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_SUBST(PERL)
  18 AC_PATH_PROG(ENT, ent)
  19 AC_SUBST(ENT)
  20 AC_PATH_PROGS(FILEPRIV, filepriv, true, /sbin:/usr/sbin)
  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
  25 # System features
  26 AC_SYS_LARGEFILE
  27
  28 if test -z "$AR" ; then
  29         AC_MSG_ERROR([*** 'ar' missing, please install or fix your \$PATH ***])
  30 fi
  31
  32 # Use LOGIN_PROGRAM from environment if possible
  33 if test ! -z "$LOGIN_PROGRAM" ; then
  34         AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM")
  35 else
  36         # Search for login
  37         AC_PATH_PROG(LOGIN_PROGRAM_FALLBACK, login)
  38         if test ! -z "$LOGIN_PROGRAM_FALLBACK" ; then
  39                 AC_DEFINE_UNQUOTED(LOGIN_PROGRAM_FALLBACK, "$LOGIN_PROGRAM_FALLBACK")
  40         fi
  41 fi
  42
  43 if test -z "$LD" ; then
  44         LD=$CC
  45 fi
  46 AC_SUBST(LD)
  47
  48 AC_C_INLINE
  49 if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
  50         CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wno-uninitialized"
  51 fi
  52
  53 # Check for some target-specific stuff
  54 case "$host" in
  55 *-*-aix*)
  56         AFS_LIBS="-lld"
  57         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
  58         LDFLAGS="$LDFLAGS -L/usr/local/lib"
  59         if (test "$LD" != "gcc" && test -z "$blibpath"); then
  60                 blibpath="/usr/lib:/lib:/usr/local/lib"
  61         fi
  62         AC_CHECK_FUNC(authenticate, [AC_DEFINE(WITH_AIXAUTHENTICATE)])
  63         AC_DEFINE(BROKEN_GETADDRINFO)
  64         dnl AIX handles lastlog as part of its login message
  65         AC_DEFINE(DISABLE_LASTLOG)
  66         ;;
  67 *-*-cygwin*)
  68         LIBS="$LIBS /usr/lib/textmode.o"
  69         AC_DEFINE(HAVE_CYGWIN)
  70         AC_DEFINE(USE_PIPES)
  71         AC_DEFINE(DISABLE_SHADOW)
  72         AC_DEFINE(IPV4_DEFAULT)
  73         AC_DEFINE(IP_TOS_IS_BROKEN)
  74         AC_DEFINE(NO_X11_UNIX_SOCKETS)
  75         ;;
  76 *-*-dgux*)
  77         AC_DEFINE(IP_TOS_IS_BROKEN)
  78         ;;
  79 *-*-darwin*)
  80         AC_DEFINE(BROKEN_GETADDRINFO)
  81         ;;
  82 *-*-hpux10*)
  83         if test -z "$GCC"; then
  84                 CFLAGS="$CFLAGS -Ae"
  85         fi
  86         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
  87         IPADDR_IN_DISPLAY=yes
  88         AC_DEFINE(USE_PIPES)
  89         AC_DEFINE(DISABLE_SHADOW)
  90         AC_DEFINE(DISABLE_UTMP)
  91         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
  92         LIBS="$LIBS -lxnet -lsec"
  93         ;;
  94 *-*-hpux11*)
  95         CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1"
  96         IPADDR_IN_DISPLAY=yes
  97         AC_DEFINE(PAM_SUN_CODEBASE)
  98         AC_DEFINE(USE_PIPES)
  99         AC_DEFINE(DISABLE_SHADOW)
 100         AC_DEFINE(DISABLE_UTMP)
 101         AC_DEFINE(SPT_TYPE,SPT_PSTAT)
 102         LIBS="$LIBS -lxnet -lsec"
 103         ;;
 104 *-*-irix5*)
 105         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 106         LDFLAGS="$LDFLAGS"
 107         PATH="$PATH:/usr/etc"
 108         AC_DEFINE(BROKEN_INET_NTOA)
 109         ;;
 110 *-*-irix6*)
 111         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 112         LDFLAGS="$LDFLAGS"
 113         PATH="$PATH:/usr/etc"
 114         AC_DEFINE(WITH_IRIX_ARRAY)
 115         AC_DEFINE(WITH_IRIX_PROJECT)
 116         AC_DEFINE(WITH_IRIX_AUDIT)
 117         AC_CHECK_FUNC(jlimit_startjob, [AC_DEFINE(WITH_IRIX_JOBS)])
 118         AC_DEFINE(BROKEN_INET_NTOA)
 119         ;;
 120 *-*-linux*)
 121         no_dev_ptmx=1
 122         check_for_libcrypt_later=1
 123         AC_DEFINE(DONT_TRY_OTHER_AF)
 124         AC_DEFINE(PAM_TTY_KLUDGE)
 125         inet6_default_4in6=yes
 126         ;;
 127 mips-sony-bsd|mips-sony-newsos4)
 128         AC_DEFINE(HAVE_NEWS4)
 129         SONY=1
 130         ;;
 131 *-*-netbsd*)
 132         need_dash_r=1
 133         ;;
 134 *-*-freebsd*)
 135         check_for_libcrypt_later=1
 136         ;;
 137 *-next-*)
 138         conf_lastlog_location="/usr/adm/lastlog"
 139         conf_utmp_location=/etc/utmp
 140         conf_wtmp_location=/usr/adm/wtmp
 141         MAIL=/usr/spool/mail
 142         AC_DEFINE(HAVE_NEXT)
 143         AC_DEFINE(BROKEN_REALPATH)
 144         AC_DEFINE(USE_PIPES)
 145         AC_DEFINE(BROKEN_SAVED_UIDS)
 146         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 147         CFLAGS="$CFLAGS"
 148         ;;
 149 *-*-solaris*)
 150         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 151         LDFLAGS="$LDFLAGS -L/usr/local/lib -R/usr/local/lib"
 152         need_dash_r=1
 153         AC_DEFINE(PAM_SUN_CODEBASE)
 154         AC_DEFINE(LOGIN_NEEDS_UTMPX)
 155         AC_DEFINE(LOGIN_NEEDS_TERM)
 156         AC_DEFINE(PAM_TTY_KLUDGE)
 157         # hardwire lastlog location (can't detect it on some versions)
 158         conf_lastlog_location="/var/adm/lastlog"
 159         AC_MSG_CHECKING(for obsolete utmp and wtmp in solaris2.x)
 160         sol2ver=`echo "$host"| sed -e 's/.*[[0-9]]\.//'`
 161         if test "$sol2ver" -ge 8; then
 162                 AC_MSG_RESULT(yes)
 163                 AC_DEFINE(DISABLE_UTMP)
 164                 AC_DEFINE(DISABLE_WTMP)
 165         else
 166                 AC_MSG_RESULT(no)
 167         fi
 168         ;;
 169 *-*-sunos4*)
 170         CPPFLAGS="$CPPFLAGS -DSUNOS4"
 171         AC_CHECK_FUNCS(getpwanam)
 172         AC_DEFINE(PAM_SUN_CODEBASE)
 173         conf_utmp_location=/etc/utmp
 174         conf_wtmp_location=/var/adm/wtmp
 175         conf_lastlog_location=/var/adm/lastlog
 176         AC_DEFINE(USE_PIPES)
 177         ;;
 178 *-ncr-sysv*)
 179         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 180         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 181         LIBS="$LIBS -lc89"
 182         AC_DEFINE(USE_PIPES)
 183         ;;
 184 *-sni-sysv*)
 185         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 186         # /usr/ucblib MUST NOT be searched on ReliantUNIX
 187         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 188         IPADDR_IN_DISPLAY=yes
 189         AC_DEFINE(USE_PIPES)
 190         AC_DEFINE(IP_TOS_IS_BROKEN)
 191         # /usr/ucblib/libucb.a no longer needed on ReliantUNIX
 192         # Attention: always take care to bind libsocket and libnsl before libc,
 193         # otherwise you will find lots of "SIOCGPGRP errno 22" on syslog
 194         ;;
 195 *-*-sysv4.2*)
 196         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 197         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 198 #       enable_suid_ssh=no
 199         AC_DEFINE(USE_PIPES)
 200         ;;
 201 *-*-sysv5*)
 202         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 203         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 204 #       enable_suid_ssh=no
 205         AC_DEFINE(USE_PIPES)
 206         ;;
 207 *-*-sysv*)
 208         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 209         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 210         ;;
 211 *-*-sco3.2v4*)
 212         CPPFLAGS="$CPPFLAGS -Dftruncate=chsize -I/usr/local/include"
 213         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 214         LIBS="$LIBS -los -lprot -lx -ltinfo -lm"
 215         rsh_path="/usr/bin/rcmd"
 216         RANLIB=true
 217         no_dev_ptmx=1
 218         AC_DEFINE(BROKEN_SYS_TERMIO_H)
 219         AC_DEFINE(USE_PIPES)
 220         AC_DEFINE(HAVE_SCO_PROTECTED_PW)
 221         AC_DEFINE(DISABLE_SHADOW)
 222         AC_DEFINE(BROKEN_SAVED_UIDS)
 223         AC_CHECK_FUNCS(getluid setluid)
 224         MANTYPE=man
 225         do_sco3_extra_lib_check=yes
 226         ;;
 227 *-*-sco3.2v5*)
 228         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 229         LDFLAGS="$LDFLAGS -L/usr/local/lib"
 230         LIBS="$LIBS -lprot -lx -ltinfo -lm"
 231         no_dev_ptmx=1
 232         rsh_path="/usr/bin/rcmd"
 233         AC_DEFINE(USE_PIPES)
 234         AC_DEFINE(HAVE_SCO_PROTECTED_PW)
 235         AC_DEFINE(DISABLE_SHADOW)
 236         AC_CHECK_FUNCS(getluid setluid)
 237         MANTYPE=man
 238         ;;
 239 *-*-unicos*)
 240         no_libsocket=1
 241         no_libnsl=1
 242         AC_DEFINE(USE_PIPES)
 243         LDFLAGS="$LDFLAGS -Wl,-Dmsglevel=334:fatal,-L/usr/local/lib"
 244         LIBS="$LIBS -lgen -lrsc"
 245         ;;
 246 *-dec-osf*)
 247         AC_MSG_CHECKING(for Digital Unix SIA)
 248         no_osfsia=""
 249         AC_ARG_WITH(osfsia,
 250                 [  --with-osfsia           Enable Digital Unix SIA],
 251                 [
 252                         if test "x$withval" = "xno" ; then
 253                                 AC_MSG_RESULT(disabled)
 254                                 no_osfsia=1
 255                         fi
 256                 ],
 257         )
 258         if test -z "$no_osfsia" ; then
 259                 if test -f /etc/sia/matrix.conf; then
 260                         AC_MSG_RESULT(yes)
 261                         AC_DEFINE(HAVE_OSF_SIA)
 262                         AC_DEFINE(DISABLE_LOGIN)
 263                         LIBS="$LIBS -lsecurity -ldb -lm -laud"
 264                 else
 265                         AC_MSG_RESULT(no)
 266                 fi
 267         fi
 268         ;;
 269
 270 *-*-nto-qnx)
 271         AC_DEFINE(USE_PIPES)
 272         AC_DEFINE(NO_X11_UNIX_SOCKETS)
 273         AC_DEFINE(MISSING_NFDBITS)
 274         AC_DEFINE(MISSING_HOWMANY)
 275         AC_DEFINE(MISSING_FD_MASK)
 276         ;;
 277 esac
 278
 279 # Allow user to specify flags
 280 AC_ARG_WITH(cflags,
 281         [  --with-cflags           Specify additional flags to pass to compiler],
 282         [
 283                 if test "x$withval" != "xno" ; then
 284                         CFLAGS="$CFLAGS $withval"
 285                 fi
 286         ]
 287 )
 288 AC_ARG_WITH(cppflags,
 289         [  --with-cppflags         Specify additional flags to pass to preprocessor] ,
 290         [
 291                 if test "x$withval" != "xno"; then
 292                         CPPFLAGS="$CPPFLAGS $withval"
 293                 fi
 294         ]
 295 )
 296 AC_ARG_WITH(ldflags,
 297         [  --with-ldflags          Specify additional flags to pass to linker],
 298         [
 299                 if test "x$withval" != "xno" ; then
 300                         LDFLAGS="$LDFLAGS $withval"
 301                 fi
 302         ]
 303 )
 304 AC_ARG_WITH(libs,
 305         [  --with-libs             Specify additional libraries to link with],
 306         [
 307                 if test "x$withval" != "xno" ; then
 308                         LIBS="$LIBS $withval"
 309                 fi
 310         ]
 311 )
 312
 313 # Checks for header files.
