netdev - [PATCH iproute2 2/2] tc class: Ignore if default class name file does not exist

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Date:	Tue, 17 Mar 2015 18:52:04 +0200
From:	Vadim Kochan <vadim4j@...il.com>
To:	netdev@...r.kernel.org
Cc:	daniel@...earbox.net, Vadim Kochan <vadim4j@...il.com>
Subject: [PATCH iproute2 2/2] tc class: Ignore if default class name file does not exist

From: Vadim Kochan <vadim4j@...il.com>

If '-nm' specified then do not fail if there is no
default class names file in /etc/iproute2.

Changed default class name file cls_names -> tc_cls.

Signed-off-by: Vadim Kochan <vadim4j@...il.com>
---
 tc/tc_util.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/tc/tc_util.c b/tc/tc_util.c
index feae439..5213e9e 100644
--- a/tc/tc_util.c
+++ b/tc/tc_util.c
@@ -21,6 +21,7 @@
 #include <arpa/inet.h>
 #include <string.h>
 #include <math.h>
+#include <errno.h>
 
 #include "utils.h"
 #include "names.h"
@@ -33,15 +34,25 @@
 
 static struct db_names *cls_names = NULL;
 
-#define NAMES_DB "/etc/iproute2/cls_names"
+#define NAMES_DB "/etc/iproute2/tc_cls"
 
 int cls_names_init(char *path)
 {
-	cls_names = db_names_alloc(path ?: NAMES_DB);
-	if (!cls_names) {
-		fprintf(stderr, "Error while opening class names file\n");
+	int ret = -1;
+
+	cls_names = db_names_alloc();
+	if (!cls_names)
+		return -1;
+
+	ret = db_names_load(cls_names, path ?: NAMES_DB);
+	if (ret == -ENOENT && path) {
+		fprintf(stderr, "Can't open class names file: %s\n", path);
 		return -1;
 	}
+	if (ret) {
+		db_names_free(cls_names);
+		cls_names = NULL;
+	}
 
 	return 0;
 }
-- 
2.3.1

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