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_CPP
  13 AC_PROG_RANLIB
  14 AC_PROG_INSTALL
  15 AC_PATH_PROG(AR, ar)
  16 AC_PATH_PROGS(PERL, perl5 perl)
  17 AC_PATH_PROG(SED, sed)
  18 AC_SUBST(PERL)
  19 AC_PATH_PROG(ENT, ent)
  20 AC_SUBST(ENT)
  21 AC_PATH_PROG(TEST_MINUS_S_SH, bash)
  22 AC_PATH_PROG(TEST_MINUS_S_SH, ksh)
  23 AC_PATH_PROG(TEST_MINUS_S_SH, sh)
  24 AC_PATH_PROG(SH, sh)
  25
  26 # System features
  27 AC_SYS_LARGEFILE
  28
  29 if test -z "$AR" ; then
  30         AC_MSG_ERROR([*** 'ar' missing, please install or fix your \$PATH ***])
  31 fi
  32
  33 # Use LOGIN_PROGRAM from environment if possible
  34 if test ! -z "$LOGIN_PROGRAM" ; then
  35         AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM")
  36 else
  37         # Search for login
  38         AC_PATH_PROG(LOGIN_PROGRAM_FALLBACK, login)
  39         if test ! -z "$LOGIN_PROGRAM_FALLBACK" ; then
  40                 AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM_FALLBACK")
  41         fi
  42 fi
  43
  44 if test -z "$LD" ; then
  45         LD=$CC
  46 fi
  47 AC_SUBST(LD)
  48
  49 AC_C_INLINE
  50 if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
  51         CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wno-uninitialized"
  52 fi
  53
  54 # Check for some target-specific stuff
  55 case "$host" in
  56 *-*-aix*)
  57         AFS_LIBS="-lld"
  58         CPPFLAGS="$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         AC_CHECK_FUNC(authenticate, [AC_DEFINE(WITH_AIXAUTHENTICATE)],
  79                 [AC_CHECK_LIB(s,authenticate,
  80                         [ AC_DEFINE(WITH_AIXAUTHENTICATE)
  81                                 LIBS="$LIBS -ls"
  82                         ])
  83                 ])
  84         AC_DEFINE(BROKEN_GETADDRINFO)
  85         AC_DEFINE(BROKEN_REALPATH)
  86         dnl AIX handles lastlog as part of its login message
  87         AC_DEFINE(DISABLE_LASTLOG)
  88         AC_DEFINE(LOGIN_NEEDS_UTMPX)
  89         AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
  90         ;;
  91 *-*-cygwin*)
  92         check_for_libcrypt_later=1
  93         LIBS="$LIBS /usr/lib/textmode.o"
  94         AC_DEFINE(HAVE_CYGWIN)
  95         AC_DEFINE(USE_PIPES)
  96         AC_DEFINE(DISABLE_SHADOW)
  97         AC_DEFINE(IP_TOS_IS_BROKEN)
  98         AC_DEFINE(NO_X11_UNIX_SOCKETS)
  99         AC_DEFINE(NO_IPPORT_RESERVED_CONCEPT)
 100         AC_DEFINE(DISABLE_FD_PASSING)
 101         AC_DEFINE(SETGROUPS_NOOP)
 102         ;;
 103 *-*-dgux*)
 104         AC_DEFINE(IP_TOS_IS_BROKEN)
 105         ;;
 106 *-*-darwin*)
 107         AC_MSG_CHECKING(if we have working getaddrinfo)
 108         AC_TRY_RUN([#include <mach-o/dyld.h>
 109 main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
 110                 exit(0);
 111         else
 112                 exit(1);
 113 }], [AC_MSG_RESULT(working)],
 114         [AC_MSG_RESULT(buggy)
 115         AC_DEFINE(BROKEN_GETADDRINFO)],
 116         [AC_MSG_RESULT(assume it is working)])
 117         ;;
 118 *-*-hpux10.26)
 119         if test -z "$GCC"; then
 120                 CFLAGS="$CFLAGS -Ae"
 121         fi
 122         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 123         IPADDR_IN_DISPLAY=yes
 124         AC_DEFINE(HAVE_SECUREWARE)
 125         AC_DEFINE(USE_PIPES)
 126         AC_DEFINE(LOGIN_NO_ENDOPT)
 127         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 128         AC_DEFINE(DISABLE_SHADOW)
 129         AC_DEFINE(DISABLE_UTMP)
 130         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 131         LIBS="$LIBS -lsec -lsecpw"
 132         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 133         disable_ptmx_check=yes
 134         ;;
 135 *-*-hpux10*)
 136         if test -z "$GCC"; then
 137                 CFLAGS="$CFLAGS -Ae"
 138         fi
 139         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 140         IPADDR_IN_DISPLAY=yes
 141         AC_DEFINE(USE_PIPES)
 142         AC_DEFINE(LOGIN_NO_ENDOPT)
 143         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 144         AC_DEFINE(DISABLE_SHADOW)
 145         AC_DEFINE(DISABLE_UTMP)
 146         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 147         LIBS="$LIBS -lsec"
 148         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 149         ;;
 150 *-*-hpux11*)
 151         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
 152         IPADDR_IN_DISPLAY=yes
 153         AC_DEFINE(PAM_SUN_CODEBASE)
 154         AC_DEFINE(USE_PIPES)
 155         AC_DEFINE(LOGIN_NO_ENDOPT)
 156         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 157         AC_DEFINE(DISABLE_SHADOW)
 158         AC_DEFINE(DISABLE_UTMP)
 159         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 160         LIBS="$LIBS -lsec"
 161         AC_CHECK_LIB(xnet, t_error, ,AC_MSG_ERROR([*** -lxnet needed on HP-UX - check config.log ***]))
 162         ;;
 163 *-*-irix5*)
 164         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 165         LDFLAGS="$LDFLAGS"
 166         PATH="$PATH:/usr/etc"
 167         AC_DEFINE(BROKEN_INET_NTOA)
 168         AC_DEFINE(WITH_ABBREV_NO_TTY)
 169         ;;
 170 *-*-irix6*)
 171         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 172         LDFLAGS="$LDFLAGS"
 173         PATH="$PATH:/usr/etc"
 174         AC_DEFINE(WITH_IRIX_ARRAY)
 175         AC_DEFINE(WITH_IRIX_PROJECT)
 176         AC_DEFINE(WITH_IRIX_AUDIT)
 177         AC_CHECK_FUNC(jlimit_startjob, [AC_DEFINE(WITH_IRIX_JOBS)])
 178         AC_DEFINE(BROKEN_INET_NTOA)
 179         AC_DEFINE(WITH_ABBREV_NO_TTY)
 180         ;;
 181 *-*-linux*)
 182         no_dev_ptmx=1
 183         check_for_libcrypt_later=1
 184         AC_DEFINE(DONT_TRY_OTHER_AF)
 185         AC_DEFINE(PAM_TTY_KLUDGE)
 186         AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)
 187         inet6_default_4in6=yes
 188         # openpty can be in libutil, needed for controlling tty test
 189         AC_SEARCH_LIBS(openpty, util)
 190         # make sure that openpty does not reacquire controlling terminal
 191         AC_MSG_CHECKING(if openpty correctly handles controlling tty)
 192         AC_TRY_RUN(
 193                 [
 194 #include <stdio.h>
 195 #include <sys/fcntl.h>
 196 #include <sys/types.h>
 197 #include <sys/wait.h>
 198
 199 int
 200 main()
 201 {
 202         pid_t pid;
 203         int fd, ptyfd, ttyfd, status;
 204
 205         pid = fork();
 206         if (pid < 0) {          /* failed */
 207                 exit(1);
 208         } else if (pid > 0) {   /* parent */
 209                 waitpid(pid, &status, 0);
 210                 if (WIFEXITED(status))
 211                         exit(WEXITSTATUS(status));
 212                 else
 213                         exit(2);
 214         } else {                /* child */
 215                 close(0); close(1); close(2);
 216                 setsid();
 217                 openpty(&ptyfd, &ttyfd, NULL, NULL, NULL);
 218                 fd = open("/dev/tty", O_RDWR | O_NOCTTY);
 219                 if (fd >= 0)
 220                         exit(3);        /* Acquired ctty: broken */
 221                 else
 222                         exit(0);        /* Did not acquire ctty: OK */
 223         }
 224 }
 225                 ],
 226                 [
 227                         AC_MSG_RESULT(yes)
 228                 ],
 229                 [
 230                         AC_MSG_RESULT(no)
 231                         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 232                 ]
 233         )
 234         case `uname -r` in
 235         1.*|2.0.*)
 236                 AC_DEFINE(BROKEN_CMSG_TYPE)
 237                 ;;
 238         esac
 239         ;;
 240 mips-sony-bsd|mips-sony-newsos4)
 241         AC_DEFINE(HAVE_NEWS4)
 242         SONY=1
 243         ;;
 244 *-*-netbsd*)
 245         check_for_libcrypt_before=1
 246         need_dash_r=1
 247         ;;
 248 *-*-freebsd*)
 249         check_for_libcrypt_later=1
 250         ;;
 251 *-next-*)
 252         conf_lastlog_location="/usr/adm/lastlog"
 253         conf_utmp_location=/etc/utmp
 254         conf_wtmp_location=/usr/adm/wtmp
 255         MAIL=/usr/spool/mail
 256         AC_DEFINE(HAVE_NEXT)
 257         AC_DEFINE(BROKEN_REALPATH)
 258         AC_DEFINE(USE_PIPES)
 259         AC_DEFINE(BROKEN_SAVED_UIDS)
 260         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 261         CFLAGS="$CFLAGS"
 262         ;;
 263 *-*-solaris*)
 264         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 265         LDFLAGS="$LDFLAGS -L/usr/local/lib -R/usr/local/lib"
 266         need_dash_r=1
 267         AC_DEFINE(PAM_SUN_CODEBASE)
 268         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 269         AC_DEFINE(LOGIN_NEEDS_TERM)
 270         AC_DEFINE(PAM_TTY_KLUDGE)
 271         # Pushing STREAMS modules will cause sshd to acquire a controlling tty.
