configure.ac

   1 # $Id$
   2
   3 AC_INIT
   4 AC_CONFIG_SRCDIR([ssh.c])
   5
   6 AC_CONFIG_HEADER(config.h)
   7 AC_PROG_CC
   8 AC_CANONICAL_HOST
   9 AC_C_BIGENDIAN
  10
  11 # Checks for programs.
  12 AC_PROG_AWK
  13 AC_PROG_CPP
  14 AC_PROG_RANLIB
  15 AC_PROG_INSTALL
  16 AC_PATH_PROG(AR, ar)
  17 AC_PATH_PROGS(PERL, perl5 perl)
  18 AC_PATH_PROG(SED, sed)
  19 AC_SUBST(PERL)
  20 AC_PATH_PROG(ENT, ent)
  21 AC_SUBST(ENT)
  22 AC_PATH_PROG(TEST_MINUS_S_SH, bash)
  23 AC_PATH_PROG(TEST_MINUS_S_SH, ksh)
  24 AC_PATH_PROG(TEST_MINUS_S_SH, sh)
  25 AC_PATH_PROG(SH, sh)
  26
  27 # System features
  28 AC_SYS_LARGEFILE
  29
  30 if test -z "$AR" ; then
  31         AC_MSG_ERROR([*** 'ar' missing, please install or fix your \$PATH ***])
  32 fi
  33
  34 # Use LOGIN_PROGRAM from environment if possible
  35 if test ! -z "$LOGIN_PROGRAM" ; then
  36         AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM")
  37 else
  38         # Search for login
  39         AC_PATH_PROG(LOGIN_PROGRAM_FALLBACK, login)
  40         if test ! -z "$LOGIN_PROGRAM_FALLBACK" ; then
  41                 AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM_FALLBACK")
  42         fi
  43 fi
  44
  45 if test -z "$LD" ; then
  46         LD=$CC
  47 fi
  48 AC_SUBST(LD)
  49
  50 AC_C_INLINE
  51 if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
  52         CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wno-uninitialized"
  53 fi
  54
  55 AC_ARG_WITH(rpath,
  56         [  --without-rpath         Disable auto-added -R linker paths],
  57         [
  58                 if test "x$withval" = "xno" ; then
  59                         need_dash_r=""
  60                 fi
  61                 if test "x$withval" = "xyes" ; then
  62                         need_dash_r=1
  63                 fi
  64         ]
  65 )
  66
  67 # Check for some target-specific stuff
  68 case "$host" in
  69 *-*-aix*)
  70         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
  71         LDFLAGS="$LDFLAGS -L/usr/local/lib"
  72         AC_MSG_CHECKING([how to specify blibpath for linker ($LD)])
  73         if (test -z "$blibpath"); then
  74                 blibpath="/usr/lib:/lib:/usr/local/lib"
  75         fi
  76         saved_LDFLAGS="$LDFLAGS"
  77         for tryflags in -blibpath: -Wl,-blibpath: -Wl,-rpath, ;do
  78                 if (test -z "$blibflags"); then
  79                         LDFLAGS="$saved_LDFLAGS $tryflags$blibpath"
  80                         AC_TRY_LINK([], [], [blibflags=$tryflags])
  81                 fi
  82         done
  83         if (test -z "$blibflags"); then
  84                 AC_MSG_RESULT(not found)
  85                 AC_MSG_ERROR([*** must be able to specify blibpath on AIX - check config.log])
  86         else
  87                 AC_MSG_RESULT($blibflags)
  88         fi
  89         LDFLAGS="$saved_LDFLAGS"
  90         dnl Check for authenticate.  Might be in libs.a on older AIXes
  91         AC_CHECK_FUNC(authenticate, [AC_DEFINE(WITH_AIXAUTHENTICATE)],
  92                 [AC_CHECK_LIB(s,authenticate,
  93                         [ AC_DEFINE(WITH_AIXAUTHENTICATE)
  94                                 LIBS="$LIBS -ls"
  95                         ])
  96                 ])
  97         dnl Check if loginfailed is declared and takes 4 arguments (AIX >= 5.2)
  98         AC_CHECK_DECL(loginfailed,
  99                  [AC_MSG_CHECKING(if loginfailed takes 4 arguments)
 100                   AC_TRY_COMPILE(
 101                         [#include <usersec.h>],
 102                         [(void)loginfailed("user","host","tty",0);],
 103                         [AC_MSG_RESULT(yes)
 104                          AC_DEFINE(AIX_LOGINFAILED_4ARG)],
 105                         [AC_MSG_RESULT(no)]
 106                 )],
 107                 [],
 108                 [#include <usersec.h>]
 109         )
 110         AC_CHECK_FUNCS(setauthdb)
 111         AC_DEFINE(BROKEN_GETADDRINFO)
 112         AC_DEFINE(BROKEN_REALPATH)
 113         AC_DEFINE(SETEUID_BREAKS_SETUID)
 114         AC_DEFINE(BROKEN_SETREUID)
 115         AC_DEFINE(BROKEN_SETREGID)
 116         dnl AIX handles lastlog as part of its login message
 117         AC_DEFINE(DISABLE_LASTLOG)
 118         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 119         AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
 120         ;;
 121 *-*-cygwin*)
 122         check_for_libcrypt_later=1
 123         LIBS="$LIBS /usr/lib/textmode.o"
 124         AC_DEFINE(HAVE_CYGWIN)
 125         AC_DEFINE(USE_PIPES)
 126         AC_DEFINE(DISABLE_SHADOW)
 127         AC_DEFINE(IP_TOS_IS_BROKEN)
 128         AC_DEFINE(NO_X11_UNIX_SOCKETS)
 129         AC_DEFINE(NO_IPPORT_RESERVED_CONCEPT)
 130         AC_DEFINE(DISABLE_FD_PASSING)
 131         AC_DEFINE(SETGROUPS_NOOP)
 132         ;;
 133 *-*-dgux*)
 134         AC_DEFINE(IP_TOS_IS_BROKEN)
 135         ;;
 136 *-*-darwin*)
 137         AC_MSG_CHECKING(if we have working getaddrinfo)
 138         AC_TRY_RUN([#include <mach-o/dyld.h>
 139 main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
 140                 exit(0);
 141         else
 142                 exit(1);
 143 }], [AC_MSG_RESULT(working)],
 144         [AC_MSG_RESULT(buggy)
 145         AC_DEFINE(BROKEN_GETADDRINFO)],
 146         [AC_MSG_RESULT(assume it is working)])
 147         AC_DEFINE(SETEUID_BREAKS_SETUID)
 148         AC_DEFINE(BROKEN_SETREUID)
 149         AC_DEFINE(BROKEN_SETREGID)
 150         ;;
 151 *-*-hpux10.26)
 152         if test -z "$GCC"; then
 153                 CFLAGS="$CFLAGS -Ae"
 154         fi
 155         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 156         IPADDR_IN_DISPLAY=yes
 157         AC_DEFINE(HAVE_SECUREWARE)
 158         AC_DEFINE(USE_PIPES)
 159         AC_DEFINE(LOGIN_NO_ENDOPT)
 160         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 161         AC_DEFINE(DISABLE_UTMP)
 162         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 163         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 164         LIBS="$LIBS -lsec -lsecpw"
 165         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 166         disable_ptmx_check=yes
 167         ;;
 168 *-*-hpux10*)
 169         if test -z "$GCC"; then
 170                 CFLAGS="$CFLAGS -Ae"
 171         fi
 172         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 173         IPADDR_IN_DISPLAY=yes
 174         AC_DEFINE(USE_PIPES)
 175         AC_DEFINE(LOGIN_NO_ENDOPT)
 176         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 177         AC_DEFINE(DISABLE_UTMP)
 178         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 179         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 180         LIBS="$LIBS -lsec"
 181         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 182         ;;
 183 *-*-hpux11*)
 184         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 185         IPADDR_IN_DISPLAY=yes
 186         AC_DEFINE(PAM_SUN_CODEBASE)
 187         AC_DEFINE(USE_PIPES)
 188         AC_DEFINE(LOGIN_NO_ENDOPT)
 189         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 190         AC_DEFINE(DISABLE_UTMP)
 191         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 192         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 193         LIBS="$LIBS -lsec"
 194         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 195         ;;
 196 *-*-irix5*)
 197         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 198         LDFLAGS="$LDFLAGS"
 199         PATH="$PATH:/usr/etc"
 200         AC_DEFINE(BROKEN_INET_NTOA)
 201         AC_DEFINE(SETEUID_BREAKS_SETUID)
 202         AC_DEFINE(BROKEN_SETREUID)
 203         AC_DEFINE(BROKEN_SETREGID)
 204         AC_DEFINE(WITH_ABBREV_NO_TTY)
 205         AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
 206         ;;
 207 *-*-irix6*)
 208         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 209         LDFLAGS="$LDFLAGS"
 210         PATH="$PATH:/usr/etc"
 211         AC_DEFINE(WITH_IRIX_ARRAY)
 212         AC_DEFINE(WITH_IRIX_PROJECT)
 213         AC_DEFINE(WITH_IRIX_AUDIT)
 214         AC_CHECK_FUNC(jlimit_startjob, [AC_DEFINE(WITH_IRIX_JOBS)])
 215         AC_DEFINE(BROKEN_INET_NTOA)
 216         AC_DEFINE(SETEUID_BREAKS_SETUID)
 217         AC_DEFINE(BROKEN_SETREUID)
 218         AC_DEFINE(BROKEN_SETREGID)
 219         AC_DEFINE(WITH_ABBREV_NO_TTY)
 220         AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
 221         ;;
 222 *-*-linux*)
 223         no_dev_ptmx=1
 224         check_for_libcrypt_later=1
 225         check_for_openpty_ctty_bug=1
 226         AC_DEFINE(DONT_TRY_OTHER_AF)
 227         AC_DEFINE(PAM_TTY_KLUDGE)
 228         AC_DEFINE(LOCKED_PASSWD_PREFIX, "!!")
 229         AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
 230         inet6_default_4in6=yes
 231         case `uname -r` in
 232         1.*|2.0.*)
 233                 AC_DEFINE(BROKEN_CMSG_TYPE)
 234                 ;;
 235         esac
 236         ;;
 237 mips-sony-bsd|mips-sony-newsos4)
 238         AC_DEFINE(HAVE_NEWS4)
 239         SONY=1
 240         ;;
 241 *-*-netbsd*)
 242         check_for_libcrypt_before=1
 243         if test "x$withval" != "xno" ; then
 244                 need_dash_r=1
 245         fi
 246         ;;
 247 *-*-freebsd*)
 248         check_for_libcrypt_later=1
 249         ;;
 250 *-*-bsdi*)
 251         AC_DEFINE(SETEUID_BREAKS_SETUID)
 252         AC_DEFINE(BROKEN_SETREUID)
 253         AC_DEFINE(BROKEN_SETREGID)
 254         ;;
 255 *-next-*)
 256         conf_lastlog_location="/usr/adm/lastlog"
 257         conf_utmp_location=/etc/utmp
 258         conf_wtmp_location=/usr/adm/wtmp
 259         MAIL=/usr/spool/mail
 260         AC_DEFINE(HAVE_NEXT)
 261         AC_DEFINE(BROKEN_REALPATH)
 262         AC_DEFINE(USE_PIPES)
 263         AC_DEFINE(BROKEN_SAVED_UIDS)
 264         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 265         CFLAGS="$CFLAGS"
 266         ;;
 267 *-*-solaris*)
 268         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 269         if test "x$withval" = "xno" ; then
 270                 LDFLAGS="$LDFLAGS -L/usr/local/lib"
 271         else
 272                 LDFLAGS="$LDFLAGS -L/usr/local/lib -R/usr/local/lib"
 273                 need_dash_r=1
 274         fi
 275         AC_DEFINE(PAM_SUN_CODEBASE)
 276         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 277         AC_DEFINE(LOGIN_NEEDS_TERM)
 278         AC_DEFINE(PAM_TTY_KLUDGE)
 279         AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
 280         # Pushing STREAMS modules will cause sshd to acquire a controlling tty.
