diff options
Diffstat (limited to 'sys/netinet/tcp_usrreq.c')
| -rw-r--r-- | sys/netinet/tcp_usrreq.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c index b6f377690856e..e258f5f6d022a 100644 --- a/sys/netinet/tcp_usrreq.c +++ b/sys/netinet/tcp_usrreq.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)tcp_usrreq.c 7.15 (Berkeley) 6/28/90 - * $Id: tcp_usrreq.c,v 1.5 1994/01/24 05:12:36 davidg Exp $ + * $Id: tcp_usrreq.c,v 1.6 1994/05/22 23:18:40 ache Exp $ */ #include "param.h" @@ -351,12 +351,15 @@ tcp_ctloutput(op, so, level, optname, mp) { int error = 0; struct inpcb *inp = sotoinpcb(so); - register struct tcpcb *tp = intotcpcb(inp); + register struct tcpcb *tp; register struct mbuf *m; if (level != IPPROTO_TCP) return (ip_ctloutput(op, so, level, optname, mp)); + if (!inp || !(tp = intotcpcb(inp))) + return (EINVAL); + switch (op) { case PRCO_SETOPT: |