 272         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 273         # hardwire lastlog location (can't detect it on some versions)
 274         conf_lastlog_location="/var/adm/lastlog"
 275         AC_MSG_CHECKING(for obsolete utmp and wtmp in solaris2.x)
 276         sol2ver=`echo "$host"| sed -e 's/.*[[0-9]]\.//'`
 277         if test "$sol2ver" -ge 8; then
 278                 AC_MSG_RESULT(yes)
 279                 AC_DEFINE(DISABLE_UTMP)
 280                 AC_DEFINE(DISABLE_WTMP)
 281         else
 282                 AC_MSG_RESULT(no)
 283         fi
 284         ;;
 285 *-*-sunos4*)
 286         CPPFLAGS="$CPPFLAGS -DSUNOS4"
 287         AC_CHECK_FUNCS(getpwanam)
 288         AC_DEFINE(PAM_SUN_CODEBASE)
 289         conf_utmp_location=/etc/utmp
 290         conf_wtmp_location=/var/adm/wtmp
 291         conf_lastlog_location=/var/adm/lastlog
 292         AC_DEFINE(USE_PIPES)
 293         ;;
 294 *-ncr-sysv*)
 295         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 296         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 297         LIBS="$LIBS -lc89"
 298         AC_DEFINE(USE_PIPES)
 299         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 300         ;;
 301 *-sni-sysv*)
 302         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 303         # /usr/ucblib MUST NOT be searched on ReliantUNIX
 304         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 305         IPADDR_IN_DISPLAY=yes
 306         AC_DEFINE(USE_PIPES)
 307         AC_DEFINE(IP_TOS_IS_BROKEN)
 308         AC_DEFINE(SSHD_ACQUIRES_CTTY)
 309         # /usr/ucblib/libucb.a no longer needed on ReliantUNIX
 310         # Attention: always take care to bind libsocket and libnsl before libc,
 311         # otherwise you will find lots of "SIOCGPGRP errno 22" on syslog
 312         ;;
 313 *-*-sysv4.2*)
 314         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 315         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 316         AC_DEFINE(USE_PIPES)
 317         ;;
 318 *-*-sysv5*)
 319         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 320         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 321         AC_DEFINE(USE_PIPES)
 322         ;;
 323 *-*-sysv*)
 324         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 325         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 326         ;;
 327 *-*-sco3.2v4*)
 328         CPPFLAGS="$CPPFLAGS -Dftruncate=chsize -I/usr/local/include"
 329         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 330         LIBS="$LIBS -los -lprot -lx -ltinfo -lm"
 331         RANLIB=true
 332         no_dev_ptmx=1
 333         AC_DEFINE(BROKEN_SYS_TERMIO_H)
 334         AC_DEFINE(USE_PIPES)
 335         AC_DEFINE(HAVE_SECUREWARE)
 336         AC_DEFINE(DISABLE_SHADOW)
 337         AC_DEFINE(BROKEN_SAVED_UIDS)
 338         AC_CHECK_FUNCS(getluid setluid)
 339         MANTYPE=man
 340         do_sco3_extra_lib_check=yes
 341         ;;
 342 *-*-sco3.2v5*)
 343         if test -z "$GCC"; then
 344                 CFLAGS="$CFLAGS -belf"
 345         fi
 346         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 347         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 348         LIBS="$LIBS -lprot -lx -ltinfo -lm"
 349         no_dev_ptmx=1
 350         AC_DEFINE(USE_PIPES)
 351         AC_DEFINE(HAVE_SECUREWARE)
 352         AC_DEFINE(DISABLE_SHADOW)
 353         AC_DEFINE(DISABLE_FD_PASSING)
 354         AC_CHECK_FUNCS(getluid setluid)
 355         MANTYPE=man
 356         ;;
 357 *-*-unicosmk*)
 358         AC_DEFINE(USE_PIPES)
 359         AC_DEFINE(DISABLE_FD_PASSING)
 360         LDFLAGS="$LDFLAGS"
 361         LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
 362         MANTYPE=cat
 363         ;;
 364 *-*-unicos*)
 365         AC_DEFINE(USE_PIPES)
 366         AC_DEFINE(DISABLE_FD_PASSING)
 367         AC_DEFINE(NO_SSH_LASTLOG)
 368         LDFLAGS="$LDFLAGS -Wl,-Dmsglevel=334:fatal"
 369         LIBS="$LIBS -lgen -lrsc -lshare -luex -lacm"
 370         MANTYPE=cat
 371         ;;
 372 *-dec-osf*)
 373         AC_MSG_CHECKING(for Digital Unix SIA)
 374         no_osfsia=""
 375         AC_ARG_WITH(osfsia,
 376                 [  --with-osfsia           Enable Digital Unix SIA],
 377                 [
 378                         if test "x$withval" = "xno" ; then
 379                                 AC_MSG_RESULT(disabled)
 380                                 no_osfsia=1
 381                         fi
 382                 ],
 383         )
 384         if test -z "$no_osfsia" ; then
 385                 if test -f /etc/sia/matrix.conf; then
 386                         AC_MSG_RESULT(yes)
 387                         AC_DEFINE(HAVE_OSF_SIA)
 388                         AC_DEFINE(DISABLE_LOGIN)
 389                         AC_DEFINE(DISABLE_FD_PASSING)
 390                         LIBS="$LIBS -lsecurity -ldb -lm -laud"
 391                 else
 392                         AC_MSG_RESULT(no)
 393                 fi
 394         fi
 395         AC_DEFINE(DISABLE_FD_PASSING)
 396         ;;
 397
 398 *-*-nto-qnx)
 399         AC_DEFINE(USE_PIPES)
 400         AC_DEFINE(NO_X11_UNIX_SOCKETS)
 401         AC_DEFINE(MISSING_NFDBITS)
 402         AC_DEFINE(MISSING_HOWMANY)
 403         AC_DEFINE(MISSING_FD_MASK)
 404         ;;
 405 esac
 406
 407 # Allow user to specify flags
 408 AC_ARG_WITH(cflags,
 409         [  --with-cflags           Specify additional flags to pass to compiler],
 410         [
 411                 if test "x$withval" != "xno" ; then
 412                         CFLAGS="$CFLAGS $withval"
 413                 fi
 414         ]
 415 )
 416 AC_ARG_WITH(cppflags,
 417         [  --with-cppflags         Specify additional flags to pass to preprocessor] ,
 418         [
 419                 if test "x$withval" != "xno"; then
 420                         CPPFLAGS="$CPPFLAGS $withval"
 421                 fi
 422         ]
 423 )
 424 AC_ARG_WITH(ldflags,
 425         [  --with-ldflags          Specify additional flags to pass to linker],
 426         [
 427                 if test "x$withval" != "xno" ; then
 428                         LDFLAGS="$LDFLAGS $withval"
 429                 fi
 430         ]
 431 )
 432 AC_ARG_WITH(libs,
 433         [  --with-libs             Specify additional libraries to link with],
 434         [
 435                 if test "x$withval" != "xno" ; then
 436                         LIBS="$LIBS $withval"
 437                 fi
 438         ]
 439 )
 440
 441 AC_MSG_CHECKING(compiler and flags for sanity)
 442 AC_TRY_RUN([
 443 #include <stdio.h>
 444 int main(){exit(0);}
 445         ],
 446         [       AC_MSG_RESULT(yes) ],
 447         [
 448                 AC_MSG_RESULT(no)
 449                 AC_MSG_ERROR([*** compiler cannot create working executables, check config.log ***])
 450         ]
 451 )
 452
 453 # Checks for header files.
 454 AC_CHECK_HEADERS(bstring.h crypt.h endian.h features.h floatingpoint.h \
 455         getopt.h glob.h ia.h lastlog.h libgen.h limits.h login.h \
 456         login_cap.h maillock.h netdb.h netgroup.h \
 457         netinet/in_systm.h paths.h pty.h readpassphrase.h \
 458         rpc/types.h security/pam_appl.h shadow.h stddef.h stdint.h \
 459         strings.h sys/strtio.h sys/bitypes.h sys/bsdtty.h sys/cdefs.h \
 460         sys/mman.h sys/pstat.h sys/select.h sys/stat.h \
 461         sys/stropts.h sys/sysmacros.h sys/time.h sys/timers.h \
 462         sys/un.h time.h tmpdir.h ttyent.h usersec.h \
 463         util.h utime.h utmp.h utmpx.h)
 464
 465 # Checks for libraries.
 466 AC_CHECK_FUNC(yp_match, , AC_CHECK_LIB(nsl, yp_match))
 467 AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
 468
 469 dnl SCO OS3 needs this for libwrap
 470 if test "x$with_tcp_wrappers" != "xno" ; then
 471     if test "x$do_sco3_extra_lib_check" = "xyes" ; then
 472         AC_CHECK_LIB(rpc, innetgr, LIBS="-lrpc -lyp -lrpc $LIBS" , , -lyp -lrpc)
 473     fi
 474 fi
 475
 476 AC_CHECK_FUNC(getspnam, ,
 477         AC_CHECK_LIB(gen, getspnam, LIBS="$LIBS -lgen"))
 478
 479 AC_ARG_WITH(rpath,
 480         [  --without-rpath         Disable auto-added -R linker paths],
 481         [
 482                 if test "x$withval" = "xno" ; then
 483                         need_dash_r=""
 484                 fi
 485                 if test "x$withval" = "xyes" ; then
 486                         need_dash_r=1
 487                 fi
 488         ]
 489 )
 490
 491 dnl zlib is required
 492 AC_ARG_WITH(zlib,
 493         [  --with-zlib=PATH        Use zlib in PATH],
 494         [
 495                 if test "x$withval" = "xno" ; then
 496                         AC_MSG_ERROR([*** zlib is required ***])
 497                 fi
 498                 if test -d "$withval/lib"; then
 499                         if test -n "${need_dash_r}"; then
 500                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 501                         else
 502                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 503                         fi
 504                 else
 505                         if test -n "${need_dash_r}"; then
 506                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 507                         else
 508                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 509                         fi
 510                 fi
 511                 if test -d "$withval/include"; then
 512                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 513                 else
 514                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 515                 fi
 516         ]
 517 )
 518
 519 AC_CHECK_LIB(z, deflate, ,AC_MSG_ERROR([*** zlib missing - please install first or check config.log ***]))
 520
 521 dnl UnixWare 2.x
 522 AC_CHECK_FUNC(strcasecmp,
 523         [], [ AC_CHECK_LIB(resolv, strcasecmp, LIBS="$LIBS -lresolv") ]
 524 )
 525 AC_CHECK_FUNC(utimes,
 526         [], [ AC_CHECK_LIB(c89, utimes, [AC_DEFINE(HAVE_UTIMES)
 527                                         LIBS="$LIBS -lc89"]) ]
 528 )
 529
 530 dnl    Checks for libutil functions
 531 AC_CHECK_HEADERS(libutil.h)
 532 AC_SEARCH_LIBS(login, util bsd, [AC_DEFINE(HAVE_LOGIN)])
 533 AC_CHECK_FUNCS(logout updwtmp logwtmp)
 534
 535 AC_FUNC_STRFTIME
 536
 537 # Check for ALTDIRFUNC glob() extension
 538 AC_MSG_CHECKING(for GLOB_ALTDIRFUNC support)
 539 AC_EGREP_CPP(FOUNDIT,
 540         [
 541                 #include <glob.h>
 542                 #ifdef GLOB_ALTDIRFUNC
 543                 FOUNDIT
 544                 #endif
 545         ],
 546         [
 547                 AC_DEFINE(GLOB_HAS_ALTDIRFUNC)
 548                 AC_MSG_RESULT(yes)
 549         ],
 550         [
 551                 AC_MSG_RESULT(no)
 552         ]
 553 )
 554
 555 # Check for g.gl_matchc glob() extension
 556 AC_MSG_CHECKING(for gl_matchc field in glob_t)
 557 AC_EGREP_CPP(FOUNDIT,
 558         [
 559                 #include <glob.h>
 560                 int main(void){glob_t g; g.gl_matchc = 1;}
 561         ],
 562         [
 563                 AC_DEFINE(GLOB_HAS_GL_MATCHC)
 564                 AC_MSG_RESULT(yes)
 565         ],
 566         [
 567                 AC_MSG_RESULT(no)
 568         ]
 569 )
 570
 571 AC_MSG_CHECKING([whether struct dirent allocates space for d_name])
 572 AC_TRY_RUN(
 573         [
 574 #include <sys/types.h>
 575 #include <dirent.h>
 576 int main(void){struct dirent d;exit(sizeof(d.d_name)<=sizeof(char));}
 577         ],
 578         [AC_MSG_RESULT(yes)],
 579         [
 580                 AC_MSG_RESULT(no)
 581                 AC_DEFINE(BROKEN_ONE_BYTE_DIRENT_D_NAME)
 582         ]
 583 )
