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