xref: /freebsd/contrib/unbound/configure.ac (revision 25ecdc7d52770caf1c9b44b5ec11f468f6b636f3)
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],[13])
14m4_define([VERSION_MICRO],[1])
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=12
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# 1.13.0 had 9:11:1
100# 1.13.1 had 9:12:1
101
102#   Current  -- the number of the binary API that we're implementing
103#   Revision -- which iteration of the implementation of the binary
104#               API are we supplying?
105#   Age      -- How many previous binary API versions do we also
106#               support?
107#
108# If we release a new version that does not change the binary API,
109# increment Revision.
110#
111# If we release a new version that changes the binary API, but does
112# not break programs compiled against the old binary API, increment
113# Current and Age.  Set Revision to 0, since this is the first
114# implementation of the new API.
115#
116# Otherwise, we're changing the binary API and breaking backward
117# compatibility with old binaries.  Increment Current.  Set Age to 0,
118# since we're backward compatible with no previous APIs.  Set Revision
119# to 0 too.
120AC_SUBST(LIBUNBOUND_CURRENT)
121AC_SUBST(LIBUNBOUND_REVISION)
122AC_SUBST(LIBUNBOUND_AGE)
123
124
125cmdln="`echo $@ | sed -e 's/\\\\/\\\\\\\\/g' | sed -e 's/"/\\\\"/'g`"
126AC_DEFINE_UNQUOTED(CONFCMDLINE, ["$cmdln"], [Command line arguments used with configure])
127
128CFLAGS="$CFLAGS"
129AC_USE_SYSTEM_EXTENSIONS
130if test "$ac_cv_header_minix_config_h" = "yes"; then
131	AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
132fi
133
134dnl
135dnl By default set prefix to /usr/local
136dnl
137case "$prefix" in
138        NONE)
139		prefix="/usr/local"
140        ;;
141esac
142case "$exec_prefix" in
143        NONE)
144		exec_prefix="$prefix"
145        ;;
146esac
147
148# are we on MinGW?
149if uname -s 2>&1 | grep MINGW32 >/dev/null; then on_mingw="yes"
150else
151	if echo $host $target | grep mingw32 >/dev/null; then on_mingw="yes"
152	else on_mingw="no"; fi
153fi
154
155#
156# Determine configuration file
157# the eval is to evaluate shell expansion twice
158UNBOUND_SBIN_DIR=`eval echo "${sbindir}"`
159AC_SUBST(UNBOUND_SBIN_DIR)
160UNBOUND_SYSCONF_DIR=`eval echo "${sysconfdir}"`
161AC_SUBST(UNBOUND_SYSCONF_DIR)
162UNBOUND_LOCALSTATE_DIR=`eval echo "${localstatedir}"`
163AC_SUBST(UNBOUND_LOCALSTATE_DIR)
164if test $on_mingw = "no"; then
165  ub_conf_file=`eval echo "${sysconfdir}/unbound/unbound.conf"`
166else
167  ub_conf_file="C:\\Program Files\\Unbound\\service.conf"
168fi
169AC_ARG_WITH([conf_file],
170        AS_HELP_STRING([--with-conf-file=path],[Pathname to the Unbound configuration file]),
171	[ub_conf_file="$withval"])
172AC_SUBST(ub_conf_file)
173ACX_ESCAPE_BACKSLASH($ub_conf_file, hdr_config)
174AC_DEFINE_UNQUOTED(CONFIGFILE, ["$hdr_config"], [Pathname to the Unbound configuration file])
175ub_conf_dir=`AS_DIRNAME(["$ub_conf_file"])`
176AC_SUBST(ub_conf_dir)
177
178# Determine run, chroot directory and pidfile locations
179AC_ARG_WITH(run-dir,
180    AS_HELP_STRING([--with-run-dir=path],[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    AS_HELP_STRING([--with-chroot-dir=path],[set default directory to chroot to (by default same as run-dir)]),
194    UNBOUND_CHROOT_DIR="$withval",
195if test $on_mingw = no; then
196    UNBOUND_CHROOT_DIR="$UNBOUND_RUN_DIR"
197else
198    UNBOUND_CHROOT_DIR=""
199fi
200)
201AC_SUBST(UNBOUND_CHROOT_DIR)
202ACX_ESCAPE_BACKSLASH($UNBOUND_CHROOT_DIR, hdr_chroot)
203AC_DEFINE_UNQUOTED(CHROOT_DIR, ["$hdr_chroot"], [Directory to chroot to])
204
205AC_ARG_WITH(share-dir,
206    AS_HELP_STRING([--with-share-dir=path],[set default directory with shared data (by default same as share/unbound)]),
207    UNBOUND_SHARE_DIR="$withval",
208    UNBOUND_SHARE_DIR="$UNBOUND_RUN_DIR")
209AC_SUBST(UNBOUND_SHARE_DIR)
210AC_DEFINE_UNQUOTED(SHARE_DIR, ["$UNBOUND_SHARE_DIR"], [Shared data])
211
212AC_ARG_WITH(pidfile,
213    AS_HELP_STRING([--with-pidfile=filename],[set default pathname to unbound pidfile (default run-dir/unbound.pid)]),
214    UNBOUND_PIDFILE="$withval",
215if test $on_mingw = no; then
216    UNBOUND_PIDFILE="$UNBOUND_RUN_DIR/unbound.pid"
217else
218    UNBOUND_PIDFILE=""
219fi
220)
221AC_SUBST(UNBOUND_PIDFILE)
222ACX_ESCAPE_BACKSLASH($UNBOUND_PIDFILE, hdr_pid)
223AC_DEFINE_UNQUOTED(PIDFILE, ["$hdr_pid"], [default pidfile location])
224
225AC_ARG_WITH(rootkey-file,
226    AS_HELP_STRING([--with-rootkey-file=filename],[set default pathname to root key file (default run-dir/root.key). This file is read and written.]),
227    UNBOUND_ROOTKEY_FILE="$withval",
228if test $on_mingw = no; then
229    UNBOUND_ROOTKEY_FILE="$UNBOUND_RUN_DIR/root.key"
230else
231    UNBOUND_ROOTKEY_FILE="C:\\Program Files\\Unbound\\root.key"
232fi
233)
234AC_SUBST(UNBOUND_ROOTKEY_FILE)
235ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTKEY_FILE, hdr_rkey)
236AC_DEFINE_UNQUOTED(ROOT_ANCHOR_FILE, ["$hdr_rkey"], [default rootkey location])
237
238AC_ARG_WITH(rootcert-file,
239    AS_HELP_STRING([--with-rootcert-file=filename],[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.]),
240    UNBOUND_ROOTCERT_FILE="$withval",
241if test $on_mingw = no; then
242    UNBOUND_ROOTCERT_FILE="$UNBOUND_RUN_DIR/icannbundle.pem"
243else
244    UNBOUND_ROOTCERT_FILE="C:\\Program Files\\Unbound\\icannbundle.pem"
245fi
246)
247AC_SUBST(UNBOUND_ROOTCERT_FILE)
248ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTCERT_FILE, hdr_rpem)
249AC_DEFINE_UNQUOTED(ROOT_CERT_FILE, ["$hdr_rpem"], [default rootcert location])
250
251AC_ARG_WITH(username,
252    AS_HELP_STRING([--with-username=user],[set default user that unbound changes to (default user is unbound)]),
253    UNBOUND_USERNAME="$withval",
254    UNBOUND_USERNAME="unbound")
255AC_SUBST(UNBOUND_USERNAME)
256AC_DEFINE_UNQUOTED(UB_USERNAME, ["$UNBOUND_USERNAME"], [default username])
257
258AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])
259ACX_RSRC_VERSION(wnvs)
260AC_DEFINE_UNQUOTED(RSRC_PACKAGE_VERSION, [$wnvs], [version number for resource files])
261
262# Checks for typedefs, structures, and compiler characteristics.
263AC_C_CONST
264AC_LANG([C])
265# allow user to override the -g -O2 flags.
266default_cflags=no
267if test "x$CFLAGS" = "x" ; then
268ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
269ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
270default_cflags=yes
271fi
272AC_PROG_CC
273ACX_DEPFLAG
274ACX_DETERMINE_EXT_FLAGS_UNBOUND
275
276# debug mode flags warnings
277AC_ARG_ENABLE(checking, AS_HELP_STRING([--enable-checking],[Enable warnings, asserts, makefile-dependencies]))
278AC_ARG_ENABLE(debug, AS_HELP_STRING([--enable-debug],[same as enable-checking]))
279if test "$enable_debug" = "yes"; then debug_enabled="$enable_debug";
280else debug_enabled="$enable_checking"; fi
281AC_SUBST(debug_enabled)
282case "$debug_enabled" in
283        yes)
284		ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="$CFLAGS -W"])
285		ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="$CFLAGS -Wall"])
286		ACX_CHECK_COMPILER_FLAG(Wextra, [CFLAGS="$CFLAGS -Wextra"])
287		ACX_CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
288		AC_DEFINE([UNBOUND_DEBUG], [], [define this to enable debug checks.])
289		;;
290	no|*)
291		# nothing to do.
292		;;
293esac
294if test "$default_cflags" = "yes"; then
295	# only when CFLAGS was "" at the start, if the users wants to
296	# override we shouldn't add default cflags, because they wouldn't
297	# be able to turn off these options and set the CFLAGS wanted.