 584
 585 # Check whether user wants S/Key support
 586 SKEY_MSG="no"
 587 AC_ARG_WITH(skey,
 588         [  --with-skey[[=PATH]]      Enable S/Key support
 589                             (optionally in PATH)],
 590         [
 591                 if test "x$withval" != "xno" ; then
 592
 593                         if test "x$withval" != "xyes" ; then
 594                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
 595                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
 596                         fi
 597
 598                         AC_DEFINE(SKEY)
 599                         LIBS="-lskey $LIBS"
 600                         SKEY_MSG="yes"
 601
 602                         AC_MSG_CHECKING([for s/key support])
 603                         AC_TRY_RUN(
 604                                 [
 605 #include <stdio.h>
 606 #include <skey.h>
 607 int main() { char *ff = skey_keyinfo(""); ff=""; exit(0); }
 608                                 ],
 609                                 [AC_MSG_RESULT(yes)],
 610                                 [
 611                                         AC_MSG_RESULT(no)
 612                                         AC_MSG_ERROR([** Incomplete or missing s/key libraries.])
 613                                 ])
 614                 fi
 615         ]
 616 )
 617
 618 # Check whether user wants TCP wrappers support
 619 TCPW_MSG="no"
 620 AC_ARG_WITH(tcp-wrappers,
 621         [  --with-tcp-wrappers[[=PATH]]      Enable tcpwrappers support
 622                             (optionally in PATH)],
 623         [
 624                 if test "x$withval" != "xno" ; then
 625                         saved_LIBS="$LIBS"
 626                         saved_LDFLAGS="$LDFLAGS"
 627                         saved_CPPFLAGS="$CPPFLAGS"
 628                         if test -n "${withval}" -a "${withval}" != "yes"; then
 629                                 if test -d "${withval}/lib"; then
 630                                         if test -n "${need_dash_r}"; then
 631                                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 632                                         else
 633                                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 634                                         fi
 635                                 else
 636                                         if test -n "${need_dash_r}"; then
 637                                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 638                                         else
 639                                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 640                                         fi
 641                                 fi
 642                                 if test -d "${withval}/include"; then
 643                                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 644                                 else
 645                                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 646                                 fi
 647                         fi
 648                         LIBWRAP="-lwrap"
 649                         LIBS="$LIBWRAP $LIBS"
 650                         AC_MSG_CHECKING(for libwrap)
 651                         AC_TRY_LINK(
 652                                 [
 653 #include <tcpd.h>
 654                                         int deny_severity = 0, allow_severity = 0;
 655                                 ],
 656                                 [hosts_access(0);],
 657                                 [
 658                                         AC_MSG_RESULT(yes)
 659                                         AC_DEFINE(LIBWRAP)
 660                                         AC_SUBST(LIBWRAP)
 661                                         TCPW_MSG="yes"
 662                                 ],
 663                                 [
 664                                         AC_MSG_ERROR([*** libwrap missing])
 665                                 ]
 666                         )
 667                         LIBS="$saved_LIBS"
 668                 fi
 669         ]
 670 )
 671
 672 dnl    Checks for library functions. Please keep in alphabetical order
 673 AC_CHECK_FUNCS(\
 674         arc4random __b64_ntop b64_ntop __b64_pton b64_pton basename \
 675         bcopy bindresvport_sa clock fchmod fchown freeaddrinfo futimes \
 676         gai_strerror getaddrinfo getcwd getgrouplist getnameinfo getopt \
 677         getpeereid _getpty getrlimit getrusage getttyent glob inet_aton \
 678         inet_ntoa inet_ntop innetgr login_getcapbool md5_crypt memmove \
 679         mkdtemp mmap ngetaddrinfo nsleep ogetaddrinfo openlog_r openpty \
 680         pstat readpassphrase realpath recvmsg rresvport_af sendmsg \
 681         setdtablesize setegid setenv seteuid setgroups setlogin setpcred \
 682         setproctitle setregid setresgid setresuid setreuid setrlimit \
 683         setsid setvbuf sigaction sigvec snprintf socketpair strerror \
 684         strlcat strlcpy strmode strnvis sysconf tcgetpgrp truncate utimes \
 685         vhangup vsnprintf waitpid \
 686 )
 687
 688 AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP))
 689 AC_SEARCH_LIBS(basename, gen, AC_DEFINE(HAVE_BASENAME))
 690
 691 dnl Make sure strsep prototype is defined before defining HAVE_STRSEP
 692 AC_CHECK_DECL(strsep, [AC_CHECK_FUNCS(strsep)])
 693
 694 dnl IRIX and Solaris 2.5.1 have dirname() in libgen
 695 AC_CHECK_FUNCS(dirname, [AC_CHECK_HEADERS(libgen.h)] ,[
 696         AC_CHECK_LIB(gen, dirname,[
 697                 AC_CACHE_CHECK([for broken dirname],
 698                         ac_cv_have_broken_dirname, [
 699                         save_LIBS="$LIBS"
 700                         LIBS="$LIBS -lgen"
 701                         AC_TRY_RUN(
 702                                 [
 703 #include <libgen.h>
 704 #include <string.h>
 705
 706 int main(int argc, char **argv) {
 707     char *s, buf[32];
 708
 709     strncpy(buf,"/etc", 32);
 710     s = dirname(buf);
 711     if (!s || strncmp(s, "/", 32) != 0) {
 712         exit(1);
 713     } else {
 714         exit(0);
 715     }
 716 }
 717                                 ],
 718                                 [ ac_cv_have_broken_dirname="no" ],
 719                                 [ ac_cv_have_broken_dirname="yes" ]
 720                         )
 721                         LIBS="$save_LIBS"
 722                 ])
 723                 if test "x$ac_cv_have_broken_dirname" = "xno" ; then
 724                         LIBS="$LIBS -lgen"
 725                         AC_DEFINE(HAVE_DIRNAME)
 726                         AC_CHECK_HEADERS(libgen.h)
 727                 fi
 728         ])
 729 ])
 730
 731 dnl    Checks for time functions
 732 AC_CHECK_FUNCS(gettimeofday time)
 733 dnl    Checks for utmp functions
 734 AC_CHECK_FUNCS(endutent getutent getutid getutline pututline setutent)
 735 AC_CHECK_FUNCS(utmpname)
 736 dnl    Checks for utmpx functions
 737 AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
 738 AC_CHECK_FUNCS(setutxent utmpxname)
 739
 740 AC_CHECK_FUNC(daemon,
 741         [AC_DEFINE(HAVE_DAEMON)],
 742         [AC_CHECK_LIB(bsd, daemon, [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 743 )
 744
 745 AC_CHECK_FUNC(getpagesize,
 746         [AC_DEFINE(HAVE_GETPAGESIZE)],
 747         [AC_CHECK_LIB(ucb, getpagesize, [LIBS="$LIBS -lucb"; AC_DEFINE(HAVE_GETPAGESIZE)])]
 748 )
 749
 750 # Check for broken snprintf
 751 if test "x$ac_cv_func_snprintf" = "xyes" ; then
 752         AC_MSG_CHECKING([whether snprintf correctly terminates long strings])
 753         AC_TRY_RUN(
 754                 [
 755 #include <stdio.h>
 756 int main(void){char b[5];snprintf(b,5,"123456789");exit(b[4]!='\0');}
 757                 ],
 758                 [AC_MSG_RESULT(yes)],
 759                 [
 760                         AC_MSG_RESULT(no)
 761                         AC_DEFINE(BROKEN_SNPRINTF)
 762                         AC_MSG_WARN([****** Your snprintf() function is broken, complain to your vendor])
 763                 ]
 764         )
 765 fi
 766
 767 dnl see whether mkstemp() requires XXXXXX
 768 if test "x$ac_cv_func_mkdtemp" = "xyes" ; then
 769 AC_MSG_CHECKING([for (overly) strict mkstemp])
 770 AC_TRY_RUN(
 771         [
 772 #include <stdlib.h>
 773 main() { char template[]="conftest.mkstemp-test";
 774 if (mkstemp(template) == -1)
 775         exit(1);
 776 unlink(template); exit(0);
 777 }
 778         ],
 779         [
 780                 AC_MSG_RESULT(no)
 781         ],
 782         [
 783                 AC_MSG_RESULT(yes)
 784                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 785         ],
 786         [
 787                 AC_MSG_RESULT(yes)
 788                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 789         ]
 790 )
 791 fi
 792
 793 AC_FUNC_GETPGRP
 794
 795 # Check for PAM libs
 796 PAM_MSG="no"
 797 AC_ARG_WITH(pam,
 798         [  --with-pam              Enable PAM support ],
 799         [
 800                 if test "x$withval" != "xno" ; then
 801                         if test "x$ac_cv_header_security_pam_appl_h" != "xyes" ; then
 802                                 AC_MSG_ERROR([PAM headers not found])
 803                         fi
 804
 805                         AC_CHECK_LIB(dl, dlopen, , )
 806                         AC_CHECK_LIB(pam, pam_set_item, , AC_MSG_ERROR([*** libpam missing]))
 807                         AC_CHECK_FUNCS(pam_getenvlist)
 808
 809                         disable_shadow=yes
 810                         PAM_MSG="yes"
 811
 812                         AC_DEFINE(USE_PAM)
 813                         if test $ac_cv_lib_dl_dlopen = yes; then
 814                                 LIBPAM="-lpam -ldl"
 815                         else
 816                                 LIBPAM="-lpam"
 817                         fi
 818                         AC_SUBST(LIBPAM)
 819                 fi
 820         ]
 821 )
 822
 823 # Check for older PAM
 824 if test "x$PAM_MSG" = "xyes" ; then
 825         # Check PAM strerror arguments (old PAM)
 826         AC_MSG_CHECKING([whether pam_strerror takes only one argument])
 827         AC_TRY_COMPILE(
 828                 [
 829 #include <stdlib.h>
 830 #include <security/pam_appl.h>
 831                 ],
 832                 [(void)pam_strerror((pam_handle_t *)NULL, -1);],
 833                 [AC_MSG_RESULT(no)],
 834                 [
 835                         AC_DEFINE(HAVE_OLD_PAM)
 836                         AC_MSG_RESULT(yes)
 837                         PAM_MSG="yes (old library)"
 838                 ]
 839         )
 840 fi
 841
 842 # Some systems want crypt() from libcrypt, *not* the version in OpenSSL,
 843 # because the system crypt() is more featureful.
 844 if test "x$check_for_libcrypt_before" = "x1"; then
 845         AC_CHECK_LIB(crypt, crypt)
 846 fi
 847
 848 # Search for OpenSSL
 849 saved_CPPFLAGS="$CPPFLAGS"
 850 saved_LDFLAGS="$LDFLAGS"
 851 AC_ARG_WITH(ssl-dir,
 852         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
 853         [
 854                 if test "x$withval" != "xno" ; then
 855                         if test -d "$withval/lib"; then
 856                                 if test -n "${need_dash_r}"; then
 857                                         LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 858                                 else
 859                                         LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 860                                 fi
 861                         else
 862                                 if test -n "${need_dash_r}"; then
 863                                         LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 864                                 else
 865                                         LDFLAGS="-L${withval} ${LDFLAGS}"
 866                                 fi
 867                         fi
 868                         if test -d "$withval/include"; then
 869                                 CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 870                         else
 871                                 CPPFLAGS="-I${withval} ${CPPFLAGS}"
 872                         fi
 873                 fi
 874         ]
 875 )
 876 LIBS="$LIBS -lcrypto"
 877 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 878         [
 879                 dnl Check default openssl install dir
 880                 if test -n "${need_dash_r}"; then
 881                         LDFLAGS="-L/usr/local/ssl/lib -R/usr/local/ssl/lib ${saved_LDFLAGS}"
 882                 else
 883                         LDFLAGS="-L/usr/local/ssl/lib ${saved_LDFLAGS}"
 884                 fi
 885                 CPPFLAGS="-I/usr/local/ssl/include ${saved_CPPFLAGS}"
 886                 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 887                         [
 888                                 AC_MSG_ERROR([*** Can't find recent OpenSSL libcrypto (see config.log for details) ***])
 889                         ]
 890                 )
 891         ]
 892 )
 893
 894 # Determine OpenSSL header version
 895 AC_MSG_CHECKING([OpenSSL header version])
 896 AC_TRY_RUN(
 897         [
 898 #include <stdio.h>
 899 #include <string.h>
 900 #include <openssl/opensslv.h>
 901 #define DATA "conftest.sslincver"
 902 int main(void) {
 903         FILE *fd;
 904         int rc;
 905
 906         fd = fopen(DATA,"w");
 907         if(fd == NULL)
 908                 exit(1);
 909
 910         if ((rc = fprintf(fd ,"%x (%s)\n", OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT)) <0)
 911                 exit(1);
 912
 913         exit(0);
 914 }
 915         ],
 916         [
 917                 ssl_header_ver=`cat conftest.sslincver`
 918                 AC_MSG_RESULT($ssl_header_ver)
 919         ],
 920         [
 921                 AC_MSG_RESULT(not found)
 922                 AC_MSG_ERROR(OpenSSL version header not found.)
 923         ]
 924 )
 925
 926 # Determine OpenSSL library version
 927 AC_MSG_CHECKING([OpenSSL library version])
 928 AC_TRY_RUN(
 929         [
 930 #include <stdio.h>
 931 #include <string.h>
 932 #include <openssl/opensslv.h>
 933 #include <openssl/crypto.h>
 934 #define DATA "conftest.ssllibver"
 935 int main(void) {
 936         FILE *fd;
 937         int rc;
 938
 939         fd = fopen(DATA,"w");
 940         if(fd == NULL)
 941                 exit(1);
 942
 943         if ((rc = fprintf(fd ,"%x (%s)\n", SSLeay(), SSLeay_version(SSLEAY_VERSION))) <0)
 944                 exit(1);
 945
 946         exit(0);
