configure.ac

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