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="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 144         IPADDR_IN_DISPLAY=yes
 145         AC_DEFINE(HAVE_SECUREWARE)
 146         AC_DEFINE(USE_PIPES)
 147         AC_DEFINE(LOGIN_NO_ENDOPT)
 148         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 149         AC_DEFINE(DISABLE_UTMP)
 150         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 151         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 152         LIBS="$LIBS -lsec -lsecpw"
 153         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 154         disable_ptmx_check=yes
 155         ;;
 156 *-*-hpux10*)
 157         if test -z "$GCC"; then
 158                 CFLAGS="$CFLAGS -Ae"
 159         fi
 160         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 161         IPADDR_IN_DISPLAY=yes
 162         AC_DEFINE(USE_PIPES)
 163         AC_DEFINE(LOGIN_NO_ENDOPT)
 164         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 165         AC_DEFINE(DISABLE_UTMP)
 166         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 167         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 168         LIBS="$LIBS -lsec"
 169         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 170         ;;
 171 *-*-hpux11*)
 172         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 173         IPADDR_IN_DISPLAY=yes
 174         AC_DEFINE(PAM_SUN_CODEBASE)
 175         AC_DEFINE(USE_PIPES)
 176         AC_DEFINE(LOGIN_NO_ENDOPT)
 177         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 178         AC_DEFINE(DISABLE_UTMP)
 179         AC_DEFINE(LOCKED_PASSWD_STRING, "*")
 180         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 181         LIBS="$LIBS -lsec"
 182         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 183         ;;
 184 *-*-irix5*)
 185         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 186         LDFLAGS="$LDFLAGS"
 187         PATH="$PATH:/usr/etc"
 188         AC_DEFINE(BROKEN_INET_NTOA)
 189         AC_DEFINE(SETEUID_BREAKS_SETUID)
 190         AC_DEFINE(BROKEN_SETREUID)
 191         AC_DEFINE(BROKEN_SETREGID)
 192         AC_DEFINE(WITH_ABBREV_NO_TTY)
 193         AC_DEFINE(LOCKED_PASSWD_STRING, "*LK*")
 194         ;;
 195 *-*-irix6*)
 196         CPPFLAGS="$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 \
 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 strtoul 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                         PAM_MSG="yes"
 901
 902                         AC_DEFINE(USE_PAM)
 903                         if test $ac_cv_lib_dl_dlopen = yes; then
 904                                 LIBPAM="-lpam -ldl"
 905                         else
 906                                 LIBPAM="-lpam"
 907                         fi
 908                         AC_SUBST(LIBPAM)
 909                 fi
 910         ]
 911 )
 912
 913 # Check for older PAM
 914 if test "x$PAM_MSG" = "xyes" ; then
 915         # Check PAM strerror arguments (old PAM)
 916         AC_MSG_CHECKING([whether pam_strerror takes only one argument])
 917         AC_TRY_COMPILE(
 918                 [
 919 #include <stdlib.h>
 920 #include <security/pam_appl.h>
 921                 ],
 922                 [(void)pam_strerror((pam_handle_t *)NULL, -1);],
 923                 [AC_MSG_RESULT(no)],
 924                 [
 925                         AC_DEFINE(HAVE_OLD_PAM)
 926                         AC_MSG_RESULT(yes)
 927                         PAM_MSG="yes (old library)"
 928                 ]
 929         )
 930 fi
 931
 932 # Some systems want crypt() from libcrypt, *not* the version in OpenSSL,
 933 # because the system crypt() is more featureful.
 934 if test "x$check_for_libcrypt_before" = "x1"; then
 935         AC_CHECK_LIB(crypt, crypt)
 936 fi
 937
 938 # Search for OpenSSL
 939 saved_CPPFLAGS="$CPPFLAGS"
 940 saved_LDFLAGS="$LDFLAGS"
 941 AC_ARG_WITH(ssl-dir,
 942         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
 943         [
 944                 if test "x$withval" != "xno" ; then
 945                         if test -d "$withval/lib"; then
 946                                 if test -n "${need_dash_r}"; then
 947                                         LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 948                                 else
 949                                         LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 950                                 fi
 951                         else
 952                                 if test -n "${need_dash_r}"; then
 953                                         LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 954                                 else
 955                                         LDFLAGS="-L${withval} ${LDFLAGS}"
 956                                 fi
 957                         fi
 958                         if test -d "$withval/include"; then
 959                                 CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 960                         else
 961                                 CPPFLAGS="-I${withval} ${CPPFLAGS}"
 962                         fi
 963                 fi
 964         ]
 965 )
 966 LIBS="$LIBS -lcrypto"
 967 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 968         [
 969                 dnl Check default openssl install dir
 970                 if test -n "${need_dash_r}"; then
 971                         LDFLAGS="-L/usr/local/ssl/lib -R/usr/local/ssl/lib ${saved_LDFLAGS}"
 972                 else
 973                         LDFLAGS="-L/usr/local/ssl/lib ${saved_LDFLAGS}"
 974                 fi
 975                 CPPFLAGS="-I/usr/local/ssl/include ${saved_CPPFLAGS}"
 976                 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 977                         [
 978                                 AC_MSG_ERROR([*** Can't find recent OpenSSL libcrypto (see config.log for details) ***])
 979                         ]
 980                 )
 981         ]
 982 )
 983
 984 # Determine OpenSSL header version
 985 AC_MSG_CHECKING([OpenSSL header version])
 986 AC_TRY_RUN(
 987         [
 988 #include <stdio.h>
 989 #include <string.h>
 990 #include <openssl/opensslv.h>
 991 #define DATA "conftest.sslincver"
 992 int main(void) {
 993         FILE *fd;
 994         int rc;
 995
 996         fd = fopen(DATA,"w");
 997         if(fd == NULL)
 998                 exit(1);
 999
1000         if ((rc = fprintf(fd ,"%x (%s)\n", OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT)) <0)
1001                 exit(1);
1002
1003         exit(0);
1004 }
1005         ],
1006         [
1007                 ssl_header_ver=`cat conftest.sslincver`
1008                 AC_MSG_RESULT($ssl_header_ver)
1009         ],
1010         [
1011                 AC_MSG_RESULT(not found)
1012                 AC_MSG_ERROR(OpenSSL version header not found.)
1013         ]
1014 )
1015
1016 # Determine OpenSSL library version
1017 AC_MSG_CHECKING([OpenSSL library version])
1018 AC_TRY_RUN(
1019         [
1020 #include <stdio.h>
1021 #include <string.h>
1022 #include <openssl/opensslv.h>
1023 #include <openssl/crypto.h>
1024 #define DATA "conftest.ssllibver"
1025 int main(void) {
1026         FILE *fd;
1027         int rc;
1028
1029         fd = fopen(DATA,"w");
1030         if(fd == NULL)
1031                 exit(1);
1032
1033         if ((rc = fprintf(fd ,"%x (%s)\n", SSLeay(), SSLeay_version(SSLEAY_VERSION))) <0)
1034                 exit(1);
1035
1036         exit(0);
1037 }
1038         ],
1039         [
1040                 ssl_library_ver=`cat conftest.ssllibver`
1041                 AC_MSG_RESULT($ssl_library_ver)
1042         ],
1043         [
1044                 AC_MSG_RESULT(not found)
1045                 AC_MSG_ERROR(OpenSSL library not found.)
1046         ]
1047 )
1048
1049 # Sanity check OpenSSL headers
1050 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
1051 AC_TRY_RUN(
1052         [
1053 #include <string.h>
1054 #include <openssl/opensslv.h>
1055 int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
1056         ],
1057         [
1058                 AC_MSG_RESULT(yes)
1059         ],
1060         [
1061                 AC_MSG_RESULT(no)
1062                 AC_MSG_ERROR([Your OpenSSL headers do not match your library.
1063 Check config.log for details.
1064 Also see contrib/findssl.sh for help identifying header/library mismatches.])
1065         ]
1066 )
1067
1068 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
1069 # version in OpenSSL. Skip this for PAM
1070 if test "x$check_for_libcrypt_later" = "x1"; then
1071         AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
1072 fi
1073
1074
1075 ### Configure cryptographic random number support
1076
1077 # Check wheter OpenSSL seeds itself
1078 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
1079 AC_TRY_RUN(
1080         [
1081 #include <string.h>
1082 #include <openssl/rand.h>
1083 int main(void) { exit(RAND_status() == 1 ? 0 : 1); }
1084         ],
1085         [
1086                 OPENSSL_SEEDS_ITSELF=yes
1087                 AC_MSG_RESULT(yes)
1088         ],
1089         [
1090                 AC_MSG_RESULT(no)
1091                 # Default to use of the rand helper if OpenSSL doesn't
1092                 # seed itself
1093                 USE_RAND_HELPER=yes
1094         ]
1095 )
1096
1097
1098 # Do we want to force the use of the rand helper?