 947 }
 948         ],
 949         [
 950                 ssl_library_ver=`cat conftest.ssllibver`
 951                 AC_MSG_RESULT($ssl_library_ver)
 952         ],
 953         [
 954                 AC_MSG_RESULT(not found)
 955                 AC_MSG_ERROR(OpenSSL library not found.)
 956         ]
 957 )
 958
 959 # Sanity check OpenSSL headers
 960 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
 961 AC_TRY_RUN(
 962         [
 963 #include <string.h>
 964 #include <openssl/opensslv.h>
 965 int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
 966         ],
 967         [
 968                 AC_MSG_RESULT(yes)
 969         ],
 970         [
 971                 AC_MSG_RESULT(no)
 972                 AC_MSG_ERROR([Your OpenSSL headers do not match your library.
 973 Check config.log for details.
 974 Also see contrib/findssl.sh for help identifying header/library mismatches.])
 975         ]
 976 )
 977
 978 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
 979 # version in OpenSSL. Skip this for PAM
 980 if test "x$check_for_libcrypt_later" = "x1"; then
 981         AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
 982 fi
 983
 984
 985 ### Configure cryptographic random number support
 986
 987 # Check wheter OpenSSL seeds itself
 988 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
 989 AC_TRY_RUN(
 990         [
 991 #include <string.h>
 992 #include <openssl/rand.h>
 993 int main(void) { exit(RAND_status() == 1 ? 0 : 1); }
 994         ],
 995         [
 996                 OPENSSL_SEEDS_ITSELF=yes
 997                 AC_MSG_RESULT(yes)
 998         ],
 999         [
1000                 AC_MSG_RESULT(no)
1001                 # Default to use of the rand helper if OpenSSL doesn't
1002                 # seed itself
1003                 USE_RAND_HELPER=yes
1004         ]
1005 )
1006
1007
1008 # Do we want to force the use of the rand helper?
1009 AC_ARG_WITH(rand-helper,
1010         [  --with-rand-helper      Use subprocess to gather strong randomness ],
1011         [
1012                 if test "x$withval" = "xno" ; then
1013                         # Force use of OpenSSL's internal RNG, even if
1014                         # the previous test showed it to be unseeded.
1015                         if test -z "$OPENSSL_SEEDS_ITSELF" ; then
1016                                 AC_MSG_WARN([*** Forcing use of OpenSSL's non-self-seeding PRNG])
1017                                 OPENSSL_SEEDS_ITSELF=yes
1018                                 USE_RAND_HELPER=""
1019                         fi
1020                 else
1021                         USE_RAND_HELPER=yes
1022                 fi
1023         ],
1024 )
1025
1026 # Which randomness source do we use?
1027 if test ! -z "$OPENSSL_SEEDS_ITSELF" -a -z "$USE_RAND_HELPER" ; then
1028         # OpenSSL only
1029         AC_DEFINE(OPENSSL_PRNG_ONLY)
1030         RAND_MSG="OpenSSL internal ONLY"
1031         INSTALL_SSH_RAND_HELPER=""
1032 elif test ! -z "$USE_RAND_HELPER" ; then
1033         # install rand helper
1034         RAND_MSG="ssh-rand-helper"
1035         INSTALL_SSH_RAND_HELPER="yes"
1036 fi
1037 AC_SUBST(INSTALL_SSH_RAND_HELPER)
1038
1039 ### Configuration of ssh-rand-helper
1040
1041 # PRNGD TCP socket
1042 AC_ARG_WITH(prngd-port,
1043         [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
1044         [
1045                 case "$withval" in
1046                 no)
1047                         withval=""
1048                         ;;
1049                 [[0-9]]*)
1050                         ;;
1051                 *)
1052                         AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
1053                         ;;
1054                 esac
1055                 if test ! -z "$withval" ; then
1056                         PRNGD_PORT="$withval"
1057                         AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT)
1058                 fi
1059         ]
1060 )
1061
1062 # PRNGD Unix domain socket
1063 AC_ARG_WITH(prngd-socket,
1064         [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
1065         [
1066                 case "$withval" in
1067                 yes)
1068                         withval="/var/run/egd-pool"
1069                         ;;
1070                 no)
1071                         withval=""
1072                         ;;
1073                 /*)
1074                         ;;
1075                 *)
1076                         AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
1077                         ;;
1078                 esac
1079
1080                 if test ! -z "$withval" ; then
1081                         if test ! -z "$PRNGD_PORT" ; then
1082                                 AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
1083                         fi
1084                         if test ! -r "$withval" ; then
1085                                 AC_MSG_WARN(Entropy socket is not readable)
1086                         fi
1087                         PRNGD_SOCKET="$withval"
1088                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1089                 fi
1090         ],
1091         [
1092                 # Check for existing socket only if we don't have a random device already
1093                 if test "$USE_RAND_HELPER" = yes ; then
1094                         AC_MSG_CHECKING(for PRNGD/EGD socket)
1095                         # Insert other locations here
1096                         for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
1097                                 if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
1098                                         PRNGD_SOCKET="$sock"
1099                                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1100                                         break;
1101                                 fi
1102                         done
1103                         if test ! -z "$PRNGD_SOCKET" ; then
1104                                 AC_MSG_RESULT($PRNGD_SOCKET)
1105                         else
1106                                 AC_MSG_RESULT(not found)
1107                         fi
1108                 fi
1109         ]
1110 )
1111
1112 # Change default command timeout for hashing entropy source
1113 entropy_timeout=200
1114 AC_ARG_WITH(entropy-timeout,
1115         [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
1116         [
1117                 if test "x$withval" != "xno" ; then
1118                         entropy_timeout=$withval
1119                 fi
1120         ]
1121 )
1122 AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout)
1123
1124 SSH_PRIVSEP_USER=sshd
1125 AC_ARG_WITH(privsep-user,
1126         [  --with-privsep-user=user Specify non-privileged user for privilege separation],
1127         [
1128                 if test -n "$withval"; then
1129                         SSH_PRIVSEP_USER=$withval
1130                 fi
1131         ]
1132 )
1133 AC_DEFINE_UNQUOTED(SSH_PRIVSEP_USER, "$SSH_PRIVSEP_USER")
1134 AC_SUBST(SSH_PRIVSEP_USER)
1135
1136 # We do this little dance with the search path to insure
1137 # that programs that we select for use by installed programs
1138 # (which may be run by the super-user) come from trusted
1139 # locations before they come from the user's private area.
1140 # This should help avoid accidentally configuring some
1141 # random version of a program in someone's personal bin.
1142
1143 OPATH=$PATH
1144 PATH=/bin:/usr/bin
1145 test -h /bin 2> /dev/null && PATH=/usr/bin
1146 test -d /sbin && PATH=$PATH:/sbin
1147 test -d /usr/sbin && PATH=$PATH:/usr/sbin
1148 PATH=$PATH:/etc:$OPATH
1149
1150 # These programs are used by the command hashing source to gather entropy
1151 OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
1152 OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
1153 OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
1154 OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
1155 OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
1156 OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
1157 OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
1158 OSSH_PATH_ENTROPY_PROG(PROG_W, w)
1159 OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
1160 OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
1161 OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
1162 OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
1163 OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
1164 OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
1165 OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
1166 OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
1167 # restore PATH
1168 PATH=$OPATH
1169
1170 # Where does ssh-rand-helper get its randomness from?
1171 INSTALL_SSH_PRNG_CMDS=""
1172 if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
1173         if test ! -z "$PRNGD_PORT" ; then
1174                 RAND_HELPER_MSG="TCP localhost:$PRNGD_PORT"
1175         elif test ! -z "$PRNGD_SOCKET" ; then
1176                 RAND_HELPER_MSG="Unix domain socket \"$PRNGD_SOCKET\""
1177         else
1178                 RAND_HELPER_MSG="Command hashing (timeout $entropy_timeout)"
1179                 RAND_HELPER_CMDHASH=yes
1180                 INSTALL_SSH_PRNG_CMDS="yes"
1181         fi
1182 fi
1183 AC_SUBST(INSTALL_SSH_PRNG_CMDS)
1184
1185
1186 # Cheap hack to ensure NEWS-OS libraries are arranged right.
1187 if test ! -z "$SONY" ; then
1188   LIBS="$LIBS -liberty";
1189 fi
1190
1191 # Checks for data types
1192 AC_CHECK_SIZEOF(char, 1)
1193 AC_CHECK_SIZEOF(short int, 2)
1194 AC_CHECK_SIZEOF(int, 4)
1195 AC_CHECK_SIZEOF(long int, 4)
1196 AC_CHECK_SIZEOF(long long int, 8)
1197
1198 # Sanity check long long for some platforms (AIX)
1199 if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
1200         ac_cv_sizeof_long_long_int=0
1201 fi
1202
1203 # More checks for data types
1204 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
1205         AC_TRY_COMPILE(
1206                 [ #include <sys/types.h> ],
1207                 [ u_int a; a = 1;],
1208                 [ ac_cv_have_u_int="yes" ],
1209                 [ ac_cv_have_u_int="no" ]
1210         )
1211 ])
1212 if test "x$ac_cv_have_u_int" = "xyes" ; then
1213         AC_DEFINE(HAVE_U_INT)
1214         have_u_int=1
1215 fi
1216
1217 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
1218         AC_TRY_COMPILE(
1219                 [ #include <sys/types.h> ],
1220                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1221                 [ ac_cv_have_intxx_t="yes" ],
1222                 [ ac_cv_have_intxx_t="no" ]
1223         )
1224 ])
1225 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
1226         AC_DEFINE(HAVE_INTXX_T)
1227         have_intxx_t=1
1228 fi
1229
1230 if (test -z "$have_intxx_t" && \
1231            test "x$ac_cv_header_stdint_h" = "xyes")
1232 then
1233     AC_MSG_CHECKING([for intXX_t types in stdint.h])
1234         AC_TRY_COMPILE(
1235                 [ #include <stdint.h> ],
1236                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1237                 [
1238                         AC_DEFINE(HAVE_INTXX_T)
1239                         AC_MSG_RESULT(yes)
1240                 ],
1241                 [ AC_MSG_RESULT(no) ]
1242         )
1243 fi
1244
1245 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
1246         AC_TRY_COMPILE(
1247                 [
1248 #include <sys/types.h>
1249 #ifdef HAVE_STDINT_H
1250 # include <stdint.h>
1251 #endif
1252 #include <sys/socket.h>
1253 #ifdef HAVE_SYS_BITYPES_H
1254 # include <sys/bitypes.h>
1255 #endif
1256                 ],
1257                 [ int64_t a; a = 1;],
1258                 [ ac_cv_have_int64_t="yes" ],
1259                 [ ac_cv_have_int64_t="no" ]
1260         )
1261 ])
1262 if test "x$ac_cv_have_int64_t" = "xyes" ; then
1263         AC_DEFINE(HAVE_INT64_T)
1264 fi
1265
1266 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
1267         AC_TRY_COMPILE(
1268                 [ #include <sys/types.h> ],
1269                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1270                 [ ac_cv_have_u_intxx_t="yes" ],
1271                 [ ac_cv_have_u_intxx_t="no" ]
1272         )
1273 ])
1274 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
1275         AC_DEFINE(HAVE_U_INTXX_T)
1276         have_u_intxx_t=1
1277 fi
1278
1279 if test -z "$have_u_intxx_t" ; then
1280     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
1281         AC_TRY_COMPILE(
1282                 [ #include <sys/socket.h> ],
1283                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1284                 [
1285                         AC_DEFINE(HAVE_U_INTXX_T)
1286                         AC_MSG_RESULT(yes)
1287                 ],