298	ACX_CHECK_FLTO
299	ACX_CHECK_PIE
300	ACX_CHECK_RELRO_NOW
301fi
302
303AC_C_INLINE
304ACX_CHECK_FORMAT_ATTRIBUTE
305ACX_CHECK_UNUSED_ATTRIBUTE
306
307AC_DEFUN([CHECK_WEAK_ATTRIBUTE],
308[AC_REQUIRE([AC_PROG_CC])
309AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "weak" attribute)
310AC_CACHE_VAL(ac_cv_c_weak_attribute,
311[ac_cv_c_weak_attribute=no
312AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h>
313__attribute__((weak)) void f(int x) { printf("%d", x); }
314]], [[
315   f(1);
316]])],[ac_cv_c_weak_attribute="yes"],[ac_cv_c_weak_attribute="no"])
317])
318
319AC_MSG_RESULT($ac_cv_c_weak_attribute)
320if test $ac_cv_c_weak_attribute = yes; then
321  AC_DEFINE(HAVE_ATTR_WEAK, 1, [Whether the C compiler accepts the "weak" attribute])
322  AC_DEFINE(ATTR_WEAK, [__attribute__((weak))], [apply the weak attribute to a symbol])
323fi
324])dnl End of CHECK_WEAK_ATTRIBUTE
325
326CHECK_WEAK_ATTRIBUTE
327
328AC_DEFUN([CHECK_NORETURN_ATTRIBUTE],
329[AC_REQUIRE([AC_PROG_CC])
330AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "noreturn" attribute)
331AC_CACHE_VAL(ac_cv_c_noreturn_attribute,
332[ac_cv_c_noreturn_attribute=no
333AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h>
334__attribute__((noreturn)) void f(int x) { printf("%d", x); }
335]], [[
336   f(1);
337]])],[ac_cv_c_noreturn_attribute="yes"],[ac_cv_c_noreturn_attribute="no"])
338])
339
340AC_MSG_RESULT($ac_cv_c_noreturn_attribute)
341if test $ac_cv_c_noreturn_attribute = yes; then
342  AC_DEFINE(HAVE_ATTR_NORETURN, 1, [Whether the C compiler accepts the "noreturn" attribute])
343  AC_DEFINE(ATTR_NORETURN, [__attribute__((__noreturn__))], [apply the noreturn attribute to a function that exits the program])
344fi
345])dnl End of CHECK_NORETURN_ATTRIBUTE
346
347CHECK_NORETURN_ATTRIBUTE
348
349if test "$srcdir" != "."; then
350	CPPFLAGS="$CPPFLAGS -I$srcdir"
351fi
352
353AC_DEFUN([ACX_YYLEX_DESTROY], [
354	AC_MSG_CHECKING([for yylex_destroy])
355	if echo %% | $LEX -t 2>&1 | grep yylex_destroy >/dev/null 2>&1; then
356		AC_DEFINE(LEX_HAS_YYLEX_DESTROY, 1, [if lex has yylex_destroy])
357		AC_MSG_RESULT(yes)
358	else AC_MSG_RESULT(no);
359		LEX=":"
360	fi
361])
362
363AC_DEFUN([ACX_YYLEX_OPTION], [
364	AC_MSG_CHECKING([for lex %option])
365	if cat <<EOF | $LEX -t 2>&1 | grep yy_delete_buffer >/dev/null 2>&1; then
366%option nounput
367%%
368EOF
369		AC_MSG_RESULT(yes)
370	else AC_MSG_RESULT(no);
371		LEX=":"
372	fi
373])
374
375AC_PROG_LEX([noyywrap])
376if test "$LEX" != "" -a "$LEX" != ":"; then
377ACX_YYLEX_DESTROY
378fi
379if test "$LEX" != "" -a "$LEX" != ":"; then
380ACX_YYLEX_OPTION
381fi
382AC_PROG_YACC
383AC_CHECK_PROG(doxygen, doxygen, doxygen)
384AC_CHECK_TOOL(STRIP, strip)
385ACX_LIBTOOL_C_ONLY
386
387PKG_PROG_PKG_CONFIG
388
389# Checks for header files.
390AC_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],,, [AC_INCLUDES_DEFAULT])
391# net/if.h portability for Darwin see:
392# https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Header-Portability.html
393AC_CHECK_HEADERS([net/if.h],,, [
394#include <stdio.h>
395#ifdef STDC_HEADERS
396# include <stdlib.h>
397# include <stddef.h>
398#else
399# ifdef HAVE_STDLIB_H
400#  include <stdlib.h>
401# endif
402#endif
403#ifdef HAVE_SYS_SOCKET_H
404# include <sys/socket.h>
405#endif
406])
407
408# Check for Apple header. This uncovers TARGET_OS_IPHONE, TARGET_OS_TV or TARGET_OS_WATCH
409AC_CHECK_HEADERS([TargetConditionals.h])
410
411# check for types.
412# Using own tests for int64* because autoconf builtin only give 32bit.
413AC_CHECK_TYPE(int8_t, signed char)
414AC_CHECK_TYPE(int16_t, short)
415AC_CHECK_TYPE(int32_t, int)
416AC_CHECK_TYPE(int64_t, long long)
417AC_CHECK_TYPE(uint8_t, unsigned char)
418AC_CHECK_TYPE(uint16_t, unsigned short)
419AC_CHECK_TYPE(uint32_t, unsigned int)
420AC_CHECK_TYPE(uint64_t, unsigned long long)
421AC_TYPE_SIZE_T
422AC_CHECK_TYPE(ssize_t, int)
423AC_TYPE_UID_T
424AC_TYPE_PID_T
425AC_TYPE_OFF_T
426ACX_TYPE_U_CHAR
427ACX_TYPE_RLIM_T
428ACX_TYPE_SOCKLEN_T
429ACX_TYPE_IN_ADDR_T
430ACX_TYPE_IN_PORT_T
431ACX_CHECK_MEMCMP_SIGNED
432
433AC_CHECK_SIZEOF(time_t,,[
434AC_INCLUDES_DEFAULT
435#ifdef TIME_WITH_SYS_TIME
436# include <sys/time.h>
437# include <time.h>
438#else
439# ifdef HAVE_SYS_TIME_H
440#  include <sys/time.h>
441# else
442#  include <time.h>
443# endif
444#endif
445])
446AC_CHECK_SIZEOF(size_t)
447
448# add option to disable the evil rpath
449ACX_ARG_RPATH
450AC_SUBST(RUNTIME_PATH)
451
452# check to see if libraries are needed for these functions.
453AC_SEARCH_LIBS([inet_pton], [nsl])
454AC_SEARCH_LIBS([socket], [socket])
455
456# check wether strptime also works
457AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
458[AC_REQUIRE([AC_PROG_CC])
459AC_MSG_CHECKING(whether strptime works)
460if test c${cross_compiling} = cno; then
461AC_RUN_IFELSE([AC_LANG_SOURCE([[
462#define _XOPEN_SOURCE 600
463#include <time.h>
464int main(void) { struct tm tm; char *res;
465res = 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);
466if (!res) return 2;
467res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
468if (!res) return 1; return 0; }
469]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
470else
471eval "ac_cv_c_strptime_works=maybe"
472fi
473AC_MSG_RESULT($ac_cv_c_strptime_works)
474if test $ac_cv_c_strptime_works = no; then
475AC_LIBOBJ(strptime)
476else
477AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
478fi
479])dnl
480
481# check some functions of the OS before linking libs (while still runnable).
482AC_FUNC_CHOWN
483AC_FUNC_FORK
484AC_DEFINE(RETSIGTYPE,void,[Return type of signal handlers, but autoconf 2.70 says 'your code may safely assume C89 semantics that RETSIGTYPE is void.'])
485AC_FUNC_FSEEKO
486ACX_SYS_LARGEFILE
487ACX_CHECK_NONBLOCKING_BROKEN
488ACX_MKDIR_ONE_ARG
489AC_CHECK_FUNCS([strptime],[AC_CHECK_STRPTIME_WORKS],[AC_LIBOBJ([strptime])])
490
491# check if we can use SO_REUSEPORT
492if echo "$host" | $GREP -i -e linux -e dragonfly >/dev/null; then
493	AC_DEFINE(REUSEPORT_DEFAULT, 1, [if REUSEPORT is enabled by default])
494else
495	AC_DEFINE(REUSEPORT_DEFAULT, 0, [if REUSEPORT is enabled by default])
496fi
497
498# Include systemd.m4 - begin
499sinclude(systemd.m4)
500# Include systemd.m4 - end
501
502# set memory allocation checking if requested
503AC_ARG_ENABLE(alloc-checks, AS_HELP_STRING([--enable-alloc-checks],[ enable to memory allocation statistics, for debug purposes ]),
504	, )
505AC_ARG_ENABLE(alloc-lite, AS_HELP_STRING([--enable-alloc-lite],[ enable for lightweight alloc assertions, for debug purposes ]),
506	, )
507AC_ARG_ENABLE(alloc-nonregional, AS_HELP_STRING([--enable-alloc-nonregional],[ enable nonregional allocs, slow but exposes regional allocations to other memory purifiers, for debug purposes ]),
508	, )
509if test x_$enable_alloc_nonregional = x_yes; then
510	AC_DEFINE(UNBOUND_ALLOC_NONREGIONAL, 1, [use malloc not regions, for debug use])
511fi
512if test x_$enable_alloc_checks = x_yes; then
513	AC_DEFINE(UNBOUND_ALLOC_STATS, 1, [use statistics for allocs and frees, for debug use])
514	SLDNS_ALLOCCHECK_EXTRA_OBJ="alloc.lo log.lo"
515	AC_SUBST(SLDNS_ALLOCCHECK_EXTRA_OBJ)
516	ASYNCLOOK_ALLOCCHECK_EXTRA_OBJ="alloc.lo"
517	AC_SUBST(ASYNCLOOK_ALLOCCHECK_EXTRA_OBJ)
518else
519	if test x_$enable_alloc_lite = x_yes; then
520		AC_DEFINE(UNBOUND_ALLOC_LITE, 1, [use to enable lightweight alloc assertions, for debug use])
521	else
522		ACX_FUNC_MALLOC([unbound])
523	fi
524fi
525
526# check windows threads (we use them, not pthreads, on windows).
527if test "$on_mingw" = "yes"; then
528# check windows threads
529	AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
530	AC_MSG_CHECKING([for CreateThread])
531	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
532#ifdef HAVE_WINDOWS_H
533#include <windows.h>
534#endif
535], [
536	HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
537])],
538	AC_MSG_RESULT(yes)
539	AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
540,
541	AC_MSG_RESULT(no)
542)
543
544else
545# not on mingw, check thread libraries.
546
547# check for thread library.
