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 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 prototypes are defined for these before using them.
 692 AC_CHECK_DECL(strsep, [AC_CHECK_FUNCS(strsep)])
 693 AC_CHECK_DECL(getrusage, [AC_CHECK_FUNCS(getrusage)])
 694
 695 dnl IRIX and Solaris 2.5.1 have dirname() in libgen
 696 AC_CHECK_FUNCS(dirname, [AC_CHECK_HEADERS(libgen.h)] ,[
 697         AC_CHECK_LIB(gen, dirname,[
 698                 AC_CACHE_CHECK([for broken dirname],
 699                         ac_cv_have_broken_dirname, [
 700                         save_LIBS="$LIBS"
 701                         LIBS="$LIBS -lgen"
 702                         AC_TRY_RUN(
 703                                 [
 704 #include <libgen.h>
 705 #include <string.h>
 706
 707 int main(int argc, char **argv) {
 708     char *s, buf[32];
 709
 710     strncpy(buf,"/etc", 32);
 711     s = dirname(buf);
 712     if (!s || strncmp(s, "/", 32) != 0) {
 713         exit(1);
 714     } else {
 715         exit(0);
 716     }
 717 }
 718                                 ],
 719                                 [ ac_cv_have_broken_dirname="no" ],
 720                                 [ ac_cv_have_broken_dirname="yes" ]
 721                         )
 722                         LIBS="$save_LIBS"
 723                 ])
 724                 if test "x$ac_cv_have_broken_dirname" = "xno" ; then
 725                         LIBS="$LIBS -lgen"
 726                         AC_DEFINE(HAVE_DIRNAME)
 727                         AC_CHECK_HEADERS(libgen.h)
 728                 fi
 729         ])
 730 ])
 731
 732 dnl    Checks for time functions
 733 AC_CHECK_FUNCS(gettimeofday time)
 734 dnl    Checks for utmp functions
 735 AC_CHECK_FUNCS(endutent getutent getutid getutline pututline setutent)
 736 AC_CHECK_FUNCS(utmpname)
 737 dnl    Checks for utmpx functions
 738 AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
 739 AC_CHECK_FUNCS(setutxent utmpxname)
 740
 741 AC_CHECK_FUNC(daemon,
 742         [AC_DEFINE(HAVE_DAEMON)],
 743         [AC_CHECK_LIB(bsd, daemon, [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 744 )
 745
 746 AC_CHECK_FUNC(getpagesize,
 747         [AC_DEFINE(HAVE_GETPAGESIZE)],
 748         [AC_CHECK_LIB(ucb, getpagesize, [LIBS="$LIBS -lucb"; AC_DEFINE(HAVE_GETPAGESIZE)])]
 749 )
 750
 751 # Check for broken snprintf
 752 if test "x$ac_cv_func_snprintf" = "xyes" ; then
 753         AC_MSG_CHECKING([whether snprintf correctly terminates long strings])
 754         AC_TRY_RUN(
 755                 [
 756 #include <stdio.h>
 757 int main(void){char b[5];snprintf(b,5,"123456789");exit(b[4]!='\0');}
 758                 ],
 759                 [AC_MSG_RESULT(yes)],
 760                 [
 761                         AC_MSG_RESULT(no)
 762                         AC_DEFINE(BROKEN_SNPRINTF)
 763                         AC_MSG_WARN([****** Your snprintf() function is broken, complain to your vendor])
 764                 ]
 765         )
 766 fi
 767
 768 dnl see whether mkstemp() requires XXXXXX
 769 if test "x$ac_cv_func_mkdtemp" = "xyes" ; then
 770 AC_MSG_CHECKING([for (overly) strict mkstemp])
 771 AC_TRY_RUN(
 772         [
 773 #include <stdlib.h>
 774 main() { char template[]="conftest.mkstemp-test";
 775 if (mkstemp(template) == -1)
 776         exit(1);
 777 unlink(template); exit(0);
 778 }
 779         ],
 780         [
 781                 AC_MSG_RESULT(no)
 782         ],
 783         [
 784                 AC_MSG_RESULT(yes)
 785                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 786         ],
 787         [
 788                 AC_MSG_RESULT(yes)
 789                 AC_DEFINE(HAVE_STRICT_MKSTEMP)
 790         ]
 791 )
 792 fi
 793
 794 AC_FUNC_GETPGRP
 795
 796 # Check for PAM libs
 797 PAM_MSG="no"
 798 AC_ARG_WITH(pam,
 799         [  --with-pam              Enable PAM support ],
 800         [
 801                 if test "x$withval" != "xno" ; then
 802                         if test "x$ac_cv_header_security_pam_appl_h" != "xyes" ; then
 803                                 AC_MSG_ERROR([PAM headers not found])
 804                         fi
 805
 806                         AC_CHECK_LIB(dl, dlopen, , )
 807                         AC_CHECK_LIB(pam, pam_set_item, , AC_MSG_ERROR([*** libpam missing]))
 808                         AC_CHECK_FUNCS(pam_getenvlist)
 809
 810                         disable_shadow=yes
 811                         PAM_MSG="yes"
 812
 813                         AC_DEFINE(USE_PAM)
 814                         if test $ac_cv_lib_dl_dlopen = yes; then
 815                                 LIBPAM="-lpam -ldl"
 816                         else
 817                                 LIBPAM="-lpam"
 818                         fi
 819                         AC_SUBST(LIBPAM)
 820                 fi
 821         ]
 822 )
 823
 824 # Check for older PAM
 825 if test "x$PAM_MSG" = "xyes" ; then
 826         # Check PAM strerror arguments (old PAM)
 827         AC_MSG_CHECKING([whether pam_strerror takes only one argument])
 828         AC_TRY_COMPILE(
 829                 [
 830 #include <stdlib.h>
 831 #include <security/pam_appl.h>
 832                 ],
 833                 [(void)pam_strerror((pam_handle_t *)NULL, -1);],
 834                 [AC_MSG_RESULT(no)],
 835                 [
 836                         AC_DEFINE(HAVE_OLD_PAM)
 837                         AC_MSG_RESULT(yes)
 838                         PAM_MSG="yes (old library)"
 839                 ]
 840         )
 841 fi
 842
 843 # Some systems want crypt() from libcrypt, *not* the version in OpenSSL,
 844 # because the system crypt() is more featureful.
 845 if test "x$check_for_libcrypt_before" = "x1"; then
 846         AC_CHECK_LIB(crypt, crypt)
 847 fi
 848
 849 # Search for OpenSSL
 850 saved_CPPFLAGS="$CPPFLAGS"
 851 saved_LDFLAGS="$LDFLAGS"
 852 AC_ARG_WITH(ssl-dir,
 853         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
 854         [
 855                 if test "x$withval" != "xno" ; then
 856                         if test -d "$withval/lib"; then
 857                                 if test -n "${need_dash_r}"; then
 858                                         LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 859                                 else
 860                                         LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 861                                 fi
 862                         else
 863                                 if test -n "${need_dash_r}"; then
 864                                         LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 865                                 else
 866                                         LDFLAGS="-L${withval} ${LDFLAGS}"
 867                                 fi
 868                         fi
 869                         if test -d "$withval/include"; then
 870                                 CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 871                         else
 872                                 CPPFLAGS="-I${withval} ${CPPFLAGS}"
 873                         fi
 874                 fi
 875         ]
 876 )
 877 LIBS="$LIBS -lcrypto"
 878 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 879         [
 880                 dnl Check default openssl install dir
 881                 if test -n "${need_dash_r}"; then
 882                         LDFLAGS="-L/usr/local/ssl/lib -R/usr/local/ssl/lib ${saved_LDFLAGS}"
 883                 else
 884                         LDFLAGS="-L/usr/local/ssl/lib ${saved_LDFLAGS}"
 885                 fi
 886                 CPPFLAGS="-I/usr/local/ssl/include ${saved_CPPFLAGS}"
 887                 AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL),
 888                         [
 889                                 AC_MSG_ERROR([*** Can't find recent OpenSSL libcrypto (see config.log for details) ***])
 890                         ]
 891                 )
 892         ]
 893 )
 894
 895 # Determine OpenSSL header version
 896 AC_MSG_CHECKING([OpenSSL header version])
 897 AC_TRY_RUN(
 898         [
 899 #include <stdio.h>
 900 #include <string.h>
 901 #include <openssl/opensslv.h>
 902 #define DATA "conftest.sslincver"
 903 int main(void) {
 904         FILE *fd;
 905         int rc;
 906
 907         fd = fopen(DATA,"w");
 908         if(fd == NULL)
 909                 exit(1);
 910
 911         if ((rc = fprintf(fd ,"%x (%s)\n", OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT)) <0)
 912                 exit(1);
 913
 914         exit(0);