1099 AC_ARG_WITH(rand-helper,
1100         [  --with-rand-helper      Use subprocess to gather strong randomness ],
1101         [
1102                 if test "x$withval" = "xno" ; then
1103                         # Force use of OpenSSL's internal RNG, even if
1104                         # the previous test showed it to be unseeded.
1105                         if test -z "$OPENSSL_SEEDS_ITSELF" ; then
1106                                 AC_MSG_WARN([*** Forcing use of OpenSSL's non-self-seeding PRNG])
1107                                 OPENSSL_SEEDS_ITSELF=yes
1108                                 USE_RAND_HELPER=""
1109                         fi
1110                 else
1111                         USE_RAND_HELPER=yes
1112                 fi
1113         ],
1114 )
1115
1116 # Which randomness source do we use?
1117 if test ! -z "$OPENSSL_SEEDS_ITSELF" -a -z "$USE_RAND_HELPER" ; then
1118         # OpenSSL only
1119         AC_DEFINE(OPENSSL_PRNG_ONLY)
1120         RAND_MSG="OpenSSL internal ONLY"
1121         INSTALL_SSH_RAND_HELPER=""
1122 elif test ! -z "$USE_RAND_HELPER" ; then
1123         # install rand helper
1124         RAND_MSG="ssh-rand-helper"
1125         INSTALL_SSH_RAND_HELPER="yes"
1126 fi
1127 AC_SUBST(INSTALL_SSH_RAND_HELPER)
1128
1129 ### Configuration of ssh-rand-helper
1130
1131 # PRNGD TCP socket
1132 AC_ARG_WITH(prngd-port,
1133         [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
1134         [
1135                 case "$withval" in
1136                 no)
1137                         withval=""
1138                         ;;
1139                 [[0-9]]*)
1140                         ;;
1141                 *)
1142                         AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
1143                         ;;
1144                 esac
1145                 if test ! -z "$withval" ; then
1146                         PRNGD_PORT="$withval"
1147                         AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT)
1148                 fi
1149         ]
1150 )
1151
1152 # PRNGD Unix domain socket
1153 AC_ARG_WITH(prngd-socket,
1154         [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
1155         [
1156                 case "$withval" in
1157                 yes)
1158                         withval="/var/run/egd-pool"
1159                         ;;
1160                 no)
1161                         withval=""
1162                         ;;
1163                 /*)
1164                         ;;
1165                 *)
1166                         AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
1167                         ;;
1168                 esac
1169
1170                 if test ! -z "$withval" ; then
1171                         if test ! -z "$PRNGD_PORT" ; then
1172                                 AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
1173                         fi
1174                         if test ! -r "$withval" ; then
1175                                 AC_MSG_WARN(Entropy socket is not readable)
1176                         fi
1177                         PRNGD_SOCKET="$withval"
1178                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1179                 fi
1180         ],
1181         [
1182                 # Check for existing socket only if we don't have a random device already
1183                 if test "$USE_RAND_HELPER" = yes ; then
1184                         AC_MSG_CHECKING(for PRNGD/EGD socket)
1185                         # Insert other locations here
1186                         for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
1187                                 if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
1188                                         PRNGD_SOCKET="$sock"
1189                                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1190                                         break;
1191                                 fi
1192                         done
1193                         if test ! -z "$PRNGD_SOCKET" ; then
1194                                 AC_MSG_RESULT($PRNGD_SOCKET)
1195                         else
1196                                 AC_MSG_RESULT(not found)
1197                         fi
1198                 fi
1199         ]
1200 )
1201
1202 # Change default command timeout for hashing entropy source
1203 entropy_timeout=200
1204 AC_ARG_WITH(entropy-timeout,
1205         [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
1206         [
1207                 if test "x$withval" != "xno" ; then
1208                         entropy_timeout=$withval
1209                 fi
1210         ]
1211 )
1212 AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout)
1213
1214 SSH_PRIVSEP_USER=sshd
1215 AC_ARG_WITH(privsep-user,
1216         [  --with-privsep-user=user Specify non-privileged user for privilege separation],
1217         [
1218                 if test -n "$withval"; then
1219                         SSH_PRIVSEP_USER=$withval
1220                 fi
1221         ]
1222 )
1223 AC_DEFINE_UNQUOTED(SSH_PRIVSEP_USER, "$SSH_PRIVSEP_USER")
1224 AC_SUBST(SSH_PRIVSEP_USER)
1225
1226 # We do this little dance with the search path to insure
1227 # that programs that we select for use by installed programs
1228 # (which may be run by the super-user) come from trusted
1229 # locations before they come from the user's private area.
1230 # This should help avoid accidentally configuring some
1231 # random version of a program in someone's personal bin.
1232
1233 OPATH=$PATH
1234 PATH=/bin:/usr/bin
1235 test -h /bin 2> /dev/null && PATH=/usr/bin
1236 test -d /sbin && PATH=$PATH:/sbin
1237 test -d /usr/sbin && PATH=$PATH:/usr/sbin
1238 PATH=$PATH:/etc:$OPATH
1239
1240 # These programs are used by the command hashing source to gather entropy
1241 OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
1242 OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
1243 OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
1244 OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
1245 OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
1246 OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
1247 OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
1248 OSSH_PATH_ENTROPY_PROG(PROG_W, w)
1249 OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
1250 OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
1251 OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
1252 OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
1253 OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
1254 OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
1255 OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
1256 OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
1257 # restore PATH
1258 PATH=$OPATH
1259
1260 # Where does ssh-rand-helper get its randomness from?
1261 INSTALL_SSH_PRNG_CMDS=""
1262 if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
1263         if test ! -z "$PRNGD_PORT" ; then
1264                 RAND_HELPER_MSG="TCP localhost:$PRNGD_PORT"
1265         elif test ! -z "$PRNGD_SOCKET" ; then
1266                 RAND_HELPER_MSG="Unix domain socket \"$PRNGD_SOCKET\""
1267         else
1268                 RAND_HELPER_MSG="Command hashing (timeout $entropy_timeout)"
1269                 RAND_HELPER_CMDHASH=yes
1270                 INSTALL_SSH_PRNG_CMDS="yes"
1271         fi
1272 fi
1273 AC_SUBST(INSTALL_SSH_PRNG_CMDS)
1274
1275
1276 # Cheap hack to ensure NEWS-OS libraries are arranged right.
