Blob


1 #!/bin/sh
2 #
3 # Copyright (c) 2021, 2022 Omar Polo <op@omarpolo.com>
4 # Copyright (c) 2011, 2013-2022 Ingo Schwarze <schwarze@openbsd.org>
5 # Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
6 #
7 # Permission to use, copy, modify, and distribute this software for any
8 # purpose with or without fee is hereby granted, provided that the above
9 # copyright notice and this permission notice appear in all copies.
10 #
11 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 set -e
21 [ -w config.log ] && mv config.log config.log.old
22 [ -w config.h ] && mv config.h config.h.old
24 # Output file descriptor usage:
25 # 1 (stdout): config.h, Makefile.local
26 # 2 (stderr): original stderr, usually to the console
27 # 3: config.log
29 exec 3> config.log
30 echo "file config.log: writing..."
32 # --------
33 # default settings: initialize all vars here such that nothing is
34 # leaked from the environment except for CC, CFLAGS and LDFLAGS
36 VERSION=2.0-unstable
38 CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | make ${MAKE_FLAGS} -sf -`
40 if [ -z "${CFLAGS}" ]; then
41 CFLAGS=`printf "all:\\n\\t@echo \\\$(CFLAGS)\\n" | make ${MAKE_FLAGS} -sf -`
42 fi
44 CFLAGS="${CFLAGS} -W -Wall -Wextra -Wmissing-prototypes -Wstrict-prototypes"
45 CFLAGS="${CFLAGS} -Wwrite-strings -Wno-unused-parameter"
47 if [ -z "${LDFLAGS}" ]; then
48 LDFLAGS=`printf "all:\\n\\t@echo \\\$(LDFLAGS)\\n" | make ${MAKE_FLAGS} -sf -`
49 LDFLAGS="-ltls -levent -lcrypto"
50 fi
52 LD_IMSG=
53 STATIC=
54 YACC=yacc
56 COBJS=
58 DISABLE_SANDBOX=0
60 NEED_GNU_SOURCE=0
61 NEED_OPENBSD_SOURCE=0
63 PREFIX="/usr/local"
64 BINDIR=
66 INSTALL="install"
68 add_library() {
69 if pkg-config "$1"; then
70 CFLAGS="${CFLAGS} $(pkg-config --cflags "$1")"
71 LDFLAGS="${LDFLAGS} $(pkg-config --libs "$1")"
72 fi
73 }
75 # try to auto detect CFLAGS and LDFLAGS
76 if command -v pkg-config >/dev/null; then
77 add_library "libtls"
78 add_library "openssl"
80 case "$(uname)" in
81 OpenBSD)
82 # use libevent and imsg in base
83 ;;
84 *)
85 add_library "libevent"
86 add_library "libimsg"
87 ;;
88 esac
90 case "$(uname)" in
91 *BSD|DragonFly|Darwin)
92 ;;
93 *)
94 add_library "libbsd-ctor libbsd-overlay"
95 ;;
96 esac
97 fi
99 # auto detect yacc/bison
100 command -v ${YACC} >/dev/null || {
101 echo "${YACC} not found: trying bison" 1>&2
102 echo "${YACC} not found: trying bison" 1>&3
103 YACC=bison
104 command -v ${YACC} >/dev/null || {
105 echo "${YACC} not found: giving up" 1>&2
106 echo "${YACC} not found: giving up" 1>&3
110 # --------
111 # allow certain variables to be overridden on the command line
113 for keyvals in "$@"; do
114 if [ "$keyvals" = "--disable-sandbox" ]; then
115 DISABLE_SANDBOX=1
116 continue
117 fi
119 if [ "$keyvals" = "--enable-sandbox" ]; then
120 DISABLE_SANDBOX=0
121 continue
122 fi
124 key=`echo $keyvals | cut -s -d '=' -f1`
125 if [ -z "$key" ]; then
126 echo "$0: invalid key-value: $keyvals" 1>&2
127 exit 1
128 fi
129 val=`echo $keyvals | cut -d '=' -f 2-`
130 case "$key" in
131 BINDIR) BINDIR="$val" ;;
132 CC) CC="$val" ;;
133 CFLAGS) CFLAGS="$val" ;;
134 DESTDIR) DESTDIR="$val" ;;
135 LDFLAGS) LDFLAGS="$val" ;;
136 MANDIR) MANDIR="$val" ;;
137 PREFIX) PREFIX="$val" ;;
138 YACC) YACC="$val" ;;
139 --prefix) PREFIX="$val" ;;
140 *)
141 echo "$0: invalid key: $key" 1>&2
142 exit 1
143 esac
144 done
146 # --------
147 # Allow configure.local to override all variables, default settings,
148 # command-line arguments, and tested features, above.
