msg: Avoid returning a negative value for nlmsg_attrlen()
If a hdrlen was provided that was greather than the actual message length, a negative attributes length would result. This was typically happening for RTM_GETLINK requests where we can get a away with a 4 bytes header on the request side but the response would use a 16 bytes header. This resulted in strange -8 bytes leftover debug messages. Signed-off-by: Thomas Graf <tgraf@suug.ch>
This commit is contained in:
parent
d612180cda
commit
01cfa9c1db
Reference in New Issue