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| author | Matthew N. Dodd <mdodd@FreeBSD.org> | 2003-04-29 21:36:18 +0000 |
|---|---|---|
| committer | Matthew N. Dodd <mdodd@FreeBSD.org> | 2003-04-29 21:36:18 +0000 |
| commit | 4957466b8e6ac843337f2ad22e7c10fd296ebde6 (patch) | |
| tree | 88134d6cb4a3f69dc73f37d3de27f67b6a7b4f0c /sys/netinet/ip_input.c | |
| parent | 2d5d213f82071004fb339aa4d1a9b5848361d8ec (diff) | |
| download | src-4957466b8e6ac843337f2ad22e7c10fd296ebde6.tar.gz src-4957466b8e6ac843337f2ad22e7c10fd296ebde6.zip | |
IP_RECVTTL socket option.
Reviewed by: Stuart Cheshire <cheshire@apple.com>
Notes
Notes:
svn path=/head/; revision=114258
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 5cf4ff4a4539..32f2b6d7ec8d 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -2052,6 +2052,12 @@ ip_savecontrol(inp, mp, ip, m) if (*mp) mp = &(*mp)->m_next; } + if (inp->inp_flags & INP_RECVTTL) { + *mp = sbcreatecontrol((caddr_t) &ip->ip_ttl, + sizeof(u_char), IP_RECVTTL, IPPROTO_IP); + if (*mp) + mp = &(*mp)->m_next; + } #ifdef notyet /* XXX * Moving these out of udp_input() made them even more broken |