CoCalc -- fcntl.c

GitHub Repository: att/ast
Path: blob/master/src/lib/libast/features/fcntl.c
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/***********************************************************************
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*                                                                      *
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*               This software is part of the ast package               *
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*          Copyright (c) 1985-2012 AT&T Intellectual Property          *
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*                      and is licensed under the                       *
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*                 Eclipse Public License, Version 1.0                  *
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*                    by AT&T Intellectual Property                     *
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*                                                                      *
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*                A copy of the License is available at                 *
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*          http://www.eclipse.org/org/documents/epl-v10.html           *
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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
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*                                                                      *
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*              Information and Software Systems Research               *
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*                            AT&T Research                             *
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*                           Florham Park NJ                            *
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*                                                                      *
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*                 Glenn Fowler <[email protected]>                  *
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*                  David Korn <[email protected]>                   *
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*                   Phong Vo <[email protected]>                    *
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*                                                                      *
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***********************************************************************/
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#pragma prototyped
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/*
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 * Glenn Fowler
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 * AT&T Research
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 *
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 * generate POSIX fcntl.h
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 */
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#include <sys/types.h>
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#include "FEATURE/lib"
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#define getdtablesize	______getdtablesize
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#define getpagesize	______getpagesize
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#define ioctl		______ioctl
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#if _typ_off64_t
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#undef	off_t
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#ifdef __STDC__
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#define	off_t		off_t
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#endif
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#endif
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#if _hdr_fcntl
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#include <fcntl.h>
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#endif
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#if _hdr_unistd
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#include <unistd.h>
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#endif
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#include <sys/stat.h>
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#include "FEATURE/fs"
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#undef	getdtablesize   
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#undef	getpagesize
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#undef	ioctl
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#include "FEATURE/tty"
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#if _typ_off64_t
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#undef	off_t
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#define	off_t	off64_t
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#endif
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int
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main()
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{
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	int		f_local = 0;
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	int		f_lck = 0;
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	int		o_local = 2;
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	printf("#pragma prototyped\n");
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	printf("\n");
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	printf("#if _typ_off64_t\n");
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	printf("#undef	off_t\n");
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	printf("#ifdef __STDC__\n");
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	printf("#define	off_t		off_t\n");
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	printf("#endif\n");
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	printf("#endif\n");
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	printf("\n");
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	printf("#include <ast_fs.h>\n");
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	printf("\n");
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	printf("#if _typ_off64_t\n");
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	printf("#undef	off_t\n");
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	printf("#ifdef __STDC__\n");
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	printf("#define	off_t		off_t\n");
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	printf("#endif\n");
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	printf("#endif\n");
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	printf("\n");
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	printf("#include <fcntl.h>\n");
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#if _hdr_mman
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	printf("#include <mman.h>\n");
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#else
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#if _sys_mman
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	printf("#include <sys/mman.h>\n");
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#endif
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#endif
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	printf("\n");
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#ifndef	FD_CLOEXEC
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	printf("#define FD_CLOEXEC	1\n");
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	printf("\n");
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#endif
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#ifndef	F_DUPFD
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#define NEED_F	1
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#else
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	if (F_DUPFD > f_local) f_local = F_DUPFD;
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#endif
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#ifndef	F_GETFD
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#define NEED_F	1
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#else
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	if (F_GETFD > f_local) f_local = F_GETFD;
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#endif
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#ifndef	F_GETFL
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#define NEED_F	1
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#else
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	if (F_GETFL > f_local) f_local = F_GETFL;
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#endif
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#ifndef	F_GETLK
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#define NEED_F	1
