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Fix SLIRP networking on OS X (and maybe other platforms?).

Browse Source 
The bug was introduced by 0daa18ab2a,
which erroneously changed some signed types to unsigned types,
breaking logic involving negative numbers (e.g. when subtracting
sizes).
This commit is contained in:
Alexei Svitkine 2016-11-02 02:08:51 -04:00
parent 3cb91cc003
commit 268611ca75
1 changed files with 4 additions and 4 deletions
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8
BasiliskII/src/slirp/tcp_output.c
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@ -66,7 +66,7 @@ u_char tcp_outflags[TCP_NSTATES] = {
int tcp_output(register struct tcpcb *tp)
{
register struct socket *so = tp->t_socket;
register u_long len, win;
register long len, win;
int off, flags, error;
register struct mbuf *m;
register struct tcpiphdr *ti;
@ -199,12 +199,12 @@ again:
* taking into account that we are limited by
* TCP_MAXWIN << tp->rcv_scale.
*/
u_int adv = min(win, (u_int)TCP_MAXWIN << tp->rcv_scale) -
long adv = min(win, TCP_MAXWIN << tp->rcv_scale) -
(tp->rcv_adv - tp->rcv_nxt);
if (adv >= (u_int)(2 * tp->t_maxseg))
if (adv >= (long)(2 * tp->t_maxseg))
goto send;
if (2 * adv >= so->so_rcv.sb_datalen)
if (2 * adv >= (long)so->so_rcv.sb_datalen)
goto send;
}