ip-link: in human readable output use dynamic precision length
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index e240bb5..db39437 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -324,6 +324,8 @@
const char *prefix = "kMGTPE";
const unsigned int base = use_iec ? 1024 : 1000;
uint64_t powi = 1;
+ uint16_t powj = 1;
+ uint8_t precision = 2;
char buf[64];
if (!human_readable || count < base) {
@@ -343,8 +345,15 @@
++prefix;
}
- snprintf(buf, sizeof(buf), "%.1f%c%s", (double) count / powi,
- *prefix, use_iec ? "i" : "");
+ /* try to guess a good number of digits for precision */
+ for (; precision > 0; precision--) {
+ powj *= 10;
+ if (count / powi < powj)
+ break;
+ }
+
+ snprintf(buf, sizeof(buf), "%.*f%c%s", precision,
+ (double) count / powi, *prefix, use_iec ? "i" : "");
fprintf(fp, "%-*s ", width, buf);
}