xref: /freebsd/contrib/unbound/configure.ac (revision bce7ee9d412b6410e6d799c4a417617cbb148e09)
1#                                               -*- Autoconf -*-
2# Process this file with autoconf to produce a configure script.
3AC_PREREQ(2.56)
4sinclude(acx_nlnetlabs.m4)
5sinclude(ax_pthread.m4)
6sinclude(acx_python.m4)
7sinclude(ac_pkg_swig.m4)
8sinclude(dnstap/dnstap.m4)
9sinclude(dnscrypt/dnscrypt.m4)
10
11# must be numbers. ac_defun because of later processing
12m4_define([VERSION_MAJOR],[1])
13m4_define([VERSION_MINOR],[12])
14m4_define([VERSION_MICRO],[0])
15AC_INIT(unbound, m4_defn([VERSION_MAJOR]).m4_defn([VERSION_MINOR]).m4_defn([VERSION_MICRO]), unbound-bugs@nlnetlabs.nl or https://github.com/NLnetLabs/unbound/issues, unbound)
16AC_SUBST(UNBOUND_VERSION_MAJOR, [VERSION_MAJOR])
17AC_SUBST(UNBOUND_VERSION_MINOR, [VERSION_MINOR])
18AC_SUBST(UNBOUND_VERSION_MICRO, [VERSION_MICRO])
19
20LIBUNBOUND_CURRENT=9
21LIBUNBOUND_REVISION=10
22LIBUNBOUND_AGE=1
23# 1.0.0 had 0:12:0
24# 1.0.1 had 0:13:0
25# 1.0.2 had 0:14:0
26# 1.1.0 had 0:15:0
27# 1.1.1 had 0:16:0
28# 1.2.0 had 0:17:0
29# 1.2.1 had 0:18:0
30# 1.3.0 had 1:0:0   # ub_cancel and -export-symbols.
31# 1.3.1 had 1:1:0
32# 1.3.2 had 1:2:0
33# 1.3.3 had 1:3:0
34# 1.3.4 had 1:4:0
35# 1.4.0-snapshots had 1:5:0
36# 1.4.0 had 1:5:0 (not 2:0:0)   # ub_result.why_bogus
37# 1.4.1 had 2:1:0
38# 1.4.2 had 2:2:0
39# 1.4.3 had 2:3:0
40# 1.4.4 had 2:4:0
41# 1.4.5 had 2:5:0
42# 1.4.6 had 2:6:0
43# 1.4.7 had 2:7:0
44# 1.4.8 had 2:8:0
45# 1.4.9 had 2:9:0
46# 1.4.10 had 2:10:0
47# 1.4.11 had 2:11:0
48# 1.4.12 had 2:12:0
49# 1.4.13 had 2:13:0
50# and 1.4.13p1 and 1.4.13.p2
51# 1.4.14 had 2:14:0
52# 1.4.15 had 3:0:1 # adds ub_version()
53# 1.4.16 had 3:1:1
54# 1.4.17 had 3:2:1
55# 1.4.18 had 3:3:1
56# 1.4.19 had 3:4:1
57# 1.4.20 had 4:0:2 # adds libunbound.ttl # but shipped 3:5:1
58# 1.4.21 had 4:1:2
59# 1.4.22 had 4:1:2
60# 1.5.0 had 5:3:3 # adds ub_ctx_add_ta_autr
61# 1.5.1 had 5:3:3
62# 1.5.2 had 5:5:3
63# 1.5.3 had 5:6:3
64# 1.5.4 had 5:7:3
65# 1.5.5 had 5:8:3
66# 1.5.6 had 5:9:3
67# 1.5.7 had 5:10:3
68# 1.5.8 had 6:0:4 # adds ub_ctx_set_stub
69# 1.5.9 had 6:1:4
70# 1.5.10 had 6:2:4
71# 1.6.0 had 6:3:4
72# 1.6.1 had 7:0:5 # ub_callback_t typedef renamed to ub_callback_type
73# 1.6.2 had 7:1:5
74# 1.6.3 had 7:2:5
75# 1.6.4 had 7:3:5
76# 1.6.5 had 7:4:5
77# 1.6.6 had 7:5:5
78# 1.6.7 had 7:6:5
79# 1.6.8 had 7:7:5
80# 1.7.0 had 7:8:5
81# 1.7.1 had 7:9:5
82# 1.7.2 had 7:10:5
83# 1.7.3 had 7:11:5
84# 1.8.0 had 8:0:0 # changes the event callback function signature
85# 1.8.1 had 8:1:0
86# 1.8.2 had 8:2:0
87# 1.8.3 had 8:3:0
88# 1.9.0 had 9:0:1 # add ub_ctx_set_tls
89# 1.9.1 had 9:1:1
90# 1.9.2 had 9:2:1
91# 1.9.3 had 9:3:1
92# 1.9.4 had 9:4:1
93# 1.9.5 had 9:5:1
94# 1.9.6 had 9:6:1
95# 1.10.0 had 9:7:1
96# 1.10.1 had 9:8:1
97# 1.11.0 had 9:9:1
98# 1.12.0 had 9:10:1
99
100#   Current  -- the number of the binary API that we're implementing
101#   Revision -- which iteration of the implementation of the binary
102#               API are we supplying?
103#   Age      -- How many previous binary API versions do we also
104#               support?
105#
106# If we release a new version that does not change the binary API,
107# increment Revision.
108#
109# If we release a new version that changes the binary API, but does
110# not break programs compiled against the old binary API, increment
111# Current and Age.  Set Revision to 0, since this is the first
112# implementation of the new API.
113#
114# Otherwise, we're changing the binary API and breaking backward
115# compatibility with old binaries.  Increment Current.  Set Age to 0,
116# since we're backward compatible with no previous APIs.  Set Revision
117# to 0 too.
118AC_SUBST(LIBUNBOUND_CURRENT)
119AC_SUBST(LIBUNBOUND_REVISION)
120AC_SUBST(LIBUNBOUND_AGE)
121
122
123cmdln="`echo $@ | sed -e 's/\\\\/\\\\\\\\/g' | sed -e 's/"/\\\\"/'g`"
124AC_DEFINE_UNQUOTED(CONFCMDLINE, ["$cmdln"], [Command line arguments used with configure])
125
126CFLAGS="$CFLAGS"
127AC_AIX
128if test "$ac_cv_header_minix_config_h" = "yes"; then
129	AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
130fi
131
132dnl
133dnl By default set prefix to /usr/local
134dnl
135case "$prefix" in
136        NONE)
137		prefix="/usr/local"
138        ;;
139esac
140case "$exec_prefix" in
141        NONE)
142		exec_prefix="$prefix"
143        ;;
144esac
145
146# are we on MinGW?
147if uname -s 2>&1 | grep MINGW32 >/dev/null; then on_mingw="yes"
148else
149	if echo $host $target | grep mingw32 >/dev/null; then on_mingw="yes"
150	else on_mingw="no"; fi
151fi
152
153#
154# Determine configuration file
155# the eval is to evaluate shell expansion twice
156UNBOUND_SBIN_DIR=`eval echo "${sbindir}"`
157AC_SUBST(UNBOUND_SBIN_DIR)
158UNBOUND_SYSCONF_DIR=`eval echo "${sysconfdir}"`
159AC_SUBST(UNBOUND_SYSCONF_DIR)
160UNBOUND_LOCALSTATE_DIR=`eval echo "${localstatedir}"`
161AC_SUBST(UNBOUND_LOCALSTATE_DIR)
162if test $on_mingw = "no"; then
163  ub_conf_file=`eval echo "${sysconfdir}/unbound/unbound.conf"`
164else
165  ub_conf_file="C:\\Program Files\\Unbound\\service.conf"
166fi
167AC_ARG_WITH([conf_file],
168        AC_HELP_STRING([--with-conf-file=path],
169	[Pathname to the Unbound configuration file]),
170	[ub_conf_file="$withval"])
171AC_SUBST(ub_conf_file)
172ACX_ESCAPE_BACKSLASH($ub_conf_file, hdr_config)
173AC_DEFINE_UNQUOTED(CONFIGFILE, ["$hdr_config"], [Pathname to the Unbound configuration file])
174ub_conf_dir=`AS_DIRNAME(["$ub_conf_file"])`
175AC_SUBST(ub_conf_dir)
176
177# Determine run, chroot directory and pidfile locations
178AC_ARG_WITH(run-dir,
179    AC_HELP_STRING([--with-run-dir=path],
180    [set default directory to chdir to (by default dir part of cfg file)]),
181    UNBOUND_RUN_DIR="$withval",
182if test $on_mingw = no; then
183    UNBOUND_RUN_DIR=`dirname "$ub_conf_file"`
184else
185    UNBOUND_RUN_DIR=""
186fi
187)
188AC_SUBST(UNBOUND_RUN_DIR)
189ACX_ESCAPE_BACKSLASH($UNBOUND_RUN_DIR, hdr_run)
190AC_DEFINE_UNQUOTED(RUN_DIR, ["$hdr_run"], [Directory to chdir to])
191
192AC_ARG_WITH(chroot-dir,
193    AC_HELP_STRING([--with-chroot-dir=path],
194    [set default directory to chroot to (by default same as run-dir)]),
195    UNBOUND_CHROOT_DIR="$withval",
196if test $on_mingw = no; then
197    UNBOUND_CHROOT_DIR="$UNBOUND_RUN_DIR"
198else
199    UNBOUND_CHROOT_DIR=""
200fi
201)
202AC_SUBST(UNBOUND_CHROOT_DIR)
203ACX_ESCAPE_BACKSLASH($UNBOUND_CHROOT_DIR, hdr_chroot)
204AC_DEFINE_UNQUOTED(CHROOT_DIR, ["$hdr_chroot"], [Directory to chroot to])
205
206AC_ARG_WITH(share-dir,
207    AC_HELP_STRING([--with-share-dir=path],
208    [set default directory with shared data (by default same as share/unbound)]),
209    UNBOUND_SHARE_DIR="$withval",
210    UNBOUND_SHARE_DIR="$UNBOUND_RUN_DIR")
211AC_SUBST(UNBOUND_SHARE_DIR)
212AC_DEFINE_UNQUOTED(SHARE_DIR, ["$UNBOUND_SHARE_DIR"], [Shared data])
213
214AC_ARG_WITH(pidfile,
215    AC_HELP_STRING([--with-pidfile=filename],
216    [set default pathname to unbound pidfile (default run-dir/unbound.pid)]),
217    UNBOUND_PIDFILE="$withval",
218if test $on_mingw = no; then
219    UNBOUND_PIDFILE="$UNBOUND_RUN_DIR/unbound.pid"
220else
221    UNBOUND_PIDFILE=""
222fi
223)
224AC_SUBST(UNBOUND_PIDFILE)
225ACX_ESCAPE_BACKSLASH($UNBOUND_PIDFILE, hdr_pid)
226AC_DEFINE_UNQUOTED(PIDFILE, ["$hdr_pid"], [default pidfile location])
227
228AC_ARG_WITH(rootkey-file,
229    AC_HELP_STRING([--with-rootkey-file=filename],
230    [set default pathname to root key file (default run-dir/root.key). This file is read and written.]),
231    UNBOUND_ROOTKEY_FILE="$withval",
232if test $on_mingw = no; then
233    UNBOUND_ROOTKEY_FILE="$UNBOUND_RUN_DIR/root.key"
234else
235    UNBOUND_ROOTKEY_FILE="C:\\Program Files\\Unbound\\root.key"
236fi
237)
238AC_SUBST(UNBOUND_ROOTKEY_FILE)
239ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTKEY_FILE, hdr_rkey)
240AC_DEFINE_UNQUOTED(ROOT_ANCHOR_FILE, ["$hdr_rkey"], [default rootkey location])
241
242AC_ARG_WITH(rootcert-file,
243    AC_HELP_STRING([--with-rootcert-file=filename],
244    [set default pathname to root update certificate file (default run-dir/icannbundle.pem).  This file need not exist if you are content with the builtin.]),
245    UNBOUND_ROOTCERT_FILE="$withval",
246if test $on_mingw = no; then
247    UNBOUND_ROOTCERT_FILE="$UNBOUND_RUN_DIR/icannbundle.pem"
248else
249    UNBOUND_ROOTCERT_FILE="C:\\Program Files\\Unbound\\icannbundle.pem"
250fi
251)
252AC_SUBST(UNBOUND_ROOTCERT_FILE)
253ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTCERT_FILE, hdr_rpem)
254AC_DEFINE_UNQUOTED(ROOT_CERT_FILE, ["$hdr_rpem"], [default rootcert location])
255
256AC_ARG_WITH(username,
257    AC_HELP_STRING([--with-username=user],
258    [set default user that unbound changes to (default user is unbound)]),
259    UNBOUND_USERNAME="$withval",
260    UNBOUND_USERNAME="unbound")
261AC_SUBST(UNBOUND_USERNAME)
262AC_DEFINE_UNQUOTED(UB_USERNAME, ["$UNBOUND_USERNAME"], [default username])
263
264AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])
265ACX_RSRC_VERSION(wnvs)
266AC_DEFINE_UNQUOTED(RSRC_PACKAGE_VERSION, [$wnvs], [version number for resource files])
267
268# Checks for typedefs, structures, and compiler characteristics.