 915 }
 916         ],
 917         [
 918                 ssl_header_ver=`cat conftest.sslincver`
 919                 AC_MSG_RESULT($ssl_header_ver)
 920         ],
 921         [
 922                 AC_MSG_RESULT(not found)
 923                 AC_MSG_ERROR(OpenSSL version header not found.)
 924         ]
 925 )
 926
 927 # Determine OpenSSL library version
 928 AC_MSG_CHECKING([OpenSSL library version])
 929 AC_TRY_RUN(
 930         [
 931 #include <stdio.h>
 932 #include <string.h>
 933 #include <openssl/opensslv.h>
 934 #include <openssl/crypto.h>
 935 #define DATA "conftest.ssllibver"
 936 int main(void) {
 937         FILE *fd;
 938         int rc;
 939
 940         fd = fopen(DATA,"w");
 941         if(fd == NULL)
 942                 exit(1);
 943
 944         if ((rc = fprintf(fd ,"%x (%s)\n", SSLeay(), SSLeay_version(SSLEAY_VERSION))) <0)
 945                 exit(1);
 946
 947         exit(0);
 948 }
 949         ],
 950         [
 951                 ssl_library_ver=`cat conftest.ssllibver`
 952                 AC_MSG_RESULT($ssl_library_ver)
 953         ],
 954         [
 955                 AC_MSG_RESULT(not found)
 956                 AC_MSG_ERROR(OpenSSL library not found.)
 957         ]
 958 )
 959
 960 # Sanity check OpenSSL headers
 961 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
 962 AC_TRY_RUN(
 963         [
 964 #include <string.h>
 965 #include <openssl/opensslv.h>
 966 int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
 967         ],
 968         [
 969                 AC_MSG_RESULT(yes)
 970         ],
 971         [
 972                 AC_MSG_RESULT(no)
 973                 AC_MSG_ERROR([Your OpenSSL headers do not match your library.
 974 Check config.log for details.
 975 Also see contrib/findssl.sh for help identifying header/library mismatches.])
 976         ]
 977 )
 978
 979 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
 980 # version in OpenSSL. Skip this for PAM
 981 if test "x$check_for_libcrypt_later" = "x1"; then
 982         AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
 983 fi
 984
 985
 986 ### Configure cryptographic random number support
 987
 988 # Check wheter OpenSSL seeds itself
 989 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
 990 AC_TRY_RUN(
 991         [
 992 #include <string.h>
 993 #include <openssl/rand.h>
 994 int main(void) { exit(RAND_status() == 1 ? 0 : 1); }
 995         ],
 996         [
 997                 OPENSSL_SEEDS_ITSELF=yes
 998                 AC_MSG_RESULT(yes)
 999         ],
1000         [
1001                 AC_MSG_RESULT(no)
1002                 # Default to use of the rand helper if OpenSSL doesn't
1003                 # seed itself
1004                 USE_RAND_HELPER=yes
1005         ]
1006 )
1007
1008
1009 # Do we want to force the use of the rand helper?
1010 AC_ARG_WITH(rand-helper,
1011         [  --with-rand-helper      Use subprocess to gather strong randomness ],
1012         [
1013                 if test "x$withval" = "xno" ; then
1014                         # Force use of OpenSSL's internal RNG, even if
1015                         # the previous test showed it to be unseeded.
1016                         if test -z "$OPENSSL_SEEDS_ITSELF" ; then
1017                                 AC_MSG_WARN([*** Forcing use of OpenSSL's non-self-seeding PRNG])
1018                                 OPENSSL_SEEDS_ITSELF=yes
1019                                 USE_RAND_HELPER=""
1020                         fi
1021                 else
1022                         USE_RAND_HELPER=yes
1023                 fi
1024         ],
1025 )
1026
1027 # Which randomness source do we use?
1028 if test ! -z "$OPENSSL_SEEDS_ITSELF" -a -z "$USE_RAND_HELPER" ; then
1029         # OpenSSL only
1030         AC_DEFINE(OPENSSL_PRNG_ONLY)
1031         RAND_MSG="OpenSSL internal ONLY"
1032         INSTALL_SSH_RAND_HELPER=""
1033 elif test ! -z "$USE_RAND_HELPER" ; then
1034         # install rand helper
1035         RAND_MSG="ssh-rand-helper"
1036         INSTALL_SSH_RAND_HELPER="yes"
1037 fi
1038 AC_SUBST(INSTALL_SSH_RAND_HELPER)
1039
1040 ### Configuration of ssh-rand-helper
1041
1042 # PRNGD TCP socket
1043 AC_ARG_WITH(prngd-port,
1044         [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
1045         [
1046                 case "$withval" in
1047                 no)
1048                         withval=""
1049                         ;;
1050                 [[0-9]]*)
1051                         ;;
1052                 *)
1053                         AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
1054                         ;;
1055                 esac
1056                 if test ! -z "$withval" ; then
1057                         PRNGD_PORT="$withval"
1058                         AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT)
1059                 fi
1060         ]
1061 )
1062
1063 # PRNGD Unix domain socket
1064 AC_ARG_WITH(prngd-socket,
1065         [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
1066         [
1067                 case "$withval" in
1068                 yes)
1069                         withval="/var/run/egd-pool"
1070                         ;;
1071                 no)
1072                         withval=""
1073                         ;;
1074                 /*)
1075                         ;;
1076                 *)
1077                         AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
1078                         ;;
1079                 esac
1080
1081                 if test ! -z "$withval" ; then
1082                         if test ! -z "$PRNGD_PORT" ; then
1083                                 AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
1084                         fi
1085                         if test ! -r "$withval" ; then
1086                                 AC_MSG_WARN(Entropy socket is not readable)
1087                         fi
1088                         PRNGD_SOCKET="$withval"
1089                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1090                 fi
1091         ],
1092         [
1093                 # Check for existing socket only if we don't have a random device already
1094                 if test "$USE_RAND_HELPER" = yes ; then
1095                         AC_MSG_CHECKING(for PRNGD/EGD socket)
1096                         # Insert other locations here
1097                         for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
1098                                 if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
1099                                         PRNGD_SOCKET="$sock"
1100                                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
1101                                         break;
1102                                 fi
1103                         done
1104                         if test ! -z "$PRNGD_SOCKET" ; then
1105                                 AC_MSG_RESULT($PRNGD_SOCKET)
1106                         else
1107                                 AC_MSG_RESULT(not found)
1108                         fi
1109                 fi
1110         ]
1111 )
1112
1113 # Change default command timeout for hashing entropy source
1114 entropy_timeout=200
1115 AC_ARG_WITH(entropy-timeout,
1116         [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
1117         [
1118                 if test "x$withval" != "xno" ; then
1119                         entropy_timeout=$withval
1120                 fi
1121         ]
1122 )
1123 AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout)
1124
1125 SSH_PRIVSEP_USER=sshd
1126 AC_ARG_WITH(privsep-user,
1127         [  --with-privsep-user=user Specify non-privileged user for privilege separation],
1128         [
1129                 if test -n "$withval"; then
1130                         SSH_PRIVSEP_USER=$withval
1131                 fi
1132         ]
1133 )
1134 AC_DEFINE_UNQUOTED(SSH_PRIVSEP_USER, "$SSH_PRIVSEP_USER")
1135 AC_SUBST(SSH_PRIVSEP_USER)
1136
1137 # We do this little dance with the search path to insure
1138 # that programs that we select for use by installed programs
1139 # (which may be run by the super-user) come from trusted
1140 # locations before they come from the user's private area.
1141 # This should help avoid accidentally configuring some
1142 # random version of a program in someone's personal bin.
1143
1144 OPATH=$PATH
1145 PATH=/bin:/usr/bin
1146 test -h /bin 2> /dev/null && PATH=/usr/bin
1147 test -d /sbin && PATH=$PATH:/sbin
1148 test -d /usr/sbin && PATH=$PATH:/usr/sbin
1149 PATH=$PATH:/etc:$OPATH
1150
1151 # These programs are used by the command hashing source to gather entropy
1152 OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
1153 OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
1154 OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
1155 OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
1156 OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
1157 OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
1158 OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
1159 OSSH_PATH_ENTROPY_PROG(PROG_W, w)
1160 OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
1161 OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
1162 OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
1163 OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
1164 OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
1165 OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
1166 OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
1167 OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
1168 # restore PATH
1169 PATH=$OPATH
1170
1171 # Where does ssh-rand-helper get its randomness from?
1172 INSTALL_SSH_PRNG_CMDS=""
1173 if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
1174         if test ! -z "$PRNGD_PORT" ; then
1175                 RAND_HELPER_MSG="TCP localhost:$PRNGD_PORT"
1176         elif test ! -z "$PRNGD_SOCKET" ; then
1177                 RAND_HELPER_MSG="Unix domain socket \"$PRNGD_SOCKET\""
1178         else
1179                 RAND_HELPER_MSG="Command hashing (timeout $entropy_timeout)"
1180                 RAND_HELPER_CMDHASH=yes
1181                 INSTALL_SSH_PRNG_CMDS="yes"
1182         fi
1183 fi
1184 AC_SUBST(INSTALL_SSH_PRNG_CMDS)
1185
1186
1187 # Cheap hack to ensure NEWS-OS libraries are arranged right.
