1 files changed, 80 insertions, 0 deletions
diff --git a/include/ac/signal.h b/include/ac/signal.h
new file mode 100644
index 0000000..1c7293b
--- /dev/null
+++ b/include/ac/signal.h
@@ -0,0 +1,80 @@
+/* Generic signal.h */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#ifndef _AC_SIGNAL_H
+#define _AC_SIGNAL_H
+
+#include <signal.h>
+
+#undef SIGNAL
+
+#if defined( HAVE_SIGACTION )
+#define SIGNAL lutil_sigaction
+typedef void (*lutil_sig_t)(int);
+LDAP_LUTIL_F(lutil_sig_t) lutil_sigaction( int sig, lutil_sig_t func );
+#define SIGNAL_REINSTALL(sig,act)	(void)0
+#elif defined( HAVE_SIGSET )
+#define SIGNAL sigset
+#define SIGNAL_REINSTALL sigset
+#else
+#define SIGNAL signal
+#define SIGNAL_REINSTALL signal
+#endif
+
+#if !defined( LDAP_SIGUSR1 ) || !defined( LDAP_SIGUSR2 )
+#undef LDAP_SIGUSR1
+#undef LDAP_SIGUSR2
+
+#	if defined(WINNT) || defined(_WINNT) || defined(_WIN32)
+#		define LDAP_SIGUSR1	SIGILL
+#		define LDAP_SIGUSR2	SIGTERM
+
+#	elif !defined(HAVE_LINUX_THREADS)
+#		define LDAP_SIGUSR1	SIGUSR1
+#		define LDAP_SIGUSR2	SIGUSR2
+
+#	else
+		/*
+		 * Some versions of LinuxThreads unfortunately uses the only
+		 * two signals reserved for user applications.  This forces
+		 * OpenLDAP to use other signals reserved for other uses.
+		 */
+
+#		if defined( SIGSTKFLT )
+#			define LDAP_SIGUSR1	SIGSTKFLT
+#		elif defined ( SIGSYS )
+#			define LDAP_SIGUSR1	SIGSYS
+#		endif
+
+#		if defined( SIGUNUSED )
+#			define LDAP_SIGUSR2	SIGUNUSED
+#		elif defined ( SIGINFO )
+#			define LDAP_SIGUSR2	SIGINFO
+#		elif defined ( SIGEMT )
+#			define LDAP_SIGUSR2	SIGEMT
+#		endif
+#	endif
+#endif
+
+#ifndef LDAP_SIGCHLD
+#ifdef SIGCHLD
+#define LDAP_SIGCHLD SIGCHLD
+#elif SIGCLD
+#define LDAP_SIGCHLD SIGCLD
+#endif
+#endif
+
+#endif /* _AC_SIGNAL_H */