 281         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 282         external_path_file=/etc/default/login
 283         # hardwire lastlog location (can't detect it on some versions)
 284         conf_lastlog_location="/var/adm/lastlog"
 285         AC_MSG_CHECKING(for obsolete utmp and wtmp in solaris2.x)
 286         sol2ver=`echo "$host"| sed -e 's/.*[[0-9]]\.//'`
 287         if test "$sol2ver" -ge 8; then
 288                 AC_MSG_RESULT(yes)
 289                 AC_DEFINE(DISABLE_UTMP)
 290                 AC_DEFINE(DISABLE_WTMP)
 291         else
 292                 AC_MSG_RESULT(no)
 293         fi
 294         ;;
 295 *-*-sunos4*)
 296         CPPFLAGS="$CPPFLAGS -DSUNOS4"
 297         AC_CHECK_FUNCS(getpwanam)
 298         AC_DEFINE(PAM_SUN_CODEBASE)
 299         conf_utmp_location=/etc/utmp
 300         conf_wtmp_location=/var/adm/wtmp
 301         conf_lastlog_location=/var/adm/lastlog
 302         AC_DEFINE(USE_PIPES)
 303         ;;
 304 *-ncr-sysv*)
 305         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 306         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 307         LIBS="$LIBS -lc89"
 308         AC_DEFINE(USE_PIPES)
 309         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 310         AC_DEFINE(SETEUID_BREAKS_SETUID)
 311         AC_DEFINE(BROKEN_SETREUID)
 312         AC_DEFINE(BROKEN_SETREGID)
 313         ;;
 314 *-sni-sysv*)
 315         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 316         # /usr/ucblib MUST NOT be searched on ReliantUNIX
 317         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 318         AC_CHECK_LIB(dl, dlsym, ,)
 319         IPADDR_IN_DISPLAY=yes
 320         AC_DEFINE(USE_PIPES)
 321         AC_DEFINE(IP_TOS_IS_BROKEN)
 322         AC_DEFINE(SETEUID_BREAKS_SETUID)
 323         AC_DEFINE(BROKEN_SETREUID)
 324         AC_DEFINE(BROKEN_SETREGID)
 325         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 326         external_path_file=/etc/default/login
 327         # /usr/ucblib/libucb.a no longer needed on ReliantUNIX
 328         # Attention: always take care to bind libsocket and libnsl before libc,
 329         # otherwise you will find lots of "SIOCGPGRP errno 22" on syslog
 330         ;;
 331 *-*-sysv4.2*)
 332         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 333         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 334         AC_DEFINE(USE_PIPES)
 335         AC_DEFINE(SETEUID_BREAKS_SETUID)
 336         AC_DEFINE(BROKEN_SETREUID)
 337         AC_DEFINE(BROKEN_SETREGID)
 338         ;;
 339 *-*-sysv5*)
 340         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 341         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 342         AC_DEFINE(USE_PIPES)
 343         AC_DEFINE(SETEUID_BREAKS_SETUID)
 344         AC_DEFINE(BROKEN_SETREUID)
 345         AC_DEFINE(BROKEN_SETREGID)
 346         ;;
 347 *-*-sysv*)
 348         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 349         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 350         ;;
 351 *-*-sco3.2v4*)
 352         CPPFLAGS="$CPPFLAGS -Dftruncate=chsize -I/usr/local/include"
 353         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 354         LIBS="$LIBS -los -lprot -lx -ltinfo -lm"
 355         RANLIB=true
 356         no_dev_ptmx=1
 357         AC_DEFINE(BROKEN_SYS_TERMIO_H)
 358         AC_DEFINE(USE_PIPES)
 359         AC_DEFINE(HAVE_SECUREWARE)
 360         AC_DEFINE(DISABLE_SHADOW)
 361         AC_DEFINE(BROKEN_SAVED_UIDS)
 362         AC_DEFINE(WITH_ABBREV_NO_TTY)
 363         AC_CHECK_FUNCS(getluid setluid)
 364         MANTYPE=man
 365         do_sco3_extra_lib_check=yes
 366         ;;
 367 *-*-sco3.2v5*)
 368         if test -z "$GCC"; then
 369                 CFLAGS="$CFLAGS -belf"
 370         fi
 371         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 372         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 373         LIBS="$LIBS -lprot -lx -ltinfo -lm"
 374         no_dev_ptmx=1
 375         AC_DEFINE(USE_PIPES)
 376         AC_DEFINE(HAVE_SECUREWARE)
 377         AC_DEFINE(DISABLE_SHADOW)
 378         AC_DEFINE(DISABLE_FD_PASSING)
 379         AC_DEFINE(SETEUID_BREAKS_SETUID)
 380         AC_DEFINE(BROKEN_SETREUID)
 381         AC_DEFINE(BROKEN_SETREGID)
 382         AC_DEFINE(WITH_ABBREV_NO_TTY)
 383         AC_CHECK_FUNCS(getluid setluid)
 384         MANTYPE=man
 385         ;;
 386 *-*-unicosmk*)
 387         AC_DEFINE(USE_PIPES)
 388         AC_DEFINE(DISABLE_FD_PASSING)
 389         LDFLAGS="$LDFLAGS"
 390         LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
 391         MANTYPE=cat
 392         ;;
 393 *-*-unicosmp*)
 394         AC_DEFINE(WITH_ABBREV_NO_TTY)
 395         AC_DEFINE(USE_PIPES)
 396         AC_DEFINE(DISABLE_FD_PASSING)
 397         LDFLAGS="$LDFLAGS"
 398         LIBS="$LIBS -lgen -lacid"
 399         MANTYPE=cat
 400         ;;
 401 *-*-unicos*)
 402         AC_DEFINE(USE_PIPES)
 403         AC_DEFINE(DISABLE_FD_PASSING)
 404         AC_DEFINE(NO_SSH_LASTLOG)
 405         LDFLAGS="$LDFLAGS -Wl,-Dmsglevel=334:fatal"
 406         LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
 407         MANTYPE=cat
 408         ;;
 409 *-dec-osf*)
 410         AC_MSG_CHECKING(for Digital Unix SIA)
 411         no_osfsia=""
 412         AC_ARG_WITH(osfsia,
 413                 [  --with-osfsia           Enable Digital Unix SIA],
 414                 [
 415                         if test "x$withval" = "xno" ; then
 416                                 AC_MSG_RESULT(disabled)
 417                                 no_osfsia=1
 418                         fi
 419                 ],
 420         )
 421         if test -z "$no_osfsia" ; then
 422                 if test -f /etc/sia/matrix.conf; then
 423                         AC_MSG_RESULT(yes)
 424                         AC_DEFINE(HAVE_OSF_SIA)
 425                         AC_DEFINE(DISABLE_LOGIN)
 426                         AC_DEFINE(DISABLE_FD_PASSING)
 427                         LIBS="$LIBS -lsecurity -ldb -lm -laud"
 428                 else
 429                         AC_MSG_RESULT(no)
 430                         AC_DEFINE(LOCKED_PASSWD_SUBSTR, "Nologin")
 431                 fi
 432         fi
 433         AC_DEFINE(BROKEN_GETADDRINFO)
 434         AC_DEFINE(SETEUID_BREAKS_SETUID)
 435         AC_DEFINE(BROKEN_SETREUID)
 436         AC_DEFINE(BROKEN_SETREGID)
 437         ;;
 438
 439 *-*-nto-qnx)
 440         AC_DEFINE(USE_PIPES)
 441         AC_DEFINE(NO_X11_UNIX_SOCKETS)
 442         AC_DEFINE(MISSING_NFDBITS)
 443         AC_DEFINE(MISSING_HOWMANY)
 444         AC_DEFINE(MISSING_FD_MASK)
 445         ;;
 446 esac
 447
 448 # Allow user to specify flags
 449 AC_ARG_WITH(cflags,
 450         [  --with-cflags           Specify additional flags to pass to compiler],
 451         [
 452                 if test "x$withval" != "xno" ; then
 453                         CFLAGS="$CFLAGS $withval"
 454                 fi
 455         ]
 456 )
 457 AC_ARG_WITH(cppflags,
 458         [  --with-cppflags         Specify additional flags to pass to preprocessor] ,
 459         [
 460                 if test "x$withval" != "xno"; then
 461                         CPPFLAGS="$CPPFLAGS $withval"
 462                 fi
 463         ]
 464 )
 465 AC_ARG_WITH(ldflags,
 466         [  --with-ldflags          Specify additional flags to pass to linker],
 467         [
 468                 if test "x$withval" != "xno" ; then
 469                         LDFLAGS="$LDFLAGS $withval"
 470                 fi
 471         ]
 472 )
 473 AC_ARG_WITH(libs,
 474         [  --with-libs             Specify additional libraries to link with],
 475         [
 476                 if test "x$withval" != "xno" ; then
 477                         LIBS="$LIBS $withval"
 478                 fi
 479         ]
 480 )
 481
 482 AC_MSG_CHECKING(compiler and flags for sanity)
 483 AC_TRY_RUN([
 484 #include <stdio.h>
 485 int main(){exit(0);}
 486         ],
 487         [       AC_MSG_RESULT(yes) ],
 488         [
 489                 AC_MSG_RESULT(no)
 490                 AC_MSG_ERROR([*** compiler cannot create working executables, check config.log ***])
 491         ]
 492 )
 493
 494 # Checks for header files.
 495 AC_CHECK_HEADERS(bstring.h crypt.h endian.h features.h floatingpoint.h \
 496         getopt.h glob.h ia.h lastlog.h limits.h login.h \
 497         login_cap.h maillock.h netdb.h netgroup.h \
 498         netinet/in_systm.h paths.h pty.h readpassphrase.h \
 499         rpc/types.h security/pam_appl.h shadow.h stddef.h stdint.h \
 500         strings.h sys/strtio.h sys/audit.h sys/bitypes.h sys/bsdtty.h \
 501         sys/cdefs.h sys/mman.h sys/pstat.h sys/select.h sys/stat.h \
 502         sys/stropts.h sys/sysmacros.h sys/time.h sys/timers.h \
 503         sys/un.h time.h tmpdir.h ttyent.h usersec.h \
 504         util.h utime.h utmp.h utmpx.h vis.h)
 505
 506 # Checks for libraries.
 507 AC_CHECK_FUNC(yp_match, , AC_CHECK_LIB(nsl, yp_match))
 508 AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
 509
 510 dnl SCO OS3 needs this for libwrap
 511 if test "x$with_tcp_wrappers" != "xno" ; then
 512     if test "x$do_sco3_extra_lib_check" = "xyes" ; then
 513         AC_CHECK_LIB(rpc, innetgr, LIBS="-lrpc -lyp -lrpc $LIBS" , , -lyp -lrpc)
 514     fi
 515 fi
 516
 517 dnl IRIX and Solaris 2.5.1 have dirname() in libgen
 518 AC_CHECK_FUNCS(dirname, [AC_CHECK_HEADERS(libgen.h)] ,[
 519         AC_CHECK_LIB(gen, dirname,[
 520                 AC_CACHE_CHECK([for broken dirname],
 521                         ac_cv_have_broken_dirname, [
 522                         save_LIBS="$LIBS"
 523                         LIBS="$LIBS -lgen"
 524                         AC_TRY_RUN(
 525                                 [
 526 #include <libgen.h>
 527 #include <string.h>
 528
 529 int main(int argc, char **argv) {
 530     char *s, buf[32];
 531
 532     strncpy(buf,"/etc", 32);
 533     s = dirname(buf);
 534     if (!s || strncmp(s, "/", 32) != 0) {
 535         exit(1);
 536     } else {
 537         exit(0);
 538     }
 539 }
 540                                 ],
 541                                 [ ac_cv_have_broken_dirname="no" ],
 542                                 [ ac_cv_have_broken_dirname="yes" ]
 543                         )
 544                         LIBS="$save_LIBS"
 545                 ])
 546                 if test "x$ac_cv_have_broken_dirname" = "xno" ; then
 547                         LIBS="$LIBS -lgen"
 548                         AC_DEFINE(HAVE_DIRNAME)
 549                         AC_CHECK_HEADERS(libgen.h)
 550                 fi
 551         ])
 552 ])
 553
 554 AC_CHECK_FUNC(getspnam, ,
 555         AC_CHECK_LIB(gen, getspnam, LIBS="$LIBS -lgen"))
 556 AC_SEARCH_LIBS(basename, gen, AC_DEFINE(HAVE_BASENAME))
 557
 558 dnl zlib is required
 559 AC_ARG_WITH(zlib,
 560         [  --with-zlib=PATH        Use zlib in PATH],
 561         [
 562                 if test "x$withval" = "xno" ; then
 563                         AC_MSG_ERROR([*** zlib is required ***])
 564                 fi
 565                 if test -d "$withval/lib"; then
 566                         if test -n "${need_dash_r}"; then
 567                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 568                         else
 569                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 570                         fi
 571                 else
 572                         if test -n "${need_dash_r}"; then
 573                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 574                         else
 575                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 576                         fi
 577                 fi
 578                 if test -d "$withval/include"; then
 579                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 580                 else
 581                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 582                 fi
 583         ]
 584 )
 585
 586 AC_CHECK_LIB(z, deflate, ,AC_MSG_ERROR([*** zlib missing - please install first or check config.log ***]))
 587
 588 dnl UnixWare 2.x
 589 AC_CHECK_FUNC(strcasecmp,
 590         [], [ AC_CHECK_LIB(resolv, strcasecmp, LIBS="$LIBS -lresolv") ]
 591 )
 592 AC_CHECK_FUNC(utimes,
 593         [], [ AC_CHECK_LIB(c89, utimes, [AC_DEFINE(HAVE_UTIMES)
 594                                         LIBS="$LIBS -lc89"]) ]
 595 )
 596
 597 dnl    Checks for libutil functions
 598 AC_CHECK_HEADERS(libutil.h)
 599 AC_SEARCH_LIBS(login, util bsd, [AC_DEFINE(HAVE_LOGIN)])
 600 AC_CHECK_FUNCS(logout updwtmp logwtmp)
 601
 602 AC_FUNC_STRFTIME
 603
 604 # Check for ALTDIRFUNC glob() extension
 605 AC_MSG_CHECKING(for GLOB_ALTDIRFUNC support)
 606 AC_EGREP_CPP(FOUNDIT,
 607         [
 608                 #include <glob.h>
 609                 #ifdef GLOB_ALTDIRFUNC
 610                 FOUNDIT
 611                 #endif
 612         ],
 613         [
 614                 AC_DEFINE(GLOB_HAS_ALTDIRFUNC)
 615                 AC_MSG_RESULT(yes)
 616         ],
 617         [
 618                 AC_MSG_RESULT(no)
 619         ]
 620 )
 621
 622 # Check for g.gl_matchc glob() extension
 623 AC_MSG_CHECKING(for gl_matchc field in glob_t)
 624 AC_EGREP_CPP(FOUNDIT,
 625         [
 626                 #include <glob.h>
 627                 int main(void){glob_t g; g.gl_matchc = 1;}
 628         ],
 629         [
 630                 AC_DEFINE(GLOB_HAS_GL_MATCHC)
 631                 AC_MSG_RESULT(yes)
 632         ],
 633         [
 634                 AC_MSG_RESULT(no)
 635         ]
 636 )
 637
 638 AC_MSG_CHECKING([whether struct dirent allocates space for d_name])
 639 AC_TRY_RUN(
 640         [
 641 #include <sys/types.h>
 642 #include <dirent.h>
 643 int main(void){struct dirent d;exit(sizeof(d.d_name)<=sizeof(char));}
 644         ],
 645         [AC_MSG_RESULT(yes)],
 646         [
 647                 AC_MSG_RESULT(no)
 648                 AC_DEFINE(BROKEN_ONE_BYTE_DIRENT_D_NAME)
 649         ]
 650 )
