diff options
| author | paul <paul> | 2004-10-05 14:33:43 +0000 |
|---|---|---|
| committer | paul <paul> | 2004-10-05 14:33:43 +0000 |
| commit | 00324aa4ea7a610016c561f90ca4d051e8f76659 (patch) | |
| tree | fc1da26f616616a17ec0cc5fe4da51fa72b3fb5d /lib/sockopt.c | |
| parent | 7b53574d4487b11541c431c04307d99821950ebe (diff) | |
| download | quagga-00324aa4ea7a610016c561f90ca4d051e8f76659.tar.bz2 quagga-00324aa4ea7a610016c561f90ca4d051e8f76659.tar.xz | |
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 1a7524b5..5936d661 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); +} |