1 files changed, 63 insertions, 0 deletions
diff --git a/lib/libc/gen/psignal.c b/lib/libc/gen/psignal.c
new file mode 100644
index 000000000000..291a6a9337a0
--- /dev/null
+++ b/lib/libc/gen/psignal.c
@@ -0,0 +1,63 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Print the name of the signal indicated
+ * along with the supplied message.
+ */
+#include "namespace.h"
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+#include "un-namespace.h"
+
+void
+psignal(int sig, const char *s)
+{
+	const char *c;
+
+	if (sig >= 0 && sig < NSIG)
+		c = sys_siglist[sig];
+	else
+		c = "Unknown signal";
+	if (s != NULL && *s != '\0') {
+		(void)_write(STDERR_FILENO, s, strlen(s));
+		(void)_write(STDERR_FILENO, ": ", 2);
+	}
+	(void)_write(STDERR_FILENO, c, strlen(c));
+	(void)_write(STDERR_FILENO, "\n", 1);
+}
+
+void
+psiginfo(const siginfo_t *si, const char *s)
+{
+	psignal(si->si_signo, s);
+}