269AC_C_CONST
270AC_LANG_C
271# allow user to override the -g -O2 flags.
272default_cflags=no
273if test "x$CFLAGS" = "x" ; then
274ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
275ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
276default_cflags=yes
277fi
278AC_PROG_CC
279ACX_DEPFLAG
280ACX_DETERMINE_EXT_FLAGS_UNBOUND
281
282# debug mode flags warnings
283AC_ARG_ENABLE(checking, AC_HELP_STRING([--enable-checking], [Enable warnings, asserts, makefile-dependencies]))
284AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [same as enable-checking]))
285if test "$enable_debug" = "yes"; then debug_enabled="$enable_debug";
286else debug_enabled="$enable_checking"; fi
287AC_SUBST(debug_enabled)
288case "$debug_enabled" in
289        yes)
290		ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="$CFLAGS -W"])
291		ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="$CFLAGS -Wall"])
292		ACX_CHECK_COMPILER_FLAG(Wextra, [CFLAGS="$CFLAGS -Wextra"])
293		ACX_CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
294		AC_DEFINE([UNBOUND_DEBUG], [], [define this to enable debug checks.])
295		;;
296	no|*)
297		# nothing to do.
298		;;
299esac
300if test "$default_cflags" = "yes"; then
301	# only when CFLAGS was "" at the start, if the users wants to
302	# override we shouldn't add default cflags, because they wouldn't
303	# be able to turn off these options and set the CFLAGS wanted.
304	ACX_CHECK_FLTO
305	ACX_CHECK_PIE
306	ACX_CHECK_RELRO_NOW
307fi
308
309AC_C_INLINE
310ACX_CHECK_FORMAT_ATTRIBUTE
311ACX_CHECK_UNUSED_ATTRIBUTE
312
313AC_DEFUN([CHECK_WEAK_ATTRIBUTE],
314[AC_REQUIRE([AC_PROG_CC])
315AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "weak" attribute)
316AC_CACHE_VAL(ac_cv_c_weak_attribute,
317[ac_cv_c_weak_attribute=no
318AC_TRY_COMPILE(
319[ #include <stdio.h>
320__attribute__((weak)) void f(int x) { printf("%d", x); }
321], [
322   f(1);
323],
324[ac_cv_c_weak_attribute="yes"],
325[ac_cv_c_weak_attribute="no"])
326])
327
328AC_MSG_RESULT($ac_cv_c_weak_attribute)
329if test $ac_cv_c_weak_attribute = yes; then
330  AC_DEFINE(HAVE_ATTR_WEAK, 1, [Whether the C compiler accepts the "weak" attribute])
331  AC_DEFINE(ATTR_WEAK, [__attribute__((weak))], [apply the weak attribute to a symbol])
332fi
333])dnl End of CHECK_WEAK_ATTRIBUTE
334
335CHECK_WEAK_ATTRIBUTE
336
337AC_DEFUN([CHECK_NORETURN_ATTRIBUTE],
338[AC_REQUIRE([AC_PROG_CC])
339AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "noreturn" attribute)
340AC_CACHE_VAL(ac_cv_c_noreturn_attribute,
341[ac_cv_c_noreturn_attribute=no
342AC_TRY_COMPILE(
343[ #include <stdio.h>
344__attribute__((noreturn)) void f(int x) { printf("%d", x); }
345], [
346   f(1);
347],
348[ac_cv_c_noreturn_attribute="yes"],
349[ac_cv_c_noreturn_attribute="no"])
350])
351
352AC_MSG_RESULT($ac_cv_c_noreturn_attribute)
353if test $ac_cv_c_noreturn_attribute = yes; then
354  AC_DEFINE(HAVE_ATTR_NORETURN, 1, [Whether the C compiler accepts the "noreturn" attribute])
355  AC_DEFINE(ATTR_NORETURN, [__attribute__((__noreturn__))], [apply the noreturn attribute to a function that exits the program])
356fi
357])dnl End of CHECK_NORETURN_ATTRIBUTE
358
359CHECK_NORETURN_ATTRIBUTE
360
361if test "$srcdir" != "."; then
362	CPPFLAGS="$CPPFLAGS -I$srcdir"
363fi
364
365AC_DEFUN([ACX_YYLEX_DESTROY], [
366	AC_MSG_CHECKING([for yylex_destroy])
367	if echo %% | $LEX -t 2>&1 | grep yylex_destroy >/dev/null 2>&1; then
368		AC_DEFINE(LEX_HAS_YYLEX_DESTROY, 1, [if lex has yylex_destroy])
369		AC_MSG_RESULT(yes)
370	else AC_MSG_RESULT(no);
371		LEX=":"
372	fi
373])
374
375AC_DEFUN([ACX_YYLEX_OPTION], [
376	AC_MSG_CHECKING([for lex %option])
377	if cat <<EOF | $LEX -t 2>&1 | grep yy_delete_buffer >/dev/null 2>&1; then
378%option nounput
379%%
380EOF
381		AC_MSG_RESULT(yes)
382	else AC_MSG_RESULT(no);
383		LEX=":"
384	fi
385])
386
387AC_PROG_LEX
388if test "$LEX" != "" -a "$LEX" != ":"; then
389ACX_YYLEX_DESTROY
390fi
391if test "$LEX" != "" -a "$LEX" != ":"; then
392ACX_YYLEX_OPTION
393fi
394AC_PROG_YACC
395AC_CHECK_PROG(doxygen, doxygen, doxygen)
396AC_CHECK_TOOL(STRIP, strip)
397ACX_LIBTOOL_C_ONLY
398
399PKG_PROG_PKG_CONFIG
400
401# Checks for header files.
402AC_CHECK_HEADERS([stdarg.h stdbool.h netinet/in.h netinet/tcp.h sys/param.h sys/select.h sys/socket.h sys/un.h sys/uio.h sys/resource.h arpa/inet.h syslog.h netdb.h sys/wait.h pwd.h glob.h grp.h login_cap.h winsock2.h ws2tcpip.h endian.h sys/endian.h libkern/OSByteOrder.h sys/ipc.h sys/shm.h ifaddrs.h net/if.h],,, [AC_INCLUDES_DEFAULT])
403
404# Check for Apple header. This uncovers TARGET_OS_IPHONE, TARGET_OS_TV or TARGET_OS_WATCH
405AC_CHECK_HEADERS([TargetConditionals.h])
406
407# check for types.
408# Using own tests for int64* because autoconf builtin only give 32bit.
409AC_CHECK_TYPE(int8_t, signed char)
410AC_CHECK_TYPE(int16_t, short)
411AC_CHECK_TYPE(int32_t, int)
412AC_CHECK_TYPE(int64_t, long long)
413AC_CHECK_TYPE(uint8_t, unsigned char)
414AC_CHECK_TYPE(uint16_t, unsigned short)
415AC_CHECK_TYPE(uint32_t, unsigned int)
416AC_CHECK_TYPE(uint64_t, unsigned long long)
417AC_TYPE_SIZE_T
418AC_CHECK_TYPE(ssize_t, int)
419AC_TYPE_UID_T
420AC_TYPE_PID_T
421AC_TYPE_OFF_T
422ACX_TYPE_U_CHAR
423ACX_TYPE_RLIM_T
424ACX_TYPE_SOCKLEN_T
425ACX_TYPE_IN_ADDR_T
426ACX_TYPE_IN_PORT_T
427ACX_CHECK_MEMCMP_SIGNED
428
429AC_CHECK_SIZEOF(time_t,,[
430AC_INCLUDES_DEFAULT
431#ifdef TIME_WITH_SYS_TIME
432# include <sys/time.h>
433# include <time.h>
434#else
435# ifdef HAVE_SYS_TIME_H
436#  include <sys/time.h>
437# else
438#  include <time.h>
439# endif
440#endif
441])
442AC_CHECK_SIZEOF(size_t)
443
444# add option to disable the evil rpath
445ACX_ARG_RPATH
446AC_SUBST(RUNTIME_PATH)
447
448# check to see if libraries are needed for these functions.
449AC_SEARCH_LIBS([inet_pton], [nsl])
450AC_SEARCH_LIBS([socket], [socket])
451
452# check wether strptime also works
453AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
454[AC_REQUIRE([AC_PROG_CC])
455AC_MSG_CHECKING(whether strptime works)
456if test c${cross_compiling} = cno; then
457AC_RUN_IFELSE([AC_LANG_SOURCE([[
458#define _XOPEN_SOURCE 600
459#include <time.h>
460int main(void) { struct tm tm; char *res;
461res = strptime("2010-07-15T00:00:00+00:00", "%t%Y%t-%t%m%t-%t%d%tT%t%H%t:%t%M%t:%t%S%t", &tm);
462if (!res) return 2;
463res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
464if (!res) return 1; return 0; }
465]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
466else
467eval "ac_cv_c_strptime_works=maybe"
468fi
469AC_MSG_RESULT($ac_cv_c_strptime_works)
470if test $ac_cv_c_strptime_works = no; then
471AC_LIBOBJ(strptime)
472else
473AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
474fi
475])dnl
476
477# check some functions of the OS before linking libs (while still runnable).
478AC_FUNC_CHOWN
479AC_FUNC_FORK
480AC_TYPE_SIGNAL
481AC_FUNC_FSEEKO
482ACX_SYS_LARGEFILE
483ACX_CHECK_NONBLOCKING_BROKEN
484ACX_MKDIR_ONE_ARG
485AC_CHECK_FUNCS([strptime],[AC_CHECK_STRPTIME_WORKS],[AC_LIBOBJ([strptime])])
486
487# check if we can use SO_REUSEPORT
488if echo "$host" | $GREP -i -e linux -e dragonfly >/dev/null; then
489	AC_DEFINE(REUSEPORT_DEFAULT, 1, [if REUSEPORT is enabled by default])
490else
491	AC_DEFINE(REUSEPORT_DEFAULT, 0, [if REUSEPORT is enabled by default])
492fi
493
494# Include systemd.m4 - begin
495sinclude(systemd.m4)
496# Include systemd.m4 - end
497
498# set memory allocation checking if requested
499AC_ARG_ENABLE(alloc-checks, AC_HELP_STRING([--enable-alloc-checks],
500	[ enable to memory allocation statistics, for debug purposes ]),
501	, )
502AC_ARG_ENABLE(alloc-lite, AC_HELP_STRING([--enable-alloc-lite],
503	[ enable for lightweight alloc assertions, for debug purposes ]),
504	, )
505AC_ARG_ENABLE(alloc-nonregional, AC_HELP_STRING([--enable-alloc-nonregional],
506	[ enable nonregional allocs, slow but exposes regional allocations to other memory purifiers, for debug purposes ]),
507	, )
508if test x_$enable_alloc_nonregional = x_yes; then
509	AC_DEFINE(UNBOUND_ALLOC_NONREGIONAL, 1, [use malloc not regions, for debug use])
510fi
511if test x_$enable_alloc_checks = x_yes; then
512	AC_DEFINE(UNBOUND_ALLOC_STATS, 1, [use statistics for allocs and frees, for debug use])
513	SLDNS_ALLOCCHECK_EXTRA_OBJ="alloc.lo log.lo"
514	AC_SUBST(SLDNS_ALLOCCHECK_EXTRA_OBJ)
515	ASYNCLOOK_ALLOCCHECK_EXTRA_OBJ="alloc.lo"
516	AC_SUBST(ASYNCLOOK_ALLOCCHECK_EXTRA_OBJ)
517else
518	if test x_$enable_alloc_lite = x_yes; then
519		AC_DEFINE(UNBOUND_ALLOC_LITE, 1, [use to enable lightweight alloc assertions, for debug use])
520	else
521		ACX_FUNC_MALLOC([unbound])
522	fi
523fi
524
525# check windows threads (we use them, not pthreads, on windows).