1277 if test ! -z "$SONY" ; then
1278   LIBS="$LIBS -liberty";
1279 fi
1280
1281 # Checks for data types
1282 AC_CHECK_SIZEOF(char, 1)
1283 AC_CHECK_SIZEOF(short int, 2)
1284 AC_CHECK_SIZEOF(int, 4)
1285 AC_CHECK_SIZEOF(long int, 4)
1286 AC_CHECK_SIZEOF(long long int, 8)
1287
1288 # Sanity check long long for some platforms (AIX)
1289 if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
1290         ac_cv_sizeof_long_long_int=0
1291 fi
1292
1293 # More checks for data types
1294 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
1295         AC_TRY_COMPILE(
1296                 [ #include <sys/types.h> ],
1297                 [ u_int a; a = 1;],
1298                 [ ac_cv_have_u_int="yes" ],
1299                 [ ac_cv_have_u_int="no" ]
1300         )
1301 ])
1302 if test "x$ac_cv_have_u_int" = "xyes" ; then
1303         AC_DEFINE(HAVE_U_INT)
1304         have_u_int=1
1305 fi
1306
1307 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
1308         AC_TRY_COMPILE(
1309                 [ #include <sys/types.h> ],
1310                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1311                 [ ac_cv_have_intxx_t="yes" ],
1312                 [ ac_cv_have_intxx_t="no" ]
1313         )
1314 ])
1315 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
1316         AC_DEFINE(HAVE_INTXX_T)
1317         have_intxx_t=1
1318 fi
1319
1320 if (test -z "$have_intxx_t" && \
1321            test "x$ac_cv_header_stdint_h" = "xyes")
1322 then
1323     AC_MSG_CHECKING([for intXX_t types in stdint.h])
1324         AC_TRY_COMPILE(
1325                 [ #include <stdint.h> ],
1326                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1327                 [
1328                         AC_DEFINE(HAVE_INTXX_T)
1329                         AC_MSG_RESULT(yes)
1330                 ],
1331                 [ AC_MSG_RESULT(no) ]
1332         )
1333 fi
1334
1335 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
1336         AC_TRY_COMPILE(
1337                 [
1338 #include <sys/types.h>
1339 #ifdef HAVE_STDINT_H
1340 # include <stdint.h>
1341 #endif
1342 #include <sys/socket.h>
1343 #ifdef HAVE_SYS_BITYPES_H
1344 # include <sys/bitypes.h>
1345 #endif
1346                 ],
1347                 [ int64_t a; a = 1;],
1348                 [ ac_cv_have_int64_t="yes" ],
1349                 [ ac_cv_have_int64_t="no" ]
1350         )
1351 ])
1352 if test "x$ac_cv_have_int64_t" = "xyes" ; then
1353         AC_DEFINE(HAVE_INT64_T)
1354 fi
1355
1356 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
1357         AC_TRY_COMPILE(
1358                 [ #include <sys/types.h> ],
1359                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1360                 [ ac_cv_have_u_intxx_t="yes" ],
1361                 [ ac_cv_have_u_intxx_t="no" ]
1362         )
1363 ])
1364 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
1365         AC_DEFINE(HAVE_U_INTXX_T)
1366         have_u_intxx_t=1
1367 fi
1368
1369 if test -z "$have_u_intxx_t" ; then
1370     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
1371         AC_TRY_COMPILE(
1372                 [ #include <sys/socket.h> ],
1373                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1374                 [
1375                         AC_DEFINE(HAVE_U_INTXX_T)
1376                         AC_MSG_RESULT(yes)
1377                 ],
1378                 [ AC_MSG_RESULT(no) ]
1379         )
1380 fi
1381
1382 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
1383         AC_TRY_COMPILE(
1384                 [ #include <sys/types.h> ],
1385                 [ u_int64_t a; a = 1;],
1386                 [ ac_cv_have_u_int64_t="yes" ],
1387                 [ ac_cv_have_u_int64_t="no" ]
1388         )
1389 ])
1390 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
1391         AC_DEFINE(HAVE_U_INT64_T)
1392         have_u_int64_t=1
1393 fi
1394
1395 if test -z "$have_u_int64_t" ; then
1396     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
1397         AC_TRY_COMPILE(
1398                 [ #include <sys/bitypes.h> ],
1399                 [ u_int64_t a; a = 1],
1400                 [
1401                         AC_DEFINE(HAVE_U_INT64_T)
1402                         AC_MSG_RESULT(yes)
1403                 ],
1404                 [ AC_MSG_RESULT(no) ]
1405         )
1406 fi
1407
1408 if test -z "$have_u_intxx_t" ; then
1409         AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
1410                 AC_TRY_COMPILE(
1411                         [
1412 #include <sys/types.h>
1413                         ],
1414                         [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
1415                         [ ac_cv_have_uintxx_t="yes" ],
1416                         [ ac_cv_have_uintxx_t="no" ]
1417                 )
1418         ])
1419         if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
1420                 AC_DEFINE(HAVE_UINTXX_T)
1421         fi
1422 fi
1423
1424 if test -z "$have_uintxx_t" ; then
1425     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
1426         AC_TRY_COMPILE(
1427                 [ #include <stdint.h> ],
1428                 [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
1429                 [
1430                         AC_DEFINE(HAVE_UINTXX_T)
1431                         AC_MSG_RESULT(yes)
1432                 ],
1433                 [ AC_MSG_RESULT(no) ]
1434         )
1435 fi
1436
1437 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
1438            test "x$ac_cv_header_sys_bitypes_h" = "xyes")
1439 then
1440         AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
1441         AC_TRY_COMPILE(
1442                 [
1443 #include <sys/bitypes.h>
1444                 ],
1445                 [
1446                         int8_t a; int16_t b; int32_t c;
1447                         u_int8_t e; u_int16_t f; u_int32_t g;
1448                         a = b = c = e = f = g = 1;
1449                 ],
1450                 [
1451                         AC_DEFINE(HAVE_U_INTXX_T)
1452                         AC_DEFINE(HAVE_INTXX_T)
1453                         AC_MSG_RESULT(yes)
1454                 ],
1455                 [AC_MSG_RESULT(no)]
1456         )
1457 fi
1458
1459
1460 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
1461         AC_TRY_COMPILE(
1462                 [
1463 #include <sys/types.h>
1464                 ],
1465                 [ u_char foo; foo = 125; ],
1466                 [ ac_cv_have_u_char="yes" ],
1467                 [ ac_cv_have_u_char="no" ]
1468         )
1469 ])
1470 if test "x$ac_cv_have_u_char" = "xyes" ; then
1471         AC_DEFINE(HAVE_U_CHAR)
1472 fi
1473
1474 TYPE_SOCKLEN_T
1475
1476 AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
1477
1478 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
1479         AC_TRY_COMPILE(
1480                 [
1481 #include <sys/types.h>
1482                 ],
1483                 [ size_t foo; foo = 1235; ],
1484                 [ ac_cv_have_size_t="yes" ],
1485                 [ ac_cv_have_size_t="no" ]
1486         )
1487 ])
1488 if test "x$ac_cv_have_size_t" = "xyes" ; then
1489         AC_DEFINE(HAVE_SIZE_T)
1490 fi
1491
1492 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
1493         AC_TRY_COMPILE(
1494                 [
1495 #include <sys/types.h>
1496                 ],
1497                 [ ssize_t foo; foo = 1235; ],
1498                 [ ac_cv_have_ssize_t="yes" ],
1499                 [ ac_cv_have_ssize_t="no" ]
1500         )
1501 ])
1502 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
1503         AC_DEFINE(HAVE_SSIZE_T)
1504 fi
1505
1506 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
1507         AC_TRY_COMPILE(
1508                 [
1509 #include <time.h>
1510                 ],
1511                 [ clock_t foo; foo = 1235; ],
1512                 [ ac_cv_have_clock_t="yes" ],
1513                 [ ac_cv_have_clock_t="no" ]
1514         )
1515 ])
1516 if test "x$ac_cv_have_clock_t" = "xyes" ; then
1517         AC_DEFINE(HAVE_CLOCK_T)
1518 fi
1519
1520 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
1521         AC_TRY_COMPILE(
1522                 [
1523 #include <sys/types.h>
1524 #include <sys/socket.h>
1525                 ],
1526                 [ sa_family_t foo; foo = 1235; ],
1527                 [ ac_cv_have_sa_family_t="yes" ],
1528                 [ AC_TRY_COMPILE(
1529                   [
1530 #include <sys/types.h>
1531 #include <sys/socket.h>
1532 #include <netinet/in.h>
1533                 ],
1534                 [ sa_family_t foo; foo = 1235; ],
1535                 [ ac_cv_have_sa_family_t="yes" ],
1536
1537                 [ ac_cv_have_sa_family_t="no" ]
1538         )]
1539         )
1540 ])
1541 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
1542         AC_DEFINE(HAVE_SA_FAMILY_T)
1543 fi
1544
1545 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
1546         AC_TRY_COMPILE(
1547                 [
1548 #include <sys/types.h>
1549                 ],
1550                 [ pid_t foo; foo = 1235; ],
1551                 [ ac_cv_have_pid_t="yes" ],
1552                 [ ac_cv_have_pid_t="no" ]
1553         )
1554 ])
1555 if test "x$ac_cv_have_pid_t" = "xyes" ; then
1556         AC_DEFINE(HAVE_PID_T)
1557 fi
1558
1559 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
1560         AC_TRY_COMPILE(
1561                 [
1562 #include <sys/types.h>
1563                 ],
1564                 [ mode_t foo; foo = 1235; ],
1565                 [ ac_cv_have_mode_t="yes" ],
1566                 [ ac_cv_have_mode_t="no" ]
1567         )
1568 ])
1569 if test "x$ac_cv_have_mode_t" = "xyes" ; then
1570         AC_DEFINE(HAVE_MODE_T)
1571 fi
1572
1573
1574 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
1575         AC_TRY_COMPILE(
1576                 [
1577 #include <sys/types.h>
1578 #include <sys/socket.h>
1579                 ],
1580                 [ struct sockaddr_storage s; ],
1581                 [ ac_cv_have_struct_sockaddr_storage="yes" ],
1582                 [ ac_cv_have_struct_sockaddr_storage="no" ]
1583         )
1584 ])
1585 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
1586         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
1587 fi
1588
1589 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
1590         AC_TRY_COMPILE(
1591                 [
1592 #include <sys/types.h>
1593 #include <netinet/in.h>
1594                 ],
1595                 [ struct sockaddr_in6 s; s.sin6_family = 0; ],
1596                 [ ac_cv_have_struct_sockaddr_in6="yes" ],
1597                 [ ac_cv_have_struct_sockaddr_in6="no" ]
1598         )
1599 ])
1600 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
1601         AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
1602 fi
1603
1604 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
1605         AC_TRY_COMPILE(
1606                 [
1607 #include <sys/types.h>
1608 #include <netinet/in.h>
1609                 ],
1610                 [ struct in6_addr s; s.s6_addr[0] = 0; ],
1611                 [ ac_cv_have_struct_in6_addr="yes" ],
1612                 [ ac_cv_have_struct_in6_addr="no" ]
1613         )
1614 ])
1615 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
1616         AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
1617 fi
1618
1619 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
1620         AC_TRY_COMPILE(
1621                 [
1622 #include <sys/types.h>
1623 #include <sys/socket.h>
1624 #include <netdb.h>
1625                 ],
1626                 [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
1627                 [ ac_cv_have_struct_addrinfo="yes" ],
1628                 [ ac_cv_have_struct_addrinfo="no" ]
1629         )
1630 ])
1631 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
1632         AC_DEFINE(HAVE_STRUCT_ADDRINFO)
1633 fi
1634
1635 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
1636         AC_TRY_COMPILE(
1637                 [ #include <sys/time.h> ],
1638                 [ struct timeval tv; tv.tv_sec = 1;],
1639                 [ ac_cv_have_struct_timeval="yes" ],
1640                 [ ac_cv_have_struct_timeval="no" ]
1641         )
1642 ])
1643 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
1644         AC_DEFINE(HAVE_STRUCT_TIMEVAL)
1645         have_struct_timeval=1
1646 fi
1647
1648 AC_CHECK_TYPES(struct timespec)
1649
1650 # We need int64_t or else certian parts of the compile will fail.
