From c43b80e61df1aeb6d7872d89baa35a28dd05bd40 Mon Sep 17 00:00:00 2001 From: Claudio Fontana Date: Tue, 1 Nov 2005 09:38:51 +0000 Subject: *** empty log message *** --- lib/strnlen1.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 lib/strnlen1.c (limited to 'lib/strnlen1.c') diff --git a/lib/strnlen1.c b/lib/strnlen1.c new file mode 100644 index 0000000..f3338e7 --- /dev/null +++ b/lib/strnlen1.c @@ -0,0 +1,39 @@ +/* Find the length of STRING + 1, but scan at most MAXLEN bytes. + Copyright (C) 2005 Free Software Foundation, Inc. + + This program 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, 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +/* Specification. */ +#include "strnlen1.h" + +#include + +/* Find the length of STRING + 1, but scan at most MAXLEN bytes. + If no '\0' terminator is found in that many characters, return MAXLEN. */ +/* This is the same as strnlen (string, maxlen - 1) + 1. */ +size_t +strnlen1 (const char *string, size_t maxlen) +{ + const char *end = memchr (string, '\0', maxlen); + if (end != NULL) + return end - string + 1; + else + return maxlen; +} -- cgit v1.2.3