diff options
| author | paul <paul> | 2004-10-05 16:33:43 +0200 |
|---|---|---|
| committer | paul <paul> | 2004-10-05 16:33:43 +0200 |
| commit | 96e27c9928b5078526f2a7564700dbdafe2c8d42 (patch) | |
| tree | 5697279fc355244f385da4fbf6e313feb215f06a /lib/sockopt.c | |
| parent | Even my time is limited :). (diff) | |
| download | frr-96e27c9928b5078526f2a7564700dbdafe2c8d42.tar.xz frr-96e27c9928b5078526f2a7564700dbdafe2c8d42.zip | |
2004-10-05 Paul Jakma <paul@dishone.st>
* sockopt.{c,h}: add sockopt_iphdrincl_swab_{htosys,systoh},
functions to change byte order between system IP_HDRINCL order
and host order.
Diffstat (limited to 'lib/sockopt.c')
| -rw-r--r-- | lib/sockopt.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/sockopt.c b/lib/sockopt.c index 1a7524b5d..5936d6610 100644 --- a/lib/sockopt.c +++ b/lib/sockopt.c @@ -360,3 +360,29 @@ getsockopt_ifindex (int af, struct msghdr *msgh) return (ifindex = 0); } } + +/* swab iph between order system uses for IP_HDRINCL and host order */ +void +sockopt_iphdrincl_swab_htosys (struct ip *iph) +{ + /* BSD and derived take iph in network order, except for + * ip_len and ip_off + */ +#ifndef HAVE_IP_HDRINCL_BSD_ORDER + iph->ip_len = htons(iph->ip_len); + iph->ip_off = htons(iph->ip_off); +#endif /* HAVE_IP_HDRINCL_BSD_ORDER */ + + iph->ip_id = htons(iph->ip_id); +} + +void +sockopt_iphdrincl_swab_systoh (struct ip *iph) +{ +#ifndef HAVE_IP_HDRINCL_BSD_ORDER + iph->ip_len = ntohs(iph->ip_len); + iph->ip_off = ntohs(iph->ip_off); +#endif /* HAVE_IP_HDRINCL_BSD_ORDER */ + + iph->ip_id = ntohs(iph->ip_id); +} |