1651 if test "x$ac_cv_have_int64_t" = "xno" -a \
1652         "x$ac_cv_sizeof_long_int" != "x8" -a \
1653         "x$ac_cv_sizeof_long_long_int" = "x0" ; then
1654         echo "OpenSSH requires int64_t support.  Contact your vendor or install"
1655         echo "an alternative compiler (I.E., GCC) before continuing."
1656         echo ""
1657         exit 1;
1658 else
1659 dnl test snprintf (broken on SCO w/gcc)
1660         AC_TRY_RUN(
1661                 [
1662 #include <stdio.h>
1663 #include <string.h>
1664 #ifdef HAVE_SNPRINTF
1665 main()
1666 {
1667         char buf[50];
1668         char expected_out[50];
1669         int mazsize = 50 ;
1670 #if (SIZEOF_LONG_INT == 8)
1671         long int num = 0x7fffffffffffffff;
1672 #else
1673         long long num = 0x7fffffffffffffffll;
1674 #endif
1675         strcpy(expected_out, "9223372036854775807");
1676         snprintf(buf, mazsize, "%lld", num);
1677         if(strcmp(buf, expected_out) != 0)
1678                 exit(1);
1679         exit(0);
1680 }
1681 #else
1682 main() { exit(0); }
1683 #endif
1684                 ], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ]
1685         )
1686 fi
1687
1688 dnl Checks for structure members
1689 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
1690 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
1691 OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
1692 OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
1693 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
1694 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
1695 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
1696 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
1697 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
1698 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
1699 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
1700 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
1701 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
1702 OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
1703 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
1704 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
1705 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
1706
1707 AC_CHECK_MEMBERS([struct stat.st_blksize])
1708
1709 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
1710                 ac_cv_have_ss_family_in_struct_ss, [
1711         AC_TRY_COMPILE(
1712                 [
1713 #include <sys/types.h>
1714 #include <sys/socket.h>
1715                 ],
1716                 [ struct sockaddr_storage s; s.ss_family = 1; ],
1717                 [ ac_cv_have_ss_family_in_struct_ss="yes" ],
1718                 [ ac_cv_have_ss_family_in_struct_ss="no" ],
1719         )
1720 ])
1721 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
1722         AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
1723 fi
1724
1725 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
1726                 ac_cv_have___ss_family_in_struct_ss, [
1727         AC_TRY_COMPILE(
1728                 [
1729 #include <sys/types.h>
1730 #include <sys/socket.h>
1731                 ],
1732                 [ struct sockaddr_storage s; s.__ss_family = 1; ],
1733                 [ ac_cv_have___ss_family_in_struct_ss="yes" ],
1734                 [ ac_cv_have___ss_family_in_struct_ss="no" ]
1735         )
1736 ])
1737 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
1738         AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
1739 fi
1740
1741 AC_CACHE_CHECK([for pw_class field in struct passwd],
1742                 ac_cv_have_pw_class_in_struct_passwd, [
1743         AC_TRY_COMPILE(
1744                 [
1745 #include <pwd.h>
1746                 ],
1747                 [ struct passwd p; p.pw_class = 0; ],
1748                 [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
1749                 [ ac_cv_have_pw_class_in_struct_passwd="no" ]
1750         )
1751 ])
1752 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
1753         AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD)
1754 fi
1755
1756 AC_CACHE_CHECK([for pw_expire field in struct passwd],
1757                 ac_cv_have_pw_expire_in_struct_passwd, [
1758         AC_TRY_COMPILE(
1759                 [
1760 #include <pwd.h>
1761                 ],
1762                 [ struct passwd p; p.pw_expire = 0; ],
1763                 [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
1764                 [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
1765         )
1766 ])
1767 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
1768         AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD)
1769 fi
1770
1771 AC_CACHE_CHECK([for pw_change field in struct passwd],
1772                 ac_cv_have_pw_change_in_struct_passwd, [
1773         AC_TRY_COMPILE(
1774                 [
1775 #include <pwd.h>
1776                 ],
1777                 [ struct passwd p; p.pw_change = 0; ],
1778                 [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
1779                 [ ac_cv_have_pw_change_in_struct_passwd="no" ]
1780         )
1781 ])
1782 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
1783         AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD)
1784 fi
1785
1786 dnl make sure we're using the real structure members and not defines
1787 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
1788                 ac_cv_have_accrights_in_msghdr, [
1789         AC_TRY_RUN(
1790                 [
1791 #include <sys/types.h>
1792 #include <sys/socket.h>
1793 #include <sys/uio.h>
1794 int main() {
1795 #ifdef msg_accrights
1796 exit(1);
1797 #endif
1798 struct msghdr m;
1799 m.msg_accrights = 0;
1800 exit(0);
1801 }
1802                 ],
1803                 [ ac_cv_have_accrights_in_msghdr="yes" ],
1804                 [ ac_cv_have_accrights_in_msghdr="no" ]
1805         )
1806 ])
1807 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
1808         AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR)
1809 fi
1810
1811 AC_CACHE_CHECK([for msg_control field in struct msghdr],
1812                 ac_cv_have_control_in_msghdr, [
1813         AC_TRY_RUN(
1814                 [
1815 #include <sys/types.h>
1816 #include <sys/socket.h>
1817 #include <sys/uio.h>
1818 int main() {
1819 #ifdef msg_control
1820 exit(1);
1821 #endif
1822 struct msghdr m;
1823 m.msg_control = 0;
1824 exit(0);
1825 }
1826                 ],
1827                 [ ac_cv_have_control_in_msghdr="yes" ],
1828                 [ ac_cv_have_control_in_msghdr="no" ]
1829         )
1830 ])
1831 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
1832         AC_DEFINE(HAVE_CONTROL_IN_MSGHDR)
1833 fi
1834
1835 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
1836         AC_TRY_LINK([],
1837                 [ extern char *__progname; printf("%s", __progname); ],
1838                 [ ac_cv_libc_defines___progname="yes" ],
1839                 [ ac_cv_libc_defines___progname="no" ]
1840         )
1841 ])
1842 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
1843         AC_DEFINE(HAVE___PROGNAME)
1844 fi
1845
1846 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
1847         AC_TRY_LINK([
1848 #include <stdio.h>
1849 ],
1850                 [ printf("%s", __FUNCTION__); ],
1851                 [ ac_cv_cc_implements___FUNCTION__="yes" ],
1852                 [ ac_cv_cc_implements___FUNCTION__="no" ]
1853         )
1854 ])
1855 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
1856         AC_DEFINE(HAVE___FUNCTION__)
1857 fi
1858
1859 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
1860         AC_TRY_LINK([
1861 #include <stdio.h>
1862 ],
1863                 [ printf("%s", __func__); ],
1864                 [ ac_cv_cc_implements___func__="yes" ],
1865                 [ ac_cv_cc_implements___func__="no" ]
1866         )
1867 ])
1868 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
1869         AC_DEFINE(HAVE___func__)
1870 fi
1871
1872 AC_CACHE_CHECK([whether getopt has optreset support],
