diff options
| author | cinap_lenrek <cinap_lenrek@gmx.de> | 2012-07-09 21:01:42 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@gmx.de> | 2012-07-09 21:01:42 +0200 |
| commit | 546ee86c5253011ddcc9fd25a0ee554e007bd587 (patch) | |
| tree | 28df78668454c458d0a80af1a8c144781bd3b1f5 /sys/src/9/ip | |
| parent | 357aef46a579a6695d63eed8a4555a26671dae9a (diff) | |
tcp: memset paranoia, synced from sources
Diffstat (limited to 'sys/src/9/ip')
| -rw-r--r-- | sys/src/9/ip/tcp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/src/9/ip/tcp.c b/sys/src/9/ip/tcp.c index f57ef11b3..4de8a3bae 100644 --- a/sys/src/9/ip/tcp.c +++ b/sys/src/9/ip/tcp.c @@ -1345,6 +1345,7 @@ tcphangup(Conv *s) return commonerror(); if(ipcmp(s->raddr, IPnoaddr) != 0) { if(!waserror()){ + memset(&seg, 0, sizeof seg); seg.flags = RST | ACK; seg.ack = tcb->rcv.nxt; tcb->rcv.una = 0; @@ -1413,6 +1414,7 @@ sndsynack(Proto *tcp, Limbo *lp) panic("sndrst: version %d", lp->version); } + memset(&seg, 0, sizeof seg); seg.seq = lp->iss; seg.ack = lp->irs+1; seg.flags = SYN|ACK; @@ -1960,6 +1962,7 @@ tcpiput(Proto *tcp, Ipifc*, Block *bp) h4 = (Tcp4hdr*)(bp->rp); h6 = (Tcp6hdr*)(bp->rp); + memset(&seg, 0, sizeof seg); if((h4->vihl&0xF0)==IP_VER4) { version = V4; @@ -2445,6 +2448,7 @@ tcpoutput(Conv *s) f = s->p->f; tpriv = s->p->priv; version = s->ipversion; + memset(&seg, 0, sizeof seg); for(msgs = 0; msgs < 100; msgs++) { tcb = (Tcpctl*)s->ptcl; @@ -2657,6 +2661,7 @@ tcpsendka(Conv *s) tcb = (Tcpctl*)s->ptcl; dbp = nil; + memset(&seg, 0, sizeof seg); seg.urg = 0; seg.source = s->lport; seg.dest = s->rport; |