 651
 652 # Check whether user wants S/Key support
 653 SKEY_MSG="no"
 654 AC_ARG_WITH(skey,
 655         [  --with-skey[[=PATH]]      Enable S/Key support
 656                             (optionally in PATH)],
 657         [
 658                 if test "x$withval" != "xno" ; then
 659
 660                         if test "x$withval" != "xyes" ; then
 661                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
 662                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
 663                         fi
 664
 665                         AC_DEFINE(SKEY)
 666                         LIBS="-lskey $LIBS"
 667                         SKEY_MSG="yes"
 668
 669                         AC_MSG_CHECKING([for s/key support])
 670                         AC_TRY_RUN(
 671                                 [
 672 #include <stdio.h>
 673 #include <skey.h>
 674 int main() { char *ff = skey_keyinfo(""); ff=""; exit(0); }
 675                                 ],
 676                                 [AC_MSG_RESULT(yes)],
 677                                 [
 678                                         AC_MSG_RESULT(no)
 679                                         AC_MSG_ERROR([** Incomplete or missing s/key libraries.])
 680                                 ])
 681                 fi
 682         ]
 683 )
 684
 685 # Check whether user wants TCP wrappers support
 686 TCPW_MSG="no"
 687 AC_ARG_WITH(tcp-wrappers,
 688         [  --with-tcp-wrappers[[=PATH]]      Enable tcpwrappers support
 689                             (optionally in PATH)],
 690         [
 691                 if test "x$withval" != "xno" ; then
 692                         saved_LIBS="$LIBS"
 693                         saved_LDFLAGS="$LDFLAGS"
 694                         saved_CPPFLAGS="$CPPFLAGS"
 695                         if test -n "${withval}" -a "${withval}" != "yes"; then
 696                                 if test -d "${withval}/lib"; then
 697                                         if test -n "${need_dash_r}"; then
 698                                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 699                                         else
 700                                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 701                                         fi
 702                                 else
 703                                         if test -n "${need_dash_r}"; then
 704                                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 705                                         else
 706                                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 707                                         fi
 708                                 fi
 709                                 if test -d "${withval}/include"; then
 710                                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 711                                 else
 712                                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 713                                 fi
 714                         fi
 715                         LIBWRAP="-lwrap"
 716                         LIBS="$LIBWRAP $LIBS"
 717                         AC_MSG_CHECKING(for libwrap)
 718                         AC_TRY_LINK(
 719                                 [
 720 #include <tcpd.h>
 721                                         int deny_severity = 0, allow_severity = 0;
 722                                 ],
 723                                 [hosts_access(0);],
 724                                 [
 725                                         AC_MSG_RESULT(yes)
 726                                         AC_DEFINE(LIBWRAP)
 727                                         AC_SUBST(LIBWRAP)
 728                                         TCPW_MSG="yes"
 729                                 ],
 730                                 [
 731                                         AC_MSG_ERROR([*** libwrap missing])
 732                                 ]
 733                         )
 734                         LIBS="$saved_LIBS"
 735                 fi
 736         ]
 737 )
 738
 739 dnl    Checks for library functions. Please keep in alphabetical order
 740 AC_CHECK_FUNCS(\
 741         arc4random __b64_ntop b64_ntop __b64_pton b64_pton \
 742         bcopy bindresvport_sa clock fchmod fchown freeaddrinfo futimes \
 743         getaddrinfo getcwd getgrouplist getnameinfo getopt \
 744         getpeereid _getpty getrlimit getttyent glob inet_aton \
 745         inet_ntoa inet_ntop innetgr login_getcapbool md5_crypt memmove \
 746         mkdtemp mmap ngetaddrinfo nsleep ogetaddrinfo openlog_r openpty \
 747         pstat readpassphrase realpath recvmsg rresvport_af sendmsg \
 748         setdtablesize setegid setenv seteuid setgroups setlogin setpcred \
 749         setproctitle setregid setresgid setresuid setreuid setrlimit \
 750         setsid setvbuf sigaction sigvec snprintf socketpair strerror \
 751         strlcat strlcpy strmode strnvis strtoul sysconf tcgetpgrp \
 752         truncate utimes vhangup vsnprintf waitpid \
 753 )
 754
 755 # IRIX has a const char return value for gai_strerror()
 756 AC_CHECK_FUNCS(gai_strerror,[
 757         AC_DEFINE(HAVE_GAI_STRERROR)
 758         AC_TRY_COMPILE([
 759 #include <sys/types.h>
 760 #include <sys/socket.h>
 761 #include <netdb.h>
 762
 763 const char *gai_strerror(int);],[
 764 char *str;
 765
 766 str = gai_strerror(0);],[
 767                 AC_DEFINE(HAVE_CONST_GAI_STRERROR_PROTO, 1,
 768                 [Define if gai_strerror() returns const char *])])])
 769
 770 AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP))
 771
 772 dnl Make sure prototypes are defined for these before using them.
 773 AC_CHECK_DECL(strsep, [AC_CHECK_FUNCS(strsep)])
 774 AC_CHECK_DECL(getrusage, [AC_CHECK_FUNCS(getrusage)])
 775
 776 dnl tcsendbreak might be a macro
 777 AC_CHECK_DECL(tcsendbreak,
 778         [AC_DEFINE(HAVE_TCSENDBREAK)],
 779         [AC_CHECK_FUNCS(tcsendbreak)],
 780         [#include <termios.h>]
 781 )
 782
 783 dnl Some platorms have setresuid that isn't implemented
 784 AC_MSG_CHECKING(if setresuid seems to work)
 785 AC_TRY_RUN([
 786 #include <stdlib.h>
 787 #include <errno.h>
 788 int main(){errno=0; setresuid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
 789         ],
 790         [AC_MSG_RESULT(yes)],
 791         [AC_DEFINE(BROKEN_SETRESUID),
 792          AC_MSG_RESULT(not implemented)]
 793 )
 794
 795 dnl Some platorms have setresgid that isn't implemented
 796 AC_MSG_CHECKING(if setresgid seems to work)
 797 AC_TRY_RUN([
 798 #include <stdlib.h>
 799 #include <errno.h>
 800 int main(){errno=0; setresgid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
 801         ],
 802         [AC_MSG_RESULT(yes)],
 803         [AC_DEFINE(BROKEN_SETRESGID)
 804          AC_MSG_RESULT(not implemented)]
 805 )
 806
 807 dnl    Checks for time functions
 808 AC_CHECK_FUNCS(gettimeofday time)
 809 dnl    Checks for utmp functions
 810 AC_CHECK_FUNCS(endutent getutent getutid getutline pututline setutent)
 811 AC_CHECK_FUNCS(utmpname)
 812 dnl    Checks for utmpx functions
 813 AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
 814 AC_CHECK_FUNCS(setutxent utmpxname)
 815
 816 AC_CHECK_FUNC(daemon,
 817         [AC_DEFINE(HAVE_DAEMON)],
 818         [AC_CHECK_LIB(bsd, daemon, [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 819 )
 820
 821 AC_CHECK_FUNC(getpagesize,
 822         [AC_DEFINE(HAVE_GETPAGESIZE)],
 823         [AC_CHECK_LIB(ucb, getpagesize, [LIBS="$LIBS -lucb"; AC_DEFINE(HAVE_GETPAGESIZE)])]
 824 )
 825
 826 # Check for broken snprintf
 827 if test "x$ac_cv_func_snprintf" = "xyes" ; then
 828         AC_MSG_CHECKING([whether snprintf correctly terminates long strings])
 829         AC_TRY_RUN(
 830                 [
 831 #include <stdio.h>
 832 int main(void){char b[5];snprintf(b,5,"123456789");exit(b[4]!='\0');}
 833                 ],
 834                 [AC_MSG_RESULT(yes)],
 835                 [
 836                         AC_MSG_RESULT(no)
 837                         AC_DEFINE(BROKEN_SNPRINTF)
 838                         AC_MSG_WARN([****** Your snprintf() function is broken, complain to your vendor])
 839                 ]
 840         )
 841 fi
 842
 843 dnl see whether mkstemp() requires XXXXXX
 844 if test "x$ac_cv_func_mkdtemp" = "xyes" ; then
 845 AC_MSG_CHECKING([for (overly) strict mkstemp])
 846 AC_TRY_RUN(
 847         [
 848 #include <stdlib.h>
 849 main() { char template[]="conftest.mkstemp-test";
 850 if (mkstemp(template) == -1)
 851         exit(1);
 852 unlink(template); exit(0);
 853 }
 854         ],
 855         [
 856                 AC_MSG_RESULT(no)
 857         ],
 858         [
 859                 AC_MSG_RESULT(yes)
 860                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 861         ],
 862         [
 863                 AC_MSG_RESULT(yes)
 864                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 865         ]
 866 )
 867 fi
 868
 869 dnl make sure that openpty does not reacquire controlling terminal
 870 if test ! -z "$check_for_openpty_ctty_bug"; then
 871         AC_MSG_CHECKING(if openpty correctly handles controlling tty)
 872         AC_TRY_RUN(
 873                 [
 874 #include <stdio.h>
 875 #include <sys/fcntl.h>
 876 #include <sys/types.h>
 877 #include <sys/wait.h>
 878
 879 int
 880 main()
 881 {
 882         pid_t pid;
 883         int fd, ptyfd, ttyfd, status;
 884
 885         pid = fork();
 886         if (pid < 0) {          /* failed */
 887                 exit(1);
 888         } else if (pid > 0) {   /* parent */
 889                 waitpid(pid, &status, 0);
 890                 if (WIFEXITED(status))
 891                         exit(WEXITSTATUS(status));
 892                 else
 893                         exit(2);
 894         } else {                /* child */
 895                 close(0); close(1); close(2);
 896                 setsid();
 897                 openpty(&ptyfd, &ttyfd, NULL, NULL, NULL);
 898                 fd = open("/dev/tty", O_RDWR | O_NOCTTY);
 899                 if (fd >= 0)
 900                         exit(3);        /* Acquired ctty: broken */
 901                 else
 902                         exit(0);        /* Did not acquire ctty: OK */
 903         }
 904 }
 905                 ],
 906                 [
 907                         AC_MSG_RESULT(yes)
 908                 ],
 909                 [
 910                         AC_MSG_RESULT(no)
 911                         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 912                 ]
 913         )
 914 fi
 915
 916 AC_FUNC_GETPGRP
 917
 918 # Check for PAM libs
 919 PAM_MSG="no"
 920 AC_ARG_WITH(pam,
 921         [  --with-pam              Enable PAM support ],
 922         [
 923                 if test "x$withval" != "xno" ; then
 924                         if test "x$ac_cv_header_security_pam_appl_h" != "xyes" ; then
 925                                 AC_MSG_ERROR([PAM headers not found])
 926                         fi
 927
 928                         AC_CHECK_LIB(dl, dlopen, , )
 929                         AC_CHECK_LIB(pam, pam_set_item, , AC_MSG_ERROR([*** libpam missing]))
 930                         AC_CHECK_FUNCS(pam_getenvlist)
 931                         AC_CHECK_FUNCS(pam_putenv)
 932
 933                         PAM_MSG="yes"
 934
 935                         AC_DEFINE(USE_PAM)
 936                         if test $ac_cv_lib_dl_dlopen = yes; then
 937                                 LIBPAM="-lpam -ldl"
 938                         else
 939                                 LIBPAM="-lpam"
 940                         fi
 941                         AC_SUBST(LIBPAM)
 942                 fi
 943         ]
 944 )
 945
 946 # Check for older PAM
 947 if test "x$PAM_MSG" = "xyes" ; then
 948         # Check PAM strerror arguments (old PAM)
 949         AC_MSG_CHECKING([whether pam_strerror takes only one argument])
 950         AC_TRY_COMPILE(
 951                 [
 952 #include <stdlib.h>
 953 #include <security/pam_appl.h>
 954                 ],
 955                 [(void)pam_strerror((pam_handle_t *)NULL, -1);],
 956                 [AC_MSG_RESULT(no)],
 957                 [
 958                         AC_DEFINE(HAVE_OLD_PAM)
 959                         AC_MSG_RESULT(yes)
 960                         PAM_MSG="yes (old library)"
 961                 ]
 962         )
 963 fi
 964
 965 # Some systems want crypt() from libcrypt, *not* the version in OpenSSL,
 966 # because the system crypt() is more featureful.
