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authorperry <perry@NetBSD.org>2009-05-01 17:27:01 +0000
committerperry <perry@NetBSD.org>2009-05-01 17:27:01 +0000
commitbe11851995d64eb0fdb4138fd10ea6b1b28ffd67 (patch)
tree0b2a3633a2e1f335b9a8d2414d40a8dff4c7a97f /lib/libc/string/strnlen.c
parentbdb0c5fb32d7e4d0c72e7d87864e0b53748bbbaf (diff)
Add versions of stpcpy(3), stpncpy(3), strnlen(3), all from FreeBSD.
These are defined in the latest POSIX Also make related updates to documentation, mostly from FreeBSD, though I cleaned a few other things up along the way. Bump shlib_version. We are still missing strcoll_l, strerror_l, strsignal, strxfrm_l to be POSIX conformant.
Diffstat (limited to 'lib/libc/string/strnlen.c')
-rw-r--r--lib/libc/string/strnlen.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/libc/string/strnlen.c b/lib/libc/string/strnlen.c
new file mode 100644
index 00000000000..8342828b14b
--- /dev/null
+++ b/lib/libc/string/strnlen.c
@@ -0,0 +1,47 @@
+/* $NetBSD: strnlen.c,v 1.1 2009/05/01 17:27:01 perry 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 2009/05/01 17:27:01 perry 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 */
+
+#include <string.h>
+
+size_t
+strnlen(const char *s, size_t maxlen)
+{
+ size_t len;
+
+ for (len = 0; len < maxlen; len++, s++) {
+ if (!*s)
+ break;
+ }
+ return (len);
+}