Implement fmt_human_2() and fmt_human_10()

These functions take the raw number and a unit and automatically
print it out "scaled down" to a proper SI-prefix, for powers of 2
and 10 respectively.

Apply them to the 2-power cases and keep the 10-power for a later
commit.

1 files changed, 6 insertions, 6 deletions

diff --git a/components/swap.c b/components/swap.c
index 64feceb..c005691 100644
--- a/components/swap.c
+++ b/components/swap.c
@@ -48,7 +48,7 @@
 		}
 		sscanf(match, "SwapFree: %ld kB\n", &free);
 
-		return fmt_scaled(free * 1024);
+		return fmt_human_2(free * 1024, "B");
 	}
 
 	const char *
@@ -94,7 +94,7 @@
 		}
 		sscanf(match, "SwapTotal: %ld kB\n", &total);
 
-		return fmt_scaled(total * 1024);
+		return fmt_human_2(total * 1024, "B");
 	}
 
 	const char *
@@ -122,7 +122,7 @@
 		}
 		sscanf(match, "SwapFree: %ld kB\n", &free);
 
-		return fmt_scaled((total - free - cached) * 1024);
+		return fmt_human_2((total - free - cached) * 1024, "B");
 	}
 #elif defined(__OpenBSD__)
 	#include <stdlib.h>
@@ -174,7 +174,7 @@
 
 		getstats(&total, &used);
 
-		return fmt_scaled((total - used) * 1024);
+		return fmt_human_2((total - used) * 1024, "B");
 	}
 
 	const char *
@@ -194,7 +194,7 @@
 
 		getstats(&total, &used);
 
-		return fmt_scaled(total * 1024);
+		return fmt_human_2(total * 1024, "B");
 	}
 
 	const char *
@@ -204,6 +204,6 @@
 
 		getstats(&total, &used);
 
-		return fmt_scaled(used * 1024);
+		return fmt_human_2(used * 1024, "B");
 	}
 #endif