150 if [ -r ./configure.local ]; then
151 echo "configure.local: reading..." 1>&2
152 echo "configure.local: reading..." 1>&3
153 cat ./configure.local 1>&3
154 . ./configure.local
155 else
156 echo "configure.local: no (fully automatic configuration)" 1>&2
157 echo "configure.local: no (fully automatic configuration)" 1>&3
158 fi
160 # --------
161 # tests functions
163 # Check whether this HAVE_ setting is manually overridden.
164 # If yes, use the override, if no, do not decide anything yet.
165 # Arguments: test file name, test var name, manual value
166 ismanual() {
167 [ -z "${3}" ] && return 1
168 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
169 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
170 echo 1>&3
171 return 0
174 # Run a single autoconfiguration test.
175 # In case of success, enable the feature.
176 # In case of failure, do not decide anything yet.
177 # Arguments: test file name, test var name, additional CFLAGS
178 singletest() {
179 n=${1}${3}
180 cat 1>&3 << __HEREDOC__
181 testing ${n} ...
182 ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
183 __HEREDOC__
185 if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
186 then
187 echo "tested ${n}: yes" 1>&2
188 echo "tested ${n}: yes" 1>&3
189 echo 1>&3
190 eval HAVE_${2}=1
191 [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
192 [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
193 [ "${3}" = "-lutil" ] && LD_IMSG="-lutil"
194 rm "have/${1}"
195 return 0
196 else
197 echo "tested ${n}: no (compilation failed)" 1>&2
198 echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
199 echo "result of compiling ${n}: no" 1>&3
200 echo 1>&3
201 return 1
202 fi
205 # Run a complete autoconfiguration test, including the check for
206 # a manual override and disabling the feature on failure.
207 # Arguments: test file name, test var name, additional CFLAGS
208 # The final argument can optionally be repeated a second time.
209 runtest() {
210 eval _manual=\${HAVE_${2}}
211 ismanual "${1}" "${2}" "${_manual}" && return 0
212 singletest "${1}" "${2}" "${3}" && return 0
213 [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
214 eval HAVE_${2}=0
215 return 1
218 # --------
219 # compiler options
221 COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
223 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
224 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
225 echo 1>&3
227 if [ -n "${STATIC}" ]; then
228 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
229 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
230 echo 1>&3
231 else
232 runtest noop STATIC -static || true
233 [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
234 echo "selected STATIC=\"${STATIC}\"" 1>&2
235 echo "selected STATIC=\"${STATIC}\"" 1>&3
236 echo 1>&3
237 fi
239 # --------
240 # tests for config.h
242 runtest err ERR || true
243 runtest explicit_bzero EXPLICIT_BZERO || true
244 runtest freezero FREEZERO || true
245 runtest getdtablecount GETDTABLECOUNT || true
246 runtest getdtablesize GETDTABLESIZE || true
247 runtest getprogname GETPROGNAME || true
248 runtest imsg IMSG -lutil || true
249 runtest landlock LANDLOCK || true
250 runtest libevent LIBEVENT || true
251 runtest libevent2 LIBEVENT2 || true
252 runtest libtls LIBTLS || true
253 runtest memmem MEMMEM "" -D_GNU_SOURCE || true
254 runtest openssl OPENSSL || true
255 runtest pr_set_name PR_SET_NAME || true
256 runtest program_invocation_short_name PROGRAM_INVOCATION_SHORT_NAME "" -D_GNU_SOURCE || true
257 runtest queue_h QUEUE_H || true
258 runtest reallocarray REALLOCARRAY || true
259 runtest recallocarray RECALLOCARRAY || true
260 runtest setproctitle SETPROCTITLE || true
261 runtest strlcat STRLCAT || true
262 runtest strlcpy STRLCPY || true
263 runtest strtonum STRTONUM || true
264 runtest tree_h TREE_H || true
265 runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
267 if [ ${HAVE_LIBTLS} -eq 0 ]; then
268 echo "FATAL: libtls not found" 1>&2
269 echo "FATAL: libtls not found" 1>&3
270 exit 1
271 fi
273 if [ ${HAVE_OPENSSL} -eq 0 ]; then
274 echo "FATAL: openssl not found" 1>&2
275 echo "FATAL: openssl not found" 1>&3
276 exit 1
277 fi
279 if [ ${HAVE_LIBEVENT} -eq 0 ]; then
280 echo "FATAL: libevent not found" 1>&2
281 echo "FATAL: libevent not found" 1>&3
282 exit 1
283 fi
285 if [ ${HAVE_QUEUE_H} -eq 0 -o ${HAVE_IMSG} -eq 0 -o ${HAVE_TREE_H} -eq 0 ]; then
286 CFLAGS="${CFLAGS} -I ${PWD}/compat"
287 fi
289 # --------
290 # write config.h
292 exec > config.h
294 cat <<__HEREDOC__
295 #ifdef __cplusplus
296 #error "Do not use C++."
