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authorjym <jym@NetBSD.org>2011-09-01 22:35:17 +0000
committerjym <jym@NetBSD.org>2011-09-01 22:35:17 +0000
commit7ba89c6e6e1ce8115bb2b995a6bb8eab49aaba24 (patch)
treeae35f1ae0b6db95c0efa38897aa887fde632f0a3 /common/lib/libc/string
parentdaab88178ec26f4a03c0d412343c3ce84b5c8dbf (diff)
Make strnlen(3) accessible in kernel. ok christos@.
Diffstat (limited to 'common/lib/libc/string')
-rw-r--r--common/lib/libc/string/strnlen.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/common/lib/libc/string/strnlen.c b/common/lib/libc/string/strnlen.c
new file mode 100644
index 00000000000..b0fba9afae0
--- /dev/null
+++ b/common/lib/libc/string/strnlen.c
@@ -0,0 +1,51 @@
+/* $NetBSD: strnlen.c,v 1.1 2011/09/01 22:35:18 jym Exp $ */
+
+/*-
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: strnlen.c,v 1.1 2011/09/01 22:35:18 jym Exp $");
+#endif /* LIBC_SCCS and not lint */
+/* FreeBSD: src/lib/libc/string/strnlen.c,v 1.1 2009/02/28 06:00:58 das Exp */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+size_t
+strnlen(const char *s, size_t maxlen)
+{
+ size_t len;
+
+ for (len = 0; len < maxlen; len++, s++) {
+ if (!*s)
+ break;
+ }
+ return (len);
+}