AC_CHECK_FUNCS(inet_pton,[],[LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/inet_pton.o"]) dnl test for getaddrinfo/getnameinfo AC_CACHE_CHECK([for getaddrinfo],libreplace_cv_HAVE_GETADDRINFO,[ AC_TRY_LINK([ #include <sys/types.h> #if STDC_HEADERS #include <stdlib.h> #include <stddef.h> #endif #include <sys/socket.h> #include <netdb.h>], [ struct sockaddr sa; struct addrinfo *ai = NULL; int ret = getaddrinfo(NULL, NULL, NULL, &ai); if (ret != 0) { const char *es = gai_strerror(ret); } freeaddrinfo(ai); ret = getnameinfo(&sa, sizeof(sa), NULL, 0, NULL, 0, 0); ], libreplace_cv_HAVE_GETADDRINFO=yes,libreplace_cv_HAVE_GETADDRINFO=no)]) if test x"$libreplace_cv_HAVE_GETADDRINFO" = x"yes"; then # getaddrinfo is broken on some AIX systems # see bug 5910, use our replacements if we detect # a broken system. AC_TRY_RUN([ #include <stddef.h> #include <sys/types.h> #include <sys/socket.h> #include <netdb.h> int main(int argc, const char *argv[]) { struct addrinfo hints = {0,}; struct addrinfo *ppres; const char hostname[] = "0.0.0.0"; hints.ai_socktype = SOCK_STREAM; hints.ai_family = AF_INET; hints.ai_flags = AI_NUMERICHOST|AI_PASSIVE|AI_ADDRCONFIG; return getaddrinfo(hostname, NULL, &hints, &ppres) != 0 ? 1 : 0; }], libreplace_cv_HAVE_GETADDRINFO=yes, libreplace_cv_HAVE_GETADDRINFO=no) fi if test x"$libreplace_cv_HAVE_GETADDRINFO" = x"yes"; then AC_DEFINE(HAVE_GETADDRINFO,1,[Whether the system has getaddrinfo]) AC_DEFINE(HAVE_GETNAMEINFO,1,[Whether the system has getnameinfo]) AC_DEFINE(HAVE_FREEADDRINFO,1,[Whether the system has freeaddrinfo]) AC_DEFINE(HAVE_GAI_STRERROR,1,[Whether the system has gai_strerror]) else LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/getaddrinfo.o" fi AC_CHECK_HEADERS([ifaddrs.h]) dnl Used when getifaddrs is not available AC_CHECK_MEMBERS([struct sockaddr.sa_len], [AC_DEFINE(HAVE_SOCKADDR_SA_LEN, 1, [Whether struct sockaddr has a sa_len member])], [], [#include <sys/socket.h>]) dnl test for getifaddrs and freeifaddrs AC_CACHE_CHECK([for getifaddrs and freeifaddrs],libreplace_cv_HAVE_GETIFADDRS,[ AC_TRY_LINK([ #include <sys/types.h> #if STDC_HEADERS #include <stdlib.h> #include <stddef.h> #endif #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <ifaddrs.h> #include <netdb.h>], [ struct ifaddrs *ifp = NULL; int ret = getifaddrs (&ifp); freeifaddrs(ifp); ], libreplace_cv_HAVE_GETIFADDRS=yes,libreplace_cv_HAVE_GETIFADDRS=no)]) if test x"$libreplace_cv_HAVE_GETIFADDRS" = x"yes"; then AC_DEFINE(HAVE_GETIFADDRS,1,[Whether the system has getifaddrs]) AC_DEFINE(HAVE_FREEIFADDRS,1,[Whether the system has freeifaddrs]) AC_DEFINE(HAVE_STRUCT_IFADDRS,1,[Whether struct ifaddrs is available]) fi ################## # look for a method of finding the list of network interfaces iface=no; AC_CACHE_CHECK([for iface getifaddrs],libreplace_cv_HAVE_IFACE_GETIFADDRS,[ AC_TRY_RUN([ #define HAVE_IFACE_GETIFADDRS 1 #define NO_CONFIG_H 1 #define AUTOCONF_TEST 1 #define SOCKET_WRAPPER_NOT_REPLACE #include "$libreplacedir/replace.c" #include "$libreplacedir/inet_ntop.c" #include "$libreplacedir/snprintf.c" #include "$libreplacedir/getifaddrs.c" #define getifaddrs_test main #include "$libreplacedir/test/getifaddrs.c"], libreplace_cv_HAVE_IFACE_GETIFADDRS=yes,libreplace_cv_HAVE_IFACE_GETIFADDRS=no,libreplace_cv_HAVE_IFACE_GETIFADDRS=cross)]) if test x"$libreplace_cv_HAVE_IFACE_GETIFADDRS" = x"yes"; then iface=yes;AC_DEFINE(HAVE_IFACE_GETIFADDRS,1,[Whether iface getifaddrs is available]) else LIBREPLACE_NETWORK_OBJS="${LIBREPLACE_NETWORK_OBJS} $libreplacedir/getifaddrs.o" fi if test $iface = no; then AC_CACHE_CHECK([for iface AIX],libreplace_cv_HAVE_IFACE_AIX,[ AC_TRY_RUN([ #define HAVE_IFACE_AIX 1 #define NO_CONFIG_H 1 #define AUTOCONF_TEST 1 #undef _XOPEN_SOURCE_EXTENDED #define SOCKET_WRAPPER_NOT_REPLACE #include "$libreplacedir/replace.c" #include "$libreplacedir/inet_ntop.c" #include "$libreplacedir/snprintf.c" #include "$libreplacedir/getifaddrs.c" #define