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
87
88
89
90
91
92
93
94
95
|
/* vi: set expandtab sw=4 sts=4: */
/* opkg_utils.c - the opkg package management system
Steven M. Ayer
Copyright (C) 2002 Compaq Computer Corporation
SPDX-License-Identifier: GPL-2.0-or-later
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, 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.
*/
#include "config.h"
#include <ctype.h>
#include <sys/statvfs.h>
#include <string.h>
#include "opkg_message.h"
#include "xfuncs.h"
unsigned long get_available_kbytes(char *filesystem)
{
struct statvfs f;
int r;
r = statvfs(filesystem, &f);
if (r == -1) {
opkg_perror(ERROR, "Failed to statvfs for %s", filesystem);
return 0;
}
// Actually ((sfs.f_bavail * sfs.f_frsize) / 1024)
// and here we try to avoid overflow.
if (f.f_frsize >= 1024)
return (f.f_bavail * (f.f_frsize / 1024));
else if (f.f_frsize > 0)
return f.f_bavail / (1024 / f.f_frsize);
opkg_msg(ERROR, "Unknown block size for target filesystem.\n");
return 0;
}
/* something to remove whitespace, a hash pooper */
char *trim_xstrdup(const char *src)
{
const char *end;
/* remove it from the front */
while (src && isspace(*src) && *src)
src++;
end = src + (strlen(src) - 1);
/* and now from the back */
while ((end > src) && isspace(*end))
end--;
end++;
/* xstrndup will NULL terminate for us */
return xstrndup(src, end - src);
}
int line_is_blank(const char *line)
{
const char *s;
for (s = line; *s; s++) {
if (!isspace(*s))
return 0;
}
return 1;
}
int str_starts_with(const char *str, const char *prefix)
{
return (strncmp(str, prefix, strlen(prefix)) == 0);
}
int is_str_glob(const char *str)
{
/* Following POSIX, a string is a wildcard pattern if it contains '*', '?'
* or '['
*/
return strchr(str, '*') || strchr(str, '?') || strchr(str, '[');
}
|