526if test "$on_mingw" = "yes"; then
527# check windows threads
528	AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
529	AC_MSG_CHECKING([for CreateThread])
530	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
531#ifdef HAVE_WINDOWS_H
532#include <windows.h>
533#endif
534], [
535	HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
536])],
537	AC_MSG_RESULT(yes)
538	AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
539,
540	AC_MSG_RESULT(no)
541)
542
543else
544# not on mingw, check thread libraries.
545
546# check for thread library.
547# check this first, so that the pthread lib does not get linked in via
548# libssl or libpython, and thus distorts the tests, and we end up using
549# the non-threadsafe C libraries.
550AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads],
551 [use pthreads library, or --without-pthreads to disable threading support.]),
552 [ ],[ withval="yes" ])
553ub_have_pthreads=no
554if test x_$withval != x_no; then
555	AX_PTHREAD([
556		AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
557		if test -n "$PTHREAD_LIBS"; then
558		  LIBS="$PTHREAD_LIBS $LIBS"
559		fi
560		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
561		CC="$PTHREAD_CC"
562		ub_have_pthreads=yes
563		AC_CHECK_TYPES([pthread_spinlock_t, pthread_rwlock_t],,,[#include <pthread.h>])
564
565		if echo "$CFLAGS" | $GREP -e "-pthread" >/dev/null; then
566		AC_MSG_CHECKING([if -pthread unused during linking])
567		# catch clang warning 'argument unused during compilation'
568		AC_LANG_CONFTEST([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
569[[
570int main(void) {return 0;}
571]])])
572		pthread_unused="yes"
573		# first compile
574		echo "$CC $CFLAGS -c conftest.c -o conftest.o" >&AS_MESSAGE_LOG_FD
575		$CC $CFLAGS -c conftest.c -o conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
576		if test $? = 0; then
577			# then link
578			echo "$CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest contest.o" >&AS_MESSAGE_LOG_FD
579			$CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
580			if test $? -ne 0; then
581				AC_MSG_RESULT(yes)
582				CFLAGS=`echo "$CFLAGS" | sed -e 's/-pthread//'`
583				PTHREAD_CFLAGS_ONLY="-pthread"
584				AC_SUBST(PTHREAD_CFLAGS_ONLY)
585			else
586				AC_MSG_RESULT(no)
587			fi
588		else
589			AC_MSG_RESULT(no)
590		fi # endif cc successful
591		rm -f conftest conftest.c conftest.o
592		fi # endif -pthread in CFLAGS
593
594		])
595fi
596
597# check solaris thread library
598AC_ARG_WITH(solaris-threads, AC_HELP_STRING([--with-solaris-threads],
599	[use solaris native thread library.]), [ ],[ withval="no" ])
600ub_have_sol_threads=no
601if test x_$withval != x_no; then
602	if test x_$ub_have_pthreads != x_no; then
603	    AC_WARN([Have pthreads already, ignoring --with-solaris-threads])
604	else
605	AC_SEARCH_LIBS(thr_create, [thread],
606	[
607    		AC_DEFINE(HAVE_SOLARIS_THREADS, 1, [Using Solaris threads])
608
609		ACX_CHECK_COMPILER_FLAG(mt, [CFLAGS="$CFLAGS -mt"],
610			[CFLAGS="$CFLAGS -D_REENTRANT"])
611		ub_have_sol_threads=yes
612	] , [
613		AC_ERROR([no solaris threads found.])
614	])
615	fi
616fi
617
618fi # end of non-mingw check of thread libraries
619
620# Check for SYSLOG_FACILITY
621AC_ARG_WITH(syslog-facility, AC_HELP_STRING([--with-syslog-facility=LOCAL0 - LOCAL7], [ set SYSLOG_FACILITY, default DAEMON ]),
622	[ UNBOUND_SYSLOG_FACILITY="$withval" ], [])
623case "${UNBOUND_SYSLOG_FACILITY}" in
624
625  LOCAL[[0-7]]) UNBOUND_SYSLOG_FACILITY="LOG_${UNBOUND_SYSLOG_FACILITY}" ;;
626
627           *) UNBOUND_SYSLOG_FACILITY="LOG_DAEMON" ;;
628
629esac
630AC_DEFINE_UNQUOTED(UB_SYSLOG_FACILITY,${UNBOUND_SYSLOG_FACILITY},[the SYSLOG_FACILITY to use, default LOG_DAEMON])
631
632# Check for dynamic library module
633AC_ARG_WITH(dynlibmodule,
634   AC_HELP_STRING([--with-dynlibmodule],
635   [build dynamic library module, or --without-dynlibmodule to disable it. (default=no)]),
636   [], [ withval="no" ])
637
638if test x_$withval != x_no; then
639  AC_DEFINE(WITH_DYNLIBMODULE, 1, [Define if you want dynlib module.])
640  WITH_DYNLIBMODULE=yes
641  AC_SUBST(WITH_DYNLIBMODULE)
642  DYNLIBMOD_OBJ="dynlibmod.lo"
643  AC_SUBST(DYNLIBMOD_OBJ)
644  DYNLIBMOD_HEADER='$(srcdir)/dynlibmod/dynlibmod.h'
645  AC_SUBST(DYNLIBMOD_HEADER)
646  if test $on_mingw = "no"; then
647    DYNLIBMOD_EXTRALIBS="-ldl -export-dynamic"
648  else
649    DYNLIBMOD_EXTRALIBS="-Wl,--export-all-symbols,--out-implib,libunbound.a"
650  fi
651  AC_SUBST(DYNLIBMOD_EXTRALIBS)
652fi
653
654# Check for PyUnbound
655AC_ARG_WITH(pyunbound,
656   AC_HELP_STRING([--with-pyunbound],
657   [build PyUnbound, or --without-pyunbound to skip it. (default=no)]),
658   [], [ withval="no" ])
659
660ub_test_python=no
661ub_with_pyunbound=no
662if test x_$withval != x_no; then
663   ub_with_pyunbound=yes
664   ub_test_python=yes
665fi
666
667# Check for Python module
668AC_ARG_WITH(pythonmodule,
669   AC_HELP_STRING([--with-pythonmodule],
670   [build Python module, or --without-pythonmodule to disable script engine. (default=no)]),
671   [], [ withval="no" ])
672
673ub_with_pythonmod=no
674if test x_$withval != x_no; then
675   ub_with_pythonmod=yes
676   ub_test_python=yes
677fi
678
679# Check for Python & SWIG only on PyUnbound or PyModule
680if test x_$ub_test_python != x_no; then
681
682   # Check for Python
683   ub_have_python=no
684   ac_save_LIBS="$LIBS" dnl otherwise AC_PYTHON_DEVEL thrashes $LIBS
685   AC_PYTHON_DEVEL
686   if test ! -z "$PYTHON_VERSION"; then
687	if test `$PYTHON -c "print('$PYTHON_VERSION' >= '2.4.0')"` = "False"; then
688		AC_ERROR([Python version >= 2.4.0 is required])
689	fi
690
691      [PY_MAJOR_VERSION="`$PYTHON -c \"import sys; print(sys.version_info[0])\"`"]
692      AC_SUBST(PY_MAJOR_VERSION)
693      # Have Python
694      AC_DEFINE(HAVE_PYTHON,1,[Define if you have Python libraries and header files.])
695      if test -n "$LIBS"; then
696        LIBS="$PYTHON_LDFLAGS $LIBS"
697      else
698        LIBS="$PYTHON_LDFLAGS"
699      fi
700      if test -n "$CPPFLAGS"; then
701        CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
702      else
703        CPPFLAGS="$PYTHON_CPPFLAGS"
704      fi
705      if test "$PYTHON_LIBDIR" != "/usr/lib" -a "$PYTHON_LIBDIR" != "" -a "$PYTHON_LIBDIR" != "/usr/lib64"; then
706        ACX_RUNTIME_PATH_ADD([$PYTHON_LIBDIR])
707      fi
708      ub_have_python=yes
709      PKG_CHECK_EXISTS(["python${PY_MAJOR_VERSION}"],
710                       [PC_PY_DEPENDENCY="python${PY_MAJOR_VERSION}"],
711                       [PC_PY_DEPENDENCY="python"])
712      AC_SUBST(PC_PY_DEPENDENCY)
713
714      # Check for SWIG
715      ub_have_swig=no
716      AC_ARG_ENABLE(swig-version-check, AC_HELP_STRING([--disable-swig-version-check], [Disable swig version check to build python modules with older swig even though that is unreliable]))
717      if test "$enable_swig_version_check" = "yes"; then
718      	AC_PROG_SWIG(2.0.1)
719      else
720      	AC_PROG_SWIG
721      fi
722      AC_MSG_CHECKING(SWIG)
723      if test ! -x "$SWIG"; then
724         AC_ERROR([failed to find swig tool, install it, or do not build Python module and PyUnbound])
725      else
726         AC_DEFINE(HAVE_SWIG, 1, [Define if you have Swig libraries and header files.])
727         AC_SUBST(swig, "$SWIG")
728         AC_MSG_RESULT(present)
729
730         # If have Python & SWIG
731         # Declare PythonMod
732         if test x_$ub_with_pythonmod != x_no; then
733            AC_DEFINE(WITH_PYTHONMODULE, 1, [Define if you want Python module.])
734            WITH_PYTHONMODULE=yes
735            AC_SUBST(WITH_PYTHONMODULE)
736	    PYTHONMOD_OBJ="pythonmod.lo pythonmod_utils.lo"
737	    AC_SUBST(PYTHONMOD_OBJ)
738	    PYTHONMOD_HEADER='$(srcdir)/pythonmod/pythonmod.h'
739	    AC_SUBST(PYTHONMOD_HEADER)
740	    PYTHONMOD_INSTALL=pythonmod-install
741	    AC_SUBST(PYTHONMOD_INSTALL)
742	    PYTHONMOD_UNINSTALL=pythonmod-uninstall
743	    AC_SUBST(PYTHONMOD_UNINSTALL)
744         fi
745
746         # Declare PyUnbound
747         if test x_$ub_with_pyunbound != x_no; then
748            AC_DEFINE(WITH_PYUNBOUND, 1, [Define if you want PyUnbound.])
749            WITH_PYUNBOUND=yes
750            AC_SUBST(WITH_PYUNBOUND)
751	    PYUNBOUND_OBJ="libunbound_wrap.lo"
752	    AC_SUBST(PYUNBOUND_OBJ)
753	    PYUNBOUND_TARGET="_unbound.la"
754	    AC_SUBST(PYUNBOUND_TARGET)
755	    PYUNBOUND_INSTALL=pyunbound-install
756	    AC_SUBST(PYUNBOUND_INSTALL)
757	    PYUNBOUND_UNINSTALL=pyunbound-uninstall
758	    AC_SUBST(PYUNBOUND_UNINSTALL)
759         fi
760      fi
761   else
762      AC_MSG_RESULT([*** Python libraries not found, won't build PythonMod or PyUnbound ***])
763      ub_with_pyunbound=no
764      ub_with_pythonmod=no
765   fi
766fi
767
768if test "`uname`" = "NetBSD"; then
769	NETBSD_LINTFLAGS='"-D__RENAME(x)=" -D_NETINET_IN_H_'
770	AC_SUBST(NETBSD_LINTFLAGS)
771fi
772CONFIG_DATE=`date +%Y%m%d`
773AC_SUBST(CONFIG_DATE)
774
775# Checks for libraries.
