blob: 81298730b4452f58befb4cbd4ffcc326661a1814 (
plain)
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
|
/* vi: set sw=4 ts=4: */
/*
* dirname implementation for busybox (for libc's missing one)
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* Note: The previous busybox implementation did not handle NULL path
* and also moved a pointer before path, which is not portable in C.
* So I replaced it with my uClibc version.
*/
#include <string.h>
#include "libbb.h"
#if __GNU_LIBRARY__ < 5
extern
char *dirname(char *path)
{
static const char null_or_empty_or_noslash[] = ".";
register char *s;
register char *last;
char *first;
last = s = path;
if (s != NULL) {
LOOP:
while (*s && (*s != '/')) ++s;
first = s;
while (*s == '/') ++s;
if (*s) {
last = first;
goto LOOP;
}
if (last == path) {
if (*last != '/') {
goto DOT;
}
if ((*++last == '/') && (last[1] == 0)) {
++last;
}
}
*last = 0;
return path;
}
DOT:
return (char *) null_or_empty_or_noslash;
}
#endif
|
