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1.7 ! nicm 1: /* $OpenBSD: magic.h,v 1.6 2015/05/29 14:15:41 nicm Exp $ */
1.5 nicm 2:
1.1 tedu 3: /*
1.5 nicm 4: * Copyright (c) 2015 Nicholas Marriott <nicm@openbsd.org>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 tedu 17: */
18:
1.5 nicm 19: #ifndef MAGIC_H
20: #define MAGIC_H
21:
22: #include <sys/param.h>
23: #include <sys/tree.h>
24: #include <sys/queue.h>
25: #include <sys/stat.h>
26:
27: #include <err.h>
28: #include <regex.h>
29: #include <stdio.h>
1.7 ! nicm 30: #include <stdarg.h>
1.5 nicm 31: #include <stdlib.h>
32: #include <string.h>
33:
34: #define MAGIC_STRING_SIZE 31
1.6 nicm 35: #define MAGIC_STRENGTH_MULTIPLIER 10
1.5 nicm 36:
37: enum magic_type {
38: MAGIC_TYPE_NONE = 0,
39: MAGIC_TYPE_BYTE,
40: MAGIC_TYPE_SHORT,
41: MAGIC_TYPE_LONG,
42: MAGIC_TYPE_QUAD,
43: MAGIC_TYPE_UBYTE,
44: MAGIC_TYPE_USHORT,
45: MAGIC_TYPE_ULONG,
46: MAGIC_TYPE_UQUAD,
47: MAGIC_TYPE_FLOAT,
48: MAGIC_TYPE_DOUBLE,
49: MAGIC_TYPE_STRING,
50: MAGIC_TYPE_PSTRING,
51: MAGIC_TYPE_DATE,
52: MAGIC_TYPE_QDATE,
53: MAGIC_TYPE_LDATE,
54: MAGIC_TYPE_QLDATE,
55: MAGIC_TYPE_UDATE,
56: MAGIC_TYPE_UQDATE,
57: MAGIC_TYPE_ULDATE,
58: MAGIC_TYPE_UQLDATE,
59: MAGIC_TYPE_BESHORT,
60: MAGIC_TYPE_BELONG,
61: MAGIC_TYPE_BEQUAD,
62: MAGIC_TYPE_UBESHORT,
63: MAGIC_TYPE_UBELONG,
64: MAGIC_TYPE_UBEQUAD,
65: MAGIC_TYPE_BEFLOAT,
66: MAGIC_TYPE_BEDOUBLE,
67: MAGIC_TYPE_BEDATE,
68: MAGIC_TYPE_BEQDATE,
69: MAGIC_TYPE_BELDATE,
70: MAGIC_TYPE_BEQLDATE,
71: MAGIC_TYPE_UBEDATE,
72: MAGIC_TYPE_UBEQDATE,
73: MAGIC_TYPE_UBELDATE,
74: MAGIC_TYPE_UBEQLDATE,
75: MAGIC_TYPE_BESTRING16,
76: MAGIC_TYPE_LESHORT,
77: MAGIC_TYPE_LELONG,
78: MAGIC_TYPE_LEQUAD,
79: MAGIC_TYPE_ULESHORT,
80: MAGIC_TYPE_ULELONG,
81: MAGIC_TYPE_ULEQUAD,
82: MAGIC_TYPE_LEFLOAT,
83: MAGIC_TYPE_LEDOUBLE,
84: MAGIC_TYPE_LEDATE,
85: MAGIC_TYPE_LEQDATE,
86: MAGIC_TYPE_LELDATE,
87: MAGIC_TYPE_LEQLDATE,
88: MAGIC_TYPE_ULEDATE,
89: MAGIC_TYPE_ULEQDATE,
90: MAGIC_TYPE_ULELDATE,
91: MAGIC_TYPE_ULEQLDATE,
92: MAGIC_TYPE_LESTRING16,
93: MAGIC_TYPE_MELONG,
94: MAGIC_TYPE_MEDATE,
95: MAGIC_TYPE_MELDATE,
96: MAGIC_TYPE_REGEX,
97: MAGIC_TYPE_SEARCH,
98: MAGIC_TYPE_DEFAULT,
99: };
100:
101: TAILQ_HEAD(magic_lines, magic_line);
102: RB_HEAD(magic_tree, magic_line);
103:
104: struct magic_line {
105: struct magic *root;
106: u_int line;
107: u_int strength;
108: struct magic_line *parent;
109:
110: int text;
111:
112: int64_t offset;
113: int offset_relative;
114:
115: char indirect_type;
116: int indirect_relative;
117: int64_t indirect_offset;
118: char indirect_operator;
119: int64_t indirect_operand;
120:
121: enum magic_type type;
122: const char *type_string;
123: char type_operator;
124: int64_t type_operand;
125:
126: char test_operator;
127: int test_not;
128: const char *test_string;
129: size_t test_string_size;
130: uint64_t test_unsigned;
131: int64_t test_signed;
132:
133: int stringify;
134: const char *result;
135: const char *mimetype;
136:
137: struct magic_lines children;
138: TAILQ_ENTRY(magic_line) entry;
139: RB_ENTRY(magic_line) node;
140: };
1.1 tedu 141:
1.5 nicm 142: struct magic {
143: const char *path;
144: int warnings;
145:
146: struct magic_tree tree;
147:
148: int compiled;
149: regex_t format_short;
150: regex_t format_long;
151: regex_t format_quad;
152: regex_t format_float;
153: regex_t format_string;
154: };
1.1 tedu 155:
1.5 nicm 156: struct magic_state {
157: char out[4096];
158: const char *mimetype;
159: int text;
160:
161: const char *base;
162: size_t size;
163: int64_t offset;
1.1 tedu 164: };
165:
1.5 nicm 166: #define MAGIC_TEST_TEXT 0x1
167: #define MAGIC_TEST_MIME 0x2
168:
169: int magic_compare(struct magic_line *, struct magic_line *);
170: RB_PROTOTYPE(magic_tree, magic_line, node, magic_compare);
171:
172: char *magic_strtoull(const char *, uint64_t *);
173: char *magic_strtoll(const char *, int64_t *);
1.7 ! nicm 174: void magic_vwarnm(struct magic *, u_int, const char *, va_list);
! 175: void magic_warnm(struct magic *, u_int, const char *, ...)
! 176: __attribute__ ((format (printf, 3, 4)));
1.5 nicm 177: void magic_warn(struct magic_line *, const char *, ...)
178: __attribute__ ((format (printf, 2, 3)));
179:
180: void magic_dump(struct magic *);
181: struct magic *magic_load(FILE *, const char *, int);
182: const char *magic_test(struct magic *, const void *, size_t, int);
183:
184: #endif /* MAGIC_H */