mirror of
https://gitlab.isc.org/isc-projects/bind9
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87 lines
2.8 KiB
Plaintext
87 lines
2.8 KiB
Plaintext
dnl
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dnl Automated Testing Framework (atf)
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dnl
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dnl Copyright (c) 2008 The NetBSD Foundation, Inc.
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dnl All rights reserved.
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dnl
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dnl Redistribution and use in source and binary forms, with or without
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dnl modification, are permitted provided that the following conditions
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dnl are met:
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dnl 1. Redistributions of source code must retain the above copyright
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dnl notice, this list of conditions and the following disclaimer.
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dnl 2. Redistributions in binary form must reproduce the above copyright
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dnl notice, this list of conditions and the following disclaimer in the
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dnl documentation and/or other materials provided with the distribution.
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dnl
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dnl THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
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dnl CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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dnl INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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dnl IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
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dnl DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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dnl DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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dnl GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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dnl INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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dnl IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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dnl OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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dnl IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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dnl
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AC_DEFUN([ATF_MODULE_SIGNALS], [
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AC_CACHE_CHECK(
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[for the last valid signal],
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[kyua_cv_signal_lastno], [
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AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>], [
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int i;
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FILE *f;
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i = 0;
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while (i < 1024) {
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i++;
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if (i != SIGKILL && i != SIGSTOP) {
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struct sigaction sa;
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int ret;
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sa.sa_handler = SIG_IGN;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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ret = sigaction(i, &sa, NULL);
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if (ret == -1) {
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if (errno == EINVAL) {
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i--;
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break;
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} else
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err(EXIT_FAILURE, "sigaction failed");
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}
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}
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}
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if (i == 100)
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errx(EXIT_FAILURE, "too much signals");
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f = fopen("conftest.cnt", "w");
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if (f == NULL)
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err(EXIT_FAILURE, "failed to open file");
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fprintf(f, "%d\n", i);
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fclose(f);
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return EXIT_SUCCESS;
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])],
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[if test ! -f conftest.cnt; then
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kyua_cv_signal_lastno=15
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else
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kyua_cv_signal_lastno=$(cat conftest.cnt)
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rm -f conftest.cnt
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fi],
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[kyua_cv_signal_lastno=15])
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])
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AC_DEFINE_UNQUOTED([LAST_SIGNO], [${kyua_cv_signal_lastno}],
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[Define to the last valid signal number])
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])
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