configure.ac

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