 314 AC_CHECK_HEADERS(bstring.h crypt.h endian.h floatingpoint.h \
 315         getopt.h glob.h lastlog.h limits.h login.h \
 316         login_cap.h maillock.h netdb.h netgroup.h \
 317         netinet/in_systm.h paths.h poll.h pty.h \
 318         rpc/types.h security/pam_appl.h shadow.h stddef.h stdint.h \
 319         strings.h sys/bitypes.h sys/bsdtty.h sys/cdefs.h \
 320         sys/mman.h sys/poll.h sys/select.h sys/stat.h \
 321         sys/stropts.h sys/sysmacros.h sys/time.h \
 322         sys/un.h time.h ttyent.h usersec.h \
 323         util.h utime.h utmp.h utmpx.h)
 324
 325 # Checks for libraries.
 326 AC_CHECK_FUNC(yp_match, , AC_CHECK_LIB(nsl, yp_match))
 327 AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
 328
 329 dnl SCO OS3 needs this for libwrap
 330 if test "x$with_tcp_wrappers" != "xno" ; then
 331     if test "x$do_sco3_extra_lib_check" = "xyes" ; then
 332         AC_CHECK_LIB(rpc, innetgr, LIBS="-lrpc -lyp -lrpc $LIBS" , , -lyp -lrpc)
 333     fi
 334 fi
 335
 336 AC_CHECK_FUNC(getspnam, ,
 337         AC_CHECK_LIB(gen, getspnam, LIBS="$LIBS -lgen"))
 338
 339 AC_ARG_WITH(rpath,
 340         [  --without-rpath         Disable auto-added -R linker paths],
 341         [
 342                 if test "x$withval" = "xno" ; then
 343                         need_dash_r=""
 344                 fi
 345                 if test "x$withval" = "xyes" ; then
 346                         need_dash_r=1
 347                 fi
 348         ]
 349 )
 350
 351 dnl zlib is required
 352 AC_ARG_WITH(zlib,
 353         [  --with-zlib=PATH        Use zlib in PATH],
 354         [
 355                 if test "x$withval" = "xno" ; then
 356                         AC_MSG_ERROR([*** zlib is required ***])
 357                 fi
 358                 if test -d "$withval/lib"; then
 359                         if test -n "${need_dash_r}"; then
 360                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 361                         else
 362                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 363                         fi
 364                 else
 365                         if test -n "${need_dash_r}"; then
 366                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 367                         else
 368                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 369                         fi
 370                 fi
 371                 if test -d "$withval/include"; then
 372                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 373                 else
 374                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 375                 fi
 376         ]
 377 )
 378
 379 AC_CHECK_LIB(z, deflate, ,AC_MSG_ERROR([*** zlib missing - please install first or check config.log ***]))
 380
 381 dnl UnixWare 2.x
 382 AC_CHECK_FUNC(strcasecmp,
 383         [], [ AC_CHECK_LIB(resolv, strcasecmp, LIBS="$LIBS -lresolv") ]
 384 )
 385 AC_CHECK_FUNC(utimes,
 386         [], [ AC_CHECK_LIB(c89, utimes, LIBS="$LIBS -lc89") ]
 387 )
 388
 389 dnl    Checks for libutil functions
 390 AC_CHECK_HEADERS(libutil.h)
 391 AC_SEARCH_LIBS(login, util bsd, [AC_DEFINE(HAVE_LOGIN)])
 392 AC_CHECK_FUNCS(logout updwtmp logwtmp)
 393
 394 AC_FUNC_STRFTIME
 395
 396 # Check for ALTDIRFUNC glob() extension
 397 AC_MSG_CHECKING(for GLOB_ALTDIRFUNC support)
 398 AC_EGREP_CPP(FOUNDIT,
 399         [
 400                 #include <glob.h>
 401                 #ifdef GLOB_ALTDIRFUNC
 402                 FOUNDIT
 403                 #endif
 404         ],
 405         [
 406                 AC_DEFINE(GLOB_HAS_ALTDIRFUNC)
 407                 AC_MSG_RESULT(yes)
 408         ],
 409         [
 410                 AC_MSG_RESULT(no)
 411         ]
 412 )
 413
 414 # Check for g.gl_matchc glob() extension
 415 AC_MSG_CHECKING(for gl_matchc field in glob_t)
 416 AC_EGREP_CPP(FOUNDIT,
 417         [
 418                 #include <glob.h>
 419                 int main(void){glob_t g; g.gl_matchc = 1;}
 420         ],
 421         [
 422                 AC_DEFINE(GLOB_HAS_GL_MATCHC)
 423                 AC_MSG_RESULT(yes)
 424         ],
 425         [
 426                 AC_MSG_RESULT(no)
 427         ]
 428 )
 429
 430 AC_MSG_CHECKING([whether struct dirent allocates space for d_name])
 431 AC_TRY_RUN(
 432         [
 433 #include <sys/types.h>
 434 #include <dirent.h>
 435 int main(void){struct dirent d;return(sizeof(d.d_name)<=sizeof(char));}
 436         ],
 437         [AC_MSG_RESULT(yes)],
 438         [
 439                 AC_MSG_RESULT(no)
 440                 AC_DEFINE(BROKEN_ONE_BYTE_DIRENT_D_NAME)
 441         ]
 442 )
 443
 444 # Check whether user wants S/Key support
 445 SKEY_MSG="no"
 446 AC_ARG_WITH(skey,
 447         [  --with-skey[[=PATH]]      Enable S/Key support
 448                             (optionally in PATH)],
 449         [
 450                 if test "x$withval" != "xno" ; then
 451
 452                         if test "x$withval" != "xyes" ; then
 453                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
 454                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
 455                         fi
 456
 457                         AC_DEFINE(SKEY)
 458                         LIBS="-lskey $LIBS"
 459                         SKEY_MSG="yes"
 460
 461                         AC_MSG_CHECKING([for s/key support])
 462                         AC_TRY_RUN(
 463                                 [
 464 #include <stdio.h>
 465 #include <skey.h>
 466 int main() { char *ff = skey_keyinfo(""); ff=""; return 0; }
 467                                 ],
 468                                 [AC_MSG_RESULT(yes)],
 469                                 [
 470                                         AC_MSG_RESULT(no)
 471                                         AC_MSG_ERROR([** Incomplete or missing s/key libraries.])
 472                                 ])
 473                 fi
 474         ]
 475 )
 476
 477 # Check whether user wants TCP wrappers support
 478 TCPW_MSG="no"
 479 AC_ARG_WITH(tcp-wrappers,
 480         [  --with-tcp-wrappers[[=PATH]]      Enable tcpwrappers support
 481                             (optionally in PATH)],
 482         [
 483                 if test "x$withval" != "xno" ; then
 484                         saved_LIBS="$LIBS"
 485                         saved_LDFLAGS="$LDFLAGS"
 486                         saved_CPPFLAGS="$CPPFLAGS"
 487                         if test -n "${withval}" -a "${withval}" != "yes"; then
 488                                 if test -d "${withval}/lib"; then
 489                                         if test -n "${need_dash_r}"; then
 490                                                 LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
 491                                         else
 492                                                 LDFLAGS="-L${withval}/lib ${LDFLAGS}"
 493                                         fi
 494                                 else
 495                                         if test -n "${need_dash_r}"; then
 496                                                 LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
 497                                         else
 498                                                 LDFLAGS="-L${withval} ${LDFLAGS}"
 499                                         fi
 500                                 fi
 501                                 if test -d "${withval}/include"; then
 502                                         CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
 503                                 else
 504                                         CPPFLAGS="-I${withval} ${CPPFLAGS}"
 505                                 fi
 506                         fi
 507                         LIBWRAP="-lwrap"
 508                         LIBS="$LIBWRAP $LIBS"
 509                         AC_MSG_CHECKING(for libwrap)
 510                         AC_TRY_LINK(
 511                                 [
 512 #include <tcpd.h>
 513                                         int deny_severity = 0, allow_severity = 0;
 514                                 ],
 515                                 [hosts_access(0);],
 516                                 [
 517                                         AC_MSG_RESULT(yes)
 518                                         AC_DEFINE(LIBWRAP)
 519                                         AC_SUBST(LIBWRAP)
 520                                         TCPW_MSG="yes"
 521                                 ],
 522                                 [
 523                                         AC_MSG_ERROR([*** libwrap missing])
 524                                 ]
 525                         )
 526                         LIBS="$saved_LIBS"
 527                 fi
 528         ]
 529 )
 530
 531 dnl    Checks for library functions.
 532 AC_CHECK_FUNCS(arc4random b64_ntop bcopy bindresvport_sa \
 533         clock fchmod fchown freeaddrinfo futimes gai_strerror \
 534         getaddrinfo getcwd getgrouplist getnameinfo getopt \
 535         getrlimit getrusage getttyent glob inet_aton inet_ntoa \
 536         inet_ntop innetgr login_getcapbool md5_crypt memmove \
 537         mkdtemp mmap openpty readpassphrase realpath \
 538         rresvport_af setdtablesize setegid setenv seteuid \
 539         setlogin setproctitle setresgid setreuid setrlimit \
 540         setsid setvbuf sigaction sigvec snprintf strerror \
 541         strlcat strlcpy strmode strsep sysconf tcgetpgrp utimes \
 542         vhangup vsnprintf waitpid __b64_ntop _getpty)
 543
 544 dnl IRIX and Solaris 2.5.1 have dirname() in libgen
 545 AC_CHECK_FUNCS(dirname, [AC_CHECK_HEADERS(libgen.h)] ,[
 546         AC_CHECK_LIB(gen, dirname,[
 547                 AC_CACHE_CHECK([for broken dirname],
 548                         ac_cv_have_broken_dirname, [
 549                         save_LIBS="$LIBS"
 550                         LIBS="$LIBS -lgen"
 551                         AC_TRY_RUN(
 552                                 [
 553 #include <libgen.h>
 554 #include <string.h>
 555
 556 int main(int argc, char **argv) {
 557     char *s, buf[32];
 558
 559     strncpy(buf,"/etc", 32);
 560     s = dirname(buf);
 561     if (!s || strncmp(s, "/", 32) != 0) {
 562         exit(1);
 563     } else {
 564         exit(0);
 565     }
 566 }
 567                                 ],
 568                                 [ ac_cv_have_broken_dirname="no" ],
 569                                 [ ac_cv_have_broken_dirname="yes" ]
 570                         )
 571                         LIBS="$save_LIBS"
 572                 ])
 573                 if test "x$ac_cv_have_broken_dirname" = "xno" ; then
 574                         LIBS="$LIBS -lgen"
 575                         AC_DEFINE(HAVE_DIRNAME)
 576                         AC_CHECK_HEADERS(libgen.h)
 577                 fi
 578         ])
 579 ])
 580
 581 dnl    Checks for time functions
 582 AC_CHECK_FUNCS(gettimeofday time)
 583 dnl    Checks for utmp functions
 584 AC_CHECK_FUNCS(endutent getutent getutid getutline pututline setutent)
 585 AC_CHECK_FUNCS(utmpname)
 586 dnl    Checks for utmpx functions
 587 AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
 588 AC_CHECK_FUNCS(setutxent utmpxname)
 589
 590 AC_CHECK_FUNC(getuserattr,
 591         [AC_DEFINE(HAVE_GETUSERATTR)],
 592         [AC_CHECK_LIB(s, getuserattr, [LIBS="$LIBS -ls"; AC_DEFINE(HAVE_GETUSERATTR)])]
 593 )
 594
 595 AC_CHECK_FUNC(daemon,
 596         [AC_DEFINE(HAVE_DAEMON)],
 597         [AC_CHECK_LIB(bsd, daemon, [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 598 )
 599
 600 AC_CHECK_FUNC(getpagesize,
