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authorMatt Kraai <kraai@debian.org>2001-03-28 16:42:27 +0000
committerMatt Kraai <kraai@debian.org>2001-03-28 16:42:27 +0000
commit7cd0cfeab696a4e5b2794dd66541b6d2a6cc3663 (patch)
tree8733711c52f6dd894aa6bf955b295aae5149aa8d /libbb
parentf957c779104d187a035b48d1fb9ce9acb7351001 (diff)
downloadbusybox-7cd0cfeab696a4e5b2794dd66541b6d2a6cc3663.tar.gz
Rewrite to fix bug #1140 and make it slightly smaller.
Diffstat (limited to 'libbb')
-rw-r--r--libbb/human_readable.c40
1 files changed, 14 insertions, 26 deletions
diff --git a/libbb/human_readable.c b/libbb/human_readable.c
index ff2175175..1d7a90e55 100644
--- a/libbb/human_readable.c
+++ b/libbb/human_readable.c
@@ -28,35 +28,23 @@
#include <stdio.h>
#include "libbb.h"
-
+static char buffer[10];
+static const char *suffixes[] = { "", "k", "M", "G", "T" };
const char *make_human_readable_str(unsigned long val, unsigned long hr)
{
- int i=0;
- static char str[10] = "\0";
- static const char strings[] = { 'k', 'M', 'G', 'T', 0 };
- unsigned long divisor = 1;
+ int suffix, base;
- if(val == 0)
- return("0");
- if(hr)
- snprintf(str, 9, "%ld", val/hr);
- else {
- while(val >= divisor && i <= 4) {
- divisor=divisor<<10, i++;
- }
- divisor=divisor>>10, i--;
- snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]);
+ for (suffix = 0, base = 1; suffix < 5; suffix++, base <<= 10) {
+ if (val < (base << 10)) {
+ if (suffix && val < 10 * base)
+ sprintf(buffer, "%lu.%lu%s", val / base,
+ (val % base) * 10 / base, suffixes[suffix]);
+ else
+ sprintf(buffer, "%lu%s", val / base, suffixes[suffix]);
+ break;
+ }
}
- return(str);
-}
-
-/* END CODE */
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
+ return buffer;
+}