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df plugin: Guard strcmp() against being passed NULL pointers.
[collectd.git]
/
src
/
df.c
diff --git
a/src/df.c
b/src/df.c
index
4a86799
..
af54c92
100644
(file)
--- a/
src/df.c
+++ b/
src/df.c
@@
-229,7
+229,10
@@
static int df_read (void)
}
/* Duplicate found: leave non-NULL dup_ptr. */
}
/* Duplicate found: leave non-NULL dup_ptr. */
- if (by_device && (strcmp (mnt_ptr->spec_device, dup_ptr->spec_device) == 0))
+ if (by_device
+ && (mnt_ptr->spec_device != NULL)
+ && (dup_ptr->spec_device != NULL)
+ && (strcmp (mnt_ptr->spec_device, dup_ptr->spec_device) == 0))
break;
else if (!by_device && (strcmp (mnt_ptr->dir, dup_ptr->dir) == 0))
break;
break;
else if (!by_device && (strcmp (mnt_ptr->dir, dup_ptr->dir) == 0))
break;