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authorXin LI <delphij@FreeBSD.org>2010-04-21 17:53:10 +0000
committerXin LI <delphij@FreeBSD.org>2010-04-21 17:53:10 +0000
commit7915ffb8ffcf218eff92927a23893dc8aa01830c (patch)
treeacadf0d2eca47daa7a656cf8954ad9cef849f7a1 /lib/strnlen.c
parentda2802fe8cbc451108a53a7267173a7c5d1b3df1 (diff)
downloadsrc-7915ffb8ffcf218eff92927a23893dc8aa01830c.tar.gz
src-7915ffb8ffcf218eff92927a23893dc8aa01830c.zip
Flattern tree.vendor/misc-GNU/sort
Notes
Notes: svn path=/vendor/gnu-sort/dist/; revision=207002
Diffstat (limited to 'lib/strnlen.c')
-rw-r--r--lib/strnlen.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/strnlen.c b/lib/strnlen.c
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+/* Find the length of STRING, but scan at most MAXLEN characters.
+ Copyright (C) 1996, 1997, 1998, 2000-2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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 2, 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, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef strnlen
+
+#include <string.h>
+
+#undef __strnlen
+#undef strnlen
+
+#ifndef _LIBC
+# define strnlen rpl_strnlen
+#endif
+
+#ifndef weak_alias
+# define __strnlen strnlen
+#endif
+
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ If no '\0' terminator is found in that many characters, return MAXLEN. */
+
+size_t
+__strnlen (const char *string, size_t maxlen)
+{
+ const char *end = memchr (string, '\0', maxlen);
+ return end ? (size_t) (end - string) : maxlen;
+}
+#ifdef weak_alias
+weak_alias (__strnlen, strnlen)
+#endif