 967 if test "x$check_for_libcrypt_before" = "x1"; then
 968         AC_CHECK_LIB(crypt, crypt)
 969 fi
 970
 971 # Search for OpenSSL
 972 saved_CPPFLAGS="$CPPFLAGS"
 973 saved_LDFLAGS="$LDFLAGS"
 974 AC_ARG_WITH(ssl-dir,
 975         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
 976         [
 977                 if test "x$withval" != "xno" ; then
 978                         if test -d "$withval/lib"; then
 979                                 if test -n "${need_dash_r}"; then
 980                                         LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 981                                 else
 982                                         LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 983                                 fi
 984                         else
 985                                 if test -n "${need_dash_r}"; then
 986                                         LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 987                                 else
 988                                         LDFLAGS="-L${withval} ${LDFLAGS}"
 989                                 fi
 990                         fi
 991                         if test -d "$withval/include"; then
 992                                 CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 993                         else
 994                                 CPPFLAGS="-I${withval} ${CPPFLAGS}"
 995                         fi
 996                 fi
 997         ]
 998 )
 999 LIBS="$LIBS -lcrypto"
1000 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
1001         [
1002                 dnl Check default openssl install dir
1003                 if test -n "${need_dash_r}"; then
1004                         LDFLAGS="-L/usr/local/ssl/lib -R/usr/local/ssl/lib ${saved_LDFLAGS}"
1005                 else
1006                         LDFLAGS="-L/usr/local/ssl/lib ${saved_LDFLAGS}"
1007                 fi
1008                 CPPFLAGS="-I/usr/local/ssl/include ${saved_CPPFLAGS}"
1009                 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
1010                         [
1011                                 AC_MSG_ERROR([*** Can't find recent OpenSSL libcrypto (see config.log for details) ***])
1012                         ]
1013                 )
1014         ]
1015 )
1016
1017 # Determine OpenSSL header version
1018 AC_MSG_CHECKING([OpenSSL header version])
1019 AC_TRY_RUN(
1020         [
1021 #include <stdio.h>
1022 #include <string.h>
1023 #include <openssl/opensslv.h>
1024 #define DATA "conftest.sslincver"
1025 int main(void) {
1026         FILE *fd;
1027         int rc;
1028
1029         fd = fopen(DATA,"w");
1030         if(fd == NULL)
1031                 exit(1);
1032
1033         if ((rc = fprintf(fd ,"%x (%s)\n", OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT)) <0)
1034                 exit(1);
1035
1036         exit(0);
1037 }
1038         ],
1039         [
1040                 ssl_header_ver=`cat conftest.sslincver`
1041                 AC_MSG_RESULT($ssl_header_ver)
1042         ],
1043         [
1044                 AC_MSG_RESULT(not found)
1045                 AC_MSG_ERROR(OpenSSL version header not found.)
1046         ]
1047 )
1048
1049 # Determine OpenSSL library version
1050 AC_MSG_CHECKING([OpenSSL library version])
1051 AC_TRY_RUN(
1052         [
1053 #include <stdio.h>
1054 #include <string.h>
1055 #include <openssl/opensslv.h>
1056 #include <openssl/crypto.h>
1057 #define DATA "conftest.ssllibver"
1058 int main(void) {
1059         FILE *fd;
1060         int rc;
1061
1062         fd = fopen(DATA,"w");
1063         if(fd == NULL)
1064                 exit(1);
1065
1066         if ((rc = fprintf(fd ,"%x (%s)\n", SSLeay(), SSLeay_version(SSLEAY_VERSION))) <0)
1067                 exit(1);
1068
1069         exit(0);
1070 }
1071         ],
1072         [
1073                 ssl_library_ver=`cat conftest.ssllibver`
1074                 AC_MSG_RESULT($ssl_library_ver)
1075         ],
1076         [
1077                 AC_MSG_RESULT(not found)
1078                 AC_MSG_ERROR(OpenSSL library not found.)
1079         ]
1080 )
1081
1082 # Sanity check OpenSSL headers
1083 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
1084 AC_TRY_RUN(
1085         [
1086 #include <string.h>
1087 #include <openssl/opensslv.h>
1088 int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
1089         ],
1090         [
1091                 AC_MSG_RESULT(yes)
1092         ],
1093         [
1094                 AC_MSG_RESULT(no)
1095                 AC_MSG_ERROR([Your OpenSSL headers do not match your library.
1096 Check config.log for details.
1097 Also see contrib/findssl.sh for help identifying header/library mismatches.])
1098         ]
1099 )
1100
1101 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
1102 # version in OpenSSL. Skip this for PAM
1103 if test "x$check_for_libcrypt_later" = "x1"; then
1104         AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
1105 fi
1106
1107
1108 ### Configure cryptographic random number support
1109
1110 # Check wheter OpenSSL seeds itself
1111 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
1112 AC_TRY_RUN(
1113         [
1114 #include <string.h>
1115 #include <openssl/rand.h>
1116 int main(void) { exit(RAND_status() == 1 ? 0 : 1); }
1117         ],
1118         [
1119                 OPENSSL_SEEDS_ITSELF=yes
1120                 AC_MSG_RESULT(yes)
1121         ],
1122         [
1123                 AC_MSG_RESULT(no)
1124                 # Default to use of the rand helper if OpenSSL doesn't
1125                 # seed itself
1126                 USE_RAND_HELPER=yes
1127         ]
1128 )
1129
1130
1131 # Do we want to force the use of the rand helper?
1132 AC_ARG_WITH(rand-helper,
1133         [  --with-rand-helper      Use subprocess to gather strong randomness ],
1134         [
1135                 if test "x$withval" = "xno" ; then
1136                         # Force use of OpenSSL's internal RNG, even if
1137                         # the previous test showed it to be unseeded.
1138                         if test -z "$OPENSSL_SEEDS_ITSELF" ; then
1139                                 AC_MSG_WARN([*** Forcing use of OpenSSL's non-self-seeding PRNG])
1140                                 OPENSSL_SEEDS_ITSELF=yes
1141                                 USE_RAND_HELPER=""
1142                         fi
1143                 else
1144                         USE_RAND_HELPER=yes
1145                 fi
1146         ],
1147 )
1148
1149 # Which randomness source do we use?
1150 if test ! -z "$OPENSSL_SEEDS_ITSELF" -a -z "$USE_RAND_HELPER" ; then
1151         # OpenSSL only
1152         AC_DEFINE(OPENSSL_PRNG_ONLY)
1153         RAND_MSG="OpenSSL internal ONLY"
1154         INSTALL_SSH_RAND_HELPER=""
1155 elif test ! -z "$USE_RAND_HELPER" ; then
1156         # install rand helper
1157         RAND_MSG="ssh-rand-helper"
1158         INSTALL_SSH_RAND_HELPER="yes"
1159 fi
1160 AC_SUBST(INSTALL_SSH_RAND_HELPER)
1161
1162 ### Configuration of ssh-rand-helper
1163
1164 # PRNGD TCP socket
1165 AC_ARG_WITH(prngd-port,
1166         [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
1167         [
1168                 case "$withval" in
1169                 no)
1170                         withval=""
1171                         ;;
1172                 [[0-9]]*)
1173                         ;;
1174                 *)
1175                         AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
1176                         ;;
1177                 esac
1178                 if test ! -z "$withval" ; then
1179                         PRNGD_PORT="$withval"
1180                         AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT)
1181                 fi
1182         ]
1183 )
1184
1185 # PRNGD Unix domain socket
1186 AC_ARG_WITH(prngd-socket,
1187         [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
1188         [
1189                 case "$withval" in
1190                 yes)
1191                         withval="/var/run/egd-pool"
1192                         ;;
1193                 no)
1194                         withval=""
1195                         ;;
1196                 /*)
1197                         ;;
1198                 *)
1199                         AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
1200                         ;;
1201                 esac
1202
1203                 if test ! -z "$withval" ; then
1204                         if test ! -z "$PRNGD_PORT" ; then
1205                                 AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
1206                         fi
1207                         if test ! -r "$withval" ; then
1208                                 AC_MSG_WARN(Entropy socket is not readable)
1209                         fi
1210                         PRNGD_SOCKET="$withval"
1211                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1212                 fi
1213         ],
1214         [
1215                 # Check for existing socket only if we don't have a random device already
1216                 if test "$USE_RAND_HELPER" = yes ; then
1217                         AC_MSG_CHECKING(for PRNGD/EGD socket)
1218                         # Insert other locations here
1219                         for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
1220                                 if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
1221                                         PRNGD_SOCKET="$sock"
1222                                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1223                                         break;
1224                                 fi
1225                         done
1226                         if test ! -z "$PRNGD_SOCKET" ; then
1227                                 AC_MSG_RESULT($PRNGD_SOCKET)
1228                         else
1229                                 AC_MSG_RESULT(not found)
1230                         fi
1231                 fi
1232         ]
1233 )
1234
1235 # Change default command timeout for hashing entropy source
1236 entropy_timeout=200
1237 AC_ARG_WITH(entropy-timeout,
1238         [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
1239         [
1240                 if test "x$withval" != "xno" ; then
1241                         entropy_timeout=$withval
1242                 fi
1243         ]
1244 )
1245 AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout)
1246
1247 SSH_PRIVSEP_USER=sshd
1248 AC_ARG_WITH(privsep-user,
1249         [  --with-privsep-user=user Specify non-privileged user for privilege separation],
1250         [
1251                 if test -n "$withval"; then
1252                         SSH_PRIVSEP_USER=$withval
1253                 fi
1254         ]
1255 )
1256 AC_DEFINE_UNQUOTED(SSH_PRIVSEP_USER, "$SSH_PRIVSEP_USER")
1257 AC_SUBST(SSH_PRIVSEP_USER)
1258
1259 # We do this little dance with the search path to insure
1260 # that programs that we select for use by installed programs
1261 # (which may be run by the super-user) come from trusted
1262 # locations before they come from the user's private area.
1263 # This should help avoid accidentally configuring some
1264 # random version of a program in someone's personal bin.
1265
1266 OPATH=$PATH
1267 PATH=/bin:/usr/bin
1268 test -h /bin 2> /dev/null && PATH=/usr/bin
1269 test -d /sbin && PATH=$PATH:/sbin
1270 test -d /usr/sbin && PATH=$PATH:/usr/sbin
1271 PATH=$PATH:/etc:$OPATH
1272
1273 # These programs are used by the command hashing source to gather entropy
1274 OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
1275 OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
1276 OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
1277 OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
1278 OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
1279 OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
1280 OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
1281 OSSH_PATH_ENTROPY_PROG(PROG_W, w)
1282 OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
1283 OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
1284 OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
1285 OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
1286 OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
1287 OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
1288 OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
1289 OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
1290 # restore PATH
1291 PATH=$OPATH
1292
1293 # Where does ssh-rand-helper get its randomness from?
1294 INSTALL_SSH_PRNG_CMDS=""
1295 if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
1296         if test ! -z "$PRNGD_PORT" ; then
1297                 RAND_HELPER_MSG="TCP localhost:$PRNGD_PORT"
1298         elif test ! -z "$PRNGD_SOCKET" ; then
1299                 RAND_HELPER_MSG="Unix domain socket \"$PRNGD_SOCKET\""
1300         else
1301                 RAND_HELPER_MSG="Command hashing (timeout $entropy_timeout)"
1302                 RAND_HELPER_CMDHASH=yes
1303                 INSTALL_SSH_PRNG_CMDS="yes"
1304         fi
1305 fi
1306 AC_SUBST(INSTALL_SSH_PRNG_CMDS)
1307
1308
1309 # Cheap hack to ensure NEWS-OS libraries are arranged right.