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#else
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	if (F_GETLK > f_local) f_local = F_GETLK;
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#endif
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#ifndef	F_RDLCK
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#define NEED_F	1
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#define NEED_LCK	1
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#else
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	if (F_RDLCK > f_lck) f_lck = F_RDLCK;
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#endif
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#ifndef	F_SETFD
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#define NEED_F	1
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#else
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	if (F_SETFD > f_local) f_local = F_SETFD;
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#endif
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#ifndef	F_SETFL
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#define NEED_F	1
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#else
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	if (F_SETFL > f_local) f_local = F_SETFL;
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#endif
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#ifndef	F_SETLK
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#define NEED_F	1
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#else
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	if (F_SETLK > f_local) f_local = F_SETLK;
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#endif
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#ifndef	F_SETLKW
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#define NEED_F	1
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#else
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	if (F_SETLKW > f_local) f_local = F_SETLKW;
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#endif
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#ifndef	F_UNLCK
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#define NEED_F	1
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#define NEED_LCK	1
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#else
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	if (F_UNLCK > f_lck) f_lck = F_UNLCK;
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#endif
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#ifndef	F_WRLCK
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#define NEED_F	1
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#define NEED_LCK	1
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#else
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	if (F_WRLCK > f_lck) f_lck = F_WRLCK;
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#endif
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#if	NEED_F
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	printf("#define fcntl		_ast_fcntl\n");
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#if	_lib_fcntl
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	printf("#define _lib_fcntl	1\n");
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#endif
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	printf("#define _ast_F_LOCAL	%d\n", f_local + 1);
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#ifndef	F_DUPFD
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	printf("#define F_DUPFD		%d\n", ++f_local);
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#endif
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#ifndef	F_GETFD
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	printf("#define F_GETFD		%d\n", ++f_local);
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#endif
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#ifndef	F_GETFL
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	printf("#define F_GETFL		%d\n", ++f_local);
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#endif
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#ifndef	F_GETLK
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	printf("#define F_GETLK		%d\n", ++f_local);
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#endif
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#ifndef	F_SETFD
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	printf("#define F_SETFD		%d\n", ++f_local);
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#endif
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#ifndef	F_SETFL
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	printf("#define F_SETFL		%d\n", ++f_local);
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#endif
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#ifndef	F_SETLK
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	printf("#define F_SETLK		%d\n", ++f_local);
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#endif
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#ifndef	F_SETLKW
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	printf("#define F_SETLKW	%d\n", ++f_local);
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#endif
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#if	NEED_LCK
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	printf("\n");
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#ifndef	F_RDLCK
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	printf("#define F_RDLCK		%d\n", f_lck++);
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#endif
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#ifndef	F_WRLCK
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	printf("#define F_WRLCK		%d\n", f_lck++);
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#endif
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#ifndef	F_UNLCK
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	printf("#define F_UNLCK		%d\n", f_lck++);
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#endif
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#endif
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	printf("\n");
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	if (f_lck == 3)
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	{
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		printf("struct flock\n");
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		printf("{\n");
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		printf("	short	l_type;\n");
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		printf("	short	l_whence;\n");
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		printf("	off_t	l_start;\n");
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		printf("	off_t	l_len;\n");
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		printf("	short	l_pid;\n");
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		printf("};\n");
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		printf("\n");
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	}
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	printf("\n");
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#endif
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#ifdef F_DUPFD_CLOEXEC
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	printf("#define F_dupfd_cloexec	F_DUPFD_CLOEXEC\n");
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#else
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	printf("#define F_dupfd_cloexec	F_DUPFD\n");
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#endif
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#ifndef	O_APPEND
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#define NEED_O	1
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#else
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	if (O_APPEND > o_local) o_local = O_APPEND;
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#endif
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#ifndef	O_CREAT
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#define NEED_O	1
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#else
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	if (O_CREAT > o_local) o_local = O_CREAT;
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#endif
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#ifndef	O_EXCL
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#define NEED_O	1
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#else
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	if (O_EXCL > o_local) o_local = O_EXCL;
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#endif
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#ifndef	O_NOCTTY
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#ifdef	TIOCNOTTY
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#define NEED_O	1
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#endif
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#else
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	if (O_NOCTTY > o_local) o_local = O_NOCTTY;