548# check this first, so that the pthread lib does not get linked in via
549# libssl or libpython, and thus distorts the tests, and we end up using
550# the non-threadsafe C libraries.
551AC_ARG_WITH(pthreads, AS_HELP_STRING([--with-pthreads],[use pthreads library, or --without-pthreads to disable threading support.]),
552 [ ],[ withval="yes" ])
553ub_have_pthreads=no
554if test x_$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, AS_HELP_STRING([--with-solaris-threads],[use solaris native thread library.]), [ ],[ withval="no" ])
599ub_have_sol_threads=no
600if test x_$withval != x_no; then
601	if test x_$ub_have_pthreads != x_no; then
602	    AC_MSG_WARN([Have pthreads already, ignoring --with-solaris-threads])
603	else
604	AC_SEARCH_LIBS(thr_create, [thread],
605	[
606    		AC_DEFINE(HAVE_SOLARIS_THREADS, 1, [Using Solaris threads])
607
608		ACX_CHECK_COMPILER_FLAG(mt, [CFLAGS="$CFLAGS -mt"],
609			[CFLAGS="$CFLAGS -D_REENTRANT"])
610		ub_have_sol_threads=yes
611	] , [
612		AC_MSG_ERROR([no solaris threads found.])
613	])
614	fi
615fi
616
617fi # end of non-mingw check of thread libraries
618
619# Check for SYSLOG_FACILITY
620AC_ARG_WITH(syslog-facility, AS_HELP_STRING([--with-syslog-facility=LOCAL0 - LOCAL7],[ set SYSLOG_FACILITY, default DAEMON ]),
621	[ UNBOUND_SYSLOG_FACILITY="$withval" ], [])
622case "${UNBOUND_SYSLOG_FACILITY}" in
623
624  LOCAL[[0-7]]) UNBOUND_SYSLOG_FACILITY="LOG_${UNBOUND_SYSLOG_FACILITY}" ;;
625
626           *) UNBOUND_SYSLOG_FACILITY="LOG_DAEMON" ;;
627
628esac
629AC_DEFINE_UNQUOTED(UB_SYSLOG_FACILITY,${UNBOUND_SYSLOG_FACILITY},[the SYSLOG_FACILITY to use, default LOG_DAEMON])
630
631# Check for dynamic library module
632AC_ARG_WITH(dynlibmodule,
633   AS_HELP_STRING([--with-dynlibmodule],[build dynamic library module, or --without-dynlibmodule to disable it. (default=no)]),
634   [], [ withval="no" ])
635
636if test x_$withval != x_no; then
637  AC_DEFINE(WITH_DYNLIBMODULE, 1, [Define if you want dynlib module.])
638  WITH_DYNLIBMODULE=yes
639  AC_SUBST(WITH_DYNLIBMODULE)
640  DYNLIBMOD_OBJ="dynlibmod.lo"
641  AC_SUBST(DYNLIBMOD_OBJ)
642  DYNLIBMOD_HEADER='$(srcdir)/dynlibmod/dynlibmod.h'
643  AC_SUBST(DYNLIBMOD_HEADER)
644  if test $on_mingw = "no"; then
645    # link with -ldl if not already there, for all executables because
646    # dlopen call is in the dynlib module.  For unbound executable, also
647    # export symbols.
648    AC_SEARCH_LIBS([dlopen], [dl])
649    DYNLIBMOD_EXTRALIBS="-export-dynamic"
650  else
651    DYNLIBMOD_EXTRALIBS="-Wl,--export-all-symbols,--out-implib,libunbound.dll.a"
652  fi
653  AC_SUBST(DYNLIBMOD_EXTRALIBS)
654fi
655
656# Check for PyUnbound
657AC_ARG_WITH(pyunbound,
658   AS_HELP_STRING([--with-pyunbound],[build PyUnbound, or --without-pyunbound to skip it. (default=no)]),
659   [], [ withval="no" ])
660
661ub_test_python=no
662ub_with_pyunbound=no
663if test x_$withval != x_no; then
664   ub_with_pyunbound=yes
665   ub_test_python=yes
666fi
667
668# Check for Python module
669AC_ARG_WITH(pythonmodule,
670   AS_HELP_STRING([--with-pythonmodule],[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_MSG_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, AS_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_MSG_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], AS_HELP_STRING([--with-nss=path],[use libnss instead of openssl, installed at path.]),
780	[
781	USE_NSS="yes"
782	AC_DEFINE(HAVE_NSS, 1, [Use libnss for crypto])
783	if test "$withval" != "" -a "$withval" != "yes"; then
784		CPPFLAGS="$CPPFLAGS -I$withval/include/nss3"
785		LDFLAGS="$LDFLAGS -L$withval/lib"
786		ACX_RUNTIME_PATH_ADD([$withval/lib])
787		CPPFLAGS="-I$withval/include/nspr4 $CPPFLAGS"
788	else
789		CPPFLAGS="$CPPFLAGS -I/usr/include/nss3"
790		CPPFLAGS="-I/usr/include/nspr4 $CPPFLAGS"
791	fi
792        LIBS="$LIBS -lnss3 -lnspr4"
793	SSLLIB=""
794	PC_CRYPTO_DEPENDENCY="nss nspr"
795	AC_SUBST(PC_CRYPTO_DEPENDENCY)
796	]
797)
798
799# libnettle
800USE_NETTLE="no"
801AC_ARG_WITH([nettle], AS_HELP_STRING([--with-nettle=path],[use libnettle as crypto library, installed at path.]),
802	[
803	USE_NETTLE="yes"
804	AC_DEFINE(HAVE_NETTLE, 1, [Use libnettle for crypto])
805	AC_CHECK_HEADERS([nettle/dsa-compat.h],,, [AC_INCLUDES_DEFAULT])
806	if test "$withval" != "" -a "$withval" != "yes"; then
807		CPPFLAGS="$CPPFLAGS -I$withval/include/nettle"
808		LDFLAGS="$LDFLAGS -L$withval/lib"
809		ACX_RUNTIME_PATH_ADD([$withval/lib])
810	else
811		CPPFLAGS="$CPPFLAGS -I/usr/include/nettle"
812	fi
813        LIBS="$LIBS -lhogweed -lnettle -lgmp"
814	SSLLIB=""
815	PC_CRYPTO_DEPENDENCY="hogweed nettle"
816	AC_SUBST(PC_CRYPTO_DEPENDENCY)
817	]
818)
819
820# openssl
821if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
822ACX_WITH_SSL
823ACX_LIB_SSL
824SSLLIB="-lssl"
825
826PC_CRYPTO_DEPENDENCY="libcrypto libssl"
827AC_SUBST(PC_CRYPTO_DEPENDENCY)
828
829# check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
830BAKLIBS="$LIBS"
831LIBS="-lssl $LIBS"
832AC_MSG_CHECKING([if libssl needs -lcrypt32])
833AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[
834	int EVP_sha256(void);
835	(void)EVP_sha256();
836]])], [
837	AC_MSG_RESULT([no])
838	LIBS="$BAKLIBS"
839], [
840	AC_MSG_RESULT([yes])
841	LIBS="$BAKLIBS"
842	LIBS="$LIBS -lcrypt32"
843])
844
845AC_MSG_CHECKING([for LibreSSL])
846if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
847	AC_MSG_RESULT([yes])
848	AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
849	# libressl provides these compat functions, but they may also be
850	# declared by the OS in libc.  See if they have been declared.
851	AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform])
852else
853	AC_MSG_RESULT([no])
854fi
855AC_CHECK_HEADERS([openssl/conf.h openssl/engine.h openssl/bn.h openssl/dh.h openssl/dsa.h openssl/rsa.h openssl/core_names.h],,, [AC_INCLUDES_DEFAULT])
856AC_CHECK_FUNCS([OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512 FIPS_mode EVP_MD_CTX_new OpenSSL_add_all_digests OPENSSL_init_crypto EVP_cleanup ENGINE_cleanup ERR_load_crypto_strings CRYPTO_cleanup_all_ex_data ERR_free_strings RAND_cleanup DSA_SIG_set0 EVP_dss1 EVP_DigestVerify EVP_aes_256_cbc EVP_EncryptInit_ex HMAC_Init_ex CRYPTO_THREADID_set_callback EVP_MAC_CTX_set_params])
857
858# these check_funcs need -lssl
859BAKLIBS="$LIBS"
860LIBS="-lssl $LIBS"
861AC_CHECK_FUNCS([OPENSSL_init_ssl SSL_CTX_set_security_level SSL_set1_host SSL_get0_peername X509_VERIFY_PARAM_set1_host SSL_CTX_set_ciphersuites SSL_CTX_set_tlsext_ticket_key_evp_cb SSL_CTX_set_alpn_select_cb])
862LIBS="$BAKLIBS"
863
864AC_CHECK_DECLS([SSL_COMP_get_compression_methods,sk_SSL_COMP_pop_free,SSL_CTX_set_ecdh_auto], [], [], [
865AC_INCLUDES_DEFAULT
866#ifdef HAVE_OPENSSL_ERR_H
867#include <openssl/err.h>
868#endif
869
870#ifdef HAVE_OPENSSL_RAND_H
871#include <openssl/rand.h>
872#endif
873
874#ifdef HAVE_OPENSSL_CONF_H
875#include <openssl/conf.h>
876#endif
877
878#ifdef HAVE_OPENSSL_ENGINE_H
879#include <openssl/engine.h>
880#endif
881#include <openssl/ssl.h>
882#include <openssl/evp.h>
883])
884
885if test "$ac_cv_func_HMAC_Init_ex" = "yes"; then
886# check function return type.
