diff options
Diffstat (limited to 'slirp/tcp_output.c')
| -rw-r--r-- | slirp/tcp_output.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/slirp/tcp_output.c b/slirp/tcp_output.c index 7fc6a87..32201fb 100644 --- a/slirp/tcp_output.c +++ b/slirp/tcp_output.c @@ -61,7 +61,8 @@ tcp_output(struct tcpcb *tp) register long len, win; int off, flags, error; register struct mbuf *m; - register struct tcpiphdr *ti; + register struct tcpiphdr *ti, tcpiph_save; + struct ip *ip; u_char opt[MAX_TCPOPTLEN]; unsigned optlen, hdrlen; int idle, sendalot; @@ -447,13 +448,15 @@ send: * the template, but need a way to checksum without them. */ m->m_len = hdrlen + len; /* XXX Needed? m_len should be correct */ + tcpiph_save = *mtod(m, struct tcpiphdr *); - struct tcpiphdr tcpiph_save = *(mtod(m, struct tcpiphdr *)); + switch (so->so_ffamily) { + case AF_INET: m->m_data += sizeof(struct tcpiphdr) - sizeof(struct tcphdr) - sizeof(struct ip); m->m_len -= sizeof(struct tcpiphdr) - sizeof(struct tcphdr) - sizeof(struct ip); - struct ip *ip = mtod(m, struct ip *); + ip = mtod(m, struct ip *); ip->ip_len = m->m_len; ip->ip_dst = tcpiph_save.ti_dst; @@ -464,6 +467,11 @@ send: ip->ip_tos = so->so_iptos; error = ip_output(so, m); + break; + + default: + g_assert_not_reached(); + } if (error) { out: |