1188 if test ! -z "$SONY" ; then
1189   LIBS="$LIBS -liberty";
1190 fi
1191
1192 # Checks for data types
1193 AC_CHECK_SIZEOF(char, 1)
1194 AC_CHECK_SIZEOF(short int, 2)
1195 AC_CHECK_SIZEOF(int, 4)
1196 AC_CHECK_SIZEOF(long int, 4)
1197 AC_CHECK_SIZEOF(long long int, 8)
1198
1199 # Sanity check long long for some platforms (AIX)
1200 if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
1201         ac_cv_sizeof_long_long_int=0
1202 fi
1203
1204 # More checks for data types
1205 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
1206         AC_TRY_COMPILE(
1207                 [ #include <sys/types.h> ],
1208                 [ u_int a; a = 1;],
1209                 [ ac_cv_have_u_int="yes" ],
1210                 [ ac_cv_have_u_int="no" ]
1211         )
1212 ])
1213 if test "x$ac_cv_have_u_int" = "xyes" ; then
1214         AC_DEFINE(HAVE_U_INT)
1215         have_u_int=1
1216 fi
1217
1218 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
1219         AC_TRY_COMPILE(
1220                 [ #include <sys/types.h> ],
1221                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1222                 [ ac_cv_have_intxx_t="yes" ],
1223                 [ ac_cv_have_intxx_t="no" ]
1224         )
1225 ])
1226 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
1227         AC_DEFINE(HAVE_INTXX_T)
1228         have_intxx_t=1
1229 fi
1230
1231 if (test -z "$have_intxx_t" && \
1232            test "x$ac_cv_header_stdint_h" = "xyes")
1233 then
1234     AC_MSG_CHECKING([for intXX_t types in stdint.h])
1235         AC_TRY_COMPILE(
1236                 [ #include <stdint.h> ],
1237                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1238                 [
1239                         AC_DEFINE(HAVE_INTXX_T)
1240                         AC_MSG_RESULT(yes)
1241                 ],
1242                 [ AC_MSG_RESULT(no) ]
1243         )
1244 fi
1245
1246 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
1247         AC_TRY_COMPILE(
1248                 [
1249 #include <sys/types.h>
1250 #ifdef HAVE_STDINT_H
1251 # include <stdint.h>
1252 #endif
1253 #include <sys/socket.h>
1254 #ifdef HAVE_SYS_BITYPES_H
1255 # include <sys/bitypes.h>
1256 #endif
1257                 ],
1258                 [ int64_t a; a = 1;],
1259                 [ ac_cv_have_int64_t="yes" ],
1260                 [ ac_cv_have_int64_t="no" ]
1261         )
1262 ])
1263 if test "x$ac_cv_have_int64_t" = "xyes" ; then
1264         AC_DEFINE(HAVE_INT64_T)
1265 fi
1266
1267 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
1268         AC_TRY_COMPILE(
1269                 [ #include <sys/types.h> ],
1270                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1271                 [ ac_cv_have_u_intxx_t="yes" ],
1272                 [ ac_cv_have_u_intxx_t="no" ]
1273         )
1274 ])
1275 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
1276         AC_DEFINE(HAVE_U_INTXX_T)
1277         have_u_intxx_t=1
1278 fi
1279
1280 if test -z "$have_u_intxx_t" ; then
1281     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
1282         AC_TRY_COMPILE(
1283                 [ #include <sys/socket.h> ],
1284                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1285                 [
1286                         AC_DEFINE(HAVE_U_INTXX_T)
1287                         AC_MSG_RESULT(yes)
1288                 ],
1289                 [ AC_MSG_RESULT(no) ]
1290         )
1291 fi
1292
1293 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
1294         AC_TRY_COMPILE(
1295                 [ #include <sys/types.h> ],
1296                 [ u_int64_t a; a = 1;],
1297                 [ ac_cv_have_u_int64_t="yes" ],
1298                 [ ac_cv_have_u_int64_t="no" ]
1299         )
1300 ])
1301 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
1302         AC_DEFINE(HAVE_U_INT64_T)
1303         have_u_int64_t=1
1304 fi
1305
1306 if test -z "$have_u_int64_t" ; then
1307     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
1308         AC_TRY_COMPILE(
1309                 [ #include <sys/bitypes.h> ],
1310                 [ u_int64_t a; a = 1],
1311                 [
1312                         AC_DEFINE(HAVE_U_INT64_T)
1313                         AC_MSG_RESULT(yes)
1314                 ],
1315                 [ AC_MSG_RESULT(no) ]
1316         )
1317 fi
1318
1319 if test -z "$have_u_intxx_t" ; then
1320         AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
1321                 AC_TRY_COMPILE(
1322                         [
1323 #include <sys/types.h>
1324                         ],
1325                         [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
1326                         [ ac_cv_have_uintxx_t="yes" ],
1327                         [ ac_cv_have_uintxx_t="no" ]
1328                 )
1329         ])
1330         if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
1331                 AC_DEFINE(HAVE_UINTXX_T)
1332         fi
1333 fi
1334
1335 if test -z "$have_uintxx_t" ; then
1336     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
1337         AC_TRY_COMPILE(
1338                 [ #include <stdint.h> ],
1339                 [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
1340                 [
1341                         AC_DEFINE(HAVE_UINTXX_T)
1342                         AC_MSG_RESULT(yes)
1343                 ],
1344                 [ AC_MSG_RESULT(no) ]
1345         )
1346 fi
1347
1348 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
1349            test "x$ac_cv_header_sys_bitypes_h" = "xyes")
1350 then
1351         AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
1352         AC_TRY_COMPILE(
1353                 [
1354 #include <sys/bitypes.h>
1355                 ],
1356                 [
1357                         int8_t a; int16_t b; int32_t c;
1358                         u_int8_t e; u_int16_t f; u_int32_t g;
1359                         a = b = c = e = f = g = 1;
1360                 ],
1361                 [
1362                         AC_DEFINE(HAVE_U_INTXX_T)
1363                         AC_DEFINE(HAVE_INTXX_T)
1364                         AC_MSG_RESULT(yes)
1365                 ],
1366                 [AC_MSG_RESULT(no)]
1367         )
1368 fi
1369
1370
1371 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
1372         AC_TRY_COMPILE(
1373                 [
1374 #include <sys/types.h>
1375                 ],
1376                 [ u_char foo; foo = 125; ],
1377                 [ ac_cv_have_u_char="yes" ],
1378                 [ ac_cv_have_u_char="no" ]
1379         )
1380 ])
1381 if test "x$ac_cv_have_u_char" = "xyes" ; then
1382         AC_DEFINE(HAVE_U_CHAR)
1383 fi
1384
1385 TYPE_SOCKLEN_T
1386
1387 AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
1388
1389 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
1390         AC_TRY_COMPILE(
1391                 [
1392 #include <sys/types.h>
1393                 ],
1394                 [ size_t foo; foo = 1235; ],
1395                 [ ac_cv_have_size_t="yes" ],
1396                 [ ac_cv_have_size_t="no" ]
1397         )
1398 ])
1399 if test "x$ac_cv_have_size_t" = "xyes" ; then
1400         AC_DEFINE(HAVE_SIZE_T)
1401 fi
1402
1403 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
1404         AC_TRY_COMPILE(
1405                 [
1406 #include <sys/types.h>
1407                 ],
1408                 [ ssize_t foo; foo = 1235; ],
1409                 [ ac_cv_have_ssize_t="yes" ],
1410                 [ ac_cv_have_ssize_t="no" ]
1411         )
1412 ])
1413 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
1414         AC_DEFINE(HAVE_SSIZE_T)
1415 fi
1416
1417 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
1418         AC_TRY_COMPILE(
1419                 [
1420 #include <time.h>
1421                 ],
1422                 [ clock_t foo; foo = 1235; ],
1423                 [ ac_cv_have_clock_t="yes" ],
1424                 [ ac_cv_have_clock_t="no" ]
1425         )
1426 ])
1427 if test "x$ac_cv_have_clock_t" = "xyes" ; then
1428         AC_DEFINE(HAVE_CLOCK_T)
1429 fi
1430
1431 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
1432         AC_TRY_COMPILE(
1433                 [
1434 #include <sys/types.h>
1435 #include <sys/socket.h>
1436                 ],
1437                 [ sa_family_t foo; foo = 1235; ],
1438                 [ ac_cv_have_sa_family_t="yes" ],
1439                 [ AC_TRY_COMPILE(
1440                   [
1441 #include <sys/types.h>
1442 #include <sys/socket.h>
1443 #include <netinet/in.h>
1444                 ],
1445                 [ sa_family_t foo; foo = 1235; ],
1446                 [ ac_cv_have_sa_family_t="yes" ],
1447
1448                 [ ac_cv_have_sa_family_t="no" ]
1449         )]
1450         )
1451 ])
1452 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
1453         AC_DEFINE(HAVE_SA_FAMILY_T)
1454 fi
1455
1456 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
1457         AC_TRY_COMPILE(
1458                 [
1459 #include <sys/types.h>
1460                 ],
1461                 [ pid_t foo; foo = 1235; ],
1462                 [ ac_cv_have_pid_t="yes" ],
1463                 [ ac_cv_have_pid_t="no" ]
1464         )
1465 ])
1466 if test "x$ac_cv_have_pid_t" = "xyes" ; then
1467         AC_DEFINE(HAVE_PID_T)
1468 fi
1469
1470 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