 601         [AC_DEFINE(HAVE_GETPAGESIZE)],
 602         [AC_CHECK_LIB(ucb, getpagesize, [LIBS="$LIBS -lucb"; AC_DEFINE(HAVE_GETPAGESIZE)])]
 603 )
 604
 605 # Check for broken snprintf
 606 if test "x$ac_cv_func_snprintf" = "xyes" ; then
 607         AC_MSG_CHECKING([whether snprintf correctly terminates long strings])
 608         AC_TRY_RUN(
 609                 [
 610 #include <stdio.h>
 611 int main(void){char b[5];snprintf(b,5,"123456789");return(b[4]!='\0');}
 612                 ],
 613                 [AC_MSG_RESULT(yes)],
 614                 [
 615                         AC_MSG_RESULT(no)
 616                         AC_DEFINE(BROKEN_SNPRINTF)
 617                         AC_MSG_WARN([****** Your snprintf() function is broken, complain to your vendor])
 618                 ]
 619         )
 620 fi
 621
 622 AC_FUNC_GETPGRP
 623
 624 # Check for PAM libs
 625 PAM_MSG="no"
 626 AC_ARG_WITH(pam,
 627         [  --with-pam              Enable PAM support ],
 628         [
 629                 if test "x$withval" != "xno" ; then
 630                         if test "x$ac_cv_header_security_pam_appl_h" != "xyes" ; then
 631                                 AC_MSG_ERROR([PAM headers not found])
 632                         fi
 633
 634                         AC_CHECK_LIB(dl, dlopen, , )
 635                         AC_CHECK_LIB(pam, pam_set_item, , AC_MSG_ERROR([*** libpam missing]))
 636                         AC_CHECK_FUNCS(pam_getenvlist)
 637
 638                         disable_shadow=yes
 639                         PAM_MSG="yes"
 640
 641                         AC_DEFINE(USE_PAM)
 642                         if test $ac_cv_lib_dl_dlopen = yes; then
 643                                 LIBPAM="-lpam -ldl"
 644                         else
 645                                 LIBPAM="-lpam"
 646                         fi
 647                         AC_SUBST(LIBPAM)
 648                 fi
 649         ]
 650 )
 651
 652 # Check for older PAM
 653 if test "x$PAM_MSG" = "xyes" ; then
 654         # Check PAM strerror arguments (old PAM)
 655         AC_MSG_CHECKING([whether pam_strerror takes only one argument])
 656         AC_TRY_COMPILE(
 657                 [
 658 #include <stdlib.h>
 659 #include <security/pam_appl.h>
 660                 ],
 661                 [(void)pam_strerror((pam_handle_t *)NULL, -1);],
 662                 [AC_MSG_RESULT(no)],
 663                 [
 664                         AC_DEFINE(HAVE_OLD_PAM)
 665                         AC_MSG_RESULT(yes)
 666                         PAM_MSG="yes (old library)"
 667                 ]
 668         )
 669 fi
 670
 671 # The big search for OpenSSL
 672 AC_ARG_WITH(ssl-dir,
 673         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
 674         [
 675                 if test "x$withval" != "xno" ; then
 676                         tryssldir=$withval
 677                 fi
 678         ]
 679 )
 680
 681 saved_LIBS="$LIBS"
 682 saved_LDFLAGS="$LDFLAGS"
 683 saved_CPPFLAGS="$CPPFLAGS"
 684 if test "x$prefix" != "xNONE" ; then
 685         tryssldir="$tryssldir $prefix"
 686 fi
 687 AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssldir, [
 688         for ssldir in $tryssldir "" /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/pkg /opt /opt/openssl ; do
 689                 CPPFLAGS="$saved_CPPFLAGS"
 690                 LDFLAGS="$saved_LDFLAGS"
 691                 LIBS="$saved_LIBS -lcrypto"
 692
 693                 # Skip directories if they don't exist
 694                 if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
 695                         continue;
 696                 fi
 697                 if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
 698                         # Try to use $ssldir/lib if it exists, otherwise
 699                         # $ssldir
 700                         if test -d "$ssldir/lib" ; then
 701                                 LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
 702                                 if test ! -z "$need_dash_r" ; then
 703                                         LDFLAGS="-R$ssldir/lib $LDFLAGS"
 704                                 fi
 705                         else
 706                                 LDFLAGS="-L$ssldir $saved_LDFLAGS"
 707                                 if test ! -z "$need_dash_r" ; then
 708                                         LDFLAGS="-R$ssldir $LDFLAGS"
 709                                 fi
 710                         fi
 711                         # Try to use $ssldir/include if it exists, otherwise
 712                         # $ssldir
 713                         if test -d "$ssldir/include" ; then
 714                                 CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
 715                         else
 716                                 CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
 717                         fi
 718                 fi
 719
 720                 # Basic test to check for compatible version and correct linking
 721                 # *does not* test for RSA - that comes later.
 722                 AC_TRY_RUN(
 723                         [
 724 #include <string.h>
 725 #include <openssl/rand.h>
 726 int main(void)
 727 {
 728         char a[2048];
 729         memset(a, 0, sizeof(a));
 730         RAND_add(a, sizeof(a), sizeof(a));
 731         return(RAND_status() <= 0);
 732 }
 733                         ],
 734                         [
 735                                 found_crypto=1
 736                                 break;
 737                         ], []
 738                 )
 739
 740                 if test ! -z "$found_crypto" ; then
 741                         break;
 742                 fi
 743         done
 744
 745         if test -z "$found_crypto" ; then
 746                 AC_MSG_ERROR([Could not find working OpenSSL library, please install or check config.log])
 747         fi
 748         if test -z "$ssldir" ; then
 749                 ssldir="(system)"
 750         fi
 751
 752         ac_cv_openssldir=$ssldir
 753 ])
 754
 755 if (test ! -z "$ac_cv_openssldir" && test "x$ac_cv_openssldir" != "x(system)") ; then
 756         AC_DEFINE(HAVE_OPENSSL)
 757         dnl Need to recover ssldir - test above runs in subshell
 758         ssldir=$ac_cv_openssldir
 759         if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
 760                 # Try to use $ssldir/lib if it exists, otherwise
 761                 # $ssldir
 762                 if test -d "$ssldir/lib" ; then
 763                         LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
 764                         if test ! -z "$need_dash_r" ; then
 765                                 LDFLAGS="-R$ssldir/lib $LDFLAGS"
 766                         fi
 767                 else
 768                         LDFLAGS="-L$ssldir $saved_LDFLAGS"
 769                         if test ! -z "$need_dash_r" ; then
 770                                 LDFLAGS="-R$ssldir $LDFLAGS"
 771                         fi
 772                 fi
 773                 # Try to use $ssldir/include if it exists, otherwise
 774                 # $ssldir
 775                 if test -d "$ssldir/include" ; then
 776                         CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
 777                 else
 778                         CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
 779                 fi
 780         fi
 781 fi
 782 LIBS="$saved_LIBS -lcrypto"
 783
 784 # Now test RSA support
 785 saved_LIBS="$LIBS"
 786 AC_MSG_CHECKING([for RSA support])
 787 for WANTS_RSAREF in "" 1 ; do
 788         if test -z "$WANTS_RSAREF" ; then
 789                 LIBS="$saved_LIBS"
 790         else
 791                 LIBS="$saved_LIBS -lRSAglue -lrsaref"
 792         fi
 793         AC_TRY_RUN([
 794 #include <string.h>
 795 #include <openssl/rand.h>
 796 #include <openssl/rsa.h>
 797 #include <openssl/bn.h>
 798 #include <openssl/sha.h>
 799 int main(void)
 800 {
 801         int num; RSA *key; static unsigned char p_in[] = "blahblah";
 802         unsigned char c[256], p[256];
 803         memset(c, 0, sizeof(c)); RAND_add(c, sizeof(c), sizeof(c));
 804         if ((key=RSA_generate_key(512, 3, NULL, NULL))==NULL) return(1);
 805         num = RSA_public_encrypt(sizeof(p_in) - 1, p_in, c, key, RSA_PKCS1_PADDING);
 806         return(-1 == RSA_private_decrypt(num, c, p, key, RSA_PKCS1_PADDING));
 807 }
 808         ],
 809         [
 810                 rsa_works=1
 811                 break;
 812         ], [])
 813 done
 814 LIBS="$saved_LIBS"
 815
 816 if test ! -z "$no_rsa" ; then
 817         AC_MSG_RESULT(disabled)
 818         RSA_MSG="disabled"
 819 else
 820         if test -z "$rsa_works" ; then
 821                 AC_MSG_WARN([*** No RSA support found *** ])
 822                 RSA_MSG="no"
 823         else
 824                 if test -z "$WANTS_RSAREF" ; then
 825                         AC_MSG_RESULT(yes)
 826                         RSA_MSG="yes"
 827                 else
 828                         RSA_MSG="yes (using RSAref)"
 829                         AC_MSG_RESULT(using RSAref)
 830                         LIBS="$LIBS -lcrypto -lRSAglue -lrsaref"
 831                 fi
 832         fi
 833 fi
 834
 835 # Sanity check OpenSSL headers
 836 AC_MSG_CHECKING([whether OpenSSL's headers match the library])
 837 AC_TRY_RUN(
 838         [
 839 #include <string.h>
 840 #include <openssl/opensslv.h>
 841 int main(void) { return(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
 842         ],
 843         [
 844                 AC_MSG_RESULT(yes)
 845         ],
 846         [
 847                 AC_MSG_RESULT(no)
 848                 AC_MSG_ERROR(Your OpenSSL headers do not match your library)
 849         ]
 850 )
 851
 852 # Some Linux systems (Slackware) need crypt() from libcrypt, *not* the
 853 # version in OpenSSL. Skip this for PAM
 854 if test "x$PAM_MSG" = "xno" -a "x$check_for_libcrypt_later" = "x1"; then
 855         AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt")
 856 fi
 857
 858
 859 ### Configure cryptographic random number support
 860
 861 # Check wheter OpenSSL seeds itself
 862 AC_MSG_CHECKING([whether OpenSSL's PRNG is internally seeded])
 863 AC_TRY_RUN(
 864         [
 865 #include <string.h>
 866 #include <openssl/rand.h>
 867 int main(void) { return(RAND_status() == 1 ? 0 : 1); }
 868         ],
 869         [
 870                 OPENSSL_SEEDS_ITSELF=yes
 871                 AC_MSG_RESULT(yes)
 872         ],
 873         [
 874                 AC_MSG_RESULT(no)
 875                 # Default to use of the rand helper if OpenSSL doesn't
 876                 # seed itself
 877                 USE_RAND_HELPER=yes
 878         ]
 879 )
 880
 881
 882 # Do we want to force the use of the rand helper?
 883 AC_ARG_WITH(rand-helper,
 884         [  --with-rand-helper      Use subprocess to gather strong randomness ],
 885         [
 886                 if test "x$withval" = "xno" ; then
 887                         # Force use of OpenSSL's internal RNG, even if
 888                         # the previous test showed it to be unseeded.
 889                         if test -z "$OPENSSL_SEEDS_ITSELF" ; then
 890                                 AC_MSG_WARN([*** Forcing use of OpenSSL's non-self-seeding PRNG])
 891                                 OPENSSL_SEEDS_ITSELF=yes
 892                                 USE_RAND_HELPER=""
 893                         fi
 894                 else
 895                         USE_RAND_HELPER=yes
 896                 fi
 897         ],
 898 )
 899
 900 # Which randomness source do we use?
