setsockopt(..,SO_RCVBUF,..) sets wrong value

Manfred Bartz (mbartz@optushome.com.au)
02 Aug 2001 20:34:47 +1000


When I do a setsockopt(..,SO_RCVBUF,..) and then read the value back
with getsockopt(), the reported value is exactly twice of what I set.

Running the same code on Solaris and on DEC UNIX reports back the
exact size I set.

Looking at the code it seems that the *2 should not be there:

int sock_setsockopt(...

case SO_SNDBUF:

sk->sndbuf = max(val*2,SOCK_MIN_SNDBUF);

case SO_RCVBUF:
/* FIXME: is this lower bound the right one? */
sk->rcvbuf = max(val*2,SOCK_MIN_RCVBUF);
break;

-- 
Manfred Bartz
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