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authorJim Meyering <jim@meyering.net>2000-05-04 06:34:23 +0000
committerJim Meyering <jim@meyering.net>2000-05-04 06:34:23 +0000
commitcea745beaa31c519aeafd58f127383a38ab92c78 (patch)
tree62ae1da9eb351c7bda0bf267bf9abfdf97f3eba9 /lib
parent647d5e6a70772366dd65372546ee2799822dc6da (diff)
downloadcoreutils-cea745beaa31c519aeafd58f127383a38ab92c78.tar.xz
New file, from glibc.
Diffstat (limited to 'lib')
-rw-r--r--lib/strnlen.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/strnlen.c b/lib/strnlen.c
new file mode 100644
index 000000000..a2fcf73d7
--- /dev/null
+++ b/lib/strnlen.c
@@ -0,0 +1,33 @@
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <string.h>
+
+/* 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 ? end - string : maxlen;
+}
+#ifdef weak_alias
+weak_alias (__strnlen, strnlen)
+#endif