1873                 ac_cv_have_getopt_optreset, [
1874         AC_TRY_LINK(
1875                 [
1876 #include <getopt.h>
1877                 ],
1878                 [ extern int optreset; optreset = 0; ],
1879                 [ ac_cv_have_getopt_optreset="yes" ],
1880                 [ ac_cv_have_getopt_optreset="no" ]
1881         )
1882 ])
1883 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
1884         AC_DEFINE(HAVE_GETOPT_OPTRESET)
1885 fi
1886
1887 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
1888         AC_TRY_LINK([],
1889                 [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
1890                 [ ac_cv_libc_defines_sys_errlist="yes" ],
1891                 [ ac_cv_libc_defines_sys_errlist="no" ]
1892         )
1893 ])
1894 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
1895         AC_DEFINE(HAVE_SYS_ERRLIST)
1896 fi
1897
1898
1899 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
1900         AC_TRY_LINK([],
1901                 [ extern int sys_nerr; printf("%i", sys_nerr);],
1902                 [ ac_cv_libc_defines_sys_nerr="yes" ],
1903                 [ ac_cv_libc_defines_sys_nerr="no" ]
1904         )
1905 ])
1906 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
1907         AC_DEFINE(HAVE_SYS_NERR)
1908 fi
1909
1910 SCARD_MSG="no"
1911 # Check whether user wants sectok support
1912 AC_ARG_WITH(sectok,
1913         [  --with-sectok           Enable smartcard support using libsectok],
1914         [
1915                 if test "x$withval" != "xno" ; then
1916                         if test "x$withval" != "xyes" ; then
1917                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1918                                 LDFLAGS="$LDFLAGS -L${withval}"
1919                                 if test ! -z "$need_dash_r" ; then
1920                                         LDFLAGS="$LDFLAGS -R${withval}"
1921                                 fi
1922                                 if test ! -z "$blibpath" ; then
1923                                         blibpath="$blibpath:${withval}"
1924                                 fi
1925                         fi
1926                         AC_CHECK_HEADERS(sectok.h)
1927                         if test "$ac_cv_header_sectok_h" != yes; then
1928                                 AC_MSG_ERROR(Can't find sectok.h)
1929                         fi
1930                         AC_CHECK_LIB(sectok, sectok_open)
1931                         if test "$ac_cv_lib_sectok_sectok_open" != yes; then
1932                                 AC_MSG_ERROR(Can't find libsectok)
1933                         fi
1934                         AC_DEFINE(SMARTCARD)
1935                         AC_DEFINE(USE_SECTOK)
1936                         SCARD_MSG="yes, using sectok"
1937                 fi
1938         ]
1939 )
1940
1941 # Check whether user wants OpenSC support
1942 AC_ARG_WITH(opensc,
1943         AC_HELP_STRING([--with-opensc=PFX],
1944                        [Enable smartcard support using OpenSC]),
1945         opensc_config_prefix="$withval", opensc_config_prefix="")
1946 if test x$opensc_config_prefix != x ; then
1947   OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
1948   AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
1949   if test "$OPENSC_CONFIG" != "no"; then
1950     LIBOPENSC_CFLAGS=`$OPENSC_CONFIG --cflags`
1951     LIBOPENSC_LIBS=`$OPENSC_CONFIG --libs`
1952     CPPFLAGS="$CPPFLAGS $LIBOPENSC_CFLAGS"
1953     LDFLAGS="$LDFLAGS $LIBOPENSC_LIBS"
1954     AC_DEFINE(SMARTCARD)
1955     AC_DEFINE(USE_OPENSC)
1956     SCARD_MSG="yes, using OpenSC"
1957   fi
1958 fi
1959
1960 # Check whether user wants DNS support
1961 DNS_MSG="no"
1962 AC_ARG_WITH(dns,
1963         [  --with-dns              Support for fetching keys from DNS (experimental)],
1964         [
1965                 if test "x$withval" != "xno" ; then
1966                         DNS_MSG="yes"
1967                         AC_DEFINE(DNS)
1968                         AC_SEARCH_LIBS(getrrsetbyname, resolv,
1969                                 [AC_DEFINE(HAVE_GETRRSETBYNAME)],
1970                                 [
1971                                         # Needed by our getrrsetbyname()
1972                                         AC_SEARCH_LIBS(res_query, resolv)
1973                                         AC_SEARCH_LIBS(dn_expand, resolv)
1974                                         AC_CHECK_FUNCS(_getshort _getlong)
1975                                         AC_CHECK_MEMBER(HEADER.ad,
1976                                                 [AC_DEFINE(HAVE_HEADER_AD)],,
1977                                                 [#include <arpa/nameser.h>])
1978                                 ])
1979                 fi
1980         ]
1981 )
1982
1983 # Check whether user wants Kerberos 5 support
1984 KRB5_MSG="no"
1985 AC_ARG_WITH(kerberos5,
1986         [  --with-kerberos5=PATH   Enable Kerberos 5 support],
1987         [
1988                 if test "x$withval" != "xno" ; then
1989                         if test "x$withval" = "xyes" ; then
1990                                 KRB5ROOT="/usr/local"
1991                         else
1992                                 KRB5ROOT=${withval}
1993                         fi
1994                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
1995                         LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
1996                         AC_DEFINE(KRB5)
1997                         KRB5_MSG="yes"
1998                         AC_MSG_CHECKING(whether we are using Heimdal)
1999                         AC_TRY_COMPILE([ #include <krb5.h> ],
2000                                        [ char *tmp = heimdal_version; ],
2001                                        [ AC_MSG_RESULT(yes)
2002                                          AC_DEFINE(HEIMDAL)
2003                                          K5LIBS="-lkrb5 -ldes -lcom_err -lasn1 -lroken"
2004                                        ],
2005                                        [ AC_MSG_RESULT(no)
2006                                          K5LIBS="-lkrb5 -lk5crypto -lcom_err"
2007                                        ]
2008                         )
2009                         if test ! -z "$need_dash_r" ; then
2010                                 LDFLAGS="$LDFLAGS -R${KRB5ROOT}/lib"
2011                         fi
2012                         if test ! -z "$blibpath" ; then
2013                                 blibpath="$blibpath:${KRB5ROOT}/lib"
2014                         fi
2015                         AC_SEARCH_LIBS(dn_expand, resolv)
2016
2017                         AC_CHECK_LIB(gssapi,gss_init_sec_context,
2018                                 [ AC_DEFINE(GSSAPI)
2019                                   K5LIBS="-lgssapi $K5LIBS" ],
2020                                 [ AC_CHECK_LIB(gssapi_krb5,gss_init_sec_context,
2021                                         [ AC_DEFINE(GSSAPI)
2022                                           K5LIBS="-lgssapi_krb5 $K5LIBS" ],
2023                                         AC_MSG_WARN([Cannot find any suitable gss-api library - build may fail]),
2024                                         $K5LIBS)
2025                                 ],
2026                                 $K5LIBS)
2027
2028                         AC_CHECK_HEADER(gssapi.h, ,
2029                                 [ unset ac_cv_header_gssapi_h
2030                                   CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
2031                                   AC_CHECK_HEADERS(gssapi.h, ,
2032                                         AC_MSG_WARN([Cannot find any suitable gss-api header - build may fail])
2033                                   )
2034                                 ]
2035                         )
2036
2037                         oldCPP="$CPPFLAGS"
2038                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include/gssapi"
