/* $XConsortium: fcntl.c /main/3 1995/11/01 17:11:43 rswiston $ */
/***************************************************************
*                                                              *
*                      AT&T - PROPRIETARY                      *
*                                                              *
*         THIS IS PROPRIETARY SOURCE CODE LICENSED BY          *
*                          AT&T CORP.                          *
*                                                              *
*                Copyright (c) 1995 AT&T Corp.                 *
*                     All Rights Reserved                      *
*                                                              *
*           This software is licensed by AT&T Corp.            *
*       under the terms and conditions of the license in       *
*       http://www.research.att.com/orgs/ssr/book/reuse        *
*                                                              *
*               This software was created by the               *
*           Software Engineering Research Department           *
*                    AT&T Bell Laboratories                    *
*                                                              *
*               For further information contact                *
*                     gsf@research.att.com                     *
*                                                              *
***************************************************************/

/* : : generated by proto : : */

#if !defined(__PROTO__)
#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
#if defined(__cplusplus)
#define __MANGLE__	"C"
#else
#define __MANGLE__
#endif
#define __STDARG__
#define __PROTO__(x)	x
#define __OTORP__(x)
#define __PARAM__(n,o)	n
#if !defined(__STDC__) && !defined(__cplusplus)
#if !defined(c_plusplus)
#define const
#endif
#define signed
#define void		int
#define volatile
#define __V_		char
#else
#define __V_		void
#endif
#else
#define __PROTO__(x)	()
#define __OTORP__(x)	x
#define __PARAM__(n,o)	o
#define __MANGLE__
#define __V_		char
#define const
#define signed
#define void		int
#define volatile
#endif
#if defined(__cplusplus) || defined(c_plusplus)
#define __VARARG__	...
#else
#define __VARARG__
#endif
#if defined(__STDARG__)
#define __VA_START__(p,a)	va_start(p,a)
#else
#define __VA_START__(p,a)	va_start(p)
#endif
#endif
#include <ast.h>

#ifndef fcntl

NoN(fcntl)

#else

#include <ls.h>
#include <ast_tty.h>
#include <error.h>

#if F_SETFD >= _ast_F_LOCAL
#if _sys_filio
#include <sys/filio.h>
#endif
#endif

#if _lib_fcntl
#undef	fcntl
extern __MANGLE__ int	fcntl __PROTO__((int, int, ...));
#endif

int
_ast_fcntl __PARAM__((int fd, int op, ...), (va_alist)) __OTORP__(va_dcl)
{ __OTORP__(int fd; int op; )
	int		n;
	int		save_errno;
	struct stat	st;
	va_list		ap;

	save_errno = errno;
	__VA_START__(ap, op); __OTORP__(fd = va_arg(ap, int );op = va_arg(ap, int );)
	if (op >= _ast_F_LOCAL) switch (op)
	{
#if F_DUPFD >= _ast_F_LOCAL
	case F_DUPFD:
		n = va_arg(ap, int);
		op = dup2(fd, n);
		break;
#endif
#if F_GETFL >= _ast_F_LOCAL
	case F_GETFL:
		op = fstat(fd, &st);
		break;
#endif
#if F_SETFD >= _ast_F_LOCAL && defined(FIOCLEX)
	case F_SETFD:
		n = va_arg(ap, int);
		op = ioctl(fd, n == FD_CLOEXEC ? FIOCLEX : FIONCLEX, 0);
		break;
#endif
	default:
		errno = EINVAL;
		op = -1;
		break;
	}
	else
#if _lib_fcntl
	op = fcntl(fd, op, va_arg(ap, int));
#else
	{
		errno = EINVAL;
		op = -1;
	}
#endif
	va_end(ap);
	return(op);
}

#endif