 901 if test ! -z "$OPENSSL_SEEDS_ITSELF" -a -z "$USE_RAND_HELPER" ; then
 902         # OpenSSL only
 903         AC_DEFINE(OPENSSL_PRNG_ONLY)
 904         RAND_MSG="OpenSSL internal ONLY"
 905         INSTALL_SSH_RAND_HELPER=""
 906 elif test ! -z "$USE_RAND_HELPER" ; then
 907         # install rand helper
 908         RAND_MSG="ssh-rand-helper"
 909         INSTALL_SSH_RAND_HELPER="yes"
 910 fi
 911 AC_SUBST(INSTALL_SSH_RAND_HELPER)
 912
 913 ### Configuration of ssh-rand-helper
 914
 915 # PRNGD TCP socket
 916 AC_ARG_WITH(prngd-port,
 917         [  --with-prngd-port=PORT  read entropy from PRNGD/EGD TCP localhost:PORT],
 918         [
 919                 case "$withval" in
 920                 no)
 921                         withval=""
 922                         ;;
 923                 [[0-9]]*)
 924                         ;;
 925                 *)
 926                         AC_MSG_ERROR(You must specify a numeric port number for --with-prngd-port)
 927                         ;;
 928                 esac
 929                 if test ! -z "$withval" ; then
 930                         PRNGD_PORT="$withval"
 931                         AC_DEFINE_UNQUOTED(PRNGD_PORT, $PRNGD_PORT)
 932                 fi
 933         ]
 934 )
 935
 936 # PRNGD Unix domain socket
 937 AC_ARG_WITH(prngd-socket,
 938         [  --with-prngd-socket=FILE read entropy from PRNGD/EGD socket FILE (default=/var/run/egd-pool)],
 939         [
 940                 case "$withval" in
 941                 yes)
 942                         withval="/var/run/egd-pool"
 943                         ;;
 944                 no)
 945                         withval=""
 946                         ;;
 947                 /*)
 948                         ;;
 949                 *)
 950                         AC_MSG_ERROR(You must specify an absolute path to the entropy socket)
 951                         ;;
 952                 esac
 953
 954                 if test ! -z "$withval" ; then
 955                         if test ! -z "$PRNGD_PORT" ; then
 956                                 AC_MSG_ERROR(You may not specify both a PRNGD/EGD port and socket)
 957                         fi
 958                         if test ! -r "$withval" ; then
 959                                 AC_MSG_WARN(Entropy socket is not readable)
 960                         fi
 961                         PRNGD_SOCKET="$withval"
 962                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
 963                 fi
 964         ],
 965         [
 966                 # Check for existing socket only if we don't have a random device already
 967                 if test "$USE_RAND_HELPER" = yes ; then
 968                         AC_MSG_CHECKING(for PRNGD/EGD socket)
 969                         # Insert other locations here
 970                         for sock in /var/run/egd-pool /dev/egd-pool /etc/entropy; do
 971                                 if test -r $sock && $TEST_MINUS_S_SH -c "test -S $sock -o -p $sock" ; then
 972                                         PRNGD_SOCKET="$sock"
 973                                         AC_DEFINE_UNQUOTED(PRNGD_SOCKET, "$PRNGD_SOCKET")
 974                                         break;
 975                                 fi
 976                         done
 977                         if test ! -z "$PRNGD_SOCKET" ; then
 978                                 AC_MSG_RESULT($PRNGD_SOCKET)
 979                         else
 980                                 AC_MSG_RESULT(not found)
 981                         fi
 982                 fi
 983         ]
 984 )
 985
 986 # Change default command timeout for hashing entropy source
 987 entropy_timeout=200
 988 AC_ARG_WITH(entropy-timeout,
 989         [  --with-entropy-timeout  Specify entropy gathering command timeout (msec)],
 990         [
 991                 if test "x$withval" != "xno" ; then
 992                         entropy_timeout=$withval
 993                 fi
 994         ]
 995 )
 996
 997 AC_DEFINE_UNQUOTED(ENTROPY_TIMEOUT_MSEC, $entropy_timeout)
 998
 999 # We do this little dance with the search path to insure
1000 # that programs that we select for use by installed programs
1001 # (which may be run by the super-user) come from trusted
1002 # locations before they come from the user's private area.
1003 # This should help avoid accidentally configuring some
1004 # random version of a program in someone's personal bin.
1005
1006 OPATH=$PATH
1007 PATH=/bin:/usr/bin
1008 /bin/test -L /bin 2> /dev/null && PATH=/usr/bin
1009 test -d /sbin && PATH=$PATH:/sbin
1010 test -d /usr/sbin && PATH=$PATH:/usr/sbin
1011 PATH=$PATH:/etc:$OPATH
1012
1013 # These programs are used by the command hashing source to gather entropy
1014 OSSH_PATH_ENTROPY_PROG(PROG_LS, ls)
1015 OSSH_PATH_ENTROPY_PROG(PROG_NETSTAT, netstat)
1016 OSSH_PATH_ENTROPY_PROG(PROG_ARP, arp)
1017 OSSH_PATH_ENTROPY_PROG(PROG_IFCONFIG, ifconfig)
1018 OSSH_PATH_ENTROPY_PROG(PROG_JSTAT, jstat)
1019 OSSH_PATH_ENTROPY_PROG(PROG_PS, ps)
1020 OSSH_PATH_ENTROPY_PROG(PROG_SAR, sar)
1021 OSSH_PATH_ENTROPY_PROG(PROG_W, w)
1022 OSSH_PATH_ENTROPY_PROG(PROG_WHO, who)
1023 OSSH_PATH_ENTROPY_PROG(PROG_LAST, last)
1024 OSSH_PATH_ENTROPY_PROG(PROG_LASTLOG, lastlog)
1025 OSSH_PATH_ENTROPY_PROG(PROG_DF, df)
1026 OSSH_PATH_ENTROPY_PROG(PROG_VMSTAT, vmstat)
1027 OSSH_PATH_ENTROPY_PROG(PROG_UPTIME, uptime)
1028 OSSH_PATH_ENTROPY_PROG(PROG_IPCS, ipcs)
1029 OSSH_PATH_ENTROPY_PROG(PROG_TAIL, tail)
1030 # restore PATH
1031 PATH=$OPATH
1032
1033 # Where does ssh-rand-helper get its randomness from?
1034 INSTALL_SSH_PRNG_CMDS=""
1035 if test ! -z "$INSTALL_SSH_RAND_HELPER" ; then
1036         if test ! -z "$PRNGD_PORT" ; then
1037                 RAND_HELPER_MSG="TCP localhost:$PRNGD_PORT"
1038         elif test ! -z "$PRNGD_SOCKET" ; then
1039                 RAND_HELPER_MSG="Unix domain socket \"$PRNGD_SOCKET\""
1040         else
1041                 RAND_HELPER_MSG="Command hashing (timeout $entropy_timeout)"
1042                 RAND_HELPER_CMDHASH=yes
1043                 INSTALL_SSH_PRNG_CMDS="yes"
1044         fi
1045 fi
1046 AC_SUBST(INSTALL_SSH_PRNG_CMDS)
1047
1048
1049 # Cheap hack to ensure NEWS-OS libraries are arranged right.
1050 if test ! -z "$SONY" ; then
1051   LIBS="$LIBS -liberty";
1052 fi
1053
1054 # Checks for data types
1055 AC_CHECK_SIZEOF(char, 1)
1056 AC_CHECK_SIZEOF(short int, 2)
1057 AC_CHECK_SIZEOF(int, 4)
1058 AC_CHECK_SIZEOF(long int, 4)
1059 AC_CHECK_SIZEOF(long long int, 8)
1060
1061 # More checks for data types
1062 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
1063         AC_TRY_COMPILE(
1064                 [ #include <sys/types.h> ],
1065                 [ u_int a; a = 1;],
1066                 [ ac_cv_have_u_int="yes" ],
1067                 [ ac_cv_have_u_int="no" ]
1068         )
1069 ])
1070 if test "x$ac_cv_have_u_int" = "xyes" ; then
1071         AC_DEFINE(HAVE_U_INT)
1072         have_u_int=1
1073 fi
1074
1075 AC_CACHE_CHECK([for intXX_t types], ac_cv_have_intxx_t, [
1076         AC_TRY_COMPILE(
1077                 [ #include <sys/types.h> ],
1078                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1079                 [ ac_cv_have_intxx_t="yes" ],
1080                 [ ac_cv_have_intxx_t="no" ]
1081         )
1082 ])
1083 if test "x$ac_cv_have_intxx_t" = "xyes" ; then
1084         AC_DEFINE(HAVE_INTXX_T)
1085         have_intxx_t=1
1086 fi
1087
1088 if (test -z "$have_intxx_t" && \
1089            test "x$ac_cv_header_stdint_h" = "xyes")
1090 then
1091     AC_MSG_CHECKING([for intXX_t types in stdint.h])
1092         AC_TRY_COMPILE(
1093                 [ #include <stdint.h> ],
1094                 [ int8_t a; int16_t b; int32_t c; a = b = c = 1;],
1095                 [
1096                         AC_DEFINE(HAVE_INTXX_T)
1097                         AC_MSG_RESULT(yes)
1098                 ],
1099                 [ AC_MSG_RESULT(no) ]
1100         )
1101 fi
1102
1103 AC_CACHE_CHECK([for int64_t type], ac_cv_have_int64_t, [
1104         AC_TRY_COMPILE(
1105                 [ #include <sys/types.h> ],
1106                 [ int64_t a; a = 1;],
1107                 [ ac_cv_have_int64_t="yes" ],
1108                 [ ac_cv_have_int64_t="no" ]
1109         )
1110 ])
1111 if test "x$ac_cv_have_int64_t" = "xyes" ; then
1112         AC_DEFINE(HAVE_INT64_T)
1113         have_int64_t=1
1114 fi
1115
1116 if test -z "$have_int64_t" ; then
1117     AC_MSG_CHECKING([for int64_t type in sys/socket.h])
1118         AC_TRY_COMPILE(
1119                 [ #include <sys/socket.h> ],
1120                 [ int64_t a; a = 1],
1121                 [
1122                         AC_DEFINE(HAVE_INT64_T)
1123                         AC_MSG_RESULT(yes)
1124                 ],
1125                 [ AC_MSG_RESULT(no) ]
1126         )
1127 fi
1128
1129 if test -z "$have_int64_t" ; then
1130     AC_MSG_CHECKING([for int64_t type in sys/bitypes.h])
1131         AC_TRY_COMPILE(
1132                 [ #include <sys/bitypes.h> ],
1133                 [ int64_t a; a = 1],
1134                 [
1135                         AC_DEFINE(HAVE_INT64_T)
1136                         AC_MSG_RESULT(yes)
1137                 ],
1138                 [ AC_MSG_RESULT(no) ]
1139         )
1140 fi
1141
1142 AC_CACHE_CHECK([for u_intXX_t types], ac_cv_have_u_intxx_t, [
1143         AC_TRY_COMPILE(
1144                 [ #include <sys/types.h> ],
1145                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1146                 [ ac_cv_have_u_intxx_t="yes" ],
1147                 [ ac_cv_have_u_intxx_t="no" ]
1148         )
1149 ])
1150 if test "x$ac_cv_have_u_intxx_t" = "xyes" ; then
1151         AC_DEFINE(HAVE_U_INTXX_T)
1152         have_u_intxx_t=1
1153 fi
1154
1155 if test -z "$have_u_intxx_t" ; then
1156     AC_MSG_CHECKING([for u_intXX_t types in sys/socket.h])
1157         AC_TRY_COMPILE(
1158                 [ #include <sys/socket.h> ],
1159                 [ u_int8_t a; u_int16_t b; u_int32_t c; a = b = c = 1;],
1160                 [
1161                         AC_DEFINE(HAVE_U_INTXX_T)
1162                         AC_MSG_RESULT(yes)
1163                 ],
1164                 [ AC_MSG_RESULT(no) ]
1165         )
1166 fi
1167
1168 AC_CACHE_CHECK([for u_int64_t types], ac_cv_have_u_int64_t, [
1169         AC_TRY_COMPILE(
1170                 [ #include <sys/types.h> ],
1171                 [ u_int64_t a; a = 1;],
1172                 [ ac_cv_have_u_int64_t="yes" ],
1173                 [ ac_cv_have_u_int64_t="no" ]
1174         )
1175 ])
1176 if test "x$ac_cv_have_u_int64_t" = "xyes" ; then
1177         AC_DEFINE(HAVE_U_INT64_T)
1178         have_u_int64_t=1
1179 fi
1180
1181 if test -z "$have_u_int64_t" ; then
1182     AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h])
1183         AC_TRY_COMPILE(
1184                 [ #include <sys/bitypes.h> ],
1185                 [ u_int64_t a; a = 1],
1186                 [
1187                         AC_DEFINE(HAVE_U_INT64_T)
1188                         AC_MSG_RESULT(yes)
1189                 ],
1190                 [ AC_MSG_RESULT(no) ]
1191         )
1192 fi
1193
1194 if test -z "$have_u_intxx_t" ; then
1195         AC_CACHE_CHECK([for uintXX_t types], ac_cv_have_uintxx_t, [
1196                 AC_TRY_COMPILE(
1197                         [
1198 #include <sys/types.h>
1199                         ],
1200                         [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1; ],