2039                         AC_CHECK_HEADER(gssapi_krb5.h, ,
2040                                         [ CPPFLAGS="$oldCPP" ])
2041
2042                         KRB5=yes
2043                 fi
2044         ]
2045 )
2046 LIBS="$LIBS $K5LIBS"
2047
2048 # Looking for programs, paths and files
2049
2050 PRIVSEP_PATH=/var/empty
2051 AC_ARG_WITH(privsep-path,
2052         [  --with-privsep-path=xxx Path for privilege separation chroot (default=/var/empty)],
2053         [
2054                 if test "x$withval" != "$no" ; then
2055                         PRIVSEP_PATH=$withval
2056                 fi
2057         ]
2058 )
2059 AC_SUBST(PRIVSEP_PATH)
2060
2061 AC_ARG_WITH(xauth,
2062         [  --with-xauth=PATH       Specify path to xauth program ],
2063         [
2064                 if test "x$withval" != "xno" ; then
2065                         xauth_path=$withval
2066                 fi
2067         ],
2068         [
2069                 TestPath="$PATH"
2070                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X/bin"
2071                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/bin/X11"
2072                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X11R6/bin"
2073                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/openwin/bin"
2074                 AC_PATH_PROG(xauth_path, xauth, , $TestPath)
2075                 if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
2076                         xauth_path="/usr/openwin/bin/xauth"
2077                 fi
2078         ]
2079 )
2080
2081 STRIP_OPT=-s
2082 AC_ARG_ENABLE(strip,
2083         [  --disable-strip         Disable calling strip(1) on install],
2084         [
2085                 if test "x$enableval" = "xno" ; then
2086                         STRIP_OPT=
2087                 fi
2088         ]
2089 )
2090 AC_SUBST(STRIP_OPT)
2091
2092 if test -z "$xauth_path" ; then
2093         XAUTH_PATH="undefined"
2094         AC_SUBST(XAUTH_PATH)
2095 else
2096         AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
2097         XAUTH_PATH=$xauth_path
2098         AC_SUBST(XAUTH_PATH)
2099 fi
2100
2101 # Check for mail directory (last resort if we cannot get it from headers)
2102 if test ! -z "$MAIL" ; then
2103         maildir=`dirname $MAIL`
2104         AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
2105 fi
2106
2107 if test -z "$no_dev_ptmx" ; then
2108         if test "x$disable_ptmx_check" != "xyes" ; then
2109                 AC_CHECK_FILE("/dev/ptmx",
2110                         [
2111                                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
2112                                 have_dev_ptmx=1
2113                         ]
2114                 )
2115         fi
2116 fi
2117 AC_CHECK_FILE("/dev/ptc",
2118         [
2119                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
2120                 have_dev_ptc=1
2121         ]
2122 )
2123
2124 # Options from here on. Some of these are preset by platform above
2125 AC_ARG_WITH(mantype,
2126         [  --with-mantype=man|cat|doc  Set man page type],
2127         [
2128                 case "$withval" in
2129                 man|cat|doc)
2130                         MANTYPE=$withval
2131                         ;;
2132                 *)
2133                         AC_MSG_ERROR(invalid man type: $withval)
2134                         ;;
2135                 esac
2136         ]
2137 )
2138 if test -z "$MANTYPE"; then
2139         TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
2140         AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
2141         if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
2142                 MANTYPE=doc
2143         elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
2144                 MANTYPE=man
2145         else
2146                 MANTYPE=cat
2147         fi
2148 fi
2149 AC_SUBST(MANTYPE)
2150 if test "$MANTYPE" = "doc"; then
2151         mansubdir=man;
2152 else
2153         mansubdir=$MANTYPE;
2154 fi
2155 AC_SUBST(mansubdir)
2156
2157 # Check whether to enable MD5 passwords
2158 MD5_MSG="no"
2159 AC_ARG_WITH(md5-passwords,
2160         [  --with-md5-passwords    Enable use of MD5 passwords],
2161         [
2162                 if test "x$withval" != "xno" ; then
2163                         AC_DEFINE(HAVE_MD5_PASSWORDS)
2164                         MD5_MSG="yes"
2165                 fi
2166         ]
2167 )
2168
2169 # Whether to disable shadow password support
2170 AC_ARG_WITH(shadow,
2171         [  --without-shadow        Disable shadow password support],
2172         [
2173                 if test "x$withval" = "xno" ; then
2174                         AC_DEFINE(DISABLE_SHADOW)
2175                         disable_shadow=yes
2176                 fi
2177         ]
2178 )
2179
2180 if test -z "$disable_shadow" ; then
2181         AC_MSG_CHECKING([if the systems has expire shadow information])
2182         AC_TRY_COMPILE(
2183         [
2184 #include <sys/types.h>
2185 #include <shadow.h>
2186         struct spwd sp;
2187         ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
2188         [ sp_expire_available=yes ], []
2189         )
2190
2191         if test "x$sp_expire_available" = "xyes" ; then
2192                 AC_MSG_RESULT(yes)
2193                 AC_DEFINE(HAS_SHADOW_EXPIRE)
2194         else
2195                 AC_MSG_RESULT(no)
2196         fi
2197 fi
2198
2199 # Use ip address instead of hostname in $DISPLAY
2200 if test ! -z "$IPADDR_IN_DISPLAY" ; then
2201         DISPLAY_HACK_MSG="yes"
2202         AC_DEFINE(IPADDR_IN_DISPLAY)
2203 else
2204         DISPLAY_HACK_MSG="no"
2205         AC_ARG_WITH(ipaddr-display,
2206                 [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
2207                 [
2208                         if test "x$withval" != "xno" ; then
2209                                 AC_DEFINE(IPADDR_IN_DISPLAY)
2210                                 DISPLAY_HACK_MSG="yes"
2211                         fi
2212                 ]
2213         )
2214 fi
2215
2216 # check for /etc/default/login and use it if present.
2217 AC_ARG_ENABLE(etc-default-login,
2218         [  --disable-etc-default-login       Disable using PATH from /etc/default/login [no]],,
2219 [
2220 AC_CHECK_FILE("/etc/default/login", [ external_path_file=/etc/default/login ])
2221
2222 if test "x$external_path_file" = "x/etc/default/login"; then
2223         AC_DEFINE(HAVE_ETC_DEFAULT_LOGIN)
2224 fi
2225 ])
2226
2227 dnl BSD systems use /etc/login.conf so --with-default-path= has no effect
2228 if test $ac_cv_func_login_getcapbool = "yes" -a \
2229         $ac_cv_header_login_cap_h = "yes" ; then
2230         external_path_file=/etc/login.conf
2231 fi
2232
2233 # Whether to mess with the default path
2234 SERVER_PATH_MSG="(default)"
2235 AC_ARG_WITH(default-path,
2236         [  --with-default-path=    Specify default \$PATH environment for server],
2237         [
2238                 if test "x$external_path_file" = "x/etc/login.conf" ; then
2239                         AC_MSG_WARN([
2240 --with-default-path=PATH has no effect on this system.
2241 Edit /etc/login.conf instead.])
2242                 elif test "x$withval" != "xno" ; then
2243                         if test ! -z "$external_path_file" ; then
2244                                 AC_MSG_WARN([
2245 --with-default-path=PATH will only be used if PATH is not defined in
2246 $external_path_file .])
2247                         fi
2248                         user_path="$withval"
2249                         SERVER_PATH_MSG="$withval"
2250                 fi
2251         ],
2252         [ if test "x$external_path_file" = "x/etc/login.conf" ; then
2253                 AC_MSG_WARN([Make sure the path to scp is in /etc/login.conf])
2254         else
2255                 if test ! -z "$external_path_file" ; then
2256                         AC_MSG_WARN([
2257 If PATH is defined in $external_path_file, ensure the path to scp is included,
2258 otherwise scp will not work.])
