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-rw-r--r--openbsd-compat/sigact.c132
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diff --git a/openbsd-compat/sigact.c b/openbsd-compat/sigact.c
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+/* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */
+
+/****************************************************************************
+ * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ ****************************************************************************/
+
+/* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */
+
+#include "includes.h"
+#include <errno.h>
+#include <signal.h>
+#include "sigact.h"
+
+/* This file provides sigaction() emulation using sigvec() */
+/* Use only if this is non POSIX system */
+
+#if !HAVE_SIGACTION && HAVE_SIGVEC
+
+int
+sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
+{
+ return sigvec(sig, sigact ? &sigact->sv : NULL,
+ osigact ? &osigact->sv : NULL);
+}
+
+int
+sigemptyset (sigset_t *mask)
+{
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+ *mask = 0;
+ return 0;
+}
+
+int
+sigprocmask (int mode, sigset_t *mask, sigset_t *omask)
+{
+ sigset_t current = sigsetmask(0);
+
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (omask)
+ *omask = current;
+
+ if (mode == SIG_BLOCK)
+ current |= *mask;
+ else if (mode == SIG_UNBLOCK)
+ current &= ~*mask;
+ else if (mode == SIG_SETMASK)
+ current = *mask;
+
+ sigsetmask(current);
+ return 0;
+}
+
+int
+sigsuspend (sigset_t *mask)
+{
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+ return sigpause(*mask);
+}
+
+int
+sigdelset (sigset_t *mask, int sig)
+{
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+ *mask &= ~sigmask(sig);
+ return 0;
+}
+
+int
+sigaddset (sigset_t *mask, int sig)
+{
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+ *mask |= sigmask(sig);
+ return 0;
+}
+
+int
+sigismember (sigset_t *mask, int sig)
+{
+ if (!mask) {
+ errno = EINVAL;
+ return -1;
+ }
+ return (*mask & sigmask(sig)) != 0;
+}
+
+#endif