776
777# libnss
778USE_NSS="no"
779AC_ARG_WITH([nss], AC_HELP_STRING([--with-nss=path],
780	[use libnss instead of openssl, installed at path.]),
781	[
782	USE_NSS="yes"
783	AC_DEFINE(HAVE_NSS, 1, [Use libnss for crypto])
784	if test "$withval" != "" -a "$withval" != "yes"; then
785		CPPFLAGS="$CPPFLAGS -I$withval/include/nss3"
786		LDFLAGS="$LDFLAGS -L$withval/lib"
787		ACX_RUNTIME_PATH_ADD([$withval/lib])
788		CPPFLAGS="-I$withval/include/nspr4 $CPPFLAGS"
789	else
790		CPPFLAGS="$CPPFLAGS -I/usr/include/nss3"
791		CPPFLAGS="-I/usr/include/nspr4 $CPPFLAGS"
792	fi
793        LIBS="$LIBS -lnss3 -lnspr4"
794	SSLLIB=""
795	PC_CRYPTO_DEPENDENCY="nss nspr"
796	AC_SUBST(PC_CRYPTO_DEPENDENCY)
797	]
798)
799
800# libnettle
801USE_NETTLE="no"
802AC_ARG_WITH([nettle], AC_HELP_STRING([--with-nettle=path],
803	[use libnettle as crypto library, installed at path.]),
804	[
805	USE_NETTLE="yes"
806	AC_DEFINE(HAVE_NETTLE, 1, [Use libnettle for crypto])
807	AC_CHECK_HEADERS([nettle/dsa-compat.h],,, [AC_INCLUDES_DEFAULT])
808	if test "$withval" != "" -a "$withval" != "yes"; then
809		CPPFLAGS="$CPPFLAGS -I$withval/include/nettle"
810		LDFLAGS="$LDFLAGS -L$withval/lib"
811		ACX_RUNTIME_PATH_ADD([$withval/lib])
812	else
813		CPPFLAGS="$CPPFLAGS -I/usr/include/nettle"
814	fi
815        LIBS="$LIBS -lhogweed -lnettle -lgmp"
816	SSLLIB=""
817	PC_CRYPTO_DEPENDENCY="hogweed nettle"
818	AC_SUBST(PC_CRYPTO_DEPENDENCY)
819	]
820)
821
822# openssl
823if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
824ACX_WITH_SSL
825ACX_LIB_SSL
826SSLLIB="-lssl"
827
828PC_CRYPTO_DEPENDENCY="libcrypto libssl"
829AC_SUBST(PC_CRYPTO_DEPENDENCY)
830
831# check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
832BAKLIBS="$LIBS"
833LIBS="-lssl $LIBS"
834AC_MSG_CHECKING([if libssl needs -lcrypt32])
835AC_TRY_LINK_FUNC([EVP_sha256], [
836	AC_MSG_RESULT([no])
837	LIBS="$BAKLIBS"
838], [
839	AC_MSG_RESULT([yes])
840	LIBS="$BAKLIBS"
841	LIBS="$LIBS -lcrypt32"
842])
843
844AC_MSG_CHECKING([for LibreSSL])
845if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
846	AC_MSG_RESULT([yes])
847	AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
848	# libressl provides these compat functions, but they may also be
849	# declared by the OS in libc.  See if they have been declared.
850	AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform])
851else
852	AC_MSG_RESULT([no])
853fi
854AC_CHECK_HEADERS([openssl/conf.h openssl/engine.h openssl/bn.h openssl/dh.h openssl/dsa.h openssl/rsa.h openssl/core_names.h],,, [AC_INCLUDES_DEFAULT])
855AC_CHECK_FUNCS([OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512 FIPS_mode EVP_MD_CTX_new OpenSSL_add_all_digests OPENSSL_init_crypto EVP_cleanup ENGINE_cleanup ERR_load_crypto_strings CRYPTO_cleanup_all_ex_data ERR_free_strings RAND_cleanup DSA_SIG_set0 EVP_dss1 EVP_DigestVerify EVP_aes_256_cbc EVP_EncryptInit_ex HMAC_Init_ex CRYPTO_THREADID_set_callback EVP_MAC_CTX_set_params])
856
857# these check_funcs need -lssl
858BAKLIBS="$LIBS"
859LIBS="-lssl $LIBS"
860AC_CHECK_FUNCS([OPENSSL_init_ssl SSL_CTX_set_security_level SSL_set1_host SSL_get0_peername X509_VERIFY_PARAM_set1_host SSL_CTX_set_ciphersuites SSL_CTX_set_tlsext_ticket_key_evp_cb SSL_CTX_set_alpn_select_cb])
861LIBS="$BAKLIBS"
862
863AC_CHECK_DECLS([SSL_COMP_get_compression_methods,sk_SSL_COMP_pop_free,SSL_CTX_set_ecdh_auto], [], [], [
864AC_INCLUDES_DEFAULT
865#ifdef HAVE_OPENSSL_ERR_H
866#include <openssl/err.h>
867#endif
868
869#ifdef HAVE_OPENSSL_RAND_H
870#include <openssl/rand.h>
871#endif
872
873#ifdef HAVE_OPENSSL_CONF_H
874#include <openssl/conf.h>
875#endif
876
877#ifdef HAVE_OPENSSL_ENGINE_H
878#include <openssl/engine.h>
879#endif
880#include <openssl/ssl.h>
881#include <openssl/evp.h>
882])
883
884if test "$ac_cv_func_HMAC_Init_ex" = "yes"; then
885# check function return type.
886AC_MSG_CHECKING(the return type of HMAC_Init_ex)
887AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
888#ifdef HAVE_OPENSSL_ERR_H
889#include <openssl/err.h>
890#endif
891
892#ifdef HAVE_OPENSSL_RAND_H
893#include <openssl/rand.h>
894#endif
895
896#ifdef HAVE_OPENSSL_CONF_H
897#include <openssl/conf.h>
898#endif
899
900#ifdef HAVE_OPENSSL_ENGINE_H
901#include <openssl/engine.h>
902#endif
903#include <openssl/ssl.h>
904#include <openssl/evp.h>
905], [
906	HMAC_CTX* hmac_ctx = NULL;
907	void* hmac_key = NULL;
908	const EVP_MD* digest = NULL;
909	int x = HMAC_Init_ex(hmac_ctx, hmac_key, 32, digest, NULL);
910	(void)x;
911])], [
912	AC_MSG_RESULT(int)
913], [
914	AC_MSG_RESULT(void)
915	AC_DEFINE([HMAC_INIT_EX_RETURNS_VOID], 1, [If HMAC_Init_ex() returns void])
916])
917fi
918
919fi
920AC_SUBST(SSLLIB)
921
922# libbsd
923AC_ARG_WITH([libbsd], AC_HELP_STRING([--with-libbsd], [Use portable libbsd functions]), [
924	AC_CHECK_HEADERS([bsd/string.h bsd/stdlib.h],,, [AC_INCLUDES_DEFAULT])
925	if test "x$ac_cv_header_bsd_string_h" = xyes -a "x$ac_cv_header_bsd_stdlib_h" = xyes; then
926		for func in strlcpy strlcat arc4random arc4random_uniform reallocarray; do
927			AC_SEARCH_LIBS([$func], [bsd], [
928				AC_DEFINE(HAVE_LIBBSD, 1, [Use portable libbsd functions])
929				PC_LIBBSD_DEPENDENCY=libbsd
930				AC_SUBST(PC_LIBBSD_DEPENDENCY)
931			])
932		done
933	fi
934])
935
936AC_ARG_ENABLE(sha1, AC_HELP_STRING([--disable-sha1], [Disable SHA1 RRSIG support, does not disable nsec3 support]))
937case "$enable_sha1" in
938	no)
939	;;
940	yes|*)
941	AC_DEFINE([USE_SHA1], [1], [Define this to enable SHA1 support.])
942	;;
943esac
944
945
946AC_ARG_ENABLE(sha2, AC_HELP_STRING([--disable-sha2], [Disable SHA256 and SHA512 RRSIG support]))
947case "$enable_sha2" in
948	no)
949	;;
950	yes|*)
951	AC_DEFINE([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
952	;;
953esac
954
955AC_ARG_ENABLE(subnet, AC_HELP_STRING([--enable-subnet], [Enable client subnet]))
956case "$enable_subnet" in
957	yes)
958	AC_DEFINE([CLIENT_SUBNET], [1], [Define this to enable client subnet option.])
959	SUBNET_OBJ="edns-subnet.lo subnetmod.lo addrtree.lo subnet-whitelist.lo"
960	AC_SUBST(SUBNET_OBJ)
961	SUBNET_HEADER='$(srcdir)/edns-subnet/subnetmod.h $(srcdir)/edns-subnet/edns-subnet.h $(srcdir)/edns-subnet/subnet-whitelist.h $(srcdir)/edns-subnet/addrtree.h'
962	AC_SUBST(SUBNET_HEADER)
963	;;
964	no|*)
965	;;
966esac
967
968# check wether gost also works
969AC_DEFUN([AC_CHECK_GOST_WORKS],
970[AC_REQUIRE([AC_PROG_CC])
971AC_MSG_CHECKING([if GOST works])
972if test c${cross_compiling} = cno; then
973BAKCFLAGS="$CFLAGS"
974if test -n "$ssldir"; then
975	CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
976fi
977AC_RUN_IFELSE([AC_LANG_SOURCE([[
978#include <string.h>
979#include <openssl/ssl.h>
980#include <openssl/evp.h>
981#include <openssl/engine.h>
982#include <openssl/conf.h>
983/* routine to load gost (from sldns) */
984int load_gost_id(void)
985{
986	static int gost_id = 0;
987	const EVP_PKEY_ASN1_METHOD* meth;
988	ENGINE* e;
989
990	if(gost_id) return gost_id;
991
992	/* see if configuration loaded gost implementation from other engine*/
993	meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
994	if(meth) {
995		EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
996		return gost_id;
997	}
998
999	/* see if engine can be loaded already */
1000	e = ENGINE_by_id("gost");
1001	if(!e) {
1002		/* load it ourself, in case statically linked */
1003		ENGINE_load_builtin_engines();
1004		ENGINE_load_dynamic();
1005		e = ENGINE_by_id("gost");
1006	}
1007	if(!e) {
1008		/* no gost engine in openssl */
1009		return 0;
1010	}
1011	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1012		ENGINE_finish(e);
1013		ENGINE_free(e);
1014		return 0;
1015	}
1016
1017	meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
1018	if(!meth) {
1019		/* algo not found */
1020		ENGINE_finish(e);
1021		ENGINE_free(e);
1022		return 0;
1023	}
1024	EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
1025	return gost_id;
1026}
1027int main(void) {
1028	EVP_MD_CTX* ctx;
1029	const EVP_MD* md;
1030	unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
1031	const char* str = "Hello world";
1032	const unsigned char check[] = {
1033		0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
1034		0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
1035		0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
1036		0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
1037	};
1038	OPENSSL_config(NULL);
1039	(void)load_gost_id();
1040	md = EVP_get_digestbyname("md_gost94");
1041	if(!md) return 1;
1042	memset(digest, 0, sizeof(digest));
1043	ctx = EVP_MD_CTX_create();
1044	if(!ctx) return 2;
1045	if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
1046	if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
1047	if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
1048	/* uncomment to see the hash calculated.
1049		{int i;
1050		for(i=0; i<32; i++)
1051			printf(" %2.2x", (int)digest[i]);
1052		printf("\n");}
1053	*/
1054	if(memcmp(digest, check, sizeof(check)) != 0)
1055		return 6;
1056	return 0;
1057}
1058]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
1059CFLAGS="$BAKCFLAGS"
1060else
1061eval "ac_cv_c_gost_works=maybe"
1062fi
1063AC_MSG_RESULT($ac_cv_c_gost_works)
1064])dnl
1065
1066AC_ARG_ENABLE(gost, AC_HELP_STRING([--disable-gost], [Disable GOST support]))
1067use_gost="no"
1068if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1069case "$enable_gost" in
1070	no)
1071	;;
1072	*)
1073	AC_CHECK_FUNC(EVP_PKEY_set_type_str, [:],[AC_MSG_ERROR([OpenSSL 1.0.0 is needed for GOST support])])
1074	AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([OpenSSL does not support ECC, needed for GOST support])])
1075	AC_CHECK_GOST_WORKS
1076	if test "$ac_cv_c_gost_works" != no; then
1077		use_gost="yes"
1078		AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
1079	fi
1080	;;
1081esac
1082fi dnl !USE_NSS && !USE_NETTLE
1083
1084AC_ARG_ENABLE(ecdsa, AC_HELP_STRING([--disable-ecdsa], [Disable ECDSA support]))
1085use_ecdsa="no"
1086case "$enable_ecdsa" in
1087    no)
1088      ;;
1089    *)
1090      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1091	      AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade or rerun with --disable-ecdsa])])
1092	      AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade or rerun with --disable-ecdsa])])
1093	      AC_CHECK_DECLS([NID_X9_62_prime256v1, NID_secp384r1], [], [AC_MSG_ERROR([OpenSSL does not support the ECDSA curves: please upgrade or rerun with --disable-ecdsa])], [AC_INCLUDES_DEFAULT
1094#include <openssl/evp.h>
1095	      ])
1096	      # see if OPENSSL 1.0.0 or later (has EVP MD and Verify independency)
1097	      AC_MSG_CHECKING([if openssl supports SHA2 and ECDSA with EVP])
1098	      if grep OPENSSL_VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "OpenSSL" >/dev/null; then
1099		if grep OPENSSL_VERSION_NUMBER $ssldir/include/openssl/opensslv.h | grep 0x0 >/dev/null; then
1100		  AC_MSG_RESULT([no])
1101		  AC_DEFINE_UNQUOTED([USE_ECDSA_EVP_WORKAROUND], [1], [Define this to enable an EVP workaround for older openssl])
1102		else
1103		  AC_MSG_RESULT([yes])
1104		fi
1105	      else
1106		# not OpenSSL, thus likely LibreSSL, which supports it
1107		AC_MSG_RESULT([yes])
1108	      fi
1109      fi
1110      # we now know we have ECDSA and the required curves.
