Annotation of src/usr.bin/file/file.h, Revision 1.3
1.3 ! millert 1: /* $OpenBSD: file.h,v 1.2 1996/06/26 05:32:57 deraadt Exp $ */
! 2:
1.1 deraadt 3: /*
4: * file.h - definitions for file(1) program
5: *
6: * Copyright (c) Ian F. Darwin, 1987.
7: * Written by Ian F. Darwin.
8: *
9: * This software is not subject to any license of the American Telephone
10: * and Telegraph Company or of the Regents of the University of California.
11: *
12: * Permission is granted to anyone to use this software for any purpose on
13: * any computer system, and to alter it and redistribute it freely, subject
14: * to the following restrictions:
15: *
16: * 1. The author is not responsible for the consequences of use of this
17: * software, no matter how awful, even if they arise from flaws in it.
18: *
19: * 2. The origin of this software must not be misrepresented, either by
20: * explicit claim or by omission. Since few users ever read sources,
21: * credits must appear in the documentation.
22: *
23: * 3. Altered versions must be plainly marked as such, and must not be
24: * misrepresented as being the original software. Since few users
25: * ever read sources, credits must appear in the documentation.
26: *
27: * 4. This notice may not be removed or altered.
28: */
29:
1.3 ! millert 30: #ifndef __file_h__
! 31: #define __file_h__
! 32:
! 33: typedef int32_t int32;
! 34: typedef u_int32_t uint32;
! 35:
1.1 deraadt 36: #ifndef HOWMANY
37: # define HOWMANY 8192 /* how much of the file to look at */
38: #endif
39: #define MAXMAGIS 1000 /* max entries in /etc/magic */
40: #define MAXDESC 50 /* max leng of text description */
41: #define MAXstring 32 /* max leng of "string" types */
42:
43: struct magic {
44: short flag;
45: #define INDIR 1 /* if '>(...)' appears, */
46: #define UNSIGNED 2 /* comparison is unsigned */
1.3 ! millert 47: #define ADD 4 /* if '>&' appears, */
1.1 deraadt 48: short cont_level; /* level of ">" */
49: struct {
50: char type; /* byte short long */
1.3 ! millert 51: int32 offset; /* offset from indirection */
1.1 deraadt 52: } in;
1.3 ! millert 53: int32 offset; /* offset to magic number */
1.1 deraadt 54: unsigned char reln; /* relation (0=eq, '>'=gt, etc) */
55: char type; /* int, short, long or string. */
56: char vallen; /* length of string value, if any */
57: #define BYTE 1
58: #define SHORT 2
59: #define LONG 4
60: #define STRING 5
61: #define DATE 6
62: #define BESHORT 7
63: #define BELONG 8
64: #define BEDATE 9
65: #define LESHORT 10
66: #define LELONG 11
67: #define LEDATE 12
68: union VALUETYPE {
69: unsigned char b;
70: unsigned short h;
1.3 ! millert 71: uint32 l;
1.1 deraadt 72: char s[MAXstring];
73: unsigned char hs[2]; /* 2 bytes of a fixed-endian "short" */
74: unsigned char hl[4]; /* 2 bytes of a fixed-endian "long" */
75: } value; /* either number or string */
1.3 ! millert 76: uint32 mask; /* mask before comparison with value */
1.1 deraadt 77: char nospflag; /* supress space character */
78: char desc[MAXDESC]; /* description */
79: };
80:
81: #include <stdio.h> /* Include that here, to make sure __P gets defined */
82:
83: #ifndef __P
84: # if __STDC__ || __cplusplus
85: # define __P(a) a
86: # else
87: # define __P(a) ()
88: # define const
89: # endif
90: #endif
91:
92: extern int apprentice __P((char *, int));
93: extern int ascmagic __P((unsigned char *, int));
94: extern void error __P((const char *, ...));
95: extern void ckfputs __P((const char *, FILE *));
96: struct stat;
97: extern int fsmagic __P((const char *, struct stat *));
98: extern int is_compress __P((const unsigned char *, int *));
99: extern int is_tar __P((unsigned char *, int));
100: extern void magwarn __P((const char *, ...));
101: extern void mdump __P((struct magic *));
102: extern void process __P((const char *, int));
103: extern void showstr __P((FILE *, const char *, int));
104: extern int softmagic __P((unsigned char *, int));
105: extern int tryit __P((unsigned char *, int, int));
106: extern int zmagic __P((unsigned char *, int));
107: extern void ckfprintf __P((FILE *, const char *, ...));
1.3 ! millert 108: extern uint32 signextend __P((struct magic *, unsigned int32));
! 109: extern int internatmagic __P((unsigned char *, int));
! 110: extern void tryelf __P((int, char *, int));
1.1 deraadt 111:
112:
113: extern int errno; /* Some unixes don't define this.. */
114:
115: extern char *progname; /* the program name */
116: extern char *magicfile; /* name of the magic file */
117: extern int lineno; /* current line number in magic file */
118:
119: extern struct magic *magic; /* array of magic entries */
120: extern int nmagic; /* number of valid magic[]s */
121:
122:
123: extern int debug; /* enable debugging? */
124: extern int zflag; /* process compressed files? */
125: extern int lflag; /* follow symbolic links? */
126:
127: extern int optind; /* From getopt(3) */
128: extern char *optarg;
129:
1.3 ! millert 130: #if defined(sun) || defined(__sun__) || defined (__sun)
! 131: # if defined(__svr4) || defined (__SVR4) || defined(__svr4__)
! 132: # define SOLARIS
! 133: # else
! 134: # define SUNOS
! 135: # endif
! 136: #endif
! 137:
! 138:
! 139: #if !defined(__STDC__) || defined(SUNOS) || defined(__convex__)
1.1 deraadt 140: extern int sys_nerr;
141: extern char *sys_errlist[];
142: #define strerror(e) \
143: (((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
144: #define strtoul(a, b, c) strtol(a, b, c)
145: #endif
146:
147: #ifndef MAXPATHLEN
148: #define MAXPATHLEN 512
149: #endif
1.3 ! millert 150:
! 151: #endif /* __file_h__ */
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