1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * linux/include/linux/parser.h
4 *
5 * Header for lib/parser.c
6 * Intended use of these functions is parsing filesystem argument lists,
7 * but could potentially be used anywhere else that simple option=arg
8 * parsing is required.
9 */
10#ifndef _LINUX_PARSER_H
11#define _LINUX_PARSER_H
12
13/* associates an integer enumerator with a pattern string. */
14struct match_token {
15 int token;
16 const char *pattern;
17};
18
19typedef struct match_token match_table_t[];
20
21/* Maximum number of arguments that match_token will find in a pattern */
22enum {MAX_OPT_ARGS = 3};
23
24/* Describe the location within a string of a substring */
25typedef struct {
26 char *from;
27 char *to;
28} substring_t;
29
30int match_token(char *, const match_table_t table, substring_t args[]);
31int match_int(substring_t *, int *result);
32int match_uint(substring_t *s, unsigned int *result);
33int match_u64(substring_t *, u64 *result);
34int match_octal(substring_t *, int *result);
35int match_hex(substring_t *, int *result);
36bool match_wildcard(const char *pattern, const char *str);
37size_t match_strlcpy(char *, const substring_t *, size_t);
38char *match_strdup(const substring_t *);
39
40#endif /* _LINUX_PARSER_H */
41