openpkg/patch.strnlen.c

Mon, 28 Jan 2013 17:37:18 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Mon, 28 Jan 2013 17:37:18 +0100
changeset 758
a2c6460cfb16
permissions
-rw-r--r--

Correct socket error reporting improvement with IPv6 portable code,
after helpful recommendation by Saúl Ibarra Corretgé on OSips devlist.

     1 /* Find the length of STRING, but scan at most MAXLEN characters.
     2    Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
     3    Written by Simon Josefsson.
     5    This program is free software; you can redistribute it and/or modify
     6    it under the terms of the GNU General Public License as published by
     7    the Free Software Foundation; either version 2, or (at your option)
     8    any later version.
    10    This program is distributed in the hope that it will be useful,
    11    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13    GNU General Public License for more details.
    15    You should have received a copy of the GNU General Public License
    16    along with this program; if not, write to the Free Software Foundation,
    17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
    19 #include <config.h>
    21 #include <string.h>
    23 /* Find the length of STRING, but scan at most MAXLEN characters.
    24    If no '\0' terminator is found in that many characters, return MAXLEN.  */
    26 size_t
    27 strnlen (const char *string, size_t maxlen)
    28 {
    29   const char *end = memchr (string, '\0', maxlen);
    30   return end ? (size_t) (end - string) : maxlen;
    31 }

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