xref: /netbsd-src/external/mit/libuv/dist/src/strtok.c (revision 5f2f42719cd62ff11fd913b40b7ce19f07c4fd25)
1*5f2f4271Schristos /* Copyright libuv project contributors. All rights reserved.
2*5f2f4271Schristos  *
3*5f2f4271Schristos  * Permission is hereby granted, free of charge, to any person obtaining a copy
4*5f2f4271Schristos  * of this software and associated documentation files (the "Software"), to
5*5f2f4271Schristos  * deal in the Software without restriction, including without limitation the
6*5f2f4271Schristos  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7*5f2f4271Schristos  * sell copies of the Software, and to permit persons to whom the Software is
8*5f2f4271Schristos  * furnished to do so, subject to the following conditions:
9*5f2f4271Schristos  *
10*5f2f4271Schristos  * The above copyright notice and this permission notice shall be included in
11*5f2f4271Schristos  * all copies or substantial portions of the Software.
12*5f2f4271Schristos  *
13*5f2f4271Schristos  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14*5f2f4271Schristos  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15*5f2f4271Schristos  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16*5f2f4271Schristos  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17*5f2f4271Schristos  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18*5f2f4271Schristos  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19*5f2f4271Schristos  * IN THE SOFTWARE.
20*5f2f4271Schristos  */
21*5f2f4271Schristos 
22*5f2f4271Schristos #include <stdlib.h>
23*5f2f4271Schristos #include "strtok.h"
24*5f2f4271Schristos 
uv__strtok(char * str,const char * sep,char ** itr)25*5f2f4271Schristos char* uv__strtok(char* str, const char* sep, char** itr) {
26*5f2f4271Schristos   const char* sep_itr;
27*5f2f4271Schristos   char* tmp;
28*5f2f4271Schristos   char* start;
29*5f2f4271Schristos 
30*5f2f4271Schristos   if (str == NULL)
31*5f2f4271Schristos     start = tmp = *itr;
32*5f2f4271Schristos   else
33*5f2f4271Schristos     start = tmp = str;
34*5f2f4271Schristos 
35*5f2f4271Schristos   if (tmp == NULL)
36*5f2f4271Schristos     return NULL;
37*5f2f4271Schristos 
38*5f2f4271Schristos   while (*tmp != '\0') {
39*5f2f4271Schristos     sep_itr = sep;
40*5f2f4271Schristos     while (*sep_itr != '\0') {
41*5f2f4271Schristos       if (*tmp == *sep_itr) {
42*5f2f4271Schristos         *itr = tmp + 1;
43*5f2f4271Schristos         *tmp = '\0';
44*5f2f4271Schristos         return start;
45*5f2f4271Schristos       }
46*5f2f4271Schristos       sep_itr++;
47*5f2f4271Schristos     }
48*5f2f4271Schristos     tmp++;
49*5f2f4271Schristos   }
50*5f2f4271Schristos   *itr = NULL;
51*5f2f4271Schristos   return start;
52*5f2f4271Schristos }
53