1/* Copyright (C) 1996-2022 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 <argz.h>
19#include <errno.h>
20#include <stdlib.h>
21#include <string.h>
22
23
24error_t
25__argz_create_sep (const char *string, int delim, char **argz, size_t *len)
26{
27 size_t nlen = strlen (string) + 1;
28
29 if (nlen > 1)
30 {
31 const char *rp;
32 char *wp;
33
34 *argz = (char *) malloc (nlen);
35 if (*argz == NULL)
36 return ENOMEM;
37
38 rp = string;
39 wp = *argz;
40 do
41 if (*rp == delim)
42 {
43 if (wp > *argz && wp[-1] != '\0')
44 *wp++ = '\0';
45 else
46 --nlen;
47 }
48 else
49 *wp++ = *rp;
50 while (*rp++ != '\0');
51
52 if (nlen == 0)
53 {
54 free (*argz);
55 *argz = NULL;
56 *len = 0;
57 }
58
59 *len = nlen;
60 }
61 else
62 {
63 *argz = NULL;
64 *len = 0;
65 }
66
67 return 0;
68}
69weak_alias (__argz_create_sep, argz_create_sep)
70