1111      AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
1112      use_ecdsa="yes"
1113      ;;
1114esac
1115
1116AC_ARG_ENABLE(dsa, AC_HELP_STRING([--disable-dsa], [Disable DSA support]))
1117use_dsa="no"
1118case "$enable_dsa" in
1119    yes)
1120      # detect if DSA is supported, and turn it off if not.
1121      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1122      AC_CHECK_FUNC(DSA_SIG_new, [
1123      AC_CHECK_TYPE(DSA_SIG*, [
1124      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1125      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1126               fi ], [
1127AC_INCLUDES_DEFAULT
1128#ifdef HAVE_OPENSSL_ERR_H
1129#include <openssl/err.h>
1130#endif
1131
1132#ifdef HAVE_OPENSSL_RAND_H
1133#include <openssl/rand.h>
1134#endif
1135
1136#ifdef HAVE_OPENSSL_CONF_H
1137#include <openssl/conf.h>
1138#endif
1139
1140#ifdef HAVE_OPENSSL_ENGINE_H
1141#include <openssl/engine.h>
1142#endif
1143      ])
1144      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1145               fi ])
1146      else
1147      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1148      fi
1149      ;;
1150    *)
1151      # disable dsa by default, RFC 8624 section 3.1, validators MUST NOT
1152      # support DSA for DNSSEC Validation.
1153      ;;
1154esac
1155
1156AC_ARG_ENABLE(ed25519, AC_HELP_STRING([--disable-ed25519], [Disable ED25519 support]))
1157use_ed25519="no"
1158case "$enable_ed25519" in
1159    no)
1160      ;;
1161    *)
1162      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1163	      AC_CHECK_DECLS([NID_ED25519], [
1164      		use_ed25519="yes"
1165	      ], [ if test "x$enable_ed25519" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED25519 and you used --enable-ed25519.])
1166	      	fi ], [AC_INCLUDES_DEFAULT
1167#include <openssl/evp.h>
1168	      ])
1169      fi
1170      if test $USE_NETTLE = "yes"; then
1171		AC_CHECK_HEADERS([nettle/eddsa.h], use_ed25519="yes",, [AC_INCLUDES_DEFAULT])
1172      fi
1173      if test $use_ed25519 = "yes"; then
1174      		AC_DEFINE_UNQUOTED([USE_ED25519], [1], [Define this to enable ED25519 support.])
1175      fi
1176      ;;
1177esac
1178
1179AC_ARG_ENABLE(ed448, AC_HELP_STRING([--disable-ed448], [Disable ED448 support]))
1180use_ed448="no"
1181case "$enable_ed448" in
1182    no)
1183      ;;
1184    *)
1185      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1186	      AC_CHECK_DECLS([NID_ED448], [
1187      		use_ed448="yes"
1188	      ], [ if test "x$enable_ed448" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED448 and you used --enable-ed448.])
1189	      	fi ], [AC_INCLUDES_DEFAULT
1190#include <openssl/evp.h>
1191	      ])
1192      fi
1193      if test $use_ed448 = "yes"; then
1194      		AC_DEFINE_UNQUOTED([USE_ED448], [1], [Define this to enable ED448 support.])
1195      fi
1196      ;;
1197esac
1198
1199AC_ARG_ENABLE(event-api, AC_HELP_STRING([--enable-event-api], [Enable (experimental) pluggable event base libunbound API installed to unbound-event.h]))
1200case "$enable_event_api" in
1201    yes)
1202      AC_SUBST(UNBOUND_EVENT_INSTALL, [unbound-event-install])
1203      AC_SUBST(UNBOUND_EVENT_UNINSTALL, [unbound-event-uninstall])
1204      ;;
1205    *)
1206      ;;
1207esac
1208
1209AC_ARG_ENABLE(tfo-client, AC_HELP_STRING([--enable-tfo-client], [Enable TCP Fast Open for client mode]))
1210case "$enable_tfo_client" in
1211	yes)
1212		case `uname` in
1213			Linux) AC_CHECK_DECL([MSG_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1214			                     [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1215			                     [AC_INCLUDES_DEFAULT
1216#include <netinet/tcp.h>
1217])
1218					AC_DEFINE_UNQUOTED([USE_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1219			  ;;
1220			Darwin) AC_CHECK_DECL([CONNECT_RESUME_ON_READ_WRITE], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1221			                      [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1222			                      [AC_INCLUDES_DEFAULT
1223#include <sys/socket.h>
1224])
1225					AC_DEFINE_UNQUOTED([USE_OSX_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1226			  ;;
1227		esac
1228	;;
1229	no|*)
1230		;;
1231esac
1232
1233AC_ARG_ENABLE(tfo-server, AC_HELP_STRING([--enable-tfo-server], [Enable TCP Fast Open for server mode]))
1234case "$enable_tfo_server" in
1235	yes)
1236	      AC_CHECK_DECL([TCP_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support server mode TFO])], [AC_MSG_ERROR([TCP Fast Open is not available for server mode: please rerun without --enable-tfo-server])], [AC_INCLUDES_DEFAULT
1237#include <netinet/tcp.h>
1238	      ])
1239		AC_DEFINE_UNQUOTED([USE_TCP_FASTOPEN], [1], [Define this to enable server TCP Fast Open.])
1240		;;
1241	no|*)
1242		;;
1243esac
1244
1245# check for libevent
1246AC_ARG_WITH(libevent, AC_HELP_STRING([--with-libevent=pathname],
1247    [use libevent (will check /usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr  or you can specify an explicit path). Slower, but allows use of large outgoing port ranges.]),
1248    [ ],[ with_libevent="no" ])
1249if test "x_$with_libevent" != x_no; then
1250        AC_DEFINE([USE_LIBEVENT], [1], [Define if you enable libevent])
1251        AC_MSG_CHECKING(for libevent)
1252        if test "x_$with_libevent" = x_ -o "x_$with_libevent" = x_yes; then
1253            with_libevent="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1254        fi
1255        for dir in $with_libevent; do
1256            thedir="$dir"
1257            if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
1258                found_libevent="yes"
1259				dnl assume /usr is in default path.
1260				if test "$thedir" != "/usr"; then
1261				    CPPFLAGS="$CPPFLAGS -I$thedir/include"
1262				fi
1263				break;
1264		    fi
1265        done
1266        if test x_$found_libevent != x_yes; then
1267		if test -f "$dir/event.h" -a \( -f "$dir/libevent.la" -o -f "$dir/libev.la" \) ; then
1268			# libevent source directory
1269			AC_MSG_RESULT(found in $thedir)
1270			CPPFLAGS="$CPPFLAGS -I$thedir -I$thedir/include"
1271			BAK_LDFLAGS_SET="1"
1272			BAK_LDFLAGS="$LDFLAGS"
1273			# remove evdns from linking
1274			mkdir build >/dev/null 2>&1
1275			mkdir build/libevent >/dev/null 2>&1
1276			mkdir build/libevent/.libs >/dev/null 2>&1
1277			ev_files_o=`ls $thedir/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1278			ev_files_lo=`ls $thedir/*.lo | grep -v evdns\.lo | grep -v bufferevent_openssl\.lo`
1279			ev_files_libso=`ls $thedir/.libs/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1280			cp $ev_files_o build/libevent
1281			cp $ev_files_lo build/libevent
1282			cp $ev_files_libso build/libevent/.libs
1283			LATE_LDFLAGS="build/libevent/*.lo -lm"
1284			LDFLAGS="build/libevent/*.o $LDFLAGS -lm"
1285		else
1286            AC_MSG_ERROR([Cannot find the libevent library in $with_libevent
1287You can restart ./configure --with-libevent=no to use a builtin alternative.
1288Please note that this alternative is not as capable as libevent when using
1289large outgoing port ranges.  ])
1290		fi
1291        else
1292            AC_MSG_RESULT(found in $thedir)
1293	    dnl if event2 exists and no event lib in dir itself, use subdir
1294	    if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
1295		    LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
1296		    ACX_RUNTIME_PATH_ADD([$thedir/lib/event2])
1297	    else
1298		    dnl assume /usr is in default path, do not add "".
1299		    if test "$thedir" != "/usr" -a "$thedir" != ""; then
1300			LDFLAGS="$LDFLAGS -L$thedir/lib"
1301			ACX_RUNTIME_PATH_ADD([$thedir/lib])
1302		    fi
1303	    fi
1304        fi
1305	# check for library used by libevent after 1.3c
1306	AC_SEARCH_LIBS([clock_gettime], [rt])
1307
1308	# is the event.h header libev or libevent?
1309	AC_CHECK_HEADERS([event.h],,, [AC_INCLUDES_DEFAULT])
1310	AC_CHECK_DECL(EV_VERSION_MAJOR, [
1311		AC_SEARCH_LIBS(event_set, [ev])
1312	],[
1313		AC_SEARCH_LIBS(event_set, [event])
1314	],[AC_INCLUDES_DEFAULT
1315#include <event.h>
1316	])
1317	AC_CHECK_FUNCS([event_base_free]) # only in libevent 1.2 and later
1318	AC_CHECK_FUNCS([event_base_once]) # only in libevent 1.4.1 and later
1319	AC_CHECK_FUNCS([event_base_new]) # only in libevent 1.4.1 and later
1320	AC_CHECK_FUNCS([event_base_get_method]) # only in libevent 1.4.3 and later
1321	AC_CHECK_FUNCS([ev_loop]) # only in libev. (tested on 3.51)
1322	AC_CHECK_FUNCS([ev_default_loop]) # only in libev. (tested on 4.00)
1323	AC_CHECK_FUNCS([event_assign]) # in libevent, for thread-safety
1324	AC_CHECK_DECLS([evsignal_assign], [], [], [AC_INCLUDES_DEFAULT
1325#ifdef HAVE_EVENT_H
1326#  include <event.h>
1327#else
1328#  include "event2/event.h"
1329#endif
1330	])
1331        PC_LIBEVENT_DEPENDENCY="libevent"
1332        AC_SUBST(PC_LIBEVENT_DEPENDENCY)
1333	if test -n "$BAK_LDFLAGS_SET"; then
1334		LDFLAGS="$BAK_LDFLAGS"
1335	fi
1336else
1337	AC_DEFINE(USE_MINI_EVENT, 1, [Define if you want to use internal select based events])
1338fi
1339
1340# check for libexpat
1341AC_ARG_WITH(libexpat, AC_HELP_STRING([--with-libexpat=path],
1342    [specify explicit path for libexpat.]),
1343    [ ],[ withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr" ])
1344AC_MSG_CHECKING(for libexpat)
1345found_libexpat="no"
1346for dir in $withval ; do
1347            if test -f "$dir/include/expat.h"; then
1348		found_libexpat="yes"
1349		dnl assume /usr is in default path.