2259                 fi
2260                 AC_TRY_RUN(
2261                         [
2262 /* find out what STDPATH is */
2263 #include <stdio.h>
2264 #ifdef HAVE_PATHS_H
2265 # include <paths.h>
2266 #endif
2267 #ifndef _PATH_STDPATH
2268 # ifdef _PATH_USERPATH  /* Irix */
2269 #  define _PATH_STDPATH _PATH_USERPATH
2270 # else
2271 #  define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
2272 # endif
2273 #endif
2274 #include <sys/types.h>
2275 #include <sys/stat.h>
2276 #include <fcntl.h>
2277 #define DATA "conftest.stdpath"
2278
2279 main()
2280 {
2281         FILE *fd;
2282         int rc;
2283
2284         fd = fopen(DATA,"w");
2285         if(fd == NULL)
2286                 exit(1);
2287
2288         if ((rc = fprintf(fd,"%s", _PATH_STDPATH)) < 0)
2289                 exit(1);
2290
2291         exit(0);
2292 }
2293                 ], [ user_path=`cat conftest.stdpath` ],
2294                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
2295                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ]
2296         )
2297 # make sure $bindir is in USER_PATH so scp will work
2298                 t_bindir=`eval echo ${bindir}`
2299                 case $t_bindir in
2300                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;;
2301                 esac
2302                 case $t_bindir in
2303                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;;
2304                 esac
2305                 echo $user_path | grep ":$t_bindir"  > /dev/null 2>&1
2306                 if test $? -ne 0  ; then
2307                         echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
2308                         if test $? -ne 0  ; then
2309                                 user_path=$user_path:$t_bindir
2310                                 AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
2311                         fi
2312                 fi
2313         fi ]
2314 )
2315 if test "x$external_path_file" != "x/etc/login.conf" ; then
2316         AC_DEFINE_UNQUOTED(USER_PATH, "$user_path")
2317         AC_SUBST(user_path)
2318 fi
2319
2320 # Set superuser path separately to user path
2321 AC_ARG_WITH(superuser-path,
2322         [  --with-superuser-path=  Specify different path for super-user],
2323         [
2324                 if test "x$withval" != "xno" ; then
2325                         AC_DEFINE_UNQUOTED(SUPERUSER_PATH, "$withval")
2326                         superuser_path=$withval
2327                 fi
2328         ]
2329 )
2330
2331
2332 AC_MSG_CHECKING([if we need to convert IPv4 in IPv6-mapped addresses])
2333 IPV4_IN6_HACK_MSG="no"
2334 AC_ARG_WITH(4in6,
2335         [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
2336         [
2337                 if test "x$withval" != "xno" ; then
2338                         AC_MSG_RESULT(yes)
2339                         AC_DEFINE(IPV4_IN_IPV6)
2340                         IPV4_IN6_HACK_MSG="yes"
2341                 else
2342                         AC_MSG_RESULT(no)
2343                 fi
2344         ],[
2345                 if test "x$inet6_default_4in6" = "xyes"; then
2346                         AC_MSG_RESULT([yes (default)])
2347                         AC_DEFINE(IPV4_IN_IPV6)
2348                         IPV4_IN6_HACK_MSG="yes"
2349                 else
2350                         AC_MSG_RESULT([no (default)])
2351                 fi
2352         ]
2353 )
2354
2355 # Whether to enable BSD auth support
2356 BSD_AUTH_MSG=no
2357 AC_ARG_WITH(bsd-auth,
2358         [  --with-bsd-auth         Enable BSD auth support],
2359         [
2360                 if test "x$withval" != "xno" ; then
2361                         AC_DEFINE(BSD_AUTH)
2362                         BSD_AUTH_MSG=yes
2363                 fi
2364         ]
2365 )
2366
2367 # Where to place sshd.pid
2368 piddir=/var/run
2369 # make sure the directory exists
2370 if test ! -d $piddir ; then
2371         piddir=`eval echo ${sysconfdir}`
2372         case $piddir in
2373                 NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
2374         esac
2375 fi
2376
2377 AC_ARG_WITH(pid-dir,
2378         [  --with-pid-dir=PATH     Specify location of ssh.pid file],
2379         [
2380                 if test "x$withval" != "xno" ; then
2381                         piddir=$withval
2382                         if test ! -d $piddir ; then
2383                         AC_MSG_WARN([** no $piddir directory on this system **])
2384                         fi
2385                 fi
2386         ]
2387 )
2388
2389 AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
2390 AC_SUBST(piddir)
2391
2392 dnl allow user to disable some login recording features
2393 AC_ARG_ENABLE(lastlog,
2394         [  --disable-lastlog       disable use of lastlog even if detected [no]],
2395         [
2396                 if test "x$enableval" = "xno" ; then
2397                         AC_DEFINE(DISABLE_LASTLOG)
2398                 fi
2399         ]
2400 )
2401 AC_ARG_ENABLE(utmp,
2402         [  --disable-utmp          disable use of utmp even if detected [no]],
2403         [
2404                 if test "x$enableval" = "xno" ; then
2405                         AC_DEFINE(DISABLE_UTMP)
2406                 fi
2407         ]
2408 )
2409 AC_ARG_ENABLE(utmpx,
2410         [  --disable-utmpx         disable use of utmpx even if detected [no]],
2411         [
2412                 if test "x$enableval" = "xno" ; then
2413                         AC_DEFINE(DISABLE_UTMPX)
2414                 fi
2415         ]
2416 )
2417 AC_ARG_ENABLE(wtmp,
2418         [  --disable-wtmp          disable use of wtmp even if detected [no]],
2419         [
2420                 if test "x$enableval" = "xno" ; then
2421                         AC_DEFINE(DISABLE_WTMP)
2422                 fi
2423         ]
2424 )
2425 AC_ARG_ENABLE(wtmpx,
2426         [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
2427         [
2428                 if test "x$enableval" = "xno" ; then
2429                         AC_DEFINE(DISABLE_WTMPX)
2430                 fi
2431         ]
2432 )
2433 AC_ARG_ENABLE(libutil,
2434         [  --disable-libutil       disable use of libutil (login() etc.) [no]],
2435         [
2436                 if test "x$enableval" = "xno" ; then
2437                         AC_DEFINE(DISABLE_LOGIN)
2438                 fi
2439         ]
2440 )
2441 AC_ARG_ENABLE(pututline,
2442         [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
2443         [
2444                 if test "x$enableval" = "xno" ; then
2445                         AC_DEFINE(DISABLE_PUTUTLINE)
2446                 fi
2447         ]
2448 )
2449 AC_ARG_ENABLE(pututxline,
2450         [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
2451         [
2452                 if test "x$enableval" = "xno" ; then
2453                         AC_DEFINE(DISABLE_PUTUTXLINE)
2454                 fi
2455         ]
2456 )
2457 AC_ARG_WITH(lastlog,
2458   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
2459         [
2460                 if test "x$withval" = "xno" ; then
2461                         AC_DEFINE(DISABLE_LASTLOG)
2462                 else
2463                         conf_lastlog_location=$withval
2464                 fi
2465         ]
2466 )
2467
2468 dnl lastlog, [uw]tmpx? detection
2469 dnl  NOTE: set the paths in the platform section to avoid the
2470 dnl   need for command-line parameters
2471 dnl lastlog and [uw]tmp are subject to a file search if all else fails
2472
2473 dnl lastlog detection
2474 dnl  NOTE: the code itself will detect if lastlog is a directory
2475 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
2476 AC_TRY_COMPILE([
2477 #include <sys/types.h>
2478 #include <utmp.h>
2479 #ifdef HAVE_LASTLOG_H
2480 #  include <lastlog.h>
2481 #endif
2482 #ifdef HAVE_PATHS_H
2483 #  include <paths.h>
2484 #endif
2485 #ifdef HAVE_LOGIN_H
2486 # include <login.h>
2487 #endif
2488         ],
2489         [ char *lastlog = LASTLOG_FILE; ],
2490         [ AC_MSG_RESULT(yes) ],
2491         [
2492                 AC_MSG_RESULT(no)
2493                 AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
2494                 AC_TRY_COMPILE([
2495 #include <sys/types.h>
2496 #include <utmp.h>
2497 #ifdef HAVE_LASTLOG_H
2498 #  include <lastlog.h>
2499 #endif
2500 #ifdef HAVE_PATHS_H
2501 #  include <paths.h>
2502 #endif
2503                 ],
2504                 [ char *lastlog = _PATH_LASTLOG; ],
2505                 [ AC_MSG_RESULT(yes) ],
2506                 [
2507                         AC_MSG_RESULT(no)
2508                         system_lastlog_path=no
2509                 ])
2510         ]
2511 )
2512
2513 if test -z "$conf_lastlog_location"; then
2514         if test x"$system_lastlog_path" = x"no" ; then
2515                 for f in /var/log/lastlog /usr/adm/lastlog /var/adm/lastlog /etc/security/lastlog ; do
2516                                 if (test -d "$f" || test -f "$f") ; then
2517                                         conf_lastlog_location=$f
2518                                 fi
2519                 done
2520                 if test -z "$conf_lastlog_location"; then
2521                         AC_MSG_WARN([** Cannot find lastlog **])
2522                         dnl Don't define DISABLE_LASTLOG - that means we don't try wtmp/wtmpx
2523                 fi
2524         fi
2525 fi
2526
2527 if test -n "$conf_lastlog_location"; then
2528         AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location")
2529 fi
2530
2531 dnl utmp detection
2532 AC_MSG_CHECKING([if your system defines UTMP_FILE])
2533 AC_TRY_COMPILE([
2534 #include <sys/types.h>
2535 #include <utmp.h>
2536 #ifdef HAVE_PATHS_H
2537 #  include <paths.h>
2538 #endif
2539         ],
2540         [ char *utmp = UTMP_FILE; ],
2541         [ AC_MSG_RESULT(yes) ],
2542         [ AC_MSG_RESULT(no)
2543           system_utmp_path=no ]
2544 )
2545 if test -z "$conf_utmp_location"; then
2546         if test x"$system_utmp_path" = x"no" ; then
2547                 for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
2548                         if test -f $f ; then
2549                                 conf_utmp_location=$f
2550                         fi
2551                 done
2552                 if test -z "$conf_utmp_location"; then
2553                         AC_DEFINE(DISABLE_UTMP)
2554                 fi
2555         fi
2556 fi
2557 if test -n "$conf_utmp_location"; then
2558         AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location")
2559 fi
2560
2561 dnl wtmp detection
2562 AC_MSG_CHECKING([if your system defines WTMP_FILE])
2563 AC_TRY_COMPILE([
2564 #include <sys/types.h>
2565 #include <utmp.h>
2566 #ifdef HAVE_PATHS_H
2567 #  include <paths.h>
2568 #endif
2569         ],
2570         [ char *wtmp = WTMP_FILE; ],
2571         [ AC_MSG_RESULT(yes) ],
2572         [ AC_MSG_RESULT(no)
2573           system_wtmp_path=no ]
2574 )
2575 if test -z "$conf_wtmp_location"; then
2576         if test x"$system_wtmp_path" = x"no" ; then
2577                 for f in /usr/adm/wtmp /var/log/wtmp; do
2578                         if test -f $f ; then
2579                                 conf_wtmp_location=$f
2580                         fi
2581                 done
2582                 if test -z "$conf_wtmp_location"; then
2583                         AC_DEFINE(DISABLE_WTMP)
2584                 fi
2585         fi
2586 fi
2587 if test -n "$conf_wtmp_location"; then
2588         AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location")
2589 fi
2590
2591
2592 dnl utmpx detection - I don't know any system so perverse as to require
2593 dnl  utmpx, but not define UTMPX_FILE (ditto wtmpx.) No doubt it's out
2594 dnl  there, though.
