From e70ea4247fd9eefcdd3f80fdc8a045257d196fcb Mon Sep 17 00:00:00 2001
From: Christian Kohlstedde <christian@kohlsted.de>
Date: Wed, 18 Feb 2015 16:53:24 +0100
Subject: [PATCH] Modify print_disk_info. Now there is no output if the path is
 no mountpoint.

---
 src/print_disk_info.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/print_disk_info.c b/src/print_disk_info.c
index 1671210..a9fcba3 100644
--- a/src/print_disk_info.c
+++ b/src/print_disk_info.c
@@ -3,7 +3,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
+#include <mntent.h>
 #include <stdint.h>
+#include <sys/stat.h>
 #include <sys/statvfs.h>
 #include <sys/types.h>
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || (__OpenBSD__) || defined(__DragonFly__)
@@ -125,6 +127,24 @@ void print_disk_info(yajl_gen json_gen, char *buffer, const char *path, const ch
                 return;
 #endif
 
+        FILE *mntentfile = setmntent("/etc/mtab", "r");
+        struct mntent *m;
+        bool found = false;
+
+        while ((m = getmntent(mntentfile))) {
+                if (strcmp(m->mnt_dir, path) == 0) {
+                        found = true;
+                        break;
+                }
+        }
+        endmntent(mntentfile);
+
+        if(!found) {
+                *outwalk = '\0';
+                OUTPUT_FULL_TEXT(buffer);
+                return;
+        }
+
         if (low_threshold > 0 && below_threshold(buf, prefix_type, threshold_type, low_threshold)) {
                 START_COLOR("color_bad");
                 colorful_output = true;
-- 
2.39.5