1201                         [ ac_cv_have_uintxx_t="yes" ],
1202                         [ ac_cv_have_uintxx_t="no" ]
1203                 )
1204         ])
1205         if test "x$ac_cv_have_uintxx_t" = "xyes" ; then
1206                 AC_DEFINE(HAVE_UINTXX_T)
1207         fi
1208 fi
1209
1210 if test -z "$have_uintxx_t" ; then
1211     AC_MSG_CHECKING([for uintXX_t types in stdint.h])
1212         AC_TRY_COMPILE(
1213                 [ #include <stdint.h> ],
1214                 [ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;],
1215                 [
1216                         AC_DEFINE(HAVE_UINTXX_T)
1217                         AC_MSG_RESULT(yes)
1218                 ],
1219                 [ AC_MSG_RESULT(no) ]
1220         )
1221 fi
1222
1223 if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \
1224            test "x$ac_cv_header_sys_bitypes_h" = "xyes")
1225 then
1226         AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
1227         AC_TRY_COMPILE(
1228                 [
1229 #include <sys/bitypes.h>
1230                 ],
1231                 [
1232                         int8_t a; int16_t b; int32_t c;
1233                         u_int8_t e; u_int16_t f; u_int32_t g;
1234                         a = b = c = e = f = g = 1;
1235                 ],
1236                 [
1237                         AC_DEFINE(HAVE_U_INTXX_T)
1238                         AC_DEFINE(HAVE_INTXX_T)
1239                         AC_MSG_RESULT(yes)
1240                 ],
1241                 [AC_MSG_RESULT(no)]
1242         )
1243 fi
1244
1245
1246 AC_CACHE_CHECK([for u_char], ac_cv_have_u_char, [
1247         AC_TRY_COMPILE(
1248                 [
1249 #include <sys/types.h>
1250                 ],
1251                 [ u_char foo; foo = 125; ],
1252                 [ ac_cv_have_u_char="yes" ],
1253                 [ ac_cv_have_u_char="no" ]
1254         )
1255 ])
1256 if test "x$ac_cv_have_u_char" = "xyes" ; then
1257         AC_DEFINE(HAVE_U_CHAR)
1258 fi
1259
1260 TYPE_SOCKLEN_T
1261
1262 AC_CHECK_TYPES(sig_atomic_t,,,[#include <signal.h>])
1263
1264 AC_CACHE_CHECK([for size_t], ac_cv_have_size_t, [
1265         AC_TRY_COMPILE(
1266                 [
1267 #include <sys/types.h>
1268                 ],
1269                 [ size_t foo; foo = 1235; ],
1270                 [ ac_cv_have_size_t="yes" ],
1271                 [ ac_cv_have_size_t="no" ]
1272         )
1273 ])
1274 if test "x$ac_cv_have_size_t" = "xyes" ; then
1275         AC_DEFINE(HAVE_SIZE_T)
1276 fi
1277
1278 AC_CACHE_CHECK([for ssize_t], ac_cv_have_ssize_t, [
1279         AC_TRY_COMPILE(
1280                 [
1281 #include <sys/types.h>
1282                 ],
1283                 [ ssize_t foo; foo = 1235; ],
1284                 [ ac_cv_have_ssize_t="yes" ],
1285                 [ ac_cv_have_ssize_t="no" ]
1286         )
1287 ])
1288 if test "x$ac_cv_have_ssize_t" = "xyes" ; then
1289         AC_DEFINE(HAVE_SSIZE_T)
1290 fi
1291
1292 AC_CACHE_CHECK([for clock_t], ac_cv_have_clock_t, [
1293         AC_TRY_COMPILE(
1294                 [
1295 #include <time.h>
1296                 ],
1297                 [ clock_t foo; foo = 1235; ],
1298                 [ ac_cv_have_clock_t="yes" ],
1299                 [ ac_cv_have_clock_t="no" ]
1300         )
1301 ])
1302 if test "x$ac_cv_have_clock_t" = "xyes" ; then
1303         AC_DEFINE(HAVE_CLOCK_T)
1304 fi
1305
1306 AC_CACHE_CHECK([for sa_family_t], ac_cv_have_sa_family_t, [
1307         AC_TRY_COMPILE(
1308                 [
1309 #include <sys/types.h>
1310 #include <sys/socket.h>
1311                 ],
1312                 [ sa_family_t foo; foo = 1235; ],
1313                 [ ac_cv_have_sa_family_t="yes" ],
1314                 [ AC_TRY_COMPILE(
1315                   [
1316 #include <sys/types.h>
1317 #include <sys/socket.h>
1318 #include <netinet/in.h>
1319                 ],
1320                 [ sa_family_t foo; foo = 1235; ],
1321                 [ ac_cv_have_sa_family_t="yes" ],
1322
1323                 [ ac_cv_have_sa_family_t="no" ]
1324         )]
1325         )
1326 ])
1327 if test "x$ac_cv_have_sa_family_t" = "xyes" ; then
1328         AC_DEFINE(HAVE_SA_FAMILY_T)
1329 fi
1330
1331 AC_CACHE_CHECK([for pid_t], ac_cv_have_pid_t, [
1332         AC_TRY_COMPILE(
1333                 [
1334 #include <sys/types.h>
1335                 ],
1336                 [ pid_t foo; foo = 1235; ],
1337                 [ ac_cv_have_pid_t="yes" ],
1338                 [ ac_cv_have_pid_t="no" ]
1339         )
1340 ])
1341 if test "x$ac_cv_have_pid_t" = "xyes" ; then
1342         AC_DEFINE(HAVE_PID_T)
1343 fi
1344
1345 AC_CACHE_CHECK([for mode_t], ac_cv_have_mode_t, [
1346         AC_TRY_COMPILE(
1347                 [
1348 #include <sys/types.h>
1349                 ],
1350                 [ mode_t foo; foo = 1235; ],
1351                 [ ac_cv_have_mode_t="yes" ],
1352                 [ ac_cv_have_mode_t="no" ]
1353         )
1354 ])
1355 if test "x$ac_cv_have_mode_t" = "xyes" ; then
1356         AC_DEFINE(HAVE_MODE_T)
1357 fi
1358
1359
1360 AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_have_struct_sockaddr_storage, [
1361         AC_TRY_COMPILE(
1362                 [
1363 #include <sys/types.h>
1364 #include <sys/socket.h>
1365                 ],
1366                 [ struct sockaddr_storage s; ],
1367                 [ ac_cv_have_struct_sockaddr_storage="yes" ],
1368                 [ ac_cv_have_struct_sockaddr_storage="no" ]
1369         )
1370 ])
1371 if test "x$ac_cv_have_struct_sockaddr_storage" = "xyes" ; then
1372         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
1373 fi
1374
1375 AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_have_struct_sockaddr_in6, [
1376         AC_TRY_COMPILE(
1377                 [
1378 #include <sys/types.h>
1379 #include <netinet/in.h>
1380                 ],
1381                 [ struct sockaddr_in6 s; s.sin6_family = 0; ],
1382                 [ ac_cv_have_struct_sockaddr_in6="yes" ],
1383                 [ ac_cv_have_struct_sockaddr_in6="no" ]
1384         )
1385 ])
1386 if test "x$ac_cv_have_struct_sockaddr_in6" = "xyes" ; then
1387         AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
1388 fi
1389
1390 AC_CACHE_CHECK([for struct in6_addr], ac_cv_have_struct_in6_addr, [
1391         AC_TRY_COMPILE(
1392                 [
1393 #include <sys/types.h>
1394 #include <netinet/in.h>
1395                 ],
1396                 [ struct in6_addr s; s.s6_addr[0] = 0; ],
1397                 [ ac_cv_have_struct_in6_addr="yes" ],
1398                 [ ac_cv_have_struct_in6_addr="no" ]
1399         )
1400 ])
1401 if test "x$ac_cv_have_struct_in6_addr" = "xyes" ; then
1402         AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
1403 fi
1404
1405 AC_CACHE_CHECK([for struct addrinfo], ac_cv_have_struct_addrinfo, [
1406         AC_TRY_COMPILE(
1407                 [
1408 #include <sys/types.h>
1409 #include <sys/socket.h>
1410 #include <netdb.h>
1411                 ],
1412                 [ struct addrinfo s; s.ai_flags = AI_PASSIVE; ],
1413                 [ ac_cv_have_struct_addrinfo="yes" ],
1414                 [ ac_cv_have_struct_addrinfo="no" ]
1415         )
1416 ])
1417 if test "x$ac_cv_have_struct_addrinfo" = "xyes" ; then
1418         AC_DEFINE(HAVE_STRUCT_ADDRINFO)
1419 fi
1420
1421 AC_CACHE_CHECK([for struct timeval], ac_cv_have_struct_timeval, [
1422         AC_TRY_COMPILE(
1423                 [ #include <sys/time.h> ],
1424                 [ struct timeval tv; tv.tv_sec = 1;],
1425                 [ ac_cv_have_struct_timeval="yes" ],
1426                 [ ac_cv_have_struct_timeval="no" ]
1427         )
1428 ])
1429 if test "x$ac_cv_have_struct_timeval" = "xyes" ; then
1430         AC_DEFINE(HAVE_STRUCT_TIMEVAL)
1431         have_struct_timeval=1
1432 fi
1433
1434 # If we don't have int64_t then we can't compile sftp-server.  So don't
1435 # even attempt to do it.
1436 if test "x$ac_cv_have_int64_t" = "xno" -a \
1437         "x$ac_cv_sizeof_long_int" != "x8" -a \
1438         "x$ac_cv_sizeof_long_long_int" = "x0" ; then
1439         NO_SFTP='#'
1440 else
1441 dnl test snprintf (broken on SCO w/gcc)
1442         AC_TRY_RUN(
1443                 [
1444 #include <stdio.h>
1445 #include <string.h>
1446 #ifdef HAVE_SNPRINTF
1447 main()
1448 {
1449         char buf[50];
1450         char expected_out[50];
1451         int mazsize = 50 ;
1452 #if (SIZEOF_LONG_INT == 8)
1453         long int num = 0x7fffffffffffffff;
1454 #else
1455         long long num = 0x7fffffffffffffffll;
1456 #endif
1457         strcpy(expected_out, "9223372036854775807");
1458         snprintf(buf, mazsize, "%lld", num);
1459         if(strcmp(buf, expected_out) != 0)
1460                 exit(1);
1461         exit(0);
1462 }
1463 #else
1464 main() { exit(0); }
1465 #endif
1466                 ], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ]
1467         )
1468 fi
1469 AC_SUBST(NO_SFTP)
1470
1471 dnl Checks for structure members
1472 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
1473 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
1474 OSSH_CHECK_HEADER_FOR_FIELD(syslen, utmpx.h, HAVE_SYSLEN_IN_UTMPX)
1475 OSSH_CHECK_HEADER_FOR_FIELD(ut_pid, utmp.h, HAVE_PID_IN_UTMP)
1476 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmp.h, HAVE_TYPE_IN_UTMP)
1477 OSSH_CHECK_HEADER_FOR_FIELD(ut_type, utmpx.h, HAVE_TYPE_IN_UTMPX)
1478 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmp.h, HAVE_TV_IN_UTMP)
1479 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmp.h, HAVE_ID_IN_UTMP)
1480 OSSH_CHECK_HEADER_FOR_FIELD(ut_id, utmpx.h, HAVE_ID_IN_UTMPX)
1481 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmp.h, HAVE_ADDR_IN_UTMP)
1482 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr, utmpx.h, HAVE_ADDR_IN_UTMPX)
1483 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmp.h, HAVE_ADDR_V6_IN_UTMP)
1484 OSSH_CHECK_HEADER_FOR_FIELD(ut_addr_v6, utmpx.h, HAVE_ADDR_V6_IN_UTMPX)
1485 OSSH_CHECK_HEADER_FOR_FIELD(ut_exit, utmp.h, HAVE_EXIT_IN_UTMP)
1486 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmp.h, HAVE_TIME_IN_UTMP)
1487 OSSH_CHECK_HEADER_FOR_FIELD(ut_time, utmpx.h, HAVE_TIME_IN_UTMPX)
1488 OSSH_CHECK_HEADER_FOR_FIELD(ut_tv, utmpx.h, HAVE_TV_IN_UTMPX)
1489
1490 AC_CHECK_MEMBERS([struct stat.st_blksize])
1491
1492 AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
1493                 ac_cv_have_ss_family_in_struct_ss, [
1494         AC_TRY_COMPILE(
1495                 [
1496 #include <sys/types.h>
1497 #include <sys/socket.h>
1498                 ],
1499                 [ struct sockaddr_storage s; s.ss_family = 1; ],
1500                 [ ac_cv_have_ss_family_in_struct_ss="yes" ],
1501                 [ ac_cv_have_ss_family_in_struct_ss="no" ],
1502         )
1503 ])
1504 if test "x$ac_cv_have_ss_family_in_struct_ss" = "xyes" ; then
1505         AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
1506 fi
1507
1508 AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
1509                 ac_cv_have___ss_family_in_struct_ss, [
1510         AC_TRY_COMPILE(
1511                 [
1512 #include <sys/types.h>
1513 #include <sys/socket.h>
1514                 ],
1515                 [ struct sockaddr_storage s; s.__ss_family = 1; ],
1516                 [ ac_cv_have___ss_family_in_struct_ss="yes" ],
1517                 [ ac_cv_have___ss_family_in_struct_ss="no" ]
1518         )
1519 ])
1520 if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then
