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Fix bad returned value

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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>
This commit is contained in:
Daniel Lezcano 2010-07-23 15:10:38 +02:00
parent 96bcd56ae2
commit e239ff31a5
1 changed files with 4 additions and 4 deletions
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8
src/lxc/nl.c
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@ -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;
}