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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Daniel Stenberg
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19
20#include "sprintf.h"
21#define ONE_KILOBYTE 1024
22#define ONE_MEGABYTE (1024*1024)
23
24/* The point of this function would be to return a string of the input data,
25 but never longer than 5 columns. Add suffix k and M when suitable...
26 Make sure to have space for 6 bytes in the buffer. 5 letters plus the
27 terminating zero byte. */
28char *num2max5(unsigned int bytes, char *max5)
29{
30 if(bytes < 100000) {
31 snprintf(max5, 6, "%5d", bytes);
32 return max5;
33 }
34 if(bytes < (9999*ONE_KILOBYTE)) {
35 snprintf(max5, 6, "%4dk", bytes/ONE_KILOBYTE);
36 return max5;
37 }
38 if(bytes < (100*ONE_MEGABYTE)) {
39 /* 'XX.XM' is good as long as we're less than 100 megs */
40 snprintf(max5, 6, "%2d.%0dM",
41 bytes/ONE_MEGABYTE,
42 (bytes%ONE_MEGABYTE)/(ONE_MEGABYTE/10) );
43 return max5;
44 }
45 snprintf(max5, 6, "%4dM", bytes/ONE_MEGABYTE);
46 return max5;
47}
48
49#ifdef TEST_MAX5
50int main(int argc, char **argv)
51{
52 char buffer[32];
53 if(argc>1) {
54 printf("%d => %s\n",
55 atoi(argv[1]),
56 num2max5(atoi(argv[1]), buffer));
57 }
58 return 0;
59}
60
61#endif