Update files to match FreeBSD layout

Add compatibility with Newlib header files.  Some FreeBSD header files
are mapped by the translation script:

     o rtems/bsd/sys/_types.h
     o rtems/bsd/sys/errno.h
     o rtems/bsd/sys/lock.h
     o rtems/bsd/sys/param.h
     o rtems/bsd/sys/resource.h
     o rtems/bsd/sys/time.h
     o rtems/bsd/sys/timespec.h
     o rtems/bsd/sys/types.h
     o rtems/bsd/sys/unistd.h

It is now possible to include <sys/socket.h> directly for example.

Generate one Makefile which builds everything including tests.

freebsd/sbin/dhclient/bpf.c

@@ -47,13 +47,8 @@ __FBSDID("$FreeBSD$");
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 
-#ifdef __rtems__
-#include <freebsd/net/bpf.h>
-#include <freebsd/netinet/in_systm.h>
-#else
 #include <net/bpf.h>
 #include <netinet/in_systm.h>
-#endif
 #include <netinet/ip.h>
 #include <netinet/udp.h>
 #include <netinet/if_ether.h>

freebsd/sbin/dhclient/dhclient.c

@@ -59,11 +59,7 @@ __FBSDID("$FreeBSD$");
 #include "dhcpd.h"
 #include "privsep.h"
 
-#ifdef __rtems__
-#include <freebsd/net80211/ieee80211_freebsd.h>
-#else
 #include <net80211/ieee80211_freebsd.h>
-#endif
 
 #ifndef _PATH_VAREMPTY
 #define	_PATH_VAREMPTY	"/var/empty"
@@ -422,6 +418,10 @@ main(int argc, char *argv[])
 	close(pipe_fd[0]);
 	privfd = pipe_fd[1];
 
+#ifdef __rtems__
+/* FIXME: Add O_EXLOCK capabilities to RTEMS file system */
+#define O_EXLOCK 0
+#endif /* __rtems__ */
 	if ((fd = open(path_dhclient_db, O_RDONLY|O_EXLOCK|O_CREAT, 0)) == -1)
 		error("can't open and lock %s: %m", path_dhclient_db);
 	read_client_leases();

freebsd/sbin/dhclient/dhcpd.h

@@ -41,12 +41,12 @@
  * $FreeBSD$
  */
 
-#include <sys/types.h>
+#include <rtems/bsd/sys/types.h>
 
 #include <sys/socket.h>
 #include <sys/sockio.h>
 #include <sys/stat.h>
-#include <sys/time.h>
+#include <rtems/bsd/sys/time.h>
 #include <sys/un.h>
 #include <sys/wait.h>
 

freebsd/sbin/dhclient/dispatch.c

@@ -46,11 +46,7 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/ioctl.h>
 
-#ifdef __rtems__
-#include <freebsd/net/if_media.h>
-#else
 #include <net/if_media.h>
-#endif
 #include <ifaddrs.h>
 #include <poll.h>
 

freebsd/sbin/dhclient/privsep.h

@@ -16,7 +16,7 @@
  * OF OR IN CONNECTION WITH THE USE, ABUSE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <sys/types.h>
+#include <rtems/bsd/sys/types.h>
 
 #include <poll.h>
 #include <pwd.h>