From 5a943fa59cab43f4a2cf6c133c4ef5676d6358b1 Mon Sep 17 00:00:00 2001
From: Aaron Marcher <info@nulltime.net>
Date: Fri, 3 Jun 2016 13:04:15 +0200
Subject: added entropy

---
 slstatus.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'slstatus.c')

diff --git a/slstatus.c b/slstatus.c
index ee6b160..3574468 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -181,6 +181,29 @@ disk_perc(const char *mountpoint)
     return smprintf("%d%%", perc);
 }
 
+/* entropy available */
+char *
+entropy(const char *null)
+{
+    int entropy = 0;
+    FILE *fp;
+
+    /* open entropy file */
+    if (!(fp = fopen("/proc/sys/kernel/random/entropy_avail", "r"))) {
+        fprintf(stderr, "Could not open entropy file.\n");
+        return smprintf("n/a");
+    }
+
+    /* extract entropy */
+    fscanf(fp, "%d", &entropy);
+
+    /* close entropy file */
+    fclose(fp);
+
+    /* return entropy */
+    return smprintf("%d", entropy);
+}
+
 /* ram percentage */
 char *
 ram_perc(const char *null)
-- 
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