1 /* Copyright (C) 1992-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <string.h>
19
20 #undef __strsep
21 #undef strsep
22
23 char *
__strsep(char ** stringp,const char * delim)24 __strsep (char **stringp, const char *delim)
25 {
26 char *begin, *end;
27
28 begin = *stringp;
29 if (begin == NULL)
30 return NULL;
31
32 /* Find the end of the token. */
33 end = begin + strcspn (begin, delim);
34
35 if (*end)
36 {
37 /* Terminate the token and set *STRINGP past NUL character. */
38 *end++ = '\0';
39 *stringp = end;
40 }
41 else
42 /* No more delimiters; this is the last token. */
43 *stringp = NULL;
44
45 return begin;
46 }
47 weak_alias (__strsep, strsep)
48 strong_alias (__strsep, __strsep_g)
49 libc_hidden_def (__strsep)
50 libc_hidden_def (__strsep_g)
51