1471         AC_TRY_COMPILE(
1472                 [
1473 #include <sys/types.h>
1474                 ],
1475                 [ mode_t foo; foo = 1235; ],
1476                 [ ac_cv_have_mode_t="yes" ],
1477                 [ ac_cv_have_mode_t="no" ]
1478         )
1479 ])
1480 if test "x$ac_cv_have_mode_t" = "xyes" ; then
1481         AC_DEFINE(HAVE_MODE_T)
1482 fi
1483
1484
1485 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
1486         AC_TRY_COMPILE(
1487                 [
1488 #include <sys/types.h>
1489 #include <sys/socket.h>
1490                 ],
1491                 [ struct sockaddr_storage s; ],
1492                 [ ac_cv_have_struct_sockaddr_storage="yes" ],
1493                 [ ac_cv_have_struct_sockaddr_storage="no" ]
1494         )
1495 ])
1496 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
1497         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
1498 fi
1499
1500 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
1501         AC_TRY_COMPILE(
1502                 [
1503 #include <sys/types.h>
1504 #include <netinet/in.h>
1505                 ],
1506                 [ struct sockaddr_in6 s; s.sin6_family = 0; ],
1507                 [ ac_cv_have_struct_sockaddr_in6="yes" ],
1508                 [ ac_cv_have_struct_sockaddr_in6="no" ]
1509         )
1510 ])
1511 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
1512         AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
1513 fi
1514
1515 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
1516         AC_TRY_COMPILE(
1517                 [
1518 #include <sys/types.h>
1519 #include <netinet/in.h>
1520                 ],
1521                 [ struct in6_addr s; s.s6_addr[0] = 0; ],
1522                 [ ac_cv_have_struct_in6_addr="yes" ],
1523                 [ ac_cv_have_struct_in6_addr="no" ]
1524         )
1525 ])
1526 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
1527         AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
1528 fi
1529
1530 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
1531         AC_TRY_COMPILE(
1532                 [
1533 #include <sys/types.h>
1534 #include <sys/socket.h>
1535 #include <netdb.h>
1536                 ],
1537                 [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
1538                 [ ac_cv_have_struct_addrinfo="yes" ],
1539                 [ ac_cv_have_struct_addrinfo="no" ]
1540         )
1541 ])
1542 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
1543         AC_DEFINE(HAVE_STRUCT_ADDRINFO)
1544 fi
1545
1546 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
1547         AC_TRY_COMPILE(
1548                 [ #include <sys/time.h> ],
1549                 [ struct timeval tv; tv.tv_sec = 1;],
1550                 [ ac_cv_have_struct_timeval="yes" ],
1551                 [ ac_cv_have_struct_timeval="no" ]
1552         )
1553 ])
1554 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
1555         AC_DEFINE(HAVE_STRUCT_TIMEVAL)
1556         have_struct_timeval=1
1557 fi
1558
1559 AC_CHECK_TYPES(struct timespec)
1560
1561 # We need int64_t or else certian parts of the compile will fail.
1562 if test "x$ac_cv_have_int64_t" = "xno" -a \
1563         "x$ac_cv_sizeof_long_int" != "x8" -a \
1564         "x$ac_cv_sizeof_long_long_int" = "x0" ; then
1565         echo "OpenSSH requires int64_t support.  Contact your vendor or install"
1566         echo "an alternative compiler (I.E., GCC) before continuing."
1567         echo ""
1568         exit 1;
1569 else
1570 dnl test snprintf (broken on SCO w/gcc)
1571         AC_TRY_RUN(
1572                 [
1573 #include <stdio.h>
1574 #include <string.h>
1575 #ifdef HAVE_SNPRINTF
1576 main()
1577 {
1578         char buf[50];
1579         char expected_out[50];
1580         int mazsize = 50 ;
1581 #if (SIZEOF_LONG_INT == 8)
1582         long int num = 0x7fffffffffffffff;
1583 #else
1584         long long num = 0x7fffffffffffffffll;
1585 #endif
1586         strcpy(expected_out, "9223372036854775807");
1587         snprintf(buf, mazsize, "%lld", num);
1588         if(strcmp(buf, expected_out) != 0)
1589                 exit(1);
1590         exit(0);
1591 }
1592 #else
1593 main() { exit(0); }
1594 #endif
1595                 ], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ]
1596         )
1597 fi
1598
1599 dnl Checks for structure members
1600 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
1601 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
1602 OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
1603 OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
1604 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
1605 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
1606 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
1607 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
1608 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
1609 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
1610 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
1611 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
1612 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
1613 OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
1614 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
1615 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
1616 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
1617
1618 AC_CHECK_MEMBERS([struct stat.st_blksize])
1619
1620 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
1621                 ac_cv_have_ss_family_in_struct_ss, [
1622         AC_TRY_COMPILE(
1623                 [
1624 #include <sys/types.h>
1625 #include <sys/socket.h>
1626                 ],
1627                 [ struct sockaddr_storage s; s.ss_family = 1; ],
1628                 [ ac_cv_have_ss_family_in_struct_ss="yes" ],
1629                 [ ac_cv_have_ss_family_in_struct_ss="no" ],
1630         )
1631 ])
1632 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
1633         AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
1634 fi
1635
1636 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
1637                 ac_cv_have___ss_family_in_struct_ss, [
1638         AC_TRY_COMPILE(
1639                 [
1640 #include <sys/types.h>
1641 #include <sys/socket.h>
1642                 ],
1643                 [ struct sockaddr_storage s; s.__ss_family = 1; ],
1644                 [ ac_cv_have___ss_family_in_struct_ss="yes" ],
1645                 [ ac_cv_have___ss_family_in_struct_ss="no" ]
1646         )
1647 ])
1648 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
1649         AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
1650 fi
1651
1652 AC_CACHE_CHECK([for pw_class field in struct passwd],
1653                 ac_cv_have_pw_class_in_struct_passwd, [
1654         AC_TRY_COMPILE(
1655                 [
1656 #include <pwd.h>
1657                 ],
1658                 [ struct passwd p; p.pw_class = 0; ],
1659                 [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
1660                 [ ac_cv_have_pw_class_in_struct_passwd="no" ]
1661         )
1662 ])
1663 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
1664         AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD)
1665 fi
1666
1667 AC_CACHE_CHECK([for pw_expire field in struct passwd],
1668                 ac_cv_have_pw_expire_in_struct_passwd, [
1669         AC_TRY_COMPILE(
1670                 [
1671 #include <pwd.h>
1672                 ],
1673                 [ struct passwd p; p.pw_expire = 0; ],
1674                 [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
1675                 [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
1676         )
1677 ])
1678 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
1679         AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD)
1680 fi
1681
1682 AC_CACHE_CHECK([for pw_change field in struct passwd],
1683                 ac_cv_have_pw_change_in_struct_passwd, [
1684         AC_TRY_COMPILE(
1685                 [
1686 #include <pwd.h>
1687                 ],
1688                 [ struct passwd p; p.pw_change = 0; ],
1689                 [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
1690                 [ ac_cv_have_pw_change_in_struct_passwd="no" ]
1691         )
1692 ])
1693 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
1694         AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD)
1695 fi
1696
1697 dnl make sure we're using the real structure members and not defines
1698 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
1699                 ac_cv_have_accrights_in_msghdr, [
1700         AC_TRY_RUN(
1701                 [
1702 #include <sys/types.h>
1703 #include <sys/socket.h>
1704 #include <sys/uio.h>
1705 int main() {
1706 #ifdef msg_accrights
1707 exit(1);
1708 #endif
1709 struct msghdr m;
1710 m.msg_accrights = 0;
1711 exit(0);
1712 }
1713                 ],
1714                 [ ac_cv_have_accrights_in_msghdr="yes" ],
1715                 [ ac_cv_have_accrights_in_msghdr="no" ]
1716         )
1717 ])
1718 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
1719         AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR)
1720 fi
1721
1722 AC_CACHE_CHECK([for msg_control field in struct msghdr],
1723                 ac_cv_have_control_in_msghdr, [
1724         AC_TRY_RUN(
