source/lib/replace/libreplace_network.m4

   1 AC_DEFUN_ONCE(AC_LIBREPLACE_NETWORK_CHECKS,
   2 [
   3 echo "LIBREPLACE_NETWORK_CHECKS: START"
   4
   5 AC_CHECK_HEADERS(sys/socket.h netinet/in.h netdb.h arpa/inet.h)
   6 AC_CHECK_HEADERS(netinet/ip.h netinet/tcp.h netinet/in_systm.h netinet/in_ip.h)
   7
   8 dnl we need to check that net/if.h really can be used, to cope with hpux
   9 dnl where including it always fails
  10 AC_CACHE_CHECK([for usable net/if.h],libreplace_cv_USABLE_NET_IF_H,[
  11         AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  12                 AC_INCLUDES_DEFAULT
  13                 #if HAVE_SYS_SOCKET_H
  14                 # include <sys/socket.h>
  15                 #endif
  16                 #include <net/if.h>
  17                 int main(void) {return 0;}])],
  18                 [libreplace_cv_USABLE_NET_IF_H=yes],
  19                 [libreplace_cv_USABLE_NET_IF_H=no]
  20         )
  21 ])
  22 if test x"$libreplace_cv_USABLE_NET_IF_H" = x"yes";then
  23         AC_DEFINE(HAVE_NET_IF_H, 1, usability of net/if.h)
  24 fi
  25
  26 AC_HAVE_TYPE([socklen_t],[#include <sys/socket.h>])
  27 AC_HAVE_TYPE([sa_family_t],[#include <sys/socket.h>])
  28 AC_HAVE_TYPE([struct addrinfo], [#include <netdb.h>])
  29 AC_HAVE_TYPE([struct sockaddr], [#include <sys/socket.h>])
  30 AC_HAVE_TYPE([struct sockaddr_storage], [
  31 #include <sys/socket.h>
  32 #include <sys/types.h>
  33 #include <netinet/in.h>
  34 ])
  35 AC_HAVE_TYPE([struct sockaddr_in6], [
  36 #include <sys/socket.h>
  37 #include <sys/types.h>
  38 #include <netinet/in.h>
  39 ])
  40
  41 if test x"$ac_cv_type_struct_sockaddr_storage" = x"yes"; then
  42 AC_CHECK_MEMBER(struct sockaddr_storage.ss_family,
  43                 AC_DEFINE(HAVE_SS_FAMILY, 1, [Defined if struct sockaddr_storage has ss_family field]),,
  44                 [
  45 #include <sys/socket.h>
  46 #include <sys/types.h>
  47 #include <netinet/in.h>
  48                 ])
  49
  50 if test x"$ac_cv_member_struct_sockaddr_storage_ss_family" != x"yes"; then
  51 AC_CHECK_MEMBER(struct sockaddr_storage.__ss_family,
  52                 AC_DEFINE(HAVE___SS_FAMILY, 1, [Defined if struct sockaddr_storage has __ss_family field]),,
  53                 [
  54 #include <sys/socket.h>
  55 #include <sys/types.h>
  56 #include <netinet/in.h>
  57                 ])
  58 fi
  59 fi
  60
  61 dnl The following test is roughl taken from the cvs sources.
  62 dnl
  63 dnl If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
  64 dnl The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
  65 dnl libsocket.so which has a bad implementation of gethostbyname (it
  66 dnl only looks in /etc/hosts), so we only look for -lsocket if we need
  67 dnl it.
  68 AC_CHECK_FUNCS(connect)
  69 if test x"$ac_cv_func_connect" = x"no"; then
  70         AC_CHECK_LIB_EXT(nsl_s, LIBREPLACE_NETWORK_LIBS, connect)
  71         AC_CHECK_LIB_EXT(nsl, LIBREPLACE_NETWORK_LIBS, connect)
  72         AC_CHECK_LIB_EXT(socket, LIBREPLACE_NETWORK_LIBS, connect)
  73         AC_CHECK_LIB_EXT(inet, LIBREPLACE_NETWORK_LIBS, connect)
  74         dnl We can't just call AC_CHECK_FUNCS(connect) here,
  75         dnl because the value has been cached.
  76         if test x"$ac_cv_lib_ext_nsl_s_connect" = x"yes" ||
  77                 test x"$ac_cv_lib_ext_nsl_connect" = x"yes" ||
  78                 test x"$ac_cv_lib_ext_socket_connect" = x"yes" ||
  79                 test x"$ac_cv_lib_ext_inet_connect" = x"yes"
  80         then
  81                 AC_DEFINE(HAVE_CONNECT,1,[Whether the system has connect()])
  82         fi
  83 fi
  84
  85 AC_CHECK_FUNCS(gethostbyname)
  86 if test x"$ac_cv_func_gethostbyname" = x"no"; then
  87         AC_CHECK_LIB_EXT(nsl_s, LIBREPLACE_NETWORK_LIBS, gethostbyname)
  88         AC_CHECK_LIB_EXT(nsl, LIBREPLACE_NETWORK_LIBS, gethostbyname)
  89         AC_CHECK_LIB_EXT(socket, LIBREPLACE_NETWORK_LIBS, gethostbyname)
  90         dnl We can't just call AC_CHECK_FUNCS(gethostbyname) here,
  91         dnl because the value has been cached.
  92         if test x"$ac_cv_lib_ext_nsl_s_gethostbyname" = x"yes" ||
  93                 test x"$ac_cv_lib_ext_nsl_gethostbyname" = x"yes" ||
  94                 test x"$ac_cv_lib_ext_socket_gethostbyname" = x"yes"
  95         then
  96                 AC_DEFINE(HAVE_GETHOSTBYNAME,1,
  97                           [Whether the system has gethostbyname()])
  98         fi
  99 fi
 100
 101 AC_CHECK_FUNCS(inet_ntoa,[],[LIBREPLACEOBJ="${LIBREPLACEOBJ} inet_ntoa.o"])
 102
 103 AC_CACHE_CHECK([for broken inet_ntoa],libreplace_cv_REPLACE_INET_NTOA,[
 104 AC_TRY_RUN([
 105 #include <stdio.h>
 106 #include <unistd.h>
 107 #include <sys/types.h>
 108 #include <netinet/in.h>
 109 #ifdef HAVE_ARPA_INET_H
 110 #include <arpa/inet.h>
 111 #endif
 112 main() { struct in_addr ip; ip.s_addr = 0x12345678;
 113 if (strcmp(inet_ntoa(ip),"18.52.86.120") &&
 114     strcmp(inet_ntoa(ip),"120.86.52.18")) { exit(0); }
 115 exit(1);}],
 116            libreplace_cv_REPLACE_INET_NTOA=yes,libreplace_cv_REPLACE_INET_NTOA=no,libreplace_cv_REPLACE_INET_NTOA=cross)])
 117 if test x"$libreplace_cv_REPLACE_INET_NTOA" = x"yes"; then
 118     AC_DEFINE(REPLACE_INET_NTOA,1,[Whether inet_ntoa should be replaced])
 119 fi
 120
 121 AC_CHECK_FUNCS(inet_aton,[],[LIBREPLACEOBJ="${LIBREPLACEOBJ} inet_aton.o"])
 122
 123 m4_include(inet_ntop.m4)
 124 m4_include(inet_pton.m4)
 125 m4_include(getaddrinfo.m4)
 126 m4_include(getifaddrs.m4)
 127 m4_include(socketpair.m4)
 128
 129 echo "LIBREPLACE_NETWORK_CHECKS: END"
 130 ]) dnl end AC_LIBREPLACE_NETWORK_CHECKS