src/strlcpy.c

   1 /*
   2  * transsip - the telephony network
   3  * By Daniel Borkmann <daniel@transsip.org>
   4  * Copyright 2011 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,
   5  * Swiss federal institute of technology (ETH Zurich)
   6  * Subject to the GPL, version 2.
   7  */
   8
   9 /*
  10  * Copyright (C) 1991, 1992  Linus Torvalds
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or (at
  15  * your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  19  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  20  * for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
  25  */
  26
  27 #include <string.h>
  28
  29 #include "strlcpy.h"
  30
  31 size_t strlcpy(char *dest, const char *src, size_t size)
  32 {
  33         size_t ret = strlen(src);
  34
  35         if (size) {
  36                 size_t len = (ret >= size) ? size - 1 : ret;
  37                 memcpy(dest, src, len);
  38                 dest[len] = '\0';
  39         }
  40
  41         return ret;
  42 }