1725                 [
1726 #include <sys/types.h>
1727 #include <sys/socket.h>
1728 #include <sys/uio.h>
1729 int main() {
1730 #ifdef msg_control
1731 exit(1);
1732 #endif
1733 struct msghdr m;
1734 m.msg_control = 0;
1735 exit(0);
1736 }
1737                 ],
1738                 [ ac_cv_have_control_in_msghdr="yes" ],
1739                 [ ac_cv_have_control_in_msghdr="no" ]
1740         )
1741 ])
1742 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
1743         AC_DEFINE(HAVE_CONTROL_IN_MSGHDR)
1744 fi
1745
1746 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
1747         AC_TRY_LINK([],
1748                 [ extern char *__progname; printf("%s", __progname); ],
1749                 [ ac_cv_libc_defines___progname="yes" ],
1750                 [ ac_cv_libc_defines___progname="no" ]
1751         )
1752 ])
1753 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
1754         AC_DEFINE(HAVE___PROGNAME)
1755 fi
1756
1757 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
1758         AC_TRY_LINK([
1759 #include <stdio.h>
1760 ],
1761                 [ printf("%s", __FUNCTION__); ],
1762                 [ ac_cv_cc_implements___FUNCTION__="yes" ],
1763                 [ ac_cv_cc_implements___FUNCTION__="no" ]
1764         )
1765 ])
1766 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
1767         AC_DEFINE(HAVE___FUNCTION__)
1768 fi
1769
1770 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
1771         AC_TRY_LINK([
1772 #include <stdio.h>
1773 ],
1774                 [ printf("%s", __func__); ],
1775                 [ ac_cv_cc_implements___func__="yes" ],
1776                 [ ac_cv_cc_implements___func__="no" ]
1777         )
1778 ])
1779 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
1780         AC_DEFINE(HAVE___func__)
1781 fi
1782
1783 AC_CACHE_CHECK([whether getopt has optreset support],
1784                 ac_cv_have_getopt_optreset, [
1785         AC_TRY_LINK(
1786                 [
1787 #include <getopt.h>
1788                 ],
1789                 [ extern int optreset; optreset = 0; ],
1790                 [ ac_cv_have_getopt_optreset="yes" ],
1791                 [ ac_cv_have_getopt_optreset="no" ]
1792         )
1793 ])
1794 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
1795         AC_DEFINE(HAVE_GETOPT_OPTRESET)
1796 fi
1797
1798 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
1799         AC_TRY_LINK([],
1800                 [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
1801                 [ ac_cv_libc_defines_sys_errlist="yes" ],
1802                 [ ac_cv_libc_defines_sys_errlist="no" ]
1803         )
1804 ])
1805 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
1806         AC_DEFINE(HAVE_SYS_ERRLIST)
1807 fi
1808
1809
1810 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
1811         AC_TRY_LINK([],
1812                 [ extern int sys_nerr; printf("%i", sys_nerr);],
1813                 [ ac_cv_libc_defines_sys_nerr="yes" ],
1814                 [ ac_cv_libc_defines_sys_nerr="no" ]
1815         )
1816 ])
1817 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
1818         AC_DEFINE(HAVE_SYS_NERR)
1819 fi
1820
1821 SCARD_MSG="no"
1822 # Check whether user wants sectok support
1823 AC_ARG_WITH(sectok,
1824         [  --with-sectok           Enable smartcard support using libsectok],
1825         [
1826                 if test "x$withval" != "xno" ; then
1827                         if test "x$withval" != "xyes" ; then
1828                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1829                                 LDFLAGS="$LDFLAGS -L${withval}"
1830                                 if test ! -z "$need_dash_r" ; then
1831                                         LDFLAGS="$LDFLAGS -R${withval}"
1832                                 fi
1833                                 if test ! -z "$blibpath" ; then
1834                                         blibpath="$blibpath:${withval}"
1835                                 fi
1836                         fi
1837                         AC_CHECK_HEADERS(sectok.h)
1838                         if test "$ac_cv_header_sectok_h" != yes; then
1839                                 AC_MSG_ERROR(Can't find sectok.h)
1840                         fi
1841                         AC_CHECK_LIB(sectok, sectok_open)
1842                         if test "$ac_cv_lib_sectok_sectok_open" != yes; then
1843                                 AC_MSG_ERROR(Can't find libsectok)
1844                         fi
1845                         AC_DEFINE(SMARTCARD)
1846                         AC_DEFINE(USE_SECTOK)
1847                         SCARD_MSG="yes, using sectok"
1848                 fi
1849         ]
1850 )
1851
1852 # Check whether user wants OpenSC support
1853 AC_ARG_WITH(opensc,
1854         AC_HELP_STRING([--with-opensc=PFX],
1855                        [Enable smartcard support using OpenSC]),
1856         opensc_config_prefix="$withval", opensc_config_prefix="")
1857 if test x$opensc_config_prefix != x ; then
1858   OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
1859   AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
1860   if test "$OPENSC_CONFIG" != "no"; then
1861     LIBOPENSC_CFLAGS=`$OPENSC_CONFIG --cflags`
1862     LIBOPENSC_LIBS=`$OPENSC_CONFIG --libs`
1863     CPPFLAGS="$CPPFLAGS $LIBOPENSC_CFLAGS"
1864     LDFLAGS="$LDFLAGS $LIBOPENSC_LIBS"
1865     AC_DEFINE(SMARTCARD)
1866     AC_DEFINE(USE_OPENSC)
1867     SCARD_MSG="yes, using OpenSC"
1868   fi
1869 fi
1870
1871 # Check whether user wants DNS support
1872 DNS_MSG="no"
1873 AC_ARG_WITH(dns,
1874         [  --with-dns              Support for fetching keys from DNS (experimental)],
1875         [
1876                 if test "x$withval" != "xno" ; then
1877                         DNS_MSG="yes"
1878                         AC_DEFINE(DNS)
1879                         AC_SEARCH_LIBS(getrrsetbyname, resolv,
1880                                 [AC_DEFINE(HAVE_GETRRSETBYNAME)],
1881                                 [
1882                                         # Needed by our getrrsetbyname()
1883                                         AC_SEARCH_LIBS(res_query, resolv)
1884                                         AC_SEARCH_LIBS(dn_expand, resolv)
1885                                 ])
1886                 fi
1887         ]
1888 )
1889
1890 # Check whether user wants Kerberos 5 support
1891 KRB5_MSG="no"
1892 AC_ARG_WITH(kerberos5,
1893         [  --with-kerberos5=PATH   Enable Kerberos 5 support],
1894         [
1895                 if test "x$withval" != "xno" ; then
1896                         if test "x$withval" = "xyes" ; then
1897                                 KRB5ROOT="/usr/local"
1898                         else
1899                                 KRB5ROOT=${withval}
1900                         fi
1901                         CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
1902                         LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
1903                         AC_DEFINE(KRB5)
1904                         KRB5_MSG="yes"
1905                         AC_MSG_CHECKING(whether we are using Heimdal)
1906                         AC_TRY_COMPILE([ #include <krb5.h> ],
1907                                        [ char *tmp = heimdal_version; ],
1908                                        [ AC_MSG_RESULT(yes)
1909                                          AC_DEFINE(HEIMDAL)
1910                                          K5LIBS="-lkrb5 -ldes -lcom_err -lasn1 -lroken"
1911                                        ],
1912                                        [ AC_MSG_RESULT(no)
1913                                          K5LIBS="-lkrb5 -lk5crypto -lcom_err"
1914                                        ]
1915                         )
1916                         if test ! -z "$need_dash_r" ; then
1917                                 LDFLAGS="$LDFLAGS -R${KRB5ROOT}/lib"
1918                         fi
1919                         if test ! -z "$blibpath" ; then
1920                                 blibpath="$blibpath:${KRB5ROOT}/lib"
1921                         fi
1922                         AC_SEARCH_LIBS(dn_expand, resolv)
1923
1924                         KRB5=yes
1925                 fi
1926         ]
1927 )
1928 # Check whether user wants Kerberos 4 support
1929 KRB4_MSG="no"
1930 AC_ARG_WITH(kerberos4,
1931         [  --with-kerberos4=PATH   Enable Kerberos 4 support],
1932         [
1933                 if test "x$withval" != "xno" ; then
1934                         if test "x$withval" != "xyes" ; then
1935                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1936                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1937                                 if test ! -z "$need_dash_r" ; then
1938                                         LDFLAGS="$LDFLAGS -R${withval}/lib"
1939                                 fi
1940                                 if test ! -z "$blibpath" ; then
1941                                         blibpath="$blibpath:${withval}/lib"
1942                                 fi
1943                         else
1944                                 if test -d /usr/include/kerberosIV ; then
1945                                         CPPFLAGS="$CPPFLAGS -I/usr/include/kerberosIV"
