2005-11-14  Thomas Quinot  <quinot@adacore.com>

	* g-soccon.ads: Minor reformatting. Update comments.

	* gsocket.h: Include <sys/times.h> in the VxWorks case, in order to
	gain visibility on the declaration of struct timeval.

	* g-soccon-freebsd.ads,
	g-soccon-darwin.ads,
	g-soccon-tru64.ads,
	g-soccon-aix.ads,
	g-soccon-irix.ads,
	g-soccon-hpux.ads,
	g-soccon-solaris.ads,
	g-soccon-vms.ads,
	g-soccon-mingw.ads,
	g-soccon-vxworks.ads (SIZEOF_tv_sec, SIZEOF_tv_usec): New constants.

	* g-soccon-hpux-ia64.ads, g-soccon-linux-ppc.ads,
	g-soccon-solaris-64.ads, g-soccon-linux-64.ads,
	g-soccon-linux-x86.ads: New files.

	* g-socthi-mingw.adb: 
	(Socket_Error_Message): Remove redundant use of GNAT.Sockets.Constants

	* g-socthi-vxworks.ads, g-socthi-vms.ads, g-socthi-mingw.ads
	(time_t, suseconds_t): New types constructed to match the tv_sec
	and tv_usec fields of C struct timeval.
	(Timeval): Construct structure in terms of the new types.
	(Host_Errno): New function (imported from socket.c), returns last hosts
	database error.

	* g-socthi-vxworks.adb:  Add error handling circuitry.

	* g-socket.ads, g-socket.adb (To_Timeval): Reflect change of type for
	components of struct timeval.
	(Get_Host_By_Name, Get_Host_By_Address): Fix error reporting circuitry.
	(Check_Selector): In error conditions, clear internal socket sets to
	avoid a memory leak.
	(Get_Socket_Option, Set_Socket_Option): Support for Multicast_If,
	Send_Timeout, Receive_Timeout.

	* g-socthi.ads (time_t, suseconds_t): New types constructed to match
	the tv_sec and tv_usec fields of C struct timeval.
	(Timeval): Construct structure in terms of the new types.
	(Host_Errno): New function (imported from socket.c), returns last hosts
	database error.

	* socket.c (__gnat_get_h_errno): New function to retrieve h_errno, the
	hosts database last error code.

	* gen-soccon.c: Complete value expansion should not be performed on
	TARGET, as it has the form of a math expression, and some components
	may be platform-defined macros.
	For VxWorks, generate the OK and ERROR values.
	New constants giving the sizes of the components of C struct timeval.

From-SVN: r106949