1350		if test "$dir" != "/usr"; then
1351                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1352		    LDFLAGS="$LDFLAGS -L$dir/lib"
1353		fi
1354            	AC_MSG_RESULT(found in $dir)
1355                break;
1356            fi
1357done
1358if test x_$found_libexpat != x_yes; then
1359	AC_ERROR([Could not find libexpat, expat.h])
1360fi
1361AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
1362AC_CHECK_DECLS([XML_StopParser], [], [], [AC_INCLUDES_DEFAULT
1363#include <expat.h>
1364])
1365
1366# hiredis (redis C client for cachedb)
1367AC_ARG_WITH(libhiredis, AC_HELP_STRING([--with-libhiredis=path],
1368    [specify explicit path for libhiredis.]),
1369    [ ],[ withval="no" ])
1370found_libhiredis="no"
1371if test x_$withval = x_yes -o x_$withval != x_no; then
1372   AC_MSG_CHECKING(for libhiredis)
1373   if test x_$withval = x_ -o x_$withval = x_yes; then
1374            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1375   fi
1376   for dir in $withval ; do
1377            if test -f "$dir/include/hiredis/hiredis.h"; then
1378		found_libhiredis="yes"
1379		dnl assume /usr is in default path.
1380		if test "$dir" != "/usr"; then
1381                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1382		    LDFLAGS="$LDFLAGS -L$dir/lib"
1383		fi
1384		AC_MSG_RESULT(found in $dir)
1385		AC_DEFINE([USE_REDIS], [1], [Define this to use hiredis client.])
1386		LIBS="$LIBS -lhiredis"
1387                break;
1388            fi
1389    done
1390    if test x_$found_libhiredis != x_yes; then
1391	AC_ERROR([Could not find libhiredis, hiredis.h])
1392    fi
1393    AC_CHECK_HEADERS([hiredis/hiredis.h],,, [AC_INCLUDES_DEFAULT])
1394    AC_CHECK_DECLS([redisConnect], [], [], [AC_INCLUDES_DEFAULT
1395    #include <hiredis/hiredis.h>
1396    ])
1397fi
1398
1399# nghttp2
1400AC_ARG_WITH(libnghttp2, AC_HELP_STRING([--with-libnghttp2=path],
1401    [specify explicit path for libnghttp2.]),
1402    [ ],[ withval="no" ])
1403found_libnghttp2="no"
1404if test x_$withval = x_yes -o x_$withval != x_no; then
1405   AC_MSG_CHECKING(for libnghttp2)
1406   if test x_$withval = x_ -o x_$withval = x_yes; then
1407            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1408   fi
1409   for dir in $withval ; do
1410            if test -f "$dir/include/nghttp2/nghttp2.h"; then
1411		found_libnghttp2="yes"
1412		dnl assume /usr is in default path.
1413		if test "$dir" != "/usr"; then
1414                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1415		    LDFLAGS="$LDFLAGS -L$dir/lib"
1416		fi
1417		AC_MSG_RESULT(found in $dir)
1418		AC_DEFINE([HAVE_NGHTTP2], [1], [Define this to use nghttp2 client.])
1419		LIBS="$LIBS -lnghttp2"
1420                break;
1421            fi
1422    done
1423    if test x_$found_libnghttp2 != x_yes; then
1424	AC_ERROR([Could not find libnghttp2, nghttp2.h])
1425    fi
1426    AC_CHECK_HEADERS([nghttp2/nghttp2.h],,, [AC_INCLUDES_DEFAULT])
1427    AC_CHECK_DECLS([nghttp2_session_server_new], [], [], [AC_INCLUDES_DEFAULT
1428    #include <nghttp2/nghttp2.h>
1429    ])
1430fi
1431
1432# set static linking for uninstalled libraries if requested
1433AC_SUBST(staticexe)
1434staticexe=""
1435AC_ARG_ENABLE(static-exe, AC_HELP_STRING([--enable-static-exe],
1436	[ enable to compile executables statically against (event) uninstalled libs, for debug purposes ]),
1437	, )
1438if test x_$enable_static_exe = x_yes; then
1439	staticexe="-static"
1440	if test "$on_mingw" = yes; then
1441		staticexe="-all-static"
1442		# for static compile, include gdi32 and zlib here.
1443		if echo $LIBS | grep 'lgdi32' >/dev/null; then
1444			:
1445		else
1446			LIBS="$LIBS -lgdi32"
1447		fi
1448		LIBS="$LIBS -lz"
1449	fi
1450fi
1451
1452# set full static linking if requested
1453AC_ARG_ENABLE(fully-static, AC_HELP_STRING([--enable-fully-static],
1454	[ enable to compile fully static ]),
1455	, )
1456if test x_$enable_fully_static = x_yes; then
1457	staticexe="-all-static"
1458	if test "$on_mingw" = yes; then
1459		# for static compile, include gdi32 and zlib here.
1460		if echo $LIBS | grep 'lgdi32' >/dev/null; then
1461			:
1462		else
1463			LIBS="$LIBS -lgdi32"
1464		fi
1465		LIBS="$LIBS -lz"
1466	fi
1467fi
1468
1469# set lock checking if requested
1470AC_ARG_ENABLE(lock_checks, AC_HELP_STRING([--enable-lock-checks],
1471	[ enable to check lock and unlock calls, for debug purposes ]),
1472	, )
1473if test x_$enable_lock_checks = x_yes; then
1474	AC_DEFINE(ENABLE_LOCK_CHECKS, 1, [Define if you want to use debug lock checking (slow).])
1475	CHECKLOCK_OBJ="checklocks.lo"
1476	AC_SUBST(CHECKLOCK_OBJ)
1477fi
1478
1479ACX_CHECK_GETADDRINFO_WITH_INCLUDES
1480if test "$USE_WINSOCK" = 1; then
1481	AC_DEFINE(UB_ON_WINDOWS, 1, [Use win32 resources and API])
1482	AC_CHECK_HEADERS([iphlpapi.h],,, [AC_INCLUDES_DEFAULT
1483#include <windows.h>
1484	])
1485	AC_CHECK_TOOL(WINDRES, windres)
1486	LIBS="$LIBS -liphlpapi -lcrypt32"
1487	WINAPPS="unbound-service-install.exe unbound-service-remove.exe anchor-update.exe"
1488	AC_SUBST(WINAPPS)
1489	WIN_DAEMON_SRC="winrc/win_svc.c winrc/w_inst.c"
1490	AC_SUBST(WIN_DAEMON_SRC)
1491	WIN_DAEMON_OBJ="win_svc.lo w_inst.lo"
1492	AC_SUBST(WIN_DAEMON_OBJ)
1493	WIN_DAEMON_OBJ_LINK="rsrc_unbound.o"
1494	AC_SUBST(WIN_DAEMON_OBJ_LINK)
1495	WIN_HOST_OBJ_LINK="rsrc_unbound_host.o"
1496	AC_SUBST(WIN_HOST_OBJ_LINK)
1497	WIN_UBANCHOR_OBJ_LINK="rsrc_unbound_anchor.o log.lo locks.lo"
1498	AC_SUBST(WIN_UBANCHOR_OBJ_LINK)
1499	WIN_CONTROL_OBJ_LINK="rsrc_unbound_control.o"
1500	AC_SUBST(WIN_CONTROL_OBJ_LINK)
1501	WIN_CHECKCONF_OBJ_LINK="rsrc_unbound_checkconf.o"
1502	AC_SUBST(WIN_CHECKCONF_OBJ_LINK)
1503fi
1504if test $ac_cv_func_getaddrinfo = no; then
1505	AC_LIBOBJ([fake-rfc2553])
1506fi
1507# check after getaddrinfo for its libraries
1508ACX_FUNC_IOCTLSOCKET
1509
1510# see if daemon(3) exists, and if it is deprecated.
1511AC_CHECK_FUNCS([daemon])
1512if test $ac_cv_func_daemon = yes; then
1513	ACX_FUNC_DEPRECATED([daemon], [(void)daemon(0, 0);], [
1514#include <stdlib.h>
1515])
1516fi
1517
1518AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
1519AC_INCLUDES_DEFAULT
1520#ifdef HAVE_SYS_UN_H
1521#include <sys/un.h>
1522#endif
1523])
1524AC_CHECK_MEMBERS([struct in_pktinfo.ipi_spec_dst],,,[
1525AC_INCLUDES_DEFAULT
1526#if HAVE_SYS_PARAM_H
1527#include <sys/param.h>
1528#endif
1529
1530#ifdef HAVE_SYS_SOCKET_H
1531#include <sys/socket.h>
1532#endif
1533
1534#ifdef HAVE_SYS_UIO_H
1535#include <sys/uio.h>
1536#endif
1537
1538#ifdef HAVE_NETINET_IN_H
1539#include <netinet/in.h>
1540#endif
1541
1542#ifdef HAVE_NETINET_TCP_H
1543#include <netinet/tcp.h>
1544#endif
1545
1546#ifdef HAVE_ARPA_INET_H
1547#include <arpa/inet.h>
1548#endif
1549
1550#ifdef HAVE_WINSOCK2_H
1551#include <winsock2.h>
1552#endif
1553
1554#ifdef HAVE_WS2TCPIP_H
1555#include <ws2tcpip.h>
1556#endif
1557])
1558
1559AC_MSG_CHECKING([for htobe64])
1560AC_LINK_IFELSE([AC_LANG_PROGRAM([
1561#include <stdio.h>
1562#ifdef HAVE_ENDIAN_H
1563#  include <endian.h>
1564#endif
1565#ifdef HAVE_SYS_ENDIAN_H
1566#  include <sys/endian.h>
1567#endif
1568], [unsigned long long x = htobe64(0); printf("%u", (unsigned)x);])],
1569  AC_MSG_RESULT(yes)
1570  AC_DEFINE(HAVE_HTOBE64, 1, [If we have htobe64]),
1571  AC_MSG_RESULT(no))
1572
1573AC_MSG_CHECKING([for be64toh])
1574AC_LINK_IFELSE([AC_LANG_PROGRAM([
1575#include <stdio.h>
1576#ifdef HAVE_ENDIAN_H
1577#  include <endian.h>
1578#endif
1579#ifdef HAVE_SYS_ENDIAN_H
1580#  include <sys/endian.h>
1581#endif
1582], [unsigned long long x = be64toh(0); printf("%u", (unsigned)x);])],
1583  AC_MSG_RESULT(yes)
1584  AC_DEFINE(HAVE_BE64TOH, 1, [If we have be64toh]),
1585  AC_MSG_RESULT(no))
1586
1587AC_SEARCH_LIBS([setusercontext], [util])
1588AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam endpwent getrlimit setrlimit setsid chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent fsync shmget accept4 getifaddrs])
1589AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
1590AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
1591
1592# check if setreuid en setregid fail, on MacOSX10.4(darwin8).
1593if echo $target_os | grep darwin8 > /dev/null; then
1594	AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
1595fi
1596AC_CHECK_DECLS([inet_pton,inet_ntop], [], [], [
1597AC_INCLUDES_DEFAULT
1598#ifdef HAVE_NETINET_IN_H
1599#include <netinet/in.h>
1600#endif
1601
1602#ifdef HAVE_NETINET_TCP_H
1603#include <netinet/tcp.h>
1604#endif
1605
1606#ifdef HAVE_ARPA_INET_H
1607#include <arpa/inet.h>
1608#endif
1609
1610#ifdef HAVE_WINSOCK2_H
1611#include <winsock2.h>
1612#endif
1613
1614#ifdef HAVE_WS2TCPIP_H
1615#include <ws2tcpip.h>
1616#endif
1617])
1618AC_REPLACE_FUNCS(inet_aton)
1619AC_REPLACE_FUNCS(inet_pton)
1620AC_REPLACE_FUNCS(inet_ntop)
1621AC_REPLACE_FUNCS(snprintf)
1622# test if snprintf return the proper length
1623if test "x$ac_cv_func_snprintf" = xyes; then
1624    if test c${cross_compiling} = cno; then
1625	AC_MSG_CHECKING([for correct snprintf return value])
1626	AC_RUN_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1627[[
1628int main(void) { return !(snprintf(NULL, 0, "test") == 4); }
1629]])], [AC_MSG_RESULT(yes)], [
1630		AC_MSG_RESULT(no)
1631		AC_DEFINE([SNPRINTF_RET_BROKEN], [], [define if (v)snprintf does not return length needed, (but length used)])
1632		AC_LIBOBJ(snprintf)
1633	  ])
1634    fi
1635fi
1636AC_REPLACE_FUNCS(strlcat)
1637AC_REPLACE_FUNCS(strlcpy)
1638AC_REPLACE_FUNCS(memmove)
1639AC_REPLACE_FUNCS(gmtime_r)
1640AC_REPLACE_FUNCS(isblank)
1641AC_REPLACE_FUNCS(explicit_bzero)
1642dnl without CTIME, ARC4-functions and without reallocarray.