887AC_MSG_CHECKING(the return type of HMAC_Init_ex)
888AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
889#ifdef HAVE_OPENSSL_ERR_H
890#include <openssl/err.h>
891#endif
892
893#ifdef HAVE_OPENSSL_RAND_H
894#include <openssl/rand.h>
895#endif
896
897#ifdef HAVE_OPENSSL_CONF_H
898#include <openssl/conf.h>
899#endif
900
901#ifdef HAVE_OPENSSL_ENGINE_H
902#include <openssl/engine.h>
903#endif
904#include <openssl/ssl.h>
905#include <openssl/evp.h>
906], [
907	HMAC_CTX* hmac_ctx = NULL;
908	void* hmac_key = NULL;
909	const EVP_MD* digest = NULL;
910	int x = HMAC_Init_ex(hmac_ctx, hmac_key, 32, digest, NULL);
911	(void)x;
912])], [
913	AC_MSG_RESULT(int)
914], [
915	AC_MSG_RESULT(void)
916	AC_DEFINE([HMAC_INIT_EX_RETURNS_VOID], 1, [If HMAC_Init_ex() returns void])
917])
918fi
919
920fi
921AC_SUBST(SSLLIB)
922
923# libbsd
924AC_ARG_WITH([libbsd], AS_HELP_STRING([--with-libbsd],[Use portable libbsd functions]), [
925	AC_CHECK_HEADERS([bsd/string.h bsd/stdlib.h],,, [AC_INCLUDES_DEFAULT])
926	if test "x$ac_cv_header_bsd_string_h" = xyes -a "x$ac_cv_header_bsd_stdlib_h" = xyes; then
927		for func in strlcpy strlcat arc4random arc4random_uniform reallocarray; do
928			AC_SEARCH_LIBS([$func], [bsd], [
929				AC_DEFINE(HAVE_LIBBSD, 1, [Use portable libbsd functions])
930				PC_LIBBSD_DEPENDENCY=libbsd
931				AC_SUBST(PC_LIBBSD_DEPENDENCY)
932			])
933		done
934	fi
935])
936
937AC_ARG_ENABLE(sha1, AS_HELP_STRING([--disable-sha1],[Disable SHA1 RRSIG support, does not disable nsec3 support]))
938case "$enable_sha1" in
939	no)
940	;;
941	yes|*)
942	AC_DEFINE([USE_SHA1], [1], [Define this to enable SHA1 support.])
943	;;
944esac
945
946
947AC_ARG_ENABLE(sha2, AS_HELP_STRING([--disable-sha2],[Disable SHA256 and SHA512 RRSIG support]))
948case "$enable_sha2" in
949	no)
950	;;
951	yes|*)
952	AC_DEFINE([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
953	;;
954esac
955
956AC_ARG_ENABLE(subnet, AS_HELP_STRING([--enable-subnet],[Enable client subnet]))
957case "$enable_subnet" in
958	yes)
959	AC_DEFINE([CLIENT_SUBNET], [1], [Define this to enable client subnet option.])
960	SUBNET_OBJ="edns-subnet.lo subnetmod.lo addrtree.lo subnet-whitelist.lo"
961	AC_SUBST(SUBNET_OBJ)
962	SUBNET_HEADER='$(srcdir)/edns-subnet/subnetmod.h $(srcdir)/edns-subnet/edns-subnet.h $(srcdir)/edns-subnet/subnet-whitelist.h $(srcdir)/edns-subnet/addrtree.h'
963	AC_SUBST(SUBNET_HEADER)
964	;;
965	no|*)
966	;;
967esac
968
969# check wether gost also works
970AC_DEFUN([AC_CHECK_GOST_WORKS],
971[AC_REQUIRE([AC_PROG_CC])
972AC_MSG_CHECKING([if GOST works])
973if test c${cross_compiling} = cno; then
974BAKCFLAGS="$CFLAGS"
975if test -n "$ssldir"; then
976	CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
977fi
978AC_RUN_IFELSE([AC_LANG_SOURCE([[
979#include <string.h>
980#include <openssl/ssl.h>
981#include <openssl/evp.h>
982#include <openssl/engine.h>
983#include <openssl/conf.h>
984/* routine to load gost (from sldns) */
985int load_gost_id(void)
986{
987	static int gost_id = 0;
988	const EVP_PKEY_ASN1_METHOD* meth;
989	ENGINE* e;
990
991	if(gost_id) return gost_id;
992
993	/* see if configuration loaded gost implementation from other engine*/
994	meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
995	if(meth) {
996		EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
997		return gost_id;
998	}
999
1000	/* see if engine can be loaded already */
1001	e = ENGINE_by_id("gost");
1002	if(!e) {
1003		/* load it ourself, in case statically linked */
1004		ENGINE_load_builtin_engines();
1005		ENGINE_load_dynamic();
1006		e = ENGINE_by_id("gost");
1007	}
1008	if(!e) {
1009		/* no gost engine in openssl */
1010		return 0;
1011	}
1012	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1013		ENGINE_finish(e);
1014		ENGINE_free(e);
1015		return 0;
1016	}
1017
1018	meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
1019	if(!meth) {
1020		/* algo not found */
1021		ENGINE_finish(e);
1022		ENGINE_free(e);
1023		return 0;
1024	}
1025	EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
1026	return gost_id;
1027}
1028int main(void) {
1029	EVP_MD_CTX* ctx;
1030	const EVP_MD* md;
1031	unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
1032	const char* str = "Hello world";
1033	const unsigned char check[] = {
1034		0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
1035		0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
1036		0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
1037		0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
1038	};
1039	OPENSSL_config(NULL);
1040	(void)load_gost_id();
1041	md = EVP_get_digestbyname("md_gost94");
1042	if(!md) return 1;
1043	memset(digest, 0, sizeof(digest));
1044	ctx = EVP_MD_CTX_create();
1045	if(!ctx) return 2;
1046	if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
1047	if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
1048	if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
1049	/* uncomment to see the hash calculated.
1050		{int i;
1051		for(i=0; i<32; i++)
1052			printf(" %2.2x", (int)digest[i]);
1053		printf("\n");}
1054	*/
1055	if(memcmp(digest, check, sizeof(check)) != 0)
1056		return 6;
1057	return 0;
1058}
1059]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
1060CFLAGS="$BAKCFLAGS"
1061else
1062eval "ac_cv_c_gost_works=maybe"
1063fi
1064AC_MSG_RESULT($ac_cv_c_gost_works)
1065])dnl
1066
1067AC_ARG_ENABLE(gost, AS_HELP_STRING([--disable-gost],[Disable GOST support]))
1068use_gost="no"
1069if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1070case "$enable_gost" in
1071	no)
1072	;;
1073	*)
1074	AC_CHECK_FUNC(EVP_PKEY_set_type_str, [:],[AC_MSG_ERROR([OpenSSL 1.0.0 is needed for GOST support])])
1075	AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([OpenSSL does not support ECC, needed for GOST support])])
1076	AC_CHECK_GOST_WORKS
1077	if test "$ac_cv_c_gost_works" != no; then
1078		use_gost="yes"
1079		AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
1080	fi
1081	;;
1082esac
1083fi dnl !USE_NSS && !USE_NETTLE
1084
1085AC_ARG_ENABLE(ecdsa, AS_HELP_STRING([--disable-ecdsa],[Disable ECDSA support]))
1086use_ecdsa="no"
1087case "$enable_ecdsa" in
1088    no)
1089      ;;
1090    *)
1091      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1092	      AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade or rerun with --disable-ecdsa])])
1093	      AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade or rerun with --disable-ecdsa])])
1094	      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
1095#include <openssl/evp.h>
1096	      ])
1097	      # see if OPENSSL 1.0.0 or later (has EVP MD and Verify independency)
1098	      AC_MSG_CHECKING([if openssl supports SHA2 and ECDSA with EVP])
1099	      if grep OPENSSL_VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "OpenSSL" >/dev/null; then
1100		if grep OPENSSL_VERSION_NUMBER $ssldir/include/openssl/opensslv.h | grep 0x0 >/dev/null; then
1101		  AC_MSG_RESULT([no])
1102		  AC_DEFINE_UNQUOTED([USE_ECDSA_EVP_WORKAROUND], [1], [Define this to enable an EVP workaround for older openssl])
1103		else
1104		  AC_MSG_RESULT([yes])
1105		fi
1106	      else
1107		# not OpenSSL, thus likely LibreSSL, which supports it
1108		AC_MSG_RESULT([yes])
1109	      fi
1110      fi
1111      # we now know we have ECDSA and the required curves.
1112      AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
1113      use_ecdsa="yes"
1114      ;;
1115esac
1116
1117AC_ARG_ENABLE(dsa, AS_HELP_STRING([--disable-dsa],[Disable DSA support]))
1118use_dsa="no"
1119case "$enable_dsa" in
1120    yes)
1121      # detect if DSA is supported, and turn it off if not.
1122      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1123      AC_CHECK_FUNC(DSA_SIG_new, [
1124      AC_CHECK_TYPE(DSA_SIG*, [
1125      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1126      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1127               fi ], [
1128AC_INCLUDES_DEFAULT
1129#ifdef HAVE_OPENSSL_ERR_H
1130#include <openssl/err.h>
1131#endif
1132
1133#ifdef HAVE_OPENSSL_RAND_H
1134#include <openssl/rand.h>
1135#endif
1136
1137#ifdef HAVE_OPENSSL_CONF_H
1138#include <openssl/conf.h>
1139#endif
1140
1141#ifdef HAVE_OPENSSL_ENGINE_H
1142#include <openssl/engine.h>
1143#endif
1144      ])
1145      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1146               fi ])
1147      else
1148      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1149      fi
1150      ;;
1151    *)
1152      # disable dsa by default, RFC 8624 section 3.1, validators MUST NOT
1153      # support DSA for DNSSEC Validation.
1154      ;;
1155esac
1156
1157AC_ARG_ENABLE(ed25519, AS_HELP_STRING([--disable-ed25519],[Disable ED25519 support]))
1158use_ed25519="no"
1159case "$enable_ed25519" in
1160    no)
1161      ;;
1162    *)
1163      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1164	      AC_CHECK_DECLS([NID_ED25519], [
1165      		use_ed25519="yes"
1166	      ], [ if test "x$enable_ed25519" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED25519 and you used --enable-ed25519.])