getifaddrs_test main #include "$libreplacedir/test/getifaddrs.c"], libreplace_cv_HAVE_IFACE_AIX=yes,libreplace_cv_HAVE_IFACE_AIX=no,libreplace_cv_HAVE_IFACE_AIX=cross)]) if test x"$libreplace_cv_HAVE_IFACE_AIX" = x"yes"; then iface=yes;AC_DEFINE(HAVE_IFACE_AIX,1,[Whether iface AIX is available]) fi fi if test $iface = no; then AC_CACHE_CHECK([for iface ifconf],libreplace_cv_HAVE_IFACE_IFCONF,[ AC_TRY_RUN([ #define HAVE_IFACE_IFCONF 1 #define NO_CONFIG_H 1 #define AUTOCONF_TEST 1 #define SOCKET_WRAPPER_NOT_REPLACE #include "$libreplacedir/replace.c" #include "$libreplacedir/inet_ntop.c" #include "$libreplacedir/snprintf.c" #include "$libreplacedir/getifaddrs.c" #define getifaddrs_test main #include "$libreplacedir/test/getifaddrs.c"], libreplace_cv_HAVE_IFACE_IFCONF=yes,libreplace_cv_HAVE_IFACE_IFCONF=no,libreplace_cv_HAVE_IFACE_IFCONF=cross)]) if test x"$libreplace_cv_HAVE_IFACE_IFCONF" = x"yes"; then iface=yes;AC_DEFINE(HAVE_IFACE_IFCONF,1,[Whether iface ifconf is available]) fi fi if test $iface = no; then AC_CACHE_CHECK([for iface ifreq],libreplace_cv_HAVE_IFACE_IFREQ,[ AC_TRY_RUN([ #define HAVE_IFACE_IFREQ 1 #define NO_CONFIG_H 1 #define AUTOCONF_TEST 1 #define SOCKET_WRAPPER_NOT_REPLACE #include "$libreplacedir/replace.c" #include "$libreplacedir/inet_ntop.c" #include "$libreplacedir/snprintf.c" #include "$libreplacedir/getifaddrs.c" #define getifaddrs_test main #include "$libreplacedir/test/getifaddrs.c"], libreplace_cv_HAVE_IFACE_IFREQ=yes,libreplace_cv_HAVE_IFACE_IFREQ=no,libreplace_cv_HAVE_IFACE_IFREQ=cross)]) if test x"$libreplace_cv_HAVE_IFACE_IFREQ" = x"yes"; then iface=yes;AC_DEFINE(HAVE_IFACE_IFREQ,1,[Whether iface ifreq is available]) fi fi dnl Some old Linux systems have broken header files and dnl miss the IPV6_V6ONLY define in netinet/in.h, dnl but have it in linux/in6.h. dnl We can't include both files so we just check if the value dnl if defined and do the replacement in system/network.h AC_CACHE_CHECK([for IPV6_V6ONLY support],libreplace_cv_HAVE_IPV6_V6ONLY,[ AC_TRY_COMPILE([ #include <stdlib.h> /* for NULL */ #include <sys/socket.h> #include <sys/types.h> #include <netdb.h> #include <netinet/in.h> ], [ #ifndef IPV6_V6ONLY #error no IPV6_V6ONLY #endif ],[ libreplace_cv_HAVE_IPV6_V6ONLY=yes ],[ libreplace_cv_HAVE_IPV6_V6ONLY=no ]) ]) if test x"$libreplace_cv_HAVE_IPV6_V6ONLY" != x"yes"; then dnl test for IPV6_V6ONLY AC_CACHE_CHECK([for IPV6_V6ONLY in linux/in6.h],libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26,[ AC_TRY_COMPILE([ #include <linux/in6.h> ], [ #if (IPV6_V6ONLY != 26) #error no linux IPV6_V6ONLY #endif ],[ libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26=yes ],[ libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26=no ]) ]) if test x"$libreplace_cv_HAVE_LINUX_IPV6_V6ONLY_26" = x"yes"; then AC_DEFINE(HAVE_LINUX_IPV6_V6ONLY_26,1,[Whether the system has IPV6_V6ONLY in linux/in6.h]) fi fi dnl test for ipv6 AC_CACHE_CHECK([for ipv6 support],libreplace_cv_HAVE_IPV6,[ AC_TRY_LINK([ #include <stdlib.h> /* for NULL */ #include <sys/socket.h> #include <sys/types.h> #include <netdb.h> #include <netinet/in.h> ], [ struct sockaddr_storage sa_store; struct addrinfo *ai = NULL; struct in6_addr in6addr; int idx = if_nametoindex("iface1"); int s = socket(AF_INET6, SOCK_STREAM, 0); int ret = getaddrinfo(NULL, NULL, NULL, &ai); if (ret != 0) { const char *es = gai_strerror(ret); } freeaddrinfo(ai); { int val = 1; #ifdef HAVE_LINUX_IPV6_V6ONLY_26 #define IPV6_V6ONLY 26 #endif ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (const void *)&val, sizeof(val)); } ],[ libreplace_cv_HAVE_IPV6=yes ],[ libreplace_cv_HAVE_IPV6=no ]) ]) if test x"$libreplace_cv_HAVE_IPV6" = x"yes"; then AC_DEFINE(HAVE_IPV6,1,[Whether the system has IPv6 support]) fi LIBS=$old_LIBS CPPFLAGS="$libreplace_SAVE_CPPFLAGS" LIBREPLACEOBJ="${LIBREPLACEOBJ} ${LIBREPLACE_NETWORK_OBJS}" echo "LIBREPLACE_NETWORK_CHECKS: END" ]) dnl end AC_LIBREPLACE_NETWORK_CHECKS