1310 if test ! -z "$SONY" ; then
1311   LIBS="$LIBS -liberty";
1312 fi
1313
1314 # Checks for data types
1315 AC_CHECK_SIZEOF(char, 1)
1316 AC_CHECK_SIZEOF(short int, 2)
1317 AC_CHECK_SIZEOF(int, 4)
1318 AC_CHECK_SIZEOF(long int, 4)
1319 AC_CHECK_SIZEOF(long long int, 8)
1320
1321 # Sanity check long long for some platforms (AIX)
1322 if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
1323         ac_cv_sizeof_long_long_int=0
1324 fi
1325
1326 # More checks for data types
1327 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
1328         AC_TRY_COMPILE(
1329                 [ #include <sys/types.h> ],
1330                 [ u_int a; a = 1;],
1331                 [ ac_cv_have_u_int="yes" ],
1332                 [ ac_cv_have_u_int="no" ]
1333         )
1334 ])
1335 if test "x$ac_cv_have_u_int" = "xyes" ; then
1336         AC_DEFINE(HAVE_U_INT)
1337         have_u_int=1
1338 fi
1339
1340 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
1341         AC_TRY_COMPILE(
1342                 [ #include <sys/types.h> ],
1343                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1344                 [ ac_cv_have_intxx_t="yes" ],
1345                 [ ac_cv_have_intxx_t="no" ]
1346         )
1347 ])
1348 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
1349         AC_DEFINE(HAVE_INTXX_T)
1350         have_intxx_t=1
1351 fi
1352
1353 if (test -z "$have_intxx_t" && \
1354            test "x$ac_cv_header_stdint_h" = "xyes")
1355 then
1356     AC_MSG_CHECKING([for intXX_t types in stdint.h])
1357         AC_TRY_COMPILE(
1358                 [ #include <stdint.h> ],
1359                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1360                 [
1361                         AC_DEFINE(HAVE_INTXX_T)
1362                         AC_MSG_RESULT(yes)
1363                 ],
1364                 [ AC_MSG_RESULT(no) ]
1365         )
1366 fi
1367
1368 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
1369         AC_TRY_COMPILE(
1370                 [
1371 #include <sys/types.h>
1372 #ifdef HAVE_STDINT_H
1373 # include <stdint.h>
1374 #endif
1375 #include <sys/socket.h>
1376 #ifdef HAVE_SYS_BITYPES_H
1377 # include <sys/bitypes.h>
1378 #endif
1379                 ],
1380                 [ int64_t a; a = 1;],
1381                 [ ac_cv_have_int64_t="yes" ],
1382                 [ ac_cv_have_int64_t="no" ]
1383         )
1384 ])
1385 if test "x$ac_cv_have_int64_t" = "xyes" ; then
1386         AC_DEFINE(HAVE_INT64_T)
1387 fi
1388
1389 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
1390         AC_TRY_COMPILE(
1391                 [ #include <sys/types.h> ],
1392                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1393                 [ ac_cv_have_u_intxx_t="yes" ],
1394                 [ ac_cv_have_u_intxx_t="no" ]
1395         )
1396 ])
1397 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
1398         AC_DEFINE(HAVE_U_INTXX_T)
1399         have_u_intxx_t=1
1400 fi
1401
1402 if test -z "$have_u_intxx_t" ; then
1403     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
1404         AC_TRY_COMPILE(
1405                 [ #include <sys/socket.h> ],
1406                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1407                 [
1408                         AC_DEFINE(HAVE_U_INTXX_T)
1409                         AC_MSG_RESULT(yes)
1410                 ],
1411                 [ AC_MSG_RESULT(no) ]
1412         )
1413 fi
1414
1415 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
1416         AC_TRY_COMPILE(
1417                 [ #include <sys/types.h> ],
1418                 [ u_int64_t a; a = 1;],
1419                 [ ac_cv_have_u_int64_t="yes" ],
1420                 [ ac_cv_have_u_int64_t="no" ]
1421         )
1422 ])
1423 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
1424         AC_DEFINE(HAVE_U_INT64_T)
1425         have_u_int64_t=1
1426 fi
1427
1428 if test -z "$have_u_int64_t" ; then
1429     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
1430         AC_TRY_COMPILE(
1431                 [ #include <sys/bitypes.h> ],
1432                 [ u_int64_t a; a = 1],
1433                 [
1434                         AC_DEFINE(HAVE_U_INT64_T)
1435                         AC_MSG_RESULT(yes)
1436                 ],
1437                 [ AC_MSG_RESULT(no) ]
1438         )
1439 fi
1440
1441 if test -z "$have_u_intxx_t" ; then
1442         AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
1443                 AC_TRY_COMPILE(
1444                         [
1445 #include <sys/types.h>
1446                         ],
1447                         [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
1448                         [ ac_cv_have_uintxx_t="yes" ],
1449                         [ ac_cv_have_uintxx_t="no" ]
1450                 )
1451         ])
1452         if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
1453                 AC_DEFINE(HAVE_UINTXX_T)
1454         fi
1455 fi
1456
1457 if test -z "$have_uintxx_t" ; then
1458     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
1459         AC_TRY_COMPILE(
1460                 [ #include <stdint.h> ],
1461                 [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
1462                 [
1463                         AC_DEFINE(HAVE_UINTXX_T)
1464                         AC_MSG_RESULT(yes)
1465                 ],
1466                 [ AC_MSG_RESULT(no) ]
1467         )
1468 fi
1469
1470 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
1471            test "x$ac_cv_header_sys_bitypes_h" = "xyes")
1472 then
1473         AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
1474         AC_TRY_COMPILE(
1475                 [
1476 #include <sys/bitypes.h>
1477                 ],
1478                 [
1479                         int8_t a; int16_t b; int32_t c;
1480                         u_int8_t e; u_int16_t f; u_int32_t g;
1481                         a = b = c = e = f = g = 1;
1482                 ],
1483                 [
1484                         AC_DEFINE(HAVE_U_INTXX_T)
1485                         AC_DEFINE(HAVE_INTXX_T)
1486                         AC_MSG_RESULT(yes)
1487                 ],
1488                 [AC_MSG_RESULT(no)]
1489         )
1490 fi
1491
1492
1493 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
1494         AC_TRY_COMPILE(
1495                 [
1496 #include <sys/types.h>
1497                 ],
1498                 [ u_char foo; foo = 125; ],
1499                 [ ac_cv_have_u_char="yes" ],
1500                 [ ac_cv_have_u_char="no" ]
1501         )
1502 ])
1503 if test "x$ac_cv_have_u_char" = "xyes" ; then
1504         AC_DEFINE(HAVE_U_CHAR)
1505 fi
1506
1507 TYPE_SOCKLEN_T
1508
1509 AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
1510
1511 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
1512         AC_TRY_COMPILE(
1513                 [
1514 #include <sys/types.h>
1515                 ],
1516                 [ size_t foo; foo = 1235; ],
1517                 [ ac_cv_have_size_t="yes" ],
1518                 [ ac_cv_have_size_t="no" ]
1519         )
1520 ])
1521 if test "x$ac_cv_have_size_t" = "xyes" ; then
1522         AC_DEFINE(HAVE_SIZE_T)
1523 fi
1524
1525 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
1526         AC_TRY_COMPILE(
1527                 [
1528 #include <sys/types.h>
1529                 ],
1530                 [ ssize_t foo; foo = 1235; ],
1531                 [ ac_cv_have_ssize_t="yes" ],
1532                 [ ac_cv_have_ssize_t="no" ]
1533         )
1534 ])
1535 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
1536         AC_DEFINE(HAVE_SSIZE_T)
1537 fi
1538
1539 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
1540         AC_TRY_COMPILE(
1541                 [
1542 #include <time.h>
1543                 ],
1544                 [ clock_t foo; foo = 1235; ],
1545                 [ ac_cv_have_clock_t="yes" ],
1546                 [ ac_cv_have_clock_t="no" ]
1547         )
1548 ])
1549 if test "x$ac_cv_have_clock_t" = "xyes" ; then
1550         AC_DEFINE(HAVE_CLOCK_T)
1551 fi
1552
1553 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
1554         AC_TRY_COMPILE(
1555                 [
1556 #include <sys/types.h>
1557 #include <sys/socket.h>
1558                 ],
1559                 [ sa_family_t foo; foo = 1235; ],
1560                 [ ac_cv_have_sa_family_t="yes" ],
1561                 [ AC_TRY_COMPILE(
1562                   [
1563 #include <sys/types.h>
1564 #include <sys/socket.h>
1565 #include <netinet/in.h>
1566                 ],
1567                 [ sa_family_t foo; foo = 1235; ],
1568                 [ ac_cv_have_sa_family_t="yes" ],
1569
1570                 [ ac_cv_have_sa_family_t="no" ]
1571         )]
1572         )
1573 ])
1574 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
1575         AC_DEFINE(HAVE_SA_FAMILY_T)
1576 fi
1577
1578 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
1579         AC_TRY_COMPILE(
1580                 [
1581 #include <sys/types.h>
1582                 ],
1583                 [ pid_t foo; foo = 1235; ],
1584                 [ ac_cv_have_pid_t="yes" ],
1585                 [ ac_cv_have_pid_t="no" ]
1586         )
1587 ])
1588 if test "x$ac_cv_have_pid_t" = "xyes" ; then
1589         AC_DEFINE(HAVE_PID_T)
1590 fi
1591
1592 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
1593         AC_TRY_COMPILE(
1594                 [
1595 #include <sys/types.h>
1596                 ],
1597                 [ mode_t foo; foo = 1235; ],
1598                 [ ac_cv_have_mode_t="yes" ],
1599                 [ ac_cv_have_mode_t="no" ]
1600         )
1601 ])
1602 if test "x$ac_cv_have_mode_t" = "xyes" ; then
1603         AC_DEFINE(HAVE_MODE_T)
1604 fi
1605
1606
1607 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
1608         AC_TRY_COMPILE(
1609                 [
1610 #include <sys/types.h>
1611 #include <sys/socket.h>
1612                 ],
1613                 [ struct sockaddr_storage s; ],
1614                 [ ac_cv_have_struct_sockaddr_storage="yes" ],
1615                 [ ac_cv_have_struct_sockaddr_storage="no" ]
1616         )
1617 ])
1618 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
1619         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
1620 fi
1621
1622 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
1623         AC_TRY_COMPILE(
1624                 [
1625 #include <sys/types.h>
1626 #include <netinet/in.h>
1627                 ],
1628                 [ struct sockaddr_in6 s; s.sin6_family = 0; ],
1629                 [ ac_cv_have_struct_sockaddr_in6="yes" ],
1630                 [ ac_cv_have_struct_sockaddr_in6="no" ]
1631         )
1632 ])
1633 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
1634         AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
1635 fi
1636
1637 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
1638         AC_TRY_COMPILE(
1639                 [
1640 #include <sys/types.h>
1641 #include <netinet/in.h>
1642                 ],
1643                 [ struct in6_addr s; s.s6_addr[0] = 0; ],
1644                 [ ac_cv_have_struct_in6_addr="yes" ],
1645                 [ ac_cv_have_struct_in6_addr="no" ]
1646         )
1647 ])
1648 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
1649         AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
1650 fi
1651
1652 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
1653         AC_TRY_COMPILE(
1654                 [
1655 #include <sys/types.h>
1656 #include <sys/socket.h>
1657 #include <netdb.h>
1658                 ],
1659                 [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
1660                 [ ac_cv_have_struct_addrinfo="yes" ],
1661                 [ ac_cv_have_struct_addrinfo="no" ]
1662         )
1663 ])
1664 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
1665         AC_DEFINE(HAVE_STRUCT_ADDRINFO)
1666 fi
1667
1668 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
1669         AC_TRY_COMPILE(
1670                 [ #include <sys/time.h> ],
1671                 [ struct timeval tv; tv.tv_sec = 1;],
1672                 [ ac_cv_have_struct_timeval="yes" ],
1673                 [ ac_cv_have_struct_timeval="no" ]
1674         )
1675 ])
1676 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
1677         AC_DEFINE(HAVE_STRUCT_TIMEVAL)
1678         have_struct_timeval=1
1679 fi
1680
1681 AC_CHECK_TYPES(struct timespec)
1682
1683 # We need int64_t or else certian parts of the compile will fail.
1684 if test "x$ac_cv_have_int64_t" = "xno" -a \
1685         "x$ac_cv_sizeof_long_int" != "x8" -a \
1686         "x$ac_cv_sizeof_long_long_int" = "x0" ; then
1687         echo "OpenSSH requires int64_t support.  Contact your vendor or install"
1688         echo "an alternative compiler (I.E., GCC) before continuing."
