1 files changed, 53 insertions, 0 deletions
diff --git a/lib/sig2str.h b/lib/sig2str.h
new file mode 100644
index 0000000..1e52536
--- /dev/null
+++ b/lib/sig2str.h
@@ -0,0 +1,53 @@
+/* sig2str.h -- convert between signal names and numbers
+
+   Copyright (C) 2002, 2005, 2009-2023 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Paul Eggert.  */
+
+#include <signal.h>
+
+/* Don't override system declarations of SIG2STR_MAX, sig2str, str2sig.  */
+#ifndef SIG2STR_MAX
+
+# include "intprops.h"
+
+/* Size of a buffer needed to hold a signal name like "HUP".  */
+# define SIG2STR_MAX (sizeof "SIGRTMAX" + INT_STRLEN_BOUND (int) - 1)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int sig2str (int, char *);
+int str2sig (char const *, int *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+/* An upper bound on signal numbers allowed by the system.  */
+
+#if defined _sys_nsig
+# define SIGNUM_BOUND (_sys_nsig - 1)
+#elif defined _SIG_MAXSIG
+# define SIGNUM_BOUND (_SIG_MAXSIG - 2) /* FreeBSD >= 7.  */
+#elif defined NSIG
+# define SIGNUM_BOUND (NSIG - 1)
+#else
+# define SIGNUM_BOUND 64
+#endif