1288                 [ AC_MSG_RESULT(no) ]
1289         )
1290 fi
1291
1292 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
1293         AC_TRY_COMPILE(
1294                 [ #include <sys/types.h> ],
1295                 [ u_int64_t a; a = 1;],
1296                 [ ac_cv_have_u_int64_t="yes" ],
1297                 [ ac_cv_have_u_int64_t="no" ]
1298         )
1299 ])
1300 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
1301         AC_DEFINE(HAVE_U_INT64_T)
1302         have_u_int64_t=1
1303 fi
1304
1305 if test -z "$have_u_int64_t" ; then
1306     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
1307         AC_TRY_COMPILE(
1308                 [ #include <sys/bitypes.h> ],
1309                 [ u_int64_t a; a = 1],
1310                 [
1311                         AC_DEFINE(HAVE_U_INT64_T)
1312                         AC_MSG_RESULT(yes)
1313                 ],
1314                 [ AC_MSG_RESULT(no) ]
1315         )
1316 fi
1317
1318 if test -z "$have_u_intxx_t" ; then
1319         AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
1320                 AC_TRY_COMPILE(
1321                         [
1322 #include <sys/types.h>
1323                         ],
1324                         [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
1325                         [ ac_cv_have_uintxx_t="yes" ],
1326                         [ ac_cv_have_uintxx_t="no" ]
1327                 )
1328         ])
1329         if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
1330                 AC_DEFINE(HAVE_UINTXX_T)
1331         fi
1332 fi
1333
1334 if test -z "$have_uintxx_t" ; then
1335     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
1336         AC_TRY_COMPILE(
1337                 [ #include <stdint.h> ],
1338                 [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
1339                 [
1340                         AC_DEFINE(HAVE_UINTXX_T)
1341                         AC_MSG_RESULT(yes)
1342                 ],
1343                 [ AC_MSG_RESULT(no) ]
1344         )
1345 fi
1346
1347 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
1348            test "x$ac_cv_header_sys_bitypes_h" = "xyes")
1349 then
1350         AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
1351         AC_TRY_COMPILE(
1352                 [
1353 #include <sys/bitypes.h>
1354                 ],
1355                 [
1356                         int8_t a; int16_t b; int32_t c;
1357                         u_int8_t e; u_int16_t f; u_int32_t g;
1358                         a = b = c = e = f = g = 1;
1359                 ],
1360                 [
1361                         AC_DEFINE(HAVE_U_INTXX_T)
1362                         AC_DEFINE(HAVE_INTXX_T)
1363                         AC_MSG_RESULT(yes)
1364                 ],
1365                 [AC_MSG_RESULT(no)]
1366         )
1367 fi
1368
1369
1370 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
1371         AC_TRY_COMPILE(
1372                 [
1373 #include <sys/types.h>
1374                 ],
1375                 [ u_char foo; foo = 125; ],
1376                 [ ac_cv_have_u_char="yes" ],
1377                 [ ac_cv_have_u_char="no" ]
1378         )
1379 ])
1380 if test "x$ac_cv_have_u_char" = "xyes" ; then
1381         AC_DEFINE(HAVE_U_CHAR)
1382 fi
1383
1384 TYPE_SOCKLEN_T
1385
1386 AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
1387
1388 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
1389         AC_TRY_COMPILE(
1390                 [
1391 #include <sys/types.h>
1392                 ],
1393                 [ size_t foo; foo = 1235; ],
1394                 [ ac_cv_have_size_t="yes" ],
1395                 [ ac_cv_have_size_t="no" ]
1396         )
1397 ])
1398 if test "x$ac_cv_have_size_t" = "xyes" ; then
1399         AC_DEFINE(HAVE_SIZE_T)
1400 fi
1401
1402 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
1403         AC_TRY_COMPILE(
1404                 [
1405 #include <sys/types.h>
1406                 ],
1407                 [ ssize_t foo; foo = 1235; ],
1408                 [ ac_cv_have_ssize_t="yes" ],
1409                 [ ac_cv_have_ssize_t="no" ]
1410         )
1411 ])
1412 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
1413         AC_DEFINE(HAVE_SSIZE_T)
1414 fi
1415
1416 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
1417         AC_TRY_COMPILE(
1418                 [
1419 #include <time.h>
1420                 ],
1421                 [ clock_t foo; foo = 1235; ],
1422                 [ ac_cv_have_clock_t="yes" ],
1423                 [ ac_cv_have_clock_t="no" ]
1424         )
1425 ])
1426 if test "x$ac_cv_have_clock_t" = "xyes" ; then
1427         AC_DEFINE(HAVE_CLOCK_T)
1428 fi
1429
1430 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
1431         AC_TRY_COMPILE(
1432                 [
1433 #include <sys/types.h>
1434 #include <sys/socket.h>
1435                 ],
1436                 [ sa_family_t foo; foo = 1235; ],
1437                 [ ac_cv_have_sa_family_t="yes" ],
1438                 [ AC_TRY_COMPILE(
1439                   [
1440 #include <sys/types.h>
1441 #include <sys/socket.h>
1442 #include <netinet/in.h>
1443                 ],
1444                 [ sa_family_t foo; foo = 1235; ],
1445                 [ ac_cv_have_sa_family_t="yes" ],
1446
1447                 [ ac_cv_have_sa_family_t="no" ]
1448         )]
1449         )
1450 ])
1451 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
1452         AC_DEFINE(HAVE_SA_FAMILY_T)
1453 fi
1454
1455 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
1456         AC_TRY_COMPILE(
1457                 [
1458 #include <sys/types.h>
1459                 ],
1460                 [ pid_t foo; foo = 1235; ],
1461                 [ ac_cv_have_pid_t="yes" ],
1462                 [ ac_cv_have_pid_t="no" ]
1463         )
1464 ])
1465 if test "x$ac_cv_have_pid_t" = "xyes" ; then
1466         AC_DEFINE(HAVE_PID_T)
1467 fi
1468
1469 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
1470         AC_TRY_COMPILE(
1471                 [
1472 #include <sys/types.h>
1473                 ],
1474                 [ mode_t foo; foo = 1235; ],
1475                 [ ac_cv_have_mode_t="yes" ],
1476                 [ ac_cv_have_mode_t="no" ]
1477         )
1478 ])
1479 if test "x$ac_cv_have_mode_t" = "xyes" ; then
1480         AC_DEFINE(HAVE_MODE_T)
1481 fi
1482
1483
1484 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
1485         AC_TRY_COMPILE(
1486                 [
1487 #include <sys/types.h>
1488 #include <sys/socket.h>
1489                 ],
1490                 [ struct sockaddr_storage s; ],
1491                 [ ac_cv_have_struct_sockaddr_storage="yes" ],
1492                 [ ac_cv_have_struct_sockaddr_storage="no" ]
1493         )
1494 ])
1495 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
1496         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
1497 fi
1498
1499 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
1500         AC_TRY_COMPILE(
1501                 [
1502 #include <sys/types.h>
1503 #include <netinet/in.h>
1504                 ],
1505                 [ struct sockaddr_in6 s; s.sin6_family = 0; ],
1506                 [ ac_cv_have_struct_sockaddr_in6="yes" ],
1507                 [ ac_cv_have_struct_sockaddr_in6="no" ]
1508         )
1509 ])
1510 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
1511         AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
1512 fi
1513
1514 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
1515         AC_TRY_COMPILE(
1516                 [
1517 #include <sys/types.h>
1518 #include <netinet/in.h>
1519                 ],
1520                 [ struct in6_addr s; s.s6_addr[0] = 0; ],
1521                 [ ac_cv_have_struct_in6_addr="yes" ],
1522                 [ ac_cv_have_struct_in6_addr="no" ]
1523         )
1524 ])
1525 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
1526         AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
1527 fi
1528
1529 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
1530         AC_TRY_COMPILE(
1531                 [
1532 #include <sys/types.h>
1533 #include <sys/socket.h>
1534 #include <netdb.h>
1535                 ],
1536                 [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
1537                 [ ac_cv_have_struct_addrinfo="yes" ],
1538                 [ ac_cv_have_struct_addrinfo="no" ]
1539         )
1540 ])
1541 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
1542         AC_DEFINE(HAVE_STRUCT_ADDRINFO)
1543 fi
1544
1545 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
1546         AC_TRY_COMPILE(
1547                 [ #include <sys/time.h> ],
1548                 [ struct timeval tv; tv.tv_sec = 1;],
1549                 [ ac_cv_have_struct_timeval="yes" ],
1550                 [ ac_cv_have_struct_timeval="no" ]
1551         )
1552 ])
1553 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
1554         AC_DEFINE(HAVE_STRUCT_TIMEVAL)
1555         have_struct_timeval=1
1556 fi
1557
1558 AC_CHECK_TYPES(struct timespec)
1559
1560 # We need int64_t or else certian parts of the compile will fail.
1561 if test "x$ac_cv_have_int64_t" = "xno" -a \
1562         "x$ac_cv_sizeof_long_int" != "x8" -a \
1563         "x$ac_cv_sizeof_long_long_int" = "x0" ; then
1564         echo "OpenSSH requires int64_t support.  Contact your vendor or install"
1565         echo "an alternative compiler (I.E., GCC) before continuing."
1566         echo ""
1567         exit 1;
1568 else
1569 dnl test snprintf (broken on SCO w/gcc)
1570         AC_TRY_RUN(
1571                 [
1572 #include <stdio.h>
1573 #include <string.h>
1574 #ifdef HAVE_SNPRINTF
1575 main()
1576 {
1577         char buf[50];
1578         char expected_out[50];
1579         int mazsize = 50 ;
1580 #if (SIZEOF_LONG_INT == 8)
1581         long int num = 0x7fffffffffffffff;
1582 #else
1583         long long num = 0x7fffffffffffffffll;
1584 #endif
1585         strcpy(expected_out, "9223372036854775807");
1586         snprintf(buf, mazsize, "%lld", num);
1587         if(strcmp(buf, expected_out) != 0)
1588                 exit(1);
1589         exit(0);
1590 }
1591 #else
1592 main() { exit(0); }
1593 #endif
1594                 ], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ]
1595         )
1596 fi
1597
1598 dnl Checks for structure members
1599 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
1600 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
1601 OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
1602 OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
1603 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
1604 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
1605 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
1606 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
1607 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
1608 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
1609 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
1610 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
1611 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
1612 OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
1613 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
1614 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
1615 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
1616
1617 AC_CHECK_MEMBERS([struct stat.st_blksize])
1618
1619 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
1620                 ac_cv_have_ss_family_in_struct_ss, [
1621         AC_TRY_COMPILE(
1622                 [
1623 #include <sys/types.h>
1624 #include <sys/socket.h>
1625                 ],
1626                 [ struct sockaddr_storage s; s.ss_family = 1; ],
1627                 [ ac_cv_have_ss_family_in_struct_ss="yes" ],
1628                 [ ac_cv_have_ss_family_in_struct_ss="no" ],
1629         )
1630 ])
1631 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
1632         AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
1633 fi
1634
1635 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
1636                 ac_cv_have___ss_family_in_struct_ss, [
1637         AC_TRY_COMPILE(
1638                 [
1639 #include <sys/types.h>
1640 #include <sys/socket.h>
1641                 ],
1642                 [ struct sockaddr_storage s; s.__ss_family = 1; ],
1643                 [ ac_cv_have___ss_family_in_struct_ss="yes" ],
1644                 [ ac_cv_have___ss_family_in_struct_ss="no" ]
1645         )
1646 ])
1647 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
1648         AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
1649 fi
1650
1651 AC_CACHE_CHECK([for pw_class field in struct passwd],
1652                 ac_cv_have_pw_class_in_struct_passwd, [
1653         AC_TRY_COMPILE(
1654                 [
1655 #include <pwd.h>
1656                 ],
