/*-
 * Copyright (c) 2002-2018 The UbixOS Project.
 * All rights reserved.
 *
 * This was developed by Christopher W. Olsen for the UbixOS Project.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 * 1) Redistributions of source code must retain the above copyright notice, this list of
 *    conditions, the following disclaimer and the list of authors.
 * 2) Redistributions in binary form must reproduce the above copyright notice, this list of
 *    conditions, the following disclaimer and the list of authors in the documentation and/or
 *    other materials provided with the distribution.
 * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
 *    endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <lib/string.h>
#include <sys/types.h>

char *strtok_r(char *s, const char *delim, char **last) {
  char *spanp;
  int c, sc;
  char *tok;

  if ((s == NULL) && ((s = *last) == NULL)) {
    return (NULL);
  }

  cont: c = *s++;
  for (spanp = (char *) delim; (sc = *spanp++) != 0;) {
    if (c == sc) {
      goto cont;
    }
  }
  if (c == 0) {
    *last = NULL;
    return (NULL);
  }
  tok = s - 1;

  for (;;) {
    c = *s++;
    spanp = (char *) delim;
    do {
      if ((sc = *spanp++) == c) {
        if (c == 0) {
          s = NULL;
        }
        else {
          char *w = s - 1;
          *w = '\0';
        }
        *last = s;
        return (tok);
      }
    } while (sc != 0);
  }
}

char *strtok(char *s, const char *delim) {
  static char *last;
  return (strtok_r(s, delim, &last));
}

/***
 $Log: strtok.c,v $
 Revision 1.1.1.1  2006/06/01 12:46:16  reddawg
 ubix2

 Revision 1.2  2005/10/12 00:13:37  reddawg
 Removed

 Revision 1.1.1.1  2005/09/26 17:24:13  reddawg
 no message

 Revision 1.2  2004/05/19 03:46:32  reddawg
 A Few Quick Hacks To Make Things Work

 Revision 1.1.1.1  2004/04/15 12:07:11  reddawg
 UbixOS v1.0

 Revision 1.2  2004/04/13 16:36:33  reddawg
 Changed our copyright, it is all now under a BSD-Style license

 END
 ***/