297 #endif
298 __HEREDOC__
300 [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
301 [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
303 [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 -o ${HAVE_IMSG} -eq 0 ] \
304 && echo "#include <sys/types.h>"
305 [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
307 if [ ${HAVE_QUEUE_H} -eq 1 ]; then
308 echo "#include <sys/queue.h>"
309 else
310 echo "#include <queue.h>"
311 fi
313 if [ ${HAVE_TREE_H} -eq 1 ]; then
314 echo "#include <sys/tree.h>"
315 else
316 echo "#include <tree.h>"
317 fi
319 echo "#include <sys/types.h>"
320 echo "#include <sys/uio.h>"
321 echo "#include <stdint.h>"
322 echo "#include <imsg.h>"
323 echo "#include <limits.h>"
325 cat <<__HEREDOC__
327 #define VERSION "${VERSION}"
328 #define DISABLE_SANDBOX ${DISABLE_SANDBOX}
330 #define HAVE_ERR ${HAVE_ERR}
331 #define HAVE_EXPLICIT_BZERO ${HAVE_EXPLICIT_BZERO}
332 #define HAVE_FREEZERO ${HAVE_FREEZERO}
333 #define HAVE_GETDTABLECOUNT ${HAVE_GETDTABLECOUNT}
334 #define HAVE_GETDTABLESIZE ${HAVE_GETDTABLESIZE}
335 #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
336 #define HAVE_IMSG ${HAVE_IMSG}
337 #define HAVE_LANDLOCK ${HAVE_LANDLOCK}
338 #define HAVE_LIBEVENT ${HAVE_LIBEVENT}
339 #define HAVE_LIBEVENT2 ${HAVE_LIBEVENT2}
340 #define HAVE_PROGRAM_INVOCATION_SHORT_NAME ${HAVE_PROGRAM_INVOCATION_SHORT_NAME}
341 #define HAVE_PR_SET_NAME ${HAVE_PR_SET_NAME}
342 #define HAVE_QUEUE_H ${HAVE_QUEUE_H}
343 #define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
344 #define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
345 #define HAVE_SETPROCTITLE ${HAVE_SETPROCTITLE}
346 #define HAVE_STRLCAT ${HAVE_STRLCAT}
347 #define HAVE_STRLCPY ${HAVE_STRLCPY}
348 #define HAVE_STRTONUM ${HAVE_STRTONUM}
349 #define HAVE_TREE_H ${HAVE_TREE_H}
350 #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
352 __HEREDOC__
354 [ ${HAVE_EXPLICIT_BZERO} -eq 0 -o \
355 ${HAVE_FREEZERO} -eq 0 -o \
356 ${HAVE_REALLOCARRAY} -eq 0 -o \
357 ${HAVE_RECALLOCARRAY} -eq 0 -o \
358 ${HAVE_STRLCAT} -eq 0 -o \
359 ${HAVE_STRLCPY} -eq 0 -o \
360 ${HAVE_STRTONUM} -eq 0 ] && echo "#include <stddef.h>"
362 if [ ${HAVE_ERR} -eq 0 ]; then
363 echo "extern void err(int, const char*, ...);"
364 echo "extern void errx(int, const char*, ...);"
365 echo "extern void warn(const char*, ...);"
366 echo "extern void warnx(const char*, ...);"
367 COBJS="${COBJS} compat/err.o"
368 else
369 echo "#include <err.h>"
370 fi
371 if [ ${HAVE_EXPLICIT_BZERO} -eq 0 ]; then
372 echo "extern void explicit_bzero(void*, size_t);"
373 COBJS="${COBJS} compat/explicit_bzero.o"
374 fi
375 if [ ${HAVE_FREEZERO} -eq 0 ]; then
376 echo "extern void freezero(void*, size_t);"
377 COBJS="${COBJS} compat/freezero.o"
378 fi
379 if [ ${HAVE_GETDTABLECOUNT} -eq 0 ]; then
380 echo "extern int getdtablecount(void);"
381 COBJS="${COBJS} compat/getdtablecount.o"
382 fi
383 if [ ${HAVE_GETDTABLESIZE} -eq 0 ]; then
384 echo "extern int getdtablesize(void);"
385 COBJS="${COBJS} compat/getdtablesize.o"
386 fi
387 if [ ${HAVE_GETPROGNAME} -eq 0 ]; then
388 echo "extern const char *getprogname(void);"
