diff options
Diffstat (limited to 'sys/net/rtsock.c')
| -rw-r--r-- | sys/net/rtsock.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index dc4ae26..6588f56 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -573,9 +573,6 @@ rt_msg1(type, rtinfo) register struct sockaddr *sa; int len, dlen; - m = m_gethdr(M_DONTWAIT, MT_DATA); - if (m == 0) - return (m); switch (type) { case RTM_DELADDR: @@ -595,8 +592,18 @@ rt_msg1(type, rtinfo) default: len = sizeof(struct rt_msghdr); } - if (len > MHLEN) + if (len > MCLBYTES) panic("rt_msg1"); + m = m_gethdr(M_DONTWAIT, MT_DATA); + if (m && len > MHLEN) { + MCLGET(m, M_DONTWAIT); + if ((m->m_flags & M_EXT) == 0) { + m_free(m); + m = NULL; + } + } + if (m == 0) + return (m); m->m_pkthdr.len = m->m_len = len; m->m_pkthdr.rcvif = 0; rtm = mtod(m, struct rt_msghdr *); |
