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-rw-r--r--lib/util/strndup.c56
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diff --git a/lib/util/strndup.c b/lib/util/strndup.c
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+/* $OpenBSD: strndup.c,v 1.1 2010/05/18 22:24:55 tedu Exp $ */
+
+/*
+ * Copyright (c) 2010 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>
+
+#ifndef HAVE_STRNDUP
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+
+#include "sudo_compat.h"
+
+char *
+sudo_strndup(const char *str, size_t maxlen)
+{
+ char *copy;
+ size_t len;
+
+ len = strnlen(str, maxlen);
+ copy = malloc(len + 1);
+ if (copy != NULL) {
+ (void)memcpy(copy, str, len);
+ copy[len] = '\0';
+ }
+
+ return copy;
+}
+
+#endif /* HAVE_STRNDUP */