dnl $Id$
dnl
dnl Process this file with autoconf to produce a configure script.
dnl

AC_INIT(config.h.in)
AM_INIT_AUTOMAKE(avenger, 0.8.4)
dnl AM_CONFIG_HEADER(config.h)
AC_CONFIG_HEADERS(config.h)

AC_SUBST(LDADD)
AC_SUBST(LDEPS)

AC_CANONICAL_HOST

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
SFS_WFLAGS
AC_PROG_INSTALL
AC_PROG_LN_S
dnl AC_PROG_RANLIB

test -z "$target" && target=NONE
AM_DISABLE_SHARED
AM_PROG_LIBTOOL

AC_SEARCH_LIBS(clock_gettime, rt)

dnl SFS_SFS

SFS_PATH_PROG(logger)
SFS_PATH_PROG(mail.local)
SFS_DEV_RANDOM
SFS_PERL_POD

AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(sys/rusage.h)
AC_CHECK_HEADERS(sys/sockio.h sys/filio.h sys/file.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_STRUCT_TM
AC_TYPE_OFF_T
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_C_BIGENDIAN
SFS_TIMESPEC
SFS_CHECK_U_INT64
SFS_CHECK_TYPE(ssize_t)
SFS_CHECK_TYPE(int32_t)
SFS_CHECK_TYPE(u_int32_t)
SFS_CHECK_TYPE(u_int16_t)
SFS_CHECK_TYPE(u_int8_t)
SFS_CHECK_TYPE(mode_t)
SFS_CHECK_TYPE(u_char)
SFS_CHECK_TYPE(u_int)
SFS_CHECK_TYPE(u_long)
SFS_CHECK_TYPE(int64_t)
SFS_CHECK_TYPE(u_int64_t)
SFS_CHECK_TYPE(socklen_t)
SFS_CHECK_TYPE(rlim_t,
[#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif /* HAVE_SYS_TIME_H */
#include <sys/resource.h>
#ifdef HAVE_SYS_RUSAGE_H
#include <sys/rusage.h>
#endif /* !HAVE_SYS_RUSAGE_H */])
SFS_CHECK_OFF_T_64
SFS_SETGROUPS
SFS_CHECK_DECL(getrusage, sys/rusage.h sys/resource.h, sys/time.h)
SFS_CHECK_DECL(bindresvport, rpc/rpc.h)

dnl Checks for library functions.
AC_CHECK_FUNCS(strchr memcpy strcasecmp)
AC_CHECK_FUNCS(getdtablesize)
AC_CHECK_FUNCS(strerror)
AC_CHECK_FUNCS(inet_aton bindresvport)
AC_CHECK_FUNCS(issetugid geteuid getegid)
AC_CHECK_FUNCS(arc4random)
AC_CHECK_FUNCS(flock)
AC_CHECK_FUNCS(unsetenv)
AC_CHECK_FUNCS(getpeereid)

dnl SFS specific checks
SFS_DMALLOC
SFS_CHECK_WIDE_SELECT
SFS_PUTENV_COPY
SFS_CHECK_SA_LEN
SFS_CHECK_FDPASS
SFS_CHECK_SOCK_BUF
SFS_FIND_RESOLV
AC_CHECK_FUNCS(__res_ninit)

SFS_CHECK_STAT_FIELD(st_atimespec)
SFS_CHECK_STAT_FIELD(st_mtimespec)
SFS_CHECK_STAT_FIELD(st_mtim)

AC_CHECK_FUNCS(mkdtemp)
SFS_CHECK_DECL(sys_signame, signal.h)

SFS_CHECK_EGID_IN_GROUPLIST
AC_CHECK_FUNCS(getspnam setlogin initgroups seteuid)
SFS_PASSWD_FIELD(pw_expire)
SFS_PASSWD_FIELD(pw_class)
SFS_GETGROUPLIST
SFS_CHECK_SETUSERCONTEXT
SFS_CHECK_DECL(pread, unistd.h)
SFS_CHECK_DECL(pwrite, unistd.h)

CPPFLAGS="$CPPFLAGS "'-I$(top_srcdir)'

USE_SYNFP=1
AC_ARG_ENABLE(synfp,
--disable-synfp           Disable code for collection of TCP SYN fingerprints,
if test no = "$enableval"; then
   USE_SYNFP=0
fi)
if test 1 = "$USE_SYNFP"; then
   for dir in ${prefix}/include/pcap /usr/include/pcap; do
       if test -d "$dir"; then
           CPPFLAGS="$CPPFLAGS -I$dir"
	   break
       fi
   done
   AC_CHECK_HEADERS(pcap.h,, USE_SYNFP=0)
fi
if test 1 = "$USE_SYNFP"; then
   SFS_CHECK_TYPE(bpf_u_int32, [#include <pcap.h>])
   saved_LIBS="$LIBS"
   LIBS="-lpcap $LIBS"
   AC_CHECK_FUNCS(pcap_freecode)
   LIBS="$saved_LIBS"
fi
if test 1 = "$USE_SYNFP"; then
   AC_DEFINE(USE_SYNFP, 1, [Define to include code for TCP SYN fingerprints])
fi

unset LIBPCAP
test 1 = "$USE_SYNFP" && LIBPCAP=-lpcap
AC_SUBST(LIBPCAP)