1167	      	fi ], [AC_INCLUDES_DEFAULT
1168#include <openssl/evp.h>
1169	      ])
1170      fi
1171      if test $USE_NETTLE = "yes"; then
1172		AC_CHECK_HEADERS([nettle/eddsa.h], use_ed25519="yes",, [AC_INCLUDES_DEFAULT])
1173      fi
1174      if test $use_ed25519 = "yes"; then
1175      		AC_DEFINE_UNQUOTED([USE_ED25519], [1], [Define this to enable ED25519 support.])
1176      fi
1177      ;;
1178esac
1179
1180AC_ARG_ENABLE(ed448, AS_HELP_STRING([--disable-ed448],[Disable ED448 support]))
1181use_ed448="no"
1182case "$enable_ed448" in
1183    no)
1184      ;;
1185    *)
1186      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1187	      AC_CHECK_DECLS([NID_ED448], [
1188      		use_ed448="yes"
1189	      ], [ if test "x$enable_ed448" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED448 and you used --enable-ed448.])
1190	      	fi ], [AC_INCLUDES_DEFAULT
1191#include <openssl/evp.h>
1192	      ])
1193      fi
1194      if test $use_ed448 = "yes"; then
1195      		AC_DEFINE_UNQUOTED([USE_ED448], [1], [Define this to enable ED448 support.])
1196      fi
1197      ;;
1198esac
1199
1200AC_ARG_ENABLE(event-api, AS_HELP_STRING([--enable-event-api],[Enable (experimental) pluggable event base libunbound API installed to unbound-event.h]))
1201case "$enable_event_api" in
1202    yes)
1203      AC_SUBST(UNBOUND_EVENT_INSTALL, [unbound-event-install])
1204      AC_SUBST(UNBOUND_EVENT_UNINSTALL, [unbound-event-uninstall])
1205      ;;
1206    *)
1207      ;;
1208esac
1209
1210AC_ARG_ENABLE(tfo-client, AS_HELP_STRING([--enable-tfo-client],[Enable TCP Fast Open for client mode]))
1211case "$enable_tfo_client" in
1212	yes)
1213		case `uname` in
1214			Linux) AC_CHECK_DECL([MSG_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1215			                     [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1216			                     [AC_INCLUDES_DEFAULT
1217#include <netinet/tcp.h>
1218])
1219					AC_DEFINE_UNQUOTED([USE_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1220			  ;;
1221			Darwin) AC_CHECK_DECL([CONNECT_RESUME_ON_READ_WRITE], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1222			                      [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1223			                      [AC_INCLUDES_DEFAULT
1224#include <sys/socket.h>
1225])
1226					AC_DEFINE_UNQUOTED([USE_OSX_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1227			  ;;
1228		esac
1229	;;
1230	no|*)
1231		;;
1232esac
1233
1234AC_ARG_ENABLE(tfo-server, AS_HELP_STRING([--enable-tfo-server],[Enable TCP Fast Open for server mode]))
1235case "$enable_tfo_server" in
1236	yes)
1237	      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
1238#include <netinet/tcp.h>
1239	      ])
1240		AC_DEFINE_UNQUOTED([USE_TCP_FASTOPEN], [1], [Define this to enable server TCP Fast Open.])
1241		;;
1242	no|*)
1243		;;
1244esac
1245
1246# check for libevent
1247AC_ARG_WITH(libevent, AS_HELP_STRING([--with-libevent=pathname],[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, AS_HELP_STRING([--with-libexpat=path],[specify explicit path for libexpat.]),
1342    [ ],[ withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr" ])
1343AC_MSG_CHECKING(for libexpat)
1344found_libexpat="no"
1345for dir in $withval ; do
1346            if test -f "$dir/include/expat.h"; then
1347		found_libexpat="yes"
1348		dnl assume /usr is in default path.
1349		if test "$dir" != "/usr"; then
1350                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1351		    LDFLAGS="$LDFLAGS -L$dir/lib"
1352		fi
1353            	AC_MSG_RESULT(found in $dir)
1354                break;
1355            fi
1356done
1357if test x_$found_libexpat != x_yes; then
1358	AC_MSG_ERROR([Could not find libexpat, expat.h])
1359fi
1360AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
1361AC_CHECK_DECLS([XML_StopParser], [], [], [AC_INCLUDES_DEFAULT
1362#include <expat.h>
1363])
1364
1365# hiredis (redis C client for cachedb)
1366AC_ARG_WITH(libhiredis, AS_HELP_STRING([--with-libhiredis=path],[specify explicit path for libhiredis.]),
1367    [ ],[ withval="no" ])
1368found_libhiredis="no"
1369if test x_$withval = x_yes -o x_$withval != x_no; then
1370   AC_MSG_CHECKING(for libhiredis)
1371   if test x_$withval = x_ -o x_$withval = x_yes; then
1372            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1373   fi
1374   for dir in $withval ; do
1375            if test -f "$dir/include/hiredis/hiredis.h"; then
1376		found_libhiredis="yes"
1377		dnl assume /usr is in default path.
1378		if test "$dir" != "/usr"; then
1379                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1380		    LDFLAGS="$LDFLAGS -L$dir/lib"
1381		fi
1382		AC_MSG_RESULT(found in $dir)
1383		AC_DEFINE([USE_REDIS], [1], [Define this to use hiredis client.])
1384		LIBS="$LIBS -lhiredis"
1385                break;
1386            fi
1387    done
1388    if test x_$found_libhiredis != x_yes; then
1389	AC_MSG_ERROR([Could not find libhiredis, hiredis.h])
1390    fi
1391    AC_CHECK_HEADERS([hiredis/hiredis.h],,, [AC_INCLUDES_DEFAULT])
1392    AC_CHECK_DECLS([redisConnect], [], [], [AC_INCLUDES_DEFAULT
1393    #include <hiredis/hiredis.h>
1394    ])
1395fi
1396
1397# nghttp2
1398AC_ARG_WITH(libnghttp2, AS_HELP_STRING([--with-libnghttp2=path],[specify explicit path for libnghttp2.]),
1399    [ ],[ withval="no" ])
1400found_libnghttp2="no"
1401if test x_$withval = x_yes -o x_$withval != x_no; then
1402   AC_MSG_CHECKING(for libnghttp2)
1403   if test x_$withval = x_ -o x_$withval = x_yes; then
1404            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1405   fi
1406   for dir in $withval ; do
1407            if test -f "$dir/include/nghttp2/nghttp2.h"; then
1408		found_libnghttp2="yes"
1409		dnl assume /usr is in default path.
1410		if test "$dir" != "/usr"; then
1411                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1412		    LDFLAGS="$LDFLAGS -L$dir/lib"
1413		fi
1414		AC_MSG_RESULT(found in $dir)
1415		AC_DEFINE([HAVE_NGHTTP2], [1], [Define this to use nghttp2 client.])
1416		LIBS="$LIBS -lnghttp2"
1417                break;
1418            fi
1419    done
1420    if test x_$found_libnghttp2 != x_yes; then
1421	AC_MSG_ERROR([Could not find libnghttp2, nghttp2.h])
1422    fi
1423    AC_CHECK_HEADERS([nghttp2/nghttp2.h],,, [AC_INCLUDES_DEFAULT])
1424    AC_CHECK_DECLS([nghttp2_session_server_new], [], [], [AC_INCLUDES_DEFAULT
1425    #include <nghttp2/nghttp2.h>
1426    ])
1427fi
1428
1429# set static linking for uninstalled libraries if requested
1430AC_SUBST(staticexe)
1431staticexe=""
1432AC_ARG_ENABLE(static-exe, AS_HELP_STRING([--enable-static-exe],[ enable to compile executables statically against (event) uninstalled libs, for debug purposes ]),
1433	, )
1434if test x_$enable_static_exe = x_yes; then
1435	staticexe="-static"
1436	if test "$on_mingw" = yes; then
1437		staticexe="-all-static"
1438		# for static compile, include gdi32 and zlib here.
1439		if echo $LIBS | grep 'lgdi32' >/dev/null; then
1440			:
1441		else
1442			LIBS="$LIBS -lgdi32"
1443		fi
1444		LIBS="$LIBS -lz"
1445		LIBS="$LIBS -l:libssp.a"
1446	fi
1447fi
1448
1449# set full static linking if requested
1450AC_ARG_ENABLE(fully-static, AS_HELP_STRING([--enable-fully-static],[ enable to compile fully static ]),
1451	, )
1452if test x_$enable_fully_static = x_yes; then
1453	staticexe="-all-static"
1454	if test "$on_mingw" = yes; then
1455		# for static compile, include gdi32 and zlib here.
1456		if echo $LIBS | grep 'lgdi32' >/dev/null; then
1457			:
1458		else
1459			LIBS="$LIBS -lgdi32"
1460		fi
1461		LIBS="$LIBS -lz"
1462		LIBS="$LIBS -l:libssp.a"
1463	fi
1464fi
1465
1466# set lock checking if requested
1467AC_ARG_ENABLE(lock_checks, AS_HELP_STRING([--enable-lock-checks],[ enable to check lock and unlock calls, for debug purposes ]),
1468	, )
1469if test x_$enable_lock_checks = x_yes; then
1470	AC_DEFINE(ENABLE_LOCK_CHECKS, 1, [Define if you want to use debug lock checking (slow).])
1471	CHECKLOCK_OBJ="checklocks.lo"
1472	AC_SUBST(CHECKLOCK_OBJ)
1473fi
1474
1475ACX_CHECK_GETADDRINFO_WITH_INCLUDES
1476if test "$USE_WINSOCK" = 1; then
1477	AC_DEFINE(UB_ON_WINDOWS, 1, [Use win32 resources and API])
1478	AC_CHECK_HEADERS([iphlpapi.h],,, [AC_INCLUDES_DEFAULT
1479#include <windows.h>
1480	])
1481	AC_CHECK_TOOL(WINDRES, windres)
1482	LIBS="$LIBS -liphlpapi -lcrypt32"
1483	WINAPPS="unbound-service-install.exe unbound-service-remove.exe anchor-update.exe"
1484	AC_SUBST(WINAPPS)
1485	WIN_DAEMON_SRC="winrc/win_svc.c winrc/w_inst.c"
1486	AC_SUBST(WIN_DAEMON_SRC)
1487	WIN_DAEMON_OBJ="win_svc.lo w_inst.lo"
1488	AC_SUBST(WIN_DAEMON_OBJ)
1489	WIN_DAEMON_OBJ_LINK="rsrc_unbound.o"
1490	AC_SUBST(WIN_DAEMON_OBJ_LINK)
1491	WIN_HOST_OBJ_LINK="rsrc_unbound_host.o"
1492	AC_SUBST(WIN_HOST_OBJ_LINK)
1493	WIN_UBANCHOR_OBJ_LINK="rsrc_unbound_anchor.o log.lo locks.lo"
1494	AC_SUBST(WIN_UBANCHOR_OBJ_LINK)
1495	WIN_CONTROL_OBJ_LINK="rsrc_unbound_control.o"
1496	AC_SUBST(WIN_CONTROL_OBJ_LINK)
1497	WIN_CHECKCONF_OBJ_LINK="rsrc_unbound_checkconf.o"
1498	AC_SUBST(WIN_CHECKCONF_OBJ_LINK)
1499fi
1500if test $ac_cv_func_getaddrinfo = no; then
1501	AC_LIBOBJ([fake-rfc2553])
1502fi
1503# check after getaddrinfo for its libraries
1504ACX_FUNC_IOCTLSOCKET
1505
1506# see if daemon(3) exists, and if it is deprecated.