1643LIBOBJ_WITHOUT_CTIMEARC4="$LIBOBJS"
1644AC_SUBST(LIBOBJ_WITHOUT_CTIMEARC4)
1645AC_MSG_CHECKING([for reallocarray])
1646AC_LINK_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1647[[
1648#ifndef _OPENBSD_SOURCE
1649#define _OPENBSD_SOURCE 1
1650#endif
1651#include <stdlib.h>
1652int main(void) {
1653	void* p = reallocarray(NULL, 10, 100);
1654	free(p);
1655	return 0;
1656}
1657]])], [AC_MSG_RESULT(yes)
1658	AC_DEFINE(HAVE_REALLOCARRAY, 1, [If we have reallocarray(3)])
1659], [
1660	AC_MSG_RESULT(no)
1661	AC_LIBOBJ(reallocarray)
1662])
1663AC_CHECK_DECLS([reallocarray])
1664if test "$USE_NSS" = "no"; then
1665	AC_REPLACE_FUNCS(arc4random)
1666	AC_REPLACE_FUNCS(arc4random_uniform)
1667	if test "$ac_cv_func_arc4random" = "no"; then
1668		AC_LIBOBJ(arc4_lock)
1669		AC_CHECK_FUNCS([getentropy],,[
1670		    if test "$USE_WINSOCK" = 1; then
1671			AC_LIBOBJ(getentropy_win)
1672		    else
1673			case "$host" in
1674			Darwin|*darwin*)
1675				AC_LIBOBJ(getentropy_osx)
1676			;;
1677			*solaris*|*sunos*|SunOS)
1678				AC_LIBOBJ(getentropy_solaris)
1679				AC_CHECK_HEADERS([sys/sha2.h],, [
1680					AC_CHECK_FUNCS([SHA512_Update],,[
1681						AC_LIBOBJ(sha512)
1682					])
1683				], [AC_INCLUDES_DEFAULT])
1684				if test "$ac_cv_header_sys_sha2_h" = "yes"; then
1685					# this lib needed for sha2 on solaris
1686					LIBS="$LIBS -lmd"
1687				fi
1688				AC_SEARCH_LIBS([clock_gettime], [rt])
1689			;;
1690			*freebsd*|*FreeBSD)
1691				AC_LIBOBJ(getentropy_freebsd)
1692			;;
1693			*linux*|Linux|*)
1694				AC_LIBOBJ(getentropy_linux)
1695				AC_CHECK_FUNCS([SHA512_Update],,[
1696					AC_DEFINE([COMPAT_SHA512], [1], [Do sha512 definitions in config.h])
1697					AC_LIBOBJ(sha512)
1698				])
1699				AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
1700				AC_CHECK_FUNCS([getauxval])
1701				AC_SEARCH_LIBS([clock_gettime], [rt])
1702			;;
1703			esac
1704		    fi
1705		])
1706	fi
1707fi
1708LIBOBJ_WITHOUT_CTIME="$LIBOBJS"
1709AC_SUBST(LIBOBJ_WITHOUT_CTIME)
1710AC_REPLACE_FUNCS(ctime_r)
1711AC_REPLACE_FUNCS(strsep)
1712
1713AC_ARG_ENABLE(allsymbols, AC_HELP_STRING([--enable-allsymbols], [export all symbols from libunbound and link binaries to it, smaller install size but libunbound export table is polluted by internal symbols]))
1714case "$enable_allsymbols" in
1715	yes)
1716	COMMON_OBJ_ALL_SYMBOLS=""
1717	UBSYMS=""
1718	EXTRALINK="-L. -L.libs -lunbound"
1719	AC_DEFINE(EXPORT_ALL_SYMBOLS, 1, [Define this if you enabled-allsymbols from libunbound to link binaries to it for smaller install size, but the libunbound export table is polluted by internal symbols])
1720	;;
1721	no|*)
1722	COMMON_OBJ_ALL_SYMBOLS='$(COMMON_OBJ)'
1723	UBSYMS='-export-symbols $(srcdir)/libunbound/ubsyms.def'
1724	EXTRALINK=""
1725	;;
1726esac
1727AC_SUBST(COMMON_OBJ_ALL_SYMBOLS)
1728AC_SUBST(EXTRALINK)
1729AC_SUBST(UBSYMS)
1730if test x_$enable_lock_checks = x_yes; then
1731	UBSYMS="-export-symbols clubsyms.def"
1732	cp ${srcdir}/libunbound/ubsyms.def clubsyms.def
1733	echo lock_protect >> clubsyms.def
1734	echo lock_unprotect >> clubsyms.def
1735	echo lock_get_mem >> clubsyms.def
1736	echo checklock_start >> clubsyms.def
1737	echo checklock_stop >> clubsyms.def
1738	echo checklock_lock >> clubsyms.def
1739	echo checklock_unlock >> clubsyms.def
1740	echo checklock_init >> clubsyms.def
1741	echo checklock_thrcreate >> clubsyms.def
1742	echo checklock_thrjoin >> clubsyms.def
1743fi
1744
1745# check for dnstap if requested
1746dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
1747    [
1748        AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
1749        AC_SUBST([ENABLE_DNSTAP], [1])
1750
1751        AC_SUBST([opt_dnstap_socket_path])
1752        ACX_ESCAPE_BACKSLASH($opt_dnstap_socket_path, hdr_dnstap_socket_path)
1753        AC_DEFINE_UNQUOTED(DNSTAP_SOCKET_PATH,
1754            ["$hdr_dnstap_socket_path"], [default dnstap socket path])
1755	AC_SUBST(DNSTAP_SOCKET_PATH,["$hdr_dnstap_socket_path"])
1756
1757        AC_SUBST([DNSTAP_SRC], ["dnstap/dnstap.c dnstap/dnstap.pb-c.c dnstap/dnstap_fstrm.c dnstap/dtstream.c"])
1758        AC_SUBST([DNSTAP_OBJ], ["dnstap.lo dnstap.pb-c.lo dnstap_fstrm.lo dtstream.lo"])
1759    ],
1760    [
1761        AC_SUBST([ENABLE_DNSTAP], [0])
1762    ]
1763)
1764
1765# check for dnscrypt if requested
1766dnsc_DNSCRYPT([
1767        AC_DEFINE([USE_DNSCRYPT], [1], [Define to 1 to enable dnscrypt support])
1768        AC_SUBST([ENABLE_DNSCRYPT], [1])
1769
1770        AC_SUBST([DNSCRYPT_SRC], ["dnscrypt/dnscrypt.c"])
1771        AC_SUBST([DNSCRYPT_OBJ], ["dnscrypt.lo"])
1772    ],
1773    [
1774        AC_SUBST([ENABLE_DNSCRYPT], [0])
1775    ]
1776)
1777
1778# check for cachedb if requested
1779AC_ARG_ENABLE(cachedb, AC_HELP_STRING([--enable-cachedb], [enable cachedb module that can use external cache storage]))
1780# turn on cachedb when hiredis support is enabled.
1781if test "$found_libhiredis" = "yes"; then enable_cachedb="yes"; fi
1782case "$enable_cachedb" in
1783    yes)
1784    	AC_DEFINE([USE_CACHEDB], [1], [Define to 1 to use cachedb support])
1785    	;;
1786    no|*)
1787    	# nothing
1788    	;;
1789esac
1790
1791# check for ipsecmod if requested
1792AC_ARG_ENABLE(ipsecmod, AC_HELP_STRING([--enable-ipsecmod], [Enable ipsecmod module that facilitates opportunistic IPsec]))
1793case "$enable_ipsecmod" in
1794	yes)
1795		AC_DEFINE([USE_IPSECMOD], [1], [Define to 1 to use ipsecmod support.])
1796		IPSECMOD_OBJ="ipsecmod.lo ipsecmod-whitelist.lo"
1797		AC_SUBST(IPSECMOD_OBJ)
1798		IPSECMOD_HEADER='$(srcdir)/ipsecmod/ipsecmod.h $(srcdir)/ipsecmod/ipsecmod-whitelist.h'
1799		AC_SUBST(IPSECMOD_HEADER)
1800		;;
1801	no|*)
1802		# nothing
1803		;;
1804esac
1805
1806# check for ipset if requested
1807AC_ARG_ENABLE(ipset, AC_HELP_STRING([--enable-ipset], [enable ipset module]))
1808case "$enable_ipset" in
1809    yes)
1810		AC_DEFINE([USE_IPSET], [1], [Define to 1 to use ipset support])
1811		IPSET_SRC="ipset/ipset.c"
1812		AC_SUBST(IPSET_SRC)
1813		IPSET_OBJ="ipset.lo"
1814		AC_SUBST(IPSET_OBJ)
1815
1816		# mnl
1817		AC_ARG_WITH(libmnl, AC_HELP_STRING([--with-libmnl=path],
1818			[specify explicit path for libmnl.]),
1819			[ ],[ withval="yes" ])
1820		found_libmnl="no"
1821		AC_MSG_CHECKING(for libmnl)
1822		if test x_$withval = x_ -o x_$withval = x_yes; then
1823			withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1824		fi
1825		for dir in $withval ; do
1826			if test -f "$dir/include/libmnl/libmnl.h"; then
1827				found_libmnl="yes"
1828				dnl assume /usr is in default path.
1829				if test "$dir" != "/usr"; then
1830					CPPFLAGS="$CPPFLAGS -I$dir/include"
1831					LDFLAGS="$LDFLAGS -L$dir/lib"
1832				fi
1833				AC_MSG_RESULT(found in $dir)
1834				LIBS="$LIBS -lmnl"
1835				break;
1836			fi
1837		done
1838		if test x_$found_libmnl != x_yes; then
1839			AC_ERROR([Could not find libmnl, libmnl.h])
1840		fi
1841		;;
1842    no|*)
1843    	# nothing
1844		;;
1845esac
1846AC_ARG_ENABLE(explicit-port-randomisation, AC_HELP_STRING([--disable-explicit-port-randomisation], [disable explicit source port randomisation and rely on the kernel to provide random source ports]))
1847case "$enable_explicit_port_randomisation" in
1848	no)
1849		AC_DEFINE([DISABLE_EXPLICIT_PORT_RANDOMISATION], [1], [Define this to enable kernel based UDP source port randomization.])
1850		;;
1851	yes|*)
1852		;;
1853esac
1854
1855
1856AC_MSG_CHECKING([if ${MAKE:-make} supports $< with implicit rule in scope])
1857# on openBSD, the implicit rule make $< work.
1858# on Solaris, it does not work ($? is changed sources, $^ lists dependencies).
1859# gmake works.
1860cat >conftest.make <<EOF
1861all:	conftest.lo
1862
1863conftest.lo foo.lo bla.lo:
1864	if test -f "\$<"; then touch \$@; fi
1865
1866.SUFFIXES: .lo
1867.c.lo:
1868	if test -f "\$<"; then touch \$@; fi
1869
1870conftest.lo:        conftest.dir/conftest.c
1871EOF
1872mkdir conftest.dir
1873touch conftest.dir/conftest.c
1874rm -f conftest.lo conftest.c
1875${MAKE:-make} -f conftest.make >/dev/null
1876rm -f conftest.make conftest.c conftest.dir/conftest.c
1877rm -rf conftest.dir
1878if test ! -f conftest.lo; then
1879	AC_MSG_RESULT(no)
1880	SOURCEDETERMINE='echo "$^" | awk "-F " "{print \$$1;}" > .source'
1881	SOURCEFILE='`cat .source`'
1882else
1883	AC_MSG_RESULT(yes)
1884	SOURCEDETERMINE=':'
1885	SOURCEFILE='$<'
1886fi
1887rm -f conftest.lo
1888AC_SUBST(SOURCEDETERMINE)
1889AC_SUBST(SOURCEFILE)
1890
1891# see if we want to build the library or everything
1892ALLTARGET="alltargets"
1893INSTALLTARGET="install-all"
1894AC_ARG_WITH(libunbound-only, AC_HELP_STRING([--with-libunbound-only],
1895	[do not build daemon and tool programs]),
1896	[
1897	if test "$withval" = "yes"; then
1898		ALLTARGET="lib"
1899		INSTALLTARGET="install-lib"
1900	fi
1901])
1902if test $ALLTARGET = "alltargets"; then
1903	if test $USE_NSS = "yes"; then
1904		AC_ERROR([--with-nss can only be used in combination with --with-libunbound-only.])
1905	fi
1906	if test $USE_NETTLE = "yes"; then
1907		AC_ERROR([--with-nettle can only be used in combination with --with-libunbound-only.])
1908	fi
1909fi
1910
1911AC_SUBST(ALLTARGET)
1912AC_SUBST(INSTALLTARGET)
1913
1914ACX_STRIP_EXT_FLAGS
1915if test -n "$LATE_LDFLAGS"; then
1916  LDFLAGS="$LATE_LDFLAGS $LDFLAGS"
1917fi
1918# remove start spaces
1919LDFLAGS=`echo "$LDFLAGS"|sed -e 's/^ *//'`
1920LIBS=`echo "$LIBS"|sed -e 's/^ *//'`
1921
1922AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [10240], [Define to the maximum message length to pass to syslog.])