1946                                 fi
1947                         fi
1948
1949                         AC_CHECK_HEADERS(krb.h)
1950                         if test "$ac_cv_header_krb_h" != yes; then
1951                                 AC_MSG_WARN([Cannot find krb.h, build may fail])
1952                         fi
1953                         AC_CHECK_LIB(krb, main)
1954                         if test "$ac_cv_lib_krb_main" != yes; then
1955                                 AC_CHECK_LIB(krb4, main)
1956                                 if test "$ac_cv_lib_krb4_main" != yes; then
1957                                         AC_MSG_WARN([Cannot find libkrb nor libkrb4, build may fail])
1958                                 else
1959                                         KLIBS="-lkrb4"
1960                                 fi
1961                         else
1962                                 KLIBS="-lkrb"
1963                         fi
1964                         AC_CHECK_LIB(des, des_cbc_encrypt)
1965                         if test "$ac_cv_lib_des_des_cbc_encrypt" != yes; then
1966                                 AC_CHECK_LIB(des425, des_cbc_encrypt)
1967                                 if test "$ac_cv_lib_des425_des_cbc_encrypt" != yes; then
1968                                         AC_MSG_WARN([Cannot find libdes nor libdes425, build may fail])
1969                                 else
1970                                         KLIBS="-ldes425"
1971                                 fi
1972                         else
1973                                 KLIBS="-ldes"
1974                         fi
1975                         AC_CHECK_LIB(resolv, dn_expand, , )
1976                         KRB4=yes
1977                         KRB4_MSG="yes"
1978                         AC_DEFINE(KRB4)
1979                 fi
1980         ]
1981 )
1982
1983 # Check whether user wants AFS support
1984 AFS_MSG="no"
1985 AC_ARG_WITH(afs,
1986         [  --with-afs=PATH         Enable AFS support],
1987         [
1988                 if test "x$withval" != "xno" ; then
1989
1990                         if test "x$withval" != "xyes" ; then
1991                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1992                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1993                         fi
1994
1995                         if test -z "$KRB4" ; then
1996                                 AC_MSG_WARN([AFS requires Kerberos IV support, build may fail])
1997                         fi
1998
1999                         LIBS="-lkafs $LIBS"
2000                         if test ! -z "$AFS_LIBS" ; then
2001                                 LIBS="$LIBS $AFS_LIBS"
2002                         fi
2003                         AC_DEFINE(AFS)
2004                         AFS_MSG="yes"
2005                 fi
2006         ]
2007 )
2008 LIBS="$LIBS $KLIBS $K5LIBS"
2009
2010 # Looking for programs, paths and files
2011
2012 PRIVSEP_PATH=/var/empty
2013 AC_ARG_WITH(privsep-path,
2014         [  --with-privsep-path=xxx Path for privilege separation chroot (default=/var/empty)],
2015         [
2016                 if test "x$withval" != "$no" ; then
2017                         PRIVSEP_PATH=$withval
2018                 fi
2019         ]
2020 )
2021 AC_SUBST(PRIVSEP_PATH)
2022
2023 AC_ARG_WITH(xauth,
2024         [  --with-xauth=PATH       Specify path to xauth program ],
2025         [
2026                 if test "x$withval" != "xno" ; then
2027                         xauth_path=$withval
2028                 fi
2029         ],
2030         [
2031                 TestPath="$PATH"
2032                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X/bin"
2033                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/bin/X11"
2034                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/X11R6/bin"
2035                 TestPath="${TestPath}${PATH_SEPARATOR}/usr/openwin/bin"
2036                 AC_PATH_PROG(xauth_path, xauth, , $TestPath)
2037                 if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
2038                         xauth_path="/usr/openwin/bin/xauth"
2039                 fi
2040         ]
2041 )
2042
2043 STRIP_OPT=-s
2044 AC_ARG_ENABLE(strip,
2045         [  --disable-strip         Disable calling strip(1) on install],
2046         [
2047                 if test "x$enableval" = "xno" ; then
2048                         STRIP_OPT=
2049                 fi
2050         ]
2051 )
2052 AC_SUBST(STRIP_OPT)
2053
2054 if test -z "$xauth_path" ; then
2055         XAUTH_PATH="undefined"
2056         AC_SUBST(XAUTH_PATH)
2057 else
2058         AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
2059         XAUTH_PATH=$xauth_path
2060         AC_SUBST(XAUTH_PATH)
2061 fi
2062
2063 # Check for mail directory (last resort if we cannot get it from headers)
2064 if test ! -z "$MAIL" ; then
2065         maildir=`dirname $MAIL`
2066         AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
2067 fi
2068
2069 if test -z "$no_dev_ptmx" ; then
2070         if test "x$disable_ptmx_check" != "xyes" ; then
2071                 AC_CHECK_FILE("/dev/ptmx",
2072                         [
2073                                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
2074                                 have_dev_ptmx=1
2075                         ]
2076                 )
2077         fi
2078 fi
2079 AC_CHECK_FILE("/dev/ptc",
2080         [
2081                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
2082                 have_dev_ptc=1
2083         ]
2084 )
2085
2086 # Options from here on. Some of these are preset by platform above
2087 AC_ARG_WITH(mantype,
2088         [  --with-mantype=man|cat|doc  Set man page type],
2089         [
2090                 case "$withval" in
2091                 man|cat|doc)
2092                         MANTYPE=$withval
2093                         ;;
2094                 *)
2095                         AC_MSG_ERROR(invalid man type: $withval)
2096                         ;;
2097                 esac
2098         ]
2099 )
2100 if test -z "$MANTYPE"; then
2101         TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
2102         AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
2103         if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
2104                 MANTYPE=doc
2105         elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
2106                 MANTYPE=man
2107         else
2108                 MANTYPE=cat
2109         fi
2110 fi
2111 AC_SUBST(MANTYPE)
2112 if test "$MANTYPE" = "doc"; then
2113         mansubdir=man;
2114 else
2115         mansubdir=$MANTYPE;
2116 fi
2117 AC_SUBST(mansubdir)
2118
2119 # Check whether to enable MD5 passwords
2120 MD5_MSG="no"
2121 AC_ARG_WITH(md5-passwords,
2122         [  --with-md5-passwords    Enable use of MD5 passwords],
2123         [
2124                 if test "x$withval" != "xno" ; then
2125                         AC_DEFINE(HAVE_MD5_PASSWORDS)
2126                         MD5_MSG="yes"
2127                 fi
2128         ]
2129 )
2130
2131 # Whether to disable shadow password support
2132 AC_ARG_WITH(shadow,
2133         [  --without-shadow        Disable shadow password support],
2134         [
2135                 if test "x$withval" = "xno" ; then
2136                         AC_DEFINE(DISABLE_SHADOW)
2137                         disable_shadow=yes
2138                 fi
2139         ]
2140 )
2141
2142 if test -z "$disable_shadow" ; then
2143         AC_MSG_CHECKING([if the systems has expire shadow information])
2144         AC_TRY_COMPILE(
2145         [
2146 #include <sys/types.h>
2147 #include <shadow.h>
2148         struct spwd sp;
2149         ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
2150         [ sp_expire_available=yes ], []
2151         )
2152
2153         if test "x$sp_expire_available" = "xyes" ; then
2154                 AC_MSG_RESULT(yes)
2155                 AC_DEFINE(HAS_SHADOW_EXPIRE)
2156         else
2157                 AC_MSG_RESULT(no)
2158         fi
2159 fi
2160
2161 # Use ip address instead of hostname in $DISPLAY
2162 if test ! -z "$IPADDR_IN_DISPLAY" ; then
2163         DISPLAY_HACK_MSG="yes"
2164         AC_DEFINE(IPADDR_IN_DISPLAY)
2165 else
2166         DISPLAY_HACK_MSG="no"
2167         AC_ARG_WITH(ipaddr-display,
2168                 [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
2169                 [
2170                         if test "x$withval" != "xno" ; then
2171                                 AC_DEFINE(IPADDR_IN_DISPLAY)
2172                                 DISPLAY_HACK_MSG="yes"
2173                         fi
2174                 ]
2175         )
2176 fi
2177
2178 dnl BSD systems use /etc/login.conf so --with-default-path= has no effect
2179 if test $ac_cv_func_login_getcapbool = "yes" -a \
2180         $ac_cv_header_login_cap_h = "yes" ; then
2181         USES_LOGIN_CONF=yes
2182 fi
2183 # Whether to mess with the default path
2184 SERVER_PATH_MSG="(default)"
2185 AC_ARG_WITH(default-path,
2186         [  --with-default-path=    Specify default \$PATH environment for server],
2187         [
2188                 if test "$USES_LOGIN_CONF" = "yes" ; then
2189                         AC_MSG_WARN([
2190 --with-default-path=PATH has no effect on this system.