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#endif
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#ifndef	O_NONBLOCK
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#ifndef	O_NDELAY
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#define NEED_O	1
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#endif
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#else
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	if (O_NONBLOCK > o_local) o_local = O_NONBLOCK;
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#endif
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#ifndef	O_RDONLY
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#define NEED_O	1
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#endif
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#ifndef	O_RDWR
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#define NEED_O	1
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#endif
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#ifndef	O_TRUNC
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#define NEED_O	1
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#else
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	if (O_TRUNC > o_local) o_local = O_TRUNC;
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#endif
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#ifndef	O_WRONLY
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#define NEED_O	1
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#endif
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#if	NEED_O
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	printf("#define open			_ast_open\n");
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	printf("#define _ast_O_LOCAL		0%o\n", o_local<<1);
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#ifndef	O_RDONLY
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	printf("#define O_RDONLY		0\n");
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#endif
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#ifndef	O_WRONLY
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	printf("#define O_WRONLY		1\n");
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#endif
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#ifndef	O_RDWR
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	printf("#define O_RDWR			2\n");
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#endif
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#ifndef	O_APPEND
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	printf("#define O_APPEND		0%o\n", o_local <<= 1);
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#endif
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#ifndef	O_CREAT
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	printf("#define O_CREAT			0%o\n", o_local <<= 1);
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#endif
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#ifndef	O_EXCL
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	printf("#define O_EXCL			0%o\n", o_local <<= 1);
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#endif
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#ifndef	O_NOCTTY
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#ifdef	TIOCNOTTY
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	printf("#define O_NOCTTY		0%o\n", o_local <<= 1);
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#endif
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#endif
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#ifndef	O_NONBLOCK
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#ifndef	O_NDELAY
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	printf("#define O_NONBLOCK		0%o\n", o_local <<= 1);
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#endif
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#endif
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#ifndef	O_TRUNC
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	printf("#define O_TRUNC			0%o\n", o_local <<= 1);
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#endif
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#endif
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#ifndef	O_ACCMODE
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	printf("#define O_ACCMODE		(O_RDONLY|O_WRONLY|O_RDWR)\n");
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#endif
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#ifndef	O_NOCTTY
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#ifndef	TIOCNOTTY
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	printf("#define O_NOCTTY		0\n");
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#endif
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#endif
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#ifndef	O_NONBLOCK
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#ifdef	O_NDELAY
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	printf("#define O_NONBLOCK		O_NDELAY\n");
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#endif
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#endif
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#ifndef	O_BINARY
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	printf("#define O_BINARY		0\n");
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#endif
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#ifdef	O_CLOEXEC
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	printf("#define O_cloexec		O_CLOEXEC\n");
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#else
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	printf("#define O_cloexec		0\n");
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#endif
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#ifndef	O_TEMPORARY
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	printf("#define O_TEMPORARY		0\n");
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#endif
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#ifndef	O_TEXT
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	printf("#define O_TEXT			0\n");
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#endif
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#if	NEED_F || NEED_O
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	printf("\n");
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#if	NEED_F
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	printf("extern int	fcntl(int, int, ...);\n");
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#endif
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#if	NEED_O
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	printf("extern int	open(const char*, int, ...);\n");
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#endif
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#endif
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	printf("\n");
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	printf("#include <ast_fs.h>\n");
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	printf("#if _typ_off64_t\n");
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	printf("#undef	off_t\n");
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	printf("#define	off_t		off64_t\n");
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	printf("#endif\n");
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	printf("#if _lib_fstat64\n");
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	printf("#define fstat		fstat64\n");
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	printf("#endif\n");
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	printf("#if _lib_lstat64\n");
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	printf("#define lstat		lstat64\n");
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	printf("#endif\n");
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	printf("#if _lib_stat64\n");
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	printf("#define stat		stat64\n");
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	printf("#endif\n");
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	printf("#if _lib_creat64\n");
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	printf("#define creat		creat64\n");
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	printf("#endif\n");
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	printf("#if _lib_mmap64\n");
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	printf("#define mmap		mmap64\n");
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	printf("#endif\n");
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	printf("#if _lib_open64\n");
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	printf("#undef	open\n");
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	printf("#define open		open64\n");
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	printf("#endif\n");
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	return 0;
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}
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