AC_ARG_ENABLE(ssl,
--disable-ssl             Disable STARTTLS command)
unset LIBSSL
if test no != "$enable_ssl"; then
    AC_MSG_CHECKING([for OpenSSL])
    for dir in "$enable_ssl" "$prefix" "$prefix/ssl" \
	      /usr/ssl /usr /usr/local/ssl /usr/local; do
	unset ssl_cppflags
	unset ssl_libs
        if test -f "$dir/include/openssl/ssl.h"; then
	    if test /usr = "$dir"; then
		ssl_cppflags=""
	    else
		ssl_cppflags="-I$dir/include"
	    fi
        fi
	test -z "${ssl_cppflags+set}" && continue
	if test /usr = "$dir"; then
	    ssl_libs="-lssl -lcrypto"
	else
	    ssl_libs="-L$dir/lib -lssl -lcrypto"
	fi
	if test -z "$enable_ssl"; then
	   saved_CPPFLAGS="$CPPFLAGS"
	   CPPFLAGS="$CPPFLAGS $ssl_cppflags"
	   AC_TRY_COMPILE([#include <openssl/ssl.h>],
[#if OPENSSL_VERSION_NUMBER < 0x00907000L
#error untested version of openssl
#endif],, unset ssl_libs)
	   CPPFLAGS="$saved_CPPFLAGS"
	fi
	test  -n "$ssl_libs" && break
    done
    if test -n "$ssl_libs"; then
	AC_MSG_RESULT($dir)
	CPPFLAGS="$CPPFLAGS $ssl_cppflags"
	LIBSSL="$ssl_libs"
	AC_DEFINE(STARTTLS, 1, [Define to implement STARTTLS command.])

    elif test -z "$enable_ssl"; then
	AC_MSG_RESULT(no)
    else
	AC_MSG_ERROR([Could not find OpenSSL libraries])
    fi
fi
AC_SUBST(LIBSSL)
AM_CONDITIONAL(SSL, test -n "$LIBSSL")


AC_ARG_ENABLE(sasl,
--enable-sasl             Enable SASL w. Cyrus SASL2 library,,
enable_sasl=no)
if test yes = "$enable_sasl"; then
   for dir in "$prefix" /usr/local /usr; do
       test -f "$dir/include/sasl/sasl.h" \
	    -a \( -f "$dir/lib/libsasl2.la" -o -f "$dir/lib/libsasl2.a" \) \
	    && sasl="$dir" && break
   done
elif test -n "$enable_sasl" -a no != "$enable_sasl"; then
   sasl="$enable_sasl"
fi

unset LIBSASL
if test -n "$sasl"; then
   if test -f "$dir/lib/libsasl2.la"; then
      LIBSASL="$dir/lib/libsasl2.la"
   else
      LIBSASL="-L$dir/lib -lsasl2"
   fi
   CPPFLAGS="$CPPFLAGS -I$sasl/include/sasl"
   AC_DEFINE(SASL, 1, [Define to use Cyrus libsasl2.])
fi
AC_SUBST(LIBSASL)

saved_LIBS="$LIBS"
unset NDBM_LIBS
unset NDBM_INC
AC_SEARCH_LIBS(dbm_open, ndbm,
               [AC_DEFINE(HAVE_NDBM, 1, Define if you have dbm/ndbm)])
NDBM_LIBS=${LIBS% $saved_LIBS}
if test "$ac_cv_search_dbm_open" != no; then
   if test ! -f /usr/include/ndbm.h; then
      if test -f /usr/include/db1/ndbm.h; then
	 NDBM_INC="-I/usr/include/db1"
      fi
      if test -f /usr/include/gdbm/ndbm.h; then
	 NDBM_INC="-I/usr/include/gdbm"
      fi
   fi
fi
LIBS="$saved_LIBS"
AC_SUBST(NDBM_LIBS)
AC_SUBST(NDBM_INC)


SFS_SLEEPYCAT(5.3 5.2 5.1 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1)

AC_ARG_WITH(etcdir,
--with-etcdir=DIR         Location of per-host configuration files)
etcdir="$with_etcdir"
test -z "$etcdir" -o yes = "$etcdir" -o no = "$etcdir" && etcdir=/etc/avenger
AC_SUBST(etcdir)
CPPFLAGS="$CPPFLAGS -DETCDIR="'\"$(etcdir)\"'
CPPFLAGS="$CPPFLAGS -DLIBEXEC="'\"$(libexecdir)\"'
CPPFLAGS="$CPPFLAGS -DBINDIR="'\"$(bindir)\"'
CPPFLAGS="$CPPFLAGS -DEXECDIR=LIBEXEC"
CPPFLAGS="$CPPFLAGS -DDATADIR="'\"$(datadir)\"'

if test -d /var/run; then
    piddir=/var/run
else
    piddir="$etcdir"
fi
AC_SUBST(piddir)
CPPFLAGS="$CPPFLAGS -DPIDDIR="'\"$(piddir)\"'

AC_SUBST(sampledir)
sampledir='${datadir}/avenger'

SFS_CFLAGS

LDADD="$LDADD "'$(top_builddir)/libasync/libasync.a'
LDEPS="$LDEPS "'$(top_builddir)/libasync/libasync.a'
CPPFLAGS="$CPPFLAGS "'-I$(top_srcdir)/libasync'

ETAGS_ARGS='-C /dev/null'
AC_SUBST(ETAGS_ARGS)

AC_OUTPUT(Makefile libasync/Makefile asmtpd/Makefile
          util/Makefile local/Makefile
	  doc/Makefile etc/Makefile etc/avenger.service)