2191 Edit /etc/login.conf instead.])
2192                 elif test "x$withval" != "xno" ; then
2193                         user_path="$withval"
2194                         SERVER_PATH_MSG="$withval"
2195                 fi
2196         ],
2197         [ if test "$USES_LOGIN_CONF" = "yes" ; then
2198         AC_MSG_WARN([Make sure the path to scp is in /etc/login.conf])
2199         else
2200         AC_TRY_RUN(
2201                 [
2202 /* find out what STDPATH is */
2203 #include <stdio.h>
2204 #ifdef HAVE_PATHS_H
2205 # include <paths.h>
2206 #endif
2207 #ifndef _PATH_STDPATH
2208 # ifdef _PATH_USERPATH  /* Irix */
2209 #  define _PATH_STDPATH _PATH_USERPATH
2210 # else
2211 #  define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
2212 # endif
2213 #endif
2214 #include <sys/types.h>
2215 #include <sys/stat.h>
2216 #include <fcntl.h>
2217 #define DATA "conftest.stdpath"
2218
2219 main()
2220 {
2221         FILE *fd;
2222         int rc;
2223
2224         fd = fopen(DATA,"w");
2225         if(fd == NULL)
2226                 exit(1);
2227
2228         if ((rc = fprintf(fd,"%s", _PATH_STDPATH)) < 0)
2229                 exit(1);
2230
2231         exit(0);
2232 }
2233                 ], [ user_path=`cat conftest.stdpath` ],
2234                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
2235                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ]
2236         )
2237 # make sure $bindir is in USER_PATH so scp will work
2238                 t_bindir=`eval echo ${bindir}`
2239                 case $t_bindir in
2240                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;;
2241                 esac
2242                 case $t_bindir in
2243                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;;
2244                 esac
2245                 echo $user_path | grep ":$t_bindir"  > /dev/null 2>&1
2246                 if test $? -ne 0  ; then
2247                         echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
2248                         if test $? -ne 0  ; then
2249                                 user_path=$user_path:$t_bindir
2250                                 AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
2251                         fi
2252                 fi
2253         fi ]
2254 )
2255 if test "$USES_LOGIN_CONF" != "yes" ; then
2256         AC_DEFINE_UNQUOTED(USER_PATH, "$user_path")
2257         AC_SUBST(user_path)
2258 fi
2259
2260 # Set superuser path separately to user path
2261 AC_ARG_WITH(superuser-path,
2262         [  --with-superuser-path=  Specify different path for super-user],
2263         [
2264                 if test "x$withval" != "xno" ; then
2265                         AC_DEFINE_UNQUOTED(SUPERUSER_PATH, "$withval")
2266                         superuser_path=$withval
2267                 fi
2268         ]
2269 )
2270
2271
2272 AC_MSG_CHECKING([if we need to convert IPv4 in IPv6-mapped addresses])
2273 IPV4_IN6_HACK_MSG="no"
2274 AC_ARG_WITH(4in6,
2275         [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
2276         [
2277                 if test "x$withval" != "xno" ; then
2278                         AC_MSG_RESULT(yes)
2279                         AC_DEFINE(IPV4_IN_IPV6)
2280                         IPV4_IN6_HACK_MSG="yes"
2281                 else
2282                         AC_MSG_RESULT(no)
2283                 fi
2284         ],[
2285                 if test "x$inet6_default_4in6" = "xyes"; then
2286                         AC_MSG_RESULT([yes (default)])
2287                         AC_DEFINE(IPV4_IN_IPV6)
2288                         IPV4_IN6_HACK_MSG="yes"
2289                 else
2290                         AC_MSG_RESULT([no (default)])
2291                 fi
2292         ]
2293 )
2294
2295 # Whether to enable BSD auth support
2296 BSD_AUTH_MSG=no
2297 AC_ARG_WITH(bsd-auth,
2298         [  --with-bsd-auth         Enable BSD auth support],
2299         [
2300                 if test "x$withval" != "xno" ; then
2301                         AC_DEFINE(BSD_AUTH)
2302                         BSD_AUTH_MSG=yes
2303                 fi
2304         ]
2305 )
2306
2307 # Where to place sshd.pid
2308 piddir=/var/run
2309 # make sure the directory exists
2310 if test ! -d $piddir ; then
2311         piddir=`eval echo ${sysconfdir}`
2312         case $piddir in
2313                 NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
2314         esac
2315 fi
2316
2317 AC_ARG_WITH(pid-dir,
2318         [  --with-pid-dir=PATH     Specify location of ssh.pid file],
2319         [
2320                 if test "x$withval" != "xno" ; then
2321                         piddir=$withval
2322                         if test ! -d $piddir ; then
2323                         AC_MSG_WARN([** no $piddir directory on this system **])
2324                         fi
2325                 fi
2326         ]
2327 )
2328
2329 AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
2330 AC_SUBST(piddir)
2331
2332 dnl allow user to disable some login recording features
2333 AC_ARG_ENABLE(lastlog,
2334         [  --disable-lastlog       disable use of lastlog even if detected [no]],
2335         [
2336                 if test "x$enableval" = "xno" ; then
2337                         AC_DEFINE(DISABLE_LASTLOG)
2338                 fi
2339         ]
2340 )
2341 AC_ARG_ENABLE(utmp,
2342         [  --disable-utmp          disable use of utmp even if detected [no]],
2343         [
2344                 if test "x$enableval" = "xno" ; then
2345                         AC_DEFINE(DISABLE_UTMP)
2346                 fi
2347         ]
2348 )
2349 AC_ARG_ENABLE(utmpx,
2350         [  --disable-utmpx         disable use of utmpx even if detected [no]],
2351         [
2352                 if test "x$enableval" = "xno" ; then
2353                         AC_DEFINE(DISABLE_UTMPX)
2354                 fi
2355         ]
2356 )
2357 AC_ARG_ENABLE(wtmp,
2358         [  --disable-wtmp          disable use of wtmp even if detected [no]],
2359         [
2360                 if test "x$enableval" = "xno" ; then
2361                         AC_DEFINE(DISABLE_WTMP)
2362                 fi
2363         ]
2364 )
2365 AC_ARG_ENABLE(wtmpx,
2366         [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
2367         [
2368                 if test "x$enableval" = "xno" ; then
2369                         AC_DEFINE(DISABLE_WTMPX)
2370                 fi
2371         ]
2372 )
2373 AC_ARG_ENABLE(libutil,
2374         [  --disable-libutil       disable use of libutil (login() etc.) [no]],
2375         [
2376                 if test "x$enableval" = "xno" ; then
2377                         AC_DEFINE(DISABLE_LOGIN)
2378                 fi
2379         ]
2380 )
2381 AC_ARG_ENABLE(pututline,
2382         [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
2383         [
2384                 if test "x$enableval" = "xno" ; then
2385                         AC_DEFINE(DISABLE_PUTUTLINE)
2386                 fi
2387         ]
2388 )
2389 AC_ARG_ENABLE(pututxline,
2390         [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
2391         [
2392                 if test "x$enableval" = "xno" ; then
2393                         AC_DEFINE(DISABLE_PUTUTXLINE)
2394                 fi
2395         ]
2396 )
2397 AC_ARG_WITH(lastlog,
2398   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
2399         [
2400                 if test "x$withval" = "xno" ; then
2401                         AC_DEFINE(DISABLE_LASTLOG)
2402                 else
2403                         conf_lastlog_location=$withval
2404                 fi
2405         ]
2406 )
2407
2408 dnl lastlog, [uw]tmpx? detection
2409 dnl  NOTE: set the paths in the platform section to avoid the
2410 dnl   need for command-line parameters
2411 dnl lastlog and [uw]tmp are subject to a file search if all else fails
2412
2413 dnl lastlog detection
2414 dnl  NOTE: the code itself will detect if lastlog is a directory
2415 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
2416 AC_TRY_COMPILE([
2417 #include <sys/types.h>
2418 #include <utmp.h>
2419 #ifdef HAVE_LASTLOG_H
2420 #  include <lastlog.h>
2421 #endif
2422 #ifdef HAVE_PATHS_H
2423 #  include <paths.h>
2424 #endif
2425 #ifdef HAVE_LOGIN_H
2426 # include <login.h>
2427 #endif
2428         ],
2429         [ char *lastlog = LASTLOG_FILE; ],
2430         [ AC_MSG_RESULT(yes) ],
2431         [
2432                 AC_MSG_RESULT(no)
2433                 AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
2434                 AC_TRY_COMPILE([
2435 #include <sys/types.h>
2436 #include <utmp.h>
2437 #ifdef HAVE_LASTLOG_H
2438 #  include <lastlog.h>
2439 #endif
2440 #ifdef HAVE_PATHS_H
2441 #  include <paths.h>
2442 #endif
2443                 ],
2444                 [ char *lastlog = _PATH_LASTLOG; ],
2445                 [ AC_MSG_RESULT(yes) ],
2446                 [
2447                         AC_MSG_RESULT(no)
2448                         system_lastlog_path=no
2449                 ])
2450         ]
2451 )
2452
2453 if test -z "$conf_lastlog_location"; then
2454         if test x"$system_lastlog_path" = x"no" ; then
2455                 for f in /var/log/lastlog /usr/adm/lastlog /var/adm/lastlog /etc/security/lastlog ; do
2456                                 if (test -d "$f" || test -f "$f") ; then
2457                                         conf_lastlog_location=$f
2458                                 fi
2459                 done
2460                 if test -z "$conf_lastlog_location"; then
2461                         AC_MSG_WARN([** Cannot find lastlog **])
2462                         dnl Don't define DISABLE_LASTLOG - that means we don't try wtmp/wtmpx
2463                 fi
2464         fi
2465 fi
2466
2467 if test -n "$conf_lastlog_location"; then
2468         AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location")
2469 fi
2470
2471 dnl utmp detection
2472 AC_MSG_CHECKING([if your system defines UTMP_FILE])
2473 AC_TRY_COMPILE([
2474 #include <sys/types.h>
2475 #include <utmp.h>
2476 #ifdef HAVE_PATHS_H
2477 #  include <paths.h>
2478 #endif
2479         ],
2480         [ char *utmp = UTMP_FILE; ],
2481         [ AC_MSG_RESULT(yes) ],
2482         [ AC_MSG_RESULT(no)
2483           system_utmp_path=no ]
2484 )
2485 if test -z "$conf_utmp_location"; then
2486         if test x"$system_utmp_path" = x"no" ; then
2487                 for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
2488                         if test -f $f ; then
2489                                 conf_utmp_location=$f
2490                         fi
2491                 done
2492                 if test -z "$conf_utmp_location"; then
2493                         AC_DEFINE(DISABLE_UTMP)
2494                 fi
2495         fi
2496 fi
2497 if test -n "$conf_utmp_location"; then
2498         AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location")
2499 fi
2500
2501 dnl wtmp detection
2502 AC_MSG_CHECKING([if your system defines WTMP_FILE])
2503 AC_TRY_COMPILE([
2504 #include <sys/types.h>
2505 #include <utmp.h>
2506 #ifdef HAVE_PATHS_H
2507 #  include <paths.h>
2508 #endif
2509         ],
2510         [ char *wtmp = WTMP_FILE; ],
2511         [ AC_MSG_RESULT(yes) ],
2512         [ AC_MSG_RESULT(no)
2513           system_wtmp_path=no ]
2514 )
2515 if test -z "$conf_wtmp_location"; then
2516         if test x"$system_wtmp_path" = x"no" ; then
2517                 for f in /usr/adm/wtmp /var/log/wtmp; do
2518                         if test -f $f ; then
2519                                 conf_wtmp_location=$f
2520                         fi
2521                 done
2522                 if test -z "$conf_wtmp_location"; then
2523                         AC_DEFINE(DISABLE_WTMP)
2524                 fi
2525         fi
2526 fi
2527 if test -n "$conf_wtmp_location"; then
2528         AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location")
2529 fi
2530
2531
2532 dnl utmpx detection - I don't know any system so perverse as to require
2533 dnl  utmpx, but not define UTMPX_FILE (ditto wtmpx.) No doubt it's out
2534 dnl  there, though.
