| 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2007, Daniel Stenberg, <[email protected]>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 |
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| 23 | #include "curl_setup.h"
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| 24 |
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| 25 | #ifndef HAVE_STRTOK_R
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| 26 | #include <stddef.h>
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| 27 |
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| 28 | #include "strtok.h"
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| 29 |
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| 30 | char *
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| 31 | Curl_strtok_r(char *ptr, const char *sep, char **end)
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| 32 | {
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| 33 | if(!ptr)
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| 34 | /* we got NULL input so then we get our last position instead */
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| 35 | ptr = *end;
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| 36 |
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| 37 | /* pass all letters that are including in the separator string */
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| 38 | while(*ptr && strchr(sep, *ptr))
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| 39 | ++ptr;
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| 40 |
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| 41 | if(*ptr) {
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| 42 | /* so this is where the next piece of string starts */
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| 43 | char *start = ptr;
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| 44 |
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| 45 | /* set the end pointer to the first byte after the start */
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| 46 | *end = start + 1;
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| 47 |
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| 48 | /* scan through the string to find where it ends, it ends on a
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| 49 | null byte or a character that exists in the separator string */
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| 50 | while(**end && !strchr(sep, **end))
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| 51 | ++*end;
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| 52 |
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| 53 | if(**end) {
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| 54 | /* the end is not a null byte */
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| 55 | **end = '\0'; /* zero terminate it! */
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| 56 | ++*end; /* advance the last pointer to beyond the null byte */
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| 57 | }
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| 58 |
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| 59 | return start; /* return the position where the string starts */
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| 60 | }
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| 61 |
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| 62 | /* we ended up on a null byte, there are no more strings to find! */
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| 63 | return NULL;
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| 64 | }
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| 65 |
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| 66 | #endif /* this was only compiled if strtok_r wasn't present */
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