1507AC_CHECK_FUNCS([daemon])
1508if test $ac_cv_func_daemon = yes; then
1509	ACX_FUNC_DEPRECATED([daemon], [(void)daemon(0, 0);], [
1510#include <stdlib.h>
1511])
1512fi
1513
1514AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
1515AC_INCLUDES_DEFAULT
1516#ifdef HAVE_SYS_UN_H
1517#include <sys/un.h>
1518#endif
1519])
1520AC_CHECK_MEMBERS([struct in_pktinfo.ipi_spec_dst],,,[
1521AC_INCLUDES_DEFAULT
1522#if HAVE_SYS_PARAM_H
1523#include <sys/param.h>
1524#endif
1525
1526#ifdef HAVE_SYS_SOCKET_H
1527#include <sys/socket.h>
1528#endif
1529
1530#ifdef HAVE_SYS_UIO_H
1531#include <sys/uio.h>
1532#endif
1533
1534#ifdef HAVE_NETINET_IN_H
1535#include <netinet/in.h>
1536#endif
1537
1538#ifdef HAVE_NETINET_TCP_H
1539#include <netinet/tcp.h>
1540#endif
1541
1542#ifdef HAVE_ARPA_INET_H
1543#include <arpa/inet.h>
1544#endif
1545
1546#ifdef HAVE_WINSOCK2_H
1547#include <winsock2.h>
1548#endif
1549
1550#ifdef HAVE_WS2TCPIP_H
1551#include <ws2tcpip.h>
1552#endif
1553])
1554
1555AC_MSG_CHECKING([for htobe64])
1556AC_LINK_IFELSE([AC_LANG_PROGRAM([
1557#include <stdio.h>
1558#ifdef HAVE_ENDIAN_H
1559#  include <endian.h>
1560#endif
1561#ifdef HAVE_SYS_ENDIAN_H
1562#  include <sys/endian.h>
1563#endif
1564], [unsigned long long x = htobe64(0); printf("%u", (unsigned)x);])],
1565  AC_MSG_RESULT(yes)
1566  AC_DEFINE(HAVE_HTOBE64, 1, [If we have htobe64]),
1567  AC_MSG_RESULT(no))
1568
1569AC_MSG_CHECKING([for be64toh])
1570AC_LINK_IFELSE([AC_LANG_PROGRAM([
1571#include <stdio.h>
1572#ifdef HAVE_ENDIAN_H
1573#  include <endian.h>
1574#endif
1575#ifdef HAVE_SYS_ENDIAN_H
1576#  include <sys/endian.h>
1577#endif
1578], [unsigned long long x = be64toh(0); printf("%u", (unsigned)x);])],
1579  AC_MSG_RESULT(yes)
1580  AC_DEFINE(HAVE_BE64TOH, 1, [If we have be64toh]),
1581  AC_MSG_RESULT(no))
1582
1583AC_SEARCH_LIBS([setusercontext], [util])
1584AC_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])
1585AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
1586AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
1587
1588# check if setreuid en setregid fail, on MacOSX10.4(darwin8).
1589if echo $target_os | grep darwin8 > /dev/null; then
1590	AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
1591fi
1592AC_CHECK_DECLS([inet_pton,inet_ntop], [], [], [
1593AC_INCLUDES_DEFAULT
1594#ifdef HAVE_NETINET_IN_H
1595#include <netinet/in.h>
1596#endif
1597
1598#ifdef HAVE_NETINET_TCP_H
1599#include <netinet/tcp.h>
1600#endif
1601
1602#ifdef HAVE_ARPA_INET_H
1603#include <arpa/inet.h>
1604#endif
1605
1606#ifdef HAVE_WINSOCK2_H
1607#include <winsock2.h>
1608#endif
1609
1610#ifdef HAVE_WS2TCPIP_H
1611#include <ws2tcpip.h>
1612#endif
1613])
1614AC_REPLACE_FUNCS(inet_aton)
1615AC_REPLACE_FUNCS(inet_pton)
1616AC_REPLACE_FUNCS(inet_ntop)
1617AC_REPLACE_FUNCS(snprintf)
1618# test if snprintf return the proper length
1619if test "x$ac_cv_func_snprintf" = xyes; then
1620    if test c${cross_compiling} = cno; then
1621	AC_MSG_CHECKING([for correct snprintf return value])
1622	AC_RUN_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1623[[
1624int main(void) { return !(snprintf(NULL, 0, "test") == 4); }
1625]])], [AC_MSG_RESULT(yes)], [
1626		AC_MSG_RESULT(no)
1627		AC_DEFINE([SNPRINTF_RET_BROKEN], [], [define if (v)snprintf does not return length needed, (but length used)])
1628		AC_LIBOBJ(snprintf)
1629	  ])
1630    fi
1631fi
1632AC_REPLACE_FUNCS(strlcat)
1633AC_REPLACE_FUNCS(strlcpy)
1634AC_REPLACE_FUNCS(memmove)
1635AC_REPLACE_FUNCS(gmtime_r)
1636AC_REPLACE_FUNCS(isblank)
1637AC_REPLACE_FUNCS(explicit_bzero)
1638dnl without CTIME, ARC4-functions and without reallocarray.
1639LIBOBJ_WITHOUT_CTIMEARC4="$LIBOBJS"
1640AC_SUBST(LIBOBJ_WITHOUT_CTIMEARC4)
1641AC_MSG_CHECKING([for reallocarray])
1642AC_LINK_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1643[[
1644#ifndef _OPENBSD_SOURCE
1645#define _OPENBSD_SOURCE 1
1646#endif
1647#include <stdlib.h>
1648int main(void) {
1649	void* p = reallocarray(NULL, 10, 100);
1650	free(p);
1651	return 0;
1652}
1653]])], [AC_MSG_RESULT(yes)
1654	AC_DEFINE(HAVE_REALLOCARRAY, 1, [If we have reallocarray(3)])
1655], [
1656	AC_MSG_RESULT(no)
1657	AC_LIBOBJ(reallocarray)
1658])
1659AC_CHECK_DECLS([reallocarray])
1660if test "$USE_NSS" = "no"; then
1661	AC_REPLACE_FUNCS(arc4random)
1662	AC_REPLACE_FUNCS(arc4random_uniform)
1663	if test "$ac_cv_func_arc4random" = "no"; then
1664		AC_LIBOBJ(arc4_lock)
1665		AC_CHECK_FUNCS([getentropy],,[
1666		    if test "$USE_WINSOCK" = 1; then
1667			AC_LIBOBJ(getentropy_win)
1668		    else
1669			case "$host" in
1670			Darwin|*darwin*)
1671				AC_LIBOBJ(getentropy_osx)
1672			;;
1673			*solaris*|*sunos*|SunOS)
1674				AC_LIBOBJ(getentropy_solaris)
1675				AC_CHECK_HEADERS([sys/sha2.h],, [
1676					AC_CHECK_FUNCS([SHA512_Update],,[
1677						AC_LIBOBJ(sha512)
1678					])
1679				], [AC_INCLUDES_DEFAULT])
1680				if test "$ac_cv_header_sys_sha2_h" = "yes"; then
1681					# this lib needed for sha2 on solaris
1682					LIBS="$LIBS -lmd"
1683				fi
1684				AC_SEARCH_LIBS([clock_gettime], [rt])
1685			;;
1686			*freebsd*|*FreeBSD)
1687				AC_LIBOBJ(getentropy_freebsd)
1688			;;
1689			*linux*|Linux|*)
1690				AC_LIBOBJ(getentropy_linux)
1691				AC_CHECK_FUNCS([SHA512_Update],,[
1692					AC_DEFINE([COMPAT_SHA512], [1], [Do sha512 definitions in config.h])
1693					AC_LIBOBJ(sha512)
1694				])
1695				AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
1696				AC_CHECK_FUNCS([getauxval])
1697				AC_SEARCH_LIBS([clock_gettime], [rt])
1698			;;
1699			esac
1700		    fi
1701		])
1702	fi
1703fi
1704LIBOBJ_WITHOUT_CTIME="$LIBOBJS"
1705AC_SUBST(LIBOBJ_WITHOUT_CTIME)
1706AC_REPLACE_FUNCS(ctime_r)
1707AC_REPLACE_FUNCS(strsep)
1708
1709AC_ARG_ENABLE(allsymbols, AS_HELP_STRING([--enable-allsymbols],[export all symbols from libunbound and link binaries to it, smaller install size but libunbound export table is polluted by internal symbols]))
1710case "$enable_allsymbols" in
1711	yes)
1712	COMMON_OBJ_ALL_SYMBOLS=""
1713	UBSYMS=""
1714	EXTRALINK="-L. -L.libs -lunbound"
1715	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])
1716	;;
1717	no|*)
1718	COMMON_OBJ_ALL_SYMBOLS='$(COMMON_OBJ)'
1719	UBSYMS='-export-symbols $(srcdir)/libunbound/ubsyms.def'
1720	EXTRALINK=""
1721	;;
1722esac
1723AC_SUBST(COMMON_OBJ_ALL_SYMBOLS)
1724AC_SUBST(EXTRALINK)
1725AC_SUBST(UBSYMS)
1726if test x_$enable_lock_checks = x_yes; then
1727	UBSYMS="-export-symbols clubsyms.def"
1728	cp ${srcdir}/libunbound/ubsyms.def clubsyms.def
1729	echo lock_protect >> clubsyms.def
1730	echo lock_unprotect >> clubsyms.def
1731	echo lock_get_mem >> clubsyms.def
