1 files changed, 93 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/gen/common/ssignal.c b/usr/src/lib/libbc/libc/gen/common/ssignal.c
new file mode 100644
index 0000000000..8becd84fd5
--- /dev/null
+++ b/usr/src/lib/libbc/libc/gen/common/ssignal.c
@@ -0,0 +1,93 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 1987 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*      Copyright (c) 1984 AT&T */
+/*        All Rights Reserved   */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"  /* from S5R2 1.2 */
+
+/*LINTLIBRARY*/
+/*
+ *	ssignal, gsignal: software signals
+ */
+#include <signal.h>
+
+/* Highest allowable user signal number */
+#define	MAXSIG NSIG
+
+/* Lowest allowable signal number (lowest user number is always 1) */
+#define	MINSIG (-4)
+
+/* Table of signal values */
+typedef int (*sigfunc)();
+sigfunc *ssigp;
+
+
+sigfunc *
+_ssig()
+{
+	if (ssigp == 0)
+		ssigp = (sigfunc *)calloc(MAXSIG-MINSIG+1, sizeof (sigfunc));
+	return (ssigp);
+}
+
+int
+(*ssignal(sig, fn))()
+register int sig, (*fn)();
+{
+	register int (*savefn)();
+	register sigfunc *sp = _ssig();
+
+	if (sp == 0)
+		return ((int (*)())SIG_DFL);
+	if (sig >= MINSIG && sig <= MAXSIG) {
+		savefn = sp[sig-MINSIG];
+		sp[sig-MINSIG] = fn;
+	} else
+		savefn = (int (*)())SIG_DFL;
+
+	return (savefn);
+}
+
+int
+gsignal(sig)
+register int sig;
+{
+	register int (*sigfn)();
+	register sigfunc *sp = _ssig();
+
+	if (sp == 0)
+		return (0);
+	if (sig < MINSIG || sig > MAXSIG ||
+				(sigfn = sp[sig-MINSIG]) == (int (*)())SIG_DFL)
+		return (0);
+	else if (sigfn == (int (*)())SIG_IGN)
+		return (1);
+	else {
+		sp[sig-MINSIG] = (int (*)())SIG_DFL;
+		return ((*sigfn)(sig));
+	}
+}