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      1 /* Copyright libuv project contributors. All rights reserved.
      2  *
      3  * Permission is hereby granted, free of charge, to any person obtaining a copy
      4  * of this software and associated documentation files (the "Software"), to
      5  * deal in the Software without restriction, including without limitation the
      6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
      7  * sell copies of the Software, and to permit persons to whom the Software is
      8  * furnished to do so, subject to the following conditions:
      9  *
     10  * The above copyright notice and this permission notice shall be included in
     11  * all copies or substantial portions of the Software.
     12  *
     13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     19  * IN THE SOFTWARE.
     20  */
     21 
     22 #include <stdlib.h>
     23 #include "strtok.h"
     24 
     25 char* uv__strtok(char* str, const char* sep, char** itr) {
     26   const char* sep_itr;
     27   char* tmp;
     28   char* start;
     29 
     30   if (str == NULL)
     31     start = tmp = *itr;
     32   else
     33     start = tmp = str;
     34 
     35   if (tmp == NULL)
     36     return NULL;
     37 
     38   while (*tmp != '\0') {
     39     sep_itr = sep;
     40     while (*sep_itr != '\0') {
     41       if (*tmp == *sep_itr) {
     42         *itr = tmp + 1;
     43         *tmp = '\0';
     44         return start;
     45       }
     46       sep_itr++;
     47     }
     48     tmp++;
     49   }
     50   *itr = NULL;
     51   return start;
     52 }
     53