Implement manual choice of output unit

Add an optional argument to option -s allowing user to manually specify
units used for outputting results.

Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 14 insertions, 0 deletions

diff --git a/common.h b/common.h
index 935d6f1..4bf3e15 100644
--- a/common.h
+++ b/common.h
@@ -46,7 +46,21 @@ char *sstrdup(const char *s);
 /* Print version string */
 void version(void);
 
+/* Desired output unit */
+enum s2s_unit {
+	S2S_NONE = 0,
+	S2S_KB,
+	S2S_MB,
+	S2S_GB,
+	S2S_TB,
+	S2S_AUTO,
+	S2S_INVALID
+};
+
 /* Compare two times */
 int timespec_cmp(struct timespec *a, struct timespec *b);
 
+/* Convert command line option to desired output unit */
+int unitopt2unit(char *opt, enum s2s_unit *space_unit, enum s2s_unit *inode_unit);
+
 #endif /* GUARD_COMMON_H */