1732	echo checklock_start >> clubsyms.def
1733	echo checklock_stop >> clubsyms.def
1734	echo checklock_lock >> clubsyms.def
1735	echo checklock_unlock >> clubsyms.def
1736	echo checklock_init >> clubsyms.def
1737	echo checklock_thrcreate >> clubsyms.def
1738	echo checklock_thrjoin >> clubsyms.def
1739fi
1740
1741# check for dnstap if requested
1742dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
1743    [
1744        AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
1745        AC_SUBST([ENABLE_DNSTAP], [1])
1746
1747        AC_SUBST([opt_dnstap_socket_path])
1748        ACX_ESCAPE_BACKSLASH($opt_dnstap_socket_path, hdr_dnstap_socket_path)
1749        AC_DEFINE_UNQUOTED(DNSTAP_SOCKET_PATH,
1750            ["$hdr_dnstap_socket_path"], [default dnstap socket path])
1751	AC_SUBST(DNSTAP_SOCKET_PATH,["$hdr_dnstap_socket_path"])
1752	AC_SUBST(DNSTAP_SOCKET_TESTBIN,['unbound-dnstap-socket$(EXEEXT)'])
1753        AC_SUBST([DNSTAP_SRC], ["dnstap/dnstap.c dnstap/dnstap.pb-c.c dnstap/dnstap_fstrm.c dnstap/dtstream.c"])
1754        AC_SUBST([DNSTAP_OBJ], ["dnstap.lo dnstap.pb-c.lo dnstap_fstrm.lo dtstream.lo"])
1755    ],
1756    [
1757        AC_SUBST([ENABLE_DNSTAP], [0])
1758    ]
1759)
1760
1761# check for dnscrypt if requested
1762dnsc_DNSCRYPT([
1763        AC_DEFINE([USE_DNSCRYPT], [1], [Define to 1 to enable dnscrypt support])
1764        AC_SUBST([ENABLE_DNSCRYPT], [1])
1765
1766        AC_SUBST([DNSCRYPT_SRC], ["dnscrypt/dnscrypt.c"])
1767        AC_SUBST([DNSCRYPT_OBJ], ["dnscrypt.lo"])
1768    ],
1769    [
1770        AC_SUBST([ENABLE_DNSCRYPT], [0])
1771    ]
1772)
1773
1774# check for cachedb if requested
1775AC_ARG_ENABLE(cachedb, AS_HELP_STRING([--enable-cachedb],[enable cachedb module that can use external cache storage]))
1776# turn on cachedb when hiredis support is enabled.
1777if test "$found_libhiredis" = "yes"; then enable_cachedb="yes"; fi
1778case "$enable_cachedb" in
1779    yes)
1780    	AC_DEFINE([USE_CACHEDB], [1], [Define to 1 to use cachedb support])
1781    	;;
1782    no|*)
1783    	# nothing
1784    	;;
1785esac
1786
1787# check for ipsecmod if requested
1788AC_ARG_ENABLE(ipsecmod, AS_HELP_STRING([--enable-ipsecmod],[Enable ipsecmod module that facilitates opportunistic IPsec]))
1789case "$enable_ipsecmod" in
1790	yes)
1791		AC_DEFINE([USE_IPSECMOD], [1], [Define to 1 to use ipsecmod support.])
1792		IPSECMOD_OBJ="ipsecmod.lo ipsecmod-whitelist.lo"
1793		AC_SUBST(IPSECMOD_OBJ)
1794		IPSECMOD_HEADER='$(srcdir)/ipsecmod/ipsecmod.h $(srcdir)/ipsecmod/ipsecmod-whitelist.h'
1795		AC_SUBST(IPSECMOD_HEADER)
1796		;;
1797	no|*)
1798		# nothing
1799		;;
1800esac
1801
1802# check for ipset if requested
1803AC_ARG_ENABLE(ipset, AS_HELP_STRING([--enable-ipset],[enable ipset module]))
1804case "$enable_ipset" in
1805    yes)
1806		AC_DEFINE([USE_IPSET], [1], [Define to 1 to use ipset support])
1807		IPSET_SRC="ipset/ipset.c"
1808		AC_SUBST(IPSET_SRC)
1809		IPSET_OBJ="ipset.lo"
1810		AC_SUBST(IPSET_OBJ)
1811
1812		# mnl
1813		AC_ARG_WITH(libmnl, AS_HELP_STRING([--with-libmnl=path],[specify explicit path for libmnl.]),
1814			[ ],[ withval="yes" ])
1815		found_libmnl="no"
1816		AC_MSG_CHECKING(for libmnl)
1817		if test x_$withval = x_ -o x_$withval = x_yes; then
1818			withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1819		fi
1820		for dir in $withval ; do
1821			if test -f "$dir/include/libmnl/libmnl.h"; then
1822				found_libmnl="yes"
1823				dnl assume /usr is in default path.
1824				if test "$dir" != "/usr"; then
1825					CPPFLAGS="$CPPFLAGS -I$dir/include"
1826					LDFLAGS="$LDFLAGS -L$dir/lib"
1827				fi
1828				AC_MSG_RESULT(found in $dir)
1829				LIBS="$LIBS -lmnl"
1830				break;
1831			fi
1832		done
1833		if test x_$found_libmnl != x_yes; then
1834			AC_MSG_ERROR([Could not find libmnl, libmnl.h])
1835		fi
1836		;;
1837    no|*)
1838    	# nothing
1839		;;
1840esac
1841AC_ARG_ENABLE(explicit-port-randomisation, AS_HELP_STRING([--disable-explicit-port-randomisation],[disable explicit source port randomisation and rely on the kernel to provide random source ports]))
1842case "$enable_explicit_port_randomisation" in
1843	no)
1844		AC_DEFINE([DISABLE_EXPLICIT_PORT_RANDOMISATION], [1], [Define this to enable kernel based UDP source port randomization.])
1845		;;
1846	yes|*)
1847		;;
1848esac
1849
1850
1851AC_MSG_CHECKING([if ${MAKE:-make} supports $< with implicit rule in scope])
1852# on openBSD, the implicit rule make $< work.
1853# on Solaris, it does not work ($? is changed sources, $^ lists dependencies).
1854# gmake works.
1855cat >conftest.make <<EOF
1856all:	conftest.lo
1857
1858conftest.lo foo.lo bla.lo:
1859	if test -f "\$<"; then touch \$@; fi
1860
1861.SUFFIXES: .lo
1862.c.lo:
1863	if test -f "\$<"; then touch \$@; fi
1864
1865conftest.lo:        conftest.dir/conftest.c
1866EOF
1867mkdir conftest.dir
1868touch conftest.dir/conftest.c
1869rm -f conftest.lo conftest.c
1870${MAKE:-make} -f conftest.make >/dev/null
1871rm -f conftest.make conftest.c conftest.dir/conftest.c
1872rm -rf conftest.dir
1873if test ! -f conftest.lo; then
1874	AC_MSG_RESULT(no)
1875	SOURCEDETERMINE='echo "$^" | awk "-F " "{print \$$1;}" > .source'
1876	SOURCEFILE='`cat .source`'
1877else
1878	AC_MSG_RESULT(yes)
1879	SOURCEDETERMINE=':'
1880	SOURCEFILE='$<'
1881fi
1882rm -f conftest.lo
1883AC_SUBST(SOURCEDETERMINE)
1884AC_SUBST(SOURCEFILE)
1885
1886# see if we want to build the library or everything
1887ALLTARGET="alltargets"
1888INSTALLTARGET="install-all"
1889AC_ARG_WITH(libunbound-only, AS_HELP_STRING([--with-libunbound-only],[do not build daemon and tool programs]),
1890	[
1891	if test "$withval" = "yes"; then
1892		ALLTARGET="lib"
1893		INSTALLTARGET="install-lib"
1894	fi
1895])
1896if test $ALLTARGET = "alltargets"; then
1897	if test $USE_NSS = "yes"; then
1898		AC_MSG_ERROR([--with-nss can only be used in combination with --with-libunbound-only.])
1899	fi
1900	if test $USE_NETTLE = "yes"; then
1901		AC_MSG_ERROR([--with-nettle can only be used in combination with --with-libunbound-only.])
1902	fi
1903fi
1904
1905AC_SUBST(ALLTARGET)
1906AC_SUBST(INSTALLTARGET)
1907
1908ACX_STRIP_EXT_FLAGS
1909if test -n "$LATE_LDFLAGS"; then
1910  LDFLAGS="$LATE_LDFLAGS $LDFLAGS"
1911fi
1912# remove start spaces
1913LDFLAGS=`echo "$LDFLAGS"|sed -e 's/^ *//'`
1914LIBS=`echo "$LIBS"|sed -e 's/^ *//'`
1915
1916AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [10240], [Define to the maximum message length to pass to syslog.])
1917
1918AH_BOTTOM(
1919dnl this must be first AH_CONFIG, to define the flags before any includes.