389 COBJS="${COBJS} compat/getprogname.o"
390 fi
391 if [ ${HAVE_IMSG} -eq 0 ]; then
392 COBJS="${COBJS} compat/imsg.o compat/imsg-buffer.o"
393 fi
394 if [ ${HAVE_MEMMEM} -eq 0 ]; then
395 echo "extern void *memmem(const void *, size_t, const void *, size_t);"
396 COBJS="${COBJS} compat/memmem.o"
397 fi
398 if [ ${HAVE_REALLOCARRAY} -eq 0 ]; then
399 echo "extern void *reallocarray(void*, size_t, size_t);"
400 COBJS="${COBJS} compat/reallocarray.o"
401 fi
402 if [ ${HAVE_RECALLOCARRAY} -eq 0 ]; then
403 echo "extern void *recallocarray(void*, size_t, size_t, size_t);"
404 COBJS="${COBJS} compat/recallocarray.o"
405 fi
406 if [ ${HAVE_SETPROCTITLE} -eq 0 ]; then
407 echo "extern void setproctitle(const char *fmt, ...);"
408 COBJS="${COBJS} compat/setproctitle.o"
409 fi
410 if [ ${HAVE_STRLCAT} -eq 0 ]; then
411 echo "extern size_t strlcat(char*, const char*, size_t);"
412 COBJS="${COBJS} compat/strlcat.o"
413 fi
414 if [ ${HAVE_STRLCPY} -eq 0 ]; then
415 echo "extern size_t strlcpy(char*, const char*, size_t);"
416 COBJS="${COBJS} compat/strlcpy.o"
417 fi
418 if [ ${HAVE_STRTONUM} -eq 0 ]; then
419 echo "extern long long strtonum(const char*, long long, long long, const char**);"
420 COBJS="${COBJS} compat/strtonum.o"
421 fi
422 if [ ${HAVE_VASPRINTF} -eq 0 ]; then
423 echo "extern int vasprintf(char**, const char*, va_list);"
424 COBJS="${COBJS} compat/vasprintf.o"
425 fi
427 cat <<__HEREDOC__
429 #ifndef __dead
430 #define __dead __attribute__((noreturn))
431 #endif
433 /* Linux and OpenBSD have LOGIN_NAME_MAX, FreeBSD MAXLOGNAME. */
434 #ifndef LOGIN_NAME_MAX
435 # if defined(MAXLOGNAME)
436 # define LOGIN_NAME_MAX MAXLOGNAME
437 # elif defined(_POSIX_LOGIN_NAME_MAX)
438 # define LOGIN_NAME_MAX _POSIX_LOGIN_NAME_MAX
439 # else
440 # define LOGIN_NAME_MAX 32
441 # endif
442 #endif
444 #ifndef HOST_NAME_MAX
445 # if defined(_POSIX_HOST_NAME_MAX)
446 # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
447 # else
448 # define HOST_NAME_MAX 255
449 # endif
450 #endif
451 __HEREDOC__
453 echo "file config.h: written" 1>&2
454 echo "file config.h: written" 1>&3
456 # --------
457 # tests for Makefile.local
459 exec > Makefile.local
461 [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
462 [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
464 [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
465 [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
466 [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
467 [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
469 cat << __HEREDOC__
470 CC = ${CC}
471 CFLAGS = ${CFLAGS}
472 LDFLAGS = ${LDFLAGS} ${LD_IMSG}
473 YACC = ${YACC}
474 STATIC = ${STATIC}
475 PREFIX = ${PREFIX}
476 BINDIR = ${BINDIR}
477 MANDIR = ${MANDIR}
478 INCLUDEDIR = ${INCLUDEDIR}
479 INSTALL = ${INSTALL}
480 INSTALL_PROGRAM = ${INSTALL_PROGRAM}
481 INSTALL_LIB = ${INSTALL_LIB}
482 INSTALL_MAN = ${INSTALL_MAN}
483 INSTALL_DATA = ${INSTALL_DATA}
485 COBJS = ${COBJS}
487 VERSION = ${VERSION}
489 __HEREDOC__
491 echo "file Makefile.local: written" 1>&2
492 echo "file Makefile.local: written" 1>&3
494 exit 0