1 files changed, 50 insertions, 0 deletions
diff --git a/plugins/sudoers/timestr.c b/plugins/sudoers/timestr.c
new file mode 100644
index 0000000..d208215
--- /dev/null
+++ b/plugins/sudoers/timestr.c
@@ -0,0 +1,50 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 1999, 2009-2011, 2013-2015, 2017
+ *	Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#include <time.h>
+
+#include "sudoers.h"
+
+/*
+ * Return a static buffer with the current date + time.
+ */
+char *
+get_timestr(time_t tstamp, int log_year)
+{
+    static char buf[128];
+    struct tm tm;
+    int len;
+
+    if (localtime_r(&tstamp, &tm) != NULL) {
+	/* strftime() does not guarantee to NUL-terminate so we must check. */
+	buf[sizeof(buf) - 1] = '\0';
+	len = strftime(buf, sizeof(buf), log_year ? "%h %e %T %Y" : "%h %e %T",
+	    &tm);
+	if (len != 0 && buf[sizeof(buf) - 1] == '\0')
+	    return buf;
+    }
+    return NULL;
+}