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-rw-r--r--lib/lib.c27
-rw-r--r--lib/lib.h2
2 files changed, 29 insertions, 0 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 2774e7c0..3deabda2 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -1073,3 +1073,30 @@ mode_t string_to_mode(char *modestr, mode_t mode)
barf:
error_exit("bad mode '%s'", modestr);
}
+
+
+char* make_human_readable(unsigned long long size, unsigned long unit)
+{
+ unsigned int frac = 0;
+ if(unit) {
+ size = (size/(unit)) + (size%(unit)?1:0);
+ return xmsprintf("%llu", size);
+ }
+ else {
+ static char units[] = {'\0', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'};
+ int index = 0;
+ while(size >= 1024) {
+ frac = size%1024;
+ size /= 1024;
+ index++;
+ }
+ frac = (frac/102) + ((frac%102)?1:0);
+ if(frac >= 10) {
+ size += 1;
+ frac = 0;
+ }
+ if(frac) return xmsprintf("%llu.%u%c", size, frac, units[index]);
+ else return xmsprintf("%llu%c", size, units[index]);
+ }
+ return NULL; //not reached
+}
diff --git a/lib/lib.h b/lib/lib.h
index 9c90a2df..d81e2d94 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -174,3 +174,5 @@ mode_t string_to_mode(char *mode_str, mode_t base);
int read_password(char * buff, int buflen, char* mesg);
int update_password(char *filename, char* username, char* encrypted);
+// du helper functions
+char* make_human_readable(unsigned long long size, unsigned long unit);