crypto/external/bsd/heimdal/dist/lib/roken/strtok_r.c

   1 /*      $NetBSD: strtok_r.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $   */
   2
   3 /*
   4  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <config.h>
  37
  38 #include <string.h>
  39
  40 #include <krb5/roken.h>
  41
  42 #ifndef HAVE_STRTOK_R
  43
  44 ROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL
  45 strtok_r(char *s1, const char *s2, char **lasts)
  46 {
  47   char *ret;
  48
  49   if (s1 == NULL)
  50     s1 = *lasts;
  51   while(*s1 && strchr(s2, *s1))
  52     ++s1;
  53   if(*s1 == '\0')
  54     return NULL;
  55   ret = s1;
  56   while(*s1 && !strchr(s2, *s1))
  57     ++s1;
  58   if(*s1)
  59     *s1++ = '\0';
  60   *lasts = s1;
  61   return ret;
  62 }
  63
  64 #endif /* HAVE_STRTOK_R */