/*
 * $Id: strsep.c,v 1.1 2006/05/21 09:40:31 serassio Exp $
 */

/* Copyright (C) 2004 Free Software Foundation, Inc.
 * Written by Yoann Vandoorselaere <yoann@prelude-ids.org>
 *
 * The file is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This file 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this file; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

/* Specification.  */
#include "strsep.h"

#include <string.h>

char *
strsep (char **stringp, const char *delim)
{
  char *start = *stringp;
  char *ptr;

  if (!start)
    return NULL;

  if (!*delim)
    ptr = start + strlen (start);
  else
    {
      ptr = strpbrk (start, delim);
      if (!ptr)
	{
	  *stringp = NULL;
	  return start;
	}
    }

  *ptr = '\0';
  *stringp = ptr + 1;

  return start;
}