/* Generic socket.h */
/* $OpenLDAP$ */
/*
 * Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted only
 * as authorized by the OpenLDAP Public License.  A copy of this
 * license is available at http://www.OpenLDAP.org/license.html or
 * in file LICENSE in the top-level directory of the distribution.
 */

#ifndef _AC_SOCKET_H_
#define _AC_SOCKET_H_

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif

#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>

#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif

#include <netinet/in.h>

#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif

#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif

#ifdef HAVE_ARPA_NAMESER_H
#include <arpa/nameser.h>
#endif

#include <netdb.h>

#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif

#endif /* HAVE_SYS_SOCKET_H */

#ifdef HAVE_WINSOCK2
#include <winsock2.h>
#elif HAVE_WINSOCK
#include <winsock.h>
#else
#define WSACleanup()
#endif

#ifdef HAVE_PCNFS
#include <tklib.h>
#endif /* HAVE_PCNFS */

#ifndef INADDR_LOOPBACK
#define INADDR_LOOPBACK	(0x7f000001UL)
#endif

#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN  64
#endif

#undef	sock_errno
#undef	sock_errstr
#define sock_errno()	errno
#define sock_errstr(e)	STRERROR(e)

#ifdef HAVE_WINSOCK
#	define tcp_close( s )		closesocket( s )
#	define tcp_read( s, buf, len )	recv( s, buf, len, 0 )
#	define tcp_write( s, buf, len )	send( s, buf, len, 0 )
#	define ioctl( s, c, a )		ioctlsocket( (s), (c), (a) )
#	define ioctl_t				u_long
#	define AC_SOCKET_INVALID	((unsigned int) ~0)

#define EWOULDBLOCK WSAEWOULDBLOCK
#define EINPROGRESS WSAEINPROGRESS
#define ETIMEDOUT	WSAETIMEDOUT

#undef	sock_errno
#undef	sock_errstr
#define	sock_errno()	WSAGetLastError()
#define	sock_errstr(e)	WSAGetErrorString(e)

extern char* WSAGetErrorString LDAP_P((int));

#elif MACOS
#	define tcp_close( s )		tcpclose( s )
#	define tcp_read( s, buf, len )	tcpread( s, buf, len )
#	define tcp_write( s, buf, len )	tcpwrite( s, buf, len )

#elif DOS
#	ifdef PCNFS
#		define tcp_close( s )	close( s )
#		define tcp_read( s, buf, len )	recv( s, buf, len, 0 )
#		define tcp_write( s, buf, len )	send( s, buf, len, 0 )
#	endif /* PCNFS */
#	ifdef NCSA
#		define tcp_close( s )	do { netclose( s ); netshut() } while(0)
#		define tcp_read( s, buf, len )	nread( s, buf, len )
#		define tcp_write( s, buf, len )	netwrite( s, buf, len )
#	endif /* NCSA */

#elif HAVE_CLOSESOCKET
#	define tcp_close( s )		closesocket( s )

#else
#	define tcp_close( s )		close( s )
#	define tcp_read( s, buf, len)	read( s, buf, len )
#	define tcp_write( s, buf, len)	write( s, buf, len )

#ifdef HAVE_PIPE
/*
 * Only use pipe() on systems where file and socket descriptors 
 * are interchangable
 */
#define USE_PIPE HAVE_PIPE
#endif

#endif /* MACOS */

#ifndef ioctl_t
#	define ioctl_t				int
#endif

#ifndef AC_SOCKET_INVALID
#	define AC_SOCKET_INVALID	(-1)
#endif
#ifndef AC_SOCKET_ERROR
#	define AC_SOCKET_ERROR		(-1)
#endif

#if !defined( HAVE_INET_ATON ) && !defined( inet_aton )
#define inet_aton ldap_pvt_inet_aton
struct in_addr;
int ldap_pvt_inet_aton LDAP_P(( const char *, struct in_addr * ));
#endif

#if	defined(__WIN32) && defined(_ALPHA)
/* NT on Alpha is hosed. */
#define AC_HTONL( l ) \
        ((((l)&0xff)<<24) + (((l)&0xff00)<<8) + \
         (((l)&0xff0000)>>8) + (((l)&0xff000000)>>24))
#define AC_NTOHL(l) AC_HTONL(l)

#elif defined(__alpha) && !defined(VMS)
/*
 * htonl and ntohl on the DEC Alpha under OSF 1 seem to only swap the
 * lower-order 32-bits of a (64-bit) long, so we define correct versions
 * here.
 */ 
#define AC_HTONL( l )	(((long)htonl( (l) & 0x00000000FFFFFFFF )) << 32 \
	| htonl( ( (l) & 0xFFFFFFFF00000000 ) >> 32 ))

#define AC_NTOHL( l ) (((long)ntohl( (l) & 0x00000000FFFFFFFF )) << 32 \
	| ntohl( ( (l) & 0xFFFFFFFF00000000 ) >> 32 ))

#else
#define AC_HTONL( l ) htonl( l )
#define AC_NTOHL( l ) ntohl( l )
#endif

/* htons()/ntohs() may be broken much like htonl()/ntohl() */
#define AC_HTONS( s ) htons( s )
#define AC_NTOHS( s ) ntohs( s )


#endif /* _AC_SOCKET_H_ */