Virgin import of FILE 3.32

1 files changed, 162 insertions, 0 deletions

diff --git a/contrib/file/file.h b/contrib/file/file.h
new file mode 100644
index 0000000..1cca4e7
--- /dev/null
+++ b/contrib/file/file.h
@@ -0,0 +1,162 @@
+/*
+ * file.h - definitions for file(1) program
+ * @(#)$Id: file.h,v 1.32 2000/05/14 22:58:53 christos Exp $
+ *
+ * Copyright (c) Ian F. Darwin, 1987.
+ * Written by Ian F. Darwin.
+ *
+ * This software is not subject to any license of the American Telephone
+ * and Telegraph Company or of the Regents of the University of California.
+ *
+ * Permission is granted to anyone to use this software for any purpose on
+ * any computer system, and to alter it and redistribute it freely, subject
+ * to the following restrictions:
+ *
+ * 1. The author is not responsible for the consequences of use of this
+ *    software, no matter how awful, even if they arise from flaws in it.
+ *
+ * 2. The origin of this software must not be misrepresented, either by
+ *    explicit claim or by omission.  Since few users ever read sources,
+ *    credits must appear in the documentation.
+ *
+ * 3. Altered versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.  Since few users
+ *    ever read sources, credits must appear in the documentation.
+ *
+ * 4. This notice may not be removed or altered.
+ */
+
+#ifndef __file_h__
+#define __file_h__
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+typedef int int32;
+typedef unsigned int uint32;
+
+#ifndef HOWMANY
+# define HOWMANY 16384		/* how much of the file to look at */
+#endif
+#define MAXMAGIS 1000		/* max entries in /etc/magic */
+#define MAXDESC	50		/* max leng of text description */
+#define MAXstring 32		/* max leng of "string" types */
+
+struct magic {
+	short flag;		
+#define INDIR	1		/* if '>(...)' appears,  */
+#define	UNSIGNED 2		/* comparison is unsigned */
+#define ADD	4		/* if '>&' appears,  */
+	short cont_level;	/* level of ">" */
+	struct {
+		unsigned char type;	/* byte short long */
+		int32 offset;	/* offset from indirection */
+	} in;
+	int32 offset;		/* offset to magic number */
+	unsigned char reln;	/* relation (0=eq, '>'=gt, etc) */
+	unsigned char type;	/* int, short, long or string. */
+	char vallen;		/* length of string value, if any */
+#define 			BYTE	1
+#define				SHORT	2
+#define				LONG	4
+#define				STRING	5
+#define				DATE	6
+#define				BESHORT	7
+#define				BELONG	8
+#define				BEDATE	9
+#define				LESHORT	10
+#define				LELONG	11
+#define				LEDATE	12
+	union VALUETYPE {
+		unsigned char b;
+		unsigned short h;
+		uint32 l;
+		char s[MAXstring];
+		unsigned char hs[2];	/* 2 bytes of a fixed-endian "short" */
+		unsigned char hl[4];	/* 2 bytes of a fixed-endian "long" */
+	} value;		/* either number or string */
+	uint32 mask;	/* mask before comparison with value */
+	char nospflag;		/* supress space character */
+	char desc[MAXDESC];	/* description */
+};
+
+#define BIT(A)   (1 << (A))
+#define STRING_IGNORE_LOWERCASE		BIT(0)
+#define STRING_COMPACT_BLANK		BIT(1)
+#define STRING_COMPACT_OPTIONAL_BLANK	BIT(2)
+#define CHAR_IGNORE_LOWERCASE		'c'
+#define CHAR_COMPACT_BLANK		'B'
+#define CHAR_COMPACT_OPTIONAL_BLANK	'b'
+
+
+#include <stdio.h>	/* Include that here, to make sure __P gets defined */
+#include <errno.h>
+
+#ifndef __P
+# if defined(__STDC__) || defined(__cplusplus)
+#  define __P(a) a
+# else
+#  define __P(a) ()
+#  define const
+# endif
+#endif
+
+extern int   apprentice		__P((const char *, int));
+extern int   ascmagic		__P((unsigned char *, int));
+extern void  error		__P((const char *, ...));
+extern void  ckfputs		__P((const char *, FILE *));
+struct stat;
+extern int   fsmagic		__P((const char *, struct stat *));
+extern int   is_compress	__P((const unsigned char *, int *));
+extern int   is_tar		__P((unsigned char *, int));
+extern void  magwarn		__P((const char *, ...));
+extern void  mdump		__P((struct magic *));
+extern void  process		__P((const char *, int));
+extern void  showstr		__P((FILE *, const char *, int));
+extern int   softmagic		__P((unsigned char *, int));
+extern int   tryit		__P((unsigned char *, int, int));
+extern int   zmagic		__P((unsigned char *, int));
+extern void  ckfprintf		__P((FILE *, const char *, ...));
+extern uint32 signextend	__P((struct magic *, unsigned int32));
+extern int internatmagic	__P((unsigned char *, int));
+extern void tryelf		__P((int, unsigned char *, int));
+
+extern char *progname;		/* the program name 			*/
+extern const char *magicfile;	/* name of the magic file		*/
+extern int lineno;		/* current line number in magic file	*/
+
+extern struct magic *magic;	/* array of magic entries		*/
+extern int nmagic;		/* number of valid magic[]s 		*/
+
+
+extern int debug;		/* enable debugging?			*/
+extern int zflag;		/* process compressed files?		*/
+extern int lflag;		/* follow symbolic links?		*/
+extern int sflag;		/* read/analyze block special files?	*/
+extern int iflag;		/* Output types as mime-types		*/
+
+extern int optind;		/* From getopt(3)			*/
+extern char *optarg;
+
+#ifndef HAVE_STRERROR
+extern int sys_nerr;
+extern char *sys_errlist[];
+#define strerror(e) \
+	(((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
+#endif
+
+#ifndef HAVE_STRTOUL
+#define strtoul(a, b, c)	strtol(a, b, c)
+#endif
+
+#ifdef __STDC__
+#define FILE_RCSID(id) \
+static const char *rcsid(const char *p) { \
+	return rcsid(p = id); \
+}
+#else
+#define FILE_RCSID(id) static char *rcsid[] = id;
+#endif
+
+#endif /* __file_h__ */