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Fix IP_HDRINCL usage on FreeBSD 11

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FreeBSD 11 changed endianity of ip_len field from host order to network
order. Also DragonFly BSD allegedly expects network order here.

Thanks to Olivier Cochard-Labbé for the patch.
This commit is contained in:
Ondrej Zajicek (work) 2017-01-17 13:21:25 +01:00
parent 017da76b72
commit f6e6c3b5a5
1 changed files with 3 additions and 2 deletions
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5
sysdep/bsd/sysio.h
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@ -9,6 +9,7 @@
#include <net/if_dl.h>
#include <netinet/in_systm.h> // Workaround for some BSDs
#include <netinet/ip.h>
#include <sys/param.h>
#ifdef __NetBSD__
@ -179,8 +180,8 @@ sk_prepare_ip_header(sock *s, void *hdr, int dlen)
ip->ip_src = ipa_to_in4(s->saddr);
ip->ip_dst = ipa_to_in4(s->daddr);
#ifdef __OpenBSD__
/* OpenBSD expects ip_len in network order, other BSDs expect host order */
#if (defined __OpenBSD__) || (defined __DragonFly__) || (defined __FreeBSD__ && (__FreeBSD_version >= 1100030))
/* Different BSDs have different expectations of ip_len endianity */
ip->ip_len = htons(ip->ip_len);
#endif
}