1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                 Eclipse Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*          http://www.eclipse.org/org/documents/epl-v10.html           *
11*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * Glenn Fowler
25 * AT&T Research
26 *
27 * magic interface definitions
28 */
29
30#ifndef _MAGIC_H
31#define _MAGIC_H
32
33#include <sfio.h>
34#include <ls.h>
35
36#define MAGIC_VERSION	19961031L
37
38#ifndef MAGIC_FILE
39#define MAGIC_FILE	"lib/file/magic"
40#endif
41
42#ifndef MAGIC_DIR
43#define MAGIC_DIR	"lib/file"
44#endif
45
46#define MAGIC_FILE_ENV	"MAGICFILE"
47
48#define MAGIC_MIME	(1<<0)		/* magictype returns MIME type	*/
49#define MAGIC_VERBOSE	(1<<1)		/* verbose magic file errors	*/
50#define MAGIC_ALL	(1<<2)		/* list all table matches	*/
51
52#define MAGIC_USER	(1L<<16)	/* first user flag bit		*/
53
54struct Magic_s;
55struct Magicdisc_s;
56
57typedef struct Magicdisc_s
58{
59	unsigned long	version;	/* interface version		*/
60	unsigned long	flags;		/* MAGIC_* flags		*/
61	Error_f		errorf;		/* error function		*/
62} Magicdisc_t;
63
64typedef struct Magic_s
65{
66	const char*	id;		/* library id string		*/
67
68#ifdef _MAGIC_PRIVATE_
69	_MAGIC_PRIVATE_
70#endif
71
72} Magic_t;
73
74#if _BLD_ast && defined(__EXPORT__)
75#define extern		__EXPORT__
76#endif
77
78extern Magic_t*		magicopen(Magicdisc_t*);
79extern int		magicload(Magic_t*, const char*, unsigned long);
80extern int		magiclist(Magic_t*, Sfio_t*);
81extern char*		magictype(Magic_t*, Sfio_t*, const char*, struct stat*);
82extern int		magicclose(Magic_t*);
83
84#undef	extern
85
86#endif
87