1657                 [ struct passwd p; p.pw_class = 0; ],
1658                 [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
1659                 [ ac_cv_have_pw_class_in_struct_passwd="no" ]
1660         )
1661 ])
1662 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
1663         AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD)
1664 fi
1665
1666 AC_CACHE_CHECK([for pw_expire field in struct passwd],
1667                 ac_cv_have_pw_expire_in_struct_passwd, [
1668         AC_TRY_COMPILE(
1669                 [
1670 #include <pwd.h>
1671                 ],
1672                 [ struct passwd p; p.pw_expire = 0; ],
1673                 [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
1674                 [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
1675         )
1676 ])
1677 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
1678         AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD)
1679 fi
1680
1681 AC_CACHE_CHECK([for pw_change field in struct passwd],
1682                 ac_cv_have_pw_change_in_struct_passwd, [
1683         AC_TRY_COMPILE(
1684                 [
1685 #include <pwd.h>
1686                 ],
1687                 [ struct passwd p; p.pw_change = 0; ],
1688                 [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
1689                 [ ac_cv_have_pw_change_in_struct_passwd="no" ]
1690         )
1691 ])
1692 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
1693         AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD)
1694 fi
1695
1696 dnl make sure we're using the real structure members and not defines
1697 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
1698                 ac_cv_have_accrights_in_msghdr, [
1699         AC_TRY_RUN(
1700                 [
1701 #include <sys/types.h>
1702 #include <sys/socket.h>
1703 #include <sys/uio.h>
1704 int main() {
1705 #ifdef msg_accrights
1706 exit(1);
1707 #endif
1708 struct msghdr m;
1709 m.msg_accrights = 0;
1710 exit(0);
1711 }
1712                 ],
1713                 [ ac_cv_have_accrights_in_msghdr="yes" ],
1714                 [ ac_cv_have_accrights_in_msghdr="no" ]
1715         )
1716 ])
1717 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
1718         AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR)
1719 fi
1720
1721 AC_CACHE_CHECK([for msg_control field in struct msghdr],
1722                 ac_cv_have_control_in_msghdr, [
1723         AC_TRY_RUN(
1724                 [
1725 #include <sys/types.h>
1726 #include <sys/socket.h>
1727 #include <sys/uio.h>
1728 int main() {
1729 #ifdef msg_control
1730 exit(1);
1731 #endif
1732 struct msghdr m;
1733 m.msg_control = 0;
1734 exit(0);
1735 }
1736                 ],
1737                 [ ac_cv_have_control_in_msghdr="yes" ],
1738                 [ ac_cv_have_control_in_msghdr="no" ]
1739         )
1740 ])
1741 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
1742         AC_DEFINE(HAVE_CONTROL_IN_MSGHDR)
1743 fi
1744
1745 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
1746         AC_TRY_LINK([],
1747                 [ extern char *__progname; printf("%s", __progname); ],
1748                 [ ac_cv_libc_defines___progname="yes" ],
1749                 [ ac_cv_libc_defines___progname="no" ]
1750         )
1751 ])
1752 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
1753         AC_DEFINE(HAVE___PROGNAME)
1754 fi
1755
1756 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
1757         AC_TRY_LINK([
1758 #include <stdio.h>
1759 ],
1760                 [ printf("%s", __FUNCTION__); ],
1761                 [ ac_cv_cc_implements___FUNCTION__="yes" ],
1762                 [ ac_cv_cc_implements___FUNCTION__="no" ]
1763         )
1764 ])
1765 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
1766         AC_DEFINE(HAVE___FUNCTION__)
1767 fi
1768
1769 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
1770         AC_TRY_LINK([
1771 #include <stdio.h>
1772 ],
1773                 [ printf("%s", __func__); ],
1774                 [ ac_cv_cc_implements___func__="yes" ],
1775                 [ ac_cv_cc_implements___func__="no" ]
1776         )
1777 ])
1778 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
1779         AC_DEFINE(HAVE___func__)
1780 fi
1781
1782 AC_CACHE_CHECK([whether getopt has optreset support],
1783                 ac_cv_have_getopt_optreset, [
1784         AC_TRY_LINK(
1785                 [
1786 #include <getopt.h>
1787                 ],
1788                 [ extern int optreset; optreset = 0; ],
1789                 [ ac_cv_have_getopt_optreset="yes" ],
1790                 [ ac_cv_have_getopt_optreset="no" ]
1791         )
1792 ])
1793 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
1794         AC_DEFINE(HAVE_GETOPT_OPTRESET)
1795 fi
1796
1797 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
1798         AC_TRY_LINK([],
1799                 [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
1800                 [ ac_cv_libc_defines_sys_errlist="yes" ],
1801                 [ ac_cv_libc_defines_sys_errlist="no" ]
1802         )
1803 ])
1804 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
1805         AC_DEFINE(HAVE_SYS_ERRLIST)
1806 fi
1807
1808
1809 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
1810         AC_TRY_LINK([],
1811                 [ extern int sys_nerr; printf("%i", sys_nerr);],
1812                 [ ac_cv_libc_defines_sys_nerr="yes" ],
1813                 [ ac_cv_libc_defines_sys_nerr="no" ]
1814         )
1815 ])
1816 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
1817         AC_DEFINE(HAVE_SYS_NERR)
1818 fi
1819
1820 SCARD_MSG="no"
1821 # Check whether user wants sectok support
1822 AC_ARG_WITH(sectok,
1823         [  --with-sectok           Enable smartcard support using libsectok],
1824         [
1825                 if test "x$withval" != "xno" ; then
1826                         if test "x$withval" != "xyes" ; then
1827                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1828                                 LDFLAGS="$LDFLAGS -L${withval}"
1829                                 if test ! -z "$need_dash_r" ; then
1830                                         LDFLAGS="$LDFLAGS -R${withval}"
1831                                 fi
1832                                 if test ! -z "$blibpath" ; then
1833                                         blibpath="$blibpath:${withval}"
1834                                 fi
1835                         fi
1836                         AC_CHECK_HEADERS(sectok.h)
1837                         if test "$ac_cv_header_sectok_h" != yes; then
1838                                 AC_MSG_ERROR(Can't find sectok.h)
1839                         fi
1840                         AC_CHECK_LIB(sectok, sectok_open)
1841                         if test "$ac_cv_lib_sectok_sectok_open" != yes; then
1842                                 AC_MSG_ERROR(Can't find libsectok)
1843                         fi
1844                         AC_DEFINE(SMARTCARD)
1845                         AC_DEFINE(USE_SECTOK)
1846                         SCARD_MSG="yes, using sectok"
1847                 fi
1848         ]
1849 )
1850
1851 # Check whether user wants OpenSC support
1852 AC_ARG_WITH(opensc,
1853         AC_HELP_STRING([--with-opensc=PFX],
1854                        [Enable smartcard support using OpenSC]),
1855         opensc_config_prefix="$withval", opensc_config_prefix="")
1856 if test x$opensc_config_prefix != x ; then
1857   OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
1858   AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
1859   if test "$OPENSC_CONFIG" != "no"; then
1860     LIBOPENSC_CFLAGS=`$OPENSC_CONFIG --cflags`
1861     LIBOPENSC_LIBS=`$OPENSC_CONFIG --libs`
1862     CPPFLAGS="$CPPFLAGS $LIBOPENSC_CFLAGS"
1863     LDFLAGS="$LDFLAGS $LIBOPENSC_LIBS"
1864     AC_DEFINE(SMARTCARD)
1865     AC_DEFINE(USE_OPENSC)
1866     SCARD_MSG="yes, using OpenSC"
1867   fi
1868 fi
1869
1870 # Check whether user wants DNS support
1871 DNS_MSG="no"
1872 AC_ARG_WITH(dns,
1873         [  --with-dns              Support for fetching keys from DNS (experimental)],
1874         [
1875                 if test "x$withval" != "xno" ; then
1876                         DNS_MSG="yes"
1877                         AC_DEFINE(DNS)
1878                         AC_SEARCH_LIBS(getrrsetbyname, resolv,
1879                                 [AC_DEFINE(HAVE_GETRRSETBYNAME)],
1880                                 [
1881                                         # Needed by our getrrsetbyname()
1882                                         AC_SEARCH_LIBS(res_query, resolv)
1883                                         AC_SEARCH_LIBS(dn_expand, resolv)
1884                                 ])
1885                 fi
1886         ]
1887 )
1888
1889 # Check whether user wants Kerberos 5 support
1890 KRB5_MSG="no"
1891 AC_ARG_WITH(kerberos5,
1892         [  --with-kerberos5=PATH   Enable Kerberos 5 support],
1893         [
1894                 if test "x$withval" != "xno" ; then
1895                         if test "x$withval" = "xyes" ; then
1896                                 KRB5ROOT="/usr/local"
1897                         else
1898                                 KRB5ROOT=${withval}
1899                         fi
1900                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
1901                         LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
1902                         AC_DEFINE(KRB5)
1903                         KRB5_MSG="yes"
1904                         AC_MSG_CHECKING(whether we are using Heimdal)
1905                         AC_TRY_COMPILE([ #include <krb5.h> ],
1906                                        [ char *tmp = heimdal_version; ],
1907                                        [ AC_MSG_RESULT(yes)
1908                                          AC_DEFINE(HEIMDAL)
1909                                          K5LIBS="-lkrb5 -ldes -lcom_err -lasn1 -lroken"
1910                                        ],
1911                                        [ AC_MSG_RESULT(no)
1912                                          K5LIBS="-lkrb5 -lk5crypto -lcom_err"
1913                                        ]
1914                         )
1915                         if test ! -z "$need_dash_r" ; then
1916                                 LDFLAGS="$LDFLAGS -R${KRB5ROOT}/lib"
1917                         fi
1918                         if test ! -z "$blibpath" ; then
1919                                 blibpath="$blibpath:${KRB5ROOT}/lib"
1920                         fi
1921                         AC_SEARCH_LIBS(dn_expand, resolv)
1922
1923                         KRB5=yes
1924                 fi
1925         ]
1926 )
1927 # Check whether user wants Kerberos 4 support
1928 KRB4_MSG="no"
1929 AC_ARG_WITH(kerberos4,
1930         [  --with-kerberos4=PATH   Enable Kerberos 4 support],
1931         [
1932                 if test "x$withval" != "xno" ; then
1933                         if test "x$withval" != "xyes" ; then
1934                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1935                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1936                                 if test ! -z "$need_dash_r" ; then
1937                                         LDFLAGS="$LDFLAGS -R${withval}/lib"
1938                                 fi
1939                                 if test ! -z "$blibpath" ; then
1940                                         blibpath="$blibpath:${withval}/lib"
1941                                 fi
1942                         else
1943                                 if test -d /usr/include/kerberosIV ; then
1944                                         CPPFLAGS="$CPPFLAGS -I/usr/include/kerberosIV"
1945                                 fi
1946                         fi
1947
1948                         AC_CHECK_HEADERS(krb.h)
1949                         if test "$ac_cv_header_krb_h" != yes; then
1950                                 AC_MSG_WARN([Cannot find krb.h, build may fail])
1951                         fi
1952                         AC_CHECK_LIB(krb, main)
1953                         if test "$ac_cv_lib_krb_main" != yes; then
1954                                 AC_CHECK_LIB(krb4, main)
1955                                 if test "$ac_cv_lib_krb4_main" != yes; then
1956                                         AC_MSG_WARN([Cannot find libkrb nor libkrb4, build may fail])
1957                                 else
1958                                         KLIBS="-lkrb4"
1959                                 fi
1960                         else
1961                                 KLIBS="-lkrb"
1962                         fi
1963                         AC_CHECK_LIB(des, des_cbc_encrypt)
1964                         if test "$ac_cv_lib_des_des_cbc_encrypt" != yes; then
