Fix bad returned value

In case of error the message will be always truncated.
We check the message was truncated with the total size
received which means the kernel as more info to give.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>

diff --git a/src/lxc/nl.c b/src/lxc/nl.c
index fdaf07e66597800799521db389891b0e20bdb79d..236cfcb27f64e46aef480a35a6644767f71e97ba 100644 (file)
--- a/src/lxc/nl.c
+++ b/src/lxc/nl.c
@@ -155,7 +155,8 @@ again:
        if (!ret)
                return 0;
 
-       if (msg.msg_flags & MSG_TRUNC)
+       if (msg.msg_flags & MSG_TRUNC &&
+           ret == answer->nlmsghdr.nlmsg_len)
                return -EMSGSIZE;
 
        return ret;
@@ -182,9 +183,8 @@ extern int netlink_send(struct nl_handler *handler, struct nlmsg *nlmsg)
         nladdr.nl_groups = 0;
 
        ret = sendmsg(handler->fd, &msg, 0);
-       if (ret < 0) {
+       if (ret < 0)
                return -errno;
-       }
 
        return ret;
 }
@@ -209,7 +209,7 @@ extern int netlink_transaction(struct nl_handler *handler,
                struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(answer);
                return err->error;
        }
-       
+
        return 0;
 }