2595 AC_MSG_CHECKING([if your system defines UTMPX_FILE])
2596 AC_TRY_COMPILE([
2597 #include <sys/types.h>
2598 #include <utmp.h>
2599 #ifdef HAVE_UTMPX_H
2600 #include <utmpx.h>
2601 #endif
2602 #ifdef HAVE_PATHS_H
2603 #  include <paths.h>
2604 #endif
2605         ],
2606         [ char *utmpx = UTMPX_FILE; ],
2607         [ AC_MSG_RESULT(yes) ],
2608         [ AC_MSG_RESULT(no)
2609           system_utmpx_path=no ]
2610 )
2611 if test -z "$conf_utmpx_location"; then
2612         if test x"$system_utmpx_path" = x"no" ; then
2613                 AC_DEFINE(DISABLE_UTMPX)
2614         fi
2615 else
2616         AC_DEFINE_UNQUOTED(CONF_UTMPX_FILE, "$conf_utmpx_location")
2617 fi
2618
2619 dnl wtmpx detection
2620 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
2621 AC_TRY_COMPILE([
2622 #include <sys/types.h>
2623 #include <utmp.h>
2624 #ifdef HAVE_UTMPX_H
2625 #include <utmpx.h>
2626 #endif
2627 #ifdef HAVE_PATHS_H
2628 #  include <paths.h>
2629 #endif
2630         ],
2631         [ char *wtmpx = WTMPX_FILE; ],
2632         [ AC_MSG_RESULT(yes) ],
2633         [ AC_MSG_RESULT(no)
2634           system_wtmpx_path=no ]
2635 )
2636 if test -z "$conf_wtmpx_location"; then
2637         if test x"$system_wtmpx_path" = x"no" ; then
2638                 AC_DEFINE(DISABLE_WTMPX)
2639         fi
2640 else
2641         AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location")
2642 fi
2643
2644
2645 if test ! -z "$blibpath" ; then
2646         LDFLAGS="$LDFLAGS $blibflags$blibpath"
2647         AC_MSG_WARN([Please check and edit blibpath in LDFLAGS in Makefile])
2648 fi
2649
2650 dnl remove pam and dl because they are in $LIBPAM
2651 if test "$PAM_MSG" = yes ; then
2652         LIBS=`echo $LIBS | sed 's/-lpam //'`
2653 fi
2654 if test "$ac_cv_lib_pam_pam_set_item" = yes ; then
2655         LIBS=`echo $LIBS | sed 's/-ldl //'`
2656 fi
2657
2658 AC_EXEEXT
2659 AC_CONFIG_FILES([Makefile openbsd-compat/Makefile scard/Makefile ssh_prng_cmds])
2660 AC_OUTPUT
2661
2662 # Print summary of options
2663
2664 # Someone please show me a better way :)
2665 A=`eval echo ${prefix}` ; A=`eval echo ${A}`
2666 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
2667 C=`eval echo ${sbindir}` ; C=`eval echo ${C}`
2668 D=`eval echo ${sysconfdir}` ; D=`eval echo ${D}`
2669 E=`eval echo ${libexecdir}/ssh-askpass` ; E=`eval echo ${E}`
2670 F=`eval echo ${mandir}/${mansubdir}X` ; F=`eval echo ${F}`
2671 G=`eval echo ${piddir}` ; G=`eval echo ${G}`
2672 H=`eval echo ${PRIVSEP_PATH}` ; H=`eval echo ${H}`
2673 I=`eval echo ${user_path}` ; I=`eval echo ${I}`
2674 J=`eval echo ${superuser_path}` ; J=`eval echo ${J}`
2675
2676 echo ""
2677 echo "OpenSSH has been configured with the following options:"
2678 echo "                     User binaries: $B"
2679 echo "                   System binaries: $C"
2680 echo "               Configuration files: $D"
2681 echo "                   Askpass program: $E"
2682 echo "                      Manual pages: $F"
2683 echo "                          PID file: $G"
2684 echo "  Privilege separation chroot path: $H"
2685 if test "x$external_path_file" = "x/etc/login.conf" ; then
2686 echo "   At runtime, sshd will use the path defined in $external_path_file"
2687 echo "   Make sure the path to scp is present, otherwise scp will not work"
2688 else
2689 echo "            sshd default user PATH: $I"
2690         if test ! -z "$external_path_file"; then
2691 echo "   (If PATH is set in $external_path_file it will be used instead. If"
2692 echo "   used, ensure the path to scp is present, otherwise scp will not work.)"
2693         fi
2694 fi
2695 if test ! -z "$superuser_path" ; then
2696 echo "          sshd superuser user PATH: $J"
2697 fi
2698 echo "                    Manpage format: $MANTYPE"
2699 echo "                       DNS support: $DNS_MSG"
2700 echo "                       PAM support: $PAM_MSG"
2701 echo "                 KerberosV support: $KRB5_MSG"
2702 echo "                 Smartcard support: $SCARD_MSG"
2703 echo "                     S/KEY support: $SKEY_MSG"
2704 echo "              TCP Wrappers support: $TCPW_MSG"
2705 echo "              MD5 password support: $MD5_MSG"
2706 echo "       IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
2707 echo "           Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
2708 echo "                  BSD Auth support: $BSD_AUTH_MSG"
2709 echo "              Random number source: $RAND_MSG"
2710 if test ! -z "$USE_RAND_HELPER" ; then
2711 echo "     ssh-rand-helper collects from: $RAND_HELPER_MSG"
2712 fi
2713
2714 echo ""
2715
2716 echo "              Host: ${host}"
2717 echo "          Compiler: ${CC}"
2718 echo "    Compiler flags: ${CFLAGS}"
2719 echo "Preprocessor flags: ${CPPFLAGS}"
2720 echo "      Linker flags: ${LDFLAGS}"
2721 echo "         Libraries: ${LIBWRAP} ${LIBPAM} ${LIBS}"
2722
2723 echo ""
2724
2725 if test "x$PAM_MSG" = "xyes" ; then
2726         echo "PAM is enabled. You may need to install a PAM control file "
2727         echo "for sshd, otherwise password authentication may fail. "
2728         echo "Example PAM control files can be found in the contrib/ "
2729         echo "subdirectory"
2730         echo ""
2731 fi
2732
2733 if test ! -z "$RAND_HELPER_CMDHASH" ; then
2734         echo "WARNING: you are using the builtin random number collection "
2735         echo "service. Please read WARNING.RNG and request that your OS "
2736         echo "vendor includes kernel-based random number collection in "
2737         echo "future versions of your OS."
2738         echo ""
2739 fi
2740