strl.c

/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
 *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
 *
 *  Some code herein may be based on code found in BSNES.
 * 
 *  SSNES 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 Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  SSNES 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 SSNES.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#include "strl.h"

#ifndef HAVE_STRL
// Implementation of strlcpy()/strlcat() based on OpenBSD.

size_t strlcpy(char *dest, const char *source, size_t size)
{
   size_t src_size = 0;
   size_t n = size;

   if (n)
      while (--n && (*dest++ = *source++)) src_size++;

   if (!n)
   {
      if (size) *dest = '\0';
      while (*source++) src_size++;
   }

   return src_size;
}

size_t strlcat(char *dest, const char *source, size_t size)
{
   size_t len = strlen(dest);
   dest += len;

   if (len > size)
      size = 0;
   else
      size -= len;

   return len + strlcpy(dest, source, size);
}
#endif