app/strlcpy.c

   1 /*
   2  * Lightweight Autonomic Network Architecture
   3  * Copyright 2011 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,
   4  * Swiss federal institute of technology (ETH Zurich)
   5  * Subject to the GPL.
   6  */
   7
   8 /*
   9  * Copyright (C) 1991, 1992  Linus Torvalds
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or (at
  14  * your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  18  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  19  * for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
  24  */
  25
  26 #include <string.h>
  27
  28 #include "strlcpy.h"
  29
  30 size_t strlcpy(char *dest, const char *src, size_t size)
  31 {
  32         size_t ret = strlen(src);
  33
  34         if (size) {
  35                 size_t len = (ret >= size) ? size - 1 : ret;
  36                 memcpy(dest, src, len);
  37                 dest[len] = '\0';
  38         }
  39
  40         return ret;
  41 }