1 /* opkg_utils.c - the opkg package management system
5 Copyright (C) 2002 Compaq Computer Corporation
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2, or (at
10 your option) any later version.
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
19 #include <sys/statvfs.h>
21 #include "libbb/libbb.h"
22 #include "opkg_utils.h"
24 unsigned long get_available_kbytes(char *filesystem
)
28 if (statvfs(filesystem
, &f
) == -1) {
29 opkg_perror(ERROR
, "Failed to statvfs for %s", filesystem
);
32 // Actually ((sfs.f_bavail * sfs.f_frsize) / 1024)
33 // and here we try to avoid overflow.
34 if (f
.f_frsize
>= 1024)
35 return (f
.f_bavail
* (f
.f_frsize
/ 1024));
36 else if (f
.f_frsize
> 0)
37 return f
.f_bavail
/ (1024 / f
.f_frsize
);
39 opkg_msg(ERROR
, "Unknown block size for target filesystem.\n");
44 /* something to remove whitespace, a hash pooper */
45 char *trim_xstrdup(const char *src
)
49 /* remove it from the front */
50 while (src
&& isspace(*src
) && *src
)
53 end
= src
+ (strlen(src
) - 1);
55 /* and now from the back */
56 while ((end
> src
) && isspace(*end
))
61 /* xstrndup will NULL terminate for us */
62 return xstrndup(src
, end
- src
);
65 int line_is_blank(const char *line
)
69 for (s
= line
; *s
; s
++) {