1923
1924AH_BOTTOM(
1925dnl this must be first AH_CONFIG, to define the flags before any includes.
1926AHX_CONFIG_EXT_FLAGS
1927
1928dnl includes
1929[
1930#ifndef _OPENBSD_SOURCE
1931#define _OPENBSD_SOURCE 1
1932#endif
1933
1934#ifndef UNBOUND_DEBUG
1935# ifndef NDEBUG
1936#  define NDEBUG
1937# endif
1938#endif
1939
1940/** Use small-ldns codebase */
1941#define USE_SLDNS 1
1942#ifdef HAVE_SSL
1943#  define LDNS_BUILD_CONFIG_HAVE_SSL 1
1944#endif
1945
1946#include <stdio.h>
1947#include <string.h>
1948#include <unistd.h>
1949#include <assert.h>
1950
1951#if STDC_HEADERS
1952#include <stdlib.h>
1953#include <stddef.h>
1954#endif
1955
1956#ifdef HAVE_STDARG_H
1957#include <stdarg.h>
1958#endif
1959
1960#ifdef HAVE_STDINT_H
1961#include <stdint.h>
1962#endif
1963
1964#include <errno.h>
1965
1966#if HAVE_SYS_PARAM_H
1967#include <sys/param.h>
1968#endif
1969
1970#ifdef HAVE_SYS_SOCKET_H
1971#include <sys/socket.h>
1972#endif
1973
1974#ifdef HAVE_SYS_UIO_H
1975#include <sys/uio.h>
1976#endif
1977
1978#ifdef HAVE_NETINET_IN_H
1979#include <netinet/in.h>
1980#endif
1981
1982#ifdef HAVE_NETINET_TCP_H
1983#include <netinet/tcp.h>
1984#endif
1985
1986#ifdef HAVE_ARPA_INET_H
1987#include <arpa/inet.h>
1988#endif
1989
1990#ifdef HAVE_WINSOCK2_H
1991#include <winsock2.h>
1992#endif
1993
1994#ifdef HAVE_WS2TCPIP_H
1995#include <ws2tcpip.h>
1996#endif
1997
1998#ifndef USE_WINSOCK
1999#define ARG_LL "%ll"
2000#else
2001#define ARG_LL "%I64"
2002#endif
2003
2004#ifndef AF_LOCAL
2005#define AF_LOCAL AF_UNIX
2006#endif
2007]
2008
2009AHX_CONFIG_FORMAT_ATTRIBUTE
2010AHX_CONFIG_UNUSED_ATTRIBUTE
2011AHX_CONFIG_FSEEKO
2012AHX_CONFIG_MAXHOSTNAMELEN
2013#if !defined(HAVE_SNPRINTF) || defined(SNPRINTF_RET_BROKEN)
2014#define snprintf snprintf_unbound
2015#define vsnprintf vsnprintf_unbound
2016#include <stdarg.h>
2017int snprintf (char *str, size_t count, const char *fmt, ...);
2018int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
2019#endif /* HAVE_SNPRINTF or SNPRINTF_RET_BROKEN */
2020AHX_CONFIG_INET_PTON(unbound)
2021AHX_CONFIG_INET_NTOP(unbound)
2022AHX_CONFIG_INET_ATON(unbound)
2023AHX_CONFIG_MEMMOVE(unbound)
2024AHX_CONFIG_STRLCAT(unbound)
2025AHX_CONFIG_STRLCPY(unbound)
2026AHX_CONFIG_GMTIME_R(unbound)
2027AHX_CONFIG_REALLOCARRAY(unbound)
2028AHX_CONFIG_W32_SLEEP
2029AHX_CONFIG_W32_USLEEP
2030AHX_CONFIG_W32_RANDOM
2031AHX_CONFIG_W32_SRANDOM
2032AHX_CONFIG_W32_FD_SET_T
2033AHX_CONFIG_IPV6_MIN_MTU
2034AHX_MEMCMP_BROKEN(unbound)
2035
2036[
2037#ifndef HAVE_CTIME_R
2038#define ctime_r unbound_ctime_r
2039char *ctime_r(const time_t *timep, char *buf);
2040#endif
2041
2042#ifndef HAVE_STRSEP
2043#define strsep unbound_strsep
2044char *strsep(char **stringp, const char *delim);
2045#endif
2046
2047#ifndef HAVE_ISBLANK
2048#define isblank unbound_isblank
2049int isblank(int c);
2050#endif
2051
2052#ifndef HAVE_EXPLICIT_BZERO
2053#define explicit_bzero unbound_explicit_bzero
2054void explicit_bzero(void* buf, size_t len);
2055#endif
2056
2057#if defined(HAVE_INET_NTOP) && !HAVE_DECL_INET_NTOP
2058const char *inet_ntop(int af, const void *src, char *dst, size_t size);
2059#endif
2060
2061#if defined(HAVE_INET_PTON) && !HAVE_DECL_INET_PTON
2062int inet_pton(int af, const char* src, void* dst);
2063#endif
2064
2065#if !defined(HAVE_STRPTIME) || !defined(STRPTIME_WORKS)
2066#define strptime unbound_strptime
2067struct tm;
2068char *strptime(const char *s, const char *format, struct tm *tm);
2069#endif
2070
2071#if !HAVE_DECL_REALLOCARRAY
2072void *reallocarray(void *ptr, size_t nmemb, size_t size);
2073#endif
2074
2075#ifdef HAVE_LIBBSD
2076#include <bsd/string.h>
2077#include <bsd/stdlib.h>
2078#endif
2079
2080#ifdef HAVE_LIBRESSL
2081#  if !HAVE_DECL_STRLCPY
2082size_t strlcpy(char *dst, const char *src, size_t siz);
2083#  endif
2084#  if !HAVE_DECL_STRLCAT
2085size_t strlcat(char *dst, const char *src, size_t siz);
2086#  endif
2087#  if !HAVE_DECL_ARC4RANDOM && defined(HAVE_ARC4RANDOM)
2088uint32_t arc4random(void);
2089#  endif
2090#  if !HAVE_DECL_ARC4RANDOM_UNIFORM && defined(HAVE_ARC4RANDOM_UNIFORM)
2091uint32_t arc4random_uniform(uint32_t upper_bound);
2092#  endif
2093#endif /* HAVE_LIBRESSL */
2094#ifndef HAVE_ARC4RANDOM
2095int getentropy(void* buf, size_t len);
2096uint32_t arc4random(void);
2097void arc4random_buf(void* buf, size_t n);
2098void _ARC4_LOCK(void);
2099void _ARC4_UNLOCK(void);
2100void _ARC4_LOCK_DESTROY(void);
2101#endif
2102#ifndef HAVE_ARC4RANDOM_UNIFORM
2103uint32_t arc4random_uniform(uint32_t upper_bound);
2104#endif
2105#ifdef COMPAT_SHA512
2106#ifndef SHA512_DIGEST_LENGTH
2107#define SHA512_BLOCK_LENGTH		128
2108#define SHA512_DIGEST_LENGTH		64
2109#define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
2110typedef struct _SHA512_CTX {
2111	uint64_t	state[8];
2112	uint64_t	bitcount[2];
2113	uint8_t	buffer[SHA512_BLOCK_LENGTH];
2114} SHA512_CTX;
2115#endif /* SHA512_DIGEST_LENGTH */
2116void SHA512_Init(SHA512_CTX*);
2117void SHA512_Update(SHA512_CTX*, void*, size_t);
2118void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
2119unsigned char *SHA512(void* data, unsigned int data_len, unsigned char *digest);
2120#endif /* COMPAT_SHA512 */
2121
2122
2123
2124#if defined(HAVE_EVENT_H) && !defined(HAVE_EVENT_BASE_ONCE) && !(defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)) && (defined(HAVE_PTHREAD) || defined(HAVE_SOLARIS_THREADS))
2125   /* using version of libevent that is not threadsafe. */
2126#  define LIBEVENT_SIGNAL_PROBLEM 1
2127#endif
2128
2129#ifndef CHECKED_INET6
2130#  define CHECKED_INET6
2131#  ifdef AF_INET6
2132#    define INET6
2133#  else
2134#    define AF_INET6        28
2135#  endif
2136#endif /* CHECKED_INET6 */
2137
2138#ifndef HAVE_GETADDRINFO
2139struct sockaddr_storage;
2140#include "compat/fake-rfc2553.h"
2141#endif
2142
2143#ifdef UNBOUND_ALLOC_STATS
2144#  define malloc(s) unbound_stat_malloc_log(s, __FILE__, __LINE__, __func__)
2145#  define calloc(n,s) unbound_stat_calloc_log(n, s, __FILE__, __LINE__, __func__)
2146#  define free(p) unbound_stat_free_log(p, __FILE__, __LINE__, __func__)
2147#  define realloc(p,s) unbound_stat_realloc_log(p, s, __FILE__, __LINE__, __func__)
2148void *unbound_stat_malloc(size_t size);
2149void *unbound_stat_calloc(size_t nmemb, size_t size);
2150void unbound_stat_free(void *ptr);
2151void *unbound_stat_realloc(void *ptr, size_t size);
2152void *unbound_stat_malloc_log(size_t size, const char* file, int line,
2153	const char* func);
2154void *unbound_stat_calloc_log(size_t nmemb, size_t size, const char* file,
2155	int line, const char* func);
2156void unbound_stat_free_log(void *ptr, const char* file, int line,
2157	const char* func);
2158void *unbound_stat_realloc_log(void *ptr, size_t size, const char* file,
2159	int line, const char* func);
2160#elif defined(UNBOUND_ALLOC_LITE)
2161#  include "util/alloc.h"
2162#endif /* UNBOUND_ALLOC_LITE and UNBOUND_ALLOC_STATS */
2163
2164/** default port for DNS traffic. */
2165#define UNBOUND_DNS_PORT 53
2166/** default port for DNS over TLS traffic. */
2167#define UNBOUND_DNS_OVER_TLS_PORT 853
2168/** default port for DNS over HTTPS traffic. */
2169#define UNBOUND_DNS_OVER_HTTPS_PORT 443
2170/** default port for unbound control traffic, registered port with IANA,
2171    ub-dns-control  8953/tcp    unbound dns nameserver control */
2172#define UNBOUND_CONTROL_PORT 8953
2173/** the version of unbound-control that this software implements */
2174#define UNBOUND_CONTROL_VERSION 1
2175
2176])
2177
2178dnl if we build from source tree, the man pages need @date@ and @version@
2179dnl if this is a distro tarball, that was already done by makedist.sh
2180AC_SUBST(version, [VERSION_MAJOR.VERSION_MINOR.VERSION_MICRO])
2181AC_SUBST(date, [`date +'%b %e, %Y'`])
2182
2183AC_CONFIG_FILES([Makefile doc/example.conf doc/libunbound.3 doc/unbound.8 doc/unbound-anchor.8 doc/unbound-checkconf.8 doc/unbound.conf.5 doc/unbound-control.8 doc/unbound-host.1 smallapp/unbound-control-setup.sh dnstap/dnstap_config.h dnscrypt/dnscrypt_config.h contrib/libunbound.pc contrib/unbound.socket contrib/unbound.service contrib/unbound_portable.service])
2184AC_CONFIG_HEADER([config.h])
2185AC_OUTPUT
2186