lib/strnlen.h

   1 /* Find the length of STRING, but scan at most MAXLEN characters.
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3    Written by Simon Josefsson.
   4
   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.
   9
  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.
  14
  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.  */
  18
  19 #ifndef STRNLEN_H
  20 #define STRNLEN_H
  21
  22 /* Get strnlen declaration, if available.  */
  23 #include <string.h>
  24
  25 #if defined HAVE_DECL_STRNLEN && !HAVE_DECL_STRNLEN
  26 /* Find the length (number of bytes) of STRING, but scan at most
  27    MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
  28    return MAXLEN.  */
  29 extern size_t strnlen(const char *string, size_t maxlen);
  30 #endif
  31
  32 #endif /* STRNLEN_H */