[lwip-users] bug in lwip_select()

[Zschocke, Florian]

There is a bug in lwip_select(). Around line 726 I find

msectimeout =  ((timeout->tv_sec * 1000) + (timeout->tv_usec /1000));

Obviously lwip_select works with milisecond precision. This line is going to
be a problem when a user tries to call lwip_select() with a timeout of less
than 1 millisecond, say 100 nanoseconds. The division will be zero which
makes the msectimeout zero which will make select() wait forever, which is
not quite what the programmer intended. 

Florian
Zschocke