1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/* $OpenBSD: path.c,v 1.8 2019/12/17 17:16:32 guenther Exp $ */
/*
* Copyright (c) 2013 Kurt Miller <kurt@intricatesoftware.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include "path.h"
#include "util.h"
char **
_dl_split_path(const char *searchpath)
{
int pos = 0;
int count = 1;
const char *pp, *p_begin;
char **retval;
if (searchpath == NULL)
return (NULL);
/* Count ':' or ';' in searchpath */
pp = searchpath;
while (*pp) {
if (*pp == ':' || *pp == ';')
count++;
pp++;
}
/* one more for NULL entry */
count++;
retval = _dl_reallocarray(NULL, count, sizeof(*retval));
if (retval == NULL)
_dl_oom();
pp = searchpath;
while (pp) {
p_begin = pp;
while (*pp != '\0' && *pp != ':' && *pp != ';')
pp++;
if (p_begin != pp) {
retval[pos] = _dl_malloc(pp - p_begin + 1);
if (retval[pos] == NULL)
_dl_oom();
_dl_bcopy(p_begin, retval[pos], pp - p_begin);
retval[pos++][pp - p_begin] = '\0';
}
if (*pp)
pp++;
else
pp = NULL;
}
retval[pos] = NULL;
return (retval);
}
void
_dl_free_path(char **path)
{
char **p = path;
if (path == NULL)
return;
while (*p != NULL)
_dl_free(*p++);
_dl_free(path);
}
|
