[klibc] [PATCH 2/7] kinit: try_name() check snprintf return

[maximilian attems]

Signed-off-by: maximilian attems <max at stro.at>
---
 usr/kinit/name_to_dev.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/usr/kinit/name_to_dev.c b/usr/kinit/name_to_dev.c
index d491285..8604375 100644
--- a/usr/kinit/name_to_dev.c
+++ b/usr/kinit/name_to_dev.c
@@ -26,7 +26,9 @@ static dev_t try_name(char *name, int part)
 	int fd;
 
 	/* read device number from /sys/block/.../dev */
-	snprintf(path, sizeof(path), "/sys/block/%s/dev", name);
+	len = snprintf(path, sizeof(path), "/sys/block/%s/dev", name);
+	if (len >= sizeof(path))
+		goto fail;
 	fd = open(path, 0, 0);
 	if (fd < 0)
 		goto fail;
@@ -49,7 +51,9 @@ static dev_t try_name(char *name, int part)
 		return res;
 
 	/* otherwise read range from .../range */
-	snprintf(path, sizeof(path), "/sys/block/%s/range", name);
+	len = snprintf(path, sizeof(path), "/sys/block/%s/range", name);
+	if (len >= sizeof(path))
+		goto fail;
 	fd = open(path, 0, 0);
 	if (fd < 0)
 		goto fail;
-- 
1.7.5.4