+
+AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
+ AC_TRY_COMPILE(
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+ ],
+ [ struct sockaddr_storage s; ],
+ [ ac_cv_have_struct_sockaddr_storage="yes" ],
+ [ ac_cv_have_struct_sockaddr_storage="no" ]
+ )
+])
+if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
+ AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
+fi
+
+AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
+ AC_TRY_COMPILE(
+ [
+#include <netinet/in.h>
+ ],
+ [ struct sockaddr_in6 s; s.sin6_family = 0; ],
+ [ ac_cv_have_struct_sockaddr_in6="yes" ],
+ [ ac_cv_have_struct_sockaddr_in6="no" ]
+ )
+])
+if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
+ AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
+fi
+
+AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
+ AC_TRY_COMPILE(
+ [
+#include <netinet/in.h>
+ ],
+ [ struct in6_addr s; s.s6_addr[0] = 0; ],
+ [ ac_cv_have_struct_in6_addr="yes" ],
+ [ ac_cv_have_struct_in6_addr="no" ]
+ )
+])
+if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
+ AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
+fi
+
+AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
+ AC_TRY_COMPILE(
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+ ],
+ [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
+ [ ac_cv_have_struct_addrinfo="yes" ],
+ [ ac_cv_have_struct_addrinfo="no" ]
+ )
+])
+if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
+ AC_DEFINE(HAVE_STRUCT_ADDRINFO)
+fi
+
+
+# Checks for structure members
+
+OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
+OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
+
+
+AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
+ ac_cv_have_ss_family_in_struct_ss, [
+ AC_TRY_COMPILE(
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+ ],
+ [ struct sockaddr_storage s; s.ss_family = 1; ],
+ [ ac_cv_have_ss_family_in_struct_ss="yes" ],
+ [ ac_cv_have_ss_family_in_struct_ss="no" ],
+ )
+])
+if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
+ AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
+fi
+
+
+AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
+ ac_cv_have___ss_family_in_struct_ss, [
+ AC_TRY_COMPILE(
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+ ],
+ [ struct sockaddr_storage s; s.__ss_family = 1; ],
+ [ ac_cv_have___ss_family_in_struct_ss="yes" ],
+ [ ac_cv_have___ss_family_in_struct_ss="no" ]
+ )
+])
+if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
+ AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
+fi
+
+
+AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
+ AC_TRY_LINK([],
+ [ extern char *__progname; printf("%s", __progname); ],
+ [ ac_cv_libc_defines___progname="yes" ],
+ [ ac_cv_libc_defines___progname="no" ]
+ )
+])
+if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
+ AC_DEFINE(HAVE___PROGNAME)
+fi
+
+
+# Looking for programs, paths and files
+AC_ARG_WITH(rsh,
+ [ --with-rsh=PATH Specify path to remote shell program ],