From: Florian Forster <octo@collectd.org>
Date: Thu, 30 May 2013 06:58:06 +0000 (+0200)
Subject: src/configfile.c: Let errors in included files propagate up to cf_read().
X-Git-Tag: collectd-5.3.1~4^2
X-Git-Url: https://git.tokkee.org/?p=collectd.git;a=commitdiff_plain;h=178db08806318e0b01de2e7a9261f18d6f7ca72d

src/configfile.c: Let errors in included files propagate up to cf_read().

cf_read_generic() returned NULL in two cases: Unable to read file and
file was empty. Since we wanted to allow empty includes, the "include
file with errors" case was not handled properly.

Github: #323
---

diff --git a/src/configfile.c b/src/configfile.c
index 5920c531..be777c52 100644
--- a/src/configfile.c
+++ b/src/configfile.c
@@ -564,7 +564,7 @@ static int cf_include_all (oconfig_item_t *root, int depth)
 
 		new = cf_read_generic (old->values[0].value.string, depth + 1);
 		if (new == NULL)
-			continue;
+			return (-1);
 
 		/* Now replace the i'th child in `root' with `new'. */
 		cf_ci_replace_child (root, new, i);
@@ -582,6 +582,7 @@ static int cf_include_all (oconfig_item_t *root, int depth)
 static oconfig_item_t *cf_read_file (const char *file, int depth)
 {
 	oconfig_item_t *root;
+	int status;
 
 	assert (depth < CF_MAX_DEPTH);
 
@@ -592,7 +593,12 @@ static oconfig_item_t *cf_read_file (const char *file, int depth)
 		return (NULL);
 	}
 
-	cf_include_all (root, depth);
+	status = cf_include_all (root, depth);
+	if (status != 0)
+	{
+		oconfig_free (root);
+		return (NULL);
+	}
 
 	return (root);
 } /* oconfig_item_t *cf_read_file */
@@ -783,12 +789,6 @@ static oconfig_item_t *cf_read_generic (const char *path, int depth)
 
 	wordfree (&we);
 
-	if (root->children == NULL)
-	{
-		oconfig_free (root);
-		return (NULL);
-	}
-
 	return (root);
 } /* oconfig_item_t *cf_read_generic */
 /* #endif HAVE_WORDEXP_H */
@@ -999,6 +999,12 @@ int cf_read (char *filename)
 		ERROR ("Unable to read config file %s.", filename);
 		return (-1);
 	}
+	else if (conf->children_num == 0)
+	{
+		ERROR ("Configuration file %s is empty.", filename);
+		oconfig_free (conf);
+		return (-1);
+	}
 
 	for (i = 0; i < conf->children_num; i++)
 	{