Print timestamp as a date and time string

Signed-off-by: Kenneth Heitke <kenneth.heitke@intel.com>

diff --git a/nvme-print.c b/nvme-print.c
index 14276824c85b09165336e1e728e4229e7a6405b2..cfe88e3bdc9f169fe6c28cb098a40c886e6f9fa7 100644 (file)
--- a/nvme-print.c
+++ b/nvme-print.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <time.h>
 
 #include "nvme-print.h"
 #include "json.h"
@@ -1845,7 +1846,14 @@ static void show_auto_pst(struct nvme_auto_pst *apst)
 
 static void show_timestamp(struct nvme_timestamp *ts)
 {
-       printf("\tThe timestamp is : %"PRIu64"\n", int48_to_long(ts->timestamp));
+       struct tm *tm;
+       char buffer[32];
+       time_t timestamp = int48_to_long(ts->timestamp) / 1000;
+
+       tm = localtime(&timestamp);
+       strftime(buffer, sizeof(buffer), "%c %Z", tm);
+
+       printf("\tThe timestamp is : %"PRIu64" (%s)\n", int48_to_long(ts->timestamp), buffer);
        printf("\t%s\n", (ts->attr & 2) ? "The Timestamp field was initialized with a "\
                        "Timestamp value using a Set Features command." : "The Timestamp field was initialized "\
                        "to ‘0’ by a Controller Level Reset.");