1521         AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
1522 fi
1523
1524 AC_CACHE_CHECK([for pw_class field in struct passwd],
1525                 ac_cv_have_pw_class_in_struct_passwd, [
1526         AC_TRY_COMPILE(
1527                 [
1528 #include <pwd.h>
1529                 ],
1530                 [ struct passwd p; p.pw_class = 0; ],
1531                 [ ac_cv_have_pw_class_in_struct_passwd="yes" ],
1532                 [ ac_cv_have_pw_class_in_struct_passwd="no" ]
1533         )
1534 ])
1535 if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then
1536         AC_DEFINE(HAVE_PW_CLASS_IN_PASSWD)
1537 fi
1538
1539 AC_CACHE_CHECK([for pw_expire field in struct passwd],
1540                 ac_cv_have_pw_expire_in_struct_passwd, [
1541         AC_TRY_COMPILE(
1542                 [
1543 #include <pwd.h>
1544                 ],
1545                 [ struct passwd p; p.pw_expire = 0; ],
1546                 [ ac_cv_have_pw_expire_in_struct_passwd="yes" ],
1547                 [ ac_cv_have_pw_expire_in_struct_passwd="no" ]
1548         )
1549 ])
1550 if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then
1551         AC_DEFINE(HAVE_PW_EXPIRE_IN_PASSWD)
1552 fi
1553
1554 AC_CACHE_CHECK([for pw_change field in struct passwd],
1555                 ac_cv_have_pw_change_in_struct_passwd, [
1556         AC_TRY_COMPILE(
1557                 [
1558 #include <pwd.h>
1559                 ],
1560                 [ struct passwd p; p.pw_change = 0; ],
1561                 [ ac_cv_have_pw_change_in_struct_passwd="yes" ],
1562                 [ ac_cv_have_pw_change_in_struct_passwd="no" ]
1563         )
1564 ])
1565 if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then
1566         AC_DEFINE(HAVE_PW_CHANGE_IN_PASSWD)
1567 fi
1568
1569 AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
1570                 ac_cv_have_accrights_in_msghdr, [
1571         AC_TRY_COMPILE(
1572                 [
1573 #include <sys/socket.h>
1574 #include <sys/uio.h>
1575                 ],
1576                 [ struct msghdr m; m.msg_accrights = 0; ],
1577                 [ ac_cv_have_accrights_in_msghdr="yes" ],
1578                 [ ac_cv_have_accrights_in_msghdr="no" ]
1579         )
1580 ])
1581 if test "x$ac_cv_have_accrights_in_msghdr" = "xyes" ; then
1582         AC_DEFINE(HAVE_ACCRIGHTS_IN_MSGHDR)
1583 fi
1584
1585 AC_CACHE_CHECK([for msg_control field in struct msghdr],
1586                 ac_cv_have_control_in_msghdr, [
1587         AC_TRY_COMPILE(
1588                 [
1589 #include <sys/socket.h>
1590 #include <sys/uio.h>
1591                 ],
1592                 [ struct msghdr m; m.msg_control = 0; ],
1593                 [ ac_cv_have_control_in_msghdr="yes" ],
1594                 [ ac_cv_have_control_in_msghdr="no" ]
1595         )
1596 ])
1597 if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
1598         AC_DEFINE(HAVE_CONTROL_IN_MSGHDR)
1599 fi
1600
1601 AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
1602         AC_TRY_LINK([],
1603                 [ extern char *__progname; printf("%s", __progname); ],
1604                 [ ac_cv_libc_defines___progname="yes" ],
1605                 [ ac_cv_libc_defines___progname="no" ]
1606         )
1607 ])
1608 if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
1609         AC_DEFINE(HAVE___PROGNAME)
1610 fi
1611
1612 AC_CACHE_CHECK([whether $CC implements __FUNCTION__], ac_cv_cc_implements___FUNCTION__, [
1613         AC_TRY_LINK([
1614 #include <stdio.h>
1615 ],
1616                 [ printf("%s", __FUNCTION__); ],
1617                 [ ac_cv_cc_implements___FUNCTION__="yes" ],
1618                 [ ac_cv_cc_implements___FUNCTION__="no" ]
1619         )
1620 ])
1621 if test "x$ac_cv_cc_implements___FUNCTION__" = "xyes" ; then
1622         AC_DEFINE(HAVE___FUNCTION__)
1623 fi
1624
1625 AC_CACHE_CHECK([whether $CC implements __func__], ac_cv_cc_implements___func__, [
1626         AC_TRY_LINK([
1627 #include <stdio.h>
1628 ],
1629                 [ printf("%s", __func__); ],
1630                 [ ac_cv_cc_implements___func__="yes" ],
1631                 [ ac_cv_cc_implements___func__="no" ]
1632         )
1633 ])
1634 if test "x$ac_cv_cc_implements___func__" = "xyes" ; then
1635         AC_DEFINE(HAVE___func__)
1636 fi
1637
1638 AC_CACHE_CHECK([whether getopt has optreset support],
1639                 ac_cv_have_getopt_optreset, [
1640         AC_TRY_LINK(
1641                 [
1642 #include <getopt.h>
1643                 ],
1644                 [ extern int optreset; optreset = 0; ],
1645                 [ ac_cv_have_getopt_optreset="yes" ],
1646                 [ ac_cv_have_getopt_optreset="no" ]
1647         )
1648 ])
1649 if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
1650         AC_DEFINE(HAVE_GETOPT_OPTRESET)
1651 fi
1652
1653 AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
1654         AC_TRY_LINK([],
1655                 [ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
1656                 [ ac_cv_libc_defines_sys_errlist="yes" ],
1657                 [ ac_cv_libc_defines_sys_errlist="no" ]
1658         )
1659 ])
1660 if test "x$ac_cv_libc_defines_sys_errlist" = "xyes" ; then
1661         AC_DEFINE(HAVE_SYS_ERRLIST)
1662 fi
1663
1664
1665 AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
1666         AC_TRY_LINK([],
1667                 [ extern int sys_nerr; printf("%i", sys_nerr);],
1668                 [ ac_cv_libc_defines_sys_nerr="yes" ],
1669                 [ ac_cv_libc_defines_sys_nerr="no" ]
1670         )
1671 ])
1672 if test "x$ac_cv_libc_defines_sys_nerr" = "xyes" ; then
1673         AC_DEFINE(HAVE_SYS_NERR)
1674 fi
1675
1676 SCARD_MSG="no"
1677
1678 # Check whether user wants sectok support
1679 AC_ARG_WITH(sectok,
1680         [  --with-sectok           Enable smartcard support using libsectok],
1681         [
1682                 if test "x$withval" != "xno" ; then
1683                         if test "x$withval" != "xyes" ; then
1684                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1685                                 LDFLAGS="$LDFLAGS -L${withval}"
1686                                 if test ! -z "$need_dash_r" ; then
1687                                         LDFLAGS="$LDFLAGS -R${withval}"
1688                                 fi
1689                                 if test ! -z "$blibpath" ; then
1690                                         blibpath="$blibpath:${withval}"
1691                                 fi
1692                         fi
1693                         AC_CHECK_HEADERS(sectok.h)
1694                         if test "$ac_cv_header_sectok_h" != yes; then
1695                                 AC_MSG_ERROR(Can't find sectok.h)
1696                         fi
1697                         AC_CHECK_LIB(sectok, sectok_open)
1698                         if test "$ac_cv_lib_sectok_sectok_open" != yes; then
1699                                 AC_MSG_ERROR(Can't find libsectok)
1700                         fi
1701                         AC_DEFINE(SMARTCARD)
1702                         AC_DEFINE(USE_SECTOK)
1703                         SCARD_MSG="yes, using sectok"
1704                 fi
1705         ]
1706 )
1707
1708 # Check whether user wants OpenSC support
1709 AC_ARG_WITH(opensc,
1710         [  --with-opensc           Enable smartcard support using OpenSC],
1711         [
1712                 if test "x$withval" != "xno" ; then
1713                         if test "x$withval" != "xyes" ; then
1714                                 CPPFLAGS="$CPPFLAGS -I${withval}"
1715                                 LDFLAGS="$LDFLAGS -L${withval}"
1716                                 if test ! -z "$need_dash_r" ; then
1717                                         LDFLAGS="$LDFLAGS -R${withval}"
1718                                 fi
1719                                 if test ! -z "$blibpath" ; then
1720                                         blibpath="$blibpath:${withval}"
1721                                 fi
1722                         fi
1723                         AC_CHECK_HEADERS(opensc-pkcs15.h)
1724                         if test "$ac_cv_header_opensc_pkcs15_h" != yes; then
1725                                 AC_MSG_ERROR(Can't find opensc-pkcs15.h)
1726                         fi
1727                         AC_CHECK_LIB(opensc, sc_pkcs15_bind)
1728                         if test "$ac_cv_lib_opensc_sc_pkcs15_bind" != yes; then
1729                                 AC_MSG_ERROR(Can't find libopensc)
1730                         fi
1731                         AC_DEFINE(SMARTCARD)
1732                         AC_DEFINE(USE_OPENSC)
1733                         SCARD_MSG="yes, using OpenSC"
1734                 fi
1735         ]
1736 )
1737
1738 # Check whether user wants Kerberos support
1739 KRB4_MSG="no"
1740 AC_ARG_WITH(kerberos4,
1741         [  --with-kerberos4=PATH   Enable Kerberos 4 support],
1742         [
1743                 if test "x$withval" != "xno" ; then
1744                         if test "x$withval" != "xyes" ; then
1745                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1746                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1747                                 if test ! -z "$need_dash_r" ; then
1748                                         LDFLAGS="$LDFLAGS -R${withval}/lib"
1749                                 fi
1750                                 if test ! -z "$blibpath" ; then
1751                                         blibpath="$blibpath:${withval}/lib"
1752                                 fi
1753                         else
1754                                 if test -d /usr/include/kerberosIV ; then
1755                                         CPPFLAGS="$CPPFLAGS -I/usr/include/kerberosIV"
1756                                 fi
1757                         fi
1758
1759                         AC_CHECK_HEADERS(krb.h)
1760                         if test "$ac_cv_header_krb_h" != yes; then
1761                                 AC_MSG_WARN([Cannot find krb.h, build may fail])
1762                         fi
1763                         AC_CHECK_LIB(krb, main)
1764                         if test "$ac_cv_lib_krb_main" != yes; then
1765                                 AC_CHECK_LIB(krb4, main)
1766                                 if test "$ac_cv_lib_krb4_main" != yes; then
1767                                         AC_MSG_WARN([Cannot find libkrb nor libkrb4, build may fail])
1768                                 else
1769                                         KLIBS="-lkrb4"
1770                                 fi
1771                         else
1772                                 KLIBS="-lkrb"
1773                         fi
1774                         AC_CHECK_LIB(des, des_cbc_encrypt)
1775                         if test "$ac_cv_lib_des_des_cbc_encrypt" != yes; then
1776                                 AC_CHECK_LIB(des425, des_cbc_encrypt)
1777                                 if test "$ac_cv_lib_des425_des_cbc_encrypt" != yes; then
1778                                         AC_MSG_WARN([Cannot find libdes nor libdes425, build may fail])
1779                                 else
1780                                         KLIBS="-ldes425"
1781                                 fi
1782                         else
1783                                 KLIBS="-ldes"
1784                         fi
1785                         AC_CHECK_LIB(resolv, dn_expand, , )