1689         echo ""
1690         exit 1;
1691 else
1692 dnl test snprintf (broken on SCO w/gcc)
1693         AC_TRY_RUN(
1694                 [
1695 #include <stdio.h>
1696 #include <string.h>
1697 #ifdef HAVE_SNPRINTF
1698 main()
1699 {
1700         char buf[50];
1701         char expected_out[50];
1702         int mazsize = 50 ;
1703 #if (SIZEOF_LONG_INT == 8)
1704         long int num = 0x7fffffffffffffff;
1705 #else
1706         long long num = 0x7fffffffffffffffll;
1707 #endif
1708         strcpy(expected_out, "9223372036854775807");
1709         snprintf(buf, mazsize, "%lld", num);
1710         if(strcmp(buf, expected_out) != 0)
1711                 exit(1);
1712         exit(0);
1713 }
1714 #else
1715 main() { exit(0); }
1716 #endif
1717                 ], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ]
1718         )
1719 fi
1720
1721 dnl Checks for structure members
1722 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
1723 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
1724 OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
1725 OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
1726 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
1727 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
1728 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
1729 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
1730 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
1731 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
1732 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
1733 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
1734 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
1735 OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
1736 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
1737 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
1738 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
1739
1740 AC_CHECK_MEMBERS([struct stat.st_blksize])
1741
1742 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
1743                 ac_cv_have_ss_family_in_struct_ss, [
1744         AC_TRY_COMPILE(
1745                 [
1746 #include <sys/types.h>
1747 #include <sys/socket.h>
1748                 ],
1749                 [ struct sockaddr_storage s; s.ss_family = 1; ],
1750                 [ ac_cv_have_ss_family_in_struct_ss="yes" ],
1751                 [ ac_cv_have_ss_family_in_struct_ss="no" ],
1752         )
1753 ])
1754 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
1755         AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
1756 fi
1757
1758 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
1759                 ac_cv_have___ss_family_in_struct_ss, [
1760         AC_TRY_COMPILE(
1761                 [
1762 #include <sys/types.h>
1763 #include <sys/socket.h>
1764                 ],
1765                 [ struct sockaddr_storage s; s.__ss_family = 1; ],
1766                 [ ac_cv_have___ss_family_in_struct_ss="yes" ],
1767                 [ ac_cv_have___ss_family_in_struct_ss="no" ]
1768         )
1769 ])
1770 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
1771         AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
1772 fi
1773
1774 AC_CACHE_CHECK([for pw_class field in struct passwd],
1775                 ac_cv_have_pw_class_in_struct_passwd, [
1776         AC_TRY_COMPILE(
1777                 [
1778 #include <pwd.h>
1779                 ],
1780                 [ struct passwd p; p.pw_class = 0; ],
1781                 [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
1782                 [ ac_cv_have_pw_class_in_struct_passwd="no" ]
1783         )
1784 ])
1785 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
1786         AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD)
1787 fi
1788
1789 AC_CACHE_CHECK([for pw_expire field in struct passwd],
1790                 ac_cv_have_pw_expire_in_struct_passwd, [
1791         AC_TRY_COMPILE(
1792                 [
1793 #include <pwd.h>
1794                 ],
1795                 [ struct passwd p; p.pw_expire = 0; ],
1796                 [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
1797                 [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
1798         )
1799 ])
1800 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
1801         AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD)
1802 fi
1803
1804 AC_CACHE_CHECK([for pw_change field in struct passwd],
1805                 ac_cv_have_pw_change_in_struct_passwd, [
1806         AC_TRY_COMPILE(
1807                 [
1808 #include <pwd.h>
1809                 ],
1810                 [ struct passwd p; p.pw_change = 0; ],
1811                 [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
1812                 [ ac_cv_have_pw_change_in_struct_passwd="no" ]
1813         )
1814 ])
1815 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
1816         AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD)
1817 fi
1818
1819 dnl make sure we're using the real structure members and not defines
1820 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
1821                 ac_cv_have_accrights_in_msghdr, [
1822         AC_TRY_RUN(
1823                 [
1824 #include <sys/types.h>
1825 #include <sys/socket.h>
1826 #include <sys/uio.h>
1827 int main() {
1828 #ifdef msg_accrights
1829 exit(1);
1830 #endif
1831 struct msghdr m;
1832 m.msg_accrights = 0;
1833 exit(0);
1834 }
1835                 ],
1836                 [ ac_cv_have_accrights_in_msghdr="yes" ],
1837                 [ ac_cv_have_accrights_in_msghdr="no" ]
1838         )
1839 ])
1840 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
1841         AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR)
1842 fi
1843
1844 AC_CACHE_CHECK([for msg_control field in struct msghdr],
1845                 ac_cv_have_control_in_msghdr, [
1846         AC_TRY_RUN(
1847                 [
1848 #include <sys/types.h>
1849 #include <sys/socket.h>
1850 #include <sys/uio.h>
1851 int main() {
1852 #ifdef msg_control
1853 exit(1);
1854 #endif
1855 struct msghdr m;
1856 m.msg_control = 0;
1857 exit(0);
1858 }
1859                 ],
1860                 [ ac_cv_have_control_in_msghdr="yes" ],
1861                 [ ac_cv_have_control_in_msghdr="no" ]
1862         )
1863 ])
1864 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
1865         AC_DEFINE(HAVE_CONTROL_IN_MSGHDR)
1866 fi
1867
1868 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
1869         AC_TRY_LINK([],
1870                 [ extern char *__progname; printf("%s", __progname); ],
1871                 [ ac_cv_libc_defines___progname="yes" ],
1872                 [ ac_cv_libc_defines___progname="no" ]
1873         )
1874 ])
1875 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
1876         AC_DEFINE(HAVE___PROGNAME)
1877 fi
1878
1879 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
1880         AC_TRY_LINK([
1881 #include <stdio.h>
1882 ],
1883                 [ printf("%s", __FUNCTION__); ],
1884                 [ ac_cv_cc_implements___FUNCTION__="yes" ],
1885                 [ ac_cv_cc_implements___FUNCTION__="no" ]
1886         )
1887 ])
1888 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
1889         AC_DEFINE(HAVE___FUNCTION__)
1890 fi
1891
1892 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
1893         AC_TRY_LINK([
1894 #include <stdio.h>
1895 ],
1896                 [ printf("%s", __func__); ],
1897                 [ ac_cv_cc_implements___func__="yes" ],
1898                 [ ac_cv_cc_implements___func__="no" ]
1899         )
1900 ])
1901 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
1902         AC_DEFINE(HAVE___func__)
1903 fi
1904
1905 AC_CACHE_CHECK([whether getopt has optreset support],
1906                 ac_cv_have_getopt_optreset, [
1907         AC_TRY_LINK(
1908                 [
1909 #include <getopt.h>
1910                 ],
1911                 [ extern int optreset; optreset = 0; ],
1912                 [ ac_cv_have_getopt_optreset="yes" ],
1913                 [ ac_cv_have_getopt_optreset="no" ]
1914         )
1915 ])
1916 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
1917         AC_DEFINE(HAVE_GETOPT_OPTRESET)
1918 fi
1919
1920 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
1921         AC_TRY_LINK([],
1922                 [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
1923                 [ ac_cv_libc_defines_sys_errlist="yes" ],
1924                 [ ac_cv_libc_defines_sys_errlist="no" ]
1925         )
1926 ])
1927 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
1928         AC_DEFINE(HAVE_SYS_ERRLIST)
1929 fi
1930
1931
1932 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
1933         AC_TRY_LINK([],
1934                 [ extern int sys_nerr; printf("%i", sys_nerr);],
1935                 [ ac_cv_libc_defines_sys_nerr="yes" ],
1936                 [ ac_cv_libc_defines_sys_nerr="no" ]
1937         )
1938 ])
1939 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
1940         AC_DEFINE(HAVE_SYS_NERR)
1941 fi
1942
1943 SCARD_MSG="no"
1944 # Check whether user wants sectok support
1945 AC_ARG_WITH(sectok,
1946         [  --with-sectok           Enable smartcard support using libsectok],
1947         [
1948                 if test "x$withval" != "xno" ; then
1949                         if test "x$withval" != "xyes" ; then
1950                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1951                                 LDFLAGS="$LDFLAGS -L${withval}"
1952                                 if test ! -z "$need_dash_r" ; then
1953                                         LDFLAGS="$LDFLAGS -R${withval}"
1954                                 fi
1955                                 if test ! -z "$blibpath" ; then
1956                                         blibpath="$blibpath:${withval}"
1957                                 fi
1958                         fi
1959                         AC_CHECK_HEADERS(sectok.h)
1960                         if test "$ac_cv_header_sectok_h" != yes; then
1961                                 AC_MSG_ERROR(Can't find sectok.h)
1962                         fi
1963                         AC_CHECK_LIB(sectok, sectok_open)
1964                         if test "$ac_cv_lib_sectok_sectok_open" != yes; then
1965                                 AC_MSG_ERROR(Can't find libsectok)
1966                         fi
1967                         AC_DEFINE(SMARTCARD)
1968                         AC_DEFINE(USE_SECTOK)
1969                         SCARD_MSG="yes, using sectok"
1970                 fi
1971         ]
1972 )
1973
1974 # Check whether user wants OpenSC support
1975 AC_ARG_WITH(opensc,
1976         AC_HELP_STRING([--with-opensc=PFX],
1977                        [Enable smartcard support using OpenSC]),
1978         opensc_config_prefix="$withval", opensc_config_prefix="")
1979 if test x$opensc_config_prefix != x ; then
1980   OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
1981   AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
1982   if test "$OPENSC_CONFIG" != "no"; then
1983     LIBOPENSC_CFLAGS=`$OPENSC_CONFIG --cflags`
1984     LIBOPENSC_LIBS=`$OPENSC_CONFIG --libs`
1985     CPPFLAGS="$CPPFLAGS $LIBOPENSC_CFLAGS"
1986     LDFLAGS="$LDFLAGS $LIBOPENSC_LIBS"
1987     AC_DEFINE(SMARTCARD)
1988     AC_DEFINE(USE_OPENSC)
1989     SCARD_MSG="yes, using OpenSC"
1990   fi
1991 fi
1992
1993 # Check libraries needed by DNS fingerprint support
1994 AC_SEARCH_LIBS(getrrsetbyname, resolv,
1995         [AC_DEFINE(HAVE_GETRRSETBYNAME)],
1996         [
1997                 # Needed by our getrrsetbyname()
1998                 AC_SEARCH_LIBS(res_query, resolv)
1999                 AC_SEARCH_LIBS(dn_expand, resolv)
2000                 AC_CHECK_FUNCS(_getshort _getlong)
2001                 AC_CHECK_MEMBER(HEADER.ad,
2002                         [AC_DEFINE(HAVE_HEADER_AD)],,
2003                         [#include <arpa/nameser.h>])
2004         ])
2005
2006 # Check whether user wants Kerberos 5 support
2007 KRB5_MSG="no"
2008 AC_ARG_WITH(kerberos5,
2009         [  --with-kerberos5=PATH   Enable Kerberos 5 support],
2010         [
2011                 if test "x$withval" != "xno" ; then
2012                         if test "x$withval" = "xyes" ; then
2013                                 KRB5ROOT="/usr/local"
2014                         else
2015                                 KRB5ROOT=${withval}
2016                         fi
2017                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
2018                         LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
2019                         AC_DEFINE(KRB5)
2020                         KRB5_MSG="yes"
2021                         AC_MSG_CHECKING(whether we are using Heimdal)
2022                         AC_TRY_COMPILE([ #include <krb5.h> ],
2023                                        [ char *tmp = heimdal_version; ],
2024                                        [ AC_MSG_RESULT(yes)
2025                                          AC_DEFINE(HEIMDAL)
2026                                          K5LIBS="-lkrb5 -ldes -lcom_err -lasn1 -lroken"
2027                                        ],
2028                                        [ AC_MSG_RESULT(no)
2029                                          K5LIBS="-lkrb5 -lk5crypto -lcom_err"
2030                                        ]
2031                         )
2032                         if test ! -z "$need_dash_r" ; then
2033                                 LDFLAGS="$LDFLAGS -R${KRB5ROOT}/lib"