2535 AC_MSG_CHECKING([if your system defines UTMPX_FILE])
2536 AC_TRY_COMPILE([
2537 #include <sys/types.h>
2538 #include <utmp.h>
2539 #ifdef HAVE_UTMPX_H
2540 #include <utmpx.h>
2541 #endif
2542 #ifdef HAVE_PATHS_H
2543 #  include <paths.h>
2544 #endif
2545         ],
2546         [ char *utmpx = UTMPX_FILE; ],
2547         [ AC_MSG_RESULT(yes) ],
2548         [ AC_MSG_RESULT(no)
2549           system_utmpx_path=no ]
2550 )
2551 if test -z "$conf_utmpx_location"; then
2552         if test x"$system_utmpx_path" = x"no" ; then
2553                 AC_DEFINE(DISABLE_UTMPX)
2554         fi
2555 else
2556         AC_DEFINE_UNQUOTED(CONF_UTMPX_FILE, "$conf_utmpx_location")
2557 fi
2558
2559 dnl wtmpx detection
2560 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
2561 AC_TRY_COMPILE([
2562 #include <sys/types.h>
2563 #include <utmp.h>
2564 #ifdef HAVE_UTMPX_H
2565 #include <utmpx.h>
2566 #endif
2567 #ifdef HAVE_PATHS_H
2568 #  include <paths.h>
2569 #endif
2570         ],
2571         [ char *wtmpx = WTMPX_FILE; ],
2572         [ AC_MSG_RESULT(yes) ],
2573         [ AC_MSG_RESULT(no)
2574           system_wtmpx_path=no ]
2575 )
2576 if test -z "$conf_wtmpx_location"; then
2577         if test x"$system_wtmpx_path" = x"no" ; then
2578                 AC_DEFINE(DISABLE_WTMPX)
2579         fi
2580 else
2581         AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location")
2582 fi
2583
2584
2585 if test ! -z "$blibpath" ; then
2586         LDFLAGS="$LDFLAGS $blibflags$blibpath"
2587         AC_MSG_WARN([Please check and edit blibpath in LDFLAGS in Makefile])
2588 fi
2589
2590 dnl remove pam and dl because they are in $LIBPAM
2591 if test "$PAM_MSG" = yes ; then
2592         LIBS=`echo $LIBS | sed 's/-lpam //'`
2593 fi
2594 if test "$ac_cv_lib_pam_pam_set_item" = yes ; then
2595         LIBS=`echo $LIBS | sed 's/-ldl //'`
2596 fi
2597
2598 AC_EXEEXT
2599 AC_CONFIG_FILES([Makefile openbsd-compat/Makefile scard/Makefile ssh_prng_cmds])
2600 AC_OUTPUT
2601
2602 # Print summary of options
2603
2604 # Someone please show me a better way :)
2605 A=`eval echo ${prefix}` ; A=`eval echo ${A}`
2606 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
2607 C=`eval echo ${sbindir}` ; C=`eval echo ${C}`
2608 D=`eval echo ${sysconfdir}` ; D=`eval echo ${D}`
2609 E=`eval echo ${libexecdir}/ssh-askpass` ; E=`eval echo ${E}`
2610 F=`eval echo ${mandir}/${mansubdir}X` ; F=`eval echo ${F}`
2611 G=`eval echo ${piddir}` ; G=`eval echo ${G}`
2612 H=`eval echo ${PRIVSEP_PATH}` ; H=`eval echo ${H}`
2613 I=`eval echo ${user_path}` ; I=`eval echo ${I}`
2614 J=`eval echo ${superuser_path}` ; J=`eval echo ${J}`
2615
2616 echo ""
2617 echo "OpenSSH has been configured with the following options:"
2618 echo "                     User binaries: $B"
2619 echo "                   System binaries: $C"
2620 echo "               Configuration files: $D"
2621 echo "                   Askpass program: $E"
2622 echo "                      Manual pages: $F"
2623 echo "                          PID file: $G"
2624 echo "  Privilege separation chroot path: $H"
2625 if test "$USES_LOGIN_CONF" = "yes" ; then
2626 echo "   At runtime, sshd will use the path defined in /etc/login.conf"
2627 else
2628 echo "            sshd default user PATH: $I"
2629 fi
2630 if test ! -z "$superuser_path" ; then
2631 echo "          sshd superuser user PATH: $J"
2632 fi
2633 echo "                    Manpage format: $MANTYPE"
2634 echo "                       DNS support: $DNS_MSG"
2635 echo "                       PAM support: $PAM_MSG"
2636 echo "                KerberosIV support: $KRB4_MSG"
2637 echo "                 KerberosV support: $KRB5_MSG"
2638 echo "                 Smartcard support: $SCARD_MSG"
2639 echo "                       AFS support: $AFS_MSG"
2640 echo "                     S/KEY support: $SKEY_MSG"
2641 echo "              TCP Wrappers support: $TCPW_MSG"
2642 echo "              MD5 password support: $MD5_MSG"
2643 echo "       IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
2644 echo "           Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
2645 echo "                  BSD Auth support: $BSD_AUTH_MSG"
2646 echo "              Random number source: $RAND_MSG"
2647 if test ! -z "$USE_RAND_HELPER" ; then
2648 echo "     ssh-rand-helper collects from: $RAND_HELPER_MSG"
2649 fi
2650
2651 echo ""
2652
2653 echo "              Host: ${host}"
2654 echo "          Compiler: ${CC}"
2655 echo "    Compiler flags: ${CFLAGS}"
2656 echo "Preprocessor flags: ${CPPFLAGS}"
2657 echo "      Linker flags: ${LDFLAGS}"
2658 echo "         Libraries: ${LIBWRAP} ${LIBPAM} ${LIBS}"
2659
2660 echo ""
2661
2662 if test "x$PAM_MSG" = "xyes" ; then
2663         echo "PAM is enabled. You may need to install a PAM control file "
2664         echo "for sshd, otherwise password authentication may fail. "
2665         echo "Example PAM control files can be found in the contrib/ "
2666         echo "subdirectory"
2667         echo ""
2668 fi
2669
2670 if test ! -z "$RAND_HELPER_CMDHASH" ; then
2671         echo "WARNING: you are using the builtin random number collection "
2672         echo "service. Please read WARNING.RNG and request that your OS "
2673         echo "vendor includes kernel-based random number collection in "
2674         echo "future versions of your OS."
2675         echo ""
2676 fi
2677