X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrdtool.c;h=fd5fb56334346e406b7a1747b5e41ab2459f7722;hb=d69c181126dcf75dcc1c93954463ba32ca340b39;hp=e093f2b27f5395c7ec304044d84fc305af6e0fef;hpb=f46fe4b818f4d9db2f295f937b0b66f86ed8ab47;p=collectd.git

diff --git a/src/rrdtool.c b/src/rrdtool.c
index e093f2b2..fd5fb563 100644
--- a/src/rrdtool.c
+++ b/src/rrdtool.c
@@ -1008,23 +1008,36 @@ static int rrd_config (const char *key, const char *value)
 	}
 	else if (strcasecmp ("DataDir", key) == 0)
 	{
-		if (datadir != NULL)
-			free (datadir);
-		datadir = strdup (value);
+		char *tmp;
+		size_t len;
+
+		tmp = strdup (value);
+		if (tmp == NULL)
+		{
+			ERROR ("rrdtool plugin: strdup failed.");
+			return (1);
+		}
+
+		len = strlen (tmp);
+		while ((len > 0) && (tmp[len - 1] == '/'))
+		{
+			len--;
+			tmp[len] = 0;
+		}
+
+		if (len == 0)
+		{
+			ERROR ("rrdtool plugin: Invalid \"DataDir\" option.");
+			sfree (tmp);
+			return (1);
+		}
+
 		if (datadir != NULL)
 		{
-			int len = strlen (datadir);
-			while ((len > 0) && (datadir[len - 1] == '/'))
-			{
-				len--;
-				datadir[len] = '\0';
-			}
-			if (len <= 0)
-			{
-				free (datadir);
-				datadir = NULL;
-			}
+			sfree (datadir);
 		}
+
+		datadir = tmp;
 	}
 	else if (strcasecmp ("StepSize", key) == 0)
 	{
@@ -1207,6 +1220,7 @@ static int rrd_init (void)
 	cache = c_avl_create ((int (*) (const void *, const void *)) strcmp);
 	if (cache == NULL)
 	{
+		pthread_mutex_unlock (&cache_lock);
 		ERROR ("rrdtool plugin: c_avl_create failed.");
 		return (-1);
 	}