blobmsg: fill padding between name and data

diff --git a/blobmsg.c b/blobmsg.c
index 0129640f8d0f27c760af0f0c783bafc5215e6882..0551b2695cc0f828b11d1019f682b3accc8a5cd6 100644 (file)
--- a/blobmsg.c
+++ b/blobmsg.c
@@ -114,6 +114,7 @@ blobmsg_new(struct blob_buf *buf, int type, const char *name, int payload_len, v
        struct blob_attr *attr;
        struct blobmsg_hdr *hdr;
        int attrlen, namelen;
+       char *pad_start, *pad_end;
 
        if (!name)
                name = "";
@@ -127,7 +128,10 @@ blobmsg_new(struct blob_buf *buf, int type, const char *name, int payload_len, v
        hdr = blob_data(attr);
        hdr->namelen = cpu_to_be16(namelen);
        strcpy((char *) hdr->name, (const char *)name);
-       *data = blobmsg_data(attr);
+       pad_end = *data = blobmsg_data(attr);
+       pad_start = (char *) &hdr->name[namelen];
+       if (pad_start < pad_end)
+               memset(pad_start, 0, pad_end - pad_start);
 
        return attr;
 }