kc3-lang/gnulib/lib/strnlen.c

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• Hash : 673458cf
  Author :
  Date : 2006-01-24T07:40:58
  

  Work around porting bugs reported by Dieter in
  <http://lists.gnu.org/archive/html/bug-bison/2006-01/msg00049.html>.
  * lib/getopt.c (_NOPROTO): Remove; no longer needed.
  Include <stdlib.h> and <unistd.h> in all environments; it's safe now.
  Include "getopt.h" first, to check interface.
  (getenv): Declare only if defined HAVE_DECL_GETENV &&
  !HAVE_DECL_GETENV.
  * lib/strndup.c [!_LIBC]: Include "strndup.h" to get prototype.
  (__strndup): Revert to K&R-style function dfns, the glibc style.
  * lib/strnlen.c: Don't claim it's taken from glibc; it's not.
  (strnlen, __strnlen): Remove #defines and #undefs; not needed.
  Include strnlen.h first, to get prototype properly.
  (strnlen): Renamed from __strnlen.
  Remove weak alias.
  * m4/getopt.m4 (gl_PREREQ_GETOPT): Check for getenv decl.
  

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• lib/strnlen.c

• /* Find the length of STRING, but scan at most MAXLEN characters.
     Copyright (C) 2005, 2006 Free Software Foundation, Inc.
     Written by Simon Josefsson.
  
     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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  #ifdef HAVE_CONFIG_H
  # include <config.h>
  #endif
  
  #include "strnlen.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 ? (size_t) (end - string) : maxlen;
  }
  

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