[newlib-cygwin] RTEMS: Introduce <machine/_kernel_in.h>

[Sebastian Huber <sh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=0c0dd285969ace58bd1265f4c2ebd75ea087b2ce

commit 0c0dd285969ace58bd1265f4c2ebd75ea087b2ce
Author: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date:   Wed Aug 8 11:56:27 2018 +0200

    RTEMS: Introduce <machine/_kernel_in.h>
    
    This helps to avoid Newlib updates due to FreeBSD kernel space changes.
    
    Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

Diff:
---
 newlib/libc/sys/rtems/include/netinet/in.h | 30 ++++--------------------------
 1 file changed, 4 insertions(+), 26 deletions(-)

diff --git a/newlib/libc/sys/rtems/include/netinet/in.h b/newlib/libc/sys/rtems/include/netinet/in.h
index 1a431d1..11f3262 100644
--- a/newlib/libc/sys/rtems/include/netinet/in.h
+++ b/newlib/libc/sys/rtems/include/netinet/in.h
@@ -640,32 +640,6 @@ int	getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
 
 #endif /* __BSD_VISIBLE */
 
-#ifdef _KERNEL
-
-struct ifnet; struct mbuf;	/* forward declarations for Standard C */
-struct in_ifaddr;
-
-int	 in_broadcast(struct in_addr, struct ifnet *);
-int	 in_ifaddr_broadcast(struct in_addr, struct in_ifaddr *);
-int	 in_canforward(struct in_addr);
-int	 in_localaddr(struct in_addr);
-int	 in_localip(struct in_addr);
-int	 in_ifhasaddr(struct ifnet *, struct in_addr);
-int	 inet_aton(const char *, struct in_addr *); /* in libkern */
-char	*inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
-char	*inet_ntop(int, const void *, char *, socklen_t); /* in libkern */
-int	 inet_pton(int af, const char *, void *); /* in libkern */
-void	 in_ifdetach(struct ifnet *);
-
-#define	in_hosteq(s, t)	((s).s_addr == (t).s_addr)
-#define	in_nullhost(x)	((x).s_addr == INADDR_ANY)
-#define	in_allhosts(x)	((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP))
-
-#define	satosin(sa)	((struct sockaddr_in *)(sa))
-#define	sintosa(sin)	((struct sockaddr *)(sin))
-#define	ifatoia(ifa)	((struct in_ifaddr *)(ifa))
-#endif /* _KERNEL */
-
 /* INET6 stuff */
 #if __POSIX_VISIBLE >= 200112
 #define	__KAME_NETINET_IN_H_INCLUDED_
@@ -673,4 +647,8 @@ void	 in_ifdetach(struct ifnet *);
 #undef __KAME_NETINET_IN_H_INCLUDED_
 #endif
 
+#ifdef _KERNEL
+/* Header file provided outside of Newlib */
+#include <machine/_kernel_in.h>
+#endif
 #endif /* !_NETINET_IN_H_*/