1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 *
26 * Copyright 2015 PALO, Richard.  All rights reserved.
27 */
28
29#ifndef _SYS_KOBJ_LEX_H
30#define	_SYS_KOBJ_LEX_H
31
32#include <sys/ctype.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/*
39 * This file contains declarations for lex and its associated functions that
40 * are used by the kernel to parse the contents of system files.
41 *
42 * These lex functions are for a few selected kernel modules that are required
43 * to parse contents of file(s) on disk. This file is not for general kernel
44 * usage.
45 */
46
47#define	isunary(ch)	((ch) == '~' || (ch) == '-')
48
49#define	iswhite(ch)	((ch) == ' ' || (ch) == '\t')
50
51#define	isnewline(ch)	((ch) == '\n' || (ch) == '\r' || (ch) == '\f')
52
53#define	isalphanum(ch)	(isalpha(ch) || isdigit(ch))
54
55#define	isnamechar(ch)	(isalphanum(ch) || (ch) == '_' || (ch) == '-')
56
57typedef enum {
58	UNEXPECTED = -1,
59	EQUALS,
60	AMPERSAND,
61	BIT_OR,
62	STAR,
63	POUND,
64	COLON,
65	SEMICOLON,
66	COMMA,
67	SLASH,
68	WHITE_SPACE,
69	NEWLINE,
70	EOF,
71	STRING,
72	HEXVAL,
73	DECVAL,
74	NAME
75} token_t;
76
77#ifdef DEBUG
78/* string values for token_t */
79extern char *tokennames[];
80#endif /* DEBUG */
81
82/*
83 * return 1 with sptr pointing to the string represented by token
84 * On error returns NULL. The memory pointed to by sptr should be
85 * freed using free_string function.
86 */
87int kobj_get_string(u_longlong_t *sptr, char *token);
88void kobj_free_string(void *ptr, int len);
89
90/*
91 * returns decimal/octal/hex number in valuep
92 * return 0 on success, -1 on failure
93 */
94int kobj_getvalue(const char *token, u_longlong_t *valuep);
95
96/* prints a formated message via cmn_err */
97/*PRINTFLIKE3*/
98extern void kobj_file_err(int type,  struct _buf *file, char *fmt, ...)
99	__KPRINTFLIKE(3);
100
101/*
102 * returns the next token in the file on success,
103 * return -1 on failure
104 */
105token_t kobj_lex(struct _buf *file, char *val, size_t size);
106
107void kobj_find_eol(struct _buf *file);
108
109#ifdef	__cplusplus
110}
111#endif
112
113#endif /* !_SYS_KOBJ_LEX_H */
114