1786                         KRB4=yes
1787                         KRB4_MSG="yes"
1788                         AC_DEFINE(KRB4)
1789                 fi
1790         ]
1791 )
1792
1793 # Check whether user wants AFS support
1794 AFS_MSG="no"
1795 AC_ARG_WITH(afs,
1796         [  --with-afs=PATH         Enable AFS support],
1797         [
1798                 if test "x$withval" != "xno" ; then
1799
1800                         if test "x$withval" != "xyes" ; then
1801                                 CPPFLAGS="$CPPFLAGS -I${withval}/include"
1802                                 LDFLAGS="$LDFLAGS -L${withval}/lib"
1803                         fi
1804
1805                         if test -z "$KRB4" ; then
1806                                 AC_MSG_WARN([AFS requires Kerberos IV support, build may fail])
1807                         fi
1808
1809                         LIBS="-lkafs $LIBS"
1810                         if test ! -z "$AFS_LIBS" ; then
1811                                 LIBS="$LIBS $AFS_LIBS"
1812                         fi
1813                         AC_DEFINE(AFS)
1814                         AFS_MSG="yes"
1815                 fi
1816         ]
1817 )
1818 LIBS="$LIBS $KLIBS"
1819
1820 # Looking for programs, paths and files
1821 AC_ARG_WITH(rsh,
1822         [  --with-rsh=PATH         Specify path to remote shell program ],
1823         [
1824                 if test "x$withval" != "$no" ; then
1825                         rsh_path=$withval
1826                 fi
1827         ],
1828         [
1829                 AC_PATH_PROG(rsh_path, rsh)
1830         ]
1831 )
1832
1833 AC_ARG_WITH(xauth,
1834         [  --with-xauth=PATH       Specify path to xauth program ],
1835         [
1836                 if test "x$withval" != "xno" ; then
1837                         xauth_path=$withval
1838                 fi
1839         ],
1840         [
1841                 AC_PATH_PROG(xauth_path, xauth,,$PATH:/usr/X/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/openwin/bin)
1842                 if (test ! -z "$xauth_path" && test -x "/usr/openwin/bin/xauth") ; then
1843                         xauth_path="/usr/openwin/bin/xauth"
1844                 fi
1845         ]
1846 )
1847
1848 if test -z "$xauth_path" ; then
1849         XAUTH_PATH="undefined"
1850         AC_SUBST(XAUTH_PATH)
1851 else
1852         AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
1853         XAUTH_PATH=$xauth_path
1854         AC_SUBST(XAUTH_PATH)
1855 fi
1856 if test ! -z "$rsh_path" ; then
1857         AC_DEFINE_UNQUOTED(RSH_PATH, "$rsh_path")
1858 fi
1859
1860 # Check for mail directory (last resort if we cannot get it from headers)
1861 if test ! -z "$MAIL" ; then
1862         maildir=`dirname $MAIL`
1863         AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
1864 fi
1865
1866 if test -z "$no_dev_ptmx" ; then
1867         AC_CHECK_FILE("/dev/ptmx",
1868                 [
1869                         AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
1870                         have_dev_ptmx=1
1871                 ]
1872         )
1873 fi
1874 AC_CHECK_FILE("/dev/ptc",
1875         [
1876                 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
1877                 have_dev_ptc=1
1878         ]
1879 )
1880
1881 # Options from here on. Some of these are preset by platform above
1882 AC_ARG_WITH(mantype,
1883         [  --with-mantype=man|cat|doc  Set man page type],
1884         [
1885                 case "$withval" in
1886                 man|cat|doc)
1887                         MANTYPE=$withval
1888                         ;;
1889                 *)
1890                         AC_MSG_ERROR(invalid man type: $withval)
1891                         ;;
1892                 esac
1893         ]
1894 )
1895 if test -z "$MANTYPE"; then
1896         AC_PATH_PROGS(NROFF, nroff awf, /bin/false, /usr/bin:/usr/ucb)
1897         if ${NROFF} -mdoc ${srcdir}/ssh.1 >/dev/null 2>&1; then
1898                 MANTYPE=doc
1899         elif ${NROFF} -man ${srcdir}/ssh.1 >/dev/null 2>&1; then
1900                 MANTYPE=man
1901         else
1902                 MANTYPE=cat
1903         fi
1904 fi
1905 AC_SUBST(MANTYPE)
1906 if test "$MANTYPE" = "doc"; then
1907         mansubdir=man;
1908 else
1909         mansubdir=$MANTYPE;
1910 fi
1911 AC_SUBST(mansubdir)
1912
1913 # Check whether to enable MD5 passwords
1914 MD5_MSG="no"
1915 AC_ARG_WITH(md5-passwords,
1916         [  --with-md5-passwords    Enable use of MD5 passwords],
1917         [
1918                 if test "x$withval" != "xno" ; then
1919                         AC_DEFINE(HAVE_MD5_PASSWORDS)
1920                         MD5_MSG="yes"
1921                 fi
1922         ]
1923 )
1924
1925 # Whether to disable shadow password support
1926 AC_ARG_WITH(shadow,
1927         [  --without-shadow        Disable shadow password support],
1928         [
1929                 if test "x$withval" = "xno" ; then
1930                         AC_DEFINE(DISABLE_SHADOW)
1931                         disable_shadow=yes
1932                 fi
1933         ]
1934 )
1935
1936 if test -z "$disable_shadow" ; then
1937         AC_MSG_CHECKING([if the systems has expire shadow information])
1938         AC_TRY_COMPILE(
1939         [
1940 #include <sys/types.h>
1941 #include <shadow.h>
1942         struct spwd sp;
1943         ],[ sp.sp_expire = sp.sp_lstchg = sp.sp_inact = 0; ],
1944         [ sp_expire_available=yes ], []
1945         )
1946
1947         if test "x$sp_expire_available" = "xyes" ; then
1948                 AC_MSG_RESULT(yes)
1949                 AC_DEFINE(HAS_SHADOW_EXPIRE)
1950         else
1951                 AC_MSG_RESULT(no)
1952         fi
1953 fi
1954
1955 # Use ip address instead of hostname in $DISPLAY
1956 if test ! -z "$IPADDR_IN_DISPLAY" ; then
1957         DISPLAY_HACK_MSG="yes"
1958         AC_DEFINE(IPADDR_IN_DISPLAY)
1959 else
1960         DISPLAY_HACK_MSG="no"
1961         AC_ARG_WITH(ipaddr-display,
1962                 [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
1963                 [
1964                         if test "x$withval" != "xno" ; then
1965                                 AC_DEFINE(IPADDR_IN_DISPLAY)
1966                                 DISPLAY_HACK_MSG="yes"
1967                         fi
1968                 ]
1969         )
1970 fi
1971
1972 # Whether to mess with the default path
1973 SERVER_PATH_MSG="(default)"
1974 AC_ARG_WITH(default-path,
1975         [  --with-default-path=PATH Specify default \$PATH environment for server],
1976         [
1977                 if test "x$withval" != "xno" ; then
1978                         user_path="$withval"
1979                         SERVER_PATH_MSG="$withval"
1980                 fi
1981         ],
1982         [
1983         AC_TRY_RUN(
1984                 [
1985 /* find out what STDPATH is */
1986 #include <stdio.h>
1987 #ifdef HAVE_PATHS_H
1988 # include <paths.h>
1989 #endif
1990 #ifndef _PATH_STDPATH
1991 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
1992 #endif
1993 #include <sys/types.h>
1994 #include <sys/stat.h>
1995 #include <fcntl.h>
1996 #define DATA "conftest.stdpath"
1997
1998 main()
1999 {
2000         FILE *fd;
2001         int rc;
2002
2003         fd = fopen(DATA,"w");
2004         if(fd == NULL)
2005                 exit(1);
2006
2007         if ((rc = fprintf(fd,"%s", _PATH_STDPATH)) < 0)
2008                 exit(1);
2009
2010         exit(0);
2011 }
2012                 ], [ user_path=`cat conftest.stdpath` ],
2013                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ],
2014                 [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ]
2015         )
2016 # make sure $bindir is in USER_PATH so scp will work
2017                 t_bindir=`eval echo ${bindir}`
2018                 case $t_bindir in
2019                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;;
2020                 esac
2021                 case $t_bindir in
2022                         NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;;
2023                 esac
2024                 echo $user_path | grep ":$t_bindir"  > /dev/null 2>&1
2025                 if test $? -ne 0  ; then
2026                         echo $user_path | grep "^$t_bindir"  > /dev/null 2>&1
2027                         if test $? -ne 0  ; then
2028                                 user_path=$user_path:$t_bindir
2029                                 AC_MSG_RESULT(Adding $t_bindir to USER_PATH so scp will work)
2030                         fi
2031                 fi
2032         ]
2033 )
2034 AC_DEFINE_UNQUOTED(USER_PATH, "$user_path")
2035 AC_SUBST(user_path)
2036
2037 # Whether to force IPv4 by default (needed on broken glibc Linux)
2038 IPV4_HACK_MSG="no"
2039 AC_ARG_WITH(ipv4-default,
2040         [  --with-ipv4-default     Use IPv4 by connections unless '-6' specified],
2041         [
2042                 if test "x$withval" != "xno" ; then
2043                         AC_DEFINE(IPV4_DEFAULT)
2044                         IPV4_HACK_MSG="yes"
2045                 fi
2046         ]
2047 )
2048
2049 AC_MSG_CHECKING([if we need to convert IPv4 in IPv6-mapped addresses])
2050 IPV4_IN6_HACK_MSG="no"
2051 AC_ARG_WITH(4in6,
2052         [  --with-4in6             Check for and convert IPv4 in IPv6 mapped addresses],
2053         [
2054                 if test "x$withval" != "xno" ; then
2055                         AC_MSG_RESULT(yes)
2056                         AC_DEFINE(IPV4_IN_IPV6)
2057                         IPV4_IN6_HACK_MSG="yes"
2058                 else
2059                         AC_MSG_RESULT(no)
2060                 fi
2061         ],[
2062                 if test "x$inet6_default_4in6" = "xyes"; then
2063                         AC_MSG_RESULT([yes (default)])
2064                         AC_DEFINE(IPV4_IN_IPV6)
2065                         IPV4_IN6_HACK_MSG="yes"
2066                 else
2067                         AC_MSG_RESULT([no (default)])
2068                 fi
2069         ]
2070 )
2071
2072 # Whether to enable BSD auth support
2073 BSD_AUTH_MSG=no
2074 AC_ARG_WITH(bsd-auth,
2075         [  --with-bsd-auth         Enable BSD auth support],
2076         [
2077                 if test "x$withval" != "xno" ; then
2078                         AC_DEFINE(BSD_AUTH)
2079                         BSD_AUTH_MSG=yes
2080                 fi
2081         ]
2082 )
2083
2084 AC_MSG_CHECKING(whether to install ssh as suid root)
2085 AC_ARG_ENABLE(suid-ssh,
2086 [  --enable-suid-ssh       Install ssh as suid root (default)
2087   --disable-suid-ssh      Install ssh without suid bit],
2088 [ case "$enableval" in
2089   no)
2090        AC_MSG_RESULT(no)
2091        SSHMODE=0711
2092        ;;
2093   *)   AC_MSG_RESULT(yes)
2094        SSHMODE=4711
2095        ;;
2096   esac ],
2097   AC_MSG_RESULT(yes)
2098   SSHMODE=4711
2099 )
2100 AC_SUBST(SSHMODE)
2101
2102
2103 # Where to place sshd.pid
2104 piddir=/var/run
2105 # make sure the directory exists
2106 if test ! -d $piddir ; then
2107         piddir=`eval echo ${sysconfdir}`
2108         case $piddir in
2109                 NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
2110         esac
2111 fi
2112
2113 AC_ARG_WITH(pid-dir,
2114         [  --with-pid-dir=PATH     Specify location of ssh.pid file],
2115         [
2116                 if test "x$withval" != "xno" ; then
2117                         piddir=$withval