1965                                 AC_CHECK_LIB(des425, des_cbc_encrypt)
1966                                 if test "$ac_cv_lib_des425_des_cbc_encrypt" != yes; then
1967                                         AC_MSG_WARN([Cannot find libdes nor libdes425, build may fail])
1968                                 else
1969                                         KLIBS="-ldes425"
1970                                 fi
1971                         else
1972                                 KLIBS="-ldes"
1973                         fi
1974                         AC_CHECK_LIB(resolv, dn_expand, , )
1975                         KRB4=yes
1976                         KRB4_MSG="yes"
1977                         AC_DEFINE(KRB4)
1978                 fi
1979         ]
1980 )
1981
1982 # Check whether user wants AFS support
1983 AFS_MSG="no"
1984 AC_ARG_WITH(afs,
1985         [  --with-afs=PATH         Enable AFS support],
1986         [
1987                 if test "x$withval" != "xno" ; then
1988
1989                         if test "x$withval" != "xyes" ; then
1990                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1991                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1992                         fi
1993
1994                         if test -z "$KRB4" ; then
1995                                 AC_MSG_WARN([AFS requires Kerberos IV support, build may fail])
1996                         fi
1997
1998                         LIBS="-lkafs $LIBS"
1999                         if test ! -z "$AFS_LIBS" ; then
2000                                 LIBS="$LIBS $AFS_LIBS"
2001                         fi
2002                         AC_DEFINE(AFS)
2003                         AFS_MSG="yes"
2004                 fi
2005         ]
2006 )
2007 LIBS="$LIBS $KLIBS $K5LIBS"
2008
2009 # Looking for programs, paths and files
2010
2011 PRIVSEP_PATH=/var/empty
2012 AC_ARG_WITH(privsep-path,
2013         [  --with-privsep-path=xxx Path for privilege separation chroot (default=/var/empty)],
2014         [
2015                 if test "x$withval" != "$no" ; then
2016                         PRIVSEP_PATH=$withval
2017                 fi
2018         ]
2019 )
2020 AC_SUBST(PRIVSEP_PATH)
2021
2022 AC_ARG_WITH(xauth,
2023         [  --with-xauth=PATH       Specify path to xauth program ],
2024         [
2025                 if test "x$withval" != "xno" ; then
2026                         xauth_path=$withval
2027                 fi
2028         ],
2029         [
2030                 TestPath="$PATH"
2031                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X/bin"
2032                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/bin/X11"
2033                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X11R6/bin"
2034                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/openwin/bin"
2035                 AC_PATH_PROG(xauth_path, xauth, , $TestPath)
2036                 if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
2037                         xauth_path="/usr/openwin/bin/xauth"
2038                 fi
2039         ]
2040 )
2041
2042 STRIP_OPT=-s
2043 AC_ARG_ENABLE(strip,
2044         [  --disable-strip         Disable calling strip(1) on install],
2045         [
2046                 if test "x$enableval" = "xno" ; then
2047                         STRIP_OPT=
2048                 fi
2049         ]
2050 )
2051 AC_SUBST(STRIP_OPT)
2052
2053 if test -z "$xauth_path" ; then
2054         XAUTH_PATH="undefined"
2055         AC_SUBST(XAUTH_PATH)
2056 else
2057         AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
2058         XAUTH_PATH=$xauth_path
2059         AC_SUBST(XAUTH_PATH)
2060 fi
2061
2062 # Check for mail directory (last resort if we cannot get it from headers)
2063 if test ! -z "$MAIL" ; then
2064         maildir=`dirname $MAIL`
2065         AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
2066 fi
2067
2068 if test -z "$no_dev_ptmx" ; then
2069         if test "x$disable_ptmx_check" != "xyes" ; then
2070                 AC_CHECK_FILE("/dev/ptmx",
2071                         [
2072                                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
2073                                 have_dev_ptmx=1
2074                         ]
2075                 )
2076         fi
2077 fi
2078 AC_CHECK_FILE("/dev/ptc",
2079         [
2080                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
2081                 have_dev_ptc=1
2082         ]
2083 )
2084
2085 # Options from here on. Some of these are preset by platform above
2086 AC_ARG_WITH(mantype,
2087         [  --with-mantype=man|cat|doc  Set man page type],
2088         [
2089                 case "$withval" in
2090                 man|cat|doc)
2091                         MANTYPE=$withval
2092                         ;;
2093                 *)
2094                         AC_MSG_ERROR(invalid man type: $withval)
2095                         ;;
2096                 esac
2097         ]
2098 )
2099 if test -z "$MANTYPE"; then
2100         TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
2101         AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
2102         if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
2103                 MANTYPE=doc
2104         elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
2105                 MANTYPE=man
2106         else
2107                 MANTYPE=cat
2108         fi
2109 fi
2110 AC_SUBST(MANTYPE)
2111 if test "$MANTYPE" = "doc"; then
2112         mansubdir=man;
2113 else
2114         mansubdir=$MANTYPE;
2115 fi
2116 AC_SUBST(mansubdir)
2117
2118 # Check whether to enable MD5 passwords
2119 MD5_MSG="no"
2120 AC_ARG_WITH(md5-passwords,
2121         [  --with-md5-passwords    Enable use of MD5 passwords],
2122         [
2123                 if test "x$withval" != "xno" ; then
2124                         AC_DEFINE(HAVE_MD5_PASSWORDS)
2125                         MD5_MSG="yes"
2126                 fi
2127         ]
2128 )
2129
2130 # Whether to disable shadow password support
2131 AC_ARG_WITH(shadow,
2132         [  --without-shadow        Disable shadow password support],
2133         [
2134                 if test "x$withval" = "xno" ; then
2135                         AC_DEFINE(DISABLE_SHADOW)
2136                         disable_shadow=yes
2137                 fi
2138         ]
2139 )
2140
2141 if test -z "$disable_shadow" ; then
2142         AC_MSG_CHECKING([if the systems has expire shadow information])
2143         AC_TRY_COMPILE(
2144         [
2145 #include <sys/types.h>
2146 #include <shadow.h>
2147         struct spwd sp;
2148         ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
2149         [ sp_expire_available=yes ], []
2150         )
2151
2152         if test "x$sp_expire_available" = "xyes" ; then
2153                 AC_MSG_RESULT(yes)
2154                 AC_DEFINE(HAS_SHADOW_EXPIRE)
2155         else
2156                 AC_MSG_RESULT(no)
2157         fi
2158 fi
2159
2160 # Use ip address instead of hostname in $DISPLAY
2161 if test ! -z "$IPADDR_IN_DISPLAY" ; then
2162         DISPLAY_HACK_MSG="yes"
2163         AC_DEFINE(IPADDR_IN_DISPLAY)
2164 else
2165         DISPLAY_HACK_MSG="no"
2166         AC_ARG_WITH(ipaddr-display,
2167                 [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
2168                 [
2169                         if test "x$withval" != "xno" ; then
2170                                 AC_DEFINE(IPADDR_IN_DISPLAY)
2171                                 DISPLAY_HACK_MSG="yes"
2172                         fi
2173                 ]
2174         )
2175 fi
2176
2177 dnl BSD systems use /etc/login.conf so --with-default-path= has no effect
2178 if test $ac_cv_func_login_getcapbool = "yes" -a \
2179         $ac_cv_header_login_cap_h = "yes" ; then
2180         USES_LOGIN_CONF=yes
2181 fi
2182 # Whether to mess with the default path
2183 SERVER_PATH_MSG="(default)"
2184 AC_ARG_WITH(default-path,
2185         [  --with-default-path=    Specify default \$PATH environment for server],
2186         [
2187                 if test "$USES_LOGIN_CONF" = "yes" ; then
2188                         AC_MSG_WARN([
2189 --with-default-path=PATH has no effect on this system.
2190 Edit /etc/login.conf instead.])
2191                 elif test "x$withval" != "xno" ; then
2192                         user_path="$withval"
2193                         SERVER_PATH_MSG="$withval"
2194                 fi
2195         ],
2196         [ if test "$USES_LOGIN_CONF" = "yes" ; then
2197         AC_MSG_WARN([Make sure the path to scp is in /etc/login.conf])
2198         else
2199         AC_TRY_RUN(
2200                 [
2201 /* find out what STDPATH is */
2202 #include <stdio.h>
2203 #ifdef HAVE_PATHS_H
2204 # include <paths.h>
2205 #endif
2206 #ifndef _PATH_STDPATH
2207 # ifdef _PATH_USERPATH  /* Irix */
2208 #  define _PATH_STDPATH _PATH_USERPATH
2209 # else
2210 #  define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
2211 # endif
2212 #endif
2213 #include <sys/types.h>
2214 #include <sys/stat.h>
2215 #include <fcntl.h>
2216 #define DATA "conftest.stdpath"
2217
2218 main()
2219 {
2220         FILE *fd;
2221         int rc;
2222
2223         fd = fopen(DATA,"w");
2224         if(fd == NULL)
2225                 exit(1);
2226
2227         if ((rc = fprintf(fd,"%s", _PATH_STDPATH)) < 0)
2228                 exit(1);
2229
2230         exit(0);
2231 }
2232                 ], [ user_path=`cat conftest.stdpath` ],
2233                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
2234                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ]
2235         )
2236 # make sure $bindir is in USER_PATH so scp will work
2237                 t_bindir=`eval echo ${bindir}`
2238                 case $t_bindir in
2239                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;;
2240                 esac
2241                 case $t_bindir in
2242                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;;
2243                 esac
2244                 echo $user_path | grep ":$t_bindir"  > /dev/null 2>&1
2245                 if test $? -ne 0  ; then
2246                         echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
2247                         if test $? -ne 0  ; then
2248                                 user_path=$user_path:$t_bindir
2249                                 AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
2250                         fi
2251                 fi
2252         fi ]
2253 )
2254 if test "$USES_LOGIN_CONF" != "yes" ; then
2255         AC_DEFINE_UNQUOTED(USER_PATH, "$user_path")
2256         AC_SUBST(user_path)
2257 fi
2258
2259 # Set superuser path separately to user path
2260 AC_ARG_WITH(superuser-path,
2261         [  --with-superuser-path=  Specify different path for super-user],
2262         [
2263                 if test "x$withval" != "xno" ; then
2264                         AC_DEFINE_UNQUOTED(SUPERUSER_PATH, "$withval")
2265                         superuser_path=$withval
2266                 fi
2267         ]
2268 )
2269
2270
2271 AC_MSG_CHECKING([if we need to convert IPv4 in IPv6-mapped addresses])
2272 IPV4_IN6_HACK_MSG="no"
2273 AC_ARG_WITH(4in6,
2274         [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
2275         [
2276                 if test "x$withval" != "xno" ; then
2277                         AC_MSG_RESULT(yes)
2278                         AC_DEFINE(IPV4_IN_IPV6)
2279                         IPV4_IN6_HACK_MSG="yes"
2280                 else
2281                         AC_MSG_RESULT(no)
2282                 fi
2283         ],[
2284                 if test "x$inet6_default_4in6" = "xyes"; then
2285                         AC_MSG_RESULT([yes (default)])
2286                         AC_DEFINE(IPV4_IN_IPV6)
2287                         IPV4_IN6_HACK_MSG="yes"
2288                 else
2289                         AC_MSG_RESULT([no (default)])
2290                 fi
2291         ]
2292 )
2293
2294 # Whether to enable BSD auth support
2295 BSD_AUTH_MSG=no
2296 AC_ARG_WITH(bsd-auth,
2297         [  --with-bsd-auth         Enable BSD auth support],
2298         [
2299                 if test "x$withval" != "xno" ; then
2300                         AC_DEFINE(BSD_AUTH)
2301                         BSD_AUTH_MSG=yes
2302                 fi
2303         ]
2304 )
2305
2306 # Where to place sshd.pid
2307 piddir=/var/run
2308 # make sure the directory exists
2309 if test ! -d $piddir ; then
2310         piddir=`eval echo ${sysconfdir}`
2311         case $piddir in
2312                 NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
2313         esac
2314 fi
2315
2316 AC_ARG_WITH(pid-dir,
2317         [  --with-pid-dir=PATH     Specify location of ssh.pid file],
2318         [