1920AHX_CONFIG_EXT_FLAGS
1921
1922dnl includes
1923[
1924#ifndef _OPENBSD_SOURCE
1925#define _OPENBSD_SOURCE 1
1926#endif
1927
1928#ifndef UNBOUND_DEBUG
1929# ifndef NDEBUG
1930#  define NDEBUG
1931# endif
1932#endif
1933
1934/** Use small-ldns codebase */
1935#define USE_SLDNS 1
1936#ifdef HAVE_SSL
1937#  define LDNS_BUILD_CONFIG_HAVE_SSL 1
1938#endif
1939
1940#include <stdio.h>
1941#include <string.h>
1942#include <unistd.h>
1943#include <assert.h>
1944
1945#if STDC_HEADERS
1946#include <stdlib.h>
1947#include <stddef.h>
1948#endif
1949
1950#ifdef HAVE_STDARG_H
1951#include <stdarg.h>
1952#endif
1953
1954#ifdef HAVE_STDINT_H
1955#include <stdint.h>
1956#endif
1957
1958#include <errno.h>
1959
1960#if HAVE_SYS_PARAM_H
1961#include <sys/param.h>
1962#endif
1963
1964#ifdef HAVE_SYS_SOCKET_H
1965#include <sys/socket.h>
1966#endif
1967
1968#ifdef HAVE_SYS_UIO_H
1969#include <sys/uio.h>
1970#endif
1971
1972#ifdef HAVE_NETINET_IN_H
1973#include <netinet/in.h>
1974#endif
1975
1976#ifdef HAVE_NETINET_TCP_H
1977#include <netinet/tcp.h>
1978#endif
1979
1980#ifdef HAVE_ARPA_INET_H
1981#include <arpa/inet.h>
1982#endif
1983
1984#ifdef HAVE_WINSOCK2_H
1985#include <winsock2.h>
1986#endif
1987
1988#ifdef HAVE_WS2TCPIP_H
1989#include <ws2tcpip.h>
1990#endif
1991
1992#ifndef USE_WINSOCK
1993#define ARG_LL "%ll"
1994#else
1995#define ARG_LL "%I64"
1996#endif
1997
1998#ifndef AF_LOCAL
1999#define AF_LOCAL AF_UNIX
2000#endif
2001]
2002
2003AHX_CONFIG_FORMAT_ATTRIBUTE
2004AHX_CONFIG_UNUSED_ATTRIBUTE
2005AHX_CONFIG_FSEEKO
2006AHX_CONFIG_MAXHOSTNAMELEN
2007#if !defined(HAVE_SNPRINTF) || defined(SNPRINTF_RET_BROKEN)
2008#define snprintf snprintf_unbound
2009#define vsnprintf vsnprintf_unbound
2010#include <stdarg.h>
2011int snprintf (char *str, size_t count, const char *fmt, ...);
2012int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
2013#endif /* HAVE_SNPRINTF or SNPRINTF_RET_BROKEN */
2014AHX_CONFIG_INET_PTON(unbound)
2015AHX_CONFIG_INET_NTOP(unbound)
2016AHX_CONFIG_INET_ATON(unbound)
2017AHX_CONFIG_MEMMOVE(unbound)
2018AHX_CONFIG_STRLCAT(unbound)
2019AHX_CONFIG_STRLCPY(unbound)
2020AHX_CONFIG_GMTIME_R(unbound)
2021AHX_CONFIG_REALLOCARRAY(unbound)
2022AHX_CONFIG_W32_SLEEP
2023AHX_CONFIG_W32_USLEEP
2024AHX_CONFIG_W32_RANDOM
2025AHX_CONFIG_W32_SRANDOM
2026AHX_CONFIG_W32_FD_SET_T
2027AHX_CONFIG_IPV6_MIN_MTU
2028AHX_MEMCMP_BROKEN(unbound)
2029
2030[
2031#ifndef HAVE_CTIME_R
2032#define ctime_r unbound_ctime_r
2033char *ctime_r(const time_t *timep, char *buf);
2034#endif
2035
2036#ifndef HAVE_STRSEP
2037#define strsep unbound_strsep
2038char *strsep(char **stringp, const char *delim);
2039#endif
2040
2041#ifndef HAVE_ISBLANK
2042#define isblank unbound_isblank
2043int isblank(int c);
2044#endif
2045
2046#ifndef HAVE_EXPLICIT_BZERO
2047#define explicit_bzero unbound_explicit_bzero
2048void explicit_bzero(void* buf, size_t len);
2049#endif
2050
2051#if defined(HAVE_INET_NTOP) && !HAVE_DECL_INET_NTOP
2052const char *inet_ntop(int af, const void *src, char *dst, size_t size);
2053#endif
2054
2055#if defined(HAVE_INET_PTON) && !HAVE_DECL_INET_PTON
2056int inet_pton(int af, const char* src, void* dst);
2057#endif
2058
2059#if !defined(HAVE_STRPTIME) || !defined(STRPTIME_WORKS)
2060#define strptime unbound_strptime
2061struct tm;
2062char *strptime(const char *s, const char *format, struct tm *tm);
2063#endif
2064
2065#if !HAVE_DECL_REALLOCARRAY
2066void *reallocarray(void *ptr, size_t nmemb, size_t size);
2067#endif
2068
2069#ifdef HAVE_LIBBSD
2070#include <bsd/string.h>
2071#include <bsd/stdlib.h>
2072#endif
2073
2074#ifdef HAVE_LIBRESSL
2075#  if !HAVE_DECL_STRLCPY
2076size_t strlcpy(char *dst, const char *src, size_t siz);
2077#  endif
2078#  if !HAVE_DECL_STRLCAT
2079size_t strlcat(char *dst, const char *src, size_t siz);
2080#  endif
2081#  if !HAVE_DECL_ARC4RANDOM && defined(HAVE_ARC4RANDOM)
2082uint32_t arc4random(void);
2083#  endif
2084#  if !HAVE_DECL_ARC4RANDOM_UNIFORM && defined(HAVE_ARC4RANDOM_UNIFORM)
2085uint32_t arc4random_uniform(uint32_t upper_bound);
2086#  endif
2087#endif /* HAVE_LIBRESSL */
2088#ifndef HAVE_ARC4RANDOM
2089int getentropy(void* buf, size_t len);
2090uint32_t arc4random(void);
2091void arc4random_buf(void* buf, size_t n);
2092void _ARC4_LOCK(void);
2093void _ARC4_UNLOCK(void);
2094void _ARC4_LOCK_DESTROY(void);
2095#endif
2096#ifndef HAVE_ARC4RANDOM_UNIFORM
2097uint32_t arc4random_uniform(uint32_t upper_bound);
2098#endif
2099#ifdef COMPAT_SHA512
2100#ifndef SHA512_DIGEST_LENGTH
2101#define SHA512_BLOCK_LENGTH		128
2102#define SHA512_DIGEST_LENGTH		64
2103#define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
2104typedef struct _SHA512_CTX {
2105	uint64_t	state[8];
2106	uint64_t	bitcount[2];
2107	uint8_t	buffer[SHA512_BLOCK_LENGTH];
2108} SHA512_CTX;
2109#endif /* SHA512_DIGEST_LENGTH */
2110void SHA512_Init(SHA512_CTX*);
2111void SHA512_Update(SHA512_CTX*, void*, size_t);
2112void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
2113unsigned char *SHA512(void* data, unsigned int data_len, unsigned char *digest);
2114#endif /* COMPAT_SHA512 */
2115
2116
2117
2118#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))
2119   /* using version of libevent that is not threadsafe. */
2120#  define LIBEVENT_SIGNAL_PROBLEM 1
2121#endif
2122
2123#ifndef CHECKED_INET6
2124#  define CHECKED_INET6
2125#  ifdef AF_INET6
2126#    define INET6
2127#  else
2128#    define AF_INET6        28
2129#  endif
2130#endif /* CHECKED_INET6 */
2131
2132#ifndef HAVE_GETADDRINFO
2133struct sockaddr_storage;
2134#include "compat/fake-rfc2553.h"
2135#endif
2136
2137#ifdef UNBOUND_ALLOC_STATS
2138#  define malloc(s) unbound_stat_malloc_log(s, __FILE__, __LINE__, __func__)
2139#  define calloc(n,s) unbound_stat_calloc_log(n, s, __FILE__, __LINE__, __func__)
2140#  define free(p) unbound_stat_free_log(p, __FILE__, __LINE__, __func__)
2141#  define realloc(p,s) unbound_stat_realloc_log(p, s, __FILE__, __LINE__, __func__)
2142void *unbound_stat_malloc(size_t size);
2143void *unbound_stat_calloc(size_t nmemb, size_t size);
2144void unbound_stat_free(void *ptr);
2145void *unbound_stat_realloc(void *ptr, size_t size);
2146void *unbound_stat_malloc_log(size_t size, const char* file, int line,
2147	const char* func);
2148void *unbound_stat_calloc_log(size_t nmemb, size_t size, const char* file,
2149	int line, const char* func);
2150void unbound_stat_free_log(void *ptr, const char* file, int line,
2151	const char* func);
2152void *unbound_stat_realloc_log(void *ptr, size_t size, const char* file,
2153	int line, const char* func);
2154#elif defined(UNBOUND_ALLOC_LITE)
2155#  include "util/alloc.h"
2156#endif /* UNBOUND_ALLOC_LITE and UNBOUND_ALLOC_STATS */
2157
2158/** default port for DNS traffic. */
2159#define UNBOUND_DNS_PORT 53
2160/** default port for DNS over TLS traffic. */
2161#define UNBOUND_DNS_OVER_TLS_PORT 853
2162/** default port for DNS over HTTPS traffic. */
2163#define UNBOUND_DNS_OVER_HTTPS_PORT 443
2164/** default port for unbound control traffic, registered port with IANA,
2165    ub-dns-control  8953/tcp    unbound dns nameserver control */
2166#define UNBOUND_CONTROL_PORT 8953
2167/** the version of unbound-control that this software implements */
2168#define UNBOUND_CONTROL_VERSION 1
2169
2170])
2171
2172dnl if we build from source tree, the man pages need @date@ and @version@
2173dnl if this is a distro tarball, that was already done by makedist.sh
2174AC_SUBST(version, [VERSION_MAJOR.VERSION_MINOR.VERSION_MICRO])
2175AC_SUBST(date, [`date +'%b %e, %Y'`])
2176
2177AC_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])
2178AC_CONFIG_HEADERS([config.h])
2179AC_OUTPUT
2180