2118                         if test ! -d $piddir ; then
2119                         AC_MSG_WARN([** no $piddir directory on this system **])
2120                         fi
2121                 fi
2122         ]
2123 )
2124
2125 AC_DEFINE_UNQUOTED(_PATH_SSH_PIDDIR, "$piddir")
2126 AC_SUBST(piddir)
2127
2128 dnl allow user to disable some login recording features
2129 AC_ARG_ENABLE(lastlog,
2130         [  --disable-lastlog       disable use of lastlog even if detected [no]],
2131         [ AC_DEFINE(DISABLE_LASTLOG) ]
2132 )
2133 AC_ARG_ENABLE(utmp,
2134         [  --disable-utmp          disable use of utmp even if detected [no]],
2135         [ AC_DEFINE(DISABLE_UTMP) ]
2136 )
2137 AC_ARG_ENABLE(utmpx,
2138         [  --disable-utmpx         disable use of utmpx even if detected [no]],
2139         [ AC_DEFINE(DISABLE_UTMPX) ]
2140 )
2141 AC_ARG_ENABLE(wtmp,
2142         [  --disable-wtmp          disable use of wtmp even if detected [no]],
2143         [ AC_DEFINE(DISABLE_WTMP) ]
2144 )
2145 AC_ARG_ENABLE(wtmpx,
2146         [  --disable-wtmpx         disable use of wtmpx even if detected [no]],
2147         [ AC_DEFINE(DISABLE_WTMPX) ]
2148 )
2149 AC_ARG_ENABLE(libutil,
2150         [  --disable-libutil       disable use of libutil (login() etc.) [no]],
2151         [ AC_DEFINE(DISABLE_LOGIN) ]
2152 )
2153 AC_ARG_ENABLE(pututline,
2154         [  --disable-pututline     disable use of pututline() etc. ([uw]tmp) [no]],
2155         [ AC_DEFINE(DISABLE_PUTUTLINE) ]
2156 )
2157 AC_ARG_ENABLE(pututxline,
2158         [  --disable-pututxline    disable use of pututxline() etc. ([uw]tmpx) [no]],
2159         [ AC_DEFINE(DISABLE_PUTUTXLINE) ]
2160 )
2161 AC_ARG_WITH(lastlog,
2162   [  --with-lastlog=FILE|DIR specify lastlog location [common locations]],
2163         [
2164                 if test "x$withval" = "xno" ; then
2165                         AC_DEFINE(DISABLE_LASTLOG)
2166                 else
2167                         conf_lastlog_location=$withval
2168                 fi
2169         ]
2170 )
2171
2172 dnl lastlog, [uw]tmpx? detection
2173 dnl  NOTE: set the paths in the platform section to avoid the
2174 dnl   need for command-line parameters
2175 dnl lastlog and [uw]tmp are subject to a file search if all else fails
2176
2177 dnl lastlog detection
2178 dnl  NOTE: the code itself will detect if lastlog is a directory
2179 AC_MSG_CHECKING([if your system defines LASTLOG_FILE])
2180 AC_TRY_COMPILE([
2181 #include <sys/types.h>
2182 #include <utmp.h>
2183 #ifdef HAVE_LASTLOG_H
2184 #  include <lastlog.h>
2185 #endif
2186 #ifdef HAVE_PATHS_H
2187 #  include <paths.h>
2188 #endif
2189 #ifdef HAVE_LOGIN_H
2190 # include <login.h>
2191 #endif
2192         ],
2193         [ char *lastlog = LASTLOG_FILE; ],
2194         [ AC_MSG_RESULT(yes) ],
2195         [
2196                 AC_MSG_RESULT(no)
2197                 AC_MSG_CHECKING([if your system defines _PATH_LASTLOG])
2198                 AC_TRY_COMPILE([
2199 #include <sys/types.h>
2200 #include <utmp.h>
2201 #ifdef HAVE_LASTLOG_H
2202 #  include <lastlog.h>
2203 #endif
2204 #ifdef HAVE_PATHS_H
2205 #  include <paths.h>
2206 #endif
2207                 ],
2208                 [ char *lastlog = _PATH_LASTLOG; ],
2209                 [ AC_MSG_RESULT(yes) ],
2210                 [
2211                         AC_MSG_RESULT(no)
2212                         system_lastlog_path=no
2213                 ])
2214         ]
2215 )
2216
2217 if test -z "$conf_lastlog_location"; then
2218         if test x"$system_lastlog_path" = x"no" ; then
2219                 for f in /var/log/lastlog /usr/adm/lastlog /var/adm/lastlog /etc/security/lastlog ; do
2220                                 if (test -d "$f" || test -f "$f") ; then
2221                                         conf_lastlog_location=$f
2222                                 fi
2223                 done
2224                 if test -z "$conf_lastlog_location"; then
2225                         AC_MSG_WARN([** Cannot find lastlog **])
2226                         dnl Don't define DISABLE_LASTLOG - that means we don't try wtmp/wtmpx
2227                 fi
2228         fi
2229 fi
2230
2231 if test -n "$conf_lastlog_location"; then
2232         AC_DEFINE_UNQUOTED(CONF_LASTLOG_FILE, "$conf_lastlog_location")
2233 fi
2234
2235 dnl utmp detection
2236 AC_MSG_CHECKING([if your system defines UTMP_FILE])
2237 AC_TRY_COMPILE([
2238 #include <sys/types.h>
2239 #include <utmp.h>
2240 #ifdef HAVE_PATHS_H
2241 #  include <paths.h>
2242 #endif
2243         ],
2244         [ char *utmp = UTMP_FILE; ],
2245         [ AC_MSG_RESULT(yes) ],
2246         [ AC_MSG_RESULT(no)
2247           system_utmp_path=no ]
2248 )
2249 if test -z "$conf_utmp_location"; then
2250         if test x"$system_utmp_path" = x"no" ; then
2251                 for f in /etc/utmp /usr/adm/utmp /var/run/utmp; do
2252                         if test -f $f ; then
2253                                 conf_utmp_location=$f
2254                         fi
2255                 done
2256                 if test -z "$conf_utmp_location"; then
2257                         AC_DEFINE(DISABLE_UTMP)
2258                 fi
2259         fi
2260 fi
2261 if test -n "$conf_utmp_location"; then
2262         AC_DEFINE_UNQUOTED(CONF_UTMP_FILE, "$conf_utmp_location")
2263 fi
2264
2265 dnl wtmp detection
2266 AC_MSG_CHECKING([if your system defines WTMP_FILE])
2267 AC_TRY_COMPILE([
2268 #include <sys/types.h>
2269 #include <utmp.h>
2270 #ifdef HAVE_PATHS_H
2271 #  include <paths.h>
2272 #endif
2273         ],
2274         [ char *wtmp = WTMP_FILE; ],
2275         [ AC_MSG_RESULT(yes) ],
2276         [ AC_MSG_RESULT(no)
2277           system_wtmp_path=no ]
2278 )
2279 if test -z "$conf_wtmp_location"; then
2280         if test x"$system_wtmp_path" = x"no" ; then
2281                 for f in /usr/adm/wtmp /var/log/wtmp; do
2282                         if test -f $f ; then
2283                                 conf_wtmp_location=$f
2284                         fi
2285                 done
2286                 if test -z "$conf_wtmp_location"; then
2287                         AC_DEFINE(DISABLE_WTMP)
2288                 fi
2289         fi
2290 fi
2291 if test -n "$conf_wtmp_location"; then
2292         AC_DEFINE_UNQUOTED(CONF_WTMP_FILE, "$conf_wtmp_location")
2293 fi
2294
2295
2296 dnl utmpx detection - I don't know any system so perverse as to require
2297 dnl  utmpx, but not define UTMPX_FILE (ditto wtmpx.) No doubt it's out
2298 dnl  there, though.
2299 AC_MSG_CHECKING([if your system defines UTMPX_FILE])
2300 AC_TRY_COMPILE([
2301 #include <sys/types.h>
2302 #include <utmp.h>
2303 #ifdef HAVE_UTMPX_H
2304 #include <utmpx.h>
2305 #endif
2306 #ifdef HAVE_PATHS_H
2307 #  include <paths.h>
2308 #endif
2309         ],
2310         [ char *utmpx = UTMPX_FILE; ],
2311         [ AC_MSG_RESULT(yes) ],
2312         [ AC_MSG_RESULT(no)
2313           system_utmpx_path=no ]
2314 )
2315 if test -z "$conf_utmpx_location"; then
2316         if test x"$system_utmpx_path" = x"no" ; then
2317                 AC_DEFINE(DISABLE_UTMPX)
2318         fi
2319 else
2320         AC_DEFINE_UNQUOTED(CONF_UTMPX_FILE, "$conf_utmpx_location")
2321 fi
2322
2323 dnl wtmpx detection
2324 AC_MSG_CHECKING([if your system defines WTMPX_FILE])
2325 AC_TRY_COMPILE([
2326 #include <sys/types.h>
2327 #include <utmp.h>
2328 #ifdef HAVE_UTMPX_H
2329 #include <utmpx.h>
2330 #endif
2331 #ifdef HAVE_PATHS_H
2332 #  include <paths.h>
2333 #endif
2334         ],
2335         [ char *wtmpx = WTMPX_FILE; ],
2336         [ AC_MSG_RESULT(yes) ],
2337         [ AC_MSG_RESULT(no)
2338           system_wtmpx_path=no ]
2339 )
2340 if test -z "$conf_wtmpx_location"; then
2341         if test x"$system_wtmpx_path" = x"no" ; then
2342                 AC_DEFINE(DISABLE_WTMPX)
2343         fi
2344 else
2345         AC_DEFINE_UNQUOTED(CONF_WTMPX_FILE, "$conf_wtmpx_location")
2346 fi
2347
2348
2349 if test ! -z "$blibpath" ; then
2350         LDFLAGS="$LDFLAGS -blibpath:$blibpath"
2351         AC_MSG_WARN([Please check and edit -blibpath in LDFLAGS in Makefile])
2352 fi
2353
2354 dnl remove pam and dl because they are in $LIBPAM
2355 if test "$PAM_MSG" = yes ; then
2356         LIBS=`echo $LIBS | sed 's/-lpam //'`
2357 fi
2358 if test "$ac_cv_lib_pam_pam_set_item" = yes ; then
2359         LIBS=`echo $LIBS | sed 's/-ldl //'`
2360 fi
2361
2362 AC_EXEEXT
2363 AC_CONFIG_FILES([Makefile openbsd-compat/Makefile scard/Makefile ssh_prng_cmds])
2364 AC_OUTPUT
2365
2366 # Print summary of options
2367
2368 # Someone please show me a better way :)
2369 A=`eval echo ${prefix}` ; A=`eval echo ${A}`
2370 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
2371 C=`eval echo ${sbindir}` ; C=`eval echo ${C}`
2372 D=`eval echo ${sysconfdir}` ; D=`eval echo ${D}`
2373 E=`eval echo ${libexecdir}/ssh-askpass` ; E=`eval echo ${E}`
2374 F=`eval echo ${mandir}/${mansubdir}X` ; F=`eval echo ${F}`
2375 G=`eval echo ${piddir}` ; G=`eval echo ${G}`
2376 H=`eval echo ${user_path}` ; H=`eval echo ${H}`
2377
2378 echo ""
2379 echo "OpenSSH has been configured with the following options:"
2380 echo "                 User binaries: $B"
2381 echo "               System binaries: $C"
2382 echo "           Configuration files: $D"
2383 echo "               Askpass program: $E"
2384 echo "                  Manual pages: $F"
2385 echo "                      PID file: $G"
2386 echo "        sshd default user PATH: $H"
2387 echo "                Manpage format: $MANTYPE"
2388 echo "                   PAM support: ${PAM_MSG}"
2389 echo "            KerberosIV support: $KRB4_MSG"
2390 echo "             Smartcard support: $SCARD_MSG"
2391 echo "                   AFS support: $AFS_MSG"
2392 echo "                 S/KEY support: $SKEY_MSG"
2393 echo "          TCP Wrappers support: $TCPW_MSG"
2394 echo "          MD5 password support: $MD5_MSG"
2395 echo "   IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
2396 echo "      Use IPv4 by default hack: $IPV4_HACK_MSG"
2397 echo "       Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
2398 echo "              BSD Auth support: $BSD_AUTH_MSG"
2399 echo "          Random number source: $RAND_MSG"
2400 if test ! -z "$USE_RAND_HELPER" ; then
2401         echo " ssh-rand-helper collects from: $RAND_HELPER_MSG"
2402 fi
2403
2404 echo ""
2405
2406 echo "              Host: ${host}"
2407 echo "          Compiler: ${CC}"
2408 echo "    Compiler flags: ${CFLAGS}"
2409 echo "Preprocessor flags: ${CPPFLAGS}"
2410 echo "      Linker flags: ${LDFLAGS}"
2411 echo "         Libraries: ${LIBWRAP} ${LIBPAM} ${LIBS}"
2412
2413 echo ""
2414
2415 if test "x$PAM_MSG" = "xyes" ; then
2416         echo "PAM is enabled. You may need to install a PAM control file "
2417         echo "for sshd, otherwise password authentication may fail. "
2418         echo "Example PAM control files can be found in the contrib/ "
2419         echo "subdirectory"
2420         echo ""
2421 fi
2422
2423 if test ! -z "$NO_SFTP"; then
2424         echo "sftp-server will be disabled.  Your compiler does not "
2425         echo "support 64bit integers."
2426         echo ""
2427 fi
2428
2429 if test ! -z "$RAND_HELPER_CMDHASH" ; then
2430         echo "WARNING: you are using the builtin random number collection "
2431         echo "service. Please read WARNING.RNG and request that your OS "
2432         echo "vendor includes kernel-based random number collection in "
2433         echo "future versions of your OS."
2434         echo ""
2435 fi
2436