1 | /*************************************************************************** |
2 | * _ _ ____ _ |
3 | * Project ___| | | | _ \| | |
4 | * / __| | | | |_) | | |
5 | * | (__| |_| | _ <| |___ |
6 | * \___|\___/|_| \_\_____| |
7 | * |
8 | * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. |
9 | * |
10 | * This software is licensed as described in the file COPYING, which |
11 | * you should have received as part of this distribution. The terms |
12 | * are also available at https://curl.haxx.se/docs/copyright.html. |
13 | * |
14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
15 | * copies of the Software, and permit persons to whom the Software is |
16 | * furnished to do so, under the terms of the COPYING file. |
17 | * |
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
19 | * KIND, either express or implied. |
20 | * |
21 | ***************************************************************************/ |
22 | |
23 | #include "curl_setup.h" |
24 | |
25 | #ifndef HAVE_STRTOK_R |
26 | #include <stddef.h> |
27 | |
28 | #include "strtok.h" |
29 | |
30 | char * |
31 | Curl_strtok_r(char *ptr, const char *sep, char **end) |
32 | { |
33 | if(!ptr) |
34 | /* we got NULL input so then we get our last position instead */ |
35 | ptr = *end; |
36 | |
37 | /* pass all letters that are including in the separator string */ |
38 | while(*ptr && strchr(sep, *ptr)) |
39 | ++ptr; |
40 | |
41 | if(*ptr) { |
42 | /* so this is where the next piece of string starts */ |
43 | char *start = ptr; |
44 | |
45 | /* set the end pointer to the first byte after the start */ |
46 | *end = start + 1; |
47 | |
48 | /* scan through the string to find where it ends, it ends on a |
49 | null byte or a character that exists in the separator string */ |
50 | while(**end && !strchr(sep, **end)) |
51 | ++*end; |
52 | |
53 | if(**end) { |
54 | /* the end is not a null byte */ |
55 | **end = '\0'; /* zero terminate it! */ |
56 | ++*end; /* advance the last pointer to beyond the null byte */ |
57 | } |
58 | |
59 | return start; /* return the position where the string starts */ |
60 | } |
61 | |
62 | /* we ended up on a null byte, there are no more strings to find! */ |
63 | return NULL; |
64 | } |
65 | |
66 | #endif /* this was only compiled if strtok_r wasn't present */ |
67 | |