2034                         fi
2035                         if test ! -z "$blibpath" ; then
2036                                 blibpath="$blibpath:${KRB5ROOT}/lib"
2037                         fi
2038                         AC_SEARCH_LIBS(dn_expand, resolv)
2039
2040                         AC_CHECK_LIB(gssapi,gss_init_sec_context,
2041                                 [ AC_DEFINE(GSSAPI)
2042                                   K5LIBS="-lgssapi $K5LIBS" ],
2043                                 [ AC_CHECK_LIB(gssapi_krb5,gss_init_sec_context,
2044                                         [ AC_DEFINE(GSSAPI)
2045                                           K5LIBS="-lgssapi_krb5 $K5LIBS" ],
2046                                         AC_MSG_WARN([Cannot find any suitable gss-api library - build may fail]),
2047                                         $K5LIBS)
2048                                 ],
2049                                 $K5LIBS)
2050
2051                         AC_CHECK_HEADER(gssapi.h, ,
2052                                 [ unset ac_cv_header_gssapi_h
2053                                   CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
2054                                   AC_CHECK_HEADERS(gssapi.h, ,
2055                                         AC_MSG_WARN([Cannot find any suitable gss-api header - build may fail])
2056                                   )
2057                                 ]
2058                         )
2059
2060                         oldCPP="$CPPFLAGS"
2061                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
2062                         AC_CHECK_HEADER(gssapi_krb5.h, ,
2063                                         [ CPPFLAGS="$oldCPP" ])
2064
2065                         KRB5=yes
2066                 fi
2067         ]
2068 )
2069 LIBS="$LIBS $K5LIBS"
2070
2071 # Looking for programs, paths and files
2072
2073 PRIVSEP_PATH=/var/empty
2074 AC_ARG_WITH(privsep-path,
2075         [  --with-privsep-path=xxx Path for privilege separation chroot (default=/var/empty)],
2076         [
2077                 if test "x$withval" != "$no" ; then
2078                         PRIVSEP_PATH=$withval
2079                 fi
2080         ]
2081 )
2082 AC_SUBST(PRIVSEP_PATH)
2083
2084 AC_ARG_WITH(xauth,
2085         [  --with-xauth=PATH       Specify path to xauth program ],
2086         [
2087                 if test "x$withval" != "xno" ; then
2088                         xauth_path=$withval
2089                 fi
2090         ],
2091         [
2092                 TestPath="$PATH"
2093                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X/bin"
2094                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/bin/X11"
2095                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X11R6/bin"
2096                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/openwin/bin"
2097                 AC_PATH_PROG(xauth_path, xauth, , $TestPath)
2098                 if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
2099                         xauth_path="/usr/openwin/bin/xauth"
2100                 fi
2101         ]
2102 )
2103
2104 STRIP_OPT=-s
2105 AC_ARG_ENABLE(strip,
2106         [  --disable-strip         Disable calling strip(1) on install],
2107         [
2108                 if test "x$enableval" = "xno" ; then
2109                         STRIP_OPT=
2110                 fi
2111         ]
2112 )
2113 AC_SUBST(STRIP_OPT)
2114
2115 if test -z "$xauth_path" ; then
2116         XAUTH_PATH="undefined"
2117         AC_SUBST(XAUTH_PATH)
2118 else
2119         AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
2120         XAUTH_PATH=$xauth_path
2121         AC_SUBST(XAUTH_PATH)
2122 fi
2123
2124 # Check for mail directory (last resort if we cannot get it from headers)
2125 if test ! -z "$MAIL" ; then
2126         maildir=`dirname $MAIL`
2127         AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
2128 fi
2129
2130 if test -z "$no_dev_ptmx" ; then
2131         if test "x$disable_ptmx_check" != "xyes" ; then
2132                 AC_CHECK_FILE("/dev/ptmx",
2133                         [
2134                                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
2135                                 have_dev_ptmx=1
2136                         ]
2137                 )
2138         fi
2139 fi
2140 AC_CHECK_FILE("/dev/ptc",
2141         [
2142                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
2143                 have_dev_ptc=1
2144         ]
2145 )
2146
2147 # Options from here on. Some of these are preset by platform above
2148 AC_ARG_WITH(mantype,
2149         [  --with-mantype=man|cat|doc  Set man page type],
2150         [
2151                 case "$withval" in
2152                 man|cat|doc)
2153                         MANTYPE=$withval
2154                         ;;
2155                 *)
2156                         AC_MSG_ERROR(invalid man type: $withval)
2157                         ;;
2158                 esac
2159         ]
2160 )
2161 if test -z "$MANTYPE"; then
2162         TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
2163         AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
2164         if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
2165                 MANTYPE=doc
2166         elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
2167                 MANTYPE=man
2168         else
2169                 MANTYPE=cat
2170         fi
2171 fi
2172 AC_SUBST(MANTYPE)
2173 if test "$MANTYPE" = "doc"; then
2174         mansubdir=man;
2175 else
2176         mansubdir=$MANTYPE;
2177 fi
2178 AC_SUBST(mansubdir)
2179
2180 # Check whether to enable MD5 passwords
2181 MD5_MSG="no"
2182 AC_ARG_WITH(md5-passwords,
2183         [  --with-md5-passwords    Enable use of MD5 passwords],
2184         [
2185                 if test "x$withval" != "xno" ; then
2186                         AC_DEFINE(HAVE_MD5_PASSWORDS)
2187                         MD5_MSG="yes"
2188                 fi
2189         ]
2190 )
2191
2192 # Whether to disable shadow password support
2193 AC_ARG_WITH(shadow,
2194         [  --without-shadow        Disable shadow password support],
2195         [
2196                 if test "x$withval" = "xno" ; then
2197                         AC_DEFINE(DISABLE_SHADOW)
2198                         disable_shadow=yes
2199                 fi
2200         ]
2201 )
2202
2203 if test -z "$disable_shadow" ; then
2204         AC_MSG_CHECKING([if the systems has expire shadow information])
2205         AC_TRY_COMPILE(
2206         [
2207 #include <sys/types.h>
2208 #include <shadow.h>
2209         struct spwd sp;
2210         ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
2211         [ sp_expire_available=yes ], []
2212         )
2213
2214         if test "x$sp_expire_available" = "xyes" ; then
2215                 AC_MSG_RESULT(yes)
2216                 AC_DEFINE(HAS_SHADOW_EXPIRE)
2217         else
2218                 AC_MSG_RESULT(no)
2219         fi
2220 fi
2221
2222 # Use ip address instead of hostname in $DISPLAY
2223 if test ! -z "$IPADDR_IN_DISPLAY" ; then
2224         DISPLAY_HACK_MSG="yes"
2225         AC_DEFINE(IPADDR_IN_DISPLAY)
2226 else
2227         DISPLAY_HACK_MSG="no"
2228         AC_ARG_WITH(ipaddr-display,
2229                 [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
2230                 [
2231                         if test "x$withval" != "xno" ; then
2232                                 AC_DEFINE(IPADDR_IN_DISPLAY)
2233                                 DISPLAY_HACK_MSG="yes"
2234                         fi
2235                 ]
2236         )
2237 fi
2238
2239 # check for /etc/default/login and use it if present.
2240 AC_ARG_ENABLE(etc-default-login,
2241         [  --disable-etc-default-login       Disable using PATH from /etc/default/login [no]],,
2242 [
2243 AC_CHECK_FILE("/etc/default/login", [ external_path_file=/etc/default/login ])
2244
2245 if test "x$external_path_file" = "x/etc/default/login"; then
2246         AC_DEFINE(HAVE_ETC_DEFAULT_LOGIN)
2247 fi
2248 ])
2249
2250 dnl BSD systems use /etc/login.conf so --with-default-path= has no effect
2251 if test $ac_cv_func_login_getcapbool = "yes" -a \
2252         $ac_cv_header_login_cap_h = "yes" ; then
2253         external_path_file=/etc/login.conf
2254 fi
2255
2256 # Whether to mess with the default path
2257 SERVER_PATH_MSG="(default)"
2258 AC_ARG_WITH(default-path,
2259         [  --with-default-path=    Specify default \$PATH environment for server],
2260         [
2261                 if test "x$external_path_file" = "x/etc/login.conf" ; then
2262                         AC_MSG_WARN([
2263 --with-default-path=PATH has no effect on this system.
2264 Edit /etc/login.conf instead.])
2265                 elif test "x$withval" != "xno" ; then
2266                         if test ! -z "$external_path_file" ; then
2267                                 AC_MSG_WARN([
2268 --with-default-path=PATH will only be used if PATH is not defined in
2269 $external_path_file .])
2270                         fi
2271                         user_path="$withval"
2272                         SERVER_PATH_MSG="$withval"
2273                 fi
2274         ],
2275         [ if test "x$external_path_file" = "x/etc/login.conf" ; then
2276                 AC_MSG_WARN([Make sure the path to scp is in /etc/login.conf])
2277         else
2278                 if test ! -z "$external_path_file" ; then
2279                         AC_MSG_WARN([
2280 If PATH is defined in $external_path_file, ensure the path to scp is included,
2281 otherwise scp will not work.])
2282                 fi
2283                 AC_TRY_RUN(
2284                         [
2285 /* find out what STDPATH is */
2286 #include <stdio.h>
2287 #ifdef HAVE_PATHS_H
2288 # include <paths.h>
2289 #endif
2290 #ifndef _PATH_STDPATH
2291 # ifdef _PATH_USERPATH  /* Irix */
2292 #  define _PATH_STDPATH _PATH_USERPATH
2293 # else
2294 #  define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
2295 # endif
2296 #endif
2297 #include <sys/types.h>
2298 #include <sys/stat.h>
2299 #include <fcntl.h>
2300 #define DATA "conftest.stdpath"
2301
2302 main()
2303 {
2304         FILE *fd;
2305         int rc;
2306
2307         fd = fopen(DATA,"w");
2308         if(fd == NULL)
2309                 exit(1);
2310
2311         if ((rc = fprintf(fd,"%s", _PATH_STDPATH)) < 0)
2312                 exit(1);
2313
2314         exit(0);
2315 }
2316                 ], [ user_path=`cat conftest.stdpath` ],
2317                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
2318                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ]
2319         )
2320 # make sure $bindir is in USER_PATH so scp will work
2321                 t_bindir=`eval echo ${bindir}`
2322                 case $t_bindir in
2323                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;;
2324                 esac
2325                 case $t_bindir in
2326                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;;
2327                 esac
2328                 echo $user_path | grep ":$t_bindir"  > /dev/null 2>&1
2329                 if test $? -ne 0  ; then
2330                         echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
2331                         if test $? -ne 0  ; then
2332                                 user_path=$user_path:$t_bindir
2333                                 AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
2334                         fi
2335                 fi
2336         fi ]
2337 )
2338 if test "x$external_path_file" != "x/etc/login.conf" ; then
2339         AC_DEFINE_UNQUOTED(USER_PATH, "$user_path")
2340         AC_SUBST(user_path)
2341 fi
2342
2343 # Set superuser path separately to user path
2344 AC_ARG_WITH(superuser-path,
2345         [  --with-superuser-path=  Specify different path for super-user],
2346         [
2347                 if test "x$withval" != "xno" ; then
2348                         AC_DEFINE_UNQUOTED(SUPERUSER_PATH, "$withval")
2349                         superuser_path=$withval
2350                 fi
2351         ]
2352 )
2353
2354
2355 AC_MSG_CHECKING([if we need to convert IPv4 in IPv6-mapped addresses])
2356 IPV4_IN6_HACK_MSG="no"
2357 AC_ARG_WITH(4in6,
2358         [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
2359         [
2360                 if test "x$withval" != "xno" ; then
2361                         AC_MSG_RESULT(yes)
2362                         AC_DEFINE(IPV4_IN_IPV6)
2363                         IPV4_IN6_HACK_MSG="yes"
2364                 else
2365                         AC_MSG_RESULT(no)
2366                 fi
2367         ],[
2368                 if test "x$inet6_default_4in6" = "xyes"; then
2369                         AC_MSG_RESULT([yes (default)])
2370                         AC_DEFINE(IPV4_IN_IPV6)
2371                         IPV4_IN6_HACK_MSG="yes"
2372                 else
2373                         AC_MSG_RESULT([no (default)])
2374                 fi
2375         ]
2376 )
2377
2378 # Whether to enable BSD auth support
2379 BSD_AUTH_MSG=no
2380 AC_ARG_WITH(bsd-auth,
2381         [  --with-bsd-auth         Enable BSD auth support],
2382         [
2383                 if test "x$withval" != "xno" ; then
2384                         AC_DEFINE(BSD_AUTH)
2385                         BSD_AUTH_MSG=yes
2386                 fi
2387         ]
2388 )
2389
2390 # Where to place sshd.pid