2319                 if test "x$withval" != "xno" ; then
2320                         piddir=$withval
2321                         if test ! -d $piddir ; then
2322                         AC_MSG_WARN([** no $piddir directory on this system **])
2323                         fi
2324                 fi
2325         ]
2326 )
2327
2328 AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
2329 AC_SUBST(piddir)
2330
2331 dnl allow user to disable some login recording features
2332 AC_ARG_ENABLE(lastlog,
2333         [  --disable-lastlog       disable use of lastlog even if detected [no]],
2334         [
2335                 if test "x$enableval" = "xno" ; then
2336                         AC_DEFINE(DISABLE_LASTLOG)
2337                 fi
2338         ]
2339 )
2340 AC_ARG_ENABLE(utmp,
2341         [  --disable-utmp          disable use of utmp even if detected [no]],
2342         [
2343                 if test "x$enableval" = "xno" ; then
2344                         AC_DEFINE(DISABLE_UTMP)
2345                 fi
2346         ]
2347 )
2348 AC_ARG_ENABLE(utmpx,
2349         [  --disable-utmpx         disable use of utmpx even if detected [no]],
2350         [
2351                 if test "x$enableval" = "xno" ; then
2352                         AC_DEFINE(DISABLE_UTMPX)
2353                 fi
2354         ]
2355 )
2356 AC_ARG_ENABLE(wtmp,
2357         [  --disable-wtmp          disable use of wtmp even if detected [no]],
2358         [
2359                 if test "x$enableval" = "xno" ; then
2360                         AC_DEFINE(DISABLE_WTMP)
2361                 fi
2362         ]
2363 )
2364 AC_ARG_ENABLE(wtmpx,
2365         [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
2366         [
2367                 if test "x$enableval" = "xno" ; then
2368                         AC_DEFINE(DISABLE_WTMPX)
2369                 fi
2370         ]
2371 )
2372 AC_ARG_ENABLE(libutil,
2373         [  --disable-libutil       disable use of libutil (login() etc.) [no]],
2374         [
2375                 if test "x$enableval" = "xno" ; then
2376                         AC_DEFINE(DISABLE_LOGIN)
2377                 fi
2378         ]
2379 )
2380 AC_ARG_ENABLE(pututline,
2381         [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
2382         [
2383                 if test "x$enableval" = "xno" ; then
2384                         AC_DEFINE(DISABLE_PUTUTLINE)
2385                 fi
2386         ]
2387 )
2388 AC_ARG_ENABLE(pututxline,
2389         [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
2390         [
2391                 if test "x$enableval" = "xno" ; then
2392                         AC_DEFINE(DISABLE_PUTUTXLINE)
2393                 fi
2394         ]
2395 )
2396 AC_ARG_WITH(lastlog,
2397   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
2398         [
2399                 if test "x$withval" = "xno" ; then
2400                         AC_DEFINE(DISABLE_LASTLOG)
2401                 else
2402                         conf_lastlog_location=$withval
2403                 fi
2404         ]
2405 )
2406
2407 dnl lastlog, [uw]tmpx? detection
2408 dnl  NOTE: set the paths in the platform section to avoid the
2409 dnl   need for command-line parameters
2410 dnl lastlog and [uw]tmp are subject to a file search if all else fails
2411
2412 dnl lastlog detection
2413 dnl  NOTE: the code itself will detect if lastlog is a directory
2414 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
2415 AC_TRY_COMPILE([
2416 #include <sys/types.h>
2417 #include <utmp.h>
2418 #ifdef HAVE_LASTLOG_H
2419 #  include <lastlog.h>
2420 #endif
2421 #ifdef HAVE_PATHS_H
2422 #  include <paths.h>
2423 #endif
2424 #ifdef HAVE_LOGIN_H
2425 # include <login.h>
2426 #endif
2427         ],
2428         [ char *lastlog = LASTLOG_FILE; ],
2429         [ AC_MSG_RESULT(yes) ],
2430         [
2431                 AC_MSG_RESULT(no)
2432                 AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
2433                 AC_TRY_COMPILE([
2434 #include <sys/types.h>
2435 #include <utmp.h>
2436 #ifdef HAVE_LASTLOG_H
2437 #  include <lastlog.h>
2438 #endif
2439 #ifdef HAVE_PATHS_H
2440 #  include <paths.h>
2441 #endif
2442                 ],
2443                 [ char *lastlog = _PATH_LASTLOG; ],
2444                 [ AC_MSG_RESULT(yes) ],
2445                 [
2446                         AC_MSG_RESULT(no)
2447                         system_lastlog_path=no
2448                 ])
2449         ]
2450 )
2451
2452 if test -z "$conf_lastlog_location"; then
2453         if test x"$system_lastlog_path" = x"no" ; then
2454                 for f in /var/log/lastlog /usr/adm/lastlog /var/adm/lastlog /etc/security/lastlog ; do
2455                                 if (test -d "$f" || test -f "$f") ; then
2456                                         conf_lastlog_location=$f
2457                                 fi
2458                 done
2459                 if test -z "$conf_lastlog_location"; then
2460                         AC_MSG_WARN([** Cannot find lastlog **])
2461                         dnl Don't define DISABLE_LASTLOG - that means we don't try wtmp/wtmpx
2462                 fi
2463         fi
2464 fi
2465
2466 if test -n "$conf_lastlog_location"; then
2467         AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location")
2468 fi
2469
2470 dnl utmp detection
2471 AC_MSG_CHECKING([if your system defines UTMP_FILE])
2472 AC_TRY_COMPILE([
2473 #include <sys/types.h>
2474 #include <utmp.h>
2475 #ifdef HAVE_PATHS_H
2476 #  include <paths.h>
2477 #endif
2478         ],
2479         [ char *utmp = UTMP_FILE; ],
2480         [ AC_MSG_RESULT(yes) ],
2481         [ AC_MSG_RESULT(no)
2482           system_utmp_path=no ]
2483 )
2484 if test -z "$conf_utmp_location"; then
2485         if test x"$system_utmp_path" = x"no" ; then
2486                 for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
2487                         if test -f $f ; then
2488                                 conf_utmp_location=$f
2489                         fi
2490                 done
2491                 if test -z "$conf_utmp_location"; then
2492                         AC_DEFINE(DISABLE_UTMP)
2493                 fi
2494         fi
2495 fi
2496 if test -n "$conf_utmp_location"; then
2497         AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location")
2498 fi
2499
2500 dnl wtmp detection
2501 AC_MSG_CHECKING([if your system defines WTMP_FILE])
2502 AC_TRY_COMPILE([
2503 #include <sys/types.h>
2504 #include <utmp.h>
2505 #ifdef HAVE_PATHS_H
2506 #  include <paths.h>
2507 #endif
2508         ],
2509         [ char *wtmp = WTMP_FILE; ],
2510         [ AC_MSG_RESULT(yes) ],
2511         [ AC_MSG_RESULT(no)
2512           system_wtmp_path=no ]
2513 )
2514 if test -z "$conf_wtmp_location"; then
2515         if test x"$system_wtmp_path" = x"no" ; then
2516                 for f in /usr/adm/wtmp /var/log/wtmp; do
2517                         if test -f $f ; then
2518                                 conf_wtmp_location=$f
2519                         fi
2520                 done
2521                 if test -z "$conf_wtmp_location"; then
2522                         AC_DEFINE(DISABLE_WTMP)
2523                 fi
2524         fi
2525 fi
2526 if test -n "$conf_wtmp_location"; then
2527         AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location")
2528 fi
2529
2530
2531 dnl utmpx detection - I don't know any system so perverse as to require
2532 dnl  utmpx, but not define UTMPX_FILE (ditto wtmpx.) No doubt it's out
2533 dnl  there, though.
2534 AC_MSG_CHECKING([if your system defines UTMPX_FILE])
2535 AC_TRY_COMPILE([
2536 #include <sys/types.h>
2537 #include <utmp.h>
2538 #ifdef HAVE_UTMPX_H
2539 #include <utmpx.h>
2540 #endif
2541 #ifdef HAVE_PATHS_H
2542 #  include <paths.h>
2543 #endif
2544         ],
2545         [ char *utmpx = UTMPX_FILE; ],
2546         [ AC_MSG_RESULT(yes) ],
2547         [ AC_MSG_RESULT(no)
2548           system_utmpx_path=no ]
2549 )
2550 if test -z "$conf_utmpx_location"; then
2551         if test x"$system_utmpx_path" = x"no" ; then
2552                 AC_DEFINE(DISABLE_UTMPX)
2553         fi
2554 else
2555         AC_DEFINE_UNQUOTED(CONF_UTMPX_FILE, "$conf_utmpx_location")
2556 fi
2557
2558 dnl wtmpx detection
2559 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
2560 AC_TRY_COMPILE([
2561 #include <sys/types.h>
2562 #include <utmp.h>
2563 #ifdef HAVE_UTMPX_H
2564 #include <utmpx.h>
2565 #endif
2566 #ifdef HAVE_PATHS_H
2567 #  include <paths.h>
2568 #endif
2569         ],
2570         [ char *wtmpx = WTMPX_FILE; ],
2571         [ AC_MSG_RESULT(yes) ],
2572         [ AC_MSG_RESULT(no)
2573           system_wtmpx_path=no ]
2574 )
2575 if test -z "$conf_wtmpx_location"; then
2576         if test x"$system_wtmpx_path" = x"no" ; then
2577                 AC_DEFINE(DISABLE_WTMPX)
2578         fi
2579 else
2580         AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location")
2581 fi
2582
2583
2584 if test ! -z "$blibpath" ; then
2585         LDFLAGS="$LDFLAGS $blibflags$blibpath"
2586         AC_MSG_WARN([Please check and edit blibpath in LDFLAGS in Makefile])
2587 fi
2588
2589 dnl remove pam and dl because they are in $LIBPAM
2590 if test "$PAM_MSG" = yes ; then
2591         LIBS=`echo $LIBS | sed 's/-lpam //'`
2592 fi
2593 if test "$ac_cv_lib_pam_pam_set_item" = yes ; then
2594         LIBS=`echo $LIBS | sed 's/-ldl //'`
2595 fi
2596
2597 AC_EXEEXT
2598 AC_CONFIG_FILES([Makefile openbsd-compat/Makefile scard/Makefile ssh_prng_cmds])
2599 AC_OUTPUT
2600
2601 # Print summary of options
2602
2603 # Someone please show me a better way :)
2604 A=`eval echo ${prefix}` ; A=`eval echo ${A}`
2605 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
2606 C=`eval echo ${sbindir}` ; C=`eval echo ${C}`
2607 D=`eval echo ${sysconfdir}` ; D=`eval echo ${D}`
2608 E=`eval echo ${libexecdir}/ssh-askpass` ; E=`eval echo ${E}`
2609 F=`eval echo ${mandir}/${mansubdir}X` ; F=`eval echo ${F}`
2610 G=`eval echo ${piddir}` ; G=`eval echo ${G}`
2611 H=`eval echo ${PRIVSEP_PATH}` ; H=`eval echo ${H}`
2612 I=`eval echo ${user_path}` ; I=`eval echo ${I}`
2613 J=`eval echo ${superuser_path}` ; J=`eval echo ${J}`
2614
2615 echo ""
2616 echo "OpenSSH has been configured with the following options:"
2617 echo "                     User binaries: $B"
2618 echo "                   System binaries: $C"
2619 echo "               Configuration files: $D"
2620 echo "                   Askpass program: $E"
2621 echo "                      Manual pages: $F"
2622 echo "                          PID file: $G"
2623 echo "  Privilege separation chroot path: $H"
2624 if test "$USES_LOGIN_CONF" = "yes" ; then
2625 echo "   At runtime, sshd will use the path defined in /etc/login.conf"
2626 else
2627 echo "            sshd default user PATH: $I"
2628 fi
2629 if test ! -z "$superuser_path" ; then
2630 echo "          sshd superuser user PATH: $J"
2631 fi
2632 echo "                    Manpage format: $MANTYPE"
2633 echo "                       DNS support: $DNS_MSG"
2634 echo "                       PAM support: $PAM_MSG"
2635 echo "                KerberosIV support: $KRB4_MSG"
2636 echo "                 KerberosV support: $KRB5_MSG"
2637 echo "                 Smartcard support: $SCARD_MSG"
2638 echo "                       AFS support: $AFS_MSG"
2639 echo "                     S/KEY support: $SKEY_MSG"
2640 echo "              TCP Wrappers support: $TCPW_MSG"
2641 echo "              MD5 password support: $MD5_MSG"
2642 echo "       IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
2643 echo "           Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
2644 echo "                  BSD Auth support: $BSD_AUTH_MSG"
2645 echo "              Random number source: $RAND_MSG"
2646 if test ! -z "$USE_RAND_HELPER" ; then
2647 echo "     ssh-rand-helper collects from: $RAND_HELPER_MSG"
2648 fi
2649
2650 echo ""
2651
2652 echo "              Host: ${host}"
2653 echo "          Compiler: ${CC}"
2654 echo "    Compiler flags: ${CFLAGS}"
2655 echo "Preprocessor flags: ${CPPFLAGS}"
2656 echo "      Linker flags: ${LDFLAGS}"
2657 echo "         Libraries: ${LIBWRAP} ${LIBPAM} ${LIBS}"
2658
2659 echo ""
2660
2661 if test "x$PAM_MSG" = "xyes" ; then
2662         echo "PAM is enabled. You may need to install a PAM control file "
2663         echo "for sshd, otherwise password authentication may fail. "
2664         echo "Example PAM control files can be found in the contrib/ "
2665         echo "subdirectory"
2666         echo ""
2667 fi
2668
2669 if test ! -z "$RAND_HELPER_CMDHASH" ; then
2670         echo "WARNING: you are using the builtin random number collection "
2671         echo "service. Please read WARNING.RNG and request that your OS "
2672         echo "vendor includes kernel-based random number collection in "
2673         echo "future versions of your OS."
2674         echo ""
2675 fi
2676