2391 piddir=/var/run
2392 # make sure the directory exists
2393 if test ! -d $piddir ; then
2394         piddir=`eval echo ${sysconfdir}`
2395         case $piddir in
2396                 NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
2397         esac
2398 fi
2399
2400 AC_ARG_WITH(pid-dir,
2401         [  --with-pid-dir=PATH     Specify location of ssh.pid file],
2402         [
2403                 if test "x$withval" != "xno" ; then
2404                         piddir=$withval
2405                         if test ! -d $piddir ; then
2406                         AC_MSG_WARN([** no $piddir directory on this system **])
2407                         fi
2408                 fi
2409         ]
2410 )
2411
2412 AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
2413 AC_SUBST(piddir)
2414
2415 dnl allow user to disable some login recording features
2416 AC_ARG_ENABLE(lastlog,
2417         [  --disable-lastlog       disable use of lastlog even if detected [no]],
2418         [
2419                 if test "x$enableval" = "xno" ; then
2420                         AC_DEFINE(DISABLE_LASTLOG)
2421                 fi
2422         ]
2423 )
2424 AC_ARG_ENABLE(utmp,
2425         [  --disable-utmp          disable use of utmp even if detected [no]],
2426         [
2427                 if test "x$enableval" = "xno" ; then
2428                         AC_DEFINE(DISABLE_UTMP)
2429                 fi
2430         ]
2431 )
2432 AC_ARG_ENABLE(utmpx,
2433         [  --disable-utmpx         disable use of utmpx even if detected [no]],
2434         [
2435                 if test "x$enableval" = "xno" ; then
2436                         AC_DEFINE(DISABLE_UTMPX)
2437                 fi
2438         ]
2439 )
2440 AC_ARG_ENABLE(wtmp,
2441         [  --disable-wtmp          disable use of wtmp even if detected [no]],
2442         [
2443                 if test "x$enableval" = "xno" ; then
2444                         AC_DEFINE(DISABLE_WTMP)
2445                 fi
2446         ]
2447 )
2448 AC_ARG_ENABLE(wtmpx,
2449         [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
2450         [
2451                 if test "x$enableval" = "xno" ; then
2452                         AC_DEFINE(DISABLE_WTMPX)
2453                 fi
2454         ]
2455 )
2456 AC_ARG_ENABLE(libutil,
2457         [  --disable-libutil       disable use of libutil (login() etc.) [no]],
2458         [
2459                 if test "x$enableval" = "xno" ; then
2460                         AC_DEFINE(DISABLE_LOGIN)
2461                 fi
2462         ]
2463 )
2464 AC_ARG_ENABLE(pututline,
2465         [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
2466         [
2467                 if test "x$enableval" = "xno" ; then
2468                         AC_DEFINE(DISABLE_PUTUTLINE)
2469                 fi
2470         ]
2471 )
2472 AC_ARG_ENABLE(pututxline,
2473         [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
2474         [
2475                 if test "x$enableval" = "xno" ; then
2476                         AC_DEFINE(DISABLE_PUTUTXLINE)
2477                 fi
2478         ]
2479 )
2480 AC_ARG_WITH(lastlog,
2481   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
2482         [
2483                 if test "x$withval" = "xno" ; then
2484                         AC_DEFINE(DISABLE_LASTLOG)
2485                 else
2486                         conf_lastlog_location=$withval
2487                 fi
2488         ]
2489 )
2490
2491 dnl lastlog, [uw]tmpx? detection
2492 dnl  NOTE: set the paths in the platform section to avoid the
2493 dnl   need for command-line parameters
2494 dnl lastlog and [uw]tmp are subject to a file search if all else fails
2495
2496 dnl lastlog detection
2497 dnl  NOTE: the code itself will detect if lastlog is a directory
2498 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
2499 AC_TRY_COMPILE([
2500 #include <sys/types.h>
2501 #include <utmp.h>
2502 #ifdef HAVE_LASTLOG_H
2503 #  include <lastlog.h>
2504 #endif
2505 #ifdef HAVE_PATHS_H
2506 #  include <paths.h>
2507 #endif
2508 #ifdef HAVE_LOGIN_H
2509 # include <login.h>
2510 #endif
2511         ],
2512         [ char *lastlog = LASTLOG_FILE; ],
2513         [ AC_MSG_RESULT(yes) ],
2514         [
2515                 AC_MSG_RESULT(no)
2516                 AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
2517                 AC_TRY_COMPILE([
2518 #include <sys/types.h>
2519 #include <utmp.h>
2520 #ifdef HAVE_LASTLOG_H
2521 #  include <lastlog.h>
2522 #endif
2523 #ifdef HAVE_PATHS_H
2524 #  include <paths.h>
2525 #endif
2526                 ],
2527                 [ char *lastlog = _PATH_LASTLOG; ],
2528                 [ AC_MSG_RESULT(yes) ],
2529                 [
2530                         AC_MSG_RESULT(no)
2531                         system_lastlog_path=no
2532                 ])
2533         ]
2534 )
2535
2536 if test -z "$conf_lastlog_location"; then
2537         if test x"$system_lastlog_path" = x"no" ; then
2538                 for f in /var/log/lastlog /usr/adm/lastlog /var/adm/lastlog /etc/security/lastlog ; do
2539                                 if (test -d "$f" || test -f "$f") ; then
2540                                         conf_lastlog_location=$f
2541                                 fi
2542                 done
2543                 if test -z "$conf_lastlog_location"; then
2544                         AC_MSG_WARN([** Cannot find lastlog **])
2545                         dnl Don't define DISABLE_LASTLOG - that means we don't try wtmp/wtmpx
2546                 fi
2547         fi
2548 fi
2549
2550 if test -n "$conf_lastlog_location"; then
2551         AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location")
2552 fi
2553
2554 dnl utmp detection
2555 AC_MSG_CHECKING([if your system defines UTMP_FILE])
2556 AC_TRY_COMPILE([
2557 #include <sys/types.h>
2558 #include <utmp.h>
2559 #ifdef HAVE_PATHS_H
2560 #  include <paths.h>
2561 #endif
2562         ],
2563         [ char *utmp = UTMP_FILE; ],
2564         [ AC_MSG_RESULT(yes) ],
2565         [ AC_MSG_RESULT(no)
2566           system_utmp_path=no ]
2567 )
2568 if test -z "$conf_utmp_location"; then
2569         if test x"$system_utmp_path" = x"no" ; then
2570                 for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
2571                         if test -f $f ; then
2572                                 conf_utmp_location=$f
2573                         fi
2574                 done
2575                 if test -z "$conf_utmp_location"; then
2576                         AC_DEFINE(DISABLE_UTMP)
2577                 fi
2578         fi
2579 fi
2580 if test -n "$conf_utmp_location"; then
2581         AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location")
2582 fi
2583
2584 dnl wtmp detection
2585 AC_MSG_CHECKING([if your system defines WTMP_FILE])
2586 AC_TRY_COMPILE([
2587 #include <sys/types.h>
2588 #include <utmp.h>
2589 #ifdef HAVE_PATHS_H
2590 #  include <paths.h>
2591 #endif
2592         ],
2593         [ char *wtmp = WTMP_FILE; ],
2594         [ AC_MSG_RESULT(yes) ],
2595         [ AC_MSG_RESULT(no)
2596           system_wtmp_path=no ]
2597 )
2598 if test -z "$conf_wtmp_location"; then
2599         if test x"$system_wtmp_path" = x"no" ; then
2600                 for f in /usr/adm/wtmp /var/log/wtmp; do
2601                         if test -f $f ; then
2602                                 conf_wtmp_location=$f
2603                         fi
2604                 done
2605                 if test -z "$conf_wtmp_location"; then
2606                         AC_DEFINE(DISABLE_WTMP)
2607                 fi
2608         fi
2609 fi
2610 if test -n "$conf_wtmp_location"; then
2611         AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location")
2612 fi
2613
2614
2615 dnl utmpx detection - I don't know any system so perverse as to require
2616 dnl  utmpx, but not define UTMPX_FILE (ditto wtmpx.) No doubt it's out
2617 dnl  there, though.
2618 AC_MSG_CHECKING([if your system defines UTMPX_FILE])
2619 AC_TRY_COMPILE([
2620 #include <sys/types.h>
2621 #include <utmp.h>
2622 #ifdef HAVE_UTMPX_H
2623 #include <utmpx.h>
2624 #endif
2625 #ifdef HAVE_PATHS_H
2626 #  include <paths.h>
2627 #endif
2628         ],
2629         [ char *utmpx = UTMPX_FILE; ],
2630         [ AC_MSG_RESULT(yes) ],
2631         [ AC_MSG_RESULT(no)
2632           system_utmpx_path=no ]
2633 )
2634 if test -z "$conf_utmpx_location"; then
2635         if test x"$system_utmpx_path" = x"no" ; then
2636                 AC_DEFINE(DISABLE_UTMPX)
2637         fi
2638 else
2639         AC_DEFINE_UNQUOTED(CONF_UTMPX_FILE, "$conf_utmpx_location")
2640 fi
2641
2642 dnl wtmpx detection
2643 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
2644 AC_TRY_COMPILE([
2645 #include <sys/types.h>
2646 #include <utmp.h>
2647 #ifdef HAVE_UTMPX_H
2648 #include <utmpx.h>
2649 #endif
2650 #ifdef HAVE_PATHS_H
2651 #  include <paths.h>
2652 #endif
2653         ],
2654         [ char *wtmpx = WTMPX_FILE; ],
2655         [ AC_MSG_RESULT(yes) ],
2656         [ AC_MSG_RESULT(no)
2657           system_wtmpx_path=no ]
2658 )
2659 if test -z "$conf_wtmpx_location"; then
2660         if test x"$system_wtmpx_path" = x"no" ; then
2661                 AC_DEFINE(DISABLE_WTMPX)
2662         fi
2663 else
2664         AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location")
2665 fi
2666
2667
2668 if test ! -z "$blibpath" ; then
2669         LDFLAGS="$LDFLAGS $blibflags$blibpath"
2670         AC_MSG_WARN([Please check and edit blibpath in LDFLAGS in Makefile])
2671 fi
2672
2673 dnl remove pam and dl because they are in $LIBPAM
2674 if test "$PAM_MSG" = yes ; then
2675         LIBS=`echo $LIBS | sed 's/-lpam //'`
2676 fi
2677 if test "$ac_cv_lib_pam_pam_set_item" = yes ; then
2678         LIBS=`echo $LIBS | sed 's/-ldl //'`
2679 fi
2680
2681 AC_EXEEXT
2682 AC_CONFIG_FILES([Makefile openbsd-compat/Makefile scard/Makefile ssh_prng_cmds])
2683 AC_OUTPUT
2684
2685 # Print summary of options
2686
2687 # Someone please show me a better way :)
2688 A=`eval echo ${prefix}` ; A=`eval echo ${A}`
2689 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
2690 C=`eval echo ${sbindir}` ; C=`eval echo ${C}`
2691 D=`eval echo ${sysconfdir}` ; D=`eval echo ${D}`
2692 E=`eval echo ${libexecdir}/ssh-askpass` ; E=`eval echo ${E}`
2693 F=`eval echo ${mandir}/${mansubdir}X` ; F=`eval echo ${F}`
2694 G=`eval echo ${piddir}` ; G=`eval echo ${G}`
2695 H=`eval echo ${PRIVSEP_PATH}` ; H=`eval echo ${H}`
2696 I=`eval echo ${user_path}` ; I=`eval echo ${I}`
2697 J=`eval echo ${superuser_path}` ; J=`eval echo ${J}`
2698
2699 echo ""
2700 echo "OpenSSH has been configured with the following options:"
2701 echo "                     User binaries: $B"
2702 echo "                   System binaries: $C"
2703 echo "               Configuration files: $D"
2704 echo "                   Askpass program: $E"
2705 echo "                      Manual pages: $F"
2706 echo "                          PID file: $G"
2707 echo "  Privilege separation chroot path: $H"
2708 if test "x$external_path_file" = "x/etc/login.conf" ; then
2709 echo "   At runtime, sshd will use the path defined in $external_path_file"
2710 echo "   Make sure the path to scp is present, otherwise scp will not work"
2711 else
2712 echo "            sshd default user PATH: $I"
2713         if test ! -z "$external_path_file"; then
2714 echo "   (If PATH is set in $external_path_file it will be used instead. If"
2715 echo "   used, ensure the path to scp is present, otherwise scp will not work.)"
2716         fi
2717 fi
2718 if test ! -z "$superuser_path" ; then
2719 echo "          sshd superuser user PATH: $J"
2720 fi
2721 echo "                    Manpage format: $MANTYPE"
2722 echo "                       DNS support: $DNS_MSG"
2723 echo "                       PAM support: $PAM_MSG"
2724 echo "                 KerberosV support: $KRB5_MSG"
2725 echo "                 Smartcard support: $SCARD_MSG"
2726 echo "                     S/KEY support: $SKEY_MSG"
2727 echo "              TCP Wrappers support: $TCPW_MSG"
2728 echo "              MD5 password support: $MD5_MSG"
2729 echo "       IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
2730 echo "           Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
2731 echo "                  BSD Auth support: $BSD_AUTH_MSG"
2732 echo "              Random number source: $RAND_MSG"
2733 if test ! -z "$USE_RAND_HELPER" ; then
2734 echo "     ssh-rand-helper collects from: $RAND_HELPER_MSG"
2735 fi
2736
2737 echo ""
2738
2739 echo "              Host: ${host}"
2740 echo "          Compiler: ${CC}"
2741 echo "    Compiler flags: ${CFLAGS}"
2742 echo "Preprocessor flags: ${CPPFLAGS}"
2743 echo "      Linker flags: ${LDFLAGS}"
2744 echo "         Libraries: ${LIBWRAP} ${LIBPAM} ${LIBS}"
2745
2746 echo ""
2747
2748 if test "x$PAM_MSG" = "xyes" ; then
2749         echo "PAM is enabled. You may need to install a PAM control file "
2750         echo "for sshd, otherwise password authentication may fail. "
2751         echo "Example PAM control files can be found in the contrib/ "
2752         echo "subdirectory"
2753         echo ""
2754 fi
2755
2756 if test ! -z "$RAND_HELPER_CMDHASH" ; then
2757         echo "WARNING: you are using the builtin random number collection "
2758         echo "service. Please read WARNING.RNG and request that your OS "
2759         echo "vendor includes kernel-based random number collection in "
2760         echo "future versions of your OS."
2761         echo ""
2762 fi
2763